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 *,
40 				      struct armada_plane *,
41 				      struct armada_plane_work *);
42 };
43 
44 struct armada_plane_state {
45 	u32 src_hw;
46 	u32 dst_hw;
47 	u32 dst_yx;
48 	u32 ctrl0;
49 };
50 
51 struct armada_plane {
52 	struct drm_plane	base;
53 	wait_queue_head_t	frame_wait;
54 	struct armada_plane_work *work;
55 	struct armada_plane_state state;
56 };
57 #define drm_to_armada_plane(p) container_of(p, struct armada_plane, base)
58 
59 int armada_drm_plane_init(struct armada_plane *plane);
60 int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
61 	struct armada_plane *plane, struct armada_plane_work *work);
62 int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
63 struct armada_plane_work *armada_drm_plane_work_cancel(
64 	struct armada_crtc *dcrtc, struct armada_plane *plane);
65 void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
66 	int x, int y);
67 
68 struct armada_crtc {
69 	struct drm_crtc		crtc;
70 	const struct armada_variant *variant;
71 	unsigned		num;
72 	void __iomem		*base;
73 	struct clk		*clk;
74 	struct clk		*extclk[2];
75 	struct {
76 		uint32_t	spu_v_h_total;
77 		uint32_t	spu_v_porch;
78 		uint32_t	spu_adv_reg;
79 	} v[2];
80 	bool			interlaced;
81 	bool			cursor_update;
82 	uint8_t			csc_yuv_mode;
83 	uint8_t			csc_rgb_mode;
84 
85 	struct drm_plane	*plane;
86 
87 	struct armada_gem_object	*cursor_obj;
88 	int			cursor_x;
89 	int			cursor_y;
90 	uint32_t		cursor_hw_pos;
91 	uint32_t		cursor_hw_sz;
92 	uint32_t		cursor_w;
93 	uint32_t		cursor_h;
94 
95 	int			dpms;
96 	uint32_t		cfg_dumb_ctrl;
97 	uint32_t		dumb_ctrl;
98 	uint32_t		spu_iopad_ctrl;
99 
100 	spinlock_t		irq_lock;
101 	uint32_t		irq_ena;
102 };
103 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
104 
105 void armada_drm_crtc_gamma_set(struct drm_crtc *, u16, u16, u16, int);
106 void armada_drm_crtc_gamma_get(struct drm_crtc *, u16 *, u16 *, u16 *, int);
107 void armada_drm_crtc_disable_irq(struct armada_crtc *, u32);
108 void armada_drm_crtc_enable_irq(struct armada_crtc *, u32);
109 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
110 
111 void armada_drm_crtc_plane_disable(struct armada_crtc *dcrtc,
112 	struct drm_plane *plane);
113 
114 extern struct platform_driver armada_lcd_platform_driver;
115 
116 #endif
117