sdvxio-bio2: Add sdvxio BIO2 along with bio2drv and aciotest updates

Module.mk

@@ -78,6 +78,7 @@ include src/main/aciodrv/Module.mk
 include src/main/acioemu/Module.mk
 include src/main/aciotest/Module.mk
 include src/main/asio/Module.mk
+include src/main/bio2drv/Module.mk
 include src/main/bio2emu/Module.mk
 include src/main/bio2emu-iidx/Module.mk
 include src/main/bsthook/Module.mk
@@ -142,6 +143,7 @@ include src/main/sdvxhook2/Module.mk
 include src/main/sdvxhook2-cn/Module.mk
 include src/main/sdvxio/Module.mk
 include src/main/sdvxio-kfca/Module.mk
+include src/main/sdvxio-bio2/Module.mk
 include src/main/security/Module.mk
 include src/main/unicorntail/Module.mk
 include src/main/util/Module.mk
@@ -416,6 +418,7 @@ $(zipdir)/sdvx-01-to-04.zip: \
 		build/bin/indep-32/geninput.dll \
 		build/bin/indep-32/sdvxio.dll \
 		build/bin/indep-32/sdvxio-kfca.dll \
+		build/bin/indep-32/sdvxio-bio2.dll \
 		dist/sdvx/config.bat \
 		dist/sdvx/gamestart.bat \
 		| $(zipdir)/
@@ -430,6 +433,7 @@ $(zipdir)/sdvx-05.zip: \
 		build/bin/indep-64/geninput.dll \
 		build/bin/indep-64/sdvxio.dll \
 		build/bin/indep-64/sdvxio-kfca.dll \
+		build/bin/indep-64/sdvxio-bio2.dll \
 		dist/sdvx5/config.bat \
 		dist/sdvx5/gamestart.bat \
 		dist/sdvx5/sdvxhook2.conf \

src/main/aciotest/Module.mk

@@ -1,10 +1,12 @@
 exes            += aciotest
 
 libs_aciotest     := \
+    bio2drv \
     aciodrv \
     util \
 
 src_aciotest      := \
     icca.c \
     kfca.c \
+    bi2a-sdvx.c \
     main.c \

src/main/aciotest/bi2a-sdvx.c

@@ -0,0 +1,58 @@
+#include "aciotest/bi2a-sdvx.h"
+
+#include "acio/acio.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bio2drv/bi2a-sdvx.h"
+
+bool aciotest_bi2a_sdvx_handler_init(uint8_t node_id, void **ctx)
+{
+    *ctx = malloc(sizeof(uint32_t));
+    *((uint32_t *) *ctx) = 0;
+
+    return bio2drv_bi2a_sdvx_init(node_id);
+}
+
+bool aciotest_bi2a_sdvx_handler_update(uint8_t node_id, void *ctx)
+{
+    struct bi2a_sdvx_state_in pin;
+    struct bi2a_sdvx_state_out pout;
+
+    memset(&pout, 0, sizeof(pout));
+
+    if (!bio2drv_bi2a_sdvx_poll(node_id, &pout, &pin)) {
+        return false;
+    }
+
+    
+    pin.raw[0] = ac_io_u16(pin.raw[0]);
+    pin.raw[1] = ac_io_u16(pin.raw[1]);
+
+    printf(
+        ">>> BI2A (SDVX) %d:\n"
+        "BTN A B C D: %d %d %d %d\n"
+        "FX-L R: %d %d\n"
+        "VOL L: %d\n"
+        "VOL R: %d\n"
+        "START COIN TEST SERV REC HP: %d %d %d %d %d %d\n",
+        node_id,
+        pin.buttons_1.b_a,
+        pin.buttons_1.b_b,
+        pin.buttons_1.b_c,
+        pin.buttons_1.b_d,
+        pin.buttons_1.b_fxl,
+        pin.buttons_2.b_fxr,
+        pin.analogs[0].a_val,
+        pin.analogs[1].a_val,
+        pin.buttons_1.b_start,
+        pin.analogs[0].a_coin,
+        pin.analogs[0].a_test,
+        pin.analogs[0].a_service,
+        pin.buttons_1.b_recorder,
+        pin.buttons_1.b_headphone);
+
+    return true;
+}

src/main/aciotest/bi2a-sdvx.h

@@ -0,0 +1,10 @@
+#ifndef ACIOTEST_BI2A_SDVX_H
+#define ACIOTEST_BI2A_SDVX_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+bool aciotest_bi2a_sdvx_handler_init(uint8_t node_id, void **ctx);
+bool aciotest_bi2a_sdvx_handler_update(uint8_t node_id, void *ctx);
+
+#endif

src/main/aciotest/main.c

@@ -9,10 +9,12 @@
 #include "aciotest/handler.h"
 #include "aciotest/icca.h"
 #include "aciotest/kfca.h"
+#include "aciotest/bi2a-sdvx.h"
 
