1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Support for Medifield PNW Camera Imaging ISP subsystem.
4  *
5  * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
6  *
7  * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License version
11  * 2 as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  *
19  */
20 #include <linux/errno.h>
21 #include <linux/firmware.h>
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
24 #include <linux/io.h>
25 #include <linux/kernel.h>
26 #include <linux/kfifo.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/timer.h>
29 
30 #include <asm/iosf_mbi.h>
31 
32 #include <media/v4l2-event.h>
33 #include <media/videobuf-vmalloc.h>
34 
35 #define CREATE_TRACE_POINTS
36 #include "atomisp_trace_event.h"
37 
38 #include "atomisp_cmd.h"
39 #include "atomisp_common.h"
40 #include "atomisp_fops.h"
41 #include "atomisp_internal.h"
42 #include "atomisp_ioctl.h"
43 #include "atomisp-regs.h"
44 #include "atomisp_tables.h"
45 #include "atomisp_compat.h"
46 #include "atomisp_subdev.h"
47 #include "atomisp_dfs_tables.h"
48 
49 #include <hmm/hmm.h>
50 
51 #include "sh_css_hrt.h"
52 #include "sh_css_defs.h"
53 #include "system_global.h"
54 #include "sh_css_internal.h"
55 #include "sh_css_sp.h"
56 #include "gp_device.h"
57 #include "device_access.h"
58 #include "irq.h"
59 
60 #include "ia_css_types.h"
61 #include "ia_css_stream.h"
62 #include "ia_css_debug.h"
63 #include "bits.h"
64 
65 /* We should never need to run the flash for more than 2 frames.
66  * At 15fps this means 133ms. We set the timeout a bit longer.
67  * Each flash driver is supposed to set its own timeout, but
68  * just in case someone else changed the timeout, we set it
69  * here to make sure we don't damage the flash hardware. */
70 #define FLASH_TIMEOUT 800 /* ms */
71 
72 union host {
73 	struct {
74 		void *kernel_ptr;
75 		void __user *user_ptr;
76 		int size;
77 	} scalar;
78 	struct {
79 		void *hmm_ptr;
80 	} ptr;
81 };
82 
83 /*
84  * get sensor:dis71430/ov2720 related info from v4l2_subdev->priv data field.
85  * subdev->priv is set in mrst.c
86  */
87 struct camera_mipi_info *atomisp_to_sensor_mipi_info(struct v4l2_subdev *sd)
88 {
89 	return (struct camera_mipi_info *)v4l2_get_subdev_hostdata(sd);
90 }
91 
92 /*
93  * get struct atomisp_video_pipe from v4l2 video_device
94  */
95 struct atomisp_video_pipe *atomisp_to_video_pipe(struct video_device *dev)
96 {
97 	return (struct atomisp_video_pipe *)
98 	       container_of(dev, struct atomisp_video_pipe, vdev);
99 }
100 
101 /*
102  * get struct atomisp_acc_pipe from v4l2 video_device
103  */
104 struct atomisp_acc_pipe *atomisp_to_acc_pipe(struct video_device *dev)
105 {
106 	return (struct atomisp_acc_pipe *)
107 	       container_of(dev, struct atomisp_acc_pipe, vdev);
108 }
109 
110 static unsigned short atomisp_get_sensor_fps(struct atomisp_sub_device *asd)
111 {
112 	struct v4l2_subdev_frame_interval fi = { 0 };
113 	struct atomisp_device *isp = asd->isp;
114 
115 	unsigned short fps = 0;
116 	int ret;
117 
118 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
119 			       video, g_frame_interval, &fi);
120 
121 	if (!ret && fi.interval.numerator)
122 		fps = fi.interval.denominator / fi.interval.numerator;
123 
124 	return fps;
125 }
126 
127 /*
128  * DFS progress is shown as follows:
129  * 1. Target frequency is calculated according to FPS/Resolution/ISP running
130  *    mode.
131  * 2. Ratio is calculated using formula: 2 * HPLL / target frequency - 1
132  *    with proper rounding.
133  * 3. Set ratio to ISPFREQ40, 1 to FREQVALID and ISPFREQGUAR40
134  *    to 200MHz in ISPSSPM1.
135  * 4. Wait for FREQVALID to be cleared by P-Unit.
136  * 5. Wait for field ISPFREQSTAT40 in ISPSSPM1 turn to ratio set in 3.
137  */
138 static int write_target_freq_to_hw(struct atomisp_device *isp,
139 				   unsigned int new_freq)
140 {
141 	unsigned int ratio, timeout, guar_ratio;
142 	u32 isp_sspm1 = 0;
143 	int i;
144 
145 	if (!isp->hpll_freq) {
146 		dev_err(isp->dev, "failed to get hpll_freq. no change to freq\n");
147 		return -EINVAL;
148 	}
149 
150 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
151 	if (isp_sspm1 & ISP_FREQ_VALID_MASK) {
152 		dev_dbg(isp->dev, "clearing ISPSSPM1 valid bit.\n");
153 		iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
154 			       isp_sspm1 & ~(1 << ISP_FREQ_VALID_OFFSET));
155 	}
156 
157 	ratio = (2 * isp->hpll_freq + new_freq / 2) / new_freq - 1;
158 	guar_ratio = (2 * isp->hpll_freq + 200 / 2) / 200 - 1;
159 
160 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
161 	isp_sspm1 &= ~(0x1F << ISP_REQ_FREQ_OFFSET);
162 
163 	for (i = 0; i < ISP_DFS_TRY_TIMES; i++) {
164 		iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
165 			       isp_sspm1
166 			       | ratio << ISP_REQ_FREQ_OFFSET
167 			       | 1 << ISP_FREQ_VALID_OFFSET
168 			       | guar_ratio << ISP_REQ_GUAR_FREQ_OFFSET);
169 
170 		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
171 		timeout = 20;
172 		while ((isp_sspm1 & ISP_FREQ_VALID_MASK) && timeout) {
173 			iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
174 			dev_dbg(isp->dev, "waiting for ISPSSPM1 valid bit to be 0.\n");
175 			udelay(100);
176 			timeout--;
177 		}
178 
179 		if (timeout != 0)
180 			break;
181 	}
182 
183 	if (timeout == 0) {
184 		dev_err(isp->dev, "DFS failed due to HW error.\n");
185 		return -EINVAL;
186 	}
187 
188 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
189 	timeout = 10;
190 	while (((isp_sspm1 >> ISP_FREQ_STAT_OFFSET) != ratio) && timeout) {
191 		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
192 		dev_dbg(isp->dev, "waiting for ISPSSPM1 status bit to be 0x%x.\n",
193 			new_freq);
194 		udelay(100);
195 		timeout--;
196 	}
197 	if (timeout == 0) {
198 		dev_err(isp->dev, "DFS target freq is rejected by HW.\n");
199 		return -EINVAL;
200 	}
201 
202 	return 0;
203 }
204 
205 int atomisp_freq_scaling(struct atomisp_device *isp,
206 			 enum atomisp_dfs_mode mode,
207 			 bool force)
208 {
209 	struct pci_dev *pdev = to_pci_dev(isp->dev);
210 	/* FIXME! Only use subdev[0] status yet */
211 	struct atomisp_sub_device *asd = &isp->asd[0];
212 	const struct atomisp_dfs_config *dfs;
213 	unsigned int new_freq;
214 	struct atomisp_freq_scaling_rule curr_rules;
215 	int i, ret;
216 	unsigned short fps = 0;
217 
218 	if (isp->sw_contex.power_state != ATOM_ISP_POWER_UP) {
219 		dev_err(isp->dev, "DFS cannot proceed due to no power.\n");
220 		return -EINVAL;
221 	}
222 
223 	if ((pdev->device & ATOMISP_PCI_DEVICE_SOC_MASK) ==
224 	    ATOMISP_PCI_DEVICE_SOC_CHT && ATOMISP_USE_YUVPP(asd))
225 		isp->dfs = &dfs_config_cht_soc;
226 
227 	dfs = isp->dfs;
228 
229 	if (dfs->lowest_freq == 0 || dfs->max_freq_at_vmin == 0 ||
230 	    dfs->highest_freq == 0 || dfs->dfs_table_size == 0 ||
231 	    !dfs->dfs_table) {
232 		dev_err(isp->dev, "DFS configuration is invalid.\n");
233 		return -EINVAL;
234 	}
235 
236 	if (mode == ATOMISP_DFS_MODE_LOW) {
237 		new_freq = dfs->lowest_freq;
238 		goto done;
239 	}
240 
241 	if (mode == ATOMISP_DFS_MODE_MAX) {
242 		new_freq = dfs->highest_freq;
243 		goto done;
244 	}
245 
246 	fps = atomisp_get_sensor_fps(asd);
247 	if (fps == 0) {
248 		dev_info(isp->dev,
249 			 "Sensor didn't report FPS. Using DFS max mode.\n");
250 		new_freq = dfs->highest_freq;
251 		goto done;
252 	}
253 
254 	curr_rules.width = asd->fmt[asd->capture_pad].fmt.width;
255 	curr_rules.height = asd->fmt[asd->capture_pad].fmt.height;
256 	curr_rules.fps = fps;
257 	curr_rules.run_mode = asd->run_mode->val;
258 	/*
259 	 * For continuous mode, we need to make the capture setting applied
260 	 * since preview mode, because there is no chance to do this when
261 	 * starting image capture.
262 	 */
263 	if (asd->continuous_mode->val) {
264 		if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO)
265 			curr_rules.run_mode = ATOMISP_RUN_MODE_SDV;
266 		else
267 			curr_rules.run_mode =
268 			    ATOMISP_RUN_MODE_CONTINUOUS_CAPTURE;
269 	}
270 
271 	/* search for the target frequency by looping freq rules*/
272 	for (i = 0; i < dfs->dfs_table_size; i++) {
273 		if (curr_rules.width != dfs->dfs_table[i].width &&
274 		    dfs->dfs_table[i].width != ISP_FREQ_RULE_ANY)
275 			continue;
276 		if (curr_rules.height != dfs->dfs_table[i].height &&
277 		    dfs->dfs_table[i].height != ISP_FREQ_RULE_ANY)
278 			continue;
279 		if (curr_rules.fps != dfs->dfs_table[i].fps &&
280 		    dfs->dfs_table[i].fps != ISP_FREQ_RULE_ANY)
281 			continue;
282 		if (curr_rules.run_mode != dfs->dfs_table[i].run_mode &&
283 		    dfs->dfs_table[i].run_mode != ISP_FREQ_RULE_ANY)
284 			continue;
285 		break;
286 	}
287 
288 	if (i == dfs->dfs_table_size)
289 		new_freq = dfs->max_freq_at_vmin;
290 	else
291 		new_freq = dfs->dfs_table[i].isp_freq;
292 
293 done:
294 	dev_dbg(isp->dev, "DFS target frequency=%d.\n", new_freq);
295 
296 	if ((new_freq == isp->sw_contex.running_freq) && !force)
297 		return 0;
298 
299 	dev_dbg(isp->dev, "Programming DFS frequency to %d\n", new_freq);
300 
301 	ret = write_target_freq_to_hw(isp, new_freq);
302 	if (!ret) {
303 		isp->sw_contex.running_freq = new_freq;
304 		trace_ipu_pstate(new_freq, -1);
305 	}
306 	return ret;
307 }
308 
309 /*
310  * reset and restore ISP
311  */
312 int atomisp_reset(struct atomisp_device *isp)
313 {
314 	/* Reset ISP by power-cycling it */
315 	int ret = 0;
316 
317 	dev_dbg(isp->dev, "%s\n", __func__);
318 	atomisp_css_suspend(isp);
319 	ret = atomisp_runtime_suspend(isp->dev);
320 	if (ret < 0)
321 		dev_err(isp->dev, "atomisp_runtime_suspend failed, %d\n", ret);
322 	ret = atomisp_mrfld_power_down(isp);
323 	if (ret < 0) {
324 		dev_err(isp->dev, "can not disable ISP power\n");
325 	} else {
326 		ret = atomisp_mrfld_power_up(isp);
327 		if (ret < 0)
328 			dev_err(isp->dev, "can not enable ISP power\n");
329 		ret = atomisp_runtime_resume(isp->dev);
330 		if (ret < 0)
331 			dev_err(isp->dev, "atomisp_runtime_resume failed, %d\n", ret);
332 	}
333 	ret = atomisp_css_resume(isp);
334 	if (ret)
335 		isp->isp_fatal_error = true;
336 
337 	return ret;
338 }
339 
340 /*
341  * interrupt disable functions
342  */
343 static void disable_isp_irq(enum hrt_isp_css_irq irq)
344 {
345 	irq_disable_channel(IRQ0_ID, irq);
346 
347 	if (irq != hrt_isp_css_irq_sp)
348 		return;
349 
350 	cnd_sp_irq_enable(SP0_ID, false);
351 }
352 
353 /*
354  * interrupt clean function
355  */
356 static void clear_isp_irq(enum hrt_isp_css_irq irq)
357 {
358 	irq_clear_all(IRQ0_ID);
359 }
360 
361 void atomisp_msi_irq_init(struct atomisp_device *isp)
362 {
363 	struct pci_dev *pdev = to_pci_dev(isp->dev);
364 	u32 msg32;
365 	u16 msg16;
366 
367 	pci_read_config_dword(pdev, PCI_MSI_CAPID, &msg32);
368 	msg32 |= 1 << MSI_ENABLE_BIT;
369 	pci_write_config_dword(pdev, PCI_MSI_CAPID, msg32);
370 
371 	msg32 = (1 << INTR_IER) | (1 << INTR_IIR);
372 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg32);
373 
374 	pci_read_config_word(pdev, PCI_COMMAND, &msg16);
375 	msg16 |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
376 		  PCI_COMMAND_INTX_DISABLE);
377 	pci_write_config_word(pdev, PCI_COMMAND, msg16);
378 }
379 
380 void atomisp_msi_irq_uninit(struct atomisp_device *isp)
381 {
382 	struct pci_dev *pdev = to_pci_dev(isp->dev);
383 	u32 msg32;
384 	u16 msg16;
385 
386 	pci_read_config_dword(pdev, PCI_MSI_CAPID, &msg32);
387 	msg32 &=  ~(1 << MSI_ENABLE_BIT);
388 	pci_write_config_dword(pdev, PCI_MSI_CAPID, msg32);
389 
390 	msg32 = 0x0;
391 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg32);
392 
393 	pci_read_config_word(pdev, PCI_COMMAND, &msg16);
394 	msg16 &= ~(PCI_COMMAND_MASTER);
395 	pci_write_config_word(pdev, PCI_COMMAND, msg16);
396 }
397 
398 static void atomisp_sof_event(struct atomisp_sub_device *asd)
399 {
400 	struct v4l2_event event = {0};
401 
402 	event.type = V4L2_EVENT_FRAME_SYNC;
403 	event.u.frame_sync.frame_sequence = atomic_read(&asd->sof_count);
404 
405 	v4l2_event_queue(asd->subdev.devnode, &event);
406 }
407 
408 void atomisp_eof_event(struct atomisp_sub_device *asd, uint8_t exp_id)
409 {
410 	struct v4l2_event event = {0};
411 
412 	event.type = V4L2_EVENT_FRAME_END;
413 	event.u.frame_sync.frame_sequence = exp_id;
414 
415 	v4l2_event_queue(asd->subdev.devnode, &event);
416 }
417 
418 static void atomisp_3a_stats_ready_event(struct atomisp_sub_device *asd,
419 	uint8_t exp_id)
420 {
421 	struct v4l2_event event = {0};
422 
423 	event.type = V4L2_EVENT_ATOMISP_3A_STATS_READY;
424 	event.u.frame_sync.frame_sequence = exp_id;
425 
426 	v4l2_event_queue(asd->subdev.devnode, &event);
427 }
428 
429 static void atomisp_metadata_ready_event(struct atomisp_sub_device *asd,
430 	enum atomisp_metadata_type md_type)
431 {
432 	struct v4l2_event event = {0};
433 
434 	event.type = V4L2_EVENT_ATOMISP_METADATA_READY;
435 	event.u.data[0] = md_type;
436 
437 	v4l2_event_queue(asd->subdev.devnode, &event);
438 }
439 
440 static void atomisp_reset_event(struct atomisp_sub_device *asd)
441 {
442 	struct v4l2_event event = {0};
443 
444 	event.type = V4L2_EVENT_ATOMISP_CSS_RESET;
445 
446 	v4l2_event_queue(asd->subdev.devnode, &event);
447 }
448 
449 static void print_csi_rx_errors(enum mipi_port_id port,
450 				struct atomisp_device *isp)
451 {
452 	u32 infos = 0;
453 
454 	atomisp_css_rx_get_irq_info(port, &infos);
455 
456 	dev_err(isp->dev, "CSI Receiver port %d errors:\n", port);
457 	if (infos & IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN)
458 		dev_err(isp->dev, "  buffer overrun");
459 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_SOT)
460 		dev_err(isp->dev, "  start-of-transmission error");
461 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC)
462 		dev_err(isp->dev, "  start-of-transmission sync error");
463 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_CONTROL)
464 		dev_err(isp->dev, "  control error");
465 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE)
466 		dev_err(isp->dev, "  2 or more ECC errors");
467 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_CRC)
468 		dev_err(isp->dev, "  CRC mismatch");
469 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID)
470 		dev_err(isp->dev, "  unknown error");
471 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC)
472 		dev_err(isp->dev, "  frame sync error");
473 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA)
474 		dev_err(isp->dev, "  frame data error");
475 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT)
476 		dev_err(isp->dev, "  data timeout");
477 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC)
478 		dev_err(isp->dev, "  unknown escape command entry");
479 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC)
480 		dev_err(isp->dev, "  line sync error");
481 }
482 
483 /* Clear irq reg */
484 static void clear_irq_reg(struct atomisp_device *isp)
485 {
486 	struct pci_dev *pdev = to_pci_dev(isp->dev);
487 	u32 msg_ret;
488 
489 	pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &msg_ret);
490 	msg_ret |= 1 << INTR_IIR;
491 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg_ret);
492 }
493 
494 static struct atomisp_sub_device *
495 __get_asd_from_port(struct atomisp_device *isp, enum mipi_port_id port)
496 {
497 	int i;
498 
499 	/* Check which isp subdev to send eof */
500 	for (i = 0; i < isp->num_of_streams; i++) {
501 		struct atomisp_sub_device *asd = &isp->asd[i];
502 		struct camera_mipi_info *mipi_info;
503 
504 		mipi_info = atomisp_to_sensor_mipi_info(
505 				isp->inputs[asd->input_curr].camera);
506 
507 		if (asd->streaming == ATOMISP_DEVICE_STREAMING_ENABLED &&
508 		    __get_mipi_port(isp, mipi_info->port) == port) {
509 			return asd;
510 		}
511 	}
512 
513 	return NULL;
514 }
515 
516 /* interrupt handling function*/
517 irqreturn_t atomisp_isr(int irq, void *dev)
518 {
519 	struct atomisp_device *isp = (struct atomisp_device *)dev;
520 	struct atomisp_sub_device *asd;
521 	struct atomisp_css_event eof_event;
522 	unsigned int irq_infos = 0;
523 	unsigned long flags;
524 	unsigned int i;
525 	int err;
526 
527 	spin_lock_irqsave(&isp->lock, flags);
528 	if (isp->sw_contex.power_state != ATOM_ISP_POWER_UP ||
529 	    !isp->css_initialized) {
530 		spin_unlock_irqrestore(&isp->lock, flags);
531 		return IRQ_HANDLED;
532 	}
533 	err = atomisp_css_irq_translate(isp, &irq_infos);
534 	if (err) {
535 		spin_unlock_irqrestore(&isp->lock, flags);
536 		return IRQ_NONE;
537 	}
538 
539 	clear_irq_reg(isp);
540 
541 	if (!atomisp_streaming_count(isp))
542 		goto out_nowake;
543 
544 	for (i = 0; i < isp->num_of_streams; i++) {
545 		asd = &isp->asd[i];
546 
547 		if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
548 			continue;
549 		/*
550 		 * Current SOF only support one stream, so the SOF only valid
551 		 * either solely one stream is running
552 		 */
553 		if (irq_infos & IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF) {
554 			atomic_inc(&asd->sof_count);
555 			atomisp_sof_event(asd);
556 
557 			/* If sequence_temp and sequence are the same
558 			 * there where no frames lost so we can increase
559 			 * sequence_temp.
560 			 * If not then processing of frame is still in progress
561 			 * and driver needs to keep old sequence_temp value.
562 			 * NOTE: There is assumption here that ISP will not
563 			 * start processing next frame from sensor before old
564 			 * one is completely done. */
565 			if (atomic_read(&asd->sequence) == atomic_read(
566 				&asd->sequence_temp))
567 				atomic_set(&asd->sequence_temp,
568 					   atomic_read(&asd->sof_count));
569 		}
570 		if (irq_infos & IA_CSS_IRQ_INFO_EVENTS_READY)
571 			atomic_set(&asd->sequence,
572 				   atomic_read(&asd->sequence_temp));
573 	}
574 
575 	if (irq_infos & IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF) {
576 		dev_dbg_ratelimited(isp->dev,
577 				    "irq:0x%x (SOF)\n",
578 				    irq_infos);
579 		irq_infos &= ~IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF;
580 	}
581 
582 	if ((irq_infos & IA_CSS_IRQ_INFO_INPUT_SYSTEM_ERROR) ||
583 	    (irq_infos & IA_CSS_IRQ_INFO_IF_ERROR)) {
584 		/* handle mipi receiver error */
585 		u32 rx_infos;
586 		enum mipi_port_id port;
587 
588 		for (port = MIPI_PORT0_ID; port <= MIPI_PORT2_ID;
589 		     port++) {
590 			print_csi_rx_errors(port, isp);
591 			atomisp_css_rx_get_irq_info(port, &rx_infos);
592 			atomisp_css_rx_clear_irq_info(port, rx_infos);
593 		}
594 	}
595 
596 	if (irq_infos & IA_CSS_IRQ_INFO_ISYS_EVENTS_READY) {
597 		while (ia_css_dequeue_isys_event(&eof_event.event) ==
598 		       0) {
599 			/* EOF Event does not have the css_pipe returned */
600 			asd = __get_asd_from_port(isp, eof_event.event.port);
601 			if (!asd) {
602 				dev_err(isp->dev, "%s: ISYS event, but no subdev.event:%d",
603 					__func__, eof_event.event.type);
604 				continue;
605 			}
606 
607 			atomisp_eof_event(asd, eof_event.event.exp_id);
608 			dev_dbg_ratelimited(isp->dev,
609 					    "%s ISYS event: EOF exp_id %d, asd %d\n",
610 					    __func__, eof_event.event.exp_id,
611 					    asd->index);
612 		}
613 
614 		irq_infos &= ~IA_CSS_IRQ_INFO_ISYS_EVENTS_READY;
615 		if (irq_infos == 0)
616 			goto out_nowake;
617 	}
618 
619 	spin_unlock_irqrestore(&isp->lock, flags);
620 
621 	dev_dbg_ratelimited(isp->dev, "irq:0x%x (unhandled)\n", irq_infos);
622 
623 	return IRQ_WAKE_THREAD;
624 
625 out_nowake:
626 	spin_unlock_irqrestore(&isp->lock, flags);
627 
628 	if (irq_infos)
629 		dev_dbg_ratelimited(isp->dev, "irq:0x%x (ignored, as not streaming anymore)\n",
630 				    irq_infos);
631 
632 	return IRQ_HANDLED;
633 }
634 
635 void atomisp_clear_css_buffer_counters(struct atomisp_sub_device *asd)
636 {
637 	int i;
638 
639 	memset(asd->s3a_bufs_in_css, 0, sizeof(asd->s3a_bufs_in_css));
640 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++)
641 		memset(asd->metadata_bufs_in_css[i], 0,
642 		       sizeof(asd->metadata_bufs_in_css[i]));
643 	asd->dis_bufs_in_css = 0;
644 	asd->video_out_capture.buffers_in_css = 0;
645 	asd->video_out_vf.buffers_in_css = 0;
646 	asd->video_out_preview.buffers_in_css = 0;
647 	asd->video_out_video_capture.buffers_in_css = 0;
648 }
649 
650 /* ISP2400 */
651 bool atomisp_buffers_queued(struct atomisp_sub_device *asd)
652 {
653 	return asd->video_out_capture.buffers_in_css ||
654 	       asd->video_out_vf.buffers_in_css ||
655 	       asd->video_out_preview.buffers_in_css ||
656 	       asd->video_out_video_capture.buffers_in_css;
657 }
658 
659 /* ISP2401 */
660 bool atomisp_buffers_queued_pipe(struct atomisp_video_pipe *pipe)
661 {
662 	return pipe->buffers_in_css ? true : false;
663 }
664 
665 /* 0x100000 is the start of dmem inside SP */
666 #define SP_DMEM_BASE	0x100000
667 
668 void dump_sp_dmem(struct atomisp_device *isp, unsigned int addr,
669 		  unsigned int size)
670 {
671 	unsigned int data = 0;
672 	unsigned int size32 = DIV_ROUND_UP(size, sizeof(u32));
673 
674 	dev_dbg(isp->dev, "atomisp mmio base: %p\n", isp->base);
675 	dev_dbg(isp->dev, "%s, addr:0x%x, size: %d, size32: %d\n", __func__,
676 		addr, size, size32);
677 	if (size32 * 4 + addr > 0x4000) {
678 		dev_err(isp->dev, "illegal size (%d) or addr (0x%x)\n",
679 			size32, addr);
680 		return;
681 	}
682 	addr += SP_DMEM_BASE;
683 	addr &= 0x003FFFFF;
684 	do {
685 		data = readl(isp->base + addr);
686 		dev_dbg(isp->dev, "%s, \t [0x%x]:0x%x\n", __func__, addr, data);
687 		addr += sizeof(u32);
688 	} while (--size32);
689 }
690 
691 static struct videobuf_buffer *atomisp_css_frame_to_vbuf(
692     struct atomisp_video_pipe *pipe, struct ia_css_frame *frame)
693 {
694 	struct videobuf_vmalloc_memory *vm_mem;
695 	struct ia_css_frame *handle;
696 	int i;
697 
698 	for (i = 0; pipe->capq.bufs[i]; i++) {
699 		vm_mem = pipe->capq.bufs[i]->priv;
700 		handle = vm_mem->vaddr;
701 		if (handle && handle->data == frame->data)
702 			return pipe->capq.bufs[i];
703 	}
704 
705 	return NULL;
706 }
707 
708 static void atomisp_flush_video_pipe(struct atomisp_sub_device *asd,
709 				     struct atomisp_video_pipe *pipe)
710 {
711 	unsigned long irqflags;
712 	int i;
713 
714 	if (!pipe->users)
715 		return;
716 
717 	for (i = 0; pipe->capq.bufs[i]; i++) {
718 		spin_lock_irqsave(&pipe->irq_lock, irqflags);
719 		if (pipe->capq.bufs[i]->state == VIDEOBUF_ACTIVE ||
720 		    pipe->capq.bufs[i]->state == VIDEOBUF_QUEUED) {
721 			pipe->capq.bufs[i]->ts = ktime_get_ns();
722 			pipe->capq.bufs[i]->field_count =
723 			    atomic_read(&asd->sequence) << 1;
724 			dev_dbg(asd->isp->dev, "release buffers on device %s\n",
725 				pipe->vdev.name);
726 			if (pipe->capq.bufs[i]->state == VIDEOBUF_QUEUED)
727 				list_del_init(&pipe->capq.bufs[i]->queue);
728 			pipe->capq.bufs[i]->state = VIDEOBUF_ERROR;
729 			wake_up(&pipe->capq.bufs[i]->done);
730 		}
731 		spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
732 	}
733 }
734 
735 /* Returns queued buffers back to video-core */
736 void atomisp_flush_bufs_and_wakeup(struct atomisp_sub_device *asd)
737 {
738 	atomisp_flush_video_pipe(asd, &asd->video_out_capture);
739 	atomisp_flush_video_pipe(asd, &asd->video_out_vf);
740 	atomisp_flush_video_pipe(asd, &asd->video_out_preview);
741 	atomisp_flush_video_pipe(asd, &asd->video_out_video_capture);
742 }
743 
744 /* clean out the parameters that did not apply */
745 void atomisp_flush_params_queue(struct atomisp_video_pipe *pipe)
746 {
747 	struct atomisp_css_params_with_list *param;
748 
749 	while (!list_empty(&pipe->per_frame_params)) {
750 		param = list_entry(pipe->per_frame_params.next,
751 				   struct atomisp_css_params_with_list, list);
752 		list_del(&param->list);
753 		atomisp_free_css_parameters(&param->params);
754 		kvfree(param);
755 	}
756 }
757 
758 /* Re-queue per-frame parameters */
759 static void atomisp_recover_params_queue(struct atomisp_video_pipe *pipe)
760 {
761 	struct atomisp_css_params_with_list *param;
762 	int i;
763 
764 	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
765 		param = pipe->frame_params[i];
766 		if (param)
767 			list_add_tail(&param->list, &pipe->per_frame_params);
768 		pipe->frame_params[i] = NULL;
769 	}
770 	atomisp_handle_parameter_and_buffer(pipe);
771 }
772 
773 /* find atomisp_video_pipe with css pipe id, buffer type and atomisp run_mode */
774 static struct atomisp_video_pipe *__atomisp_get_pipe(
775     struct atomisp_sub_device *asd,
776     enum atomisp_input_stream_id stream_id,
777     enum ia_css_pipe_id css_pipe_id,
778     enum ia_css_buffer_type buf_type)
779 {
780 	struct atomisp_device *isp = asd->isp;
781 
782 	if (css_pipe_id == IA_CSS_PIPE_ID_COPY &&
783 	    isp->inputs[asd->input_curr].camera_caps->
784 	    sensor[asd->sensor_curr].stream_num > 1) {
785 		switch (stream_id) {
786 		case ATOMISP_INPUT_STREAM_PREVIEW:
787 			return &asd->video_out_preview;
788 		case ATOMISP_INPUT_STREAM_POSTVIEW:
789 			return &asd->video_out_vf;
790 		case ATOMISP_INPUT_STREAM_VIDEO:
791 			return &asd->video_out_video_capture;
792 		case ATOMISP_INPUT_STREAM_CAPTURE:
793 		default:
794 			return &asd->video_out_capture;
795 		}
796 	}
797 
798 	/* video is same in online as in continuouscapture mode */
799 	if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
800 		/*
801 		 * Disable vf_pp and run CSS in still capture mode. In this
802 		 * mode, CSS does not cause extra latency with buffering, but
803 		 * scaling is not available.
804 		 */
805 		return &asd->video_out_capture;
806 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
807 		/*
808 		 * Disable vf_pp and run CSS in video mode. This allows using
809 		 * ISP scaling but it has one frame delay due to CSS internal
810 		 * buffering.
811 		 */
812 		return &asd->video_out_video_capture;
813 	} else if (css_pipe_id == IA_CSS_PIPE_ID_YUVPP) {
814 		/*
815 		 * to SOC camera, yuvpp pipe is run for capture/video/SDV/ZSL.
