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 
21 #include <linux/delay.h>
22 #include <linux/pci.h>
23 
24 #include <media/v4l2-ioctl.h>
25 #include <media/v4l2-event.h>
26 
27 #include "atomisp_cmd.h"
28 #include "atomisp_common.h"
29 #include "atomisp_fops.h"
30 #include "atomisp_internal.h"
31 #include "atomisp_ioctl.h"
32 #include "atomisp-regs.h"
33 #include "atomisp_compat.h"
34 
35 #include "sh_css_hrt.h"
36 
37 #include "gp_device.h"
38 #include "device_access.h"
39 #include "irq.h"
40 
41 static const char *DRIVER = "atomisp";	/* max size 15 */
42 static const char *CARD = "ATOM ISP";	/* max size 31 */
43 
44 /*
45  * FIXME: ISP should not know beforehand all CIDs supported by sensor.
46  * Instead, it needs to propagate to sensor unkonwn CIDs.
47  */
48 static struct v4l2_queryctrl ci_v4l2_controls[] = {
49 	{
50 		.id = V4L2_CID_AUTO_WHITE_BALANCE,
51 		.type = V4L2_CTRL_TYPE_BOOLEAN,
52 		.name = "Automatic White Balance",
53 		.minimum = 0,
54 		.maximum = 1,
55 		.step = 1,
56 		.default_value = 0,
57 	},
58 	{
59 		.id = V4L2_CID_RED_BALANCE,
60 		.type = V4L2_CTRL_TYPE_INTEGER,
61 		.name = "Red Balance",
62 		.minimum = 0x00,
63 		.maximum = 0xff,
64 		.step = 1,
65 		.default_value = 0x00,
66 	},
67 	{
68 		.id = V4L2_CID_BLUE_BALANCE,
69 		.type = V4L2_CTRL_TYPE_INTEGER,
70 		.name = "Blue Balance",
71 		.minimum = 0x00,
72 		.maximum = 0xff,
73 		.step = 1,
74 		.default_value = 0x00,
75 	},
76 	{
77 		.id = V4L2_CID_GAMMA,
78 		.type = V4L2_CTRL_TYPE_INTEGER,
79 		.name = "Gamma",
80 		.minimum = 0x00,
81 		.maximum = 0xff,
82 		.step = 1,
83 		.default_value = 0x00,
84 	},
85 	{
86 		.id = V4L2_CID_POWER_LINE_FREQUENCY,
87 		.type = V4L2_CTRL_TYPE_MENU,
88 		.name = "Light frequency filter",
89 		.minimum = 1,
90 		.maximum = 2,
91 		.step = 1,
92 		.default_value = 1,
93 	},
94 	{
95 		.id = V4L2_CID_COLORFX,
96 		.type = V4L2_CTRL_TYPE_INTEGER,
97 		.name = "Image Color Effect",
98 		.minimum = 0,
99 		.maximum = 9,
100 		.step = 1,
101 		.default_value = 0,
102 	},
103 	{
104 		.id = V4L2_CID_COLORFX_CBCR,
105 		.type = V4L2_CTRL_TYPE_INTEGER,
106 		.name = "Image Color Effect CbCr",
107 		.minimum = 0,
108 		.maximum = 0xffff,
109 		.step = 1,
110 		.default_value = 0,
111 	},
112 	{
113 		.id = V4L2_CID_ATOMISP_BAD_PIXEL_DETECTION,
114 		.type = V4L2_CTRL_TYPE_INTEGER,
115 		.name = "Bad Pixel Correction",
116 		.minimum = 0,
117 		.maximum = 1,
118 		.step = 1,
119 		.default_value = 0,
120 	},
121 	{
122 		.id = V4L2_CID_ATOMISP_POSTPROCESS_GDC_CAC,
123 		.type = V4L2_CTRL_TYPE_INTEGER,
124 		.name = "GDC/CAC",
125 		.minimum = 0,
126 		.maximum = 1,
127 		.step = 1,
128 		.default_value = 0,
129 	},
130 	{
131 		.id = V4L2_CID_ATOMISP_VIDEO_STABLIZATION,
132 		.type = V4L2_CTRL_TYPE_INTEGER,
133 		.name = "Video Stablization",
134 		.minimum = 0,
135 		.maximum = 1,
136 		.step = 1,
137 		.default_value = 0,
138 	},
139 	{
140 		.id = V4L2_CID_ATOMISP_FIXED_PATTERN_NR,
141 		.type = V4L2_CTRL_TYPE_INTEGER,
142 		.name = "Fixed Pattern Noise Reduction",
143 		.minimum = 0,
144 		.maximum = 1,
145 		.step = 1,
146 		.default_value = 0,
147 	},
148 	{
149 		.id = V4L2_CID_ATOMISP_FALSE_COLOR_CORRECTION,
150 		.type = V4L2_CTRL_TYPE_INTEGER,
151 		.name = "False Color Correction",
152 		.minimum = 0,
153 		.maximum = 1,
154 		.step = 1,
155 		.default_value = 0,
156 	},
157 	{
158 		.id = V4L2_CID_REQUEST_FLASH,
159 		.type = V4L2_CTRL_TYPE_INTEGER,
160 		.name = "Request flash frames",
161 		.minimum = 0,
162 		.maximum = 10,
163 		.step = 1,
164 		.default_value = 1,
165 	},
166 	{
167 		.id = V4L2_CID_ATOMISP_LOW_LIGHT,
168 		.type = V4L2_CTRL_TYPE_BOOLEAN,
169 		.name = "Low light mode",
170 		.minimum = 0,
171 		.maximum = 1,
172 		.step = 1,
173 		.default_value = 1,
174 	},
175 	{
176 		.id = V4L2_CID_2A_STATUS,
177 		.type = V4L2_CTRL_TYPE_BITMASK,
178 		.name = "AE and AWB status",
179 		.minimum = 0,
180 		.maximum = V4L2_2A_STATUS_AE_READY | V4L2_2A_STATUS_AWB_READY,
181 		.step = 1,
182 		.default_value = 0,
183 	},
184 	{
185 		.id = V4L2_CID_EXPOSURE,
186 		.type = V4L2_CTRL_TYPE_INTEGER,
187 		.name = "exposure",
188 		.minimum = -4,
189 		.maximum = 4,
190 		.step = 1,
191 		.default_value = 0,
192 	},
193 	{
194 		.id = V4L2_CID_EXPOSURE_ZONE_NUM,
195 		.type = V4L2_CTRL_TYPE_INTEGER,
196 		.name = "one-time exposure zone number",
197 		.minimum = 0x0,
198 		.maximum = 0xffff,
199 		.step = 1,
200 		.default_value = 0,
201 	},
202 	{
203 		.id = V4L2_CID_EXPOSURE_AUTO_PRIORITY,
204 		.type = V4L2_CTRL_TYPE_INTEGER,
205 		.name = "Exposure auto priority",
206 		.minimum = V4L2_EXPOSURE_AUTO,
207 		.maximum = V4L2_EXPOSURE_APERTURE_PRIORITY,
208 		.step = 1,
209 		.default_value = V4L2_EXPOSURE_AUTO,
210 	},
211 	{
212 		.id = V4L2_CID_SCENE_MODE,
213 		.type = V4L2_CTRL_TYPE_INTEGER,
214 		.name = "scene mode",
215 		.minimum = 0,
216 		.maximum = 13,
217 		.step = 1,
218 		.default_value = 0,
219 	},
220 	{
221 		.id = V4L2_CID_ISO_SENSITIVITY,
222 		.type = V4L2_CTRL_TYPE_INTEGER,
223 		.name = "iso",
224 		.minimum = -4,
225 		.maximum = 4,
226 		.step = 1,
227 		.default_value = 0,
228 	},
229 	{
230 		.id = V4L2_CID_ISO_SENSITIVITY_AUTO,
231 		.type = V4L2_CTRL_TYPE_INTEGER,
232 		.name = "iso mode",
233 		.minimum = V4L2_ISO_SENSITIVITY_MANUAL,
234 		.maximum = V4L2_ISO_SENSITIVITY_AUTO,
235 		.step = 1,
236 		.default_value = V4L2_ISO_SENSITIVITY_AUTO,
237 	},
238 	{
239 		.id = V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
240 		.type = V4L2_CTRL_TYPE_INTEGER,
241 		.name = "white balance",
242 		.minimum = 0,
243 		.maximum = 9,
244 		.step = 1,
245 		.default_value = 0,
246 	},
247 	{
248 		.id = V4L2_CID_EXPOSURE_METERING,
249 		.type = V4L2_CTRL_TYPE_MENU,
250 		.name = "metering",
251 		.minimum = 0,
252 		.maximum = 3,
253 		.step = 1,
254 		.default_value = 1,
255 	},
256 	{
257 		.id = V4L2_CID_3A_LOCK,
258 		.type = V4L2_CTRL_TYPE_BITMASK,
259 		.name = "3a lock",
260 		.minimum = 0,
261 		.maximum = V4L2_LOCK_EXPOSURE | V4L2_LOCK_WHITE_BALANCE
262 		| V4L2_LOCK_FOCUS,
263 		.step = 1,
264 		.default_value = 0,
265 	},
266 	{
267 		.id = V4L2_CID_TEST_PATTERN,
268 		.type = V4L2_CTRL_TYPE_INTEGER,
269 		.name = "Test Pattern",
270 		.minimum = 0,
271 		.maximum = 0xffff,
272 		.step = 1,
273 		.default_value = 0,
274 	},
275 	{
276 		.id = V4L2_CID_TEST_PATTERN_COLOR_R,
277 		.type = V4L2_CTRL_TYPE_INTEGER,
278 		.name = "Test Pattern Solid Color R",
279 		.minimum = INT_MIN,
280 		.maximum = INT_MAX,
281 		.step = 1,
282 		.default_value = 0,
283 	},
284 	{
285 		.id = V4L2_CID_TEST_PATTERN_COLOR_GR,
286 		.type = V4L2_CTRL_TYPE_INTEGER,
287 		.name = "Test Pattern Solid Color GR",
288 		.minimum = INT_MIN,
289 		.maximum = INT_MAX,
290 		.step = 1,
291 		.default_value = 0,
292 	},
293 	{
294 		.id = V4L2_CID_TEST_PATTERN_COLOR_GB,
295 		.type = V4L2_CTRL_TYPE_INTEGER,
296 		.name = "Test Pattern Solid Color GB",
297 		.minimum = INT_MIN,
298 		.maximum = INT_MAX,
299 		.step = 1,
300 		.default_value = 0,
301 	},
302 	{
303 		.id = V4L2_CID_TEST_PATTERN_COLOR_B,
304 		.type = V4L2_CTRL_TYPE_INTEGER,
305 		.name = "Test Pattern Solid Color B",
306 		.minimum = INT_MIN,
307 		.maximum = INT_MAX,
308 		.step = 1,
309 		.default_value = 0,
310 	},
311 };
312 
313 static const u32 ctrls_num = ARRAY_SIZE(ci_v4l2_controls);
314 
315 /*
316  * supported V4L2 fmts and resolutions
317  */
318 const struct atomisp_format_bridge atomisp_output_fmts[] = {
319 	{
320 		.pixelformat = V4L2_PIX_FMT_YUV420,
321 		.depth = 12,
322 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_YUV420,
323 		.sh_fmt = IA_CSS_FRAME_FORMAT_YUV420,
324 		.description = "YUV420, planar",
325 		.planar = true
326 	}, {
327 		.pixelformat = V4L2_PIX_FMT_YVU420,
328 		.depth = 12,
329 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_YVU420,
330 		.sh_fmt = IA_CSS_FRAME_FORMAT_YV12,
331 		.description = "YVU420, planar",
332 		.planar = true
333 	}, {
334 		.pixelformat = V4L2_PIX_FMT_YUV422P,
335 		.depth = 16,
336 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_YUV422P,
337 		.sh_fmt = IA_CSS_FRAME_FORMAT_YUV422,
338 		.description = "YUV422, planar",
339 		.planar = true
340 	}, {
341 		.pixelformat = V4L2_PIX_FMT_YUV444,
342 		.depth = 24,
343 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_YUV444,
344 		.sh_fmt = IA_CSS_FRAME_FORMAT_YUV444,
345 		.description = "YUV444"
346 	}, {
347 		.pixelformat = V4L2_PIX_FMT_NV12,
348 		.depth = 12,
349 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_NV12,
350 		.sh_fmt = IA_CSS_FRAME_FORMAT_NV12,
351 		.description = "NV12, Y-plane, CbCr interleaved",
352 		.planar = true
353 	}, {
354 		.pixelformat = V4L2_PIX_FMT_NV21,
355 		.depth = 12,
356 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_NV21,
357 		.sh_fmt = IA_CSS_FRAME_FORMAT_NV21,
358 		.description = "NV21, Y-plane, CbCr interleaved",
359 		.planar = true
360 	}, {
361 		.pixelformat = V4L2_PIX_FMT_NV16,
362 		.depth = 16,
363 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_NV16,
364 		.sh_fmt = IA_CSS_FRAME_FORMAT_NV16,
365 		.description = "NV16, Y-plane, CbCr interleaved",
366 		.planar = true
367 	}, {
368 		.pixelformat = V4L2_PIX_FMT_YUYV,
369 		.depth = 16,
370 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_YUYV,
371 		.sh_fmt = IA_CSS_FRAME_FORMAT_YUYV,
372 		.description = "YUYV, interleaved"
373 	}, {
374 		.pixelformat = V4L2_PIX_FMT_UYVY,
375 		.depth = 16,
376 		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
377 		.sh_fmt = IA_CSS_FRAME_FORMAT_UYVY,
378 		.description = "UYVY, interleaved"
379 	}, { /* This one is for parallel sensors! DO NOT USE! */
380 		.pixelformat = V4L2_PIX_FMT_UYVY,
381 		.depth = 16,
382 		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
383 		.sh_fmt = IA_CSS_FRAME_FORMAT_UYVY,
384 		.description = "UYVY, interleaved"
385 	}, {
386 		.pixelformat = V4L2_PIX_FMT_SBGGR16,
387 		.depth = 16,
388 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_SBGGR16,
389 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
390 		.description = "Bayer 16"
391 	}, {
392 		.pixelformat = V4L2_PIX_FMT_SBGGR8,
393 		.depth = 8,
394 		.mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
395 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
396 		.description = "Bayer 8"
397 	}, {
398 		.pixelformat = V4L2_PIX_FMT_SGBRG8,
399 		.depth = 8,
400 		.mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
401 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
402 		.description = "Bayer 8"
403 	}, {
404 		.pixelformat = V4L2_PIX_FMT_SGRBG8,
405 		.depth = 8,
406 		.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
407 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
408 		.description = "Bayer 8"
409 	}, {
410 		.pixelformat = V4L2_PIX_FMT_SRGGB8,
411 		.depth = 8,
412 		.mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
413 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
414 		.description = "Bayer 8"
415 	}, {
416 		.pixelformat = V4L2_PIX_FMT_SBGGR10,
417 		.depth = 16,
418 		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
419 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
420 		.description = "Bayer 10"
421 	}, {
422 		.pixelformat = V4L2_PIX_FMT_SGBRG10,
423 		.depth = 16,
424 		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
425 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
426 		.description = "Bayer 10"
427 	}, {
428 		.pixelformat = V4L2_PIX_FMT_SGRBG10,
429 		.depth = 16,
430 		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
431 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
432 		.description = "Bayer 10"
433 	}, {
434 		.pixelformat = V4L2_PIX_FMT_SRGGB10,
435 		.depth = 16,
436 		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
437 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
438 		.description = "Bayer 10"
439 	}, {
440 		.pixelformat = V4L2_PIX_FMT_SBGGR12,
441 		.depth = 16,
442 		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
443 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
444 		.description = "Bayer 12"
445 	}, {
446 		.pixelformat = V4L2_PIX_FMT_SGBRG12,
447 		.depth = 16,
448 		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
449 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
450 		.description = "Bayer 12"
451 	}, {
452 		.pixelformat = V4L2_PIX_FMT_SGRBG12,
453 		.depth = 16,
454 		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
455 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
456 		.description = "Bayer 12"
457 	}, {
458 		.pixelformat = V4L2_PIX_FMT_SRGGB12,
459 		.depth = 16,
460 		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
461 		.sh_fmt = IA_CSS_FRAME_FORMAT_RAW,
462 		.description = "Bayer 12"
463 	}, {
464 		.pixelformat = V4L2_PIX_FMT_RGB32,
465 		.depth = 32,
466 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_RGB32,
467 		.sh_fmt = IA_CSS_FRAME_FORMAT_RGBA888,
468 		.description = "32 RGB 8-8-8-8"
469 	}, {
470 		.pixelformat = V4L2_PIX_FMT_RGB565,
471 		.depth = 16,
472 		.mbus_code = MEDIA_BUS_FMT_BGR565_2X8_LE,
473 		.sh_fmt = IA_CSS_FRAME_FORMAT_RGB565,
474 		.description = "16 RGB 5-6-5"
475 #if 0
476 	}, {
477 		.pixelformat = V4L2_PIX_FMT_JPEG,
478 		.depth = 8,
479 		.mbus_code = MEDIA_BUS_FMT_JPEG_1X8,
480 		.sh_fmt = IA_CSS_FRAME_FORMAT_BINARY_8,
481 		.description = "JPEG"
482 	}, {
483 		/* This is a custom format being used by M10MO to send the RAW data */
484 		.pixelformat = V4L2_PIX_FMT_CUSTOM_M10MO_RAW,
485 		.depth = 8,
486 		.mbus_code = V4L2_MBUS_FMT_CUSTOM_M10MO_RAW,
487 		.sh_fmt = IA_CSS_FRAME_FORMAT_BINARY_8,
488 		.description = "Custom RAW for M10MO"
489 #endif
490 	},
491 };
492 
493 const struct atomisp_format_bridge *
494 atomisp_get_format_bridge(unsigned int pixelformat)
495 {
496 	unsigned int i;
497 
498 	for (i = 0; i < ARRAY_SIZE(atomisp_output_fmts); i++) {
499 		if (atomisp_output_fmts[i].pixelformat == pixelformat)
500 			return &atomisp_output_fmts[i];
501 	}
502 
503 	return NULL;
504 }
505 
506 const struct atomisp_format_bridge *
507 atomisp_get_format_bridge_from_mbus(u32 mbus_code)
508 {
509 	unsigned int i;
510 
511 	for (i = 0; i < ARRAY_SIZE(atomisp_output_fmts); i++) {
512 		if (mbus_code == atomisp_output_fmts[i].mbus_code)
513 			return &atomisp_output_fmts[i];
514 	}
515 
516 	return NULL;
517 }
518 
519 int atomisp_pipe_check(struct atomisp_video_pipe *pipe, bool settings_change)
520 {
521 	lockdep_assert_held(&pipe->isp->mutex);
522 
523 	if (pipe->isp->isp_fatal_error)
524 		return -EIO;
525 
526 	if (settings_change && vb2_is_busy(&pipe->vb_queue)) {
527 		dev_err(pipe->isp->dev, "Set fmt/input IOCTL while streaming\n");
528 		return -EBUSY;
529 	}
530 
531 	switch (pipe->asd->streaming) {
532 	case ATOMISP_DEVICE_STREAMING_DISABLED:
533 		break;
534 	case ATOMISP_DEVICE_STREAMING_ENABLED:
535 		if (settings_change) {
536 			dev_err(pipe->isp->dev, "Set fmt/input IOCTL while streaming\n");
537 			return -EBUSY;
538 		}
539 		break;
540 	case ATOMISP_DEVICE_STREAMING_STOPPING:
541 		dev_err(pipe->isp->dev, "IOCTL issued while stopping\n");
542 		return -EBUSY;
543 	default:
544 		return -EINVAL;
545 	}
546 
547 	return 0;
548 }
549 
550 /*
551  * v4l2 ioctls
552  * return ISP capabilities
553  */
554 static int atomisp_querycap(struct file *file, void *fh,
555 			    struct v4l2_capability *cap)
556 {
557 	struct video_device *vdev = video_devdata(file);
558 	struct atomisp_device *isp = video_get_drvdata(vdev);
559 
560 	strscpy(cap->driver, DRIVER, sizeof(cap->driver));
561 	strscpy(cap->card, CARD, sizeof(cap->card));
562 	snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", dev_name(isp->dev));
563 
564 	return 0;
565 }
566 
567 /*
568  * enum input are used to check primary/secondary camera
569  */
570 static int atomisp_enum_input(struct file *file, void *fh,
571 			      struct v4l2_input *input)
572 {
573 	struct video_device *vdev = video_devdata(file);
574 	struct atomisp_device *isp = video_get_drvdata(vdev);
575 	int index = input->index;
576 	struct v4l2_subdev *motor;
577 
578 	if (index >= isp->input_cnt)
579 		return -EINVAL;
580 
581 	if (!isp->inputs[index].camera)
582 		return -EINVAL;
583 
584 	memset(input, 0, sizeof(struct v4l2_input));
585 	strscpy(input->name, isp->inputs[index].camera->name,
586 		sizeof(input->name));
587 
588 	/*
589 	 * HACK: append actuator's name to sensor's
590 	 * As currently userspace can't talk directly to subdev nodes, this
591 	 * ioctl is the only way to enum inputs + possible external actuators
592 	 * for 3A tuning purpose.
