lib/ultralib/src/flash/flashwritebuffer.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

#include "ultra64.h"
#include "PR/os_internal_flash.h"

s32 osFlashWriteBuffer(OSIoMesg* mb, s32 priority, void* dramAddr, OSMesgQueue* mq) {
    s32 ret;

    // select page program mode
    osEPiWriteIo(&__osFlashHandler, __osFlashHandler.baseAddress | FLASH_CMD_REG, FLASH_CMD_PAGE_PROGRAM);

    // DMA 128-byte page
    mb->hdr.pri = priority;
    mb->hdr.retQueue = mq;
    mb->dramAddr = dramAddr;
    mb->devAddr = 0;
    mb->size = FLASH_BLOCK_SIZE;

    ret = osEPiStartDma(&__osFlashHandler, mb, OS_WRITE);

    return ret;
}