[igt-dev] [PATCH i-g-t 5/5] tools: add support for msm_dp_compliance to IGT

Abhinav Kumar abhinavk at codeaurora.org
Fri Sep 4 00:54:39 UTC 2020


Add support for msm_dp_compliance to igt tools to validate
video pattern DP compliance tests on MSM chipsets.

Signed-off-by: Abhinav Kumar <abhinavk at codeaurora.org>
---
 tools/Makefile.am         |   4 +
 tools/Makefile.sources    |   6 +
 tools/meson.build         |  12 +
 tools/msm_dp_compliance.c | 812 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 834 insertions(+)
 create mode 100644 tools/msm_dp_compliance.c

diff --git a/tools/Makefile.am b/tools/Makefile.am
index f97f9e08..eac52be8 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -14,6 +14,10 @@ intel_dp_compliance_LDADD = $(top_builddir)/lib/libintel_tools.la
 bin_PROGRAMS += amd_hdmi_compliance
 amd_hdmi_compliance_CFLAGS = $(AM_CFLAGS) $(GLIB_CFLAGS)
 
+bin_PROGRAMS += msm_dp_compliance
+msm_dp_compliance_CFLAGS = $(AM_CFLAGS) $(GLIB_CFLAGS)
+msm_dp_compliance_LDADD = $(top_builddir)/lib/libintel_tools.la
+
 SUBDIRS = i915-perf null_state_gen registers
 
 AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/include/drm-uapi -I$(top_srcdir)/lib \
diff --git a/tools/Makefile.sources b/tools/Makefile.sources
index 47171490..c93bfe7d 100644
--- a/tools/Makefile.sources
+++ b/tools/Makefile.sources
@@ -72,3 +72,9 @@ amd_hdmi_compliance_SOURCES = \
         amd_hdmi_compliance.c \
 		$(NULL)
 
+msm_dp_compliance_SOURCES = \
+        msm_dp_compliance.c \
+		igt_dp_compliance.h \
+		igt_dp_compliance_hotplug.c \
+		igt_compliance_utils.c \
+		$(NULL)
diff --git a/tools/meson.build b/tools/meson.build
index 56877fb3..65f78938 100644
--- a/tools/meson.build
+++ b/tools/meson.build
@@ -101,5 +101,17 @@ executable('amd_hdmi_compliance', 'amd_hdmi_compliance.c',
 	   install_rpath : bindir_rpathdir,
 	   install : true)
 
+if libudev.found()
+		msm_dp_compliance_src = [
+		'msm_dp_compliance.c',
+		'igt_dp_compliance_hotplug.c',
+		'igt_compliance_utils.c'
+	]
+	executable('msm_dp_compliance', sources : msm_dp_compliance_src,
+			dependencies : [tool_deps, libudev],
+			install_rpath : bindir_rpathdir,
+			install : true)
+endif
+
 subdir('i915-perf')
 subdir('null_state_gen')
diff --git a/tools/msm_dp_compliance.c b/tools/msm_dp_compliance.c
new file mode 100644
index 00000000..7bc2bfa8
--- /dev/null
+++ b/tools/msm_dp_compliance.c
@@ -0,0 +1,812 @@
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ * Copyright © 2017 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.
+ *
+ * Displayport Compliance Testing Application
+ *
+ * This is the userspace component of the Displayport Compliance testing
+ * software required for compliance testing of the MSM Display Port driver.
+ * This must be running in order to successfully complete Display Port
+ * compliance testing. This app and the kernel code that accompanies it has been
+ * written to satify the requirements of the Displayport Link CTS 1.2 rev1.1
+ * specification from VESA. Note that this application does not support eDP
+ * compliance testing.
+ *
+ * Compliance Testing requires several components:
+ *   - A kernel build that contains the patch set for DP compliance support
+ *   - A Displayport Compliance Testing appliance such as Qdbox 980
+ *   - This user application
+ *   - A windows host machine to run the Qdbox 980 test software
+ *   - Root access on the DUT due to the use of sysfs utility
+ *
+ * Test Setup:
+ * It is strongly recommended that the windows host, test appliance and DUT
+ * be freshly restarted before any testing begins to ensure that any previous
+ * configurations and settings will not interfere with test process. Refer to
+ * the test appliance documentation for setup, software installation and
+ * operation specific to that device.
