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linux/drivers/media/video/tvp5150.c
Trent Piepho 62d50addf0 V4L/DVB (5163): Add checks for CAP_SYS_ADMIN to VIDIOC_DBG_G_REGISTER 
Before, root privileges were only needed to set hardware registers, not
to read them.  On some hardware, reading from the wrong place at the
wrong time can hang the machine.  So, to be consistent, root privileges
are required to read registers on all hardware.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21 13:35:10 -02:00

1151 lines
29 KiB
C
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/*
* tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
*
* Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License v2
*/
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/delay.h>
#include <linux/video_decoder.h>
#include <media/v4l2-common.h>
#include <media/tvp5150.h>
#include "tvp5150_reg.h"
MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL");
/* standard i2c insmod options */
static unsigned short normal_i2c[] = {
0xb8 >> 1,
0xba >> 1,
I2C_CLIENT_END
};
I2C_CLIENT_INSMOD;
static int debug = 0;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
#define tvp5150_err(fmt, arg...) do { \
printk(KERN_ERR "%s %d-%04x: " fmt, c->driver->driver.name, \
i2c_adapter_id(c->adapter), c->addr , ## arg); } while (0)
#define tvp5150_info(fmt, arg...) do { \
printk(KERN_INFO "%s %d-%04x: " fmt, c->driver->driver.name, \
i2c_adapter_id(c->adapter), c->addr , ## arg); } while (0)
#define tvp5150_dbg(num, fmt, arg...) \
do { \
if (debug >= num) \
printk(KERN_DEBUG "%s debug %d-%04x: " fmt,\
c->driver->driver.name, \
i2c_adapter_id(c->adapter), \
c->addr , ## arg); } while (0)
/* supported controls */
static struct v4l2_queryctrl tvp5150_qctrl[] = {
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 128,
.flags = 0,
}, {
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 0x1,
.default_value = 128,
.flags = 0,
}, {
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Saturation",
.minimum = 0,
.maximum = 255,
.step = 0x1,
.default_value = 128,
.flags = 0,
}, {
.id = V4L2_CID_HUE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Hue",
.minimum = -128,
.maximum = 127,
.step = 0x1,
.default_value = 0,
.flags = 0,
}
};
struct tvp5150 {
struct i2c_client *client;
v4l2_std_id norm; /* Current set standard */
struct v4l2_routing route;
int enable;
int bright;
int contrast;
int hue;
int sat;
};
static int tvp5150_read(struct i2c_client *c, unsigned char addr)
{
unsigned char buffer[1];
int rc;
buffer[0] = addr;
if (1 != (rc = i2c_master_send(c, buffer, 1)))
tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 1)\n", rc);
msleep(10);
if (1 != (rc = i2c_master_recv(c, buffer, 1)))
tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 1)\n", rc);
tvp5150_dbg(2, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);
return (buffer[0]);
}
static inline void tvp5150_write(struct i2c_client *c, unsigned char addr,
unsigned char value)
{
unsigned char buffer[2];
int rc;
buffer[0] = addr;
buffer[1] = value;
tvp5150_dbg(2, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
if (2 != (rc = i2c_master_send(c, buffer, 2)))
tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 2)\n", rc);
}
static void dump_reg_range(struct i2c_client *c, char *s, u8 init, const u8 end,int max_line)
{
int i=0;
