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>
32 #include <linux/version.h>
34 #include <linux/mutex.h>
35 #include <linux/slab.h>
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-ioctl.h>
39 #include <media/v4l2-chip-ident.h>
40 #include <media/msp3400.h>
41 #include <media/tuner.h>
43 #include "dvb_frontend.h"
46 #include "cx231xx-vbi.h"
48 #define CX231XX_VERSION_CODE KERNEL_VERSION(0, 0, 1)
50 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
51 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
53 #define cx231xx_videodbg(fmt, arg...) do {\
55 printk(KERN_INFO "%s %s :"fmt, \
56 dev->name, __func__ , ##arg); } while (0)
58 static unsigned int isoc_debug;
59 module_param(isoc_debug, int, 0644);
60 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
62 #define cx231xx_isocdbg(fmt, arg...) \
65 printk(KERN_INFO "%s %s :"fmt, \
66 dev->name, __func__ , ##arg); \
70 MODULE_AUTHOR(DRIVER_AUTHOR);
71 MODULE_DESCRIPTION(DRIVER_DESC);
72 MODULE_LICENSE("GPL");
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,
103 /* supported controls */
104 /* Common to all boards */
106 /* ------------------------------------------------------------------- */
108 static const struct v4l2_queryctrl no_ctl = {
110 .flags = V4L2_CTRL_FLAG_DISABLED,
113 static struct cx231xx_ctrl cx231xx_ctls[] = {
117 .id = V4L2_CID_BRIGHTNESS,
118 .name = "Brightness",
122 .default_value = 0x7f,
123 .type = V4L2_CTRL_TYPE_INTEGER,
131 .id = V4L2_CID_CONTRAST,
136 .default_value = 0x3f,
137 .type = V4L2_CTRL_TYPE_INTEGER,
150 .default_value = 0x7f,
151 .type = V4L2_CTRL_TYPE_INTEGER,
158 /* strictly, this only describes only U saturation.
159 * V saturation is handled specially through code.
162 .id = V4L2_CID_SATURATION,
163 .name = "Saturation",
167 .default_value = 0x7f,
168 .type = V4L2_CTRL_TYPE_INTEGER,
177 .id = V4L2_CID_AUDIO_MUTE,
182 .type = V4L2_CTRL_TYPE_BOOLEAN,
185 .mask = (0x1f << 24),
189 .id = V4L2_CID_AUDIO_VOLUME,
194 .default_value = 0x3f,
195 .type = V4L2_CTRL_TYPE_INTEGER,
197 .reg = PATH1_VOL_CTL,
202 static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
204 static const u32 cx231xx_user_ctrls[] = {
210 V4L2_CID_AUDIO_VOLUME,
212 V4L2_CID_AUDIO_BALANCE,
218 static const u32 *ctrl_classes[] = {
223 /* ------------------------------------------------------------------
224 Video buffer and parser functions
225 ------------------------------------------------------------------*/
228 * Announces that a buffer were filled and request the next
230 static inline void buffer_filled(struct cx231xx *dev,
231 struct cx231xx_dmaqueue *dma_q,
232 struct cx231xx_buffer *buf)
234 /* Advice that buffer was filled */
235 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
236 buf->vb.state = VIDEOBUF_DONE;
237 buf->vb.field_count++;
238 do_gettimeofday(&buf->vb.ts);
240 dev->video_mode.isoc_ctl.buf = NULL;
242 list_del(&buf->vb.queue);
243 wake_up(&buf->vb.done);
246 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
248 char *errmsg = "Unknown";
252 errmsg = "unlinked synchronuously";
255 errmsg = "unlinked asynchronuously";
258 errmsg = "Buffer error (overrun)";
261 errmsg = "Stalled (device not responding)";
264 errmsg = "Babble (bad cable?)";
267 errmsg = "Bit-stuff error (bad cable?)";
270 errmsg = "CRC/Timeout (could be anything)";
273 errmsg = "Device does not respond";
277 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
279 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
280 packet, status, errmsg);
285 * video-buf generic routine to get the next available buffer
287 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
288 struct cx231xx_buffer **buf)
290 struct cx231xx_video_mode *vmode =
291 container_of(dma_q, struct cx231xx_video_mode, vidq);
292 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
296 if (list_empty(&dma_q->active)) {
297 cx231xx_isocdbg("No active queue to serve\n");
298 dev->video_mode.isoc_ctl.buf = NULL;
303 /* Get the next buffer */
304 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
306 /* Cleans up buffer - Usefull for testing for frame/URB loss */
307 outp = videobuf_to_vmalloc(&(*buf)->vb);
308 memset(outp, 0, (*buf)->vb.size);
310 dev->video_mode.isoc_ctl.buf = *buf;
316 * Controls the isoc copy of each urb packet
318 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
320 struct cx231xx_buffer *buf;
321 struct cx231xx_dmaqueue *dma_q = urb->context;
322 unsigned char *outp = NULL;
324 unsigned char *p_buffer;
325 u32 bytes_parsed = 0, buffer_size = 0;
331 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
334 if (urb->status < 0) {
335 print_err_status(dev, -1, urb->status);
336 if (urb->status == -ENOENT)
340 buf = dev->video_mode.isoc_ctl.buf;
342 outp = videobuf_to_vmalloc(&buf->vb);
344 for (i = 0; i < urb->number_of_packets; i++) {
345 int status = urb->iso_frame_desc[i].status;
348 print_err_status(dev, i, status);
349 if (urb->iso_frame_desc[i].status != -EPROTO)
353 if (urb->iso_frame_desc[i].actual_length <= 0) {
354 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
357 if (urb->iso_frame_desc[i].actual_length >
358 dev->video_mode.max_pkt_size) {
359 cx231xx_isocdbg("packet bigger than packet size");
363 /* get buffer pointer and length */
364 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
365 buffer_size = urb->iso_frame_desc[i].actual_length;
368 if (dma_q->is_partial_line) {
369 /* Handle the case of a partial line */
370 sav_eav = dma_q->last_sav;
372 /* Check for a SAV/EAV overlapping
373 the buffer boundary */
375 cx231xx_find_boundary_SAV_EAV(p_buffer,
381 /* Get the first line if we have some portion of an SAV/EAV from
382 the last buffer or a partial line */
384 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
385 sav_eav, /* SAV/EAV */
386 p_buffer + bytes_parsed, /* p_buffer */
387 buffer_size - bytes_parsed);/* buf size */
390 /* Now parse data that is completely in this buffer */
391 /* dma_q->is_partial_line = 0; */
393 while (bytes_parsed < buffer_size) {
396 sav_eav = cx231xx_find_next_SAV_EAV(
397 p_buffer + bytes_parsed, /* p_buffer */
398 buffer_size - bytes_parsed, /* buf size */
399 &bytes_used);/* bytes used to get SAV/EAV */
401 bytes_parsed += bytes_used;
404 if (sav_eav && (bytes_parsed < buffer_size)) {
405 bytes_parsed += cx231xx_get_video_line(dev,
406 dma_q, sav_eav, /* SAV/EAV */
407 p_buffer + bytes_parsed,/* p_buffer */
408 buffer_size - bytes_parsed);/*buf size*/
412 /* Save the last four bytes of the buffer so we can check the
413 buffer boundary condition next time */
414 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
421 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
425 u8 boundary_bytes[8];
430 /* Create an array of the last 4 bytes of the last buffer and the first
431 4 bytes of the current buffer. */
433 memcpy(boundary_bytes, partial_buf, 4);
