diff options
Diffstat (limited to 'os/hal/platforms/STM8S/serial_lld.c')
| -rw-r--r-- | os/hal/platforms/STM8S/serial_lld.c | 446 |
1 files changed, 0 insertions, 446 deletions
diff --git a/os/hal/platforms/STM8S/serial_lld.c b/os/hal/platforms/STM8S/serial_lld.c deleted file mode 100644 index fc49540a6..000000000 --- a/os/hal/platforms/STM8S/serial_lld.c +++ /dev/null @@ -1,446 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
-
- 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 STM8S/serial_lld.c
- * @brief STM8S low level serial driver code.
- *
- * @addtogroup SERIAL
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_SERIAL || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/**
- * @brief UART1 serial driver identifier.
- */
-#if STM8S_SERIAL_USE_UART1 || defined(__DOXYGEN__)
-SerialDriver SD1;
-#endif
-
-/**
- * @brief UART2 serial driver identifier.
- */
-#if STM8S_SERIAL_USE_UART2 || defined(__DOXYGEN__)
-SerialDriver SD2;
-#endif
-
-/**
- * @brief UART3 serial driver identifier.
- */
-#if STM8S_SERIAL_USE_UART3 || defined(__DOXYGEN__)
-SerialDriver SD3;
-#endif
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/**
- * @brief Driver default configuration.
- */
-static ROMCONST SerialConfig default_config = {
- BRR(SERIAL_DEFAULT_BITRATE),
- SD_MODE_PARITY_NONE | SD_MODE_STOP_1
-};
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-static void set_error(SerialDriver *sdp, uint8_t sr) {
- flagsmask_t sts = 0;
-
- /* Note, SR register bit definitions are equal for all UARTs so using
- the UART1 definitions is fine.*/
- if (sr & UART1_SR_OR)
- sts |= SD_OVERRUN_ERROR;
- if (sr & UART1_SR_NF)
- sts |= SD_NOISE_ERROR;
- if (sr & UART1_SR_FE)
- sts |= SD_FRAMING_ERROR;
- if (sr & UART1_SR_PE)
- sts |= SD_PARITY_ERROR;
- chSysLockFromIsr();
- chnAddFlagsI(sdp, sts);
- chSysUnlockFromIsr();
-}
-
-#if STM8S_SERIAL_USE_UART1 || defined(__DOXYGEN__)
-static void notify1(GenericQueue *qp) {
-
- (void)qp;
- UART1->CR2 |= UART1_CR2_TIEN;
-}
-
-/**
- * @brief UART1 initialization.
- *
- * @param[in] config architecture-dependent serial driver configuration
- */
-static void uart1_init(const SerialConfig *config) {
-
- UART1->BRR2 = (uint8_t)(((uint8_t)(config->sc_brr >> 8) & (uint8_t)0xF0) |
- ((uint8_t)config->sc_brr & (uint8_t)0x0F));
- UART1->BRR1 = (uint8_t)(config->sc_brr >> 4);
- UART1->CR1 = (uint8_t)(config->sc_mode &
- SD_MODE_PARITY); /* PIEN included. */
- UART1->CR2 = UART1_CR2_RIEN | UART1_CR2_TEN | UART1_CR2_REN;
- UART1->CR3 = (uint8_t)(config->sc_mode & SD_MODE_STOP);
- UART1->CR4 = 0;
- UART1->CR5 = 0;
- UART1->PSCR = 1;
- (void)UART1->SR;
- (void)UART1->DR;
-}
-
-/**
- * @brief UART1 de-initialization.
- */
-static void uart1_deinit(void) {
-
- UART1->CR1 = UART1_CR1_UARTD;
- UART1->CR2 = 0;
- UART1->CR3 = 0;
- UART1->CR4 = 0;
- UART1->CR5 = 0;
- UART1->PSCR = 0;
-}
-#endif /* STM8S_SERIAL_USE_UART1 */
-
-#if STM8S_SERIAL_USE_UART2 || defined(__DOXYGEN__)
-static void notify2(GenericQueue *qp) {
-
- (void)qp;
- UART2->CR2 |= UART2_CR2_TIEN;
-}
-
-/**
- * @brief UART2 initialization.
