1 | /* |
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2 | * This include file contains all board IO definitions. |
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3 | * |
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4 | * generic sh1 |
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5 | * |
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6 | * Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de) |
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7 | * |
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8 | * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany |
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9 | * |
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10 | * This program is distributed in the hope that it will be useful, |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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13 | * |
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14 | * |
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15 | * COPYRIGHT (c) 1998. |
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16 | * On-Line Applications Research Corporation (OAR). |
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17 | * Copyright assigned to U.S. Government, 1994. |
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18 | * |
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19 | * The license and distribution terms for this file may be |
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20 | * found in the file LICENSE in this distribution or at |
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21 | * http://www.OARcorp.com/rtems/license.html. |
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22 | * |
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23 | * $Id$ |
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24 | */ |
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25 | |
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26 | #ifndef __gensh1_h |
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27 | #define __gensh1_h |
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28 | |
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29 | #ifdef __cplusplus |
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30 | extern "C" { |
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31 | #endif |
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32 | |
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33 | #define CPU_CONSOLE_DEVNAME "/dev/null" |
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34 | |
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35 | |
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36 | #include <rtems.h> |
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37 | #include <clockdrv.h> |
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38 | #include <sh/null.h> |
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39 | #include <console.h> |
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40 | |
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41 | /* |
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42 | * Define the time limits for RTEMS Test Suite test durations. |
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43 | * Long test and short test duration limits are provided. These |
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44 | * values are in seconds and need to be converted to ticks for the |
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45 | * application. |
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46 | * |
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47 | */ |
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48 | |
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49 | #define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */ |
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50 | #define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */ |
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51 | |
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52 | /* |
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53 | * Stuff for Time Test 27 |
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54 | */ |
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55 | |
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56 | #define MUST_WAIT_FOR_INTERRUPT 0 |
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57 | |
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58 | #define Install_tm27_vector( handler ) \ |
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59 | { \ |
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60 | rtems_isr_entry ignored ; \ |
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61 | rtems_interrupt_catch( (handler), 0, &ignored ) ; \ |
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62 | } |
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63 | |
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64 | #define Cause_tm27_intr() |
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65 | |
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66 | #define Clear_tm27_intr() |
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67 | |
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68 | #define Lower_tm27_intr() |
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69 | |
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70 | /* Constants */ |
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71 | #ifndef MHZ |
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72 | #error Missing MHZ |
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73 | #endif |
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74 | |
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75 | /* |
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76 | * Simple spin delay in microsecond units for device drivers. |
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77 | * This is very dependent on the clock speed of the target. |
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78 | * |
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79 | * Since we don't have a real time clock, this is a very rough |
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80 | * approximation, assuming that each cycle of the delay loop takes |
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81 | * approx. 4 machine cycles. |
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82 | * |
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83 | * e.g.: MHZ = 20 => 5e-8 secs per instruction |
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84 | * => 4 * 5e-8 secs per delay loop |
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85 | */ |
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86 | |
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87 | #define delay( microseconds ) \ |
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88 | { register unsigned int _delay = (microseconds) * (MHZ / 4 ); \ |
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89 | asm volatile ( \ |
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90 | "0: add #-1,%0\n \ |
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91 | nop\n \ |
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92 | cmp/pl %0\n \ |
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93 | bt 0b\ |
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94 | nop" \ |
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95 | :: "r" (_delay) ); \ |
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96 | } |
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97 | |
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98 | /* |
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99 | * For backward compatibility only. |
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100 | * Do not rely on them being present in future |
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101 | */ |
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102 | #define CPU_delay( microseconds ) delay( microseconds ) |
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103 | #define sh_delay( microseconds ) delay( microseconds ) |
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104 | |
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105 | /* |
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106 | * Defined in the linker script 'linkcmds' |
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107 | */ |
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108 | |
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109 | extern unsigned32 HeapStart ; |
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110 | extern unsigned32 HeapEnd ; |
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111 | extern unsigned32 WorkSpaceStart ; |
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112 | extern unsigned32 WorkSpaceEnd ; |
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113 | |
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114 | extern void *CPU_Interrupt_stack_low ; |
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115 | extern void *CPU_Interrupt_stack_high ; |
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116 | |
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117 | |
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118 | /* miscellaneous stuff assumed to exist */ |
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119 | |
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120 | extern rtems_configuration_table BSP_Configuration; |
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121 | |
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122 | extern void bsp_cleanup( void ); |
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123 | |
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124 | /* |
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125 | * Device Driver Table Entries |
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126 | */ |
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127 | |
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128 | /* |
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129 | * We redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console |
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130 | */ |
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131 | #if defined(CONSOLE_DRIVER_TABLE_ENTRY) |
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132 | #warning Overwriting CONSOLE_DRIVER_TABLE_ENTRY |
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133 | #undef CONSOLE_DRIVER_TABLE_ENTRY |
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134 | #endif |
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135 | |
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136 | #define CONSOLE_DRIVER_TABLE_ENTRY \ |
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137 | DEVNULL_DRIVER_TABLE_ENTRY, \ |
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138 | { console_initialize, console_open, console_close, \ |
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139 | console_read, console_write, console_control } |
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140 | |
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141 | /* |
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142 | * NOTE: Use the standard Clock driver entry |
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143 | */ |
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144 | |
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145 | /* |
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146 | * FIXME: Should this go to libcpu/sh/sh7032 ? |
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147 | */ |
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148 | #if 0 |
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149 | /* functions */ |
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150 | sh_isr_entry set_vector( /* returns old vector */ |
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151 | rtems_isr_entry handler, /* isr routine */ |
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152 | rtems_vector_number vector, /* vector number */ |
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153 | int type /* RTEMS or RAW intr */ |
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154 | ); |
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155 | #endif |
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156 | |
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157 | #ifdef __cplusplus |
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158 | } |
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159 | #endif |
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160 | |
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161 | #endif |
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162 | /* end of include file */ |
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