[Keyboard] gBoards GergoPlex (#13027)

* Moved gergoplex to seperate PR

* vendor + cformat

* Update keyboards/gboards/k/gergoplex/matrix.c

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* lifiting keyboards up

* Update readme.md

* Update keyboards/gboards/gergoplex/config.h

Co-authored-by: Drashna Jaelre <drashna@live.com>

* remove English dicts

* cformatted

* Prettify keymap

* Remove via keymaps

Via doesn't support chords/combos, and this makes the keymap on such a
small keyboard quite uncomfortable and incomplete.

* Address QMK pull code review notes

* Cleanup (tabs, excessive comments)

* Fix keymap typos

* Use enum to define layers

* Multiple changes

 - got rid of LAYOUT_kc in favour of LAYOUT_split_3x5_3
 - fixed matrix custom C code to build with updated external dependencies (gcc)
 - fixed used combo docs

    keyboards/gboards/gergoplex/matrix.c:189:9: error: implicit declaration of function 'phex' [-Werror=implicit-function-declaration]
             phex(row);
             ^~~~
    keyboards/gboards/gergoplex/matrix.c:191:9: error: implicit declaration of function 'pbin_reverse16'; did you mean 'print_bin_reverse16'? [-Werror=implicit-function-declaration]
             pbin_reverse16(matrix_get_row(row));

* Remove apparently redundant macros

* Replace direct pin control with IO functions

* config mouse enable and combo delay fix

The default delay is 200:

    #define COMBO_TERM 200
        how long for the Combo keys to be detected. Defaults to TAPPING_TERM if not defined.

    tmk_core/common/action_tapping.h|22| 13:#    define TAPPING_TERM 200

* Remove redundant defines

* Unambiguously refer to the Special layer

* Fix formatting

* gboards/gergoplex set IGNORE_MOD_TAP_INTERRUPT

This solves my issue was with KC_CTL_A working correctly and it was set in @germ's repo
https://github.com/germ/qmk_firmware/blob/39c86e080dc04b68ee08387dcb5144c88cb44855/keyboards/gboards/k/gergoplex/config.h#L49

 https://beta.docs.qmk.fm/using-qmk/software-features/tap_hold#ignore-mod-tap-interrupt

* Name change

See commit 581368596ed

* Wording change

* Update keyboards/gboards/gergoplex/keymaps/default/keymap.c

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Add copyright headers

* Fix debounce type

 | avr-gcc: error: .build/obj_gboards_gergoplex_default/quantum/debounce/eager_pr.o: No such file or directory

* Implement colemak-dhm keymap

Co-authored-by: Germ <jeremythegeek@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Brian Tannous <Brian@BrianTannous.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/keyboards/gboards/gergoplex/gergoplex.c b/keyboards/gboards/gergoplex/gergoplex.c
new file mode 100644
index 0000000000..1e44583895
--- /dev/null
+++ b/keyboards/gboards/gergoplex/gergoplex.c
@@ -0,0 +1,68 @@
+/* Copyright 2021 Jane Bernhardt
+  *
+  * 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 "gergoplex.h"
+
+bool i2c_initialized = 0;
+i2c_status_t mcp23018_status = 0x20;
+
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+uint8_t init_mcp23018(void) {
+    print("starting init");
+    mcp23018_status = 0x20;
+
+    // I2C subsystem
+
+    if (i2c_initialized == 0) {
+        i2c_init();  // on pins D(1,0)
+        i2c_initialized = true;
+        _delay_ms(1000);
+    }
+
+    // set pin direction
+    // - unused  : input  : 1
+    // - input   : input  : 1
+    // - driving : output : 0
+    mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(IODIRA, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(0b11000001, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(0b11111111, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    i2c_stop();
+
+    // set pull-up
+    // - unused  : on  : 1
+    // - input   : on  : 1
+    // - driving : off : 0
+    mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(GPPUA, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(0b11000001, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+    mcp23018_status = i2c_write(0b11111111, I2C_TIMEOUT);
+    if (mcp23018_status) goto out;
+
+out:
+    i2c_stop();
+    return mcp23018_status;
+}