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263 lines
8.6 KiB
263 lines
8.6 KiB
/* Copyright 2021 QMK |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#include "split_util.h" |
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#include "matrix.h" |
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#include "keyboard.h" |
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#include "timer.h" |
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#include "transport.h" |
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#include "quantum.h" |
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#include "wait.h" |
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#include "usb_util.h" |
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#ifdef EE_HANDS |
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# include "eeconfig.h" |
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#endif |
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#if defined(RGBLIGHT_ENABLE) && defined(RGBLED_SPLIT) |
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# include "rgblight.h" |
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#endif |
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#ifndef SPLIT_USB_TIMEOUT |
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# define SPLIT_USB_TIMEOUT 2000 |
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#endif |
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#ifndef SPLIT_USB_TIMEOUT_POLL |
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# define SPLIT_USB_TIMEOUT_POLL 10 |
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#endif |
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// Max number of consecutive failed communications (one per scan cycle) before the communication is seen as disconnected. |
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// Set to 0 to disable the disconnection check altogether. |
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#ifndef SPLIT_MAX_CONNECTION_ERRORS |
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# define SPLIT_MAX_CONNECTION_ERRORS 10 |
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#endif // SPLIT_MAX_CONNECTION_ERRORS |
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// How long (in milliseconds) to block all connection attempts after the communication has been flagged as disconnected. |
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// 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. |
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// Set to 0 to disable communication throttling while disconnected |
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#ifndef SPLIT_CONNECTION_CHECK_TIMEOUT |
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# define SPLIT_CONNECTION_CHECK_TIMEOUT 500 |
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#endif // SPLIT_CONNECTION_CHECK_TIMEOUT |
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static uint8_t connection_errors = 0; |
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volatile bool isLeftHand = true; |
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#if defined(SPLIT_USB_DETECT) |
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_Static_assert((SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL) <= UINT16_MAX, "Please lower SPLIT_USB_TIMEOUT and/or increase SPLIT_USB_TIMEOUT_POLL."); |
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static bool usbIsActive(void) { |
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for (uint16_t i = 0; i < (SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL); i++) { |
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// This will return true if a USB connection has been established |
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if (usb_connected_state()) { |
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return true; |
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} |
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wait_ms(SPLIT_USB_TIMEOUT_POLL); |
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} |
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return false; |
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} |
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#else |
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static inline bool usbIsActive(void) { |
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return usb_vbus_state(); |
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} |
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#endif |
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#if defined(SPLIT_WATCHDOG_ENABLE) |
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# if !defined(SPLIT_WATCHDOG_TIMEOUT) |
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# if defined(SPLIT_USB_TIMEOUT) |
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# define SPLIT_WATCHDOG_TIMEOUT (SPLIT_USB_TIMEOUT + 100) |
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# else |
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# define SPLIT_WATCHDOG_TIMEOUT 3000 |
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# endif |
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# endif |
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# if defined(SPLIT_USB_DETECT) |
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_Static_assert(SPLIT_USB_TIMEOUT < SPLIT_WATCHDOG_TIMEOUT, "SPLIT_WATCHDOG_TIMEOUT should not be below SPLIT_USB_TIMEOUT."); |
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# endif |
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_Static_assert(SPLIT_MAX_CONNECTION_ERRORS > 0, "SPLIT_WATCHDOG_ENABLE requires SPLIT_MAX_CONNECTION_ERRORS be above 0 for a functioning disconnection check."); |
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static uint32_t split_watchdog_started = 0; |
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static bool split_watchdog_done = false; |
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void split_watchdog_init(void) { |
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split_watchdog_started = timer_read32(); |
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} |
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void split_watchdog_update(bool done) { |
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split_watchdog_done = done; |
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} |
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bool split_watchdog_check(void) { |
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if (!is_transport_connected()) { |
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split_watchdog_done = false; |
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} |
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return split_watchdog_done; |
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} |
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void split_watchdog_task(void) { |
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if (!split_watchdog_done && !is_keyboard_master()) { |
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if (timer_elapsed32(split_watchdog_started) > SPLIT_WATCHDOG_TIMEOUT) { |
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mcu_reset(); |
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} |
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} |
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} |
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#endif // defined(SPLIT_WATCHDOG_ENABLE) |
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#ifdef SPLIT_HAND_MATRIX_GRID |
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void matrix_io_delay(void); |
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static uint8_t peek_matrix_intersection(pin_t out_pin, pin_t in_pin) { |
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setPinInputHigh(in_pin); |
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setPinOutput(out_pin); |
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writePinLow(out_pin); |
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// It's almost unnecessary, but wait until it's down to low, just in case. |
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wait_us(1); |
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uint8_t pin_state = readPin(in_pin); |
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// Set out_pin to a setting that is less susceptible to noise. |
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setPinInputHigh(out_pin); |
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matrix_io_delay(); // Wait for the pull-up to go HIGH. |
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return pin_state; |
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} |
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#endif |
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__attribute__((weak)) bool is_keyboard_left(void) { |
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#if defined(SPLIT_HAND_PIN) |
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// Test pin SPLIT_HAND_PIN for High/Low, if low it's right hand |
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# ifdef SPLIT_HAND_PIN_LOW_IS_LEFT |
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return !readPin(SPLIT_HAND_PIN); |
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# else |
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return readPin(SPLIT_HAND_PIN); |
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# endif |
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#elif defined(SPLIT_HAND_MATRIX_GRID) |
