2 * Driver for the Conexant CX23885 PCIe bridge
4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
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.
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
15 * GNU General Public License for more details.
19 #include "cx23885-video.h"
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>
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"
39 #include <media/drv-intf/cx25840.h>
41 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
42 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
43 MODULE_LICENSE("GPL");
45 /* ------------------------------------------------------------------ */
47 static unsigned int video_nr
[] = {[0 ... (CX23885_MAXBOARDS
- 1)] = UNSET
};
48 static unsigned int vbi_nr
[] = {[0 ... (CX23885_MAXBOARDS
- 1)] = UNSET
};
50 module_param_array(video_nr
, int, NULL
, 0444);
51 module_param_array(vbi_nr
, int, NULL
, 0444);
53 MODULE_PARM_DESC(video_nr
, "video device numbers");
54 MODULE_PARM_DESC(vbi_nr
, "vbi device numbers");
56 static unsigned int video_debug
;
57 module_param(video_debug
, int, 0644);
58 MODULE_PARM_DESC(video_debug
, "enable debug messages [video]");
60 static unsigned int irq_debug
;
61 module_param(irq_debug
, int, 0644);
62 MODULE_PARM_DESC(irq_debug
, "enable debug messages [IRQ handler]");
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");
68 #define dprintk(level, fmt, arg...)\
69 do { if (video_debug >= level)\
70 printk(KERN_DEBUG pr_fmt("%s: video:" fmt), \
74 /* ------------------------------------------------------------------- */
77 #define FORMAT_FLAGS_PACKED 0x01
78 static struct cx23885_fmt formats
[] = {
80 .name
= "4:2:2, packed, YUYV",
81 .fourcc
= V4L2_PIX_FMT_YUYV
,
83 .flags
= FORMAT_FLAGS_PACKED
,
87 static struct cx23885_fmt
*format_by_fourcc(unsigned int fourcc
)
91 for (i
= 0; i
< ARRAY_SIZE(formats
); i
++)
92 if (formats
[i
].fourcc
== fourcc
)
97 /* ------------------------------------------------------------------- */
99 void cx23885_video_wakeup(struct cx23885_dev
*dev
,
100 struct cx23885_dmaqueue
*q
, u32 count
)
102 struct cx23885_buffer
*buf
;
104 if (list_empty(&q
->active
))
106 buf
= list_entry(q
->active
.next
,
107 struct cx23885_buffer
, queue
);
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
);
117 int cx23885_set_tvnorm(struct cx23885_dev
*dev
, v4l2_std_id norm
)
119 struct v4l2_subdev_format format
= {
120 .which
= V4L2_SUBDEV_FORMAT_ACTIVE
,
121 .format
.code
= MEDIA_BUS_FMT_FIXED
,
124 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
127 v4l2_norm_to_name(norm
));
129 if (dev
->tvnorm
== norm
)
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
))
140 dev
->height
= norm_maxh(norm
);
141 dev
->field
= V4L2_FIELD_INTERLACED
;
143 call_all(dev
, video
, s_std
, norm
);
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
);
153 static struct video_device
*cx23885_vdev_init(struct cx23885_dev
*dev
,
155 struct video_device
*template,
158 struct video_device
*vfd
;
159 dprintk(1, "%s()\n", __func__
);
161 vfd
= video_device_alloc();
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
);
174 int cx23885_flatiron_write(struct cx23885_dev
*dev
, u8 reg
, u8 data
)
176 /* 8 bit registers, 8 bit values */
177 u8 buf
[] = { reg
, data
};
179 struct i2c_msg msg
= { .addr
= 0x98 >> 1,
180 .flags
= 0, .buf
= buf
, .len
= 2 };
182 return i2c_transfer(&dev
->i2c_bus
[2].i2c_adap
, &msg
, 1);
185 u8
cx23885_flatiron_read(struct cx23885_dev
*dev
, u8 reg
)
187 /* 8 bit registers, 8 bit values */
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 }
197 ret
= i2c_transfer(&dev
->i2c_bus
[2].i2c_adap
, &msg
[0], 2);
199 pr_err("%s() error\n", __func__
);
204 static void cx23885_flatiron_dump(struct cx23885_dev
*dev
)
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
));
214 static int cx23885_flatiron_mux(struct cx23885_dev
*dev
, int input
)
217 dprintk(1, "%s(input = %d)\n", __func__
, input
);
220 val
= cx23885_flatiron_read(dev
, CH_PWR_CTRL1
) & ~FLD_CH_SEL
;
222 val
= cx23885_flatiron_read(dev
, CH_PWR_CTRL1
) | FLD_CH_SEL
;
226 val
|= 0x20; /* Enable clock to delta-sigma and dec filter */
228 cx23885_flatiron_write(dev
, CH_PWR_CTRL1
, val
);
231 cx23885_flatiron_write(dev
, CH_PWR_CTRL2
, 0);
234 cx23885_flatiron_dump(dev
);
239 static int cx23885_video_mux(struct cx23885_dev
*dev
, unsigned int input
)
241 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
243 input
, INPUT(input
)->vmux
,
244 INPUT(input
)->gpio0
, INPUT(input
)->gpio1
,
245 INPUT(input
)->gpio2
, INPUT(input
)->gpio3
);
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
);
256 /* Tell the internal A/V decoder */
257 v4l2_subdev_call(dev
->sd_cx25840
, video
, s_routing
,
258 INPUT(input
)->vmux
, 0, 0);
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 (dev
->board
== CX23885_BOARD_AVERMEDIA_CE310B
)) {
273 /* Configure audio routing */
274 v4l2_subdev_call(dev
->sd_cx25840
, audio
, s_routing
,
275 INPUT(input
)->amux
, 0, 0);
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);
286 static int cx23885_audio_mux(struct cx23885_dev
*dev
, unsigned int input
)
288 dprintk(1, "%s(input=%d)\n", __func__
, input
);
290 /* The baseband video core of the cx23885 has two audio inputs.
