f508603420
We were deinitialising the array, but not also freeing the allocation. Signed-off-by: Daniel Stone <daniels@collabora.com>
3250 lines
86 KiB
C
3250 lines
86 KiB
C
/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2011 Intel Corporation
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* Copyright © 2017, 2018 Collabora, Ltd.
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* Copyright © 2017, 2018 General Electric Company
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* Copyright (c) 2018 DisplayLink (UK) Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/input.h>
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#include <linux/vt.h>
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#include <assert.h>
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#include <sys/mman.h>
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#include <time.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <libudev.h>
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#include <libweston/libweston.h>
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#include <libweston/backend-drm.h>
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#include <libweston/weston-log.h>
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#include "drm-internal.h"
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#include "shared/helpers.h"
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#include "shared/timespec-util.h"
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#include "shared/string-helpers.h"
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#include "shared/weston-drm-fourcc.h"
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#include "pixman-renderer.h"
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#include "pixel-formats.h"
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#include "libbacklight.h"
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#include "libinput-seat.h"
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#include "launcher-util.h"
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#include "vaapi-recorder.h"
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#include "presentation-time-server-protocol.h"
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#include "linux-dmabuf.h"
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#include "linux-dmabuf-unstable-v1-server-protocol.h"
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#include "linux-explicit-synchronization.h"
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static const char default_seat[] = "seat0";
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static void
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drm_backend_create_faked_zpos(struct drm_backend *b)
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{
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struct drm_plane *plane;
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uint64_t zpos = 0ULL;
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uint64_t zpos_min_primary;
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uint64_t zpos_min_overlay;
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uint64_t zpos_min_cursor;
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zpos_min_primary = zpos;
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wl_list_for_each(plane, &b->plane_list, link) {
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/* if the property is there, bail out sooner */
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if (plane->props[WDRM_PLANE_ZPOS].prop_id != 0)
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return;
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if (plane->type != WDRM_PLANE_TYPE_PRIMARY)
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continue;
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zpos++;
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}
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zpos_min_overlay = zpos;
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wl_list_for_each(plane, &b->plane_list, link) {
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if (plane->type != WDRM_PLANE_TYPE_OVERLAY)
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continue;
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zpos++;
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}
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zpos_min_cursor = zpos;
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wl_list_for_each(plane, &b->plane_list, link) {
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if (plane->type != WDRM_PLANE_TYPE_CURSOR)
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continue;
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zpos++;
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}
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drm_debug(b, "[drm-backend] zpos property not found. "
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"Using invented immutable zpos values:\n");
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/* assume that invented zpos values are immutable */
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wl_list_for_each(plane, &b->plane_list, link) {
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if (plane->type == WDRM_PLANE_TYPE_PRIMARY) {
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plane->zpos_min = zpos_min_primary;
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plane->zpos_max = zpos_min_primary;
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} else if (plane->type == WDRM_PLANE_TYPE_OVERLAY) {
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plane->zpos_min = zpos_min_overlay;
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plane->zpos_max = zpos_min_overlay;
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} else if (plane->type == WDRM_PLANE_TYPE_CURSOR) {
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plane->zpos_min = zpos_min_cursor;
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plane->zpos_max = zpos_min_cursor;
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}
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drm_debug(b, "\t[plane] %s plane %d, zpos_min %"PRIu64", "
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"zpos_max %"PRIu64"\n",
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drm_output_get_plane_type_name(plane),
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plane->plane_id, plane->zpos_min, plane->zpos_max);
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}
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}
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static int
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pageflip_timeout(void *data) {
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/*
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* Our timer just went off, that means we're not receiving drm
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* page flip events anymore for that output. Let's gracefully exit
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* weston with a return value so devs can debug what's going on.
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*/
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struct drm_output *output = data;
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struct weston_compositor *compositor = output->base.compositor;
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weston_log("Pageflip timeout reached on output %s, your "
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"driver is probably buggy! Exiting.\n",
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output->base.name);
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weston_compositor_exit_with_code(compositor, EXIT_FAILURE);
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return 0;
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}
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/* Creates the pageflip timer. Note that it isn't armed by default */
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static int
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drm_output_pageflip_timer_create(struct drm_output *output)
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{
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struct wl_event_loop *loop = NULL;
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struct weston_compositor *ec = output->base.compositor;
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loop = wl_display_get_event_loop(ec->wl_display);
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assert(loop);
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output->pageflip_timer = wl_event_loop_add_timer(loop,
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pageflip_timeout,
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output);
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if (output->pageflip_timer == NULL) {
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weston_log("creating drm pageflip timer failed: %s\n",
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strerror(errno));
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return -1;
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}
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return 0;
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}
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static void
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drm_output_destroy(struct weston_output *output_base);
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/**
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* Returns true if the plane can be used on the given output for its current
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* repaint cycle.
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*/
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bool
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drm_plane_is_available(struct drm_plane *plane, struct drm_output *output)
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{
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assert(plane->state_cur);
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if (output->virtual)
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return false;
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/* The plane still has a request not yet completed by the kernel. */
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if (!plane->state_cur->complete)
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return false;
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/* The plane is still active on another output. */
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if (plane->state_cur->output && plane->state_cur->output != output)
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return false;
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/* Check whether the plane can be used with this CRTC; possible_crtcs
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* is a bitmask of CRTC indices (pipe), rather than CRTC object ID. */
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return !!(plane->possible_crtcs & (1 << output->crtc->pipe));
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}
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struct drm_crtc *
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drm_crtc_find(struct drm_backend *b, uint32_t crtc_id)
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{
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struct drm_crtc *crtc;
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wl_list_for_each(crtc, &b->crtc_list, link) {
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if (crtc->crtc_id == crtc_id)
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return crtc;
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}
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return NULL;
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}
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struct drm_head *
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drm_head_find_by_connector(struct drm_backend *backend, uint32_t connector_id)
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{
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struct weston_head *base;
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struct drm_head *head;
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wl_list_for_each(base,
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&backend->compositor->head_list, compositor_link) {
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head = to_drm_head(base);
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if (head->connector.connector_id == connector_id)
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return head;
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}
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return NULL;
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}
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static struct drm_writeback *
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drm_writeback_find_by_connector(struct drm_backend *backend, uint32_t connector_id)
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{
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struct drm_writeback *writeback;
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wl_list_for_each(writeback, &backend->writeback_connector_list, link) {
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if (writeback->connector.connector_id == connector_id)
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return writeback;
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}
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return NULL;
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}
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/**
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* Get output state to disable output
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*
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* Returns a pointer to an output_state object which can be used to disable
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* an output (e.g. DPMS off).
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*
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* @param pending_state The pending state object owning this update
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* @param output The output to disable
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* @returns A drm_output_state to disable the output
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*/
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static struct drm_output_state *
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drm_output_get_disable_state(struct drm_pending_state *pending_state,
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struct drm_output *output)
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{
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struct drm_output_state *output_state;
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output_state = drm_output_state_duplicate(output->state_cur,
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pending_state,
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DRM_OUTPUT_STATE_CLEAR_PLANES);
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output_state->dpms = WESTON_DPMS_OFF;
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output_state->protection = WESTON_HDCP_DISABLE;
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return output_state;
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}
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/**
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* Mark a drm_output_state (the output's last state) as complete. This handles
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* any post-completion actions such as updating the repaint timer, disabling the
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* output, and finally freeing the state.
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*/
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void
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drm_output_update_complete(struct drm_output *output, uint32_t flags,
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unsigned int sec, unsigned int usec)
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{
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struct drm_backend *b = to_drm_backend(output->base.compositor);
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struct drm_plane_state *ps;
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struct timespec ts;
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/* Stop the pageflip timer instead of rearming it here */
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if (output->pageflip_timer)
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wl_event_source_timer_update(output->pageflip_timer, 0);
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wl_list_for_each(ps, &output->state_cur->plane_list, link)
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ps->complete = true;
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drm_output_state_free(output->state_last);
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output->state_last = NULL;
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if (output->destroy_pending) {
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output->destroy_pending = false;
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output->disable_pending = false;
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output->dpms_off_pending = false;
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drm_output_destroy(&output->base);
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return;
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} else if (output->disable_pending) {
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output->disable_pending = false;
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output->dpms_off_pending = false;
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weston_output_disable(&output->base);
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return;
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} else if (output->dpms_off_pending) {
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struct drm_pending_state *pending = drm_pending_state_alloc(b);
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output->dpms_off_pending = false;
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drm_output_get_disable_state(pending, output);
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drm_pending_state_apply_sync(pending);
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}
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if (output->state_cur->dpms == WESTON_DPMS_OFF &&
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output->base.repaint_status != REPAINT_AWAITING_COMPLETION) {
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/* DPMS can happen to us either in the middle of a repaint
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* cycle (when we have painted fresh content, only to throw it
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* away for DPMS off), or at any other random point. If the
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* latter is true, then we cannot go through finish_frame,
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* because the repaint machinery does not expect this. */
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return;
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}
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ts.tv_sec = sec;
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ts.tv_nsec = usec * 1000;
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if (output->state_cur->dpms != WESTON_DPMS_OFF)
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weston_output_finish_frame(&output->base, &ts, flags);
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else
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weston_output_finish_frame(&output->base, NULL,
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WP_PRESENTATION_FEEDBACK_INVALID);
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/* We can't call this from frame_notify, because the output's
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* repaint needed flag is cleared just after that */
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if (output->recorder)
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weston_output_schedule_repaint(&output->base);
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}
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static struct drm_fb *
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drm_output_render_pixman(struct drm_output_state *state,
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pixman_region32_t *damage)
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{
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struct drm_output *output = state->output;
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struct weston_compositor *ec = output->base.compositor;
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output->current_image ^= 1;
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pixman_renderer_output_set_buffer(&output->base,
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output->image[output->current_image]);
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pixman_renderer_output_set_hw_extra_damage(&output->base,
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&output->previous_damage);
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ec->renderer->repaint_output(&output->base, damage);
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pixman_region32_copy(&output->previous_damage, damage);
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return drm_fb_ref(output->dumb[output->current_image]);
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}
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void
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drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
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{
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struct drm_output *output = state->output;
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struct weston_compositor *c = output->base.compositor;
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struct drm_plane_state *scanout_state;
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struct drm_plane *scanout_plane = output->scanout_plane;
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struct drm_property_info *damage_info =
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&scanout_plane->props[WDRM_PLANE_FB_DAMAGE_CLIPS];
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struct drm_backend *b = to_drm_backend(c);
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struct drm_fb *fb;
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pixman_region32_t scanout_damage;
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pixman_box32_t *rects;
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int n_rects;
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|
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/* If we already have a client buffer promoted to scanout, then we don't
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* want to render. */
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scanout_state = drm_output_state_get_plane(state, scanout_plane);
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if (scanout_state->fb)
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return;
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|
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/*
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* If we don't have any damage on the primary plane, and we already
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* have a renderer buffer active, we can reuse it; else we pass
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* the damaged region into the renderer to re-render the affected
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* area. But, we still have to call the renderer anyway if any screen
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* capture is pending, otherwise the capture will not complete.
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*/
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if (!pixman_region32_not_empty(damage) &&
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wl_list_empty(&output->base.frame_signal.listener_list) &&
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scanout_plane->state_cur->fb &&
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(scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE ||
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scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB)) {
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fb = drm_fb_ref(scanout_plane->state_cur->fb);
|
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} else if (b->use_pixman) {
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fb = drm_output_render_pixman(state, damage);
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} else {
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fb = drm_output_render_gl(state, damage);
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}
|
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|
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if (!fb) {
|
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drm_plane_state_put_back(scanout_state);
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return;
|
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}
|
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|
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scanout_state->fb = fb;
|
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scanout_state->output = output;
|
|
|
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scanout_state->src_x = 0;
|
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scanout_state->src_y = 0;
|
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scanout_state->src_w = fb->width << 16;
|
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scanout_state->src_h = fb->height << 16;
|
|
|
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scanout_state->dest_x = 0;
|
|
scanout_state->dest_y = 0;
|
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scanout_state->dest_w = output->base.current_mode->width;
|
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scanout_state->dest_h = output->base.current_mode->height;
|
|
|
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pixman_region32_subtract(&c->primary_plane.damage,
|
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&c->primary_plane.damage, damage);
|
|
|
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/* Don't bother calculating plane damage if the plane doesn't support it */
|
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if (damage_info->prop_id == 0)
|
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return;
|
|
|
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pixman_region32_init(&scanout_damage);
|
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pixman_region32_copy(&scanout_damage, damage);
|
|
|
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if (output->base.zoom.active) {
|
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weston_matrix_transform_region(&scanout_damage,
|
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&output->base.matrix,
|
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&scanout_damage);
|
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} else {
|
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pixman_region32_translate(&scanout_damage,
|
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-output->base.x, -output->base.y);
|
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weston_transformed_region(output->base.width,
|
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output->base.height,
|
|
output->base.transform,
|
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output->base.current_scale,
|
|
&scanout_damage,
|
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&scanout_damage);
|
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}
|
|
|
|
assert(scanout_state->damage_blob_id == 0);
|
|
|
|
rects = pixman_region32_rectangles(&scanout_damage, &n_rects);
|
|
|
|
/*
|
|
* If this function fails, the blob id should still be 0.
|
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* This tells the kernel there is no damage information, which means
|
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* that it will consider the whole plane damaged. While this may
|
|
* affect efficiency, it should still produce correct results.
|
|
*/
|
|
drmModeCreatePropertyBlob(b->drm.fd, rects,
|
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sizeof(*rects) * n_rects,
|
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&scanout_state->damage_blob_id);
|
|
|
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pixman_region32_fini(&scanout_damage);
|
|
}
|
|
|
|
static int
|
|
drm_output_repaint(struct weston_output *output_base,
|
|
pixman_region32_t *damage,
|
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void *repaint_data)
|
|
{
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output *output = to_drm_output(output_base);
|
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struct drm_output_state *state = NULL;
|
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struct drm_plane_state *scanout_state;
|
|
|
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assert(!output->virtual);
|
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|
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if (output->disable_pending || output->destroy_pending)
|
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goto err;
|
|
|
|
assert(!output->state_last);
|
|
|
|
/* If planes have been disabled in the core, we might not have
|
|
* hit assign_planes at all, so might not have valid output state
|
|
* here. */
|
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state = drm_pending_state_get_output(pending_state, output);
|
|
if (!state)
|
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state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
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DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
state->dpms = WESTON_DPMS_ON;
|
|
|
|
if (output_base->allow_protection)
|
|
state->protection = output_base->desired_protection;
|
|
else
|
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state->protection = WESTON_HDCP_DISABLE;
|
|
|
|
drm_output_render(state, damage);
|
|
scanout_state = drm_output_state_get_plane(state,
|
|
output->scanout_plane);
|
|
if (!scanout_state || !scanout_state->fb)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
/* Determine the type of vblank synchronization to use for the output.
|
|
*
|
|
* The pipe parameter indicates which CRTC is in use. Knowing this, we
|
|
* can determine which vblank sequence type to use for it. Traditional
|
|
* cards had only two CRTCs, with CRTC 0 using no special flags, and
|
|
* CRTC 1 using DRM_VBLANK_SECONDARY. The first bit of the pipe
|
|
* parameter indicates this.
|
|
*
|
|
* Bits 1-5 of the pipe parameter are 5 bit wide pipe number between
|
|
* 0-31. If this is non-zero it indicates we're dealing with a
|
|
* multi-gpu situation and we need to calculate the vblank sync
|
|
* using DRM_BLANK_HIGH_CRTC_MASK.
|
|
*/
|
|
static unsigned int
|
|
drm_waitvblank_pipe(struct drm_crtc *crtc)
|
|
{
|
|
if (crtc->pipe > 1)
|
|
return (crtc->pipe << DRM_VBLANK_HIGH_CRTC_SHIFT) &
|
|
DRM_VBLANK_HIGH_CRTC_MASK;
|
|
else if (crtc->pipe > 0)
|
|
return DRM_VBLANK_SECONDARY;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_output_start_repaint_loop(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_pending_state *pending_state;
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_backend *backend =
|
|
to_drm_backend(output_base->compositor);
|
|
struct timespec ts, tnow;
|
|
struct timespec vbl2now;
|
|
int64_t refresh_nsec;
|
|
int ret;
|
|
drmVBlank vbl = {
|
|
.request.type = DRM_VBLANK_RELATIVE,
|
|
.request.sequence = 0,
|
|
.request.signal = 0,
|
|
};
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
return 0;
|
|
|
|
if (!scanout_plane->state_cur->fb) {
|
|
/* We can't page flip if there's no mode set */
|
|
goto finish_frame;
|
|
}
|
|
|
|
/* Need to smash all state in from scratch; current timings might not
|
|
* be what we want, page flip might not work, etc.
|
|
*/
|
|
if (backend->state_invalid)
|
|
goto finish_frame;
|
|
|
|
assert(scanout_plane->state_cur->output == output);
|
|
|
|
/* Try to get current msc and timestamp via instant query */
|
|
vbl.request.type |= drm_waitvblank_pipe(output->crtc);
|
|
ret = drmWaitVBlank(backend->drm.fd, &vbl);
|
|
|
|
/* Error ret or zero timestamp means failure to get valid timestamp */
|
|
if ((ret == 0) && (vbl.reply.tval_sec > 0 || vbl.reply.tval_usec > 0)) {
|
|
ts.tv_sec = vbl.reply.tval_sec;
|
|
ts.tv_nsec = vbl.reply.tval_usec * 1000;
|
|
|
|
/* Valid timestamp for most recent vblank - not stale?
|
|
* Stale ts could happen on Linux 3.17+, so make sure it
|
|
* is not older than 1 refresh duration since now.
|
|
*/
|
|
weston_compositor_read_presentation_clock(backend->compositor,
|
|
&tnow);
|
|
timespec_sub(&vbl2now, &tnow, &ts);
|
|
refresh_nsec =
|
|
millihz_to_nsec(output->base.current_mode->refresh);
|
|
if (timespec_to_nsec(&vbl2now) < refresh_nsec) {
|
|
drm_output_update_msc(output, vbl.reply.sequence);
|
|
weston_output_finish_frame(output_base, &ts,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Immediate query didn't provide valid timestamp.
|
|
* Use pageflip fallback.
|
|
*/
|
|
|
|
assert(!output->page_flip_pending);
|
|
assert(!output->state_last);
|
|
|
|
pending_state = drm_pending_state_alloc(backend);
|
|
drm_output_state_duplicate(output->state_cur, pending_state,
|
|
DRM_OUTPUT_STATE_PRESERVE_PLANES);
|
|
|
|
ret = drm_pending_state_apply(pending_state);
|
|
if (ret != 0) {
|
|
weston_log("applying repaint-start state failed: %s\n",
|
|
strerror(errno));
|
|
if (ret == -EACCES)
|
|
return -1;
|
|
goto finish_frame;
|
|
}
|
|
|
|
return 0;
|
|
|
|
finish_frame:
|
|
/* if we cannot page-flip, immediately finish frame */
|
|
weston_output_finish_frame(output_base, NULL,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Begin a new repaint cycle
|
|
*
|
|
* Called by the core compositor at the beginning of a repaint cycle. Creates
|
|
* a new pending_state structure to own any output state created by individual
|
|
* output repaint functions until the repaint is flushed or cancelled.
|
|
*/
|
|
static void *
|
|
drm_repaint_begin(struct weston_compositor *compositor)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *ret;
|
|
|
|
ret = drm_pending_state_alloc(b);
|
|
b->repaint_data = ret;
|
|
|
|
if (weston_log_scope_is_enabled(b->debug)) {
|
|
char *dbg = weston_compositor_print_scene_graph(compositor);
|
|
drm_debug(b, "[repaint] Beginning repaint; pending_state %p\n",
|
|
ret);
|
|
drm_debug(b, "%s", dbg);
|
|
free(dbg);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Flush a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint cycle has been completed
|
|
* and should be flushed. Frees the pending state, transitioning ownership
|
|
* of the output state from the pending state, to the update itself. When
|
|
* the update completes (see drm_output_update_complete), the output
|
|
* state will be freed.
|
|
*/
|
|
static int
|
|
drm_repaint_flush(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
int ret;
|
|
|
|
ret = drm_pending_state_apply(pending_state);
|
|
if (ret != 0)
|
|
weston_log("repaint-flush failed: %s\n", strerror(errno));
|
|
|
|
drm_debug(b, "[repaint] flushed pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
|
|
return (ret == -EACCES) ? -1 : 0;
|
|
}
|
|
|
|
/**
|
|
* Cancel a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint has finished, so the data
|
|
* held across the repaint cycle should be discarded.
|
|
*/
|
|
static void
|
|
drm_repaint_cancel(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
|
|
drm_pending_state_free(pending_state);
|
|
drm_debug(b, "[repaint] cancel pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
}
|
|
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b);
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output);
|
|
|
|
static int
|
|
drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_mode *drm_mode = drm_output_choose_mode(output, mode);
|
|
|
|
if (!drm_mode) {
|
|
weston_log("%s: invalid resolution %dx%d\n",
|
|
output_base->name, mode->width, mode->height);
|
|
return -1;
|
|
}
|
|
|
|
if (&drm_mode->base == output->base.current_mode)
|
|
return 0;
|
|
|
|
output->base.current_mode->flags = 0;
|
|
|
|
output->base.current_mode = &drm_mode->base;
|
|
output->base.current_mode->flags =
|
|
WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
|
|
|
|
/* XXX: This drops our current buffer too early, before we've started
|
|
* displaying it. Ideally this should be much more atomic and
|
|
* integrated with a full repaint cycle, rather than doing a
|
|
* sledgehammer modeswitch first, and only later showing new
|
|
* content.
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
if (b->use_pixman) {
|
|
drm_output_fini_pixman(output);
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("failed to init output pixman state with "
|
|
"new mode\n");
|
|
return -1;
|
|
}
|
|
} else {
|
|
drm_output_fini_egl(output);
|
|
if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("failed to init output egl state with "
|
|
"new mode");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_pixman(struct drm_backend *b)
|
|
{
|
|
return pixman_renderer_init(b->compositor);
|
|
}
|
|
|
|
/**
|
|
* Create a drm_plane for a hardware plane
|
|
*
|
|
* Creates one drm_plane structure for a hardware plane, and initialises its
|
|
* properties and formats.
|
|
*
|
|
* This function does not add the plane to the list of usable planes in Weston
|
|
* itself; the caller is responsible for this.
|
|
*
|
|
* Call drm_plane_destroy to clean up the plane.
|
|
*
|
|
* @sa drm_output_find_special_plane
|
|
* @param b DRM compositor backend
|
|
* @param kplane DRM plane to create
|
|
*/
|
|
static struct drm_plane *
|
|
drm_plane_create(struct drm_backend *b, const drmModePlane *kplane)
|
|
{
|
|
struct drm_plane *plane;
|
|
drmModeObjectProperties *props;
|
|
uint64_t *zpos_range_values;
|
|
|
|
plane = zalloc(sizeof(*plane));
|
|
if (!plane) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
plane->backend = b;
|
|
plane->state_cur = drm_plane_state_alloc(NULL, plane);
|
|
plane->state_cur->complete = true;
|
|
plane->possible_crtcs = kplane->possible_crtcs;
|
|
plane->plane_id = kplane->plane_id;
|
|
|
|
weston_drm_format_array_init(&plane->formats);
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, kplane->plane_id,
|
|
DRM_MODE_OBJECT_PLANE);
|
|
if (!props) {
|
|
weston_log("couldn't get plane properties\n");
|
|
goto err;
|
|
}
|
|
|
|
drm_property_info_populate(b, plane_props, plane->props,
|
|
WDRM_PLANE__COUNT, props);
|
|
plane->type =
|
|
drm_property_get_value(&plane->props[WDRM_PLANE_TYPE],
|
|
props,
|
|
WDRM_PLANE_TYPE__COUNT);
|
|
|
|
zpos_range_values =
|
|
drm_property_get_range_values(&plane->props[WDRM_PLANE_ZPOS],
|
|
props);
|
|
|
|
if (zpos_range_values) {
|
|
plane->zpos_min = zpos_range_values[0];
|
|
plane->zpos_max = zpos_range_values[1];
|
|
} else {
|
|
plane->zpos_min = DRM_PLANE_ZPOS_INVALID_PLANE;
|
|
plane->zpos_max = DRM_PLANE_ZPOS_INVALID_PLANE;
|
|
}
|
|
|
|
if (drm_plane_populate_formats(plane, kplane, props,
|
|
b->fb_modifiers) < 0) {
|
|
drmModeFreeObjectProperties(props);
|
|
goto err;
|
|
}
|
|
|
|
drmModeFreeObjectProperties(props);
|
|
|
|
if (plane->type == WDRM_PLANE_TYPE__COUNT)
|
|
goto err_props;
|
|
|
|
weston_plane_init(&plane->base, b->compositor, 0, 0);
|
|
wl_list_insert(&b->plane_list, &plane->link);
|
|
|
|
return plane;
|
|
|
|
err_props:
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
err:
|
|
weston_drm_format_array_fini(&plane->formats);
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
free(plane);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Find, or create, a special-purpose plane
|
|
*
|
|
* @param b DRM backend
|
|
* @param output Output to use for plane
|
|
* @param type Type of plane
|
|
*/
|
|
static struct drm_plane *
|
|
drm_output_find_special_plane(struct drm_backend *b, struct drm_output *output,
|
|
enum wdrm_plane_type type)
|
|
{
|
|
struct drm_plane *plane;
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
struct drm_output *tmp;
|
|
bool found_elsewhere = false;
|
|
|
|
if (plane->type != type)
|
|
continue;
|
|
if (!drm_plane_is_available(plane, output))
|
|
continue;
|
|
|
|
/* On some platforms, primary/cursor planes can roam
|
|
* between different CRTCs, so make sure we don't claim the
|
|
* same plane for two outputs. */
|
|
wl_list_for_each(tmp, &b->compositor->output_list, base.link) {
|
|
if (tmp->cursor_plane == plane ||
|
|
tmp->scanout_plane == plane) {
|
|
found_elsewhere = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found_elsewhere)
|
|
continue;
|
|
|
|
plane->possible_crtcs = (1 << output->crtc->pipe);
|
|
return plane;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Destroy one DRM plane
|
|
*
|
|
* Destroy a DRM plane, removing it from screen and releasing its retained
|
|
* buffers in the process. The counterpart to drm_plane_create.
