Hal Drivers for L4
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Diff: Src/stm32l4xx_hal_tsc.c
- Revision:
- 2:7aef7655b0a8
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- 1:271ce2251692
--- a/Src/stm32l4xx_hal_tsc.c Thu Nov 12 20:49:49 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,839 +0,0 @@ -/** - ****************************************************************************** - * @file stm32l4xx_hal_tsc.c - * @author MCD Application Team - * @version V1.1.0 - * @date 16-September-2015 - * @brief This file provides firmware functions to manage the following - * functionalities of the Touch Sensing Controller (TSC) peripheral: - * + Initialization and De-initialization - * + Channel IOs, Shield IOs and Sampling IOs configuration - * + Start and Stop an acquisition - * + Read acquisition result - * + Interrupts and flags management - * - @verbatim -================================================================================ - ##### TSC specific features ##### -================================================================================ - [..] - (#) Proven and robust surface charge transfer acquisition principle - - (#) Supports up to 3 capacitive sensing channels per group - - (#) Capacitive sensing channels can be acquired in parallel offering a very good - response time - - (#) Spread spectrum feature to improve system robustness in noisy environments - - (#) Full hardware management of the charge transfer acquisition sequence - - (#) Programmable charge transfer frequency - - (#) Programmable sampling capacitor I/O pin - - (#) Programmable channel I/O pin - - (#) Programmable max count value to avoid long acquisition when a channel is faulty - - (#) Dedicated end of acquisition and max count error flags with interrupt capability - - (#) One sampling capacitor for up to 3 capacitive sensing channels to reduce the system - components - - (#) Compatible with proximity, touchkey, linear and rotary touch sensor implementation - - - ##### How to use this driver ##### -================================================================================ - [..] - (#) Enable the TSC interface clock using __HAL_RCC_TSC_CLK_ENABLE() macro. - - (#) GPIO pins configuration - (++) Enable the clock for the TSC GPIOs using __HAL_RCC_GPIOx_CLK_ENABLE() macro. - (++) Configure the TSC pins used as sampling IOs in alternate function output Open-Drain mode, - and TSC pins used as channel/shield IOs in alternate function output Push-Pull mode - using HAL_GPIO_Init() function (see Table 1). - - (#) Interrupts configuration - (++) Configure the NVIC (if the interrupt model is used) using HAL_NVIC_SetPriority() - and HAL_NVIC_EnableIRQ() and function. - - (#) TSC configuration - (++) Configure all TSC parameters and used TSC IOs using HAL_TSC_Init() function. - - [..] Table 1. IOs for the STM32L4xx devices - (+) +--------------------------------+ - (+) | IOs | TSC functions | - (+) |--------------|-----------------| - (+) | PB12 (AF) | TSC_G1_IO1 | - (+) | PB13 (AF) | TSC_G1_IO2 | - (+) | PB14 (AF) | TSC_G1_IO3 | - (+) | PB15 (AF) | TSC_G1_IO4 | - (+) |--------------|-----------------| - (+) | PB4 (AF) | TSC_G2_IO1 | - (+) | PB5 (AF) | TSC_G2_IO2 | - (+) | PB6 (AF) | TSC_G2_IO3 | - (+) | PB7 (AF) | TSC_G2_IO4 | - (+) |--------------|-----------------| - (+) | PA15 (AF) | TSC_G3_IO1 | - (+) | PC10 (AF) | TSC_G3_IO2 | - (+) | PC11 (AF) | TSC_G3_IO3 | - (+) | PC12 (AF) | TSC_G3_IO4 | - (+) |--------------|-----------------| - (+) | PC6 (AF) | TSC_G4_IO1 | - (+) | PC7 (AF) | TSC_G4_IO2 | - (+) | PC8 (AF) | TSC_G4_IO3 | - (+) | PC9 (AF) | TSC_G4_IO4 | - (+) |--------------|-----------------| - (+) | PE10 (AF) | TSC_G5_IO1 | - (+) | PE11 (AF) | TSC_G5_IO2 | - (+) | PE12 (AF) | TSC_G5_IO3 | - (+) | PE13 (AF) | TSC_G5_IO4 | - (+) |--------------|-----------------| - (+) | PD10 (AF) | TSC_G6_IO1 | - (+) | PD11 (AF) | TSC_G6_IO2 | - (+) | PD12 (AF) | TSC_G6_IO3 | - (+) | PD13 (AF) | TSC_G6_IO4 | - (+) |--------------|-----------------| - (+) | PE2 (AF) | TSC_G7_IO1 | - (+) | PE3 (AF) | TSC_G7_IO2 | - (+) | PE4 (AF) | TSC_G7_IO3 | - (+) | PE5 (AF) | TSC_G7_IO4 | - (+) |--------------|-----------------| - (+) | PF14 (AF) | TSC_G8_IO1 | - (+) | PF15 (AF) | TSC_G8_IO2 | - (+) | PG0 (AF) | TSC_G8_IO3 | - (+) | PG1 (AF) | TSC_G8_IO4 | - (+) |--------------|-----------------| - (+) | PB10 (AF) | TSC_SYNC | - (+) | PD2 (AF) | | - (+) +--------------------------------+ - [..] TSC peripheral alternate functions are mapped on AF9. - - *** Acquisition sequence *** - =================================== - [..] - (+) Discharge all IOs using HAL_TSC_IODischarge() function. - (+) Wait a certain time allowing a good discharge of all capacitors. This delay depends - of the sampling capacitor and electrodes design. - (+) Select the channel IOs to be acquired using HAL_TSC_IOConfig() function. - (+) Launch the acquisition using either HAL_TSC_Start() or HAL_TSC_Start_IT() function. - If the synchronized mode is selected, the acquisition will start as soon as the signal - is received on the synchro pin. - (+) Wait the end of acquisition using either HAL_TSC_PollForAcquisition() or - HAL_TSC_GetState() function or using WFI instruction for example. - (+) Check the group acquisition status using HAL_TSC_GroupGetStatus() function. - (+) Read the acquisition value using HAL_TSC_GroupGetValue() function. - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32l4xx_hal.h" - -/** @addtogroup STM32L4xx_HAL_Driver - * @{ - */ - -/** @defgroup TSC TSC - * @brief HAL TSC module driver - * @{ - */ - -#ifdef HAL_TSC_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -static uint32_t TSC_extract_groups(uint32_t iomask); - -/* Exported functions --------------------------------------------------------*/ - -/** @defgroup TSC_Exported_Functions Exported Functions - * @{ - */ - -/** @defgroup TSC_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * -@verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] This section provides functions allowing to: - (+) Initialize and configure the TSC. - (+) De-initialize the TSC. -@endverbatim - * @{ - */ - -/** - * @brief Initialize the TSC peripheral according to the specified parameters - * in the TSC_InitTypeDef structure and initialize the associated handle. - * @param htsc: TSC handle - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_Init(TSC_HandleTypeDef* htsc) -{ - /* Check TSC handle allocation */ - if (htsc == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - assert_param(IS_TSC_CTPH(htsc->Init.CTPulseHighLength)); - assert_param(IS_TSC_CTPL(htsc->Init.CTPulseLowLength)); - assert_param(IS_TSC_SS(htsc->Init.SpreadSpectrum)); - assert_param(IS_TSC_SSD(htsc->Init.SpreadSpectrumDeviation)); - assert_param(IS_TSC_SS_PRESC(htsc->Init.SpreadSpectrumPrescaler)); - assert_param(IS_TSC_PG_PRESC(htsc->Init.PulseGeneratorPrescaler)); - assert_param(IS_TSC_MCV(htsc->Init.MaxCountValue)); - assert_param(IS_TSC_IODEF(htsc->Init.IODefaultMode)); - assert_param(IS_TSC_SYNC_POL(htsc->Init.SynchroPinPolarity)); - assert_param(IS_TSC_ACQ_MODE(htsc->Init.AcquisitionMode)); - assert_param(IS_TSC_MCE_IT(htsc->Init.MaxCountInterrupt)); - - if(htsc->State == HAL_TSC_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - htsc->Lock = HAL_UNLOCKED; - } - - /* Initialize the TSC state */ - htsc->State = HAL_TSC_STATE_BUSY; - - /* Init the low level hardware : GPIO, CLOCK, CORTEX */ - HAL_TSC_MspInit(htsc); - - /*--------------------------------------------------------------------------*/ - /* Set TSC parameters */ - - /* Enable TSC */ - htsc->Instance->CR = TSC_CR_TSCE; - - /* Set all functions */ - htsc->Instance->CR |= (htsc->Init.CTPulseHighLength | - htsc->Init.CTPulseLowLength | - (uint32_t)(htsc->Init.SpreadSpectrumDeviation << 17) | - htsc->Init.SpreadSpectrumPrescaler | - htsc->Init.PulseGeneratorPrescaler | - htsc->Init.MaxCountValue | - htsc->Init.IODefaultMode | - htsc->Init.SynchroPinPolarity | - htsc->Init.AcquisitionMode); - - /* Spread