FreeCalypso > hg > freecalypso-citrine

annotate nucleus/mbs.c @ 9:b80f0c5016ee

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L1/cfile: new code compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 09 Jun 2016 06:28:19 +0000
parents 75a11d740a02
children
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1 /*************************************************************************/
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2 /* */
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3 /* Copyright Mentor Graphics Corporation 2002 */
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4 /* All Rights Reserved. */
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5 /* */
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
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8 /* SUBJECT TO LICENSE TERMS. */
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9 /* */
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10 /*************************************************************************/
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11
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12 /*************************************************************************/
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13 /* */
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14 /* FILE NAME VERSION */
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15 /* */
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16 /* mbs.c Nucleus PLUS 1.14 */
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17 /* */
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18 /* COMPONENT */
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19 /* */
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20 /* MB - Mailbox Management */
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21 /* */
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22 /* DESCRIPTION */
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23 /* */
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24 /* This file contains the core routines for the Mailbox management */
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25 /* component. */
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26 /* */
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27 /* DATA STRUCTURES */
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28 /* */
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29 /* None */
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30 /* */
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31 /* FUNCTIONS */
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32 /* */
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33 /* MBS_Reset_Mailbox Reset a mailbox */
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34 /* MBS_Broadcast_To_Mailbox Broadcast a mailbox message */
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35 /* */
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36 /* DEPENDENCIES */
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37 /* */
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38 /* cs_extr.h Common Service functions */
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39 /* tc_extr.h Thread Control functions */
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40 /* mb_extr.h Mailbox functions */
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41 /* hi_extr.h History functions */
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42 /* */
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43 /* HISTORY */
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44 /* */
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45 /* DATE REMARKS */
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46 /* */
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47 /* 03-01-1994 Initial version of supplemental */
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48 /* mailbox service file, */
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49 /* version 1.1 */
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50 /* */
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51 /* 03-18-1994 Verified version 1.1 */
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52 /* 04-17-1996 updated to version 1.2 */
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53 /* 03-24-1998 Released version 1.3 */
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54 /* 03-26-1999 Released 1.11m (new release */
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55 /* numbering scheme) */
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56 /* 04-23-2001 Fixed problem with resuming task in */
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57 /* MBS_Broadcast_To_Mailbox */
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58 /* 04-17-2002 Released version 1.13m */
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59 /* 11-07-2002 Released version 1.14 */
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60 /*************************************************************************/
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61 #define NU_SOURCE_FILE
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62
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63
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64 #include "cs_extr.h" /* Common service functions */
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65 #include "tc_extr.h" /* Thread control functions */
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66 #include "mb_extr.h" /* Mailbox functions */
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67 #include "hi_extr.h" /* History functions */
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68 #include "profiler.h" /* ProView interface */
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69
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70
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71 /* Define internal component function prototypes. */
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72
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73 VOID MBC_Cleanup(VOID *information);
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74
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75
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76 /*************************************************************************/
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77 /* */
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78 /* FUNCTION */
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79 /* */
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80 /* MBS_Reset_Mailbox */
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81 /* */
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82 /* DESCRIPTION */
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83 /* */
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84 /* This function resets a mailbox back to the initial state. Any */
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85 /* message in the mailbox is discarded. Also, all tasks suspended */
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86 /* on the mailbox are resumed with the reset completion status. */
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87 /* */
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88 /* CALLED BY */
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89 /* */
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90 /* Application */
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91 /* MBSE_Reset_Mailbox Error checking shell */
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92 /* */
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93 /* CALLS */
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94 /* */
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95 /* [HIC_Make_History_Entry] Make entry in history log */
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96 /* TCC_Resume_Task Resume a suspended task */
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97 /* [TCT_Check_Stack] Stack checking function */
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98 /* TCT_Control_To_System Transfer control to system */
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99 /* TCT_System_Protect Protect mailbox */
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100 /* TCT_Unprotect Release protection */
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101 /* */
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102 /* INPUTS */
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103 /* */
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104 /* mailbox_ptr Mailbox control block pointer*/
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105 /* */
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106 /* OUTPUTS */
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107 /* */
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108 /* NU_SUCCESS */
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109 /* */
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110 /* HISTORY */
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111 /* */
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112 /* NAME DATE REMARKS */
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parents:
diff changeset
113 /* */
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parents:
