hpm_dma_mgr.c File Reference

#include <string.h>
#include "hpm_dma_mgr.h"
#include "hpm_soc.h"

Macros
#define	HPM_DMA_MGR   (&s_dma_mngr_ctx)

Typedefs
typedef struct _dma_instance_info	dma_chn_info_t
typedef struct _dma_channel_context	dma_chn_context_t
	DMA Channel Context Structure. More...
typedef struct _dma_mgr_context	dma_mgr_context_t
	DMA Manager Context Structure. More...

Functions
static dma_chn_context_t *	dma_mgr_search_chn_context (const dma_resource_t *resource)
	Search DMA channel context for specified DMA channel resource. More...
static uint32_t	dma_mgr_enter_critical (void)
static void	dma_mgr_exit_critical (uint32_t level)
void	dma_mgr_isr_handler (DMA_Type *ptr, uint32_t instance)
	DMA Manager ISR handler. More...
void	dma0_isr (void)
void	dma_mgr_init (void)
	Initialize DMA Manager Context. More...
hpm_stat_t	dma_mgr_request_resource (dma_resource_t *resource)
	Request DMA resource from DMA Manager. More...
hpm_stat_t	dma_mgr_release_resource (const dma_resource_t *resource)
	Release DMA resource. More...
hpm_stat_t	dma_mgr_enable_dma_irq_with_priority (const dma_resource_t *resource, uint32_t priority)
	Enable DMA interrupt with priority. More...
hpm_stat_t	dma_mgr_disable_dma_irq (const dma_resource_t *resource)
	Disable DMA interrupt NOTE: Each DMA instance consists of several DMA channels, disabling the DMA interrupt will disable the global DMA interrupt for all DMA channels. Please be aware of the impact. More...
hpm_stat_t	dma_mgr_install_chn_tc_callback (const dma_resource_t *resource, dma_mgr_chn_cb_t callback, void *user_data)
	Install Interrupt Callback for DMA channel transfer complete. More...
hpm_stat_t	dma_mgr_install_chn_half_tc_callback (const dma_resource_t *resource, dma_mgr_chn_cb_t callback, void *user_data)
	Install Interrupt Callback for DMA channel half transfer complete. More...
hpm_stat_t	dma_mgr_install_chn_error_callback (const dma_resource_t *resource, dma_mgr_chn_cb_t callback, void *user_data)
	Install Interrupt Callback for DMA channel transfer error. More...
hpm_stat_t	dma_mgr_install_chn_abort_callback (const dma_resource_t *resource, dma_mgr_chn_cb_t callback, void *user_data)
	Install Interrupt Callback for DMA channel transfer abort. More...
void	dma_mgr_get_default_chn_config (dma_mgr_chn_conf_t *config)
	Get DMA channel default config. More...
hpm_stat_t	dma_mgr_setup_channel (const dma_resource_t *resource, dma_mgr_chn_conf_t *config)
	Setup channel config. More...
hpm_stat_t	dma_mgr_config_linked_descriptor (const dma_resource_t *resource, dma_mgr_chn_conf_t *config, dma_mgr_linked_descriptor_t *descriptor)
	Setup chain linked descriptor config. More...
hpm_stat_t	dma_mgr_enable_channel (const dma_resource_t *resource)
	Enable DMA channel, start transfer. More...
hpm_stat_t	dma_mgr_disable_channel (const dma_resource_t *resource)
	Disable DMA channel. More...
hpm_stat_t	dma_mgr_check_chn_enable (const dma_resource_t *resource, bool *enable)
	Check DMA channel enable status. More...
hpm_stat_t	dma_mgr_enable_chn_irq (const dma_resource_t *resource, uint32_t irq_mask)
	Enable DMA channel interrupt. More...
hpm_stat_t	dma_mgr_disable_chn_irq (const dma_resource_t *resource, uint32_t irq_mask)
	Disable DMA channel interrupt. More...
hpm_stat_t	dma_mgr_set_chn_priority (const dma_resource_t *resource, uint8_t priority)
