int DRV_GET_CHIPID(unsigned char* buf,int length)
{
unsigned int i = 0;
int ret = 0;
if(NULL == buf)
{
efuse_print_error("die id buf is error.\n");
return EFUSE_ERROR;
}
if(length < EFUSE_CHIPID_LEN)
{
efuse_print_error("die id lenth is error.\n");
return EFUSE_ERROR;
}
memset(buf, 0, EFUSE_CHIPID_LEN);
pr_info("efuse read start group %d length %d.\n", EFUSE_GRP_CHIPID, EFUSE_CHIPID_SIZE);
if(0 != (ret = bsp_efuse_read((u32*)buf, EFUSE_GRP_CHIPID, EFUSE_CHIPID_SIZE)))
{
efuse_print_error("chip id read efuse error.\n");
return READ_EFUSE_ERROR;
}
for(i = 0; i < EFUSE_CHIPID_SIZE; i++)
{
pr_info("efuse end buf[%d] is 0x%x.\n", i, buf[i]);
}
pr_info("efuse read end ret %d\n", ret);
return EFUSE_OK;
}
/*****************************************************************************
* 函 数 名 : bsp_efuse_read
*
* 功能描述 : 按组读取EFUSE中的数据
*
* 输入参数 : group 起始group
* num 读取长度(word数,不超过512/4=128)
* 输出参数 : pBuf EFUSE中的数据
*
* 返 回 值 :
*
* 其它说明 :
*
*****************************************************************************/
int bsp_efuse_read(u32* pBuf, const u32 group, const u32 num)
{
int length = 0;
u32 *buf = efuse_buf;
u32 chan_id = ICC_CHN_IFC << 16 | IFC_RECV_FUNC_EFUSE;
EFUSE_DATA_STRU msg;
if((0 == num) || (group + num > EFUSE_MAX_SIZE) || (NULL == pBuf) || (num > EFUSE_MAX_ALLOW_SIZE))
{
efuse_print_error(" parameter error, group=%d, num=%d, pBuf=0x%x.\n", group, num, pBuf);
return EFUSE_ERROR;
}
msg.start = group;
msg.len = num;
msg.opt = (u32)EFUSE_READ;
osl_sem_down(&efuse_queue_sem_id);
length = bsp_icc_send(ICC_CPU_APP, chan_id, (unsigned char*)&msg, sizeof(EFUSE_DATA_STRU));
if((unsigned int)length != sizeof(EFUSE_DATA_STRU))
{
osl_sem_up(&efuse_queue_sem_id);
efuse_print_error("send len(%x) != expected len(%x).\n", length, sizeof(EFUSE_DATA_STRU));
return EFUSE_ERROR;
}
/* coverity[lock] */
osl_sem_down(&efuse_sem_id);
if(0 != efuse_ret)
{
osl_sem_up(&efuse_queue_sem_id);
efuse_print_error("efuse icc write is fail, err= %d.\n", efuse_ret);
/* coverity[missing_unlock] */
return EFUSE_ERROR;
}
else
{
memcpy(pBuf, buf, EFUSE_GROUP_SIZE * num);
}
osl_sem_up(&efuse_queue_sem_id);
/* coverity[missing_unlock] */
return EFUSE_OK;
}
int efuse_init(void)
{
int ret;
u32 chan_id = ICC_CHN_IFC << 16 | IFC_RECV_FUNC_EFUSE;
if(1 == is_efuse_init)
{
return EFUSE_OK;
}
osl_sem_init(0, &efuse_sem_id);
osl_sem_init(1, &efuse_queue_sem_id);
ret = bsp_icc_event_register(chan_id, (read_cb_func)bsp_efuse_data_receive, NULL, NULL, NULL);/* [false alarm]:屏蔽Fortify错误 */
if(ICC_OK != ret)
{
efuse_print_error("register is error.\n");
return EFUSE_ERROR;
}
is_efuse_init = 1;/* [false alarm]:屏蔽Fortify错误 */
efuse_print_info("efuse init ok.\n");
return EFUSE_OK;
}
void DRV_DIEID_TEST(void)
{
int i = 0;
char *buf = kzalloc(EFUSE_DIEID_LEN, GFP_KERNEL);
if(NULL == buf)
{
efuse_print_info("alloc mem is fail.\n");
return;
}
if(EFUSE_OK == DRV_GET_DIEID(buf, EFUSE_DIEID_LEN))
{
for(i = 0; i < EFUSE_DIEID_LEN; i++)
{
efuse_print_info("0x%x \n", *(buf+i));
}
}
else
{
efuse_print_error("DRV_GET_DIEID is fail.\n");
}
kfree(buf);
}
void efuse_handle_work(struct work_struct *work)
{
u32 i = 0;
int length = 0;
u32 channel_id = ICC_CHN_IFC << 16 | IFC_RECV_FUNC_EFUSE;
EFUSE_DATA_STRU *msg = &efuse_msg;
if(EFUSE_READ == (u32)msg->opt)
{
if(1 == efuse_debug_flag)
{
pr_info("efuse read start group %d length %d.\n", msg->start, msg->len);
}
msg->ret = bsp_efuse_read(msg->buf, msg->start,msg->len);
if(1 == efuse_debug_flag)
{
pr_info("efuse read end group %d length %d.\n", msg->start, msg->len);
for(i = 0;i < msg->len;i++)
{
pr_info("efuse buf[%d] is 0x%x.\n", i, msg->buf[i]);
}
pr_info("efuse read ret %d\n", msg->ret);
}
}
else if(EFUSE_WRITE == (u32)msg->opt)
{
if(1 == efuse_debug_flag)
{
pr_info("efuse write start group %d length %d.\n", msg->start, msg->len);
for(i = 0;i < msg->len;i++)
{
pr_info("efuse buf[%d] is 0x%x.\n", i, msg->buf[i]);
}
}
msg->ret = bsp_efuse_write(msg->buf, msg->start,msg->len);
if(1 == efuse_debug_flag)
{
pr_info("efuse write ret %d.\n", msg->ret);
}
}
else
{
msg->ret = EFUSE_ERROR;
}
length = bsp_icc_send(ICC_CPU_MODEM, channel_id, (unsigned char*)msg, sizeof(EFUSE_DATA_STRU));
if(length != (int)sizeof(EFUSE_DATA_STRU))
{
efuse_print_error("send len(%x) != expected len(%lu).\n", length, (unsigned long)sizeof(EFUSE_DATA_STRU));
return;
}
}
void bsp_efuse_data_receive(void)
{
int length = 0;
u32 channel_id = ICC_CHN_IFC << 16 | IFC_RECV_FUNC_EFUSE;
length = bsp_icc_read(channel_id, (u8*)&efuse_msg, sizeof(EFUSE_DATA_STRU));
if(length != (int)sizeof(EFUSE_DATA_STRU))
{
efuse_print_error("read len(%x) != expected len(%lu).\n", length, (unsigned long)sizeof(EFUSE_DATA_STRU));
return;
}
schedule_work(&efuse_work);
}
static int __init hi_efuse_comm_init(void)
{
int ret = 0;
u32 chan_id = ICC_CHN_IFC << 16 | IFC_RECV_FUNC_EFUSE;
INIT_WORK(&efuse_work, efuse_handle_work);
ret = bsp_icc_event_register(chan_id, (read_cb_func)bsp_efuse_data_receive, NULL, NULL, NULL);
if(0 != ret)
{
efuse_print_error("efuse icc register is error.\n");
return EFUSE_ERROR;
}
efuse_print_info("efuse comm init ok.\n");
return EFUSE_OK;
}
void bsp_efuse_show(void)
{
unsigned int i = 0;
unsigned int value = 0;
for(i = 0;i < EFUSE_MAX_SIZE;i++)
{
if(OK == bsp_efuse_read(&value, i, 1))
{
efuse_print_info("efuse group%d value = 0x%x.\n ", i, value);
}
else
{
efuse_print_error("efuse group%d read fail.\n", i);
return;
}
}
}
static int bsp_efuse_data_receive(unsigned int channel_id , unsigned int len, void* context)
{
int length = 0;
u32 *buf = efuse_buf;
EFUSE_DATA_STRU msg ;
length = bsp_icc_read(channel_id, (u8*)&msg, sizeof(EFUSE_DATA_STRU));
if(length != (int)sizeof(EFUSE_DATA_STRU))
{
efuse_print_error("read len(%x) != expected len(%x).\n", length, sizeof(EFUSE_DATA_STRU));
efuse_ret = -1;
osl_sem_up(&efuse_sem_id);
return EFUSE_ERROR;
}
memcpy(buf, msg.buf, EFUSE_MAX_ALLOW_SIZE*EFUSE_GROUP_SIZE);
efuse_ret = msg.ret;
osl_sem_up(&efuse_sem_id);
return EFUSE_OK;
}