1e4ec915eea0adf2c9b6993a0608b88c037f9de6
[glsdk/libdrm.git] / tests / modetest / modetest.c
1 /*
2  * DRM based mode setting test program
3  * Copyright 2008 Tungsten Graphics
4  *   Jakob Bornecrantz <jakob@tungstengraphics.com>
5  * Copyright 2008 Intel Corporation
6  *   Jesse Barnes <jesse.barnes@intel.com>
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24  * IN THE SOFTWARE.
25  */
27 /*
28  * This fairly simple test program dumps output in a similar format to the
29  * "xrandr" tool everyone knows & loves.  It's necessarily slightly different
30  * since the kernel separates outputs into encoder and connector structures,
31  * each with their own unique ID.  The program also allows test testing of the
32  * memory management and mode setting APIs by allowing the user to specify a
33  * connector and mode to use for mode setting.  If all works as expected, a
34  * blue background should be painted on the monitor attached to the specified
35  * connector after the selected mode is set.
36  *
37  * TODO: use cairo to write the mode info on the selected output once
38  *       the mode has been programmed, along with possible test patterns.
39  */
40 #include "config.h"
42 #include <assert.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <stdint.h>
46 #include <unistd.h>
47 #include <string.h>
48 #include <errno.h>
49 #include <sys/poll.h>
50 #include <sys/time.h>
52 #include "xf86drm.h"
53 #include "xf86drmMode.h"
54 #include "libkms.h"
56 #ifdef HAVE_CAIRO
57 #include <math.h>
58 #include <cairo.h>
59 #endif
61 drmModeRes *resources;
62 int fd, modes;
64 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
66 struct type_name {
67         int type;
68         char *name;
69 };
71 #define type_name_fn(res) \
72 char * res##_str(int type) {                    \
73         int i;                                          \
74         for (i = 0; i < ARRAY_SIZE(res##_names); i++) { \
75                 if (res##_names[i].type == type)        \
76                         return res##_names[i].name;     \
77         }                                               \
78         return "(invalid)";                             \
79 }
81 struct type_name encoder_type_names[] = {
82         { DRM_MODE_ENCODER_NONE, "none" },
83         { DRM_MODE_ENCODER_DAC, "DAC" },
84         { DRM_MODE_ENCODER_TMDS, "TMDS" },
85         { DRM_MODE_ENCODER_LVDS, "LVDS" },
86         { DRM_MODE_ENCODER_TVDAC, "TVDAC" },
87 };
89 type_name_fn(encoder_type)
91 struct type_name connector_status_names[] = {
92         { DRM_MODE_CONNECTED, "connected" },
93         { DRM_MODE_DISCONNECTED, "disconnected" },
94         { DRM_MODE_UNKNOWNCONNECTION, "unknown" },
95 };
97 type_name_fn(connector_status)
99 struct type_name connector_type_names[] = {
100         { DRM_MODE_CONNECTOR_Unknown, "unknown" },
101         { DRM_MODE_CONNECTOR_VGA, "VGA" },
102         { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
103         { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
104         { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
105         { DRM_MODE_CONNECTOR_Composite, "composite" },
106         { DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
107         { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
108         { DRM_MODE_CONNECTOR_Component, "component" },
109         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
110         { DRM_MODE_CONNECTOR_DisplayPort, "displayport" },
111         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
112         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
113         { DRM_MODE_CONNECTOR_TV, "TV" },
114         { DRM_MODE_CONNECTOR_eDP, "embedded displayport" },
115 };
117 type_name_fn(connector_type)
119 void dump_encoders(void)
121         drmModeEncoder *encoder;
122         int i;
124         printf("Encoders:\n");
125         printf("id\tcrtc\ttype\tpossible crtcs\tpossible clones\t\n");
126         for (i = 0; i < resources->count_encoders; i++) {
127                 encoder = drmModeGetEncoder(fd, resources->encoders[i]);
129                 if (!encoder) {
130                         fprintf(stderr, "could not get encoder %i: %s\n",
131                                 resources->encoders[i], strerror(errno));
132                         continue;
133                 }
134                 printf("%d\t%d\t%s\t0x%08x\t0x%08x\n",
135                        encoder->encoder_id,
136                        encoder->crtc_id,
137                        encoder_type_str(encoder->encoder_type),
138                        encoder->possible_crtcs,
139                        encoder->possible_clones);
