2 tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
4 Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
6 Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7 - Fixed module load/unload
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation version 2
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
29 #include <linux/ioport.h>
30 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/random.h>
33 #include <linux/version.h>
34 #include <linux/usb.h>
35 #include <linux/videodev2.h>
36 #include <media/v4l2-ioctl.h>
37 #include <linux/interrupt.h>
38 #include <linux/kthread.h>
39 #include <linux/highmem.h>
40 #include <linux/freezer.h>
42 #include "tm6000-regs.h"
45 #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
47 /* Limits minimum and default number of buffers */
48 #define TM6000_MIN_BUF 4
49 #define TM6000_DEF_BUF 8
51 #define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
53 /* Declare static vars that will be used as parameters */
54 static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
55 static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
59 EXPORT_SYMBOL_GPL(tm6000_debug);
61 /* supported controls */
62 static struct v4l2_queryctrl tm6000_qctrl[] = {
64 .id = V4L2_CID_BRIGHTNESS,
65 .type = V4L2_CTRL_TYPE_INTEGER,
73 .id = V4L2_CID_CONTRAST,
74 .type = V4L2_CTRL_TYPE_INTEGER,
82 .id = V4L2_CID_SATURATION,
83 .type = V4L2_CTRL_TYPE_INTEGER,
92 .type = V4L2_CTRL_TYPE_INTEGER,
102 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
104 static struct tm6000_fmt format[] = {
106 .name = "4:2:2, packed, YVY2",
107 .fourcc = V4L2_PIX_FMT_YUYV,
110 .name = "4:2:2, packed, UYVY",
111 .fourcc = V4L2_PIX_FMT_UYVY,
114 .name = "A/V + VBI mux packet",
115 .fourcc = V4L2_PIX_FMT_TM6000,
120 /* ------------------------------------------------------------------
121 DMA and thread functions
122 ------------------------------------------------------------------*/
124 #define norm_maxw(a) 720
125 #define norm_maxh(a) 576
127 #define norm_minw(a) norm_maxw(a)
128 #define norm_minh(a) norm_maxh(a)
131 * video-buf generic routine to get the next available buffer
133 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
134 struct tm6000_buffer **buf)
136 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
139 if (list_empty(&dma_q->active)) {
140 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
145 *buf = list_entry(dma_q->active.next,
146 struct tm6000_buffer, vb.queue);
151 /* Cleans up buffer - Usefull for testing for frame/URB loss */
152 outp = videobuf_to_vmalloc(&(*buf)->vb);
158 * Announces that a buffer were filled and request the next
160 static inline void buffer_filled(struct tm6000_core *dev,
161 struct tm6000_dmaqueue *dma_q,
162 struct tm6000_buffer *buf)
164 /* Advice that buffer was filled */
165 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
166 buf->vb.state = VIDEOBUF_DONE;
167 buf->vb.field_count++;
168 do_gettimeofday(&buf->vb.ts);
170 list_del(&buf->vb.queue);
171 wake_up(&buf->vb.done);
174 const char *tm6000_msg_type[] = {
175 "unknown(0)", /* 0 */
181 "unknown(6)", /* 6 */
182 "unknown(7)", /* 7 */
186 * Identify the tm5600/6000 buffer header type and properly handles
188 static int copy_streams(u8 *data, unsigned long len,
191 struct tm6000_dmaqueue *dma_q = urb->context;
192 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
193 u8 *ptr=data, *endp=data+len, c;
