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[deliverable/linux.git] / drivers / media / pci / cx23885 / cx23885-video.c
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 <linux/init.h>
19 #include <linux/list.h>
20 #include <linux/module.h>
21 #include <linux/moduleparam.h>
22 #include <linux/kmod.h>
23 #include <linux/kernel.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
26 #include <linux/delay.h>
27 #include <linux/kthread.h>
28 #include <asm/div64.h>
29
30 #include "cx23885.h"
31 #include "cx23885-video.h"
32 #include <media/v4l2-common.h>
33 #include <media/v4l2-ioctl.h>
34 #include <media/v4l2-event.h>
35 #include "cx23885-ioctl.h"
36 #include "tuner-xc2028.h"
37
38 #include <media/cx25840.h>
39
40 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
41 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
42 MODULE_LICENSE("GPL");
43
44 /* ------------------------------------------------------------------ */
45
46 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
47 static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
48
49 module_param_array(video_nr, int, NULL, 0444);
50 module_param_array(vbi_nr, int, NULL, 0444);
51
52 MODULE_PARM_DESC(video_nr, "video device numbers");
53 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
54
55 static unsigned int video_debug;
56 module_param(video_debug, int, 0644);
57 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
58
59 static unsigned int irq_debug;
60 module_param(irq_debug, int, 0644);
61 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
62
63 static unsigned int vid_limit = 16;
64 module_param(vid_limit, int, 0644);
65 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
66
67 #define dprintk(level, fmt, arg...)\
68 do { if (video_debug >= level)\
69 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
70 } while (0)
71
72 /* ------------------------------------------------------------------- */
73 /* static data */
74
75 #define FORMAT_FLAGS_PACKED 0x01
76 static struct cx23885_fmt formats[] = {
77 {
78 .name = "4:2:2, packed, YUYV",
79 .fourcc = V4L2_PIX_FMT_YUYV,
80 .depth = 16,
81 .flags = FORMAT_FLAGS_PACKED,
82 }
83 };
84
85 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
86 {
87 unsigned int i;
88
89 for (i = 0; i < ARRAY_SIZE(formats); i++)
90 if (formats[i].fourcc == fourcc)
91 return formats+i;
92 return NULL;
93 }
94
95 /* ------------------------------------------------------------------- */
96
97 void cx23885_video_wakeup(struct cx23885_dev *dev,
98 struct cx23885_dmaqueue *q, u32 count)
99 {
100 struct cx23885_buffer *buf;
101
102 if (list_empty(&q->active))
103 return;
104 buf = list_entry(q->active.next,
105 struct cx23885_buffer, queue);
106
107 buf->vb.v4l2_buf.sequence = q->count++;
108 v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
109 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.v4l2_buf.index,
110 count, q->count);
111 list_del(&buf->queue);
112 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
113 }
114
115 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
116 {
117 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
118 __func__,
119 (unsigned int)norm,
120 v4l2_norm_to_name(norm));
121
122 if (dev->tvnorm != norm) {
123 if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
124 vb2_is_busy(&dev->vb2_mpegq))
125 return -EBUSY;
126 }
127
128 dev->tvnorm = norm;
129
130 call_all(dev, video, s_std, norm);
131
132 return 0;
133 }
134
135 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
136 struct pci_dev *pci,
137 struct video_device *template,
138 char *type)
139 {
140 struct video_device *vfd;
141 dprintk(1, "%s()\n", __func__);
142
143 vfd = video_device_alloc();
144 if (NULL == vfd)
145 return NULL;
146 *vfd = *template;
147 vfd->v4l2_dev = &dev->v4l2_dev;
148 vfd->release = video_device_release;
149 vfd->lock = &dev->lock;
150 snprintf(vfd->name, sizeof(vfd->name), "%s (%s)",
151 cx23885_boards[dev->board].name, type);
152 video_set_drvdata(vfd, dev);
153 return vfd;
154 }
155
156 int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data)
157 {
158 /* 8 bit registers, 8 bit values */
159 u8 buf[] = { reg, data };
160
161 struct i2c_msg msg = { .addr = 0x98 >> 1,
162 .flags = 0, .buf = buf, .len = 2 };
163
164 return i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg, 1);
165 }
166
167 u8 cx23885_flatiron_read(struct cx23885_dev *dev, u8 reg)
168 {
169 /* 8 bit registers, 8 bit values */
170 int ret;
171 u8 b0[] = { reg };
172 u8 b1[] = { 0 };
173
174 struct i2c_msg msg[] = {
175 { .addr = 0x98 >> 1, .flags = 0, .buf = b0, .len = 1 },
176 { .addr = 0x98 >> 1, .flags = I2C_M_RD, .buf = b1, .len = 1 }
177 };
178
179 ret = i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg[0], 2);
180 if (ret != 2)
