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 enum PlatSleepDevID
29 {
30 Stm32sleepDevTim2, /* we use this for short sleeps in WFI mode */
31 Stm32sleepDevTim4, /* input capture uses this, potentially */
32 Stm32sleepDevTim5, /* input capture uses this, potentially */
33 Stm32sleepDevTim9, /* input capture uses this, potentially */
34 Stm32sleepWakeup, /* we use this to wakeup from AP */
35 Stm32sleepDevSpi2, /* we use this to prevent stop mode during spi2 xfers */
36 Stm32sleepDevSpi3, /* we use this to prevent stop mode during spi3 xfers */
37 Stm32sleepDevI2c1, /* we use this to prevent stop mode during i2c1 xfers */
38
39 Stm32sleepDevNum, //must be last always, and must be <= PLAT_MAX_SLEEP_DEVS
40 };
41
platGetInternalAppList(uint32_t * numAppsP)42 static inline const struct AppHdr* platGetInternalAppList(uint32_t *numAppsP)
43 {
44 extern const struct AppHdr __internal_app_start, __internal_app_end;
45
46 *numAppsP = &__internal_app_end - &__internal_app_start;
47 return &__internal_app_start;
48 }
49
platGetSharedAreaInfo(uint32_t * areaSzP)50 static inline uint8_t* platGetSharedAreaInfo(uint32_t *areaSzP)
51 {
52 extern uint8_t __shared_start[];
53 extern uint8_t __shared_end[];
54
55 *areaSzP = __shared_end - __shared_start;
56 return __shared_start;
57 }
58
59 //used for dropbox
60 void* platGetPersistentRamStore(uint32_t *bytes);
61
platWake(void)62 static inline void platWake(void)
63 {
64 }
65
66 // GCC aligns 64-bit types on an 8-byte boundary, but Cortex-M4 only requires
67 // 4-byte alignment for these types. So limit the return value, as we're
68 // interested in the minimum alignment requirement.
69 #if defined(__GNUC__) && !defined(alignof)
70 #define alignof(type) ((__alignof__(type) > 4) ? 4 : __alignof__(type))
71 #endif
72
73 #ifdef __cplusplus
74 }
75 #endif
76
77 #endif
78