194 unsigned long header=0;
196 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
197 struct tm6000_buffer *vbuf;
199 unsigned int linewidth;
201 /* get video buffer */
202 get_next_buf (dma_q, &vbuf);
205 voutp = videobuf_to_vmalloc(&vbuf->vb);
209 for (ptr = data; ptr < endp;) {
210 if (!dev->isoc_ctl.cmd) {
212 if (dev->isoc_ctl.tmp_buf_len > 0) {
213 /* from last urb or packet */
214 header = dev->isoc_ctl.tmp_buf;
215 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
216 memcpy ((u8 *)&header +
217 dev->isoc_ctl.tmp_buf_len,
219 4 - dev->isoc_ctl.tmp_buf_len);
220 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
222 dev->isoc_ctl.tmp_buf_len = 0;
224 if (ptr + 3 >= endp) {
225 /* have incomplete header */
226 dev->isoc_ctl.tmp_buf_len = endp - ptr;
227 memcpy (&dev->isoc_ctl.tmp_buf, ptr,
228 dev->isoc_ctl.tmp_buf_len);
232 for (; ptr < endp - 3; ptr++) {
233 if (*(ptr + 3) == 0x47)
236 /* Get message header */
237 header = *(unsigned long *)ptr;
241 /* split the header fields */
242 c = (header >> 24) & 0xff;
243 size = ((header & 0x7e) << 1);
246 block = (header >> 7) & 0xf;
247 field = (header >> 11) & 0x1;
248 line = (header >> 12) & 0x1ff;
249 cmd = (header >> 21) & 0x7;
250 /* Validates haeder fields */
251 if (size > TM6000_URB_MSG_LEN)
252 size = TM6000_URB_MSG_LEN;
253 pktsize = TM6000_URB_MSG_LEN;
254 /* calculate position in buffer
255 * and change the buffer
258 case TM6000_URB_MSG_VIDEO:
259 if ((dev->isoc_ctl.vfield != field) &&
261 /* Announces that a new buffer
264 buffer_filled (dev, dma_q, vbuf);
265 dprintk (dev, V4L2_DEBUG_ISOC,
266 "new buffer filled\n");
267 get_next_buf (dma_q, &vbuf);
270 voutp = videobuf_to_vmalloc (&vbuf->vb);
273 memset(voutp, 0, vbuf->vb.size);
275 linewidth = vbuf->vb.width << 1;
276 pos = ((line << 1) - field - 1) * linewidth +
277 block * TM6000_URB_MSG_LEN;
278 /* Don't allow to write out of the buffer */
279 if (pos + size > vbuf->vb.size)
280 cmd = TM6000_URB_MSG_ERR;
281 dev->isoc_ctl.vfield = field;
283 case TM6000_URB_MSG_VBI:
285 case TM6000_URB_MSG_AUDIO:
286 case TM6000_URB_MSG_PTS:
287 size = pktsize; /* Size is always 180 bytes */
291 /* Continue the last copy */
292 cmd = dev->isoc_ctl.cmd;
293 size = dev->isoc_ctl.size;
294 pos = dev->isoc_ctl.pos;
295 pktsize = dev->isoc_ctl.pktsize;
297 cpysize = (endp - ptr > size) ? size : endp - ptr;
299 /* copy data in different buffers */
301 case TM6000_URB_MSG_VIDEO:
302 /* Fills video buffer */
304 memcpy (&voutp[pos], ptr, cpysize);
306 case TM6000_URB_MSG_AUDIO:
307 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
309 case TM6000_URB_MSG_VBI:
310 /* Need some code to copy vbi buffer */
312 case TM6000_URB_MSG_PTS:
313 /* Need some code to copy pts */
317 if (ptr + pktsize > endp) {
318 /* End of URB packet, but cmd processing is not
319 * complete. Preserve the state for a next packet
321 dev->isoc_ctl.pos = pos + cpysize;
322 dev->isoc_ctl.size = size - cpysize;
323 dev->isoc_ctl.cmd = cmd;
324 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
327 dev->isoc_ctl.cmd = 0;
335 * Identify the tm5600/6000 buffer header type and properly handles
337 static int copy_multiplexed(u8 *ptr, unsigned long len,
340 struct tm6000_dmaqueue *dma_q = urb->context;
341 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
342 unsigned int pos=dev->isoc_ctl.pos,cpysize;
344 struct tm6000_buffer *buf;
347 get_next_buf(dma_q, &buf);
