qmk-firmware/keyboards/georgi/georgi.c
Jeremy Bernhardt 980a41e904 [Keyboard] Georgi Support (#5384)
* Working on chording

* Working on chording

* Got layouts in order

* Initial Georgi support

* forgot to add keymaps

* Updated readme

* Update keyboards/georgi/keymaps/template/readme.md

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/georgi.h

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/rules.mk

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/rules.mk

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/matrix.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/georgi.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/georgi.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/rules.mk

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/keymaps/template/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/matrix.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Disabled features, updated info

* Update keyboards/georgi/config.h

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/georgi/config.h

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Fixed info.json
2019-03-14 13:59:34 -07:00

69 lines
2.2 KiB
C

#include QMK_KEYBOARD_H
bool i2c_initialized = 0;
i2c_status_t mcp23018_status = 0x20;
void matrix_init_kb(void) {
steno_set_mode(STENO_MODE_GEMINI); // or STENO_MODE_BOLT
// (tied to Vcc for hardware convenience)
//DDRB &= ~(1<<4); // set B(4) as input
//PORTB &= ~(1<<4); // set B(4) internal pull-up disabled
// unused pins - C7, D4, D5, D7, E6
// set as input with internal pull-up enabled
DDRC &= ~(1<<7);
DDRD &= ~(1<<5 | 1<<4 | 1<<6 | 1<<7);
DDRE &= ~(1<<6);
PORTC |= (1<<7);
PORTD |= (1<<5 | 1<<4 | 1<<6 | 1<<7);
PORTE |= (1<<6);
matrix_init_user();
}
uint8_t init_mcp23018(void) {
print("starting init");
mcp23018_status = 0x20;
// I2C subsystem
// uint8_t sreg_prev;
// sreg_prev=SREG;
// cli();
if (i2c_initialized == 0) {
i2c_init(); // on pins D(1,0)
i2c_initialized = true;
_delay_ms(1000);
}
// i2c_init(); // on pins D(1,0)
// _delay_ms(1000);
// set pin direction
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
mcp23018_status = i2c_start(I2C_ADDR_WRITE, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(IODIRA, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b10000000, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b11111111, ERGODOX_EZ_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, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPPUA, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b10000000, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b11111111, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
out:
i2c_stop();
// SREG=sreg_prev;
//uprintf("Init %x\n", mcp23018_status);
return mcp23018_status;
}