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targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K22F/drivers/fsl_pdb.c@121:7f86b4238bec, 2016-05-03 (annotated)

Committer:
mbed_official
Date:
Tue May 03 00:15:16 2016 +0100
Revision:
121:7f86b4238bec
Synchronized with git revision 9cef243de23875778f461bbe9a8c1bc47e65212b



Full URL: https://github.com/mbedmicro/mbed/commit/9cef243de23875778f461bbe9a8c1bc47e65212b/



Switch to KSDK 2.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 121:7f86b4238bec 1 /*
mbed_official 121:7f86b4238bec 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
mbed_official 121:7f86b4238bec 3 * All rights reserved.
mbed_official 121:7f86b4238bec 4 *
mbed_official 121:7f86b4238bec 5 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 121:7f86b4238bec 6 * are permitted provided that the following conditions are met:
mbed_official 121:7f86b4238bec 7 *
mbed_official 121:7f86b4238bec 8 * o Redistributions of source code must retain the above copyright notice, this list
mbed_official 121:7f86b4238bec 9 * of conditions and the following disclaimer.
mbed_official 121:7f86b4238bec 10 *
mbed_official 121:7f86b4238bec 11 * o Redistributions in binary form must reproduce the above copyright notice, this
mbed_official 121:7f86b4238bec 12 * list of conditions and the following disclaimer in the documentation and/or
mbed_official 121:7f86b4238bec 13 * other materials provided with the distribution.
mbed_official 121:7f86b4238bec 14 *
mbed_official 121:7f86b4238bec 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
mbed_official 121:7f86b4238bec 16 * contributors may be used to endorse or promote products derived from this
mbed_official 121:7f86b4238bec 17 * software without specific prior written permission.
mbed_official 121:7f86b4238bec 18 *
mbed_official 121:7f86b4238bec 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
mbed_official 121:7f86b4238bec 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
mbed_official 121:7f86b4238bec 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 121:7f86b4238bec 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
mbed_official 121:7f86b4238bec 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
mbed_official 121:7f86b4238bec 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mbed_official 121:7f86b4238bec 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
mbed_official 121:7f86b4238bec 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 121:7f86b4238bec 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mbed_official 121:7f86b4238bec 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 121:7f86b4238bec 29 */
mbed_official 121:7f86b4238bec 30
mbed_official 121:7f86b4238bec 31 #include "fsl_pdb.h"
mbed_official 121:7f86b4238bec 32
mbed_official 121:7f86b4238bec 33 /*******************************************************************************
mbed_official 121:7f86b4238bec 34 * Prototypes
mbed_official 121:7f86b4238bec 35 ******************************************************************************/
mbed_official 121:7f86b4238bec 36 /*!
mbed_official 121:7f86b4238bec 37 * @brief Get instance number for PDB module.
mbed_official 121:7f86b4238bec 38 *
mbed_official 121:7f86b4238bec 39 * @param base PDB peripheral base address
mbed_official 121:7f86b4238bec 40 */
mbed_official 121:7f86b4238bec 41 static uint32_t PDB_GetInstance(PDB_Type *base);
mbed_official 121:7f86b4238bec 42
mbed_official 121:7f86b4238bec 43 /*******************************************************************************
mbed_official 121:7f86b4238bec 44 * Variables
mbed_official 121:7f86b4238bec 45 ******************************************************************************/
mbed_official 121:7f86b4238bec 46 /*! @brief Pointers to PDB bases for each instance. */
mbed_official 121:7f86b4238bec 47 static PDB_Type *const s_pdbBases[] = PDB_BASE_PTRS;
mbed_official 121:7f86b4238bec 48 /*! @brief Pointers to PDB clocks for each instance. */
mbed_official 121:7f86b4238bec 49 const clock_ip_name_t s_pdbClocks[] = PDB_CLOCKS;
mbed_official 121:7f86b4238bec 50
mbed_official 121:7f86b4238bec 51 /*******************************************************************************
mbed_official 121:7f86b4238bec 52 * Codes
mbed_official 121:7f86b4238bec 53 ******************************************************************************/
mbed_official 121:7f86b4238bec 54 static uint32_t PDB_GetInstance(PDB_Type *base)
mbed_official 121:7f86b4238bec 55 {
mbed_official 121:7f86b4238bec 56 uint32_t instance;