349 outp = videobuf_to_vmalloc(&buf->vb);
355 cpysize=min(len,buf->vb.size-pos);
356 //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
357 memcpy(&outp[pos], ptr, cpysize);
361 if (pos >= buf->vb.size) {
363 /* Announces that a new buffer were filled */
364 buffer_filled (dev, dma_q, buf);
365 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
366 get_next_buf (dma_q, &buf);
369 outp = videobuf_to_vmalloc(&(buf->vb));
376 dev->isoc_ctl.pos=pos;
380 static void inline print_err_status (struct tm6000_core *dev,
381 int packet, int status)
383 char *errmsg = "Unknown";
387 errmsg = "unlinked synchronuously";
390 errmsg = "unlinked asynchronuously";
393 errmsg = "Buffer error (overrun)";
396 errmsg = "Stalled (device not responding)";
399 errmsg = "Babble (bad cable?)";
402 errmsg = "Bit-stuff error (bad cable?)";
405 errmsg = "CRC/Timeout (could be anything)";
408 errmsg = "Device does not respond";
412 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
415 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
416 packet, status, errmsg);
422 * Controls the isoc copy of each urb packet
424 static inline int tm6000_isoc_copy(struct urb *urb)
426 struct tm6000_dmaqueue *dma_q = urb->context;
427 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
428 int i, len=0, rc=1, status;
431 if (urb->status < 0) {
432 print_err_status (dev, -1, urb->status);
436 for (i = 0; i < urb->number_of_packets; i++) {
437 status = urb->iso_frame_desc[i].status;
440 print_err_status (dev,i,status);
444 len = urb->iso_frame_desc[i].actual_length;
447 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
448 if (!urb->iso_frame_desc[i].status) {
449 if ((dev->fourcc)==V4L2_PIX_FMT_TM6000) {
450 rc=copy_multiplexed(p, len, urb);
454 copy_streams(p, len, urb);
462 /* ------------------------------------------------------------------
464 ------------------------------------------------------------------*/
467 * IRQ callback, called by URB callback
469 static void tm6000_irq_callback(struct urb *urb)
471 struct tm6000_dmaqueue *dma_q = urb->context;
472 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
478 spin_lock(&dev->slock);
479 tm6000_isoc_copy(urb);
480 spin_unlock(&dev->slock);
482 /* Reset urb buffers */
483 for (i = 0; i < urb->number_of_packets; i++) {
484 urb->iso_frame_desc[i].status = 0;
485 urb->iso_frame_desc[i].actual_length = 0;
488 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
490 tm6000_err("urb resubmit failed (error=%i)\n",
495 * Stop and Deallocate URBs
497 static void tm6000_uninit_isoc(struct tm6000_core *dev)
502 dev->isoc_ctl.buf = NULL;
503 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
504 urb=dev->isoc_ctl.urb[i];
508 if (dev->isoc_ctl.transfer_buffer[i]) {
509 usb_free_coherent(dev->udev,
510 urb->transfer_buffer_length,
511 dev->isoc_ctl.transfer_buffer[i],
515 dev->isoc_ctl.urb[i] = NULL;
517 dev->isoc_ctl.transfer_buffer[i] = NULL;
520 kfree (dev->isoc_ctl.urb);
521 kfree (dev->isoc_ctl.transfer_buffer);
523 dev->isoc_ctl.urb=NULL;
524 dev->isoc_ctl.transfer_buffer=NULL;
525 dev->isoc_ctl.num_bufs = 0;
529 * Allocate URBs and start IRQ
531 static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize)
533 struct tm6000_dmaqueue *dma_q = &dev->vidq;
534 int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
537 /* De-allocates all pending stuff */
538 tm6000_uninit_isoc(dev);
