chusan: added chusanhook, led board fix, config added

credits go to @domeori https://dev.s-ul.net/domeori/segatools/-/tree/mr-imports

Package.mk

@@ -118,6 +118,26 @@ $(BUILD_DIR_ZIP)/mercury.zip:
 	$(V)strip $(BUILD_DIR_ZIP)/mercury/*.{exe,dll}
 	$(V)cd $(BUILD_DIR_ZIP)/mercury ; zip -r ../mercury.zip *
 
+$(BUILD_DIR_ZIP)/chusan.zip:
+	$(V)echo ... $@
+	$(V)mkdir -p $(BUILD_DIR_ZIP)/chusan
+	$(V)mkdir -p $(BUILD_DIR_ZIP)/chusan/DEVICE
+	$(V)cp $(DIST_DIR)/chusan/segatools.ini \
+		$(DIST_DIR)/chusan/start.bat \
+		$(BUILD_DIR_ZIP)/chusan
+	$(V)cp $(BUILD_DIR_32)/chusanhook/chusanhook.dll \
+		$(BUILD_DIR_ZIP)/chusan/chusanhook_x86.dll
+	$(V)cp $(BUILD_DIR_64)/chusanhook/chusanhook.dll \
+		$(BUILD_DIR_ZIP)/chusan/chusanhook_x64.dll
+	$(V)cp $(BUILD_DIR_32)/subprojects/capnhook/inject/inject.exe \
+		$(BUILD_DIR_ZIP)/chusan/inject_x86.exe
+	$(V)cp $(BUILD_DIR_64)/subprojects/capnhook/inject/inject.exe \
+		$(BUILD_DIR_ZIP)/chusan/inject_x64.exe
+	$(V)cp pki/billing.pub \
+		pki/ca.crt \
+		$(BUILD_DIR_ZIP)/chusan/DEVICE
+	for x in exe dll; do strip $(BUILD_DIR_ZIP)/chusan/*.$$x; done
+	$(V)cd $(BUILD_DIR_ZIP)/chusan ; zip -r ../chusan.zip *
 
 $(BUILD_DIR_ZIP)/mu3.zip:
 	$(V)echo ... $@
@@ -152,6 +172,7 @@ $(BUILD_DIR_ZIP)/segatools.zip: \
 		$(BUILD_DIR_ZIP)/idac.zip \
 		$(BUILD_DIR_ZIP)/swdc.zip \
 		$(BUILD_DIR_ZIP)/mercury.zip \
+		$(BUILD_DIR_ZIP)/chusan.zip \
 		$(BUILD_DIR_ZIP)/mu3.zip \
 		CHANGELOG.md \
 		README.md \

board/led1509306-cmd.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include "board/led1509306-frame.h"
+
+enum {
+    LED_15093_06_CMD_RESET = 0x10,
+    LED_15093_06_CMD_SET_TIMEOUT = 0x11,
+    LED_15093_06_CMD_SET_DISABLE_RESPONSE = 0x14,
+    LED_15093_06_CMD_SET_LED = 0x82,
+    LED_15093_06_CMD_SET_LED_COUNT = 0x86,
+    LED_15093_06_CMD_BOARD_INFO = 0xF0,
+    LED_15093_06_CMD_BOARD_STATUS = 0xF1,
+    LED_15093_06_CMD_FW_SUM = 0xF2,
+    LED_15093_06_CMD_PROTOCOL_VER = 0xF3,
+    LED_15093_06_CMD_BOOTLOADER = 0xFD,
+};
+
+struct led1509306_req_any {
+    struct led1509306_hdr hdr;
+    uint8_t cmd;
+    uint8_t payload[256];
+};
+
+struct led1509306_resp_any {
+    struct led1509306_hdr hdr;
+    uint8_t status;
+    uint8_t cmd;
+    uint8_t report;
+    uint8_t data[32];
+};
+
+struct led1509306_resp_board_info {
+    struct led1509306_hdr hdr;
+    uint8_t status;
+    uint8_t cmd;
+    uint8_t report;
+    struct {
+        char board_num[8];
+        uint8_t _0a;
+        char chip_num[5];
+        uint8_t _ff;
+        uint8_t fw_ver;
+        // may be some more data after this that isn't checked
+    } data;
+};

board/led1509306-frame.c

@@ -0,0 +1,194 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "board/led1509306-frame.h"
+
+#include "hook/iobuf.h"
+
+static void led1509306_frame_sync(struct iobuf *src);
+static HRESULT led1509306_frame_accept(const struct iobuf *dest);
+static HRESULT led1509306_frame_encode_byte(struct iobuf *dest, uint8_t byte);
+
+/* Frame structure:
+
+   [0] Sync byte (0xE0)
+   [1] Destination address
+   [2] Source Address
+   [3] Length of data/payload
+   [4] Data/payload
+        For requests (host to board):
+            [0] Command
+            ... Payload
+        For responses (board to host):
+            [0] Status
+            [1] Command
+            [2] Report
+            ... Payload
+   [n] Checksum: Sum of all prior bytes (excluding sync byte)
+
+   Byte stuffing:
+
+   0xD0 is an escape byte. Un-escape the subsequent byte by adding 1. */
+
+static void led1509306_frame_sync(struct iobuf *src)
+{
+    size_t i;
+
+    for (i = 0 ; i < src->pos && src->bytes[i] != 0xE0 ; i++);
+
+    src->pos -= i;
+    memmove(&src->bytes[0], &src->bytes[i], i);
+}
+
+static HRESULT led1509306_frame_accept(const struct iobuf *dest)
+{
+    uint8_t checksum;
+    size_t i;
+
+    if (dest->pos < 3 || dest->pos != dest->bytes[3] + 5) {
+        return S_FALSE;
+    }
+
+    checksum = 0;
+
+    for (i = 1 ; i < dest->pos - 1 ; i++) {
+        checksum += dest->bytes[i];
+    }
+    
+    //dprintf("LED checksum %02x, expected %02x\n", checksum, dest->bytes[dest->pos - 1]);
+    
+    if (checksum != dest->bytes[dest->pos - 1]) {
+        return HRESULT_FROM_WIN32(ERROR_CRC);
+    }
+
+    return S_OK;
+}
+
+HRESULT led1509306_frame_decode(struct iobuf *dest, struct iobuf *src)
+{
+    uint8_t byte;
+    bool escape;
+    size_t i;
+    HRESULT hr;
+
+    assert(dest != NULL);
+    assert(dest->bytes != NULL || dest->nbytes == 0);
+    assert(dest->pos <= dest->nbytes);
+    assert(src != NULL);
+    assert(src->bytes != NULL || src->nbytes == 0);
+    assert(src->pos <= src->nbytes);
+
+    led1509306_frame_sync(src);
+
+    dest->pos = 0;
+    escape = false;
+
+    for (i = 0, hr = S_FALSE ; i < src->pos && hr == S_FALSE ; i++) {
+        /* Step the FSM to unstuff another byte */
+
+        byte = src->bytes[i];
+
+        if (dest->pos >= dest->nbytes) {
+            hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+        } else if (i == 0) {
+            dest->bytes[dest->pos++] = byte;
+        } else if (byte == 0xE0) {
+            hr = E_FAIL;
+        } else if (byte == 0xD0) {
+            if (escape) {
+                hr = E_FAIL;
+            }
+
+            escape = true;
+        } else if (escape) {
+            dest->bytes[dest->pos++] = byte + 1;
+            escape = false;
+        } else {
+            dest->bytes[dest->pos++] = byte;
+        }
+
+        /* Try to accept the packet we've built up so far */
+
+        if (SUCCEEDED(hr)) {
+            hr = led1509306_frame_accept(dest);
+        }
+    }
+
+    /* Handle FSM terminal state */
+
+    if (hr != S_FALSE) {
+        /* Frame was either accepted or rejected, remove it from src */
+        memmove(&src->bytes[0], &src->bytes[i], src->pos - i);
+        src->pos -= i;
+    }
+
+    return hr;
+}
+
+HRESULT led1509306_frame_encode(
+        struct iobuf *dest,
+        const void *ptr,
+        size_t nbytes)
+{
+    const uint8_t *src;
+    uint8_t checksum;
+    uint8_t byte;
+    size_t i;
+    HRESULT hr;
+
+    assert(dest != NULL);
+    assert(dest->bytes != NULL || dest->nbytes == 0);
+    assert(dest->pos <= dest->nbytes);
+    assert(ptr != NULL);
+
+    src = ptr;
+
+    assert(nbytes >= 3 && src[0] == 0xE0 && src[3] + 4 == nbytes);
+
+    if (dest->pos >= dest->nbytes) {
+        return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+    }
+
+    dest->bytes[dest->pos++] = 0xE0;
+    checksum = 0;
+    // dprintf("%02x ", 0xe0);
+
+    for (i = 1 ; i < nbytes ; i++) {
+        byte = src[i];
+        checksum += byte;
+        // dprintf("%02x ", byte);
+
+        hr = led1509306_frame_encode_byte(dest, byte);
+
+        if (FAILED(hr)) {
+            return hr;
+        }
+    }
+    // dprintf("%02x \n", checksum);
+
+    return led1509306_frame_encode_byte(dest, checksum);
+}
+
+static HRESULT led1509306_frame_encode_byte(struct iobuf *dest, uint8_t byte)
+{
+    if (byte == 0xE0 || byte == 0xD0) {
+        if (dest->pos + 2 > dest->nbytes) {
+            return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+        }
+
+        dest->bytes[dest->pos++] = 0xD0;
+        dest->bytes[dest->pos++] = byte - 1;
+    } else {
+        if (dest->pos + 1 > dest->nbytes) {
+            return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+        }
+
+        dest->bytes[dest->pos++] = byte;
+    }
+
+    return S_OK;
+}