434 memcpy(boundary_bytes + 4, p_buffer, 4);
436 /* Check for the SAV/EAV in the boundary buffer */
437 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
441 /* found a boundary SAV/EAV. Updates the bytes used to reflect
442 only those used in the new buffer */
443 *p_bytes_used = bytes_used - 4;
449 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
455 * Don't search if the buffer size is less than 4. It causes a page
456 * fault since buffer_size - 4 evaluates to a large number in that
459 if (buffer_size < 4) {
460 *p_bytes_used = buffer_size;
464 for (i = 0; i < (buffer_size - 3); i++) {
466 if ((p_buffer[i] == 0xFF) &&
467 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
469 *p_bytes_used = i + 4;
470 sav_eav = p_buffer[i + 3];
475 *p_bytes_used = buffer_size;
479 u32 cx231xx_get_video_line(struct cx231xx *dev,
480 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
481 u8 *p_buffer, u32 buffer_size)
483 u32 bytes_copied = 0;
484 int current_field = -1;
487 case SAV_ACTIVE_VIDEO_FIELD1:
488 /* looking for skipped line which occurred in PAL 720x480 mode.
489 In this case, there will be no active data contained
490 between the SAV and EAV */
491 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
492 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
493 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
494 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
495 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
496 (p_buffer[3] == EAV_VBLANK_FIELD2)))
501 case SAV_ACTIVE_VIDEO_FIELD2:
502 /* looking for skipped line which occurred in PAL 720x480 mode.
503 In this case, there will be no active data contained between
505 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
506 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
507 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
508 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
509 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
510 (p_buffer[3] == EAV_VBLANK_FIELD2)))
516 dma_q->last_sav = sav_eav;
518 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
519 buffer_size, current_field);
524 u32 cx231xx_copy_video_line(struct cx231xx *dev,
525 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
526 u32 length, int field_number)
529 struct cx231xx_buffer *buf;
530 u32 _line_size = dev->width * 2;
532 if (dma_q->current_field != field_number)
533 cx231xx_reset_video_buffer(dev, dma_q);
535 /* get the buffer pointer */
536 buf = dev->video_mode.isoc_ctl.buf;
538 /* Remember the field number for next time */
539 dma_q->current_field = field_number;
541 bytes_to_copy = dma_q->bytes_left_in_line;
542 if (bytes_to_copy > length)
543 bytes_to_copy = length;
545 if (dma_q->lines_completed >= dma_q->lines_per_field) {
546 dma_q->bytes_left_in_line -= bytes_to_copy;
547 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
552 dma_q->is_partial_line = 1;
554 /* If we don't have a buffer, just return the number of bytes we would
555 have copied if we had a buffer. */
557 dma_q->bytes_left_in_line -= bytes_to_copy;
558 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
560 return bytes_to_copy;
563 /* copy the data to video buffer */
564 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
566 dma_q->pos += bytes_to_copy;
567 dma_q->bytes_left_in_line -= bytes_to_copy;
569 if (dma_q->bytes_left_in_line == 0) {
570 dma_q->bytes_left_in_line = _line_size;
571 dma_q->lines_completed++;
572 dma_q->is_partial_line = 0;
574 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
575 buffer_filled(dev, dma_q, buf);
579 dma_q->lines_completed = 0;
583 return bytes_to_copy;
586 void cx231xx_reset_video_buffer(struct cx231xx *dev,
587 struct cx231xx_dmaqueue *dma_q)
589 struct cx231xx_buffer *buf;
591 /* handle the switch from field 1 to field 2 */
592 if (dma_q->current_field == 1) {
593 if (dma_q->lines_completed >= dma_q->lines_per_field)
594 dma_q->field1_done = 1;
596 dma_q->field1_done = 0;
599 buf = dev->video_mode.isoc_ctl.buf;
603 /* first try to get the buffer */
604 get_next_buf(dma_q, &buf);
607 outp = videobuf_to_vmalloc(&buf->vb);
610 dma_q->field1_done = 0;
611 dma_q->current_field = -1;
614 /* reset the counters */
615 dma_q->bytes_left_in_line = dev->width << 1;
616 dma_q->lines_completed = 0;
619 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
620 u8 *p_buffer, u32 bytes_to_copy)
622 u8 *p_out_buffer = NULL;
623 u32 current_line_bytes_copied = 0;
624 struct cx231xx_buffer *buf;
625 u32 _line_size = dev->width << 1;
629 buf = dev->video_mode.isoc_ctl.buf;
634 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
636 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
638 /* Offset field 2 one line from the top of the buffer */
639 offset = (dma_q->current_field == 1) ? 0 : _line_size;
641 /* Offset for field 2 */
642 startwrite = p_out_buffer + offset;
644 /* lines already completed in the current field */
645 startwrite += (dma_q->lines_completed * _line_size * 2);
647 /* bytes already completed in the current line */
648 startwrite += current_line_bytes_copied;
650 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
651 bytes_to_copy : dma_q->bytes_left_in_line;
653 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
656 /* The below copies the UYVY data straight into video buffer */
657 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
662 void cx231xx_swab(u16 *from, u16 *to, u16 len)
669 for (i = 0; i < len / 2; i++)
670 to[i] = (from[i] << 8) | (from[i] >> 8);
673 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
675 u8 buffer_complete = 0;
677 /* Dual field stream */
678 buffer_complete = ((dma_q->current_field == 2) &&
679 (dma_q->lines_completed >= dma_q->lines_per_field) &&
682 return buffer_complete;
685 /* ------------------------------------------------------------------
687 ------------------------------------------------------------------*/
690 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
692 struct cx231xx_fh *fh = vq->priv_data;
693 struct cx231xx *dev = fh->dev;
694 struct v4l2_frequency f;
696 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
698 *count = CX231XX_DEF_BUF;
700 if (*count < CX231XX_MIN_BUF)
701 *count = CX231XX_MIN_BUF;
703 /* Ask tuner to go to analog mode */
704 memset(&f, 0, sizeof(f));
705 f.frequency = dev->ctl_freq;
706 f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
708 call_all(dev, tuner, s_frequency, &f);
713 /* This is called *without* dev->slock held; please keep it that way */
714 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
716 struct cx231xx_fh *fh = vq->priv_data;
717 struct cx231xx *dev = fh->dev;
718 unsigned long flags = 0;
723 /* We used to wait for the buffer to finish here, but this didn't work
724 because, as we were keeping the state as VIDEOBUF_QUEUED,
725 videobuf_queue_cancel marked it as finished for us.
