Added Contra keyboard support (#2501)

* Added Contra keyboard support

The configuration came from a source distribution of the firmware on the
Contra's official website.

I have also included a simple MIDI keymap. (And it works!)

* Changes to Contra config and README

* Readme has been changed as requested by jackhumbert
* Config has been changed to add the Cartel and Contra names to
  the USB configuration.

4 files changed, 98 insertions, 0 deletions

diff --git a/keyboards/contra/keymaps/dana/config.h b/keyboards/contra/keymaps/dana/config.h
new file mode 100644
index 000000000..2846b5791
--- /dev/null
+++ b/keyboards/contra/keymaps/dana/config.h
@@ -0,0 +1,30 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+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 program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+
+#undef TAPPING_TERM
+#define TAPPING_TERM 190
+
+#define MUSIC_MASK (keycode != KC_NO)
+#define MIDI_ADVANCED
+
+#endif
diff --git a/keyboards/contra/keymaps/dana/keymap.c b/keyboards/contra/keymaps/dana/keymap.c
new file mode 100644
index 000000000..529491923
--- /dev/null
+++ b/keyboards/contra/keymaps/dana/keymap.c
@@ -0,0 +1,37 @@
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+// this is the style you want to emulate.
+
+#include "contra.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | `    |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Shift |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | Cmd  |Lower |    Space    |Raise | Enter| Cmd  |  Alt |Ctrl  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[0] = {
+    { MI_C_4, MI_Cs_4, MI_D_4, MI_Ds_4, MI_E_4, MI_F_4, MI_Fs_4, MI_G_4, MI_Gs_4, MI_A_4, MI_As_4, MI_B_4 },
+    { MI_C_3, MI_Cs_3, MI_D_3, MI_Ds_3, MI_E_3, MI_F_3, MI_Fs_3, MI_G_3, MI_Gs_3, MI_A_3, MI_As_3, MI_B_3 },
+    { MI_C_2, MI_Cs_2, MI_D_2, MI_Ds_2, MI_E_2, MI_F_2, MI_Fs_2, MI_G_2, MI_Gs_2, MI_A_2, MI_As_2, MI_B_2 },
+    { MI_C_1, MI_Cs_1, MI_D_1, MI_Ds_1, MI_E_1, MI_F_1, MI_Fs_1, MI_G_1, MI_Gs_1, MI_A_1, MI_As_1, MI_B_1 }
+}
+};
+
+
+
+
diff --git a/keyboards/contra/keymaps/dana/readme.md b/keyboards/contra/keymaps/dana/readme.md
new file mode 100644
index 000000000..75b4582d4
--- /dev/null
+++ b/keyboards/contra/keymaps/dana/readme.md
@@ -0,0 +1,6 @@
+# Dana musical MIDI keyboard layout
+
+Has the contra mapped as a MIDI keyboard, where each row is an octave.
+
+The keyboard has only MIDI, nothing else!
+
diff --git a/keyboards/contra/keymaps/dana/rules.mk b/keyboards/contra/keymaps/dana/rules.mk
new file mode 100644
index 000000000..1198f378a
--- /dev/null
+++ b/keyboards/contra/keymaps/dana/rules.mk
@@ -0,0 +1,25 @@
+
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no        # Mouse keys(+4700)
+EXTRAKEY_ENABLE = no       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = yes           # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = yes            # MIDI controls
+AUDIO_ENABLE = no            # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif