// SPDX-License-Identifier: GPL-2.0
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// tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
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//
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// Copyright (c) 2006-2007 Mauro Carvalho Chehab <mchehab@kernel.org>
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//
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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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#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/usb.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-event.h>
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#include <media/tuner.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_NUM_URB_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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static int radio_nr = -1; /* /dev/radioN, -1 for autodetect */
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static bool keep_urb; /* keep urb buffers allocated */
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/* Debug level */
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int tm6000_debug;
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EXPORT_SYMBOL_GPL(tm6000_debug);
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static struct tm6000_fmt format[] = {
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{
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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}, {
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16,
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}, {
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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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*/
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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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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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}
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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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buf->vb.ts = ktime_get_ns();
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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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/*
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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_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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unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
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struct tm6000_buffer *vbuf = NULL;
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char *voutp = NULL;
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unsigned int linewidth;
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if (!dev->radio) {
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/* get video buffer */
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get_next_buf(dma_q, &vbuf);
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if (!vbuf)
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return rc;
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voutp = videobuf_to_vmalloc(&vbuf->vb);
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if (!voutp)
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return 0;
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}
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for (ptr = data; ptr < endp;) {
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if (!dev->isoc_ctl.cmd) {
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/* Header */
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if (dev->isoc_ctl.tmp_buf_len > 0) {
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/* from last urb or packet */
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header = dev->isoc_ctl.tmp_buf;
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if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
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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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}
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dev->isoc_ctl.tmp_buf_len = 0;
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} else {
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if (ptr + 3 >= endp) {
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/* have incomplete header */
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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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return rc;
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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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/* 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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/* 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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pktsize = TM6000_URB_MSG_LEN;
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/*
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* calculate position in buffer and change the buffer
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*/
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switch (cmd) {
