diff options
Diffstat (limited to 'os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.c')
| -rw-r--r-- | os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.c | 602 |
1 files changed, 0 insertions, 602 deletions
diff --git a/os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.c b/os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.c deleted file mode 100644 index 71247b236..000000000 --- a/os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.c +++ /dev/null @@ -1,602 +0,0 @@ -/*
- SPC5 HAL - Copyright (C) 2013 STMicroelectronics
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-/**
- * @file SPC5xx/LINFlex_v1/serial_lld.c
- * @brief SPC5xx low level serial driver code.
- *
- * @addtogroup SERIAL
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_SERIAL || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/**
- * @brief LIINFlex-0 serial driver identifier.
- */
-#if SPC5_SERIAL_USE_LINFLEX0 || defined(__DOXYGEN__)
-SerialDriver SD1;
-#endif
-
-/**
- * @brief LIINFlex-1 serial driver identifier.
- */
-#if SPC5_SERIAL_USE_LINFLEX1 || defined(__DOXYGEN__)
-SerialDriver SD2;
-#endif
-
-/**
- * @brief LIINFlex-2 serial driver identifier.
- */
-#if SPC5_SERIAL_USE_LINFLEX2 || defined(__DOXYGEN__)
-SerialDriver SD3;
-#endif
-
-/**
- * @brief LIINFlex-3 serial driver identifier.
- */
-#if SPC5_SERIAL_USE_LINFLEX3 || defined(__DOXYGEN__)
-SerialDriver SD4;
-#endif
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/**
- * @brief Driver default configuration.
- */
-static const SerialConfig default_config = {
- SERIAL_DEFAULT_BITRATE,
- SD_MODE_8BITS_PARITY_NONE
-};
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/**
- * @brief LINFlex initialization.
- * @details This function must be invoked with interrupts disabled.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- * @param[in] config the architecture-dependent serial driver configuration
- */
-static void spc5_linflex_init(SerialDriver *sdp, const SerialConfig *config) {
- uint32_t div;
- volatile struct spc5_linflex *linflexp = sdp->linflexp;
-
- /* Enters the configuration mode.*/
- linflexp->LINCR1.R = 1; /* INIT bit. */
-
- /* Configures the LINFlex in UART mode with all the required
- parameters.*/
- linflexp->UARTCR.R = SPC5_UARTCR_UART; /* UART mode FIRST. */
- linflexp->UARTCR.R = SPC5_UARTCR_UART | SPC5_UARTCR_RXEN | config->mode;
- div = SPC5_LINFLEX0_CLK / config->speed;
- linflexp->LINFBRR.R = (uint16_t)(div & 15); /* Fractional divider. */
- linflexp->LINIBRR.R = (uint16_t)(div >> 4); /* Integer divider. */
- linflexp->UARTSR.R = 0xFFFF; /* Clearing UARTSR register.*/
- linflexp->LINIER.R = SPC5_LINIER_DTIE | SPC5_LINIER_DRIE |
- SPC5_LINIER_BOIE | SPC5_LINIER_FEIE |
- SPC5_LINIER_SZIE; /* Interrupts enabled. */
-
- /* Leaves the configuration mode.*/
- linflexp->LINCR1.R = 0;
-}
-
-/**
- * @brief LINFlex de-initialization.
- * @details This function must be invoked with interrupts disabled.
