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f60defc3d3
* flash: mapping definition by sketch at runtime depending on flash chip size and user configuration
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/*
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spiffs_hal.cpp - SPI read/write/erase functions for SPIFFS.
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Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
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This file is part of the esp8266 core for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <Arduino.h>
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#include <stdlib.h>
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#include <algorithm>
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#include "debug.h"
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#include "flash_hal.h"
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extern "C" {
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#include "c_types.h"
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#include "spi_flash.h"
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}
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int32_t flash_hal_read(uint32_t addr, uint32_t size, uint8_t *dst) {
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optimistic_yield(10000);
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// We use flashRead overload that handles proper alignment
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if (ESP.flashRead(addr, dst, size)) {
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return FLASH_HAL_OK;
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} else {
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return FLASH_HAL_READ_ERROR;
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}
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}
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int32_t flash_hal_write(uint32_t addr, uint32_t size, const uint8_t *src) {
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optimistic_yield(10000);
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// We use flashWrite overload that handles proper alignment
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if (ESP.flashWrite(addr, src, size)) {
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return FLASH_HAL_OK;
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} else {
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return FLASH_HAL_WRITE_ERROR;
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}
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}
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int32_t flash_hal_erase(uint32_t addr, uint32_t size) {
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if ((size & (SPI_FLASH_SEC_SIZE - 1)) != 0 ||
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(addr & (SPI_FLASH_SEC_SIZE - 1)) != 0) {
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DEBUGV("_spif_erase called with addr=%x, size=%d\r\n", addr, size);
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abort();
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}
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const uint32_t sector = addr / SPI_FLASH_SEC_SIZE;
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const uint32_t sectorCount = size / SPI_FLASH_SEC_SIZE;
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for (uint32_t i = 0; i < sectorCount; ++i) {
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optimistic_yield(10000);
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if (!ESP.flashEraseSector(sector + i)) {
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DEBUGV("_spif_erase addr=%x size=%d i=%d\r\n", addr, size, i);
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return FLASH_HAL_ERASE_ERROR;
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}
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}
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return FLASH_HAL_OK;
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}
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#if FLASH_MAP_SUPPORT
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// default weak configuration:
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FLASH_MAP_SETUP_CONFIG_ATTR(__attribute__((weak)), FLASH_MAP_OTA_FS)
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// can be overridden by user with:
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//FLASH_MAP_SETUP_CONFIG(FLASH_MAP_some_configuration)
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#endif
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