291 * LR1 and LR2. In almost every single case so far only HVR1xxx
292 * cards we've only ever supported LR1. Time to support LR2,
293 * which is available via the optional white breakout header on
295 * We'll use a could of existing enums in the card struct to allow
296 * devs to specify which baseband input they need, or just default
297 * to what we've always used.
299 if (INPUT(input
)->amux
== CX25840_AUDIO7
)
300 cx23885_flatiron_mux(dev
, 1);
301 else if (INPUT(input
)->amux
== CX25840_AUDIO6
)
302 cx23885_flatiron_mux(dev
, 2);
304 /* Not specifically defined, assume the default. */
305 cx23885_flatiron_mux(dev
, 1);
311 /* ------------------------------------------------------------------ */
312 static int cx23885_start_video_dma(struct cx23885_dev
*dev
,
313 struct cx23885_dmaqueue
*q
,
314 struct cx23885_buffer
*buf
)
316 dprintk(1, "%s()\n", __func__
);
318 /* Stop the dma/fifo before we tamper with it's risc programs */
319 cx_clear(VID_A_DMA_CTL
, 0x11);
321 /* setup fifo + format */
322 cx23885_sram_channel_setup(dev
, &dev
->sram_channels
[SRAM_CH01
],
323 buf
->bpl
, buf
->risc
.dma
);
326 cx_write(VID_A_GPCNT_CTL
, 3);
330 cx23885_irq_add_enable(dev
, 0x01);
331 cx_set(VID_A_INT_MSK
, 0x000011);
334 cx_set(DEV_CNTRL2
, (1<<5));
335 cx_set(VID_A_DMA_CTL
, 0x11); /* FIFO and RISC enable */
340 static int queue_setup(struct vb2_queue
*q
,
341 unsigned int *num_buffers
, unsigned int *num_planes
,
342 unsigned int sizes
[], struct device
*alloc_devs
[])
344 struct cx23885_dev
*dev
= q
->drv_priv
;
347 sizes
[0] = (dev
->fmt
->depth
* dev
->width
* dev
->height
) >> 3;
351 static int buffer_prepare(struct vb2_buffer
*vb
)
353 struct vb2_v4l2_buffer
*vbuf
= to_vb2_v4l2_buffer(vb
);
354 struct cx23885_dev
*dev
= vb
->vb2_queue
->drv_priv
;
355 struct cx23885_buffer
*buf
=
356 container_of(vbuf
, struct cx23885_buffer
, vb
);
357 u32 line0_offset
, line1_offset
;
358 struct sg_table
*sgt
= vb2_dma_sg_plane_desc(vb
, 0);
361 buf
->bpl
= (dev
->width
* dev
->fmt
->depth
) >> 3;
363 if (vb2_plane_size(vb
, 0) < dev
->height
* buf
->bpl
)
365 vb2_set_plane_payload(vb
, 0, dev
->height
* buf
->bpl
);
367 switch (dev
->field
) {
369 cx23885_risc_buffer(dev
->pci
, &buf
->risc
,
371 buf
->bpl
, 0, dev
->height
);
373 case V4L2_FIELD_BOTTOM
:
374 cx23885_risc_buffer(dev
->pci
, &buf
->risc
,
376 buf
->bpl
, 0, dev
->height
);
378 case V4L2_FIELD_INTERLACED
:
379 if (dev
->tvnorm
& V4L2_STD_525_60
)
385 if (cx23885_boards
[dev
->board
].force_bff
)
386 /* PAL / SECAM OR 888 in NTSC MODE */
390 /* cx25840 transmits NTSC bottom field first */
391 dprintk(1, "%s() Creating TFF/NTSC risc\n",
393 line0_offset
= buf
->bpl
;
396 /* All other formats are top field first */
397 dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
400 line1_offset
= buf
->bpl
;
402 cx23885_risc_buffer(dev
->pci
, &buf
->risc
,
403 sgt
->sgl
, line0_offset
,
408 case V4L2_FIELD_SEQ_TB
:
409 cx23885_risc_buffer(dev
->pci
, &buf
->risc
,
411 0, buf
->bpl
* (dev
->height
>> 1),
415 case V4L2_FIELD_SEQ_BT
:
416 cx23885_risc_buffer(dev
->pci
, &buf
->risc
,
418 buf
->bpl
* (dev
->height
>> 1), 0,
425 dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
426 buf
, buf
->vb
.vb2_buf
.index
,
427 dev
->width
, dev
->height
, dev
->fmt
->depth
, dev
->fmt
->name
,
428 (unsigned long)buf
->risc
.dma
);
432 static void buffer_finish(struct vb2_buffer
*vb
)
434 struct vb2_v4l2_buffer
*vbuf
= to_vb2_v4l2_buffer(vb
);
435 struct cx23885_buffer
*buf
= container_of(vbuf
,
436 struct cx23885_buffer
, vb
);
438 cx23885_free_buffer(vb
->vb2_queue
->drv_priv
, buf
);
442 * The risc program for each buffer works as follows: it starts with a simple
443 * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
444 * buffer follows and at the end we have a JUMP back to the start + 12 (skipping
447 * This is the risc program of the first buffer to be queued if the active list
448 * is empty and it just keeps DMAing this buffer without generating any
451 * If a new buffer is added then the initial JUMP in the code for that buffer
452 * will generate an interrupt which signals that the previous buffer has been
453 * DMAed successfully and that it can be returned to userspace.
455 * It also sets the final jump of the previous buffer to the start of the new
456 * buffer, thus chaining the new buffer into the DMA chain. This is a single
457 * atomic u32 write, so there is no race condition.
459 * The end-result of all this that you only get an interrupt when a buffer
460 * is ready, so the control flow is very easy.
462 static void buffer_queue(struct vb2_buffer
*vb
)
464 struct vb2_v4l2_buffer
*vbuf
= to_vb2_v4l2_buffer(vb
);
465 struct cx23885_dev
*dev
= vb
->vb2_queue
->drv_priv
;
466 struct cx23885_buffer
*buf
= container_of(vbuf
,
467 struct cx23885_buffer
, vb
);
468 struct cx23885_buffer
*prev
;
469 struct cx23885_dmaqueue
*q
= &dev
->vidq
;
472 /* add jump to start */
473 buf
->risc
.cpu
[1] = cpu_to_le32(buf
->risc
.dma
+ 12);
474 buf
->risc
.jmp
[0] = cpu_to_le32(RISC_JUMP
| RISC_CNT_INC
);
475 buf
->risc
.jmp
[1] = cpu_to_le32(buf
->risc
.dma
+ 12);
476 buf
->risc
.jmp
[2] = cpu_to_le32(0); /* bits 63-32 */
478 spin_lock_irqsave(&dev
->slock
, flags
);
479 if (list_empty(&q
->active
)) {
480 list_add_tail(&buf
->queue
, &q
->active
);
481 dprintk(2, "[%p/%d] buffer_queue - first active\n",
482 buf
, buf
->vb
.vb2_buf
.index
);
484 buf
->risc
.cpu
[0] |= cpu_to_le32(RISC_IRQ1
);
485 prev
= list_entry(q
->active
.prev
, struct cx23885_buffer
,
487 list_add_tail(&buf
->queue
, &q
->active
);
488 prev
->risc
.jmp
[1] = cpu_to_le32(buf
->risc
.dma
);
489 dprintk(2, "[%p/%d] buffer_queue - append to active\n",
490 buf
, buf
->vb
.vb2_buf
.index
);
492 spin_unlock_irqrestore(&dev
->slock
, flags
);
495 static int cx23885_start_streaming(struct vb2_queue
*q
, unsigned int count
)
497 struct cx23885_dev
*dev
= q
->drv_priv
;
498 struct cx23885_dmaqueue
*dmaq
= &dev
->vidq
;
499 struct cx23885_buffer
*buf
= list_entry(dmaq
->active
.next
,
500 struct cx23885_buffer
, queue
);
502 cx23885_start_video_dma(dev
, dmaq
, buf
);
506 static void cx23885_stop_streaming(struct vb2_queue
*q
)
508 struct cx23885_dev
*dev
= q
->drv_priv
;
509 struct cx23885_dmaqueue
*dmaq
= &dev
->vidq
;
512 cx_clear(VID_A_DMA_CTL
, 0x11);
513 spin_lock_irqsave(&dev
->slock
, flags
);
514 while (!list_empty(&dmaq
->active
)) {
515 struct cx23885_buffer
*buf
= list_entry(dmaq
->active
.next
,
516 struct cx23885_buffer
, queue
);
518 list_del(&buf
->queue
);
519 vb2_buffer_done(&buf
->vb
.vb2_buf
, VB2_BUF_STATE_ERROR
);
521 spin_unlock_irqrestore(&dev
->slock
, flags
);
524 static const struct vb2_ops cx23885_video_qops
= {
525 .queue_setup
= queue_setup
,
526 .buf_prepare
= buffer_prepare
,
527 .buf_finish
= buffer_finish
,
528 .buf_queue
= buffer_queue
,
529 .wait_prepare
= vb2_ops_wait_prepare
,
530 .wait_finish
= vb2_ops_wait_finish
,
531 .start_streaming
= cx23885_start_streaming
,
532 .stop_streaming
= cx23885_stop_streaming
,
535 /* ------------------------------------------------------------------ */
538 static int vidioc_g_fmt_vid_cap(struct file
*file
, void *priv
,
539 struct v4l2_format
*f
)
541 struct cx23885_dev
*dev
= video_drvdata(file
);
543 f
->fmt
.pix
.width
= dev
->width
;
544 f
->fmt
.pix
.height
= dev
->height
;
545 f
->fmt
.pix
.field
= dev
->field
;
546 f
->fmt
.pix
.pixelformat
= dev
->fmt
->fourcc
;
547 f
->fmt
.pix
.bytesperline
=
548 (f
->fmt
.pix
.width
* dev
->fmt
->depth
) >> 3;
549 f
->fmt
.pix
.sizeimage
=
550 f
->fmt
.pix
.height
* f
->fmt
.pix
.bytesperline
;
551 f
->fmt
.pix
.colorspace
= V4L2_COLORSPACE_SMPTE170M
;
556 static int vidioc_try_fmt_vid_cap(struct file
*file
, void *priv
,
557 struct v4l2_format
*f
)
559 struct cx23885_dev
*dev
= video_drvdata(file
);
560 struct cx23885_fmt
*fmt
;
561 enum v4l2_field field
;
562 unsigned int maxw
, maxh
;
564 fmt
= format_by_fourcc(f
->fmt
.pix
.pixelformat
);
568 field
= f
->fmt
.pix
.field
;
570 maxh
= norm_maxh(dev
->tvnorm
);
572 if (V4L2_FIELD_ANY
== field
) {
573 field
= (f
->fmt
.pix
.height
> maxh
/2)
574 ? V4L2_FIELD_INTERLACED
580 case V4L2_FIELD_BOTTOM
:
583 case V4L2_FIELD_INTERLACED
:
584 case V4L2_FIELD_SEQ_TB
:
585 case V4L2_FIELD_SEQ_BT
:
588 field
= V4L2_FIELD_INTERLACED
;
592 f
->fmt
.pix
.field
= field
;
593 v4l_bound_align_image(&f
->fmt
.pix
.width
, 48, maxw
, 2,
594 &f
->fmt
.pix
.height
, 32, maxh
, 0, 0);
595 f
->fmt
.pix
.bytesperline
=
