2 cx231xx-video.c - driver for Conexant Cx23100/101/102
3 USB video capture devices
5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
7 Based on cx23885 driver
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/init.h>
26 #include <linux/list.h>
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/bitmap.h>
30 #include <linux/usb.h>
31 #include <linux/i2c.h>
33 #include <linux/mutex.h>
34 #include <linux/slab.h>
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-event.h>
39 #include <media/msp3400.h>
40 #include <media/tuner.h>
42 #include "dvb_frontend.h"
45 #include "cx231xx-vbi.h"
47 #define CX231XX_VERSION "0.0.2"
49 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
50 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
52 #define cx231xx_videodbg(fmt, arg...) do {\
54 printk(KERN_INFO "%s %s :"fmt, \
55 dev->name, __func__ , ##arg); } while (0)
57 static unsigned int isoc_debug;
58 module_param(isoc_debug, int, 0644);
59 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
61 #define cx231xx_isocdbg(fmt, arg...) \
64 printk(KERN_INFO "%s %s :"fmt, \
65 dev->name, __func__ , ##arg); \
69 MODULE_AUTHOR(DRIVER_AUTHOR);
70 MODULE_DESCRIPTION(DRIVER_DESC);
71 MODULE_LICENSE("GPL");
72 MODULE_VERSION(CX231XX_VERSION);
74 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
75 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
76 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
77 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
79 module_param_array(card, int, NULL, 0444);
80 module_param_array(video_nr, int, NULL, 0444);
81 module_param_array(vbi_nr, int, NULL, 0444);
82 module_param_array(radio_nr, int, NULL, 0444);
84 MODULE_PARM_DESC(card, "card type");
85 MODULE_PARM_DESC(video_nr, "video device numbers");
86 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
87 MODULE_PARM_DESC(radio_nr, "radio device numbers");
89 static unsigned int video_debug;
90 module_param(video_debug, int, 0644);
91 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
93 /* supported video standards */
94 static struct cx231xx_fmt format[] = {
96 .name = "16bpp YUY2, 4:2:2, packed",
97 .fourcc = V4L2_PIX_FMT_YUYV,
104 /* ------------------------------------------------------------------
105 Video buffer and parser functions
106 ------------------------------------------------------------------*/
109 * Announces that a buffer were filled and request the next
111 static inline void buffer_filled(struct cx231xx *dev,
112 struct cx231xx_dmaqueue *dma_q,
113 struct cx231xx_buffer *buf)
115 /* Advice that buffer was filled */
116 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
117 buf->vb.state = VIDEOBUF_DONE;
118 buf->vb.field_count++;
119 v4l2_get_timestamp(&buf->vb.ts);
122 dev->video_mode.isoc_ctl.buf = NULL;
124 dev->video_mode.bulk_ctl.buf = NULL;
126 list_del(&buf->vb.queue);
127 wake_up(&buf->vb.done);
130 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
132 char *errmsg = "Unknown";
136 errmsg = "unlinked synchronuously";
139 errmsg = "unlinked asynchronuously";
142 errmsg = "Buffer error (overrun)";
145 errmsg = "Stalled (device not responding)";
148 errmsg = "Babble (bad cable?)";
151 errmsg = "Bit-stuff error (bad cable?)";
154 errmsg = "CRC/Timeout (could be anything)";
157 errmsg = "Device does not respond";
161 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
163 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
164 packet, status, errmsg);
169 * video-buf generic routine to get the next available buffer
171 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
172 struct cx231xx_buffer **buf)
174 struct cx231xx_video_mode *vmode =
175 container_of(dma_q, struct cx231xx_video_mode, vidq);
176 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
180 if (list_empty(&dma_q->active)) {
181 cx231xx_isocdbg("No active queue to serve\n");
183 dev->video_mode.isoc_ctl.buf = NULL;
185 dev->video_mode.bulk_ctl.buf = NULL;
190 /* Get the next buffer */
191 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
193 /* Cleans up buffer - Useful for testing for frame/URB loss */
194 outp = videobuf_to_vmalloc(&(*buf)->vb);
195 memset(outp, 0, (*buf)->vb.size);
198 dev->video_mode.isoc_ctl.buf = *buf;
200 dev->video_mode.bulk_ctl.buf = *buf;
206 * Controls the isoc copy of each urb packet
208 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
210 struct cx231xx_dmaqueue *dma_q = urb->context;
212 unsigned char *p_buffer;
213 u32 bytes_parsed = 0, buffer_size = 0;
219 if (dev->state & DEV_DISCONNECTED)
222 if (urb->status < 0) {
223 print_err_status(dev, -1, urb->status);
224 if (urb->status == -ENOENT)
228 for (i = 0; i < urb->number_of_packets; i++) {
229 int status = urb->iso_frame_desc[i].status;
232 print_err_status(dev, i, status);
233 if (urb->iso_frame_desc[i].status != -EPROTO)
237 if (urb->iso_frame_desc[i].actual_length <= 0) {
238 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
241 if (urb->iso_frame_desc[i].actual_length >
242 dev->video_mode.max_pkt_size) {
243 cx231xx_isocdbg("packet bigger than packet size");
247 /* get buffer pointer and length */
248 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
249 buffer_size = urb->iso_frame_desc[i].actual_length;
252 if (dma_q->is_partial_line) {
253 /* Handle the case of a partial line */
254 sav_eav = dma_q->last_sav;
256 /* Check for a SAV/EAV overlapping
257 the buffer boundary */
259 cx231xx_find_boundary_SAV_EAV(p_buffer,
265 /* Get the first line if we have some portion of an SAV/EAV from
266 the last buffer or a partial line */
268 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
269 sav_eav, /* SAV/EAV */
270 p_buffer + bytes_parsed, /* p_buffer */
271 buffer_size - bytes_parsed);/* buf size */
274 /* Now parse data that is completely in this buffer */
275 /* dma_q->is_partial_line = 0; */
277 while (bytes_parsed < buffer_size) {
280 sav_eav = cx231xx_find_next_SAV_EAV(
281 p_buffer + bytes_parsed, /* p_buffer */
282 buffer_size - bytes_parsed, /* buf size */
283 &bytes_used);/* bytes used to get SAV/EAV */
285 bytes_parsed += bytes_used;
288 if (sav_eav && (bytes_parsed < buffer_size)) {
289 bytes_parsed += cx231xx_get_video_line(dev,
290 dma_q, sav_eav, /* SAV/EAV */
291 p_buffer + bytes_parsed,/* p_buffer */