|
|
*
|
|
* @param plane Plane to deallocate (will be freed)
|
|
*/
|
|
static void
|
|
drm_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
if (plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
drmModeSetPlane(plane->backend->drm.fd, plane->plane_id,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
weston_plane_release(&plane->base);
|
|
weston_drm_format_array_fini(&plane->formats);
|
|
wl_list_remove(&plane->link);
|
|
free(plane);
|
|
}
|
|
|
|
/**
|
|
* Initialise sprites (overlay planes)
|
|
*
|
|
* Walk the list of provided DRM planes, and add overlay planes.
|
|
*
|
|
* Call destroy_sprites to free these planes.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
create_sprites(struct drm_backend *b)
|
|
{
|
|
drmModePlaneRes *kplane_res;
|
|
drmModePlane *kplane;
|
|
struct drm_plane *drm_plane;
|
|
uint32_t i;
|
|
kplane_res = drmModeGetPlaneResources(b->drm.fd);
|
|
if (!kplane_res) {
|
|
weston_log("failed to get plane resources: %s\n",
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < kplane_res->count_planes; i++) {
|
|
kplane = drmModeGetPlane(b->drm.fd, kplane_res->planes[i]);
|
|
if (!kplane)
|
|
continue;
|
|
|
|
drm_plane = drm_plane_create(b, kplane);
|
|
drmModeFreePlane(kplane);
|
|
if (!drm_plane)
|
|
continue;
|
|
|
|
if (drm_plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&drm_plane->base,
|
|
&b->compositor->primary_plane);
|
|
}
|
|
|
|
drmModeFreePlaneResources(kplane_res);
|
|
}
|
|
|
|
/**
|
|
* Clean up sprites (overlay planes)
|
|
*
|
|
* The counterpart to create_sprites.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
destroy_sprites(struct drm_backend *b)
|
|
{
|
|
struct drm_plane *plane, *next;
|
|
|
|
wl_list_for_each_safe(plane, next, &b->plane_list, link)
|
|
drm_plane_destroy(plane);
|
|
}
|
|
|
|
/* returns a value between 0-255 range, where higher is brighter */
|
|
static uint32_t
|
|
drm_get_backlight(struct drm_head *head)
|
|
{
|
|
long brightness, max_brightness, norm;
|
|
|
|
brightness = backlight_get_brightness(head->backlight);
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* convert it on a scale of 0 to 255 */
|
|
norm = (brightness * 255)/(max_brightness);
|
|
|
|
return (uint32_t) norm;
|
|
}
|
|
|
|
/* values accepted are between 0-255 range */
|
|
static void
|
|
drm_set_backlight(struct weston_output *output_base, uint32_t value)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_head *head;
|
|
long max_brightness, new_brightness;
|
|
|
|
if (value > 255)
|
|
return;
|
|
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
if (!head->backlight)
|
|
return;
|
|
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* get denormalized value */
|
|
new_brightness = (value * max_brightness) / 255;
|
|
|
|
backlight_set_brightness(head->backlight, new_brightness);
|
|
}
|
|
}
|
|
|
|
static void
|
|
drm_output_init_backlight(struct drm_output *output)
|
|
{
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
|
|
output->base.set_backlight = NULL;
|
|
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->backlight) {
|
|
weston_log("Initialized backlight for head '%s', device %s\n",
|
|
head->base.name, head->backlight->path);
|
|
|
|
if (!output->base.set_backlight) {
|
|
output->base.set_backlight = drm_set_backlight;
|
|
output->base.backlight_current =
|
|
drm_get_backlight(head);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Power output on or off
|
|
*
|
|
* The DPMS/power level of an output is used to switch it on or off. This
|
|
* is DRM's hook for doing so, which can called either as part of repaint,
|
|
* or independently of the repaint loop.
|
|
*
|
|
* If we are called as part of repaint, we simply set the relevant bit in
|
|
* state and return.
|
|
*
|
|
* This function is never called on a virtual output.
|
|
*/
|
|
static void
|
|
drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_pending_state *pending_state = b->repaint_data;
|
|
struct drm_output_state *state;
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->state_cur->dpms == level)
|
|
return;
|
|
|
|
/* If we're being called during the repaint loop, then this is
|
|
* simple: discard any previously-generated state, and create a new
|
|
* state where we disable everything. When we come to flush, this
|
|
* will be applied.
|
|
*
|
|
* However, we need to be careful: we can be called whilst another
|
|
* output is in its repaint cycle (pending_state exists), but our
|
|
* output still has an incomplete state application outstanding.
|
|
* In that case, we need to wait until that completes. */
|
|
if (pending_state && !output->state_last) {
|
|
/* The repaint loop already sets DPMS on; we don't need to
|
|
* explicitly set it on here, as it will already happen
|
|
* whilst applying the repaint state. */
|
|
if (level == WESTON_DPMS_ON)
|
|
return;
|
|
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (state)
|
|
drm_output_state_free(state);
|
|
state = drm_output_get_disable_state(pending_state, output);
|
|
return;
|
|
}
|
|
|
|
/* As we throw everything away when disabling, just send us back through
|
|
* a repaint cycle. */
|
|
if (level == WESTON_DPMS_ON) {
|
|
if (output->dpms_off_pending)
|
|
output->dpms_off_pending = false;
|
|
weston_output_schedule_repaint(output_base);
|
|
return;
|
|
}
|
|
|
|
/* If we've already got a request in the pipeline, then we need to
|
|
* park our DPMS request until that request has quiesced. */
|
|
if (output->state_last) {
|
|
output->dpms_off_pending = true;
|
|
return;
|
|
}
|
|
|
|
pending_state = drm_pending_state_alloc(b);
|
|
drm_output_get_disable_state(pending_state, output);
|
|
ret = drm_pending_state_apply_sync(pending_state);
|
|
if (ret != 0)
|
|
weston_log("drm_set_dpms: couldn't disable output?\n");
|
|
}
|
|
|
|
static const char * const connector_type_names[] = {
|
|
[DRM_MODE_CONNECTOR_Unknown] = "Unknown",
|
|
[DRM_MODE_CONNECTOR_VGA] = "VGA",
|
|
[DRM_MODE_CONNECTOR_DVII] = "DVI-I",
|
|
[DRM_MODE_CONNECTOR_DVID] = "DVI-D",
|
|
[DRM_MODE_CONNECTOR_DVIA] = "DVI-A",
|
|
[DRM_MODE_CONNECTOR_Composite] = "Composite",
|
|
[DRM_MODE_CONNECTOR_SVIDEO] = "SVIDEO",
|
|
[DRM_MODE_CONNECTOR_LVDS] = "LVDS",
|
|
[DRM_MODE_CONNECTOR_Component] = "Component",
|
|
[DRM_MODE_CONNECTOR_9PinDIN] = "DIN",
|
|
[DRM_MODE_CONNECTOR_DisplayPort] = "DP",
|
|
[DRM_MODE_CONNECTOR_HDMIA] = "HDMI-A",
|
|
[DRM_MODE_CONNECTOR_HDMIB] = "HDMI-B",
|
|
[DRM_MODE_CONNECTOR_TV] = "TV",
|
|
[DRM_MODE_CONNECTOR_eDP] = "eDP",
|
|
[DRM_MODE_CONNECTOR_VIRTUAL] = "Virtual",
|
|
[DRM_MODE_CONNECTOR_DSI] = "DSI",
|
|
[DRM_MODE_CONNECTOR_DPI] = "DPI",
|
|
};
|
|
|
|
/** Create a name given a DRM connector
|
|
*
|
|
* \param con The DRM connector whose type and id form the name.
|
|
* \return A newly allocate string, or NULL on error. Must be free()'d
|
|
* after use.
|
|
*
|
|
* The name does not identify the DRM display device.
|
|
*/
|
|
static char *
|
|
make_connector_name(const drmModeConnector *con)
|
|
{
|
|
char *name;
|
|
const char *type_name = NULL;
|
|
int ret;
|
|
|
|
if (con->connector_type < ARRAY_LENGTH(connector_type_names))
|
|
type_name = connector_type_names[con->connector_type];
|
|
|
|
if (!type_name)
|
|
type_name = "UNNAMED";
|
|
|
|
ret = asprintf(&name, "%s-%d", type_name, con->connector_type_id);
|
|
if (ret < 0)
|
|
return NULL;
|
|
|
|
return name;
|
|
}
|
|
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
int w = output->base.current_mode->width;
|
|
int h = output->base.current_mode->height;
|
|
uint32_t format = output->gbm_format;
|
|
uint32_t pixman_format;
|
|
unsigned int i;
|
|
const struct pixman_renderer_output_options options = {
|
|
.use_shadow = b->use_pixman_shadow,
|
|
};
|
|
|
|
switch (format) {
|
|
case DRM_FORMAT_XRGB8888:
|
|
pixman_format = PIXMAN_x8r8g8b8;
|
|
break;
|
|
case DRM_FORMAT_RGB565:
|
|
pixman_format = PIXMAN_r5g6b5;
|
|
break;
|
|
default:
|
|
weston_log("Unsupported pixman format 0x%x\n", format);
|
|
return -1;
|
|
}
|
|
|
|
/* FIXME error checking */
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
output->dumb[i] = drm_fb_create_dumb(b, w, h, format);
|
|
if (!output->dumb[i])
|
|
goto err;
|
|
|
|
output->image[i] =
|
|
pixman_image_create_bits(pixman_format, w, h,
|
|
output->dumb[i]->map,
|
|
output->dumb[i]->strides[0]);
|
|
if (!output->image[i])
|
|
goto err;
|
|
}
|
|
|
|
if (pixman_renderer_output_create(&output->base, &options) < 0)
|
|
goto err;
|
|
|
|
weston_log("DRM: output %s %s shadow framebuffer.\n", output->base.name,
|
|
b->use_pixman_shadow ? "uses" : "does not use");
|
|
|
|
pixman_region32_init_rect(&output->previous_damage,
|
|
output->base.x, output->base.y, output->base.width, output->base.height);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
if (output->dumb[i])
|
|
drm_fb_unref(output->dumb[i]);
|
|
if (output->image[i])
|
|
pixman_image_unref(output->image[i]);
|
|
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
unsigned int i;
|
|
|
|
/* Destroying the Pixman surface will destroy all our buffers,
|
|
* regardless of refcount. Ensure we destroy them here. */
|
|
if (!b->shutting_down &&
|
|
output->scanout_plane->state_cur->fb &&
|
|
output->scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) {
|
|
drm_plane_reset_state(output->scanout_plane);
|
|
}
|
|
|
|
pixman_renderer_output_destroy(&output->base);
|
|
pixman_region32_fini(&output->previous_damage);
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
pixman_image_unref(output->image[i]);
|
|
drm_fb_unref(output->dumb[i]);
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
setup_output_seat_constraint(struct drm_backend *b,
|
|
struct weston_output *output,
|
|
const char *s)
|
|
{
|
|
if (strcmp(s, "") != 0) {
|
|
struct weston_pointer *pointer;
|
|
struct udev_seat *seat;
|
|
|
|
seat = udev_seat_get_named(&b->input, s);
|
|
if (!seat)
|
|
return;
|
|
|
|
seat->base.output = output;
|
|
|
|
pointer = weston_seat_get_pointer(&seat->base);
|
|
if (pointer)
|
|
weston_pointer_clamp(pointer,
|
|
&pointer->x,
|
|
&pointer->y);
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_attach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (wl_list_length(&output_base->head_list) >= MAX_CLONED_CONNECTORS)
|
|
return -1;
|
|
|
|
if (!output_base->enabled)
|
|
return 0;
|
|
|
|
/* XXX: ensure the configuration will work.
|
|
* This is actually impossible without major infrastructure
|
|
* work. */
|
|
|
|
/* Need to go through modeset to add connectors. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
/* XXX: Doing it globally, what guarantees another output's update
|
|
* will not clear the flag before this output is updated?
