From 6ab94e0b318884bbcb95e2ea3835f951502e1d99 Mon Sep 17 00:00:00 2001 From: jaseg Date: Wed, 14 Oct 2020 12:47:28 +0200 Subject: Move firmware into subdirectory --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c | 1078 ++++++++++++++++++++ 1 file changed, 1078 insertions(+) create mode 100644 fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c (limited to 'fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c') diff --git a/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c new file mode 100644 index 0000000..f4ee5cf --- /dev/null +++ b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tsc.c @@ -0,0 +1,1078 @@ +/** + ****************************************************************************** + * @file stm32f0xx_hal_tsc.c + * @author MCD Application Team + * @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. + + (#) 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. + + [..] 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. + + *** Callback registration *** + ============================================= + + [..] + The compilation flag USE_HAL_TSC_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + Use Functions @ref HAL_TSC_RegisterCallback() to register an interrupt callback. + + [..] + Function @ref HAL_TSC_RegisterCallback() allows to register following callbacks: + (+) ConvCpltCallback : callback for conversion complete process. + (+) ErrorCallback : callback for error detection. + (+) MspInitCallback : callback for Msp Init. + (+) MspDeInitCallback : callback for Msp DeInit. + [..] + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + [..] + Use function @ref HAL_TSC_UnRegisterCallback to reset a callback to the default + weak function. + @ref HAL_TSC_UnRegisterCallback takes as parameters the HAL peripheral handle, + and the Callback ID. + [..] + This function allows to reset following callbacks: + (+) ConvCpltCallback : callback for conversion complete process. + (+) ErrorCallback : callback for error detection. + (+) MspInitCallback : callback for Msp Init. + (+) MspDeInitCallback : callback for Msp DeInit. + + [..] + By default, after the @ref HAL_TSC_Init() and when the state is @ref HAL_TSC_STATE_RESET + all callbacks are set to the corresponding weak functions: + examples @ref HAL_TSC_ConvCpltCallback(), @ref HAL_TSC_ErrorCallback(). + Exception done for MspInit and MspDeInit functions that are + reset to the legacy weak functions in the @ref HAL_TSC_Init()/ @ref HAL_TSC_DeInit() only when + these callbacks are null (not registered beforehand). + If MspInit or MspDeInit are not null, the @ref HAL_TSC_Init()/ @ref HAL_TSC_DeInit() + keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state. + + [..] + Callbacks can be registered/unregistered in @ref HAL_TSC_STATE_READY state only. + Exception done MspInit/MspDeInit functions that can be registered/unregistered + in @ref HAL_TSC_STATE_READY or @ref HAL_TSC_STATE_RESET state, + thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit. + Then, the user first registers the MspInit/MspDeInit user callbacks + using @ref HAL_TSC_RegisterCallback() before calling @ref HAL_TSC_DeInit() + or @ref HAL_TSC_Init() function. + + [..] + When the compilation flag USE_HAL_TSC_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registration feature is not available and all callbacks + are set to the corresponding weak functions. + + @endverbatim + ****************************************************************************** + ****************************************************************************** + * @attention + * + *

© Copyright (c) 2016 STMicroelectronics. + * All rights reserved.

+ * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f0xx_hal.h" + +#if defined(TSC) +/** @addtogroup STM32F0xx_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 TSC 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)); + assert_param(IS_TSC_GROUP(htsc->Init.ChannelIOs)); + assert_param(IS_TSC_GROUP(htsc->Init.ShieldIOs)); + assert_param(IS_TSC_GROUP(htsc->Init.SamplingIOs)); + + if (htsc->State == HAL_TSC_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + htsc->Lock = HAL_UNLOCKED; + +#if (USE_HAL_TSC_REGISTER_CALLBACKS == 1) + /* Init the TSC Callback settings */ + htsc->ConvCpltCallback = HAL_TSC_ConvCpltCallback; /* Legacy weak ConvCpltCallback */ + htsc->ErrorCallback = HAL_TSC_ErrorCallback; /* Legacy weak ErrorCallback */ + + if (htsc->MspInitCallback == NULL) + { + htsc->MspInitCallback = HAL_TSC_MspInit; /* Legacy weak MspInit */ + } + + /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ + htsc->MspInitCallback(htsc); +#else + /* Init the low level hardware : GPIO, CLOCK, CORTEX */ + HAL_TSC_MspInit(htsc); +#endif /* USE_HAL_TSC_REGISTER_CALLBACKS */ + } + + /* Initialize the TSC state */ + htsc->State = HAL_TSC_STATE_BUSY; + + /*--------------------------------------------------------------------------*/ + /* Set TSC parameters */ + + /* Enable TSC */ + htsc->Instance->CR = TSC_CR_TSCE; + + /* Set all functions */ + htsc->Instance->CR |= (htsc->Init.CTPulseHighLength | + htsc->Init.CTPulseLowLength | + (htsc->Init.SpreadSpectrumDeviation << TSC_CR_SSD_Pos) | + htsc->Init.SpreadSpectrumPrescaler | + htsc->Init.PulseGeneratorPrescaler | + htsc->Init.MaxCountValue | + 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 = (~(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 &= (~(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; + +#if (USE_HAL_TSC_REGISTER_CALLBACKS == 1) + if (htsc->MspDeInitCallback == NULL) + { + htsc->MspDeInitCallback = HAL_TSC_MspDeInit; /* Legacy weak MspDeInit */ + } + + /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ + htsc->MspDeInitCallback(htsc); +#else + /* DeInit the low level hardware */ + HAL_TSC_MspDeInit(htsc); +#endif /* USE_HAL_TSC_REGISTER_CALLBACKS */ + + /* 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) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(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) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(htsc); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_TSC_MspDeInit could be implemented in the user file. + */ +} + +#if (USE_HAL_TSC_REGISTER_CALLBACKS == 1) +/** + * @brief Register a User TSC Callback + * To be used instead of the weak predefined callback + * @param htsc Pointer to a TSC_HandleTypeDef structure that contains + * the configuration information for the specified TSC. + * @param CallbackID ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_TSC_CONV_COMPLETE_CB_ID Conversion completed callback ID + * @arg @ref HAL_TSC_ERROR_CB_ID Error callback ID + * @arg @ref HAL_TSC_MSPINIT_CB_ID MspInit callback ID + * @arg @ref HAL_TSC_MSPDEINIT_CB_ID MspDeInit callback ID + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_TSC_RegisterCallback(TSC_HandleTypeDef *htsc, HAL_TSC_CallbackIDTypeDef CallbackID, pTSC_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + return HAL_ERROR; + } + /* Process locked */ + __HAL_LOCK(htsc); + + if (HAL_TSC_STATE_READY == htsc->State) + { + switch (CallbackID) + { + case HAL_TSC_CONV_COMPLETE_CB_ID : + htsc->ConvCpltCallback = pCallback; + break; + + case HAL_TSC_ERROR_CB_ID : + htsc->ErrorCallback = pCallback; + break; + + case HAL_TSC_MSPINIT_CB_ID : + htsc->MspInitCallback = pCallback; + break; + + case HAL_TSC_MSPDEINIT_CB_ID : + htsc->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_TSC_STATE_RESET == htsc->State) + { + switch (CallbackID) + { + case HAL_TSC_MSPINIT_CB_ID : + htsc->MspInitCallback = pCallback; + break; + + case HAL_TSC_MSPDEINIT_CB_ID : + htsc->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(htsc); + return status; +} + +/** + * @brief Unregister an TSC Callback + * TSC callback is redirected to the weak predefined callback + * @param htsc Pointer to a TSC_HandleTypeDef structure that contains + * the configuration information for the specified TSC. + * @param CallbackID ID of the callback to be unregistered + * This parameter