1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BMC150_ACCEL_H_ 3 #define _BMC150_ACCEL_H_ 4 5 #include <linux/atomic.h> 6 #include <linux/iio/iio.h> 7 #include <linux/mutex.h> 8 #include <linux/regulator/consumer.h> 9 #include <linux/workqueue.h> 10 11 struct regmap; 12 struct i2c_client; 13 struct bmc150_accel_chip_info; 14 struct bmc150_accel_interrupt_info; 15 16 struct bmc150_accel_interrupt { 17 const struct bmc150_accel_interrupt_info *info; 18 atomic_t users; 19 }; 20 21 struct bmc150_accel_trigger { 22 struct bmc150_accel_data *data; 23 struct iio_trigger *indio_trig; 24 int (*setup)(struct bmc150_accel_trigger *t, bool state); 25 int intr; 26 bool enabled; 27 }; 28 29 enum bmc150_accel_interrupt_id { 30 BMC150_ACCEL_INT_DATA_READY, 31 BMC150_ACCEL_INT_ANY_MOTION, 32 BMC150_ACCEL_INT_WATERMARK, 33 BMC150_ACCEL_INTERRUPTS, 34 }; 35 36 enum bmc150_accel_trigger_id { 37 BMC150_ACCEL_TRIGGER_DATA_READY, 38 BMC150_ACCEL_TRIGGER_ANY_MOTION, 39 BMC150_ACCEL_TRIGGERS, 40 }; 41 42 struct bmc150_accel_data { 43 struct regmap *regmap; 44 struct regulator_bulk_data regulators[2]; 45 struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS]; 46 struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS]; 47 struct mutex mutex; 48 u8 fifo_mode, watermark; 49 s16 buffer[8]; 50 /* 51 * Ensure there is sufficient space and correct alignment for 52 * the timestamp if enabled 53 */ 54 struct { 55 __le16 channels[3]; 56 s64 ts __aligned(8); 57 } scan; 58 u8 bw_bits; 59 u32 slope_dur; 60 u32 slope_thres; 61 u32 range; 62 int ev_enable_state; 63 int64_t timestamp, old_timestamp; /* Only used in hw fifo mode. */ 64 const struct bmc150_accel_chip_info *chip_info; 65 struct i2c_client *second_device; 66 void (*resume_callback)(struct device *dev); 67 struct delayed_work resume_work; 68 struct iio_mount_matrix orientation; 69 }; 70 71 int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, 72 const char *name, bool block_supported); 73 int bmc150_accel_core_remove(struct device *dev); 74 extern const struct dev_pm_ops bmc150_accel_pm_ops; 75 extern const struct regmap_config bmc150_regmap_conf; 76 77 #endif /* _BMC150_ACCEL_H_ */ 78