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android_kernel_xiaomi_sm8350/drivers/media/video/saa7134/saa7134-video.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

2407 lines
60 KiB
C
Raw Blame History

/*
* $Id: saa7134-video.c,v 1.28 2005/02/15 15:59:35 kraxel Exp $
*
* device driver for philips saa7134 based TV cards
* video4linux video interface
*
* (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
*
* 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/kernel.h>
#include <linux/slab.h>
#include "saa7134-reg.h"
#include "saa7134.h"
#define V4L2_I2C_CLIENTS 1
/* ------------------------------------------------------------------ */
static unsigned int video_debug = 0;
static unsigned int gbuffers = 8;
static unsigned int noninterlaced = 0;
static unsigned int gbufsize = 720*576*4;
static unsigned int gbufsize_max = 720*576*4;
module_param(video_debug, int, 0644);
MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
module_param(gbuffers, int, 0444);
MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
module_param(noninterlaced, int, 0644);
MODULE_PARM_DESC(noninterlaced,"video input is noninterlaced");
#define dprintk(fmt, arg...) if (video_debug) \
printk(KERN_DEBUG "%s/video: " fmt, dev->name , ## arg)
/* ------------------------------------------------------------------ */
/* data structs for video */
static int video_out[][9] = {
[CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
};
static struct saa7134_format formats[] = {
{
.name = "8 bpp gray",
.fourcc = V4L2_PIX_FMT_GREY,
.depth = 8,
.pm = 0x06,
},{
.name = "15 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB555,
.depth = 16,
.pm = 0x13 | 0x80,
},{
.name = "15 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB555X,
.depth = 16,
.pm = 0x13 | 0x80,
.bswap = 1,
},{
.name = "16 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB565,
.depth = 16,
.pm = 0x10 | 0x80,
},{
.name = "16 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB565X,
.depth = 16,
.pm = 0x10 | 0x80,
.bswap = 1,
},{
.name = "24 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR24,
.depth = 24,
.pm = 0x11,
},{
.name = "24 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB24,
.depth = 24,
.pm = 0x11,
.bswap = 1,
},{
.name = "32 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR32,
.depth = 32,
.pm = 0x12,
},{
.name = "32 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB32,
.depth = 32,
.pm = 0x12,
.bswap = 1,
.wswap = 1,
},{
.name = "4:2:2 packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.depth = 16,
.pm = 0x00,
.bswap = 1,
.yuv = 1,
},{
.name = "4:2:2 packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
.pm = 0x00,
.yuv = 1,
},{
.name = "4:2:2 planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV422P,
.depth = 16,
.pm = 0x09,
.yuv = 1,
.planar = 1,
.hshift = 1,
.vshift = 0,
},{
.name = "4:2:0 planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV420,
.depth = 12,
.pm = 0x0a,
.yuv = 1,
.planar = 1,
.hshift = 1,
.vshift = 1,
},{
.name = "4:2:0 planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YVU420,
.depth = 12,
.pm = 0x0a,
.yuv = 1,
.planar = 1,
.uvswap = 1,
.hshift = 1,
.vshift = 1,
}
};
#define FORMATS ARRAY_SIZE(formats)
#define NORM_625_50 \
.h_start = 0, \
.h_stop = 719, \
.video_v_start = 24, \
.video_v_stop = 311, \
.vbi_v_start = 7, \
.vbi_v_stop = 22, \
.src_timing = 4
#define NORM_525_60 \
.h_start = 0, \
.h_stop = 703, \
.video_v_start = 22, \
.video_v_stop = 22+239, \
.vbi_v_start = 10, /* FIXME */ \
.vbi_v_stop = 21, /* FIXME */ \
.src_timing = 1
static struct saa7134_tvnorm tvnorms[] = {
{
.name = "PAL", /* autodetect */
.id = V4L2_STD_PAL,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
},{
.name = "PAL-BG",
.id = V4L2_STD_PAL_BG,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
},{
.name = "PAL-I",
.id = V4L2_STD_PAL_I,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
},{
.name = "PAL-DK",
.id = V4L2_STD_PAL_DK,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
},{
.name = "NTSC",
.id = V4L2_STD_NTSC,
NORM_525_60,
.sync_control = 0x59,
.luma_control = 0x40,
.chroma_ctrl1 = 0x89,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
},{
.name = "SECAM",
.id = V4L2_STD_SECAM,
NORM_625_50,
.sync_control = 0x18, /* old: 0x58, */
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
},{
.name = "PAL-M",
.id = V4L2_STD_PAL_M,
NORM_525_60,
.sync_control = 0x59,
.luma_control = 0x40,
.chroma_ctrl1 = 0xb9,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
},{
.name = "PAL-Nc",
.id = V4L2_STD_PAL_Nc,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0xa1,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
},{
.name = "PAL-60",
.id = V4L2_STD_PAL_60,
.h_start = 0,
.h_stop = 719,
.video_v_start = 22,
.video_v_stop = 22+239,
.vbi_v_start = 10, /* FIXME */
.vbi_v_stop = 21, /* FIXME */
.src_timing = 1,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
}
};
#define TVNORMS ARRAY_SIZE(tvnorms)
#define V4L2_CID_PRIVATE_INVERT (V4L2_CID_PRIVATE_BASE + 0)
#define V4L2_CID_PRIVATE_Y_ODD (V4L2_CID_PRIVATE_BASE + 1)
#define V4L2_CID_PRIVATE_Y_EVEN (V4L2_CID_PRIVATE_BASE + 2)
#define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 3)
#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 4)
static const struct v4l2_queryctrl no_ctrl = {
.name = "42",
.flags = V4L2_CTRL_FLAG_DISABLED,
};
static const struct v4l2_queryctrl video_ctrls[] = {
/* --- video --- */
{
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 128,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.minimum = 0,
.maximum = 127,
.step = 1,
.default_value = 68,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.minimum = 0,
.maximum = 127,
.step = 1,
.default_value = 64,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_HUE,
.name = "Hue",
.minimum = -128,
.maximum = 127,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_VFLIP,
.name = "vertical flip",
.minimum = 0,
.maximum = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
/* --- audio --- */
{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},{
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = -15,
.maximum = 15,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},
/* --- private --- */
{
.id = V4L2_CID_PRIVATE_INVERT,
.name = "Invert",
