mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-27 19:49:01 +06:00
307be48de9
* Update SPLIT_USB_TIMEOUT -500ms * Align keyboard level SPLIT_USB_TIMEOUT defaults * Align keyboard level SPLIT_USB_TIMEOUT_POLL * Review fixes
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
#include <avr/io.h>
|
|
#include <avr/wdt.h>
|
|
#include <avr/power.h>
|
|
#include <avr/interrupt.h>
|
|
#include <util/delay.h>
|
|
#include <avr/eeprom.h>
|
|
#include "split_util.h"
|
|
#include "matrix.h"
|
|
#include "keyboard.h"
|
|
#include "wait.h"
|
|
|
|
#ifdef EE_HANDS
|
|
# include "eeconfig.h"
|
|
#endif
|
|
|
|
#ifdef USE_MATRIX_I2C
|
|
# include "i2c.h"
|
|
#else
|
|
# include "split_scomm.h"
|
|
#endif
|
|
|
|
#ifndef SPLIT_USB_TIMEOUT
|
|
# define SPLIT_USB_TIMEOUT 2000
|
|
#endif
|
|
|
|
#ifndef SPLIT_USB_TIMEOUT_POLL
|
|
# define SPLIT_USB_TIMEOUT_POLL 10
|
|
#endif
|
|
|
|
volatile bool isLeftHand = true;
|
|
|
|
bool waitForUsb(void) {
|
|
for (uint8_t i = 0; i < (SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL); i++) {
|
|
// This will return true if a USB connection has been established
|
|
if (UDADDR & _BV(ADDEN)) {
|
|
return true;
|
|
}
|
|
wait_ms(SPLIT_USB_TIMEOUT_POLL);
|
|
}
|
|
|
|
// Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow
|
|
(USBCON &= ~(_BV(USBE) | _BV(OTGPADE)));
|
|
|
|
return false;
|
|
}
|
|
|
|
__attribute__((weak)) bool is_keyboard_left(void) {
|
|
#if defined(SPLIT_HAND_PIN)
|
|
// Test pin SPLIT_HAND_PIN for High/Low, if low it's right hand
|
|
setPinInput(SPLIT_HAND_PIN);
|
|
return readPin(SPLIT_HAND_PIN);
|
|
#elif defined(EE_HANDS)
|
|
return eeconfig_read_handedness();
|
|
#elif defined(MASTER_RIGHT)
|
|
return !has_usb();
|
|
#endif
|
|
|
|
return has_usb();
|
|
}
|
|
|
|
__attribute__((weak)) bool has_usb(void) {
|
|
static enum { UNKNOWN, MASTER, SLAVE } usbstate = UNKNOWN;
|
|
|
|
// only check once, as this is called often
|
|
if (usbstate == UNKNOWN) {
|
|
#if defined(SPLIT_USB_DETECT)
|
|
usbstate = waitForUsb() ? MASTER : SLAVE;
|
|
#elif defined(__AVR__)
|
|
USBCON |= (1 << OTGPADE); // enables VBUS pad
|
|
wait_us(5);
|
|
|
|
usbstate = (USBSTA & (1 << VBUS)) ? MASTER : SLAVE; // checks state of VBUS
|
|
#else
|
|
usbstate = MASTER;
|
|
#endif
|
|
}
|
|
|
|
return (usbstate == MASTER);
|
|
}
|
|
|
|
static void keyboard_master_setup(void) {
|
|
|
|
#ifdef USE_MATRIX_I2C
|
|
i2c_master_init();
|
|
#else
|
|
serial_master_init();
|
|
#endif
|
|
}
|
|
|
|
static void keyboard_slave_setup(void) {
|
|
|
|
#ifdef USE_MATRIX_I2C
|
|
i2c_slave_init(SLAVE_I2C_ADDRESS);
|
|
#else
|
|
serial_slave_init();
|
|
#endif
|
|
}
|
|
|
|
// this code runs before the usb and keyboard is initialized
|
|
void split_keyboard_setup(void) {
|
|
isLeftHand = is_keyboard_left();
|
|
|
|
if (has_usb()) {
|
|
keyboard_master_setup();
|
|
} else {
|
|
keyboard_slave_setup();
|
|
}
|
|
sei();
|
|
}
|