while (init!=(u8)(end+1)) {
if ((i%max_line) == 0) {
if (i>0)
printk("\n");
printk("tvp5150: %s reg 0x%02x = ",s,init);
}
printk("%02x ",tvp5150_read(c, init));
init++;
i++;
}
printk("\n");
}
static void dump_reg(struct i2c_client *c)
{
printk("tvp5150: Video input source selection #1 = 0x%02x\n",
tvp5150_read(c, TVP5150_VD_IN_SRC_SEL_1));
printk("tvp5150: Analog channel controls = 0x%02x\n",
tvp5150_read(c, TVP5150_ANAL_CHL_CTL));
printk("tvp5150: Operation mode controls = 0x%02x\n",
tvp5150_read(c, TVP5150_OP_MODE_CTL));
printk("tvp5150: Miscellaneous controls = 0x%02x\n",
tvp5150_read(c, TVP5150_MISC_CTL));
printk("tvp5150: Autoswitch mask= 0x%02x\n",
tvp5150_read(c, TVP5150_AUTOSW_MSK));
printk("tvp5150: Color killer threshold control = 0x%02x\n",
tvp5150_read(c, TVP5150_COLOR_KIL_THSH_CTL));
printk("tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
tvp5150_read(c, TVP5150_LUMA_PROC_CTL_1),
tvp5150_read(c, TVP5150_LUMA_PROC_CTL_2),
tvp5150_read(c, TVP5150_LUMA_PROC_CTL_3));
printk("tvp5150: Brightness control = 0x%02x\n",
tvp5150_read(c, TVP5150_BRIGHT_CTL));
printk("tvp5150: Color saturation control = 0x%02x\n",
tvp5150_read(c, TVP5150_SATURATION_CTL));
printk("tvp5150: Hue control = 0x%02x\n",
tvp5150_read(c, TVP5150_HUE_CTL));
printk("tvp5150: Contrast control = 0x%02x\n",
tvp5150_read(c, TVP5150_CONTRAST_CTL));
printk("tvp5150: Outputs and data rates select = 0x%02x\n",
tvp5150_read(c, TVP5150_DATA_RATE_SEL));
printk("tvp5150: Configuration shared pins = 0x%02x\n",
tvp5150_read(c, TVP5150_CONF_SHARED_PIN));
printk("tvp5150: Active video cropping start = 0x%02x%02x\n",
tvp5150_read(c, TVP5150_ACT_VD_CROP_ST_MSB),
tvp5150_read(c, TVP5150_ACT_VD_CROP_ST_LSB));
printk("tvp5150: Active video cropping stop = 0x%02x%02x\n",
tvp5150_read(c, TVP5150_ACT_VD_CROP_STP_MSB),
tvp5150_read(c, TVP5150_ACT_VD_CROP_STP_LSB));
printk("tvp5150: Genlock/RTC = 0x%02x\n",
tvp5150_read(c, TVP5150_GENLOCK));
printk("tvp5150: Horizontal sync start = 0x%02x\n",
tvp5150_read(c, TVP5150_HORIZ_SYNC_START));
printk("tvp5150: Vertical blanking start = 0x%02x\n",
tvp5150_read(c, TVP5150_VERT_BLANKING_START));
printk("tvp5150: Vertical blanking stop = 0x%02x\n",
tvp5150_read(c, TVP5150_VERT_BLANKING_STOP));
printk("tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
tvp5150_read(c, TVP5150_CHROMA_PROC_CTL_1),
tvp5150_read(c, TVP5150_CHROMA_PROC_CTL_2));
printk("tvp5150: Interrupt reset register B = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_RESET_REG_B));
printk("tvp5150: Interrupt enable register B = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_ENABLE_REG_B));
printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
tvp5150_read(c, TVP5150_INTT_CONFIG_REG_B));
printk("tvp5150: Video standard = 0x%02x\n",
tvp5150_read(c, TVP5150_VIDEO_STD));
printk("tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
tvp5150_read(c, TVP5150_CB_GAIN_FACT),
tvp5150_read(c, TVP5150_CR_GAIN_FACTOR));
printk("tvp5150: Macrovision on counter = 0x%02x\n",
tvp5150_read(c, TVP5150_MACROVISION_ON_CTR));
printk("tvp5150: Macrovision off counter = 0x%02x\n",
tvp5150_read(c, TVP5150_MACROVISION_OFF_CTR));
printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
(tvp5150_read(c, TVP5150_REV_SELECT)&1)?3:4);
printk("tvp5150: Device ID = %02x%02x\n",
tvp5150_read(c, TVP5150_MSB_DEV_ID),
tvp5150_read(c, TVP5150_LSB_DEV_ID));
