carol: add touch dll functions

Reviewed-on: Hay1tsme/segatools#1

Makefile

@@ -1,5 +1,3 @@
-SHELL = /bin/bash
-
 V               ?= @
 
 .DEFAULT_GOAL := help
@@ -7,16 +5,12 @@ V               ?= @
 BUILD_DIR := build
 BUILD_DIR_32 := $(BUILD_DIR)/build32
 BUILD_DIR_64 := $(BUILD_DIR)/build64
-BUILD_DIR_DOCKER := $(BUILD_DIR)/docker
 BUILD_DIR_ZIP := $(BUILD_DIR)/zip
 
 DOC_DIR := doc
 
 DIST_DIR := dist
 
-DOCKER_CONTAINER_NAME := "segatools-build"
-DOCKER_IMAGE_NAME     := "segatools:build"
-
 # -----------------------------------------------------------------------------
 # Targets
 # -----------------------------------------------------------------------------
@@ -44,15 +38,6 @@ zip: $(BUILD_DIR_ZIP)/segatools.zip
 clean:
 	$(V)rm -rf $(BUILD_DIR) subprojects/capnhook
 
-.PHONY: build-docker # Build the project in a docker container
-build-docker:
-	$(V)docker rm -f $(DOCKER_CONTAINER_NAME) 2> /dev/null || true
-	$(V)docker build -t $(DOCKER_IMAGE_NAME) -f Dockerfile .
-	$(V)docker create --name $(DOCKER_CONTAINER_NAME) $(DOCKER_IMAGE_NAME)
-	$(V)rm -rf $(BUILD_DIR_DOCKER)
-	$(V)mkdir -p $(BUILD_DIR_DOCKER)
-	$(V)docker cp $(DOCKER_CONTAINER_NAME):/segatools/$(BUILD_DIR_ZIP) $(BUILD_DIR_DOCKER)
-
 # -----------------------------------------------------------------------------
 # Utility, combo and alias targets
 # -----------------------------------------------------------------------------

carolhook/carol-dll.c

@@ -21,9 +21,18 @@ const struct dll_bind_sym carol_dll_syms[] = {
     }, {
         .sym = "carol_io_touch_init",
         .off = offsetof(struct carol_dll, touch_init),
+    }, {
+        .sym = "carol_io_ledbd_init",
+        .off = offsetof(struct carol_dll, ledbd_init),
     }, {
         .sym = "carol_io_controlbd_init",
         .off = offsetof(struct carol_dll, controlbd_init),
+    }, {
+        .sym = "carol_io_touch_start",
+        .off = offsetof(struct carol_dll, touch_start),
+    }, {
+        .sym = "carol_io_touch_stop",
+        .off = offsetof(struct carol_dll, touch_stop),
     }
 };
 

carolhook/carol-dll.h

@@ -10,7 +10,10 @@ struct carol_dll {
     void (*jvs_poll)(uint8_t *opbtn, uint8_t *beams);
     void (*jvs_read_coin_counter)(uint16_t *total);
     HRESULT (*touch_init)();
+    HRESULT (*ledbd_init)();
     HRESULT (*controlbd_init)();
+    void (*touch_start)(carol_io_touch_callback_t callback);
+    void (*touch_stop)();
 };
 
 struct carol_dll_config {

carolhook/carolhook.def

@@ -16,4 +16,7 @@ EXPORTS
     carol_io_jvs_poll
     carol_io_jvs_read_coin_counter
     carol_io_touch_init
+    carol_io_ledbd_init
     carol_io_controlbd_init
+    carol_io_touch_start
+    carol_io_touch_stop

carolhook/config.c

@@ -58,6 +58,20 @@ void controlbd_config_load(
             filename);
 }
 
+void ledbd_config_load(
+        struct ledbd_config *cfg,
+        const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    cfg->enable = GetPrivateProfileIntW(
+            L"ledbd",
+            L"enable",
+            1,
+            filename);
+}
+
 
 void carol_hook_config_load(
         struct carol_hook_config *cfg,
@@ -73,4 +87,5 @@ void carol_hook_config_load(
     gfx_config_load(&cfg->gfx, filename);
     touch_config_load(&cfg->touch, filename);
     controlbd_config_load(&cfg->controlbd, filename);
+    ledbd_config_load(&cfg->ledbd, filename);
 }

carolhook/config.h

@@ -13,6 +13,7 @@
 #include "gfxhook/gfx.h"
 
 #include "carolhook/touch.h"
+#include "carolhook/ledbd.h"
 #include "carolhook/controlbd.h"
 
 struct carol_hook_config {
@@ -22,6 +23,7 @@ struct carol_hook_config {
     struct carol_dll_config dll;
     struct gfx_config gfx;
     struct touch_config touch;
+    struct ledbd_config ledbd;
     struct controlbd_config controlbd;
 };
 

carolhook/controlbd.c

@@ -8,6 +8,8 @@
 #include "hook/iobuf.h"
 #include "hook/iohook.h"
 
+#include "hook/table.h"
+
 #include "carolhook/carol-dll.h"
 #include "carolhook/controlbd.h"
 
@@ -18,16 +20,57 @@
 
 static HRESULT controlbd_handle_irp(struct irp *irp);
 static HRESULT controlbd_handle_irp_locked(struct irp *irp);
-static HRESULT controlbd_frame_decode(struct controlbd_req *dest, struct iobuf *iobuf);
+static HRESULT controlbd_frame_decode(struct controlbd_req_any *dest, struct iobuf *src);
-static HRESULT controlbd_frame_dispatch(struct controlbd_req *dest);
+static HRESULT controlbd_set_header(struct controlbd_resp_hdr *resp, uint8_t cmd, uint8_t len);
+static uint8_t calc_checksum(void *data, size_t len);
 
-static HRESULT controlbd_req_nop(uint8_t cmd);
+static HRESULT controlbd_req_dispatch(const struct controlbd_req_any *req);
+static HRESULT controlbd_req_ack_any(uint8_t cmd);
+static HRESULT controlbd_req_reset(void);
+static HRESULT controlbd_req_get_board_info(void);
+static HRESULT controlbd_req_firmware_checksum(void);
+static HRESULT controlbd_req_polling(const struct controlbd_req_any *req);
+
+const uint8_t CONTROLBD_SYNC_BYTE = 0xE0;
 
 static CRITICAL_SECTION controlbd_lock;
 static struct uart controlbd_uart;
 static uint8_t controlbd_written_bytes[520];
 static uint8_t controlbd_readable_bytes[520];
 
