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>
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-chip-ident.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_CODE KERNEL_VERSION(0, 0, 1)
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");
73 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
74 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
75 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
76 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
78 module_param_array(card, int, NULL, 0444);
79 module_param_array(video_nr, int, NULL, 0444);
80 module_param_array(vbi_nr, int, NULL, 0444);
81 module_param_array(radio_nr, int, NULL, 0444);
83 MODULE_PARM_DESC(card, "card type");
84 MODULE_PARM_DESC(video_nr, "video device numbers");
85 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
86 MODULE_PARM_DESC(radio_nr, "radio device numbers");
88 static unsigned int video_debug;
89 module_param(video_debug, int, 0644);
90 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
92 /* supported video standards */
93 static struct cx231xx_fmt format[] = {
95 .name = "16bpp YUY2, 4:2:2, packed",
96 .fourcc = V4L2_PIX_FMT_YUYV,
102 /* supported controls */
103 /* Common to all boards */
105 /* ------------------------------------------------------------------- */
107 static const struct v4l2_queryctrl no_ctl = {
109 .flags = V4L2_CTRL_FLAG_DISABLED,
112 static struct cx231xx_ctrl cx231xx_ctls[] = {
116 .id = V4L2_CID_BRIGHTNESS,
117 .name = "Brightness",
121 .default_value = 0x7f,
122 .type = V4L2_CTRL_TYPE_INTEGER,
130 .id = V4L2_CID_CONTRAST,
135 .default_value = 0x3f,
136 .type = V4L2_CTRL_TYPE_INTEGER,
149 .default_value = 0x7f,
150 .type = V4L2_CTRL_TYPE_INTEGER,
157 /* strictly, this only describes only U saturation.
158 * V saturation is handled specially through code.
161 .id = V4L2_CID_SATURATION,
162 .name = "Saturation",
166 .default_value = 0x7f,
167 .type = V4L2_CTRL_TYPE_INTEGER,
176 .id = V4L2_CID_AUDIO_MUTE,
181 .type = V4L2_CTRL_TYPE_BOOLEAN,
184 .mask = (0x1f << 24),
188 .id = V4L2_CID_AUDIO_VOLUME,
193 .default_value = 0x3f,
194 .type = V4L2_CTRL_TYPE_INTEGER,
196 .reg = PATH1_VOL_CTL,
201 static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
203 static const u32 cx231xx_user_ctrls[] = {
209 V4L2_CID_AUDIO_VOLUME,
211 V4L2_CID_AUDIO_BALANCE,
217 static const u32 *ctrl_classes[] = {
222 /* ------------------------------------------------------------------
223 Video buffer and parser functions
224 ------------------------------------------------------------------*/
227 * Announces that a buffer were filled and request the next
229 static inline void buffer_filled(struct cx231xx *dev,
230 struct cx231xx_dmaqueue *dma_q,
231 struct cx231xx_buffer *buf)
233 /* Advice that buffer was filled */
234 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
235 buf->vb.state = VIDEOBUF_DONE;
236 buf->vb.field_count++;
237 do_gettimeofday(&buf->vb.ts);
239 dev->video_mode.isoc_ctl.buf = NULL;
241 list_del(&buf->vb.queue);
242 wake_up(&buf->vb.done);
245 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
247 char *errmsg = "Unknown";
251 errmsg = "unlinked synchronuously";
254 errmsg = "unlinked asynchronuously";
257 errmsg = "Buffer error (overrun)";
260 errmsg = "Stalled (device not responding)";
263 errmsg = "Babble (bad cable?)";
266 errmsg = "Bit-stuff error (bad cable?)";
269 errmsg = "CRC/Timeout (could be anything)";
272 errmsg = "Device does not respond";
276 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
278 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
279 packet, status, errmsg);
284 * video-buf generic routine to get the next available buffer
286 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
287 struct cx231xx_buffer **buf)
289 struct cx231xx_video_mode *vmode =
290 container_of(dma_q, struct cx231xx_video_mode, vidq);
291 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
295 if (list_empty(&dma_q->active)) {
296 cx231xx_isocdbg("No active queue to serve\n");
297 dev->video_mode.isoc_ctl.buf = NULL;
302 /* Get the next buffer */
303 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
305 /* Cleans up buffer - Usefull for testing for frame/URB loss */
306 outp = videobuf_to_vmalloc(&(*buf)->vb);
307 memset(outp, 0, (*buf)->vb.size);
309 dev->video_mode.isoc_ctl.buf = *buf;
315 * Controls the isoc copy of each urb packet
317 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
319 struct cx231xx_buffer *buf;
320 struct cx231xx_dmaqueue *dma_q = urb->context;
321 unsigned char *outp = NULL;
323 unsigned char *p_buffer;
324 u32 bytes_parsed = 0, buffer_size = 0;
330 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
333 if (urb->status < 0) {
334 print_err_status(dev, -1, urb->status);
335 if (urb->status == -ENOENT)
339 buf = dev->video_mode.isoc_ctl.buf;
341 outp = videobuf_to_vmalloc(&buf->vb);
343 for (i = 0; i < urb->number_of_packets; i++) {
344 int status = urb->iso_frame_desc[i].status;
347 print_err_status(dev, i, status);
348 if (urb->iso_frame_desc[i].status != -EPROTO)
352 if (urb->iso_frame_desc[i].actual_length <= 0) {
353 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
356 if (urb->iso_frame_desc[i].actual_length >
357 dev->video_mode.max_pkt_size) {
358 cx231xx_isocdbg("packet bigger than packet size");
362 /* get buffer pointer and length */
363 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
364 buffer_size = urb->iso_frame_desc[i].actual_length;
367 if (dma_q->is_partial_line) {
368 /* Handle the case of a partial line */
369 sav_eav = dma_q->last_sav;
371 /* Check for a SAV/EAV overlapping
372 the buffer boundary */
374 cx231xx_find_boundary_SAV_EAV(p_buffer,
380 /* Get the first line if we have some portion of an SAV/EAV from
381 the last buffer or a partial line */
383 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
384 sav_eav, /* SAV/EAV */
385 p_buffer + bytes_parsed, /* p_buffer */
386 buffer_size - bytes_parsed);/* buf size */
389 /* Now parse data that is completely in this buffer */
390 /* dma_q->is_partial_line = 0; */
392 while (bytes_parsed < buffer_size) {
395 sav_eav = cx231xx_find_next_SAV_EAV(
396 p_buffer + bytes_parsed, /* p_buffer */
397 buffer_size - bytes_parsed, /* buf size */
398 &bytes_used);/* bytes used to get SAV/EAV */
400 bytes_parsed += bytes_used;
403 if (sav_eav && (bytes_parsed < buffer_size)) {
404 bytes_parsed += cx231xx_get_video_line(dev,
405 dma_q, sav_eav, /* SAV/EAV */
406 p_buffer + bytes_parsed,/* p_buffer */
407 buffer_size - bytes_parsed);/*buf size*/
411 /* Save the last four bytes of the buffer so we can check the
412 buffer boundary condition next time */
413 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
420 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
424 u8 boundary_bytes[8];
429 /* Create an array of the last 4 bytes of the last buffer and the first
430 4 bytes of the current buffer. */
