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targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KW41Z/drivers/fsl_dac.c@154:37f96f9d4de2, 2017-01-04 (annotated)

Committer:
<>
Date:
Wed Jan 04 16:58:05 2017 +0000
Revision:
154:37f96f9d4de2
This updates the lib to the mbed lib v133

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 154:37f96f9d4de2 1 /*
<> 154:37f96f9d4de2 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 154:37f96f9d4de2 3 * All rights reserved.
<> 154:37f96f9d4de2 4 *
<> 154:37f96f9d4de2 5 * Redistribution and use in source and binary forms, with or without modification,
<> 154:37f96f9d4de2 6 * are permitted provided that the following conditions are met:
<> 154:37f96f9d4de2 7 *
<> 154:37f96f9d4de2 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 154:37f96f9d4de2 9 * of conditions and the following disclaimer.
<> 154:37f96f9d4de2 10 *
<> 154:37f96f9d4de2 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 154:37f96f9d4de2 12 * list of conditions and the following disclaimer in the documentation and/or
<> 154:37f96f9d4de2 13 * other materials provided with the distribution.
<> 154:37f96f9d4de2 14 *
<> 154:37f96f9d4de2 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 154:37f96f9d4de2 16 * contributors may be used to endorse or promote products derived from this
<> 154:37f96f9d4de2 17 * software without specific prior written permission.
<> 154:37f96f9d4de2 18 *
<> 154:37f96f9d4de2 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 154:37f96f9d4de2 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 154:37f96f9d4de2 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 154:37f96f9d4de2 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 154:37f96f9d4de2 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 154:37f96f9d4de2 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 154:37f96f9d4de2 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 154:37f96f9d4de2 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 154:37f96f9d4de2 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 154:37f96f9d4de2 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 154:37f96f9d4de2 29 */
<> 154:37f96f9d4de2 30
<> 154:37f96f9d4de2 31 #include "fsl_dac.h"
<> 154:37f96f9d4de2 32
<> 154:37f96f9d4de2 33 /*******************************************************************************
<> 154:37f96f9d4de2 34 * Prototypes
<> 154:37f96f9d4de2 35 ******************************************************************************/
<> 154:37f96f9d4de2 36 /*!
<> 154:37f96f9d4de2 37 * @brief Get instance number for DAC module.
<> 154:37f96f9d4de2 38 *
<> 154:37f96f9d4de2 39 * @param base DAC peripheral base address
<> 154:37f96f9d4de2 40 */
<> 154:37f96f9d4de2 41 static uint32_t DAC_GetInstance(DAC_Type *base);
<> 154:37f96f9d4de2 42
<> 154:37f96f9d4de2 43 /*******************************************************************************
<> 154:37f96f9d4de2 44 * Variables
<> 154:37f96f9d4de2 45 ******************************************************************************/
<> 154:37f96f9d4de2 46 /*! @brief Pointers to DAC bases for each instance. */
<> 154:37f96f9d4de2 47 static DAC_Type *const s_dacBases[] = DAC_BASE_PTRS;
<> 154:37f96f9d4de2 48 /*! @brief Pointers to DAC clocks for each instance. */
<> 154:37f96f9d4de2 49 static const clock_ip_name_t s_dacClocks[] = DAC_CLOCKS;
<> 154:37f96f9d4de2 50
<> 154:37f96f9d4de2 51 /*******************************************************************************
<> 154:37f96f9d4de2 52 * Codes
<> 154:37f96f9d4de2 53 ******************************************************************************/
<> 154:37f96f9d4de2 54 static uint32_t DAC_GetInstance(DAC_Type *base)
<> 154:37f96f9d4de2 55 {
<> 154:37f96f9d4de2 56 uint32_t instance;
<> 154:37f96f9d4de2 57
<> 154:37f96f9d4de2 58 /* Find the instance index from base address mappings. */
