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 { 29 MBOX_LOG_NONE = 0, 30 MBOX_LOG_VERBOSE = 1, 31 MBOX_LOG_DEBUG = 2 32 } verbosity; 33 34 #define MSG_OUT(f_, ...) do { if (verbosity >= MBOX_LOG_DEBUG) { \ 35 mbox_log(LOG_INFO, f_, ##__VA_ARGS__); \ 36 } } while (0) 37 #define MSG_ERR(f_, ...) do { if (verbosity >= MBOX_LOG_VERBOSE) { \ 38 mbox_log(LOG_ERR, f_, ##__VA_ARGS__); \ 39 } } while (0) 40 41 void (*mbox_vlog)(int p, const char *fmt, va_list args); 42 43 void mbox_log_console(int p, const char *fmt, va_list args); 44 45 __attribute__((format(printf, 2, 3))) 46 void mbox_log(int p, const char *fmt, ...); 47 48 uint16_t get_u16(uint8_t *ptr); 49 50 void put_u16(uint8_t *ptr, uint16_t val); 51 52 uint32_t get_u32(uint8_t *ptr); 53 54 void put_u32(uint8_t *ptr, uint32_t val); 55 56 static inline uint32_t align_up(uint32_t val, uint32_t size) 57 { 58 return (((val) + (size) - 1) & ~((size) - 1)); 59 } 60 61 static inline uint32_t align_down(uint32_t val, uint32_t size) 62 { 63 return ((val) & ~(((size) - 1))); 64 } 65 66 static inline uint32_t min_u32(uint32_t a, uint32_t b) 67 { 68 if (a <= b) { 69 return a; 70 } 71 72 return b; 73 } 74 75 static inline int log_2(int val) 76 { 77 int ret = 0; 78 79 if (val <= 0) { 80 return -1; 81 } 82 83 while (val >>= 1) { 84 ret++; 85 } 86 87 return ret; 88 } 89 90 static inline bool is_power_of_2(unsigned val) 91 { 92 return __builtin_popcount(val) == 1; 93 } 94 95 char *get_dev_mtd(void); 96 97 #endif /* COMMON_H */ 98