Keyboard: add ep40 qmk support (#4291)

* add initial ep40 files

* fixed issues

* updated keymap

* Added media control

* Update keyboards/handwired/ep40/rules.mk

Co-Authored-By: e11i0t23 <32494740+e11i0t23@users.noreply.github.com>

* Fixed requested changes

* Fixed more requested changes

8 files changed, 348 insertions, 0 deletions

diff --git a/keyboards/handwired/ep40/config.h b/keyboards/handwired/ep40/config.h
new file mode 100644
index 000000000..90630cd68
--- /dev/null
+++ b/keyboards/handwired/ep40/config.h
@@ -0,0 +1,114 @@
+/*
+Copyright 2018 Elliot Powell
+
+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/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x4040
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Elliot Powell
+#define PRODUCT         ep40
+#define DESCRIPTION     A simple 40% keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS { C7, C6, B6, B5 }
+#define MATRIX_COL_PINS { F6, F5, F4, F1, F0, D2, D3, D5, D4, D6, D7, B4 }
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
diff --git a/keyboards/handwired/ep40/ep40.c b/keyboards/handwired/ep40/ep40.c
new file mode 100644
index 000000000..257f9fa80
--- /dev/null
+++ b/keyboards/handwired/ep40/ep40.c
@@ -0,0 +1,43 @@
+/* Copyright 2018 Elliot Powell
+ *
+ * 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/>.
+ */
+#include "ep40.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+	led_set_user(usb_led);
+}
diff --git a/keyboards/handwired/ep40/ep40.h b/keyboards/handwired/ep40/ep40.h
new file mode 100644
index 000000000..30f3d15b4
--- /dev/null
+++ b/keyboards/handwired/ep40/ep40.h
@@ -0,0 +1,44 @@
+/* Copyright 2018 Elliot Powell
+ *
+ * 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 EP40_H
+#define EP40_H
+
+#include "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define xxx KC_NO
+
+#define LAYOUT(\
+  k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b,\
+	k10, k11, k12, k13, k14, k15, k16, k17, k18, k19,      k1b,\
+	k20,      k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b,\
+	k30, k31, k32,      k34,      k36,      k38, k39, k3a, k3b \
+) \
+{ \
+  {k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b},\
+	{k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, xxx, k1b},\
+	{k20, xxx, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b},\
+	{k30, k31, k32, xxx, k34, xxx, k36, xxx, k38, k39, k3a, k3b} \
+}
+
+#endif
diff --git a/keyboards/handwired/ep40/info.json b/keyboards/handwired/ep40/info.json
new file mode 100644
index 000000000..1c57ac674
--- /dev/null
+++ b/keyboards/handwired/ep40/info.json
@@ -0,0 +1,12 @@
+{
+    "keyboard_name":"ep40",
+    "url":null,
+    "maintainer":"e11i0t23",
+    "width":12,
+    "hight":4,
+    "layouts": {
+        "LAYOUT": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":6, "y":0}, {"x":7, "y":0}, {"x":8, "y":0}, {"x":9, "y":0}, {"x":10, "y":0}, {"x":11, "y":0}, {"x":0, "y":1, "w":1.25}, {"x":1.25, "y":1}, {"x":2.25, "y":1}, {"x":3.25, "y":1}, {"x":4.25, "y":1}, {"x":5.25, "y":1}, {"x":6.25, "y":1}, {"x":7.25, "y":1}, {"x":8.25, "y":1}, {"x":9.25, "y":1}, {"x":10.25, "y":1, "w":1.75}, {"x":0, "y":2, "w":1.75}, {"x":1.75, "y":2}, {"x":2.75, "y":2}, {"x":3.75, "y":2}, {"x":4.75, "y":2}, {"x":5.75, "y":2}, {"x":6.75, "y":2}, {"x":7.75, "y":2}, {"x":8.75, "y":2}, {"x":9.75, "y":2}, {"x":10.75, "y":2, "w":1.25}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3, "w":2.25}, {"x":5.25, "y":3, "w":2.75}, {"x":8, "y":3}, {"x":9, "y":3}, {"x":10, "y":3}, {"x":11, "y":3}]
+        }
+    }
+}
diff --git a/keyboards/handwired/ep40/keymaps/default/keymap.c b/keyboards/handwired/ep40/keymaps/default/keymap.c
new file mode 100644
index 000000000..2d8a5d059
--- /dev/null
+++ b/keyboards/handwired/ep40/keymaps/default/keymap.c
@@ -0,0 +1,39 @@
+/* Copyright 2018 Elliot Powell
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT( /* Base */
+    KC_GESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,\
+    KC_TAB,  KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L,       KC_ENT, \
+    KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT,  KC_RSFT,\
+    LCTL_T(KC_LBRC), KC_LGUI, KC_LALT,  KC_SPC,  LT(1, KC_SPC), KC_RGUI, MO(2), RCTL_T(KC_RBRC),  KC_RALT \
+  ),
+
+  [1] = LAYOUT( /* Base */
+    KC_TRNS,  KC_1   , KC_2   , KC_3   , KC_4   , KC_5   , KC_6   , KC_7   , KC_8   , KC_9   , KC_0,    KC_DEL ,\
+    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_LEFT, KC_UP,   KC_DOWN, KC_RIGHT,         KC_TRNS,\
+    KC_TRNS,           KC_VOLD, KC_MUTE, KC_VOLU, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MINS, KC_EQL, KC_TRNS,\
+    KC_TRNS,  KC_TRNS, KC_TRNS,          KC_TRNS,          KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS \
+  ),
+
+  [2] = LAYOUT( /* Base */
+    KC_F1  ,  KC_F2  , KC_F3  , KC_F4  , KC_F5  , KC_F6  , KC_F7  , KC_F8  , KC_F9  , KC_F10 , KC_F11 , KC_F12 ,\
+    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_SCLN, KC_QUOT, KC_NUHS,          KC_TRNS,\
+    KC_TRNS,           KC_NUBS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_SLSH, KC_TRNS, KC_TRNS,\
+    KC_TRNS,  KC_TRNS, KC_TRNS,          KC_TRNS,          KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS, RESET \
+  ),
+};
diff --git a/keyboards/handwired/ep40/keymaps/default/readme.md b/keyboards/handwired/ep40/keymaps/default/readme.md
new file mode 100644
index 000000000..242c0afb9
--- /dev/null
+++ b/keyboards/handwired/ep40/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for ep40
\ No newline at end of file
diff --git a/keyboards/handwired/ep40/readme.md b/keyboards/handwired/ep40/readme.md
new file mode 100644
index 000000000..5acd8892d
--- /dev/null
+++ b/keyboards/handwired/ep40/readme.md
@@ -0,0 +1,15 @@
+# ep40
+
+![ep40](https://i.imgur.com/Jl7w6I9.jpg)
+
+A simple 40% keyboard
+
+Keyboard Maintainer: [Elliot Powell](https://reddit.com/u/e11i0t23, https://github.com/e11i0t23)  
+Hardware Supported: EP40 PCB  
+Hardware Availability: None at the moment
+
+Make example for this keyboard (after setting up your build environment):
+
+    make ep40:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/handwired/ep40/rules.mk b/keyboards/handwired/ep40/rules.mk
new file mode 100644
index 000000000..9ddf9717e
--- /dev/null
+++ b/keyboards/handwired/ep40/rules.mk
@@ -0,0 +1,80 @@
+# MCU name
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   atmega32a    bootloadHID
+BOOTLOADER = atmel-dfu
+
+
+# If you don't know the bootloader type, then you can specify the
+# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
+#   Teensy halfKay      512
+#   Teensy++ halfKay    1024
+#   Atmel DFU loader    4096
+#   LUFA bootloader     4096
+#   USBaspLoader        2048
+# OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = yes        # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no 		# Enable support for HD44780 based LCDs (+400)