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>
47 #include <Std.h>
49 /* Common IPC headers: */
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 = Ipc_S_SUCCESS;
77 LAD_Status ladStatus;
78 UInt16 rprocId;
80 /* Catch ctrl-C, and cleanup: */
81 (void) signal(SIGINT, cleanup);
83 ladStatus = LAD_connect(&ladHandle);
84 if (ladStatus != LAD_SUCCESS) {
85 printf("Ipc_start: LAD_connect() failed: %d\n", ladStatus);
86 status = Ipc_E_FAIL;
87 goto exit;
88 }
90 /* Setup and get MultiProc configuration from LAD */
91 MultiProc_getConfig(&mpCfg);
92 _MultiProc_cfg = mpCfg;
94 status = NameServer_setup();
95 if (status >= 0) {
96 MessageQ_getConfig(&msgqCfg);
97 MessageQ_setup(&msgqCfg);
99 /* Now attach to all remote processors, assuming they are up. */
100 for (rprocId = 0;
101 (rprocId < MultiProc_getNumProcessors()) && (status >= 0);
102 rprocId++) {
103 if (0 == rprocId) {
104 /* Skip host, which should always be 0th entry. */
105 continue;
106 }
107 status = MessageQ_attach (rprocId, NULL);
108 if (status < 0) {
109 printf("Ipc_start: MessageQ_attach(%d) failed: %d\n",
110 rprocId, status);
111 status = Ipc_E_FAIL;
112 }
113 }
114 }
115 else {
116 printf("Ipc_start: NameServer_setup() failed: %d\n", status);
117 status = Ipc_E_FAIL;
118 }
120 exit:
121 return (status);
122 }
125 /* Function to stop Ipc */
126 Int Ipc_stop (Void)
127 {
128 Int32 status = Ipc_S_SUCCESS;
129 LAD_Status ladStatus;
130 UInt16 rprocId;
132 /* Now detach from all remote processors, assuming they are up. */
133 for (rprocId = 0;
134 (rprocId < MultiProc_getNumProcessors()) && (status >= 0);
135 rprocId++) {
136 if (0 == rprocId) {
137 /* Skip host, which should always be 0th entry. */
138 continue;
139 }
140 status = MessageQ_detach(rprocId);
141 if (status < 0) {
142 printf("Ipc_stop: MessageQ_detach(%d) failed: %d\n",
143 rprocId, status);
144 status = Ipc_E_FAIL;
145 goto exit;
146 }
147 }
149 status = MessageQ_destroy();
150 if (status < 0) {
151 printf("Ipc_stop: MessageQ_destroy() failed: %d\n", status);
152 status = Ipc_E_FAIL;
153 goto exit;
154 }
156 status = NameServer_destroy();
157 if (status < 0) {
158 printf("Ipc_stop: NameServer_destroy() failed: %d\n", status);
159 status = Ipc_E_FAIL;
160 goto exit;
161 }
163 ladStatus = LAD_disconnect(ladHandle);
164 if (ladStatus != LAD_SUCCESS) {
165 printf("LAD_disconnect() failed: %d\n", ladStatus);
166 status = Ipc_E_FAIL;
167 goto exit;
168 }
170 exit:
171 return (status);
172 }
174 static void cleanup(int arg)
175 {
176 printf("Ipc: Caught SIGINT, calling Ipc_stop...\n");
177 Ipc_stop();
178 exit(0);
179 }