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