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#include "drm.h"
 33
 34/**
 35 * User-desired buffer creation information structure.
 36 *
 37 * @size: user-desired memory allocation size.
 38 *	- this size value would be page-aligned internally.
 39 * @flags: user request for setting memory type or cache attributes.
 40 * @handle: returned a handle to created gem object.
 41 *	- this handle will be set by gem module of kernel side.
 42 */
 43struct drm_exynos_gem_create {
 44	uint64_t size;
 45	unsigned int flags;
 46	unsigned int handle;
 47};
 48
 49/**
 50 * A structure for getting buffer offset.
 51 *
 52 * @handle: a pointer to gem object created.
 53 * @pad: just padding to be 64-bit aligned.
 54 * @offset: relatived offset value of the memory region allocated.
 55 *	- this value should be set by user.
 56 */
 57struct drm_exynos_gem_map_off {
 58	unsigned int handle;
 59	unsigned int pad;
 60	uint64_t offset;
 61};
 62
 63/**
 64 * A structure for mapping buffer.
 65 *
 66 * @handle: a handle to gem object created.
 67 * @pad: just padding to be 64-bit aligned.
 68 * @size: memory size to be mapped.
 69 * @mapped: having user virtual address mmaped.
 70 *	- this variable would be filled by exynos gem module
 71 *	of kernel side with user virtual address which is allocated
 72 *	by do_mmap().
 73 */
 74struct drm_exynos_gem_mmap {
 75	unsigned int handle;
 76	unsigned int pad;
 77	uint64_t size;
 78	uint64_t mapped;
 79};
 80
 81/**
 82 * A structure to gem information.
 83 *
 84 * @handle: a handle to gem object created.
 85 * @flags: flag value including memory type and cache attribute and
 86 *	this value would be set by driver.
 87 * @size: size to memory region allocated by gem and this size would
 88 *	be set by driver.
 89 */
 90struct drm_exynos_gem_info {
 91	unsigned int handle;
 92	unsigned int flags;
 93	uint64_t size;
 94};
 95
 96/**
 97 * A structure for user connection request of virtual display.
 98 *
 99 * @connection: indicate whether doing connetion or not by user.
100 * @extensions: if this value is 1 then the vidi driver would need additional
101 *	128bytes edid data.
102 * @edid: the edid data pointer from user side.
103 */
104struct drm_exynos_vidi_connection {
105	unsigned int connection;
106	unsigned int extensions;
107	uint64_t edid;
108};
109
110struct drm_exynos_plane_set_zpos {
111	__u32 plane_id;
112	__s32 zpos;
113};
114
115/* memory type definitions. */
116enum e_drm_exynos_gem_mem_type {
117	/* Physically Continuous memory and used as default. */
118	EXYNOS_BO_CONTIG	= 0 << 0,
119	/* Physically Non-Continuous memory. */
120	EXYNOS_BO_NONCONTIG	= 1 << 0,
121	/* non-cachable mapping and used as default. */
122	EXYNOS_BO_NONCACHABLE	= 0 << 1,
123	/* cachable mapping. */
124	EXYNOS_BO_CACHABLE	= 1 << 1,
125	/* write-combine mapping. */
126	EXYNOS_BO_WC		= 1 << 2,
127	EXYNOS_BO_MASK		= EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE |
128					EXYNOS_BO_WC
129};
130
131struct drm_exynos_g2d_get_ver {
132	__u32	major;
133	__u32	minor;
134};
135
136struct drm_exynos_g2d_cmd {
137	__u32	offset;
138	__u32	data;
139};
140
141enum drm_exynos_g2d_event_type {
142	G2D_EVENT_NOT,
143	G2D_EVENT_NONSTOP,
144	G2D_EVENT_STOP,		/* not yet */
145};
146
147struct drm_exynos_g2d_set_cmdlist {
148	__u64					cmd;
149	__u64					cmd_gem;
150	__u32					cmd_nr;
151	__u32					cmd_gem_nr;
152
153	/* for g2d event */
154	__u64					event_type;
155	__u64					user_data;
156};
157
158struct drm_exynos_g2d_exec {
159	__u64					async;
160};
161
162#define DRM_EXYNOS_GEM_CREATE		0x00
