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linux/drivers/media/dvb/ngene/ngene-v4l2.c
Matthias Benesch dae52d009f V4L/DVB: ngene: Initial check-in 
Add Micronas nGene PCIe bridge driver.

The source code was provided by Micronas / Ralph Metzler,
and has been reformatted to comply with Linux Codingstyle.

Signed-off-by: Matthias Benesch <twoof7@freenet.de>
Signed-off-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:53 -03:00

1938 lines
50 KiB
C
Raw Blame History

/*
* ngene_v4l2.c: nGene PCIe bridge driver V4L2 support
*
* Copyright (C) 2005-2007 Micronas
*
* Based on the initial V4L2 support port by Thomas Eschbach.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 only, as published by the Free Software Foundation.
*
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/unistd.h>
#include <linux/time.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/videodev2.h>
#include <linux/videodev.h>
#include <linux/version.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/kmap_types.h>
#include <linux/videodev.h>
#include <media/v4l2-dev.h>
#include "ngene.h"
#include "ngene-ioctls.h"
/****************************************************************************/
static unsigned int gbuffers = 8;
static unsigned int gbufsize = 0x208000;
enum km_type ngene_km_types[] = {
KM_USER0,
KM_USER1,
KM_SOFTIRQ0,
KM_SOFTIRQ1,
};
#define V4L2_STD_NTSC_M_KOREA ((v4l2_std_id)0x00004000)
#define V4L2_STD_SECAM_L1 ((v4l2_std_id)0x00008000)
static inline void *my_video_get_drvdata(struct video_device *vd)
{
return dev_get_drvdata(vd->dev);
}
static inline void my_video_set_drvdata(struct video_device *vd, void *d)
{
dev_set_drvdata(vd->dev, d);
}
static struct ngene_tvnorm ngene_tvnorms_hd[] = {
{
.v4l2_id = V4L2_STD_PAL_BG,
.name = "1080i50",
.swidth = 1920,
.sheight = 1080,
.tuner_norm = 1,
.soundstd = 1,
}
};
static struct ngene_tvnorm ngene_tvnorms_sd[] = {
/* PAL-BDGHI */
/* max. active video is actually 922, but 924 is divisible by 4 & 3!*/
/* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
{
.v4l2_id = V4L2_STD_PAL_BG,
.name = "PAL-BG",
.swidth = 720,
.sheight = 576,
.tuner_norm = 1,
.soundstd = 1,
}, {
.v4l2_id = V4L2_STD_PAL_DK,
.name = "PAL-DK",
.swidth = 720,
.sheight = 576,
.tuner_norm = 2,
.soundstd = 2,
}, {
.v4l2_id = V4L2_STD_PAL_H,
.name = "PAL-H",
.swidth = 720,
.sheight = 576,
.tuner_norm = 0,
.soundstd = 1,
}, {
.v4l2_id = V4L2_STD_PAL_I,
.name = "PAL-I",
.swidth = 720,
.sheight = 576,
.tuner_norm = 4,
.soundstd = 4,
}, {
.v4l2_id = V4L2_STD_PAL_M,
.name = "PAL_M",
.swidth = 720,
.sheight = 5760,
.tuner_norm = 7,
.soundstd = 5,
}, {
.v4l2_id = V4L2_STD_NTSC_M,
.name = "NTSC_M",
.swidth = 720,
.sheight = 480,
.tuner_norm = 7,
.soundstd = 5,
}, {
.v4l2_id = V4L2_STD_NTSC_M_JP,
.name = "NTSC_M_JP",
.swidth = 720,
.sheight = 480,
.tuner_norm = 7,
.soundstd = 6,
}, {
.v4l2_id = V4L2_STD_PAL_N,
.name = "PAL-N",
.swidth = 720,
.sheight = 576,
.tuner_norm = 7,
.soundstd = 5,
}, {
.v4l2_id = V4L2_STD_SECAM_B,
.name = "SECAM_B",
.swidth = 720,
.sheight = 576,
.tuner_norm = 1,
.soundstd = 1,
}, {
.v4l2_id = V4L2_STD_SECAM_D,
.name = "SECAM_D",
.swidth = 720,
.sheight = 576,
.tuner_norm = 2,
.soundstd = 2,
}, {
.v4l2_id = V4L2_STD_SECAM_G,
.name = "SECAM_G",
.swidth = 720,
.sheight = 576,
.tuner_norm = 3,
.soundstd = 1,
}, {
.v4l2_id = V4L2_STD_SECAM_H,
.name = "SECAM_H",
.swidth = 720,
.sheight = 576,
.tuner_norm = 3,
.soundstd = 1,
}, {
.v4l2_id = V4L2_STD_SECAM_K,
.name = "SECAM_K",
.swidth = 720,
.sheight = 576,
.tuner_norm = 2,
.soundstd = 2,
}, {
.v4l2_id = V4L2_STD_SECAM_K1,
.name = "SECAM_K1",
.swidth = 720,
.sheight = 576,
.tuner_norm = 2,
.soundstd = 2,
}, {
.v4l2_id = V4L2_STD_SECAM_L,
.name = "SECAM_L",
.swidth = 720,
.sheight = 576,
.tuner_norm = 5,
.soundstd = 3,
}, {
.v4l2_id = V4L2_STD_NTSC_M_KOREA,
.name = "NTSC_M_KOREA",
.swidth = 720,
.sheight = 480,
.tuner_norm = 7,
.soundstd = 7,
}, {
.v4l2_id = V4L2_STD_SECAM_L1,
.name = "SECAM_L1",
.swidth = 720,
.sheight = 576,
.tuner_norm = 6,
.soundstd = 3,
}
};
static const int NGENE_TVNORMS = ARRAY_SIZE(ngene_tvnorms_sd);
static u8 BlackLine[1440] = {
/* 0x80, */ 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
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0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
0x80,
};
#define V4L2_CID_PRIVATE_SHARPNESS (V4L2_CID_PRIVATE_BASE + 0)
#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 1)
static const struct v4l2_queryctrl no_ctl = {
.name = "no_ctl",
.flags = V4L2_CTRL_FLAG_DISABLED,
};
static const struct v4l2_queryctrl ngene_ctls[] = {
/* --- video --- */
{
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.minimum = -127,