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_detach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (!output_base->enabled)
|
|
return;
|
|
|
|
/* Need to go through modeset to drop connectors that should no longer
|
|
* be driven. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
}
|
|
|
|
int
|
|
parse_gbm_format(const char *s, uint32_t default_value, uint32_t *gbm_format)
|
|
{
|
|
const struct pixel_format_info *pinfo;
|
|
|
|
if (s == NULL) {
|
|
*gbm_format = default_value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
pinfo = pixel_format_get_info_by_drm_name(s);
|
|
if (!pinfo) {
|
|
weston_log("fatal: unrecognized pixel format: %s\n", s);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* GBM formats and DRM formats are identical. */
|
|
*gbm_format = pinfo->format;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_head_read_current_setup(struct drm_head *head, struct drm_backend *backend)
|
|
{
|
|
int drm_fd = backend->drm.fd;
|
|
drmModeConnector *conn = head->connector.conn;
|
|
drmModeEncoder *encoder;
|
|
drmModeCrtc *crtc;
|
|
|
|
/* Get the current mode on the crtc that's currently driving
|
|
* this connector. */
|
|
encoder = drmModeGetEncoder(drm_fd, conn->encoder_id);
|
|
if (encoder != NULL) {
|
|
head->inherited_crtc_id = encoder->crtc_id;
|
|
|
|
crtc = drmModeGetCrtc(drm_fd, encoder->crtc_id);
|
|
drmModeFreeEncoder(encoder);
|
|
|
|
if (crtc == NULL)
|
|
return -1;
|
|
if (crtc->mode_valid)
|
|
head->inherited_mode = crtc->mode;
|
|
drmModeFreeCrtc(crtc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_gbm_format(struct weston_output *base,
|
|
const char *gbm_format)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (parse_gbm_format(gbm_format, b->gbm_format, &output->gbm_format) == -1)
|
|
output->gbm_format = b->gbm_format;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_seat(struct weston_output *base,
|
|
const char *seat)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
setup_output_seat_constraint(b, &output->base,
|
|
seat ? seat : "");
|
|
}
|
|
|
|
static int
|
|
drm_output_init_gamma_size(struct drm_output *output)
|
|
{
|
|
struct drm_backend *backend = to_drm_backend(output->base.compositor);
|
|
drmModeCrtc *crtc;
|
|
|
|
assert(output->base.compositor);
|
|
assert(output->crtc);
|
|
crtc = drmModeGetCrtc(backend->drm.fd, output->crtc->crtc_id);
|
|
if (!crtc)
|
|
return -1;
|
|
|
|
output->base.gamma_size = crtc->gamma_size;
|
|
|
|
drmModeFreeCrtc(crtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t
|
|
drm_connector_get_possible_crtcs_mask(struct drm_connector *connector)
|
|
{
|
|
uint32_t possible_crtcs = 0;
|
|
drmModeConnector *conn = connector->conn;
|
|
drmModeEncoder *encoder;
|
|
int i;
|
|
|
|
for (i = 0; i < conn->count_encoders; i++) {
|
|
encoder = drmModeGetEncoder(connector->backend->drm.fd,
|
|
conn->encoders[i]);
|
|
if (!encoder)
|
|
continue;
|
|
|
|
possible_crtcs |= encoder->possible_crtcs;
|
|
drmModeFreeEncoder(encoder);
|
|
}
|
|
|
|
return possible_crtcs;
|
|
}
|
|
|
|
/** Pick a CRTC that might be able to drive all attached connectors
|
|
*
|
|
* @param output The output whose attached heads to include.
|
|
* @return CRTC object to pick, or NULL on failure or not found.
|
|
*/
|
|
static struct drm_crtc *
|
|
drm_output_pick_crtc(struct drm_output *output)
|
|
{
|
|
struct drm_backend *backend;
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
struct drm_crtc *crtc;
|
|
struct drm_crtc *best_crtc = NULL;
|
|
struct drm_crtc *fallback_crtc = NULL;
|
|
struct drm_crtc *existing_crtc[32];
|
|
uint32_t possible_crtcs = 0xffffffff;
|
|
unsigned n = 0;
|
|
uint32_t crtc_id;
|
|
unsigned int i;
|
|
bool match;
|
|
|
|
backend = to_drm_backend(output->base.compositor);
|
|
|
|
/* This algorithm ignores drmModeEncoder::possible_clones restriction,
|
|
* because it is more often set wrong than not in the kernel. */
|
|
|
|
/* Accumulate a mask of possible crtcs and find existing routings. */
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
possible_crtcs &=
|
|
drm_connector_get_possible_crtcs_mask(&head->connector);
|
|
|
|
crtc_id = head->inherited_crtc_id;
|
|
if (crtc_id > 0 && n < ARRAY_LENGTH(existing_crtc))
|
|
existing_crtc[n++] = drm_crtc_find(backend, crtc_id);
|
|
}
|
|
|
|
/* Find a crtc that could drive each connector individually at least,
|
|
* and prefer existing routings. */
|
|
wl_list_for_each(crtc, &backend->crtc_list, link) {
|
|
|
|
/* Could the crtc not drive each connector? */
|
|
if (!(possible_crtcs & (1 << crtc->pipe)))
|
|
continue;
|
|
|
|
/* Is the crtc already in use? */
|
|
if (crtc->output)
|
|
continue;
|
|
|
|
/* Try to preserve the existing CRTC -> connector routing;
|
|
* it makes initialisation faster, and also since we have a
|
|
* very dumb picking algorithm, may preserve a better
|
|
* choice. */
|
|
for (i = 0; i < n; i++) {
|
|
if (existing_crtc[i] == crtc)
|
|
return crtc;
|
|
}
|
|
|
|
/* Check if any other head had existing routing to this CRTC.
|
|
* If they did, this is not the best CRTC as it might be needed
|
|
* for another output we haven't enabled yet. */
|
|
match = false;
|
|
wl_list_for_each(base, &backend->compositor->head_list,
|
|
compositor_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->base.output == &output->base)
|
|
continue;
|
|
|
|
if (weston_head_is_enabled(&head->base))
|
|
continue;
|
|
|
|
if (head->inherited_crtc_id == crtc->crtc_id) {
|
|
match = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!match)
|
|
best_crtc = crtc;
|
|
|
|
fallback_crtc = crtc;
|
|
}
|
|
|
|
if (best_crtc)
|
|
return best_crtc;
|
|
|
|
if (fallback_crtc)
|
|
return fallback_crtc;
|
|
|
|
/* Likely possible_crtcs was empty due to asking for clones,
|
|
* but since the DRM documentation says the kernel lies, let's
|
|
* pick one crtc anyway. Trial and error is the only way to
|
|
* be sure if something doesn't work. */
|
|
|
|
/* First pick any existing assignment. */
|
|
for (i = 0; i < n; i++) {
|
|
crtc = existing_crtc[i];
|
|
if (!crtc->output)
|
|
return crtc;
|
|
}
|
|
|
|
/* Otherwise pick any available crtc. */
|
|
wl_list_for_each(crtc, &backend->crtc_list, link) {
|
|
if (!crtc->output)
|
|
return crtc;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/** Create an "empty" drm_crtc. It will only set its ID, pipe and props. After
|
|
* all, it adds the object to the DRM-backend CRTC list.
|
|
*/
|
|
static struct drm_crtc *
|
|
drm_crtc_create(struct drm_backend *b, uint32_t crtc_id, uint32_t pipe)
|
|
{
|
|
struct drm_crtc *crtc;
|
|
drmModeObjectPropertiesPtr props;
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, crtc_id,
|
|
DRM_MODE_OBJECT_CRTC);
|
|
if (!props) {
|
|
weston_log("failed to get CRTC properties\n");
|
|
return NULL;
|
|
}
|
|
|
|
crtc = zalloc(sizeof(*crtc));
|
|
if (!crtc)
|
|
goto ret;
|
|
|
|
drm_property_info_populate(b, crtc_props, crtc->props_crtc,
|
|
WDRM_CRTC__COUNT, props);
|
|
crtc->backend = b;
|
|
crtc->crtc_id = crtc_id;
|
|
crtc->pipe = pipe;
|
|
crtc->output = NULL;
|
|
|
|
/* Add it to the last position of the DRM-backend CRTC list */
|
|
wl_list_insert(b->crtc_list.prev, &crtc->link);
|
|
|
|
ret:
|
|
drmModeFreeObjectProperties(props);
|
|
return crtc;
|
|
}
|
|
|
|
/** Destroy a drm_crtc object that was created with drm_crtc_create(). It will
|
|
* also remove it from the DRM-backend CRTC list.
|
|
*/
|
|
static void
|
|
drm_crtc_destroy(struct drm_crtc *crtc)
|
|
{
|
|
/* TODO: address the issue below to be able to remove the comment
|
|
* from the assert.
|
|
*
|
|
* https://gitlab.freedesktop.org/wayland/weston/-/issues/421
|
|
*/
|
|
|
|
//assert(!crtc->output);
|
|
|
|
wl_list_remove(&crtc->link);
|
|
drm_property_info_free(crtc->props_crtc, WDRM_CRTC__COUNT);
|
|
free(crtc);
|
|
}
|
|
|
|
/** Find all CRTCs of the fd and create drm_crtc objects for them.
|
|
*
|
|
* The CRTCs are saved in a list of the drm_backend and will keep there until
|
|
* the fd gets closed.
|
|
*
|
|
* @param b The DRM-backend structure.
|
|
* @param resources The DRM resources, it is taken with drmModeGetResources
|
|
* @return 0 on success (at least one CRTC in the list), -1 on failure.
|
|
*/
|
|
static int
|
|
drm_backend_create_crtc_list(struct drm_backend *b, drmModeRes *resources)
|
|
{
|
|
struct drm_crtc *crtc, *crtc_tmp;
|
|
int i;
|
|
|
|
/* Iterate through all CRTCs */
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
|
|
/* Let's create an object for the CRTC and add it to the list */
|
|
crtc = drm_crtc_create(b, resources->crtcs[i], i);
|
|
if (!crtc)
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
wl_list_for_each_safe(crtc, crtc_tmp, &b->crtc_list, link)
|
|
drm_crtc_destroy(crtc);
|
|
return -1;
|
|
}
|
|
|
|
|
|
/** Populates scanout and cursor planes for the output. Also sets the topology
|
|
* of the planes by adding them to the plane stacking list.
|
|
*/
|
|
static int
|
|
drm_output_init_planes(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
|
|
output->scanout_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_PRIMARY);
|
|
if (!output->scanout_plane) {
|
|
weston_log("Failed to find primary plane for output %s\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->scanout_plane->base,
|
|
&b->compositor->primary_plane);
|
|
|
|
/* Failing to find a cursor plane is not fatal, as we'll fall back
|
|
* to software cursor. */
|
|
output->cursor_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_CURSOR);
|
|
|
|
if (output->cursor_plane)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->cursor_plane->base,
|
|
NULL);
|
|
else
|
|
b->cursors_are_broken = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** The opposite of drm_output_init_planes(). First of all it removes the planes
|
|
* from the plane stacking list. After all it sets the planes of the output as NULL.
|
|
*/
|
|
static void
|
|
drm_output_deinit_planes(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
|
|
/* If the compositor is already shutting down, the planes have already
|
|
* been destroyed. */
|
|
if (!b->shutting_down) {
|
|
wl_list_remove(&output->scanout_plane->base.link);
|
|
wl_list_init(&output->scanout_plane->base.link);
|
|
|
|
if (output->cursor_plane) {
|
|
wl_list_remove(&output->cursor_plane->base.link);
|
|
wl_list_init(&output->cursor_plane->base.link);
|
|
/* Turn off hardware cursor */
|
|
drmModeSetCursor(b->drm.fd, output->crtc->crtc_id, 0, 0, 0);
|
|
}
|
|
|
|
/* With universal planes, the planes are allocated at startup,
|
|
* freed at shutdown, and live on the plane list in between.
