Clean up formatting on the AD1848 and WSS code
This commit is contained in:
RichardG867
@@ -1,45 +1,65 @@
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/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Definitions for AD1848 / CS4248 / CS4231 (Windows Sound System) codec emulation.
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*
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*
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*
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* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
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* TheCollector1995, <mariogplayer@gmail.com>
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*
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* Copyright 2008-2020 Sarah Walker.
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* Copyright 2018-2020 TheCollector1995.
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*/
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#define AD1848_TYPE_DEFAULT 0
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#define AD1848_TYPE_DEFAULT 0
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#define AD1848_TYPE_CS4248 1
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#define AD1848_TYPE_CS4248 1
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#define AD1848_TYPE_CS4231 2
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#define AD1848_TYPE_CS4231 2
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#define AD1848_TYPE_CS4236 3
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#define AD1848_TYPE_CS4236 3
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typedef struct ad1848_t
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{
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int index;
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uint8_t regs[32]; /* 16 original + 16 CS4231A extensions */
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uint8_t status;
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int trd;
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int mce;
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int count;
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int16_t out_l, out_r;
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double cd_vol_l, cd_vol_r;
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typedef struct {
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int index;
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uint8_t regs[32]; /* 16 original + 16 CS4231A extensions */
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uint8_t status;
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int trd;
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int mce;
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int count;
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int16_t out_l, out_r;
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int enable;
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double cd_vol_l, cd_vol_r;
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int irq, dma;
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int enable;
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int freq;
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pc_timer_t timer_count;
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uint64_t timer_latch;
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int16_t buffer[SOUNDBUFLEN * 2];
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int irq, dma;
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int pos;
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int freq;
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int type;
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pc_timer_t timer_count;
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uint64_t timer_latch;
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int16_t buffer[SOUNDBUFLEN * 2];
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int pos;
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int type;
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} ad1848_t;
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} ad1848_t;
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void ad1848_setirq(ad1848_t *ad1848, int irq);
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void ad1848_setdma(ad1848_t *ad1848, int dma);
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uint8_t ad1848_read(uint16_t addr, void *p);
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extern void ad1848_setirq(ad1848_t *ad1848, int irq);
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void ad1848_write(uint16_t addr, uint8_t val, void *p);
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extern void ad1848_setdma(ad1848_t *ad1848, int dma);
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void ad1848_update(ad1848_t *ad1848);
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extern uint8_t ad1848_read(uint16_t addr, void *p);
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void ad1848_speed_changed(ad1848_t *ad1848);
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extern void ad1848_write(uint16_t addr, uint8_t val, void *p);
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void ad1848_init(ad1848_t *ad1848, int type);
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extern void ad1848_update(ad1848_t *ad1848);
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extern void ad1848_speed_changed(ad1848_t *ad1848);
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extern void ad1848_init(ad1848_t *ad1848, int type);
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@@ -1,6 +1,21 @@
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/*
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/*
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AD1848 / CS4248 / CS4231 CODEC emulation (Windows Sound System compatible)*/
