1 /*
2  *  Driver for the Conexant CX23885 PCIe bridge
3  *
4  *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *
15  *  GNU General Public License for more details.
16  */
17 
18 #include "cx23885.h"
19 #include "cx23885-video.h"
20 
21 #include <linux/init.h>
22 #include <linux/list.h>
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/kmod.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/interrupt.h>
29 #include <linux/delay.h>
30 #include <linux/kthread.h>
31 #include <asm/div64.h>
32 
33 #include <media/v4l2-common.h>
34 #include <media/v4l2-ioctl.h>
35 #include <media/v4l2-event.h>
36 #include "cx23885-ioctl.h"
37 #include "tuner-xc2028.h"
38 
39 #include <media/drv-intf/cx25840.h>
40 
41 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
42 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
43 MODULE_LICENSE("GPL");
44 
45 /* ------------------------------------------------------------------ */
46 
47 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
48 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
49 
50 module_param_array(video_nr, int, NULL, 0444);
51 module_param_array(vbi_nr,   int, NULL, 0444);
52 
53 MODULE_PARM_DESC(video_nr, "video device numbers");
54 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
55 
56 static unsigned int video_debug;
57 module_param(video_debug, int, 0644);
58 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
59 
60 static unsigned int irq_debug;
61 module_param(irq_debug, int, 0644);
62 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
63 
64 static unsigned int vid_limit = 16;
65 module_param(vid_limit, int, 0644);
66 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
67 
68 #define dprintk(level, fmt, arg...)\
69 	do { if (video_debug >= level)\
70 		printk(KERN_DEBUG pr_fmt("%s: video:" fmt), \
71 			__func__, ##arg); \
72 	} while (0)
73 
74 /* ------------------------------------------------------------------- */
75 /* static data                                                         */
76 
77 #define FORMAT_FLAGS_PACKED       0x01
78 static struct cx23885_fmt formats[] = {
79 	{
80 		.name     = "4:2:2, packed, YUYV",
81 		.fourcc   = V4L2_PIX_FMT_YUYV,
82 		.depth    = 16,
83 		.flags    = FORMAT_FLAGS_PACKED,
84 	}
85 };
86 
87 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
88 {
89 	unsigned int i;
90 
91 	for (i = 0; i < ARRAY_SIZE(formats); i++)
92 		if (formats[i].fourcc == fourcc)
93 			return formats+i;
94 	return NULL;
95 }
96 
97 /* ------------------------------------------------------------------- */
98 
99 void cx23885_video_wakeup(struct cx23885_dev *dev,
100 	struct cx23885_dmaqueue *q, u32 count)
101 {
102 	struct cx23885_buffer *buf;
103 
104 	if (list_empty(&q->active))
105 		return;
106 	buf = list_entry(q->active.next,
107 			struct cx23885_buffer, queue);
108 
109 	buf->vb.sequence = q->count++;
110 	buf->vb.vb2_buf.timestamp = ktime_get_ns();
111 	dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf,
112 			buf->vb.vb2_buf.index, count, q->count);
113 	list_del(&buf->queue);
114 	vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
115 }
116 
117 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
118 {
119 	struct v4l2_subdev_format format = {
120 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
121 		.format.code = MEDIA_BUS_FMT_FIXED,
122 	};
123 
124 	dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
125 		__func__,
126 		(unsigned int)norm,
127 		v4l2_norm_to_name(norm));
128 
129 	if (dev->tvnorm == norm)
130 		return 0;
131 
132 	if (dev->tvnorm != norm) {
133 		if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
134 		    vb2_is_busy(&dev->vb2_mpegq))
135 			return -EBUSY;
136 	}
137 
138 	dev->tvnorm = norm;
139 	dev->width = 720;
140 	dev->height = norm_maxh(norm);
141 	dev->field = V4L2_FIELD_INTERLACED;
142 
143 	call_all(dev, video, s_std, norm);
144 
145 	format.format.width = dev->width;
146 	format.format.height = dev->height;
147 	format.format.field = dev->field;
148 	call_all(dev, pad, set_fmt, NULL, &format);
149 
150 	return 0;
151 }
152 
153 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
154 				    struct pci_dev *pci,
155 				    struct video_device *template,
156 				    char *type)
157 {
158 	struct video_device *vfd;
159 	dprintk(1, "%s()\n", __func__);
160 
161 	vfd = video_device_alloc();
162 	if (NULL == vfd)
163 		return NULL;
164 	*vfd = *template;
165 	vfd->v4l2_dev = &dev->v4l2_dev;
166 	vfd->release = video_device_release;
167 	vfd->lock = &dev->lock;
168 	snprintf(vfd->name, sizeof(vfd->name), "%s (%s)",
169 		 cx23885_boards[dev->board].name, type);
170 	video_set_drvdata(vfd, dev);
171 	return vfd;
172 }
173 
174 int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data)
175 {
176 	/* 8 bit registers, 8 bit values */
177 	u8 buf[] = { reg, data };
178 
179 	struct i2c_msg msg = { .addr = 0x98 >> 1,
180 		.flags = 0, .buf = buf, .len = 2 };
181 
182 	return i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg, 1);
183 }
184 
185 u8 cx23885_flatiron_read(struct cx23885_dev *dev, u8 reg)
186 {
187 	/* 8 bit registers, 8 bit values */
188 	int ret;
189 	u8 b0[] = { reg };
190 	u8 b1[] = { 0 };
191 
192 	struct i2c_msg msg[] = {
