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,
- ov9650.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,
+ ov9650.i2c_slave_id);
+ if (err < 0)
+ goto out;
- for (i = 0; i < len; i++) {
+ 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);
+
+ 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);
+ "0x%x containing 0x%x ", address, *i2c_data);
}
+
+out:
return (err < 0) ? err : 0;
}
/* Special case larger sensor writes */
p = buf + 16;
- /* Copy a four byte write sequence for each byte to be written to */
+ /* Copy a four byte write sequence for each byte to write over the I2C bus */
for (i = 0; i < len; i++) {
memcpy(p, sensor_urb_skeleton + 16, 4);
p[3] = i2c_data[i];
err = m5602_write_bridge(sd, init_ov9650[i][1], data);
}
- if (!err && dmi_check_system(ov9650_flip_dmi_table)) {
+ if (dmi_check_system(ov9650_flip_dmi_table) && !err) {
info("vflip quirk active");
data = 0x30;
err = ov9650_write_sensor(sd, OV9650_MVFP, &data, 1);
}
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_power_down(struct sd *sd)
{
- int i;
- for (i = 0; i < ARRAY_SIZE(power_down_ov9650); i++) {
+ int i, err = 0;
+ for (i = 0; i < ARRAY_SIZE(power_down_ov9650) && !err; i++) {
u8 data = power_down_ov9650[i][2];
if (power_down_ov9650[i][0] == SENSOR)
- ov9650_write_sensor(sd,
+ err = ov9650_write_sensor(sd,
power_down_ov9650[i][1], &data, 1);
else
- m5602_write_bridge(sd, power_down_ov9650[i][1], data);
+ err = m5602_write_bridge(sd, power_down_ov9650[i][1], data);
}
- return 0;
+ return err;
}
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read exposure %d", *val);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
err = ov9650_write_sensor(sd, OV9650_COM1, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
err = ov9650_read_sensor(sd, OV9650_GAIN, &i2c_data, 1);
*val |= i2c_data;
PDEBUG(D_V4L2, "Read gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
/* The 8 LSBs */
i2c_data = val & 0xff;
err = ov9650_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read red gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = val & 0xff;
err = ov9650_write_sensor(sd, OV9650_RED, &i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read blue gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = val & 0xff;
err = ov9650_write_sensor(sd, OV9650_BLUE, &i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
*val = (i2c_data & OV9650_HFLIP) >> 5;
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
if (dmi_check_system(ov9650_flip_dmi_table))
i2c_data = ((i2c_data & 0xdf) |
- (((val ? 0 : 1) & 0x01) << 5));
+ (((val ? 0 : 1) & 0x01) << 5));
else
i2c_data = ((i2c_data & 0xdf) |
- ((val & 0x01) << 5));
+ ((val & 0x01) << 5));
err = ov9650_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
*val = (i2c_data & 0x10) >> 4;
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
err = ov9650_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
*val |= i2c_data;
PDEBUG(D_V4L2, "Read gain %d", *val);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
err = ov9650_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
*val = (i2c_data & OV9650_AWB_EN) >> 1;
PDEBUG(D_V4L2, "Read auto white balance %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
err = ov9650_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
*val = (i2c_data & OV9650_AGC_EN) >> 2;
PDEBUG(D_V4L2, "Read auto gain control %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
err = ov9650_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
void ov9650_dump_registers(struct sd *sd)
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