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linuxdebug/drivers/media/pci/saa7134/saa7134-video.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* device driver for philips saa7134 based TV cards
* video4linux video interface
*
* (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
*/
#include "saa7134.h"
#include "saa7134-reg.h"
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/sort.h>
#include <media/v4l2-common.h>
#include <media/v4l2-event.h>
#include <media/i2c/saa6588.h>
/* ------------------------------------------------------------------ */
unsigned int video_debug;
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;
static char secam[] = "--";
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,"capture non interlaced video");
module_param_string(secam, secam, sizeof(secam), 0644);
MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
#define video_dbg(fmt, arg...) do { \
if (video_debug & 0x04) \
printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
} while (0)
/* ------------------------------------------------------------------ */
/* Defines for Video Output Port Register at address 0x191 */
/* Bit 0: VIP code T bit polarity */
#define VP_T_CODE_P_NON_INVERTED 0x00
#define VP_T_CODE_P_INVERTED 0x01
/* ------------------------------------------------------------------ */
/* Defines for Video Output Port Register at address 0x195 */
/* Bit 2: Video output clock delay control */
#define VP_CLK_CTRL2_NOT_DELAYED 0x00
#define VP_CLK_CTRL2_DELAYED 0x04
/* Bit 1: Video output clock invert control */
#define VP_CLK_CTRL1_NON_INVERTED 0x00
#define VP_CLK_CTRL1_INVERTED 0x02
/* ------------------------------------------------------------------ */
/* Defines for Video Output Port Register at address 0x196 */
/* Bits 2 to 0: VSYNC pin video vertical sync type */
#define VP_VS_TYPE_MASK 0x07
#define VP_VS_TYPE_OFF 0x00
#define VP_VS_TYPE_V123 0x01
#define VP_VS_TYPE_V_ITU 0x02
#define VP_VS_TYPE_VGATE_L 0x03
#define VP_VS_TYPE_RESERVED1 0x04
#define VP_VS_TYPE_RESERVED2 0x05
#define VP_VS_TYPE_F_ITU 0x06
#define VP_VS_TYPE_SC_FID 0x07
/* ------------------------------------------------------------------ */
/* data structs for video */
static int video_out[][9] = {
[CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
};
static struct saa7134_format formats[] = {
{
.fourcc = V4L2_PIX_FMT_GREY,
.depth = 8,
.pm = 0x06,
},{
.fourcc = V4L2_PIX_FMT_RGB555,
.depth = 16,
.pm = 0x13 | 0x80,
},{
.fourcc = V4L2_PIX_FMT_RGB555X,
.depth = 16,
.pm = 0x13 | 0x80,
.bswap = 1,
},{
.fourcc = V4L2_PIX_FMT_RGB565,
.depth = 16,
.pm = 0x10 | 0x80,
},{
.fourcc = V4L2_PIX_FMT_RGB565X,
.depth = 16,
.pm = 0x10 | 0x80,
.bswap = 1,
},{
.fourcc = V4L2_PIX_FMT_BGR24,
.depth = 24,
.pm = 0x11,
},{
.fourcc = V4L2_PIX_FMT_RGB24,
.depth = 24,
.pm = 0x11,
.bswap = 1,
},{
.fourcc = V4L2_PIX_FMT_BGR32,
.depth = 32,
.pm = 0x12,
},{
.fourcc = V4L2_PIX_FMT_RGB32,
.depth = 32,
.pm = 0x12,
.bswap = 1,
.wswap = 1,
},{
.fourcc = V4L2_PIX_FMT_YUYV,
.depth = 16,
.pm = 0x00,
.bswap = 1,
.yuv = 1,
},{
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
.pm = 0x00,
.yuv = 1,
},{
.fourcc = V4L2_PIX_FMT_YUV422P,
.depth = 16,
.pm = 0x09,
.yuv = 1,
.planar = 1,
.hshift = 1,
.vshift = 0,
},{
.fourcc = V4L2_PIX_FMT_YUV420,
.depth = 12,
.pm = 0x0a,
.yuv = 1,
.planar = 1,
.hshift = 1,
.vshift = 1,
},{
.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_0 = 7, \
.vbi_v_stop_0 = 23, \
.vbi_v_start_1 = 319, \
.src_timing = 4
#define NORM_525_60 \
.h_start = 0, \
.h_stop = 719, \
.video_v_start = 23, \
.video_v_stop = 262, \
.vbi_v_start_0 = 10, \
.vbi_v_stop_0 = 21, \
.vbi_v_start_1 = 273, \
.src_timing = 7
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,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
},{
.name = "SECAM-DK",
.id = V4L2_STD_SECAM_DK,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
},{
.name = "SECAM-L",
.id = V4L2_STD_SECAM_L,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
},{
.name = "SECAM-Lc",
.id = V4L2_STD_SECAM_LC,
NORM_625_50,
.sync_control = 0x18,
.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 = 23,
.video_v_stop = 262,
.vbi_v_start_0 = 10,
.vbi_v_stop_0 = 21,
.vbi_v_start_1 = 273,
.src_timing = 7,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
}
};
#define TVNORMS ARRAY_SIZE(tvnorms)
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;
}
/* ------------------------------------------------------------------ */
static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
