tests/util/kms.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics
   3  *   Jakob Bornecrantz <jakob@tungstengraphics.com>
   4  * Copyright 2008 Intel Corporation
   5  *   Jesse Barnes <jesse.barnes@intel.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25
  26 /*
  27  * This fairly simple test program dumps output in a similar format to the
  28  * "xrandr" tool everyone knows & loves.  It's necessarily slightly different
  29  * since the kernel separates outputs into encoder and connector structures,
  30  * each with their own unique ID.  The program also allows test testing of the
  31  * memory management and mode setting APIs by allowing the user to specify a
  32  * connector and mode to use for mode setting.  If all works as expected, a
  33  * blue background should be painted on the monitor attached to the specified
  34  * connector after the selected mode is set.
  35  *
  36  * TODO: use cairo to write the mode info on the selected output once
  37  *       the mode has been programmed, along with possible test patterns.
  38  */
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include "config.h"
  42 #endif
  43
  44 #include <errno.h>
  45 #include <stdint.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49
  50 #include "xf86drm.h"
  51 #include "xf86drmMode.h"
  52
  53 #include "common.h"
  54
  55 struct type_name {
  56         unsigned int type;
  57         const char *name;
  58 };
  59
  60 static const char *util_lookup_type_name(unsigned int type,
  61                                          const struct type_name *table,
  62                                          unsigned int count)
  63 {
  64         unsigned int i;
  65
  66         for (i = 0; i < count; i++)
  67                 if (table[i].type == type)
  68                         return table[i].name;
  69
  70         return NULL;
  71 }
  72
  73 static const struct type_name encoder_type_names[] = {
  74         { DRM_MODE_ENCODER_NONE, "none" },
  75         { DRM_MODE_ENCODER_DAC, "DAC" },
  76         { DRM_MODE_ENCODER_TMDS, "TMDS" },
  77         { DRM_MODE_ENCODER_LVDS, "LVDS" },
  78         { DRM_MODE_ENCODER_TVDAC, "TVDAC" },
  79         { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
  80         { DRM_MODE_ENCODER_DSI, "DSI" },
  81         { DRM_MODE_ENCODER_DPMST, "DPMST" },
  82         { DRM_MODE_ENCODER_DPI, "DPI" },
  83 };
  84
  85 const char *util_lookup_encoder_type_name(unsigned int type)
  86 {
  87         return util_lookup_type_name(type, encoder_type_names,
  88                                      ARRAY_SIZE(encoder_type_names));
  89 }
  90
  91 static const struct type_name connector_status_names[] = {
  92         { DRM_MODE_CONNECTED, "connected" },
  93         { DRM_MODE_DISCONNECTED, "disconnected" },
  94         { DRM_MODE_UNKNOWNCONNECTION, "unknown" },
  95 };
  96
  97 const char *util_lookup_connector_status_name(unsigned int status)
  98 {
  99         return util_lookup_type_name(status, connector_status_names,
 100                                      ARRAY_SIZE(connector_status_names));
 101 }
 102
 103 static const struct type_name connector_type_names[] = {
 104         { DRM_MODE_CONNECTOR_Unknown, "unknown" },
 105         { DRM_MODE_CONNECTOR_VGA, "VGA" },
 106         { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
 107         { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
 108         { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
 109         { DRM_MODE_CONNECTOR_Composite, "composite" },
 110         { DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
 111         { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
 112         { DRM_MODE_CONNECTOR_Component, "component" },
 113         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
 114         { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
 115         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
 116         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
 117         { DRM_MODE_CONNECTOR_TV, "TV" },
 118         { DRM_MODE_CONNECTOR_eDP, "eDP" },
 119         { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
 120         { DRM_MODE_CONNECTOR_DSI, "DSI" },
 121         { DRM_MODE_CONNECTOR_DPI, "DPI" },
 122 };
 123
 124 const char *util_lookup_connector_type_name(unsigned int type)
 125 {
 126         return util_lookup_type_name(type, connector_type_names,
 127                                      ARRAY_SIZE(connector_type_names));
 128 }
 129
 130 static const char * const modules[] = {
 131         "i915",
 132         "amdgpu",
 133         "radeon",
 134         "nouveau",
 135         "vmwgfx",
 136         "omapdrm",
 137         "exynos",
 138         "tilcdc",
 139         "msm",
 140         "sti",
 141         "tegra",
 142         "imx-drm",
 143         "rockchip",
 144         "atmel-hlcdc",
 145         "fsl-dcu-drm",
 146         "vc4",
 147         "virtio_gpu",
 148         "mediatek",
 149         "meson",
 150         "pl111",
 151 };
 152
 153 int util_open(const char *device, const char *module)
 154 {
 155         int fd;
 156
 157         if (module) {
 158                 fd = drmOpen(module, device);
 159                 if (fd < 0) {
 160                         fprintf(stderr, "failed to open device '%s': %s\n",
 161                                 module, strerror(errno));
 162                         return -errno;
 163                 }
 164         } else {
 165                 unsigned int i;
 166
 167                 for (i = 0; i < ARRAY_SIZE(modules); i++) {
 168                         printf("trying to open device '%s'...", modules[i]);
 169
 170                         fd = drmOpen(modules[i], device);
 171                         if (fd < 0) {
 172                                 printf("failed\n");
 173                         } else {
 174                                 printf("done\n");
 175                                 break;
 176                         }
 177                 }
 178
 179                 if (fd < 0) {
 180                         fprintf(stderr, "no device found\n");
 181                         return -ENODEV;
 182                 }
 183         }
 184
 185         return fd;
 186 }