432 memcpy(boundary_bytes, partial_buf, 4);
433 memcpy(boundary_bytes + 4, p_buffer, 4);
435 /* Check for the SAV/EAV in the boundary buffer */
436 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
440 /* found a boundary SAV/EAV. Updates the bytes used to reflect
441 only those used in the new buffer */
442 *p_bytes_used = bytes_used - 4;
448 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
454 * Don't search if the buffer size is less than 4. It causes a page
455 * fault since buffer_size - 4 evaluates to a large number in that
458 if (buffer_size < 4) {
459 *p_bytes_used = buffer_size;
463 for (i = 0; i < (buffer_size - 3); i++) {
465 if ((p_buffer[i] == 0xFF) &&
466 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
468 *p_bytes_used = i + 4;
469 sav_eav = p_buffer[i + 3];
474 *p_bytes_used = buffer_size;
478 u32 cx231xx_get_video_line(struct cx231xx *dev,
479 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
480 u8 *p_buffer, u32 buffer_size)
482 u32 bytes_copied = 0;
483 int current_field = -1;
486 case SAV_ACTIVE_VIDEO_FIELD1:
487 /* looking for skipped line which occurred in PAL 720x480 mode.
488 In this case, there will be no active data contained
489 between the SAV and EAV */
490 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
491 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
492 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
493 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
494 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
495 (p_buffer[3] == EAV_VBLANK_FIELD2)))
500 case SAV_ACTIVE_VIDEO_FIELD2:
501 /* looking for skipped line which occurred in PAL 720x480 mode.
502 In this case, there will be no active data contained between
504 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
505 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
506 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
507 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
508 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
509 (p_buffer[3] == EAV_VBLANK_FIELD2)))
515 dma_q->last_sav = sav_eav;
517 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
518 buffer_size, current_field);
523 u32 cx231xx_copy_video_line(struct cx231xx *dev,
524 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
525 u32 length, int field_number)
528 struct cx231xx_buffer *buf;
529 u32 _line_size = dev->width * 2;
531 if (dma_q->current_field != field_number)
532 cx231xx_reset_video_buffer(dev, dma_q);
534 /* get the buffer pointer */
535 buf = dev->video_mode.isoc_ctl.buf;
537 /* Remember the field number for next time */
538 dma_q->current_field = field_number;
540 bytes_to_copy = dma_q->bytes_left_in_line;
541 if (bytes_to_copy > length)
542 bytes_to_copy = length;
544 if (dma_q->lines_completed >= dma_q->lines_per_field) {
545 dma_q->bytes_left_in_line -= bytes_to_copy;
546 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
551 dma_q->is_partial_line = 1;
553 /* If we don't have a buffer, just return the number of bytes we would
554 have copied if we had a buffer. */
556 dma_q->bytes_left_in_line -= bytes_to_copy;
557 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
559 return bytes_to_copy;
562 /* copy the data to video buffer */
563 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
565 dma_q->pos += bytes_to_copy;
566 dma_q->bytes_left_in_line -= bytes_to_copy;
568 if (dma_q->bytes_left_in_line == 0) {
569 dma_q->bytes_left_in_line = _line_size;
570 dma_q->lines_completed++;
571 dma_q->is_partial_line = 0;
573 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
574 buffer_filled(dev, dma_q, buf);
578 dma_q->lines_completed = 0;
582 return bytes_to_copy;
585 void cx231xx_reset_video_buffer(struct cx231xx *dev,
586 struct cx231xx_dmaqueue *dma_q)
588 struct cx231xx_buffer *buf;
590 /* handle the switch from field 1 to field 2 */
591 if (dma_q->current_field == 1) {
592 if (dma_q->lines_completed >= dma_q->lines_per_field)
593 dma_q->field1_done = 1;
595 dma_q->field1_done = 0;
598 buf = dev->video_mode.isoc_ctl.buf;
602 /* first try to get the buffer */
603 get_next_buf(dma_q, &buf);
606 outp = videobuf_to_vmalloc(&buf->vb);
609 dma_q->field1_done = 0;
610 dma_q->current_field = -1;
613 /* reset the counters */
614 dma_q->bytes_left_in_line = dev->width << 1;
615 dma_q->lines_completed = 0;
618 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
619 u8 *p_buffer, u32 bytes_to_copy)
621 u8 *p_out_buffer = NULL;
622 u32 current_line_bytes_copied = 0;
623 struct cx231xx_buffer *buf;
624 u32 _line_size = dev->width << 1;
628 buf = dev->video_mode.isoc_ctl.buf;
633 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
635 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
637 /* Offset field 2 one line from the top of the buffer */
638 offset = (dma_q->current_field == 1) ? 0 : _line_size;
640 /* Offset for field 2 */
641 startwrite = p_out_buffer + offset;
643 /* lines already completed in the current field */
644 startwrite += (dma_q->lines_completed * _line_size * 2);
646 /* bytes already completed in the current line */
647 startwrite += current_line_bytes_copied;
649 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
650 bytes_to_copy : dma_q->bytes_left_in_line;
652 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
655 /* The below copies the UYVY data straight into video buffer */
656 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
661 void cx231xx_swab(u16 *from, u16 *to, u16 len)
668 for (i = 0; i < len / 2; i++)
669 to[i] = (from[i] << 8) | (from[i] >> 8);
672 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
674 u8 buffer_complete = 0;
676 /* Dual field stream */
677 buffer_complete = ((dma_q->current_field == 2) &&
678 (dma_q->lines_completed >= dma_q->lines_per_field) &&
681 return buffer_complete;
684 /* ------------------------------------------------------------------
686 ------------------------------------------------------------------*/
689 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
691 struct cx231xx_fh *fh = vq->priv_data;
692 struct cx231xx *dev = fh->dev;
693 struct v4l2_frequency f;
695 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
697 *count = CX231XX_DEF_BUF;
699 if (*count < CX231XX_MIN_BUF)
700 *count = CX231XX_MIN_BUF;
702 /* Ask tuner to go to analog mode */
703 memset(&f, 0, sizeof(f));
704 f.frequency = dev->ctl_freq;
705 f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
707 call_all(dev, tuner, s_frequency, &f);
712 /* This is called *without* dev->slock held; please keep it that way */
713 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
715 struct cx231xx_fh *fh = vq->priv_data;
716 struct cx231xx *dev = fh->dev;
717 unsigned long flags = 0;
722 /* We used to wait for the buffer to finish here, but this didn't work
723 because, as we were keeping the state as VIDEOBUF_QUEUED,
724 videobuf_queue_cancel marked it as finished for us.
