int altek6045_exec_cmd(const hwextisp_intf_t* i, hwcam_config_data_t *data)
{
	int rc = 0;
	u8 *in_buf = NULL, *out_buf = NULL;
	u32 opcode, dir_type, block_response, out_len, in_len;
	bool out_to_block;

	cam_notice("enter %s cmd=0x%x.", __func__, data->cmd);

	dir_type = data->cmd & EXTISP_CMD_DIR_FLAG_MASK;
	block_response = data->cmd & EXTISP_CMD_RESP_FLAG_MASK;
	out_len = in_len = (data->cmd & EXTISP_CMD_LEN_MASK)>>EXTISP_CMD_LEN_SHIT;
	opcode = (data->cmd & EXTISP_CMD_OPCODE_MASK)>>EXTISP_CMD_OPCODE_SHIT;

	out_buf = in_buf = data->u.buf;
	out_to_block = (EXTISP_BLOCK_RESPONSE_CMD == block_response)? true: false;

	/* allocate kernel buf: override out_buf out_len*/
	if (out_to_block) {
		out_len = data->ext_buf.user_buf_len;
		if (out_len > 4096) {
			cam_err("%s invalid ext_buf_len=%d", __func__, out_len);
			return -EINVAL;
		}
		out_buf = kmalloc(out_len, GFP_KERNEL);
		if (NULL == out_buf) {
			cam_err("%s kmalloc failed", __func__);
			return -ENOMEM;;
		}
	}

	if (EXTISP_INOUT_CMD == dir_type) {
		rc = misp_exec_bidir_cmd((u16)opcode, data->u.buf, in_len,
							out_to_block, out_buf, out_len);
	} else if (EXTISP_SET_CMD == dir_type) {
		rc = misp_exec_unidir_cmd((u16)opcode, true,
							out_to_block, in_buf, in_len);
	} else if (EXTISP_GET_CMD == dir_type) {
		rc = misp_exec_unidir_cmd((u16)opcode, false,
							out_to_block, out_buf, out_len);
	} else {
		cam_err("%s unkown cmd direction", __func__);
		rc = -EINVAL;
	}

	/* reclaimed kernel buf*/
	if (out_to_block) {
		if (copy_to_user(data->ext_buf.user_buf_ptr, out_buf, out_len)) {
			cam_err("%s copy to user failed", __func__);
			rc = -EFAULT;
		}
		kfree(out_buf);
	}

	return rc;
}
int altek6045_exec_cmd(const hwextisp_intf_t* i, hwextisp_config_data_t *data)
{
    int rc = 0;
    u8 *in_buf = NULL, *out_buf = NULL;
    u32 opcode, dir_type, block_response, out_len, in_len, bulk_len;
    bool out_to_block, out_from_block;

    if (get_boot_into_recovery_flag()||(misp_cmd_filter==1)) {
        cam_info("%s cmd=0x%x is blocked", __func__, data->cmd);
        return 0;
    }

    if(((data->cmd & 0x0000FFFF )!= 0x2106)&&((data->cmd & 0x0000FFFF )!= 0x2105))
        cam_info("%s cmd=0x%x", __func__, data->cmd);

    dir_type = (data->cmd & EXTISP_CMD_DIR_FLAG_MASK)>>EXTISP_CMD_DIR_FLAG_SHIT;
    block_response = (data->cmd & EXTISP_CMD_RESP_FLAG_MASK)>>EXTISP_CMD_RESP_FLAG_SHIT;
    out_len = (data->cmd & EXTISP_CMD_OUT_LEN_MASK)>>EXTISP_CMD_OUT_LEN_SHIT;
    in_len = (data->cmd & EXTISP_CMD_IN_LEN_MASK)>>EXTISP_CMD_IN_LEN_SHIT;
    opcode = (data->cmd & EXTISP_CMD_OPCODE_MASK)>>EXTISP_CMD_OPCODE_SHIT;
    out_buf = in_buf = data->u.buf;
    out_to_block = (EXTISP_BLOCK_RESPONSE_CMD == block_response)? true: false;
    out_from_block = (EXTISP_BLOCK_WRITE_CMD == block_response) ? true : false;

    /* allocate kernel buf: override out_buf out_len*/
    if (out_to_block) {
        out_len = data->ext_buf.user_buf_len;
        if (out_len > 4096) {
            cam_err("%s invalid ext_buf_len=%d", __func__, out_len);
            return -EINVAL;
        }
        out_buf = kmalloc(out_len, GFP_KERNEL);
        if (NULL == out_buf) {
            cam_err("%s kmalloc failed", __func__);
            return -ENOMEM;;
        }
        memset(out_buf,0,out_len);
    }

    if(out_from_block) {
        bulk_len = data->ext_buf.user_buf_len;
        out_buf = kmalloc(bulk_len, GFP_KERNEL);
        if(copy_from_user(out_buf, data->ext_buf.user_buf_ptr, bulk_len)) {
            cam_err("%s copy from user failed", __func__);
            rc = -EFAULT;
        }
    }

    if (EXTISP_INOUT_CMD == dir_type) {
        if(out_from_block) {
            rc = misp_exec_write_block_res((u16)opcode, in_buf, in_len,
                                           out_to_block, out_buf,bulk_len, out_len);
        } else {
            rc = misp_exec_bidir_cmd((u16)opcode, data->u.buf, in_len,
                                     out_to_block, out_buf, out_len);
        }
    } else if (EXTISP_SET_CMD == dir_type) {
        if(out_from_block) {
            rc = misp_exec_write_block((u16)opcode, in_buf, in_len, out_buf, bulk_len);
        } else {
            rc = misp_exec_unidir_cmd((u16)opcode, true,
                                      out_to_block, in_buf, in_len);
        }
    } else if (EXTISP_GET_CMD == dir_type) {
        rc = misp_exec_unidir_cmd((u16)opcode, false,
                                  out_to_block, out_buf, out_len);
    } else {
        cam_err("%s unkown cmd direction", __func__);
        rc = -EINVAL;
    }

    /* reclaimed kernel buf*/
    if (out_to_block) {
        if (copy_to_user(data->ext_buf.user_buf_ptr, out_buf, out_len)) {
            cam_err("%s copy to user failed", __func__);
            rc = -EFAULT;
        }
        kfree(out_buf);
        out_buf = NULL;
    }
    if(out_from_block) {
        if(out_buf) {
            kfree(out_buf);
        }
    }
    out_buf = NULL;

    return rc;
}