726 (Also, it could wedge forever if the hardware was misconfigured.)
728 This should be safe; by the time we get here, the buffer isn't
729 queued anymore. If we ever start marking the buffers as
730 VIDEOBUF_ACTIVE, it won't be, though.
732 spin_lock_irqsave(&dev->video_mode.slock, flags);
733 if (dev->video_mode.isoc_ctl.buf == buf)
734 dev->video_mode.isoc_ctl.buf = NULL;
735 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
737 videobuf_vmalloc_free(&buf->vb);
738 buf->vb.state = VIDEOBUF_NEEDS_INIT;
742 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
743 enum v4l2_field field)
745 struct cx231xx_fh *fh = vq->priv_data;
746 struct cx231xx_buffer *buf =
747 container_of(vb, struct cx231xx_buffer, vb);
748 struct cx231xx *dev = fh->dev;
749 int rc = 0, urb_init = 0;
751 /* The only currently supported format is 16 bits/pixel */
752 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
754 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
757 buf->vb.width = dev->width;
758 buf->vb.height = dev->height;
759 buf->vb.field = field;
761 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
762 rc = videobuf_iolock(vq, &buf->vb, NULL);
767 if (!dev->video_mode.isoc_ctl.num_bufs)
771 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
773 dev->video_mode.max_pkt_size,
779 buf->vb.state = VIDEOBUF_PREPARED;
783 free_buffer(vq, buf);
787 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
789 struct cx231xx_buffer *buf =
790 container_of(vb, struct cx231xx_buffer, vb);
791 struct cx231xx_fh *fh = vq->priv_data;
792 struct cx231xx *dev = fh->dev;
793 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
795 buf->vb.state = VIDEOBUF_QUEUED;
796 list_add_tail(&buf->vb.queue, &vidq->active);
800 static void buffer_release(struct videobuf_queue *vq,
801 struct videobuf_buffer *vb)
803 struct cx231xx_buffer *buf =
804 container_of(vb, struct cx231xx_buffer, vb);
805 struct cx231xx_fh *fh = vq->priv_data;
806 struct cx231xx *dev = (struct cx231xx *)fh->dev;
808 cx231xx_isocdbg("cx231xx: called buffer_release\n");
810 free_buffer(vq, buf);
813 static struct videobuf_queue_ops cx231xx_video_qops = {
814 .buf_setup = buffer_setup,
815 .buf_prepare = buffer_prepare,
816 .buf_queue = buffer_queue,
817 .buf_release = buffer_release,
820 /********************* v4l2 interface **************************************/
822 void video_mux(struct cx231xx *dev, int index)
824 dev->video_input = index;
825 dev->ctl_ainput = INPUT(index)->amux;
827 cx231xx_set_video_input_mux(dev, index);
829 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
831 cx231xx_set_audio_input(dev, dev->ctl_ainput);
833 cx231xx_info("video_mux : %d\n", index);
835 /* do mode control overrides if required */
836 cx231xx_do_mode_ctrl_overrides(dev);
839 /* Usage lock check functions */
840 static int res_get(struct cx231xx_fh *fh)
842 struct cx231xx *dev = fh->dev;
845 /* This instance already has stream_on */
849 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
853 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
854 if (dev->vbi_stream_on)
856 dev->vbi_stream_on = 1;
865 static int res_check(struct cx231xx_fh *fh)
867 return fh->stream_on;
870 static void res_free(struct cx231xx_fh *fh)
872 struct cx231xx *dev = fh->dev;
876 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
878 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
879 dev->vbi_stream_on = 0;
882 static int check_dev(struct cx231xx *dev)
884 if (dev->state & DEV_DISCONNECTED) {
885 cx231xx_errdev("v4l2 ioctl: device not present\n");
889 if (dev->state & DEV_MISCONFIGURED) {
890 cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
891 "close and open it again\n");
897 static void get_scale(struct cx231xx *dev,
898 unsigned int width, unsigned int height,
899 unsigned int *hscale, unsigned int *vscale)
901 unsigned int maxw = norm_maxw(dev);
902 unsigned int maxh = norm_maxh(dev);
904 *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
905 if (*hscale >= 0x4000)
908 *vscale = (((unsigned long)maxh) << 12) / height - 4096L;
909 if (*vscale >= 0x4000)
913 /* ------------------------------------------------------------------
914 IOCTL vidioc handling
915 ------------------------------------------------------------------*/
917 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
918 struct v4l2_format *f)
920 struct cx231xx_fh *fh = priv;
921 struct cx231xx *dev = fh->dev;
923 mutex_lock(&dev->lock);
925 f->fmt.pix.width = dev->width;
926 f->fmt.pix.height = dev->height;
927 f->fmt.pix.pixelformat = dev->format->fourcc;
928 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
929 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
930 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
932 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
934 mutex_unlock(&dev->lock);
939 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
943 for (i = 0; i < ARRAY_SIZE(format); i++)
944 if (format[i].fourcc == fourcc)
950 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
951 struct v4l2_format *f)
953 struct cx231xx_fh *fh = priv;
954 struct cx231xx *dev = fh->dev;
955 unsigned int width = f->fmt.pix.width;
956 unsigned int height = f->fmt.pix.height;
957 unsigned int maxw = norm_maxw(dev);
958 unsigned int maxh = norm_maxh(dev);
959 unsigned int hscale, vscale;
960 struct cx231xx_fmt *fmt;
962 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
964 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
965 f->fmt.pix.pixelformat);
969 /* width must even because of the YUYV format
970 height must be even because of interlacing */
971 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
973 get_scale(dev, width, height, &hscale, &vscale);
975 width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
976 height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
978 f->fmt.pix.width = width;
979 f->fmt.pix.height = height;
980 f->fmt.pix.pixelformat = fmt->fourcc;
981 f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
982 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
983 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
