Functions - DMA

Macros
#define	ws_dma_set_source(src)
#define	ws_sdma_set_source(src)

Functions
static void	ws_dma_set_sourcep (const void __far *src)
static void	ws_dma_set_sourcei (uint32_t src)
static void	ws_sdma_set_sourcep (const void __far *src)
static void	ws_sdma_set_sourcei (uint32_t src)
static void	ws_sdma_set_length (uint32_t length)
void	ws_dma_copy_words_linear (void __wf_iram *dest, uint32_t src, uint16_t length)
	Copy words from a source linear address to a destination pointer using DMA.
static void	ws_dma_copy_words (void __wf_iram *dest, const void __far *src, uint16_t length)
	Copy words from a source pointer to a destination pointer using DMA.
void	ws_dma_opt_copy_words (void __wf_iram *dest, const void __far *src, uint16_t length)
	Copy words from a source pointer to a destination pointer, using DMA if present.

Detailed Description

Macro Definition Documentation

ws_dma_set_source

#define ws_dma_set_source

(

src

)

Value:

    _Generic((src), \
    int8_t: ws_dma_set_sourcei, \
    int16_t: ws_dma_set_sourcei, \
    int32_t: ws_dma_set_sourcei, \
    uint8_t: ws_dma_set_sourcei, \
    uint16_t: ws_dma_set_sourcei, \
    uint32_t: ws_dma_set_sourcei, \
    default: ws_dma_set_sourcep \
)(src)

Definition at line 50 of file dma.h.

ws_sdma_set_source

#define ws_sdma_set_source

(

src

)

Value:

    _Generic((src), \
    int8_t: ws_sdma_set_sourcei, \
    int16_t: ws_sdma_set_sourcei, \
    int32_t: ws_sdma_set_sourcei, \
    uint8_t: ws_sdma_set_sourcei, \
    uint16_t: ws_sdma_set_sourcei, \
    uint32_t: ws_sdma_set_sourcei, \
    default: ws_sdma_set_sourcep \
)(src)

Definition at line 70 of file dma.h.

Function Documentation

ws_dma_copy_words()

static void ws_dma_copy_words ( void __wf_iram * dest, const void __far * src, uint16_t length )

inlinestatic

Copy words from a source pointer to a destination pointer using DMA.

Note that this only works if Color mode is enabled - see system_is_color

Parameters

dest	Destination pointer, in RAM.
src	Source pointer, in any location.
length	Length, in bytes. Must be a multiple of 2.

Definition at line 105 of file dma.h.

ws_dma_copy_words_linear()

void ws_dma_copy_words_linear	(	void __wf_iram *	dest,
		uint32_t	src,
		uint16_t	length )

Copy words from a source linear address to a destination pointer using DMA.

Note that this only works if Color mode is enabled - see system_is_color

Parameters

dest	Destination pointer, in RAM.
src	Source linear (20-bit) address.
length	Length, in bytes. Must be a multiple of 2.

ws_dma_opt_copy_words()

void ws_dma_opt_copy_words	(	void __wf_iram *	dest,
		const void __far *	src,
		uint16_t	length )

Copy words from a source pointer to a destination pointer, using DMA if present.

Parameters

dest	Destination pointer, in RAM.
src	Source pointer, in any location.
length	Length, in bytes. Must be a multiple of 2.

ws_dma_set_sourcei()

static void ws_dma_set_sourcei ( uint32_t src )

inlinestatic

Definition at line 45 of file dma.h.

ws_dma_set_sourcep()

static void ws_dma_set_sourcep ( const void __far * src )

inlinestatic

Definition at line 40 of file dma.h.

ws_sdma_set_length()

static void ws_sdma_set_length ( uint32_t length )

inlinestatic

Definition at line 80 of file dma.h.

ws_sdma_set_sourcei()

static void ws_sdma_set_sourcei ( uint32_t src )

inlinestatic

Definition at line 65 of file dma.h.

ws_sdma_set_sourcep()

static void ws_sdma_set_sourcep ( const void __far * src )

inlinestatic

Definition at line 60 of file dma.h.