193 		{ .addr = 0x98 >> 1, .flags = 0, .buf = b0, .len = 1 },
194 		{ .addr = 0x98 >> 1, .flags = I2C_M_RD, .buf = b1, .len = 1 }
195 	};
196 
197 	ret = i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg[0], 2);
198 	if (ret != 2)
199 		pr_err("%s() error\n", __func__);
200 
201 	return b1[0];
202 }
203 
204 static void cx23885_flatiron_dump(struct cx23885_dev *dev)
205 {
206 	int i;
207 	dprintk(1, "Flatiron dump\n");
208 	for (i = 0; i < 0x24; i++) {
209 		dprintk(1, "FI[%02x] = %02x\n", i,
210 			cx23885_flatiron_read(dev, i));
211 	}
212 }
213 
214 static int cx23885_flatiron_mux(struct cx23885_dev *dev, int input)
215 {
216 	u8 val;
217 	dprintk(1, "%s(input = %d)\n", __func__, input);
218 
219 	if (input == 1)
220 		val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) & ~FLD_CH_SEL;
221 	else if (input == 2)
222 		val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) | FLD_CH_SEL;
223 	else
224 		return -EINVAL;
225 
226 	val |= 0x20; /* Enable clock to delta-sigma and dec filter */
227 
228 	cx23885_flatiron_write(dev, CH_PWR_CTRL1, val);
229 
230 	/* Wake up */
231 	cx23885_flatiron_write(dev, CH_PWR_CTRL2, 0);
232 
233 	if (video_debug)
234 		cx23885_flatiron_dump(dev);
235 
236 	return 0;
237 }
238 
239 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
240 {
241 	dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
242 		__func__,
243 		input, INPUT(input)->vmux,
244 		INPUT(input)->gpio0, INPUT(input)->gpio1,
245 		INPUT(input)->gpio2, INPUT(input)->gpio3);
246 	dev->input = input;
247 
248 	if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
249 		dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2 ||
250 		dev->board == CX23885_BOARD_MYGICA_X8507) {
251 		/* Select Analog TV */
252 		if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
253 			cx23885_gpio_clear(dev, GPIO_0);
254 	}
255 
256 	/* Tell the internal A/V decoder */
257 	v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
258 			INPUT(input)->vmux, 0, 0);
259 
260 	if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) ||
261 		(dev->board == CX23885_BOARD_MPX885) ||
262 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) ||
263 		(dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE) ||
264 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
265 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
266 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4) ||
267 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
268 		(dev->board == CX23885_BOARD_MYGICA_X8507) ||
269 		(dev->board == CX23885_BOARD_AVERMEDIA_HC81R) ||
270 		(dev->board == CX23885_BOARD_VIEWCAST_260E) ||
271 		(dev->board == CX23885_BOARD_VIEWCAST_460E)) {
272 		/* Configure audio routing */
273 		v4l2_subdev_call(dev->sd_cx25840, audio, s_routing,
274 			INPUT(input)->amux, 0, 0);
275 
276 		if (INPUT(input)->amux == CX25840_AUDIO7)
277 			cx23885_flatiron_mux(dev, 1);
278 		else if (INPUT(input)->amux == CX25840_AUDIO6)
279 			cx23885_flatiron_mux(dev, 2);
280 	}
281 
282 	return 0;
283 }
284 
285 static int cx23885_audio_mux(struct cx23885_dev *dev, unsigned int input)
286 {
287 	dprintk(1, "%s(input=%d)\n", __func__, input);
288 
289 	/* The baseband video core of the cx23885 has two audio inputs.
290 	 * LR1 and LR2. In almost every single case so far only HVR1xxx
291 	 * cards we've only ever supported LR1. Time to support LR2,
292 	 * which is available via the optional white breakout header on
293 	 * the board.
294 	 * We'll use a could of existing enums in the card struct to allow
295 	 * devs to specify which baseband input they need, or just default
296 	 * to what we've always used.
297 	 */
298 	if (INPUT(input)->amux == CX25840_AUDIO7)
299 		cx23885_flatiron_mux(dev, 1);
300 	else if (INPUT(input)->amux == CX25840_AUDIO6)
301 		cx23885_flatiron_mux(dev, 2);
302 	else {
303 		/* Not specifically defined, assume the default. */
304 		cx23885_flatiron_mux(dev, 1);
305 	}
306 
307 	return 0;
308 }
309 
310 /* ------------------------------------------------------------------ */
311 static int cx23885_start_video_dma(struct cx23885_dev *dev,
312 			   struct cx23885_dmaqueue *q,
313 			   struct cx23885_buffer *buf)
314 {
315 	dprintk(1, "%s()\n", __func__);
316 
317 	/* Stop the dma/fifo before we tamper with it's risc programs */
318 	cx_clear(VID_A_DMA_CTL, 0x11);
319 
320 	/* setup fifo + format */
321 	cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
322 				buf->bpl, buf->risc.dma);
323 
324 	/* reset counter */
325 	cx_write(VID_A_GPCNT_CTL, 3);
326 	q->count = 0;
327 
328 	/* enable irq */
329 	cx23885_irq_add_enable(dev, 0x01);
330 	cx_set(VID_A_INT_MSK, 0x000011);
331 
332 	/* start dma */
333 	cx_set(DEV_CNTRL2, (1<<5));
334 	cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
335 
336 	return 0;
337 }
338 
339 static int queue_setup(struct vb2_queue *q,
340 			   unsigned int *num_buffers, unsigned int *num_planes,
341 			   unsigned int sizes[], struct device *alloc_devs[])
342 {
343 	struct cx23885_dev *dev = q->drv_priv;
344 
345 	*num_planes = 1;
346 	sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
347 	return 0;
348 }
349 
350 static int buffer_prepare(struct vb2_buffer *vb)
351 {
352 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
