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@ -77,9 +77,9 @@ static uint16_t dummyrx;
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*/
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*/
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static void spi_serve_interrupt(SPIDriver *spip)
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static void spi_serve_interrupt(SPIDriver *spip)
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{
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{
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SSI_TypeDef *ssi = spip->ssi;
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uint32_t ssi = spip->ssi;
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uint32_t mis = ssi->MIS;
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uint32_t mis = HWREG(ssi + SSI_O_MIS);
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uint32_t dmachis = UDMA->CHIS;
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uint32_t dmachis = HWREG(UDMA_CHIS);
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/* SPI error handling.*/
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/* SPI error handling.*/
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if ((mis & (TIVA_MIS_RORMIS | TIVA_MIS_RTMIS)) != 0) {
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if ((mis & (TIVA_MIS_RORMIS | TIVA_MIS_RTMIS)) != 0) {
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@ -89,7 +89,7 @@ static void spi_serve_interrupt(SPIDriver *spip)
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if ( (dmachis & ( (1 << spip->dmarxnr) | (1 << spip->dmatxnr) ) ) ==
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if ( (dmachis & ( (1 << spip->dmarxnr) | (1 << spip->dmatxnr) ) ) ==
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( (1 << spip->dmarxnr) | (1 << spip->dmatxnr) ) ) {
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( (1 << spip->dmarxnr) | (1 << spip->dmatxnr) ) ) {
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/* Clear DMA Channel interrupts.*/
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/* Clear DMA Channel interrupts.*/
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UDMA->CHIS = (1 << spip->dmarxnr) | (1 << spip->dmatxnr);
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HWREG(UDMA_CHIS) = (1 << spip->dmarxnr) | (1 << spip->dmatxnr);
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/* Portable SPI ISR code defined in the high level driver, note, it is a
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/* Portable SPI ISR code defined in the high level driver, note, it is a
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macro.*/
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macro.*/
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@ -180,7 +180,7 @@ void spi_lld_init(void)
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#if TIVA_SPI_USE_SSI0
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#if TIVA_SPI_USE_SSI0
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spiObjectInit(&SPID1);
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spiObjectInit(&SPID1);
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SPID1.ssi = SSI0;
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SPID1.ssi = SSI0_BASE;
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SPID1.dmarxnr = TIVA_SPI_SSI0_RX_UDMA_CHANNEL;
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SPID1.dmarxnr = TIVA_SPI_SSI0_RX_UDMA_CHANNEL;
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SPID1.dmatxnr = TIVA_SPI_SSI0_TX_UDMA_CHANNEL;
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SPID1.dmatxnr = TIVA_SPI_SSI0_TX_UDMA_CHANNEL;
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SPID1.rxchnmap = TIVA_SPI_SSI0_RX_UDMA_MAPPING;
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SPID1.rxchnmap = TIVA_SPI_SSI0_RX_UDMA_MAPPING;
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@ -189,7 +189,7 @@ void spi_lld_init(void)
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#if TIVA_SPI_USE_SSI1
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#if TIVA_SPI_USE_SSI1
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spiObjectInit(&SPID2);
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spiObjectInit(&SPID2);
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SPID2.ssi = SSI1;
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SPID2.ssi = SSI1_BASE;
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SPID2.dmarxnr = TIVA_SPI_SSI1_RX_UDMA_CHANNEL;
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SPID2.dmarxnr = TIVA_SPI_SSI1_RX_UDMA_CHANNEL;
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SPID2.dmatxnr = TIVA_SPI_SSI1_TX_UDMA_CHANNEL;
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SPID2.dmatxnr = TIVA_SPI_SSI1_TX_UDMA_CHANNEL;
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SPID2.rxchnmap = TIVA_SPI_SSI1_RX_UDMA_MAPPING;
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SPID2.rxchnmap = TIVA_SPI_SSI1_RX_UDMA_MAPPING;
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@ -198,7 +198,7 @@ void spi_lld_init(void)
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#if TIVA_SPI_USE_SSI2
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#if TIVA_SPI_USE_SSI2
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spiObjectInit(&SPID3);
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spiObjectInit(&SPID3);
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SPID3.ssi = SSI2;
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SPID3.ssi = SSI2_BASE;
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SPID3.dmarxnr = TIVA_SPI_SSI2_RX_UDMA_CHANNEL;
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SPID3.dmarxnr = TIVA_SPI_SSI2_RX_UDMA_CHANNEL;
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SPID3.dmatxnr = TIVA_SPI_SSI2_TX_UDMA_CHANNEL;
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SPID3.dmatxnr = TIVA_SPI_SSI2_TX_UDMA_CHANNEL;
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SPID3.rxchnmap = TIVA_SPI_SSI2_RX_UDMA_MAPPING;
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SPID3.rxchnmap = TIVA_SPI_SSI2_RX_UDMA_MAPPING;
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@ -207,7 +207,7 @@ void spi_lld_init(void)
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#if TIVA_SPI_USE_SSI3
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#if TIVA_SPI_USE_SSI3
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spiObjectInit(&SPID4);
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spiObjectInit(&SPID4);
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SPID4.ssi = SSI3;
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SPID4.ssi = SSI3_BASE;
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SPID4.dmarxnr = TIVA_SPI_SSI3_RX_UDMA_CHANNEL;
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SPID4.dmarxnr = TIVA_SPI_SSI3_RX_UDMA_CHANNEL;
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SPID4.dmatxnr = TIVA_SPI_SSI3_TX_UDMA_CHANNEL;
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SPID4.dmatxnr = TIVA_SPI_SSI3_TX_UDMA_CHANNEL;
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SPID4.rxchnmap = TIVA_SPI_SSI3_RX_UDMA_MAPPING;
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SPID4.rxchnmap = TIVA_SPI_SSI3_RX_UDMA_MAPPING;
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@ -235,8 +235,8 @@ void spi_lld_start(SPIDriver *spip)
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osalDbgAssert(!b, "channel already allocated");
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osalDbgAssert(!b, "channel already allocated");
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/* Enable SSI0 module.*/
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/* Enable SSI0 module.*/
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SYSCTL->RCGCSSI |= (1 << 0);
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HWREG(SYSCTL_RCGCSSI) |= (1 << 0);
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while (!(SYSCTL->PRSSI & (1 << 0)))
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while (!(HWREG(SYSCTL_PRSSI) & (1 << 0)))
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;
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;
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nvicEnableVector(TIVA_SSI0_NUMBER, TIVA_SPI_SSI0_IRQ_PRIORITY);
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nvicEnableVector(TIVA_SSI0_NUMBER, TIVA_SPI_SSI0_IRQ_PRIORITY);
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@ -251,8 +251,8 @@ void spi_lld_start(SPIDriver *spip)
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osalDbgAssert(!b, "channel already allocated");
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osalDbgAssert(!b, "channel already allocated");
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/* Enable SSI0 module.*/
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/* Enable SSI0 module.*/
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SYSCTL->RCGCSSI |= (1 << 1);
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HWREG(SYSCTL_RCGCSSI) |= (1 << 1);
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while (!(SYSCTL->PRSSI & (1 << 1)))
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while (!(HWREG(SYSCTL_PRSSI) & (1 << 1)))
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;
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;
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nvicEnableVector(TIVA_SSI1_NUMBER, TIVA_SPI_SSI1_IRQ_PRIORITY);
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nvicEnableVector(TIVA_SSI1_NUMBER, TIVA_SPI_SSI1_IRQ_PRIORITY);
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@ -267,8 +267,8 @@ void spi_lld_start(SPIDriver *spip)
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osalDbgAssert(!b, "channel already allocated");
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osalDbgAssert(!b, "channel already allocated");
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/* Enable SSI0 module.*/
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/* Enable SSI0 module.*/
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SYSCTL->RCGCSSI |= (1 << 2);
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HWREG(SYSCTL_RCGCSSI) |= (1 << 2);
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while (!(SYSCTL->PRSSI & (1 << 2)))
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while (!(HWREG(SYSCTL_PRSSI) & (1 << 2)))
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;
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;
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nvicEnableVector(TIVA_SSI2_NUMBER, TIVA_SPI_SSI2_IRQ_PRIORITY);
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nvicEnableVector(TIVA_SSI2_NUMBER, TIVA_SPI_SSI2_IRQ_PRIORITY);
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@ -283,40 +283,40 @@ void spi_lld_start(SPIDriver *spip)
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osalDbgAssert(!b, "channel already allocated");
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osalDbgAssert(!b, "channel already allocated");
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/* Enable SSI0 module.*/
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/* Enable SSI0 module.*/
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SYSCTL->RCGCSSI |= (1 << 3);
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HWREG(SYSCTL_RCGCSSI) |= (1 << 3);
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while (!(SYSCTL->PRSSI & (1 << 3)))
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while (!(HWREG(SYSCTL_PRSSI) & (1 << 3)))
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;
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;
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nvicEnableVector(TIVA_SSI3_NUMBER, TIVA_SPI_SSI3_IRQ_PRIORITY);
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nvicEnableVector(TIVA_SSI3_NUMBER, TIVA_SPI_SSI3_IRQ_PRIORITY);
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}
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}
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#endif
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#endif
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UDMA->CHMAP[spip->dmarxnr / 8] |= (spip->rxchnmap << (spip->dmarxnr % 8));
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HWREG(UDMA_CHMAP0 + (spip->dmarxnr / 8) * 4) |= (spip->rxchnmap << (spip->dmarxnr % 8));
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UDMA->CHMAP[spip->dmatxnr / 8] |= (spip->txchnmap << (spip->dmatxnr % 8));
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HWREG(UDMA_CHMAP0 + (spip->dmatxnr / 8) * 4) |= (spip->txchnmap << (spip->dmatxnr % 8));
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}
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}
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/* Set master operation mode.*/
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/* Set master operation mode.*/
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spip->ssi->CR1 = 0;
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HWREG(spip->ssi + SSI_O_CR1) = 0;
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/* Clock configuration - System Clock.*/
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/* Clock configuration - System Clock.*/
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spip->ssi->CC = 0;
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HWREG(spip->ssi + SSI_O_CC) = 0;
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/* Clear pending interrupts.*/
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/* Clear pending interrupts.*/
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spip->ssi->ICR = TIVA_ICR_RTIC | TIVA_ICR_RORIC;
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HWREG(spip->ssi + SSI_O_ICR) = TIVA_ICR_RTIC | TIVA_ICR_RORIC;
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/* Enable Receive Time-Out and Receive Overrun Interrupts.*/
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/* Enable Receive Time-Out and Receive Overrun Interrupts.*/
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spip->ssi->IM = TIVA_IM_RTIM | TIVA_IM_RORIM;
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HWREG(spip->ssi + SSI_O_IM) = TIVA_IM_RTIM | TIVA_IM_RORIM;
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/* Configure the clock prescale divisor.*/
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/* Configure the clock prescale divisor.*/
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spip->ssi->CPSR = spip->config->cpsr;
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HWREG(spip->ssi + SSI_O_CPSR) = spip->config->cpsr;
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/* Serial clock rate, phase/polarity, data size, fixed SPI frame format.*/
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/* Serial clock rate, phase/polarity, data size, fixed SPI frame format.*/
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spip->ssi->CR0 = (spip->config->cr0 & ~TIVA_CR0_FRF_MASK) | TIVA_CR0_FRF(0);
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HWREG(spip->ssi + SSI_O_CR0) = (spip->config->cr0 & ~TIVA_CR0_FRF_MASK) | TIVA_CR0_FRF(0);
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/* Enable SSI.*/
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/* Enable SSI.*/
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spip->ssi->CR1 |= TIVA_CR1_SSE;
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HWREG(spip->ssi + SSI_O_CR1) |= TIVA_CR1_SSE;
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/* Enable RX and TX DMA channels.*/
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/* Enable RX and TX DMA channels.*/
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spip->ssi->DMACTL = (TIVA_DMACTL_TXDMAE | TIVA_DMACTL_RXDMAE);
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HWREG(spip->ssi + SSI_O_DMACTL) = (TIVA_DMACTL_TXDMAE | TIVA_DMACTL_RXDMAE);
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}
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}
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/**
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/**
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@ -329,9 +329,9 @@ void spi_lld_start(SPIDriver *spip)
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void spi_lld_stop(SPIDriver *spip)
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void spi_lld_stop(SPIDriver *spip)
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{
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{
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if (spip->state != SPI_STOP) {
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if (spip->state != SPI_STOP) {
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spip->ssi->CR1 = 0;
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HWREG(spip->ssi + SSI_O_CR1) = 0;
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spip->ssi->CR0 = 0;
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HWREG(spip->ssi + SSI_O_CR0) = 0;
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spip->ssi->CPSR = 0;
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HWREG(spip->ssi + SSI_O_CPSR) = 0;
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udmaChannelRelease(spip->dmarxnr);
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udmaChannelRelease(spip->dmarxnr);
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udmaChannelRelease(spip->dmatxnr);
