Add ESS ES1688 (COMPLETELY UNTESTED!!!)
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Cacodemon345
Kagamiin~
@@ -184,6 +184,10 @@ extern const device_t cmi8338_onboard_device;
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extern const device_t cmi8738_device;
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extern const device_t cmi8738_onboard_device;
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extern const device_t cmi8738_6ch_onboard_device;
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/* ESS Technology */
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extern const device_t ess_1688_device;
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#endif
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#endif /*EMU_SOUND_H*/
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@@ -255,4 +255,263 @@ ess_mixer_reset(ess_t *ess)
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{
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ess_mixer_write(4, 0, ess);
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ess_mixer_write(5, 0, ess);
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}
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}
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void
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ess_get_buffer_sbpro(int32_t *buffer, int len, void *priv)
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{
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sb_t *sb = (sb_t *) priv;
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const sb_ct1345_mixer_t *mixer = &sb->mixer_sbpro;
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double out_l = 0.0;
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double out_r = 0.0;
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sb_dsp_update(&sb->dsp);
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for (int c = 0; c < len * 2; c += 2) {
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out_l = 0.0;
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out_r = 0.0;
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/* TODO: Implement the stereo switch on the mixer instead of on the dsp? */
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if (mixer->output_filter) {
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out_l += (sb_iir(0, 0, (double) sb->dsp.buffer[c]) * mixer->voice_l) / 3.9;
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out_r += (sb_iir(0, 1, (double) sb->dsp.buffer[c + 1]) * mixer->voice_r) / 3.9;
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} else {
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out_l += (sb->dsp.buffer[c] * mixer->voice_l) / 3.0;
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out_r += (sb->dsp.buffer[c + 1] * mixer->voice_r) / 3.0;
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}
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/* TODO: recording CD, Mic with AGC or line in. Note: mic volume does not affect recording. */
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out_l *= mixer->master_l;
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out_r *= mixer->master_r;
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buffer[c] += (int32_t) out_l;
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buffer[c + 1] += (int32_t) out_r;
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}
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sb->dsp.pos = 0;
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}
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void
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ess_get_music_buffer_sbpro(int32_t *buffer, int len, void *priv)
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{
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ess_t *ess = (ess_t *) priv;
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const ess_mixer_t *mixer = &ess->mixer_sbpro;
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double out_l = 0.0;
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double out_r = 0.0;
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const int32_t *opl_buf = NULL;
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const int32_t *opl2_buf = NULL;
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opl_buf = ess->opl.update(ess->opl.priv);
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sb_dsp_update(&ess->dsp);
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for (int c = 0; c < len * 2; c += 2) {
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out_l = 0.0;
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out_r = 0.0;
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{
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out_l = (((double) opl_buf[c]) * mixer->fm_l) * 0.7171630859375;
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out_r = (((double) opl_buf[c + 1]) * mixer->fm_r) * 0.7171630859375;
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if (ess->opl_mix && ess->opl_mixer)
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ess->opl_mix(ess->opl_mixer, &out_l, &out_r);
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}
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/* TODO: recording CD, Mic with AGC or line in. Note: mic volume does not affect recording. */
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out_l *= mixer->master_l;
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out_r *= mixer->master_r;
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buffer[c] += (int32_t) out_l;
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buffer[c + 1] += (int32_t) out_r;
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}
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ess->opl.reset_buffer(ess->opl.priv);
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}
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void
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ess_filter_cd_audio(int channel, double *buffer, void *priv)
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{
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const ess_t *ess = (ess_t *) priv;
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const ess_mixer_t *mixer = &ess->mixer_sbpro;
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double c;
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double cd = channel ? mixer->cd_r : mixer->cd_l;
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double master = channel ? mixer->master_r : mixer->master_l;
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if (mixer->output_filter)
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c = (sb_iir(2, channel, *buffer) * cd) / 3.9;
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else
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c = (*buffer * cd) / 3.0;
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*buffer = c * master;
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}
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static void *
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ess_1688_init(UNUSED(const device_t *info))
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{
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/* SB Pro 2 port mappings, 220h or 240h.
