From 78f545c1ae77b98f73c2ef475a28b37dcbc2cd10 Mon Sep 17 00:00:00 2001
From: Merlijn Wajer <merlijn@wizzup.org>
Date: Mon, 3 Dec 2012 20:16:19 +0100
Subject: [PATCH] Initial working commit.

---
 KEYS  |  21 +++++++++++
 map.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 131 insertions(+)
 create mode 100644 KEYS
 create mode 100644 map.c

diff --git a/KEYS b/KEYS
new file mode 100644
index 0000000..f6cb6f9
--- /dev/null
+++ b/KEYS
@@ -0,0 +1,21 @@
+[Left]
+    KEY_LEFT, KEY_UP, KEY_RIGHT, KEY_DOWN (type=EV_KEY, value={0,1})
+
+Red:
+    0: KEY_LEFTCTRL
+    1: KEY_LEFTALT
+    2: KEY_SPACE
+
+Yellow:
+    3: KEY_1
+
+[Right]
+    KEY_D, KEY_R, KEY_G, KEY_F (type=EV_KEY, value={0,1})
+
+Red:
+    0: KEY_A
+    1: KEY_S
+    2: KEY_Q
+
+Yellow:
+    3: KEY_2
diff --git a/map.c b/map.c
new file mode 100644
index 0000000..2a4a129
--- /dev/null
+++ b/map.c
@@ -0,0 +1,110 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <time.h>
+
+#include <linux/input.h>
+#include <linux/uinput.h>
+
+#define INPUT_PATH "/dev/input/by-path/platform-i8042-serio-0-event-kbd"
+/*#define INPUT_PATH "/dev/input/by-path/platform-i8042-serio-0-event-kbd"*/
+#define UINPUT_PATH "/dev/uinput"
+
+/* TODO:
+ * - Use atexit() to free joysticks
+ * - Make joysticks static
+ *
+ *
+ */
+
+int main(int argc, char** argv) {
+    int in, uin;
+    struct input_event e, je;
+    struct uinput_user_dev uidev;
+
+    in = open(INPUT_PATH, O_RDONLY);
+    if(in < 0) {
+        perror("open in");
+        return 1;
+    }
+
+    uin = open(UINPUT_PATH, O_WRONLY | O_NONBLOCK);
+    if (uin < 0) {
+        perror("open uin");
+        return 2;
+    }
+
+    /* Create devices */
+    if (ioctl(uin, UI_SET_EVBIT, EV_ABS) < 0) {
+        perror("ioctl EV_ABS");
+        return 1;
+    }
+
+    if (ioctl(uin, UI_SET_EVBIT, EV_KEY) < 0) {
+        perror("ioctl EV_KEY");
+        return 1;
+    }
+
+    /* Every ``button'' needs to be registered */
+    if (ioctl(uin, UI_SET_ABSBIT, ABS_HAT0Y) < 0) {
+        perror("ioctl ABS_");
+        return 1;
+    }
+
+    memset(&uidev, '\0', sizeof(struct uinput_user_dev));
+    snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "key2joy:1");
+
+    uidev.id.bustype = BUS_USB;
+    uidev.id.vendor  = 0x42;
+    uidev.id.product = 0xbebe;
+    uidev.id.version = 1;
+
+    if (write(uin, &uidev, sizeof(uidev)) < 0) {
+        perror("write");
+        return -1;
+    }
+
+    if (ioctl(uin, UI_DEV_CREATE)) {
+        perror("ioctl create");
+        return 1;
+    }
+
+    while (1) {
+        printf("in: %d, uin: %d\n", in, uin);
+        if (read(in, &e, sizeof(struct input_event))) {
+            printf("Event: (Type: %d, Code: %d, Value %d)\n", e.type, e.code, e.value);
+        }
+
+
+        if (e.type == EV_KEY && e.code == KEY_UP) {
+            memset(&je, '\0', sizeof(struct input_event));
+            je.type = EV_ABS;
+            je.code = ABS_HAT0Y;
+            je.value = -e.value;
+            if(write(uin, &je, sizeof(struct input_event)) < 0) {
+                perror("EV_ABS Write event");
+                return -1;
+            }
+        }
+        if (e.type == EV_SYN) {
+            memset(&je, '\0', sizeof(struct input_event));
+            printf("SYN event\n");
+
+            je.type = EV_SYN;
+            je.code = 0;
+            je.value = 0;
+
+            if (write(uin, &je, sizeof(struct input_event)) < 0) {
+                perror("SYN write event");
+                return -1;
+            }
+        }
+        printf("---\n");
+    }
+
+
+}