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| author | Jeremy Bernhardt <jeremythegeek@gmail.com> | 2019-03-29 18:39:28 +0100 |
|---|---|---|
| committer | Drashna Jaelre <drashna@live.com> | 2019-03-29 18:39:28 +0100 |
| commit | 8fa9f67256772984110a6e21f19d6fb8594b804d (patch) | |
| tree | 53c5ac04dd72031800e3aaba707ce66d5748cd3d /keyboards/ergotaco/ergotaco.c | |
| parent | 3f4d706c98fc3a7f5fcec6ed0b62291b4159f097 (diff) | |
| download | qmk_firmware-8fa9f67256772984110a6e21f19d6fb8594b804d.tar.gz qmk_firmware-8fa9f67256772984110a6e21f19d6fb8594b804d.tar.xz | |
[Keyboard] ErgoTaco Support (#5504)
* ErgoTaco support
* Update keyboards/ergotaco/ergotaco.h
Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/ergotaco/keymaps/default/keymap.c
Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/ergotaco/keymaps/default/keymap.c
Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/ergotaco/readme.md
Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/ergotaco/readme.md
Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/ergotaco/rules.mk
Co-Authored-By: germ <jeremythegeek@gmail.com>
* juggling rules.mk
* Update keyboards/ergotaco/rules.mk
Co-Authored-By: germ <jeremythegeek@gmail.com>
* updating IS_COMMAND
* learning2english
Meme-tastic --Drashna
Diffstat (limited to 'keyboards/ergotaco/ergotaco.c')
| -rw-r--r-- | keyboards/ergotaco/ergotaco.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/keyboards/ergotaco/ergotaco.c b/keyboards/ergotaco/ergotaco.c new file mode 100644 index 000000000..ecab74b3a --- /dev/null +++ b/keyboards/ergotaco/ergotaco.c @@ -0,0 +1,72 @@ +#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 + // set as input with internal pull-up enabled + DDRB &= ~(1<<4 | 1<<5 | 1<<6 | 1<<7); + PORTB |= (1<<4 | 1<<5 | 1<<6 | 1<<7); + + DDRC &= ~(1<<7 | 1<<6); + PORTC |= (1<<7 | 1<<6); + + DDRD &= ~(1<<4 | 1<<5 | 1<<6 | 1<<7); + PORTD |= (1<<4 | 1<<5 | 1<<6 | 1<<7); + + DDRE &= ~(1<<6); + PORTE |= (1<<6); + + DDRF &= ~(1<<0 | 1<<1 | 1<<4 | 1<<6 | 1<<7); + PORTF |= (1<<0 | 1<<1 | 1<<4 | 1<<6 | 1<<7); + + 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); + } + + // 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(0b00000000, 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(0b00000000, 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; +} |