[Keyboard] Add TGR x SINGA Unikorn 60 (#6249)

* initial commit, copied from singa

* default 60_ansi LAYOUT implemented and tested workin

* add rgb underglow support bounded by ifdefs

* edit readme to provide information on reset procedure and on rgb underglow support

* improve the default keymap to have a second layer with function keys and even a RESET

* Add LAYOUT_all macro and discovered that split backspace uses an additional pin on the microcontroller

* fix up last line in readme

* Add QMK Configurator support

1 files changed, 89 insertions, 0 deletions

diff --git a/keyboards/unikorn/unikorn.c b/keyboards/unikorn/unikorn.c
new file mode 100644
index 0000000000..1bd47ef9e1
--- /dev/null
+++ b/keyboards/unikorn/unikorn.c
@@ -0,0 +1,89 @@
+/* Copyright 2019 MechMerlin
+ *
+ * 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 "i2c_master.h"
+#include "quantum.h"
+
+#ifdef RGBLIGHT_ENABLE
+#include "rgblight.h"
+extern rgblight_config_t rgblight_config;
+
+void rgblight_set(void) {
+    if (!rgblight_config.enable) {
+        for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+            led[i].r = 0;
+            led[i].g = 0;
+            led[i].b = 0;
+        }
+    }
+
+    i2c_init();
+    i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+}
+#endif
+
+void matrix_init_kb(void) {
+#ifdef RGBLIGHT_ENABLE
+    if (rgblight_config.enable) {
+        i2c_init();
+        i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+    }
+#endif
+    // call user level keymaps, if any
+    matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+#ifdef RGBLIGHT_ENABLE
+    rgblight_task();
+#endif
+    matrix_scan_user();
+    /* Nothing else for now. */
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+void backlight_init_ports(void) {
+    // initialize pins D0, D1, D4 and D6 as output
+    setPinOutput(D0);
+    setPinOutput(D1);
+    setPinOutput(D4);
+    setPinOutput(D6);
+
+    // turn backlight LEDs on
+    writePinHigh(D0);
+    writePinHigh(D1);
+    writePinHigh(D4);
+    writePinHigh(D6);
+}
+
+void backlight_set(uint8_t level) {
+	if (level == 0) {
+        // turn backlight LEDs off
+        writePinLow(D0);
+        writePinLow(D1);
+        writePinLow(D4);
+        writePinLow(D6);
+	} else {
+        // turn backlight LEDs on
+        writePinHigh(D0);
+        writePinHigh(D1);
+        writePinHigh(D4);
+        writePinHigh(D6);
+	}
+}