353 	struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
354 	struct cx23885_buffer *buf =
355 		container_of(vbuf, struct cx23885_buffer, vb);
356 	u32 line0_offset, line1_offset;
357 	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
358 	int field_tff;
359 
360 	buf->bpl = (dev->width * dev->fmt->depth) >> 3;
361 
362 	if (vb2_plane_size(vb, 0) < dev->height * buf->bpl)
363 		return -EINVAL;
364 	vb2_set_plane_payload(vb, 0, dev->height * buf->bpl);
365 
366 	switch (dev->field) {
367 	case V4L2_FIELD_TOP:
368 		cx23885_risc_buffer(dev->pci, &buf->risc,
369 				sgt->sgl, 0, UNSET,
370 				buf->bpl, 0, dev->height);
371 		break;
372 	case V4L2_FIELD_BOTTOM:
373 		cx23885_risc_buffer(dev->pci, &buf->risc,
374 				sgt->sgl, UNSET, 0,
375 				buf->bpl, 0, dev->height);
376 		break;
377 	case V4L2_FIELD_INTERLACED:
378 		if (dev->tvnorm & V4L2_STD_525_60)
379 			/* NTSC or  */
380 			field_tff = 1;
381 		else
382 			field_tff = 0;
383 
384 		if (cx23885_boards[dev->board].force_bff)
385 			/* PAL / SECAM OR 888 in NTSC MODE */
386 			field_tff = 0;
387 
388 		if (field_tff) {
389 			/* cx25840 transmits NTSC bottom field first */
390 			dprintk(1, "%s() Creating TFF/NTSC risc\n",
391 					__func__);
392 			line0_offset = buf->bpl;
393 			line1_offset = 0;
394 		} else {
395 			/* All other formats are top field first */
396 			dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
397 					__func__);
398 			line0_offset = 0;
399 			line1_offset = buf->bpl;
400 		}
401 		cx23885_risc_buffer(dev->pci, &buf->risc,
402 				sgt->sgl, line0_offset,
403 				line1_offset,
404 				buf->bpl, buf->bpl,
405 				dev->height >> 1);
406 		break;
407 	case V4L2_FIELD_SEQ_TB:
408 		cx23885_risc_buffer(dev->pci, &buf->risc,
409 				sgt->sgl,
410 				0, buf->bpl * (dev->height >> 1),
411 				buf->bpl, 0,
412 				dev->height >> 1);
413 		break;
414 	case V4L2_FIELD_SEQ_BT:
415 		cx23885_risc_buffer(dev->pci, &buf->risc,
416 				sgt->sgl,
417 				buf->bpl * (dev->height >> 1), 0,
418 				buf->bpl, 0,
419 				dev->height >> 1);
420 		break;
421 	default:
422 		BUG();
423 	}
424 	dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
425 		buf, buf->vb.vb2_buf.index,
426 		dev->width, dev->height, dev->fmt->depth, dev->fmt->name,
427 		(unsigned long)buf->risc.dma);
428 	return 0;
429 }
430 
431 static void buffer_finish(struct vb2_buffer *vb)
432 {
433 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
434 	struct cx23885_buffer *buf = container_of(vbuf,
435 		struct cx23885_buffer, vb);
436 
437 	cx23885_free_buffer(vb->vb2_queue->drv_priv, buf);
438 }
439 
440 /*
441  * The risc program for each buffer works as follows: it starts with a simple
442  * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
443  * buffer follows and at the end we have a JUMP back to the start + 12 (skipping
444  * the initial JUMP).
445  *
446  * This is the risc program of the first buffer to be queued if the active list
447  * is empty and it just keeps DMAing this buffer without generating any
448  * interrupts.
449  *
450  * If a new buffer is added then the initial JUMP in the code for that buffer
451  * will generate an interrupt which signals that the previous buffer has been
452  * DMAed successfully and that it can be returned to userspace.
453  *
454  * It also sets the final jump of the previous buffer to the start of the new
455  * buffer, thus chaining the new buffer into the DMA chain. This is a single
456  * atomic u32 write, so there is no race condition.
457  *
458  * The end-result of all this that you only get an interrupt when a buffer
459  * is ready, so the control flow is very easy.
460  */
461 static void buffer_queue(struct vb2_buffer *vb)
462 {
463 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
464 	struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
465 	struct cx23885_buffer   *buf = container_of(vbuf,
466 		struct cx23885_buffer, vb);
467 	struct cx23885_buffer   *prev;
468 	struct cx23885_dmaqueue *q    = &dev->vidq;
469 	unsigned long flags;
470 
471 	/* add jump to start */
472 	buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
473 	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
474 	buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
475 	buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
476 
477 	spin_lock_irqsave(&dev->slock, flags);
478 	if (list_empty(&q->active)) {
479 		list_add_tail(&buf->queue, &q->active);
480 		dprintk(2, "[%p/%d] buffer_queue - first active\n",
481 			buf, buf->vb.vb2_buf.index);
482 	} else {
483 		buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
484 		prev = list_entry(q->active.prev, struct cx23885_buffer,
485 			queue);
486 		list_add_tail(&buf->queue, &q->active);
487 		prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
488 		dprintk(2, "[%p/%d] buffer_queue - append to active\n",
489 				buf, buf->vb.vb2_buf.index);
490 	}
491 	spin_unlock_irqrestore(&dev->slock, flags);
492 }
493 
494 static int cx23885_start_streaming(struct vb2_queue *q, unsigned int count)
495 {
496 	struct cx23885_dev *dev = q->drv_priv;
497 	struct cx23885_dmaqueue *dmaq = &dev->vidq;
498 	struct cx23885_buffer *buf = list_entry(dmaq->active.next,