printk("tvp5150: ROM version = (hex) %02x.%02x\n",
tvp5150_read(c, TVP5150_ROM_MAJOR_VER),
tvp5150_read(c, TVP5150_ROM_MINOR_VER));
printk("tvp5150: Vertical line count = 0x%02x%02x\n",
tvp5150_read(c, TVP5150_VERT_LN_COUNT_MSB),
tvp5150_read(c, TVP5150_VERT_LN_COUNT_LSB));
printk("tvp5150: Interrupt status register B = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_STATUS_REG_B));
printk("tvp5150: Interrupt active register B = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_ACTIVE_REG_B));
printk("tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
tvp5150_read(c, TVP5150_STATUS_REG_1),
tvp5150_read(c, TVP5150_STATUS_REG_2),
tvp5150_read(c, TVP5150_STATUS_REG_3),
tvp5150_read(c, TVP5150_STATUS_REG_4),
tvp5150_read(c, TVP5150_STATUS_REG_5));
dump_reg_range(c,"Teletext filter 1", TVP5150_TELETEXT_FIL1_INI,
TVP5150_TELETEXT_FIL1_END,8);
dump_reg_range(c,"Teletext filter 2", TVP5150_TELETEXT_FIL2_INI,
TVP5150_TELETEXT_FIL2_END,8);
printk("tvp5150: Teletext filter enable = 0x%02x\n",
tvp5150_read(c, TVP5150_TELETEXT_FIL_ENA));
printk("tvp5150: Interrupt status register A = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_STATUS_REG_A));
printk("tvp5150: Interrupt enable register A = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_ENABLE_REG_A));
printk("tvp5150: Interrupt configuration = 0x%02x\n",
tvp5150_read(c, TVP5150_INT_CONF));
printk("tvp5150: VDP status register = 0x%02x\n",
tvp5150_read(c, TVP5150_VDP_STATUS_REG));
printk("tvp5150: FIFO word count = 0x%02x\n",
tvp5150_read(c, TVP5150_FIFO_WORD_COUNT));
printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
tvp5150_read(c, TVP5150_FIFO_INT_THRESHOLD));
printk("tvp5150: FIFO reset = 0x%02x\n",
tvp5150_read(c, TVP5150_FIFO_RESET));
printk("tvp5150: Line number interrupt = 0x%02x\n",
tvp5150_read(c, TVP5150_LINE_NUMBER_INT));
printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
tvp5150_read(c, TVP5150_PIX_ALIGN_REG_HIGH),
tvp5150_read(c, TVP5150_PIX_ALIGN_REG_LOW));
printk("tvp5150: FIFO output control = 0x%02x\n",
tvp5150_read(c, TVP5150_FIFO_OUT_CTRL));
printk("tvp5150: Full field enable = 0x%02x\n",
tvp5150_read(c, TVP5150_FULL_FIELD_ENA));
printk("tvp5150: Full field mode register = 0x%02x\n",
tvp5150_read(c, TVP5150_FULL_FIELD_MODE_REG));
dump_reg_range(c,"CC data", TVP5150_CC_DATA_INI,
TVP5150_CC_DATA_END,8);
dump_reg_range(c,"WSS data", TVP5150_WSS_DATA_INI,
TVP5150_WSS_DATA_END,8);
dump_reg_range(c,"VPS data", TVP5150_VPS_DATA_INI,
TVP5150_VPS_DATA_END,8);
dump_reg_range(c,"VITC data", TVP5150_VITC_DATA_INI,
TVP5150_VITC_DATA_END,10);
dump_reg_range(c,"Line mode", TVP5150_LINE_MODE_INI,
TVP5150_LINE_MODE_END,8);
}
/****************************************************************************
Basic functions
****************************************************************************/
static inline void tvp5150_selmux(struct i2c_client *c)
{
int opmode=0;
struct tvp5150 *decoder = i2c_get_clientdata(c);
int input = 0;
if ((decoder->route.output & TVP5150_BLACK_SCREEN) || !decoder->enable)
input = 8;
switch (decoder->route.input) {
case TVP5150_COMPOSITE1:
input |= 2;
/* fall through */
case TVP5150_COMPOSITE0:
opmode=0x30; /* TV Mode */
break;
case TVP5150_SVIDEO:
default:
input |= 1;
opmode=0; /* Auto Mode */
break;
}
tvp5150_dbg( 1, "Selecting video route: route input=%i, output=%i "
