1 /*
2 * Copyright (c) 2012-2013, Texas Instruments Incorporated
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * * Neither the name of Texas Instruments Incorporated nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 /*!
33 * @file Ipc.c
34 *
35 * @brief Starts and stops user side Ipc
36 * All setup/destroy APIs on user side will be call from this
37 * module.
38 *
39 * @ver 0002
40 *
41 */
43 /* Standard headers */
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <signal.h>
48 /* Common IPC headers: */
49 #include <ti/ipc/Std.h>
50 #include <ti/ipc/Ipc.h>
51 #include <ti/ipc/NameServer.h>
53 /* User side headers */
54 #include <ladclient.h>
56 /* IPC startup/shutdown stuff: */
57 #include <ti/ipc/MultiProc.h>
58 #include <_MessageQ.h>
59 #include <_NameServer.h>
61 MultiProc_Config _MultiProc_cfg;
63 static LAD_ClientHandle ladHandle;
65 static void cleanup(int arg);
67 /** ============================================================================
68 * Functions
69 * ============================================================================
70 */
71 /* Function to start Ipc */
72 Int Ipc_start (Void)
73 {
74 MessageQ_Config msgqCfg;
75 MultiProc_Config mpCfg;
76 Int32 status;
77 LAD_Status ladStatus;
78 UInt16 rprocId;
79 Int32 attachedAny = 0;
81 /* Catch ctrl-C, and cleanup: */
82 (void) signal(SIGINT, cleanup);
84 ladStatus = LAD_connect(&ladHandle);
85 if (ladStatus != LAD_SUCCESS) {
86 printf("Ipc_start: LAD_connect() failed: %d\n", ladStatus);
87 status = Ipc_E_FAIL;
88 goto exit;
89 }
91 /* Setup and get MultiProc configuration from LAD */
92 MultiProc_getConfig(&mpCfg);
93 _MultiProc_cfg = mpCfg;
95 status = NameServer_setup();
96 if (status >= 0) {
97 MessageQ_getConfig(&msgqCfg);
98 MessageQ_setup(&msgqCfg);
100 /* Now attach to all remote processors, assuming they are up. */
101 for (rprocId = 0; rprocId < MultiProc_getNumProcessors(); rprocId++) {
102 if (0 == rprocId) {
103 /* Skip host, which should always be 0th entry. */
104 continue;
105 }
106 status = MessageQ_attach(rprocId, NULL);
107 if (status == MessageQ_E_RESOURCE) {
108 continue;
109 }
110 if (status < 0) {
111 printf("Ipc_start: MessageQ_attach(%d) failed: %d\n",
112 rprocId, status);
113 status = Ipc_E_FAIL;
115 break;
116 }
117 else {
118 attachedAny = 1;
119 }
120 }
121 if (attachedAny) {
122 status = Ipc_S_SUCCESS;
123 }
124 }
125 else {
126 printf("Ipc_start: NameServer_setup() failed: %d\n", status);
127 status = Ipc_E_FAIL;
128 }
130 exit:
131 return (status);
132 }
135 /* Function to stop Ipc */
136 Int Ipc_stop (Void)
137 {
138 Int32 status = Ipc_S_SUCCESS;
139 LAD_Status ladStatus;
140 UInt16 rprocId;
142 /* Now detach from all remote processors, assuming they are up. */
143 for (rprocId = 0;
144 (rprocId < MultiProc_getNumProcessors()) && (status >= 0);
145 rprocId++) {
146 if (0 == rprocId) {
147 /* Skip host, which should always be 0th entry. */
148 continue;
149 }
150 status = MessageQ_detach(rprocId);
151 if (status < 0) {
152 printf("Ipc_stop: MessageQ_detach(%d) failed: %d\n",
153 rprocId, status);
154 status = Ipc_E_FAIL;
155 goto exit;
156 }
157 }
159 status = MessageQ_destroy();
160 if (status < 0) {
161 printf("Ipc_stop: MessageQ_destroy() failed: %d\n", status);
162 status = Ipc_E_FAIL;
163 goto exit;
164 }
166 status = NameServer_destroy();
167 if (status < 0) {
168 printf("Ipc_stop: NameServer_destroy() failed: %d\n", status);
169 status = Ipc_E_FAIL;
170 goto exit;
171 }
173 ladStatus = LAD_disconnect(ladHandle);
174 if (ladStatus != LAD_SUCCESS) {
175 printf("LAD_disconnect() failed: %d\n", ladStatus);
176 status = Ipc_E_FAIL;
177 goto exit;
178 }
180 exit:
181 return (status);
182 }
184 static void cleanup(int arg)
185 {
186 printf("Ipc: Caught SIGINT, calling Ipc_stop...\n");
187 Ipc_stop();
188 exit(0);
189 }