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
|
||||||
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* PC systems and compatibles from 1981 through fairly recent
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||||||
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* system designs based on the PCI bus.
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*
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||||||
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* This file is part of the 86Box distribution.
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*
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* AD1848 / CS4248 / CS4231 (Windows Sound System) codec emulation.
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*
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*
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*
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* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
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* TheCollector1995, <mariogplayer@gmail.com>
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*
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* Copyright 2008-2020 Sarah Walker.
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* Copyright 2018-2020 TheCollector1995.
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*/
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#include <stdio.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdint.h>
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#include <string.h>
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#include <string.h>
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@@ -13,302 +28,317 @@
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#include <86box/sound.h>
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#include <86box/sound.h>
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#include <86box/snd_ad1848.h>
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#include <86box/snd_ad1848.h>
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#define CS4231 0x80
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#define CS4231 0x80
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#define CS4236 0x03
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#define CS4236 0x03
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static int ad1848_vols_6bits[64];
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static double ad1848_vols_5bits_aux_gain[32];
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static int ad1848_vols_6bits[64];
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static double ad1848_vols_5bits_aux_gain[32];
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void ad1848_setirq(ad1848_t *ad1848, int irq)
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void
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ad1848_setirq(ad1848_t *ad1848, int irq)
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{
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{
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ad1848->irq = irq;
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ad1848->irq = irq;
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}
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}
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void ad1848_setdma(ad1848_t *ad1848, int dma)
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void
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ad1848_setdma(ad1848_t *ad1848, int dma)
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{
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{
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ad1848->dma = dma;
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ad1848->dma = dma;
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}
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}
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uint8_t ad1848_read(uint16_t addr, void *p)
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uint8_t
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ad1848_read(uint16_t addr, void *priv)
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{
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{
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ad1848_t *ad1848 = (ad1848_t *)p;
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ad1848_t *ad1848 = (ad1848_t *) priv;
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uint8_t temp = 0xff;
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uint8_t ret = 0xff;
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switch (addr & 3)
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{
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switch (addr & 3) {
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case 0: /*Index*/
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case 0: /*Index*/
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temp = ad1848->index | ad1848->trd | ad1848->mce;
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ret = ad1848->index | ad1848->trd | ad1848->mce;
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break;
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break;
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case 1:
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temp = ad1848->regs[ad1848->index];
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case 1:
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if (ad1848->index == 0x0b) {
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ret = ad1848->regs[ad1848->index];
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temp ^= 0x20;
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if (ad1848->index == 0x0b) {
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ad1848->regs[ad1848->index] = temp;
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ret ^= 0x20;
