66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
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* Copyright (c) 2022, Texas Instruments Incorporated
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <ti/driverlib/dl_opa.h>
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#ifdef __MSPM0_HAS_OA__
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DL_OPA_GAIN DL_OPA_increaseGain(OA_Regs *opa)
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{
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DL_OPA_GAIN currentGain = DL_OPA_getGain(opa);
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/* if CFG.GAIN 0x5 do nothing */
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if (currentGain == DL_OPA_GAIN_N31_P32) {
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return DL_OPA_GAIN_N31_P32;
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} else {
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DL_OPA_setGain(opa,
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(uint32_t)(currentGain + (((uint32_t) 0x1) << OA_CFG_GAIN_OFS)));
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return DL_OPA_getGain(opa);
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}
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}
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DL_OPA_GAIN DL_OPA_decreaseGain(OA_Regs *opa)
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{
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DL_OPA_GAIN currentGain = DL_OPA_getGain(opa);
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/* if CFG.GAIN is 0x1 do nothing */
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if (currentGain == DL_OPA_GAIN_N1_P2) {
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return DL_OPA_GAIN_N1_P2;
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} else {
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DL_OPA_setGain(opa,
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(uint32_t)(currentGain - (((uint32_t) 0x1) << OA_CFG_GAIN_OFS)));
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return DL_OPA_getGain(opa);
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}
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}
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#endif /* __MSPM0_HAS_OA__ */
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