+ *
+ * The Linux DUT must be in text (console) mode and cannot have any other
+ * display manager running. You must be logged in as root to run this user app.
+ * Once the user application is up and running, waiting for test requests, the
+ * software on the windows host can now be used to execute the compliance tests.
+ *
+ * This userspace application supports following tests from the DP CTS Spec
+ * Rev 1.1:
+ *   - Video Pattern generation tests: This supports only the 24 and
+ *     18bpp color
+ *     ramp test pattern (4.3.3.1).
+ *
+ * Connections (required):
+ *   - Test Appliance connected to the external Displayport connector on the DUT
+ *   - Test Appliance Monitor Out connected to Displayport connector on the
+ * monitor
+ *   - Test appliance connected to the Windows Host via USB
+ *
+ * Debugfs Files:
+ * The file root for all  the debugfs file:
+ * /sys/kernel/debug/dri/0/
+ *
+ * The specific files are as follows:
+ *
+ * msm_dp_test_active
+ * A simple flag that indicates whether or not compliance testing is currently
+ * active in the kernel. This flag is polled by userspace and once set, invokes
+ * the test handler in the user app. This flag is set by the test handler in the
+ * kernel after reading the registers requested by the test appliance.
+ *
+ * msm_dp_test_data
+ * Test data is used by the kernel to pass parameters to the user app. Eg: In
+ * case of EDID tests, the data that is delivered to the userspace is the video
+ * mode to be set for the test.
+ * In case of video pattern test, the data that is delivered to the userspace is
+ * the width and height of the test pattern and the bits per color value.
+ *
+ * msm_dp_test_type
+ * The test type variable instructs the user app as to what the requested test
+ * was from the sink device. These values defined at the top of the
+ * application's main implementation file must be kept in sync with the
+ * values defined in the kernel's drm_dp_helper.h file.
+ * This app is based on some prior work submitted in April 2015 by Todd Previte
+ * (<tprevite at gmail.com>).
+ *
+ * This work is based upon the intel_dp_compliance.c authored by
+ * Manasi Navare <manasi.d.navare at intel.com>
+ *
+ *
+ * This tool can be run as:
+ * ./msm_dp_compliance  It will wait till you start compliance suite from
+ * Qdbox 980.
+ * ./msm_dp_compliance -h  This will open the help
+ * ./msm_dp_compliance -i  This will provide information about current
+ * connectors/CRTCs. This can be used for debugging purpose.
+ *
+ * Authors:
+ *    Abhinav Kumar <abhinavk at codeaurora.org>
+ *
+ * Elements of the modeset code adapted from David Herrmann's
+ * DRM modeset example
+ *
+ */
+#include "igt.h"
+#include <errno.h>
+#include <getopt.h>
+#include <math.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <strings.h>
+#include <unistd.h>
+#include <termios.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <assert.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <time.h>
+
+#include "igt_dp_compliance.h"
+
+#include <stdlib.h>
+#include <signal.h>
+
+/* User Input definitions */
+#define HELP_DESCRIPTION 1
+
+/* Debugfs file definitions */
+#define MSM_DP_TEST_TYPE_FILE		"msm_dp_test_type"
+#define MSM_DP_TEST_ACTIVE_FILE	"msm_dp_test_active"
+#define MSM_DP_TEST_DATA_FILE		"msm_dp_test_data"
+
+/* DRM definitions - must be kept in sync with the DRM header */
+#define DP_TEST_LINK_VIDEO_PATTERN	(1 << 1)
+
+/* Global file pointers for the sysfs files */
+FILE *test_active_fp, *test_data_fp, *test_type_fp;
+
+bool video_pattern_flag;
+
+/* Video pattern test globals */
+uint16_t hdisplay;
+uint16_t vdisplay;
+uint8_t bitdepth;
+
+drmModeRes *resources;
+int drm_fd, modes, gen;
+uint64_t tiling = LOCAL_DRM_FORMAT_MOD_NONE;
+uint32_t depth = 24, stride, bpp;
+int specified_mode_num = -1, specified_disp_id = -1;
+int width, height;
+uint32_t test_crtc;
+uint32_t active_crtc;
+uint32_t test_connector_id;
+enum {
+	MSM_MODE_INVALID = -1,
+	MSM_MODE_NONE = 0,
+	MSM_MODE_VIDEO_PATTERN_TEST
+} msm_display_mode;
+
+struct test_video_pattern {
+	uint16_t hdisplay;
+	uint16_t vdisplay;
+	uint8_t bitdepth;
+	uint32_t fb;
+	uint32_t size;
+	struct igt_fb fb_pattern;
+	drmModeModeInfo mode;
+	uint32_t *pixmap;
+};
+
+struct connector {
+	uint32_t id;
+	int mode_valid;
+	drmModeModeInfo mode, mode_failsafe;
+	drmModeConnector *connector;
+	int crtc;
+	/* Standard and preferred frame buffer*/
+	uint8_t *pixmap;
+
+	struct test_video_pattern test_pattern;
+};
+
+static void clear_test_active(void)
+{
+	rewind(test_active_fp);
+	fprintf(test_active_fp, "%d", 0);
+	fflush(test_active_fp);
+}
+
+static FILE *fopenat(int dir, const char *name, const char *mode)
+{
+	int fd = openat(dir, name, O_RDWR);
+
+	return fdopen(fd, mode);
+}
+
+static void setup_debugfs_files(void)
+{
+	int dir = igt_debugfs_dir(drm_fd);
+
+	test_type_fp = fopenat(dir, MSM_DP_TEST_TYPE_FILE, "r");
+	igt_require(test_type_fp);
+
+	test_data_fp = fopenat(dir, MSM_DP_TEST_DATA_FILE, "r");
+	igt_require(test_data_fp);
+	test_active_fp = fopenat(dir, MSM_DP_TEST_ACTIVE_FILE, "w+");
+
+	igt_require(test_active_fp);
+
+	close(dir);
+
+	/* Reset the active flag for safety */
+	clear_test_active();
+}
+
+static unsigned long get_test_type(void)
+{
+	unsigned long test_type;
+	int ret;
+
+	if (!test_type_fp)
+		fprintf(stderr, "Invalid test_type file\n");
+	rewind(test_type_fp);
+	ret = fscanf(test_type_fp, "%lx", &test_type);
+	if (ret < 1 || test_type <= 0) {
+		igt_warn("test_type read failed - %lx\n", test_type);
+		return 0;
+	}
+
+	return test_type;
+}
+
+static void get_test_videopattern_data(void)
+{
+	int count = 0;
+	uint16_t video_pattern_value[3];
+	char video_pattern_attribute[15];
+	int ret;
+
+	if (!test_data_fp)
+		fprintf(stderr, "Invalid test_data file\n");
+
+	rewind(test_data_fp);
+	while (!feof(test_data_fp) && count < 3) {
+		ret = fscanf(test_data_fp, "%s %u\n", video_pattern_attribute,
+		       (unsigned int *)&video_pattern_value[count++]);
+		if (ret < 2) {
+			igt_warn("test_data read failed\n");
+			return;
+		}
+	}
+
+	hdisplay = video_pattern_value[0];
+	vdisplay = video_pattern_value[1];
+	bitdepth = video_pattern_value[2];
+	igt_info("Hdisplay = %d\n", hdisplay);
+	igt_info("Vdisplay = %d\n", vdisplay);
+	igt_info("BitDepth = %u\n", bitdepth);
+
+}
+
+static int process_test_request(int test_type)
+{
+	int mode;
+	bool valid = false;
+
+	switch (test_type) {
+	case DP_TEST_LINK_VIDEO_PATTERN:
+		video_pattern_flag = true;
+		get_test_videopattern_data();
+		mode = MSM_MODE_VIDEO_PATTERN_TEST;
+		valid = true;
+		break;