+static BOOL WINAPI my_CreateProcessA(
+    LPCSTR                lpApplicationName,
+    LPSTR                 lpCommandLine,
+    LPSECURITY_ATTRIBUTES lpProcessAttributes,
+    LPSECURITY_ATTRIBUTES lpThreadAttributes,
+    BOOL                  bInheritHandles,
+    DWORD                 dwCreationFlags,
+    LPVOID                lpEnvironment,
+    LPCSTR                lpCurrentDirectory,
+    LPSTARTUPINFOA        lpStartupInfo,
+    LPPROCESS_INFORMATION lpProcessInformation
+);
+static BOOL (WINAPI *next_CreateProcessA)(
+    LPCSTR                lpApplicationName,
+    LPSTR                 lpCommandLine,
+    LPSECURITY_ATTRIBUTES lpProcessAttributes,
+    LPSECURITY_ATTRIBUTES lpThreadAttributes,
+    BOOL                  bInheritHandles,
+    DWORD                 dwCreationFlags,
+    LPVOID                lpEnvironment,
+    LPCSTR                lpCurrentDirectory,
+    LPSTARTUPINFOA        lpStartupInfo,
+    LPPROCESS_INFORMATION lpProcessInformation
+);
+
+static const struct hook_symbol win32_hooks[] = {
+    {
+        .name = "CreateProcessA",
+        .patch = my_CreateProcessA,
+        .link = (void **) &next_CreateProcessA
+    }
+};
+
 HRESULT controlbd_hook_init(const struct controlbd_config *cfg)
 {
     if (!cfg->enable) {
@@ -36,12 +79,18 @@ HRESULT controlbd_hook_init(const struct controlbd_config *cfg)
 
     InitializeCriticalSection(&controlbd_lock);
 
-    uart_init(&controlbd_uart, 11);
+    uart_init(&controlbd_uart, 12);
     controlbd_uart.written.bytes = controlbd_written_bytes;
     controlbd_uart.written.nbytes = sizeof(controlbd_written_bytes);
     controlbd_uart.readable.bytes = controlbd_readable_bytes;
     controlbd_uart.readable.nbytes = sizeof(controlbd_readable_bytes);
 
+    hook_table_apply(
+            NULL,
+            "kernel32.dll",
+            win32_hooks,
+            _countof(win32_hooks));
+
     dprintf("Control Board: Init\n");
 
     return iohook_push_handler(controlbd_handle_irp);
@@ -64,10 +113,49 @@ static HRESULT controlbd_handle_irp(struct irp *irp)
     return hr;
 }
 
+static HRESULT controlbd_frame_decode(struct controlbd_req_any *req, struct iobuf *src)
+{
+    uint8_t data_len = 0;
+    uint8_t checksum_pos = src->pos - 1;
+    uint8_t calculated_checksum = 0;
+    uint8_t checksum = 0;
+    
+    if (src->pos < 6) {
+        dprintf("Control Board: Decode Error, request too short (pos is 0x%08X)\n", (int)src->pos);
+        return SEC_E_BUFFER_TOO_SMALL;
+    }
+
+    req->hdr.sync = src->bytes[0];
+    req->hdr.dest = src->bytes[1];
+    req->hdr.src = src->bytes[2];
+    req->hdr.len = src->bytes[3];
+    req->hdr.cmd = src->bytes[4];
+    data_len = req->hdr.len;
+    src->pos -= 5;
+
+    for (int i = 0; i < data_len; i++) {
+        if (src->pos == 0) {
+            break;
+        }
+        req->bytes[i] = src->bytes[i + 5];
+        src->pos --;
+    }
+
+    checksum = src->bytes[checksum_pos];
+    calculated_checksum = calc_checksum(req, checksum_pos);
+
+    if (checksum != calculated_checksum) {
+        dprintf("Control Board: Decode Error, checksum failure (expected 0x%02X, got 0x%02X)\n", calculated_checksum, checksum);
+        return HRESULT_FROM_WIN32(ERROR_CRC);
+    }
+
+    return S_OK;
+}
+
 static HRESULT controlbd_handle_irp_locked(struct irp *irp)
 {
-    struct controlbd_req req;
     HRESULT hr;
+    struct controlbd_req_any req;
 
     assert(carol_dll.controlbd_init != NULL);
 
@@ -76,7 +164,7 @@ static HRESULT controlbd_handle_irp_locked(struct irp *irp)
         hr = carol_dll.controlbd_init();
 
         if (FAILED(hr)) {
-            dprintf("Control Board: Backend DLL error: %x\n", (int) hr);
+            dprintf("Control Board: Backend DLL error: 0X%X\n", (int) hr);
 
             return hr;
         }
@@ -89,90 +177,251 @@ static HRESULT controlbd_handle_irp_locked(struct irp *irp)
     }
 
     for (;;) {
+        if (controlbd_uart.written.bytes[0] == 0xE0) {
 #if 0
-        dprintf("Control Board: TX Buffer:\n");
+            dprintf("Control Board: TX Buffer:\n");
-        dump_iobuf(&controlbd_uart.written);
+            dump_iobuf(&controlbd_uart.written);
 #endif
-        hr = controlbd_frame_decode(&req, &controlbd_uart.written);
+            hr = controlbd_frame_decode(&req, &controlbd_uart.written);
-
+            if (FAILED(hr)) {
-        if (FAILED(hr)) {
+                dprintf("Control Board: Deframe error: %x\n", (int) hr);
-            dprintf("Control Board: Deframe Error: %x\n", (int) hr);
+                return hr;
+            }
 
+            hr = controlbd_req_dispatch(&req);            
+            if (FAILED(hr)) {
+                dprintf("Control Board: Dispatch Error: 0X%X\n", (int) hr);
+                return hr;
+            }
+#if 0
+            dprintf("Control Board: RX Buffer:\n");
+            dump_iobuf(&controlbd_uart.readable);
+#endif
+            controlbd_uart.written.pos = 0;
             return hr;
         }
 
-        hr = controlbd_frame_dispatch(&req);
+        // The board has a LPC111x bootloader that gets ran over every boot
-        if (FAILED(hr)) {
+        // this is to account for that.
-            dprintf("Control Board: Dispatch Error: %x\n", (int) hr);
+        char cmd[255];
+        strcpy_s(cmd, 255, (char *)controlbd_uart.written.bytes);
+        cmd[controlbd_uart.written.pos] = '\0';
 
