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1/*
2 * Copyright 2013 Ilia Mirkin
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 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 *
22 * Implementation based on the pre-KMS implementation in xf86-video-nouveau,
23 * written by Arthur Huillet.
24 */
25
26#include <drm/drmP.h>
27#include <drm/drm_crtc.h>
28#include <drm/drm_fourcc.h>
29
30#include "nouveau_drm.h"
31
32#include "nouveau_bo.h"
33#include "nouveau_connector.h"
34#include "nouveau_display.h"
35#include "nvreg.h"
36
37
38struct nouveau_plane {
39 struct drm_plane base;
40 bool flip;
41 struct nouveau_bo *cur;
42
43 struct {
44 struct drm_property *colorkey;
45 struct drm_property *contrast;
46 struct drm_property *brightness;
47 struct drm_property *hue;
48 struct drm_property *saturation;
49 struct drm_property *iturbt_709;
50 } props;
51
52 int colorkey;
53 int contrast;
54 int brightness;
55 int hue;
56 int saturation;
57 int iturbt_709;
58
59 void (*set_params)(struct nouveau_plane *);
60};
61
62static uint32_t formats[] = {
63 DRM_FORMAT_YUYV,
64 DRM_FORMAT_UYVY,
65 DRM_FORMAT_NV12,
66};
67
68/* Sine can be approximated with
69 * http://en.wikipedia.org/wiki/Bhaskara_I's_sine_approximation_formula
70 * sin(x degrees) ~= 4 x (180 - x) / (40500 - x (180 - x) )
71 * Note that this only works for the range [0, 180].
72 * Also note that sin(x) == -sin(x - 180)
73 */
74static inline int
75sin_mul(int degrees, int factor)
76{
77 if (degrees > 180) {
78 degrees -= 180;
79 factor *= -1;
80 }
81 return factor * 4 * degrees * (180 - degrees) /
82 (40500 - degrees * (180 - degrees));
83}
84
85/* cos(x) = sin(x + 90) */
86static inline int
87cos_mul(int degrees, int factor)
88{
89 return sin_mul((degrees + 90) % 360, factor);
90}
91
92static int
93nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
94 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
95 unsigned int crtc_w, unsigned int crtc_h,
96 uint32_t src_x, uint32_t src_y,
97 uint32_t src_w, uint32_t src_h)
98{
99 struct nouveau_drm *drm = nouveau_drm(plane->dev);
100 struct nvif_object *dev = &drm->device.object;
101 struct nouveau_plane *nv_plane =
102 container_of(plane, struct nouveau_plane, base);
103 struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
104 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
105 struct nouveau_bo *cur = nv_plane->cur;
106 bool flip = nv_plane->flip;
107 int soff = NV_PCRTC0_SIZE * nv_crtc->index;
108 int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
109 int format, ret;
110
111 /* Source parameters given in 16.16 fixed point, ignore fractional. */
112 src_x >>= 16;
113 src_y >>= 16;
114 src_w >>= 16;
115 src_h >>= 16;
116
117 format = ALIGN(src_w * 4, 0x100);
118
119 if (format > 0xffff)
120 return -ERANGE;
121
122 if (drm->device.info.chipset >= 0x30) {
123 if (crtc_w < (src_w >> 1) || crtc_h < (src_h >> 1))
124 return -ERANGE;
125 } else {
126 if (crtc_w < (src_w >> 3) || crtc_h < (src_h >> 3))
127 return -ERANGE;
128 }
129
130 ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
131 if (ret)
132 return ret;
133
134 nv_plane->cur = nv_fb->nvbo;
135
136 nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY);
137 nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
138
139 nvif_wr32(dev, NV_PVIDEO_BASE(flip), 0);
140 nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset);
141 nvif_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
142 nvif_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
143 nvif_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
144 nvif_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h);
145 nvif_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x);
