forked from Dniel97/segatools
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
#include <windows.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "board/io4.h"
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#include "chusanhook/chuni-dll.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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// Incorrect IR beam mappings retained for backward compatibility
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static const struct chunithm_jvs_ir_mask chunithm_jvs_ir_masks_v1[] = {
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{ 0, 1 << 13 },
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{ 1 << 13, 0 },
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{ 0, 1 << 12 },
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{ 1 << 12, 0 },
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{ 0, 1 << 11 },
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{ 1 << 11, 0 },
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};
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static const struct chunithm_jvs_ir_mask chunithm_jvs_ir_masks[] = {
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{ 1 << 13, 0 },
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{ 0, 1 << 13 },
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{ 1 << 12, 0 },
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{ 0, 1 << 12 },
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{ 1 << 11, 0 },
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{ 0, 1 << 11 },
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};
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static HRESULT chusan_io4_poll(void* ctx, struct io4_state* state);
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static uint16_t coins;
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static const struct io4_ops chusan_io4_ops = {
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.poll = chusan_io4_poll,
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};
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HRESULT chusan_io4_hook_init(const struct io4_config* cfg)
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{
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HRESULT hr;
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assert(chuni_dll.jvs_init != NULL);
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dprintf("USB I/O: Starting IO backend\n");
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hr = chuni_dll.jvs_init();
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if (FAILED(hr)) {
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dprintf("USB I/O: Backend error, I/O disconnected: %x\n", (int)hr);
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return hr;
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}
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io4_hook_init(cfg, &chusan_io4_ops, NULL);
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return S_OK;
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}
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static HRESULT chusan_io4_poll(void* ctx, struct io4_state* state)
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{
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const struct chunithm_jvs_ir_mask *masks;
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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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memset(state, 0, sizeof(*state));
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opbtn = 0;
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beams = 0;
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chuni_dll.jvs_poll(&opbtn, &beams);
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chuni_dll.jvs_read_coin_counter(&coins);
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if (chuni_dll.api_version >= 0x0101) {
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// Use correct mapping
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masks = chunithm_jvs_ir_masks;
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} else {
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// Use backwards-compatible incorrect mapping
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masks = chunithm_jvs_ir_masks_v1;
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}
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if (opbtn & CHUNI_IO_OPBTN_TEST) {
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state->buttons[0] |= IO4_BUTTON_TEST;
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}
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if (opbtn & CHUNI_IO_OPBTN_SERVICE) {
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state->buttons[0] |= IO4_BUTTON_SERVICE;
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}
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// Update the coin counter with the value from jvs_read_coin_counter
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state->chutes[0] = coins << 8;
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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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state->buttons[0] |= masks[i].p1;
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state->buttons[1] |= masks[i].p2;
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}
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}
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return S_OK;
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}
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