-            return hr;
+        if (!strcmp(cmd, "?")) {
+            dprintf("Control Board: Bootloader Hello\n");
+        }
+        else if (!strcmp(cmd, "Synchronized\r\n")) {
+            iobuf_write(&controlbd_uart.readable, "Synchronized\r\nNG\r\n", 19);
+            // Set this to OK instead of NG to do an update
+        }
+        else if (!strcmp(cmd, "12000\r\n")) {
+            iobuf_write(&controlbd_uart.readable, "12000\r\nOK\r\n", 12);
+        }
+        else {
+            // Everything other then the two commands above just want 0\r\n
+            // appended to the request as the response. Given that it only checks sometimes,
+            // it's safe to just run over the readable buffer every response.
+            controlbd_uart.readable.pos = 0;
+            cmd[controlbd_uart.written.pos] = '0';
+            cmd[controlbd_uart.written.pos + 1] = '\r';
+            cmd[controlbd_uart.written.pos + 2] = '\n';
+            cmd[controlbd_uart.written.pos + 3] = '\0';
+            // dprintf("Control Board: Return %s\n", cmd);
+            iobuf_write(&controlbd_uart.readable, cmd, controlbd_uart.written.pos + 3);
         }
 
+        controlbd_uart.written.pos = 0;
         return hr;
     }
 }
 
-static HRESULT controlbd_frame_dispatch(struct controlbd_req *req)
+static HRESULT controlbd_req_dispatch(const struct controlbd_req_any *req)
 {
-    switch (req->cmd) {
+    switch (req->hdr.cmd) {
-    case CONTROLBD_CMD_UNK_11:
+    case CONTROLBD_CMD_RESET:
-        return controlbd_req_nop(req->cmd);
+        return controlbd_req_reset();
+
+    case CONTROLBD_CMD_BDINFO:
+        return controlbd_req_get_board_info();
+
+    case CONTROLBD_CMD_FIRM_SUM:
+        return controlbd_req_firmware_checksum();
+
+    case CONTROLBD_CMD_TIMEOUT:        
+        dprintf("Control Board: Acknowledge Timeout\n");
+        return controlbd_req_ack_any(req->hdr.cmd);
+
+    case CONTROLBD_CMD_PORT_SETTING:
+        dprintf("Control Board: Acknowledge Port Setting\n");
+        return controlbd_req_ack_any(req->hdr.cmd);
+
+    case CONTROLBD_CMD_INITIALIZE:
+        dprintf("Control Board: Acknowledge Initialize\n");
+        return controlbd_req_ack_any(req->hdr.cmd);
+
+    case CONTROLBD_CMD_POLLING:
+        return controlbd_req_polling(req);
+
     default:
-        dprintf("Unhandled command %#02x\n", req->cmd);
+        dprintf("Unhandled command 0x%02x\n", req->hdr.cmd);
-
+        return controlbd_req_ack_any(req->hdr.cmd);
-        return S_OK;
     }
 }
 
-static HRESULT controlbd_req_nop(uint8_t cmd)
+static HRESULT controlbd_set_header(struct controlbd_resp_hdr *resp, uint8_t cmd, uint8_t len)
 {
-    dprintf("Control Board: No-op cmd %#02x\n", cmd);
+    resp->sync = CONTROLBD_SYNC_BYTE;
-
+    resp->dest = 0x01;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0xE0;
+    resp->src = 0x02;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x01;
+    resp->len = len;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x11;
+    resp->report = 0x01;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x03;
+    resp->cmd = cmd;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x01;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x10;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x01;
-    controlbd_uart.readable.bytes[controlbd_uart.readable.pos++] = 0x27;
-
     return S_OK;
 }
 
-/* Decodes the response into a struct that's easier to work with. */
+static uint8_t calc_checksum(void *data, size_t len)
-static HRESULT controlbd_frame_decode(struct controlbd_req *dest, struct iobuf *iobuf)
 {
-    int initial_pos = iobuf->pos;
+    uint8_t *stuff;
-    uint8_t check = 0;
+    stuff = data;
+    uint8_t checksum = 0;
+    uint16_t tmp = 0;
 
-    dest->sync = iobuf->bytes[0];
+    for (int i = 1; i < len; i++) {
-    iobuf->pos--;
+        tmp = checksum + stuff[i];
-
+        checksum = tmp & 0xFF;
-    dest->cmd = iobuf->bytes[1];
-    iobuf->pos--;
-    check += dest->cmd;
-
-    dest->checksum = iobuf->bytes[initial_pos - 1];
-    iobuf->pos--;
-
-    dest->data_length = initial_pos - 3; // sync, cmd, checksum
-    if (dest->data_length > 0) {
-        for (int i = 0; i < dest->data_length; i++) {
-            dest->data[i] = iobuf->bytes[i+2];
-            check += dest->data[i];
-        }
-    }
-    iobuf->pos -= dest->data_length;
-
-    if (dest->sync != 0xe0) {
-        dprintf("Control Board: Sync error, expected 0xe0, got %x\n", dest->sync);
-        return E_FAIL;
-    }
-    if (dest->checksum != check) {
-        dprintf("Control Board: Checksum error, expected %x, got %x\n", check, dest->checksum);
-        return E_FAIL;
     }
 