.minimum = 0,
.maximum = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},{
.id = V4L2_CID_PRIVATE_Y_ODD,
.name = "y offset odd field",
.minimum = 0,
.maximum = 128,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_PRIVATE_Y_EVEN,
.name = "y offset even field",
.minimum = 0,
.maximum = 128,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_PRIVATE_AUTOMUTE,
.name = "automute",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}
};
static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
static const struct v4l2_queryctrl* ctrl_by_id(unsigned int id)
{
unsigned int i;
for (i = 0; i < CTRLS; i++)
if (video_ctrls[i].id == id)
return video_ctrls+i;
return NULL;
}
static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
{
unsigned int i;
for (i = 0; i < FORMATS; i++)
if (formats[i].fourcc == fourcc)
return formats+i;
return NULL;
}
/* ----------------------------------------------------------------------- */
/* resource management */
static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bit)
{
if (fh->resources & bit)
/* have it already allocated */
return 1;
/* is it free? */
down(&dev->lock);
if (dev->resources & bit) {
/* no, someone else uses it */
up(&dev->lock);
return 0;
}
/* it's free, grab it */
fh->resources |= bit;
dev->resources |= bit;
dprintk("res: get %d\n",bit);
up(&dev->lock);
return 1;
}
static
int res_check(struct saa7134_fh *fh, unsigned int bit)
{
return (fh->resources & bit);
}
static
int res_locked(struct saa7134_dev *dev, unsigned int bit)
{
return (dev->resources & bit);
}
static
void res_free(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bits)
{
if ((fh->resources & bits) != bits)
BUG();
down(&dev->lock);
fh->resources &= ~bits;
dev->resources &= ~bits;
dprintk("res: put %d\n",bits);
up(&dev->lock);
}
/* ------------------------------------------------------------------ */
static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
{
int luma_control,sync_control,mux;
dprintk("set tv norm = %s\n",norm->name);
dev->tvnorm = norm;
mux = card_in(dev,dev->ctl_input).vmux;
luma_control = norm->luma_control;
sync_control = norm->sync_control;
if (mux > 5)
luma_control |= 0x80; /* svideo */
if (noninterlaced || dev->nosignal)
sync_control |= 0x20;
/* setup cropping */
dev->crop_bounds.left = norm->h_start;
dev->crop_defrect.left = norm->h_start;
dev->crop_bounds.width = norm->h_stop - norm->h_start +1;
dev->crop_defrect.width = norm->h_stop - norm->h_start +1;
dev->crop_bounds.top = (norm->vbi_v_stop+1)*2;
dev->crop_defrect.top = norm->video_v_start*2;
dev->crop_bounds.height = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
- dev->crop_bounds.top;
dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
dev->crop_current = dev->crop_defrect;
/* setup video decoder */
saa_writeb(SAA7134_INCR_DELAY, 0x08);
saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
saa_writeb(SAA7134_ANALOG_IN_CTRL2, 0x00);
saa_writeb(SAA7134_ANALOG_IN_CTRL3, 0x90);
saa_writeb(SAA7134_ANALOG_IN_CTRL4, 0x90);
saa_writeb(SAA7134_HSYNC_START, 0xeb);
saa_writeb(SAA7134_HSYNC_STOP, 0xe0);
saa_writeb(SAA7134_SOURCE_TIMING1, norm->src_timing);
saa_writeb(SAA7134_SYNC_CTRL, sync_control);
saa_writeb(SAA7134_LUMA_CTRL, luma_control);
saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
saa_writeb(SAA7134_DEC_LUMA_CONTRAST, dev->ctl_contrast);
saa_writeb(SAA7134_DEC_CHROMA_SATURATION, dev->ctl_saturation);
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
saa_writeb(SAA7134_CHROMA_CTRL1, norm->chroma_ctrl1);
saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
saa_writeb(SAA7134_MODE_DELAY_CTRL, 0x00);
saa_writeb(SAA7134_ANALOG_ADC, 0x01);
saa_writeb(SAA7134_VGATE_START, 0x11);
saa_writeb(SAA7134_VGATE_STOP, 0xfe);
saa_writeb(SAA7134_MISC_VGATE_MSB, norm->vgate_misc);
saa_writeb(SAA7134_RAW_DATA_GAIN, 0x40);
saa_writeb(SAA7134_RAW_DATA_OFFSET, 0x80);
#ifdef V4L2_I2C_CLIENTS
saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
#else
{
/* pass down info to the i2c chips (v4l1) */
struct video_channel c;
memset(&c,0,sizeof(c));
c.channel = dev->ctl_input;
c.norm = VIDEO_MODE_PAL;
if (norm->id & V4L2_STD_NTSC)
c.norm = VIDEO_MODE_NTSC;
if (norm->id & V4L2_STD_SECAM)
c.norm = VIDEO_MODE_SECAM;
saa7134_i2c_call_clients(dev,VIDIOCSCHAN,&c);
}
#endif
}
static void video_mux(struct saa7134_dev *dev, int input)
{
dprintk("video input = %d [%s]\n",input,card_in(dev,input).name);
dev->ctl_input = input;
set_tvnorm(dev,dev->tvnorm);
saa7134_tvaudio_setinput(dev,&card_in(dev,input));
}
static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
{
static const struct {
int xpsc;
int xacl;
int xc2_1;
int xdcg;
int vpfy;
} vals[] = {
/* XPSC XACL XC2_1 XDCG VPFY */
{ 1, 0, 0, 0, 0 },
{ 2, 2, 1, 2, 2 },
{ 3, 4, 1, 3, 2 },
{ 4, 8, 1, 4, 2 },
{ 5, 8, 1, 4, 2 },
{ 6, 8, 1, 4, 3 },
{ 7, 8, 1, 4, 3 },
{ 8, 15, 0, 4, 3 },
{ 9, 15, 0, 4, 3 },
{ 10, 16, 1, 5, 3 },
};
static const int count = ARRAY_SIZE(vals);
int i;
for (i = 0; i < count; i++)
if (vals[i].xpsc == prescale)
break;
if (i == count)
return;
saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
saa_writeb(SAA7134_LEVEL_CTRL(task),
(vals[i].xc2_1 << 3) | (vals[i].xdcg));
saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
(vals[i].vpfy << 2) | vals[i].vpfy);
}
static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
{
int val,mirror;
saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale & 0xff);
saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
if (yscale < 2048) {
/* LPI */
dprintk("yscale LPI yscale=%d\n",yscale);
saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
} else {
/* ACM */
val = 0x40 * 1024 / yscale;
dprintk("yscale ACM yscale=%d val=0x%x\n",yscale,val);
saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
}
saa_writeb(SAA7134_LUMA_BRIGHT(task), 0x80);
}
static void set_size(struct saa7134_dev *dev, int task,
int width, int height, int interlace)
{
int prescale,xscale,yscale,y_even,y_odd;
int h_start, h_stop, v_start, v_stop;
int div = interlace ? 2 : 1;
/* setup video scaler */
h_start = dev->crop_current.left;
v_start = dev->crop_current.top/2;
h_stop = (dev->crop_current.left + dev->crop_current.width -1);
v_stop = (dev->crop_current.top + dev->crop_current.height -1)/2;
saa_writeb(SAA7134_VIDEO_H_START1(task), h_start & 0xff);
saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
saa_writeb(SAA7134_VIDEO_H_STOP1(task), h_stop & 0xff);
saa_writeb(SAA7134_VIDEO_H_STOP2(task), h_stop >> 8);
saa_writeb(SAA7134_VIDEO_V_START1(task), v_start & 0xff);
saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
saa_writeb(SAA7134_VIDEO_V_STOP1(task), v_stop & 0xff);
saa_writeb(SAA7134_VIDEO_V_STOP2(task), v_stop >> 8);
prescale = dev->crop_current.width / width;
if (0 == prescale)
prescale = 1;
xscale = 1024 * dev->crop_current.width / prescale / width;
yscale = 512 * div * dev->crop_current.height / height;
dprintk("prescale=%d xscale=%d yscale=%d\n",prescale,xscale,yscale);
set_h_prescale(dev,task,prescale);
saa_writeb(SAA7134_H_SCALE_INC1(task), xscale & 0xff);
saa_writeb(SAA7134_H_SCALE_INC2(task), xscale >> 8);
set_v_scale(dev,task,yscale);
saa_writeb(SAA7134_VIDEO_PIXELS1(task), width & 0xff);
saa_writeb(SAA7134_VIDEO_PIXELS2(task), width >> 8);
saa_writeb(SAA7134_VIDEO_LINES1(task), height/div & 0xff);
saa_writeb(SAA7134_VIDEO_LINES2(task), height/div >> 8);
/* deinterlace y offsets */
y_odd = dev->ctl_y_odd;
y_even = dev->ctl_y_even;
saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
}
/* ------------------------------------------------------------------ */
struct cliplist {
__u16 position;
__u8 enable;
__u8 disable;
};
static void sort_cliplist(struct cliplist *cl, int entries)
{
struct cliplist swap;
int i,j,n;
for (i = entries-2; i >= 0; i--) {
for (n = 0, j = 0; j <= i; j++) {
if (cl[j].position > cl[j+1].position) {
swap = cl[j];
cl[j] = cl[j+1];
cl[j+1] = swap;
n++;
}
}
if (0 == n)
break;
}
}
static void set_cliplist(struct saa7134_dev *dev, int reg,
struct cliplist *cl, int entries, char *name)
{
__u8 winbits = 0;
int i;
for (i = 0; i < entries; i++) {
winbits |= cl[i].enable;
winbits &= ~cl[i].disable;
if (i < 15 && cl[i].position == cl[i+1].position)
continue;
saa_writeb(reg + 0, winbits);
saa_writeb(reg + 2, cl[i].position & 0xff);
saa_writeb(reg + 3, cl[i].position >> 8);
dprintk("clip: %s winbits=%02x pos=%d\n",
name,winbits,cl[i].position);
reg += 8;
}
for (; reg < 0x400; reg += 8) {
saa_writeb(reg+ 0, 0);
saa_writeb(reg + 1, 0);
saa_writeb(reg + 2, 0);
saa_writeb(reg + 3, 0);
}
}
static int clip_range(int val)
{
if (val < 0)
val = 0;
return val;
}
static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
int nclips, int interlace)
{
struct cliplist col[16], row[16];
int cols, rows, i;
int div = interlace ? 2 : 1;
memset(col,0,sizeof(col)); cols = 0;
memset(row,0,sizeof(row)); rows = 0;
for (i = 0; i < nclips && i < 8; i++) {
col[cols].position = clip_range(clips[i].c.left);
col[cols].enable = (1 << i);
cols++;
col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
col[cols].disable = (1 << i);
cols++;
row[rows].position = clip_range(clips[i].c.top / div);
row[rows].enable = (1 << i);
rows++;
row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
/ div);
row[rows].disable = (1 << i);
rows++;
}
sort_cliplist(col,cols);
sort_cliplist(row,rows);
set_cliplist(dev,0x380,col,cols,"cols");
set_cliplist(dev,0x384,row,rows,"rows");
return 0;
}
static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win)
{
enum v4l2_field field;
int maxw, maxh;
if (NULL == dev->ovbuf.base)
return -EINVAL;
if (NULL == dev->ovfmt)
return -EINVAL;
if (win->w.width < 48 || win->w.height < 32)
return -EINVAL;
if (win->clipcount > 2048)
return -EINVAL;
field = win->field;
maxw = dev->crop_current.width;
maxh = dev->crop_current.height;
if (V4L2_FIELD_ANY == field) {
field = (win->w.height > maxh/2)
? V4L2_FIELD_INTERLACED
: V4L2_FIELD_TOP;
}
switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
maxh = maxh / 2;
break;
case V4L2_FIELD_INTERLACED:
break;
default:
return -EINVAL;
}
win->field = field;
if (win->w.width > maxw)
win->w.width = maxw;
if (win->w.height > maxh)
win->w.height = maxh;
return 0;
}
static int start_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
{
unsigned long base,control,bpl;
int err;
err = verify_preview(dev,&fh->win);
if (0 != err)
return err;
dev->ovfield = fh->win.field;
dprintk("start_preview %dx%d+%d+%d %s field=%s\n",
fh->win.w.width,fh->win.w.height,
fh->win.w.left,fh->win.w.top,
dev->ovfmt->name,v4l2_field_names[dev->ovfield]);
/* setup window + clipping */
set_size(dev,TASK_B,fh->win.w.width,fh->win.w.height,
V4L2_FIELD_HAS_BOTH(dev->ovfield));
setup_clipping(dev,fh->clips,fh->nclips,
V4L2_FIELD_HAS_BOTH(dev->ovfield));
if (dev->ovfmt->yuv)
saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
else
saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
/* dma: setup channel 1 (= Video Task B) */
base = (unsigned long)dev->ovbuf.base;
base += dev->ovbuf.fmt.bytesperline * fh->win.w.top;
base += dev->ovfmt->depth/8 * fh->win.w.left;
bpl = dev->ovbuf.fmt.bytesperline;
control = SAA7134_RS_CONTROL_BURST_16;
if (dev->ovfmt->bswap)
control |= SAA7134_RS_CONTROL_BSWAP;
if (dev->ovfmt->wswap)
control |= SAA7134_RS_CONTROL_WSWAP;
if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
saa_writel(SAA7134_RS_BA1(1),base);
saa_writel(SAA7134_RS_BA2(1),base+bpl);
saa_writel(SAA7134_RS_PITCH(1),bpl*2);
saa_writel(SAA7134_RS_CONTROL(1),control);
} else {
saa_writel(SAA7134_RS_BA1(1),base);
saa_writel(SAA7134_RS_BA2(1),base);
saa_writel(SAA7134_RS_PITCH(1),bpl);
saa_writel(SAA7134_RS_CONTROL(1),control);
}
/* start dma */
dev->ovenable = 1;
saa7134_set_dmabits(dev);
return 0;
}
static int stop_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
{
dev->ovenable = 0;
saa7134_set_dmabits(dev);
return 0;
}
/* ------------------------------------------------------------------ */
static int buffer_activate(struct saa7134_dev *dev,
struct saa7134_buf *buf,
struct saa7134_buf *next)
{
unsigned long base,control,bpl;
unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
dprintk("buffer_activate buf=%p\n",buf);
buf->vb.state = STATE_ACTIVE;
buf->top_seen = 0;
set_size(dev,TASK_A,buf->vb.width,buf->vb.height,
V4L2_FIELD_HAS_BOTH(buf->vb.field));
if (buf->fmt->yuv)
saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
else
saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
saa_writeb(SAA7134_OFMT_VIDEO_A, buf->fmt->pm);
/* DMA: setup channel 0 (= Video Task A0) */
base = saa7134_buffer_base(buf);