596 (f
->fmt
.pix
.width
* fmt
->depth
) >> 3;
597 f
->fmt
.pix
.sizeimage
=
598 f
->fmt
.pix
.height
* f
->fmt
.pix
.bytesperline
;
599 f
->fmt
.pix
.colorspace
= V4L2_COLORSPACE_SMPTE170M
;
604 static int vidioc_s_fmt_vid_cap(struct file
*file
, void *priv
,
605 struct v4l2_format
*f
)
607 struct cx23885_dev
*dev
= video_drvdata(file
);
608 struct v4l2_subdev_format format
= {
609 .which
= V4L2_SUBDEV_FORMAT_ACTIVE
,
613 dprintk(2, "%s()\n", __func__
);
614 err
= vidioc_try_fmt_vid_cap(file
, priv
, f
);
619 if (vb2_is_busy(&dev
->vb2_vidq
) || vb2_is_busy(&dev
->vb2_vbiq
) ||
620 vb2_is_busy(&dev
->vb2_mpegq
))
623 dev
->fmt
= format_by_fourcc(f
->fmt
.pix
.pixelformat
);
624 dev
->width
= f
->fmt
.pix
.width
;
625 dev
->height
= f
->fmt
.pix
.height
;
626 dev
->field
= f
->fmt
.pix
.field
;
627 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__
,
628 dev
->width
, dev
->height
, dev
->field
);
629 v4l2_fill_mbus_format(&format
.format
, &f
->fmt
.pix
, MEDIA_BUS_FMT_FIXED
);
630 call_all(dev
, pad
, set_fmt
, NULL
, &format
);
631 v4l2_fill_pix_format(&f
->fmt
.pix
, &format
.format
);
632 /* set_fmt overwrites f->fmt.pix.field, restore it */
633 f
->fmt
.pix
.field
= dev
->field
;
637 static int vidioc_querycap(struct file
*file
, void *priv
,
638 struct v4l2_capability
*cap
)
640 struct cx23885_dev
*dev
= video_drvdata(file
);
641 struct video_device
*vdev
= video_devdata(file
);
643 strcpy(cap
->driver
, "cx23885");
644 strlcpy(cap
->card
, cx23885_boards
[dev
->board
].name
,
646 sprintf(cap
->bus_info
, "PCIe:%s", pci_name(dev
->pci
));
647 cap
->device_caps
= V4L2_CAP_READWRITE
| V4L2_CAP_STREAMING
| V4L2_CAP_AUDIO
;
648 if (dev
->tuner_type
!= TUNER_ABSENT
)
649 cap
->device_caps
|= V4L2_CAP_TUNER
;
650 if (vdev
->vfl_type
== VFL_TYPE_VBI
)
651 cap
->device_caps
|= V4L2_CAP_VBI_CAPTURE
;
653 cap
->device_caps
|= V4L2_CAP_VIDEO_CAPTURE
;
654 cap
->capabilities
= cap
->device_caps
| V4L2_CAP_VBI_CAPTURE
|
655 V4L2_CAP_VIDEO_CAPTURE
| V4L2_CAP_DEVICE_CAPS
;
659 static int vidioc_enum_fmt_vid_cap(struct file
*file
, void *priv
,
660 struct v4l2_fmtdesc
*f
)
662 if (unlikely(f
->index
>= ARRAY_SIZE(formats
)))
665 strlcpy(f
->description
, formats
[f
->index
].name
,
666 sizeof(f
->description
));
667 f
->pixelformat
= formats
[f
->index
].fourcc
;
672 static int vidioc_cropcap(struct file
*file
, void *priv
,
673 struct v4l2_cropcap
*cc
)
675 struct cx23885_dev
*dev
= video_drvdata(file
);
676 bool is_50hz
= dev
->tvnorm
& V4L2_STD_625_50
;
678 if (cc
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
683 cc
->bounds
.width
= 720;
684 cc
->bounds
.height
= norm_maxh(dev
->tvnorm
);
685 cc
->defrect
= cc
->bounds
;
686 cc
->pixelaspect
.numerator
= is_50hz
? 54 : 11;
687 cc
->pixelaspect
.denominator
= is_50hz
? 59 : 10;
692 static int vidioc_g_std(struct file
*file
, void *priv
, v4l2_std_id
*id
)
694 struct cx23885_dev
*dev
= video_drvdata(file
);
695 dprintk(1, "%s()\n", __func__
);
701 static int vidioc_s_std(struct file
*file
, void *priv
, v4l2_std_id tvnorms
)
703 struct cx23885_dev
*dev
= video_drvdata(file
);
704 dprintk(1, "%s()\n", __func__
);
706 return cx23885_set_tvnorm(dev
, tvnorms
);
709 int cx23885_enum_input(struct cx23885_dev
*dev
, struct v4l2_input
*i
)
711 static const char *iname
[] = {
712 [CX23885_VMUX_COMPOSITE1
] = "Composite1",
713 [CX23885_VMUX_COMPOSITE2
] = "Composite2",
714 [CX23885_VMUX_COMPOSITE3
] = "Composite3",
715 [CX23885_VMUX_COMPOSITE4
] = "Composite4",
716 [CX23885_VMUX_SVIDEO
] = "S-Video",
717 [CX23885_VMUX_COMPONENT
] = "Component",
718 [CX23885_VMUX_TELEVISION
] = "Television",
719 [CX23885_VMUX_CABLE
] = "Cable TV",
720 [CX23885_VMUX_DVB
] = "DVB",
721 [CX23885_VMUX_DEBUG
] = "for debug only",
724 dprintk(1, "%s()\n", __func__
);
727 if (n
>= MAX_CX23885_INPUT
)
730 if (0 == INPUT(n
)->type
)
734 i
->type
= V4L2_INPUT_TYPE_CAMERA
;
735 strcpy(i
->name
, iname
[INPUT(n
)->type
]);
736 i
->std
= CX23885_NORMS
;
737 if ((CX23885_VMUX_TELEVISION
== INPUT(n
)->type
) ||
738 (CX23885_VMUX_CABLE
== INPUT(n
)->type
)) {
739 i
->type
= V4L2_INPUT_TYPE_TUNER
;
742 /* Two selectable audio inputs for non-tv inputs */
746 if (dev
->input
== n
) {
747 /* enum'd input matches our configured input.
