/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ChibiOS/RT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** * @file uart.c * @brief UART Driver code. * * @addtogroup UART * @{ */ #include "ch.h" #include "hal.h" #if HAL_USE_UART || defined(__DOXYGEN__) /*===========================================================================*/ /* Driver exported variables. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver local variables. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver local functions. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver exported functions. */ /*===========================================================================*/ /** * @brief UART Driver initialization. * @note This function is implicitly invoked by @p halInit(), there is * no need to explicitly initialize the driver. * * @init */ void uartInit(void) { uart_lld_init(); } /** * @brief Initializes the standard part of a @p UARTDriver structure. * * @param[out] uartp pointer to the @p UARTDriver object * * @init */ void uartObjectInit(UARTDriver *uartp) { uartp->ud_state = UART_STOP; uartp->ud_txstate = UART_TX_IDLE; uartp->ud_rxstate = UART_RX_IDLE; uartp->ud_config = NULL; /* Optional, user-defined initializer.*/ #if defined(UART_DRIVER_EXT_INIT_HOOK) UART_DRIVER_EXT_INIT_HOOK(uartp); #endif } /** * @brief Configures and activates the UART peripheral. * * @param[in] uartp pointer to the @p UARTDriver object * @param[in] config pointer to the @p UARTConfig object * * @api */ void uartStart(UARTDriver *uartp, const UARTConfig *config) { chDbgCheck((uartp != NULL) && (config != NULL), "uartStart"); chSysLock(); chDbgAssert((uartp->ud_state == UART_STOP) || (uartp->ud_state == UART_READY), "uartStart(), #1", "invalid state"); uartp->ud_config = config; uart_lld_start(uartp); uartp->ud_state = UART_READY; chSysUnlock(); } /** * @brief Deactivates the UART peripheral. * * @param[in] uartp pointer to the @p UARTDriver object * * @api */ void uartStop(UARTDriver *uartp) { chDbgCheck(uartp != NULL, "uartStop"); chSysLock(); chDbgAssert((uartp->ud_state == UART_STOP) || (uartp->ud_state == UART_READY), "uartStop(), #1", "invalid state"); uart_lld_stop(uartp); uartp->ud_state = UART_STOP; uartp->ud_txstate = UART_TX_IDLE; uartp->ud_rxstate = UART_RX_IDLE; chSysUnlock(); } /** * @brief Starts a transmission on the UART peripheral. * @note The buffers are organized as uint8_t arrays for data sizes below * or equal to 8 bits else it is organized as uint16_t arrays. * * @param[in] uartp pointer to the @p UARTDriver object * @param[in] n number of data frames to send * @param[in] txbuf the pointer to the transmit buffer * * @api */ void uartStartSend(UARTDriver *uartp, size_t n, const void *txbuf) { chDbgCheck((uartp != NULL) && (n > 0) && (txbuf != NULL), "uartStartSend"); chSysLock(); chDbgAssert((uartp->ud_state == UART_READY) && (uartp->ud_txstate == UART_TX_IDLE), "uartStartSend(), #1", "not active"); uart_lld_start_send(uartp, n, txbuf); uartp->ud_txstate = UART_TX_ACTIVE; chSysUnlock(); } /** * @brief Starts a transmission on the UART peripheral. * @note The buffers are organized as uint8_t arrays for data sizes below * or equal to 8 bits else it is organized as uint16_t arrays. * @note This function has to be invoked from a lock zone. * * @param[in] uartp pointer to the @p UARTDriver object * @param[in] n number of data frames to send * @param[in] txbuf the pointer to the transmit buffer * * @iclass */ void uartStartSendI(UARTDriver *uartp, size_t n, const void *txbuf) { chDbgCheck((uartp != NULL) && (n > 0) && (txbuf != NULL), "uartStartSendI"); chDbgAssert((uartp->ud_state == UART_READY) && (uartp->ud_txstate != UART_TX_ACTIVE), "uartStartSendI(), #1", "not active"); uart_lld_start_send(uartp, n, txbuf); uartp->ud_txstate = UART_TX_ACTIVE; } /** * @brief Stops any ongoing transmission. * @note Stopping a transmission also