984 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
989 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
990 struct v4l2_format *f)
992 struct cx231xx_fh *fh = priv;
993 struct cx231xx *dev = fh->dev;
995 struct cx231xx_fmt *fmt;
1001 mutex_lock(&dev->lock);
1003 vidioc_try_fmt_vid_cap(file, priv, f);
1005 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1011 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1012 cx231xx_errdev("%s queue busy\n", __func__);
1017 if (dev->stream_on && !fh->stream_on) {
1018 cx231xx_errdev("%s device in use by another fh\n", __func__);
1023 /* set new image size */
1024 dev->width = f->fmt.pix.width;
1025 dev->height = f->fmt.pix.height;
1027 get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1029 call_all(dev, video, s_fmt, f);
1031 /* Set the correct alternate setting for this resolution */
1032 cx231xx_resolution_set(dev);
1035 mutex_unlock(&dev->lock);
1039 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id * id)
1041 struct cx231xx_fh *fh = priv;
1042 struct cx231xx *dev = fh->dev;
1048 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1050 struct cx231xx_fh *fh = priv;
1051 struct cx231xx *dev = fh->dev;
1052 struct v4l2_format f;
1055 rc = check_dev(dev);
1059 cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1061 mutex_lock(&dev->lock);
1064 /* Adjusts width/height, if needed */
1065 f.fmt.pix.width = dev->width;
1066 f.fmt.pix.height = dev->height;
1067 vidioc_try_fmt_vid_cap(file, priv, &f);
1069 /* set new image size */
1070 dev->width = f.fmt.pix.width;
1071 dev->height = f.fmt.pix.height;
1072 get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1074 call_all(dev, core, s_std, dev->norm);
1076 mutex_unlock(&dev->lock);
1078 cx231xx_resolution_set(dev);
1080 /* do mode control overrides */
1081 cx231xx_do_mode_ctrl_overrides(dev);
1086 static const char *iname[] = {
1087 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1088 [CX231XX_VMUX_SVIDEO] = "S-Video",
1089 [CX231XX_VMUX_TELEVISION] = "Television",
1090 [CX231XX_VMUX_CABLE] = "Cable TV",
1091 [CX231XX_VMUX_DVB] = "DVB",
1092 [CX231XX_VMUX_DEBUG] = "for debug only",
1095 static int vidioc_enum_input(struct file *file, void *priv,
1096 struct v4l2_input *i)
1098 struct cx231xx_fh *fh = priv;
1099 struct cx231xx *dev = fh->dev;
1103 if (n >= MAX_CX231XX_INPUT)
1105 if (0 == INPUT(n)->type)
1109 i->type = V4L2_INPUT_TYPE_CAMERA;
1111 strcpy(i->name, iname[INPUT(n)->type]);
1113 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1114 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1115 i->type = V4L2_INPUT_TYPE_TUNER;
1117 i->std = dev->vdev->tvnorms;
1122 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1124 struct cx231xx_fh *fh = priv;
1125 struct cx231xx *dev = fh->dev;
1127 *i = dev->video_input;
1132 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1134 struct cx231xx_fh *fh = priv;
1135 struct cx231xx *dev = fh->dev;
1138 rc = check_dev(dev);
1142 if (i >= MAX_CX231XX_INPUT)
1144 if (0 == INPUT(i)->type)
1147 mutex_lock(&dev->lock);
1151 mutex_unlock(&dev->lock);
1155 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1157 struct cx231xx_fh *fh = priv;
1158 struct cx231xx *dev = fh->dev;
1161 case CX231XX_AMUX_VIDEO:
1162 strcpy(a->name, "Television");
1164 case CX231XX_AMUX_LINE_IN:
1165 strcpy(a->name, "Line In");
1171 a->index = dev->ctl_ainput;
1172 a->capability = V4L2_AUDCAP_STEREO;
1177 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1179 struct cx231xx_fh *fh = priv;
1180 struct cx231xx *dev = fh->dev;
1183 /* Doesn't allow manual routing */
1184 if (a->index != dev->ctl_ainput)
1187 dev->ctl_ainput = INPUT(a->index)->amux;
1188 status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1193 static int vidioc_queryctrl(struct file *file, void *priv,
1194 struct v4l2_queryctrl *qc)
1196 struct cx231xx_fh *fh = priv;
1197 struct cx231xx *dev = fh->dev;
1202 rc = check_dev(dev);
1206 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1207 if (unlikely(qc->id == 0))
1210 memset(qc, 0, sizeof(*qc));
1214 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1217 for (i = 0; i < CX231XX_CTLS; i++)
1218 if (cx231xx_ctls[i].v.id == qc->id)
1221 if (i == CX231XX_CTLS) {
1225 *qc = cx231xx_ctls[i].v;
1227 mutex_lock(&dev->lock);
1228 call_all(dev, core, queryctrl, qc);
1229 mutex_unlock(&dev->lock);
1237 static int vidioc_g_ctrl(struct file *file, void *priv,
1238 struct v4l2_control *ctrl)
1240 struct cx231xx_fh *fh = priv;
1241 struct cx231xx *dev = fh->dev;
1244 rc = check_dev(dev);
1248 mutex_lock(&dev->lock);
1249 call_all(dev, core, g_ctrl, ctrl);
1250 mutex_unlock(&dev->lock);
1254 static int vidioc_s_ctrl(struct file *file, void *priv,
1255 struct v4l2_control *ctrl)
1257 struct cx231xx_fh *fh = priv;
1258 struct cx231xx *dev = fh->dev;
1261 rc = check_dev(dev);
1265 mutex_lock(&dev->lock);
1266 call_all(dev, core, s_ctrl, ctrl);
1267 mutex_unlock(&dev->lock);
1271 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1273 struct cx231xx_fh *fh = priv;
1274 struct cx231xx *dev = fh->dev;
1277 rc = check_dev(dev);
1284 strcpy(t->name, "Tuner");
1286 t->type = V4L2_TUNER_ANALOG_TV;
1287 t->capability = V4L2_TUNER_CAP_NORM;
1288 t->rangehigh = 0xffffffffUL;
1289 t->signal = 0xffff; /* LOCKED */
1294 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1296 struct cx231xx_fh *fh = priv;
1297 struct cx231xx *dev = fh->dev;
1300 rc = check_dev(dev);
1307 mutex_lock(&dev->lock);
1308 call_all(dev, tuner, s_tuner, t);
1309 mutex_unlock(&dev->lock);
1314 static int vidioc_g_frequency(struct file *file, void *priv,
1315 struct v4l2_frequency *f)
1317 struct cx231xx_fh *fh = priv;
1318 struct cx231xx *dev = fh->dev;
1320 mutex_lock(&dev->lock);
1321 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1322 f->frequency = dev->ctl_freq;
1324 call_all(dev, tuner, g_frequency, f);
1326 mutex_unlock(&dev->lock);
1331 static int vidioc_s_frequency(struct file *file, void *priv,
1332 struct v4l2_frequency *f)
1334 struct cx231xx_fh *fh = priv;
1335 struct cx231xx *dev = fh->dev;
1338 rc = check_dev(dev);