"=> tvp5150 input=%i, opmode=%i\n",
decoder->route.input,decoder->route.output,
input, opmode );
tvp5150_write(c, TVP5150_OP_MODE_CTL, opmode);
tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, input);
};
struct i2c_reg_value {
unsigned char reg;
unsigned char value;
};
/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_default[] = {
{ /* 0x00 */
TVP5150_VD_IN_SRC_SEL_1,0x00
},
{ /* 0x01 */
TVP5150_ANAL_CHL_CTL,0x15
},
{ /* 0x02 */
TVP5150_OP_MODE_CTL,0x00
},
{ /* 0x03 */
TVP5150_MISC_CTL,0x01
},
{ /* 0x06 */
TVP5150_COLOR_KIL_THSH_CTL,0x10
},
{ /* 0x07 */
TVP5150_LUMA_PROC_CTL_1,0x60
},
{ /* 0x08 */
TVP5150_LUMA_PROC_CTL_2,0x00
},
{ /* 0x09 */
TVP5150_BRIGHT_CTL,0x80
},
{ /* 0x0a */
TVP5150_SATURATION_CTL,0x80
},
{ /* 0x0b */
TVP5150_HUE_CTL,0x00
},
{ /* 0x0c */
TVP5150_CONTRAST_CTL,0x80
},
{ /* 0x0d */
TVP5150_DATA_RATE_SEL,0x47
},
{ /* 0x0e */
TVP5150_LUMA_PROC_CTL_3,0x00
},
{ /* 0x0f */
TVP5150_CONF_SHARED_PIN,0x08
},
{ /* 0x11 */
TVP5150_ACT_VD_CROP_ST_MSB,0x00
},
{ /* 0x12 */
TVP5150_ACT_VD_CROP_ST_LSB,0x00
},
{ /* 0x13 */
TVP5150_ACT_VD_CROP_STP_MSB,0x00
},
{ /* 0x14 */
TVP5150_ACT_VD_CROP_STP_LSB,0x00
},
{ /* 0x15 */
TVP5150_GENLOCK,0x01
},
{ /* 0x16 */
TVP5150_HORIZ_SYNC_START,0x80
},
{ /* 0x18 */
TVP5150_VERT_BLANKING_START,0x00
},
{ /* 0x19 */
TVP5150_VERT_BLANKING_STOP,0x00
},
{ /* 0x1a */
TVP5150_CHROMA_PROC_CTL_1,0x0c
},
{ /* 0x1b */
TVP5150_CHROMA_PROC_CTL_2,0x14
},
{ /* 0x1c */
TVP5150_INT_RESET_REG_B,0x00
},
{ /* 0x1d */
TVP5150_INT_ENABLE_REG_B,0x00
},
{ /* 0x1e */
TVP5150_INTT_CONFIG_REG_B,0x00
},
{ /* 0x28 */
TVP5150_VIDEO_STD,0x00
},
{ /* 0x2e */
TVP5150_MACROVISION_ON_CTR,0x0f
},
{ /* 0x2f */
TVP5150_MACROVISION_OFF_CTR,0x01
},
{ /* 0xbb */
TVP5150_TELETEXT_FIL_ENA,0x00
},
{ /* 0xc0 */
TVP5150_INT_STATUS_REG_A,0x00
},
{ /* 0xc1 */
TVP5150_INT_ENABLE_REG_A,0x00
},
{ /* 0xc2 */
TVP5150_INT_CONF,0x04
},
{ /* 0xc8 */
TVP5150_FIFO_INT_THRESHOLD,0x80
},
{ /* 0xc9 */
TVP5150_FIFO_RESET,0x00
},
{ /* 0xca */
TVP5150_LINE_NUMBER_INT,0x00
},
{ /* 0xcb */
TVP5150_PIX_ALIGN_REG_LOW,0x4e
},
{ /* 0xcc */
TVP5150_PIX_ALIGN_REG_HIGH,0x00
},
{ /* 0xcd */
TVP5150_FIFO_OUT_CTRL,0x01
},
{ /* 0xcf */
TVP5150_FULL_FIELD_ENA,0x00
},
{ /* 0xd0 */
TVP5150_LINE_MODE_INI,0x00
},
{ /* 0xfc */
TVP5150_FULL_FIELD_MODE_REG,0x7f
},
{ /* end of data */
0xff,0xff
}
};
/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_enable[] = {
{
TVP5150_CONF_SHARED_PIN, 2
},{ /* Automatic offset and AGC enabled */
TVP5150_ANAL_CHL_CTL, 0x15
},{ /* Activate YCrCb output 0x9 or 0xd ? */
TVP5150_MISC_CTL, 0x6f
},{ /* Activates video std autodetection for all standards */
TVP5150_AUTOSW_MSK, 0x0
},{ /* Default format: 0x47. For 4:2:2: 0x40 */
TVP5150_DATA_RATE_SEL, 0x47
},{
TVP5150_CHROMA_PROC_CTL_1, 0x0c
},{
TVP5150_CHROMA_PROC_CTL_2, 0x54
},{ /* Non documented, but initialized on WinTV USB2 */
0x27, 0x20
},{
0xff,0xff
}
};
struct tvp5150_vbi_type {
unsigned int vbi_type;
unsigned int ini_line;
unsigned int end_line;
unsigned int by_field :1;
};
struct i2c_vbi_ram_value {
u16 reg;
struct tvp5150_vbi_type type;
unsigned char values[16];
};
/* This struct have the values for each supported VBI Standard
* by
tvp5150_vbi_types should follow the same order as vbi_ram_default
* value 0 means rom position 0x10, value 1 means rom position 0x30
* and so on. There are 16 possible locations from 0 to 15.