board/led1509306-frame.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "hook/iobuf.h"
+
+enum {
+    LED_15093_06_FRAME_SYNC = 0xE0,
+};
+
+struct led1509306_hdr {
+    uint8_t sync;
+    uint8_t dest_adr;
+    uint8_t src_adr;
+    uint8_t nbytes;
+};
+
+HRESULT led1509306_frame_decode(struct iobuf *dest, struct iobuf *src);
+
+HRESULT led1509306_frame_encode(
+        struct iobuf *dest,
+        const void *ptr,
+        size_t nbytes);

board/meson.build

@@ -20,6 +20,9 @@ board_lib = static_library(
         'io3.h',
         'io4.c',
         'io4.h',
+        'led1509306-cmd.h',
+        'led1509306-frame.c',
+        'led1509306-frame.h',
         'sg-cmd.c',
         'sg-cmd.h',
         'sg-frame.c',

chunihook/config.c

@@ -43,6 +43,35 @@ void slider_config_load(struct slider_config *cfg, const wchar_t *filename)
     cfg->enable = GetPrivateProfileIntW(L"slider", L"enable", 1, filename);
 }
 
+void led1509306_config_load(struct led1509306_config *cfg, const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    wchar_t tmpstr[16];
+    
+    memset(cfg->board_number, ' ', sizeof(cfg->board_number));
+    memset(cfg->chip_number, ' ', sizeof(cfg->chip_number));
+    
+    cfg->enable = GetPrivateProfileIntW(L"ledstrip", L"enable", 1, filename);
+    cfg->fw_ver = GetPrivateProfileIntW(L"ledstrip", L"fw_ver", 0x90, filename);
+    cfg->fw_sum = GetPrivateProfileIntW(L"ledstrip", L"fw_sum", 0xadf7, filename);
+    
+    GetPrivateProfileStringW(L"ledstrip", L"board_number", L"15093-06", tmpstr, _countof(tmpstr), filename);
+    size_t n = wcstombs(cfg->board_number, tmpstr, sizeof(cfg->board_number));
+    for (int i = n; i < sizeof(cfg->board_number); i++)
+    {
+        cfg->board_number[i] = ' ';
+    }
+    
+    GetPrivateProfileStringW(L"ledstrip", L"chip_number", L"6710 ", tmpstr, _countof(tmpstr), filename);
+    n = wcstombs(cfg->chip_number, tmpstr, sizeof(cfg->chip_number));
+    for (int i = n; i < sizeof(cfg->chip_number); i++)
+    {
+        cfg->chip_number[i] = ' ';
+    } 
+}
+
 void chuni_hook_config_load(
         struct chuni_hook_config *cfg,
         const wchar_t *filename)
@@ -58,4 +87,5 @@ void chuni_hook_config_load(
     gfx_config_load(&cfg->gfx, filename);
     chuni_dll_config_load(&cfg->dll, filename);
     slider_config_load(&cfg->slider, filename);
+    led1509306_config_load(&cfg->led1509306, filename);
 }

chunihook/config.h

@@ -9,6 +9,7 @@
 
 #include "chunihook/chuni-dll.h"
 #include "chunihook/slider.h"
+#include "chunihook/led1509306.h"
 
 #include "gfxhook/gfx.h"
 
@@ -21,6 +22,7 @@ struct chuni_hook_config {
     struct gfx_config gfx;
     struct chuni_dll_config dll;
     struct slider_config slider;
+    struct led1509306_config led1509306;
 };
 
 void chuni_dll_config_load(

chunihook/dllmain.c

@@ -9,6 +9,7 @@
 #include "chunihook/config.h"
 #include "chunihook/jvs.h"
 #include "chunihook/slider.h"
+#include "chunihook/led1509306.h"
 
 #include "chuniio/chuniio.h"
 
@@ -96,6 +97,12 @@ static DWORD CALLBACK chuni_pre_startup(void)
         goto fail;
     }
 
+    hr = led1509306_hook_init(&chuni_hook_cfg.led1509306);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
     hr = sg_reader_hook_init(&chuni_hook_cfg.aime, 12, chuni_hook_mod);
 
     if (FAILED(hr)) {

chunihook/jvs.c

@@ -101,13 +101,13 @@ static void chunithm_jvs_read_switches(void *ctx, struct io3_switch_state *out)
     out->p1 = 0x0000;
     out->p2 = 0x0000;
 
-    if (opbtn & 0x01) {
+    if (opbtn & CHUNI_IO_OPBTN_TEST) {
         out->system = 0x80;
     } else {
         out->system = 0x00;
     }
 
-    if (opbtn & 0x02) {
+    if (opbtn & CHUNI_IO_OPBTN_SERVICE) {
         out->p1 |= 0x4000;
     }
 