- *
- * @param[in] config architecture-dependent serial driver configuration
- */
-static void uart2_init(const SerialConfig *config) {
-
- UART2->BRR2 = (uint8_t)(((uint8_t)(config->sc_brr >> 8) & (uint8_t)0xF0) |
- ((uint8_t)config->sc_brr & (uint8_t)0x0F));
- UART2->BRR1 = (uint8_t)(config->sc_brr >> 4);
- UART2->CR1 = (uint8_t)(config->sc_mode &
- SD_MODE_PARITY); /* PIEN included. */
- UART2->CR2 = UART2_CR2_RIEN | UART2_CR2_TEN | UART2_CR2_REN;
- UART2->CR3 = (uint8_t)(config->sc_mode & SD_MODE_STOP);
- UART2->CR4 = 0;
- UART2->CR5 = 0;
- UART2->CR6 = 0;
- UART2->PSCR = 1;
- (void)UART2->SR;
- (void)UART2->DR;
-}
-
-/**
- * @brief UART1 de-initialization.
- */
-static void uart2_deinit(void) {
-
- UART2->CR1 = UART2_CR1_UARTD;
- UART2->CR2 = 0;
- UART2->CR3 = 0;
- UART2->CR4 = 0;
- UART2->CR5 = 0;
- UART2->CR6 = 0;
- UART2->PSCR = 0;
-}
-#endif /* STM8S_SERIAL_USE_UART1 */
-
-#if STM8S_SERIAL_USE_UART3 || defined(__DOXYGEN__)
-static void notify3(GenericQueue *qp) {
-
- (void)qp;
- UART3->CR2 |= UART3_CR2_TIEN;
-}
-
-/**
- * @brief UART3 initialization.
- *
- * @param[in] config architecture-dependent serial driver configuration
- */
-static void uart3_init(const SerialConfig *config) {
-
- UART3->BRR2 = (uint8_t)(((uint8_t)(config->sc_brr >> 8) & (uint8_t)0xF0) |
- ((uint8_t)config->sc_brr & (uint8_t)0x0F));
- UART3->BRR1 = (uint8_t)(config->sc_brr >> 4);
- UART3->CR1 = (uint8_t)(config->sc_mode &
- SD_MODE_PARITY); /* PIEN included. */
- UART3->CR2 = UART3_CR2_RIEN | UART3_CR2_TEN | UART3_CR2_REN;
- UART3->CR3 = (uint8_t)(config->sc_mode & SD_MODE_STOP);
- UART3->CR4 = 0;
- UART3->CR6 = 0;
- (void)UART3->SR;
- (void)UART3->DR;
-}
-
-/**
- * @brief UART3 de-initialization.
