qmk_firmware/quantum/quantum.h

/* Copyright 2016-2018 Erez Zukerman, Jack Humbert, Yiancar
 *
 * 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 2 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/>.
 */
#pragma once

#if defined(__AVR__)
#    include <avr/pgmspace.h>
#    include <avr/io.h>
#    include <avr/interrupt.h>
#endif
#if defined(PROTOCOL_CHIBIOS)
#    include <hal.h>
#    include "chibios_config.h"
#endif

#include "wait.h"
#include "matrix.h"
#include "keymap.h"

#ifdef BACKLIGHT_ENABLE
#    ifdef LED_MATRIX_ENABLE
#        include "led_matrix.h"
#    else
#        include "backlight.h"
#    endif
#endif

#if defined(RGBLIGHT_ENABLE)
#    include "rgblight.h"
#elif defined(RGB_MATRIX_ENABLE)
// Dummy define RGBLIGHT_MODE_xxxx
#    define RGBLIGHT_H_DUMMY_DEFINE
#    include "rgblight.h"
#endif

#ifdef RGB_MATRIX_ENABLE
#    include "rgb_matrix.h"
#endif

#include "action_layer.h"
#include "eeconfig.h"
#include "bootloader.h"
#include "timer.h"
#include "sync_timer.h"
#include "config_common.h"
#include "led.h"
#include "action_util.h"
#include "action_tapping.h"
#include "print.h"
#include "send_string_keycodes.h"
#include "suspend.h"
#include <stddef.h>
#include <stdlib.h>

extern layer_state_t default_layer_state;

#ifndef NO_ACTION_LAYER
extern layer_state_t layer_state;
#endif

#if defined(SEQUENCER_ENABLE)
#    include "sequencer.h"
#    include "process_sequencer.h"
#endif

#if defined(MIDI_ENABLE) && defined(MIDI_ADVANCED)
#    include "process_midi.h"
#endif

#ifdef AUDIO_ENABLE
#    include "audio.h"
#    include "process_audio.h"
#    ifdef AUDIO_CLICKY
#        include "process_clicky.h"
#    endif
#endif

#ifdef STENO_ENABLE
#    include "process_steno.h"
#endif

#if defined(AUDIO_ENABLE) || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))
#    include "process_music.h"
#endif

#ifdef BACKLIGHT_ENABLE
#    include "process_backlight.h"
#endif

#ifdef LEADER_ENABLE
#    include "process_leader.h"
#endif

#ifdef UNICODE_ENABLE
#    include "process_unicode.h"
#endif

#ifdef UCIS_ENABLE
#    include "process_ucis.h"
#endif

#ifdef UNICODEMAP_ENABLE
#    include "process_unicodemap.h"
#endif

#ifdef TAP_DANCE_ENABLE
#    include "process_tap_dance.h"
#endif

#ifdef PRINTING_ENABLE
#    include "process_printer.h"
#endif

#ifdef AUTO_SHIFT_ENABLE
#    include "process_auto_shift.h"
#endif

#ifdef COMBO_ENABLE
#    include "process_combo.h"
#endif

#ifdef KEY_LOCK_ENABLE
#    include "process_key_lock.h"
#endif

#ifdef TERMINAL_ENABLE
#    include "process_terminal.h"
#else
#    include "process_terminal_nop.h"
#endif

#ifdef SPACE_CADET_ENABLE
#    include "process_space_cadet.h"
#endif

#ifdef MAGIC_KEYCODE_ENABLE
#    include "process_magic.h"
#endif

#ifdef JOYSTICK_ENABLE
#    include "process_joystick.h"
#endif

#ifdef GRAVE_ESC_ENABLE
#    include "process_grave_esc.h"
#endif

#if defined(RGBLIGHT_ENABLE) || defined(RGB_MATRIX_ENABLE)
#    include "process_rgb.h"
#endif

#ifdef HD44780_ENABLE
#    include "hd44780.h"
#endif

#ifdef HAPTIC_ENABLE
#    include "haptic.h"
#endif

#ifdef OLED_DRIVER_ENABLE
#    include "oled_driver.h"
#endif

#ifdef DIP_SWITCH_ENABLE
#    include "dip_switch.h"
#endif

#ifdef DYNAMIC_MACRO_ENABLE
#    include "process_dynamic_macro.h"
#endif

#ifdef DYNAMIC_KEYMAP_ENABLE
#    include "dynamic_keymap.h"
#endif

#ifdef VIA_ENABLE
#    include "via.h"
#endif

#ifdef WPM_ENABLE
#    include "wpm.h"
#endif

// Function substitutions to ease GPIO manipulation
#if defined(__AVR__)
typedef uint8_t pin_t;

