| /* 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 */ |
