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Inki Dae1c248b72011-10-04 19:19:01 +09001/* exynos_drm_drv.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 *
Inki Daed81aecb2012-12-18 02:30:17 +09009 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
Inki Dae1c248b72011-10-04 19:19:01 +090013 */
14
15#ifndef _EXYNOS_DRM_DRV_H_
16#define _EXYNOS_DRM_DRV_H_
17
Gustavo Padovand2c1bba2014-10-31 14:17:38 +000018#include <drm/drmP.h>
Inki Dae4f9eb942011-11-12 16:57:42 +090019#include <linux/module.h>
Inki Dae1c248b72011-10-04 19:19:01 +090020
Inki Daeb73d1232012-03-21 10:55:26 +090021#define MAX_CRTC 3
Joonyoung Shim864ee9e2011-12-08 17:54:07 +090022#define MAX_PLANE 5
Inki Daeb73d1232012-03-21 10:55:26 +090023#define MAX_FB_BUFFER 4
Inki Dae1c248b72011-10-04 19:19:01 +090024
Gustavo Padovan5d3d0992015-10-12 22:07:48 +090025#define DEFAULT_WIN 0
26
Gustavo Padovan357193c2014-11-03 18:20:29 -020027#define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
Gustavo Padovan8837dee2014-11-03 18:13:27 -020028#define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
Gustavo Padovanffceaed2014-10-31 14:32:32 +000029
Inki Dae1c248b72011-10-04 19:19:01 +090030/* this enumerates display type. */
31enum exynos_drm_output_type {
32 EXYNOS_DISPLAY_TYPE_NONE,
33 /* RGB or CPU Interface. */
34 EXYNOS_DISPLAY_TYPE_LCD,
35 /* HDMI Interface. */
36 EXYNOS_DISPLAY_TYPE_HDMI,
Inki Daeb73d1232012-03-21 10:55:26 +090037 /* Virtual Display Interface. */
38 EXYNOS_DISPLAY_TYPE_VIDI,
Inki Dae1c248b72011-10-04 19:19:01 +090039};
40
Marek Szyprowski0114f402015-11-30 14:53:22 +010041struct exynos_drm_rect {
42 unsigned int x, y;
43 unsigned int w, h;
44};
45
46/*
47 * Exynos drm plane state structure.
48 *
49 * @base: plane_state object (contains drm_framebuffer pointer)
50 * @src: rectangle of the source image data to be displayed (clipped to
51 * visible part).
52 * @crtc: rectangle of the target image position on hardware screen
53 * (clipped to visible part).
54 * @h_ratio: horizontal scaling ratio, 16.16 fixed point
55 * @v_ratio: vertical scaling ratio, 16.16 fixed point
56 *
57 * this structure consists plane state data that will be applied to hardware
58 * specific overlay info.
59 */
60
61struct exynos_drm_plane_state {
62 struct drm_plane_state base;
63 struct exynos_drm_rect crtc;
64 struct exynos_drm_rect src;
65 unsigned int h_ratio;
66 unsigned int v_ratio;
67};
68
69static inline struct exynos_drm_plane_state *
70to_exynos_plane_state(struct drm_plane_state *state)
71{
72 return container_of(state, struct exynos_drm_plane_state, base);
73}
74
Inki Dae1c248b72011-10-04 19:19:01 +090075/*
Inki Dae1c248b72011-10-04 19:19:01 +090076 * Exynos drm common overlay structure.
77 *
Gustavo Padovan8837dee2014-11-03 18:13:27 -020078 * @base: plane object
Marek Szyprowski40bdfb02015-12-16 13:21:42 +010079 * @index: hardware index of the overlay layer
Inki Dae1c248b72011-10-04 19:19:01 +090080 *
81 * this structure is common to exynos SoC and its contents would be copied
82 * to hardware specific overlay info.
83 */
Gustavo Padovan8837dee2014-11-03 18:13:27 -020084
85struct exynos_drm_plane {
86 struct drm_plane base;
Marek Szyprowskifd2d2fc2015-11-30 14:53:25 +010087 const struct exynos_drm_plane_config *config;
Marek Szyprowski40bdfb02015-12-16 13:21:42 +010088 unsigned int index;
Gustavo Padovan822f6df2015-08-15 13:26:14 -030089 struct drm_framebuffer *pending_fb;
Inki Dae1c248b72011-10-04 19:19:01 +090090};
91
Marek Szyprowski6178d3d2015-11-30 14:53:26 +010092#define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
93#define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
Marek Szyprowski0ea72402015-12-16 13:21:43 +010094#define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
Marek Szyprowski6178d3d2015-11-30 14:53:26 +010095
Inki Dae1c248b72011-10-04 19:19:01 +090096/*
Marek Szyprowskifd2d2fc2015-11-30 14:53:25 +010097 * Exynos DRM plane configuration structure.
98 *
Marek Szyprowski0ea72402015-12-16 13:21:43 +010099 * @zpos: initial z-position of the plane.
Marek Szyprowskifd2d2fc2015-11-30 14:53:25 +0100100 * @type: type of the plane (primary, cursor or overlay).
101 * @pixel_formats: supported pixel formats.
102 * @num_pixel_formats: number of elements in 'pixel_formats'.
103 * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
104 */
105
106struct exynos_drm_plane_config {
107 unsigned int zpos;
108 enum drm_plane_type type;
109 const uint32_t *pixel_formats;
110 unsigned int num_pixel_formats;
111 unsigned int capabilities;
112};
113
114/*
Gustavo Padovan93bca242015-01-18 18:16:23 +0900115 * Exynos drm crtc ops
Inki Dae1c248b72011-10-04 19:19:01 +0900116 *
Gustavo Padovan3cecda02015-06-01 12:04:55 -0300117 * @enable: enable the device
118 * @disable: disable the device
Inki Dae1c248b72011-10-04 19:19:01 +0900119 * @commit: set current hw specific display mode to hw.
120 * @enable_vblank: specific driver callback for enabling vblank interrupt.
121 * @disable_vblank: specific driver callback for disabling vblank interrupt.
Andrzej Hajda5625b342015-10-26 13:03:39 +0100122 * @atomic_check: validate state
Marek Szyprowskid29c2c12016-01-05 13:52:51 +0100123 * @atomic_begin: prepare device to receive an update
124 * @atomic_flush: mark the end of device update
Gustavo Padovan9cc76102015-08-03 14:38:05 +0900125 * @update_plane: apply hardware specific overlay data to registers.
126 * @disable_plane: disable hardware specific overlay.
YoungJun Cho5595d4d2014-07-17 18:01:19 +0900127 * @te_handler: trigger to transfer video image at the tearing effect
128 * synchronization signal if there is a page flip request.
Inki Dae1c248b72011-10-04 19:19:01 +0900129 */
Gustavo Padovan93bca242015-01-18 18:16:23 +0900130struct exynos_drm_crtc;
131struct exynos_drm_crtc_ops {
Gustavo Padovan3cecda02015-06-01 12:04:55 -0300132 void (*enable)(struct exynos_drm_crtc *crtc);
133 void (*disable)(struct exynos_drm_crtc *crtc);
Gustavo Padovan93bca242015-01-18 18:16:23 +0900134 void (*commit)(struct exynos_drm_crtc *crtc);
135 int (*enable_vblank)(struct exynos_drm_crtc *crtc);
136 void (*disable_vblank)(struct exynos_drm_crtc *crtc);
Andrzej Hajda5625b342015-10-26 13:03:39 +0100137 int (*atomic_check)(struct exynos_drm_crtc *crtc,
138 struct drm_crtc_state *state);
Marek Szyprowskid29c2c12016-01-05 13:52:51 +0100139 void (*atomic_begin)(struct exynos_drm_crtc *crtc);
Gustavo Padovan1e1d1392015-08-03 14:39:36 +0900140 void (*update_plane)(struct exynos_drm_crtc *crtc,
141 struct exynos_drm_plane *plane);
142 void (*disable_plane)(struct exynos_drm_crtc *crtc,
143 struct exynos_drm_plane *plane);
Marek Szyprowskid29c2c12016-01-05 13:52:51 +0100144 void (*atomic_flush)(struct exynos_drm_crtc *crtc);
Gustavo Padovan93bca242015-01-18 18:16:23 +0900145 void (*te_handler)(struct exynos_drm_crtc *crtc);
Inki Dae1c248b72011-10-04 19:19:01 +0900146};
147
Andrzej Hajdaf26b9342016-03-23 14:25:58 +0100148struct exynos_drm_clk {
149 void (*enable)(struct exynos_drm_clk *clk, bool enable);
150};
151
Gustavo Padovan2bf053e2014-10-31 17:33:30 +0000152/*
153 * Exynos specific crtc structure.
