[Keyboard] Add Synth Labs Solo keyboard

keyboards/synthlabs/solo/config.h

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define MANUFACTURER    Synth Labs
+#define PRODUCT         Solo
+
+#define ENCODERS 1
+#define ENCODER_RESOLUTION 4
+#define ENCODERS_PAD_A { B2 }
+#define ENCODERS_PAD_B { B3 }
+#define ENCODERS_CW_KEY { { 2, 1 } }
+#define ENCODERS_CCW_KEY { { 0, 1 } }
+
+/* key matrix size */
+#define MATRIX_ROWS 3
+#define MATRIX_COLS 7
+
+#define USB_POLLING_INTERVAL_MS 1
+#define QMK_KEYS_PER_SCAN 17
+
+/*
+ * 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.
+ *
+ */
+
+#define BOOTMAGIC_LITE_ROW 1
+#define BOOTMAGIC_LITE_COLUMN 1
+
+#define JOYSTICK_BUTTON_COUNT 8
+#define JOYSTICK_AXES_COUNT 1
+#define JOYSTICK_AXES_RESOLUTION 16

keyboards/synthlabs/solo/info.json

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+{
+  "keyboard_name": "Synth Labs Solo",
+  "url": "http://solo.synthlabs.io",
+  "maintainer": "hongaaronc",
+  "bootloader": "atmel-dfu",
+  "processor": "atmega32u4",
+  "debounce": 5,
+  "matrix_pins": {
+    "direct": [
+      ["C6", "D6", "B5", "B4", "D7", "B6", "D4"],
+      [null, "B7", null, null, null, null, null],
+      ["F0", "F7", "F4", "F5", "F6", "F1", "C7"]
+    ]
+  },
+  "usb": {
+    "vid": "0x534E",
+    "pid": "0x3031",
+    "device_ver": "0x0001"
+  },
+  "layouts": {
+    "LAYOUT": {
+        "layout": [
+          {"label":"P2 1", "x":3, "y":0, "w":0.5, "h":1.5, "matrix":[0,0]},
+          {"label":"P1 2", "x":3.5, "y":0, "w":0.5, "h":1.5, "matrix":[0,1]},
+          {"label":"P2 3", "x":4, "y":0, "w":0.5, "h":1.5, "matrix":[0,2]},
+          {"label":"P1 4", "x":4.5, "y":0, "w":0.5, "h":1.5, "matrix":[0,3]},
+          {"label":"P2 5", "x":5, "y":0, "w":0.5, "h":1.5, "matrix":[0,4]},
+          {"label":"P1 6", "x":5.5, "y":0, "w":0.5, "h":1.5, "matrix":[0,5]},
+          {"label":"P2 7", "x":6, "y":0, "w":0.5, "h":1.5, "matrix":[0,6]},
+          {"label":"Knob Press", "x":0.5, "y":1, "w":1.5, "h":1.5, "matrix":[1,1]},
+          {"label":"Knob CCW", "x":0, "y":1.25, "w":0.5, "matrix":[1,0]},
+          {"label":"Knob CW", "x":2, "y":1.25, "w":0.5, "matrix":[1,2]},
+          {"label":"P1 1", "x":3, "y":2, "w":0.5, "h":1.5, "matrix":[2,0]},
+          {"label":"P2 2", "x":3.5, "y":2, "w":0.5, "h":1.5, "matrix":[2,1]},
+          {"label":"P1 3", "x":4, "y":2, "w":0.5, "h":1.5, "matrix":[2,2]},
+          {"label":"P2 4", "x":4.5, "y":2, "w":0.5, "h":1.5, "matrix":[2,3]},
+          {"label":"P1 5", "x":5, "y":2, "w":0.5, "h":1.5, "matrix":[2,4]},
+          {"label":"P2 6", "x":5.5, "y":2, "w":0.5, "h":1.5, "matrix":[2,5]},
+          {"label":"P1 7", "x":6, "y":2, "w":0.5, "h":1.5, "matrix":[2,6]}
+        ]
+    }
+  }
+}

keyboards/synthlabs/solo/keymaps/default/keymap.c

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT_all(
+                                       KC_J,    KC_U,    KC_K,    KC_I,    KC_L,    KC_O, KC_SCLN,
+        _______, KC_MUTE, _______,
+                                       KC_J,    KC_U,    KC_K,    KC_I,    KC_L,    KC_O, KC_SCLN
+    )
+};

keyboards/synthlabs/solo/keymaps/default/readme.md

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+# Default Synth Labs Solo Layout
+
+This keymap is intended for usage as a macropad.

keyboards/synthlabs/solo/keymaps/gamepad/keymap.c

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+#include "joystick.h"
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT_all(
+                                    JS_BUTTON0,JS_BUTTON1,JS_BUTTON2,JS_BUTTON3,JS_BUTTON4,JS_BUTTON5,JS_BUTTON6,
+          KC_NO,   JS_BUTTON7,  KC_NO,
+                                    JS_BUTTON0,JS_BUTTON1,JS_BUTTON2,JS_BUTTON3,JS_BUTTON4,JS_BUTTON5,JS_BUTTON6
+    )
+};
+
+#if defined(JOYSTICK_ENABLE) && defined(ENCODER_ENABLE)
+
+int16_t joystick_position = 0;
+int16_t pulses_per_revolution = 24;     // Depends on encoder model. Usually 18ppr or 24ppr for Bourns EC11s.
+int16_t full_joystick_value = 32767;    // Equivalent to max value of int16. +full_joystick_value is +1.0 axis output. -full_joystick_value is -1.0 axis output.
+joystick_config_t joystick_axes[JOYSTICK_AXES_COUNT] = {
+    [0] = JOYSTICK_AXIS_VIRTUAL
+};
+
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+    joystick_position += (clockwise ? 2 : -2) * (full_joystick_value / pulses_per_revolution);  // +2 and -2 are used, since +1.0 and -1.0 axis output refers to positions at half of a full rotation
+
+    if (joystick_position != joystick_status.axes[0]) {
+        joystick_status.axes[0] = joystick_position;
+        joystick_status.status |= JS_UPDATED;
+    }
+    return true;
+}
+
+#endif

keyboards/synthlabs/solo/keymaps/gamepad/readme.md

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+# Gamepad Synth Labs Solo Layout
+
+This keymap is intended for usage as a IIDX controller. The rotary encoder is mapped as a virtual 1-axis joystick.

keyboards/synthlabs/solo/keymaps/gamepad/rules.mk

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+JOYSTICK_ENABLE = yes
+DEBOUNCE_TYPE = sym_eager_pk

keyboards/synthlabs/solo/keymaps/via/keymap.c

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT_all(
+                                       KC_J,    KC_U,    KC_K,    KC_I,    KC_L,    KC_O, KC_SCLN,
+        KC_VOLD, KC_MUTE, KC_VOLU,
+                                       KC_J,    KC_U,    KC_K,    KC_I,    KC_L,    KC_O, KC_SCLN
+    ),
+    [1] = LAYOUT_all(
+                                    _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______,
+                                    _______, _______, _______, _______, _______, _______, _______
+    ),
+    [2] = LAYOUT_all(
+                                    _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______,
+                                    _______, _______, _______, _______, _______, _______, _______
+    ),
+    [3] = LAYOUT_all(
+                                    _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______,
+                                    _______, _______, _______, _______, _______, _______, _______
+    )
+};
+
+#if defined(VIA_ENABLE) && defined(ENCODER_ENABLE)
+
+#ifdef ENCODERS
+static uint8_t encoder_state[] = {0};
+static keypos_t encoder_cw[] = ENCODERS_CW_KEY;
+static keypos_t encoder_ccw[] = ENCODERS_CCW_KEY;
+#endif
+
+void encoder_action_unregister(void) {
+#ifdef ENCODERS
+    for (int index = 0; index < ENCODERS; ++index) {
+        if (encoder_state[index]) {
+            keyevent_t encoder_event = (keyevent_t) {
+                .key = encoder_state[index] >> 1 ? encoder_cw[index] : encoder_ccw[index],
+                .pressed = false,
+                .time = (timer_read() | 1)
+            };
+            encoder_state[index] = 0;
+            action_exec(encoder_event);
+        }
+    }
+#endif
+}
+
+void encoder_action_register(uint8_t index, bool clockwise) {
+#ifdef ENCODERS
+    keyevent_t encoder_event = (keyevent_t) {
+        .key = clockwise ? encoder_cw[index] : encoder_ccw[index],
+        .pressed = true,
+        .time = (timer_read() | 1)
+    };
+    encoder_state[index] = (clockwise ^ 1) | (clockwise << 1);
+    action_exec(encoder_event);
+#endif
+}
+
+void matrix_scan_user(void) {
+    encoder_action_unregister();
+}
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    encoder_action_register(index, clockwise);
+    return false;
+}
+
+#endif