mbed_official 121:7f86b4238bec 57
mbed_official 121:7f86b4238bec 58 /* Find the instance index from base address mappings. */
mbed_official 121:7f86b4238bec 59 for (instance = 0; instance < FSL_FEATURE_SOC_PDB_COUNT; instance++)
mbed_official 121:7f86b4238bec 60 {
mbed_official 121:7f86b4238bec 61 if (s_pdbBases[instance] == base)
mbed_official 121:7f86b4238bec 62 {
mbed_official 121:7f86b4238bec 63 break;
mbed_official 121:7f86b4238bec 64 }
mbed_official 121:7f86b4238bec 65 }
mbed_official 121:7f86b4238bec 66
mbed_official 121:7f86b4238bec 67 assert(instance < FSL_FEATURE_SOC_PDB_COUNT);
mbed_official 121:7f86b4238bec 68
mbed_official 121:7f86b4238bec 69 return instance;
mbed_official 121:7f86b4238bec 70 }
mbed_official 121:7f86b4238bec 71
mbed_official 121:7f86b4238bec 72 void PDB_Init(PDB_Type *base, const pdb_config_t *config)
mbed_official 121:7f86b4238bec 73 {
mbed_official 121:7f86b4238bec 74 assert(NULL != config);
mbed_official 121:7f86b4238bec 75
mbed_official 121:7f86b4238bec 76 uint32_t tmp32;
mbed_official 121:7f86b4238bec 77
mbed_official 121:7f86b4238bec 78 /* Enable the clock. */
mbed_official 121:7f86b4238bec 79 CLOCK_EnableClock(s_pdbClocks[PDB_GetInstance(base)]);
mbed_official 121:7f86b4238bec 80
mbed_official 121:7f86b4238bec 81 /* Configure. */
mbed_official 121:7f86b4238bec 82 /* PDBx_SC. */
mbed_official 121:7f86b4238bec 83 tmp32 = base->SC &
mbed_official 121:7f86b4238bec 84 ~(PDB_SC_LDMOD_MASK | PDB_SC_PRESCALER_MASK | PDB_SC_TRGSEL_MASK | PDB_SC_MULT_MASK | PDB_SC_CONT_MASK);
mbed_official 121:7f86b4238bec 85
mbed_official 121:7f86b4238bec 86 tmp32 |= PDB_SC_LDMOD(config->loadValueMode) | PDB_SC_PRESCALER(config->prescalerDivider) |
mbed_official 121:7f86b4238bec 87 PDB_SC_TRGSEL(config->triggerInputSource) | PDB_SC_MULT(config->dividerMultiplicationFactor);
mbed_official 121:7f86b4238bec 88 if (config->enableContinuousMode)
mbed_official 121:7f86b4238bec 89 {
mbed_official 121:7f86b4238bec 90 tmp32 |= PDB_SC_CONT_MASK;
mbed_official 121:7f86b4238bec 91 }
mbed_official 121:7f86b4238bec 92 base->SC = tmp32;
mbed_official 121:7f86b4238bec 93
mbed_official 121:7f86b4238bec 94 PDB_Enable(base, true); /* Enable the PDB module. */
mbed_official 121:7f86b4238bec 95 }
mbed_official 121:7f86b4238bec 96
mbed_official 121:7f86b4238bec 97 void PDB_Deinit(PDB_Type *base)
mbed_official 121:7f86b4238bec 98 {
mbed_official 121:7f86b4238bec 99 PDB_Enable(base, false); /* Disable the PDB module. */
mbed_official 121:7f86b4238bec 100
mbed_official 121:7f86b4238bec 101 /* Disable the clock. */
mbed_official 121:7f86b4238bec 102 CLOCK_DisableClock(s_pdbClocks[PDB_GetInstance(base)]);
mbed_official 121:7f86b4238bec 103 }
mbed_official 121:7f86b4238bec 104
mbed_official 121:7f86b4238bec 105 void PDB_GetDefaultConfig(pdb_config_t *config)
mbed_official 121:7f86b4238bec 106 {
mbed_official 121:7f86b4238bec 107 assert(NULL != config);
mbed_official 121:7f86b4238bec 108
mbed_official 121:7f86b4238bec 109 config->loadValueMode = kPDB_LoadValueImmediately;
mbed_official 121:7f86b4238bec 110 config->prescalerDivider = kPDB_PrescalerDivider1;
mbed_official 121:7f86b4238bec 111 config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1;
mbed_official 121:7f86b4238bec 112 config->triggerInputSource = kPDB_TriggerSoftware;
mbed_official 121:7f86b4238bec 113 config->enableContinuousMode = false;
mbed_official 121:7f86b4238bec 114 }
mbed_official 121:7f86b4238bec 115
mbed_official 121:7f86b4238bec 116 #if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC
mbed_official 121:7f86b4238bec 117 void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config)
mbed_official 121:7f86b4238bec 118 {
mbed_official 121:7f86b4238bec 119 assert(channel < PDB_INTC_COUNT);
mbed_official 121:7f86b4238bec 120 assert(NULL != config);
mbed_official 121:7f86b4238bec 121
mbed_official 121:7f86b4238bec 122 uint32_t tmp32 = 0U;
mbed_official 121:7f86b4238bec 123
mbed_official 121:7f86b4238bec 124 /* PDBx_DACINTC. */
mbed_official 121:7f86b4238bec 125 if (config->enableExternalTriggerInput)
mbed_official 121:7f86b4238bec 126 {
mbed_official 121:7f86b4238bec 127 tmp32 |= PDB_INTC_EXT_MASK;
mbed_official 121:7f86b4238bec 128 }
mbed_official 121:7f86b4238bec 129 if (config->enableIntervalTrigger)
mbed_official 121:7f86b4238bec 130 {
mbed_official 121:7f86b4238bec 131 tmp32 |= PDB_INTC_TOE_MASK;
mbed_official 121:7f86b4238bec 132 }
mbed_official 121:7f86b4238bec 133 base->DAC[channel].INTC = tmp32;
mbed_official 121:7f86b4238bec 134 }
mbed_official 121:7f86b4238bec 135 #endif /* FSL_FEATURE_PDB_HAS_DAC */