suppresses the transmission callbacks. * * @param[in] uartp pointer to the @p UARTDriver object * * @return The number of data frames not transmitted by the * stopped transmit operation. * @retval 0 There was no transmit operation in progress. * * @api */ size_t uartStopSend(UARTDriver *uartp) { size_t n; chDbgCheck(uartp != NULL, "uartStopSend"); chSysLock(); chDbgAssert(uartp->ud_state == UART_READY, "uartStopSend(), #1", "not active"); if (uartp->ud_txstate == UART_TX_ACTIVE) { n = uart_lld_stop_send(uartp); uartp->ud_txstate = UART_TX_IDLE; } else n = 0; chSysUnlock(); return n; } /** * @brief Stops any ongoing transmission. * @note Stopping a transmission also suppresses the transmission callbacks. * @note This function has to be invoked from a lock zone. * * @param[in] uartp pointer to the @p UARTDriver object * * @return The number of data frames not transmitted by the * stopped transmit operation. * @retval 0 There was no transmit operation in progress. * * @iclass */ size_t uartStopSendI(UARTDriver *uartp) { chDbgCheck(uartp != NULL, "uartStopSendI"); chDbgAssert(uartp->ud_state == UART_READY, "uartStopSendI(), #1", "not active"); if (uartp->ud_txstate == UART_TX_ACTIVE) { size_t n = uart_lld_stop_send(uartp); uartp->ud_txstate = UART_TX_IDLE; return n; } return 0; } /** * @brief Starts a receive operation on the UART peripheral. * @note The buffers are organized as uint8_t arrays for data sizes below * or equal to 8 bits else it is organized as uint16_t arrays. * * @param[in] uartp pointer to the @p UARTDriver object * @param[in] n number of data frames to send * @param[in] rxbuf the pointer to the receive buffer * * @api */ void uartStartReceive(UARTDriver *uartp, size_t n, void *rxbuf) { chDbgCheck((uartp != NULL) && (n > 0) && (rxbuf != NULL), "uartStartReceive"); chSysLock(); chDbgAssert((uartp->ud_state == UART_READY) && (uartp->ud_rxstate == UART_RX_IDLE), "uartStartReceive(), #1", "not active"); uart_lld_start_receive(uartp, n, rxbuf); uartp->ud_rxstate = UART_RX_ACTIVE; chSysUnlock(); } /** * @brief Starts a receive operation on the UART peripheral. * @note The buffers are organized as uint8_t arrays for data sizes below * or equal to 8 bits else it is organized as uint16_t arrays. * @note This function has to be invoked from a lock zone. * * @param[in] uartp pointer to the @p UARTDriver object * @param[in] n number of data frames to send * @param[out] rxbuf the pointer to the receive buffer * * @iclass */ void uartStartReceiveI(UARTDriver *uartp, size_t n, void *rxbuf) { chDbgCheck((uartp != NULL) && (n > 0) && (rxbuf != NULL), "uartStartReceiveI"); chDbgAssert((uartp->ud_state == UART_READY) && (uartp->ud_rxstate == UART_RX_IDLE), "uartStartReceiveI(), #1", "not active"); uart_lld_start_receive(uartp, n, rxbuf); uartp->ud_rxstate = UART_RX_ACTIVE; } /** * @brief Stops any ongoing receive operation. * @note Stopping a receive operation also suppresses the receive callbacks. * * @param[in] uartp pointer to the @p UARTDriver object * * @return The number of data frames not received by the * stopped receive operation. * @retval 0 There was no receive operation in progress. * * @api */ size_t uartStopReceive(UARTDriver *uartp) { size_t n; chDbgCheck(uartp != NULL, "uartStopReceive"); chSysLock(); chDbgAssert(uartp->ud_state == UART_READY, "uartStopReceive(), #1", "not active"); if (uartp->ud_rxstate == UART_RX_ACTIVE) { n = uart_lld_stop_receive(uartp); uartp->ud_rxstate = UART_RX_IDLE; } else n = 0; chSysUnlock(); return n; } /** * @brief Stops any ongoing receive operation. * @note Stopping a receive operation also suppresses the receive callbacks. * @note This function has to be invoked from a lock zone. * * @param[in] uartp pointer to the @p UARTDriver object * * @return The number of data frames not re
/*
    ChibiOS - Copyright (C) 2006..2018 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.
*/

#ifndef MCUCONF_H
#define MCUCONF_H

/*
 * STM32L1xx drivers configuration.
 * The following settings override the default settings present in
 * the various device driver implementation headers.
 * Note that the settings for each driver only have effect if the whole
 * driver is enabled in halconf.h.
 *
 * IRQ priorities:
 * 15...0       Lowest...Highest.
 *
 * DMA priorities:
 * 0...3        Lowest...Highest.
 */

#define STM32L1xx_MCUCONF

/*
 * HAL driver system settings.
 */
#define STM32_NO_INIT                       FALSE
#define STM32_HSI_ENABLED                   TRUE
#define STM32_LSI_ENABLED                   TRUE
#define STM32_HSE_ENABLED                   FALSE
#define STM32_LSE_ENABLED                   TRUE
#define STM32_ADC_CLOCK_ENABLED             TRUE
#define STM32_USB_CLOCK_ENABLED             TRUE
#define STM32_MSIRANGE                      STM32_MSIRANGE_2M
#define STM32_SW                            STM32_SW_PLL
#define STM32_PLLSRC                        STM32_PLLSRC_HSI
#define STM32_PLLMUL_VALUE                  6
#define STM32_PLLDIV_VALUE                  3
#define STM32_HPRE                          STM32_HPRE_DIV1
#define STM32_PPRE1                         STM32_PPRE1_DIV1
#define STM32_PPRE2                         STM32_PPRE2_DIV1
#define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK
#define STM32_MCOPRE                        STM32_MCOPRE_DIV1
#define STM32_RTCSEL                        STM32_RTCSEL_LSE
#define STM32_RTCPRE                        STM32_RTCPRE_DIV2
#define STM32_VOS                           STM32_VOS_1P8
#define STM32_PVD_ENABLE                    FALSE
#define STM32_PLS                           STM32_PLS_LEV0

/*
 * IRQ system settings.
 */
#define STM32_IRQ_EXTI0_PRIORITY            6
#define STM32_IRQ_EXTI1_PRIORITY            6
#define STM32_IRQ_EXTI2_PRIORITY            6
#define STM32_IRQ_EXTI3_PRIORITY            6
#define STM32_IRQ_EXTI4_PRIORITY            6
#define STM32_IRQ_EXTI5_9_PRIORITY          6
#define STM32_IRQ_EXTI10_15_PRIORITY        6
#define STM32_IRQ_EXTI16_PRIORITY           6
#define STM32_IRQ_EXTI17_PRIORITY           6
#define STM32_IRQ_EXTI18_PRIORITY           6
#define STM32_IRQ_EXTI19_PRIORITY           6
#define STM32_IRQ_EXTI20_PRIORITY           6
#define STM32_IRQ_EXTI21_22_PRIORITY        6

/*
 * ADC driver system settings.
 */
#define STM32_ADC_USE_ADC1                  FALSE
#define STM32_ADC_ADC1_DMA_PRIORITY         2
#define STM32_ADC_IRQ_PRIORITY              6
#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY     6

/*
 * DAC driver system settings.
 */
#define STM32_DAC_DUAL_MODE                 FALSE
#define STM32_DAC_USE_DAC1_CH1              FALSE
#define STM32_DAC_USE_DAC1_CH2              FALSE
#define STM32_DAC_DAC1_CH1_IRQ_PRIORITY     10
#define STM32_DAC_DAC1_CH2_IRQ_PRIORITY     10
#define STM32_DAC_DAC1_CH1_DMA_PRIORITY     2
#define STM32_DAC_DAC1_CH2_DMA_PRIORITY     2

/*
 * GPT driver system settings.
 */
#define STM32_GPT_USE_TIM2                  FALSE
#define STM32_GPT_USE_TIM3                  FALSE
#define STM32_GPT_USE_TIM4                  FALSE
#define STM32_GPT_USE_TIM6                  FALSE
#define STM32_GPT_USE_TIM7                  FALSE
#define STM32_GPT_USE_TIM9                  FALSE
#define STM32_GPT_USE_TIM11                 FALSE
#define STM32_GPT_TIM2_IRQ_PRIORITY         7
#define STM32_GPT_TIM3_IRQ_PRIORITY         7
#define STM32_GPT_TIM4_IRQ_PRIORITY         7
#define STM32_GPT_TIM6_IRQ_PRIORITY         7
#define STM32_GPT_TIM7_IRQ_PRIORITY         7
#define STM32_GPT_TIM9_IRQ_PRIORITY         7
#define STM32_GPT_TIM11_IRQ_PRIORITY        7

