<commit_before>/*
 * Copyright © 2013 Intel Corporation
 *
 * 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 (including the next
 * paragraph) 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.
 *
 * Authors:
 * 	<NAME> <<EMAIL>>
 * 	<NAME> <<EMAIL>>
 */

#define _GNU_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdarg.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <stdlib.h>
#include <linux/kd.h>
#include <errno.h>

#include <i915_drm.h>

#include "drmtest.h"
#include "igt_kms.h"
#include "igt_aux.h"

/*
 * There hasn't been a release of libdrm containing these #define's yet, so
 * copy them here to allow compilation to succeed in the mean time.
 *
 * We can drop these #define's and just make i-g-t depend on the proper libdrm
 * version in the future.
 */
#define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2
#define DRM_PLANE_TYPE_OVERLAY 0
#define DRM_PLANE_TYPE_PRIMARY 1
#define DRM_PLANE_TYPE_CURSOR  2



/**
 * SECTION:igt_kms
 * @short_description: Kernel modesetting support library
 * @title: i-g-t kms
 * @include: igt_kms.h
 *
 * This library provides support to enumerate and set modeset configurations.
 *
 * Since this library is very much still a work-in-progress and the interfaces
 * still in-flux detailed api documentation is currently still missing.
 *
 * Note that this library's header pulls in the [i-g-t framebuffer](intel-gpu-tools-i-g-t-framebuffer.html)
 * library as a dependency.
 */
const char *kmstest_pipe_str(int pipe)
{
	const char *str[] = { "A", "B", "C" };

	if (pipe > 2)
		return "invalid";

	return str[pipe];
}

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

#define type_name_fn(res) \
const char * kmstest_##res##_str(int type) {		\
	unsigned 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, "DP" },
	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
	{ DRM_MODE_CONNECTOR_TV, "TV" },
	{ DRM_MODE_CONNECTOR_eDP, "eDP" },
};

type_name_fn(connector_type)

static const char *mode_stereo_name(const drmModeModeInfo *mode)
{
	switch (mode->flags & DRM_MODE_FLAG_3D_MASK) {
	case DRM_MODE_FLAG_3D_FRAME_PACKING:
		return "FP";
	case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
		return "FA";
	case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
		return "LA";
	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
		return "SBSF";
	case DRM_MODE_FLAG_3D_L_DEPTH:
		return "LD";
	case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
		return "LDGFX";
	case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
		return "TB";
	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
		return "SBSH";
	default:
		return NULL;
	}
}

void kmstest_dump_mode(drmModeModeInfo *mode)
{
	const char *stereo = mode_stereo_name(mode);

	printf("  %s %d %d %d %d %d %d %d %d %d 0x%x 0x%x %d%s%s%s\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,
	       stereo ? " (3D:" : "",
	       stereo ? stereo : "",
	       stereo ? ")" : "");
	fflush(stdout);
}

int kmstest_get_pipe_from_crtc_id(int fd, int crtc_id)
{
	struct drm_i915_get_pipe_from_crtc_id pfci;
	int ret;

	memset(&pfci, 0, sizeof(pfci));
	pfci.crtc_id = crtc_id;
	ret = drmIoctl(fd, DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID, &pfci);
	igt_assert(ret == 0);

	return pfci.pipe;
}

void kmstest_set_connector_dpms(int fd, drmModeConnector *connector, int mode)
{
	int i, dpms = 0;
	bool found_it = false;

	for (i = 0; i < connector->count_props; i++) {
		struct drm_mode_get_property prop;

		prop.prop_id = connector->props[i];
		prop.count_values = 0;
		prop.count_enum_blobs = 0;
		if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop))
			continue;

		if (strcmp(prop.name, "DPMS"))
			continue;

		dpms = prop.prop_id;
		found_it = true;
		break;
	}
	igt_assert_f(found_it, "DPMS property not found on %d\n",
		     connector->connector_id);

	igt_assert(drmModeConnectorSetProperty(fd, connector->connector_id,
					       dpms, mode) == 0);
}

static signed long set_vt_mode(unsigned long mode)
{
	int fd;
	unsigned long prev_mode;

	fd = open("/dev/tty0", O_RDONLY);
	if (fd < 0)
		return -errno;

	prev_mode = 0;
	if (drmIoctl(fd, KDGETMODE, &prev_mode))
		goto err;
	if (drmIoctl(fd, KDSETMODE, (void *)mode))
		goto err;

	close(fd);

	return prev_mode;
err:
	close(fd);

	return -errno;
}

static unsigned long orig_vt_mode = -1UL;

static void restore_vt_mode_at_exit(int sig)
{
	if (orig_vt_mode != -1UL)
		set_vt_mode(orig_vt_mode);
}

/*
 * Set the VT to graphics mode and install an exit handler to restore the
 * original mode.
 */

void igt_set_vt_graphics_mode(void)
{
	long ret;

	igt_install_exit_handler(restore_vt_mode_at_exit);

	igt_disable_exit_handler();
	ret = set_vt_mode(KD_GRAPHICS);
	igt_enable_exit_handler();

	igt_assert(ret >= 0);
	orig_vt_mode = ret;
}

int kmstest_get_connector_default_mode(int drm_fd, drmModeConnector *connector,
				      drmModeModeInfo *mode)
{
	drmModeRes *resources;
	int i;

	resources = drmModeGetResources(drm_fd);
	if (!resources) {
		perror("drmModeGetResources failed");

		return -1;
	}

	if (!connector->count_modes) {
		fprintf(stderr, "no modes for connector %d\n",
			connector->connector_id);
		drmModeFreeResources(resources);

		return -1;
	}

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

	drmModeFreeResources(resources);

	return 0;
}

int kmstest_get_connector_config(int drm_fd, uint32_t connector_id,
				 unsigned long crtc_idx_mask,
				 struct kmstest_connector_config *config)
{
	drmModeRes *resources;
	drmModeConnector *connector;
	drmModeEncoder *encoder;
	int i, j;

	resources = drmModeGetResources(drm_fd);
	if (!resources) {
		perror("drmModeGetResources failed");
		goto err1;
	}

	/* First, find the connector & mode */
	connector = drmModeGetConnector(drm_fd, connector_id);
	if (!connector)
		goto err2;

	if (connector->connection != DRM_MODE_CONNECTED)
		goto err3;

	if (!connector->count_modes) {
		fprintf(stderr, "connector %d has no modes\n", connector_id);
		goto err3;
	}

	if (connector->connector_id != connector_id) {
		fprintf(stderr, "connector id doesn't match (%d != %d)\n",
			connector->connector_id, connector_id);
		goto err3;
	}

	/*
	 * Find given CRTC if crtc_id != 0 or else the first CRTC not in use.
	 * In both cases find the first compatible encoder and skip the CRTC
	 * if there is non such.
	 */
	encoder = NULL;		/* suppress GCC warning */
	for (i = 0; i < resources->count_crtcs; i++) {
		if (!resources->crtcs[i] || !(crtc_idx_mask & (1 << i)))
			continue;

		/* Now get a compatible encoder */
		for (j = 0; j < connector->count_encoders; j++) {
			encoder = drmModeGetEncoder(drm_fd,
						    connector->encoders[j]);

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

				continue;
			}

			if (encoder->possible_crtcs & (1 << i))
				goto found;

			drmModeFreeEncoder(encoder);
		}
	}

	goto err3;

found:
	if (kmstest_get_connector_default_mode(drm_fd, connector,
				       &config->default_mode) < 0)
		goto err4;

	config->connector = connector;
	config->encoder = encoder;
	config->crtc = drmModeGetCrtc(drm_fd, resources->crtcs[i]);
	config->crtc_idx = i;
	config->pipe = kmstest_get_pipe_from_crtc_id(drm_fd,
						     config->crtc->crtc_id);

	drmModeFreeResources(resources);

	return 0;
err4:
	drmModeFreeEncoder(encoder);
err3:
	drmModeFreeConnector(connector);
err2:
	drmModeFreeResources(resources);
err1:
	return -1;
}

static int get_card_number(int fd)
{
	struct stat buf;

