![Kees Cook](/assets/img/avatar_default.png)
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
1710 lines
41 KiB
C
1710 lines
41 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
|
|
//
|
|
// Copyright (c) 2006-2007 Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
//
|
|
// Copyright (c) 2007 Michel Ludwig <michel.ludwig@gmail.com>
|
|
// - Fixed module load/unload
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/init.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/random.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/videodev2.h>
|
|
#include <media/v4l2-ioctl.h>
|
|
#include <media/v4l2-event.h>
|
|
#include <media/tuner.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/kthread.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/freezer.h>
|
|
|
|
#include "tm6000-regs.h"
|
|
#include "tm6000.h"
|
|
|
|
#define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
|
|
|
|
/* Limits minimum and default number of buffers */
|
|
#define TM6000_MIN_BUF 4
|
|
#define TM6000_DEF_BUF 8
|
|
|
|
#define TM6000_NUM_URB_BUF 8
|
|
|
|
#define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
|
|
|
|
/* Declare static vars that will be used as parameters */
|
|
static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
|
|
static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
|
|
static int radio_nr = -1; /* /dev/radioN, -1 for autodetect */
|
|
static bool keep_urb; /* keep urb buffers allocated */
|
|
|
|
/* Debug level */
|
|
int tm6000_debug;
|
|
EXPORT_SYMBOL_GPL(tm6000_debug);
|
|
|
|
static struct tm6000_fmt format[] = {
|
|
{
|
|
.name = "4:2:2, packed, YVY2",
|
|
.fourcc = V4L2_PIX_FMT_YUYV,
|
|
.depth = 16,
|
|
}, {
|
|
.name = "4:2:2, packed, UYVY",
|
|
.fourcc = V4L2_PIX_FMT_UYVY,
|
|
.depth = 16,
|
|
}, {
|
|
.name = "A/V + VBI mux packet",
|
|
.fourcc = V4L2_PIX_FMT_TM6000,
|
|
.depth = 16,
|
|
}
|
|
};
|
|
|
|
/* ------------------------------------------------------------------
|
|
* DMA and thread functions
|
|
* ------------------------------------------------------------------
|
|
*/
|
|
|
|
#define norm_maxw(a) 720
|
|
#define norm_maxh(a) 576
|
|
|
|
#define norm_minw(a) norm_maxw(a)
|
|
#define norm_minh(a) norm_maxh(a)
|
|
|
|
/*
|
|
* video-buf generic routine to get the next available buffer
|
|
*/
|
|
static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
|
|
struct tm6000_buffer **buf)
|
|
{
|
|
struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
|
|
|
|
if (list_empty(&dma_q->active)) {
|
|
dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
|
|
*buf = NULL;
|
|
return;
|
|
}
|
|
|
|
*buf = list_entry(dma_q->active.next,
|
|
struct tm6000_buffer, vb.queue);
|
|
}
|
|
|
|
/*
|
|
* Announces that a buffer were filled and request the next
|
|
*/
|
|
static inline void buffer_filled(struct tm6000_core *dev,
|
|
struct tm6000_dmaqueue *dma_q,
|
|
struct tm6000_buffer *buf)
|
|
{
|
|
/* Advice that buffer was filled */
|
|
dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
|
|
buf->vb.state = VIDEOBUF_DONE;
|
|
buf->vb.field_count++;
|
|
v4l2_get_timestamp(&buf->vb.ts);
|
|
|
|
list_del(&buf->vb.queue);
|
|
wake_up(&buf->vb.done);
|
|
}
|
|
|
|
/*
|
|
* Identify the tm5600/6000 buffer header type and properly handles
|
|
*/
|
|
static int copy_streams(u8 *data, unsigned long len,
|
|
