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annotate packages/hal/common/current/include/hal_if.h @ 101:c37d3a9e1b28 ecos-sw-2000-06-16

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Merge from eCos master repository on 2000-06-16-07:47:03-BST
author jlarmour
date Fri, 16 Jun 2000 16:43:59 +0000
parents
children 95f3e12a6327
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101
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1 #ifndef CYGONCE_HAL_HAL_IF_H
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2 #define CYGONCE_HAL_HAL_IF_H
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3
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4 //=============================================================================
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5 //
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6 // hal_if.h
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7 //
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8 // HAL header for ROM/RAM calling interface.
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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: 2000-06-07
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40 // Purpose: HAL RAM/ROM calling interface
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41 // Description: ROM/RAM calling interface table definitions. The layout is a
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42 // combination of libbsp and vectors already in use by some
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43 // eCos platforms.
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44 // Usage: #include <cyg/hal/hal_if.h>
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45 //
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46 //####DESCRIPTIONEND####
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47 //
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48 //=============================================================================
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49
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50 #include <cyg/infra/cyg_type.h> // types & externC
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51 #include <cyg/hal/dbg-threads-api.h>
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52 #include <cyg/hal/dbg-thread-syscall.h>
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53
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54
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55 //--------------------------------------------------------------------------
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56 typedef int (*bsp_handler_t)(int __irq_nr, void *__regs);
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57
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58 //--------------------------------------------------------------------------
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59 // Communication interface table. CYGNUM_CALL_IF_CONSOLE_PROCS and
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60 // CYGNUM_CALL_IF_DEBUG_PROCS point to instances (possibly the same)
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61 // of this table.
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62
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63 typedef enum {
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64 /*
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65 * For serial ports, the control function may be used to set and get the
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66 * current baud rate. Usage:
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67 *
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68 * err = (*__control)(COMMCTL_SETBAUD, int bits_per_second);
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69 * err => Zero if successful, -1 if error.
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70 *
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71 * baud = (*__control)(COMMCTL_GETBAUD);
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72 * baud => -1 if error, current baud otherwise.
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73 */
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74 __COMMCTL_SETBAUD=0,
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75 __COMMCTL_GETBAUD,
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76
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77 /*
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78 * Install and remove debugger interrupt handlers. These are the receiver
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79 * interrupt routines which are used to change control from a running
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80 * program to the debugger stub.
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81 */
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82 __COMMCTL_INSTALL_DBG_ISR,
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83 __COMMCTL_REMOVE_DBG_ISR,
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84
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85 /*
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86 * Disable comm port interrupt. Returns TRUE if interrupt was enabled,
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87 * FALSE otherwise.
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88 */
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89 __COMMCTL_IRQ_DISABLE,
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90
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91 /*
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92 * Enable comm port interrupt.
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93 */
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94 __COMMCTL_IRQ_ENABLE,
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95 } __comm_control_cmd_t;
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96
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97
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98 #define CYGNUM_COMM_IF_CH_DATA 0
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99 #define CYGNUM_COMM_IF_WRITE 1
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100 #define CYGNUM_COMM_IF_READ 2
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101 #define CYGNUM_COMM_IF_PUTC 3
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102 #define CYGNUM_COMM_IF_GETC 4
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103 #define CYGNUM_COMM_IF_CONTROL 5
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104
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105 #define CYGNUM_COMM_IF_TABLE_SIZE 8
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106
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107 typedef CYG_ADDRWORD hal_virtual_comm_table_t[CYGNUM_COMM_IF_TABLE_SIZE];
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108
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109 // The below is a (messy) attempt at adding some type safety to the
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110 // above array. At the same time, the accessors allow the
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111 // implementation to be easily changed in the future (both tag->data
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112 // table and structure implementations have been suggested).