146 nvif_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w);
147
148 if (fb->pixel_format != DRM_FORMAT_UYVY)
149 format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8;
150 if (fb->pixel_format == DRM_FORMAT_NV12)
151 format |= NV_PVIDEO_FORMAT_PLANAR;
152 if (nv_plane->iturbt_709)
153 format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
154 if (nv_plane->colorkey & (1 << 24))
155 format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
156
157 if (fb->pixel_format == DRM_FORMAT_NV12) {
158 nvif_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
159 nvif_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
160 nv_fb->nvbo->bo.offset + fb->offsets[1]);
161 }
162 nvif_wr32(dev, NV_PVIDEO_FORMAT(flip), format);
163 nvif_wr32(dev, NV_PVIDEO_STOP, 0);
164 /* TODO: wait for vblank? */
165 nvif_wr32(dev, NV_PVIDEO_BUFFER, flip ? 0x10 : 0x1);
166 nv_plane->flip = !flip;
167
168 if (cur)
169 nouveau_bo_unpin(cur);
170
171 return 0;
172}
173
174static int
175nv10_disable_plane(struct drm_plane *plane)
176{
177 struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
178 struct nouveau_plane *nv_plane =
179 container_of(plane, struct nouveau_plane, base);
180
181 nvif_wr32(dev, NV_PVIDEO_STOP, 1);
182 if (nv_plane->cur) {
183 nouveau_bo_unpin(nv_plane->cur);
184 nv_plane->cur = NULL;
185 }
186
187 return 0;
188}
189
190static void
191nv_destroy_plane(struct drm_plane *plane)
192{
193 plane->funcs->disable_plane(plane);
194 drm_plane_cleanup(plane);
195 kfree(plane);
196}
197
198static void
199nv10_set_params(struct nouveau_plane *plane)
200{
201 struct nvif_object *dev = &nouveau_drm(plane->base.dev)->device.object;
202 u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
203 u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
204 (cos_mul(plane->hue, plane->saturation) & 0xffff);
205 u32 format = 0;
206
207 nvif_wr32(dev, NV_PVIDEO_LUMINANCE(0), luma);
208 nvif_wr32(dev, NV_PVIDEO_LUMINANCE(1), luma);
209 nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(0), chroma);
210 nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(1), chroma);
211 nvif_wr32(dev, NV_PVIDEO_COLOR_KEY, plane->colorkey & 0xffffff);
212
213 if (plane->cur) {
214 if (plane->iturbt_709)
215 format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
216 if (plane->colorkey & (1 << 24))
217 format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
218 nvif_mask(dev, NV_PVIDEO_FORMAT(plane->flip),
219 NV_PVIDEO_FORMAT_MATRIX_ITURBT709 |
220 NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY,
221 format);
222 }
223}
224
225static int
226nv_set_property(struct drm_plane *plane,
227 struct drm_property *property,
228 uint64_t value)
229{
230 struct nouveau_plane *nv_plane =
231 container_of(plane, struct nouveau_plane, base);
232
233 if (property == nv_plane->props.colorkey)
234 nv_plane->colorkey = value;
235 else if (property == nv_plane->props.contrast)
236 nv_plane->contrast = value;
237 else if (property == nv_plane->props.brightness)
238 nv_plane->brightness = value;
239 else if (property == nv_plane->props.hue)
240 nv_plane->hue = value;
241 else if (property == nv_plane->props.saturation)
242 nv_plane->saturation = value;
243 else if (property == nv_plane->props.iturbt_709)
244 nv_plane->iturbt_709 = value;
245 else
246 return -EINVAL;
247
248 if (nv_plane->set_params)
249 nv_plane->set_params(nv_plane);
250 return 0;
251}
252
253static const struct drm_plane_funcs nv10_plane_funcs = {
254 .update_plane = nv10_update_plane,
255 .disable_plane = nv10_disable_plane,
256 .set_property = nv_set_property,
257 .destroy = nv_destroy_plane,
258};
259
260static void
261nv10_overlay_init(struct drm_device *device)
262{