593 	 */
594 	if (!IS_ISP2401)
595 		motor = isp->inputs[index].motor;
596 	else
597 		motor = isp->motor;
598 
599 	if (motor && strlen(motor->name) > 0) {
600 		const int cur_len = strlen(input->name);
601 		const int max_size = sizeof(input->name) - cur_len - 1;
602 
603 		if (max_size > 1) {
604 			input->name[cur_len] = '+';
605 			strscpy(&input->name[cur_len + 1],
606 				motor->name, max_size);
607 		}
608 	}
609 
610 	input->type = V4L2_INPUT_TYPE_CAMERA;
611 	input->index = index;
612 	input->reserved[0] = isp->inputs[index].type;
613 	input->reserved[1] = isp->inputs[index].port;
614 
615 	return 0;
616 }
617 
618 static unsigned int
619 atomisp_subdev_streaming_count(struct atomisp_sub_device *asd)
620 {
621 	return vb2_start_streaming_called(&asd->video_out_preview.vb_queue) +
622 	       vb2_start_streaming_called(&asd->video_out_capture.vb_queue) +
623 	       vb2_start_streaming_called(&asd->video_out_video_capture.vb_queue) +
624 	       vb2_start_streaming_called(&asd->video_out_vf.vb_queue);
625 }
626 
627 unsigned int atomisp_streaming_count(struct atomisp_device *isp)
628 {
629 	unsigned int i, sum;
630 
631 	for (i = 0, sum = 0; i < isp->num_of_streams; i++)
632 		sum += isp->asd[i].streaming ==
633 		       ATOMISP_DEVICE_STREAMING_ENABLED;
634 
635 	return sum;
636 }
637 
638 /*
639  * get input are used to get current primary/secondary camera
640  */
641 static int atomisp_g_input(struct file *file, void *fh, unsigned int *input)
642 {
643 	struct video_device *vdev = video_devdata(file);
644 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
645 
646 	*input = asd->input_curr;
647 	return 0;
648 }
649 
650 static int atomisp_s_fmt_cap(struct file *file, void *fh,
651 			     struct v4l2_format *f)
652 {
653 	struct video_device *vdev = video_devdata(file);
654 
655 	return atomisp_set_fmt(vdev, f);
656 }
657 
658 /*
659  * set input are used to set current primary/secondary camera
660  */
661 static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
662 {
663 	struct video_device *vdev = video_devdata(file);
664 	struct atomisp_device *isp = video_get_drvdata(vdev);
665 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
666 	struct atomisp_sub_device *asd = pipe->asd;
667 	struct v4l2_subdev *camera = NULL;
668 	struct v4l2_subdev *motor;
669 	int ret;
670 
671 	ret = atomisp_pipe_check(pipe, true);
672 	if (ret)
673 		return ret;
674 
675 	if (input >= ATOM_ISP_MAX_INPUTS || input >= isp->input_cnt) {
676 		dev_dbg(isp->dev, "input_cnt: %d\n", isp->input_cnt);
677 		return -EINVAL;
678 	}
679 
680 	/*
681 	 * check whether the request camera:
682 	 * 1: already in use
683 	 * 2: if in use, whether it is used by other streams
684 	 */
685 	if (isp->inputs[input].asd && isp->inputs[input].asd != asd) {
686 		dev_err(isp->dev,
687 			"%s, camera is already used by stream: %d\n", __func__,
688 			isp->inputs[input].asd->index);
689 		return -EBUSY;
690 	}
691 
692 	camera = isp->inputs[input].camera;
693 	if (!camera) {
694 		dev_err(isp->dev, "%s, no camera\n", __func__);
695 		return -EINVAL;
696 	}
697 
698 	/* power off the current owned sensor, as it is not used this time */
699 	if (isp->inputs[asd->input_curr].asd == asd &&
700 	    asd->input_curr != input) {
701 		ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
702 				       core, s_power, 0);
703 		if (ret && ret != -ENOIOCTLCMD)
704 			dev_warn(isp->dev,
705 				 "Failed to power-off sensor\n");
706 		/* clear the asd field to show this camera is not used */
707 		isp->inputs[asd->input_curr].asd = NULL;
708 	}
709 
710 	/* powe on the new sensor */
711 	ret = v4l2_subdev_call(isp->inputs[input].camera, core, s_power, 1);
712 	if (ret && ret != -ENOIOCTLCMD) {
713 		dev_err(isp->dev, "Failed to power-on sensor\n");
714 		return ret;
715 	}
716 	/*
717 	 * Some sensor driver resets the run mode during power-on, thus force
718 	 * update the run mode to sensor after power-on.
719 	 */
720 	atomisp_update_run_mode(asd);
721 
722 	/* select operating sensor */
723 	ret = v4l2_subdev_call(isp->inputs[input].camera, video, s_routing,
724 			       0, isp->inputs[input].sensor_index, 0);
725 	if (ret && (ret != -ENOIOCTLCMD)) {
726 		dev_err(isp->dev, "Failed to select sensor\n");
727 		return ret;
728 	}
729 
730 	if (!IS_ISP2401) {
731 		motor = isp->inputs[input].motor;
732 	} else {
733 		motor = isp->motor;
734 		if (motor)
735 			ret = v4l2_subdev_call(motor, core, s_power, 1);
736 	}
737 
738 	if (motor)
739 		ret = v4l2_subdev_call(motor, core, init, 1);
740 
741 	asd->input_curr = input;
742 	/* mark this camera is used by the current stream */
743 	isp->inputs[input].asd = asd;
744 
745 	return 0;
746 }
747 
748 static int atomisp_enum_framesizes(struct file *file, void *priv,
749 				   struct v4l2_frmsizeenum *fsize)
750 {
751 	struct video_device *vdev = video_devdata(file);
752 	struct atomisp_device *isp = video_get_drvdata(vdev);
753 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
754 	struct v4l2_subdev_frame_size_enum fse = {
755 		.index = fsize->index,
756 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
757 	};
758 	int ret;
759 
760 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
761 			       pad, enum_frame_size, NULL, &fse);
762 	if (ret)
763 		return ret;
764 
765 	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
766 	fsize->discrete.width = fse.max_width - pad_w;
767 	fsize->discrete.height = fse.max_height - pad_h;
768 
769 	return 0;
770 }
771 
772 static int atomisp_enum_frameintervals(struct file *file, void *priv,
773 				       struct v4l2_frmivalenum *fival)
774 {
775 	struct video_device *vdev = video_devdata(file);
776 	struct atomisp_device *isp = video_get_drvdata(vdev);
777 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
778 	struct v4l2_subdev_frame_interval_enum fie = {
779 		.code	= atomisp_in_fmt_conv[0].code,
780 		.index = fival->index,
781 		.width = fival->width,
782 		.height = fival->height,
783 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
784 	};
785 	int ret;
786 
787 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
788 			       pad, enum_frame_interval, NULL,
789 			       &fie);
790 	if (ret)
791 		return ret;
792 
793 	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
794 	fival->discrete = fie.interval;
795 
796 	return ret;
797 }
798 
799 static int atomisp_enum_fmt_cap(struct file *file, void *fh,
800 				struct v4l2_fmtdesc *f)
801 {
802 	struct video_device *vdev = video_devdata(file);
803 	struct atomisp_device *isp = video_get_drvdata(vdev);
804 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
805 	struct v4l2_subdev_mbus_code_enum code = {
806 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
807 	};
808 	const struct atomisp_format_bridge *format;
809 	struct v4l2_subdev *camera;
810 	unsigned int i, fi = 0;
811 	int rval;
812 
813 	camera = isp->inputs[asd->input_curr].camera;
814 	if(!camera) {
815 		dev_err(isp->dev, "%s(): camera is NULL, device is %s\n",
816 			__func__, vdev->name);
817 		return -EINVAL;
818 	}
819 
820 	rval = v4l2_subdev_call(camera, pad, enum_mbus_code, NULL, &code);
821 	if (rval == -ENOIOCTLCMD) {
822 		dev_warn(isp->dev,
823 			 "enum_mbus_code pad op not supported by %s. Please fix your sensor driver!\n",
824 			 camera->name);
825 	}
826 
827 	if (rval)
828 		return rval;
829 
830 	for (i = 0; i < ARRAY_SIZE(atomisp_output_fmts); i++) {
831 		format = &atomisp_output_fmts[i];
832 
833 		/*
834 		 * Is the atomisp-supported format is valid for the
835 		 * sensor (configuration)? If not, skip it.
836 		 *
837 		 * FIXME: fix the pipeline to allow sensor format too.
838 		 */
839 		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW)
840 			continue;
841 
842 		/* Found a match. Now let's pick f->index'th one. */
843 		if (fi < f->index) {
844 			fi++;
845 			continue;
846 		}
847 
848 		strscpy(f->description, format->description,
849 			sizeof(f->description));
850 		f->pixelformat = format->pixelformat;
851 		return 0;
852 	}
853 
854 	return -EINVAL;
855 }
856 
857 static int atomisp_adjust_fmt(struct v4l2_format *f)
858 {
859 	const struct atomisp_format_bridge *format_bridge;
860 	u32 padded_width;
861 
862 	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
863 	/* Currently, raw formats are broken!!! */
864 	if (!format_bridge || format_bridge->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
865 		f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
866 
867 		format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
868 		if (!format_bridge)
869 			return -EINVAL;
870 	}
871 
872 	padded_width = f->fmt.pix.width + pad_w;
873 
874 	if (format_bridge->planar) {
875 		f->fmt.pix.bytesperline = padded_width;
876 		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height *
877 						  DIV_ROUND_UP(format_bridge->depth *
878 						  padded_width, 8));
879 	} else {
880 		f->fmt.pix.bytesperline = DIV_ROUND_UP(format_bridge->depth *
881 						      padded_width, 8);
882 		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height * f->fmt.pix.bytesperline);
883 	}
884 
885 	if (f->fmt.pix.field == V4L2_FIELD_ANY)
886 		f->fmt.pix.field = V4L2_FIELD_NONE;
887 
888 	/*
889 	 * FIXME: do we need to setup this differently, depending on the
890 	 * sensor or the pipeline?
891 	 */
892 	f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
893 	f->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_709;
894 	f->fmt.pix.xfer_func = V4L2_XFER_FUNC_709;
895 
896 	f->fmt.pix.width -= pad_w;
897 	f->fmt.pix.height -= pad_h;
898 
899 	return 0;
900 }
901 
902 /* This function looks up the closest available resolution. */
903 static int atomisp_try_fmt_cap(struct file *file, void *fh,
904 			       struct v4l2_format *f)
905 {
906 	struct video_device *vdev = video_devdata(file);
907 	u32 pixfmt = f->fmt.pix.pixelformat;
908 	int ret;
909 
910 	/*
911 	 * atomisp_try_fmt() gived results with padding included, note
912 	 * (this gets removed again by the atomisp_adjust_fmt() call below.
913 	 */
914 	f->fmt.pix.width += pad_w;
915 	f->fmt.pix.height += pad_h;
916 
917 	ret = atomisp_try_fmt(vdev, &f->fmt.pix, NULL);
918 	if (ret)
919 		return ret;
920 
921 	/*
922 	 * atomisp_try_fmt() replaces pixelformat with the sensors native
923 	 * format, restore the actual format requested by userspace.