140                 drmModeFreeEncoder(encoder);
141         }
142         printf("\n");
145 void dump_mode(drmModeModeInfo *mode)
147         printf("  %s %d %d %d %d %d %d %d %d %d\n",
148                mode->name,
149                mode->vrefresh,
150                mode->hdisplay,
151                mode->hsync_start,
152                mode->hsync_end,
153                mode->htotal,
154                mode->vdisplay,
155                mode->vsync_start,
156                mode->vsync_end,
157                mode->vtotal);
160 static void
161 dump_props(drmModeConnector *connector)
163         drmModePropertyPtr props;
164         int i;
166         for (i = 0; i < connector->count_props; i++) {
167                 props = drmModeGetProperty(fd, connector->props[i]);
168                 printf("\t%s, flags %d\n", props->name, props->flags);
169                 drmModeFreeProperty(props);
170         }
173 void dump_connectors(void)
175         drmModeConnector *connector;
176         int i, j;
178         printf("Connectors:\n");
179         printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\tencoders\n");
180         for (i = 0; i < resources->count_connectors; i++) {
181                 connector = drmModeGetConnector(fd, resources->connectors[i]);
183                 if (!connector) {
184                         fprintf(stderr, "could not get connector %i: %s\n",
185                                 resources->connectors[i], strerror(errno));
186                         continue;
187                 }
189                 printf("%d\t%d\t%s\t%s\t%dx%d\t\t%d\t",
190                        connector->connector_id,
191                        connector->encoder_id,
192                        connector_status_str(connector->connection),
193                        connector_type_str(connector->connector_type),
194                        connector->mmWidth, connector->mmHeight,
195                        connector->count_modes);
197                 for (j = 0; j < connector->count_encoders; j++)
198                         printf("%s%d", j > 0 ? ", " : "", connector->encoders[j]);
199                 printf("\n");
201                 if (!connector->count_modes)
202                         continue;
204                 printf("  modes:\n");
205                 printf("  name refresh (Hz) hdisp hss hse htot vdisp "
206                        "vss vse vtot)\n");
207                 for (j = 0; j < connector->count_modes; j++)
208                         dump_mode(&connector->modes[j]);
210                 printf("  props:\n");
211                 dump_props(connector);
213                 drmModeFreeConnector(connector);
214         }
215         printf("\n");
218 void dump_crtcs(void)
220         drmModeCrtc *crtc;
221         int i;
223         printf("CRTCs:\n");
224         printf("id\tfb\tpos\tsize\n");
225         for (i = 0; i < resources->count_crtcs; i++) {
226                 crtc = drmModeGetCrtc(fd, resources->crtcs[i]);
228                 if (!crtc) {
229                         fprintf(stderr, "could not get crtc %i: %s\n",
230                                 resources->crtcs[i], strerror(errno));
231                         continue;
232                 }
233                 printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
234                        crtc->crtc_id,
235                        crtc->buffer_id,
236                        crtc->x, crtc->y,
237                        crtc->width, crtc->height);
238                 dump_mode(&crtc->mode);
240                 drmModeFreeCrtc(crtc);
241         }
242         printf("\n");
245 void dump_framebuffers(void)
247         drmModeFB *fb;
248         int i;
250         printf("Frame buffers:\n");
251         printf("id\tsize\tpitch\n");
252         for (i = 0; i < resources->count_fbs; i++) {
253                 fb = drmModeGetFB(fd, resources->fbs[i]);
255                 if (!fb) {
256                         fprintf(stderr, "could not get fb %i: %s\n",
257                                 resources->fbs[i], strerror(errno));
258                         continue;
259                 }
260                 printf("%u\t(%ux%u)\t%u\n",
261                        fb->fb_id,
262                        fb->width, fb->height,
263                        fb->pitch);
265                 drmModeFreeFB(fb);
266         }
267         printf("\n");
270 /*
271  * Mode setting with the kernel interfaces is a bit of a chore.
272  * First you have to find the connector in question and make sure the
273  * requested mode is available.
274  * Then you need to find the encoder attached to that connector so you
275  * can bind it with a free crtc.
