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- /**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- *
- * 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 <stdint.h>
- #include <stdarg.h>
- #undef min
- #undef max
- #include <algorithm>
- #include "pinmapping.h"
-
- void _printf (const char *format, ...);
- void _putc(uint8_t c);
- uint8_t _getc();
-
- //arduino: Print.h
- #define DEC 10
- #define HEX 16
- #define OCT 8
- #define BIN 2
- //arduino: binary.h (weird defines)
- #define B01 1
- #define B10 2
-
- #include "../shared/Marduino.h"
- #include "../shared/math_32bit.h"
- #include "../shared/HAL_SPI.h"
- #include "fastio.h"
- #include "serial.h"
-
- // ------------------------
- // Defines
- // ------------------------
-
- #define CPU_32_BIT
- #define SHARED_SERVOS HAS_SERVOS // Use shared/servos.cpp
-
- #define F_CPU 100000000
- #define SystemCoreClock F_CPU
-
- #define CPU_ST7920_DELAY_1 600
- #define CPU_ST7920_DELAY_2 750
- #define CPU_ST7920_DELAY_3 750
-
- // ------------------------
- // Serial ports
- // ------------------------
-
- extern MSerialT serial_stream_0;
- extern MSerialT serial_stream_1;
- extern MSerialT serial_stream_2;
- extern MSerialT serial_stream_3;
-
- #define _MSERIAL(X) serial_stream_##X
- #define MSERIAL(X) _MSERIAL(X)
-
- #if WITHIN(SERIAL_PORT, 0, 3)
- #define MYSERIAL1 MSERIAL(SERIAL_PORT)
- #else
- #error "SERIAL_PORT must be from 0 to 3. Please update your configuration."
- #endif
-
- #ifdef SERIAL_PORT_2
- #if WITHIN(SERIAL_PORT_2, 0, 3)
- #define MYSERIAL2 MSERIAL(SERIAL_PORT_2)
- #else
- #error "SERIAL_PORT_2 must be from 0 to 3. Please update your configuration."
- #endif
- #endif
-
- #ifdef MMU2_SERIAL_PORT
- #if WITHIN(MMU2_SERIAL_PORT, 0, 3)
- #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
- #else
- #error "MMU2_SERIAL_PORT must be from 0 to 3. Please update your configuration."
- #endif
- #endif
-
- #ifdef LCD_SERIAL_PORT
- #if WITHIN(LCD_SERIAL_PORT, 0, 3)
- #define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
- #else
- #error "LCD_SERIAL_PORT must be from 0 to 3. Please update your configuration."
- #endif
- #endif
-
- // ------------------------
- // Interrupts
- // ------------------------
-
- #define CRITICAL_SECTION_START()
- #define CRITICAL_SECTION_END()
-
- // ------------------------
- // ADC
- // ------------------------
-
- #define HAL_ADC_VREF 5.0
- #define HAL_ADC_RESOLUTION 10
-
- /* ---------------- Delay in cycles */
-
- #define DELAY_CYCLES(x) Kernel::delayCycles(x)
- #define SYSTEM_YIELD() Kernel::yield()
-
- // Maple Compatibility
- typedef void (*systickCallback_t)(void);
- void systick_attach_callback(systickCallback_t cb);
- extern volatile uint32_t systick_uptime_millis;
-
- // Marlin uses strstr in constexpr context, this is not supported, workaround by defining constexpr versions of the required functions.
