![Stefan Ringel](/assets/img/avatar_default.png)
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1566 lines
38 KiB
C
1566 lines
38 KiB
C
/*
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tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
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Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
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Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
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- Fixed module load/unload
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation version 2
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/random.h>
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#include <linux/version.h>
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#include <linux/usb.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/highmem.h>
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#include <linux/freezer.h>
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#include "tm6000-regs.h"
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#include "tm6000.h"
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#define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
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/* Limits minimum and default number of buffers */
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#define TM6000_MIN_BUF 4
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#define TM6000_DEF_BUF 8
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#define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
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/* Declare static vars that will be used as parameters */
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static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
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static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
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/* Debug level */
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int tm6000_debug;
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/* supported controls */
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static struct v4l2_queryctrl tm6000_qctrl[] = {
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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.default_value = 54,
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.flags = 0,
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}, {
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 255,
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.step = 0x1,
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.default_value = 119,
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.flags = 0,
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}, {
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Saturation",
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.minimum = 0,
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.maximum = 255,
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.step = 0x1,
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.default_value = 112,
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.flags = 0,
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}, {
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.id = V4L2_CID_HUE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Hue",
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.minimum = -128,
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.maximum = 127,
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.step = 0x1,
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.default_value = 0,
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.flags = 0,
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}
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};
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static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
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static struct tm6000_fmt format[] = {
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{
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.name = "4:2:2, packed, YVY2",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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}, {
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.name = "4:2:2, packed, UYVY",
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16,
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}, {
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.name = "A/V + VBI mux packet",
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.fourcc = V4L2_PIX_FMT_TM6000,
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.depth = 16,
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}
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};
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/* ------------------------------------------------------------------
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DMA and thread functions
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------------------------------------------------------------------*/
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#define norm_maxw(a) 720
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#define norm_maxh(a) 576
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#define norm_minw(a) norm_maxw(a)
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#define norm_minh(a) norm_maxh(a)
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/*
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* video-buf generic routine to get the next available buffer
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*/
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static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
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struct tm6000_buffer **buf)
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{
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struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
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char *outp;
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if (list_empty(&dma_q->active)) {
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dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
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*buf = NULL;
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return;
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}
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*buf = list_entry(dma_q->active.next,
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struct tm6000_buffer, vb.queue);
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if (!buf)
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return;
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/* Cleans up buffer - Usefull for testing for frame/URB loss */
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outp = videobuf_to_vmalloc(&(*buf)->vb);
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// if (outp)
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// memset(outp, 0, (*buf)->vb.size);
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return;
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}
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/*
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* Announces that a buffer were filled and request the next
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*/
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static inline void buffer_filled(struct tm6000_core *dev,
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struct tm6000_dmaqueue *dma_q,
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struct tm6000_buffer *buf)
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{
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/* Advice that buffer was filled */
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dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
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buf->vb.state = VIDEOBUF_DONE;
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buf->vb.field_count++;
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do_gettimeofday(&buf->vb.ts);
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list_del(&buf->vb.queue);
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wake_up(&buf->vb.done);
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}
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const char *tm6000_msg_type[] = {
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"unknown(0)", /* 0 */
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"video", /* 1 */
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"audio", /* 2 */
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"vbi", /* 3 */
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"pts", /* 4 */
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"err", /* 5 */
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"unknown(6)", /* 6 */
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"unknown(7)", /* 7 */
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};
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/*
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* Identify the tm5600/6000 buffer header type and properly handles
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*/
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static int copy_packet(struct urb *urb, u32 header, u8 **ptr, u8 *endp,
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u8 *out_p, struct tm6000_buffer **buf)
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{
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struct tm6000_dmaqueue *dma_q = urb->context;
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struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
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u8 c;
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unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
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int rc = 0;
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/* FIXME: move to tm6000-isoc */
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static int last_line = -2, start_line = -2, last_field = -2;
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/* FIXME: this is the hardcoded window size
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*/
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unsigned int linewidth = (*buf)->vb.width << 1;
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if (!dev->isoc_ctl.cmd) {
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c = (header >> 24) & 0xff;
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/* split the header fields */
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size = ((header & 0x7e) << 1);
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if (size > 0)
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size -= 4;
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block = (header >> 7) & 0xf;
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field = (header >> 11) & 0x1;
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line = (header >> 12) & 0x1ff;
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cmd = (header >> 21) & 0x7;
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/* Validates header fields */
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if(size > TM6000_URB_MSG_LEN)
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size = TM6000_URB_MSG_LEN;
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if (cmd == TM6000_URB_MSG_VIDEO) {
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if ((block+1)*TM6000_URB_MSG_LEN>linewidth)
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cmd = TM6000_URB_MSG_ERR;
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/* FIXME: Mounts the image as field0+field1
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* It should, instead, check if the user selected
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* entrelaced or non-entrelaced mode
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*/
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pos = ((line << 1) - field - 1) * linewidth +
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block * TM6000_URB_MSG_LEN;
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/* Don't allow to write out of the buffer */
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if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size) {
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dprintk(dev, V4L2_DEBUG_ISOC,
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"ERR: size=%d, num=%d, line=%d, "
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"field=%d\n",
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size, block, line, field);
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cmd = TM6000_URB_MSG_ERR;
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}
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} else {
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pos=0;
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}
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/* Prints debug info */
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dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, "
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" line=%d, field=%d\n",
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size, block, line, field);
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if ((last_line!=line)&&(last_line+1!=line) &&
