1 /* mailbox_r.c */
2
3 /*
4 * Copyright (c) 1997-2010, 2013-2014 Wind River Systems, Inc.
5 *
6 * SPDX-License-Identifier: Apache-2.0
7 */
8
9 #include "receiver.h"
10 #include "master.h"
11
12 /*
13 * Function prototypes.
14 */
15 void mailbox_get(struct k_mbox *mailbox,
16 int size,
17 int count,
18 unsigned int *time);
19
20 /*
21 * Function declarations.
22 */
23
24 /* mailbox transfer speed test */
25
26 /**
27 * @brief Receive task
28 */
mailrecvtask(void)29 void mailrecvtask(void)
30 {
31 int getsize;
32 unsigned int gettime;
33 int getcount;
34 struct getinfo getinfo;
35
36 getcount = NR_OF_MBOX_RUNS;
37
38 getsize = 0;
39 mailbox_get(&MAILB1, getsize, getcount, &gettime);
40 getinfo.time = gettime;
41 getinfo.size = getsize;
42 getinfo.count = getcount;
43 /* acknowledge to master */
44 k_msgq_put(&MB_COMM, &getinfo, K_FOREVER);
45
46 for (getsize = 8; getsize <= MESSAGE_SIZE; getsize <<= 1) {
47 mailbox_get(&MAILB1, getsize, getcount, &gettime);
48 getinfo.time = gettime;
49 getinfo.size = getsize;
50 getinfo.count = getcount;
51 /* acknowledge to master */
52 k_msgq_put(&MB_COMM, &getinfo, K_FOREVER);
53 }
54 }
55
56
57 /**
58 * @brief Receive data portions from the specified mailbox
59 *
60 * @return 0
61 *
62 * @param mailbox The mailbox to read data from.
63 * @param size Size of each data portion.
64 * @param count Number of data portions.
65 * @param time Resulting time.
66 */
mailbox_get(struct k_mbox * mailbox,int size,int count,unsigned int * time)67 void mailbox_get(struct k_mbox *mailbox,
68 int size,
69 int count,
70 unsigned int *time)
71 {
72 int i;
73 timing_t start;
74 timing_t end;
75 int32_t return_value = 0;
76 struct k_mbox_msg Message;
77
78 Message.rx_source_thread = K_ANY;
79 Message.size = size;
80
81 /* sync with the sender */
82 k_sem_take(&SEM0, K_FOREVER);
83 start = timing_timestamp_get();
84 for (i = 0; i < count; i++) {
85 return_value |= k_mbox_get(mailbox,
86 &Message,
87 &data_recv,
88 K_FOREVER);
89 }
90 end = timing_timestamp_get();
91 *time = timing_cycles_get(&start, &end);
92
93 if (return_value != 0) {
94 k_panic();
95 }
96 }
97