-    return S_OK;
+    return checksum;
+}
+
+static HRESULT controlbd_req_reset(void)
+{
+    struct controlbd_resp_reset resp;
+
+    dprintf("Control Board: Reset\n");
+
+    controlbd_set_header(&resp.hdr, CONTROLBD_CMD_RESET, 2);
+    resp.checksum = 0;
+
+    // No data, just ack
+    resp.checksum = calc_checksum(&resp, sizeof(resp));
+    return iobuf_write(&controlbd_uart.readable, &resp, sizeof(resp));
+
+}
+
+static HRESULT controlbd_req_get_board_info(void)
+{
+    struct controlbd_resp_bdinfo resp;
+    memset(&resp, 0, sizeof(resp));
+    dprintf("Control Board: Get Board Info\n");
+    controlbd_set_header(&resp.hdr, CONTROLBD_CMD_BDINFO, 21);
+
+    resp.rev = 0x90;
+    resp.bfr_size = 0x0001;
+    resp.ack = 1;
+    
+    strcpy_s(resp.bd_no, sizeof(resp.bd_no), "15312   ");
+    strcpy_s(resp.chip_no, sizeof(resp.chip_no), "6699 ");
+    resp.chip_no[5] = 0xFF;
+    resp.bd_no[8] = 0x0A;
+
+    resp.checksum = calc_checksum(&resp, sizeof(resp));
+
+    return iobuf_write(&controlbd_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT controlbd_req_firmware_checksum(void)
+{
+    struct controlbd_resp_fw_checksum resp;
+    memset(&resp, 0, sizeof(resp));
+    dprintf("Control Board: Get Firmware Checksum\n");
+    controlbd_set_header(&resp.hdr, CONTROLBD_CMD_FIRM_SUM, 5);
+
+    resp.ack = 1;
+    resp.fw_checksum = 0x1b36; // This could change with an update... oh well
+    resp.checksum = calc_checksum(&resp, sizeof(resp));
+
+    return iobuf_write(&controlbd_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT controlbd_req_polling(const struct controlbd_req_any *req)
+{
+    struct controlbd_req_polling req_struct;
+    memset(&req_struct, 0, sizeof(req_struct));
+    memcpy_s(&req_struct, sizeof(req_struct), req, sizeof(req_struct));
+    struct controlbd_resp_polling resp;
+    memset(&resp, 0, sizeof(resp));
+    controlbd_set_header(&resp.hdr, CONTROLBD_CMD_POLLING, 16);
+    // TODO: Figure out output (pen vibration, etc)
+
+    resp.ack = 1;
+    resp.unk7 = 3;
+    resp.unk8 = 1;
+    resp.unk9 = 1;
+    
+    resp.btns_pressed = 0; // bit 1 is pen button, bit 2 is dodge
+    resp.coord_x = 0x0;
+    resp.coord_y = 0x0;
+    resp.checksum = calc_checksum(&resp, sizeof(resp));
+
+    return iobuf_write(&controlbd_uart.readable, &resp, sizeof(resp));
+}
+
+static HRESULT controlbd_req_ack_any(uint8_t cmd)
+{
+    struct controlbd_resp_any_ack resp;
+    memset(&resp, 0, sizeof(resp));
+    controlbd_set_header(&resp.hdr, cmd, 3);
+
+    resp.ack = 1;
+    resp.checksum = calc_checksum(&resp, sizeof(resp));
+
+    return iobuf_write(&controlbd_uart.readable, &resp, sizeof(resp));
+}
+
+static BOOL WINAPI my_CreateProcessA(
+    LPCSTR                lpApplicationName,
+    LPSTR                 lpCommandLine,
+    LPSECURITY_ATTRIBUTES lpProcessAttributes,
+    LPSECURITY_ATTRIBUTES lpThreadAttributes,
+    BOOL                  bInheritHandles,
+    DWORD                 dwCreationFlags,
+    LPVOID                lpEnvironment,
+    LPCSTR                lpCurrentDirectory,
+    LPSTARTUPINFOA        lpStartupInfo,
+    LPPROCESS_INFORMATION lpProcessInformation
+)
+{
+    dprintf("Control Board: my_CreateProcessA Hit! %s\n", lpCommandLine);
+    if (strncmp(".\\15312firm\\firmupdate_1113.exe", lpCommandLine, 31)) {
+        return next_CreateProcessA(
+            lpApplicationName,
+            lpCommandLine,
+            lpProcessAttributes,
+            lpThreadAttributes,
+            bInheritHandles,
+            dwCreationFlags,
+            lpEnvironment,
+            lpCurrentDirectory,
+            lpStartupInfo,
+            lpProcessInformation
+        );
+    }
+
+    dprintf("Control Board: Hooking child process\n");
+    char new_cmd[MAX_PATH] = "inject -d -k carolhook.dll ";
+    strcat_s(new_cmd, MAX_PATH, lpCommandLine);
+
+    return next_CreateProcessA(
+            lpApplicationName,
+            new_cmd,
+            lpProcessAttributes,
+            lpThreadAttributes,
+            bInheritHandles,
+            dwCreationFlags,
+            lpEnvironment,
+            lpCurrentDirectory,
+            lpStartupInfo,
+            lpProcessInformation
+        );
 }

carolhook/controlbd.h

@@ -1,5 +1,7 @@
 #pragma once
 #include <windows.h>
+#include <stdbool.h>
+#include <stdint.h>
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -7,15 +9,140 @@
 struct controlbd_config {
     bool enable;
 };
-enum controlbd_cmd {
+
-    CONTROLBD_CMD_UNK_11 = 0x11
+#pragma pack(push, 1)
-};
+struct controlbd_req_hdr {
-struct controlbd_req {
+    uint8_t sync;
-    uint8_t sync; // First byte is the sync
+    uint8_t dest; // unsure
-    uint8_t cmd; // Command byte    
+    uint8_t src; // unsure
-    uint8_t data[256]; // Request body goes here
+    uint8_t len; // length of the rest of the request minus checksum
-    uint8_t checksum; // Final byte is all bytes added, except the sync
+    uint8_t cmd;
-    uint8_t data_length; // Size of the data including command byte
 };
 
+struct controlbd_req_any {
+    struct controlbd_req_hdr hdr;
+    uint8_t bytes[255];
+};
+
+struct controlbd_req_reset {
+    struct controlbd_req_hdr hdr;
+    uint8_t payload;
+    uint8_t checksum;
+};
+
+struct controlbd_req_bdinfo {
+    struct controlbd_req_hdr hdr;
+    uint8_t checksum;
+};
+
+struct controlbd_req_fw_checksum {
+    struct controlbd_req_hdr hdr;
+    uint8_t checksum;
+};
+
+struct controlbd_req_timeout {
+    struct controlbd_req_hdr hdr;
+    uint8_t unknown;
+    uint8_t checksum;
+};
+
+struct controlbd_req_polling {
+    struct controlbd_req_hdr hdr;
+    uint8_t unknown[20];
+    uint8_t checksum;
+};
+
+struct controlbd_resp_hdr {
+    uint8_t sync;
+    uint8_t dest; // unsure
+    uint8_t src; // unsure
+    uint8_t len; // length of the rest of the request minus checksum
+    uint8_t report; // 0x01 for success, anything else for failure
+    uint8_t cmd;
+};
+
+struct controlbd_resp_any {
+    struct controlbd_resp_hdr hdr;
+    uint8_t bytes[255];
+};
+
+struct controlbd_resp_any_ack {
+    struct controlbd_resp_hdr hdr;
+    uint8_t ack;
+    uint8_t checksum;
+};
+
+struct controlbd_resp_reset {
+    struct controlbd_resp_hdr hdr;
+    uint8_t checksum;
+};
+
+struct controlbd_resp_bdinfo {
+    struct controlbd_resp_hdr hdr;
+    uint8_t ack;
+    char bd_no[9];
+    char chip_no[6];
+    uint8_t rev;
+    uint16_t bfr_size;
+    uint8_t checksum;
+};
+
+struct controlbd_resp_fw_checksum {
+    struct controlbd_resp_hdr hdr;
+    uint8_t ack;
+    uint16_t fw_checksum;
+    uint8_t checksum;
+};
+
+struct controlbd_resp_polling {
+    struct controlbd_resp_hdr hdr;
+    uint8_t ack;
+    uint8_t unk7;
+    uint8_t unk8;
+    uint8_t unk9;    
+    uint8_t btns_pressed;
+    uint8_t blob[7];
+    int8_t coord_x;
+    int8_t coord_y;
+    uint8_t checksum;
+};
+
+enum {
+    PEN_BTN_PRESSED_BIT = 1,
+    DODGE_BTN_PRESSED_BIT = 2
+};
+
+enum {
+    CONTROLBD_CMD_RESET = 0x10,
+    CONTROLBD_CMD_TIMEOUT = 0x11,
+    CONTROLBD_CMD_RETRY = 0x12,
+
+    CONTROLBD_CMD_GETIN = 0x20,
+    CONTROLBD_CMD_GETADI = 0x21,
+
+    CONTROLBD_CMD_SETOUTPUT = 0x30,
+
+    CONTROLBD_CMD_INITIALIZE = 0x80,
+    CONTROLBD_CMD_POLLING = 0x81,
+    CONTROLBD_CMD_CUSTOM_PATTERN = 0x82,
+    CONTROLBD_CMD_DEBUG_CAROL = 0x83,
+    CONTROLBD_CMD_POLLING_GENERAL = 0x84,
+
+    CONTROLBD_CMD_CMD_STATUS = 0x90,
+    CONTROLBD_CMD_PORT_SETTING = 0x91,
+    CONTROLBD_CMD_PWM_DUTY = 0x92,
+    CONTROLBD_CMD_LED_SET = 0x93,
+    CONTROLBD_CMD_LED_REFRESH = 0x94,
+
+    CONTROLBD_CMD_DEBUG_UART = 0xB0,
+    CONTROLBD_CMD_DEBUG_I2C = 0xB1,
+
+    CONTROLBD_CMD_DEBUG_STATUS = 0xC0,
+
+    CONTROLBD_CMD_BDINFO = 0xF0,
+    CONTROLBD_CMD_FIRM_SUM = 0xF2,
+    CONTROLBD_CMD_PROTOCOL = 0xF3,
+    CONTROLBD_CMD_UPDATE = 0xFE,
+};
+#pragma pack(pop)
 HRESULT controlbd_hook_init(const struct controlbd_config *cfg);

