np2/cbus/cs4231io.c - diff

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Diff for /np2/cbus/cs4231io.c between versions 1.3 and 1.9

version 1.3, 2004/01/05 09:31:25	version 1.9, 2005/02/07 14:46:08
Line 1	Line 1
#include "compiler.h"	#include "compiler.h"
#include "memory.h"	#include "cpucore.h"
#include "pccore.h"	#include "pccore.h"
#include "iocore.h"	#include "iocore.h"
#include "cs4231io.h"	#include "cs4231io.h"
Line 7	Line 7
#include "fmboard.h"	#include "fmboard.h"


	static const UINT8 cs4231dma[] = {0xff,0x00,0x01,0x03,0xff,0xff,0xff,0xff};
	static const UINT8 cs4231irq[] = {0xff,0x03,0x06,0x0a,0x0c,0xff,0xff,0xff};


static void IOOUTCALL csctrl_oc24(UINT port, REG8 dat) {	static void IOOUTCALL csctrl_oc24(UINT port, REG8 dat) {

cs4231.portctrl = dat;	cs4231.portctrl = dat;
Line 76 void cs4231io_reset(void) {	Line 80 void cs4231io_reset(void) {

cs4231.enable = 1;	cs4231.enable = 1;
cs4231.port = 0xf40;	cs4231.port = 0xf40;
cs4231.adrs = 0x21;	cs4231.adrs = 0x22;
cs4231.dmach = 0;	cs4231.dmairq = cs4231irq[(cs4231.adrs >> 3) & 7];
cs4231.dmairq = 0x0c;	cs4231.dmach = cs4231dma[cs4231.adrs & 7];
cs4231.step = 22050;	if (cs4231.dmach != 0xff) {
dmac_attach(DMADEV_CS4231, 0);	dmac_attach(DMADEV_CS4231, cs4231.dmach);
	}
	TRACEOUT(("CS4231 - IRQ = %d", cs4231.dmairq));
	TRACEOUT(("CS4231 - DMA channel = %d", cs4231.dmach));
}	}

void cs4231io_bind(void) {	void cs4231io_bind(void) {
Line 98 void IOOUTCALL cs4231io_w8(UINT port, RE	Line 105 void IOOUTCALL cs4231io_w8(UINT port, RE

switch(port & 0x0f) {	switch(port & 0x0f) {
case 0:	case 0:
#if 0
cs4231.adrs = value;	cs4231.adrs = value;
cs4231.dmairq = dmairq[(value >> 3) & 3];	cs4231.dmairq = cs4231irq[(value >> 3) & 7];
cs4231.dmach = dmach[value & 7];	cs4231.dmach = cs4231dma[value & 7];
	dmac_detach(DMADEV_CS4231);
	if (cs4231.dmach != 0xff) {
	dmac_attach(DMADEV_CS4231, cs4231.dmach);
	#if 0
	if (cs4231.sdc_enable) {
	dmac.dmach[cs4231.dmach].ready = 1;
	dmac_check();
	}
#endif	#endif
	}
break;	break;

case 4:	case 4:
Line 116 void IOOUTCALL cs4231io_w8(UINT port, RE	Line 131 void IOOUTCALL cs4231io_w8(UINT port, RE
case 6:	case 6:
cs4231.intflag = 0;	cs4231.intflag = 0;
break;	break;

	case 7:
	cs4231_datasend(value);
	break;
}	}
}	}

Line 132 REG8 IOINPCALL cs4231io_r8(UINT port) {	Line 151 REG8 IOINPCALL cs4231io_r8(UINT port) {
return(cs4231.index & 0x7f);	return(cs4231.index & 0x7f);

case 5:	case 5:
return((((BYTE )(&cs4231.reg)) + (cs4231.index & 0x1f)));	return((((UINT8 )(&cs4231.reg)) + (cs4231.index & 0x1f)));

case 6:	case 6:
return(cs4231.intflag);	return(cs4231.intflag);

RetroPC.NET-CVS <cvs@retropc.net>

Removed from v.1.3
changed lines
	Added in v.1.9