if (buf->fmt->planar)
bpl = buf->vb.width;
else
bpl = (buf->vb.width * buf->fmt->depth) / 8;
control = SAA7134_RS_CONTROL_BURST_16 |
SAA7134_RS_CONTROL_ME |
(buf->pt->dma >> 12);
if (buf->fmt->bswap)
control |= SAA7134_RS_CONTROL_BSWAP;
if (buf->fmt->wswap)
control |= SAA7134_RS_CONTROL_WSWAP;
if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
/* interlaced */
saa_writel(SAA7134_RS_BA1(0),base);
saa_writel(SAA7134_RS_BA2(0),base+bpl);
saa_writel(SAA7134_RS_PITCH(0),bpl*2);
} else {
/* non-interlaced */
saa_writel(SAA7134_RS_BA1(0),base);
saa_writel(SAA7134_RS_BA2(0),base);
saa_writel(SAA7134_RS_PITCH(0),bpl);
}
saa_writel(SAA7134_RS_CONTROL(0),control);
if (buf->fmt->planar) {
/* DMA: setup channel 4+5 (= planar task A) */
bpl_uv = bpl >> buf->fmt->hshift;
lines_uv = buf->vb.height >> buf->fmt->vshift;
base2 = base + bpl * buf->vb.height;
base3 = base2 + bpl_uv * lines_uv;
if (buf->fmt->uvswap)
tmp = base2, base2 = base3, base3 = tmp;
dprintk("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
bpl_uv,lines_uv,base2,base3);
if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
/* interlaced */
saa_writel(SAA7134_RS_BA1(4),base2);
saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
saa_writel(SAA7134_RS_BA1(5),base3);
saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
} else {
/* non-interlaced */
saa_writel(SAA7134_RS_BA1(4),base2);
saa_writel(SAA7134_RS_BA2(4),base2);
saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
saa_writel(SAA7134_RS_BA1(5),base3);
saa_writel(SAA7134_RS_BA2(5),base3);
saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
}
saa_writel(SAA7134_RS_CONTROL(4),control);
saa_writel(SAA7134_RS_CONTROL(5),control);
}
/* start DMA */
saa7134_set_dmabits(dev);
mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
return 0;
}
static int buffer_prepare(struct videobuf_queue *q,
struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct saa7134_fh *fh = q->priv_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
unsigned int size;
int err;
/* sanity checks */
if (NULL == fh->fmt)
return -EINVAL;
if (fh->width < 48 ||
fh->height < 32 ||
fh->width/4 > dev->crop_current.width ||
fh->height/4 > dev->crop_current.height ||
fh->width > dev->crop_bounds.width ||
fh->height > dev->crop_bounds.height)
return -EINVAL;
size = (fh->width * fh->height * fh->fmt->depth) >> 3;
if (0 != buf->vb.baddr && buf->vb.bsize < size)
return -EINVAL;
dprintk("buffer_prepare [%d,size=%dx%d,bytes=%d,fields=%s,%s]\n",
vb->i,fh->width,fh->height,size,v4l2_field_names[field],
fh->fmt->name);
if (buf->vb.width != fh->width ||
buf->vb.height != fh->height ||
buf->vb.size != size ||
buf->vb.field != field ||
buf->fmt != fh->fmt) {
saa7134_dma_free(dev,buf);
}
if (STATE_NEEDS_INIT == buf->vb.state) {
buf->vb.width = fh->width;
buf->vb.height = fh->height;
buf->vb.size = size;
buf->vb.field = field;
buf->fmt = fh->fmt;
buf->pt = &fh->pt_cap;
err = videobuf_iolock(dev->pci,&buf->vb,&dev->ovbuf);
if (err)
goto oops;
err = saa7134_pgtable_build(dev->pci,buf->pt,
buf->vb.dma.sglist,
buf->vb.dma.sglen,
saa7134_buffer_startpage(buf));
if (err)
goto oops;
}
buf->vb.state = STATE_PREPARED;
buf->activate = buffer_activate;
return 0;
oops:
saa7134_dma_free(dev,buf);
return err;
}
static int
buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
{
struct saa7134_fh *fh = q->priv_data;
*size = fh->fmt->depth * fh->width * fh->height >> 3;
if (0 == *count)
*count = gbuffers;
*count = saa7134_buffer_count(*size,*count);
return 0;
}
static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct saa7134_fh *fh = q->priv_data;
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
saa7134_buffer_queue(fh->dev,&fh->dev->video_q,buf);
}
static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct saa7134_fh *fh = q->priv_data;
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
saa7134_dma_free(fh->dev,buf);
}
static struct videobuf_queue_ops video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
/* ------------------------------------------------------------------ */
static int get_control(struct saa7134_dev *dev, struct v4l2_control *c)
{
const struct v4l2_queryctrl* ctrl;
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl)
return -EINVAL;
switch (c->id) {
case V4L2_CID_BRIGHTNESS:
c->value = dev->ctl_bright;
break;
case V4L2_CID_HUE:
c->value = dev->ctl_hue;
break;
case V4L2_CID_CONTRAST:
c->value = dev->ctl_contrast;
break;
case V4L2_CID_SATURATION:
c->value = dev->ctl_saturation;
break;
case V4L2_CID_AUDIO_MUTE:
c->value = dev->ctl_mute;
break;
case V4L2_CID_AUDIO_VOLUME:
c->value = dev->ctl_volume;
break;
case V4L2_CID_PRIVATE_INVERT:
c->value = dev->ctl_invert;
break;
case V4L2_CID_VFLIP:
c->value = dev->ctl_mirror;
break;
case V4L2_CID_PRIVATE_Y_EVEN:
c->value = dev->ctl_y_even;
break;
case V4L2_CID_PRIVATE_Y_ODD:
c->value = dev->ctl_y_odd;
break;
case V4L2_CID_PRIVATE_AUTOMUTE:
c->value = dev->ctl_automute;
break;
default:
return -EINVAL;
}
return 0;
}
static int set_control(struct saa7134_dev *dev, struct saa7134_fh *fh,
struct v4l2_control *c)
{
const struct v4l2_queryctrl* ctrl;
unsigned long flags;
int restart_overlay = 0;
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl)
return -EINVAL;
dprintk("set_control name=%s val=%d\n",ctrl->name,c->value);
switch (ctrl->type) {
case V4L2_CTRL_TYPE_BOOLEAN:
case V4L2_CTRL_TYPE_MENU:
case V4L2_CTRL_TYPE_INTEGER:
if (c->value < ctrl->minimum)
c->value = ctrl->minimum;
if (c->value > ctrl->maximum)
c->value = ctrl->maximum;
break;
default:
/* nothing */;
};
switch (c->id) {
case V4L2_CID_BRIGHTNESS:
dev->ctl_bright = c->value;
saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
break;
case V4L2_CID_HUE:
dev->ctl_hue = c->value;
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
break;
case V4L2_CID_CONTRAST:
dev->ctl_contrast = c->value;
saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
break;
case V4L2_CID_SATURATION:
dev->ctl_saturation = c->value;
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
break;
case V4L2_CID_AUDIO_MUTE:
dev->ctl_mute = c->value;
saa7134_tvaudio_setmute(dev);
break;
case V4L2_CID_AUDIO_VOLUME:
dev->ctl_volume = c->value;
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
break;
case V4L2_CID_PRIVATE_INVERT:
dev->ctl_invert = c->value;
saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
break;
case V4L2_CID_VFLIP:
dev->ctl_mirror = c->value;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_Y_EVEN:
dev->ctl_y_even = c->value;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_Y_ODD:
dev->ctl_y_odd = c->value;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_AUTOMUTE:
dev->ctl_automute = c->value;
if (dev->tda9887_conf) {
if (dev->ctl_automute)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
else
dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
saa7134_i2c_call_clients(dev, TDA9887_SET_CONFIG,
&dev->tda9887_conf);
}
break;
default:
return -EINVAL;
}
if (restart_overlay && fh && res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
start_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
}
return 0;
}
/* ------------------------------------------------------------------ */
static struct videobuf_queue* saa7134_queue(struct saa7134_fh *fh)
{
struct videobuf_queue* q = NULL;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
q = &fh->cap;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
q = &fh->vbi;
break;
default:
BUG();
}
return q;
}
static int saa7134_resource(struct saa7134_fh *fh)
{
int res = 0;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
res = RESOURCE_VIDEO;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
res = RESOURCE_VBI;
break;
default:
BUG();
}
return res;
}
static int video_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct saa7134_dev *h,*dev = NULL;
struct saa7134_fh *fh;
struct list_head *list;
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
int radio = 0;
list_for_each(list,&saa7134_devlist) {
h = list_entry(list, struct saa7134_dev, devlist);
if (h->video_dev && (h->video_dev->minor == minor))
dev = h;
if (h->radio_dev && (h->radio_dev->minor == minor)) {
radio = 1;
dev = h;
}
if (h->vbi_dev && (h->vbi_dev->minor == minor)) {
type = V4L2_BUF_TYPE_VBI_CAPTURE;
dev = h;
}
}
if (NULL == dev)
return -ENODEV;
dprintk("open minor=%d radio=%d type=%s\n",minor,radio,
v4l2_type_names[type]);
/* allocate + initialize per filehandle data */
fh = kmalloc(sizeof(*fh),GFP_KERNEL);
if (NULL == fh)
return -ENOMEM;
memset(fh,0,sizeof(*fh));
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
fh->type = type;
fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
fh->width = 720;
fh->height = 576;
v4l2_prio_open(&dev->prio,&fh->prio);
videobuf_queue_init(&fh->cap, &video_qops,
dev->pci, &dev->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct saa7134_buf),
fh);
videobuf_queue_init(&fh->vbi, &saa7134_vbi_qops,
dev->pci, &dev->slock,
V4L2_BUF_TYPE_VBI_CAPTURE,
V4L2_FIELD_SEQ_TB,
sizeof(struct saa7134_buf),
fh);
saa7134_pgtable_alloc(dev->pci,&fh->pt_cap);
saa7134_pgtable_alloc(dev->pci,&fh->pt_vbi);
if (fh->radio) {
/* switch to radio mode */
saa7134_tvaudio_setinput(dev,&card(dev).radio);
saa7134_i2c_call_clients(dev,AUDC_SET_RADIO,NULL);
} else {
/* switch to video/vbi mode */
video_mux(dev,dev->ctl_input);
}
return 0;
}
static ssize_t
video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
struct saa7134_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(saa7134_queue(fh),
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(saa7134_queue(fh),
data, count, ppos, 1,
file->f_flags & O_NONBLOCK);
break;
default:
BUG();
return 0;
}
}
static unsigned int
video_poll(struct file *file, struct poll_table_struct *wait)
{
struct saa7134_fh *fh = file->private_data;
struct videobuf_buffer *buf = NULL;
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
return videobuf_poll_stream(file, &fh->vbi, wait);
if (res_check(fh,RESOURCE_VIDEO)) {
if (!list_empty(&fh->cap.stream))
buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
} else {
down(&fh->cap.lock);
if (UNSET == fh->cap.read_off) {
/* need to capture a new frame */
if (res_locked(fh->dev,RESOURCE_VIDEO)) {
up(&fh->cap.lock);
return POLLERR;
}
if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
up(&fh->cap.lock);
return POLLERR;
}
fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
fh->cap.read_off = 0;
}
up(&fh->cap.lock);
buf = fh->cap.read_buf;
}
if (!buf)
return POLLERR;
poll_wait(file, &buf->done, wait);
if (buf->state == STATE_DONE ||
buf->state == STATE_ERROR)
return POLLIN|POLLRDNORM;
return 0;
}
static int video_release(struct inode *inode, struct file *file)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
unsigned long flags;
/* turn off overlay */
if (res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
res_free(dev,fh,RESOURCE_OVERLAY);
}
/* stop video capture */
if (res_check(fh, RESOURCE_VIDEO)) {
videobuf_streamoff(&fh->cap);
res_free(dev,fh,RESOURCE_VIDEO);
}
if (fh->cap.read_buf) {
buffer_release(&fh->cap,fh->cap.read_buf);
kfree(fh->cap.read_buf);
}
/* stop vbi capture */
if (res_check(fh, RESOURCE_VBI)) {
if (fh->vbi.streaming)
videobuf_streamoff(&fh->vbi);
if (fh->vbi.reading)
videobuf_read_stop(&fh->vbi);
res_free(dev,fh,RESOURCE_VBI);
}
/* free stuff */
videobuf_mmap_free(&fh->cap);
videobuf_mmap_free(&fh->vbi);
saa7134_pgtable_free(dev->pci,&fh->pt_cap);
saa7134_pgtable_free(dev->pci,&fh->pt_vbi);
v4l2_prio_close(&dev->prio,&fh->prio);
file->private_data = NULL;
kfree(fh);
return 0;
}
static int
video_mmap(struct file *file, struct vm_area_struct * vma)
{
struct saa7134_fh *fh = file->private_data;
return videobuf_mmap_mapper(saa7134_queue(fh), vma);
}
/* ------------------------------------------------------------------ */
static void saa7134_vbi_fmt(struct saa7134_dev *dev, struct v4l2_format *f)
{
struct saa7134_tvnorm *norm = dev->tvnorm;
f->fmt.vbi.sampling_rate = 6750000 * 4;
f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
f->fmt.vbi.offset = 64 * 4;
f->fmt.vbi.start[0] = norm->vbi_v_start;
f->fmt.vbi.count[0] = norm->vbi_v_stop - norm->vbi_v_start +1;
f->fmt.vbi.start[1] = norm->video_v_stop + norm->vbi_v_start +1;
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
#if 0
if (V4L2_STD_PAL == norm->id) {
/* FIXME */
f->fmt.vbi.start[0] += 3;
f->fmt.vbi.start[1] += 3*2;
}
#endif
}
static int saa7134_g_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
struct v4l2_format *f)
{
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
f->fmt.pix.width = fh->width;