.maximum = 127,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.minimum = 0,
.maximum = 63,
.step = 1,
.default_value = 30,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.minimum = 0,
.maximum = 4094,
.step = 1,
.default_value = 2000,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_HUE,
.name = "Hue",
.minimum = -2047,
.maximum = 2047,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},
/* --- audio --- */
{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}, {
.id = V4L2_CID_PRIVATE_SHARPNESS,
.name = "sharpness",
.minimum = 0,
.maximum = 100,
.step = 1,
.default_value = 50,
.type = V4L2_CTRL_TYPE_INTEGER,
},
};
static const int NGENE_CTLS = ARRAY_SIZE(ngene_ctls);
static const struct ngene_format ngene_formats[] = {
{
.name = "4:2:2, packed, YUYV",
.palette = -1,
.fourcc = V4L2_PIX_FMT_YUYV,
.format = V4L2_PIX_FMT_YUYV,
.palette = VIDEO_PALETTE_YUYV,
.depth = 16,
.flags = 0x02,/* FORMAT_FLAGS_PACKED, */
}
};
static const unsigned int NGENE_FORMATS = ARRAY_SIZE(ngene_formats);
/****************************************************************************/
static struct videobuf_queue *ngene_queue(struct ngene_vopen *vopen)
{
struct videobuf_queue *q = NULL;
switch (vopen->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
q = &vopen->vbuf_q;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
q = &vopen->vbi;
break;
default:
break;
}
return q;
}
static int ngene_resource(struct ngene_vopen *vopen)
{
int res = 0;
switch (vopen->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
res = RESOURCE_VIDEO;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
res = RESOURCE_VBI;
break;
default:
break;
}
return res;
}
static int ngene_try_fmt(struct ngene_vopen *vopen, struct ngene_channel *chan,
struct v4l2_format *f)
{
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
{
const struct ngene_format *fmt;
enum v4l2_field field;
unsigned int maxw, maxh;
int maxLinesPerField;
fmt = ngene_formats;
if (NULL == fmt)
return -EINVAL;
/* fixup format */
maxw = chan->tvnorms[chan->tvnorm].swidth;
maxLinesPerField = chan->tvnorms[chan->tvnorm].sheight;
maxh = maxLinesPerField;
field = f->fmt.pix.field;
if (V4L2_FIELD_ANY == field)
field = (f->fmt.pix.height > maxh / 2)
? V4L2_FIELD_INTERLACED : V4L2_FIELD_BOTTOM;
if (V4L2_FIELD_SEQ_BT == field)
field = V4L2_FIELD_SEQ_TB;
/* update data for the application */
f->fmt.pix.field = field;
if (f->fmt.pix.width < 48)
f->fmt.pix.width = 48;
if (f->fmt.pix.height < 32)
f->fmt.pix.height = 32;
if (f->fmt.pix.width > maxw)
f->fmt.pix.width = maxw;
if (f->fmt.pix.height > maxh)
f->fmt.pix.height = maxh;
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;
}
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
return -EINVAL;
case V4L2_BUF_TYPE_VBI_CAPTURE:
return 0;
default:
return -EINVAL;
}
}
/****************************************************************************/
/* Analog driver stuff ******************************************************/
/****************************************************************************/
static int check_alloc_res(struct ngene_channel *channel,
struct ngene_vopen *vopen, int bit)
{
if (vopen->resources & bit)
/* have it already allocated */
return 1;
/* is it free? */
down(&channel->reslock);
if (channel->resources & bit) {
/* no, someone else uses it */
up(&channel->reslock);
return 0;
}
/* it's free, grab it */
vopen->resources |= bit;
channel->resources |= bit;
up(&channel->reslock);
return 1;
}
static int check_res(struct ngene_vopen *vopen, int bit)
{
return vopen->resources & bit;
}
static int locked_res(struct ngene_channel *chan, int bit)
{
return chan->resources & bit;
}
static void free_res(struct ngene_channel *channel,
struct ngene_vopen *vopen, int bits)
{
down(&channel->reslock);
vopen->resources &= ~bits;
channel->resources &= ~bits;
up(&channel->reslock);
}
/****************************************************************************/
/* MISC HELPERS *************************************************************/
/****************************************************************************/
static int ngene_g_fmt(struct ngene_vopen *vopen, struct v4l2_format *f)
{
if (!vopen->fmt)
vopen->fmt = ngene_formats;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
f->fmt.pix.width = vopen->width;
f->fmt.pix.height = vopen->height;
f->fmt.pix.field = vopen->vbuf_q.field;
f->fmt.pix.pixelformat = vopen->fmt->fourcc;
f->fmt.pix.bytesperline = (f->fmt.pix.width * 16) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
return 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
memset(&f->fmt.win, 0, sizeof(struct v4l2_window));
return 0;
f->fmt.win.w = vopen->ov.w;
f->fmt.win.field = vopen->ov.field;
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
