1 | /*
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2 | * TOPPERS/JSP Kernel
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3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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4 | * Just Standard Profile Kernel
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5 | *
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6 | * Copyright (C) 2006-2010 by Witz Corporation, JAPAN
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7 | *
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8 | * The above copyright holders grant permission gratis to use,
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9 | * duplicate, modify, or redistribute (hereafter called use) this
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10 | * software (including the one made by modifying this software),
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11 | * provided that the following four conditions (1) through (4) are
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12 | * satisfied.
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13 | *
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14 | * (1) When this software is used in the form of source code, the above
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15 | * copyright notice, this use conditions, and the disclaimer shown
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16 | * below must be retained in the source code without modification.
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17 | *
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18 | * (2) When this software is redistributed in the forms usable for the
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19 | * development of other software, such as in library form, the above
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20 | * copyright notice, this use conditions, and the disclaimer shown
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21 | * below must be shown without modification in the document provided
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22 | * with the redistributed software, such as the user manual.
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23 | *
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24 | * (3) When this software is redistributed in the forms unusable for the
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25 | * development of other software, such as the case when the software
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26 | * is embedded in a piece of equipment, either of the following two
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27 | * conditions must be satisfied:
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28 | *
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29 | * (a) The above copyright notice, this use conditions, and the
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30 | * disclaimer shown below must be shown without modification in
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31 | * the document provided with the redistributed software, such as
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32 | * the user manual.
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33 | *
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34 | * (b) How the software is to be redistributed must be reported to the
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35 | * TOPPERS Project according to the procedure described
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36 | * separately.
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37 | *
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38 | * (4) The above copyright holders and the TOPPERS Project are exempt
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39 | * from responsibility for any type of damage directly or indirectly
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40 | * caused from the use of this software and are indemnified by any
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41 | * users or end users of this software from any and all causes of
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42 | * action whatsoever.
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43 | *
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44 | * THIS SOFTWARE IS PROVIDED "AS IS." THE ABOVE COPYRIGHT HOLDERS AND
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45 | * THE TOPPERS PROJECT DISCLAIM ANY EXPRESS OR IMPLIED WARRANTIES,
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46 | * INCLUDING, BUT NOT LIMITED TO, ITS APPLICABILITY TO A PARTICULAR
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47 | * PURPOSE. IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS AND THE
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48 | * TOPPERS PROJECT BE LIABLE FOR ANY TYPE OF DAMAGE DIRECTLY OR
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49 | * INDIRECTLY CAUSED FROM THE USE OF THIS SOFTWARE.
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50 | *
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51 | * ä¸è¨è使¨©è
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52 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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53 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»
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54 | * åé
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55 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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56 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®è使¨©
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57 | * 表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼ã¹
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58 | * ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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59 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ç¨
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60 | * ã§ããå½¢ã§åé
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61 | å¸ããå ´åã«ã¯ï¼åé
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62 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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63 | ã
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64 | * ãã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è使¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿
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65 | * 証è¦å®ãæ²è¼ãããã¨ï¼
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66 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ç¨
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67 | * ã§ããªãå½¢ã§åé
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68 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºãããã¨ï¼
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69 | * (a) åé
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70 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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71 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½
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72 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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73 | * (b) åé
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74 | å¸ã®å½¢æ
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75 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«å ±
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76 | * åãããã¨ï¼
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77 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæå®³
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78 | * ãããï¼ä¸è¨è使¨©è
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79 | ããã³TOPPERSããã¸ã§ã¯ããå
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80 | 責ãããã¨ï¼ã¾ãï¼
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81 | * æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãçç±ã«åºã¥
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82 | * ãè«æ±ãããï¼ä¸è¨è使¨©è
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83 | ããã³TOPPERSããã¸ã§ã¯ããå
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84 | 責ãããã¨ï¼
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85 | *
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86 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨è使¨©è
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87 | ãã
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88 | * ã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®çã«å¯¾ã
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89 | * ãé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨
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90 | * ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæå®³ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè²
