mirror of
https://github.com/iNavFlight/inav.git
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106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "platform.h"
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#include "drivers/system.h"
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#include "config/config_streamer.h"
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#if defined(STM32F4) && !defined(CONFIG_IN_RAM) && !defined(CONFIG_IN_EXTERNAL_FLASH)
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/*
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Sector 0 0x08000000 - 0x08003FFF 16 Kbytes
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Sector 1 0x08004000 - 0x08007FFF 16 Kbytes
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Sector 2 0x08008000 - 0x0800BFFF 16 Kbytes
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Sector 3 0x0800C000 - 0x0800FFFF 16 Kbytes
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Sector 4 0x08010000 - 0x0801FFFF 64 Kbytes
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Sector 5 0x08020000 - 0x0803FFFF 128 Kbytes
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Sector 6 0x08040000 - 0x0805FFFF 128 Kbytes
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Sector 7 0x08060000 - 0x0807FFFF 128 Kbytes
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Sector 8 0x08080000 - 0x0809FFFF 128 Kbytes
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Sector 9 0x080A0000 - 0x080BFFFF 128 Kbytes
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Sector 10 0x080C0000 - 0x080DFFFF 128 Kbytes
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Sector 11 0x080E0000 - 0x080FFFFF 128 Kbytes
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*/
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#define FLASH_PAGE_SIZE ((uint32_t)0x4000)
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static uint32_t getFLASHSectorForEEPROM(uint32_t address)
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{
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if (address <= 0x08003FFF)
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return FLASH_Sector_0;
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if (address <= 0x08007FFF)
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return FLASH_Sector_1;
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if (address <= 0x0800BFFF)
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return FLASH_Sector_2;
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if (address <= 0x0800FFFF)
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return FLASH_Sector_3;
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if (address <= 0x0801FFFF)
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return FLASH_Sector_4;
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if (address <= 0x0803FFFF)
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return FLASH_Sector_5;
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if (address <= 0x0805FFFF)
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return FLASH_Sector_6;
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if (address <= 0x0807FFFF)
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return FLASH_Sector_7;
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if (address <= 0x0809FFFF)
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return FLASH_Sector_8;
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if (address <= 0x080DFFFF)
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return FLASH_Sector_9;
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if (address <= 0x080BFFFF)
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return FLASH_Sector_10;
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if (address <= 0x080FFFFF)
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return FLASH_Sector_11;
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// Not good
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while (1) {
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failureMode(FAILURE_FLASH_WRITE_FAILED);
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}
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}
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void config_streamer_impl_unlock(void)
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{
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FLASH_Unlock();
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FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
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}
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void config_streamer_impl_lock(void)
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{
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FLASH_Lock();
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}
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int config_streamer_impl_write_word(config_streamer_t *c, config_streamer_buffer_align_type_t *buffer)
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{
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if (c->err != 0) {
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return c->err;
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}
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if (c->address % FLASH_PAGE_SIZE == 0) {
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const FLASH_Status status = FLASH_EraseSector(getFLASHSectorForEEPROM(c->address), VoltageRange_3);
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if (status != FLASH_COMPLETE) {
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return -1;
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}
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}
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const FLASH_Status status = FLASH_ProgramWord(c->address, *buffer);
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if (status != FLASH_COMPLETE) {
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return -2;
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}
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c->address += CONFIG_STREAMER_BUFFER_SIZE;
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return 0;
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}
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#endif
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