725 (Also, it could wedge forever if the hardware was misconfigured.)
727 This should be safe; by the time we get here, the buffer isn't
728 queued anymore. If we ever start marking the buffers as
729 VIDEOBUF_ACTIVE, it won't be, though.
731 spin_lock_irqsave(&dev->video_mode.slock, flags);
732 if (dev->video_mode.isoc_ctl.buf == buf)
733 dev->video_mode.isoc_ctl.buf = NULL;
734 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
736 videobuf_vmalloc_free(&buf->vb);
737 buf->vb.state = VIDEOBUF_NEEDS_INIT;
741 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
742 enum v4l2_field field)
744 struct cx231xx_fh *fh = vq->priv_data;
745 struct cx231xx_buffer *buf =
746 container_of(vb, struct cx231xx_buffer, vb);
747 struct cx231xx *dev = fh->dev;
748 int rc = 0, urb_init = 0;
750 /* The only currently supported format is 16 bits/pixel */
751 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
753 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
756 buf->vb.width = dev->width;
757 buf->vb.height = dev->height;
758 buf->vb.field = field;
760 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
761 rc = videobuf_iolock(vq, &buf->vb, NULL);
766 if (!dev->video_mode.isoc_ctl.num_bufs)
770 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
772 dev->video_mode.max_pkt_size,
778 buf->vb.state = VIDEOBUF_PREPARED;
782 free_buffer(vq, buf);
786 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
788 struct cx231xx_buffer *buf =
789 container_of(vb, struct cx231xx_buffer, vb);
790 struct cx231xx_fh *fh = vq->priv_data;
791 struct cx231xx *dev = fh->dev;
792 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
794 buf->vb.state = VIDEOBUF_QUEUED;
795 list_add_tail(&buf->vb.queue, &vidq->active);
799 static void buffer_release(struct videobuf_queue *vq,
800 struct videobuf_buffer *vb)
802 struct cx231xx_buffer *buf =
803 container_of(vb, struct cx231xx_buffer, vb);
804 struct cx231xx_fh *fh = vq->priv_data;
805 struct cx231xx *dev = (struct cx231xx *)fh->dev;
807 cx231xx_isocdbg("cx231xx: called buffer_release\n");
809 free_buffer(vq, buf);
812 static struct videobuf_queue_ops cx231xx_video_qops = {
813 .buf_setup = buffer_setup,
814 .buf_prepare = buffer_prepare,
815 .buf_queue = buffer_queue,
816 .buf_release = buffer_release,
819 /********************* v4l2 interface **************************************/
821 void video_mux(struct cx231xx *dev, int index)
823 dev->video_input = index;
824 dev->ctl_ainput = INPUT(index)->amux;
826 cx231xx_set_video_input_mux(dev, index);
828 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
830 cx231xx_set_audio_input(dev, dev->ctl_ainput);
832 cx231xx_info("video_mux : %d\n", index);
834 /* do mode control overrides if required */
835 cx231xx_do_mode_ctrl_overrides(dev);
838 /* Usage lock check functions */
839 static int res_get(struct cx231xx_fh *fh)
841 struct cx231xx *dev = fh->dev;
844 /* This instance already has stream_on */
848 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
852 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
853 if (dev->vbi_stream_on)
855 dev->vbi_stream_on = 1;
864 static int res_check(struct cx231xx_fh *fh)
866 return fh->stream_on;
869 static void res_free(struct cx231xx_fh *fh)
871 struct cx231xx *dev = fh->dev;
875 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
877 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
878 dev->vbi_stream_on = 0;
881 static int check_dev(struct cx231xx *dev)
883 if (dev->state & DEV_DISCONNECTED) {
884 cx231xx_errdev("v4l2 ioctl: device not present\n");
888 if (dev->state & DEV_MISCONFIGURED) {
889 cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
890 "close and open it again\n");
896 void get_scale(struct cx231xx *dev,
897 unsigned int width, unsigned int height,
898 unsigned int *hscale, unsigned int *vscale)
900 unsigned int maxw = norm_maxw(dev);
901 unsigned int maxh = norm_maxh(dev);
903 *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
904 if (*hscale >= 0x4000)
907 *vscale = (((unsigned long)maxh) << 12) / height - 4096L;
908 if (*vscale >= 0x4000)
911 dev->hscale = *hscale;
912 dev->vscale = *vscale;
916 /* ------------------------------------------------------------------
917 IOCTL vidioc handling
918 ------------------------------------------------------------------*/
920 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
921 struct v4l2_format *f)
923 struct cx231xx_fh *fh = priv;
924 struct cx231xx *dev = fh->dev;
926 mutex_lock(&dev->lock);
928 f->fmt.pix.width = dev->width;
929 f->fmt.pix.height = dev->height;
930 f->fmt.pix.pixelformat = dev->format->fourcc;;
931 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;;
932 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
933 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
935 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
937 mutex_unlock(&dev->lock);
942 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
946 for (i = 0; i < ARRAY_SIZE(format); i++)
947 if (format[i].fourcc == fourcc)
953 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
954 struct v4l2_format *f)
956 struct cx231xx_fh *fh = priv;
957 struct cx231xx *dev = fh->dev;
958 unsigned int width = f->fmt.pix.width;
959 unsigned int height = f->fmt.pix.height;
960 unsigned int maxw = norm_maxw(dev);
961 unsigned int maxh = norm_maxh(dev);
962 unsigned int hscale, vscale;
963 struct cx231xx_fmt *fmt;
965 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
967 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
968 f->fmt.pix.pixelformat);
972 /* width must even because of the YUYV format
973 height must be even because of interlacing */
974 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
976 get_scale(dev, width, height, &hscale, &vscale);
978 width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
979 height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
981 f->fmt.pix.width = width;
982 f->fmt.pix.height = height;
983 f->fmt.pix.pixelformat = fmt->fourcc;
984 f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