f->fmt.pix.height = fh->height;
f->fmt.pix.field = fh->cap.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;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
f->fmt.win = fh->win;
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
saa7134_vbi_fmt(dev,f);
return 0;
default:
return -EINVAL;
}
}
static int saa7134_try_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
struct v4l2_format *f)
{
int err;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
{
struct saa7134_format *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 = min(dev->crop_current.width*4, dev->crop_bounds.width);
maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
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.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:
err = verify_preview(dev,&f->fmt.win);
if (0 != err)
return err;
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
saa7134_vbi_fmt(dev,f);
return 0;
default:
return -EINVAL;
}
}
static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
struct v4l2_format *f)
{
unsigned long flags;
int err;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
err = saa7134_try_fmt(dev,fh,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->cap.field = f->fmt.pix.field;
return 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
err = verify_preview(dev,&f->fmt.win);
if (0 != err)
return err;
down(&dev->lock);
fh->win = f->fmt.win;
fh->nclips = f->fmt.win.clipcount;
if (fh->nclips > 8)
fh->nclips = 8;
if (copy_from_user(fh->clips,f->fmt.win.clips,
sizeof(struct v4l2_clip)*fh->nclips)) {
up(&dev->lock);
return -EFAULT;
}
if (res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
start_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
}
up(&dev->lock);
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
saa7134_vbi_fmt(dev,f);
return 0;
default:
return -EINVAL;
}
}
int saa7134_common_ioctl(struct saa7134_dev *dev,
unsigned int cmd, void *arg)
{
int err;
switch (cmd) {
case VIDIOC_QUERYCTRL:
{
const struct v4l2_queryctrl *ctrl;
struct v4l2_queryctrl *c = arg;
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;
ctrl = ctrl_by_id(c->id);
*c = (NULL != ctrl) ? *ctrl : no_ctrl;
return 0;
}
case VIDIOC_G_CTRL:
return get_control(dev,arg);
case VIDIOC_S_CTRL:
{
down(&dev->lock);
err = set_control(dev,NULL,arg);
up(&dev->lock);
return err;
}
/* --- input switching --------------------------------------- */
case VIDIOC_ENUMINPUT:
{
struct v4l2_input *i = arg;
unsigned int n;
n = i->index;
if (n >= SAA7134_INPUT_MAX)
return -EINVAL;
if (NULL == card_in(dev,i->index).name)
return -EINVAL;
memset(i,0,sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name,card_in(dev,n).name);
if (card_in(dev,n).tv)
i->type = V4L2_INPUT_TYPE_TUNER;
i->audioset = 1;
if (n == dev->ctl_input) {
int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
if (0 != (v1 & 0x40))
i->status |= V4L2_IN_ST_NO_H_LOCK;
if (0 != (v2 & 0x40))
i->status |= V4L2_IN_ST_NO_SYNC;
if (0 != (v2 & 0x0e))
i->status |= V4L2_IN_ST_MACROVISION;
}
for (n = 0; n < TVNORMS; n++)
i->std |= tvnorms[n].id;
return 0;
}
case VIDIOC_G_INPUT:
{
int *i = arg;
*i = dev->ctl_input;
return 0;
}
case VIDIOC_S_INPUT:
{
int *i = arg;
if (*i < 0 || *i >= SAA7134_INPUT_MAX)
return -EINVAL;
if (NULL == card_in(dev,*i).name)
return -EINVAL;
down(&dev->lock);
video_mux(dev,*i);
up(&dev->lock);
return 0;
}
}
return 0;
}
EXPORT_SYMBOL(saa7134_common_ioctl);
/*
* This function is _not_ called directly, but from
* video_generic_ioctl (and maybe others). userspace
* copying is done already, arg is a kernel pointer.
*/
static int video_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
unsigned long flags;
int err;
if (video_debug > 1)
saa7134_print_ioctl(dev->name,cmd);
switch (cmd) {
case VIDIOC_S_CTRL:
case VIDIOC_S_STD:
case VIDIOC_S_INPUT:
case VIDIOC_S_TUNER:
case VIDIOC_S_FREQUENCY:
err = v4l2_prio_check(&dev->prio,&fh->prio);
if (0 != err)
return err;
}
switch (cmd) {
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *cap = arg;
memset(cap,0,sizeof(*cap));
strcpy(cap->driver, "saa7134");
strlcpy(cap->card, saa7134_boards[dev->board].name,
sizeof(cap->card));
sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
cap->version = SAA7134_VERSION_CODE;
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VIDEO_OVERLAY |
V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_TUNER |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING;
return 0;
}
/* --- tv standards ------------------------------------------ */
case VIDIOC_ENUMSTD:
{
struct v4l2_standard *e = arg;
unsigned int i;
i = e->index;
if (i >= TVNORMS)
return -EINVAL;
err = v4l2_video_std_construct(e, tvnorms[e->index].id,
tvnorms[e->index].name);
e->index = i;
if (err < 0)
return err;
return 0;
}
case VIDIOC_G_STD:
{
v4l2_std_id *id = arg;
*id = dev->tvnorm->id;
return 0;
}
case VIDIOC_S_STD:
{
v4l2_std_id *id = arg;
unsigned int i;
for (i = 0; i < TVNORMS; i++)
if (*id == tvnorms[i].id)
break;
if (i == TVNORMS)
for (i = 0; i < TVNORMS; i++)
if (*id & tvnorms[i].id)
break;
if (i == TVNORMS)
return -EINVAL;
down(&dev->lock);
if (res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
set_tvnorm(dev,&tvnorms[i]);
start_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
} else
set_tvnorm(dev,&tvnorms[i]);
saa7134_tvaudio_do_scan(dev);
up(&dev->lock);
return 0;
}
case VIDIOC_CROPCAP:
{
struct v4l2_cropcap *cap = arg;
if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
cap->bounds = dev->crop_bounds;
cap->defrect = dev->crop_defrect;
cap->pixelaspect.numerator = 1;
cap->pixelaspect.denominator = 1;
if (dev->tvnorm->id & V4L2_STD_525_60) {
cap->pixelaspect.numerator = 11;
cap->pixelaspect.denominator = 10;
}
if (dev->tvnorm->id & V4L2_STD_625_50) {
cap->pixelaspect.numerator = 54;
cap->pixelaspect.denominator = 59;
}
return 0;
}
case VIDIOC_G_CROP:
{
struct v4l2_crop * crop = arg;
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
crop->c = dev->crop_current;
return 0;
}
case VIDIOC_S_CROP:
{
struct v4l2_crop *crop = arg;
struct v4l2_rect *b = &dev->crop_bounds;
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
if (crop->c.height < 0)
return -EINVAL;
if (crop->c.width < 0)
return -EINVAL;
if (res_locked(fh->dev,RESOURCE_OVERLAY))
return -EBUSY;
if (res_locked(fh->dev,RESOURCE_VIDEO))
return -EBUSY;
if (crop->c.top < b->top)
crop->c.top = b->top;
if (crop->c.top > b->top + b->height)
crop->c.top = b->top + b->height;
if (crop->c.height > b->top - crop->c.top + b->height)
crop->c.height = b->top - crop->c.top + b->height;
if (crop->c.left < b->left)
crop->c.top = b->left;
if (crop->c.left > b->left + b->width)
crop->c.top = b->left + b->width;
if (crop->c.width > b->left - crop->c.left + b->width)
crop->c.width = b->left - crop->c.left + b->width;
dev->crop_current = crop->c;
return 0;
}
/* --- tuner ioctls ------------------------------------------ */
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *t = arg;
int n;
if (0 != t->index)
return -EINVAL;
memset(t,0,sizeof(*t));
for (n = 0; n < SAA7134_INPUT_MAX; n++)
if (card_in(dev,n).tv)
break;
if (NULL != card_in(dev,n).name) {
strcpy(t->name, "Television");
t->capability = V4L2_TUNER_CAP_NORM |
V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 |
V4L2_TUNER_CAP_LANG2;
t->rangehigh = 0xffffffffUL;
t->rxsubchans = saa7134_tvaudio_getstereo(dev);
t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
}
if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
t->signal = 0xffff;
return 0;
}
case VIDIOC_S_TUNER:
{
struct v4l2_tuner *t = arg;
int rx,mode;
mode = dev->thread.mode;
if (UNSET == mode) {
rx = saa7134_tvaudio_getstereo(dev);
mode = saa7134_tvaudio_rx2mode(t->rxsubchans);
}
if (mode != t->audmode) {
dev->thread.mode = t->audmode;
}
return 0;
}
case VIDIOC_G_FREQUENCY:
{
struct v4l2_frequency *f = arg;
memset(f,0,sizeof(*f));
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
f->frequency = dev->ctl_freq;
return 0;
}
case VIDIOC_S_FREQUENCY:
{
struct v4l2_frequency *f = arg;
if (0 != f->tuner)
return -EINVAL;
if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
return -EINVAL;
if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
return -EINVAL;
down(&dev->lock);
dev->ctl_freq = f->frequency;
#ifdef V4L2_I2C_CLIENTS
saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
#else
saa7134_i2c_call_clients(dev,VIDIOCSFREQ,&dev->ctl_freq);
#endif
saa7134_tvaudio_do_scan(dev);
up(&dev->lock);
return 0;
}
/* --- control ioctls ---------------------------------------- */
case VIDIOC_ENUMINPUT:
case VIDIOC_G_INPUT:
case VIDIOC_S_INPUT:
case VIDIOC_QUERYCTRL:
case VIDIOC_G_CTRL:
case VIDIOC_S_CTRL:
return saa7134_common_ioctl(dev, cmd, arg);
case VIDIOC_G_AUDIO:
{
struct v4l2_audio *a = arg;
memset(a,0,sizeof(*a));
strcpy(a->name,"audio");
return 0;
}
case VIDIOC_S_AUDIO:
return 0;
case VIDIOC_G_PARM:
{
struct v4l2_captureparm *parm = arg;
memset(parm,0,sizeof(*parm));
return 0;
}
case VIDIOC_G_PRIORITY:
{
enum v4l2_priority *p = arg;
*p = v4l2_prio_max(&dev->prio);
return 0;
}
case VIDIOC_S_PRIORITY:
{
enum v4l2_priority *prio = arg;
return v4l2_prio_change(&dev->prio, &fh->prio, *prio);
}
/* --- preview ioctls ---------------------------------------- */
case VIDIOC_ENUM_FMT:
{
struct v4l2_fmtdesc *f = arg;
enum v4l2_buf_type type;
unsigned int index;
index = f->index;
type = f->type;
switch (type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
if (index >= FORMATS)
return -EINVAL;
if (f->type == V4L2_BUF_TYPE_VIDEO_OVERLAY &&
formats[index].planar)
return -EINVAL;
memset(f,0,sizeof(*f));
f->index = index;
f->type = type;
strlcpy(f->description,formats[index].name,sizeof(f->description));
f->pixelformat = formats[index].fourcc;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
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");
break;
default:
return -EINVAL;
}
return 0;
}
case VIDIOC_G_FBUF:
{
struct v4l2_framebuffer *fb = arg;
*fb = dev->ovbuf;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
return 0;
}
case VIDIOC_S_FBUF:
{
struct v4l2_framebuffer *fb = arg;
struct saa7134_format *fmt;
if(!capable(CAP_SYS_ADMIN) &&
!capable(CAP_SYS_RAWIO))
return -EPERM;
/* check args */
fmt = format_by_fourcc(fb->fmt.pixelformat);
if (NULL == fmt)
return -EINVAL;
/* ok, accept it */
dev->ovbuf = *fb;
dev->ovfmt = fmt;
if (0 == dev->ovbuf.fmt.bytesperline)
dev->ovbuf.fmt.bytesperline =
dev->ovbuf.fmt.width*fmt->depth/8;
return 0;
}
case VIDIOC_OVERLAY:
{
int *on = arg;
if (*on) {
if (!res_get(dev,fh,RESOURCE_OVERLAY))
return -EBUSY;
spin_lock_irqsave(&dev->slock,flags);
start_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
}
if (!*on) {
if (!res_check(fh, RESOURCE_OVERLAY))
return -EINVAL;
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
res_free(dev,fh,RESOURCE_OVERLAY);
}
return 0;
}
/* --- capture ioctls ---------------------------------------- */
case VIDIOC_G_FMT:
{
struct v4l2_format *f = arg;
return saa7134_g_fmt(dev,fh,f);
}
case VIDIOC_S_FMT:
{
struct v4l2_format *f = arg;
return saa7134_s_fmt(dev,fh,f);
}
case VIDIOC_TRY_FMT:
{
struct v4l2_format *f = arg;
return saa7134_try_fmt(dev,fh,f);
}
case VIDIOCGMBUF:
{
struct video_mbuf *mbuf = arg;
struct videobuf_queue *q;
struct v4l2_requestbuffers req;
unsigned int i;
q = saa7134_queue(fh);
memset(&req,0,sizeof(req));
req.type = q->type;
req.count = gbuffers;
req.memory = V4L2_MEMORY_MMAP;
err = videobuf_reqbufs(q,&req);
if (err < 0)
return err;
memset(mbuf,0,sizeof(*mbuf));
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;
}
case VIDIOC_REQBUFS:
return videobuf_reqbufs(saa7134_queue(fh),arg);
case VIDIOC_QUERYBUF:
return videobuf_querybuf(saa7134_queue(fh),arg);
case VIDIOC_QBUF:
return videobuf_qbuf(saa7134_queue(fh),arg);
case VIDIOC_DQBUF:
return videobuf_dqbuf(saa7134_queue(fh),arg,
file->f_flags & O_NONBLOCK);
case VIDIOC_STREAMON:
{
int res = saa7134_resource(fh);
if (!res_get(dev,fh,res))
return -EBUSY;
return videobuf_streamon(saa7134_queue(fh));
}
case VIDIOC_STREAMOFF:
{
int res = saa7134_resource(fh);
err = videobuf_streamoff(saa7134_queue(fh));
if (err < 0)
return err;
res_free(dev,fh,res);
return 0;
}
default:
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
video_do_ioctl);
}
return 0;
}
static int video_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
}
static int radio_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
if (video_debug > 1)
saa7134_print_ioctl(dev->name,cmd);
switch (cmd) {
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *cap = arg;
memset(cap,0,sizeof(*cap));
strcpy(cap->driver, "saa7134");