540 usb_set_interface(dev->udev,
541 dev->isoc_in.bInterfaceNumber,
542 dev->isoc_in.bAlternateSetting);
544 pipe = usb_rcvisocpipe(dev->udev,
545 dev->isoc_in.endp->desc.bEndpointAddress &
546 USB_ENDPOINT_NUMBER_MASK);
548 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
550 if (size > dev->isoc_in.maxsize)
551 size = dev->isoc_in.maxsize;
553 dev->isoc_ctl.max_pkt_size = size;
555 max_packets = ( framesize + size - 1) / size;
557 if (max_packets > TM6000_MAX_ISO_PACKETS)
558 max_packets = TM6000_MAX_ISO_PACKETS;
560 sb_size = max_packets * size;
562 dev->isoc_ctl.num_bufs = num_bufs;
564 dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
565 if (!dev->isoc_ctl.urb) {
566 tm6000_err("cannot alloc memory for usb buffers\n");
570 dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
572 if (!dev->isoc_ctl.transfer_buffer) {
573 tm6000_err("cannot allocate memory for usbtransfer\n");
574 kfree(dev->isoc_ctl.urb);
578 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
579 " (%d bytes) of %d bytes each to handle %u size\n",
580 max_packets, num_bufs, sb_size,
581 dev->isoc_in.maxsize, size);
583 /* allocate urbs and transfer buffers */
584 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
585 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
587 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
588 tm6000_uninit_isoc(dev);
592 dev->isoc_ctl.urb[i] = urb;
594 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
595 sb_size, GFP_KERNEL, &urb->transfer_dma);
596 if (!dev->isoc_ctl.transfer_buffer[i]) {
597 tm6000_err ("unable to allocate %i bytes for transfer"
600 in_interrupt()?" while in int":"");
601 tm6000_uninit_isoc(dev);
604 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
606 usb_fill_bulk_urb(urb, dev->udev, pipe,
607 dev->isoc_ctl.transfer_buffer[i], sb_size,
608 tm6000_irq_callback, dma_q);
609 urb->interval = dev->isoc_in.endp->desc.bInterval;
610 urb->number_of_packets = max_packets;
611 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
613 for (j = 0; j < max_packets; j++) {
614 urb->iso_frame_desc[j].offset = size * j;
615 urb->iso_frame_desc[j].length = size;
622 static int tm6000_start_thread( struct tm6000_core *dev)
624 struct tm6000_dmaqueue *dma_q = &dev->vidq;
628 dma_q->ini_jiffies=jiffies;
630 init_waitqueue_head(&dma_q->wq);
632 /* submit urbs and enables IRQ */
633 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
634 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
636 tm6000_err("submit of urb %i failed (error=%i)\n", i,
638 tm6000_uninit_isoc(dev);
646 /* ------------------------------------------------------------------
648 ------------------------------------------------------------------*/
651 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
653 struct tm6000_fh *fh = vq->priv_data;
655 *size = fh->fmt->depth * fh->width * fh->height >> 3;
657 *count = TM6000_DEF_BUF;
659 if (*count < TM6000_MIN_BUF) {
660 *count=TM6000_MIN_BUF;
663 while (*size * *count > vid_limit * 1024 * 1024)
669 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
671 struct tm6000_fh *fh = vq->priv_data;
672 struct tm6000_core *dev = fh->dev;
678 /* We used to wait for the buffer to finish here, but this didn't work
679 because, as we were keeping the state as VIDEOBUF_QUEUED,
680 videobuf_queue_cancel marked it as finished for us.
681 (Also, it could wedge forever if the hardware was misconfigured.)
