FreeCalypso > hg > tcs211-l1-reconst

annotate gpf/INC/NUC/pi_defs.h @ 18:3f44bb6108b9

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README written for tcs211-l1-reconst
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 21 Oct 2015 03:48:05 +0000
parents 509db1a7b7b8
children
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1 /*************************************************************************/
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2 /* */
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3 /* Copyright (c) 1993-1996 Accelerated Technology, Inc. */
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4 /* */
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5 /* PROPRIETARY RIGHTS of Accelerated Technology are involved in the */
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6 /* subject matter of this material. All manufacturing, reproduction, */
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7 /* use, and sales rights pertaining to this subject matter are governed */
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8 /* by the license agreement. The recipient of this software implicitly */
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9 /* accepts the terms of the license. */
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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 /* */
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15 /* FILE NAME VERSION */
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16 /* */
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17 /* pi_defs.h PLUS 1.2 */
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18 /* */
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19 /* COMPONENT */
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20 /* */
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21 /* PI - Pipe Management */
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22 /* */
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23 /* DESCRIPTION */
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24 /* */
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25 /* This file contains data structure definitions and constants for */
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26 /* the message Pipe component. */
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27 /* */
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28 /* AUTHOR */
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29 /* */
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30 /* William E. Lamie, Accelerated Technology, Inc. */
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31 /* */
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32 /* DATA STRUCTURES */
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33 /* */
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34 /* PI_PCB Pipe control block */
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35 /* PI_SUSPEND Pipe suspension block */
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36 /* */
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37 /* FUNCTIONS */
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38 /* */
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39 /* None */
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40 /* */
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41 /* DEPENDENCIES */
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42 /* */
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43 /* cs_defs.h Common service definitions */
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44 /* tc_defs.h Thread Control definitions */
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45 /* */
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46 /* HISTORY */
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47 /* */
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48 /* NAME DATE REMARKS */
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49 /* */
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50 /* W. Lamie 03-01-1993 Created initial version 1.0 */
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51 /* D. Lamie 04-19-1993 Verified version 1.0 */
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52 /* W. Lamie 03-01-1994 Moved include files outside of */
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53 /* the file #ifndef to allow the */
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54 /* use of actual data structures, */
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55 /* removed protection structure, */
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56 /* put padding into structure, */
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57 /* resulting in version 1.1 */
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58 /* R. Pfaff - */
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59 /* D. Lamie 03-18-1994 Verified version 1.1 */
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60 /* M.Q. Qian 04-17-1996 updated to version 1.2 */
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61 /* */
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62 /*************************************************************************/
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63
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64 #include "cs_defs.h" /* Common service constants */
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65 #include "tc_defs.h" /* Thread control constants */
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66
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67
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68 /* Check to see if the file has been included already. */
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69
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70 #ifndef PI_DEFS
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71 #define PI_DEFS
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72
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73
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74 /* Define constants local to this component. */
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75
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76 #define PI_PIPE_ID 0x50495045UL
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77
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78
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79 /* Define the Pipe Control Block data type. */
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80
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81 typedef struct PI_PCB_STRUCT
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82 {
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83 CS_NODE pi_created; /* Node for linking to */
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84 /* created pipe list */
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85 UNSIGNED pi_id; /* Internal PCB ID */
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86 CHAR pi_name[NU_MAX_NAME]; /* Pipe name */
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87 DATA_ELEMENT pi_fixed_size; /* Fixed-size messages? */
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88 DATA_ELEMENT pi_fifo_suspend; /* Suspension type flag */
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89 #if PAD_2
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90 DATA_ELEMENT pi_padding[PAD_2];
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91 #endif
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92 UNSIGNED pi_pipe_size; /* Total size of pipe */
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93 UNSIGNED pi_messages; /* Messages in pipe */
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94 UNSIGNED pi_message_size; /* Size of each message */
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95 UNSIGNED pi_available; /* Available bytes */
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96 BYTE_PTR pi_start; /* Start of pipe area */
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97 BYTE_PTR pi_end; /* End of pipe area + 1 */
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98 BYTE_PTR pi_read; /* Read pointer */
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99 BYTE_PTR pi_write; /* Write pointer */
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100 UNSIGNED pi_tasks_waiting; /* Number of waiting tasks*/
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101 struct PI_SUSPEND_STRUCT
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102 *pi_urgent_list; /* Urgent message suspend */
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103 struct PI_SUSPEND_STRUCT
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104 *pi_suspension_list; /* Suspension list */
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105 } PI_PCB;
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106
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107
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108 /* Define the Pipe suspension structure. This structure is allocated off of
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109 the caller's stack. */
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110
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111 typedef struct PI_SUSPEND_STRUCT
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112 {
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113 CS_NODE pi_suspend_link; /* Link to suspend blocks */
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114 PI_PCB *pi_pipe; /* Pointer to the pipe */
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115 TC_TCB *pi_suspended_task; /* Task suspended */
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116 BYTE_PTR pi_message_area; /* Pointer to message area*/
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117 UNSIGNED pi_message_size; /* Message size requested */
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118 UNSIGNED pi_actual_size; /* Actual size of message */
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119 STATUS pi_return_status; /* Return status */
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120 } PI_SUSPEND;
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121
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122 #endif