*/
static struct i2c_vbi_ram_value vbi_ram_default[] =
{
/* FIXME: Current api doesn't handle all VBI types, those not
yet supported are placed under #if 0 */
#if 0
{0x010, /* Teletext, SECAM, WST System A */
{V4L2_SLICED_TELETEXT_SECAM,6,23,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
#endif
{0x030, /* Teletext, PAL, WST System B */
{V4L2_SLICED_TELETEXT_B,6,22,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
#if 0
{0x050, /* Teletext, PAL, WST System C */
{V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
{0x070, /* Teletext, NTSC, WST System B */
{V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
{0x090, /* Tetetext, NTSC NABTS System C */
{V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
},
{0x0b0, /* Teletext, NTSC-J, NABTS System D */
{V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
{0x0d0, /* Closed Caption, PAL/SECAM */
{V4L2_SLICED_CAPTION_625,22,22,1},
{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
},
#endif
{0x0f0, /* Closed Caption, NTSC */
{V4L2_SLICED_CAPTION_525,21,21,1},
{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
},
{0x110, /* Wide Screen Signal, PAL/SECAM */
{V4L2_SLICED_WSS_625,23,23,1},
{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
},
#if 0
{0x130, /* Wide Screen Signal, NTSC C */
{V4L2_SLICED_WSS_525,20,20,1},
{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
},
{0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
{V4l2_SLICED_VITC_625,6,22,0},
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
},
{0x170, /* Vertical Interval Timecode (VITC), NTSC */
{V4l2_SLICED_VITC_525,10,20,0},
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
},
#endif
{0x190, /* Video Program System (VPS), PAL */
{V4L2_SLICED_VPS,16,16,0},
{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
},
/* 0x1d0 User programmable */
/* End of struct */
{ (u16)-1 }
};
static int tvp5150_write_inittab(struct i2c_client *c,
const struct i2c_reg_value *regs)
{
while (regs->reg != 0xff) {
tvp5150_write(c, regs->reg, regs->value);
regs++;
}
return 0;
}
static int tvp5150_vdp_init(struct i2c_client *c,
const struct i2c_vbi_ram_value *regs)
{
unsigned int i;
/* Disable Full Field */
tvp5150_write(c, TVP5150_FULL_FIELD_ENA, 0);
/* Before programming, Line mode should be at 0xff */
for (i=TVP5150_LINE_MODE_INI; i<=TVP5150_LINE_MODE_END; i++)
tvp5150_write(c, i, 0xff);
/* Load Ram Table */
while (regs->reg != (u16)-1 ) {
tvp5150_write(c, TVP5150_CONF_RAM_ADDR_HIGH,regs->reg>>8);
tvp5150_write(c, TVP5150_CONF_RAM_ADDR_LOW,regs->reg);
for (i=0;i<16;i++)
tvp5150_write(c, TVP5150_VDP_CONF_RAM_DATA,regs->values[i]);
regs++;
}
return 0;
}
/* Fills VBI capabilities based on i2c_vbi_ram_value struct */
static void tvp5150_vbi_get_cap(const struct i2c_vbi_ram_value *regs,
struct v4l2_sliced_vbi_cap *cap)
{
int line;
memset(cap, 0, sizeof *cap);
while (regs->reg != (u16)-1 ) {
for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
cap->service_lines[0][line] |= regs->type.vbi_type;
}
cap->service_set |= regs->type.vbi_type;
regs++;
}
}
/* Set vbi processing
* type - one of tvp5150_vbi_types
* line - line to gather data
* fields: bit 0 field1, bit 1, field2
* flags (default=0xf0) is a bitmask, were set means:
* bit 7: enable filtering null bytes on CC
* bit 6: send data also to FIFO
* bit 5: don't allow data with errors on FIFO
* bit 4: enable ECC when possible
* pix_align = pix alignment:
* LSB = field1
* MSB = field2
*/
static int tvp5150_set_vbi(struct i2c_client *c,
const struct i2c_vbi_ram_value *regs,
