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Crystal CS4237, part 1

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This commit is contained in:
RichardG867
2021-05-19 00:46:15 -03:00
parent 756e1dfc83
commit 1ba56e2681
8 changed files with 529 additions and 7 deletions
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20
src/sound/snd_ad1848.c
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@@ -14,6 +14,7 @@
#include <86box/snd_ad1848.h>
#define CS4231 0x80
#define CS4236 0x03
static int ad1848_vols_6bits[64];
static double ad1848_vols_5bits_aux_gain[32];
@@ -59,7 +60,7 @@ void ad1848_write(uint16_t addr, uint8_t val, void *p)
switch (addr & 3)
{
case 0: /*Index*/
if ((ad1848->regs[12] & 0x40) && (ad1848->type == AD1848_TYPE_CS4231))
if ((ad1848->regs[12] & 0x40) && (ad1848->type >= AD1848_TYPE_CS4231))
ad1848->index = val & 0x1f; /* cs4231a extended mode enabled */
else
ad1848->index = val & 0x0f; /* ad1848/cs4248 mode TODO: some variants/clones DO NOT mirror, just ignore the writes? */
@@ -247,15 +248,14 @@ void ad1848_init(ad1848_t *ad1848, int type)
ad1848->regs[8] = 0;
ad1848->regs[9] = 0x08;
ad1848->regs[10] = ad1848->regs[11] = 0;
if ((type == AD1848_TYPE_CS4248) || (type == AD1848_TYPE_CS4231))
if ((type == AD1848_TYPE_CS4248) || (type == AD1848_TYPE_CS4231) || (type == AD1848_TYPE_CS4236))
ad1848->regs[12] = 0x8a;
else
ad1848->regs[12] = 0xa;
ad1848->regs[13] = 0;
ad1848->regs[14] = ad1848->regs[15] = 0;
if (type == AD1848_TYPE_CS4231)
{
if (type == AD1848_TYPE_CS4231) {
ad1848->regs[16] = ad1848->regs[17] = 0;
ad1848->regs[18] = ad1848->regs[19] = 0x88;
ad1848->regs[22] = 0x80;
@@ -263,7 +263,17 @@ void ad1848_init(ad1848_t *ad1848, int type)
ad1848->regs[25] = CS4231;
ad1848->regs[26] = 0x80;
ad1848->regs[29] = 0x80;
}
} else if (type == AD1848_TYPE_CS4236) {
ad1848->regs[16] = ad1848->regs[17] = 0;
ad1848->regs[18] = ad1848->regs[19] = 0;
ad1848->regs[20] = ad1848->regs[21] = 0;
ad1848->regs[22] = ad1848->regs[23] = 0;
ad1848->regs[24] = 0;
ad1848->regs[25] = CS4236;
ad1848->regs[26] = 0xa0;
ad1848->regs[27] = ad1848->regs[29] = 0;
ad1848->regs[30] = ad1848->regs[31] = 0;
}
ad1848->out_l = 0;
ad1848->out_r = 0;