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MarlinFirmware/Marlin/src/lcd/buttons.h
2021-09-06 23:06:27 -05:00

225 lines
6.6 KiB
C

/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* 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 <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "../inc/MarlinConfig.h"
#if ((!HAS_ADC_BUTTONS && IS_NEWPANEL) || BUTTONS_EXIST(EN1, EN2)) && !IS_TFTGLCD_PANEL
#define HAS_ENCODER_WHEEL 1
#endif
#if HAS_ENCODER_WHEEL || ANY_BUTTON(ENC, BACK, UP, DWN, LFT, RT)
#define HAS_DIGITAL_BUTTONS 1
#endif
#if !HAS_ADC_BUTTONS && (IS_RRW_KEYPAD || (HAS_WIRED_LCD && !IS_NEWPANEL))
#define HAS_SHIFT_ENCODER 1
#endif
// I2C buttons must be read in the main thread
#if ANY(LCD_I2C_VIKI, LCD_I2C_PANELOLU2, IS_TFTGLCD_PANEL)
#define HAS_SLOW_BUTTONS 1
#endif
#if HAS_ENCODER_WHEEL
#define ENCODER_PHASE_0 0
#define ENCODER_PHASE_1 2
#define ENCODER_PHASE_2 3
#define ENCODER_PHASE_3 1
#endif
#if IS_RRW_KEYPAD
#define BTN_OFFSET 0 // Bit offset into buttons for shift register values
#define BLEN_KEYPAD_F3 0
#define BLEN_KEYPAD_F2 1
#define BLEN_KEYPAD_F1 2
#define BLEN_KEYPAD_DOWN 3
#define BLEN_KEYPAD_RIGHT 4
#define BLEN_KEYPAD_MIDDLE 5
#define BLEN_KEYPAD_UP 6
#define BLEN_KEYPAD_LEFT 7
#define EN_KEYPAD_F1 _BV(BTN_OFFSET + BLEN_KEYPAD_F1)
#define EN_KEYPAD_F2 _BV(BTN_OFFSET + BLEN_KEYPAD_F2)
#define EN_KEYPAD_F3 _BV(BTN_OFFSET + BLEN_KEYPAD_F3)
#define EN_KEYPAD_DOWN _BV(BTN_OFFSET + BLEN_KEYPAD_DOWN)
#define EN_KEYPAD_RIGHT _BV(BTN_OFFSET + BLEN_KEYPAD_RIGHT)
#define EN_KEYPAD_MIDDLE _BV(BTN_OFFSET + BLEN_KEYPAD_MIDDLE)
#define EN_KEYPAD_UP _BV(BTN_OFFSET + BLEN_KEYPAD_UP)
#define EN_KEYPAD_LEFT _BV(BTN_OFFSET + BLEN_KEYPAD_LEFT)
#define RRK(B) (keypad_buttons & (B))
#ifdef EN_C
#define BUTTON_CLICK() ((buttons & EN_C) || RRK(EN_KEYPAD_MIDDLE))
#else
#define BUTTON_CLICK() RRK(EN_KEYPAD_MIDDLE)
#endif
#endif
#if EITHER(HAS_DIGITAL_BUTTONS, HAS_DWIN_E3V2)
// Wheel spin pins where BA is 00, 10, 11, 01 (1 bit always changes)
#define BLEN_A 0
#define BLEN_B 1
#define EN_A _BV(BLEN_A)
#define EN_B _BV(BLEN_B)
#define _BUTTON_PRESSED(BN) !READ(BTN_##BN)
#if BUTTON_EXISTS(ENC) || HAS_TOUCH_BUTTONS
#define BLEN_C 2
#define EN_C _BV(BLEN_C)
#endif
#if ENABLED(LCD_I2C_VIKI)
#include <LiquidTWI2.h>
#define B_I2C_BTN_OFFSET 3 // (the first three bit positions reserved for EN_A, EN_B, EN_C)
// button and encoder bit positions within 'buttons'
#define B_LE (BUTTON_LEFT << B_I2C_BTN_OFFSET) // The remaining normalized buttons are all read via I2C
#define B_UP (BUTTON_UP << B_I2C_BTN_OFFSET)
#define B_MI (BUTTON_SELECT << B_I2C_BTN_OFFSET)
#define B_DW (BUTTON_DOWN << B_I2C_BTN_OFFSET)
#define B_RI (BUTTON_RIGHT << B_I2C_BTN_OFFSET)
#if BUTTON_EXISTS(ENC) // The pause/stop/restart button is connected to BTN_ENC when used
#define B_ST (EN_C) // Map the pause/stop/resume button into its normalized functional name
#define BUTTON_CLICK() (buttons & (B_MI|B_RI|B_ST)) // Pause/stop also acts as click until a proper pause/stop is implemented.
#else
#define BUTTON_CLICK() (buttons & (B_MI|B_RI))
#endif
// I2C buttons take too long to read inside an interrupt context and so we read them during lcd_update
#elif ENABLED(LCD_I2C_PANELOLU2)
#if !BUTTON_EXISTS(ENC) // Use I2C if not directly connected to a pin
#define B_I2C_BTN_OFFSET 3 // (the first three bit positions reserved for EN_A, EN_B, EN_C)
#define B_MI (PANELOLU2_ENCODER_C << B_I2C_BTN_OFFSET) // requires LiquidTWI2 library v1.2.3 or later
#define BUTTON_CLICK() (buttons & B_MI)
#endif
#endif
#else
#undef BUTTON_EXISTS
#define BUTTON_EXISTS(...) false
// Dummy button, never pressed
#define _BUTTON_PRESSED(BN) false
// Shift register bits correspond to buttons:
#define BL_LE 7 // Left
#define BL_UP 6 // Up
#define BL_MI 5 // Middle
#define BL_DW 4 // Down
#define BL_RI 3 // Right
#define BL_ST 2 // Red Button
#define B_LE _BV(BL_LE)
#define B_UP _BV(BL_UP)
#define B_MI _BV(BL_MI)
#define B_DW _BV(BL_DW)
#define B_RI _BV(BL_RI)
#define B_ST _BV(BL_ST)
#ifndef BUTTON_CLICK
#define BUTTON_CLICK() (buttons & (B_MI|B_ST))
#endif
#endif
#ifndef EN_A
#define EN_A 0
#endif
#ifndef EN_B
#define EN_B 0
#endif
#ifndef EN_C
#define EN_C 0
#endif
#if BUTTON_EXISTS(BACK) || EITHER(HAS_TOUCH_BUTTONS, IS_TFTGLCD_PANEL)
#define BLEN_D 3
#define EN_D _BV(BLEN_D)
#else
#define EN_D 0
#endif
#define BUTTON_PRESSED(BN) (_BUTTON_PRESSED_##BN)
#if BUTTON_EXISTS(EN1)
#define _BUTTON_PRESSED_EN1 _BUTTON_PRESSED(EN1)
#else
#define _BUTTON_PRESSED_EN1 false
#endif
#if BUTTON_EXISTS(EN2)
#define _BUTTON_PRESSED_EN2 _BUTTON_PRESSED(EN2)
#else
#define _BUTTON_PRESSED_EN2 false
#endif
#if BUTTON_EXISTS(ENC_EN)
#define _BUTTON_PRESSED_ENC_EN _BUTTON_PRESSED(ENC_EN)
#else
#define _BUTTON_PRESSED_ENC_EN false
#endif
#if BUTTON_EXISTS(ENC)
#define _BUTTON_PRESSED_ENC _BUTTON_PRESSED(ENC)
#else
#define _BUTTON_PRESSED_ENC false
#endif
#if BUTTON_EXISTS(UP)
#define _BUTTON_PRESSED_UP _BUTTON_PRESSED(UP)
#else
#define _BUTTON_PRESSED_UP false
#endif
#if BUTTON_EXISTS(DWN)
#define _BUTTON_PRESSED_DWN _BUTTON_PRESSED(DWN)
#else
#define _BUTTON_PRESSED_DWN false
#endif
#if BUTTON_EXISTS(LFT)
#define _BUTTON_PRESSED_LFT _BUTTON_PRESSED(LFT)
#else
#define _BUTTON_PRESSED_LFT false
#endif
#if BUTTON_EXISTS(RT)
#define _BUTTON_PRESSED_RT _BUTTON_PRESSED(RT)
#else
#define _BUTTON_PRESSED_RT false
#endif
#if BUTTON_EXISTS(BACK)
#define _BUTTON_PRESSED_BACK _BUTTON_PRESSED(BACK)
#else
#define _BUTTON_PRESSED_BACK false
#endif
#ifndef BUTTON_CLICK
#if EN_C > 0
#define BUTTON_CLICK() (buttons & EN_C)
#else
#define BUTTON_CLICK() false
#endif
#endif
#if EN_D > 0
#define LCD_BACK_CLICKED() (buttons & EN_D)
#else
#define LCD_BACK_CLICKED() false
#endif