oa_tc6.c File Reference

#include <errno.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "no_os_alloc.h"
#include "oa_tc6.h"

Include dependency graph for oa_tc6.c:

Functions
int	oa_rx_chunk_to_frame (struct oa_tc6_desc *desc, uint8_t *chunks, uint32_t len)
int	oa_tc6_reg_read (struct oa_tc6_desc *desc, uint32_t addr, uint32_t *val)
	Read a register value.
int	oa_tc6_reg_write (struct oa_tc6_desc *desc, uint32_t addr, uint32_t val)
	Write a register value.
int	oa_tc6_reg_update (struct oa_tc6_desc *desc, uint32_t addr, uint32_t val, uint32_t mask)
	Update a field inside a register.
int	oa_tc6_get_tx_frame (struct oa_tc6_desc *desc, struct oa_tc6_frame_buffer **buffer)
	Get a frame buffer that can be filled by user.
int	oa_tc6_put_tx_frame (struct oa_tc6_desc *desc, struct oa_tc6_frame_buffer *buffer)
	Mark a frame buffer as ready to be transmitted.
int	oa_tc6_get_rx_frame_match_vs (struct oa_tc6_desc *desc, struct oa_tc6_frame_buffer **buffer, uint8_t vs, uint8_t mask)
	Get a frame buffer that is ready to be read by the user. The VS field in the chunk footer fields should match what is provided.
int	oa_tc6_get_rx_frame (struct oa_tc6_desc *desc, struct oa_tc6_frame_buffer **buffer)
	Get a frame buffer that is ready to be read by the user.
int	oa_tc6_put_rx_frame (struct oa_tc6_desc *desc, struct oa_tc6_frame_buffer *buffer)
	Mark a frame buffer as used and ready to be rewritten.
int	oa_tc6_get_xfer_flags (struct oa_tc6_desc *desc, struct oa_tc6_flags *flags, bool clear)
	Gets the latched transfer flags that are read from the data chunk footer. Optionally clears the latched values.
int	oa_tc6_thread (struct oa_tc6_desc *desc)
	Transmit all the frames in the OA_BUFF_TX_READY state and receive the frames in the OA_BUFF_RX_COMPLETE state.
int	oa_tc6_init (struct oa_tc6_desc **desc, struct oa_tc6_init_param *param)
	Allocate resources for the OA TC6 driver.
int	oa_tc6_remove (struct oa_tc6_desc *desc)
	Free a device descriptor.

Function Documentation

oa_rx_chunk_to_frame()

int oa_rx_chunk_to_frame	(	struct oa_tc6_desc *	desc,
		uint8_t *	chunks,
		uint32_t	len )

oa_tc6_get_rx_frame()

int oa_tc6_get_rx_frame	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_frame_buffer **	buffer )

Get a frame buffer that is ready to be read by the user.

Parameters

desc	- the OA TC6 descriptor.
buffer	- buffer containing the frame received.

Returns

0 in case of success, negative error code otherwise

oa_tc6_get_rx_frame_match_vs()

int oa_tc6_get_rx_frame_match_vs	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_frame_buffer **	buffer,
		uint8_t	vs,
		uint8_t	mask )

Get a frame buffer that is ready to be read by the user. The VS field in the chunk footer fields should match what is provided.

Parameters

desc	- the OA TC6 descriptor.
buffer	- buffer containing the frame received.
vs	- the value of the VS field to match.
mask	- the mask to apply to the VS field.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_get_tx_frame()

int oa_tc6_get_tx_frame	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_frame_buffer **	buffer )

Get a frame buffer that can be filled by user.

Parameters

desc	- the OA TC6 descriptor.
buffer	- buffer containing the frame to be transmitted.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_get_xfer_flags()

int oa_tc6_get_xfer_flags	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_flags *	flags,
		bool	clear )

Gets the latched transfer flags that are read from the data chunk footer. Optionally clears the latched values.

Parameters

desc	- the OA TC6 descriptor
flags	- Storage location for flag values
clear	- If set, clears the latch and valid

Returns

0 in case of success, negative error code otherwise

oa_tc6_init()

int oa_tc6_init	(	struct oa_tc6_desc **	desc,
		struct oa_tc6_init_param *	param )

Allocate resources for the OA TC6 driver.

Parameters

desc	- the device descriptor to be initialized
param	- the device's parameter

Returns

0 in case of success, negative error code otherwise

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oa_tc6_put_rx_frame()

int oa_tc6_put_rx_frame	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_frame_buffer *	buffer )

Mark a frame buffer as used and ready to be rewritten.

Parameters

desc	- the OA TC6 descriptor.
buffer	- buffer containing the frame read by the user.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_put_tx_frame()

int oa_tc6_put_tx_frame	(	struct oa_tc6_desc *	desc,
		struct oa_tc6_frame_buffer *	buffer )

Mark a frame buffer as ready to be transmitted.

Parameters

desc	- the OA TC6 descriptor.
buffer	- buffer containing the frame to be transmitted.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_reg_read()

int oa_tc6_reg_read	(	struct oa_tc6_desc *	desc,
		uint32_t	addr,
		uint32_t *	val )

Read a register value.

Parameters

desc	- the OA TC6 descriptor.
addr	- Register address.
val	- Register value.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_reg_update()

int oa_tc6_reg_update	(	struct oa_tc6_desc *	desc,
		uint32_t	addr,
		uint32_t	val,
		uint32_t	mask )

Update a field inside a register.

Parameters

desc	- the OA TC6 descriptor.
addr	- Register address.
val	- Field value.
mask	- Bit mask corresponding to the register field.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_reg_write()

int oa_tc6_reg_write	(	struct oa_tc6_desc *	desc,
		uint32_t	addr,
		uint32_t	val )

Write a register value.

Parameters

desc	- the OA TC6 descriptor.
addr	- Register address.
val	- Register value.

Returns

0 in case of success, negative error code otherwise

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oa_tc6_remove()

int oa_tc6_remove

(

struct oa_tc6_desc *

desc

)

Free a device descriptor.

Parameters

desc	- the device descriptor to be removed.

Returns

0

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oa_tc6_thread()

int oa_tc6_thread

(

struct oa_tc6_desc *

desc

)

Transmit all the frames in the OA_BUFF_TX_READY state and receive the frames in the OA_BUFF_RX_COMPLETE state.

Parameters

desc	- the OA TC6 descriptor

Returns

0 in case of success, negative error code otherwise

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