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android_kernel_xiaomi_sm8350/drivers/media/video/cx23885/cx23885-video.c
Hans Verkuil aecde8b53b V4L/DVB (10141): v4l2: debugging API changed to match against driver name instead of ID. 
Since the i2c driver ID will be removed in the near future we have to
modify the v4l2 debugging API to use the driver name instead of driver ID.

Note that this API is not used in applications other than v4l2-dbg.cpp
as it is for debugging and testing only.

Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged
with a warning that it is deprecated and will be removed in 2.6.30.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-02 17:11:52 -02:00

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/*
* Driver for the Conexant CX23885 PCIe bridge
*
* Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <asm/div64.h>
#include "cx23885.h"
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#ifdef CONFIG_VIDEO_V4L1_COMPAT
/* Include V4L1 specific functions. Should be removed soon */
#include <linux/videodev.h>
#endif
MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
MODULE_LICENSE("GPL");
/* ------------------------------------------------------------------ */
static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
module_param_array(video_nr, int, NULL, 0444);
module_param_array(vbi_nr, int, NULL, 0444);
module_param_array(radio_nr, int, NULL, 0444);
MODULE_PARM_DESC(video_nr, "video device numbers");
MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
MODULE_PARM_DESC(radio_nr, "radio device numbers");
static unsigned int video_debug;
module_param(video_debug, int, 0644);
MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
static unsigned int irq_debug;
module_param(irq_debug, int, 0644);
MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
static unsigned int vid_limit = 16;
module_param(vid_limit, int, 0644);
MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
#define dprintk(level, fmt, arg...)\
do { if (video_debug >= level)\
printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
} while (0)
/* ------------------------------------------------------------------- */
/* static data */
#define FORMAT_FLAGS_PACKED 0x01
static struct cx23885_fmt formats[] = {
{
.name = "8 bpp, gray",
.fourcc = V4L2_PIX_FMT_GREY,
.depth = 8,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "15 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB555,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "15 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB555X,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "16 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB565,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "16 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB565X,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "24 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR24,
.depth = 24,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "32 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR32,
.depth = 32,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "32 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB32,
.depth = 32,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "4:2:2, packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
}, {
.name = "4:2:2, packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},
};
static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(formats); i++)
if (formats[i].fourcc == fourcc)
return formats+i;
printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
return NULL;
}
/* ------------------------------------------------------------------- */
static const struct v4l2_queryctrl no_ctl = {
.name = "42",
.flags = V4L2_CTRL_FLAG_DISABLED,
};
static struct cx23885_ctrl cx23885_ctls[] = {
/* --- video --- */
{
.v = {
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.minimum = 0x00,
.maximum = 0xff,
.step = 1,
.default_value = 0x7f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 128,
.reg = LUMA_CTRL,
.mask = 0x00ff,
.shift = 0,
}, {
.v = {
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.minimum = 0,
.maximum = 0xff,
.step = 1,
.default_value = 0x3f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 0,
.reg = LUMA_CTRL,
.mask = 0xff00,
.shift = 8,
}, {
.v = {
.id = V4L2_CID_HUE,
.name = "Hue",
.minimum = 0,
.maximum = 0xff,
.step = 1,
.default_value = 0x7f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 128,
.reg = CHROMA_CTRL,
.mask = 0xff0000,
.shift = 16,
}, {
/* strictly, this only describes only U saturation.
* V saturation is handled specially through code.
