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      1 /*	$NetBSD: tvnv17.h,v 1.4 2021/12/18 23:45:32 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2009 Francisco Jerez.
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining
      8  * a copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sublicense, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice (including the
     16  * next paragraph) shall be included in all copies or substantial
     17  * portions of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     22  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     23  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     24  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     25  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     26  *
     27  */
     28 
     29 #ifndef __NV17_TV_H__
     30 #define __NV17_TV_H__
     31 
     32 struct nv17_tv_state {
     33 	uint8_t tv_enc[0x40];
     34 
     35 	uint32_t hfilter[4][7];
     36 	uint32_t hfilter2[4][7];
     37 	uint32_t vfilter[4][7];
     38 
     39 	uint32_t ptv_200;
     40 	uint32_t ptv_204;
     41 	uint32_t ptv_208;
     42 	uint32_t ptv_20c;
     43 	uint32_t ptv_304;
     44 	uint32_t ptv_500;
     45 	uint32_t ptv_504;
     46 	uint32_t ptv_508;
     47 	uint32_t ptv_600;
     48 	uint32_t ptv_604;
     49 	uint32_t ptv_608;
     50 	uint32_t ptv_60c;
     51 	uint32_t ptv_610;
     52 	uint32_t ptv_614;
     53 };
     54 
     55 enum nv17_tv_norm{
     56 	TV_NORM_PAL,
     57 	TV_NORM_PAL_M,
     58 	TV_NORM_PAL_N,
     59 	TV_NORM_PAL_NC,
     60 	TV_NORM_NTSC_M,
     61 	TV_NORM_NTSC_J,
     62 	NUM_LD_TV_NORMS,
     63 	TV_NORM_HD480I = NUM_LD_TV_NORMS,
     64 	TV_NORM_HD480P,
     65 	TV_NORM_HD576I,
     66 	TV_NORM_HD576P,
     67 	TV_NORM_HD720P,
     68 	TV_NORM_HD1080I,
     69 	NUM_TV_NORMS
     70 };
     71 
     72 struct nv17_tv_encoder {
     73 	struct nouveau_encoder base;
     74 
     75 	struct nv17_tv_state state;
     76 	struct nv17_tv_state saved_state;
     77 
     78 	int overscan;
     79 	int flicker;
     80 	int saturation;
     81 	int hue;
     82 	enum nv17_tv_norm tv_norm;
     83 	int subconnector;
     84 	int select_subconnector;
     85 	uint32_t pin_mask;
     86 };
     87 #define to_tv_enc(x) container_of(nouveau_encoder(x),		\
     88 				  struct nv17_tv_encoder, base)
     89 
     90 extern const char * const nv17_tv_norm_names[NUM_TV_NORMS];
     91 
     92 extern const struct nv17_tv_norm_params {
     93 	enum {
     94 		TV_ENC_MODE,
     95 		CTV_ENC_MODE,
     96 	} kind;
     97 
     98 	union {
     99 		struct {
    100 			int hdisplay;
    101 			int vdisplay;
    102 			int vrefresh; /* mHz */
    103 
    104 			uint8_t tv_enc[0x40];
    105 		} tv_enc_mode;
    106 
    107 		struct {
    108 			struct drm_display_mode mode;
    109 
    110 			uint32_t ctv_regs[38];
    111 		} ctv_enc_mode;
    112 	};
    113 
    114 } nv17_tv_norms[NUM_TV_NORMS];
    115 #define get_tv_norm(enc) (&nv17_tv_norms[to_tv_enc(enc)->tv_norm])
    116 
    117 extern const struct drm_display_mode nv17_tv_modes[];
    118 
    119 static inline int interpolate(int y0, int y1, int y2, int x)
    120 {
    121 	return y1 + (x < 50 ? y1 - y0 : y2 - y1) * (x - 50) / 50;
    122 }
    123 
    124 void nv17_tv_state_save(struct drm_device *dev, struct nv17_tv_state *state);
    125 void nv17_tv_state_load(struct drm_device *dev, struct nv17_tv_state *state);
    126 void nv17_tv_update_properties(struct drm_encoder *encoder);
    127 void nv17_tv_update_rescaler(struct drm_encoder *encoder);
    128 void nv17_ctv_update_rescaler(struct drm_encoder *encoder);
    129 
    130 /* TV hardware access functions */
    131 
    132 static inline void nv_write_ptv(struct drm_device *dev, uint32_t reg,
    133 				uint32_t val)
    134 {
    135 	struct nvif_device *device = &nouveau_drm(dev)->client.device;
    136 	nvif_wr32(&device->object, reg, val);
    137 }
    138 
    139 static inline uint32_t nv_read_ptv(struct drm_device *dev, uint32_t reg)
    140 {
    141 	struct nvif_device *device = &nouveau_drm(dev)->client.device;
    142 	return nvif_rd32(&device->object, reg);
    143 }
    144 
    145 static inline void nv_write_tv_enc(struct drm_device *dev, uint8_t reg,
    146 				   uint8_t val)
    147 {
    148 	nv_write_ptv(dev, NV_PTV_TV_INDEX, reg);
    149 	nv_write_ptv(dev, NV_PTV_TV_DATA, val);
    150 }
    151 
    152 static inline uint8_t nv_read_tv_enc(struct drm_device *dev, uint8_t reg)
    153 {
    154 	nv_write_ptv(dev, NV_PTV_TV_INDEX, reg);
    155 	return nv_read_ptv(dev, NV_PTV_TV_DATA);
    156 }
    157 
    158 #define nv_load_ptv(dev, state, reg) \
    159 	nv_write_ptv(dev, NV_PTV_OFFSET + 0x##reg, state->ptv_##reg)
    160 #define nv_save_ptv(dev, state, reg) \
    161 	state->ptv_##reg = nv_read_ptv(dev, NV_PTV_OFFSET + 0x##reg)
    162 #define nv_load_tv_enc(dev, state, reg) \
    163 	nv_write_tv_enc(dev, 0x##reg, state->tv_enc[0x##reg])
    164 
    165 #endif
    166