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case TM6000_URB_MSG_VIDEO:
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if (!dev->radio) {
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if ((dev->isoc_ctl.vfield != field) &&
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(field == 1)) {
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/*
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* Announces that a new buffer
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* were filled
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*/
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buffer_filled(dev, dma_q, vbuf);
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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, &vbuf);
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if (!vbuf)
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return rc;
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voutp = videobuf_to_vmalloc(&vbuf->vb);
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if (!voutp)
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return rc;
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memset(voutp, 0, vbuf->vb.size);
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}
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linewidth = vbuf->vb.width << 1;
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pos = ((line << 1) - field - 1) *
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linewidth + block * TM6000_URB_MSG_LEN;
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/* Don't allow to write out of the buffer */
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if (pos + size > vbuf->vb.size)
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cmd = TM6000_URB_MSG_ERR;
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dev->isoc_ctl.vfield = field;
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}
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break;
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case TM6000_URB_MSG_VBI:
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break;
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case TM6000_URB_MSG_AUDIO:
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case TM6000_URB_MSG_PTS:
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size = pktsize; /* Size is always 180 bytes */
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break;
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}
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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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field = dev->isoc_ctl.field;
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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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/* copy data in different buffers */
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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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if (vbuf)
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memcpy(&voutp[pos], ptr, cpysize);
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break;
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case TM6000_URB_MSG_AUDIO: {
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int i;
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for (i = 0; i < cpysize; i += 2)
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swab16s((u16 *)(ptr + i));
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tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
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break;
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}
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case TM6000_URB_MSG_VBI:
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/* Need some code to copy vbi buffer */
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break;
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case TM6000_URB_MSG_PTS: {
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/* Need some code to copy pts */
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u32 pts;
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pts = *(u32 *)ptr;
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dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
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field, pts);
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break;
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}
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}
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}
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if (ptr + pktsize > endp) {
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/*
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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.field = field;
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dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
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ptr += endp - ptr;
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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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}
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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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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 inline void 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 synchronously";