181 printk(KERN_ERR "%s() error\n", __func__);
182
183 return b1[0];
184 }
185
186 static void cx23885_flatiron_dump(struct cx23885_dev *dev)
187 {
188 int i;
189 dprintk(1, "Flatiron dump\n");
190 for (i = 0; i < 0x24; i++) {
191 dprintk(1, "FI[%02x] = %02x\n", i,
192 cx23885_flatiron_read(dev, i));
193 }
194 }
195
196 static int cx23885_flatiron_mux(struct cx23885_dev *dev, int input)
197 {
198 u8 val;
199 dprintk(1, "%s(input = %d)\n", __func__, input);
200
201 if (input == 1)
202 val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) & ~FLD_CH_SEL;
203 else if (input == 2)
204 val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) | FLD_CH_SEL;
205 else
206 return -EINVAL;
207
208 val |= 0x20; /* Enable clock to delta-sigma and dec filter */
209
210 cx23885_flatiron_write(dev, CH_PWR_CTRL1, val);
211
212 /* Wake up */
213 cx23885_flatiron_write(dev, CH_PWR_CTRL2, 0);
214
215 if (video_debug)
216 cx23885_flatiron_dump(dev);
217
218 return 0;
219 }
220
221 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
222 {
223 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
224 __func__,
225 input, INPUT(input)->vmux,
226 INPUT(input)->gpio0, INPUT(input)->gpio1,
227 INPUT(input)->gpio2, INPUT(input)->gpio3);
228 dev->input = input;
229
230 if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
231 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2 ||
232 dev->board == CX23885_BOARD_MYGICA_X8507) {
233 /* Select Analog TV */
234 if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
235 cx23885_gpio_clear(dev, GPIO_0);
236 }
237
238 /* Tell the internal A/V decoder */
239 v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
240 INPUT(input)->vmux, 0, 0);
241
242 if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) ||
243 (dev->board == CX23885_BOARD_MPX885) ||
244 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) ||
245 (dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE) ||
246 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
247 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
248 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
249 (dev->board == CX23885_BOARD_MYGICA_X8507) ||
250 (dev->board == CX23885_BOARD_AVERMEDIA_HC81R)) {
251 /* Configure audio routing */
252 v4l2_subdev_call(dev->sd_cx25840, audio, s_routing,
253 INPUT(input)->amux, 0, 0);
254
255 if (INPUT(input)->amux == CX25840_AUDIO7)
256 cx23885_flatiron_mux(dev, 1);
257 else if (INPUT(input)->amux == CX25840_AUDIO6)
258 cx23885_flatiron_mux(dev, 2);
259 }
260
261 return 0;
262 }
263
264 static int cx23885_audio_mux(struct cx23885_dev *dev, unsigned int input)
265 {
266 dprintk(1, "%s(input=%d)\n", __func__, input);
267
268 /* The baseband video core of the cx23885 has two audio inputs.
269 * LR1 and LR2. In almost every single case so far only HVR1xxx
270 * cards we've only ever supported LR1. Time to support LR2,
271 * which is available via the optional white breakout header on
272 * the board.
273 * We'll use a could of existing enums in the card struct to allow
274 * devs to specify which baseband input they need, or just default
275 * to what we've always used.
276 */
277 if (INPUT(input)->amux == CX25840_AUDIO7)
278 cx23885_flatiron_mux(dev, 1);
279 else if (INPUT(input)->amux == CX25840_AUDIO6)
280 cx23885_flatiron_mux(dev, 2);
281 else {
282 /* Not specifically defined, assume the default. */
283 cx23885_flatiron_mux(dev, 1);
284 }
285
286 return 0;
287 }
288
289 /* ------------------------------------------------------------------ */
290 static int cx23885_start_video_dma(struct cx23885_dev *dev,
291 struct cx23885_dmaqueue *q,
292 struct cx23885_buffer *buf)
293 {
294 dprintk(1, "%s()\n", __func__);
295
296 /* Stop the dma/fifo before we tamper with it's risc programs */
297 cx_clear(VID_A_DMA_CTL, 0x11);
298
299 /* setup fifo + format */
300 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
301 buf->bpl, buf->risc.dma);
302
303 /* reset counter */
304 cx_write(VID_A_GPCNT_CTL, 3);
305 q->count = 0;
306
307 /* enable irq */
308 cx23885_irq_add_enable(dev, 0x01);
309 cx_set(VID_A_INT_MSK, 0x000011);
310
311 /* start dma */
312 cx_set(DEV_CNTRL2, (1<<5));
313 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
314
315 return 0;
316 }
317
318 static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
319 unsigned int *num_buffers, unsigned int *num_planes,
320 unsigned int sizes[], void *alloc_ctxs[])
321 {
322 struct cx23885_dev *dev = q->drv_priv;
323
324 *num_planes = 1;
325 sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
326 return 0;
327 }
328
329 static int buffer_prepare(struct vb2_buffer *vb)
330 {
331 struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
332 struct cx23885_buffer *buf =
333 container_of(vb, struct cx23885_buffer, vb);