unsigned int type,u8 flags, int line,
const int fields)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
v4l2_std_id std=decoder->norm;
u8 reg;
int pos=0;
if (std == V4L2_STD_ALL) {
tvp5150_err("VBI can't be configured without knowing number of lines\n");
return 0;
} else if (std && V4L2_STD_625_50) {
/* Don't follow NTSC Line number convension */
line += 3;
}
if (line<6||line>27)
return 0;
while (regs->reg != (u16)-1 ) {
if ((type & regs->type.vbi_type) &&
(line>=regs->type.ini_line) &&
(line<=regs->type.end_line)) {
type=regs->type.vbi_type;
break;
}
regs++;
pos++;
}
if (regs->reg == (u16)-1)
return 0;
type=pos | (flags & 0xf0);
reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
if (fields&1) {
tvp5150_write(c, reg, type);
}
if (fields&2) {
tvp5150_write(c, reg+1, type);
}
return type;
}
static int tvp5150_get_vbi(struct i2c_client *c,
const struct i2c_vbi_ram_value *regs, int line)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
v4l2_std_id std=decoder->norm;
u8 reg;
int pos, type=0;
if (std == V4L2_STD_ALL) {
tvp5150_err("VBI can't be configured without knowing number of lines\n");
return 0;
} else if (std && V4L2_STD_625_50) {
/* Don't follow NTSC Line number convension */
line += 3;
}
if (line<6||line>27)
return 0;
reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
pos=tvp5150_read(c, reg)&0x0f;
if (pos<0x0f)
type=regs[pos].type.vbi_type;
pos=tvp5150_read(c, reg+1)&0x0f;
if (pos<0x0f)
type|=regs[pos].type.vbi_type;
return type;
}
static int tvp5150_set_std(struct i2c_client *c, v4l2_std_id std)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
int fmt=0;
decoder->norm=std;
/* First tests should be against specific std */
if (std == V4L2_STD_ALL) {
fmt=0; /* Autodetect mode */
} else if (std & V4L2_STD_NTSC_443) {
fmt=0xa;
} else if (std & V4L2_STD_PAL_M) {
fmt=0x6;
} else if (std & (V4L2_STD_PAL_N| V4L2_STD_PAL_Nc)) {
fmt=0x8;
} else {
/* Then, test against generic ones */
if (std & V4L2_STD_NTSC) {
fmt=0x2;
} else if (std & V4L2_STD_PAL) {
fmt=0x4;
} else if (std & V4L2_STD_SECAM) {
fmt=0xc;
}
}
tvp5150_dbg(1,"Set video std register to %d.\n",fmt);
tvp5150_write(c, TVP5150_VIDEO_STD, fmt);
return 0;
}
static inline void tvp5150_reset(struct i2c_client *c)
{
u8 msb_id, lsb_id, msb_rom, lsb_rom;
struct tvp5150 *decoder = i2c_get_clientdata(c);
msb_id=tvp5150_read(c,TVP5150_MSB_DEV_ID);
lsb_id=tvp5150_read(c,TVP5150_LSB_DEV_ID);
msb_rom=tvp5150_read(c,TVP5150_ROM_MAJOR_VER);
lsb_rom=tvp5150_read(c,TVP5150_ROM_MINOR_VER);
if ((msb_rom==4)&&(lsb_rom==0)) { /* Is TVP5150AM1 */
tvp5150_info("tvp%02x%02xam1 detected.\n",msb_id, lsb_id);
/* ITU-T BT.656.4 timing */
tvp5150_write(c,TVP5150_REV_SELECT,0);
} else {
if ((msb_rom==3)||(lsb_rom==0x21)) { /* Is TVP5150A */
tvp5150_info("tvp%02x%02xa detected.\n",msb_id, lsb_id);
} else {
tvp5150_info("*** unknown tvp%02x%02x chip detected.\n",msb_id,lsb_id);
tvp5150_info("*** Rom ver is %d.%d\n",msb_rom,lsb_rom);
}
}
/* Initializes TVP5150 to its default values */
tvp5150_write_inittab(c, tvp5150_init_default);
/* Initializes VDP registers */
tvp5150_vdp_init(c, vbi_ram_default);
/* Selects decoder input */
tvp5150_selmux(c);
/* Initializes TVP5150 to stream enabled values */
tvp5150_write_inittab(c, tvp5150_init_enable);
/* Initialize image preferences */
tvp5150_write(c, TVP5150_BRIGHT_CTL, decoder->bright >> 8);
tvp5150_write(c, TVP5150_CONTRAST_CTL, decoder->contrast >> 8);
tvp5150_write(c, TVP5150_SATURATION_CTL, decoder->contrast >> 8);
tvp5150_write(c, TVP5150_HUE_CTL, (decoder->hue - 32768) >> 8);
