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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | /* mailbox_r.c */ /* * Copyright (c) 1997-2010, 2013-2014 Wind River Systems, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "receiver.h" #include "master.h" #ifdef MAILBOX_BENCH /* * Function prototypes. */ int mailbox_get(kmbox_t mailbox,int size,int count,unsigned int* time); /* * Function declarations. */ /* mailbox transfer speed test */ /** * * @brief Receive task * * @return N/A */ void mailrecvtask(void) { int getsize; unsigned int gettime; int getcount; GetInfo getinfo; getcount = NR_OF_MBOX_RUNS; getsize = 0; mailbox_get(MAILB1, getsize, getcount, &gettime); getinfo.time = gettime; getinfo.size = getsize; getinfo.count = getcount; /* acknowledge to master */ task_fifo_put(MB_COMM, &getinfo, TICKS_UNLIMITED); for (getsize = 8; getsize <= MESSAGE_SIZE; getsize <<= 1) { mailbox_get(MAILB1, getsize, getcount, &gettime); getinfo.time = gettime; getinfo.size = getsize; getinfo.count = getcount; /* acknowledge to master */ task_fifo_put(MB_COMM, &getinfo, TICKS_UNLIMITED); } } /** * * @brief Receive data portions from the specified mailbox * * @return 0 * * @param mailbox The mailbox to read data from. * @param size Size of each data portion. * @param count Number of data portions. * @param time Resulting time. */ int mailbox_get(kmbox_t mailbox, int size, int count, unsigned int* time) { int i; unsigned int t; struct k_msg Message; Message.tx_task = ANYTASK; Message.rx_data = data_recv; Message.size = size; /* sync with the sender */ task_sem_take(SEM0, TICKS_UNLIMITED); t = BENCH_START(); for (i = 0; i < count; i++) { task_mbox_get(mailbox, &Message, TICKS_UNLIMITED); } t = TIME_STAMP_DELTA_GET(t); *time = SYS_CLOCK_HW_CYCLES_TO_NS_AVG(t, count); if (bench_test_end() < 0) { PRINT_OVERFLOW_ERROR(); } return 0; } #endif /* MAILBOX_BENCH */ |