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V4L/DVB (10004): m5602: Cleanup the po1030 sensor error handling 

Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Erik Andrén 2008-11-20 03:59:02 -03:00 committed by Mauro Carvalho Chehab
parent e07b14e80b
commit 7b9f246738
1 changed files with 30 additions and 21 deletions
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51
drivers/media/video/gspca/m5602/m5602_po1030.c
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@ -73,19 +73,28 @@ int po1030_read_sensor(struct sd *sd, const u8 address,
err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
} while ((*i2c_data & I2C_BUSY) && !err);
m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
sd->sensor->i2c_slave_id);
m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
sd->sensor->i2c_slave_id);
if (err < 0)
goto out;
err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
if (err < 0)
goto out;
err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
if (err < 0)
goto out;
err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
if (err < 0)
goto out;
for (i = 0; i < len; i++) {
for (i = 0; (i < len) && !err; i++) {
err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));
PDEBUG(D_CONF, "Reading sensor register "
"0x%x containing 0x%x ", address, *i2c_data);
}
return (err < 0) ? err : 0;
out:
return err;
}
int po1030_write_sensor(struct sd *sd, const u8 address,
@ -135,7 +144,7 @@ int po1030_init(struct sd *sd)
int i, err = 0;
/* Init the sensor */
for (i = 0; i < ARRAY_SIZE(init_po1030); i++) {
for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
u8 data[2] = {0x00, 0x00};
switch (init_po1030[i][0]) {
@ -166,7 +175,7 @@ int po1030_init(struct sd *sd)
if (dump_sensor)
po1030_dump_registers(sd);
return (err < 0) ? err : 0;
return err;
}
int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
@ -187,7 +196,7 @@ int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Exposure read as %d", *val);
out:
return (err < 0) ? err : 0;
return err;
}
int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
@ -214,7 +223,7 @@ int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
&i2c_data, 1);
out:
return (err < 0) ? err : 0;
return err;
}
int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
@ -228,7 +237,7 @@ int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
*val = i2c_data;
PDEBUG(D_V4L2, "Read global gain %d", *val);
return (err < 0) ? err : 0;
return err;
}
int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
@ -244,7 +253,7 @@ int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read hflip %d", *val);
return (err < 0) ? err : 0;
return err;
}
int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
@ -260,7 +269,7 @@ int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
err = po1030_write_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
return (err < 0) ? err : 0;
return err;
}
int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
@ -276,7 +285,7 @@ int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read vflip %d", *val);
return (err < 0) ? err : 0;
return err;
}
int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
@ -292,7 +301,7 @@ int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
err = po1030_write_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
return (err < 0) ? err : 0;
return err;
}
int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
@ -305,7 +314,7 @@ int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "Set global gain to %d", i2c_data);
err = po1030_write_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
return (err < 0) ? err : 0;
return err;
}
int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
@ -318,7 +327,7 @@ int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read red gain %d", *val);
return (err < 0) ? err : 0;
return err;
}
int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
@ -331,7 +340,7 @@ int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "Set red gain to %d", i2c_data);
err = po1030_write_sensor(sd, PO1030_REG_RED_GAIN,
&i2c_data, 1);
return (err < 0) ? err : 0;
return err;
}
int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
@ -345,7 +354,7 @@ int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
*val = i2c_data;
PDEBUG(D_V4L2, "Read blue gain %d", *val);
return (err < 0) ? err : 0;
return err;
}
int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
@ -358,7 +367,7 @@ int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
err = po1030_write_sensor(sd, PO1030_REG_BLUE_GAIN,
&i2c_data, 1);
return (err < 0) ? err : 0;
return err;
}
int po1030_power_down(struct sd *sd)