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- /**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
- #ifdef __STM32F1__
-
- #include "../../inc/MarlinConfigPre.h"
-
- #if HAS_SD_HOST_DRIVE
-
- #include "msc_sd.h"
- #include "SPI.h"
- #include "usb_reg_map.h"
-
- #define PRODUCT_ID 0x29
-
- USBMassStorage MarlinMSC;
- Serial1Class<USBCompositeSerial> MarlinCompositeSerial(true);
-
- #include "../../inc/MarlinConfig.h"
-
- #if SD_CONNECTION_IS(ONBOARD)
-
- #include "onboard_sd.h"
-
- static bool MSC_Write(const uint8_t *writebuff, uint32_t startSector, uint16_t numSectors) {
- return (disk_write(0, writebuff, startSector, numSectors) == RES_OK);
- }
- static bool MSC_Read(uint8_t *readbuff, uint32_t startSector, uint16_t numSectors) {
- return (disk_read(0, readbuff, startSector, numSectors) == RES_OK);
- }
-
- #endif
-
- #if ENABLED(EMERGENCY_PARSER)
-
- // The original callback is not called (no way to retrieve address).
- // That callback detects a special STM32 reset sequence: this functionality is not essential
- // as M997 achieves the same.
- void my_rx_callback(unsigned int, void*) {
- // max length of 16 is enough to contain all emergency commands
- uint8 buf[16];
-
- //rx is usbSerialPart.endpoints[2]
- uint16 len = usb_get_ep_rx_count(usbSerialPart.endpoints[2].address);
- uint32 total = composite_cdcacm_data_available();
-
- if (len == 0 || total == 0 || !WITHIN(total, len, COUNT(buf)))
- return;
-
- // cannot get character by character due to bug in composite_cdcacm_peek_ex
- len = composite_cdcacm_peek(buf, total);
-
- for (uint32 i = 0; i < len; i++)
- emergency_parser.update(MarlinCompositeSerial.emergency_state, buf[i+total-len]);
- }
-
- #endif
-
- void MSC_SD_init() {
- USBComposite.setProductId(PRODUCT_ID);
- // Just set MarlinCompositeSerial enabled to true
- // because when MarlinCompositeSerial.begin() is used in setup()
- // it clears all USBComposite devices.
- MarlinCompositeSerial.begin();
- USBComposite.end();
- USBComposite.clear();
- // Set api and register mass storage
- #if SD_CONNECTION_IS(ONBOARD)
- uint32_t cardSize;
- if (disk_initialize(0) == RES_OK) {
- if (disk_ioctl(0, GET_SECTOR_COUNT, (void *)(&cardSize)) == RES_OK) {
- MarlinMSC.setDriveData(0, cardSize, MSC_Read, MSC_Write);
- MarlinMSC.registerComponent();
- }
- }
- #endif
- // Register composite Serial
- MarlinCompositeSerial.registerComponent();
- USBComposite.begin();
- #if ENABLED(EMERGENCY_PARSER)
- composite_cdcacm_set_hooks(USBHID_CDCACM_HOOK_RX, my_rx_callback);
- #endif
- }
-
- #endif // HAS_SD_HOST_DRIVE
- #endif // __STM32F1__
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