can be one of the following values: + * This parameter can be one of the following values: + * @arg @ref HAL_TSC_CONV_COMPLETE_CB_ID Conversion completed callback ID + * @arg @ref HAL_TSC_ERROR_CB_ID Error callback ID + * @arg @ref HAL_TSC_MSPINIT_CB_ID MspInit callback ID + * @arg @ref HAL_TSC_MSPDEINIT_CB_ID MspDeInit callback ID + * @retval HAL status + */ +HAL_StatusTypeDef HAL_TSC_UnRegisterCallback(TSC_HandleTypeDef *htsc, HAL_TSC_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(htsc); + + if (HAL_TSC_STATE_READY == htsc->State) + { + switch (CallbackID) + { + case HAL_TSC_CONV_COMPLETE_CB_ID : + htsc->ConvCpltCallback = HAL_TSC_ConvCpltCallback; /* Legacy weak ConvCpltCallback */ + break; + + case HAL_TSC_ERROR_CB_ID : + htsc->ErrorCallback = HAL_TSC_ErrorCallback; /* Legacy weak ErrorCallback */ + break; + + case HAL_TSC_MSPINIT_CB_ID : + htsc->MspInitCallback = HAL_TSC_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_TSC_MSPDEINIT_CB_ID : + htsc->MspDeInitCallback = HAL_TSC_MspDeInit; /* Legacy weak MspDeInit */ + break; + + default : + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_TSC_STATE_RESET == htsc->State) + { + switch (CallbackID) + { + case HAL_TSC_MSPINIT_CB_ID : + htsc->MspInitCallback = HAL_TSC_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_TSC_MSPDEINIT_CB_ID : + htsc->MspDeInitCallback = HAL_TSC_MspDeInit; /* Legacy weak MspDeInit */ + break; + + default : + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + htsc->ErrorCode |= HAL_TSC_ERROR_INVALID_CALLBACK; + + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(htsc); + return status; +} + +#endif /* USE_HAL_TSC_REGISTER_CALLBACKS */ + +/** + * @} + */ + +/** @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)); + + /* Set touch sensing IOs not acquired to the specified IODefaultMode */ + if (htsc->Init.IODefaultMode == TSC_IODEF_OUT_PP_LOW) + { + __HAL_TSC_SET_IODEF_OUTPPLOW(htsc); + } + else + { + __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)); + + /* Set touch sensing IOs not acquired to the specified IODefaultMode */ + if (htsc->Init.IODefaultMode == TSC_IODEF_OUT_PP_LOW) + { + __HAL_TSC_SET_IODEF_OUTPPLOW(htsc); + } + else + { + __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); + + /* Set touch sensing IOs in low power mode (output push-pull) */ + __HAL_TSC_SET_IODEF_OUTPPLOW(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); + + /* Set touch sensing IOs in low power mode (output push-pull) */ + __HAL_TSC_SET_IODEF_OUTPPLOW(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)); + assert_param(IS_TSC_GROUP(config->ChannelIOs)); + assert_param(IS_TSC_GROUP(config->ShieldIOs)); + assert_param(IS_TSC_GROUP(config->SamplingIOs)); + + /* Process locked */ + __HAL_LOCK(htsc); + + /* Stop acquisition */ + __HAL_TSC_STOP_ACQ(htsc); + + /* Disable Schmitt trigger hysteresis on all used TSC IOs */ + htsc->Instance->IOHCR = (~(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 This parameter can be set to ENABLE or DISABLE. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_TSC_IODischarge(TSC_HandleTypeDef *htsc, FunctionalState 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; +#if (USE_HAL_TSC_REGISTER_CALLBACKS == 1) + htsc->ErrorCallback(htsc); +#else + /* Conversion completed callback */ + HAL_TSC_ErrorCallback(htsc); +#endif /* USE_HAL_TSC_REGISTER_CALLBACKS */ + } + else + { + /* Change TSC state */ + htsc->State = HAL_TSC_STATE_READY; +#if (USE_HAL_TSC_REGISTER_CALLBACKS == 1) + htsc->ConvCpltCallback(htsc); +#else + /* Conversion completed callback */ + HAL_TSC_ConvCpltCallback(htsc); +#endif /* USE_HAL_TSC_REGISTER_CALLBACKS */ + } +} + +/** + * @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) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(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) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(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 TSC 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 = 0UL; + uint32_t idx; + + for (idx = 0UL; idx < (uint32_t)TSC_NB_OF_GROUPS; idx++) + { + if ((iomask & (0x0FUL << (idx * 4UL))) != 0UL ) + { + groups |= (1UL << idx); + } + } + + return groups; +} + +/** + * @} + */ + +#endif /* HAL_TSC_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* TSC */ +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit