1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2012 Russell King
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun #ifndef ARMADA_DRM_H
6*4882a593Smuzhiyun #define ARMADA_DRM_H
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/kfifo.h>
9*4882a593Smuzhiyun #include <linux/io.h>
10*4882a593Smuzhiyun #include <linux/workqueue.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <drm/drm_device.h>
13*4882a593Smuzhiyun #include <drm/drm_mm.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun struct armada_crtc;
16*4882a593Smuzhiyun struct armada_gem_object;
17*4882a593Smuzhiyun struct clk;
18*4882a593Smuzhiyun struct drm_display_mode;
19*4882a593Smuzhiyun struct drm_fb_helper;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun static inline void
armada_updatel(uint32_t val,uint32_t mask,void __iomem * ptr)22*4882a593Smuzhiyun armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun uint32_t ov, v;
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun ov = v = readl_relaxed(ptr);
27*4882a593Smuzhiyun v = (v & ~mask) | val;
28*4882a593Smuzhiyun if (ov != v)
29*4882a593Smuzhiyun writel_relaxed(v, ptr);
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
armada_pitch(uint32_t width,uint32_t bpp)32*4882a593Smuzhiyun static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun /* 88AP510 spec recommends pitch be a multiple of 128 */
37*4882a593Smuzhiyun return ALIGN(pitch, 128);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun struct armada_private;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun struct armada_variant {
44*4882a593Smuzhiyun bool has_spu_adv_reg;
45*4882a593Smuzhiyun int (*init)(struct armada_crtc *, struct device *);
46*4882a593Smuzhiyun int (*compute_clock)(struct armada_crtc *,
47*4882a593Smuzhiyun const struct drm_display_mode *,
48*4882a593Smuzhiyun uint32_t *);
49*4882a593Smuzhiyun void (*disable)(struct armada_crtc *);
50*4882a593Smuzhiyun void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
51*4882a593Smuzhiyun };
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun /* Variant ops */
54*4882a593Smuzhiyun extern const struct armada_variant armada510_ops;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun struct armada_private {
57*4882a593Smuzhiyun struct drm_device drm;
58*4882a593Smuzhiyun struct drm_fb_helper *fbdev;
59*4882a593Smuzhiyun struct armada_crtc *dcrtc[2];
60*4882a593Smuzhiyun struct drm_mm linear; /* protected by linear_lock */
61*4882a593Smuzhiyun struct mutex linear_lock;
62*4882a593Smuzhiyun struct drm_property *colorkey_prop;
63*4882a593Smuzhiyun struct drm_property *colorkey_min_prop;
64*4882a593Smuzhiyun struct drm_property *colorkey_max_prop;
65*4882a593Smuzhiyun struct drm_property *colorkey_val_prop;
66*4882a593Smuzhiyun struct drm_property *colorkey_alpha_prop;
67*4882a593Smuzhiyun struct drm_property *colorkey_mode_prop;
68*4882a593Smuzhiyun struct drm_property *brightness_prop;
69*4882a593Smuzhiyun struct drm_property *contrast_prop;
70*4882a593Smuzhiyun struct drm_property *saturation_prop;
71*4882a593Smuzhiyun #ifdef CONFIG_DEBUG_FS
72*4882a593Smuzhiyun struct dentry *de;
73*4882a593Smuzhiyun #endif
74*4882a593Smuzhiyun };
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun int armada_fbdev_init(struct drm_device *);
79*4882a593Smuzhiyun void armada_fbdev_fini(struct drm_device *);
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun int armada_overlay_plane_create(struct drm_device *, unsigned long);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc);
84*4882a593Smuzhiyun int armada_drm_debugfs_init(struct drm_minor *);
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun #endif
87