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/*
* test_rpmsg_omx
*
* user space testing tool for the rpmsg_omx driver
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
* Ohad Ben-Cohen <ohad@wizery.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/eventfd.h>
#include "../include/linux/rpmsg_omx.h"
static pthread_t listener;
static int omxfd;
static int die_now_fd;
static void *listener_cb(void *arg)
{
fd_set rfds;
struct timeval tv;
int ret = 0, maxfd;
char buf[512];
do {
/* Wait for OMX messages or self die_now notification */
FD_ZERO(&rfds);
FD_SET(omxfd, &rfds);
FD_SET(die_now_fd, &rfds);
maxfd = (die_now_fd > omxfd ? die_now_fd : omxfd) + 1;
ret = select(maxfd, &rfds, NULL, NULL, NULL);
if (ret == -1) {
perror("select()");
break;
}
if (FD_ISSET(omxfd, &rfds)) {
ret = read(omxfd, buf, sizeof(buf));
if (ret < 0) {
perror("Can't connect to OMX instance");
break;
}
printf("RX: %s\n", buf);
}
if (FD_ISSET(die_now_fd, &rfds)) {
printf("Need to die!\n");
break;
}
} while (1);
return (void *)ret;
}
int send_messages(void)
{
const char *msg = "Hello there!";
int ret, i;
/* blather */
for (i = 0; i < 10; i++) {
ret = write(omxfd, msg, strlen(msg) + 1);
if (ret < 0) {
perror("Can't connect to OMX instance");
return -1;
}
printf("TX: %s\n", msg);
sleep(5);
}
return i;
}
int main(void)
{
int ret;
uint64_t die_event = 1;
ssize_t s;
struct omx_conn_req connreq = { .name = "OMX" };
/* open the first OMX device */
omxfd = open("/dev/rpmsg-omx0", O_RDWR);
if (omxfd < 0) {
perror("Can't open OMX device");
return 1;
}
printf("Connecting to %s\n", connreq.name);
/* connect to an h264_decode instance */
ret = ioctl(omxfd, OMX_IOCCONNECT, &connreq);
if (ret < 0) {
perror("Can't connect to OMX instance");
return 1;
}
printf("Connected!\n", connreq.name);
die_now_fd = eventfd(0, 0);
if (die_now_fd < 0) {
perror("eventfd failed");
return 1;
}
ret = pthread_create(&listener, NULL, listener_cb, NULL);
if (ret) {
printf("can't spawn thread: %s\n", strerror(ret));
return 1;
}
ret = send_messages();
if (ret < 0)
return 1;
/* terminate connection and destroy OMX instance */
ret = close(omxfd);
if (ret < 0) {
perror("Can't close OMX fd ??");
return 1;
}
s = write(die_now_fd, &die_event, sizeof(uint64_t));
if (s != sizeof(uint64_t)) {
printf("failed to write die_now event\n");
return 1;
}
ret = pthread_join(listener, NULL);
if (ret) {
printf("can't join thread: %s\n", strerror(ret));
return 1;
}
printf("Bye!\n");
return 0;
}
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