499 			struct cx23885_buffer, queue);
500 
501 	cx23885_start_video_dma(dev, dmaq, buf);
502 	return 0;
503 }
504 
505 static void cx23885_stop_streaming(struct vb2_queue *q)
506 {
507 	struct cx23885_dev *dev = q->drv_priv;
508 	struct cx23885_dmaqueue *dmaq = &dev->vidq;
509 	unsigned long flags;
510 
511 	cx_clear(VID_A_DMA_CTL, 0x11);
512 	spin_lock_irqsave(&dev->slock, flags);
513 	while (!list_empty(&dmaq->active)) {
514 		struct cx23885_buffer *buf = list_entry(dmaq->active.next,
515 			struct cx23885_buffer, queue);
516 
517 		list_del(&buf->queue);
518 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
519 	}
520 	spin_unlock_irqrestore(&dev->slock, flags);
521 }
522 
523 static const struct vb2_ops cx23885_video_qops = {
524 	.queue_setup    = queue_setup,
525 	.buf_prepare  = buffer_prepare,
526 	.buf_finish = buffer_finish,
527 	.buf_queue    = buffer_queue,
528 	.wait_prepare = vb2_ops_wait_prepare,
529 	.wait_finish = vb2_ops_wait_finish,
530 	.start_streaming = cx23885_start_streaming,
531 	.stop_streaming = cx23885_stop_streaming,
532 };
533 
534 /* ------------------------------------------------------------------ */
535 /* VIDEO IOCTLS                                                       */
536 
537 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
538 	struct v4l2_format *f)
539 {
540 	struct cx23885_dev *dev = video_drvdata(file);
541 
542 	f->fmt.pix.width        = dev->width;
543 	f->fmt.pix.height       = dev->height;
544 	f->fmt.pix.field        = dev->field;
545 	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
546 	f->fmt.pix.bytesperline =
547 		(f->fmt.pix.width * dev->fmt->depth) >> 3;
548 	f->fmt.pix.sizeimage =
549 		f->fmt.pix.height * f->fmt.pix.bytesperline;
550 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
551 
552 	return 0;
553 }
554 
555 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
556 	struct v4l2_format *f)
557 {
558 	struct cx23885_dev *dev = video_drvdata(file);
559 	struct cx23885_fmt *fmt;
560 	enum v4l2_field   field;
561 	unsigned int      maxw, maxh;
562 
563 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
564 	if (NULL == fmt)
565 		return -EINVAL;
566 
567 	field = f->fmt.pix.field;
568 	maxw  = 720;
569 	maxh  = norm_maxh(dev->tvnorm);
570 
571 	if (V4L2_FIELD_ANY == field) {
572 		field = (f->fmt.pix.height > maxh/2)
573 			? V4L2_FIELD_INTERLACED
574 			: V4L2_FIELD_BOTTOM;
575 	}
576 
577 	switch (field) {
578 	case V4L2_FIELD_TOP:
579 	case V4L2_FIELD_BOTTOM:
580 		maxh = maxh / 2;
581 		break;
582 	case V4L2_FIELD_INTERLACED:
583 	case V4L2_FIELD_SEQ_TB:
584 	case V4L2_FIELD_SEQ_BT:
585 		break;
586 	default:
587 		field = V4L2_FIELD_INTERLACED;
588 		break;
589 	}
590 
591 	f->fmt.pix.field = field;
592 	v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
593 			      &f->fmt.pix.height, 32, maxh, 0, 0);
594 	f->fmt.pix.bytesperline =
595 		(f->fmt.pix.width * fmt->depth) >> 3;
596 	f->fmt.pix.sizeimage =
597 		f->fmt.pix.height * f->fmt.pix.bytesperline;
598 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
599 
600 	return 0;
601 }
602 
603 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
604 	struct v4l2_format *f)
605 {
606 	struct cx23885_dev *dev = video_drvdata(file);
607 	struct v4l2_subdev_format format = {
608 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
609 	};
610 	int err;
611 
612 	dprintk(2, "%s()\n", __func__);
613 	err = vidioc_try_fmt_vid_cap(file, priv, f);
614 
615 	if (0 != err)
616 		return err;
617 
618 	if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
619 	    vb2_is_busy(&dev->vb2_mpegq))
620 		return -EBUSY;
621 
622 	dev->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
623 	dev->width      = f->fmt.pix.width;
624 	dev->height     = f->fmt.pix.height;
625 	dev->field	= f->fmt.pix.field;
626 	dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
627 		dev->width, dev->height, dev->field);
628 	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
629 	call_all(dev, pad, set_fmt, NULL, &format);
630 	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
631 	/* set_fmt overwrites f->fmt.pix.field, restore it */
632 	f->fmt.pix.field = dev->field;
633 	return 0;
634 }
635 
636 static int vidioc_querycap(struct file *file, void  *priv,
637 	struct v4l2_capability *cap)
638 {
639 	struct cx23885_dev *dev = video_drvdata(file);
640 	struct video_device *vdev = video_devdata(file);
641 
642 	strscpy(cap->driver, "cx23885", sizeof(cap->driver));
643 	strscpy(cap->card, cx23885_boards[dev->board].name,
644 		sizeof(cap->card));
645 	sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
646 	cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_AUDIO;
647 	if (dev->tuner_type != TUNER_ABSENT)
648 		cap->device_caps |= V4L2_CAP_TUNER;
649 	if (vdev->vfl_type == VFL_TYPE_VBI)
650 		cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
651 	else
652 		cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
653 	cap->capabilities = cap->device_caps | V4L2_CAP_VBI_CAPTURE |
654 		V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_DEVICE_CAPS;
655 	return 0;
656 }
657 
658 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
659 	struct v4l2_fmtdesc *f)
660 {
661 	if (unlikely(f->index >= ARRAY_SIZE(formats)))