292 buffer_size - bytes_parsed);/*buf size*/
296 /* Save the last four bytes of the buffer so we can check the
297 buffer boundary condition next time */
298 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
305 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
307 struct cx231xx_dmaqueue *dma_q = urb->context;
309 unsigned char *p_buffer;
310 u32 bytes_parsed = 0, buffer_size = 0;
316 if (dev->state & DEV_DISCONNECTED)
319 if (urb->status < 0) {
320 print_err_status(dev, -1, urb->status);
321 if (urb->status == -ENOENT)
327 /* get buffer pointer and length */
328 p_buffer = urb->transfer_buffer;
329 buffer_size = urb->actual_length;
332 if (dma_q->is_partial_line) {
333 /* Handle the case of a partial line */
334 sav_eav = dma_q->last_sav;
336 /* Check for a SAV/EAV overlapping
337 the buffer boundary */
339 cx231xx_find_boundary_SAV_EAV(p_buffer,
345 /* Get the first line if we have some portion of an SAV/EAV from
346 the last buffer or a partial line */
348 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
349 sav_eav, /* SAV/EAV */
350 p_buffer + bytes_parsed, /* p_buffer */
351 buffer_size - bytes_parsed);/* buf size */
354 /* Now parse data that is completely in this buffer */
355 /* dma_q->is_partial_line = 0; */
357 while (bytes_parsed < buffer_size) {
360 sav_eav = cx231xx_find_next_SAV_EAV(
361 p_buffer + bytes_parsed, /* p_buffer */
362 buffer_size - bytes_parsed, /* buf size */
363 &bytes_used);/* bytes used to get SAV/EAV */
365 bytes_parsed += bytes_used;
368 if (sav_eav && (bytes_parsed < buffer_size)) {
369 bytes_parsed += cx231xx_get_video_line(dev,
370 dma_q, sav_eav, /* SAV/EAV */
371 p_buffer + bytes_parsed,/* p_buffer */
372 buffer_size - bytes_parsed);/*buf size*/
376 /* Save the last four bytes of the buffer so we can check the
377 buffer boundary condition next time */
378 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
386 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
390 u8 boundary_bytes[8];
395 /* Create an array of the last 4 bytes of the last buffer and the first
396 4 bytes of the current buffer. */
398 memcpy(boundary_bytes, partial_buf, 4);
399 memcpy(boundary_bytes + 4, p_buffer, 4);
401 /* Check for the SAV/EAV in the boundary buffer */
402 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
406 /* found a boundary SAV/EAV. Updates the bytes used to reflect
407 only those used in the new buffer */
408 *p_bytes_used = bytes_used - 4;
414 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
420 * Don't search if the buffer size is less than 4. It causes a page
421 * fault since buffer_size - 4 evaluates to a large number in that
424 if (buffer_size < 4) {
425 *p_bytes_used = buffer_size;
429 for (i = 0; i < (buffer_size - 3); i++) {
431 if ((p_buffer[i] == 0xFF) &&
432 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
434 *p_bytes_used = i + 4;
435 sav_eav = p_buffer[i + 3];
440 *p_bytes_used = buffer_size;
444 u32 cx231xx_get_video_line(struct cx231xx *dev,
445 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
446 u8 *p_buffer, u32 buffer_size)
448 u32 bytes_copied = 0;
449 int current_field = -1;
452 case SAV_ACTIVE_VIDEO_FIELD1:
453 /* looking for skipped line which occurred in PAL 720x480 mode.
454 In this case, there will be no active data contained
455 between the SAV and EAV */
456 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
457 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
458 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
459 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
460 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
461 (p_buffer[3] == EAV_VBLANK_FIELD2)))
466 case SAV_ACTIVE_VIDEO_FIELD2:
467 /* looking for skipped line which occurred in PAL 720x480 mode.
468 In this case, there will be no active data contained between
470 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
471 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
472 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
473 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
474 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
475 (p_buffer[3] == EAV_VBLANK_FIELD2)))
481 dma_q->last_sav = sav_eav;
483 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
484 buffer_size, current_field);
489 u32 cx231xx_copy_video_line(struct cx231xx *dev,
490 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
491 u32 length, int field_number)
494 struct cx231xx_buffer *buf;
495 u32 _line_size = dev->width * 2;
497 if (dma_q->current_field != field_number)
498 cx231xx_reset_video_buffer(dev, dma_q);
500 /* get the buffer pointer */
502 buf = dev->video_mode.isoc_ctl.buf;
504 buf = dev->video_mode.bulk_ctl.buf;
506 /* Remember the field number for next time */
507 dma_q->current_field = field_number;
509 bytes_to_copy = dma_q->bytes_left_in_line;
510 if (bytes_to_copy > length)
511 bytes_to_copy = length;
513 if (dma_q->lines_completed >= dma_q->lines_per_field) {
514 dma_q->bytes_left_in_line -= bytes_to_copy;
515 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
520 dma_q->is_partial_line = 1;
522 /* If we don't have a buffer, just return the number of bytes we would
523 have copied if we had a buffer. */
525 dma_q->bytes_left_in_line -= bytes_to_copy;
526 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
528 return bytes_to_copy;
531 /* copy the data to video buffer */
532 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
534 dma_q->pos += bytes_to_copy;
535 dma_q->bytes_left_in_line -= bytes_to_copy;
537 if (dma_q->bytes_left_in_line == 0) {
538 dma_q->bytes_left_in_line = _line_size;
539 dma_q->lines_completed++;
540 dma_q->is_partial_line = 0;
542 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
543 buffer_filled(dev, dma_q, buf);
547 dma_q->lines_completed = 0;
551 return bytes_to_copy;
554 void cx231xx_reset_video_buffer(struct cx231xx *dev,
555 struct cx231xx_dmaqueue *dma_q)
557 struct cx231xx_buffer *buf;
559 /* handle the switch from field 1 to field 2 */
560 if (dma_q->current_field == 1) {
561 if (dma_q->lines_completed >= dma_q->lines_per_field)
562 dma_q->field1_done = 1;
564 dma_q->field1_done = 0;
568 buf = dev->video_mode.isoc_ctl.buf;
570 buf = dev->video_mode.bulk_ctl.buf;
573 /* first try to get the buffer */
574 get_next_buf(dma_q, &buf);
577 dma_q->field1_done = 0;
578 dma_q->current_field = -1;
581 /* reset the counters */
582 dma_q->bytes_left_in_line = dev->width << 1;
583 dma_q->lines_completed = 0;
586 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
587 u8 *p_buffer, u32 bytes_to_copy)
589 u8 *p_out_buffer = NULL;
590 u32 current_line_bytes_copied = 0;
591 struct cx231xx_buffer *buf;
592 u32 _line_size = dev->width << 1;
597 buf = dev->video_mode.isoc_ctl.buf;
599 buf = dev->video_mode.bulk_ctl.buf;
604 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
606 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
608 /* Offset field 2 one line from the top of the buffer */
609 offset = (dma_q->current_field == 1) ? 0 : _line_size;
611 /* Offset for field 2 */
612 startwrite = p_out_buffer + offset;
614 /* lines already completed in the current field */
615 startwrite += (dma_q->lines_completed * _line_size * 2);
617 /* bytes already completed in the current line */
618 startwrite += current_line_bytes_copied;
620 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
621 bytes_to_copy : dma_q->bytes_left_in_line;
623 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
626 /* The below copies the UYVY data straight into video buffer */
627 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
632 void cx231xx_swab(u16 *from, u16 *to, u16 len)
639 for (i = 0; i < len / 2; i++)
640 to[i] = (from[i] << 8) | (from[i] >> 8);
643 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
645 u8 buffer_complete = 0;
647 /* Dual field stream */
648 buffer_complete = ((dma_q->current_field == 2) &&
649 (dma_q->lines_completed >= dma_q->lines_per_field) &&
652 return buffer_complete;
655 /* ------------------------------------------------------------------
657 ------------------------------------------------------------------*/
660 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
662 struct cx231xx_fh *fh = vq->priv_data;
663 struct cx231xx *dev = fh->dev;
665 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
667 *count = CX231XX_DEF_BUF;
669 if (*count < CX231XX_MIN_BUF)
670 *count = CX231XX_MIN_BUF;
675 /* This is called *without* dev->slock held; please keep it that way */
676 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
678 struct cx231xx_fh *fh = vq->priv_data;
679 struct cx231xx *dev = fh->dev;
680 unsigned long flags = 0;
685 /* We used to wait for the buffer to finish here, but this didn't work
686 because, as we were keeping the state as VIDEOBUF_QUEUED,
687 videobuf_queue_cancel marked it as finished for us.
688 (Also, it could wedge forever if the hardware was misconfigured.)
690 This should be safe; by the time we get here, the buffer isn't
691 queued anymore. If we ever start marking the buffers as
692 VIDEOBUF_ACTIVE, it won't be, though.
694 spin_lock_irqsave(&dev->video_mode.slock, flags);
696 if (dev->video_mode.isoc_ctl.buf == buf)
697 dev->video_mode.isoc_ctl.buf = NULL;
699 if (dev->video_mode.bulk_ctl.buf == buf)
700 dev->video_mode.bulk_ctl.buf = NULL;
702 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
704 videobuf_vmalloc_free(&buf->vb);
705 buf->vb.state = VIDEOBUF_NEEDS_INIT;
709 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
710 enum v4l2_field field)
712 struct cx231xx_fh *fh = vq->priv_data;
713 struct cx231xx_buffer *buf =
714 container_of(vb, struct cx231xx_buffer, vb);
715 struct cx231xx *dev = fh->dev;
716 int rc = 0, urb_init = 0;
718 /* The only currently supported format is 16 bits/pixel */
719 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
721 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
724 buf->vb.width = dev->width;
725 buf->vb.height = dev->height;
726 buf->vb.field = field;
728 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
729 rc = videobuf_iolock(vq, &buf->vb, NULL);
735 if (!dev->video_mode.isoc_ctl.num_bufs)
738 if (!dev->video_mode.bulk_ctl.num_bufs)
741 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
742 urb_init, dev->video_mode.max_pkt_size);*/
746 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
748 dev->video_mode.max_pkt_size,
751 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
753 dev->video_mode.max_pkt_size,
759 buf->vb.state = VIDEOBUF_PREPARED;
763 free_buffer(vq, buf);
767 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
769 struct cx231xx_buffer *buf =
770 container_of(vb, struct cx231xx_buffer, vb);
771 struct cx231xx_fh *fh = vq->priv_data;
772 struct cx231xx *dev = fh->dev;
773 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
775 buf->vb.state = VIDEOBUF_QUEUED;
776 list_add_tail(&buf->vb.queue, &vidq->active);
780 static void buffer_release(struct videobuf_queue *vq,
781 struct videobuf_buffer *vb)
783 struct cx231xx_buffer *buf =
784 container_of(vb, struct cx231xx_buffer, vb);
785 struct cx231xx_fh *fh = vq->priv_data;
786 struct cx231xx *dev = (struct cx231xx *)fh->dev;
788 cx231xx_isocdbg("cx231xx: called buffer_release\n");
790 free_buffer(vq, buf);
793 static struct videobuf_queue_ops cx231xx_video_qops = {
794 .buf_setup = buffer_setup,
795 .buf_prepare = buffer_prepare,
796 .buf_queue = buffer_queue,
797 .buf_release = buffer_release,
800 /********************* v4l2 interface **************************************/
802 void video_mux(struct cx231xx *dev, int index)
804 dev->video_input = index;
805 dev->ctl_ainput = INPUT(index)->amux;
807 cx231xx_set_video_input_mux(dev, index);
809 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
811 cx231xx_set_audio_input(dev, dev->ctl_ainput);
813 cx231xx_info("video_mux : %d\n", index);
815 /* do mode control overrides if required */
816 cx231xx_do_mode_ctrl_overrides(dev);
819 /* Usage lock check functions */
820 static int res_get(struct cx231xx_fh *fh)
822 struct cx231xx *dev = fh->dev;
825 /* This instance already has stream_on */
829 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
833 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
834 if (dev->vbi_stream_on)
836 dev->vbi_stream_on = 1;
845 static int res_check(struct cx231xx_fh *fh)
847 return fh->stream_on;
850 static void res_free(struct cx231xx_fh *fh)
852 struct cx231xx *dev = fh->dev;
856 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
858 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
859 dev->vbi_stream_on = 0;
862 static int check_dev(struct cx231xx *dev)
864 if (dev->state & DEV_DISCONNECTED) {
865 cx231xx_errdev("v4l2 ioctl: device not present\n");
871 /* ------------------------------------------------------------------
872 IOCTL vidioc handling
873 ------------------------------------------------------------------*/
875 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
876 struct v4l2_format *f)
878 struct cx231xx_fh *fh = priv;
879 struct cx231xx *dev = fh->dev;
881 f->fmt.pix.width = dev->width;
882 f->fmt.pix.height = dev->height;
883 f->fmt.pix.pixelformat = dev->format->fourcc;
884 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
885 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
886 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
888 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
893 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
897 for (i = 0; i < ARRAY_SIZE(format); i++)
898 if (format[i].fourcc == fourcc)
904 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
905 struct v4l2_format *f)
907 struct cx231xx_fh *fh = priv;
908 struct cx231xx *dev = fh->dev;
909 unsigned int width = f->fmt.pix.width;
910 unsigned int height = f->fmt.pix.height;
911 unsigned int maxw = norm_maxw(dev);
912 unsigned int maxh = norm_maxh(dev);
913 struct cx231xx_fmt *fmt;
915 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
917 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
918 f->fmt.pix.pixelformat);
922 /* width must even because of the YUYV format
923 height must be even because of interlacing */
924 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
926 f->fmt.pix.width = width;
927 f->fmt.pix.height = height;
928 f->fmt.pix.pixelformat = fmt->fourcc;
929 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
930 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
931 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
932 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
937 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
938 struct v4l2_format *f)
940 struct cx231xx_fh *fh = priv;
941 struct cx231xx *dev = fh->dev;
943 struct cx231xx_fmt *fmt;
944 struct v4l2_mbus_framefmt mbus_fmt;
950 vidioc_try_fmt_vid_cap(file, priv, f);
952 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
956 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
957 cx231xx_errdev("%s queue busy\n", __func__);
961 if (dev->stream_on && !fh->stream_on) {
962 cx231xx_errdev("%s device in use by another fh\n", __func__);
966 /* set new image size */
967 dev->width = f->fmt.pix.width;
968 dev->height = f->fmt.pix.height;
971 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
972 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
973 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
978 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
980 struct cx231xx_fh *fh = priv;
981 struct cx231xx *dev = fh->dev;
987 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
989 struct cx231xx_fh *fh = priv;
990 struct cx231xx *dev = fh->dev;
991 struct v4l2_mbus_framefmt mbus_fmt;
998 if (dev->norm == norm)
1001 if (videobuf_queue_is_busy(&fh->vb_vidq))
1006 /* Adjusts width/height, if needed */
1008 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
1010 call_all(dev, core, s_std, dev->norm);
1012 /* We need to reset basic properties in the decoder related to
1013 resolution (since a standard change effects things like the number
1014 of lines in VACT, etc) */
1015 memset(&mbus_fmt, 0, sizeof(mbus_fmt));
1016 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
1017 mbus_fmt.width = dev->width;
1018 mbus_fmt.height = dev->height;
1019 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1021 /* do mode control overrides */
1022 cx231xx_do_mode_ctrl_overrides(dev);
1027 static const char *iname[] = {
1028 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1029 [CX231XX_VMUX_SVIDEO] = "S-Video",
1030 [CX231XX_VMUX_TELEVISION] = "Television",
1031 [CX231XX_VMUX_CABLE] = "Cable TV",
1032 [CX231XX_VMUX_DVB] = "DVB",
1033 [CX231XX_VMUX_DEBUG] = "for debug only",
1036 int cx231xx_enum_input(struct file *file, void *priv,
1037 struct v4l2_input *i)
1039 struct cx231xx_fh *fh = priv;
1040 struct cx231xx *dev = fh->dev;
1042 unsigned int ret, n;
1045 if (n >= MAX_CX231XX_INPUT)
1047 if (0 == INPUT(n)->type)
1051 i->type = V4L2_INPUT_TYPE_CAMERA;
1053 strcpy(i->name, iname[INPUT(n)->type]);
1055 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1056 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1057 i->type = V4L2_INPUT_TYPE_TUNER;
1059 i->std = dev->vdev->tvnorms;
1061 /* If they are asking about the active input, read signal status */
1062 if (n == dev->video_input) {
1063 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1064 GEN_STAT, 2, &gen_stat, 4);
1066 if ((gen_stat & FLD_VPRES) == 0x00)
1067 i->status |= V4L2_IN_ST_NO_SIGNAL;
1068 if ((gen_stat & FLD_HLOCK) == 0x00)
1069 i->status |= V4L2_IN_ST_NO_H_LOCK;
1076 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1078 struct cx231xx_fh *fh = priv;
1079 struct cx231xx *dev = fh->dev;
1081 *i = dev->video_input;
1086 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1088 struct cx231xx_fh *fh = priv;
1089 struct cx231xx *dev = fh->dev;
1093 rc = check_dev(dev);
1097 if (i >= MAX_CX231XX_INPUT)
1099 if (0 == INPUT(i)->type)
1104 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1105 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1106 /* There's a tuner, so reset the standard and put it on the
1107 last known frequency (since it was probably powered down
1109 call_all(dev, core, s_std, dev->norm);
1115 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1117 struct cx231xx_fh *fh = priv;
1118 struct cx231xx *dev = fh->dev;
1121 rc = check_dev(dev);
1128 strcpy(t->name, "Tuner");
1130 t->type = V4L2_TUNER_ANALOG_TV;
1131 t->capability = V4L2_TUNER_CAP_NORM;
1132 t->rangehigh = 0xffffffffUL;
1133 t->signal = 0xffff; /* LOCKED */
1134 call_all(dev, tuner, g_tuner, t);
1139 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1141 struct cx231xx_fh *fh = priv;
1142 struct cx231xx *dev = fh->dev;
1145 rc = check_dev(dev);
1152 call_all(dev, tuner, s_tuner, t);
1157 int cx231xx_g_frequency(struct file *file, void *priv,
1158 struct v4l2_frequency *f)