924 	 */
925 	f->fmt.pix.pixelformat = pixfmt;
926 
927 	return atomisp_adjust_fmt(f);
928 }
929 
930 static int atomisp_g_fmt_cap(struct file *file, void *fh,
931 			     struct v4l2_format *f)
932 {
933 	struct video_device *vdev = video_devdata(file);
934 	struct atomisp_video_pipe *pipe;
935 
936 	pipe = atomisp_to_video_pipe(vdev);
937 
938 	f->fmt.pix = pipe->pix;
939 
940 	/* If s_fmt was issued, just return whatever is was previouly set */
941 	if (f->fmt.pix.sizeimage)
942 		return 0;
943 
944 	f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
945 	f->fmt.pix.width = 10000;
946 	f->fmt.pix.height = 10000;
947 
948 	return atomisp_try_fmt_cap(file, fh, f);
949 }
950 
951 int atomisp_alloc_css_stat_bufs(struct atomisp_sub_device *asd,
952 				uint16_t stream_id)
953 {
954 	struct atomisp_device *isp = asd->isp;
955 	struct atomisp_s3a_buf *s3a_buf = NULL, *_s3a_buf;
956 	struct atomisp_dis_buf *dis_buf = NULL, *_dis_buf;
957 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf;
958 	int count;
959 	struct ia_css_dvs_grid_info *dvs_grid_info =
960 	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
961 	unsigned int i;
962 
963 	if (list_empty(&asd->s3a_stats) &&
964 	    asd->params.curr_grid_info.s3a_grid.enable) {
965 		count = ATOMISP_CSS_Q_DEPTH +
966 			ATOMISP_S3A_BUF_QUEUE_DEPTH_FOR_HAL;
967 		dev_dbg(isp->dev, "allocating %d 3a buffers\n", count);
968 		while (count--) {
969 			s3a_buf = kzalloc(sizeof(struct atomisp_s3a_buf), GFP_KERNEL);
970 			if (!s3a_buf)
971 				goto error;
972 
973 			if (atomisp_css_allocate_stat_buffers(
974 				asd, stream_id, s3a_buf, NULL, NULL)) {
975 				kfree(s3a_buf);
976 				goto error;
977 			}
978 
979 			list_add_tail(&s3a_buf->list, &asd->s3a_stats);
980 		}
981 	}
982 
983 	if (list_empty(&asd->dis_stats) && dvs_grid_info &&
984 	    dvs_grid_info->enable) {
985 		count = ATOMISP_CSS_Q_DEPTH + 1;
986 		dev_dbg(isp->dev, "allocating %d dis buffers\n", count);
987 		while (count--) {
988 			dis_buf = kzalloc(sizeof(struct atomisp_dis_buf), GFP_KERNEL);
989 			if (!dis_buf)
990 				goto error;
991 			if (atomisp_css_allocate_stat_buffers(
992 				asd, stream_id, NULL, dis_buf, NULL)) {
993 				kfree(dis_buf);
994 				goto error;
995 			}
996 
997 			list_add_tail(&dis_buf->list, &asd->dis_stats);
998 		}
999 	}
1000 
1001 	for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
1002 		if (list_empty(&asd->metadata[i]) &&
1003 		    list_empty(&asd->metadata_ready[i]) &&
1004 		    list_empty(&asd->metadata_in_css[i])) {
1005 			count = ATOMISP_CSS_Q_DEPTH +
1006 				ATOMISP_METADATA_QUEUE_DEPTH_FOR_HAL;
1007 			dev_dbg(isp->dev, "allocating %d metadata buffers for type %d\n",
1008 				count, i);
1009 			while (count--) {
1010 				md_buf = kzalloc(sizeof(struct atomisp_metadata_buf),
1011 						 GFP_KERNEL);
1012 				if (!md_buf)
1013 					goto error;
1014 
1015 				if (atomisp_css_allocate_stat_buffers(
1016 					asd, stream_id, NULL, NULL, md_buf)) {
1017 					kfree(md_buf);
1018 					goto error;
1019 				}
1020 				list_add_tail(&md_buf->list, &asd->metadata[i]);
1021 			}
1022 		}
1023 	}
1024 	return 0;
1025 
1026 error:
1027 	dev_err(isp->dev, "failed to allocate statistics buffers\n");
1028 
1029 	list_for_each_entry_safe(dis_buf, _dis_buf, &asd->dis_stats, list) {
1030 		atomisp_css_free_dis_buffer(dis_buf);
1031 		list_del(&dis_buf->list);
1032 		kfree(dis_buf);
1033 	}
1034 
1035 	list_for_each_entry_safe(s3a_buf, _s3a_buf, &asd->s3a_stats, list) {
1036 		atomisp_css_free_3a_buffer(s3a_buf);
1037 		list_del(&s3a_buf->list);
1038 		kfree(s3a_buf);
1039 	}
1040 
1041 	for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
1042 		list_for_each_entry_safe(md_buf, _md_buf, &asd->metadata[i],
1043 					 list) {
1044 			atomisp_css_free_metadata_buffer(md_buf);
1045 			list_del(&md_buf->list);
1046 			kfree(md_buf);
1047 		}
1048 	}
1049 	return -ENOMEM;
1050 }
1051 
1052 /*
1053  * FIXME the abuse of buf->reserved2 in the qbuf and dqbuf wrappers comes from
1054  * the original atomisp buffer handling and should be replaced with proper V4L2
1055  * per frame parameters use.
1056  *
1057  * Once this is fixed these wrappers can be removed, replacing them with direct
1058  * calls to vb2_ioctl_[d]qbuf().
1059  */
1060 static int atomisp_qbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer *buf)
1061 {
1062 	struct video_device *vdev = video_devdata(file);
1063 	struct atomisp_device *isp = video_get_drvdata(vdev);
1064 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
1065 
1066 	if (buf->index >= vdev->queue->num_buffers)
1067 		return -EINVAL;
1068 
1069 	if (!atomisp_is_vf_pipe(pipe) &&
1070 	    (buf->reserved2 & ATOMISP_BUFFER_HAS_PER_FRAME_SETTING)) {
1071 		/* this buffer will have a per-frame parameter */
1072 		pipe->frame_request_config_id[buf->index] = buf->reserved2 &
1073 			~ATOMISP_BUFFER_HAS_PER_FRAME_SETTING;
1074 		dev_dbg(isp->dev,
1075 			"This buffer requires per_frame setting which has isp_config_id %d\n",
1076 			pipe->frame_request_config_id[buf->index]);
1077 	} else {
1078 		pipe->frame_request_config_id[buf->index] = 0;
1079 	}
1080 
1081 	return vb2_ioctl_qbuf(file, fh, buf);
1082 }
1083 
1084 static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer *buf)
1085 {
1086 	struct video_device *vdev = video_devdata(file);
1087 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
1088 	struct atomisp_sub_device *asd = pipe->asd;
1089 	struct atomisp_device *isp = video_get_drvdata(vdev);
1090 	struct ia_css_frame *frame;
1091 	struct vb2_buffer *vb;
1092 	int ret;
1093 
1094 	ret = vb2_ioctl_dqbuf(file, fh, buf);
1095 	if (ret)
1096 		return ret;
1097 
1098 	vb = pipe->vb_queue.bufs[buf->index];
1099 	frame = vb_to_frame(vb);
1100 
1101 	buf->reserved = asd->frame_status[buf->index];
1102 
1103 	/*
1104 	 * Hack:
1105 	 * Currently frame_status in the enum type which takes no more lower
1106 	 * 8 bit.
1107 	 * use bit[31:16] for exp_id as it is only in the range of 1~255
1108 	 */
1109 	buf->reserved &= 0x0000ffff;
1110 	if (!(buf->flags & V4L2_BUF_FLAG_ERROR))
1111 		buf->reserved |= frame->exp_id;
1112 	buf->reserved2 = pipe->frame_config_id[buf->index];
1113 
1114 	dev_dbg(isp->dev,
1115 		"dqbuf buffer %d (%s) for asd%d with exp_id %d, isp_config_id %d\n",
1116 		buf->index, vdev->name, asd->index, buf->reserved >> 16,
1117 		buf->reserved2);
1118 	return 0;
1119 }
1120 
1121 enum ia_css_pipe_id atomisp_get_css_pipe_id(struct atomisp_sub_device *asd)
1122 {
1123 	/*
1124 	 * Disable vf_pp and run CSS in video mode. This allows using ISP
1125 	 * scaling but it has one frame delay due to CSS internal buffering.
1126 	 */
1127 	if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER)
1128 		return IA_CSS_PIPE_ID_VIDEO;
1129 
1130 	/*
1131 	 * Disable vf_pp and run CSS in still capture mode. In this mode
1132 	 * CSS does not cause extra latency with buffering, but scaling
1133 	 * is not available.
1134 	 */
1135 	if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT)
1136 		return IA_CSS_PIPE_ID_CAPTURE;
1137 
1138 	switch (asd->run_mode->val) {
1139 	case ATOMISP_RUN_MODE_PREVIEW:
1140 		return IA_CSS_PIPE_ID_PREVIEW;
1141 	case ATOMISP_RUN_MODE_VIDEO:
1142 		return IA_CSS_PIPE_ID_VIDEO;
1143 	case ATOMISP_RUN_MODE_STILL_CAPTURE:
1144 	default:
1145 		return IA_CSS_PIPE_ID_CAPTURE;
1146 	}
1147 }
1148 
1149 static unsigned int atomisp_sensor_start_stream(struct atomisp_sub_device *asd)
1150 {
1151 	if (asd->vfpp->val != ATOMISP_VFPP_ENABLE ||
1152 	    asd->copy_mode)
1153 		return 1;
1154 
1155 	if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO ||
1156 	    (asd->run_mode->val == ATOMISP_RUN_MODE_STILL_CAPTURE &&
1157 	     !atomisp_is_mbuscode_raw(asd->fmt[asd->capture_pad].fmt.code)))
1158 		return 2;
1159 	else
1160 		return 1;
1161 }
1162 
1163 /* Input system HW workaround */
1164 /* Input system address translation corrupts burst during */
1165 /* invalidate. SW workaround for this is to set burst length */
1166 /* manually to 128 in case of 13MPx snapshot and to 1 otherwise. */
1167 static void atomisp_dma_burst_len_cfg(struct atomisp_sub_device *asd)
1168 {
1169 	struct v4l2_mbus_framefmt *sink;
1170 
1171 	sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
1172 				       V4L2_SUBDEV_FORMAT_ACTIVE,
1173 				       ATOMISP_SUBDEV_PAD_SINK);
1174 
1175 	if (sink->width * sink->height >= 4096 * 3072)
1176 		atomisp_css2_hw_store_32(DMA_BURST_SIZE_REG, 0x7F);
1177 	else
1178 		atomisp_css2_hw_store_32(DMA_BURST_SIZE_REG, 0x00);
1179 }
1180 
1181 int atomisp_start_streaming(struct vb2_queue *vq, unsigned int count)
1182 {
1183 	struct atomisp_video_pipe *pipe = vq_to_pipe(vq);
1184 	struct atomisp_sub_device *asd = pipe->asd;
1185 	struct video_device *vdev = &pipe->vdev;
1186 	struct atomisp_device *isp = asd->isp;
1187 	struct pci_dev *pdev = to_pci_dev(isp->dev);
1188 	enum ia_css_pipe_id css_pipe_id;
1189 	unsigned int sensor_start_stream;
1190 	unsigned long irqflags;
1191 	int ret;
1192 
1193 	mutex_lock(&isp->mutex);
1194 
1195 	dev_dbg(isp->dev, "Start stream on pad %d for asd%d\n",
1196 		atomisp_subdev_source_pad(vdev), asd->index);
1197 
1198 	ret = atomisp_pipe_check(pipe, false);
1199 	if (ret)
1200 		goto out_unlock;
1201 
1202 	/* Input system HW workaround */
1203 	atomisp_dma_burst_len_cfg(asd);
1204 
1205 	/*
1206 	 * The number of streaming video nodes is based on which
1207 	 * binary is going to be run.