 #include "util/log.h"
 
 static uint8_t aciotest_cnt = 0;
+static uint8_t bi2a_mode = 0;
 
 /**
  * Enumerate supported ACIO nodes based on their product id.
@@ -35,6 +37,17 @@ static bool aciotest_assign_handler(
         return true;
     }
 
+    if (!memcmp(product, "BI2A", 4)) {
+        if (bi2a_mode == 0) {
+            handler->init = aciotest_bi2a_sdvx_handler_init;
+            handler->update = aciotest_bi2a_sdvx_handler_update;
+
+            return true;
+        } else {
+            printf("Unknown BI2A device specified");
+        }
+    }
+
     return false;
 }
 
@@ -125,7 +138,7 @@ int main(int argc, char **argv)
         }
 
         /* avoid cpu banging */
-        Sleep(20);
+        Sleep(30);
     }
 
     return 0;

src/main/bio2drv/Module.mk

@@ -0,0 +1,9 @@
+libs            += bio2drv
+
+libs_bio2drv     := \
+    aciodrv
+
+src_bio2drv     := \
+    detect.c \
+    config-bio2.c \
+    bi2a-sdvx.c \

src/main/bio2drv/bi2a-sdvx.c

@@ -0,0 +1,138 @@
+#define LOG_MODULE "bio2drv-bi2a_sdvx"
+
+#include "bio2drv/bi2a-sdvx.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "aciodrv/device.h"
+
+#include "util/log.h"
+
+// this is probably InitIO
+static bool bio2drv_bi2a_sdvx_init_io(uint8_t node_id)
+{
+    struct ac_io_message msg;
+
+    msg.addr = node_id + 1;
+    msg.cmd.code = ac_io_u16(AC_IO_CMD_CLEAR);
+    msg.cmd.nbytes = 1;
+    msg.cmd.count = 0x3B;
+
+    if (!aciodrv_send_and_recv(
+            &msg, offsetof(struct ac_io_message, cmd.raw) + 1)) {
+        log_warning("Init node failed");
+        return 0;
+    }
+
+    log_warning("Init of node %d, status: %d", node_id, msg.cmd.status);
+
+    return 1;
+}
+
+static bool bio2drv_bi2a_sdvx_watchdog_start(uint8_t node_id)
+{
+    // exit early and don't actually call watchdog
+    // the watchdog call actually returns different sized packets depending on
+    // the state this results in an issue during packet processing (see: #68)
+    return true;
+
+    /*
+    struct ac_io_message msg;
+
+    msg.addr = node_id + 1;
+    msg.cmd.code = ac_io_u16(AC_IO_CMD_KFCA_WATCHDOG);
+    msg.cmd.nbytes = 2;
+    msg.cmd.nbytes = 2;
+
+    // uint16_t: 6000
+    msg.cmd.raw[0] = 23;
+    msg.cmd.raw[1] = 112;
+
+    if (!aciodrv_send_and_recv(
+        &msg, offsetof(struct ac_io_message, cmd.raw) + 2
+    )) {
+        log_warning("Starting watchdog failed"); return false;
+    }
+
+    log_warning("Started watchdog of node %d, status: %d",
+        node_id, msg.cmd.status);
+
+    return true;
+    */
+}
+
+bool bio2drv_bi2a_sdvx_amp(
+    uint8_t node_id,
+    uint8_t unused_1,
+    uint8_t unused_2,
+    uint8_t left,
+    uint8_t right)
+{
+    struct ac_io_message msg;
+
+    msg.addr = node_id + 1;
+    msg.cmd.code = ac_io_u16(AC_IO_CMD_KFCA_AMP_CONTROL);
+    msg.cmd.nbytes = 4;
+
+    // the BIO2 DOES NOT MATCH THE KFCA for what these mean
+    // 0 and 1 are ignored, 2 and 3 seem to map to left/right for ALL 3 AMPS
+    // in the future, maybe use windows APIs and write the volume levels there
+    msg.cmd.raw[0] = unused_1;
+    msg.cmd.raw[1] = unused_2;
+    msg.cmd.raw[2] = left;
+    msg.cmd.raw[3] = right;
+
+    if (!aciodrv_send_and_recv(
+            &msg, offsetof(struct ac_io_message, cmd.raw) + 1)) {
+        log_warning("Setting AMP failed");
+        return false;
+    }
+
+    log_warning("Started AMP node %d", node_id);
+
+    return true;
+}
+
+bool bio2drv_bi2a_sdvx_init(uint8_t node_id)
+{
+    if (!bio2drv_bi2a_sdvx_init_io(node_id)) {
+        return false;
+    }
+
+    if (!bio2drv_bi2a_sdvx_watchdog_start(node_id)) {
+        return false;
+    }
+
+    if (!bio2drv_bi2a_sdvx_amp(node_id, 0, 0, 0, 0)) {
+        return false;
+    }
+
+    return true;
+}
+
+bool bio2drv_bi2a_sdvx_poll(
+    uint8_t node_id,
+    const struct bi2a_sdvx_state_out *pout,
+    struct bi2a_sdvx_state_in *pin)
+{
+    struct ac_io_message msg;
+
+    msg.addr = node_id + 1;
+    msg.cmd.code = ac_io_u16(AC_IO_CMD_KFCA_POLL);
+    msg.cmd.nbytes = sizeof(*pout);
+    /* buffer size of data we expect */
+    *(struct bi2a_sdvx_state_out *) msg.cmd.raw = *pout;
+
+    if (!aciodrv_send_and_recv(
+            &msg, offsetof(struct ac_io_message, cmd.raw) + sizeof(*pin))) {
+        log_warning("Polling of node %d failed", node_id + 1);
+        return false;
+    }
+
+    if (pin != NULL) {
+        memcpy(pin, &msg.cmd.raw, sizeof(*pin));
+    }
+
+    return true;
+}