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2x0 to 2x3 -> FM chip (18 voices)
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2x4 to 2x5 -> Mixer interface
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2x6, 2xA, 2xC, 2xE -> DSP chip
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2x8, 2x9, 388 and 389 FM chip (9 voices)
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2x0+10 to 2x0+13 CDROM interface. */
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ess_t *ess = malloc(sizeof(ess_t));
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uint16_t addr = device_get_config_hex16("base");
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memset(ess, 0, sizeof(ess_t));
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fm_driver_get(FM_ESFM, &ess->opl);
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sb_dsp_set_real_opl(&ess->dsp, 1);
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sb_dsp_init(&ess->dsp, SBPRO2, SB_SUBTYPE_ESS_ES1688, ess);
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sb_dsp_setaddr(&ess->dsp, addr);
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sb_dsp_setirq(&ess->dsp, device_get_config_int("irq"));
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sb_dsp_setdma8(&ess->dsp, device_get_config_int("dma"));
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ess_mixer_reset(ess);
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/* DSP I/O handler is activated in sb_dsp_setaddr */
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{
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io_sethandler(addr, 0x0004,
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ess->opl.read, NULL, NULL,
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ess->opl.write, NULL, NULL,
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ess->opl.priv);
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io_sethandler(addr + 8, 0x0002,
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ess->opl.read, NULL, NULL,
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ess->opl.write, NULL, NULL,
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ess->opl.priv);
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io_sethandler(0x0388, 0x0004,
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ess->opl.read, NULL, NULL,
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ess->opl.write, NULL, NULL,
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ess->opl.priv);
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}
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ess->mixer_enabled = 1;
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io_sethandler(addr + 4, 0x0002,
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ess_mixer_read, NULL, NULL,
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ess_mixer_write, NULL, NULL,
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ess);
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sound_add_handler(ess_get_buffer_sbpro, ess);
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music_add_handler(ess_get_music_buffer_sbpro, ess);
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sound_set_cd_audio_filter(ess_filter_cd_audio, ess);
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if (device_get_config_int("receive_input"))
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midi_in_handler(1, sb_dsp_input_msg, sb_dsp_input_sysex, &ess->dsp);
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return ess;
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}
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void
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ess_close(void *priv)
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{
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ess_t *ess = (ess_t *) priv;
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sb_dsp_close(&ess->dsp);
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free(ess);
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}
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void
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ess_speed_changed(void *priv)
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{
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ess_t *ess = (ess_t *) priv;
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sb_dsp_speed_changed(&ess->dsp);
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}
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static const device_config_t ess_config[] = {
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{
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.name = "base",
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.description = "Address",
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.type = CONFIG_HEX16,
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.default_string = "",
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.default_int = 0x220,
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.file_filter = "",
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.spinner = { 0 },
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.selection = {
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{
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.description = "0x220",
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.value = 0x220
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},
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{
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.description = "0x240",
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.value = 0x240
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},
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{ .description = "" }
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}
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},
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{
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.name = "irq",
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.description = "IRQ",
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.type = CONFIG_SELECTION,
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.default_string = "",
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.default_int = 7,
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.file_filter = "",
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.spinner = { 0 },
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.selection = {
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{
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.description = "IRQ 2",
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.value = 2
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},
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{
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.description = "IRQ 5",
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.value = 5
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},
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{
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.description = "IRQ 7",
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.value = 7
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},
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{
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.description = "IRQ 10",
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.value = 10
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},
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{ .description = "" }
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}
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},
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{
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.name = "dma",
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.description = "DMA",
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.type = CONFIG_SELECTION,
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.default_string = "",
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.default_int = 1,
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.file_filter = "",
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.spinner = { 0 },
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.selection = {
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{
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.description = "DMA 0",
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.value = 0
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},
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{
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.description = "DMA 1",
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.value = 1
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},
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{
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.description = "DMA 3",
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.value = 3
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},
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{ .description = "" }
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}
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},
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{
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.name = "opl",
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.description = "Enable OPL",
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.type = CONFIG_BINARY,
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.default_string = "",
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.default_int = 1
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},
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{
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.name = "receive_input",
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.description = "Receive input (SB MIDI)",
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.type = CONFIG_BINARY,
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.default_string = "",
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.default_int = 1
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},
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{ .name = "", .description = "", .type = CONFIG_END }
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};
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const device_t ess_1688_device = {
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.name = "ESS Technology ESS1688",
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.internal_name = "ess_1688",
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.flags = DEVICE_ISA,
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.local = 0,
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.init = ess_1688_init,
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.close = ess_close,
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.reset = NULL,
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{ .available = NULL },
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.speed_changed = ess_speed_changed,
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.force_redraw = NULL,
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.config = ess_config
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};
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@@ -165,6 +165,7 @@ static const SOUND_CARD sound_cards[] = {
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{ &es1371_device },
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{ &ad1881_device },
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{ &cs4297a_device },
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{ &ess_1688_device },
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{ NULL }
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// clang-format on
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};
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