263 struct nouveau_drm *drm = nouveau_drm(device);
264 struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
265 unsigned int num_formats = ARRAY_SIZE(formats);
266 int ret;
267
268 if (!plane)
269 return;
270
271 switch (drm->device.info.chipset) {
272 case 0x10:
273 case 0x11:
274 case 0x15:
275 case 0x1a:
276 case 0x20:
277 num_formats = 2;
278 break;
279 }
280
281 ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */,
282 &nv10_plane_funcs,
283 formats, num_formats, false);
284 if (ret)
285 goto err;
286
287 /* Set up the plane properties */
288 plane->props.colorkey = drm_property_create_range(
289 device, 0, "colorkey", 0, 0x01ffffff);
290 plane->props.contrast = drm_property_create_range(
291 device, 0, "contrast", 0, 8192 - 1);
292 plane->props.brightness = drm_property_create_range(
293 device, 0, "brightness", 0, 1024);
294 plane->props.hue = drm_property_create_range(
295 device, 0, "hue", 0, 359);
296 plane->props.saturation = drm_property_create_range(
297 device, 0, "saturation", 0, 8192 - 1);
298 plane->props.iturbt_709 = drm_property_create_range(
299 device, 0, "iturbt_709", 0, 1);
300 if (!plane->props.colorkey ||
301 !plane->props.contrast ||
302 !plane->props.brightness ||
303 !plane->props.hue ||
304 !plane->props.saturation ||
305 !plane->props.iturbt_709)
306 goto cleanup;
307
308 plane->colorkey = 0;
309 drm_object_attach_property(&plane->base.base,
310 plane->props.colorkey, plane->colorkey);
311
312 plane->contrast = 0x1000;
313 drm_object_attach_property(&plane->base.base,
314 plane->props.contrast, plane->contrast);
315
316 plane->brightness = 512;
317 drm_object_attach_property(&plane->base.base,
318 plane->props.brightness, plane->brightness);
319
320 plane->hue = 0;
321 drm_object_attach_property(&plane->base.base,
322 plane->props.hue, plane->hue);
323
324 plane->saturation = 0x1000;
325 drm_object_attach_property(&plane->base.base,
326 plane->props.saturation, plane->saturation);
327
328 plane->iturbt_709 = 0;
329 drm_object_attach_property(&plane->base.base,
330 plane->props.iturbt_709, plane->iturbt_709);
331
332 plane->set_params = nv10_set_params;
333 nv10_set_params(plane);
334 nv10_disable_plane(&plane->base);
335 return;
336cleanup:
337 drm_plane_cleanup(&plane->base);
338err:
339 kfree(plane);
340 NV_ERROR(drm, "Failed to create plane\n");
341}
342
343static int
344nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
345 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
346 unsigned int crtc_w, unsigned int crtc_h,
347 uint32_t src_x, uint32_t src_y,
348 uint32_t src_w, uint32_t src_h)
349{
350 struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
351 struct nouveau_plane *nv_plane =
352 container_of(plane, struct nouveau_plane, base);
353 struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
354 struct nouveau_bo *cur = nv_plane->cur;
355 uint32_t overlay = 1;
356 int brightness = (nv_plane->brightness - 512) * 62 / 512;
357 int pitch, ret, i;
358
359 /* Source parameters given in 16.16 fixed point, ignore fractional. */
360 src_x >>= 16;
361 src_y >>= 16;
362 src_w >>= 16;
363 src_h >>= 16;
364
365 pitch = ALIGN(src_w * 4, 0x100);
366
367 if (pitch > 0xffff)
368 return -ERANGE;
369
370 /* TODO: Compute an offset? Not sure how to do this for YUYV. */
371 if (src_x != 0 || src_y != 0)
372 return -ERANGE;
373
374 if (crtc_w < src_w || crtc_h < src_h)
375 return -ERANGE;
376
377 ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
378 if (ret)
379 return ret;
380
381 nv_plane->cur = nv_fb->nvbo;
382
383 nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
384 nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
385 nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
386
387 for (i = 0; i < 2; i++) {
388 nvif_wr32(dev, NV_PVIDEO_BUFF0_START_ADDRESS + 4 * i,
389 nv_fb->nvbo->bo.offset);
390 nvif_wr32(dev, NV_PVIDEO_BUFF0_PITCH_LENGTH + 4 * i, pitch);
391 nvif_wr32(dev, NV_PVIDEO_BUFF0_OFFSET + 4 * i, 0);
392 }
393 nvif_wr32(dev, NV_PVIDEO_WINDOW_START, crtc_y << 16 | crtc_x);
394 nvif_wr32(dev, NV_PVIDEO_WINDOW_SIZE, crtc_h << 16 | crtc_w);
395 nvif_wr32(dev, NV_PVIDEO_STEP_SIZE,
396 (uint32_t)(((src_h - 1) << 11) / (crtc_h - 1)) << 16 | (uint32_t)(((src_w - 1) << 11) / (crtc_w - 1)));
397
398 /* It should be possible to convert hue/contrast to this */
399 nvif_wr32(dev, NV_PVIDEO_RED_CSC_OFFSET, 0x69 - brightness);
400 nvif_wr32(dev, NV_PVIDEO_GREEN_CSC_OFFSET, 0x3e + brightness);
401 nvif_wr32(dev, NV_PVIDEO_BLUE_CSC_OFFSET, 0x89 - brightness);
402 nvif_wr32(dev, NV_PVIDEO_CSC_ADJUST, 0);
403
404 nvif_wr32(dev, NV_PVIDEO_CONTROL_Y, 0x001); /* (BLUR_ON, LINE_HALF) */
405 nvif_wr32(dev, NV_PVIDEO_CONTROL_X, 0x111); /* (WEIGHT_HEAVY, SHARPENING_ON, SMOOTHING_ON) */
406
407 nvif_wr32(dev, NV_PVIDEO_FIFO_BURST_LENGTH, 0x03);
408 nvif_wr32(dev, NV_PVIDEO_FIFO_THRES_SIZE, 0x38);
409
410 nvif_wr32(dev, NV_PVIDEO_KEY, nv_plane->colorkey);
411
412 if (nv_plane->colorkey & (1 << 24))
413 overlay |= 0x10;
414 if (fb->pixel_format == DRM_FORMAT_YUYV)
415 overlay |= 0x100;
416
417 nvif_wr32(dev, NV_PVIDEO_OVERLAY, overlay);
418
419 nvif_wr32(dev, NV_PVIDEO_SU_STATE, nvif_rd32(dev, NV_PVIDEO_SU_STATE) ^ (1 << 16));
420
421 if (cur)
422 nouveau_bo_unpin(cur);
423
424 return 0;
425}
426
427static int
428nv04_disable_plane(struct drm_plane *plane)
429{
430 struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
431 struct nouveau_plane *nv_plane =
432 container_of(plane, struct nouveau_plane, base);
433
434 nvif_mask(dev, NV_PVIDEO_OVERLAY, 1, 0);
435 nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
436 nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
437 nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
438 if (nv_plane->cur) {
439 nouveau_bo_unpin(nv_plane->cur);
440 nv_plane->cur = NULL;
441 }
442
443 return 0;
444}
445
446static const struct drm_plane_funcs nv04_plane_funcs = {
447 .update_plane = nv04_update_plane,
448 .disable_plane = nv04_disable_plane,
449 .set_property = nv_set_property,
450 .destroy = nv_destroy_plane,
451};
452
453static void
454nv04_overlay_init(struct drm_device *device)
455{
456 struct nouveau_drm *drm = nouveau_drm(device);
457 struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
458 int ret;
459
460 if (!plane)
461 return;
462
463 ret = drm_plane_init(device, &plane->base, 1 /* single crtc */,
464 &nv04_plane_funcs,
465 formats, 2, false);
466 if (ret)
467 goto err;
468
469 /* Set up the plane properties */
470 plane->props.colorkey = drm_property_create_range(
471 device, 0, "colorkey", 0, 0x01ffffff);
472 plane->props.brightness = drm_property_create_range(
473 device, 0, "brightness", 0, 1024);
474 if (!plane->props.colorkey ||
475 !plane->props.brightness)
476 goto cleanup;
477
478 plane->colorkey = 0;
479 drm_object_attach_property(&plane->base.base,
480 plane->props.colorkey, plane->colorkey);
481
482 plane->brightness = 512;
483 drm_object_attach_property(&plane->base.base,
484 plane->props.brightness, plane->brightness);
485
486 nv04_disable_plane(&plane->base);
487 return;
488cleanup:
489 drm_plane_cleanup(&plane->base);
490err:
491 kfree(plane);
492 NV_ERROR(drm, "Failed to create plane\n");
493}
494
495void
496nouveau_overlay_init(struct drm_device *device)
497{
498 struct nvif_device *dev = &nouveau_drm(device)->device;
499 if (dev->info.chipset < 0x10)
500 nv04_overlay_init(device);
501 else if (dev->info.chipset <= 0x40)
502 nv10_overlay_init(device);
503}