| /* |
| * Copyright (c) 2016, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include "fsl_tsc.h" |
| |
| /* Component ID definition, used by tools. */ |
| #ifndef FSL_COMPONENT_ID |
| #define FSL_COMPONENT_ID "platform.drivers.tsc" |
| #endif |
| |
| /******************************************************************************* |
| * Prototypes |
| ******************************************************************************/ |
| /*! |
| * @brief Get instance number for TSC module. |
| * |
| * @param base TSC peripheral base address |
| */ |
| static uint32_t TSC_GetInstance(TSC_Type *base); |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| /*! @brief Pointers to TSC bases for each instance. */ |
| static TSC_Type *const s_tscBases[] = TSC_BASE_PTRS; |
| |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| /*! @brief Pointers to ADC clocks for each instance. */ |
| static const clock_ip_name_t s_tscClocks[] = TSC_CLOCKS; |
| #endif |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| static uint32_t TSC_GetInstance(TSC_Type *base) |
| { |
| uint32_t instance; |
| |
| /* Find the instance index from base address mappings. */ |
| for (instance = 0; instance < ARRAY_SIZE(s_tscBases); instance++) |
| { |
| if (s_tscBases[instance] == base) |
| { |
| break; |
| } |
| } |
| |
| assert(instance < ARRAY_SIZE(s_tscBases)); |
| |
| return instance; |
| } |
| |
| /*! |
| * brief Initialize the TSC module. |
| * |
| * param base TSC peripheral base address. |
| * param config Pointer to "tsc_config_t" structure. |
| */ |
| void TSC_Init(TSC_Type *base, const tsc_config_t *config) |
| { |
| assert(NULL != config); |
| assert(config->measureDelayTime <= 0xFFFFFFU); |
| |
| uint32_t tmp32; |
| |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| /* Enable the TSC clock. */ |
| CLOCK_EnableClock(s_tscClocks[TSC_GetInstance(base)]); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| /* Configure TSC_BASIC_SETTING register. */ |
| tmp32 = TSC_BASIC_SETTING_MEASURE_DELAY_TIME(config->measureDelayTime) | |
| TSC_BASIC_SETTING__4_5_WIRE(config->detectionMode); |
| if (config->enableAutoMeasure) |
| { |
| tmp32 |= TSC_BASIC_SETTING_AUTO_MEASURE_MASK; |
| } |
| base->BASIC_SETTING = tmp32; |
| /* Configure TSC_PS_INPUT_BUFFER_ADDR register. */ |
| base->PRE_CHARGE_TIME = TSC_PRE_CHARGE_TIME_PRE_CHARGE_TIME(config->prechargeTime); |
| } |
| |
| /*! |
| * brief De-initializes the TSC module. |
| * |
| * param base TSC peripheral base address. |
| */ |
| void TSC_Deinit(TSC_Type *base) |
| { |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| /* Disable the TSC clcok. */ |
| CLOCK_DisableClock(s_tscClocks[TSC_GetInstance(base)]); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| } |
| |
| /*! |
| * brief Gets an available pre-defined settings for the controller's configuration. |
| * |
| * This function initializes the converter configuration structure with available settings. |
| * The default values of measureDelayTime and prechargeTime is tested on LCD8000-43T screen and work normally. |
| * The default values are: |
| * code |
| * config->enableAutoMeausre = false; |
| * config->measureDelayTime = 0xFFFFU; |
| * config->prechargeTime = 0xFFFFU; |
| * config->detectionMode = kTSC_4WireDetectionMode; |
| * endCode |
| * param config Pointer to "tsc_config_t" structure. |
| */ |
| void TSC_GetDefaultConfig(tsc_config_t *config) |
| { |
| /* Initializes the configure structure to zero. */ |
| memset(config, 0, sizeof(*config)); |
| |
| config->enableAutoMeasure = false; |
| config->measureDelayTime = 0xFFFFU; |
| config->prechargeTime = 0xFFFFU; |
| config->detectionMode = kTSC_Detection4WireMode; |
| } |
| |
| /*! |
| * brief Get Y coordinate value or X coordinate value. The value is an ADC conversion value. |
| * |
| * param base TSC peripheral base address. |
| * param selection Select alternative measure value which is Y coordinate value or X coordinate value. |
| * See "tsc_corrdinate_value_selection_t". |
| * return If selection is "kTSC_XCoordinateValueSelection", the API returns x-coordinate vlaue. |
| * If selection is "kTSC_YCoordinateValueSelection", the API returns y-coordinate vlaue. |
| */ |
| uint32_t TSC_GetMeasureValue(TSC_Type *base, tsc_corrdinate_value_selection_t selection) |
| { |
| uint32_t tmp32 = 0; |
| |