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91 | * ããªãï¼
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92 | *
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93 | * @(#) $Id: cpu_config.c,v 1.1 2006/04/10 08:19:25 honda Exp $
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94 | */
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95 |
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96 | /*
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97 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼TLCS-900L1ç¨ï¼
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98 | */
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99 |
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100 | #include "jsp_kernel.h"
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101 | #include "check.h"
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102 | #include "task.h"
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103 |
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104 | /*
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105 | * å²è¾¼ã¿/CPUä¾å¤ãã¹ãã«ã¦ã³ã¿
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106 | */
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107 | UINT intcnt;
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108 |
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109 | /*
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110 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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111 | */
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112 | #ifdef SUPPORT_CHG_IPM
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113 | UH task_intmask;
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114 | #endif /* SUPPORT_CHG_IPM */
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115 |
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116 | /*
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117 | * éã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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118 | */
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119 | UH int_intmask;
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120 |
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121 | /*
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122 | * ããã»ããµä¾åã®åæå
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123 | */
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124 | void
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125 | cpu_initialize()
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126 | {
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127 | /* å²è¾¼ã¿ãã¹ãã«ã¦ã³ãåæå(å²è¾¼ã¿ã³ã³ããã¹ã) */
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128 | intcnt = 1;
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129 |
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130 | /*
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131 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯ã®åæå
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132 | */
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133 | #ifdef SUPPORT_CHG_IPM
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134 | task_intmask = 0x0000;
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135 | #endif /* SUPPORT_CHG_IPM */
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136 |
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137 | }
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138 |
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139 | /*
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140 | * ããã»ããµä¾åã®çµäºå¦ç
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141 | */
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142 | void
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143 | cpu_terminate()
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144 | {
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145 | }
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146 |
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147 | #ifdef SUPPORT_CHG_IPM
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148 |
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149 | /*
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150 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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151 | *
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152 | * chg_ipm ã使ã£ã¦ IPM ã 7ï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ï¼ã«å¤æ´
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153 | * ãããã¨ã¯ã§ããªãï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ãããå ´åã«ã¯ï¼
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154 | * loc_cpu ã«ããCPUããã¯ç¶æ
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155 | ã«ããã°ããï¼
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156 | * IPM ã 0 以å¤ã®æã«ãï¼ã¿ã¹ã¯ãã£ã¹ãããã¯ä¿çãããªãï¼IPM ã¯ï¼
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157 | * ã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ï¼æ°ããå®è¡ç¶æ
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158 | ã«ãªã£ãã¿ã¹ã¯ã¸å¼ãç¶ã
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159 | * ããï¼ãã®ããï¼ã¿ã¹ã¯ãå®è¡ä¸ã«ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ã夿´ã
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160 | * ããå ´åãããï¼JSPã«ã¼ãã«ã§ã¯ï¼IPM ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ã
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161 | * ã³ã«ãã£ã¦ãèµ·ããã®ã§ï¼ããã«ãã£ã¦æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨
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162 | * æãããï¼IPM ã®å¤ã«ãã£ã¦ã¿ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ï¼
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163 | * dis_dsp ãä½µç¨ããã°ããï¼
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164 | */
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165 | SYSCALL ER
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166 | chg_ipm(IPM ipm)
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167 | {
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168 | ER ercd;
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169 |
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170 | LOG_CHG_IPM_ENTER(ipm);
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171 | CHECK_TSKCTX_UNL();
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172 | CHECK_PAR(0 <= ipm && ipm <= 6);
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173 |
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174 | t_lock_cpu();
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175 | task_intmask = (ipm << 12);
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176 | ercd = E_OK;
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177 | t_unlock_cpu();
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178 |
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179 | exit:
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180 | LOG_CHG_IPM_LEAVE(ercd);
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181 | return(ercd);
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182 | }
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183 |
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184 | /*
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185 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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186 | §
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187 | */
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188 | SYSCALL ER
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189 | get_ipm(IPM *p_ipm)
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190 | {
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191 | ER ercd;
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192 |
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193 | LOG_GET_IPM_ENTER(p_ipm);
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194 | CHECK_TSKCTX_UNL();
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195 |
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196 | t_lock_cpu();
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197 | *p_ipm = (task_intmask >> 12);
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198 | ercd = E_OK;
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199 | t_unlock_cpu();
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200 |
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201 | exit:
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202 | LOG_GET_IPM_LEAVE(ercd, *p_ipm);
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203 | return(ercd);
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204 | }
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205 |
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206 | #endif /* SUPPORT_CHG_IPM */
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