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
16struct armada_crtc;
17struct armada_gem_object;
18struct clk;
19struct drm_fb_helper;
20
21static inline void
22armada_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
32static 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
41struct armada_private;
42
43struct armada_variant {
44	bool has_spu_adv_reg;
45	uint32_t spu_adv_reg;
46	int (*init)(struct armada_crtc *, struct device *);
47	int (*compute_clock)(struct armada_crtc *,
48			     const struct drm_display_mode *,
49			     uint32_t *);
50};
51
52/* Variant ops */
53extern const struct armada_variant armada510_ops;
54
55struct armada_private {
56	struct work_struct	fb_unref_work;
57	DECLARE_KFIFO(fb_unref, struct drm_framebuffer *, 8);
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	*csc_yuv_prop;
63	struct drm_property	*csc_rgb_prop;
64	struct drm_property	*colorkey_prop;
65	struct drm_property	*colorkey_min_prop;
66	struct drm_property	*colorkey_max_prop;
67	struct drm_property	*colorkey_val_prop;
68	struct drm_property	*colorkey_alpha_prop;
69	struct drm_property	*colorkey_mode_prop;
70	struct drm_property	*brightness_prop;
71	struct drm_property	*contrast_prop;
72	struct drm_property	*saturation_prop;
73#ifdef CONFIG_DEBUG_FS
74	struct dentry		*de;
75#endif
76};
77
78void __armada_drm_queue_unref_work(struct drm_device *,
79	struct drm_framebuffer *);
80void armada_drm_queue_unref_work(struct drm_device *,
81	struct drm_framebuffer *);
82
83extern const struct drm_mode_config_funcs armada_drm_mode_config_funcs;
84
85int armada_fbdev_init(struct drm_device *);
86void armada_fbdev_lastclose(struct drm_device *);
87void armada_fbdev_fini(struct drm_device *);
88
89int armada_overlay_plane_create(struct drm_device *, unsigned long);
90
91int armada_drm_debugfs_init(struct drm_minor *);
92void armada_drm_debugfs_cleanup(struct drm_minor *);
93
94#endif