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 #ifndef PREFIX 21 #define PREFIX "" 22 #endif 23 24 enum { 25 MBOX_LOG_NONE = 0, 26 MBOX_LOG_VERBOSE = 1, 27 MBOX_LOG_DEBUG = 2 28 } verbosity; 29 30 #define MSG_OUT(f_, ...) do { if (verbosity >= MBOX_LOG_DEBUG) { \ 31 mbox_log(LOG_INFO, f_, ##__VA_ARGS__); \ 32 } } while (0) 33 #define MSG_ERR(f_, ...) do { if (verbosity >= MBOX_LOG_VERBOSE) { \ 34 mbox_log(LOG_ERR, f_, ##__VA_ARGS__); \ 35 } } while (0) 36 37 void (*mbox_vlog)(int p, const char *fmt, va_list args); 38 39 void mbox_log_console(int p, const char *fmt, va_list args); 40 41 __attribute__((format(printf, 2, 3))) 42 void mbox_log(int p, const char *fmt, ...); 43 44 uint16_t get_u16(uint8_t *ptr); 45 46 void put_u16(uint8_t *ptr, uint16_t val); 47 48 uint32_t get_u32(uint8_t *ptr); 49 50 void put_u32(uint8_t *ptr, uint32_t val); 51 52 static inline uint32_t align_up(uint32_t val, uint32_t size) 53 { 54 return (((val) + (size) - 1) & ~((size) - 1)); 55 } 56 57 static inline uint32_t align_down(uint32_t val, uint32_t size) 58 { 59 return ((val) & ~(((size) - 1))); 60 } 61 62 static inline uint32_t min_u32(uint32_t a, uint32_t b) 63 { 64 if (a <= b) { 65 return a; 66 } 67 68 return b; 69 } 70 71 static inline int log_2(int val) 72 { 73 int ret = 0; 74 75 if (val <= 0) { 76 return -1; 77 } 78 79 while (val >>= 1) { 80 ret++; 81 } 82 83 return ret; 84 } 85 86 static inline bool is_power_of_2(unsigned val) 87 { 88 return __builtin_popcount(val) == 1; 89 } 90 91 char *get_dev_mtd(void); 92 93 #endif /* COMMON_H */ 94