tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* exynos_drm.h
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Authors:
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 */
28
29#ifndef _EXYNOS_DRM_H_
30#define _EXYNOS_DRM_H_
31
32/**
33 * User-desired buffer creation information structure.
34 *
35 * @size: user-desired memory allocation size.
36 * - this size value would be page-aligned internally.
37 * @flags: user request for setting memory type or cache attributes.
38 * @handle: returned a handle to created gem object.
39 * - this handle will be set by gem module of kernel side.
40 */
41struct drm_exynos_gem_create {
42 uint64_t size;
43 unsigned int flags;
44 unsigned int handle;
45};
46
47/**
48 * A structure for getting buffer offset.
49 *
50 * @handle: a pointer to gem object created.
51 * @pad: just padding to be 64-bit aligned.
52 * @offset: relatived offset value of the memory region allocated.
53 * - this value should be set by user.
54 */
55struct drm_exynos_gem_map_off {
56 unsigned int handle;
57 unsigned int pad;
58 uint64_t offset;
59};
60
61/**
62 * A structure for mapping buffer.
63 *
64 * @handle: a handle to gem object created.
65 * @size: memory size to be mapped.
66 * @mapped: having user virtual address mmaped.
67 * - this variable would be filled by exynos gem module
68 * of kernel side with user virtual address which is allocated
69 * by do_mmap().
70 */
71struct drm_exynos_gem_mmap {
72 unsigned int handle;
73 unsigned int size;
74 uint64_t mapped;
75};
76
77/**
78 * A structure for user connection request of virtual display.
79 *
80 * @connection: indicate whether doing connetion or not by user.
81 * @extensions: if this value is 1 then the vidi driver would need additional
82 * 128bytes edid data.
83 * @edid: the edid data pointer from user side.
84 */
85struct drm_exynos_vidi_connection {
86 unsigned int connection;
87 unsigned int extensions;
88 uint64_t edid;
89};
90
91struct drm_exynos_plane_set_zpos {
92 __u32 plane_id;
93 __s32 zpos;
94};
95
96/* memory type definitions. */
97enum e_drm_exynos_gem_mem_type {
98 /* Physically Non-Continuous memory. */
99 EXYNOS_BO_NONCONTIG = 1 << 0,
100 EXYNOS_BO_MASK = EXYNOS_BO_NONCONTIG
101};
102
103#define DRM_EXYNOS_GEM_CREATE 0x00
104#define DRM_EXYNOS_GEM_MAP_OFFSET 0x01
105#define DRM_EXYNOS_GEM_MMAP 0x02
106/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
107#define DRM_EXYNOS_PLANE_SET_ZPOS 0x06
108#define DRM_EXYNOS_VIDI_CONNECTION 0x07
109
110#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
111 DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
112
113#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
114 DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
115
116#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \
117 DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
118
119#define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS DRM_IOWR(DRM_COMMAND_BASE + \
120 DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
121
122#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION DRM_IOWR(DRM_COMMAND_BASE + \
123 DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
124
125#ifdef __KERNEL__
126
127/**
128 * A structure for lcd panel information.
129 *
130 * @timing: default video mode for initializing
131 * @width_mm: physical size of lcd width.
132 * @height_mm: physical size of lcd height.
133 */
134struct exynos_drm_panel_info {
135 struct fb_videomode timing;
136 u32 width_mm;
137 u32 height_mm;
138};
139
140/**
141 * Platform Specific Structure for DRM based FIMD.
142 *
143 * @panel: default panel info for initializing
144 * @default_win: default window layer number to be used for UI.
145 * @bpp: default bit per pixel.
146 */
147struct exynos_drm_fimd_pdata {
148 struct exynos_drm_panel_info panel;
149 u32 vidcon0;
150 u32 vidcon1;
151 unsigned int default_win;
152 unsigned int bpp;
153};
154
155/**
156 * Platform Specific Structure for DRM based HDMI.
157 *
158 * @hdmi_dev: device point to specific hdmi driver.
159 * @mixer_dev: device point to specific mixer driver.
160 *
161 * this structure is used for common hdmi driver and each device object
162 * would be used to access specific device driver(hdmi or mixer driver)
163 */
164struct exynos_drm_common_hdmi_pd {
165 struct device *hdmi_dev;
166 struct device *mixer_dev;
167};
168
169/**
170 * Platform Specific Structure for DRM based HDMI core.
171 *
172 * @timing: default video mode for initializing
173 * @default_win: default window layer number to be used for UI.
174 * @bpp: default bit per pixel.
175 * @is_v13: set if hdmi version 13 is.
176 */
177struct exynos_drm_hdmi_pdata {
178 struct fb_videomode timing;
179 unsigned int default_win;
180 unsigned int bpp;
181 unsigned int is_v13:1;
182};
183
184#endif /* __KERNEL__ */
185#endif /* _EXYNOS_DRM_H_ */