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1// SPDX-License-Identifier: MIT2/*3 * Copyright (C) 2013-2017 Oracle Corporation4 * This file is based on ast_mode.c5 * Copyright 2012 Red Hat Inc.6 * Parts based on xf86-video-ast7 * Copyright (c) 2005 ASPEED Technology Inc.8 * Authors: Dave Airlie <airlied@redhat.com>9 * Michael Thayer <michael.thayer@oracle.com,10 * Hans de Goede <hdegoede@redhat.com>11 */12 13#include <linux/iosys-map.h>14#include <linux/export.h>15 16#include <drm/drm_atomic.h>17#include <drm/drm_atomic_helper.h>18#include <drm/drm_edid.h>19#include <drm/drm_fb_helper.h>20#include <drm/drm_fourcc.h>21#include <drm/drm_framebuffer.h>22#include <drm/drm_gem_atomic_helper.h>23#include <drm/drm_gem_framebuffer_helper.h>24#include <drm/drm_plane_helper.h>25#include <drm/drm_probe_helper.h>26 27#include "hgsmi_channels.h"28#include "vbox_drv.h"29#include "vboxvideo.h"30 31/*32 * Set a graphics mode. Poke any required values into registers, do an HGSMI33 * mode set and tell the host we support advanced graphics functions.34 */35static void vbox_do_modeset(struct drm_crtc *crtc)36{37 struct drm_framebuffer *fb = crtc->primary->state->fb;38 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);39 struct vbox_private *vbox;40 int width, height, bpp, pitch;41 u16 flags;42 s32 x_offset, y_offset;43 44 vbox = to_vbox_dev(crtc->dev);45 width = vbox_crtc->width ? vbox_crtc->width : 640;46 height = vbox_crtc->height ? vbox_crtc->height : 480;47 bpp = fb ? fb->format->cpp[0] * 8 : 32;48 pitch = fb ? fb->pitches[0] : width * bpp / 8;49 x_offset = vbox->single_framebuffer ? vbox_crtc->x : vbox_crtc->x_hint;50 y_offset = vbox->single_framebuffer ? vbox_crtc->y : vbox_crtc->y_hint;51 52 /*53 * This is the old way of setting graphics modes. It assumed one screen54 * and a frame-buffer at the start of video RAM. On older versions of55 * VirtualBox, certain parts of the code still assume that the first56 * screen is programmed this way, so try to fake it.57 */58 if (vbox_crtc->crtc_id == 0 && fb &&59 vbox_crtc->fb_offset / pitch < 0xffff - crtc->y &&60 vbox_crtc->fb_offset % (bpp / 8) == 0) {61 vbox_write_ioport(VBE_DISPI_INDEX_XRES, width);62 vbox_write_ioport(VBE_DISPI_INDEX_YRES, height);63 vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp);64 vbox_write_ioport(VBE_DISPI_INDEX_BPP, bpp);65 vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);66 vbox_write_ioport(VBE_DISPI_INDEX_X_OFFSET,67 vbox_crtc->fb_offset % pitch / bpp * 8 + vbox_crtc->x);68 vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET,69 vbox_crtc->fb_offset / pitch + vbox_crtc->y);70 }71 72 flags = VBVA_SCREEN_F_ACTIVE;73 flags |= (fb && crtc->state->enable) ? 0 : VBVA_SCREEN_F_BLANK;74 flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0;75 hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id,76 x_offset, y_offset,77 vbox_crtc->x * bpp / 8 +78 vbox_crtc->y * pitch,79 pitch, width, height, bpp, flags);80}81 82static int vbox_set_view(struct drm_crtc *crtc)83{84 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);85 struct vbox_private *vbox = to_vbox_dev(crtc->dev);86 struct vbva_infoview *p;87 88 /*89 * Tell the host about the view. This design originally targeted the90 * Windows XP driver architecture and assumed that each screen would91 * have a dedicated frame buffer with the command buffer following it,92 * the whole being a "view". The host works out which screen a command93 * buffer belongs to by checking whether it is in the first view, then94 * whether it is in the second and so on. The first match wins. We95 * cheat around this by making the first view be the managed memory96 * plus the first command buffer, the second the same plus the second97 * buffer and so on.98 */99 p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p),100 HGSMI_CH_VBVA, VBVA_INFO_VIEW);101 if (!p)102 return -ENOMEM;103 104 p->view_index = vbox_crtc->crtc_id;105 