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cc2538: spi: Add support for dynamic instances

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Previously, only constants could be used to pass SPI instances to the
SPI driver. This change makes it possible to use SPI instances from
variables.

Signed-off-by: Benoît Thébaudeau <benoit@wsystem.com>
This commit is contained in:
Benoît Thébaudeau 2016-11-17 17:50:01 +01:00 • committed by Benoît Thébaudeau
parent 0e5b18635b
commit c76b8235f4
2 changed files with 7 additions and 5 deletions
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10
cpu/cc2538/spi-arch.h
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@ -109,17 +109,17 @@
/*---------------------------------------------------------------------------*/
/* New API macros */
#define SPIX_WAITFORTxREADY(spi) do { \
while(!(REG(CC_CONCAT3(SSI, spi, _BASE) + SSI_SR) & SSI_SR_TNF)) ; \
while(!(REG(SSI_BASE(spi) + SSI_SR) & SSI_SR_TNF)) ; \
} while(0)
#define SPIX_BUF(spi) REG(CC_CONCAT3(SSI, spi, _BASE) + SSI_DR)
#define SPIX_BUF(spi) REG(SSI_BASE(spi) + SSI_DR)
#define SPIX_WAITFOREOTx(spi) do { \
while(REG(CC_CONCAT3(SSI, spi, _BASE) + SSI_SR) & SSI_SR_BSY) ; \
while(REG(SSI_BASE(spi) + SSI_SR) & SSI_SR_BSY) ; \
} while(0)
#define SPIX_WAITFOREORx(spi) do { \
while(!(REG(CC_CONCAT3(SSI, spi, _BASE) + SSI_SR) & SSI_SR_RNE)) ; \
while(!(REG(SSI_BASE(spi) + SSI_SR) & SSI_SR_RNE)) ; \
} while(0)
#define SPIX_FLUSH(spi) do { \
while(REG(CC_CONCAT3(SSI, spi, _BASE) + SSI_SR) & SSI_SR_RNE) { \
while(REG(SSI_BASE(spi) + SSI_SR) & SSI_SR_RNE) { \
SPIX_BUF(spi); \
} \
} while(0)