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ad1848->regs[ad1848->index] = ret;
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}
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}
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break;
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break;
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case 2:
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temp = ad1848->status;
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case 2:
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break;
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ret = ad1848->status;
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}
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break;
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return temp;
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}
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return ret;
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}
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}
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void ad1848_write(uint16_t addr, uint8_t val, void *p)
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void
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ad1848_write(uint16_t addr, uint8_t val, void *priv)
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{
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{
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ad1848_t *ad1848 = (ad1848_t *)p;
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ad1848_t *ad1848 = (ad1848_t *) priv;
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double freq;
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double freq;
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switch (addr & 3)
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switch (addr & 3) {
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{
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case 0: /* Index */
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case 0: /*Index*/
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if ((ad1848->regs[12] & 0x40) && (ad1848->type >= AD1848_TYPE_CS4231))
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if ((ad1848->regs[12] & 0x40) && (ad1848->type >= AD1848_TYPE_CS4231))
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ad1848->index = val & 0x1f; /* cs4231a extended mode enabled */
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ad1848->index = val & 0x1f; /* cs4231a extended mode enabled */
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else
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else
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ad1848->index = val & 0x0f; /* ad1848/cs4248 mode TODO: some variants/clones DO NOT mirror, just ignore the writes? */
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ad1848->index = val & 0x0f; /* ad1848/cs4248 mode TODO: some variants/clones DO NOT mirror, just ignore the writes? */
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ad1848->trd = val & 0x20;
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ad1848->trd = val & 0x20;
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ad1848->mce = val & 0x40;
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ad1848->mce = val & 0x40;
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break;
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break;
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case 1:
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switch (ad1848->index)
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{
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case 8:
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freq = (val & 1) ? 16934400LL : 24576000LL;
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switch ((val >> 1) & 7)
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{
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case 0: freq /= 3072; break;
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case 1: freq /= 1536; break;
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case 2: freq /= 896; break;
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case 3: freq /= 768; break;
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case 4: freq /= 448; break;
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case 5: freq /= 384; break;
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case 6: freq /= 512; break;
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case 7: freq /= 2560; break;
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}
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ad1848->freq = freq;
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ad1848->timer_latch = (uint64_t)((double)TIMER_USEC * (1000000.0 / (double)ad1848->freq));
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break;
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case 9:
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if (!ad1848->enable && (val & 0x41) == 0x01) {
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if (ad1848->timer_latch)
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timer_set_delay_u64(&ad1848->timer_count, ad1848->timer_latch);
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else
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timer_set_delay_u64(&ad1848->timer_count, TIMER_USEC);
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}
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ad1848->enable = ((val & 0x41) == 0x01);
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if (!ad1848->enable) {
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timer_disable(&ad1848->timer_count);
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ad1848->out_l = ad1848->out_r = 0;
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}