816 		 */
817 		if (asd->continuous_mode->val) {
818 			if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
819 				/* SDV case */
820 				switch (buf_type) {
821 				case IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME:
822 					return &asd->video_out_video_capture;
823 				case IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME:
824 					return &asd->video_out_preview;
825 				case IA_CSS_BUFFER_TYPE_OUTPUT_FRAME:
826 					return &asd->video_out_capture;
827 				default:
828 					return &asd->video_out_vf;
829 				}
830 			} else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
831 				/* ZSL case */
832 				switch (buf_type) {
833 				case IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME:
834 					return &asd->video_out_preview;
835 				case IA_CSS_BUFFER_TYPE_OUTPUT_FRAME:
836 					return &asd->video_out_capture;
837 				default:
838 					return &asd->video_out_vf;
839 				}
840 			}
841 		} else if (buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME) {
842 			switch (asd->run_mode->val) {
843 			case ATOMISP_RUN_MODE_VIDEO:
844 				return &asd->video_out_video_capture;
845 			case ATOMISP_RUN_MODE_PREVIEW:
846 				return &asd->video_out_preview;
847 			default:
848 				return &asd->video_out_capture;
849 			}
850 		} else if (buf_type == IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME) {
851 			if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO)
852 				return &asd->video_out_preview;
853 			else
854 				return &asd->video_out_vf;
855 		}
856 	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
857 		/* For online video or SDV video pipe. */
858 		if (css_pipe_id == IA_CSS_PIPE_ID_VIDEO ||
859 		    css_pipe_id == IA_CSS_PIPE_ID_COPY ||
860 		    css_pipe_id == IA_CSS_PIPE_ID_YUVPP) {
861 			if (buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
862 				return &asd->video_out_video_capture;
863 			return &asd->video_out_preview;
864 		}
865 	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
866 		/* For online preview or ZSL preview pipe. */
867 		if (css_pipe_id == IA_CSS_PIPE_ID_PREVIEW ||
868 		    css_pipe_id == IA_CSS_PIPE_ID_COPY ||
869 		    css_pipe_id == IA_CSS_PIPE_ID_YUVPP)
870 			return &asd->video_out_preview;
871 	}
872 	/* For capture pipe. */
873 	if (buf_type == IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME)
874 		return &asd->video_out_vf;
875 	return &asd->video_out_capture;
876 }
877 
878 enum atomisp_metadata_type
879 atomisp_get_metadata_type(struct atomisp_sub_device *asd,
880 			  enum ia_css_pipe_id pipe_id)
881 {
882 	if (!asd->continuous_mode->val)
883 		return ATOMISP_MAIN_METADATA;
884 
885 	if (pipe_id == IA_CSS_PIPE_ID_CAPTURE) /* online capture pipe */
886 		return ATOMISP_SEC_METADATA;
887 	else
888 		return ATOMISP_MAIN_METADATA;
889 }
890 
891 void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
892 		      enum ia_css_buffer_type buf_type,
893 		      enum ia_css_pipe_id css_pipe_id,
894 		      bool q_buffers, enum atomisp_input_stream_id stream_id)
895 {
896 	struct videobuf_buffer *vb = NULL;
897 	struct atomisp_video_pipe *pipe = NULL;
898 	struct atomisp_css_buffer buffer;
899 	bool requeue = false;
900 	int err;
901 	unsigned long irqflags;
902 	struct ia_css_frame *frame = NULL;
903 	struct atomisp_s3a_buf *s3a_buf = NULL, *_s3a_buf_tmp, *s3a_iter;
904 	struct atomisp_dis_buf *dis_buf = NULL, *_dis_buf_tmp, *dis_iter;
905 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf_tmp, *md_iter;
906 	enum atomisp_metadata_type md_type;
907 	struct atomisp_device *isp = asd->isp;
908 	struct v4l2_control ctrl;
909 	bool reset_wdt_timer = false;
910 
911 	if (
912 	    buf_type != IA_CSS_BUFFER_TYPE_METADATA &&
913 	    buf_type != IA_CSS_BUFFER_TYPE_3A_STATISTICS &&
914 	    buf_type != IA_CSS_BUFFER_TYPE_DIS_STATISTICS &&
915 	    buf_type != IA_CSS_BUFFER_TYPE_OUTPUT_FRAME &&
916 	    buf_type != IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME &&
917 	    buf_type != IA_CSS_BUFFER_TYPE_RAW_OUTPUT_FRAME &&
918 	    buf_type != IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME &&
919 	    buf_type != IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME) {
920 		dev_err(isp->dev, "%s, unsupported buffer type: %d\n",
921 			__func__, buf_type);
922 		return;
923 	}
924 
925 	memset(&buffer, 0, sizeof(struct atomisp_css_buffer));
926 	buffer.css_buffer.type = buf_type;
927 	err = atomisp_css_dequeue_buffer(asd, stream_id, css_pipe_id,
928 					 buf_type, &buffer);
929 	if (err) {
930 		dev_err(isp->dev,
931 			"atomisp_css_dequeue_buffer failed: 0x%x\n", err);
932 		return;
933 	}
934 
935 	/* need to know the atomisp pipe for frame buffers */
936 	pipe = __atomisp_get_pipe(asd, stream_id, css_pipe_id, buf_type);
937 	if (!pipe) {
938 		dev_err(isp->dev, "error getting atomisp pipe\n");
939 		return;
940 	}
941 
942 	switch (buf_type) {
943 	case IA_CSS_BUFFER_TYPE_3A_STATISTICS:
944 		list_for_each_entry_safe(s3a_iter, _s3a_buf_tmp,
945 					 &asd->s3a_stats_in_css, list) {
946 			if (s3a_iter->s3a_data ==
947 			    buffer.css_buffer.data.stats_3a) {
948 				list_del_init(&s3a_iter->list);
949 				list_add_tail(&s3a_iter->list,
950 					      &asd->s3a_stats_ready);
951 				s3a_buf = s3a_iter;
952 				break;
953 			}
954 		}
955 
956 		asd->s3a_bufs_in_css[css_pipe_id]--;
957 		atomisp_3a_stats_ready_event(asd, buffer.css_buffer.exp_id);
958 		if (s3a_buf)
959 			dev_dbg(isp->dev, "%s: s3a stat with exp_id %d is ready\n",
960 				__func__, s3a_buf->s3a_data->exp_id);
961 		else
962 			dev_dbg(isp->dev, "%s: s3a stat is ready with no exp_id found\n",
963 				__func__);
964 		break;
965 	case IA_CSS_BUFFER_TYPE_METADATA:
966 		if (error)
967 			break;
968 
969 		md_type = atomisp_get_metadata_type(asd, css_pipe_id);
970 		list_for_each_entry_safe(md_iter, _md_buf_tmp,
971 					 &asd->metadata_in_css[md_type], list) {
972 			if (md_iter->metadata ==
973 			    buffer.css_buffer.data.metadata) {
974 				list_del_init(&md_iter->list);
975 				list_add_tail(&md_iter->list,
976 					      &asd->metadata_ready[md_type]);
977 				md_buf = md_iter;
978 				break;
979 			}
980 		}
981 		asd->metadata_bufs_in_css[stream_id][css_pipe_id]--;
982 		atomisp_metadata_ready_event(asd, md_type);
983 		if (md_buf)
984 			dev_dbg(isp->dev, "%s: metadata with exp_id %d is ready\n",
985 				__func__, md_buf->metadata->exp_id);
986 		else
987 			dev_dbg(isp->dev, "%s: metadata is ready with no exp_id found\n",
988 				__func__);
989 		break;
990 	case IA_CSS_BUFFER_TYPE_DIS_STATISTICS:
991 		list_for_each_entry_safe(dis_iter, _dis_buf_tmp,
992 					 &asd->dis_stats_in_css, list) {
993 			if (dis_iter->dis_data ==
994 			    buffer.css_buffer.data.stats_dvs) {
995 				spin_lock_irqsave(&asd->dis_stats_lock,
996 						  irqflags);
997 				list_del_init(&dis_iter->list);
998 				list_add(&dis_iter->list, &asd->dis_stats);
999 				asd->params.dis_proj_data_valid = true;
1000 				spin_unlock_irqrestore(&asd->dis_stats_lock,
1001 						       irqflags);
1002 				dis_buf = dis_iter;
1003 				break;
1004 			}
1005 		}
1006 		asd->dis_bufs_in_css--;
1007 		if (dis_buf)
1008 			dev_dbg(isp->dev, "%s: dis stat with exp_id %d is ready\n",
1009 				__func__, dis_buf->dis_data->exp_id);
1010 		else
1011 			dev_dbg(isp->dev, "%s: dis stat is ready with no exp_id found\n",
1012 				__func__);
1013 		break;
1014 	case IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME:
1015 	case IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME:
1016 		if (IS_ISP2401)
1017 			reset_wdt_timer = true;
1018 
1019 		pipe->buffers_in_css--;
1020 		frame = buffer.css_buffer.data.frame;
1021 		if (!frame) {
1022 			WARN_ON(1);
1023 			break;
1024 		}
1025 		if (!frame->valid)
1026 			error = true;
1027 
1028 		/* FIXME:
1029 		 * YUVPP doesn't set postview exp_id correctlly in SDV mode.
1030 		 * This is a WORKAROUND to set exp_id. see HSDES-1503911606.
1031 		 */
1032 		if (IS_BYT && buf_type == IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME &&
1033 		    asd->continuous_mode->val && ATOMISP_USE_YUVPP(asd))
1034 			frame->exp_id = (asd->postview_exp_id++) %
1035 					(ATOMISP_MAX_EXP_ID + 1);
1036 
1037 		dev_dbg(isp->dev, "%s: vf frame with exp_id %d is ready\n",
1038 			__func__, frame->exp_id);
1039 		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
1040 			if (frame->flash_state
1041 			    == IA_CSS_FRAME_FLASH_STATE_PARTIAL)
1042 				dev_dbg(isp->dev, "%s thumb partially flashed\n",
1043 					__func__);
1044 			else if (frame->flash_state
1045 				 == IA_CSS_FRAME_FLASH_STATE_FULL)
1046 				dev_dbg(isp->dev, "%s thumb completely flashed\n",
1047 					__func__);
1048 			else
1049 				dev_dbg(isp->dev, "%s thumb no flash in this frame\n",
1050 					__func__);
1051 		}
1052 		vb = atomisp_css_frame_to_vbuf(pipe, frame);
1053 		WARN_ON(!vb);
1054 		if (vb)
1055 			pipe->frame_config_id[vb->i] = frame->isp_config_id;
1056 		if (css_pipe_id == IA_CSS_PIPE_ID_CAPTURE &&
1057 		    asd->pending_capture_request > 0) {
1058 			err = atomisp_css_offline_capture_configure(asd,
1059 				asd->params.offline_parm.num_captures,
1060 				asd->params.offline_parm.skip_frames,
1061 				asd->params.offline_parm.offset);
1062 
1063 			asd->pending_capture_request--;
1064 
1065 			dev_dbg(isp->dev, "Trigger capture again for new buffer. err=%d\n",
1066 				err);
1067 		}
1068 		break;
1069 	case IA_CSS_BUFFER_TYPE_OUTPUT_FRAME:
1070 	case IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME:
1071 		if (IS_ISP2401)
1072 			reset_wdt_timer = true;
1073 
1074 		pipe->buffers_in_css--;
1075 		frame = buffer.css_buffer.data.frame;
1076 		if (!frame) {
1077 			WARN_ON(1);
1078 			break;
1079 		}
1080 
1081 		if (!frame->valid)
1082 			error = true;
1083 
1084 		/* FIXME:
1085 		 * YUVPP doesn't set preview exp_id correctlly in ZSL mode.
1086 		 * This is a WORKAROUND to set exp_id. see HSDES-1503911606.
1087 		 */
1088 		if (IS_BYT && buf_type == IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME &&
1089 		    asd->continuous_mode->val && ATOMISP_USE_YUVPP(asd))
1090 			frame->exp_id = (asd->preview_exp_id++) %
1091 					(ATOMISP_MAX_EXP_ID + 1);
1092 
1093 		dev_dbg(isp->dev, "%s: main frame with exp_id %d is ready\n",
1094 			__func__, frame->exp_id);
1095 		vb = atomisp_css_frame_to_vbuf(pipe, frame);
1096 		if (!vb) {
1097 			WARN_ON(1);
1098 			break;
1099 		}
1100 
1101 		/* free the parameters */
1102 		if (pipe->frame_params[vb->i]) {
1103 			if (asd->params.dvs_6axis ==
1104 			    pipe->frame_params[vb->i]->params.dvs_6axis)
1105 				asd->params.dvs_6axis = NULL;
1106 			atomisp_free_css_parameters(
1107 			    &pipe->frame_params[vb->i]->params);
1108 			kvfree(pipe->frame_params[vb->i]);
1109 			pipe->frame_params[vb->i] = NULL;
1110 		}
1111 
1112 		pipe->frame_config_id[vb->i] = frame->isp_config_id;
1113 		ctrl.id = V4L2_CID_FLASH_MODE;
1114 		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
1115 			if (frame->flash_state
1116 			    == IA_CSS_FRAME_FLASH_STATE_PARTIAL) {
1117 				asd->frame_status[vb->i] =
1118 				    ATOMISP_FRAME_STATUS_FLASH_PARTIAL;
1119 				dev_dbg(isp->dev, "%s partially flashed\n",
1120 					__func__);
1121 			} else if (frame->flash_state
1122 				   == IA_CSS_FRAME_FLASH_STATE_FULL) {
1123 				asd->frame_status[vb->i] =
1124 				    ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
1125 				asd->params.num_flash_frames--;
1126 				dev_dbg(isp->dev, "%s completely flashed\n",
1127 					__func__);
1128 			} else {
1129 				asd->frame_status[vb->i] =
1130 				    ATOMISP_FRAME_STATUS_OK;
1131 				dev_dbg(isp->dev,
1132 					"%s no flash in this frame\n",
1133 					__func__);
1134 			}
1135 
1136 			/* Check if flashing sequence is done */
1137 			if (asd->frame_status[vb->i] ==
1138 			    ATOMISP_FRAME_STATUS_FLASH_EXPOSED)
1139 				asd->params.flash_state = ATOMISP_FLASH_DONE;
1140 		} else if (isp->flash) {
1141 			if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl) ==
1142 			    0 && ctrl.value == ATOMISP_FLASH_MODE_TORCH) {
1143 				ctrl.id = V4L2_CID_FLASH_TORCH_INTENSITY;
1144 				if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl)
1145 				    == 0 && ctrl.value > 0) {
1146 					asd->frame_status[vb->i] =
1147 					    ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
1148 				} else {
1149 					asd->frame_status[vb->i] =
1150 					    ATOMISP_FRAME_STATUS_OK;
1151 				}
1152 			} else {
1153 				asd->frame_status[vb->i] =
1154 				    ATOMISP_FRAME_STATUS_OK;
1155 			}
1156 		} else {
1157 			asd->frame_status[vb->i] = ATOMISP_FRAME_STATUS_OK;
1158 		}
1159 
1160 		asd->params.last_frame_status = asd->frame_status[vb->i];
1161 
1162 		if (asd->continuous_mode->val) {
1163 			if (css_pipe_id == IA_CSS_PIPE_ID_PREVIEW ||
1164 			    css_pipe_id == IA_CSS_PIPE_ID_VIDEO) {
1165 				asd->latest_preview_exp_id = frame->exp_id;
1166 			} else if (css_pipe_id ==
1167 				   IA_CSS_PIPE_ID_CAPTURE) {
1168 				if (asd->run_mode->val ==
1169 				    ATOMISP_RUN_MODE_VIDEO)
1170 					dev_dbg(isp->dev, "SDV capture raw buffer id: %u\n",
1171 						frame->exp_id);
1172 				else
1173 					dev_dbg(isp->dev, "ZSL capture raw buffer id: %u\n",
1174 						frame->exp_id);
1175 			}
1176 		}
1177 		/*
1178 		 * Only after enabled the raw buffer lock
1179 		 * and in continuous mode.
1180 		 * in preview/video pipe, each buffer will
1181 		 * be locked automatically, so record it here.
1182 		 */
1183 		if (((css_pipe_id == IA_CSS_PIPE_ID_PREVIEW) ||
1184 		     (css_pipe_id == IA_CSS_PIPE_ID_VIDEO)) &&
1185 		    asd->enable_raw_buffer_lock->val &&
1186 		    asd->continuous_mode->val) {
1187 			atomisp_set_raw_buffer_bitmap(asd, frame->exp_id);
1188 			WARN_ON(frame->exp_id > ATOMISP_MAX_EXP_ID);
1189 		}
1190 
1191 		if (asd->params.css_update_params_needed) {
1192 			atomisp_apply_css_parameters(asd,
1193 						     &asd->params.css_param);
1194 			if (asd->params.css_param.update_flag.dz_config)
1195 				asd->params.config.dz_config = &asd->params.css_param.dz_config;
1196 			/* New global dvs 6axis config should be blocked
1197 			 * here if there's a buffer with per-frame parameters
1198 			 * pending in CSS frame buffer queue.
1199 			 * This is to aviod zooming vibration since global
1200 			 * parameters take effect immediately while
1201 			 * per-frame parameters are taken after previous
1202 			 * buffers in CSS got processed.
1203 			 */
1204 			if (asd->params.dvs_6axis)
1205 				atomisp_css_set_dvs_6axis(asd,
1206 							  asd->params.dvs_6axis);
1207 			else
1208 				asd->params.css_update_params_needed = false;
1209 			/* The update flag should not be cleaned here
1210 			 * since it is still going to be used to make up
1211 			 * following per-frame parameters.
1212 			 * This will introduce more copy work since each
1213 			 * time when updating global parameters, the whole
1214 			 * parameter set are applied.
1215 			 * FIXME: A new set of parameter copy functions can
1216 			 * be added to make up per-frame parameters based on
1217 			 * solid structures stored in asd->params.css_param
1218 			 * instead of using shadow pointers in update flag.
1219 			 */
1220 			atomisp_css_update_isp_params(asd);
1221 		}
1222 		break;
1223 	default:
1224 		break;
1225 	}
1226 	if (vb) {
1227 		vb->ts = ktime_get_ns();
1228 		vb->field_count = atomic_read(&asd->sequence) << 1;
1229 		/*mark videobuffer done for dequeue*/
1230 		spin_lock_irqsave(&pipe->irq_lock, irqflags);
1231 		vb->state = !error ? VIDEOBUF_DONE : VIDEOBUF_ERROR;
1232 		spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
1233 
1234 		/*
1235 		 * Frame capture done, wake up any process block on
1236 		 * current active buffer
1237 		 * possibly hold by videobuf_dqbuf()
1238 		 */
1239 		wake_up(&vb->done);
1240 	}
1241 	if (IS_ISP2401)
1242 		atomic_set(&pipe->wdt_count, 0);
1243 
1244 	/*
1245 	 * Requeue should only be done for 3a and dis buffers.
1246 	 * Queue/dequeue order will change if driver recycles image buffers.
1247 	 */
1248 	if (requeue) {
1249 		err = atomisp_css_queue_buffer(asd,
1250 					       stream_id, css_pipe_id,
1251 					       buf_type, &buffer);
1252 		if (err)
1253 			dev_err(isp->dev, "%s, q to css fails: %d\n",
1254 				__func__, err);
1255 		return;
1256 	}
1257 	if (!error && q_buffers)
1258 		atomisp_qbuffers_to_css(asd);
1259 
1260 	if (IS_ISP2401) {
1261 		/* If there are no buffers queued then
1262 		* delete wdt timer. */
1263 		if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
1264 			return;
1265 		if (!atomisp_buffers_queued_pipe(pipe))
1266 			atomisp_wdt_stop_pipe(pipe, false);
1267 		else if (reset_wdt_timer)
1268 			/* SOF irq should not reset wdt timer. */
1269 			atomisp_wdt_refresh_pipe(pipe,
1270 						ATOMISP_WDT_KEEP_CURRENT_DELAY);
1271 	}
1272 }
1273 
1274 void atomisp_delayed_init_work(struct work_struct *work)
1275 {
1276 	struct atomisp_sub_device *asd = container_of(work,
1277 					 struct atomisp_sub_device,
1278 					 delayed_init_work);
1279 	/*
1280 	 * to SOC camera, use yuvpp pipe and no support continuous mode.
1281 	 */
1282 	if (!ATOMISP_USE_YUVPP(asd)) {
1283 		struct v4l2_event event = {0};
1284 		struct ia_css_stream *stream;
1285 
1286 		stream = asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream;
1287 
1288 
1289 		if (ia_css_alloc_continuous_frame_remain(stream))
1290 			return;
1291 
1292 		ia_css_update_continuous_frames(stream);
1293 
1294 		event.type = V4L2_EVENT_ATOMISP_RAW_BUFFERS_ALLOC_DONE;
1295 		v4l2_event_queue(asd->subdev.devnode, &event);
1296 	}
1297 
1298 	/* signal streamon after delayed init is done */
1299 	asd->delayed_init = ATOMISP_DELAYED_INIT_DONE;
1300 	complete(&asd->init_done);
1301 }
1302 
1303 static void __atomisp_css_recover(struct atomisp_device *isp, bool isp_timeout)
1304 {
1305 	struct pci_dev *pdev = to_pci_dev(isp->dev);
1306 	enum ia_css_pipe_id css_pipe_id;
1307 	bool stream_restart[MAX_STREAM_NUM] = {0};
1308 	bool depth_mode = false;
1309 	int i, ret, depth_cnt = 0;
1310 
1311 	if (!isp->sw_contex.file_input)
1312 		atomisp_css_irq_enable(isp,
1313 				       IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF, false);
1314 
1315 	BUG_ON(isp->num_of_streams > MAX_STREAM_NUM);
1316 
1317 	for (i = 0; i < isp->num_of_streams; i++) {
1318 		struct atomisp_sub_device *asd = &isp->asd[i];
1319 
1320 		if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED &&
1321 		    !asd->stream_prepared)
1322 			continue;
1323 
1324 		depth_cnt++;
1325 
1326 		if (asd->delayed_init == ATOMISP_DELAYED_INIT_QUEUED)
1327 			cancel_work_sync(&asd->delayed_init_work);
1328 
1329 		complete(&asd->init_done);
1330 		asd->delayed_init = ATOMISP_DELAYED_INIT_NOT_QUEUED;
1331 
1332 		stream_restart[asd->index] = true;
1333 
1334 		asd->streaming = ATOMISP_DEVICE_STREAMING_STOPPING;
1335 
1336 		/* stream off sensor */
1337 		ret = v4l2_subdev_call(
1338 			  isp->inputs[asd->input_curr].
1339 			  camera, video, s_stream, 0);
1340 		if (ret)
1341 			dev_warn(isp->dev,
1342 				 "can't stop streaming on sensor!\n");
1343 
1344 		atomisp_clear_css_buffer_counters(asd);
1345 
1346 		css_pipe_id = atomisp_get_css_pipe_id(asd);
1347 		atomisp_css_stop(asd, css_pipe_id, true);
1348 
1349 		asd->streaming = ATOMISP_DEVICE_STREAMING_DISABLED;
1350 
1351 		asd->preview_exp_id = 1;
1352 		asd->postview_exp_id = 1;
1353 		/* notify HAL the CSS reset */
1354 		dev_dbg(isp->dev,
1355 			"send reset event to %s\n", asd->subdev.devnode->name);
1356 		atomisp_reset_event(asd);
1357 	}
1358 
1359 	/* clear irq */
1360 	disable_isp_irq(hrt_isp_css_irq_sp);
1361 	clear_isp_irq(hrt_isp_css_irq_sp);
1362 
1363 	/* Set the SRSE to 3 before resetting */
1364 	pci_write_config_dword(pdev, PCI_I_CONTROL,
1365 			       isp->saved_regs.i_control | MRFLD_PCI_I_CONTROL_SRSE_RESET_MASK);
1366 
1367 	/* reset ISP and restore its state */
1368 	isp->isp_timeout = true;
1369 	atomisp_reset(isp);
1370 	isp->isp_timeout = false;
1371 
1372 	if (!isp_timeout) {
1373 		for (i = 0; i < isp->num_of_streams; i++) {
1374 			if (isp->asd[i].depth_mode->val)
1375 				return;
1376 		}
1377 	}
1378 
1379 	for (i = 0; i < isp->num_of_streams; i++) {
1380 		struct atomisp_sub_device *asd = &isp->asd[i];
1381 
1382 		if (!stream_restart[i])
1383 			continue;
1384 
1385 		if (isp->inputs[asd->input_curr].type != FILE_INPUT)
1386 			atomisp_css_input_set_mode(asd,
1387 						   IA_CSS_INPUT_MODE_BUFFERED_SENSOR);
1388 
1389 		css_pipe_id = atomisp_get_css_pipe_id(asd);
1390 		if (atomisp_css_start(asd, css_pipe_id, true))
1391 			dev_warn(isp->dev,
1392 				 "start SP failed, so do not set streaming to be enable!\n");
1393 		else
1394 			asd->streaming = ATOMISP_DEVICE_STREAMING_ENABLED;
1395 
1396 		atomisp_csi2_configure(asd);
1397 	}
1398 
1399 	if (!isp->sw_contex.file_input) {
1400 		atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF,
1401 				       atomisp_css_valid_sof(isp));
1402 
1403 		if (atomisp_freq_scaling(isp, ATOMISP_DFS_MODE_AUTO, true) < 0)
1404 			dev_dbg(isp->dev, "DFS auto failed while recovering!\n");
1405 	} else {
1406 		if (atomisp_freq_scaling(isp, ATOMISP_DFS_MODE_MAX, true) < 0)
1407 			dev_dbg(isp->dev, "DFS max failed while recovering!\n");
1408 	}
1409 
1410 	for (i = 0; i < isp->num_of_streams; i++) {
1411 		struct atomisp_sub_device *asd;
1412 
1413 		asd = &isp->asd[i];
1414 
1415 		if (!stream_restart[i])
1416 			continue;
1417 
1418 		if (asd->continuous_mode->val &&
1419 		    asd->delayed_init == ATOMISP_DELAYED_INIT_NOT_QUEUED) {
1420 			reinit_completion(&asd->init_done);
1421 			asd->delayed_init = ATOMISP_DELAYED_INIT_QUEUED;
1422 			queue_work(asd->delayed_init_workq,
1423 				   &asd->delayed_init_work);
1424 		}
1425 		/*
1426 		 * dequeueing buffers is not needed. CSS will recycle
1427 		 * buffers that it has.
1428 		 */
1429 		atomisp_flush_bufs_and_wakeup(asd);
1430 
1431 		/* Requeue unprocessed per-frame parameters. */
1432 		atomisp_recover_params_queue(&asd->video_out_capture);
1433 		atomisp_recover_params_queue(&asd->video_out_preview);
1434 		atomisp_recover_params_queue(&asd->video_out_video_capture);
1435 
1436 		if ((asd->depth_mode->val) &&
1437 		    (depth_cnt == ATOMISP_DEPTH_SENSOR_STREAMON_COUNT)) {
1438 			depth_mode = true;
1439 			continue;
1440 		}
1441 
1442 		ret = v4l2_subdev_call(
1443 			  isp->inputs[asd->input_curr].camera, video,
1444 			  s_stream, 1);
1445 		if (ret)
1446 			dev_warn(isp->dev,
1447 				 "can't start streaming on sensor!\n");
1448 	}
1449 
1450 	if (depth_mode) {
1451 		if (atomisp_stream_on_master_slave_sensor(isp, true))
1452 			dev_warn(isp->dev,
1453 				 "master slave sensor stream on failed!\n");
1454 	}
1455 }
1456 
1457 void atomisp_wdt_work(struct work_struct *work)
1458 {
1459 	struct atomisp_device *isp = container_of(work, struct atomisp_device,
1460 				     wdt_work);
1461 	int i;
1462 	unsigned int pipe_wdt_cnt[MAX_STREAM_NUM][4] = { {0} };
1463 	bool css_recover = true;
1464 
1465 	rt_mutex_lock(&isp->mutex);
1466 	if (!atomisp_streaming_count(isp)) {
1467 		atomic_set(&isp->wdt_work_queued, 0);
1468 		rt_mutex_unlock(&isp->mutex);
1469 		return;
1470 	}
1471 
1472 	if (!IS_ISP2401) {
1473 		dev_err(isp->dev, "timeout %d of %d\n",
1474 			atomic_read(&isp->wdt_count) + 1,
1475 			ATOMISP_ISP_MAX_TIMEOUT_COUNT);
1476 	} else {
1477 		for (i = 0; i < isp->num_of_streams; i++) {
1478 			struct atomisp_sub_device *asd = &isp->asd[i];
1479 
1480 			pipe_wdt_cnt[i][0] +=
1481 			    atomic_read(&asd->video_out_capture.wdt_count);
1482 			pipe_wdt_cnt[i][1] +=
1483 			    atomic_read(&asd->video_out_vf.wdt_count);
1484 			pipe_wdt_cnt[i][2] +=
1485 			    atomic_read(&asd->video_out_preview.wdt_count);
1486 			pipe_wdt_cnt[i][3] +=
1487 			    atomic_read(&asd->video_out_video_capture.wdt_count);
1488 			css_recover =
1489 			    (pipe_wdt_cnt[i][0] <= ATOMISP_ISP_MAX_TIMEOUT_COUNT &&
1490 			    pipe_wdt_cnt[i][1] <= ATOMISP_ISP_MAX_TIMEOUT_COUNT &&
1491 			    pipe_wdt_cnt[i][2] <= ATOMISP_ISP_MAX_TIMEOUT_COUNT &&
1492 			    pipe_wdt_cnt[i][3] <= ATOMISP_ISP_MAX_TIMEOUT_COUNT)
1493 			    ? true : false;
1494 			dev_err(isp->dev,
1495 				"pipe on asd%d timeout cnt: (%d, %d, %d, %d) of %d, recover = %d\n",
1496 				asd->index, pipe_wdt_cnt[i][0], pipe_wdt_cnt[i][1],
1497 				pipe_wdt_cnt[i][2], pipe_wdt_cnt[i][3],
1498 				ATOMISP_ISP_MAX_TIMEOUT_COUNT, css_recover);
1499 		}
1500 	}
1501 
1502 	if (css_recover) {
1503 		ia_css_debug_dump_sp_sw_debug_info();
1504 		ia_css_debug_dump_debug_info(__func__);
1505 		for (i = 0; i < isp->num_of_streams; i++) {
1506 			struct atomisp_sub_device *asd = &isp->asd[i];
1507 
1508 			if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
1509 				continue;
1510 			dev_err(isp->dev, "%s, vdev %s buffers in css: %d\n",
1511 				__func__,
1512 				asd->video_out_capture.vdev.name,
1513 				asd->video_out_capture.
1514 				buffers_in_css);
1515 			dev_err(isp->dev,
1516 				"%s, vdev %s buffers in css: %d\n",
1517 				__func__,
1518 				asd->video_out_vf.vdev.name,
1519 				asd->video_out_vf.
1520 				buffers_in_css);
1521 			dev_err(isp->dev,
1522 				"%s, vdev %s buffers in css: %d\n",
1523 				__func__,
1524 				asd->video_out_preview.vdev.name,
1525 				asd->video_out_preview.
1526 				buffers_in_css);
1527 			dev_err(isp->dev,
1528 				"%s, vdev %s buffers in css: %d\n",
1529 				__func__,
1530 				asd->video_out_video_capture.vdev.name,
1531 				asd->video_out_video_capture.
1532 				buffers_in_css);
1533 			dev_err(isp->dev,
1534 				"%s, s3a buffers in css preview pipe:%d\n",
1535 				__func__,
1536 				asd->s3a_bufs_in_css[IA_CSS_PIPE_ID_PREVIEW]);
1537 			dev_err(isp->dev,
1538 				"%s, s3a buffers in css capture pipe:%d\n",
1539 				__func__,
1540 				asd->s3a_bufs_in_css[IA_CSS_PIPE_ID_CAPTURE]);
1541 			dev_err(isp->dev,
1542 				"%s, s3a buffers in css video pipe:%d\n",
1543 				__func__,
1544 				asd->s3a_bufs_in_css[IA_CSS_PIPE_ID_VIDEO]);
1545 			dev_err(isp->dev,
1546 				"%s, dis buffers in css: %d\n",
1547 				__func__, asd->dis_bufs_in_css);
1548 			dev_err(isp->dev,
1549 				"%s, metadata buffers in css preview pipe:%d\n",
1550 				__func__,
1551 				asd->metadata_bufs_in_css
1552 				[ATOMISP_INPUT_STREAM_GENERAL]
1553 				[IA_CSS_PIPE_ID_PREVIEW]);
1554 			dev_err(isp->dev,
1555 				"%s, metadata buffers in css capture pipe:%d\n",
1556 				__func__,
1557 				asd->metadata_bufs_in_css
1558 				[ATOMISP_INPUT_STREAM_GENERAL]
1559 				[IA_CSS_PIPE_ID_CAPTURE]);
1560 			dev_err(isp->dev,
1561 				"%s, metadata buffers in css video pipe:%d\n",
1562 				__func__,
1563 				asd->metadata_bufs_in_css
1564 				[ATOMISP_INPUT_STREAM_GENERAL]
1565 				[IA_CSS_PIPE_ID_VIDEO]);
1566 			if (asd->enable_raw_buffer_lock->val) {
1567 				unsigned int j;
1568 
1569 				dev_err(isp->dev, "%s, raw_buffer_locked_count %d\n",
1570 					__func__, asd->raw_buffer_locked_count);
1571 				for (j = 0; j <= ATOMISP_MAX_EXP_ID / 32; j++)
1572 					dev_err(isp->dev, "%s, raw_buffer_bitmap[%d]: 0x%x\n",
1573 						__func__, j,
1574 						asd->raw_buffer_bitmap[j]);
1575 			}
1576 		}
1577 
1578 		/*sh_css_dump_sp_state();*/
1579 		/*sh_css_dump_isp_state();*/
1580 	} else {
1581 		for (i = 0; i < isp->num_of_streams; i++) {
1582 			struct atomisp_sub_device *asd = &isp->asd[i];
1583 
1584 			if (asd->streaming ==
1585 			    ATOMISP_DEVICE_STREAMING_ENABLED) {
1586 				atomisp_clear_css_buffer_counters(asd);
1587 				atomisp_flush_bufs_and_wakeup(asd);
1588 				complete(&asd->init_done);
1589 			}
1590 			if (IS_ISP2401)
1591 				atomisp_wdt_stop(asd, false);
1592 		}
1593 
1594 		if (!IS_ISP2401) {
1595 			atomic_set(&isp->wdt_count, 0);
1596 		} else {
1597 			isp->isp_fatal_error = true;
1598 			atomic_set(&isp->wdt_work_queued, 0);
1599 
1600 			rt_mutex_unlock(&isp->mutex);
1601 			return;
1602 		}
1603 	}
1604 
1605 	__atomisp_css_recover(isp, true);
1606 	if (IS_ISP2401) {
1607 		for (i = 0; i < isp->num_of_streams; i++) {
1608 			struct atomisp_sub_device *asd = &isp->asd[i];
1609 
1610 			if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
1611 				continue;
1612 
1613 			atomisp_wdt_refresh(asd,
1614 					    isp->sw_contex.file_input ?
1615 					    ATOMISP_ISP_FILE_TIMEOUT_DURATION :
1616 					    ATOMISP_ISP_TIMEOUT_DURATION);
1617 		}
1618 	}
1619 
1620 	dev_err(isp->dev, "timeout recovery handling done\n");
1621 	atomic_set(&isp->wdt_work_queued, 0);
1622 
1623 	rt_mutex_unlock(&isp->mutex);
1624 }
1625 
1626 void atomisp_css_flush(struct atomisp_device *isp)
1627 {
1628 	int i;
1629 
1630 	if (!atomisp_streaming_count(isp))
1631 		return;
1632 
1633 	/* Disable wdt */
1634 	for (i = 0; i < isp->num_of_streams; i++) {
1635 		struct atomisp_sub_device *asd = &isp->asd[i];
1636 
1637 		atomisp_wdt_stop(asd, true);
1638 	}
1639 
1640 	/* Start recover */
1641 	__atomisp_css_recover(isp, false);
1642 	/* Restore wdt */
1643 	for (i = 0; i < isp->num_of_streams; i++) {
1644 		struct atomisp_sub_device *asd = &isp->asd[i];
1645 
1646 		if (asd->streaming !=
1647 		    ATOMISP_DEVICE_STREAMING_ENABLED)
1648 			continue;
1649 
1650 		atomisp_wdt_refresh(asd,
1651 				    isp->sw_contex.file_input ?