/*
 * I2C driver system settings.
 */
#define STM32_I2C_USE_I2C1                  FALSE
#define STM32_I2C_USE_I2C2                  FALSE
#define STM32_I2C_BUSY_TIMEOUT              50
#define STM32_I2C_I2C1_IRQ_PRIORITY         5
#define STM32_I2C_I2C2_IRQ_PRIORITY         5
#define STM32_I2C_I2C1_DMA_PRIORITY         3
#define STM32_I2C_I2C2_DMA_PRIORITY         3
#define STM32_I2C_DMA_ERROR_HOOK(i2cp)      osalSysHalt("DMA failure")

/*
 * ICU driver system settings.
 */
#define STM32_ICU_USE_TIM2                  FALSE
#define STM32_ICU_USE_TIM3                  FALSE
#define STM32_ICU_USE_TIM4                  FALSE
#define STM32_ICU_USE_TIM9                  FALSE
#define STM32_ICU_TIM2_IRQ_PRIORITY         7
#define STM32_ICU_TIM3_IRQ_PRIORITY         7
#define STM32_ICU_TIM4_IRQ_PRIORITY         7
#define STM32_ICU_TIM9_IRQ_PRIORITY         7

/*
 * PWM driver system settings.
 */
#define STM32_PWM_USE_TIM2                  FALSE
#define STM32_PWM_USE_TIM3                  FALSE
#define STM32_PWM_USE_TIM4                  FALSE
#define STM32_PWM_USE_TIM9                  FALSE
#define STM32_PWM_TIM2_IRQ_PRIORITY         7
#define STM32_PWM_TIM3_IRQ_PRIORITY         7
#define STM32_PWM_TIM4_IRQ_PRIORITY         7
#define STM32_PWM_TIM9_IRQ_PRIORITY         7

/*
 * SERIAL driver system settings.
 */
#define STM32_SERIAL_USE_USART1             FALSE
#define STM32_SERIAL_USE_USART2             FALSE
#define STM32_SERIAL_USE_USART3             FALSE
#define STM32_SERIAL_USART1_PRIORITY        12
#define STM32_SERIAL_USART2_PRIORITY        12
#define STM32_SERIAL_USART3_PRIORITY        12

/*
 * SPI driver system settings.
 */
#define STM32_SPI_USE_SPI1                  FALSE
#define STM32_SPI_USE_SPI2                  FALSE
#define STM32_SPI_SPI1_DMA_PRIORITY         1
#define STM32_SPI_SPI2_DMA_PRIORITY         1
#define STM32_SPI_SPI1_IRQ_PRIORITY         10
#define STM32_SPI_SPI2_IRQ_PRIORITY         10
#define STM32_SPI_DMA_ERROR_HOOK(spip)      osalSysHalt("DMA failure")

/*
 * ST driver system settings.
 */
#define STM32_ST_IRQ_PRIORITY               8
#define STM32_ST_USE_TIMER                  2

/*
 * UART driver system settings.
 */
#define STM32_UART_USE_USART1               TRUE
#define STM32_UART_USE_USART2               TRUE
#define STM32_UART_USE_USART3               TRUE
#define STM32_UART_USART1_IRQ_PRIORITY      12
#define STM32_UART_USART2_IRQ_PRIORITY      12
#define STM32_UART_USART3_IRQ_PRIORITY      12
#define STM32_UART_USART1_DMA_PRIORITY      0
#define STM32_UART_USART2_DMA_PRIORITY      0
#define STM32_UART_USART3_DMA_PRIORITY      0
#define STM32_UART_DMA_ERROR_HOOK(uartp)    osalSysHalt("DMA failure")

/*
 * USB driver system settings.
 */
#define STM32_USB_USE_USB1                  FALSE
#define STM32_USB_LOW_POWER_ON_SUSPEND      FALSE
#define STM32_USB_USB1_HP_IRQ_PRIORITY      13
#define STM32_USB_USB1_LP_IRQ_PRIORITY      14

/*
 * WDG driver system settings.
 */
#define STM32_WDG_USE_IWDG                  FALSE

#endif /* MCUCONF_H */