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113
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114 typedef void* __comm_if_ch_data_t;
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115 #define CYGACC_COMM_IF_CH_DATA(_t_) \
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116 ((__comm_if_ch_data_t)(((_t_))[CYGNUM_COMM_IF_CH_DATA]))
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117 #define CYGACC_COMM_IF_CH_DATA_SET(_t_, _x_) \
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118 (_t_)[CYGNUM_COMM_IF_CH_DATA]=(CYG_ADDRWORD)(_x_)
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119
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120 typedef void (*__comm_if_write_t)(void* __ch_data, const cyg_uint8* __buf,
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121 cyg_uint32 __len);
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122 #define CYGACC_COMM_IF_WRITE(_t_) \
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123 ((__comm_if_write_t)(((_t_))[CYGNUM_COMM_IF_WRITE]))
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124 #define CYGACC_COMM_IF_WRITE_SET(_t_, _x_) \
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125 (_t_)[CYGNUM_COMM_IF_WRITE]=(CYG_ADDRWORD)(_x_)
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126
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127 typedef int (*__comm_if_read_t)(void* __ch_data, cyg_uint8* __buf,
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128 cyg_uint32 __len);
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129 #define CYGACC_COMM_IF_READ(_t_) \
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130 ((__comm_if_read_t)(((_t_))[CYGNUM_COMM_IF_READ]))
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131 #define CYGACC_COMM_IF_READ_SET(_t_, _x_) \
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132 (_t_)[CYGNUM_COMM_IF_READ]=(CYG_ADDRWORD)(_x_)
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133
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134 typedef void (*__comm_if_putc_t)(void* __ch_data, cyg_uint8 __ch);
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135 #define CYGACC_COMM_IF_PUTC(_t_) \
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136 ((__comm_if_putc_t)(((_t_))[CYGNUM_COMM_IF_PUTC]))
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137 #define CYGACC_COMM_IF_PUTC_SET(_t_, _x_) \
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138 (_t_)[CYGNUM_COMM_IF_PUTC]=(CYG_ADDRWORD)(_x_)
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139
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140 typedef cyg_uint8 (*__comm_if_getc_t)(void* __ch_data);
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141 #define CYGACC_COMM_IF_GETC(_t_) \
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142 ((__comm_if_getc_t)(((_t_))[CYGNUM_COMM_IF_GETC]))
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143 #define CYGACC_COMM_IF_GETC_SET(_t_, _x_) \
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144 (_t_)[CYGNUM_COMM_IF_GETC]=(CYG_ADDRWORD)(_x_)
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145
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146 typedef int (*__comm_if_control_t)(void *__ch_data,
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147 __comm_control_cmd_t __func, ...);
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148 #define CYGACC_COMM_IF_CONTROL(_t_) \
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149 ((__comm_if_control_t)(((_t_))[CYGNUM_COMM_IF_CONTROL]))
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150 #define CYGACC_COMM_IF_CONTROL_SET(_t_, _x_) \
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151 (_t_)[CYGNUM_COMM_IF_CONTROL]=(CYG_ADDRWORD)(_x_)
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152
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153
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154 //--------------------------------------------------------------------------
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155 // Main calling interface table. Will be assigned a location by the
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156 // linker script. Both ROM and RAM startup applications will know about
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157 // the location.
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158 #define CYGNUM_CALL_IF_VERSION 0
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159 #define CYGNUM_CALL_IF_ICTRL_TABLE 1
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160 #define CYGNUM_CALL_IF_EXC_TABLE 2
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161 #define CYGNUM_CALL_IF_DBG_VECTOR 3
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162 #define CYGNUM_CALL_IF_KILL_VECTOR 4
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163 #define CYGNUM_CALL_IF_CONSOLE_PROCS 5
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164 #define CYGNUM_CALL_IF_DEBUG_PROCS 6
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165 #define CYGNUM_CALL_IF_FLUSH_DCACHE 7
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166 #define CYGNUM_CALL_IF_FLUSH_ICACHE 8
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167 #define CYGNUM_CALL_IF_CPU_DATA 9
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168 #define CYGNUM_CALL_IF_BOARD_DATA 10
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169 #define CYGNUM_CALL_IF_SYSINFO 11
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170 #define CYGNUM_CALL_IF_SET_DEBUG_COMM 12
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171 #define CYGNUM_CALL_IF_SET_CONSOLE_COMM 13
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172 #define CYGNUM_CALL_IF_SET_SERIAL_BAUD 14
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173 #define CYGNUM_CALL_IF_DBG_DATA 15
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174 #define CYGNUM_CALL_IF_DBG_SYSCALL 15 // conflict!
