src/drm-cursor.c - chromiumos/platform/drm-tests - Git at Google

 /*
  * Copyright 2010 Intel Corporation
  *   Jesse Barnes <jesse.barnes@intel.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  * IN THE SOFTWARE.
  */

 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <string.h>
 #include <xf86drm.h>
 #include <xf86drmMode.h>

 static int dump_info = 1;

 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

 struct type_name {
 	int type;
 	char *name;
 };

 #define type_name_fn(res) \
 char * res##_str(int type) {			\
 	int i;						\
 	for (i = 0; i < ARRAY_SIZE(res##_names); i++) { \
 		if (res##_names[i].type == type)	\
 			return res##_names[i].name;	\
 	}						\
 	return "(invalid)";				\
 }

 struct type_name encoder_type_names[] = {
 	{ DRM_MODE_ENCODER_NONE, "none" },
 	{ DRM_MODE_ENCODER_DAC, "DAC" },
 	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
 	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
 	{ DRM_MODE_ENCODER_TVDAC, "TVDAC" },
 };

 type_name_fn(encoder_type)

 struct type_name connector_status_names[] = {
 	{ DRM_MODE_CONNECTED, "connected" },
 	{ DRM_MODE_DISCONNECTED, "disconnected" },
 	{ DRM_MODE_UNKNOWNCONNECTION, "unknown" },
 };

 type_name_fn(connector_status)

 struct type_name connector_type_names[] = {
 	{ DRM_MODE_CONNECTOR_Unknown, "unknown" },
 	{ DRM_MODE_CONNECTOR_VGA, "VGA" },
 	{ DRM_MODE_CONNECTOR_DVII, "DVI-I" },
 	{ DRM_MODE_CONNECTOR_DVID, "DVI-D" },
 	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
 	{ DRM_MODE_CONNECTOR_Composite, "composite" },
 	{ DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
 	{ DRM_MODE_CONNECTOR_LVDS, "LVDS" },
 	{ DRM_MODE_CONNECTOR_Component, "component" },
 	{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
 	{ DRM_MODE_CONNECTOR_DisplayPort, "displayport" },
 	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
 	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
 	{ DRM_MODE_CONNECTOR_TV, "TV" },
 	{ DRM_MODE_CONNECTOR_eDP, "embedded displayport" },
 };

 type_name_fn(connector_type)

 /*
  * Mode setting with the kernel interfaces is a bit of a chore.
  * First you have to find the connector in question and make sure the
  * requested mode is available.
  * Then you need to find the encoder attached to that connector so you
  * can bind it with a free crtc.
  */
 struct connector {
 	uint32_t id;
 	int mode_valid;
 	drmModeModeInfo mode;
 	drmModeEncoder *encoder;
 	drmModeConnector *connector;
 	int crtc;
 };

 static void dump_mode(drmModeModeInfo *mode)
 {
 	printf("  %s %d %d %d %d %d %d %d %d %d 0x%x 0x%x %d\n",
 	       mode->name,
 	       mode->vrefresh,
 	       mode->hdisplay,
 	       mode->hsync_start,
 	       mode->hsync_end,
 	       mode->htotal,
 	       mode->vdisplay,
 	       mode->vsync_start,
 	       mode->vsync_end,
 	       mode->vtotal,
 	       mode->flags,
 	       mode->type,
 	       mode->clock);
 }
 static void dump_connectors(int fd, drmModeRes *resources)
 {
 	int i, j;

 	printf("Connectors:\n");
 	printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\n");
 	for (i = 0; i < resources->count_connectors; i++) {
 		drmModeConnector *connector;

 		connector = drmModeGetConnector(fd, resources->connectors[i]);
 		if (!connector) {
 			fprintf(stderr, "could not get connector %i: %s\n",
 				resources->connectors[i], strerror(errno));
 			continue;
 		}

 		printf("%d\t%d\t%s\t%s\t%dx%d\t\t%d\n",
 		       connector->connector_id,
 		       connector->encoder_id,
 		       connector_status_str(connector->connection),
 		       connector_type_str(connector->connector_type),
 		       connector->mmWidth, connector->mmHeight,
 		       connector->count_modes);

 		if (!connector->count_modes)
 			continue;

 		printf("  modes:\n");
 		printf("  name refresh (Hz) hdisp hss hse htot vdisp "
 		       "vss vse vtot flags type clock\n");
 		for (j = 0; j < connector->count_modes; j++)
 			dump_mode(&connector->modes[j]);

 		drmModeFreeConnector(connector);
 	}
 	printf("\n");
 }

 static void dump_crtcs(int fd, drmModeRes *resources)
 {
 	int i;

