tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2012 Avionic Design GmbH
3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10#ifndef HOST1X_DRM_H
11#define HOST1X_DRM_H 1
12
13#include <uapi/drm/tegra_drm.h>
14#include <linux/host1x.h>
15#include <linux/of_gpio.h>
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc_helper.h>
19#include <drm/drm_edid.h>
20#include <drm/drm_fb_helper.h>
21#include <drm/drm_fixed.h>
22
23#include "gem.h"
24
25struct reset_control;
26
27struct tegra_fb {
28 struct drm_framebuffer base;
29 struct tegra_bo **planes;
30 unsigned int num_planes;
31};
32
33#ifdef CONFIG_DRM_TEGRA_FBDEV
34struct tegra_fbdev {
35 struct drm_fb_helper base;
36 struct tegra_fb *fb;
37};
38#endif
39
40struct tegra_drm {
41 struct drm_device *drm;
42
43 struct iommu_domain *domain;
44 struct drm_mm mm;
45
46 struct mutex clients_lock;
47 struct list_head clients;
48
49#ifdef CONFIG_DRM_TEGRA_FBDEV
50 struct tegra_fbdev *fbdev;
51#endif
52
53 unsigned int pitch_align;
54
55 struct {
56 struct drm_atomic_state *state;
57 struct work_struct work;
58 struct mutex lock;
59 } commit;
60};
61
62struct tegra_drm_client;
63
64struct tegra_drm_context {
65 struct tegra_drm_client *client;
66 struct host1x_channel *channel;
67 struct list_head list;
68};
69
70struct tegra_drm_client_ops {
71 int (*open_channel)(struct tegra_drm_client *client,
72 struct tegra_drm_context *context);
73 void (*close_channel)(struct tegra_drm_context *context);
74 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
75 int (*submit)(struct tegra_drm_context *context,
76 struct drm_tegra_submit *args, struct drm_device *drm,
77 struct drm_file *file);
78};
79
80int tegra_drm_submit(struct tegra_drm_context *context,
81 struct drm_tegra_submit *args, struct drm_device *drm,
82 struct drm_file *file);
83
84struct tegra_drm_client {
85 struct host1x_client base;
86 struct list_head list;
87
88 const struct tegra_drm_client_ops *ops;
89};
90
91static inline struct tegra_drm_client *
92host1x_to_drm_client(struct host1x_client *client)
93{
94 return container_of(client, struct tegra_drm_client, base);
95}
96
97int tegra_drm_register_client(struct tegra_drm *tegra,
98 struct tegra_drm_client *client);
99int tegra_drm_unregister_client(struct tegra_drm *tegra,
100 struct tegra_drm_client *client);
101
102int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
103int tegra_drm_exit(struct tegra_drm *tegra);
104
105struct tegra_dc_soc_info;
106struct tegra_output;
107
108struct tegra_dc_stats {
109 unsigned long frames;
110 unsigned long vblank;
111 unsigned long underflow;
112 unsigned long overflow;
113};
114
115struct tegra_dc {
116 struct host1x_client client;
117 struct host1x_syncpt *syncpt;
118 struct device *dev;
119 spinlock_t lock;
120
121 struct drm_crtc base;
122 int powergate;
123 int pipe;
124
125 struct clk *clk;
126 struct reset_control *rst;
127 void __iomem *regs;
128 int irq;
129
130 struct tegra_output *rgb;
131
132 struct tegra_dc_stats stats;
133 struct list_head list;
134
135 struct drm_info_list *debugfs_files;
136 struct drm_minor *minor;
137 struct dentry *debugfs;
138
139 /* page-flip handling */
140 struct drm_pending_vblank_event *event;
141
142 const struct tegra_dc_soc_info *soc;
143
144 struct iommu_domain *domain;
145};
146
147static inline struct tegra_dc *
148host1x_client_to_dc(struct host1x_client *client)
149{
150 return container_of(client, struct tegra_dc, client);
151}
152
153static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
154{
155 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
156}
157
158static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
159 unsigned long offset)
160{
161 writel(value, dc->regs + (offset << 2));
162}
163
164static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset)
165{
166 return readl(dc->regs + (offset << 2));
167}
168
169struct tegra_dc_window {
170 struct {
171 unsigned int x;
172 unsigned int y;
173 unsigned int w;
174 unsigned int h;
175 } src;
176 struct {
177 unsigned int x;