struct urb *urb)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = urb->context;
|
|
struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
|
|
u8 *ptr = data, *endp = data+len;
|
|
unsigned long header = 0;
|
|
int rc = 0;
|
|
unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
|
|
struct tm6000_buffer *vbuf = NULL;
|
|
char *voutp = NULL;
|
|
unsigned int linewidth;
|
|
|
|
if (!dev->radio) {
|
|
/* get video buffer */
|
|
get_next_buf(dma_q, &vbuf);
|
|
|
|
if (!vbuf)
|
|
return rc;
|
|
voutp = videobuf_to_vmalloc(&vbuf->vb);
|
|
|
|
if (!voutp)
|
|
return 0;
|
|
}
|
|
|
|
for (ptr = data; ptr < endp;) {
|
|
if (!dev->isoc_ctl.cmd) {
|
|
/* Header */
|
|
if (dev->isoc_ctl.tmp_buf_len > 0) {
|
|
/* from last urb or packet */
|
|
header = dev->isoc_ctl.tmp_buf;
|
|
if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
|
|
memcpy((u8 *)&header +
|
|
dev->isoc_ctl.tmp_buf_len,
|
|
ptr,
|
|
4 - dev->isoc_ctl.tmp_buf_len);
|
|
ptr += 4 - dev->isoc_ctl.tmp_buf_len;
|
|
}
|
|
dev->isoc_ctl.tmp_buf_len = 0;
|
|
} else {
|
|
if (ptr + 3 >= endp) {
|
|
/* have incomplete header */
|
|
dev->isoc_ctl.tmp_buf_len = endp - ptr;
|
|
memcpy(&dev->isoc_ctl.tmp_buf, ptr,
|
|
dev->isoc_ctl.tmp_buf_len);
|
|
return rc;
|
|
}
|
|
/* Seek for sync */
|
|
for (; ptr < endp - 3; ptr++) {
|
|
if (*(ptr + 3) == 0x47)
|
|
break;
|
|
}
|
|
/* Get message header */
|
|
header = *(unsigned long *)ptr;
|
|
ptr += 4;
|
|
}
|
|
|
|
/* split the header fields */
|
|
size = ((header & 0x7e) << 1);
|
|
if (size > 0)
|
|
size -= 4;
|
|
block = (header >> 7) & 0xf;
|
|
field = (header >> 11) & 0x1;
|
|
line = (header >> 12) & 0x1ff;
|
|
cmd = (header >> 21) & 0x7;
|
|
/* Validates haeder fields */
|
|
if (size > TM6000_URB_MSG_LEN)
|
|
size = TM6000_URB_MSG_LEN;
|
|
pktsize = TM6000_URB_MSG_LEN;
|
|
/*
|
|
* calculate position in buffer and change the buffer
|
|
*/
|
|
switch (cmd) {
|
|
case TM6000_URB_MSG_VIDEO:
|
|
if (!dev->radio) {
|
|
if ((dev->isoc_ctl.vfield != field) &&
|
|
(field == 1)) {
|
|
/*
|
|
* Announces that a new buffer
|
|
* were filled
|
|
*/
|
|
buffer_filled(dev, dma_q, vbuf);
|
|
dprintk(dev, V4L2_DEBUG_ISOC,
|
|
"new buffer filled\n");
|
|
get_next_buf(dma_q, &vbuf);
|
|
if (!vbuf)
|
|
return rc;
|
|
voutp = videobuf_to_vmalloc(&vbuf->vb);
|
|
if (!voutp)
|
|
return rc;
|
|
memset(voutp, 0, vbuf->vb.size);
|
|
}
|
|
linewidth = vbuf->vb.width << 1;
|
|
pos = ((line << 1) - field - 1) *
|
|
linewidth + block * TM6000_URB_MSG_LEN;
|
|
/* Don't allow to write out of the buffer */
|
|
if (pos + size > vbuf->vb.size)
|
|
cmd = TM6000_URB_MSG_ERR;
|
|
dev->isoc_ctl.vfield = field;
|
|
}
|
|
break;
|
|
case TM6000_URB_MSG_VBI:
|
|
break;
|
|
case TM6000_URB_MSG_AUDIO:
|
|
case TM6000_URB_MSG_PTS:
|
|
size = pktsize; /* Size is always 180 bytes */
|
|
break;
|
|
}
|
|
} else {
|
|
/* Continue the last copy */
|
|
cmd = dev->isoc_ctl.cmd;
|
|
size = dev->isoc_ctl.size;
|
|
pos = dev->isoc_ctl.pos;
|
|
pktsize = dev->isoc_ctl.pktsize;
|
|
field = dev->isoc_ctl.field;
|
|
}
|
|
cpysize = (endp - ptr > size) ? size : endp - ptr;
|
|
if (cpysize) {
|
|
/* copy data in different buffers */
|
|
switch (cmd) {
|
|
case TM6000_URB_MSG_VIDEO:
|
|
/* Fills video buffer */
|
|
if (vbuf)
|
|
memcpy(&voutp[pos], ptr, cpysize);
|
|
break;
|
|
case TM6000_URB_MSG_AUDIO: {
|
|
int i;
|
|
for (i = 0; i < cpysize; i += 2)
|
|
swab16s((u16 *)(ptr + i));
|
