mbtk/libgsw_lib/gsw_oem_rw_interface.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <mtd/mtd-user.h>
#include <errno.h>
#include <dlfcn.h>

#include "gsw_oem_rw_interface.h"


#ifndef LOG_ERR_LEVEL
#define LOG_ERR_LEVEL  3      /* error conditions */
#endif
#ifndef LOG_WARN_LEVEL
#define LOG_WARN_LEVEL 4   /* warning conditions */
#endif
#ifndef LOG_INFO_LEVEL
#define LOG_INFO_LEVEL 6      /* informational */
#endif
#ifndef LOG_DEBUG_LEVEL
#define LOG_DEBUG_LEVEL 7     /* debug-level messages */
#endif
#ifndef LOG_VERBOSE_LEVEL
#define LOG_VERBOSE_LEVEL 8
#endif

#define ERASE_BLOCK_SIZE (256*1024)

#define LIB_PATH "/lib/libmbtk_lib.so"

#define GSW_OEM_RW "[HAL][GSW_OEM_RW]"

#define StatFunc(x,y) stat(x,y)

#define LOGV(fmt, args ...) \
    do{ \
        char *file_ptr_1001 = __FILE__; \
        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
        char line_1001[10] = {0}; \
        sprintf(line_1001, "%d", __LINE__); \
        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
            if(*ptr_1001 == '/') \
                 break; \
            ptr_1001--; \
        } \
        fun_ptr_log(LOG_VERBOSE_LEVEL, "%s#%s: "GSW_OEM_RW"" fmt, ptr_1001 + 1, line_1001, ##args); \
    } while(0)

#define LOGI(fmt, args...) \
    do{ \
        char *file_ptr_1001 = __FILE__; \
        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
        char line_1001[10] = {0}; \
        sprintf(line_1001, "%d", __LINE__); \
        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
            if(*ptr_1001 == '/') \
                 break; \
            ptr_1001--; \
        } \
        fun_ptr_log(LOG_INFO_LEVEL, "%s#%s: "GSW_OEM_RW"" fmt, ptr_1001 + 1, line_1001, ##args); \
    } while(0)

#define LOGD(fmt, args...) \
    do{ \
        char *file_ptr_1001 = __FILE__; \
        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
        char line_1001[10] = {0}; \
        sprintf(line_1001, "%d", __LINE__); \
        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
            if(*ptr_1001 == '/') \
                 break; \
            ptr_1001--; \
        } \
        fun_ptr_log(LOG_DEBUG_LEVEL, "%s#%s: "GSW_OEM_RW"" fmt, ptr_1001 + 1, line_1001, ##args); \
    } while(0)

#define LOGW(fmt, args...) \
    do{ \
        char *file_ptr_1001 = __FILE__; \
        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
        char line_1001[10] = {0}; \
        sprintf(line_1001, "%d", __LINE__); \
        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
            if(*ptr_1001 == '/') \
                 break; \
            ptr_1001--; \
        } \
        fun_ptr_log(LOG_WARN_LEVEL, "%s#%s: "GSW_OEM_RW"" fmt, ptr_1001 + 1, line_1001, ##args); \
    } while(0)

#define LOGE(fmt, args...) \
    do{ \
        char *file_ptr_1001 = __FILE__; \
        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
        char line_1001[10] = {0}; \
        sprintf(line_1001, "%d", __LINE__); \
        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
            if(*ptr_1001 == '/') \
                 break; \
            ptr_1001--; \
        } \
        fun_ptr_log(LOG_ERR_LEVEL, "%s#%s: "GSW_OEM_RW"" fmt, ptr_1001 + 1, line_1001, ##args); \
    } while(0)
    
typedef void (*mbtk_log)(int level, const char *format,...);
           
typedef int (*mbtk_oem_read_data_ext)(unsigned int block_id, void *data, unsigned int *len);
            
typedef int (*mbtk_oem_write_data_ext)(unsigned int block_id, void *data, unsigned int len);

static mbtk_log fun_ptr_log = NULL;

static mbtk_oem_read_data_ext mbtk_read_fun_ptr = NULL;
static mbtk_oem_write_data_ext mbtk_write_fun_ptr = NULL;

