1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef _STM32_PLAT_H_
18 #define _STM32_PLAT_H_
19
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23
24 #include <stdint.h>
25 #include <stdbool.h>
26 #include <seos.h>
27
28
29 enum PlatSleepDevID
30 {
31 Stm32sleepDevTim2, /* we use this for short sleeps in WFI mode */
32 Stm32sleepDevTim4, /* input capture uses this, potentially */
33 Stm32sleepDevTim5, /* input capture uses this, potentially */
34 Stm32sleepDevTim9, /* input capture uses this, potentially */
35 Stm32sleepWakeup, /* we use this to wakeup from AP */
36 Stm32sleepDevSpi2, /* we use this to prevent stop mode during spi2 xfers */
37 Stm32sleepDevSpi3, /* we use this to prevent stop mode during spi3 xfers */
38 Stm32sleepDevI2c1, /* we use this to prevent stop mode during i2c1 xfers */
39
40 Stm32sleepDevNum, //must be last always, and must be <= PLAT_MAX_SLEEP_DEVS
41 };
42
platGetInternalAppList(uint32_t * numAppsP)43 static inline const struct AppHdr* platGetInternalAppList(uint32_t *numAppsP)
44 {
45 extern const struct AppHdr __internal_app_start, __internal_app_end;
46
47 *numAppsP = &__internal_app_end - &__internal_app_start;
48 return &__internal_app_start;
49 }
50
platGetSharedAreaInfo(uint32_t * areaSzP)51 static inline uint8_t* platGetSharedAreaInfo(uint32_t *areaSzP)
52 {
53 extern uint8_t __shared_start[];
54 extern uint8_t __shared_end[];
55
56 *areaSzP = __shared_end - __shared_start;
57 return __shared_start;
58 }
59
60 //used for dropbox
61 void* platGetPersistentRamStore(uint32_t *bytes);
62
platWake(void)63 static inline void platWake(void)
64 {
65 }
66
67 // GCC aligns 64-bit types on an 8-byte boundary, but Cortex-M4 only requires
68 // 4-byte alignment for these types. So limit the return value, as we're
69 // interested in the minimum alignment requirement.
70 #if defined(__GNUC__) && !defined(alignof)
71 #define alignof(type) ((__alignof__(type) > 4) ? 4 : __alignof__(type))
72 #endif
73
74 #ifdef __cplusplus
75 }
76 #endif
77
78 #endif
79