+	default:
+		/* Unknown test type */
+		fprintf(stderr, "Invalid test request, ignored.\n");
+		break;
+	}
+
+	if (valid)
+		return update_display(mode, true);
+
+	return -1;
+}
+
+static void dump_info(void)
+{
+	igt_dump_connectors_fd(drm_fd);
+	igt_dump_crtcs_fd(drm_fd);
+}
+
+static int setup_video_pattern_framebuffer(struct connector *dp_conn)
+{
+	uint32_t  video_width, video_height;
+
+	video_width = dp_conn->test_pattern.hdisplay;
+	video_height = dp_conn->test_pattern.vdisplay;
+
+	dp_conn->test_pattern.fb = igt_create_fb(drm_fd,
+			video_width, video_height,
+			DRM_FORMAT_XRGB8888,
+			LOCAL_DRM_FORMAT_MOD_NONE,
+			&dp_conn->test_pattern.fb_pattern);
+	igt_assert(dp_conn->test_pattern.fb);
+
+
+	dp_conn->test_pattern.pixmap = kmstest_dumb_map_buffer(drm_fd,
+			dp_conn->test_pattern.fb_pattern.gem_handle,
+			dp_conn->test_pattern.fb_pattern.size,
+			PROT_READ | PROT_WRITE);
+
+	if (dp_conn->test_pattern.pixmap == NULL)
+		return -1;
+
+	dp_conn->test_pattern.size = dp_conn->test_pattern.fb_pattern.size;
+	memset(dp_conn->test_pattern.pixmap, 0, dp_conn->test_pattern.size);
+	return 0;
+
+}
+
+static int set_test_mode(struct connector *dp_conn)
+{
+	int ret = 0;
+	int i;
+	drmModeConnector *c = dp_conn->connector;
+
+	/* Ignore any disconnected devices */
+	if (c->connection != DRM_MODE_CONNECTED) {
+		igt_warn("Connector %u disconnected\n", c->connector_id);
+		return -ENOENT;
+	}
+	igt_info("Connector setup:\n");
+
+	/*
+	 * to-do: for cases where driver doesn't support 4K but
+	 * its the preferred mode of the sink, use 640x480 as
+	 * default resolution
+	 */
+
+	for (i = 0; i < c->count_modes; i++) {
+		if (c->modes[i].hdisplay == 640 &&
+			c->modes[i].vdisplay == 480 &&
+			c->modes[i].vrefresh == 60) {
+			igt_info("found idx of failsafe mode = %d\n", i);
+			break;
+		}
+	}
+
+	if (i == c->count_modes) {
+		igt_info("didn't find failsafe using default\n");
+		i = 0;
+	}
+
+	dp_conn->test_pattern.mode = c->modes[i];
+	dp_conn->test_pattern.mode.hdisplay = c->modes[i].hdisplay;
+	dp_conn->test_pattern.mode.vdisplay = c->modes[i].vdisplay;
+
+	igt_info("failsafe (mode %d) for connector %u is %ux%u\n", i,
+		 dp_conn->id, c->modes[i].hdisplay, c->modes[i].vdisplay);
+	fflush(stdin);
+
+	if (video_pattern_flag) {
+		dp_conn->test_pattern.hdisplay = hdisplay;
+		dp_conn->test_pattern.vdisplay = vdisplay;
+		dp_conn->test_pattern.bitdepth = bitdepth;
+
+		ret = setup_video_pattern_framebuffer(dp_conn);
+		if (ret) {
+			igt_warn("Creating framebuffer for connector %u failed (%d)\n",
+				 c->connector_id, ret);
+			return ret;
+		}
+
+		ret = igt_fill_cts_framebuffer(dp_conn->test_pattern.pixmap,
+				dp_conn->test_pattern.hdisplay,
+				dp_conn->test_pattern.vdisplay,
+				dp_conn->test_pattern.bitdepth,
+				0);
+		if (ret) {
+			igt_warn("Filling framebuffer for connector %u failed (%d)\n",
+				 c->connector_id, ret);
+			return ret;
+		}
+		/* unmapping the buffer previously mapped during setup */
+		munmap(dp_conn->test_pattern.pixmap,
+				dp_conn->test_pattern.size);
+	}
+
+	return ret;
+}
+
+static int set_video(int mode, struct connector *test_connector)
+{
+	drmModeModeInfo *requested_mode;
+	uint32_t required_fb_id;
+	struct igt_fb required_fb;
+	int ret = 0;
+
+	switch (mode) {
+	case MSM_MODE_NONE:
