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 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 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 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
