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Merge from eCos master repository on 2001-06-29-06:43:03-BST
author jlarmour
date Fri, 29 Jun 2001 07:16:25 +0000
parents 6b5f480c6929
children 5602a8379ebc
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1 #ifndef CYGONCE_HAL_HAL_MISC_H
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2 #define CYGONCE_HAL_HAL_MISC_H
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3
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4 //=============================================================================
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5 //
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6 // hal_misc.h
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7 //
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8 // HAL header for miscellaneous helper routines
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9 //
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10 //=============================================================================
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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 //
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33 //####COPYRIGHTEND####
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34 //=============================================================================
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35 //#####DESCRIPTIONBEGIN####
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36 //
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37 // Author(s): jskov
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38 // Contributors:jskov
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39 // Date: 2000-06-08
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40 // Purpose: Miscellaneous routines shared between HALs
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41 // Usage: #include <cyg/hal/hal_misc.h>
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42 //
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43 //####DESCRIPTIONEND####
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44 //
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45 //=============================================================================
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46
143
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47 #ifndef __ASSEMBLER__
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48 #include <cyg/infra/cyg_type.h> // types & externC
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49
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50 //=============================================================================
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51 // Function used to call ISRs from ISR arbiters
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52 // An arbiter is hooked on the shared interrupt vector and looks like this:
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53 //
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54 // cyg_uint32 _arbitration_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
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55 // {
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56 // cyg_uint32 isr_ret;
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57 // // decode interrupt source and for each active source call the ISR
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58 // if (source_A_active) {
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59 // isr_ret = hal_call_isr (CYGNUM_HAL_INTERRUPT_SOURCE_A);
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60 // #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
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61 // if (isr_ret & CYG_ISR_HANDLED)
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62 // #endif
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63 // return isr_ret;
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64 // }
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65 // if (source_B_active) {
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66 // isr_ret = hal_call_isr (CYGNUM_HAL_INTERRUPT_SOURCE_B);
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67 // #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
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68 // if (isr_ret & CYG_ISR_HANDLED)
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69 // #endif
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70 // return isr_ret;
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71 // }
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72 // ...
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73 // return 0;
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74 // }
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75 //
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76 // Remember to attach and enable the arbiter source:
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77 // HAL_INTERRUPT_ATTACH(CYGNUM_HAL_INTERRUPT_ARBITER, &_arbitration_isr, 0, 0);
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78 // HAL_INTERRUPT_SET_LEVEL(CYGNUM_HAL_INTERRUPT_ARBITER, 1);
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79 // HAL_INTERRUPT_UNMASK(CYGNUM_HAL_INTERRUPT_ARBITER);
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80 //
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81
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82 #include <cyg/hal/hal_intr.h> // hal_interrupt_x tables
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83 #include <cyg/hal/drv_api.h> // CYG_ISR_HANDLED
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84
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85 typedef cyg_uint32 cyg_ISR(cyg_uint32 vector, CYG_ADDRWORD data);
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86
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87 extern void cyg_interrupt_post_dsr( CYG_ADDRWORD intr_obj );
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88
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89 static inline cyg_uint32
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90 hal_call_isr (cyg_uint32 vector)
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91 {
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92 cyg_ISR *isr;
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93 CYG_ADDRWORD data;
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94 cyg_uint32 isr_ret;
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95
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96 isr = (cyg_ISR*) hal_interrupt_handlers[vector];
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97 data = hal_interrupt_data[vector];
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98
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99 isr_ret = (*isr) (vector, data);
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100
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101 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
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102 if (isr_ret & CYG_ISR_CALL_DSR) {
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103 cyg_interrupt_post_dsr (hal_interrupt_objects[vector]);
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104 }
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105 #endif
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106
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107 return isr_ret & ~CYG_ISR_CALL_DSR;
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108 }
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109
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110 //=============================================================================
101
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111 externC cyg_bool cyg_hal_is_break(char *buf, int size);
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112 externC void cyg_hal_user_break( CYG_ADDRWORD *regs );
143
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113 #endif
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114
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115 //=============================================================================
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116
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117 #define BIT0 0x00000001
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118 #define BIT1 0x00000002
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119 #define BIT2 0x00000004
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120 #define BIT3 0x00000008
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121 #define BIT4 0x00000010
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122 #define BIT5 0x00000020
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123 #define BIT6 0x00000040
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124 #define BIT7 0x00000080
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125 #define BIT8 0x00000100
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126 #define BIT9 0x00000200
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127 #define BIT10 0x00000400
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128 #define BIT11 0x00000800
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129 #define BIT12 0x00001000
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130 #define BIT13 0x00002000
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131 #define BIT14 0x00004000
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132 #define BIT15 0x00008000
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133 #define BIT16 0x00010000
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134 #define BIT17 0x00020000
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135 #define BIT18 0x00040000
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136 #define BIT19 0x00080000
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137 #define BIT20 0x00100000
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138 #define BIT21 0x00200000
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139 #define BIT22 0x00400000
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140 #define BIT23 0x00800000
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141 #define BIT24 0x01000000
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142 #define BIT25 0x02000000
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143 #define BIT26 0x04000000
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144 #define BIT27 0x08000000
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145 #define BIT28 0x10000000
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146 #define BIT29 0x20000000
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147 #define BIT30 0x40000000
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148 #define BIT31 0x80000000
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149
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150 #define SZ_1K 0x00000400
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151 #define SZ_2K 0x00000800
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152 #define SZ_4K 0x00001000
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153 #define SZ_8K 0x00002000
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154 #define SZ_16K 0x00004000
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155 #define SZ_32K 0x00008000
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156 #define SZ_64K 0x00010000
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157 #define SZ_128K 0x00020000
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158 #define SZ_256K 0x00040000
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159 #define SZ_512K 0x00080000
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160 #define SZ_1M 0x00100000
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161 #define SZ_2M 0x00200000
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162 #define SZ_4M 0x00400000
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163 #define SZ_8M 0x00800000
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164 #define SZ_16M 0x01000000
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165 #define SZ_32M 0x02000000
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166 #define SZ_64M 0x04000000
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167 #define SZ_128M 0x08000000
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168 #define SZ_256M 0x10000000
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169 #define SZ_512M 0x20000000
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170 #define SZ_1G 0x40000000
101
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171
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172 //-----------------------------------------------------------------------------
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173 #endif // CYGONCE_HAL_HAL_MISC_H
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174 // End of hal_misc.h