 	printf("CRTCs:\n");
 	printf("id\tfb\tpos\tsize\n");
 	for (i = 0; i < resources->count_crtcs; i++) {
 		drmModeCrtc *crtc;

 		crtc = drmModeGetCrtc(fd, resources->crtcs[i]);
 		if (!crtc) {
 			fprintf(stderr, "could not get crtc %i: %s\n",
 				resources->crtcs[i], strerror(errno));
 			continue;
 		}
 		printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
 		       crtc->crtc_id,
 		       crtc->buffer_id,
 		       crtc->x, crtc->y,
 		       crtc->width, crtc->height);
 		dump_mode(&crtc->mode);

 		drmModeFreeCrtc(crtc);
 	}
 	printf("\n");
 }

 static void connector_find_preferred_mode(int fd, drmModeRes *resources,
 					  struct connector *c)
 {
 	drmModeConnector *connector;
 	drmModeEncoder *encoder = NULL;
 	int i;

 	/* First, find the connector & mode */
 	c->mode_valid = 0;
 	connector = drmModeGetConnector(fd, c->id);
 	if (!connector) {
 		fprintf(stderr, "could not get connector %d: %s\n",
 			c->id, strerror(errno));
 		drmModeFreeConnector(connector);
 		return;
 	}

 	if (connector->connection != DRM_MODE_CONNECTED) {
 		drmModeFreeConnector(connector);
 		return;
 	}

 	if (!connector->count_modes) {
 		fprintf(stderr, "connector %d has no modes\n", c->id);
 		drmModeFreeConnector(connector);
 		return;
 	}

 	if (connector->connector_id != c->id) {
 		fprintf(stderr, "connector id doesn't match (%d != %d)\n",
 			connector->connector_id, c->id);
 		drmModeFreeConnector(connector);
 		return;
 	}

 	for (i = 0; i < connector->count_modes; i++) {
 		c->mode = connector->modes[i];
 		if (c->mode.type & DRM_MODE_TYPE_PREFERRED) {
 			c->mode_valid = 1;
 			break;
 		}
 	}

 	if (!c->mode_valid) {
 		if (connector->count_modes > 0) {
 			/* use the first mode as test mode */
 			c->mode = connector->modes[0];
 			c->mode_valid = 1;
 		} else {
 			return;
 		}
 	}

 	/* Now get the encoder */
 	for (i = 0; i < connector->count_encoders; i++) {
 		encoder = drmModeGetEncoder(fd, connector->encoders[i]);

 		if (!encoder) {
 			fprintf(stderr, "could not get encoder %i: %s\n",
 				resources->encoders[i], strerror(errno));
 			drmModeFreeEncoder(encoder);
 			continue;
 		}

 		break;
 	}

 	if (i == resources->count_encoders) {
 		fprintf(stderr, "failed to find encoder\n");
 		c->mode_valid = 0;
 		return;
 	}

 	c->encoder = encoder;

 	/* Find first CRTC not in use */
 	for (i = 0; i < resources->count_crtcs; i++)
 		if (resources->crtcs[i] &&
 		    (c->encoder->possible_crtcs & (1<<i)))
 			break;

 	if (i == resources->count_crtcs) {
 		fprintf(stderr, "failed to find crtc\n");
 		c->mode_valid = 0;
 		return;
 	}

 	c->crtc = resources->crtcs[i];

 	c->connector = connector;
 }

 static int test_cursor(int fd, struct connector *c)
 {
 	int i;

 	for(i = 0; i < 10; i++) {
 		drmModeMoveCursor(fd, c->crtc, i*100, 0);
 		sleep(1);
 	}
 }

 static int update_display(int fd)
 {
 	drmModeRes *resources;
 	struct connector connector;
 	int c;

 	resources = drmModeGetResources(fd);
 	if (!resources) {
 		fprintf(stderr, "drmModeGetResources failed: %s\n",
 			strerror(errno));
 		return 0;
 	}

 	if (dump_info) {
 		dump_connectors(fd, resources);
 		dump_crtcs(fd, resources);
 	}

 	/* Find first connected displays */
 	for (c = 0; c < resources->count_connectors; c++) {
 		connector.id = resources->connectors[c];
 		connector_find_preferred_mode(fd, resources, &connector);
 		if (connector.mode_valid)
 			break;
 	}

 	if (!connector.mode_valid) {
 		fprintf(stderr, "failed: no valid mode\n");
 		return 0;
 	}

 	test_cursor(fd, &connector);

 	drmModeFreeResources(resources);
 	return 1;
 }

 int main(int argc, char **argv)
 {
 	int fd = -1;

 	if ((fd = open("/dev/dri/card0", O_RDWR)) < 0) {
 		drmError(fd, argv[0]);
 		return 1;
 	}

 	if (update_display(fd))
 		printf("Success!\n");

 	return 0;
 }
	/*
	* Copyright 2010 Intel Corporation
	* Jesse Barnes <jesse.barnes@intel.com>
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	* IN THE SOFTWARE.
	*/