- */
-static void uart3_deinit(void) {
-
- UART3->CR1 = UART3_CR1_UARTD;
- UART3->CR2 = 0;
- UART3->CR3 = 0;
- UART3->CR4 = 0;
- UART3->CR6 = 0;
-}
-#endif /* STM8S_SERIAL_USE_UART3 */
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-#if STM8S_SERIAL_USE_UART1 || defined(__DOXYGEN__)
-/**
- * @brief IRQ 17 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(17) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD1);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- UART1->CR2 &= (uint8_t)~UART1_CR2_TIEN;
- else
- UART1->DR = (uint8_t)b;
-
- CH_IRQ_EPILOGUE();
-}
-
-/**
- * @brief IRQ 18 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(18) {
- uint8_t sr = UART1->SR;
-
- CH_IRQ_PROLOGUE();
-
- if ((sr = UART1->SR) & (UART1_SR_OR | UART1_SR_NF |
- UART1_SR_FE | UART1_SR_PE))
- set_error(&SD1, sr);
- chSysLockFromIsr();
- sdIncomingDataI(&SD1, UART1->DR);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* STM8S_SERIAL_USE_UART1 */
-
-#if STM8S_SERIAL_USE_UART2 || defined(__DOXYGEN__)
-/**
- * @brief IRQ 20 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(20) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD2);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- UART2->CR2 &= (uint8_t)~UART2_CR2_TIEN;
- else
- UART2->DR = (uint8_t)b;
-
- CH_IRQ_EPILOGUE();
-}
-
-/**
- * @brief IRQ 21 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(21) {
- uint8_t sr = UART2->SR;
-
- CH_IRQ_PROLOGUE();
-
- if ((sr = UART2->SR) & (UART2_SR_OR | UART2_SR_NF |
- UART2_SR_FE | UART2_SR_PE))
- set_error(&SD2, sr);
- chSysLockFromIsr();
- sdIncomingDataI(&SD2, UART2->DR);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* STM8S_SERIAL_USE_UART2 */
-
-#if STM8S_SERIAL_USE_UART3 || defined(__DOXYGEN__)
-/**
- * @brief IRQ 20 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(20) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD3);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- UART3->CR2 &= (uint8_t)~UART3_CR2_TIEN;
- else
- UART3->DR = (uint8_t)b;
-
- CH_IRQ_EPILOGUE();
-}
-
-/**
- * @brief IRQ 21 service routine.
- *
- * @isr
- */
-CH_IRQ_HANDLER(21) {
- uint8_t sr = UART3->SR;
-
- CH_IRQ_PROLOGUE();
-
- if ((sr = UART3->SR) & (UART3_SR_OR | UART3_SR_NF |
- UART3_SR_FE | UART3_SR_PE))
- set_error(&SD3, sr);
- chSysLockFromIsr();
- sdIncomingDataI(&SD3, UART3->DR);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* STM8S_SERIAL_USE_UART3 */
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level serial driver initialization.
- *
- * @notapi
- */
-void sd_lld_init(void) {
-
-#if STM8S_SERIAL_USE_UART1
- sdObjectInit(&SD1, NULL, notify1);
- CLK->PCKENR1 |= CLK_PCKENR1_UART1; /* PCKEN12, clock source. */
- UART1->CR1 = UART1_CR1_UARTD; /* UARTD (low power). */
-#endif
-
-#if STM8S_SERIAL_USE_UART2
- sdObjectInit(&SD2, NULL, notify2);
- CLK->PCKENR1 |= CLK_PCKENR1_UART2; /* PCKEN13, clock source. */
- UART2->CR1 = UART2_CR1_UARTD; /* UARTD (low power). */
-#endif
-
-#if STM8S_SERIAL_USE_UART3
- sdObjectInit(&SD3, NULL, notify3);
- CLK->PCKENR1 |= CLK_PCKENR1_UART3; /* PCKEN13, clock source. */
- UART3->CR1 = UART3_CR1_UARTD; /* UARTD (low power). */
-#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 STM8S_SERIAL_USE_UART1
- if (&SD1 == sdp) {
- uart1_init(config);
- return;
- }
-#endif
-#if STM8S_SERIAL_USE_UART2
- if (&SD2 == sdp) {
- uart2_init(config);
- return;
- }
-#endif
-#if STM8S_SERIAL_USE_UART3
- if (&SD3 == sdp) {
- uart3_init(config);
- return;
- }
-#endif
-}
-
-/**
- * @brief Low level serial driver stop.
- * @details De-initializes the USART, stops the associated clock, resets the
- * interrupt vector.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- *
- * @notapi
- */
-void sd_lld_stop(SerialDriver *sdp) {
-
-#if STM8S_SERIAL_USE_UART1
- if (&SD1 == sdp) {
- uart1_deinit();
- return;
- }
-#endif
-#if STM8S_SERIAL_USE_UART2
- if (&SD2 == sdp) {
- uart2_deinit();
- return;
- }
-#endif
-#if STM8S_SERIAL_USE_UART3
- if (&SD3 == sdp) {
- uart3_deinit();
- return;
- }
-#endif
-}
-
-#endif /* HAL_USE_SERIAL */
-
-/** @} */
|