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udmaChannelRelease(spip->dmatxnr);
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@ -402,14 +402,14 @@ void spi_lld_ignore(SPIDriver *spip, size_t n)
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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/* Configure for 8-bit transfers.*/
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/* Configure for 8-bit transfers.*/
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primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
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primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
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primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERMODE_BASIC;
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UDMA_CHCTL_XFERMODE_BASIC;
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primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
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primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmarxnr].dstendp = &dummyrx;
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primary[spip->dmarxnr].dstendp = &dummyrx;
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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@ -420,14 +420,14 @@ void spi_lld_ignore(SPIDriver *spip, size_t n)
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else {
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else {
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/* Configure for 16-bit transfers.*/
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/* Configure for 16-bit transfers.*/
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primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
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primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
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primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERMODE_BASIC;
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UDMA_CHCTL_XFERMODE_BASIC;
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primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
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primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmarxnr].dstendp = &dummyrx;
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primary[spip->dmarxnr].dstendp = &dummyrx;
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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@ -473,14 +473,14 @@ void spi_lld_exchange(SPIDriver *spip, size_t n, const void *txbuf, void *rxbuf)
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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/* Configure for 8-bit transfers.*/
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/* Configure for 8-bit transfers.*/
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+n-1;
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+n-1;
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primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_8 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_8 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERMODE_BASIC;
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UDMA_CHCTL_XFERMODE_BASIC;
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primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
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primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmarxnr].dstendp = rxbuf+n-1;
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primary[spip->dmarxnr].dstendp = rxbuf+n-1;
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_8 |
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_8 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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@ -491,14 +491,14 @@ void spi_lld_exchange(SPIDriver *spip, size_t n, const void *txbuf, void *rxbuf)
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else {
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else {
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/* Configure for 16-bit transfers.*/
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/* Configure for 16-bit transfers.*/
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+(n*2)-1;
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+(n*2)-1;
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primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_16 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_16 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERSIZE(n) |
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UDMA_CHCTL_XFERMODE_BASIC;
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UDMA_CHCTL_XFERMODE_BASIC;
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primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
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primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmarxnr].dstendp = rxbuf+(n*2)-1;
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primary[spip->dmarxnr].dstendp = rxbuf+(n*2)-1;
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_16 |
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primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_16 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
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@ -542,14 +542,14 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf)
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
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|
/* Configure for 8-bit transfers.*/
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/* Configure for 8-bit transfers.*/
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+n-1;
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primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+n-1;
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primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_8 |
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UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_8 |
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UDMA_CHCTL_ARBSIZE_4 |
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UDMA_CHCTL_ARBSIZE_4 |
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|
UDMA_CHCTL_XFERSIZE(n) |
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|
UDMA_CHCTL_XFERSIZE(n) |
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|
UDMA_CHCTL_XFERMODE_BASIC;
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|
UDMA_CHCTL_XFERMODE_BASIC;
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primary[spip->dmarxnr].dstendp = &spip->ssi->DR;
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primary[spip->dmarxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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primary[spip->dmarxnr].srcendp = &dummyrx;
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primary[spip->dmarxnr].srcendp = &dummyrx;
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|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
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|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
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|
|
@ -560,14 +560,14 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf)
|
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|
|
else {
|
|
|
|
else {
|
|
|
|
/* Configure for 16-bit transfers.*/
|
|
|
|
/* Configure for 16-bit transfers.*/
|
|
|
|
primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+(n*2)-1;
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|
|
primary[spip->dmatxnr].srcendp = (volatile void *)txbuf+(n*2)-1;
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|
primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
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|
primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
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|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
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|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_16 |
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|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_16 |
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|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
|
|
|
|
|
|
|
|
primary[spip->dmarxnr].dstendp = &spip->ssi->DR;
|
|
|
|
primary[spip->dmarxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
|
|
|
|
primary[spip->dmarxnr].srcendp = &dummyrx;
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|
|
|
primary[spip->dmarxnr].srcendp = &dummyrx;
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
@ -611,14 +611,14 @@ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf)
|
|
|
|
if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
|
|
|
|
if ((spip->config->cr0 & TIVA_CR0_DSS_MASK) < 8) {
|
|
|
|
/* Configure for 8-bit transfers.*/
|
|
|
|
/* Configure for 8-bit transfers.*/
|
|
|
|
primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
|
|
|
|
primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
|
|
|
|
primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
|
|
|
|
primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
|
|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
|
|
|
|
|
|
|
|
primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
|
|
|
|
primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
|
|
|
|
primary[spip->dmarxnr].dstendp = rxbuf+n-1;
|
|
|
|
primary[spip->dmarxnr].dstendp = rxbuf+n-1;
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_8 |
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_8 | UDMA_CHCTL_DSTINC_8 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_8 | UDMA_CHCTL_SRCINC_0 |
|
|
|
@ -629,14 +629,14 @@ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf)
|
|
|
|
else {
|
|
|
|
else {
|
|
|
|
/* Configure for 16-bit transfers.*/
|
|
|
|
/* Configure for 16-bit transfers.*/
|
|
|
|
primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
|
|
|
|
primary[spip->dmatxnr].srcendp = (volatile void *)&dummytx;
|
|
|
|
primary[spip->dmatxnr].dstendp = &spip->ssi->DR;
|
|
|
|
primary[spip->dmatxnr].dstendp = (void *)(spip->ssi + SSI_O_DR);
|
|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
primary[spip->dmatxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_ARBSIZE_4 |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERSIZE(n) |
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
UDMA_CHCTL_XFERMODE_BASIC;
|
|
|
|
|
|
|
|
|
|
|
|
primary[spip->dmarxnr].srcendp = &spip->ssi->DR;
|
|
|
|
primary[spip->dmarxnr].srcendp = (void *)(spip->ssi + SSI_O_DR);
|
|
|
|
primary[spip->dmarxnr].dstendp = rxbuf+(n*2)-1;
|
|
|
|
primary[spip->dmarxnr].dstendp = rxbuf+(n*2)-1;
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_16 |
|
|
|
|
primary[spip->dmarxnr].chctl = UDMA_CHCTL_DSTSIZE_16 | UDMA_CHCTL_DSTINC_16 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
|
UDMA_CHCTL_SRCSIZE_16 | UDMA_CHCTL_SRCINC_0 |
|
|
|
@ -674,10 +674,10 @@ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf)
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame)
|
|
|
|
uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
spip->ssi->DR = (uint32_t)frame;
|
|
|
|
HWREG(spip->ssi + SSI_O_DR) = (uint32_t)frame;
|
|
|
|
while ((spip->ssi->SR & TIVA_SR_RNE) == 0)
|
|
|
|
while ((HWREG(spip->ssi + SSI_O_SR) & TIVA_SR_RNE) == 0)
|
|
|
|
;
|
|
|
|
;
|
|
|
|
return (uint16_t)spip->ssi->DR;
|
|
|
|
return (uint16_t)HWREG(spip->ssi + SSI_O_DR);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* HAL_USE_SPI */
|
|
|
|
#endif /* HAL_USE_SPI */
|
|
|
|