1 /*
2  * Copyright 2018 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 #include "head.h"
23 #include "atom.h"
24 #include "core.h"
25 
26 #include <nvif/pushc37b.h>
27 
28 #include <nvhw/class/clc57d.h>
29 
30 static int
31 headc57d_or(struct nv50_head *head, struct nv50_head_atom *asyh)
32 {
33 	struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
34 	const int i = head->base.index;
35 	u8 depth;
36 	int ret;
37 
38 	/*XXX: This is a dirty hack until OR depth handling is
39 	 *     improved later for deep colour etc.
40 	 */
41 	switch (asyh->or.depth) {
42 	case 6: depth = 5; break;
43 	case 5: depth = 4; break;
44 	case 2: depth = 1; break;
45 	case 0:	depth = 4; break;
46 	default:
47 		depth = asyh->or.depth;
48 		WARN_ON(1);
49 		break;
50 	}
51 
52 	if ((ret = PUSH_WAIT(push, 2)))
53 		return ret;
54 
55 	PUSH_MTHD(push, NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE(i),
56 		  NVVAL(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, CRC_MODE, asyh->or.crc_raster) |
57 		  NVVAL(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, HSYNC_POLARITY, asyh->or.nhsync) |
58 		  NVVAL(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, VSYNC_POLARITY, asyh->or.nvsync) |
59 		  NVVAL(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, PIXEL_DEPTH, depth) |
60 		  NVDEF(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, COLOR_SPACE_OVERRIDE, DISABLE) |
61 		  NVDEF(NVC57D, HEAD_SET_CONTROL_OUTPUT_RESOURCE, EXT_PACKET_WIN, NONE));
62 	return 0;
63 }
64 
65 static int
66 headc57d_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
67 {
68 	struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
69 	const int i = head->base.index;
70 	int ret;
71 
72 	if ((ret = PUSH_WAIT(push, 2)))
73 		return ret;
74 
75 	//TODO:
76 	PUSH_MTHD(push, NVC57D, HEAD_SET_PROCAMP(i),
77 		  NVDEF(NVC57D, HEAD_SET_PROCAMP, COLOR_SPACE, RGB) |
78 		  NVDEF(NVC57D, HEAD_SET_PROCAMP, CHROMA_LPF, DISABLE) |
79 		  NVDEF(NVC57D, HEAD_SET_PROCAMP, DYNAMIC_RANGE, VESA));
80 	return 0;
81 }
82 
83 static int
84 headc57d_olut_clr(struct nv50_head *head)
85 {
86 	struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
87 	const int i = head->base.index;
88 	int ret;
89 
90 	if ((ret = PUSH_WAIT(push, 2)))
91 		return ret;
92 
93 	PUSH_MTHD(push, NVC57D, HEAD_SET_CONTEXT_DMA_OLUT(i), 0x00000000);
94 	return 0;
95 }
96 
97 static int
98 headc57d_olut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
99 {
100 	struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
101 	const int i = head->base.index;
102 	int ret;
103 
104 	if ((ret = PUSH_WAIT(push, 5)))
105 		return ret;
106 
107 	PUSH_MTHD(push, NVC57D, HEAD_SET_OLUT_CONTROL(i),
108 		  NVVAL(NVC57D, HEAD_SET_OLUT_CONTROL, INTERPOLATE, asyh->olut.output_mode) |
109 		  NVDEF(NVC57D, HEAD_SET_OLUT_CONTROL, MIRROR, DISABLE) |
110 		  NVVAL(NVC57D, HEAD_SET_OLUT_CONTROL, MODE, asyh->olut.mode) |
111 		  NVVAL(NVC57D, HEAD_SET_OLUT_CONTROL, SIZE, asyh->olut.size),
112 
113 				HEAD_SET_OLUT_FP_NORM_SCALE(i), 0xffffffff,
114 				HEAD_SET_CONTEXT_DMA_OLUT(i), asyh->olut.handle,
115 				HEAD_SET_OFFSET_OLUT(i), asyh->olut.offset >> 8);
116 	return 0;
117 }
118 
119 static void
120 headc57d_olut_load_8(struct drm_color_lut *in, int size, void __iomem *mem)
121 {
122 	memset_io(mem, 0x00, 0x20); /* VSS header. */
123 	mem += 0x20;
124 
125 	while (size--) {
126 		u16 r = drm_color_lut_extract(in->  red + 0, 16);
127 		u16 g = drm_color_lut_extract(in->green + 0, 16);
128 		u16 b = drm_color_lut_extract(in-> blue + 0, 16);
129 		u16 ri = 0, gi = 0, bi = 0, i;
130 
131 		if (in++, size) {
132 			ri = (drm_color_lut_extract(in->  red, 16) - r) / 4;
133 			gi = (drm_color_lut_extract(in->green, 16) - g) / 4;
134 			bi = (drm_color_lut_extract(in-> blue, 16) - b) / 4;
135 		}
136 
137 		for (i = 0; i < 4; i++, mem += 8) {
138 			writew(r + ri * i, mem + 0);
139 			writew(g + gi * i, mem + 2);
140 			writew(b + bi * i, mem + 4);
141 		}
142 	}
143 
144 	/* INTERPOLATE modes require a "next" entry to interpolate with,
145 	 * so we replicate the last entry to deal with this for now.
