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/*
* Suspend-to-RAM
*
* Copyright 2006 Pavel Machek <pavel@suse.cz>
* Copyright 2009 Rodolfo Garcia <kix@kix.es>
* Copyright 2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
* Distribute under GPLv2.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <errno.h>
#include <string.h>
#ifndef S2RAM
#define S2RAM
#endif
#include "vt.h"
#include "whitelist.h"
#include "s2ram.h"
#include "config_parser.h"
int main(int argc, char *argv[])
{
int i, ret = 0;
int active_console = -1;
struct option options[] = {
{
"help\0\tthis text.",
no_argument, NULL, 'h'
},
{
"version\0\t\t\tversion information",
no_argument, NULL, 'V'
},
{
"test\0\ttest if the machine is in the database.",
no_argument, NULL, 'n'
},
{
"kmstest\0\ttest if the kernel has KMS support.",
no_argument, NULL, 'K'
},
{
"identify\0prints a string that identifies the machine.",
no_argument, NULL, 'i'
},
HACKS_LONG_OPTS
{ NULL, 0, NULL, 0 }
};
const char *optstring = "hVnKi" "fspmrva:k";
while ((i = getopt_long(argc, argv, optstring, options, NULL)) != -1) {
switch (i) {
case 'h':
usage("s2ram", options, optstring);
exit(0);
case 'V':
version("s2ram", whitelist_version);
exit(EXIT_SUCCESS);
case 'i':
identify_machine();
exit(0);
case 'n':
ret = machine_known();
exit(ret);
case 'K':
ret = s2ram_check_kms();
if (!ret)
printf("This kernel has KMS support.\n");
else
printf("This kernel doesn't have KMS support.\n");
exit(ret);
case '?':
usage("s2ram", options, optstring);
exit(1);
break;
default:
s2ram_add_flag(i, optarg);
break;
}
}
/* Check if the KMS support is disabled by user */
if (!no_kms_flag) {
/* KMS */
ret = s2ram_check_kms();
if (!ret) {
printf("KMS graphics driver is in use, skipping quirks.\n");
return s2ram_generic_do();
}
} else {
printf("KMS disabled by user.\n");
}
/* Test if s2ram will use quirks from the configuration file */
ret = get_s2ram_config();
if (ret) {
/* No configuration file, using quirks form database */
ret = s2ram_is_supported();
if (ret == S2RAM_UNKNOWN) {
printf("Machine is unknown.\n");
identify_machine();
goto out;
}
if (ret == S2RAM_NOFB)
printf("This machine can only suspend without framebuffer.\n");
if (ret)
goto out;
} else {
printf("Using quirks from the configuration file.\n");
}
/* switch to console 1 first, since we might be in X */
active_console = fgconsole();
printf("switching from vt%d to vt1... ", active_console);
if (chvt(1))
printf("succeeded\n");
else
printf("failed\n");
ret = s2ram_hacks();
if (ret)
goto out;
ret = s2ram_do();
s2ram_resume();
out:
/* if we switched consoles before suspend, switch back */
if (active_console > 0) {
printf("switching back to vt%d... ", active_console);
if (chvt(active_console))
printf("succeeded\n");
else
printf("failed\n");
}
return ret;
}
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