	/* find the minor number of the device */
	fstat(fd, &buf);

	return minor(buf.st_rdev) & 0x3f;
}

static char* get_debugfs_connector_path(int drm_fd, drmModeConnector *connector,
					const char *file)
{
	char *path;

	asprintf(&path, "/sys/kernel/debug/dri/%d/%s-%d/%s",
		 get_card_number(drm_fd),
		 kmstest_connector_type_str(connector->connector_type),
		 connector->connector_type_id,
		 file);

	return path;
}

/**
 * kmstest_force_connector:
 * @fd: drm file descriptor
 * @connector: connector
 * @state: state to force on @connector
 *
 * Force the specified state on the specified connector.
 */
void kmstest_force_connector(int drm_fd, drmModeConnector *connector, enum
			     kmstest_force_connector_state state)
{
	char *path;
	const char *value;
	int debugfs_fd, ret;

	switch (state) {
	case FORCE_CONNECTOR_ON:
		value = "on";
		break;
	case FORCE_CONNECTOR_DIGITAL:
		value = "digital";
		break;
	case FORCE_CONNECTOR_OFF:
		value = "off";
		break;

	default:
	case FORCE_CONNECTOR_UNSPECIFIED:
		value = "unspecified";
		break;
	}

	path = get_debugfs_connector_path(drm_fd, connector, "force");
	debugfs_fd = open(path, O_WRONLY | O_TRUNC);
	free(path);

	igt_assert(debugfs_fd != -1);

	ret = write(debugfs_fd, value, strlen(value));
	close(debugfs_fd);

	igt_assert(ret != -1);
}

/**
 * kmstest_force_edid:
 * @drm_fd: drm file descriptor
 * @connector: connector to set @edid on
 * @edid: An EDID data block
 * @length: length of the EDID data. #EDID_LENGTH defines the standard EDID
 * length
 *
 * Set the EDID data on @connector to @edid. See #generic_edid and
 * #kmstest_generic_edid for a set of generic EDID data blocks.
 *
 * If @length is zero, the forced EDID will be removed.
 */
void kmstest_force_edid(int drm_fd, drmModeConnector *connector,
			const unsigned char *edid, size_t length)
{
	char *path;
	int debugfs_fd, ret;

	path = get_debugfs_connector_path(drm_fd, connector, "edid_override");

	debugfs_fd = open(path, O_WRONLY | O_TRUNC);

	free(path);

	igt_assert(debugfs_fd != -1);

	if (length == 0)
		ret = write(debugfs_fd, "reset", 5);
	else
		ret = write(debugfs_fd, edid, length);
	close(debugfs_fd);

	igt_assert(ret != -1);
}

void kmstest_free_connector_config(struct kmstest_connector_config *config)
{
	drmModeFreeCrtc(config->crtc);
	drmModeFreeEncoder(config->encoder);
	drmModeFreeConnector(config->connector);
}

const char *plane_name(enum igt_plane p)
{
	static const char *names[] = {
		[IGT_PLANE_1] = "plane1",
		[IGT_PLANE_2] = "plane2",
		[IGT_PLANE_3] = "plane3",
		[IGT_PLANE_CURSOR] = "cursor",
	};

	igt_assert(p < ARRAY_SIZE(names) && names[p]);

	return names[p];
}

/*
 * A small modeset API
 */

#define LOG_SPACES		"    "
#define LOG_N_SPACES		(sizeof(LOG_SPACES) - 1)

