dma.c File Reference

#include "dma.h"

Include dependency graph for dma.c:

Functions
void	dma_init (PL230_REGS_s *PL230_REGS, uint32_t base_ptr_address)
	This function initalizes the dma, waits if there is any current transaction, set dma structure addressm disable all the channels and enables the controller.
void	dma_channel_cfg (DMA_REGS_s *DMA_REGS, PL230_REGS_s *PL230_REGS, dma_channel_cfg_t *dma_channel_cfg, DMA_CHANNEL_E channel)
void	dma_channel_en_set (PL230_REGS_s *PL230_REGS, DMA_CHANNEL_E channel)
uint8_t	dma_channel_en_get (PL230_REGS_s *PL230_REGS, DMA_CHANNEL_E channel)
void	dma_channel_sw_trig (PL230_REGS_s *PL230_REGS, DMA_CHANNEL_E channel)
void	dma_channel_priority_cfg (DMA_REGS_s *DMA_REGS, DMA_ARBITRATION_DMA_RR_EN_E mode, uint16_t round_robin_mask)
	This function set the dma arbitration.
bool	dma_is_idle (PL230_REGS_s *PL230_REGS)
	This function check if dma fsm is in idle/stalled/done state.
void	dma_channel_en_clr (PL230_REGS_s *PL230_REGS, DMA_CHANNEL_E channel)

Function Documentation

dma_channel_cfg()

void dma_channel_cfg	(	DMA_REGS_s *	DMA_REGS,
		PL230_REGS_s *	PL230_REGS,
		dma_channel_cfg_t *	dma_channel_cfg,
		DMA_CHANNEL_E	channel )

References PL230_REGS_s::ALT_CTRL_BASE_PTR, DMA_REGS_s::CFG_0, DMA_REGS_s::CFG_1, dma_mem_channel_cfg_t::ctrl, PL230_REGS_s::CTRL_BASE_PTR, dma_mem_ctrl_cfg_t::cycle_ctrl, dma_channel_cfg(), DMA_SRC_INC_NO_INCR, DMA_STRIDE_MODE_LOOKUP_DST_ADDR, DMA_STRIDE_MODE_LOOKUP_SRC_ADDR, dma_mem_ctrl_cfg_t::dst_inc, dma_mem_ctrl_cfg_t::dst_prot_ctrl, dma_mem_ctrl_cfg_t::dst_size, DMA_REGS_s::FILL_MODE, DMA_REGS_s::FILL_MODE_CFG, dma_mem_ctrl_cfg_t::n_minus_1, dma_mem_ctrl_cfg_t::next_useburst, DMA_REPEATED_TRANSFER_ALTERNATE_SEL_u::packed_w, PL230_ALT_CTRL_BASE_PTR_u::packed_w, PL230_CTRL_BASE_PTR_u::packed_w, dma_mem_ctrl_cfg_t::r_power, dma_mem_channel_cfg_t::rdp, DMA_REGS_s::REPEATED_TRANSFER_ALTERNATE_SEL, DMA_REGS_s::REPEATED_TRANSFER_CHNL_0, DMA_REGS_s::REPEATED_TRANSFER_EN, dma_mem_channel_cfg_t::rsp, dma_mem_ctrl_cfg_t::src_inc, dma_mem_ctrl_cfg_t::src_prot_ctrl, dma_mem_ctrl_cfg_t::src_size, DMA_REGS_s::STRIDE_MODE, DMA_REGS_s::STRIDE_MODE_CFG_0, DMA_REGS_s::STRIDE_MODE_CFG_1, and DMA_REGS_s::STRIDE_MODE_CFG_2.

Referenced by dma_channel_cfg(), and dma_channel_cfg().

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dma_channel_en_set()

void dma_channel_en_set	(	PL230_REGS_s *	PL230_REGS,
		DMA_CHANNEL_E	channel )

References PL230_REGS_s::CHNL_ENABLE_SET, and PL230_CHNL_ENABLE_SET_u::packed_w.

dma_channel_en_get()

uint8_t dma_channel_en_get	(	PL230_REGS_s *	PL230_REGS,
		DMA_CHANNEL_E	channel )

References PL230_REGS_s::CHNL_ENABLE_SET, and PL230_CHNL_ENABLE_SET_u::packed_w.

dma_channel_sw_trig()

void dma_channel_sw_trig	(	PL230_REGS_s *	PL230_REGS,
		DMA_CHANNEL_E	channel )

References PL230_REGS_s::CHNL_SW_REQUEST, and PL230_CHNL_SW_REQUEST_u::packed_w.

dma_channel_en_clr()

void dma_channel_en_clr	(	PL230_REGS_s *	PL230_REGS,
		DMA_CHANNEL_E	channel )

References PL230_REGS_s::CHNL_ENABLE_CLR, and PL230_CHNL_ENABLE_CLR_u::packed_w.