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break;
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case -ECONNRESET:
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errmsg = "unlinked asynchronously";
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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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* 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;
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struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
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int i, len = 0, rc = 1, status;
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char *p;
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if (urb->status < 0) {
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print_err_status(dev, -1, urb->status);
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return 0;
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}
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for (i = 0; i < urb->number_of_packets; i++) {
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status = urb->iso_frame_desc[i].status;
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if (status < 0) {
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print_err_status(dev, i, status);
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continue;
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}
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len = urb->iso_frame_desc[i].actual_length;
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if (len > 0) {
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p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
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if (!urb->iso_frame_desc[i].status) {
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if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
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rc = copy_multiplexed(p, len, urb);
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if (rc <= 0)
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return rc;
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} else {
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copy_streams(p, len, urb);
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}
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}
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}
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}
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return rc;
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}
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/* ------------------------------------------------------------------
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* URB control
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* ------------------------------------------------------------------
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*/
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/*
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* IRQ callback, called by URB callback
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*/
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static void tm6000_irq_callback(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 long flags;
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int i;
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switch (urb->status) {
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case 0:
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case -ETIMEDOUT:
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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return;
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default:
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tm6000_err("urb completion error %d.\n", urb->status);
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break;
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}
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spin_lock_irqsave(&dev->slock, flags);
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tm6000_isoc_copy(urb);
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spin_unlock_irqrestore(&dev->slock, flags);
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/* Reset urb buffers */
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for (i = 0; i < urb->number_of_packets; i++) {
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urb->iso_frame_desc[i].status = 0;
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urb->iso_frame_desc[i].actual_length = 0;
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}
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urb->status = usb_submit_urb(urb, GFP_ATOMIC);
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if (urb->status)
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tm6000_err("urb resubmit failed (error=%i)\n",
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urb->status);
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}
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/*
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* Allocate URB buffers
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*/
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static int tm6000_alloc_urb_buffers(struct tm6000_core *dev)
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{
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int num_bufs = TM6000_NUM_URB_BUF;