748 * Ask the video decoder to process the call
749 * and give it an oppertunity to update the
752 call_all(dev
, video
, g_input_status
, &i
->status
);
758 static int vidioc_enum_input(struct file
*file
, void *priv
,
759 struct v4l2_input
*i
)
761 struct cx23885_dev
*dev
= video_drvdata(file
);
762 dprintk(1, "%s()\n", __func__
);
763 return cx23885_enum_input(dev
, i
);
766 int cx23885_get_input(struct file
*file
, void *priv
, unsigned int *i
)
768 struct cx23885_dev
*dev
= video_drvdata(file
);
771 dprintk(1, "%s() returns %d\n", __func__
, *i
);
775 static int vidioc_g_input(struct file
*file
, void *priv
, unsigned int *i
)
777 return cx23885_get_input(file
, priv
, i
);
780 int cx23885_set_input(struct file
*file
, void *priv
, unsigned int i
)
782 struct cx23885_dev
*dev
= video_drvdata(file
);
784 dprintk(1, "%s(%d)\n", __func__
, i
);
786 if (i
>= MAX_CX23885_INPUT
) {
787 dprintk(1, "%s() -EINVAL\n", __func__
);
791 if (INPUT(i
)->type
== 0)
794 cx23885_video_mux(dev
, i
);
796 /* By default establish the default audio input for the card also */
797 /* Caller is free to use VIDIOC_S_AUDIO to override afterwards */
798 cx23885_audio_mux(dev
, i
);
802 static int vidioc_s_input(struct file
*file
, void *priv
, unsigned int i
)
804 return cx23885_set_input(file
, priv
, i
);
807 static int vidioc_log_status(struct file
*file
, void *priv
)
809 struct cx23885_dev
*dev
= video_drvdata(file
);
811 call_all(dev
, core
, log_status
);
815 static int cx23885_query_audinput(struct file
*file
, void *priv
,
816 struct v4l2_audio
*i
)
818 static const char *iname
[] = {
819 [0] = "Baseband L/R 1",
820 [1] = "Baseband L/R 2",
824 dprintk(1, "%s()\n", __func__
);
830 memset(i
, 0, sizeof(*i
));
832 strcpy(i
->name
, iname
[n
]);
833 i
->capability
= V4L2_AUDCAP_STEREO
;
838 static int vidioc_enum_audinput(struct file
*file
, void *priv
,
839 struct v4l2_audio
*i
)
841 return cx23885_query_audinput(file
, priv
, i
);
844 static int vidioc_g_audinput(struct file
*file
, void *priv
,
845 struct v4l2_audio
*i
)
847 struct cx23885_dev
*dev
= video_drvdata(file
);
849 if ((CX23885_VMUX_TELEVISION
== INPUT(dev
->input
)->type
) ||
850 (CX23885_VMUX_CABLE
== INPUT(dev
->input
)->type
))
853 i
->index
= dev
->audinput
;
854 dprintk(1, "%s(input=%d)\n", __func__
, i
->index
);
856 return cx23885_query_audinput(file
, priv
, i
);
859 static int vidioc_s_audinput(struct file
*file
, void *priv
,
860 const struct v4l2_audio
*i
)
862 struct cx23885_dev
*dev
= video_drvdata(file
);
864 if ((CX23885_VMUX_TELEVISION
== INPUT(dev
->input
)->type
) ||
865 (CX23885_VMUX_CABLE
== INPUT(dev
->input
)->type
)) {
866 return i
->index
!= 2 ? -EINVAL
: 0;
871 dprintk(1, "%s(%d)\n", __func__
, i
->index
);
873 dev
->audinput
= i
->index
;
875 /* Skip the audio defaults from the cards struct, caller wants
876 * directly touch the audio mux hardware. */
877 cx23885_flatiron_mux(dev
, dev
->audinput
+ 1);
881 static int vidioc_g_tuner(struct file
*file
, void *priv
,
882 struct v4l2_tuner
*t
)
884 struct cx23885_dev
*dev
= video_drvdata(file
);
886 if (dev
->tuner_type
== TUNER_ABSENT
)
891 strcpy(t
->name
, "Television");
893 call_all(dev
, tuner
, g_tuner
, t
);
897 static int vidioc_s_tuner(struct file
*file
, void *priv
,
898 const struct v4l2_tuner
*t
)
900 struct cx23885_dev
*dev
= video_drvdata(file
);
902 if (dev
->tuner_type
== TUNER_ABSENT
)
906 /* Update the A/V core */
907 call_all(dev
, tuner
, s_tuner
, t
);
912 static int vidioc_g_frequency(struct file
*file
, void *priv
,
913 struct v4l2_frequency
*f
)
915 struct cx23885_dev
*dev
= video_drvdata(file
);
917 if (dev
->tuner_type
== TUNER_ABSENT
)
920 f
->type
= V4L2_TUNER_ANALOG_TV
;
921 f
->frequency
= dev
->freq
;
923 call_all(dev
, tuner
, g_frequency
, f
);
928 static int cx23885_set_freq(struct cx23885_dev
*dev
, const struct v4l2_frequency
*f
)
930 struct v4l2_ctrl
*mute
;
931 int old_mute_val
= 1;
933 if (dev
->tuner_type
== TUNER_ABSENT
)
935 if (unlikely(f
->tuner
!= 0))
938 dev
->freq
= f
->frequency
;
940 /* I need to mute audio here */
941 mute
= v4l2_ctrl_find(&dev
->ctrl_handler
, V4L2_CID_AUDIO_MUTE
);
943 old_mute_val
= v4l2_ctrl_g_ctrl(mute
);
945 v4l2_ctrl_s_ctrl(mute
, 1);
948 call_all(dev
, tuner
, s_frequency
, f
);
950 /* When changing channels it is required to reset TVAUDIO */
953 /* I need to unmute audio here */
954 if (old_mute_val
== 0)
955 v4l2_ctrl_s_ctrl(mute
, old_mute_val
);
960 static int cx23885_set_freq_via_ops(struct cx23885_dev
*dev
,
961 const struct v4l2_frequency
*f
)
963 struct v4l2_ctrl
*mute
;
964 int old_mute_val
= 1;
965 struct vb2_dvb_frontend
*vfe
;
966 struct dvb_frontend
*fe
;
968 struct analog_parameters params
= {
969 .mode
= V4L2_TUNER_ANALOG_TV
,
970 .audmode
= V4L2_TUNER_MODE_STEREO
,
972 .frequency
= f
->frequency
975 dev
->freq
= f
->frequency
;
977 /* I need to mute audio here */
978 mute
= v4l2_ctrl_find(&dev
->ctrl_handler
, V4L2_CID_AUDIO_MUTE
);
980 old_mute_val
= v4l2_ctrl_g_ctrl(mute
);
982 v4l2_ctrl_s_ctrl(mute
, 1);
986 dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__
,
987 params
.frequency
, f
->tuner
, params
.std
);
989 vfe
= vb2_dvb_get_frontend(&dev
->ts2
.frontends
, 1);
994 fe
= vfe
->dvb
.frontend
;
996 if ((dev
->board
== CX23885_BOARD_HAUPPAUGE_HVR1850
) ||
997 (dev
->board
== CX23885_BOARD_HAUPPAUGE_HVR1255
) ||
998 (dev
->board
== CX23885_BOARD_HAUPPAUGE_HVR1255_22111
) ||
999 (dev
->board
== CX23885_BOARD_HAUPPAUGE_HVR1265_K4
))
1000 fe
= &dev
->ts1
.analog_fe
;
1002 if (fe
&& fe
->ops
.tuner_ops
.set_analog_params
) {
1003 call_all(dev
, video
, s_std
, dev
->tvnorm
);
1004 fe
->ops
.tuner_ops
.set_analog_params(fe
, ¶ms
);
1007 pr_err("%s() No analog tuner, aborting\n", __func__
);
1009 /* When changing channels it is required to reset TVAUDIO */
1012 /* I need to unmute audio here */
1013 if (old_mute_val
== 0)
1014 v4l2_ctrl_s_ctrl(mute
, old_mute_val
);
1019 int cx23885_set_frequency(struct file
*file
, void *priv
,
1020 const struct v4l2_frequency
*f
)
1022 struct cx23885_dev
*dev
= video_drvdata(file
);
1025 switch (dev
->board
) {
1026 case CX23885_BOARD_HAUPPAUGE_HVR1255
:
1027 case CX23885_BOARD_HAUPPAUGE_HVR1255_22111
:
1028 case CX23885_BOARD_HAUPPAUGE_HVR1265_K4
:
1029 case CX23885_BOARD_HAUPPAUGE_HVR1850
:
1030 ret
= cx23885_set_freq_via_ops(dev
, f
);
1033 ret
= cx23885_set_freq(dev
, f
);
1039 static int vidioc_s_frequency(struct file
*file
, void *priv
,
1040 const struct v4l2_frequency
*f
)
1042 return cx23885_set_frequency(file
, priv
, f
);
1045 /* ----------------------------------------------------------- */
1047 int cx23885_video_irq(struct cx23885_dev
*dev
, u32 status
)
1052 mask
= cx_read(VID_A_INT_MSK
);
1053 if (0 == (status
& mask
))
1056 cx_write(VID_A_INT_STAT
, status
);
1058 /* risc op code error, fifo overflow or line sync detection error */
1059 if ((status
& VID_BC_MSK_OPC_ERR
) ||
1060 (status
& VID_BC_MSK_SYNC
) ||
1061 (status
& VID_BC_MSK_OF
)) {
1063 if (status
& VID_BC_MSK_OPC_ERR
) {
1064 dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
1065 VID_BC_MSK_OPC_ERR
);
1066 pr_warn("%s: video risc op code error\n",
1068 cx23885_sram_channel_dump(dev
,
1069 &dev
->sram_channels
[SRAM_CH01
]);
1072 if (status
& VID_BC_MSK_SYNC
)
1073 dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) video lines miss-match\n",
1076 if (status
& VID_BC_MSK_OF
)
1077 dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n",
1083 if (status
& VID_BC_MSK_RISCI1
) {
1084 spin_lock(&dev
->slock
);
1085 count
= cx_read(VID_A_GPCNT
);
1086 cx23885_video_wakeup(dev
, &dev
->vidq
, count
);
1087 spin_unlock(&dev
->slock
);
1091 /* Allow the VBI framework to process it's payload */
1092 handled
+= cx23885_vbi_irq(dev
, status
);
1097 /* ----------------------------------------------------------- */
1098 /* exported stuff */
1100 static const struct v4l2_file_operations video_fops
= {
1101 .owner
= THIS_MODULE
,
1102 .open
= v4l2_fh_open
,
1103 .release
= vb2_fop_release
,
1104 .read
= vb2_fop_read
,
1105 .poll
= vb2_fop_poll
,
1106 .unlocked_ioctl
= video_ioctl2
,
1107 .mmap
= vb2_fop_mmap
,
1110 static const struct v4l2_ioctl_ops video_ioctl_ops
= {
1111 .vidioc_querycap
= vidioc_querycap
,
1112 .vidioc_enum_fmt_vid_cap
= vidioc_enum_fmt_vid_cap
,
1113 .vidioc_g_fmt_vid_cap
= vidioc_g_fmt_vid_cap
,
1114 .vidioc_try_fmt_vid_cap
= vidioc_try_fmt_vid_cap
,
1115 .vidioc_s_fmt_vid_cap
= vidioc_s_fmt_vid_cap
,
1116 .vidioc_g_fmt_vbi_cap
= cx23885_vbi_fmt
,
1117 .vidioc_try_fmt_vbi_cap
= cx23885_vbi_fmt
,
1118 .vidioc_s_fmt_vbi_cap
= cx23885_vbi_fmt
,
1119 .vidioc_reqbufs
= vb2_ioctl_reqbufs
,
1120 .vidioc_prepare_buf
= vb2_ioctl_prepare_buf
,
1121 .vidioc_querybuf
= vb2_ioctl_querybuf
,
1122 .vidioc_qbuf
= vb2_ioctl_qbuf
,
1123 .vidioc_dqbuf
= vb2_ioctl_dqbuf
,
1124 .vidioc_streamon
= vb2_ioctl_streamon
,
1125 .vidioc_streamoff
= vb2_ioctl_streamoff
,
1126 .vidioc_cropcap
= vidioc_cropcap
,
1127 .vidioc_s_std
= vidioc_s_std
,
1128 .vidioc_g_std
= vidioc_g_std
,
1129 .vidioc_enum_input
= vidioc_enum_input
,
1130 .vidioc_g_input
= vidioc_g_input
,
1131 .vidioc_s_input
= vidioc_s_input
,
1132 .vidioc_log_status
= vidioc_log_status
,
1133 .vidioc_g_tuner
= vidioc_g_tuner
,
1134 .vidioc_s_tuner
= vidioc_s_tuner
,
1135 .vidioc_g_frequency
= vidioc_g_frequency
,
1136 .vidioc_s_frequency
= vidioc_s_frequency
,
1137 #ifdef CONFIG_VIDEO_ADV_DEBUG
1138 .vidioc_g_chip_info
= cx23885_g_chip_info
,
1139 .vidioc_g_register
= cx23885_g_register
,
1140 .vidioc_s_register
= cx23885_s_register
,
1142 .vidioc_enumaudio
= vidioc_enum_audinput
,
1143 .vidioc_g_audio
= vidioc_g_audinput
,
1144 .vidioc_s_audio
= vidioc_s_audinput
,
1145 .vidioc_subscribe_event
= v4l2_ctrl_subscribe_event
,
1146 .vidioc_unsubscribe_event
= v4l2_event_unsubscribe
,
1149 static struct video_device cx23885_vbi_template
;
1150 static struct video_device cx23885_video_template
= {
1151 .name
= "cx23885-video",
1152 .fops
= &video_fops
,
1153 .ioctl_ops
= &video_ioctl_ops
,
1154 .tvnorms
= CX23885_NORMS
,
1157 void cx23885_video_unregister(struct cx23885_dev
*dev
)
1159 dprintk(1, "%s()\n", __func__
);
1160 cx23885_irq_remove(dev
, 0x01);
1163 if (video_is_registered(dev
->vbi_dev
))
1164 video_unregister_device(dev
->vbi_dev
);
1166 video_device_release(dev
->vbi_dev
);
1167 dev
->vbi_dev
= NULL
;
1169 if (dev
->video_dev
) {
1170 if (video_is_registered(dev
->video_dev
))
1171 video_unregister_device(dev
->video_dev
);
1173 video_device_release(dev
->video_dev
);
1174 dev
->video_dev
= NULL
;
1178 cx23885_audio_unregister(dev
);
1181 int cx23885_video_register(struct cx23885_dev
*dev
)
1183 struct vb2_queue
*q
;
1186 dprintk(1, "%s()\n", __func__
);
1188 /* Initialize VBI template */
1189 cx23885_vbi_template
= cx23885_video_template
;
1190 strcpy(cx23885_vbi_template
.name
, "cx23885-vbi");
1192 dev
->tvnorm
= V4L2_STD_NTSC_M
;
1193 dev
->fmt
= format_by_fourcc(V4L2_PIX_FMT_YUYV
);
1194 dev
->field
= V4L2_FIELD_INTERLACED
;
1196 dev
->height
= norm_maxh(dev
->tvnorm
);
1198 /* init video dma queues */
1199 INIT_LIST_HEAD(&dev
->vidq
.active
