diff options
Diffstat (limited to 'drivers/staging/vboxvideo/vbox_mode.c')
| -rw-r--r-- | drivers/staging/vboxvideo/vbox_mode.c | 957 |
1 files changed, 0 insertions, 957 deletions
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c deleted file mode 100644 index 213551394495..000000000000 --- a/drivers/staging/vboxvideo/vbox_mode.c +++ /dev/null @@ -1,957 +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); -} |