diff options
Diffstat (limited to 'drivers/media/i2c/video-i2c.c')
| -rw-r--r-- | drivers/media/i2c/video-i2c.c | 61 |
1 files changed, 34 insertions, 27 deletions
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c index cb660b4bfd4b..e08e3579c0a1 100644 --- a/drivers/media/i2c/video-i2c.c +++ b/drivers/media/i2c/video-i2c.c @@ -9,6 +9,7 @@ * - Melexis MLX90640 Thermal Cameras */ +#include <linux/bits.h> #include <linux/delay.h> #include <linux/freezer.h> #include <linux/hwmon.h> @@ -34,6 +35,37 @@ #define VIDEO_I2C_DRIVER "video-i2c" +/* Power control register */ +#define AMG88XX_REG_PCTL 0x00 +#define AMG88XX_PCTL_NORMAL 0x00 +#define AMG88XX_PCTL_SLEEP 0x10 + +/* Reset register */ +#define AMG88XX_REG_RST 0x01 +#define AMG88XX_RST_FLAG 0x30 +#define AMG88XX_RST_INIT 0x3f + +/* Frame rate register */ +#define AMG88XX_REG_FPSC 0x02 +#define AMG88XX_FPSC_1FPS BIT(0) + +/* Thermistor register */ +#define AMG88XX_REG_TTHL 0x0e + +/* Temperature register */ +#define AMG88XX_REG_T01L 0x80 + +/* RAM */ +#define MLX90640_RAM_START_ADDR 0x0400 + +/* EEPROM */ +#define MLX90640_EEPROM_START_ADDR 0x2400 + +/* Control register */ +#define MLX90640_REG_CTL1 0x800d +#define MLX90640_REG_CTL1_MASK GENMASK(9, 7) +#define MLX90640_REG_CTL1_MASK_SHIFT 7 + struct video_i2c_chip; struct video_i2c_buffer { @@ -124,7 +156,7 @@ static int mlx90640_nvram_read(void *priv, unsigned int offset, void *val, { struct video_i2c_data *data = priv; - return regmap_bulk_read(data->regmap, 0x2400 + offset, val, bytes); + return regmap_bulk_read(data->regmap, MLX90640_EEPROM_START_ADDR + offset, val, bytes); } static struct nvmem_config mlx90640_nvram_config = { @@ -135,31 +167,6 @@ static struct nvmem_config mlx90640_nvram_config = { .reg_read = mlx90640_nvram_read, }; -/* Power control register */ -#define AMG88XX_REG_PCTL 0x00 -#define AMG88XX_PCTL_NORMAL 0x00 -#define AMG88XX_PCTL_SLEEP 0x10 - -/* Reset register */ -#define AMG88XX_REG_RST 0x01 -#define AMG88XX_RST_FLAG 0x30 -#define AMG88XX_RST_INIT 0x3f - -/* Frame rate register */ -#define AMG88XX_REG_FPSC 0x02 -#define AMG88XX_FPSC_1FPS BIT(0) - -/* Thermistor register */ -#define AMG88XX_REG_TTHL 0x0e - -/* Temperature register */ -#define AMG88XX_REG_T01L 0x80 - -/* Control register */ -#define MLX90640_REG_CTL1 0x800d -#define MLX90640_REG_CTL1_MASK 0x0380 -#define MLX90640_REG_CTL1_MASK_SHIFT 7 - static int amg88xx_xfer(struct video_i2c_data *data, char *buf) { return regmap_bulk_read(data->regmap, AMG88XX_REG_T01L, buf, @@ -168,7 +175,7 @@ static int amg88xx_xfer(struct video_i2c_data *data, char *buf) static int mlx90640_xfer(struct video_i2c_data *data, char *buf) { - return regmap_bulk_read(data->regmap, 0x400, buf, + return regmap_bulk_read(data->regmap, MLX90640_RAM_START_ADDR, buf, data->chip->buffer_size); } |