+		igt_info("NONE\n");
+		ret = drmModeSetCrtc(drm_fd, test_connector->crtc,
+				     -1, 0, 0, NULL, 0, NULL);
+		goto out;
+	case MSM_MODE_VIDEO_PATTERN_TEST:
+		igt_info("VIDEO PATTERN TEST\n");
+		requested_mode = &test_connector->test_pattern.mode;
+		required_fb_id = test_connector->test_pattern.fb;
+		required_fb = test_connector->test_pattern.fb_pattern;
+		break;
+	case MSM_MODE_INVALID:
+	default:
+		igt_warn("INVALID! (%08x) Mode set aborted!\n", mode);
+		return -1;
+	}
+
+	igt_info("CRTC(%u):", test_connector->crtc);
+	kmstest_dump_mode(requested_mode);
+	ret = drmModeSetCrtc(drm_fd, test_connector->crtc, required_fb_id, 0, 0,
+			     &test_connector->id, 1, requested_mode);
+	if (ret) {
+		igt_warn("Failed to set mode (%dx%d@%dHz): %s\n",
+			 requested_mode->hdisplay, requested_mode->vdisplay,
+			 requested_mode->vrefresh, strerror(errno));
+		igt_remove_fb(drm_fd, &required_fb);
+
+	}
+	/* Keep the pattern for 1 sec for Qdbox 980 to detect it */
+	sleep(1);
+
+out:
+	if (ret) {
+		igt_warn("Failed to set CRTC for connector %u\n",
+			 test_connector->id);
+	}
+
+	return ret;
+}
+
+static int
+set_default_mode(struct connector *c, bool set_mode)
+{
+	unsigned int fb_id = 0;
+	struct igt_fb fb_info;
+	int ret = 0;
+	int i;
+	drmModeConnector *conn = c->connector;
+
+	if (!set_mode) {
+		igt_info("not resetting the mode\n");
+		ret = drmModeSetCrtc(drm_fd, c->crtc, 0, 0, 0,
+				     NULL, 0, NULL);
+		if (ret)
+			igt_warn("Failed to unset mode");
+		return ret;
+	}
+
+	for (i = 0; i < conn->count_modes; i++) {
+		if (conn->modes[i].hdisplay == 640 &&
+			conn->modes[i].vdisplay == 480 &&
+			conn->modes[i].vrefresh == 60) {
+			igt_info("found idx of failsafe mode = %d\n", i);
+			break;
+		}
+	}
+
+	if (i == conn->count_modes) {
+		igt_info("didn't find failsafe using default\n");
+		i = 0;
+	}
+
+	c->mode = c->connector->modes[i];
+
+	width = c->mode.hdisplay;
+	height = c->mode.vdisplay;
+
+	fb_id = igt_create_pattern_fb(drm_fd, width, height,
+				      DRM_FORMAT_XRGB8888,
+				      tiling, &fb_info);
+
+	kmstest_dump_mode(&c->mode);
+	drmModeSetCrtc(drm_fd, c->crtc, -1, 0, 0, NULL, 0, NULL);
+	ret = drmModeSetCrtc(drm_fd, c->crtc, fb_id, 0, 0,
+			     &c->id, 1, &c->mode);
+	if (ret) {
+		igt_warn("Failed to set mode (%dx%d@%dHz): %s\n",
+			 width, height, c->mode.vrefresh, strerror(errno));
+		igt_remove_fb(drm_fd, &fb_info);
+
+	}
+
+	return ret;
+}
+
+static uint32_t find_crtc_for_connector(drmModeConnector *c)
+{
+	drmModeEncoder *e;
+	drmModeCrtcPtr crtc_ptr;
+	int i;
+
+	active_crtc = 0;
+
+	for (i = 0; i < c->count_encoders; i++) {
+		e = drmModeGetEncoder(drm_fd, c->encoders[i]);
+
+		 /* if there is an active crtc use it */
+		if (e->crtc_id) {
+			active_crtc = e->crtc_id;
+			drmModeFreeEncoder(e);
+			break;
+		}
+		drmModeFreeEncoder(e);
+	}
+
+	/* no need to search further if active crtc is found */
+	if (active_crtc)
+		return active_crtc;
+
+	/*
+	 * if there is no active crtc find one from the list of
+	 * unused ones. Cannot use anything from possible_crtc of
+	 * of encoder because it then tries to steal the crtc of the
+	 * primary display. DPU driver does not support switching CRTCs
+	 * across displays in the same commit. Hence need to find some
+	 * other unused crtc.