chunihook/led1509306.c

@@ -0,0 +1,377 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <process.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "board/led1509306-cmd.h"
+#include "board/led1509306-frame.h"
+
+#include "chunihook/led1509306.h"
+
+#include "hook/iobuf.h"
+#include "hook/iohook.h"
+
+#include "hooklib/uart.h"
+
+#include "util/dprintf.h"
+#include "util/dump.h"
+
+static HRESULT led1509306_handle_irp(struct irp *irp);
+static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp);
+
+static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_get_board_info(int board);
+static HRESULT led1509306_req_get_fw_sum(int board);
+static HRESULT led1509306_req_get_protocol_ver(int board);
+static HRESULT led1509306_req_get_board_status(int board);
+static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req);
+
+static char led1509306_board_num[8];
+static char led1509306_chip_num[5];
+static uint8_t led1509306_fw_ver;
+static uint16_t led1509306_fw_sum;
+static uint8_t led1509306_board_adr = 2;
+static uint8_t led1509306_host_adr = 1;
+
+#define led1509306_nboards 2
+
+typedef struct {
+    CRITICAL_SECTION lock;
+    struct uart boarduart;
+    uint8_t written_bytes[520];
+    uint8_t readable_bytes[520];
+    bool enable_response;
+} _led1509306_per_board_vars;
+
+_led1509306_per_board_vars led1509306_per_board_vars[led1509306_nboards];
+
+HRESULT led1509306_hook_init(const struct led1509306_config *cfg)
+{
+    assert(cfg != NULL);
+
+    if (!cfg->enable) {
+        return S_FALSE;
+    }
+    
+    memcpy(led1509306_board_num, cfg->board_number, sizeof(led1509306_board_num));
+    memcpy(led1509306_chip_num, cfg->chip_number, sizeof(led1509306_chip_num));
+    led1509306_fw_ver = cfg->fw_ver;
+    led1509306_fw_sum = cfg->fw_sum;
+    
+    for (int i = 0; i < led1509306_nboards; i++)
+    {
+        _led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
+        
+        InitializeCriticalSection(&v->lock);
+
+        uart_init(&v->boarduart, 10 + i);
+        v->boarduart.written.bytes = v->written_bytes;
+        v->boarduart.written.nbytes = sizeof(v->written_bytes);
+        v->boarduart.readable.bytes = v->readable_bytes;
+        v->boarduart.readable.nbytes = sizeof(v->readable_bytes);
+        
+        v->enable_response = true;
+    }
+
+    return iohook_push_handler(led1509306_handle_irp);
+}
+
+static HRESULT led1509306_handle_irp(struct irp *irp)
+{
+    HRESULT hr;
+
+    assert(irp != NULL);
+    
+    for (int i = 0; i < led1509306_nboards; i++)
+    {
+        _led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
+        struct uart *boarduart = &v->boarduart;
+        
+        if (uart_match_irp(boarduart, irp))
+        {
+            CRITICAL_SECTION lock = v->lock;
+            
+            EnterCriticalSection(&lock);
+            hr = led1509306_handle_irp_locked(i, irp);
+            LeaveCriticalSection(&lock);
+
+            return hr;
+        }
+    }
+    
+    return iohook_invoke_next(irp);
+}
+
+static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp)
+{
+    struct led1509306_req_any req;
+    struct iobuf req_iobuf;
+    HRESULT hr;
+    
+    struct uart *boarduart = &led1509306_per_board_vars[board].boarduart;
+
+    hr = uart_handle_irp(boarduart, irp);
+
+    if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
+        return hr;
+    }
+
+    for (;;) {
+#if 0
+        dprintf("TX Buffer:\n");
+        dump_iobuf(&boarduart->written);
+#endif
+
+        req_iobuf.bytes = (byte*)&req;
+        req_iobuf.nbytes = sizeof(req.hdr) + sizeof(req.cmd) + sizeof(req.payload);
+        req_iobuf.pos = 0;
+
+        hr = led1509306_frame_decode(&req_iobuf, &boarduart->written);
+
+        if (hr != S_OK) {
+            if (FAILED(hr)) {
+                dprintf("Chunithm LED Strip: Deframe error: %x\n", (int) hr);
+            }
+
+            return hr;
+        }
+
+#if 0
+        dprintf("Deframe Buffer:\n");
+        dump_iobuf(&req_iobuf);
+#endif
+
+        hr = led1509306_req_dispatch(board, &req);
+
+        if (FAILED(hr)) {
+            dprintf("Chunithm LED Strip: Processing error: %x\n", (int) hr);
+        }
+    }
+}
+
+static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req)
+{
+    switch (req->cmd) {
+    case LED_15093_06_CMD_RESET:
+        return led1509306_req_reset(board, req);
+
+    case LED_15093_06_CMD_BOARD_INFO:
+        return led1509306_req_get_board_info(board);
+    
+    case LED_15093_06_CMD_FW_SUM:
+        return led1509306_req_get_fw_sum(board);
+    
+    case LED_15093_06_CMD_PROTOCOL_VER:
+        return led1509306_req_get_protocol_ver(board);
+
+    case LED_15093_06_CMD_BOARD_STATUS:
+        return led1509306_req_get_board_status(board);
+
+    case LED_15093_06_CMD_SET_LED:
+        return led1509306_req_set_led(board, req);
+
+    case LED_15093_06_CMD_SET_DISABLE_RESPONSE:
+        return led1509306_req_set_disable_response(board, req);
+
+    case LED_15093_06_CMD_SET_TIMEOUT:
+        return led1509306_req_set_timeout(board, req);
+
+    default:
+        dprintf("Chunithm LED Strip: Unhandled command %02x\n", req->cmd);
+
+        return S_OK;
+    }
+}
+
+static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Reset (board %u, type %02x)\n", board, req->payload[0]);
+    
+    if (req->payload[0] != 0xd9)
+        dprintf("Chunithm LED Strip: Warning -- Unknown reset type %02x\n", req->payload[0]);
+    
+    led1509306_per_board_vars[board].enable_response = true;
+
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_RESET;
+    resp.report = 1;
+
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_board_info(int board)
+{
+    dprintf("Chunithm LED Strip: Get board info (board %u)\n", board);
+    
+    struct led1509306_resp_board_info resp;
+
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = sizeof(resp.data) + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_BOARD_INFO;
+    resp.report = 1;
+
+    memcpy(resp.data.board_num, led1509306_board_num, sizeof(resp.data.board_num));
+    resp.data._0a = 0x0a;
+    memcpy(resp.data.chip_num, led1509306_chip_num, sizeof(resp.data.chip_num));
+    resp.data._ff = 0xff;
+    resp.data.fw_ver = led1509306_fw_ver;
+
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_fw_sum(int board)
+{
+    dprintf("Chunithm LED Strip: Get firmware checksum (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 2 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_FW_SUM;
+    resp.report = 1;
+    
+    resp.data[0] = (led1509306_fw_sum >> 8) & 0xff;
+    resp.data[1] = led1509306_fw_sum & 0xff;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_protocol_ver(int board)
+{
+    dprintf("Chunithm LED Strip: Get protocol version (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_PROTOCOL_VER;
+    resp.report = 1;
+    
+    resp.data[0] = 1;
+    resp.data[1] = 1;
+    resp.data[2] = 4;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_board_status(int board)
+{
+    dprintf("Chunithm LED Strip: Get board status (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 4 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_BOARD_STATUS;
+    resp.report = 1;
+    
+    resp.data[0] = 0;
+    resp.data[1] = 0;
+    resp.data[2] = 0;
+    resp.data[3] = 0;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req)
+{
+    // dprintf("Chunithm LED Strip: Set LED (board %u)\n", board);
+
+    if (!led1509306_per_board_vars[board].enable_response)
+        return S_OK;
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_LED;
+    resp.report = 1;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Disable LED responses (board %u)\n", board);
+    
+    led1509306_per_board_vars[board].enable_response = !req->payload[0];
+
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 1 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_DISABLE_RESPONSE;
+    resp.report = 1;
+    
+    resp.data[0] = req->payload[0];
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Set timeout (board %u)\n", board);
+    
+    // not actually implemented, but respond correctly anyway
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 2 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_TIMEOUT;
+    resp.report = 1;
+    
+    resp.data[0] = req->payload[0];
+    resp.data[1] = req->payload[1];
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}

chunihook/led1509306.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stdbool.h>
+
+struct led1509306_config {
+    bool enable;
+    bool cvt_port;
+    char board_number[8];
+    char chip_number[5];
+    uint8_t fw_ver;
+    uint16_t fw_sum;
+};
+
+HRESULT led1509306_hook_init(const struct led1509306_config *cfg);

chunihook/meson.build

@@ -30,5 +30,7 @@ shared_library(
         'jvs.h',
         'slider.c',
         'slider.h',
+        'led1509306.c',
+        'led1509306.h',
     ],
 )

chuniio/chuniio.c

@@ -3,10 +3,13 @@
 #include <process.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <stdio.h>
 
 #include "chuniio/chuniio.h"
 #include "chuniio/config.h"
 
+#include "util/dprintf.h"
+
 static unsigned int __stdcall chuni_io_slider_thread_proc(void *ctx);
 
 static bool chuni_io_coin;
@@ -15,6 +18,7 @@ static uint8_t chuni_io_hand_pos;
 static HANDLE chuni_io_slider_thread;
 static bool chuni_io_slider_stop_flag;
 static struct chuni_io_config chuni_io_cfg;
+static HANDLE chuni_io_slider_led_port;
 
 uint16_t chuni_io_get_api_version(void)
 {
@@ -50,27 +54,48 @@ void chuni_io_jvs_poll(uint8_t *opbtn, uint8_t *beams)
 {
     size_t i;
 
-    if (GetAsyncKeyState(chuni_io_cfg.vk_test)) {
+    if (GetAsyncKeyState(chuni_io_cfg.vk_test) & 0x8000) {
-        *opbtn |= 0x01; /* Test */
+        *opbtn |= CHUNI_IO_OPBTN_TEST;
     }
 
-    if (GetAsyncKeyState(chuni_io_cfg.vk_service)) {
+    if (GetAsyncKeyState(chuni_io_cfg.vk_service) & 0x8000) {
-        *opbtn |= 0x02; /* Service */
+        *opbtn |= CHUNI_IO_OPBTN_SERVICE;
     }
 
-    if (GetAsyncKeyState(chuni_io_cfg.vk_ir)) {
+    if (GetAsyncKeyState(chuni_io_cfg.vk_coin) & 0x8000) {
-        if (chuni_io_hand_pos < 6) {
+        if (!chuni_io_coin) {
-            chuni_io_hand_pos++;
+            chuni_io_coin = true;
+            *opbtn |= CHUNI_IO_OPBTN_COIN;
         }
     } else {
-        if (chuni_io_hand_pos > 0) {
+        chuni_io_coin = false;
-            chuni_io_hand_pos--;
-        }
     }
 
-    for (i = 0 ; i < 6 ; i++) {
+    if (chuni_io_cfg.vk_ir_emu) {
-        if (chuni_io_hand_pos > i) {
+        // Use emulated AIR
-            *beams |= (1 << i);
+        if (GetAsyncKeyState(chuni_io_cfg.vk_ir_emu)) {
+            if (chuni_io_hand_pos < 6) {
+                chuni_io_hand_pos++;
+            }
+        } else {
+            if (chuni_io_hand_pos > 0) {
+                chuni_io_hand_pos--;
+            }
+        }
+
+        for (i = 0 ; i < 6 ; i++) {
+            if (chuni_io_hand_pos > i) {
+                *beams |= (1 << i);
+            }
+        }
+    } else {
+        // Use actual AIR
+        // IR format is beams[5:0] = {b5,b6,b3,b4,b1,b2};
+        for (i = 0 ; i < 3 ; i++) {
+            if (GetAsyncKeyState(chuni_io_cfg.vk_ir[i*2]) & 0x8000)
+                *beams |= (1 << (i*2+1));
+            if (GetAsyncKeyState(chuni_io_cfg.vk_ir[i*2+1]) & 0x8000)
+                *beams |= (1 << (i*2));
         }
     }
 }
@@ -82,6 +107,8 @@ HRESULT chuni_io_slider_init(void)
 