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break;
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case 11:
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break;
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case 12:
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if (ad1848->type != AD1848_TYPE_DEFAULT)
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ad1848->regs[12] = ((ad1848->regs[12] & 0x0f) + (val & 0xf0)) | 0x80;
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return;
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case 14:
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ad1848->count = ad1848->regs[15] | (val << 8);
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break;
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case 24:
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case 1:
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if (! (val & 0x70))
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switch (ad1848->index) {
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ad1848->status &= 0xfe;
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case 8:
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break;
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freq = (val & 1) ? 16934400LL : 24576000LL;
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switch ((val >> 1) & 7) {
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case 25:
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case 0: freq /= 3072; break;
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case 1: freq /= 1536; break;
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case 2: freq /= 896; break;
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case 3: freq /= 768; break;
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case 4: freq /= 448; break;
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case 5: freq /= 384; break;
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case 6: freq /= 512; break;
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case 7: freq /= 2560; break;
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}
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ad1848->freq = freq;
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ad1848->timer_latch = (uint64_t)((double)TIMER_USEC * (1000000.0 / (double)ad1848->freq));
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break;
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case 9:
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if (!ad1848->enable && (val & 0x41) == 0x01) {
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if (ad1848->timer_latch)
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timer_set_delay_u64(&ad1848->timer_count, ad1848->timer_latch);
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else
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timer_set_delay_u64(&ad1848->timer_count, TIMER_USEC);
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}
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ad1848->enable = ((val & 0x41) == 0x01);
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if (!ad1848->enable) {
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timer_disable(&ad1848->timer_count);
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ad1848->out_l = ad1848->out_r = 0;
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}
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break;
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break;
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}
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ad1848->regs[ad1848->index] = val;
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if (ad1848->type == AD1848_TYPE_CS4231) { /* TODO: configure CD volume for CS4248/AD1848 too */
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case 11:
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if (ad1848->regs[0x12] & 0x80)
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break;
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ad1848->cd_vol_l = 0;
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else
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case 12:
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ad1848->cd_vol_l = ad1848_vols_5bits_aux_gain[ad1848->regs[0x12] & 0x1f];
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if (ad1848->type != AD1848_TYPE_DEFAULT)
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if (ad1848->regs[0x13] & 0x80)
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ad1848->regs[12] = ((ad1848->regs[12] & 0x0f) + (val & 0xf0)) | 0x80;
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ad1848->cd_vol_r = 0;
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return;
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else
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ad1848->cd_vol_r = ad1848_vols_5bits_aux_gain[ad1848->regs[0x13] & 0x1f];
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case 14:
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}
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ad1848->count = ad1848->regs[15] | (val << 8);
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break;
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break;
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case 2:
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ad1848->status &= 0xfe;
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case 24:
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break;
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if (!(val & 0x70))
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}
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ad1848->status &= 0xfe;
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break;
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case 25:
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break;
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}
