149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
/*
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* Copyright © 2019 Red Hat
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "macros.h"
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#include <wayland-client.h>
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#include "wayland-drm-client-protocol.h"
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#include "device_select.h"
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <xf86drm.h>
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struct device_select_wayland_info {
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struct wl_drm *wl_drm;
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drmDevicePtr dev_info;
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bool info_is_set;
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};
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static void
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device_select_drm_handle_device(void *data, struct wl_drm *drm, const char *device)
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{
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struct device_select_wayland_info *info = data;
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int fd = open(device, O_RDWR | O_CLOEXEC);
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if (fd == -1)
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return;
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int ret = drmGetDevice2(fd, 0, &info->dev_info);
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if (ret >= 0)
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info->info_is_set = true;
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close(fd);
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return;
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}
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static void
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device_select_drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
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{
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}
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static void
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device_select_drm_handle_authenticated(void *data, struct wl_drm *drm)
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{
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}
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static void
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device_select_drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
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{
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}
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static const struct wl_drm_listener ds_drm_listener = {
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.device = device_select_drm_handle_device,
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.format = device_select_drm_handle_format,
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.authenticated = device_select_drm_handle_authenticated,
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.capabilities = device_select_drm_handle_capabilities
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};
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static void
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device_select_registry_global(void *data, struct wl_registry *registry, uint32_t name,
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const char *interface, uint32_t version)
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{
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struct device_select_wayland_info *info = data;
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if (strcmp(interface, "wl_drm") == 0) {
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info->wl_drm = wl_registry_bind(registry, name, &wl_drm_interface, MIN2(version, 2));
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wl_drm_add_listener(info->wl_drm, &ds_drm_listener, data);
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}
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}
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static void
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device_select_registry_global_remove_cb(void *data, struct wl_registry *registry,
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uint32_t name)
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{
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}
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int device_select_find_wayland_pci_default(struct device_pci_info *devices, uint32_t device_count)
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{
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struct wl_display *display;
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struct wl_registry *registry = NULL;
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unsigned default_idx = -1;
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struct device_select_wayland_info info = {};
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display = wl_display_connect(NULL);
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if (!display)
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goto out;
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registry = wl_display_get_registry(display);
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if (!registry) {
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wl_display_disconnect(display);
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goto out;
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}
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static const struct wl_registry_listener registry_listener =
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{ device_select_registry_global, device_select_registry_global_remove_cb };
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wl_registry_add_listener(registry, ®istry_listener, &info);
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wl_display_dispatch(display);
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wl_display_roundtrip(display);
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if (info.info_is_set) {
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for (unsigned i = 0; i < device_count; i++) {
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if (devices[i].has_bus_info) {
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if (info.dev_info->businfo.pci->domain == devices[i].bus_info.domain &&
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info.dev_info->businfo.pci->bus == devices[i].bus_info.bus &&
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info.dev_info->businfo.pci->dev == devices[i].bus_info.dev &&
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info.dev_info->businfo.pci->func == devices[i].bus_info.func)
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default_idx = i;
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} else {
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if (info.dev_info->deviceinfo.pci->vendor_id == devices[i].dev_info.vendor_id &&
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info.dev_info->deviceinfo.pci->device_id == devices[i].dev_info.device_id)
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default_idx = i;
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}
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if (default_idx != -1)
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break;
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}
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}
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if (info.wl_drm)
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wl_drm_destroy(info.wl_drm);
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wl_registry_destroy(registry);
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wl_display_disconnect(display);
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out:
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return default_idx;
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}
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