#    define setPinInput(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
#    define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
#    define setPinInputLow(pin) _Static_assert(0, "AVR processors cannot implement an input as pull low")
#    define setPinOutput(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF))

#    define writePinHigh(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
#    define writePinLow(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
#    define writePin(pin, level) ((level) ? writePinHigh(pin) : writePinLow(pin))

#    define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF)))

#    define togglePin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF))

/*   The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
 *   But here's more margin to make it two clocks. */
#    if !defined(GPIO_INPUT_PIN_DELAY)
#        define GPIO_INPUT_PIN_DELAY 2
#    endif
#    define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)

#elif defined(PROTOCOL_CHIBIOS)
typedef ioline_t pin_t;

#    define setPinInput(pin) palSetLineMode(pin, PAL_MODE_INPUT)
#    define setPinInputHigh(pin) palSetLineMode(pin, PAL_MODE_INPUT_PULLUP)
#    define setPinInputLow(pin) palSetLineMode(pin, PAL_MODE_INPUT_PULLDOWN)
#    define setPinOutput(pin) palSetLineMode(pin, PAL_MODE_OUTPUT_PUSHPULL)

#    define writePinHigh(pin) palSetLine(pin)
#    define writePinLow(pin) palClearLine(pin)
#    define writePin(pin, level) ((level) ? (writePinHigh(pin)) : (writePinLow(pin)))

#    define readPin(pin) palReadLine(pin)

#    define togglePin(pin) palToggleLine(pin)

#endif

#if defined(__ARMEL__) || defined(__ARMEB__)
/* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
 * to which the GPIO is connected.
 * The connected buses differ depending on the various series of MCUs.
 * And since the instruction execution clock of the CPU and the bus clock of GPIO are different,
 * there is a delay of several clocks to read the change of the input signal.
 *
 * Define this delay with the GPIO_INPUT_PIN_DELAY macro.
 * If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used.
 * (A fairly large value of 0.25 microseconds is set.)
 */
#    if !defined(GPIO_INPUT_PIN_DELAY)
#        if defined(STM32_SYSCLK)
#            define GPIO_INPUT_PIN_DELAY (STM32_SYSCLK / 1000000L / 4)
#        elif defined(KINETIS_SYSCLK_FREQUENCY)
#            define GPIO_INPUT_PIN_DELAY (KINETIS_SYSCLK_FREQUENCY / 1000000L / 4)
#        endif
#    endif
#    define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
#endif

// Atomic macro to help make GPIO and other controls atomic.
#ifdef IGNORE_ATOMIC_BLOCK
/* do nothing atomic macro */
#    define ATOMIC_BLOCK for (uint8_t __ToDo = 1; __ToDo; __ToDo = 0)
#    define ATOMIC_BLOCK_RESTORESTATE ATOMIC_BLOCK
#    define ATOMIC_BLOCK_FORCEON ATOMIC_BLOCK

#elif defined(__AVR__)
/* atomic macro for AVR */
#    include <util/atomic.h>

#    define ATOMIC_BLOCK_RESTORESTATE ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
#    define ATOMIC_BLOCK_FORCEON ATOMIC_BLOCK(ATOMIC_FORCEON)

#elif defined(PROTOCOL_CHIBIOS) || defined(PROTOCOL_ARM_ATSAM)
/* atomic macro for ChibiOS / ARM ATSAM */
#    if defined(PROTOCOL_ARM_ATSAM)
#        include "arm_atsam_protocol.h"
#    endif

static __inline__ uint8_t __interrupt_disable__(void) {
#    if defined(PROTOCOL_CHIBIOS)
    chSysLock();
#    endif
#    if defined(PROTOCOL_ARM_ATSAM)
    __disable_irq();
#    endif
    return 1;
}

static __inline__ void __interrupt_enable__(const uint8_t *__s) {
#    if defined(PROTOCOL_CHIBIOS)
    chSysUnlock();
#    endif
#    if defined(PROTOCOL_ARM_ATSAM)
    __enable_irq();
#    endif
    __asm__ volatile("" ::: "memory");
    (void)__s;
}

#    define ATOMIC_BLOCK(type) for (type, __ToDo = __interrupt_disable__(); __ToDo; __ToDo = 0)
#    define ATOMIC_FORCEON uint8_t sreg_save __attribute__((__cleanup__(__interrupt_enable__))) = 0

#    define ATOMIC_BLOCK_RESTORESTATE _Static_assert(0, "ATOMIC_BLOCK_RESTORESTATE dose not implement")
#    define ATOMIC_BLOCK_FORCEON ATOMIC_BLOCK(ATOMIC_FORCEON)

/* Other platform */
#else

#    define ATOMIC_BLOCK_RESTORESTATE _Static_assert(0, "ATOMIC_BLOCK_RESTORESTATE dose not implement")
#    define ATOMIC_BLOCK_FORCEON _Static_assert(0, "ATOMIC_BLOCK_FORCEON dose not implement")

#endif

#define SEND_STRING(string) send_string_P(PSTR(string))
#define SEND_STRING_DELAY(string, interval) send_string_with_delay_P(PSTR(string), interval)

// Look-Up Tables (LUTs) to convert ASCII character to keycode sequence.
extern const uint8_t ascii_to_keycode_lut[128];
extern const uint8_t ascii_to_shift_lut[16];
extern const uint8_t ascii_to_altgr_lut[16];
extern const uint8_t ascii_to_dead_lut[16];
// clang-format off
#define KCLUT_ENTRY(a, b, c, d, e, f, g, h) \
    ( ((a) ? 1 : 0) << 0 \
    | ((b) ? 1 : 0) << 1 \
    | ((c) ? 1 : 0) << 2 \
    | ((d) ? 1 : 0) << 3 \
    | ((e) ? 1 : 0) << 4 \
    | ((f) ? 1 : 0) << 5 \
    | ((g) ? 1 : 0) << 6 \
    | ((h) ? 1 : 0) << 7 )
// clang-format on

void send_string(const char *str);
void send_string_with_delay(const char *str, uint8_t interval);
void send_string_P(const char *str);
void send_string_with_delay_P(const char *str, uint8_t interval);
void send_char(char ascii_code);

// For tri-layer
void          update_tri_layer(uint8_t layer1, uint8_t layer2, uint8_t layer3);
layer_state_t update_tri_layer_state(layer_state_t state, uint8_t layer1, uint8_t layer2, uint8_t layer3);

void set_single_persistent_default_layer(uint8_t default_layer);

void tap_random_base64(void);

#define IS_LAYER_ON(layer) layer_state_is(layer)
#define IS_LAYER_OFF(layer) !layer_state_is(layer)

#define IS_LAYER_ON_STATE(state, layer) layer_state_cmp(state, layer)
#define IS_LAYER_OFF_STATE(state, layer) !layer_state_cmp(state, layer)

void     matrix_init_kb(void);
void     matrix_scan_kb(void);
void     matrix_init_user(void);
void     matrix_scan_user(void);
uint16_t get_record_keycode(keyrecord_t *record, bool update_layer_cache);
uint16_t get_event_keycode(keyevent_t event, bool update_layer_cache);
bool     process_action_kb(keyrecord_t *record);
bool     process_record_kb(uint16_t keycode, keyrecord_t *record);
bool     process_record_user(uint16_t keycode, keyrecord_t *record);
void     post_process_record_kb(uint16_t keycode, keyrecord_t *record);
void     post_process_record_user(uint16_t keycode, keyrecord_t *record);

#ifndef BOOTMAGIC_LITE_COLUMN
#    define BOOTMAGIC_LITE_COLUMN 0
#endif
#ifndef BOOTMAGIC_LITE_ROW
#    define BOOTMAGIC_LITE_ROW 0
#endif

void bootmagic_lite(void);

void reset_keyboard(void);

void startup_user(void);
void shutdown_user(void);

void register_code16(uint16_t code);
void unregister_code16(uint16_t code);
void tap_code16(uint16_t code);

void     send_dword(uint32_t number);
void     send_word(uint16_t number);
void     send_byte(uint8_t number);
void     send_nibble(uint8_t number);
uint16_t hex_to_keycode(uint8_t hex);

void led_set_user(uint8_t usb_led);
void led_set_kb(uint8_t usb_led);
bool led_update_user(led_t led_state);
bool led_update_kb(led_t led_state);

void api_send_unicode(uint32_t unicode);