334 u32 line0_offset, line1_offset;
335 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
336 int field_tff;
337 int ret;
338
339 buf->bpl = (dev->width * dev->fmt->depth) >> 3;
340
341 if (vb2_plane_size(vb, 0) < dev->height * buf->bpl)
342 return -EINVAL;
343 vb2_set_plane_payload(vb, 0, dev->height * buf->bpl);
344
345 ret = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
346 if (!ret)
347 return -EIO;
348
349 switch (dev->field) {
350 case V4L2_FIELD_TOP:
351 cx23885_risc_buffer(dev->pci, &buf->risc,
352 sgt->sgl, 0, UNSET,
353 buf->bpl, 0, dev->height);
354 break;
355 case V4L2_FIELD_BOTTOM:
356 cx23885_risc_buffer(dev->pci, &buf->risc,
357 sgt->sgl, UNSET, 0,
358 buf->bpl, 0, dev->height);
359 break;
360 case V4L2_FIELD_INTERLACED:
361 if (dev->tvnorm & V4L2_STD_525_60)
362 /* NTSC or */
363 field_tff = 1;
364 else
365 field_tff = 0;
366
367 if (cx23885_boards[dev->board].force_bff)
368 /* PAL / SECAM OR 888 in NTSC MODE */
369 field_tff = 0;
370
371 if (field_tff) {
372 /* cx25840 transmits NTSC bottom field first */
373 dprintk(1, "%s() Creating TFF/NTSC risc\n",
374 __func__);
375 line0_offset = buf->bpl;
376 line1_offset = 0;
377 } else {
378 /* All other formats are top field first */
379 dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
380 __func__);
381 line0_offset = 0;
382 line1_offset = buf->bpl;
383 }
384 cx23885_risc_buffer(dev->pci, &buf->risc,
385 sgt->sgl, line0_offset,
386 line1_offset,
387 buf->bpl, buf->bpl,
388 dev->height >> 1);
389 break;
390 case V4L2_FIELD_SEQ_TB:
391 cx23885_risc_buffer(dev->pci, &buf->risc,
392 sgt->sgl,
393 0, buf->bpl * (dev->height >> 1),
394 buf->bpl, 0,
395 dev->height >> 1);
396 break;
397 case V4L2_FIELD_SEQ_BT:
398 cx23885_risc_buffer(dev->pci, &buf->risc,
399 sgt->sgl,
400 buf->bpl * (dev->height >> 1), 0,
401 buf->bpl, 0,
402 dev->height >> 1);
403 break;
404 default:
405 BUG();
406 }
407 dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
408 buf, buf->vb.v4l2_buf.index,
409 dev->width, dev->height, dev->fmt->depth, dev->fmt->name,
410 (unsigned long)buf->risc.dma);
411 return 0;
412 }
413
414 static void buffer_finish(struct vb2_buffer *vb)
415 {
416 struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
417 struct cx23885_buffer *buf = container_of(vb,
418 struct cx23885_buffer, vb);
419 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
420
421 cx23885_free_buffer(vb->vb2_queue->drv_priv, buf);
422
423 dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
424 }
425
426 /*
427 * The risc program for each buffer works as follows: it starts with a simple
428 * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
429 * buffer follows and at the end we have a JUMP back to the start + 12 (skipping
430 * the initial JUMP).
431 *
432 * This is the risc program of the first buffer to be queued if the active list
433 * is empty and it just keeps DMAing this buffer without generating any
434 * interrupts.
435 *
436 * If a new buffer is added then the initial JUMP in the code for that buffer
437 * will generate an interrupt which signals that the previous buffer has been
438 * DMAed successfully and that it can be returned to userspace.
439 *
440 * It also sets the final jump of the previous buffer to the start of the new
441 * buffer, thus chaining the new buffer into the DMA chain. This is a single
442 * atomic u32 write, so there is no race condition.
443 *
444 * The end-result of all this that you only get an interrupt when a buffer
445 * is ready, so the control flow is very easy.
446 */
447 static void buffer_queue(struct vb2_buffer *vb)
448 {
449 struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
450 struct cx23885_buffer *buf = container_of(vb,
451 struct cx23885_buffer, vb);
452 struct cx23885_buffer *prev;
453 struct cx23885_dmaqueue *q = &dev->vidq;
454 unsigned long flags;
455
456 /* add jump to start */
457 buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
458 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
459 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
460 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
461
462 spin_lock_irqsave(&dev->slock, flags);
463 if (list_empty(&q->active)) {
464 list_add_tail(&buf->queue, &q->active);
465 dprintk(2, "[%p/%d] buffer_queue - first active\n",
466 buf, buf->vb.v4l2_buf.index);
467 } else {
468 buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
469 prev = list_entry(q->active.prev, struct cx23885_buffer,
470 queue);
471 list_add_tail(&buf->queue, &q->active);
472 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
473 dprintk(2, "[%p/%d] buffer_queue - append to active\n",
474 buf, buf->vb.v4l2_buf.index);
475 }
476 spin_unlock_irqrestore(&dev->slock, flags);
477 }
478
