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/*
* Copyright © 2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Damien Lespiau <damien.lespiau@intel.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "igt_core.h"
#include "igt_debugfs.h"
#include "igt_kms.h"
typedef struct {
int fd;
int pipe;
int n_crcs;
} display_crc_t;
static int pipe_from_str(const char *str)
{
unsigned char c;
if (!str || strlen(str) != 1)
return -1;
c = str[0];
if (c >= 'A' && c <= 'C')
return c - 'A';
if (c >= 'a' && c <= 'c')
return c - 'a';
if (c >= '0' && c <= '3')
return c - '0';
return -1;
}
static void print_crcs(display_crc_t *ctx)
{
igt_pipe_crc_t *pipe_crc;
igt_crc_t crc;
char *crc_str;
int i;
pipe_crc = igt_pipe_crc_new(ctx->fd, ctx->pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
for (i = 0; i < ctx->n_crcs; i++) {
igt_pipe_crc_collect_crc(pipe_crc, &crc);
crc_str = igt_crc_to_string(&crc);
printf("CRC on pipe %s: %s\n", kmstest_pipe_name(ctx->pipe),
crc_str);
free(crc_str);
}
igt_pipe_crc_free(pipe_crc);
}
static display_crc_t ctx;
int main(int argc, char **argv)
{
int opt;
ctx.n_crcs = 1;
while ((opt = getopt(argc, argv, "p:n:")) != -1) {
switch (opt) {
case 'p':
ctx.pipe = pipe_from_str(optarg);
if (ctx.pipe == -1) {
fprintf(stderr, "Unknown pipe %s\n", optarg);
exit(1);
}
break;
case 'n':
ctx.n_crcs = atoi(optarg);
break;
default:
igt_assert(0);
}
}
print_crcs(&ctx);
}
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