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#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <sys/stat.h>
#include "compatible_devices.h"
#include "exynos4412_gpios.h"
#include "modem_gpios_data.h"
#include "tests.h"
int usage(char* progname)
{
printf("Usage: %s [test|flash]\n", progname);
printf("\n");
printf("Available commands:\n");
printf("\ttest: run self tests\n");
printf("\tflash: dump flash GPIO (gpj1 1) status\n");
return 0;
}
int dump_flash_gpio_status(int debug, char* devmem, int fd, size_t page_size)
{
int rc;
rc = dump_gpio_infos(devmem, fd, page_size, "gpj1", 1);
if (rc == -1) {
printf("dump_gpio_infos failed with error %d\n", rc);
/* TODO: return more precise error */
return EX_UNAVAILABLE;
}
return 0;
}
int main(int argc, char *argv[])
{
int fd = 0;
int rc = 0;
int debug = 0;
char *devmem = "/dev/mem";
size_t page_size = 4096;
assert(argc >= 1);
if (argc != 2) {
usage(argv[0]);
return EX_USAGE;
}
if (!device_is_compatible(debug)) {
printf("Exiting due to incompatible device\n");
return 0;
}
/*
* TODO: check if root or tell the user to become root in case or
* access error
*/
fd = open(devmem, O_RDWR | O_SYNC);
if (fd == -1) {
rc = errno;
printf("Opening %s failed with error %d: %s\n",
devmem, rc, strerror(rc));
/* TODO: return more precise error */
return EX_UNAVAILABLE;
}
if (argc == 2 && !strcmp("test", argv[1])) {
return run_tests(debug, devmem, fd, page_size);
} else if (argc == 2 && !strcmp("flash", argv[1])) {
return dump_flash_gpio_status(debug, devmem, fd, page_size);
} else {
usage(argv[0]);
return EX_USAGE;
}
rc = close(fd);
if (rc == -1) {
rc = errno;
printf("Closing %s failed with error %d: %s\n",
devmem, rc, strerror(rc));
/* TODO: return more precise error */
return EX_UNAVAILABLE;
}
return 0;
}
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