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nvs, spi_flash: handle case when source data is in DROM

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This commit is contained in:
Ivan Grokhotkov
2016-11-18 19:17:13 +08:00
parent 541b142654
commit 0b265dc2a7
3 changed files with 32 additions and 1 deletions
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6
components/spi_flash/flash_ops.c
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@@ -135,6 +135,12 @@ esp_err_t IRAM_ATTR spi_flash_write(size_t dest_addr, const void *src, size_t si
if (size % 4 != 0) {
return ESP_ERR_INVALID_SIZE;
}
if ((uint32_t) src < 0x3ff00000) {
// if source address is in DROM, we won't be able to read it
// from within SPIWrite
// TODO: consider buffering source data using heap and writing it anyway?
return ESP_ERR_INVALID_ARG;
}
// Out of bound writes are checked in ROM code, but we can give better
// error code here
if (dest_addr + size > g_rom_flashchip.chip_size) {