- #define strstr(a, b) strstr_constexpr((a), (b))
-
- constexpr inline std::size_t strlen_constexpr(const char* str) {
- // https://github.com/gcc-mirror/gcc/blob/5c7634a0e5f202935aa6c11b6ea953b8bf80a00a/libstdc%2B%2B-v3/include/bits/char_traits.h#L329
- if (str != nullptr) {
- std::size_t i = 0;
- while (str[i] != '\0') ++i;
- return i;
- }
- return 0;
- }
-
- constexpr inline int strncmp_constexpr(const char* lhs, const char* rhs, std::size_t count) {
- // https://github.com/gcc-mirror/gcc/blob/13b9cbfc32fe3ac4c81c4dd9c42d141c8fb95db4/libstdc%2B%2B-v3/include/bits/char_traits.h#L655
- if (lhs == nullptr || rhs == nullptr)
- return rhs != nullptr ? -1 : 1;
-
- for (std::size_t i = 0; i < count; ++i)
- if (lhs[i] != rhs[i])
- return lhs[i] < rhs[i] ? -1 : 1;
- else if (lhs[i] == '\0')
- return 0;
-
- return 0;
- }
-
- constexpr inline const char* strstr_constexpr(const char* str, const char* target) {
- // https://github.com/freebsd/freebsd/blob/master/sys/libkern/strstr.c
- if (char c = target != nullptr ? *target++ : '\0'; c != '\0' && str != nullptr) {
- std::size_t len = strlen_constexpr(target);
- do {
- char sc = {};
- do {
- if ((sc = *str++) == '\0') return nullptr;
- } while (sc != c);
- } while (strncmp_constexpr(str, target, len) != 0);
- --str;
- }
- return str;
- }
-
- constexpr inline char* strstr_constexpr(char* str, const char* target) {
- // https://github.com/freebsd/freebsd/blob/master/sys/libkern/strstr.c
- if (char c = target != nullptr ? *target++ : '\0'; c != '\0' && str != nullptr) {
- std::size_t len = strlen_constexpr(target);
- do {
- char sc = {};
- do {
- if ((sc = *str++) == '\0') return nullptr;
- } while (sc != c);
- } while (strncmp_constexpr(str, target, len) != 0);
- --str;
- }
- return str;
- }
-
- // ------------------------
- // Free Memory Accessor
- // ------------------------
-
- #pragma GCC diagnostic push
- #if GCC_VERSION <= 50000
- #pragma GCC diagnostic ignored "-Wunused-function"
- #endif
-
- int freeMemory();
-
- #pragma GCC diagnostic pop
-
- // ------------------------
- // MarlinHAL Class
- // ------------------------
-
- class MarlinHAL {
- public:
-
- // Earliest possible init, before setup()
- MarlinHAL() {}
-
- // Watchdog
- static void watchdog_init() IF_DISABLED(USE_WATCHDOG, {});
- static void watchdog_refresh() IF_DISABLED(USE_WATCHDOG, {});
-
- static void init() {} // Called early in setup()
- static void init_board() {} // Called less early in setup()
- static void reboot(); // Restart the firmware from 0x0
-
- // Interrupts
- static bool isr_state() { return true; }
- static void isr_on() {}
- static void isr_off() {}
-
- static void delay_ms(const int ms) { _delay_ms(ms); }
-
- // Tasks, called from idle()
- static void idletask();
-
- // Reset
- static constexpr uint8_t reset_reason = RST_POWER_ON;
- static uint8_t get_reset_source() { return reset_reason; }
- static void clear_reset_source() {}
-
- // Free SRAM
- static int freeMemory() { return ::freeMemory(); }
-
- //
- // ADC Methods
- //
-
- static uint8_t active_ch;
-
- // Called by Temperature::init once at startup
- static void adc_init();
-
- // Called by Temperature::init for each sensor at startup
- static void adc_enable(const uint8_t ch);
-
- // Begin ADC sampling on the given channel. Called from Temperature::isr!
- static void adc_start(const uint8_t ch);
-
- // Is the ADC ready for reading?
- static bool adc_ready();
-
- // The current value of the ADC register
- static uint16_t adc_value();
-
- /**
- * Set the PWM duty cycle for the pin to the given value.
- * No option to invert the duty cycle [default = false]
- * No option to change the scale of the provided value to enable finer PWM duty control [default = 255]
- */
- static void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) {
- analogWrite(pin, v);
- }
-
- };
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