<> 154:37f96f9d4de2 59 for (instance = 0; instance < FSL_FEATURE_SOC_DAC_COUNT; instance++)
<> 154:37f96f9d4de2 60 {
<> 154:37f96f9d4de2 61 if (s_dacBases[instance] == base)
<> 154:37f96f9d4de2 62 {
<> 154:37f96f9d4de2 63 break;
<> 154:37f96f9d4de2 64 }
<> 154:37f96f9d4de2 65 }
<> 154:37f96f9d4de2 66
<> 154:37f96f9d4de2 67 assert(instance < FSL_FEATURE_SOC_DAC_COUNT);
<> 154:37f96f9d4de2 68
<> 154:37f96f9d4de2 69 return instance;
<> 154:37f96f9d4de2 70 }
<> 154:37f96f9d4de2 71
<> 154:37f96f9d4de2 72 void DAC_Init(DAC_Type *base, const dac_config_t *config)
<> 154:37f96f9d4de2 73 {
<> 154:37f96f9d4de2 74 assert(NULL != config);
<> 154:37f96f9d4de2 75
<> 154:37f96f9d4de2 76 uint8_t tmp8;
<> 154:37f96f9d4de2 77
<> 154:37f96f9d4de2 78 /* Enable the clock. */
<> 154:37f96f9d4de2 79 CLOCK_EnableClock(s_dacClocks[DAC_GetInstance(base)]);
<> 154:37f96f9d4de2 80
<> 154:37f96f9d4de2 81 /* Configure. */
<> 154:37f96f9d4de2 82 /* DACx_C0. */
<> 154:37f96f9d4de2 83 tmp8 = base->C0 & ~(DAC_C0_DACRFS_MASK | DAC_C0_LPEN_MASK);
<> 154:37f96f9d4de2 84 if (kDAC_ReferenceVoltageSourceVref2 == config->referenceVoltageSource)
<> 154:37f96f9d4de2 85 {
<> 154:37f96f9d4de2 86 tmp8 |= DAC_C0_DACRFS_MASK;
<> 154:37f96f9d4de2 87 }
<> 154:37f96f9d4de2 88 if (config->enableLowPowerMode)
<> 154:37f96f9d4de2 89 {
<> 154:37f96f9d4de2 90 tmp8 |= DAC_C0_LPEN_MASK;
<> 154:37f96f9d4de2 91 }
<> 154:37f96f9d4de2 92 base->C0 = tmp8;
<> 154:37f96f9d4de2 93
<> 154:37f96f9d4de2 94 /* DAC_Enable(base, true); */
<> 154:37f96f9d4de2 95 /* Tip: The DAC output can be enabled till then after user sets their own available data in application. */
<> 154:37f96f9d4de2 96 }
<> 154:37f96f9d4de2 97
<> 154:37f96f9d4de2 98 void DAC_Deinit(DAC_Type *base)
<> 154:37f96f9d4de2 99 {
<> 154:37f96f9d4de2 100 DAC_Enable(base, false);
<> 154:37f96f9d4de2 101
<> 154:37f96f9d4de2 102 /* Disable the clock. */
<> 154:37f96f9d4de2 103 CLOCK_DisableClock(s_dacClocks[DAC_GetInstance(base)]);
<> 154:37f96f9d4de2 104 }
<> 154:37f96f9d4de2 105
<> 154:37f96f9d4de2 106 void DAC_GetDefaultConfig(dac_config_t *config)
<> 154:37f96f9d4de2 107 {
<> 154:37f96f9d4de2 108 assert(NULL != config);
<> 154:37f96f9d4de2 109
<> 154:37f96f9d4de2 110 config->referenceVoltageSource = kDAC_ReferenceVoltageSourceVref2;
<> 154:37f96f9d4de2 111 config->enableLowPowerMode = false;
<> 154:37f96f9d4de2 112 }
<> 154:37f96f9d4de2 113
<> 154:37f96f9d4de2 114 void DAC_SetBufferConfig(DAC_Type *base, const dac_buffer_config_t *config)
<> 154:37f96f9d4de2 115 {
<> 154:37f96f9d4de2 116 assert(NULL != config);
<> 154:37f96f9d4de2 117
<> 154:37f96f9d4de2 118 uint8_t tmp8;
<> 154:37f96f9d4de2 119
<> 154:37f96f9d4de2 120 /* DACx_C0. */
<> 154:37f96f9d4de2 121 tmp8 = base->C0 & ~(DAC_C0_DACTRGSEL_MASK);
<> 154:37f96f9d4de2 122 if (kDAC_BufferTriggerBySoftwareMode == config->triggerMode)
<> 154:37f96f9d4de2 123 {
<> 154:37f96f9d4de2 124 tmp8 |= DAC_C0_DACTRGSEL_MASK;
<> 154:37f96f9d4de2 125 }
<> 154:37f96f9d4de2 126 base->C0 = tmp8;
<> 154:37f96f9d4de2 127
<> 154:37f96f9d4de2 128 /* DACx_C1. */
<> 154:37f96f9d4de2 129 tmp8 = base->C1 &
<> 154:37f96f9d4de2 130 ~(
<> 154:37f96f9d4de2 131 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION
<> 154:37f96f9d4de2 132 DAC_C1_DACBFWM_MASK |
<> 154:37f96f9d4de2 133 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */
<> 154:37f96f9d4de2 134 DAC_C1_DACBFMD_MASK);
<> 154:37f96f9d4de2 135 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION
<> 154:37f96f9d4de2 136 tmp8 |= DAC_C1_DACBFWM(config->watermark);
<> 154:37f96f9d4de2 137 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */
<> 154:37f96f9d4de2 138 tmp8 |= DAC_C1_DACBFMD(config->workMode);
<> 154:37f96f9d4de2 139 base->C1 = tmp8;
<> 154:37f96f9d4de2 140
<> 154:37f96f9d4de2 141 /* DACx_C2. */
<> 154:37f96f9d4de2 142 tmp8 = base->C2 & ~DAC_C2_DACBFUP_MASK;
<> 154:37f96f9d4de2 143 tmp8 |= DAC_C2_DACBFUP(config->upperLimit);