*/
.v = {
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.minimum = 0,
.maximum = 0xff,
.step = 1,
.default_value = 0x7f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 0,
.reg = CHROMA_CTRL,
.mask = 0x00ff,
.shift = 0,
}, {
/* --- audio --- */
.v = {
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
.reg = PATH1_CTL1,
.mask = (0x1f << 24),
.shift = 24,
}, {
.v = {
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = 0,
.maximum = 0x3f,
.step = 1,
.default_value = 0x3f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.reg = PATH1_VOL_CTL,
.mask = 0xff,
.shift = 0,
}
};
static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
static const u32 cx23885_user_ctrls[] = {
V4L2_CID_USER_CLASS,
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
V4L2_CID_AUDIO_VOLUME,
V4L2_CID_AUDIO_MUTE,
0
};
static const u32 *ctrl_classes[] = {
cx23885_user_ctrls,
NULL
};
static void cx23885_video_wakeup(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q, u32 count)
{
struct cx23885_buffer *buf;
int bc;
for (bc = 0;; bc++) {
if (list_empty(&q->active))
break;
buf = list_entry(q->active.next,
struct cx23885_buffer, vb.queue);
/* count comes from the hw and is is 16bit wide --
* this trick handles wrap-arounds correctly for
* up to 32767 buffers in flight... */
if ((s16) (count - buf->count) < 0)
break;
do_gettimeofday(&buf->vb.ts);
dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
count, buf->count);
buf->vb.state = VIDEOBUF_DONE;
list_del(&buf->vb.queue);
wake_up(&buf->vb.done);
}
if (list_empty(&q->active))
del_timer(&q->timeout);
else
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
if (bc != 1)
printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
__func__, bc);
}
static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
{
dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
__func__,
(unsigned int)norm,
v4l2_norm_to_name(norm));
dev->tvnorm = norm;
/* Tell the analog tuner/demods */
cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
/* Tell the internal A/V decoder */
cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
return 0;
}
static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
struct pci_dev *pci,
struct video_device *template,
char *type)
{
struct video_device *vfd;
dprintk(1, "%s()\n", __func__);
vfd = video_device_alloc();
if (NULL == vfd)
return NULL;
*vfd = *template;
vfd->minor = -1;
vfd->parent = &pci->dev;
vfd->release = video_device_release;
snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
dev->name, type, cx23885_boards[dev->board].name);
return vfd;
}
static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
{
int i;
if (qctrl->id < V4L2_CID_BASE ||
qctrl->id >= V4L2_CID_LASTP1)
return -EINVAL;
for (i = 0; i < CX23885_CTLS; i++)
if (cx23885_ctls[i].v.id == qctrl->id)
break;
if (i == CX23885_CTLS) {
*qctrl = no_ctl;
return 0;
}
*qctrl = cx23885_ctls[i].v;
return 0;
}
/* ------------------------------------------------------------------- */
/* resource management */
static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
unsigned int bit)
{
dprintk(1, "%s()\n", __func__);
if (fh->resources & bit)
/* have it already allocated */
return 1;
/* is it free? */
mutex_lock(&dev->lock);
if (dev->resources & bit) {
/* no, someone else uses it */
mutex_unlock(&dev->lock);
return 0;
}
/* it's free, grab it */
fh->resources |= bit;
dev->resources |= bit;
dprintk(1, "res: get %d\n", bit);
mutex_unlock(&dev->lock);
return 1;
}
static int res_check(struct cx23885_fh *fh, unsigned int bit)
{
return fh->resources & bit;
}
static int res_locked(struct cx23885_dev *dev, unsigned int bit)
{
return dev->resources & bit;
}
static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
unsigned int bits)
{
BUG_ON((fh->resources & bits) != bits);
dprintk(1, "%s()\n", __func__);
mutex_lock(&dev->lock);
fh->resources &= ~bits;
dev->resources &= ~bits;
dprintk(1, "res: put %d\n", bits);
mutex_unlock(&dev->lock);
}
static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
{
struct v4l2_routing route;
memset(&route, 0, sizeof(route));
dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
__func__,
input, INPUT(input)->vmux,
INPUT(input)->gpio0, INPUT(input)->gpio1,
INPUT(input)->gpio2, INPUT(input)->gpio3);
dev->input = input;
route.input = INPUT(input)->vmux;
/* Tell the internal A/V decoder */
cx23885_call_i2c_clients(&dev->i2c_bus[2],
VIDIOC_INT_S_VIDEO_ROUTING, &route);
return 0;
}
/* ------------------------------------------------------------------ */
static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
unsigned int height, enum v4l2_field field)
{
dprintk(1, "%s()\n", __func__);
return 0;
}
static int cx23885_start_video_dma(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q,
struct cx23885_buffer *buf)
{
dprintk(1, "%s()\n", __func__);
/* setup fifo + format */
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
buf->bpl, buf->risc.dma);
cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
/* reset counter */
cx_write(VID_A_GPCNT_CTL, 3);
q->count = 1;
/* enable irq */
cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
cx_set(VID_A_INT_MSK, 0x000011);
/* start dma */
cx_set(DEV_CNTRL2, (1<<5));
cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
return 0;
}
static int cx23885_restart_video_queue(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q)
{
struct cx23885_buffer *buf, *prev;
struct list_head *item;
dprintk(1, "%s()\n", __func__);
if (!list_empty(&q->active)) {
buf = list_entry(q->active.next, struct cx23885_buffer,
vb.queue);
dprintk(2, "restart_queue [%p/%d]: restart dma\n",
buf, buf->vb.i);
cx23885_start_video_dma(dev, q, buf);
list_for_each(item, &q->active) {
buf = list_entry(item, struct cx23885_buffer,
vb.queue);
buf->count = q->count++;
}
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
return 0;
}
prev = NULL;
for (;;) {
if (list_empty(&q->queued))
return 0;
buf = list_entry(q->queued.next, struct cx23885_buffer,
vb.queue);
if (NULL == prev) {
list_move_tail(&buf->vb.queue, &q->active);
cx23885_start_video_dma(dev, q, buf);
buf->vb.state = VIDEOBUF_ACTIVE;
buf->count = q->count++;
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
dprintk(2, "[%p/%d] restart_queue - first active\n",
buf, buf->vb.i);
} else if (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt) {
list_move_tail(&buf->vb.queue, &q->active);
buf->vb.state = VIDEOBUF_ACTIVE;
buf->count = q->count++;
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
dprintk(2, "[%p/%d] restart_queue - move to active\n",
buf, buf->vb.i);
} else {
return 0;
}
prev = buf;
}
}
static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
unsigned int *size)
{
struct cx23885_fh *fh = q->priv_data;
*size = fh->fmt->depth*fh->width*fh->height >> 3;
if (0 == *count)
*count = 32;
while (*size * *count > vid_limit * 1024 * 1024)
(*count)--;
return 0;
}
static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct cx23885_fh *fh = q->priv_data;
struct cx23885_dev *dev = fh->dev;
struct cx23885_buffer *buf =
container_of(vb, struct cx23885_buffer, vb);
int rc, init_buffer = 0;
u32 line0_offset, line1_offset;
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
BUG_ON(NULL == fh->fmt);
if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
return -EINVAL;
buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 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;
init_buffer = 1;
}
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
init_buffer = 1;
rc = videobuf_iolock(q, &buf->vb, NULL);
if (0 != rc)
goto fail;
}
if (init_buffer) {
buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
switch (buf->vb.field) {
case V4L2_FIELD_TOP:
cx23885_risc_buffer(dev->pci, &buf->risc,
dma->sglist, 0, UNSET,
buf->bpl, 0, buf->vb.height);
break;
case V4L2_FIELD_BOTTOM:
cx23885_risc_buffer(dev->pci, &buf->risc,
dma->sglist, UNSET, 0,
buf->bpl, 0, buf->vb.height);
break;
case V4L2_FIELD_INTERLACED:
if (dev->tvnorm & V4L2_STD_NTSC) {
