driver/als_si114x.h - chromiumos/platform/ec - Git at Google

 /* Copyright 2015 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Silicon Image SI1141/SI1142 light sensor driver
  */

 /*
  * si114x.c - Support for Silabs si114x combined ambient light and
  * proximity sensor
  *
  * Copyright 2012 Peter Meerwald <pmeerw@pmeerw.net>
  *
  * This file is subject to the terms and conditions of version 2 of
  * the GNU General Public License.  See the file COPYING in the main
  * directory of this archive for more details.
  *
  * IIO driver for si114x (7-bit I2C slave address 0x5a) with sequencer
  * version >= A03
  */

 #ifndef __CROS_EC_ALS_SI114X_H
 #define __CROS_EC_ALS_SI114X_H

 #define SI114X_ADDR                     (0x5a << 1)

 #define SI114X_REG_PART_ID		0x00
 #define SI114X_SI1141_ID                     0x41
 #define SI114X_SI1142_ID                     0x42
 #define SI114X_SI1143_ID                     0x43

 #define SI114X_NUM_LEDS  (CONFIG_ALS_SI114X - 0x40)

 #define SI114X_REG_REV_ID		0x01
 #define SI114X_REG_SEQ_ID		0x02
 #define SI114X_REG_INT_CFG		0x03
 #define SI114X_REG_IRQ_ENABLE		0x04
 #define SI114X_REG_IRQ_MODE1		0x05
 #define SI114X_REG_IRQ_MODE2		0x06
 #define SI114X_REG_HW_KEY		0x07
 /* RATE stores a 16 bit value compressed to 8 bit */
 /* Not used, the sensor is in force mode */
 #define SI114X_REG_MEAS_RATE		0x08


 #define SI114X_REG_ALS_RATE		0x09
 #define SI114X_REG_PS_RATE		0x0a
 #define SI114X_REG_ALS_LOW_TH0		0x0b
 #define SI114X_REG_ALS_LOW_TH1		0x0c
 #define SI114X_REG_ALS_HI_TH0		0x0d
 #define SI114X_REG_ALS_HI_TH1		0x0e
 #define SI114X_REG_PS_LED21		0x0f
 #define SI114X_REG_PS_LED3		0x10
 /*
  * for rev A10 and below TH0 stores a 16 bit value compressed to 8 bit and
  * TH1 is not used; newer revision have the LSB in TH0 and the MSB in TH1
  */
 #define SI114X_REG_PS1_TH0		0x11
 #define SI114X_REG_PS1_TH1		0x12
 #define SI114X_REG_PS2_TH0		0x13
 #define SI114X_REG_PS2_TH1		0x11
 #define SI114X_REG_PS3_TH0		0x15
 #define SI114X_REG_PS3_TH1		0x16
 #define SI114X_REG_PARAM_WR		0x17
 #define SI114X_REG_COMMAND		0x18
 #define SI114X_REG_RESPONSE		0x20
 #define SI114X_REG_IRQ_STATUS		0x21
 #define SI114X_REG_ALSVIS_DATA0		0x22
 #define SI114X_REG_ALSVIS_DATA1		0x23
 #define SI114X_REG_ALSIR_DATA0		0x24
 #define SI114X_REG_ALSIR_DATA1		0x25
 #define SI114X_REG_PS1_DATA0		0x26
 #define SI114X_REG_PS1_DATA1		0x27
 #define SI114X_REG_PS2_DATA0		0x28
 #define SI114X_REG_PS2_DATA1		0x29
 #define SI114X_REG_PS3_DATA0		0x2a
 #define SI114X_REG_PS3_DATA1		0x2b
 #define SI114X_PS_INVERSION(_data) ((1 << 16) / (_data))
 #define SI114X_REG_AUX_DATA0		0x2c
 #define SI114X_REG_AUX_DATA1		0x2d
 #define SI114X_REG_PARAM_RD		0x2e
 #define SI114X_REG_CHIP_STAT		0x30

 /* helper to figure out PS_LED register / shift per channel */
 #define SI114X_PS_LED_REG(ch) \
 	(((ch) == 2) ? SI114X_REG_PS_LED3 : SI114X_REG_PS_LED21)
 #define SI114X_PS_LED_SHIFT(ch) \
 	(((ch) == 1) ? 4 : 0)