479 static int cx23885_start_streaming(struct vb2_queue *q, unsigned int count)
480 {
481 struct cx23885_dev *dev = q->drv_priv;
482 struct cx23885_dmaqueue *dmaq = &dev->vidq;
483 struct cx23885_buffer *buf = list_entry(dmaq->active.next,
484 struct cx23885_buffer, queue);
485
486 cx23885_start_video_dma(dev, dmaq, buf);
487 return 0;
488 }
489
490 static void cx23885_stop_streaming(struct vb2_queue *q)
491 {
492 struct cx23885_dev *dev = q->drv_priv;
493 struct cx23885_dmaqueue *dmaq = &dev->vidq;
494 unsigned long flags;
495
496 cx_clear(VID_A_DMA_CTL, 0x11);
497 spin_lock_irqsave(&dev->slock, flags);
498 while (!list_empty(&dmaq->active)) {
499 struct cx23885_buffer *buf = list_entry(dmaq->active.next,
500 struct cx23885_buffer, queue);
501
502 list_del(&buf->queue);
503 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
504 }
505 spin_unlock_irqrestore(&dev->slock, flags);
506 }
507
508 static struct vb2_ops cx23885_video_qops = {
509 .queue_setup = queue_setup,
510 .buf_prepare = buffer_prepare,
511 .buf_finish = buffer_finish,
512 .buf_queue = buffer_queue,
513 .wait_prepare = vb2_ops_wait_prepare,
514 .wait_finish = vb2_ops_wait_finish,
515 .start_streaming = cx23885_start_streaming,
516 .stop_streaming = cx23885_stop_streaming,
517 };
518
519 /* ------------------------------------------------------------------ */
520 /* VIDEO IOCTLS */
521
522 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
523 struct v4l2_format *f)
524 {
525 struct cx23885_dev *dev = video_drvdata(file);
526
527 f->fmt.pix.width = dev->width;
528 f->fmt.pix.height = dev->height;
529 f->fmt.pix.field = dev->field;
530 f->fmt.pix.pixelformat = dev->fmt->fourcc;
531 f->fmt.pix.bytesperline =
532 (f->fmt.pix.width * dev->fmt->depth) >> 3;
533 f->fmt.pix.sizeimage =
534 f->fmt.pix.height * f->fmt.pix.bytesperline;
535 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
536
537 return 0;
538 }
539
540 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
541 struct v4l2_format *f)
542 {
543 struct cx23885_dev *dev = video_drvdata(file);
544 struct cx23885_fmt *fmt;
545 enum v4l2_field field;
546 unsigned int maxw, maxh;
547
548 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
549 if (NULL == fmt)
550 return -EINVAL;
551
552 field = f->fmt.pix.field;
553 maxw = norm_maxw(dev->tvnorm);
554 maxh = norm_maxh(dev->tvnorm);
555
556 if (V4L2_FIELD_ANY == field) {
557 field = (f->fmt.pix.height > maxh/2)
558 ? V4L2_FIELD_INTERLACED
559 : V4L2_FIELD_BOTTOM;
560 }
561
562 switch (field) {
563 case V4L2_FIELD_TOP:
564 case V4L2_FIELD_BOTTOM:
565 maxh = maxh / 2;
566 break;
567 case V4L2_FIELD_INTERLACED:
568 case V4L2_FIELD_SEQ_TB:
569 case V4L2_FIELD_SEQ_BT:
570 break;
571 default:
572 field = V4L2_FIELD_INTERLACED;
573 break;
574 }
575
576 f->fmt.pix.field = field;
577 v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
578 &f->fmt.pix.height, 32, maxh, 0, 0);
579 f->fmt.pix.bytesperline =
580 (f->fmt.pix.width * fmt->depth) >> 3;
581 f->fmt.pix.sizeimage =
582 f->fmt.pix.height * f->fmt.pix.bytesperline;
583 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
584
585 return 0;
586 }
587
588 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
589 struct v4l2_format *f)
590 {
591 struct cx23885_dev *dev = video_drvdata(file);
592 struct v4l2_mbus_framefmt mbus_fmt;
593 int err;
594
595 dprintk(2, "%s()\n", __func__);
596 err = vidioc_try_fmt_vid_cap(file, priv, f);
597
598 if (0 != err)
599 return err;
600
601 if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
602 vb2_is_busy(&dev->vb2_mpegq))
603 return -EBUSY;
604
605 dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
606 dev->width = f->fmt.pix.width;
607 dev->height = f->fmt.pix.height;
608 dev->field = f->fmt.pix.field;
609 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
610 dev->width, dev->height, dev->field);
611 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
612 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
613 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
614 /* s_mbus_fmt overwrites f->fmt.pix.field, restore it */
615 f->fmt.pix.field = dev->field;
616 return 0;
617 }
618
619 static int vidioc_querycap(struct file *file, void *priv,
620 struct v4l2_capability *cap)
621 {
622 struct cx23885_dev *dev = video_drvdata(file);
623 struct video_device *vdev = video_devdata(file);
624
625 strcpy(cap->driver, "cx23885");
626 strlcpy(cap->card, cx23885_boards[dev->board].name,
627 sizeof(cap->card));
628 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
629 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_AUDIO;
630 if (dev->tuner_type != TUNER_ABSENT)
631 cap->device_caps |= V4L2_CAP_TUNER;
632 if (vdev->vfl_type == VFL_TYPE_VBI)
633 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