strlcpy(cap->card, saa7134_boards[dev->board].name,
sizeof(cap->card));
sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
cap->version = SAA7134_VERSION_CODE;
cap->capabilities = V4L2_CAP_TUNER;
return 0;
}
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *t = arg;
if (0 != t->index)
return -EINVAL;
memset(t,0,sizeof(*t));
strcpy(t->name, "Radio");
t->rangelow = (int)(65*16);
t->rangehigh = (int)(108*16);
#ifdef V4L2_I2C_CLIENTS
saa7134_i2c_call_clients(dev,VIDIOC_G_TUNER,t);
#else
{
struct video_tuner vt;
memset(&vt,0,sizeof(vt));
saa7134_i2c_call_clients(dev,VIDIOCGTUNER,&vt);
t->signal = vt.signal;
}
#endif
return 0;
}
case VIDIOC_ENUMINPUT:
{
struct v4l2_input *i = arg;
if (i->index != 0)
return -EINVAL;
strcpy(i->name,"Radio");
i->type = V4L2_INPUT_TYPE_TUNER;
return 0;
}
case VIDIOC_G_INPUT:
{
int *i = arg;
*i = 0;
return 0;
}
case VIDIOC_G_AUDIO:
{
struct v4l2_audio *a = arg;
memset(a,0,sizeof(*a));
strcpy(a->name,"Radio");
return 0;
}
case VIDIOC_G_STD:
{
v4l2_std_id *id = arg;
*id = 0;
return 0;
}
case VIDIOC_S_AUDIO:
case VIDIOC_S_TUNER:
case VIDIOC_S_INPUT:
case VIDIOC_S_STD:
return 0;
case VIDIOC_QUERYCTRL:
{
const struct v4l2_queryctrl *ctrl;
struct v4l2_queryctrl *c = arg;
if (c->id < V4L2_CID_BASE ||
c->id >= V4L2_CID_LASTP1)
return -EINVAL;
if (c->id == V4L2_CID_AUDIO_MUTE) {
ctrl = ctrl_by_id(c->id);
*c = *ctrl;
} else
*c = no_ctrl;
return 0;
}
case VIDIOC_G_CTRL:
case VIDIOC_S_CTRL:
case VIDIOC_G_FREQUENCY:
case VIDIOC_S_FREQUENCY:
return video_do_ioctl(inode,file,cmd,arg);
default:
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
radio_do_ioctl);
}
return 0;
}
static int radio_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
}
static struct file_operations video_fops =
{
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.read = video_read,
.poll = video_poll,
.mmap = video_mmap,
.ioctl = video_ioctl,
.llseek = no_llseek,
};
static struct file_operations radio_fops =
{
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.ioctl = radio_ioctl,
.llseek = no_llseek,
};
/* ----------------------------------------------------------- */
/* exported stuff */
struct video_device saa7134_video_template =
{
.name = "saa7134-video",
.type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY|
VID_TYPE_CLIPPING|VID_TYPE_SCALES,
.hardware = 0,
.fops = &video_fops,
.minor = -1,
};
struct video_device saa7134_vbi_template =
{
.name = "saa7134-vbi",
.type = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
.hardware = 0,
.fops = &video_fops,
.minor = -1,
};
struct video_device saa7134_radio_template =
{
.name = "saa7134-radio",
.type = VID_TYPE_TUNER,
.hardware = 0,
.fops = &radio_fops,
.minor = -1,
};
int saa7134_video_init1(struct saa7134_dev *dev)
{
/* sanitycheck insmod options */
if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
gbuffers = 2;
if (gbufsize < 0 || gbufsize > gbufsize_max)
gbufsize = gbufsize_max;
gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
/* put some sensible defaults into the data structures ... */
dev->ctl_bright = ctrl_by_id(V4L2_CID_BRIGHTNESS)->default_value;
dev->ctl_contrast = ctrl_by_id(V4L2_CID_CONTRAST)->default_value;
dev->ctl_hue = ctrl_by_id(V4L2_CID_HUE)->default_value;
dev->ctl_saturation = ctrl_by_id(V4L2_CID_SATURATION)->default_value;
dev->ctl_volume = ctrl_by_id(V4L2_CID_AUDIO_VOLUME)->default_value;
dev->ctl_mute = 1; // ctrl_by_id(V4L2_CID_AUDIO_MUTE)->default_value;
dev->ctl_invert = ctrl_by_id(V4L2_CID_PRIVATE_INVERT)->default_value;
dev->ctl_automute = ctrl_by_id(V4L2_CID_PRIVATE_AUTOMUTE)->default_value;
if (dev->tda9887_conf && dev->ctl_automute)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
dev->automute = 0;
INIT_LIST_HEAD(&dev->video_q.queue);
init_timer(&dev->video_q.timeout);
dev->video_q.timeout.function = saa7134_buffer_timeout;
dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
dev->video_q.dev = dev;
if (saa7134_boards[dev->board].video_out) {
/* enable video output */
int vo = saa7134_boards[dev->board].video_out;
saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_out[vo][1]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_out[vo][5]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_out[vo][6]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
}
return 0;
}
int saa7134_video_init2(struct saa7134_dev *dev)
{
/* init video hw */
set_tvnorm(dev,&tvnorms[0]);
video_mux(dev,0);
saa7134_tvaudio_setmute(dev);
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
return 0;
}
int saa7134_video_fini(struct saa7134_dev *dev)
{
/* nothing */
return 0;
}
void saa7134_irq_video_intl(struct saa7134_dev *dev)
{
static const char *st[] = {
"(no signal)", "NTSC", "PAL", "SECAM" };
u32 st1,st2;
st1 = saa_readb(SAA7134_STATUS_VIDEO1);
st2 = saa_readb(SAA7134_STATUS_VIDEO2);
dprintk("DCSDT: pll: %s, sync: %s, norm: %s\n",
(st1 & 0x40) ? "not locked" : "locked",
(st2 & 0x40) ? "no" : "yes",
st[st1 & 0x03]);
dev->nosignal = (st1 & 0x40) || (st2 & 0x40);
if (dev->nosignal) {
/* no video signal -> mute audio */
if (dev->ctl_automute)
dev->automute = 1;
saa7134_tvaudio_setmute(dev);
saa_setb(SAA7134_SYNC_CTRL, 0x20);
} else {
/* wake up tvaudio audio carrier scan thread */
saa7134_tvaudio_do_scan(dev);
if (!noninterlaced)
saa_clearb(SAA7134_SYNC_CTRL, 0x20);
}
if (dev->mops && dev->mops->signal_change)
dev->mops->signal_change(dev);
}
void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
{
enum v4l2_field field;
spin_lock(&dev->slock);
if (dev->video_q.curr) {
dev->video_fieldcount++;
field = dev->video_q.curr->vb.field;
if (V4L2_FIELD_HAS_BOTH(field)) {
/* make sure we have seen both fields */
if ((status & 0x10) == 0x00) {
dev->video_q.curr->top_seen = 1;
goto done;
}
if (!dev->video_q.curr->top_seen)
goto done;
} else if (field == V4L2_FIELD_TOP) {
if ((status & 0x10) != 0x10)
goto done;
} else if (field == V4L2_FIELD_BOTTOM) {
if ((status & 0x10) != 0x00)
goto done;
}
dev->video_q.curr->vb.field_count = dev->video_fieldcount;
saa7134_buffer_finish(dev,&dev->video_q,STATE_DONE);
}
saa7134_buffer_next(dev,&dev->video_q);
done:
spin_unlock(&dev->slock);
}
/* ----------------------------------------------------------- */
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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