diff options
Diffstat (limited to 'drivers/iio/accel/mma9551_core.h')
-rw-r--r-- | drivers/iio/accel/mma9551_core.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/iio/accel/mma9551_core.h b/drivers/iio/accel/mma9551_core.h new file mode 100644 index 0000000000..543454a31d --- /dev/null +++ b/drivers/iio/accel/mma9551_core.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Common code for Freescale MMA955x Intelligent Sensor Platform drivers + * Copyright (c) 2014, Intel Corporation. + */ + +#ifndef _MMA9551_CORE_H_ +#define _MMA9551_CORE_H_ + +/* Applications IDs */ +#define MMA9551_APPID_VERSION 0x00 +#define MMA9551_APPID_GPIO 0x03 +#define MMA9551_APPID_AFE 0x06 +#define MMA9551_APPID_TILT 0x0B +#define MMA9551_APPID_SLEEP_WAKE 0x12 +#define MMA9551_APPID_PEDOMETER 0x15 +#define MMA9551_APPID_RSC 0x17 +#define MMA9551_APPID_NONE 0xff + +/* Reset/Suspend/Clear application app masks */ +#define MMA9551_RSC_PED BIT(21) + +#define MMA9551_AUTO_SUSPEND_DELAY_MS 2000 + +enum mma9551_gpio_pin { + mma9551_gpio6 = 0, + mma9551_gpio7, + mma9551_gpio8, + mma9551_gpio9, + mma9551_gpio_max = mma9551_gpio9, +}; + +#define MMA9551_ACCEL_CHANNEL(axis) { \ + .type = IIO_ACCEL, \ + .modified = 1, \ + .channel2 = axis, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ +} + +int mma9551_read_config_byte(struct i2c_client *client, u8 app_id, + u16 reg, u8 *val); +int mma9551_write_config_byte(struct i2c_client *client, u8 app_id, + u16 reg, u8 val); +int mma9551_read_status_byte(struct i2c_client *client, u8 app_id, + u16 reg, u8 *val); +int mma9551_read_config_word(struct i2c_client *client, u8 app_id, + u16 reg, u16 *val); +int mma9551_write_config_word(struct i2c_client *client, u8 app_id, + u16 reg, u16 val); +int mma9551_read_status_word(struct i2c_client *client, u8 app_id, + u16 reg, u16 *val); +int mma9551_read_config_words(struct i2c_client *client, u8 app_id, + u16 reg, u8 len, u16 *buf); +int mma9551_read_status_words(struct i2c_client *client, u8 app_id, + u16 reg, u8 len, u16 *buf); +int mma9551_write_config_words(struct i2c_client *client, u8 app_id, + u16 reg, u8 len, u16 *buf); +int mma9551_update_config_bits(struct i2c_client *client, u8 app_id, + u16 reg, u8 mask, u8 val); +int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin, + u8 app_id, u8 bitnum, int polarity); +int mma9551_read_version(struct i2c_client *client); +int mma9551_set_device_state(struct i2c_client *client, bool enable); +int mma9551_set_power_state(struct i2c_client *client, bool on); +void mma9551_sleep(int freq); +int mma9551_read_accel_chan(struct i2c_client *client, + const struct iio_chan_spec *chan, + int *val, int *val2); +int mma9551_read_accel_scale(int *val, int *val2); +int mma9551_app_reset(struct i2c_client *client, u32 app_mask); + +#endif /* _MMA9551_CORE_H_ */ |