rem: static __inline__ s32 __card_enableinterrupt(u32 chn,u32 enable)
add: static __inline__ s32 __card_enableinterrupt(s32 chn,u32 enable)
context: static __inline__ s32 __card_enableinterrupt(u32 chn,u32 enable){	u8 val[2];	u32 err;	s32 ret;#ifdef _CARD_DEBUG	printf("__card_enableinterrupt(%d,%d)\n",chn,enable);#endif	if(chn<EXI_CHANNEL_0 || chn>=EXI_CHANNEL_2) return CARD_ERROR_NOCARD;	if(EXI_Select(chn,EXI_DEVICE_0,EXI_SPEED16MHZ)==0) return CARD_ERROR_NOCARD;		err = 0;	val[0] = 0x81;	if(enable) val[1] = 0x01;	else val[1] = 0x00;	if(EXI_Imm(chn,val,2,EXI_WRITE,NULL)==0) err |= 0x01;	if(EXI_Sync(chn)==0) err |= 0x02;	if(EXI_Deselect(chn)==0) err |= 0x04;		if(err) ret = CARD_ERROR_BUSY;	else ret = CARD_ERROR_READY;		return ret;}