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author | Nebuleon Fumika | 2013-02-03 05:59:48 -0500 |
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committer | Nebuleon Fumika | 2013-02-03 05:59:48 -0500 |
commit | 461f2406555faaee7191871390192d06625f5a81 (patch) | |
tree | edbbc706e1b565855c2ae37289a622429b454988 /sdk-modifications | |
parent | fd92545013ed91d2867e1e180a9b86611eb19f9c (diff) | |
download | snes9x2005-461f2406555faaee7191871390192d06625f5a81.tar.gz snes9x2005-461f2406555faaee7191871390192d06625f5a81.tar.bz2 snes9x2005-461f2406555faaee7191871390192d06625f5a81.zip |
Fix a name clash between Snes9x's dma.h and the DS2 dma.h by renaming the DS2 dma.h to ds2_dma.h.
Add preliminary support for drawing emulated screens with DS2 DMA.
Diffstat (limited to 'sdk-modifications')
-rw-r--r-- | sdk-modifications/include/ds2_dma.h | 138 | ||||
-rw-r--r-- | sdk-modifications/libsrc/dma/dma.h | 46 | ||||
-rw-r--r-- | sdk-modifications/libsrc/dma/dmacopy.c | 2 | ||||
-rw-r--r-- | sdk-modifications/libsrc/dma/ds2_dma.h (renamed from sdk-modifications/include/dma.h) | 8 |
4 files changed, 43 insertions, 151 deletions
diff --git a/sdk-modifications/include/ds2_dma.h b/sdk-modifications/include/ds2_dma.h index c7cd267..491df0e 100644 --- a/sdk-modifications/include/ds2_dma.h +++ b/sdk-modifications/include/ds2_dma.h @@ -1,120 +1,50 @@ -#ifndef _DS2_DMA_H__ -#define _DS2_DMA_H__ +#ifndef __DMA_H__ +#define __DMA_H__ #ifdef __cplusplus extern "C" { #endif - -#define MAX_DMA_NUM 6 /* max 6 channels */ - - -// DMA request source register -#define DMAC_DRSR_RS_BIT 0 -#define DMAC_DRSR_RS_AUTO (8 << DMAC_DRSR_RS_BIT) - - -// DMA channel command register -#define DMAC_DCMD_SAI (1 << 23) /* source address increment */ -#define DMAC_DCMD_DAI (1 << 22) /* dest address increment */ - -#define DMAC_DCMD_SWDH_BIT 14 /* source port width */ -#define DMAC_DCMD_SWDH_32 (0 << DMAC_DCMD_SWDH_BIT) -#define DMAC_DCMD_SWDH_8 (1 << DMAC_DCMD_SWDH_BIT) -#define DMAC_DCMD_SWDH_16 (2 << DMAC_DCMD_SWDH_BIT) - -#define DMAC_DCMD_DWDH_BIT 12 /* dest port width */ -#define DMAC_DCMD_DWDH_32 (0 << DMAC_DCMD_DWDH_BIT) -#define DMAC_DCMD_DWDH_8 (1 << DMAC_DCMD_DWDH_BIT) - #define DMAC_DCMD_DWDH_16 (2 << DMAC_DCMD_DWDH_BIT) - -#define DMAC_DCMD_DS_BIT 8 /* transfer data size of a data unit */ -#define DMAC_DCMD_DS_32BIT (0 << DMAC_DCMD_DS_BIT) -#define DMAC_DCMD_DS_8BIT (1 << DMAC_DCMD_DS_BIT) -#define DMAC_DCMD_DS_16BIT (2 << DMAC_DCMD_DS_BIT) -#define DMAC_DCMD_DS_16BYTE (3 << DMAC_DCMD_DS_BIT) -#define DMAC_DCMD_DS_32BYTE (4 << DMAC_DCMD_DS_BIT) - -#define DMAC_DCMD_TM (1 << 7) /* transfer mode: 0-single 1-block */ - - -//detect if channel has completed job -#define DMAC_DCCSR_TT (1 << 3) /* transfer terminated */ -#define DMAC_BASE 0xB3020000 -#define REG32(addr) *((volatile u32 *)(addr)) -#define DMAC_DCCSR(n) (DMAC_BASE + (0x10 + (n) * 0x20)) /* DMA control/status */ -#define REG_DMAC_DCCSR(n) REG32(DMAC_DCCSR((n))) - -#define ds2_DMA_isBusy(n) \ - !( REG_DMAC_DCCSR((n)) & DMAC_DCCSR_TT ) - - -/* -Copy modes - -*/ - -#define DMA_MODE32BYTE DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | \ - DMAC_DCMD_DS_32BYTE | DMAC_DCMD_TM - -#define DMA_MODE16BYTE DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | \ - DMAC_DCMD_DS_16BYTE | DMAC_DCMD_TM - -#define DMA_MODE32BIT DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | \ - DMAC_DCMD_DS_32BIT - -#define DMA_MODE16BIT DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | \ - DMAC_DCMD_DS_16BIT - -#define DMA_MODE8BIT DMAC_DCMD_SWDH_8 | DMAC_DCMD_DWDH_8 | \ - DMAC_DCMD_DS_8BIT | DMAC_DCMD_TM - -#define DMA_MODECOPY DMAC_DCMD_SAI - - - -extern int _dmaCopy(int ch, void *dest, void *src, unsigned int size, unsigned int flags); - -//copy from 32 bit source to 32 bit dest -//data must be 32 byte aligned -#define ds2_DMAcopy_32Byte(ch, dest, src, size)\ - _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE32BYTE) - -//copy from 16 bit source to 16 bit dest -//data must be 16 byte aligned -#define ds2_DMAcopy_16Byte(ch, dest, src, size)\ - _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE16BYTE); - -//copy from 32 bit source to 32 bit dest -//data must be 32 bit aligned -#define ds2_DMAcopy_32Bit(ch, dest, src, size)\ - _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE32BIT); - -//copy from 16 bit source to 16 bit dest -//data must be 16 bit aligned -#define ds2_DMAcopy_16Bit(ch, dest, src, size)\ - _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE16BIT) - -//copy from 8 bit source to 8 bit dest -//data must be 8 bit aligned -#define ds2_DMAcopy_8Bit(ch, dest, src, size)\ - _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE8BIT) - - +//register a DMA transfer request +//ch: channel id request, there are 6 channles, +//irq_handler: the DMA interruption handle +//arg: argument to the handle +//mode: DMA mode, such as port width, address increased/fixed, and so on +//type: DMA request type +extern int dma_request(int ch, void (*irq_handler)(unsigned int), unsigned int arg, + unsigned int mode, unsigned int type); + +//start DMA transfer, must request a DMA first +//ch: channel id +//srcAddr: DMA source address +//dstAddr: DMA destination address +//count: DMA transfer count, the total bytes due the mode in dma_request +extern void dma_start(int ch, unsigned int srcAddr, unsigned int dstAddr, + unsigned int count); //Stop DMA transfer extern void dma_stop(int ch); -#define ds2_DMA_stop(ch)\ - dma_stop(ch) - //Wait DMA transfer over extern int dma_wait_finish(int ch); -#define ds2_DMA_wait(ch)\ - dma_wait_finish(ch) - +/* + * Copy 'size' bytes from src to dest, in blocks of 32 bytes. + * size is in bytes and must be a multiple of 32. + * Both src and dest must be aligned to 32 bytes. + * Returns 0 on failure, non-zero on success. + */ +extern int dma_copy32Byte(int ch, void *dest, void *src, unsigned int size); +// Blocks of 16 bytes, aligned to 16 bytes +extern int dma_copy16Byte(int ch, void *dest, void *src, unsigned int size); +// Blocks of 4 bytes, aligned to 4 bytes +extern int dma_copy32Bit(int ch, void *dest, void *src, unsigned int size); +// Blocks of 2 bytes, aligned to 2 bytes +extern int dma_copy16Bit(int ch, void *dest, void *src, unsigned int size); +extern int dma_isBusy(int ch); +extern int dma_isFree(int ch); +extern int dma_getFree(void); #ifdef __cplusplus } diff --git a/sdk-modifications/libsrc/dma/dma.h b/sdk-modifications/libsrc/dma/dma.h deleted file mode 100644 index f6ff230..0000000 --- a/sdk-modifications/libsrc/dma/dma.h +++ /dev/null @@ -1,46 +0,0 @@ -#ifndef __DMA_H__ -#define __DMA_H__ - -//register a DMA transfer request -//ch: channel id request, there are 6 channles, -//irq_handler: the DMA interruption handle -//arg: argument to the handle -//mode: DMA mode, such as port width, address increased/fixed, and so on -//type: DMA request type -extern int dma_request(int ch, void (*irq_handler)(unsigned int), unsigned int arg, - unsigned int mode, unsigned int type); - -//start DMA transfer, must request a DMA first -//ch: channel id -//srcAddr: DMA source address -//dstAddr: DMA destination address -//count: DMA transfer count, the total bytes due the mode in dma_request -extern void dma_start(int ch, unsigned int srcAddr, unsigned int dstAddr, - unsigned int count); - -//Stop DMA transfer -extern void dma_stop(int ch); - -//Wait DMA transfer over -extern int dma_wait_finish(int ch); - - -/* - * Copy 'size' bytes from src to dest, in blocks of 32 bytes. - * size is in bytes and must be a multiple of 32. - * Both src and dest must be aligned to 32 bytes. - * Returns 0 on failure, non-zero on success. - */ -extern int dma_copy32Byte(int ch, void *dest, void *src, unsigned int size); -// Blocks of 16 bytes, aligned to 16 bytes -extern int dma_copy16Byte(int ch, void *dest, void *src, unsigned int size); -// Blocks of 4 bytes, aligned to 4 bytes -extern int dma_copy32Bit(int ch, void *dest, void *src, unsigned int size); -// Blocks of 2 bytes, aligned to 2 bytes -extern int dma_copy16Bit(int ch, void *dest, void *src, unsigned int size); -extern int dma_isBusy(int ch); -extern int dma_isFree(int ch); -extern int dma_getFree(void); - -#endif //__DMA_H__ - diff --git a/sdk-modifications/libsrc/dma/dmacopy.c b/sdk-modifications/libsrc/dma/dmacopy.c index 2c5a2b1..83609d3 100644 --- a/sdk-modifications/libsrc/dma/dmacopy.c +++ b/sdk-modifications/libsrc/dma/dmacopy.c @@ -1,5 +1,5 @@ #include <stdlib.h> -#include "dma.h" +#include "ds2_dma.h" #include "ds2_types.h" #define MAX_DMA_NUM 6 /* max 6 channels */ diff --git a/sdk-modifications/include/dma.h b/sdk-modifications/libsrc/dma/ds2_dma.h index f6ff230..491df0e 100644 --- a/sdk-modifications/include/dma.h +++ b/sdk-modifications/libsrc/dma/ds2_dma.h @@ -1,6 +1,10 @@ #ifndef __DMA_H__ #define __DMA_H__ +#ifdef __cplusplus +extern "C" { +#endif + //register a DMA transfer request //ch: channel id request, there are 6 channles, //irq_handler: the DMA interruption handle @@ -42,5 +46,9 @@ extern int dma_isBusy(int ch); extern int dma_isFree(int ch); extern int dma_getFree(void); +#ifdef __cplusplus +} +#endif + #endif //__DMA_H__ |