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(cmd != TM6000_URB_MSG_ERR) ) {
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if (cmd != TM6000_URB_MSG_VIDEO) {
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dprintk(dev, V4L2_DEBUG_ISOC, "cmd=%d, "
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"size=%d, num=%d, line=%d, field=%d\n",
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cmd, size, block, line, field);
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}
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if (start_line<0)
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start_line=last_line;
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/* Prints debug info */
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dprintk(dev, V4L2_DEBUG_ISOC, "lines= %d-%d, "
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"field=%d\n",
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start_line, last_line, field);
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if ((start_line<6 && last_line>200) &&
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(last_field != field) ) {
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dev->isoc_ctl.nfields++;
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if (dev->isoc_ctl.nfields>=2) {
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dev->isoc_ctl.nfields=0;
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/* Announces that a new buffer were filled */
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buffer_filled (dev, dma_q, *buf);
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dprintk(dev, V4L2_DEBUG_ISOC,
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"new buffer filled\n");
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get_next_buf (dma_q, buf);
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if (!*buf)
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return rc;
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out_p = videobuf_to_vmalloc(&((*buf)->vb));
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if (!out_p)
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return rc;
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pos = dev->isoc_ctl.pos = 0;
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}
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}
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start_line=line;
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last_field=field;
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}
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if (cmd == TM6000_URB_MSG_VIDEO)
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last_line = line;
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pktsize = TM6000_URB_MSG_LEN;
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} else {
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/* Continue the last copy */
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cmd = dev->isoc_ctl.cmd;
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size= dev->isoc_ctl.size;
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pos = dev->isoc_ctl.pos;
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pktsize = dev->isoc_ctl.pktsize;
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}
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cpysize = (endp-(*ptr) > size) ? size : endp - *ptr;
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if (cpysize) {
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/* handles each different URB message */
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switch(cmd) {
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case TM6000_URB_MSG_VIDEO:
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/* Fills video buffer */
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memcpy(&out_p[pos], *ptr, cpysize);
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break;
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case TM6000_URB_MSG_PTS:
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break;
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case TM6000_URB_MSG_AUDIO:
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/* Need some code to process audio */
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printk ("%ld: cmd=%s, size=%d\n", jiffies,
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tm6000_msg_type[cmd],size);
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break;
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case TM6000_URB_MSG_VBI:
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break;
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default:
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dprintk (dev, V4L2_DEBUG_ISOC, "cmd=%s, size=%d\n",
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tm6000_msg_type[cmd],size);
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}
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}
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if (cpysize<size) {
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/* End of URB packet, but cmd processing is not
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* complete. Preserve the state for a next packet
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*/
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dev->isoc_ctl.pos = pos+cpysize;
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dev->isoc_ctl.size= size-cpysize;
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dev->isoc_ctl.cmd = cmd;
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dev->isoc_ctl.pktsize = pktsize-cpysize;
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(*ptr)+=cpysize;
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} else {
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dev->isoc_ctl.cmd = 0;
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(*ptr)+=pktsize;
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}
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return rc;
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}
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static int copy_streams(u8 *data, unsigned long len,
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struct urb *urb)
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{
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struct tm6000_dmaqueue *dma_q = urb->context;
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struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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u8 *ptr=data, *endp=data+len;
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unsigned long header=0;
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int rc=0;
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struct tm6000_buffer *buf;