	Set DMA channel priority. More...
hpm_stat_t	dma_mgr_set_chn_src_work_mode (const dma_resource_t *resource, uint8_t mode)
	Set DMA channel source work mode. More...
hpm_stat_t	dma_mgr_set_chn_dst_work_mode (const dma_resource_t *resource, uint8_t mode)
	Set DMA channel destination work mode. More...
hpm_stat_t	dma_mgr_set_chn_src_burst_size (const dma_resource_t *resource, uint8_t burstsize)
	Set DMA channel source burst size. More...
hpm_stat_t	dma_mgr_get_chn_remaining_transize (const dma_resource_t *resource, uint32_t *size)
	Get DMA channel remaining transfer size. More...
hpm_stat_t	dma_mgr_set_chn_transize (const dma_resource_t *resource, uint32_t size)
	Set DMA channel transfer size. More...
hpm_stat_t	dma_mgr_set_chn_src_width (const dma_resource_t *resource, uint8_t width)
	Set DMA channel source width. More...
hpm_stat_t	dma_mgr_set_chn_dst_width (const dma_resource_t *resource, uint8_t width)
	Set DMA channel destination width. More...
hpm_stat_t	dma_mgr_set_chn_src_addr (const dma_resource_t *resource, uint32_t addr)
	Set DMA channel source address. More...
hpm_stat_t	dma_mgr_set_chn_dst_addr (const dma_resource_t *resource, uint32_t addr)
	Set DMA channel destination address. More...
hpm_stat_t	dma_mgr_set_chn_src_addr_ctrl (const dma_resource_t *resource, uint8_t addr_ctrl)
	Set DMA channel source address control mode. More...
hpm_stat_t	dma_mgr_set_chn_dst_addr_ctrl (const dma_resource_t *resource, uint8_t addr_ctrl)
	Set DMA channel destination address control mode. More...
hpm_stat_t	dma_mgr_set_chn_infinite_loop_mode (const dma_resource_t *resource, bool infinite_loop)
	Set DMA channel infinite loop mode. Attention: only DMAV2 support. More...
hpm_stat_t	dma_mgr_set_chn_src_busrt_option (const dma_resource_t *resource, uint8_t burst_opt)
	Set DMA channel source burst option. Attention: only DMAV2 support. More...
hpm_stat_t	dma_mgr_set_chn_handshake_option (const dma_resource_t *resource, uint8_t handshake_opt)
	Set DMA channel handshake option. Attention: only DMAV2 support. More...
hpm_stat_t	dma_mgr_abort_chn_transfer (const dma_resource_t *resource)
	Abort DMA channel transfer. More...
hpm_stat_t	dma_mgr_check_chn_transfer_status (const dma_resource_t *resource, uint32_t *status)
	Check DMA channel transfer status. More...
hpm_stat_t	dma_mgr_set_source_burst_in_fixed_transize_enable (const dma_resource_t *resource, bool enable)
	Set DMA channel source burst in fixed transfer size enable or disable. More...
hpm_stat_t	dma_mgr_set_destination_burst_in_fix_transize_enable (const dma_resource_t *resource, bool enable)
	Set DMA channel destination burst in fixed transfer size enable or disable. More...
hpm_stat_t	dma_mgr_set_swap_mode (const dma_resource_t *resource, uint8_t swap_mode)
	Set DMA channel swap mode. More...
hpm_stat_t	dma_mgr_set_swap_table (const dma_resource_t *resource, uint32_t swap_table)
	Set DMA channel swap table. More...

Variables
static dma_mgr_context_t	s_dma_mngr_ctx

Macro Definition Documentation

HPM_DMA_MGR

#define HPM_DMA_MGR   (&s_dma_mngr_ctx)

Typedef Documentation

dma_chn_context_t

typedef struct _dma_channel_context dma_chn_context_t

DMA Channel Context Structure.

dma_chn_info_t

typedef struct _dma_instance_info dma_chn_info_t

dma_mgr_context_t

typedef struct _dma_mgr_context dma_mgr_context_t

DMA Manager Context Structure.

Function Documentation

dma0_isr()

void dma0_isr

(

void

)

dma_mgr_abort_chn_transfer()

hpm_stat_t dma_mgr_abort_chn_transfer

(

const dma_resource_t *

resource

)

Abort DMA channel transfer.

Parameters

[in]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_check_chn_enable()

hpm_stat_t dma_mgr_check_chn_enable	(	const dma_resource_t *	resource,
		bool *	enable
	)

Check DMA channel enable status.

Parameters

[in]	resource	DMA resource
[out]	enable	enable status

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_check_chn_transfer_status()

hpm_stat_t dma_mgr_check_chn_transfer_status	(	const dma_resource_t *	resource,
		uint32_t *	status
	)

Check DMA channel transfer status.

Parameters

[in]	resource	DMA resource
[out]	status	transfer status DMA_MGR_CHANNEL_STATUS_ONGOING if transfer is still ongoing DMA_MGR_CHANNEL_STATUS_ERROR if any error occurred during transferring DMA_MGR_CHANNEL_STATUS_ABORT if transfer is aborted DMA_MGR_CHANNEL_STATUS_TC if transfer is finished without error DMA_MGR_CHANNEL_STATUS_HALF_TC if half transfer complete without error. Attention: only DMAV2 support

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_config_linked_descriptor()

hpm_stat_t dma_mgr_config_linked_descriptor	(	const dma_resource_t *	resource,
		dma_mgr_chn_conf_t *	config,
		dma_mgr_linked_descriptor_t *	descriptor
	)

Setup chain linked descriptor config.

Parameters

[in]	resource	DMA resource
[in]	config	DMA channel config
[out]	descriptor	linked descriptor config data pointer

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_disable_channel()

hpm_stat_t dma_mgr_disable_channel

(

const dma_resource_t *

resource

)

Disable DMA channel.

Parameters

[in]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_disable_chn_irq()

hpm_stat_t dma_mgr_disable_chn_irq	(	const dma_resource_t *	resource,
		uint32_t	irq_mask
	)

Disable DMA channel interrupt.

Parameters

[in]	resource	DMA resource
[in]	irq_mask	irq mask, refer to DMA_MGR_INTERRUPT_MASK_xxxx

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_disable_dma_irq()

hpm_stat_t dma_mgr_disable_dma_irq

(

const dma_resource_t *

resource

)

Disable DMA interrupt NOTE: Each DMA instance consists of several DMA channels, disabling the DMA interrupt will disable the global DMA interrupt for all DMA channels. Please be aware of the impact.

Parameters

[in]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_enable_channel()

hpm_stat_t dma_mgr_enable_channel

(

const dma_resource_t *

resource

)

Enable DMA channel, start transfer.

Parameters

[in]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_enable_chn_irq()

hpm_stat_t dma_mgr_enable_chn_irq	(	const dma_resource_t *	resource,
		uint32_t	irq_mask
	)

Enable DMA channel interrupt.

Parameters

[in]	resource	DMA resource
[in]	irq_mask	irq mask, refer to DMA_MGR_INTERRUPT_MASK_xxxx

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_enable_dma_irq_with_priority()

hpm_stat_t dma_mgr_enable_dma_irq_with_priority	(	const dma_resource_t *	resource,
		uint32_t	priority
	)

Enable DMA interrupt with priority.

Parameters

[in]	resource	DMA resource
[in]	priority	Interrupt Priority

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_enter_critical()

static uint32_t dma_mgr_enter_critical ( void  )

static

dma_mgr_exit_critical()

static void dma_mgr_exit_critical ( uint32_t  level )

static

dma_mgr_get_chn_remaining_transize()

hpm_stat_t dma_mgr_get_chn_remaining_transize	(	const dma_resource_t *	resource,
		uint32_t *	size
	)

Get DMA channel remaining transfer size.

