Commit a637a114 authored by Ladislav Michl's avatar Ladislav Michl Committed by Ralf Baechle
Browse files

VINO driver version 0.0.5.

Second cut of the VINO / Indycam driver for the Silicon Graphics Indy,
much more feature complete and bug free.
parent a06d61c6
......@@ -27,15 +27,15 @@
#include "indycam.h"
//#define INDYCAM_DEBUG
#define INDYCAM_MODULE_VERSION "0.0.3"
#define INDYCAM_MODULE_VERSION "0.0.5"
MODULE_DESCRIPTION("SGI IndyCam driver");
MODULE_VERSION(INDYCAM_MODULE_VERSION);
MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
MODULE_LICENSE("GPL");
// #define INDYCAM_DEBUG
#ifdef INDYCAM_DEBUG
#define dprintk(x...) printk("IndyCam: " x);
#define indycam_regdump(client) indycam_regdump_debug(client)
......@@ -46,14 +46,14 @@ MODULE_LICENSE("GPL");
struct indycam {
struct i2c_client *client;
int version;
u8 version;
};
static struct i2c_driver i2c_driver_indycam;
static const unsigned char initseq[] = {
static const u8 initseq[] = {
INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */
INDYCAM_SHUTTER_DEFAULT, /* INDYCAM_SHUTTER */
INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */
INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */
0x00, /* INDYCAM_BRIGHTNESS (read-only) */
INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */
......@@ -64,12 +64,11 @@ static const unsigned char initseq[] = {
/* IndyCam register handling */
static int indycam_read_reg(struct i2c_client *client, unsigned char reg,
unsigned char *value)
static int indycam_read_reg(struct i2c_client *client, u8 reg, u8 *value)
{
int ret;
if (reg == INDYCAM_RESET) {
if (reg == INDYCAM_REG_RESET) {
dprintk("indycam_read_reg(): "
"skipping write-only register %d\n", reg);
*value = 0;
......@@ -77,24 +76,24 @@ static int indycam_read_reg(struct i2c_client *client, unsigned char reg,
}
ret = i2c_smbus_read_byte_data(client, reg);
if (ret < 0) {
printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
"register = 0x%02x\n", reg);
return ret;
}
*value = (unsigned char)ret;
*value = (u8)ret;
return 0;
}
static int indycam_write_reg(struct i2c_client *client, unsigned char reg,
unsigned char value)
static int indycam_write_reg(struct i2c_client *client, u8 reg, u8 value)
{
int err;
if ((reg == INDYCAM_BRIGHTNESS)
|| (reg == INDYCAM_VERSION)) {
if ((reg == INDYCAM_REG_BRIGHTNESS)
|| (reg == INDYCAM_REG_VERSION)) {
dprintk("indycam_write_reg(): "
"skipping read-only register %d\n", reg);
return 0;
......@@ -102,6 +101,7 @@ static int indycam_write_reg(struct i2c_client *client, unsigned char reg,
dprintk("Writing Reg %d = 0x%02x\n", reg, value);
err = i2c_smbus_write_byte_data(client, reg, value);
if (err) {
printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
"register = 0x%02x, value = 0x%02x\n", reg, value);
......@@ -109,13 +109,12 @@ static int indycam_write_reg(struct i2c_client *client, unsigned char reg,
return err;
}
static int indycam_write_block(struct i2c_client *client, unsigned char reg,
unsigned char length, unsigned char *data)
static int indycam_write_block(struct i2c_client *client, u8 reg,