<> 154:37f96f9d4de2 144 base->C2 = tmp8;
<> 154:37f96f9d4de2 145 }
<> 154:37f96f9d4de2 146
<> 154:37f96f9d4de2 147 void DAC_GetDefaultBufferConfig(dac_buffer_config_t *config)
<> 154:37f96f9d4de2 148 {
<> 154:37f96f9d4de2 149 assert(NULL != config);
<> 154:37f96f9d4de2 150
<> 154:37f96f9d4de2 151 config->triggerMode = kDAC_BufferTriggerBySoftwareMode;
<> 154:37f96f9d4de2 152 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION
<> 154:37f96f9d4de2 153 config->watermark = kDAC_BufferWatermark1Word;
<> 154:37f96f9d4de2 154 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */
<> 154:37f96f9d4de2 155 config->workMode = kDAC_BufferWorkAsNormalMode;
<> 154:37f96f9d4de2 156 config->upperLimit = DAC_DATL_COUNT - 1U;
<> 154:37f96f9d4de2 157 }
<> 154:37f96f9d4de2 158
<> 154:37f96f9d4de2 159 void DAC_SetBufferValue(DAC_Type *base, uint8_t index, uint16_t value)
<> 154:37f96f9d4de2 160 {
<> 154:37f96f9d4de2 161 assert(index < DAC_DATL_COUNT);
<> 154:37f96f9d4de2 162
<> 154:37f96f9d4de2 163 base->DAT[index].DATL = (uint8_t)(0xFFU & value); /* Low 8-bit. */
<> 154:37f96f9d4de2 164 base->DAT[index].DATH = (uint8_t)((0xF00U & value) >> 8); /* High 4-bit. */
<> 154:37f96f9d4de2 165 }
<> 154:37f96f9d4de2 166
<> 154:37f96f9d4de2 167 void DAC_SetBufferReadPointer(DAC_Type *base, uint8_t index)
<> 154:37f96f9d4de2 168 {
<> 154:37f96f9d4de2 169 assert(index < DAC_DATL_COUNT);
<> 154:37f96f9d4de2 170
<> 154:37f96f9d4de2 171 uint8_t tmp8 = base->C2 & ~DAC_C2_DACBFRP_MASK;
<> 154:37f96f9d4de2 172
<> 154:37f96f9d4de2 173 tmp8 |= DAC_C2_DACBFRP(index);
<> 154:37f96f9d4de2 174 base->C2 = tmp8;
<> 154:37f96f9d4de2 175 }
<> 154:37f96f9d4de2 176
<> 154:37f96f9d4de2 177 void DAC_EnableBufferInterrupts(DAC_Type *base, uint32_t mask)
<> 154:37f96f9d4de2 178 {
<> 154:37f96f9d4de2 179 mask &= (
<> 154:37f96f9d4de2 180 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION
<> 154:37f96f9d4de2 181 DAC_C0_DACBWIEN_MASK |
<> 154:37f96f9d4de2 182 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */
<> 154:37f96f9d4de2 183 DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK);
<> 154:37f96f9d4de2 184 base->C0 |= ((uint8_t)mask); /* Write 1 to enable. */
<> 154:37f96f9d4de2 185 }
<> 154:37f96f9d4de2 186
<> 154:37f96f9d4de2 187 void DAC_DisableBufferInterrupts(DAC_Type *base, uint32_t mask)
<> 154:37f96f9d4de2 188 {
<> 154:37f96f9d4de2 189 mask &= (
<> 154:37f96f9d4de2 190 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION
<> 154:37f96f9d4de2 191 DAC_C0_DACBWIEN_MASK |
<> 154:37f96f9d4de2 192 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */
<> 154:37f96f9d4de2 193 DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK);
<> 154:37f96f9d4de2 194 base->C0 &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to disable. */
<> 154:37f96f9d4de2 195 }
<> 154:37f96f9d4de2 196
<> 154:37f96f9d4de2 197 uint32_t DAC_GetBufferStatusFlags(DAC_Type *base)
<> 154:37f96f9d4de2 198 {
<> 154:37f96f9d4de2 199 return (uint32_t)(base->SR & (
<> 154:37f96f9d4de2 200 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION
<> 154:37f96f9d4de2 201 DAC_SR_DACBFWMF_MASK |
<> 154:37f96f9d4de2 202 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */
<> 154:37f96f9d4de2 203 DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK));
<> 154:37f96f9d4de2 204 }
<> 154:37f96f9d4de2 205
<> 154:37f96f9d4de2 206 void DAC_ClearBufferStatusFlags(DAC_Type *base, uint32_t mask)
<> 154:37f96f9d4de2 207 {
<> 154:37f96f9d4de2 208 mask &= (
<> 154:37f96f9d4de2 209 #if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION
<> 154:37f96f9d4de2 210 DAC_SR_DACBFWMF_MASK |
<> 154:37f96f9d4de2 211 #endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */
<> 154:37f96f9d4de2 212 DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK);
<> 154:37f96f9d4de2 213 base->SR &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to clear flags. */
<> 154:37f96f9d4de2 214 }