1652 				    ATOMISP_ISP_FILE_TIMEOUT_DURATION :
1653 				    ATOMISP_ISP_TIMEOUT_DURATION);
1654 	}
1655 	dev_dbg(isp->dev, "atomisp css flush done\n");
1656 }
1657 
1658 void atomisp_wdt(struct timer_list *t)
1659 {
1660 	struct atomisp_sub_device *asd;
1661 	struct atomisp_device *isp;
1662 
1663 	if (!IS_ISP2401) {
1664 		asd = from_timer(asd, t, wdt);
1665 		isp = asd->isp;
1666 	} else {
1667 		struct atomisp_video_pipe *pipe = from_timer(pipe, t, wdt);
1668 
1669 		asd = pipe->asd;
1670 		isp = asd->isp;
1671 
1672 		atomic_inc(&pipe->wdt_count);
1673 		dev_warn(isp->dev,
1674 			"[WARNING]asd %d pipe %s ISP timeout %d!\n",
1675 			asd->index, pipe->vdev.name,
1676 			atomic_read(&pipe->wdt_count));
1677 	}
1678 
1679 	if (atomic_read(&isp->wdt_work_queued)) {
1680 		dev_dbg(isp->dev, "ISP watchdog was put into workqueue\n");
1681 		return;
1682 	}
1683 	atomic_set(&isp->wdt_work_queued, 1);
1684 	queue_work(isp->wdt_work_queue, &isp->wdt_work);
1685 }
1686 
1687 /* ISP2400 */
1688 void atomisp_wdt_start(struct atomisp_sub_device *asd)
1689 {
1690 	atomisp_wdt_refresh(asd, ATOMISP_ISP_TIMEOUT_DURATION);
1691 }
1692 
1693 /* ISP2401 */
1694 void atomisp_wdt_refresh_pipe(struct atomisp_video_pipe *pipe,
1695 			      unsigned int delay)
1696 {
1697 	unsigned long next;
1698 
1699 	if (!pipe->asd) {
1700 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
1701 			__func__, pipe->vdev.name);
1702 		return;
1703 	}
1704 
1705 	if (delay != ATOMISP_WDT_KEEP_CURRENT_DELAY)
1706 		pipe->wdt_duration = delay;
1707 
1708 	next = jiffies + pipe->wdt_duration;
1709 
1710 	/* Override next if it has been pushed beyon the "next" time */
1711 	if (atomisp_is_wdt_running(pipe) && time_after(pipe->wdt_expires, next))
1712 		next = pipe->wdt_expires;
1713 
1714 	pipe->wdt_expires = next;
1715 
1716 	if (atomisp_is_wdt_running(pipe))
1717 		dev_dbg(pipe->asd->isp->dev, "WDT will hit after %d ms (%s)\n",
1718 			((int)(next - jiffies) * 1000 / HZ), pipe->vdev.name);
1719 	else
1720 		dev_dbg(pipe->asd->isp->dev, "WDT starts with %d ms period (%s)\n",
1721 			((int)(next - jiffies) * 1000 / HZ), pipe->vdev.name);
1722 
1723 	mod_timer(&pipe->wdt, next);
1724 }
1725 
1726 void atomisp_wdt_refresh(struct atomisp_sub_device *asd, unsigned int delay)
1727 {
1728 	if (!IS_ISP2401) {
1729 		unsigned long next;
1730 
1731 		if (delay != ATOMISP_WDT_KEEP_CURRENT_DELAY)
1732 			asd->wdt_duration = delay;
1733 
1734 		next = jiffies + asd->wdt_duration;
1735 
1736 		/* Override next if it has been pushed beyon the "next" time */
1737 		if (atomisp_is_wdt_running(asd) && time_after(asd->wdt_expires, next))
1738 			next = asd->wdt_expires;
1739 
1740 		asd->wdt_expires = next;
1741 
1742 		if (atomisp_is_wdt_running(asd))
1743 			dev_dbg(asd->isp->dev, "WDT will hit after %d ms\n",
1744 				((int)(next - jiffies) * 1000 / HZ));
1745 		else
1746 			dev_dbg(asd->isp->dev, "WDT starts with %d ms period\n",
1747 				((int)(next - jiffies) * 1000 / HZ));
1748 
1749 		mod_timer(&asd->wdt, next);
1750 		atomic_set(&asd->isp->wdt_count, 0);
1751 	} else {
1752 		dev_dbg(asd->isp->dev, "WDT refresh all:\n");
1753 		if (atomisp_is_wdt_running(&asd->video_out_capture))
1754 			atomisp_wdt_refresh_pipe(&asd->video_out_capture, delay);
1755 		if (atomisp_is_wdt_running(&asd->video_out_preview))
1756 			atomisp_wdt_refresh_pipe(&asd->video_out_preview, delay);
1757 		if (atomisp_is_wdt_running(&asd->video_out_vf))
1758 			atomisp_wdt_refresh_pipe(&asd->video_out_vf, delay);
1759 		if (atomisp_is_wdt_running(&asd->video_out_video_capture))
1760 			atomisp_wdt_refresh_pipe(&asd->video_out_video_capture, delay);
1761 	}
1762 }
1763 
1764 /* ISP2401 */
1765 void atomisp_wdt_stop_pipe(struct atomisp_video_pipe *pipe, bool sync)
1766 {
1767 	if (!pipe->asd) {
1768 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
1769 			__func__, pipe->vdev.name);
1770 		return;
1771 	}
1772 
1773 	if (!atomisp_is_wdt_running(pipe))
1774 		return;
1775 
1776 	dev_dbg(pipe->asd->isp->dev,
1777 		"WDT stop asd %d (%s)\n", pipe->asd->index, pipe->vdev.name);
1778 
1779 	if (sync) {
1780 		del_timer_sync(&pipe->wdt);
1781 		cancel_work_sync(&pipe->asd->isp->wdt_work);
1782 	} else {
1783 		del_timer(&pipe->wdt);
1784 	}
1785 }
1786 
1787 /* ISP 2401 */
1788 void atomisp_wdt_start_pipe(struct atomisp_video_pipe *pipe)
1789 {
1790 	atomisp_wdt_refresh_pipe(pipe, ATOMISP_ISP_TIMEOUT_DURATION);
1791 }
1792 
1793 void atomisp_wdt_stop(struct atomisp_sub_device *asd, bool sync)
1794 {
1795 	dev_dbg(asd->isp->dev, "WDT stop:\n");
1796 
1797 	if (!IS_ISP2401) {
1798 		if (sync) {
1799 			del_timer_sync(&asd->wdt);
1800 			cancel_work_sync(&asd->isp->wdt_work);
1801 		} else {
1802 			del_timer(&asd->wdt);
1803 		}
1804 	} else {
1805 		atomisp_wdt_stop_pipe(&asd->video_out_capture, sync);
1806 		atomisp_wdt_stop_pipe(&asd->video_out_preview, sync);
1807 		atomisp_wdt_stop_pipe(&asd->video_out_vf, sync);
1808 		atomisp_wdt_stop_pipe(&asd->video_out_video_capture, sync);
1809 	}
1810 }
1811 
1812 void atomisp_setup_flash(struct atomisp_sub_device *asd)
1813 {
1814 	struct atomisp_device *isp = asd->isp;
1815 	struct v4l2_control ctrl;
1816 
1817 	if (!isp->flash)
1818 		return;
1819 
1820 	if (asd->params.flash_state != ATOMISP_FLASH_REQUESTED &&
1821 	    asd->params.flash_state != ATOMISP_FLASH_DONE)
1822 		return;
1823 
1824 	if (asd->params.num_flash_frames) {
1825 		/* make sure the timeout is set before setting flash mode */
1826 		ctrl.id = V4L2_CID_FLASH_TIMEOUT;
1827 		ctrl.value = FLASH_TIMEOUT;
1828 
1829 		if (v4l2_s_ctrl(NULL, isp->flash->ctrl_handler, &ctrl)) {
1830 			dev_err(isp->dev, "flash timeout configure failed\n");
1831 			return;
1832 		}
1833 
1834 		ia_css_stream_request_flash(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream);
1835 
1836 		asd->params.flash_state = ATOMISP_FLASH_ONGOING;
1837 	} else {
1838 		asd->params.flash_state = ATOMISP_FLASH_IDLE;
1839 	}
1840 }
1841 
1842 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
1843 {
1844 	struct atomisp_device *isp = isp_ptr;
1845 	unsigned long flags;
1846 	bool frame_done_found[MAX_STREAM_NUM] = {0};
1847 	bool css_pipe_done[MAX_STREAM_NUM] = {0};
1848 	unsigned int i;
1849 	struct atomisp_sub_device *asd;
1850 
1851 	dev_dbg(isp->dev, ">%s\n", __func__);
1852 
1853 	spin_lock_irqsave(&isp->lock, flags);
1854 
1855 	if (!atomisp_streaming_count(isp)) {
1856 		spin_unlock_irqrestore(&isp->lock, flags);
1857 		return IRQ_HANDLED;
1858 	}
1859 
1860 	spin_unlock_irqrestore(&isp->lock, flags);
1861 
1862 	/*
1863 	 * The standard CSS2.0 API tells the following calling sequence of
1864 	 * dequeue ready buffers:
1865 	 * while (ia_css_dequeue_psys_event(...)) {
1866 	 *	switch (event.type) {
1867 	 *	...
1868 	 *	ia_css_pipe_dequeue_buffer()
1869 	 *	}
1870 	 * }
1871 	 * That is, dequeue event and buffer are one after another.
1872 	 *
1873 	 * But the following implementation is to first deuque all the event
1874 	 * to a FIFO, then process the event in the FIFO.
1875 	 * This will not have issue in single stream mode, but it do have some
1876 	 * issue in multiple stream case. The issue is that
1877 	 * ia_css_pipe_dequeue_buffer() will not return the corrent buffer in
1878 	 * a specific pipe.
1879 	 *
1880 	 * This is due to ia_css_pipe_dequeue_buffer() does not take the
1881 	 * ia_css_pipe parameter.
1882 	 *
1883 	 * So:
1884 	 * For CSS2.0: we change the way to not dequeue all the event at one
1885 	 * time, instead, dequue one and process one, then another
1886 	 */
1887 	rt_mutex_lock(&isp->mutex);
1888 	if (atomisp_css_isr_thread(isp, frame_done_found, css_pipe_done))
1889 		goto out;
1890 
1891 	for (i = 0; i < isp->num_of_streams; i++) {
1892 		asd = &isp->asd[i];
1893 		if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
1894 			continue;
1895 		atomisp_setup_flash(asd);
1896 	}
1897 out:
1898 	rt_mutex_unlock(&isp->mutex);
1899 	for (i = 0; i < isp->num_of_streams; i++) {
1900 		asd = &isp->asd[i];
1901 		if (asd->streaming == ATOMISP_DEVICE_STREAMING_ENABLED
1902 		    && css_pipe_done[asd->index]
1903 		    && isp->sw_contex.file_input)
1904 			v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
1905 					 video, s_stream, 1);
1906 	}
1907 	dev_dbg(isp->dev, "<%s\n", __func__);
1908 
1909 	return IRQ_HANDLED;
1910 }
1911 
1912 /*
1913  * Get internal fmt according to V4L2 fmt
1914  */
1915 static enum ia_css_frame_format
1916 v4l2_fmt_to_sh_fmt(u32 fmt)
1917 {
1918 	switch (fmt) {
1919 	case V4L2_PIX_FMT_YUV420:
1920 				return IA_CSS_FRAME_FORMAT_YUV420;
1921 	case V4L2_PIX_FMT_YVU420:
1922 		return IA_CSS_FRAME_FORMAT_YV12;
1923 	case V4L2_PIX_FMT_YUV422P:
1924 		return IA_CSS_FRAME_FORMAT_YUV422;
1925 	case V4L2_PIX_FMT_YUV444:
1926 		return IA_CSS_FRAME_FORMAT_YUV444;
1927 	case V4L2_PIX_FMT_NV12:
1928 		return IA_CSS_FRAME_FORMAT_NV12;
1929 	case V4L2_PIX_FMT_NV21:
1930 		return IA_CSS_FRAME_FORMAT_NV21;
1931 	case V4L2_PIX_FMT_NV16:
1932 		return IA_CSS_FRAME_FORMAT_NV16;
1933 	case V4L2_PIX_FMT_NV61:
1934 		return IA_CSS_FRAME_FORMAT_NV61;
1935 	case V4L2_PIX_FMT_UYVY:
1936 		return IA_CSS_FRAME_FORMAT_UYVY;
1937 	case V4L2_PIX_FMT_YUYV:
1938 		return IA_CSS_FRAME_FORMAT_YUYV;
1939 	case V4L2_PIX_FMT_RGB24:
1940 		return IA_CSS_FRAME_FORMAT_PLANAR_RGB888;
1941 	case V4L2_PIX_FMT_RGB32:
1942 		return IA_CSS_FRAME_FORMAT_RGBA888;
1943 	case V4L2_PIX_FMT_RGB565:
1944 		return IA_CSS_FRAME_FORMAT_RGB565;
1945 #if 0
1946 	case V4L2_PIX_FMT_JPEG:
1947 	case V4L2_PIX_FMT_CUSTOM_M10MO_RAW:
1948 		return IA_CSS_FRAME_FORMAT_BINARY_8;
1949 #endif
1950 	case V4L2_PIX_FMT_SBGGR16:
1951 	case V4L2_PIX_FMT_SBGGR10:
1952 	case V4L2_PIX_FMT_SGBRG10:
1953 	case V4L2_PIX_FMT_SGRBG10:
1954 	case V4L2_PIX_FMT_SRGGB10:
1955 	case V4L2_PIX_FMT_SBGGR12:
1956 	case V4L2_PIX_FMT_SGBRG12:
1957 	case V4L2_PIX_FMT_SGRBG12:
1958 	case V4L2_PIX_FMT_SRGGB12:
1959 	case V4L2_PIX_FMT_SBGGR8:
1960 	case V4L2_PIX_FMT_SGBRG8:
1961 	case V4L2_PIX_FMT_SGRBG8:
1962 	case V4L2_PIX_FMT_SRGGB8:
1963 		return IA_CSS_FRAME_FORMAT_RAW;
1964 	default:
1965 		return -EINVAL;
1966 	}
1967 }
1968 
1969 /*
1970  * raw format match between SH format and V4L2 format
1971  */
1972 static int raw_output_format_match_input(u32 input, u32 output)
1973 {
1974 	if ((input == ATOMISP_INPUT_FORMAT_RAW_12) &&
1975 	    ((output == V4L2_PIX_FMT_SRGGB12) ||
1976 	     (output == V4L2_PIX_FMT_SGRBG12) ||
1977 	     (output == V4L2_PIX_FMT_SBGGR12) ||
1978 	     (output == V4L2_PIX_FMT_SGBRG12)))
1979 		return 0;
1980 
1981 	if ((input == ATOMISP_INPUT_FORMAT_RAW_10) &&
1982 	    ((output == V4L2_PIX_FMT_SRGGB10) ||
1983 	     (output == V4L2_PIX_FMT_SGRBG10) ||
1984 	     (output == V4L2_PIX_FMT_SBGGR10) ||
1985 	     (output == V4L2_PIX_FMT_SGBRG10)))
1986 		return 0;
1987 
1988 	if ((input == ATOMISP_INPUT_FORMAT_RAW_8) &&
1989 	    ((output == V4L2_PIX_FMT_SRGGB8) ||
1990 	     (output == V4L2_PIX_FMT_SGRBG8) ||
1991 	     (output == V4L2_PIX_FMT_SBGGR8) ||
1992 	     (output == V4L2_PIX_FMT_SGBRG8)))
1993 		return 0;
1994 
1995 	if ((input == ATOMISP_INPUT_FORMAT_RAW_16) && (output == V4L2_PIX_FMT_SBGGR16))
1996 		return 0;
1997 
1998 	return -EINVAL;
1999 }
2000 
2001 u32 atomisp_get_pixel_depth(u32 pixelformat)
2002 {
2003 	switch (pixelformat) {
2004 	case V4L2_PIX_FMT_YUV420:
2005 	case V4L2_PIX_FMT_NV12:
2006 	case V4L2_PIX_FMT_NV21:
2007 	case V4L2_PIX_FMT_YVU420:
2008 		return 12;
2009 	case V4L2_PIX_FMT_YUV422P:
2010 	case V4L2_PIX_FMT_YUYV:
2011 	case V4L2_PIX_FMT_UYVY:
2012 	case V4L2_PIX_FMT_NV16:
2013 	case V4L2_PIX_FMT_NV61:
2014 	case V4L2_PIX_FMT_RGB565:
2015 	case V4L2_PIX_FMT_SBGGR16:
2016 	case V4L2_PIX_FMT_SBGGR12:
2017 	case V4L2_PIX_FMT_SGBRG12:
2018 	case V4L2_PIX_FMT_SGRBG12:
2019 	case V4L2_PIX_FMT_SRGGB12:
2020 	case V4L2_PIX_FMT_SBGGR10:
2021 	case V4L2_PIX_FMT_SGBRG10:
2022 	case V4L2_PIX_FMT_SGRBG10:
2023 	case V4L2_PIX_FMT_SRGGB10:
2024 		return 16;
2025 	case V4L2_PIX_FMT_RGB24:
2026 	case V4L2_PIX_FMT_YUV444:
2027 		return 24;
2028 	case V4L2_PIX_FMT_RGB32:
2029 		return 32;
2030 	case V4L2_PIX_FMT_JPEG:
2031 	case V4L2_PIX_FMT_CUSTOM_M10MO_RAW:
2032 	case V4L2_PIX_FMT_SBGGR8:
2033 	case V4L2_PIX_FMT_SGBRG8:
2034 	case V4L2_PIX_FMT_SGRBG8:
2035 	case V4L2_PIX_FMT_SRGGB8:
2036 		return 8;
2037 	default:
2038 		return 8 * 2;	/* raw type now */
2039 	}
2040 }
2041 
2042 bool atomisp_is_mbuscode_raw(uint32_t code)
2043 {
2044 	return code >= 0x3000 && code < 0x4000;
2045 }
2046 
2047 /*
2048  * ISP features control function
2049  */
2050 
2051 /*
2052  * Set ISP capture mode based on current settings
2053  */
2054 static void atomisp_update_capture_mode(struct atomisp_sub_device *asd)
2055 {
2056 	if (asd->params.gdc_cac_en)
2057 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_ADVANCED);
2058 	else if (asd->params.low_light)
2059 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_LOW_LIGHT);
2060 	else if (asd->video_out_capture.sh_fmt == IA_CSS_FRAME_FORMAT_RAW)
2061 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_RAW);
2062 	else
2063 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_PRIMARY);
2064 }
2065 
2066 /* ISP2401 */
2067 int atomisp_set_sensor_runmode(struct atomisp_sub_device *asd,
2068 			       struct atomisp_s_runmode *runmode)
2069 {
2070 	struct atomisp_device *isp = asd->isp;
2071 	struct v4l2_ctrl *c;
2072 	int ret = 0;
2073 
2074 	if (!(runmode && (runmode->mode & RUNMODE_MASK)))
2075 		return -EINVAL;
2076 
2077 	mutex_lock(asd->ctrl_handler.lock);
2078 	c = v4l2_ctrl_find(isp->inputs[asd->input_curr].camera->ctrl_handler,
2079 			   V4L2_CID_RUN_MODE);
2080 
2081 	if (c)
2082 		ret = v4l2_ctrl_s_ctrl(c, runmode->mode);
2083 
2084 	mutex_unlock(asd->ctrl_handler.lock);
2085 	return ret;
2086 }
2087 
2088 /*
2089  * Function to enable/disable lens geometry distortion correction (GDC) and
2090  * chromatic aberration correction (CAC)
2091  */
2092 int atomisp_gdc_cac(struct atomisp_sub_device *asd, int flag,
2093 		    __s32 *value)
2094 {
2095 	if (flag == 0) {
2096 		*value = asd->params.gdc_cac_en;
2097 		return 0;
2098 	}
2099 
2100 	asd->params.gdc_cac_en = !!*value;
2101 	if (asd->params.gdc_cac_en) {
2102 		asd->params.config.morph_table = asd->params.css_param.morph_table;
2103 	} else {
2104 		asd->params.config.morph_table = NULL;
2105 	}
2106 	asd->params.css_update_params_needed = true;
2107 	atomisp_update_capture_mode(asd);
2108 	return 0;
2109 }
2110 
2111 /*
2112  * Function to enable/disable low light mode including ANR
2113  */
2114 int atomisp_low_light(struct atomisp_sub_device *asd, int flag,
2115 		      __s32 *value)
2116 {
2117 	if (flag == 0) {
2118 		*value = asd->params.low_light;
2119 		return 0;
2120 	}
2121 
2122 	asd->params.low_light = (*value != 0);
2123 	atomisp_update_capture_mode(asd);
2124 	return 0;
2125 }
2126 
2127 /*
2128  * Function to enable/disable extra noise reduction (XNR) in low light
2129  * condition
2130  */
2131 int atomisp_xnr(struct atomisp_sub_device *asd, int flag,
2132 		int *xnr_enable)
2133 {
2134 	if (flag == 0) {
2135 		*xnr_enable = asd->params.xnr_en;
2136 		return 0;
2137 	}
2138 
2139 	atomisp_css_capture_enable_xnr(asd, !!*xnr_enable);
2140 
2141 	return 0;
2142 }
2143 
2144 /*
2145  * Function to configure bayer noise reduction
2146  */
2147 int atomisp_nr(struct atomisp_sub_device *asd, int flag,
2148 	       struct atomisp_nr_config *arg)
2149 {
2150 	if (flag == 0) {
2151 		/* Get nr config from current setup */
2152 		if (atomisp_css_get_nr_config(asd, arg))
2153 			return -EINVAL;
2154 	} else {
2155 		/* Set nr config to isp parameters */
2156 		memcpy(&asd->params.css_param.nr_config, arg,
2157 		       sizeof(struct ia_css_nr_config));
2158 		asd->params.config.nr_config = &asd->params.css_param.nr_config;
2159 		asd->params.css_update_params_needed = true;
2160 	}
2161 	return 0;
2162 }
2163 
2164 /*
2165  * Function to configure temporal noise reduction (TNR)
2166  */
2167 int atomisp_tnr(struct atomisp_sub_device *asd, int flag,
2168 		struct atomisp_tnr_config *config)
2169 {
2170 	/* Get tnr config from current setup */
2171 	if (flag == 0) {
2172 		/* Get tnr config from current setup */
2173 		if (atomisp_css_get_tnr_config(asd, config))
2174 			return -EINVAL;
2175 	} else {
2176 		/* Set tnr config to isp parameters */
2177 		memcpy(&asd->params.css_param.tnr_config, config,
2178 		       sizeof(struct ia_css_tnr_config));
2179 		asd->params.config.tnr_config = &asd->params.css_param.tnr_config;
2180 		asd->params.css_update_params_needed = true;
2181 	}
2182 
2183 	return 0;
2184 }
2185 
2186 /*
2187  * Function to configure black level compensation
2188  */
2189 int atomisp_black_level(struct atomisp_sub_device *asd, int flag,
2190 			struct atomisp_ob_config *config)
2191 {
2192 	if (flag == 0) {
2193 		/* Get ob config from current setup */
2194 		if (atomisp_css_get_ob_config(asd, config))
2195 			return -EINVAL;
2196 	} else {
2197 		/* Set ob config to isp parameters */
2198 		memcpy(&asd->params.css_param.ob_config, config,
2199 		       sizeof(struct ia_css_ob_config));
2200 		asd->params.config.ob_config = &asd->params.css_param.ob_config;
2201 		asd->params.css_update_params_needed = true;
2202 	}
2203 
2204 	return 0;
2205 }
2206 
2207 /*
2208  * Function to configure edge enhancement
2209  */
2210 int atomisp_ee(struct atomisp_sub_device *asd, int flag,
2211 	       struct atomisp_ee_config *config)
2212 {
2213 	if (flag == 0) {
2214 		/* Get ee config from current setup */
2215 		if (atomisp_css_get_ee_config(asd, config))
2216 			return -EINVAL;
2217 	} else {
2218 		/* Set ee config to isp parameters */
2219 		memcpy(&asd->params.css_param.ee_config, config,
2220 		       sizeof(asd->params.css_param.ee_config));
2221 		asd->params.config.ee_config = &asd->params.css_param.ee_config;
2222 		asd->params.css_update_params_needed = true;
2223 	}
2224 
2225 	return 0;
2226 }
2227 
2228 /*
2229  * Function to update Gamma table for gamma, brightness and contrast config
2230  */
2231 int atomisp_gamma(struct atomisp_sub_device *asd, int flag,
2232 		  struct atomisp_gamma_table *config)
2233 {
2234 	if (flag == 0) {
2235 		/* Get gamma table from current setup */
2236 		if (atomisp_css_get_gamma_table(asd, config))
2237 			return -EINVAL;
2238 	} else {
2239 		/* Set gamma table to isp parameters */
2240 		memcpy(&asd->params.css_param.gamma_table, config,
2241 		       sizeof(asd->params.css_param.gamma_table));
2242 		asd->params.config.gamma_table = &asd->params.css_param.gamma_table;
2243 	}
2244 
2245 	return 0;
2246 }
2247 
2248 /*
2249  * Function to update Ctc table for Chroma Enhancement
2250  */
2251 int atomisp_ctc(struct atomisp_sub_device *asd, int flag,
2252 		struct atomisp_ctc_table *config)
2253 {
2254 	if (flag == 0) {
2255 		/* Get ctc table from current setup */
2256 		if (atomisp_css_get_ctc_table(asd, config))
2257 			return -EINVAL;
2258 	} else {
2259 		/* Set ctc table to isp parameters */
2260 		memcpy(&asd->params.css_param.ctc_table, config,
2261 		       sizeof(asd->params.css_param.ctc_table));
2262 		atomisp_css_set_ctc_table(asd, &asd->params.css_param.ctc_table);
2263 	}
2264 
2265 	return 0;
2266 }
2267 
2268 /*
2269  * Function to update gamma correction parameters
2270  */
2271 int atomisp_gamma_correction(struct atomisp_sub_device *asd, int flag,
2272 			     struct atomisp_gc_config *config)
2273 {
2274 	if (flag == 0) {
2275 		/* Get gamma correction params from current setup */
2276 		if (atomisp_css_get_gc_config(asd, config))
2277 			return -EINVAL;
2278 	} else {
2279 		/* Set gamma correction params to isp parameters */
2280 		memcpy(&asd->params.css_param.gc_config, config,
2281 		       sizeof(asd->params.css_param.gc_config));
2282 		asd->params.config.gc_config = &asd->params.css_param.gc_config;
2283 		asd->params.css_update_params_needed = true;
2284 	}
2285 
2286 	return 0;
2287 }
2288 
2289 /*
2290  * Function to update narrow gamma flag
2291  */
2292 int atomisp_formats(struct atomisp_sub_device *asd, int flag,
2293 		    struct atomisp_formats_config *config)
2294 {
2295 	if (flag == 0) {
2296 		/* Get narrow gamma flag from current setup */
2297 		if (atomisp_css_get_formats_config(asd, config))
2298 			return -EINVAL;
2299 	} else {
2300 		/* Set narrow gamma flag to isp parameters */
2301 		memcpy(&asd->params.css_param.formats_config, config,
2302 		       sizeof(asd->params.css_param.formats_config));
2303 		asd->params.config.formats_config = &asd->params.css_param.formats_config;
2304 	}
2305 
2306 	return 0;
2307 }
2308 
2309 void atomisp_free_internal_buffers(struct atomisp_sub_device *asd)
2310 {
2311 	atomisp_free_css_parameters(&asd->params.css_param);
2312 
2313 	if (asd->raw_output_frame) {
2314 		ia_css_frame_free(asd->raw_output_frame);
2315 		asd->raw_output_frame = NULL;
2316 	}
2317 }
2318 
2319 static void atomisp_update_grid_info(struct atomisp_sub_device *asd,
2320 				     enum ia_css_pipe_id pipe_id,
2321 				     int source_pad)
2322 {
2323 	struct atomisp_device *isp = asd->isp;
2324 	int err;
2325 	u16 stream_id = atomisp_source_pad_to_stream_id(asd, source_pad);
2326 
2327 	if (atomisp_css_get_grid_info(asd, pipe_id, source_pad))
2328 		return;
2329 
2330 	/* We must free all buffers because they no longer match
2331 	   the grid size. */
2332 	atomisp_css_free_stat_buffers(asd);
2333 
2334 	err = atomisp_alloc_css_stat_bufs(asd, stream_id);
2335 	if (err) {
2336 		dev_err(isp->dev, "stat_buf allocate error\n");
2337 		goto err;
2338 	}
2339 
2340 	if (atomisp_alloc_3a_output_buf(asd)) {
2341 		/* Failure for 3A buffers does not influence DIS buffers */
2342 		if (asd->params.s3a_output_bytes != 0) {
2343 			/* For SOC sensor happens s3a_output_bytes == 0,
2344 			 * using if condition to exclude false error log */
2345 			dev_err(isp->dev, "Failed to allocate memory for 3A statistics\n");
2346 		}
2347 		goto err;
2348 	}
2349 
2350 	if (atomisp_alloc_dis_coef_buf(asd)) {
2351 		dev_err(isp->dev,
2352 			"Failed to allocate memory for DIS statistics\n");
2353 		goto err;
2354 	}
2355 
2356 	if (atomisp_alloc_metadata_output_buf(asd)) {
2357 		dev_err(isp->dev, "Failed to allocate memory for metadata\n");
2358 		goto err;
2359 	}
2360 
2361 	return;
2362 
2363 err:
2364 	atomisp_css_free_stat_buffers(asd);
2365 	return;
2366 }
2367 
2368 static void atomisp_curr_user_grid_info(struct atomisp_sub_device *asd,
2369 					struct atomisp_grid_info *info)
2370 {
2371 	memcpy(info, &asd->params.curr_grid_info.s3a_grid,
2372 	       sizeof(struct ia_css_3a_grid_info));
2373 }
2374 
2375 int atomisp_compare_grid(struct atomisp_sub_device *asd,
2376 			 struct atomisp_grid_info *atomgrid)
2377 {
2378 	struct atomisp_grid_info tmp = {0};
2379 
2380 	atomisp_curr_user_grid_info(asd, &tmp);
2381 	return memcmp(atomgrid, &tmp, sizeof(tmp));
2382 }
2383 
2384 /*
2385  * Function to update Gdc table for gdc
2386  */
2387 int atomisp_gdc_cac_table(struct atomisp_sub_device *asd, int flag,
2388 			  struct atomisp_morph_table *config)
2389 {
2390 	int ret;
2391 	int i;
2392 	struct atomisp_device *isp = asd->isp;
2393 
2394 	if (flag == 0) {
2395 		/* Get gdc table from current setup */
2396 		struct ia_css_morph_table tab = {0};
2397 
2398 		atomisp_css_get_morph_table(asd, &tab);
2399 
2400 		config->width = tab.width;
2401 		config->height = tab.height;
2402 
2403 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
2404 			ret = copy_to_user(config->coordinates_x[i],
2405 					   tab.coordinates_x[i], tab.height *
2406 					   tab.width * sizeof(*tab.coordinates_x[i]));
2407 			if (ret) {
2408 				dev_err(isp->dev,
2409 					"Failed to copy to User for x\n");
2410 				return -EFAULT;
2411 			}
2412 			ret = copy_to_user(config->coordinates_y[i],
2413 					   tab.coordinates_y[i], tab.height *
2414 					   tab.width * sizeof(*tab.coordinates_y[i]));
2415 			if (ret) {
2416 				dev_err(isp->dev,
2417 					"Failed to copy to User for y\n");
2418 				return -EFAULT;
2419 			}
2420 		}
2421 	} else {
2422 		struct ia_css_morph_table *tab =
2423 			    asd->params.css_param.morph_table;
2424 
2425 		/* free first if we have one */
2426 		if (tab) {
2427 			atomisp_css_morph_table_free(tab);
2428 			asd->params.css_param.morph_table = NULL;
2429 		}
2430 
2431 		/* allocate new one */
2432 		tab = atomisp_css_morph_table_allocate(config->width,
2433 						       config->height);
2434 
2435 		if (!tab) {
2436 			dev_err(isp->dev, "out of memory\n");
2437 			return -EINVAL;
2438 		}
2439 
2440 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
2441 			ret = copy_from_user(tab->coordinates_x[i],
2442 					     config->coordinates_x[i],
2443 					     config->height * config->width *
2444 					     sizeof(*config->coordinates_x[i]));
2445 			if (ret) {
2446 				dev_err(isp->dev,
2447 					"Failed to copy from User for x, ret %d\n",
2448 					ret);
2449 				atomisp_css_morph_table_free(tab);
2450 				return -EFAULT;
2451 			}
2452 			ret = copy_from_user(tab->coordinates_y[i],
2453 					     config->coordinates_y[i],
2454 					     config->height * config->width *
2455 					     sizeof(*config->coordinates_y[i]));
2456 			if (ret) {
2457 				dev_err(isp->dev,
2458 					"Failed to copy from User for y, ret is %d\n",
2459 					ret);
2460 				atomisp_css_morph_table_free(tab);
2461 				return -EFAULT;
2462 			}
2463 		}
2464 		asd->params.css_param.morph_table = tab;
2465 		if (asd->params.gdc_cac_en)
2466 			asd->params.config.morph_table = tab;
2467 	}
2468 
2469 	return 0;
2470 }
2471 
2472 int atomisp_macc_table(struct atomisp_sub_device *asd, int flag,
2473 		       struct atomisp_macc_config *config)
2474 {
2475 	struct ia_css_macc_table *macc_table;
2476 
2477 	switch (config->color_effect) {
2478 	case V4L2_COLORFX_NONE:
2479 		macc_table = &asd->params.css_param.macc_table;
2480 		break;
2481 	case V4L2_COLORFX_SKY_BLUE:
2482 		macc_table = &blue_macc_table;
2483 		break;
2484 	case V4L2_COLORFX_GRASS_GREEN:
2485 		macc_table = &green_macc_table;
2486 		break;
2487 	case V4L2_COLORFX_SKIN_WHITEN_LOW:
2488 		macc_table = &skin_low_macc_table;
2489 		break;
2490 	case V4L2_COLORFX_SKIN_WHITEN:
2491 		macc_table = &skin_medium_macc_table;
2492 		break;
2493 	case V4L2_COLORFX_SKIN_WHITEN_HIGH:
2494 		macc_table = &skin_high_macc_table;
2495 		break;
2496 	default:
2497 		return -EINVAL;
2498 	}
2499 
2500 	if (flag == 0) {
2501 		/* Get macc table from current setup */
2502 		memcpy(&config->table, macc_table,
2503 		       sizeof(struct ia_css_macc_table));
2504 	} else {
2505 		memcpy(macc_table, &config->table,
2506 		       sizeof(struct ia_css_macc_table));
2507 		if (config->color_effect == asd->params.color_effect)
2508 			asd->params.config.macc_table = macc_table;
2509 	}
2510 
2511 	return 0;
2512 }
2513 
2514 int atomisp_set_dis_vector(struct atomisp_sub_device *asd,
2515 			   struct atomisp_dis_vector *vector)
2516 {
2517 	atomisp_css_video_set_dis_vector(asd, vector);
2518 
2519 	asd->params.dis_proj_data_valid = false;
2520 	asd->params.css_update_params_needed = true;
2521 	return 0;
2522 }
2523 
2524 /*
2525  * Function to set/get image stablization statistics
2526  */
2527 int atomisp_get_dis_stat(struct atomisp_sub_device *asd,
2528 			 struct atomisp_dis_statistics *stats)
2529 {
2530 	return atomisp_css_get_dis_stat(asd, stats);
2531 }
2532 
2533 /*
2534  * Function  set camrea_prefiles.xml current sensor pixel array size
2535  */
2536 int atomisp_set_array_res(struct atomisp_sub_device *asd,
2537 			  struct atomisp_resolution  *config)
2538 {
2539 	dev_dbg(asd->isp->dev, ">%s start\n", __func__);
2540 	if (!config) {
2541 		dev_err(asd->isp->dev, "Set sensor array size is not valid\n");
2542 		return -EINVAL;
2543 	}
2544 
2545 	asd->sensor_array_res.width = config->width;
2546 	asd->sensor_array_res.height = config->height;
2547 	return 0;
2548 }
2549 
2550 /*
2551  * Function to get DVS2 BQ resolution settings
2552  */
2553 int atomisp_get_dvs2_bq_resolutions(struct atomisp_sub_device *asd,
2554 				    struct atomisp_dvs2_bq_resolutions *bq_res)
2555 {
2556 	struct ia_css_pipe_config *pipe_cfg = NULL;
2557 	struct ia_css_stream_config *stream_cfg = NULL;
2558 	struct ia_css_stream_input_config *input_config = NULL;
2559 
2560 	struct ia_css_stream *stream =
2561 		    asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream;
2562 	if (!stream) {
2563 		dev_warn(asd->isp->dev, "stream is not created");
2564 		return -EAGAIN;
2565 	}
2566 
2567 	pipe_cfg = &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL]
2568 		   .pipe_configs[IA_CSS_PIPE_ID_VIDEO];
2569 	stream_cfg = &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL]
2570 		     .stream_config;
2571 	input_config = &stream_cfg->input_config;
2572 
2573 	if (!bq_res)
2574 		return -EINVAL;
2575 
2576 	/* the GDC output resolution */
2577 	bq_res->output_bq.width_bq = pipe_cfg->output_info[0].res.width / 2;
2578 	bq_res->output_bq.height_bq = pipe_cfg->output_info[0].res.height / 2;
2579 
2580 	bq_res->envelope_bq.width_bq = 0;
2581 	bq_res->envelope_bq.height_bq = 0;
2582 	/* the GDC input resolution */
2583 	if (!asd->continuous_mode->val) {
2584 		bq_res->source_bq.width_bq = bq_res->output_bq.width_bq +
2585 					     pipe_cfg->dvs_envelope.width / 2;
2586 		bq_res->source_bq.height_bq = bq_res->output_bq.height_bq +
2587 					      pipe_cfg->dvs_envelope.height / 2;
2588 		/*
2589 		 * Bad pixels caused by spatial filter processing
2590 		 * ISP filter resolution should be given by CSS/FW, but for now
2591 		 * there is not such API to query, and it is fixed value, so
2592 		 * hardcoded here.
