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| author |  Jeremy Bernhardt <jeremythegeek@gmail.com> | 2019-01-11 19:44:06 -0600 |
|---|---|---|
| committer |  Drashna Jaelre <drashna@live.com> | 2019-01-11 17:44:06 -0800 |
| commit | d8eace35ebae454923f3ed30fc93ad357640d804 (patch) | |
| tree | 433209389a8f24aee55ee61f6441cdf4c1014b19 /keyboards/gergo/gergo.c | |
| parent | 52ccd8d89f7e4c8fca0dc15c269e8b140de520d9 (diff) | |
| download | qmk_firmware-d8eace35ebae454923f3ed30fc93ad357640d804.tar.gz | |
[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 <jeremythegeek@gmail.com>
* Update keyboards/gergo/readme.md
Co-Authored-By: germ <jeremythegeek@gmail.com>
* 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
Diffstat (limited to 'keyboards/gergo/gergo.c')
| -rw-r--r-- | keyboards/gergo/gergo.c | 66 |
1 files changed, 66 insertions, 0 deletions
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; +} |