Add initial version of Soft AP SDK
Change-Id: I7f2ca6dbfbb89065722a66bf04cff23362ec543a
This commit is contained in:
Raj Kushwaha
414
softap/sdk/qsap.c
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414
softap/sdk/qsap.c
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/*
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* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <linux/if.h>
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#include <linux/wireless.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#define LOG_TAG "QCLDR-"
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#include "cutils/log.h"
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#include "cutils/memory.h"
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#include "cutils/misc.h"
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#include "cutils/properties.h"
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#include "private/android_filesystem_config.h"
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#include "qsap_api.h"
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#include "qsap.h"
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#include "libwpa_client/wpa_ctrl.h"
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#include <sys/system_properties.h>
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extern int init_module(const char *name, u32, const s8 *);
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extern int delete_module(const char *name, int);
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static s32 check_driver_loaded( const s8 * tag)
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{
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FILE *proc;
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s8 line[126];
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if ((proc = fopen("/proc/modules", "r")) == NULL) {
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LOGW("Could not open %s: %s", "/proc/modules", strerror(errno));
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return 0;
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}
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while ((fgets(line, sizeof(line), proc)) != NULL) {
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if (strncmp(line, tag, strlen(tag)) == 0) {
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fclose(proc);
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return 1;
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}
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}
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fclose(proc);
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return 0;
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}
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static s32 insmod(const s8 *filename, const s8 *args, const s8 * tag)
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{
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#ifndef SDK_TEST
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void *module;
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s32 size;
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s32 ret = 0;
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if ( check_driver_loaded(tag) ) {
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LOGE("Driver: %s already loaded\n", filename);
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return ret;
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}
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LOGD("Loading Driver: %s %s\n", filename, args);
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module = (void*)load_file(filename, (unsigned int*)&size);
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if (!module) {
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LOGE("Cannot load file: %s\n", filename);
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return -1;
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}
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ret = init_module(module, size, args);
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if ( ret ) {
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LOGE("init_module (%s:%d) failed\n", filename, (int)size);
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}
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free(module);
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return ret;
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#else
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return 0;
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#endif
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}
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static s32 rmmod(const s8 *modname)
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{
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#ifndef SDK_TEST
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s32 ret = 0;
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s32 maxtry = 10;
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while (maxtry-- > 0) {
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ret = delete_module(modname, O_NONBLOCK | O_EXCL);
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if (ret < 0 && errno == EAGAIN){
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usleep(50000);
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} else {
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break;
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}
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}
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if (ret != 0) {
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LOGD("Unable to unload driver module \"%s\": %s\n",
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modname, strerror(errno));
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}
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return ret;
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#else
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return 0;
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#endif
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}
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static const s8 SDIO_POLLING_ON[] = "/etc/init.qcom.sdio.sh 1";
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static const s8 SDIO_POLLING_OFF[] = "/etc/init.qcom.sdio.sh 0";
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s32 wifi_qsap_load_driver(void)
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{
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s32 size;
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s32 ret = 0;
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s32 retry;
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/* Unload the station mode driver first */
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wifi_qsap_unload_wifi_sta_driver();
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if (system(SDIO_POLLING_ON)) {
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LOGE("Could not turn on the polling...");
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}
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#define SDIO_IF_DRV "/system/lib/modules/librasdioif.ko"
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#define SDIO_IF_DRV_ARG ""
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#define SDIO_IF_DRV_TAG "librasdioif"
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#define SOFTAP_DRV "/system/lib/modules/libra.ko"
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#define SOFTAP_DRV_ARG "con_mode=1"
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#define SOFTAP_DRV_TAG "libra"
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ret = insmod(SDIO_IF_DRV, SDIO_IF_DRV_ARG, SDIO_IF_DRV_TAG " ");
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if ( ret != 0 ) {
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LOGE("init_module failed sdioif\n");
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goto end;
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}
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sched_yield();
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ret = insmod(SOFTAP_DRV, SOFTAP_DRV_ARG, SOFTAP_DRV_TAG " ");
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if ( ret != 0 ) {
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LOGE("init_module failed libra_softap\n");
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goto end;
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}
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sched_yield();
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end:
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if(system(SDIO_POLLING_OFF)) {
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LOGE("Could not turn off the polling...");
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}
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return ret;
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}
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s32 wifi_qsap_unload_wifi_sta_driver(void)
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{
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s32 ret = 0;
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if(system(SDIO_POLLING_ON)) {
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LOGE("Could not turn on the polling...");
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}
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if ( check_driver_loaded(SOFTAP_DRV_TAG " ") ) {
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if ( rmmod(SOFTAP_DRV_TAG) ) {
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LOGE("Unable to unload the station mode wifi driver...\n");
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ret = 1;
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goto end;
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}
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}
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sched_yield();
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if ( check_driver_loaded(SDIO_IF_DRV_TAG " ") ) {
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if ( rmmod(SDIO_IF_DRV_TAG) ) {
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LOGE("Unable to unload the station mode librasdioif driver\n");
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ret = 1;
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goto end;
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}
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}
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end:
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if(system(SDIO_POLLING_OFF)) {
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LOGE("Could not turn off the polling...");
