1 /* $NetBSD: drm_client.h,v 1.2 2021/12/19 12:04:59 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _DRM_DRM_CLIENT_H_ 30 #define _DRM_DRM_CLIENT_H_ 31 32 #include <linux/mutex.h> 33 34 struct drm_client_buffer; 35 struct drm_client_dev; 36 struct drm_client_funcs; 37 struct drm_device; 38 struct drm_mode_set; 39 40 struct drm_client_dev { 41 struct mutex modeset_mutex; 42 struct drm_mode_set *modesets; 43 struct drm_framebuffer *fb; 44 struct drm_device *dev; 45 const struct drm_client_funcs *funcs; 46 }; 47 48 struct drm_client_funcs { 49 struct module *owner; 50 void (*unregister)(struct drm_client_dev *); 51 int (*restore)(struct drm_client_dev *); 52 int (*hotplug)(struct drm_client_dev *); 53 }; 54 55 struct drm_client_buffer { 56 struct drm_framebuffer *fb; 57 }; 58 59 int drm_client_init(struct drm_device *, struct drm_client_dev *, 60 const char *, const struct drm_client_funcs *); 61 void drm_client_register(struct drm_client_dev *); 62 void drm_client_release(struct drm_client_dev *); 63 64 void drm_client_dev_hotplug(struct drm_device *); 65 void drm_client_dev_restore(struct drm_device *); 66 void drm_client_dev_unregister(struct drm_device *); 67 68 struct drm_client_buffer * 69 drm_client_framebuffer_create(struct drm_client_dev *, u32, u32, u32); 70 void *drm_client_buffer_vmap(struct drm_client_buffer *); 71 void drm_client_buffer_vunmap(struct drm_client_buffer *); 72 void drm_client_framebuffer_delete(struct drm_client_buffer *); 73 74 int drm_client_modeset_create(struct drm_client_dev *); 75 int drm_client_modeset_probe(struct drm_client_dev *, unsigned, unsigned); 76 bool drm_client_rotation(struct drm_mode_set *, unsigned *); 77 int drm_client_modeset_commit_force(struct drm_client_dev *); 78 int drm_client_modeset_commit(struct drm_client_dev *); 79 int drm_client_modeset_dpms(struct drm_client_dev *, int); 80 void drm_client_modeset_free(struct drm_client_dev *); 81 82 #define drm_client_for_each_modeset(MODESET, CLIENT) \ 83 KASSERT(mutex_is_locked(&(CLIENT)->modeset_mutex)); \ 84 drm_client_for_each_modeset_unlocked(MODESET, CLIENT) 85 86 #define drm_client_for_each_modeset_unlocked(MODESET, CLIENT) \ 87 for ((MODESET) = (CLIENT)->modesets; (MODESET)->crtc; (MODESET)++) 88 89 #define drm_client_for_each_connector_iter(CONNECTOR, ITER) \ 90 drm_for_each_connector_iter(CONNECTOR, ITER) \ 91 if ((CONNECTOR)->connector_type != \ 92 DRM_MODE_CONNECTOR_WRITEBACK) 93 94 #endif /* _DRM_DRM_CLIENT_H_ */ 95