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path: root/drivers/staging/vboxvideo/vbox_mode.c
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Diffstat (limited to 'drivers/staging/vboxvideo/vbox_mode.c')
-rw-r--r--drivers/staging/vboxvideo/vbox_mode.c956
1 files changed, 0 insertions, 956 deletions
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
deleted file mode 100644
index f105360a574e..000000000000
--- a/drivers/staging/vboxvideo/vbox_mode.c
+++ /dev/null
@@ -1,956 +0,0 @@
-// 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 <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-#include <linux/export.h>
-
-#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_plane_helper.h>
-#include <drm/drm_probe_helper.h>
-#include <drm/drm_vblank.h>
-
-#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 = crtc->dev->dev_private;
- 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 = crtc->dev->dev_private;
- 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 (to_vbox_framebuffer(fb1) == &vbox->afb)
- 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 vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
- struct vbox_private *vbox = crtc->dev->dev_private;
- 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 = vbox_bo_gpu_offset(bo);
-
- /* 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_crtc_state *old_crtc_state)
-{
-}
-
-static void vbox_crtc_atomic_disable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
-{
-}
-
-static void vbox_crtc_atomic_flush(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
-{
- struct drm_pending_vblank_event *event;
- unsigned long flags;
-
- if (crtc->state && crtc->state->event) {
- event = crtc->state->event;
- crtc->state->event = NULL;
-
- spin_lock_irqsave(&crtc->dev->event_lock, flags);
- drm_crtc_send_vblank_event(crtc, event);
- spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
- }
-}
-
-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_plane_state *new_state)
-{
- struct drm_crtc_state *crtc_state = NULL;
-
- if (new_state->crtc) {
- crtc_state = drm_atomic_get_existing_crtc_state(
- new_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_plane_state *old_state)
-{
- struct drm_crtc *crtc = plane->state->crtc;
- struct drm_framebuffer *fb = plane->state->fb;
-
- vbox_crtc_set_base_and_mode(crtc, fb,
- plane->state->src_x >> 16,
- plane->state->src_y >> 16);
-}
-
-static void vbox_primary_atomic_disable(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- 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_primary_prepare_fb(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct vbox_bo *bo;
- int ret;
-
- if (!new_state->fb)
- return 0;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
- ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
- if (ret)
- DRM_WARN("Error %d pinning new fb, out of video mem?\n", ret);
-
- return ret;
-}
-
-static void vbox_primary_cleanup_fb(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_bo *bo;
-
- if (!old_state->fb)
- return;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(old_state->fb)->obj);
- vbox_bo_unpin(bo);
-}
-
-static int vbox_cursor_atomic_check(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- 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(
- new_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_plane_state *old_state)
-{
- struct vbox_private *vbox =
- container_of(plane->dev, struct vbox_private, ddev);
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(plane->state->crtc);
- struct drm_framebuffer *fb = plane->state->fb;
- struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
- u32 width = plane->state->crtc_w;
- u32 height = plane->state->crtc_h;
- size_t data_size, mask_size;
- u32 flags;
- u8 *src;
-
- /*
- * 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;
-
- /* pinning is done in prepare/cleanup framebuffer */
- src = vbox_bo_kmap(bo);
- if (IS_ERR(src)) {
- mutex_unlock(&vbox->hw_mutex);
- DRM_WARN("Could not kmap cursor bo, skipping update\n");
- return;
- }
-
- /*
- * 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);
- vbox_bo_kunmap(bo);
-
- 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_plane_state *old_state)
-{
- 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 int vbox_cursor_prepare_fb(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct vbox_bo *bo;
-
- if (!new_state->fb)
- return 0;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
- return vbox_bo_pin(bo, TTM_PL_FLAG_SYSTEM);
-}
-
-static void vbox_cursor_cleanup_fb(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_bo *bo;
-
- if (!plane->state->fb)
- return;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(plane->state->fb)->obj);
- vbox_bo_unpin(bo);
-}
-
-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,
- .prepare_fb = vbox_cursor_prepare_fb,
- .cleanup_fb = vbox_cursor_cleanup_fb,
-};
-
-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,
- .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 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,
- .prepare_fb = vbox_primary_prepare_fb,
- .cleanup_fb = vbox_primary_cleanup_fb,
-};
-
-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 = connector->dev->dev_private;
- /*
- * Heuristic: we do not want to tell the host that we support dynamic
- * resizing unless we feel confident that the user space client using
- * the video driver can handle hot-plug events. So the first time modes
- * are queried after a "master" switch we tell the host that we do not,
- * and immediately after we send the client a hot-plug notification as
- * a test to see if they will respond and query again.
- * That is also the reason why capabilities are reported to the host at
- * this place in the code rather than elsewhere.
- * We need to report the flags location before reporting the IRQ
- * capability.
- */
- 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);
- 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);
-
- 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 struct drm_framebuffer *vbox_user_framebuffer_create(
- struct drm_device *dev,
- struct drm_file *filp,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- struct vbox_private *vbox =
- container_of(dev, struct vbox_private, ddev);
- struct drm_gem_object *obj;
- struct vbox_framebuffer *vbox_fb;
- int ret = -ENOMEM;
-
- obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
- if (!obj)
- return ERR_PTR(-ENOENT);
-
- vbox_fb = kzalloc(sizeof(*vbox_fb), GFP_KERNEL);
- if (!vbox_fb)
- goto err_unref_obj;
-
- ret = vbox_framebuffer_init(vbox, vbox_fb, mode_cmd, obj);
- if (ret)
- goto err_free_vbox_fb;
-
- return &vbox_fb->base;
-
-err_free_vbox_fb:
- kfree(vbox_fb);
-err_unref_obj:
- drm_gem_object_put_unlocked(obj);
- return ERR_PTR(ret);
-}
-
-static const struct drm_mode_config_funcs vbox_mode_funcs = {
- .fb_create = vbox_user_framebuffer_create,
- .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);
-}