/* * Copyright 2010 Intel Corporation * Jesse Barnes * * 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. */ /* * This program is intended for testing of display functionality. It should * allow for testing of * - hotplug * - mode setting * - clone & twin modes * - panel fitting * - test patterns & pixel generators * Additional programs can test the detected outputs against VBT provided * device lists (both docked & undocked). * * TODO: * - pixel generator in transcoder * - test pattern reg in pipe * - test patterns on outputs (e.g. TV) * - handle hotplug (leaks crtcs, can't handle clones) * - allow mode force * - expose output specific controls * - e.g. DDC-CI brightness * - HDMI controls * - panel brightness * - DP commands (e.g. poweroff) * - verify outputs against VBT/physical connectors */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include "xf86drm.h" #include "xf86drmMode.h" #include "intel_bufmgr.h" #include "i915_drm.h" struct udev_monitor *uevent_monitor; drmModeRes *resources; int fd, modes; #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) struct type_name { int type; char *name; }; #define type_name_fn(res) \ static 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 connector_find_preferred_mode(struct connector *c) { drmModeConnector *connector; drmModeEncoder *encoder = NULL; int i, j; /* 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 (j = 0; j < connector->count_modes; j++) { c->mode = connector->modes[j]; if (c->mode.flags & DRM_MODE_TYPE_PREFERRED) { c->mode_valid = 1; break; } } if (!c->mode_valid) { fprintf(stderr, "failed to find any modes on connector %d\n", c->id); 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; } c->encoder = encoder; if (i == resources->count_encoders) { fprintf(stderr, "failed to find encoder\n"); c->mode_valid = 0; return; } /* Find first CRTC not in use */ for (i = 0; i < resources->count_crtcs; i++) { if (resources->crtcs[i]) break; } c->crtc = resources->crtcs[i]; resources->crtcs[i] = 0; c->connector = connector; } static drm_intel_bo * allocate_buffer(drm_intel_bufmgr *bufmgr, int width, int height, int *stride) { int size; /* Scan-out has a 64 byte alignment restriction */ width *= 4; /* 32bpp */ size = (width + 63) & -64; *stride = size; size *= height; return drm_intel_bo_alloc(bufmgr, "frontbuffer", size, 0); } enum corner { topleft, topright, bottomleft, bottomright, }; static void paint_marker(cairo_t *cr, int x, int y, char *str, enum corner text_location) { cairo_text_extents_t extents; int xoff, yoff; cairo_set_font_size(cr, 18); cairo_text_extents(cr, str, &extents); switch (text_location) { case topleft: xoff = -20; xoff -= extents.width; yoff = -20; break; case topright: xoff = 20; yoff = -20; break; case bottomleft: xoff = -20; xoff -= extents.width; yoff = 20; break; case bottomright: xoff = 20; yoff = 20; break; default: xoff = 0; yoff = 0; } cairo_move_to(cr, x, y - 20); cairo_line_to(cr, x, y + 20); cairo_move_to(cr, x - 20, y); cairo_line_to(cr, x + 20, y); cairo_new_sub_path(cr); cairo_arc(cr, x, y, 10, 0, M_PI * 2); cairo_set_line_width(cr, 4); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_set_line_width(cr, 2); cairo_stroke(cr); cairo_move_to(cr, x + xoff, y + yoff); cairo_text_path(cr, str); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_fill(cr); } static void paint_output_info(cairo_t *cr, struct connector *c, int width, int height) { cairo_text_extents_t name_extents, mode_extents; char name_buf[128], mode_buf[128]; int i, x, y, modes_x, modes_y; /* Get text extents for each string */ snprintf(name_buf, sizeof name_buf, "%s", connector_type_str(c->connector->connector_type)); cairo_set_font_size(cr, 48); cairo_select_font_face(cr, "Helvetica", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); cairo_text_extents(cr, name_buf, &name_extents); snprintf(mode_buf, sizeof mode_buf, "%s @ %dHz on %s encoder", c->mode.name, c->mode.vrefresh, encoder_type_str(c->encoder->encoder_type)); cairo_set_font_size(cr, 36); cairo_text_extents(cr, mode_buf, &mode_extents); /* Paint output