1 /*
2 * Copyright © 2015 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Damien Lespiau <damien.lespiau@intel.com>
25 */
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <unistd.h>
31
32 #include "igt_core.h"
33 #include "igt_debugfs.h"
34 #include "igt_kms.h"
35
36 typedef struct {
37 int fd;
38 int pipe;
39 int n_crcs;
40 } display_crc_t;
41
pipe_from_str(const char * str)42 static int pipe_from_str(const char *str)
43 {
44 unsigned char c;
45
46 if (!str || strlen(str) != 1)
47 return -1;
48
49 c = str[0];
50
51 if (c >= 'A' && c <= 'C')
52 return c - 'A';
53
54 if (c >= 'a' && c <= 'c')
55 return c - 'a';
56
57 if (c >= '0' && c <= '3')
58 return c - '0';
59
60 return -1;
61 }
62
print_crcs(display_crc_t * ctx)63 static void print_crcs(display_crc_t *ctx)
64 {
65 igt_pipe_crc_t *pipe_crc;
66 igt_crc_t crc;
67 char *crc_str;
68 int i;
69
70 pipe_crc = igt_pipe_crc_new(ctx->fd, ctx->pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
71
72 for (i = 0; i < ctx->n_crcs; i++) {
73 igt_pipe_crc_collect_crc(pipe_crc, &crc);
74
75 crc_str = igt_crc_to_string(&crc);
76 printf("CRC on pipe %s: %s\n", kmstest_pipe_name(ctx->pipe),
77 crc_str);
78 free(crc_str);
79 }
80
81 igt_pipe_crc_free(pipe_crc);
82 }
83
84 static display_crc_t ctx;
85
main(int argc,char ** argv)86 int main(int argc, char **argv)
87 {
88 int opt;
89
90 ctx.n_crcs = 1;
91
92 while ((opt = getopt(argc, argv, "p:n:")) != -1) {
93 switch (opt) {
94 case 'p':
95 ctx.pipe = pipe_from_str(optarg);
96 if (ctx.pipe == -1) {
97 fprintf(stderr, "Unknown pipe %s\n", optarg);
98 exit(1);
99 }
100 break;
101 case 'n':
102 ctx.n_crcs = atoi(optarg);
103 break;
104 default:
105 igt_assert(0);
106 }
107 }
108
109 print_crcs(&ctx);
110 }
111