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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "drmtools.h"
/* ------------------------------------------------------------------ */
static void drm_info(int devnr)
{
drmModeConnector *conn;
drmModeEncoder *enc;
drmModeCrtc *crtc;
drmModeRes *res;
char dev[64];
int fd, i, m, c, e;
snprintf(dev, sizeof(dev), DRM_DEV_NAME, DRM_DIR_NAME, devnr);
fd = open(dev, O_RDWR);
if (fd < 0) {
fprintf(stderr, "open %s: %s\n", dev, strerror(errno));
exit(1);
}
res = drmModeGetResources(fd);
if (res == NULL) {
fprintf(stderr, "drmModeGetResources() failed\n");
exit(1);
}
for (i = 0; i < res->count_connectors; i++) {
conn = drmModeGetConnector(fd, res->connectors[i]);
if (!conn)
continue;
fprintf(stdout, "id %d: %s-%d, %s\n",
conn->connector_id,
drm_connector_type_name(conn->connector_type),
conn->connector_type_id,
drm_connector_mode_name(conn->connection));
if (conn->count_encoders) {
fprintf(stdout, " %d encoders\n",
conn->count_encoders);
for (e = 0; e < conn->count_encoders; e++) {
enc = drmModeGetEncoder(fd, conn->encoders[e]);
if (!enc)
continue;
fprintf(stdout, " id %d: %s",
enc->encoder_id,
drm_encoder_type_name(enc->encoder_type));
if (enc->encoder_id == conn->encoder_id)
fprintf(stdout, ", active");
if (enc->crtc_id) {
crtc = drmModeGetCrtc(fd, enc->crtc_id);
if (crtc) {
fprintf(stdout, ", crtc %d (%dx%d)",
crtc->crtc_id,
crtc->width, crtc->height);
}
}
fprintf(stdout, "\n");
drmModeFreeEncoder(enc);
}
}
if (conn->count_modes) {
c = 1;
fprintf(stdout, " %d modes\n", conn->count_modes);
for (m = 0; m < conn->count_modes; m++) {
if (m+1 < conn->count_modes &&
conn->modes[m].hdisplay == conn->modes[m+1].hdisplay &&
conn->modes[m].vdisplay == conn->modes[m+1].vdisplay) {
c++;
} else {
fprintf(stdout, " %dx%d",
conn->modes[m].hdisplay,
conn->modes[m].vdisplay);
if (c > 1) {
fprintf(stdout, " (%dx)", c);
}
fprintf(stdout, "\n");
c = 1;
};
}
} else {
fprintf(stdout, " no modes\n");
}
drmModeFreeConnector(conn);
fprintf(stdout, "\n");
}
}
/* ------------------------------------------------------------------ */
static void usage(FILE *fp)
{
fprintf(fp,
"\n"
"usage: drminfo [ options ]\n"
"\n"
"options:\n"
" -h print this\n"
" -c <nr> pick card\n"
"\n");
}
int main(int argc, char **argv)
{
int card = 0;
int c;
for (;;) {
c = getopt(argc, argv, "hc:");
if (c == -1)
break;
switch (c) {
case 'c':
card = atoi(optarg);
break;
case 'h':
usage(stdout);
exit(0);
default:
usage(stderr);
exit(1);
}
}
drm_info(card);
return 0;
}
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