123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231 |
- /* Copyright (c) 2011,2012 Simon Schubert <[email protected]>.
- * Modifications by Jacob Alexander 2014-2016 <[email protected]>
- *
- * 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/>.
- */
-
- // ----- Includes -----
-
- // Local Includes
- #include "mchck.h"
- #include "dfu.desc.h"
-
- #include "debug.h"
-
-
-
- // ----- Variables -----
-
- /**
- * Unfortunately we can't DMA directly to FlexRAM, so we'll have to stage here.
- */
- static char staging[ USB_DFU_TRANSFER_SIZE ];
-
-
-
- // ----- Functions -----
-
- int sector_print( void* buf, size_t sector, size_t chunks )
- {
- uint8_t* start = (uint8_t*)buf + sector * USB_DFU_TRANSFER_SIZE;
- uint8_t* end = (uint8_t*)buf + (sector + 1) * USB_DFU_TRANSFER_SIZE;
- uint8_t* pos = start;
-
- // Verify if sector erased
- FTFL.fccob.read_1s_section.fcmd = FTFL_FCMD_READ_1s_SECTION;
- FTFL.fccob.read_1s_section.addr = (uintptr_t)start;
- FTFL.fccob.read_1s_section.margin = FTFL_MARGIN_NORMAL;
- FTFL.fccob.read_1s_section.num_words = 250; // 2000 kB / 64 bits
- int retval = ftfl_submit_cmd();
-
- #ifdef FLASH_DEBUG
- print( NL );
- print("Block ");
- printHex( sector );
- print(" ");
- printHex( (size_t)start );
- print(" -> ");
- printHex( (size_t)end );
- print(" Erased: ");
- printHex( retval );
- print( NL );
- #endif
-
- // Display sector
- for ( size_t line = 0; pos < end - 24; line++ )
- {
- // Each Line
- printHex_op( (size_t)pos, 4 );
- print(": ");
-
- // Each 2 byte chunk
- for ( size_t chunk = 0; chunk < chunks; chunk++ )
- {
- // Print out the two bytes (second one first)
- printHex_op( *(pos + 1), 2 );
- printHex_op( *pos, 2 );
- print(" ");
- pos += 2;
- }
-
- print( NL );
- }
-
- return retval;
- }
-
- static enum dfu_status setup_read( size_t off, size_t *len, void **buf )
- {
- // Calculate starting address from offset
- *buf = (void*)&_app_rom + off;
-
- // Calculate length of transfer
- *len = *buf + USB_DFU_TRANSFER_SIZE > (void*)(&_app_rom_end)
- ? (void*)(&_app_rom_end) - *buf + 1
- : USB_DFU_TRANSFER_SIZE;
-
- return (DFU_STATUS_OK);
- }
-
- static enum dfu_status setup_write( size_t off, size_t len, void **buf )
- {
- static int last = 0;
-
- #ifdef FLASH_DEBUG
- // Debug
- print("Setup Write: offset(");
- printHex( off );
- print(") len(");
- printHex( len );
- print(") last(");
- printHex( last );
- printNL(")");
- #endif
-
- if ( len > sizeof(staging) )
- return (DFU_STATUS_errADDRESS);
-
- // We only allow the last write to be less than one sector size.
- if ( off == 0 )
- last = 0;
- if ( last && len != 0 )
- return (DFU_STATUS_errADDRESS);
- if ( len != USB_DFU_TRANSFER_SIZE )
- {
- last = 1;
- memset( staging, 0xff, sizeof(staging) );
- }
-
- *buf = staging;
- return (DFU_STATUS_OK);
- }
-
- static enum dfu_status finish_write( void *buf, size_t off, size_t len )
- {
- void *target;
-
- // If nothing left to flash, this is still ok
- if ( len == 0 )
- return (DFU_STATUS_OK);
-
- // If the binary is larger than the internal flash, error
- if ( off + (uintptr_t)&_app_rom + len > (uintptr_t)&_app_rom_end )
- return (DFU_STATUS_errADDRESS);
-
- target = flash_get_staging_area( off + (uintptr_t)&_app_rom, USB_DFU_TRANSFER_SIZE );
- if ( !target )
- return (DFU_STATUS_errADDRESS);
- memcpy( target, buf, len );
-
- // Depending on the error return a different status
- switch ( flash_program_sector( off + (uintptr_t)&_app_rom, USB_DFU_TRANSFER_SIZE ) )
- {
- /*
- case FTFL_FSTAT_RDCOLERR: // Flash Read Collision Error
- case FTFL_FSTAT_ACCERR: // Flash Access Error
- case FTFL_FSTAT_FPVIOL: // Flash Protection Violation Error
- return (DFU_STATUS_errADDRESS);
- case FTFL_FSTAT_MGSTAT0: // Memory Controller Command Completion Error
- return (DFU_STATUS_errADDRESS);
- */
-
- case 0:
- default: // No error
- return (DFU_STATUS_OK);
- }
- }
-
-
- static struct dfu_ctx dfu_ctx;
-
- void init_usb_bootloader( int config )
- {
- dfu_init( setup_read, setup_write, finish_write, &dfu_ctx );
- }
-
- void main()
- {
- #if defined(_mk20dx128vlf5_) // Kiibohd-dfu / Infinity
- // XXX McHCK uses B16 instead of A19
-
- // Enabling LED to indicate we are in the bootloader
- GPIOA_PDDR |= (1<<19);
- // Setup pin - A19 - See Lib/pin_map.mchck for more details on pins
- PORTA_PCR19 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
- GPIOA_PSOR |= (1<<19);
-
- #elif defined(_mk20dx256vlh7_) // Kiibohd-dfu
- // Enabling LED to indicate we are in the bootloader
- GPIOA_PDDR |= (1<<5);
- // Setup pin - A5 - See Lib/pin_map.mchck for more details on pins
- PORTA_PCR5 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
- GPIOA_PSOR |= (1<<5);
-
- // TODO Add CMake configuration for disabling
- // Set LCD backlight on ICED to Red
- GPIOC_PDDR |= (1<<1);
- PORTC_PCR1 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
- GPIOC_PCOR |= (1<<1);
- #else
- #error "Incompatible chip for bootloader"
- #endif
-
- uart_serial_setup();
- printNL( NL "Bootloader DFU-Mode" );
-
- // Bootloader Enter Reasons
- print(" RCM_SRS0 - ");
- printHex( RCM_SRS0 & 0x60 );
- print( NL " RCM_SRS1 - ");
- printHex( RCM_SRS1 & 0x02 );
- print( NL " _app_rom - ");
- printHex( (uint32_t)_app_rom );
- print( NL " Soft Rst - " );
- printHex( memcmp( (uint8_t*)&VBAT, sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic) ) == 0 );
- print( NL );
-
- #ifdef FLASH_DEBUG
- for ( uint8_t sector = 0; sector < 3; sector++ )
- sector_print( &_app_rom, sector, 16 );
- print( NL );
- #endif
-
- flash_prepare_flashing();
- usb_init( &dfu_device );
- for (;;)
- {
- usb_poll();
- }
- }
|