634 else
635 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
636 cap->capabilities = cap->device_caps | V4L2_CAP_VBI_CAPTURE |
637 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_DEVICE_CAPS;
638 return 0;
639 }
640
641 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
642 struct v4l2_fmtdesc *f)
643 {
644 if (unlikely(f->index >= ARRAY_SIZE(formats)))
645 return -EINVAL;
646
647 strlcpy(f->description, formats[f->index].name,
648 sizeof(f->description));
649 f->pixelformat = formats[f->index].fourcc;
650
651 return 0;
652 }
653
654 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
655 {
656 struct cx23885_dev *dev = video_drvdata(file);
657 dprintk(1, "%s()\n", __func__);
658
659 *id = dev->tvnorm;
660 return 0;
661 }
662
663 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms)
664 {
665 struct cx23885_dev *dev = video_drvdata(file);
666 dprintk(1, "%s()\n", __func__);
667
668 return cx23885_set_tvnorm(dev, tvnorms);
669 }
670
671 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
672 {
673 static const char *iname[] = {
674 [CX23885_VMUX_COMPOSITE1] = "Composite1",
675 [CX23885_VMUX_COMPOSITE2] = "Composite2",
676 [CX23885_VMUX_COMPOSITE3] = "Composite3",
677 [CX23885_VMUX_COMPOSITE4] = "Composite4",
678 [CX23885_VMUX_SVIDEO] = "S-Video",
679 [CX23885_VMUX_COMPONENT] = "Component",
680 [CX23885_VMUX_TELEVISION] = "Television",
681 [CX23885_VMUX_CABLE] = "Cable TV",
682 [CX23885_VMUX_DVB] = "DVB",
683 [CX23885_VMUX_DEBUG] = "for debug only",
684 };
685 unsigned int n;
686 dprintk(1, "%s()\n", __func__);
687
688 n = i->index;
689 if (n >= MAX_CX23885_INPUT)
690 return -EINVAL;
691
692 if (0 == INPUT(n)->type)
693 return -EINVAL;
694
695 i->index = n;
696 i->type = V4L2_INPUT_TYPE_CAMERA;
697 strcpy(i->name, iname[INPUT(n)->type]);
698 i->std = CX23885_NORMS;
699 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
700 (CX23885_VMUX_CABLE == INPUT(n)->type)) {
701 i->type = V4L2_INPUT_TYPE_TUNER;
702 i->audioset = 4;
703 } else {
704 /* Two selectable audio inputs for non-tv inputs */
705 i->audioset = 3;
706 }
707
708 if (dev->input == n) {
709 /* enum'd input matches our configured input.
710 * Ask the video decoder to process the call
711 * and give it an oppertunity to update the
712 * status field.
713 */
714 call_all(dev, video, g_input_status, &i->status);
715 }
716
717 return 0;
718 }
719
720 static int vidioc_enum_input(struct file *file, void *priv,
721 struct v4l2_input *i)
722 {
723 struct cx23885_dev *dev = video_drvdata(file);
724 dprintk(1, "%s()\n", __func__);
725 return cx23885_enum_input(dev, i);
726 }
727
728 int cx23885_get_input(struct file *file, void *priv, unsigned int *i)
729 {
730 struct cx23885_dev *dev = video_drvdata(file);
731
732 *i = dev->input;
733 dprintk(1, "%s() returns %d\n", __func__, *i);
734 return 0;
735 }
736
737 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
738 {
739 return cx23885_get_input(file, priv, i);
740 }
741
742 int cx23885_set_input(struct file *file, void *priv, unsigned int i)
743 {
744 struct cx23885_dev *dev = video_drvdata(file);
745
746 dprintk(1, "%s(%d)\n", __func__, i);
747
748 if (i >= MAX_CX23885_INPUT) {
749 dprintk(1, "%s() -EINVAL\n", __func__);
750 return -EINVAL;
751 }
752
753 if (INPUT(i)->type == 0)
754 return -EINVAL;
755
756 cx23885_video_mux(dev, i);
757
758 /* By default establish the default audio input for the card also */
759 /* Caller is free to use VIDIOC_S_AUDIO to override afterwards */
760 cx23885_audio_mux(dev, i);
761 return 0;
762 }
763
764 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
765 {
766 return cx23885_set_input(file, priv, i);
767 }
768
769 static int vidioc_log_status(struct file *file, void *priv)
770 {
771 struct cx23885_dev *dev = video_drvdata(file);
772
773 call_all(dev, core, log_status);
774 return 0;
775 }
776
777 static int cx23885_query_audinput(struct file *file, void *priv,
778 struct v4l2_audio *i)
779 {
780 struct cx23885_dev *dev = video_drvdata(file);
781 static const char *iname[] = {
782 [0] = "Baseband L/R 1",
783 [1] = "Baseband L/R 2",
784 [2] = "TV",
785 };
786 unsigned int n;
787 dprintk(1, "%s()\n", __func__);
788
789 n = i->index;
790 if (n >= 3)
791 return -EINVAL;
792
793 memset(i, 0, sizeof(*i));
794 i->index = n;
795 strcpy(i->name, iname[n]);
796 i->capability = V4L2_AUDCAP_STEREO;
797 return 0;
798
799 }
800
801 static int vidioc_enum_audinput(struct file *file, void *priv,
802 struct v4l2_audio *i)
803 {
804 return cx23885_query_audinput(file, priv, i);
805 }
806
807 static int vidioc_g_audinput(struct file *file, void *priv,
808 struct v4l2_audio *i)
809 {
810 struct cx23885_dev *dev = video_drvdata(file);
811
812 if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
