Piteball/android_hardware_samsung
1
0
Fork 0
mirror of https://github.com/team-infusion-developers/android_hardware_samsung.git synced 2024-11-06 21:55:41 +00:00
Code Issues Projects Releases Packages Wiki Activity

macloader: Add support to set nvram calibration file.

Browse source 
Change-Id: I0eb99ad6084eb8cd4452a91b13dd75384785f5a8
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit e283a09f99d0cbad2cf8b903ffe2da1c3e44663e)
This commit is contained in:
Andreas Schneider 2015-01-26 22:56:30 +01:00 committed by Nir Bruderman
parent 70c7d4ddbb
commit 3ff947b8d3
2 changed files with 103 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
macloader/Android.mk
View file

@ -3,6 +3,14 @@ ifeq ($(BOARD_HAVE_SAMSUNG_WIFI),true)
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
ifdef WIFI_DRIVER_NVRAM_PATH
LOCAL_CFLAGS += -DWIFI_DRIVER_NVRAM_PATH=\"$(WIFI_DRIVER_NVRAM_PATH)\"
endif
ifdef WIFI_DRIVER_NVRAM_PATH_PARAM
LOCAL_CFLAGS += -DWIFI_DRIVER_NVRAM_PATH_PARAM=\"$(WIFI_DRIVER_NVRAM_PATH_PARAM)\"
endif
LOCAL_SRC_FILES := \
macloader.c

95
macloader/macloader.c
View file

@ -22,12 +22,22 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <pwd.h>
#include <cutils/log.h>
#ifndef WIFI_DRIVER_NVRAM_PATH
#define WIFI_DRIVER_NVRAM_PATH NULL
#endif
#ifndef WIFI_DRIVER_NVRAM_PATH_PARAM
#define WIFI_DRIVER_NVRAM_PATH_PARAM "/sys/module/wlan/parameters/nvram_path"
#endif
#define MACADDR_PATH "/efs/wifi/.mac.info"
#define CID_PATH "/data/.cid.info"
@ -41,6 +51,82 @@ enum Type {
WISOL
};
static int wifi_change_nvram_calibration(const char *nvram_file,
const char *type)
{
int len;
int fd = -1;
int ret = 0;
struct stat sb;
char nvram_str[1024] = { 0 };
if (nvram_file == NULL || type == NULL) {
return -1;
}
ret = stat(nvram_file, &sb);
if (ret != 0) {
ALOGE("Failed to check for NVRAM calibration file '%s' - error: %s",
nvram_file,
strerror(errno));
return -1;
}
ALOGD("Using NVRAM calibration file: %s\n", nvram_file);
fd = TEMP_FAILURE_RETRY(open(WIFI_DRIVER_NVRAM_PATH_PARAM, O_WRONLY));
if (fd < 0) {
ALOGE("Failed to open wifi nvram config path %s - error: %s",
WIFI_DRIVER_NVRAM_PATH_PARAM, strerror(errno));
return -1;
}
len = strlen(nvram_file) + 1;
if (TEMP_FAILURE_RETRY(write(fd, nvram_file, len)) != len) {
ALOGE("Failed to write to wifi config path %s - error: %s",
WIFI_DRIVER_NVRAM_PATH_PARAM, strerror(errno));
ret = -1;
goto out;
}
snprintf(nvram_str, sizeof(nvram_str), "%s_%s",
nvram_file, type);
ALOGD("Changing NVRAM calibration file for %s chipset\n", type);
ret = stat(nvram_str, &sb);
if (ret != 0) {
ALOGW("NVRAM calibration file '%s' doesn't exist", nvram_str);
/*
* We were able to write the default calibration file. So
* continue here without returning an error.
*/
ret = 0;
goto out;
}
len = strlen(nvram_str) + 1;
if (TEMP_FAILURE_RETRY(write(fd, nvram_str, len)) != len) {
ALOGW("Failed to write to wifi config path %s - error: %s",
WIFI_DRIVER_NVRAM_PATH_PARAM, strerror(errno));
/*
* We were able to write the default calibration file. So
* continue here without returning an error.
*/
ret = 0;
goto out;
}
ALOGD("NVRAM calibration file set to '%s'\n", nvram_str);
ret = 0;
out:
if (fd != -1) {
close(fd);
}
return ret;
}
int main() {
FILE* file;
FILE* cidfile;
@ -120,6 +206,7 @@ int main() {
}
if (type != NONE) {
const char *nvram_file;
const char *type_str;
struct passwd *pwd;
int fd;
@ -191,6 +278,14 @@ int main() {
CID_PATH, strerror(errno));
return 1;
}
nvram_file = WIFI_DRIVER_NVRAM_PATH;
if (nvram_file != NULL) {
ret = wifi_change_nvram_calibration(nvram_file, type_str);
if (ret != 0) {
return 1;
}
}
} else {
/* delete cid file if no specific type */
ALOGD("Deleting file %s\n", CID_PATH);