forked from Dniel97/segatools
92 lines
1.9 KiB
C
92 lines
1.9 KiB
C
#include <windows.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "amex/jvs.h"
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#include "board/io3.h"
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#include "chuniio/chuniio.h"
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#include "jvs/jvs-bus.h"
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#include "util/dprintf.h"
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struct chunithm_jvs_ir_mask {
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uint16_t p1;
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uint16_t p2;
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};
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static void chunithm_jvs_read_switches(void *ctx, struct io3_switch_state *out);
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static uint16_t chunithm_jvs_read_coin_counter(void *ctx, uint8_t slot_no);
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static const struct io3_ops chunithm_jvs_io3_ops = {
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.read_switches = chunithm_jvs_read_switches,
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.read_coin_counter = chunithm_jvs_read_coin_counter,
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};
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static const struct chunithm_jvs_ir_mask chunithm_jvs_ir_masks[] = {
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{ 0x0000, 0x0020 },
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{ 0x0020, 0x0000 },
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{ 0x0000, 0x0010 },
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{ 0x0010, 0x0000 },
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{ 0x0000, 0x0008 },
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{ 0x0008, 0x0000 },
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};
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static struct io3 chunithm_jvs_io3;
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void chunithm_jvs_init(void)
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{
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io3_init(&chunithm_jvs_io3, NULL, &chunithm_jvs_io3_ops, NULL);
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jvs_attach(&chunithm_jvs_io3.jvs);
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}
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static void chunithm_jvs_read_switches(void *ctx, struct io3_switch_state *out)
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{
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uint8_t opbtn;
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uint8_t beams;
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size_t i;
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assert(out != NULL);
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opbtn = 0;
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beams = 0;
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chuni_io_jvs_poll(&opbtn, &beams);
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out->system = 0x00;
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out->p1 = 0x0000;
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out->p2 = 0x0000;
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if (opbtn & 0x01) {
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out->system = 0x80;
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} else {
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out->system = 0x00;
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}
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if (opbtn & 0x02) {
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out->p1 |= 0x4000;
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}
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for (i = 0 ; i < 6 ; i++) {
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/* Beam "press" is active-low hence the ~ */
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if (~beams & (1 << i)) {
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out->p1 |= chunithm_jvs_ir_masks[i].p1;
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out->p2 |= chunithm_jvs_ir_masks[i].p2;
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}
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}
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}
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static uint16_t chunithm_jvs_read_coin_counter(void *ctx, uint8_t slot_no)
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{
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if (slot_no > 0) {
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return 0;
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}
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return chuni_io_jvs_read_coin_counter();
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}
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