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Diffstat (limited to 'os/hal/platforms/LPC214x/spi_lld.c')
-rw-r--r--os/hal/platforms/LPC214x/spi_lld.c99
1 files changed, 50 insertions, 49 deletions
diff --git a/os/hal/platforms/LPC214x/spi_lld.c b/os/hal/platforms/LPC214x/spi_lld.c
index f920ecf87..e59087b25 100644
--- a/os/hal/platforms/LPC214x/spi_lld.c
+++ b/os/hal/platforms/LPC214x/spi_lld.c
@@ -1,5 +1,6 @@
/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@@ -53,21 +54,21 @@ SPIDriver SPID1;
* @param[in] spip pointer to the @p SPIDriver object
*/
static void ssp_fifo_preload(SPIDriver *spip) {
- SSP *ssp = spip->spd_ssp;
- uint32_t n = spip->spd_txcnt > LPC214x_SSP_FIFO_DEPTH ?
- LPC214x_SSP_FIFO_DEPTH : spip->spd_txcnt;
+ SSP *ssp = spip->ssp;
+ uint32_t n = spip->txcnt > LPC214x_SSP_FIFO_DEPTH ?
+ LPC214x_SSP_FIFO_DEPTH : spip->txcnt;
while(((ssp->SSP_SR & SR_TNF) != 0) && (n > 0)) {
- if (spip->spd_txptr != NULL) {
+ if (spip->txptr != NULL) {
if ((ssp->SSP_CR0 & CR0_DSSMASK) > CR0_DSS8BIT)
- ssp->SSP_DR = *(uint16_t *)spip->spd_txptr++;
+ ssp->SSP_DR = *(uint16_t *)spip->txptr++;
else
- ssp->SSP_DR = *(uint8_t *)spip->spd_txptr++;
+ ssp->SSP_DR = *(uint8_t *)spip->txptr++;
}
else
ssp->SSP_DR = 0xFFFFFFFF;
n--;
- spip->spd_txcnt--;
+ spip->txcnt--;
}
}
@@ -80,7 +81,7 @@ __attribute__((noinline))
* @param[in] spip pointer to the @p SPIDriver object
*/
static void serve_interrupt(SPIDriver *spip) {
- SSP *ssp = spip->spd_ssp;
+ SSP *ssp = spip->ssp;
if ((ssp->SSP_MIS & MIS_ROR) != 0) {
/* The overflow condition should never happen because priority is given
@@ -89,16 +90,16 @@ static void serve_interrupt(SPIDriver *spip) {
}
ssp->SSP_ICR = ICR_RT | ICR_ROR;
while ((ssp->SSP_SR & SR_RNE) != 0) {
- if (spip->spd_rxptr != NULL) {
+ if (spip->rxptr != NULL) {
if ((ssp->SSP_CR0 & CR0_DSSMASK) > CR0_DSS8BIT)
- *(uint16_t *)spip->spd_rxptr++ = ssp->SSP_DR;
+ *(uint16_t *)spip->rxptr++ = ssp->SSP_DR;
else
- *(uint8_t *)spip->spd_rxptr++ = ssp->SSP_DR;
+ *(uint8_t *)spip->rxptr++ = ssp->SSP_DR;
}
else
(void)ssp->SSP_DR;
- if (--spip->spd_rxcnt == 0) {
- chDbgAssert(spip->spd_txcnt == 0,
+ if (--spip->rxcnt == 0) {
+ chDbgAssert(spip->txcnt == 0,
"spi_serve_interrupt(), #1", "counter out of synch");
/* Stops the IRQ sources.*/
ssp->SSP_IMSC = 0;
@@ -109,7 +110,7 @@ static void serve_interrupt(SPIDriver *spip) {
}
}
ssp_fifo_preload(spip);
- if (spip->spd_txcnt == 0)
+ if (spip->txcnt == 0)
ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_RX;
}
@@ -147,7 +148,7 @@ void spi_lld_init(void) {
#if LPC214x_SPI_USE_SSP
spiObjectInit(&SPID1);
- SPID1.spd_ssp = SSPBase;
+ SPID1.ssp = SSPBase;
SetVICVector(SPI1IrqHandler, LPC214x_SPI_SSP_IRQ_PRIORITY, SOURCE_SPI1);
#endif
}
@@ -161,7 +162,7 @@ void spi_lld_init(void) {
*/
void spi_lld_start(SPIDriver *spip) {
- if (spip->spd_state == SPI_STOP) {
+ if (spip->state == SPI_STOP) {
/* Clock activation.*/
#if LPC214x_SPI_USE_SSP
if (&SPID1 == spip) {
@@ -171,14 +172,14 @@ void spi_lld_start(SPIDriver *spip) {
#endif
}
/* Configuration.*/
- spip->spd_ssp->SSP_CR1 = 0;
+ spip->ssp->SSP_CR1 = 0;
/* Emptying the receive FIFO, it happens to not be empty while debugging.*/
- while (spip->spd_ssp->SSP_SR & SR_RNE)
