static u32 __SRAM_Read(void *buffer)
{
u32 command = 0x20000100;
EXI_Select(0, 1, 3);
EXI_Imm(0, &command, 4, EXI_WRITE, 0);
EXI_Sync(0);
EXI_ImmEx(0, buffer, 64, EXI_READ);
EXI_Sync(0);
EXI_Deselect(0);
return 0;
}
static u32 __SRAM_Write(void *buffer, u32 loc, u32 length)
{
u32 command = 0xA0000100 + (loc << 6);
EXI_Select(0, 1, 3);
EXI_Imm(0, &command, 4, EXI_WRITE, 0);
EXI_Sync(0);
EXI_ImmEx(0, buffer, 64, EXI_WRITE);
EXI_Sync(0);
EXI_Deselect(0);
return 0;
}
static __inline__ int __send_command(s32 chn,u16 *cmd)
{
s32 ret = 0;
if(!EXI_Select(chn,EXI_DEVICE_0,EXI_SPEED32MHZ)) ret |= 0x01;
if(!EXI_Imm(chn,cmd,sizeof(u16),EXI_READWRITE,NULL)) ret |= 0x02;
if(!EXI_Sync(chn)) ret |= 0x04;
if(!EXI_Deselect(chn)) ret |= 0x08;
if(ret) return 0;
return 1;
}
static __inline__ int __send_command1(s32 chn,u16 *cmd)
{
s32 ret;
ret = 0;
if(EXI_Lock(chn,EXI_DEVICE_0,NULL)) {
if(!EXI_Select(chn,EXI_DEVICE_0,EXI_SPEED32MHZ)) ret |= 0x01;
if(!EXI_Imm(chn,cmd,sizeof(u16),EXI_READWRITE,NULL)) ret |= 0x02;
if(!EXI_Sync(chn)) ret |= 0x04;
if(!EXI_Deselect(chn)) ret |= 0x08;
if(!EXI_Unlock(chn)) ret |= 0x10;
if(ret) ret = 0;
else ret = 1;
}
return ret;
}
s32 EXI_ImmEx(int chan, void *buffer, int length, int mode)
{
u8 *v = (u8*)buffer;
int blength;
while(length)
{
blength = 4;
if(blength >= length)
blength = length;
EXI_Imm(chan, v, blength, mode, 0);
EXI_Sync(chan);
length -= blength;
v += blength;
}
if(length == 0)
return 0;
return 1;
}