keyboards/synthlabs/solo/keymaps/via/rules.mk

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+VIA_ENABLE = yes
+BOOTLOADER = atmel-dfu

keyboards/synthlabs/solo/readme.md

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+# Synth Labs Solo
+
+![Synth Labs Solo](https://i.imgur.com/uVUtfks.png)
+
+The Solo Macropad by Synth Labs.
+
+Keyboard Maintainer: [Nostril](https://github.com/hongaaronc)  
+Hardware Supported: Synth Labs Solo
+Hardware Availability: [https://solo.synthlabs.io/](https://solo.synthlabs.io/)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make synthlabs/solo:default
+
+Flashing example for this keyboard:
+
+    make synthlabs/solo:default:flash
+
+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).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (1,1) in the matrix (the rotary encoder button) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+* 

keyboards/synthlabs/solo/rules.mk

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+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no        	# Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no      	# Disable keyboard backlight functionality
+AUDIO_ENABLE = no           # Audio output
+RGBLIGHT_ENABLE = no        # Disable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+SLEEP_LED_ENABLE = no    	# Breathing sleep LED during USB suspend
+ENCODER_ENABLE = yes		# Enable Rotary Encoder support

keyboards/synthlabs/solo/solo.c

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "solo.h"
+
+#if !defined(VIA_ENABLE) && !defined(JOYSTICK_ENABLE) && defined(ENCODER_ENABLE)
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+    if (!encoder_update_user(index, clockwise)) { return false; }
+    if (index == 0) {
+        if (clockwise) {
+            tap_code_delay(KC_VOLU, 10);
+        } else {
+            tap_code_delay(KC_VOLD, 10);
+        }
+    }
+    return true;
+}
+#endif

keyboards/synthlabs/solo/solo.h

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+// Copyright 2022 Aaron Hong (@hongaaronc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "quantum.h"
+
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+#define LAYOUT_all(                                                                 \
+                        K01, K02, K03, K04, K05, K06, K07,                          \
+        K08, K09, K10,                                                              \
+                        K11, K12, K13, K14, K15, K16, K17                           \
+    ) {                                                                             \
+        {               K01, K02, K03, K04, K05, K06, K07       },                  \
+        {   K08, K09, K10                                       },                  \
+        {               K11, K12, K13, K14, K15, K16, K17       }                   \
+    }
+#define LAYOUT_left(                                                                \
+                             K02,      K04,      K06,                               \
+        K08, K09, K10,                                                              \
+                        K11,      K13,      K15,      K17                           \
+    ) {                                                                             \
+        {               XXX, K02, XXX, K04, XXX, K06, XXX       },                  \
+        {   K08, K09, K10                                       },                  \
+        {               K11, XXX, K13, XXX, K15, XXX, K17       }                   \
+    }
+#define LAYOUT_right(                                                               \
+                 K16,      K14,      K12,                                           \
+                                            K08, K09, K10,                          \
+            K07,      K05,      K03,      K01                                       \
+    ) {                                                                             \
+        {               K01, XXX, K03, XXX, K05, XXX, K07       },                  \
+        {   K08, K09, K10                                       },                  \
+        {               XXX, K12, XXX, K14, XXX, K16, XXX       }                   \
+    }