static void *handle = NULL;

static int  init_fun_handle()
{
    if(handle == NULL)
    {
        handle = dlopen(LIB_PATH, RTLD_NOW );
        if(handle == NULL)
        {
            return -1;
        }
        if(fun_ptr_log == NULL)
        {
            fun_ptr_log = (mbtk_log)dlsym(handle, "mbtk_log");
            if(fun_ptr_log ==  NULL)
            {
                return -1;
            }
        }
        if(mbtk_read_fun_ptr == NULL)
        {
            mbtk_read_fun_ptr = (mbtk_oem_read_data_ext)dlsym(handle, "mbtk_oem_read_data_ext");
            if(mbtk_read_fun_ptr ==  NULL)
            {
                return -1;
            }
        }
        if(mbtk_write_fun_ptr == NULL)
        {
            mbtk_write_fun_ptr = (mbtk_oem_write_data_ext)dlsym(handle, "mbtk_oem_write_data_ext");
            if(mbtk_write_fun_ptr ==  NULL)
            {
                return -1;
            }
        }
       
     }
    return 0;
}

static void deinit_fun_handle()
{
    if(handle != NULL)
    {
        dlclose(handle);
        handle = NULL;
    }
    
    fun_ptr_log = NULL;
    mbtk_write_fun_ptr = NULL;
    mbtk_read_fun_ptr = NULL;
    
}

/**
 * @brief Read data from spec block of flash
 * @param [in] unsigned int
 * @param [out] void *
 * @param [out] unsigned int * 
 * @retval GSW_HAL_SUCCESS\GSW_HAL_FAIL
 */

int gsw_oem_read_data_ext(unsigned int block_id, void *data, unsigned int *len) 
{

    int ret = -1;
    unsigned int actual_len = 0;
    char *temp_buffer = NULL;
    ret  = init_fun_handle();
    if(ret == -1)
    {
        printf(" init_fun_handle error ret %d\n",ret);
        deinit_fun_handle();
        return GSW_HAL_NORMAL_FAIL;
    }
   
    if (!data || !len) 
    {
        LOGE("invalid ：data or len us NULL\n");
        deinit_fun_handle();
        return GSW_HAL_ARG_INVALID;
    }

    temp_buffer = (char *)malloc(ERASE_BLOCK_SIZE);
    if (temp_buffer == NULL) 
    {
        LOGE("Failed to allocate read buffer ");
        deinit_fun_handle();
        return -1;
    }
    
    memset(temp_buffer, 0, ERASE_BLOCK_SIZE);
    
    ret = mbtk_read_fun_ptr(block_id,temp_buffer,&actual_len);
    if(ret != 0)
    {
        LOGE("mbtk_read_fun_ptr  failed");
        free(temp_buffer); 
        deinit_fun_handle();
        return GSW_HAL_NORMAL_FAIL;
    }
    *len = actual_len;
    memcpy(data, temp_buffer, *len);
    free(temp_buffer); 
    deinit_fun_handle();
    
    return GSW_HAL_SUCCESS;
}

/**
 * @brief Write data to spec block of flash
 * @param  [in] unsigned int
 * @param  [in] void *
 * @param  [in] unsigned int
 * @retval 0: success
 * @retval GSW_HAL_SUCCESS\GSW_HAL_FAIL
 */

int gsw_oem_write_data_ext(unsigned int block_id, void *data, unsigned int len) 
{
    int ret = -1;
    ret  = init_fun_handle();
    if(ret == -1)
    {
        printf("init log error ret %d\n",ret);
        deinit_fun_handle();
        return GSW_HAL_NORMAL_FAIL;
    }
    if (!data || len > ERASE_BLOCK_SIZE) 
    {
        LOGE("invalid data is NULL ");
        deinit_fun_handle();
        return GSW_HAL_ARG_INVALID;
    }
    
    ret = mbtk_write_fun_ptr(block_id,data,len);
    if(ret != 0)
    {
        LOGE("mbtk_write_fun_ptr  failed");
        deinit_fun_handle();
        return GSW_HAL_NORMAL_FAIL;
    }
    deinit_fun_handle();
    return GSW_HAL_SUCCESS;
}