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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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13
src/main/drivers/max7456.c
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@ -174,8 +174,12 @@
// On shared SPI buss we want to change clock for OSD chip and restore for other devices.
#ifdef USE_SPI_TRANSACTION
#define __spiBusTransactionBegin(busdev) spiBusTransactionBegin(busdev)
#define __spiBusTransactionEnd(busdev) spiBusTransactionEnd(busdev)
#else
#ifdef MAX7456_SPI_CLK
#define __spiBusTransactionBegin(busdev) {spiSetDivisor((busdev)->busdev_u.spi.instance, max7456SpiClock);IOLo((busdev)->busdev_u.spi.csnPin);}
#define __spiBusTransactionBegin(busdev) {spiBusSetDivisor(busdev, max7456SpiClock);IOLo((busdev)->busdev_u.spi.csnPin);}
#else
#define __spiBusTransactionBegin(busdev) IOLo((busdev)->busdev_u.spi.csnPin)
#endif
@ -185,6 +189,7 @@
#else
#define __spiBusTransactionEnd(busdev) IOHi((busdev)->busdev_u.spi.csnPin)
#endif
#endif
busDevice_t max7456BusDevice;
busDevice_t *busdev = &max7456BusDevice;
@ -476,7 +481,11 @@ bool max7456Init(const max7456Config_t *max7456Config, const vcdProfile_t *pVcdP
UNUSED(cpuOverclock);
#endif
spiSetDivisor(busdev->busdev_u.spi.instance, max7456SpiClock);
#ifdef USE_SPI_TRANSACTION
spiBusTransactionInit(busdev, SPI_MODE3_POL_HIGH_EDGE_2ND, max7456SpiClock);
#else
spiBusSetDivisor(busdev, max7456SpiClock);
#endif
// force soft reset on Max7456
__spiBusTransactionBegin(busdev);