dma.h

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/*---------------------------------------------------------------------------------
 
    Copyright (C) 2012-2017
        Alekmaul
 
 
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any
    damages arising from the use of this software.
 
    Permission is granted to anyone to use this software for any
    purpose, including commercial applications, and to alter it and
    redistribute it freely, subject to the following restrictions:
 
    1.  The origin of this software must not be misrepresented; you
        must not claim that you wrote the original software. If you use
        this software in a product, an acknowledgment in the product
        documentation would be appreciated but is not required.
 
    2.  Altered source versions must be plainly marked as such, and
        must not be misrepresented as being the original software.
 
    3.  This notice may not be removed or altered from any source
        distribution.
 
---------------------------------------------------------------------------------*/
#ifndef SNES_DMA_INCLUDE
#define SNES_DMA_INCLUDE
 
#include <snes/snestypes.h>
 
#include <snes/background.h>
#include <snes/sprite.h>
#include <snes/video.h>
 
#define HDMA_CHANNEL0           (1 << 0)
#define HDMA_CHANNEL1           (1 << 1)
#define HDMA_CHANNEL2           (1 << 2)
#define HDMA_CHANNEL3           (1 << 3)
#define HDMA_CHANNEL4           (1 << 4)
#define HDMA_CHANNEL5           (1 << 5)
#define HDMA_CHANNEL6           (1 << 6)
#define HDMA_CHANNEL7           (1 << 7)
#define HDMA_CHANNELALL         (HDMA_CHANNEL0 | HDMA_CHANNEL1 | HDMA_CHANNEL2 | HDMA_CHANNEL3 | HDMA_CHANNEL4 | HDMA_CHANNEL5 | HDMA_CHANNEL6 | HDMA_CHANNEL7)
 
#define MSWIN_BG1               (1 << 0) 
#define MSWIN_BG2               (1 << 1) 
#define MSWIN_BG3               (1 << 2) 
#define MSWIN_BG4               (1 << 3) 
#define MSWIN1_BG1MSKOUT        (1 << 0) 
#define MSWIN1_BG1MSKENABLE     (2 << 0) 
#define MSWIN2_BG1MSKOUT        (1 << 2) 
#define MSWIN2_BG1MSKENABLE     (2 << 2) 
#define MSWIN1_BG2MSKOUT        (1 << 4) 
#define MSWIN1_BG2MSKENABLE     (2 << 4) 
#define MSWIN2_BG2MSKOUT        (1 << 4) 
#define MSWIN2_BG2MSKENABLE     (2 << 4) 
#define MSWIN1_BG3MSKOUT        (1 << 0) 
#define MSWIN1_BG3MSKENABLE     (2 << 0) 
#define MSWIN2_BG3MSKOUT        (1 << 2) 
#define MSWIN2_BG3MSKENABLE     (2 << 2) 
#define MSWIN1_BG4MSKOUT        (1 << 4) 
#define MSWIN1_BG4MSKENABLE     (2 << 4) 
#define MSWIN2_BG4MSKOUT        (1 << 4) 
#define MSWIN2_BG4MSKENABLE     (2 << 4) 
#define DMA_ENABLE 1
 
typedef struct dmaMemory
{
    union
    {
        struct
        {
            unsigned short addr;
            unsigned char bank;
            unsigned char __pad;
        } c;
        void *p;
    } mem;
} dmaMemory;
 
#define REG_MDMAEN (*(vuint8 *)0x420B)
 
#define REG_HDMAEN (*(vuint8 *)0x420C)
 
#define REG_DMAP0 (*(vuint8 *)0x4300)
#define REG_DMAP1 (*(vuint8 *)0x4310)
#define REG_DMAP2 (*(vuint8 *)0x4320)
#define REG_DMAP3 (*(vuint8 *)0x4330)
#define REG_DMAP4 (*(vuint8 *)0x4340)
#define REG_DMAP5 (*(vuint8 *)0x4350)
#define REG_DMAP6 (*(vuint8 *)0x4360)
#define REG_DMAP7 (*(vuint8 *)0x4370)
 
#define REG_BBAD0 (*(vuint8 *)0x4301)
#define REG_BBAD1 (*(vuint8 *)0x4311)
#define REG_BBAD2 (*(vuint8 *)0x4321)
#define REG_BBAD3 (*(vuint8 *)0x4331)
#define REG_BBAD4 (*(vuint8 *)0x4341)
#define REG_BBAD5 (*(vuint8 *)0x4351)
#define REG_BBAD6 (*(vuint8 *)0x4361)
#define REG_BBAD7 (*(vuint8 *)0x4371)
 
#define REG_A1T0LH (*(vuint16 *)0x4302)
#define REG_A1T1LH (*(vuint16 *)0x4312)
#define REG_A1T2LH (*(vuint16 *)0x4322)
#define REG_A1T3LH (*(vuint16 *)0x4332)
#define REG_A1T4LH (*(vuint16 *)0x4342)
#define REG_A1T5LH (*(vuint16 *)0x4352)
#define REG_A1T6LH (*(vuint16 *)0x4362)
#define REG_A1T7LH (*(vuint16 *)0x4372)
 
#define REG_A1B0 (*(vuint8 *)0x4304)
#define REG_A1B1 (*(vuint8 *)0x4314)
#define REG_A1B2 (*(vuint8 *)0x4324)
#define REG_A1B3 (*(vuint8 *)0x4334)
#define REG_A1B4 (*(vuint8 *)0x4344)
#define REG_A1B5 (*(vuint8 *)0x4354)
#define REG_A1B6 (*(vuint8 *)0x4364)
#define REG_A1B7 (*(vuint8 *)0x4374)
 
#define REG_DAS0LH (*(vuint16 *)0x4305)
#define REG_DAS1LH (*(vuint16 *)0x4315)
#define REG_DAS2LH (*(vuint16 *)0x4325)
#define REG_DAS3LH (*(vuint16 *)0x4335)
#define REG_DAS4LH (*(vuint16 *)0x4345)
#define REG_DAS5LH (*(vuint16 *)0x4355)
#define REG_DAS6LH (*(vuint16 *)0x4365)
#define REG_DAS7LH (*(vuint16 *)0x4375)
 
extern u8 HDMATable16[224 + 1]; 
void dmaCopyCGram(u8 *source, u16 address, u16 size);
 
void dmaCopyVram(u8 *source, u16 address, u16 size);
 
void dmaCopySpr32Vram(u8 *source, u16 address);
 
void dmaCopySpr16Vram(u8 *source, u16 address);
 
void dmaFillVram(u8 *source, u16 address, u16 size);
 
void dmaClearVram(void);
 
void dmaCopyOAram(u8 *source, u16 address, u16 size);
 
void dmaCopyVram7(u8 *source, u16 address, u16 size, u8 vrammodeinc, u16 dmacontrol);
 
void setModeHdmaGradient(u8 maxLevels);
 
void setModeHdmaShadeUpDown(void);
 
void setModeHdmaShading(unsigned char mode);
 
void setParallaxScrolling(u8 bgrnd);
 
void setModeHdmaReset(u8 channels);
 
void setModeHdmaWindowReset(u8 channels);
 
void setModeHdmaColor(u8* hdmatable);
 
void setModeHdmaWaves(u8 bgrnd);
 
void setModeHdmaWavesMove(void);
 
void setModeHdmaWindow(u8 bgrnd, u8 bgrndmask,u8* hdmatableL,u8* hdmatableR);
 
#endif // SNES_DMA_INCLUDE