cap/zx297520v3/src/lynq/lib/liblynq-qser-autosuspend/lynq-qser-autosuspend.cpp

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <pthread.h>
#include<unistd.h>

#include <lynq_autosuspend.h>
#include "lynq-qser-autosuspend.h"
#include "liblog/lynq_deflog.h"

#ifdef __cplusplus
extern "C" {
#endif


extern int lynq_autosleep_enable(void);
extern int lynq_autosleep_disable(void);
extern int release_wake_lock(char *name);
extern int acquire_wake_lock(int lock, char *name);

#define USER_LOG_TAG "LYNQ_QSER_AUTOSUSPEND"
#define FILE_LOCK_TABLE "/tmp/.lock_table"


LOCK_TABLE lock_status;


int file_fd;
int first_run = 0;


int lock_table_init(void)
{
    int ret;
    int err;

    file_fd = open(FILE_LOCK_TABLE, O_RDWR| O_CREAT,0777);
    if(file_fd < 0)
    {
        err = errno;
        LYINFLOG("Error open lock_table file:%s\n", strerror(errno));
        return -err;
    }
    memset(&lock_status, 0, sizeof(lock_status));
    ret = write(file_fd, (char*)&lock_status, sizeof(lock_status));
    if(ret <= 0)
    {
        LYINFLOG("write fail\n");
        close(file_fd);
        return E_WRITE;
    }
    sync();
    close(file_fd);
    return 0;
}


int read_lock_table(void)
{
    int err;
    int ret;
    int i;
    LYLOGSET(LOG_INFO);
    LYLOGEINIT(USER_LOG_TAG);

    if(access(FILE_LOCK_TABLE,0) < 0)
    {
        ret = lock_table_init();
        if(ret < 0)
        {
            return E_READ;
        }
    }

    file_fd = open(FILE_LOCK_TABLE,O_RDWR);
    if(file_fd < 0)
    {
        err = errno;
        LYINFLOG("Error open lock_table file:%s\n", strerror(errno));
        return E_READ;
    }

    memset(&lock_status, 0, sizeof(lock_status));
    lseek(file_fd,0,SEEK_SET);
    ret = read(file_fd,(unsigned char *)&lock_status,sizeof(lock_status));
    LYINFLOG("read ret=%d\n", ret);
    if(ret <= 0)
    {
        close(file_fd);
        return E_READ;
    }

    for(i=0;i<MAX_LOCK_NUM;i++)
    {
        if(strlen(lock_status.lock_name[i]) != 0)
        {
            LYINFLOG("fd: %d lock_name:%s strlen:%d\n", i, lock_status.lock_name[i], strlen(lock_status.lock_name[i]));
        }
    }

    close(file_fd);
    return 0;
}


int save_lock_table(void)
{
    int err;
    int ret;
    file_fd = open(FILE_LOCK_TABLE,O_RDWR);
    if(file_fd < 0)
    {
        err = errno;
        LYINFLOG("Error open lock_table file:%s\n", strerror(errno));
        return E_WRITE;
    }
    LYINFLOG("write lock_name[0]: %s\n", lock_status.lock_name[0]);
    ret = write(file_fd, (unsigned char *)&lock_status, sizeof(lock_status));
    LYINFLOG("write ret=%d\n", ret);
    if(ret <= 0)
    {
        LYINFLOG("write fail\n");
        close(file_fd);
        return E_WRITE;
    }
    sync();
    close(file_fd);

    return 0;
}


int check_lock(char *name)
{
    int j;
    int num;
    for(j=0;j<MAX_LOCK_NUM;j++)
    {
        if(strcmp(lock_status.lock_name[j], name) == 0)
        {
            num = j;
            break;
        }
    }

    if(j < MAX_LOCK_NUM)
    {
        return num;
    }

    return -1;
}


int add_lock(char *name)
{
    int ret;
    int i = 0;
    int num;
    int check_flag;
    