163#define DRM_EXYNOS_GEM_MAP_OFFSET	0x01
164#define DRM_EXYNOS_GEM_MMAP		0x02
165/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
166#define DRM_EXYNOS_GEM_GET		0x04
167#define DRM_EXYNOS_PLANE_SET_ZPOS	0x06
168#define DRM_EXYNOS_VIDI_CONNECTION	0x07
169
170/* G2D */
171#define DRM_EXYNOS_G2D_GET_VER		0x20
172#define DRM_EXYNOS_G2D_SET_CMDLIST	0x21
173#define DRM_EXYNOS_G2D_EXEC		0x22
174
175#define DRM_IOCTL_EXYNOS_GEM_CREATE		DRM_IOWR(DRM_COMMAND_BASE + \
176		DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
177
178#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET	DRM_IOWR(DRM_COMMAND_BASE + \
179		DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
180
181#define DRM_IOCTL_EXYNOS_GEM_MMAP	DRM_IOWR(DRM_COMMAND_BASE + \
182		DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
183
184#define DRM_IOCTL_EXYNOS_GEM_GET	DRM_IOWR(DRM_COMMAND_BASE + \
185		DRM_EXYNOS_GEM_GET,	struct drm_exynos_gem_info)
186
187#define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS	DRM_IOWR(DRM_COMMAND_BASE + \
188		DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
189
190#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION	DRM_IOWR(DRM_COMMAND_BASE + \
191		DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
192
193#define DRM_IOCTL_EXYNOS_G2D_GET_VER		DRM_IOWR(DRM_COMMAND_BASE + \
194		DRM_EXYNOS_G2D_GET_VER, struct drm_exynos_g2d_get_ver)
195#define DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST	DRM_IOWR(DRM_COMMAND_BASE + \
196		DRM_EXYNOS_G2D_SET_CMDLIST, struct drm_exynos_g2d_set_cmdlist)
197#define DRM_IOCTL_EXYNOS_G2D_EXEC		DRM_IOWR(DRM_COMMAND_BASE + \
198		DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)
199
200/* EXYNOS specific events */
201#define DRM_EXYNOS_G2D_EVENT		0x80000000
202
203struct drm_exynos_g2d_event {
204	struct drm_event	base;
205	__u64			user_data;
206	__u32			tv_sec;
207	__u32			tv_usec;
208	__u32			cmdlist_no;
209	__u32			reserved;
210};
211
212#ifdef __KERNEL__
213
214/**
215 * A structure for lcd panel information.
216 *
217 * @timing: default video mode for initializing
218 * @width_mm: physical size of lcd width.
219 * @height_mm: physical size of lcd height.
220 */
221struct exynos_drm_panel_info {
222	struct fb_videomode timing;
223	u32 width_mm;
224	u32 height_mm;
225};
226
227/**
228 * Platform Specific Structure for DRM based FIMD.
229 *
230 * @panel: default panel info for initializing
231 * @default_win: default window layer number to be used for UI.
232 * @bpp: default bit per pixel.
233 */
234struct exynos_drm_fimd_pdata {
235	struct exynos_drm_panel_info panel;
236	u32				vidcon0;
237	u32				vidcon1;
238	unsigned int			default_win;
239	unsigned int			bpp;
240};
241
242/**
243 * Platform Specific Structure for DRM based HDMI.
244 *
245 * @hdmi_dev: device point to specific hdmi driver.
246 * @mixer_dev: device point to specific mixer driver.
247 *
248 * this structure is used for common hdmi driver and each device object
249 * would be used to access specific device driver(hdmi or mixer driver)
250 */
251struct exynos_drm_common_hdmi_pd {
252	struct device *hdmi_dev;
253	struct device *mixer_dev;
254};
255
256/**
257 * Platform Specific Structure for DRM based HDMI core.
258 *
259 * @is_v13: set if hdmi version 13 is.
260 * @cfg_hpd: function pointer to configure hdmi hotplug detection pin
261 * @get_hpd: function pointer to get value of hdmi hotplug detection pin
262 */
263struct exynos_drm_hdmi_pdata {
264	bool is_v13;
265	void (*cfg_hpd)(bool external);
266	int (*get_hpd)(void);
267};
268
269#endif	/* __KERNEL__ */
270#endif	/* _EXYNOS_DRM_H_ */