carolhook/dllmain.c

@@ -12,8 +12,8 @@
 #include "carolhook/carol-dll.h"
 #include "carolhook/jvs.h"
 #include "carolhook/touch.h"
+#include "carolhook/ledbd.h"
 #include "carolhook/controlbd.h"
-#include "carolhook/serial.h"
 
 #include "hook/process.h"
 
@@ -30,17 +30,39 @@ static struct carol_hook_config carol_hook_cfg;
 
 /*
 COM Layout
-01:(?) Touchscreen
+01: Touchscreen
 10: Aime reader
-11: Control board
+11: LED board
-12(?): LED Board
+12: Control Board
 */
 
 static DWORD CALLBACK carol_pre_startup(void)
 {
     HRESULT hr;
+    HMODULE d3dc;
+    HMODULE dbghelp;
 
     dprintf("--- Begin carol_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 */
 
@@ -81,9 +103,7 @@ static DWORD CALLBACK carol_pre_startup(void)
     }
 
     gfx_hook_init(&carol_hook_cfg.gfx);
-    gfx_d3d9_hook_init(&carol_hook_cfg.gfx, carol_hook_mod);
+    gfx_d3d9_hook_init(&carol_hook_cfg.gfx, carol_hook_mod);    
-    //serial_init();
-    
 
     hr = touch_hook_init(&carol_hook_cfg.touch);
     
@@ -91,6 +111,12 @@ static DWORD CALLBACK carol_pre_startup(void)
         goto fail;
     }
 
+    hr = ledbd_hook_init(&carol_hook_cfg.ledbd);
+    
+    if (FAILED(hr)) {
+        goto fail;
+    }
+
     hr = controlbd_hook_init(&carol_hook_cfg.controlbd);
     
     if (FAILED(hr)) {

carolhook/ledbd.c

@@ -0,0 +1,168 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "hook/iobuf.h"
+#include "hook/iohook.h"
+
+#include "carolhook/carol-dll.h"
+#include "carolhook/ledbd.h"
+
+#include "hooklib/uart.h"
+
+#include "util/dprintf.h"
+#include "util/dump.h"
+
+#include "board/slider-frame.h"
+#include "board/slider-cmd.h"
+
+static HRESULT ledbd_handle_irp(struct irp *irp);
+static HRESULT ledbd_handle_irp_locked(struct irp *irp);
+static HRESULT ledbd_frame_dispatch(const union slider_req_any *dest);
+
+static HRESULT ledbd_req_noop(uint8_t cmd);
+static HRESULT ledbd_req_unk7c(uint8_t cmd);
+static HRESULT ledbd_req_unkF0(uint8_t cmd);
+
+static CRITICAL_SECTION ledbd_lock;
+static struct uart ledbd_uart;
+static uint8_t ledbd_written_bytes[520];
+static uint8_t ledbd_readable_bytes[520];
+
+HRESULT ledbd_hook_init(const struct ledbd_config *cfg)
+{
+    if (!cfg->enable) {
+        return S_OK;
+    }
+
+    InitializeCriticalSection(&ledbd_lock);
+
+    uart_init(&ledbd_uart, 11);
+    ledbd_uart.written.bytes = ledbd_written_bytes;
+    ledbd_uart.written.nbytes = sizeof(ledbd_written_bytes);
+    ledbd_uart.readable.bytes = ledbd_readable_bytes;
+    ledbd_uart.readable.nbytes = sizeof(ledbd_readable_bytes);
+
+    dprintf("LED Board: Init\n");
+
+    return iohook_push_handler(ledbd_handle_irp);
+}
+
+static HRESULT ledbd_handle_irp(struct irp *irp)
+{
+    HRESULT hr;
+
+    assert(irp != NULL);
+
+    if (!uart_match_irp(&ledbd_uart, irp)) {
+        return iohook_invoke_next(irp);
+    }
+
+    EnterCriticalSection(&ledbd_lock);
+    hr = ledbd_handle_irp_locked(irp);
+    LeaveCriticalSection(&ledbd_lock);
+
+    return hr;
+}
+
+static HRESULT ledbd_handle_irp_locked(struct irp *irp)
+{
+    union slider_req_any req;
+    struct iobuf req_iobuf;
+    HRESULT hr;
+
+    assert(carol_dll.ledbd_init != NULL);
+
+    if (irp->op == IRP_OP_OPEN) {
+        dprintf("LED Board: Starting backend DLL\n");
+        hr = carol_dll.ledbd_init();
+
+        if (FAILED(hr)) {
+            dprintf("LED Board: Backend DLL error: 0X%X\n", (int) hr);
+
+            return hr;
+        }
+    }
+
+    hr = uart_handle_irp(&ledbd_uart, irp);
+
+    if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
+        return hr;
+    }
+
+    for (;;) {
+#if 0
+        dprintf("LED Board: TX Buffer:\n");
+        dump_iobuf(&ledbd_uart.written);
+#endif
+        req_iobuf.bytes = req.bytes;
+        req_iobuf.nbytes = sizeof(req.bytes);
+        req_iobuf.pos = 0;
+
+        hr = slider_frame_decode(&req_iobuf, &ledbd_uart.written);
+
+        if (FAILED(hr)) {
+            dprintf("LED Board: Deframe Error: 0X%X\n", (int) hr);
+
+            return hr;
+        }
+
+        hr = ledbd_frame_dispatch(&req);
+        if (FAILED(hr)) {
+            dprintf("LED Board: Dispatch Error: 0X%X\n", (int) hr);
+
+            return hr;
+        }
+
+        return hr;
+    }
+}
+
+static HRESULT ledbd_frame_dispatch(const union slider_req_any *req)
+{
+    switch (req->hdr.cmd) {
+    case LEDBD_CMD_UNK_10:
+        return ledbd_req_noop(req->hdr.cmd);
+    case LEDBD_CMD_UNK_7C:
+        return ledbd_req_unk7c(req->hdr.cmd);
+    case LEDBD_CMD_UNK_F0:
+        return ledbd_req_unkF0(req->hdr.cmd);
+    case LEDBD_CMD_UNK_30:
+        return ledbd_req_noop(req->hdr.cmd);
+    default:
+        //dprintf("Unhandled command 0x%02X\n", req->cmd);
+        return ledbd_req_noop(req->hdr.cmd);
+    }
+}
+
+static HRESULT ledbd_req_noop(uint8_t cmd)
+{
+    //dprintf("LED Board: Noop cmd 0x%02X\n", cmd);
+    uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x03, 0x01, 0x00, 0x01, 0x17 };
+    resp[5] = cmd;
+    resp[7] = 0x17 + cmd;
+    iobuf_write(&ledbd_uart.readable, resp, 8);
+
+    return S_OK;
+}
+
+static HRESULT ledbd_req_unk7c(uint8_t cmd)
+{
+    //dprintf("LED Board: Cmd 0x7C\n");
+    uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x04, 0x01, 0x7C, 0x01, 0x07, 0x9B };
+    iobuf_write(&ledbd_uart.readable, resp, 9);
+
+    return S_OK;
+}
+
+static HRESULT ledbd_req_unkF0(uint8_t cmd)
+{
+    //dprintf("LED Board: Cmd 0xF0\n");
+    uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x0A, 0x01, 0xF0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0E };
+    iobuf_write(&ledbd_uart.readable, resp, 16);
+
+    return S_OK;
+}