u8 length, u8 *data)
{
unsigned char i;
int err;
int i, err;
for (i = reg; i < length; i++) {
for (i = 0; i < length; i++) {
err = indycam_write_reg(client, reg + i, data[i]);
if (err)
return err;
......@@ -130,7 +129,7 @@ static int indycam_write_block(struct i2c_client *client, unsigned char reg,
static void indycam_regdump_debug(struct i2c_client *client)
{
int i;
unsigned char val;
u8 val;
for (i = 0; i < 9; i++) {
indycam_read_reg(client, i, &val);
......@@ -139,76 +138,144 @@ static void indycam_regdump_debug(struct i2c_client *client)
}
#endif
static int indycam_get_controls(struct i2c_client *client,
struct indycam_control *ctrl)
static int indycam_get_control(struct i2c_client *client,
struct indycam_control *ctrl)
{
unsigned char ctrl_reg;
indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
ctrl->agc = (ctrl_reg & INDYCAM_CONTROL_AGCENA)
? INDYCAM_VALUE_ENABLED
: INDYCAM_VALUE_DISABLED;
ctrl->awb = (ctrl_reg & INDYCAM_CONTROL_AWBCTL)
? INDYCAM_VALUE_ENABLED
: INDYCAM_VALUE_DISABLED;
indycam_read_reg(client, INDYCAM_SHUTTER,
(unsigned char *)&ctrl->shutter);
indycam_read_reg(client, INDYCAM_GAIN,
(unsigned char *)&ctrl->gain);
indycam_read_reg(client, INDYCAM_RED_BALANCE,
(unsigned char *)&ctrl->red_balance);
indycam_read_reg(client, INDYCAM_BLUE_BALANCE,
(unsigned char *)&ctrl->blue_balance);
indycam_read_reg(client, INDYCAM_RED_SATURATION,
(unsigned char *)&ctrl->red_saturation);
indycam_read_reg(client, INDYCAM_BLUE_SATURATION,
(unsigned char *)&ctrl->blue_saturation);
indycam_read_reg(client, INDYCAM_GAMMA,
(unsigned char *)&ctrl->gamma);
struct indycam *camera = i2c_get_clientdata(client);
u8 reg;
int ret = 0;
switch (ctrl->type) {
case INDYCAM_CONTROL_AGC:
case INDYCAM_CONTROL_AWB:
ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, &reg);
if (ret)
return -EIO;
if (ctrl->type == INDYCAM_CONTROL_AGC)
ctrl->value = (reg & INDYCAM_CONTROL_AGCENA)
? 1 : 0;
else
ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL)
? 1 : 0;
break;
case INDYCAM_CONTROL_SHUTTER:
ret = indycam_read_reg(client, INDYCAM_REG_SHUTTER, &reg);
if (ret)
return -EIO;
ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1);
break;
case INDYCAM_CONTROL_GAIN:
ret = indycam_read_reg(client, INDYCAM_REG_GAIN, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
break;
case INDYCAM_CONTROL_RED_BALANCE:
ret = indycam_read_reg(client, INDYCAM_REG_RED_BALANCE, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
break;
case INDYCAM_CONTROL_BLUE_BALANCE:
ret = indycam_read_reg(client, INDYCAM_REG_BLUE_BALANCE, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
break;
case INDYCAM_CONTROL_RED_SATURATION:
ret = indycam_read_reg(client,
INDYCAM_REG_RED_SATURATION, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
break;
case INDYCAM_CONTROL_BLUE_SATURATION:
ret = indycam_read_reg(client,
INDYCAM_REG_BLUE_SATURATION, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
break;
case INDYCAM_CONTROL_GAMMA:
if (camera->version == CAMERA_VERSION_MOOSE) {
ret = indycam_read_reg(client,
INDYCAM_REG_GAMMA, &reg);
if (ret)
