diff options
Diffstat (limited to 'lib/lufa/Bootloaders/MassStorage/BootloaderMassStorage.c')
| -rw-r--r-- | lib/lufa/Bootloaders/MassStorage/BootloaderMassStorage.c | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/lib/lufa/Bootloaders/MassStorage/BootloaderMassStorage.c b/lib/lufa/Bootloaders/MassStorage/BootloaderMassStorage.c deleted file mode 100644 index 6c9697b660..0000000000 --- a/lib/lufa/Bootloaders/MassStorage/BootloaderMassStorage.c +++ /dev/null @@ -1,263 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaims all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Main source file for the Mass Storage class bootloader. This file contains the complete bootloader logic. - */ - -#define INCLUDE_FROM_BOOTLOADER_MASSSTORAGE_C -#include "BootloaderMassStorage.h" - -/** LUFA Mass Storage Class driver interface configuration and state information. This structure is - * passed to all Mass Storage Class driver functions, so that multiple instances of the same class - * within a device can be differentiated from one another. - */ -USB_ClassInfo_MS_Device_t Disk_MS_Interface = - { - .Config = - { - .InterfaceNumber = INTERFACE_ID_MassStorage, - .DataINEndpoint = - { - .Address = MASS_STORAGE_IN_EPADDR, - .Size = MASS_STORAGE_IO_EPSIZE, - .Banks = 1, - }, - .DataOUTEndpoint = - { - .Address = MASS_STORAGE_OUT_EPADDR, - .Size = MASS_STORAGE_IO_EPSIZE, - .Banks = 1, - }, - .TotalLUNs = 1, - }, - }; - -/** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run - * via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application - * started via a forced watchdog reset. - */ -bool RunBootloader = true; - -/** Magic lock for forced application start. If the HWBE fuse is programmed and BOOTRST is unprogrammed, the bootloader - * will start if the /HWB line of the AVR is held low and the system is reset. However, if the /HWB line is still held - * low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value - * \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start. - */ -uint16_t MagicBootKey ATTR_NO_INIT; - -/** Indicates if the bootloader is allowed to exit immediately if \ref RunBootloader is \c false. During shutdown all - * pending commands must be processed before jumping to the user-application, thus this tracks the main program loop - * iterations since a SCSI command from the host was received. - */ -static uint8_t TicksSinceLastCommand = 0; - - -/** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application - * start key has been loaded into \ref MagicBootKey. If the bootloader started via the watchdog and the key is valid, - * this will force the user application to start via a software jump. - */ -void Application_Jump_Check(void) -{ - bool JumpToApplication = false; - - #if (BOARD == BOARD_LEONARDO) - /* Enable pull-up on the IO13 pin so we can use it to select the mode */ - PORTC |= (1 << 7); - Delay_MS(10); - - /* If IO13 is not jumpered to ground, start the user application instead */ - JumpToApplication = ((PINC & (1 << 7)) != 0); - - /* Disable pull-up after the check has completed */ - PORTC &= ~(1 << 7); - #elif ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1)) - /* Disable JTAG debugging */ - JTAG_DISABLE(); - - /* Enable pull-up on the JTAG TCK pin so we can use it to select the mode */ - PORTF |= (1 << 4); - Delay_MS(10); - - /* If the TCK pin is not jumpered to ground, start the user application instead */ - JumpToApplication = ((PINF & (1 << 4)) != 0); - - /* Re-enable JTAG debugging */ - JTAG_ENABLE(); - #else - /* Check if the device's BOOTRST fuse is set */ - if (boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS) & FUSE_BOOTRST) - { - /* If the reset source was not an external reset or the key is correct, clear it and jump to the application */ - if (!(MCUSR & (1 << EXTRF)) || (MagicBootKey == MAGIC_BOOT_KEY)) - JumpToApplication = true; - - /* Clear reset source */ - MCUSR &= ~(1 << EXTRF); - } - else - { - /* If the reset source was the bootloader and the key is correct, clear it and jump to the application; - * this can happen in the HWBE fuse is set, and the HBE pin is low during the watchdog reset */ - if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY)) - JumpToApplication = true; - - /* Clear reset source */ - MCUSR &= ~(1 << WDRF); - } - #endif - - /* Don't run the user application if the reset vector is blank (no app loaded) */ - bool ApplicationValid = (pgm_read_word_near(0) != 0xFFFF); - - /* If a request has been made to jump to the user application, honor it */ - if (JumpToApplication && ApplicationValid) - { - /* Turn off the watchdog */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Clear the boot key and jump to the user application */ - MagicBootKey = 0; - - // cppcheck-suppress constStatement - ((void (*)(void))0x0000)(); - } -} - -/** Main program entry point. This routine configures the hardware required by the application, then - * enters a loop to run the application tasks in sequence. - */ -int main(void) -{ - SetupHardware(); - - LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); - GlobalInterruptEnable(); - - while (RunBootloader || TicksSinceLastCommand++ < 0xFF) - { - MS_Device_USBTask(&Disk_MS_Interface); - USB_USBTask(); - } - - /* Disconnect from the host - USB interface will be reset later along with the AVR */ - USB_Detach(); - - /* Unlock the forced application start mode of the bootloader if it is restarted */ - MagicBootKey = MAGIC_BOOT_KEY; - - /* Enable the watchdog and force a timeout to reset the AVR */ - wdt_enable(WDTO_250MS); - - for (;;); -} - -/** Configures the board hardware and chip peripherals for the demo's functionality. */ -static void SetupHardware(void) -{ - /* Disable watchdog if enabled by bootloader/fuses */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Disable clock division */ - clock_prescale_set(clock_div_1); - - /* Relocate the interrupt vector table to the bootloader section */ - MCUCR = (1 << IVCE); - MCUCR = (1 << IVSEL); - - /* Hardware Initialization */ - LEDs_Init(); - USB_Init(); - - /* Bootloader active LED toggle timer initialization */ - TIMSK1 = (1 << TOIE1); - TCCR1B = ((1 << CS11) | (1 << CS10)); -} - -/** ISR to periodically toggle the LEDs on the board to indicate that the bootloader is active. */ -ISR(TIMER1_OVF_vect, ISR_BLOCK) -{ - LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2); -} - -/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */ -void EVENT_USB_Device_Connect(void) -{ - /* Indicate USB enumerating */ - LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); -} - -/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via - * the status LEDs and stops the Mass Storage management task. - */ -void EVENT_USB_Device_Disconnect(void) -{ - /* Indicate USB not ready */ - LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); -} - -/** Event handler for the library USB Configuration Changed event. */ -void EVENT_USB_Device_ConfigurationChanged(void) -{ - bool ConfigSuccess = true; - - /* Setup Mass Storage Data Endpoints */ - ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface); - - /* Indicate endpoint configuration success or failure */ - LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); -} - -/** Event handler for the library USB Control Request reception event. */ -void EVENT_USB_Device_ControlRequest(void) -{ - MS_Device_ProcessControlRequest(&Disk_MS_Interface); -} - -/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced - */ -bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - bool CommandSuccess; - - LEDs_SetAllLEDs(LEDMASK_USB_BUSY); - CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo); - LEDs_SetAllLEDs(LEDMASK_USB_READY); - - /* Signal that a command was processed, must not exit bootloader yet */ - TicksSinceLastCommand = 0; - - return CommandSuccess; -} |