276  */
277 struct connector {
278         uint32_t id;
279         char mode_str[64];
280         drmModeModeInfo *mode;
281         drmModeEncoder *encoder;
282         int crtc;
283         unsigned int fb_id[2], current_fb_id;
284         struct timeval start;
286         int swap_count;
287 };      
289 static void
290 connector_find_mode(struct connector *c)
292         drmModeConnector *connector;
293         int i, j;
295         /* First, find the connector & mode */
296         c->mode = NULL;
297         for (i = 0; i < resources->count_connectors; i++) {
298                 connector = drmModeGetConnector(fd, resources->connectors[i]);
300                 if (!connector) {
301                         fprintf(stderr, "could not get connector %i: %s\n",
302                                 resources->connectors[i], strerror(errno));
303                         drmModeFreeConnector(connector);
304                         continue;
305                 }
307                 if (!connector->count_modes) {
308                         drmModeFreeConnector(connector);
309                         continue;
310                 }
312                 if (connector->connector_id != c->id) {
313                         drmModeFreeConnector(connector);
314                         continue;
315                 }
317                 for (j = 0; j < connector->count_modes; j++) {
318                         c->mode = &connector->modes[j];
319                         if (!strcmp(c->mode->name, c->mode_str))
320                                 break;
321                 }
323                 /* Found it, break out */
324                 if (c->mode)
325                         break;
327                 drmModeFreeConnector(connector);
328         }
330         if (!c->mode) {
331                 fprintf(stderr, "failed to find mode \"%s\"\n", c->mode_str);
332                 return;
333         }
335         /* Now get the encoder */
336         for (i = 0; i < resources->count_encoders; i++) {
337                 c->encoder = drmModeGetEncoder(fd, resources->encoders[i]);
339                 if (!c->encoder) {
340                         fprintf(stderr, "could not get encoder %i: %s\n",
341                                 resources->encoders[i], strerror(errno));
342                         drmModeFreeEncoder(c->encoder);
343                         continue;
344                 }
346                 if (c->encoder->encoder_id  == connector->encoder_id)
347                         break;
349                 drmModeFreeEncoder(c->encoder);
350         }
352         if (c->crtc == -1)
353                 c->crtc = c->encoder->crtc_id;
356 static struct kms_bo *
357 allocate_buffer(struct kms_driver *kms,
358                 int width, int height, int *stride)
360         struct kms_bo *bo;
361         unsigned bo_attribs[] = {
362                 KMS_WIDTH,   0,
363                 KMS_HEIGHT,  0,
364                 KMS_BO_TYPE, KMS_BO_TYPE_SCANOUT_X8R8G8B8,
365                 KMS_TERMINATE_PROP_LIST
366         };
367         int ret;
369         bo_attribs[1] = width;
370         bo_attribs[3] = height;
372         ret = kms_bo_create(kms, bo_attribs, &bo);
373         if (ret) {
374                 fprintf(stderr, "failed to alloc buffer: %s\n",
375                         strerror(-ret));
376                 return NULL;
377         }
379         ret = kms_bo_get_prop(bo, KMS_PITCH, stride);
380         if (ret) {
381                 fprintf(stderr, "failed to retreive buffer stride: %s\n",
382                         strerror(-ret));
383                 kms_bo_destroy(&bo);
384                 return NULL;
385         }
387         return bo;
390 static void
391 make_pwetty(void *data, int width, int height, int stride)
393 #ifdef HAVE_CAIRO
394         cairo_surface_t *surface;
395         cairo_t *cr;
396         int x, y;
398         surface = cairo_image_surface_create_for_data(data,
399                                                       CAIRO_FORMAT_ARGB32,
400                                                       width, height,
401                                                       stride);
402         cr = cairo_create(surface);
403         cairo_surface_destroy(surface);
405         cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
406         for (x = 0; x < width; x += 250)
407                 for (y = 0; y < height; y += 250) {
408                         char buf[64];
410                         cairo_move_to(cr, x, y - 20);
411                         cairo_line_to(cr, x, y + 20);
412                         cairo_move_to(cr, x - 20, y);
413                         cairo_line_to(cr, x + 20, y);
414                         cairo_new_sub_path(cr);
415                         cairo_arc(cr, x, y, 10, 0, M_PI * 2);
416                         cairo_set_line_width(cr, 4);
417                         cairo_set_source_rgb(cr, 0, 0, 0);
418                         cairo_stroke_preserve(cr);
419                         cairo_set_source_rgb(cr, 1, 1, 1);
420                         cairo_set_line_width(cr, 2);
421                         cairo_stroke(cr);
423                         snprintf(buf, sizeof buf, "%d, %d", x, y);
424                         cairo_move_to(cr, x + 20, y + 20);
425                         cairo_text_path(cr, buf);
426                         cairo_set_source_rgb(cr, 0, 0, 0);
427                         cairo_stroke_preserve(cr);
428                         cairo_set_source_rgb(cr, 1, 1, 1);
429                         cairo_fill(cr);
430                 }
432         cairo_destroy(cr);
433 #endif
436 static int
437 create_test_buffer(struct kms_driver *kms,
438                    int width, int height, int *stride_out,
439                    struct kms_bo **bo_out)
441         struct kms_bo *bo;
442         int ret, i, j, stride;
443         void *virtual;
445         bo = allocate_buffer(kms, width, height, &stride);
446         if (!bo)
447                 return -1;
449         ret = kms_bo_map(bo, &virtual);
450         if (ret) {
451                 fprintf(stderr, "failed to map buffer: %s\n",
452                         strerror(-ret));
453                 kms_bo_destroy(&bo);
454                 return -1;
455         }
457         /* paint the buffer with colored tiles */
458         for (j = 0; j < height; j++) {
459                 uint32_t *fb_ptr = (uint32_t*)((char*)virtual + j * stride);
460                 for (i = 0; i < width; i++) {
461                         div_t d = div(i, width);
462                         fb_ptr[i] =
463                                 0x00130502 * (d.quot >> 6) +
464                                 0x000a1120 * (d.rem >> 6);
465                 }
466         }
468         make_pwetty(virtual, width, height, stride);
470         kms_bo_unmap(bo);
472         *bo_out = bo;
473         *stride_out = stride;
474         return 0;
477 static int
478 create_grey_buffer(struct kms_driver *kms,
479                    int width, int height, int *stride_out,
480                    struct kms_bo **bo_out)
482         struct kms_bo *bo;
483         int size, ret, stride;
484         void *virtual;
486         bo = allocate_buffer(kms, width, height, &stride);
487         if (!bo)
488                 return -1;
490         ret = kms_bo_map(bo, &virtual);
491         if (ret) {
492                 fprintf(stderr, "failed to map buffer: %s\n",
493                         strerror(-ret));
494                 kms_bo_destroy(&bo);
495                 return -1;
496         }
498         size = stride * height;
499         memset(virtual, 0x77, size);
500         kms_bo_unmap(bo);
502         *bo_out = bo;
503         *stride_out = stride;
505         return 0;
508 void
509 page_flip_handler(int fd, unsigned int frame,
510                   unsigned int sec, unsigned int usec, void *data)
512         struct connector *c;
513         unsigned int new_fb_id;
514         struct timeval end;
515         double t;
517         c = data;
518         if (c->current_fb_id == c->fb_id[0])
519                 new_fb_id = c->fb_id[1];
520         else
521                 new_fb_id = c->fb_id[0];
522                         
523         drmModePageFlip(fd, c->crtc, new_fb_id,
524                         DRM_MODE_PAGE_FLIP_EVENT, c);
525         c->current_fb_id = new_fb_id;
526         c->swap_count++;
527         if (c->swap_count == 60) {
528                 gettimeofday(&end, NULL);
529                 t = end.tv_sec + end.tv_usec * 1e-6 -
530                         (c->start.tv_sec + c->start.tv_usec * 1e-6);
531                 fprintf(stderr, "freq: %.02fHz\n", c->swap_count / t);
532                 c->swap_count = 0;
533                 c->start = end;
534         }
537 static void
538 set_mode(struct connector *c, int count, int page_flip)
540         struct kms_driver *kms;
541         struct kms_bo *bo, *other_bo;
542         unsigned int fb_id, other_fb_id;
543         int i, ret, width, height, x, stride;
544         unsigned handle;
545         drmEventContext evctx;
547         width = 0;
548         height = 0;
549         for (i = 0; i < count; i++) {
550                 connector_find_mode(&c[i]);