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}
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sched_yield();
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return 0;
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}
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s32 wifi_qsap_unload_driver()
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{
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s32 ret = 0;
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if(system(SDIO_POLLING_ON)) {
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LOGE("Could not turn on the polling...");
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}
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if ( check_driver_loaded(SOFTAP_DRV_TAG " ") ) {
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if ( rmmod(SOFTAP_DRV_TAG) ) {
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LOGE("Unable to unload the libra_softap driver\n");
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ret = 1;
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goto end;
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}
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}
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sched_yield();
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if ( check_driver_loaded(SDIO_IF_DRV_TAG " ") ) {
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if ( rmmod(SDIO_IF_DRV_TAG) ) {
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LOGE("Unable to unload the librasdioif driver\n");
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ret = 1;
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goto end;
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}
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}
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end:
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if(system(SDIO_POLLING_OFF)) {
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LOGE("Could not turn off the polling...");
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}
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return 0;
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}
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s32 wifi_qsap_stop_bss(void)
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{
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#define QCIEEE80211_IOCTL_STOPBSS (SIOCIWFIRSTPRIV + 6)
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s32 sock;
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s32 ret = eERR_STOP_BSS;
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s8 cmd[] = "stopbss";
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s8 interface[128];
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s8 *iface;
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s32 len = 128;
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struct iwreq wrq;
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struct iw_priv_args *priv_ptr;
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if(NULL == (iface = qsap_get_config_value(CONFIG_FILE, "interface", interface, (u32*)&len))) {
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LOGE("%s :interface error \n", __func__);
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return ret;
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}
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/* Issue the stopbss command to driver */
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sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock < 0) {
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LOGE("Failed to open socket");
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return eERR_STOP_BSS;
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}
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strncpy(wrq.ifr_name, iface, sizeof(wrq.ifr_name));
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wrq.u.data.length = sizeof(cmd);
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wrq.u.data.pointer = cmd;
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wrq.u.data.flags = 0;
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ret = ioctl(sock, QCIEEE80211_IOCTL_STOPBSS, &wrq);
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/* Here IOCTL is always returning non Zero: temporary fix untill driver is fixed*/
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ret = 0;
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close(sock);
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if (ret) {
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LOGE("IOCTL stopbss failed: %ld", ret);
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ret = eERR_STOP_BSS;
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} else {
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LOGD("STOP BSS ISSUED");
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ret = eSUCCESS;
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}
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sched_yield();
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return ret;
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}
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s32 is_softap_enabled(void)
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{
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s8 stat[32] = {0};
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if ( property_get("init.svc.hostapd", stat, NULL) &&
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(strcmp(stat, "running") == 0)) {
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LOGD("HOSTAPD enabled \n");
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return ENABLE;
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}
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LOGD("HOSTAPD disabled \n");
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return DISABLE;
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}
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s32 commit(void)
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{
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#ifndef SDK_TEST
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s32 ret = eERR_COMMIT;
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if ( is_softap_enabled() ) {
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/** Stop BSS */
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if(eSUCCESS != wifi_qsap_stop_bss()) {
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LOGE("%s: stop bss failed \n", __func__);
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return ret;
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}
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}
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sleep(1);
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return wifi_qsap_start_softap();
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#else
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return eSUCCESS;
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#endif
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}
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s32 wifi_qsap_start_softap()
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{
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s32 retry = 4;
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LOGD("Starting Soft AP...\n");
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while(--retry ) {
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/** Stop hostapd */
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if(0 != property_set("ctl.start", "hostapd")) {
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LOGE("failed \n");
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continue;
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}
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sleep(1);
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if ( is_softap_enabled() ) {
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LOGD("success \n");
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return eSUCCESS;
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}
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}
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LOGE("Unable to start the SoftAP\n");
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return eERR_START_SAP;
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}
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s32 wifi_qsap_stop_softap()
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{
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if ( is_softap_enabled() ) {
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LOGD("Stopping BSS ..... ");
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/** Stop the BSS */
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if (eSUCCESS != wifi_qsap_stop_bss()) {
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LOGE("failed \n");
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return eERR_STOP_SAP;
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}
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sleep(1);
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}
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return eSUCCESS;
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}
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s32 wifi_qsap_reload_softap()
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{
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s32 ret = eERR_RELOAD_SAP;
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/** SDK API to reload the firmware */
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if (eSUCCESS != wifi_qsap_stop_softap()) {
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return ret;
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}
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if (eSUCCESS != wifi_qsap_unload_driver()) {
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return ret;
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}
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usleep(500000);
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if (eSUCCESS != wifi_qsap_load_driver()) {
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return ret;
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}
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sleep(1);
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if (eSUCCESS != wifi_qsap_start_softap()) {
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return ret;
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}
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return eSUCCESS;
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}
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