src/main/bio2drv/bi2a-sdvx.h

@@ -0,0 +1,51 @@
+#ifndef BIO2DRV_BI2A_H
+#define BIO2DRV_BI2A_H
+
+#include "bio2/bi2a-sdvx.h"
+
+/**
+ * Initialize a BI2A node.
+ *
+ * @param node_id Id of the node to initialize (0 based).
+ * @return True if successful, false on error.
+ * @note This module is supposed to be used in combination with the common
+ *       device driver foundation.
+ * @see driver.h
+ */
+bool bio2drv_bi2a_sdvx_init(uint8_t node_id);
+
+/**
+ * Poll the  board
+ *
+ * @param node_id Id of the node to query (0 based).
+ * @param state Pointer to a state struct to return the current state to
+ *        (optional, NULL for none).
+ * @return True on success, false on error.
+ * @note This module is supposed to be used in combination with the common
+ *       device driver foundation.
+ * @see driver.h
+ */
+bool bio2drv_bi2a_sdvx_poll(
+    uint8_t node_id,
+    const struct bi2a_sdvx_state_out *pout,
+    struct bi2a_sdvx_state_in *pin);
+
+/**
+ * Set the BIO2 BI2A SDVX digital amp level
+ *
+ * @param node_id Id of the node to query (0 based).
+ * @param primary primary volume (96-0)
+ * @param headphone headphone volume (96-0)
+ * @param unused unknown volume (96-0) (unused)
+ * @param subwoofer subwoofer volume (96-0)
+ * @return True on success, false on error.
+ * @note Note 96 is lowest volume level, 0 is highest
+ */
+bool bio2drv_bi2a_sdvx_amp(
+    uint8_t node_id,
+    uint8_t unused_1,
+    uint8_t unused_2,
+    uint8_t left,
+    uint8_t right);
+
+#endif