- *
- * @param[in] linflexp pointer to a LINFlex I/O block
- */
-static void spc5_linflex_deinit(volatile struct spc5_linflex *linflexp) {
-
- /* Enters the configuration mode.*/
- linflexp->LINCR1.R = 1; /* INIT bit. */
-
- /* Resets the LINFlex registers.*/
- linflexp->LINFBRR.R = 0; /* Fractional divider. */
- linflexp->LINIBRR.R = 0; /* Integer divider. */
- linflexp->UARTSR.R = 0xFFFF; /* Clearing UARTSR register.*/
- linflexp->UARTCR.R = SPC5_UARTCR_UART;
- linflexp->LINIER.R = 0; /* Interrupts disabled. */
-
- /* Leaves the configuration mode.*/
- linflexp->LINCR1.R = 0;
-}
-
-/**
- * @brief Common RXI IRQ handler.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- */
-static void spc5xx_serve_rxi_interrupt(SerialDriver *sdp) {
- flagsmask_t sts = 0;
- uint16_t sr = sdp->linflexp->UARTSR.R;
-
- sdp->linflexp->UARTSR.R = SPC5_UARTSR_NF | SPC5_UARTSR_DRF |
- SPC5_UARTSR_PE0;
- if (sr & SPC5_UARTSR_NF)
- sts |= SD_NOISE_ERROR;
- if (sr & SPC5_UARTSR_PE0)
- sts |= SD_PARITY_ERROR;
- chSysLockFromIsr();
- if (sts)
- chnAddFlagsI(sdp, sts);
- if (sr & SPC5_UARTSR_DRF) {
- sdIncomingDataI(sdp, sdp->linflexp->BDRM.B.DATA4);
- sdp->linflexp->UARTSR.R = SPC5_UARTSR_RMB;
- }
- chSysUnlockFromIsr();
-}
-
-/**
- * @brief Common TXI IRQ handler.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- */
-static void spc5xx_serve_txi_interrupt(SerialDriver *sdp) {
- msg_t b;
-
- sdp->linflexp->UARTSR.R = SPC5_UARTSR_DTF;
- chSysLockFromIsr();
- b = chOQGetI(&sdp->oqueue);
- if (b < Q_OK) {
- chnAddFlagsI(sdp, CHN_OUTPUT_EMPTY);
- sdp->linflexp->UARTCR.B.TXEN = 0;
- }
- else
- sdp->linflexp->BDRL.B.DATA0 = b;
- chSysUnlockFromIsr();
-}
-
-/**
- * @brief Common ERR IRQ handler.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- */
-static void spc5xx_serve_err_interrupt(SerialDriver *sdp) {
- flagsmask_t sts = 0;
- uint16_t sr = sdp->linflexp->UARTSR.R;
-
- sdp->linflexp->UARTSR.R = SPC5_UARTSR_BOF | SPC5_UARTSR_FEF |
- SPC5_UARTSR_SZF;
- if (sr & SPC5_UARTSR_BOF)
- sts |= SD_OVERRUN_ERROR;
- if (sr & SPC5_UARTSR_FEF)
- sts |= SD_FRAMING_ERROR;
- if (sr & SPC5_UARTSR_SZF)
- sts |= SD_BREAK_DETECTED;
- chSysLockFromIsr();
- chnAddFlagsI(sdp, sts);
- chSysUnlockFromIsr();
-}
-
-#if SPC5_SERIAL_USE_LINFLEX0 || defined(__DOXYGEN__)
-static void notify1(GenericQueue *qp) {
-
- (void)qp;
- if (!SD1.linflexp->UARTCR.B.TXEN) {
- msg_t b = sdRequestDataI(&SD1);
- if (b != Q_EMPTY) {
- SD1.linflexp->UARTCR.B.TXEN = 1;
- SD1.linflexp->BDRL.B.DATA0 = b;
- }
- }
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX1 || defined(__DOXYGEN__)
-static void notify2(GenericQueue *qp) {
-
- (void)qp;
- if (!SD2.linflexp->UARTCR.B.TXEN) {
- msg_t b = sdRequestDataI(&SD2);
- if (b != Q_EMPTY) {
- SD2.linflexp->UARTCR.B.TXEN = 1;
- SD2.linflexp->BDRL.B.DATA0 = b;
- }
- }
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX2 || defined(__DOXYGEN__)
-static void notify3(GenericQueue *qp) {
-
- (void)qp;
- if (!SD3.linflexp->UARTCR.B.TXEN) {
- msg_t b = sdRequestDataI(&SD3);
- if (b != Q_EMPTY) {
- SD3.linflexp->UARTCR.B.TXEN = 1;
- SD3.linflexp->BDRL.B.DATA0 = b;
- }
- }
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX3 || defined(__DOXYGEN__)
-static void notify4(GenericQueue *qp) {
-
- (void)qp;
- if (!SD4.linflexp->UARTCR.B.TXEN) {
- msg_t b = sdRequestDataI(&SD4);
- if (b != Q_EMPTY) {
- SD4.linflexp->UARTCR.B.TXEN = 1;
- SD4.linflexp->BDRL.B.DATA0 = b;
- }
- }
-}
-#endif
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-#if SPC5_SERIAL_USE_LINFLEX0 || defined(__DOXYGEN__)
-#if !defined(SPC5_LINFLEX0_RXI_HANDLER)