return -EIO;
ctrl->value = (s32)reg;
} else {
ctrl->value = INDYCAM_GAMMA_DEFAULT;
}
break;
default:
ret = -EINVAL;
}
return 0;
return ret;
}
static int indycam_set_controls(struct i2c_client *client,
struct indycam_control *ctrl)
static int indycam_set_control(struct i2c_client *client,
struct indycam_control *ctrl)
{
unsigned char ctrl_reg;
struct indycam *camera = i2c_get_clientdata(client);
u8 reg;
int ret = 0;
switch (ctrl->type) {
case INDYCAM_CONTROL_AGC:
case INDYCAM_CONTROL_AWB:
ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, &reg);
if (ret)
break;
indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
if (ctrl->agc != INDYCAM_VALUE_UNCHANGED) {
if (ctrl->agc)
ctrl_reg |= INDYCAM_CONTROL_AGCENA;
else
ctrl_reg &= ~INDYCAM_CONTROL_AGCENA;
}
if (ctrl->awb != INDYCAM_VALUE_UNCHANGED) {
if (ctrl->awb)
ctrl_reg |= INDYCAM_CONTROL_AWBCTL;
else
ctrl_reg &= ~INDYCAM_CONTROL_AWBCTL;
if (ctrl->type == INDYCAM_CONTROL_AGC) {
if (ctrl->value)
reg |= INDYCAM_CONTROL_AGCENA;
else
reg &= ~INDYCAM_CONTROL_AGCENA;
} else {
if (ctrl->value)
reg |= INDYCAM_CONTROL_AWBCTL;
else
reg &= ~INDYCAM_CONTROL_AWBCTL;
}
ret = indycam_write_reg(client, INDYCAM_REG_CONTROL, reg);
break;
case INDYCAM_CONTROL_SHUTTER:
reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1);
ret = indycam_write_reg(client, INDYCAM_REG_SHUTTER, reg);
break;
case INDYCAM_CONTROL_GAIN:
ret = indycam_write_reg(client, INDYCAM_REG_GAIN, ctrl->value);
break;
case INDYCAM_CONTROL_RED_BALANCE:
ret = indycam_write_reg(client, INDYCAM_REG_RED_BALANCE,
ctrl->value);
break;
case INDYCAM_CONTROL_BLUE_BALANCE:
ret = indycam_write_reg(client, INDYCAM_REG_BLUE_BALANCE,
ctrl->value);
break;
case INDYCAM_CONTROL_RED_SATURATION:
ret = indycam_write_reg(client, INDYCAM_REG_RED_SATURATION,
ctrl->value);
break;
case INDYCAM_CONTROL_BLUE_SATURATION:
ret = indycam_write_reg(client, INDYCAM_REG_BLUE_SATURATION,
ctrl->value);
break;
case INDYCAM_CONTROL_GAMMA:
if (camera->version == CAMERA_VERSION_MOOSE) {
ret = indycam_write_reg(client, INDYCAM_REG_GAMMA,
ctrl->value);
}
break;
default:
ret = -EINVAL;
}
indycam_write_reg(client, INDYCAM_CONTROL, ctrl_reg);
if (ctrl->shutter >= 0)
indycam_write_reg(client, INDYCAM_SHUTTER, ctrl->shutter);
if (ctrl->gain >= 0)
indycam_write_reg(client, INDYCAM_GAIN, ctrl->gain);
if (ctrl->red_balance >= 0)
indycam_write_reg(client, INDYCAM_RED_BALANCE,
ctrl->red_balance);
if (ctrl->blue_balance >= 0)
indycam_write_reg(client, INDYCAM_BLUE_BALANCE,
ctrl->blue_balance);
if (ctrl->red_saturation >= 0)
indycam_write_reg(client, INDYCAM_RED_SATURATION,
ctrl->red_saturation);
if (ctrl->blue_saturation >= 0)
indycam_write_reg(client, INDYCAM_BLUE_SATURATION,
ctrl->blue_saturation);
if (ctrl->gamma >= 0)
indycam_write_reg(client, INDYCAM_GAMMA, ctrl->gamma);
return 0;
return ret;
}
/* I2C-interface */
......@@ -247,7 +314,8 @@ static int indycam_attach(struct i2c_adapter *adap, int addr, int kind)
if (err)
goto out_free_camera;
camera->version = i2c_smbus_read_byte_data(client, INDYCAM_VERSION);
camera->version = i2c_smbus_read_byte_data(client,
