136 lines
2.5 KiB
C
136 lines
2.5 KiB
C
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#include <ctype.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "soc.h"
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char *get_soc_name(char *buf)
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{
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char *start;
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char *ret;
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int size;
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start = strstr(buf, "rk");
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ret = strdup(start);
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size = strlen(ret);
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ret[0] = 'R';
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ret[1] = 'K';
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for (int i = 2; i < size; i++)
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{
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char c = *(ret + i);
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if (((c > '9') || (c < '0')) &&
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((c != 'x') || (c != 'X')))
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{
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*(ret + i) = '\0';
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break;
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}
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*(ret + i) = toupper(c);
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}
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return ret;
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}
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char *get_compatible_name(void)
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{
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const char *path = "/proc/device-tree/compatible";
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int fd = open(path, O_RDONLY);
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char name[128];
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int size = sizeof(name);
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ssize_t soc_name_len = 0;
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if (fd < 0)
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{
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printf("open %s error\n", path);
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return NULL;
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}
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snprintf(name, size - 1, "unknown");
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soc_name_len = read(fd, name, size - 1);
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if (soc_name_len > 0)
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{
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name[soc_name_len] = '\0';
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/* replacing the termination character to space */
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for (char *ptr = name;; ptr = name)
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{
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ptr += strnlen(name, size);
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if (ptr >= name + soc_name_len - 1)
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break;
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*ptr = ' ';
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}
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printf("chip name: %s\n", name);
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}
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else
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{
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printf("read failed %d\n", soc_name_len);
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}
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close(fd);
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return strdup(name);
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}
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char *get_kernel_version(char *buf)
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{
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char *info = NULL;
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char *ret;
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int size;
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if (!buf)
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info = get_system_version();
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else
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info = buf;
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ret = strdup(info + (sizeof("Linux version ") - 1));
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size = strlen(ret);
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for (int i = 0; i < size; i++)
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{
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char c = *(ret + i);
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if (c == ' ')
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{
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*(ret + i) = '\0';
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break;
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}
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}
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if (!buf)
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free(info);
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return ret;
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}
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char *get_system_version(void)
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{
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const char *path = "/proc/version";
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int fd = open(path, O_RDONLY);
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char info[1024];
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int size = sizeof(info);
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ssize_t len = 0;
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if (fd < 0)
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{
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printf("open %s error\n", path);
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return NULL;
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}
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snprintf(info, size - 1, "unknown");
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len = read(fd, info, size - 1);
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if (len <= 0)
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{
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printf("read failed %d\n", len);
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return NULL;
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}
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info[len] = '\0';
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close(fd);
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return strdup(info);
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}
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