683 This should be safe; by the time we get here, the buffer isn't
684 queued anymore. If we ever start marking the buffers as
685 VIDEOBUF_ACTIVE, it won't be, though.
687 spin_lock_irqsave(&dev->slock, flags);
688 if (dev->isoc_ctl.buf == buf)
689 dev->isoc_ctl.buf = NULL;
690 spin_unlock_irqrestore(&dev->slock, flags);
692 videobuf_vmalloc_free(&buf->vb);
693 buf->vb.state = VIDEOBUF_NEEDS_INIT;
697 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
698 enum v4l2_field field)
700 struct tm6000_fh *fh = vq->priv_data;
701 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
702 struct tm6000_core *dev = fh->dev;
703 int rc = 0, urb_init = 0;
705 BUG_ON(NULL == fh->fmt);
708 /* FIXME: It assumes depth=2 */
709 /* The only currently supported format is 16 bits/pixel */
710 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
711 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
714 if (buf->fmt != fh->fmt ||
715 buf->vb.width != fh->width ||
716 buf->vb.height != fh->height ||
717 buf->vb.field != field) {
719 buf->vb.width = fh->width;
720 buf->vb.height = fh->height;
721 buf->vb.field = field;
722 buf->vb.state = VIDEOBUF_NEEDS_INIT;
725 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
726 if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
731 if (!dev->isoc_ctl.num_bufs)
735 rc = tm6000_prepare_isoc(dev, buf->vb.size);
739 rc = tm6000_start_thread(dev);
745 buf->vb.state = VIDEOBUF_PREPARED;
749 free_buffer(vq, buf);
754 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
756 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
757 struct tm6000_fh *fh = vq->priv_data;
758 struct tm6000_core *dev = fh->dev;
759 struct tm6000_dmaqueue *vidq = &dev->vidq;
761 buf->vb.state = VIDEOBUF_QUEUED;
762 list_add_tail(&buf->vb.queue, &vidq->active);
765 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
767 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
772 static struct videobuf_queue_ops tm6000_video_qops = {
773 .buf_setup = buffer_setup,
774 .buf_prepare = buffer_prepare,
775 .buf_queue = buffer_queue,
776 .buf_release = buffer_release,
779 /* ------------------------------------------------------------------
781 ------------------------------------------------------------------*/
783 static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
786 mutex_lock(&dev->lock);
787 if (dev->resources) {
788 /* no, someone else uses it */
789 mutex_unlock(&dev->lock);
792 /* it's free, grab it */
794 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
795 mutex_unlock(&dev->lock);
799 static int res_locked(struct tm6000_core *dev)
801 return (dev->resources);
804 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
806 mutex_lock(&dev->lock);
808 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
809 mutex_unlock(&dev->lock);
812 /* ------------------------------------------------------------------
813 IOCTL vidioc handling
814 ------------------------------------------------------------------*/
815 static int vidioc_querycap (struct file *file, void *priv,
816 struct v4l2_capability *cap)
818 // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
820 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
821 strlcpy(cap->card,"Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
822 // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
823 cap->version = TM6000_VERSION;
824 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
831 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
832 struct v4l2_fmtdesc *f)
834 if (unlikely(f->index >= ARRAY_SIZE(format)))
837 strlcpy(f->description,format[f->index].name,sizeof(f->description));
838 f->pixelformat = format[f->index].fourcc;
842 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
843 struct v4l2_format *f)
845 struct tm6000_fh *fh=priv;
847 f->fmt.pix.width = fh->width;
848 f->fmt.pix.height = fh->height;
849 f->fmt.pix.field = fh->vb_vidq.field;
850 f->fmt.pix.pixelformat = fh->fmt->fourcc;
851 f->fmt.pix.bytesperline =
852 (f->fmt.pix.width * fh->fmt->depth) >> 3;
853 f->fmt.pix.sizeimage =
854 f->fmt.pix.height * f->fmt.pix.bytesperline;
859 static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
863 for (i = 0; i < ARRAY_SIZE(format); i++)
864 if (format[i].fourcc == fourcc)
869 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
870 struct v4l2_format *f)
872 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
873 struct tm6000_fmt *fmt;
874 enum v4l2_field field;
876 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
878 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
879 " invalid.\n", f->fmt.pix.pixelformat);
883 field = f->fmt.pix.field;
885 if (field == V4L2_FIELD_ANY) {
886 // field=V4L2_FIELD_INTERLACED;
887 field=V4L2_FIELD_SEQ_TB;
888 } else if (V4L2_FIELD_INTERLACED != field) {
889 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
893 tm6000_get_std_res (dev);
895 f->fmt.pix.width = dev->width;
896 f->fmt.pix.height = dev->height;
898 f->fmt.pix.width &= ~0x01;
900 f->fmt.pix.field = field;
902 f->fmt.pix.bytesperline =
903 (f->fmt.pix.width * fmt->depth) >> 3;
904 f->fmt.pix.sizeimage =
905 f->fmt.pix.height * f->fmt.pix.bytesperline;
910 /*FIXME: This seems to be generic enough to be at videodev2 */
911 static int vidioc_s_fmt_vid_cap (struct file *file, void *priv,
912 struct v4l2_format *f)
914 struct tm6000_fh *fh=priv;
915 struct tm6000_core *dev = fh->dev;
916 int ret = vidioc_try_fmt_vid_cap(file,fh,f);
920 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
921 fh->width = f->fmt.pix.width;
922 fh->height = f->fmt.pix.height;
923 fh->vb_vidq.field = f->fmt.pix.field;
926 dev->fourcc = f->fmt.pix.pixelformat;
928 tm6000_set_fourcc_format(dev);
933 static int vidioc_reqbufs (struct file *file, void *priv,
934 struct v4l2_requestbuffers *p)
936 struct tm6000_fh *fh=priv;
938 return (videobuf_reqbufs(&fh->vb_vidq, p));
941 static int vidioc_querybuf (struct file *file, void *priv,
942 struct v4l2_buffer *p)
944 struct tm6000_fh *fh=priv;
946 return (videobuf_querybuf(&fh->vb_vidq, p));
949 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
951 struct tm6000_fh *fh=priv;
953 return (videobuf_qbuf(&fh->vb_vidq, p));
956 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
958 struct tm6000_fh *fh=priv;
960 return (videobuf_dqbuf(&fh->vb_vidq, p,
961 file->f_flags & O_NONBLOCK));
964 #ifdef CONFIG_VIDEO_V4L1_COMPAT
965 static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
967 struct tm6000_fh *fh=priv;
969 return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
973 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
975 struct tm6000_fh *fh=priv;
976 struct tm6000_core *dev = fh->dev;
978 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
983 if (!res_get(dev,fh))
985 return (videobuf_streamon(&fh->vb_vidq));
988 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
990 struct tm6000_fh *fh=priv;
991 struct tm6000_core *dev = fh->dev;
993 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
998 videobuf_streamoff(&fh->vb_vidq);
1004 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1007 struct tm6000_fh *fh=priv;
1008 struct tm6000_core *dev = fh->dev;
1010 rc=tm6000_set_standard (dev, norm);
1012 fh->width = dev->width;
1013 fh->height = dev->height;
1018 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1023 static int vidioc_enum_input (struct file *file, void *priv,
1024 struct v4l2_input *inp)
1026 switch (inp->index) {
1027 case TM6000_INPUT_TV:
1028 inp->type = V4L2_INPUT_TYPE_TUNER;
1029 strcpy(inp->name,"Television");
1031 case TM6000_INPUT_COMPOSITE:
1032 inp->type = V4L2_INPUT_TYPE_CAMERA;
1033 strcpy(inp->name,"Composite");
1035 case TM6000_INPUT_SVIDEO:
1036 inp->type = V4L2_INPUT_TYPE_CAMERA;
1037 strcpy(inp->name,"S-Video");
1042 inp->std = TM6000_STD;
1047 static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
1049 struct tm6000_fh *fh=priv;
1050 struct tm6000_core *dev = fh->dev;
1056 static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
1058 struct tm6000_fh *fh=priv;
1059 struct tm6000_core *dev = fh->dev;
1064 case TM6000_INPUT_TV:
1068 case TM6000_INPUT_COMPOSITE:
1069 case TM6000_INPUT_SVIDEO:
1076 rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
1077 REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
1081 rc=vidioc_s_std (file, priv, &dev->vfd->current_norm);
1087 /* --- controls ---------------------------------------------- */
1088 static int vidioc_queryctrl (struct file *file, void *priv,
1089 struct v4l2_queryctrl *qc)
1093 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1094 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1095 memcpy(qc, &(tm6000_qctrl[i]),