/* cx25840 transmits NTSC bottom field first */
dprintk(1, "%s() Creating NTSC risc\n",
__func__);
line0_offset = buf->bpl;
line1_offset = 0;
} else {
/* All other formats are top field first */
dprintk(1, "%s() Creating PAL/SECAM risc\n",
__func__);
line0_offset = 0;
line1_offset = buf->bpl;
}
cx23885_risc_buffer(dev->pci, &buf->risc,
dma->sglist, line0_offset,
line1_offset,
buf->bpl, buf->bpl,
buf->vb.height >> 1);
break;
case V4L2_FIELD_SEQ_TB:
cx23885_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
0, buf->bpl * (buf->vb.height >> 1),
buf->bpl, 0,
buf->vb.height >> 1);
break;
case V4L2_FIELD_SEQ_BT:
cx23885_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
buf->bpl * (buf->vb.height >> 1), 0,
buf->bpl, 0,
buf->vb.height >> 1);
break;
default:
BUG();
}
}
dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
buf, buf->vb.i,
fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
(unsigned long)buf->risc.dma);
buf->vb.state = VIDEOBUF_PREPARED;
return 0;
fail:
cx23885_free_buffer(q, buf);
return rc;
}
static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
struct cx23885_buffer *buf = container_of(vb,
struct cx23885_buffer, vb);
struct cx23885_buffer *prev;
struct cx23885_fh *fh = vq->priv_data;
struct cx23885_dev *dev = fh->dev;
struct cx23885_dmaqueue *q = &dev->vidq;
/* add jump to stopper */
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
if (!list_empty(&q->queued)) {
list_add_tail(&buf->vb.queue, &q->queued);
buf->vb.state = VIDEOBUF_QUEUED;
dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
buf, buf->vb.i);
} else if (list_empty(&q->active)) {
list_add_tail(&buf->vb.queue, &q->active);
cx23885_start_video_dma(dev, q, buf);
buf->vb.state = VIDEOBUF_ACTIVE;
buf->count = q->count++;
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
dprintk(2, "[%p/%d] buffer_queue - first active\n",
buf, buf->vb.i);
} else {
prev = list_entry(q->active.prev, struct cx23885_buffer,
vb.queue);
if (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt) {
list_add_tail(&buf->vb.queue, &q->active);
buf->vb.state = VIDEOBUF_ACTIVE;
buf->count = q->count++;
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
/* 64 bit bits 63-32 */
prev->risc.jmp[2] = cpu_to_le32(0);
dprintk(2, "[%p/%d] buffer_queue - append to active\n",
buf, buf->vb.i);
} else {
list_add_tail(&buf->vb.queue, &q->queued);
buf->vb.state = VIDEOBUF_QUEUED;
dprintk(2, "[%p/%d] buffer_queue - first queued\n",
buf, buf->vb.i);
}
}
}
static void buffer_release(struct videobuf_queue *q,
struct videobuf_buffer *vb)
{
struct cx23885_buffer *buf = container_of(vb,
struct cx23885_buffer, vb);
cx23885_free_buffer(q, buf);
}
static struct videobuf_queue_ops cx23885_video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
{
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
return &fh->vidq;
case V4L2_BUF_TYPE_VBI_CAPTURE:
return &fh->vbiq;
default:
BUG();
return NULL;
}
}
static int get_resource(struct cx23885_fh *fh)
{
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
return RESOURCE_VIDEO;
case V4L2_BUF_TYPE_VBI_CAPTURE:
return RESOURCE_VBI;
default:
BUG();
return 0;
}
}
static int video_open(struct file *file)
{
int minor = video_devdata(file)->minor;
struct cx23885_dev *h, *dev = NULL;
struct cx23885_fh *fh;
struct list_head *list;
enum v4l2_buf_type type = 0;
int radio = 0;
lock_kernel();
list_for_each(list, &cx23885_devlist) {
h = list_entry(list, struct cx23885_dev, devlist);
if (h->video_dev->minor == minor) {
dev = h;
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
if (h->vbi_dev &&
h->vbi_dev->minor == minor) {
dev = h;
type = V4L2_BUF_TYPE_VBI_CAPTURE;
}
if (h->radio_dev &&
h->radio_dev->minor == minor) {
radio = 1;
dev = h;
}
}
if (NULL == dev) {
unlock_kernel();
return -ENODEV;
}
dprintk(1, "open minor=%d radio=%d type=%s\n",
minor, radio, v4l2_type_names[type]);
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
if (NULL == fh) {
unlock_kernel();
return -ENOMEM;
}