INDYCAM_REG_VERSION);
if (camera->version != CAMERA_VERSION_INDY &&
camera->version != CAMERA_VERSION_MOOSE) {
err = -ENODEV;
......@@ -260,8 +328,7 @@ static int indycam_attach(struct i2c_adapter *adap, int addr, int kind)
indycam_regdump(client);
// initialize
err = indycam_write_block(client, 0, sizeof(initseq),
(unsigned char *)&initseq);
err = indycam_write_block(client, 0, sizeof(initseq), (u8 *)&initseq);
if (err) {
printk(KERN_ERR "IndyCam initalization failed\n");
err = -EIO;
......@@ -271,11 +338,10 @@ static int indycam_attach(struct i2c_adapter *adap, int addr, int kind)
indycam_regdump(client);
// white balance
err = indycam_write_reg(client, INDYCAM_CONTROL,
err = indycam_write_reg(client, INDYCAM_REG_CONTROL,
INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
if (err) {
printk(KERN_ERR "IndyCam white balance "
"initialization failed\n");
printk(KERN_ERR "IndyCam: White balancing camera failed\n");
err = -EIO;
goto out_detach_client;
}
......@@ -371,13 +437,11 @@ static int indycam_command(struct i2c_client *client, unsigned int cmd,
/* TODO: convert values for indycam_set_controls() */
break;
}
case DECODER_INDYCAM_GET_CONTROLS: {
struct indycam_control *ctrl = arg;
indycam_get_controls(client, ctrl);
case DECODER_INDYCAM_GET_CONTROL: {
return indycam_get_control(client, arg);
}
case DECODER_INDYCAM_SET_CONTROLS: {
struct indycam_control *ctrl = arg;
indycam_set_controls(client, ctrl);
case DECODER_INDYCAM_SET_CONTROL: {
return indycam_set_control(client, arg);
}
default:
return -EINVAL;
......@@ -388,12 +452,12 @@ static int indycam_command(struct i2c_client *client, unsigned int cmd,
static struct i2c_driver i2c_driver_indycam = {
.owner = THIS_MODULE,
.name = "indycam",
.id = I2C_DRIVERID_INDYCAM,
.flags = I2C_DF_NOTIFY,
.name = "indycam",
.id = I2C_DRIVERID_INDYCAM,
.flags = I2C_DF_NOTIFY,
.attach_adapter = indycam_probe,
.detach_client = indycam_detach,
.command = indycam_command,
.detach_client = indycam_detach,
.command = indycam_command,
};
static int __init indycam_init(void)
......
......@@ -22,21 +22,21 @@
#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
/* Register bus addresses */
#define INDYCAM_CONTROL 0x00
#define INDYCAM_SHUTTER 0x01
#define INDYCAM_GAIN 0x02
#define INDYCAM_BRIGHTNESS 0x03 /* read-only */
#define INDYCAM_RED_BALANCE 0x04
#define INDYCAM_BLUE_BALANCE 0x05
#define INDYCAM_RED_SATURATION 0x06
#define INDYCAM_BLUE_SATURATION 0x07
#define INDYCAM_GAMMA 0x08
#define INDYCAM_VERSION 0x0e /* read-only */
#define INDYCAM_RESET 0x0f /* write-only */
#define INDYCAM_LED 0x46
#define INDYCAM_ORIENTATION 0x47
#define INDYCAM_BUTTON 0x48
#define INDYCAM_REG_CONTROL 0x00
#define INDYCAM_REG_SHUTTER 0x01
#define INDYCAM_REG_GAIN 0x02
#define INDYCAM_REG_BRIGHTNESS 0x03 /* read-only */
#define INDYCAM_REG_RED_BALANCE 0x04
#define INDYCAM_REG_BLUE_BALANCE 0x05
#define INDYCAM_REG_RED_SATURATION 0x06
#define INDYCAM_REG_BLUE_SATURATION 0x07
#define INDYCAM_REG_GAMMA 0x08
#define INDYCAM_REG_VERSION 0x0e /* read-only */
#define INDYCAM_REG_RESET 0x0f /* write-only */
#define INDYCAM_REG_LED 0x46
#define INDYCAM_REG_ORIENTATION 0x47
#define INDYCAM_REG_BUTTON 0x48
/* Field definitions of registers */
#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
......@@ -59,13 +59,14 @@
#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
#define INDYCAM_BUTTON_RELEASED 0x10
/* Values for controls */
#define INDYCAM_SHUTTER_MIN 0x00
#define INDYCAM_SHUTTER_MAX 0xff
#define INDYCAM_GAIN_MIN 0x00
#define INDYCAM_GAIN_MAX 0xff
#define INDYCAM_RED_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_RED_BALANCE_MAX 0xff
#define INDYCAM_BLUE_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_RED_BALANCE_MIN 0x00
#define INDYCAM_RED_BALANCE_MAX 0xff
#define INDYCAM_BLUE_BALANCE_MIN 0x00
#define INDYCAM_BLUE_BALANCE_MAX 0xff
#define INDYCAM_RED_SATURATION_MIN 0x00
#define INDYCAM_RED_SATURATION_MAX 0xff
......@@ -74,34 +75,9 @@
#define INDYCAM_GAMMA_MIN 0x00
#define INDYCAM_GAMMA_MAX 0xff
/* Driver interface definitions */
#define INDYCAM_VALUE_ENABLED 1
#define INDYCAM_VALUE_DISABLED 0
#define INDYCAM_VALUE_UNCHANGED -1
/* When setting controls, a value of -1 leaves the control unchanged. */
struct indycam_control {
int agc; /* boolean */
int awb; /* boolean */
int shutter;
int gain;
int red_balance;
int blue_balance;
int red_saturation;
int blue_saturation;
int gamma;
};
#define DECODER_INDYCAM_GET_CONTROLS _IOR('d', 193, struct indycam_control)
#define DECODER_INDYCAM_SET_CONTROLS _IOW('d', 194, struct indycam_control)
/* Default values for controls */
#define INDYCAM_AGC_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_AWB_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_SHUTTER_DEFAULT INDYCAM_SHUTTER_60
#define INDYCAM_AGC_DEFAULT 1
#define INDYCAM_AWB_DEFAULT 0
#define INDYCAM_SHUTTER_DEFAULT 0xff
#define INDYCAM_GAIN_DEFAULT 0x80
#define INDYCAM_RED_BALANCE_DEFAULT 0x18
#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
......@@ -109,4 +85,24 @@ struct indycam_control {
#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
#define INDYCAM_GAMMA_DEFAULT 0x80
/* Driver interface definitions */
#define INDYCAM_CONTROL_AGC 0 /* boolean */
#define INDYCAM_CONTROL_AWB 1 /* boolean */
#define INDYCAM_CONTROL_SHUTTER 2
#define INDYCAM_CONTROL_GAIN 3
#define INDYCAM_CONTROL_RED_BALANCE 4
#define INDYCAM_CONTROL_BLUE_BALANCE 5
#define INDYCAM_CONTROL_RED_SATURATION 6
#define INDYCAM_CONTROL_BLUE_SATURATION 7
#define INDYCAM_CONTROL_GAMMA 8
struct indycam_control {
u8 type;
s32 value;
};
#define DECODER_INDYCAM_GET_CONTROL _IOR('d', 193, struct indycam_control)
#define DECODER_INDYCAM_SET_CONTROL _IOW('d', 194, struct indycam_control)
#endif
......@@ -26,71 +26,95 @@
#include "saa7191.h"
#define SAA7191_MODULE_VERSION "0.0.3"
#define SAA7191_MODULE_VERSION "0.0.5"
MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
MODULE_VERSION(SAA7191_MODULE_VERSION);
MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
MODULE_LICENSE("GPL");
// #define SAA7191_DEBUG
#ifdef SAA7191_DEBUG
#define dprintk(x...) printk("SAA7191: " x);
#else
#define dprintk(x...)