2593 		 */
2594 		bq_res->ispfilter_bq.width_bq = 12 / 2;
2595 		bq_res->ispfilter_bq.height_bq = 12 / 2;
2596 		/* spatial filter shift, always 4 pixels */
2597 		bq_res->gdc_shift_bq.width_bq = 4 / 2;
2598 		bq_res->gdc_shift_bq.height_bq = 4 / 2;
2599 
2600 		if (asd->params.video_dis_en) {
2601 			bq_res->envelope_bq.width_bq = pipe_cfg->dvs_envelope.width
2602 						       / 2 - bq_res->ispfilter_bq.width_bq;
2603 			bq_res->envelope_bq.height_bq = pipe_cfg->dvs_envelope.height
2604 							/ 2 - bq_res->ispfilter_bq.height_bq;
2605 		}
2606 	} else {
2607 		unsigned int w_padding;
2608 		unsigned int gdc_effective_input = 0;
2609 
2610 		/* For GDC:
2611 		 * gdc_effective_input = effective_input + envelope
2612 		 *
2613 		 * From the comment and formula in BZ1786,
2614 		 * we see the source_bq should be:
2615 		 * effective_input / bayer_ds_ratio
2616 		 */
2617 		bq_res->source_bq.width_bq =
2618 		    (input_config->effective_res.width *
2619 		     pipe_cfg->bayer_ds_out_res.width /
2620 		     input_config->effective_res.width + 1) / 2;
2621 		bq_res->source_bq.height_bq =
2622 		    (input_config->effective_res.height *
2623 		     pipe_cfg->bayer_ds_out_res.height /
2624 		     input_config->effective_res.height + 1) / 2;
2625 
2626 		if (!asd->params.video_dis_en) {
2627 			/*
2628 			 * We adjust the ispfilter_bq to:
2629 			 * ispfilter_bq = 128/BDS
2630 			 * we still need firmware team to provide an offical
2631 			 * formula for SDV.
2632 			 */
2633 			bq_res->ispfilter_bq.width_bq = 128 *
2634 							pipe_cfg->bayer_ds_out_res.width /
2635 							input_config->effective_res.width / 2;
2636 			bq_res->ispfilter_bq.height_bq = 128 *
2637 							 pipe_cfg->bayer_ds_out_res.width /
2638 							 input_config->effective_res.width / 2;
2639 
2640 			if (IS_HWREVISION(asd->isp, ATOMISP_HW_REVISION_ISP2401)) {
2641 				/* No additional left padding for ISYS2401 */
2642 				bq_res->gdc_shift_bq.width_bq = 4 / 2;
2643 				bq_res->gdc_shift_bq.height_bq = 4 / 2;
2644 			} else {
2645 				/*
2646 				 * For the w_padding and gdc_shift_bq cacluation
2647 				 * Please see the BZ 1786 and 4358 for more info.
2648 				 * Just test that this formula can work now,
2649 				 * but we still have no offical formula.
2650 				 *
2651 				 * w_padding = ceiling(gdc_effective_input
2652 				 *             /128, 1) * 128 - effective_width
2653 				 * gdc_shift_bq = w_padding/BDS/2 + ispfilter_bq/2
2654 				 */
2655 				gdc_effective_input =
2656 				    input_config->effective_res.width +
2657 				    pipe_cfg->dvs_envelope.width;
2658 				w_padding = roundup(gdc_effective_input, 128) -
2659 					    input_config->effective_res.width;
2660 				w_padding = w_padding *
2661 					    pipe_cfg->bayer_ds_out_res.width /
2662 					    input_config->effective_res.width + 1;
2663 				w_padding = roundup(w_padding / 2, 1);
2664 
2665 				bq_res->gdc_shift_bq.width_bq = bq_res->ispfilter_bq.width_bq / 2
2666 								+ w_padding;
2667 				bq_res->gdc_shift_bq.height_bq = 4 / 2;
2668 			}
2669 		} else {
2670 			unsigned int dvs_w, dvs_h, dvs_w_max, dvs_h_max;
2671 
2672 			bq_res->ispfilter_bq.width_bq = 8 / 2;
2673 			bq_res->ispfilter_bq.height_bq = 8 / 2;
2674 
2675 			if (IS_HWREVISION(asd->isp, ATOMISP_HW_REVISION_ISP2401)) {
2676 				/* No additional left padding for ISYS2401 */
2677 				bq_res->gdc_shift_bq.width_bq = 4 / 2;
2678 				bq_res->gdc_shift_bq.height_bq = 4 / 2;
2679 			} else {
2680 				w_padding =
2681 				    roundup(input_config->effective_res.width, 128) -
2682 				    input_config->effective_res.width;
2683 				if (w_padding < 12)
2684 					w_padding = 12;
2685 				bq_res->gdc_shift_bq.width_bq = 4 / 2 +
2686 								((w_padding - 12) *
2687 								 pipe_cfg->bayer_ds_out_res.width /
2688 								 input_config->effective_res.width + 1) / 2;
2689 				bq_res->gdc_shift_bq.height_bq = 4 / 2;
2690 			}
2691 
2692 			dvs_w = pipe_cfg->bayer_ds_out_res.width -
2693 				pipe_cfg->output_info[0].res.width;
2694 			dvs_h = pipe_cfg->bayer_ds_out_res.height -
2695 				pipe_cfg->output_info[0].res.height;
2696 			dvs_w_max = rounddown(
2697 					pipe_cfg->output_info[0].res.width / 5,
2698 					ATOM_ISP_STEP_WIDTH);
2699 			dvs_h_max = rounddown(
2700 					pipe_cfg->output_info[0].res.height / 5,
2701 					ATOM_ISP_STEP_HEIGHT);
2702 			bq_res->envelope_bq.width_bq =
2703 			    min((dvs_w / 2), (dvs_w_max / 2)) -
2704 			    bq_res->ispfilter_bq.width_bq;
2705 			bq_res->envelope_bq.height_bq =
2706 			    min((dvs_h / 2), (dvs_h_max / 2)) -
2707 			    bq_res->ispfilter_bq.height_bq;
2708 		}
2709 	}
2710 
2711 	dev_dbg(asd->isp->dev,
2712 		"source_bq.width_bq %d, source_bq.height_bq %d,\nispfilter_bq.width_bq %d, ispfilter_bq.height_bq %d,\ngdc_shift_bq.width_bq %d, gdc_shift_bq.height_bq %d,\nenvelope_bq.width_bq %d, envelope_bq.height_bq %d,\noutput_bq.width_bq %d, output_bq.height_bq %d\n",
2713 		bq_res->source_bq.width_bq, bq_res->source_bq.height_bq,
2714 		bq_res->ispfilter_bq.width_bq, bq_res->ispfilter_bq.height_bq,
2715 		bq_res->gdc_shift_bq.width_bq, bq_res->gdc_shift_bq.height_bq,
2716 		bq_res->envelope_bq.width_bq, bq_res->envelope_bq.height_bq,
2717 		bq_res->output_bq.width_bq, bq_res->output_bq.height_bq);
2718 
2719 	return 0;
2720 }
2721 
2722 int atomisp_set_dis_coefs(struct atomisp_sub_device *asd,
2723 			  struct atomisp_dis_coefficients *coefs)
2724 {
2725 	return atomisp_css_set_dis_coefs(asd, coefs);
2726 }
2727 
2728 /*
2729  * Function to set/get 3A stat from isp
2730  */
2731 int atomisp_3a_stat(struct atomisp_sub_device *asd, int flag,
2732 		    struct atomisp_3a_statistics *config)
2733 {
2734 	struct atomisp_device *isp = asd->isp;
2735 	struct atomisp_s3a_buf *s3a_buf;
2736 	unsigned long ret;
2737 
2738 	if (flag != 0)
2739 		return -EINVAL;
2740 
2741 	/* sanity check to avoid writing into unallocated memory. */
2742 	if (asd->params.s3a_output_bytes == 0)
2743 		return -EINVAL;
2744 
2745 	if (atomisp_compare_grid(asd, &config->grid_info) != 0) {
2746 		/* If the grid info in the argument differs from the current
2747 		   grid info, we tell the caller to reset the grid size and
2748 		   try again. */
2749 		return -EAGAIN;
2750 	}
2751 
2752 	if (list_empty(&asd->s3a_stats_ready)) {
2753 		dev_err(isp->dev, "3a statistics is not valid.\n");
2754 		return -EAGAIN;
2755 	}
2756 
2757 	s3a_buf = list_entry(asd->s3a_stats_ready.next,
2758 			     struct atomisp_s3a_buf, list);
2759 	if (s3a_buf->s3a_map)
2760 		ia_css_translate_3a_statistics(
2761 		    asd->params.s3a_user_stat, s3a_buf->s3a_map);
2762 	else
2763 		ia_css_get_3a_statistics(asd->params.s3a_user_stat,
2764 					 s3a_buf->s3a_data);
2765 
2766 	config->exp_id = s3a_buf->s3a_data->exp_id;
2767 	config->isp_config_id = s3a_buf->s3a_data->isp_config_id;
2768 
2769 	ret = copy_to_user(config->data, asd->params.s3a_user_stat->data,
2770 			   asd->params.s3a_output_bytes);
2771 	if (ret) {
2772 		dev_err(isp->dev, "copy to user failed: copied %lu bytes\n",
2773 			ret);
2774 		return -EFAULT;
2775 	}
2776 
2777 	/* Move to free buffer list */
2778 	list_del_init(&s3a_buf->list);
2779 	list_add_tail(&s3a_buf->list, &asd->s3a_stats);
2780 	dev_dbg(isp->dev, "%s: finish getting exp_id %d 3a stat, isp_config_id %d\n",
2781 		__func__,
2782 		config->exp_id, config->isp_config_id);
2783 	return 0;
2784 }
2785 
2786 int atomisp_get_metadata(struct atomisp_sub_device *asd, int flag,
2787 			 struct atomisp_metadata *md)
2788 {
2789 	struct atomisp_device *isp = asd->isp;
2790 	struct ia_css_stream_info *stream_info;
2791 	struct camera_mipi_info *mipi_info;
2792 	struct atomisp_metadata_buf *md_buf;
2793 	enum atomisp_metadata_type md_type = ATOMISP_MAIN_METADATA;
2794 	int ret, i;
2795 
2796 	if (flag != 0)
2797 		return -EINVAL;
2798 
2799 	stream_info = &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].
2800 		      stream_info;
2801 
2802 	/* We always return the resolution and stride even if there is
2803 	 * no valid metadata. This allows the caller to get the information
2804 	 * needed to allocate user-space buffers. */
2805 	md->width  = stream_info->metadata_info.resolution.width;
2806 	md->height = stream_info->metadata_info.resolution.height;
2807 	md->stride = stream_info->metadata_info.stride;
2808 
2809 	/* sanity check to avoid writing into unallocated memory.
2810 	 * This does not return an error because it is a valid way
2811 	 * for applications to detect that metadata is not enabled. */
2812 	if (md->width == 0 || md->height == 0 || !md->data)
2813 		return 0;
2814 
2815 	/* This is done in the atomisp_buf_done() */
2816 	if (list_empty(&asd->metadata_ready[md_type])) {
2817 		dev_warn(isp->dev, "Metadata queue is empty now!\n");
2818 		return -EAGAIN;
2819 	}
2820 
2821 	mipi_info = atomisp_to_sensor_mipi_info(
2822 			isp->inputs[asd->input_curr].camera);
2823 	if (!mipi_info)
2824 		return -EINVAL;
2825 
2826 	if (mipi_info->metadata_effective_width) {
2827 		for (i = 0; i < md->height; i++)
2828 			md->effective_width[i] =
2829 			    mipi_info->metadata_effective_width[i];
2830 	}
2831 
2832 	md_buf = list_entry(asd->metadata_ready[md_type].next,
2833 			    struct atomisp_metadata_buf, list);
2834 	md->exp_id = md_buf->metadata->exp_id;
2835 	if (md_buf->md_vptr) {
2836 		ret = copy_to_user(md->data,
2837 				   md_buf->md_vptr,
2838 				   stream_info->metadata_info.size);
2839 	} else {
2840 		hmm_load(md_buf->metadata->address,
2841 			 asd->params.metadata_user[md_type],
2842 			 stream_info->metadata_info.size);
2843 
2844 		ret = copy_to_user(md->data,
2845 				   asd->params.metadata_user[md_type],
2846 				   stream_info->metadata_info.size);
2847 	}
2848 	if (ret) {
2849 		dev_err(isp->dev, "copy to user failed: copied %d bytes\n",
2850 			ret);
2851 		return -EFAULT;
2852 	}
2853 
2854 	list_del_init(&md_buf->list);
2855 	list_add_tail(&md_buf->list, &asd->metadata[md_type]);
2856 
2857 	dev_dbg(isp->dev, "%s: HAL de-queued metadata type %d with exp_id %d\n",
2858 		__func__, md_type, md->exp_id);
2859 	return 0;
2860 }
2861 
2862 int atomisp_get_metadata_by_type(struct atomisp_sub_device *asd, int flag,
2863 				 struct atomisp_metadata_with_type *md)
2864 {
2865 	struct atomisp_device *isp = asd->isp;
2866 	struct ia_css_stream_info *stream_info;
2867 	struct camera_mipi_info *mipi_info;
2868 	struct atomisp_metadata_buf *md_buf;
2869 	enum atomisp_metadata_type md_type;
2870 	int ret, i;
2871 
2872 	if (flag != 0)
2873 		return -EINVAL;
2874 
2875 	stream_info = &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].
2876 		      stream_info;
2877 
2878 	/* We always return the resolution and stride even if there is
2879 	 * no valid metadata. This allows the caller to get the information
2880 	 * needed to allocate user-space buffers. */
2881 	md->width  = stream_info->metadata_info.resolution.width;
2882 	md->height = stream_info->metadata_info.resolution.height;
2883 	md->stride = stream_info->metadata_info.stride;
2884 
2885 	/* sanity check to avoid writing into unallocated memory.
2886 	 * This does not return an error because it is a valid way
2887 	 * for applications to detect that metadata is not enabled. */
2888 	if (md->width == 0 || md->height == 0 || !md->data)
2889 		return 0;
2890 
2891 	md_type = md->type;
2892 	if (md_type < 0 || md_type >= ATOMISP_METADATA_TYPE_NUM)
2893 		return -EINVAL;
2894 
2895 	/* This is done in the atomisp_buf_done() */
2896 	if (list_empty(&asd->metadata_ready[md_type])) {
2897 		dev_warn(isp->dev, "Metadata queue is empty now!\n");
2898 		return -EAGAIN;
2899 	}
2900 
2901 	mipi_info = atomisp_to_sensor_mipi_info(
2902 			isp->inputs[asd->input_curr].camera);
2903 	if (!mipi_info)
2904 		return -EINVAL;
2905 
2906 	if (mipi_info->metadata_effective_width) {
2907 		for (i = 0; i < md->height; i++)
2908 			md->effective_width[i] =
2909 			    mipi_info->metadata_effective_width[i];
2910 	}
2911 
2912 	md_buf = list_entry(asd->metadata_ready[md_type].next,
2913 			    struct atomisp_metadata_buf, list);
2914 	md->exp_id = md_buf->metadata->exp_id;
2915 	if (md_buf->md_vptr) {
2916 		ret = copy_to_user(md->data,
2917 				   md_buf->md_vptr,
2918 				   stream_info->metadata_info.size);
2919 	} else {
2920 		hmm_load(md_buf->metadata->address,
2921 			 asd->params.metadata_user[md_type],
2922 			 stream_info->metadata_info.size);
2923 
2924 		ret = copy_to_user(md->data,
2925 				   asd->params.metadata_user[md_type],
2926 				   stream_info->metadata_info.size);
2927 	}
2928 	if (ret) {
2929 		dev_err(isp->dev, "copy to user failed: copied %d bytes\n",
2930 			ret);
2931 		return -EFAULT;
2932 	} else {
2933 		list_del_init(&md_buf->list);
2934 		list_add_tail(&md_buf->list, &asd->metadata[md_type]);
2935 	}
2936 	dev_dbg(isp->dev, "%s: HAL de-queued metadata type %d with exp_id %d\n",
2937 		__func__, md_type, md->exp_id);
2938 	return 0;
2939 }
2940 
2941 /*
2942  * Function to calculate real zoom region for every pipe
2943  */
2944 int atomisp_calculate_real_zoom_region(struct atomisp_sub_device *asd,
2945 				       struct ia_css_dz_config   *dz_config,
2946 				       enum ia_css_pipe_id css_pipe_id)
2947 
2948 {
2949 	struct atomisp_stream_env *stream_env =
2950 		    &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL];
2951 	struct atomisp_resolution  eff_res, out_res;
2952 	int w_offset, h_offset;
2953 
2954 	memset(&eff_res, 0, sizeof(eff_res));
2955 	memset(&out_res, 0, sizeof(out_res));
2956 
2957 	if (dz_config->dx || dz_config->dy)
2958 		return 0;
2959 
2960 	if (css_pipe_id != IA_CSS_PIPE_ID_PREVIEW
2961 	    && css_pipe_id != IA_CSS_PIPE_ID_CAPTURE) {
2962 		dev_err(asd->isp->dev, "%s the set pipe no support crop region"
2963 			, __func__);
2964 		return -EINVAL;
2965 	}
2966 
2967 	eff_res.width =
2968 	    stream_env->stream_config.input_config.effective_res.width;
2969 	eff_res.height =
2970 	    stream_env->stream_config.input_config.effective_res.height;
2971 	if (eff_res.width == 0 || eff_res.height == 0) {
2972 		dev_err(asd->isp->dev, "%s err effective resolution"
2973 			, __func__);
2974 		return -EINVAL;
2975 	}
2976 
2977 	if (dz_config->zoom_region.resolution.width
2978 	    == asd->sensor_array_res.width
2979 	    || dz_config->zoom_region.resolution.height
2980 	    == asd->sensor_array_res.height) {
2981 		/*no need crop region*/
2982 		dz_config->zoom_region.origin.x = 0;
2983 		dz_config->zoom_region.origin.y = 0;
2984 		dz_config->zoom_region.resolution.width = eff_res.width;
2985 		dz_config->zoom_region.resolution.height = eff_res.height;
2986 		return 0;
2987 	}
2988 
2989 	/* FIXME:
2990 	 * This is not the correct implementation with Google's definition, due
2991 	 * to firmware limitation.
2992 	 * map real crop region base on above calculating base max crop region.
2993 	 */
2994 
2995 	if (!IS_ISP2401) {
2996 		dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
2997 						  * eff_res.width
2998 						  / asd->sensor_array_res.width;
2999 		dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
3000 						  * eff_res.height
3001 						  / asd->sensor_array_res.height;
3002 		dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
3003 							  * eff_res.width
3004 							  / asd->sensor_array_res.width;
3005 		dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
3006 							  * eff_res.height
3007 							  / asd->sensor_array_res.height;
3008 		/*
3009 		 * Set same ratio of crop region resolution and current pipe output
3010 		 * resolution
3011 		 */
3012 		out_res.width = stream_env->pipe_configs[css_pipe_id].output_info[0].res.width;
3013 		out_res.height = stream_env->pipe_configs[css_pipe_id].output_info[0].res.height;
3014 		if (out_res.width == 0 || out_res.height == 0) {
3015 			dev_err(asd->isp->dev, "%s err current pipe output resolution"
3016 				, __func__);
3017 			return -EINVAL;
3018 		}
3019 	} else {
3020 		out_res.width = stream_env->pipe_configs[css_pipe_id].output_info[0].res.width;
3021 		out_res.height = stream_env->pipe_configs[css_pipe_id].output_info[0].res.height;
3022 		if (out_res.width == 0 || out_res.height == 0) {
3023 			dev_err(asd->isp->dev, "%s err current pipe output resolution"
3024 				, __func__);
3025 			return -EINVAL;
3026 		}
3027 
3028 		if (asd->sensor_array_res.width * out_res.height
3029 		    < out_res.width * asd->sensor_array_res.height) {
3030 			h_offset = asd->sensor_array_res.height
3031 				   - asd->sensor_array_res.width
3032 				   * out_res.height / out_res.width;
3033 			h_offset = h_offset / 2;
3034 			if (dz_config->zoom_region.origin.y < h_offset)
3035 				dz_config->zoom_region.origin.y = 0;
3036 			else
3037 				dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y - h_offset;
3038 			w_offset = 0;
3039 		} else {
3040 			w_offset = asd->sensor_array_res.width
3041 				   - asd->sensor_array_res.height
3042 				   * out_res.width / out_res.height;
3043 			w_offset = w_offset / 2;
3044 			if (dz_config->zoom_region.origin.x < w_offset)
3045 				dz_config->zoom_region.origin.x = 0;
3046 			else
3047 				dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x - w_offset;
3048 			h_offset = 0;
3049 		}
3050 		dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
3051 						  * eff_res.width
3052 						  / (asd->sensor_array_res.width - 2 * w_offset);
3053 		dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
3054 						  * eff_res.height
3055 						  / (asd->sensor_array_res.height - 2 * h_offset);
3056 		dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
3057 						  * eff_res.width
3058 						  / (asd->sensor_array_res.width - 2 * w_offset);
3059 		dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
3060 						  * eff_res.height
3061 						  / (asd->sensor_array_res.height - 2 * h_offset);
3062 	}
3063 
3064 	if (out_res.width * dz_config->zoom_region.resolution.height
3065 	    > dz_config->zoom_region.resolution.width * out_res.height) {
3066 		dz_config->zoom_region.resolution.height =
3067 		    dz_config->zoom_region.resolution.width
3068 		    * out_res.height / out_res.width;
3069 	} else {
3070 		dz_config->zoom_region.resolution.width =
3071 		    dz_config->zoom_region.resolution.height
3072 		    * out_res.width / out_res.height;
3073 	}
3074 	dev_dbg(asd->isp->dev,
3075 		"%s crop region:(%d,%d),(%d,%d) eff_res(%d, %d) array_size(%d,%d) out_res(%d, %d)\n",
3076 		__func__, dz_config->zoom_region.origin.x,
3077 		dz_config->zoom_region.origin.y,
3078 		dz_config->zoom_region.resolution.width,
3079 		dz_config->zoom_region.resolution.height,
3080 		eff_res.width, eff_res.height,
3081 		asd->sensor_array_res.width,
3082 		asd->sensor_array_res.height,
3083 		out_res.width, out_res.height);
3084 
3085 	if ((dz_config->zoom_region.origin.x +
3086 	     dz_config->zoom_region.resolution.width
3087 	     > eff_res.width) ||
3088 	    (dz_config->zoom_region.origin.y +
3089 	     dz_config->zoom_region.resolution.height
3090 	     > eff_res.height))
3091 		return -EINVAL;
3092 
3093 	return 0;
3094 }
3095 
3096 /*
3097  * Function to check the zoom region whether is effective
3098  */
3099 static bool atomisp_check_zoom_region(
3100     struct atomisp_sub_device *asd,
3101     struct ia_css_dz_config *dz_config)
3102 {
3103 	struct atomisp_resolution  config;
3104 	bool flag = false;
3105 	unsigned int w, h;
3106 
3107 	memset(&config, 0, sizeof(struct atomisp_resolution));
3108 
3109 	if (dz_config->dx && dz_config->dy)
3110 		return true;
3111 
3112 	config.width = asd->sensor_array_res.width;
3113 	config.height = asd->sensor_array_res.height;
3114 	w = dz_config->zoom_region.origin.x +
3115 	    dz_config->zoom_region.resolution.width;
3116 	h = dz_config->zoom_region.origin.y +
3117 	    dz_config->zoom_region.resolution.height;
3118 
3119 	if ((w <= config.width) && (h <= config.height) && w > 0 && h > 0)
3120 		flag = true;
3121 	else
3122 		/* setting error zoom region */
3123 		dev_err(asd->isp->dev,
3124 			"%s zoom region ERROR:dz_config:(%d,%d),(%d,%d)array_res(%d, %d)\n",
3125 			__func__, dz_config->zoom_region.origin.x,
3126 			dz_config->zoom_region.origin.y,
3127 			dz_config->zoom_region.resolution.width,
3128 			dz_config->zoom_region.resolution.height,
3129 			config.width, config.height);
3130 
3131 	return flag;
3132 }
3133 
3134 void atomisp_apply_css_parameters(
3135     struct atomisp_sub_device *asd,
3136     struct atomisp_css_params *css_param)
3137 {
3138 	if (css_param->update_flag.wb_config)
3139 		asd->params.config.wb_config = &css_param->wb_config;
3140 
3141 	if (css_param->update_flag.ob_config)
3142 		asd->params.config.ob_config = &css_param->ob_config;
3143 
3144 	if (css_param->update_flag.dp_config)
3145 		asd->params.config.dp_config = &css_param->dp_config;
3146 
3147 	if (css_param->update_flag.nr_config)
3148 		asd->params.config.nr_config = &css_param->nr_config;
3149 
3150 	if (css_param->update_flag.ee_config)
3151 		asd->params.config.ee_config = &css_param->ee_config;
3152 
3153 	if (css_param->update_flag.tnr_config)
3154 		asd->params.config.tnr_config = &css_param->tnr_config;
3155 
3156 	if (css_param->update_flag.a3a_config)
3157 		asd->params.config.s3a_config = &css_param->s3a_config;
3158 
3159 	if (css_param->update_flag.ctc_config)
3160 		asd->params.config.ctc_config = &css_param->ctc_config;
3161 
3162 	if (css_param->update_flag.cnr_config)
3163 		asd->params.config.cnr_config = &css_param->cnr_config;
3164 
3165 	if (css_param->update_flag.ecd_config)
3166 		asd->params.config.ecd_config = &css_param->ecd_config;
3167 
3168 	if (css_param->update_flag.ynr_config)
3169 		asd->params.config.ynr_config = &css_param->ynr_config;
3170 
3171 	if (css_param->update_flag.fc_config)
3172 		asd->params.config.fc_config = &css_param->fc_config;
3173 
3174 	if (css_param->update_flag.macc_config)
3175 		asd->params.config.macc_config = &css_param->macc_config;
3176 
3177 	if (css_param->update_flag.aa_config)
3178 		asd->params.config.aa_config = &css_param->aa_config;
3179 
3180 	if (css_param->update_flag.anr_config)
3181 		asd->params.config.anr_config = &css_param->anr_config;
3182 
3183 	if (css_param->update_flag.xnr_config)
3184 		asd->params.config.xnr_config = &css_param->xnr_config;
3185 
3186 	if (css_param->update_flag.yuv2rgb_cc_config)
3187 		asd->params.config.yuv2rgb_cc_config = &css_param->yuv2rgb_cc_config;
3188 
3189 	if (css_param->update_flag.rgb2yuv_cc_config)
3190 		asd->params.config.rgb2yuv_cc_config = &css_param->rgb2yuv_cc_config;
3191 
3192 	if (css_param->update_flag.macc_table)
3193 		asd->params.config.macc_table = &css_param->macc_table;
3194 
3195 	if (css_param->update_flag.xnr_table)
3196 		asd->params.config.xnr_table = &css_param->xnr_table;
3197 
3198 	if (css_param->update_flag.r_gamma_table)
3199 		asd->params.config.r_gamma_table = &css_param->r_gamma_table;
3200 
3201 	if (css_param->update_flag.g_gamma_table)
3202 		asd->params.config.g_gamma_table = &css_param->g_gamma_table;
3203 
3204 	if (css_param->update_flag.b_gamma_table)
3205 		asd->params.config.b_gamma_table = &css_param->b_gamma_table;
3206 
3207 	if (css_param->update_flag.anr_thres)
3208 		atomisp_css_set_anr_thres(asd, &css_param->anr_thres);
3209 
3210 	if (css_param->update_flag.shading_table)
3211 		asd->params.config.shading_table = css_param->shading_table;
3212 
3213 	if (css_param->update_flag.morph_table && asd->params.gdc_cac_en)
3214 		asd->params.config.morph_table = css_param->morph_table;
3215 
3216 	if (css_param->update_flag.dvs2_coefs) {
3217 		struct ia_css_dvs_grid_info *dvs_grid_info =
3218 		    atomisp_css_get_dvs_grid_info(
3219 			&asd->params.curr_grid_info);
3220 
3221 		if (dvs_grid_info && dvs_grid_info->enable)
3222 			atomisp_css_set_dvs2_coefs(asd, css_param->dvs2_coeff);
3223 	}
3224 
3225 	if (css_param->update_flag.dvs_6axis_config)
3226 		atomisp_css_set_dvs_6axis(asd, css_param->dvs_6axis);
3227 
3228 	atomisp_css_set_isp_config_id(asd, css_param->isp_config_id);
3229 	/*
3230 	 * These configurations are on used by ISP1.x, not for ISP2.x,
3231 	 * so do not handle them. see comments of ia_css_isp_config.
