devices utility app

devices/devices.c

@@ -0,0 +1,50 @@
+#include <device_info.h>
+#include <devices.h>
+#include <malloc.h>
+#include <mprintf.h>
+#include <process_self.h>
+#include <status.h>
+#include <string.h>
+#include <system.h>
+
+static const char* device_types_str[] = {
+    [DEVICE_TYPE_DEBUGCONSOLE] = "Debug console", [DEVICE_TYPE_TERMINAL] = "System terminal",
+    [DEVICE_TYPE_KEYBOARD] = "Keyboard",          [DEVICE_TYPE_DRIVE] = "Drive",
+    [DEVICE_TYPE_USB_CTRL] = "USB controller",
+};
+
+static void list_all_devices (void) {
+  struct device_info* infos = malloc (sizeof (struct device_info) * 1024);
+  memset (infos, 0, sizeof (struct device_info) * 1024);
+
+  int device_count = get_device_info (infos, 1024);
+
+  mprintf ("%-30s %-20s\n", "NAME", "TYPE");
+  for (int dev = 0; dev < device_count; dev++) {
+    struct device_info* info = &infos[dev];
+
+    mprintf ("%-30s %-20s\n", info->key, device_types_str[info->type]);
+  }
+}
+
+void app_main (void) {
+  libprocess_self_init ();
+
+  char commandbuf[32];
+  memset (commandbuf, 0, sizeof (commandbuf));
+
+  if (env_get (process_get_pgid (), "help", (void*)commandbuf, sizeof (commandbuf)) == ST_OK) {
+    mprintf ("devices -C command\n");
+    mprintf ("commands: list_all\n");
+    return;
+  }
+
+  if (env_get (process_get_pgid (), "C", (void*)commandbuf, sizeof (commandbuf)) != ST_OK) {
+    mprintf ("ERROR C=???. No command provided\n");
+    return;
+  }
+
+  if (strcmp (commandbuf, "list_all") == 0) {
+    list_all_devices ();
+  }
+}