tvp5150_set_std(c, decoder->norm);
};
static int tvp5150_get_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/* struct tvp5150 *decoder = i2c_get_clientdata(c); */
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = tvp5150_read(c, TVP5150_BRIGHT_CTL);
return 0;
case V4L2_CID_CONTRAST:
ctrl->value = tvp5150_read(c, TVP5150_CONTRAST_CTL);
return 0;
case V4L2_CID_SATURATION:
ctrl->value = tvp5150_read(c, TVP5150_SATURATION_CTL);
return 0;
case V4L2_CID_HUE:
ctrl->value = tvp5150_read(c, TVP5150_HUE_CTL);
return 0;
}
return -EINVAL;
}
static int tvp5150_set_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/* struct tvp5150 *decoder = i2c_get_clientdata(c); */
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
tvp5150_write(c, TVP5150_BRIGHT_CTL, ctrl->value);
return 0;
case V4L2_CID_CONTRAST:
tvp5150_write(c, TVP5150_CONTRAST_CTL, ctrl->value);
return 0;
case V4L2_CID_SATURATION:
tvp5150_write(c, TVP5150_SATURATION_CTL, ctrl->value);
return 0;
case V4L2_CID_HUE:
tvp5150_write(c, TVP5150_HUE_CTL, ctrl->value);
return 0;
}
return -EINVAL;
}
/****************************************************************************
I2C Command
****************************************************************************/
static int tvp5150_command(struct i2c_client *c,
unsigned int cmd, void *arg)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
switch (cmd) {
case 0:
case VIDIOC_INT_RESET:
tvp5150_reset(c);
break;
case VIDIOC_INT_G_VIDEO_ROUTING:
{
struct v4l2_routing *route = arg;
*route = decoder->route;
break;
}
case VIDIOC_INT_S_VIDEO_ROUTING:
{
struct v4l2_routing *route = arg;
decoder->route = *route;
tvp5150_selmux(c);
break;
}
case VIDIOC_S_STD:
if (decoder->norm == *(v4l2_std_id *)arg)
break;
return tvp5150_set_std(c, *(v4l2_std_id *)arg);
case VIDIOC_G_STD:
*(v4l2_std_id *)arg = decoder->norm;
break;
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *cap = arg;
tvp5150_dbg(1, "VIDIOC_G_SLICED_VBI_CAP\n");
tvp5150_vbi_get_cap(vbi_ram_default, cap);
break;
}
case VIDIOC_S_FMT:
{
struct v4l2_format *fmt;
struct v4l2_sliced_vbi_format *svbi;
int i;
fmt = arg;
if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
return -EINVAL;
svbi = &fmt->fmt.sliced;
if (svbi->service_set != 0) {
for (i = 0; i <= 23; i++) {
svbi->service_lines[1][i] = 0;
svbi->service_lines[0][i]=tvp5150_set_vbi(c,
vbi_ram_default,
svbi->service_lines[0][i],0xf0,i,3);
}
/* Enables FIFO */
tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,1);
} else {
/* Disables FIFO*/
tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,0);
/* Disable Full Field */
tvp5150_write(c, TVP5150_FULL_FIELD_ENA, 0);
/* Disable Line modes */
for (i=TVP5150_LINE_MODE_INI; i<=TVP5150_LINE_MODE_END; i++)
tvp5150_write(c, i, 0xff);
}
break;
}
case VIDIOC_G_FMT:
{
struct v4l2_format *fmt;
struct v4l2_sliced_vbi_format *svbi;
int i, mask=0;
fmt = arg;
if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
return -EINVAL;
svbi = &fmt->fmt.sliced;
memset(svbi, 0, sizeof(*svbi));
for (i = 0; i <= 23; i++) {
svbi->service_lines[0][i]=tvp5150_get_vbi(c,
vbi_ram_default,i);
mask|=svbi->service_lines[0][i];
}
svbi->service_set=mask;
break;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
case VIDIOC_DBG_G_REGISTER:
case VIDIOC_DBG_S_REGISTER:
{
struct v4l2_register *reg = arg;
if (reg->i2c_id != I2C_DRIVERID_TVP5150)
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (cmd == VIDIOC_DBG_G_REGISTER)
reg->val = tvp5150_read(c, reg->reg & 0xff);
else
