2 * Copyright © 2013 Renesas Solutions Corp.
3 * Copyright © 2011 Kristian Høgsberg
4 * Copyright © 2011 Benjamin Franzke
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
27 * Takanari Hayama <taki@igel.co.jp>
29 * Based on wayland-drm.c by the following authors:
30 * Kristian Høgsberg <krh@bitplanet.net>
31 * Benjamin Franzke <benjaminfranzke@googlemail.com>
42 #include <wayland-server.h>
43 #include "wayland-kms.h"
44 #include "wayland-kms-server-protocol.h"
47 # define WLKMS_DEBUG(s, x...) { printf(s, ##x); }
49 # define WLKMS_DEBUG(s, x...) { }
53 struct wl_display *display;
54 int fd; /* FD for DRM */
58 static void destroy_buffer(struct wl_resource *resource)
60 struct wl_kms_buffer *buffer = resource->data;
65 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
67 wl_resource_destroy(resource);
70 const static struct wl_buffer_interface kms_buffer_interface = {
71 .destroy = buffer_destroy
75 kms_authenticate(struct wl_client *client, struct wl_resource *resource,
78 struct wl_kms *kms = resource->data;
81 WLKMS_DEBUG("%s: %s: magic=%lu\n", __FILE__, __func__, magic);
83 if (drmAuthMagic(kms->fd, magic) < 0) {
84 wl_resource_post_error(resource, WL_KMS_ERROR_AUTHENTICATION_FAILED,
85 "authentication failed");
86 WLKMS_DEBUG("%s: %s: authentication failed.\n", __FILE__, __func__);
88 wl_resource_post_event(resource, WL_KMS_AUTHENTICATED);
89 WLKMS_DEBUG("%s: %s: authentication succeeded.\n", __FILE__, __func__);
94 kms_create_buffer(struct wl_client *client, struct wl_resource *resource,
95 uint32_t id, int32_t prime_fd, int32_t width, int32_t height,
96 uint32_t stride, uint32_t format, uint32_t handle)
98 struct wl_kms *kms = resource->data;
99 struct wl_kms_buffer *buffer;
103 case WL_KMS_FORMAT_ARGB8888:
104 case WL_KMS_FORMAT_XRGB8888:
107 wl_resource_post_error(resource,
108 WL_KMS_ERROR_INVALID_FORMAT,
113 buffer = calloc(1, sizeof *buffer);
114 if (buffer == NULL) {
115 wl_resource_post_no_memory(resource);
120 buffer->width = width;
121 buffer->height = height;
122 buffer->format = format;
123 buffer->stride = stride;
124 buffer->fd = prime_fd;
126 WLKMS_DEBUG("%s: %s: prime_fd=%d\n", __FILE__, __func__, prime_fd);
128 if ((err = drmPrimeFDToHandle(kms->fd, prime_fd, &buffer->handle))) {
129 WLKMS_DEBUG("%s: %s: drmPrimeFDToHandle() failed...%d (%s)\n", __FILE__, __func__, err, strerror(errno));
130 wl_resource_post_error(resource,
131 WL_KMS_ERROR_INVALID_FD,
137 struct drm_gem_open op;
143 ret = drmIoctl(kms->fd, DRM_IOCTL_GEM_OPEN, &op);
145 WLKMS_DEBUG("%s: %s: DRM_IOCTL_GEM_OPEN failed...(%s)\n", __FILE__, __func__, strerror(errno));
146 wl_resource_post_error(resource, WL_KMS_ERROR_INVALID_FD, "invalid prime FD");
149 buffer->handle = op.handle;
153 // We create a wl_buffer
154 buffer->resource = wl_resource_create(client, &wl_buffer_interface, 1, id);
155 if (!buffer->resource) {
156 wl_resource_post_no_memory(resource);
161 wl_resource_set_implementation(buffer->resource,
162 (void (**)(void))&kms_buffer_interface,
163 buffer, destroy_buffer);
166 const static struct wl_kms_interface kms_interface = {
167 .authenticate = kms_authenticate,
168 .create_buffer = kms_create_buffer,
172 bind_kms(struct wl_client *client, void *data, uint32_t version, uint32_t id)
174 struct wl_kms *kms = data;
175 struct wl_resource *resource;
176 uint32_t capabilities;
178 resource = wl_resource_create(client, &wl_kms_interface, version, id);
180 wl_client_post_no_memory(client);
184 wl_resource_set_implementation(resource, &kms_interface, data, NULL);
186 wl_resource_post_event(resource, WL_KMS_DEVICE, kms->device_name);
187 wl_resource_post_event(resource, WL_KMS_FORMAT, WL_KMS_FORMAT_ARGB8888);
188 wl_resource_post_event(resource, WL_KMS_FORMAT, WL_KMS_FORMAT_XRGB8888);
191 struct wl_kms_buffer *wayland_kms_buffer_get(struct wl_resource *resource)
193 if (resource == NULL)
196 if (wl_resource_instance_of(resource, &wl_buffer_interface,
197 &kms_buffer_interface))
198 return wl_resource_get_user_data(resource);
203 struct wl_kms *wayland_kms_init(struct wl_display *display, char *device_name, int fd)
207 kms = malloc(sizeof *kms);
209 kms->display = display;
210 kms->device_name = strdup(device_name);
213 wl_global_create(display, &wl_kms_interface, 1, kms, bind_kms);
218 void wayland_kms_uninit(struct wl_kms *kms)
220 free(kms->device_name);
222 /* FIXME: need wl_display_del_{object,global} */
227 uint32_t wayland_kms_buffer_get_format(struct wl_kms_buffer *buffer)
229 return buffer->format;
232 int wayland_kms_query_buffer(struct wl_kms *kms, struct wl_resource *resource,
233 enum wl_kms_attribute attr, int *value)
235 struct wl_kms_buffer *buffer = wayland_kms_buffer_get(resource);
241 *value = buffer->width;
245 *value = buffer->height;
248 case WL_KMS_TEXTURE_FORMAT:
249 *value = WL_KMS_FORMAT_ARGB8888;