Parameters

[in]	resource	DMA resource
[out]	size	remaining transfer size of the channel.

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_get_default_chn_config()

void dma_mgr_get_default_chn_config

(

dma_mgr_chn_conf_t *

config

)

Get DMA channel default config.

Parameters

[out]

config

config data pointer

dma_mgr_init()

void dma_mgr_init

(

void

)

Initialize DMA Manager Context.

dma_mgr_install_chn_abort_callback()

hpm_stat_t dma_mgr_install_chn_abort_callback	(	const dma_resource_t *	resource,
		dma_mgr_chn_cb_t	callback,
		void *	user_data
	)

Install Interrupt Callback for DMA channel transfer abort.

Parameters

[in]	resource	DMA resource
[in]	callback	Interrupt callback for DMA resource
[in]	user_data	User data used in the callback

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_install_chn_error_callback()

hpm_stat_t dma_mgr_install_chn_error_callback	(	const dma_resource_t *	resource,
		dma_mgr_chn_cb_t	callback,
		void *	user_data
	)

Install Interrupt Callback for DMA channel transfer error.

Parameters

[in]	resource	DMA resource
[in]	callback	Interrupt callback for DMA resource
[in]	user_data	User data used in the callback

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_install_chn_half_tc_callback()

hpm_stat_t dma_mgr_install_chn_half_tc_callback	(	const dma_resource_t *	resource,
		dma_mgr_chn_cb_t	callback,
		void *	user_data
	)

Install Interrupt Callback for DMA channel half transfer complete.

Parameters

[in]	resource	DMA resource
[in]	callback	Interrupt callback for DMA resource
[in]	user_data	User data used in the callback

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_install_chn_tc_callback()

hpm_stat_t dma_mgr_install_chn_tc_callback	(	const dma_resource_t *	resource,
		dma_mgr_chn_cb_t	callback,
		void *	user_data
	)

Install Interrupt Callback for DMA channel transfer complete.

Parameters

[in]	resource	DMA resource
[in]	callback	Interrupt callback for DMA resource
[in]	user_data	User data used in the callback

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_isr_handler()

void dma_mgr_isr_handler	(	DMA_Type *	ptr,
		uint32_t	instance
	)

DMA Manager ISR handler.

dma_mgr_release_resource()

hpm_stat_t dma_mgr_release_resource

(

const dma_resource_t *

resource

)

Release DMA resource.

Parameters

[in]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if the parameter is invalid

dma_mgr_request_resource()

hpm_stat_t dma_mgr_request_resource

(

dma_resource_t *

resource

)

Request DMA resource from DMA Manager.

Parameters

[out]

resource

DMA resource

Return values

status_success	if no error occurred
status_invalid_argument	if the parameter is invalid
status_dma_mgr_no_resource	if all DMA channels are occupied;

dma_mgr_search_chn_context()

static dma_chn_context_t * dma_mgr_search_chn_context ( const dma_resource_t *  resource )

static

Search DMA channel context for specified DMA channel resource.

Parameters

[in]

resource

DMA Channel resource

Returns

The request DMA channel context if resource is valid or NULL if resource in invalid

dma_mgr_set_chn_dst_addr()

hpm_stat_t dma_mgr_set_chn_dst_addr	(	const dma_resource_t *	resource,
		uint32_t	addr
	)

Set DMA channel destination address.

Parameters

[in]	resource	DMA resource
[in]	addr	destination address

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_dst_addr_ctrl()

hpm_stat_t dma_mgr_set_chn_dst_addr_ctrl	(	const dma_resource_t *	resource,
		uint8_t	addr_ctrl
	)

Set DMA channel destination address control mode.

Parameters

[in]	resource	DMA resource
[in]	addr_ctrl	destination address control mode DMA_MGR_ADDRESS_CONTROL_INCREMENT DMA_MGR_ADDRESS_CONTROL_DECREMENT DMA_MGR_ADDRESS_CONTROL_FIXED

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_dst_width()

hpm_stat_t dma_mgr_set_chn_dst_width	(	const dma_resource_t *	resource,
		uint8_t	width
	)

Set DMA channel destination width.

Parameters

[in]	resource	DMA resource
[in]	width	transfer destination width of the channel DMA_MGR_TRANSFER_WIDTH_BYTE DMA_MGR_TRANSFER_WIDTH_HALF_WORD DMA_MGR_TRANSFER_WIDTH_WORD DMA_MGR_TRANSFER_WIDTH_DOUBLE_WORD

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_dst_work_mode()

hpm_stat_t dma_mgr_set_chn_dst_work_mode	(	const dma_resource_t *	resource,
		uint8_t	mode
	)

Set DMA channel destination work mode.

Parameters

[in]	resource	DMA resource
[in]	mode	DMA destination work mode DMA_MGR_HANDSHAKE_MODE_NORMAL DMA_MGR_HANDSHAKE_MODE_HANDSHAKE

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_handshake_option()

hpm_stat_t dma_mgr_set_chn_handshake_option	(	const dma_resource_t *	resource,
		uint8_t	handshake_opt
	)

Set DMA channel handshake option. Attention: only DMAV2 support.

Parameters

[in]	resource	DMA resource
[in]	handshake_opt	handshake option DMA_HANDSHAKE_OPT_ONE_BURST DMA_HANDSHAKE_OPT_ALL_TRANSIZE

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_infinite_loop_mode()

hpm_stat_t dma_mgr_set_chn_infinite_loop_mode	(	const dma_resource_t *	resource,
		bool	infinite_loop
	)

Set DMA channel infinite loop mode. Attention: only DMAV2 support.

Parameters

[in]	resource	DMA resource
[in]	infinite_loop	false - normal mode(single times mode); true - infinite loop mode(cycle mode)

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_priority()

hpm_stat_t dma_mgr_set_chn_priority	(	const dma_resource_t *	resource,
		uint8_t	priority
	)

Set DMA channel priority.

Parameters

[in]	resource	DMA resource
[in]	priority	DMA channel priority DMA_MGR_CHANNEL_PRIORITY_LOW DMA_MGR_CHANNEL_PRIORITY_HIGH

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_addr()

hpm_stat_t dma_mgr_set_chn_src_addr	(	const dma_resource_t *	resource,
		uint32_t	addr
	)

Set DMA channel source address.

Parameters

[in]	resource	DMA resource
[in]	addr	source address

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_addr_ctrl()

hpm_stat_t dma_mgr_set_chn_src_addr_ctrl	(	const dma_resource_t *	resource,
		uint8_t	addr_ctrl
	)

Set DMA channel source address control mode.

Parameters

[in]	resource	DMA resource
[in]	addr_ctrl	source address control mode DMA_MGR_ADDRESS_CONTROL_INCREMENT DMA_MGR_ADDRESS_CONTROL_DECREMENT DMA_MGR_ADDRESS_CONTROL_FIXED

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_burst_size()

hpm_stat_t dma_mgr_set_chn_src_burst_size	(	const dma_resource_t *	resource,
		uint8_t	burstsize
	)

Set DMA channel source burst size.

Parameters

[in]	resource	DMA resource
[in]	burstsize	DMA source burst size when BURSTOPT is 0, please reference follows: DMA_MGR_NUM_TRANSFER_PER_BURST_1T DMA_MGR_NUM_TRANSFER_PER_BURST_2T DMA_MGR_NUM_TRANSFER_PER_BURST_4T DMA_MGR_NUM_TRANSFER_PER_BURST_8T DMA_MGR_NUM_TRANSFER_PER_BURST_16T DMA_MGR_NUM_TRANSFER_PER_BURST_32T DMA_MGR_NUM_TRANSFER_PER_BURST_64T DMA_MGR_NUM_TRANSFER_PER_BURST_128T DMA_MGR_NUM_TRANSFER_PER_BURST_256T DMA_MGR_NUM_TRANSFER_PER_BURST_512T DMA_MGR_NUM_TRANSFER_PER_BURST_1024T when BURSTOPT is 1, burst size is (burstsize + 1). Attention: only DMAV2 support

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_busrt_option()

hpm_stat_t dma_mgr_set_chn_src_busrt_option	(	const dma_resource_t *	resource,
		uint8_t	burst_opt
	)

Set DMA channel source burst option. Attention: only DMAV2 support.

Parameters

[in]	resource	DMA resource
[in]	burst_opt	burst option DMA_MGR_SRC_BURST_OPT_STANDAND_SIZE DMA_MGR_SRC_BURST_OPT_CUSTOM_SIZE

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_width()

hpm_stat_t dma_mgr_set_chn_src_width	(	const dma_resource_t *	resource,
		uint8_t	width
	)

Set DMA channel source width.

Parameters

[in]	resource	DMA resource
[in]	width	transfer source width of the channel DMA_MGR_TRANSFER_WIDTH_BYTE DMA_MGR_TRANSFER_WIDTH_HALF_WORD DMA_MGR_TRANSFER_WIDTH_WORD DMA_MGR_TRANSFER_WIDTH_DOUBLE_WORD

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_src_work_mode()

hpm_stat_t dma_mgr_set_chn_src_work_mode	(	const dma_resource_t *	resource,
		uint8_t	mode
	)

Set DMA channel source work mode.

Parameters

[in]	resource	DMA resource
[in]	mode	DMA source work mode DMA_MGR_HANDSHAKE_MODE_NORMAL DMA_MGR_HANDSHAKE_MODE_HANDSHAKE

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_chn_transize()

hpm_stat_t dma_mgr_set_chn_transize	(	const dma_resource_t *	resource,
		uint32_t	size
	)

Set DMA channel transfer size.

Parameters

[in]	resource	DMA resource
[in]	size	transfer size of the channel.

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

dma_mgr_set_destination_burst_in_fix_transize_enable()

hpm_stat_t dma_mgr_set_destination_burst_in_fix_transize_enable	(	const dma_resource_t *	resource,
		bool	enable
	)

Set DMA channel destination burst in fixed transfer size enable or disable.

Parameters

[in]	resource	DMA resource
[in]	enable	false - disable; true - enable

dma_mgr_set_source_burst_in_fixed_transize_enable()

hpm_stat_t dma_mgr_set_source_burst_in_fixed_transize_enable	(	const dma_resource_t *	resource,
		bool	enable
	)

Set DMA channel source burst in fixed transfer size enable or disable.

Parameters

[in]	resource	DMA resource
[in]	enable	false - disable; true - enable

dma_mgr_set_swap_mode()

hpm_stat_t dma_mgr_set_swap_mode	(	const dma_resource_t *	resource,
		uint8_t	swap_mode
	)

Set DMA channel swap mode.

Parameters

[in]	resource	DMA resource
[in]	swap_mode	swap mode DMA_MGR_SWAP_MODE_TABLE DMA_MGR_SWAP_MODE_BYTE DMA_MGR_SWAP_MODE_HALF_WORD DMA_MGR_SWAP_MODE_WORD

dma_mgr_set_swap_table()

hpm_stat_t dma_mgr_set_swap_table	(	const dma_resource_t *	resource,
		uint32_t	swap_table
	)

Set DMA channel swap table.

Parameters

[in]	resource	DMA resource
[in]	swap_table	swap table

dma_mgr_setup_channel()

hpm_stat_t dma_mgr_setup_channel	(	const dma_resource_t *	resource,
		dma_mgr_chn_conf_t *	config
	)

Setup channel config.

Parameters

[in]	resource	DMA resource
[in]	config	DMA channel config

Return values

status_success	if no error occurred
status_invalid_argument	if any parameters are invalid

Variable Documentation

s_dma_mngr_ctx

dma_mgr_context_t s_dma_mngr_ctx

static