813 (CX23885_VMUX_CABLE == INPUT(dev->input)->type))
814 i->index = 2;
815 else
816 i->index = dev->audinput;
817 dprintk(1, "%s(input=%d)\n", __func__, i->index);
818
819 return cx23885_query_audinput(file, priv, i);
820 }
821
822 static int vidioc_s_audinput(struct file *file, void *priv,
823 const struct v4l2_audio *i)
824 {
825 struct cx23885_dev *dev = video_drvdata(file);
826
827 if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
828 (CX23885_VMUX_CABLE == INPUT(dev->input)->type)) {
829 return i->index != 2 ? -EINVAL : 0;
830 }
831 if (i->index > 1)
832 return -EINVAL;
833
834 dprintk(1, "%s(%d)\n", __func__, i->index);
835
836 dev->audinput = i->index;
837
838 /* Skip the audio defaults from the cards struct, caller wants
839 * directly touch the audio mux hardware. */
840 cx23885_flatiron_mux(dev, dev->audinput + 1);
841 return 0;
842 }
843
844 static int vidioc_g_tuner(struct file *file, void *priv,
845 struct v4l2_tuner *t)
846 {
847 struct cx23885_dev *dev = video_drvdata(file);
848
849 if (dev->tuner_type == TUNER_ABSENT)
850 return -EINVAL;
851 if (0 != t->index)
852 return -EINVAL;
853
854 strcpy(t->name, "Television");
855
856 call_all(dev, tuner, g_tuner, t);
857 return 0;
858 }
859
860 static int vidioc_s_tuner(struct file *file, void *priv,
861 const struct v4l2_tuner *t)
862 {
863 struct cx23885_dev *dev = video_drvdata(file);
864
865 if (dev->tuner_type == TUNER_ABSENT)
866 return -EINVAL;
867 if (0 != t->index)
868 return -EINVAL;
869 /* Update the A/V core */
870 call_all(dev, tuner, s_tuner, t);
871
872 return 0;
873 }
874
875 static int vidioc_g_frequency(struct file *file, void *priv,
876 struct v4l2_frequency *f)
877 {
878 struct cx23885_dev *dev = video_drvdata(file);
879
880 if (dev->tuner_type == TUNER_ABSENT)
881 return -EINVAL;
882
883 f->type = V4L2_TUNER_ANALOG_TV;
884 f->frequency = dev->freq;
885
886 call_all(dev, tuner, g_frequency, f);
887
888 return 0;
889 }
890
891 static int cx23885_set_freq(struct cx23885_dev *dev, const struct v4l2_frequency *f)
892 {
893 struct v4l2_ctrl *mute;
894 int old_mute_val = 1;
895
896 if (dev->tuner_type == TUNER_ABSENT)
897 return -EINVAL;
898 if (unlikely(f->tuner != 0))
899 return -EINVAL;
900
901 dev->freq = f->frequency;
902
903 /* I need to mute audio here */
904 mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
905 if (mute) {
906 old_mute_val = v4l2_ctrl_g_ctrl(mute);
907 if (!old_mute_val)
908 v4l2_ctrl_s_ctrl(mute, 1);
909 }
910
911 call_all(dev, tuner, s_frequency, f);
912
913 /* When changing channels it is required to reset TVAUDIO */
914 msleep(100);
915
916 /* I need to unmute audio here */
917 if (old_mute_val == 0)
918 v4l2_ctrl_s_ctrl(mute, old_mute_val);
919
920 return 0;
921 }
922
923 static int cx23885_set_freq_via_ops(struct cx23885_dev *dev,
924 const struct v4l2_frequency *f)
925 {
926 struct v4l2_ctrl *mute;
927 int old_mute_val = 1;
928 struct vb2_dvb_frontend *vfe;
929 struct dvb_frontend *fe;
930
931 struct analog_parameters params = {
932 .mode = V4L2_TUNER_ANALOG_TV,
933 .audmode = V4L2_TUNER_MODE_STEREO,
934 .std = dev->tvnorm,
935 .frequency = f->frequency
936 };
937
938 dev->freq = f->frequency;
939
940 /* I need to mute audio here */
941 mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
942 if (mute) {
943 old_mute_val = v4l2_ctrl_g_ctrl(mute);
944 if (!old_mute_val)
945 v4l2_ctrl_s_ctrl(mute, 1);
946 }
947
948 /* If HVR1850 */
949 dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__,
950 params.frequency, f->tuner, params.std);
951
952 vfe = vb2_dvb_get_frontend(&dev->ts2.frontends, 1);
953 if (!vfe) {
954 return -EINVAL;
955 }
956
957 fe = vfe->dvb.frontend;
958
959 if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
960 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
961 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111))
962 fe = &dev->ts1.analog_fe;
963
964 if (fe && fe->ops.tuner_ops.set_analog_params) {
965 call_all(dev, video, s_std, dev->tvnorm);
966 fe->ops.tuner_ops.set_analog_params(fe, &params);
967 }
968 else
969 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__);
970
971 /* When changing channels it is required to reset TVAUDIO */
972 msleep(100);
973
974 /* I need to unmute audio here */
975 if (old_mute_val == 0)
976 v4l2_ctrl_s_ctrl(mute, old_mute_val);
977
978 return 0;
979 }
980
981 int cx23885_set_frequency(struct file *file, void *priv,
982 const struct v4l2_frequency *f)
983 {
984 struct cx23885_dev *dev = video_drvdata(file);
985 int ret;
986
987 switch (dev->board) {
988 case CX23885_BOARD_HAUPPAUGE_HVR1255:
989 case CX23885_BOARD_HAUPPAUGE_HVR1255_22111:
990 case CX23885_BOARD_HAUPPAUGE_HVR1850:
991 ret = cx23885_set_freq_via_ops(dev, f);
992 break;
993 default:
994 ret = cx23885_set_freq(dev, f);
995 }
996