 void chuni_io_slider_start(chuni_io_slider_callback_t callback)
 {
+    BOOL status;
+
     if (chuni_io_slider_thread != NULL) {
         return;
     }
@@ -93,6 +120,39 @@ void chuni_io_slider_start(chuni_io_slider_callback_t callback)
             callback,
             0,
             NULL);
+
+    chuni_io_slider_led_port = CreateFileW(chuni_io_cfg.led_com,
+            GENERIC_READ | GENERIC_WRITE,
+            0,
+            NULL,
+            OPEN_EXISTING,
+            0,
+            NULL);
+    
+    if (chuni_io_slider_led_port == INVALID_HANDLE_VALUE)
+        dprintf("Chunithm LEDs: Failed to open COM port (Attempted on %S)\n", chuni_io_cfg.led_com);
+    else
+        dprintf("Chunithm LEDs: COM Port Success!\n");
+            
+    DCB dcb_serial_params = { 0 };
+    dcb_serial_params.DCBlength = sizeof(dcb_serial_params);
+    status = GetCommState(chuni_io_slider_led_port, &dcb_serial_params);
+    
+    dcb_serial_params.BaudRate = CBR_115200;  // Setting BaudRate = 115200
+    dcb_serial_params.ByteSize = 8;         // Setting ByteSize = 8
+    dcb_serial_params.StopBits = ONESTOPBIT;// Setting StopBits = 1
+    dcb_serial_params.Parity   = NOPARITY;  // Setting Parity = None
+    SetCommState(chuni_io_slider_led_port, &dcb_serial_params);
+    
+    COMMTIMEOUTS timeouts = { 0 };
+    timeouts.ReadIntervalTimeout         = 50; // in milliseconds
+    timeouts.ReadTotalTimeoutConstant    = 50; // in milliseconds
+    timeouts.ReadTotalTimeoutMultiplier  = 10; // in milliseconds
+    timeouts.WriteTotalTimeoutConstant   = 50; // in milliseconds
+    timeouts.WriteTotalTimeoutMultiplier = 10; // in milliseconds
+    
+    SetCommTimeouts(chuni_io_slider_led_port, &timeouts);
+
 }
 
 void chuni_io_slider_stop(void)
@@ -107,10 +167,34 @@ void chuni_io_slider_stop(void)
     CloseHandle(chuni_io_slider_thread);
     chuni_io_slider_thread = NULL;
     chuni_io_slider_stop_flag = false;
+
+    dprintf("Chunithm LEDs: Closing COM port\n");
+    CloseHandle(chuni_io_slider_led_port);
 }
 
 void chuni_io_slider_set_leds(const uint8_t *rgb)
 {
+    if (chuni_io_slider_led_port != INVALID_HANDLE_VALUE)
+    {
+        char led_buffer[100];
+        DWORD bytes_to_write;         // No of bytes to write into the port
+        DWORD bytes_written = 0;     // No of bytes written to the port
+        bytes_to_write = sizeof(led_buffer);
+        BOOL status;
+        
+        led_buffer[0] = 0xAA;
+        led_buffer[1] = 0xAA;
+        memcpy(led_buffer+2, rgb, sizeof(uint8_t) * 96);
+        led_buffer[98] = 0xDD;
+        led_buffer[99] = 0xDD;
+        
+        status = WriteFile(chuni_io_slider_led_port,        // Handle to the Serial port
+                           led_buffer,     // Data to be written to the port
+                           bytes_to_write,  //No of bytes to write
+                           &bytes_written, //Bytes written
+                           NULL);
+    }
+
 }
 
 static unsigned int __stdcall chuni_io_slider_thread_proc(void *ctx)

chuniio/chuniio.h

@@ -15,6 +15,12 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+enum {
+    CHUNI_IO_OPBTN_TEST = 0x01,
+    CHUNI_IO_OPBTN_SERVICE = 0x02,
+    CHUNI_IO_OPBTN_COIN = 0x04,
+};
+
 /* Get the version of the Chunithm IO API that this DLL supports. This
    function should return a positive 16-bit integer, where the high byte is
    the major version and the low byte is the minor version (as defined by the

chuniio/config.c

@@ -3,6 +3,7 @@
 #include <assert.h>
 #include <stddef.h>
 #include <stdio.h>
+#include <string.h>
 
 #include "chuniio/config.h"
 
@@ -17,20 +18,35 @@ static const int chuni_io_default_cells[] = {
     'S', 'S', 'S', 'S',
 };
 
+static const int chuni_io_default_ir[] = {
+    '4', '5', '6', '7', '8', '9'
+};
+
 void chuni_io_config_load(
         struct chuni_io_config *cfg,
         const wchar_t *filename)
 {
     wchar_t key[16];
     int i;
+    wchar_t port_input[6];
 
     assert(cfg != NULL);
     assert(filename != NULL);
 
+    // Technically it's io4 but leave this for compatibility with old configs.
     cfg->vk_test = GetPrivateProfileIntW(L"io3", L"test", '1', filename);
     cfg->vk_service = GetPrivateProfileIntW(L"io3", L"service", '2', filename);
     cfg->vk_coin = GetPrivateProfileIntW(L"io3", L"coin", '3', filename);
-    cfg->vk_ir = GetPrivateProfileIntW(L"io3", L"ir", VK_SPACE, filename);
+    cfg->vk_ir_emu = GetPrivateProfileIntW(L"io3", L"ir", VK_SPACE, filename);
+
+    for (i = 0 ; i < 6 ; i++) {
+        swprintf_s(key, _countof(key), L"ir%i", i + 1);
+        cfg->vk_ir[i] = GetPrivateProfileIntW(
+                L"ir",
+                key,
+                chuni_io_default_ir[i],
+                filename);
+    }
 
     for (i = 0 ; i < 32 ; i++) {
         swprintf_s(key, _countof(key), L"cell%i", i + 1);
@@ -40,4 +56,8 @@ void chuni_io_config_load(
                 chuni_io_default_cells[i],
                 filename);
     }
+
+    GetPrivateProfileStringW(L"slider", L"ledport", L"COM2", port_input, 6, filename);
+    wcsncpy(cfg->led_com, L"\\\\.\\", 4);
+    wcsncat_s(cfg->led_com, 11, port_input, 6);
 }

chuniio/config.h

@@ -7,8 +7,10 @@ struct chuni_io_config {
     uint8_t vk_test;
     uint8_t vk_service;
     uint8_t vk_coin;
-    uint8_t vk_ir;
+    uint8_t vk_ir_emu;
+    uint8_t vk_ir[6];
     uint8_t vk_cell[32];
+    wchar_t led_com[12];
 };
 
 void chuni_io_config_load(

chusanhook/chuni-dll.c

@@ -0,0 +1,118 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "chusanhook/chuni-dll.h"
+
+#include "util/dll-bind.h"
+#include "util/dprintf.h"
+
+const struct dll_bind_sym chuni_dll_syms[] = {
+    {
+        .sym = "chuni_io_jvs_init",
+        .off = offsetof(struct chuni_dll, jvs_init),
+    }, {
+        .sym = "chuni_io_jvs_poll",
+        .off = offsetof(struct chuni_dll, jvs_poll),
+    }, {
+        .sym = "chuni_io_jvs_read_coin_counter",
+        .off = offsetof(struct chuni_dll, jvs_read_coin_counter),
+    }, {
+        .sym = "chuni_io_slider_init",
+        .off = offsetof(struct chuni_dll, slider_init),
+    }, {
+        .sym = "chuni_io_slider_start",
+        .off = offsetof(struct chuni_dll, slider_start),
+    }, {
+        .sym = "chuni_io_slider_stop",
+        .off = offsetof(struct chuni_dll, slider_stop),
+    }, {
+        .sym = "chuni_io_slider_set_leds",
+        .off = offsetof(struct chuni_dll, slider_set_leds),
+    }
+};
+
+struct chuni_dll chuni_dll;
+
+// Copypasta DLL binding and diagnostic message boilerplate.
+// Not much of this lends itself to being easily factored out. Also there
+// will be a lot of API-specific branching code here eventually as new API
+// versions get defined, so even though these functions all look the same
+// now this won't remain the case forever.
+
+HRESULT chuni_dll_init(const struct chuni_dll_config *cfg, HINSTANCE self)
+{
+    uint16_t (*get_api_version)(void);
+    const struct dll_bind_sym *sym;
+    HINSTANCE owned;
+    HINSTANCE src;
+    HRESULT hr;
+
+    assert(cfg != NULL);
+    assert(self != NULL);
+
+    if (cfg->path[0] != L'\0') {
+        owned = LoadLibraryW(cfg->path);
+
+        if (owned == NULL) {
+            hr = HRESULT_FROM_WIN32(GetLastError());
+            dprintf("Chunithm IO: Failed to load IO DLL: %lx: %S\n",
+                    hr,
+                    cfg->path);
+
+            goto end;
+        }
+
+        dprintf("Chunithm IO: Using custom IO DLL: %S\n", cfg->path);
+        src = owned;
+    } else {
+        owned = NULL;
+        src = self;
+    }
+
+    get_api_version = (void *) GetProcAddress(src, "chuni_io_get_api_version");
+
+    if (get_api_version != NULL) {
+        chuni_dll.api_version = get_api_version();
+    } else {
+        chuni_dll.api_version = 0x0100;
+        dprintf("Custom IO DLL does not expose chuni_io_get_api_version, "
+                "assuming API version 1.0.\n"
+                "Please ask the developer to update their DLL.\n");
+    }
+
+    if (chuni_dll.api_version >= 0x0200) {
+        hr = E_NOTIMPL;
+        dprintf("Chunithm IO: Custom IO DLL implements an unsupported "
+                "API version (%#04x). Please update Segatools.\n",
+                chuni_dll.api_version);
+
+        goto end;
+    }
+
+    sym = chuni_dll_syms;
+    hr = dll_bind(&chuni_dll, src, &sym, _countof(chuni_dll_syms));
+
+    if (FAILED(hr)) {
+        if (src != self) {
+            dprintf("Chunithm IO: Custom IO DLL does not provide function "
+                    "\"%s\". Please contact your IO DLL's developer for "
+                    "further assistance.\n",
+                    sym->sym);
+
+            goto end;
+        } else {
+            dprintf("Internal error: could not reflect \"%s\"\n", sym->sym);
+        }
+    }
+
+    owned = NULL;
+
+end:
+    if (owned != NULL) {
+        FreeLibrary(owned);
+    }
+
+    return hr;
+}

