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_CRTC_H
9 #define ARMADA_CRTC_H
10 
11 struct armada_gem_object;
12 
13 struct armada_regs {
14 	uint32_t offset;
15 	uint32_t mask;
16 	uint32_t val;
17 };
18 
19 #define armada_reg_queue_mod(_r, _i, _v, _m, _o)	\
20 	do {					\
21 		struct armada_regs *__reg = _r;	\
22 		__reg[_i].offset = _o;		\
23 		__reg[_i].mask = ~(_m);		\
24 		__reg[_i].val = _v;		\
25 		_i++;				\
26 	} while (0)
27 
28 #define armada_reg_queue_set(_r, _i, _v, _o)	\
29 	armada_reg_queue_mod(_r, _i, _v, ~0, _o)
30 
31 #define armada_reg_queue_end(_r, _i)		\
32 	armada_reg_queue_mod(_r, _i, 0, 0, ~0)
33 
34 struct armada_crtc;
35 struct armada_plane;
36 struct armada_variant;
37 
38 struct armada_plane_work {
39 	void (*fn)(struct armada_crtc *, struct armada_plane_work *);
40 	void (*cancel)(struct armada_crtc *, struct armada_plane_work *);
41 	bool need_kfree;
42 	struct drm_plane *plane;
43 	struct drm_framebuffer *old_fb;
44 	struct drm_pending_vblank_event *event;
45 	struct armada_regs regs[14];
46 };
47 
48 struct armada_plane_state {
49 	u16 src_x;
50 	u16 src_y;
51 	u32 src_hw;
52 	u32 dst_hw;
53 	u32 dst_yx;
54 	u32 ctrl0;
55 	bool changed;
56 	bool vsync_update;
57 };
58 
59 struct armada_plane {
60 	struct drm_plane	base;
61 	wait_queue_head_t	frame_wait;
62 	bool			next_work;
63 	struct armada_plane_work works[2];
64 	struct armada_plane_work *work;
65 	struct armada_plane_state state;
66 };
67 #define drm_to_armada_plane(p) container_of(p, struct armada_plane, base)
68 
69 int armada_drm_plane_init(struct armada_plane *plane);
70 int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
71 	struct armada_plane_work *work);
72 int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
73 void armada_drm_plane_work_cancel(struct armada_crtc *dcrtc,
74 	struct armada_plane *plane);
75 void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
76 	int x, int y);
77 
78 struct armada_crtc {
79 	struct drm_crtc		crtc;
80 	const struct armada_variant *variant;
81 	unsigned		num;
82 	void __iomem		*base;
83 	struct clk		*clk;
84 	struct clk		*extclk[2];
85 	struct {
86 		uint32_t	spu_v_h_total;
87 		uint32_t	spu_v_porch;
88 		uint32_t	spu_adv_reg;
89 	} v[2];
90 	bool			interlaced;
91 	bool			cursor_update;
92 	uint8_t			csc_yuv_mode;
93 	uint8_t			csc_rgb_mode;
94 
95 	struct drm_plane	*plane;
96 
97 	struct armada_gem_object	*cursor_obj;
98 	int			cursor_x;
99 	int			cursor_y;
100 	uint32_t		cursor_hw_pos;
101 	uint32_t		cursor_hw_sz;
102 	uint32_t		cursor_w;
103 	uint32_t		cursor_h;
104 
105 	int			dpms;
106 	uint32_t		cfg_dumb_ctrl;
107 	uint32_t		dumb_ctrl;
108 	uint32_t		spu_iopad_ctrl;
109 
110 	spinlock_t		irq_lock;
111 	uint32_t		irq_ena;
112 };
113 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
114 
115 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
116 
117 int armada_drm_plane_disable(struct drm_plane *plane,
118 			     struct drm_modeset_acquire_ctx *ctx);
119 
120 extern struct platform_driver armada_lcd_platform_driver;
121 
122 #endif
123