	#include <errno.h>
	#include <fcntl.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <sys/stat.h>
	#include <sys/types.h>
	#include <string.h>
	#include <xf86drm.h>
	#include <xf86drmMode.h>

	static int dump_info = 1;

	#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

	struct type_name {
	int type;
	char *name;
	};

	#define type_name_fn(res) \
	char * res##_str(int type) { \
	int i; \
	for (i = 0; i < ARRAY_SIZE(res##_names); i++) { \
	if (res##_names[i].type == type) \
	return res##_names[i].name; \
	} \
	return "(invalid)"; \
	}

	struct type_name encoder_type_names[] = {
	{ DRM_MODE_ENCODER_NONE, "none" },
	{ DRM_MODE_ENCODER_DAC, "DAC" },
	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
	{ DRM_MODE_ENCODER_TVDAC, "TVDAC" },
	};

	type_name_fn(encoder_type)

	struct type_name connector_status_names[] = {
	{ DRM_MODE_CONNECTED, "connected" },
	{ DRM_MODE_DISCONNECTED, "disconnected" },
	{ DRM_MODE_UNKNOWNCONNECTION, "unknown" },
	};

	type_name_fn(connector_status)

	struct type_name connector_type_names[] = {
	{ DRM_MODE_CONNECTOR_Unknown, "unknown" },
	{ DRM_MODE_CONNECTOR_VGA, "VGA" },
	{ DRM_MODE_CONNECTOR_DVII, "DVI-I" },
	{ DRM_MODE_CONNECTOR_DVID, "DVI-D" },
	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
	{ DRM_MODE_CONNECTOR_Composite, "composite" },
	{ DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
	{ DRM_MODE_CONNECTOR_LVDS, "LVDS" },
	{ DRM_MODE_CONNECTOR_Component, "component" },
	{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
	{ DRM_MODE_CONNECTOR_DisplayPort, "displayport" },
	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
	{ DRM_MODE_CONNECTOR_TV, "TV" },
	{ DRM_MODE_CONNECTOR_eDP, "embedded displayport" },
	};

	type_name_fn(connector_type)

	/*
	* Mode setting with the kernel interfaces is a bit of a chore.
	* First you have to find the connector in question and make sure the
	* requested mode is available.
	* Then you need to find the encoder attached to that connector so you
	* can bind it with a free crtc.
	*/
	struct connector {
	uint32_t id;
	int mode_valid;
	drmModeModeInfo mode;
	drmModeEncoder *encoder;
	drmModeConnector *connector;
	int crtc;
	};

	static void dump_mode(drmModeModeInfo *mode)
	{
	printf(" %s %d %d %d %d %d %d %d %d %d 0x%x 0x%x %d\n",
	mode->name,
	mode->vrefresh,
	mode->hdisplay,
	mode->hsync_start,
	mode->hsync_end,
	mode->htotal,
	mode->vdisplay,
	mode->vsync_start,
	mode->vsync_end,
	mode->vtotal,
	mode->flags,
	mode->type,
	mode->clock);
	}
	static void dump_connectors(int fd, drmModeRes *resources)
	{
	int i, j;

	printf("Connectors:\n");
	printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\n");
	for (i = 0; i < resources->count_connectors; i++) {
	drmModeConnector *connector;

	connector = drmModeGetConnector(fd, resources->connectors[i]);
	if (!connector) {
	fprintf(stderr, "could not get connector %i: %s\n",
	resources->connectors[i], strerror(errno));
	continue;
	}

	printf("%d\t%d\t%s\t%s\t%dx%d\t\t%d\n",
	connector->connector_id,
	connector->encoder_id,
	connector_status_str(connector->connection),
	connector_type_str(connector->connector_type),
	connector->mmWidth, connector->mmHeight,
	connector->count_modes);

	if (!connector->count_modes)
	continue;

	printf(" modes:\n");
	printf(" name refresh (Hz) hdisp hss hse htot vdisp "
	"vss vse vtot flags type clock\n");
	for (j = 0; j < connector->count_modes; j++)
	dump_mode(&connector->modes[j]);

