/* $Id: vbox_mode.c 62568 2016-07-26 15:30:28Z vboxsync $ */ /** @file * VirtualBox Additions Linux kernel video driver */ /* * Copyright (C) 2013-2016 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * -------------------------------------------------------------------- * * This code is based on * ast_mode.c * with the following copyright and permission notice: * * Copyright 2012 Red Hat Inc. * Parts based on xf86-video-ast * Copyright (c) 2005 ASPEED Technology Inc. * * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: Dave Airlie */ #include "vbox_drv.h" #include #include #include #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) # include #endif static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height, int32_t hot_x, int32_t hot_y); static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y); /** 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, const struct drm_display_mode *mode) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox; int width, height, bpp, pitch; unsigned crtc_id; uint16_t flags; LogFunc(("vboxvideo: %d: vbox_crtc=%p, CRTC_FB(crtc)=%p\n", __LINE__, vbox_crtc, CRTC_FB(crtc))); vbox = crtc->dev->dev_private; width = mode->hdisplay ? mode->hdisplay : 640; height = mode->vdisplay ? mode->vdisplay : 480; crtc_id = vbox_crtc->crtc_id; bpp = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32; #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0) pitch = crtc->enabled ? CRTC_FB(crtc)->pitch : width * bpp / 8; #else pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8; #endif /* 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 && crtc->enabled && vbox_crtc->fb_offset / pitch < 0xffff - crtc->y && vbox_crtc->fb_offset % (bpp / 8) == 0) VBoxVideoSetModeRegisters(width, height, pitch * 8 / bpp, CRTC_FB(crtc)->bits_per_pixel, 0, vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x, vbox_crtc->fb_offset / pitch + crtc->y); flags = VBVA_SCREEN_F_ACTIVE; flags |= (crtc->enabled && !vbox_crtc->blanked ? 0 : VBVA_SCREEN_F_BLANK); flags |= (vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0); VBoxHGSMIProcessDisplayInfo(&vbox->submit_info, vbox_crtc->crtc_id, crtc->x, crtc->y, crtc->x * bpp / 8 + crtc->y * pitch, pitch, width, height, vbox_crtc->blanked ? 0 : bpp, flags); VBoxHGSMIReportFlagsLocation(&vbox->submit_info, vbox->vram_map_start + vbox->host_flags_offset); LogFunc(("vboxvideo: %d\n", __LINE__)); } static int vbox_set_view(struct drm_crtc *crtc) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox = crtc->dev->dev_private; void *p; LogFunc(("vboxvideo: %d: vbox_crtc=%p\n", __LINE__, vbox_crtc)); /* 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 = VBoxHGSMIBufferAlloc(&vbox->submit_info, sizeof(VBVAINFOVIEW), HGSMI_CH_VBVA, VBVA_INFO_VIEW); if (p) { VBVAINFOVIEW *pInfo = (VBVAINFOVIEW *)p; pInfo->u32ViewIndex = vbox_crtc->crtc_id; pInfo->u32ViewOffset = vbox_crtc->fb_offset; pInfo->u32ViewSize = vbox->available_vram_size - vbox_crtc->fb_offset + vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE; pInfo->u32MaxScreenSize = vbox->available_vram_size - vbox_crtc->fb_offset; VBoxHGSMIBufferSubmit(&vbox->submit_info, p); VBoxHGSMIBufferFree(&vbox->submit_info, p); } else return -ENOMEM; LogFunc(("vboxvideo: %d: p=%p\n", __LINE__, p)); return 0; } static void vbox_crtc_load_lut(struct drm_crtc *crtc) { } static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox = crtc->dev->dev_private; LogFunc(("vboxvideo: %d: vbox_crtc=%p, mode=%d\n", __LINE__, vbox_crtc, mode)); switch (mode) { case DRM_MODE_DPMS_ON: vbox_crtc->blanked = false; break; case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: vbox_crtc->blanked = true; break; } mutex_lock(&vbox->hw_mutex); vbox_do_modeset(crtc, &crtc->hwmode); mutex_unlock(&vbox->hw_mutex); LogFunc(("vboxvideo: %d\n", __LINE__)); } static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { return true; } /* We move buffers which are not in active use out of VRAM to save memory. */ static int vbox_crtc_do_set_base(struct drm_crtc *crtc, struct drm_framebuffer *fb, int x, int y, int atomic) { struct vbox_private *vbox = crtc->dev->dev_private; struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct drm_gem_object *obj; struct vbox_framebuffer *vbox_fb; struct vbox_bo *bo; int ret; u64 gpu_addr; LogFunc(("vboxvideo: %d: fb=%p, vbox_crtc=%p\n", __LINE__, fb, vbox_crtc)); /* push the previous fb to system ram */ if (!atomic && fb) { vbox_fb = to_vbox_framebuffer(fb); obj = vbox_fb->obj; bo = gem_to_vbox_bo(obj); ret = vbox_bo_reserve(bo, false); if (ret) return ret; vbox_bo_push_sysram(bo); vbox_bo_unreserve(bo); } vbox_fb = to_vbox_framebuffer(CRTC_FB(crtc)); obj = vbox_fb->obj; bo = gem_to_vbox_bo(obj); ret = vbox_bo_reserve(bo, false); if (ret) return ret; ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr); if (ret) { vbox_bo_unreserve(bo); return ret; } if (&vbox->fbdev->afb == vbox_fb) { /* if pushing console in kmap it */ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap); if (ret) DRM_ERROR("failed to kmap fbcon\n"); else vbox_fbdev_set_base(vbox, gpu_addr); } vbox_bo_unreserve(bo); /* vbox_set_start_address_crt1(crtc, (u32)gpu_addr); */ vbox_crtc->fb_offset = gpu_addr; if (vbox_crtc->crtc_id == 0) { vbox->input_mapping_width = CRTC_FB(crtc)->width; vbox->input_mapping_height = CRTC_FB(crtc)->height; } LogFunc(("vboxvideo: %d: vbox_fb=%p, obj=%p, bo=%p, gpu_addr=%u\n", __LINE__, vbox_fb, obj, bo, (unsigned)gpu_addr)); return 0; } static int vbox_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { LogFunc(("vboxvideo: %d\n", __LINE__)); return vbox_crtc_do_set_base(crtc, old_fb, x, y, 0); } static int vbox_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode, int x, int y, struct drm_framebuffer *old_fb) { struct vbox_private *vbox = crtc->dev->dev_private; int rc = 0; LogFunc(("vboxvideo: %d: vbox=%p\n", __LINE__, vbox)); vbox_crtc_mode_set_base(crtc, x, y, old_fb); mutex_lock(&vbox->hw_mutex); /* Disable VBVA when someone sets a new mode until they send us dirty * rectangles, which proves that they can. A single screen can work * without VBVA. */ vbox_disable_accel(vbox); rc = vbox_set_view(crtc); if (!rc) vbox_do_modeset(crtc, mode); /* Note that the input mapping is always relative to the first screen. */ VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0, vbox->input_mapping_width, vbox->input_mapping_height); mutex_unlock(&vbox->hw_mutex); LogFunc(("vboxvideo: %d\n", __LINE__)); return rc; } static void vbox_crtc_disable(struct drm_crtc *crtc) { } static void vbox_crtc_prepare(struct drm_crtc *crtc) { } static void vbox_crtc_commit(struct drm_crtc *crtc) { } static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = { .dpms = vbox_crtc_dpms, .mode_fixup = vbox_crtc_mode_fixup, .mode_set = vbox_crtc_mode_set, /* .mode_set_base = vbox_crtc_mode_set_base, */ .disable = vbox_crtc_disable, .load_lut = vbox_crtc_load_lut, .prepare = vbox_crtc_prepare, .commit = vbox_crtc_commit, }; static void vbox_crtc_reset(struct drm_crtc *crtc) { } static void vbox_crtc_destroy(struct drm_crtc *crtc) { drm_crtc_cleanup(crtc); kfree(crtc); } static const struct drm_crtc_funcs vbox_crtc_funcs = { .cursor_move = vbox_cursor_move, .cursor_set2 = vbox_cursor_set2, .reset = vbox_crtc_reset, .set_config = drm_crtc_helper_set_config, /* .gamma_set = vbox_crtc_gamma_set, */ .destroy = vbox_crtc_destroy, }; static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned i) { struct vbox_crtc *vbox_crtc; LogFunc(("vboxvideo: %d\n", __LINE__)); vbox_crtc = kzalloc(sizeof(struct vbox_crtc), GFP_KERNEL); if (!vbox_crtc) return NULL; vbox_crtc->crtc_id = i; drm_crtc_init(dev, &vbox_crtc->base, &vbox_crtc_funcs); drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256); drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs); LogFunc(("vboxvideo: %d: crtc=%p\n", __LINE__, vbox_crtc)); return vbox_crtc; } static void vbox_encoder_destroy(struct drm_encoder *encoder) { LogFunc(("vboxvideo: %d: encoder=%p\n", __LINE__, encoder)); drm_encoder_cleanup(encoder); kfree(encoder); } #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0) static struct drm_encoder *drm_encoder_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); return mo ? obj_to_encoder(mo) : NULL; } #endif static struct drm_encoder *vbox_best_single_encoder(struct drm_connector *connector) { int enc_id = connector->encoder_ids[0]; LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector)); /* pick the encoder ids */ if (enc_id) return drm_encoder_find(connector->dev, enc_id); LogFunc(("vboxvideo: %d\n", __LINE__)); return NULL; } static const struct drm_encoder_funcs vbox_enc_funcs = { .destroy = vbox_encoder_destroy, }; static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode) { } static bool vbox_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { return true; } static void vbox_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { } static void vbox_encoder_prepare(struct drm_encoder *encoder) { } static void vbox_encoder_commit(struct drm_encoder *encoder) { } static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = { .dpms = vbox_encoder_dpms, .mode_fixup = vbox_mode_fixup, .prepare = vbox_encoder_prepare, .commit = vbox_encoder_commit, .mode_set = vbox_encoder_mode_set, }; static struct drm_encoder *vbox_encoder_init(struct drm_device *dev, unsigned i) { struct vbox_encoder *vbox_encoder; LogFunc(("vboxvideo: %d: dev=%d\n", __LINE__)); vbox_encoder = kzalloc(sizeof(struct vbox_encoder), GFP_KERNEL); if (!vbox_encoder) return NULL; drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs, DRM_MODE_ENCODER_DAC #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0) , NULL #endif ); drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs); vbox_encoder->base.possible_crtcs = 1 << i; LogFunc(("vboxvideo: %d: vbox_encoder=%p\n", __LINE__, vbox_encoder)); 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, standard 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* descriptor block 1 goes here */ 0x00, 0x00, 0x00, 0xFD, 0x00, /* descriptor block 2, monitor ranges */ 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */ 0x00, 0x00, 0x00, 0xFC, 0x00, /* descriptor block 3, monitor name */ 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', '\n', 0x00, 0x00, 0x00, 0x10, 0x00, /* descriptor block 4: dummy data */ 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 i; unsigned 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_mode_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 num_modes = 0; int preferred_width, preferred_height; LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector)); vbox_connector = to_vbox_connector(connector); vbox = connector->dev->dev_private; if (vbox_connector->vbox_crtc->crtc_id == 0) vbox_enable_caps(vbox); if (!vbox->initial_mode_queried) { if (vbox_connector->vbox_crtc->crtc_id == 0) { vbox->initial_mode_queried = true; vbox_report_hotplug(vbox); } return drm_add_modes_noedid(connector, 800, 600); } 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); return num_modes; } static int vbox_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { return MODE_OK; } static void vbox_connector_destroy(struct drm_connector *connector) { struct vbox_connector *vbox_connector = NULL; LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector)); vbox_connector = to_vbox_connector(connector); #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0) drm_sysfs_connector_remove(connector); #else drm_connector_unregister(connector); #endif 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 = NULL; (void) force; LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, 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, uint32_t max_x, uint32_t max_y) { struct vbox_connector *vbox_connector; struct drm_device *dev; struct drm_display_mode *mode, *iterator; LogFunc(("vboxvideo: %d: connector=%p, max_x=%lu, max_y = %lu\n", __LINE__, connector, (unsigned long)max_x, (unsigned long)max_y)); 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 = { .mode_valid = vbox_mode_valid, .get_modes = vbox_get_modes, .best_encoder = vbox_best_single_encoder, }; static const struct drm_connector_funcs vbox_connector_funcs = { .dpms = drm_helper_connector_dpms, .detect = vbox_connector_detect, .fill_modes = vbox_fill_modes, .destroy = vbox_connector_destroy, }; 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; LogFunc(("vboxvideo: %d: dev=%p, encoder=%p\n", __LINE__, dev, encoder)); vbox_connector = kzalloc(sizeof(struct 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; #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 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); #endif #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0) drm_sysfs_connector_add(connector); #else drm_connector_register(connector); #endif drm_mode_connector_attach_encoder(connector, encoder); LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector)); return 0; } int vbox_mode_init(struct drm_device *dev) { struct vbox_private *vbox = dev->dev_private; struct drm_encoder *encoder; struct vbox_crtc *vbox_crtc; unsigned i; /* vbox_cursor_init(dev); */ LogFunc(("vboxvideo: %d: dev=%p\n", __LINE__, dev)); for (i = 0; i < vbox->num_crtcs; ++i) { vbox_crtc = vbox_crtc_init(dev, i); if (!vbox_crtc) return -ENOMEM; encoder = vbox_encoder_init(dev, i); if (!encoder) return -ENOMEM; vbox_connector_init(dev, vbox_crtc, encoder); } return 0; } void vbox_mode_fini(struct drm_device *dev) { /* vbox_cursor_fini(dev); */ } /** 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, int width, int height, size_t mask_size) { unsigned i, j; size_t line_size = (width + 7) / 8; memcpy(dst + mask_size, src, width * height * 4); for (i = 0; i < height; ++i) for (j = 0; j < width; ++j) if (((uint32_t *)src)[i * width + j] > 0xf0000000) dst[i * line_size + j / 8] |= (0x80 >> (j % 8)); } static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height, int32_t hot_x, int32_t hot_y) { struct vbox_private *vbox = crtc->dev->dev_private; struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct drm_gem_object *obj; struct vbox_bo *bo; int ret, rc; struct ttm_bo_kmap_obj uobj_map; u8 *src; u8 *dst = NULL; u32 caps = 0; size_t data_size, mask_size; bool src_isiomem; /* Re-set this regularly as in 5.0.20 and earlier the information was lost * on save and restore. */ VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0, vbox->input_mapping_width, vbox->input_mapping_height); if (!handle) { bool cursor_enabled = false; struct drm_crtc *crtci; /* Hide cursor. */ vbox_crtc->cursor_enabled = false; list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, head) if (to_vbox_crtc(crtci)->cursor_enabled) cursor_enabled = true; if (!cursor_enabled) VBoxHGSMIUpdatePointerShape(&vbox->submit_info, 0, 0, 0, 0, 0, NULL, 0); return 0; } vbox_crtc->cursor_enabled = true; if ( width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT || width == 0 || height == 0) return -EINVAL; rc = VBoxQueryConfHGSMI(&vbox->submit_info, VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps); ret = -RTErrConvertToErrno(rc); if (ret) return ret; if ( caps & VMMDEV_MOUSE_HOST_CANNOT_HWPOINTER || !(caps & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE)) return -EINVAL; #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) obj = drm_gem_object_lookup(file_priv, handle); #else obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); #endif if (obj) { bo = gem_to_vbox_bo(obj); ret = vbox_bo_reserve(bo, false); if (!ret) { /* 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; vbox->cursor_hot_x = min((uint32_t)max(hot_x, 0), width); vbox->cursor_hot_y = min((uint32_t)max(hot_y, 0), height); vbox->cursor_width = width; vbox->cursor_height = height; vbox->cursor_data_size = data_size; dst = vbox->cursor_data; ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map); if (!ret) { src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem); if (!src_isiomem) { uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA; copy_cursor_image(src, dst, width, height, mask_size); rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags, vbox->cursor_hot_x, vbox->cursor_hot_y, width, height, dst, data_size); ret = -RTErrConvertToErrno(rc); } else DRM_ERROR("src cursor bo should be in main memory\n"); ttm_bo_kunmap(&uobj_map); } else vbox->cursor_data_size = 0; vbox_bo_unreserve(bo); } drm_gem_object_unreference_unlocked(obj); } else { DRM_ERROR("Cannot find cursor object %x for crtc\n", handle); ret = -ENOENT; } return ret; } static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y) { struct vbox_private *vbox = crtc->dev->dev_private; uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA; uint32_t host_x, host_y; uint32_t hot_x = 0; uint32_t hot_y = 0; int rc; /* We compare these to unsigned later and don't need to handle negative. */ if (x + crtc->x < 0 || y + crtc->y < 0 || vbox->cursor_data_size == 0) return 0; rc = VBoxHGSMICursorPosition(&vbox->submit_info, true, x + crtc->x, y + crtc->y, &host_x, &host_y); /* Work around a bug after save and restore in 5.0.20 and earlier. */ if (RT_FAILURE(rc) || (host_x == 0 && host_y == 0)) return -RTErrConvertToErrno(rc); if (x + crtc->x < host_x) hot_x = min(host_x - x - crtc->x, vbox->cursor_width); if (y + crtc->y < host_y) hot_y = min(host_y - y - crtc->y, vbox->cursor_height); if (hot_x == vbox->cursor_hot_x && hot_y == vbox->cursor_hot_y) return 0; vbox->cursor_hot_x = hot_x; vbox->cursor_hot_y = hot_y; rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags, hot_x, hot_y, vbox->cursor_width, vbox->cursor_height, vbox->cursor_data, vbox->cursor_data_size); return -RTErrConvertToErrno(rc); }