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char *outp = NULL;
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get_next_buf(dma_q, &buf);
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if (buf)
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outp = videobuf_to_vmalloc(&buf->vb);
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if (!outp)
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return 0;
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for (ptr=data; ptr<endp;) {
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if (!dev->isoc_ctl.cmd) {
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u8 *p=(u8 *)&dev->isoc_ctl.tmp_buf;
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/* FIXME: This seems very complex
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* It just recovers up to 3 bytes of the header that
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* might be at the previous packet
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*/
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if (dev->isoc_ctl.tmp_buf_len) {
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while (dev->isoc_ctl.tmp_buf_len) {
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if ( *(ptr+3-dev->isoc_ctl.tmp_buf_len) == 0x47) {
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break;
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}
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p++;
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dev->isoc_ctl.tmp_buf_len--;
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}
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if (dev->isoc_ctl.tmp_buf_len) {
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memcpy(&header, p,
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dev->isoc_ctl.tmp_buf_len);
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memcpy((u8 *)&header +
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dev->isoc_ctl.tmp_buf_len,
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ptr,
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4 - dev->isoc_ctl.tmp_buf_len);
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ptr += 4 - dev->isoc_ctl.tmp_buf_len;
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goto HEADER;
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}
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}
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/* Seek for sync */
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for (;ptr<endp-3;ptr++) {
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if (*(ptr+3)==0x47)
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break;
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}
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if (ptr+3>=endp) {
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dev->isoc_ctl.tmp_buf_len=endp-ptr;
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memcpy (&dev->isoc_ctl.tmp_buf,ptr,
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dev->isoc_ctl.tmp_buf_len);
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dev->isoc_ctl.cmd=0;
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return rc;
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}
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/* Get message header */
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header=*(unsigned long *)ptr;
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ptr+=4;
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}
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HEADER:
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/* Copy or continue last copy */
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rc=copy_packet(urb,header,&ptr,endp,outp,&buf);
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if (rc<0) {
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buf=NULL;
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printk(KERN_ERR "tm6000: buffer underrun at %ld\n",
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jiffies);
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return rc;
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}
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if (!buf)
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return 0;
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}
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return 0;
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}
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/*
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* Identify the tm5600/6000 buffer header type and properly handles
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*/
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static int copy_multiplexed(u8 *ptr, unsigned long len,
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struct urb *urb)
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{
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struct tm6000_dmaqueue *dma_q = urb->context;
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struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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unsigned int pos=dev->isoc_ctl.pos,cpysize;
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int rc=1;
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struct tm6000_buffer *buf;
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char *outp = NULL;
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get_next_buf(dma_q, &buf);
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if (buf)
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outp = videobuf_to_vmalloc(&buf->vb);
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if (!outp)
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return 0;
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while (len>0) {
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cpysize=min(len,buf->vb.size-pos);
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//printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
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memcpy(&outp[pos], ptr, cpysize);
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pos+=cpysize;
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ptr+=cpysize;
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len-=cpysize;
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if (pos >= buf->vb.size) {
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pos=0;
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/* Announces that a new buffer were filled */
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buffer_filled (dev, dma_q, buf);
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dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
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get_next_buf (dma_q, &buf);