carolhook/ledbd.h

@@ -0,0 +1,28 @@
+#pragma once
+#include <windows.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+
+struct ledbd_config {
+    bool enable;
+};
+
+enum ledbd_cmd {
+    LEDBD_CMD_UNK_10 = 0x10,
+    LEDBD_CMD_UNK_7C = 0x7C,
+    LEDBD_CMD_UNK_30 = 0x30,
+    LEDBD_CMD_UNK_F0 = 0xF0,
+};
+
+struct ledbd_req {
+    uint8_t sync; // Sync byte, always 0xE0
+    uint8_t dest; // command destination id?
+    uint8_t src; // command source id?
+    uint8_t data_len; // length of the proceeding data bytes
+    uint8_t cmd; // might be the command byte?
+    uint8_t data[255]; // rest of the data, len = data_len - 1
+    uint8_t checksum; // final byte is all bytes (excluding sync) added
+};
+
+HRESULT ledbd_hook_init(const struct ledbd_config *cfg);

carolhook/meson.build

@@ -32,7 +32,7 @@ shared_library(
         'touch.h',
         'controlbd.c',
         'controlbd.h',
-        'serial.c',
+        'ledbd.c',
-        'serial.h',
+        'ledbd.h',
     ],
 )

carolhook/serial.c

@@ -1,39 +0,0 @@
-#include <windows.h>
-#include <winbase.h>
-
-#include "hook/table.h"
-
-#include "util/dprintf.h"
-
-static BOOL WINAPI my_SetCommState(HANDLE hFile,  LPDCB lpDCB);
-static BOOL (WINAPI *next_SetCommState)(HANDLE hFile,  LPDCB lpDCB);
-static void com_hook_insert_hooks(HMODULE target);
-
-static const struct hook_symbol win32_hooks[] = {
-    {
-        .name = "SetCommState",
-        .patch = my_SetCommState,
-        .link = (void **) &next_SetCommState
-    }
-};
-
-void serial_init()
-{
-    com_hook_insert_hooks(NULL);
-    dprintf("Serial: Spy init\n");
-}
-
-static void com_hook_insert_hooks(HMODULE target)
-{
-    hook_table_apply(
-            target,
-            "kernel32.dll",
-            win32_hooks,
-            _countof(win32_hooks));
-}
-
-static BOOL WINAPI my_SetCommState(HANDLE hFile,  LPDCB lpDCB)
-{
-    dprintf("Serial: my_SetCommState with baudrate %ld\n", lpDCB->BaudRate);
-    return next_SetCommState(hFile, lpDCB);
-}

carolhook/serial.h

@@ -1,5 +0,0 @@
-#pragma once
-#include <windows.h>
-#include <winbase.h>
-
-void serial_init();

carolhook/touch.c

@@ -13,14 +13,36 @@
 #include "util/dprintf.h"
 #include "util/dump.h"
 
+/**
+ * CMDS for M3 EX series
+ * CX -> Calibrate Extend, preform callibration
+ * MS -> Mode Stream, enters stream mode
+ * R  -> Reset, resets the device
+ * RD -> Reset Default, Resets the device to factory
+ * Z  -> Null, keepalive command
+ * NM -> Name, return the name of the device (not documented?)
+ * OI -> Output Identity, output unique device identity, SC followed by 4 characters
+ * UT -> Unit Type, returns controller unit type + status
+ */
+
 static HRESULT touch_handle_irp(struct irp *irp);
 static HRESULT touch_handle_irp_locked(struct irp *irp);
 static HRESULT touch_frame_decode(struct touch_req *dest, struct iobuf *iobuf);
 
+static HRESULT handle_touch_ack_cmd(const struct touch_req *req);
+static HRESULT handle_touch_name_cmd(const struct touch_req *req);
+static HRESULT handle_touch_id_cmd(const struct touch_req *req);
+static void touch_scan_auto(const bool is_pressed, const uint32_t mouse_x, const uint32_t mouse_y);
+
 static CRITICAL_SECTION touch_lock;
 static struct uart touch_uart;
-static uint8_t touch_written_bytes[520];
+static uint8_t touch_written_bytes[528];
-static uint8_t touch_readable_bytes[520];
+static uint8_t touch_readable_bytes[528];
+static bool should_stream = false;
+static bool last_pressed;
+static uint16_t last_x;
+static uint16_t last_y;
+
 
 HRESULT touch_hook_init(const struct touch_config *cfg)
 {
@@ -71,7 +93,7 @@ static HRESULT touch_handle_irp_locked(struct irp *irp)
         hr = carol_dll.touch_init();
 
         if (FAILED(hr)) {
-            dprintf("Touchscreen: Backend DLL error: %x\n", (int) hr);
+            dprintf("Touchscreen: Backend DLL error: %X\n", (int) hr);
 
             return hr;
         }
@@ -84,35 +106,133 @@ static HRESULT touch_handle_irp_locked(struct irp *irp)
     }
 
     for (;;) {
-#if 1
+#if 0
         dprintf("Touchscreen: TX Buffer:\n");
         dump_iobuf(&touch_uart.written);
 #endif
         hr = touch_frame_decode(&req, &touch_uart.written);
 
         if (FAILED(hr)) {
-            dprintf("Touchscreen: Deframe Error: %x\n", (int) hr);
+            dprintf("Touchscreen: Deframe Error: %X\n", (int) hr);
 
             return hr;
         }
 
+        if (!strcmp("Z", (char *)req.cmd)) {
+            hr = handle_touch_ack_cmd(&req);
+        }
+        else if (!strcmp("OI", (char *)req.cmd)) {
+            hr = handle_touch_id_cmd(&req);
+            //carol_dll.touch_start(touch_scan_auto);
+        }
+        else if (!strcmp("NM", (char *)req.cmd)) {
+            hr = handle_touch_name_cmd(&req);
+        }
+        else if (!strcmp("R", (char *)req.cmd)) {
+            carol_dll.touch_stop();
+            dprintf("Touch: Reset\n");
+            hr = handle_touch_ack_cmd(&req);
+        }
+        else {
+            dprintf("Touchscreen: Unhandled cmd %s\n", (char *)req.cmd);
+            hr = handle_touch_ack_cmd(&req);
+        }
+
         return hr;
     }
 }
 
+static HRESULT handle_touch_ack_cmd(const struct touch_req *req)
+{
+    return iobuf_write(&touch_uart.readable, "\0010\015", 3);
+}
+
+static HRESULT handle_touch_name_cmd(const struct touch_req *req)
+{
+    dprintf("Touch: Get Name\n");
+    return iobuf_write(&touch_uart.readable, "\001EX1234 EX1234\015", 15);
+}
+
+static HRESULT handle_touch_id_cmd(const struct touch_req *req)
+{
+    dprintf("Touch: Get ID\n");
+    return iobuf_write(&touch_uart.readable, "\001EX1234\015", 8);
+}
+
+static void touch_scan_auto(const bool is_pressed, const uint32_t mouse_x, const uint32_t mouse_y)
+{
+    struct touch_auto_resp resp;
+    uint16_t tmp_x;
+    uint16_t tmp_y;
+    bool flg = false;
+
+    memset(&resp, 0, sizeof(resp));
+    resp.rep_id = 0x17;
+    resp.touches[0].status = 0x04;
+    resp.count = 1;
+
+    if (is_pressed) {
+        resp.touches[0].status = 0x07;
+        resp.touches[0].touch_id = 1;
+        tmp_x = mouse_x & 0x7FFF;
+        tmp_y = mouse_y & 0x7FFF;
+        
+        // flip
+        resp.touches[0].x = (tmp_x << 8) | (tmp_x >> 8);
+        resp.touches[0].y = (tmp_y << 8) | (tmp_y >> 8);
+
+        flg = resp.touches[0].x != last_x || resp.touches[0].y != last_y;
+
+#if 1
+        if (flg)
+            dprintf("Touch: Mouse down! x %04X y: %04X\n", resp.touches[0].x, resp.touches[0].y);
+#endif
+
+    
+        last_x = resp.touches[0].x;
+        last_y = resp.touches[0].y;
+
+    } else if (last_pressed) {
+        resp.touches[0].x = last_x;
+        resp.touches[0].y = last_y;
+    }
+
+    last_pressed = is_pressed;
+
+    EnterCriticalSection(&touch_lock);
+    iobuf_write(&touch_uart.readable, &resp, sizeof(resp));
+    LeaveCriticalSection(&touch_lock);
+
+#if 1
+    //if (flg) {        
+        dprintf("Touch: RX Buffer: (pos %08x)\n", (uint32_t)touch_uart.readable.pos);
+        dump_iobuf(&touch_uart.readable);
+    //}
+#endif
+}
+
 /* Decodes the response into a struct that's easier to work with. */
 static HRESULT touch_frame_decode(struct touch_req *dest, struct iobuf *iobuf)
 {
-    dest->cmd = iobuf->bytes[0];
+    dest->sync = iobuf->bytes[0];
-    iobuf->pos--;
+    memset(dest->cmd, 0, sizeof(dest->cmd));
-    dest->data_length = iobuf->pos;
+    size_t data_len = 0;
 
-    if (dest->data_length > 0) {
+    for (int i = 1; i < 255; i++) {
-        for (int i = 1; i < dest->data_length; i++) {
+        if (iobuf->bytes[i] == 0x0D) { break; }
-            dest->data[i-1] = iobuf->bytes[i];
+        dest->cmd[i - 1] = iobuf->bytes[i];
-        }
+        data_len++;
+    }
+
+    dest->tail = iobuf->bytes[data_len + 1];
+    dest->data_len = data_len;
+
+    iobuf->pos = 0;
+
+    if (dest->sync != 1 || dest->tail != 0x0D) {
+        dprintf("Touch: Data recieve error, sync: 0x%02X (expected 0x01) tail: 0x%02X (expected 0x0D)", dest->sync, dest->tail);
+        return E_FAIL;
     }
-    iobuf->pos -= dest->data_length;
 
     return S_OK;
 }

carolhook/touch.h

@@ -4,14 +4,35 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+#pragma pack(push, 1)
+
 struct touch_config {
     bool enable;
 };
 
+// Always starts with 0x01, always ends with 0x0D
 struct touch_req {
-    uint8_t cmd; // First byte is the command byte
+    uint8_t sync; // Always 0x01
-    uint8_t data[256]; // rest of the data goes here
+    uint8_t cmd[256]; // rest of the data goes here
-    uint8_t data_length; // Size of the data including command byte
+    uint8_t tail; // Always 0x0D
+    size_t data_len; // length of data
 };
 
+struct touch_report {
+    uint8_t status;
+    uint8_t touch_id;
+    uint16_t x;
+    uint16_t y;
+};
+
+struct touch_auto_resp {
+    uint8_t rep_id;
+    struct touch_report touches[10];
+    uint8_t count;
+    uint16_t scan_time;    
+    //uint8_t padding[456];
+};
+
+#pragma pack(pop)
+
 HRESULT touch_hook_init(const struct touch_config *cfg);

carolio/carolio.c

@@ -8,9 +8,13 @@
 #include "carolio/carolio.h"
 #include "carolio/config.h"
 
