// SPDX-License-Identifier: MIT /* * Copyright (C) 2013-2017 Oracle Corporation * This file is based on ast_mode.c * Copyright 2012 Red Hat Inc. * Parts based on xf86-video-ast * Copyright (c) 2005 ASPEED Technology Inc. * Authors: Dave Airlie * Michael Thayer */ #include #include #include #include #include #include #include #include #include #include #include "hgsmi_channels.h" #include "vbox_drv.h" #include "vboxvideo.h" /* * Set a graphics mode. Poke any required values into registers, do an HGSMI * mode set and tell the host we support advanced graphics functions. */ static void vbox_do_modeset(struct drm_crtc *crtc) { struct drm_framebuffer *fb = crtc->primary->state->fb; struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox; int width, height, bpp, pitch; u16 flags; s32 x_offset, y_offset; vbox = to_vbox_dev(crtc->dev); width = vbox_crtc->width ? vbox_crtc->width : 640; height = vbox_crtc->height ? vbox_crtc->height : 480; bpp = fb ? fb->format->cpp[0] * 8 : 32; pitch = fb ? fb->pitches[0] : width * bpp / 8; x_offset = vbox->single_framebuffer ? vbox_crtc->x : vbox_crtc->x_hint; y_offset = vbox->single_framebuffer ? vbox_crtc->y : vbox_crtc->y_hint; /* * This is the old way of setting graphics modes. It assumed one screen * and a frame-buffer at the start of video RAM. On older versions of * VirtualBox, certain parts of the code still assume that the first * screen is programmed this way, so try to fake it. */ if (vbox_crtc->crtc_id == 0 && fb && vbox_crtc->fb_offset / pitch < 0xffff - crtc->y && vbox_crtc->fb_offset % (bpp / 8) == 0) { vbox_write_ioport(VBE_DISPI_INDEX_XRES, width); vbox_write_ioport(VBE_DISPI_INDEX_YRES, height); vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp); vbox_write_ioport(VBE_DISPI_INDEX_BPP, bpp); vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED); vbox_write_ioport(VBE_DISPI_INDEX_X_OFFSET, vbox_crtc->fb_offset % pitch / bpp * 8 + vbox_crtc->x); vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET, vbox_crtc->fb_offset / pitch + vbox_crtc->y); } flags = VBVA_SCREEN_F_ACTIVE; flags |= (fb && crtc->state->enable) ? 0 : VBVA_SCREEN_F_BLANK; flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0; hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id, x_offset, y_offset, vbox_crtc->x * bpp / 8 + vbox_crtc->y * pitch, pitch, width, height, bpp, flags); } static int vbox_set_view(struct drm_crtc *crtc) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox = to_vbox_dev(crtc->dev); struct vbva_infoview *p; /* * Tell the host about the view. This design originally targeted the * Windows XP driver architecture and assumed that each screen would * have a dedicated frame buffer with the command buffer following it, * the whole being a "view". The host works out which screen a command * buffer belongs to by checking whether it is in the first view, then * whether it is in the second and so on. The first match wins. We * cheat around this by making the first view be the managed memory * plus the first command buffer, the second the same plus the second * buffer and so on. */ p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_VIEW); if (!p) return -ENOMEM; p->view_index = vbox_crtc->crtc_id; p->view_offset = vbox_crtc->fb_offset; p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset + vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE; p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset; hgsmi_buffer_submit(vbox->guest_pool, p); hgsmi_buffer_free(vbox->guest_pool, p); return 0; } /* * Try to map the layout of virtual screens to the range of the input device. * Return true if we need to re-set the crtc modes due to screen offset * changes. */ static bool vbox_set_up_input_mapping(struct vbox_private *vbox) { struct drm_crtc *crtci; struct drm_connector *connectori; struct drm_framebuffer *fb, *fb1 = NULL; bool single_framebuffer = true; bool old_single_framebuffer = vbox->single_framebuffer; u16 width = 0, height = 0; /* * Are we using an X.Org-style single large frame-buffer for all crtcs? * If so then screen layout can be deduced from the crtc offsets. * Same fall-back if this is the fbdev frame-buffer. */ list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { fb = crtci->primary->state->fb; if (!fb) continue; if (!fb1) { fb1 = fb; if (fb1 == vbox->ddev.fb_helper->fb) break; } else if (fb != fb1) { single_framebuffer = false; } } if (!fb1) return false; if (single_framebuffer) { vbox->single_framebuffer = true; vbox->input_mapping_width = fb1->width; vbox->input_mapping_height = fb1->height; return old_single_framebuffer != vbox->single_framebuffer; } /* Otherwise calculate the total span of all screens. */ list_for_each_entry(connectori, &vbox->ddev.mode_config.connector_list, head) { struct vbox_connector *vbox_connector = to_vbox_connector(connectori); struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc; width = max_t(u16, width, vbox_crtc->x_hint + vbox_connector->mode_hint.width); height = max_t(u16, height, vbox_crtc->y_hint + vbox_connector->mode_hint.height); } vbox->single_framebuffer = false; vbox->input_mapping_width = width; vbox->input_mapping_height = height; return old_single_framebuffer != vbox->single_framebuffer; } static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc, struct drm_framebuffer *fb, int x, int y) { struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]); struct vbox_private *vbox = to_vbox_dev(crtc->dev); struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state); mutex_lock(&vbox->hw_mutex); if (crtc->state->enable) { vbox_crtc->width = crtc->state->mode.hdisplay; vbox_crtc->height = crtc->state->mode.vdisplay; } vbox_crtc->x = x; vbox_crtc->y = y; vbox_crtc->fb_offset = drm_gem_vram_offset(gbo); /* vbox_do_modeset() checks vbox->single_framebuffer so update it now */ if (needs_modeset && vbox_set_up_input_mapping(vbox)) { struct drm_crtc *crtci; list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (crtci == crtc) continue; vbox_do_modeset(crtci); } } vbox_set_view(crtc); vbox_do_modeset(crtc); if (needs_modeset) hgsmi_update_input_mapping(vbox->guest_pool, 0, 0, vbox->input_mapping_width, vbox->input_mapping_height); mutex_unlock(&vbox->hw_mutex); } static void vbox_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state) { } static void vbox_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state) { } static void vbox_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *state) { } static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = { .atomic_enable = vbox_crtc_atomic_enable, .atomic_disable = vbox_crtc_atomic_disable, .atomic_flush = vbox_crtc_atomic_flush, }; static void vbox_crtc_destroy(struct drm_crtc *crtc) { drm_crtc_cleanup(crtc); kfree(crtc); } static const struct drm_crtc_funcs vbox_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, /* .gamma_set = vbox_crtc_gamma_set, */ .destroy = vbox_crtc_destroy, .reset = drm_atomic_helper_crtc_reset, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, }; static int vbox_primary_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc_state *crtc_state = NULL; if (new_state->crtc) { crtc_state = drm_atomic_get_existing_crtc_state(state, new_state->crtc); if (WARN_ON(!crtc_state)) return -EINVAL; } return drm_atomic_helper_check_plane_state(new_state, crtc_state, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, false, true); } static void vbox_primary_atomic_update(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc *crtc = new_state->crtc; struct drm_framebuffer *fb = new_state->fb; struct vbox_private *vbox = to_vbox_dev(fb->dev); struct drm_mode_rect *clips; uint32_t num_clips, i; vbox_crtc_set_base_and_mode(crtc, fb, new_state->src_x >> 16, new_state->src_y >> 16); /* Send information about dirty rectangles to VBVA. */ clips = drm_plane_get_damage_clips(new_state); num_clips = drm_plane_get_damage_clips_count(new_state); if (!num_clips) return; mutex_lock(&vbox->hw_mutex); for (i = 0; i < num_clips; ++i, ++clips) { struct vbva_cmd_hdr cmd_hdr; unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id; cmd_hdr.x = (s16)clips->x1; cmd_hdr.y = (s16)clips->y1; cmd_hdr.w = (u16)clips->x2 - clips->x1; cmd_hdr.h = (u16)clips->y2 - clips->y1; if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id], vbox->guest_pool)) continue; vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool, &cmd_hdr, sizeof(cmd_hdr)); vbva_buffer_end_update(&vbox->vbva_info[crtc_id]); } mutex_unlock(&vbox->hw_mutex); } static void vbox_primary_atomic_disable(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); struct drm_crtc *crtc = old_state->crtc; /* vbox_do_modeset checks plane->state->fb and will disable if NULL */ vbox_crtc_set_base_and_mode(crtc, old_state->fb, old_state->src_x >> 16, old_state->src_y >> 16); } static int vbox_cursor_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc_state *crtc_state = NULL; u32 width = new_state->crtc_w; u32 height = new_state->crtc_h; int ret; if (new_state->crtc) { crtc_state = drm_atomic_get_existing_crtc_state(state, new_state->crtc); if (WARN_ON(!crtc_state)) return -EINVAL; } ret = drm_atomic_helper_check_plane_state(new_state, crtc_state, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, true, true); if (ret) return ret; if (!new_state->fb) return 0; if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT || width == 0 || height == 0) return -EINVAL; return 0; } /* * Copy the ARGB image and generate the mask, which is needed in case the host * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set * if the corresponding alpha value in the ARGB image is greater than 0xF0. */ static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height, size_t mask_size) { size_t line_size = (width + 7) / 8; u32 i, j; memcpy(dst + mask_size, src, width * height * 4); for (i = 0; i < height; ++i) for (j = 0; j < width; ++j) if (((u32 *)src)[i * width + j] > 0xf0000000) dst[i * line_size + j / 8] |= (0x80 >> (j % 8)); } static void vbox_cursor_atomic_update(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct vbox_private *vbox = container_of(plane->dev, struct vbox_private, ddev); struct vbox_crtc *vbox_crtc = to_vbox_crtc(new_state->crtc); struct drm_framebuffer *fb = new_state->fb; u32 width = new_state->crtc_w; u32 height = new_state->crtc_h; struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(new_state); struct dma_buf_map map = shadow_plane_state->data[0]; u8 *src = map.vaddr; /* TODO: Use mapping abstraction properly */ size_t data_size, mask_size; u32 flags; /* * VirtualBox uses the host windowing system to draw the cursor so * moves are a no-op, we only need to upload new cursor sprites. */ if (fb == old_state->fb) return; mutex_lock(&vbox->hw_mutex); vbox_crtc->cursor_enabled = true; /* * The mask must be calculated based on the alpha * channel, one bit per ARGB word, and must be 32-bit * padded. */ mask_size = ((width + 7) / 8 * height + 3) & ~3; data_size = width * height * 4 + mask_size; copy_cursor_image(src, vbox->cursor_data, width, height, mask_size); flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA; hgsmi_update_pointer_shape(vbox->guest_pool, flags, min_t(u32, max(fb->hot_x, 0), width), min_t(u32, max(fb->hot_y, 0), height), width, height, vbox->cursor_data, data_size); mutex_unlock(&vbox->hw_mutex); } static void vbox_cursor_atomic_disable(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); struct vbox_private *vbox = container_of(plane->dev, struct vbox_private, ddev); struct vbox_crtc *vbox_crtc = to_vbox_crtc(old_state->crtc); bool cursor_enabled = false; struct drm_crtc *crtci; mutex_lock(&vbox->hw_mutex); vbox_crtc->cursor_enabled = false; list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (to_vbox_crtc(crtci)->cursor_enabled) cursor_enabled = true; } if (!cursor_enabled) hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0, 0, 0, NULL, 0); mutex_unlock(&vbox->hw_mutex); } static const u32 vbox_cursor_plane_formats[] = { DRM_FORMAT_ARGB8888, }; static const struct drm_plane_helper_funcs vbox_cursor_helper_funcs = { .atomic_check = vbox_cursor_atomic_check, .atomic_update = vbox_cursor_atomic_update, .atomic_disable = vbox_cursor_atomic_disable, DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, }; static const struct drm_plane_funcs vbox_cursor_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = drm_primary_helper_destroy, DRM_GEM_SHADOW_PLANE_FUNCS, }; static const u32 vbox_primary_plane_formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, }; static const struct drm_plane_helper_funcs vbox_primary_helper_funcs = { .atomic_check = vbox_primary_atomic_check, .atomic_update = vbox_primary_atomic_update, .atomic_disable = vbox_primary_atomic_disable, DRM_GEM_VRAM_PLANE_HELPER_FUNCS, }; static const struct drm_plane_funcs vbox_primary_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = drm_primary_helper_destroy, .reset = drm_atomic_helper_plane_reset, .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, }; static struct drm_plane *vbox_create_plane(struct vbox_private *vbox, unsigned int possible_crtcs, enum drm_plane_type type) { const struct drm_plane_helper_funcs *helper_funcs = NULL; const struct drm_plane_funcs *funcs; struct drm_plane *plane; const u32 *formats; int num_formats; int err; if (type == DRM_PLANE_TYPE_PRIMARY) { funcs = &vbox_primary_plane_funcs; formats = vbox_primary_plane_formats; helper_funcs = &vbox_primary_helper_funcs; num_formats = ARRAY_SIZE(vbox_primary_plane_formats); } else if (type == DRM_PLANE_TYPE_CURSOR) { funcs = &vbox_cursor_plane_funcs; formats = vbox_cursor_plane_formats; helper_funcs = &vbox_cursor_helper_funcs; num_formats = ARRAY_SIZE(vbox_cursor_plane_formats); } else { return ERR_PTR(-EINVAL); } plane = kzalloc(sizeof(*plane), GFP_KERNEL); if (!plane) return ERR_PTR(-ENOMEM); err = drm_universal_plane_init(&vbox->ddev, plane, possible_crtcs, funcs, formats, num_formats, NULL, type, NULL); if (err) goto free_plane; drm_plane_helper_add(plane, helper_funcs); return plane; free_plane: kfree(plane); return ERR_PTR(-EINVAL); } static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i) { struct vbox_private *vbox = container_of(dev, struct vbox_private, ddev); struct drm_plane *cursor = NULL; struct vbox_crtc *vbox_crtc; struct drm_plane *primary; u32 caps = 0; int ret; ret = hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps); if (ret) return ERR_PTR(ret); vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL); if (!vbox_crtc) return ERR_PTR(-ENOMEM); primary = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_PRIMARY); if (IS_ERR(primary)) { ret = PTR_ERR(primary); goto free_mem; } if ((caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) { cursor = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_CURSOR); if (IS_ERR(cursor)) { ret = PTR_ERR(cursor); goto clean_primary; } } else { DRM_WARN("VirtualBox host is too old, no cursor support\n"); } vbox_crtc->crtc_id = i; ret = drm_crtc_init_with_planes(dev, &vbox_crtc->base, primary, cursor, &vbox_crtc_funcs, NULL); if (ret) goto clean_cursor; drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256); drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs); return vbox_crtc; clean_cursor: if (cursor) { drm_plane_cleanup(cursor); kfree(cursor); } clean_primary: drm_plane_cleanup(primary); kfree(primary); free_mem: kfree(vbox_crtc); return ERR_PTR(ret); } static void vbox_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); kfree(encoder); } static const struct drm_encoder_funcs vbox_enc_funcs = { .destroy = vbox_encoder_destroy, }; static struct drm_encoder *vbox_encoder_init(struct drm_device *dev, unsigned int i) { struct vbox_encoder *vbox_encoder; vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL); if (!vbox_encoder) return NULL; drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs, DRM_MODE_ENCODER_DAC, NULL); vbox_encoder->base.possible_crtcs = 1 << i; return &vbox_encoder->base; } /* * Generate EDID data with a mode-unique serial number for the virtual * monitor to try to persuade Unity that different modes correspond to * different monitors and it should not try to force the same resolution on * them. */ static void vbox_set_edid(struct drm_connector *connector, int width, int height) { enum { EDID_SIZE = 128 }; unsigned char edid[EDID_SIZE] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */ 0x58, 0x58, /* manufacturer (VBX) */ 0x00, 0x00, /* product code */ 0x00, 0x00, 0x00, 0x00, /* serial number goes here */ 0x01, /* week of manufacture */ 0x00, /* year of manufacture */ 0x01, 0x03, /* EDID version */ 0x80, /* capabilities - digital */ 0x00, /* horiz. res in cm, zero for projectors */ 0x00, /* vert. res in cm */ 0x78, /* display gamma (120 == 2.2). */ 0xEE, /* features (standby, suspend, off, RGB, std */ /* colour space, preferred timing mode) */ 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54, /* chromaticity for standard colour space. */ 0x00, 0x00, 0x00, /* no default timings */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, /* no standard timings */ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02, 0x02, 0x02, /* descriptor block 1 goes below */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* descriptor block 2, monitor ranges */ 0x00, 0x00, 0x00, 0xFD, 0x00, 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */ 0x20, /* descriptor block 3, monitor name */ 0x00, 0x00, 0x00, 0xFC, 0x00, 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', '\n', /* descriptor block 4: dummy data */ 0x00, 0x00, 0x00, 0x10, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, /* number of extensions */ 0x00 /* checksum goes here */ }; int clock = (width + 6) * (height + 6) * 60 / 10000; unsigned int i, sum = 0; edid[12] = width & 0xff; edid[13] = width >> 8; edid[14] = height & 0xff; edid[15] = height >> 8; edid[54] = clock & 0xff; edid[55] = clock >> 8; edid[56] = width & 0xff; edid[58] = (width >> 4) & 0xf0; edid[59] = height & 0xff; edid[61] = (height >> 4) & 0xf0; for (i = 0; i < EDID_SIZE - 1; ++i) sum += edid[i]; edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF; drm_connector_update_edid_property(connector, (struct edid *)edid); } static int vbox_get_modes(struct drm_connector *connector) { struct vbox_connector *vbox_connector = NULL; struct drm_display_mode *mode = NULL; struct vbox_private *vbox = NULL; unsigned