return -EINVAL;
default:
return -EINVAL;
}
}
static int ngene_switch_type(struct ngene_vopen *vopen, enum v4l2_buf_type type)
{
struct videobuf_queue *q = ngene_queue(vopen);
int res = ngene_resource(vopen);
if (check_res(vopen, res))
return -EBUSY;
if (videobuf_queue_is_busy(q))
return -EBUSY;
vopen->type = type;
return 0;
}
static int ngene_s_fmt(struct ngene_vopen *vopen, struct ngene_channel *chan,
struct v4l2_format *f)
{
int retval;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
{
const struct ngene_format *fmt;
retval = ngene_try_fmt(vopen, chan, f);
if (0 != retval)
return retval;
retval = ngene_switch_type(vopen, f->type);
if (0 != retval)
return retval;
fmt = ngene_formats;
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV)
return -EINVAL;
/* update our state informations */
mutex_lock(&vopen->vbuf_q.lock);
vopen->fmt = fmt;
vopen->vbuf_q.field = f->fmt.pix.field;
vopen->vbuf_q.last = V4L2_FIELD_INTERLACED;
vopen->width = f->fmt.pix.width;
vopen->height = f->fmt.pix.height;
chan->init.fmt = fmt;
chan->init.width = f->fmt.pix.width;
chan->init.height = f->fmt.pix.height;
mutex_unlock(&vopen->vbuf_q.lock);
return 0;
}
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
return -EINVAL;
case V4L2_BUF_TYPE_VBI_CAPTURE:
return -EINVAL;
default:
return -EINVAL;
}
}
/****************************************************************************/
/* SG support ***************************************************************/
/****************************************************************************/
static inline enum km_type ngene_kmap_type(int out)
{
return ngene_km_types[(in_softirq() ? 2 : 0) + out];
}
static inline void *ngene_kmap(struct page *page, int out)
{
return kmap_atomic(page, ngene_kmap_type(out));
}
static inline void ngene_kunmap(void *vaddr, int out)
{
kunmap_atomic(vaddr, ngene_kmap_type(out));
}
struct scatter_walk {
struct scatterlist *sg;
struct page *page;
void *data;
unsigned int len_this_page;
unsigned int len_this_segment;
unsigned int offset;
};
static inline struct scatterlist *sg_next(struct scatterlist *sg)
{
return sg + 1;
}
void *scatterwalk_whichbuf(struct scatter_walk *walk, unsigned int nbytes)
{
if (nbytes <= walk->len_this_page &&
(((unsigned long)walk->data) &
(PAGE_CACHE_SIZE - 1)) + nbytes <= PAGE_CACHE_SIZE)
return walk->data;
else
return walk->data;
}
void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg)
{
unsigned int rest_of_page;
walk->sg = sg;
walk->page = sg->page;
walk->len_this_segment = sg->length;
rest_of_page = PAGE_CACHE_SIZE - (sg->offset & (PAGE_CACHE_SIZE - 1));
walk->len_this_page = min(sg->length, rest_of_page);
walk->offset = sg->offset;
}
void scatterwalk_map(struct scatter_walk *walk, int out)
{
walk->data = ngene_kmap(walk->page, out) + walk->offset;
}
static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
unsigned int more)
{
/* walk->data may be pointing the first byte of the next page;
however, we know we transfered at least one byte. So,
walk->data - 1 will be a virtual address in the mapped page. */
if (out)
flush_dcache_page(walk->page);
if (more) {
walk->len_this_segment -= walk->len_this_page;
if (walk->len_this_segment) {
walk->page++;
walk->len_this_page = min(walk->len_this_segment,
(unsigned)PAGE_CACHE_SIZE);
walk->offset = 0;
} else {
scatterwalk_start(walk, sg_next(walk->sg));
}
}
}
void scatterwalk_done(struct scatter_walk *walk, int out, int more)
{
ngene_kunmap(walk->data, out);
if (walk->len_this_page == 0 || !more)
scatterwalk_pagedone(walk, out, more);
}
/*
* Do not call this unless the total length of all of the fragments
* has been verified as multiple of the block size.
*/
int scatterwalk_copychunks(struct scatter_walk *walk, size_t nbytes, int out)
{
walk->offset += nbytes;
walk->len_this_page -= nbytes;
walk->len_this_segment -= nbytes;
return 0;
}
static void *vid_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
{
struct ngene_channel *chan = priv;
struct ngene_buffer *item;
int wstrich, hstrich;
u8 *odd, *even;
u32 bpl = chan->tvnorms[chan->tvnorm].swidth * 2;
struct scatter_walk walk_out;
const unsigned int bsize = PAGE_SIZE;
unsigned int nbytes;
int rest_of_buffer, ah, rwstrich;
spin_lock(&chan->s_lock);
if (list_empty(&chan->capture)) {
chan->evenbuffer = NULL;
goto out;
}
item = list_entry(chan->capture.next, struct ngene_buffer, vb.queue);
if (chan->tvnorms[chan->tvnorm].sheight == 1080)
buf += 3840;
odd = buf;
hstrich = item->vb.height;
if (hstrich > chan->tvnorms[chan->tvnorm].sheight)
hstrich = chan->tvnorms[chan->tvnorm].sheight;
wstrich = item->vb.width;
if (wstrich > chan->tvnorms[chan->tvnorm].swidth)
wstrich = chan->tvnorms[chan->tvnorm].swidth;
wstrich <<= 1;
