LXR linux/drivers/iio/accel/mma9551

   1/*
   2 * Common code for Freescale MMA955x Intelligent Sensor Platform drivers
   3 * Copyright (c) 2014, Intel Corporation.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms and conditions of the GNU General Public License,
   7 * version 2, as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 */
  14
  15#ifndef _MMA9551_CORE_H_
  16#define _MMA9551_CORE_H_
  17
  18/* Applications IDs */
  19#define MMA9551_APPID_VERSION           0x00
  20#define MMA9551_APPID_GPIO              0x03
  21#define MMA9551_APPID_AFE               0x06
  22#define MMA9551_APPID_TILT              0x0B
  23#define MMA9551_APPID_SLEEP_WAKE        0x12
  24#define MMA9551_APPID_PEDOMETER         0x15
  25#define MMA9551_APPID_RSC               0x17
  26#define MMA9551_APPID_NONE              0xff
  27
  28/* Reset/Suspend/Clear application app masks */
  29#define MMA9551_RSC_PED                 BIT(21)
  30
  31#define MMA9551_AUTO_SUSPEND_DELAY_MS   2000
  32
  33enum mma9551_gpio_pin {
  34        mma9551_gpio6 = 0,
  35        mma9551_gpio7,
  36        mma9551_gpio8,
  37        mma9551_gpio9,
  38        mma9551_gpio_max = mma9551_gpio9,
  39};
  40
  41#define MMA9551_ACCEL_CHANNEL(axis) {                           \
  42        .type = IIO_ACCEL,                                      \
  43        .modified = 1,                                          \
  44        .channel2 = axis,                                       \
  45        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),           \
  46        .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),   \
  47}
  48
  49int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
  50                             u16 reg, u8 *val);
  51int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
  52                              u16 reg, u8 val);
  53int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
  54                             u16 reg, u8 *val);
  55int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
  56                             u16 reg, u16 *val);
  57int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
  58                              u16 reg, u16 val);
  59int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
  60                             u16 reg, u16 *val);
  61int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
  62                              u16 reg, u8 len, u16 *buf);
  63int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
  64                              u16 reg, u8 len, u16 *buf);
  65int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
  66                               u16 reg, u8 len, u16 *buf);
  67int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
  68                               u16 reg, u8 mask, u8 val);
  69int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
  70                        u8 app_id, u8 bitnum, int polarity);
  71int mma9551_read_version(struct i2c_client *client);
  72int mma9551_set_device_state(struct i2c_client *client, bool enable);
  73int mma9551_set_power_state(struct i2c_client *client, bool on);
  74void mma9551_sleep(int freq);
  75int mma9551_read_accel_chan(struct i2c_client *client,
  76                            const struct iio_chan_spec *chan,
  77                            int *val, int *val2);
  78int mma9551_read_accel_scale(int *val, int *val2);
  79int mma9551_app_reset(struct i2c_client *client, u32 app_mask);
  80
  81#endif /* _MMA9551_CORE_H_ */
  82