154 *
Gustavo Padovan357193c2014-11-03 18:20:29 -0200155 * @base: crtc object.
Gustavo Padovan5d1741a2014-11-05 19:51:35 -0200156 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
Gustavo Padovan2bf053e2014-10-31 17:33:30 +0000157 * @pipe: a crtc index created at load() with a new crtc object creation
158 * and the crtc object would be set to private->crtc array
159 * to get a crtc object corresponding to this pipe from private->crtc
160 * array when irq interrupt occurred. the reason of using this pipe is that
161 * drm framework doesn't support multiple irq yet.
162 * we can refer to the crtc to current hardware interrupt occurred through
163 * this pipe value.
Gustavo Padovan63498e32015-06-01 12:04:53 -0300164 * @enabled: if the crtc is enabled or not
Mandeep Singh Bainese7527472015-04-01 13:02:12 -0300165 * @event: vblank event that is currently queued for flip
Gustavo Padovanc4533662015-08-15 13:26:18 -0300166 * @wait_update: wait all pending planes updates to finish
167 * @pending_update: number of pending plane updates in this crtc
Gustavo Padovan93bca242015-01-18 18:16:23 +0900168 * @ops: pointer to callbacks for exynos drm specific functionality
169 * @ctx: A pointer to the crtc's implementation specific context
Gustavo Padovan2bf053e2014-10-31 17:33:30 +0000170 */
171struct exynos_drm_crtc {
Gustavo Padovan357193c2014-11-03 18:20:29 -0200172 struct drm_crtc base;
Gustavo Padovan5d1741a2014-11-05 19:51:35 -0200173 enum exynos_drm_output_type type;
Gustavo Padovan2bf053e2014-10-31 17:33:30 +0000174 unsigned int pipe;
Mandeep Singh Bainese7527472015-04-01 13:02:12 -0300175 struct drm_pending_vblank_event *event;
Gustavo Padovanc4533662015-08-15 13:26:18 -0300176 wait_queue_head_t wait_update;
177 atomic_t pending_update;
Krzysztof Kozlowskif3aaf762015-05-07 09:04:45 +0900178 const struct exynos_drm_crtc_ops *ops;
Gustavo Padovan93bca242015-01-18 18:16:23 +0900179 void *ctx;
Andrzej Hajdaf26b9342016-03-23 14:25:58 +0100180 struct exynos_drm_clk *pipe_clk;
Gustavo Padovan2bf053e2014-10-31 17:33:30 +0000181};
182
Andrzej Hajdaf26b9342016-03-23 14:25:58 +0100183static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
184 bool enable)
185{
186 if (crtc->pipe_clk)
187 crtc->pipe_clk->enable(crtc->pipe_clk, enable);
188}
189
Joonyoung Shimd7f16422012-05-17 20:06:32 +0900190struct exynos_drm_g2d_private {
191 struct device *dev;
192 struct list_head inuse_cmdlist;
193 struct list_head event_list;
Inki Dae2a3098f2012-11-04 05:48:52 -0800194 struct list_head userptr_list;
Joonyoung Shimd7f16422012-05-17 20:06:32 +0900195};
196
197struct drm_exynos_file_private {
198 struct exynos_drm_g2d_private *g2d_priv;
Andrzej Hajda5c76c5b2014-07-03 15:10:28 +0200199 struct device *ipp_dev;
Joonyoung Shimd7f16422012-05-17 20:06:32 +0900200};
201
Inki Dae1c248b72011-10-04 19:19:01 +0900202/*
203 * Exynos drm private structure.
Inki Dae0519f9a2012-10-20 07:53:42 -0700204 *
205 * @da_start: start address to device address space.
206 * with iommu, device address space starts from this address
207 * otherwise default one.
208 * @da_space_size: size of device address space.
209 * if 0 then default value is used for it.
Inki Daef37cd5e2014-05-09 14:25:20 +0900210 * @pipe: the pipe number for this crtc/manager.
Gustavo Padovana379df12015-08-15 13:26:17 -0300211 * @pending: the crtcs that have pending updates to finish
212 * @lock: protect access to @pending
213 * @wait: wait an atomic commit to finish
Inki Dae1c248b72011-10-04 19:19:01 +0900214 */
215struct exynos_drm_private {
216 struct drm_fb_helper *fb_helper;
217
Inki Dae1c248b72011-10-04 19:19:01 +0900218 /*
219 * created crtc object would be contained at this array and
220 * this array is used to be aware of which crtc did it request vblank.
221 */
222 struct drm_crtc *crtc[MAX_CRTC];
Inki Dae0519f9a2012-10-20 07:53:42 -0700223
Marek Szyprowskif43c3592016-02-29 17:50:53 +0900224 struct device *dma_dev;
Marek Szyprowskif43c3592016-02-29 17:50:53 +0900225 void *mapping;
Inki Daef37cd5e2014-05-09 14:25:20 +0900226
227 unsigned int pipe;
Gustavo Padovana379df12015-08-15 13:26:17 -0300228
229 /* for atomic commit */
230 u32 pending;
231 spinlock_t lock;
232 wait_queue_head_t wait;
Inki Dae1c248b72011-10-04 19:19:01 +0900233};
234
Andrzej Hajda27019322016-03-23 14:25:57 +0100235static inline struct exynos_drm_crtc *
236exynos_drm_crtc_from_pipe(struct drm_device *dev, int pipe)
237{
238 struct exynos_drm_private *private = dev->dev_private;
239
240 return to_exynos_crtc(private->crtc[pipe]);
241}
242
Marek Szyprowskif43c3592016-02-29 17:50:53 +0900243static inline struct device *to_dma_dev(struct drm_device *dev)
244{
245 struct exynos_drm_private *priv = dev->dev_private;
246
247 return priv->dma_dev;
248}
249
Inki Dae1c248b72011-10-04 19:19:01 +0900250/*
251 * Exynos drm sub driver structure.
252 *
253 * @list: sub driver has its own list object to register to exynos drm driver.
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900254 * @dev: pointer to device object for subdrv device driver.
Inki Dae1c248b72011-10-04 19:19:01 +0900255 * @drm_dev: pointer to drm_device and this pointer would be set
256 * when sub driver calls exynos_drm_subdrv_register().
257 * @probe: this callback would be called by exynos drm driver after
Inki Daef37cd5e2014-05-09 14:25:20 +0900258 * subdrv is registered to it.
Inki Dae1c248b72011-10-04 19:19:01 +0900259 * @remove: this callback is used to release resources created
Inki Daef37cd5e2014-05-09 14:25:20 +0900260 * by probe callback.
Joonyoung Shim9084f7b2012-03-16 18:47:09 +0900261 * @open: this would be called with drm device file open.
262 * @close: this would be called with drm device file close.
