1 /*
2  * This file is part of the MicroPython project, http://micropython.org/
3  *
4  * The MIT License (MIT)
5  *
6  * Copyright (c) 2018-2019 Damien P. George
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a copy
9  * of this software and associated documentation files (the "Software"), to deal
10  * in the Software without restriction, including without limitation the rights
11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12  * copies of the Software, and to permit persons to whom the Software is
13  * furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24  * THE SOFTWARE.
25  */
26 
27 #ifndef MICROPY_INCLUDED_STM32_NIMBLE_NIMBLE_NIMBLE_NPL_OS_H
28 #define MICROPY_INCLUDED_STM32_NIMBLE_NIMBLE_NIMBLE_NPL_OS_H
29 
30 // This is included by nimble/nimble_npl.h -- include that rather than this file directly.
31 
32 #include <stdint.h>
33 #include <limits.h>
34 
35 // --- Configuration of NimBLE data structures --------------------------------
36 
37 // This is used at runtime to align allocations correctly.
38 #define BLE_NPL_OS_ALIGNMENT (sizeof(uintptr_t))
39 #define BLE_NPL_TIME_FOREVER (0xffffffff)
40 
41 // This is used at compile time to force struct member alignment. See
42 // os_mempool.h for where this is used (none of these three macros are defined
43 // by default).
44 #define OS_CFG_ALIGN_4 (4)
45 #define OS_CFG_ALIGN_8 (8)
46 #if (ULONG_MAX == 0xffffffffffffffff)
47 #define OS_CFG_ALIGNMENT (OS_CFG_ALIGN_8)
48 #else
49 #define OS_CFG_ALIGNMENT (OS_CFG_ALIGN_4)
50 #endif
51 
52 typedef uint32_t ble_npl_time_t;
53 typedef int32_t ble_npl_stime_t;
54 
55 struct ble_npl_event {
56     ble_npl_event_fn *fn;
57     void *arg;
58     bool pending;
59     struct ble_npl_event *prev;
60     struct ble_npl_event *next;
61 };
62 
63 struct ble_npl_eventq {
64     struct ble_npl_event *head;
65     struct ble_npl_eventq *nextq;
66 };
67 
68 struct ble_npl_callout {
69     bool active;
70     uint32_t ticks;
71     struct ble_npl_eventq *evq;
72     struct ble_npl_event ev;
73     struct ble_npl_callout *nextc;
74 };
75 
76 struct ble_npl_mutex {
77     volatile uint8_t locked;
78 };
79 
80 struct ble_npl_sem {
81     volatile uint16_t count;
82 };
83 
84 // --- Called by the MicroPython port -----------------------------------------
85 
86 void mp_bluetooth_nimble_os_eventq_run_all(void);
87 void mp_bluetooth_nimble_os_callout_process(void);
88 
89 // --- Must be provided by the MicroPython port -------------------------------
90 
91 void mp_bluetooth_nimble_hci_uart_wfi(void);
92 
93 #endif // MICROPY_INCLUDED_STM32_NIMBLE_NIMBLE_NPL_OS_H
94