qmk_firmware/keyboards/handwired/frenchdev/frenchdev.c
David Hoelscher e9bd7d7ad3
I2C driver cleanup (#21273)
* remove i2c_start and i2c_stop from i2c drivers

* remove static i2c_address variable from chibios i2c driver
2024-01-17 14:05:38 +01:00

101 lines
2.6 KiB
C

#include "frenchdev.h"
extern inline void frenchdev_board_led_on(void);
extern inline void frenchdev_led_1_on(void);
extern inline void frenchdev_led_2_on(void);
extern inline void frenchdev_led_3_on(void);
extern inline void frenchdev_led_on(uint8_t led);
extern inline void frenchdev_board_led_off(void);
extern inline void frenchdev_led_1_off(void);
extern inline void frenchdev_led_2_off(void);
extern inline void frenchdev_led_3_off(void);
extern inline void frenchdev_led_off(uint8_t led);
extern inline void frenchdev_led_all_on(void);
extern inline void frenchdev_led_all_off(void);
extern inline void frenchdev_led_1_set(uint8_t n);
extern inline void frenchdev_led_2_set(uint8_t n);
extern inline void frenchdev_led_3_set(uint8_t n);
extern inline void frenchdev_led_set(uint8_t led, uint8_t n);
extern inline void frenchdev_led_all_set(uint8_t n);
bool i2c_initialized = 0;
uint8_t mcp23018_status = 0x20;
void matrix_init_kb(void) {
// keyboard LEDs (see "PWM on ports OC1(A|B|C)" in "teensy-2-0.md")
TCCR1A = 0b10101001; // set and configure fast PWM
TCCR1B = 0b00001001; // set and configure fast PWM
// unused pins - D4, D5, D7, E6
// set as input with internal pull-ip enabled
DDRD &= ~(1<<5 | 1<<4);
DDRE &= ~(1<<6);
PORTD |= (1<<5 | 1<<4);
PORTE |= (1<<6);
frenchdev_blink_all_leds();
frenchdev_blink_all_leds();
frenchdev_blink_all_leds();
frenchdev_blink_all_leds();
matrix_init_user();
}
void frenchdev_blink_all_leds(void)
{
frenchdev_led_all_off();
frenchdev_led_all_set(LED_BRIGHTNESS_HI);
frenchdev_led_1_on();
wait_ms(50);
frenchdev_led_2_on();
wait_ms(50);
frenchdev_led_3_on();
wait_ms(50);
frenchdev_led_1_off();
wait_ms(50);
frenchdev_led_2_off();
wait_ms(50);
frenchdev_led_3_off();
frenchdev_led_all_off();
}
uint8_t init_mcp23018(void) {
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;;
wait_ms(1000);
}
// set pin direction
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
uint8_t data[] = {0b00000000, 0b00111111};
mcp23018_status = i2c_writeReg(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT);
if (!mcp23018_status) {
// set pull-up
// - unused : on : 1
// - input : on : 1
// - driving : off : 0
mcp23018_status = i2c_writeReg(I2C_ADDR, GPPUA, data, sizeof(data), I2C_TIMEOUT);
}
// SREG=sreg_prev;
return mcp23018_status;
}