p->view_offset = vbox_crtc->fb_offset;106 p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset +107 vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;108 p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset;109 110 hgsmi_buffer_submit(vbox->guest_pool, p);111 hgsmi_buffer_free(vbox->guest_pool, p);112 113 return 0;114}115 116/*117 * Try to map the layout of virtual screens to the range of the input device.118 * Return true if we need to re-set the crtc modes due to screen offset119 * changes.120 */121static bool vbox_set_up_input_mapping(struct vbox_private *vbox)122{123 struct drm_crtc *crtci;124 struct drm_connector *connectori;125 struct drm_framebuffer *fb, *fb1 = NULL;126 bool single_framebuffer = true;127 bool old_single_framebuffer = vbox->single_framebuffer;128 u16 width = 0, height = 0;129 130 /*131 * Are we using an X.Org-style single large frame-buffer for all crtcs?132 * If so then screen layout can be deduced from the crtc offsets.133 * Same fall-back if this is the fbdev frame-buffer.134 */135 list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {136 fb = crtci->primary->state->fb;137 if (!fb)138 continue;139 140 if (!fb1) {141 fb1 = fb;142 if (fb1 == vbox->ddev.fb_helper->fb)143 break;144 } else if (fb != fb1) {145 single_framebuffer = false;146 }147 }148 if (!fb1)149 return false;150 151 if (single_framebuffer) {152 vbox->single_framebuffer = true;153 vbox->input_mapping_width = fb1->width;154 vbox->input_mapping_height = fb1->height;155 return old_single_framebuffer != vbox->single_framebuffer;156 }157 /* Otherwise calculate the total span of all screens. */158 list_for_each_entry(connectori, &vbox->ddev.mode_config.connector_list,159 head) {160 struct vbox_connector *vbox_connector =161 to_vbox_connector(connectori);162 struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc;163 164 width = max_t(u16, width, vbox_crtc->x_hint +165 vbox_connector->mode_hint.width);166 height = max_t(u16, height, vbox_crtc->y_hint +167 vbox_connector->mode_hint.height);168 }169 170 vbox->single_framebuffer = false;171 vbox->input_mapping_width = width;172 vbox->input_mapping_height = height;173 174 return old_single_framebuffer != vbox->single_framebuffer;175}176 177static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,178 struct drm_framebuffer *fb,179 int x, int y)180{181 struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);182 struct vbox_private *vbox = to_vbox_dev(crtc->dev);183 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);184 bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);185 186 mutex_lock(&vbox->hw_mutex);187 188 if (crtc->state->enable) {189 vbox_crtc->width = crtc->state->mode.hdisplay;190 vbox_crtc->height = crtc->state->mode.vdisplay;191 }192 193 vbox_crtc->x = x;194 vbox_crtc->y = y;195 vbox_crtc->fb_offset = drm_gem_vram_offset(gbo);196 197 /* vbox_do_modeset() checks vbox->single_framebuffer so update it now */198 if (needs_modeset && vbox_set_up_input_mapping(vbox)) {199 struct drm_crtc *crtci;200 201 list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list,202 head) {203 if (crtci == crtc)204 continue;205 vbox_do_modeset(crtci);206 }207 }208 209 vbox_set_view(crtc);210 vbox_do_modeset(crtc);211 212 if (needs_modeset)213 hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,214 vbox->input_mapping_width,215 vbox->input_mapping_height);216 217 mutex_unlock(&vbox->hw_mutex);218}219 220static void vbox_crtc_atomic_enable(struct drm_crtc *crtc,221 struct drm_atomic_state *state)222{223}224 225static void vbox_crtc_atomic_disable(struct drm_crtc *crtc,226 struct drm_atomic_state *state)227{228}229 230static void vbox_crtc_atomic_flush(struct drm_crtc *crtc,231 struct drm_atomic_state *state)232{233}234 235static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {236 .atomic_enable = vbox_crtc_atomic_enable,237 .atomic_disable = vbox_crtc_atomic_disable,238 .atomic_flush = vbox_crtc_atomic_flush,239};240 241static void vbox_crtc_destroy(struct drm_crtc *crtc)242{243 drm_crtc_cleanup(crtc);244 kfree(crtc);245}246 247static const struct drm_crtc_funcs vbox_crtc_funcs = {248 .set_config = drm_atomic_helper_set_config,249 .page_flip = drm_atomic_helper_page_flip,250 /* .gamma_set = vbox_crtc_gamma_set, */251 .destroy = vbox_crtc_destroy,252 .reset = drm_atomic_helper_crtc_reset,253 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,254 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,255};256 257static int vbox_primary_atomic_check(struct drm_plane *plane,258 struct drm_atomic_state *state)259{260 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,261 plane);262 struct drm_crtc_state *crtc_state = NULL;263 264 if (new_state->crtc) {265 crtc_state = drm_atomic_get_existing_crtc_state(state,266 new_state->crtc);267 if (WARN_ON(!crtc_state))268 return -EINVAL;269 }270 271 return drm_atomic_helper_check_plane_state(new_state, crtc_state,272 DRM_PLANE_NO_SCALING,273 DRM_PLANE_NO_SCALING,274 false, true);275}276 277static void vbox_primary_atomic_update(struct drm_plane *plane,278 struct drm_atomic_state *state)279{280 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,281 plane);282 struct drm_crtc *crtc = new_state->crtc;283 struct drm_framebuffer *fb = new_state->fb;284 struct vbox_private *vbox = to_vbox_dev(fb->dev);285 struct drm_mode_rect *clips;286 uint32_t num_clips, i;287 288 vbox_crtc_set_base_and_mode(crtc, fb,289 new_state->src_x >> 16,290 new_state->src_y >> 16);291 292 /* Send information about dirty rectangles to VBVA. */293 294 clips = drm_plane_get_damage_clips(new_state);295 num_clips = drm_plane_get_damage_clips_count(new_state);296 297 if (!num_clips)298 return;299 300 mutex_lock(&vbox->hw_mutex);301 302 for (i = 0; i < num_clips; ++i, ++clips) {303 struct vbva_cmd_hdr cmd_hdr;304 unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;305 306 cmd_hdr.x = (s16)clips->x1;307 cmd_hdr.y = (s16)clips->y1;308 cmd_hdr.w = (u16)clips->x2 - clips->x1;309 cmd_hdr.h = (u16)clips->y2 - clips->y1;310 311 if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],312 vbox->guest_pool))313 continue;314 315 vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,316 &cmd_hdr, sizeof(cmd_hdr));317 vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);318 }319 320 mutex_unlock(&vbox->hw_mutex);321}322 323static void vbox_primary_atomic_disable(struct drm_plane *plane,324 struct drm_atomic_state *state)325{326 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,327 plane);328 struct drm_crtc *crtc = old_state->crtc;329 330 /* vbox_do_modeset checks plane->state->fb and will disable if NULL */331 vbox_crtc_set_base_and_mode(crtc, old_state->fb,332 old_state->src_x >> 16,333 old_state->src_y >> 16);334}335 336static int vbox_cursor_atomic_check(struct drm_plane *plane,337 struct drm_atomic_state *state)338{339 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,340 plane);341 struct drm_crtc_state *crtc_state = NULL;342 u32 width = new_state->crtc_w;343 u32 height = new_state->crtc_h;344 int ret;345 346 if (new_state->crtc) {347 crtc_state = drm_atomic_get_existing_crtc_state(state,348 new_state->crtc);349 if (WARN_ON(!crtc_state))350 return -EINVAL;351 }352 353 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,354 DRM_PLANE_NO_SCALING,355 DRM_PLANE_NO_SCALING,356 true, true);357 if (ret)358 return ret;359 360 if (!new_state->fb)361 return 0;362 363 if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT ||364 width == 0 || height == 0)365 return -EINVAL;366 367 return 0;368}369 370/*371 * Copy the ARGB image and generate the mask, which is needed in case the host372 * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set373 * if the corresponding alpha value in the ARGB image is greater than 0xF0.374 */375static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height,376 size_t mask_size)377{378 size_t line_size = (width + 7) / 8;379 u32 i, j;380 381 memcpy(dst + mask_size, src, width * height * 4);382 for (i = 0; i < height; ++i)383 for (j = 0; j < width; ++j)384 if (((u32 *)src)[i * width + j] > 0xf0000000)385 dst[i * line_size + j / 8] |= (0x80 >> (j % 8));386}387 388static void vbox_cursor_atomic_update(struct drm_plane *plane,389 struct drm_atomic_state *state)390{391 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,392 plane);393 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,394 plane);395 struct vbox_private *vbox =396 container_of(plane->dev, struct vbox_private, ddev);397 struct vbox_crtc *vbox_crtc = to_vbox_crtc(new_state->crtc);398 struct drm_framebuffer *fb = new_state->fb;399 u32 width = new_state->crtc_w;400 u32 height = new_state->crtc_h;401 struct drm_shadow_plane_state *shadow_plane_state =402 to_drm_shadow_plane_state(new_state);403 struct iosys_map map = shadow_plane_state->data[0];404 u8 *src = map.vaddr; /* TODO: Use mapping abstraction properly */405 size_t data_size, mask_size;406 u32 flags;407 408 /*409 * VirtualBox uses the host windowing system to draw the cursor so410 * moves are a no-op, we only need to upload new cursor sprites.411 */412 if (fb == old_state->fb)413 return;414 415 mutex_lock(&vbox->hw_mutex);416 417 vbox_crtc->cursor_enabled = true;418 419 /*420 * The mask must be calculated based on the alpha421 * channel, one bit per ARGB word, and must be 32-bit422 * padded.423 */424 mask_size = ((width + 7) / 8 * height + 3) & ~3;425 data_size = width * height * 4 + mask_size;426 427 copy_cursor_image(src, vbox->cursor_data, width, height, mask_size);428 429 flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE |430 VBOX_MOUSE_POINTER_ALPHA;431 hgsmi_update_pointer_shape(vbox->guest_pool, flags,432 min_t(u32, max(new_state->hotspot_x, 0), width),433 min_t(u32, max(new_state->hotspot_y, 0), height),434 width, height, vbox->cursor_data, data_size);435 436 mutex_unlock(&vbox->hw_mutex);437}438 439static void vbox_cursor_atomic_disable(struct drm_plane *plane,440 struct drm_atomic_state *state)441{442 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,443 plane);444 struct vbox_private *vbox =445 container_of(plane->dev, struct vbox_private, ddev);446 struct vbox_crtc *vbox_crtc = to_vbox_crtc(old_state->crtc);447 bool cursor_enabled = false;448 struct drm_crtc *crtci;449 450 mutex_lock(&vbox->hw_mutex);451 452 vbox_crtc->cursor_enabled = false;453 454 list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {455 if (to_vbox_crtc(crtci)->cursor_enabled)456 cursor_enabled = true;457 }458 459 if (!cursor_enabled)460 hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0,461 0, 0, NULL, 0);462 463 mutex_unlock(&vbox->hw_mutex);464}465 466static const u32 vbox_cursor_plane_formats[] = {467 DRM_FORMAT_ARGB8888,468};469 470static const struct drm_plane_helper_funcs vbox_cursor_helper_funcs = {471 .atomic_check = vbox_cursor_atomic_check,472 .atomic_update = vbox_cursor_atomic_update,473 .atomic_disable = vbox_cursor_atomic_disable,474 DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,475};476 477static const struct drm_plane_funcs vbox_cursor_plane_funcs = {478 .update_plane = drm_atomic_helper_update_plane,479 .disable_plane = drm_atomic_helper_disable_plane,480 .destroy = drm_plane_helper_destroy,481 DRM_GEM_SHADOW_PLANE_FUNCS,482};483 484static const u32 vbox_primary_plane_formats[] = {485 DRM_FORMAT_XRGB8888,486 DRM_FORMAT_ARGB8888,487};488 489static const struct drm_plane_helper_funcs vbox_primary_helper_funcs = {490 .atomic_check = vbox_primary_atomic_check,491 .atomic_update = vbox_primary_atomic_update,492 .atomic_disable = vbox_primary_atomic_disable,493 DRM_GEM_VRAM_PLANE_HELPER_FUNCS,494};495 496static const struct drm_plane_funcs vbox_primary_plane_funcs = {497 .update_plane = drm_atomic_helper_update_plane,498 .disable_plane = drm_atomic_helper_disable_plane,499 .destroy = drm_plane_helper_destroy,500 .reset = drm_atomic_helper_plane_reset,501 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,502 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,503};504 505static struct drm_plane *vbox_create_plane(struct vbox_private *vbox,506 unsigned int possible_crtcs,507 enum drm_plane_type type)508{509 const struct drm_plane_helper_funcs *helper_funcs = NULL;510 const struct drm_plane_funcs *funcs;511 struct drm_plane *plane;512 const u32 *formats;513 int num_formats;514 int err;515 516 if (type == DRM_PLANE_TYPE_PRIMARY) {517 funcs = &vbox_primary_plane_funcs;518 formats = vbox_primary_plane_formats;519 helper_funcs = &vbox_primary_helper_funcs;520 num_formats = ARRAY_SIZE(vbox_primary_plane_formats);521 } else if (type == DRM_PLANE_TYPE_CURSOR) {522 funcs = &vbox_cursor_plane_funcs;523 formats = vbox_cursor_plane_formats;524 helper_funcs = &vbox_cursor_helper_funcs;525 num_formats = ARRAY_SIZE(vbox_cursor_plane_formats);526 } else {527 return ERR_PTR(-EINVAL);528 }529 530 plane = kzalloc(sizeof(*plane), GFP_KERNEL);531 if (!plane)532 return ERR_PTR(-ENOMEM);533 534 err = drm_universal_plane_init(&vbox->ddev, plane, possible_crtcs,535 funcs, formats, num_formats,536 NULL, type, NULL);537 if (err)538 goto free_plane;539 540 drm_plane_helper_add(plane, helper_funcs);541 542 return plane;543 544free_plane:545 kfree(plane);546 return ERR_PTR(-EINVAL);547}548 549static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i)550{551 struct vbox_private *vbox =552 container_of(dev, struct vbox_private, ddev);553 struct drm_plane *cursor = NULL;554 struct vbox_crtc *vbox_crtc;555 struct drm_plane *primary;556 u32 caps = 0;557 int ret;558 559 ret = hgsmi_query_conf(vbox->guest_pool,560 VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);561 if (ret)562 return ERR_PTR(ret);563 564 vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL);565 if (!vbox_crtc)566 return ERR_PTR(-ENOMEM);567 568 primary = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_PRIMARY);569 if (IS_ERR(primary)) {570 ret = PTR_ERR(primary);571 goto free_mem;572 }573 574 if ((caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) {575 cursor = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_CURSOR);576 if (IS_ERR(cursor)) {577 ret = PTR_ERR(cursor);578 goto clean_primary;579 }580 } else {581 DRM_WARN("VirtualBox host is too old, no cursor support\n");582 }583 584 vbox_crtc->crtc_id = i;585 586 ret = drm_crtc_init_with_planes(dev, &vbox_crtc->base, primary, cursor,587 &vbox_crtc_funcs, NULL);588 if (ret)589 goto clean_cursor;590 591 drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);592 drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);593 594 return vbox_crtc;595 596clean_cursor:597 if (cursor) {598 drm_plane_cleanup(cursor);599 kfree(cursor);600 }601clean_primary:602 drm_plane_cleanup(primary);603 kfree(primary);604free_mem:605 kfree(vbox_crtc);606 return ERR_PTR(ret);607}608 609static void vbox_encoder_destroy(struct drm_encoder *encoder)610{611 drm_encoder_cleanup(encoder);612 kfree(encoder);613}614 615static const struct drm_encoder_funcs vbox_enc_funcs = {616 .destroy = vbox_encoder_destroy,617};618 619static struct drm_encoder *vbox_encoder_init(struct drm_device *dev,620 unsigned int i)621{622 struct vbox_encoder *vbox_encoder;623 624 vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL);625 if (!vbox_encoder)626 return NULL;627 628 drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,629 DRM_MODE_ENCODER_DAC, NULL);630 631 vbox_encoder->base.possible_crtcs = 1 << i;632 return &vbox_encoder->base;633}634 635/*636 * Generate EDID data with a mode-unique serial number for the virtual637 * monitor to try to persuade Unity that different modes correspond to638 * different monitors and it should not try to force the same resolution on639 * them.640 */641static void vbox_set_edid(struct drm_connector *connector, int width,642 int height)643{644 enum { EDID_SIZE = 128 };645 unsigned char edid[EDID_SIZE] = {646 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */647 0x58, 0x58, /* manufacturer (VBX) */648 0x00, 0x00, /* product code */649 0x00, 0x00, 0x00, 0x00, /* serial number goes here */650 0x01, /* week of manufacture */651 0x00, /* year of manufacture */652 0x01, 0x03, /* EDID version */653 0x80, /* capabilities - digital */654 0x00, /* horiz. res in cm, zero for projectors */655 0x00, /* vert. res in cm */656 0x78, /* display gamma (120 == 2.2). */657 0xEE, /* features (standby, suspend, off, RGB, std */658 /* colour space, preferred timing mode) */659 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,660 /* chromaticity for standard colour space. */661 0x00, 0x00, 0x00, /* no default timings */662 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,663 0x01, 0x01,664 0x01, 0x01, 0x01, 0x01, /* no standard timings */665 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02,666 0x02, 0x02,667 /* descriptor block 1 goes below */668 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,669 /* descriptor block 2, monitor ranges */670 0x00, 0x00, 0x00, 0xFD, 0x00,671 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20,672 0x20, 0x20,673 /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */674 0x20,675 /* descriptor block 3, monitor name */676 0x00, 0x00, 0x00, 0xFC, 0x00,677 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r',678 '\n',679 /* descriptor block 4: dummy data */680 0x00, 0x00, 0x00, 0x10, 0x00,681 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,682 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,683 0x20,684 0x00, /* number of extensions */685 0x00 /* checksum goes here */686 };687 int clock = (width + 6) * (height + 6) * 60 / 10000;688 unsigned int i, sum = 0;689 690 edid[12] = width & 0xff;691 edid[13] = width >> 8;692 edid[14] = height & 0xff;693 edid[15] = height >> 8;694 edid[54] = clock & 0xff;695 edid[55] = clock >> 8;696 edid[56] = width & 0xff;697 edid[58] = (width >> 4) & 0xf0;698 edid[59] = height & 0xff;699 edid[61] = (height >> 4) & 0xf0;700 for (i = 0; i < EDID_SIZE - 1; ++i)701 sum += edid[i];702 edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;703 drm_connector_update_edid_property(connector, (struct edid *)edid);704}705 706static int vbox_get_modes(struct drm_connector *connector)707{708 struct vbox_connector *vbox_connector = NULL;709 struct drm_display_mode *mode = NULL;710 struct vbox_private *vbox = NULL;711 unsigned int num_modes = 0;712 int preferred_width, preferred_height;713 714 vbox_connector = to_vbox_connector(connector);715 vbox = to_vbox_dev(connector->dev);716 717 hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +718 HOST_FLAGS_OFFSET);719 if (vbox_connector->vbox_crtc->crtc_id == 0)720 vbox_report_caps(vbox);721 722 num_modes = drm_add_modes_noedid(connector, 2560, 1600);723 preferred_width = vbox_connector->mode_hint.width ?724 vbox_connector->mode_hint.width : 1024;725 preferred_height = vbox_connector->mode_hint.height ?726 vbox_connector->mode_hint.height : 768;727 mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height,728 60, false, false, false);729 if (mode) {730 mode->type |= DRM_MODE_TYPE_PREFERRED;731 drm_mode_probed_add(connector, mode);732 ++num_modes;733 }734 vbox_set_edid(connector, preferred_width, preferred_height);735 736 if (vbox_connector->vbox_crtc->x_hint != -1)737 drm_object_property_set_value(&connector->base,738 vbox->ddev.mode_config.suggested_x_property,739 vbox_connector->vbox_crtc->x_hint);740 else741 drm_object_property_set_value(&connector->base,742 vbox->ddev.mode_config.suggested_x_property, 0);743 744 if (vbox_connector->vbox_crtc->y_hint != -1)745 drm_object_property_set_value(&connector->base,746 vbox->ddev.mode_config.suggested_y_property,747 vbox_connector->vbox_crtc->y_hint);748 else749 drm_object_property_set_value(&connector->base,750 vbox->ddev.mode_config.suggested_y_property, 0);751 752 return num_modes;753}754 755static void vbox_connector_destroy(struct drm_connector *connector)756{757 drm_connector_unregister(connector);758 drm_connector_cleanup(connector);759 kfree(connector);760}761 762static enum drm_connector_status763vbox_connector_detect(struct drm_connector *connector, bool force)764{765 struct vbox_connector *vbox_connector;766 767 vbox_connector = to_vbox_connector(connector);768 769 return vbox_connector->mode_hint.disconnected ?770 connector_status_disconnected : connector_status_connected;771}772 773static int vbox_fill_modes(struct drm_connector *connector, u32 max_x,774 u32 max_y)775{776 struct vbox_connector *vbox_connector;777 struct drm_device *dev;778 struct drm_display_mode *mode, *iterator;779 780 vbox_connector = to_vbox_connector(connector);781 dev = vbox_connector->base.dev;782 list_for_each_entry_safe(mode, iterator, &connector->modes, head) {783 list_del(&mode->head);784 drm_mode_destroy(dev, mode);785 }786 787 return drm_helper_probe_single_connector_modes(connector, max_x, max_y);788}789 790static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {791 .get_modes = vbox_get_modes,792};793 794static const struct drm_connector_funcs vbox_connector_funcs = {795 .detect = vbox_connector_detect,796 .fill_modes = vbox_fill_modes,797 .destroy = vbox_connector_destroy,798 .reset = drm_atomic_helper_connector_reset,799 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,800 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,801};802 803static int vbox_connector_init(struct drm_device *dev,804 struct vbox_crtc *vbox_crtc,805 struct drm_encoder *encoder)806{807 struct vbox_connector *vbox_connector;808 struct drm_connector *connector;809 810 vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL);811 if (!vbox_connector)812 return -ENOMEM;813 814 connector = &vbox_connector->base;815 vbox_connector->vbox_crtc = vbox_crtc;816 817 drm_connector_init(dev, connector, &vbox_connector_funcs,818 DRM_MODE_CONNECTOR_VGA);819 drm_connector_helper_add(connector, &vbox_connector_helper_funcs);820 821 connector->interlace_allowed = 0;822 connector->doublescan_allowed = 0;823 824 drm_mode_create_suggested_offset_properties(dev);825 drm_object_attach_property(&connector->base,826 dev->mode_config.suggested_x_property, 0);827 drm_object_attach_property(&connector->base,828 dev->mode_config.suggested_y_property, 0);829 830 drm_connector_attach_encoder(connector, encoder);831 832 return 0;833}834 835static const struct drm_mode_config_funcs vbox_mode_funcs = {836 .fb_create = drm_gem_fb_create_with_dirty,837 .mode_valid = drm_vram_helper_mode_valid,838 .atomic_check = drm_atomic_helper_check,839 .atomic_commit = drm_atomic_helper_commit,840};841 842int vbox_mode_init(struct vbox_private *vbox)843{844 struct drm_device *dev = &vbox->ddev;845 struct drm_encoder *encoder;846 struct vbox_crtc *vbox_crtc;847 unsigned int i;848 int ret;849 850 drm_mode_config_init(dev);851 852 dev->mode_config.funcs = (void *)&vbox_mode_funcs;853 dev->mode_config.min_width = 0;854 dev->mode_config.min_height = 0;855 dev->mode_config.preferred_depth = 24;856 dev->mode_config.max_width = VBE_DISPI_MAX_XRES;857 dev->mode_config.max_height = VBE_DISPI_MAX_YRES;858 859 for (i = 0; i < vbox->num_crtcs; ++i) {860 vbox_crtc = vbox_crtc_init(dev, i);861 if (IS_ERR(vbox_crtc)) {862 ret = PTR_ERR(vbox_crtc);863 goto err_drm_mode_cleanup;864 }865 encoder = vbox_encoder_init(dev, i);866 if (!encoder) {867 ret = -ENOMEM;868 goto err_drm_mode_cleanup;869 }870 ret = vbox_connector_init(dev, vbox_crtc, encoder);871 if (ret)872 goto err_drm_mode_cleanup;873 }874 875 drm_mode_config_reset(dev);876 return 0;877 878err_drm_mode_cleanup:879 drm_mode_config_cleanup(dev);880 return ret;881}882 883void vbox_mode_fini(struct vbox_private *vbox)884{885 drm_mode_config_cleanup(&vbox->ddev);886}887