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ad1848->regs[ad1848->index] = val;
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if (ad1848->type == AD1848_TYPE_CS4231) { /* TODO: configure CD volume for CS4248/AD1848 too */
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if (ad1848->regs[0x12] & 0x80)
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ad1848->cd_vol_l = 0;
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else
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ad1848->cd_vol_l = ad1848_vols_5bits_aux_gain[ad1848->regs[0x12] & 0x1f];
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if (ad1848->regs[0x13] & 0x80)
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ad1848->cd_vol_r = 0;
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else
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ad1848->cd_vol_r = ad1848_vols_5bits_aux_gain[ad1848->regs[0x13] & 0x1f];
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}
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break;
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case 2:
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ad1848->status &= 0xfe;
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break;
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}
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}
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}
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void ad1848_speed_changed(ad1848_t *ad1848)
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void
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ad1848_speed_changed(ad1848_t *ad1848)
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{
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{
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ad1848->timer_latch = (uint64_t)((double)TIMER_USEC * (1000000.0 / (double)ad1848->freq));
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ad1848->timer_latch = (uint64_t) ((double) TIMER_USEC * (1000000.0 / (double) ad1848->freq));
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}
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}
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void ad1848_update(ad1848_t *ad1848)
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|
void
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ad1848_update(ad1848_t *ad1848)
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{
|
{
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for (; ad1848->pos < sound_pos_global; ad1848->pos++)
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for (; ad1848->pos < sound_pos_global; ad1848->pos++) {
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{
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ad1848->buffer[ad1848->pos*2] = ad1848->out_l;
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ad1848->buffer[ad1848->pos*2] = ad1848->out_l;
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ad1848->buffer[ad1848->pos*2 + 1] = ad1848->out_r;
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ad1848->buffer[ad1848->pos*2 + 1] = ad1848->out_r;
|
}
|
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}
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}
|
}
|
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|
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static void ad1848_poll(void *p)
|
|
||||||
|
static void
|
||||||
|
ad1848_poll(void *priv)
|
||||||
{
|
{
|
||||||
ad1848_t *ad1848 = (ad1848_t *)p;
|
ad1848_t *ad1848 = (ad1848_t *) priv;
|
||||||
|
|
||||||
if (ad1848->timer_latch)
|
|
||||||
timer_advance_u64(&ad1848->timer_count, ad1848->timer_latch);
|
|
||||||
else
|
|
||||||
timer_advance_u64(&ad1848->timer_count, TIMER_USEC * 1000);
|
|
||||||
|
|
||||||
ad1848_update(ad1848);
|
if (ad1848->timer_latch)
|
||||||
|
timer_advance_u64(&ad1848->timer_count, ad1848->timer_latch);
|
||||||
if (ad1848->enable)
|
else
|
||||||
{
|
timer_advance_u64(&ad1848->timer_count, TIMER_USEC * 1000);
|
||||||
int32_t temp;
|
|
||||||
|
|
||||||
switch (ad1848->regs[8] & 0x70)
|
|
||||||
{
|
|
||||||
case 0x00: /*Mono, 8-bit PCM*/
|
|
||||||
ad1848->out_l = ad1848->out_r = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
|
||||||
break;
|
|
||||||
case 0x10: /*Stereo, 8-bit PCM*/
|
|
||||||
ad1848->out_l = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
|
||||||
ad1848->out_r = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 0x40: /*Mono, 16-bit PCM*/
|
|
||||||
temp = dma_channel_read(ad1848->dma);
|
|
||||||
ad1848->out_l = ad1848->out_r = (dma_channel_read(ad1848->dma) << 8) | temp;
|
|
||||||
break;
|
|
||||||
case 0x50: /*Stereo, 16-bit PCM*/
|
|
||||||
temp = dma_channel_read(ad1848->dma);
|
|
||||||
ad1848->out_l = (dma_channel_read(ad1848->dma) << 8) | temp;
|
|
||||||
temp = dma_channel_read(ad1848->dma);
|
|
||||||
ad1848->out_r = (dma_channel_read(ad1848->dma) << 8) | temp;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (ad1848->regs[6] & 0x80)
|
ad1848_update(ad1848);
|
||||||
ad1848->out_l = 0;
|
|
||||||
else
|
|
||||||
ad1848->out_l = (ad1848->out_l * ad1848_vols_6bits[ad1848->regs[6] & 0x3f]) >> 16;
|
|
||||||
|
|
||||||
if (ad1848->regs[7] & 0x80)
|
if (ad1848->enable) {
|
||||||
ad1848->out_r = 0;
|
int32_t temp;
|
||||||
else
|
|
||||||
ad1848->out_r = (ad1848->out_r * ad1848_vols_6bits[ad1848->regs[7] & 0x3f]) >> 16;
|
|
||||||
|
|
||||||
if (ad1848->count < 0)
|
|
||||||
{
|
|
||||||
ad1848->count = ad1848->regs[15] | (ad1848->regs[14] << 8);
|
|
||||||
if (!(ad1848->status & 0x01))
|
|
||||||
{
|
|
||||||
ad1848->status |= 0x01;
|
|
||||||
if (ad1848->regs[10] & 2)
|
|
||||||
picint(1 << ad1848->irq);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
ad1848->count--;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
ad1848->out_l = ad1848->out_r = 0;
|
|
||||||
ad1848->cd_vol_l = ad1848->cd_vol_r = 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void ad1848_filter_cd_audio(int channel, double *buffer, void *p)
|
|
||||||
{
|
|
||||||
ad1848_t *ad1848 = (ad1848_t *)p;
|
|
||||||
double c;
|
|
||||||
double volume = channel ? ad1848->cd_vol_r : ad1848->cd_vol_l;
|
|
||||||
|
|
||||||
c = ((*buffer) * volume) / 65536.0;
|
|
||||||
*buffer = c;
|
|
||||||
}
|
|
||||||
|
|
||||||
void ad1848_init(ad1848_t *ad1848, int type)
|
|
||||||
{
|
|
||||||
int c;
|
|
||||||
double attenuation;
|
|
||||||
|
|
||||||
ad1848->status = 0xcc;
|
|
||||||
ad1848->index = ad1848->trd = 0;
|
|
||||||
ad1848->mce = 0x40;
|
|
||||||
|
|
||||||
ad1848->regs[0] = ad1848->regs[1] = 0;
|
|
||||||
ad1848->regs[2] = ad1848->regs[3] = 0x80; /* Line-in */
|
|
||||||
ad1848->regs[4] = ad1848->regs[5] = 0x80;
|
|
||||||
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;
|
|
||||||
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) {
|
|
||||||
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;
|
|
||||||
} 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;
|
switch (ad1848->regs[8] & 0x70) {
|
||||||
ad1848->out_r = 0;
|
case 0x00: /*Mono, 8-bit PCM*/
|
||||||
|
ad1848->out_l = ad1848->out_r = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
||||||
for (c = 0; c < 64; c++) {
|
break;
|
||||||
attenuation = 0.0;
|
case 0x10: /*Stereo, 8-bit PCM*/
|
||||||
if (c & 0x01) attenuation -= 1.5;
|
ad1848->out_l = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
||||||
if (c & 0x02) attenuation -= 3.0;
|
ad1848->out_r = (dma_channel_read(ad1848->dma) ^ 0x80) * 256;
|
||||||
if (c & 0x04) attenuation -= 6.0;
|
break;
|
||||||
if (c & 0x08) attenuation -= 12.0;
|
|
||||||
if (c & 0x10) attenuation -= 24.0;
|
|
||||||
if (c & 0x20) attenuation -= 48.0;
|
|
||||||
|
|
||||||
attenuation = pow(10, attenuation / 10);
|
|
||||||
|
|
||||||
ad1848_vols_6bits[c] = (int)(attenuation * 65536);
|
|
||||||
}
|
|
||||||
|
|
||||||
for (c = 0; c < 32; c++) {
|
|
||||||
attenuation = 12.0;
|
|
||||||
if (c & 0x01) attenuation -= 1.5;
|
|
||||||
if (c & 0x02) attenuation -= 3.0;
|
|
||||||
if (c & 0x04) attenuation -= 6.0;
|
|
||||||
if (c & 0x08) attenuation -= 12.0;
|
|
||||||
if (c & 0x10) attenuation -= 24.0;
|
|
||||||
|
|
||||||
attenuation = pow(10, attenuation / 10);
|
|
||||||
|
|
||||||
ad1848_vols_5bits_aux_gain[c] = (attenuation * 65536);
|
|
||||||
}
|
|
||||||
|
|
||||||
ad1848->type = type;
|
case 0x40: /*Mono, 16-bit PCM*/
|
||||||
|
temp = dma_channel_read(ad1848->dma);
|
||||||
timer_add(&ad1848->timer_count, ad1848_poll, ad1848, 0);
|
ad1848->out_l = ad1848->out_r = (dma_channel_read(ad1848->dma) << 8) | temp;
|
||||||
|
break;
|
||||||
|
case 0x50: /*Stereo, 16-bit PCM*/
|
||||||
|
temp = dma_channel_read(ad1848->dma);
|
||||||
|
ad1848->out_l = (dma_channel_read(ad1848->dma) << 8) | temp;
|
||||||
|
temp = dma_channel_read(ad1848->dma);
|
||||||
|
ad1848->out_r = (dma_channel_read(ad1848->dma) << 8) | temp;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
if (ad1848->type != AD1848_TYPE_DEFAULT && ad1848->type != AD1848_TYPE_CS4248)
|
if (ad1848->regs[6] & 0x80)
|
||||||
sound_set_cd_audio_filter(ad1848_filter_cd_audio, ad1848);
|
ad1848->out_l = 0;
|
||||||
|
else
|
||||||
|
ad1848->out_l = (ad1848->out_l * ad1848_vols_6bits[ad1848->regs[6] & 0x3f]) >> 16;
|
||||||
|
|
||||||
|
if (ad1848->regs[7] & 0x80)
|
||||||
|
ad1848->out_r = 0;
|
||||||
|
else
|
||||||
|
ad1848->out_r = (ad1848->out_r * ad1848_vols_6bits[ad1848->regs[7] & 0x3f]) >> 16;
|
||||||
|
|
||||||
|
if (ad1848->count < 0)
|
||||||
|
{
|
||||||
|
ad1848->count = ad1848->regs[15] | (ad1848->regs[14] << 8);
|
||||||
|
if (!(ad1848->status & 0x01))
|
||||||
|
{
|
||||||
|
ad1848->status |= 0x01;
|
||||||
|
if (ad1848->regs[10] & 2)
|
||||||
|
picint(1 << ad1848->irq);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ad1848->count--;
|
||||||
|
} else {
|
||||||
|
ad1848->out_l = ad1848->out_r = 0;
|
||||||
|
ad1848->cd_vol_l = ad1848->cd_vol_r = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
ad1848_filter_cd_audio(int channel, double *buffer, void *priv)
|
||||||
|
{
|
||||||
|
ad1848_t *ad1848 = (ad1848_t *) priv;
|
||||||
|
double c;
|
||||||
|
double volume = channel ? ad1848->cd_vol_r : ad1848->cd_vol_l;
|
||||||
|
|
||||||
|
c = ((*buffer) * volume) / 65536.0;
|
||||||
|
*buffer = c;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void
|
||||||
|
ad1848_init(ad1848_t *ad1848, int type)
|
||||||
|
{
|
||||||
|
int c;
|
||||||
|
double attenuation;
|
||||||
|
|
||||||
|
ad1848->status = 0xcc;
|
||||||
|
ad1848->index = ad1848->trd = 0;
|
||||||
|
ad1848->mce = 0x40;
|
||||||
|
|
||||||
|
ad1848->regs[0] = ad1848->regs[1] = 0;
|
||||||
|
ad1848->regs[2] = ad1848->regs[3] = 0x80; /* Line-in */
|
||||||
|
ad1848->regs[4] = ad1848->regs[5] = 0x80;
|
||||||
|
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;
|
||||||
|
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) {
|
||||||
|
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;
|
||||||
|
} 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;
|
||||||
|
|
||||||
|
for (c = 0; c < 64; c++) {
|
||||||
|
attenuation = 0.0;
|
||||||
|
if (c & 0x01) attenuation -= 1.5;
|
||||||
|
if (c & 0x02) attenuation -= 3.0;
|
||||||
|
if (c & 0x04) attenuation -= 6.0;
|
||||||
|
if (c & 0x08) attenuation -= 12.0;
|
||||||
|
if (c & 0x10) attenuation -= 24.0;
|
||||||
|
if (c & 0x20) attenuation -= 48.0;
|
||||||
|
|
||||||
|
attenuation = pow(10, attenuation / 10);
|
||||||
|
|
||||||
|
ad1848_vols_6bits[c] = (int)(attenuation * 65536);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 0; c < 32; c++) {
|
||||||
|
attenuation = 12.0;
|
||||||
|
if (c & 0x01) attenuation -= 1.5;
|
||||||
|
if (c & 0x02) attenuation -= 3.0;
|
||||||
|
if (c & 0x04) attenuation -= 6.0;
|
||||||
|
if (c & 0x08) attenuation -= 12.0;
|
||||||
|
if (c & 0x10) attenuation -= 24.0;
|
||||||
|
|
||||||
|
attenuation = pow(10, attenuation / 10);
|
||||||
|
|
||||||
|
ad1848_vols_5bits_aux_gain[c] = (attenuation * 65536);
|
||||||
|
}
|
||||||
|
|
||||||
|
ad1848->type = type;
|
||||||
|
|
||||||
|
timer_add(&ad1848->timer_count, ad1848_poll, ad1848, 0);
|
||||||
|
|
||||||
|
if (ad1848->type != AD1848_TYPE_DEFAULT && ad1848->type != AD1848_TYPE_CS4248)
|
||||||
|
sound_set_cd_audio_filter(ad1848_filter_cd_audio, ad1848);
|
||||||
}
|
}
|
||||||
|
|||||||
@@ -34,217 +34,231 @@
|
|||||||
#include <86box/snd_opl.h>
|
#include <86box/snd_opl.h>
|
||||||
|
|
||||||
|
|
||||||
/*530, 11, 3 - 530=23*/
|
/* 530, 11, 3 - 530=23
|
||||||
/*530, 11, 1 - 530=22*/
|
* 530, 11, 1 - 530=22
|
||||||
/*530, 11, 0 - 530=21*/
|
* 530, 11, 0 - 530=21
|
||||||
/*530, 10, 1 - 530=1a*/
|
* 530, 10, 1 - 530=1a
|
||||||
/*530, 9, 1 - 530=12*/
|
* 530, 9, 1 - 530=12
|
||||||
/*530, 7, 1 - 530=0a*/
|
* 530, 7, 1 - 530=0a
|
||||||
/*604, 11, 1 - 530=22*/
|
* 604, 11, 1 - 530=22
|
||||||
/*e80, 11, 1 - 530=22*/
|
* e80, 11, 1 - 530=22
|
||||||
/*f40, 11, 1 - 530=22*/
|
* f40, 11, 1 - 530=22
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
static int wss_dma[4] = {0, 0, 1, 3};
|
static const int wss_dma[4] = {0, 0, 1, 3};
|
||||||
static int wss_irq[8] = {5, 7, 9, 10, 11, 12, 14, 15}; /*W95 only uses 7-9, others may be wrong*/
|
static const int wss_irq[8] = {5, 7, 9, 10, 11, 12, 14, 15}; /* W95 only uses 7-9, others may be wrong */
|
||||||
|
|
||||||
typedef struct wss_t
|
|
||||||
{
|
|
||||||
uint8_t config;
|
|
||||||
|
|
||||||
ad1848_t ad1848;
|
typedef struct wss_t {
|
||||||
opl_t opl;
|
uint8_t config;
|
||||||
|
|
||||||
int opl_enabled;
|
ad1848_t ad1848;
|
||||||
uint8_t pos_regs[8];
|
opl_t opl;
|
||||||
|
|
||||||
|
int opl_enabled;
|
||||||
|
uint8_t pos_regs[8];
|
||||||
} wss_t;
|
} wss_t;
|
||||||
|
|
||||||
uint8_t wss_read(uint16_t addr, void *p)
|
|
||||||
{
|
uint8_t
|
||||||
wss_t *wss = (wss_t *)p;
|
wss_read(uint16_t addr, void *priv) {
|
||||||
uint8_t temp;
|
wss_t *wss = (wss_t *) priv;
|
||||||
temp = 4 | (wss->config & 0x40);
|
return 4 | (wss->config & 0x40);
|
||||||
return temp;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void wss_write(uint16_t addr, uint8_t val, void *p)
|
|
||||||
{
|
|
||||||
wss_t *wss = (wss_t *)p;
|
|
||||||
|
|
||||||
wss->config = val;
|
void
|
||||||
ad1848_setdma(&wss->ad1848, wss_dma[val & 3]);
|
wss_write(uint16_t addr, uint8_t val, void *priv)
|
||||||
ad1848_setirq(&wss->ad1848, wss_irq[(val >> 3) & 7]);
|
{
|
||||||
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
|
||||||
|
wss->config = val;
|
||||||
|
ad1848_setdma(&wss->ad1848, wss_dma[val & 3]);
|
||||||
|
ad1848_setirq(&wss->ad1848, wss_irq[(val >> 3) & 7]);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void wss_get_buffer(int32_t *buffer, int len, void *p)
|
|
||||||
|
static void
|
||||||
|
wss_get_buffer(int32_t *buffer, int len, void *priv)
|
||||||
{
|
{
|
||||||
wss_t *wss = (wss_t *)p;
|
wss_t *wss = (wss_t *) priv;
|
||||||
int c;
|
int c;
|
||||||
|
|
||||||
opl3_update(&wss->opl);
|
opl3_update(&wss->opl);
|
||||||
ad1848_update(&wss->ad1848);
|
ad1848_update(&wss->ad1848);
|
||||||
for (c = 0; c < len * 2; c++) {
|
for (c = 0; c < len * 2; c++) {
|
||||||
buffer[c] += wss->opl.buffer[c];
|
buffer[c] += wss->opl.buffer[c];
|
||||||
buffer[c] += (wss->ad1848.buffer[c] / 2);
|
buffer[c] += (wss->ad1848.buffer[c] / 2);
|
||||||
}
|
}
|
||||||
|
|
||||||
wss->opl.pos = 0;
|
wss->opl.pos = 0;
|
||||||
wss->ad1848.pos = 0;
|
wss->ad1848.pos = 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
void *wss_init(const device_t *info)
|
|
||||||
|
void *
|
||||||
|
wss_init(const device_t *info)
|
||||||
{
|
{
|
||||||
wss_t *wss = malloc(sizeof(wss_t));
|
wss_t *wss = malloc(sizeof(wss_t));
|
||||||
memset(wss, 0, sizeof(wss_t));
|
memset(wss, 0, sizeof(wss_t));
|
||||||
|
|
||||||
uint16_t addr = device_get_config_hex16("base");
|
uint16_t addr = device_get_config_hex16("base");
|
||||||
wss->opl_enabled = device_get_config_int("opl");
|
wss->opl_enabled = device_get_config_int("opl");
|
||||||
|
|
||||||
if (wss->opl_enabled)
|
if (wss->opl_enabled)
|
||||||
opl3_init(&wss->opl);
|
opl3_init(&wss->opl);
|
||||||
|
|
||||||
ad1848_init(&wss->ad1848, AD1848_TYPE_DEFAULT);
|
|
||||||
|
|
||||||
ad1848_setirq(&wss->ad1848, 7);
|
ad1848_init(&wss->ad1848, AD1848_TYPE_DEFAULT);
|
||||||
ad1848_setdma(&wss->ad1848, 3);
|
|
||||||
|
|
||||||
if (wss->opl_enabled)
|
ad1848_setirq(&wss->ad1848, 7);
|
||||||
|
ad1848_setdma(&wss->ad1848, 3);
|
||||||
|
|
||||||
|
if (wss->opl_enabled)
|
||||||
|
io_sethandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
||||||
|
|
||||||
|
io_sethandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
||||||
|
io_sethandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
||||||
|
|
||||||
|
sound_add_handler(wss_get_buffer, wss);
|
||||||
|
|
||||||
|
return wss;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static uint8_t
|
||||||
|
ncr_audio_mca_read(int port, void *priv)
|
||||||
|
{
|
||||||
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
return wss->pos_regs[port & 7];
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
ncr_audio_mca_write(int port, uint8_t val, void *priv)
|
||||||
|
{
|
||||||
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
uint16_t ports[4] = {0x530, 0xE80, 0xF40, 0x604};
|
||||||
|
uint16_t addr;
|
||||||
|
|
||||||
|
if (port < 0x102)
|
||||||
|
return;
|
||||||
|
|
||||||
|
wss->opl_enabled = (wss->pos_regs[2] & 0x20) ? 1 : 0;
|
||||||
|
addr = ports[(wss->pos_regs[2] & 0x18) >> 3];
|
||||||
|
|
||||||
|
io_removehandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
||||||
|
io_removehandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
||||||
|
io_removehandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
||||||
|
|
||||||
|
wss->pos_regs[port & 7] = val;
|
||||||
|
|
||||||
|
if (wss->pos_regs[2] & 1) {
|
||||||
|
addr = ports[(wss->pos_regs[2] & 0x18) >> 3];
|
||||||
|
|
||||||
|
if (wss->opl_enabled)
|
||||||
io_sethandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