662 		return -EINVAL;
663 
664 	strscpy(f->description, formats[f->index].name,
665 		sizeof(f->description));
666 	f->pixelformat = formats[f->index].fourcc;
667 
668 	return 0;
669 }
670 
671 static int vidioc_g_pixelaspect(struct file *file, void *priv,
672 				int type, struct v4l2_fract *f)
673 {
674 	struct cx23885_dev *dev = video_drvdata(file);
675 	bool is_50hz = dev->tvnorm & V4L2_STD_625_50;
676 
677 	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
678 		return -EINVAL;
679 
680 	f->numerator = is_50hz ? 54 : 11;
681 	f->denominator = is_50hz ? 59 : 10;
682 
683 	return 0;
684 }
685 
686 static int vidioc_g_selection(struct file *file, void *fh,
687 			      struct v4l2_selection *sel)
688 {
689 	struct cx23885_dev *dev = video_drvdata(file);
690 
691 	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
692 		return -EINVAL;
693 
694 	switch (sel->target) {
695 	case V4L2_SEL_TGT_CROP_BOUNDS:
696 	case V4L2_SEL_TGT_CROP_DEFAULT:
697 		sel->r.top = 0;
698 		sel->r.left = 0;
699 		sel->r.width = 720;
700 		sel->r.height = norm_maxh(dev->tvnorm);
701 		break;
702 	default:
703 		return -EINVAL;
704 	}
705 	return 0;
706 }
707 
708 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
709 {
710 	struct cx23885_dev *dev = video_drvdata(file);
711 	dprintk(1, "%s()\n", __func__);
712 
713 	*id = dev->tvnorm;
714 	return 0;
715 }
716 
717 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms)
718 {
719 	struct cx23885_dev *dev = video_drvdata(file);
720 	dprintk(1, "%s()\n", __func__);
721 
722 	return cx23885_set_tvnorm(dev, tvnorms);
723 }
724 
725 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
726 {
727 	static const char *iname[] = {
728 		[CX23885_VMUX_COMPOSITE1] = "Composite1",
729 		[CX23885_VMUX_COMPOSITE2] = "Composite2",
730 		[CX23885_VMUX_COMPOSITE3] = "Composite3",
731 		[CX23885_VMUX_COMPOSITE4] = "Composite4",
732 		[CX23885_VMUX_SVIDEO]     = "S-Video",
733 		[CX23885_VMUX_COMPONENT]  = "Component",
734 		[CX23885_VMUX_TELEVISION] = "Television",
735 		[CX23885_VMUX_CABLE]      = "Cable TV",
736 		[CX23885_VMUX_DVB]        = "DVB",
737 		[CX23885_VMUX_DEBUG]      = "for debug only",
738 	};
739 	unsigned int n;
740 	dprintk(1, "%s()\n", __func__);
741 
742 	n = i->index;
743 	if (n >= MAX_CX23885_INPUT)
744 		return -EINVAL;
745 
746 	if (0 == INPUT(n)->type)
747 		return -EINVAL;
748 
749 	i->index = n;
750 	i->type  = V4L2_INPUT_TYPE_CAMERA;
751 	strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
752 	i->std = CX23885_NORMS;
753 	if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
754 		(CX23885_VMUX_CABLE == INPUT(n)->type)) {
755 		i->type = V4L2_INPUT_TYPE_TUNER;
756 		i->audioset = 4;
757 	} else {
758 		/* Two selectable audio inputs for non-tv inputs */
759 		i->audioset = 3;
760 	}
761 
762 	if (dev->input == n) {
763 		/* enum'd input matches our configured input.
764 		 * Ask the video decoder to process the call
765 		 * and give it an oppertunity to update the
766 		 * status field.
767 		 */
768 		call_all(dev, video, g_input_status, &i->status);
769 	}
770 
771 	return 0;
772 }
773 
774 static int vidioc_enum_input(struct file *file, void *priv,
775 				struct v4l2_input *i)
776 {
777 	struct cx23885_dev *dev = video_drvdata(file);
778 	dprintk(1, "%s()\n", __func__);
779 	return cx23885_enum_input(dev, i);
780 }
781 
782 int cx23885_get_input(struct file *file, void *priv, unsigned int *i)
783 {
784 	struct cx23885_dev *dev = video_drvdata(file);
785 
786 	*i = dev->input;
787 	dprintk(1, "%s() returns %d\n", __func__, *i);
788 	return 0;
789 }
790 
791 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
792 {
793 	return cx23885_get_input(file, priv, i);
794 }
795 
796 int cx23885_set_input(struct file *file, void *priv, unsigned int i)
797 {
798 	struct cx23885_dev *dev = video_drvdata(file);
799 
800 	dprintk(1, "%s(%d)\n", __func__, i);
801 
802 	if (i >= MAX_CX23885_INPUT) {
803 		dprintk(1, "%s() -EINVAL\n", __func__);
804 		return -EINVAL;
805 	}
806 
807 	if (INPUT(i)->type == 0)
808 		return -EINVAL;
809 
810 	cx23885_video_mux(dev, i);
811 
812 	/* By default establish the default audio input for the card also */
813 	/* Caller is free to use VIDIOC_S_AUDIO to override afterwards */
814 	cx23885_audio_mux(dev, i);
815 	return 0;
816 }
817 
818 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
819 {
820 	return cx23885_set_input(file, priv, i);
821 }
822 
823 static int vidioc_log_status(struct file *file, void *priv)
824 {
825 	struct cx23885_dev *dev = video_drvdata(file);
826 
827 	call_all(dev, core, log_status);
828 	return 0;
829 }
830 
831 static int cx23885_query_audinput(struct file *file, void *priv,
832 	struct v4l2_audio *i)
833 {
834 	static const char *iname[] = {
835 		[0] = "Baseband L/R 1",
836 		[1] = "Baseband L/R 2",
837 		[2] = "TV",
838 	};
839 	unsigned int n;
840 	dprintk(1, "%s()\n", __func__);
841 
842 	n = i->index;
843 	if (n >= 3)
844 		return -EINVAL;
845 
846 	memset(i, 0, sizeof(*i));
847 	i->index = n;
848 	strscpy(i->name, iname[n], sizeof(i->name));
849 	i->capability = V4L2_AUDCAP_STEREO;
850 	return 0;
851 
852 }
853 
854 static int vidioc_enum_audinput(struct file *file, void *priv,