chusanhook/chuni-dll.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <windows.h>
+
+#include "chuniio/chuniio.h"
+
+struct chuni_dll {
+    uint16_t api_version;
+    HRESULT (*jvs_init)(void);
+    void (*jvs_poll)(uint8_t *opbtn, uint8_t *beams);
+    void (*jvs_read_coin_counter)(uint16_t *total);
+    HRESULT (*slider_init)(void);
+    void (*slider_start)(chuni_io_slider_callback_t callback);
+    void (*slider_stop)(void);
+    void (*slider_set_leds)(const uint8_t *rgb);
+};
+
+struct chuni_dll_config {
+    wchar_t path[MAX_PATH];
+};
+
+extern struct chuni_dll chuni_dll;
+
+HRESULT chuni_dll_init(const struct chuni_dll_config *cfg, HINSTANCE self);

chusanhook/chusanhook.def

@@ -0,0 +1,22 @@
+LIBRARY chusanhook
+
+EXPORTS
+    Direct3DCreate9
+    aime_io_get_api_version
+    aime_io_init
+    aime_io_led_set_color
+    aime_io_nfc_get_aime_id
+    aime_io_nfc_get_felica_id
+    aime_io_nfc_poll
+    amDllVideoClose @2
+    amDllVideoGetVBiosVersion @4
+    amDllVideoOpen @1
+    amDllVideoSetResolution @3
+    chuni_io_get_api_version
+    chuni_io_jvs_init
+    chuni_io_jvs_poll
+    chuni_io_jvs_read_coin_counter
+    chuni_io_slider_init
+    chuni_io_slider_set_leds
+    chuni_io_slider_start
+    chuni_io_slider_stop

chusanhook/config.c

@@ -0,0 +1,122 @@
+#include <assert.h>
+#include <stddef.h>
+
+#include "board/config.h"
+
+#include "hooklib/config.h"
+#include "hooklib/dvd.h"
+
+#include "gfxhook/config.h"
+
+#include "platform/config.h"
+
+#include "chusanhook/config.h"
+
+// Check windows
+#if _WIN32 || _WIN64
+   #if _WIN64
+     #define ENV64BIT
+  #else
+    #define ENV32BIT
+  #endif
+#endif
+
+// Check GCC
+#if __GNUC__
+  #if __x86_64__ || __ppc64__
+    #define ENV64BIT
+  #else
+    #define ENV32BIT
+  #endif
+#endif
+
+void chuni_dll_config_load(
+        struct chuni_dll_config *cfg,
+        const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    // Workaround for x64/x86 external IO dlls
+    // path32 for 32bit, path64 for 64bit
+    // for else.. is that possible? idk
+
+    #if defined(ENV32BIT)
+        GetPrivateProfileStringW(
+                L"chuniio",
+                L"path32",
+                L"",
+                cfg->path,
+                _countof(cfg->path),
+                filename);
+    #elif defined(ENV64BIT)
+        GetPrivateProfileStringW(
+                L"chuniio",
+                L"path64",
+                L"",
+                cfg->path,
+                _countof(cfg->path),
+                filename);
+    #else
+        #error "Unknown environment"
+    #endif
+    
+}
+
+void slider_config_load(struct slider_config *cfg, const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    cfg->enable = GetPrivateProfileIntW(L"slider", L"enable", 1, filename);
+}
+
+void led1509306_config_load(struct led1509306_config *cfg, const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    wchar_t tmpstr[16];
+    
+    memset(cfg->board_number, ' ', sizeof(cfg->board_number));
+    memset(cfg->chip_number, ' ', sizeof(cfg->chip_number));
+    
+    cfg->enable = GetPrivateProfileIntW(L"ledstrip", L"enable", 1, filename);
+    cfg->cvt_port = GetPrivateProfileIntW(L"ledstrip", L"cvt_port", 0, filename);
+    cfg->fw_ver = GetPrivateProfileIntW(L"ledstrip", L"fw_ver", 0x90, filename);
+    cfg->fw_sum = GetPrivateProfileIntW(L"ledstrip", L"fw_sum", 0xadf7, filename);
+    
+    GetPrivateProfileStringW(L"ledstrip", L"board_number", L"15093-06", tmpstr, _countof(tmpstr), filename);
+    size_t n = wcstombs(cfg->board_number, tmpstr, sizeof(cfg->board_number));
+    for (int i = n; i < sizeof(cfg->board_number); i++)
+    {
+        cfg->board_number[i] = ' ';
+    }
+    
+    GetPrivateProfileStringW(L"ledstrip", L"chip_number", L"6710 ", tmpstr, _countof(tmpstr), filename);
+    n = wcstombs(cfg->chip_number, tmpstr, sizeof(cfg->chip_number));
+    for (int i = n; i < sizeof(cfg->chip_number); i++)
+    {
+        cfg->chip_number[i] = ' ';
+    } 
+}
+
+
+void chusan_hook_config_load(
+        struct chusan_hook_config *cfg,
+        const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    memset(cfg, 0, sizeof(*cfg));
+
+    platform_config_load(&cfg->platform, filename);
+    aime_config_load(&cfg->aime, filename);
+    dvd_config_load(&cfg->dvd, filename);
+    io4_config_load(&cfg->io4, filename);
+    gfx_config_load(&cfg->gfx, filename);
+    chuni_dll_config_load(&cfg->dll, filename);
+    slider_config_load(&cfg->slider, filename);
+    led1509306_config_load(&cfg->led1509306, filename);
+}

chusanhook/config.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <stddef.h>
+
+#include "board/config.h"
+
+#include "hooklib/dvd.h"
+
+#include "gfxhook/config.h"
+
+#include "platform/config.h"
+
+#include "chusanhook/chuni-dll.h"
+#include "chusanhook/slider.h"
+#include "chunihook/led1509306.h"
+
+struct chusan_hook_config {
+    struct platform_config platform;
+    struct aime_config aime;
+    struct dvd_config dvd;
+    struct io4_config io4;
+    struct gfx_config gfx;
+    struct chuni_dll_config dll;
+    struct slider_config slider;
+    struct led1509306_config led1509306;
+};
+
+void chuni_dll_config_load(
+        struct chuni_dll_config *cfg,
+        const wchar_t *filename);
+void slider_config_load(struct slider_config *cfg, const wchar_t *filename);
+void chusan_hook_config_load(
+        struct chusan_hook_config *cfg,
+        const wchar_t *filename);

chusanhook/dllmain.c

@@ -0,0 +1,147 @@
+#include <windows.h>
+
+#include <stddef.h>
+#include <stdlib.h>
+
+#include "amex/amex.h"
+
+#include "board/sg-reader.h"
+#include "board/vfd.h"
+
+#include "chusanhook/config.h"
+#include "chusanhook/io4.h"
+#include "chusanhook/slider.h"
+#include "chunihook/led1509306.h"
+
+#include "chuniio/chuniio.h"
+
+#include "hook/process.h"
+
+#include "gfxhook/d3d9.h"
+#include "gfxhook/gfx.h"
+
+#include "hooklib/serial.h"
+#include "hooklib/spike.h"
+
+#include "platform/platform.h"
+
+#include "util/dprintf.h"
+
+static HMODULE chusan_hook_mod;
+static process_entry_t chusan_startup;
+static struct chusan_hook_config chusan_hook_cfg;
+
+static DWORD CALLBACK chusan_pre_startup(void)
+{
+    HMODULE d3dc;
+    HMODULE dbghelp;
+    HRESULT hr;
+
+    dprintf("--- Begin chusan_pre_startup ---\n");
+
+    /* Pin the D3D shader compiler. This makes startup much faster. */
+
+    d3dc = LoadLibraryW(L"D3DCompiler_43.dll");
+
+    if (d3dc != NULL) {
+        dprintf("Pinned shader compiler, hMod=%p\n", d3dc);
+    } else {
+        dprintf("Failed to load shader compiler!\n");
+    }
+
+    /* Pin dbghelp so the path hooks apply to it. */
+
+    dbghelp = LoadLibraryW(L"dbghelp.dll");
+
+    if (dbghelp != NULL) {
+        dprintf("Pinned debug helper library, hMod=%p\n", dbghelp);
+    } else {
+        dprintf("Failed to load debug helper library!\n");
+    }
+
+    /* Config load */
+
+    chusan_hook_config_load(&chusan_hook_cfg, L".\\segatools.ini");
+
+    /* Hook Win32 APIs */
+    
+    dvd_hook_init(&chusan_hook_cfg.dvd, chusan_hook_mod);
+    gfx_hook_init(&chusan_hook_cfg.gfx);
+    gfx_d3d9_hook_init(&chusan_hook_cfg.gfx, chusan_hook_mod);
+    serial_hook_init();
+
+    /* Initialize emulation hooks */
+
+    hr = platform_hook_init(
+        &chusan_hook_cfg.platform,
+        "SDHD",
+        "ACA2",
+        chusan_hook_mod);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+    hr = chuni_dll_init(&chusan_hook_cfg.dll, chusan_hook_mod);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+    hr = chusan_io4_hook_init(&chusan_hook_cfg.io4);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+    hr = slider_hook_init(&chusan_hook_cfg.slider);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+    hr = led1509306_hook_init(&chusan_hook_cfg.led1509306);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+
+    hr = sg_reader_hook_init(&chusan_hook_cfg.aime, 4, chusan_hook_mod);
+
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
+    /* Initialize debug helpers */
+
+    spike_hook_init(L".\\segatools.ini");
+
+    dprintf("---  End  chusan_pre_startup ---\n");
+
+    /* Jump to EXE start address */
+
+    return chusan_startup();
+
+fail:
+    ExitProcess(EXIT_FAILURE);
+}
+
+BOOL WINAPI DllMain(HMODULE mod, DWORD cause, void *ctx)
+{
+    HRESULT hr;
+
+    if (cause != DLL_PROCESS_ATTACH) {
+        return TRUE;
+    }
+
+    chusan_hook_mod = mod;
+
+    hr = process_hijack_startup(chusan_pre_startup, &chusan_startup);
+
+    if (!SUCCEEDED(hr)) {
+        dprintf("Failed to hijack process startup: %x\n", (int) hr);
+    }
+
+    return SUCCEEDED(hr);
+}