 /* Parameter offsets */
 #define SI114X_PARAM_I2C_ADDR		0x00
 #define SI114X_PARAM_CHLIST		0x01
 #define SI114X_PARAM_PSLED12_SELECT	0x02
 #define SI114X_PARAM_PSLED3_SELECT	0x03
 #define SI114X_PARAM_FILTER_EN		0x04
 #define SI114X_PARAM_PS_ENCODING	0x05
 #define SI114X_PARAM_ALS_ENCODING	0x06
 #define SI114X_PARAM_PS1_ADC_MUX	0x07
 #define SI114X_PARAM_PS2_ADC_MUX	0x08
 #define SI114X_PARAM_PS3_ADC_MUX	0x09
 #define SI114X_PARAM_PS_ADC_COUNTER	0x0a
 #define SI114X_PARAM_PS_ADC_GAIN	0x0b
 #define SI114X_PARAM_PS_ADC_MISC	0x0c
 #define SI114X_PARAM_PS_ADC_MISC_HIGH_RANGE       0x20
 #define SI114X_PARAM_PS_ADC_MISC_NORMAL_MODE      0x04
 #define SI114X_PARAM_ALS_ADC_MUX	0x0d
 #define SI114X_PARAM_ALSIR_ADC_MUX	0x0e
 #define SI114X_PARAM_AUX_ADC_MUX	0x0f
 #define SI114X_PARAM_ALSVIS_ADC_COUNTER	0x10
 #define SI114X_PARAM_ALSVIS_ADC_GAIN	0x11
 #define SI114X_PARAM_ALSVIS_ADC_MISC	0x12
 #define SI114X_PARAM_ALS_HYST		0x16
 #define SI114X_PARAM_PS_HYST		0x17
 #define SI114X_PARAM_PS_HISTORY		0x18
 #define SI114X_PARAM_ALS_HISTORY	0x19
 #define SI114X_PARAM_ADC_OFFSET		0x1a
 #define SI114X_PARAM_SLEEP_CTRL		0x1b
 #define SI114X_PARAM_LED_RECOVERY	0x1c
 #define SI114X_PARAM_ALSIR_ADC_COUNTER	0x1d
 #define SI114X_PARAM_ALSIR_ADC_GAIN	0x1e
 #define SI114X_PARAM_ALSIR_ADC_MISC	0x1f

 /* Channel enable masks for CHLIST parameter */
 #define SI114X_CHLIST_EN_PS1		0x01
 #define SI114X_CHLIST_EN_PS2		0x02
 #define SI114X_CHLIST_EN_PS3		0x04
 #define SI114X_CHLIST_EN_ALSVIS		0x10
 #define SI114X_CHLIST_EN_ALSIR		0x20
 #define SI114X_CHLIST_EN_AUX		0x40

 /* Signal range mask for ADC_MISC parameter */
 #define SI114X_MISC_RANGE		0x20

 /* Commands for REG_COMMAND */
 #define SI114X_CMD_NOP			0x00
 #define SI114X_CMD_RESET		0x01
 #define SI114X_CMD_BUSADDR		0x02
 #define SI114X_CMD_PS_FORCE		0x05
 #define SI114X_CMD_ALS_FORCE		0x06
 #define SI114X_CMD_PSALS_FORCE		0x07
 #define SI114X_CMD_PS_PAUSE		0x09
 #define SI114X_CMD_ALS_PAUSE		0x0a
 #define SI114X_CMD_PSALS_PAUSE		0x0b
 #define SI114X_CMD_PS_AUTO		0x0d
 #define SI114X_CMD_ALS_AUTO		0x0e
 #define SI114X_CMD_PSALS_AUTO		0x0f
 #define SI114X_CMD_PARAM_QUERY		0x80
 #define SI114X_CMD_PARAM_SET		0xa0
 #define SI114X_CMD_PARAM_AND		0xc0
 #define SI114X_CMD_PARAM_OR		0xe0

 /* Interrupt configuration masks for INT_CFG register */
 #define SI114X_INT_CFG_OE		0x01 /* enable interrupt */
 #define SI114X_INT_CFG_MODE		0x02 /* auto reset interrupt pin */