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175 #define CYGNUM_CALL_IF_RESET 16
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176 #define CYGNUM_CALL_IF_CONSOLE_INTERRUPT_FLAG 17
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177
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178 #define CYGNUM_CALL_IF_LAST_ENTRY CYGNUM_CALL_IF_CONSOLE_INTERRUPT_FLAG
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179
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180 #define CYGNUM_CALL_IF_INSTALL_BPT_FN 35
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181
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182 #define CYGNUM_CALL_IF_TABLE_SIZE 64
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183
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184 externC CYG_ADDRWORD hal_virtual_vector_table[CYGNUM_CALL_IF_TABLE_SIZE];
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185
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186 // Table version is simply the number of the last active entry in the table
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187 // (except INSTALL_BPT_FN since it's so high).
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188 #define CYGNUM_CALL_IF_TABLE_VERSION CYGNUM_CALL_IF_LAST_ENTRY
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189
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190 // The below is a (messy) attempt at adding some type safety to the
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191 // above array. At the same time, the accessors allow the
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192 // implementation to be easily changed in the future (both tag->data
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193 // table and structure implementations have been suggested).
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194
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195 typedef int __call_if_version_t;
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196 #define CYGACC_CALL_IF_VERSION() \
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197 ((__call_if_version_t)hal_virtual_vector_table[CYGNUM_CALL_IF_VERSION])
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198 #define CYGACC_CALL_IF_VERSION_SET(_x_) \
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199 hal_virtual_vector_table[CYGNUM_CALL_IF_VERSION]=(CYG_ADDRWORD)(_x_)
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200
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201 typedef void* __call_if_ictrl_table_t;
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202 #define CYGACC_CALL_IF_ICTRL_TABLE() \
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203 ((__call_if_ictrl_table_t)hal_virtual_vector_table[CYGNUM_CALL_IF_ICTRL_TABLE])
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204 #define CYGACC_CALL_IF_ICTRL_TABLE_SET(_x_) \
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205 hal_virtual_vector_table[CYGNUM_CALL_IF_ICTRL_TABLE]=(CYG_ADDRWORD)(_x_)
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206
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207 typedef void* __call_if_exc_table_t;
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208 #define CYGACC_CALL_IF_EXC_TABLE() \
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209 ((__call_if_exc_table_t)hal_virtual_vector_table[CYGNUM_CALL_IF_EXC_TABLE])
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210 #define CYGACC_CALL_IF_EXC_TABLE_SET(_x_) \
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211 hal_virtual_vector_table[CYGNUM_CALL_IF_EXC_TABLE]=(CYG_ADDRWORD)(_x_)
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212
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213 typedef bsp_handler_t *__call_if_dbg_vector_t;
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214 #define CYGACC_CALL_IF_DBG_VECTOR() \
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215 ((__call_if_dbg_vector_t)hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_VECTOR])
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216 #define CYGACC_CALL_IF_DBG_VECTOR_SET(_x_) \
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217 hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_VECTOR]=(CYG_ADDRWORD)(_x_)
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218
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219 typedef bsp_handler_t __call_if_kill_vector_t;
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220 #define CYGACC_CALL_IF_KILL_VECTOR() \
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221 ((__call_if_kill_vector_t)hal_virtual_vector_table[CYGNUM_CALL_IF_KILL_VECTOR])
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222 #define CYGACC_CALL_IF_KILL_VECTOR_SET(_x_) \
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223 hal_virtual_vector_table[CYGNUM_CALL_IF_KILL_VECTOR]=(CYG_ADDRWORD)(_x_)
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224
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225 typedef hal_virtual_comm_table_t *__call_if_console_procs_t;
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226 #define CYGACC_CALL_IF_CONSOLE_PROCS() \
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227 ((__call_if_console_procs_t)hal_virtual_vector_table[CYGNUM_CALL_IF_CONSOLE_PROCS])
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228 #define CYGACC_CALL_IF_CONSOLE_PROCS_SET(_x_) \
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229 hal_virtual_vector_table[CYGNUM_CALL_IF_CONSOLE_PROCS]=(CYG_ADDRWORD)(_x_)
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230
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231 typedef hal_virtual_comm_table_t *__call_if_debug_procs_t;
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232 #define CYGACC_CALL_IF_DEBUG_PROCS() \
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233 ((__call_if_debug_procs_t)hal_virtual_vector_table[CYGNUM_CALL_IF_DEBUG_PROCS])
