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Added non-blocking SPI DMA support for access to FLASH for BB

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This commit is contained in:
Steve Evans 2021-04-20 19:45:56 +01:00
parent 83a98f743c
commit 432b80167f
12 changed files with 341 additions and 265 deletions
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37
src/main/drivers/flash.c
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@ -252,31 +252,46 @@ void flashEraseCompletely(void)
flashDevice.vTable->eraseCompletely(&flashDevice);
}
void flashPageProgramBegin(uint32_t address)
/* The callback, if provided, will receive the totoal number of bytes transfered
* by each call to flashPageProgramContinue() once the transfer completes.
*/
void flashPageProgramBegin(uint32_t address, void (*callback)(uint32_t length))
{
flashDevice.callback = NULL;
flashDevice.vTable->pageProgramBegin(&flashDevice, address);
flashDevice.vTable->pageProgramBegin(&flashDevice, address, callback);
}
void flashPageProgramContinue(const uint8_t *data, int length)
uint32_t flashPageProgramContinue(const uint8_t **buffers, uint32_t *bufferSizes, uint32_t bufferCount)
{
flashDevice.callback = NULL;
flashDevice.vTable->pageProgramContinue(&flashDevice, data, length);
uint32_t maxBytesToWrite = flashDevice.geometry.pageSize - (flashDevice.currentWriteAddress % flashDevice.geometry.pageSize);
if (bufferCount == 0) {
return 0;
}
if (bufferSizes[0] >= maxBytesToWrite) {
bufferSizes[0] = maxBytesToWrite;
bufferCount = 1;
} else {
maxBytesToWrite -= bufferSizes[0];
if ((bufferCount == 2) && (bufferSizes[1] > maxBytesToWrite)) {
bufferSizes[1] = maxBytesToWrite;
}
}
return flashDevice.vTable->pageProgramContinue(&flashDevice, buffers, bufferSizes, bufferCount);
}
void flashPageProgramFinish(void)
{
flashDevice.callback = NULL;
flashDevice.vTable->pageProgramFinish(&flashDevice);
}
void flashPageProgram(uint32_t address, const uint8_t *data, int length)
void flashPageProgram(uint32_t address, const uint8_t *data, uint32_t length, void (*callback)(uint32_t length))
{
flashDevice.callback = NULL;
flashDevice.vTable->pageProgram(&flashDevice, address, data, length);
flashDevice.vTable->pageProgram(&flashDevice, address, data, length, callback);
}
int flashReadBytes(uint32_t address, uint8_t *buffer, int length)
int flashReadBytes(uint32_t address, uint8_t *buffer, uint32_t length)
{
flashDevice.callback = NULL;
return flashDevice.vTable->readBytes(&flashDevice, address, buffer, length);