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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
- *
- */
- #ifdef TARGET_LPC1768
-
- #include <usb/usb.h>
- #include <usb/usbcfg.h>
- #include <usb/usbhw.h>
- #include <usb/usbcore.h>
- #include <usb/cdc.h>
- #include <usb/cdcuser.h>
- #include <usb/mscuser.h>
- #include <CDCSerial.h>
- #include <usb/mscuser.h>
-
- extern "C" {
- #include <debug_frmwrk.h>
- }
-
- #include "../../sd/cardreader.h"
- #include "../../inc/MarlinConfig.h"
- #include "HAL.h"
- #include "HAL_timers.h"
-
- extern uint32_t MSC_SD_Init(uint8_t pdrv);
- extern "C" int isLPC1769();
- extern "C" void disk_timerproc(void);
-
- void SysTick_Callback() {
- disk_timerproc();
- }
-
- void HAL_init(void) {
-
- // Init LEDs
- #if PIN_EXISTS(LED)
- SET_DIR_OUTPUT(LED_PIN);
- WRITE_PIN_CLR(LED_PIN);
- #if PIN_EXISTS(LED2)
- SET_DIR_OUTPUT(LED2_PIN);
- WRITE_PIN_CLR(LED2_PIN);
- #if PIN_EXISTS(LED3)
- SET_DIR_OUTPUT(LED3_PIN);
- WRITE_PIN_CLR(LED3_PIN);
- #if PIN_EXISTS(LED4)
- SET_DIR_OUTPUT(LED4_PIN);
- WRITE_PIN_CLR(LED4_PIN);
- #endif
- #endif
- #endif
-
- // Flash status LED 3 times to indicate Marlin has started booting
- for (uint8_t i = 0; i < 6; ++i) {
- TOGGLE(LED_PIN);
- delay(100);
- }
- #endif
-
- // Init Servo Pins
- #if PIN_EXISTS(SERVO0)
- OUT_WRITE(SERVO0_PIN, LOW);
- #endif
- #if PIN_EXISTS(SERVO1)
- OUT_WRITE(SERVO1_PIN, LOW);
- #endif
- #if PIN_EXISTS(SERVO2)
- OUT_WRITE(SERVO2_PIN, LOW);
- #endif
- #if PIN_EXISTS(SERVO3)
- OUT_WRITE(SERVO3_PIN, LOW);
- #endif
-
- //debug_frmwrk_init();
- //_DBG("\n\nDebug running\n");
- // Initialise the SD card chip select pins as soon as possible
- #if PIN_EXISTS(SS)
- OUT_WRITE(SS_PIN, HIGH);
- #endif
-
- #if PIN_EXISTS(ONBOARD_SD_CS) && ONBOARD_SD_CS_PIN != SS_PIN
- OUT_WRITE(ONBOARD_SD_CS_PIN, HIGH);
- #endif
-
- USB_Init(); // USB Initialization
- USB_Connect(FALSE); // USB clear connection
- delay(1000); // Give OS time to notice
- USB_Connect(TRUE);
-
- #if !BOTH(SHARED_SD_CARD, INIT_SDCARD_ON_BOOT) && DISABLED(NO_SD_HOST_DRIVE)
- MSC_SD_Init(0); // Enable USB SD card access
- #endif
-
- const millis_t usb_timeout = millis() + 2000;
- while (!USB_Configuration && PENDING(millis(), usb_timeout)) {
- delay(50);
- HAL_idletask();
- #if PIN_EXISTS(LED)
- TOGGLE(LED_PIN); // Flash quickly during USB initialization
- #endif
- }
-
- #if NUM_SERIAL > 0
- MYSERIAL0.begin(BAUDRATE);
- #if NUM_SERIAL > 1
- MYSERIAL1.begin(BAUDRATE);
- #endif
- SERIAL_PRINTF("\n\necho:%s (%dMhz) Initialized\n", isLPC1769() ? "LPC1769" : "LPC1768", SystemCoreClock / 1000000);
- SERIAL_FLUSHTX();
- #endif
-
- HAL_timer_init();
- }
-
- // HAL idle task
- void HAL_idletask(void) {
- #if ENABLED(SHARED_SD_CARD)
- // If Marlin is using the SD card we need to lock it to prevent access from
- // a PC via USB.
- // Other HALs use IS_SD_PRINTING() and IS_SD_FILE_OPEN() to check for access but
- // this will not reliably detect delete operations. To be safe we will lock
- // the disk if Marlin has it mounted. Unfortuately there is currently no way
- // to unmount the disk from the LCD menu.
- // if (IS_SD_PRINTING() || IS_SD_FILE_OPEN())
- if (card.isDetected())
- MSC_Aquire_Lock();
- else
- MSC_Release_Lock();
- #endif
- // Perform USB stack housekeeping
- MSC_RunDeferredCommands();
- }
-
- #endif // TARGET_LPC1768
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