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Comment updates, allow CLI flash read to read more in one operation

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This commit is contained in:
Nicholas Sherlock 2015-01-28 20:48:06 +13:00
parent 3eb28f16ea
commit 2e14faeef6
3 changed files with 21 additions and 16 deletions
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11
src/main/io/flashfs.c
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@ -114,15 +114,11 @@ static uint32_t flashfsTransmitBufferUsed()
static uint32_t flashfsTransmitBufferRemaining()
{
/*
* We subtract one from the actual transmit buffer remaining space to allow us to distinguish
* between completely full and completely empty states, that would otherwise both have head = tail
*/
return FLASHFS_WRITE_BUFFER_USABLE - flashfsTransmitBufferUsed();
}
/**
* Waits for the flash device to be ready to accept writes, then write the given buffers to flash.
* Waits for the flash device to be ready to accept writes, then write the given buffers to flash sequentially.
*
* Advances the address of the beginning of the supplied buffers and reduces the size of the buffers according to how
* many bytes get written.
@ -150,7 +146,10 @@ static void flashfsWriteBuffers(uint8_t const **buffers, uint32_t *bufferSizes,
uint32_t bytesTotalThisIteration;
uint32_t bytesRemainThisIteration;
// If we would cross a page boundary, only write up to the boundary in this iteration:
/*
* Each page needs to be saved in a separate program operation, so
* if we would cross a page boundary, only write up to the boundary in this iteration:
*/
if (tailIndexInPage + bytesTotalRemaining > geometry->pageSize) {
bytesTotalThisIteration = geometry->pageSize - tailIndexInPage;
} else {