if (flags & BEF_EVEN_FIELD) {
chan->evenbuffer = buf;
if (chan->lastbufferflag) {
chan->lastbufferflag = 0;
if (chan->tvnorms[chan->tvnorm].sheight == 576) {
memcpy(buf + 413280, BlackLine, 1440);
memcpy(buf + 411840, BlackLine, 1440);
}
goto out;
}
}
chan->lastbufferflag = 1;
if (chan->evenbuffer)
even = chan->evenbuffer;
else
even = odd;
if (chan->tvnorms[chan->tvnorm].sheight == 576) {
memcpy(odd + 413280, BlackLine, 1440);
memcpy(odd + 411840, BlackLine, 1440);
}
nbytes = item->vb.dma.sglen * PAGE_SIZE;
scatterwalk_start(&walk_out, item->vb.dma.sglist);
ah = 0;
rwstrich = wstrich;
do {
u8 *dst_p;
rest_of_buffer = bsize;
scatterwalk_map(&walk_out, 1);
dst_p = scatterwalk_whichbuf(&walk_out, bsize);
nbytes -= bsize;
scatterwalk_copychunks(&walk_out, bsize, 1);
while (rest_of_buffer > 0 && ah < hstrich) {
if (rest_of_buffer >= rwstrich) {
if (ah % 2 == 0) {
memcpy(walk_out.data +
(bsize - rest_of_buffer),
odd, rwstrich);
odd += bpl - (wstrich - rwstrich);
} else {
memcpy(walk_out.data +
(bsize - rest_of_buffer),
even, rwstrich);
even += bpl - (wstrich - rwstrich);
}
rest_of_buffer -= rwstrich;
ah++;
rwstrich = wstrich;
} else {
if (ah % 2 == 0) {
memcpy(walk_out.data +
(bsize - rest_of_buffer),
odd, rest_of_buffer);
odd += rest_of_buffer;
} else {
memcpy(walk_out.data +
(bsize - rest_of_buffer),
even, rest_of_buffer);
even += rest_of_buffer;
}
rwstrich -= rest_of_buffer;
rest_of_buffer = 0;
}
}
scatterwalk_done(&walk_out, 1, nbytes);
} while (nbytes && ah < hstrich);
{
struct timeval ts;
do_gettimeofday(&ts);
list_del(&item->vb.queue);
item->vb.state = STATE_DONE;
item->vb.ts = ts;
wake_up(&item->vb.done);
chan->evenbuffer = NULL;
}
out:
spin_unlock(&chan->s_lock);
return 0;
}
static void *snd_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
{
struct ngene_channel *chan = priv;
struct mychip *mychip = chan->mychip;
if (chan->audiomute == 0)
memcpy(chan->soundbuffer, (u8 *) buf, MAX_AUDIO_BUFFER_SIZE);
else
memset(chan->soundbuffer, 0, MAX_AUDIO_BUFFER_SIZE);
if (mychip->substream != NULL) {
if (chan->sndbuffflag == 0)
chan->sndbuffflag = 1;
else
chan->sndbuffflag = 0;
spin_unlock(&mychip->lock);
snd_pcm_period_elapsed(mychip->substream);
spin_lock(&mychip->lock);
}
return 0;
}
static void set_analog_transfer(struct ngene_channel *chan, int state)
{
struct ngene_channel *ch;
u8 flags = 0;
ch = &chan->dev->channel[chan->number + 2];
/* printk(KERN_INFO "set_analog_transfer %d\n", state); */
if (1) { /* chan->tun_dec_rdy == 1){ */
if (state) {
chan->Capture1Length =
chan->tvnorms[chan->tvnorm].swidth *
chan->tvnorms[chan->tvnorm].sheight;
if (chan->tvnorms[chan->tvnorm].sheight == 576)
chan->nLines = 287;
else if (chan->tvnorms[chan->tvnorm].sheight == 1080)
chan->nLines = 541;
else
chan->nLines =
chan->tvnorms[chan->tvnorm].sheight / 2;
chan->nBytesPerLine =
chan->tvnorms[chan->tvnorm].swidth * 2;
if (chan->dev->card_info->io_type[chan->number] ==
NGENE_IO_HDTV) {
chan->itumode = 2;
flags = SFLAG_ORDER_LUMA_CHROMA;
} else {
chan->itumode = 0;
flags = SFLAG_ORDER_LUMA_CHROMA;
}
chan->pBufferExchange = vid_exchange;
ngene_command_stream_control(chan->dev, chan->number,
0x80,
SMODE_VIDEO_CAPTURE,
flags);
ch->Capture1Length = MAX_AUDIO_BUFFER_SIZE;
ch->pBufferExchange = snd_exchange;
ngene_command_stream_control(ch->dev, ch->number,
0x80,
SMODE_AUDIO_CAPTURE, 0);
ch->soundstreamon = 1;
} else {
ngene_command_stream_control(chan->dev, chan->number,
0, 0, 0);
ngene_command_stream_control(ch->dev, ch->number,
0, 0, 0);
ch->soundstreamon = 0;
}
}
}
static int ngene_analog_start_feed(struct ngene_channel *chan)
{
int freerunmode = 1;
struct i2c_adapter *adapter = &chan->i2c_adapter;
if (chan->users == 0 && chan->number < 2) {
chan->evenbuffer = NULL;
chan->users = 1;
i2c_clients_command(adapter, IOCTL_MIC_DEC_FREESYNC,
&freerunmode);
msleep(25);
set_analog_transfer(chan, 1);
msleep(25);
freerunmode = 0;
i2c_clients_command(adapter, IOCTL_MIC_DEC_FREESYNC,
&freerunmode);
}
return chan->users;
}
static int ngene_analog_stop_feed(struct ngene_channel *chan)
{
int freerunmode = 1;
struct i2c_adapter *adapter = &chan->i2c_adapter;
if (chan->users == 1 && chan->number < 2) {
chan->users = 0;
i2c_clients_command(adapter,
IOCTL_MIC_DEC_FREESYNC, &freerunmode);
msleep(20);
set_analog_transfer(chan, 0);
}
return 0;
}
/****************************************************************************/
/* V4L2 API interface *******************************************************/
/****************************************************************************/
void ngene_dma_free(struct videobuf_queue *q,
struct ngene_channel *chan, struct ngene_buffer *buf)
{
videobuf_waiton(&buf->vb, 0, 0);
videobuf_dma_unmap(q, &buf->vb.dma);
