1 /*
2 * Copyright (C) 2012 Russell King
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8 #ifndef ARMADA_DRM_H
9 #define ARMADA_DRM_H
10
11 #include <linux/kfifo.h>
12 #include <linux/io.h>
13 #include <linux/workqueue.h>
14 #include <drm/drmP.h>
15
16 struct armada_crtc;
17 struct armada_gem_object;
18 struct clk;
19 struct drm_fb_helper;
20
21 static inline void
armada_updatel(uint32_t val,uint32_t mask,void __iomem * ptr)22 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
23 {
24 uint32_t ov, v;
25
26 ov = v = readl_relaxed(ptr);
27 v = (v & ~mask) | val;
28 if (ov != v)
29 writel_relaxed(v, ptr);
30 }
31
armada_pitch(uint32_t width,uint32_t bpp)32 static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
33 {
34 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
35
36 /* 88AP510 spec recommends pitch be a multiple of 128 */
37 return ALIGN(pitch, 128);
38 }
39
40
41 struct armada_private;
42
43 struct armada_variant {
44 bool has_spu_adv_reg;
45 int (*init)(struct armada_crtc *, struct device *);
46 int (*compute_clock)(struct armada_crtc *,
47 const struct drm_display_mode *,
48 uint32_t *);
49 void (*disable)(struct armada_crtc *);
50 void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
51 };
52
53 /* Variant ops */
54 extern const struct armada_variant armada510_ops;
55
56 struct armada_private {
57 struct drm_device drm;
58 struct drm_fb_helper *fbdev;
59 struct armada_crtc *dcrtc[2];
60 struct drm_mm linear; /* protected by linear_lock */
61 struct mutex linear_lock;
62 struct drm_property *colorkey_prop;
63 struct drm_property *colorkey_min_prop;
64 struct drm_property *colorkey_max_prop;
65 struct drm_property *colorkey_val_prop;
66 struct drm_property *colorkey_alpha_prop;
67 struct drm_property *colorkey_mode_prop;
68 struct drm_property *brightness_prop;
69 struct drm_property *contrast_prop;
70 struct drm_property *saturation_prop;
71 #ifdef CONFIG_DEBUG_FS
72 struct dentry *de;
73 #endif
74 };
75
76 int armada_fbdev_init(struct drm_device *);
77 void armada_fbdev_fini(struct drm_device *);
78
79 int armada_overlay_plane_create(struct drm_device *, unsigned long);
80
81 int armada_drm_debugfs_init(struct drm_minor *);
82
83 #endif
84
