Subversion Repositories kiss-board

#ifndef __DMA_H

#define __DMA_H

#include "support.h"

//

// TSR1000x-board

//

#define DMA_IRQ                 3

#define DMA_BASE                0x9f000000

//

// parameter

//

#define DMA_CH_SIZE             1

#define DMA_BUF_SIZE            4 //8192

//

// dma io

//

#define DMA_BASE_CSR            0x00000000

#define DMA_BASE_INT_MSK_A      0x00000004

#define DMA_BASE_INT_MSK_B      0x00000008

#define DMA_BASE_INT_SRC_A      0x0000000c

#define DMA_BASE_INT_SRC_B      0x00000010

#define DMA_CH_CSR              0x00000000

#define DMA_CH_SZ               0x00000004

#define DMA_CH_A0               0x00000008

#define DMA_CH_AM0              0x0000000c

#define DMA_CH_A1               0x00000010

#define DMA_CH_AM1              0x00000014

#define DMA_CH_DESC             0x00000018

#define DMA_CH_SWPTR            0x0000001c

struct dma_buffer {

        void *src;

        void *dst;

        unsigned long int size;

} typedef DMA_BUFFER;

struct dma_channel {

        unsigned long int wp;

        unsigned long int rp;

        unsigned long int busy;

        unsigned long int buf_size;

        unsigned long int info_add_a0;

        unsigned long int info_add_a1;

        unsigned long int info_add_sz;

        unsigned long int info_add_csr;

        DMA_BUFFER *buf;

} typedef DMA_CHANNEL;

struct dma {

        unsigned long int base;

        unsigned long int irq;

        unsigned long int ch_size;

        unsigned long int info_add_intsrca;

        DMA_CHANNEL *ch;

} typedef DMA;

// private

void                            dma_handler(void *argv)                                                                 __attribute__ ((section(".icm")));

// public

void                            dma_init(DMA *dma,unsigned long int base,unsigned long int irq)                         __attribute__ ((section(".text")));

void                            dma_add(DMA *dma,unsigned long int ch,void *src,void *dst,unsigned long int size)       __attribute__ ((section(".text")));

unsigned long int               dma_add_full(DMA *dma,unsigned long int ch)                                             __attribute__ ((section(".text")));

#endif