1208 	 */
1209 	sensor_start_stream = atomisp_sensor_start_stream(asd);
1210 
1211 	if (atomisp_subdev_streaming_count(asd) > sensor_start_stream) {
1212 		atomisp_qbuffers_to_css(asd);
1213 		ret = 0;
1214 		goto out_unlock;
1215 	}
1216 
1217 	if (asd->streaming == ATOMISP_DEVICE_STREAMING_ENABLED) {
1218 		atomisp_qbuffers_to_css(asd);
1219 		goto start_sensor;
1220 	}
1221 
1222 	css_pipe_id = atomisp_get_css_pipe_id(asd);
1223 
1224 	/* Invalidate caches. FIXME: should flush only necessary buffers */
1225 	wbinvd();
1226 
1227 	if (asd->params.css_update_params_needed) {
1228 		atomisp_apply_css_parameters(asd, &asd->params.css_param);
1229 		if (asd->params.css_param.update_flag.dz_config)
1230 			asd->params.config.dz_config = &asd->params.css_param.dz_config;
1231 		atomisp_css_update_isp_params(asd);
1232 		asd->params.css_update_params_needed = false;
1233 		memset(&asd->params.css_param.update_flag, 0,
1234 		       sizeof(struct atomisp_parameters));
1235 	}
1236 	asd->params.dvs_6axis = NULL;
1237 
1238 	ret = atomisp_css_start(asd, css_pipe_id, false);
1239 	if (ret) {
1240 		atomisp_flush_video_pipe(pipe, VB2_BUF_STATE_QUEUED, true);
1241 		goto out_unlock;
1242 	}
1243 
1244 	spin_lock_irqsave(&isp->lock, irqflags);
1245 	asd->streaming = ATOMISP_DEVICE_STREAMING_ENABLED;
1246 	spin_unlock_irqrestore(&isp->lock, irqflags);
1247 	atomic_set(&asd->sof_count, -1);
1248 	atomic_set(&asd->sequence, -1);
1249 	atomic_set(&asd->sequence_temp, -1);
1250 
1251 	asd->params.dis_proj_data_valid = false;
1252 	asd->latest_preview_exp_id = 0;
1253 	asd->postview_exp_id = 1;
1254 	asd->preview_exp_id = 1;
1255 
1256 	/* handle per_frame_setting parameter and buffers */
1257 	atomisp_handle_parameter_and_buffer(pipe);
1258 
1259 	atomisp_qbuffers_to_css(asd);
1260 
1261 	/* Only start sensor when the last streaming instance started */
1262 	if (atomisp_subdev_streaming_count(asd) < sensor_start_stream) {
1263 		ret = 0;
1264 		goto out_unlock;
1265 	}
1266 
1267 start_sensor:
1268 	if (isp->flash) {
1269 		asd->params.num_flash_frames = 0;
1270 		asd->params.flash_state = ATOMISP_FLASH_IDLE;
1271 		atomisp_setup_flash(asd);
1272 	}
1273 
1274 	atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF,
1275 			       atomisp_css_valid_sof(isp));
1276 	atomisp_csi2_configure(asd);
1277 	/*
1278 	 * set freq to max when streaming count > 1 which indicate
1279 	 * dual camera would run
1280 	 */
1281 	if (atomisp_streaming_count(isp) > 1) {
1282 		if (atomisp_freq_scaling(isp,
1283 					 ATOMISP_DFS_MODE_MAX, false) < 0)
1284 			dev_dbg(isp->dev, "DFS max mode failed!\n");
1285 	} else {
1286 		if (atomisp_freq_scaling(isp,
1287 					 ATOMISP_DFS_MODE_AUTO, false) < 0)
1288 			dev_dbg(isp->dev, "DFS auto mode failed!\n");
1289 	}
1290 
1291 	/* Enable the CSI interface on ANN B0/K0 */
1292 	if (isp->media_dev.hw_revision >= ((ATOMISP_HW_REVISION_ISP2401 <<
1293 					    ATOMISP_HW_REVISION_SHIFT) | ATOMISP_HW_STEPPING_B0)) {
1294 		pci_write_config_word(pdev, MRFLD_PCI_CSI_CONTROL,
1295 				      isp->saved_regs.csi_control | MRFLD_PCI_CSI_CONTROL_CSI_READY);
1296 	}
1297 
1298 	/* stream on the sensor */
1299 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
1300 			       video, s_stream, 1);
1301 	if (ret) {
1302 		spin_lock_irqsave(&isp->lock, irqflags);
1303 		asd->streaming = ATOMISP_DEVICE_STREAMING_DISABLED;
1304 		spin_unlock_irqrestore(&isp->lock, irqflags);
1305 		ret = -EINVAL;
1306 		goto out_unlock;
1307 	}
1308 
1309 out_unlock:
1310 	mutex_unlock(&isp->mutex);
1311 	return ret;
1312 }
1313 
1314 void atomisp_stop_streaming(struct vb2_queue *vq)
1315 {
1316 	struct atomisp_video_pipe *pipe = vq_to_pipe(vq);
1317 	struct atomisp_sub_device *asd = pipe->asd;
1318 	struct video_device *vdev = &pipe->vdev;
1319 	struct atomisp_device *isp = asd->isp;
1320 	struct pci_dev *pdev = to_pci_dev(isp->dev);
1321 	bool recreate_streams[MAX_STREAM_NUM] = {0};
1322 	enum ia_css_pipe_id css_pipe_id;
1323 	bool first_streamoff = false;
1324 	unsigned long flags;
1325 	int i, ret;
1326 
1327 	mutex_lock(&isp->mutex);
1328 
1329 	dev_dbg(isp->dev, "Stop stream on pad %d for asd%d\n",
1330 		atomisp_subdev_source_pad(vdev), asd->index);
1331 
1332 	/*
1333 	 * There is no guarantee that the buffers queued to / owned by the ISP
1334 	 * will properly be returned to the queue when stopping. Set a flag to
1335 	 * avoid new buffers getting queued and then wait for all the current
1336 	 * buffers to finish.
1337 	 */
1338 	pipe->stopping = true;
1339 	mutex_unlock(&isp->mutex);
1340 	/* wait max 1 second */
1341 	ret = wait_event_timeout(pipe->vb_queue.done_wq,
1342 				 atomisp_buffers_in_css(pipe) == 0, HZ);
1343 	mutex_lock(&isp->mutex);
1344 	pipe->stopping = false;
1345 	if (ret == 0)
1346 		dev_warn(isp->dev, "Warning timeout waiting for CSS to return buffers\n");
1347 
1348 	if (asd->streaming == ATOMISP_DEVICE_STREAMING_ENABLED)
1349 		first_streamoff = true;
1350 
1351 	spin_lock_irqsave(&isp->lock, flags);
1352 	if (atomisp_subdev_streaming_count(asd) == 1)
1353 		asd->streaming = ATOMISP_DEVICE_STREAMING_DISABLED;
1354 	else
1355 		asd->streaming = ATOMISP_DEVICE_STREAMING_STOPPING;
1356 	spin_unlock_irqrestore(&isp->lock, flags);
1357 
1358 	if (!first_streamoff)
1359 		goto stopsensor;
1360 
1361 	atomisp_clear_css_buffer_counters(asd);
1362 	atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF, false);
1363 
1364 	css_pipe_id = atomisp_get_css_pipe_id(asd);
1365 	atomisp_css_stop(asd, css_pipe_id, false);
1366 
1367 	atomisp_flush_video_pipe(pipe, VB2_BUF_STATE_ERROR, true);
1368 
1369 	atomisp_subdev_cleanup_pending_events(asd);
1370 stopsensor:
1371 	if (atomisp_subdev_streaming_count(asd) != atomisp_sensor_start_stream(asd))
1372 		goto out_unlock;
1373 
1374 	ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
1375 			       video, s_stream, 0);
1376 
1377 	if (isp->flash) {
1378 		asd->params.num_flash_frames = 0;
1379 		asd->params.flash_state = ATOMISP_FLASH_IDLE;
1380 	}
1381 
1382 	/* if other streams are running, isp should not be powered off */
1383 	if (atomisp_streaming_count(isp)) {
1384 		atomisp_css_flush(isp);
1385 		goto out_unlock;
1386 	}
1387 
1388 	/* Disable the CSI interface on ANN B0/K0 */
1389 	if (isp->media_dev.hw_revision >= ((ATOMISP_HW_REVISION_ISP2401 <<
1390 					    ATOMISP_HW_REVISION_SHIFT) | ATOMISP_HW_STEPPING_B0)) {
1391 		pci_write_config_word(pdev, MRFLD_PCI_CSI_CONTROL,
1392 				      isp->saved_regs.csi_control & ~MRFLD_PCI_CSI_CONTROL_CSI_READY);
1393 	}
1394 
1395 	if (atomisp_freq_scaling(isp, ATOMISP_DFS_MODE_LOW, false))
1396 		dev_warn(isp->dev, "DFS failed.\n");
1397 	/*
1398 	 * ISP work around, need to reset isp
1399 	 * Is it correct time to reset ISP when first node does streamoff?
1400 	 */
1401 	if (isp->isp_timeout)
1402 		dev_err(isp->dev, "%s: Resetting with WA activated",
1403 			__func__);
1404 	/*
1405 	 * It is possible that the other asd stream is in the stage
1406 	 * that v4l2_setfmt is just get called on it, which will
1407 	 * create css stream on that stream. But at this point, there
1408 	 * is no way to destroy the css stream created on that stream.
1409 	 *
1410 	 * So force stream destroy here.
1411 	 */
1412 	for (i = 0; i < isp->num_of_streams; i++) {
1413 		if (isp->asd[i].stream_prepared) {
1414 			atomisp_destroy_pipes_stream_force(&isp->asd[i]);
1415 			recreate_streams[i] = true;
1416 		}
1417 	}
1418 
1419 	/* disable  PUNIT/ISP acknowlede/handshake - SRSE=3 */
1420 	pci_write_config_dword(pdev, PCI_I_CONTROL,
1421 			       isp->saved_regs.i_control | MRFLD_PCI_I_CONTROL_SRSE_RESET_MASK);
1422 	dev_err(isp->dev, "atomisp_reset");
1423 	atomisp_reset(isp);
1424 	for (i = 0; i < isp->num_of_streams; i++) {
1425 		if (recreate_streams[i]) {
1426 			int ret2;
1427 
1428 			ret2 = atomisp_create_pipes_stream(&isp->asd[i]);
1429 			if (ret2) {
1430 				dev_err(isp->dev, "%s error re-creating streams: %d\n",
1431 					__func__, ret2);
1432 				if (!ret)
1433 					ret = ret2;
1434 			}
1435 		}
1436 	}
1437 	isp->isp_timeout = false;
1438 out_unlock:
1439 	mutex_unlock(&isp->mutex);
1440 }
1441 
1442 /*
1443  * To get the current value of a control.