src/main/bio2drv/config-bio2.c

@@ -0,0 +1,75 @@
+#include "cconfig/cconfig-util.h"
+
+#include "bio2drv/config-bio2.h"
+
+#include "util/log.h"
+
+#define BIO2DRV_CONFIG_BIO2_AUTO_KEY "bio2.autodetect"
+#define BIO2DRV_CONFIG_BIO2_PORT_KEY "bio2.port"
+#define BIO2DRV_CONFIG_BIO2_BAUD_KEY "bio2.baud"
+
+#define BIO2DRV_CONFIG_BIO2_DEFAULT_AUTO_VALUE true
+#define BIO2DRV_CONFIG_BIO2_DEFAULT_PORT_VALUE "COM4"
+#define BIO2DRV_CONFIG_BIO2_DEFAULT_BAUD_VALUE 115200
+
+void bio2drv_config_bio2_init(struct cconfig *config)
+{
+    cconfig_util_set_bool(
+        config,
+        BIO2DRV_CONFIG_BIO2_AUTO_KEY,
+        BIO2DRV_CONFIG_BIO2_DEFAULT_AUTO_VALUE,
+        "Autodetect BIO2 port (default: on)");
+
+    cconfig_util_set_str(
+        config,
+        BIO2DRV_CONFIG_BIO2_PORT_KEY,
+        BIO2DRV_CONFIG_BIO2_DEFAULT_PORT_VALUE,
+        "BIO2 serial port");
+
+    cconfig_util_set_int(
+        config,
+        BIO2DRV_CONFIG_BIO2_BAUD_KEY,
+        BIO2DRV_CONFIG_BIO2_DEFAULT_BAUD_VALUE,
+        "BIO2 bus baudrate (real devices expect 115200)");
+}
+
+void bio2drv_config_bio2_get(
+    struct bio2drv_config_bio2 *config_bio2, struct cconfig *config)
+{
+    if (!cconfig_util_get_bool(
+            config,
+            BIO2DRV_CONFIG_BIO2_AUTO_KEY,
+            &config_bio2->autodetect,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_AUTO_VALUE)) {
+        log_warning(
+            "Invalid value for key '%s' specified, fallback "
+            "to default '%d'",
+            BIO2DRV_CONFIG_BIO2_AUTO_KEY,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_AUTO_VALUE);
+    }
+
+    if (!cconfig_util_get_str(
+            config,
+            BIO2DRV_CONFIG_BIO2_PORT_KEY,
+            config_bio2->port,
+            sizeof(config_bio2->port) - 1,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_PORT_VALUE)) {
+        log_warning(
+            "Invalid value for key '%s' specified, fallback "
+            "to default '%s'",
+            BIO2DRV_CONFIG_BIO2_PORT_KEY,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_PORT_VALUE);
+    }
+
+    if (!cconfig_util_get_int(
+            config,
+            BIO2DRV_CONFIG_BIO2_BAUD_KEY,
+            &config_bio2->baud,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_BAUD_VALUE)) {
+        log_warning(
+            "Invalid value for key '%s' specified, fallback "
+            "to default '%d'",
+            BIO2DRV_CONFIG_BIO2_BAUD_KEY,
+            BIO2DRV_CONFIG_BIO2_DEFAULT_BAUD_VALUE);
+    }
+}

src/main/bio2drv/config-bio2.h

@@ -0,0 +1,19 @@
+#ifndef BIO2DRV_CONFIG_BIO2_H
+#define BIO2DRV_CONFIG_BIO2_H
+
+#include <windows.h>
+
+#include "cconfig/cconfig.h"
+
+struct bio2drv_config_bio2 {
+    bool autodetect;
+    char port[64];
+    int32_t baud;
+};
+
+void bio2drv_config_bio2_init(struct cconfig *config);
+
+void bio2drv_config_bio2_get(
+    struct bio2drv_config_bio2 *config_bio2, struct cconfig *config);
+
+#endif

