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STM32F1: Fix SD card persistent store API (#11090)

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This commit is contained in:
Alexander Amelkin 2018-06-26 21:41:23 +03:00 committed by Scott Lahteine
parent 8d8f257384
commit ffdbc1f42c
1 changed files with 13 additions and 10 deletions
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15
Marlin/src/HAL/HAL_STM32F1/persistent_store_flash.cpp
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@ -42,10 +42,12 @@
namespace HAL {
namespace PersistentStore {
namespace {
// Store settings in the last two pages
// Flash pages must be erased before writing, so keep track.
bool firstWrite = false;
uint32_t pageBase = EEPROM_START_ADDRESS;
}
bool access_start() {
firstWrite = true;
@ -64,9 +66,9 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
if (firstWrite) {
FLASH_Unlock();
status = FLASH_ErasePage(EEPROM_PAGE0_BASE);
if (status != FLASH_COMPLETE) return false;
if (status != FLASH_COMPLETE) return true;
status = FLASH_ErasePage(EEPROM_PAGE1_BASE);
if (status != FLASH_COMPLETE) return false;
if (status != FLASH_COMPLETE) return true;
firstWrite = false;
}
@ -76,7 +78,7 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
uint16_t* wordBuffer = (uint16_t *)value;
while (wordsToWrite) {
status = FLASH_ProgramHalfWord(pageBase + pos + (i * 2), wordBuffer[i]);
if (status != FLASH_COMPLETE) return false;
if (status != FLASH_COMPLETE) return true;
wordsToWrite--;
i++;
}
@ -85,15 +87,15 @@ bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
if (size & 1) {
uint16_t temp = value[size - 1];
status = FLASH_ProgramHalfWord(pageBase + pos + i, temp);
if (status != FLASH_COMPLETE) return false;
if (status != FLASH_COMPLETE) return true;
}
crc16(crc, value, size);
pos += ((size + 1) & ~1);
return true;
return false;
}
void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
for (uint16_t i = 0; i < size; i++) {
byte* accessPoint = (byte*)(pageBase + pos + i);
uint8_t c = *accessPoint;
@ -101,6 +103,7 @@ void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const boo
crc16(crc, &c, 1);
}
pos += ((size + 1) & ~1);
return false;
}
} // PersistentStore