+	 */
+	for (i = 0; i < resources->count_crtcs; i++) {
+		crtc_ptr = drmModeGetCrtc(drm_fd, resources->crtcs[i]);
+		/* if a crtc which is unused is found , use it */
+		if (!crtc_ptr->mode_valid) {
+			active_crtc = crtc_ptr->crtc_id;
+			drmModeFreeCrtc(crtc_ptr);
+			break;
+		}
+		drmModeFreeCrtc(crtc_ptr);
+	}
+
+	return active_crtc;
+}
+
+/*
+ * Re-probe connectors and do a modeset based on test request or
+ * in case of a hotplug uevent.
+ *
+ * @mode: Video mode requested by the test
+ * @is_compliance_test: 1: If it is a compliance test
+ *                      0: If it is a hotplug event
+ *
+ * Returns:
+ * 0: On Success
+ * -1: On failure
+ */
+int update_display(int mode, bool is_compliance_test)
+{
+	struct connector *connectors, *conn;
+	int cnt, ret = 0;
+	bool set_mode;
+	//int crtc;
+
+	resources = drmModeGetResources(drm_fd);
+	if (!resources) {
+		igt_warn("drmModeGetResources failed: %s\n", strerror(errno));
+		return -1;
+	}
+
+	connectors = calloc(resources->count_connectors,
+			    sizeof(struct connector));
+	if (!connectors)
+		return -1;
+
+	/* Find any connected displays */
+	for (cnt = 0; cnt < resources->count_connectors; cnt++) {
+		drmModeConnector *c;
+
+		conn = &connectors[cnt];
+		conn->id = resources->connectors[cnt];
+		c = drmModeGetConnector(drm_fd, conn->id);
+		if (c->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+			c->connection == DRM_MODE_CONNECTED) {
+			test_connector_id = c->connector_id;
+			conn->connector = c;
+			conn->crtc = find_crtc_for_connector(c);
+			test_crtc = conn->crtc;
+			set_mode = true;
+			break;
+		} else if (c->connector_id == test_connector_id &&
+			   c->connection == DRM_MODE_DISCONNECTED) {
+			conn->connector = c;
+			conn->crtc = test_crtc;
+			set_mode = false;
+			break;
+		}
+	}
+
+	if (cnt == resources->count_connectors) {
+		ret = -1;
+		goto err;
+	}
+
+	if (is_compliance_test) {
+		set_test_mode(conn);
+		ret = set_video(MSM_MODE_NONE, conn);
+		ret = set_video(mode, conn);
+
+	} else
+		ret = set_default_mode(conn, set_mode);
+
+ err:
+	drmModeFreeConnector(conn->connector);
+	/* Error condition if no connected displays */
+	free(connectors);
+	drmModeFreeResources(resources);
+	return ret;
+}
+
+static const char optstr[] = "hi";
+
+static void __attribute__((noreturn)) usage(char *name, char opt)
+{
+	igt_info("usage: %s [-hi]\n", name);
+	igt_info("\t-i\tdump info\n");
+	igt_info("\tDefault is to respond to Qd980 tests\n");
+	exit((opt != 'h') ? -1 : 0);
+}
+
+static void cleanup_debugfs(void)
+{
+	fclose(test_active_fp);
+	fclose(test_data_fp);
+	fclose(test_type_fp);
+}
+
+static void __attribute__((noreturn)) cleanup_and_exit(int ret)
+{
+	cleanup_debugfs();
+	close(drm_fd);
+	igt_info("Compliance testing application exiting\n");
+	exit(ret);
+}
+
+static void cleanup_test(void)
+{
+	video_pattern_flag = false;
+	hdisplay = 0;
+	vdisplay = 0;
+	bitdepth = 0;
+}
+
+static void read_test_request(void)
+{
+	unsigned long test_type;
+
+	test_type = get_test_type();
+
+	process_test_request(test_type);
+	cleanup_test();
+	clear_test_active();
+}
+
+static gboolean test_handler(GIOChannel *source, GIOCondition condition,
