diff options
Diffstat (limited to 'common/recipes-applications/watchdog-test/files/watchdog-test.c')
| -rw-r--r-- | common/recipes-applications/watchdog-test/files/watchdog-test.c | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/common/recipes-applications/watchdog-test/files/watchdog-test.c b/common/recipes-applications/watchdog-test/files/watchdog-test.c deleted file mode 100644 index daedce98..00000000 --- a/common/recipes-applications/watchdog-test/files/watchdog-test.c +++ /dev/null @@ -1,288 +0,0 @@ -/***************************************************************************** -* -* Copyright (c) 2014, Advanced Micro Devices, Inc. -* All rights reserved. -* -* 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 Advanced Micro Devices, Inc. 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 ADVANCED MICRO DEVICES, INC. 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 <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <signal.h> -#include <readline/readline.h> -#include <linux/watchdog.h> - -#define WATCHDOG_APP_VERSION "0.1" - -int fd; /* /dev/watchdog file descriptor */ -volatile int ping; - -char *show_prompt(void) -{ - return "$ "; -} - -void sighandler(int sig) -{ - printf("\n%s", show_prompt()); -} - -void pinghandler(int sig) -{ - ping = 0; - printf("\n"); - /* Set the signal handler back to the original */ - signal(SIGINT, sighandler); -} - -void show_license(void) -{ - printf("/*****************************************************************************\n" - "*\n" - "* Copyright (c) 2014, Advanced Micro Devices, Inc.\n" - "* All rights reserved.\n" - "*\n" - "* Redistribution and use in source and binary forms, with or without\n" - "* modification, are permitted provided that the following conditions are met:\n" - "* * Redistributions of source code must retain the above copyright\n" - "* notice, this list of conditions and the following disclaimer.\n" - "* * Redistributions in binary form must reproduce the above copyright\n" - "* notice, this list of conditions and the following disclaimer in the\n" - "* documentation and/or other materials provided with the distribution.\n" - "* * Neither the name of Advanced Micro Devices, Inc. nor the names of\n" - "* its contributors may be used to endorse or promote products derived\n" - "* from this software without specific prior written permission.\n" - "*\n" - "* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n" - "* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n" - "* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n" - "* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY\n" - "* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n" - "* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n" - "* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n" - "* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" - "* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n" - "* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" - "*\n" - "*\n" - "***************************************************************************/\n"); -} - -void print_usage() -{ - printf("\nCommands Supported ->\n"); - printf(" disablewatchdog : Disables the Watchdog Timer\n"); - printf(" enablewatchdog : Enables the Watchdog Timer\n"); - printf(" getfeatures : Shows the features supported by the Watchdog implementation\n"); - printf(" getstatus : Gives the current status of Watchdog Timer\n"); - printf(" getbootstatus : Displays the status of Watchdog Hardware after reboot or fresh boot\n"); - printf(" ping : Resets Watchdog Timer at regular intervals\n"); - printf(" gettimeout : Gives the value of Watchdog timeout (in frequency units)\n"); - printf(" gettimeleft : Gives the current value of Watchdog Timer (in frequency units)\n"); - printf(" sendmagicchar : Sends the magic character 'V' to the Watchdog device\n"); - printf(" settimeout <timeout> : Sets the new value for Watchdog timeout (in frequency units)\n"); - printf(" license : Displays the terms of LICENSE for this application\n"); - printf(" help : Displays help text\n"); - printf(" exit : Exits the application\n\n"); -} - -void parse_cmd(const char *cmdline) -{ - if ((cmdline == NULL) || (strncmp(cmdline, "exit", 4) == 0)) { - printf("\nExiting...\n"); - printf("\nIf the Watchdog Timer was not disabled, and you did not send the magic character,\n" - "Watchdog Timer is still ticking, and your system will reboot soon\n"); - - if(close(fd) < 0) - perror("Error closing /dev/watchdog"); - exit(EXIT_SUCCESS); - } else if (strncmp(cmdline, "help", 4) == 0) - print_usage(); - else if (strncmp(cmdline, "disablewatchdog", 7) == 0) { - int flags; - - printf("\nDisabling watchdog timer...\n"); - flags = WDIOS_DISABLECARD; - if (ioctl(fd, WDIOC_SETOPTIONS, &flags) < 0) - perror("Could not disable watchdog"); - } else if (strncmp(cmdline, "enablewatchdog", 6) == 0) { - int flags; - - printf("\nEnabling watchdog timer...