|
|
* We want the planes to continue to exist and be freed up
|
|
* for other outputs.
|
|
*/
|
|
if (output->cursor_plane)
|
|
drm_plane_reset_state(output->cursor_plane);
|
|
if (output->scanout_plane)
|
|
drm_plane_reset_state(output->scanout_plane);
|
|
}
|
|
|
|
output->cursor_plane = NULL;
|
|
output->scanout_plane = NULL;
|
|
}
|
|
|
|
static struct weston_drm_format_array *
|
|
get_scanout_formats(struct drm_backend *b)
|
|
{
|
|
struct weston_compositor *ec = b->compositor;
|
|
const struct weston_drm_format_array *renderer_formats;
|
|
struct weston_drm_format_array *scanout_formats, union_planes_formats;
|
|
struct drm_plane *plane;
|
|
int ret;
|
|
|
|
/* If we got here it means that dma-buf feedback is supported and that
|
|
* the renderer has formats/modifiers to expose. */
|
|
assert(ec->renderer->get_supported_formats != NULL);
|
|
renderer_formats = ec->renderer->get_supported_formats(ec);
|
|
|
|
scanout_formats = zalloc(sizeof(*scanout_formats));
|
|
if (!scanout_formats) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
weston_drm_format_array_init(&union_planes_formats);
|
|
weston_drm_format_array_init(scanout_formats);
|
|
|
|
/* Compute the union of the format/modifiers of the KMS planes */
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
/* The scanout formats are used by the dma-buf feedback. But for
|
|
* now cursor planes do not support dma-buf buffers, only wl_shm
|
|
* buffers. So we skip cursor planes here. */
|
|
if (plane->type == WDRM_PLANE_TYPE_CURSOR)
|
|
continue;
|
|
|
|
ret = weston_drm_format_array_join(&union_planes_formats,
|
|
&plane->formats);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
/* Compute the intersection between the union of format/modifiers of KMS
|
|
* planes and the formats supported by the renderer */
|
|
ret = weston_drm_format_array_replace(scanout_formats,
|
|
renderer_formats);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
ret = weston_drm_format_array_intersect(scanout_formats,
|
|
&union_planes_formats);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
weston_drm_format_array_fini(&union_planes_formats);
|
|
|
|
return scanout_formats;
|
|
|
|
err:
|
|
weston_drm_format_array_fini(&union_planes_formats);
|
|
weston_drm_format_array_fini(scanout_formats);
|
|
free(scanout_formats);
|
|
return NULL;
|
|
}
|
|
|
|
/** Pick a CRTC and reserve it for the output.
|
|
*
|
|
* On failure, the output remains without a CRTC.
|
|
*
|
|
* @param output The output with no CRTC associated.
|
|
* @return 0 on success, -1 on failure.
|
|
*/
|
|
static int
|
|
drm_output_attach_crtc(struct drm_output *output)
|
|
{
|
|
output->crtc = drm_output_pick_crtc(output);
|
|
if (!output->crtc) {
|
|
weston_log("Output '%s': No available CRTCs.\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
/* Reserve the CRTC for the output */
|
|
output->crtc->output = output;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Release reservation of the CRTC.
|
|
*
|
|
* Make the CRTC free to be reserved and used by another output.
|
|
*
|
|
* @param output The output that will release its CRTC.
|
|
*/
|
|
static void
|
|
drm_output_detach_crtc(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = output->backend;
|
|
struct drm_crtc *crtc = output->crtc;
|
|
|
|
crtc->output = NULL;
|
|
output->crtc = NULL;
|
|
|
|
/* Force resetting unused CRTCs */
|
|
b->state_invalid = true;
|
|
}
|
|
|
|
static int
|
|
drm_output_enable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
ret = drm_output_attach_crtc(output);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
ret = drm_output_init_planes(output);
|
|
if (ret < 0)
|
|
goto err_crtc;
|
|
|
|
if (drm_output_init_gamma_size(output) < 0)
|
|
goto err_planes;
|
|
|
|
if (b->pageflip_timeout)
|
|
drm_output_pageflip_timer_create(output);
|
|
|
|
if (b->use_pixman) {
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("Failed to init output pixman state\n");
|
|
goto err_planes;
|
|
}
|
|
} else if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("Failed to init output gl state\n");
|
|
goto err_planes;
|
|
}
|
|
|
|
drm_output_init_backlight(output);
|
|
|
|
output->base.start_repaint_loop = drm_output_start_repaint_loop;
|
|
output->base.repaint = drm_output_repaint;
|
|
output->base.assign_planes = drm_assign_planes;
|
|
output->base.set_dpms = drm_set_dpms;
|
|
output->base.switch_mode = drm_output_switch_mode;
|
|
output->base.set_gamma = drm_output_set_gamma;
|
|
|
|
weston_log("Output %s (crtc %d) video modes:\n",
|
|
output->base.name, output->crtc->crtc_id);
|
|
drm_output_print_modes(output);
|
|
|
|
return 0;
|
|
|
|
err_planes:
|
|
drm_output_deinit_planes(output);
|
|
err_crtc:
|
|
drm_output_detach_crtc(output);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_deinit(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (b->use_pixman)
|
|
drm_output_fini_pixman(output);
|
|
else
|
|
drm_output_fini_egl(output);
|
|
|
|
drm_output_deinit_planes(output);
|
|
drm_output_detach_crtc(output);
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head);
|
|
|
|
static void
|
|
drm_output_destroy(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->atomic_complete_pending) {
|
|
output->destroy_pending = true;
|
|
weston_log("destroy output while page flip pending\n");
|
|
return;
|
|
}
|
|
|
|
drm_output_set_cursor_view(output, NULL);
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
drm_mode_list_destroy(b, &output->base.mode_list);
|
|
|
|
if (output->pageflip_timer)
|
|
wl_event_source_remove(output->pageflip_timer);
|
|
|
|
weston_output_release(&output->base);
|
|
|
|
assert(!output->state_last);
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
free(output);
|
|
}
|
|
|
|
static int
|
|
drm_output_disable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->atomic_complete_pending) {
|
|
output->disable_pending = true;
|
|
return -1;
|
|
}
|
|
|
|
weston_log("Disabling output %s\n", output->base.name);
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
output->disable_pending = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function converts the protection status from drm values to
|
|
* weston_hdcp_protection status. The drm values as read from the connector
|
|
* properties "Content Protection" and "HDCP Content Type" need to be converted
|
|
* to appropriate weston values, that can be sent to a client application.
|
|
*/
|
|
static int
|
|
get_weston_protection_from_drm(enum wdrm_content_protection_state protection,
|
|
enum wdrm_hdcp_content_type type,
|
|
enum weston_hdcp_protection *weston_protection)
|
|
|
|
{
|
|
if (protection >= WDRM_CONTENT_PROTECTION__COUNT)
|
|
return -1;
|
|
if (protection == WDRM_CONTENT_PROTECTION_DESIRED ||
|
|
protection == WDRM_CONTENT_PROTECTION_UNDESIRED) {
|
|
*weston_protection = WESTON_HDCP_DISABLE;
|
|
return 0;
|
|
}
|
|
if (type >= WDRM_HDCP_CONTENT_TYPE__COUNT)
|
|
return -1;
|
|
if (type == WDRM_HDCP_CONTENT_TYPE0) {
|
|
*weston_protection = WESTON_HDCP_ENABLE_TYPE_0;
|
|
return 0;
|
|
}
|
|
if (type == WDRM_HDCP_CONTENT_TYPE1) {
|
|
*weston_protection = WESTON_HDCP_ENABLE_TYPE_1;
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* Get current content-protection status for a given head.
|
|
*
|
|
* @param head drm_head, whose protection is to be retrieved
|
|
* @return protection status in case of success, -1 otherwise
|
|
*/
|
|
static enum weston_hdcp_protection
|
|
drm_head_get_current_protection(struct drm_head *head)
|
|
{
|
|
drmModeObjectProperties *props = head->connector.props_drm;
|
|
struct drm_property_info *info;
|
|
enum wdrm_content_protection_state protection;
|
|
enum wdrm_hdcp_content_type type;
|
|
enum weston_hdcp_protection weston_hdcp = WESTON_HDCP_DISABLE;
|
|
|
|
info = &head->connector.props[WDRM_CONNECTOR_CONTENT_PROTECTION];
|
|
protection = drm_property_get_value(info, props,
|
|
WDRM_CONTENT_PROTECTION__COUNT);
|
|
|
|
if (protection == WDRM_CONTENT_PROTECTION__COUNT)
|
|
return WESTON_HDCP_DISABLE;
|
|
|
|
info = &head->connector.props[WDRM_CONNECTOR_HDCP_CONTENT_TYPE];
|
|
type = drm_property_get_value(info, props,
|
|
WDRM_HDCP_CONTENT_TYPE__COUNT);
|
|
|
|
/*
|
|
* In case of platforms supporting HDCP1.4, only property
|
|
* 'Content Protection' is exposed and not the 'HDCP Content Type'
|
|
* for such cases HDCP Type 0 should be considered as the content-type.
|
|
*/
|
|
|
|
if (type == WDRM_HDCP_CONTENT_TYPE__COUNT)
|
|
type = WDRM_HDCP_CONTENT_TYPE0;
|
|
|
|
if (get_weston_protection_from_drm(protection, type,
|
|
&weston_hdcp) == -1) {
|
|
weston_log("Invalid drm protection:%d type:%d, for head:%s connector-id:%d\n",
|
|
protection, type, head->base.name,
|
|
head->connector.connector_id);
|
|
return WESTON_HDCP_DISABLE;
|
|
}
|
|
|
|
return weston_hdcp;
|
|
}
|
|
|
|
static int
|
|
drm_connector_update_properties(struct drm_connector *connector)
|
|
{
|
|
drmModeObjectProperties *props;
|
|
|
|
props = drmModeObjectGetProperties(connector->backend->drm.fd,
|
|
connector->connector_id,
|
|
DRM_MODE_OBJECT_CONNECTOR);
|
|
if (!props) {
|
|
weston_log("Error: failed to get connector properties\n");
|
|
return -1;
|
|
}
|
|
|
|
if (connector->props_drm)
|
|
drmModeFreeObjectProperties(connector->props_drm);
|
|
connector->props_drm = props;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Replace connector data and monitor information
|
|
*
|
|
* @param connector The drm_connector object to be updated.
|
|
* @param conn The connector data to be owned by the drm_connector, must match
|
|
* the current drm_connector ID.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*/
|
|
static int
|
|
drm_connector_assign_connector_info(struct drm_connector *connector,
|
|
drmModeConnector *conn)
|
|
{
|
|
assert(connector->conn != conn);
|
|
assert(connector->connector_id == conn->connector_id);
|
|
|
|
if (drm_connector_update_properties(connector) < 0)
|
|
return -1;
|
|
|
|
if (connector->conn)
|
|
drmModeFreeConnector(connector->conn);
|
|
connector->conn = conn;
|
|
|
|
drm_property_info_free(connector->props, WDRM_CONNECTOR__COUNT);
|
|
drm_property_info_populate(connector->backend, connector_props,
|
|
connector->props,
|
|
WDRM_CONNECTOR__COUNT, connector->props_drm);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_connector_init(struct drm_backend *b, struct drm_connector *connector,
|
|
uint32_t connector_id)
|
|
{
|
|
connector->backend = b;
|
|
connector->connector_id = connector_id;
|
|
connector->conn = NULL;
|
|
connector->props_drm = NULL;
|
|
}
|
|
|
|
static void
|
|
drm_connector_fini(struct drm_connector *connector)
|
|
{
|
|
drmModeFreeConnector(connector->conn);
|
|
drmModeFreeObjectProperties(connector->props_drm);
|
|
drm_property_info_free(connector->props, WDRM_CONNECTOR__COUNT);
|
|
}
|
|
|
|
static void
|
|
drm_head_log_info(struct drm_head *head, const char *msg)
|
|
{
|
|
if (head->base.connected) {
|
|
weston_log("DRM: head '%s' %s, connector %d is connected, "
|
|
"EDID make '%s', model '%s', serial '%s'\n",
|
|
head->base.name, msg, head->connector.connector_id,
|
|
head->base.make, head->base.model,
|
|
head->base.serial_number ?: "");
|
|
} else {
|
|
weston_log("DRM: head '%s' %s, connector %d is disconnected.\n",
|
|
head->base.name, msg, head->connector.connector_id);
|
|
}
|
|
}
|
|
|
|
/** Update connector and monitor information
|
|
*
|
|
* @param head The head to update.
|
|
* @param conn The DRM connector object.
|
|
* @returns 0 on success, -1 on failure.
|
|
*
|
|
* Updates monitor information and connection status. This may schedule a
|
|
* heads changed call to the user.
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*/
|
|
static int
|
|
drm_head_update_info(struct drm_head *head, drmModeConnector *conn)
|
|
{
|
|
int ret;
|
|
|
|
ret = drm_connector_assign_connector_info(&head->connector, conn);
|
|
|
|
update_head_from_connector(head);
|
|
weston_head_set_content_protection_status(&head->base,
|
|
drm_head_get_current_protection(head));
|
|
|
|
if (head->base.device_changed)
|
|
drm_head_log_info(head, "updated");
|
|
|
|
return ret;
|
|
}
|
|
|
|
/** Update writeback connector
|
|
*
|
|
* @param writeback The writeback to update.
|
|
* @param conn DRM connector object.
|
|
* @returns 0 on success, -1 on failure.
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*/
|
|
static int
|
|
drm_writeback_update_info(struct drm_writeback *writeback, drmModeConnector *conn)
|
|
{
|
|
int ret;
|
|
|
|
ret = drm_connector_assign_connector_info(&writeback->connector, conn);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Create a Weston head for a connector
|
|
*
|
|
* Given a DRM connector, create a matching drm_head structure and add it
|
|
* to Weston's head list.
|
|
*
|
|
* @param backend Weston backend structure
|
|
* @param conn DRM connector object
|
|
* @param drm_device udev device pointer
|
|
* @returns 0 on success, -1 on failure
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*/
|
|
static int
|
|
drm_head_create(struct drm_backend *backend, drmModeConnector *conn,
|
|
struct udev_device *drm_device)
|
|
{
|
|
struct drm_head *head;
|
|
char *name;
|
|
int ret;
|
|
|
|
head = zalloc(sizeof *head);
|
|
if (!head)
|
|
return -1;
|
|
|
|
head->backend = backend;
|
|
|
|
drm_connector_init(backend, &head->connector, conn->connector_id);
|
|
|
|
name = make_connector_name(conn);
|
|
if (!name)
|
|
goto err;
|
|
|
|
weston_head_init(&head->base, name);
|
|
free(name);
|
|
|
|
ret = drm_head_update_info(head, conn);
|
|
if (ret < 0)
|
|
goto err_update;
|
|
|
|
head->backlight = backlight_init(drm_device, conn->connector_type);
|
|
|
|
if (conn->connector_type == DRM_MODE_CONNECTOR_LVDS ||
|
|
conn->connector_type == DRM_MODE_CONNECTOR_eDP)
|
|
weston_head_set_internal(&head->base);
|
|
|
|
if (drm_head_read_current_setup(head, backend) < 0) {
|
|
weston_log("Failed to retrieve current mode from connector %d.\n",
|
|
head->connector.connector_id);
|
|
/* Not fatal. */
|
|
}
|
|
|
|
weston_compositor_add_head(backend->compositor, &head->base);
|
|
drm_head_log_info(head, "found");
|
|
|
|
return 0;
|
|
|
|
err_update:
|
|
weston_head_release(&head->base);
|
|
err:
|
|
drm_connector_fini(&head->connector);
|
|
free(head);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head)
|
|
{
|
|
weston_head_release(&head->base);
|
|
|
|
drm_connector_fini(&head->connector);
|
|
|
|
if (head->backlight)
|
|
backlight_destroy(head->backlight);
|
|
|
|
free(head);
|
|
}
|
|
|
|
/**
|
|
* Create a Weston output structure
|
|
*
|
|
* Create an "empty" drm_output. This is the implementation of
|
|
* weston_backend::create_output.
|
|
*
|
|
* Creating an output is usually followed by drm_output_attach_head()
|
|
* and drm_output_enable() to make use of it.
|
|
*
|
|
* @param compositor The compositor instance.
|
|
* @param name Name for the new output.
|
|
* @returns The output, or NULL on failure.
|
|
*/
|
|
static struct weston_output *
|
|
drm_output_create(struct weston_compositor *compositor, const char *name)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_output *output;
|
|
|
|
output = zalloc(sizeof *output);
|
|
if (output == NULL)
|
|
return NULL;
|
|
|
|
output->backend = b;
|
|
output->crtc = NULL;
|
|
|
|
#ifdef BUILD_DRM_GBM
|
|
output->gbm_bo_flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
|
|
#endif
|
|
|
|
weston_output_init(&output->base, compositor, name);
|
|
|
|
output->base.enable = drm_output_enable;
|
|
output->base.destroy = drm_output_destroy;
|
|
output->base.disable = drm_output_disable;
|
|
output->base.attach_head = drm_output_attach_head;
|
|
output->base.detach_head = drm_output_detach_head;
|
|
|
|
output->destroy_pending = false;
|
|
output->disable_pending = false;
|
|
|
|
output->state_cur = drm_output_state_alloc(output, NULL);
|
|
|
|
weston_compositor_add_pending_output(&output->base, b->compositor);
|
|
|
|
return &output->base;
|
|
}
|
|
|
|
/**
|
|
* Create a Weston writeback for a writeback connector
|
|
*
|
|
* Given a DRM connector of type writeback, create a matching drm_writeback
|
|
* structure and add it to Weston's writeback list.
|
|
*
|
|
* @param b Weston backend structure
|
|
* @param conn DRM connector object of type writeback
|
|
* @returns 0 on success, -1 on failure
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*/
|
|
static int
|
|
drm_writeback_create(struct drm_backend *b, drmModeConnector *conn)
|
|
{
|
|
struct drm_writeback *writeback;
|
|
int ret;
|
|
|
|
writeback = zalloc(sizeof *writeback);
|
|
assert(writeback);
|
|
|
|
writeback->backend = b;
|
|
|
|
drm_connector_init(b, &writeback->connector, conn->connector_id);
|
|
|
|
ret = drm_writeback_update_info(writeback, conn);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
wl_list_insert(&b->writeback_connector_list, &writeback->link);
|
|
return 0;
|
|
|
|
err:
|
|
drm_connector_fini(&writeback->connector);
|
|
free(writeback);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_writeback_destroy(struct drm_writeback *writeback)
|
|
{
|
|
drm_connector_fini(&writeback->connector);
|
|
wl_list_remove(&writeback->link);
|
|
|
|
free(writeback);
|
|
}
|
|
|
|
/** Given the DRM connector object of a connector, create drm_head or
|
|
* drm_writeback object (depending on the type of connector) for it.
|
|
*
|
|
* The object is then added to the DRM-backend list of heads or writebacks.
|
|
*
|
|
* @param b The DRM-backend structure
|
|
* @param conn The DRM connector object
|
|
* @param drm_device udev device pointer
|
|
* @return 0 on success, -1 on failure
|
|
*/
|
|
static int
|
|
drm_backend_add_connector(struct drm_backend *b, drmModeConnector *conn,
|
|
struct udev_device *drm_device)
|
|
{
|
|
int ret;
|
|
|
|
if (conn->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) {
|
|
ret = drm_writeback_create(b, conn);
|
|
if (ret < 0)
|
|
weston_log("DRM: failed to create writeback for connector %d.\n",
|
|
conn->connector_id);
|
|
} else {
|
|
ret = drm_head_create(b, conn, drm_device);
|
|
if (ret < 0)
|
|
weston_log("DRM: failed to create head for connector %d.\n",
|
|
conn->connector_id);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/** Find all connectors of the fd and create drm_head or drm_writeback objects
|
|
* (depending on the type of connector they are) for each of them
|
|
*
|
|
* These objects are added to the DRM-backend lists of heads and writebacks.
|
|
*
|
|
* @param b The DRM-backend structure
|
|
* @param drm_device udev device pointer
|
|
* @param resources The DRM resources, it is taken with drmModeGetResources
|
|
* @return 0 on success, -1 on failure
|
|
*/
|
|
static int
|
|
drm_backend_discover_connectors(struct drm_backend *b, struct udev_device *drm_device,
|
|
drmModeRes *resources)
|
|
{
|
|
drmModeConnector *conn;
|
|
int i, ret;
|
|
|
|
b->min_width = resources->min_width;
|
|
b->max_width = resources->max_width;
|
|
b->min_height = resources->min_height;
|
|
b->max_height = resources->max_height;
|
|
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
uint32_t connector_id = resources->connectors[i];
|
|
|
|
conn = drmModeGetConnector(b->drm.fd, connector_id);
|
|
if (!conn)
|
|
continue;
|
|
|
|
ret = drm_backend_add_connector(b, conn, drm_device);
|
|
if (ret < 0)
|
|
drmModeFreeConnector(conn);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool
|
|
resources_has_connector(drmModeRes *resources, uint32_t connector_id)
|
|
{
|
|
for (int i = 0; i < resources->count_connectors; i++) {
|
|
if (resources->connectors[i] == connector_id)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
drm_backend_update_connectors(struct drm_backend *b, struct udev_device *drm_device)
|
|
{
|
|
drmModeRes *resources;
|
|
drmModeConnector *conn;
|
|
struct weston_head *base, *base_next;
|
|
struct drm_head *head;
|
|
struct drm_writeback *writeback, *writeback_next;
|
|
uint32_t connector_id;
|
|
int i, ret;
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return;
|
|
}
|
|
|
|
/* collect new connectors that have appeared, e.g. MST */
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
connector_id = resources->connectors[i];
|
|
|
|
conn = drmModeGetConnector(b->drm.fd, connector_id);
|
|
if (!conn)
|
|
continue;
|
|
|
|
head = drm_head_find_by_connector(b, connector_id);
|
|
writeback = drm_writeback_find_by_connector(b, connector_id);
|
|
|
|
/* Connector can't be owned by both a head and a writeback, so
|
|
* one of the searches must fail. */
|
|
assert(head == NULL || writeback == NULL);
|
|
|
|
if (head)
|
|
ret = drm_head_update_info(head, conn);
|
|
else if (writeback)
|
|
ret = drm_writeback_update_info(writeback, conn);
|
|
else
|
|
ret = drm_backend_add_connector(b, conn, drm_device);
|
|
|
|
if (ret < 0)
|
|
drmModeFreeConnector(conn);
|
|
}
|
|
|
|
/* Destroy head objects of connectors (except writeback connectors) that
|
|
* have disappeared. */
|
|
wl_list_for_each_safe(base, base_next,
|
|
&b->compositor->head_list, compositor_link) {
|
|
head = to_drm_head(base);
|
|
connector_id = head->connector.connector_id;
|
|
|
|
if (resources_has_connector(resources, connector_id))
|
|
continue;
|
|
|
|
weston_log("DRM: head '%s' (connector %d) disappeared.\n",
|
|
head->base.name, connector_id);
|
|
drm_head_destroy(head);
|
|
}
|
|
|
|
/* Destroy writeback objects of writeback connectors that have
|
|
* disappeared. */
|
|
wl_list_for_each_safe(writeback, writeback_next,
|
|
&b->writeback_connector_list, link) {
|
|
connector_id = writeback->connector.connector_id;
|
|
|
|
if (resources_has_connector(resources, connector_id))
|
|
continue;
|
|
|
|
weston_log("DRM: writeback connector (connector %d) disappeared.\n",
|
|
connector_id);
|
|
drm_writeback_destroy(writeback);
|
|
}
|
|
|
|
drmModeFreeResources(resources);
|
|
}
|
|
|
|
static enum wdrm_connector_property
|
|
drm_connector_find_property_by_id(struct drm_connector *connector,
|
|
uint32_t property_id)
|
|
{
|
|
int i;
|
|
enum wdrm_connector_property prop = WDRM_CONNECTOR__COUNT;
|
|
|
|
if (!connector || !property_id)
|
|
return WDRM_CONNECTOR__COUNT;
|
|
|
|
for (i = 0; i < WDRM_CONNECTOR__COUNT; i++)
|
|
if (connector->props[i].prop_id == property_id) {
|
|
prop = (enum wdrm_connector_property) i;
|
|
break;
|
|
}
|
|
return prop;
|
|
}
|
|
|
|
static void
|
|
drm_backend_update_conn_props(struct drm_backend *b,
|
|
uint32_t connector_id,
|
|
uint32_t property_id)
|
|
{
|
|
struct drm_head *head;
|
|
enum wdrm_connector_property conn_prop;
|
|
|
|
head = drm_head_find_by_connector(b, connector_id);
|
|
if (!head) {
|
|