int num_modes = 0; int preferred_width, preferred_height; vbox_connector = to_vbox_connector(connector); vbox = to_vbox_dev(connector->dev); hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) + HOST_FLAGS_OFFSET); if (vbox_connector->vbox_crtc->crtc_id == 0) vbox_report_caps(vbox); num_modes = drm_add_modes_noedid(connector, 2560, 1600); preferred_width = vbox_connector->mode_hint.width ? vbox_connector->mode_hint.width : 1024; preferred_height = vbox_connector->mode_hint.height ? vbox_connector->mode_hint.height : 768; mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height, 60, false, false, false); if (mode) { mode->type |= DRM_MODE_TYPE_PREFERRED; drm_mode_probed_add(connector, mode); ++num_modes; } vbox_set_edid(connector, preferred_width, preferred_height); if (vbox_connector->vbox_crtc->x_hint != -1) drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_x_property, vbox_connector->vbox_crtc->x_hint); else drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_x_property, 0); if (vbox_connector->vbox_crtc->y_hint != -1) drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_y_property, vbox_connector->vbox_crtc->y_hint); else drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_y_property, 0); return num_modes; } static void vbox_connector_destroy(struct drm_connector *connector) { drm_connector_unregister(connector); drm_connector_cleanup(connector); kfree(connector); } static enum drm_connector_status vbox_connector_detect(struct drm_connector *connector, bool force) { struct vbox_connector *vbox_connector; vbox_connector = to_vbox_connector(connector); return vbox_connector->mode_hint.disconnected ? connector_status_disconnected : connector_status_connected; } static int vbox_fill_modes(struct drm_connector *connector, u32 max_x, u32 max_y) { struct vbox_connector *vbox_connector; struct drm_device *dev; struct drm_display_mode *mode, *iterator; vbox_connector = to_vbox_connector(connector); dev = vbox_connector->base.dev; list_for_each_entry_safe(mode, iterator, &connector->modes, head) { list_del(&mode->head); drm_mode_destroy(dev, mode); } return drm_helper_probe_single_connector_modes(connector, max_x, max_y); } static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = { .get_modes = vbox_get_modes, }; static const struct drm_connector_funcs vbox_connector_funcs = { .detect = vbox_connector_detect, .fill_modes = vbox_fill_modes, .destroy = vbox_connector_destroy, .reset = drm_atomic_helper_connector_reset, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; static int vbox_connector_init(struct drm_device *dev, struct vbox_crtc *vbox_crtc, struct drm_encoder *encoder) { struct vbox_connector *vbox_connector; struct drm_connector *connector; vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL); if (!vbox_connector) return -ENOMEM; connector = &vbox_connector->base; vbox_connector->vbox_crtc = vbox_crtc; drm_connector_init(dev, connector, &vbox_connector_funcs, DRM_MODE_CONNECTOR_VGA); drm_connector_helper_add(connector, &vbox_connector_helper_funcs); connector->interlace_allowed = 0; connector->doublescan_allowed = 0; drm_mode_create_suggested_offset_properties(dev); drm_object_attach_property(&connector->base, dev->mode_config.suggested_x_property, 0); drm_object_attach_property(&connector->base, dev->mode_config.suggested_y_property, 0); drm_connector_attach_encoder(connector, encoder); return 0; } static const struct drm_mode_config_funcs vbox_mode_funcs = { .fb_create = drm_gem_fb_create_with_dirty, .mode_valid = drm_vram_helper_mode_valid, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; int vbox_mode_init(struct vbox_private *vbox) { struct drm_device *dev = &vbox->ddev; struct drm_encoder *encoder; struct vbox_crtc *vbox_crtc; unsigned int i; int ret; drm_mode_config_init(dev); dev->mode_config.funcs = (void *)&vbox_mode_funcs; dev->mode_config.min_width = 0; dev->mode_config.min_height = 0; dev->mode_config.preferred_depth = 24; dev->mode_config.max_width = VBE_DISPI_MAX_XRES; dev->mode_config.max_height = VBE_DISPI_MAX_YRES; for (i = 0; i < vbox->num_crtcs; ++i) { vbox_crtc = vbox_crtc_init(dev, i); if (IS_ERR(vbox_crtc)) { ret = PTR_ERR(vbox_crtc); goto err_drm_mode_cleanup; } encoder = vbox_encoder_init(dev, i); if (!encoder) { ret = -ENOMEM; goto err_drm_mode_cleanup; } ret = vbox_connector_init(dev, vbox_crtc, encoder); if (ret) goto err_drm_mode_cleanup; } drm_mode_config_reset(dev); return 0; err_drm_mode_cleanup: drm_mode_config_cleanup(dev); return ret; } void vbox_mode_fini(struct vbox_private *vbox) { drm_mode_config_cleanup(&vbox->ddev); }