1103 static int vidioc_g_ctrl (struct file *file, void *priv,
1104 struct v4l2_control *ctrl)
1106 struct tm6000_fh *fh=priv;
1107 struct tm6000_core *dev = fh->dev;
1110 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1112 case V4L2_CID_CONTRAST:
1113 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1115 case V4L2_CID_BRIGHTNESS:
1116 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1118 case V4L2_CID_SATURATION:
1119 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1122 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1135 static int vidioc_s_ctrl (struct file *file, void *priv,
1136 struct v4l2_control *ctrl)
1138 struct tm6000_fh *fh =priv;
1139 struct tm6000_core *dev = fh->dev;
1143 case V4L2_CID_CONTRAST:
1144 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1146 case V4L2_CID_BRIGHTNESS:
1147 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1149 case V4L2_CID_SATURATION:
1150 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1153 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1159 static int vidioc_g_tuner (struct file *file, void *priv,
1160 struct v4l2_tuner *t)
1162 struct tm6000_fh *fh =priv;
1163 struct tm6000_core *dev = fh->dev;
1165 if (unlikely(UNSET == dev->tuner_type))
1170 strcpy(t->name, "Television");
1171 t->type = V4L2_TUNER_ANALOG_TV;
1172 t->capability = V4L2_TUNER_CAP_NORM;
1173 t->rangehigh = 0xffffffffUL;
1174 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1179 static int vidioc_s_tuner (struct file *file, void *priv,
1180 struct v4l2_tuner *t)
1182 struct tm6000_fh *fh =priv;
1183 struct tm6000_core *dev = fh->dev;
1185 if (UNSET == dev->tuner_type)
1193 static int vidioc_g_frequency (struct file *file, void *priv,
1194 struct v4l2_frequency *f)
1196 struct tm6000_fh *fh =priv;
1197 struct tm6000_core *dev = fh->dev;
1199 if (unlikely(UNSET == dev->tuner_type))
1202 f->type = V4L2_TUNER_ANALOG_TV;
1203 f->frequency = dev->freq;
1205 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1210 static int vidioc_s_frequency (struct file *file, void *priv,
1211 struct v4l2_frequency *f)
1213 struct tm6000_fh *fh =priv;
1214 struct tm6000_core *dev = fh->dev;
1216 if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
1219 if (unlikely(UNSET == dev->tuner_type))
1221 if (unlikely(f->tuner != 0))
1224 // mutex_lock(&dev->lock);
1225 dev->freq = f->frequency;
1226 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1227 // mutex_unlock(&dev->lock);
1232 /* ------------------------------------------------------------------
1233 File operations for the device
1234 ------------------------------------------------------------------*/
1236 static int tm6000_open(struct file *file)
1238 struct video_device *vdev = video_devdata(file);
1239 struct tm6000_core *dev = video_drvdata(file);
1240 struct tm6000_fh *fh;
1241 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1244 printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1245 video_device_node_name(vdev));
1247 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1248 video_device_node_name(vdev));
1251 /* If more than one user, mutex should be added */
1254 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1255 video_device_node_name(vdev), v4l2_type_names[type],
1258 /* allocate + initialize per filehandle data */
1259 fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1265 file->private_data = fh;
1268 fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1269 dev->fourcc = format[0].fourcc;
1271 fh->fmt = format_by_fourcc(dev->fourcc);
1273 tm6000_get_std_res (dev);
1275 fh->width = dev->width;
1276 fh->height = dev->height;
1278 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1279 "dev->vidq=0x%08lx\n",
1280 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1281 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1282 "queued=%d\n",list_empty(&dev->vidq.queued));
1283 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1284 "active=%d\n",list_empty(&dev->vidq.active));
1286 /* initialize hardware on analog mode */
1287 if (dev->mode!=TM6000_MODE_ANALOG) {
1288 rc=tm6000_init_analog_mode (dev);
1292 /* Put all controls at a sane state */
1293 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1294 qctl_regs[i] =tm6000_qctrl[i].default_value;
