1 /*
2  * Copyright (C) 2009 Francisco Jerez.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 
27 #ifndef __NV17_TV_H__
28 #define __NV17_TV_H__
29 
30 struct nv17_tv_state {
31 	uint8_t tv_enc[0x40];
32 
33 	uint32_t hfilter[4][7];
34 	uint32_t hfilter2[4][7];
35 	uint32_t vfilter[4][7];
36 
37 	uint32_t ptv_200;
38 	uint32_t ptv_204;
39 	uint32_t ptv_208;
40 	uint32_t ptv_20c;
41 	uint32_t ptv_304;
42 	uint32_t ptv_500;
43 	uint32_t ptv_504;
44 	uint32_t ptv_508;
45 	uint32_t ptv_600;
46 	uint32_t ptv_604;
47 	uint32_t ptv_608;
48 	uint32_t ptv_60c;
49 	uint32_t ptv_610;
50 	uint32_t ptv_614;
51 };
52 
53 enum nv17_tv_norm{
54 	TV_NORM_PAL,
55 	TV_NORM_PAL_M,
56 	TV_NORM_PAL_N,
57 	TV_NORM_PAL_NC,
58 	TV_NORM_NTSC_M,
59 	TV_NORM_NTSC_J,
60 	NUM_LD_TV_NORMS,
61 	TV_NORM_HD480I = NUM_LD_TV_NORMS,
62 	TV_NORM_HD480P,
63 	TV_NORM_HD576I,
64 	TV_NORM_HD576P,
65 	TV_NORM_HD720P,
66 	TV_NORM_HD1080I,
67 	NUM_TV_NORMS
68 };
69 
70 struct nv17_tv_encoder {
71 	struct nouveau_encoder base;
72 
73 	struct nv17_tv_state state;
74 	struct nv17_tv_state saved_state;
75 
76 	int overscan;
77 	int flicker;
78 	int saturation;
79 	int hue;
80 	enum nv17_tv_norm tv_norm;
81 	int subconnector;
82 	int select_subconnector;
83 	uint32_t pin_mask;
84 };
85 #define to_tv_enc(x) container_of(nouveau_encoder(x),		\
86 				  struct nv17_tv_encoder, base)
87 
88 extern const char * const nv17_tv_norm_names[NUM_TV_NORMS];
89 
90 extern struct nv17_tv_norm_params {
91 	enum {
92 		TV_ENC_MODE,
93 		CTV_ENC_MODE,
94 	} kind;
95 
96 	union {
97 		struct {
98 			int hdisplay;
99 			int vdisplay;
100 			int vrefresh; /* mHz */
101 
102 			uint8_t tv_enc[0x40];
103 		} tv_enc_mode;
104 
105 		struct {
106 			struct drm_display_mode mode;
107 
108 			uint32_t ctv_regs[38];
109 		} ctv_enc_mode;
110 	};
111 
112 } nv17_tv_norms[NUM_TV_NORMS];
113 #define get_tv_norm(enc) (&nv17_tv_norms[to_tv_enc(enc)->tv_norm])
114 
115 extern const struct drm_display_mode nv17_tv_modes[];
116 
117 static inline int interpolate(int y0, int y1, int y2, int x)
118 {
119 	return y1 + (x < 50 ? y1 - y0 : y2 - y1) * (x - 50) / 50;
120 }
121 
122 void nv17_tv_state_save(struct drm_device *dev, struct nv17_tv_state *state);
123 void nv17_tv_state_load(struct drm_device *dev, struct nv17_tv_state *state);
124 void nv17_tv_update_properties(struct drm_encoder *encoder);
125 void nv17_tv_update_rescaler(struct drm_encoder *encoder);
126 void nv17_ctv_update_rescaler(struct drm_encoder *encoder);
127 
128 /* TV hardware access functions */
129 
130 static inline void nv_write_ptv(struct drm_device *dev, uint32_t reg,
131 				uint32_t val)
132 {
133 	struct nvif_device *device = &nouveau_drm(dev)->client.device;
134 	nvif_wr32(&device->object, reg, val);
135 }
136 
137 static inline uint32_t nv_read_ptv(struct drm_device *dev, uint32_t reg)
138 {
139 	struct nvif_device *device = &nouveau_drm(dev)->client.device;
140 	return nvif_rd32(&device->object, reg);
141 }
142 
143 static inline void nv_write_tv_enc(struct drm_device *dev, uint8_t reg,
144 				   uint8_t val)
145 {
146 	nv_write_ptv(dev, NV_PTV_TV_INDEX, reg);
147 	nv_write_ptv(dev, NV_PTV_TV_DATA, val);
148 }
149 
150 static inline uint8_t nv_read_tv_enc(struct drm_device *dev, uint8_t reg)
151 {
152 	nv_write_ptv(dev, NV_PTV_TV_INDEX, reg);
153 	return nv_read_ptv(dev, NV_PTV_TV_DATA);
154 }
155 
156 #define nv_load_ptv(dev, state, reg) \
157 	nv_write_ptv(dev, NV_PTV_OFFSET + 0x##reg, state->ptv_##reg)
158 #define nv_save_ptv(dev, state, reg) \
159 	state->ptv_##reg = nv_read_ptv(dev, NV_PTV_OFFSET + 0x##reg)
160 #define nv_load_tv_enc(dev, state, reg) \
161 	nv_write_tv_enc(dev, 0x##reg, state->tv_enc[0x##reg])
162 
163 #endif
164