|
|
|
tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
|
|
break;
|
|
}
|
|
case TM6000_URB_MSG_VBI:
|
|
/* Need some code to copy vbi buffer */
|
|
break;
|
|
case TM6000_URB_MSG_PTS: {
|
|
/* Need some code to copy pts */
|
|
u32 pts;
|
|
pts = *(u32 *)ptr;
|
|
dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
|
|
field, pts);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (ptr + pktsize > endp) {
|
|
/*
|
|
* End of URB packet, but cmd processing is not
|
|
* complete. Preserve the state for a next packet
|
|
*/
|
|
dev->isoc_ctl.pos = pos + cpysize;
|
|
dev->isoc_ctl.size = size - cpysize;
|
|
dev->isoc_ctl.cmd = cmd;
|
|
dev->isoc_ctl.field = field;
|
|
dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
|
|
ptr += endp - ptr;
|
|
} else {
|
|
dev->isoc_ctl.cmd = 0;
|
|
ptr += pktsize;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Identify the tm5600/6000 buffer header type and properly handles
|
|
*/
|
|
static int copy_multiplexed(u8 *ptr, unsigned long len,
|
|
struct urb *urb)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = urb->context;
|
|
struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
|
|
unsigned int pos = dev->isoc_ctl.pos, cpysize;
|
|
int rc = 1;
|
|
struct tm6000_buffer *buf;
|
|
char *outp = NULL;
|
|
|
|
get_next_buf(dma_q, &buf);
|
|
if (buf)
|
|
outp = videobuf_to_vmalloc(&buf->vb);
|
|
|
|
if (!outp)
|
|
return 0;
|
|
|
|
while (len > 0) {
|
|
cpysize = min(len, buf->vb.size-pos);
|
|
memcpy(&outp[pos], ptr, cpysize);
|
|
pos += cpysize;
|
|
ptr += cpysize;
|
|
len -= cpysize;
|
|
if (pos >= buf->vb.size) {
|
|
pos = 0;
|
|
/* Announces that a new buffer were filled */
|
|
buffer_filled(dev, dma_q, buf);
|
|
dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
|
|
get_next_buf(dma_q, &buf);
|
|
if (!buf)
|
|
break;
|
|
outp = videobuf_to_vmalloc(&(buf->vb));
|
|
if (!outp)
|
|
return rc;
|
|
pos = 0;
|
|
}
|
|
}
|
|
|
|
dev->isoc_ctl.pos = pos;
|
|
return rc;
|
|
}
|
|
|
|
static inline void print_err_status(struct tm6000_core *dev,
|
|
int packet, int status)
|
|
{
|
|
char *errmsg = "Unknown";
|
|
|
|
switch (status) {
|
|
case -ENOENT:
|
|
errmsg = "unlinked synchronously";
|
|
break;
|
|
case -ECONNRESET:
|
|
errmsg = "unlinked asynchronously";
|
|
break;
|
|
case -ENOSR:
|
|
errmsg = "Buffer error (overrun)";
|
|
break;
|
|
case -EPIPE:
|
|
errmsg = "Stalled (device not responding)";
|
|
break;
|
|
case -EOVERFLOW:
|
|
errmsg = "Babble (bad cable?)";
|
|
break;
|
|
case -EPROTO:
|
|
errmsg = "Bit-stuff error (bad cable?)";
|
|
break;
|
|
case -EILSEQ:
|
|
errmsg = "CRC/Timeout (could be anything)";
|
|
break;
|
|
case -ETIME:
|
|
errmsg = "Device does not respond";
|
|
break;
|
|
}
|
|
if (packet < 0) {
|
|
dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
|
|
status, errmsg);
|
|
} else {
|
|
dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
|
|
packet, status, errmsg);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Controls the isoc copy of each urb packet
|
|
*/
|
|
static inline int tm6000_isoc_copy(struct urb *urb)
|
|
{
|
|
struct tm6000_dmaqueue *dma_q = urb->context;
|
|
struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
|
|
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;
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
case -ETIMEDOUT:
|
|
break;
|
|
|
|
case -ECONNRESET:
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
return;
|
|
|
|
default:
|
|
tm6000_err("urb completion error %d.\n", urb->status);
|
|
break;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
/*
|
|
* Allocate URB buffers
|
|
*/
|
|
static int tm6000_alloc_urb_buffers(struct tm6000_core *dev)
|
|
{
|
|
int num_bufs = TM6000_NUM_URB_BUF;
|
|
int i;
|
|
|
|
if (dev->urb_buffer)
|
|
return 0;
|
|
|
|
dev->urb_buffer = kmalloc_array(num_bufs, sizeof(void *), GFP_KERNEL);
|
|
if (!dev->urb_buffer)
|
|
return -ENOMEM;
|
|
|
|
dev->urb_dma = kmalloc_array(num_bufs, sizeof(dma_addr_t *),
|
|
GFP_KERNEL);
|
|
if (!dev->urb_dma)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_bufs; i++) {
|
|
dev->urb_buffer[i] = usb_alloc_coherent(
|
|
dev->udev, dev->urb_size,
|
|
GFP_KERNEL, &dev->urb_dma[i]);
|
|
if (!dev->urb_buffer[i]) {
|
|
tm6000_err("unable to allocate %i bytes for transfer buffer %i\n",
|
|
dev->urb_size, i);
|
|
return -ENOMEM;
|
|
}
|
|
memset(dev->urb_buffer[i], 0, dev->urb_size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Free URB buffers
|
|
*/
|
|
static int tm6000_free_urb_buffers(struct tm6000_core *dev)
|
|
{
|
|
int i;
|
|
|
|
if (!dev->urb_buffer)
|
|
return 0;
|
|
|
|
for (i = 0; i < TM6000_NUM_URB_BUF; i++) {
|
|
if (dev->urb_buffer[i]) {
|
|
usb_free_coherent(dev->udev,
|
|
dev->urb_size,
|
|
dev->urb_buffer[i],
|
|
dev->urb_dma[i]);
|
|
dev->urb_buffer[i] = NULL;
|
|
}
|
|
}
|
|
kfree(dev->urb_buffer);
|
|
kfree(dev->urb_dma);
|
|
dev->urb_buffer = NULL;
|
|
dev->urb_dma = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Stop and Deallocate URBs
|
|
*/
|
|
static void tm6000_uninit_isoc(struct tm6000_core *dev)
|
|
{
|
|
struct urb *urb;
|
|
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;
|
|
}
|
|
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;
|
|
struct video_device *vdev = video_devdata(file);
|
|
|
|
strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
|
|
strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
|
|
usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
|
|
if (dev->tuner_type != TUNER_ABSENT)
|
|
cap->device_caps |= V4L2_CAP_TUNER;
|
|
if (vdev->vfl_type == VFL_TYPE_GRABBER)
|
|
cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_STREAMING |
|
|
V4L2_CAP_READWRITE;
|
|
else
|
|
cap->device_caps |= V4L2_CAP_RADIO;
|
|
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
|
|
V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
|
|
|
|
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;
|
|
|
|
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.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;
|
|
|
|
strcpy(i->name, iname[dev->vinput[n].type]);
|
|
|
|
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;
|
|
|
|
strcpy(t->name, "Television");
|
|
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));
|
|
strcpy(t->name, "Radio");
|
|
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_GRABBER:
|
|
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);
|
|
|
|
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;
|
|
|
|
/* init video dma queues */
|
|
INIT_LIST_HEAD(&dev->vidq.active);
|
|
INIT_LIST_HEAD(&dev->vidq.queued);
|
|
|
|
ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, 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;
|
|
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");
|