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Diffstat (limited to 'Marlin/src/HAL/STM32/HAL.cpp')
| -rw-r--r-- | Marlin/src/HAL/STM32/HAL.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/Marlin/src/HAL/STM32/HAL.cpp b/Marlin/src/HAL/STM32/HAL.cpp new file mode 100644 index 0000000..06744f1 --- /dev/null +++ b/Marlin/src/HAL/STM32/HAL.cpp @@ -0,0 +1,163 @@ +/** + * Marlin 3D Printer Firmware + * + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com + * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com + * Copyright (c) 2017 Victor Perez + * + * 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/>. + * + */ +#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC) + +#include "HAL.h" +#include "usb_serial.h" + +#include "../../inc/MarlinConfig.h" +#include "../shared/Delay.h" + +#ifdef USBCON + DefaultSerial MSerial(false, SerialUSB); +#endif + +#if ENABLED(SRAM_EEPROM_EMULATION) + #if STM32F7xx + #include <stm32f7xx_ll_pwr.h> + #elif STM32F4xx + #include <stm32f4xx_ll_pwr.h> + #else + #error "SRAM_EEPROM_EMULATION is currently only supported for STM32F4xx and STM32F7xx" + #endif +#endif + +#if HAS_SD_HOST_DRIVE + #include "msc_sd.h" + #include "usbd_cdc_if.h" +#endif + +// ------------------------ +// Public Variables +// ------------------------ + +uint16_t HAL_adc_result; + +// ------------------------ +// Public functions +// ------------------------ + +// Needed for DELAY_NS() / DELAY_US() on CORTEX-M7 +#if (defined(__arm__) || defined(__thumb__)) && __CORTEX_M == 7 + // HAL pre-initialization task + // Force the preinit function to run between the premain() and main() function + // of the STM32 arduino core + __attribute__((constructor (102))) + void HAL_preinit() { + enableCycleCounter(); + } +#endif + +// HAL initialization task +void HAL_init() { + FastIO_init(); + + #if ENABLED(SDSUPPORT) && DISABLED(SDIO_SUPPORT) && (defined(SDSS) && SDSS != -1) + OUT_WRITE(SDSS, HIGH); // Try to set SDSS inactive before any other SPI users start up + #endif + + #if PIN_EXISTS(LED) + OUT_WRITE(LED_PIN, LOW); + #endif + + #if ENABLED(SRAM_EEPROM_EMULATION) + __HAL_RCC_PWR_CLK_ENABLE(); + HAL_PWR_EnableBkUpAccess(); // Enable access to backup SRAM + __HAL_RCC_BKPSRAM_CLK_ENABLE(); + LL_PWR_EnableBkUpRegulator(); // Enable backup regulator + while (!LL_PWR_IsActiveFlag_BRR()); // Wait until backup regulator is initialized + #endif + + SetTimerInterruptPriorities(); + + #if ENABLED(EMERGENCY_PARSER) && USBD_USE_CDC + USB_Hook_init(); + #endif + + #if HAS_SD_HOST_DRIVE + MSC_SD_init(); // Enable USB SD card access + #endif +} + +// HAL idle task +void HAL_idletask() { + #if HAS_SHARED_MEDIA + // Stm32duino currently doesn't have a "loop/idle" method + CDC_resume_receive(); + CDC_continue_transmit(); + #endif +} + +void HAL_clear_reset_source() { __HAL_RCC_CLEAR_RESET_FLAGS(); } + +uint8_t HAL_get_reset_source() { + return + #ifdef RCC_FLAG_IWDGRST // Some sources may not exist... + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST) ? RST_WATCHDOG : + #endif + #ifdef RCC_FLAG_IWDG1RST + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG1RST) ? RST_WATCHDOG : + #endif + #ifdef RCC_FLAG_IWDG2RST + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG2RST) ? RST_WATCHDOG : + #endif + #ifdef RCC_FLAG_SFTRST + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST) ? RST_SOFTWARE : + #endif + #ifdef RCC_FLAG_PINRST + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) ? RST_EXTERNAL : + #endif + #ifdef RCC_FLAG_PORRST + RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) ? RST_POWER_ON : + #endif + 0 + ; +} + +void _delay_ms(const int delay_ms) { delay(delay_ms); } + +extern "C" { + extern unsigned int _ebss; // end of bss section +} + +// ------------------------ +// ADC +// ------------------------ + +// TODO: Make sure this doesn't cause any delay +void HAL_adc_start_conversion(const uint8_t adc_pin) { HAL_adc_result = analogRead(adc_pin); } +uint16_t HAL_adc_get_result() { return HAL_adc_result; } + +// Reset the system (to initiate a firmware flash) +void flashFirmware(const int16_t) { NVIC_SystemReset(); } + +// Maple Compatibility +volatile uint32_t systick_uptime_millis = 0; +systickCallback_t systick_user_callback; +void systick_attach_callback(systickCallback_t cb) { systick_user_callback = cb; } +void HAL_SYSTICK_Callback() { + systick_uptime_millis++; + if (systick_user_callback) systick_user_callback(); +} + +#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC |