Communicatons Middleware Interface

Detailed Description

Interface for Communications Middleware functions.

Summary

The Communications interface provides multiple communications functionality.

The Communications interface can be implemented by:

• I2C Communication Device (rm_comms_i2c)

Data Structures
struct	rm_comms_write_read_params_t
struct	rm_comms_callback_args_t
struct	rm_comms_cfg_t
struct	rm_comms_api_t
struct	rm_comms_instance_t

Typedefs
typedef void	rm_comms_ctrl_t

Enumerations
enum	rm_comms_event_t

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Data Structure Documentation

rm_comms_write_read_params_t

struct rm_comms_write_read_params_t

Struct to pack params for writeRead

rm_comms_callback_args_t

struct rm_comms_callback_args_t

Communications middleware callback parameter definition

rm_comms_cfg_t

struct rm_comms_cfg_t

Communications middleware configuration block

Data Fields
uint32_t	semaphore_timeout
	timeout for callback.
void(*	p_callback )(rm_comms_callback_args_t *p_args)
	Pointer to callback function, mostly used if using non-blocking functionality.
void const *	p_lower_level_cfg
	Pointer to lower level driver configuration structure.
void const *	p_extend
	Pointer to extended configuration by instance of interface.
void const *	p_context
	Pointer to the user-provided context.

rm_comms_api_t

struct rm_comms_api_t

COMM APIs

Data Fields
fsp_err_t(*	open )(rm_comms_ctrl_t *const p_ctrl, rm_comms_cfg_t const *const p_cfg)
fsp_err_t(*	close )(rm_comms_ctrl_t *const p_ctrl)
fsp_err_t(*	read )(rm_comms_ctrl_t *const p_ctrl, uint8_t *const p_dest, uint32_t const bytes)
fsp_err_t(*	write )(rm_comms_ctrl_t *const p_ctrl, uint8_t *const p_src, uint32_t const bytes)
fsp_err_t(*	writeRead )(rm_comms_ctrl_t *const p_ctrl, rm_comms_write_read_params_t write_read_params)

Field Documentation

open

fsp_err_t(* rm_comms_api_t::open) (rm_comms_ctrl_t *const p_ctrl, rm_comms_cfg_t const *const p_cfg)

Open driver.

Implemented as

• RM_COMMS_I2C_Open()

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_cfg	Pointer to configuration structure.

close

fsp_err_t(* rm_comms_api_t::close) (rm_comms_ctrl_t *const p_ctrl)

Close driver.

Implemented as

• RM_COMMS_I2C_Close()

Parameters

[in]

p_ctrl

Pointer to control structure.

read

fsp_err_t(* rm_comms_api_t::read) (rm_comms_ctrl_t *const p_ctrl, uint8_t *const p_dest, uint32_t const bytes)

Read data.

Implemented as

• RM_COMMS_I2C_Read()

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_dest	Pointer to the location to store read data.
[in]	bytes	Number of bytes to read.

write

fsp_err_t(* rm_comms_api_t::write) (rm_comms_ctrl_t *const p_ctrl, uint8_t *const p_src, uint32_t const bytes)

Write data.

Implemented as

• RM_COMMS_I2C_Write()

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_src	Pointer to the location to get write data from.
[in]	bytes	Number of bytes to write.

writeRead

fsp_err_t(* rm_comms_api_t::writeRead) (rm_comms_ctrl_t *const p_ctrl, rm_comms_write_read_params_t write_read_params)

Write bytes over comms followed by a read, will have a struct for params.

Implemented as

• RM_COMMS_I2C_WriteRead()

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	write_read_params	Parameters structure.

rm_comms_instance_t

struct rm_comms_instance_t

This structure encompasses everything that is needed to use an instance of this interface.

Typedef Documentation

rm_comms_ctrl_t

typedef void rm_comms_ctrl_t

Communications control block. Allocate an instance specific control block to pass into the Communications API calls.

Implemented as

• rm_comms_i2c_instance_ctrl_t

Enumeration Type Documentation

rm_comms_event_t

enum rm_comms_event_t

Event in the callback function