{
video_dbg("set tv norm = %s\n", norm->name);
dev->tvnorm = norm;
/* 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_0+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;
saa7134_set_tvnorm_hw(dev);
}
static void video_mux(struct saa7134_dev *dev, int input)
{
video_dbg("video input = %d [%s]\n",
input, saa7134_input_name[card_in(dev, input).type]);
dev->ctl_input = input;
set_tvnorm(dev, dev->tvnorm);
saa7134_tvaudio_setinput(dev, &card_in(dev, input));
}
static void saa7134_set_decoder(struct saa7134_dev *dev)
{
int luma_control, sync_control, chroma_ctrl1, mux;
struct saa7134_tvnorm *norm = dev->tvnorm;
mux = card_in(dev, dev->ctl_input).vmux;
luma_control = norm->luma_control;
sync_control = norm->sync_control;
chroma_ctrl1 = norm->chroma_ctrl1;
if (mux > 5)
luma_control |= 0x80; /* svideo */
if (noninterlaced || dev->nosignal)
sync_control |= 0x20;
/* switch on auto standard detection */
sync_control |= SAA7134_SYNC_CTRL_AUFD;
chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
/* 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_invert ? -dev->ctl_contrast : dev->ctl_contrast);
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
saa_writeb(SAA7134_CHROMA_CTRL1, 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);
}
void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
{
saa7134_set_decoder(dev);
saa_call_all(dev, video, s_std, dev->tvnorm->id);
/* Set the correct norm for the saa6752hs. This function
does nothing if there is no saa6752hs. */
saa_call_empress(dev, video, s_std, dev->tvnorm->id);
}
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 */
video_dbg("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;
video_dbg("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;
video_dbg("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 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);
video_dbg("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;
}
/* Sort into smallest position first order */
static int cliplist_cmp(const void *a, const void *b)
{
const struct cliplist *cla = a;
const struct cliplist *clb = b;
if (cla->position < clb->position)
return -1;
if (cla->position > clb->position)
return 1;
return 0;
}
static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
int nclips, int interlace)
{
struct cliplist col[16], row[16];
int cols = 0, rows = 0, i;
int div = interlace ? 2 : 1;
memset(col, 0, sizeof(col));
memset(row, 0, sizeof(row));
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(col, cols, sizeof col[0], cliplist_cmp, NULL);
sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
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, bool try)
{
enum v4l2_field field;
int maxw, maxh;
if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
return -EINVAL;
if (win->w.width < 48)
win->w.width = 48;
if (win->w.height < 32)
win->w.height = 32;
if (win->clipcount > 8)
win->clipcount = 8;
win->chromakey = 0;
win->global_alpha = 0;
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;
default:
field = V4L2_FIELD_INTERLACED;
break;
}
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)
{
unsigned long base,control,bpl;
int err;
err = verify_preview(dev, &dev->win, false);
if (0 != err)
return err;
dev->ovfield = dev->win.field;
video_dbg("%s %dx%d+%d+%d 0x%08x field=%s\n", __func__,
dev->win.w.width, dev->win.w.height,
dev->win.w.left, dev->win.w.top,
dev->ovfmt->fourcc, v4l2_field_names[dev->ovfield]);
/* setup window + clipping */
set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
V4L2_FIELD_HAS_BOTH(dev->ovfield));
setup_clipping(dev, dev->clips, dev->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 * dev->win.w.top;
base += dev->ovfmt->depth/8 * dev->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)
{
dev->ovenable = 0;
saa7134_set_dmabits(dev);
return 0;
}
/*
* Media Controller helper functions
*/
static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
{
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_device *mdev = dev->media_dev;
struct media_entity *source;
struct media_link *link, *found_link = NULL;
int ret, active_links = 0;
if (!mdev || !dev->decoder)
return 0;
/*
* This will find the tuner that is connected into the decoder.
* Technically, this is not 100% correct, as the device may be
* using an analog input instead of the tuner. However, as we can't
* do DVB streaming while the DMA engine is being used for V4L2,
* this should be enough for the actual needs.
