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_frame_work;
35 
36 struct armada_crtc {
37 	struct drm_crtc		crtc;
38 	unsigned		num;
39 	void __iomem		*base;
40 	struct clk		*clk;
41 	struct {
42 		uint32_t	spu_v_h_total;
43 		uint32_t	spu_v_porch;
44 		uint32_t	spu_adv_reg;
45 	} v[2];
46 	bool			interlaced;
47 	bool			cursor_update;
48 	uint8_t			csc_yuv_mode;
49 	uint8_t			csc_rgb_mode;
50 
51 	struct drm_plane	*plane;
52 
53 	struct armada_gem_object	*cursor_obj;
54 	int			cursor_x;
55 	int			cursor_y;
56 	uint32_t		cursor_hw_pos;
57 	uint32_t		cursor_hw_sz;
58 	uint32_t		cursor_w;
59 	uint32_t		cursor_h;
60 
61 	int			dpms;
62 	uint32_t		cfg_dumb_ctrl;
63 	uint32_t		dumb_ctrl;
64 	uint32_t		spu_iopad_ctrl;
65 
66 	wait_queue_head_t	frame_wait;
67 	struct armada_frame_work *frame_work;
68 
69 	spinlock_t		irq_lock;
70 	uint32_t		irq_ena;
71 	struct list_head	vbl_list;
72 };
73 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
74 
75 int armada_drm_crtc_create(struct drm_device *, unsigned, struct resource *);
76 void armada_drm_crtc_gamma_set(struct drm_crtc *, u16, u16, u16, int);
77 void armada_drm_crtc_gamma_get(struct drm_crtc *, u16 *, u16 *, u16 *, int);
78 void armada_drm_crtc_irq(struct armada_crtc *, u32);
79 void armada_drm_crtc_disable_irq(struct armada_crtc *, u32);
80 void armada_drm_crtc_enable_irq(struct armada_crtc *, u32);
81 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
82 
83 #endif
84