3232 	 * 1 cc_config
3233 	 * 2 ce_config
3234 	 * 3 de_config
3235 	 * 4 gc_config
3236 	 * 5 gamma_table
3237 	 * 6 ctc_table
3238 	 * 7 dvs_coefs
3239 	 */
3240 }
3241 
3242 static unsigned int long copy_from_compatible(void *to, const void *from,
3243 	unsigned long n, bool from_user)
3244 {
3245 	if (from_user)
3246 		return copy_from_user(to, (void __user *)from, n);
3247 	else
3248 		memcpy(to, from, n);
3249 	return 0;
3250 }
3251 
3252 int atomisp_cp_general_isp_parameters(struct atomisp_sub_device *asd,
3253 				      struct atomisp_parameters *arg,
3254 				      struct atomisp_css_params *css_param,
3255 				      bool from_user)
3256 {
3257 	struct atomisp_parameters *cur_config = &css_param->update_flag;
3258 
3259 	if (!arg || !asd || !css_param)
3260 		return -EINVAL;
3261 
3262 	if (arg->wb_config && (from_user || !cur_config->wb_config)) {
3263 		if (copy_from_compatible(&css_param->wb_config, arg->wb_config,
3264 					 sizeof(struct ia_css_wb_config),
3265 					 from_user))
3266 			return -EFAULT;
3267 		css_param->update_flag.wb_config =
3268 		    (struct atomisp_wb_config *)&css_param->wb_config;
3269 	}
3270 
3271 	if (arg->ob_config && (from_user || !cur_config->ob_config)) {
3272 		if (copy_from_compatible(&css_param->ob_config, arg->ob_config,
3273 					 sizeof(struct ia_css_ob_config),
3274 					 from_user))
3275 			return -EFAULT;
3276 		css_param->update_flag.ob_config =
3277 		    (struct atomisp_ob_config *)&css_param->ob_config;
3278 	}
3279 
3280 	if (arg->dp_config && (from_user || !cur_config->dp_config)) {
3281 		if (copy_from_compatible(&css_param->dp_config, arg->dp_config,
3282 					 sizeof(struct ia_css_dp_config),
3283 					 from_user))
3284 			return -EFAULT;
3285 		css_param->update_flag.dp_config =
3286 		    (struct atomisp_dp_config *)&css_param->dp_config;
3287 	}
3288 
3289 	if (asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
3290 		if (arg->dz_config && (from_user || !cur_config->dz_config)) {
3291 			if (copy_from_compatible(&css_param->dz_config,
3292 						 arg->dz_config,
3293 						 sizeof(struct ia_css_dz_config),
3294 						 from_user))
3295 				return -EFAULT;
3296 			if (!atomisp_check_zoom_region(asd,
3297 						       &css_param->dz_config)) {
3298 				dev_err(asd->isp->dev, "crop region error!");
3299 				return -EINVAL;
3300 			}
3301 			css_param->update_flag.dz_config =
3302 			    (struct atomisp_dz_config *)
3303 			    &css_param->dz_config;
3304 		}
3305 	}
3306 
3307 	if (arg->nr_config && (from_user || !cur_config->nr_config)) {
3308 		if (copy_from_compatible(&css_param->nr_config, arg->nr_config,
3309 					 sizeof(struct ia_css_nr_config),
3310 					 from_user))
3311 			return -EFAULT;
3312 		css_param->update_flag.nr_config =
3313 		    (struct atomisp_nr_config *)&css_param->nr_config;
3314 	}
3315 
3316 	if (arg->ee_config && (from_user || !cur_config->ee_config)) {
3317 		if (copy_from_compatible(&css_param->ee_config, arg->ee_config,
3318 					 sizeof(struct ia_css_ee_config),
3319 					 from_user))
3320 			return -EFAULT;
3321 		css_param->update_flag.ee_config =
3322 		    (struct atomisp_ee_config *)&css_param->ee_config;
3323 	}
3324 
3325 	if (arg->tnr_config && (from_user || !cur_config->tnr_config)) {
3326 		if (copy_from_compatible(&css_param->tnr_config,
3327 					 arg->tnr_config,
3328 					 sizeof(struct ia_css_tnr_config),
3329 					 from_user))
3330 			return -EFAULT;
3331 		css_param->update_flag.tnr_config =
3332 		    (struct atomisp_tnr_config *)
3333 		    &css_param->tnr_config;
3334 	}
3335 
3336 	if (arg->a3a_config && (from_user || !cur_config->a3a_config)) {
3337 		if (copy_from_compatible(&css_param->s3a_config,
3338 					 arg->a3a_config,
3339 					 sizeof(struct ia_css_3a_config),
3340 					 from_user))
3341 			return -EFAULT;
3342 		css_param->update_flag.a3a_config =
3343 		    (struct atomisp_3a_config *)&css_param->s3a_config;
3344 	}
3345 
3346 	if (arg->ctc_config && (from_user || !cur_config->ctc_config)) {
3347 		if (copy_from_compatible(&css_param->ctc_config,
3348 					 arg->ctc_config,
3349 					 sizeof(struct ia_css_ctc_config),
3350 					 from_user))
3351 			return -EFAULT;
3352 		css_param->update_flag.ctc_config =
3353 		    (struct atomisp_ctc_config *)
3354 		    &css_param->ctc_config;
3355 	}
3356 
3357 	if (arg->cnr_config && (from_user || !cur_config->cnr_config)) {
3358 		if (copy_from_compatible(&css_param->cnr_config,
3359 					 arg->cnr_config,
3360 					 sizeof(struct ia_css_cnr_config),
3361 					 from_user))
3362 			return -EFAULT;
3363 		css_param->update_flag.cnr_config =
3364 		    (struct atomisp_cnr_config *)
3365 		    &css_param->cnr_config;
3366 	}
3367 
3368 	if (arg->ecd_config && (from_user || !cur_config->ecd_config)) {
3369 		if (copy_from_compatible(&css_param->ecd_config,
3370 					 arg->ecd_config,
3371 					 sizeof(struct ia_css_ecd_config),
3372 					 from_user))
3373 			return -EFAULT;
3374 		css_param->update_flag.ecd_config =
3375 		    (struct atomisp_ecd_config *)
3376 		    &css_param->ecd_config;
3377 	}
3378 
3379 	if (arg->ynr_config && (from_user || !cur_config->ynr_config)) {
3380 		if (copy_from_compatible(&css_param->ynr_config,
3381 					 arg->ynr_config,
3382 					 sizeof(struct ia_css_ynr_config),
3383 					 from_user))
3384 			return -EFAULT;
3385 		css_param->update_flag.ynr_config =
3386 		    (struct atomisp_ynr_config *)
3387 		    &css_param->ynr_config;
3388 	}
3389 
3390 	if (arg->fc_config && (from_user || !cur_config->fc_config)) {
3391 		if (copy_from_compatible(&css_param->fc_config,
3392 					 arg->fc_config,
3393 					 sizeof(struct ia_css_fc_config),
3394 					 from_user))
3395 			return -EFAULT;
3396 		css_param->update_flag.fc_config =
3397 		    (struct atomisp_fc_config *)&css_param->fc_config;
3398 	}
3399 
3400 	if (arg->macc_config && (from_user || !cur_config->macc_config)) {
3401 		if (copy_from_compatible(&css_param->macc_config,
3402 					 arg->macc_config,
3403 					 sizeof(struct ia_css_macc_config),
3404 					 from_user))
3405 			return -EFAULT;
3406 		css_param->update_flag.macc_config =
3407 		    (struct atomisp_macc_config *)
3408 		    &css_param->macc_config;
3409 	}
3410 
3411 	if (arg->aa_config && (from_user || !cur_config->aa_config)) {
3412 		if (copy_from_compatible(&css_param->aa_config, arg->aa_config,
3413 					 sizeof(struct ia_css_aa_config),
3414 					 from_user))
3415 			return -EFAULT;
3416 		css_param->update_flag.aa_config =
3417 		    (struct atomisp_aa_config *)&css_param->aa_config;
3418 	}
3419 
3420 	if (arg->anr_config && (from_user || !cur_config->anr_config)) {
3421 		if (copy_from_compatible(&css_param->anr_config,
3422 					 arg->anr_config,
3423 					 sizeof(struct ia_css_anr_config),
3424 					 from_user))
3425 			return -EFAULT;
3426 		css_param->update_flag.anr_config =
3427 		    (struct atomisp_anr_config *)
3428 		    &css_param->anr_config;
3429 	}
3430 
3431 	if (arg->xnr_config && (from_user || !cur_config->xnr_config)) {
3432 		if (copy_from_compatible(&css_param->xnr_config,
3433 					 arg->xnr_config,
3434 					 sizeof(struct ia_css_xnr_config),
3435 					 from_user))
3436 			return -EFAULT;
3437 		css_param->update_flag.xnr_config =
3438 		    (struct atomisp_xnr_config *)
3439 		    &css_param->xnr_config;
3440 	}
3441 
3442 	if (arg->yuv2rgb_cc_config &&
3443 	    (from_user || !cur_config->yuv2rgb_cc_config)) {
3444 		if (copy_from_compatible(&css_param->yuv2rgb_cc_config,
3445 					 arg->yuv2rgb_cc_config,
3446 					 sizeof(struct ia_css_cc_config),
3447 					 from_user))
3448 			return -EFAULT;
3449 		css_param->update_flag.yuv2rgb_cc_config =
3450 		    (struct atomisp_cc_config *)
3451 		    &css_param->yuv2rgb_cc_config;
3452 	}
3453 
3454 	if (arg->rgb2yuv_cc_config &&
3455 	    (from_user || !cur_config->rgb2yuv_cc_config)) {
3456 		if (copy_from_compatible(&css_param->rgb2yuv_cc_config,
3457 					 arg->rgb2yuv_cc_config,
3458 					 sizeof(struct ia_css_cc_config),
3459 					 from_user))
3460 			return -EFAULT;
3461 		css_param->update_flag.rgb2yuv_cc_config =
3462 		    (struct atomisp_cc_config *)
3463 		    &css_param->rgb2yuv_cc_config;
3464 	}
3465 
3466 	if (arg->macc_table && (from_user || !cur_config->macc_table)) {
3467 		if (copy_from_compatible(&css_param->macc_table,
3468 					 arg->macc_table,
3469 					 sizeof(struct ia_css_macc_table),
3470 					 from_user))
3471 			return -EFAULT;
3472 		css_param->update_flag.macc_table =
3473 		    (struct atomisp_macc_table *)
3474 		    &css_param->macc_table;
3475 	}
3476 
3477 	if (arg->xnr_table && (from_user || !cur_config->xnr_table)) {
3478 		if (copy_from_compatible(&css_param->xnr_table,
3479 					 arg->xnr_table,
3480 					 sizeof(struct ia_css_xnr_table),
3481 					 from_user))
3482 			return -EFAULT;
3483 		css_param->update_flag.xnr_table =
3484 		    (struct atomisp_xnr_table *)&css_param->xnr_table;
3485 	}
3486 
3487 	if (arg->r_gamma_table && (from_user || !cur_config->r_gamma_table)) {
3488 		if (copy_from_compatible(&css_param->r_gamma_table,
3489 					 arg->r_gamma_table,
3490 					 sizeof(struct ia_css_rgb_gamma_table),
3491 					 from_user))
3492 			return -EFAULT;
3493 		css_param->update_flag.r_gamma_table =
3494 		    (struct atomisp_rgb_gamma_table *)
3495 		    &css_param->r_gamma_table;
3496 	}
3497 
3498 	if (arg->g_gamma_table && (from_user || !cur_config->g_gamma_table)) {
3499 		if (copy_from_compatible(&css_param->g_gamma_table,
3500 					 arg->g_gamma_table,
3501 					 sizeof(struct ia_css_rgb_gamma_table),
3502 					 from_user))
3503 			return -EFAULT;
3504 		css_param->update_flag.g_gamma_table =
3505 		    (struct atomisp_rgb_gamma_table *)
3506 		    &css_param->g_gamma_table;
3507 	}
3508 
3509 	if (arg->b_gamma_table && (from_user || !cur_config->b_gamma_table)) {
3510 		if (copy_from_compatible(&css_param->b_gamma_table,
3511 					 arg->b_gamma_table,
3512 					 sizeof(struct ia_css_rgb_gamma_table),
3513 					 from_user))
3514 			return -EFAULT;
3515 		css_param->update_flag.b_gamma_table =
3516 		    (struct atomisp_rgb_gamma_table *)
3517 		    &css_param->b_gamma_table;
3518 	}
3519 
3520 	if (arg->anr_thres && (from_user || !cur_config->anr_thres)) {
3521 		if (copy_from_compatible(&css_param->anr_thres, arg->anr_thres,
3522 					 sizeof(struct ia_css_anr_thres),
3523 					 from_user))
3524 			return -EFAULT;
3525 		css_param->update_flag.anr_thres =
3526 		    (struct atomisp_anr_thres *)&css_param->anr_thres;
3527 	}
3528 
3529 	if (from_user)
3530 		css_param->isp_config_id = arg->isp_config_id;
3531 	/*
3532 	 * These configurations are on used by ISP1.x, not for ISP2.x,
3533 	 * so do not handle them. see comments of ia_css_isp_config.
3534 	 * 1 cc_config
3535 	 * 2 ce_config
3536 	 * 3 de_config
3537 	 * 4 gc_config
3538 	 * 5 gamma_table
3539 	 * 6 ctc_table
3540 	 * 7 dvs_coefs
3541 	 */
3542 	return 0;
3543 }
3544 
3545 int atomisp_cp_lsc_table(struct atomisp_sub_device *asd,
3546 			 struct atomisp_shading_table *source_st,
3547 			 struct atomisp_css_params *css_param,
3548 			 bool from_user)
3549 {
3550 	unsigned int i;
3551 	unsigned int len_table;
3552 	struct ia_css_shading_table *shading_table;
3553 	struct ia_css_shading_table *old_table;
3554 	struct atomisp_shading_table *st, dest_st;
3555 
3556 	if (!source_st)
3557 		return 0;
3558 
3559 	if (!css_param)
3560 		return -EINVAL;
3561 
3562 	if (!from_user && css_param->update_flag.shading_table)
3563 		return 0;
3564 
3565 	if (IS_ISP2401) {
3566 		if (copy_from_compatible(&dest_st, source_st,
3567 					sizeof(struct atomisp_shading_table),
3568 					from_user)) {
3569 			dev_err(asd->isp->dev, "copy shading table failed!");
3570 			return -EFAULT;
3571 		}
3572 		st = &dest_st;
3573 	} else {
3574 		st = source_st;
3575 	}
3576 
3577 	old_table = css_param->shading_table;
3578 
3579 	/* user config is to disable the shading table. */
3580 	if (!st->enable) {
3581 		/* Generate a minimum table with enable = 0. */
3582 		shading_table = atomisp_css_shading_table_alloc(1, 1);
3583 		if (!shading_table)
3584 			return -ENOMEM;
3585 		shading_table->enable = 0;
3586 		goto set_lsc;
3587 	}
3588 
3589 	/* Setting a new table. Validate first - all tables must be set */
3590 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
3591 		if (!st->data[i]) {
3592 			dev_err(asd->isp->dev, "shading table validate failed");
3593 			return -EINVAL;
3594 		}
3595 	}
3596 
3597 	/* Shading table size per color */
3598 	if (st->width > SH_CSS_MAX_SCTBL_WIDTH_PER_COLOR ||
3599 	    st->height > SH_CSS_MAX_SCTBL_HEIGHT_PER_COLOR) {
3600 		dev_err(asd->isp->dev, "shading table w/h validate failed!");
3601 		return -EINVAL;
3602 	}
3603 
3604 	shading_table = atomisp_css_shading_table_alloc(st->width, st->height);
3605 	if (!shading_table)
3606 		return -ENOMEM;
3607 
3608 	len_table = st->width * st->height * ATOMISP_SC_TYPE_SIZE;
3609 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
3610 		if (copy_from_compatible(shading_table->data[i],
3611 					 st->data[i], len_table, from_user)) {
3612 			atomisp_css_shading_table_free(shading_table);
3613 			return -EFAULT;
3614 		}
3615 	}
3616 	shading_table->sensor_width = st->sensor_width;
3617 	shading_table->sensor_height = st->sensor_height;
3618 	shading_table->fraction_bits = st->fraction_bits;
3619 	shading_table->enable = st->enable;
3620 
3621 	/* No need to update shading table if it is the same */
3622 	if (old_table &&
3623 	    old_table->sensor_width == shading_table->sensor_width &&
3624 	    old_table->sensor_height == shading_table->sensor_height &&
3625 	    old_table->width == shading_table->width &&
3626 	    old_table->height == shading_table->height &&
3627 	    old_table->fraction_bits == shading_table->fraction_bits &&
3628 	    old_table->enable == shading_table->enable) {
3629 		bool data_is_same = true;
3630 
3631 		for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
3632 			if (memcmp(shading_table->data[i], old_table->data[i],
3633 				   len_table) != 0) {
3634 				data_is_same = false;
3635 				break;
3636 			}
3637 		}
3638 
3639 		if (data_is_same) {
3640 			atomisp_css_shading_table_free(shading_table);
3641 			return 0;
3642 		}
3643 	}
3644 
3645 set_lsc:
3646 	/* set LSC to CSS */
3647 	css_param->shading_table = shading_table;
3648 	css_param->update_flag.shading_table = (struct atomisp_shading_table *)shading_table;
3649 	asd->params.sc_en = shading_table;
3650 
3651 	if (old_table)
3652 		atomisp_css_shading_table_free(old_table);
3653 
3654 	return 0;
3655 }
3656 
3657 int atomisp_css_cp_dvs2_coefs(struct atomisp_sub_device *asd,
3658 			      struct ia_css_dvs2_coefficients *coefs,
3659 			      struct atomisp_css_params *css_param,
3660 			      bool from_user)
3661 {
3662 	struct ia_css_dvs_grid_info *cur =
3663 	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
3664 	int dvs_hor_coef_bytes, dvs_ver_coef_bytes;
3665 	struct ia_css_dvs2_coefficients dvs2_coefs;
3666 
3667 	if (!coefs || !cur)
3668 		return 0;
3669 
3670 	if (!from_user && css_param->update_flag.dvs2_coefs)
3671 		return 0;
3672 
3673 	if (!IS_ISP2401) {
3674 		if (sizeof(*cur) != sizeof(coefs->grid) ||
3675 		    memcmp(&coefs->grid, cur, sizeof(coefs->grid))) {
3676 			dev_err(asd->isp->dev, "dvs grid mis-match!\n");
3677 			/* If the grid info in the argument differs from the current
3678 			grid info, we tell the caller to reset the grid size and
3679 			try again. */
3680 			return -EAGAIN;
3681 		}
3682 
3683 		if (!coefs->hor_coefs.odd_real ||
3684 		    !coefs->hor_coefs.odd_imag ||
3685 		    !coefs->hor_coefs.even_real ||
3686 		    !coefs->hor_coefs.even_imag ||
3687 		    !coefs->ver_coefs.odd_real ||
3688 		    !coefs->ver_coefs.odd_imag ||
3689 		    !coefs->ver_coefs.even_real ||
3690 		    !coefs->ver_coefs.even_imag)
3691 			return -EINVAL;
3692 
3693 		if (!css_param->dvs2_coeff) {
3694 			/* DIS coefficients. */
3695 			css_param->dvs2_coeff = ia_css_dvs2_coefficients_allocate(cur);
3696 			if (!css_param->dvs2_coeff)
3697 				return -ENOMEM;
3698 		}
3699 
3700 		dvs_hor_coef_bytes = asd->params.dvs_hor_coef_bytes;
3701 		dvs_ver_coef_bytes = asd->params.dvs_ver_coef_bytes;
3702 		if (copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_real,
3703 					coefs->hor_coefs.odd_real, dvs_hor_coef_bytes, from_user) ||
3704 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_imag,
3705 					coefs->hor_coefs.odd_imag, dvs_hor_coef_bytes, from_user) ||
3706 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_real,
3707 					coefs->hor_coefs.even_real, dvs_hor_coef_bytes, from_user) ||
3708 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_imag,
3709 					coefs->hor_coefs.even_imag, dvs_hor_coef_bytes, from_user) ||
3710 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_real,
3711 					coefs->ver_coefs.odd_real, dvs_ver_coef_bytes, from_user) ||
3712 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_imag,
3713 					coefs->ver_coefs.odd_imag, dvs_ver_coef_bytes, from_user) ||
3714 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_real,
3715 					coefs->ver_coefs.even_real, dvs_ver_coef_bytes, from_user) ||
3716 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_imag,
3717 					coefs->ver_coefs.even_imag, dvs_ver_coef_bytes, from_user)) {
3718 			ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
3719 			css_param->dvs2_coeff = NULL;
3720 			return -EFAULT;
3721 		}
3722 	} else {
3723 		if (copy_from_compatible(&dvs2_coefs, coefs,
3724 					sizeof(struct ia_css_dvs2_coefficients),
3725 					from_user)) {
3726 			dev_err(asd->isp->dev, "copy dvs2 coef failed");
3727 			return -EFAULT;
3728 		}
3729 
3730 		if (sizeof(*cur) != sizeof(dvs2_coefs.grid) ||
3731 		    memcmp(&dvs2_coefs.grid, cur, sizeof(dvs2_coefs.grid))) {
3732 			dev_err(asd->isp->dev, "dvs grid mis-match!\n");
3733 			/* If the grid info in the argument differs from the current
3734 			grid info, we tell the caller to reset the grid size and
3735 			try again. */
3736 			return -EAGAIN;
3737 		}
3738 
3739 		if (!dvs2_coefs.hor_coefs.odd_real ||
3740 		    !dvs2_coefs.hor_coefs.odd_imag ||
3741 		    !dvs2_coefs.hor_coefs.even_real ||
3742 		    !dvs2_coefs.hor_coefs.even_imag ||
3743 		    !dvs2_coefs.ver_coefs.odd_real ||
3744 		    !dvs2_coefs.ver_coefs.odd_imag ||
3745 		    !dvs2_coefs.ver_coefs.even_real ||
3746 		    !dvs2_coefs.ver_coefs.even_imag)
3747 			return -EINVAL;
3748 
3749 		if (!css_param->dvs2_coeff) {
3750 			/* DIS coefficients. */
3751 			css_param->dvs2_coeff = ia_css_dvs2_coefficients_allocate(cur);
3752 			if (!css_param->dvs2_coeff)
3753 				return -ENOMEM;
3754 		}
3755 
3756 		dvs_hor_coef_bytes = asd->params.dvs_hor_coef_bytes;
3757 		dvs_ver_coef_bytes = asd->params.dvs_ver_coef_bytes;
3758 		if (copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_real,
3759 					dvs2_coefs.hor_coefs.odd_real, dvs_hor_coef_bytes, from_user) ||
3760 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_imag,
3761 					dvs2_coefs.hor_coefs.odd_imag, dvs_hor_coef_bytes, from_user) ||
3762 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_real,
3763 					dvs2_coefs.hor_coefs.even_real, dvs_hor_coef_bytes, from_user) ||
3764 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_imag,
3765 					dvs2_coefs.hor_coefs.even_imag, dvs_hor_coef_bytes, from_user) ||
3766 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_real,
3767 					dvs2_coefs.ver_coefs.odd_real, dvs_ver_coef_bytes, from_user) ||
3768 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_imag,
3769 					dvs2_coefs.ver_coefs.odd_imag, dvs_ver_coef_bytes, from_user) ||
3770 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_real,
3771 					dvs2_coefs.ver_coefs.even_real, dvs_ver_coef_bytes, from_user) ||
3772 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_imag,
3773 					dvs2_coefs.ver_coefs.even_imag, dvs_ver_coef_bytes, from_user)) {
3774 			ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
3775 			css_param->dvs2_coeff = NULL;
3776 			return -EFAULT;
3777 		}
3778 	}
3779 
3780 	css_param->update_flag.dvs2_coefs =
3781 	    (struct atomisp_dis_coefficients *)css_param->dvs2_coeff;
3782 	return 0;
3783 }
3784 
3785 int atomisp_cp_dvs_6axis_config(struct atomisp_sub_device *asd,
3786 				struct atomisp_dvs_6axis_config *source_6axis_config,
3787 				struct atomisp_css_params *css_param,
3788 				bool from_user)
3789 {
3790 	struct ia_css_dvs_6axis_config *dvs_6axis_config;
3791 	struct ia_css_dvs_6axis_config *old_6axis_config;
3792 	struct ia_css_stream *stream =
3793 		    asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream;
3794 	struct ia_css_dvs_grid_info *dvs_grid_info =
3795 	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
3796 	int ret = -EFAULT;
3797 
3798 	if (!stream) {
3799 		dev_err(asd->isp->dev, "%s: internal error!", __func__);
3800 		return -EINVAL;
3801 	}
3802 
3803 	if (!source_6axis_config || !dvs_grid_info)
3804 		return 0;
3805 
3806 	if (!dvs_grid_info->enable)
3807 		return 0;
3808 
3809 	if (!from_user && css_param->update_flag.dvs_6axis_config)
3810 		return 0;
3811 
3812 	/* check whether need to reallocate for 6 axis config */
3813 	old_6axis_config = css_param->dvs_6axis;
3814 	dvs_6axis_config = old_6axis_config;
3815 
3816 	if (IS_ISP2401) {
3817 		struct ia_css_dvs_6axis_config t_6axis_config;
3818 
3819 		if (copy_from_compatible(&t_6axis_config, source_6axis_config,
3820 					sizeof(struct atomisp_dvs_6axis_config),
3821 					from_user)) {
3822 			dev_err(asd->isp->dev, "copy morph table failed!");
3823 			return -EFAULT;
3824 		}
3825 
3826 		if (old_6axis_config &&
3827 		    (old_6axis_config->width_y != t_6axis_config.width_y ||
3828 		    old_6axis_config->height_y != t_6axis_config.height_y ||
3829 		    old_6axis_config->width_uv != t_6axis_config.width_uv ||
3830 		    old_6axis_config->height_uv != t_6axis_config.height_uv)) {
3831 			ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
3832 			css_param->dvs_6axis = NULL;
3833 
3834 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
3835 			if (!dvs_6axis_config)
3836 				return -ENOMEM;
3837 		} else if (!dvs_6axis_config) {
3838 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
3839 			if (!dvs_6axis_config)
3840 				return -ENOMEM;
3841 		}
3842 
3843 		dvs_6axis_config->exp_id = t_6axis_config.exp_id;
3844 
3845 		if (copy_from_compatible(dvs_6axis_config->xcoords_y,
3846 					t_6axis_config.xcoords_y,
3847 					t_6axis_config.width_y *
3848 					t_6axis_config.height_y *
3849 					sizeof(*dvs_6axis_config->xcoords_y),
3850 					from_user))
3851 			goto error;
3852 		if (copy_from_compatible(dvs_6axis_config->ycoords_y,
3853 					t_6axis_config.ycoords_y,
3854 					t_6axis_config.width_y *
3855 					t_6axis_config.height_y *
3856 					sizeof(*dvs_6axis_config->ycoords_y),
3857 					from_user))
3858 			goto error;
3859 		if (copy_from_compatible(dvs_6axis_config->xcoords_uv,
3860 					t_6axis_config.xcoords_uv,
3861 					t_6axis_config.width_uv *
3862 					t_6axis_config.height_uv *
3863 					sizeof(*dvs_6axis_config->xcoords_uv),
3864 					from_user))
3865 			goto error;
3866 		if (copy_from_compatible(dvs_6axis_config->ycoords_uv,
3867 					t_6axis_config.ycoords_uv,
3868 					t_6axis_config.width_uv *
3869 					t_6axis_config.height_uv *
3870 					sizeof(*dvs_6axis_config->ycoords_uv),
3871 					from_user))
3872 			goto error;
3873 	} else {
3874 		if (old_6axis_config &&
3875 		    (old_6axis_config->width_y != source_6axis_config->width_y ||
3876 		    old_6axis_config->height_y != source_6axis_config->height_y ||
3877 		    old_6axis_config->width_uv != source_6axis_config->width_uv ||
3878 		    old_6axis_config->height_uv != source_6axis_config->height_uv)) {
3879 			ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
3880 			css_param->dvs_6axis = NULL;
3881 
3882 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
3883 			if (!dvs_6axis_config)
3884 				return -ENOMEM;
3885 		} else if (!dvs_6axis_config) {
3886 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
3887 			if (!dvs_6axis_config)
3888 				return -ENOMEM;
3889 		}
3890 
3891 		dvs_6axis_config->exp_id = source_6axis_config->exp_id;
3892 
3893 		if (copy_from_compatible(dvs_6axis_config->xcoords_y,
3894 					source_6axis_config->xcoords_y,
3895 					source_6axis_config->width_y *
3896 					source_6axis_config->height_y *
3897 					sizeof(*source_6axis_config->xcoords_y),
3898 					from_user))
3899 			goto error;
3900 		if (copy_from_compatible(dvs_6axis_config->ycoords_y,
3901 					source_6axis_config->ycoords_y,
3902 					source_6axis_config->width_y *
3903 					source_6axis_config->height_y *
3904 					sizeof(*source_6axis_config->ycoords_y),
3905 					from_user))
3906 			goto error;
3907 		if (copy_from_compatible(dvs_6axis_config->xcoords_uv,
3908 					source_6axis_config->xcoords_uv,
3909 					source_6axis_config->width_uv *
3910 					source_6axis_config->height_uv *
3911 					sizeof(*source_6axis_config->xcoords_uv),
3912 					from_user))
3913 			goto error;
3914 		if (copy_from_compatible(dvs_6axis_config->ycoords_uv,
3915 					source_6axis_config->ycoords_uv,
3916 					source_6axis_config->width_uv *
3917 					source_6axis_config->height_uv *
3918 					sizeof(*source_6axis_config->ycoords_uv),
3919 					from_user))
3920 			goto error;
3921 	}
3922 	css_param->dvs_6axis = dvs_6axis_config;
3923 	css_param->update_flag.dvs_6axis_config =
3924 	    (struct atomisp_dvs_6axis_config *)dvs_6axis_config;
3925 	return 0;
3926 
3927 error:
3928 	if (dvs_6axis_config)
3929 		ia_css_dvs2_6axis_config_free(dvs_6axis_config);
3930 	return ret;
3931 }
3932 
3933 int atomisp_cp_morph_table(struct atomisp_sub_device *asd,
3934 			   struct atomisp_morph_table *source_morph_table,
3935 			   struct atomisp_css_params *css_param,
3936 			   bool from_user)
3937 {
3938 	int ret = -EFAULT;
3939 	unsigned int i;
3940 	struct ia_css_morph_table *morph_table;
3941 	struct ia_css_morph_table *old_morph_table;
3942 
3943 	if (!source_morph_table)
3944 		return 0;
3945 
3946 	if (!from_user && css_param->update_flag.morph_table)
3947 		return 0;
3948 
3949 	old_morph_table = css_param->morph_table;
3950 
3951 	if (IS_ISP2401) {
3952 		struct ia_css_morph_table mtbl;
3953 
3954 		if (copy_from_compatible(&mtbl, source_morph_table,
3955 				sizeof(struct atomisp_morph_table),
3956 				from_user)) {
3957 			dev_err(asd->isp->dev, "copy morph table failed!");
3958 			return -EFAULT;
3959 		}
3960 
3961 		morph_table = atomisp_css_morph_table_allocate(
3962 				mtbl.width,
3963 				mtbl.height);
3964 		if (!morph_table)
3965 			return -ENOMEM;
3966 
3967 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
3968 			if (copy_from_compatible(morph_table->coordinates_x[i],
3969 						(__force void *)source_morph_table->coordinates_x[i],
3970 						mtbl.height * mtbl.width *
3971 						sizeof(*morph_table->coordinates_x[i]),
3972 						from_user))
3973 				goto error;
3974 
3975 			if (copy_from_compatible(morph_table->coordinates_y[i],
3976 						(__force void *)source_morph_table->coordinates_y[i],
3977 						mtbl.height * mtbl.width *
3978 						sizeof(*morph_table->coordinates_y[i]),
3979 						from_user))
3980 				goto error;
3981 		}
3982 	} else {
3983 		morph_table = atomisp_css_morph_table_allocate(
3984 				source_morph_table->width,
3985 				source_morph_table->height);
3986 		if (!morph_table)
3987 			return -ENOMEM;
3988 
3989 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
3990 			if (copy_from_compatible(morph_table->coordinates_x[i],
3991 						(__force void *)source_morph_table->coordinates_x[i],
3992 						source_morph_table->height * source_morph_table->width *
3993 						sizeof(*source_morph_table->coordinates_x[i]),
3994 						from_user))
3995 				goto error;
3996 
3997 			if (copy_from_compatible(morph_table->coordinates_y[i],
3998 						(__force void *)source_morph_table->coordinates_y[i],
3999 						source_morph_table->height * source_morph_table->width *
4000 						sizeof(*source_morph_table->coordinates_y[i]),
4001 						from_user))
4002 				goto error;
4003 		}
4004 	}
4005 
4006 	css_param->morph_table = morph_table;
4007 	if (old_morph_table)
4008 		atomisp_css_morph_table_free(old_morph_table);
4009 	css_param->update_flag.morph_table =
4010 	    (struct atomisp_morph_table *)morph_table;
4011 	return 0;
4012 
4013 error:
4014 	if (morph_table)
4015 		atomisp_css_morph_table_free(morph_table);
4016 	return ret;
4017 }
4018 
4019 int atomisp_makeup_css_parameters(struct atomisp_sub_device *asd,
4020 				  struct atomisp_parameters *arg,
4021 				  struct atomisp_css_params *css_param)
4022 {
4023 	int ret;
4024 
4025 	ret = atomisp_cp_general_isp_parameters(asd, arg, css_param, false);
4026 	if (ret)
4027 		return ret;
4028 	ret = atomisp_cp_lsc_table(asd, arg->shading_table, css_param, false);
4029 	if (ret)
4030 		return ret;
4031 	ret = atomisp_cp_morph_table(asd, arg->morph_table, css_param, false);
4032 	if (ret)
4033 		return ret;
4034 	ret = atomisp_css_cp_dvs2_coefs(asd,
4035 					(struct ia_css_dvs2_coefficients *)arg->dvs2_coefs,
4036 					css_param, false);
4037 	if (ret)
4038 		return ret;
4039 	ret = atomisp_cp_dvs_6axis_config(asd, arg->dvs_6axis_config,
4040 					  css_param, false);
4041 	return ret;
4042 }
4043 
4044 void atomisp_free_css_parameters(struct atomisp_css_params *css_param)
4045 {
4046 	if (css_param->dvs_6axis) {
4047 		ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
4048 		css_param->dvs_6axis = NULL;
4049 	}
4050 	if (css_param->dvs2_coeff) {
4051 		ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
4052 		css_param->dvs2_coeff = NULL;
4053 	}
4054 	if (css_param->shading_table) {
4055 		ia_css_shading_table_free(css_param->shading_table);
4056 		css_param->shading_table = NULL;
4057 	}
4058 	if (css_param->morph_table) {
4059 		ia_css_morph_table_free(css_param->morph_table);
4060 		css_param->morph_table = NULL;
4061 	}
4062 }
4063 
4064 /*
4065  * Check parameter queue list and buffer queue list to find out if matched items
4066  * and then set parameter to CSS and enqueue buffer to CSS.
4067  * Of course, if the buffer in buffer waiting list is not bound to a per-frame
4068  * parameter, it will be enqueued into CSS as long as the per-frame setting
4069  * buffers before it get enqueued.
4070  */
4071 void atomisp_handle_parameter_and_buffer(struct atomisp_video_pipe *pipe)
4072 {
4073 	struct atomisp_sub_device *asd = pipe->asd;
4074 	struct videobuf_buffer *vb = NULL, *vb_tmp;
4075 	struct atomisp_css_params_with_list *param = NULL, *param_tmp;
4076 	struct videobuf_vmalloc_memory *vm_mem = NULL;
4077 	unsigned long irqflags;
4078 	bool need_to_enqueue_buffer = false;
4079 
4080 	if (!asd) {
4081 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
4082 			__func__, pipe->vdev.name);
4083 		return;
4084 	}
4085 
4086 	if (atomisp_is_vf_pipe(pipe))
4087 		return;
4088 
4089 	/*
4090 	 * CSS/FW requires set parameter and enqueue buffer happen after ISP
4091 	 * is streamon.
4092 	 */
4093 	if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
4094 		return;
4095 
4096 	if (list_empty(&pipe->per_frame_params) ||
4097 	    list_empty(&pipe->buffers_waiting_for_param))
4098 		return;
4099 
4100 	list_for_each_entry_safe(vb, vb_tmp,
4101 				 &pipe->buffers_waiting_for_param, queue) {
4102 		if (pipe->frame_request_config_id[vb->i]) {
4103 			list_for_each_entry_safe(param, param_tmp,
4104 						 &pipe->per_frame_params, list) {
4105 				if (pipe->frame_request_config_id[vb->i] !=
4106 				    param->params.isp_config_id)
4107 					continue;
4108 
4109 				list_del(&param->list);
4110 				list_del(&vb->queue);
4111 				/*
4112 				 * clear the request config id as the buffer
4113 				 * will be handled and enqueued into CSS soon
4114 				 */
4115 				pipe->frame_request_config_id[vb->i] = 0;
4116 				pipe->frame_params[vb->i] = param;
4117 				vm_mem = vb->priv;
4118 				BUG_ON(!vm_mem);
4119 				break;
4120 			}
4121 
4122 			if (vm_mem) {
4123 				spin_lock_irqsave(&pipe->irq_lock, irqflags);
4124 				list_add_tail(&vb->queue, &pipe->activeq);
4125 				spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
4126 				vm_mem = NULL;
4127 				need_to_enqueue_buffer = true;
4128 			} else {
4129 				/* The is the end, stop further loop */
4130 				break;
4131 			}
4132 		} else {
4133 			list_del(&vb->queue);
4134 			pipe->frame_params[vb->i] = NULL;
4135 			spin_lock_irqsave(&pipe->irq_lock, irqflags);
4136 			list_add_tail(&vb->queue, &pipe->activeq);
4137 			spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
4138 			need_to_enqueue_buffer = true;
4139 		}
4140 	}
4141 
4142 	if (!need_to_enqueue_buffer)
4143 		return;
4144 
4145 	atomisp_qbuffers_to_css(asd);
4146 
4147 	if (!IS_ISP2401) {
4148 		if (!atomisp_is_wdt_running(asd) && atomisp_buffers_queued(asd))
4149 			atomisp_wdt_start(asd);
4150 	} else {
4151 		if (atomisp_buffers_queued_pipe(pipe)) {
4152 			if (!atomisp_is_wdt_running(pipe))
4153 				atomisp_wdt_start_pipe(pipe);
4154 			else
4155 				atomisp_wdt_refresh_pipe(pipe,
4156 							ATOMISP_WDT_KEEP_CURRENT_DELAY);
4157 		}
4158 	}
4159 }
4160 
4161 /*
4162 * Function to configure ISP parameters
4163 */
4164 int atomisp_set_parameters(struct video_device *vdev,
4165 			   struct atomisp_parameters *arg)
4166 {
4167 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
4168 	struct atomisp_sub_device *asd = pipe->asd;
4169 	struct atomisp_css_params_with_list *param = NULL;
4170 	struct atomisp_css_params *css_param = &asd->params.css_param;
4171 	int ret;
4172 
4173 	if (!asd) {
4174 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
4175 			__func__, vdev->name);
4176 		return -EINVAL;
4177 	}
4178 
4179 	if (!asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream) {
4180 		dev_err(asd->isp->dev, "%s: internal error!\n", __func__);
4181 		return -EINVAL;
4182 	}
4183 
4184 	dev_dbg(asd->isp->dev,
4185 		"%s: set parameter(per_frame_setting %d) for asd%d with isp_config_id %d of %s\n",
4186 		__func__, arg->per_frame_setting, asd->index,
4187 		arg->isp_config_id, vdev->name);
4188 
4189 	if (IS_ISP2401) {
4190 		if (atomisp_is_vf_pipe(pipe) && arg->per_frame_setting) {
4191 			dev_err(asd->isp->dev, "%s: vf pipe not support per_frame_setting",
4192 				__func__);
4193 			return -EINVAL;
4194 		}
4195 	}
4196 
4197 	if (arg->per_frame_setting && !atomisp_is_vf_pipe(pipe)) {
4198 		/*
4199 		 * Per-frame setting enabled, we allocate a new parameter
4200 		 * buffer to cache the parameters and only when frame buffers
4201 		 * are ready, the parameters will be set to CSS.
4202 		 * per-frame setting only works for the main output frame.