*/
list_for_each_entry(link, &dev->decoder->links, list) {
if (link->sink->entity == dev->decoder) {
found_link = link;
if (link->flags & MEDIA_LNK_FL_ENABLED)
active_links++;
break;
}
}
if (active_links == 1 || !found_link)
return 0;
source = found_link->source->entity;
list_for_each_entry(link, &source->links, list) {
struct media_entity *sink;
int flags = 0;
sink = link->sink->entity;
if (sink == dev->decoder)
flags = MEDIA_LNK_FL_ENABLED;
ret = media_entity_setup_link(link, flags);
if (ret) {
pr_err("Couldn't change link %s->%s to %s. Error %d\n",
source->name, sink->name,
flags ? "enabled" : "disabled",
ret);
return ret;
}
}
#endif
return 0;
}
/* ------------------------------------------------------------------ */
static int buffer_activate(struct saa7134_dev *dev,
struct saa7134_buf *buf,
struct saa7134_buf *next)
{
struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
unsigned long base,control,bpl;
unsigned long bpl_uv, lines_uv, base2, base3; /* planar */
video_dbg("buffer_activate buf=%p\n", buf);
buf->top_seen = 0;
set_size(dev, TASK_A, dev->width, dev->height,
V4L2_FIELD_HAS_BOTH(dev->field));
if (dev->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, dev->fmt->pm);
/* DMA: setup channel 0 (= Video Task A0) */
base = saa7134_buffer_base(buf);
if (dev->fmt->planar)
bpl = dev->width;
else
bpl = (dev->width * dev->fmt->depth) / 8;
control = SAA7134_RS_CONTROL_BURST_16 |
SAA7134_RS_CONTROL_ME |
(dmaq->pt.dma >> 12);
if (dev->fmt->bswap)
control |= SAA7134_RS_CONTROL_BSWAP;
if (dev->fmt->wswap)
control |= SAA7134_RS_CONTROL_WSWAP;
if (V4L2_FIELD_HAS_BOTH(dev->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 (dev->fmt->planar) {
/* DMA: setup channel 4+5 (= planar task A) */
bpl_uv = bpl >> dev->fmt->hshift;
lines_uv = dev->height >> dev->fmt->vshift;
base2 = base + bpl * dev->height;
base3 = base2 + bpl_uv * lines_uv;
if (dev->fmt->uvswap)
swap(base2, base3);
video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
bpl_uv,lines_uv,base2,base3);
if (V4L2_FIELD_HAS_BOTH(dev->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(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
return 0;
}
static int buffer_init(struct vb2_buffer *vb2)
{
struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
dmaq->curr = NULL;
buf->activate = buffer_activate;
return 0;
}
static int buffer_prepare(struct vb2_buffer *vb2)
{
struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
struct saa7134_dev *dev = dmaq->dev;
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
unsigned int size;
if (dma->sgl->offset) {
pr_err("The buffer is not page-aligned\n");
return -EINVAL;
}
size = (dev->width * dev->height * dev->fmt->depth) >> 3;
if (vb2_plane_size(vb2, 0) < size)
return -EINVAL;
vb2_set_plane_payload(vb2, 0, size);
vbuf->field = dev->field;
return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
saa7134_buffer_startpage(buf));
}
static int queue_setup(struct vb2_queue *q,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], struct device *alloc_devs[])
{
struct saa7134_dmaqueue *dmaq = q->drv_priv;
struct saa7134_dev *dev = dmaq->dev;
int size = dev->fmt->depth * dev->width * dev->height >> 3;
if (dev->width < 48 ||
dev->height < 32 ||
dev->width/4 > dev->crop_current.width ||
dev->height/4 > dev->crop_current.height ||
dev->width > dev->crop_bounds.width ||
dev->height > dev->crop_bounds.height)
return -EINVAL;
*nbuffers = saa7134_buffer_count(size, *nbuffers);
*nplanes = 1;
sizes[0] = size;
saa7134_enable_analog_tuner(dev);
return 0;
}
/*
* move buffer to hardware queue
*/
void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
{
struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
struct saa7134_dev *dev = dmaq->dev;
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
saa7134_buffer_queue(dev, dmaq, buf);
}
EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct saa7134_dmaqueue *dmaq = vq->drv_priv;
struct saa7134_dev *dev = dmaq->dev;
/*
* Planar video capture and TS share the same DMA channel,
* so only one can be active at a time.
*/
if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
dmaq == &dev->video_q && dev->fmt->planar) {
struct saa7134_buf *buf, *tmp;
list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
list_del(&buf->entry);
vb2_buffer_done(&buf->vb2.vb2_buf,
VB2_BUF_STATE_QUEUED);
}
if (dmaq->curr) {
vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
VB2_BUF_STATE_QUEUED);
dmaq->curr = NULL;
}
return -EBUSY;
}
/* The SAA7134 has a 1K FIFO; the datasheet suggests that when
* configured conservatively, there's 22 usec of buffering for video.
* We therefore request a DMA latency of 20 usec, giving us 2 usec of
* margin in case the FIFO is configured differently to the datasheet.
* Unfortunately, I lack register-level documentation to check the
* Linux FIFO setup and confirm the perfect value.
