zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/hostapp/zdump_ref/usb_dev.c b/ap/hostapp/zdump_ref/usb_dev.c
new file mode 100755
index 0000000..e64b20e
--- /dev/null
+++ b/ap/hostapp/zdump_ref/usb_dev.c
@@ -0,0 +1,170 @@
+/*******************************************************************************
+* °æȨËùÓÐ (C)2016, ÖÐÐËͨѶ¹É·ÝÓÐÏÞ¹«Ë¾¡£
+*
+* ÎļþÃû³Æ: usb_dev.c
+* Îļþ±êʶ: usb_dev.c
+* ÄÚÈÝÕªÒª: usbÉ豸·ÃÎʹ¤¾ß
+*
+* ÐÞ¸ÄÈÕÆÚ °æ±¾ºÅ Ð޸ıê¼Ç ÐÞ¸ÄÈË ÐÞ¸ÄÄÚÈÝ
+* ------------------------------------------------------------------------------
+* 2016/3/10 V1.0 Create ´´½¨
+*
+*******************************************************************************/
+
+/*******************************************************************************
+* Í·Îļþ *
+*******************************************************************************/
+#include<stdlib.h>
+#include<stdio.h>
+#include<string.h>
+#include<sys/types.h>
+#include<sys/stat.h>
+#include<fcntl.h>
+#include<errno.h>
+#include<getopt.h>
+#include<stdarg.h>
+#include<termios.h>
+#include<stddef.h>
+#include<dirent.h>
+#include <unistd.h>
+
+/*******************************************************************************
+* ºê¶¨Òå *
+*******************************************************************************/
+#define USB_DIR_FILE_NAME_SIZE 1024
+#define USB_DIR_BASE "/sys/bus/usb/devices"
+#define USB_PID 0x0197
+#define SUCCESS 0
+#define FAIL -1
+
+/*******************************************************************************
+* ³£Á¿¶¨Òå *
+*******************************************************************************/
+char sys_filename[USB_DIR_FILE_NAME_SIZE] = {0};
+int g_usb_dev = -1;
+
+/*******************************************************************************
+* Êý¾ÝÀàÐͶ¨Òå *
+*******************************************************************************/
+
+/*******************************************************************************
+* º¯ÊýÉùÃ÷ *
+*******************************************************************************/
+
+/*******************************************************************************
+* ¾Ö²¿¾²Ì¬±äÁ¿¶¨Òå *
+*******************************************************************************/
+
+/*******************************************************************************
+* È«¾Ö±äÁ¿¶¨Òå *
+*******************************************************************************/
+
+/*******************************************************************************
+* ¾Ö²¿º¯ÊýʵÏÖ *
+*******************************************************************************/
+int dev_get_usbsys_val(const char *sys_filename, int base)
+{
+ char buff[64] = {0};
+ int ret_val = -1;
+ int fd = -1;
+
+ fd = open(sys_filename, O_RDONLY);
+ if (fd < 0) {
+ printf("failed to open usbsys, error is %s\n", strerror(errno));
+ return FAIL;
+ }
+
+ if (read(fd, buff, sizeof(buff)) <= 0) {
+ printf("[%s] read:%s failed\n", __func__, sys_filename);
+ }
+ else {
+ ret_val = strtoul(buff, NULL, base);
+ }
+ close(fd);
+
+ return ret_val;
+}
+
+int dev_strStartsWith(const char *line, const char *src)
+{
+ int ret = -1;
+
+ for ( ; *line != '\0' && *src != '\0'; line++, src++) {
+ if (*line != *src) {
+ return FAIL;
+ }
+ }
+ ret = atoi(line);
+ return ret;
+}
+
+int dev_get_ttyport_by_syspath(char *syspath)
+{
+ DIR *usbdir = NULL;
+ struct dirent *dent = NULL;
+ int usb_port = -1;
+
+ usbdir = opendir(syspath);
+ if (usbdir == NULL) {
+ printf("%s: open [%s] busdir failed\n", __func__, syspath);
+ return -1;
+ }
+
+ while ((dent = readdir(usbdir)) != NULL)
+ {
+ usb_port = dev_strStartsWith(dent->d_name, "ttyUSB");
+ if ( usb_port >= 0) {
+ closedir(usbdir);
+ usbdir = NULL;
+ return usb_port;
+ }
+ }
+
+ if (usbdir) {
+ closedir(usbdir);
+ usbdir = NULL;
+ }
+ return FAIL;
+}
+
+int dev_get_device(void)
+{
+ DIR *usbdir = NULL;
+ struct dirent *dent = NULL;
+ int idProduct = 0;
+ int bConfigurationValue = 0;
+ int num = 0;
+ usbdir = opendir(USB_DIR_BASE);
+ if (usbdir == NULL)
+ return FAIL;
+
+ while ((dent = readdir(usbdir)) != NULL){
+ if (strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0) {
+ continue;
+ }
+
+ snprintf(sys_filename, sizeof(sys_filename), "%s/%s/idProduct", USB_DIR_BASE, dent->d_name);
+ if ((idProduct = dev_get_usbsys_val(sys_filename, 16)) <= 0) {
+ continue;
+ }
+
+ snprintf(sys_filename, sizeof(sys_filename), "%s/%s/bConfigurationValue", USB_DIR_BASE, dent->d_name);
+ if ((bConfigurationValue = dev_get_usbsys_val(sys_filename, 10)) <= 0) {
+ continue;
+ }
+
+ if (idProduct == USB_PID){
+ snprintf(sys_filename, sizeof(sys_filename), "%s/%s/%s:%d.%d", USB_DIR_BASE, dent->d_name, dent->d_name, bConfigurationValue, 0);
+ g_usb_dev = dev_get_ttyport_by_syspath(sys_filename);
+ closedir(usbdir);
+ usbdir = NULL;
+ return SUCCESS;
+ }
+ }
+ if (usbdir) {
+ closedir(usbdir);
+ usbdir = NULL;
+ }
+ return FAIL;
+}
+