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if (!buf)
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break;
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outp = videobuf_to_vmalloc(&(buf->vb));
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if (!outp)
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return rc;
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pos = 0;
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}
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}
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dev->isoc_ctl.pos=pos;
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return rc;
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}
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static void inline print_err_status (struct tm6000_core *dev,
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int packet, int status)
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{
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char *errmsg = "Unknown";
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switch(status) {
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case -ENOENT:
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errmsg = "unlinked synchronuously";
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break;
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case -ECONNRESET:
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errmsg = "unlinked asynchronuously";
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break;
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case -ENOSR:
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errmsg = "Buffer error (overrun)";
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break;
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case -EPIPE:
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errmsg = "Stalled (device not responding)";
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break;
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case -EOVERFLOW:
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errmsg = "Babble (bad cable?)";
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break;
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case -EPROTO:
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errmsg = "Bit-stuff error (bad cable?)";
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break;
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case -EILSEQ:
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errmsg = "CRC/Timeout (could be anything)";
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break;
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case -ETIME:
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errmsg = "Device does not respond";
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break;
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}
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if (packet<0) {
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dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
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status, errmsg);
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} else {
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dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
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packet, status, errmsg);
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}
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}
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|
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/*
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* Controls the isoc copy of each urb packet
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*/
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static inline int tm6000_isoc_copy(struct urb *urb)
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{
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|
struct tm6000_dmaqueue *dma_q = urb->context;
|
|
struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
|
|
struct tm6000_buffer *buf;
|
|
int i, len=0, rc=1, status;
|
|
char *p;
|
|
|
|
if (urb->status < 0) {
|
|
print_err_status (dev, -1, urb->status);
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < urb->number_of_packets; i++) {
|
|
status = urb->iso_frame_desc[i].status;
|
|
|
|
if (status<0) {
|
|
print_err_status (dev,i,status);
|
|
continue;
|
|
}
|
|
|
|
len = urb->iso_frame_desc[i].actual_length;
|
|
|
|
if (len > 0) {
|
|
p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
|
|
if (!urb->iso_frame_desc[i].status) {
|
|
if ((dev->fourcc)==V4L2_PIX_FMT_TM6000) {
|
|
rc=copy_multiplexed(p, len, urb);
|
|
if (rc<=0)
|
|
return rc;
|
|
} else {
|
|
copy_streams(p, len, urb);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
URB control
|
|
------------------------------------------------------------------*/
|
|
|
|
/*
|
|
* IRQ callback, called by URB callback
|
|
*/
|
|
static void tm6000_irq_callback(struct urb *urb)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = urb->context;
|
|
struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
|
|
int i;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
spin_lock(&dev->slock);
|
|
tm6000_isoc_copy(urb);
|
|
spin_unlock(&dev->slock);
|
|
|
|
/* Reset urb buffers */
|
|
for (i = 0; i < urb->number_of_packets; i++) {
|
|
urb->iso_frame_desc[i].status = 0;
|
|
urb->iso_frame_desc[i].actual_length = 0;
|
|
}
|
|
|
|
urb->status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (urb->status)
|
|
tm6000_err("urb resubmit failed (error=%i)\n",
|
|
urb->status);
|
|
}
|
|
|
|
/*
|
|
* Stop and Deallocate URBs
|
|
*/
|
|
static void tm6000_uninit_isoc(struct tm6000_core *dev)
|
|
{
|
|
struct urb *urb;
|
|
int i;
|
|
|
|
dev->isoc_ctl.nfields = -1;
|
|
dev->isoc_ctl.buf = NULL;
|
|
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
urb=dev->isoc_ctl.urb[i];
|
|
if (urb) {
|
|
usb_kill_urb(urb);
|
|
usb_unlink_urb(urb);
|
|
if (dev->isoc_ctl.transfer_buffer[i]) {
|
|
usb_free_coherent(dev->udev,
|
|
urb->transfer_buffer_length,
|
|
dev->isoc_ctl.transfer_buffer[i],
|
|
urb->transfer_dma);
|
|
}
|
|
usb_free_urb(urb);
|
|
dev->isoc_ctl.urb[i] = NULL;
|
|
}
|
|
dev->isoc_ctl.transfer_buffer[i] = NULL;
|
|
}
|
|
|
|
kfree (dev->isoc_ctl.urb);
|
|
kfree (dev->isoc_ctl.transfer_buffer);
|
|
|
|
dev->isoc_ctl.urb=NULL;
|
|
dev->isoc_ctl.transfer_buffer=NULL;
|
|
dev->isoc_ctl.num_bufs = 0;
|
|
|
|
dev->isoc_ctl.num_bufs=0;
|
|
}
|
|
|
|
/*
|
|
* Allocate URBs and start IRQ
|
|
*/
|
|
static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = &dev->vidq;
|
|
int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
|
|
struct urb *urb;
|
|
|
|
/* De-allocates all pending stuff */
|
|
tm6000_uninit_isoc(dev);
|
|
|
|
usb_set_interface(dev->udev,