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
fh->type = type;
fh->width = 320;
fh->height = 240;
fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
&dev->pci->dev, &dev->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct cx23885_buffer),
fh);
dprintk(1, "post videobuf_queue_init()\n");
unlock_kernel();
return 0;
}
static ssize_t video_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct cx23885_fh *fh = file->private_data;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (res_locked(fh->dev, RESOURCE_VIDEO))
return -EBUSY;
return videobuf_read_one(&fh->vidq, data, count, ppos,
file->f_flags & O_NONBLOCK);
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (!res_get(fh->dev, fh, RESOURCE_VBI))
return -EBUSY;
return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
file->f_flags & O_NONBLOCK);
default:
BUG();
return 0;
}
}
static unsigned int video_poll(struct file *file,
struct poll_table_struct *wait)
{
struct cx23885_fh *fh = file->private_data;
struct cx23885_buffer *buf;
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
if (!res_get(fh->dev, fh, RESOURCE_VBI))
return POLLERR;
return videobuf_poll_stream(file, &fh->vbiq, wait);
}
if (res_check(fh, RESOURCE_VIDEO)) {
/* streaming capture */
if (list_empty(&fh->vidq.stream))
return POLLERR;
buf = list_entry(fh->vidq.stream.next,
struct cx23885_buffer, vb.stream);
} else {
/* read() capture */
buf = (struct cx23885_buffer *)fh->vidq.read_buf;
if (NULL == buf)
return POLLERR;
}
poll_wait(file, &buf->vb.done, wait);
if (buf->vb.state == VIDEOBUF_DONE ||
buf->vb.state == VIDEOBUF_ERROR)
return POLLIN|POLLRDNORM;
return 0;
}
static int video_release(struct file *file)
{
struct cx23885_fh *fh = file->private_data;
struct cx23885_dev *dev = fh->dev;
/* turn off overlay */
if (res_check(fh, RESOURCE_OVERLAY)) {
/* FIXME */
res_free(dev, fh, RESOURCE_OVERLAY);
}
/* stop video capture */
if (res_check(fh, RESOURCE_VIDEO)) {
videobuf_queue_cancel(&fh->vidq);
res_free(dev, fh, RESOURCE_VIDEO);
}
if (fh->vidq.read_buf) {
buffer_release(&fh->vidq, fh->vidq.read_buf);
kfree(fh->vidq.read_buf);
}
/* stop vbi capture */
if (res_check(fh, RESOURCE_VBI)) {
if (fh->vbiq.streaming)
videobuf_streamoff(&fh->vbiq);
if (fh->vbiq.reading)
videobuf_read_stop(&fh->vbiq);
res_free(dev, fh, RESOURCE_VBI);
}
videobuf_mmap_free(&fh->vidq);
file->private_data = NULL;
kfree(fh);
/* We are not putting the tuner to sleep here on exit, because
* we want to use the mpeg encoder in another session to capture
* tuner video. Closing this will result in no video to the encoder.
*/
return 0;
}
static int video_mmap(struct file *file, struct vm_area_struct *vma)
{
struct cx23885_fh *fh = file->private_data;
return videobuf_mmap_mapper(get_queue(fh), vma);
}
/* ------------------------------------------------------------------ */
/* VIDEO CTRL IOCTLS */
static int cx23885_get_control(struct cx23885_dev *dev,
struct v4l2_control *ctl)
{
dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
return 0;
}
static int cx23885_set_control(struct cx23885_dev *dev,
struct v4l2_control *ctl)
{
dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
" (disabled - no action)\n", __func__);
return 0;
}
static void init_controls(struct cx23885_dev *dev)
{
struct v4l2_control ctrl;
int i;
for (i = 0; i < CX23885_CTLS; i++) {
ctrl.id = cx23885_ctls[i].v.id;
ctrl.value = cx23885_ctls[i].v.default_value;
cx23885_set_control(dev, &ctrl);
}
}
/* ------------------------------------------------------------------ */
/* VIDEO IOCTLS */
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_fh *fh = priv;
f->fmt.pix.width = fh->width;
f->fmt.pix.height = fh->height;
f->fmt.pix.field = fh->vidq.field;
f->fmt.pix.pixelformat = fh->fmt->fourcc;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * fh->fmt->depth) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
return 0;
}
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
struct cx23885_fmt *fmt;
enum v4l2_field field;
