82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/*
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* Common code for Freescale MMA955x Intelligent Sensor Platform drivers
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef _MMA9551_CORE_H_
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#define _MMA9551_CORE_H_
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/* Applications IDs */
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#define MMA9551_APPID_VERSION 0x00
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#define MMA9551_APPID_GPIO 0x03
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#define MMA9551_APPID_AFE 0x06
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#define MMA9551_APPID_TILT 0x0B
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#define MMA9551_APPID_SLEEP_WAKE 0x12
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#define MMA9551_APPID_PEDOMETER 0x15
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#define MMA9551_APPID_RSC 0x17
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#define MMA9551_APPID_NONE 0xff
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/* Reset/Suspend/Clear application app masks */
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#define MMA9551_RSC_PED BIT(21)
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#define MMA9551_AUTO_SUSPEND_DELAY_MS 2000
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enum mma9551_gpio_pin {
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mma9551_gpio6 = 0,
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mma9551_gpio7,
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mma9551_gpio8,
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mma9551_gpio9,
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mma9551_gpio_max = mma9551_gpio9,
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};
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#define MMA9551_ACCEL_CHANNEL(axis) { \
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.type = IIO_ACCEL, \
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.modified = 1, \
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.channel2 = axis, \
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
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}
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int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
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u16 reg, u8 *val);
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int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
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u16 reg, u8 val);
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int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
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u16 reg, u8 *val);
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int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
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u16 reg, u16 *val);
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int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
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u16 reg, u16 val);
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int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
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u16 reg, u16 *val);
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int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
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u16 reg, u8 len, u16 *buf);
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int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
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u16 reg, u8 len, u16 *buf);
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int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
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u16 reg, u8 len, u16 *buf);
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int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
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u16 reg, u8 mask, u8 val);
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int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
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u8 app_id, u8 bitnum, int polarity);
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int mma9551_read_version(struct i2c_client *client);
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int mma9551_set_device_state(struct i2c_client *client, bool enable);
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int mma9551_set_power_state(struct i2c_client *client, bool on);
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void mma9551_sleep(int freq);
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int mma9551_read_accel_chan(struct i2c_client *client,
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const struct iio_chan_spec *chan,
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int *val, int *val2);
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int mma9551_read_accel_scale(int *val, int *val2);
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int mma9551_app_reset(struct i2c_client *client, u32 app_mask);
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#endif /* _MMA9551_CORE_H_ */
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