#define LOG_INDENT(d, section)				\
	do {						\
		igt_display_log(d, "%s {\n", section);	\
		igt_display_log_shift(d, 1);		\
	} while (0)
#define LOG_UNINDENT(d)					\
	do {						\
		igt_display_log_shift(d, -1);		\
		igt_display_log(d, "}\n");		\
	} while (0)
#define LOG(d, fmt, ...)	igt_display_log(d, fmt, ## __VA_ARGS__)

static void  __attribute__((format(printf, 2, 3)))
igt_display_log(igt_display_t *display, const char *fmt, ...)
{
	va_list args;
	int i;

	va_start(args, fmt);
	igt_debug("display: ");
	for (i = 0; i < display->log_shift; i++)
		igt_debug("%s", LOG_SPACES);
	igt_vlog(IGT_LOG_DEBUG, fmt, args);
	va_end(args);
}

static void igt_display_log_shift(igt_display_t *display, int shift)
{
	display->log_shift += shift;
	igt_assert(display->log_shift >= 0);
}

static void igt_output_refresh(igt_output_t *output)
{
	igt_display_t *display = output->display;
	int ret;
	unsigned long crtc_idx_mask;

	/* we mask out the pipes already in use */
	crtc_idx_mask = output->pending_crtc_idx_mask & ~display->pipes_in_use;

	if (output->valid)
		kmstest_free_connector_config(&output->config);
	ret = kmstest_get_connector_config(display->drm_fd,
					   output->id,
					   crtc_idx_mask,
					   &output->config);
	if (ret == 0)
		output->valid = true;
	else
		output->valid = false;

	if (!output->valid)
		return;

	if (!output->name) {
		drmModeConnector *c = output->config.connector;

		asprintf(&output->name, "%s-%d",
			 kmstest_connector_type_str(c->connector_type),
			 c->connector_type_id);
	}

	LOG(display, "%s: Selecting pipe %c\n", output->name,
	    pipe_name(output->config.pipe));

	display->pipes_in_use |= 1 << output->config.pipe;
}

static bool
get_property(igt_display_t *display,
	     uint32_t object_id, uint32_t object_type, const char *name,
	     uint32_t *prop_id /* out */, uint64_t *value /* out */)
{
	drmModeObjectPropertiesPtr proplist;
	drmModePropertyPtr prop = NULL;
	bool found = false;
	int i;

	proplist = drmModeObjectGetProperties(display->drm_fd,
					      object_id, object_type);
	for (i = 0; i < proplist->count_props; i++) {
		drmModeFreeProperty(prop);
		prop = drmModeGetProperty(display->drm_fd, proplist->props[i]);
		if (!prop)
			continue;

		if (strcmp(prop->name, name) == 0) {
			found = true;
			if (prop_id)
				*prop_id = proplist->props[i];
			if (value)
				*value = proplist->prop_values[i];
			goto out;
		}
	}

out:
	drmModeFreeProperty(prop);
	drmModeFreeObjectProperties(proplist);
	return found;
}

/*
 * Walk a plane's property list to determine its type.  If we don't
 * find a type property, then the kernel doesn't support universal
 * planes and we know the plane is an overlay/sprite.
 */
static int get_drm_plane_type(igt_display_t *display, uint32_t plane_id)
{
	uint64_t value;
	bool has_prop;

	has_prop = get_property(display, plane_id, DRM_MODE_OBJECT_PLANE,
				"type", NULL /* prop_id */, &value);
	if (has_prop)
		return (int)value;

	return DRM_PLANE_TYPE_OVERLAY;
}

void igt_display_init(igt_display_t *display, int drm_fd)
{
	drmModeRes *resources;
	drmModePlaneRes *plane_resources;<commit_msg>igt_kms: Provide a get_plane_property() shorthand<commit_after>/*
 * Copyright © 2013 Intel Corporation
 *
 * 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 (including the next
 * paragraph) 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.
 *
 * Authors:
 * 	<NAME> <<EMAIL>>
 * 	<NAME> <<EMAIL>>
 */

#define _GNU_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdarg.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <stdlib.h>
#include <linux/kd.h>
#include <errno.h>

#include <i915_drm.h>

#include "drmtest.h"
#include "igt_kms.h"
#include "igt_aux.h"

/*
 * There hasn't been a release of libdrm containing these #define's yet, so
 * copy them here to allow compilation to succeed in the mean time.
 *
 * We can drop these #define's and just make i-g-t depend on the proper libdrm
 * version in the future.
 */
#define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2
#define DRM_PLANE_TYPE_OVERLAY 0
#define DRM_PLANE_TYPE_PRIMARY 1
#define DRM_PLANE_TYPE_CURSOR  2



/**
 * SECTION:igt_kms
 * @short_description: Kernel modesetting support library
 * @title: i-g-t kms
 * @include: igt_kms.h
 *
 * This library provides support to enumerate and set modeset configurations.
 *
 * Since this library is very much still a work-in-progress and the interfaces
 * still in-flux detailed api documentation is currently still missing.
 *
 * Note that this library's header pulls in the [i-g-t framebuffer](intel-gpu-tools-i-g-t-framebuffer.html)
 * library as a dependency.
 */
const char *kmstest_pipe_str(int pipe)
{
	const char *str[] = { "A", "B", "C" };

	if (pipe > 2)
		return "invalid";

	return str[pipe];
}

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

#define type_name_fn(res) \
const char * kmstest_##res##_str(int type) {		\
	unsigned 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, "DP" },
	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
	{ DRM_MODE_CONNECTOR_TV, "TV" },
	{ DRM_MODE_CONNECTOR_eDP, "eDP" },
};

type_name_fn(connector_type)

static const char *mode_stereo_name(const drmModeModeInfo *mode)
{
	switch (mode->flags & DRM_MODE_FLAG_3D_MASK) {
	case DRM_MODE_FLAG_3D_FRAME_PACKING:
		return "FP";
	case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
		return "FA";
	case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
		return "LA";
	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
		return "SBSF";
	case DRM_MODE_FLAG_3D_L_DEPTH:
		return "LD";
	case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
		return "LDGFX";
	case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
		return "TB";
	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
		return "SBSH";
	default:
		return NULL;
	}
}

void kmstest_dump_mode(drmModeModeInfo *mode)
{
	const char *stereo = mode_stereo_name(mode);

	printf("  %s %d %d %d %d %d %d %d %d %d 0x%x 0x%x %d%s%s%s\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,
	       stereo ? " (3D:" : "",
	       stereo ? stereo : "",
	       stereo ? ")" : "");
	fflush(stdout);
}

int kmstest_get_pipe_from_crtc_id(int fd, int crtc_id)
{
	struct drm_i915_get_pipe_from_crtc_id pfci;
	int ret;

	memset(&pfci, 0, sizeof(pfci));
	pfci.crtc_id = crtc_id;
	ret = drmIoctl(fd, DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID, &pfci);
	igt_assert(ret == 0);

	return pfci.pipe;
}

void kmstest_set_connector_dpms(int fd, drmModeConnector *connector, int mode)
{
	int i, dpms = 0;
	bool found_it = false;

	for (i = 0; i < connector->count_props; i++) {
		struct drm_mode_get_property prop;

		prop.prop_id = connector->props[i];
		prop.count_values = 0;
		prop.count_enum_blobs = 0;
		if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop))
			continue;

		if (strcmp(prop.name, "DPMS"))
			continue;

		dpms = prop.prop_id;
		found_it = true;
		break;
	}
	igt_assert_f(found_it, "DPMS property not found on %d\n",
		     connector->connector_id);

	igt_assert(drmModeConnectorSetProperty(fd, connector->connector_id,
					       dpms, mode) == 0);
}

static signed long set_vt_mode(unsigned long mode)
{
	int fd;
	unsigned long prev_mode;

	fd = open("/dev/tty0", O_RDONLY);
	if (fd < 0)
		return -errno;

	prev_mode = 0;
	if (drmIoctl(fd, KDGETMODE, &prev_mode))
		goto err;
	if (drmIoctl(fd, KDSETMODE, (void *)mode))
		goto err;

	close(fd);

	return prev_mode;
err:
	close(fd);

	return -errno;
}

static unsigned long orig_vt_mode = -1UL;

static void restore_vt_mode_at_exit(int sig)
{
	if (orig_vt_mode != -1UL)
		set_vt_mode(orig_vt_mode);
}

/*
 * Set the VT to graphics mode and install an exit handler to restore the
 * original mode.
 */

void igt_set_vt_graphics_mode(void)
{
	long ret;

	igt_install_exit_handler(restore_vt_mode_at_exit);

	igt_disable_exit_handler();
	ret = set_vt_mode(KD_GRAPHICS);
	igt_enable_exit_handler();

	igt_assert(ret >= 0);
	orig_vt_mode = ret;
}

int kmstest_get_connector_default_mode(int drm_fd, drmModeConnector *connector,
				      drmModeModeInfo *mode)
{
	drmModeRes *resources;
	int i;

	resources = drmModeGetResources(drm_fd);
	if (!resources) {
		perror("drmModeGetResources failed");

		return -1;
	}

	if (!connector->count_modes) {
		fprintf(stderr, "no modes for connector %d\n",
			connector->connector_id);
		drmModeFreeResources(resources);

		return -1;
	}

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

	drmModeFreeResources(resources);

	return 0;
}

int kmstest_get_connector_config(int drm_fd, uint32_t connector_id,
				 unsigned long crtc_idx_mask,
				 struct kmstest_connector_config *config)
{
	drmModeRes *resources;
	drmModeConnector *connector;
	drmModeEncoder *encoder;
	int i, j;

	resources = drmModeGetResources(drm_fd);
	if (!resources) {
		perror("drmModeGetResources failed");
		goto err1;
	}

	/* First, find the connector & mode */
	connector = drmModeGetConnector(drm_fd, connector_id);
	if (!connector)
		goto err2;

	if (connector->connection != DRM_MODE_CONNECTED)
		goto err3;

	if (!connector->count_modes) {
		fprintf(stderr, "connector %d has no modes\n", connector_id);
		goto err3;
	}

	if (connector->connector_id != connector_id) {
		fprintf(stderr, "connector id doesn't match (%d != %d)\n",
			connector->connector_id, connector_id);
		goto err3;
	}

	/*
	 * Find given CRTC if crtc_id != 0 or else the first CRTC not in use.
	 * In both cases find the first compatible encoder and skip the CRTC
	 * if there is non such.
	 */
	encoder = NULL;		/* suppress GCC warning */
	for (i = 0; i < resources->count_crtcs; i++) {
		if (!resources->crtcs[i] || !(crtc_idx_mask & (1 << i)))
			continue;

		/* Now get a compatible encoder */
		for (j = 0; j < connector->count_encoders; j++) {
			encoder = drmModeGetEncoder(drm_fd,
						    connector->encoders[j]);

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

				continue;
			}

			if (encoder->possible_crtcs & (1 << i))
				goto found;

			drmModeFreeEncoder(encoder);
		}
	}

	goto err3;

found:
	if (kmstest_get_connector_default_mode(drm_fd, connector,
				       &config->default_mode) < 0)
		goto err4;

	config->connector = connector;
	config->encoder = encoder;
	config->crtc = drmModeGetCrtc(drm_fd, resources->crtcs[i]);
	config->crtc_idx = i;
	config->pipe = kmstest_get_pipe_from_crtc_id(drm_fd,
						     config->crtc->crtc_id);

	drmModeFreeResources(resources);

	return 0;
err4:
	drmModeFreeEncoder(encoder);
err3:
	drmModeFreeConnector(connector);
err2:
	drmModeFreeResources(resources);
err1:
	return -1;
}

static int get_card_number(int fd)
{
	struct stat buf;

