Diff: mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K82F/drivers/fsl_tsi_v4.c

Revision:

0:8fdf9a60065b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K82F/drivers/fsl_tsi_v4.c	Wed Oct 10 00:33:53 2018 +0000
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2014 - 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o 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.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. 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.
+ */
+#include "fsl_tsi_v4.h"
+
+void TSI_Init(TSI_Type *base, const tsi_config_t *config)
+{
+    assert(config != NULL);
+
+    bool is_module_enabled = false;
+    bool is_int_enabled = false;
+
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    CLOCK_EnableClock(kCLOCK_Tsi0);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+    if (base->GENCS & TSI_GENCS_TSIEN_MASK)
+    {
+        is_module_enabled = true;
+        TSI_EnableModule(base, false);
+    }
+    if (base->GENCS & TSI_GENCS_TSIIEN_MASK)
+    {
+        is_int_enabled = true;
+        TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable);
+    }
+    
+    if(config->mode == kTSI_AnalogModeSel_Capacitive)
+    {
+      TSI_SetHighThreshold(base, config->thresh);
+      TSI_SetLowThreshold(base, config->thresl);
+      TSI_SetElectrodeOSCPrescaler(base, config->prescaler);
+      TSI_SetReferenceChargeCurrent(base, config->refchrg);
+      TSI_SetElectrodeChargeCurrent(base, config->extchrg);
+      TSI_SetNumberOfScans(base, config->nscn);
+      TSI_SetAnalogMode(base, config->mode);
+      TSI_SetOscVoltageRails(base, config->dvolt);   
+    }
+    else /* For noise modes */
+    {  
+      TSI_SetHighThreshold(base, config->thresh);
+      TSI_SetLowThreshold(base, config->thresl);
+      TSI_SetElectrodeOSCPrescaler(base, config->prescaler);
+      TSI_SetReferenceChargeCurrent(base, config->refchrg);
+      TSI_SetNumberOfScans(base, config->nscn);
+      TSI_SetAnalogMode(base, config->mode);
+      TSI_SetOscVoltageRails(base, config->dvolt);
+      TSI_SetElectrodeSeriesResistor(base, config->resistor);
+      TSI_SetFilterBits(base, config->filter);  
+    }
+     
+    if (is_module_enabled)
+    {
+        TSI_EnableModule(base, true);
+    }
+    if (is_int_enabled)
+    {
+        TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable);
+    }
+}
+
+void TSI_Deinit(TSI_Type *base)
+{
+    base->GENCS = 0U;
+    base->DATA = 0U;
+    base->TSHD = 0U;
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    CLOCK_DisableClock(kCLOCK_Tsi0);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+}
+
+void TSI_GetNormalModeDefaultConfig(tsi_config_t *userConfig)
+{
+    userConfig->thresh = 0U;
+    userConfig->thresl = 0U;
+    userConfig->prescaler = kTSI_ElecOscPrescaler_2div;
+    userConfig->extchrg = kTSI_ExtOscChargeCurrent_500nA;
+    userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA;
+    userConfig->nscn = kTSI_ConsecutiveScansNumber_5time;
+    userConfig->mode = kTSI_AnalogModeSel_Capacitive;
+    userConfig->dvolt = kTSI_OscVolRailsOption_0;
+}
+
+void TSI_GetLowPowerModeDefaultConfig(tsi_config_t *userConfig)
+{
+    userConfig->thresh = 400U;
+    userConfig->thresl = 0U;
+    userConfig->prescaler = kTSI_ElecOscPrescaler_2div;
+    userConfig->extchrg = kTSI_ExtOscChargeCurrent_500nA;
+    userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA;
+    userConfig->nscn = kTSI_ConsecutiveScansNumber_5time;
+    userConfig->mode = kTSI_AnalogModeSel_Capacitive;
+    userConfig->dvolt = kTSI_OscVolRailsOption_0;
+}
+
+void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff)
+{
+    assert(calBuff != NULL);
+
+    uint8_t i = 0U;
+    bool is_int_enabled = false;
+
+    if (base->GENCS & TSI_GENCS_TSIIEN_MASK)
+    {
+        is_int_enabled = true;
+        TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable);
+    }
+    for (i = 0U; i < FSL_FEATURE_TSI_CHANNEL_COUNT; i++)
+    {
+        TSI_SetMeasuredChannelNumber(base, i);
+        TSI_StartSoftwareTrigger(base);
+        while (!(TSI_GetStatusFlags(base) & kTSI_EndOfScanFlag))
+        {
+        }
+        calBuff->calibratedData[i] = TSI_GetCounter(base);
+        TSI_ClearStatusFlags(base, kTSI_EndOfScanFlag);
+    }
+    if (is_int_enabled)
+    {
+        TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable);
+    }
+}
+
+void TSI_EnableInterrupts(TSI_Type *base, uint32_t mask)
+{
+    uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK);
+
+    if (mask & kTSI_GlobalInterruptEnable)
+    {
+        regValue |= TSI_GENCS_TSIIEN_MASK;
+    }
+    if (mask & kTSI_OutOfRangeInterruptEnable)
+    {
+        regValue &= (~TSI_GENCS_ESOR_MASK);
+    }
+    if (mask & kTSI_EndOfScanInterruptEnable)
+    {
+        regValue |= TSI_GENCS_ESOR_MASK;
+    }
+
+    base->GENCS = regValue;     /* write value to register */
+}
+
+void TSI_DisableInterrupts(TSI_Type *base, uint32_t mask)
+{
+    uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK);
+
+    if (mask & kTSI_GlobalInterruptEnable)
+    {
+        regValue &= (~TSI_GENCS_TSIIEN_MASK);
+    }
+    if (mask & kTSI_OutOfRangeInterruptEnable)
+    {
+        regValue |= TSI_GENCS_ESOR_MASK;
+    }
+    if (mask & kTSI_EndOfScanInterruptEnable)
+    {
+        regValue &= (~TSI_GENCS_ESOR_MASK);
+    }
+
+    base->GENCS = regValue;     /* write value to register */
+}
+
+void TSI_ClearStatusFlags(TSI_Type *base, uint32_t mask)
+{
+    uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK);
+
+    if (mask & kTSI_EndOfScanFlag)
+    {
+        regValue |= TSI_GENCS_EOSF_MASK;
+    }
+    if (mask & kTSI_OutOfRangeFlag)
+    {
+        regValue |= TSI_GENCS_OUTRGF_MASK;
+    }
+
+    base->GENCS = regValue;     /* write value to register */
+}