weston_log("DRM: failed to find head for connector id: %d.\n",
|
|
connector_id);
|
|
return;
|
|
}
|
|
|
|
conn_prop = drm_connector_find_property_by_id(&head->connector, property_id);
|
|
if (conn_prop >= WDRM_CONNECTOR__COUNT)
|
|
return;
|
|
|
|
if (drm_connector_update_properties(&head->connector) < 0)
|
|
return;
|
|
|
|
if (conn_prop == WDRM_CONNECTOR_CONTENT_PROTECTION) {
|
|
weston_head_set_content_protection_status(&head->base,
|
|
drm_head_get_current_protection(head));
|
|
}
|
|
}
|
|
|
|
static int
|
|
udev_event_is_hotplug(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *sysnum;
|
|
const char *val;
|
|
|
|
sysnum = udev_device_get_sysnum(device);
|
|
if (!sysnum || atoi(sysnum) != b->drm.id)
|
|
return 0;
|
|
|
|
val = udev_device_get_property_value(device, "HOTPLUG");
|
|
if (!val)
|
|
return 0;
|
|
|
|
return strcmp(val, "1") == 0;
|
|
}
|
|
|
|
static int
|
|
udev_event_is_conn_prop_change(struct drm_backend *b,
|
|
struct udev_device *device,
|
|
uint32_t *connector_id,
|
|
uint32_t *property_id)
|
|
|
|
{
|
|
const char *val;
|
|
int id;
|
|
|
|
val = udev_device_get_property_value(device, "CONNECTOR");
|
|
if (!val || !safe_strtoint(val, &id))
|
|
return 0;
|
|
else
|
|
*connector_id = id;
|
|
|
|
val = udev_device_get_property_value(device, "PROPERTY");
|
|
if (!val || !safe_strtoint(val, &id))
|
|
return 0;
|
|
else
|
|
*property_id = id;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
udev_drm_event(int fd, uint32_t mask, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct udev_device *event;
|
|
uint32_t conn_id, prop_id;
|
|
|
|
event = udev_monitor_receive_device(b->udev_monitor);
|
|
|
|
if (udev_event_is_hotplug(b, event)) {
|
|
if (udev_event_is_conn_prop_change(b, event, &conn_id, &prop_id))
|
|
drm_backend_update_conn_props(b, conn_id, prop_id);
|
|
else
|
|
drm_backend_update_connectors(b, event);
|
|
}
|
|
|
|
udev_device_unref(event);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
drm_destroy(struct weston_compositor *ec)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(ec);
|
|
struct weston_head *base, *next;
|
|
struct drm_crtc *crtc, *crtc_tmp;
|
|
struct drm_writeback *writeback, *writeback_tmp;
|
|
|
|
udev_input_destroy(&b->input);
|
|
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
wl_event_source_remove(b->drm_source);
|
|
|
|
b->shutting_down = true;
|
|
|
|
destroy_sprites(b);
|
|
|
|
weston_log_scope_destroy(b->debug);
|
|
b->debug = NULL;
|
|
weston_compositor_shutdown(ec);
|
|
|
|
wl_list_for_each_safe(crtc, crtc_tmp, &b->crtc_list, link)
|
|
drm_crtc_destroy(crtc);
|
|
|
|
wl_list_for_each_safe(base, next, &ec->head_list, compositor_link)
|
|
drm_head_destroy(to_drm_head(base));
|
|
|
|
wl_list_for_each_safe(writeback, writeback_tmp,
|
|
&b->writeback_connector_list, link)
|
|
drm_writeback_destroy(writeback);
|
|
|
|
#ifdef BUILD_DRM_GBM
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
#endif
|
|
|
|
udev_monitor_unref(b->udev_monitor);
|
|
udev_unref(b->udev);
|
|
|
|
weston_launcher_close(ec->launcher, b->drm.fd);
|
|
weston_launcher_destroy(ec->launcher);
|
|
|
|
free(b->drm.filename);
|
|
free(b);
|
|
}
|
|
|
|
static void
|
|
session_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct weston_compositor *compositor = data;
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_plane *plane;
|
|
struct drm_output *output;
|
|
struct drm_crtc *crtc;
|
|
|
|
if (compositor->session_active) {
|
|
weston_log("activating session\n");
|
|
weston_compositor_wake(compositor);
|
|
weston_compositor_damage_all(compositor);
|
|
b->state_invalid = true;
|
|
udev_input_enable(&b->input);
|
|
} else {
|
|
weston_log("deactivating session\n");
|
|
udev_input_disable(&b->input);
|
|
|
|
weston_compositor_offscreen(compositor);
|
|
|
|
/* If we have a repaint scheduled (either from a
|
|
* pending pageflip or the idle handler), make sure we
|
|
* cancel that so we don't try to pageflip when we're
|
|
* vt switched away. The OFFSCREEN state will prevent
|
|
* further attempts at repainting. When we switch
|
|
* back, we schedule a repaint, which will process
|
|
* pending frame callbacks. */
|
|
|
|
wl_list_for_each(output, &compositor->output_list, base.link) {
|
|
crtc = output->crtc;
|
|
output->base.repaint_needed = false;
|
|
if (output->cursor_plane)
|
|
drmModeSetCursor(b->drm.fd, crtc->crtc_id,
|
|
0, 0, 0);
|
|
}
|
|
|
|
output = container_of(compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
crtc = output->crtc;
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
if (plane->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
drmModeSetPlane(b->drm.fd, plane->plane_id, crtc->crtc_id,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Handle KMS GPU being added/removed
|
|
*
|
|
* If the device being added/removed is the KMS device, we activate/deactivate
|
|
* the compositor session.
|
|
*
|
|
* @param compositor The compositor instance.
|
|
* @param device The device being added/removed.
|
|
* @param added Whether the device is being added (or removed)
|
|
*/
|
|
static void
|
|
drm_device_changed(struct weston_compositor *compositor,
|
|
dev_t device, bool added)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
|
|
if (b->drm.fd < 0 || b->drm.devnum != device ||
|
|
compositor->session_active == added)
|
|
return;
|
|
|
|
compositor->session_active = added;
|
|
wl_signal_emit(&compositor->session_signal, compositor);
|
|
}
|
|
|
|
/**
|
|
* Determines whether or not a device is capable of modesetting. If successful,
|
|
* sets b->drm.fd and b->drm.filename to the opened device.
|
|
*/
|
|
static bool
|
|
drm_device_is_kms(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *filename = udev_device_get_devnode(device);
|
|
const char *sysnum = udev_device_get_sysnum(device);
|
|
dev_t devnum = udev_device_get_devnum(device);
|
|
drmModeRes *res;
|
|
int id = -1, fd;
|
|
|
|
if (!filename)
|
|
return false;
|
|
|
|
fd = weston_launcher_open(b->compositor->launcher, filename, O_RDWR);
|
|
if (fd < 0)
|
|
return false;
|
|
|
|
res = drmModeGetResources(fd);
|
|
if (!res)
|
|
goto out_fd;
|
|
|
|
if (res->count_crtcs <= 0 || res->count_connectors <= 0 ||
|
|
res->count_encoders <= 0)
|
|
goto out_res;
|
|
|
|
if (sysnum)
|
|
id = atoi(sysnum);
|
|
if (!sysnum || id < 0) {
|
|
weston_log("couldn't get sysnum for device %s\n", filename);
|
|
goto out_res;
|
|
}
|
|
|
|
/* We can be called successfully on multiple devices; if we have,
|
|
* clean up old entries. */
|
|
if (b->drm.fd >= 0)
|
|
weston_launcher_close(b->compositor->launcher, b->drm.fd);
|
|
free(b->drm.filename);
|
|
|
|
b->drm.fd = fd;
|
|
b->drm.id = id;
|
|
b->drm.filename = strdup(filename);
|
|
b->drm.devnum = devnum;
|
|
|
|
drmModeFreeResources(res);
|
|
|
|
return true;
|
|
|
|
out_res:
|
|
drmModeFreeResources(res);
|
|
out_fd:
|
|
weston_launcher_close(b->compositor->launcher, fd);
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Find primary GPU
|
|
* Some systems may have multiple DRM devices attached to a single seat. This
|
|
* function loops over all devices and tries to find a PCI device with the
|
|
* boot_vga sysfs attribute set to 1.
|
|
* If no such device is found, the first DRM device reported by udev is used.
|
|
* Devices are also vetted to make sure they are are capable of modesetting,
|
|
* rather than pure render nodes (GPU with no display), or pure
|
|
* memory-allocation devices (VGEM).
|
|
*/
|
|
static struct udev_device*
|
|
find_primary_gpu(struct drm_backend *b, const char *seat)
|
|
{
|
|
struct udev_enumerate *e;
|
|
struct udev_list_entry *entry;
|
|
const char *path, *device_seat, *id;
|
|
struct udev_device *device, *drm_device, *pci;
|
|
|
|
e = udev_enumerate_new(b->udev);
|
|
udev_enumerate_add_match_subsystem(e, "drm");
|
|
udev_enumerate_add_match_sysname(e, "card[0-9]*");
|
|
|
|
udev_enumerate_scan_devices(e);
|
|
drm_device = NULL;
|
|
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
|
|
bool is_boot_vga = false;
|
|
|
|
path = udev_list_entry_get_name(entry);
|
|
device = udev_device_new_from_syspath(b->udev, path);
|
|
if (!device)
|
|
continue;
|
|
device_seat = udev_device_get_property_value(device, "ID_SEAT");
|
|
if (!device_seat)
|
|
device_seat = default_seat;
|
|
if (strcmp(device_seat, seat)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
pci = udev_device_get_parent_with_subsystem_devtype(device,
|
|
"pci", NULL);
|
|
if (pci) {
|
|
id = udev_device_get_sysattr_value(pci, "boot_vga");
|
|
if (id && !strcmp(id, "1"))
|
|
is_boot_vga = true;
|
|
}
|
|
|
|
/* If we already have a modesetting-capable device, and this
|
|
* device isn't our boot-VGA device, we aren't going to use
|
|
* it. */
|
|
if (!is_boot_vga && drm_device) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* Make sure this device is actually capable of modesetting;
|
|
* if this call succeeds, b->drm.{fd,filename} will be set,
|
|
* and any old values freed. */
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* There can only be one boot_vga device, and we try to use it
|
|
* at all costs. */
|
|
if (is_boot_vga) {
|
|
if (drm_device)
|
|
udev_device_unref(drm_device);
|
|
drm_device = device;
|
|
break;
|
|
}
|
|
|
|
/* Per the (!is_boot_vga && drm_device) test above, we only
|
|
* trump existing saved devices with boot-VGA devices, so if
|
|
* we end up here, this must be the first device we've seen. */
|
|
assert(!drm_device);
|
|
drm_device = device;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(!!drm_device == (b->drm.fd >= 0));
|
|
|
|
udev_enumerate_unref(e);
|
|
return drm_device;
|
|
}
|
|
|
|
static struct udev_device *
|
|
open_specific_drm_device(struct drm_backend *b, const char *name)
|
|
{
|
|
struct udev_device *device;
|
|
|
|
device = udev_device_new_from_subsystem_sysname(b->udev, "drm", name);
|
|
if (!device) {
|
|
weston_log("ERROR: could not open DRM device '%s'\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
weston_log("ERROR: DRM device '%s' is not a KMS device.\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(b->drm.fd >= 0);
|
|
|
|
return device;
|
|
}
|
|
|
|
static void
|
|
planes_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
|
|
switch (key) {
|
|
case KEY_C:
|
|
b->cursors_are_broken ^= true;
|
|
break;
|
|
case KEY_V:
|
|
/* We don't support overlay-plane usage with legacy KMS. */
|
|
if (b->atomic_modeset)
|
|
b->sprites_are_broken ^= true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef BUILD_VAAPI_RECORDER
|
|
static void
|
|
recorder_destroy(struct drm_output *output)
|
|
{
|
|
vaapi_recorder_destroy(output->recorder);
|
|
output->recorder = NULL;
|
|
|
|
weston_output_disable_planes_decr(&output->base);
|
|
|
|
wl_list_remove(&output->recorder_frame_listener.link);
|
|
weston_log("[libva recorder] done\n");
|
|
}
|
|
|
|
static void
|
|
recorder_frame_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct drm_output *output;
|
|
