1 /*
2 * Copyright (c) 2012-2014, 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 <GateHWSpinlock.h>
59 #include <_GateMP.h>
60 #include <_MultiProc.h>
61 #include <_MessageQ.h>
62 #include <_NameServer.h>
64 GateHWSpinlock_Config _GateHWSpinlock_cfgParams;
66 static LAD_ClientHandle ladHandle;
68 static void cleanup(int arg);
70 /** ============================================================================
71 * Functions
72 * ============================================================================
73 */
74 /* Function to start Ipc */
75 Int Ipc_start (Void)
76 {
77 MessageQ_Config msgqCfg;
78 MultiProc_Config mpCfg;
79 GateHWSpinlock_Config gateHWCfg;
80 Int32 status;
81 LAD_Status ladStatus;
82 UInt16 rprocId;
83 Int32 attachedAny = 0;
85 /* Catch ctrl-C, and cleanup: */
86 (void) signal(SIGINT, cleanup);
88 ladStatus = LAD_connect(&ladHandle);
89 if (ladStatus != LAD_SUCCESS) {
90 printf("Ipc_start: LAD_connect() failed: %d\n", ladStatus);
91 status = Ipc_E_FAIL;
92 goto exit;
93 }
95 /*
96 * Get MultiProc configuration from LAD and initialize local MultiProc
97 * config structure.
98 */
99 MultiProc_getConfig(&mpCfg);
100 _MultiProc_initCfg(&mpCfg);
102 status = NameServer_setup();
103 if (status >= 0) {
104 MessageQ_getConfig(&msgqCfg);
105 MessageQ_setup(&msgqCfg);
107 /* Now attach to all remote processors, assuming they are up. */
108 for (rprocId = 0; rprocId < MultiProc_getNumProcessors(); rprocId++) {
109 if (0 == rprocId) {
110 /* Skip host, which should always be 0th entry. */
111 continue;
112 }
113 status = MessageQ_attach(rprocId, NULL);
114 if (status == MessageQ_E_RESOURCE) {
115 continue;
116 }
117 if (status < 0) {
118 printf("Ipc_start: MessageQ_attach(%d) failed: %d\n",
119 rprocId, status);
120 status = Ipc_E_FAIL;
122 break;
123 }
124 else {
125 attachedAny = 1;
126 }
127 }
128 if (attachedAny) {
129 status = Ipc_S_SUCCESS;
130 }
131 }
132 else {
133 printf("Ipc_start: NameServer_setup() failed: %d\n", status);
134 status = Ipc_E_FAIL;
135 }
137 /* Start GateMP only if device has support */
138 #if defined(GATEMP_SUPPORT)
139 if (GateMP_isSetup()) {
140 /*
141 * Get HWSpinlock base address and size from LAD and
142 * initialize the local config structure.
143 */
144 GateHWSpinlock_getConfig(&gateHWCfg);
145 _GateHWSpinlock_cfgParams = gateHWCfg;
147 status = GateHWSpinlock_start();
148 if (status < 0) {
149 printf("Ipc_start: GateHWSpinlock_start failed: %d\n",
150 status);
151 status = Ipc_E_FAIL;
152 goto gatehwspinlockstart_fail;
153 }
154 else {
155 status = GateMP_start();
156 if (status < 0) {
157 printf("Ipc_start: GateMP_start failed: %d\n",
158 status);
159 status = Ipc_E_FAIL;
160 goto gatempstart_fail;
161 }
162 }
163 }
164 #endif
165 /* Success */
166 goto exit;
167 #if defined(GATEMP_SUPPORT)
168 gatempstart_fail:
169 GateHWSpinlock_stop();
170 gatehwspinlockstart_fail:
171 for (rprocId = rprocId - 1; (rprocId > 0) && (status >= 0); rprocId--) {
172 MessageQ_detach(rprocId);
173 }
174 #endif
176 exit:
177 return (status);
178 }
181 /* Function to stop Ipc */
182 Int Ipc_stop (Void)
183 {
184 Int32 status = Ipc_S_SUCCESS;
185 LAD_Status ladStatus;
186 UInt16 rprocId;
188 /* Now detach from all remote processors, assuming they are up. */
189 for (rprocId = 0;
190 (rprocId < MultiProc_getNumProcessors()) && (status >= 0);
191 rprocId++) {
192 if (0 == rprocId) {
193 /* Skip host, which should always be 0th entry. */
194 continue;
195 }
196 status = MessageQ_detach(rprocId);
197 if (status < 0) {
198 printf("Ipc_stop: MessageQ_detach(%d) failed: %d\n",
199 rprocId, status);
200 status = Ipc_E_FAIL;
201 goto exit;
202 }
203 }
205 status = MessageQ_destroy();
206 if (status < 0) {
207 printf("Ipc_stop: MessageQ_destroy() failed: %d\n", status);
208 status = Ipc_E_FAIL;
209 goto exit;
210 }
212 status = NameServer_destroy();
213 if (status < 0) {
214 printf("Ipc_stop: NameServer_destroy() failed: %d\n", status);
215 status = Ipc_E_FAIL;
216 goto exit;
217 }
219 ladStatus = LAD_disconnect(ladHandle);
220 if (ladStatus != LAD_SUCCESS) {
221 printf("LAD_disconnect() failed: %d\n", ladStatus);
222 status = Ipc_E_FAIL;
223 goto exit;
224 }
226 exit:
227 return (status);
228 }
230 static void cleanup(int arg)
231 {
232 printf("Ipc: Caught SIGINT, calling Ipc_stop...\n");
233 Ipc_stop();
234 exit(0);
235 }