997 return ret;
998 }
999
1000 static int vidioc_s_frequency(struct file *file, void *priv,
1001 const struct v4l2_frequency *f)
1002 {
1003 return cx23885_set_frequency(file, priv, f);
1004 }
1005
1006 /* ----------------------------------------------------------- */
1007
1008 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1009 {
1010 u32 mask, count;
1011 int handled = 0;
1012
1013 mask = cx_read(VID_A_INT_MSK);
1014 if (0 == (status & mask))
1015 return handled;
1016
1017 cx_write(VID_A_INT_STAT, status);
1018
1019 /* risc op code error, fifo overflow or line sync detection error */
1020 if ((status & VID_BC_MSK_OPC_ERR) ||
1021 (status & VID_BC_MSK_SYNC) ||
1022 (status & VID_BC_MSK_OF)) {
1023
1024 if (status & VID_BC_MSK_OPC_ERR) {
1025 dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
1026 VID_BC_MSK_OPC_ERR);
1027 printk(KERN_WARNING "%s: video risc op code error\n",
1028 dev->name);
1029 cx23885_sram_channel_dump(dev,
1030 &dev->sram_channels[SRAM_CH01]);
1031 }
1032
1033 if (status & VID_BC_MSK_SYNC)
1034 dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) "
1035 "video lines miss-match\n",
1036 VID_BC_MSK_SYNC);
1037
1038 if (status & VID_BC_MSK_OF)
1039 dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n",
1040 VID_BC_MSK_OF);
1041
1042 }
1043
1044 /* Video */
1045 if (status & VID_BC_MSK_RISCI1) {
1046 spin_lock(&dev->slock);
1047 count = cx_read(VID_A_GPCNT);
1048 cx23885_video_wakeup(dev, &dev->vidq, count);
1049 spin_unlock(&dev->slock);
1050 handled++;
1051 }
1052
1053 /* Allow the VBI framework to process it's payload */
1054 handled += cx23885_vbi_irq(dev, status);
1055
1056 return handled;
1057 }
1058
1059 /* ----------------------------------------------------------- */
1060 /* exported stuff */
1061
1062 static const struct v4l2_file_operations video_fops = {
1063 .owner = THIS_MODULE,
1064 .open = v4l2_fh_open,
1065 .release = vb2_fop_release,
1066 .read = vb2_fop_read,
1067 .poll = vb2_fop_poll,
1068 .unlocked_ioctl = video_ioctl2,
1069 .mmap = vb2_fop_mmap,
1070 };
1071
1072 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1073 .vidioc_querycap = vidioc_querycap,
1074 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1075 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1076 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1077 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1078 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt,
1079 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
1080 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
1081 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1082 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1083 .vidioc_querybuf = vb2_ioctl_querybuf,
1084 .vidioc_qbuf = vb2_ioctl_qbuf,
1085 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1086 .vidioc_streamon = vb2_ioctl_streamon,
1087 .vidioc_streamoff = vb2_ioctl_streamoff,
1088 .vidioc_s_std = vidioc_s_std,
1089 .vidioc_g_std = vidioc_g_std,
1090 .vidioc_enum_input = vidioc_enum_input,
1091 .vidioc_g_input = vidioc_g_input,
1092 .vidioc_s_input = vidioc_s_input,
1093 .vidioc_log_status = vidioc_log_status,
1094 .vidioc_g_tuner = vidioc_g_tuner,
1095 .vidioc_s_tuner = vidioc_s_tuner,
1096 .vidioc_g_frequency = vidioc_g_frequency,
1097 .vidioc_s_frequency = vidioc_s_frequency,
1098 #ifdef CONFIG_VIDEO_ADV_DEBUG
1099 .vidioc_g_chip_info = cx23885_g_chip_info,
1100 .vidioc_g_register = cx23885_g_register,
1101 .vidioc_s_register = cx23885_s_register,
1102 #endif
1103 .vidioc_enumaudio = vidioc_enum_audinput,
1104 .vidioc_g_audio = vidioc_g_audinput,
1105 .vidioc_s_audio = vidioc_s_audinput,
1106 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1107 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1108 };
1109
1110 static struct video_device cx23885_vbi_template;
1111 static struct video_device cx23885_video_template = {
1112 .name = "cx23885-video",
1113 .fops = &video_fops,
1114 .ioctl_ops = &video_ioctl_ops,
1115 .tvnorms = CX23885_NORMS,
1116 };
1117
1118 void cx23885_video_unregister(struct cx23885_dev *dev)
1119 {
1120 dprintk(1, "%s()\n", __func__);
1121 cx23885_irq_remove(dev, 0x01);
1122
1123 if (dev->vbi_dev) {
1124 if (video_is_registered(dev->vbi_dev))
1125 video_unregister_device(dev->vbi_dev);
1126 else
1127 video_device_release(dev->vbi_dev);
1128 dev->vbi_dev = NULL;
1129 }
1130 if (dev->video_dev) {
1131 if (video_is_registered(dev->video_dev))
1132 video_unregister_device(dev->video_dev);
1133 else
1134 video_device_release(dev->video_dev);
1135 dev->video_dev = NULL;
1136 }
1137
1138 if (dev->audio_dev)
1139 cx23885_audio_unregister(dev);
1140 }
1141
1142 int cx23885_video_register(struct cx23885_dev *dev)
1143 {
1144 struct vb2_queue *q;
1145 int err;
1146