985 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
986 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
987 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
992 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
993 struct v4l2_format *f)
995 struct cx231xx_fh *fh = priv;
996 struct cx231xx *dev = fh->dev;
998 struct cx231xx_fmt *fmt;
1000 rc = check_dev(dev);
1004 mutex_lock(&dev->lock);
1006 vidioc_try_fmt_vid_cap(file, priv, f);
1008 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1014 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1015 cx231xx_errdev("%s queue busy\n", __func__);
1020 if (dev->stream_on && !fh->stream_on) {
1021 cx231xx_errdev("%s device in use by another fh\n", __func__);
1026 /* set new image size */
1027 dev->width = f->fmt.pix.width;
1028 dev->height = f->fmt.pix.height;
1030 get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1032 call_all(dev, video, s_fmt, f);
1034 /* Set the correct alternate setting for this resolution */
1035 cx231xx_resolution_set(dev);
1038 mutex_unlock(&dev->lock);
1042 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id * id)
1044 struct cx231xx_fh *fh = priv;
1045 struct cx231xx *dev = fh->dev;
1051 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1053 struct cx231xx_fh *fh = priv;
1054 struct cx231xx *dev = fh->dev;
1055 struct v4l2_format f;
1058 rc = check_dev(dev);
1062 cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1064 mutex_lock(&dev->lock);
1067 /* Adjusts width/height, if needed */
1068 f.fmt.pix.width = dev->width;
1069 f.fmt.pix.height = dev->height;
1070 vidioc_try_fmt_vid_cap(file, priv, &f);
1072 /* set new image size */
1073 dev->width = f.fmt.pix.width;
1074 dev->height = f.fmt.pix.height;
1075 get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1077 call_all(dev, core, s_std, dev->norm);
1079 mutex_unlock(&dev->lock);
1081 cx231xx_resolution_set(dev);
1083 /* do mode control overrides */
1084 cx231xx_do_mode_ctrl_overrides(dev);
1089 static const char *iname[] = {
1090 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1091 [CX231XX_VMUX_SVIDEO] = "S-Video",
1092 [CX231XX_VMUX_TELEVISION] = "Television",
1093 [CX231XX_VMUX_CABLE] = "Cable TV",
1094 [CX231XX_VMUX_DVB] = "DVB",
1095 [CX231XX_VMUX_DEBUG] = "for debug only",
1098 static int vidioc_enum_input(struct file *file, void *priv,
1099 struct v4l2_input *i)
1101 struct cx231xx_fh *fh = priv;
1102 struct cx231xx *dev = fh->dev;
1106 if (n >= MAX_CX231XX_INPUT)
1108 if (0 == INPUT(n)->type)
1112 i->type = V4L2_INPUT_TYPE_CAMERA;
1114 strcpy(i->name, iname[INPUT(n)->type]);
1116 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1117 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1118 i->type = V4L2_INPUT_TYPE_TUNER;
1120 i->std = dev->vdev->tvnorms;
1125 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1127 struct cx231xx_fh *fh = priv;
1128 struct cx231xx *dev = fh->dev;
1130 *i = dev->video_input;
1135 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1137 struct cx231xx_fh *fh = priv;
1138 struct cx231xx *dev = fh->dev;
1141 rc = check_dev(dev);
1145 if (i >= MAX_CX231XX_INPUT)
1147 if (0 == INPUT(i)->type)
1150 mutex_lock(&dev->lock);
1154 mutex_unlock(&dev->lock);
1158 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1160 struct cx231xx_fh *fh = priv;
1161 struct cx231xx *dev = fh->dev;
1164 case CX231XX_AMUX_VIDEO:
1165 strcpy(a->name, "Television");
1167 case CX231XX_AMUX_LINE_IN:
1168 strcpy(a->name, "Line In");
1174 a->index = dev->ctl_ainput;
1175 a->capability = V4L2_AUDCAP_STEREO;
1180 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1182 struct cx231xx_fh *fh = priv;
1183 struct cx231xx *dev = fh->dev;
1186 /* Doesn't allow manual routing */
1187 if (a->index != dev->ctl_ainput)
1190 dev->ctl_ainput = INPUT(a->index)->amux;
1191 status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1196 static int vidioc_queryctrl(struct file *file, void *priv,
1197 struct v4l2_queryctrl *qc)
1199 struct cx231xx_fh *fh = priv;
1200 struct cx231xx *dev = fh->dev;
1205 rc = check_dev(dev);
1209 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1210 if (unlikely(qc->id == 0))
1213 memset(qc, 0, sizeof(*qc));
1217 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1220 for (i = 0; i < CX231XX_CTLS; i++)
1221 if (cx231xx_ctls[i].v.id == qc->id)
1224 if (i == CX231XX_CTLS) {
1228 *qc = cx231xx_ctls[i].v;
1230 mutex_lock(&dev->lock);
1231 call_all(dev, core, queryctrl, qc);
1232 mutex_unlock(&dev->lock);
1240 static int vidioc_g_ctrl(struct file *file, void *priv,
1241 struct v4l2_control *ctrl)
1243 struct cx231xx_fh *fh = priv;
1244 struct cx231xx *dev = fh->dev;
1247 rc = check_dev(dev);
1251 mutex_lock(&dev->lock);
1252 call_all(dev, core, g_ctrl, ctrl);
1253 mutex_unlock(&dev->lock);
1257 static int vidioc_s_ctrl(struct file *file, void *priv,
1258 struct v4l2_control *ctrl)
1260 struct cx231xx_fh *fh = priv;
1261 struct cx231xx *dev = fh->dev;
1264 rc = check_dev(dev);
1268 mutex_lock(&dev->lock);
1269 call_all(dev, core, s_ctrl, ctrl);
1270 mutex_unlock(&dev->lock);
1274 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1276 struct cx231xx_fh *fh = priv;
1277 struct cx231xx *dev = fh->dev;
1280 rc = check_dev(dev);
1287 strcpy(t->name, "Tuner");
1289 t->type = V4L2_TUNER_ANALOG_TV;
1290 t->capability = V4L2_TUNER_CAP_NORM;
1291 t->rangehigh = 0xffffffffUL;
1292 t->signal = 0xffff; /* LOCKED */
1297 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1299 struct cx231xx_fh *fh = priv;
1300 struct cx231xx *dev = fh->dev;
1303 rc = check_dev(dev);
1310 mutex_lock(&dev->lock);
1311 call_all(dev, tuner, s_tuner, t);
1312 mutex_unlock(&dev->lock);
1317 static int vidioc_g_frequency(struct file *file, void *priv,
1318 struct v4l2_frequency *f)
1320 struct cx231xx_fh *fh = priv;
1321 struct cx231xx *dev = fh->dev;
1323 mutex_lock(&dev->lock);
1324 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1325 f->frequency = dev->ctl_freq;
1327 call_all(dev, tuner, g_frequency, f);
1329 mutex_unlock(&dev->lock);