4203 		 */
4204 		param = kvzalloc(sizeof(*param), GFP_KERNEL);
4205 		if (!param) {
4206 			dev_err(asd->isp->dev, "%s: failed to alloc params buffer\n",
4207 				__func__);
4208 			return -ENOMEM;
4209 		}
4210 		css_param = &param->params;
4211 	}
4212 
4213 	ret = atomisp_cp_general_isp_parameters(asd, arg, css_param, true);
4214 	if (ret)
4215 		goto apply_parameter_failed;
4216 
4217 	ret = atomisp_cp_lsc_table(asd, arg->shading_table, css_param, true);
4218 	if (ret)
4219 		goto apply_parameter_failed;
4220 
4221 	ret = atomisp_cp_morph_table(asd, arg->morph_table, css_param, true);
4222 	if (ret)
4223 		goto apply_parameter_failed;
4224 
4225 	ret = atomisp_css_cp_dvs2_coefs(asd,
4226 					(struct ia_css_dvs2_coefficients *)arg->dvs2_coefs,
4227 					css_param, true);
4228 	if (ret)
4229 		goto apply_parameter_failed;
4230 
4231 	ret = atomisp_cp_dvs_6axis_config(asd, arg->dvs_6axis_config,
4232 					  css_param, true);
4233 	if (ret)
4234 		goto apply_parameter_failed;
4235 
4236 	if (!(arg->per_frame_setting && !atomisp_is_vf_pipe(pipe))) {
4237 		/* indicate to CSS that we have parameters to be updated */
4238 		asd->params.css_update_params_needed = true;
4239 	} else {
4240 		list_add_tail(&param->list, &pipe->per_frame_params);
4241 		atomisp_handle_parameter_and_buffer(pipe);
4242 	}
4243 
4244 	return 0;
4245 
4246 apply_parameter_failed:
4247 	if (css_param)
4248 		atomisp_free_css_parameters(css_param);
4249 	kvfree(param);
4250 
4251 	return ret;
4252 }
4253 
4254 /*
4255  * Function to set/get isp parameters to isp
4256  */
4257 int atomisp_param(struct atomisp_sub_device *asd, int flag,
4258 		  struct atomisp_parm *config)
4259 {
4260 	struct ia_css_pipe_config *vp_cfg =
4261 		    &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].
4262 		    pipe_configs[IA_CSS_PIPE_ID_VIDEO];
4263 
4264 	/* Read parameter for 3A binary info */
4265 	if (flag == 0) {
4266 		struct ia_css_dvs_grid_info *dvs_grid_info =
4267 		    atomisp_css_get_dvs_grid_info(
4268 			&asd->params.curr_grid_info);
4269 
4270 		atomisp_curr_user_grid_info(asd, &config->info);
4271 
4272 		/* We always return the resolution and stride even if there is
4273 		 * no valid metadata. This allows the caller to get the
4274 		 * information needed to allocate user-space buffers. */
4275 		config->metadata_config.metadata_height = asd->
4276 			stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
4277 			metadata_info.resolution.height;
4278 		config->metadata_config.metadata_stride = asd->
4279 			stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
4280 			metadata_info.stride;
4281 
4282 		/* update dvs grid info */
4283 		if (dvs_grid_info)
4284 			memcpy(&config->dvs_grid,
4285 			       dvs_grid_info,
4286 			       sizeof(struct ia_css_dvs_grid_info));
4287 
4288 		if (asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
4289 			config->dvs_envelop.width = 0;
4290 			config->dvs_envelop.height = 0;
4291 			return 0;
4292 		}
4293 
4294 		/* update dvs envelop info */
4295 		if (!asd->continuous_mode->val) {
4296 			config->dvs_envelop.width = vp_cfg->dvs_envelope.width;
4297 			config->dvs_envelop.height =
4298 			    vp_cfg->dvs_envelope.height;
4299 		} else {
4300 			unsigned int dvs_w, dvs_h, dvs_w_max, dvs_h_max;
4301 
4302 			dvs_w = vp_cfg->bayer_ds_out_res.width -
4303 				vp_cfg->output_info[0].res.width;
4304 			dvs_h = vp_cfg->bayer_ds_out_res.height -
4305 				vp_cfg->output_info[0].res.height;
4306 			dvs_w_max = rounddown(
4307 					vp_cfg->output_info[0].res.width / 5,
4308 					ATOM_ISP_STEP_WIDTH);
4309 			dvs_h_max = rounddown(
4310 					vp_cfg->output_info[0].res.height / 5,
4311 					ATOM_ISP_STEP_HEIGHT);
4312 
4313 			config->dvs_envelop.width = min(dvs_w, dvs_w_max);
4314 			config->dvs_envelop.height = min(dvs_h, dvs_h_max);
4315 		}
4316 
4317 		return 0;
4318 	}
4319 
4320 	memcpy(&asd->params.css_param.wb_config, &config->wb_config,
4321 	       sizeof(struct ia_css_wb_config));
4322 	memcpy(&asd->params.css_param.ob_config, &config->ob_config,
4323 	       sizeof(struct ia_css_ob_config));
4324 	memcpy(&asd->params.css_param.dp_config, &config->dp_config,
4325 	       sizeof(struct ia_css_dp_config));
4326 	memcpy(&asd->params.css_param.de_config, &config->de_config,
4327 	       sizeof(struct ia_css_de_config));
4328 	memcpy(&asd->params.css_param.dz_config, &config->dz_config,
4329 	       sizeof(struct ia_css_dz_config));
4330 	memcpy(&asd->params.css_param.ce_config, &config->ce_config,
4331 	       sizeof(struct ia_css_ce_config));
4332 	memcpy(&asd->params.css_param.nr_config, &config->nr_config,
4333 	       sizeof(struct ia_css_nr_config));
4334 	memcpy(&asd->params.css_param.ee_config, &config->ee_config,
4335 	       sizeof(struct ia_css_ee_config));
4336 	memcpy(&asd->params.css_param.tnr_config, &config->tnr_config,
4337 	       sizeof(struct ia_css_tnr_config));
4338 
4339 	if (asd->params.color_effect == V4L2_COLORFX_NEGATIVE) {
4340 		asd->params.css_param.cc_config.matrix[3] = -config->cc_config.matrix[3];
4341 		asd->params.css_param.cc_config.matrix[4] = -config->cc_config.matrix[4];
4342 		asd->params.css_param.cc_config.matrix[5] = -config->cc_config.matrix[5];
4343 		asd->params.css_param.cc_config.matrix[6] = -config->cc_config.matrix[6];
4344 		asd->params.css_param.cc_config.matrix[7] = -config->cc_config.matrix[7];
4345 		asd->params.css_param.cc_config.matrix[8] = -config->cc_config.matrix[8];
4346 	}
4347 
4348 	if (asd->params.color_effect != V4L2_COLORFX_SEPIA &&
4349 	    asd->params.color_effect != V4L2_COLORFX_BW) {
4350 		memcpy(&asd->params.css_param.cc_config, &config->cc_config,
4351 		       sizeof(struct ia_css_cc_config));
4352 		asd->params.config.cc_config = &asd->params.css_param.cc_config;
4353 	}
4354 
4355 	asd->params.config.wb_config = &asd->params.css_param.wb_config;
4356 	asd->params.config.ob_config = &asd->params.css_param.ob_config;
4357 	asd->params.config.de_config = &asd->params.css_param.de_config;
4358 	asd->params.config.dz_config = &asd->params.css_param.dz_config;
4359 	asd->params.config.ce_config = &asd->params.css_param.ce_config;
4360 	asd->params.config.dp_config = &asd->params.css_param.dp_config;
4361 	asd->params.config.nr_config = &asd->params.css_param.nr_config;
4362 	asd->params.config.ee_config = &asd->params.css_param.ee_config;
4363 	asd->params.config.tnr_config = &asd->params.css_param.tnr_config;
4364 	asd->params.css_update_params_needed = true;
4365 
4366 	return 0;
4367 }
4368 
4369 /*
4370  * Function to configure color effect of the image
4371  */
4372 int atomisp_color_effect(struct atomisp_sub_device *asd, int flag,
4373 			 __s32 *effect)
4374 {
4375 	struct ia_css_cc_config *cc_config = NULL;
4376 	struct ia_css_macc_table *macc_table = NULL;
4377 	struct ia_css_ctc_table *ctc_table = NULL;
4378 	int ret = 0;
4379 	struct v4l2_control control;
4380 	struct atomisp_device *isp = asd->isp;
4381 
4382 	if (flag == 0) {
4383 		*effect = asd->params.color_effect;
4384 		return 0;
4385 	}
4386 
4387 	control.id = V4L2_CID_COLORFX;
4388 	control.value = *effect;
4389 	ret =
4390 	    v4l2_s_ctrl(NULL, isp->inputs[asd->input_curr].camera->ctrl_handler,
4391 			&control);
4392 	/*
4393 	 * if set color effect to sensor successfully, return
4394 	 * 0 directly.
4395 	 */
4396 	if (!ret) {
4397 		asd->params.color_effect = (u32)*effect;
4398 		return 0;
4399 	}
4400 
4401 	if (*effect == asd->params.color_effect)
4402 		return 0;
4403 
4404 	/*
4405 	 * isp_subdev->params.macc_en should be set to false.
4406 	 */
4407 	asd->params.macc_en = false;
4408 
4409 	switch (*effect) {
4410 	case V4L2_COLORFX_NONE:
4411 		macc_table = &asd->params.css_param.macc_table;
4412 		asd->params.macc_en = true;
4413 		break;
4414 	case V4L2_COLORFX_SEPIA:
4415 		cc_config = &sepia_cc_config;
4416 		break;
4417 	case V4L2_COLORFX_NEGATIVE:
4418 		cc_config = &nega_cc_config;
4419 		break;
4420 	case V4L2_COLORFX_BW:
4421 		cc_config = &mono_cc_config;
4422 		break;
4423 	case V4L2_COLORFX_SKY_BLUE:
4424 		macc_table = &blue_macc_table;
4425 		asd->params.macc_en = true;
4426 		break;
4427 	case V4L2_COLORFX_GRASS_GREEN:
4428 		macc_table = &green_macc_table;
4429 		asd->params.macc_en = true;
4430 		break;
4431 	case V4L2_COLORFX_SKIN_WHITEN_LOW:
4432 		macc_table = &skin_low_macc_table;
4433 		asd->params.macc_en = true;
4434 		break;
4435 	case V4L2_COLORFX_SKIN_WHITEN:
4436 		macc_table = &skin_medium_macc_table;
4437 		asd->params.macc_en = true;
4438 		break;
4439 	case V4L2_COLORFX_SKIN_WHITEN_HIGH:
4440 		macc_table = &skin_high_macc_table;
4441 		asd->params.macc_en = true;
4442 		break;
4443 	case V4L2_COLORFX_VIVID:
4444 		ctc_table = &vivid_ctc_table;
4445 		break;
4446 	default:
4447 		return -EINVAL;
4448 	}
4449 	atomisp_update_capture_mode(asd);
4450 
4451 	if (cc_config)
4452 		asd->params.config.cc_config = cc_config;
4453 	if (macc_table)
4454 		asd->params.config.macc_table = macc_table;
4455 	if (ctc_table)
4456 		atomisp_css_set_ctc_table(asd, ctc_table);
4457 	asd->params.color_effect = (u32)*effect;
4458 	asd->params.css_update_params_needed = true;
4459 	return 0;
4460 }
4461 
4462 /*
4463  * Function to configure bad pixel correction
4464  */
4465 int atomisp_bad_pixel(struct atomisp_sub_device *asd, int flag,
4466 		      __s32 *value)
4467 {
4468 	if (flag == 0) {
4469 		*value = asd->params.bad_pixel_en;
4470 		return 0;
4471 	}
4472 	asd->params.bad_pixel_en = !!*value;
4473 
4474 	return 0;
4475 }
4476 
4477 /*
4478  * Function to configure bad pixel correction params
4479  */
4480 int atomisp_bad_pixel_param(struct atomisp_sub_device *asd, int flag,
4481 			    struct atomisp_dp_config *config)
4482 {
4483 	if (flag == 0) {
4484 		/* Get bad pixel from current setup */
4485 		if (atomisp_css_get_dp_config(asd, config))
4486 			return -EINVAL;
4487 	} else {
4488 		/* Set bad pixel to isp parameters */
4489 		memcpy(&asd->params.css_param.dp_config, config,
4490 		       sizeof(asd->params.css_param.dp_config));
4491 		asd->params.config.dp_config = &asd->params.css_param.dp_config;
4492 		asd->params.css_update_params_needed = true;
4493 	}
4494 
4495 	return 0;
4496 }
4497 
4498 /*
4499  * Function to enable/disable video image stablization
4500  */
4501 int atomisp_video_stable(struct atomisp_sub_device *asd, int flag,
4502 			 __s32 *value)
4503 {
4504 	if (flag == 0)
4505 		*value = asd->params.video_dis_en;
4506 	else
4507 		asd->params.video_dis_en = !!*value;
4508 
4509 	return 0;
4510 }
4511 
4512 /*
4513  * Function to configure fixed pattern noise
4514  */
4515 int atomisp_fixed_pattern(struct atomisp_sub_device *asd, int flag,
4516 			  __s32 *value)
4517 {
4518 	if (flag == 0) {
4519 		*value = asd->params.fpn_en;
4520 		return 0;
4521 	}
4522 
4523 	if (*value == 0) {
4524 		asd->params.fpn_en = false;
4525 		return 0;
4526 	}
4527 
4528 	/* Add function to get black from from sensor with shutter off */
4529 	return 0;
4530 }
4531 
4532 static unsigned int
4533 atomisp_bytesperline_to_padded_width(unsigned int bytesperline,
4534 				     enum ia_css_frame_format format)
4535 {
4536 	switch (format) {
4537 	case IA_CSS_FRAME_FORMAT_UYVY:
4538 	case IA_CSS_FRAME_FORMAT_YUYV:
4539 	case IA_CSS_FRAME_FORMAT_RAW:
4540 	case IA_CSS_FRAME_FORMAT_RGB565:
4541 		return bytesperline / 2;
4542 	case IA_CSS_FRAME_FORMAT_RGBA888:
4543 		return bytesperline / 4;
4544 	/* The following cases could be removed, but we leave them
4545 	   in to document the formats that are included. */
4546 	case IA_CSS_FRAME_FORMAT_NV11:
4547 	case IA_CSS_FRAME_FORMAT_NV12:
4548 	case IA_CSS_FRAME_FORMAT_NV16:
4549 	case IA_CSS_FRAME_FORMAT_NV21:
4550 	case IA_CSS_FRAME_FORMAT_NV61:
4551 	case IA_CSS_FRAME_FORMAT_YV12:
4552 	case IA_CSS_FRAME_FORMAT_YV16:
4553 	case IA_CSS_FRAME_FORMAT_YUV420:
4554 	case IA_CSS_FRAME_FORMAT_YUV420_16:
4555 	case IA_CSS_FRAME_FORMAT_YUV422:
4556 	case IA_CSS_FRAME_FORMAT_YUV422_16:
4557 	case IA_CSS_FRAME_FORMAT_YUV444:
4558 	case IA_CSS_FRAME_FORMAT_YUV_LINE:
4559 	case IA_CSS_FRAME_FORMAT_PLANAR_RGB888:
4560 	case IA_CSS_FRAME_FORMAT_QPLANE6:
4561 	case IA_CSS_FRAME_FORMAT_BINARY_8:
4562 	default:
4563 		return bytesperline;
4564 	}
4565 }
4566 
4567 static int
4568 atomisp_v4l2_framebuffer_to_css_frame(const struct v4l2_framebuffer *arg,
4569 				      struct ia_css_frame **result)
4570 {
4571 	struct ia_css_frame *res = NULL;
4572 	unsigned int padded_width;
4573 	enum ia_css_frame_format sh_format;
4574 	char *tmp_buf = NULL;
4575 	int ret = 0;
4576 
4577 	sh_format = v4l2_fmt_to_sh_fmt(arg->fmt.pixelformat);
4578 	padded_width = atomisp_bytesperline_to_padded_width(
4579 			   arg->fmt.bytesperline, sh_format);
4580 
4581 	/* Note: the padded width on an ia_css_frame is in elements, not in
4582 	   bytes. The RAW frame we use here should always be a 16bit RAW
4583 	   frame. This is why we bytesperline/2 is equal to the padded with */
4584 	if (ia_css_frame_allocate(&res, arg->fmt.width, arg->fmt.height,
4585 				       sh_format, padded_width, 0)) {
4586 		ret = -ENOMEM;
4587 		goto err;
4588 	}
4589 
4590 	tmp_buf = vmalloc(arg->fmt.sizeimage);
4591 	if (!tmp_buf) {
4592 		ret = -ENOMEM;
4593 		goto err;
4594 	}
4595 	if (copy_from_user(tmp_buf, (void __user __force *)arg->base,
4596 			   arg->fmt.sizeimage)) {
4597 		ret = -EFAULT;
4598 		goto err;
4599 	}
4600 
4601 	if (hmm_store(res->data, tmp_buf, arg->fmt.sizeimage)) {
4602 		ret = -EINVAL;
4603 		goto err;
4604 	}
4605 
4606 err:
4607 	if (ret && res)
4608 		ia_css_frame_free(res);
4609 	vfree(tmp_buf);
4610 	if (ret == 0)
4611 		*result = res;
4612 	return ret;
4613 }
4614 
4615 /*
4616  * Function to configure fixed pattern noise table
4617  */
4618 int atomisp_fixed_pattern_table(struct atomisp_sub_device *asd,
4619 				struct v4l2_framebuffer *arg)
4620 {
4621 	struct ia_css_frame *raw_black_frame = NULL;
4622 	int ret;
4623 
4624 	if (!arg)
4625 		return -EINVAL;
4626 
4627 	ret = atomisp_v4l2_framebuffer_to_css_frame(arg, &raw_black_frame);
4628 	if (ret)
4629 		return ret;
4630 
4631 	if (sh_css_set_black_frame(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream,
4632 				   raw_black_frame) != 0)
4633 		return -ENOMEM;
4634 
4635 	ia_css_frame_free(raw_black_frame);
4636 	return ret;
4637 }
4638 
4639 /*
4640  * Function to configure false color correction
4641  */
4642 int atomisp_false_color(struct atomisp_sub_device *asd, int flag,
4643 			__s32 *value)
4644 {
4645 	/* Get nr config from current setup */
4646 	if (flag == 0) {
4647 		*value = asd->params.false_color;
4648 		return 0;
4649 	}
4650 
4651 	/* Set nr config to isp parameters */
4652 	if (*value) {
4653 		asd->params.config.de_config = NULL;
4654 	} else {
4655 		asd->params.css_param.de_config.pixelnoise = 0;
4656 		asd->params.config.de_config = &asd->params.css_param.de_config;
4657 	}
4658 	asd->params.css_update_params_needed = true;
4659 	asd->params.false_color = *value;
4660 	return 0;
4661 }
4662 
4663 /*
4664  * Function to configure bad pixel correction params
4665  */
4666 int atomisp_false_color_param(struct atomisp_sub_device *asd, int flag,
4667 			      struct atomisp_de_config *config)
4668 {
4669 	if (flag == 0) {
4670 		/* Get false color from current setup */
4671 		if (atomisp_css_get_de_config(asd, config))
4672 			return -EINVAL;
4673 	} else {
4674 		/* Set false color to isp parameters */
4675 		memcpy(&asd->params.css_param.de_config, config,
4676 		       sizeof(asd->params.css_param.de_config));
4677 		asd->params.config.de_config = &asd->params.css_param.de_config;
4678 		asd->params.css_update_params_needed = true;
4679 	}
4680 
4681 	return 0;
4682 }
4683 
4684 /*
4685  * Function to configure white balance params
4686  */
4687 int atomisp_white_balance_param(struct atomisp_sub_device *asd, int flag,
4688 				struct atomisp_wb_config *config)
4689 {
4690 	if (flag == 0) {
4691 		/* Get white balance from current setup */
4692 		if (atomisp_css_get_wb_config(asd, config))
4693 			return -EINVAL;
4694 	} else {
4695 		/* Set white balance to isp parameters */
4696 		memcpy(&asd->params.css_param.wb_config, config,
4697 		       sizeof(asd->params.css_param.wb_config));
4698 		asd->params.config.wb_config = &asd->params.css_param.wb_config;
4699 		asd->params.css_update_params_needed = true;
4700 	}
4701 
4702 	return 0;
4703 }
4704 
4705 int atomisp_3a_config_param(struct atomisp_sub_device *asd, int flag,
4706 			    struct atomisp_3a_config *config)
4707 {
4708 	struct atomisp_device *isp = asd->isp;
4709 
4710 	dev_dbg(isp->dev, ">%s %d\n", __func__, flag);
4711 
4712 	if (flag == 0) {
4713 		/* Get white balance from current setup */
4714 		if (atomisp_css_get_3a_config(asd, config))
4715 			return -EINVAL;
4716 	} else {
4717 		/* Set white balance to isp parameters */
4718 		memcpy(&asd->params.css_param.s3a_config, config,
4719 		       sizeof(asd->params.css_param.s3a_config));
4720 		asd->params.config.s3a_config = &asd->params.css_param.s3a_config;
4721 		asd->params.css_update_params_needed = true;
4722 	}
4723 
4724 	dev_dbg(isp->dev, "<%s %d\n", __func__, flag);
4725 	return 0;
4726 }
4727 
4728 /*
4729  * Function to setup digital zoom
4730  */
4731 int atomisp_digital_zoom(struct atomisp_sub_device *asd, int flag,
4732 			 __s32 *value)
4733 {
4734 	u32 zoom;
4735 	struct atomisp_device *isp = asd->isp;
4736 
4737 	unsigned int max_zoom = MRFLD_MAX_ZOOM_FACTOR;
4738 
4739 	if (flag == 0) {
4740 		atomisp_css_get_zoom_factor(asd, &zoom);
4741 		*value = max_zoom - zoom;
4742 	} else {
4743 		if (*value < 0)
4744 			return -EINVAL;
4745 
4746 		zoom = max_zoom - min_t(u32, max_zoom - 1, *value);
4747 		atomisp_css_set_zoom_factor(asd, zoom);
4748 
4749 		dev_dbg(isp->dev, "%s, zoom: %d\n", __func__, zoom);
4750 		asd->params.css_update_params_needed = true;
4751 	}
4752 
4753 	return 0;
4754 }
4755 
4756 /*
4757  * Function to get sensor specific info for current resolution,
4758  * which will be used for auto exposure conversion.
4759  */
4760 int atomisp_get_sensor_mode_data(struct atomisp_sub_device *asd,
4761 				 struct atomisp_sensor_mode_data *config)
4762 {
4763 	struct camera_mipi_info *mipi_info;
4764 	struct atomisp_device *isp = asd->isp;
4765 
4766 	mipi_info = atomisp_to_sensor_mipi_info(
4767 			isp->inputs[asd->input_curr].camera);
4768 	if (!mipi_info)
4769 		return -EINVAL;
4770 
4771 	memcpy(config, &mipi_info->data, sizeof(*config));
4772 	return 0;
4773 }
4774 
4775 static void __atomisp_update_stream_env(struct atomisp_sub_device *asd,
4776 					u16 stream_index, struct atomisp_input_stream_info *stream_info)
4777 {
4778 	int i;
4779 
4780 	/* assign virtual channel id return from sensor driver query */
4781 	asd->stream_env[stream_index].ch_id = stream_info->ch_id;
4782 	asd->stream_env[stream_index].isys_configs = stream_info->isys_configs;
4783 	for (i = 0; i < stream_info->isys_configs; i++) {
4784 		asd->stream_env[stream_index].isys_info[i].input_format =
4785 		    stream_info->isys_info[i].input_format;
4786 		asd->stream_env[stream_index].isys_info[i].width =
4787 		    stream_info->isys_info[i].width;
4788 		asd->stream_env[stream_index].isys_info[i].height =
4789 		    stream_info->isys_info[i].height;
4790 	}
4791 }
4792 
4793 static void __atomisp_init_stream_info(u16 stream_index,
4794 				       struct atomisp_input_stream_info *stream_info)
4795 {
4796 	int i;
4797 
4798 	stream_info->enable = 1;
4799 	stream_info->stream = stream_index;
4800 	stream_info->ch_id = 0;
4801 	stream_info->isys_configs = 0;
4802 	for (i = 0; i < MAX_STREAMS_PER_CHANNEL; i++) {
4803 		stream_info->isys_info[i].input_format = 0;
4804 		stream_info->isys_info[i].width = 0;
4805 		stream_info->isys_info[i].height = 0;
4806 	}
4807 }
4808 
4809 /* This function looks up the closest available resolution. */
4810 int atomisp_try_fmt(struct video_device *vdev, struct v4l2_pix_format *f,
4811 		    bool *res_overflow)
4812 {
4813 	struct atomisp_device *isp = video_get_drvdata(vdev);
4814 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
4815 	struct v4l2_subdev_pad_config pad_cfg;
4816 	struct v4l2_subdev_state pad_state = {
4817 		.pads = &pad_cfg
4818 		};
4819 	struct v4l2_subdev_format format = {
4820 		.which = V4L2_SUBDEV_FORMAT_TRY,
4821 	};
4822 
4823 	struct v4l2_mbus_framefmt *snr_mbus_fmt = &format.format;
4824 	const struct atomisp_format_bridge *fmt;
4825 	struct atomisp_input_stream_info *stream_info =
4826 	    (struct atomisp_input_stream_info *)snr_mbus_fmt->reserved;
4827 	u16 stream_index;
4828 	int source_pad = atomisp_subdev_source_pad(vdev);
4829 	int ret;
4830 
4831 	if (!asd) {
4832 		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
4833 			__func__, vdev->name);
4834 		return -EINVAL;
4835 	}
4836 
4837 	if (!isp->inputs[asd->input_curr].camera)
4838 		return -EINVAL;
4839 
4840 	stream_index = atomisp_source_pad_to_stream_id(asd, source_pad);
4841 	fmt = atomisp_get_format_bridge(f->pixelformat);
4842 	if (!fmt) {
4843 		dev_err(isp->dev, "unsupported pixelformat!\n");
4844 		fmt = atomisp_output_fmts;
4845 	}
4846 
4847 	if (f->width <= 0 || f->height <= 0)
4848 		return -EINVAL;
4849 
4850 	snr_mbus_fmt->code = fmt->mbus_code;
4851 	snr_mbus_fmt->width = f->width;
4852 	snr_mbus_fmt->height = f->height;
4853 
4854 	__atomisp_init_stream_info(stream_index, stream_info);
4855 
4856 	dev_dbg(isp->dev, "try_mbus_fmt: asking for %ux%u\n",
4857 		snr_mbus_fmt->width, snr_mbus_fmt->height);
4858 
4859 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
4860 			       pad, set_fmt, &pad_state, &format);
4861 	if (ret)
4862 		return ret;
4863 
4864 	dev_dbg(isp->dev, "try_mbus_fmt: got %ux%u\n",
4865 		snr_mbus_fmt->width, snr_mbus_fmt->height);
4866 
4867 	fmt = atomisp_get_format_bridge_from_mbus(snr_mbus_fmt->code);
4868 	if (!fmt) {
4869 		dev_err(isp->dev, "unknown sensor format 0x%8.8x\n",
4870 			snr_mbus_fmt->code);
4871 		return -EINVAL;
4872 	}
4873 
4874 	f->pixelformat = fmt->pixelformat;
4875 
4876 	/*
4877 	 * If the format is jpeg or custom RAW, then the width and height will
4878 	 * not satisfy the normal atomisp requirements and no need to check
4879 	 * the below conditions. So just assign to what is being returned from
4880 	 * the sensor driver.
4881 	 */
4882 	if (f->pixelformat == V4L2_PIX_FMT_JPEG ||
4883 	    f->pixelformat == V4L2_PIX_FMT_CUSTOM_M10MO_RAW) {
4884 		f->width = snr_mbus_fmt->width;
4885 		f->height = snr_mbus_fmt->height;
4886 		return 0;
4887 	}
4888 
4889 	if (snr_mbus_fmt->width < f->width
4890 	    && snr_mbus_fmt->height < f->height) {
4891 		f->width = snr_mbus_fmt->width;
4892 		f->height = snr_mbus_fmt->height;
4893 		/* Set the flag when resolution requested is
4894 		 * beyond the max value supported by sensor
4895 		 */
4896 		if (res_overflow)
4897 			*res_overflow = true;
4898 	}
4899 
4900 	/* app vs isp */
4901 	f->width = rounddown(clamp_t(u32, f->width, ATOM_ISP_MIN_WIDTH,
4902 				     ATOM_ISP_MAX_WIDTH), ATOM_ISP_STEP_WIDTH);
4903 	f->height = rounddown(clamp_t(u32, f->height, ATOM_ISP_MIN_HEIGHT,
4904 				      ATOM_ISP_MAX_HEIGHT), ATOM_ISP_STEP_HEIGHT);
4905 
4906 	return 0;
4907 }
4908 
4909 static int
4910 atomisp_try_fmt_file(struct atomisp_device *isp, struct v4l2_format *f)
4911 {
4912 	u32 width = f->fmt.pix.width;
4913 	u32 height = f->fmt.pix.height;
4914 	u32 pixelformat = f->fmt.pix.pixelformat;
4915 	enum v4l2_field field = f->fmt.pix.field;
4916 	u32 depth;
4917 
4918 	if (!atomisp_get_format_bridge(pixelformat)) {
4919 		dev_err(isp->dev, "Wrong output pixelformat\n");
4920 		return -EINVAL;
4921 	}
4922 
4923 	depth = atomisp_get_pixel_depth(pixelformat);
4924 
4925 	if (field == V4L2_FIELD_ANY) {
4926 		field = V4L2_FIELD_NONE;
4927 	} else if (field != V4L2_FIELD_NONE) {
4928 		dev_err(isp->dev, "Wrong output field\n");
4929 		return -EINVAL;
4930 	}
4931 
4932 	f->fmt.pix.field = field;
4933 	f->fmt.pix.width = clamp_t(u32,
4934 				   rounddown(width, (u32)ATOM_ISP_STEP_WIDTH),
4935 				   ATOM_ISP_MIN_WIDTH, ATOM_ISP_MAX_WIDTH);
4936 	f->fmt.pix.height = clamp_t(u32, rounddown(height,
4937 				    (u32)ATOM_ISP_STEP_HEIGHT),
4938 				    ATOM_ISP_MIN_HEIGHT, ATOM_ISP_MAX_HEIGHT);
4939 	f->fmt.pix.bytesperline = (width * depth) >> 3;
4940 
4941 	return 0;
4942 }
4943 
4944 enum mipi_port_id __get_mipi_port(struct atomisp_device *isp,
4945 				  enum atomisp_camera_port port)
4946 {
4947 	switch (port) {
4948 	case ATOMISP_CAMERA_PORT_PRIMARY:
4949 		return MIPI_PORT0_ID;
4950 	case ATOMISP_CAMERA_PORT_SECONDARY:
4951 		return MIPI_PORT1_ID;
4952 	case ATOMISP_CAMERA_PORT_TERTIARY:
4953 		if (MIPI_PORT1_ID + 1 != N_MIPI_PORT_ID)
4954 			return MIPI_PORT1_ID + 1;
4955 		fallthrough;
4956 	default:
4957 		dev_err(isp->dev, "unsupported port: %d\n", port);
4958 		return MIPI_PORT0_ID;
4959 	}
4960 }
4961 
4962 static inline int atomisp_set_sensor_mipi_to_isp(
4963     struct atomisp_sub_device *asd,
4964     enum atomisp_input_stream_id stream_id,
4965     struct camera_mipi_info *mipi_info)
4966 {
4967 	struct v4l2_control ctrl;
4968 	struct atomisp_device *isp = asd->isp;
4969 	const struct atomisp_in_fmt_conv *fc;
4970 	int mipi_freq = 0;
4971 	unsigned int input_format, bayer_order;
4972 
4973 	ctrl.id = V4L2_CID_LINK_FREQ;
4974 	if (v4l2_g_ctrl
4975 	    (isp->inputs[asd->input_curr].camera->ctrl_handler, &ctrl) == 0)
4976 		mipi_freq = ctrl.value;
4977 
4978 	if (asd->stream_env[stream_id].isys_configs == 1) {
4979 		input_format =
4980 		    asd->stream_env[stream_id].isys_info[0].input_format;
4981 		atomisp_css_isys_set_format(asd, stream_id,
4982 					    input_format, IA_CSS_STREAM_DEFAULT_ISYS_STREAM_IDX);
4983 	} else if (asd->stream_env[stream_id].isys_configs == 2) {
4984 		atomisp_css_isys_two_stream_cfg_update_stream1(
4985 		    asd, stream_id,
4986 		    asd->stream_env[stream_id].isys_info[0].input_format,
4987 		    asd->stream_env[stream_id].isys_info[0].width,
4988 		    asd->stream_env[stream_id].isys_info[0].height);
4989 
4990 		atomisp_css_isys_two_stream_cfg_update_stream2(
4991 		    asd, stream_id,
4992 		    asd->stream_env[stream_id].isys_info[1].input_format,
4993 		    asd->stream_env[stream_id].isys_info[1].width,
4994 		    asd->stream_env[stream_id].isys_info[1].height);
4995 	}
4996 
4997 	/* Compatibility for sensors which provide no media bus code
4998 	 * in s_mbus_framefmt() nor support pad formats. */
4999 	if (mipi_info->input_format != -1) {
5000 		bayer_order = mipi_info->raw_bayer_order;
5001 
5002 		/* Input stream config is still needs configured */
5003 		/* TODO: Check if this is necessary */
5004 		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(
5005 			 mipi_info->input_format);
5006 		if (!fc)
5007 			return -EINVAL;
5008 		input_format = fc->atomisp_in_fmt;
5009 	} else {
5010 		struct v4l2_mbus_framefmt *sink;
5011 
5012 		sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
5013 					       V4L2_SUBDEV_FORMAT_ACTIVE,
5014 					       ATOMISP_SUBDEV_PAD_SINK);
5015 		fc = atomisp_find_in_fmt_conv(sink->code);
5016 		if (!fc)
5017 			return -EINVAL;
5018 		input_format = fc->atomisp_in_fmt;
5019 		bayer_order = fc->bayer_order;
5020 	}
5021 
5022 	atomisp_css_input_set_format(asd, stream_id, input_format);
5023 	atomisp_css_input_set_bayer_order(asd, stream_id, bayer_order);
5024 
5025 	fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(
5026 		 mipi_info->metadata_format);
5027 	if (!fc)
5028 		return -EINVAL;
5029 	input_format = fc->atomisp_in_fmt;
5030 	atomisp_css_input_configure_port(asd,
5031 					 __get_mipi_port(asd->isp, mipi_info->port),
5032 					 mipi_info->num_lanes,
5033 					 0xffff4, mipi_freq,
5034 					 input_format,
5035 					 mipi_info->metadata_width,
5036 					 mipi_info->metadata_height);
5037 	return 0;
5038 }
5039 
5040 static int __enable_continuous_mode(struct atomisp_sub_device *asd,
5041 				    bool enable)
5042 {
5043 	struct atomisp_device *isp = asd->isp;
5044 
5045 	dev_dbg(isp->dev,
5046 		"continuous mode %d, raw buffers %d, stop preview %d\n",
5047 		enable, asd->continuous_raw_buffer_size->val,
5048 		!asd->continuous_viewfinder->val);
5049 
5050 	if (!IS_ISP2401)
5051 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_PRIMARY);
5052 	else
5053 		atomisp_update_capture_mode(asd);
5054 
5055 	/* in case of ANR, force capture pipe to offline mode */
5056 	atomisp_css_capture_enable_online(asd, ATOMISP_INPUT_STREAM_GENERAL,
5057 					  asd->params.low_light ? false : !enable);
5058 	atomisp_css_preview_enable_online(asd, ATOMISP_INPUT_STREAM_GENERAL,
5059 					  !enable);
5060 	atomisp_css_enable_continuous(asd, enable);
5061 	atomisp_css_enable_cvf(asd, asd->continuous_viewfinder->val);
5062 
5063 	atomisp_css_continuous_set_num_raw_frames(asd,
5064 		asd->continuous_raw_buffer_size->val);
5065 
5066 	if (!enable) {
5067 		atomisp_css_enable_raw_binning(asd, false);
5068 		atomisp_css_input_set_two_pixels_per_clock(asd, false);
5069 	}
5070 
5071 	if (isp->inputs[asd->input_curr].type != FILE_INPUT)
5072 		atomisp_css_input_set_mode(asd, IA_CSS_INPUT_MODE_BUFFERED_SENSOR);
5073 
5074 	return atomisp_update_run_mode(asd);
5075 }
5076 
5077 static int configure_pp_input_nop(struct atomisp_sub_device *asd,
5078 				  unsigned int width, unsigned int height)
5079 {
5080 	return 0;
5081 }
5082 
5083 static int configure_output_nop(struct atomisp_sub_device *asd,
5084 				unsigned int width, unsigned int height,
5085 				unsigned int min_width,
5086 				enum ia_css_frame_format sh_fmt)
5087 {
5088 	return 0;
5089 }
5090 
5091 static int get_frame_info_nop(struct atomisp_sub_device *asd,
5092 			      struct ia_css_frame_info *finfo)
5093 {
5094 	return 0;
5095 }
5096 
5097 /*
5098  * Resets CSS parameters that depend on input resolution.
