diff options
Diffstat (limited to 'vbox_mode.c')
| -rw-r--r-- | vbox_mode.c | 720 |
1 files changed, 720 insertions, 0 deletions
diff --git a/vbox_mode.c b/vbox_mode.c new file mode 100644 index 000000000000..5619c9431ff5 --- /dev/null +++ b/vbox_mode.c @@ -0,0 +1,720 @@ +/* $Id$ */ +/** @file + * VirtualBox Additions Linux kernel video driver + */ +/* + * Copyright (C) 2013 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 <airlied@redhat.com> + */ +#include "vbox_drv.h" +#include <VBox/VBoxVideo.h> +#include <linux/export.h> +#include <drm/drm_crtc_helper.h> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) +# include <drm/drm_plane_helper.h> +#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->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->vram_size - vbox_crtc->fb_offset + + vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE; + pInfo->u32MaxScreenSize = vbox->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); + 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); +}
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