videobuf_dma_free(&buf->vb.dma);
buf->vb.state = STATE_NEEDS_INIT;
}
static int ngene_prepare_buffer(struct videobuf_queue *q,
struct ngene_channel *chan,
struct ngene_buffer *buf,
const struct ngene_format *fmt,
unsigned int width, unsigned int height,
enum v4l2_field field)
{
int rc = 0;
/* check settings */
if (NULL == fmt)
return -EINVAL;
if (width < 48 || height < 32)
return -EINVAL;
buf->vb.size = (width * height * 16 /* fmt->depth */) >> 3;
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
/* alloc + fill struct ngene_buffer (if changed) */
if (buf->vb.width != width || buf->vb.height != height ||
buf->vb.field != field || buf->fmt != fmt ||
buf->tvnorm != chan->tvnorm) {
buf->vb.width = width;
buf->vb.height = height;
buf->vb.field = field;
buf->tvnorm = chan->tvnorm;
buf->fmt = fmt;
ngene_dma_free(q, chan, buf);
}
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
if (buf->vb.field == 0)
buf->vb.field = V4L2_FIELD_INTERLACED;
if (STATE_NEEDS_INIT == buf->vb.state) {
buf->vb.width = width;
buf->vb.height = height;
buf->vb.field = field;
buf->tvnorm = chan->tvnorm;
buf->fmt = fmt;
rc = videobuf_iolock(q, &buf->vb, &chan->fbuf);
if (0 != rc)
goto fail;
}
if (!buf->vb.dma.bus_addr)
videobuf_dma_sync(q, &buf->vb.dma);
buf->vb.state = STATE_PREPARED;
return 0;
fail:
ngene_dma_free(q, chan, buf);
return rc;
}
static int buffer_setup(struct videobuf_queue *q,
unsigned int *count, unsigned int *size)
{
struct ngene_vopen *vopen = q->priv_data;
*size = 2 * vopen->width * vopen->height;
if (0 == *count)
*count = gbuffers;
while (*size * *count > gbuffers * gbufsize)
(*count)--;
q->field = V4L2_FIELD_INTERLACED;
q->last = V4L2_FIELD_INTERLACED;
return 0;
}
static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
struct ngene_vopen *vopen = q->priv_data;
return ngene_prepare_buffer(q, vopen->ch, buf, vopen->fmt,
vopen->width, vopen->height, field);
}
static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
struct ngene_vopen *vopen = q->priv_data;
ngene_dma_free(q, vopen->ch, buf);
}
static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
struct ngene_vopen *vopen = q->priv_data;
struct ngene_channel *chan = vopen->ch;
buf->vb.state = STATE_QUEUED;
list_add_tail(&buf->vb.queue, &chan->capture);
}
static struct videobuf_queue_ops ngene_video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
int video_open(struct inode *inode, struct file *flip)
{
struct ngene_vopen *vopen = NULL;
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
struct video_device *vd = video_devdata(flip);
struct ngene_channel *chan = my_video_get_drvdata(vd);
vopen = kmalloc(sizeof(*vopen), GFP_KERNEL);
if (!vopen)
return -ENOMEM;
memset(vopen, 0, sizeof(*vopen));
flip->private_data = vopen;
v4l2_prio_open(&chan->prio, &vopen->prio);
vopen->ch = chan;
vopen->picxcount = 0;
vopen->type = type;
videobuf_queue_init(&vopen->vbuf_q, &ngene_video_qops,
chan->dev->pci_dev, &chan->s_lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct ngene_buffer), vopen);
vopen->ovfmt = ngene_formats;
chan->videousers++;
if (chan->dev->card_info->switch_ctrl)
chan->dev->card_info->switch_ctrl(chan, 2, 1);
return 0;
}
int video_close(struct inode *inode, struct file *filp)
{
struct ngene_vopen *vopen = filp->private_data;
struct ngene_channel *chan = vopen->ch;
chan->videousers--;
if (!chan->videousers) {
if (chan->dev->card_info->switch_ctrl)
chan->dev->card_info->switch_ctrl(chan, 2, 0);
ngene_analog_stop_feed(chan);
}
videobuf_mmap_free(&vopen->vbuf_q);
v4l2_prio_close(&chan->prio, &vopen->prio);
filp->private_data = NULL;
kfree(vopen);
return 0;
}
/****************************************************************************/
static int vid_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct ngene_vopen *vopen = file->private_data;
struct ngene_channel *chan = vopen->ch;
struct ngene *dev = chan->dev;
struct i2c_adapter *adap = &chan->i2c_adapter;
int retval = 0;
int err = 0;
switch (cmd) {
case VIDIOC_S_CTRL:
{
struct v4l2_control *c = parg;
err = v4l2_prio_check(&chan->prio, &vopen->prio);
if (err)
return err;
if (c->id == V4L2_CID_AUDIO_MUTE) {
if (c->value)
(dev->channel[chan->number + 2]).audiomute = 1;
else
(dev->channel[chan->number + 2]).audiomute = 0;
return 0;
}
if (c->value != V4L2_CID_AUDIO_MUTE)
ngene_analog_stop_feed(chan);
i2c_clients_command(adap, cmd, parg);
return 0;
}
case VIDIOC_S_TUNER:
{
err = v4l2_prio_check(&chan->prio, &vopen->prio);
if (err != 0)
return err;
i2c_clients_command(adap, cmd, parg);
return 0;
}
case VIDIOC_S_FREQUENCY:
{
struct v4l2_frequency *f = parg;
u8 drxa = dev->card_info->demoda[chan->number];
if (chan->fe && chan->fe->ops.tuner_ops.set_frequency)
chan->fe->ops.tuner_ops.