855 				struct v4l2_audio *i)
856 {
857 	return cx23885_query_audinput(file, priv, i);
858 }
859 
860 static int vidioc_g_audinput(struct file *file, void *priv,
861 	struct v4l2_audio *i)
862 {
863 	struct cx23885_dev *dev = video_drvdata(file);
864 
865 	if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
866 		(CX23885_VMUX_CABLE == INPUT(dev->input)->type))
867 		i->index = 2;
868 	else
869 		i->index = dev->audinput;
870 	dprintk(1, "%s(input=%d)\n", __func__, i->index);
871 
872 	return cx23885_query_audinput(file, priv, i);
873 }
874 
875 static int vidioc_s_audinput(struct file *file, void *priv,
876 	const struct v4l2_audio *i)
877 {
878 	struct cx23885_dev *dev = video_drvdata(file);
879 
880 	if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
881 		(CX23885_VMUX_CABLE == INPUT(dev->input)->type)) {
882 		return i->index != 2 ? -EINVAL : 0;
883 	}
884 	if (i->index > 1)
885 		return -EINVAL;
886 
887 	dprintk(1, "%s(%d)\n", __func__, i->index);
888 
889 	dev->audinput = i->index;
890 
891 	/* Skip the audio defaults from the cards struct, caller wants
892 	 * directly touch the audio mux hardware. */
893 	cx23885_flatiron_mux(dev, dev->audinput + 1);
894 	return 0;
895 }
896 
897 static int vidioc_g_tuner(struct file *file, void *priv,
898 				struct v4l2_tuner *t)
899 {
900 	struct cx23885_dev *dev = video_drvdata(file);
901 
902 	if (dev->tuner_type == TUNER_ABSENT)
903 		return -EINVAL;
904 	if (0 != t->index)
905 		return -EINVAL;
906 
907 	strscpy(t->name, "Television", sizeof(t->name));
908 
909 	call_all(dev, tuner, g_tuner, t);
910 	return 0;
911 }
912 
913 static int vidioc_s_tuner(struct file *file, void *priv,
914 				const struct v4l2_tuner *t)
915 {
916 	struct cx23885_dev *dev = video_drvdata(file);
917 
918 	if (dev->tuner_type == TUNER_ABSENT)
919 		return -EINVAL;
920 	if (0 != t->index)
921 		return -EINVAL;
922 	/* Update the A/V core */
923 	call_all(dev, tuner, s_tuner, t);
924 
925 	return 0;
926 }
927 
928 static int vidioc_g_frequency(struct file *file, void *priv,
929 				struct v4l2_frequency *f)
930 {
931 	struct cx23885_dev *dev = video_drvdata(file);
932 
933 	if (dev->tuner_type == TUNER_ABSENT)
934 		return -EINVAL;
935 
936 	f->type = V4L2_TUNER_ANALOG_TV;
937 	f->frequency = dev->freq;
938 
939 	call_all(dev, tuner, g_frequency, f);
940 
941 	return 0;
942 }
943 
944 static int cx23885_set_freq(struct cx23885_dev *dev, const struct v4l2_frequency *f)
945 {
946 	struct v4l2_ctrl *mute;
947 	int old_mute_val = 1;
948 
949 	if (dev->tuner_type == TUNER_ABSENT)
950 		return -EINVAL;
951 	if (unlikely(f->tuner != 0))
952 		return -EINVAL;
953 
954 	dev->freq = f->frequency;
955 
956 	/* I need to mute audio here */
957 	mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
958 	if (mute) {
959 		old_mute_val = v4l2_ctrl_g_ctrl(mute);
960 		if (!old_mute_val)
961 			v4l2_ctrl_s_ctrl(mute, 1);
962 	}
963 
964 	call_all(dev, tuner, s_frequency, f);
965 
966 	/* When changing channels it is required to reset TVAUDIO */
967 	msleep(100);
968 
969 	/* I need to unmute audio here */
970 	if (old_mute_val == 0)
971 		v4l2_ctrl_s_ctrl(mute, old_mute_val);
972 
973 	return 0;
974 }
975 
976 static int cx23885_set_freq_via_ops(struct cx23885_dev *dev,
977 	const struct v4l2_frequency *f)
978 {
979 	struct v4l2_ctrl *mute;
980 	int old_mute_val = 1;
981 	struct vb2_dvb_frontend *vfe;
982 	struct dvb_frontend *fe;
983 
984 	struct analog_parameters params = {
985 		.mode      = V4L2_TUNER_ANALOG_TV,
986 		.audmode   = V4L2_TUNER_MODE_STEREO,
987 		.std       = dev->tvnorm,
988 		.frequency = f->frequency
989 	};
990 
991 	dev->freq = f->frequency;
992 
993 	/* I need to mute audio here */
994 	mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
995 	if (mute) {
996 		old_mute_val = v4l2_ctrl_g_ctrl(mute);
997 		if (!old_mute_val)
998 			v4l2_ctrl_s_ctrl(mute, 1);
999 	}
1000 
1001 	/* If HVR1850 */
1002 	dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__,
1003 		params.frequency, f->tuner, params.std);
1004 
1005 	vfe = vb2_dvb_get_frontend(&dev->ts2.frontends, 1);
1006 	if (!vfe) {
1007 		return -EINVAL;
1008 	}
1009 
1010 	fe = vfe->dvb.frontend;
1011 
1012 	if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
1013 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
1014 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
1015 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4))
1016 		fe = &dev->ts1.analog_fe;
1017 
1018 	if (fe && fe->ops.tuner_ops.set_analog_params) {
1019 		call_all(dev, video, s_std, dev->tvnorm);
1020 		fe->ops.tuner_ops.set_analog_params(fe, &params);
1021 	}
1022 	else
1023 		pr_err("%s() No analog tuner, aborting\n", __func__);
1024 
1025 	/* When changing channels it is required to reset TVAUDIO */
1026 	msleep(100);
1027 
1028 	/* I need to unmute audio here */
1029 	if (old_mute_val == 0)
1030 		v4l2_ctrl_s_ctrl(mute, old_mute_val);
1031 
1032 	return 0;
1033 }
1034 
1035 int cx23885_set_frequency(struct file *file, void *priv,
1036 	const struct v4l2_frequency *f)
1037 {
1038 	struct cx23885_dev *dev = video_drvdata(file);
1039 	int ret;
1040 
1041 	switch (dev->board) {
1042 	case CX23885_BOARD_HAUPPAUGE_HVR1255:
1043 	case CX23885_BOARD_HAUPPAUGE_HVR1255_22111:
1044 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
1045 	case CX23885_BOARD_HAUPPAUGE_HVR1850:
1046 		ret = cx23885_set_freq_via_ops(dev, f);
1047 		break;
1048 	default:
1049 		ret = cx23885_set_freq(dev, f);
1050 	}
1051 
1052 	return ret;
1053 }
1054 
1055 static int vidioc_s_frequency(struct file *file, void *priv,
1056 	const struct v4l2_frequency *f)
1057 {
1058 	return cx23885_set_frequency(file, priv, f);
1059 }
1060 
1061 /* ----------------------------------------------------------- */
1062 
1063 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1064 {
1065 	u32 mask, count;
1066 	int handled = 0;
1067 
1068 	mask   = cx_read(VID_A_INT_MSK);
1069 	if (0 == (status & mask))
1070 		return handled;
1071 
1072 	cx_write(VID_A_INT_STAT, status);
1073 
1074 	/* risc op code error, fifo overflow or line sync detection error */
1075 	if ((status & VID_BC_MSK_OPC_ERR) ||
1076 		(status & VID_BC_MSK_SYNC) ||
1077 		(status & VID_BC_MSK_OF)) {
1078 
1079 		if (status & VID_BC_MSK_OPC_ERR) {
1080 			dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
1081 				VID_BC_MSK_OPC_ERR);
1082 			pr_warn("%s: video risc op code error\n",
1083 				dev->name);
1084 			cx23885_sram_channel_dump(dev,
1085 				&dev->sram_channels[SRAM_CH01]);
1086 		}
1087 
1088 		if (status & VID_BC_MSK_SYNC)
1089 			dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) video lines miss-match\n",
1090 				VID_BC_MSK_SYNC);
1091 
1092 		if (status & VID_BC_MSK_OF)
1093 			dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n",
1094 				VID_BC_MSK_OF);
1095 
1096 	}
1097 
1098 	/* Video */
1099 	if (status & VID_BC_MSK_RISCI1) {
1100 		spin_lock(&dev->slock);
1101 		count = cx_read(VID_A_GPCNT);
1102 		cx23885_video_wakeup(dev, &dev->vidq, count);
1103 		spin_unlock(&dev->slock);
1104 		handled++;
1105 	}
1106 
1107 	/* Allow the VBI framework to process it's payload */
1108 	handled += cx23885_vbi_irq(dev, status);
1109 
1110 	return handled;
1111 }
1112 
1113 /* ----------------------------------------------------------- */
1114 /* exported stuff                                              */
1115 
1116 static const struct v4l2_file_operations video_fops = {
1117 	.owner	       = THIS_MODULE,
1118 	.open           = v4l2_fh_open,
1119 	.release        = vb2_fop_release,
1120 	.read           = vb2_fop_read,
1121 	.poll		= vb2_fop_poll,
1122 	.unlocked_ioctl = video_ioctl2,
1123 	.mmap           = vb2_fop_mmap,
1124 };
1125 
1126 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1127 	.vidioc_querycap      = vidioc_querycap,
1128 	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1129 	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1130 	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1131 	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1132 	.vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1133 	.vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1134 	.vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1135 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
1136 	.vidioc_prepare_buf   = vb2_ioctl_prepare_buf,
1137 	.vidioc_querybuf      = vb2_ioctl_querybuf,
1138 	.vidioc_qbuf          = vb2_ioctl_qbuf,
1139 	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
1140 	.vidioc_streamon      = vb2_ioctl_streamon,
1141 	.vidioc_streamoff     = vb2_ioctl_streamoff,
1142 	.vidioc_g_pixelaspect = vidioc_g_pixelaspect,
1143 	.vidioc_g_selection   = vidioc_g_selection,
1144 	.vidioc_s_std         = vidioc_s_std,
1145 	.vidioc_g_std         = vidioc_g_std,
1146 	.vidioc_enum_input    = vidioc_enum_input,
1147 	.vidioc_g_input       = vidioc_g_input,
1148 	.vidioc_s_input       = vidioc_s_input,
1149 	.vidioc_log_status    = vidioc_log_status,
1150 	.vidioc_g_tuner       = vidioc_g_tuner,
1151 	.vidioc_s_tuner       = vidioc_s_tuner,
1152 	.vidioc_g_frequency   = vidioc_g_frequency,
1153 	.vidioc_s_frequency   = vidioc_s_frequency,
1154 #ifdef CONFIG_VIDEO_ADV_DEBUG
1155 	.vidioc_g_chip_info   = cx23885_g_chip_info,
1156 	.vidioc_g_register    = cx23885_g_register,
1157 	.vidioc_s_register    = cx23885_s_register,
1158 #endif
1159 	.vidioc_enumaudio     = vidioc_enum_audinput,
1160 	.vidioc_g_audio       = vidioc_g_audinput,
1161 	.vidioc_s_audio       = vidioc_s_audinput,
1162 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1163 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1164 };
1165 
1166 static struct video_device cx23885_vbi_template;
1167 static struct video_device cx23885_video_template = {
1168 	.name                 = "cx23885-video",
1169 	.fops                 = &video_fops,
1170 	.ioctl_ops	      = &video_ioctl_ops,
1171 	.tvnorms              = CX23885_NORMS,
1172 };
1173 
1174 void cx23885_video_unregister(struct cx23885_dev *dev)
1175 {
1176 	dprintk(1, "%s()\n", __func__);
1177 	cx23885_irq_remove(dev, 0x01);
1178 
1179 	if (dev->vbi_dev) {
1180 		if (video_is_registered(dev->vbi_dev))
1181 			video_unregister_device(dev->vbi_dev);
1182 		else
1183 			video_device_release(dev->vbi_dev);
1184 		dev->vbi_dev = NULL;
1185 	}
1186 	if (dev->video_dev) {
1187 		if (video_is_registered(dev->video_dev))
1188 			video_unregister_device(dev->video_dev);
1189 		else