1334 static int vidioc_s_frequency(struct file *file, void *priv,
1335 struct v4l2_frequency *f)
1337 struct cx231xx_fh *fh = priv;
1338 struct cx231xx *dev = fh->dev;
1341 rc = check_dev(dev);
1348 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1350 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1353 /* set pre channel change settings in DIF first */
1354 rc = cx231xx_tuner_pre_channel_change(dev);
1356 mutex_lock(&dev->lock);
1358 dev->ctl_freq = f->frequency;
1360 if (dev->tuner_type == TUNER_XC5000) {
1361 if (dev->cx231xx_set_analog_freq != NULL)
1362 dev->cx231xx_set_analog_freq(dev, f->frequency);
1364 call_all(dev, tuner, s_frequency, f);
1366 mutex_unlock(&dev->lock);
1368 /* set post channel change settings in DIF first */
1369 rc = cx231xx_tuner_post_channel_change(dev);
1371 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1376 #ifdef CONFIG_VIDEO_ADV_DEBUG
1379 -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1380 chip=<chip>[,min=<addr>,max=<addr>]
1381 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1382 -r, --set-register=type=<host/i2cdrv/i2caddr>,
1383 chip=<chip>,reg=<addr>,val=<val>
1384 set the register [VIDIOC_DBG_S_REGISTER]
1386 if type == host, then <chip> is the hosts chip ID (default 0)
1387 if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1388 if type == i2caddr, then <chip> is the 7-bit I2C address
1391 static int vidioc_g_register(struct file *file, void *priv,
1392 struct v4l2_dbg_register *reg)
1394 struct cx231xx_fh *fh = priv;
1395 struct cx231xx *dev = fh->dev;
1397 u8 value[4] = { 0, 0, 0, 0 };
1400 switch (reg->match.type) {
1401 case V4L2_CHIP_MATCH_HOST:
1402 switch (reg->match.addr) {
1403 case 0: /* Cx231xx - internal registers */
1404 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1405 (u16)reg->reg, value, 4);
1406 reg->val = value[0] | value[1] << 8 |
1407 value[2] << 16 | value[3] << 24;
1409 case 1: /* AFE - read byte */
1410 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1411 (u16)reg->reg, 2, &data, 1);
1412 reg->val = le32_to_cpu(data & 0xff);
1414 case 14: /* AFE - read dword */
1415 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1416 (u16)reg->reg, 2, &data, 4);
1417 reg->val = le32_to_cpu(data);
1419 case 2: /* Video Block - read byte */
1420 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1421 (u16)reg->reg, 2, &data, 1);
1422 reg->val = le32_to_cpu(data & 0xff);
1424 case 24: /* Video Block - read dword */
1425 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1426 (u16)reg->reg, 2, &data, 4);
1427 reg->val = le32_to_cpu(data);
1429 case 3: /* I2S block - read byte */
1430 ret = cx231xx_read_i2c_data(dev,
1431 I2S_BLK_DEVICE_ADDRESS,
1434 reg->val = le32_to_cpu(data & 0xff);
1436 case 34: /* I2S Block - read dword */
1438 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1439 (u16)reg->reg, 1, &data, 4);
1440 reg->val = le32_to_cpu(data);
1443 return ret < 0 ? ret : 0;
1445 case V4L2_CHIP_MATCH_I2C_DRIVER:
1446 call_all(dev, core, g_register, reg);
1448 case V4L2_CHIP_MATCH_I2C_ADDR:
1449 /* Not supported yet */
1452 if (!v4l2_chip_match_host(®->match))
1456 mutex_lock(&dev->lock);
1457 call_all(dev, core, g_register, reg);
1458 mutex_unlock(&dev->lock);
1463 static int vidioc_s_register(struct file *file, void *priv,
1464 struct v4l2_dbg_register *reg)
1466 struct cx231xx_fh *fh = priv;
1467 struct cx231xx *dev = fh->dev;
1471 u8 data[4] = { 0, 0, 0, 0 };
1473 buf = cpu_to_le64(reg->val);
1475 switch (reg->match.type) {
1476 case V4L2_CHIP_MATCH_HOST:
1478 value = (u32) buf & 0xffffffff;
1480 switch (reg->match.addr) {
1481 case 0: /* cx231xx internal registers */
1482 data[0] = (u8) value;
1483 data[1] = (u8) (value >> 8);
1484 data[2] = (u8) (value >> 16);
1485 data[3] = (u8) (value >> 24);
1486 ret = cx231xx_write_ctrl_reg(dev,
1488 (u16)reg->reg, data,
1491 case 1: /* AFE - read byte */
1492 ret = cx231xx_write_i2c_data(dev,
1497 case 14: /* AFE - read dword */
1498 ret = cx231xx_write_i2c_data(dev,
1503 case 2: /* Video Block - read byte */
1505 cx231xx_write_i2c_data(dev,
1506 VID_BLK_I2C_ADDRESS,
1510 case 24: /* Video Block - read dword */
1512 cx231xx_write_i2c_data(dev,
1513 VID_BLK_I2C_ADDRESS,
1517 case 3: /* I2S block - read byte */
1519 cx231xx_write_i2c_data(dev,
1520 I2S_BLK_DEVICE_ADDRESS,
1524 case 34: /* I2S block - read dword */
1526 cx231xx_write_i2c_data(dev,
1527 I2S_BLK_DEVICE_ADDRESS,
1533 return ret < 0 ? ret : 0;
1539 mutex_lock(&dev->lock);
1540 call_all(dev, core, s_register, reg);
1541 mutex_unlock(&dev->lock);
1547 static int vidioc_cropcap(struct file *file, void *priv,
1548 struct v4l2_cropcap *cc)
1550 struct cx231xx_fh *fh = priv;
1551 struct cx231xx *dev = fh->dev;
1553 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1556 cc->bounds.left = 0;
1558 cc->bounds.width = dev->width;
1559 cc->bounds.height = dev->height;
1560 cc->defrect = cc->bounds;
1561 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1562 cc->pixelaspect.denominator = 59;
1567 static int vidioc_streamon(struct file *file, void *priv,
1568 enum v4l2_buf_type type)
1570 struct cx231xx_fh *fh = priv;
1571 struct cx231xx *dev = fh->dev;
1574 rc = check_dev(dev);
1578 mutex_lock(&dev->lock);
1581 if (likely(rc >= 0))
1582 rc = videobuf_streamon(&fh->vb_vidq);
1584 call_all(dev, video, s_stream, 1);
1586 mutex_unlock(&dev->lock);
1591 static int vidioc_streamoff(struct file *file, void *priv,
1592 enum v4l2_buf_type type)
1594 struct cx231xx_fh *fh = priv;
1595 struct cx231xx *dev = fh->dev;
1598 rc = check_dev(dev);
1602 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1603 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1605 if (type != fh->type)
1608 mutex_lock(&dev->lock);
1610 cx25840_call(dev, video, s_stream, 0);
1612 videobuf_streamoff(&fh->vb_vidq);
1615 mutex_unlock(&dev->lock);
1620 static int vidioc_querycap(struct file *file, void *priv,
1621 struct v4l2_capability *cap)
1623 struct cx231xx_fh *fh = priv;
1624 struct cx231xx *dev = fh->dev;
