#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include "rktools.h"
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#include "common.h"
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/**
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* 从/proc/cmdline 获取串口的节点
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*
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*/
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char *getSerial(){
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char *ans = (char*)malloc(20);
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char param[1024];
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int fd, ret;
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char *s = NULL;
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fd = open("/proc/cmdline", O_RDONLY);
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ret = read(fd, (char*)param, 1024);
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printf("cmdline=%s\n",param);
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s = strstr(param,"console");
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if(s == NULL){
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printf("no found console in cmdline\n");
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free(ans);
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ans = NULL;
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return ans;
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}else{
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s = strstr(s, "=");
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if(s == NULL){
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free(ans);
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ans = NULL;
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return ans;
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}
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strcpy(ans, "/dev/");
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char *str = ans + 5;
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s++;
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while(*s != ' '){
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*str = *s;
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str++;
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s++;
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}
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*str = '\0';
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printf("read console from cmdline is %s\n", ans);
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}
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return ans;
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}
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/**
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* 设置flash 节点
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*/
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static char result_point[4][20]={'\0'}; //0-->emmc, 1-->sdcard, 2-->SDIO, 3-->SDcombo
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int readFile(DIR* dir, char* filename){
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char name[30] = {'\0'};
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int i;
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strcpy(name, filename);
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strcat(name, "/type");
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int fd = openat(dirfd(dir), name, O_RDONLY);
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if(fd == -1){
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printf("Error: openat %s error %s.\n", name, strerror(errno));
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return -1;
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}
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char resultBuf[10] = {'\0'};
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read(fd, resultBuf, sizeof(resultBuf));
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for(i = 0; i < strlen(resultBuf); i++){
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if(resultBuf[i] == '\n'){
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resultBuf[i] = '\0';
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break;
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}
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}
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for(i = 0; i < 4; i++){
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if(strcmp(typeName[i], resultBuf) == 0){
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//printf("type is %s.\n", typeName[i]);
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return i;
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}
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}
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printf("Error:no found type!\n");
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return -1;
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}
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void init_sd_emmc_point(){
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DIR* dir = opendir("/sys/bus/mmc/devices/");
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if(dir != NULL){
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struct dirent* de;
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while((de = readdir(dir))){
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if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0 )
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continue;
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//if (de->d_type == 4) //dir
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// printf("dir name : %s \n", de->d_name);
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if (strncmp(de->d_name, "mmc", 3) == 0){
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//printf("find mmc is %s.\n", de->d_name);
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char flag = de->d_name[3];
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int ret = -1;
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ret = readFile(dir, de->d_name);
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if(ret != -1){
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strcpy(result_point[ret], point_items[flag - '0']);
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}else{
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strcpy(result_point[ret], "");
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}
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}
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}
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}
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closedir(dir);
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}
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static void wait_for_device(const char* fn) {
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int tries = 0;
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int ret;
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struct stat buf;
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do {
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++tries;
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ret = stat(fn, &buf);
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if (ret) {
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printf("stat %s try %d: %s\n", fn, tries, strerror(errno));
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sleep(1);
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}
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} while (ret && tries < 10);
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if (ret) {
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printf("failed to stat %s\n", fn);
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}
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}
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void setFlashPoint(){
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if (!isMtdDevice())
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wait_for_device(MISC_PARTITION_NAME_BLOCK);
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init_sd_emmc_point();
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setenv(EMMC_POINT_NAME, result_point[MMC], 1);
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//SDcard 有两个挂载点
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if(access(result_point[SD], F_OK) == 0)
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setenv(SD_POINT_NAME_2, result_point[SD], 1);
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char name_t[22];
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if(strlen(result_point[SD]) > 0){
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strcpy(name_t, result_point[SD]);
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strcat(name_t, "p1");
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}
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if(access(name_t, F_OK) == 0)
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setenv(SD_POINT_NAME, name_t, 1);
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printf("emmc_point is %s\n", getenv(EMMC_POINT_NAME));
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printf("sd_point is %s\n", getenv(SD_POINT_NAME));
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printf("sd_point_2 is %s\n", getenv(SD_POINT_NAME_2));
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}
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#define MTD_PATH "/proc/mtd"
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//判断是MTD还是block 设备
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bool isMtdDevice() {
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char param[2048];
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int fd, ret;
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char *s = NULL;
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fd = open("/proc/cmdline", O_RDONLY);
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ret = read(fd, (char*)param, 2048);
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close(fd);
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s = strstr(param,"storagemedia");
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if(s == NULL){
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printf("no found storagemedia in cmdline, default is not MTD.\n");
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return false;
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}else{
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s = strstr(s, "=");
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if (s == NULL) {
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printf("no found storagemedia in cmdline, default is not MTD.\n");
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return -1;
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}
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s++;
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while (*s == ' ') {
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s++;
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}
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if (strncmp(s, "mtd", 3) == 0 ) {
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printf("Now is MTD.\n");
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return true;
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} else if (strncmp(s, "sd", 2) == 0) {
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printf("Now is SD.\n");
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if ( !access(MTD_PATH, F_OK) ) {
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fd = open(MTD_PATH, O_RDONLY);
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ret = read(fd, (char*)param, 2048);
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close(fd);
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s = strstr(param,"mtd");
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if(s == NULL){
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LOGI("no found mtd.\n");
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return false;
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}
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LOGI("Now is MTD.\n");
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return true;
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}
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}
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}
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LOGI("devices is not MTD.\n");
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return false;
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}
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