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 #include <errno.h> 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <fcntl.h> 46 #include <unistd.h> 47 48 #include "xf86drm.h" 49 #include "xf86drmMode.h" 50 51 #include "common.h" 52 53 struct type_name { 54 unsigned int type; 55 const char *name; 56 }; 57 58 static const char *util_lookup_type_name(unsigned int type, 59 const struct type_name *table, 60 unsigned int count) 61 { 62 unsigned int i; 63 64 for (i = 0; i < count; i++) 65 if (table[i].type == type) 66 return table[i].name; 67 68 return NULL; 69 } 70 71 static const struct type_name encoder_type_names[] = { 72 { DRM_MODE_ENCODER_NONE, "none" }, 73 { DRM_MODE_ENCODER_DAC, "DAC" }, 74 { DRM_MODE_ENCODER_TMDS, "TMDS" }, 75 { DRM_MODE_ENCODER_LVDS, "LVDS" }, 76 { DRM_MODE_ENCODER_TVDAC, "TVDAC" }, 77 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 78 { DRM_MODE_ENCODER_DSI, "DSI" }, 79 { DRM_MODE_ENCODER_DPMST, "DPMST" }, 80 { DRM_MODE_ENCODER_DPI, "DPI" }, 81 }; 82 83 const char *util_lookup_encoder_type_name(unsigned int type) 84 { 85 return util_lookup_type_name(type, encoder_type_names, 86 ARRAY_SIZE(encoder_type_names)); 87 } 88 89 static const struct type_name connector_status_names[] = { 90 { DRM_MODE_CONNECTED, "connected" }, 91 { DRM_MODE_DISCONNECTED, "disconnected" }, 92 { DRM_MODE_UNKNOWNCONNECTION, "unknown" }, 93 }; 94 95 const char *util_lookup_connector_status_name(unsigned int status) 96 { 97 return util_lookup_type_name(status, connector_status_names, 98 ARRAY_SIZE(connector_status_names)); 99 } 100 101 int util_open(const char *device, const char *module) 102 { 103 int fd = -1; 104 drmVersionPtr version; 105 106 if (module || device) { 107 fd = drmOpen(module, device); 108 if (fd < 0) { 109 fprintf(stderr, "failed to open device '%s' with busid '%s': %s\n", 110 module, device, strerror(errno)); 111 return -errno; 112 } 113 } else { 114 unsigned int i; 115 drmDevicePtr devices[64]; 116 int num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices)); 117 if (num_devices < 0) { 118 fprintf(stderr, "drmGetDevices2() failed with %s\n", strerror(num_devices)); 119 return num_devices; 120 } 121 122 for (i = 0; i < num_devices; i++) { 123 drmDevicePtr device = devices[i]; 124 // Select only primary nodes 125 if ((device->available_nodes & 1 << DRM_NODE_PRIMARY) == 0) 126 continue; 127 128 printf("trying to open device '%s'... ", device->nodes[DRM_NODE_PRIMARY]); 129 fd = open(device->nodes[DRM_NODE_PRIMARY], O_RDWR | O_CLOEXEC); 130 131 if (fd < 0) { 132 printf("failed\n"); 133 } else if (!drmIsKMS(fd)) { 134 printf("is not a KMS device\n"); 135 close(fd); 136 fd = -1; 137 } else { 138 printf("done\n"); 139 break; 140 } 141 } 142 143 if (fd < 0) { 144 fprintf(stderr, "no device found\n"); 145 return -ENODEV; 146 } 147 } 148 149 version = drmGetVersion(fd); 150 printf("opened device `%s` on driver `%s` (version %d.%d.%d at %s)\n", 151 version->desc, 152 version->name, 153 version->version_major, 154 version->version_minor, 155 version->version_patchlevel, 156 version->date); 157 drmFreeVersion(version); 158 159 return fd; 160 } 161