1 files changed, 103 insertions, 0 deletions

diff --git a/firmware/target/hosted/ypr0/button-ypr0.c b/firmware/target/hosted/ypr0/button-ypr0.c
new file mode 100644
index 0000000000..4298410161
--- /dev/null
+++ b/firmware/target/hosted/ypr0/button-ypr0.c
@@ -0,0 +1,103 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: button-sdl.c 30482 2011-09-08 14:53:28Z kugel $
+ *
+ * Copyright (C) 2011 Lorenzo Miori
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>         /* EXIT_SUCCESS */
+#include "config.h"
+#include "button.h"
+#include "kernel.h"
+#include "system.h"
+#include "button-target.h"
+
+/* R0 physical key codes */
+enum ypr0_buttons {
+    R0BTN_NONE = BUTTON_NONE,
+    R0BTN_POWER = 1,
+    R0BTN_UP,
+    R0BTN_DOWN,
+    R0BTN_RIGHT,
+    R0BTN_LEFT,
+    R0BTN_CENTRAL,
+    R0BTN_MENU,
+    R0BTN_BACK,
+    R0BTN_3DOTS = 11,
+};
+
+
+static int r0_btn_fd = 0;
+/* Samsung keypad driver doesn't allow multiple key combinations :( */
+static enum ypr0_buttons r0_read_key(void)
+{
+    unsigned char keys;
+
+    if (r0_btn_fd < 0)
+        return 0;
+
+    if (read(r0_btn_fd, &keys, 1))
+        return keys;
+
+    return 0;
+}
+
+/* Conversion from physical keypress code to logic key code */
+static int key_to_button(enum ypr0_buttons keyboard_button)
+{
+    switch (keyboard_button)
+    {
+        default:            return BUTTON_NONE;
+        case R0BTN_POWER:   return BUTTON_POWER;
+        case R0BTN_UP:      return BUTTON_UP;
+        case R0BTN_DOWN:    return BUTTON_DOWN;
+        case R0BTN_RIGHT:   return BUTTON_RIGHT;
+        case R0BTN_LEFT:    return BUTTON_LEFT;
+        case R0BTN_CENTRAL: return BUTTON_SELECT;
+        case R0BTN_MENU:    return BUTTON_MENU;
+        case R0BTN_BACK:    return BUTTON_BACK;
+        case R0BTN_3DOTS:   return BUTTON_USER;
+    }
+}
+
+int button_read_device(void)
+{
+    return key_to_button(r0_read_key());
+}
+
+
+/* Open the keypad device: it is offered by r0Btn.ko module */
+void button_init_device(void)
+{
+    r0_btn_fd = open("/dev/r0Btn", O_RDONLY);
+    if (r0_btn_fd < 0)
+        printf("/dev/r0Btn open error!");
+}
+
+#ifdef BUTTON_DRIVER_CLOSE
+/* I'm not sure it's called at shutdown...give a check! */
+void button_close_device(void)
+{
+    if (r0_btn_fd >= 0) {
+        close(r0_btn_fd);
+        printf("/dev/r0Btn closed!");
+    }
+}
+#endif /* BUTTON_DRIVER_CLOSE */