io_sethandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
||||||
|
|
||||||
io_sethandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
io_sethandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
||||||
io_sethandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
io_sethandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
||||||
|
}
|
||||||
sound_add_handler(wss_get_buffer, wss);
|
|
||||||
|
|
||||||
return wss;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static uint8_t ncr_audio_mca_read(int port, void *p)
|
|
||||||
|
static uint8_t
|
||||||
|
ncr_audio_mca_feedb(void *priv)
|
||||||
{
|
{
|
||||||
wss_t *wss = (wss_t *)p;
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
return (wss->pos_regs[2] & 1);
|
||||||
return wss->pos_regs[port & 7];
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static void ncr_audio_mca_write(int port, uint8_t val, void *p)
|
|
||||||
|
void *
|
||||||
|
ncr_audio_init(const device_t *info)
|
||||||
{
|
{
|
||||||
wss_t *wss = (wss_t *)p;
|
wss_t *wss = malloc(sizeof(wss_t));
|
||||||
uint16_t ports[4] = {0x530, 0xE80, 0xF40, 0x604};
|
memset(wss, 0, sizeof(wss_t));
|
||||||
uint16_t addr;
|
|
||||||
|
|
||||||
if (port < 0x102)
|
opl3_init(&wss->opl);
|
||||||
return;
|
ad1848_init(&wss->ad1848, AD1848_TYPE_DEFAULT);
|
||||||
|
|
||||||
wss->opl_enabled = (wss->pos_regs[2] & 0x20) ? 1 : 0;
|
ad1848_setirq(&wss->ad1848, 7);
|
||||||
addr = ports[(wss->pos_regs[2] & 0x18) >> 3];
|
ad1848_setdma(&wss->ad1848, 3);
|
||||||
|
|
||||||
io_removehandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
|
||||||
io_removehandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
|
||||||
io_removehandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
|
||||||
|
|
||||||
wss->pos_regs[port & 7] = val;
|
mca_add(ncr_audio_mca_read, ncr_audio_mca_write, ncr_audio_mca_feedb, NULL, wss);
|
||||||
|
wss->pos_regs[0] = 0x16;
|
||||||
|
wss->pos_regs[1] = 0x51;
|
||||||
|
|
||||||
if (wss->pos_regs[2] & 1) {
|
sound_add_handler(wss_get_buffer, wss);
|
||||||
addr = ports[(wss->pos_regs[2] & 0x18) >> 3];
|
|
||||||
|
|
||||||
if (wss->opl_enabled)
|
return wss;
|
||||||
io_sethandler(0x0388, 0x0004, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &wss->opl);
|
|
||||||
|
|
||||||
io_sethandler(addr, 0x0004, wss_read, NULL, NULL, wss_write, NULL, NULL, wss);
|
|
||||||
io_sethandler(addr+4, 0x0004, ad1848_read, NULL, NULL, ad1848_write, NULL, NULL, &wss->ad1848);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static uint8_t ncr_audio_mca_feedb(void *p)
|
|
||||||
{
|
|
||||||
wss_t *wss = (wss_t *)p;
|
|
||||||
|
|
||||||
return (wss->pos_regs[2] & 1);
|
void
|
||||||
|
wss_close(void *priv)
|
||||||
|
{
|
||||||
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
free(wss);
|
||||||
}
|
}
|
||||||
|
|
||||||
void *ncr_audio_init(const device_t *info)
|
|
||||||
|
void
|
||||||
|
wss_speed_changed(void *priv)
|
||||||
{
|
{
|
||||||
wss_t *wss = malloc(sizeof(wss_t));
|
wss_t *wss = (wss_t *) priv;
|
||||||
|
ad1848_speed_changed(&wss->ad1848);
|
||||||
memset(wss, 0, sizeof(wss_t));
|
|
||||||
|
|
||||||
opl3_init(&wss->opl);
|
|
||||||
ad1848_init(&wss->ad1848, AD1848_TYPE_DEFAULT);
|
|
||||||
|
|
||||||
ad1848_setirq(&wss->ad1848, 7);
|
|
||||||
ad1848_setdma(&wss->ad1848, 3);
|
|
||||||
|
|
||||||
mca_add(ncr_audio_mca_read, ncr_audio_mca_write, ncr_audio_mca_feedb, NULL, wss);
|
|
||||||
wss->pos_regs[0] = 0x16;
|
|
||||||
wss->pos_regs[1] = 0x51;
|
|
||||||
|
|
||||||
sound_add_handler(wss_get_buffer, wss);
|
|
||||||
|
|
||||||
return wss;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void wss_close(void *p)
|
|
||||||
{
|
|
||||||
wss_t *wss = (wss_t *)p;
|
|
||||||
|
|
||||||
free(wss);
|
static const device_config_t wss_config[] = {
|
||||||
}
|
{
|
||||||
|
"base", "Address", CONFIG_HEX16, "", 0x530, "", { 0 },
|
||||||
void wss_speed_changed(void *p)
|
|
||||||
{
|
|
||||||
wss_t *wss = (wss_t *)p;
|
|
||||||
|
|
||||||
ad1848_speed_changed(&wss->ad1848);
|
|
||||||
}
|
|
||||||
|
|
||||||
static const device_config_t wss_config[] =
|
|
||||||
{
|
|
||||||
{
|
|
||||||
"base", "Address", CONFIG_HEX16, "", 0x530, "", { 0 },
|
|
||||||
{
|
|
||||||
{
|
|
||||||
"0x530", 0x530
|
|
||||||
},
|
|
||||||
{
|
|
||||||
"0x604", 0x604
|
|
||||||
},
|
|
||||||
{
|
|
||||||
"0xe80", 0xe80
|
|
||||||
},
|
|
||||||
{
|
|
||||||
"0xf40", 0xf40
|
|
||||||
},
|
|
||||||
{
|
|
||||||
""
|
|
||||||
}
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
{
|
||||||
"opl", "Enable OPL", CONFIG_BINARY, "", 1
|
{
|
||||||
},
|
"0x530", 0x530
|
||||||
{
|
},
|
||||||
"", "", -1
|
{
|
||||||
}
|
"0x604", 0x604
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"0xe80", 0xe80
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"0xf40", 0xf40
|
||||||
|
},
|
||||||
|
{
|
||||||
|
""
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"opl", "Enable OPL", CONFIG_BINARY, "", 1
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"", "", -1
|
||||||
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
const device_t wss_device =
|
const device_t wss_device =
|
||||||
{
|
{
|
||||||
"Windows Sound System",
|
"Windows Sound System",
|
||||||
DEVICE_ISA | DEVICE_AT, 0,
|
DEVICE_ISA | DEVICE_AT, 0,
|
||||||
wss_init, wss_close, NULL,
|
wss_init, wss_close, NULL,
|
||||||
{ NULL },
|
{ NULL },
|
||||||
wss_speed_changed,
|
wss_speed_changed,
|
||||||
NULL,
|
NULL,
|
||||||
wss_config
|
wss_config
|
||||||
};
|
};
|
||||||
|
|
||||||
const device_t ncr_business_audio_device =
|
const device_t ncr_business_audio_device =
|
||||||
{
|
{
|
||||||
"NCR Business Audio",
|
"NCR Business Audio",
|
||||||
DEVICE_MCA, 0,
|
DEVICE_MCA, 0,
|
||||||
ncr_audio_init, wss_close, NULL,
|
ncr_audio_init, wss_close, NULL,
|
||||||
{ NULL },
|
{ NULL },
|
||||||
wss_speed_changed,
|
wss_speed_changed,
|
||||||
NULL,
|
NULL,
|
||||||
NULL
|
NULL
|
||||||
};
|
};
|
||||||
|
|||||||
Reference in New Issue
Block a user