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-rw-r--r--drivers/iio/accel/mma9551_core.h73
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 000000000..543454a31
--- /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_ */