 /* Interrupt enable masks for IRQ_ENABLE register */
 #define SI114X_CMD_IE			0x20
 #define SI114X_PS3_IE			0x10
 #define SI114X_PS2_IE			0x08
 #define SI114X_PS1_IE			0x04
 #define SI114X_ALS_INT1_IE		0x02
 #define SI114X_ALS_INT0_IE		0x01
 #define SI114X_ALS_INT_FLAG \
 	(SI114X_ALS_INT1_IE | SI114X_ALS_INT0_IE)
 #define SI114X_PS_INT_FLAG \
 	(SI114X_PS3_IE | SI114X_PS2_IE | SI114X_PS1_IE)


 /* Interrupt mode masks for IRQ_MODE1 register */
 #define SI114X_PS2_IM_GREATER		0xc0
 #define SI114X_PS2_IM_CROSS		0x40
 #define SI114X_PS1_IM_GREATER		0x30
 #define SI114X_PS1_IM_CROSS		0x10

 /* Interrupt mode masks for IRQ_MODE2 register */
 #define SI114X_CMD_IM_ERROR		0x04
 #define SI114X_PS3_IM_GREATER		0x03
 #define SI114X_PS3_IM_CROSS		0x01

 /* Measurement rate settings */
 #define SI114X_MEAS_RATE_FORCED		0x00
 #define SI114X_MEAS_RATE_10MS		0x84
 #define SI114X_MEAS_RATE_20MS		0x94
 #define SI114X_MEAS_RATE_100MS		0xb9
 #define SI114X_MEAS_RATE_496MS		0xdf
 #define SI114X_MEAS_RATE_1984MS		0xff

 /* ALS rate settings relative to measurement rate */
 #define SI114X_ALS_RATE_OFF		0x00
 #define SI114X_ALS_RATE_1X		0x08
 #define SI114X_ALS_RATE_10X		0x32
 #define SI114X_ALS_RATE_100X		0x69

 /* PS rate settings relative to measurement rate */
 #define SI114X_PS_RATE_OFF		0x00
 #define SI114X_PS_RATE_1X		0x08
 #define SI114X_PS_RATE_10X		0x32
 #define SI114X_PS_RATE_100X		0x69

 /* Sequencer revision from SEQ_ID */
 #define SI114X_SEQ_REV_A01		0x01
 #define SI114X_SEQ_REV_A02		0x02
 #define SI114X_SEQ_REV_A03		0x03
 #define SI114X_SEQ_REV_A10		0x08
 #define SI114X_SEQ_REV_A11		0x09

 /* Proximity sensor finds an object within 5 cm, disable light sensor */
 #define SI114X_COVERED_THRESHOLD        5
 #define SI114X_OVERFLOW                 0xffff

 /* Time to wait before re-initializing the device if access is denied */
 #define SI114X_DENIED_THRESHOLD		(10 * SECOND)

 /* Delay used for deferred callback when polling is enabled */
 #define SI114x_POLLING_DELAY (8 * MSEC)

 extern const struct accelgyro_drv si114x_drv;

 enum si114x_state {
 	SI114X_NOT_READY,
 	SI114X_IDLE,
 	SI114X_ALS_IN_PROGRESS,
 	SI114X_ALS_IN_PROGRESS_PS_PENDING,
 	SI114X_PS_IN_PROGRESS,
 	SI114X_PS_IN_PROGRESS_ALS_PENDING,
 };

 /**
  * struct si114x_data - si114x chip state data
  * @client:	I2C client
  **/
 struct si114x_typed_data_t {
 	uint8_t base_data_reg;
 	uint8_t irq_flags;
 	/* requested frequency, in mHz */
 	int rate;
 	/* the coef is scale.uscale */
 	int16_t scale;
 	uint16_t uscale;
 	int16_t offset;
 };

 struct si114x_drv_data_t {
 	enum si114x_state state;
 	uint8_t covered;
 	struct si114x_typed_data_t type_data[2];
 };

 #define SI114X_GET_DATA(_s) \
 	((struct si114x_drv_data_t *)(_s)->drv_data)

 #define SI114X_GET_TYPED_DATA(_s) \
 	(&SI114X_GET_DATA(_s)->type_data[(_s)->type - MOTIONSENSE_TYPE_PROX])

 extern struct si114x_drv_data_t g_si114x_data;
 void si114x_interrupt(enum gpio_signal signal);

 #endif	/* __CROS_EC_ALS_SI114X_H */
	/* Copyright 2015 The Chromium OS Authors. All rights reserved.
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*
	* Silicon Image SI1141/SI1142 light sensor driver
	*/

	/*
	* si114x.c - Support for Silabs si114x combined ambient light and
	* proximity sensor
	*
	* Copyright 2012 Peter Meerwald <pmeerw@pmeerw.net>
	*
	* This file is subject to the terms and conditions of version 2 of
	* the GNU General Public License. See the file COPYING in the main
	* directory of this archive for more details.
	*
	* IIO driver for si114x (7-bit I2C slave address 0x5a) with sequencer
	* version >= A03
	*/

	#ifndef __CROS_EC_ALS_SI114X_H
	#define __CROS_EC_ALS_SI114X_H

	#define SI114X_ADDR (0x5a << 1)

	#define SI114X_REG_PART_ID 0x00
	#define SI114X_SI1141_ID 0x41
	#define SI114X_SI1142_ID 0x42
	#define SI114X_SI1143_ID 0x43

	#define SI114X_NUM_LEDS (CONFIG_ALS_SI114X - 0x40)

	#define SI114X_REG_REV_ID 0x01
	#define SI114X_REG_SEQ_ID 0x02
	#define SI114X_REG_INT_CFG 0x03
	#define SI114X_REG_IRQ_ENABLE 0x04
	#define SI114X_REG_IRQ_MODE1 0x05
	#define SI114X_REG_IRQ_MODE2 0x06
	#define SI114X_REG_HW_KEY 0x07
	/* RATE stores a 16 bit value compressed to 8 bit */
	/* Not used, the sensor is in force mode */
	#define SI114X_REG_MEAS_RATE 0x08


	#define SI114X_REG_ALS_RATE 0x09
	#define SI114X_REG_PS_RATE 0x0a
	#define SI114X_REG_ALS_LOW_TH0 0x0b
	#define SI114X_REG_ALS_LOW_TH1 0x0c
	#define SI114X_REG_ALS_HI_TH0 0x0d
	#define SI114X_REG_ALS_HI_TH1 0x0e
	#define SI114X_REG_PS_LED21 0x0f
	#define SI114X_REG_PS_LED3 0x10
	/*
	* for rev A10 and below TH0 stores a 16 bit value compressed to 8 bit and
	* TH1 is not used; newer revision have the LSB in TH0 and the MSB in TH1
	*/
	#define SI114X_REG_PS1_TH0 0x11
	#define SI114X_REG_PS1_TH1 0x12
	#define SI114X_REG_PS2_TH0 0x13
	#define SI114X_REG_PS2_TH1 0x11
	#define SI114X_REG_PS3_TH0 0x15
	#define SI114X_REG_PS3_TH1 0x16
	#define SI114X_REG_PARAM_WR 0x17
	#define SI114X_REG_COMMAND 0x18
	#define SI114X_REG_RESPONSE 0x20
	#define SI114X_REG_IRQ_STATUS 0x21
	#define SI114X_REG_ALSVIS_DATA0 0x22
	#define SI114X_REG_ALSVIS_DATA1 0x23
	#define SI114X_REG_ALSIR_DATA0 0x24
	#define SI114X_REG_ALSIR_DATA1 0x25
	#define SI114X_REG_PS1_DATA0 0x26
	#define SI114X_REG_PS1_DATA1 0x27
	#define SI114X_REG_PS2_DATA0 0x28
	#define SI114X_REG_PS2_DATA1 0x29
	#define SI114X_REG_PS3_DATA0 0x2a
	#define SI114X_REG_PS3_DATA1 0x2b
	#define SI114X_PS_INVERSION(_data) ((1 << 16) / (_data))
	#define SI114X_REG_AUX_DATA0 0x2c
	#define SI114X_REG_AUX_DATA1 0x2d
	#define SI114X_REG_PARAM_RD 0x2e
	#define SI114X_REG_CHIP_STAT 0x30

	/* helper to figure out PS_LED register / shift per channel */
	#define SI114X_PS_LED_REG(ch) \
	(((ch) == 2) ? SI114X_REG_PS_LED3 : SI114X_REG_PS_LED21)
	#define SI114X_PS_LED_SHIFT(ch) \
	(((ch) == 1) ? 4 : 0)

	/* Parameter offsets */
	#define SI114X_PARAM_I2C_ADDR 0x00
	#define SI114X_PARAM_CHLIST 0x01
	#define SI114X_PARAM_PSLED12_SELECT 0x02
	#define SI114X_PARAM_PSLED3_SELECT 0x03
	#define SI114X_PARAM_FILTER_EN 0x04
	#define SI114X_PARAM_PS_ENCODING 0x05
	#define SI114X_PARAM_ALS_ENCODING 0x06
	#define SI114X_PARAM_PS1_ADC_MUX 0x07
	#define SI114X_PARAM_PS2_ADC_MUX 0x08
	#define SI114X_PARAM_PS3_ADC_MUX 0x09
	#define SI114X_PARAM_PS_ADC_COUNTER 0x0a
	#define SI114X_PARAM_PS_ADC_GAIN 0x0b
	#define SI114X_PARAM_PS_ADC_MISC 0x0c
	#define SI114X_PARAM_PS_ADC_MISC_HIGH_RANGE 0x20
	#define SI114X_PARAM_PS_ADC_MISC_NORMAL_MODE 0x04
	#define SI114X_PARAM_ALS_ADC_MUX 0x0d
	#define SI114X_PARAM_ALSIR_ADC_MUX 0x0e
	#define SI114X_PARAM_AUX_ADC_MUX 0x0f
	#define SI114X_PARAM_ALSVIS_ADC_COUNTER 0x10
	#define SI114X_PARAM_ALSVIS_ADC_GAIN 0x11
	#define SI114X_PARAM_ALSVIS_ADC_MISC 0x12
	#define SI114X_PARAM_ALS_HYST 0x16
	#define SI114X_PARAM_PS_HYST 0x17
	#define SI114X_PARAM_PS_HISTORY 0x18
	#define SI114X_PARAM_ALS_HISTORY 0x19
	#define SI114X_PARAM_ADC_OFFSET 0x1a
	#define SI114X_PARAM_SLEEP_CTRL 0x1b
	#define SI114X_PARAM_LED_RECOVERY 0x1c
	#define SI114X_PARAM_ALSIR_ADC_COUNTER 0x1d
	#define SI114X_PARAM_ALSIR_ADC_GAIN 0x1e
	#define SI114X_PARAM_ALSIR_ADC_MISC 0x1f

	/* Channel enable masks for CHLIST parameter */
	#define SI114X_CHLIST_EN_PS1 0x01
	#define SI114X_CHLIST_EN_PS2 0x02
	#define SI114X_CHLIST_EN_PS3 0x04
	#define SI114X_CHLIST_EN_ALSVIS 0x10
	#define SI114X_CHLIST_EN_ALSIR 0x20
	#define SI114X_CHLIST_EN_AUX 0x40

	/* Signal range mask for ADC_MISC parameter */
	#define SI114X_MISC_RANGE 0x20

	/* Commands for REG_COMMAND */
	#define SI114X_CMD_NOP 0x00
	#define SI114X_CMD_RESET 0x01
	#define SI114X_CMD_BUSADDR 0x02
	#define SI114X_CMD_PS_FORCE 0x05
	#define SI114X_CMD_ALS_FORCE 0x06
	#define SI114X_CMD_PSALS_FORCE 0x07
	#define SI114X_CMD_PS_PAUSE 0x09
	#define SI114X_CMD_ALS_PAUSE 0x0a
	#define SI114X_CMD_PSALS_PAUSE 0x0b
	#define SI114X_CMD_PS_AUTO 0x0d
	#define SI114X_CMD_ALS_AUTO 0x0e
	#define SI114X_CMD_PSALS_AUTO 0x0f
	#define SI114X_CMD_PARAM_QUERY 0x80
	#define SI114X_CMD_PARAM_SET 0xa0
	#define SI114X_CMD_PARAM_AND 0xc0
	#define SI114X_CMD_PARAM_OR 0xe0

	/* Interrupt configuration masks for INT_CFG register */
	#define SI114X_INT_CFG_OE 0x01 /* enable interrupt */
	#define SI114X_INT_CFG_MODE 0x02 /* auto reset interrupt pin */