*/
if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
(dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
cpu_latency_qos_add_request(&dev->qos_request, 20);
dmaq->seq_nr = 0;
return 0;
}
void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
{
struct saa7134_dmaqueue *dmaq = vq->drv_priv;
struct saa7134_dev *dev = dmaq->dev;
saa7134_stop_streaming(dev, dmaq);
if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
(dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
cpu_latency_qos_remove_request(&dev->qos_request);
}
static const struct vb2_ops vb2_qops = {
.queue_setup = queue_setup,
.buf_init = buffer_init,
.buf_prepare = buffer_prepare,
.buf_queue = saa7134_vb2_buffer_queue,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.start_streaming = saa7134_vb2_start_streaming,
.stop_streaming = saa7134_vb2_stop_streaming,
};
/* ------------------------------------------------------------------ */
static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
unsigned long flags;
int restart_overlay = 0;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
dev->ctl_bright = ctrl->val;
saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
break;
case V4L2_CID_HUE:
dev->ctl_hue = ctrl->val;
saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
break;
case V4L2_CID_CONTRAST:
dev->ctl_contrast = ctrl->val;
saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
break;
case V4L2_CID_SATURATION:
dev->ctl_saturation = ctrl->val;
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
break;
case V4L2_CID_AUDIO_MUTE:
dev->ctl_mute = ctrl->val;
saa7134_tvaudio_setmute(dev);
break;
case V4L2_CID_AUDIO_VOLUME:
dev->ctl_volume = ctrl->val;
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
break;
case V4L2_CID_PRIVATE_INVERT:
dev->ctl_invert = ctrl->val;
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_HFLIP:
dev->ctl_mirror = ctrl->val;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_Y_EVEN:
dev->ctl_y_even = ctrl->val;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_Y_ODD:
dev->ctl_y_odd = ctrl->val;
restart_overlay = 1;
break;
case V4L2_CID_PRIVATE_AUTOMUTE:
{
struct v4l2_priv_tun_config tda9887_cfg;
tda9887_cfg.tuner = TUNER_TDA9887;
tda9887_cfg.priv = &dev->tda9887_conf;
dev->ctl_automute = ctrl->val;
if (dev->tda9887_conf) {
if (dev->ctl_automute)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
else
dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
saa_call_all(dev, tuner, s_config, &tda9887_cfg);
}
break;
}
default:
return -EINVAL;
}
if (restart_overlay && dev->overlay_owner) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
start_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
}
return 0;
}
/* ------------------------------------------------------------------ */
static int video_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_dev *dev = video_drvdata(file);
int ret = v4l2_fh_open(file);
if (ret < 0)
return ret;
mutex_lock(&dev->lock);
if (vdev->vfl_type == VFL_TYPE_RADIO) {
/* switch to radio mode */
saa7134_tvaudio_setinput(dev, &card(dev).radio);
saa_call_all(dev, tuner, s_radio);
} else {
/* switch to video/vbi mode */
video_mux(dev, dev->ctl_input);
}
mutex_unlock(&dev->lock);
return 0;
}
static int video_release(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_fh *fh = file->private_data;
struct saa6588_command cmd;
unsigned long flags;
mutex_lock(&dev->lock);
saa7134_tvaudio_close(dev);
/* turn off overlay */
if (fh == dev->overlay_owner) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock,flags);
dev->overlay_owner = NULL;
}
if (vdev->vfl_type == VFL_TYPE_RADIO)
v4l2_fh_release(file);
else
_vb2_fop_release(file, NULL);
/* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
saa_call_all(dev, tuner, standby);
if (vdev->vfl_type == VFL_TYPE_RADIO)
saa_call_all(dev, core, command, SAA6588_CMD_CLOSE, &cmd);
mutex_unlock(&dev->lock);
return 0;
}
static ssize_t radio_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct saa7134_dev *dev = video_drvdata(file);
struct saa6588_command cmd;
cmd.block_count = count/3;
cmd.nonblocking = file->f_flags & O_NONBLOCK;
cmd.buffer = data;
cmd.instance = file;
cmd.result = -ENODEV;
mutex_lock(&dev->lock);
saa_call_all(dev, core, command, SAA6588_CMD_READ, &cmd);
mutex_unlock(&dev->lock);
return cmd.result;
}
static __poll_t radio_poll(struct file *file, poll_table *wait)
{
struct saa7134_dev *dev = video_drvdata(file);
struct saa6588_command cmd;
__poll_t rc = v4l2_ctrl_poll(file, wait);
cmd.instance = file;
cmd.event_list = wait;
cmd.poll_mask = 0;
mutex_lock(&dev->lock);
saa_call_all(dev, core, command, SAA6588_CMD_POLL, &cmd);
mutex_unlock(&dev->lock);
return rc | cmd.poll_mask;
}
/* ------------------------------------------------------------------ */
static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_tvnorm *norm = dev->tvnorm;
memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
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_0;
f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
f->fmt.vbi.start[1] = norm->vbi_v_start_1;
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
return 0;
}
static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
f->fmt.pix.field = dev->field;
f->fmt.pix.pixelformat = dev->fmt->fourcc;
if (dev->fmt->planar)
f->fmt.pix.bytesperline = f->fmt.pix.width;
else
f->fmt.pix.bytesperline =
(f->fmt.pix.width * dev->fmt->depth) / 8;
f->fmt.pix.sizeimage =
(f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