1444  * applications initialize the id field of a struct v4l2_control and
1445  * call this ioctl with a pointer to this structure
1446  */
1447 static int atomisp_g_ctrl(struct file *file, void *fh,
1448 			  struct v4l2_control *control)
1449 {
1450 	struct video_device *vdev = video_devdata(file);
1451 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1452 	struct atomisp_device *isp = video_get_drvdata(vdev);
1453 	int i, ret = -EINVAL;
1454 
1455 	for (i = 0; i < ctrls_num; i++) {
1456 		if (ci_v4l2_controls[i].id == control->id) {
1457 			ret = 0;
1458 			break;
1459 		}
1460 	}
1461 
1462 	if (ret)
1463 		return ret;
1464 
1465 	switch (control->id) {
1466 	case V4L2_CID_IRIS_ABSOLUTE:
1467 	case V4L2_CID_EXPOSURE_ABSOLUTE:
1468 	case V4L2_CID_2A_STATUS:
1469 	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
1470 	case V4L2_CID_EXPOSURE:
1471 	case V4L2_CID_EXPOSURE_AUTO:
1472 	case V4L2_CID_SCENE_MODE:
1473 	case V4L2_CID_ISO_SENSITIVITY:
1474 	case V4L2_CID_ISO_SENSITIVITY_AUTO:
1475 	case V4L2_CID_CONTRAST:
1476 	case V4L2_CID_SATURATION:
1477 	case V4L2_CID_SHARPNESS:
1478 	case V4L2_CID_3A_LOCK:
1479 	case V4L2_CID_EXPOSURE_ZONE_NUM:
1480 	case V4L2_CID_TEST_PATTERN:
1481 	case V4L2_CID_TEST_PATTERN_COLOR_R:
1482 	case V4L2_CID_TEST_PATTERN_COLOR_GR:
1483 	case V4L2_CID_TEST_PATTERN_COLOR_GB:
1484 	case V4L2_CID_TEST_PATTERN_COLOR_B:
1485 		return v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->
1486 				   ctrl_handler, control);
1487 	case V4L2_CID_COLORFX:
1488 		ret = atomisp_color_effect(asd, 0, &control->value);
1489 		break;
1490 	case V4L2_CID_ATOMISP_BAD_PIXEL_DETECTION:
1491 		ret = atomisp_bad_pixel(asd, 0, &control->value);
1492 		break;
1493 	case V4L2_CID_ATOMISP_POSTPROCESS_GDC_CAC:
1494 		ret = atomisp_gdc_cac(asd, 0, &control->value);
1495 		break;
1496 	case V4L2_CID_ATOMISP_VIDEO_STABLIZATION:
1497 		ret = atomisp_video_stable(asd, 0, &control->value);
1498 		break;
1499 	case V4L2_CID_ATOMISP_FIXED_PATTERN_NR:
1500 		ret = atomisp_fixed_pattern(asd, 0, &control->value);
1501 		break;
1502 	case V4L2_CID_ATOMISP_FALSE_COLOR_CORRECTION:
1503 		ret = atomisp_false_color(asd, 0, &control->value);
1504 		break;
1505 	case V4L2_CID_ATOMISP_LOW_LIGHT:
1506 		ret = atomisp_low_light(asd, 0, &control->value);
1507 		break;
1508 	default:
1509 		ret = -EINVAL;
1510 		break;
1511 	}
1512 
1513 	return ret;
1514 }
1515 
1516 /*
1517  * To change the value of a control.
1518  * applications initialize the id and value fields of a struct v4l2_control
1519  * and call this ioctl.
1520  */
1521 static int atomisp_s_ctrl(struct file *file, void *fh,
1522 			  struct v4l2_control *control)
1523 {
1524 	struct video_device *vdev = video_devdata(file);
1525 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1526 	struct atomisp_device *isp = video_get_drvdata(vdev);
1527 	int i, ret = -EINVAL;
1528 
1529 	for (i = 0; i < ctrls_num; i++) {
1530 		if (ci_v4l2_controls[i].id == control->id) {
1531 			ret = 0;
1532 			break;
1533 		}
1534 	}
1535 
1536 	if (ret)
1537 		return ret;
1538 
1539 	switch (control->id) {
1540 	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
1541 	case V4L2_CID_EXPOSURE:
1542 	case V4L2_CID_EXPOSURE_AUTO:
1543 	case V4L2_CID_EXPOSURE_AUTO_PRIORITY:
1544 	case V4L2_CID_SCENE_MODE:
1545 	case V4L2_CID_ISO_SENSITIVITY:
1546 	case V4L2_CID_ISO_SENSITIVITY_AUTO:
1547 	case V4L2_CID_POWER_LINE_FREQUENCY:
1548 	case V4L2_CID_EXPOSURE_METERING:
1549 	case V4L2_CID_CONTRAST:
1550 	case V4L2_CID_SATURATION:
1551 	case V4L2_CID_SHARPNESS:
1552 	case V4L2_CID_3A_LOCK:
1553 	case V4L2_CID_COLORFX_CBCR:
1554 	case V4L2_CID_TEST_PATTERN:
1555 	case V4L2_CID_TEST_PATTERN_COLOR_R:
1556 	case V4L2_CID_TEST_PATTERN_COLOR_GR:
1557 	case V4L2_CID_TEST_PATTERN_COLOR_GB:
1558 	case V4L2_CID_TEST_PATTERN_COLOR_B:
1559 		return v4l2_s_ctrl(NULL,
1560 				   isp->inputs[asd->input_curr].camera->
1561 				   ctrl_handler, control);
1562 	case V4L2_CID_COLORFX:
1563 		ret = atomisp_color_effect(asd, 1, &control->value);
1564 		break;
1565 	case V4L2_CID_ATOMISP_BAD_PIXEL_DETECTION:
1566 		ret = atomisp_bad_pixel(asd, 1, &control->value);
1567 		break;
1568 	case V4L2_CID_ATOMISP_POSTPROCESS_GDC_CAC:
1569 		ret = atomisp_gdc_cac(asd, 1, &control->value);
1570 		break;
1571 	case V4L2_CID_ATOMISP_VIDEO_STABLIZATION:
1572 		ret = atomisp_video_stable(asd, 1, &control->value);
1573 		break;
1574 	case V4L2_CID_ATOMISP_FIXED_PATTERN_NR:
1575 		ret = atomisp_fixed_pattern(asd, 1, &control->value);
1576 		break;
1577 	case V4L2_CID_ATOMISP_FALSE_COLOR_CORRECTION:
1578 		ret = atomisp_false_color(asd, 1, &control->value);
1579 		break;
1580 	case V4L2_CID_REQUEST_FLASH:
1581 		ret = atomisp_flash_enable(asd, control->value);
1582 		break;
1583 	case V4L2_CID_ATOMISP_LOW_LIGHT:
1584 		ret = atomisp_low_light(asd, 1, &control->value);
1585 		break;
1586 	default:
1587 		ret = -EINVAL;
1588 		break;
1589 	}
1590 	return ret;
1591 }
1592 
1593 /*
1594  * To query the attributes of a control.
1595  * applications set the id field of a struct v4l2_queryctrl and call the
1596  * this ioctl with a pointer to this structure. The driver fills
1597  * the rest of the structure.
1598  */
1599 static int atomisp_queryctl(struct file *file, void *fh,
1600 			    struct v4l2_queryctrl *qc)
1601 {
1602 	int i, ret = -EINVAL;
1603 	struct video_device *vdev = video_devdata(file);
1604 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1605 	struct atomisp_device *isp = video_get_drvdata(vdev);
1606 
1607 	switch (qc->id) {
1608 	case V4L2_CID_FOCUS_ABSOLUTE:
1609 	case V4L2_CID_FOCUS_RELATIVE:
1610 	case V4L2_CID_FOCUS_STATUS:
1611 		if (!IS_ISP2401) {
1612 			return v4l2_queryctrl(isp->inputs[asd->input_curr].camera->
1613 					    ctrl_handler, qc);
1614 		}
1615 		/* ISP2401 */
1616 		if (isp->motor)
1617 			return v4l2_queryctrl(isp->motor->ctrl_handler, qc);
1618 		else
1619 			return v4l2_queryctrl(isp->inputs[asd->input_curr].
1620 					      camera->ctrl_handler, qc);
1621 	}
1622 
1623 	if (qc->id & V4L2_CTRL_FLAG_NEXT_CTRL)
1624 		return ret;
1625 
1626 	for (i = 0; i < ctrls_num; i++) {
1627 		if (ci_v4l2_controls[i].id == qc->id) {
1628 			memcpy(qc, &ci_v4l2_controls[i],
1629 			       sizeof(struct v4l2_queryctrl));
1630 			qc->reserved[0] = 0;
1631 			ret = 0;
1632 			break;
1633 		}
1634 	}
1635 	if (ret != 0)
1636 		qc->flags = V4L2_CTRL_FLAG_DISABLED;
1637 
1638 	return ret;
1639 }
1640 
1641 static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh,
1642 				      struct v4l2_ext_controls *c)
1643 {
1644 	struct video_device *vdev = video_devdata(file);
1645 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1646 	struct atomisp_device *isp = video_get_drvdata(vdev);
1647 	struct v4l2_subdev *motor;
1648 	struct v4l2_control ctrl;
1649 	int i;
1650 	int ret = 0;
1651 
1652 	if (!IS_ISP2401)
1653 		motor = isp->inputs[asd->input_curr].motor;
1654 	else
1655 		motor = isp->motor;
1656 
1657 	for (i = 0; i < c->count; i++) {
1658 		ctrl.id = c->controls[i].id;
1659 		ctrl.value = c->controls[i].value;
1660 		switch (ctrl.id) {
1661 		case V4L2_CID_EXPOSURE_ABSOLUTE:
1662 		case V4L2_CID_EXPOSURE_AUTO:
1663 		case V4L2_CID_IRIS_ABSOLUTE:
1664 		case V4L2_CID_3A_LOCK:
1665 		case V4L2_CID_TEST_PATTERN:
1666 		case V4L2_CID_TEST_PATTERN_COLOR_R:
1667 		case V4L2_CID_TEST_PATTERN_COLOR_GR:
1668 		case V4L2_CID_TEST_PATTERN_COLOR_GB:
1669 		case V4L2_CID_TEST_PATTERN_COLOR_B:
1670 			/*
1671 			 * Exposure related control will be handled by sensor
1672 			 * driver
1673 			 */
1674 			ret =
1675 			    v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->
1676 					ctrl_handler, &ctrl);
1677 			break;
1678 		case V4L2_CID_FOCUS_ABSOLUTE:
1679 		case V4L2_CID_FOCUS_RELATIVE:
1680 		case V4L2_CID_FOCUS_STATUS:
1681 		case V4L2_CID_FOCUS_AUTO:
1682 			if (motor)
1683 				ret = v4l2_g_ctrl(motor->ctrl_handler, &ctrl);
1684 			break;
1685 		case V4L2_CID_FLASH_STATUS:
1686 		case V4L2_CID_FLASH_INTENSITY:
1687 		case V4L2_CID_FLASH_TORCH_INTENSITY:
1688 		case V4L2_CID_FLASH_INDICATOR_INTENSITY:
1689 		case V4L2_CID_FLASH_TIMEOUT:
1690 		case V4L2_CID_FLASH_STROBE:
1691 		case V4L2_CID_FLASH_MODE:
1692 		case V4L2_CID_FLASH_STATUS_REGISTER:
1693 			if (isp->flash)
1694 				ret =
1695 				    v4l2_g_ctrl(isp->flash->ctrl_handler,
1696 						&ctrl);
1697 			break;
1698 		case V4L2_CID_ZOOM_ABSOLUTE:
1699 			ret = atomisp_digital_zoom(asd, 0, &ctrl.value);
1700 			break;
1701 		case V4L2_CID_G_SKIP_FRAMES:
1702 			ret = v4l2_subdev_call(
1703 				  isp->inputs[asd->input_curr].camera,
1704 				  sensor, g_skip_frames, (u32 *)&ctrl.value);
1705 			break;
1706 		default:
1707 			ret = -EINVAL;
1708 		}
1709 
1710 		if (ret) {
1711 			c->error_idx = i;
1712 			break;
1713 		}
1714 		c->controls[i].value = ctrl.value;
1715 	}
1716 	return ret;
1717 }
1718 
1719 /* This ioctl allows the application to get multiple controls by class */
1720 static int atomisp_g_ext_ctrls(struct file *file, void *fh,
1721 			       struct v4l2_ext_controls *c)
1722 {
1723 	struct v4l2_control ctrl;
1724 	int i, ret = 0;
1725 
1726 	/*
1727 	 * input_lock is not need for the Camera related IOCTLs
1728 	 * The input_lock downgrade the FPS of 3A
1729 	 */
1730 	ret = atomisp_camera_g_ext_ctrls(file, fh, c);
1731 	if (ret != -EINVAL)
1732 		return ret;
1733 
1734 	for (i = 0; i < c->count; i++) {
1735 		ctrl.id = c->controls[i].id;
1736 		ctrl.value = c->controls[i].value;
1737 		ret = atomisp_g_ctrl(file, fh, &ctrl);
1738 		c->controls[i].value = ctrl.value;
1739 		if (ret) {
1740 			c->error_idx = i;
1741 			break;
1742 		}
1743 	}
1744 	return ret;
1745 }
1746 
1747 static int atomisp_camera_s_ext_ctrls(struct file *file, void *fh,
1748 				      struct v4l2_ext_controls *c)
1749 {
1750 	struct video_device *vdev = video_devdata(file);
1751 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1752 	struct atomisp_device *isp = video_get_drvdata(vdev);
1753 	struct v4l2_subdev *motor;
1754 	struct v4l2_control ctrl;
1755 	int i;
1756 	int ret = 0;
1757 
1758 	if (!IS_ISP2401)
1759 		motor = isp->inputs[asd->input_curr].motor;
1760 	else
1761 		motor = isp->motor;
1762 
1763 	for (i = 0; i < c->count; i++) {
1764 		struct v4l2_ctrl *ctr;
1765 
1766 		ctrl.id = c->controls[i].id;
1767 		ctrl.value = c->controls[i].value;
1768 		switch (ctrl.id) {
1769 		case V4L2_CID_EXPOSURE_ABSOLUTE:
1770 		case V4L2_CID_EXPOSURE_AUTO:
1771 		case V4L2_CID_EXPOSURE_METERING:
1772 		case V4L2_CID_IRIS_ABSOLUTE:
1773 		case V4L2_CID_VCM_TIMING:
1774 		case V4L2_CID_VCM_SLEW:
1775 		case V4L2_CID_3A_LOCK:
1776 		case V4L2_CID_TEST_PATTERN:
1777 		case V4L2_CID_TEST_PATTERN_COLOR_R:
1778 		case V4L2_CID_TEST_PATTERN_COLOR_GR:
1779 		case V4L2_CID_TEST_PATTERN_COLOR_GB:
1780 		case V4L2_CID_TEST_PATTERN_COLOR_B:
1781 			ret = v4l2_s_ctrl(NULL,
1782 					  isp->inputs[asd->input_curr].camera->
1783 					  ctrl_handler, &ctrl);
1784 			break;
1785 		case V4L2_CID_FOCUS_ABSOLUTE:
1786 		case V4L2_CID_FOCUS_RELATIVE:
1787 		case V4L2_CID_FOCUS_STATUS:
1788 		case V4L2_CID_FOCUS_AUTO:
1789 			if (motor)
1790 				ret = v4l2_s_ctrl(NULL, motor->ctrl_handler,
1791 						  &ctrl);
1792 			else
1793 				ret = v4l2_s_ctrl(NULL,
1794 						  isp->inputs[asd->input_curr].
1795 						  camera->ctrl_handler, &ctrl);
1796 			break;
1797 		case V4L2_CID_FLASH_STATUS:
1798 		case V4L2_CID_FLASH_INTENSITY:
1799 		case V4L2_CID_FLASH_TORCH_INTENSITY:
1800 		case V4L2_CID_FLASH_INDICATOR_INTENSITY:
1801 		case V4L2_CID_FLASH_TIMEOUT:
1802 		case V4L2_CID_FLASH_STROBE:
1803 		case V4L2_CID_FLASH_MODE:
1804 		case V4L2_CID_FLASH_STATUS_REGISTER:
1805 			if (isp->flash) {
1806 				ret =
1807 				    v4l2_s_ctrl(NULL, isp->flash->ctrl_handler,
1808 						&ctrl);
1809 				/*
1810 				 * When flash mode is changed we need to reset
1811 				 * flash state
1812 				 */
1813 				if (ctrl.id == V4L2_CID_FLASH_MODE) {
1814 					asd->params.flash_state =
1815 					    ATOMISP_FLASH_IDLE;
1816 					asd->params.num_flash_frames = 0;
1817 				}
1818 			}
1819 			break;
1820 		case V4L2_CID_ZOOM_ABSOLUTE:
1821 			ret = atomisp_digital_zoom(asd, 1, &ctrl.value);
1822 			break;
1823 		default:
1824 			ctr = v4l2_ctrl_find(&asd->ctrl_handler, ctrl.id);
1825 			if (ctr)
1826 				ret = v4l2_ctrl_s_ctrl(ctr, ctrl.value);
1827 			else
1828 				ret = -EINVAL;
1829 		}
1830 
1831 		if (ret) {
1832 			c->error_idx = i;
1833 			break;
1834 		}
1835 		c->controls[i].value = ctrl.value;
1836 	}
1837 	return ret;
1838 }
1839 
1840 /* This ioctl allows the application to set multiple controls by class */
1841 static int atomisp_s_ext_ctrls(struct file *file, void *fh,
1842 			       struct v4l2_ext_controls *c)
1843 {
1844 	struct v4l2_control ctrl;
1845 	int i, ret = 0;
1846 
1847 	/*
1848 	 * input_lock is not need for the Camera related IOCTLs
1849 	 * The input_lock downgrade the FPS of 3A
1850 	 */
1851 	ret = atomisp_camera_s_ext_ctrls(file, fh, c);
1852 	if (ret != -EINVAL)
1853 		return ret;
1854 
1855 	for (i = 0; i < c->count; i++) {
1856 		ctrl.id = c->controls[i].id;
1857 		ctrl.value = c->controls[i].value;
1858 		ret = atomisp_s_ctrl(file, fh, &ctrl);
1859 		c->controls[i].value = ctrl.value;
1860 		if (ret) {
1861 			c->error_idx = i;
1862 			break;
1863 		}
1864 	}
1865 	return ret;
1866 }
1867 
1868 /*
1869  * vidioc_g/s_param are used to switch isp running mode
1870  */
1871 static int atomisp_g_parm(struct file *file, void *fh,
1872 			  struct v4l2_streamparm *parm)
1873 {
1874 	struct video_device *vdev = video_devdata(file);
1875 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1876 	struct atomisp_device *isp = video_get_drvdata(vdev);
1877 
1878 	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1879 		dev_err(isp->dev, "unsupported v4l2 buf type\n");
1880 		return -EINVAL;
1881 	}
1882 
1883 	parm->parm.capture.capturemode = asd->run_mode->val;
1884 
1885 	return 0;
1886 }
1887 
1888 static int atomisp_s_parm(struct file *file, void *fh,
1889 			  struct v4l2_streamparm *parm)
1890 {
1891 	struct video_device *vdev = video_devdata(file);
1892 	struct atomisp_device *isp = video_get_drvdata(vdev);
1893 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1894 	int mode;
1895 	int rval;
1896 	int fps;
1897 
1898 	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1899 		dev_err(isp->dev, "unsupported v4l2 buf type\n");
1900 		return -EINVAL;
1901 	}
1902 
1903 	asd->high_speed_mode = false;
1904 	switch (parm->parm.capture.capturemode) {
1905 	case CI_MODE_NONE: {
1906 		struct v4l2_subdev_frame_interval fi = {0};
1907 
1908 		fi.interval = parm->parm.capture.timeperframe;
1909 
1910 		rval = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
1911 					video, s_frame_interval, &fi);
1912 		if (!rval)
1913 			parm->parm.capture.timeperframe = fi.interval;
1914 
1915 		if (fi.interval.numerator != 0) {
1916 			fps = fi.interval.denominator / fi.interval.numerator;
1917 			if (fps > 30)
1918 				asd->high_speed_mode = true;
1919 		}
1920 
1921 		return rval == -ENOIOCTLCMD ? 0 : rval;
1922 	}
1923 	case CI_MODE_VIDEO:
1924 		mode = ATOMISP_RUN_MODE_VIDEO;
1925 		break;
1926 	case CI_MODE_STILL_CAPTURE:
1927 		mode = ATOMISP_RUN_MODE_STILL_CAPTURE;
1928 		break;
1929 	case CI_MODE_CONTINUOUS:
1930 		mode = ATOMISP_RUN_MODE_CONTINUOUS_CAPTURE;
1931 		break;
1932 	case CI_MODE_PREVIEW:
1933 		mode = ATOMISP_RUN_MODE_PREVIEW;
1934 		break;
1935 	default:
1936 		return -EINVAL;
1937 	}
1938 
1939 	rval = v4l2_ctrl_s_ctrl(asd->run_mode, mode);
1940 
1941 	return rval == -ENOIOCTLCMD ? 0 : rval;
1942 }
1943 
1944 static long atomisp_vidioc_default(struct file *file, void *fh,
1945 				   bool valid_prio, unsigned int cmd, void *arg)
1946 {
1947 	struct video_device *vdev = video_devdata(file);
1948 	struct atomisp_device *isp = video_get_drvdata(vdev);
1949 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
1950 	struct v4l2_subdev *motor;
1951 	int err;
1952 
1953 	if (!IS_ISP2401)
1954 		motor = isp->inputs[asd->input_curr].motor;
