| /* |
| * Copyright (c) 2016, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * 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. |
| * |
| * * Neither the name of Texas Instruments Incorporated 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 OWNER 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. |
| */ |
| /* |
| * ======== ADCBuf.c ======== |
| */ |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <ti/drivers/ADCBuf.h> |
| #include <ti/drivers/dpl/HwiP.h> |
| |
| extern const ADCBuf_Config ADCBuf_config[]; |
| extern const uint_least8_t ADCBuf_count; |
| |
| /* Default ADC parameters structure */ |
| const ADCBuf_Params ADCBuf_defaultParams = { |
| .returnMode = ADCBuf_RETURN_MODE_BLOCKING, /*!< Blocking mode */ |
| .blockingTimeout = 25000, /*!< Timeout of 25000 RTOS ticks */ |
| .callbackFxn = NULL, /*!< No callback function */ |
| .recurrenceMode = ADCBuf_RECURRENCE_MODE_ONE_SHOT, /*!< One-shot measurement */ |
| .samplingFrequency = 10000, /*!< Take samples at 10kHz */ |
| .custom = NULL |
| }; |
| |
| static bool isInitialized = false; |
| |
| /* |
| * ======== ADCBuf_close ======== |
| */ |
| void ADCBuf_close(ADCBuf_Handle handle) |
| { |
| handle->fxnTablePtr->closeFxn(handle); |
| } |
| |
| /* |
| * ======== ADCBuf_control ======== |
| */ |
| int_fast16_t ADCBuf_control(ADCBuf_Handle handle, uint_fast16_t cmd, void *cmdArg) |
| { |
| return handle->fxnTablePtr->controlFxn(handle, cmd, cmdArg); |
| } |
| |
| /* |
| * ======== ADCBuf_init ======== |
| */ |
| void ADCBuf_init(void) |
| { |
| uint_least8_t i; |
| uint_fast32_t key; |
| |
| key = HwiP_disable(); |
| |
| if (!isInitialized) { |
| isInitialized = (bool) true; |
| |
| /* Call each driver's init function */ |
| for (i = 0; i < ADCBuf_count; i++) { |
| ADCBuf_config[i].fxnTablePtr->initFxn((ADCBuf_Handle) & (ADCBuf_config[i])); |
| } |
| } |
| |
| HwiP_restore(key); |
| } |
| |
| /* |
| * ======== ADCBuf_open ======== |
| */ |
| ADCBuf_Handle ADCBuf_open(uint_least8_t index, ADCBuf_Params *params) |
| { |
| ADCBuf_Handle handle = NULL; |
| |
| /* Verify driver index and state */ |
| if (isInitialized && (index < ADCBuf_count)) { |
| /* If params are NULL use defaults */ |
| if (params == NULL) { |
| params = (ADCBuf_Params *)&ADCBuf_defaultParams; |
| } |
| |
| /* Get handle for this driver instance */ |
| handle = (ADCBuf_Handle)&(ADCBuf_config[index]); |
| handle = handle->fxnTablePtr->openFxn(handle, params); |
| } |
| |
| return (handle); |
| } |
| |
| /* |
| * ======== ADCBuf_Params_init ======== |
| */ |
| void ADCBuf_Params_init(ADCBuf_Params *params) |
| { |
| *params = ADCBuf_defaultParams; |
| } |
| |
| /* |
| * ======== ADCBuf_convert ======== |
| */ |
| int_fast16_t ADCBuf_convert(ADCBuf_Handle handle, ADCBuf_Conversion conversions[], uint_fast8_t channelCount) |
| { |
| return (handle->fxnTablePtr->convertFxn(handle, conversions, channelCount)); |
| } |
| |
| /* |
| * ======== ADCBuf_convertCancel ======== |
| */ |
| int_fast16_t ADCBuf_convertCancel(ADCBuf_Handle handle) |
| { |
| return (handle->fxnTablePtr->convertCancelFxn(handle)); |
| } |
| |
| /* |
| * ======== ADCBuf_getResolution ======== |
| */ |
| uint_fast8_t ADCBuf_getResolution(ADCBuf_Handle handle) |
| { |
| return (handle->fxnTablePtr->getResolutionFxn(handle)); |
| } |
| |
| /* |
| * ======== ADCBuf_adjustRawValues ======== |
| */ |
| int_fast16_t ADCBuf_adjustRawValues(ADCBuf_Handle handle, void *sampleBuf, uint_fast16_t sampleCount, uint32_t adcChan) |
| { |
| return (handle->fxnTablePtr->adjustRawValuesFxn(handle, sampleBuf, sampleCount, adcChan)); |
| } |
| |
| /* |
| * ======== ADCBuf_convertAdjustedToMicroVolts ======== |
| */ |
| int_fast16_t ADCBuf_convertAdjustedToMicroVolts(ADCBuf_Handle handle, uint32_t adcChan, void *adjustedSampleBuffer, uint32_t outputMicroVoltBuffer[], uint_fast16_t sampleCount) |
| { |
| return (handle->fxnTablePtr->convertAdjustedToMicroVoltsFxn(handle, adcChan, adjustedSampleBuffer, outputMicroVoltBuffer, sampleCount)); |
| } |