From 209c00691938c4b3d58142b05ca6f50b8971e521 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Vianney=20le=20Cl=C3=A9ment=20de=20Saint-Marcq?= Date: Tue, 24 Mar 2015 16:54:14 +0100 Subject: [PATCH] iio: mlx90614: Add symbols for accessible registers MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add symbols for all accessible RAM and EEPROM registers, as well as the sleep command and timings defined in the datasheet. Signed-off-by: Vianney le Clément de Saint-Marcq Cc: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Jonathan Cameron --- drivers/iio/temperature/mlx90614.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c index e2c6f1a0d27f..a2e3aa6aa39d 100644 --- a/drivers/iio/temperature/mlx90614.c +++ b/drivers/iio/temperature/mlx90614.c @@ -20,11 +20,35 @@ #include -#define MLX90614_OP_RAM 0x00 +#define MLX90614_OP_RAM 0x00 +#define MLX90614_OP_EEPROM 0x20 +#define MLX90614_OP_SLEEP 0xff /* RAM offsets with 16-bit data, MSB first */ +#define MLX90614_RAW1 (MLX90614_OP_RAM | 0x04) /* raw data IR channel 1 */ +#define MLX90614_RAW2 (MLX90614_OP_RAM | 0x05) /* raw data IR channel 2 */ #define MLX90614_TA (MLX90614_OP_RAM | 0x06) /* ambient temperature */ #define MLX90614_TOBJ1 (MLX90614_OP_RAM | 0x07) /* object 1 temperature */ +#define MLX90614_TOBJ2 (MLX90614_OP_RAM | 0x08) /* object 2 temperature */ + +/* EEPROM offsets with 16-bit data, MSB first */ +#define MLX90614_EMISSIVITY (MLX90614_OP_EEPROM | 0x04) /* emissivity correction coefficient */ +#define MLX90614_CONFIG (MLX90614_OP_EEPROM | 0x05) /* configuration register */ + +/* Control bits in configuration register */ +#define MLX90614_CONFIG_IIR_SHIFT 0 /* IIR coefficient */ +#define MLX90614_CONFIG_IIR_MASK (0x7 << MLX90614_CONFIG_IIR_SHIFT) +#define MLX90614_CONFIG_DUAL_SHIFT 6 /* single (0) or dual (1) IR sensor */ +#define MLX90614_CONFIG_DUAL_MASK (1 << MLX90614_CONFIG_DUAL_SHIFT) +#define MLX90614_CONFIG_FIR_SHIFT 8 /* FIR coefficient */ +#define MLX90614_CONFIG_FIR_MASK (0x7 << MLX90614_CONFIG_FIR_SHIFT) +#define MLX90614_CONFIG_GAIN_SHIFT 11 /* gain */ +#define MLX90614_CONFIG_GAIN_MASK (0x7 << MLX90614_CONFIG_GAIN_SHIFT) + +/* Timings (in ms) */ +#define MLX90614_TIMING_EEPROM 20 /* time for EEPROM write/erase to complete */ +#define MLX90614_TIMING_WAKEUP 34 /* time to hold SDA low for wake-up */ +#define MLX90614_TIMING_STARTUP 250 /* time before first data after wake-up */ struct mlx90614_data { struct i2c_client *client; -- 2.20.1