	/* find the minor number of the device */
	fstat(fd, &buf);

	return minor(buf.st_rdev) & 0x3f;
}

static char* get_debugfs_connector_path(int drm_fd, drmModeConnector *connector,
					const char *file)
{
	char *path;

	asprintf(&path, "/sys/kernel/debug/dri/%d/%s-%d/%s",
		 get_card_number(drm_fd),
		 kmstest_connector_type_str(connector->connector_type),
		 connector->connector_type_id,
		 file);

	return path;
}

/**
 * kmstest_force_connector:
 * @fd: drm file descriptor
 * @connector: connector
 * @state: state to force on @connector
 *
 * Force the specified state on the specified connector.
 */
void kmstest_force_connector(int drm_fd, drmModeConnector *connector, enum
			     kmstest_force_connector_state state)
{
	char *path;
	const char *value;
	int debugfs_fd, ret;

	switch (state) {
	case FORCE_CONNECTOR_ON:
		value = "on";
		break;
	case FORCE_CONNECTOR_DIGITAL:
		value = "digital";
		break;
	case FORCE_CONNECTOR_OFF:
		value = "off";
		break;

	default:
	case FORCE_CONNECTOR_UNSPECIFIED:
		value = "unspecified";
		break;
	}

	path = get_debugfs_connector_path(drm_fd, connector, "force");
	debugfs_fd = open(path, O_WRONLY | O_TRUNC);
	free(path);

	igt_assert(debugfs_fd != -1);

	ret = write(debugfs_fd, value, strlen(value));
	close(debugfs_fd);

	igt_assert(ret != -1);
}

/**
 * kmstest_force_edid:
 * @drm_fd: drm file descriptor
 * @connector: connector to set @edid on
 * @edid: An EDID data block
 * @length: length of the EDID data. #EDID_LENGTH defines the standard EDID
 * length
 *
 * Set the EDID data on @connector to @edid. See #generic_edid and
 * #kmstest_generic_edid for a set of generic EDID data blocks.
 *
 * If @length is zero, the forced EDID will be removed.
 */
void kmstest_force_edid(int drm_fd, drmModeConnector *connector,
			const unsigned char *edid, size_t length)
{
	char *path;
	int debugfs_fd, ret;

	path = get_debugfs_connector_path(drm_fd, connector, "edid_override");

	debugfs_fd = open(path, O_WRONLY | O_TRUNC);

	free(path);

	igt_assert(debugfs_fd != -1);

	if (length == 0)
		ret = write(debugfs_fd, "reset", 5);
	else
		ret = write(debugfs_fd, edid, length);
	close(debugfs_fd);

	igt_assert(ret != -1);
}

void kmstest_free_connector_config(struct kmstest_connector_config *config)
{
	drmModeFreeCrtc(config->crtc);
	drmModeFreeEncoder(config->encoder);
	drmModeFreeConnector(config->connector);
}

const char *plane_name(enum igt_plane p)
{
	static const char *names[] = {
		[IGT_PLANE_1] = "plane1",
		[IGT_PLANE_2] = "plane2",
		[IGT_PLANE_3] = "plane3",
		[IGT_PLANE_CURSOR] = "cursor",
	};

	igt_assert(p < ARRAY_SIZE(names) && names[p]);

	return names[p];
}

/*
 * A small modeset API
 */

#define LOG_SPACES		"    "
#define LOG_N_SPACES		(sizeof(LOG_SPACES) - 1)