1345 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1347 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1350 /* set pre channel change settings in DIF first */
1351 rc = cx231xx_tuner_pre_channel_change(dev);
1353 mutex_lock(&dev->lock);
1355 dev->ctl_freq = f->frequency;
1357 if (dev->tuner_type == TUNER_XC5000) {
1358 if (dev->cx231xx_set_analog_freq != NULL)
1359 dev->cx231xx_set_analog_freq(dev, f->frequency);
1361 call_all(dev, tuner, s_frequency, f);
1363 mutex_unlock(&dev->lock);
1365 /* set post channel change settings in DIF first */
1366 rc = cx231xx_tuner_post_channel_change(dev);
1368 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1373 #ifdef CONFIG_VIDEO_ADV_DEBUG
1376 -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1377 chip=<chip>[,min=<addr>,max=<addr>]
1378 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1379 -r, --set-register=type=<host/i2cdrv/i2caddr>,
1380 chip=<chip>,reg=<addr>,val=<val>
1381 set the register [VIDIOC_DBG_S_REGISTER]
1383 if type == host, then <chip> is the hosts chip ID (default 0)
1384 if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1385 if type == i2caddr, then <chip> is the 7-bit I2C address
1388 static int vidioc_g_register(struct file *file, void *priv,
1389 struct v4l2_dbg_register *reg)
1391 struct cx231xx_fh *fh = priv;
1392 struct cx231xx *dev = fh->dev;
1394 u8 value[4] = { 0, 0, 0, 0 };
1397 switch (reg->match.type) {
1398 case V4L2_CHIP_MATCH_HOST:
1399 switch (reg->match.addr) {
1400 case 0: /* Cx231xx - internal registers */
1401 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1402 (u16)reg->reg, value, 4);
1403 reg->val = value[0] | value[1] << 8 |
1404 value[2] << 16 | value[3] << 24;
1406 case 1: /* AFE - read byte */
1407 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1408 (u16)reg->reg, 2, &data, 1);
1409 reg->val = le32_to_cpu(data & 0xff);
1411 case 14: /* AFE - read dword */
1412 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1413 (u16)reg->reg, 2, &data, 4);
1414 reg->val = le32_to_cpu(data);
1416 case 2: /* Video Block - read byte */
1417 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1418 (u16)reg->reg, 2, &data, 1);
1419 reg->val = le32_to_cpu(data & 0xff);
1421 case 24: /* Video Block - read dword */
1422 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1423 (u16)reg->reg, 2, &data, 4);
1424 reg->val = le32_to_cpu(data);
1426 case 3: /* I2S block - read byte */
1427 ret = cx231xx_read_i2c_data(dev,
1428 I2S_BLK_DEVICE_ADDRESS,
1431 reg->val = le32_to_cpu(data & 0xff);
1433 case 34: /* I2S Block - read dword */
1435 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1436 (u16)reg->reg, 1, &data, 4);
1437 reg->val = le32_to_cpu(data);
1440 return ret < 0 ? ret : 0;
1442 case V4L2_CHIP_MATCH_I2C_DRIVER:
1443 call_all(dev, core, g_register, reg);
1445 case V4L2_CHIP_MATCH_I2C_ADDR:
1446 /* Not supported yet */
1449 if (!v4l2_chip_match_host(®->match))
1453 mutex_lock(&dev->lock);
1454 call_all(dev, core, g_register, reg);
1455 mutex_unlock(&dev->lock);
1460 static int vidioc_s_register(struct file *file, void *priv,
1461 struct v4l2_dbg_register *reg)
1463 struct cx231xx_fh *fh = priv;
1464 struct cx231xx *dev = fh->dev;
1468 u8 data[4] = { 0, 0, 0, 0 };
1470 buf = cpu_to_le64(reg->val);
1472 switch (reg->match.type) {
1473 case V4L2_CHIP_MATCH_HOST:
1475 value = (u32) buf & 0xffffffff;
1477 switch (reg->match.addr) {
1478 case 0: /* cx231xx internal registers */
1479 data[0] = (u8) value;
1480 data[1] = (u8) (value >> 8);
1481 data[2] = (u8) (value >> 16);
1482 data[3] = (u8) (value >> 24);
1483 ret = cx231xx_write_ctrl_reg(dev,
1485 (u16)reg->reg, data,
1488 case 1: /* AFE - read byte */
1489 ret = cx231xx_write_i2c_data(dev,
1494 case 14: /* AFE - read dword */
1495 ret = cx231xx_write_i2c_data(dev,
1500 case 2: /* Video Block - read byte */
1502 cx231xx_write_i2c_data(dev,
1503 VID_BLK_I2C_ADDRESS,
1507 case 24: /* Video Block - read dword */
1509 cx231xx_write_i2c_data(dev,
1510 VID_BLK_I2C_ADDRESS,
1514 case 3: /* I2S block - read byte */
1516 cx231xx_write_i2c_data(dev,
1517 I2S_BLK_DEVICE_ADDRESS,
1521 case 34: /* I2S block - read dword */
1523 cx231xx_write_i2c_data(dev,
1524 I2S_BLK_DEVICE_ADDRESS,
1530 return ret < 0 ? ret : 0;
1536 mutex_lock(&dev->lock);
1537 call_all(dev, core, s_register, reg);
1538 mutex_unlock(&dev->lock);
1544 static int vidioc_cropcap(struct file *file, void *priv,
1545 struct v4l2_cropcap *cc)
1547 struct cx231xx_fh *fh = priv;
1548 struct cx231xx *dev = fh->dev;
1550 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1553 cc->bounds.left = 0;
1555 cc->bounds.width = dev->width;
1556 cc->bounds.height = dev->height;
1557 cc->defrect = cc->bounds;
1558 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1559 cc->pixelaspect.denominator = 59;
1564 static int vidioc_streamon(struct file *file, void *priv,
1565 enum v4l2_buf_type type)
1567 struct cx231xx_fh *fh = priv;
1568 struct cx231xx *dev = fh->dev;
1571 rc = check_dev(dev);
1575 mutex_lock(&dev->lock);
1578 if (likely(rc >= 0))
1579 rc = videobuf_streamon(&fh->vb_vidq);
1581 call_all(dev, video, s_stream, 1);
1583 mutex_unlock(&dev->lock);
1588 static int vidioc_streamoff(struct file *file, void *priv,
1589 enum v4l2_buf_type type)
1591 struct cx231xx_fh *fh = priv;
1592 struct cx231xx *dev = fh->dev;
1595 rc = check_dev(dev);
1599 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1600 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1602 if (type != fh->type)
1605 mutex_lock(&dev->lock);
1607 cx25840_call(dev, video, s_stream, 0);
1609 videobuf_streamoff(&fh->vb_vidq);
1612 mutex_unlock(&dev->lock);
1617 static int vidioc_querycap(struct file *file, void *priv,
1618 struct v4l2_capability *cap)
1620 struct cx231xx_fh *fh = priv;
1621 struct cx231xx *dev = fh->dev;
1623 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1624 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1625 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1627 cap->version = CX231XX_VERSION_CODE;
1629 cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1631 V4L2_CAP_SLICED_VBI_CAPTURE |
1633 V4L2_CAP_VIDEO_CAPTURE |
