1 /* Copyright 2016 IBM 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 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 * 15 */ 16 17 #ifndef COMMON_H 18 #define COMMON_H 19 20 #include <stdarg.h> 21 #include <stdbool.h> 22 #include <stdint.h> 23 24 #ifndef PREFIX 25 #define PREFIX "" 26 #endif 27 28 enum verbose { 29 MBOX_LOG_NONE = 0, 30 MBOX_LOG_INFO = 1, 31 MBOX_LOG_DEBUG = 2 32 }; 33 34 extern enum verbose verbosity; 35 36 /* Error Messages */ 37 #define MSG_ERR(f_, ...) mbox_log(LOG_ERR, f_, ##__VA_ARGS__) 38 /* Informational Messages */ 39 #define MSG_INFO(f_, ...) do { if (verbosity >= MBOX_LOG_INFO) { \ 40 mbox_log(LOG_INFO, f_, ##__VA_ARGS__); \ 41 } } while (0) 42 /* Debug Messages */ 43 #define MSG_DBG(f_, ...) do { if (verbosity >= MBOX_LOG_DEBUG) { \ 44 mbox_log(LOG_DEBUG, f_, ##__VA_ARGS__); \ 45 } } while(0) 46 47 extern void (*mbox_vlog)(int p, const char *fmt, va_list args); 48 49 #ifdef __cplusplus 50 extern "C" { 51 #endif 52 53 void mbox_log_console(int p, const char *fmt, va_list args); 54 55 __attribute__((format(printf, 2, 3))) 56 void mbox_log(int p, const char *fmt, ...); 57 58 uint16_t get_u16(uint8_t *ptr); 59 60 void put_u16(uint8_t *ptr, uint16_t val); 61 62 uint32_t get_u32(uint8_t *ptr); 63 64 void put_u32(uint8_t *ptr, uint32_t val); 65 66 static inline uint32_t align_up(uint32_t val, uint32_t size) 67 { 68 return (((val) + (size) - 1) & ~((size) - 1)); 69 } 70 71 static inline uint32_t align_down(uint32_t val, uint32_t size) 72 { 73 return ((val) & ~(((size) - 1))); 74 } 75 76 static inline uint32_t min_u32(uint32_t a, uint32_t b) 77 { 78 if (a <= b) { 79 return a; 80 } 81 82 return b; 83 } 84 85 static inline int log_2(int val) 86 { 87 int ret = 0; 88 89 if (val <= 0) { 90 return -1; 91 } 92 93 while (val >>= 1) { 94 ret++; 95 } 96 97 return ret; 98 } 99 100 static inline bool is_power_of_2(unsigned val) 101 { 102 return __builtin_popcount(val) == 1; 103 } 104 105 char *get_dev_mtd(void); 106 107 #ifdef __cplusplus 108 } 109 #endif 110 111 #endif /* COMMON_H */ 112