    LYINFLOG("name:%s\n", name);
    ret = read_lock_table();
    LYINFLOG("read_lock_table ret = %d\n", ret);
    if(ret <0)
    {
        return ret;
    }

    check_flag = check_lock(name);

    if(check_flag < 0)
    {
        for(i=0;i<MAX_LOCK_NUM;i++)
        {
            if(strlen(lock_status.lock_name[i]) == 0)
            {
                strcpy(lock_status.lock_name[i], name);
                LYINFLOG("lock_name[%d] %s\n", i, lock_status.lock_name[i]);
                break;
            }
        }
        if(i == MAX_LOCK_NUM)
        {
            return E_TABLE_FULL;
        }
        else
        {
            num = i;
        }
    }
    else
    {
        return E_LOCK_EXIST;
    }

    LYINFLOG("num = %d\n", num);
    ret = save_lock_table();
    if(ret < 0)
    {
        return ret;
    }
    return num;
}

int delete_lock(int fd)
{
    int ret;
    int i;
    ret = read_lock_table();
    memset(lock_status.lock_name[fd], 0, sizeof(lock_status.lock_name[fd]));
    ret = save_lock_table();
    return ret;
}

int qser_lpm_init(qser_lpm_Handler_t qser_lpm_handler, qser_pm_cfg_t *qser_lpm_cfg)
{
    int ret;
    ret = system("uci set lynq_uci.lynq_autosuspend.init='1'");
    system("uci commit");
    if(ret != 0)
    {
        LYINFLOG("uci set fail");
    }
    ret = system("./etc/init.d/lynq-autosuspend.sh restart");
    if(ret != 0)
    {
        LYINFLOG("restart service fail");
    }
    return ret;
}


int qser_lpm_deinit(void)
{
    int ret;
    system("uci set lynq_uci.lynq_autosuspend.init='0'");
    system("uci commit");
    if(ret != 0)
    {
        LYINFLOG("uci set fail");
    }
    system("./etc/init.d/lynq-autosuspend.sh restarts");
    if(ret != 0)
    {
        LYINFLOG("restart service fail");
    }
    return 0;
}


int qser_autosuspend_enable(char enable)
{
    int ret;
    if(enable == '0')
    {
        ret = lynq_autosleep_disable();

    }
    else if(enable == '1')
    {
        ret = lynq_autosleep_enable();
    }
    else
    {
        return E_INPUT_ERROR;

    }
    if(ret >= 0)
    {
        ret = 0;
    }
    return ret;

}


int qser_wakelock_create(const char *name, size_t len)
{
    int ret;
    if(name == NULL)
    {
        return E_INPUT_ERROR;
    }
    LYINFLOG("%s\n", name);
    ret = add_lock(name);
    return ret;
}

int qser_wakelock_lock(int fd)
{

    int ret;
    if(fd < 0 || fd >= MAX_LOCK_NUM)
    {
        return E_INPUT_ERROR;
    }
    ret = read_lock_table();
    ret = acquire_wake_lock( 0, lock_status.lock_name[fd]);
    return ret;
}

int qser_wakelock_unlock(int fd)
{
    int ret;
    if(fd < 0 || fd >= MAX_LOCK_NUM)
    {
        return E_INPUT_ERROR;
    }
    ret = read_lock_table();
    if(strlen(lock_status.lock_name[fd]) == 0)
    {
        LYINFLOG("%d is null\n", fd);
        return -1;
    }
    ret = release_wake_lock(lock_status.lock_name[fd]);
    return ret;
}

int qser_wakelock_destroy(int fd)
{
    int ret;
    if(fd < 0 || fd >= MAX_LOCK_NUM)
    {
        return E_INPUT_ERROR;
    }
    ret = delete_lock(fd);
    return ret;
}

DEFINE_LYNQ_LIB_LOG(LYNQ_QSER_AUTOSUSPEND)

#ifdef __cplusplus
}
#endif