| Christina Quast | 2d18f17 | 2014-11-22 19:48:48 +0100 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2009, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /*----------------------------------------------------------------------------
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| 31 | * Headers
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| 32 | *----------------------------------------------------------------------------*/
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| 33 |
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| 34 | #include "include/chip.h"
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| 35 |
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| 36 | //#include <//assert.h>
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| 37 |
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| 38 | /*----------------------------------------------------------------------------
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| 39 | * Local definitions
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| 40 | *----------------------------------------------------------------------------*/
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| 41 |
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| 42 | #define MASK_STATUS0 0xFFFFFFFC
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| 43 | #define MASK_STATUS1 0xFFFFFFFF
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| 44 |
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| 45 | /*----------------------------------------------------------------------------
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| 46 | * Exported functions
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| 47 | *----------------------------------------------------------------------------*/
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| 48 |
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| 49 | /**
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| 50 | * \brief Enables the clock of a peripheral. The peripheral ID is used
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| 51 | * to identify which peripheral is targetted.
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| 52 | *
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| 53 | * \note The ID must NOT be shifted (i.e. 1 << ID_xxx).
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| 54 | *
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| 55 | * \param id Peripheral ID (ID_xxx).
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| 56 | */
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| 57 | extern void PMC_EnablePeripheral( uint32_t dwId )
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| 58 | {
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| 59 | //assert( dwId < 35 ) ;
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| 60 |
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| 61 | if ( dwId < 32 )
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| 62 | {
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| 63 | if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId) )
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| 64 | {
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| 65 | }
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| 66 | else
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| 67 | {
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| 68 | PMC->PMC_PCER0 = 1 << dwId ;
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| 69 | }
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| 70 | }
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| 71 | else
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| 72 | {
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| 73 | dwId -= 32;
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| 74 | if ((PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId))
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| 75 | {
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| 76 | }
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| 77 | else
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| 78 | {
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| 79 | PMC->PMC_PCER1 = 1 << dwId ;
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| 80 | }
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| 81 | }
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| 82 | }
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| 83 |
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| 84 | /**
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| 85 | * \brief Disables the clock of a peripheral. The peripheral ID is used
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| 86 | * to identify which peripheral is targetted.
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| 87 | *
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| 88 | * \note The ID must NOT be shifted (i.e. 1 << ID_xxx).
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| 89 | *
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| 90 | * \param id Peripheral ID (ID_xxx).
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| 91 | */
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| 92 | extern void PMC_DisablePeripheral( uint32_t dwId )
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| 93 | {
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| 94 | //assert( dwId < 35 ) ;
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| 95 |
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| 96 | if ( dwId < 32 )
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| 97 | {
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| 98 | if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) )
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| 99 | {
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| 100 | }
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| 101 | else
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| 102 | {
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| 103 | PMC->PMC_PCDR0 = 1 << dwId ;
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| 104 | }
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| 105 | }
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| 106 | else
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| 107 | {
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| 108 | dwId -= 32 ;
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| 109 | if ( (PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) )
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| 110 | {
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| 111 | }
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| 112 | else
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| 113 | {
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| 114 | PMC->PMC_PCDR1 = 1 << dwId ;
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| 115 | }
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | /**
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| 120 | * \brief Enable all the periph clock via PMC.
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| 121 | */
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| 122 | extern void PMC_EnableAllPeripherals( void )
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| 123 | {
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| 124 | PMC->PMC_PCER0 = MASK_STATUS0 ;
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| 125 | while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != MASK_STATUS0 ) ;
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| 126 |
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| 127 | PMC->PMC_PCER1 = MASK_STATUS1 ;
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| 128 | while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != MASK_STATUS1 ) ;
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| 129 |
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| 130 | }
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| 131 |
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| 132 | /**
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| 133 | * \brief Disable all the periph clock via PMC.
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| 134 | */
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| 135 | extern void PMC_DisableAllPeripherals( void )
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| 136 | {
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| 137 | PMC->PMC_PCDR0 = MASK_STATUS0 ;
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| 138 | while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != 0 ) ;
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| 139 |
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| 140 | PMC->PMC_PCDR1 = MASK_STATUS1 ;
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| 141 | while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != 0 ) ;
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| 142 |
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| 143 | }
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| 144 |
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| 145 | /**
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| 146 | * \brief Get Periph Status for the given peripheral ID.
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| 147 | *
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| 148 | * \param id Peripheral ID (ID_xxx).
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| 149 | */
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| 150 | extern uint32_t PMC_IsPeriphEnabled( uint32_t dwId )
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| 151 | {
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| 152 | //assert( dwId < 35 ) ;
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| 153 |
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| 154 | if ( dwId < 32 )
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| 155 | {
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| 156 | return ( PMC->PMC_PCSR0 & (1 << dwId) ) ;
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| 157 | }
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| 158 | else {
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| 159 | return ( PMC->PMC_PCSR1 & (1 << (dwId - 32)) ) ;
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| 160 | }
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| 161 | }
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