1626 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1627 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1628 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1630 cap->version = CX231XX_VERSION_CODE;
1632 cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1634 V4L2_CAP_SLICED_VBI_CAPTURE |
1636 V4L2_CAP_VIDEO_CAPTURE |
1638 V4L2_CAP_READWRITE |
1641 if (dev->tuner_type != TUNER_ABSENT)
1642 cap->capabilities |= V4L2_CAP_TUNER;
1647 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1648 struct v4l2_fmtdesc *f)
1650 if (unlikely(f->index >= ARRAY_SIZE(format)))
1653 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1654 f->pixelformat = format[f->index].fourcc;
1659 /* Sliced VBI ioctls */
1660 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1661 struct v4l2_format *f)
1663 struct cx231xx_fh *fh = priv;
1664 struct cx231xx *dev = fh->dev;
1667 rc = check_dev(dev);
1671 mutex_lock(&dev->lock);
1673 f->fmt.sliced.service_set = 0;
1675 call_all(dev, video, g_fmt, f);
1677 if (f->fmt.sliced.service_set == 0)
1680 mutex_unlock(&dev->lock);
1684 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1685 struct v4l2_format *f)
1687 struct cx231xx_fh *fh = priv;
1688 struct cx231xx *dev = fh->dev;
1691 rc = check_dev(dev);
1695 mutex_lock(&dev->lock);
1696 call_all(dev, video, g_fmt, f);
1697 mutex_unlock(&dev->lock);
1699 if (f->fmt.sliced.service_set == 0)
1705 /* RAW VBI ioctls */
1707 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1708 struct v4l2_format *f)
1710 struct cx231xx_fh *fh = priv;
1711 struct cx231xx *dev = fh->dev;
1713 f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1714 35468950 : 28636363;
1715 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1716 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1717 f->fmt.vbi.offset = 64 * 4;
1718 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1719 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1720 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1721 PAL_VBI_LINES : NTSC_VBI_LINES;
1722 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1723 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1724 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1730 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1731 struct v4l2_format *f)
1733 struct cx231xx_fh *fh = priv;
1734 struct cx231xx *dev = fh->dev;
1736 if (dev->vbi_stream_on && !fh->stream_on) {
1737 cx231xx_errdev("%s device in use by another fh\n", __func__);
1741 f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1742 f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1743 35468950 : 28636363;
1744 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1745 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1746 f->fmt.vbi.offset = 244;
1747 f->fmt.vbi.flags = 0;
1748 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1749 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1750 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1751 PAL_VBI_LINES : NTSC_VBI_LINES;
1752 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1753 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1754 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1760 static int vidioc_reqbufs(struct file *file, void *priv,
1761 struct v4l2_requestbuffers *rb)
1763 struct cx231xx_fh *fh = priv;
1764 struct cx231xx *dev = fh->dev;
1767 rc = check_dev(dev);
1771 return videobuf_reqbufs(&fh->vb_vidq, rb);
1774 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1776 struct cx231xx_fh *fh = priv;
1777 struct cx231xx *dev = fh->dev;
1780 rc = check_dev(dev);
1784 return videobuf_querybuf(&fh->vb_vidq, b);
1787 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1789 struct cx231xx_fh *fh = priv;
1790 struct cx231xx *dev = fh->dev;
1793 rc = check_dev(dev);
1797 return videobuf_qbuf(&fh->vb_vidq, b);
1800 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1802 struct cx231xx_fh *fh = priv;
1803 struct cx231xx *dev = fh->dev;
1806 rc = check_dev(dev);
1810 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1813 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1814 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
1816 struct cx231xx_fh *fh = priv;
1818 return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
1822 /* ----------------------------------------------------------- */
1823 /* RADIO ESPECIFIC IOCTLS */
1824 /* ----------------------------------------------------------- */
1826 static int radio_querycap(struct file *file, void *priv,
1827 struct v4l2_capability *cap)
1829 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1831 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1832 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1833 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1835 cap->version = CX231XX_VERSION_CODE;
1836 cap->capabilities = V4L2_CAP_TUNER;
1840 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1842 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1844 if (unlikely(t->index > 0))
1847 strcpy(t->name, "Radio");
1848 t->type = V4L2_TUNER_RADIO;
1850 mutex_lock(&dev->lock);
1851 call_all(dev, tuner, s_tuner, t);
1852 mutex_unlock(&dev->lock);
1857 static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1861 strcpy(i->name, "Radio");
1862 i->type = V4L2_INPUT_TYPE_TUNER;
1867 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1869 if (unlikely(a->index))
1872 strcpy(a->name, "Radio");
1876 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1878 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1883 mutex_lock(&dev->lock);
1884 call_all(dev, tuner, s_tuner, t);
1885 mutex_unlock(&dev->lock);
1890 static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
1895 static int radio_s_input(struct file *file, void *fh, unsigned int i)
1900 static int radio_queryctrl(struct file *file, void *priv,
1901 struct v4l2_queryctrl *c)
1905 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
1907 if (c->id == V4L2_CID_AUDIO_MUTE) {
1908 for (i = 0; i < CX231XX_CTLS; i++)
1909 if (cx231xx_ctls[i].v.id == c->id)
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 minor = video_devdata(filp)->minor;
1924 int errCode = 0, radio = 0;
1925 struct cx231xx *dev = NULL;
1926 struct cx231xx_fh *fh;
1927 enum v4l2_buf_type fh_type = 0;
1929 dev = cx231xx_get_device(minor, &fh_type, &radio);
1933 mutex_lock(&dev->lock);
1935 cx231xx_videodbg("open minor=%d type=%s users=%d\n",
1936 minor, v4l2_type_names[fh_type], dev->users);
1939 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1942 ("Device locked on digital mode. Can't open analog\n");
1943 mutex_unlock(&dev->lock);
1948 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1950 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1951 mutex_unlock(&dev->lock);
1957 filp->private_data = fh;
1959 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1960 dev->width = norm_maxw(dev);
1961 dev->height = norm_maxh(dev);
1965 /* Power up in Analog TV mode */
1966 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1969 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1971 cx231xx_resolution_set(dev);
1973 /* set video alternate setting */
1974 cx231xx_set_video_alternate(dev);
1976 /* Needed, since GPIO might have disabled power of
1978 cx231xx_config_i2c(dev);
1980 /* device needs to be initialized before isoc transfer */
1981 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1982 video_mux(dev, dev->video_input);
1986 cx231xx_videodbg("video_open: setting radio device\n");
1988 /* cx231xx_start_radio(dev); */
1990 call_all(dev, tuner, s_radio);
1995 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1996 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
1997 NULL, &dev->video_mode.slock,
1998 fh->type, V4L2_FIELD_INTERLACED,
1999 sizeof(struct cx231xx_buffer), fh);
2000 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2001 /* Set the required alternate setting VBI interface works in
2003 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2005 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2006 NULL, &dev->vbi_mode.slock,
2007 fh->type, V4L2_FIELD_SEQ_TB,
2008 sizeof(struct cx231xx_buffer), fh);
2011 mutex_unlock(&dev->lock);
2017 * cx231xx_realease_resources()
2018 * unregisters the v4l2,i2c and usb devices
2019 * called when the device gets disconected or at module unload
2021 void cx231xx_release_analog_resources(struct cx231xx *dev)
2024 /*FIXME: I2C IR should be disconnected */
2026 if (dev->radio_dev) {
2027 if (-1 != dev->radio_dev->minor)
2028 video_unregister_device(dev->radio_dev);
2030 video_device_release(dev->radio_dev);
2031 dev->radio_dev = NULL;
2034 cx231xx_info("V4L2 device /dev/vbi%d deregistered\n",
2036 if (-1 != dev->vbi_dev->minor)
2037 video_unregister_device(dev->vbi_dev);
2039 video_device_release(dev->vbi_dev);
2040 dev->vbi_dev = NULL;
2043 cx231xx_info("V4L2 device /dev/video%d deregistered\n",
2045 if (-1 != dev->vdev->minor)
2046 video_unregister_device(dev->vdev);
2048 video_device_release(dev->vdev);
2054 * cx231xx_v4l2_close()
2055 * stops streaming and deallocates all resources allocated by the v4l2
2058 static int cx231xx_v4l2_close(struct file *filp)
2060 struct cx231xx_fh *fh = filp->private_data;
2061 struct cx231xx *dev = fh->dev;
2063 cx231xx_videodbg("users=%d\n", dev->users);
2065 mutex_lock(&dev->lock);
2070 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2071 videobuf_stop(&fh->vb_vidq);
2072 videobuf_mmap_free(&fh->vb_vidq);
2074 /* the device is already disconnect,
2075 free the remaining resources */
2076 if (dev->state & DEV_DISCONNECTED) {
2077 cx231xx_release_resources(dev);
2078 mutex_unlock(&dev->lock);
2083 /* do this before setting alternate! */
2084 cx231xx_uninit_vbi_isoc(dev);
2086 /* set alternate 0 */
2087 if (!dev->vbi_or_sliced_cc_mode)
2088 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2090 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2094 wake_up_interruptible_nr(&dev->open, 1);
2095 mutex_unlock(&dev->lock);
2099 if (dev->users == 1) {
2100 videobuf_stop(&fh->vb_vidq);
2101 videobuf_mmap_free(&fh->vb_vidq);
2103 /* the device is already disconnect,
2104 free the remaining resources */
2105 if (dev->state & DEV_DISCONNECTED) {
2106 cx231xx_release_resources(dev);
2107 mutex_unlock(&dev->lock);
2112 /* Save some power by putting tuner to sleep */
2113 call_all(dev, tuner, s_standby);
2115 /* do this before setting alternate! */
2116 cx231xx_uninit_isoc(dev);
2117 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2119 /* set alternate 0 */
2120 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2124 wake_up_interruptible_nr(&dev->open, 1);
2125 mutex_unlock(&dev->lock);
2130 * cx231xx_v4l2_read()
2131 * will allocate buffers when called for the first time
2134 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2137 struct cx231xx_fh *fh = filp->private_data;
2138 struct cx231xx *dev = fh->dev;
2141 rc = check_dev(dev);
2145 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2146 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2147 mutex_lock(&dev->lock);
2149 mutex_unlock(&dev->lock);
2151 if (unlikely(rc < 0))
2154 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2155 filp->f_flags & O_NONBLOCK);
2161 * cx231xx_v4l2_poll()
2162 * will allocate buffers when called for the first time
2164 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table * wait)
2166 struct cx231xx_fh *fh = filp->private_data;
2167 struct cx231xx *dev = fh->dev;
2170 rc = check_dev(dev);
2174 mutex_lock(&dev->lock);
2176 mutex_unlock(&dev->lock);
2178 if (unlikely(rc < 0))
2181 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2182 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2183 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2189 * cx231xx_v4l2_mmap()
2191 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2193 struct cx231xx_fh *fh = filp->private_data;
2194 struct cx231xx *dev = fh->dev;
2197 rc = check_dev(dev);
2201 mutex_lock(&dev->lock);
2203 mutex_unlock(&dev->lock);
2205 if (unlikely(rc < 0))
2208 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2210 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2211 (unsigned long)vma->vm_start,