diff changeset
114 /* 03-01-1993 Created initial version 1.0 */
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parents:
diff changeset
115 /* 04-19-1993 Verified version 1.0 */
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parents:
diff changeset
116 /* 03-01-1994 Changed function interface to */
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parents:
diff changeset
117 /* match the prototype, added */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 /* register variable logic, */
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parents:
diff changeset
119 /* optimized protection logic, */
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parents:
diff changeset
120 /* resulting in version 1.1 */
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parents:
diff changeset
121 /* */
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parents:
diff changeset
122 /* 03-18-1994 Verified version 1.1 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 /* */
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parents:
diff changeset
124 /*************************************************************************/
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parents:
diff changeset
125 STATUS MBS_Reset_Mailbox(NU_MAILBOX *mailbox_ptr)
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parents:
diff changeset
126 {
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parents:
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127
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parents:
diff changeset
128 R1 MB_MCB *mailbox; /* Mailbox control block ptr */
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parents:
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129 R2 MB_SUSPEND *suspend_ptr; /* Suspend block pointer */
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parents:
diff changeset
130 MB_SUSPEND *next_ptr; /* Next suspend block pointer*/
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parents:
diff changeset
131 STATUS preempt; /* Status for resume call */
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diff changeset
132 NU_SUPERV_USER_VARIABLES
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parents:
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133
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parents:
diff changeset
134 /* Switch to supervisor mode */
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parents:
diff changeset
135 NU_SUPERVISOR_MODE();
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parents:
diff changeset
136
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parents:
diff changeset
137 /* Move input mailbox pointer into internal pointer. */
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parents:
diff changeset
138 mailbox = (MB_MCB *) mailbox_ptr;
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parents:
diff changeset
139
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parents:
diff changeset
140
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parents:
diff changeset
141 #ifdef NU_ENABLE_STACK_CHECK
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parents:
diff changeset
142
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parents:
diff changeset
143 /* Call stack checking function to check for an overflow condition. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 TCT_Check_Stack();
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parents:
diff changeset
145
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 #endif
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parents:
diff changeset
147
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 #ifdef NU_ENABLE_HISTORY
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parents:
diff changeset
149
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parents:
diff changeset
150 /* Make an entry that corresponds to this function in the system history
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 log. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 HIC_Make_History_Entry(NU_RESET_MAILBOX_ID, (UNSIGNED) mailbox,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 (UNSIGNED) 0, (UNSIGNED) 0);
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parents:
diff changeset
154
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parents:
diff changeset
155 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 /* Protect against access to the mailbox. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 TCT_System_Protect();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 /* Pickup the suspended task pointer list. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 suspend_ptr = mailbox -> mb_suspension_list;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162
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parents:
diff changeset
163 /* Walk the chain task(s) currently suspended on the mailbox. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 preempt = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 while (suspend_ptr)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 /* Resume the suspended task. Insure that the status returned is
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 NU_MAILBOX_RESET. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 suspend_ptr -> mb_return_status = NU_MAILBOX_RESET;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 /* Point to the next suspend structure in the link. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 next_ptr = (MB_SUSPEND *) (suspend_ptr -> mb_suspend_link.cs_next);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 /* Resume the specified task. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 preempt = preempt |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 TCC_Resume_Task((NU_TASK *) suspend_ptr -> mb_suspended_task,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 NU_MAILBOX_SUSPEND);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 /* Determine if the next is the same as the head pointer. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 if (next_ptr == mailbox -> mb_suspension_list)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 /* Clear the suspension pointer to signal the end of the list
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 traversal. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 suspend_ptr = NU_NULL;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 /* Position the suspend pointer to the next suspend block. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 suspend_ptr = next_ptr;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 /* Initialize the mailbox. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 mailbox -> mb_message_present = NU_FALSE;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 mailbox -> mb_tasks_waiting = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 mailbox -> mb_suspension_list = NU_NULL;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 #ifdef INCLUDE_PROVIEW
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 _RTProf_DumpMailBox(RT_PROF_RESET_MAILBOX,mailbox,RT_PROF_OK);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 #endif /* INCLUDE_PROVIEW */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 /* Determine if preemption needs to occur. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 if (preempt)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 /* Transfer control to system to facilitate preemption. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 TCT_Control_To_System();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 /* Release protection. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 TCT_Unprotect();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 /* Return to user mode */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 NU_USER_MODE();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 /* Return a successful completion. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 return(NU_SUCCESS);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 /*************************************************************************/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 /* FUNCTION */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 /* */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 /* MBS_Broadcast_To_Mailbox */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 /* DESCRIPTION */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 /* This function sends a message to all tasks currently waiting for */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 /* a message from the mailbox. If no tasks are waiting, this */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 /* service behaves like a normal send message. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 /* CALLED BY */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 /* Application */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 /* MBSE_Broadcast_To_Mailbox Broadcast to a mailbox */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 /* CALLS */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 /* CSC_Place_On_List Place on suspend list */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 /* CSC_Priority_Place_On_List Place on priority list */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 /* CSC_Remove_From_List Remove from suspend list */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 /* [HIC_Make_History_Entry] Make entry in history log */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 /* TCC_Resume_Task Resume a suspended task */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 /* TCC_Suspend_Task Suspend calling task */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 /* TCC_Task_Priority Priority of specified task */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 /* [TCT_Check_Stack] Stack checking function */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 /* TCT_Control_To_System Transfer control to system */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 /* TCT_Current_Thread Pickup current thread pointer*/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 /* TCT_System_Protect Protect mailbox */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 /* TCT_Unprotect Release protection */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 /* INPUTS */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 /* mailbox_ptr Mailbox control block pointer*/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 /* message Pointer to message to send */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 /* suspend Suspension option if full */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 /* OUTPUTS */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 /* NU_SUCCESS If service is successful */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 /* NU_MAILBOX_FULL If mailbox is currently full */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 /* NU_TIMEOUT If timeout on service expires*/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 /* NU_MAILBOX_DELETED If mailbox is deleted during */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 /* suspension */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 /* NU_MAILBOX_RESET If mailbox is deleted during */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 /* suspension */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 /* */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 /* HISTORY */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 /* DATE REMARKS */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 /* 03-01-1993 Created initial version 1.0 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 /* 04-19-1993 Verified version 1.0 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 /* 03-01-1994 Changed function interface to */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 /* match the prototype, added */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 /* register variable logic, */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 /* optimized protection logic, */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 /* resulting in version 1.1 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 /* */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 /* 03-18-1994 Verified version 1.1 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 /* */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 /*************************************************************************/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 STATUS MBS_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message,
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 UNSIGNED suspend)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 R1 MB_MCB *mailbox; /* Mailbox control block ptr */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 MB_SUSPEND suspend_block; /* Allocate suspension block */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 R2 MB_SUSPEND *suspend_ptr; /* Pointer to suspend block */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 MB_SUSPEND *suspend_head; /* Pointer to suspend head */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 MB_SUSPEND *next_suspend_ptr; /* Get before restarting task*/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 STATUS preempt; /* Preemption flag */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 R3 UNSIGNED *source_ptr; /* Pointer to source */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292 R4 UNSIGNED *destination_ptr; /* Pointer to destination */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 TC_TCB *task; /* Task pointer */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 STATUS status; /* Completion status */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 NU_SUPERV_USER_VARIABLES
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 /* Switch to supervisor mode */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 NU_SUPERVISOR_MODE();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 /* Move input mailbox pointer into internal pointer. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 mailbox = (MB_MCB *) mailbox_ptr;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 #ifdef NU_ENABLE_STACK_CHECK
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 /* Call stack checking function to check for an overflow condition. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 TCT_Check_Stack();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 #ifdef NU_ENABLE_HISTORY
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 /* Make an entry that corresponds to this function in the system history
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 log. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 HIC_Make_History_Entry(NU_BROADCAST_TO_MAILBOX_ID, (UNSIGNED) mailbox,
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 (UNSIGNED) message, (UNSIGNED) suspend);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 /* Initialize the status as successful. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 status = NU_SUCCESS;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 /* Protect against simultaneous access to the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 TCT_System_Protect();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 /* Determine if the mailbox is empty or full. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 if (mailbox -> mb_message_present)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 /* Mailbox already has a message. Determine if suspension is
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 required. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 if (suspend)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 /* Suspension is requested. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 /* Increment the number of tasks suspended on the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 mailbox -> mb_tasks_waiting++;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 #ifdef INCLUDE_PROVIEW
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 _RTProf_DumpMailBox(RT_PROF_BROADCAST_TO_MAILBOX,mailbox,RT_PROF_WAIT);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 #endif /* INCLUDE_PROVIEW */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 /* Setup the suspend block and suspend the calling task. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 suspend_ptr = &suspend_block;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 suspend_ptr -> mb_mailbox = mailbox;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 suspend_ptr -> mb_suspend_link.cs_next = NU_NULL;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348 suspend_ptr -> mb_suspend_link.cs_previous = NU_NULL;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349 suspend_ptr -> mb_message_area = (UNSIGNED *) message;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 task = (TC_TCB *) TCT_Current_Thread();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351 suspend_ptr -> mb_suspended_task = task;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353 /* Determine if priority or FIFO suspension is associated with the
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 if (mailbox -> mb_fifo_suspend)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358 /* FIFO suspension is required. Link the suspend block into
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 the list of suspended tasks on this mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360 CSC_Place_On_List((CS_NODE **) &(mailbox ->mb_suspension_list),
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361 &(suspend_ptr -> mb_suspend_link));
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 else
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 /* Get the priority of the current thread so the suspend block
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 can be placed in the appropriate place. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368 suspend_ptr -> mb_suspend_link.cs_priority =
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369 TCC_Task_Priority(task);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 CSC_Priority_Place_On_List((CS_NODE **)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372 &(mailbox -> mb_suspension_list),
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373 &(suspend_ptr -> mb_suspend_link));
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376 /* Finally, suspend the calling task. Note that the suspension call
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377 automatically clears the protection on the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
378 TCC_Suspend_Task((NU_TASK *) task, NU_MAILBOX_SUSPEND,
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