1296 dev->mode=TM6000_MODE_ANALOG;
1299 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1302 V4L2_FIELD_INTERLACED,
1303 sizeof(struct tm6000_buffer),fh);
1309 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1311 struct tm6000_fh *fh = file->private_data;
1313 if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1314 if (res_locked(fh->dev))
1317 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1318 file->f_flags & O_NONBLOCK);
1324 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1326 struct tm6000_fh *fh = file->private_data;
1327 struct tm6000_buffer *buf;
1329 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1332 if (res_get(fh->dev,fh)) {
1333 /* streaming capture */
1334 if (list_empty(&fh->vb_vidq.stream))
1336 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1338 /* read() capture */
1339 return videobuf_poll_stream(file, &fh->vb_vidq,
1342 poll_wait(file, &buf->vb.done, wait);
1343 if (buf->vb.state == VIDEOBUF_DONE ||
1344 buf->vb.state == VIDEOBUF_ERROR)
1345 return POLLIN|POLLRDNORM;
1349 static int tm6000_release(struct file *file)
1351 struct tm6000_fh *fh = file->private_data;
1352 struct tm6000_core *dev = fh->dev;
1353 struct video_device *vdev = video_devdata(file);
1355 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1356 video_device_node_name(vdev), dev->users);
1361 tm6000_uninit_isoc(dev);
1362 videobuf_mmap_free(&fh->vb_vidq);
1370 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1372 struct tm6000_fh *fh = file->private_data;
1375 ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
1380 static struct v4l2_file_operations tm6000_fops = {
1381 .owner = THIS_MODULE,
1382 .open = tm6000_open,
1383 .release = tm6000_release,
1384 .ioctl = video_ioctl2, /* V4L2 ioctl handler */
1385 .read = tm6000_read,
1386 .poll = tm6000_poll,
1387 .mmap = tm6000_mmap,
1390 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1391 .vidioc_querycap = vidioc_querycap,
1392 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1393 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1394 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1395 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1396 .vidioc_s_std = vidioc_s_std,
1397 .vidioc_enum_input = vidioc_enum_input,
1398 .vidioc_g_input = vidioc_g_input,
1399 .vidioc_s_input = vidioc_s_input,
1400 .vidioc_queryctrl = vidioc_queryctrl,
1401 .vidioc_g_ctrl = vidioc_g_ctrl,
1402 .vidioc_s_ctrl = vidioc_s_ctrl,
1403 .vidioc_g_tuner = vidioc_g_tuner,
1404 .vidioc_s_tuner = vidioc_s_tuner,
1405 .vidioc_g_frequency = vidioc_g_frequency,
1406 .vidioc_s_frequency = vidioc_s_frequency,
1407 .vidioc_streamon = vidioc_streamon,
1408 .vidioc_streamoff = vidioc_streamoff,
1409 .vidioc_reqbufs = vidioc_reqbufs,
1410 .vidioc_querybuf = vidioc_querybuf,
1411 .vidioc_qbuf = vidioc_qbuf,
1412 .vidioc_dqbuf = vidioc_dqbuf,
1413 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1414 .vidiocgmbuf = vidiocgmbuf,
1418 static struct video_device tm6000_template = {
1420 .fops = &tm6000_fops,
1421 .ioctl_ops = &video_ioctl_ops,
1422 .release = video_device_release,
1423 .tvnorms = TM6000_STD,
1424 .current_norm = V4L2_STD_NTSC_M,
1427 /* -----------------------------------------------------------------
1428 Initialization and module stuff
1429 ------------------------------------------------------------------*/
1431 int tm6000_v4l2_register(struct tm6000_core *dev)
1434 struct video_device *vfd;
1436 vfd = video_device_alloc();
1442 /* init video dma queues */
1443 INIT_LIST_HEAD(&dev->vidq.active);
1444 INIT_LIST_HEAD(&dev->vidq.queued);
1446 memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
1447 dev->vfd->debug=tm6000_debug;
1448 vfd->v4l2_dev = &dev->v4l2_dev;
1449 video_set_drvdata(vfd, dev);
1451 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1452 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1456 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1458 video_unregister_device(dev->vfd);
1463 int tm6000_v4l2_exit(void)
1468 module_param(video_nr, int, 0);
1469 MODULE_PARM_DESC(video_nr,"Allow changing video device number");
1471 module_param_named (debug, tm6000_debug, int, 0444);
1472 MODULE_PARM_DESC(debug,"activates debug info");
1474 module_param(vid_limit,int,0644);
1475 MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");