1160 struct cx231xx_fh *fh = priv;
1161 struct cx231xx *dev = fh->dev;
1166 f->frequency = dev->ctl_freq;
1171 int cx231xx_s_frequency(struct file *file, void *priv,
1172 const struct v4l2_frequency *f)
1174 struct cx231xx_fh *fh = priv;
1175 struct cx231xx *dev = fh->dev;
1176 struct v4l2_frequency new_freq = *f;
1178 u32 if_frequency = 5400000;
1180 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1181 f->frequency, f->type);
1182 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/
1184 rc = check_dev(dev);
1191 /* set pre channel change settings in DIF first */
1192 rc = cx231xx_tuner_pre_channel_change(dev);
1194 call_all(dev, tuner, s_frequency, f);
1195 call_all(dev, tuner, g_frequency, &new_freq);
1196 dev->ctl_freq = new_freq.frequency;
1198 /* set post channel change settings in DIF first */
1199 rc = cx231xx_tuner_post_channel_change(dev);
1201 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1202 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1203 if_frequency = 5400000; /*5.4MHz */
1204 else if (dev->norm & V4L2_STD_B)
1205 if_frequency = 6000000; /*6.0MHz */
1206 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1207 if_frequency = 6900000; /*6.9MHz */
1208 else if (dev->norm & V4L2_STD_GH)
1209 if_frequency = 7100000; /*7.1MHz */
1210 else if (dev->norm & V4L2_STD_PAL_I)
1211 if_frequency = 7250000; /*7.25MHz */
1212 else if (dev->norm & V4L2_STD_SECAM_L)
1213 if_frequency = 6900000; /*6.9MHz */
1214 else if (dev->norm & V4L2_STD_SECAM_LC)
1215 if_frequency = 1250000; /*1.25MHz */
1217 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1218 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1220 update_HH_register_after_set_DIF(dev);
1223 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1228 #ifdef CONFIG_VIDEO_ADV_DEBUG
1230 int cx231xx_g_chip_info(struct file *file, void *fh,
1231 struct v4l2_dbg_chip_info *chip)
1233 switch (chip->match.addr) {
1234 case 0: /* Cx231xx - internal registers */
1236 case 1: /* AFE - read byte */
1237 strlcpy(chip->name, "AFE (byte)", sizeof(chip->name));
1239 case 2: /* Video Block - read byte */
1240 strlcpy(chip->name, "Video (byte)", sizeof(chip->name));
1242 case 3: /* I2S block - read byte */
1243 strlcpy(chip->name, "I2S (byte)", sizeof(chip->name));
1245 case 4: /* AFE - read dword */
1246 strlcpy(chip->name, "AFE (dword)", sizeof(chip->name));
1248 case 5: /* Video Block - read dword */
1249 strlcpy(chip->name, "Video (dword)", sizeof(chip->name));
1251 case 6: /* I2S Block - read dword */
1252 strlcpy(chip->name, "I2S (dword)", sizeof(chip->name));
1258 int cx231xx_g_register(struct file *file, void *priv,
1259 struct v4l2_dbg_register *reg)
1261 struct cx231xx_fh *fh = priv;
1262 struct cx231xx *dev = fh->dev;
1264 u8 value[4] = { 0, 0, 0, 0 };
1267 switch (reg->match.addr) {
1268 case 0: /* Cx231xx - internal registers */
1269 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1270 (u16)reg->reg, value, 4);
1271 reg->val = value[0] | value[1] << 8 |
1272 value[2] << 16 | value[3] << 24;
1275 case 1: /* AFE - read byte */
1276 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1277 (u16)reg->reg, 2, &data, 1);
1281 case 2: /* Video Block - read byte */
1282 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1283 (u16)reg->reg, 2, &data, 1);
1287 case 3: /* I2S block - read byte */
1288 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1289 (u16)reg->reg, 1, &data, 1);
1293 case 4: /* AFE - read dword */
1294 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1295 (u16)reg->reg, 2, &data, 4);
1299 case 5: /* Video Block - read dword */
1300 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1301 (u16)reg->reg, 2, &data, 4);
1305 case 6: /* I2S Block - read dword */
1306 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1307 (u16)reg->reg, 1, &data, 4);
1314 return ret < 0 ? ret : 0;
1317 int cx231xx_s_register(struct file *file, void *priv,
1318 const struct v4l2_dbg_register *reg)
1320 struct cx231xx_fh *fh = priv;
1321 struct cx231xx *dev = fh->dev;
1323 u8 data[4] = { 0, 0, 0, 0 };
1325 switch (reg->match.addr) {
1326 case 0: /* cx231xx internal registers */
1327 data[0] = (u8) reg->val;
1328 data[1] = (u8) (reg->val >> 8);
1329 data[2] = (u8) (reg->val >> 16);
1330 data[3] = (u8) (reg->val >> 24);
1331 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1332 (u16)reg->reg, data, 4);
1334 case 1: /* AFE - write byte */
1335 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1336 (u16)reg->reg, 2, reg->val, 1);
1338 case 2: /* Video Block - write byte */
1339 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1340 (u16)reg->reg, 2, reg->val, 1);
1342 case 3: /* I2S block - write byte */
1343 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1344 (u16)reg->reg, 1, reg->val, 1);
1346 case 4: /* AFE - write dword */
1347 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1348 (u16)reg->reg, 2, reg->val, 4);
1350 case 5: /* Video Block - write dword */
1351 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1352 (u16)reg->reg, 2, reg->val, 4);
1354 case 6: /* I2S block - write dword */
1355 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1356 (u16)reg->reg, 1, reg->val, 4);
1361 return ret < 0 ? ret : 0;
1365 static int vidioc_cropcap(struct file *file, void *priv,
1366 struct v4l2_cropcap *cc)
1368 struct cx231xx_fh *fh = priv;
1369 struct cx231xx *dev = fh->dev;
1371 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1374 cc->bounds.left = 0;
1376 cc->bounds.width = dev->width;
1377 cc->bounds.height = dev->height;
1378 cc->defrect = cc->bounds;
1379 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1380 cc->pixelaspect.denominator = 59;
1385 static int vidioc_streamon(struct file *file, void *priv,
1386 enum v4l2_buf_type type)
1388 struct cx231xx_fh *fh = priv;
1389 struct cx231xx *dev = fh->dev;
1392 rc = check_dev(dev);
1398 if (likely(rc >= 0))
1399 rc = videobuf_streamon(&fh->vb_vidq);
1401 call_all(dev, video, s_stream, 1);
1406 static int vidioc_streamoff(struct file *file, void *priv,
1407 enum v4l2_buf_type type)
1409 struct cx231xx_fh *fh = priv;
1410 struct cx231xx *dev = fh->dev;
1413 rc = check_dev(dev);
1417 if (type != fh->type)
1420 cx25840_call(dev, video, s_stream, 0);
1422 videobuf_streamoff(&fh->vb_vidq);
1428 int cx231xx_querycap(struct file *file, void *priv,
1429 struct v4l2_capability *cap)
1431 struct video_device *vdev = video_devdata(file);
1432 struct cx231xx_fh *fh = priv;
1433 struct cx231xx *dev = fh->dev;
1435 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1436 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1437 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1439 if (vdev->vfl_type == VFL_TYPE_RADIO)
1440 cap->device_caps = V4L2_CAP_RADIO;
1442 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1443 if (vdev->vfl_type == VFL_TYPE_VBI)
1444 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1446 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1448 if (dev->tuner_type != TUNER_ABSENT)
1449 cap->device_caps |= V4L2_CAP_TUNER;
1450 cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE |
1451 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1452 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1454 cap->capabilities |= V4L2_CAP_RADIO;
1459 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1460 struct v4l2_fmtdesc *f)
1462 if (unlikely(f->index >= ARRAY_SIZE(format)))
1465 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1466 f->pixelformat = format[f->index].fourcc;
1471 /* RAW VBI ioctls */
1473 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1474 struct v4l2_format *f)
1476 struct cx231xx_fh *fh = priv;
1477 struct cx231xx *dev = fh->dev;
1479 f->fmt.vbi.sampling_rate = 6750000 * 4;
1480 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1481 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1482 f->fmt.vbi.offset = 0;
1483 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1484 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1485 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1486 PAL_VBI_LINES : NTSC_VBI_LINES;
1487 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1488 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1489 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1490 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1496 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1497 struct v4l2_format *f)
1499 struct cx231xx_fh *fh = priv;
1500 struct cx231xx *dev = fh->dev;
1502 f->fmt.vbi.sampling_rate = 6750000 * 4;
1503 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1504 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1505 f->fmt.vbi.offset = 0;
1506 f->fmt.vbi.flags = 0;
1507 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1508 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1509 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1510 PAL_VBI_LINES : NTSC_VBI_LINES;
1511 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1512 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1513 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1514 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1520 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1521 struct v4l2_format *f)
1523 struct cx231xx_fh *fh = priv;
1524 struct cx231xx *dev = fh->dev;
1526 if (dev->vbi_stream_on && !fh->stream_on) {
1527 cx231xx_errdev("%s device in use by another fh\n", __func__);
1530 return vidioc_try_fmt_vbi_cap(file, priv, f);
1533 static int vidioc_reqbufs(struct file *file, void *priv,
1534 struct v4l2_requestbuffers *rb)
1536 struct cx231xx_fh *fh = priv;
1537 struct cx231xx *dev = fh->dev;
1540 rc = check_dev(dev);
1544 return videobuf_reqbufs(&fh->vb_vidq, rb);
1547 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1549 struct cx231xx_fh *fh = priv;
1550 struct cx231xx *dev = fh->dev;
1553 rc = check_dev(dev);
1557 return videobuf_querybuf(&fh->vb_vidq, b);
1560 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1562 struct cx231xx_fh *fh = priv;
1563 struct cx231xx *dev = fh->dev;
1566 rc = check_dev(dev);
1570 return videobuf_qbuf(&fh->vb_vidq, b);
1573 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1575 struct cx231xx_fh *fh = priv;
1576 struct cx231xx *dev = fh->dev;
1579 rc = check_dev(dev);
1583 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1586 /* ----------------------------------------------------------- */
1587 /* RADIO ESPECIFIC IOCTLS */
1588 /* ----------------------------------------------------------- */
1590 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1592 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1597 strcpy(t->name, "Radio");
1599 call_all(dev, tuner, g_tuner, t);
1603 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1605 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1610 call_all(dev, tuner, s_tuner, t);
1616 * cx231xx_v4l2_open()
1617 * inits the device and starts isoc transfer
1619 static int cx231xx_v4l2_open(struct file *filp)
1621 int errCode = 0, radio = 0;
1622 struct video_device *vdev = video_devdata(filp);
1623 struct cx231xx *dev = video_drvdata(filp);
1624 struct cx231xx_fh *fh;
1625 enum v4l2_buf_type fh_type = 0;
1627 switch (vdev->vfl_type) {
1628 case VFL_TYPE_GRABBER:
1629 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1632 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
1634 case VFL_TYPE_RADIO:
1639 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
1640 video_device_node_name(vdev), v4l2_type_names[fh_type],
1644 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1647 ("Device locked on digital mode. Can't open analog\n");
1652 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1654 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1657 if (mutex_lock_interruptible(&dev->lock)) {
1659 return -ERESTARTSYS;
1663 filp->private_data = fh;
1664 v4l2_fh_init(&fh->fh, vdev);
1666 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1667 /* Power up in Analog TV mode */
1668 if (dev->board.external_av)
1669 cx231xx_set_power_mode(dev,
1670 POLARIS_AVMODE_ENXTERNAL_AV);
1672 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1675 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1678 /* set video alternate setting */
1679 cx231xx_set_video_alternate(dev);
1681 /* Needed, since GPIO might have disabled power of
1683 cx231xx_config_i2c(dev);
1685 /* device needs to be initialized before isoc transfer */
1686 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1690 cx231xx_videodbg("video_open: setting radio device\n");
1692 /* cx231xx_start_radio(dev); */
1694 call_all(dev, tuner, s_radio);
1699 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1700 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
1701 NULL, &dev->video_mode.slock,
1702 fh->type, V4L2_FIELD_INTERLACED,
1703 sizeof(struct cx231xx_buffer),
1705 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1706 /* Set the required alternate setting VBI interface works in
1708 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1710 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
1711 NULL, &dev->vbi_mode.slock,
1712 fh->type, V4L2_FIELD_SEQ_TB,
1713 sizeof(struct cx231xx_buffer),
1716 mutex_unlock(&dev->lock);
1717 v4l2_fh_add(&fh->fh);
1723 * cx231xx_realease_resources()
1724 * unregisters the v4l2,i2c and usb devices
1725 * called when the device gets disconected or at module unload
1727 void cx231xx_release_analog_resources(struct cx231xx *dev)
1730 /*FIXME: I2C IR should be disconnected */
1732 if (dev->radio_dev) {
1733 if (video_is_registered(dev->radio_dev))
1734 video_unregister_device(dev->radio_dev);
1736 video_device_release(dev->radio_dev);
1737 dev->radio_dev = NULL;
1740 cx231xx_info("V4L2 device %s deregistered\n",
1741 video_device_node_name(dev->vbi_dev));
1742 if (video_is_registered(dev->vbi_dev))
1743 video_unregister_device(dev->vbi_dev);
1745 video_device_release(dev->vbi_dev);
1746 dev->vbi_dev = NULL;
1749 cx231xx_info("V4L2 device %s deregistered\n",
1750 video_device_node_name(dev->vdev));
1752 if (dev->board.has_417)
1753 cx231xx_417_unregister(dev);
1755 if (video_is_registered(dev->vdev))
1756 video_unregister_device(dev->vdev);
1758 video_device_release(dev->vdev);
1761 v4l2_ctrl_handler_free(&dev->ctrl_handler);
1762 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1767 * stops streaming and deallocates all resources allocated by the v4l2
1770 static int cx231xx_close(struct file *filp)
1772 struct cx231xx_fh *fh = filp->private_data;
1773 struct cx231xx *dev = fh->dev;
1775 cx231xx_videodbg("users=%d\n", dev->users);
1777 cx231xx_videodbg("users=%d\n", dev->users);
1782 * To workaround error number=-71 on EP0 for VideoGrabber,
1783 * need exclude following.
1784 * FIXME: It is probably safe to remove most of these, as we're
1785 * now avoiding the alternate setting for INDEX_VANC
1787 if (!dev->board.no_alt_vanc)
1788 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1789 videobuf_stop(&fh->vb_vidq);
1790 videobuf_mmap_free(&fh->vb_vidq);
1792 /* the device is already disconnect,
1793 free the remaining resources */
1794 if (dev->state & DEV_DISCONNECTED) {
1795 if (atomic_read(&dev->devlist_count) > 0) {
1796 cx231xx_release_resources(dev);
1803 /* do this before setting alternate! */
1804 cx231xx_uninit_vbi_isoc(dev);
1806 /* set alternate 0 */
1807 if (!dev->vbi_or_sliced_cc_mode)
1808 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1810 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1812 v4l2_fh_del(&fh->fh);
1813 v4l2_fh_exit(&fh->fh);
1816 wake_up_interruptible_nr(&dev->open, 1);
1820 v4l2_fh_del(&fh->fh);
1823 videobuf_stop(&fh->vb_vidq);
1824 videobuf_mmap_free(&fh->vb_vidq);
1826 /* the device is already disconnect,
1827 free the remaining resources */
1828 if (dev->state & DEV_DISCONNECTED) {
1829 cx231xx_release_resources(dev);
1834 /* Save some power by putting tuner to sleep */
1835 call_all(dev, core, s_power, 0);
1837 /* do this before setting alternate! */
1839 cx231xx_uninit_isoc(dev);
1841 cx231xx_uninit_bulk(dev);
1842 cx231xx_set_mode(dev, CX231XX_SUSPEND);
1844 /* set alternate 0 */
1845 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1847 v4l2_fh_exit(&fh->fh);
1849 wake_up_interruptible_nr(&dev->open, 1);
1853 static int cx231xx_v4l2_close(struct file *filp)
1855 struct cx231xx_fh *fh = filp->private_data;
1856 struct cx231xx *dev = fh->dev;
1859 mutex_lock(&dev->lock);
1860 rc = cx231xx_close(filp);
1861 mutex_unlock(&dev->lock);
1866 * cx231xx_v4l2_read()
1867 * will allocate buffers when called for the first time
1870 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
1873 struct cx231xx_fh *fh = filp->private_data;
1874 struct cx231xx *dev = fh->dev;
1877 rc = check_dev(dev);
1881 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
1882 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
1885 if (unlikely(rc < 0))
1888 if (mutex_lock_interruptible(&dev->lock))
1889 return -ERESTARTSYS;
1890 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1891 filp->f_flags & O_NONBLOCK);
1892 mutex_unlock(&dev->lock);
1899 * cx231xx_v4l2_poll()
1900 * will allocate buffers when called for the first time
1902 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
1904 unsigned long req_events = poll_requested_events(wait);
1905 struct cx231xx_fh *fh = filp->private_data;
1906 struct cx231xx *dev = fh->dev;
1910 rc = check_dev(dev);
1916 if (unlikely(rc < 0))
1919 if (v4l2_event_pending(&fh->fh))
1922 poll_wait(filp, &fh->fh.wait, wait);
1924 if (!(req_events & (POLLIN | POLLRDNORM)))
1927 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
1928 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) {
1929 mutex_lock(&dev->lock);
1930 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1931 mutex_unlock(&dev->lock);
1934 return res | POLLERR;
1938 * cx231xx_v4l2_mmap()
1940 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
1942 struct cx231xx_fh *fh = filp->private_data;
1943 struct cx231xx *dev = fh->dev;
1946 rc = check_dev(dev);
1952 if (unlikely(rc < 0))
1955 if (mutex_lock_interruptible(&dev->lock))
1956 return -ERESTARTSYS;
1957 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1958 mutex_unlock(&dev->lock);
1960 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
1961 (unsigned long)vma->vm_start,
1962 (unsigned long)vma->vm_end -
1963 (unsigned long)vma->vm_start, rc);
1968 static const struct v4l2_file_operations cx231xx_v4l_fops = {
1969 .owner = THIS_MODULE,
1970 .open = cx231xx_v4l2_open,
1971 .release = cx231xx_v4l2_close,
1972 .read = cx231xx_v4l2_read,
1973 .poll = cx231xx_v4l2_poll,
1974 .mmap = cx231xx_v4l2_mmap,
1975 .unlocked_ioctl = video_ioctl2,
1978 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1979 .vidioc_querycap = cx231xx_querycap,
1980 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1981 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1982 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1983 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1984 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1985 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
1986 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
1987 .vidioc_cropcap = vidioc_cropcap,
1988 .vidioc_reqbufs = vidioc_reqbufs,
1989 .vidioc_querybuf = vidioc_querybuf,
1990 .vidioc_qbuf = vidioc_qbuf,
1991 .vidioc_dqbuf = vidioc_dqbuf,
1992 .vidioc_s_std = vidioc_s_std,
1993 .vidioc_g_std = vidioc_g_std,
1994 .vidioc_enum_input = cx231xx_enum_input,
1995 .vidioc_g_input = cx231xx_g_input,
1996 .vidioc_s_input = cx231xx_s_input,
1997 .vidioc_streamon = vidioc_streamon,
1998 .vidioc_streamoff = vidioc_streamoff,
1999 .vidioc_g_tuner = cx231xx_g_tuner,
2000 .vidioc_s_tuner = cx231xx_s_tuner,
2001 .vidioc_g_frequency = cx231xx_g_frequency,
2002 .vidioc_s_frequency = cx231xx_s_frequency,
2003 #ifdef CONFIG_VIDEO_ADV_DEBUG
2004 .vidioc_g_chip_info = cx231xx_g_chip_info,
2005 .vidioc_g_register = cx231xx_g_register,
2006 .vidioc_s_register = cx231xx_s_register,
2008 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2009 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2012 static struct video_device cx231xx_vbi_template;
2014 static const struct video_device cx231xx_video_template = {
2015 .fops = &cx231xx_v4l_fops,
2016 .release = video_device_release,
2017 .ioctl_ops = &video_ioctl_ops,
2018 .tvnorms = V4L2_STD_ALL,
2021 static const struct v4l2_file_operations radio_fops = {
2022 .owner = THIS_MODULE,
2023 .open = cx231xx_v4l2_open,
2024 .release = cx231xx_v4l2_close,
2025 .poll = v4l2_ctrl_poll,
2026 .unlocked_ioctl = video_ioctl2,
2029 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2030 .vidioc_querycap = cx231xx_querycap,
2031 .vidioc_g_tuner = radio_g_tuner,
2032 .vidioc_s_tuner = radio_s_tuner,
2033 .vidioc_g_frequency = cx231xx_g_frequency,
2034 .vidioc_s_frequency = cx231xx_s_frequency,
2035 #ifdef CONFIG_VIDEO_ADV_DEBUG
2036 .vidioc_g_chip_info = cx231xx_g_chip_info,
2037 .vidioc_g_register = cx231xx_g_register,
2038 .vidioc_s_register = cx231xx_s_register,
2040 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2041 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2044 static struct video_device cx231xx_radio_template = {
2045 .name = "cx231xx-radio",
2046 .fops = &radio_fops,
2047 .ioctl_ops = &radio_ioctl_ops,
2050 /******************************** usb interface ******************************/
2052 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2053 const struct video_device
2054 *template, const char *type_name)
2056 struct video_device *vfd;
2058 vfd = video_device_alloc();
2063 vfd->v4l2_dev = &dev->v4l2_dev;
2064 vfd->release = video_device_release;
2065 vfd->debug = video_debug;
2066 vfd->lock = &dev->lock;
2067 set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
2069 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2071 video_set_drvdata(vfd, dev);
2072 if (dev->tuner_type == TUNER_ABSENT) {
2073 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
2074 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
2075 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
2076 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
2081 int cx231xx_register_analog_devices(struct cx231xx *dev)
2085 cx231xx_info("%s: v4l2 driver version %s\n",
2086 dev->name, CX231XX_VERSION);
2088 /* set default norm */
2089 dev->norm = V4L2_STD_PAL;
2090 dev->width = norm_maxw(dev);
2091 dev->height = norm_maxh(dev);
2092 dev->interlaced = 0;
2094 /* Analog specific initialization */
2095 dev->format = &format[0];
2097 /* Set the initial input */
2098 video_mux(dev, dev->video_input);
2100 call_all(dev, core, s_std, dev->norm);
2102 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
2103 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
2105 if (dev->sd_cx25840) {
2106 v4l2_ctrl_add_handler(&dev->ctrl_handler,
2107 dev->sd_cx25840->ctrl_handler, NULL);
2108 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
2109 dev->sd_cx25840->ctrl_handler,
2110 v4l2_ctrl_radio_filter);
2113 if (dev->ctrl_handler.error)
2114 return dev->ctrl_handler.error;
2115 if (dev->radio_ctrl_handler.error)
2116 return dev->radio_ctrl_handler.error;
2118 /* enable vbi capturing */
2119 /* write code here... */
2121 /* allocate and fill video video_device struct */
2122 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2124 cx231xx_errdev("cannot allocate video_device.\n");
2128 dev->vdev->ctrl_handler = &dev->ctrl_handler;
2129 /* register v4l2 video video_device */
2130 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2131 video_nr[dev->devno]);
2133 cx231xx_errdev("unable to register video device (error=%i).\n",
2138 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2139 dev->name, video_device_node_name(dev->vdev));
2141 /* Initialize VBI template */
2142 cx231xx_vbi_template = cx231xx_video_template;
2143 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2145 /* Allocate and fill vbi video_device struct */
2146 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2148 if (!dev->vbi_dev) {
2149 cx231xx_errdev("cannot allocate video_device.\n");
2152 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
2153 /* register v4l2 vbi video_device */
2154 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2155 vbi_nr[dev->devno]);
2157 cx231xx_errdev("unable to register vbi device\n");
2161 cx231xx_info("%s/0: registered device %s\n",
2162 dev->name, video_device_node_name(dev->vbi_dev));
2164 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2165 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2167 if (!dev->radio_dev) {
2168 cx231xx_errdev("cannot allocate video_device.\n");
2171 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
2172 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2173 radio_nr[dev->devno]);
2175 cx231xx_errdev("can't register radio device\n");
2178 cx231xx_info("Registered radio device as %s\n",
2179 video_device_node_name(dev->radio_dev));
2182 cx231xx_info("V4L2 device registered as %s and %s\n",
2183 video_device_node_name(dev->vdev),
2184 video_device_node_name(dev->vbi_dev));