spectrum */ - if (htsc->Init.SpreadSpectrum == ENABLE) - { - htsc->Instance->CR |= TSC_CR_SSE; - } - - /* Disable Schmitt trigger hysteresis on all used TSC IOs */ - htsc->Instance->IOHCR = (uint32_t)(~(htsc->Init.ChannelIOs | htsc->Init.ShieldIOs | htsc->Init.SamplingIOs)); - - /* Set channel and shield IOs */ - htsc->Instance->IOCCR = (htsc->Init.ChannelIOs | htsc->Init.ShieldIOs); - - /* Set sampling IOs */ - htsc->Instance->IOSCR = htsc->Init.SamplingIOs; - - /* Set the groups to be acquired */ - htsc->Instance->IOGCSR = TSC_extract_groups(htsc->Init.ChannelIOs); - - /* Disable interrupts */ - htsc->Instance->IER &= (uint32_t)(~(TSC_IT_EOA | TSC_IT_MCE)); - - /* Clear flags */ - htsc->Instance->ICR = (TSC_FLAG_EOA | TSC_FLAG_MCE); - - /*--------------------------------------------------------------------------*/ - - /* Initialize the TSC state */ - htsc->State = HAL_TSC_STATE_READY; - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Deinitialize the TSC peripheral registers to their default reset values. - * @param htsc: TSC handle - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_DeInit(TSC_HandleTypeDef* htsc) -{ - /* Check TSC handle allocation */ - if (htsc == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_BUSY; - - /* DeInit the low level hardware */ - HAL_TSC_MspDeInit(htsc); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_RESET; - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initialize the TSC MSP. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval None - */ -__weak void HAL_TSC_MspInit(TSC_HandleTypeDef* htsc) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_TSC_MspInit could be implemented in the user file. - */ -} - -/** - * @brief DeInitialize the TSC MSP. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval None - */ -__weak void HAL_TSC_MspDeInit(TSC_HandleTypeDef* htsc) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_TSC_MspDeInit could be implemented in the user file. - */ -} - -/** - * @} - */ - -/** @defgroup TSC_Exported_Functions_Group2 Input and Output operation functions - * @brief Input and Output operation functions - * -@verbatim - =============================================================================== - ##### IO Operation functions ##### - =============================================================================== - [..] This section provides functions allowing to: - (+) Start acquisition in polling mode. - (+) Start acquisition in interrupt mode. - (+) Stop conversion in polling mode. - (+) Stop conversion in interrupt mode. - (+) Poll for acquisition completed. - (+) Get group acquisition status. - (+) Get group acquisition value. -@endverbatim - * @{ - */ - -/** - * @brief Start the acquisition. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_Start(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_BUSY; - - /* Clear interrupts */ - __HAL_TSC_DISABLE_IT(htsc, (TSC_IT_EOA | TSC_IT_MCE)); - - /* Clear flags */ - __HAL_TSC_CLEAR_FLAG(htsc, (TSC_FLAG_EOA | TSC_FLAG_MCE)); - - /* Stop discharging the IOs */ - __HAL_TSC_SET_IODEF_INFLOAT(htsc); - - /* Launch the acquisition */ - __HAL_TSC_START_ACQ(htsc); - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Start the acquisition in interrupt mode. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL status. - */ -HAL_StatusTypeDef HAL_TSC_Start_IT(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - assert_param(IS_TSC_MCE_IT(htsc->Init.MaxCountInterrupt)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_BUSY; - - /* Enable end of acquisition interrupt */ - __HAL_TSC_ENABLE_IT(htsc, TSC_IT_EOA); - - /* Enable max count error interrupt (optional) */ - if (htsc->Init.MaxCountInterrupt == ENABLE) - { - __HAL_TSC_ENABLE_IT(htsc, TSC_IT_MCE); - } - else - { - __HAL_TSC_DISABLE_IT(htsc, TSC_IT_MCE); - } - - /* Clear flags */ - __HAL_TSC_CLEAR_FLAG(htsc, (TSC_FLAG_EOA | TSC_FLAG_MCE)); - - /* Stop discharging the IOs */ - __HAL_TSC_SET_IODEF_INFLOAT(htsc); - - /* Launch the acquisition */ - __HAL_TSC_START_ACQ(htsc); - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Stop the acquisition previously launched in polling mode. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_Stop(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Stop the acquisition */ - __HAL_TSC_STOP_ACQ(htsc); - - /* Clear flags */ - __HAL_TSC_CLEAR_FLAG(htsc, (TSC_FLAG_EOA | TSC_FLAG_MCE)); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_READY; - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Stop the acquisition previously launched in interrupt mode. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_Stop_IT(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Stop the acquisition */ - __HAL_TSC_STOP_ACQ(htsc); - - /* Disable interrupts */ - __HAL_TSC_DISABLE_IT(htsc, (TSC_IT_EOA | TSC_IT_MCE)); - - /* Clear flags */ - __HAL_TSC_CLEAR_FLAG(htsc, (TSC_FLAG_EOA | TSC_FLAG_MCE)); - - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_READY; - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Start acquisition and wait until completion. - * @note There is no need of a timeout parameter as the max count error is already - * managed by the TSC peripheral. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL state - */ -HAL_StatusTypeDef HAL_TSC_PollForAcquisition(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Check end of acquisition */ - while (HAL_TSC_GetState(htsc) == HAL_TSC_STATE_BUSY) - { - /* The timeout (max count error) is managed by the TSC peripheral itself. */ - } - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - return HAL_OK; -} - -/** - * @brief Get the acquisition status for a group. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @param gx_index: Index of the group - * @retval Group status - */ -TSC_GroupStatusTypeDef HAL_TSC_GroupGetStatus(TSC_HandleTypeDef* htsc, uint32_t gx_index) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - assert_param(IS_TSC_GROUP_INDEX(gx_index)); - - /* Return the group status */ - return(__HAL_TSC_GET_GROUP_STATUS(htsc, gx_index)); -} - -/** - * @brief Get the acquisition measure for a group. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @param gx_index: Index of the group - * @retval Acquisition measure - */ -uint32_t HAL_TSC_GroupGetValue(TSC_HandleTypeDef* htsc, uint32_t gx_index) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - assert_param(IS_TSC_GROUP_INDEX(gx_index)); - - /* Return the group acquisition counter */ - return htsc->Instance->IOGXCR[gx_index]; -} - -/** - * @} - */ - -/** @defgroup TSC_Exported_Functions_Group3 Peripheral Control functions - * @brief Peripheral Control functions - * -@verbatim - =============================================================================== - ##### Peripheral Control functions ##### - =============================================================================== - [..] This section provides functions allowing to: - (+) Configure TSC IOs - (+) Discharge TSC IOs -@endverbatim - * @{ - */ - -/** - * @brief Configure TSC IOs. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @param config: pointer to the configuration structure. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_IOConfig(TSC_HandleTypeDef* htsc, TSC_IOConfigTypeDef* config) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - /* Stop acquisition */ - __HAL_TSC_STOP_ACQ(htsc); - - /* Disable Schmitt trigger hysteresis on all used TSC IOs */ - htsc->Instance->IOHCR = (uint32_t)(~(config->ChannelIOs | config->ShieldIOs | config->SamplingIOs)); - - /* Set channel and shield IOs */ - htsc->Instance->IOCCR = (config->ChannelIOs | config->ShieldIOs); - - /* Set sampling IOs */ - htsc->Instance->IOSCR = config->SamplingIOs; - - /* Set groups to be acquired */ - htsc->Instance->IOGCSR = TSC_extract_groups(config->ChannelIOs); - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Discharge TSC IOs. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @param choice: enable or disable - * @retval HAL status - */ -HAL_StatusTypeDef HAL_TSC_IODischarge(TSC_HandleTypeDef* htsc, uint32_t choice) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Process locked */ - __HAL_LOCK(htsc); - - if (choice == ENABLE) - { - __HAL_TSC_SET_IODEF_OUTPPLOW(htsc); - } - else - { - __HAL_TSC_SET_IODEF_INFLOAT(htsc); - } - - /* Process unlocked */ - __HAL_UNLOCK(htsc); - - /* Return the group acquisition counter */ - return HAL_OK; -} - -/** - * @} - */ - -/** @defgroup TSC_Exported_Functions_Group4 Peripheral State and Errors functions - * @brief Peripheral State and Errors functions - * -@verbatim - =============================================================================== - ##### State and Errors functions ##### - =============================================================================== - [..] - This subsection provides functions allowing to - (+) Get TSC state. - -@endverbatim - * @{ - */ - -/** - * @brief Return the TSC handle state. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval HAL state - */ -HAL_TSC_StateTypeDef HAL_TSC_GetState(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - if (htsc->State == HAL_TSC_STATE_BUSY) - { - /* Check end of acquisition flag */ - if (__HAL_TSC_GET_FLAG(htsc, TSC_FLAG_EOA) != RESET) - { - /* Check max count error flag */ - if (__HAL_TSC_GET_FLAG(htsc, TSC_FLAG_MCE) != RESET) - { - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_ERROR; - } - else - { - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_READY; - } - } - } - - /* Return TSC state */ - return htsc->State; -} - -/** - * @} - */ - -/** @defgroup TSC_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks - * @{ - */ - -/** - * @brief Handle TSC interrupt request. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval None - */ -void HAL_TSC_IRQHandler(TSC_HandleTypeDef* htsc) -{ - /* Check the parameters */ - assert_param(IS_TSC_ALL_INSTANCE(htsc->Instance)); - - /* Check if the end of acquisition occurred */ - if (__HAL_TSC_GET_FLAG(htsc, TSC_FLAG_EOA) != RESET) - { - /* Clear EOA flag */ - __HAL_TSC_CLEAR_FLAG(htsc, TSC_FLAG_EOA); - } - - /* Check if max count error occurred */ - if (__HAL_TSC_GET_FLAG(htsc, TSC_FLAG_MCE) != RESET) - { - /* Clear MCE flag */ - __HAL_TSC_CLEAR_FLAG(htsc, TSC_FLAG_MCE); - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_ERROR; - /* Conversion completed callback */ - HAL_TSC_ErrorCallback(htsc); - } - else - { - /* Change TSC state */ - htsc->State = HAL_TSC_STATE_READY; - /* Conversion completed callback */ - HAL_TSC_ConvCpltCallback(htsc); - } -} - -/** - * @brief Acquisition completed callback in non-blocking mode. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval None - */ -__weak void HAL_TSC_ConvCpltCallback(TSC_HandleTypeDef* htsc) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_TSC_ConvCpltCallback could be implemented in the user file. - */ -} - -/** - * @brief Error callback in non-blocking mode. - * @param htsc: pointer to a TSC_HandleTypeDef structure that contains - * the configuration information for the specified TSC. - * @retval None - */ -__weak void HAL_TSC_ErrorCallback(TSC_HandleTypeDef* htsc) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_TSC_ErrorCallback could be implemented in the user file. - */ -} - -/** - * @} - */ - -/** - * @} - */ - -/* Private functions ---------------------------------------------------------*/ -/** @defgroup TSC_Private_Functions Private Functions - * @{ - */ - -/** - * @brief Utility function used to set the acquired groups mask. - * @param iomask: Channels IOs mask - * @retval Acquired groups mask - */ -static uint32_t TSC_extract_groups(uint32_t iomask) -{ - uint32_t groups = 0; - uint32_t idx; - - for (idx = 0; idx < TSC_NB_OF_GROUPS; idx++) - { - if ((iomask & ((uint32_t)0x0F << (idx * 4))) != RESET) - { - groups |= ((uint32_t)1 << idx); - } - } - - return groups; -} - -/** - * @} - */ - -#endif /* HAL_TSC_MODULE_ENABLED */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -