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      1 /*
      2  * Copyright  2012 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *    Paulo Zanoni <paulo.r.zanoni (at) intel.com>
     25  *
     26  */
     27 
     28 #include <assert.h>
     29 #include <errno.h>
     30 #include <inttypes.h>
     31 #include <stdlib.h>
     32 #include <stdio.h>
     33 #include <string.h>
     34 
     35 #include "xf86drm.h"
     36 #include "xf86drmMode.h"
     37 
     38 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
     39 static inline int64_t U642I64(uint64_t val)
     40 {
     41 	return (int64_t)*((int64_t *)&val);
     42 }
     43 
     44 int fd;
     45 drmModeResPtr res = NULL;
     46 
     47 const char *connector_type_str(uint32_t type)
     48 {
     49 	switch (type) {
     50 	case DRM_MODE_CONNECTOR_Unknown:
     51 		return "Unknown";
     52 	case DRM_MODE_CONNECTOR_VGA:
     53 		return "VGA";
     54 	case DRM_MODE_CONNECTOR_DVII:
     55 		return "DVI-I";
     56 	case DRM_MODE_CONNECTOR_DVID:
     57 		return "DVI-D";
     58 	case DRM_MODE_CONNECTOR_DVIA:
     59 		return "DVI-A";
     60 	case DRM_MODE_CONNECTOR_Composite:
     61 		return "Composite";
     62 	case DRM_MODE_CONNECTOR_SVIDEO:
     63 		return "SVIDEO";
     64 	case DRM_MODE_CONNECTOR_LVDS:
     65 		return "LVDS";
     66 	case DRM_MODE_CONNECTOR_Component:
     67 		return "Component";
     68 	case DRM_MODE_CONNECTOR_9PinDIN:
     69 		return "9PinDin";
     70 	case DRM_MODE_CONNECTOR_DisplayPort:
     71 		return "DisplayPort";
     72 	case DRM_MODE_CONNECTOR_HDMIA:
     73 		return "HDMI-A";
     74 	case DRM_MODE_CONNECTOR_HDMIB:
     75 		return "HDMI-B";
     76 	case DRM_MODE_CONNECTOR_TV:
     77 		return "TV";
     78 	case DRM_MODE_CONNECTOR_eDP:
     79 		return "eDP";
     80 	default:
     81 		return "Invalid";
     82 	}
     83 }
     84 
     85 /* dump_blob and dump_prop shamelessly copied from ../modetest/modetest.c */
     86 static void
     87 dump_blob(uint32_t blob_id)
     88 {
     89 	uint32_t i;
     90 	unsigned char *blob_data;
     91 	drmModePropertyBlobPtr blob;
     92 
     93 	blob = drmModeGetPropertyBlob(fd, blob_id);
     94 	if (!blob) {
     95 		printf("\n");
     96 		return;
     97 	}
     98 
     99 	blob_data = blob->data;
    100 
    101 	for (i = 0; i < blob->length; i++) {
    102 		if (i % 16 == 0)
    103 			printf("\n\t\t\t");
    104 		printf("%.2hhx", blob_data[i]);
    105 	}
    106 	printf("\n");
    107 
    108 	drmModeFreePropertyBlob(blob);
    109 }
    110 
    111 static void
    112 dump_prop(uint32_t prop_id, uint64_t value)
    113 {
    114 	int i;
    115 	drmModePropertyPtr prop;
    116 
    117 	prop = drmModeGetProperty(fd, prop_id);
    118 
    119 	printf("\t%d", prop_id);
    120 	if (!prop) {
    121 		printf("\n");
    122 		return;
    123 	}
    124 
    125 	printf(" %s:\n", prop->name);
    126 
    127 	printf("\t\tflags:");
    128 	if (prop->flags & DRM_MODE_PROP_PENDING)
    129 		printf(" pending");
    130 	if (prop->flags & DRM_MODE_PROP_IMMUTABLE)
    131 		printf(" immutable");
    132 	if (drm_property_type_is(prop, DRM_MODE_PROP_SIGNED_RANGE))
    133 		printf(" signed range");
    134 	if (drm_property_type_is(prop, DRM_MODE_PROP_RANGE))
    135 		printf(" range");
    136 	if (drm_property_type_is(prop, DRM_MODE_PROP_ENUM))
    137 		printf(" enum");
    138 	if (drm_property_type_is(prop, DRM_MODE_PROP_BITMASK))
    139 		printf(" bitmask");
    140 	if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB))
    141 		printf(" blob");
    142 	if (drm_property_type_is(prop, DRM_MODE_PROP_OBJECT))
    143 		printf(" object");
    144 	printf("\n");
    145 
    146 
    147 	if (drm_property_type_is(prop, DRM_MODE_PROP_SIGNED_RANGE)) {
    148 		printf("\t\tvalues:");
    149 		for (i = 0; i < prop->count_values; i++)
    150 			printf(" %"PRId64, U642I64(prop->values[i]));
    151 		printf("\n");
    152 	}
    153 
    154 	if (drm_property_type_is(prop, DRM_MODE_PROP_RANGE)) {
    155 		printf("\t\tvalues:");
    156 		for (i = 0; i < prop->count_values; i++)
    157 			printf(" %"PRIu64, prop->values[i]);
    158 		printf("\n");
    159 	}
    160 
    161 	if (drm_property_type_is(prop, DRM_MODE_PROP_ENUM)) {
    162 		printf("\t\tenums:");
    163 		for (i = 0; i < prop->count_enums; i++)
    164 			printf(" %s=%llu", prop->enums[i].name,
    165 			       prop->enums[i].value);
    166 		printf("\n");
    167 	} else if (drm_property_type_is(prop, DRM_MODE_PROP_BITMASK)) {
    168 		printf("\t\tvalues:");
    169 		for (i = 0; i < prop->count_enums; i++)
    170 			printf(" %s=0x%llx", prop->enums[i].name,
    171 			       (1LL << prop->enums[i].value));
    172 		printf("\n");
    173 	} else {
    174 		assert(prop->count_enums == 0);
    175 	}
    176 
    177 	if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB)) {
    178 		printf("\t\tblobs:\n");
    179 		for (i = 0; i < prop->count_blobs; i++)
    180 			dump_blob(prop->blob_ids[i]);
    181 		printf("\n");
    182 	} else {
    183 		assert(prop->count_blobs == 0);
    184 	}
    185 
    186 	printf("\t\tvalue:");
    187 	if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB))
    188 		dump_blob(value);
    189 	else
    190 		printf(" %"PRIu64"\n", value);
    191 
    192 	drmModeFreeProperty(prop);
    193 }
    194 
    195 static void listObjectProperties(uint32_t id, uint32_t type)
    196 {
    197 	unsigned int i;
    198 	drmModeObjectPropertiesPtr props;
    199 
    200 	props = drmModeObjectGetProperties(fd, id, type);
    201 
    202 	if (!props) {
    203 		printf("\tNo properties: %s.\n", strerror(errno));
    204 		return;
    205 	}
    206 
    207 	for (i = 0; i < props->count_props; i++)
    208 		dump_prop(props->props[i], props->prop_values[i]);
    209 
    210 	drmModeFreeObjectProperties(props);
    211 }
    212 
    213 static void listConnectorProperties(void)
    214 {
    215 	int i;
    216 	drmModeConnectorPtr c;
    217 
    218 	for (i = 0; i < res->count_connectors; i++) {
    219 		c = drmModeGetConnector(fd, res->connectors[i]);
    220 
    221 		if (!c) {
    222 			fprintf(stderr, "Could not get connector %u: %s\n",
    223 				res->connectors[i], strerror(errno));
    224 			continue;
    225 		}
    226 
    227 		printf("Connector %u (%s-%u)\n", c->connector_id,