set_frequency(chan->fe, f->frequency * 62500);
if (drxa)
;
}
case VIDIOC_S_INPUT:
{
err = v4l2_prio_check(&chan->prio, &vopen->prio);
if (err != 0)
return err;
i2c_clients_command(adap, cmd, parg);
return 0;
}
case VIDIOC_G_STD:
{
v4l2_std_id *id = parg;
*id = chan->tvnorms[chan->tvnorm].v4l2_id;
return 0;
}
case VIDIOC_S_STD:
{
v4l2_std_id *id = parg;
unsigned int i;
err = v4l2_prio_check(&chan->prio, &vopen->prio);
if (err != 0)
return err;
ngene_analog_stop_feed(chan);
i2c_clients_command(adap, cmd, parg);
for (i = 0; i < chan->tvnorm_num; i++)
if (*id & chan->tvnorms[i].v4l2_id)
break;
if (i == chan->tvnorm_num)
return -EINVAL;
chan->tvnorm = i;
mdelay(50);
ngene_analog_start_feed(chan);
return 0;
}
case VIDIOC_G_FREQUENCY:
case VIDIOC_G_INPUT:
case VIDIOC_S_AUDIO:
case VIDIOC_G_AUDIO:
case VIDIOC_ENUMAUDIO:
case VIDIOC_S_MODULATOR:
case VIDIOC_G_MODULATOR:
case VIDIOC_G_CTRL:
{
i2c_clients_command(adap, cmd, parg);
return 0;
}
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *tuner = parg;
if (tuner->index != 0)
return -EINVAL;
i2c_clients_command(adap, cmd, parg);
if (chan->fe && chan->fe->ops.tuner_ops.get_status) {
u32 status;
chan->fe->ops.tuner_ops.get_status(chan->fe, &status);
tuner->signal = status;
}
return 0;
}
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *c = parg;
int i;
if ((c->id < V4L2_CID_BASE ||
c->id >= V4L2_CID_LASTP1) &&
(c->id < V4L2_CID_PRIVATE_BASE ||
c->id >= V4L2_CID_PRIVATE_LASTP1))
return -EINVAL;
for (i = 0; i < NGENE_CTLS; i++)
if (ngene_ctls[i].id == c->id)
break;
if (i == NGENE_CTLS) {
*c = no_ctl;
return 0;
}
*c = ngene_ctls[i];
return 0;
}
case VIDIOC_G_FMT:
{
struct v4l2_format *f = parg;
ngene_g_fmt(vopen, f);
}
case VIDIOC_S_FMT:
{
struct v4l2_format *f = parg;
ngene_analog_stop_feed(chan);
return ngene_s_fmt(vopen, chan, f);
}
case VIDIOC_ENUM_FMT:
{
struct v4l2_fmtdesc *f = parg;
enum v4l2_buf_type type;
unsigned int i;
int index;
type = f->type;
if (V4L2_BUF_TYPE_VBI_CAPTURE == type) {
/* vbi
index = f->index;
if (0 != index)
return -EINVAL;
memset(f, 0, sizeof(*f));
f->index = index;
f->type = type;
f->pixelformat = V4L2_PIX_FMT_GREY;
strcpy(f->description, "vbi data"); */
return EINVAL;
}
/* video capture + overlay */
index = -1;
for (i = 0; i < NGENE_FORMATS; i++) {
if (ngene_formats[i].fourcc != -1)
index++;
if ((unsigned int)index == f->index)
break;
}
if (NGENE_FORMATS == i)
return -EINVAL;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
break;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
/* dprintk(KERN_DEBUG
"Video Overlay not supported yet.\n"); */
return -EINVAL;
break;
default:
return -EINVAL;
}
memset(f, 0, sizeof(*f));
f->index = index;
f->type = type;
f->pixelformat = ngene_formats[i].fourcc;
strlcpy(f->description, ngene_formats[i].name,
sizeof(f->description));
return 0;
}
case VIDIOC_QUERYSTD:
{
v4l2_std_id *id = parg;
*id = V4L2_STD_625_50 | V4L2_STD_525_60;
return 0;
}
case VIDIOC_ENUMSTD:
{
struct v4l2_standard *e = parg;
unsigned int index = e->index;
if (index >= chan->tvnorm_num)
return -EINVAL;
v4l2_video_std_construct(e, chan->tvnorms[e->index].v4l2_id,
chan->tvnorms[e->index].name);
e->index = index;
return 0;
}
case VIDIOC_QUERYCAP:
{
static char driver[] = {'n', 'G', 'e', 'n', 'e', '\0'};
static char card[] = {'M', 'k', '4', 'x', 'x', '\0'};
struct v4l2_capability *cap = parg;
memset(cap, 0, sizeof(*cap));
if (dev->nr == 0)
card[3] = '0';
else
card[3] = '1';
if (chan->number)
card[4] = 'a';
else
card[4] = 'b';
strlcpy(cap->driver, driver, sizeof(cap->driver));
strlcpy(cap->card, card, sizeof(cap->card));
cap->bus_info[0] = 0;
cap->version = KERNEL_VERSION(0, 8, 1);
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE|
V4L2_CAP_TUNER|V4L2_CAP_AUDIO|
V4L2_CAP_READWRITE|V4L2_CAP_STREAMING;
return 0;
}
case VIDIOC_ENUMINPUT:
{
static char *inputname[2] = {
"AnalogTuner",
"S-Video"
};
struct v4l2_input *i = parg;
unsigned int index;
index = i->index;
if (index > 1)
return -EINVAL;
memset(i, 0, sizeof(*i));
i->index = index;
strlcpy(i->name, inputname[index], sizeof(i->name));
i->type = index ? V4L2_INPUT_TYPE_CAMERA :
V4L2_INPUT_TYPE_TUNER;
i->audioset = 0;
i->tuner = 0;
i->std = V4L2_STD_PAL_BG | V4L2_STD_NTSC_M;
i->status = 0;/* V4L2_IN_ST_NO_H_LOCK; */
return 0;
}
case VIDIOC_G_PARM:
return -EINVAL;
case VIDIOC_S_PARM:
return -EINVAL;
case VIDIOC_G_PRIORITY:
{
enum v4l2_priority *prio = parg;
*prio = v4l2_prio_max(&chan->prio);
return 0;
}
case VIDIOC_S_PRIORITY:
{