5099  *
5100  * Update params like CSS RAW binning, 2ppc mode and pp_input
5101  * which depend on input size, but are not automatically
5102  * handled in CSS when the input resolution is changed.
5103  */
5104 static int css_input_resolution_changed(struct atomisp_sub_device *asd,
5105 					struct v4l2_mbus_framefmt *ffmt)
5106 {
5107 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf;
5108 	unsigned int i;
5109 
5110 	dev_dbg(asd->isp->dev, "css_input_resolution_changed to %ux%u\n",
5111 		ffmt->width, ffmt->height);
5112 
5113 	if (IS_ISP2401)
5114 		atomisp_css_input_set_two_pixels_per_clock(asd, false);
5115 	else
5116 		atomisp_css_input_set_two_pixels_per_clock(asd, true);
5117 
5118 	if (asd->continuous_mode->val) {
5119 		/* Note for all checks: ffmt includes pad_w+pad_h */
5120 		if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO ||
5121 		    (ffmt->width >= 2048 || ffmt->height >= 1536)) {
5122 			/*
5123 			 * For preview pipe, enable only if resolution
5124 			 * is >= 3M for ISP2400.
5125 			 */
5126 			atomisp_css_enable_raw_binning(asd, true);
5127 		}
5128 	}
5129 	/*
5130 	 * If sensor input changed, which means metadata resolution changed
5131 	 * together. Release all metadata buffers here to let it re-allocated
5132 	 * next time in reqbufs.
5133 	 */
5134 	for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
5135 		list_for_each_entry_safe(md_buf, _md_buf, &asd->metadata[i],
5136 					 list) {
5137 			atomisp_css_free_metadata_buffer(md_buf);
5138 			list_del(&md_buf->list);
5139 			kfree(md_buf);
5140 		}
5141 	}
5142 	return 0;
5143 
5144 	/*
5145 	 * TODO: atomisp_css_preview_configure_pp_input() not
5146 	 *       reset due to CSS bug tracked as PSI BZ 115124
5147 	 */
5148 }
5149 
5150 static int atomisp_set_fmt_to_isp(struct video_device *vdev,
5151 				  struct ia_css_frame_info *output_info,
5152 				  struct ia_css_frame_info *raw_output_info,
5153 				  struct v4l2_pix_format *pix,
5154 				  unsigned int source_pad)
5155 {
5156 	struct camera_mipi_info *mipi_info;
5157 	struct atomisp_device *isp = video_get_drvdata(vdev);
5158 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
5159 	const struct atomisp_format_bridge *format;
5160 	struct v4l2_rect *isp_sink_crop;
5161 	enum ia_css_pipe_id pipe_id;
5162 	struct v4l2_subdev_fh fh;
5163 	int (*configure_output)(struct atomisp_sub_device *asd,
5164 				unsigned int width, unsigned int height,
5165 				unsigned int min_width,
5166 				enum ia_css_frame_format sh_fmt) =
5167 				    configure_output_nop;
5168 	int (*get_frame_info)(struct atomisp_sub_device *asd,
5169 			      struct ia_css_frame_info *finfo) =
5170 				  get_frame_info_nop;
5171 	int (*configure_pp_input)(struct atomisp_sub_device *asd,
5172 				  unsigned int width, unsigned int height) =
5173 				      configure_pp_input_nop;
5174 	u16 stream_index;
5175 	const struct atomisp_in_fmt_conv *fc;
5176 	int ret, i;
5177 
5178 	if (!asd) {
5179 		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
5180 			__func__, vdev->name);
5181 		return -EINVAL;
5182 	}
5183 	stream_index = atomisp_source_pad_to_stream_id(asd, source_pad);
5184 
5185 	v4l2_fh_init(&fh.vfh, vdev);
5186 
5187 	isp_sink_crop = atomisp_subdev_get_rect(
5188 			    &asd->subdev, NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
5189 			    ATOMISP_SUBDEV_PAD_SINK, V4L2_SEL_TGT_CROP);
5190 
5191 	format = atomisp_get_format_bridge(pix->pixelformat);
5192 	if (!format)
5193 		return -EINVAL;
5194 
5195 	if (isp->inputs[asd->input_curr].type != TEST_PATTERN &&
5196 	    isp->inputs[asd->input_curr].type != FILE_INPUT) {
5197 		mipi_info = atomisp_to_sensor_mipi_info(
5198 				isp->inputs[asd->input_curr].camera);
5199 		if (!mipi_info) {
5200 			dev_err(isp->dev, "mipi_info is NULL\n");
5201 			return -EINVAL;
5202 		}
5203 		if (atomisp_set_sensor_mipi_to_isp(asd, stream_index,
5204 						   mipi_info))
5205 			return -EINVAL;
5206 		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(
5207 			 mipi_info->input_format);
5208 		if (!fc)
5209 			fc = atomisp_find_in_fmt_conv(
5210 				 atomisp_subdev_get_ffmt(&asd->subdev,
5211 							 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
5212 							 ATOMISP_SUBDEV_PAD_SINK)->code);
5213 		if (!fc)
5214 			return -EINVAL;
5215 		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&
5216 		    raw_output_format_match_input(fc->atomisp_in_fmt,
5217 						  pix->pixelformat))
5218 			return -EINVAL;
5219 	}
5220 
5221 	/*
5222 	 * Configure viewfinder also when vfpp is disabled: the
5223 	 * CSS still requires viewfinder configuration.
5224 	 */
5225 	if (asd->fmt_auto->val ||
5226 	    asd->vfpp->val != ATOMISP_VFPP_ENABLE) {
5227 		struct v4l2_rect vf_size = {0};
5228 		struct v4l2_mbus_framefmt vf_ffmt = {0};
5229 
5230 		if (pix->width < 640 || pix->height < 480) {
5231 			vf_size.width = pix->width;
5232 			vf_size.height = pix->height;
5233 		} else {
5234 			vf_size.width = 640;
5235 			vf_size.height = 480;
5236 		}
5237 
5238 		/* FIXME: proper format name for this one. See
5239 		   atomisp_output_fmts[] in atomisp_v4l2.c */
5240 		vf_ffmt.code = V4L2_MBUS_FMT_CUSTOM_YUV420;
5241 
5242 		atomisp_subdev_set_selection(&asd->subdev, fh.state,
5243 					     V4L2_SUBDEV_FORMAT_ACTIVE,
5244 					     ATOMISP_SUBDEV_PAD_SOURCE_VF,
5245 					     V4L2_SEL_TGT_COMPOSE, 0, &vf_size);
5246 		atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
5247 					V4L2_SUBDEV_FORMAT_ACTIVE,
5248 					ATOMISP_SUBDEV_PAD_SOURCE_VF, &vf_ffmt);
5249 		asd->video_out_vf.sh_fmt = IA_CSS_FRAME_FORMAT_NV12;
5250 
5251 		if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
5252 			atomisp_css_video_configure_viewfinder(asd,
5253 							       vf_size.width, vf_size.height, 0,
5254 							       asd->video_out_vf.sh_fmt);
5255 		} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
5256 			if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW ||
5257 			    source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO)
5258 				atomisp_css_video_configure_viewfinder(asd,
5259 								       vf_size.width, vf_size.height, 0,
5260 								       asd->video_out_vf.sh_fmt);
5261 			else
5262 				atomisp_css_capture_configure_viewfinder(asd,
5263 					vf_size.width, vf_size.height, 0,
5264 					asd->video_out_vf.sh_fmt);
5265 		} else if (source_pad != ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW ||
5266 			   asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
5267 			atomisp_css_capture_configure_viewfinder(asd,
5268 				vf_size.width, vf_size.height, 0,
5269 				asd->video_out_vf.sh_fmt);
5270 		}
5271 	}
5272 
5273 	if (asd->continuous_mode->val) {
5274 		ret = __enable_continuous_mode(asd, true);
5275 		if (ret)
5276 			return -EINVAL;
5277 	}
5278 
5279 	atomisp_css_input_set_mode(asd, IA_CSS_INPUT_MODE_BUFFERED_SENSOR);
5280 
5281 	for (i = 0; i < IA_CSS_PIPE_ID_NUM; i++)
5282 		asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].pipe_extra_configs[i].disable_vf_pp = asd->vfpp->val != ATOMISP_VFPP_ENABLE;
5283 
5284 	/* ISP2401 new input system need to use copy pipe */
5285 	if (asd->copy_mode) {
5286 		pipe_id = IA_CSS_PIPE_ID_COPY;
5287 		atomisp_css_capture_enable_online(asd, stream_index, false);
5288 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
5289 		/* video same in continuouscapture and online modes */
5290 		configure_output = atomisp_css_video_configure_output;
5291 		get_frame_info = atomisp_css_video_get_output_frame_info;
5292 		pipe_id = IA_CSS_PIPE_ID_VIDEO;
5293 	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
5294 		if (!asd->continuous_mode->val) {
5295 			configure_output = atomisp_css_video_configure_output;
5296 			get_frame_info =
5297 			    atomisp_css_video_get_output_frame_info;
5298 			pipe_id = IA_CSS_PIPE_ID_VIDEO;
5299 		} else {
5300 			if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW ||
5301 			    source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO) {
5302 				configure_output =
5303 				    atomisp_css_video_configure_output;
5304 				get_frame_info =
5305 				    atomisp_css_video_get_output_frame_info;
5306 				configure_pp_input =
5307 				    atomisp_css_video_configure_pp_input;
5308 				pipe_id = IA_CSS_PIPE_ID_VIDEO;
5309 			} else {
5310 				configure_output =
5311 				    atomisp_css_capture_configure_output;
5312 				get_frame_info =
5313 				    atomisp_css_capture_get_output_frame_info;
5314 				configure_pp_input =
5315 				    atomisp_css_capture_configure_pp_input;
5316 				pipe_id = IA_CSS_PIPE_ID_CAPTURE;
5317 
5318 				atomisp_update_capture_mode(asd);
5319 				atomisp_css_capture_enable_online(asd, stream_index, false);
5320 			}
5321 		}
5322 	} else if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW) {
5323 		configure_output = atomisp_css_preview_configure_output;
5324 		get_frame_info = atomisp_css_preview_get_output_frame_info;
5325 		configure_pp_input = atomisp_css_preview_configure_pp_input;
5326 		pipe_id = IA_CSS_PIPE_ID_PREVIEW;
5327 	} else {
5328 		/* CSS doesn't support low light mode on SOC cameras, so disable
5329 		 * it. FIXME: if this is done elsewhere, it gives corrupted
5330 		 * colors into thumbnail image.
5331 		 */
5332 		if (isp->inputs[asd->input_curr].type == SOC_CAMERA)
5333 			asd->params.low_light = false;
5334 
5335 		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
5336 			atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_RAW);
5337 			atomisp_css_enable_dz(asd, false);
5338 		} else {
5339 			atomisp_update_capture_mode(asd);
5340 		}
5341 
5342 		if (!asd->continuous_mode->val)
5343 			/* in case of ANR, force capture pipe to offline mode */
5344 			atomisp_css_capture_enable_online(asd, stream_index,
5345 							  asd->params.low_light ?
5346 							  false : asd->params.online_process);
5347 
5348 		configure_output = atomisp_css_capture_configure_output;
5349 		get_frame_info = atomisp_css_capture_get_output_frame_info;
5350 		configure_pp_input = atomisp_css_capture_configure_pp_input;
5351 		pipe_id = IA_CSS_PIPE_ID_CAPTURE;
5352 
5353 		if (!asd->params.online_process &&
5354 		    !asd->continuous_mode->val) {
5355 			ret = atomisp_css_capture_get_output_raw_frame_info(asd,
5356 				raw_output_info);
5357 			if (ret)
5358 				return ret;
5359 		}
5360 		if (!asd->continuous_mode->val && asd->run_mode->val
5361 		    != ATOMISP_RUN_MODE_STILL_CAPTURE) {
5362 			dev_err(isp->dev,
5363 				"Need to set the running mode first\n");
5364 			asd->run_mode->val = ATOMISP_RUN_MODE_STILL_CAPTURE;
5365 		}
5366 	}
5367 
5368 	/*
5369 	 * to SOC camera, use yuvpp pipe.
5370 	 */
5371 	if (ATOMISP_USE_YUVPP(asd))
5372 		pipe_id = IA_CSS_PIPE_ID_YUVPP;
5373 
5374 	if (asd->copy_mode)
5375 		ret = atomisp_css_copy_configure_output(asd, stream_index,
5376 							pix->width, pix->height,
5377 							format->planar ? pix->bytesperline :
5378 							pix->bytesperline * 8 / format->depth,
5379 							format->sh_fmt);
5380 	else
5381 		ret = configure_output(asd, pix->width, pix->height,
5382 				       format->planar ? pix->bytesperline :
5383 				       pix->bytesperline * 8 / format->depth,
5384 				       format->sh_fmt);
5385 	if (ret) {
5386 		dev_err(isp->dev, "configure_output %ux%u, format %8.8x\n",
5387 			pix->width, pix->height, format->sh_fmt);
5388 		return -EINVAL;
5389 	}
5390 
5391 	ret = configure_pp_input(asd, isp_sink_crop->width, isp_sink_crop->height);
5392 	if (ret) {
5393 		dev_err(isp->dev, "configure_pp_input %ux%u\n",
5394 			isp_sink_crop->width,
5395 			isp_sink_crop->height);
5396 		return -EINVAL;
5397 	}
5398 	if (asd->copy_mode)
5399 		ret = atomisp_css_copy_get_output_frame_info(asd, stream_index,
5400 			output_info);
5401 	else
5402 		ret = get_frame_info(asd, output_info);
5403 	if (ret) {
5404 		dev_err(isp->dev, "__get_frame_info %ux%u (padded to %u) returned %d\n",
5405 			pix->width, pix->height, pix->bytesperline, ret);
5406 		return ret;
5407 	}
5408 
5409 	atomisp_update_grid_info(asd, pipe_id, source_pad);
5410 
5411 	/* Free the raw_dump buffer first */
5412 	ia_css_frame_free(asd->raw_output_frame);
5413 	asd->raw_output_frame = NULL;
5414 
5415 	if (!asd->continuous_mode->val &&
5416 	    !asd->params.online_process && !isp->sw_contex.file_input &&
5417 	    ia_css_frame_allocate_from_info(&asd->raw_output_frame,
5418 		    raw_output_info))
5419 		return -ENOMEM;
5420 
5421 	return 0;
5422 }
5423 
5424 static void atomisp_get_dis_envelop(struct atomisp_sub_device *asd,
5425 				    unsigned int width, unsigned int height,
5426 				    unsigned int *dvs_env_w, unsigned int *dvs_env_h)
5427 {
5428 	struct atomisp_device *isp = asd->isp;
5429 
5430 	/* if subdev type is SOC camera,we do not need to set DVS */
5431 	if (isp->inputs[asd->input_curr].type == SOC_CAMERA)
5432 		asd->params.video_dis_en = false;
5433 
5434 	if (asd->params.video_dis_en &&
5435 	    asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
5436 		/* envelope is 20% of the output resolution */
5437 		/*
5438 		 * dvs envelope cannot be round up.
5439 		 * it would cause ISP timeout and color switch issue
5440 		 */
5441 		*dvs_env_w = rounddown(width / 5, ATOM_ISP_STEP_WIDTH);
5442 		*dvs_env_h = rounddown(height / 5, ATOM_ISP_STEP_HEIGHT);
5443 	}
5444 
5445 	asd->params.dis_proj_data_valid = false;
5446 	asd->params.css_update_params_needed = true;
5447 }
5448 
5449 static void atomisp_check_copy_mode(struct atomisp_sub_device *asd,
5450 				    int source_pad, struct v4l2_pix_format *f)
5451 {
5452 	struct v4l2_mbus_framefmt *sink, *src;
5453 
5454 	if (!IS_ISP2401) {
5455 		/* Only used for the new input system */
5456 		asd->copy_mode = false;
5457 		return;
5458 	}
5459 
5460 	sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
5461 				       V4L2_SUBDEV_FORMAT_ACTIVE, ATOMISP_SUBDEV_PAD_SINK);
5462 	src = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
5463 				      V4L2_SUBDEV_FORMAT_ACTIVE, source_pad);
5464 
5465 	if ((sink->code == src->code &&
5466 	     sink->width == f->width &&
5467 	     sink->height == f->height) ||
5468 	    ((asd->isp->inputs[asd->input_curr].type == SOC_CAMERA) &&
5469 	     (asd->isp->inputs[asd->input_curr].camera_caps->
5470 	      sensor[asd->sensor_curr].stream_num > 1)))
5471 		asd->copy_mode = true;
5472 	else
5473 		asd->copy_mode = false;
5474 
5475 	dev_dbg(asd->isp->dev, "copy_mode: %d\n", asd->copy_mode);
5476 }
5477 
5478 static int atomisp_set_fmt_to_snr(struct video_device *vdev,
5479 				  struct v4l2_pix_format *f, unsigned int pixelformat,
5480 				  unsigned int padding_w, unsigned int padding_h,
5481 				  unsigned int dvs_env_w, unsigned int dvs_env_h)
5482 {
5483 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
5484 	struct atomisp_sub_device *asd = pipe->asd;
5485 	const struct atomisp_format_bridge *format;
5486 	struct v4l2_subdev_pad_config pad_cfg;
5487 	struct v4l2_subdev_state pad_state = {
5488 		.pads = &pad_cfg
5489 		};
5490 	struct v4l2_subdev_format vformat = {
5491 		.which = V4L2_SUBDEV_FORMAT_TRY,
5492 	};
5493 	struct v4l2_mbus_framefmt *ffmt = &vformat.format;
5494 	struct v4l2_mbus_framefmt *req_ffmt;
5495 	struct atomisp_device *isp;
5496 	struct atomisp_input_stream_info *stream_info =
5497 	    (struct atomisp_input_stream_info *)ffmt->reserved;
5498 	u16 stream_index = ATOMISP_INPUT_STREAM_GENERAL;
5499 	int source_pad = atomisp_subdev_source_pad(vdev);
5500 	struct v4l2_subdev_fh fh;
5501 	int ret;
5502 
5503 	if (!asd) {
5504 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
5505 			__func__, vdev->name);
5506 		return -EINVAL;
5507 	}
5508 
5509 	isp = asd->isp;
5510 
5511 	v4l2_fh_init(&fh.vfh, vdev);
5512 
5513 	stream_index = atomisp_source_pad_to_stream_id(asd, source_pad);
5514 
5515 	format = atomisp_get_format_bridge(pixelformat);
5516 	if (!format)
5517 		return -EINVAL;
5518 
5519 	v4l2_fill_mbus_format(ffmt, f, format->mbus_code);
5520 	ffmt->height += padding_h + dvs_env_h;
5521 	ffmt->width += padding_w + dvs_env_w;
5522 
5523 	dev_dbg(isp->dev, "s_mbus_fmt: ask %ux%u (padding %ux%u, dvs %ux%u)\n",
5524 		ffmt->width, ffmt->height, padding_w, padding_h,
5525 		dvs_env_w, dvs_env_h);
5526 
5527 	__atomisp_init_stream_info(stream_index, stream_info);
5528 
5529 	req_ffmt = ffmt;
5530 
5531 	/* Disable dvs if resolution can't be supported by sensor */
5532 	if (asd->params.video_dis_en &&
5533 	    source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO) {
5534 		vformat.which = V4L2_SUBDEV_FORMAT_TRY;
5535 		ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
5536 				       pad, set_fmt, &pad_state, &vformat);
5537 		if (ret)
5538 			return ret;
5539 
5540 		dev_dbg(isp->dev, "video dis: sensor width: %d, height: %d\n",
5541 			ffmt->width, ffmt->height);
5542 
5543 		if (ffmt->width < req_ffmt->width ||
5544 		    ffmt->height < req_ffmt->height) {
5545 			req_ffmt->height -= dvs_env_h;
5546 			req_ffmt->width -= dvs_env_w;
5547 			ffmt = req_ffmt;
5548 			dev_warn(isp->dev,
5549 				 "can not enable video dis due to sensor limitation.");
5550 			asd->params.video_dis_en = false;
5551 		}
5552 	}
5553 	vformat.which = V4L2_SUBDEV_FORMAT_ACTIVE;
5554 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, pad,
5555 			       set_fmt, NULL, &vformat);
5556 	if (ret)
5557 		return ret;
5558 
5559 	__atomisp_update_stream_env(asd, stream_index, stream_info);
5560 
5561 	dev_dbg(isp->dev, "sensor width: %d, height: %d\n",
5562 		ffmt->width, ffmt->height);
5563 
5564 	if (ffmt->width < ATOM_ISP_STEP_WIDTH ||
5565 	    ffmt->height < ATOM_ISP_STEP_HEIGHT)
5566 		return -EINVAL;
5567 
5568 	if (asd->params.video_dis_en &&
5569 	    source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO &&
5570 	    (ffmt->width < req_ffmt->width || ffmt->height < req_ffmt->height)) {
5571 		dev_warn(isp->dev,
5572 			 "can not enable video dis due to sensor limitation.");
5573 		asd->params.video_dis_en = false;
5574 	}
5575 
5576 	atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
5577 				V4L2_SUBDEV_FORMAT_ACTIVE,
5578 				ATOMISP_SUBDEV_PAD_SINK, ffmt);
5579 
5580 	return css_input_resolution_changed(asd, ffmt);
5581 }
5582 
5583 int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
5584 {
5585 	struct atomisp_device *isp = video_get_drvdata(vdev);
5586 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
5587 	struct atomisp_sub_device *asd = pipe->asd;
5588 	const struct atomisp_format_bridge *format_bridge;
5589 	const struct atomisp_format_bridge *snr_format_bridge;
5590 	struct ia_css_frame_info output_info, raw_output_info;
5591 	struct v4l2_pix_format snr_fmt;
5592 	struct v4l2_pix_format backup_fmt, s_fmt;
5593 	unsigned int dvs_env_w = 0, dvs_env_h = 0;
5594 	unsigned int padding_w = pad_w, padding_h = pad_h;
5595 	bool res_overflow = false, crop_needs_override = false;
5596 	struct v4l2_mbus_framefmt *isp_sink_fmt;
5597 	struct v4l2_mbus_framefmt isp_source_fmt = {0};
5598 	struct v4l2_subdev_format vformat = {
5599 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
5600 	};
5601 	struct v4l2_mbus_framefmt *ffmt = &vformat.format;
5602 	struct v4l2_rect isp_sink_crop;
5603 	u16 source_pad = atomisp_subdev_source_pad(vdev);
5604 	struct v4l2_subdev_fh fh;
5605 	int ret;
5606 
5607 	if (!asd) {
5608 		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
5609 			__func__, vdev->name);
5610 		return -EINVAL;
5611 	}
5612 
5613 	if (source_pad >= ATOMISP_SUBDEV_PADS_NUM)
5614 		return -EINVAL;
5615 
5616 	if (asd->streaming == ATOMISP_DEVICE_STREAMING_ENABLED) {
5617 		dev_warn(isp->dev, "ISP does not support set format while at streaming!\n");
5618 		return -EBUSY;
5619 	}
5620 
5621 	dev_dbg(isp->dev,
5622 		"setting resolution %ux%u on pad %u for asd%d, bytesperline %u\n",
5623 		f->fmt.pix.width, f->fmt.pix.height, source_pad,
5624 		asd->index, f->fmt.pix.bytesperline);
5625 
5626 	v4l2_fh_init(&fh.vfh, vdev);
5627 
5628 	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
5629 	if (!format_bridge)
5630 		return -EINVAL;
5631 
5632 	/* Currently, raw formats are broken!!! */
5633 
5634 	if (format_bridge->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
5635 		f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
5636 
5637 		format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
5638 		if (!format_bridge)
5639 			return -EINVAL;
5640 	}
5641 	pipe->sh_fmt = format_bridge->sh_fmt;
5642 	pipe->pix.pixelformat = f->fmt.pix.pixelformat;
5643 
5644 	/* Ensure that the resolution is equal or below the maximum supported */
5645 
5646 	vformat.which = V4L2_SUBDEV_FORMAT_ACTIVE;
5647 	v4l2_fill_mbus_format(ffmt, &f->fmt.pix, format_bridge->mbus_code);
5648 	ffmt->height += padding_h;
5649 	ffmt->width += padding_w;
5650 
5651 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, pad,
5652 			       set_fmt, NULL, &vformat);
5653 	if (ret)
5654 		return ret;
5655 
5656 	f->fmt.pix.width = ffmt->width - padding_w;
5657 	f->fmt.pix.height = ffmt->height - padding_h;
5658 
5659 	snr_fmt = f->fmt.pix;
5660 	backup_fmt = snr_fmt;
5661 
5662 	/**********************************************************************/
5663 
5664 	if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VF ||
5665 	    (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW
5666 	     && asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO)) {
5667 		if (asd->fmt_auto->val) {
5668 			struct v4l2_rect *capture_comp;
5669 			struct v4l2_rect r = {0};
5670 
5671 			r.width = f->fmt.pix.width;
5672 			r.height = f->fmt.pix.height;
5673 
5674 			if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW)
5675 				capture_comp = atomisp_subdev_get_rect(
5676 						   &asd->subdev, NULL,
5677 						   V4L2_SUBDEV_FORMAT_ACTIVE,
5678 						   ATOMISP_SUBDEV_PAD_SOURCE_VIDEO,
5679 						   V4L2_SEL_TGT_COMPOSE);
5680 			else
5681 				capture_comp = atomisp_subdev_get_rect(
5682 						   &asd->subdev, NULL,
5683 						   V4L2_SUBDEV_FORMAT_ACTIVE,
5684 						   ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE,
5685 						   V4L2_SEL_TGT_COMPOSE);
5686 
5687 			if (capture_comp->width < r.width
5688 			    || capture_comp->height < r.height) {
5689 				r.width = capture_comp->width;
5690 				r.height = capture_comp->height;
5691 			}
5692 
5693 			atomisp_subdev_set_selection(
5694 			    &asd->subdev, fh.state,
5695 			    V4L2_SUBDEV_FORMAT_ACTIVE, source_pad,
5696 			    V4L2_SEL_TGT_COMPOSE, 0, &r);
5697 
5698 			f->fmt.pix.width = r.width;
5699 			f->fmt.pix.height = r.height;
5700 		}
5701 
5702 		if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW &&
5703 		    (asd->isp->inputs[asd->input_curr].type == SOC_CAMERA) &&
5704 		    (asd->isp->inputs[asd->input_curr].camera_caps->
5705 		     sensor[asd->sensor_curr].stream_num > 1)) {
5706 			/* For M10MO outputing YUV preview images. */
5707 			u16 video_index =
5708 			    atomisp_source_pad_to_stream_id(asd,
5709 							    ATOMISP_SUBDEV_PAD_SOURCE_VIDEO);
5710 
5711 			ret = atomisp_css_copy_get_output_frame_info(asd,
5712 				video_index, &output_info);
5713 			if (ret) {
5714 				dev_err(isp->dev,
5715 					"copy_get_output_frame_info ret %i", ret);
5716 				return -EINVAL;
5717 			}
5718 			if (!asd->yuvpp_mode) {
5719 				/*
5720 				 * If viewfinder was configured into copy_mode,
5721 				 * we switch to using yuvpp pipe instead.
5722 				 */
5723 				asd->yuvpp_mode = true;
5724 				ret = atomisp_css_copy_configure_output(
5725 					  asd, video_index, 0, 0, 0, 0);
5726 				if (ret) {
5727 					dev_err(isp->dev,
5728 						"failed to disable copy pipe");
5729 					return -EINVAL;
5730 				}
5731 				ret = atomisp_css_yuvpp_configure_output(
5732 					  asd, video_index,
5733 					  output_info.res.width,
5734 					  output_info.res.height,
5735 					  output_info.padded_width,
5736 					  output_info.format);
5737 				if (ret) {
5738 					dev_err(isp->dev,
5739 						"failed to set up yuvpp pipe\n");
5740 					return -EINVAL;
5741 				}
5742 				atomisp_css_video_enable_online(asd, false);
5743 				atomisp_css_preview_enable_online(asd,
5744 								  ATOMISP_INPUT_STREAM_GENERAL, false);
5745 			}
5746 			atomisp_css_yuvpp_configure_viewfinder(asd, video_index,
5747 							       f->fmt.pix.width, f->fmt.pix.height,
5748 							       format_bridge->planar ? f->fmt.pix.bytesperline
5749 							       : f->fmt.pix.bytesperline * 8
5750 							       / format_bridge->depth, format_bridge->sh_fmt);
5751 			atomisp_css_yuvpp_get_viewfinder_frame_info(
5752 			    asd, video_index, &output_info);
5753 		} else if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW) {
5754 			atomisp_css_video_configure_viewfinder(asd,
5755 							       f->fmt.pix.width, f->fmt.pix.height,
5756 							       format_bridge->planar ? f->fmt.pix.bytesperline
5757 							       : f->fmt.pix.bytesperline * 8
5758 							       / format_bridge->depth,	format_bridge->sh_fmt);
5759 			atomisp_css_video_get_viewfinder_frame_info(asd,
5760 				&output_info);
5761 			asd->copy_mode = false;
5762 		} else {
5763 			atomisp_css_capture_configure_viewfinder(asd,
5764 				f->fmt.pix.width, f->fmt.pix.height,
5765 				format_bridge->planar ? f->fmt.pix.bytesperline
5766 				: f->fmt.pix.bytesperline * 8
5767 				/ format_bridge->depth,	format_bridge->sh_fmt);
5768 			atomisp_css_capture_get_viewfinder_frame_info(asd,
5769 				&output_info);
5770 			asd->copy_mode = false;
5771 		}
5772 
5773 		goto done;
5774 	}
5775 	/*
5776 	 * Check whether main resolution configured smaller
5777 	 * than snapshot resolution. If so, force main resolution
5778 	 * to be the same as snapshot resolution
5779 	 */
5780 	if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE) {
5781 		struct v4l2_rect *r;
5782 
5783 		r = atomisp_subdev_get_rect(
5784 			&asd->subdev, NULL,
5785 			V4L2_SUBDEV_FORMAT_ACTIVE,
5786 			ATOMISP_SUBDEV_PAD_SOURCE_VF, V4L2_SEL_TGT_COMPOSE);
5787 
5788 		if (r->width && r->height
5789 		    && (r->width > f->fmt.pix.width
5790 			|| r->height > f->fmt.pix.height))
5791 			dev_warn(isp->dev,
5792 				 "Main Resolution config smaller then Vf Resolution. Force to be equal with Vf Resolution.");
5793 	}
5794 
5795 	/* Pipeline configuration done through subdevs. Bail out now. */
5796 	if (!asd->fmt_auto->val)
5797 		goto set_fmt_to_isp;
5798 
5799 	/* get sensor resolution and format */
5800 	ret = atomisp_try_fmt(vdev, &snr_fmt, &res_overflow);
5801 	if (ret) {
5802 		dev_warn(isp->dev, "Try format failed with error %d\n", ret);
5803 		return ret;
5804 	}
5805 	f->fmt.pix.width = snr_fmt.width;
5806 	f->fmt.pix.height = snr_fmt.height;
5807 
5808 	snr_format_bridge = atomisp_get_format_bridge(snr_fmt.pixelformat);
5809 	if (!snr_format_bridge) {
5810 		dev_warn(isp->dev, "Can't find bridge format\n");
5811 		return -EINVAL;
5812 	}
5813 
5814 	atomisp_subdev_get_ffmt(&asd->subdev, NULL,
5815 				V4L2_SUBDEV_FORMAT_ACTIVE,
5816 				ATOMISP_SUBDEV_PAD_SINK)->code =
5817 				    snr_format_bridge->mbus_code;
5818 
5819 	isp_sink_fmt = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
5820 						V4L2_SUBDEV_FORMAT_ACTIVE,
5821 						ATOMISP_SUBDEV_PAD_SINK);
5822 
5823 	isp_source_fmt.code = format_bridge->mbus_code;
5824 	atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
5825 				V4L2_SUBDEV_FORMAT_ACTIVE,
5826 				source_pad, &isp_source_fmt);
5827 
5828 	if (!atomisp_subdev_format_conversion(asd, source_pad)) {
5829 		padding_w = 0;
5830 		padding_h = 0;
5831 	} else if (IS_BYT) {
5832 		padding_w = 12;
5833 		padding_h = 12;
5834 	}
5835 
5836 	/* construct resolution supported by isp */
5837 	if (res_overflow && !asd->continuous_mode->val) {
5838 		f->fmt.pix.width = rounddown(
5839 				       clamp_t(u32, f->fmt.pix.width - padding_w,
5840 					       ATOM_ISP_MIN_WIDTH,
5841 					       ATOM_ISP_MAX_WIDTH), ATOM_ISP_STEP_WIDTH);
5842 		f->fmt.pix.height = rounddown(
5843 					clamp_t(u32, f->fmt.pix.height - padding_h,
5844 						ATOM_ISP_MIN_HEIGHT,
5845 						ATOM_ISP_MAX_HEIGHT), ATOM_ISP_STEP_HEIGHT);
5846 	}
5847 
5848 	atomisp_get_dis_envelop(asd, f->fmt.pix.width, f->fmt.pix.height,
5849 				&dvs_env_w, &dvs_env_h);
5850 
5851 	if (asd->continuous_mode->val) {
5852 		struct v4l2_rect *r;
5853 
5854 		r = atomisp_subdev_get_rect(
5855 			&asd->subdev, NULL,
5856 			V4L2_SUBDEV_FORMAT_ACTIVE,
5857 			ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE,
5858 			V4L2_SEL_TGT_COMPOSE);
5859 		/*
5860 		 * The ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE should get resolutions
5861 		 * properly set otherwise, it should not be the capture_pad.