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234 #define CYGACC_CALL_IF_DEBUG_PROCS_SET(_x_) \
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235 hal_virtual_vector_table[CYGNUM_CALL_IF_DEBUG_PROCS]=(CYG_ADDRWORD)(_x_)
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236
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237 typedef void (*__call_if_flush_dcache_t)(void *__p, int __nbytes);
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238 #define CYGACC_CALL_IF_FLUSH_DCACHE() \
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239 ((__call_if_flush_dcache_t)hal_virtual_vector_table[CYGNUM_CALL_IF_FLUSH_DCACHE])
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240 #define CYGACC_CALL_IF_FLUSH_DCACHE_SET(_x_) \
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241 hal_virtual_vector_table[CYGNUM_CALL_IF_FLUSH_DCACHE]=(CYG_ADDRWORD)(_x_)
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242
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243 typedef void (*__call_if_flush_icache_t)(void *__p, int __nbytes);
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244 #define CYGACC_CALL_IF_FLUSH_ICACHE() \
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245 ((__call_if_flush_icache_t)hal_virtual_vector_table[CYGNUM_CALL_IF_FLUSH_ICACHE])
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246 #define CYGACC_CALL_IF_FLUSH_ICACHE_SET(_x_) \
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247 hal_virtual_vector_table[CYGNUM_CALL_IF_FLUSH_ICACHE]=(CYG_ADDRWORD)(_x_)
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248
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249 typedef void* __call_if_cpu_data_t;
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250 #define CYGACC_CALL_IF_CPU_DATA() \
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251 ((__call_if_cpu_data_t)hal_virtual_vector_table[CYGNUM_CALL_IF_CPU_DATA])
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252 #define CYGACC_CALL_IF_CPU_DATA_SET(_x_) \
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253 hal_virtual_vector_table[CYGNUM_CALL_IF_CPU_DATA]=(CYG_ADDRWORD)(_x_)
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254
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255 typedef void* __call_if_board_data_t;
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256 #define CYGACC_CALL_IF_BOARD_DATA() \
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257 ((__call_if_board_data_t)hal_virtual_vector_table[CYGNUM_CALL_IF_BOARD_DATA])
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258 #define CYGACC_CALL_IF_BOARD_DATA_SET(_x_) \
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259 hal_virtual_vector_table[CYGNUM_CALL_IF_BOARD_DATA]=(CYG_ADDRWORD)(_x_)
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260
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261 typedef int (*__call_if_sysinfo_t)(int __id, void* __ap);
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262 //typedef int (*__call_if_sysinfo_t)(enum bsp_info_id __id, va_list __ap);
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263 #define CYGACC_CALL_IF_SYSINFO() \
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264 ((__call_if_sysinfo_t)hal_virtual_vector_table[CYGNUM_CALL_IF_SYSINFO])
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265 #define CYGACC_CALL_IF_SYSINFO_SET(_x_) \
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266 hal_virtual_vector_table[CYGNUM_CALL_IF_SYSINFO]=(CYG_ADDRWORD)(_x_)
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267
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268 typedef int (*__call_if_set_debug_comm_t)(int __comm_id);
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269 #define CYGACC_CALL_IF_SET_DEBUG_COMM() \
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270 ((__call_if_set_debug_comm_t)hal_virtual_vector_table[CYGNUM_CALL_IF_SET_DEBUG_COMM])
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271 #define CYGACC_CALL_IF_SET_DEBUG_COMM_SET(_x_) \
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272 hal_virtual_vector_table[CYGNUM_CALL_IF_SET_DEBUG_COMM]=(CYG_ADDRWORD)(_x_)
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273
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274 typedef int (*__call_if_set_console_comm_t)(int __comm_id);
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275 #define CYGACC_CALL_IF_SET_CONSOLE_COMM() \
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276 ((__call_if_set_console_comm_t)hal_virtual_vector_table[CYGNUM_CALL_IF_SET_CONSOLE_COMM])
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277 #define CYGACC_CALL_IF_SET_CONSOLE_COMM_SET(_x_) \
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278 hal_virtual_vector_table[CYGNUM_CALL_IF_SET_CONSOLE_COMM]=(CYG_ADDRWORD)(_x_)
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279
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280 typedef int (*__call_if_set_serial_baud_t)(int __comm_id, int __baud);
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281 #define CYGACC_CALL_IF_SET_SERIAL_BAUD() \
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282 ((__call_if_set_serial_baud_t)hal_virtual_vector_table[CYGNUM_CALL_IF_SET_SERIAL_BAUD])
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283 #define CYGACC_CALL_IF_SET_SERIAL_BAUD_SET(_x_) \
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284 hal_virtual_vector_table[CYGNUM_CALL_IF_SET_SERIAL_BAUD]=(CYG_ADDRWORD)(_x_)
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285
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286 typedef void* __call_if_dbg_data_t;
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287 #define CYGACC_CALL_IF_DBG_DATA() \
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288 ((__call_if_dbg_data_t)hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_DATA])