-#error "SPC5_LINFLEX0_RXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-0 RXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX0_RXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_rxi_interrupt(&SD1);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX0_TXI_HANDLER)
-#error "SPC5_LINFLEX0_TXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-0 TXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX0_TXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_txi_interrupt(&SD1);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX0_ERR_HANDLER)
-#error "SPC5_LINFLEX0_ERR_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-0 ERR interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX0_ERR_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_err_interrupt(&SD1);
-
- CH_IRQ_EPILOGUE();
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX1 || defined(__DOXYGEN__)
-#if !defined(SPC5_LINFLEX1_RXI_HANDLER)
-#error "SPC5_LINFLEX1_RXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-1 RXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX1_RXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_rxi_interrupt(&SD2);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX1_TXI_HANDLER)
-#error "SPC5_LINFLEX1_TXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-1 TXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX1_TXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_txi_interrupt(&SD2);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX1_ERR_HANDLER)
-#error "SPC5_LINFLEX1_ERR_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-1 ERR interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX1_ERR_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_err_interrupt(&SD2);
-
- CH_IRQ_EPILOGUE();
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX2 || defined(__DOXYGEN__)
-#if !defined(SPC5_LINFLEX2_RXI_HANDLER)
-#error "SPC5_LINFLEX2_RXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-2 RXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX2_RXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_rxi_interrupt(&SD3);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX2_TXI_HANDLER)
-#error "SPC5_LINFLEX2_TXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-2 TXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX2_TXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_txi_interrupt(&SD3);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX2_ERR_HANDLER)
-#error "SPC5_LINFLEX2_ERR_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-2 ERR interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX2_ERR_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_err_interrupt(&SD3);
-
- CH_IRQ_EPILOGUE();
-}
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX3 || defined(__DOXYGEN__)
-#if !defined(SPC5_LINFLEX3_RXI_HANDLER)
-#error "SPC5_LINFLEX3_RXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-3 RXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX3_RXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_rxi_interrupt(&SD4);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX3_TXI_HANDLER)
-#error "SPC5_LINFLEX3_TXI_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-3 TXI interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX3_TXI_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_txi_interrupt(&SD4);
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !defined(SPC5_LINFLEX3_ERR_HANDLER)
-#error "SPC5_LINFLEX3_ERR_HANDLER not defined"
-#endif
-/**
- * @brief LINFlex-3 ERR interrupt handler.
- *
- * @isr
- */
-CH_IRQ_HANDLER(SPC5_LINFLEX3_ERR_HANDLER) {
-
- CH_IRQ_PROLOGUE();
-
- spc5xx_serve_err_interrupt(&SD4);
-
- CH_IRQ_EPILOGUE();
-}
-#endif
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level serial driver initialization.