1635 V4L2_CAP_READWRITE |
1638 if (dev->tuner_type != TUNER_ABSENT)
1639 cap->capabilities |= V4L2_CAP_TUNER;
1644 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1645 struct v4l2_fmtdesc *f)
1647 if (unlikely(f->index >= ARRAY_SIZE(format)))
1650 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1651 f->pixelformat = format[f->index].fourcc;
1656 /* Sliced VBI ioctls */
1657 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1658 struct v4l2_format *f)
1660 struct cx231xx_fh *fh = priv;
1661 struct cx231xx *dev = fh->dev;
1664 rc = check_dev(dev);
1668 mutex_lock(&dev->lock);
1670 f->fmt.sliced.service_set = 0;
1672 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1674 if (f->fmt.sliced.service_set == 0)
1677 mutex_unlock(&dev->lock);
1681 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1682 struct v4l2_format *f)
1684 struct cx231xx_fh *fh = priv;
1685 struct cx231xx *dev = fh->dev;
1688 rc = check_dev(dev);
1692 mutex_lock(&dev->lock);
1693 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1694 mutex_unlock(&dev->lock);
1696 if (f->fmt.sliced.service_set == 0)
1702 /* RAW VBI ioctls */
1704 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1705 struct v4l2_format *f)
1707 struct cx231xx_fh *fh = priv;
1708 struct cx231xx *dev = fh->dev;
1710 f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1711 35468950 : 28636363;
1712 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1713 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1714 f->fmt.vbi.offset = 64 * 4;
1715 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1716 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1717 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1718 PAL_VBI_LINES : NTSC_VBI_LINES;
1719 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1720 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1721 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1727 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1728 struct v4l2_format *f)
1730 struct cx231xx_fh *fh = priv;
1731 struct cx231xx *dev = fh->dev;
1733 if (dev->vbi_stream_on && !fh->stream_on) {
1734 cx231xx_errdev("%s device in use by another fh\n", __func__);
1738 f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1739 f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1740 35468950 : 28636363;
1741 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1742 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1743 f->fmt.vbi.offset = 244;
1744 f->fmt.vbi.flags = 0;
1745 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1746 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1747 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1748 PAL_VBI_LINES : NTSC_VBI_LINES;
1749 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1750 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1751 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1757 static int vidioc_reqbufs(struct file *file, void *priv,
1758 struct v4l2_requestbuffers *rb)
1760 struct cx231xx_fh *fh = priv;
1761 struct cx231xx *dev = fh->dev;
1764 rc = check_dev(dev);
1768 return videobuf_reqbufs(&fh->vb_vidq, rb);
1771 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1773 struct cx231xx_fh *fh = priv;
1774 struct cx231xx *dev = fh->dev;
1777 rc = check_dev(dev);
1781 return videobuf_querybuf(&fh->vb_vidq, b);
1784 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1786 struct cx231xx_fh *fh = priv;
1787 struct cx231xx *dev = fh->dev;
1790 rc = check_dev(dev);
1794 return videobuf_qbuf(&fh->vb_vidq, b);
1797 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1799 struct cx231xx_fh *fh = priv;
1800 struct cx231xx *dev = fh->dev;
1803 rc = check_dev(dev);
1807 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1810 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1811 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
1813 struct cx231xx_fh *fh = priv;
1815 return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
1819 /* ----------------------------------------------------------- */
1820 /* RADIO ESPECIFIC IOCTLS */
1821 /* ----------------------------------------------------------- */
1823 static int radio_querycap(struct file *file, void *priv,
1824 struct v4l2_capability *cap)
1826 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1828 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1829 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1830 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1832 cap->version = CX231XX_VERSION_CODE;
1833 cap->capabilities = V4L2_CAP_TUNER;
1837 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1839 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1841 if (unlikely(t->index > 0))
1844 strcpy(t->name, "Radio");
1845 t->type = V4L2_TUNER_RADIO;
1847 mutex_lock(&dev->lock);
1848 call_all(dev, tuner, s_tuner, t);
1849 mutex_unlock(&dev->lock);
1854 static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1858 strcpy(i->name, "Radio");
1859 i->type = V4L2_INPUT_TYPE_TUNER;
1864 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1866 if (unlikely(a->index))
1869 strcpy(a->name, "Radio");
1873 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1875 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1880 mutex_lock(&dev->lock);
1881 call_all(dev, tuner, s_tuner, t);
1882 mutex_unlock(&dev->lock);
1887 static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
1892 static int radio_s_input(struct file *file, void *fh, unsigned int i)
1897 static int radio_queryctrl(struct file *file, void *priv,
1898 struct v4l2_queryctrl *c)
1902 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
1904 if (c->id == V4L2_CID_AUDIO_MUTE) {
1905 for (i = 0; i < CX231XX_CTLS; i++) {
1906 if (cx231xx_ctls[i].v.id == c->id)
1909 if (i == CX231XX_CTLS)
1911 *c = cx231xx_ctls[i].v;
1918 * cx231xx_v4l2_open()
1919 * inits the device and starts isoc transfer
1921 static int cx231xx_v4l2_open(struct file *filp)
1923 int errCode = 0, radio = 0;
1924 struct video_device *vdev = video_devdata(filp);
1925 struct cx231xx *dev = video_drvdata(filp);
1926 struct cx231xx_fh *fh;
1927 enum v4l2_buf_type fh_type = 0;
1929 switch (vdev->vfl_type) {
1930 case VFL_TYPE_GRABBER:
1931 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1934 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
1936 case VFL_TYPE_RADIO:
1941 mutex_lock(&dev->lock);
1943 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
1944 video_device_node_name(vdev), v4l2_type_names[fh_type],
1948 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1951 ("Device locked on digital mode. Can't open analog\n");
1952 mutex_unlock(&dev->lock);
1957 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1959 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1960 mutex_unlock(&dev->lock);
1966 filp->private_data = fh;
1968 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1969 dev->width = norm_maxw(dev);
1970 dev->height = norm_maxh(dev);
1974 /* Power up in Analog TV mode */
1975 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1978 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1980 cx231xx_resolution_set(dev);
1982 /* set video alternate setting */
1983 cx231xx_set_video_alternate(dev);
1985 /* Needed, since GPIO might have disabled power of
1987 cx231xx_config_i2c(dev);
1989 /* device needs to be initialized before isoc transfer */
1990 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1991 video_mux(dev, dev->video_input);
1995 cx231xx_videodbg("video_open: setting radio device\n");
1997 /* cx231xx_start_radio(dev); */
1999 call_all(dev, tuner, s_radio);
2004 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2005 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2006 NULL, &dev->video_mode.slock,
2007 fh->type, V4L2_FIELD_INTERLACED,
2008 sizeof(struct cx231xx_buffer), fh);
2009 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2010 /* Set the required alternate setting VBI interface works in
2012 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2014 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2015 NULL, &dev->vbi_mode.slock,
2016 fh->type, V4L2_FIELD_SEQ_TB,
2017 sizeof(struct cx231xx_buffer), fh);
2020 mutex_unlock(&dev->lock);
2026 * cx231xx_realease_resources()
2027 * unregisters the v4l2,i2c and usb devices
2028 * called when the device gets disconected or at module unload
2030 void cx231xx_release_analog_resources(struct cx231xx *dev)
2033 /*FIXME: I2C IR should be disconnected */
2035 if (dev->radio_dev) {
2036 if (video_is_registered(dev->radio_dev))
2037 video_unregister_device(dev->radio_dev);
2039 video_device_release(dev->radio_dev);
2040 dev->radio_dev = NULL;
2043 cx231xx_info("V4L2 device %s deregistered\n",
2044 video_device_node_name(dev->vbi_dev));
2045 if (video_is_registered(dev->vbi_dev))
2046 video_unregister_device(dev->vbi_dev);
2048 video_device_release(dev->vbi_dev);
2049 dev->vbi_dev = NULL;
2052 cx231xx_info("V4L2 device %s deregistered\n",
2053 video_device_node_name(dev->vdev));
2054 if (video_is_registered(dev->vdev))
2055 video_unregister_device(dev->vdev);
2057 video_device_release(dev->vdev);
2063 * cx231xx_v4l2_close()
2064 * stops streaming and deallocates all resources allocated by the v4l2
2067 static int cx231xx_v4l2_close(struct file *filp)
2069 struct cx231xx_fh *fh = filp->private_data;
2070 struct cx231xx *dev = fh->dev;
2072 cx231xx_videodbg("users=%d\n", dev->users);
2074 mutex_lock(&dev->lock);
2079 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2080 videobuf_stop(&fh->vb_vidq);
2081 videobuf_mmap_free(&fh->vb_vidq);
2083 /* the device is already disconnect,
2084 free the remaining resources */
2085 if (dev->state & DEV_DISCONNECTED) {
2086 cx231xx_release_resources(dev);
2087 mutex_unlock(&dev->lock);
2092 /* do this before setting alternate! */
2093 cx231xx_uninit_vbi_isoc(dev);
2095 /* set alternate 0 */
2096 if (!dev->vbi_or_sliced_cc_mode)
2097 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2099 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2103 wake_up_interruptible_nr(&dev->open, 1);
2104 mutex_unlock(&dev->lock);
2108 if (dev->users == 1) {
2109 videobuf_stop(&fh->vb_vidq);
2110 videobuf_mmap_free(&fh->vb_vidq);
2112 /* the device is already disconnect,
2113 free the remaining resources */
2114 if (dev->state & DEV_DISCONNECTED) {
2115 cx231xx_release_resources(dev);
2116 mutex_unlock(&dev->lock);
2121 /* Save some power by putting tuner to sleep */
2122 call_all(dev, core, s_power, 0);
2124 /* do this before setting alternate! */
2125 cx231xx_uninit_isoc(dev);
2126 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2128 /* set alternate 0 */
2129 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2133 wake_up_interruptible_nr(&dev->open, 1);
2134 mutex_unlock(&dev->lock);
2139 * cx231xx_v4l2_read()
2140 * will allocate buffers when called for the first time
2143 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2146 struct cx231xx_fh *fh = filp->private_data;
2147 struct cx231xx *dev = fh->dev;
2150 rc = check_dev(dev);
2154 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2155 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2156 mutex_lock(&dev->lock);
2158 mutex_unlock(&dev->lock);
2160 if (unlikely(rc < 0))
2163 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2164 filp->f_flags & O_NONBLOCK);
2170 * cx231xx_v4l2_poll()
2171 * will allocate buffers when called for the first time
2173 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table * wait)
2175 struct cx231xx_fh *fh = filp->private_data;
2176 struct cx231xx *dev = fh->dev;
2179 rc = check_dev(dev);
2183 mutex_lock(&dev->lock);
2185 mutex_unlock(&dev->lock);
2187 if (unlikely(rc < 0))
2190 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2191 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2192 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2198 * cx231xx_v4l2_mmap()
2200 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2202 struct cx231xx_fh *fh = filp->private_data;
2203 struct cx231xx *dev = fh->dev;
2206 rc = check_dev(dev);
2210 mutex_lock(&dev->lock);
2212 mutex_unlock(&dev->lock);
2214 if (unlikely(rc < 0))
2217 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2219 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2220 (unsigned long)vma->vm_start,
