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_variant;
36 
37 struct armada_crtc {
38 	struct drm_crtc		crtc;
39 	const struct armada_variant *variant;
40 	unsigned		num;
41 	void __iomem		*base;
42 	struct clk		*clk;
43 	struct clk		*extclk[2];
44 	struct {
45 		uint32_t	spu_v_h_total;
46 		uint32_t	spu_v_porch;
47 		uint32_t	spu_adv_reg;
48 	} v[2];
49 	bool			interlaced;
50 	bool			cursor_update;
51 
52 	struct armada_gem_object	*cursor_obj;
53 	int			cursor_x;
54 	int			cursor_y;
55 	uint32_t		cursor_hw_pos;
56 	uint32_t		cursor_hw_sz;
57 	uint32_t		cursor_w;
58 	uint32_t		cursor_h;
59 
60 	uint32_t		cfg_dumb_ctrl;
61 	uint32_t		spu_iopad_ctrl;
62 
63 	spinlock_t		irq_lock;
64 	uint32_t		irq_ena;
65 
66 	bool			update_pending;
67 	struct drm_pending_vblank_event *event;
68 	struct armada_regs	atomic_regs[32];
69 	struct armada_regs	*regs;
70 	unsigned int		regs_idx;
71 };
72 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
73 
74 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
75 
76 extern struct platform_driver armada_lcd_platform_driver;
77 
78 #endif
79