146 	 */
147 	writew(readw(mem - 8), mem + 0);
148 	writew(readw(mem - 6), mem + 2);
149 	writew(readw(mem - 4), mem + 4);
150 }
151 
152 static void
153 headc57d_olut_load(struct drm_color_lut *in, int size, void __iomem *mem)
154 {
155 	memset_io(mem, 0x00, 0x20); /* VSS header. */
156 	mem += 0x20;
157 
158 	for (; size--; in++, mem += 0x08) {
159 		writew(drm_color_lut_extract(in->  red, 16), mem + 0);
160 		writew(drm_color_lut_extract(in->green, 16), mem + 2);
161 		writew(drm_color_lut_extract(in-> blue, 16), mem + 4);
162 	}
163 
164 	/* INTERPOLATE modes require a "next" entry to interpolate with,
165 	 * so we replicate the last entry to deal with this for now.
166 	 */
167 	writew(readw(mem - 8), mem + 0);
168 	writew(readw(mem - 6), mem + 2);
169 	writew(readw(mem - 4), mem + 4);
170 }
171 
172 static bool
173 headc57d_olut(struct nv50_head *head, struct nv50_head_atom *asyh, int size)
174 {
175 	if (size != 0 && size != 256 && size != 1024)
176 		return false;
177 
178 	asyh->olut.mode = NVC57D_HEAD_SET_OLUT_CONTROL_MODE_DIRECT10;
179 	asyh->olut.size = 4 /* VSS header. */ + 1024 + 1 /* Entries. */;
180 	asyh->olut.output_mode = NVC57D_HEAD_SET_OLUT_CONTROL_INTERPOLATE_ENABLE;
181 	if (size == 256)
182 		asyh->olut.load = headc57d_olut_load_8;
183 	else
184 		asyh->olut.load = headc57d_olut_load;
185 	return true;
186 }
187 
188 static int
189 headc57d_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
190 {
191 	struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
192 	struct nv50_head_mode *m = &asyh->mode;
193 	const int i = head->base.index;
194 	int ret;
195 
196 	if ((ret = PUSH_WAIT(push, 15)))
197 		return ret;
198 
199 	PUSH_MTHD(push, NVC57D, HEAD_SET_RASTER_SIZE(i),
200 		  NVVAL(NVC57D, HEAD_SET_RASTER_SIZE, WIDTH, m->h.active) |
201 		  NVVAL(NVC57D, HEAD_SET_RASTER_SIZE, HEIGHT, m->v.active),
202 
203 				HEAD_SET_RASTER_SYNC_END(i),
204 		  NVVAL(NVC57D, HEAD_SET_RASTER_SYNC_END, X, m->h.synce) |
205 		  NVVAL(NVC57D, HEAD_SET_RASTER_SYNC_END, Y, m->v.synce),
206 
207 				HEAD_SET_RASTER_BLANK_END(i),
208 		  NVVAL(NVC57D, HEAD_SET_RASTER_BLANK_END, X, m->h.blanke) |
209 		  NVVAL(NVC57D, HEAD_SET_RASTER_BLANK_END, Y, m->v.blanke),
210 
211 				HEAD_SET_RASTER_BLANK_START(i),
212 		  NVVAL(NVC57D, HEAD_SET_RASTER_BLANK_START, X, m->h.blanks) |
213 		  NVVAL(NVC57D, HEAD_SET_RASTER_BLANK_START, Y, m->v.blanks));
214 
215 	//XXX:
216 	PUSH_NVSQ(push, NVC57D, 0x2074 + (i * 0x400), m->v.blank2e << 16 | m->v.blank2s);
217 	PUSH_NVSQ(push, NVC57D, 0x2008 + (i * 0x400), m->interlace);
218 
219 	PUSH_MTHD(push, NVC57D, HEAD_SET_PIXEL_CLOCK_FREQUENCY(i),
220 		  NVVAL(NVC57D, HEAD_SET_PIXEL_CLOCK_FREQUENCY, HERTZ, m->clock * 1000));
221 
222 	PUSH_MTHD(push, NVC57D, HEAD_SET_PIXEL_CLOCK_FREQUENCY_MAX(i),
223 		  NVVAL(NVC57D, HEAD_SET_PIXEL_CLOCK_FREQUENCY_MAX, HERTZ, m->clock * 1000));
224 
225 	/*XXX: HEAD_USAGE_BOUNDS, doesn't belong here. */
226 	PUSH_MTHD(push, NVC57D, HEAD_SET_HEAD_USAGE_BOUNDS(i),
227 		  NVDEF(NVC57D, HEAD_SET_HEAD_USAGE_BOUNDS, CURSOR, USAGE_W256_H256) |
228 		  NVDEF(NVC57D, HEAD_SET_HEAD_USAGE_BOUNDS, OLUT_ALLOWED, TRUE) |
229 		  NVDEF(NVC57D, HEAD_SET_HEAD_USAGE_BOUNDS, OUTPUT_SCALER_TAPS, TAPS_2) |
230 		  NVDEF(NVC57D, HEAD_SET_HEAD_USAGE_BOUNDS, UPSCALING_ALLOWED, TRUE));
231 	return 0;
232 }
233 
234 const struct nv50_head_func
235 headc57d = {
236 	.view = headc37d_view,
237 	.mode = headc57d_mode,
238 	.olut = headc57d_olut,
239 	.ilut_check = head907d_ilut_check,
240 	.olut_identity = true,
241 	.olut_size = 1024,
242 	.olut_set = headc57d_olut_set,
243 	.olut_clr = headc57d_olut_clr,
244 	.curs_layout = head917d_curs_layout,
245 	.curs_format = headc37d_curs_format,
246 	.curs_set = headc37d_curs_set,
247 	.curs_clr = headc37d_curs_clr,
248 	.dither = headc37d_dither,
249 	.procamp = headc57d_procamp,
250 	.or = headc57d_or,
251 	/* TODO: flexible window mappings */
252 	.static_wndw_map = headc37d_static_wndw_map,
253 };
254