Inki Dae1c248b72011-10-04 19:19:01 +0900263 */
264struct exynos_drm_subdrv {
265 struct list_head list;
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900266 struct device *dev;
Inki Dae1c248b72011-10-04 19:19:01 +0900267 struct drm_device *drm_dev;
268
Inki Dae41c24342011-10-14 13:29:48 +0900269 int (*probe)(struct drm_device *drm_dev, struct device *dev);
Inki Dae29cb6022012-09-05 14:12:06 +0900270 void (*remove)(struct drm_device *drm_dev, struct device *dev);
Joonyoung Shim9084f7b2012-03-16 18:47:09 +0900271 int (*open)(struct drm_device *drm_dev, struct device *dev,
272 struct drm_file *file);
273 void (*close)(struct drm_device *drm_dev, struct device *dev,
274 struct drm_file *file);
Inki Dae1c248b72011-10-04 19:19:01 +0900275};
276
Inki Daef37cd5e2014-05-09 14:25:20 +0900277 /* This function would be called by non kms drivers such as g2d and ipp. */
Inki Dae1c248b72011-10-04 19:19:01 +0900278int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
279
Joonyoung Shim132a5b92012-03-16 18:47:08 +0900280/* this function removes subdrv list from exynos drm driver */
Inki Dae1c248b72011-10-04 19:19:01 +0900281int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
282
Inki Daef37cd5e2014-05-09 14:25:20 +0900283int exynos_drm_device_subdrv_probe(struct drm_device *dev);
284int exynos_drm_device_subdrv_remove(struct drm_device *dev);
Joonyoung Shim9084f7b2012-03-16 18:47:09 +0900285int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
286void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
287
Andrzej Hajda14b68732014-03-17 13:03:56 +0100288#ifdef CONFIG_DRM_EXYNOS_DPI
Gustavo Padovan2b8376c2015-08-15 12:14:08 -0300289struct drm_encoder *exynos_dpi_probe(struct device *dev);
290int exynos_dpi_remove(struct drm_encoder *encoder);
291int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
Andrzej Hajda14b68732014-03-17 13:03:56 +0100292#else
Gustavo Padovan2b8376c2015-08-15 12:14:08 -0300293static inline struct drm_encoder *
Dan Carpenterdcdffeda2014-06-11 09:36:23 +0300294exynos_dpi_probe(struct device *dev) { return NULL; }
Gustavo Padovan2b8376c2015-08-15 12:14:08 -0300295static inline int exynos_dpi_remove(struct drm_encoder *encoder)
Gustavo Padovan1c9ff4a2014-11-24 15:19:49 -0200296{
297 return 0;
298}
Gustavo Padovana2986e82015-08-05 20:24:20 -0300299static inline int exynos_dpi_bind(struct drm_device *dev,
Gustavo Padovan2b8376c2015-08-15 12:14:08 -0300300 struct drm_encoder *encoder)
Gustavo Padovana2986e82015-08-05 20:24:20 -0300301{
302 return 0;
303}
Andrzej Hajda14b68732014-03-17 13:03:56 +0100304#endif
305
Gustavo Padovana379df12015-08-15 13:26:17 -0300306int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
Maarten Lankhorst1b3f09d2016-04-26 16:11:37 +0200307 bool nonblock);
Gustavo Padovana379df12015-08-15 13:26:17 -0300308
Inki Daef37cd5e2014-05-09 14:25:20 +0900309
Inki Daef37cd5e2014-05-09 14:25:20 +0900310extern struct platform_driver fimd_driver;
Joonyoung Shimc8466a92015-06-12 21:59:00 +0900311extern struct platform_driver exynos5433_decon_driver;
Ajay Kumar96976c32015-02-05 21:24:04 +0530312extern struct platform_driver decon_driver;
Sean Paul1417f102014-01-30 16:19:23 -0500313extern struct platform_driver dp_driver;
Andrzej Hajda7eb8f062014-04-04 01:19:56 +0900314extern struct platform_driver dsi_driver;
Joonyoung Shim132a5b92012-03-16 18:47:08 +0900315extern struct platform_driver mixer_driver;
Inki Daef37cd5e2014-05-09 14:25:20 +0900316extern struct platform_driver hdmi_driver;
Inki Daeb73d1232012-03-21 10:55:26 +0900317extern struct platform_driver vidi_driver;
Joonyoung Shimd7f16422012-05-17 20:06:32 +0900318extern struct platform_driver g2d_driver;
Eunchul Kim16102ed2012-12-14 17:58:55 +0900319extern struct platform_driver fimc_driver;
Eunchul Kimbea8a422012-12-14 17:58:56 +0900320extern struct platform_driver rotator_driver;
Eunchul Kimf2646382012-12-14 17:58:57 +0900321extern struct platform_driver gsc_driver;
Eunchul Kimcb471f142012-12-14 18:10:31 +0900322extern struct platform_driver ipp_driver;
Hyungwon Hwang77bbd892015-06-12 21:59:02 +0900323extern struct platform_driver mic_driver;
Inki Dae1c248b72011-10-04 19:19:01 +0900324#endif