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main.c
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/*
* Greybus Simulator
*
* Copyright 2014 Google Inc.
* Copyright 2014 Linaro Ltd.
*
* Provided under the three clause BSD license found in the LICENSE file.
*/
#include <ctype.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "gbsim.h"
#include "gbsim_usb.h"
int bbb_backend = 0;
int i2c_adapter = 0;
int uart_portno = 0;
int uart_count = 0;
char *hotplug_basedir;
int verbose = 0;
static struct sigaction sigact;
struct gbsim_interface interface;
static void cleanup(void)
{
printf("cleaning up\n");
sigemptyset(&sigact.sa_mask);
uart_cleanup();
gbsim_usb_cleanup();
svc_exit();
}
static void signal_handler(int sig)
{
if (sig == SIGINT || sig == SIGHUP || sig == SIGTERM)
cleanup();
}
static void signals_init(void)
{
sigact.sa_handler = signal_handler;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction(SIGINT, &sigact, (struct sigaction *)NULL);
sigaction(SIGHUP, &sigact, (struct sigaction *)NULL);
sigaction(SIGTERM, &sigact, (struct sigaction *)NULL);
}
int main(int argc, char *argv[])
{
int ret = -EINVAL;
int o;
while ((o = getopt(argc, argv, ":bh:i:u:U:v")) != -1) {
switch (o) {
case 'b':
bbb_backend = 1;
printf("bbb_backend %d\n", bbb_backend);
break;
case 'h':
hotplug_basedir = optarg;
printf("hotplug_basedir %s\n", hotplug_basedir);
break;
case 'i':
i2c_adapter = atoi(optarg);
printf("i2c_adapter %d\n", i2c_adapter);
break;
case 'u':
uart_portno = atoi(optarg);
printf("uart_portno %d\n", uart_portno);
break;
case 'U':
uart_count = atoi(optarg);
printf("uart_count %d\n", uart_count);
break;
case 'v':
verbose = 1;
printf("verbose %d\n", verbose);
break;
case ':':
if (optopt == 'i')
gbsim_error("i2c_adapter required\n");
else if (optopt == 'h')
gbsim_error("hotplug_basedir required\n");
else if (optopt == 'u')
gbsim_error("uart_portno required\n");
else if (optopt == 'U')
gbsim_error("uart_count required\n");
else
gbsim_error("-%c requires an argument\n",
optopt);
return 1;
case '?':
if (isprint(optopt))
gbsim_error("unknown option -%c'\n", optopt);
else
gbsim_error("unknown option character 0x%02x\n",
optopt);
return 1;
default:
abort();
}
}
if (!hotplug_basedir) {
gbsim_error("hotplug directory not specified, aborting\n");
return 1;
}
signals_init();
ret = gbsim_usb_init();
if (ret < 0)
goto out;
/* Protocol handlers */
ret = svc_init();
if (ret < 0)
goto out_cleanup;
gpio_init();
i2c_init();
uart_init();
sdio_init();
loopback_init();
ret = functionfs_loop();
out_cleanup:
cleanup();
out:
return ret;
}