dma_common.c File Reference

#include <libopencm3/efm32/dma.h>

Include dependency graph for dma_common.c:

Go to the source code of this file.

Macros
#define	CHANNEL_SUPPORT_LOOP(ch)   (((ch) == DMA_CH0) || ((ch) == DMA_CH1))

Functions
void	dma_enable_with_privileged_access (void)
	Enable DMA with privileged access. More...
void	dma_enable_with_unprivileged_access (void)
	Enable DMA with un-privileged access. More...
void	dma_enable (void)
	same as dma_enable_with_unprivileged_access() More...
void	dma_disable (void)
	Disable DMA. More...
void	dma_set_desc_address (uint32_t desc_base)
	Set channel's descriptor address. More...
bool	dma_get_wait_on_request_flag (enum dma_ch ch)
	Get channel wait on request status flag. More...
void	dma_generate_software_request (enum dma_ch ch)
	Generate a software request on channel. More...
void	dma_enable_burst_only (enum dma_ch ch)
	Enable channel burst only. More...
void	dma_enable_single_and_burst (enum dma_ch ch)
	Enable channel single and burst. More...
void	dma_enable_periph_request (enum dma_ch ch)
	Enable channel peripherial request. More...
void	dma_disable_periph_request (enum dma_ch ch)
	Disable channel peripherial request. More...
void	dma_enable_channel (enum dma_ch ch)
	Enable channel. More...
void	dma_disable_channel (enum dma_ch ch)
	Disable channel. More...
void	dma_disable_alternate_structure (enum dma_ch ch)
	Disable channel alternate structure. More...
void	dma_enable_alternate_structure (enum dma_ch ch)
	Enable channel alternate structure. More...
void	dma_enable_priority (enum dma_ch ch)
	Enable channel high priority. More...
void	dma_disable_priority (enum dma_ch ch)
	Disable channel high priority. More...
bool	dma_get_bus_error_flag (void)
	Get bus error flag. More...
void	dma_clear_bus_error_flag (void)
	Clear bus error flag. More...
bool	dma_get_request_flag (enum dma_ch ch)
	Get channel request flag. More...
bool	dma_get_bus_error_interrupt_flag (void)
	Get bus error interrupt flag. More...
bool	dma_get_done_interrupt_flag (enum dma_ch ch)
	Get channel done interrupt flag. More...
void	dma_set_bus_error_interrupt_flag (void)
	Set bus error interrupt flag. More...
void	dma_set_done_interrupt_flag (enum dma_ch ch)
	Set channel done interrupt flag. More...
void	dma_clear_bus_error_interrupt_flag (void)
	Clear bus error interrupt flag. More...
void	dma_clear_done_interrupt_flag (enum dma_ch ch)
	Clear channel done interrupt flag. More...
void	dma_enable_bus_error_interrupt (void)
	Enable bus error interrupt. More...
void	dma_disable_bus_error_interrupt (void)
	Disable bus error interrupt. More...
void	dma_enable_done_interrupt (enum dma_ch ch)
	Enable channel done interrupt. More...
void	dma_disable_done_interrupt (enum dma_ch ch)
	Disable channel done interrupt. More...
void	dma_set_source (enum dma_ch ch, uint32_t source)
	Set channel source. More...
void	dma_set_signal (enum dma_ch ch, uint32_t signal)
	Set channel source signal. More...
void	dma_channel_reset (enum dma_ch ch)
	Reset channel. More...
void	dma_set_loop_count (enum dma_ch ch, uint16_t count)
	Set channel loop width to ( count + 1) More...
void	dma_enable_loop (enum dma_ch ch)
	Enable channel loop. More...
void	dma_disable_loop (enum dma_ch ch)
	Disable channel loop. More...
void	dma_desc_set_dest_size (uint32_t desc_base, enum dma_ch ch, enum dma_mem size)
	Set desination size. More...
void	dma_desc_set_dest_inc (uint32_t desc_base, enum dma_ch ch, enum dma_mem inc)
	Set destination increment. More...
void	dma_desc_set_src_size (uint32_t desc_base, enum dma_ch ch, enum dma_mem size)
	Set source size. More...
void	dma_desc_set_src_inc (uint32_t desc_base, enum dma_ch ch, enum dma_mem inc)
	Set source increment. More...
void	dma_desc_set_r_power (uint32_t desc_base, enum dma_ch ch, enum dma_r_power r_power)
	Set R Power. More...
void	dma_desc_enable_next_useburst (uint32_t desc_base, enum dma_ch ch)
	Enable next useburst. More...
void	dma_desc_disable_next_useburst (uint32_t desc_base, enum dma_ch ch)
	Disable next useburst. More...
void	dma_desc_set_count (uint32_t desc_base, enum dma_ch ch, uint16_t count)
	Set number (count) of transfer to be performed. More...
void	dma_desc_set_user_data (uint32_t desc_base, enum dma_ch ch, uint32_t user_data)
	Store user data field in channel descriptor. More...
uint32_t	dma_desc_get_user_data (uint32_t desc_base, enum dma_ch ch)
	Extract user data field from channel descriptor. More...
static uint32_t	dma_calc_end_from_start (uint32_t start, uint8_t inc, uint16_t n_minus_1)
	Calculate end from start address. More...
void	dma_desc_set_src_address (uint32_t desc_base, enum dma_ch ch, uint32_t src_start)
	Assign Source address to DMA Channel. More...
void	dma_desc_set_dest_address (uint32_t desc_base, enum dma_ch ch, uint32_t dest_start)
	Assign Destination address to DMA Channel. More...
void	dma_desc_set_mode (uint32_t desc_base, enum dma_ch ch, enum dma_mode mode)
	Set the channel mode ("Cycle control") More...