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int i;
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if (dev->urb_buffer)
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return 0;
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dev->urb_buffer = kmalloc_array(num_bufs, sizeof(*dev->urb_buffer),
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GFP_KERNEL);
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if (!dev->urb_buffer)
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return -ENOMEM;
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dev->urb_dma = kmalloc_array(num_bufs, sizeof(*dev->urb_dma),
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GFP_KERNEL);
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if (!dev->urb_dma)
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return -ENOMEM;
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for (i = 0; i < num_bufs; i++) {
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dev->urb_buffer[i] = usb_alloc_coherent(
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dev->udev, dev->urb_size,
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GFP_KERNEL, &dev->urb_dma[i]);
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if (!dev->urb_buffer[i]) {
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tm6000_err("unable to allocate %i bytes for transfer buffer %i\n",
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dev->urb_size, i);
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return -ENOMEM;
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}
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memset(dev->urb_buffer[i], 0, dev->urb_size);
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}
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return 0;
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}
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/*
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* Free URB buffers
|
*/
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static int tm6000_free_urb_buffers(struct tm6000_core *dev)
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{
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int i;
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if (!dev->urb_buffer)
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return 0;
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for (i = 0; i < TM6000_NUM_URB_BUF; i++) {
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if (dev->urb_buffer[i]) {
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usb_free_coherent(dev->udev,
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dev->urb_size,
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dev->urb_buffer[i],
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dev->urb_dma[i]);
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dev->urb_buffer[i] = NULL;
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}
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}
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kfree(dev->urb_buffer);
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kfree(dev->urb_dma);
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dev->urb_buffer = NULL;
|
dev->urb_dma = NULL;
|
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return 0;
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}
|
|
/*
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* Stop and Deallocate URBs
|
*/
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static void tm6000_uninit_isoc(struct tm6000_core *dev)
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{
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struct urb *urb;
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int i;
|
|
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);
|
usb_free_urb(urb);
|
dev->isoc_ctl.urb[i] = NULL;
|
}
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dev->isoc_ctl.transfer_buffer[i] = NULL;
|
}
|
|
if (!keep_urb)
|
tm6000_free_urb_buffers(dev);
|
|
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;
|
}
|
|
/*
|
* Assign URBs and start IRQ
|
*/
|
static int tm6000_prepare_isoc(struct tm6000_core *dev)
|
{
|
struct tm6000_dmaqueue *dma_q = &dev->vidq;
|
int i, j, sb_size, pipe, size, max_packets;
|
int num_bufs = TM6000_NUM_URB_BUF;
|
struct urb *urb;
|
|
/* De-allocates all pending stuff */
|
tm6000_uninit_isoc(dev);
|
/* Stop interrupt USB pipe */
|
tm6000_ir_int_stop(dev);
|
|
usb_set_interface(dev->udev,
|
dev->isoc_in.bInterfaceNumber,
|
dev->isoc_in.bAlternateSetting);
|
|
/* Start interrupt USB pipe */
|
tm6000_ir_int_start(dev);
|
|
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 = TM6000_MAX_ISO_PACKETS;
|
sb_size = max_packets * size;
|
dev->urb_size = sb_size;
|
|
dev->isoc_ctl.num_bufs = num_bufs;
|
|
dev->isoc_ctl.urb = kmalloc_array(num_bufs, sizeof(void *),
|
GFP_KERNEL);
|
if (!dev->isoc_ctl.urb)
|
return -ENOMEM;
|
|
dev->isoc_ctl.transfer_buffer = kmalloc_array(num_bufs,
|
sizeof(void *),
|
GFP_KERNEL);
|
if (!dev->isoc_ctl.transfer_buffer) {
|
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);
|
|
|
if (tm6000_alloc_urb_buffers(dev) < 0) {
|
tm6000_err("cannot allocate memory for urb buffers\n");
|
|
/* call free, as some buffers might have been allocated */
|
tm6000_free_urb_buffers(dev);
|
kfree(dev->isoc_ctl.urb);
|
kfree(dev->isoc_ctl.transfer_buffer);
|
return -ENOMEM;
|
}
|
|
/* 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_uninit_isoc(dev);
|
tm6000_free_urb_buffers(dev);
|