|
|
dev->isoc_in.bInterfaceNumber,
|
|
dev->isoc_in.bAlternateSetting);
|
|
|
|
pipe = usb_rcvisocpipe(dev->udev,
|
|
dev->isoc_in.endp->desc.bEndpointAddress &
|
|
USB_ENDPOINT_NUMBER_MASK);
|
|
|
|
size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
|
|
|
|
if (size > dev->isoc_in.maxsize)
|
|
size = dev->isoc_in.maxsize;
|
|
|
|
dev->isoc_ctl.max_pkt_size = size;
|
|
|
|
max_packets = ( framesize + size - 1) / size;
|
|
|
|
if (max_packets > TM6000_MAX_ISO_PACKETS)
|
|
max_packets = TM6000_MAX_ISO_PACKETS;
|
|
|
|
sb_size = max_packets * size;
|
|
|
|
dev->isoc_ctl.num_bufs = num_bufs;
|
|
|
|
dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
|
|
if (!dev->isoc_ctl.urb) {
|
|
tm6000_err("cannot alloc memory for usb buffers\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
|
|
GFP_KERNEL);
|
|
if (!dev->isoc_ctl.transfer_buffer) {
|
|
tm6000_err("cannot allocate memory for usbtransfer\n");
|
|
kfree(dev->isoc_ctl.urb);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
|
|
" (%d bytes) of %d bytes each to handle %u size\n",
|
|
max_packets, num_bufs, sb_size,
|
|
dev->isoc_in.maxsize, size);
|
|
|
|
/* allocate urbs and transfer buffers */
|
|
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
urb = usb_alloc_urb(max_packets, GFP_KERNEL);
|
|
if (!urb) {
|
|
tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
|
|
tm6000_uninit_isoc(dev);
|
|
usb_free_urb(urb);
|
|
return -ENOMEM;
|
|
}
|
|
dev->isoc_ctl.urb[i] = urb;
|
|
|
|
dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
|
|
sb_size, GFP_KERNEL, &urb->transfer_dma);
|
|
if (!dev->isoc_ctl.transfer_buffer[i]) {
|
|
tm6000_err ("unable to allocate %i bytes for transfer"
|
|
" buffer %i%s\n",
|
|
sb_size, i,
|
|
in_interrupt()?" while in int":"");
|
|
tm6000_uninit_isoc(dev);
|
|
return -ENOMEM;
|
|
}
|
|
memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
|
|
|
|
usb_fill_bulk_urb(urb, dev->udev, pipe,
|
|
dev->isoc_ctl.transfer_buffer[i], sb_size,
|
|
tm6000_irq_callback, dma_q);
|
|
urb->interval = dev->isoc_in.endp->desc.bInterval;
|
|
urb->number_of_packets = max_packets;
|
|
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
for (j = 0; j < max_packets; j++) {
|
|
urb->iso_frame_desc[j].offset = size * j;
|
|
urb->iso_frame_desc[j].length = size;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm6000_start_thread( struct tm6000_core *dev)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = &dev->vidq;
|
|
int i;
|
|
|
|
dma_q->frame=0;
|
|
dma_q->ini_jiffies=jiffies;
|
|
|
|
init_waitqueue_head(&dma_q->wq);
|
|
|
|
/* submit urbs and enables IRQ */
|
|
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
|
|
if (rc) {
|
|
tm6000_err("submit of urb %i failed (error=%i)\n", i,
|
|
rc);
|
|
tm6000_uninit_isoc(dev);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
Videobuf operations
|
|
------------------------------------------------------------------*/
|
|
|
|
static int
|
|
buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
|
|
{
|
|
struct tm6000_fh *fh = vq->priv_data;
|
|
|
|
*size = fh->fmt->depth * fh->width * fh->height >> 3;
|
|
if (0 == *count)
|
|
*count = TM6000_DEF_BUF;
|
|
|
|
if (*count < TM6000_MIN_BUF) {
|
|
*count=TM6000_MIN_BUF;
|
|
}
|
|
|
|
while (*size * *count > vid_limit * 1024 * 1024)
|
|
(*count)--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
|
|
{
|
|
struct tm6000_fh *fh = vq->priv_data;
|
|
struct tm6000_core *dev = fh->dev;
|
|
unsigned long flags;
|
|
|
|
if (in_interrupt())
|
|
BUG();
|
|
|
|
/* We used to wait for the buffer to finish here, but this didn't work
|
|
because, as we were keeping the state as VIDEOBUF_QUEUED,
|
|
videobuf_queue_cancel marked it as finished for us.
|
|
(Also, it could wedge forever if the hardware was misconfigured.)
|
|
|
|
This should be safe; by the time we get here, the buffer isn't
|
|
queued anymore. If we ever start marking the buffers as
|
|
VIDEOBUF_ACTIVE, it won't be, though.
|
|
*/
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
if (dev->isoc_ctl.buf == buf)
|
|
dev->isoc_ctl.buf = NULL;
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
|
|
videobuf_vmalloc_free(&buf->vb);
|
|
buf->vb.state = VIDEOBUF_NEEDS_INIT;
|
|
}
|
|
|
|
static int
|
|
buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct tm6000_fh *fh = vq->priv_data;
|
|
struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
struct tm6000_core *dev = fh->dev;
|
|
int rc = 0, urb_init = 0;
|
|
|
|
BUG_ON(NULL == fh->fmt);
|
|
|
|
|
|
/* FIXME: It assumes depth=2 */
|
|
/* The only currently supported format is 16 bits/pixel */
|
|
buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
return -EINVAL;
|
|
|
|
if (buf->fmt != fh->fmt ||
|
|
buf->vb.width != fh->width ||
|
|
buf->vb.height != fh->height ||
|
|
buf->vb.field != field) {
|
|
buf->fmt = fh->fmt;
|
|
buf->vb.width = fh->width;
|
|
buf->vb.height = fh->height;
|
|
buf->vb.field = field;
|
|
buf->vb.state = VIDEOBUF_NEEDS_INIT;
|
|
}
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
|
|
goto fail;
|
|
urb_init = 1;
|
|
}
|
|
|
|
if (!dev->isoc_ctl.num_bufs)
|
|
urb_init = 1;
|
|
|
|
if (urb_init) {
|
|
rc = tm6000_prepare_isoc(dev, buf->vb.size);
|
|
if (rc < 0)
|
|
goto fail;
|
|
|
|
rc = tm6000_start_thread(dev);
|
|
if (rc < 0)
|
|
goto fail;
|
|
|
|
}
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
return 0;
|
|
|
|
fail:
|
|
free_buffer(vq, buf);
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
struct tm6000_fh *fh = vq->priv_data;
|
|
struct tm6000_core *dev = fh->dev;
|
|
struct tm6000_dmaqueue *vidq = &dev->vidq;
|
|
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
list_add_tail(&buf->vb.queue, &vidq->active);
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
|
|
free_buffer(vq,buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops tm6000_video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------
|
|
IOCTL handling
|
|
------------------------------------------------------------------*/
|
|
|
|
static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
|
|
{
|
|
/* is it free? */
|
|
mutex_lock(&dev->lock);
|
|
if (dev->resources) {
|
|
/* no, someone else uses it */
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
/* it's free, grab it */
|
|
dev->resources =1;
|
|
dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
|
|
mutex_unlock(&dev->lock);
|
|
return 1;
|
|
}
|
|
|
|
static int res_locked(struct tm6000_core *dev)
|
|
{
|
|
return (dev->resources);
|
|
}
|
|
|
|
static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
|
|
{
|
|
mutex_lock(&dev->lock);
|
|
dev->resources = 0;
|
|
dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
|
|
mutex_unlock(&dev->lock);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
IOCTL vidioc handling
|
|
------------------------------------------------------------------*/
|
|
static int vidioc_querycap (struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
// struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
|
|
|
|
strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
|
|
strlcpy(cap->card,"Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
|
|
// strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
|
|
cap->version = TM6000_VERSION;
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_STREAMING |
|
|
V4L2_CAP_TUNER |
|
|
V4L2_CAP_READWRITE;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (unlikely(f->index >= ARRAY_SIZE(format)))
|
|
return -EINVAL;
|
|
|
|
strlcpy(f->description,format[f->index].name,sizeof(f->description));
|
|
f->pixelformat = format[f->index].fourcc;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
f->fmt.pix.width = fh->width;
|
|
f->fmt.pix.height = fh->height;
|
|
f->fmt.pix.field = fh->vb_vidq.field;
|
|
f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fh->fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(format); i++)
|
|
if (format[i].fourcc == fourcc)
|
|
return format+i;
|
|
return NULL;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
|
|
struct tm6000_fmt *fmt;
|
|
enum v4l2_field field;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (NULL == fmt) {
|
|
dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
|
|
" invalid.\n", f->fmt.pix.pixelformat);
|
|
return -EINVAL;
|
|
}
|
|
|
|
field = f->fmt.pix.field;
|
|
|
|
if (field == V4L2_FIELD_ANY) {
|
|
// field=V4L2_FIELD_INTERLACED;
|
|
field=V4L2_FIELD_SEQ_TB;
|
|
} else if (V4L2_FIELD_INTERLACED != field) {
|
|
dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
tm6000_get_std_res (dev);
|
|
|
|
f->fmt.pix.width = dev->width;
|
|
f->fmt.pix.height = dev->height;
|
|
|
|
f->fmt.pix.width &= ~0x01;
|
|
|
|
f->fmt.pix.field = field;
|
|
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*FIXME: This seems to be generic enough to be at videodev2 */
|
|
static int vidioc_s_fmt_vid_cap (struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
int ret = vidioc_try_fmt_vid_cap(file,fh,f);
|
|
if (ret < 0)
|
|
return (ret);
|
|
|
|
fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
fh->width = f->fmt.pix.width;
|
|
fh->height = f->fmt.pix.height;
|
|
fh->vb_vidq.field = f->fmt.pix.field;
|
|
fh->type = f->type;
|
|
|
|
dev->fourcc = f->fmt.pix.pixelformat;
|
|
|
|
tm6000_set_fourcc_format(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int vidioc_reqbufs (struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *p)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
return (videobuf_reqbufs(&fh->vb_vidq, p));
|
|
}
|
|
|
|
static int vidioc_querybuf (struct file *file, void *priv,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
return (videobuf_querybuf(&fh->vb_vidq, p));
|
|
}
|
|
|
|
static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
return (videobuf_qbuf(&fh->vb_vidq, p));
|
|
}
|
|
|
|
static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
return (videobuf_dqbuf(&fh->vb_vidq, p,
|
|
file->f_flags & O_NONBLOCK));
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
|
|
return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
|
|
}
|
|
#endif
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
if (i != fh->type)
|
|
return -EINVAL;
|
|
|
|
if (!res_get(dev,fh))
|
|
return -EBUSY;
|
|
return (videobuf_streamon(&fh->vb_vidq));
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
if (i != fh->type)
|
|
return -EINVAL;
|
|
|
|
videobuf_streamoff(&fh->vb_vidq);
|
|
res_free(dev,fh);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
|
|
{
|
|
int rc=0;
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
rc=tm6000_set_standard (dev, norm);
|
|
|
|
fh->width = dev->width;
|
|
fh->height = dev->height;
|
|
|
|
if (rc<0)
|
|
return rc;
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_input (struct file *file, void *priv,
|
|
struct v4l2_input *inp)
|
|
{
|
|
switch (inp->index) {
|
|
case TM6000_INPUT_TV:
|
|
inp->type = V4L2_INPUT_TYPE_TUNER;
|
|
strcpy(inp->name,"Television");
|
|
break;
|
|
case TM6000_INPUT_COMPOSITE:
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(inp->name,"Composite");
|
|
break;
|
|
case TM6000_INPUT_SVIDEO:
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(inp->name,"S-Video");
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
inp->std = TM6000_STD;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
*i=dev->input;
|
|
|
|
return 0;
|
|
}
|
|
static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
int rc=0;
|
|
char buf[1];
|
|
|
|
switch (i) {
|
|
case TM6000_INPUT_TV:
|
|
dev->input=i;
|
|
*buf=0;
|
|
break;
|
|
case TM6000_INPUT_COMPOSITE:
|
|
case TM6000_INPUT_SVIDEO:
|
|
dev->input=i;
|
|
*buf=1;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
|
|
REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
|
|
|
|
if (!rc) {
|
|
dev->input=i;
|
|
rc=vidioc_s_std (file, priv, &dev->vfd->current_norm);
|
|
}
|
|
|
|
return (rc);
|
|
}
|
|
|
|
/* --- controls ---------------------------------------------- */
|
|
static int vidioc_queryctrl (struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qc)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
|
|
if (qc->id && qc->id == tm6000_qctrl[i].id) {
|
|
memcpy(qc, &(tm6000_qctrl[i]),
|
|
sizeof(*qc));
|
|
return (0);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_g_ctrl (struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct tm6000_fh *fh=priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
int val;
|
|
|
|
/* FIXME: Probably, those won't work! Maybe we need shadow regs */
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_CONTRAST:
|
|
val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
|
|
break;
|
|
case V4L2_CID_BRIGHTNESS:
|
|
val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
|
|
return 0;
|
|
case V4L2_CID_SATURATION:
|
|
val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
|
|
return 0;
|
|
case V4L2_CID_HUE:
|
|
val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (val<0)
|
|
return val;
|
|
|
|
ctrl->value=val;
|
|
|
|
return 0;
|
|
}
|
|
static int vidioc_s_ctrl (struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct tm6000_fh *fh =priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
u8 val=ctrl->value;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_CONTRAST:
|
|
tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
|
|
return 0;
|
|
case V4L2_CID_BRIGHTNESS:
|
|
tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
|
|
return 0;
|
|
case V4L2_CID_SATURATION:
|
|
tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
|
|
return 0;
|
|
case V4L2_CID_HUE:
|
|
tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
|
|
return 0;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_g_tuner (struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct tm6000_fh *fh =priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Television");
|
|
t->type = V4L2_TUNER_ANALOG_TV;