+static unsigned int __stdcall carol_io_touch_thread_proc(void *ctx);
+
 static bool carol_io_coin;
 static uint16_t carol_io_coins;
 static struct carol_io_config carol_io_cfg;
+static bool carol_io_touch_stop_flag;
+static HANDLE carol_io_touch_thread;
 
 uint16_t carol_io_get_api_version(void)
 {
@@ -73,7 +77,63 @@ HRESULT carol_io_touch_init()
     return S_OK;
 }
 
+HRESULT carol_io_ledbd_init()
+{
+    return S_OK;
+}
+
 HRESULT carol_io_controlbd_init()
 {
     return S_OK;
+}
+
+void carol_io_touch_start(carol_io_touch_callback_t callback)
+{
+    if (carol_io_touch_thread != NULL) {
+        return;
+    }
+
+    carol_io_touch_stop_flag = false;
+
+    carol_io_touch_thread = (HANDLE) _beginthreadex(
+        NULL,
+        0,
+        carol_io_touch_thread_proc,
+        callback,
+        0,
+        NULL
+    );
+}
+
+void carol_io_touch_stop()
+{
+    carol_io_touch_stop_flag = true;
+}
+
+static unsigned int __stdcall carol_io_touch_thread_proc(void *ctx)
+{
+    carol_io_touch_callback_t callback;
+    bool mouse_is_down = false;
+    uint32_t mX = 0;
+    uint32_t mY = 0;
+    POINT lpPoint;
+
+    callback = ctx;
+
+    while (!carol_io_touch_stop_flag) {
+        if (GetAsyncKeyState(VK_LBUTTON) & 0x8000) {
+            mouse_is_down = true;
+            if (GetCursorPos(&lpPoint)) {                
+                mX = lpPoint.x;
+                mY = lpPoint.y;
+            }
+        } else {
+            mouse_is_down = false;
+        }
+
+        callback(mouse_is_down, mX, mY);
+        Sleep(1);
+    }
+
+    return 0;
 }

carolio/carolio.h

@@ -5,6 +5,8 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+typedef void (*carol_io_touch_callback_t)(const bool is_pressed, const uint32_t mouse_x, const uint32_t mouse_y);
+
 /* Get the version of the Project carol 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
@@ -49,4 +51,10 @@ void carol_io_jvs_read_coin_counter(uint16_t *out);
 
 HRESULT carol_io_touch_init();
 
-HRESULT carol_io_controlbd_init();
+HRESULT carol_io_ledbd_init();
+
+HRESULT carol_io_controlbd_init();
+
+void carol_io_touch_start(carol_io_touch_callback_t callback);
+
+void carol_io_touch_stop();

docker-build.bat

@@ -2,7 +2,6 @@
 setlocal enabledelayedexpansion
 
 :: Static Environment Variables
-set BUILD_OUTPUT_PATH=build\docker
 set IMAGE_NAME=djhackers/segatools-build:latest
 set CONTAINER_NAME=segatools-build
 

hooklib/path.c

@@ -97,6 +97,10 @@ static BOOL WINAPI hook_RemoveDirectoryA(const char *lpFileName);
 
 static BOOL WINAPI hook_RemoveDirectoryW(const wchar_t *lpFileName);
 
+static BOOL WINAPI hook_PathFileExistsA(LPCSTR pszPath);
+
+static BOOL WINAPI hook_PathFileExistsW(LPCWSTR pszPath);
+
 /* Link pointers */
 
 static BOOL (WINAPI *next_CreateDirectoryA)(
@@ -177,6 +181,10 @@ static BOOL (WINAPI *next_RemoveDirectoryA)(const char *lpFileName);
 
 static BOOL (WINAPI *next_RemoveDirectoryW)(const wchar_t *lpFileName);
 
+static BOOL (WINAPI *next_PathFileExistsA)(LPCSTR pszPath);
+
+static BOOL (WINAPI *next_PathFileExistsW)(LPCWSTR pszPath);
+
 /* Hook table */
 
 static const struct hook_symbol path_hook_syms[] = {
@@ -244,6 +252,14 @@ static const struct hook_symbol path_hook_syms[] = {
         .name   = "RemoveDirectoryW",
         .patch  = hook_RemoveDirectoryW,
         .link   = (void **) &next_RemoveDirectoryW,
+    }, {
+        .name   = "PathFileExistsA",
+        .patch  = hook_PathFileExistsA,
+        .link   = (void **) &next_PathFileExistsA,
+    }, {
+        .name   = "PathFileExistsW",
+        .patch  = hook_PathFileExistsW,
+        .link   = (void **) &next_PathFileExistsW,
     }
 };
 
@@ -854,3 +870,39 @@ static BOOL WINAPI hook_RemoveDirectoryW(const wchar_t *lpFileName)
 
     return ok;
 }
+
+static BOOL WINAPI hook_PathFileExistsA(LPCSTR pszPath)
+{
+    char *trans;
+    BOOL ok;
+
+    ok = path_transform_a(&trans, pszPath);
+
+    if (!ok) {
+        return FALSE;
+    }
+
+    ok = next_PathFileExistsA(trans ? trans : pszPath);
+
+    free(trans);
+
+    return ok;
+}
+
+static BOOL WINAPI hook_PathFileExistsW(LPCWSTR pszPath)
+{
+    wchar_t *trans;
+    BOOL ok;
+
+    ok = path_transform_w(&trans, pszPath);
+
+    if (!ok) {
+        return FALSE;
+    }
+
+    ok = next_PathFileExistsW(trans ? trans : pszPath);
+
+    free(trans);
+
+    return ok;
+}

meson.build

@@ -13,6 +13,7 @@ add_project_arguments(
     '-DWIN32_LEAN_AND_MEAN',
     '-D_WIN32_WINNT=_WIN32_WINNT_WIN7',
     '-DMINGW_HAS_SECURE_API=1',
+    '-Wno-unused',
     language: 'c',
 )
 

platform/vfs.c

@@ -273,6 +273,8 @@ static HRESULT vfs_path_hook(const wchar_t *src, wchar_t *dest, size_t *count)
     }
 
     switch (src[0]) {
+    case L'D': // later AMDaemon versions default to D: for AMFS if it can't find it
+    case L'd':
     case L'e':
     case L'E':
         redir = vfs_config.amfs;
@@ -404,7 +406,7 @@ static HRESULT vfs_path_hook_option(
 
 static HRESULT vfs_reg_read_amfs(void *bytes, uint32_t *nbytes)
 {
-    return reg_hook_read_wstr(bytes, nbytes, vfs_config.amfs);
+    return reg_hook_read_wstr(bytes, nbytes, vfs_config.amfs); // seems to be busted?
 }
 
 static HRESULT vfs_reg_read_appdata(void *bytes, uint32_t *nbytes)