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// SPDX-License-Identifier: MIT
/*
* Copyright © 2025 Intel Corporation
*/
#include <fcntl.h>
#include <stdio.h>
#include "igt.h"
#define MAX_HDCP_BUF_LEN 5000
typedef struct data {
int fd;
igt_display_t display;
struct igt_fb red, green;
int height, width;
} data_t;
static const char *get_hdcp_version(int fd, char *connector_name)
{
char buf[MAX_HDCP_BUF_LEN];
int ret;
ret = igt_debugfs_connector_dir(fd, connector_name, O_RDONLY);
if (ret < 0) {
fprintf(stderr, "Failed to open connector directory\n");
return NULL;
}
if (is_intel_device(fd))
igt_debugfs_simple_read(ret, "i915_hdcp_sink_capability", buf, sizeof(buf));
else
igt_debugfs_simple_read(ret, "hdcp_sink_capability", buf, sizeof(buf));
close(ret);
if (strstr(buf, "HDCP1.4") && strstr(buf, "HDCP2.2"))
return "HDCP1.4 and HDCP2.2";
else if (strstr(buf, "HDCP1.4"))
return "HDCP1.4";
else if (strstr(buf, "HDCP2.2"))
return "HDCP2.2";
else
return "No HDCP support";
}
static void get_hdcp_info(data_t *data)
{
char *output_name;
drmModeRes *res = drmModeGetResources(data->fd);
if (!res) {
fprintf(stderr, "Failed to get DRM resources\n");
return;
}
fprintf(stderr, "Connectors:\n");
fprintf(stderr, "id\tencoder\tstatus\t\ttype\tHDCP\n");
for (int i = 0; i < res->count_connectors; i++) {
drmModeConnector *c;
c = drmModeGetConnectorCurrent(data->fd, res->connectors[i]);
if (!c)
continue;
asprintf(&output_name, "%s-%d",
kmstest_connector_type_str(c->connector_type),
c->connector_type_id);
fprintf(stderr, "%d\t%d\t%s\t%s\t%s\n",
c->connector_id, c->encoder_id,
kmstest_connector_status_str(c->connection),
kmstest_connector_type_str(c->connector_type),
get_hdcp_version(data->fd, output_name));
drmModeFreeConnector(c);
}
drmModeFreeResources(res);
}
static void print_usage(void)
{
fprintf(stderr, "Usage: intel_hdcp [OPTIONS]\n");
fprintf(stderr, "Options:\n");
fprintf(stderr, "-i, --info Get HDCP Information\n");
fprintf(stderr, "-h, --help Display this help message\n");
}
static void test_init(data_t *data)
{
data->fd = __drm_open_driver(DRIVER_ANY);
if (data->fd < 0) {
fprintf(stderr, "Failed to open DRM driver\n");
exit(EXIT_FAILURE);
}
igt_display_require(&data->display, data->fd);
igt_display_require_output(&data->display);
}
int main(int argc, char **argv)
{
data_t data;
int option;
static const char optstr[] = "hi";
struct option long_opts[] = {
{"help", no_argument, NULL, 'h'},
{"info", no_argument, NULL, 'i'},
{NULL, 0, NULL, 0 }
};
test_init(&data);
while ((option = getopt_long(argc, argv, optstr, long_opts, NULL)) != -1) {
switch (option) {
case 'i':
get_hdcp_info(&data);
break;
case 'h':
default:
print_usage();
break;
}
}
}
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