[Keyboard] Maartenwut GH80-3700 (#9960)

* Add GH80-3700

* Add via keymap

* Update gh80_3700.h

* Update config.h

* LAYOUT_all -> LAYOUT_ortho_6x4

* Update readme.md

4 files changed, 101 insertions, 0 deletions

diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h b/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h
new file mode 100644
index 0000000000..0d9508060a
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h
@@ -0,0 +1,69 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+
+#pragma once
+
+#ifdef PS2_USE_USART
+#define PS2_CLOCK_PORT  PORTD
+#define PS2_CLOCK_PIN   PIND
+#define PS2_CLOCK_DDR   DDRD
+#define PS2_CLOCK_BIT   5
+#define PS2_DATA_PORT   PORTD
+#define PS2_DATA_PIN    PIND
+#define PS2_DATA_DDR    DDRD
+#define PS2_DATA_BIT    2
+
+/* synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling edge */
+/* set DDR of CLOCK as input to be slave */
+#define PS2_USART_INIT() do {   \
+    PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);   \
+    PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);     \
+    UCSR1C = ((1 << UMSEL10) |  \
+              (3 << UPM10)   |  \
+              (0 << USBS1)   |  \
+              (3 << UCSZ10)  |  \
+              (0 << UCPOL1));   \
+    UCSR1A = 0;                 \
+    UBRR1H = 0;                 \
+    UBRR1L = 0;                 \
+} while (0)
+#define PS2_USART_RX_INT_ON() do {  \
+    UCSR1B = ((1 << RXCIE1) |       \
+              (1 << RXEN1));        \
+} while (0)
+#define PS2_USART_RX_POLL_ON() do { \
+    UCSR1B = (1 << RXEN1);          \
+} while (0)
+#define PS2_USART_OFF() do {    \
+    UCSR1C = 0;                 \
+    UCSR1B &= ~((1 << RXEN1) |  \
+                (1 << TXEN1));  \
+} while (0)
+#define PS2_USART_RX_READY      (UCSR1A & (1<<RXC1))
+#define PS2_USART_RX_DATA       UDR1
+#define PS2_USART_ERROR         (UCSR1A & ((1<<FE1) | (1<<DOR1) | (1<<UPE1)))
+#define PS2_USART_RX_VECT       USART1_RX_vect
+#define PS2_MOUSE_ENABLE_SCROLLING
+#define PS2_MOUSE_INIT_DELAY 1000 
+#define PS2_MOUSE_BTN_LEFT      0
+#define PS2_MOUSE_BTN_RIGHT     1
+#define PS2_MOUSE_BTN_MIDDLE    2
+#define PS2_MOUSE_X_MULTIPLIER 2
+#define PS2_MOUSE_Y_MULTIPLIER 2
+#define PS2_MOUSE_V_MULTIPLIER 1
+#define PS2_MOUSE_SCROLL_BTN_MASK 0
+#define PS2_MOUSE_USE_REMOTE_MODE
+#endif
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c b/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c
new file mode 100644
index 0000000000..555036de72
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c
@@ -0,0 +1,26 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ortho_6x4(
+  KC_ESC,   KC_TAB,   KC_EQL,   KC_BSPC,
+  KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,
+  KC_P7,    KC_P8,    KC_P9,    KC_PPLS,
+  KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+  KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+  KC_P0,    KC_P0,    KC_PDOT,  KC_PENT),
+};
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md b/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md
new file mode 100644
index 0000000000..d434753b17
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md
@@ -0,0 +1 @@
+This is a keymap for the GH80-3700 with PS/2 mouse functionality enabled.
\ No newline at end of file
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk b/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk
new file mode 100644
index 0000000000..c58a93b73a
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk
@@ -0,0 +1,5 @@
+# Build Options
+#   change yes to no to disable
+#
+PS2_MOUSE_ENABLE = yes
+PS2_USE_USART = yes