    228 		       connector_type_str(c->connector_type),
    229 		       c->connector_type_id);
    230 
    231 		listObjectProperties(c->connector_id,
    232 				     DRM_MODE_OBJECT_CONNECTOR);
    233 
    234 		drmModeFreeConnector(c);
    235 	}
    236 }
    237 
    238 static void listCrtcProperties(void)
    239 {
    240 	int i;
    241 	drmModeCrtcPtr c;
    242 
    243 	for (i = 0; i < res->count_crtcs; i++) {
    244 		c = drmModeGetCrtc(fd, res->crtcs[i]);
    245 
    246 		if (!c) {
    247 			fprintf(stderr, "Could not get crtc %u: %s\n",
    248 				res->crtcs[i], strerror(errno));
    249 			continue;
    250 		}
    251 
    252 		printf("CRTC %u\n", c->crtc_id);
    253 
    254 		listObjectProperties(c->crtc_id, DRM_MODE_OBJECT_CRTC);
    255 
    256 		drmModeFreeCrtc(c);
    257 	}
    258 }
    259 
    260 static void listAllProperties(void)
    261 {
    262 	listConnectorProperties();
    263 	listCrtcProperties();
    264 }
    265 
    266 static int setProperty(char *argv[])
    267 {
    268 	uint32_t obj_id, obj_type, prop_id;
    269 	uint64_t value;
    270 
    271 	obj_id = atoi(argv[1]);
    272 
    273 	if (!strcmp(argv[2], "connector")) {
    274 		obj_type = DRM_MODE_OBJECT_CONNECTOR;
    275 	} else if (!strcmp(argv[2], "crtc")) {
    276 		obj_type = DRM_MODE_OBJECT_CRTC;
    277 	} else {
    278 		fprintf(stderr, "Invalid object type.\n");
    279 		return 1;
    280 	}
    281 
    282 	prop_id = atoi(argv[3]);
    283 	value = atoll(argv[4]);
    284 
    285 	return drmModeObjectSetProperty(fd, obj_id, obj_type, prop_id, value);
    286 }
    287 
    288 static void printUsage(void)
    289 {
    290 	printf("Usage:\n"
    291 "  proptest\n"
    292 "  proptest [obj id] [obj type] [prop id] [value]\n"
    293 "\n"
    294 "The first form just prints all the existing properties. The second one is\n"
    295 "used to set the value of a specified property. The object type can be one of\n"
    296 "the following strings:\n"
    297 "  connector crtc\n"
    298 "\n"
    299 "Example:\n"
    300 "  proptest 7 connector 2 1\n"
    301 "will set property 2 of connector 7 to 1\n");
    302 }
    303 
    304 int main(int argc, char *argv[])
    305 {
    306 	char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "msm" };
    307 	unsigned int i, ret = 0;
    308 
    309 	for (i = 0; i < ARRAY_SIZE(modules); i++){
    310 		fd = drmOpen(modules[i], NULL);
    311 		if (fd >= 0) {
    312 			printf("Module %s loaded.\n", modules[i]);
    313 			break;
    314 		}
    315 	}
    316 
    317 	if (i == ARRAY_SIZE(modules)) {
    318 		fprintf(stderr, "Failed to load drm modules.\n");
    319 		return 1;
    320 	}
    321 
    322 	res = drmModeGetResources(fd);
    323 	if (!res) {
    324 		fprintf(stderr, "Failed to get resources: %s\n",
    325 			strerror(errno));
    326 		ret = 1;
    327 		goto done;
    328 	}
    329 
    330 	if (argc < 2) {
    331 		listAllProperties();
    332 	} else if (argc == 5) {
    333 		ret = setProperty(argv);
    334 	} else {
    335 		printUsage();
    336 		ret = 1;
    337 	}
    338 
    339 	drmModeFreeResources(res);
    340 done:
    341 	drmClose(fd);
    342 	return ret;
    343 }
    344