1955 	else
1956 		motor = isp->motor;
1957 
1958 	switch (cmd) {
1959 	case ATOMISP_IOC_S_SENSOR_RUNMODE:
1960 		if (IS_ISP2401)
1961 			err = atomisp_set_sensor_runmode(asd, arg);
1962 		else
1963 			err = -EINVAL;
1964 		break;
1965 
1966 	case ATOMISP_IOC_G_XNR:
1967 		err = atomisp_xnr(asd, 0, arg);
1968 		break;
1969 
1970 	case ATOMISP_IOC_S_XNR:
1971 		err = atomisp_xnr(asd, 1, arg);
1972 		break;
1973 
1974 	case ATOMISP_IOC_G_NR:
1975 		err = atomisp_nr(asd, 0, arg);
1976 		break;
1977 
1978 	case ATOMISP_IOC_S_NR:
1979 		err = atomisp_nr(asd, 1, arg);
1980 		break;
1981 
1982 	case ATOMISP_IOC_G_TNR:
1983 		err = atomisp_tnr(asd, 0, arg);
1984 		break;
1985 
1986 	case ATOMISP_IOC_S_TNR:
1987 		err = atomisp_tnr(asd, 1, arg);
1988 		break;
1989 
1990 	case ATOMISP_IOC_G_BLACK_LEVEL_COMP:
1991 		err = atomisp_black_level(asd, 0, arg);
1992 		break;
1993 
1994 	case ATOMISP_IOC_S_BLACK_LEVEL_COMP:
1995 		err = atomisp_black_level(asd, 1, arg);
1996 		break;
1997 
1998 	case ATOMISP_IOC_G_EE:
1999 		err = atomisp_ee(asd, 0, arg);
2000 		break;
2001 
2002 	case ATOMISP_IOC_S_EE:
2003 		err = atomisp_ee(asd, 1, arg);
2004 		break;
2005 
2006 	case ATOMISP_IOC_G_DIS_STAT:
2007 		err = atomisp_get_dis_stat(asd, arg);
2008 		break;
2009 
2010 	case ATOMISP_IOC_G_DVS2_BQ_RESOLUTIONS:
2011 		err = atomisp_get_dvs2_bq_resolutions(asd, arg);
2012 		break;
2013 
2014 	case ATOMISP_IOC_S_DIS_COEFS:
2015 		err = atomisp_css_cp_dvs2_coefs(asd, arg,
2016 						&asd->params.css_param, true);
2017 		if (!err && arg)
2018 			asd->params.css_update_params_needed = true;
2019 		break;
2020 
2021 	case ATOMISP_IOC_S_DIS_VECTOR:
2022 		err = atomisp_cp_dvs_6axis_config(asd, arg,
2023 						  &asd->params.css_param, true);
2024 		if (!err && arg)
2025 			asd->params.css_update_params_needed = true;
2026 		break;
2027 
2028 	case ATOMISP_IOC_G_ISP_PARM:
2029 		err = atomisp_param(asd, 0, arg);
2030 		break;
2031 
2032 	case ATOMISP_IOC_S_ISP_PARM:
2033 		err = atomisp_param(asd, 1, arg);
2034 		break;
2035 
2036 	case ATOMISP_IOC_G_3A_STAT:
2037 		err = atomisp_3a_stat(asd, 0, arg);
2038 		break;
2039 
2040 	case ATOMISP_IOC_G_ISP_GAMMA:
2041 		err = atomisp_gamma(asd, 0, arg);
2042 		break;
2043 
2044 	case ATOMISP_IOC_S_ISP_GAMMA:
2045 		err = atomisp_gamma(asd, 1, arg);
2046 		break;
2047 
2048 	case ATOMISP_IOC_G_ISP_GDC_TAB:
2049 		err = atomisp_gdc_cac_table(asd, 0, arg);
2050 		break;
2051 
2052 	case ATOMISP_IOC_S_ISP_GDC_TAB:
2053 		err = atomisp_gdc_cac_table(asd, 1, arg);
2054 		break;
2055 
2056 	case ATOMISP_IOC_G_ISP_MACC:
2057 		err = atomisp_macc_table(asd, 0, arg);
2058 		break;
2059 
2060 	case ATOMISP_IOC_S_ISP_MACC:
2061 		err = atomisp_macc_table(asd, 1, arg);
2062 		break;
2063 
2064 	case ATOMISP_IOC_G_ISP_BAD_PIXEL_DETECTION:
2065 		err = atomisp_bad_pixel_param(asd, 0, arg);
2066 		break;
2067 
2068 	case ATOMISP_IOC_S_ISP_BAD_PIXEL_DETECTION:
2069 		err = atomisp_bad_pixel_param(asd, 1, arg);
2070 		break;
2071 
2072 	case ATOMISP_IOC_G_ISP_FALSE_COLOR_CORRECTION:
2073 		err = atomisp_false_color_param(asd, 0, arg);
2074 		break;
2075 
2076 	case ATOMISP_IOC_S_ISP_FALSE_COLOR_CORRECTION:
2077 		err = atomisp_false_color_param(asd, 1, arg);
2078 		break;
2079 
2080 	case ATOMISP_IOC_G_ISP_CTC:
2081 		err = atomisp_ctc(asd, 0, arg);
2082 		break;
2083 
2084 	case ATOMISP_IOC_S_ISP_CTC:
2085 		err = atomisp_ctc(asd, 1, arg);
2086 		break;
2087 
2088 	case ATOMISP_IOC_G_ISP_WHITE_BALANCE:
2089 		err = atomisp_white_balance_param(asd, 0, arg);
2090 		break;
2091 
2092 	case ATOMISP_IOC_S_ISP_WHITE_BALANCE:
2093 		err = atomisp_white_balance_param(asd, 1, arg);
2094 		break;
2095 
2096 	case ATOMISP_IOC_G_3A_CONFIG:
2097 		err = atomisp_3a_config_param(asd, 0, arg);
2098 		break;
2099 
2100 	case ATOMISP_IOC_S_3A_CONFIG:
2101 		err = atomisp_3a_config_param(asd, 1, arg);
2102 		break;
2103 
2104 	case ATOMISP_IOC_S_ISP_FPN_TABLE:
2105 		err = atomisp_fixed_pattern_table(asd, arg);
2106 		break;
2107 
2108 	case ATOMISP_IOC_G_MOTOR_PRIV_INT_DATA:
2109 		if (motor)
2110 			err = v4l2_subdev_call(motor, core, ioctl, cmd, arg);
2111 		else
2112 			err = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
2113 					       core, ioctl, cmd, arg);
2114 		break;
2115 
2116 	case ATOMISP_IOC_S_EXPOSURE:
2117 	case ATOMISP_IOC_G_SENSOR_CALIBRATION_GROUP:
2118 	case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA:
2119 	case ATOMISP_IOC_G_SENSOR_AE_BRACKETING_INFO:
2120 	case ATOMISP_IOC_S_SENSOR_AE_BRACKETING_MODE:
2121 	case ATOMISP_IOC_G_SENSOR_AE_BRACKETING_MODE:
2122 	case ATOMISP_IOC_S_SENSOR_AE_BRACKETING_LUT:
2123 		err = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
2124 				       core, ioctl, cmd, arg);
2125 		break;
2126 	case ATOMISP_IOC_G_UPDATE_EXPOSURE:
2127 		if (IS_ISP2401)
2128 			err = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
2129 					       core, ioctl, cmd, arg);
2130 		else
2131 			err = -EINVAL;
2132 		break;
2133 
2134 	case ATOMISP_IOC_S_ISP_SHD_TAB:
2135 		err = atomisp_set_shading_table(asd, arg);
2136 		break;
2137 
2138 	case ATOMISP_IOC_G_ISP_GAMMA_CORRECTION:
2139 		err = atomisp_gamma_correction(asd, 0, arg);
2140 		break;
2141 
2142 	case ATOMISP_IOC_S_ISP_GAMMA_CORRECTION:
2143 		err = atomisp_gamma_correction(asd, 1, arg);
2144 		break;
2145 
2146 	case ATOMISP_IOC_S_PARAMETERS:
2147 		err = atomisp_set_parameters(vdev, arg);
2148 		break;
2149 
2150 	case ATOMISP_IOC_G_METADATA:
2151 		err = atomisp_get_metadata(asd, 0, arg);
2152 		break;
2153 	case ATOMISP_IOC_G_METADATA_BY_TYPE:
2154 		err = atomisp_get_metadata_by_type(asd, 0, arg);
2155 		break;
2156 	case ATOMISP_IOC_EXT_ISP_CTRL:
2157 		err = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
2158 				       core, ioctl, cmd, arg);
2159 		break;
2160 	case ATOMISP_IOC_EXP_ID_UNLOCK:
2161 		err = atomisp_exp_id_unlock(asd, arg);
2162 		break;
2163 	case ATOMISP_IOC_EXP_ID_CAPTURE:
2164 		err = atomisp_exp_id_capture(asd, arg);
2165 		break;
2166 	case ATOMISP_IOC_S_ENABLE_DZ_CAPT_PIPE:
2167 		err = atomisp_enable_dz_capt_pipe(asd, arg);
2168 		break;
2169 	case ATOMISP_IOC_G_FORMATS_CONFIG:
2170 		err = atomisp_formats(asd, 0, arg);
2171 		break;
2172 
2173 	case ATOMISP_IOC_S_FORMATS_CONFIG:
2174 		err = atomisp_formats(asd, 1, arg);
2175 		break;
2176 	case ATOMISP_IOC_S_EXPOSURE_WINDOW:
2177 		err = atomisp_s_ae_window(asd, arg);
2178 		break;
2179 	case ATOMISP_IOC_INJECT_A_FAKE_EVENT:
2180 		err = atomisp_inject_a_fake_event(asd, arg);
2181 		break;
2182 	case ATOMISP_IOC_G_INVALID_FRAME_NUM:
2183 		err = atomisp_get_invalid_frame_num(vdev, arg);
2184 		break;
2185 	case ATOMISP_IOC_S_ARRAY_RESOLUTION:
2186 		err = atomisp_set_array_res(asd, arg);
2187 		break;
2188 	default:
2189 		err = -EINVAL;
2190 		break;
2191 	}
2192 
2193 	return err;
2194 }
2195 
2196 const struct v4l2_ioctl_ops atomisp_ioctl_ops = {
2197 	.vidioc_querycap = atomisp_querycap,
2198 	.vidioc_enum_input = atomisp_enum_input,
2199 	.vidioc_g_input = atomisp_g_input,
2200 	.vidioc_s_input = atomisp_s_input,
2201 	.vidioc_queryctrl = atomisp_queryctl,
2202 	.vidioc_s_ctrl = atomisp_s_ctrl,
2203 	.vidioc_g_ctrl = atomisp_g_ctrl,
2204 	.vidioc_s_ext_ctrls = atomisp_s_ext_ctrls,
2205 	.vidioc_g_ext_ctrls = atomisp_g_ext_ctrls,
2206 	.vidioc_enum_framesizes   = atomisp_enum_framesizes,
2207 	.vidioc_enum_frameintervals = atomisp_enum_frameintervals,
2208 	.vidioc_enum_fmt_vid_cap = atomisp_enum_fmt_cap,
2209 	.vidioc_try_fmt_vid_cap = atomisp_try_fmt_cap,
2210 	.vidioc_g_fmt_vid_cap = atomisp_g_fmt_cap,
2211 	.vidioc_s_fmt_vid_cap = atomisp_s_fmt_cap,
2212 	.vidioc_reqbufs = vb2_ioctl_reqbufs,
2213 	.vidioc_querybuf = vb2_ioctl_querybuf,
2214 	.vidioc_qbuf = atomisp_qbuf_wrapper,
2215 	.vidioc_dqbuf = atomisp_dqbuf_wrapper,
2216 	.vidioc_streamon = vb2_ioctl_streamon,
2217 	.vidioc_streamoff = vb2_ioctl_streamoff,
2218 	.vidioc_default = atomisp_vidioc_default,
2219 	.vidioc_s_parm = atomisp_s_parm,
2220 	.vidioc_g_parm = atomisp_g_parm,
2221 };
2222