return -ENOMEM;
|
}
|
dev->isoc_ctl.urb[i] = urb;
|
|
urb->transfer_dma = dev->urb_dma[i];
|
dev->isoc_ctl.transfer_buffer[i] = dev->urb_buffer[i];
|
|
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;
|
|
BUG_ON(in_interrupt());
|
|
/* 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;
|
|
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) {
|
rc = videobuf_iolock(vq, &buf->vb, NULL);
|
if (rc != 0)
|
goto fail;
|
}
|
|
if (!dev->isoc_ctl.num_bufs) {
|
rc = tm6000_prepare_isoc(dev);
|
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 const 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 bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
|
{
|
/* Is the current fh handling it? if so, that's OK */
|
if (dev->resources == fh && dev->is_res_read)
|
return true;
|
|
return false;
|
}
|
|
static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
|
{
|
/* Is the current fh handling it? if so, that's OK */
|
if (dev->resources == fh)
|
return true;
|
|
return false;
|
}
|
|
static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
|
bool is_res_read)
|
{
|
/* Is the current fh handling it? if so, that's OK */
|
if (dev->resources == fh && dev->is_res_read == is_res_read)
|
return true;
|
|
/* is it free? */
|
if (dev->resources)
|
return false;
|
|
/* grab it */
|
dev->resources = fh;
|
dev->is_res_read = is_res_read;
|
dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
|
return true;
|
}
|
|
static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
|
{
|
/* Is the current fh handling it? if so, that's OK */
|
if (dev->resources != fh)
|
return;
|
|
dev->resources = NULL;
|
dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
|
}
|
|
/* ------------------------------------------------------------------
|
* 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;
|
|
strscpy(cap->driver, "tm6000", sizeof(cap->driver));
|
strscpy(cap->card, "Trident TM5600/6000/6010", sizeof(cap->card));
|
usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
|
V4L2_CAP_DEVICE_CAPS;
|
if (dev->tuner_type != TUNER_ABSENT)
|
cap->capabilities |= V4L2_CAP_TUNER;
|
if (dev->caps.has_radio)
|
cap->capabilities |= V4L2_CAP_RADIO;
|
|
return 0;
|
}
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
struct v4l2_fmtdesc *f)
|
{
|
if (f->index >= ARRAY_SIZE(format))
|
return -EINVAL;
|
|
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.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
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, 2, "Fourcc format (0x%08x) invalid.\n",
|
f->fmt.pix.pixelformat);
|
return -EINVAL;
|
}
|
|
field = f->fmt.pix.field;
|
|
field = V4L2_FIELD_INTERLACED;
|
|
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;
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
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);
|
}
|
|
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, false))
|
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;
|
|
dev->norm = norm;
|
rc = tm6000_init_analog_mode(dev);
|
|
fh->width = dev->width;
|
fh->height = dev->height;
|
|
if (rc < 0)
|
return rc;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->norm);
|
|
return 0;
|
}
|
|
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
|
{
|
struct tm6000_fh *fh = priv;
|
struct tm6000_core *dev = fh->dev;
|
|
*norm = dev->norm;
|
return 0;
|
}
|
|
static const char *iname[] = {
|
[TM6000_INPUT_TV] = "Television",
|
[TM6000_INPUT_COMPOSITE1] = "Composite 1",
|
[TM6000_INPUT_COMPOSITE2] = "Composite 2",
|
[TM6000_INPUT_SVIDEO] = "S-Video",
|
};
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
struct v4l2_input *i)
|
{
|
struct tm6000_fh *fh = priv;
|
struct tm6000_core *dev = fh->dev;
|
unsigned int n;
|
|
n = i->index;
|
if (n >= 3)
|
return -EINVAL;
|
|
if (!dev->vinput[n].type)
|
return -EINVAL;
|
|
i->index = n;
|
|
if (dev->vinput[n].type == TM6000_INPUT_TV)
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
else
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strscpy(i->name, iname[dev->vinput[n].type], sizeof(i->name));
|
|
i->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;
|
|
if (i >= 3)
|
return -EINVAL;
|
if (!dev->vinput[i].type)
|
return -EINVAL;
|
|
dev->input = i;
|
|
rc = vidioc_s_std(file, priv, dev->norm);
|
|
return rc;
|
}
|
|
/* --- controls ---------------------------------------------- */
|
|
static int tm6000_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct tm6000_core *dev = container_of(ctrl->handler, struct tm6000_core, ctrl_handler);
|
u8 val = ctrl->val;
|
|
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 const struct v4l2_ctrl_ops tm6000_ctrl_ops = {
|
.s_ctrl = tm6000_s_ctrl,
|
};
|
|
static int tm6000_radio_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct tm6000_core *dev = container_of(ctrl->handler,
|
struct tm6000_core, radio_ctrl_handler);
|
u8 val = ctrl->val;
|
|
switch (ctrl->id) {
|
case V4L2_CID_AUDIO_MUTE:
|
dev->ctl_mute = val;
|
tm6000_tvaudio_set_mute(dev, val);
|
return 0;
|
case V4L2_CID_AUDIO_VOLUME:
|
dev->ctl_volume = val;
|
tm6000_set_volume(dev, val);
|
return 0;
|
}
|
return -EINVAL;
|
}
|
|
static const struct v4l2_ctrl_ops tm6000_radio_ctrl_ops = {
|
.s_ctrl = tm6000_radio_s_ctrl,
|
};
|
|
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 (UNSET == dev->tuner_type)
|
return -ENOTTY;
|
if (0 != t->index)
|
return -EINVAL;
|
|
strscpy(t->name, "Television", sizeof(t->name));
|
t->type = V4L2_TUNER_ANALOG_TV;
|
t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
|
t->rangehigh = 0xffffffffUL;
|
