diff options
Diffstat (limited to 'include/linux/iio/imu/adis.h')
| -rw-r--r-- | include/linux/iio/imu/adis.h | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index 4bb98d9731de..aa160511e265 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -44,6 +44,8 @@ struct adis_timeout { * @glob_cmd_reg: Register address of the GLOB_CMD register * @msc_ctrl_reg: Register address of the MSC_CTRL register * @diag_stat_reg: Register address of the DIAG_STAT register + * @diag_stat_size: Length (in bytes) of the DIAG_STAT register. If 0 the + * default length is 2 bytes long. * @prod_id_reg: Register address of the PROD_ID register * @prod_id: Product ID code that should be expected when reading @prod_id_reg * @self_test_mask: Bitmask of supported self-test operations @@ -70,6 +72,7 @@ struct adis_data { unsigned int glob_cmd_reg; unsigned int msc_ctrl_reg; unsigned int diag_stat_reg; + unsigned int diag_stat_size; unsigned int prod_id_reg; unsigned int prod_id; @@ -95,12 +98,28 @@ struct adis_data { }; /** + * struct adis_ops: Custom ops for adis devices. + * @write: Custom spi write implementation. + * @read: Custom spi read implementation. + * @reset: Custom sw reset implementation. The custom implementation does not + * need to sleep after the reset. It's done by the library already. + */ +struct adis_ops { + int (*write)(struct adis *adis, unsigned int reg, unsigned int value, + unsigned int size); + int (*read)(struct adis *adis, unsigned int reg, unsigned int *value, + unsigned int size); + int (*reset)(struct adis *adis); +}; + +/** * struct adis - ADIS device instance data * @spi: Reference to SPI device which owns this ADIS IIO device * @trig: IIO trigger object data * @data: ADIS chip variant specific data * @burst_extra_len: Burst extra length. Should only be used by devices that can * dynamically change their burst mode length. + * @ops: ops struct for custom read and write functions * @state_lock: Lock used by the device to protect state * @msg: SPI message object * @xfer: SPI transfer objects to be used for a @msg @@ -116,6 +135,7 @@ struct adis { const struct adis_data *data; unsigned int burst_extra_len; + const struct adis_ops *ops; /** * The state_lock is meant to be used during operations that require * a sequence of SPI R/W in order to protect the SPI transfer @@ -168,7 +188,7 @@ int __adis_read_reg(struct adis *adis, unsigned int reg, static inline int __adis_write_reg_8(struct adis *adis, unsigned int reg, u8 val) { - return __adis_write_reg(adis, reg, val, 1); + return adis->ops->write(adis, reg, val, 1); } /** @@ -180,7 +200,7 @@ static inline int __adis_write_reg_8(struct adis *adis, unsigned int reg, static inline int __adis_write_reg_16(struct adis *adis, unsigned int reg, u16 val) { - return __adis_write_reg(adis, reg, val, 2); + return adis->ops->write(adis, reg, val, 2); } /** @@ -192,7 +212,7 @@ static inline int __adis_write_reg_16(struct adis *adis, unsigned int reg, static inline int __adis_write_reg_32(struct adis *adis, unsigned int reg, u32 val) { - return __adis_write_reg(adis, reg, val, 4); + return adis->ops->write(adis, reg, val, 4); } /** @@ -207,7 +227,7 @@ static inline int __adis_read_reg_16(struct adis *adis, unsigned int reg, unsigned int tmp; int ret; - ret = __adis_read_reg(adis, reg, &tmp, 2); + ret = adis->ops->read(adis, reg, &tmp, 2); if (ret == 0) *val = tmp; @@ -226,7 +246,7 @@ static inline int __adis_read_reg_32(struct adis *adis, unsigned int reg, unsigned int tmp; int ret; - ret = __adis_read_reg(adis, reg, &tmp, 4); + ret = adis->ops->read(adis, reg, &tmp, 4); if (ret == 0) *val = tmp; @@ -244,7 +264,7 @@ static inline int adis_write_reg(struct adis *adis, unsigned int reg, unsigned int val, unsigned int size) { guard(mutex)(&adis->state_lock); - return __adis_write_reg(adis, reg, val, size); + return adis->ops->write(adis, reg, val, size); } /** @@ -258,7 +278,7 @@ static int adis_read_reg(struct adis *adis, unsigned int reg, unsigned int *val, unsigned int size) { guard(mutex)(&adis->state_lock); - return __adis_read_reg(adis, reg, val, size); + return adis->ops->read(adis, reg, val, size); } /** |