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Allow mixed speed and mode on a SPI bus by CR1 caching

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This commit is contained in:
jflyper 2018-01-06 04:50:19 +09:00
parent 4778ad6c0f
commit 343e9b3a67
22 changed files with 390 additions and 58 deletions
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29
src/main/drivers/flash_m25p16.c
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@ -80,6 +80,7 @@ STATIC_ASSERT(M25P16_PAGESIZE < FLASH_MAX_PAGE_SIZE, M25P16_PAGESIZE_too_small);
const flashVTable_t m25p16_vTable;
#ifndef USE_SPI_TRANSACTION
static void m25p16_disable(busDevice_t *bus)
{
IOHi(bus->busdev_u.spi.csnPin);
@ -91,12 +92,17 @@ static void m25p16_enable(busDevice_t *bus)
__NOP();
IOLo(bus->busdev_u.spi.csnPin);
}
#endif
static void m25p16_transfer(busDevice_t *bus, const uint8_t *txData, uint8_t *rxData, int len)
{
#ifdef USE_SPI_TRANSACTION
spiBusTransactionTransfer(bus, txData, rxData, len);
#else
m25p16_enable(bus);
spiTransfer(bus->busdev_u.spi.instance, txData, rxData, len);
m25p16_disable(bus);
#endif
}
/**
@ -104,11 +110,13 @@ static void m25p16_transfer(busDevice_t *bus, const uint8_t *txData, uint8_t *rx
*/
static void m25p16_performOneByteCommand(busDevice_t *bus, uint8_t command)
{
#ifdef USE_SPI_TRANSACTION
m25p16_transfer(bus, &command, NULL, 1);
#else
m25p16_enable(bus);
spiTransferByte(bus->busdev_u.spi.instance, command);
m25p16_disable(bus);
#endif
}
/**
@ -269,13 +277,20 @@ static void m25p16_pageProgramContinue(flashDevice_t *fdevice, const uint8_t *da
m25p16_writeEnable(fdevice);
#ifdef USE_SPI_TRANSACTION
spiBusTransactionBegin(fdevice->busdev);
#else
m25p16_enable(fdevice->busdev);
#endif
spiTransfer(fdevice->busdev->busdev_u.spi.instance, command, NULL, fdevice->isLargeFlash ? 5 : 4);
spiTransfer(fdevice->busdev->busdev_u.spi.instance, data, NULL, length);
#ifdef USE_SPI_TRANSACTION
spiBusTransactionEnd(fdevice->busdev);
#else
m25p16_disable(fdevice->busdev);
#endif
fdevice->currentWriteAddress += length;
}
@ -327,12 +342,20 @@ static int m25p16_readBytes(flashDevice_t *fdevice, uint32_t address, uint8_t *b
return 0;
}
#ifdef USE_SPI_TRANSACTION
spiBusTransactionBegin(fdevice->busdev);
#else
m25p16_enable(fdevice->busdev);
#endif
spiTransfer(fdevice->busdev->busdev_u.spi.instance, command, NULL, fdevice->isLargeFlash ? 5 : 4);
spiTransfer(fdevice->busdev->busdev_u.spi.instance, NULL, buffer, length);
#ifdef USE_SPI_TRANSACTION
spiBusTransactionEnd(fdevice->busdev);
#else
m25p16_disable(fdevice->busdev);
#endif
return length;
}