1 // Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //     http://www.apache.org/licenses/LICENSE-2.0
7 //
8 // Unless required by applicable law or agreed to in writing, software
9 // distributed under the License is distributed on an "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 // See the License for the specific language governing permissions and
12 // limitations under the License.
13 
14 #ifndef _WL_State_H_
15 #define _WL_State_H_
16 #include "esp_err.h"
17 
18 /**
19 * @brief This structure is used to store current state of flash access
20 *
21 */
22 #if defined(_MSC_VER)
23 #define ALIGNED_(x) __declspec(align(x))
24 #else
25 #if defined(__GNUC__)
26 #define ALIGNED_(x) __attribute__ ((aligned(x)))
27 #endif
28 #endif
29 
30 typedef struct ALIGNED_(32) WL_State_s {
31 public:
32     uint32_t pos;           /*!< current dummy block position*/
33     uint32_t max_pos;       /*!< maximum amount of positions*/
34     uint32_t move_count;    /*!< total amount of move counts. Used to calculate the address*/
35     uint32_t access_count;  /*!< current access count*/
36     uint32_t max_count;     /*!< max access count when block will be moved*/
37     uint32_t block_size;    /*!< size of move block*/
38     uint32_t version;       /*!< state id used to identify the version of current libary implementaion*/
39     uint32_t device_id;     /*!< ID of current WL instance*/
40     uint32_t reserved[7];   /*!< Reserved space for future use*/
41     uint32_t crc;           /*!< CRC of structure*/
42 } wl_state_t;
43 
44 #ifndef _MSC_VER // MSVS has different format for this define
45 static_assert(sizeof(wl_state_t) % 16 == 0, "Size of wl_state_t structure should be compatible with flash encryption");
46 #endif // _MSC_VER
47 
48 #define WL_STATE_CRC_LEN_V1 offsetof(wl_state_t, device_id)
49 #define WL_STATE_CRC_LEN_V2 offsetof(wl_state_t, crc)
50 
51 #endif // _WL_State_H_
52