);
1201 /* init vbi dma queues */
1202 INIT_LIST_HEAD(&dev
->vbiq
.active
);
1204 cx23885_irq_add_enable(dev
, 0x01);
1206 if ((TUNER_ABSENT
!= dev
->tuner_type
) &&
1207 ((dev
->tuner_bus
== 0) || (dev
->tuner_bus
== 1))) {
1208 struct v4l2_subdev
*sd
= NULL
;
1210 if (dev
->tuner_addr
)
1211 sd
= v4l2_i2c_new_subdev(&dev
->v4l2_dev
,
1212 &dev
->i2c_bus
[dev
->tuner_bus
].i2c_adap
,
1213 "tuner", dev
->tuner_addr
, NULL
);
1215 sd
= v4l2_i2c_new_subdev(&dev
->v4l2_dev
,
1216 &dev
->i2c_bus
[dev
->tuner_bus
].i2c_adap
,
1217 "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV
));
1219 struct tuner_setup tun_setup
;
1221 memset(&tun_setup
, 0, sizeof(tun_setup
));
1222 tun_setup
.mode_mask
= T_ANALOG_TV
;
1223 tun_setup
.type
= dev
->tuner_type
;
1224 tun_setup
.addr
= v4l2_i2c_subdev_addr(sd
);
1225 tun_setup
.tuner_callback
= cx23885_tuner_callback
;
1227 v4l2_subdev_call(sd
, tuner
, s_type_addr
, &tun_setup
);
1229 if ((dev
->board
== CX23885_BOARD_LEADTEK_WINFAST_PXTV1200
) ||
1230 (dev
->board
== CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200
)) {
1231 struct xc2028_ctrl ctrl
= {
1232 .fname
= XC2028_DEFAULT_FIRMWARE
,
1235 struct v4l2_priv_tun_config cfg
= {
1236 .tuner
= dev
->tuner_type
,
1239 v4l2_subdev_call(sd
, tuner
, s_config
, &cfg
);
1242 if (dev
->board
== CX23885_BOARD_AVERMEDIA_HC81R
) {
1243 struct xc2028_ctrl ctrl
= {
1244 .fname
= "xc3028L-v36.fw",
1247 struct v4l2_priv_tun_config cfg
= {
1248 .tuner
= dev
->tuner_type
,
1251 v4l2_subdev_call(sd
, tuner
, s_config
, &cfg
);
1256 /* initial device configuration */
1257 mutex_lock(&dev
->lock
);
1258 cx23885_set_tvnorm(dev
, dev
->tvnorm
);
1259 cx23885_video_mux(dev
, 0);
1260 cx23885_audio_mux(dev
, 0);
1261 mutex_unlock(&dev
->lock
);
1264 q
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
1265 q
->io_modes
= VB2_MMAP
| VB2_USERPTR
| VB2_DMABUF
| VB2_READ
;
1266 q
->gfp_flags
= GFP_DMA32
;
1267 q
->min_buffers_needed
= 2;
1269 q
->buf_struct_size
= sizeof(struct cx23885_buffer
);
1270 q
->ops
= &cx23885_video_qops
;
1271 q
->mem_ops
= &vb2_dma_sg_memops
;
1272 q
->timestamp_flags
= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC
;
1273 q
->lock
= &dev
->lock
;
1274 q
->dev
= &dev
->pci
->dev
;
1276 err
= vb2_queue_init(q
);
1281 q
->type
= V4L2_BUF_TYPE_VBI_CAPTURE
;
1282 q
->io_modes
= VB2_MMAP
| VB2_USERPTR
| VB2_DMABUF
| VB2_READ
;
1283 q
->gfp_flags
= GFP_DMA32
;
1284 q
->min_buffers_needed
= 2;
1286 q
->buf_struct_size
= sizeof(struct cx23885_buffer
);
1287 q
->ops
= &cx23885_vbi_qops
;
1288 q
->mem_ops
= &vb2_dma_sg_memops
;
1289 q
->timestamp_flags
= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC
;
1290 q
->lock
= &dev
->lock
;
1291 q
->dev
= &dev
->pci
->dev
;
1293 err
= vb2_queue_init(q
);
1297 /* register Video device */
1298 dev
->video_dev
= cx23885_vdev_init(dev
, dev
->pci
,
1299 &cx23885_video_template
, "video");
1300 dev
->video_dev
->queue
= &dev
->vb2_vidq
;
1301 err
= video_register_device(dev
->video_dev
, VFL_TYPE_GRABBER
,
1304 pr_info("%s: can't register video device\n",
1308 pr_info("%s: registered device %s [v4l2]\n",
1309 dev
->name
, video_device_node_name(dev
->video_dev
));
1311 /* register VBI device */
1312 dev
->vbi_dev
= cx23885_vdev_init(dev
, dev
->pci
,
1313 &cx23885_vbi_template
, "vbi");
1314 dev
->vbi_dev
->queue
= &dev
->vb2_vbiq
;
1315 err
= video_register_device(dev
->vbi_dev
, VFL_TYPE_VBI
,
1318 pr_info("%s: can't register vbi device\n",
1322 pr_info("%s: registered device %s\n",
1323 dev
->name
, video_device_node_name(dev
->vbi_dev
));
1325 /* Register ALSA audio device */
1326 dev
->audio_dev
= cx23885_audio_register(dev
);
1331 cx23885_video_unregister(dev
);