	/* Interrupt enable masks for IRQ_ENABLE register */
	#define SI114X_CMD_IE 0x20
	#define SI114X_PS3_IE 0x10
	#define SI114X_PS2_IE 0x08
	#define SI114X_PS1_IE 0x04
	#define SI114X_ALS_INT1_IE 0x02
	#define SI114X_ALS_INT0_IE 0x01
	#define SI114X_ALS_INT_FLAG \
	(SI114X_ALS_INT1_IE \| SI114X_ALS_INT0_IE)
	#define SI114X_PS_INT_FLAG \
	(SI114X_PS3_IE \| SI114X_PS2_IE \| SI114X_PS1_IE)


	/* Interrupt mode masks for IRQ_MODE1 register */
	#define SI114X_PS2_IM_GREATER 0xc0
	#define SI114X_PS2_IM_CROSS 0x40
	#define SI114X_PS1_IM_GREATER 0x30
	#define SI114X_PS1_IM_CROSS 0x10

	/* Interrupt mode masks for IRQ_MODE2 register */
	#define SI114X_CMD_IM_ERROR 0x04
	#define SI114X_PS3_IM_GREATER 0x03
	#define SI114X_PS3_IM_CROSS 0x01

	/* Measurement rate settings */
	#define SI114X_MEAS_RATE_FORCED 0x00
	#define SI114X_MEAS_RATE_10MS 0x84
	#define SI114X_MEAS_RATE_20MS 0x94
	#define SI114X_MEAS_RATE_100MS 0xb9
	#define SI114X_MEAS_RATE_496MS 0xdf
	#define SI114X_MEAS_RATE_1984MS 0xff

	/* ALS rate settings relative to measurement rate */
	#define SI114X_ALS_RATE_OFF 0x00
	#define SI114X_ALS_RATE_1X 0x08
	#define SI114X_ALS_RATE_10X 0x32
	#define SI114X_ALS_RATE_100X 0x69

	/* PS rate settings relative to measurement rate */
	#define SI114X_PS_RATE_OFF 0x00
	#define SI114X_PS_RATE_1X 0x08
	#define SI114X_PS_RATE_10X 0x32
	#define SI114X_PS_RATE_100X 0x69

	/* Sequencer revision from SEQ_ID */
	#define SI114X_SEQ_REV_A01 0x01
	#define SI114X_SEQ_REV_A02 0x02
	#define SI114X_SEQ_REV_A03 0x03
	#define SI114X_SEQ_REV_A10 0x08
	#define SI114X_SEQ_REV_A11 0x09

	/* Proximity sensor finds an object within 5 cm, disable light sensor */
	#define SI114X_COVERED_THRESHOLD 5
	#define SI114X_OVERFLOW 0xffff

	/* Time to wait before re-initializing the device if access is denied */
	#define SI114X_DENIED_THRESHOLD (10 * SECOND)

	/* Delay used for deferred callback when polling is enabled */
	#define SI114x_POLLING_DELAY (8 * MSEC)

	extern const struct accelgyro_drv si114x_drv;

	enum si114x_state {
	SI114X_NOT_READY,
	SI114X_IDLE,
	SI114X_ALS_IN_PROGRESS,
	SI114X_ALS_IN_PROGRESS_PS_PENDING,
	SI114X_PS_IN_PROGRESS,
	SI114X_PS_IN_PROGRESS_ALS_PENDING,
	};

	/**
	* struct si114x_data - si114x chip state data
	* @client: I2C client
	**/
	struct si114x_typed_data_t {
	uint8_t base_data_reg;
	uint8_t irq_flags;
	/* requested frequency, in mHz */
	int rate;
	/* the coef is scale.uscale */
	int16_t scale;
	uint16_t uscale;
	int16_t offset;
	};

	struct si114x_drv_data_t {
	enum si114x_state state;
	uint8_t covered;
	struct si114x_typed_data_t type_data[2];
	};

	#define SI114X_GET_DATA(_s) \
	((struct si114x_drv_data_t *)(_s)->drv_data)

	#define SI114X_GET_TYPED_DATA(_s) \
	(&SI114X_GET_DATA(_s)->type_data[(_s)->type - MOTIONSENSE_TYPE_PROX])

	extern struct si114x_drv_data_t g_si114x_data;
	void si114x_interrupt(enum gpio_signal signal);

	#endif /* __CROS_EC_ALS_SI114X_H */