- (void) spip->spd_ssp->SSP_DR;
- spip->spd_ssp->SSP_ICR = ICR_RT | ICR_ROR;
- spip->spd_ssp->SSP_CR0 = spip->spd_config->spc_cr0;
- spip->spd_ssp->SSP_CPSR = spip->spd_config->spc_cpsr;
- spip->spd_ssp->SSP_CR1 = CR1_SSE;
+ while (spip->ssp->SSP_SR & SR_RNE)
+ (void) spip->ssp->SSP_DR;
+ spip->ssp->SSP_ICR = ICR_RT | ICR_ROR;
+ spip->ssp->SSP_CR0 = spip->config->cr0;
+ spip->ssp->SSP_CPSR = spip->config->cpsr;
+ spip->ssp->SSP_CR1 = CR1_SSE;
}
/**
@@ -190,10 +191,10 @@ void spi_lld_start(SPIDriver *spip) {
*/
void spi_lld_stop(SPIDriver *spip) {
- if (spip->spd_state != SPI_STOP) {
- spip->spd_ssp->SSP_CR1 = 0;
- spip->spd_ssp->SSP_CR0 = 0;
- spip->spd_ssp->SSP_CPSR = 0;
+ if (spip->state != SPI_STOP) {
+ spip->ssp->SSP_CR1 = 0;
+ spip->ssp->SSP_CR0 = 0;
+ spip->ssp->SSP_CPSR = 0;
#if LPC214x_SPI_USE_SSP
if (&SPID1 == spip) {
PCONP = (PCONP & PCALL) & ~PCSPI1;
@@ -212,7 +213,7 @@ void spi_lld_stop(SPIDriver *spip) {
*/
void spi_lld_select(SPIDriver *spip) {
- palClearPad(spip->spd_config->spc_ssport, spip->spd_config->spc_sspad);
+ palClearPad(spip->config->ssport, spip->config->sspad);
}
/**
@@ -225,7 +226,7 @@ void spi_lld_select(SPIDriver *spip) {
*/
void spi_lld_unselect(SPIDriver *spip) {
- palSetPad(spip->spd_config->spc_ssport, spip->spd_config->spc_sspad);
+ palSetPad(spip->config->ssport, spip->config->sspad);
}
/**
@@ -241,11 +242,11 @@ void spi_lld_unselect(SPIDriver *spip) {
*/
void spi_lld_ignore(SPIDriver *spip, size_t n) {
- spip->spd_rxptr = NULL;
- spip->spd_txptr = NULL;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = NULL;
+ spip->txptr = NULL;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -266,11 +267,11 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) {
void spi_lld_exchange(SPIDriver *spip, size_t n,
const void *txbuf, void *rxbuf) {
- spip->spd_rxptr = rxbuf;
- spip->spd_txptr = txbuf;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = rxbuf;
+ spip->txptr = txbuf;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -288,11 +289,11 @@ void spi_lld_exchange(SPIDriver *spip, size_t n,
*/
void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
- spip->spd_rxptr = NULL;
- spip->spd_txptr = txbuf;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = NULL;
+ spip->txptr = txbuf;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -310,11 +311,11 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
*/
void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
- spip->spd_rxptr = rxbuf;
- spip->spd_txptr = NULL;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = rxbuf;
+ spip->txptr = NULL;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->SSP_IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -331,10 +332,10 @@ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
*/
uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
- spip->spd_ssp->SSP_DR = (uint32_t)frame;
- while ((spip->spd_ssp->SSP_SR & SR_RNE) == 0)
+ spip->ssp->SSP_DR = (uint32_t)frame;
+ while ((spip->ssp->SSP_SR & SR_RNE) == 0)
;
- return (uint16_t)spip->spd_ssp->SSP_DR;
+ return (uint16_t)spip->ssp->SSP_DR;
}
#endif /* HAL_USE_SPI */
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-09 23:11:54 +0000