178 unsigned int y;
179 unsigned int w;
180 unsigned int h;
181 } dst;
182 unsigned int bits_per_pixel;
183 unsigned int stride[2];
184 unsigned long base[3];
185 bool bottom_up;
186
187 struct tegra_bo_tiling tiling;
188 u32 format;
189 u32 swap;
190};
191
192/* from dc.c */
193u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc);
194void tegra_dc_enable_vblank(struct tegra_dc *dc);
195void tegra_dc_disable_vblank(struct tegra_dc *dc);
196void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file);
197void tegra_dc_commit(struct tegra_dc *dc);
198int tegra_dc_state_setup_clock(struct tegra_dc *dc,
199 struct drm_crtc_state *crtc_state,
200 struct clk *clk, unsigned long pclk,
201 unsigned int div);
202
203struct tegra_output {
204 struct device_node *of_node;
205 struct device *dev;
206
207 struct drm_panel *panel;
208 struct i2c_adapter *ddc;
209 const struct edid *edid;
210 unsigned int hpd_irq;
211 int hpd_gpio;
212 enum of_gpio_flags hpd_gpio_flags;
213
214 struct drm_encoder encoder;
215 struct drm_connector connector;
216};
217
218static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
219{
220 return container_of(e, struct tegra_output, encoder);
221}
222
223static inline struct tegra_output *connector_to_output(struct drm_connector *c)
224{
225 return container_of(c, struct tegra_output, connector);
226}
227
228/* from rgb.c */
229int tegra_dc_rgb_probe(struct tegra_dc *dc);
230int tegra_dc_rgb_remove(struct tegra_dc *dc);
231int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
232int tegra_dc_rgb_exit(struct tegra_dc *dc);
233
234/* from output.c */
235int tegra_output_probe(struct tegra_output *output);
236void tegra_output_remove(struct tegra_output *output);
237int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
238void tegra_output_exit(struct tegra_output *output);
239
240int tegra_output_connector_get_modes(struct drm_connector *connector);
241struct drm_encoder *
242tegra_output_connector_best_encoder(struct drm_connector *connector);
243enum drm_connector_status
244tegra_output_connector_detect(struct drm_connector *connector, bool force);
245void tegra_output_connector_destroy(struct drm_connector *connector);
246
247void tegra_output_encoder_destroy(struct drm_encoder *encoder);
248
249/* from dpaux.c */
250struct tegra_dpaux;
251struct drm_dp_link;
252
253struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np);
254enum drm_connector_status tegra_dpaux_detect(struct tegra_dpaux *dpaux);
255int tegra_dpaux_attach(struct tegra_dpaux *dpaux, struct tegra_output *output);
256int tegra_dpaux_detach(struct tegra_dpaux *dpaux);
257int tegra_dpaux_enable(struct tegra_dpaux *dpaux);
258int tegra_dpaux_disable(struct tegra_dpaux *dpaux);
259int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding);
260int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link,
261 u8 pattern);
262
263/* from fb.c */
264struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
265 unsigned int index);
266bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
267int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
268 struct tegra_bo_tiling *tiling);
269struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
270 struct drm_file *file,
271 struct drm_mode_fb_cmd2 *cmd);
272int tegra_drm_fb_prepare(struct drm_device *drm);
273void tegra_drm_fb_free(struct drm_device *drm);
274int tegra_drm_fb_init(struct drm_device *drm);
275void tegra_drm_fb_exit(struct drm_device *drm);
276#ifdef CONFIG_DRM_TEGRA_FBDEV
277void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
278void tegra_fb_output_poll_changed(struct drm_device *drm);
279#endif
280
281extern struct platform_driver tegra_dc_driver;
282extern struct platform_driver tegra_dsi_driver;
283extern struct platform_driver tegra_sor_driver;
284extern struct platform_driver tegra_hdmi_driver;
285extern struct platform_driver tegra_dpaux_driver;
286extern struct platform_driver tegra_gr2d_driver;
287extern struct platform_driver tegra_gr3d_driver;
288
289#endif /* HOST1X_DRM_H */