forked from forks/qmk_firmware
262 lines
8.6 KiB
C
262 lines
8.6 KiB
C
/* Copyright 2021 QMK
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "split_util.h"
|
|
#include "matrix.h"
|
|
#include "keyboard.h"
|
|
#include "timer.h"
|
|
#include "transport.h"
|
|
#include "wait.h"
|
|
#include "debug.h"
|
|
#include "usb_util.h"
|
|
#include "bootloader.h"
|
|
|
|
#ifdef EE_HANDS
|
|
# include "eeconfig.h"
|
|
#endif
|
|
|
|
#if defined(RGBLIGHT_ENABLE) && defined(RGBLED_SPLIT)
|
|
# include "rgblight.h"
|
|
#endif
|
|
|
|
#ifndef SPLIT_USB_TIMEOUT
|
|
# define SPLIT_USB_TIMEOUT 2000
|
|
#endif
|
|
|
|
#ifndef SPLIT_USB_TIMEOUT_POLL
|
|
# define SPLIT_USB_TIMEOUT_POLL 10
|
|
#endif
|
|
|
|
// Max number of consecutive failed communications (one per scan cycle) before the communication is seen as disconnected.
|
|
// Set to 0 to disable the disconnection check altogether.
|
|
#ifndef SPLIT_MAX_CONNECTION_ERRORS
|
|
# define SPLIT_MAX_CONNECTION_ERRORS 10
|
|
#endif // SPLIT_MAX_CONNECTION_ERRORS
|
|
|
|
// How long (in milliseconds) to block all connection attempts after the communication has been flagged as disconnected.
|
|
// One communication attempt will be allowed everytime this amount of time has passed since the last attempt. If that attempt succeeds, the communication is seen as working again.
|
|
// Set to 0 to disable communication throttling while disconnected
|
|
#ifndef SPLIT_CONNECTION_CHECK_TIMEOUT
|
|
# define SPLIT_CONNECTION_CHECK_TIMEOUT 500
|
|
#endif // SPLIT_CONNECTION_CHECK_TIMEOUT
|
|
|
|
static uint8_t connection_errors = 0;
|
|
|
|
volatile bool isLeftHand = true;
|
|
|
|
#if defined(SPLIT_USB_DETECT)
|
|
_Static_assert((SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL) <= UINT16_MAX, "Please lower SPLIT_USB_TIMEOUT and/or increase SPLIT_USB_TIMEOUT_POLL.");
|
|
static bool usbIsActive(void) {
|
|
for (uint16_t i = 0; i < (SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL); i++) {
|
|
// This will return true if a USB connection has been established
|
|
if (usb_connected_state()) {
|
|
return true;
|
|
}
|
|
wait_ms(SPLIT_USB_TIMEOUT_POLL);
|
|
}
|
|
return false;
|
|
}
|
|
#else
|
|
static inline bool usbIsActive(void) {
|
|
return usb_vbus_state();
|
|
}
|
|
#endif
|
|
|
|
#if defined(SPLIT_WATCHDOG_ENABLE)
|
|
# if !defined(SPLIT_WATCHDOG_TIMEOUT)
|
|
# if defined(SPLIT_USB_TIMEOUT)
|
|
# define SPLIT_WATCHDOG_TIMEOUT (SPLIT_USB_TIMEOUT + 100)
|
|
# else
|
|
# define SPLIT_WATCHDOG_TIMEOUT 3000
|
|
# endif
|
|
# endif
|
|
# if defined(SPLIT_USB_DETECT)
|
|
_Static_assert(SPLIT_USB_TIMEOUT < SPLIT_WATCHDOG_TIMEOUT, "SPLIT_WATCHDOG_TIMEOUT should not be below SPLIT_USB_TIMEOUT.");
|
|
# endif
|
|
_Static_assert(SPLIT_MAX_CONNECTION_ERRORS > 0, "SPLIT_WATCHDOG_ENABLE requires SPLIT_MAX_CONNECTION_ERRORS be above 0 for a functioning disconnection check.");
|
|
|
|
static uint32_t split_watchdog_started = 0;
|
|
static bool split_watchdog_done = false;
|
|
|
|
void split_watchdog_init(void) {
|
|
split_watchdog_started = timer_read32();
|
|
}
|
|
|
|
void split_watchdog_update(bool done) {
|
|
split_watchdog_done = done;
|
|
}
|
|
|
|
bool split_watchdog_check(void) {
|
|
if (!is_transport_connected()) {
|
|
split_watchdog_done = false;
|
|
}
|
|
return split_watchdog_done;
|
|
}
|
|
|
|
void split_watchdog_task(void) {
|
|
if (!split_watchdog_done && !is_keyboard_master()) {
|
|
if (timer_elapsed32(split_watchdog_started) > SPLIT_WATCHDOG_TIMEOUT) {
|
|
mcu_reset();
|
|
}
|
|
}
|
|
}
|
|
#endif // defined(SPLIT_WATCHDOG_ENABLE)
|
|
|
|
#ifdef SPLIT_HAND_MATRIX_GRID
|
|
void matrix_io_delay(void);
|
|
|
|
static uint8_t peek_matrix_intersection(pin_t out_pin, pin_t in_pin) {
|
|
setPinInputHigh(in_pin);
|
|
setPinOutput(out_pin);
|
|
writePinLow(out_pin);
|
|
// It's almost unnecessary, but wait until it's down to low, just in case.
|
|
wait_us(1);
|
|
uint8_t pin_state = readPin(in_pin);
|
|
// Set out_pin to a setting that is less susceptible to noise.
|
|
setPinInputHigh(out_pin);
|
|
matrix_io_delay(); // Wait for the pull-up to go HIGH.
|
|
return pin_state;
|
|
}
|
|
#endif
|
|
|
|
__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
|
|
# ifdef SPLIT_HAND_PIN_LOW_IS_LEFT
|
|
return !readPin(SPLIT_HAND_PIN);
|
|
# else
|
|
return readPin(SPLIT_HAND_PIN);
|
|
# endif
|
|
#elif defined(SPLIT_HAND_MATRIX_GRID)
|
|
# ifdef SPLIT_HAND_MATRIX_GRID_LOW_IS_RIGHT
|
|
return peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID);
|
|
# else
|
|
return !peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID);
|
|
# endif
|
|
#elif defined(EE_HANDS)
|
|
return eeconfig_read_handedness();
|
|
#elif defined(MASTER_RIGHT)
|
|
return !is_keyboard_master();
|
|
#endif
|
|
|
|
return is_keyboard_master();
|
|
}
|
|
|
|
__attribute__((weak)) bool is_keyboard_master(void) {
|
|
static enum { UNKNOWN, MASTER, SLAVE } usbstate = UNKNOWN;
|
|
|
|
// only check once, as this is called often
|
|
if (usbstate == UNKNOWN) {
|
|
usbstate = usbIsActive() ? MASTER : SLAVE;
|
|
|
|
// Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow
|
|
if (usbstate == SLAVE) {
|
|
usb_disconnect();
|
|
}
|
|
}
|
|
|
|
return (usbstate == MASTER);
|
|
}
|
|
|
|
// this code runs before the keyboard is fully initialized
|
|
void split_pre_init(void) {
|
|
#if defined(SPLIT_HAND_PIN)
|
|
setPinInput(SPLIT_HAND_PIN);
|
|
wait_us(100);
|
|
#elif defined(EE_HANDS)
|
|
if (!eeconfig_is_enabled()) {
|
|
eeconfig_init();
|
|
}
|
|
// TODO: Remove once ARM has a way to configure EECONFIG_HANDEDNESS within the emulated eeprom via dfu-util or another tool
|
|
# if defined(INIT_EE_HANDS_LEFT) || defined(INIT_EE_HANDS_RIGHT)
|
|
# if defined(INIT_EE_HANDS_LEFT)
|
|
# pragma message "Faking EE_HANDS for left hand"
|
|
const bool should_be_left = true;
|
|
# else
|
|
# pragma message "Faking EE_HANDS for right hand"
|
|
const bool should_be_left = false;
|
|
# endif
|
|
bool is_left = eeconfig_read_handedness();
|
|
if (is_left != should_be_left) {
|
|
eeconfig_update_handedness(should_be_left);
|
|
}
|
|
# endif // defined(INIT_EE_HANDS_LEFT) || defined(INIT_EE_HANDS_RIGHT)
|
|
#endif
|
|
isLeftHand = is_keyboard_left();
|
|
|
|
#if defined(RGBLIGHT_ENABLE) && defined(RGBLED_SPLIT)
|
|
uint8_t num_rgb_leds_split[2] = RGBLED_SPLIT;
|
|
if (isLeftHand) {
|
|
rgblight_set_clipping_range(0, num_rgb_leds_split[0]);
|
|
} else {
|
|
rgblight_set_clipping_range(num_rgb_leds_split[0], num_rgb_leds_split[1]);
|
|
}
|
|
#endif
|
|
|
|
if (is_keyboard_master()) {
|
|
transport_master_init();
|
|
}
|
|
}
|
|
|
|
// this code runs after the keyboard is fully initialized
|
|
// - avoids race condition during matrix_init_quantum where slave can start
|
|
// receiving before the init process has completed
|
|
void split_post_init(void) {
|
|
if (!is_keyboard_master()) {
|
|
transport_slave_init();
|
|
#if defined(SPLIT_WATCHDOG_ENABLE)
|
|
split_watchdog_init();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
bool is_transport_connected(void) {
|
|
return connection_errors < SPLIT_MAX_CONNECTION_ERRORS;
|
|
}
|
|
|
|
bool transport_master_if_connected(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
|
|
#if SPLIT_MAX_CONNECTION_ERRORS > 0 && SPLIT_CONNECTION_CHECK_TIMEOUT > 0
|
|
// Throttle transaction attempts if target doesn't seem to be connected
|
|
// Without this, a solo half becomes unusable due to constant read timeouts
|
|
static uint16_t connection_check_timer = 0;
|
|
const bool is_disconnected = !is_transport_connected();
|
|
if (is_disconnected && timer_elapsed(connection_check_timer) < SPLIT_CONNECTION_CHECK_TIMEOUT) {
|
|
return false;
|
|
}
|
|
#endif // SPLIT_MAX_CONNECTION_ERRORS > 0 && SPLIT_CONNECTION_CHECK_TIMEOUT > 0
|
|
|
|
__attribute__((unused)) bool okay = transport_master(master_matrix, slave_matrix);
|
|
#if SPLIT_MAX_CONNECTION_ERRORS > 0
|
|
if (!okay) {
|
|
if (connection_errors < UINT8_MAX) {
|
|
connection_errors++;
|
|
}
|
|
# if SPLIT_CONNECTION_CHECK_TIMEOUT > 0
|
|
bool connected = is_transport_connected();
|
|
if (!connected) {
|
|
connection_check_timer = timer_read();
|
|
dprintln("Target disconnected, throttling connection attempts");
|
|
}
|
|
return connected;
|
|
} else if (is_disconnected) {
|
|
dprintln("Target connected");
|
|
# endif // SPLIT_CONNECTION_CHECK_TIMEOUT > 0
|
|
}
|
|
|
|
connection_errors = 0;
|
|
#endif // SPLIT_MAX_CONNECTION_ERRORS > 0
|
|
return true;
|
|
}
|