t->rxsubchans = V4L2_TUNER_SUB_STEREO;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
|
|
t->audmode = dev->amode;
|
|
return 0;
|
}
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
const struct v4l2_tuner *t)
|
{
|
struct tm6000_fh *fh = priv;
|
struct tm6000_core *dev = fh->dev;
|
|
if (UNSET == dev->tuner_type)
|
return -ENOTTY;
|
if (0 != t->index)
|
return -EINVAL;
|
|
if (t->audmode > V4L2_TUNER_MODE_STEREO)
|
dev->amode = V4L2_TUNER_MODE_STEREO;
|
else
|
dev->amode = t->audmode;
|
dprintk(dev, 3, "audio mode: %x\n", t->audmode);
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
|
|
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 (UNSET == dev->tuner_type)
|
return -ENOTTY;
|
if (f->tuner)
|
return -EINVAL;
|
|
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,
|
const struct v4l2_frequency *f)
|
{
|
struct tm6000_fh *fh = priv;
|
struct tm6000_core *dev = fh->dev;
|
|
if (UNSET == dev->tuner_type)
|
return -ENOTTY;
|
if (f->tuner != 0)
|
return -EINVAL;
|
|
dev->freq = f->frequency;
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
|
|
return 0;
|
}
|
|
static int radio_g_tuner(struct file *file, void *priv,
|
struct v4l2_tuner *t)
|
{
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_core *dev = fh->dev;
|
|
if (0 != t->index)
|
return -EINVAL;
|
|
memset(t, 0, sizeof(*t));
|
strscpy(t->name, "Radio", sizeof(t->name));
|
t->type = V4L2_TUNER_RADIO;
|
t->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
|
t->rxsubchans = V4L2_TUNER_SUB_STEREO;
|
t->audmode = V4L2_TUNER_MODE_STEREO;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
|
|
return 0;
|
}
|
|
static int radio_s_tuner(struct file *file, void *priv,
|
const struct v4l2_tuner *t)
|
{
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_core *dev = fh->dev;
|
|
if (0 != t->index)
|
return -EINVAL;
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
|
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 rc;
|
int radio = 0;
|
|
dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
|
video_device_node_name(vdev));
|
|
switch (vdev->vfl_type) {
|
case VFL_TYPE_VIDEO:
|
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
break;
|
case VFL_TYPE_VBI:
|
type = V4L2_BUF_TYPE_VBI_CAPTURE;
|
break;
|
case VFL_TYPE_RADIO:
|
radio = 1;
|
break;
|
default:
|
return -EINVAL;
|
}
|
|
/* 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;
|
}
|
|
v4l2_fh_init(&fh->fh, vdev);
|
file->private_data = fh;
|
fh->dev = dev;
|
fh->radio = radio;
|
dev->radio = radio;
|
fh->type = type;
|
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=%p, dev=%p, dev->vidq=%p\n",
|
fh, dev, &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 */
|
rc = tm6000_init_analog_mode(dev);
|
if (rc < 0) {
|
v4l2_fh_exit(&fh->fh);
|
kfree(fh);
|
return rc;
|
}
|
|
dev->mode = TM6000_MODE_ANALOG;
|
|
if (!fh->radio) {
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
|
NULL, &dev->slock,
|
fh->type,
|
V4L2_FIELD_INTERLACED,
|
sizeof(struct tm6000_buffer), fh, &dev->lock);
|
} else {
|
dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
|
tm6000_set_audio_rinput(dev);
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
|
tm6000_prepare_isoc(dev);
|
tm6000_start_thread(dev);
|
}
|
v4l2_fh_add(&fh->fh);
|
|
return 0;
|
}
|
|
static int tm6000_open(struct file *file)
|
{
|
struct video_device *vdev = video_devdata(file);
|
int res;
|
|
mutex_lock(vdev->lock);
|
res = __tm6000_open(file);
|
mutex_unlock(vdev->lock);
|
return res;
|
}
|
|
static ssize_t
|
tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
|
{
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_core *dev = fh->dev;
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
int res;
|
|
if (!res_get(fh->dev, fh, true))
|
return -EBUSY;
|
|
if (mutex_lock_interruptible(&dev->lock))
|
return -ERESTARTSYS;
|
res = videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
|
file->f_flags & O_NONBLOCK);
|
mutex_unlock(&dev->lock);
|
return res;
|
}
|
return 0;
|
}
|
|
static __poll_t
|
__tm6000_poll(struct file *file, struct poll_table_struct *wait)
|
{
|
__poll_t req_events = poll_requested_events(wait);
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_buffer *buf;
|
__poll_t res = 0;
|
|
if (v4l2_event_pending(&fh->fh))
|
res = EPOLLPRI;
|
else if (req_events & EPOLLPRI)
|
poll_wait(file, &fh->fh.wait, wait);
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
|
return res | EPOLLERR;
|
|
if (!!is_res_streaming(fh->dev, fh))
|
return res | EPOLLERR;
|
|
if (!is_res_read(fh->dev, fh)) {
|
/* streaming capture */
|
if (list_empty(&fh->vb_vidq.stream))
|
return res | EPOLLERR;
|
buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
|
poll_wait(file, &buf->vb.done, wait);
|
if (buf->vb.state == VIDEOBUF_DONE ||
|
buf->vb.state == VIDEOBUF_ERROR)
|
return res | EPOLLIN | EPOLLRDNORM;
|
} else if (req_events & (EPOLLIN | EPOLLRDNORM)) {
|
/* read() capture */
|
return res | videobuf_poll_stream(file, &fh->vb_vidq, wait);
|
}
|
return res;
|
}
|
|
static __poll_t tm6000_poll(struct file *file, struct poll_table_struct *wait)
|
{
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_core *dev = fh->dev;
|
__poll_t res;
|
|
mutex_lock(&dev->lock);
|
res = __tm6000_poll(file, wait);
|
mutex_unlock(&dev->lock);
|
return res;
|
}
|
|
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);
|
|
mutex_lock(&dev->lock);
|
dev->users--;
|
|
res_free(dev, fh);
|
|
if (!dev->users) {
|
tm6000_uninit_isoc(dev);
|
|
/* Stop interrupt USB pipe */
|
tm6000_ir_int_stop(dev);
|
|
usb_reset_configuration(dev->udev);
|
|
if (dev->int_in.endp)