5862 		 */
5863 		if (r->width && r->height)
5864 			asd->capture_pad = ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE;
5865 		else
5866 			asd->capture_pad = source_pad;
5867 	} else {
5868 		asd->capture_pad = source_pad;
5869 	}
5870 	/*
5871 	 * set format info to sensor
5872 	 * In continuous mode, resolution is set only if it is higher than
5873 	 * existing value. This because preview pipe will be configured after
5874 	 * capture pipe and usually has lower resolution than capture pipe.
5875 	 */
5876 	if (!asd->continuous_mode->val ||
5877 	    isp_sink_fmt->width < (f->fmt.pix.width + padding_w + dvs_env_w) ||
5878 	    isp_sink_fmt->height < (f->fmt.pix.height + padding_h +
5879 				    dvs_env_h)) {
5880 		/*
5881 		 * For jpeg or custom raw format the sensor will return constant
5882 		 * width and height. Because we already had quried try_mbus_fmt,
5883 		 * f->fmt.pix.width and f->fmt.pix.height has been changed to
5884 		 * this fixed width and height. So we cannot select the correct
5885 		 * resolution with that information. So use the original width
5886 		 * and height while set_mbus_fmt() so actual resolutions are
5887 		 * being used in while set media bus format.
5888 		 */
5889 		s_fmt = f->fmt.pix;
5890 		if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG ||
5891 		    f->fmt.pix.pixelformat == V4L2_PIX_FMT_CUSTOM_M10MO_RAW) {
5892 			s_fmt.width = backup_fmt.width;
5893 			s_fmt.height = backup_fmt.height;
5894 		}
5895 		ret = atomisp_set_fmt_to_snr(vdev, &s_fmt,
5896 					     f->fmt.pix.pixelformat, padding_w,
5897 					     padding_h, dvs_env_w, dvs_env_h);
5898 		if (ret) {
5899 			dev_warn(isp->dev,
5900 				 "Set format to sensor failed with %d\n", ret);
5901 			return -EINVAL;
5902 		}
5903 
5904 		atomisp_csi_lane_config(isp);
5905 		crop_needs_override = true;
5906 	}
5907 
5908 	atomisp_check_copy_mode(asd, source_pad, &backup_fmt);
5909 	asd->yuvpp_mode = false;			/* Reset variable */
5910 
5911 	isp_sink_crop = *atomisp_subdev_get_rect(&asd->subdev, NULL,
5912 			V4L2_SUBDEV_FORMAT_ACTIVE,
5913 			ATOMISP_SUBDEV_PAD_SINK,
5914 			V4L2_SEL_TGT_CROP);
5915 
5916 	/* Try to enable YUV downscaling if ISP input is 10 % (either
5917 	 * width or height) bigger than the desired result. */
5918 	if (isp_sink_crop.width * 9 / 10 < f->fmt.pix.width ||
5919 	    isp_sink_crop.height * 9 / 10 < f->fmt.pix.height ||
5920 	    (atomisp_subdev_format_conversion(asd, source_pad) &&
5921 	     ((asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO &&
5922 	       !asd->continuous_mode->val) ||
5923 	      asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER))) {
5924 		/* for continuous mode, preview size might be smaller than
5925 		 * still capture size. if preview size still needs crop,
5926 		 * pick the larger one between crop size of preview and
5927 		 * still capture.
5928 		 */
5929 		if (asd->continuous_mode->val
5930 		    && source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW
5931 		    && !crop_needs_override) {
5932 			isp_sink_crop.width =
5933 			    max_t(unsigned int, f->fmt.pix.width,
5934 				  isp_sink_crop.width);
5935 			isp_sink_crop.height =
5936 			    max_t(unsigned int, f->fmt.pix.height,
5937 				  isp_sink_crop.height);
5938 		} else {
5939 			isp_sink_crop.width = f->fmt.pix.width;
5940 			isp_sink_crop.height = f->fmt.pix.height;
5941 		}
5942 
5943 		atomisp_subdev_set_selection(&asd->subdev, fh.state,
5944 					     V4L2_SUBDEV_FORMAT_ACTIVE,
5945 					     ATOMISP_SUBDEV_PAD_SINK,
5946 					     V4L2_SEL_TGT_CROP,
5947 					     V4L2_SEL_FLAG_KEEP_CONFIG,
5948 					     &isp_sink_crop);
5949 		atomisp_subdev_set_selection(&asd->subdev, fh.state,
5950 					     V4L2_SUBDEV_FORMAT_ACTIVE,
5951 					     source_pad, V4L2_SEL_TGT_COMPOSE,
5952 					     0, &isp_sink_crop);
5953 	} else if (IS_MOFD) {
5954 		struct v4l2_rect main_compose = {0};
5955 
5956 		main_compose.width = isp_sink_crop.width;
5957 		main_compose.height =
5958 		    DIV_ROUND_UP(main_compose.width * f->fmt.pix.height,
5959 				 f->fmt.pix.width);
5960 		if (main_compose.height > isp_sink_crop.height) {
5961 			main_compose.height = isp_sink_crop.height;
5962 			main_compose.width =
5963 			    DIV_ROUND_UP(main_compose.height *
5964 					 f->fmt.pix.width,
5965 					 f->fmt.pix.height);
5966 		}
5967 
5968 		atomisp_subdev_set_selection(&asd->subdev, fh.state,
5969 					     V4L2_SUBDEV_FORMAT_ACTIVE,
5970 					     source_pad,
5971 					     V4L2_SEL_TGT_COMPOSE, 0,
5972 					     &main_compose);
5973 	} else {
5974 		struct v4l2_rect sink_crop = {0};
5975 		struct v4l2_rect main_compose = {0};
5976 
5977 		main_compose.width = f->fmt.pix.width;
5978 		main_compose.height = f->fmt.pix.height;
5979 
5980 		/* WORKAROUND: this override is universally enabled in
5981 		 * GMIN to work around a CTS failures (GMINL-539)
5982 		 * which appears to be related by a hardware
5983 		 * performance limitation.  It's unclear why this
5984 		 * particular code triggers the issue. */
5985 		if (crop_needs_override) {
5986 			if (isp_sink_crop.width * main_compose.height >
5987 			    isp_sink_crop.height * main_compose.width) {
5988 				sink_crop.height = isp_sink_crop.height;
5989 				sink_crop.width = DIV_NEAREST_STEP(
5990 						      sink_crop.height *
5991 						      f->fmt.pix.width,
5992 						      f->fmt.pix.height,
5993 						      ATOM_ISP_STEP_WIDTH);
5994 			} else {
5995 				sink_crop.width = isp_sink_crop.width;
5996 				sink_crop.height = DIV_NEAREST_STEP(
5997 						       sink_crop.width *
5998 						       f->fmt.pix.height,
5999 						       f->fmt.pix.width,
6000 						       ATOM_ISP_STEP_HEIGHT);
6001 			}
6002 			atomisp_subdev_set_selection(&asd->subdev, fh.state,
6003 						     V4L2_SUBDEV_FORMAT_ACTIVE,
6004 						     ATOMISP_SUBDEV_PAD_SINK,
6005 						     V4L2_SEL_TGT_CROP,
6006 						     V4L2_SEL_FLAG_KEEP_CONFIG,
6007 						     &sink_crop);
6008 		}
6009 		atomisp_subdev_set_selection(&asd->subdev, fh.state,
6010 					     V4L2_SUBDEV_FORMAT_ACTIVE,
6011 					     source_pad,
6012 					     V4L2_SEL_TGT_COMPOSE, 0,
6013 					     &main_compose);
6014 	}
6015 
6016 set_fmt_to_isp:
6017 	ret = atomisp_set_fmt_to_isp(vdev, &output_info, &raw_output_info,
6018 				     &f->fmt.pix, source_pad);
6019 	if (ret) {
6020 		dev_warn(isp->dev, "Can't set format on ISP. Error %d\n", ret);
6021 		return -EINVAL;
6022 	}
6023 done:
6024 	pipe->pix.width = f->fmt.pix.width;
6025 	pipe->pix.height = f->fmt.pix.height;
6026 	pipe->pix.pixelformat = f->fmt.pix.pixelformat;
6027 	/*
6028 	 * FIXME: do we need to setup this differently, depending on the
6029 	 * sensor or the pipeline?
6030 	 */
6031 	pipe->pix.colorspace = V4L2_COLORSPACE_REC709;
6032 	pipe->pix.ycbcr_enc = V4L2_YCBCR_ENC_709;
6033 	pipe->pix.xfer_func = V4L2_XFER_FUNC_709;
6034 
6035 	if (format_bridge->planar) {
6036 		pipe->pix.bytesperline = output_info.padded_width;
6037 		pipe->pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height *
6038 						 DIV_ROUND_UP(format_bridge->depth *
6039 							 output_info.padded_width, 8));
6040 	} else {
6041 		pipe->pix.bytesperline =
6042 		    DIV_ROUND_UP(format_bridge->depth *
6043 				 output_info.padded_width, 8);
6044 		pipe->pix.sizeimage =
6045 		    PAGE_ALIGN(f->fmt.pix.height * pipe->pix.bytesperline);
6046 	}
6047 	dev_dbg(isp->dev, "%s: image size: %d, %d bytes per line\n",
6048 		__func__, pipe->pix.sizeimage, pipe->pix.bytesperline);
6049 
6050 	if (f->fmt.pix.field == V4L2_FIELD_ANY)
6051 		f->fmt.pix.field = V4L2_FIELD_NONE;
6052 	pipe->pix.field = f->fmt.pix.field;
6053 
6054 	f->fmt.pix = pipe->pix;
6055 	f->fmt.pix.priv = PAGE_ALIGN(pipe->pix.width *
6056 				     pipe->pix.height * 2);
6057 
6058 	pipe->capq.field = f->fmt.pix.field;
6059 
6060 	/*
6061 	 * If in video 480P case, no GFX throttle
6062 	 */
6063 	if (asd->run_mode->val == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO &&
6064 	    f->fmt.pix.width == 720 && f->fmt.pix.height == 480)
6065 		isp->need_gfx_throttle = false;
6066 	else
6067 		isp->need_gfx_throttle = true;
6068 
6069 	/* Report the needed sizes */
6070 	f->fmt.pix.sizeimage = pipe->pix.sizeimage;
6071 	f->fmt.pix.bytesperline = pipe->pix.bytesperline;
6072 
6073 	dev_dbg(isp->dev, "%s: %dx%d, image size: %d, %d bytes per line\n",
6074 		__func__,
6075 		f->fmt.pix.width, f->fmt.pix.height,
6076 		f->fmt.pix.sizeimage, f->fmt.pix.bytesperline);
6077 
6078 	return 0;
6079 }
6080 
6081 int atomisp_set_fmt_file(struct video_device *vdev, struct v4l2_format *f)
6082 {
6083 	struct atomisp_device *isp = video_get_drvdata(vdev);
6084 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
6085 	struct atomisp_sub_device *asd = pipe->asd;
6086 	struct v4l2_mbus_framefmt ffmt = {0};
6087 	const struct atomisp_format_bridge *format_bridge;
6088 	struct v4l2_subdev_fh fh;
6089 	int ret;
6090 
6091 	if (!asd) {
6092 		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
6093 			__func__, vdev->name);
6094 		return -EINVAL;
6095 	}
6096 
6097 	v4l2_fh_init(&fh.vfh, vdev);
6098 
6099 	dev_dbg(isp->dev, "setting fmt %ux%u 0x%x for file inject\n",
6100 		f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.pixelformat);
6101 	ret = atomisp_try_fmt_file(isp, f);
6102 	if (ret) {
6103 		dev_err(isp->dev, "atomisp_try_fmt_file err: %d\n", ret);
6104 		return ret;
6105 	}
6106 
6107 	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
6108 	if (!format_bridge) {
6109 		dev_dbg(isp->dev, "atomisp_get_format_bridge err! fmt:0x%x\n",
6110 			f->fmt.pix.pixelformat);
6111 		return -EINVAL;
6112 	}
6113 
6114 	pipe->pix = f->fmt.pix;
6115 	atomisp_css_input_set_mode(asd, IA_CSS_INPUT_MODE_FIFO);
6116 	atomisp_css_input_configure_port(asd,
6117 					 __get_mipi_port(isp, ATOMISP_CAMERA_PORT_PRIMARY), 2, 0xffff4,
6118 					 0, 0, 0, 0);
6119 	ffmt.width = f->fmt.pix.width;
6120 	ffmt.height = f->fmt.pix.height;
6121 	ffmt.code = format_bridge->mbus_code;
6122 
6123 	atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
6124 				V4L2_SUBDEV_FORMAT_ACTIVE,
6125 				ATOMISP_SUBDEV_PAD_SINK, &ffmt);
6126 
6127 	return 0;
6128 }
6129 
6130 int atomisp_set_shading_table(struct atomisp_sub_device *asd,
6131 			      struct atomisp_shading_table *user_shading_table)
6132 {
6133 	struct ia_css_shading_table *shading_table;
6134 	struct ia_css_shading_table *free_table;
6135 	unsigned int len_table;
6136 	int i;
6137 	int ret = 0;
6138 
6139 	if (!user_shading_table)
6140 		return -EINVAL;
6141 
6142 	if (!user_shading_table->enable) {
6143 		asd->params.config.shading_table = NULL;
6144 		asd->params.sc_en = false;
6145 		return 0;
6146 	}
6147 
6148 	/* If enabling, all tables must be set */
6149 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
6150 		if (!user_shading_table->data[i])
6151 			return -EINVAL;
6152 	}
6153 
6154 	/* Shading table size per color */
6155 	if (user_shading_table->width > SH_CSS_MAX_SCTBL_WIDTH_PER_COLOR ||
6156 	    user_shading_table->height > SH_CSS_MAX_SCTBL_HEIGHT_PER_COLOR)
6157 		return -EINVAL;
6158 
6159 	shading_table = atomisp_css_shading_table_alloc(
6160 			    user_shading_table->width, user_shading_table->height);
6161 	if (!shading_table)
6162 		return -ENOMEM;
6163 
6164 	len_table = user_shading_table->width * user_shading_table->height *
6165 		    ATOMISP_SC_TYPE_SIZE;
6166 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
6167 		ret = copy_from_user(shading_table->data[i],
6168 				     (void __user *)user_shading_table->data[i],
6169 				     len_table);
6170 		if (ret) {
6171 			free_table = shading_table;
6172 			ret = -EFAULT;
6173 			goto out;
6174 		}
6175 	}
6176 	shading_table->sensor_width = user_shading_table->sensor_width;
6177 	shading_table->sensor_height = user_shading_table->sensor_height;
6178 	shading_table->fraction_bits = user_shading_table->fraction_bits;
6179 
6180 	free_table = asd->params.css_param.shading_table;
6181 	asd->params.css_param.shading_table = shading_table;
6182 	asd->params.config.shading_table = shading_table;
6183 	asd->params.sc_en = true;
6184 
6185 out:
6186 	if (free_table)
6187 		atomisp_css_shading_table_free(free_table);
6188 
6189 	return ret;
6190 }
6191 
6192 /*Turn off ISP dphy */
6193 int atomisp_ospm_dphy_down(struct atomisp_device *isp)
6194 {
6195 	struct pci_dev *pdev = to_pci_dev(isp->dev);
6196 	unsigned long flags;
6197 	u32 reg;
6198 
6199 	dev_dbg(isp->dev, "%s\n", __func__);
6200 
6201 	/* if ISP timeout, we can force powerdown */
6202 	if (isp->isp_timeout)
6203 		goto done;
6204 
6205 	if (!atomisp_dev_users(isp))
6206 		goto done;
6207 
6208 	spin_lock_irqsave(&isp->lock, flags);
6209 	isp->sw_contex.power_state = ATOM_ISP_POWER_DOWN;
6210 	spin_unlock_irqrestore(&isp->lock, flags);
6211 done:
6212 	/*
6213 	 * MRFLD IUNIT DPHY is located in an always-power-on island
6214 	 * MRFLD HW design need all CSI ports are disabled before
6215 	 * powering down the IUNIT.
6216 	 */
6217 	pci_read_config_dword(pdev, MRFLD_PCI_CSI_CONTROL, &reg);
6218 	reg |= MRFLD_ALL_CSI_PORTS_OFF_MASK;
6219 	pci_write_config_dword(pdev, MRFLD_PCI_CSI_CONTROL, reg);
6220 	return 0;
6221 }
6222 
6223 /*Turn on ISP dphy */
6224 int atomisp_ospm_dphy_up(struct atomisp_device *isp)
6225 {
6226 	unsigned long flags;
6227 
6228 	dev_dbg(isp->dev, "%s\n", __func__);
6229 
6230 	spin_lock_irqsave(&isp->lock, flags);
6231 	isp->sw_contex.power_state = ATOM_ISP_POWER_UP;
6232 	spin_unlock_irqrestore(&isp->lock, flags);
6233 
6234 	return 0;
6235 }
6236 
6237 int atomisp_exif_makernote(struct atomisp_sub_device *asd,
6238 			   struct atomisp_makernote_info *config)
6239 {
6240 	struct v4l2_control ctrl;
6241 	struct atomisp_device *isp = asd->isp;
6242 
6243 	ctrl.id = V4L2_CID_FOCAL_ABSOLUTE;
6244 	if (v4l2_g_ctrl
6245 	    (isp->inputs[asd->input_curr].camera->ctrl_handler, &ctrl)) {
6246 		dev_warn(isp->dev, "failed to g_ctrl for focal length\n");
6247 		return -EINVAL;
6248 	} else {
6249 		config->focal_length = ctrl.value;
6250 	}
6251 
6252 	ctrl.id = V4L2_CID_FNUMBER_ABSOLUTE;
6253 	if (v4l2_g_ctrl
6254 	    (isp->inputs[asd->input_curr].camera->ctrl_handler, &ctrl)) {
6255 		dev_warn(isp->dev, "failed to g_ctrl for f-number\n");
6256 		return -EINVAL;
6257 	} else {
6258 		config->f_number_curr = ctrl.value;
6259 	}
6260 
6261 	ctrl.id = V4L2_CID_FNUMBER_RANGE;
6262 	if (v4l2_g_ctrl
6263 	    (isp->inputs[asd->input_curr].camera->ctrl_handler, &ctrl)) {
6264 		dev_warn(isp->dev, "failed to g_ctrl for f number range\n");
6265 		return -EINVAL;
6266 	} else {
6267 		config->f_number_range = ctrl.value;
6268 	}
6269 
6270 	return 0;
6271 }
6272 
6273 int atomisp_offline_capture_configure(struct atomisp_sub_device *asd,
6274 				      struct atomisp_cont_capture_conf *cvf_config)
6275 {
6276 	struct v4l2_ctrl *c;
6277 
6278 	/*
6279 	* In case of M10MO ZSL capture case, we need to issue a separate
6280 	* capture request to M10MO which will output captured jpeg image
6281 	*/
6282 	c = v4l2_ctrl_find(
6283 		asd->isp->inputs[asd->input_curr].camera->ctrl_handler,
6284 		V4L2_CID_START_ZSL_CAPTURE);
6285 	if (c) {
6286 		int ret;
6287 
6288 		dev_dbg(asd->isp->dev, "%s trigger ZSL capture request\n",
6289 			__func__);
6290 		/* TODO: use the cvf_config */
6291 		ret = v4l2_ctrl_s_ctrl(c, 1);
6292 		if (ret)
6293 			return ret;
6294 
6295 		return v4l2_ctrl_s_ctrl(c, 0);
6296 	}
6297 
6298 	asd->params.offline_parm = *cvf_config;
6299 
6300 	if (asd->params.offline_parm.num_captures) {
6301 		if (asd->streaming == ATOMISP_DEVICE_STREAMING_DISABLED) {
6302 			unsigned int init_raw_num;
6303 
6304 			if (asd->enable_raw_buffer_lock->val) {
6305 				init_raw_num =
6306 				    ATOMISP_CSS2_NUM_OFFLINE_INIT_CONTINUOUS_FRAMES_LOCK_EN;
6307 				if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO &&
6308 				    asd->params.video_dis_en)
6309 					init_raw_num +=
6310 					    ATOMISP_CSS2_NUM_DVS_FRAME_DELAY;
6311 			} else {
6312 				init_raw_num =
6313 				    ATOMISP_CSS2_NUM_OFFLINE_INIT_CONTINUOUS_FRAMES;
6314 			}
6315 
6316 			/* TODO: this can be removed once user-space
6317 			 *       has been updated to use control API */
6318 			asd->continuous_raw_buffer_size->val =
6319 			    max_t(int,
6320 				  asd->continuous_raw_buffer_size->val,
6321 				  asd->params.offline_parm.
6322 				  num_captures + init_raw_num);
6323 			asd->continuous_raw_buffer_size->val =
6324 			    min_t(int, ATOMISP_CONT_RAW_FRAMES,
6325 				  asd->continuous_raw_buffer_size->val);
6326 		}
6327 		asd->continuous_mode->val = true;
6328 	} else {
6329 		asd->continuous_mode->val = false;
6330 		__enable_continuous_mode(asd, false);
6331 	}
6332 
6333 	return 0;
6334 }
6335 
6336 /*
6337  * set auto exposure metering window to camera sensor
6338  */
6339 int atomisp_s_ae_window(struct atomisp_sub_device *asd,
6340 			struct atomisp_ae_window *arg)
6341 {
6342 	struct atomisp_device *isp = asd->isp;
6343 	/* Coverity CID 298071 - initialzize struct */
6344 	struct v4l2_subdev_selection sel = { 0 };
6345 
6346 	sel.r.left = arg->x_left;
6347 	sel.r.top = arg->y_top;
6348 	sel.r.width = arg->x_right - arg->x_left + 1;
6349 	sel.r.height = arg->y_bottom - arg->y_top + 1;
6350 
6351 	if (v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
6352 			     pad, set_selection, NULL, &sel)) {
6353 		dev_err(isp->dev, "failed to call sensor set_selection.\n");
6354 		return -EINVAL;
6355 	}
6356 
6357 	return 0;
6358 }
6359 
6360 int atomisp_flash_enable(struct atomisp_sub_device *asd, int num_frames)
6361 {
6362 	struct atomisp_device *isp = asd->isp;
6363 
6364 	if (num_frames < 0) {
6365 		dev_dbg(isp->dev, "%s ERROR: num_frames: %d\n", __func__,
6366 			num_frames);
6367 		return -EINVAL;
6368 	}
6369 	/* a requested flash is still in progress. */
6370 	if (num_frames && asd->params.flash_state != ATOMISP_FLASH_IDLE) {
6371 		dev_dbg(isp->dev, "%s flash busy: %d frames left: %d\n",
6372 			__func__, asd->params.flash_state,
6373 			asd->params.num_flash_frames);
6374 		return -EBUSY;
6375 	}
6376 
6377 	asd->params.num_flash_frames = num_frames;
6378 	asd->params.flash_state = ATOMISP_FLASH_REQUESTED;
6379 	return 0;
6380 }
6381 
6382 int atomisp_source_pad_to_stream_id(struct atomisp_sub_device *asd,
6383 				    uint16_t source_pad)
6384 {
6385 	int stream_id;
6386 	struct atomisp_device *isp = asd->isp;
6387 
6388 	if (isp->inputs[asd->input_curr].camera_caps->
6389 	    sensor[asd->sensor_curr].stream_num == 1)
6390 		return ATOMISP_INPUT_STREAM_GENERAL;
6391 
6392 	switch (source_pad) {
6393 	case ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE:
6394 		stream_id = ATOMISP_INPUT_STREAM_CAPTURE;
6395 		break;
6396 	case ATOMISP_SUBDEV_PAD_SOURCE_VF:
6397 		stream_id = ATOMISP_INPUT_STREAM_POSTVIEW;
6398 		break;
6399 	case ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW:
6400 		stream_id = ATOMISP_INPUT_STREAM_PREVIEW;
6401 		break;
6402 	case ATOMISP_SUBDEV_PAD_SOURCE_VIDEO:
6403 		stream_id = ATOMISP_INPUT_STREAM_VIDEO;
6404 		break;
6405 	default:
6406 		stream_id = ATOMISP_INPUT_STREAM_GENERAL;
6407 	}
6408 
6409 	return stream_id;
6410 }
6411 
6412 bool atomisp_is_vf_pipe(struct atomisp_video_pipe *pipe)
6413 {
6414 	struct atomisp_sub_device *asd = pipe->asd;
6415 
6416 	if (!asd) {
6417 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
6418 			__func__, pipe->vdev.name);
6419 		return false;
6420 	}
6421 
6422 	if (pipe == &asd->video_out_vf)
6423 		return true;
6424 
6425 	if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO &&
6426 	    pipe == &asd->video_out_preview)
6427 		return true;
6428 
6429 	return false;
6430 }
6431 
6432 static int __checking_exp_id(struct atomisp_sub_device *asd, int exp_id)
6433 {
6434 	struct atomisp_device *isp = asd->isp;
6435 
6436 	if (!asd->enable_raw_buffer_lock->val) {
6437 		dev_warn(isp->dev, "%s Raw Buffer Lock is disable.\n", __func__);
6438 		return -EINVAL;
6439 	}
6440 	if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED) {
6441 		dev_err(isp->dev, "%s streaming %d invalid exp_id %d.\n",
6442 			__func__, exp_id, asd->streaming);
6443 		return -EINVAL;
6444 	}
6445 	if ((exp_id > ATOMISP_MAX_EXP_ID) || (exp_id <= 0)) {
6446 		dev_err(isp->dev, "%s exp_id %d invalid.\n", __func__, exp_id);
6447 		return -EINVAL;
6448 	}
6449 	return 0;
6450 }
6451 
6452 void atomisp_init_raw_buffer_bitmap(struct atomisp_sub_device *asd)
6453 {
6454 	unsigned long flags;
6455 
6456 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
6457 	memset(asd->raw_buffer_bitmap, 0, sizeof(asd->raw_buffer_bitmap));
6458 	asd->raw_buffer_locked_count = 0;
6459 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
6460 }
6461 
6462 int atomisp_set_raw_buffer_bitmap(struct atomisp_sub_device *asd, int exp_id)
6463 {
6464 	int *bitmap, bit;
6465 	unsigned long flags;
6466 
6467 	if (__checking_exp_id(asd, exp_id))
6468 		return -EINVAL;
6469 
6470 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
6471 	bit = exp_id % 32;
6472 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
6473 	(*bitmap) |= (1 << bit);
6474 	asd->raw_buffer_locked_count++;
6475 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
6476 
6477 	dev_dbg(asd->isp->dev, "%s: exp_id %d,  raw_buffer_locked_count %d\n",
6478 		__func__, exp_id, asd->raw_buffer_locked_count);
6479 
6480 	/* Check if the raw buffer after next is still locked!!! */
6481 	exp_id += 2;
6482 	if (exp_id > ATOMISP_MAX_EXP_ID)
6483 		exp_id -= ATOMISP_MAX_EXP_ID;
6484 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
6485 	bit = exp_id % 32;
6486 	if ((*bitmap) & (1 << bit)) {
6487 		int ret;
6488 
6489 		/* WORKAROUND unlock the raw buffer compulsively */
6490 		ret = atomisp_css_exp_id_unlock(asd, exp_id);
6491 		if (ret) {
6492 			dev_err(asd->isp->dev,
6493 				"%s exp_id is wrapping back to %d but force unlock failed, err %d.\n",
6494 				__func__, exp_id, ret);
6495 			return ret;
6496 		}
6497 
6498 		spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
6499 		(*bitmap) &= ~(1 << bit);
6500 		asd->raw_buffer_locked_count--;
6501 		spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
6502 		dev_warn(asd->isp->dev,
6503 			 "%s exp_id is wrapping back to %d but it is still locked so force unlock it, raw_buffer_locked_count %d\n",
6504 			 __func__, exp_id, asd->raw_buffer_locked_count);
6505 	}
6506 	return 0;
6507 }
6508 
6509 static int __is_raw_buffer_locked(struct atomisp_sub_device *asd, int exp_id)
6510 {
6511 	int *bitmap, bit;
6512 	unsigned long flags;
6513 	int ret;
6514 
6515 	if (__checking_exp_id(asd, exp_id))
6516 		return -EINVAL;
6517 
6518 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
6519 	bit = exp_id % 32;
6520 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
6521 	ret = ((*bitmap) & (1 << bit));
6522 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
6523 	return !ret;
6524 }
6525 
6526 static int __clear_raw_buffer_bitmap(struct atomisp_sub_device *asd, int exp_id)
6527 {
6528 	int *bitmap, bit;
6529 	unsigned long flags;
6530 
6531 	if (__is_raw_buffer_locked(asd, exp_id))
6532 		return -EINVAL;
6533 
6534 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
6535 	bit = exp_id % 32;
6536 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
6537 	(*bitmap) &= ~(1 << bit);
6538 	asd->raw_buffer_locked_count--;
6539 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
6540 
6541 	dev_dbg(asd->isp->dev, "%s: exp_id %d,  raw_buffer_locked_count %d\n",
6542 		__func__, exp_id, asd->raw_buffer_locked_count);
6543 	return 0;
6544 }
6545 
6546 int atomisp_exp_id_capture(struct atomisp_sub_device *asd, int *exp_id)
6547 {
6548 	struct atomisp_device *isp = asd->isp;
6549 	int value = *exp_id;
6550 	int ret;
6551 
6552 	ret = __is_raw_buffer_locked(asd, value);
6553 	if (ret) {
6554 		dev_err(isp->dev, "%s exp_id %d invalid %d.\n", __func__, value, ret);
6555 		return -EINVAL;
6556 	}
6557 
6558 	dev_dbg(isp->dev, "%s exp_id %d\n", __func__, value);
6559 	ret = atomisp_css_exp_id_capture(asd, value);
6560 	if (ret) {
6561 		dev_err(isp->dev, "%s exp_id %d failed.\n", __func__, value);
6562 		return -EIO;
6563 	}
6564 	return 0;
6565 }
6566 
6567 int atomisp_exp_id_unlock(struct atomisp_sub_device *asd, int *exp_id)
6568 {
6569 	struct atomisp_device *isp = asd->isp;
6570 	int value = *exp_id;
6571 	int ret;
6572 
6573 	ret = __clear_raw_buffer_bitmap(asd, value);
6574 	if (ret) {
6575 		dev_err(isp->dev, "%s exp_id %d invalid %d.\n", __func__, value, ret);
6576 		return -EINVAL;
6577 	}
6578 
6579 	dev_dbg(isp->dev, "%s exp_id %d\n", __func__, value);
6580 	ret = atomisp_css_exp_id_unlock(asd, value);
6581 	if (ret)
6582 		dev_err(isp->dev, "%s exp_id %d failed, err %d.\n",
6583 			__func__, value, ret);
6584 
6585 	return ret;
6586 }
6587 
6588 int atomisp_enable_dz_capt_pipe(struct atomisp_sub_device *asd,
6589 				unsigned int *enable)
6590 {
6591 	bool value;
6592 
6593 	if (!enable)
6594 		return -EINVAL;
6595 
6596 	value = *enable > 0;
6597 
6598 	atomisp_en_dz_capt_pipe(asd, value);
6599 
6600 	return 0;
6601 }
6602 
6603 int atomisp_inject_a_fake_event(struct atomisp_sub_device *asd, int *event)
6604 {
6605 	if (!event || asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
6606 		return -EINVAL;
6607 
6608 	dev_dbg(asd->isp->dev, "%s: trying to inject a fake event 0x%x\n",
6609 		__func__, *event);
6610 
6611 	switch (*event) {
6612 	case V4L2_EVENT_FRAME_SYNC:
6613 		atomisp_sof_event(asd);
6614 		break;
6615 	case V4L2_EVENT_FRAME_END:
6616 		atomisp_eof_event(asd, 0);
6617 		break;
6618 	case V4L2_EVENT_ATOMISP_3A_STATS_READY:
6619 		atomisp_3a_stats_ready_event(asd, 0);
6620 		break;
6621 	case V4L2_EVENT_ATOMISP_METADATA_READY:
6622 		atomisp_metadata_ready_event(asd, 0);
6623 		break;
6624 	default:
6625 		return -EINVAL;
6626 	}
6627 
6628 	return 0;
6629 }
6630 
6631 static int atomisp_get_pipe_id(struct atomisp_video_pipe *pipe)
6632 {
6633 	struct atomisp_sub_device *asd = pipe->asd;
6634 
6635 	if (!asd) {
6636 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
6637 			__func__, pipe->vdev.name);
6638 		return -EINVAL;
6639 	}
6640 
6641 	if (ATOMISP_USE_YUVPP(asd)) {
6642 		return IA_CSS_PIPE_ID_YUVPP;
6643 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
6644 		return IA_CSS_PIPE_ID_VIDEO;
6645 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
6646 		return IA_CSS_PIPE_ID_CAPTURE;
6647 	} else if (pipe == &asd->video_out_video_capture) {
6648 		return IA_CSS_PIPE_ID_VIDEO;
6649 	} else if (pipe == &asd->video_out_vf) {
6650 		return IA_CSS_PIPE_ID_CAPTURE;
6651 	} else if (pipe == &asd->video_out_preview) {
6652 		if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO)
6653 			return IA_CSS_PIPE_ID_VIDEO;
6654 		else
6655 			return IA_CSS_PIPE_ID_PREVIEW;
6656 	} else if (pipe == &asd->video_out_capture) {
6657 		if (asd->copy_mode)
6658 			return IA_CSS_PIPE_ID_COPY;
6659 		else
6660 			return IA_CSS_PIPE_ID_CAPTURE;
6661 	}
6662 
6663 	/* fail through */
6664 	dev_warn(asd->isp->dev, "%s failed to find proper pipe\n",
6665 		 __func__);
6666 	return IA_CSS_PIPE_ID_CAPTURE;
6667 }
6668 
6669 int atomisp_get_invalid_frame_num(struct video_device *vdev,
6670 				  int *invalid_frame_num)
6671 {
6672 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
6673 	struct atomisp_sub_device *asd = pipe->asd;
6674 	enum ia_css_pipe_id pipe_id;
6675 	struct ia_css_pipe_info p_info;
6676 	int ret;
6677 
6678 	if (!asd) {
6679 		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
6680 			__func__, vdev->name);
6681 		return -EINVAL;
6682 	}
6683 
6684 	if (asd->isp->inputs[asd->input_curr].camera_caps->
6685 	    sensor[asd->sensor_curr].stream_num > 1) {
6686 		/* External ISP */
6687 		*invalid_frame_num = 0;
6688 		return 0;
6689 	}
6690 
6691 	pipe_id = atomisp_get_pipe_id(pipe);
6692 	if (!asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].pipes[pipe_id]) {
6693 		dev_warn(asd->isp->dev,
6694 			 "%s pipe %d has not been created yet, do SET_FMT first!\n",
6695 			 __func__, pipe_id);
6696 		return -EINVAL;
6697 	}
6698 
6699 	ret = ia_css_pipe_get_info(
6700 		  asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL]
6701 		  .pipes[pipe_id], &p_info);
6702 	if (!ret) {
6703 		*invalid_frame_num = p_info.num_invalid_frames;
6704 		return 0;
6705 	} else {
6706 		dev_warn(asd->isp->dev, "%s get pipe infor failed %d\n",
6707 			 __func__, ret);
6708 		return -EINVAL;
6709 	}
6710 }
6711