From d8eace35ebae454923f3ed30fc93ad357640d804 Mon Sep 17 00:00:00 2001 From: Jeremy Bernhardt Date: Fri, 11 Jan 2019 19:44:06 -0600 Subject: [Keyboard] Adding support for Gergo (#4792) * Commited into clean repo * Gergo initial release * Cleaning up * Cleaning up * Update readme.md * Updated image, fixed MD formatting, added clairity * Moved keymap to keyboard subdir, modified rules.mk * Cleaned header guards * Cleaned header guards. Read the rest of the PR comments * Update keyboards/gergo/keymaps/default/keymap.c Co-Authored-By: germ * Update keyboards/gergo/readme.md Co-Authored-By: germ * Moved makefiles to keymap mod-area-thingy-with-overrides * Update rules.mk Slow the roll on the defaults while I wait for merge * Update rules.mk * Cleaning cleaning cleaning * More housekeeping. Keeping optdefs * moved keyboard specfic conf to config.h. Can we merge yet? * added info.json --- keyboards/gergo/gergo.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 keyboards/gergo/gergo.c (limited to 'keyboards/gergo/gergo.c') diff --git a/keyboards/gergo/gergo.c b/keyboards/gergo/gergo.c new file mode 100644 index 000000000..c6ba91bb2 --- /dev/null +++ b/keyboards/gergo/gergo.c @@ -0,0 +1,66 @@ +#include QMK_KEYBOARD_H + +bool i2c_initialized = 0; +i2c_status_t mcp23018_status = 0x20; + +void matrix_init_kb(void) { + // (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(ERGODOX_EZ_I2C_TIMEOUT); + + // 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(ERGODOX_EZ_I2C_TIMEOUT); + // SREG=sreg_prev; + //uprintf("Init %x\n", mcp23018_status); + return mcp23018_status; +} -- cgit v1.2.3-24-g4f1b