drivers/iio/accel/mma9551_core.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Common code for Freescale MMA955x Intelligent Sensor Platform drivers
   4  * Copyright (c) 2014, Intel Corporation.
   5  */
   6
   7 #ifndef _MMA9551_CORE_H_
   8 #define _MMA9551_CORE_H_
   9
  10 /* Applications IDs */
  11 #define MMA9551_APPID_VERSION           0x00
  12 #define MMA9551_APPID_GPIO              0x03
  13 #define MMA9551_APPID_AFE               0x06
  14 #define MMA9551_APPID_TILT              0x0B
  15 #define MMA9551_APPID_SLEEP_WAKE        0x12
  16 #define MMA9551_APPID_PEDOMETER         0x15
  17 #define MMA9551_APPID_RSC               0x17
  18 #define MMA9551_APPID_NONE              0xff
  19
  20 /* Reset/Suspend/Clear application app masks */
  21 #define MMA9551_RSC_PED                 BIT(21)
  22
  23 #define MMA9551_AUTO_SUSPEND_DELAY_MS   2000
  24
  25 enum mma9551_gpio_pin {
  26         mma9551_gpio6 = 0,
  27         mma9551_gpio7,
  28         mma9551_gpio8,
  29         mma9551_gpio9,
  30         mma9551_gpio_max = mma9551_gpio9,
  31 };
  32
  33 #define MMA9551_ACCEL_CHANNEL(axis) {                           \
  34         .type = IIO_ACCEL,                                      \
  35         .modified = 1,                                          \
  36         .channel2 = axis,                                       \
  37         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),           \
  38         .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),   \
  39 }
  40
  41 int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
  42                              u16 reg, u8 *val);
  43 int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
  44                               u16 reg, u8 val);
  45 int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
  46                              u16 reg, u8 *val);
  47 int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
  48                              u16 reg, u16 *val);
  49 int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
  50                               u16 reg, u16 val);
  51 int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
  52                              u16 reg, u16 *val);
  53 int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
  54                               u16 reg, u8 len, u16 *buf);
  55 int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
  56                               u16 reg, u8 len, u16 *buf);
  57 int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
  58                                u16 reg, u8 len, u16 *buf);
  59 int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
  60                                u16 reg, u8 mask, u8 val);
  61 int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
  62                         u8 app_id, u8 bitnum, int polarity);
  63 int mma9551_read_version(struct i2c_client *client);
  64 int mma9551_set_device_state(struct i2c_client *client, bool enable);
  65 int mma9551_set_power_state(struct i2c_client *client, bool on);
  66 void mma9551_sleep(int freq);
  67 int mma9551_read_accel_chan(struct i2c_client *client,
  68                             const struct iio_chan_spec *chan,
  69                             int *val, int *val2);
  70 int mma9551_read_accel_scale(int *val, int *val2);
  71 int mma9551_app_reset(struct i2c_client *client, u32 app_mask);
  72
  73 #endif /* _MMA9551_CORE_H_ */