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      1 /*
      2  * Copyright 2008 Tungsten Graphics
      3  *   Jakob Bornecrantz <jakob (at) tungstengraphics.com>
      4  * Copyright 2008 Intel Corporation
      5  *   Jesse Barnes <jesse.barnes (at) 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 };
     83 
     84 const char *util_lookup_encoder_type_name(unsigned int type)
     85 {
     86 	return util_lookup_type_name(type, encoder_type_names,
     87 				     ARRAY_SIZE(encoder_type_names));
     88 }
     89 
     90 static const struct type_name connector_status_names[] = {
     91 	{ DRM_MODE_CONNECTED, "connected" },
     92 	{ DRM_MODE_DISCONNECTED, "disconnected" },
     93 	{ DRM_MODE_UNKNOWNCONNECTION, "unknown" },
     94 };
     95 
     96 const char *util_lookup_connector_status_name(unsigned int status)
     97 {
     98 	return util_lookup_type_name(status, connector_status_names,
     99 				     ARRAY_SIZE(connector_status_names));
    100 }
    101 
    102 static const struct type_name connector_type_names[] = {
    103 	{ DRM_MODE_CONNECTOR_Unknown, "unknown" },
    104 	{ DRM_MODE_CONNECTOR_VGA, "VGA" },
    105 	{ DRM_MODE_CONNECTOR_DVII, "DVI-I" },
    106 	{ DRM_MODE_CONNECTOR_DVID, "DVI-D" },
    107 	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
    108 	{ DRM_MODE_CONNECTOR_Composite, "composite" },
    109 	{ DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
    110 	{ DRM_MODE_CONNECTOR_LVDS, "LVDS" },
    111 	{ DRM_MODE_CONNECTOR_Component, "component" },
    112 	{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
    113 	{ DRM_MODE_CONNECTOR_DisplayPort, "DP" },
    114 	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
    115 	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
    116 	{ DRM_MODE_CONNECTOR_TV, "TV" },
    117 	{ DRM_MODE_CONNECTOR_eDP, "eDP" },
    118 	{ DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
    119 	{ DRM_MODE_CONNECTOR_DSI, "DSI" },
    120 };
    121 
    122 const char *util_lookup_connector_type_name(unsigned int type)
    123 {
    124 	return util_lookup_type_name(type, connector_type_names,
    125 				     ARRAY_SIZE(connector_type_names));
    126 }
    127 
    128 static const char * const modules[] = {
    129 	"i915",
    130 	"radeon",
    131 	"nouveau",
    132 	"vmwgfx",
    133 	"omapdrm",
    134 	"exynos",
    135 	"tilcdc",
    136 	"msm",
    137 	"sti",
    138 	"tegra",
    139 	"imx-drm",
    140 	"rockchip",
    141 	"atmel-hlcdc",
    142 };
    143 
    144 int util_open(const char *device, const char *module)
    145 {
    146 	int fd;
    147 
    148 	if (module) {
    149 		fd = drmOpen(module, device);
    150 		if (fd < 0) {
    151 			fprintf(stderr, "failed to open device '%s': %s\n",
    152 				module, strerror(errno));
    153 			return -errno;
    154 		}
    155 	} else {
    156 		unsigned int i;
    157 
    158 		for (i = 0; i < ARRAY_SIZE(modules); i++) {
    159 			printf("trying to open device '%s'...", modules[i]);
    160 
    161 			fd = drmOpen(modules[i], device);
    162 			if (fd < 0) {
    163 				printf("failed\n");
    164 			} else {
    165 				printf("done\n");
    166 				break;
    167 			}
    168 		}
    169 
    170 		if (fd < 0) {
    171 			fprintf(stderr, "no device found\n");
    172 			return -ENODEV;
    173 		}
    174 	}
    175 
    176 	return fd;
    177 }
    178