1 | /* bsp.h |
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2 | * |
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3 | * This include file contains all Papyrus board IO definitions. |
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4 | * |
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5 | * Author: Andrew Bray <andy@i-cubed.demon.co.uk> |
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6 | * |
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7 | * COPYRIGHT (c) 1995 by i-cubed ltd. |
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8 | * |
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9 | * To anyone who acknowledges that this file is provided "AS IS" |
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10 | * without any express or implied warranty: |
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11 | * permission to use, copy, modify, and distribute this file |
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12 | * for any purpose is hereby granted without fee, provided that |
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13 | * the above copyright notice and this notice appears in all |
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14 | * copies, and that the name of i-cubed limited not be used in |
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15 | * advertising or publicity pertaining to distribution of the |
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16 | * software without specific, written prior permission. |
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17 | * i-cubed limited makes no representations about the suitability |
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18 | * of this software for any purpose. |
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19 | * |
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20 | * Derived from c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h |
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21 | * |
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22 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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23 | * On-Line Applications Research Corporation (OAR). |
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24 | * All rights assigned to U.S. Government, 1994. |
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25 | * |
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26 | * This material may be reproduced by or for the U.S. Government pursuant |
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27 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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28 | * notice must appear in all copies of this file and its derivatives. |
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29 | * |
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30 | * $Id$ |
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31 | */ |
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32 | |
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33 | #ifndef __PAPYRUS_h |
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34 | #define __PAPYRUS_h |
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35 | |
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36 | #ifdef __cplusplus |
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37 | extern "C" { |
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38 | #endif |
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39 | |
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40 | #ifdef ASM |
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41 | /* Definition of where to store registers in alignment handler */ |
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42 | #define ALIGN_REGS 0x0140 |
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43 | |
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44 | #else |
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45 | #include <rtems.h> |
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46 | #include <console.h> |
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47 | |
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48 | /* |
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49 | * Define the time limits for RTEMS Test Suite test durations. |
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50 | * Long test and short test duration limits are provided. These |
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51 | * values are in seconds and need to be converted to ticks for the |
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52 | * application. |
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53 | * |
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54 | */ |
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55 | |
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56 | #define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */ |
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57 | #define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */ |
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58 | |
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59 | /* |
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60 | * Stuff for Time Test 27 |
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61 | */ |
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62 | |
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63 | #define MUST_WAIT_FOR_INTERRUPT 0 |
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64 | |
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65 | #define Install_tm27_vector( handler ) set_vector( (handler), PPC_IRQ_SCALL, 1 ) |
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66 | |
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67 | #define Cause_tm27_intr() asm volatile ("sc") |
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68 | |
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69 | #define Clear_tm27_intr() |
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70 | |
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71 | #define Lower_tm27_intr() |
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72 | |
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73 | /* |
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74 | * Simple spin delay in microsecond units for device drivers. |
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75 | * This is very dependent on the clock speed of the target. |
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76 | */ |
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77 | |
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78 | #define delay( microseconds ) \ |
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79 | { \ |
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80 | unsigned32 start, ticks, now; \ |
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81 | asm volatile ("mftblo %0" : "=r" (start)); \ |
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82 | ticks = (microseconds) * Cpu_table.clicks_per_usec; \ |
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83 | do \ |
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84 | asm volatile ("mftblo %0" : "=r" (now)); \ |
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85 | while (now - start < ticks); \ |
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86 | } |
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87 | |
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88 | /* Constants */ |
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89 | |
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90 | #define RAM_START 0 |
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91 | #define RAM_END 0x00200000 |
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92 | |
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93 | /* miscellaneous stuff assumed to exist */ |
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94 | |
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95 | extern rtems_configuration_table BSP_Configuration; /* owned by BSP */ |
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96 | extern rtems_cpu_table Cpu_table; /* owned by BSP */ |
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97 | |
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98 | /* |
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99 | * Device Driver Table Entries |
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100 | */ |
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101 | |
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102 | /* |
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103 | * NOTE: Use the standard Console driver entry |
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104 | */ |
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105 | |
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106 | /* |
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107 | * NOTE: Use the standard Clock driver entry |
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108 | */ |
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109 | |
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110 | /* |
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111 | * How many libio files we want |
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112 | */ |
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113 | |
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114 | #define BSP_LIBIO_MAX_FDS 20 |
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115 | |
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116 | /* functions */ |
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117 | |
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118 | void bsp_start( void ); |
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119 | void bsp_cleanup( void ); |
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120 | |
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121 | rtems_isr_entry set_vector( /* returns old vector */ |
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122 | rtems_isr_entry handler, /* isr routine */ |
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123 | rtems_vector_number vector, /* vector number */ |
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124 | int type /* RTEMS or RAW intr */ |
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125 | ); |
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126 | #endif /* ASM */ |
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127 | |
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128 | #ifdef __cplusplus |
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129 | } |
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130 | #endif |
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131 | |
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132 | #endif |
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133 | /* end of include file */ |
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