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Preliminary GUS MAX support

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This commit is contained in:
Altheos
2020-06-06 21:35:03 +02:00
parent 83cf4fd576
commit 871c01f153
4 changed files with 128 additions and 15 deletions
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39
src/sound/snd_ad1848.c
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@@ -1,6 +1,5 @@
/*PCem v0.8 by Tom Walker
AD1848 CODEC emulation (Windows Sound System compatible)*/
/*
AD1848 / CS4248 / CS4231 CODEC emulation (Windows Sound System compatible)*/
#include <stdio.h>
#include <stdint.h>
@@ -14,6 +13,7 @@
#include <86box/sound.h>
#include <86box/snd_ad1848.h>
#define CS4231 0x80
static int ad1848_vols_6bits[64];
static uint32_t ad1848_vols_5bits_aux_gain[32];
@@ -40,7 +40,11 @@ uint8_t ad1848_read(uint16_t addr, void *p)
break;
case 1:
temp = ad1848->regs[ad1848->index];
break;
if (ad1848->index == 0x0b) {
temp ^= 0x20;
ad1848->regs[ad1848->index] = temp;
}
break;
case 2:
temp = ad1848->status;
break;
@@ -97,6 +101,10 @@ void ad1848_write(uint16_t addr, uint8_t val, void *p)
}
break;
case 11:
break;
case 12:
if (ad1848->type != AD1848_TYPE_DEFAULT)
ad1848->regs[12] = ((ad1848->regs[12] & 0x0f) + (val & 0xf0)) | 0x80;
@@ -105,6 +113,14 @@ void ad1848_write(uint16_t addr, uint8_t val, void *p)
case 14:
ad1848->count = ad1848->regs[15] | (val << 8);
break;
case 24:
if (! (val & 0x70))
ad1848->status &= 0xfe;
break;
case 25:
break;
}
ad1848->regs[ad1848->index] = val;
@@ -197,7 +213,7 @@ static void ad1848_poll(void *p)
if (!(ad1848->status & 0x01))
{
ad1848->status |= 0x01;
if (ad1848->regs[0xa] & 2)
if (ad1848->regs[10] & 2)
picint(1 << ad1848->irq);
}
}
@@ -221,9 +237,9 @@ void ad1848_init(ad1848_t *ad1848, int type)
ad1848->mce = 0x40;
ad1848->regs[0] = ad1848->regs[1] = 0;
ad1848->regs[2] = ad1848->regs[3] = 0x80; /* AZT2316A Line-in */
ad1848->regs[2] = ad1848->regs[3] = 0x80; /* Line-in */
ad1848->regs[4] = ad1848->regs[5] = 0x80;
ad1848->regs[6] = ad1848->regs[7] = 0x80; /* AZT2316A Master? */
ad1848->regs[6] = ad1848->regs[7] = 0x80; /* Left/right Output */
ad1848->regs[8] = 0;
ad1848->regs[9] = 0x08;
ad1848->regs[10] = ad1848->regs[11] = 0;
@@ -236,8 +252,13 @@ void ad1848_init(ad1848_t *ad1848, int type)
if (type == AD1848_TYPE_CS4231)
{
ad1848->regs[0x12] = ad1848->regs[0x13] = 0x80; // AZT2316A CD
ad1848->regs[0x1A] = 0x80; // AZT2316A Mic
ad1848->regs[16] = ad1848->regs[17] = 0;
ad1848->regs[18] = ad1848->regs[19] = 0x88;
ad1848->regs[22] = 0x80;
ad1848->regs[24] = 0;
ad1848->regs[25] = CS4231;
ad1848->regs[26] = 0x80;
ad1848->regs[29] = 0x80;
}
ad1848->out_l = 0;