Adds Zlant keyboard support (#3028)

* Added Zlant support

* Uses LAYOUT and identifies individual layers

* Removed deprecated =? usage on rules.mk

* Adds readme for Zlant keyboard and its default layout

* Fixed LAYOUT constant

* Minor zlant readme formatting fix

keyboards/zlant/config.h

@@ -0,0 +1,58 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x6060
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Matthew Cordier
+#define PRODUCT         Zlant
+#define DESCRIPTION     keyboard firmware for Zlant
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS { B0, B1, D4, D5 }
+#define MATRIX_COL_PINS { F0, F1, F4, F5, F6, F7, B7, D1, D2, D3, B3, B2 }
+#define UNUSED_PINS
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* number of backlight levels */
+
+#ifdef BACKLIGHT_PIN
+#define BACKLIGHT_LEVELS 0
+#endif
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* prevent stuck modifiers */
+#define PREVENT_STUCK_MODIFIERS
+
+#define RGB_DI_PIN D6
+#ifdef RGB_DI_PIN
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+#endif
+
+#endif

keyboards/zlant/keymaps/default/keymap.c

@@ -0,0 +1,20 @@
+#include QMK_KEYBOARD_H
+
+#define BASE 0
+#define FN   1
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+	[BASE] = LAYOUT(
+		KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+		KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+		KC_ESC, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT,
+		RGB_HUI, RGB_HUD, KC_LGUI, KC_LALT, KC_LSFT, KC_SPC, KC_SPC, MO(1), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT),
+
+	[FN]   = LAYOUT(
+		KC_TRNS, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_TRNS,
+		KC_TRNS, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS,
+		KC_TRNS, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_TRNS, KC_PGUP, KC_HOME, KC_TRNS, KC_TRNS,
+		RGB_VAI, RGB_VAD, RESET, KC_PSCR, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PGDN, KC_END, KC_TRNS, KC_DEL)
+
+};

keyboards/zlant/keymaps/default/readme.md

@@ -0,0 +1,5 @@
+![Zlant Layout Image](https://i.imgur.com/Siz8qsL.jpg)
+
+# Default Zlant Layout
+
+This is the default layout that comes flashed on the Zlant prototype.

keyboards/zlant/readme.md

@@ -0,0 +1,17 @@
+# Zlant
+
+![Zlant](https://i.imgur.com/Siz8qsL.jpg)
+
+A compact 40% inspired by the Plank with a staggered layout instead.
+
+Keyboard Maintainer: [Felipe Coury](https://github.com/fcoury)
+
+Hardware Supported: Zlant Prototype PCB
+
+Hardware Availability: Group buy soon
+
+Make example for this keyboard (after setting up your build environment):
+
+    make zlant:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/zlant/rules.mk

@@ -0,0 +1,56 @@
+# 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
+
+
+# Boot Section Size in *bytes*
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   comment out to disable the options.
+#
+BOOTMAGIC_ENABLE = yes	# Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes	# Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes	# Audio control and System control(+450)
+CONSOLE_ENABLE = no	# Console for debug(+400)
+COMMAND_ENABLE = no    # Commands for debug and configuration
+SLEEP_LED_ENABLE = no  # Breathing sleep LED during USB suspend
+NKRO_ENABLE = yes		# USB 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
+AUDIO_ENABLE = no
+RGBLIGHT_ENABLE = yes

keyboards/zlant/zlant.c

@@ -0,0 +1 @@
+#include "zlant.h"

keyboards/zlant/zlant.h

@@ -0,0 +1,18 @@
+#ifndef KB_H
+#define KB_H
+
+#include "quantum.h"
+
+#define LAYOUT( \
+	K000, K001, K002, K003, K004, K005, K006, K007, K008, K009, K010, K011, \
+	K100, K101, K102, K103, K104, K105, K106, K107, K108, K109, K110, K111, \
+	K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, \
+	K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311  \
+) { \
+	{ K000,  K001,  K002,  K003,  K004,  K005,  K006,  K007,  K008,  K009,  K010,  K011 }, \
+	{ K100,  K101,  K102,  K103,  K104,  K105,  K106,  K107,  K108,  K109,  K110,  K111 }, \
+	{ K200,  K201,  K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211 }, \
+	{ K300,  K301,  K302,  K303,  K304,  K305,  K306,  K307,  K308,  K309,  K310,  K311 }  \
+}
+
+#endif