551                 if (c[i].mode == NULL)
552                         continue;
553                 width += c[i].mode->hdisplay;
554                 if (height < c[i].mode->vdisplay)
555                         height = c[i].mode->vdisplay;
556         }
558         ret = kms_create(fd, &kms);
559         if (ret) {
560                 fprintf(stderr, "failed to create kms driver: %s\n",
561                         strerror(-ret));
562                 return;
563         }
565         if (create_test_buffer(kms, width, height, &stride, &bo))
566                 return;
568         kms_bo_get_prop(bo, KMS_HANDLE, &handle);
569         ret = drmModeAddFB(fd, width, height, 24, 32, stride, handle, &fb_id);
570         if (ret) {
571                 fprintf(stderr, "failed to add fb (%ux%u): %s\n",
572                         width, height, strerror(errno));
573                 return;
574         }
576         x = 0;
577         for (i = 0; i < count; i++) {
578                 if (c[i].mode == NULL)
579                         continue;
581                 printf("setting mode %s on connector %d, crtc %d\n",
582                        c[i].mode_str, c[i].id, c[i].crtc);
584                 ret = drmModeSetCrtc(fd, c[i].crtc, fb_id, x, 0,
585                                      &c[i].id, 1, c[i].mode);
587                 /* XXX: Actually check if this is needed */
588                 drmModeDirtyFB(fd, fb_id, NULL, 0);
590                 x += c[i].mode->hdisplay;
592                 if (ret) {
593                         fprintf(stderr, "failed to set mode: %s\n", strerror(errno));
594                         return;
595                 }
596         }
598         if (!page_flip)
599                 return;
600         
601         if (create_grey_buffer(kms, width, height, &stride, &other_bo))
602                 return;
604         kms_bo_get_prop(other_bo, KMS_HANDLE, &handle);
605         ret = drmModeAddFB(fd, width, height, 32, 32, stride, handle,
606                            &other_fb_id);
607         if (ret) {
608                 fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
609                 return;
610         }
612         for (i = 0; i < count; i++) {
613                 if (c[i].mode == NULL)
614                         continue;
616                 ret = drmModePageFlip(fd, c[i].crtc, other_fb_id,
617                                       DRM_MODE_PAGE_FLIP_EVENT, &c[i]);
618                 if (ret) {
619                         fprintf(stderr, "failed to page flip: %s\n", strerror(errno));
620                         return;
621                 }
622                 gettimeofday(&c[i].start, NULL);
623                 c[i].swap_count = 0;
624                 c[i].fb_id[0] = fb_id;
625                 c[i].fb_id[1] = other_fb_id;
626                 c[i].current_fb_id = other_fb_id;
627         }
629         memset(&evctx, 0, sizeof evctx);
630         evctx.version = DRM_EVENT_CONTEXT_VERSION;
631         evctx.vblank_handler = NULL;
632         evctx.page_flip_handler = page_flip_handler;
633         
634         while (1) {
635 #if 0
636                 struct pollfd pfd[2];
638                 pfd[0].fd = 0;
639                 pfd[0].events = POLLIN;
640                 pfd[1].fd = fd;
641                 pfd[1].events = POLLIN;
643                 if (poll(pfd, 2, -1) < 0) {
644                         fprintf(stderr, "poll error\n");
645                         break;
646                 }
648                 if (pfd[0].revents)
649                         break;
650 #else
651                 struct timeval timeout = { .tv_sec = 3, .tv_usec = 0 };
652                 fd_set fds;
653                 int ret;
655                 FD_ZERO(&fds);
656                 FD_SET(0, &fds);
657                 FD_SET(fd, &fds);
658                 ret = select(fd + 1, &fds, NULL, NULL, &timeout);
660                 if (ret <= 0) {
661                         fprintf(stderr, "select timed out or error (ret %d)\n",
662                                 ret);
663                         continue;
664                 } else if (FD_ISSET(0, &fds)) {
665                         break;
666                 }
667 #endif
669                 drmHandleEvent(fd, &evctx);
670         }
672         kms_bo_destroy(&bo);
673         kms_bo_destroy(&other_bo);
674         kms_destroy(&kms);
677 extern char *optarg;
678 extern int optind, opterr, optopt;
679 static char optstr[] = "ecpmfs:v";
681 void usage(char *name)
683         fprintf(stderr, "usage: %s [-ecpmf]\n", name);
684         fprintf(stderr, "\t-e\tlist encoders\n");