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# ifdef SPLIT_HAND_MATRIX_GRID_LOW_IS_RIGHT |
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return peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID); |
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# else |
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return !peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID); |
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# endif |
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#elif defined(EE_HANDS) |
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return eeconfig_read_handedness(); |
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#elif defined(MASTER_RIGHT) |
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return !is_keyboard_master(); |
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#endif |
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return is_keyboard_master(); |
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} |
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__attribute__((weak)) bool is_keyboard_master(void) { |
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static enum { UNKNOWN, MASTER, SLAVE } usbstate = UNKNOWN; |
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// only check once, as this is called often |
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if (usbstate == UNKNOWN) { |
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usbstate = usbIsActive() ? MASTER : SLAVE; |
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// Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow |
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if (usbstate == SLAVE) { |
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usb_disconnect(); |
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} |
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} |
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return (usbstate == MASTER); |
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} |
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// this code runs before the keyboard is fully initialized |
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void split_pre_init(void) { |
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#if defined(SPLIT_HAND_PIN) |
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setPinInput(SPLIT_HAND_PIN); |
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wait_us(100); |
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#elif defined(EE_HANDS) |
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if (!eeconfig_is_enabled()) { |
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eeconfig_init(); |
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} |
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// TODO: Remove once ARM has a way to configure EECONFIG_HANDEDNESS within the emulated eeprom via dfu-util or another tool |
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# if defined(INIT_EE_HANDS_LEFT) || defined(INIT_EE_HANDS_RIGHT) |
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# if defined(INIT_EE_HANDS_LEFT) |
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# pragma message "Faking EE_HANDS for left hand" |
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const bool should_be_left = true; |
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# else |
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# pragma message "Faking EE_HANDS for right hand" |
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const bool should_be_left = false; |
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# endif |
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bool is_left = eeconfig_read_handedness(); |
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if (is_left != should_be_left) { |
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eeconfig_update_handedness(should_be_left); |
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} |
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# endif // defined(INIT_EE_HANDS_LEFT) || defined(INIT_EE_HANDS_RIGHT) |
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#endif |
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isLeftHand = is_keyboard_left(); |
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#if defined(RGBLIGHT_ENABLE) && defined(RGBLED_SPLIT) |
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uint8_t num_rgb_leds_split[2] = RGBLED_SPLIT; |
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if (isLeftHand) { |
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rgblight_set_clipping_range(0, num_rgb_leds_split[0]); |
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} else { |
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rgblight_set_clipping_range(num_rgb_leds_split[0], num_rgb_leds_split[1]); |
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} |
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#endif |
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if (is_keyboard_master()) { |
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#if defined(USE_I2C) && defined(SSD1306OLED) |
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matrix_master_OLED_init(); |
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#endif |
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transport_master_init(); |
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} |
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} |
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// this code runs after the keyboard is fully initialized |
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// - avoids race condition during matrix_init_quantum where slave can start |
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// receiving before the init process has completed |
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void split_post_init(void) { |
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if (!is_keyboard_master()) { |
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transport_slave_init(); |
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#if defined(SPLIT_WATCHDOG_ENABLE) |
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split_watchdog_init(); |
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#endif |
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} |
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} |
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bool is_transport_connected(void) { |
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return connection_errors < SPLIT_MAX_CONNECTION_ERRORS; |
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} |
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bool transport_master_if_connected(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) { |
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#if SPLIT_MAX_CONNECTION_ERRORS > 0 && SPLIT_CONNECTION_CHECK_TIMEOUT > 0 |
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// Throttle transaction attempts if target doesn't seem to be connected |
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// Without this, a solo half becomes unusable due to constant read timeouts |
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static uint16_t connection_check_timer = 0; |
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const bool is_disconnected = !is_transport_connected(); |
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if (is_disconnected && timer_elapsed(connection_check_timer) < SPLIT_CONNECTION_CHECK_TIMEOUT) { |
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return false; |
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} |
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#endif // SPLIT_MAX_CONNECTION_ERRORS > 0 && SPLIT_CONNECTION_CHECK_TIMEOUT > 0 |
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__attribute__((unused)) bool okay = transport_master(master_matrix, slave_matrix); |
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#if SPLIT_MAX_CONNECTION_ERRORS > 0 |
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if (!okay) { |
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if (connection_errors < UINT8_MAX) { |
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connection_errors++; |
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} |
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# if SPLIT_CONNECTION_CHECK_TIMEOUT > 0 |
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bool connected = is_transport_connected(); |
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if (!connected) { |
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connection_check_timer = timer_read(); |
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dprintln("Target disconnected, throttling connection attempts"); |
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} |
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return connected; |
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} else if (is_disconnected) { |
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dprintln("Target connected"); |
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# endif // SPLIT_CONNECTION_CHECK_TIMEOUT > 0 |
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} |
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connection_errors = 0; |
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#endif // SPLIT_MAX_CONNECTION_ERRORS > 0 |
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return true; |
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}
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