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ALi M5123 FDC implementation.

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This commit is contained in:
OBattler
2022-07-23 03:19:51 +02:00
parent 5dc97b000a
commit 1ee0eedccb
1 changed files with 26 additions and 0 deletions
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26
src/floppy/fdc.c
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@@ -930,6 +930,12 @@ fdc_write(uint16_t addr, uint8_t val, void *priv)
fdc->pos = 0;
fdc->mfm = (fdc->command&0x40)?1:0;
break;
case 0x17: /*Powerdown mode*/
if (!(fdc->flags & FDC_FLAG_ALI)) {
fdc_bad_command(fdc);
break;
}
/*FALLTHROUGH*/
case 0x07: /*Recalibrate*/
fdc->pnum=0;
fdc->ptot=1;
@@ -1796,6 +1802,12 @@ fdc_callback(void *priv)
fdc->paramstogo = 1;
fdc->interrupt = 0;
return;
case 0x17: /*Powerdown mode*/
fdc->stat = (fdc->stat & 0xf) | 0xd0;
fdc->res[10] = fdc->params[0];
fdc->paramstogo = 1;
fdc->interrupt = 0;
return;
case 0x13: /*Configure*/
fdc->config = fdc->params[1];
fdc->pretrk = fdc->params[2];
@@ -2545,6 +2557,20 @@ const device_t fdc_at_smc_device = {
.config = NULL
};
const device_t fdc_at_ali_device = {
.name = "PC/AT Floppy Drive Controller (ALi M512x/M1543C)",
.internal_name = "fdc_at_ali",
.flags = 0,
.local = FDC_FLAG_AT | FDC_FLAG_SUPERIO | FDC_FLAG_ALI,
.init = fdc_init,
.close = fdc_close,
.reset = fdc_reset,
{ .available = NULL },
.speed_changed = NULL,
.force_redraw = NULL,
.config = NULL
};
const device_t fdc_at_winbond_device = {
.name = "PC/AT Floppy Drive Controller (Winbond W83x77F)",
.internal_name = "fdc_at_winbond",