enum v4l2_priority *prio = parg;
return v4l2_prio_change(&chan->prio, &vopen->prio, *prio);
return 0;
}
case VIDIOC_CROPCAP:
return -EINVAL;
case VIDIOC_G_CROP:
return -EINVAL;
case VIDIOC_S_CROP:
return -EINVAL;
case VIDIOC_G_FBUF:
{
struct v4l2_framebuffer *fb = parg;
*fb = chan->fbuf;
fb->capability = 0;
if (vopen->ovfmt)
fb->fmt.pixelformat = vopen->ovfmt->fourcc;
return 0;
}
case VIDIOC_REQBUFS:
return videobuf_reqbufs(ngene_queue(vopen), parg);
case VIDIOC_QUERYBUF:
return videobuf_querybuf(ngene_queue(vopen), parg);
case VIDIOC_QBUF:
return videobuf_qbuf(ngene_queue(vopen), parg);
case VIDIOC_DQBUF:
return videobuf_dqbuf(ngene_queue(vopen), parg,
file->f_flags & O_NONBLOCK);
case VIDIOC_S_FBUF:
{
/* ngene_analog_stop_feed(chan); */
struct v4l2_framebuffer *fb = parg;
const struct ngene_format *fmt;
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
return -EPERM;
/* check args */
fmt = ngene_formats; /*format_by_fourcc(fb->fmt.pixelformat);*/
if (NULL == fmt)
return -EINVAL;
if (0 == (fmt->flags & 0x02 /*FORMAT_FLAGS_PACKED*/))
return -EINVAL;
mutex_lock(&vopen->vbuf_q.lock);
retval = -EINVAL;
if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
int maxLinesPerField;
if (fb->fmt.width >
chan->tvnorms[chan->tvnorm].swidth)
goto vopen_unlock_and_return;
maxLinesPerField = chan->tvnorms[chan->tvnorm].sheight;
if (fb->fmt.height > maxLinesPerField)
goto vopen_unlock_and_return;
}
/* ok, accept it */
chan->fbuf.base = fb->base;
chan->fbuf.fmt.width = fb->fmt.width;
chan->fbuf.fmt.height = fb->fmt.height;
if (0 != fb->fmt.bytesperline)
chan->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
else
chan->fbuf.fmt.bytesperline =
chan->fbuf.fmt.width * fmt->depth / 8;
retval = 0;
vopen->ovfmt = fmt;
chan->init.ovfmt = fmt;
vopen_unlock_and_return:
mutex_unlock(&vopen->vbuf_q.lock);
return retval;
}
case VIDIOC_ENUMOUTPUT:
return -EINVAL;
case VIDIOC_TRY_FMT:
{
struct v4l2_format *f = parg;
return ngene_try_fmt(vopen, chan, f);
}
case VIDIOC_STREAMON:
{
int res = ngene_resource(vopen);
if (!check_alloc_res(chan, vopen, res))
return -EBUSY;
ngene_analog_start_feed(chan);
return videobuf_streamon(ngene_queue(vopen));
}
case VIDIOC_STREAMOFF:
{
int res = ngene_resource(vopen);
int retval = videobuf_streamoff(ngene_queue(vopen));
ngene_analog_stop_feed(chan);
if (retval < 0)
return retval;
free_res(chan, vopen, res);
return 0;
}
case VIDIOC_OVERLAY:
return -EINVAL;
case VIDIOCGFBUF:
{
struct video_buffer *vb = parg;
memset(vb, 0, sizeof(*vb));
return 0;
}
default:
err = -EINVAL;
break;
}
return err;
}
/*
static int vid_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
return video_usercopy(inode, file, cmd, arg, vid_do_ioctl);
}
*/
static unsigned int video_fix_command(unsigned int cmd)
{
switch (cmd) {
}
return cmd;
}
static int vid_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
void *parg = (void *)arg, *pbuf = NULL;
char buf[64];
int res = -EFAULT;
cmd = video_fix_command(cmd);
if (_IOC_DIR(cmd) & _IOC_WRITE) {
parg = buf;
if (_IOC_SIZE(cmd) > sizeof(buf)) {
pbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
if (!pbuf)
return -ENOMEM;
parg = pbuf;
}
if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
goto error;
}
res = vid_do_ioctl(inode, file, cmd, parg);
if (res < 0)
goto error;
if (_IOC_DIR(cmd) & _IOC_READ)
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
res = -EFAULT;
error:
kfree(pbuf);
return res;
}
static int ngene_mmap(struct file *file, struct vm_area_struct *vma)
{
struct ngene_vopen *vopen = file->private_data;
return videobuf_mmap_mapper(ngene_queue(vopen), vma);
}
#define MAGIC_BUFFER 0x20040302
void *my_videobuf_alloc(unsigned int size)
{
struct videobuf_buffer *vb;
vb = kmalloc(size, GFP_KERNEL);
if (NULL != vb) {
memset(vb, 0, size);
videobuf_dma_init(&vb->dma);
init_waitqueue_head(&vb->done);
vb->magic = MAGIC_BUFFER;
}
return vb;
}
static ssize_t driver_read(struct file *file, char *user,
size_t count, loff_t *offset)
{
char __user *data = user;
struct ngene_channel *chan;
int retval = 0;
struct videobuf_queue *q;
struct ngene_vopen *vopen = file->private_data;
int nonblocking = file->f_flags & O_NONBLOCK;
enum v4l2_field field;
unsigned long flags;
unsigned size, nbufs, bytes;
if (!vopen)
return 0;
chan = vopen->ch;
q = &vopen->vbuf_q;
mutex_lock(&q->lock);
nbufs = 1;
size = 0;
q->ops->buf_setup(q, &nbufs, &size);
if (NULL == q->read_buf) {
/* need to capture a new frame */
retval = -ENOMEM;
q->read_buf = my_videobuf_alloc(q->msize);