|
usb_set_interface(dev->udev,
|
dev->isoc_in.bInterfaceNumber, 2);
|
else
|
usb_set_interface(dev->udev,
|
dev->isoc_in.bInterfaceNumber, 0);
|
|
/* Start interrupt USB pipe */
|
tm6000_ir_int_start(dev);
|
|
if (!fh->radio)
|
videobuf_mmap_free(&fh->vb_vidq);
|
}
|
v4l2_fh_del(&fh->fh);
|
v4l2_fh_exit(&fh->fh);
|
kfree(fh);
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
}
|
|
static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
|
{
|
struct tm6000_fh *fh = file->private_data;
|
struct tm6000_core *dev = fh->dev;
|
int res;
|
|
if (mutex_lock_interruptible(&dev->lock))
|
return -ERESTARTSYS;
|
res = videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
mutex_unlock(&dev->lock);
|
return res;
|
}
|
|
static const struct v4l2_file_operations tm6000_fops = {
|
.owner = THIS_MODULE,
|
.open = tm6000_open,
|
.release = tm6000_release,
|
.unlocked_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_g_std = vidioc_g_std,
|
.vidioc_enum_input = vidioc_enum_input,
|
.vidioc_g_input = vidioc_g_input,
|
.vidioc_s_input = vidioc_s_input,
|
.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,
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
};
|
|
static struct video_device tm6000_template = {
|
.name = "tm6000",
|
.fops = &tm6000_fops,
|
.ioctl_ops = &video_ioctl_ops,
|
.release = video_device_release_empty,
|
.tvnorms = TM6000_STD,
|
};
|
|
static const struct v4l2_file_operations radio_fops = {
|
.owner = THIS_MODULE,
|
.open = tm6000_open,
|
.poll = v4l2_ctrl_poll,
|
.release = tm6000_release,
|
.unlocked_ioctl = video_ioctl2,
|
};
|
|
static const struct v4l2_ioctl_ops radio_ioctl_ops = {
|
.vidioc_querycap = vidioc_querycap,
|
.vidioc_g_tuner = radio_g_tuner,
|
.vidioc_s_tuner = radio_s_tuner,
|
.vidioc_g_frequency = vidioc_g_frequency,
|
.vidioc_s_frequency = vidioc_s_frequency,
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
};
|
|
static struct video_device tm6000_radio_template = {
|
.name = "tm6000",
|
.fops = &radio_fops,
|
.ioctl_ops = &radio_ioctl_ops,
|
};
|
|
/* -----------------------------------------------------------------
|
* Initialization and module stuff
|
* ------------------------------------------------------------------
|
*/
|
|
static void vdev_init(struct tm6000_core *dev,
|
struct video_device *vfd,
|
const struct video_device
|
*template, const char *type_name)
|
{
|
*vfd = *template;
|
vfd->v4l2_dev = &dev->v4l2_dev;
|
vfd->release = video_device_release_empty;
|
vfd->lock = &dev->lock;
|
|
snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
|
|
video_set_drvdata(vfd, dev);
|
}
|
|
int tm6000_v4l2_register(struct tm6000_core *dev)
|
{
|
int ret = 0;
|
|
v4l2_ctrl_handler_init(&dev->ctrl_handler, 6);
|
v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 2);
|
v4l2_ctrl_new_std(&dev->radio_ctrl_handler, &tm6000_radio_ctrl_ops,
|
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
|
v4l2_ctrl_new_std(&dev->radio_ctrl_handler, &tm6000_radio_ctrl_ops,
|
V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
|
v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
|
V4L2_CID_BRIGHTNESS, 0, 255, 1, 54);
|
v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
|
V4L2_CID_CONTRAST, 0, 255, 1, 119);
|
v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
|
V4L2_CID_SATURATION, 0, 255, 1, 112);
|
v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
|
V4L2_CID_HUE, -128, 127, 1, 0);
|
v4l2_ctrl_add_handler(&dev->ctrl_handler,
|
&dev->radio_ctrl_handler, NULL, false);
|
|
if (dev->radio_ctrl_handler.error)
|
ret = dev->radio_ctrl_handler.error;
|
if (!ret && dev->ctrl_handler.error)
|
ret = dev->ctrl_handler.error;
|
if (ret)
|
goto free_ctrl;
|
|
vdev_init(dev, &dev->vfd, &tm6000_template, "video");
|
|
dev->vfd.ctrl_handler = &dev->ctrl_handler;
|
dev->vfd.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
|
V4L2_CAP_READWRITE;
|
if (dev->tuner_type != TUNER_ABSENT)
|
dev->vfd.device_caps |= V4L2_CAP_TUNER;
|
|
/* init video dma queues */
|
INIT_LIST_HEAD(&dev->vidq.active);
|
INIT_LIST_HEAD(&dev->vidq.queued);
|
|
ret = video_register_device(&dev->vfd, VFL_TYPE_VIDEO, video_nr);
|
|
if (ret < 0) {
|
printk(KERN_INFO "%s: can't register video device\n",
|
dev->name);
|
goto free_ctrl;
|
}
|
|
printk(KERN_INFO "%s: registered device %s\n",
|
dev->name, video_device_node_name(&dev->vfd));
|
|
if (dev->caps.has_radio) {
|
vdev_init(dev, &dev->radio_dev, &tm6000_radio_template,
|
"radio");
|
dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
|
dev->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
|
ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
|
radio_nr);
|
if (ret < 0) {
|
printk(KERN_INFO "%s: can't register radio device\n",
|
dev->name);
|
goto unreg_video;
|
}
|
|
printk(KERN_INFO "%s: registered device %s\n",
|
dev->name, video_device_node_name(&dev->radio_dev));
|
}
|
|
printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
|
return ret;
|
|
unreg_video:
|
video_unregister_device(&dev->vfd);
|
free_ctrl:
|
v4l2_ctrl_handler_free(&dev->ctrl_handler);
|
v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
|
return ret;
|
}
|
|
int tm6000_v4l2_unregister(struct tm6000_core *dev)
|
{
|
video_unregister_device(&dev->vfd);
|
|
/* if URB buffers are still allocated free them now */
|
tm6000_free_urb_buffers(dev);
|
|
video_unregister_device(&dev->radio_dev);
|
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");
|
|
module_param(keep_urb, bool, 0);
|
MODULE_PARM_DESC(keep_urb, "Keep urb buffers allocated even when the device is closed by the user");
|
