xref: /openbmc/linux/drivers/gpu/drm/omapdrm/omap_drv.h (revision a36954f5)
1 /*
2  * drivers/gpu/drm/omapdrm/omap_drv.h
3  *
4  * Copyright (C) 2011 Texas Instruments
5  * Author: Rob Clark <rob@ti.com>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License version 2 as published by
9  * the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef __OMAP_DRV_H__
21 #define __OMAP_DRV_H__
22 
23 #include <linux/module.h>
24 #include <linux/platform_data/omap_drm.h>
25 #include <linux/types.h>
26 #include <linux/wait.h>
27 
28 #include <drm/drmP.h>
29 #include <drm/drm_crtc_helper.h>
30 #include <drm/drm_gem.h>
31 #include <drm/omap_drm.h>
32 
33 #include "dss/omapdss.h"
34 
35 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
36 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
37 
38 #define MODULE_NAME     "omapdrm"
39 
40 struct omap_drm_usergart;
41 
42 /* parameters which describe (unrotated) coordinates of scanout within a fb: */
43 struct omap_drm_window {
44 	uint32_t rotation;
45 	int32_t  crtc_x, crtc_y;		/* signed because can be offscreen */
46 	uint32_t crtc_w, crtc_h;
47 	uint32_t src_x, src_y;
48 	uint32_t src_w, src_h;
49 };
50 
51 /* For KMS code that needs to wait for a certain # of IRQs:
52  */
53 struct omap_irq_wait;
54 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev,
55 		uint32_t irqmask, int count);
56 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait,
57 		unsigned long timeout);
58 
59 struct omap_drm_private {
60 	uint32_t omaprev;
61 
62 	const struct dispc_ops *dispc_ops;
63 
64 	unsigned int num_crtcs;
65 	struct drm_crtc *crtcs[8];
66 
67 	unsigned int num_planes;
68 	struct drm_plane *planes[8];
69 
70 	unsigned int num_encoders;
71 	struct drm_encoder *encoders[8];
72 
73 	unsigned int num_connectors;
74 	struct drm_connector *connectors[8];
75 
76 	struct drm_fb_helper *fbdev;
77 
78 	struct workqueue_struct *wq;
79 
80 	/* lock for obj_list below */
81 	spinlock_t list_lock;
82 
83 	/* list of GEM objects: */
84 	struct list_head obj_list;
85 
86 	struct omap_drm_usergart *usergart;
87 	bool has_dmm;
88 
89 	/* properties: */
90 	struct drm_property *zorder_prop;
91 
92 	/* irq handling: */
93 	spinlock_t wait_lock;		/* protects the wait_list */
94 	struct list_head wait_list;	/* list of omap_irq_wait */
95 	uint32_t irq_mask;		/* enabled irqs in addition to wait_list */
96 
97 	/* atomic commit */
98 	struct {
99 		wait_queue_head_t wait;
100 		u32 pending;
101 		spinlock_t lock;	/* Protects commit.pending */
102 	} commit;
103 };
104 
105 
106 #ifdef CONFIG_DEBUG_FS
107 int omap_debugfs_init(struct drm_minor *minor);
108 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
109 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
110 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
111 #endif
112 
113 #ifdef CONFIG_PM
114 int omap_gem_resume(struct device *dev);
115 #endif
116 
117 int omap_irq_enable_vblank(struct drm_crtc *crtc);
118 void omap_irq_disable_vblank(struct drm_crtc *crtc);
119 void omap_drm_irq_uninstall(struct drm_device *dev);
120 int omap_drm_irq_install(struct drm_device *dev);
121 
122 #ifdef CONFIG_DRM_FBDEV_EMULATION
123 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
124 void omap_fbdev_free(struct drm_device *dev);
125 #else
126 static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
127 {
128 	return NULL;
129 }
130 static inline void omap_fbdev_free(struct drm_device *dev)
131 {
132 }
133 #endif
134 
135 struct videomode *omap_crtc_timings(struct drm_crtc *crtc);
136 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
137 void omap_crtc_pre_init(void);
138 void omap_crtc_pre_uninit(void);
139 struct drm_crtc *omap_crtc_init(struct drm_device *dev,
140 		struct drm_plane *plane, struct omap_dss_device *dssdev);
141 int omap_crtc_wait_pending(struct drm_crtc *crtc);
142 void omap_crtc_error_irq(struct drm_crtc *crtc, uint32_t irqstatus);
143 void omap_crtc_vblank_irq(struct drm_crtc *crtc);
144 
145 struct drm_plane *omap_plane_init(struct drm_device *dev,
146 		int idx, enum drm_plane_type type,
147 		u32 possible_crtcs);
148 void omap_plane_install_properties(struct drm_plane *plane,
149 		struct drm_mode_object *obj);
150 
151 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
152 		struct omap_dss_device *dssdev);
153 
154 struct drm_connector *omap_connector_init(struct drm_device *dev,
155 		int connector_type, struct omap_dss_device *dssdev,
156 		struct drm_encoder *encoder);
157 struct drm_encoder *omap_connector_attached_encoder(
158 		struct drm_connector *connector);
159 bool omap_connector_get_hdmi_mode(struct drm_connector *connector);
160 
161 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
162 		uint32_t max_formats, enum omap_color_mode supported_modes);
163 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
164 		struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
165 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
166 		const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
167 int omap_framebuffer_pin(struct drm_framebuffer *fb);
168 void omap_framebuffer_unpin(struct drm_framebuffer *fb);
169 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
170 		struct omap_drm_window *win, struct omap_overlay_info *info);
171 struct drm_connector *omap_framebuffer_get_next_connector(
172 		struct drm_framebuffer *fb, struct drm_connector *from);
173 bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb);
174 
175 void omap_gem_init(struct drm_device *dev);
176 void omap_gem_deinit(struct drm_device *dev);
177 
178 struct drm_gem_object *omap_gem_new(struct drm_device *dev,
179 		union omap_gem_size gsize, uint32_t flags);
180 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
181 		struct sg_table *sgt);
182 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
183 		union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
184 void omap_gem_free_object(struct drm_gem_object *obj);
185 void *omap_gem_vaddr(struct drm_gem_object *obj);
186 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
187 		uint32_t handle, uint64_t *offset);
188 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
189 		struct drm_mode_create_dumb *args);
190 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
191 int omap_gem_mmap_obj(struct drm_gem_object *obj,
192 		struct vm_area_struct *vma);
193 int omap_gem_fault(struct vm_fault *vmf);
194 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
195 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
196 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
197 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
198 		void (*fxn)(void *arg), void *arg);
199 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
200 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff);
201 void omap_gem_dma_sync(struct drm_gem_object *obj,
202 		enum dma_data_direction dir);
203 int omap_gem_get_paddr(struct drm_gem_object *obj,
204 		dma_addr_t *paddr, bool remap);
205 void omap_gem_put_paddr(struct drm_gem_object *obj);
206 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
207 		bool remap);
208 int omap_gem_put_pages(struct drm_gem_object *obj);
209 uint32_t omap_gem_flags(struct drm_gem_object *obj);
210 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
211 		int x, int y, dma_addr_t *paddr);
212 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
213 size_t omap_gem_mmap_size(struct drm_gem_object *obj);
214 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
215 
216 struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
217 		struct drm_gem_object *obj, int flags);
218 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
219 		struct dma_buf *buffer);
220 
221 /* map crtc to vblank mask */
222 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
223 
224 #endif /* __OMAP_DRV_H__ */
225