1 /*
2 * Copyright (c) 2013-2015 Texas Instruments Incorporated - http://www.ti.com
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 MultiProcQ.c
34 *
35 * @brief MultiProc Linux implementation
36 */
38 /* Standard IPC header */
39 #include <ti/ipc/Std.h>
41 /* Module level headers */
42 #include <ti/ipc/MultiProc.h>
43 #include <_MultiProc.h>
45 #include <sys/types.h>
46 #include <string.h>
47 #include <stdio.h>
48 #include <unistd.h>
49 #include <assert.h>
51 #include <ladclient.h>
52 #include <_lad.h>
54 /* traces in this file are controlled via _MultiProc_verbose */
55 Bool _MultiProc_verbose = FALSE;
56 #define verbose _MultiProc_verbose
58 /* =============================================================================
59 * APIS
60 * =============================================================================
61 */
62 /* Function to get default configuration for the MultiProc module.
63 *
64 */
65 Void MultiProc_getConfig (MultiProc_Config * cfg)
66 {
67 Int status;
68 LAD_ClientHandle handle;
69 struct LAD_CommandObj cmd;
70 union LAD_ResponseObj rsp;
72 assert (cfg != NULL);
74 handle = LAD_findHandle();
76 if (handle == LAD_MAXNUMCLIENTS) {
77 PRINTVERBOSE1("MultiProc_getConfig: can't find connection to daemon "
78 "for pid %d\n", getpid())
79 return;
80 }
82 cmd.cmd = LAD_MULTIPROC_GETCONFIG;
83 cmd.clientId = handle;
85 if ((status = LAD_putCommand(&cmd)) != LAD_SUCCESS) {
86 PRINTVERBOSE1("MultiProc_getConfig: sending LAD command failed, "
87 "status=%d\n", status)
88 return;
89 }
91 if ((status = LAD_getResponse(handle, &rsp)) != LAD_SUCCESS) {
92 PRINTVERBOSE1("MultiProc_getConfig: no LAD response, status=%d\n",
93 status)
94 return;
95 }
96 status = rsp.multiprocGetConfig.status;
98 PRINTVERBOSE2("MultiProc_getConfig: got LAD response for client %d, "
99 "status=%d\n", handle, status)
101 memcpy(cfg, &rsp.multiprocGetConfig.cfg, sizeof(*cfg));
103 return;
104 }