src/main/bio2drv/detect.c

@@ -0,0 +1,163 @@
+#define LOG_MODULE "bio2drv-detect"
+
+#include <initguid.h>
+#include <windows.h>
+
+#include <cfgmgr32.h>
+#include <setupapi.h>
+
+#include "bio2drv/detect.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "util/log.h"
+
+DEFINE_GUID(
+    GUID_COM_BUS_ENUMERATOR,
+    0x4D36E978,
+    0xE325,
+    0x11CE,
+    0xBF,
+    0xC1,
+    0x08,
+    0x00,
+    0x2B,
+    0xE1,
+    0x03,
+    0x18);
+
+static char work_buffer[0x400];
+
+static bool check_property(
+    HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA PDeviceInfoData, DWORD property)
+{
+    if (SetupDiGetDeviceRegistryPropertyA(
+            DeviceInfoSet,
+            PDeviceInfoData,
+            property,
+            NULL,
+            (BYTE *) work_buffer,
+            sizeof(work_buffer),
+            NULL)) {
+        if (strstr(work_buffer, "BIO2(VIDEO)")) {
+            log_info("Found matching device: %s", work_buffer);
+            return true;
+        }
+    }
+
+    log_info("Device with property: %s does not match", work_buffer);
+    return false;
+}
+
+static bool check_id(
+    HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA PDeviceInfoData)
+{
+    if (CM_Get_Device_IDA(PDeviceInfoData->DevInst, work_buffer, sizeof(work_buffer), 0)) {
+        return false;
+    }
+
+    if (strstr(work_buffer, "VID_1CCF&PID_804C")) {
+        log_info("Found matching device: %s", work_buffer);
+        return true;
+    }
+
+    if (strstr(work_buffer, "VID_1CCF&PID_8040")) {
+        log_info("Found matching device: %s", work_buffer);
+        return true;
+    }
+
+    log_info("Device with ID: %s does not match", work_buffer);
+    return false;
+}
+
+static bool get_device_by_filter(
+    bool id_filter, DWORD property, size_t devnum, char *path, size_t length)
+{
+    HDEVINFO DeviceInfoSet = SetupDiGetClassDevsA(
+        &GUID_COM_BUS_ENUMERATOR, NULL, NULL, DIGCF_PRESENT);
+
+    if (DeviceInfoSet == INVALID_HANDLE_VALUE) {
+        return false;
+    }
+
+    SP_DEVINFO_DATA DeviceInfoData;
+    ZeroMemory(&DeviceInfoData, sizeof(SP_DEVINFO_DATA));
+    DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
+
+    DWORD idx = 0;
+    size_t num_found = 0;
+
+    while (SetupDiEnumDeviceInfo(DeviceInfoSet, idx, &DeviceInfoData)) {
+        HKEY DeviceRegKey = SetupDiOpenDevRegKey(
+            DeviceInfoSet,
+            &DeviceInfoData,
+            DICS_FLAG_GLOBAL,
+            0,
+            DIREG_DEV,
+            KEY_QUERY_VALUE);
+
+        if (DeviceRegKey) {
+            bool found = false;
+            log_info("Found a serial device at index: %d", idx);
+
+            if (!id_filter) {
+                if (check_property(DeviceInfoSet, &DeviceInfoData, property)) {
+                    found = true;
+                }
+            } else {
+                if (check_id(DeviceInfoSet, &DeviceInfoData)) {
+                    found = true;
+                }
+            }
+
+            if (found) {
+                if (num_found == devnum) {
+                    DWORD path_length = length;
+                    RegQueryValueExA(
+                        DeviceRegKey,
+                        "PortName",
+                        0,
+                        NULL,
+                        (BYTE *) path,
+                        &path_length);
+                    log_info("Using port: %s", path);
+
+                    return true;
+                }
+                num_found++;
+            }
+        }
+        ++idx;
+    }
+    SetupDiDestroyDeviceInfoList(DeviceInfoSet);
+
+    log_warning("No matching device found");
+    return false;
+}
+
+void bio2drv_set_loggers(
+    log_formatter_t misc,
+    log_formatter_t info,
+    log_formatter_t warning,
+    log_formatter_t fatal)
+{
+    log_to_external(misc, info, warning, fatal);
+}
+
+bool bio2drv_detect(
+    enum bio2drv_detect_mode mode, size_t index, char *path, size_t length)
+{
+    if (mode == DETECT_DEVICEDESC) {
+        return get_device_by_filter(
+            false, SPDRP_DEVICEDESC, index, path, length);
+    } else if (mode == DETECT_FRIENDLYNAME) {
+        return get_device_by_filter(
+            false, SPDRP_FRIENDLYNAME, index, path, length);
+    } else if (mode == DETECT_DEVICEID) {
+        return get_device_by_filter(true, -1, index, path, length);
+    }
+
+    log_warning("Unknown autodetect mode: %d", mode);
+    return false;
+}