|
|
t->capability = V4L2_TUNER_CAP_NORM;
|
|
t->rangehigh = 0xffffffffUL;
|
|
t->rxsubchans = V4L2_TUNER_SUB_MONO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_tuner (struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct tm6000_fh *fh =priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (UNSET == dev->tuner_type)
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_frequency (struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct tm6000_fh *fh =priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
|
|
f->type = V4L2_TUNER_ANALOG_TV;
|
|
f->frequency = dev->freq;
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_frequency (struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct tm6000_fh *fh =priv;
|
|
struct tm6000_core *dev = fh->dev;
|
|
|
|
if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
if (unlikely(f->tuner != 0))
|
|
return -EINVAL;
|
|
|
|
// mutex_lock(&dev->lock);
|
|
dev->freq = f->frequency;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
|
|
// mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
File operations for the device
|
|
------------------------------------------------------------------*/
|
|
|
|
static int tm6000_open(struct file *file)
|
|
{
|
|
struct video_device *vdev = video_devdata(file);
|
|
struct tm6000_core *dev = video_drvdata(file);
|
|
struct tm6000_fh *fh;
|
|
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
int i,rc;
|
|
|
|
printk(KERN_INFO "tm6000: open called (dev=%s)\n",
|
|
video_device_node_name(vdev));
|
|
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
|
|
video_device_node_name(vdev));
|
|
|
|
|
|
/* If more than one user, mutex should be added */
|
|
dev->users++;
|
|
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
|
|
video_device_node_name(vdev), v4l2_type_names[type],
|
|
dev->users);
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh),GFP_KERNEL);
|
|
if (NULL == fh) {
|
|
dev->users--;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
file->private_data = fh;
|
|
fh->dev = dev;
|
|
|
|
fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
dev->fourcc = format[0].fourcc;
|
|
|
|
fh->fmt = format_by_fourcc(dev->fourcc);
|
|
|
|
tm6000_get_std_res (dev);
|
|
|
|
fh->width = dev->width;
|
|
fh->height = dev->height;
|
|
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
|
|
"dev->vidq=0x%08lx\n",
|
|
(unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
|
|
"queued=%d\n",list_empty(&dev->vidq.queued));
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
|
|
"active=%d\n",list_empty(&dev->vidq.active));
|
|
|
|
/* initialize hardware on analog mode */
|
|
if (dev->mode!=TM6000_MODE_ANALOG) {
|
|
rc=tm6000_init_analog_mode (dev);
|
|
if (rc<0)
|
|
return rc;
|
|
|
|
/* Put all controls at a sane state */
|
|
for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
|
|
qctl_regs[i] =tm6000_qctrl[i].default_value;
|
|
|
|
dev->mode=TM6000_MODE_ANALOG;
|
|
}
|
|
|
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
|
|
NULL, &dev->slock,
|
|
fh->type,
|
|
V4L2_FIELD_INTERLACED,
|
|
sizeof(struct tm6000_buffer),fh);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
|
|
{
|
|
struct tm6000_fh *fh = file->private_data;
|
|
|
|
if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
if (res_locked(fh->dev))
|
|
return -EBUSY;
|
|
|
|
return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
|
|
file->f_flags & O_NONBLOCK);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int
|
|
tm6000_poll(struct file *file, struct poll_table_struct *wait)
|
|
{
|
|
struct tm6000_fh *fh = file->private_data;
|
|
struct tm6000_buffer *buf;
|
|
|
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
|
|
return POLLERR;
|
|
|
|
if (res_get(fh->dev,fh)) {
|
|
/* streaming capture */
|
|
if (list_empty(&fh->vb_vidq.stream))
|
|
return POLLERR;
|
|
buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
|
|
} else {
|
|
/* read() capture */
|
|
return videobuf_poll_stream(file, &fh->vb_vidq,
|
|
wait);
|
|
}
|
|
poll_wait(file, &buf->vb.done, wait);
|
|
if (buf->vb.state == VIDEOBUF_DONE ||
|
|
buf->vb.state == VIDEOBUF_ERROR)
|
|
return POLLIN|POLLRDNORM;
|
|
return 0;
|
|
}
|
|
|
|
static int tm6000_release(struct file *file)
|
|
{
|
|
struct tm6000_fh *fh = file->private_data;
|
|
struct tm6000_core *dev = fh->dev;
|
|
struct video_device *vdev = video_devdata(file);
|
|
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
|
|
video_device_node_name(vdev), dev->users);
|
|
|
|
dev->users--;
|
|
|
|
if (!dev->users) {
|
|
tm6000_uninit_isoc(dev);
|
|
videobuf_mmap_free(&fh->vb_vidq);
|
|
}
|
|
|
|
kfree (fh);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
|
|
{
|
|
struct tm6000_fh *fh = file->private_data;
|
|
int ret;
|
|
|
|
ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct v4l2_file_operations tm6000_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = tm6000_open,
|
|
.release = tm6000_release,
|
|
.ioctl = video_ioctl2, /* V4L2 ioctl handler */
|
|
.read = tm6000_read,
|
|
.poll = tm6000_poll,
|
|
.mmap = tm6000_mmap,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
|
.vidioc_querycap = vidioc_querycap,
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_s_std = vidioc_s_std,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
.vidiocgmbuf = vidiocgmbuf,
|
|
#endif
|
|
};
|
|
|
|
static struct video_device tm6000_template = {
|
|
.name = "tm6000",
|
|
.fops = &tm6000_fops,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.release = video_device_release,
|
|
.tvnorms = TM6000_STD,
|
|
.current_norm = V4L2_STD_NTSC_M,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------
|
|
Initialization and module stuff
|
|
------------------------------------------------------------------*/
|
|
|
|
int tm6000_v4l2_register(struct tm6000_core *dev)
|
|
{
|
|
int ret = -1;
|
|
struct video_device *vfd;
|
|
|
|
vfd = video_device_alloc();
|
|
if(!vfd) {
|
|
return -ENOMEM;
|
|
}
|
|
dev->vfd = vfd;
|
|
|
|
/* init video dma queues */
|
|
INIT_LIST_HEAD(&dev->vidq.active);
|
|
INIT_LIST_HEAD(&dev->vidq.queued);
|
|
|
|
memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
|
|
dev->vfd->debug=tm6000_debug;
|
|
vfd->v4l2_dev = &dev->v4l2_dev;
|
|
video_set_drvdata(vfd, dev);
|
|
|
|
ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
|
|
printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
int tm6000_v4l2_unregister(struct tm6000_core *dev)
|
|
{
|
|
video_unregister_device(dev->vfd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int tm6000_v4l2_exit(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
module_param(video_nr, int, 0);
|
|
MODULE_PARM_DESC(video_nr,"Allow changing video device number");
|
|
|
|
module_param_named (debug, tm6000_debug, int, 0444);
|
|
MODULE_PARM_DESC(debug,"activates debug info");
|
|
|
|
module_param(vid_limit,int,0644);
|
|
MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
|
|
|