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annotate packages/hal/mips/arch/current/include/hal_io.h @ 90:70190fa0fe10 ecos-sw-2000-05-19
Merge from eCos master repository on 2000-05-19-07:47:03-BST
| author | jlarmour |
|---|---|
| date | Fri, 19 May 2000 12:47:51 +0000 |
| parents | bf00f99aec69 |
| children | e0c0827131d1 |
| rev | line source |
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| 0 | 1 #ifndef CYGONCE_HAL_HAL_IO_H |
| 2 #define CYGONCE_HAL_HAL_IO_H | |
| 3 | |
| 4 //============================================================================= | |
| 5 // | |
| 2 | 6 // hal_io.h |
| 0 | 7 // |
| 2 | 8 // HAL device IO register support. |
| 0 | 9 // |
| 10 //============================================================================= | |
| 11 //####COPYRIGHTBEGIN#### | |
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12 // |
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13 // ------------------------------------------- |
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14 // The contents of this file are subject to the Red Hat eCos Public License |
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15 // Version 1.1 (the "License"); you may not use this file except in |
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16 // compliance with the License. You may obtain a copy of the License at |
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17 // http://www.redhat.com/ |
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18 // |
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19 // Software distributed under the License is distributed on an "AS IS" |
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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21 // License for the specific language governing rights and limitations under |
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22 // the License. |
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23 // |
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24 // The Original Code is eCos - Embedded Configurable Operating System, |
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25 // released September 30, 1998. |
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26 // |
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27 // The Initial Developer of the Original Code is Red Hat. |
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28 // Portions created by Red Hat are |
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29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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30 // All Rights Reserved. |
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31 // ------------------------------------------- |
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32 // |
| 0 | 33 //####COPYRIGHTEND#### |
| 34 //============================================================================= | |
| 35 //#####DESCRIPTIONBEGIN#### | |
| 36 // | |
| 2 | 37 // Author(s): nickg |
| 38 // Contributors: nickg | |
| 39 // Date: 1998-02-17 | |
| 40 // Purpose: Define IO register support | |
| 41 // Description: The macros defined here provide the HAL APIs for handling | |
| 0 | 42 // device IO control registers. |
| 43 // | |
| 44 // Usage: | |
| 2 | 45 // #include <cyg/hal/hal_io.h> |
| 46 // ... | |
| 47 // | |
| 0 | 48 // |
| 49 //####DESCRIPTIONEND#### | |
| 50 // | |
| 51 //============================================================================= | |
| 52 | |
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53 #include <pkgconf/hal.h> |
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54 |
| 0 | 55 #include <cyg/infra/cyg_type.h> |
| 56 | |
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57 #include <cyg/hal/plf_io.h> |
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58 |
| 0 | 59 //----------------------------------------------------------------------------- |
| 60 // IO Register address. | |
| 61 // This type is for recording the address of an IO register. | |
| 62 | |
| 63 typedef volatile CYG_ADDRWORD HAL_IO_REGISTER; | |
| 64 | |
| 65 //----------------------------------------------------------------------------- | |
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66 // HAL IO macros. |
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67 #ifndef HAL_IO_MACROS_DEFINED |
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68 |
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69 //----------------------------------------------------------------------------- |
| 0 | 70 // BYTE Register access. |
| 71 // Individual and vectorized access to 8 bit registers. | |
| 72 | |
| 73 #define HAL_READ_UINT8( _register_, _value_ ) \ | |
| 74 ((_value_) = *((volatile CYG_BYTE *)(_register_))) | |
| 75 | |
| 76 #define HAL_WRITE_UINT8( _register_, _value_ ) \ | |
| 77 (*((volatile CYG_BYTE *)(_register_)) = (_value_)) | |
| 78 | |
| 79 #define HAL_READ_UINT8_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 80 { \ | |
| 81 cyg_count32 _i_,_j_; \ | |
| 82 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 83 (_buf_)[_i_] = ((volatile CYG_BYTE *)(_register_))[_j_]; \ | |
| 84 } | |
| 85 | |
| 86 #define HAL_WRITE_UINT8_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 87 { \ | |
| 88 cyg_count32 _i_,_j_; \ | |
| 89 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 90 ((volatile CYG_BYTE *)(_register_))[_j_] = (_buf_)[_i_]; \ | |
| 91 } | |
| 92 | |
| 93 | |
| 94 //----------------------------------------------------------------------------- | |
| 95 // 16 bit access. | |
| 96 // Individual and vectorized access to 16 bit registers. | |
| 97 | |
| 98 #define HAL_READ_UINT16( _register_, _value_ ) \ | |
| 99 ((_value_) = *((volatile CYG_WORD16 *)(_register_))) | |
| 100 | |
| 101 #define HAL_WRITE_UINT16( _register_, _value_ ) \ | |
| 102 (*((volatile CYG_WORD16 *)(_register_)) = (_value_)) | |
| 103 | |
| 104 #define HAL_READ_UINT16_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 105 { \ | |
| 106 cyg_count32 _i_,_j_; \ | |
| 107 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 108 (_buf_)[_i_] = ((volatile CYG_WORD16 *)(_register_))[_j_]; \ | |
| 109 } | |
| 110 | |
| 111 #define HAL_WRITE_UINT16_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 112 { \ | |
| 113 cyg_count32 _i_,_j_; \ | |
| 114 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 115 ((volatile CYG_WORD16 *)(_register_))[_j_] = (_buf_)[_i_]; \ | |
| 116 } | |
| 117 | |
| 118 //----------------------------------------------------------------------------- | |
| 119 // 32 bit access. | |
| 120 // Individual and vectorized access to 32 bit registers. | |
| 121 | |
| 122 #define HAL_READ_UINT32( _register_, _value_ ) \ | |
| 123 ((_value_) = *((volatile CYG_WORD32 *)(_register_))) | |
| 124 | |
| 125 #define HAL_WRITE_UINT32( _register_, _value_ ) \ | |
| 126 (*((volatile CYG_WORD32 *)(_register_)) = (_value_)) | |
| 127 | |
| 128 #define HAL_READ_UINT32_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 129 { \ | |
| 130 cyg_count32 _i_,_j_; \ | |
| 131 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 132 (_buf_)[_i_] = ((volatile CYG_WORD32 *)(_register_))[_j_]; \ | |
| 133 } | |
| 134 | |
| 135 #define HAL_WRITE_UINT32_VECTOR( _register_, _buf_, _count_, _step_ ) \ | |
| 136 { \ | |
| 137 cyg_count32 _i_,_j_; \ | |
| 138 for( _i_ = 0, _j_ = 0; _i_ < (_count_); _i_++, _j_ += (_step_)) \ | |
| 139 ((volatile CYG_WORD32 *)(_register_))[_j_] = (_buf_)[_i_]; \ | |
| 140 } | |
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142 #define HAL_IO_MACROS_DEFINED |
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143 |
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144 #endif |
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145 |
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146 |
| 0 | 147 //----------------------------------------------------------------------------- |
| 148 #endif // ifndef CYGONCE_HAL_HAL_IO_H | |
| 149 // End of hal_io.h |