2221 (unsigned long)vma->vm_end -
2222 (unsigned long)vma->vm_start, rc);
2227 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2228 .owner = THIS_MODULE,
2229 .open = cx231xx_v4l2_open,
2230 .release = cx231xx_v4l2_close,
2231 .read = cx231xx_v4l2_read,
2232 .poll = cx231xx_v4l2_poll,
2233 .mmap = cx231xx_v4l2_mmap,
2234 .ioctl = video_ioctl2,
2237 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2238 .vidioc_querycap = vidioc_querycap,
2239 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2240 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2241 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2242 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2243 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2244 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2245 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2246 .vidioc_g_audio = vidioc_g_audio,
2247 .vidioc_s_audio = vidioc_s_audio,
2248 .vidioc_cropcap = vidioc_cropcap,
2249 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
2250 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2251 .vidioc_reqbufs = vidioc_reqbufs,
2252 .vidioc_querybuf = vidioc_querybuf,
2253 .vidioc_qbuf = vidioc_qbuf,
2254 .vidioc_dqbuf = vidioc_dqbuf,
2255 .vidioc_s_std = vidioc_s_std,
2256 .vidioc_g_std = vidioc_g_std,
2257 .vidioc_enum_input = vidioc_enum_input,
2258 .vidioc_g_input = vidioc_g_input,
2259 .vidioc_s_input = vidioc_s_input,
2260 .vidioc_queryctrl = vidioc_queryctrl,
2261 .vidioc_g_ctrl = vidioc_g_ctrl,
2262 .vidioc_s_ctrl = vidioc_s_ctrl,
2263 .vidioc_streamon = vidioc_streamon,
2264 .vidioc_streamoff = vidioc_streamoff,
2265 .vidioc_g_tuner = vidioc_g_tuner,
2266 .vidioc_s_tuner = vidioc_s_tuner,
2267 .vidioc_g_frequency = vidioc_g_frequency,
2268 .vidioc_s_frequency = vidioc_s_frequency,
2269 #ifdef CONFIG_VIDEO_ADV_DEBUG
2270 .vidioc_g_register = vidioc_g_register,
2271 .vidioc_s_register = vidioc_s_register,
2273 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2274 .vidiocgmbuf = vidiocgmbuf,
2278 static struct video_device cx231xx_vbi_template;
2280 static const struct video_device cx231xx_video_template = {
2281 .fops = &cx231xx_v4l_fops,
2282 .release = video_device_release,
2283 .ioctl_ops = &video_ioctl_ops,
2284 .tvnorms = V4L2_STD_ALL,
2285 .current_norm = V4L2_STD_PAL,
2288 static const struct v4l2_file_operations radio_fops = {
2289 .owner = THIS_MODULE,
2290 .open = cx231xx_v4l2_open,
2291 .release = cx231xx_v4l2_close,
2292 .ioctl = video_ioctl2,
2295 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2296 .vidioc_querycap = radio_querycap,
2297 .vidioc_g_tuner = radio_g_tuner,
2298 .vidioc_enum_input = radio_enum_input,
2299 .vidioc_g_audio = radio_g_audio,
2300 .vidioc_s_tuner = radio_s_tuner,
2301 .vidioc_s_audio = radio_s_audio,
2302 .vidioc_s_input = radio_s_input,
2303 .vidioc_queryctrl = radio_queryctrl,
2304 .vidioc_g_ctrl = vidioc_g_ctrl,
2305 .vidioc_s_ctrl = vidioc_s_ctrl,
2306 .vidioc_g_frequency = vidioc_g_frequency,
2307 .vidioc_s_frequency = vidioc_s_frequency,
2308 #ifdef CONFIG_VIDEO_ADV_DEBUG
2309 .vidioc_g_register = vidioc_g_register,
2310 .vidioc_s_register = vidioc_s_register,
2314 static struct video_device cx231xx_radio_template = {
2315 .name = "cx231xx-radio",
2316 .fops = &radio_fops,
2317 .ioctl_ops = &radio_ioctl_ops,
2320 /******************************** usb interface ******************************/
2322 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2323 const struct video_device
2324 *template, const char *type_name)
2326 struct video_device *vfd;
2328 vfd = video_device_alloc();
2333 vfd->v4l2_dev = &dev->v4l2_dev;
2334 vfd->release = video_device_release;
2335 vfd->debug = video_debug;
2337 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2339 video_set_drvdata(vfd, dev);
2343 int cx231xx_register_analog_devices(struct cx231xx *dev)
2347 cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
2349 (CX231XX_VERSION_CODE >> 16) & 0xff,
2350 (CX231XX_VERSION_CODE >> 8) & 0xff,
2351 CX231XX_VERSION_CODE & 0xff);
2353 /* set default norm */
2354 /*dev->norm = cx231xx_video_template.current_norm; */
2355 dev->width = norm_maxw(dev);
2356 dev->height = norm_maxh(dev);
2357 dev->interlaced = 0;
2361 /* Analog specific initialization */
2362 dev->format = &format[0];
2363 /* video_mux(dev, dev->video_input); */
2365 /* Audio defaults */
2369 /* enable vbi capturing */
2370 /* write code here... */
2372 /* allocate and fill video video_device struct */
2373 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2375 cx231xx_errdev("cannot allocate video_device.\n");
2379 /* register v4l2 video video_device */
2380 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2381 video_nr[dev->devno]);
2383 cx231xx_errdev("unable to register video device (error=%i).\n",
2388 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2389 dev->name, video_device_node_name(dev->vdev));
2391 /* Initialize VBI template */
2392 memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2393 sizeof(cx231xx_vbi_template));
2394 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2396 /* Allocate and fill vbi video_device struct */
2397 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2399 /* register v4l2 vbi video_device */
2400 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2401 vbi_nr[dev->devno]);
2403 cx231xx_errdev("unable to register vbi device\n");
2407 cx231xx_info("%s/0: registered device %s\n",
2408 dev->name, video_device_node_name(dev->vbi_dev));
2410 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2411 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2413 if (!dev->radio_dev) {
2414 cx231xx_errdev("cannot allocate video_device.\n");
2417 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2418 radio_nr[dev->devno]);
2420 cx231xx_errdev("can't register radio device\n");
2423 cx231xx_info("Registered radio device as %s\n",
2424 video_device_node_name(dev->radio_dev));
2427 cx231xx_info("V4L2 device registered as %s and %s\n",
2428 video_device_node_name(dev->vdev),
2429 video_device_node_name(dev->vbi_dev));