379 MBC_Cleanup, suspend_ptr, suspend);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
380
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
381 /* Pickup the return status. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
382 status = suspend_ptr -> mb_return_status;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
383 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
384 else
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
385 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
386
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
387 /* Return a status of NU_MAILBOX_FULL because there is no
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
388 room in the mailbox for the message. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
389 status = NU_MAILBOX_FULL;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
390
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
391 #ifdef INCLUDE_PROVIEW
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
392 _RTProf_DumpMailBox(RT_PROF_BROADCAST_TO_MAILBOX,mailbox,RT_PROF_FAIL);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
393 #endif /* INCLUDE_PROVIEW */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
394
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
395 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
396 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
397 else
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
398 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
399
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
400 /* Determine if a task is waiting on the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401 if (mailbox -> mb_suspension_list)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
402 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
403
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
404 #ifdef INCLUDE_PROVIEW
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
405 _RTProf_DumpMailBox(RT_PROF_BROADCAST_TO_MAILBOX,mailbox,RT_PROF_OK);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
406 #endif /* INCLUDE_PROVIEW */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
407
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
408 /* At least one task is waiting on mailbox for a message. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
409
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
410 /* Save off the suspension list and and then clear out the
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
411 mailbox suspension. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
412 suspend_head = mailbox -> mb_suspension_list;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
413 mailbox -> mb_suspension_list = NU_NULL;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
414
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
415 /* Loop to wakeup all of the tasks waiting on the mailbox for
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
416 a message. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
417 suspend_ptr = suspend_head;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
418 preempt = 0;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
419 do
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
420 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
421
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
422 /* Setup the source and destination pointers. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
423 source_ptr = (UNSIGNED *) message;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
424 destination_ptr = suspend_ptr -> mb_message_area;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
425
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
426 /* Copy the message directly into the waiting task's
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
427 destination. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
428 *destination_ptr = *source_ptr;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
429 *(destination_ptr + 1) = *(source_ptr + 1);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
430 *(destination_ptr + 2) = *(source_ptr + 2);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
431 *(destination_ptr + 3) = *(source_ptr + 3);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
432
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
433 /* Setup the appropriate return value. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
434 suspend_ptr -> mb_return_status = NU_SUCCESS;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
435
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
436 /* Move the suspend pointer along to the next block. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
437 next_suspend_ptr = (MB_SUSPEND *)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
438 suspend_ptr -> mb_suspend_link.cs_next;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
439
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
440 /* Wakeup each task waiting. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
441 preempt = preempt |
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
442 TCC_Resume_Task((NU_TASK *) suspend_ptr -> mb_suspended_task,
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
443 NU_MAILBOX_SUSPEND);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
444 suspend_ptr = next_suspend_ptr;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
445
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
446 } while (suspend_ptr != suspend_head);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
447
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
448 /* Clear the number of tasks waiting counter of the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
449 mailbox -> mb_tasks_waiting = 0;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
450
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
451 /* Determine if a preempt condition is present. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
452 if (preempt)
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
453
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
454 /* Transfer control to the system if the resumed task function
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
455 detects a preemption condition. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
456 TCT_Control_To_System();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
457 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
458 else
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
459 {
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
460
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
461 /* Mailbox is empty and no task is waiting. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
462
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
463 /* Setup the source and destination pointers. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
464 source_ptr = (UNSIGNED *) message;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
465 destination_ptr = &(mailbox -> mb_message_area[0]);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
466
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
467 /* Place the message in the mailbox. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
468 *destination_ptr = *source_ptr;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
469 *(destination_ptr + 1) = *(source_ptr + 1);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
470 *(destination_ptr + 2) = *(source_ptr + 2);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
471 *(destination_ptr + 3) = *(source_ptr + 3);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
472
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
473 /* Indicate that the mailbox has a message. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
474 mailbox -> mb_message_present = NU_TRUE;
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
475
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
476 #ifdef INCLUDE_PROVIEW
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
477 _RTProf_DumpMailBox(RT_PROF_BROADCAST_TO_MAILBOX,mailbox,RT_PROF_OK);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
478 #endif /* INCLUDE_PROVIEW */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
479 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
480 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
481
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
482 /* Release protection. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
483 TCT_Unprotect();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
484
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
485 /* Return to user mode */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
486 NU_USER_MODE();
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
487
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
488 /* Return the completion status. */
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
489 return(status);
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
490 }
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
491
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
492
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
493
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
494
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
495
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
496