	drmModeFreeConnector(connector);
	}
	printf("\n");
	}

	static void dump_crtcs(int fd, drmModeRes *resources)
	{
	int i;

	printf("CRTCs:\n");
	printf("id\tfb\tpos\tsize\n");
	for (i = 0; i < resources->count_crtcs; i++) {
	drmModeCrtc *crtc;

	crtc = drmModeGetCrtc(fd, resources->crtcs[i]);
	if (!crtc) {
	fprintf(stderr, "could not get crtc %i: %s\n",
	resources->crtcs[i], strerror(errno));
	continue;
	}
	printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
	crtc->crtc_id,
	crtc->buffer_id,
	crtc->x, crtc->y,
	crtc->width, crtc->height);
	dump_mode(&crtc->mode);

	drmModeFreeCrtc(crtc);
	}
	printf("\n");
	}

	static void connector_find_preferred_mode(int fd, drmModeRes *resources,
	struct connector *c)
	{
	drmModeConnector *connector;
	drmModeEncoder *encoder = NULL;
	int i;

	/* First, find the connector & mode */
	c->mode_valid = 0;
	connector = drmModeGetConnector(fd, c->id);
	if (!connector) {
	fprintf(stderr, "could not get connector %d: %s\n",
	c->id, strerror(errno));
	drmModeFreeConnector(connector);
	return;
	}

	if (connector->connection != DRM_MODE_CONNECTED) {
	drmModeFreeConnector(connector);
	return;
	}

	if (!connector->count_modes) {
	fprintf(stderr, "connector %d has no modes\n", c->id);
	drmModeFreeConnector(connector);
	return;
	}

	if (connector->connector_id != c->id) {
	fprintf(stderr, "connector id doesn't match (%d != %d)\n",
	connector->connector_id, c->id);
	drmModeFreeConnector(connector);
	return;
	}

	for (i = 0; i < connector->count_modes; i++) {
	c->mode = connector->modes[i];
	if (c->mode.type & DRM_MODE_TYPE_PREFERRED) {
	c->mode_valid = 1;
	break;
	}
	}

	if (!c->mode_valid) {
	if (connector->count_modes > 0) {
	/* use the first mode as test mode */
	c->mode = connector->modes[0];
	c->mode_valid = 1;
	} else {
	return;
	}
	}

	/* Now get the encoder */
	for (i = 0; i < connector->count_encoders; i++) {
	encoder = drmModeGetEncoder(fd, connector->encoders[i]);

	if (!encoder) {
	fprintf(stderr, "could not get encoder %i: %s\n",
	resources->encoders[i], strerror(errno));
	drmModeFreeEncoder(encoder);
	continue;
	}

	break;
	}

	if (i == resources->count_encoders) {
	fprintf(stderr, "failed to find encoder\n");
	c->mode_valid = 0;
	return;
	}

	c->encoder = encoder;

	/* Find first CRTC not in use */
	for (i = 0; i < resources->count_crtcs; i++)
	if (resources->crtcs[i] &&
	(c->encoder->possible_crtcs & (1<<i)))
	break;

	if (i == resources->count_crtcs) {
	fprintf(stderr, "failed to find crtc\n");
	c->mode_valid = 0;
	return;
	}

	c->crtc = resources->crtcs[i];

	c->connector = connector;
	}

	static int test_cursor(int fd, struct connector *c)
	{
	int i;

	for(i = 0; i < 10; i++) {
	drmModeMoveCursor(fd, c->crtc, i*100, 0);
	sleep(1);
	}
	}

	static int update_display(int fd)
	{
	drmModeRes *resources;
	struct connector connector;
	int c;

	resources = drmModeGetResources(fd);
	if (!resources) {
	fprintf(stderr, "drmModeGetResources failed: %s\n",
	strerror(errno));
	return 0;
	}

	if (dump_info) {
	dump_connectors(fd, resources);
	dump_crtcs(fd, resources);
	}

	/* Find first connected displays */
	for (c = 0; c < resources->count_connectors; c++) {
	connector.id = resources->connectors[c];
	connector_find_preferred_mode(fd, resources, &connector);
	if (connector.mode_valid)
	break;
	}

	if (!connector.mode_valid) {
	fprintf(stderr, "failed: no valid mode\n");
	return 0;
	}

	test_cursor(fd, &connector);

	drmModeFreeResources(resources);
	return 1;
	}

	int main(int argc, char **argv)
	{
	int fd = -1;

	if ((fd = open("/dev/dri/card0", O_RDWR)) < 0) {
	drmError(fd, argv[0]);
	return 1;
	}

	if (update_display(fd))
	printf("Success!\n");

	return 0;
	}