diff options
Diffstat (limited to 'include/linux/i3c/device.h')
| -rw-r--r-- | include/linux/i3c/device.h | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h index de102e4418ab..b674f64d0822 100644 --- a/include/linux/i3c/device.h +++ b/include/linux/i3c/device.h @@ -18,17 +18,18 @@ /** * enum i3c_error_code - I3C error codes * + * @I3C_ERROR_UNKNOWN: unknown error, usually means the error is not I3C + * related + * @I3C_ERROR_M0: M0 error + * @I3C_ERROR_M1: M1 error + * @I3C_ERROR_M2: M2 error + * * These are the standard error codes as defined by the I3C specification. * When -EIO is returned by the i3c_device_do_priv_xfers() or * i3c_device_send_hdr_cmds() one can check the error code in * &struct_i3c_priv_xfer.err or &struct i3c_hdr_cmd.err to get a better idea of * what went wrong. * - * @I3C_ERROR_UNKNOWN: unknown error, usually means the error is not I3C - * related - * @I3C_ERROR_M0: M0 error - * @I3C_ERROR_M1: M1 error - * @I3C_ERROR_M2: M2 error */ enum i3c_error_code { I3C_ERROR_UNKNOWN = 0, @@ -53,6 +54,7 @@ enum i3c_hdr_mode { * struct i3c_priv_xfer - I3C SDR private transfer * @rnw: encodes the transfer direction. true for a read, false for a write * @len: transfer length in bytes of the transfer + * @actual_len: actual length in bytes are transferred by the controller * @data: input/output buffer * @data.in: input buffer. Must point to a DMA-able buffer * @data.out: output buffer. Must point to a DMA-able buffer @@ -61,6 +63,7 @@ enum i3c_hdr_mode { struct i3c_priv_xfer { u8 rnw; u16 len; + u16 actual_len; union { void *in; const void *out; @@ -95,7 +98,7 @@ enum i3c_dcr { /** * struct i3c_device_info - I3C device information - * @pid: Provisional ID + * @pid: Provisioned ID * @bcr: Bus Characteristic Register * @dcr: Device Characteristic Register * @static_addr: static/I2C address @@ -176,17 +179,21 @@ struct i3c_device; struct i3c_driver { struct device_driver driver; int (*probe)(struct i3c_device *dev); - int (*remove)(struct i3c_device *dev); + void (*remove)(struct i3c_device *dev); const struct i3c_device_id *id_table; }; -static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv) -{ - return container_of(drv, struct i3c_driver, driver); -} +#define drv_to_i3cdrv(__drv) container_of_const(__drv, struct i3c_driver, driver) struct device *i3cdev_to_dev(struct i3c_device *i3cdev); -struct i3c_device *dev_to_i3cdev(struct device *dev); + +/** + * dev_to_i3cdev() - Returns the I3C device containing @dev + * @__dev: device object + * + * Return: a pointer to an I3C device object. + */ +#define dev_to_i3cdev(__dev) container_of_const(__dev, struct i3c_device, dev) const struct i3c_device_id * i3c_device_match_id(struct i3c_device *i3cdev, @@ -276,7 +283,7 @@ static inline void i3c_i2c_driver_unregister(struct i3c_driver *i3cdrv, * module_i3c_i2c_driver() - Register a module providing an I3C and an I2C * driver * @__i3cdrv: the I3C driver to register - * @__i2cdrv: the I3C driver to register + * @__i2cdrv: the I2C driver to register * * Provide generic init/exit functions that simply register/unregister an I3C * and an I2C driver. @@ -287,13 +294,16 @@ static inline void i3c_i2c_driver_unregister(struct i3c_driver *i3cdrv, #define module_i3c_i2c_driver(__i3cdrv, __i2cdrv) \ module_driver(__i3cdrv, \ i3c_i2c_driver_register, \ - i3c_i2c_driver_unregister) + i3c_i2c_driver_unregister, \ + __i2cdrv) int i3c_device_do_priv_xfers(struct i3c_device *dev, struct i3c_priv_xfer *xfers, int nxfers); -void i3c_device_get_info(struct i3c_device *dev, struct i3c_device_info *info); +int i3c_device_do_setdasa(struct i3c_device *dev); + +void i3c_device_get_info(const struct i3c_device *dev, struct i3c_device_info *info); struct i3c_ibi_payload { unsigned int len; |