dmaInit.h

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//  ____     ___ |    / _____ _____
// |  __    |    |___/    |     |
// |___| ___|    |    \ __|__   |     gsKit Open Source Project.
// ----------------------------------------------------------------------
// Copyright 2004 - Chris "Neovanglist" Gilbert <Neovanglist@LainOS.org>
// Licenced under Academic Free License version 2.0
// Review gsKit README & LICENSE files for further details.
//
// dmaInit.h - Header for dmaInit.c
//
// Portions taken from ooPo's tutorial at:
// http://www.oopo.net/consoledev/files/ps2-using-the-dmac.txt
//
 
#ifndef __DMAINIT_H__
#define __DMAINIT_H__
 
#include "dmaKit.h"
 
#define D_CTRL_RELE_OFF 0x0
#define D_CTRL_RELE_ON 0x1
 
#define D_CTRL_MFD_OFF 0x0
#define D_CTRL_MFD_RES 0x1
#define D_CTRL_MFD_VIF 0x2
#define D_CTRL_MFD_GIF 0x3
 
#define D_CTRL_STS_UNSPEC 0x0
#define D_CTRL_STS_SIF 0x1
#define D_CTRL_STS_SPR 0x2
#define D_CTRL_STS_IPU 0x3
 
#define D_CTRL_STD_OFF 0x0
#define D_CTRL_STD_VIF 0x1
#define D_CTRL_STD_GIF 0x2
#define D_CTRL_STD_SIF 0x3
 
#define D_CTRL_RCYC_8 0x0
#define D_CTRL_RCYC_16 0x1
#define D_CTRL_RCYC_32 0x2
#define D_CTRL_RCYC_64 0x3
#define D_CTRL_RCYC_128 0x4
#define D_CTRL_RCYC_256 0x5
 
#define DMA_REG_CTRL    (volatile u32 *)0x1000E000
#define DMA_REG_STAT    (volatile u32 *)0x1000E010
#define DMA_REG_PCR (volatile u32 *)0x1000E020
#define DMA_REG_SQWC    (volatile u32 *)0x1000E030
#define DMA_REG_RBSR    (volatile u32 *)0x1000E040
#define DMA_REG_RBOR    (volatile u32 *)0x1000E050
 
#define DMA_SET_CIS(A) *DMA_REG_STAT = (u32)(A)
#define DMA_SET_CIM(A) *DMA_REG_STAT = (u32)((A) << 16)
#define DMA_SET_CPCOND(A) *DMA_REG_PCR = (u32)(A)
 
#define DMA_CHANNEL_VIF0    0x0
#define DMA_CHANNEL_VIF1    0x1
#define DMA_CHANNEL_GIF     0x2
#define DMA_CHANNEL_FROMIPU 0x3
#define DMA_CHANNEL_TOIPU   0x4
#define DMA_CHANNEL_SIF0    0x5
#define DMA_CHANNEL_SIF1    0x6
#define DMA_CHANNEL_SIF2    0x7
#define DMA_CHANNEL_FROMSPR 0x8
#define DMA_CHANNEL_TOSPR   0x9
 
#define DMA_SET_CTRL(A,B,C,D,E,F) \
    (u32)(A & 0x00000001) <<  0 | (u32)(B & 0x00000001) <<  1 | \
    (u32)(C & 0x00000003) <<  2 | (u32)(D & 0x00000003) <<  4 | \
    (u32)(E & 0x00000003) <<  6 | (u32)(F & 0x00000007) <<  8
 
#ifdef __cplusplus
extern "C" {
#endif

int dmaKit_init(u32 RELE, u32 MFD, u32 STS,
                u32 STD, u32 RCYC, u16 fastwaitchannels);

int dmaKit_chan_init(u32 channel);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __DMAINIT_H__ */