struct drm_backend *b;
|
|
int fd, ret;
|
|
|
|
output = container_of(listener, struct drm_output,
|
|
recorder_frame_listener);
|
|
b = to_drm_backend(output->base.compositor);
|
|
|
|
if (!output->recorder)
|
|
return;
|
|
|
|
ret = drmPrimeHandleToFD(b->drm.fd,
|
|
output->scanout_plane->state_cur->fb->handles[0],
|
|
DRM_CLOEXEC, &fd);
|
|
if (ret) {
|
|
weston_log("[libva recorder] "
|
|
"failed to create prime fd for front buffer\n");
|
|
return;
|
|
}
|
|
|
|
ret = vaapi_recorder_frame(output->recorder, fd,
|
|
output->scanout_plane->state_cur->fb->strides[0]);
|
|
if (ret < 0) {
|
|
weston_log("[libva recorder] aborted: %s\n", strerror(errno));
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
|
|
static void *
|
|
create_recorder(struct drm_backend *b, int width, int height,
|
|
const char *filename)
|
|
{
|
|
int fd;
|
|
drm_magic_t magic;
|
|
|
|
fd = open(b->drm.filename, O_RDWR | O_CLOEXEC);
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
drmGetMagic(fd, &magic);
|
|
drmAuthMagic(b->drm.fd, magic);
|
|
|
|
return vaapi_recorder_create(fd, width, height, filename);
|
|
}
|
|
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct drm_output *output;
|
|
int width, height;
|
|
|
|
output = container_of(b->compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
|
|
if (!output->recorder) {
|
|
if (output->gbm_format != DRM_FORMAT_XRGB8888) {
|
|
weston_log("failed to start vaapi recorder: "
|
|
"output format not supported\n");
|
|
return;
|
|
}
|
|
|
|
width = output->base.current_mode->width;
|
|
height = output->base.current_mode->height;
|
|
|
|
output->recorder =
|
|
create_recorder(b, width, height, "capture.h264");
|
|
if (!output->recorder) {
|
|
weston_log("failed to create vaapi recorder\n");
|
|
return;
|
|
}
|
|
|
|
weston_output_disable_planes_incr(&output->base);
|
|
|
|
output->recorder_frame_listener.notify = recorder_frame_notify;
|
|
wl_signal_add(&output->base.frame_signal,
|
|
&output->recorder_frame_listener);
|
|
|
|
weston_output_schedule_repaint(&output->base);
|
|
|
|
weston_log("[libva recorder] initialized\n");
|
|
} else {
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
#else
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
weston_log("Compiled without libva support\n");
|
|
}
|
|
#endif
|
|
|
|
|
|
static const struct weston_drm_output_api api = {
|
|
drm_output_set_mode,
|
|
drm_output_set_gbm_format,
|
|
drm_output_set_seat,
|
|
};
|
|
|
|
static struct drm_backend *
|
|
drm_backend_create(struct weston_compositor *compositor,
|
|
struct weston_drm_backend_config *config)
|
|
{
|
|
struct drm_backend *b;
|
|
struct udev_device *drm_device;
|
|
struct wl_event_loop *loop;
|
|
const char *seat_id = default_seat;
|
|
const char *session_seat;
|
|
struct weston_drm_format_array *scanout_formats;
|
|
drmModeRes *res;
|
|
int ret;
|
|
|
|
session_seat = getenv("XDG_SEAT");
|
|
if (session_seat)
|
|
seat_id = session_seat;
|
|
|
|
if (config->seat_id)
|
|
seat_id = config->seat_id;
|
|
|
|
weston_log("initializing drm backend\n");
|
|
|
|
b = zalloc(sizeof *b);
|
|
if (b == NULL)
|
|
return NULL;
|
|
|
|
b->state_invalid = true;
|
|
b->drm.fd = -1;
|
|
|
|
b->compositor = compositor;
|
|
b->use_pixman = config->use_pixman;
|
|
b->pageflip_timeout = config->pageflip_timeout;
|
|
b->use_pixman_shadow = config->use_pixman_shadow;
|
|
|
|
b->debug = weston_compositor_add_log_scope(compositor, "drm-backend",
|
|
"Debug messages from DRM/KMS backend\n",
|
|
NULL, NULL, NULL);
|
|
|
|
compositor->backend = &b->base;
|
|
|
|
if (parse_gbm_format(config->gbm_format, DRM_FORMAT_XRGB8888, &b->gbm_format) < 0)
|
|
goto err_compositor;
|
|
|
|
/* Check if we run drm-backend using weston-launch */
|
|
compositor->launcher = weston_launcher_connect(compositor, config->tty,
|
|
seat_id, true);
|
|
if (compositor->launcher == NULL) {
|
|
weston_log("fatal: drm backend should be run using "
|
|
"weston-launch binary, or your system should "
|
|
"provide the logind D-Bus API.\n");
|
|
goto err_compositor;
|
|
}
|
|
|
|
b->udev = udev_new();
|
|
if (b->udev == NULL) {
|
|
weston_log("failed to initialize udev context\n");
|
|
goto err_launcher;
|
|
}
|
|
|
|
b->session_listener.notify = session_notify;
|
|
wl_signal_add(&compositor->session_signal, &b->session_listener);
|
|
|
|
if (config->specific_device)
|
|
drm_device = open_specific_drm_device(b, config->specific_device);
|
|
else
|
|
drm_device = find_primary_gpu(b, seat_id);
|
|
if (drm_device == NULL) {
|
|
weston_log("no drm device found\n");
|
|
goto err_udev;
|
|
}
|
|
|
|
if (init_kms_caps(b) < 0) {
|
|
weston_log("failed to initialize kms\n");
|
|
goto err_udev_dev;
|
|
}
|
|
|
|
if (b->use_pixman) {
|
|
if (init_pixman(b) < 0) {
|
|
weston_log("failed to initialize pixman renderer\n");
|
|
goto err_udev_dev;
|
|
}
|
|
} else {
|
|
if (init_egl(b) < 0) {
|
|
weston_log("failed to initialize egl\n");
|
|
goto err_udev_dev;
|
|
}
|
|
}
|
|
|
|
b->base.destroy = drm_destroy;
|
|
b->base.repaint_begin = drm_repaint_begin;
|
|
b->base.repaint_flush = drm_repaint_flush;
|
|
b->base.repaint_cancel = drm_repaint_cancel;
|
|
b->base.create_output = drm_output_create;
|
|
b->base.device_changed = drm_device_changed;
|
|
b->base.can_scanout_dmabuf = drm_can_scanout_dmabuf;
|
|
|
|
weston_setup_vt_switch_bindings(compositor);
|
|
|
|
res = drmModeGetResources(b->drm.fd);
|
|
if (!res) {
|
|
weston_log("Failed to get drmModeRes\n");
|
|
goto err_udev_dev;
|
|
}
|
|
|
|
wl_list_init(&b->crtc_list);
|
|
if (drm_backend_create_crtc_list(b, res) == -1) {
|
|
weston_log("Failed to create CRTC list for DRM-backend\n");
|
|
goto err_create_crtc_list;
|
|
}
|
|
|
|
wl_list_init(&b->plane_list);
|
|
create_sprites(b);
|
|
|
|
if (udev_input_init(&b->input,
|
|
compositor, b->udev, seat_id,
|
|
config->configure_device) < 0) {
|
|
weston_log("failed to create input devices\n");
|
|
goto err_sprite;
|
|
}
|
|
|
|
wl_list_init(&b->writeback_connector_list);
|
|
if (drm_backend_discover_connectors(b, drm_device, res) < 0) {
|
|
weston_log("Failed to create heads for %s\n", b->drm.filename);
|
|
goto err_udev_input;
|
|
}
|
|
|
|
drmModeFreeResources(res);
|
|
|
|
/* 'compute' faked zpos values in case HW doesn't expose any */
|
|
drm_backend_create_faked_zpos(b);
|
|
|
|
/* A this point we have some idea of whether or not we have a working
|
|
* cursor plane. */
|
|
if (!b->cursors_are_broken)
|
|
compositor->capabilities |= WESTON_CAP_CURSOR_PLANE;
|
|
|
|
loop = wl_display_get_event_loop(compositor->wl_display);
|
|
b->drm_source =
|
|
wl_event_loop_add_fd(loop, b->drm.fd,
|
|
WL_EVENT_READABLE, on_drm_input, b);
|
|
|
|
b->udev_monitor = udev_monitor_new_from_netlink(b->udev, "udev");
|
|
if (b->udev_monitor == NULL) {
|
|
weston_log("failed to initialize udev monitor\n");
|
|
goto err_drm_source;
|
|
}
|
|
udev_monitor_filter_add_match_subsystem_devtype(b->udev_monitor,
|
|
"drm", NULL);
|
|
b->udev_drm_source =
|
|
wl_event_loop_add_fd(loop,
|
|
udev_monitor_get_fd(b->udev_monitor),
|
|
WL_EVENT_READABLE, udev_drm_event, b);
|
|
|
|
if (udev_monitor_enable_receiving(b->udev_monitor) < 0) {
|
|
weston_log("failed to enable udev-monitor receiving\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
udev_device_unref(drm_device);
|
|
|
|
weston_compositor_add_debug_binding(compositor, KEY_O,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_C,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_V,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_Q,
|
|
recorder_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_W,
|
|
renderer_switch_binding, b);
|
|
|
|
if (compositor->renderer->import_dmabuf) {
|
|
if (linux_dmabuf_setup(compositor) < 0)
|
|
weston_log("Error: initializing dmabuf "
|
|
"support failed.\n");
|
|
if (compositor->default_dmabuf_feedback) {
|
|
/* We were able to create the compositor's default
|
|
* dma-buf feedback in the renderer, that means that the
|
|
* table was already created and populated with
|
|
* renderer's format/modifier pairs. So now we must
|
|
* compute the scanout formats indices in the table */
|
|
scanout_formats = get_scanout_formats(b);
|
|
if (!scanout_formats)
|
|
goto err_udev_monitor;
|
|
ret = weston_dmabuf_feedback_format_table_set_scanout_indices(compositor->dmabuf_feedback_format_table,
|
|
scanout_formats);
|
|
weston_drm_format_array_fini(scanout_formats);
|
|
free(scanout_formats);
|
|
if (ret < 0)
|
|
goto err_udev_monitor;
|
|
}
|
|
if (weston_direct_display_setup(compositor) < 0)
|
|
weston_log("Error: initializing direct-display "
|
|
"support failed.\n");
|
|
}
|
|
|
|
if (compositor->capabilities & WESTON_CAP_EXPLICIT_SYNC) {
|
|
if (linux_explicit_synchronization_setup(compositor) < 0)
|
|
weston_log("Error: initializing explicit "
|
|
" synchronization support failed.\n");
|
|
}
|
|
|
|
if (b->atomic_modeset)
|
|
if (weston_compositor_enable_content_protection(compositor) < 0)
|
|
weston_log("Error: initializing content-protection "
|
|
"support failed.\n");
|
|
|
|
ret = weston_plugin_api_register(compositor, WESTON_DRM_OUTPUT_API_NAME,
|
|
&api, sizeof(api));
|
|
|
|
if (ret < 0) {
|
|
weston_log("Failed to register output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
ret = drm_backend_init_virtual_output_api(compositor);
|
|
if (ret < 0) {
|
|
weston_log("Failed to register virtual output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
return b;
|
|
|
|
err_udev_monitor:
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
udev_monitor_unref(b->udev_monitor);
|
|
err_drm_source:
|
|
wl_event_source_remove(b->drm_source);
|
|
err_udev_input:
|
|
udev_input_destroy(&b->input);
|
|
err_sprite:
|
|
destroy_sprites(b);
|
|
err_create_crtc_list:
|
|
drmModeFreeResources(res);
|
|
err_udev_dev:
|
|
udev_device_unref(drm_device);
|
|
err_udev:
|
|
udev_unref(b->udev);
|
|
err_launcher:
|
|
weston_launcher_destroy(compositor->launcher);
|
|
err_compositor:
|
|
weston_compositor_shutdown(compositor);
|
|
#ifdef BUILD_DRM_GBM
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
#endif
|
|
free(b);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
config_init_to_defaults(struct weston_drm_backend_config *config)
|
|
{
|
|
config->use_pixman_shadow = true;
|
|
}
|
|
|
|
WL_EXPORT int
|
|
weston_backend_init(struct weston_compositor *compositor,
|
|
struct weston_backend_config *config_base)
|
|
{
|
|
struct drm_backend *b;
|
|
struct weston_drm_backend_config config = {{ 0, }};
|
|
|
|
if (config_base == NULL ||
|
|
config_base->struct_version != WESTON_DRM_BACKEND_CONFIG_VERSION ||
|
|
config_base->struct_size > sizeof(struct weston_drm_backend_config)) {
|
|
weston_log("drm backend config structure is invalid\n");
|
|
return -1;
|
|
}
|
|
|
|
config_init_to_defaults(&config);
|
|
memcpy(&config, config_base, config_base->struct_size);
|
|
|
|
b = drm_backend_create(compositor, &config);
|
|
if (b == NULL)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|