kernel/drivers/gpu/drm/nouveau/dispnv04/overlay.c

   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
  38 struct 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
  62 static 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  */
  74 static inline int
  75 sin_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) */
  86 static inline int
  87 cos_mul(int degrees, int factor)
  88 {
  89         return sin_mul((degrees + 90) % 360, factor);
  90 }
  91
  92 static int
  93 nv10_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 nvif_device *dev = &nouveau_drm(plane->dev)->device;
 100         struct nouveau_plane *nv_plane =
 101                 container_of(plane, struct nouveau_plane, base);
 102         struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 103         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 104         struct nouveau_bo *cur = nv_plane->cur;
 105         bool flip = nv_plane->flip;
 106         int soff = NV_PCRTC0_SIZE * nv_crtc->index;
 107         int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
 108         int format, ret;
 109
 110         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 111         src_x >>= 16;
 112         src_y >>= 16;
 113         src_w >>= 16;
 114         src_h >>= 16;
 115
 116         format = ALIGN(src_w * 4, 0x100);
 117
 118         if (format > 0xffff)
 119                 return -ERANGE;
 120
 121         if (dev->info.chipset >= 0x30) {
 122                 if (crtc_w < (src_w >> 1) || crtc_h < (src_h >> 1))
 123                         return -ERANGE;
 124         } else {
 125                 if (crtc_w < (src_w >> 3) || crtc_h < (src_h >> 3))
 126                         return -ERANGE;
 127         }
 128
 129         ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
 130         if (ret)
 131                 return ret;
 132
 133         nv_plane->cur = nv_fb->nvbo;
 134
 135         nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY);
 136         nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
 137
 138         nvif_wr32(dev, NV_PVIDEO_BASE(flip), 0);
 139         nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset);
 140         nvif_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
 141         nvif_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
 142         nvif_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
 143         nvif_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h);
 144         nvif_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x);
 145         nvif_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w);
 146
 147         if (fb->pixel_format != DRM_FORMAT_UYVY)
 148                 format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8;
 149         if (fb->pixel_format == DRM_FORMAT_NV12)
 150                 format |= NV_PVIDEO_FORMAT_PLANAR;
 151         if (nv_plane->iturbt_709)
 152                 format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 153         if (nv_plane->colorkey & (1 << 24))
 154                 format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 155
 156         if (fb->pixel_format == DRM_FORMAT_NV12) {
 157                 nvif_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
 158                 nvif_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
 159                         nv_fb->nvbo->bo.offset + fb->offsets[1]);
 160         }
 161         nvif_wr32(dev, NV_PVIDEO_FORMAT(flip), format);
 162         nvif_wr32(dev, NV_PVIDEO_STOP, 0);
 163         /* TODO: wait for vblank? */
 164         nvif_wr32(dev, NV_PVIDEO_BUFFER, flip ? 0x10 : 0x1);
 165         nv_plane->flip = !flip;
 166
 167         if (cur)
 168                 nouveau_bo_unpin(cur);
 169
 170         return 0;
 171 }
 172
 173 static int
 174 nv10_disable_plane(struct drm_plane *plane)
 175 {
 176         struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
 177         struct nouveau_plane *nv_plane =
 178                 container_of(plane, struct nouveau_plane, base);
 179
 180         nvif_wr32(dev, NV_PVIDEO_STOP, 1);
 181         if (nv_plane->cur) {
 182                 nouveau_bo_unpin(nv_plane->cur);
 183                 nv_plane->cur = NULL;
 184         }
 185
 186         return 0;
 187 }
 188
 189 static void
 190 nv_destroy_plane(struct drm_plane *plane)
 191 {
 192         plane->funcs->disable_plane(plane);
 193         drm_plane_cleanup(plane);
 194         kfree(plane);
 195 }
 196
 197 static void
 198 nv10_set_params(struct nouveau_plane *plane)
 199 {
 200         struct nvif_device *dev = &nouveau_drm(plane->base.dev)->device;
 201         u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
 202         u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
 203                 (cos_mul(plane->hue, plane->saturation) & 0xffff);
 204         u32 format = 0;
 205
 206         nvif_wr32(dev, NV_PVIDEO_LUMINANCE(0), luma);
 207         nvif_wr32(dev, NV_PVIDEO_LUMINANCE(1), luma);
 208         nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(0), chroma);
 209         nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(1), chroma);
 210         nvif_wr32(dev, NV_PVIDEO_COLOR_KEY, plane->colorkey & 0xffffff);
 211
 212         if (plane->cur) {
 213                 if (plane->iturbt_709)
 214                         format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 215                 if (plane->colorkey & (1 << 24))
 216                         format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 217                 nvif_mask(dev, NV_PVIDEO_FORMAT(plane->flip),
 218                         NV_PVIDEO_FORMAT_MATRIX_ITURBT709 |
 219                         NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY,
 220                         format);
 221         }
 222 }
 223
 224 static int
 225 nv_set_property(struct drm_plane *plane,
 226                 struct drm_property *property,
 227                 uint64_t value)
 228 {
 229         struct nouveau_plane *nv_plane =
 230                 container_of(plane, struct nouveau_plane, base);
 231
 232         if (property == nv_plane->props.colorkey)
 233                 nv_plane->colorkey = value;
 234         else if (property == nv_plane->props.contrast)
 235                 nv_plane->contrast = value;
 236         else if (property == nv_plane->props.brightness)
 237                 nv_plane->brightness = value;
 238         else if (property == nv_plane->props.hue)
 239                 nv_plane->hue = value;
 240         else if (property == nv_plane->props.saturation)
 241                 nv_plane->saturation = value;
 242         else if (property == nv_plane->props.iturbt_709)
 243                 nv_plane->iturbt_709 = value;
 244         else
 245                 return -EINVAL;
 246
 247         if (nv_plane->set_params)
 248                 nv_plane->set_params(nv_plane);
 249         return 0;
 250 }
 251
 252 static const struct drm_plane_funcs nv10_plane_funcs = {
 253         .update_plane = nv10_update_plane,
 254         .disable_plane = nv10_disable_plane,
 255         .set_property = nv_set_property,
 256         .destroy = nv_destroy_plane,
 257 };
 258
 259 static void
 260 nv10_overlay_init(struct drm_device *device)
 261 {
 262         struct nouveau_drm *drm = nouveau_drm(device);
 263         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 264         int num_formats = ARRAY_SIZE(formats);
 265         int ret;
 266
 267         if (!plane)
 268                 return;
 269
 270         switch (drm->device.info.chipset) {
 271         case 0x10:
 272         case 0x11:
 273         case 0x15:
 274         case 0x1a:
 275         case 0x20:
 276                 num_formats = 2;
 277                 break;
 278         }
 279
 280         ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */,
 281                              &nv10_plane_funcs,
 282                              formats, num_formats, false);
 283         if (ret)
 284                 goto err;
 285
 286         /* Set up the plane properties */
 287         plane->props.colorkey = drm_property_create_range(
 288                         device, 0, "colorkey", 0, 0x01ffffff);
 289         plane->props.contrast = drm_property_create_range(
 290                         device, 0, "contrast", 0, 8192 - 1);
 291         plane->props.brightness = drm_property_create_range(
 292                         device, 0, "brightness", 0, 1024);