u32 clipcount = f->fmt.win.clipcount;
int i;
if (saa7134_no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
f->fmt.win = dev->win;
if (!f->fmt.win.clips) {
f->fmt.win.clipcount = 0;
return 0;
}
if (dev->nclips < clipcount)
clipcount = dev->nclips;
f->fmt.win.clipcount = clipcount;
for (i = 0; i < clipcount; i++) {
memcpy(&f->fmt.win.clips[i].c, &dev->clips[i].c,
sizeof(struct v4l2_rect));
}
return 0;
}
static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
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;
default:
field = V4L2_FIELD_INTERLACED;
break;
}
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;
if (fmt->planar)
f->fmt.pix.bytesperline = f->fmt.pix.width;
else
f->fmt.pix.bytesperline =
(f->fmt.pix.width * fmt->depth) / 8;
f->fmt.pix.sizeimage =
(f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
if (saa7134_no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
if (f->fmt.win.clips == NULL)
f->fmt.win.clipcount = 0;
return verify_preview(dev, &f->fmt.win, true);
}
static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
int err;
err = saa7134_try_fmt_vid_cap(file, priv, f);
if (0 != err)
return err;
dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
dev->width = f->fmt.pix.width;
dev->height = f->fmt.pix.height;
dev->field = f->fmt.pix.field;
return 0;
}
static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = video_drvdata(file);
int err;
unsigned long flags;
if (saa7134_no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
if (f->fmt.win.clips == NULL)
f->fmt.win.clipcount = 0;
err = verify_preview(dev, &f->fmt.win, true);
if (0 != err)
return err;
dev->win = f->fmt.win;
dev->nclips = f->fmt.win.clipcount;
memcpy(dev->clips, f->fmt.win.clips,
sizeof(struct v4l2_clip) * dev->nclips);
if (priv == dev->overlay_owner) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
start_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
}
return 0;
}
int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
{
struct saa7134_dev *dev = video_drvdata(file);
unsigned int n;
n = i->index;
if (n >= SAA7134_INPUT_MAX)
return -EINVAL;
if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
return -EINVAL;
i->index = n;
strscpy(i->name, saa7134_input_name[card_in(dev, n).type],
sizeof(i->name));
switch (card_in(dev, n).type) {
case SAA7134_INPUT_TV:
case SAA7134_INPUT_TV_MONO:
i->type = V4L2_INPUT_TYPE_TUNER;
break;
default:
i->type = V4L2_INPUT_TYPE_CAMERA;
break;
}
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_SIGNAL;
if (0 != (v2 & 0x0e))
i->status |= V4L2_IN_ST_MACROVISION;
}
i->std = SAA7134_NORMS;
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_enum_input);
int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
{
struct saa7134_dev *dev = video_drvdata(file);
*i = dev->ctl_input;
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_g_input);
int saa7134_s_input(struct file *file, void *priv, unsigned int i)
{
struct saa7134_dev *dev = video_drvdata(file);
if (i >= SAA7134_INPUT_MAX)
return -EINVAL;
if (card_in(dev, i).type == SAA7134_NO_INPUT)
return -EINVAL;
video_mux(dev, i);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_s_input);
int saa7134_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct saa7134_dev *dev = video_drvdata(file);
strscpy(cap->driver, "saa7134", sizeof(cap->driver));
strscpy(cap->card, saa7134_boards[dev->board].name,
sizeof(cap->card));
cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VBI_CAPTURE | V4L2_CAP_DEVICE_CAPS;
if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
cap->capabilities |= V4L2_CAP_TUNER;
if (dev->has_rds)
cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
if (saa7134_no_overlay <= 0)
cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_querycap);
int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
{
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_fh *fh = priv;
unsigned long flags;
unsigned int i;
v4l2_std_id fixup;
if (is_empress(file) && dev->overlay_owner) {
/* Don't change the std from the mpeg device
if overlay is active. */
return -EBUSY;
}
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;
if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
if (secam[0] == 'L' || secam[0] == 'l') {
if (secam[1] == 'C' || secam[1] == 'c')
fixup = V4L2_STD_SECAM_LC;
else
fixup = V4L2_STD_SECAM_L;
} else {
if (secam[0] == 'D' || secam[0] == 'd')
fixup = V4L2_STD_SECAM_DK;
else
fixup = V4L2_STD_SECAM;
}
for (i = 0; i < TVNORMS; i++) {
if (fixup == tvnorms[i].id)
break;
}
if (i == TVNORMS)
return -EINVAL;
}
if (!is_empress(file) && fh == dev->overlay_owner) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
set_tvnorm(dev, &tvnorms[i]);
spin_lock_irqsave(&dev->slock, flags);
start_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
} else
set_tvnorm(dev, &tvnorms[i]);
saa7134_tvaudio_do_scan(dev);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_s_std);
int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct saa7134_dev *dev = video_drvdata(file);
*id = dev->tvnorm->id;
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_g_std);
static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
{
static v4l2_std_id stds[] = {
V4L2_STD_UNKNOWN,
V4L2_STD_NTSC,
V4L2_STD_PAL,
V4L2_STD_SECAM };
v4l2_std_id result = 0;
u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
if (!(st2 & 0x1)) /* RDCAP == 0 */
result = V4L2_STD_UNKNOWN;
else
result = stds[st1 & 0x03];
return result;
}
int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
{
struct saa7134_dev *dev = video_drvdata(file);