src/main/bio2drv/detect.h

@@ -0,0 +1,23 @@
+#ifndef BIO2DRV_DETECT_H
+#define BIO2DRV_DETECT_H
+
+#include <stdbool.h>
+
+#include "bemanitools/glue.h"
+
+enum bio2drv_detect_mode {
+    DETECT_DEVICEDESC = 0x1, // look for serial devices containing BIO2(VIDEO)
+    DETECT_FRIENDLYNAME = 0x2, // look for serial devices containing BIO2(VIDEO)
+    DETECT_DEVICEID = 0x3, // look for serial devices by vid/pid
+};
+
+void bio2drv_set_loggers(
+    log_formatter_t misc,
+    log_formatter_t info,
+    log_formatter_t warning,
+    log_formatter_t fatal);
+
+bool bio2drv_detect(
+    enum bio2drv_detect_mode mode, size_t devnum, char *path, size_t length);
+
+#endif

src/main/sdvxio-bio2/Module.mk

@@ -0,0 +1,14 @@
+dlls += sdvxio-bio2
+
+ldflags_sdvxio-bio2   := \
+    -lsetupapi \
+
+libs_sdvxio-bio2 := \
+    aciodrv \
+    bio2drv \
+    cconfig \
+    util \
+
+src_sdvxio-bio2	:= \
+    sdvxio.c \
+

src/main/sdvxio-bio2/sdvxio-bio2.def

@@ -0,0 +1,15 @@
+LIBRARY sdvxio-bio2
+
+EXPORTS
+    sdvx_io_fini
+    sdvx_io_get_input_gpio
+    sdvx_io_get_input_gpio_sys
+    sdvx_io_get_spinner_pos
+    sdvx_io_init
+    sdvx_io_read_input
+    sdvx_io_set_gpio_lights
+    sdvx_io_set_loggers
+    sdvx_io_set_pwm_light
+    sdvx_io_write_output
+    sdvx_io_set_amp_volume
+    _bio2_sdvx_io_poll