#endif
#define SAA7191_SYNC_COUNT 30
#define SAA7191_SYNC_DELAY 100 /* milliseconds */
struct saa7191 {
struct i2c_client *client;
/* the register values are stored here as the actual
* I2C-registers are write-only */
unsigned char reg[25];
u8 reg[25];
unsigned char norm;
unsigned char input;
int input;
int norm;
};
static struct i2c_driver i2c_driver_saa7191;
static const unsigned char initseq[] = {
static const u8 initseq[] = {
0, /* Subaddress */
0x50, /* SAA7191_REG_IDEL */
0x30, /* SAA7191_REG_HSYB */
0x00, /* SAA7191_REG_HSYS */
0xe8, /* SAA7191_REG_HCLB */
0xb6, /* SAA7191_REG_HCLS */
0xf4, /* SAA7191_REG_HPHI */
0x01, /* SAA7191_REG_LUMA - chrominance trap active (CVBS) */
0x00, /* SAA7191_REG_HUEC */
0xf8, /* SAA7191_REG_CKTQ */
0xf8, /* SAA7191_REG_CKTS */
0x90, /* SAA7191_REG_PLSE */
0x90, /* SAA7191_REG_SESE */
0x00, /* SAA7191_REG_GAIN */
0x0c, /* SAA7191_REG_STDC - not SECAM, slow time constant */
0x78, /* SAA7191_REG_IOCK - chrominance from CVBS, GPSW1 & 2 off */
0x99, /* SAA7191_REG_CTL3 - automatic field detection */
0x00, /* SAA7191_REG_CTL4 */
0x2c, /* SAA7191_REG_CHCV */
0x50, /* (0x50) SAA7191_REG_IDEL */
/* 50 Hz signal timing */
0x30, /* (0x30) SAA7191_REG_HSYB */
0x00, /* (0x00) SAA7191_REG_HSYS */
0xe8, /* (0xe8) SAA7191_REG_HCLB */
0xb6, /* (0xb6) SAA7191_REG_HCLS */
0xf4, /* (0xf4) SAA7191_REG_HPHI */
/* control */
SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */
0x00, /* (0x00) SAA7191_REG_HUEC */
0xf8, /* (0xf8) SAA7191_REG_CKTQ */
0xf8, /* (0xf8) SAA7191_REG_CKTS */
0x90, /* (0x90) SAA7191_REG_PLSE */
0x90, /* (0x90) SAA7191_REG_SESE */
0x00, /* (0x00) SAA7191_REG_GAIN */
SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC
* - not SECAM,
* slow time constant */
SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS
| SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK
* - chroma from CVBS, GPSW1 & 2 off */
SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS
| SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3
* - automatic field detection */
0x00, /* (0x00) SAA7191_REG_CTL4 */
0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */
0x00, /* unused */
0x00, /* unused */
0x34, /* SAA7191_REG_HS6B */
0x0a, /* SAA7191_REG_HS6S */
0xf4, /* SAA7191_REG_HC6B */
0xce, /* SAA7191_REG_HC6S */
0xf4, /* SAA7191_REG_HP6I */
/* 60 Hz signal timing */
0x34, /* (0x34) SAA7191_REG_HS6B */
0x0a, /* (0x0a) SAA7191_REG_HS6S */
0xf4, /* (0xf4) SAA7191_REG_HC6B */
0xce, /* (0xce) SAA7191_REG_HC6S */
0xf4, /* (0xf4) SAA7191_REG_HP6I */
};
/* SAA7191 register handling */
static unsigned char saa7191_read_reg(struct i2c_client *client,
unsigned char reg)
static u8 saa7191_read_reg(struct i2c_client *client,
u8 reg)
{
return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg];
}
static int saa7191_read_status(struct i2c_client *client,
unsigned char *value)