2 * Copyright (C) 2012 Avionic Design GmbH
3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
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.
11 #define HOST1X_DRM_H 1
13 #include <uapi/drm/tegra_drm.h>
14 #include <linux/host1x.h>
17 #include <drm/drm_crtc_helper.h>
18 #include <drm/drm_edid.h>
19 #include <drm/drm_fb_helper.h>
20 #include <drm/drm_fixed.h>
23 struct drm_framebuffer base;
24 struct tegra_bo **planes;
25 unsigned int num_planes;
29 struct drm_fb_helper base;
34 struct drm_device *drm;
37 struct mutex subdevs_lock;
38 struct list_head subdevs;
39 struct list_head active;
41 struct mutex clients_lock;
42 struct list_head clients;
44 struct tegra_fbdev *fbdev;
49 struct tegra_drm_context {
50 struct host1x_client *client;
51 struct host1x_channel *channel;
52 struct list_head list;
55 struct host1x_client_ops {
56 int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
57 int (*drm_exit)(struct host1x_client *client);
58 int (*open_channel)(struct host1x_client *client,
59 struct tegra_drm_context *context);
60 void (*close_channel)(struct tegra_drm_context *context);
61 int (*submit)(struct tegra_drm_context *context,
62 struct drm_tegra_submit *args, struct drm_device *drm,
63 struct drm_file *file);
66 struct host1x_client {
67 struct tegra_drm *tegra;
70 const struct host1x_client_ops *ops;
72 enum host1x_class class;
73 struct host1x_channel *channel;
75 struct host1x_syncpt **syncpts;
76 unsigned int num_syncpts;
78 struct list_head list;
81 extern int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
82 extern int tegra_drm_exit(struct tegra_drm *tegra);
84 extern int host1x_register_client(struct tegra_drm *tegra,
85 struct host1x_client *client);
86 extern int host1x_unregister_client(struct tegra_drm *tegra,
87 struct host1x_client *client);
92 struct host1x_client client;
103 struct tegra_output *rgb;
105 struct list_head list;
107 struct drm_info_list *debugfs_files;
108 struct drm_minor *minor;
109 struct dentry *debugfs;
111 /* page-flip handling */
112 struct drm_pending_vblank_event *event;
115 static inline struct tegra_dc *host1x_client_to_dc(struct host1x_client *client)
117 return container_of(client, struct tegra_dc, client);
120 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
122 return container_of(crtc, struct tegra_dc, base);
125 static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
128 writel(value, dc->regs + (reg << 2));
131 static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
134 return readl(dc->regs + (reg << 2));
137 struct tegra_dc_window {
150 unsigned int bits_per_pixel;
152 unsigned int stride[2];
153 unsigned long base[3];
157 extern unsigned int tegra_dc_format(uint32_t format);
158 extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
159 const struct tegra_dc_window *window);
160 extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
161 extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
162 extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
163 struct drm_file *file);
165 struct tegra_output_ops {
166 int (*enable)(struct tegra_output *output);
167 int (*disable)(struct tegra_output *output);
168 int (*setup_clock)(struct tegra_output *output, struct clk *clk,
170 int (*check_mode)(struct tegra_output *output,
171 struct drm_display_mode *mode,
172 enum drm_mode_status *status);
175 enum tegra_output_type {
180 struct tegra_output {
181 struct device_node *of_node;
184 const struct tegra_output_ops *ops;
185 enum tegra_output_type type;
187 struct i2c_adapter *ddc;
188 const struct edid *edid;
189 unsigned int hpd_irq;
192 struct drm_encoder encoder;
193 struct drm_connector connector;
196 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
198 return container_of(e, struct tegra_output, encoder);
201 static inline struct tegra_output *connector_to_output(struct drm_connector *c)
203 return container_of(c, struct tegra_output, connector);
206 static inline int tegra_output_enable(struct tegra_output *output)
208 if (output && output->ops && output->ops->enable)
209 return output->ops->enable(output);
211 return output ? -ENOSYS : -EINVAL;
214 static inline int tegra_output_disable(struct tegra_output *output)
216 if (output && output->ops && output->ops->disable)
217 return output->ops->disable(output);
219 return output ? -ENOSYS : -EINVAL;
222 static inline int tegra_output_setup_clock(struct tegra_output *output,
223 struct clk *clk, unsigned long pclk)
225 if (output && output->ops && output->ops->setup_clock)
226 return output->ops->setup_clock(output, clk, pclk);
228 return output ? -ENOSYS : -EINVAL;
231 static inline int tegra_output_check_mode(struct tegra_output *output,
232 struct drm_display_mode *mode,
233 enum drm_mode_status *status)
235 if (output && output->ops && output->ops->check_mode)
236 return output->ops->check_mode(output, mode, status);
238 return output ? -ENOSYS : -EINVAL;
242 extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
243 extern int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
244 extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
247 extern int tegra_output_parse_dt(struct tegra_output *output);
248 extern int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
249 extern int tegra_output_exit(struct tegra_output *output);
252 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
254 extern int tegra_drm_fb_init(struct drm_device *drm);
255 extern void tegra_drm_fb_exit(struct drm_device *drm);
256 extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
258 extern struct drm_driver tegra_drm_driver;
260 #endif /* HOST1X_DRM_H */