annotate src/cs/services/tty/tty_env.c @ 181:e9674b5a00ed

targets/tangomdm.* added
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 04 Jan 2020 21:51:12 +0000
parents b6a5e36de839
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * @file tty_env.c
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * Coding of the Riviera Generic Functions,
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * except handle_message and handle_timer, which are
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * in tty_handle_message.c and tty_handle_timer.c
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 * @version 0.1
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 * History:
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 * Date Modification
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 * ------------------------------------
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 * 01/27/2003 Create
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tty/tty_i.h"
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 #include "rvm/rvm_priorities.h"
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 #include "tty/tty_env.h"
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 #include <string.h>
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 * Pointer on the structure gathering all the global variables
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 * used by TTY instance.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 T_TTY_ENV_CTRL_BLK *tty_env_ctrl_blk_p = NULL;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 /* External declaration */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 extern T_RV_RET tty_core(void);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 * Called by the RV manager to learn
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 * tty requirements in terms of memory, SWEs...
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 * @param swe_info Pointer to the structure to fill
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 * containing infos related to the tty SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * @return RVM_OK
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 T_RVM_RETURN tty_get_info(T_RVM_INFO_SWE * swe_info)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 /* TTY is a Type 4 SWE. */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 swe_info->swe_type = RVM_SWE_TYPE_4;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 memcpy(swe_info->type_info.type4.swe_name, "TTY", sizeof("TTY"));
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 swe_info->type_info.type4.swe_use_id = TTY_USE_ID;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 /* SWE info */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 swe_info->type_info.type4.stack_size = TTY_STACK_SIZE;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 swe_info->type_info.type4.priority = RVM_TTY_TASK_PRIORITY;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 swe_info->type_info.type4.version = BUILD_VERSION_NUMBER(0,1,0);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 /* Memory bank info */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 swe_info->type_info.type4.nb_mem_bank = 1;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 memcpy(swe_info->type_info.type4.mem_bank[0].bank_name, "TTY_PRIM", sizeof("TTY_PRIM"));
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 swe_info->type_info.type4.mem_bank[0].initial_params.size = TTY_MB_PRIM_SIZE;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 swe_info->type_info.type4.mem_bank[0].initial_params.watermark = TTY_MB_PRIM_WATERMARK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 * Linked SWE info.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 swe_info->type_info.type4.nb_linked_swe = 0;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 /* Set the return path: NOT USED. */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 swe_info->type_info.type4.return_path.callback_func = NULL;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 swe_info->type_info.type4.return_path.addr_id = 0;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 /* Generic functions */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 swe_info->type_info.type4.set_info = tty_set_info;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 swe_info->type_info.type4.init = tty_init;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 swe_info->type_info.type4.core = tty_core;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 swe_info->type_info.type4.stop = tty_stop;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 swe_info->type_info.type4.kill = tty_kill;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 return RVM_OK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 * Called by the RV manager to inform the tty SWE about
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 * addr_id, return path, mb_id and error function.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 * It is called only once.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 * @param addr_id Address ID of the TTY SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 * Used to send messages to the SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 * @param return_path Return path array of the linked SWEs.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 * @param bk_id_table Array of memory bank ids allocated to the SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 * @param call_back_error_ft Callback function to call in case of unrecoverable error.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 * @return RVM_MEMORY_ERR ou RVM_OK.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 T_RVM_RETURN tty_set_info ( T_RVF_G_ADDR_ID addr_id,
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 T_RV_RETURN_PATH return_path[],
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 T_RVF_MB_ID bk_id_table[],
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 T_RVM_CB_FUNC call_back_error_ft)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 /* Memory bank status (red, yellow, green). */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 T_RVF_MB_STATUS mb_status;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 /* Create instance gathering all the variable used by TTY instance */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 mb_status = rvf_get_buf(bk_id_table[0],
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 sizeof(T_TTY_ENV_CTRL_BLK),
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 (T_RVF_BUFFER**)&tty_env_ctrl_blk_p);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 if (mb_status == RVF_RED)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 TTY_SEND_TRACE("TTY: Error to get memory ",RV_TRACE_LEVEL_ERROR);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 return RVM_MEMORY_ERR;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 else if (mb_status == RVF_YELLOW)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 * The flag is yellow, there will soon be not enough memory anymore.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 TTY_SEND_TRACE("TTY: Getting short on memory ", RV_TRACE_LEVEL_WARNING);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 /* Store the initial State; default is IDLE. */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 tty_env_ctrl_blk_p->state = TTY_IDLE;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 /* Store the address ID. */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 tty_env_ctrl_blk_p->addr_id = addr_id;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 /* Store the pointer to the error function. */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 tty_env_ctrl_blk_p->error_ft = call_back_error_ft;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 * Store the mem bank id.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 * Memory bank ID (mb_id) can be retrieved later using rvf_get_mb_id function.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 tty_env_ctrl_blk_p->prim_mb_id = bk_id_table[0];
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 * Array return_path: Return path of linked SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 * If the linked SWE have an API based on messages, their return path given
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 * by the set_info function would be stored and used to communicate with them.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 * But since the linked SWE of TTY have an API based on functions, it is not
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 * necessary to store their return path.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 return RVM_OK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 * Called by the RV manager to initialize the
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 * tty SWE before creating the task and calling tty_start.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 * @return RVM_OK
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 T_RVM_RETURN tty_init (void)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 * TTY Global Initialization.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 return RVM_OK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 * Called by the RV manager to stop the tty SWE.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 * @return RVM_OK or RVM_INTERNAL_ERR
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 T_RVM_RETURN tty_stop (void)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * Here we should stop the activities of the SWE
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 * It is still possible to send messages to other SWE, to unregister for example.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 TTY_SEND_TRACE("TTY: stop called", RV_TRACE_LEVEL_DEBUG_LOW);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 return RVM_OK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 }
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 /**
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 * Called by the RV manager to kill the tty SWE,
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 * after the tty_stop function has been called.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 *
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 * @return RVM_OK
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 T_RVM_RETURN tty_kill (void)
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 {
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 /*
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 * Here we cannot send messages anymore. We only free the last
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 * used resources, like the control block buffer.
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 */
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 TTY_SEND_TRACE("TTY: kill called", RV_TRACE_LEVEL_DEBUG_LOW);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 rvf_free_buf(tty_env_ctrl_blk_p);
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 return RVM_OK;
b6a5e36de839 src/cs: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 }