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#include "fmplayer_common.h"
#include "fmdriver/fmdriver.h"
#include "fmdriver/ppz8.h"
#include "libopna/opna.h"
#include "libopna/opnatimer.h"
#include <string.h>
enum {
SRATE = 55467,
PPZ8MIX = 0xa000,
};
static void opna_writereg_libopna(struct fmdriver_work *work, unsigned addr, unsigned data) {
struct opna_timer *timer = (struct opna_timer *)work->opna;
opna_timer_writereg(timer, addr, data);
}
static unsigned opna_readreg_libopna(struct fmdriver_work *work, unsigned addr) {
struct opna_timer *timer = (struct opna_timer *)work->opna;
return opna_readreg(timer->opna, addr);
}
static uint8_t opna_status_libopna(struct fmdriver_work *work, bool a1) {
struct opna_timer *timer = (struct opna_timer *)work->opna;
uint8_t status = opna_timer_status(timer);
if (!a1) {
status &= 0x83;
}
return status;
}
static void opna_int_cb(void *userptr) {
struct fmdriver_work *work = (struct fmdriver_work *)userptr;
work->driver_opna_interrupt(work);
}
static void opna_mix_cb(void *userptr, int16_t *buf, unsigned samples) {
struct ppz8 *ppz8 = (struct ppz8 *)userptr;
ppz8_mix(ppz8, buf, samples);
}
void fmplayer_init_work_opna(
struct fmdriver_work *work,
struct ppz8 *ppz8,
struct opna *opna,
struct opna_timer *timer,
void *adpcm_ram
) {
opna_reset(opna);
fmplayer_drum_rom_load(&opna->drum);
opna_adpcm_set_ram_256k(&opna->adpcm, adpcm_ram);
opna_timer_reset(timer, opna);
ppz8_init(ppz8, SRATE, PPZ8MIX);
memset(work, 0, sizeof(*work));
work->opna_writereg = opna_writereg_libopna;
work->opna_readreg = opna_readreg_libopna;
work->opna_status = opna_status_libopna;
work->opna = timer;
work->ppz8 = ppz8;
work->ppz8_functbl = &ppz8_functbl;
opna_timer_set_int_callback(timer, opna_int_cb, work);
opna_timer_set_mix_callback(timer, opna_mix_cb, ppz8);
}
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