chusanhook/io4.c

@@ -0,0 +1,107 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "board/io4.h"
+
+#include "chusanhook/chuni-dll.h"
+#include "util/dprintf.h"
+
+struct chunithm_jvs_ir_mask {
+    uint16_t p1;
+    uint16_t p2;
+};
+
+// Incorrect IR beam mappings retained for backward compatibility
+static const struct chunithm_jvs_ir_mask chunithm_jvs_ir_masks_v1[] = {
+    { 0, 1 << 13 },
+    { 1 << 13, 0 },
+    { 0, 1 << 12 },
+    { 1 << 12, 0 },
+    { 0, 1 << 11 },
+    { 1 << 11, 0 },
+};
+
+static const struct chunithm_jvs_ir_mask chunithm_jvs_ir_masks[] = {
+    { 1 << 13, 0 },
+    { 0, 1 << 13 },
+    { 1 << 12, 0 },
+    { 0, 1 << 12 },
+    { 1 << 11, 0 },
+    { 0, 1 << 11 },
+};
+
+static HRESULT chusan_io4_poll(void* ctx, struct io4_state* state);
+static uint16_t coins;
+
+static const struct io4_ops chusan_io4_ops = {
+    .poll = chusan_io4_poll,
+};
+
+HRESULT chusan_io4_hook_init(const struct io4_config* cfg)
+{
+    HRESULT hr;
+
+    assert(chuni_dll.jvs_init != NULL);
+
+    dprintf("USB I/O: Starting IO backend\n");
+    hr = chuni_dll.jvs_init();
+
+    if (FAILED(hr)) {
+        dprintf("USB I/O: Backend error, I/O disconnected: %x\n", (int)hr);
+
+        return hr;
+    }
+
+    io4_hook_init(cfg, &chusan_io4_ops, NULL);
+
+    return S_OK;
+}
+
+static HRESULT chusan_io4_poll(void* ctx, struct io4_state* state)
+{
+    const struct chunithm_jvs_ir_mask *masks;
+    uint8_t opbtn;
+    uint8_t beams;
+    size_t i;
+
+    memset(state, 0, sizeof(*state));
+
+    opbtn = 0;
+    beams = 0;
+
+    chuni_dll.jvs_poll(&opbtn, &beams);
+
+    if (chuni_dll.api_version >= 0x0101) {
+        // Use correct mapping
+        masks = chunithm_jvs_ir_masks;
+    } else {
+        // Use backwards-compatible incorrect mapping
+        masks = chunithm_jvs_ir_masks_v1;
+    }
+
+    if (opbtn & CHUNI_IO_OPBTN_TEST) {
+        state->buttons[0] |= IO4_BUTTON_TEST;
+    }
+
+    if (opbtn & CHUNI_IO_OPBTN_SERVICE) {
+        state->buttons[0] |= IO4_BUTTON_SERVICE;
+    }
+
+    if (opbtn & CHUNI_IO_OPBTN_COIN) {
+        coins++;
+    }
+    state->chutes[0] = coins << 8;
+
+    for (i = 0; i < 6; i++) {
+        /* Beam "press" is active-low hence the ~ */
+        if (~beams & (1 << i)) {
+            state->buttons[0] |= masks[i].p1;
+            state->buttons[1] |= masks[i].p2;
+        }
+    }
+
+    return S_OK;
+}

chusanhook/io4.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <windows.h>
+
+HRESULT chusan_io4_hook_init(const struct io4_config *cfg);

