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 #include <drm/drm_crtc.h>
12 
13 struct armada_gem_object;
14 
15 struct armada_regs {
16 	uint32_t offset;
17 	uint32_t mask;
18 	uint32_t val;
19 };
20 
21 #define armada_reg_queue_mod(_r, _i, _v, _m, _o)	\
22 	do {					\
23 		struct armada_regs *__reg = _r;	\
24 		__reg[_i].offset = _o;		\
25 		__reg[_i].mask = ~(_m);		\
26 		__reg[_i].val = _v;		\
27 		_i++;				\
28 	} while (0)
29 
30 #define armada_reg_queue_set(_r, _i, _v, _o)	\
31 	armada_reg_queue_mod(_r, _i, _v, ~0, _o)
32 
33 #define armada_reg_queue_end(_r, _i)		\
34 	armada_reg_queue_mod(_r, _i, 0, 0, ~0)
35 
36 struct armada_crtc;
37 struct armada_variant;
38 
39 struct armada_crtc {
40 	struct drm_crtc		crtc;
41 	const struct armada_variant *variant;
42 	unsigned		num;
43 	void __iomem		*base;
44 	struct clk		*clk;
45 	struct clk		*extclk[2];
46 	struct {
47 		uint32_t	spu_v_h_total;
48 		uint32_t	spu_v_porch;
49 		uint32_t	spu_adv_reg;
50 	} v[2];
51 	bool			interlaced;
52 	bool			cursor_update;
53 
54 	struct armada_gem_object	*cursor_obj;
55 	int			cursor_x;
56 	int			cursor_y;
57 	uint32_t		cursor_hw_pos;
58 	uint32_t		cursor_hw_sz;
59 	uint32_t		cursor_w;
60 	uint32_t		cursor_h;
61 
62 	uint32_t		cfg_dumb_ctrl;
63 	uint32_t		spu_iopad_ctrl;
64 
65 	spinlock_t		irq_lock;
66 	uint32_t		irq_ena;
67 
68 	bool			update_pending;
69 	struct drm_pending_vblank_event *event;
70 	struct armada_regs	atomic_regs[32];
71 	struct armada_regs	*regs;
72 	unsigned int		regs_idx;
73 };
74 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
75 
76 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
77 
78 extern struct platform_driver armada_lcd_platform_driver;
79 
80 #endif
81