685         fprintf(stderr, "\t-c\tlist connectors\n");
686         fprintf(stderr, "\t-p\tlist CRTCs (pipes)\n");
687         fprintf(stderr, "\t-m\tlist modes\n");
688         fprintf(stderr, "\t-f\tlist framebuffers\n");
689         fprintf(stderr, "\t-v\ttest vsynced page flipping\n");
690         fprintf(stderr, "\t-s <connector_id>:<mode>\tset a mode\n");
691         fprintf(stderr, "\t-s <connector_id>@<crtc_id>:<mode>\tset a mode\n");
692         fprintf(stderr, "\n\tDefault is to dump all info.\n");
693         exit(0);
696 #define dump_resource(res) if (res) dump_##res()
698 static int page_flipping_supported(int fd)
700         /*FIXME: generic ioctl needed? */
701         return 1;
702 #if 0
703         int ret, value;
704         struct drm_i915_getparam gp;
706         gp.param = I915_PARAM_HAS_PAGEFLIPPING;
707         gp.value = &value;
709         ret = drmCommandWriteRead(fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
710         if (ret) {
711                 fprintf(stderr, "drm_i915_getparam: %m\n");
712                 return 0;
713         }
715         return *gp.value;
716 #endif
719 int main(int argc, char **argv)
721         int c;
722         int encoders = 0, connectors = 0, crtcs = 0, framebuffers = 0;
723         int test_vsync = 0;
724         char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "omapdrm" };
725         char *modeset = NULL;
726         int i, count = 0;
727         struct connector con_args[2];
728         
729         opterr = 0;
730         while ((c = getopt(argc, argv, optstr)) != -1) {
731                 switch (c) {
732                 case 'e':
733                         encoders = 1;
734                         break;
735                 case 'c':
736                         connectors = 1;
737                         break;
738                 case 'p':
739                         crtcs = 1;
740                         break;
741                 case 'm':
742                         modes = 1;
743                         break;
744                 case 'f':
745                         framebuffers = 1;
746                         break;
747                 case 'v':
748                         test_vsync = 1;
749                         break;
750                 case 's':
751                         modeset = strdup(optarg);
752                         con_args[count].crtc = -1;
753                         if (sscanf(optarg, "%d:%64s",
754                                    &con_args[count].id,
755                                    con_args[count].mode_str) != 2 &&
756                             sscanf(optarg, "%d@%d:%64s",
757                                    &con_args[count].id,
758                                    &con_args[count].crtc,
759                                    con_args[count].mode_str) != 3)
760                                 usage(argv[0]);
761                         count++;                                      
762                         break;
763                 default:
764                         usage(argv[0]);
765                         break;
766                 }
767         }
769         if (argc == 1)
770                 encoders = connectors = crtcs = modes = framebuffers = 1;
772         for (i = 0; i < ARRAY_SIZE(modules); i++) {
773                 printf("trying to load module %s...", modules[i]);
774                 fd = drmOpen(modules[i], NULL);
775                 if (fd < 0) {
776                         printf("failed.\n");
777                 } else {
778                         printf("success.\n");
779                         break;
780                 }
781         }
783         if (test_vsync && !page_flipping_supported(fd)) {
784                 fprintf(stderr, "page flipping not supported by drm.\n");
785                 return -1;
786         }
788         if (i == ARRAY_SIZE(modules)) {
789                 fprintf(stderr, "failed to load any modules, aborting.\n");
790                 return -1;
791         }
793         resources = drmModeGetResources(fd);
794         if (!resources) {
795                 fprintf(stderr, "drmModeGetResources failed: %s\n",
796                         strerror(errno));
797                 drmClose(fd);
798                 return 1;
799         }
801         dump_resource(encoders);
802         dump_resource(connectors);
803         dump_resource(crtcs);
804         dump_resource(framebuffers);
806         if (count > 0) {
807                 set_mode(con_args, count, test_vsync);
808                 getchar();
809         }
811         drmModeFreeResources(resources);
813         return 0;