tvp5150_write(c, reg->reg & 0xff, reg->val & 0xff);
break;
}
#endif
case VIDIOC_LOG_STATUS:
dump_reg(c);
break;
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *vt = arg;
int status = tvp5150_read(c, 0x88);
vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
break;
}
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
int i;
tvp5150_dbg(1, "VIDIOC_QUERYCTRL called\n");
for (i = 0; i < ARRAY_SIZE(tvp5150_qctrl); i++)
if (qc->id && qc->id == tvp5150_qctrl[i].id) {
memcpy(qc, &(tvp5150_qctrl[i]),
sizeof(*qc));
return 0;
}
return -EINVAL;
}
case VIDIOC_G_CTRL:
{
struct v4l2_control *ctrl = arg;
tvp5150_dbg(1, "VIDIOC_G_CTRL called\n");
return tvp5150_get_ctrl(c, ctrl);
}
case VIDIOC_S_CTRL:
{
struct v4l2_control *ctrl = arg;
u8 i, n;
n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]);
for (i = 0; i < n; i++)
if (ctrl->id == tvp5150_qctrl[i].id) {
if (ctrl->value <
tvp5150_qctrl[i].minimum
|| ctrl->value >
tvp5150_qctrl[i].maximum)
return -ERANGE;
tvp5150_dbg(1,
"VIDIOC_S_CTRL: id=%d, value=%d\n",
ctrl->id, ctrl->value);
return tvp5150_set_ctrl(c, ctrl);
}
return -EINVAL;
}
default:
return -EINVAL;
}
return 0;
}
/****************************************************************************
I2C Client & Driver
****************************************************************************/
static struct i2c_driver driver;
static struct i2c_client client_template = {
.name = "(unset)",
.driver = &driver,
};
static int tvp5150_detect_client(struct i2c_adapter *adapter,
int address, int kind)
{
struct i2c_client *c;
struct tvp5150 *core;
int rv;
if (debug)
printk( KERN_INFO
"tvp5150.c: detecting tvp5150 client on address 0x%x\n",
address << 1);
client_template.adapter = adapter;
client_template.addr = address;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality
(adapter,
I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
return 0;
c = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (c == 0)
return -ENOMEM;
memcpy(c, &client_template, sizeof(struct i2c_client));
core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
if (core == 0) {
kfree(c);
return -ENOMEM;
}
i2c_set_clientdata(c, core);
rv = i2c_attach_client(c);
core->norm = V4L2_STD_ALL; /* Default is autodetect */
core->route.input = TVP5150_COMPOSITE1;
core->enable = 1;
core->bright = 32768;
core->contrast = 32768;
core->hue = 32768;
core->sat = 32768;
if (rv) {
kfree(c);
kfree(core);
return rv;
}
if (debug > 1)
dump_reg(c);
return 0;
}
static int tvp5150_attach_adapter(struct i2c_adapter *adapter)
{
if (debug)
printk( KERN_INFO
"tvp5150.c: starting probe for adapter %s (0x%x)\n",
adapter->name, adapter->id);
return i2c_probe(adapter, &addr_data, &tvp5150_detect_client);
}
static int tvp5150_detach_client(struct i2c_client *c)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
int err;
tvp5150_dbg(1,
"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
c->addr << 1);
err = i2c_detach_client(c);
if (err) {
return err;
}
kfree(decoder);
kfree(c);
return 0;
}
/* ----------------------------------------------------------------------- */
static struct i2c_driver driver = {
.driver = {
.name = "tvp5150",
},
.id = I2C_DRIVERID_TVP5150,
.attach_adapter = tvp5150_attach_adapter,
.detach_client = tvp5150_detach_client,
.command = tvp5150_command,
};
static int __init tvp5150_init(void)
{
return i2c_add_driver(&driver);
}
static void __exit tvp5150_exit(void)
{
i2c_del_driver(&driver);
}
module_init(tvp5150_init);
module_exit(tvp5150_exit);
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