#define LOG_INDENT(d, section)				\
	do {						\
		igt_display_log(d, "%s {\n", section);	\
		igt_display_log_shift(d, 1);		\
	} while (0)
#define LOG_UNINDENT(d)					\
	do {						\
		igt_display_log_shift(d, -1);		\
		igt_display_log(d, "}\n");		\
	} while (0)
#define LOG(d, fmt, ...)	igt_display_log(d, fmt, ## __VA_ARGS__)

static void  __attribute__((format(printf, 2, 3)))
igt_display_log(igt_display_t *display, const char *fmt, ...)
{
	va_list args;
	int i;

	va_start(args, fmt);
	igt_debug("display: ");
	for (i = 0; i < display->log_shift; i++)
		igt_debug("%s", LOG_SPACES);
	igt_vlog(IGT_LOG_DEBUG, fmt, args);
	va_end(args);
}

static void igt_display_log_shift(igt_display_t *display, int shift)
{
	display->log_shift += shift;
	igt_assert(display->log_shift >= 0);
}

static void igt_output_refresh(igt_output_t *output)
{
	igt_display_t *display = output->display;
	int ret;
	unsigned long crtc_idx_mask;

	/* we mask out the pipes already in use */
	crtc_idx_mask = output->pending_crtc_idx_mask & ~display->pipes_in_use;

	if (output->valid)
		kmstest_free_connector_config(&output->config);
	ret = kmstest_get_connector_config(display->drm_fd,
					   output->id,
					   crtc_idx_mask,
					   &output->config);
	if (ret == 0)
		output->valid = true;
	else
		output->valid = false;

	if (!output->valid)
		return;

	if (!output->name) {
		drmModeConnector *c = output->config.connector;

		asprintf(&output->name, "%s-%d",
			 kmstest_connector_type_str(c->connector_type),
			 c->connector_type_id);
	}

	LOG(display, "%s: Selecting pipe %c\n", output->name,
	    pipe_name(output->config.pipe));

	display->pipes_in_use |= 1 << output->config.pipe;
}

static bool
get_property(igt_display_t *display,
	     uint32_t object_id, uint32_t object_type, const char *name,
	     uint32_t *prop_id /* out */, uint64_t *value /* out */)
{
	drmModeObjectPropertiesPtr proplist;
	drmModePropertyPtr prop = NULL;
	bool found = false;
	int i;

	proplist = drmModeObjectGetProperties(display->drm_fd,
					      object_id, object_type);
	for (i = 0; i < proplist->count_props; i++) {
		drmModeFreeProperty(prop);
		prop = drmModeGetProperty(display->drm_fd, proplist->props[i]);
		if (!prop)
			continue;

		if (strcmp(prop->name, name) == 0) {
			found = true;
			if (prop_id)
				*prop_id = proplist->props[i];
			if (value)
				*value = proplist->prop_values[i];
			goto out;
		}
	}

out:
	drmModeFreeProperty(prop);
	drmModeFreeObjectProperties(proplist);
	return found;
}

static bool
get_plane_property(igt_display_t *display, uint32_t plane_id, const char *name,
		   uint32_t *prop_id /* out */, uint64_t *value /* out */)
{
	return get_property(display, plane_id, DRM_MODE_OBJECT_PLANE,
			    name, prop_id, value);
}

/*
 * Walk a plane's property list to determine its type.  If we don't
 * find a type property, then the kernel doesn't support universal
 * planes and we know the plane is an overlay/sprite.
 */
static int get_drm_plane_type(igt_display_t *display, uint32_t plane_id)
{
	uint64_t value;
	bool has_prop;

	has_prop = get_plane_property(display, plane_id, "type",
				      NULL /* prop_id */, &value);
	if (has_prop)
		return (int)value;

	return DRM_PLANE_TYPE_OVERLAY;
}

void igt_display_init(igt_display_t *display, int drm_fd)
{
	drmModeRes *resources;
	drmModePlaneRes *plane_resources;
{'fraction_non_alphanumeric': 0.12425140263506272, 'fraction_numerical': 0.007186534703397844, 'mean_word_length': 4.209688013136289, 'pattern_counts': {'":': 0, '<': 67, '<?xml version=': 0, '>': 197, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4173984', 'n_tokens_mistral': 12912, 'n_tokens_neox': 11782, 'n_words': 2850}