src/main/sdvxio-bio2/sdvxio.c

@@ -0,0 +1,324 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "bemanitools/glue.h"
+#include "bemanitools/sdvxio.h"
+
+#include "cconfig/cconfig-main.h"
+
+#include "aciodrv/device.h"
+#include "bio2drv/bi2a-sdvx.h"
+#include "bio2drv/config-bio2.h"
+#include "bio2drv/detect.h"
+
+#define LOG_MODULE "sdvxio-bio2"
+
+#define log_misc(...) sdvx_io_log_misc(LOG_MODULE, __VA_ARGS__)
+#define log_info(...) sdvx_io_log_info(LOG_MODULE, __VA_ARGS__)
+#define log_warning(...) sdvx_io_log_warning(LOG_MODULE, __VA_ARGS__)
+#define log_fatal(...) sdvx_io_log_fatal(LOG_MODULE, __VA_ARGS__)
+
+static log_formatter_t sdvx_io_log_misc;
+static log_formatter_t sdvx_io_log_info;
+static log_formatter_t sdvx_io_log_warning;
+static log_formatter_t sdvx_io_log_fatal;
+
+static uint16_t sdvx_io_gpio[2];
+static uint8_t sdvx_io_gpio_sys;
+static uint16_t sdvx_io_analog[2];
+
+static char autodetect_buffer[512];
+
+static bool running;
+static bool processing_io;
+static int16_t bio2_node_id;
+
+uint8_t wing_staging[12];
+struct bi2a_sdvx_state_out pout_staging;
+struct bi2a_sdvx_state_out pout_ready;
+
+void sdvx_io_set_loggers(
+    log_formatter_t misc,
+    log_formatter_t info,
+    log_formatter_t warning,
+    log_formatter_t fatal)
+{
+    sdvx_io_log_misc = misc;
+    sdvx_io_log_info = info;
+    sdvx_io_log_warning = warning;
+    sdvx_io_log_fatal = fatal;
+
+    bio2drv_set_loggers(misc, info, warning, fatal);
+}
+
+bool sdvx_io_init(
+    thread_create_t thread_create,
+    thread_join_t thread_join,
+    thread_destroy_t thread_destroy)
+{
+
+    struct cconfig *config;
+    struct bio2drv_config_bio2 config_bio2;
+
+    config = cconfig_init();
+
+    bio2drv_config_bio2_init(config);
+
+    if (!cconfig_main_config_init(
+            config,
+            "--bio2-config",
+            "sdvxio-bio2.conf",
+            "--help",
+            "-h",
+            "sdvxio-bio2",
+            CCONFIG_CMD_USAGE_OUT_STDOUT)) {
+        cconfig_finit(config);
+        exit(EXIT_FAILURE);
+    }
+
+    bio2drv_config_bio2_get(&config_bio2, config);
+
+    cconfig_finit(config);
+
+    const char *selected_port = config_bio2.port;
+
+    if (config_bio2.autodetect) {
+        log_info("Attempting autodetect");
+
+        if (bio2drv_detect(
+                DETECT_DEVICEID,
+                0,
+                autodetect_buffer,
+                sizeof(autodetect_buffer))) {
+            selected_port = autodetect_buffer;
+        } else {
+            log_info("Autodetect failed, falling back to using specified port");
+        }
+    }
+
+    if (!aciodrv_device_open(selected_port, config_bio2.baud)) {
+        log_info("Opening BIO2 device on [%s] failed", selected_port);
+        return 0;
+    }
+
+    log_info("Opening BIO2 device on [%s] successful", selected_port);
+
+    uint8_t node_count = aciodrv_device_get_node_count();
+    log_info("Enumerated %d nodes", node_count);
+
+    bio2_node_id = -1;
+
+    for (uint8_t i = 0; i < node_count; i++) {
+        char product[4];
+        aciodrv_device_get_node_product_ident(i, product);
+        log_info(
+            "> %d: %c%c%c%c\n",
+            i,
+            product[0],
+            product[1],
+            product[2],
+            product[3]);
+
+        if (!memcmp(product, "BI2A", 4)) {
+            if (bio2_node_id != -1) {
+                log_warning("Multiple BI2A found! Using highest node id.");
+            }
+            bio2_node_id = i;
+        }
+    }
+
+    if (bio2_node_id != -1) {
+        log_warning("Using BI2A on node: %d", bio2_node_id);
+
+        if (!bio2drv_bi2a_sdvx_init(bio2_node_id)) {
+            log_warning("Unable to start BI2A on node: %d", bio2_node_id);
+            return false;
+        }
+
+        running = true;
+        log_warning("sdvxio-bio2 now running");
+    } else {
+        log_warning("No KFCA device found");
+    }
+
+    return running;
+}
+
+void sdvx_io_fini(void)
+{
+    running = false;
+    while (processing_io) {
+    }
+}
+
+static uint8_t assign_light(uint32_t gpio_lights, uint32_t shift)
+{
+    uint32_t shifted = (1 << shift);
+
+    if ((gpio_lights & shifted) == shifted) {
+        return 255;
+    }
+
+    return 0;
+}
+
+void sdvx_io_set_gpio_lights(uint32_t gpio_lights)
+{
+    pout_staging.gpio[0] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_START);
+    pout_staging.gpio[1] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_A);