name */ x = width / 2; x -= name_extents.width / 2; y = height / 2; y -= (name_extents.height / 2) - (mode_extents.height / 2) - 10; cairo_set_font_size(cr, 48); cairo_move_to(cr, x, y); cairo_text_path(cr, name_buf); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_fill(cr); /* Paint mode name */ x = width / 2; x -= mode_extents.width / 2; modes_x = x; y = height / 2; y += (mode_extents.height / 2) + (name_extents.height / 2) + 10; cairo_set_font_size(cr, 36); cairo_move_to(cr, x, y); cairo_text_path(cr, mode_buf); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_fill(cr); /* List available modes */ snprintf(mode_buf, sizeof mode_buf, "Available modes:"); cairo_set_font_size(cr, 18); cairo_text_extents(cr, mode_buf, &mode_extents); x = modes_x; modes_x = x + mode_extents.width; y += mode_extents.height + 10; modes_y = y; cairo_move_to(cr, x, y); cairo_text_path(cr, mode_buf); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_fill(cr); for (i = 0; i < c->connector->count_modes; i++) { snprintf(mode_buf, sizeof mode_buf, "%s @ %dHz", c->connector->modes[i].name, c->connector->modes[i].vrefresh); cairo_set_font_size(cr, 18); cairo_text_extents(cr, mode_buf, &mode_extents); x = modes_x - mode_extents.width; /* right justify modes */ y += mode_extents.height + 10; if (y + mode_extents.height >= height) { y = modes_y + mode_extents.height + 10; modes_x += mode_extents.width + 10; x = modes_x - mode_extents.width; } cairo_move_to(cr, x, y); cairo_text_path(cr, mode_buf); cairo_set_source_rgb(cr, 0, 0, 0); cairo_stroke_preserve(cr); cairo_set_source_rgb(cr, 1, 1, 1); cairo_fill(cr); } } static int create_test_buffer(drm_intel_bufmgr *bufmgr, int width, int height, int *stride_out, drm_intel_bo **bo_out) { drm_intel_bo *bo; int ret, stride; bo = allocate_buffer(bufmgr, width, height, &stride); if (!bo) { fprintf(stderr, "failed to alloc buffer: %s\n", strerror(errno)); return -1; } ret = drm_intel_gem_bo_map_gtt(bo); if (ret) { fprintf(stderr, "failed to GTT map buffer: %s\n", strerror(errno)); return -1; } *bo_out = bo; *stride_out = stride; return 0; } static void set_mode(struct connector *c) { drm_intel_bufmgr *bufmgr; drm_intel_bo *bo; unsigned int fb_id; int ret, width, height, stride; cairo_surface_t *surface; cairo_t *cr; char buf[128]; width = 0; height = 0; connector_find_preferred_mode(c); if (!c->mode_valid) return; width += c->mode.hdisplay; if (height < c->mode.vdisplay) height = c->mode.vdisplay; bufmgr = drm_intel_bufmgr_gem_init(fd, 2<<20); if (!bufmgr) { fprintf(stderr, "failed to init bufmgr: %s\n", strerror(errno)); return; } if (create_test_buffer(bufmgr, width, height, &stride, &bo)) return; surface = cairo_image_surface_create_for_data(bo->virtual, CAIRO_FORMAT_ARGB32, width, height, stride); cr = cairo_create(surface); cairo_surface_destroy(surface); cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE); /* Paint corner markers */ snprintf(buf, sizeof buf, "(%d, %d)", 0, 0); paint_marker(cr, 0, 0, buf, bottomright); snprintf(buf, sizeof buf, "(%d, %d)", width, 0); paint_marker(cr, width, 0, buf, bottomleft); snprintf(buf, sizeof buf, "(%d, %d)", 0, height); paint_marker(cr, 0, height, buf, topright); snprintf(buf, sizeof buf, "(%d, %d)", width, height); paint_marker(cr, width, height, buf, topleft); /* Paint output info */ paint_output_info(cr, c, width, height); cairo_destroy(cr); drm_intel_gem_bo_unmap_gtt(bo); ret = drmModeAddFB(fd, width, height, 32, 32, stride, bo->handle, &fb_id); if (ret) { fprintf(stderr, "failed to add fb: %s\n", strerror(errno)); return; } if (!c->mode_valid) return; ret = drmModeSetCrtc(fd, c->crtc, fb_id, 0, 0, &c->id, 1, &c->mode); if (ret) { fprintf(stderr, "failed to set mode: %s\n", strerror(errno)); return; } drmModeFreeEncoder(c->encoder); drmModeFreeConnector(c->connector); } /* * Re-probe outputs and light up as many as possible. * * On Intel, we have two CRTCs that we can drive independently with * different timings and scanout buffers. * * Each connector has a corresponding encoder, except in the SDVO case * where an encoder may have