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289 #define CYGACC_CALL_IF_DBG_DATA_SET(_x_) \
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290 hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_DATA]=(CYG_ADDRWORD)(_x_)
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291
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292 typedef int (*__call_if_dbg_syscall_t) (enum dbg_syscall_ids id,
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293 union dbg_thread_syscall_parms *p );
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294 #define CYGACC_CALL_IF_DBG_SYSCALL() \
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295 ((__call_if_dbg_syscall_t)hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_SYSCALL])
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296 #define CYGACC_CALL_IF_DBG_SYSCALL_SET(_x_) \
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297 hal_virtual_vector_table[CYGNUM_CALL_IF_DBG_SYSCALL]=(CYG_ADDRWORD)(_x_)
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298
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299 typedef void (*__call_if_reset_t)(void);
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300 #define CYGACC_CALL_IF_RESET() \
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301 ((__call_if_reset_t)hal_virtual_vector_table[CYGNUM_CALL_IF_RESET])
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302 #define CYGACC_CALL_IF_RESET_SET(_x_) \
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303 hal_virtual_vector_table[CYGNUM_CALL_IF_RESET]=(CYG_ADDRWORD)(_x_)
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304
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305 typedef int __call_if_console_interrupt_flag_t;
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306 #define CYGACC_CALL_IF_CONSOLE_INTERRUPT_FLAG() \
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307 ((__call_if_console_interrupt_flag_t)hal_virtual_vector_table[CYGNUM_CALL_IF_CONSOLE_INTERRUPT_FLAG])
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308 #define CYGACC_CALL_IF_CONSOLE_INTERRUPT_FLAG_SET(_x_) \
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309 hal_virtual_vector_table[CYGNUM_CALL_IF_CONSOLE_INTERRUPT_FLAG]=(CYG_ADDRWORD)(_x_)
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310
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311 typedef void (*__call_if_install_bpt_fn_t)(void *__epc);
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312 #define CYGACC_CALL_IF_INSTALL_BPT_FN() \
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313 ((__call_if_install_bpt_fn_t)hal_virtual_vector_table[CYGNUM_CALL_IF_INSTALL_BPT_FN])
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314 #define CYGACC_CALL_IF_INSTALL_BPT_FN_SET(_x_) \
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315 hal_virtual_vector_table[CYGNUM_CALL_IF_INSTALL_BPT_FN]=(CYG_ADDRWORD)(_x_)
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316
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317
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318 //--------------------------------------------------------------------------
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319 // Functions provided by the HAL interface.
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320 externC void hal_if_init(void);
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321
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322
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323 //--------------------------------------------------------------------------
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324 // Diag wrappers.
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325 externC void hal_if_diag_init(void);
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326 externC void hal_if_diag_write_char(char c);
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327 externC void hal_if_diag_read_char(char *c);
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328
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329 //--------------------------------------------------------------------------
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330 // Determining if console code needs to be included, or if it will be
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331 // provided by via the vector table:
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332 //
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333 // The console channel is already handled if (a) stubs are included and the
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334 // console and debug channels are the same, or (b) the console channel is
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335 // the same as the ROM monitor debug channel.
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336 #if (defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS) \
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337 && (CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL == CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL)) \
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338 || (defined(CYGSEM_HAL_USE_ROM_MONITOR_GDB_stubs) \
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339 && (CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL == CYGNUM_HAL_VIRTUAL_VECTOR_ROM_DEBUG_CHANNEL))
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340 # define CYGPRI_CONSOLE_PROCS_HANDLED
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341 #endif
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342
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343 //-----------------------------------------------------------------------------
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344 #endif // CYGONCE_HAL_HAL_IF_H
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345 // End of hal_if.h