sdvxio-kfca: use cconfig instead of envvar

doc/sdvxhook/sdvxio-kfca.md

@@ -3,12 +3,14 @@ Thus, it allows you to use a KFCA device board with *any* version of SDVX that i
 
 # Setup
 * Rename sdvxio-kfca.dll to sdvxio.dll.
-* Ensure that your gamestart.bat actually injects the appropriate sdvxhook dll,
+* Ensure that your gamestart.bat actually injects the appropriate sdvxhook dll
 for example:
 ```
-launcher -K iidxhook2.dll soundvoltex.dll ...*
+launcher -K sdvxhook2.dll soundvoltex.dll ...*
 ```
+or that the application otherwise uses sdvxio.dll
+
 * sdvxio-kfca expects a KFCA device on COM3 by default
-* You can change the port by settings the SDVXIO_KFCA_PORT envvar
+* You can change the port and baudrate by editing the sdvxio-kfca.conf that should be created by default
 * If there is also an ICCA device on the same ACIO bus, it cannot be used with eamio-icca at this time
 * Please connect any additional acio devices to their own port (ex: SDVX5 expects an ICCA by itself on COM2)

src/main/sdvxio-kfca/Module.mk

@@ -3,8 +3,10 @@ dlls += sdvxio-kfca
 libs_sdvxio-kfca := \
     geninput \
     aciodrv \
+    cconfig \
     util \
 
 src_sdvxio-kfca	:= \
     sdvxio.c \
+    config-kfca.c \
 

src/main/sdvxio-kfca/config-kfca.c

@@ -0,0 +1,56 @@
+#include "cconfig/cconfig-util.h"
+
+#include "sdvxio-kfca/config-kfca.h"
+
+#include "util/log.h"
+
+SDVXIO_KFCA_CONFIG_KFCA_H
+#define SDVXIO_KFCA_CONFIG_KFCA_PORT_KEY "kfca.port"
+#define SDVXIO_KFCA_CONFIG_KFCA_BAUD_KEY "kfca.baud"
+
+#define SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_PORT_VALUE "COM3"
+#define SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_BAUD_VALUE 57600
+
+void sdvxio_kfca_config_kfca_init(struct cconfig *config)
+{
+    cconfig_util_set_str(
+        config,
+        SDVXIO_KFCA_CONFIG_KFCA_PORT_KEY,
+        SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_PORT_VALUE,
+        "KFCA ACIO serial port");
+
+    cconfig_util_set_int(
+        config,
+        SDVXIO_KFCA_CONFIG_KFCA_BAUD_KEY,
+        SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_BAUD_VALUE,
+        "KFCA ACIO bus baudrate (real devices expect 57600)");
+}
+
+void sdvxio_kfca_config_kfca_get(
+    struct sdvxio_kfca_config_kfca *config_kfca, struct cconfig *config)
+{
+    if (!cconfig_util_get_str(
+            config,
+            SDVXIO_KFCA_CONFIG_KFCA_PORT_KEY,
+            config_kfca->port,
+            sizeof(config_kfca->port) - 1,
+            SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_PORT_VALUE)) {
+        log_warning(
+            "Invalid value for key '%s' specified, fallback "
+            "to default '%s'",
+            SDVXIO_KFCA_CONFIG_KFCA_PORT_KEY,
+            SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_PORT_VALUE);
+    }
+
+    if (!cconfig_util_get_int(
+            config,
+            SDVXIO_KFCA_CONFIG_KFCA_BAUD_KEY,
+            &config_kfca->baud,
+            SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_BAUD_VALUE)) {
+        log_warning(
+            "Invalid value for key '%s' specified, fallback "
+            "to default '%d'",
+            SDVXIO_KFCA_CONFIG_KFCA_BAUD_KEY,
+            SDVXIO_KFCA_CONFIG_KFCA_DEFAULT_BAUD_VALUE);
+    }
+}

src/main/sdvxio-kfca/config-kfca.h

@@ -0,0 +1,18 @@
+#ifndef SDVXIO_KFCA_CONFIG_KFCA_H
+#define SDVXIO_KFCA_CONFIG_KFCA_H
+
+#include <windows.h>
+
+#include "cconfig/cconfig.h"
+
+struct sdvxio_kfca_config_kfca {
+    char port[64];
+    int32_t baud;
+};
+
+void sdvxio_kfca_config_kfca_init(struct cconfig *config);
+
+void sdvxio_kfca_config_kfca_get(
+    struct sdvxio_kfca_config_kfca *config_kfca, struct cconfig *config);
+
+#endif

src/main/sdvxio-kfca/sdvxio.c

@@ -6,9 +6,13 @@
 #include "bemanitools/glue.h"
 #include "bemanitools/sdvxio.h"
 
+#include "cconfig/cconfig-main.h"
+
 #include "aciodrv/device.h"
 #include "aciodrv/kfca.h"
 
+#include "sdvxio-kfca/config-kfca.h"
+
 #define LOG_MODULE "sdvxio-kfca"
 
 #define log_misc(...) sdvx_io_log_misc(LOG_MODULE, __VA_ARGS__)
@@ -48,16 +52,33 @@ bool sdvx_io_init(
     thread_join_t thread_join,
     thread_destroy_t thread_destroy)
 {
-    const char* default_port = "COM3";
-    const char* selected_port = getenv("SDVXIO_KFCA_PORT");
 
-    if (!selected_port) {
+    struct cconfig *config;
-        selected_port = default_port;
+    struct sdvxio_kfca_config_kfca config_kfca;
+
+    config = cconfig_init();
+
+    sdvxio_kfca_config_kfca_init(config);
+
+    if (!cconfig_main_config_init(
+            config,
+            "--kfca-config",
+            "sdvxio-kfca.conf",
+            "--help",
+            "-h",
+            "sdvxio-kfca",
+            CCONFIG_CMD_USAGE_OUT_STDOUT)) {
+        cconfig_finit(config);
+        exit(EXIT_FAILURE);
     }
 
-    if (!aciodrv_device_open(selected_port, 57600)) {
+    sdvxio_kfca_config_kfca_get(&config_kfca, config);
-        log_info("Opening acio device on [%s] failed", selected_port);
+
-        return -1;
+    cconfig_finit(config);
+
+    if (!aciodrv_device_open(config_kfca.port, config_kfca.baud)) {
+        log_info("Opening acio device on [%s] failed", config_kfca.port);
+        return 0;
     }
 
     log_info("Opening acio device successful");