unsigned int maxw, maxh;
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (NULL == fmt)
return -EINVAL;
field = f->fmt.pix.field;
maxw = norm_maxw(dev->tvnorm);
maxh = norm_maxh(dev->tvnorm);
if (V4L2_FIELD_ANY == field) {
field = (f->fmt.pix.height > maxh/2)
? V4L2_FIELD_INTERLACED
: V4L2_FIELD_BOTTOM;
}
switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
maxh = maxh / 2;
break;
case V4L2_FIELD_INTERLACED:
break;
default:
return -EINVAL;
}
f->fmt.pix.field = field;
if (f->fmt.pix.height < 32)
f->fmt.pix.height = 32;
if (f->fmt.pix.height > maxh)
f->fmt.pix.height = maxh;
if (f->fmt.pix.width < 48)
f->fmt.pix.width = 48;
if (f->fmt.pix.width > maxw)
f->fmt.pix.width = maxw;
f->fmt.pix.width &= ~0x03;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * fmt->depth) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
return 0;
}
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
int err;
dprintk(2, "%s()\n", __func__);
err = vidioc_try_fmt_vid_cap(file, priv, f);
if (0 != err)
return err;
fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
fh->width = f->fmt.pix.width;
fh->height = f->fmt.pix.height;
fh->vidq.field = f->fmt.pix.field;
dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
fh->width, fh->height, fh->vidq.field);
cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
return 0;
}
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
strcpy(cap->driver, "cx23885");
strlcpy(cap->card, cx23885_boards[dev->board].name,
sizeof(cap->card));
sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
cap->version = CX23885_VERSION_CODE;
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_VBI_CAPTURE;
if (UNSET != dev->tuner_type)
cap->capabilities |= V4L2_CAP_TUNER;
return 0;
}
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (unlikely(f->index >= ARRAY_SIZE(formats)))
return -EINVAL;
strlcpy(f->description, formats[f->index].name,
sizeof(f->description));
f->pixelformat = formats[f->index].fourcc;
return 0;
}
#ifdef CONFIG_VIDEO_V4L1_COMPAT
static int vidiocgmbuf(struct file *file, void *priv,
struct video_mbuf *mbuf)
{
struct cx23885_fh *fh = priv;
struct videobuf_queue *q;
struct v4l2_requestbuffers req;
unsigned int i;
int err;
q = get_queue(fh);
memset(&req, 0, sizeof(req));
req.type = q->type;
req.count = 8;
req.memory = V4L2_MEMORY_MMAP;
err = videobuf_reqbufs(q, &req);
if (err < 0)
return err;
mbuf->frames = req.count;
mbuf->size = 0;
for (i = 0; i < mbuf->frames; i++) {
mbuf->offsets[i] = q->bufs[i]->boff;
mbuf->size += q->bufs[i]->bsize;
}
return 0;
}
#endif
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
struct cx23885_fh *fh = priv;
return videobuf_reqbufs(get_queue(fh), p);
}
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct cx23885_fh *fh = priv;
return videobuf_querybuf(get_queue(fh), p);
}
static int vidioc_qbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct cx23885_fh *fh = priv;
return videobuf_qbuf(get_queue(fh), p);
}
static int vidioc_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct cx23885_fh *fh = priv;
return videobuf_dqbuf(get_queue(fh), p,
file->f_flags & O_NONBLOCK);
}
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type i)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = fh->dev;
dprintk(1, "%s()\n", __func__);
if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
return -EINVAL;
if (unlikely(i != fh->type))
return -EINVAL;
if (unlikely(!res_get(dev, fh, get_resource(fh))))
return -EBUSY;
return videobuf_streamon(get_queue(fh));
}
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = fh->dev;
int err, res;
dprintk(1, "%s()\n", __func__);
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (i != fh->type)
return -EINVAL;
res = get_resource(fh);
err = videobuf_streamoff(get_queue(fh));
if (err < 0)
return err;
res_free(dev, fh, res);
return 0;
}
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
dprintk(1, "%s()\n", __func__);
mutex_lock(&dev->lock);
cx23885_set_tvnorm(dev, *tvnorms);
mutex_unlock(&dev->lock);
return 0;
}
static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
{
static const char *iname[] = {
[CX23885_VMUX_COMPOSITE1] = "Composite1",
[CX23885_VMUX_COMPOSITE2] = "Composite2",
[CX23885_VMUX_COMPOSITE3] = "Composite3",
[CX23885_VMUX_COMPOSITE4] = "Composite4",
[CX23885_VMUX_SVIDEO] = "S-Video",
[CX23885_VMUX_TELEVISION] = "Television",
[CX23885_VMUX_CABLE] = "Cable TV",
[CX23885_VMUX_DVB] = "DVB",
[CX23885_VMUX_DEBUG] = "for debug only",
};
unsigned int n;
dprintk(1, "%s()\n", __func__);
n = i->index;
if (n >= 4)
return -EINVAL;
if (0 == INPUT(n)->type)
return -EINVAL;
memset(i, 0, sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name, iname[INPUT(n)->type]);
if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
(CX23885_VMUX_CABLE == INPUT(n)->type))
i->type = V4L2_INPUT_TYPE_TUNER;
i->std = CX23885_NORMS;
return 0;
}
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
dprintk(1, "%s()\n", __func__);
return cx23885_enum_input(dev, i);
}
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
*i = dev->input;
dprintk(1, "%s() returns %d\n", __func__, *i);
return 0;
}
static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
dprintk(1, "%s(%d)\n", __func__, i);
if (i >= 4) {
dprintk(1, "%s() -EINVAL\n", __func__);
return -EINVAL;
}
mutex_lock(&dev->lock);
cx23885_video_mux(dev, i);
mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qctrl)
{
qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
if (unlikely(qctrl->id == 0))
return -EINVAL;
return cx23885_ctrl_query(qctrl);
}
static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctl)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
return cx23885_get_control(dev, ctl);
}
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctl)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
return cx23885_set_control(dev, ctl);
}
static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
if (unlikely(UNSET == dev->tuner_type))
return -EINVAL;
if (0 != t->index)
return -EINVAL;
strcpy(t->name, "Television");
t->type = V4L2_TUNER_ANALOG_TV;
t->capability = V4L2_TUNER_CAP_NORM;
t->rangehigh = 0xffffffffUL;
t->signal = 0xffff ; /* LOCKED */
return 0;
}
static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
if (UNSET == dev->tuner_type)
return -EINVAL;
if (0 != t->index)
return -EINVAL;
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = fh->dev;
if (unlikely(UNSET == dev->tuner_type))
return -EINVAL;
/* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
f->frequency = dev->freq;
cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
return 0;
}
static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
{
if (unlikely(UNSET == dev->tuner_type))
return -EINVAL;
if (unlikely(f->tuner != 0))
return -EINVAL;
mutex_lock(&dev->lock);
dev->freq = f->frequency;
cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
/* When changing channels it is required to reset TVAUDIO */
msleep(10);
mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = fh->dev;
if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
return -EINVAL;
if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
return -EINVAL;
return
cx23885_set_freq(dev, f);
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vidioc_g_register(struct file *file, void *fh,
struct v4l2_dbg_register *reg)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
if (!v4l2_chip_match_host(&reg->match))
return -EINVAL;
cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
return 0;
}
static int vidioc_s_register(struct file *file, void *fh,
struct v4l2_dbg_register *reg)
{
struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
if (!v4l2_chip_match_host(&reg->match))
return -EINVAL;
cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
return 0;
}
#endif
/* ----------------------------------------------------------- */
static void cx23885_vid_timeout(unsigned long data)
{
struct cx23885_dev *dev = (struct cx23885_dev *)data;
struct cx23885_dmaqueue *q = &dev->vidq;
struct cx23885_buffer *buf;
unsigned long flags;
cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
cx_clear(VID_A_DMA_CTL, 0x11);
spin_lock_irqsave(&dev->slock, flags);
while (!list_empty(&q->active)) {
buf = list_entry(q->active.next,
struct cx23885_buffer, vb.queue);
list_del(&buf->vb.queue);
buf->vb.state = VIDEOBUF_ERROR;
wake_up(&buf->vb.done);
printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
dev->name, buf, buf->vb.i,
(unsigned long)buf->risc.dma);
}
cx23885_restart_video_queue(dev, q);
spin_unlock_irqrestore(&dev->slock, flags);
}
int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
{
u32 mask, count;
int handled = 0;
mask = cx_read(VID_A_INT_MSK);
if (0 == (status & mask))
return handled;
cx_write(VID_A_INT_STAT, status);
dprintk(2, "%s() status = 0x%08x\n", __func__, status);
/* risc op code error */
if (status & (1 << 16)) {
printk(KERN_WARNING "%s/0: video risc op code error\n",
dev->name);
cx_clear(VID_A_DMA_CTL, 0x11);
cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
}
/* risc1 y */
if (status & 0x01) {
spin_lock(&dev->slock);
count = cx_read(VID_A_GPCNT);
cx23885_video_wakeup(dev, &dev->vidq, count);
spin_unlock(&dev->slock);
handled++;
}
/* risc2 y */
if (status & 0x10) {
dprintk(2, "stopper video\n");
spin_lock(&dev->slock);
cx23885_restart_video_queue(dev, &dev->vidq);
spin_unlock(&dev->slock);
handled++;
}
return handled;
}
/* ----------------------------------------------------------- */
/* exported stuff */
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.read = video_read,
.poll = video_poll,
.mmap = video_mmap,
.ioctl = video_ioctl2,
};
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_g_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_s_std = vidioc_s_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
};
static struct video_device cx23885_vbi_template;
static struct video_device cx23885_video_template = {
.name = "cx23885-video",
.fops = &video_fops,
.minor = -1,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = CX23885_NORMS,
.current_norm = V4L2_STD_NTSC_M,
};
static const struct v4l2_file_operations radio_fops = {
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.ioctl = video_ioctl2,
};
void cx23885_video_unregister(struct cx23885_dev *dev)
{
dprintk(1, "%s()\n", __func__);
cx_clear(PCI_INT_MSK, 1);
if (dev->video_dev) {
if (-1 != dev->video_dev->minor)
video_unregister_device(dev->video_dev);
else
video_device_release(dev->video_dev);
dev->video_dev = NULL;
btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
}
}
int cx23885_video_register(struct cx23885_dev *dev)
{
int err;
dprintk(1, "%s()\n", __func__);
spin_lock_init(&dev->slock);
/* Initialize VBI template */
memcpy(&cx23885_vbi_template, &cx23885_video_template,
sizeof(cx23885_vbi_template));
strcpy(cx23885_vbi_template.name, "cx23885-vbi");
dev->tvnorm = cx23885_video_template.current_norm;
/* init video dma queues */
INIT_LIST_HEAD(&dev->vidq.active);
INIT_LIST_HEAD(&dev->vidq.queued);
dev->vidq.timeout.function = cx23885_vid_timeout;
dev->vidq.timeout.data = (unsigned long)dev;
init_timer(&dev->vidq.timeout);
cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
VID_A_DMA_CTL, 0x11, 0x00);
/* Don't enable VBI yet */
cx_set(PCI_INT_MSK, 1);
/* register v4l devices */
dev->video_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_video_template, "video");
err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
video_nr[dev->nr]);
if (err < 0) {
printk(KERN_INFO "%s: can't register video device\n",
dev->name);
goto fail_unreg;
}
printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
dev->name, dev->video_dev->num);
/* initial device configuration */
mutex_lock(&dev->lock);
cx23885_set_tvnorm(dev, dev->tvnorm);
init_controls(dev);
cx23885_video_mux(dev, 0);
mutex_unlock(&dev->lock);
return 0;
fail_unreg:
cx23885_video_unregister(dev);
return err;
}
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