163 lines
4.7 KiB
C
163 lines
4.7 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright (C) 2013-2017 Oracle Corporation
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* This file is based on ast_drv.h
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* Copyright 2012 Red Hat Inc.
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* Authors: Dave Airlie <airlied@redhat.com>
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* Michael Thayer <michael.thayer@oracle.com,
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* Hans de Goede <hdegoede@redhat.com>
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*/
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#ifndef __VBOX_DRV_H__
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#define __VBOX_DRV_H__
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#include <linux/genalloc.h>
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#include <linux/io.h>
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#include <linux/irqreturn.h>
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#include <linux/string.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_gem.h>
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#include <drm/drm_gem_vram_helper.h>
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#include "vboxvideo_guest.h"
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#include "vboxvideo_vbe.h"
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#include "hgsmi_ch_setup.h"
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#define DRIVER_NAME "vboxvideo"
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#define DRIVER_DESC "Oracle VM VirtualBox Graphics Card"
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#define DRIVER_DATE "20130823"
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#define DRIVER_MAJOR 1
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#define DRIVER_MINOR 0
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#define DRIVER_PATCHLEVEL 0
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#define VBOX_MAX_CURSOR_WIDTH 64
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#define VBOX_MAX_CURSOR_HEIGHT 64
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#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
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#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
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#define VBOX_MAX_SCREENS 32
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#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
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VBVA_ADAPTER_INFORMATION_SIZE)
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#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
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#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
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sizeof(struct hgsmi_host_flags))
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#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
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struct vbox_private {
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/* Must be first; or we must define our own release callback */
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struct drm_device ddev;
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u8 __iomem *guest_heap;
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u8 __iomem *vbva_buffers;
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struct gen_pool *guest_pool;
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struct vbva_buf_ctx *vbva_info;
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bool any_pitch;
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u32 num_crtcs;
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/* Amount of available VRAM, including space used for buffers. */
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u32 full_vram_size;
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/* Amount of available VRAM, not including space used for buffers. */
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u32 available_vram_size;
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/* Array of structures for receiving mode hints. */
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struct vbva_modehint *last_mode_hints;
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int fb_mtrr;
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struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
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struct work_struct hotplug_work;
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u32 input_mapping_width;
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u32 input_mapping_height;
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/*
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* Is user-space using an X.Org-style layout of one large frame-buffer
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* encompassing all screen ones or is the fbdev console active?
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*/
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bool single_framebuffer;
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u8 cursor_data[CURSOR_DATA_SIZE];
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};
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#undef CURSOR_PIXEL_COUNT
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#undef CURSOR_DATA_SIZE
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struct vbox_connector {
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struct drm_connector base;
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char name[32];
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struct vbox_crtc *vbox_crtc;
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struct {
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u32 width;
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u32 height;
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bool disconnected;
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} mode_hint;
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};
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struct vbox_crtc {
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struct drm_crtc base;
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bool disconnected;
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unsigned int crtc_id;
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u32 fb_offset;
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bool cursor_enabled;
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u32 x_hint;
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u32 y_hint;
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/*
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* When setting a mode we not only pass the mode to the hypervisor,
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* but also information on how to map / translate input coordinates
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* for the emulated USB tablet. This input-mapping may change when
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* the mode on *another* crtc changes.
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*
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* This means that sometimes we must do a modeset on other crtc-s then
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* the one being changed to update the input-mapping. Including crtc-s
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* which may be disabled inside the guest (shown as a black window
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* on the host unless closed by the user).
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*
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* With atomic modesetting the mode-info of disabled crtcs gets zeroed
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* yet we need it when updating the input-map to avoid resizing the
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* window as a side effect of a mode_set on another crtc. Therefor we
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* cache the info of the last mode below.
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*/
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u32 width;
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u32 height;
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u32 x;
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u32 y;
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};
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struct vbox_encoder {
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struct drm_encoder base;
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};
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#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
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#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
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#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
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#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
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bool vbox_check_supported(u16 id);
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int vbox_hw_init(struct vbox_private *vbox);
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void vbox_hw_fini(struct vbox_private *vbox);
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int vbox_mode_init(struct vbox_private *vbox);
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void vbox_mode_fini(struct vbox_private *vbox);
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void vbox_report_caps(struct vbox_private *vbox);
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int vbox_mm_init(struct vbox_private *vbox);
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void vbox_mm_fini(struct vbox_private *vbox);
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/* vbox_irq.c */
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int vbox_irq_init(struct vbox_private *vbox);
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void vbox_irq_fini(struct vbox_private *vbox);
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void vbox_report_hotplug(struct vbox_private *vbox);
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irqreturn_t vbox_irq_handler(int irq, void *arg);
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/* vbox_hgsmi.c */
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void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
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u8 channel, u16 channel_info);
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void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
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int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
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static inline void vbox_write_ioport(u16 index, u16 data)
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{
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outw(index, VBE_DISPI_IOPORT_INDEX);
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outw(data, VBE_DISPI_IOPORT_DATA);
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}
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#endif
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