 293         plane->props.hue = drm_property_create_range(
 294                         device, 0, "hue", 0, 359);
 295         plane->props.saturation = drm_property_create_range(
 296                         device, 0, "saturation", 0, 8192 - 1);
 297         plane->props.iturbt_709 = drm_property_create_range(
 298                         device, 0, "iturbt_709", 0, 1);
 299         if (!plane->props.colorkey ||
 300             !plane->props.contrast ||
 301             !plane->props.brightness ||
 302             !plane->props.hue ||
 303             !plane->props.saturation ||
 304             !plane->props.iturbt_709)
 305                 goto cleanup;
 306
 307         plane->colorkey = 0;
 308         drm_object_attach_property(&plane->base.base,
 309                                    plane->props.colorkey, plane->colorkey);
 310
 311         plane->contrast = 0x1000;
 312         drm_object_attach_property(&plane->base.base,
 313                                    plane->props.contrast, plane->contrast);
 314
 315         plane->brightness = 512;
 316         drm_object_attach_property(&plane->base.base,
 317                                    plane->props.brightness, plane->brightness);
 318
 319         plane->hue = 0;
 320         drm_object_attach_property(&plane->base.base,
 321                                    plane->props.hue, plane->hue);
 322
 323         plane->saturation = 0x1000;
 324         drm_object_attach_property(&plane->base.base,
 325                                    plane->props.saturation, plane->saturation);
 326
 327         plane->iturbt_709 = 0;
 328         drm_object_attach_property(&plane->base.base,
 329                                    plane->props.iturbt_709, plane->iturbt_709);
 330
 331         plane->set_params = nv10_set_params;
 332         nv10_set_params(plane);
 333         nv10_disable_plane(&plane->base);
 334         return;
 335 cleanup:
 336         drm_plane_cleanup(&plane->base);
 337 err:
 338         kfree(plane);
 339         NV_ERROR(drm, "Failed to create plane\n");
 340 }
 341
 342 static int
 343 nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 344                   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 345                   unsigned int crtc_w, unsigned int crtc_h,
 346                   uint32_t src_x, uint32_t src_y,
 347                   uint32_t src_w, uint32_t src_h)
 348 {
 349         struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
 350         struct nouveau_plane *nv_plane =
 351                 container_of(plane, struct nouveau_plane, base);
 352         struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 353         struct nouveau_bo *cur = nv_plane->cur;
 354         uint32_t overlay = 1;
 355         int brightness = (nv_plane->brightness - 512) * 62 / 512;
 356         int pitch, ret, i;
 357
 358         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 359         src_x >>= 16;
 360         src_y >>= 16;
 361         src_w >>= 16;
 362         src_h >>= 16;
 363
 364         pitch = ALIGN(src_w * 4, 0x100);
 365
 366         if (pitch > 0xffff)
 367                 return -ERANGE;
 368
 369         /* TODO: Compute an offset? Not sure how to do this for YUYV. */
 370         if (src_x != 0 || src_y != 0)
 371                 return -ERANGE;
 372
 373         if (crtc_w < src_w || crtc_h < src_h)
 374                 return -ERANGE;
 375
 376         ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
 377         if (ret)
 378                 return ret;
 379
 380         nv_plane->cur = nv_fb->nvbo;
 381
 382         nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 383         nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 384         nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 385
 386         for (i = 0; i < 2; i++) {
 387                 nvif_wr32(dev, NV_PVIDEO_BUFF0_START_ADDRESS + 4 * i,
 388                         nv_fb->nvbo->bo.offset);
 389                 nvif_wr32(dev, NV_PVIDEO_BUFF0_PITCH_LENGTH + 4 * i, pitch);
 390                 nvif_wr32(dev, NV_PVIDEO_BUFF0_OFFSET + 4 * i, 0);
 391         }
 392         nvif_wr32(dev, NV_PVIDEO_WINDOW_START, crtc_y << 16 | crtc_x);
 393         nvif_wr32(dev, NV_PVIDEO_WINDOW_SIZE, crtc_h << 16 | crtc_w);
 394         nvif_wr32(dev, NV_PVIDEO_STEP_SIZE,
 395                 (uint32_t)(((src_h - 1) << 11) / (crtc_h - 1)) << 16 | (uint32_t)(((src_w - 1) << 11) / (crtc_w - 1)));
 396
 397         /* It should be possible to convert hue/contrast to this */
 398         nvif_wr32(dev, NV_PVIDEO_RED_CSC_OFFSET, 0x69 - brightness);
 399         nvif_wr32(dev, NV_PVIDEO_GREEN_CSC_OFFSET, 0x3e + brightness);
 400         nvif_wr32(dev, NV_PVIDEO_BLUE_CSC_OFFSET, 0x89 - brightness);
 401         nvif_wr32(dev, NV_PVIDEO_CSC_ADJUST, 0);
 402
 403         nvif_wr32(dev, NV_PVIDEO_CONTROL_Y, 0x001); /* (BLUR_ON, LINE_HALF) */
 404         nvif_wr32(dev, NV_PVIDEO_CONTROL_X, 0x111); /* (WEIGHT_HEAVY, SHARPENING_ON, SMOOTHING_ON) */
 405
 406         nvif_wr32(dev, NV_PVIDEO_FIFO_BURST_LENGTH, 0x03);
 407         nvif_wr32(dev, NV_PVIDEO_FIFO_THRES_SIZE, 0x38);
 408
 409         nvif_wr32(dev, NV_PVIDEO_KEY, nv_plane->colorkey);
 410
 411         if (nv_plane->colorkey & (1 << 24))
 412                 overlay |= 0x10;
 413         if (fb->pixel_format == DRM_FORMAT_YUYV)
 414                 overlay |= 0x100;
 415
 416         nvif_wr32(dev, NV_PVIDEO_OVERLAY, overlay);
 417
 418         nvif_wr32(dev, NV_PVIDEO_SU_STATE, nvif_rd32(dev, NV_PVIDEO_SU_STATE) ^ (1 << 16));
 419
 420         if (cur)
 421                 nouveau_bo_unpin(cur);
 422
 423         return 0;
 424 }
 425
 426 static int
 427 nv04_disable_plane(struct drm_plane *plane)
 428 {
 429         struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
 430         struct nouveau_plane *nv_plane =
 431                 container_of(plane, struct nouveau_plane, base);
 432
 433         nvif_mask(dev, NV_PVIDEO_OVERLAY, 1, 0);
 434         nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 435         nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 436         nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 437         if (nv_plane->cur) {
 438                 nouveau_bo_unpin(nv_plane->cur);
 439                 nv_plane->cur = NULL;
 440         }
 441
 442         return 0;
 443 }
 444
 445 static const struct drm_plane_funcs nv04_plane_funcs = {
 446         .update_plane = nv04_update_plane,
 447         .disable_plane = nv04_disable_plane,
 448         .set_property = nv_set_property,
 449         .destroy = nv_destroy_plane,
 450 };
 451
 452 static void
 453 nv04_overlay_init(struct drm_device *device)
 454 {
 455         struct nouveau_drm *drm = nouveau_drm(device);
 456         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 457         int ret;
 458
 459         if (!plane)
 460                 return;
 461
 462         ret = drm_plane_init(device, &plane->base, 1 /* single crtc */,
 463                              &nv04_plane_funcs,
 464                              formats, 2, false);
 465         if (ret)
 466                 goto err;
 467
 468         /* Set up the plane properties */
 469         plane->props.colorkey = drm_property_create_range(
 470                         device, 0, "colorkey", 0, 0x01ffffff);
 471         plane->props.brightness = drm_property_create_range(
 472                         device, 0, "brightness", 0, 1024);
 473         if (!plane->props.colorkey ||
 474             !plane->props.brightness)
 475                 goto cleanup;
 476
 477         plane->colorkey = 0;
 478         drm_object_attach_property(&plane->base.base,
 479                                    plane->props.colorkey, plane->colorkey);
 480
 481         plane->brightness = 512;
 482         drm_object_attach_property(&plane->base.base,
 483                                    plane->props.brightness, plane->brightness);
 484
 485         nv04_disable_plane(&plane->base);
 486         return;
 487 cleanup:
 488         drm_plane_cleanup(&plane->base);
 489 err:
 490         kfree(plane);
 491         NV_ERROR(drm, "Failed to create plane\n");
 492 }
 493
 494 void
 495 nouveau_overlay_init(struct drm_device *device)
 496 {
 497         struct nvif_device *dev = &nouveau_drm(device)->device;
 498         if (dev->info.chipset < 0x10)
 499                 nv04_overlay_init(device);
 500         else if (dev->info.chipset <= 0x40)
 501                 nv10_overlay_init(device);
 502 }