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Add support for discovering beginning of free space on flash chip

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This commit is contained in:
Nicholas Sherlock 2015-02-10 13:44:18 +13:00
parent f7d227a208
commit 5651e65a0b
6 changed files with 142 additions and 29 deletions
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16
src/main/io/serial_msp.c
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@ -533,13 +533,14 @@ reset:
static void serializeDataflashSummaryReply(void)
{
headSerialReply(3 * 4);
#ifdef FLASHFS
const flashGeometry_t *geometry = flashfsGetGeometry();
headSerialReply(2 * 4);
serialize32(geometry->sectors);
serialize32(geometry->totalSize);
serialize32(flashfsGetOffset()); // Effectively the current number of bytes stored on the volume
#else
headSerialReply(2 * 4);
serialize32(0);
serialize32(0);
serialize32(0);
#endif
@ -548,22 +549,19 @@ static void serializeDataflashSummaryReply(void)
#ifdef FLASHFS
static void serializeDataflashReadReply(uint32_t address, uint8_t size)
{
enum { DATAFLASH_READ_REPLY_CHUNK_SIZE = 128 };
uint8_t buffer[DATAFLASH_READ_REPLY_CHUNK_SIZE];
uint8_t buffer[128];
int bytesRead;
if (size > DATAFLASH_READ_REPLY_CHUNK_SIZE) {
size = DATAFLASH_READ_REPLY_CHUNK_SIZE;
if (size > sizeof(buffer)) {
size = sizeof(buffer);
}
headSerialReply(4 + size);
serialize32(address);
flashfsSeekAbs(address);
// bytesRead will be lower than that requested if we reach end of volume
bytesRead = flashfsRead(buffer, size);
bytesRead = flashfsReadAbs(address, buffer, size);
for (int i = 0; i < bytesRead; i++) {
serialize8(buffer[i]);