*std &= saa7134_read_std(dev);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_querystd);
static int saa7134_g_pixelaspect(struct file *file, void *priv,
int type, struct v4l2_fract *f)
{
struct saa7134_dev *dev = video_drvdata(file);
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
if (dev->tvnorm->id & V4L2_STD_525_60) {
f->numerator = 11;
f->denominator = 10;
}
if (dev->tvnorm->id & V4L2_STD_625_50) {
f->numerator = 54;
f->denominator = 59;
}
return 0;
}
static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
{
struct saa7134_dev *dev = video_drvdata(file);
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
sel->r = dev->crop_current;
break;
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r = dev->crop_defrect;
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r = dev->crop_bounds;
break;
default:
return -EINVAL;
}
return 0;
}
static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
{
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_rect *b = &dev->crop_bounds;
struct v4l2_rect *c = &dev->crop_current;
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
if (dev->overlay_owner)
return -EBUSY;
if (vb2_is_streaming(&dev->video_vbq))
return -EBUSY;
*c = sel->r;
if (c->top < b->top)
c->top = b->top;
if (c->top > b->top + b->height)
c->top = b->top + b->height;
if (c->height > b->top - c->top + b->height)
c->height = b->top - c->top + b->height;
if (c->left < b->left)
c->left = b->left;
if (c->left > b->left + b->width)
c->left = b->left + b->width;
if (c->width > b->left - c->left + b->width)
c->width = b->left - c->left + b->width;
sel->r = *c;
return 0;
}
int saa7134_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct saa7134_dev *dev = video_drvdata(file);
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).type == SAA7134_INPUT_TV ||
card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
break;
}
if (n == SAA7134_INPUT_MAX)
return -EINVAL;
if (card_in(dev, n).type != SAA7134_NO_INPUT) {
strscpy(t->name, "Television", sizeof(t->name));
t->type = V4L2_TUNER_ANALOG_TV;
saa_call_all(dev, tuner, g_tuner, t);
t->capability = V4L2_TUNER_CAP_NORM |
V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 |
V4L2_TUNER_CAP_LANG2;
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;
}
EXPORT_SYMBOL_GPL(saa7134_g_tuner);
int saa7134_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct saa7134_dev *dev = video_drvdata(file);
int rx, mode;
if (0 != t->index)
return -EINVAL;
mode = dev->thread.mode;
if (UNSET == mode) {
rx = saa7134_tvaudio_getstereo(dev);
mode = saa7134_tvaudio_rx2mode(rx);
}
if (mode != t->audmode)
dev->thread.mode = t->audmode;
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_s_tuner);
int saa7134_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct saa7134_dev *dev = video_drvdata(file);
if (0 != f->tuner)
return -EINVAL;
saa_call_all(dev, tuner, g_frequency, f);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_g_frequency);
int saa7134_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
struct saa7134_dev *dev = video_drvdata(file);
if (0 != f->tuner)
return -EINVAL;
saa_call_all(dev, tuner, s_frequency, f);
saa7134_tvaudio_do_scan(dev);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_s_frequency);
static int saa7134_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (f->index >= FORMATS)
return -EINVAL;
f->pixelformat = formats[f->index].fourcc;
return 0;
}
static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (saa7134_no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
if ((f->index >= FORMATS) || formats[f->index].planar)
return -EINVAL;
f->pixelformat = formats[f->index].fourcc;
return 0;
}
static int saa7134_g_fbuf(struct file *file, void *f,
struct v4l2_framebuffer *fb)
{
struct saa7134_dev *dev = video_drvdata(file);
*fb = dev->ovbuf;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
return 0;
}
static int saa7134_s_fbuf(struct file *file, void *f,
const struct v4l2_framebuffer *fb)
{
struct saa7134_dev *dev = video_drvdata(file);
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;
}
static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
{
struct saa7134_dev *dev = video_drvdata(file);
unsigned long flags;
if (on) {
if (saa7134_no_overlay > 0) {
video_dbg("no_overlay\n");
return -EINVAL;
}
if (dev->overlay_owner && priv != dev->overlay_owner)
return -EBUSY;
dev->overlay_owner = priv;
spin_lock_irqsave(&dev->slock, flags);
start_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
} else {
if (priv != dev->overlay_owner)
return -EINVAL;
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
dev->overlay_owner = NULL;
}
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vidioc_g_register (struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct saa7134_dev *dev = video_drvdata(file);
reg->val = saa_readb(reg->reg & 0xffffff);
reg->size = 1;
return 0;
}
static int vidioc_s_register (struct file *file, void *priv,
const struct v4l2_dbg_register *reg)
{
struct saa7134_dev *dev = video_drvdata(file);
saa_writeb(reg->reg & 0xffffff, reg->val);
return 0;
}
#endif
static int radio_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct saa7134_dev *dev = video_drvdata(file);
if (0 != t->index)
return -EINVAL;
strscpy(t->name, "Radio", sizeof(t->name));
saa_call_all(dev, tuner, g_tuner, t);
t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
if (dev->input->amux == TV) {
t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
t->rxsubchans = (saa_readb(0x529) & 0x08) ?
V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
}
return 0;
}
static int radio_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct saa7134_dev *dev = video_drvdata(file);
if (0 != t->index)
return -EINVAL;
saa_call_all(dev, tuner, s_tuner, t);
return 0;
}
static const struct v4l2_file_operations video_fops =
{
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.read = vb2_fop_read,
.poll = vb2_fop_poll,
.mmap = vb2_fop_mmap,
.unlocked_ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querycap = saa7134_querycap,
.vidioc_enum_fmt_vid_cap = saa7134_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = saa7134_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = saa7134_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = saa7134_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_overlay = saa7134_enum_fmt_vid_overlay,
.vidioc_g_fmt_vid_overlay = saa7134_g_fmt_vid_overlay,
.vidioc_try_fmt_vid_overlay = saa7134_try_fmt_vid_overlay,
.vidioc_s_fmt_vid_overlay = saa7134_s_fmt_vid_overlay,
.vidioc_g_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
.vidioc_try_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
.vidioc_s_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
.vidioc_g_pixelaspect = saa7134_g_pixelaspect,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
.vidioc_querystd = saa7134_querystd,
.vidioc_enum_input = saa7134_enum_input,
.vidioc_g_input = saa7134_g_input,
.vidioc_s_input = saa7134_s_input,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_tuner = saa7134_g_tuner,
.vidioc_s_tuner = saa7134_s_tuner,
.vidioc_g_selection = saa7134_g_selection,
.vidioc_s_selection = saa7134_s_selection,
.vidioc_g_fbuf = saa7134_g_fbuf,
.vidioc_s_fbuf = saa7134_s_fbuf,
.vidioc_overlay = saa7134_overlay,
.vidioc_g_frequency = saa7134_g_frequency,
.vidioc_s_frequency = saa7134_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static const struct v4l2_file_operations radio_fops = {
.owner = THIS_MODULE,
.open = video_open,
.read = radio_read,
.release = video_release,
.unlocked_ioctl = video_ioctl2,
.poll = radio_poll,
};
static const struct v4l2_ioctl_ops radio_ioctl_ops = {
.vidioc_querycap = saa7134_querycap,
.vidioc_g_tuner = radio_g_tuner,
.vidioc_s_tuner = radio_s_tuner,
.vidioc_g_frequency = saa7134_g_frequency,
.vidioc_s_frequency = saa7134_s_frequency,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
/* ----------------------------------------------------------- */
/* exported stuff */
struct video_device saa7134_video_template = {
.name = "saa7134-video",
.fops = &video_fops,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = SAA7134_NORMS,
};
struct video_device saa7134_radio_template = {
.name = "saa7134-radio",
.fops = &radio_fops,
.ioctl_ops = &radio_ioctl_ops,
};
static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
.s_ctrl = saa7134_s_ctrl,
};
static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
.ops = &saa7134_ctrl_ops,
.id = V4L2_CID_PRIVATE_INVERT,
.name = "Invert",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
};
static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
.ops = &saa7134_ctrl_ops,
.id = V4L2_CID_PRIVATE_Y_ODD,
.name = "Y Offset Odd Field",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 128,
.step = 1,
};
static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
.ops = &saa7134_ctrl_ops,
.id = V4L2_CID_PRIVATE_Y_EVEN,
.name = "Y Offset Even Field",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 128,
.step = 1,
};
static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
.ops = &saa7134_ctrl_ops,
.id = V4L2_CID_PRIVATE_AUTOMUTE,
.name = "Automute",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
int saa7134_video_init1(struct saa7134_dev *dev)
{
struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
struct vb2_queue *q;
int ret;
/* sanitycheck insmod options */
if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
gbuffers = 2;
if (gbufsize > gbufsize_max)
gbufsize = gbufsize_max;
gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
v4l2_ctrl_handler_init(hdl, 11);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_CONTRAST, 0, 127, 1, 68);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_SATURATION, 0, 127, 1, 64);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_HUE, -128, 127, 1, 0);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
if (hdl->error)
return hdl->error;
if (card_has_radio(dev)) {
hdl = &dev->radio_ctrl_handler;
v4l2_ctrl_handler_init(hdl, 2);
v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
v4l2_ctrl_radio_filter, false);
if (hdl->error)
return hdl->error;
}
dev->ctl_mute = 1;
if (dev->tda9887_conf && saa7134_ctrl_automute.def)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
dev->automute = 0;
INIT_LIST_HEAD(&dev->video_q.queue);
timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
dev->video_q.dev = dev;
dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
dev->width = 720;
dev->height = 576;
dev->field = V4L2_FIELD_INTERLACED;
dev->win.w.width = dev->width;
dev->win.w.height = dev->height;
dev->win.field = V4L2_FIELD_INTERLACED;
dev->ovbuf.fmt.width = dev->width;
dev->ovbuf.fmt.height = dev->height;
dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
if (saa7134_boards[dev->board].video_out)
saa7134_videoport_init(dev);
q = &dev->video_vbq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
/*
* Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
* engine cannot handle transfers that do not start at the beginning
* of a page. A user-provided pointer can start anywhere in a page, so
* USERPTR support is a no-go unless the application knows about these
* limitations and has special support for this.
*/
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (saa7134_userptr)
q->io_modes |= VB2_USERPTR;
q->drv_priv = &dev->video_q;
q->ops = &vb2_qops;
q->gfp_flags = GFP_DMA32;
q->mem_ops = &vb2_dma_sg_memops;
q->buf_struct_size = sizeof(struct saa7134_buf);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->lock;
q->dev = &dev->pci->dev;
ret = vb2_queue_init(q);
if (ret)
return ret;
saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
q = &dev->vbi_vbq;
q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
/* Don't add VB2_USERPTR, see comment above */
q->io_modes = VB2_MMAP | VB2_READ;
if (saa7134_userptr)
q->io_modes |= VB2_USERPTR;
q->drv_priv = &dev->vbi_q;
q->ops = &saa7134_vbi_qops;
q->gfp_flags = GFP_DMA32;
q->mem_ops = &vb2_dma_sg_memops;
q->buf_struct_size = sizeof(struct saa7134_buf);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->lock;
q->dev = &dev->pci->dev;
ret = vb2_queue_init(q);
if (ret)
return ret;
saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
return 0;
}
void saa7134_video_fini(struct saa7134_dev *dev)
{
del_timer_sync(&dev->video_q.timeout);
/* free stuff */
saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
v4l2_ctrl_handler_free(&dev->ctrl_handler);
if (card_has_radio(dev))
v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
}
int saa7134_videoport_init(struct saa7134_dev *dev)
{
/* enable video output */
int vo = saa7134_boards[dev->board].video_out;
int video_reg;
unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
/* Configure videoport */
saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
video_reg = video_out[vo][1];
if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
video_reg &= ~VP_T_CODE_P_INVERTED;
saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
video_reg = video_out[vo][5];
if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
video_reg &= ~VP_CLK_CTRL2_DELAYED;
if (vid_port_opts & SET_CLOCK_INVERTED)
video_reg |= VP_CLK_CTRL1_INVERTED;
saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
video_reg = video_out[vo][6];
if (vid_port_opts & SET_VSYNC_OFF) {
video_reg &= ~VP_VS_TYPE_MASK;
video_reg |= VP_VS_TYPE_OFF;
}
saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
/* Start videoport */
saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
return 0;
}
int saa7134_video_init2(struct saa7134_dev *dev)
{
/* init video hw */
set_tvnorm(dev,&tvnorms[0]);
video_mux(dev,0);
v4l2_ctrl_handler_setup(&dev->ctrl_handler);
saa7134_tvaudio_setmute(dev);
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
return 0;
}
void saa7134_irq_video_signalchange(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);
video_dbg("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) || !(st2 & 0x1);
if (dev->nosignal) {
/* no video signal -> mute audio */
if (dev->ctl_automute)
dev->automute = 1;
saa7134_tvaudio_setmute(dev);
} else {
/* wake up tvaudio audio carrier scan thread */
saa7134_tvaudio_do_scan(dev);
}
if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
saa_clearb(SAA7134_SYNC_CTRL, 0x20);
else
saa_setb(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) {
field = dev->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;
}
saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
}
saa7134_buffer_next(dev, &dev->video_q);
done:
spin_unlock(&dev->slock);
}