multiple connectors. */ static void update_display(void) { struct connector *connectors; int c; resources = drmModeGetResources(fd); if (!resources) { fprintf(stderr, "drmModeGetResources failed: %s\n", strerror(errno)); return; } connectors = calloc(resources->count_connectors, sizeof(struct connector)); if (!connectors) return; /* Find any connected displays */ for (c = 0; c < resources->count_connectors; c++) { connectors[c].id = resources->connectors[c]; set_mode(&connectors[c]); } drmModeFreeResources(resources); } extern char *optarg; extern int optind, opterr, optopt; static char optstr[] = "h"; static void usage(char *name) { fprintf(stderr, "usage: %s [-h]\n", name); exit(0); } static gboolean hotplug_event(GIOChannel *source, GIOCondition condition, gpointer data) { gchar buf[256]; gsize count; struct udev_device *dev; dev_t udev_devnum; struct stat s; const char *hotplug; g_io_channel_read(source, buf, 256, &count); dev = udev_monitor_receive_device(uevent_monitor); if (!dev) goto out; udev_devnum = udev_device_get_devnum(dev); fstat(fd, &s); hotplug = udev_device_get_property_value(dev, "HOTPLUG"); if (memcmp(&s.st_rdev, &udev_devnum, sizeof(dev_t)) == 0 && hotplug && atoi(hotplug) == 1) update_display(); udev_device_unref(dev); out: return TRUE; } static gboolean input_event(GIOChannel *source, GIOCondition condition, gpointer data) { gchar buf[256]; gsize count; g_io_channel_read(source, buf, 255, &count); buf[count] = '\0'; if (buf[0] == 'q' && (count == 1 || buf[1] == '\n')) exit(0); return TRUE; } int main(int argc, char **argv) { int c; int encoders = 0, connectors = 0, crtcs = 0, framebuffers = 0; char *modules[] = { "i915" }; int i; struct udev *u; int ret = 0; GIOChannel *udevchannel, *stdinchannel; GMainLoop *mainloop; opterr = 0; while ((c = getopt(argc, argv, optstr)) != -1) { switch (c) { default: fprintf(stderr, "unknown option %c\n", c); /* fall through */ case 'h': usage(argv[0]); break; } } if (argc == 1) encoders = connectors = crtcs = modes = framebuffers = 1; for (i = 0; i < ARRAY_SIZE(modules); i++) { fd = drmOpen(modules[i], NULL); if (fd < 0) printf("failed to load %s driver.\n", modules[i]); else break; } if (i == ARRAY_SIZE(modules)) { fprintf(stderr, "failed to load any modules, aborting.\n"); ret = -1; goto out; } u = udev_new(); if (!u) { fprintf(stderr, "failed to create udev object\n"); ret = -1; goto out_close; } uevent_monitor = udev_monitor_new_from_netlink(u, "udev"); if (!uevent_monitor) { fprintf(stderr, "failed to create udev event monitor\n"); ret = -1; goto out_udev_unref; } ret = udev_monitor_filter_add_match_subsystem_devtype(uevent_monitor, "drm", "drm_minor"); if (ret < 0) { fprintf(stderr, "failed to filter for drm events\n"); goto out_udev_mon_unref; } ret = udev_monitor_enable_receiving(uevent_monitor); if (ret < 0) { fprintf(stderr, "failed to enable udev event reception\n"); goto out_udev_mon_unref; } mainloop = g_main_loop_new(NULL, FALSE); if (!mainloop) { fprintf(stderr, "failed to create glib mainloop\n"); ret = -1; goto out_mainloop_unref; } udevchannel = g_io_channel_unix_new(udev_monitor_get_fd(uevent_monitor)); if (!udevchannel) { fprintf(stderr, "failed to create udev GIO channel\n"); goto out_mainloop_unref; } ret = g_io_add_watch(udevchannel, G_IO_IN | G_IO_ERR, hotplug_event, u); if (ret < 0) { fprintf(stderr, "failed to add watch on udev GIO channel\n"); goto out_udev_off; } stdinchannel = g_io_channel_unix_new(0); if (!stdinchannel) { fprintf(stderr, "failed to create stdin GIO channel\n"); goto out_udev_off; } ret = g_io_add_watch(stdinchannel, G_IO_IN | G_IO_ERR, input_event, NULL); if (ret < 0) { fprintf(stderr, "failed to add watch on stdin GIO channel\n"); goto out_stdio_off; } update_display(); g_main_loop_run(mainloop); out_stdio_off: g_io_channel_shutdown(stdinchannel, TRUE, NULL); out_udev_off: g_io_channel_shutdown(udevchannel, TRUE, NULL); out_mainloop_unref: g_main_loop_unref(mainloop); out_udev_mon_unref: udev_monitor_unref(uevent_monitor); out_udev_unref: udev_unref(u); out_close: drmClose(fd); out: return ret; }