V4L/DVB (10003): m5602: Simplify the error handling in the ov9650 sensor
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
Mauro Carvalho Chehab
Родитель
8bcbc91149
Коммит
e07b14e80b
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@ -67,18 +67,29 @@ int ov9650_read_sensor(struct sd *sd, const u8 address,
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err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
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} while ((*i2c_data & I2C_BUSY) && !err);
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m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
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ov9650.i2c_slave_id);
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m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
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m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
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m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
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err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
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ov9650.i2c_slave_id);
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if (err < 0)
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goto out;
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for (i = 0; i < len; i++) {
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err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
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if (err < 0)
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goto out;
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err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
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if (err < 0)
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goto out;
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err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
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for (i = 0; (i < len) && !err; i++) {
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err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));
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PDEBUG(D_CONF, "Reading sensor register "
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"0x%x containing 0x%x ", address, *i2c_data);
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"0x%x containing 0x%x ", address, *i2c_data);
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}
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out:
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return (err < 0) ? err : 0;
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}
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@ -103,7 +114,7 @@ int ov9650_write_sensor(struct sd *sd, const u8 address,
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/* Special case larger sensor writes */
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p = buf + 16;
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/* Copy a four byte write sequence for each byte to be written to */
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/* Copy a four byte write sequence for each byte to write over the I2C bus */
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for (i = 0; i < len; i++) {
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memcpy(p, sensor_urb_skeleton + 16, 4);
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p[3] = i2c_data[i];
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@ -190,28 +201,28 @@ int ov9650_init(struct sd *sd)
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err = m5602_write_bridge(sd, init_ov9650[i][1], data);
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}
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if (!err && dmi_check_system(ov9650_flip_dmi_table)) {
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if (dmi_check_system(ov9650_flip_dmi_table) && !err) {
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info("vflip quirk active");
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data = 0x30;
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err = ov9650_write_sensor(sd, OV9650_MVFP, &data, 1);
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}
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_power_down(struct sd *sd)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(power_down_ov9650); i++) {
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int i, err = 0;
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for (i = 0; i < ARRAY_SIZE(power_down_ov9650) && !err; i++) {
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u8 data = power_down_ov9650[i][2];
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if (power_down_ov9650[i][0] == SENSOR)
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ov9650_write_sensor(sd,
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err = ov9650_write_sensor(sd,
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power_down_ov9650[i][1], &data, 1);
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else
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m5602_write_bridge(sd, power_down_ov9650[i][1], data);
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err = m5602_write_bridge(sd, power_down_ov9650[i][1], data);
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}
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return 0;
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return err;
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}
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int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
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@ -237,7 +248,7 @@ int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
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PDEBUG(D_V4L2, "Read exposure %d", *val);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
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@ -268,7 +279,7 @@ int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
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err = ov9650_write_sensor(sd, OV9650_COM1, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
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@ -283,7 +294,7 @@ int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
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err = ov9650_read_sensor(sd, OV9650_GAIN, &i2c_data, 1);
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*val |= i2c_data;
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PDEBUG(D_V4L2, "Read gain %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
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@ -304,7 +315,7 @@ int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
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/* The 8 LSBs */
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i2c_data = val & 0xff;
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err = ov9650_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
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@ -318,7 +329,7 @@ int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
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PDEBUG(D_V4L2, "Read red gain %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
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@ -333,7 +344,7 @@ int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
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i2c_data = val & 0xff;
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err = ov9650_write_sensor(sd, OV9650_RED, &i2c_data, 1);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
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@ -347,7 +358,7 @@ int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
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PDEBUG(D_V4L2, "Read blue gain %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
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@ -362,7 +373,7 @@ int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
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i2c_data = val & 0xff;
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err = ov9650_write_sensor(sd, OV9650_BLUE, &i2c_data, 1);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
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@ -378,7 +389,7 @@ int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
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*val = (i2c_data & OV9650_HFLIP) >> 5;
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PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
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@ -394,14 +405,14 @@ int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
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if (dmi_check_system(ov9650_flip_dmi_table))
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i2c_data = ((i2c_data & 0xdf) |
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(((val ? 0 : 1) & 0x01) << 5));
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(((val ? 0 : 1) & 0x01) << 5));
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else
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i2c_data = ((i2c_data & 0xdf) |
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((val & 0x01) << 5));
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((val & 0x01) << 5));
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err = ov9650_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
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@ -417,7 +428,7 @@ int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
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*val = (i2c_data & 0x10) >> 4;
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PDEBUG(D_V4L2, "Read vertical flip %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
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@ -440,7 +451,7 @@ int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
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err = ov9650_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
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@ -458,7 +469,7 @@ int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
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*val |= i2c_data;
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PDEBUG(D_V4L2, "Read gain %d", *val);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
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@ -486,7 +497,7 @@ int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
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err = ov9650_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
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@ -499,7 +510,7 @@ int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
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*val = (i2c_data & OV9650_AWB_EN) >> 1;
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PDEBUG(D_V4L2, "Read auto white balance %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
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@ -516,7 +527,7 @@ int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
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i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
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err = ov9650_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
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@ -529,7 +540,7 @@ int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
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*val = (i2c_data & OV9650_AGC_EN) >> 2;
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PDEBUG(D_V4L2, "Read auto gain control %d", *val);
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return (err < 0) ? err : 0;
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return err;
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}
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int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
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@ -546,7 +557,7 @@ int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
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i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
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err = ov9650_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
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out:
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return (err < 0) ? err : 0;
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return err;
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}
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void ov9650_dump_registers(struct sd *sd)
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