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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* CAPELLA CM32183 light sensor driver
*/
#ifndef __CROS_EC_ALS_CM32183_H
#define __CROS_EC_ALS_CM32183_H
/* I2C interface */
#define CM32183_I2C_ADDR 0x29
/* CM32183 registers */
#define CM32183_REG_CONFIGURE 0x00
#define CM32183_REG_CONFIGURE_CH_EN 0x0004
/* ALS Sensitivity_mode (BIT 12:11) */
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_MASK GENMASK(12, 11)
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_SHIFT 11
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_1 0
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_2 1
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_1_DIV_8 2
#define CM32183_REG_CONFIGURE_ALS_SENSITIVITY_1_DIV_4 3
/*
* Gain mode
* 0 Gain*1
* 1 Gain*2 (bit 10)
*/
#define CM32183_REG_CONFIGURE_GAIN BIT(10)
/*
* ALS integration time setting which represents how long
* ALS can update the readout value (BIT 9:6)
* BIT 9:6 function
* 0000 100ms
* 0001 200ms
* 0010 400ms
* 0011 800ms
*/
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_MASK GENMASK(9, 6)
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_SHIFT 6
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_SET100MS 0
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_SET200MS 1
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_SET400MS 2
#define CM32183_REG_CONFIGURE_ALS_INTEGRATION_SET800MS 3
/*
* ALS interrupt persistence setting.The interrupt pin is
* triggered while sensor reading is out of threshold windows
* after consecutive number of measurement cycle. (BIT 5:4)
* BIT 5:4 measurement cycle
* 00 1
* 01 2
* 10 4
* 11 8
*/
#define CM32183_REG_CONFIGURE_MEASUREMENT_MASK GENMASK(5, 4)
#define CM32183_REG_CONFIGURE_MEASUREMENT_SHIFT 4
#define CM32183_REG_CONFIGURE_MEASUREMENT_CYCLE_1 0
#define CM32183_REG_CONFIGURE_MEASUREMENT_CYCLE_2 1
#define CM32183_REG_CONFIGURE_MEASUREMENT_CYCLE_4 2
#define CM32183_REG_CONFIGURE_MEASUREMENT_CYCLE_8 3
/*
* channel selection of interrupt (BIT 3)
* 0 ALS CH interrupt
* 1 White CH interrupt
*/
#define CM32183_REG_CONFIGURE_CHANNEL_SELECTION BIT(3)
/*
* Channel enable (BIT 2)
* 0 ALS CH enable only
* 1 ALS & White CH enable
*/
#define CM32183_REG_CONFIGURE_CHANNEL_ENABLE BIT(2)
/* enable/disable interrupt function (BIT 1) */
#define CM32183_REG_CONFIGURE_INTERRUPT_ENABLE BIT(1)
/*
* how to power on and shutdown sensor (BIT 0)
* 0 power on
* 1 shutdown
*/
#define CM32183_REG_CONFIGURE_POWER BIT(0)
#define CM32183_REG_INT_HSB 0x01
#define CM32183_REG_INT_LSB 0x02
#define CM32183_REG_ALS_RESULT 0x04
#define CM32183_REG_WHITE_RESULT 0x05
#define CM32183_REG_TRIGGER 0x06
#define CM32183_REG_TRIGGER_LOW_THRESHOLD BIT(15)
#define CM32183_REG_TRIGGER_HIGH_THRESHOLD BIT(14)
extern const struct accelgyro_drv cm32183_drv;
#endif /* __CROS_EC_ALS_CM32183_H */
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