chusanhook/led1509306.c

@@ -0,0 +1,389 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <process.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "board/led1509306-cmd.h"
+#include "board/led1509306-frame.h"
+
+#include "chunihook/led1509306.h"
+
+#include "hook/iobuf.h"
+#include "hook/iohook.h"
+
+#include "hooklib/uart.h"
+
+#include "util/dprintf.h"
+#include "util/dump.h"
+
+static HRESULT led1509306_handle_irp(struct irp *irp);
+static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp);
+
+static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_get_board_info(int board);
+static HRESULT led1509306_req_get_fw_sum(int board);
+static HRESULT led1509306_req_get_protocol_ver(int board);
+static HRESULT led1509306_req_get_board_status(int board);
+static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req);
+static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req);
+
+static char led1509306_board_num[8];
+static char led1509306_chip_num[5];
+static uint8_t led1509306_fw_ver;
+static uint16_t led1509306_fw_sum;
+static uint8_t led1509306_board_adr = 2;
+static uint8_t led1509306_host_adr = 1;
+
+#define led1509306_nboards 2
+
+typedef struct {
+    CRITICAL_SECTION lock;
+    struct uart boarduart;
+    uint8_t written_bytes[520];
+    uint8_t readable_bytes[520];
+    bool enable_response;
+} _led1509306_per_board_vars;
+
+_led1509306_per_board_vars led1509306_per_board_vars[led1509306_nboards];
+
+HRESULT led1509306_hook_init(const struct led1509306_config *cfg)
+{
+    assert(cfg != NULL);
+
+    if (!cfg->enable) {
+        return S_FALSE;
+    }
+    
+    memcpy(led1509306_board_num, cfg->board_number, sizeof(led1509306_board_num));
+    memcpy(led1509306_chip_num, cfg->chip_number, sizeof(led1509306_chip_num));
+    led1509306_fw_ver = cfg->fw_ver;
+    led1509306_fw_sum = cfg->fw_sum;
+    
+    int com_ports[2];
+
+    if (!cfg->cvt_port) {
+        // SP mode: COM20, COM21
+        com_ports[0] = 20;
+        com_ports[1] = 21;
+    } else {
+        // CVT mode: COM3, COM23
+        com_ports[0] = 2;
+        com_ports[1] = 3;
+    }
+
+    for (int i = 0; i < led1509306_nboards; i++)
+    {
+        _led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
+        
+        InitializeCriticalSection(&v->lock);
+
+        uart_init(&v->boarduart, com_ports[i]);
+        v->boarduart.written.bytes = v->written_bytes;
+        v->boarduart.written.nbytes = sizeof(v->written_bytes);
+        v->boarduart.readable.bytes = v->readable_bytes;
+        v->boarduart.readable.nbytes = sizeof(v->readable_bytes);
+        
+        v->enable_response = true;
+    }
+
+    return iohook_push_handler(led1509306_handle_irp);
+}
+
+static HRESULT led1509306_handle_irp(struct irp *irp)
+{
+    HRESULT hr;
+
+    assert(irp != NULL);
+    
+    for (int i = 0; i < led1509306_nboards; i++)
+    {
+        _led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
+        struct uart *boarduart = &v->boarduart;
+        
+        if (uart_match_irp(boarduart, irp))
+        {
+            CRITICAL_SECTION lock = v->lock;
+            
+            EnterCriticalSection(&lock);
+            hr = led1509306_handle_irp_locked(i, irp);
+            LeaveCriticalSection(&lock);
+
+            return hr;
+        }
+    }
+    
+    return iohook_invoke_next(irp);
+}
+
+static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp)
+{
+    struct led1509306_req_any req;
+    struct iobuf req_iobuf;
+    HRESULT hr;
+    
+    struct uart *boarduart = &led1509306_per_board_vars[board].boarduart;
+
+    hr = uart_handle_irp(boarduart, irp);
+
+    if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
+        return hr;
+    }
+
+    for (;;) {
+#if 0
+        dprintf("TX Buffer:\n");
+        dump_iobuf(&boarduart->written);
+#endif
+
+        req_iobuf.bytes = (byte*)&req;
+        req_iobuf.nbytes = sizeof(req.hdr) + sizeof(req.cmd) + sizeof(req.payload);
+        req_iobuf.pos = 0;
+
+        hr = led1509306_frame_decode(&req_iobuf, &boarduart->written);
+
+        if (hr != S_OK) {
+            if (FAILED(hr)) {
+                dprintf("Chunithm LED Strip: Deframe error: %x\n", (int) hr);
+            }
+
+            return hr;
+        }
+
+#if 0
+        dprintf("Deframe Buffer:\n");
+        dump_iobuf(&req_iobuf);
+#endif
+
+        hr = led1509306_req_dispatch(board, &req);
+
+        if (FAILED(hr)) {
+            dprintf("Chunithm LED Strip: Processing error: %x\n", (int) hr);
+        }
+    }
+}
+
+static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req)
+{
+    switch (req->cmd) {
+    case LED_15093_06_CMD_RESET:
+        return led1509306_req_reset(board, req);
+
+    case LED_15093_06_CMD_BOARD_INFO:
+        return led1509306_req_get_board_info(board);
+    
+    case LED_15093_06_CMD_FW_SUM:
+        return led1509306_req_get_fw_sum(board);
+    
+    case LED_15093_06_CMD_PROTOCOL_VER:
+        return led1509306_req_get_protocol_ver(board);
+
+    case LED_15093_06_CMD_BOARD_STATUS:
+        return led1509306_req_get_board_status(board);
+
+    case LED_15093_06_CMD_SET_LED:
+        return led1509306_req_set_led(board, req);
+
+    case LED_15093_06_CMD_SET_DISABLE_RESPONSE:
+        return led1509306_req_set_disable_response(board, req);
+
+    case LED_15093_06_CMD_SET_TIMEOUT:
+        return led1509306_req_set_timeout(board, req);
+
+    default:
+        dprintf("Chunithm LED Strip: Unhandled command %02x\n", req->cmd);
+
+        return S_OK;
+    }
+}
+
+static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Reset (board %u, type %02x)\n", board, req->payload[0]);
+    
+    if (req->payload[0] != 0xd9)
+        dprintf("Chunithm LED Strip: Warning -- Unknown reset type %02x\n", req->payload[0]);
+    
+    led1509306_per_board_vars[board].enable_response = true;
+
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_RESET;
+    resp.report = 1;
+
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_board_info(int board)
+{
+    dprintf("Chunithm LED Strip: Get board info (board %u)\n", board);
+    
+    struct led1509306_resp_board_info resp;
+
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = sizeof(resp.data) + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_BOARD_INFO;
+    resp.report = 1;
+
+    memcpy(resp.data.board_num, led1509306_board_num, sizeof(resp.data.board_num));
+    resp.data._0a = 0x0a;
+    memcpy(resp.data.chip_num, led1509306_chip_num, sizeof(resp.data.chip_num));
+    resp.data._ff = 0xff;
+    resp.data.fw_ver = led1509306_fw_ver;
+
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_fw_sum(int board)
+{
+    dprintf("Chunithm LED Strip: Get firmware checksum (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 2 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_FW_SUM;
+    resp.report = 1;
+    
+    resp.data[0] = (led1509306_fw_sum >> 8) & 0xff;
+    resp.data[1] = led1509306_fw_sum & 0xff;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_protocol_ver(int board)
+{
+    dprintf("Chunithm LED Strip: Get protocol version (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_PROTOCOL_VER;
+    resp.report = 1;
+    
+    resp.data[0] = 1;
+    resp.data[1] = 1;
+    resp.data[2] = 4;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_get_board_status(int board)
+{
+    dprintf("Chunithm LED Strip: Get board status (board %u)\n", board);
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 4 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_BOARD_STATUS;
+    resp.report = 1;
+    
+    resp.data[0] = 0;
+    resp.data[1] = 0;
+    resp.data[2] = 0;
+    resp.data[3] = 0;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req)
+{
+    // dprintf("Chunithm LED Strip: Set LED (board %u)\n", board);
+
+    if (!led1509306_per_board_vars[board].enable_response)
+        return S_OK;
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_LED;
+    resp.report = 1;
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Disable LED responses (board %u)\n", board);
+    
+    led1509306_per_board_vars[board].enable_response = !req->payload[0];
+
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 1 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_DISABLE_RESPONSE;
+    resp.report = 1;
+    
+    resp.data[0] = req->payload[0];
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}
+
+static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req)
+{
+    dprintf("Chunithm LED Strip: Set timeout (board %u)\n", board);
+    
+    // not actually implemented, but respond correctly anyway
+    
+    struct led1509306_resp_any resp;
+    
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = LED_15093_06_FRAME_SYNC;
+    resp.hdr.dest_adr = led1509306_host_adr;
+    resp.hdr.src_adr = led1509306_board_adr;
+    resp.hdr.nbytes = 2 + 3;
+    
+    resp.status = 1;
+    resp.cmd = LED_15093_06_CMD_SET_TIMEOUT;
+    resp.report = 1;
+    
+    resp.data[0] = req->payload[0];
+    resp.data[1] = req->payload[1];
+    
+    return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
+}

chusanhook/led1509306.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stdbool.h>
+
+struct led1509306_config {
+    bool enable;
+    char board_number[8];
+    char chip_number[5];
+    uint8_t fw_ver;
+    uint16_t fw_sum;
+};
+
+HRESULT led1509306_hook_init(const struct led1509306_config *cfg);

chusanhook/meson.build

@@ -0,0 +1,34 @@
+shared_library(
+    'chusanhook',
+    name_prefix : '',
+    include_directories : inc,
+    implicit_include_directories : false,
+    vs_module_defs : 'chusanhook.def',
+    c_pch : '../precompiled.h',
+    dependencies : [
+        capnhook.get_variable('hook_dep'),
+        capnhook.get_variable('hooklib_dep'),
+    ],
+    link_with : [
+        aimeio_lib,
+        board_lib,
+        chuniio_lib,
+        gfxhook_lib,
+        hooklib_lib,
+        platform_lib,
+        util_lib,
+    ],
+    sources : [
+        'chuni-dll.c',
+        'chuni-dll.h',
+        'config.c',
+        'config.h',
+        'dllmain.c',
+        'io4.c',
+        'io4.h',
+        'slider.c',
+        'slider.h',
+        'led1509306.c',
+        'led1509306.h',
+    ],
+)