\n"); - flags = WDIOS_ENABLECARD; - if (ioctl(fd, WDIOC_SETOPTIONS, &flags) < 0) - printf("Could not enable watchdog"); - } else if (strncmp(cmdline, "getfeatures", 10) == 0) { - struct watchdog_info info; - - if(ioctl(fd, WDIOC_GETSUPPORT, &info) < 0) - perror("Could not get watchdog features"); - - printf("\nIdentity:\t\t%s\n", info.identity); - printf("Firmware Version:\t%u\n", info.firmware_version); - printf("Options Set: \n" - "%s%s%s%s%s%s%s%s%s%s%s\n", - info.options & WDIOF_OVERHEAT ? "\t\t\tReset due to CPU overheat\n": "", - info.options & WDIOF_FANFAULT ? "\t\t\tFan failed\n": "", - info.options & WDIOF_EXTERN1 ? "\t\t\tExternal relay 1\n": "", - info.options & WDIOF_EXTERN2 ? "\t\t\tExternal relay 2\n": "", - info.options & WDIOF_POWERUNDER ? "\t\t\tPower bad/power fault\n": "", - info.options & WDIOF_CARDRESET ? "\t\t\tCard previously reset the CPU\n": "", - info.options & WDIOF_POWEROVER ? "\t\t\tPower over voltage\n": "", - info.options & WDIOF_SETTIMEOUT ? "\t\t\tSet timeout (in frequency units)\n": "", - info.options & WDIOF_MAGICCLOSE ? "\t\t\tSupports magic close character\n": "", - info.options & WDIOF_PRETIMEOUT ? "\t\t\tPretimeout (in frequency units)\n": "", - info.options & WDIOF_KEEPALIVEPING ? "\t\t\tKeep alive ping reply\n": ""); - } else if (strncmp(cmdline, "getstatus", 9) == 0) { - int status; - - printf("\n"); - if(ioctl(fd, WDIOC_GETSTATUS, &status) < 0) - perror("Could not get watchdog status"); - - if (status & (1 << 0)) - printf("\nWatchdog device is active\n"); - if (status & (1 << 1)) - printf("Watchdog device opened via /dev/watchdog\n"); - if (status & (1 << 2)) - printf("Received magic char\n"); - if (status & (1 << 3)) - printf("nowayout set\n"); - if (status & (1 << 4)) - printf("Watchdog device unregistered\n"); - } else if (strncmp(cmdline, "getbootstatus", 7) == 0) { - int bootstatus; - - if(ioctl(fd, WDIOC_GETBOOTSTATUS, &bootstatus) < 0) - perror("Could not get bootstatus"); - - printf("\nbootstatus: \n" - "%s%s%s%s%s%s%s%s%s%s%s\n", - bootstatus & WDIOF_OVERHEAT ? "\t\t\tReset due to CPU overheat\n": "", - bootstatus & WDIOF_FANFAULT ? "\t\t\tFan failed\n": "", - bootstatus & WDIOF_EXTERN1 ? "\t\t\tExternal relay 1\n": "", - bootstatus & WDIOF_EXTERN2 ? "\t\t\tExternal relay 2\n": "", - bootstatus & WDIOF_POWERUNDER ? "\t\t\tPower bad/power fault\n": "", - bootstatus & WDIOF_CARDRESET ? "\t\t\tCard previously reset the CPU\n": "", - bootstatus & WDIOF_POWEROVER ? "\t\t\tPower over voltage\n": "", - bootstatus & WDIOF_SETTIMEOUT ? "\t\t\tSet timeout (in frequency units)\n": "", - bootstatus & WDIOF_MAGICCLOSE ? "\t\t\tSupports magic close character\n": "", - bootstatus & WDIOF_PRETIMEOUT ? "\t\t\tPretimeout (in frequency units)\n": "", - bootstatus & WDIOF_KEEPALIVEPING ? "\t\t\tKeep alive ping reply\n": ""); - } else if (strncmp(cmdline, "ping", 4) == 0) { - int dummy; - - printf("\nContinuosly resetting Watchdog...press Ctrl+C to stop\n"); - printf("\nOnce you stop pinging, Watchog Timer will start counting down...\n"); - printf("...If the Watchdog Timer was enabled\n"); - - /* Lets set a different handler for Ctrl+C */ - signal(SIGINT, pinghandler); - - ping = 1; - while (ping) { - if(ioctl(fd, WDIOC_KEEPALIVE, &dummy) < 0) { - perror("Error sending ping"); - break; - } - sleep(1); - } - } else if (strncmp(cmdline, "gettimeout", 10) == 0) { - int timeout; - - if(ioctl(fd, WDIOC_GETTIMEOUT, &timeout) < 0) - perror("Error getting watchdog timeout"); - - printf("\nCurrent setting of timeout is %d frequency units\n", timeout); - } else if (strncmp(cmdline, "gettimeleft", 11) == 0) { - int timeleft; - - if(ioctl(fd, WDIOC_GETTIMELEFT, &timeleft) < 0) - perror("Error getting watchdog timeleft"); - - printf("\nTime left for system reboot/shutdown is %d frequency units\n", timeleft); - } else if (strncmp(cmdline, "sendmagicchar", 9) == 0) { - printf("\nSending magic character to Watchdog device...\n"); - printf("\nWatchdog Timer will be stopped once you exit the application\n"); - if(write(fd, "V", 1) < 0) - perror("Could not send magic character"); - } else if (strncmp(cmdline, "settimeout", 10) == 0) { - const char *charp = cmdline; - int timeout; - - /* Lets point to the end of first token */ - charp += strlen("settimeout"); - /* Skip blank characters */ - while (*charp == ' ' || *charp == '\t' || *charp == '\n') - charp++; - - /* Now we should be pointing to the first 'digit' character */ - timeout = atoi(charp); - - if(ioctl(fd, WDIOC_SETTIMEOUT, &timeout) < 0) { - perror("Could not set watchdog timeout"); - return; - } - - printf("\nSetting timeout to %d frequency units\n", timeout); - printf("Watchdog Timer will start counting down with the new timeout value\n"); - } else if (strncmp(cmdline, "license", 7) == 0) { - show_license(); - } else { - printf("\nUnknown command\n"); - print_usage(); - } -} - -int main(void) -{ - char *cmdline= NULL; - - printf("Watchdog sample application version: %s\n", WATCHDOG_APP_VERSION); - printf("Copyright (c) 2014, Advanced Micro Devices, Inc.\n" - "This sample application comes with ABSOLUTELY NO WARRANTY;\n" - "This is free software, and you are welcome to redistribute it\n" - "under certain conditions; type `license' for details.\n\n"); - - - if ((fd = open("/dev/watchdog", O_WRONLY)) < 0) { - perror("Could not open /dev/watchdog"); - exit(1); - } - - /* Handler for Ctrl+C */ - signal(SIGINT, sighandler); - - while (1) { - cmdline = readline(show_prompt()); - parse_cmd(cmdline); - /* Free the memory malloc'ed by readline */ - free(cmdline); - } - - /* Should never reach here */ - return 0; -} |