+    pout_staging.gpio[2] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_B);
+    pout_staging.gpio[3] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_C);
+    pout_staging.gpio[4] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_D);
+    pout_staging.gpio[5] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_FX_L);
+    pout_staging.gpio[6] = assign_light(gpio_lights, SDVX_IO_OUT_GPIO_FX_R);
+}
+
+void sdvx_io_set_pwm_light(uint8_t light_no, uint8_t intensity)
+{
+    if (light_no < 12) {
+        wing_staging[light_no] = intensity;
+    } else {
+        switch (light_no) {
+            case 12:
+                pout_staging.woof_r = intensity;
+                break;
+            case 13:
+                pout_staging.woof_g = intensity;
+                break;
+            case 14:
+                pout_staging.woof_b = intensity;
+                break;
+            case 15:
+                pout_staging.controller[0] = intensity;
+                break;
+            case 16:
+                pout_staging.controller[1] = intensity;
+                break;
+            case 17:
+                pout_staging.controller[2] = intensity;
+                break;
+            default:
+                break;
+        }
+    }
+}
+
+bool sdvx_io_write_output(void)
+{
+    memcpy(&pout_ready, &pout_staging, sizeof(struct bi2a_sdvx_state_out));
+    pout_ready.wingUpper[0] = wing_staging[0] / 2 + wing_staging[3] / 2;
+    pout_ready.wingUpper[1] = wing_staging[1] / 2 + wing_staging[4] / 2;
+    pout_ready.wingUpper[2] = wing_staging[2] / 2 + wing_staging[5] / 2;
+
+    pout_ready.wingLower[0] = wing_staging[6] / 2 + wing_staging[9] / 2;
+    pout_ready.wingLower[1] = wing_staging[7] / 2 + wing_staging[10] / 2;
+    pout_ready.wingLower[2] = wing_staging[8] / 2 + wing_staging[11] / 2;
+
+    return true;
+}
+
+static uint8_t shift_pin(uint16_t value, uint8_t pin)
+{
+    if (value) {
+        return (1 << pin);
+    }
+
+    return 0;
+}
+
+bool _bio2_sdvx_io_poll(
+    const struct bi2a_sdvx_state_out *pout, struct bi2a_sdvx_state_in *pin)
+{
+    if (!running) {
+        return false;
+    }
+
+    processing_io = true;
+
+    if (!bio2drv_bi2a_sdvx_poll(bio2_node_id, pout, pin)) {
+        processing_io = false;
+        return false;
+    }
+
+    processing_io = false;
+    return true;
+}
+
+bool sdvx_io_read_input(void)
+{
+    struct bi2a_sdvx_state_in pin;
+
+    if (!_bio2_sdvx_io_poll(&pout_ready, &pin)) {
+        return false;
+    }
+
+    pin.raw[0] = ac_io_u16(pin.raw[0]);
+    pin.raw[1] = ac_io_u16(pin.raw[1]);
+
+    sdvx_io_analog[0] = pin.analogs[0].a_val;
+    sdvx_io_analog[1] = pin.analogs[1].a_val;
+
+    sdvx_io_gpio_sys = 0;
+    sdvx_io_gpio_sys |=
+        shift_pin(pin.analogs[0].a_coin, SDVX_IO_IN_GPIO_SYS_COIN);
+    sdvx_io_gpio_sys |=
+        shift_pin(pin.analogs[0].a_test, SDVX_IO_IN_GPIO_SYS_TEST);
+    sdvx_io_gpio_sys |=
+        shift_pin(pin.analogs[0].a_service, SDVX_IO_IN_GPIO_SYS_SERVICE);
+
+    sdvx_io_gpio[0] = 0;
+    sdvx_io_gpio[1] = 0;
+
+    sdvx_io_gpio[0] |=
+        shift_pin(pin.buttons_1.b_start, SDVX_IO_IN_GPIO_0_START);
+    sdvx_io_gpio[0] |=
+        shift_pin(pin.buttons_1.b_headphone, SDVX_IO_IN_GPIO_0_HEADPHONE);
+    sdvx_io_gpio[0] |= shift_pin(pin.buttons_1.b_a, SDVX_IO_IN_GPIO_0_A);
+    sdvx_io_gpio[0] |= shift_pin(pin.buttons_1.b_b, SDVX_IO_IN_GPIO_0_B);
+    sdvx_io_gpio[0] |= shift_pin(pin.buttons_1.b_c, SDVX_IO_IN_GPIO_0_C);
+    sdvx_io_gpio[1] |= shift_pin(pin.buttons_1.b_d, SDVX_IO_IN_GPIO_1_D);
+    sdvx_io_gpio[1] |= shift_pin(pin.buttons_1.b_fxl, SDVX_IO_IN_GPIO_1_FX_L);
+    sdvx_io_gpio[1] |= shift_pin(pin.buttons_2.b_fxr, SDVX_IO_IN_GPIO_1_FX_R);
+
+    return true;
+}
+
+uint8_t sdvx_io_get_input_gpio_sys(void)
+{
+    return sdvx_io_gpio_sys;
+}
+
+uint16_t sdvx_io_get_input_gpio(uint8_t gpio_bank)
+{
+    if (gpio_bank > 1) {
+        return 0;
+    }
+
+    return sdvx_io_gpio[gpio_bank];
+}
+
+uint16_t sdvx_io_get_spinner_pos(uint8_t spinner_no)
+{
+    if (spinner_no >= 2) {
+        return 0;
+    }
+    return sdvx_io_analog[spinner_no];
+}
+
+bool sdvx_io_set_amp_volume(
+    uint8_t primary, uint8_t headphone, uint8_t subwoofer)
+{
+    if (!running) {
+        return false;
+    }
+
+    // yes, the BIO2 doesn't allow control of the amps individually
+    // so let's just set it so that people's ear's don't blow out
+    if (!bio2drv_bi2a_sdvx_amp(bio2_node_id, 0, 0, primary, primary)) {
+        return false;
+    }
+
+    return true;
+}