1 /*
2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
3 * Copyright 2016-2017 NXP
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * o Redistributions of source code must retain the above copyright notice, this list
9 * of conditions and the following disclaimer.
10 *
11 * o Redistributions in binary form must reproduce the above copyright notice, this
12 * list of conditions and the following disclaimer in the documentation and/or
13 * other materials provided with the distribution.
14 *
15 * o Neither the name of the copyright holder nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "fsl_pdb.h"
32
33 /*******************************************************************************
34 * Prototypes
35 ******************************************************************************/
36 /*!
37 * @brief Get instance number for PDB module.
38 *
39 * @param base PDB peripheral base address
40 */
41 static uint32_t PDB_GetInstance(PDB_Type *base);
42
43 /*******************************************************************************
44 * Variables
45 ******************************************************************************/
46 /*! @brief Pointers to PDB bases for each instance. */
47 static PDB_Type *const s_pdbBases[] = PDB_BASE_PTRS;
48 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
49 /*! @brief Pointers to PDB clocks for each instance. */
50 static const clock_ip_name_t s_pdbClocks[] = PDB_CLOCKS;
51 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
52
53 /*******************************************************************************
54 * Codes
55 ******************************************************************************/
PDB_GetInstance(PDB_Type * base)56 static uint32_t PDB_GetInstance(PDB_Type *base)
57 {
58 uint32_t instance;
59
60 /* Find the instance index from base address mappings. */
61 for (instance = 0; instance < ARRAY_SIZE(s_pdbBases); instance++)
62 {
63 if (s_pdbBases[instance] == base)
64 {
65 break;
66 }
67 }
68
69 assert(instance < ARRAY_SIZE(s_pdbBases));
70
71 return instance;
72 }
73
PDB_Init(PDB_Type * base,const pdb_config_t * config)74 void PDB_Init(PDB_Type *base, const pdb_config_t *config)
75 {
76 assert(NULL != config);
77
78 uint32_t tmp32;
79
80 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
81 /* Enable the clock. */
82 CLOCK_EnableClock(s_pdbClocks[PDB_GetInstance(base)]);
83 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
84
85 /* Configure. */
86 /* PDBx_SC. */
87 tmp32 = base->SC &
88 ~(PDB_SC_LDMOD_MASK | PDB_SC_PRESCALER_MASK | PDB_SC_TRGSEL_MASK | PDB_SC_MULT_MASK | PDB_SC_CONT_MASK);
89
90 tmp32 |= PDB_SC_LDMOD(config->loadValueMode) | PDB_SC_PRESCALER(config->prescalerDivider) |
91 PDB_SC_TRGSEL(config->triggerInputSource) | PDB_SC_MULT(config->dividerMultiplicationFactor);
92 if (config->enableContinuousMode)
93 {
94 tmp32 |= PDB_SC_CONT_MASK;
95 }
96 base->SC = tmp32;
97
98 PDB_Enable(base, true); /* Enable the PDB module. */
99 }
100
PDB_Deinit(PDB_Type * base)101 void PDB_Deinit(PDB_Type *base)
102 {
103 PDB_Enable(base, false); /* Disable the PDB module. */
104
105 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
106 /* Disable the clock. */
107 CLOCK_DisableClock(s_pdbClocks[PDB_GetInstance(base)]);
108 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
109 }
110
PDB_GetDefaultConfig(pdb_config_t * config)111 void PDB_GetDefaultConfig(pdb_config_t *config)
112 {
113 assert(NULL != config);
114
115 config->loadValueMode = kPDB_LoadValueImmediately;
116 config->prescalerDivider = kPDB_PrescalerDivider1;
117 config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1;
118 config->triggerInputSource = kPDB_TriggerSoftware;
119 config->enableContinuousMode = false;
120 }
121
122 #if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC
PDB_SetDACTriggerConfig(PDB_Type * base,uint32_t channel,pdb_dac_trigger_config_t * config)123 void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config)
124 {
125 assert(channel < PDB_INTC_COUNT);
126 assert(NULL != config);
127
128 uint32_t tmp32 = 0U;
129
130 /* PDBx_DACINTC. */
131 if (config->enableExternalTriggerInput)
132 {
133 tmp32 |= PDB_INTC_EXT_MASK;
134 }
135 if (config->enableIntervalTrigger)
136 {
137 tmp32 |= PDB_INTC_TOE_MASK;
138 }
139 base->DAC[channel].INTC = tmp32;
140 }
141 #endif /* FSL_FEATURE_PDB_HAS_DAC */
142