if (NULL == q->read_buf)
goto done;
q->read_buf->memory = V4L2_MEMORY_USERPTR;
field = V4L2_FIELD_INTERLACED;
retval = q->ops->buf_prepare(q, q->read_buf, field);
if (0 != retval) {
kfree(q->read_buf);
q->read_buf = NULL;
goto done;
}
spin_lock_irqsave(q->irqlock, flags);
q->ops->buf_queue(q, q->read_buf);
spin_unlock_irqrestore(q->irqlock, flags);
q->read_off = 0;
}
ngene_analog_start_feed(chan);
/* wait until capture is done */
retval = videobuf_waiton(q->read_buf, nonblocking, 1);
if (0 != retval)
goto done;
videobuf_dma_sync(q, &q->read_buf->dma);
if (STATE_ERROR == q->read_buf->state) {
/* catch I/O errors */
q->ops->buf_release(q, q->read_buf);
kfree(q->read_buf);
q->read_buf = NULL;
retval = -EIO;
goto done;
}
/* copy to userspace */
bytes = count;
if (bytes > q->read_buf->size - q->read_off)
bytes = q->read_buf->size - q->read_off;
retval = -EFAULT;
if (copy_to_user(data, q->read_buf->dma.vmalloc + q->read_off, bytes))
goto done;
retval = bytes;
q->read_off += bytes;
if (q->read_off == q->read_buf->size) {
/* all data copied, cleanup */
q->ops->buf_release(q, q->read_buf);
kfree(q->read_buf);
q->read_buf = NULL;
}
done:
mutex_unlock(&q->lock);
ngene_analog_stop_feed(chan);
return retval;
}
static unsigned int ngene_poll(struct file *file, poll_table *wait)
{
struct ngene_vopen *vopen = file->private_data;
struct ngene_buffer *buf;
enum v4l2_field field;
if (check_res(vopen, RESOURCE_VIDEO)) {
/* streaming capture */
if (list_empty(&vopen->vbuf_q.stream))
return POLLERR;
buf = list_entry(vopen->vbuf_q.stream.next,
struct ngene_buffer, vb.stream);
} else {
/* read() capture */
mutex_lock(&vopen->vbuf_q.lock);
if (NULL == vopen->vbuf_q.read_buf) {
/* need to capture a new frame */
if (locked_res(vopen->ch, RESOURCE_VIDEO)) {
mutex_unlock(&vopen->vbuf_q.lock);
return POLLERR;
}
vopen->vbuf_q.read_buf =
videobuf_alloc(vopen->vbuf_q.msize);
if (NULL == vopen->vbuf_q.read_buf) {
mutex_unlock(&vopen->vbuf_q.lock);
return POLLERR;
}
vopen->vbuf_q.read_buf->memory = V4L2_MEMORY_USERPTR;
field = videobuf_next_field(&vopen->vbuf_q);
if (0 !=
vopen->vbuf_q.ops->
buf_prepare(&vopen->vbuf_q,
vopen->vbuf_q.read_buf, field)) {
mutex_unlock(&vopen->vbuf_q.lock);
return POLLERR;
}
vopen->vbuf_q.ops->buf_queue(&vopen->vbuf_q,
vopen->vbuf_q.read_buf);
vopen->vbuf_q.read_off = 0;
}
mutex_unlock(&vopen->vbuf_q.lock);
buf = (struct ngene_buffer *)vopen->vbuf_q.read_buf;
}
poll_wait(file, &buf->vb.done, wait);
if (buf->vb.state == STATE_DONE || buf->vb.state == STATE_ERROR)
return POLLIN | POLLRDNORM;
return 0;
}
static const struct file_operations ngene_fops = {
.owner = THIS_MODULE,
.read = driver_read,
.write = 0,
.open = video_open,
.release = video_close,
.ioctl = vid_ioctl,
.poll = ngene_poll,
.mmap = ngene_mmap,
};
static struct video_device ngene_cinfo = {
.name = "analog_Ngene",
.type = VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_SCALES,
.fops = &ngene_fops,
.minor = -1,
};
void ngene_v4l2_remove(struct ngene_channel *chan)
{
video_unregister_device(chan->v4l_dev);
}
int ngene_v4l2_init(struct ngene_channel *chan)
{
int ret = 0;
struct video_device *v_dev;
chan->evenbuffer = NULL;
chan->dma_on = 0;
v_dev = video_device_alloc();
*v_dev = ngene_cinfo;
/* v_dev->dev = &(chan->dev->pci_dev->dev); */
v_dev->release = video_device_release;
v_dev->minor = -1;
video_register_device(v_dev, VFL_TYPE_GRABBER, -1);
snprintf(v_dev->name, sizeof(v_dev->name), "AnalognGene%d",
v_dev->minor);
chan->v4l_dev = v_dev;
chan->minor = v_dev->minor;
printk(KERN_INFO "nGene V4L2 device video%d registered.\n",
v_dev->minor);
v_dev->dev = &chan->device;
my_video_set_drvdata(chan->v4l_dev, chan);
v4l2_prio_init(&chan->prio);
if (chan->dev->card_info->io_type[chan->number] == NGENE_IO_HDTV) {
chan->tvnorms = ngene_tvnorms_hd;
chan->tvnorm_num = 1;
} else {
chan->tvnorms = ngene_tvnorms_sd;
chan->tvnorm_num = NGENE_TVNORMS;
}
chan->tvnorm = 0;
spin_lock_init(&chan->s_lock);
init_MUTEX(&chan->reslock);
INIT_LIST_HEAD(&chan->capture);
chan->users = 0;
chan->videousers = 0;
chan->init.ov.w.width = 384;
chan->init.ov.w.height = 288;
chan->init.fmt = ngene_formats;
chan->init.width = 384;
chan->init.height = 288;
chan->tun_rdy = 0;
chan->dec_rdy = 0;
chan->tun_dec_rdy = 0;
chan->lastbufferflag = -1;
if (chan->dev->card_info->avf[chan->number])
avf4910a_attach(&chan->i2c_adapter,
chan->dev->card_info->avf[chan->number]);
return ret;
}
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