chusanhook/slider.c

@@ -0,0 +1,249 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <process.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "board/slider-cmd.h"
+#include "board/slider-frame.h"
+
+#include "chusanhook/chuni-dll.h"
+#include "chusanhook/slider.h"
+
+#include "hook/iobuf.h"
+#include "hook/iohook.h"
+
+#include "hooklib/uart.h"
+
+#include "util/dprintf.h"
+#include "util/dump.h"
+
+static HRESULT slider_handle_irp(struct irp *irp);
+static HRESULT slider_handle_irp_locked(struct irp *irp);
+
+static HRESULT slider_req_dispatch(const union slider_req_any *req);
+static HRESULT slider_req_reset(void);
+static HRESULT slider_req_get_board_info(void);
+static HRESULT slider_req_auto_scan_start(void);
+static HRESULT slider_req_auto_scan_stop(void);
+static HRESULT slider_req_set_led(const struct slider_req_set_led *req);
+
+static void slider_res_auto_scan(const uint8_t *state);
+
+static CRITICAL_SECTION slider_lock;
+static struct uart slider_uart;
+static uint8_t slider_written_bytes[520];
+static uint8_t slider_readable_bytes[520];
+
+HRESULT slider_hook_init(const struct slider_config *cfg)
+{
+    assert(cfg != NULL);
+    assert(chuni_dll.slider_init != NULL);
+
+    if (!cfg->enable) {
+        return S_FALSE;
+    }
+
+    InitializeCriticalSection(&slider_lock);
+
+    uart_init(&slider_uart, 1);
+    slider_uart.written.bytes = slider_written_bytes;
+    slider_uart.written.nbytes = sizeof(slider_written_bytes);
+    slider_uart.readable.bytes = slider_readable_bytes;
+    slider_uart.readable.nbytes = sizeof(slider_readable_bytes);
+
+    return iohook_push_handler(slider_handle_irp);
+}
+
+static HRESULT slider_handle_irp(struct irp *irp)
+{
+    HRESULT hr;
+
+    assert(irp != NULL);
+
+    if (!uart_match_irp(&slider_uart, irp)) {
+        return iohook_invoke_next(irp);
+    }
+
+    EnterCriticalSection(&slider_lock);
+    hr = slider_handle_irp_locked(irp);
+    LeaveCriticalSection(&slider_lock);
+
+    return hr;
+}
+
+static HRESULT slider_handle_irp_locked(struct irp *irp)
+{
+    union slider_req_any req;
+    struct iobuf req_iobuf;
+    HRESULT hr;
+
+    if (irp->op == IRP_OP_OPEN) {
+        dprintf("Chunithm slider: Starting backend\n");
+        hr = chuni_dll.slider_init();
+
+        if (FAILED(hr)) {
+            dprintf("Chunithm slider: Backend error: %x\n", (int) hr);
+
+            return hr;
+        }
+    }
+
+    hr = uart_handle_irp(&slider_uart, irp);
+
+    if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
+        return hr;
+    }
+
+    for (;;) {
+#if 0
+        dprintf("TX Buffer:\n");
+        dump_iobuf(&slider_uart.written);
+#endif
+
+        req_iobuf.bytes = req.bytes;
+        req_iobuf.nbytes = sizeof(req.bytes);
+        req_iobuf.pos = 0;
+
+        hr = slider_frame_decode(&req_iobuf, &slider_uart.written);
+
+        if (hr != S_OK) {
+            if (FAILED(hr)) {
+                dprintf("Chunithm slider: Deframe error: %x\n", (int) hr);
+            }
+
+            return hr;
+        }
+
+#if 0
+        dprintf("Deframe Buffer:\n");
+        dump_iobuf(&req_iobuf);
+#endif
+
+        hr = slider_req_dispatch(&req);
+
+        if (FAILED(hr)) {
+            dprintf("Chunithm slider: Processing error: %x\n", (int) hr);
+        }
+    }
+}
+
+static HRESULT slider_req_dispatch(const union slider_req_any *req)
+{
+    switch (req->hdr.cmd) {
+    case SLIDER_CMD_RESET:
+        return slider_req_reset();
+
+    case SLIDER_CMD_GET_BOARD_INFO:
+        return slider_req_get_board_info();
+
+    case SLIDER_CMD_SET_LED:
+        return slider_req_set_led(&req->set_led);
+
+    case SLIDER_CMD_AUTO_SCAN_START:
+        return slider_req_auto_scan_start();
+
+    case SLIDER_CMD_AUTO_SCAN_STOP:
+        return slider_req_auto_scan_stop();
+
+    default:
+        dprintf("Unhandled command %02x\n", req->hdr.cmd);
+
+        return S_OK;
+    }
+}
+
+static HRESULT slider_req_reset(void)
+{
+    struct slider_hdr resp;
+
+    dprintf("Chunithm slider: Reset\n");
+
+    resp.sync = 0xFF;
+    resp.cmd = SLIDER_CMD_RESET;
+    resp.nbytes = 0;
+
+    return slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT slider_req_get_board_info(void)
+{
+    struct slider_resp_get_board_info resp;
+
+    dprintf("Chunithm slider: Get firmware version\n");
+
+    memset(&resp, 0, sizeof(resp));
+    resp.hdr.sync = SLIDER_FRAME_SYNC;
+    resp.hdr.cmd = SLIDER_CMD_GET_BOARD_INFO;
+    resp.hdr.nbytes = sizeof(resp.version);
+
+    strcpy_s(
+            resp.version,
+            sizeof(resp.version),
+            "15330   \xA0" "06712\xFF" "\x90");
+
+    return slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT slider_req_auto_scan_start(void)
+{
+    assert(chuni_dll.slider_start != NULL);
+
+    dprintf("Chunithm slider: Start slider notifications\n");
+    chuni_dll.slider_start(slider_res_auto_scan);
+
+    /* This message is not acknowledged */
+
+    return S_OK;
+}
+
+static HRESULT slider_req_auto_scan_stop(void)
+{
+    struct slider_hdr resp;
+
+    assert(chuni_dll.slider_stop != NULL);
+
+    dprintf("Chunithm slider: Stop slider notifications\n");
+
+    /* IO DLL worker thread might attempt to invoke the callback (which needs
+       to take slider_lock, which we are currently holding) before noticing that
+       it needs to shut down. Unlock here so that we don't deadlock in that
+       situation. */
+
+    LeaveCriticalSection(&slider_lock);
+    chuni_dll.slider_stop();
+    EnterCriticalSection(&slider_lock);
+
+    resp.sync = SLIDER_FRAME_SYNC;
+    resp.cmd = SLIDER_CMD_AUTO_SCAN_STOP;
+    resp.nbytes = 0;
+
+    return slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT slider_req_set_led(const struct slider_req_set_led *req)
+{
+    assert(chuni_dll.slider_set_leds != NULL);
+
+    chuni_dll.slider_set_leds(req->payload.rgb);
+
+    /* This message is not acknowledged */
+
+    return S_OK;
+}
+
+static void slider_res_auto_scan(const uint8_t *state)
+{
+    struct slider_resp_auto_scan resp;
+
+    resp.hdr.sync = SLIDER_FRAME_SYNC;
+    resp.hdr.cmd = SLIDER_CMD_AUTO_SCAN;
+    resp.hdr.nbytes = sizeof(resp.pressure);
+    memcpy(resp.pressure, state, sizeof(resp.pressure));
+
+    EnterCriticalSection(&slider_lock);
+    slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
+    LeaveCriticalSection(&slider_lock);
+}

chusanhook/slider.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stdbool.h>
+
+struct slider_config {
+    bool enable;
+};
+
+HRESULT slider_hook_init(const struct slider_config *cfg);

dist/chusan/segatools.ini

@@ -0,0 +1,112 @@
+[vfs]
+; Insert the path to the game AMFS directory here (contains ICF1 and ICF2)
+amfs=
+; Insert the path to the game Option directory here (contains Axxx directories)
+option=
+; Create an empty directory somewhere and insert the path here.
+; This directory may be shared between multiple SEGA games.
+; NOTE: This has nothing to do with Windows %APPDATA%.
+appdata=
+
+[aime]
+; Enable aime reader emulation.
+enable=1
+; Enable high baud rate.
+;highbaud=1
+
+[aimeio]
+; x64 aimeio dll path.
+; Uncomment this if you have custom aime implementation.
+;path64=
+
+[dns]
+; Insert the hostname or IP address of the server you wish to use here.
+; Note that 127.0.0.1, localhost etc are specifically rejected.
+default=127.0.0.1
+
+[netenv]
+; Simulate an ideal LAN environment. This may interfere with head-to-head play.
+; Chunithm is extremely picky about its LAN environment, so leaving this
+; setting enabled is strongly recommended.
+enable=1
+
+[keychip]
+; The /24 LAN subnet that the emulated keychip will tell the game to expect.
+; If you disable netenv then you must set this to your LAN's IP subnet, and
+; that subnet must start with 192.168.
+subnet=192.168.100.0
+
+[gfx]
+; Force the game to run windowed.
+windowed=1
+; Add a frame to the game window if running windowed.
+framed=1
+; Select the monitor to run the game on. (Fullscreen only, 0 =primary screen)
+monitor=0
+
+; -----------------------------------------------------------------------------
+; Input settings
+; -----------------------------------------------------------------------------
+
+; Keyboard bindings are specified as hexadecimal (prefixed with 0x) or decimal
+; (not prefixed with 0x) virtual-key codes, a list of which can be found here:
+;
+; https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
+;
+; This is, admittedly, not the most user-friendly configuration method in the
+; world. An improved solution will be provided later.
+
+[io3]
+; Test button virtual-key code. Default is the 1 key.
+test=0x31
+; Service button virtual-key code. Default is the 2 key.
+service=0x32
+; Keyboard button to increment coin counter. Default is the 3 key.
+coin=0x33
+; Set to 0 for enable separate ir control. Deafult is space key.
+ir=0x20
+
+[io4]
+enable=1
+
+[ledstrip]
+; Set to 1 if running game in CVT mode.
+cvt_port=0
+
+[chuniio]
+; Uncomment this if you have custom chuniio implementation.
+; x86 chuniio to path32, x64 to path64. Both are necessary.
+;path32=
+;path64=
+
+[slider]
+; Enable slider emulation. If you have real AC slider, set this to 0.
+; Slider serial port must be COM1.
+;enable=1
+
+; Key bindings for each of the 32 touch cells. The default key map, depicted
+; in left-to-right order, is as follows:
+;
+;                   SSSSDDDDFFFFGGGGHHHHJJJJKKKKLLLL
+;
+; Touch cells are numbered FROM RIGHT TO LEFT! starting from 1. This is in
+; order to match the numbering used in the operator menu and service manual.
+;
+; Uncomment and complete the following sequence of settings to configure a
+; custom high-precision touch strip controller if you have one.
+;cell1=0x53
+;cell2=0x53
+; ... etc ...
+;cell31=0x53
+;cell32=0x53
+
+; Enable slider LED serial output. This follows OpeNITHM Serial LED Protocol.
+; eg. COM5
+;ledport=
+
+[ir]
+; Uncomment and complete the following sequence of settings to configure a
+; custom ir-cappable controller if you have one.
+;ir6=0x53
+; ... etc ...
+;ir1=0x53

dist/chusan/start.bat

@@ -0,0 +1,11 @@
+@echo off
+
+pushd %~dp0
+
+start /min inject_x64.exe -d -k chusanhook_x64.dll amdaemon.exe -f -c config_common.json config_server.json config_sp.json
+inject_x86.exe -d -k chusanhook_x86.dll chusanApp.exe
+taskkill /f /im amdaemon.exe > nul 2>&1
+
+echo.
+echo Game processes have terminated
+pause

meson.build

@@ -71,6 +71,7 @@ subdir('idzhook')
 subdir('idachook')
 subdir('swdchook')
 subdir('minihook')
+subdir('chusanhook')
 subdir('mu3hook')
 subdir('mercuryhook')
 subdir('cxbhook')