- *
- * @notapi
- */
-void sd_lld_init(void) {
-
-#if SPC5_SERIAL_USE_LINFLEX0
- sdObjectInit(&SD1, NULL, notify1);
- SD1.linflexp = &SPC5_LINFLEX0;
- INTC.PSR[SPC5_LINFLEX0_RXI_NUMBER].R = SPC5_SERIAL_LINFLEX0_PRIORITY;
- INTC.PSR[SPC5_LINFLEX0_TXI_NUMBER].R = SPC5_SERIAL_LINFLEX0_PRIORITY;
- INTC.PSR[SPC5_LINFLEX0_ERR_NUMBER].R = SPC5_SERIAL_LINFLEX0_PRIORITY;
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX1
- sdObjectInit(&SD2, NULL, notify2);
- SD2.linflexp = &SPC5_LINFLEX1;
- INTC.PSR[SPC5_LINFLEX1_RXI_NUMBER].R = SPC5_SERIAL_LINFLEX1_PRIORITY;
- INTC.PSR[SPC5_LINFLEX1_TXI_NUMBER].R = SPC5_SERIAL_LINFLEX1_PRIORITY;
- INTC.PSR[SPC5_LINFLEX1_ERR_NUMBER].R = SPC5_SERIAL_LINFLEX1_PRIORITY;
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX2
- sdObjectInit(&SD3, NULL, notify3);
- SD3.linflexp = &SPC5_LINFLEX2;
- INTC.PSR[SPC5_LINFLEX2_RXI_NUMBER].R = SPC5_SERIAL_LINFLEX2_PRIORITY;
- INTC.PSR[SPC5_LINFLEX2_TXI_NUMBER].R = SPC5_SERIAL_LINFLEX2_PRIORITY;
- INTC.PSR[SPC5_LINFLEX2_ERR_NUMBER].R = SPC5_SERIAL_LINFLEX2_PRIORITY;
-#endif
-
-#if SPC5_SERIAL_USE_LINFLEX3
- sdObjectInit(&SD4, NULL, notify4);
- SD4.linflexp = &SPC5_LINFLEX3;
- INTC.PSR[SPC5_LINFLEX3_RXI_NUMBER].R = SPC5_SERIAL_LINFLEX3_PRIORITY;
- INTC.PSR[SPC5_LINFLEX3_TXI_NUMBER].R = SPC5_SERIAL_LINFLEX3_PRIORITY;
- INTC.PSR[SPC5_LINFLEX3_ERR_NUMBER].R = SPC5_SERIAL_LINFLEX3_PRIORITY;
-#endif
-}
-
-/**
- * @brief Low level serial driver configuration and (re)start.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- * @param[in] config the architecture-dependent serial driver configuration.
- * If this parameter is set to @p NULL then a default
- * configuration is used.
- *
- * @notapi
- */
-void sd_lld_start(SerialDriver *sdp, const SerialConfig *config) {
-
- if (config == NULL)
- config = &default_config;
-
- if (sdp->state == SD_STOP) {
-#if SPC5_SERIAL_USE_LINFLEX0
- if (&SD1 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX0_PCTL,
- SPC5_SERIAL_LINFLEX0_START_PCTL);
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX1
- if (&SD2 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX1_PCTL,
- SPC5_SERIAL_LINFLEX1_START_PCTL);
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX2
- if (&SD3 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX2_PCTL,
- SPC5_SERIAL_LINFLEX2_START_PCTL);
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX3
- if (&SD4 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX3_PCTL,
- SPC5_SERIAL_LINFLEX3_START_PCTL);
- }
-#endif
- }
- spc5_linflex_init(sdp, config);
-}
-
-/**
- * @brief Low level serial driver stop.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- *
- * @notapi
- */
-void sd_lld_stop(SerialDriver *sdp) {
-
- if (sdp->state == SD_READY) {
- spc5_linflex_deinit(sdp->linflexp);
-
-#if SPC5_SERIAL_USE_LINFLEX0
- if (&SD1 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX0_PCTL,
- SPC5_SERIAL_LINFLEX0_STOP_PCTL);
- return;
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX1
- if (&SD2 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX1_PCTL,
- SPC5_SERIAL_LINFLEX1_STOP_PCTL);
- return;
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX2
- if (&SD3 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX2_PCTL,
- SPC5_SERIAL_LINFLEX2_STOP_PCTL);
- return;
- }
-#endif
-#if SPC5_SERIAL_USE_LINFLEX3
- if (&SD4 == sdp) {
- halSPCSetPeripheralClockMode(SPC5_LINFLEX3_PCTL,
- SPC5_SERIAL_LINFLEX3_STOP_PCTL);
- return;
- }
-#endif
- }
-}
-
-#endif /* HAL_USE_SERIAL */
-
-/** @} */
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