+			     gpointer data)
+{
+	unsigned long test_active;
+	int ret;
+
+	rewind(test_active_fp);
+
+	ret = fscanf(test_active_fp, "%lx", &test_active);
+	if (ret < 1)
+		return FALSE;
+
+	if (test_active)
+		read_test_request();
+
+	return TRUE;
+}
+
+static gboolean input_event(GIOChannel *source, GIOCondition condition,
+				gpointer data)
+{
+	gchar buf[2];
+	gsize count;
+
+	count = read(g_io_channel_unix_get_fd(source), buf, sizeof(buf));
+	if (buf[0] == 'q' && (count == 1 || buf[1] == '\n'))
+		cleanup_and_exit(0);
+
+	return TRUE;
+}
+
+int main(int argc, char **argv)
+{
+	int c;
+	int ret = 0;
+	GIOChannel *stdinchannel, *testactive_channel;
+	GMainLoop *mainloop;
+	bool opt_dump_info = false;
+	struct option long_opts[] = {
+		{"help-description", 0, 0, HELP_DESCRIPTION},
+		{"help", 0, 0, 'h'},
+	};
+
+	enter_exec_path(argv);
+
+	while ((c = getopt_long(argc, argv, optstr, long_opts, NULL)) != -1) {
+		switch (c) {
+		case 'i':
+			opt_dump_info = true;
+			break;
+		case HELP_DESCRIPTION:
+			igt_info("DP Compliance Test Suite using Qd 980\n");
+			igt_info("Video Pattern Generation tests\n");
+			exit(0);
+			break;
+		default:
+			/* fall through */
+		case 'h':
+			usage(argv[0], c);
+			break;
+		}
+	}
+
+	set_termio_mode();
+
+	drm_fd = drm_open_driver(DRIVER_ANY);
+
+	kmstest_set_vt_graphics_mode();
+	setup_debugfs_files();
+	cleanup_test();
+	if (opt_dump_info) {
+		dump_info();
+		goto out_close;
+	}
+
+	/* Get the DP connector ID and CRTC */
+	if (update_display(0, false)) {
+		igt_warn("Failed to set default mode\n");
+		ret = -1;
+		goto out_close;
+	}
+
+	mainloop = g_main_loop_new(NULL, FALSE);
+	if (!mainloop) {
+		igt_warn("Failed to create GMainLoop\n");
+		ret = -1;
+		goto out_close;
+	}
+
+	if (!igt_dp_compliance_setup_hotplug()) {
+		igt_warn("Failed to initialize hotplug support\n");
+		goto out_mainloop;
+	}
+
+	testactive_channel = g_io_channel_unix_new(fileno(test_active_fp));
+	if (!testactive_channel) {
+		igt_warn("Failed to create test_active GIOChannel\n");
+		goto out_close;
+	}
+
+	ret = g_io_add_watch(testactive_channel, G_IO_IN | G_IO_ERR,
+			     test_handler, NULL);
+	if (ret < 0) {
+		igt_warn("Failed to add watch on udev GIOChannel\n");
+			goto out_close;
+	}
+
+	stdinchannel = g_io_channel_unix_new(0);
+	if (!stdinchannel) {
+		igt_warn("Failed to create stdin GIOChannel\n");
+		goto out_hotplug;
+	}
+
+	ret = g_io_add_watch(stdinchannel, G_IO_IN | G_IO_ERR, input_event,
+			     NULL);
+	if (ret < 0) {
+		igt_warn("Failed to add watch on stdin GIOChannel\n");
+		goto out_stdio;
+	}
+
+	ret = 0;
+
+	igt_info("*************DP Compliance Testing using Qdbox 980*************\n");
+	igt_info("Waiting for test request......\n");
+
+	g_main_loop_run(mainloop);
+
+out_stdio:
+	g_io_channel_shutdown(stdinchannel, TRUE, NULL);
+out_hotplug:
+	igt_dp_compliance_cleanup_hotplug();
+out_mainloop:
+	g_main_loop_unref(mainloop);
+out_close:
+	cleanup_debugfs();
+	close(drm_fd);
+
+	igt_assert_eq(ret, 0);
+
+	igt_info("Compliance testing application exiting\n");
+	igt_exit();
+}
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project



More information about the igt-dev mailing list