1190 			video_device_release(dev->video_dev);
1191 		dev->video_dev = NULL;
1192 	}
1193 
1194 	if (dev->audio_dev)
1195 		cx23885_audio_unregister(dev);
1196 }
1197 
1198 int cx23885_video_register(struct cx23885_dev *dev)
1199 {
1200 	struct vb2_queue *q;
1201 	int err;
1202 
1203 	dprintk(1, "%s()\n", __func__);
1204 
1205 	/* Initialize VBI template */
1206 	cx23885_vbi_template = cx23885_video_template;
1207 	strscpy(cx23885_vbi_template.name, "cx23885-vbi",
1208 		sizeof(cx23885_vbi_template.name));
1209 
1210 	dev->tvnorm = V4L2_STD_NTSC_M;
1211 	dev->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV);
1212 	dev->field = V4L2_FIELD_INTERLACED;
1213 	dev->width = 720;
1214 	dev->height = norm_maxh(dev->tvnorm);
1215 
1216 	/* init video dma queues */
1217 	INIT_LIST_HEAD(&dev->vidq.active);
1218 
1219 	/* init vbi dma queues */
1220 	INIT_LIST_HEAD(&dev->vbiq.active);
1221 
1222 	cx23885_irq_add_enable(dev, 0x01);
1223 
1224 	if ((TUNER_ABSENT != dev->tuner_type) &&
1225 			((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
1226 		struct v4l2_subdev *sd = NULL;
1227 
1228 		if (dev->tuner_addr)
1229 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1230 				&dev->i2c_bus[dev->tuner_bus].i2c_adap,
1231 				"tuner", dev->tuner_addr, NULL);
1232 		else
1233 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1234 				&dev->i2c_bus[dev->tuner_bus].i2c_adap,
1235 				"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1236 		if (sd) {
1237 			struct tuner_setup tun_setup;
1238 
1239 			memset(&tun_setup, 0, sizeof(tun_setup));
1240 			tun_setup.mode_mask = T_ANALOG_TV;
1241 			tun_setup.type = dev->tuner_type;
1242 			tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1243 			tun_setup.tuner_callback = cx23885_tuner_callback;
1244 
1245 			v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1246 
1247 			if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) ||
1248 			    (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) {
1249 				struct xc2028_ctrl ctrl = {
1250 					.fname = XC2028_DEFAULT_FIRMWARE,
1251 					.max_len = 64
1252 				};
1253 				struct v4l2_priv_tun_config cfg = {
1254 					.tuner = dev->tuner_type,
1255 					.priv = &ctrl
1256 				};
1257 				v4l2_subdev_call(sd, tuner, s_config, &cfg);
1258 			}
1259 
1260 			if (dev->board == CX23885_BOARD_AVERMEDIA_HC81R) {
1261 				struct xc2028_ctrl ctrl = {
1262 					.fname = "xc3028L-v36.fw",
1263 					.max_len = 64
1264 				};
1265 				struct v4l2_priv_tun_config cfg = {
1266 					.tuner = dev->tuner_type,
1267 					.priv = &ctrl
1268 				};
1269 				v4l2_subdev_call(sd, tuner, s_config, &cfg);
1270 			}
1271 		}
1272 	}
1273 
1274 	/* initial device configuration */
1275 	mutex_lock(&dev->lock);
1276 	cx23885_set_tvnorm(dev, dev->tvnorm);
1277 	cx23885_video_mux(dev, 0);
1278 	cx23885_audio_mux(dev, 0);
1279 	mutex_unlock(&dev->lock);
1280 
1281 	q = &dev->vb2_vidq;
1282 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1283 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1284 	q->gfp_flags = GFP_DMA32;
1285 	q->min_buffers_needed = 2;
1286 	q->drv_priv = dev;
1287 	q->buf_struct_size = sizeof(struct cx23885_buffer);
1288 	q->ops = &cx23885_video_qops;
1289 	q->mem_ops = &vb2_dma_sg_memops;
1290 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1291 	q->lock = &dev->lock;
1292 	q->dev = &dev->pci->dev;
1293 
1294 	err = vb2_queue_init(q);
1295 	if (err < 0)
1296 		goto fail_unreg;
1297 
1298 	q = &dev->vb2_vbiq;
1299 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1300 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1301 	q->gfp_flags = GFP_DMA32;
1302 	q->min_buffers_needed = 2;
1303 	q->drv_priv = dev;
1304 	q->buf_struct_size = sizeof(struct cx23885_buffer);
1305 	q->ops = &cx23885_vbi_qops;
1306 	q->mem_ops = &vb2_dma_sg_memops;
1307 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1308 	q->lock = &dev->lock;
1309 	q->dev = &dev->pci->dev;
1310 
1311 	err = vb2_queue_init(q);
1312 	if (err < 0)
1313 		goto fail_unreg;
1314 
1315 	/* register Video device */
1316 	dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1317 		&cx23885_video_template, "video");
1318 	dev->video_dev->queue = &dev->vb2_vidq;
1319 	err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1320 				    video_nr[dev->nr]);
1321 	if (err < 0) {
1322 		pr_info("%s: can't register video device\n",
1323 			dev->name);
1324 		goto fail_unreg;
1325 	}
1326 	pr_info("%s: registered device %s [v4l2]\n",
1327 	       dev->name, video_device_node_name(dev->video_dev));
1328 
1329 	/* register VBI device */
1330 	dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
1331 		&cx23885_vbi_template, "vbi");
1332 	dev->vbi_dev->queue = &dev->vb2_vbiq;
1333 	err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
1334 				    vbi_nr[dev->nr]);
1335 	if (err < 0) {
1336 		pr_info("%s: can't register vbi device\n",
1337 			dev->name);
1338 		goto fail_unreg;
1339 	}
1340 	pr_info("%s: registered device %s\n",
1341 	       dev->name, video_device_node_name(dev->vbi_dev));
1342 
1343 	/* Register ALSA audio device */
1344 	dev->audio_dev = cx23885_audio_register(dev);
1345 
1346 	return 0;
1347 
1348 fail_unreg:
1349 	cx23885_video_unregister(dev);
1350 	return err;
1351 }
1352