1147 dprintk(1, "%s()\n", __func__);
1148 spin_lock_init(&dev->slock);
1149
1150 /* Initialize VBI template */
1151 cx23885_vbi_template = cx23885_video_template;
1152 strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1153
1154 dev->tvnorm = V4L2_STD_NTSC_M;
1155 dev->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV);
1156 dev->field = V4L2_FIELD_INTERLACED;
1157 dev->width = 720;
1158 dev->height = norm_maxh(dev->tvnorm);
1159
1160 /* init video dma queues */
1161 INIT_LIST_HEAD(&dev->vidq.active);
1162
1163 /* init vbi dma queues */
1164 INIT_LIST_HEAD(&dev->vbiq.active);
1165
1166 cx23885_irq_add_enable(dev, 0x01);
1167
1168 if ((TUNER_ABSENT != dev->tuner_type) &&
1169 ((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
1170 struct v4l2_subdev *sd = NULL;
1171
1172 if (dev->tuner_addr)
1173 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1174 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1175 "tuner", dev->tuner_addr, NULL);
1176 else
1177 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1178 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1179 "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1180 if (sd) {
1181 struct tuner_setup tun_setup;
1182
1183 memset(&tun_setup, 0, sizeof(tun_setup));
1184 tun_setup.mode_mask = T_ANALOG_TV;
1185 tun_setup.type = dev->tuner_type;
1186 tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1187 tun_setup.tuner_callback = cx23885_tuner_callback;
1188
1189 v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1190
1191 if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) ||
1192 (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) {
1193 struct xc2028_ctrl ctrl = {
1194 .fname = XC2028_DEFAULT_FIRMWARE,
1195 .max_len = 64
1196 };
1197 struct v4l2_priv_tun_config cfg = {
1198 .tuner = dev->tuner_type,
1199 .priv = &ctrl
1200 };
1201 v4l2_subdev_call(sd, tuner, s_config, &cfg);
1202 }
1203
1204 if (dev->board == CX23885_BOARD_AVERMEDIA_HC81R) {
1205 struct xc2028_ctrl ctrl = {
1206 .fname = "xc3028L-v36.fw",
1207 .max_len = 64
1208 };
1209 struct v4l2_priv_tun_config cfg = {
1210 .tuner = dev->tuner_type,
1211 .priv = &ctrl
1212 };
1213 v4l2_subdev_call(sd, tuner, s_config, &cfg);
1214 }
1215 }
1216 }
1217
1218 /* initial device configuration */
1219 mutex_lock(&dev->lock);
1220 cx23885_set_tvnorm(dev, dev->tvnorm);
1221 cx23885_video_mux(dev, 0);
1222 cx23885_audio_mux(dev, 0);
1223 mutex_unlock(&dev->lock);
1224
1225 q = &dev->vb2_vidq;
1226 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1227 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1228 q->gfp_flags = GFP_DMA32;
1229 q->min_buffers_needed = 2;
1230 q->drv_priv = dev;
1231 q->buf_struct_size = sizeof(struct cx23885_buffer);
1232 q->ops = &cx23885_video_qops;
1233 q->mem_ops = &vb2_dma_sg_memops;
1234 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1235 q->lock = &dev->lock;
1236
1237 err = vb2_queue_init(q);
1238 if (err < 0)
1239 goto fail_unreg;
1240
1241 q = &dev->vb2_vbiq;
1242 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1243 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1244 q->gfp_flags = GFP_DMA32;
1245 q->min_buffers_needed = 2;
1246 q->drv_priv = dev;
1247 q->buf_struct_size = sizeof(struct cx23885_buffer);
1248 q->ops = &cx23885_vbi_qops;
1249 q->mem_ops = &vb2_dma_sg_memops;
1250 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1251 q->lock = &dev->lock;
1252
1253 err = vb2_queue_init(q);
1254 if (err < 0)
1255 goto fail_unreg;
1256
1257 /* register Video device */
1258 dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1259 &cx23885_video_template, "video");
1260 dev->video_dev->queue = &dev->vb2_vidq;
1261 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1262 video_nr[dev->nr]);
1263 if (err < 0) {
1264 printk(KERN_INFO "%s: can't register video device\n",
1265 dev->name);
1266 goto fail_unreg;
1267 }
1268 printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1269 dev->name, video_device_node_name(dev->video_dev));
1270
1271 /* register VBI device */
1272 dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
1273 &cx23885_vbi_template, "vbi");
1274 dev->vbi_dev->queue = &dev->vb2_vbiq;
1275 err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
1276 vbi_nr[dev->nr]);
1277 if (err < 0) {
1278 printk(KERN_INFO "%s: can't register vbi device\n",
1279 dev->name);
1280 goto fail_unreg;
1281 }
1282 printk(KERN_INFO "%s: registered device %s\n",
1283 dev->name, video_device_node_name(dev->vbi_dev));
1284
1285 /* Register ALSA audio device */
1286 dev->audio_dev = cx23885_audio_register(dev);
1287
1288 return 0;
1289
1290 fail_unreg:
1291 cx23885_video_unregister(dev);
1292 return err;
1293 }
Linux kernel - Deliverables
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