2212 (unsigned long)vma->vm_end -
2213 (unsigned long)vma->vm_start, rc);
2218 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2219 .owner = THIS_MODULE,
2220 .open = cx231xx_v4l2_open,
2221 .release = cx231xx_v4l2_close,
2222 .read = cx231xx_v4l2_read,
2223 .poll = cx231xx_v4l2_poll,
2224 .mmap = cx231xx_v4l2_mmap,
2225 .ioctl = video_ioctl2,
2228 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2229 .vidioc_querycap = vidioc_querycap,
2230 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2231 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2232 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2233 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2234 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2235 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2236 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2237 .vidioc_g_audio = vidioc_g_audio,
2238 .vidioc_s_audio = vidioc_s_audio,
2239 .vidioc_cropcap = vidioc_cropcap,
2240 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
2241 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2242 .vidioc_reqbufs = vidioc_reqbufs,
2243 .vidioc_querybuf = vidioc_querybuf,
2244 .vidioc_qbuf = vidioc_qbuf,
2245 .vidioc_dqbuf = vidioc_dqbuf,
2246 .vidioc_s_std = vidioc_s_std,
2247 .vidioc_g_std = vidioc_g_std,
2248 .vidioc_enum_input = vidioc_enum_input,
2249 .vidioc_g_input = vidioc_g_input,
2250 .vidioc_s_input = vidioc_s_input,
2251 .vidioc_queryctrl = vidioc_queryctrl,
2252 .vidioc_g_ctrl = vidioc_g_ctrl,
2253 .vidioc_s_ctrl = vidioc_s_ctrl,
2254 .vidioc_streamon = vidioc_streamon,
2255 .vidioc_streamoff = vidioc_streamoff,
2256 .vidioc_g_tuner = vidioc_g_tuner,
2257 .vidioc_s_tuner = vidioc_s_tuner,
2258 .vidioc_g_frequency = vidioc_g_frequency,
2259 .vidioc_s_frequency = vidioc_s_frequency,
2260 #ifdef CONFIG_VIDEO_ADV_DEBUG
2261 .vidioc_g_register = vidioc_g_register,
2262 .vidioc_s_register = vidioc_s_register,
2264 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2265 .vidiocgmbuf = vidiocgmbuf,
2269 static struct video_device cx231xx_vbi_template;
2271 static const struct video_device cx231xx_video_template = {
2272 .fops = &cx231xx_v4l_fops,
2273 .release = video_device_release,
2274 .ioctl_ops = &video_ioctl_ops,
2276 .tvnorms = V4L2_STD_ALL,
2277 .current_norm = V4L2_STD_PAL,
2280 static const struct v4l2_file_operations radio_fops = {
2281 .owner = THIS_MODULE,
2282 .open = cx231xx_v4l2_open,
2283 .release = cx231xx_v4l2_close,
2284 .ioctl = video_ioctl2,
2287 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2288 .vidioc_querycap = radio_querycap,
2289 .vidioc_g_tuner = radio_g_tuner,
2290 .vidioc_enum_input = radio_enum_input,
2291 .vidioc_g_audio = radio_g_audio,
2292 .vidioc_s_tuner = radio_s_tuner,
2293 .vidioc_s_audio = radio_s_audio,
2294 .vidioc_s_input = radio_s_input,
2295 .vidioc_queryctrl = radio_queryctrl,
2296 .vidioc_g_ctrl = vidioc_g_ctrl,
2297 .vidioc_s_ctrl = vidioc_s_ctrl,
2298 .vidioc_g_frequency = vidioc_g_frequency,
2299 .vidioc_s_frequency = vidioc_s_frequency,
2300 #ifdef CONFIG_VIDEO_ADV_DEBUG
2301 .vidioc_g_register = vidioc_g_register,
2302 .vidioc_s_register = vidioc_s_register,
2306 static struct video_device cx231xx_radio_template = {
2307 .name = "cx231xx-radio",
2308 .fops = &radio_fops,
2309 .ioctl_ops = &radio_ioctl_ops,
2313 /******************************** usb interface ******************************/
2315 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2316 const struct video_device
2317 *template, const char *type_name)
2319 struct video_device *vfd;
2321 vfd = video_device_alloc();
2327 vfd->v4l2_dev = &dev->v4l2_dev;
2328 vfd->release = video_device_release;
2329 vfd->debug = video_debug;
2331 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2336 int cx231xx_register_analog_devices(struct cx231xx *dev)
2340 cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
2342 (CX231XX_VERSION_CODE >> 16) & 0xff,
2343 (CX231XX_VERSION_CODE >> 8) & 0xff,
2344 CX231XX_VERSION_CODE & 0xff);
2346 /* set default norm */
2347 /*dev->norm = cx231xx_video_template.current_norm; */
2348 dev->width = norm_maxw(dev);
2349 dev->height = norm_maxh(dev);
2350 dev->interlaced = 0;
2354 /* Analog specific initialization */
2355 dev->format = &format[0];
2356 /* video_mux(dev, dev->video_input); */
2358 /* Audio defaults */
2362 /* enable vbi capturing */
2363 /* write code here... */
2365 /* allocate and fill video video_device struct */
2366 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2368 cx231xx_errdev("cannot allocate video_device.\n");
2372 /* register v4l2 video video_device */
2373 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2374 video_nr[dev->devno]);
2376 cx231xx_errdev("unable to register video device (error=%i).\n",
2381 cx231xx_info("%s/0: registered device video%d [v4l2]\n",
2382 dev->name, dev->vdev->num);
2384 /* Initialize VBI template */
2385 memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2386 sizeof(cx231xx_vbi_template));
2387 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2389 /* Allocate and fill vbi video_device struct */
2390 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2392 /* register v4l2 vbi video_device */
2393 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2394 vbi_nr[dev->devno]);
2396 cx231xx_errdev("unable to register vbi device\n");
2400 cx231xx_info("%s/0: registered device vbi%d\n",
2401 dev->name, dev->vbi_dev->num);
2403 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2404 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2406 if (!dev->radio_dev) {
2407 cx231xx_errdev("cannot allocate video_device.\n");
2410 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2411 radio_nr[dev->devno]);
2413 cx231xx_errdev("can't register radio device\n");
2416 cx231xx_info("Registered radio device as /dev/radio%d\n",
2417 dev->radio_dev->num);
2420 cx231xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
2421 dev->vdev->num, dev->vbi_dev->num);