| if (selection == kTSC_XCoordinateValueSelection) |
| { |
| tmp32 = ((base->MEASEURE_VALUE) & TSC_MEASEURE_VALUE_X_VALUE_MASK) >> TSC_MEASEURE_VALUE_X_VALUE_SHIFT; |
| } |
| else if (selection == kTSC_YCoordinateValueSelection) |
| { |
| tmp32 = ((base->MEASEURE_VALUE) & TSC_MEASEURE_VALUE_Y_VALUE_MASK) >> TSC_MEASEURE_VALUE_Y_VALUE_SHIFT; |
| } |
| else |
| { |
| } |
| return tmp32; |
| } |
| |
| /*! |
| * brief Send hardware trigger signal to ADC in debug mode. The trigger signal must last at least 1 ips clock period. |
| * |
| * param base TSC peripheral base address. |
| * param hwts Hardware trigger select signal, select which channel to start conversion. See "tsc_trigger_signal_t". |
| * On ADC side, HWTS = 1 << x indicates the x logic channel is selected to start hardware ADC conversion. |
| * param enable Switcher of the trigger signal. "true" means generate trigger signal, "false" means don't generate |
| * trigger signal. |
| */ |
| void TSC_DebugTriggerSignalToADC(TSC_Type *base, tsc_trigger_signal_t hwts, bool enable) |
| { |
| if (enable) |
| { |
| /* TSC_DEBUG_MODE_EXT_HWTS field should be writed before writing TSC_DEBUG_MODE_TRIGGER field. |
| If the two fields are writed at the same time, the trigger couldn't work as expect. */ |
| base->DEBUG_MODE &= ~TSC_DEBUG_MODE_EXT_HWTS_MASK; |
| base->DEBUG_MODE |= TSC_DEBUG_MODE_EXT_HWTS(hwts); |
| base->DEBUG_MODE |= TSC_DEBUG_MODE_TRIGGER_MASK; |
| } |
| else |
| { |
| base->DEBUG_MODE &= ~TSC_DEBUG_MODE_TRIGGER_MASK; |
| } |
| } |
| |
| /*! |
| * brief Enable/Disable detection in debug mode. |
| * |
| * param base TSC peripheral base address. |
| * param detectionMode Set detect mode. See "tsc_detection_mode_t" |
| * param enable Switcher of detect enable. "true" means enable detection, "false" means disable detection. |
| */ |
| void TSC_DebugEnableDetection(TSC_Type *base, tsc_detection_mode_t detectionMode, bool enable) |
| { |
| if (detectionMode == kTSC_Detection4WireMode) |
| { |
| if (enable) |
| { |
| base->DEBUG_MODE2 |= TSC_DEBUG_MODE2_DETECT_ENABLE_FOUR_WIRE_MASK; |
| } |
| else |
| { |
| base->DEBUG_MODE2 &= ~TSC_DEBUG_MODE2_DETECT_ENABLE_FOUR_WIRE_MASK; |
| } |
| } |
| else if (detectionMode == kTSC_Detection5WireMode) |
| { |
| if (enable) |
| { |
| base->DEBUG_MODE2 |= TSC_DEBUG_MODE2_DETECT_ENABLE_FIVE_WIRE_MASK; |
| } |
| else |
| { |
| base->DEBUG_MODE2 &= ~TSC_DEBUG_MODE2_DETECT_ENABLE_FIVE_WIRE_MASK; |
| } |
| } |
| else |
| { |
| } |
| } |
| |
| /*! |
| * brief Set TSC port mode in debug mode.(pull down, pull up and 200k-pull up) |
| * |
| * param base TSC peripheral base address. |
| * param port TSC controller ports. |
| * param mode TSC port mode.(pull down, pull up and 200k-pull up) |
| */ |
| void TSC_DebugSetPortMode(TSC_Type *base, tsc_port_source_t port, tsc_port_mode_t mode) |
| { |
| uint32_t tmp32; |
| |
| tmp32 = base->DEBUG_MODE2; |
| switch (port) |
| { |
| case kTSC_WiperPortSource: |
| tmp32 &= ~(TSC_DEBUG_MODE2_WIPER_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_WIPER_PULL_UP_MASK | |
| TSC_DEBUG_MODE2_WIPER_PULL_DOWN_MASK); |
| tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_WIPER_PULL_DOWN_SHIFT); |
| break; |
| case kTSC_YnlrPortSource: |
| tmp32 &= ~(TSC_DEBUG_MODE2_YNLR_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_YNLR_PULL_UP_MASK | |
| TSC_DEBUG_MODE2_YNLR_PULL_DOWN_MASK); |
| tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_YNLR_PULL_DOWN_SHIFT); |
| break; |
| case kTSC_YpllPortSource: |
| tmp32 &= ~(TSC_DEBUG_MODE2_YPLL_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_YPLL_PULL_UP_MASK | |
| TSC_DEBUG_MODE2_YPLL_PULL_DOWN_MASK); |
| tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_YPLL_PULL_DOWN_SHIFT); |
| break; |
| case kTSC_XnurPortSource: |
| tmp32 &= ~(TSC_DEBUG_MODE2_XNUR_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_XNUR_PULL_UP_MASK | |
| TSC_DEBUG_MODE2_XNUR_PULL_DOWN_MASK); |
| tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_XNUR_PULL_DOWN_SHIFT); |
| break; |
| case kTSC_XpulPortSource: |
| tmp32 &= ~(TSC_DEBUG_MODE2_XPUL_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_XPUL_PULL_UP_MASK | |
| TSC_DEBUG_MODE2_XPUL_PULL_DOWN_MASK); |
| tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_XPUL_PULL_DOWN_SHIFT); |
| break; |
| default: |
| break; |
| } |
| base->DEBUG_MODE2 = tmp32; |
| } |