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/drm_crtc.h>
  27 #include <drm/drm_fourcc.h>
  28
  29 #include "nouveau_drv.h"
  30
  31 #include "nouveau_bo.h"
  32 #include "nouveau_connector.h"
  33 #include "nouveau_display.h"
  34 #include "nouveau_gem.h"
  35 #include "nvreg.h"
  36 #include "disp.h"
  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         } props;
  50
  51         int colorkey;
  52         int contrast;
  53         int brightness;
  54         int hue;
  55         int saturation;
  56         enum drm_color_encoding color_encoding;
  57
  58         void (*set_params)(struct nouveau_plane *);
  59 };
  60
  61 static uint32_t formats[] = {
  62         DRM_FORMAT_YUYV,
  63         DRM_FORMAT_UYVY,
  64         DRM_FORMAT_NV12,
  65         DRM_FORMAT_NV21,
  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 verify_scaling(const struct drm_framebuffer *fb, uint8_t shift,
  94                uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
  95                uint32_t crtc_w, uint32_t crtc_h)
  96 {
  97         if (crtc_w < (src_w >> shift) || crtc_h < (src_h >> shift)) {
  98                 DRM_DEBUG_KMS("Unsuitable framebuffer scaling: %dx%d -> %dx%d\n",
  99                               src_w, src_h, crtc_w, crtc_h);
 100                 return -ERANGE;
 101         }
 102
 103         if (src_x != 0 || src_y != 0) {
 104                 DRM_DEBUG_KMS("Unsuitable framebuffer offset: %d,%d\n",
 105                               src_x, src_y);
 106                 return -ERANGE;
 107         }
 108
 109         return 0;
 110 }
 111
 112 static int
 113 nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 114                   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 115                   unsigned int crtc_w, unsigned int crtc_h,
 116                   uint32_t src_x, uint32_t src_y,
 117                   uint32_t src_w, uint32_t src_h,
 118                   struct drm_modeset_acquire_ctx *ctx)
 119 {
 120         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 121         struct nvif_object *dev = &drm->client.device.object;
 122         struct nouveau_plane *nv_plane =
 123                 container_of(plane, struct nouveau_plane, base);
 124         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 125         struct nouveau_bo *cur = nv_plane->cur;
 126         struct nouveau_bo *nvbo;
 127         bool flip = nv_plane->flip;
 128         int soff = NV_PCRTC0_SIZE * nv_crtc->index;
 129         int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
 130         unsigned shift = drm->client.device.info.chipset >= 0x30 ? 1 : 3;
 131         unsigned format = 0;
 132         int ret;
 133
 134         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 135         src_x >>= 16;
 136         src_y >>= 16;
 137         src_w >>= 16;
 138         src_h >>= 16;
 139
 140         ret = verify_scaling(fb, shift, 0, 0, src_w, src_h, crtc_w, crtc_h);
 141         if (ret)
 142                 return ret;
 143
 144         nvbo = nouveau_gem_object(fb->obj[0]);
 145         ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, false);
 146         if (ret)
 147                 return ret;
 148
 149         nv_plane->cur = nvbo;
 150
 151         nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY);
 152         nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
 153
 154         nvif_wr32(dev, NV_PVIDEO_BASE(flip), 0);
 155         nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nvbo->offset);
 156         nvif_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
 157         nvif_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
 158         nvif_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
 159         nvif_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h);
 160         nvif_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x);
 161         nvif_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w);
 162
 163         if (fb->format->format == DRM_FORMAT_YUYV ||
 164             fb->format->format == DRM_FORMAT_NV12)
 165                 format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8;
 166         if (fb->format->format == DRM_FORMAT_NV12 ||
 167             fb->format->format == DRM_FORMAT_NV21)
 168                 format |= NV_PVIDEO_FORMAT_PLANAR;
 169         if (nv_plane->color_encoding == DRM_COLOR_YCBCR_BT709)
 170                 format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 171         if (nv_plane->colorkey & (1 << 24))
 172                 format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 173
 174         if (format & NV_PVIDEO_FORMAT_PLANAR) {
 175                 nvif_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
 176                 nvif_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
 177                         nvbo->offset + fb->offsets[1]);
 178         }
 179         nvif_wr32(dev, NV_PVIDEO_FORMAT(flip), format | fb->pitches[0]);
 180         nvif_wr32(dev, NV_PVIDEO_STOP, 0);
 181         /* TODO: wait for vblank? */
 182         nvif_wr32(dev, NV_PVIDEO_BUFFER, flip ? 0x10 : 0x1);
 183         nv_plane->flip = !flip;
 184
 185         if (cur)
 186                 nouveau_bo_unpin(cur);
 187
 188         return 0;
 189 }
 190
 191 static int
 192 nv10_disable_plane(struct drm_plane *plane,
 193                    struct drm_modeset_acquire_ctx *ctx)
 194 {
 195         struct nvif_object *dev = &nouveau_drm(plane->dev)->client.device.object;
 196         struct nouveau_plane *nv_plane =
 197                 container_of(plane, struct nouveau_plane, base);
 198
 199         nvif_wr32(dev, NV_PVIDEO_STOP, 1);
 200         if (nv_plane->cur) {
 201                 nouveau_bo_unpin(nv_plane->cur);
 202                 nv_plane->cur = NULL;
 203         }
 204
 205         return 0;
 206 }
 207
 208 static void
 209 nv_destroy_plane(struct drm_plane *plane)
 210 {
 211         drm_plane_force_disable(plane);
 212         drm_plane_cleanup(plane);
 213         kfree(plane);
 214 }
 215
 216 static void
 217 nv10_set_params(struct nouveau_plane *plane)
 218 {
 219         struct nvif_object *dev = &nouveau_drm(plane->base.dev)->client.device.object;
 220         u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
 221         u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
 222                 (cos_mul(plane->hue, plane->saturation) & 0xffff);
 223         u32 format = 0;
 224
 225         nvif_wr32(dev, NV_PVIDEO_LUMINANCE(0), luma);
 226         nvif_wr32(dev, NV_PVIDEO_LUMINANCE(1), luma);
 227         nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(0), chroma);
 228         nvif_wr32(dev, NV_PVIDEO_CHROMINANCE(1), chroma);
 229         nvif_wr32(dev, NV_PVIDEO_COLOR_KEY, plane->colorkey & 0xffffff);
 230
 231         if (plane->cur) {
 232                 if (plane->color_encoding == DRM_COLOR_YCBCR_BT709)
 233                         format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 234                 if (plane->colorkey & (1 << 24))
 235                         format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 236                 nvif_mask(dev, NV_PVIDEO_FORMAT(plane->flip),
 237                         NV_PVIDEO_FORMAT_MATRIX_ITURBT709 |
 238                         NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY,
 239                         format);
 240         }
 241 }
 242
 243 static int
 244 nv_set_property(struct drm_plane *plane,
 245                 struct drm_property *property,
 246                 uint64_t value)
 247 {
 248         struct nouveau_plane *nv_plane =
 249                 container_of(plane, struct nouveau_plane, base);
 250
 251         if (property == nv_plane->props.colorkey)
 252                 nv_plane->colorkey = value;
 253         else if (property == nv_plane->props.contrast)
 254                 nv_plane->contrast = value;
 255         else if (property == nv_plane->props.brightness)
 256                 nv_plane->brightness = value;
 257         else if (property == nv_plane->props.hue)
 258                 nv_plane->hue = value;
 259         else if (property == nv_plane->props.saturation)
 260                 nv_plane->saturation = value;
 261         else if (property == nv_plane->base.color_encoding_property)
 262                 nv_plane->color_encoding = value;
 263         else
 264                 return -EINVAL;
 265
 266         if (nv_plane->set_params)
 267                 nv_plane->set_params(nv_plane);
 268         return 0;
 269 }
 270
 271 static const struct drm_plane_funcs nv10_plane_funcs = {
 272         .update_plane = nv10_update_plane,
 273         .disable_plane = nv10_disable_plane,
 274         .set_property = nv_set_property,
 275         .destroy = nv_destroy_plane,
 276 };
 277
 278 static void
 279 nv10_overlay_init(struct drm_device *device)
 280 {
 281         struct nouveau_drm *drm = nouveau_drm(device);
 282         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 283         unsigned int num_formats = ARRAY_SIZE(formats);
 284         int ret;
 285
 286         if (!plane)
 287                 return;
 288
 289         switch (drm->client.device.info.chipset) {
 290         case 0x10:
 291         case 0x11:
 292         case 0x15:
 293         case 0x1a:
 294         case 0x20:
 295                 num_formats = 2;
 296                 break;
 297         }
 298
 299         ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */,
 300                              &nv10_plane_funcs,
 301                              formats, num_formats, false);
 302         if (ret)
 303                 goto err;
 304
 305         /* Set up the plane properties */
 306         plane->props.colorkey = drm_property_create_range(
 307                         device, 0, "colorkey", 0, 0x01ffffff);
 308         plane->props.contrast = drm_property_create_range(
 309                         device, 0, "contrast", 0, 8192 - 1);
 310         plane->props.brightness = drm_property_create_range(
 311                         device, 0, "brightness", 0, 1024);
 312         plane->props.hue = drm_property_create_range(
 313                         device, 0, "hue", 0, 359);
 314         plane->props.saturation = drm_property_create_range(
 315                         device, 0, "saturation", 0, 8192 - 1);
 316         if (!plane->props.colorkey ||
 317             !plane->props.contrast ||
 318             !plane->props.brightness ||
 319             !plane->props.hue ||
 320             !plane->props.saturation)
 321                 goto cleanup;
 322
 323         plane->colorkey = 0;
 324         drm_object_attach_property(&plane->base.base,
 325                                    plane->props.colorkey, plane->colorkey);
 326
 327         plane->contrast = 0x1000;
 328         drm_object_attach_property(&plane->base.base,
 329                                    plane->props.contrast, plane->contrast);
 330
 331         plane->brightness = 512;
 332         drm_object_attach_property(&plane->base.base,
 333                                    plane->props.brightness, plane->brightness);
 334
 335         plane->hue = 0;
 336         drm_object_attach_property(&plane->base.base,
 337                                    plane->props.hue, plane->hue);
 338
 339         plane->saturation = 0x1000;
 340         drm_object_attach_property(&plane->base.base,
 341                                    plane->props.saturation, plane->saturation);
 342
 343         plane->color_encoding = DRM_COLOR_YCBCR_BT601;
 344         drm_plane_create_color_properties(&plane->base,
 345                                           BIT(DRM_COLOR_YCBCR_BT601) |
 346                                           BIT(DRM_COLOR_YCBCR_BT709),
 347                                           BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
 348                                           DRM_COLOR_YCBCR_BT601,
 349                                           DRM_COLOR_YCBCR_LIMITED_RANGE);
 350
 351         plane->set_params = nv10_set_params;
 352         nv10_set_params(plane);
 353         drm_plane_force_disable(&plane->base);
 354         return;
 355 cleanup:
 356         drm_plane_cleanup(&plane->base);
 357 err:
 358         kfree(plane);
 359         NV_ERROR(drm, "Failed to create plane\n");
 360 }
 361
 362 static int
 363 nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 364                   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 365                   unsigned int crtc_w, unsigned int crtc_h,
 366                   uint32_t src_x, uint32_t src_y,
 367                   uint32_t src_w, uint32_t src_h,
 368                   struct drm_modeset_acquire_ctx *ctx)
 369 {
 370         struct nvif_object *dev = &nouveau_drm(plane->dev)->client.device.object;
 371         struct nouveau_plane *nv_plane =
 372                 container_of(plane, struct nouveau_plane, base);
 373         struct nouveau_bo *cur = nv_plane->cur;
 374         struct nouveau_bo *nvbo;
 375         uint32_t overlay = 1;
 376         int brightness = (nv_plane->brightness - 512) * 62 / 512;
 377         int ret, i;
 378
 379         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 380         src_x >>= 16;
 381         src_y >>= 16;
 382         src_w >>= 16;
 383         src_h >>= 16;
 384
 385         ret = verify_scaling(fb, 0, src_x, src_y, src_w, src_h, crtc_w, crtc_h);
 386         if (ret)
 387                 return ret;
 388
 389         nvbo = nouveau_gem_object(fb->obj[0]);
 390         ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, false);
 391         if (ret)
 392                 return ret;
 393
 394         nv_plane->cur = nvbo;
 395
 396         nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 397         nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 398         nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 399
 400         for (i = 0; i < 2; i++) {
 401                 nvif_wr32(dev, NV_PVIDEO_BUFF0_START_ADDRESS + 4 * i,
 402                           nvbo->offset);
 403                 nvif_wr32(dev, NV_PVIDEO_BUFF0_PITCH_LENGTH + 4 * i,
 404                           fb->pitches[0]);
 405                 nvif_wr32(dev, NV_PVIDEO_BUFF0_OFFSET + 4 * i, 0);
 406         }
 407         nvif_wr32(dev, NV_PVIDEO_WINDOW_START, crtc_y << 16 | crtc_x);
 408         nvif_wr32(dev, NV_PVIDEO_WINDOW_SIZE, crtc_h << 16 | crtc_w);
 409         nvif_wr32(dev, NV_PVIDEO_STEP_SIZE,
 410                 (uint32_t)(((src_h - 1) << 11) / (crtc_h - 1)) << 16 | (uint32_t)(((src_w - 1) << 11) / (crtc_w - 1)));
 411
 412         /* It should be possible to convert hue/contrast to this */
 413         nvif_wr32(dev, NV_PVIDEO_RED_CSC_OFFSET, 0x69 - brightness);
 414         nvif_wr32(dev, NV_PVIDEO_GREEN_CSC_OFFSET, 0x3e + brightness);
 415         nvif_wr32(dev, NV_PVIDEO_BLUE_CSC_OFFSET, 0x89 - brightness);
 416         nvif_wr32(dev, NV_PVIDEO_CSC_ADJUST, 0);
 417
 418         nvif_wr32(dev, NV_PVIDEO_CONTROL_Y, 0x001); /* (BLUR_ON, LINE_HALF) */
 419         nvif_wr32(dev, NV_PVIDEO_CONTROL_X, 0x111); /* (WEIGHT_HEAVY, SHARPENING_ON, SMOOTHING_ON) */
 420
 421         nvif_wr32(dev, NV_PVIDEO_FIFO_BURST_LENGTH, 0x03);
 422         nvif_wr32(dev, NV_PVIDEO_FIFO_THRES_SIZE, 0x38);
 423
 424         nvif_wr32(dev, NV_PVIDEO_KEY, nv_plane->colorkey);
 425
 426         if (nv_plane->colorkey & (1 << 24))
 427                 overlay |= 0x10;
 428         if (fb->format->format == DRM_FORMAT_YUYV)
 429                 overlay |= 0x100;
 430
 431         nvif_wr32(dev, NV_PVIDEO_OVERLAY, overlay);
 432
 433         nvif_wr32(dev, NV_PVIDEO_SU_STATE, nvif_rd32(dev, NV_PVIDEO_SU_STATE) ^ (1 << 16));
 434
 435         if (cur)
 436                 nouveau_bo_unpin(cur);
 437
 438         return 0;
 439 }
 440
 441 static int
 442 nv04_disable_plane(struct drm_plane *plane,
 443                    struct drm_modeset_acquire_ctx *ctx)
 444 {
 445         struct nvif_object *dev = &nouveau_drm(plane->dev)->client.device.object;
 446         struct nouveau_plane *nv_plane =
 447                 container_of(plane, struct nouveau_plane, base);
 448
 449         nvif_mask(dev, NV_PVIDEO_OVERLAY, 1, 0);
 450         nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 451         nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 452         nvif_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 453         if (nv_plane->cur) {
 454                 nouveau_bo_unpin(nv_plane->cur);
 455                 nv_plane->cur = NULL;
 456         }
 457
 458         return 0;
 459 }
 460
 461 static const struct drm_plane_funcs nv04_plane_funcs = {
 462         .update_plane = nv04_update_plane,
 463         .disable_plane = nv04_disable_plane,
 464         .set_property = nv_set_property,
 465         .destroy = nv_destroy_plane,
 466 };
 467
 468 static void
 469 nv04_overlay_init(struct drm_device *device)
 470 {
 471         struct nouveau_drm *drm = nouveau_drm(device);
 472         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 473         int ret;
 474
 475         if (!plane)
 476                 return;
 477
 478         ret = drm_plane_init(device, &plane->base, 1 /* single crtc */,
 479                              &nv04_plane_funcs,
 480                              formats, 2, false);
 481         if (ret)
 482                 goto err;
 483
 484         /* Set up the plane properties */
 485         plane->props.colorkey = drm_property_create_range(
 486                         device, 0, "colorkey", 0, 0x01ffffff);
 487         plane->props.brightness = drm_property_create_range(
 488                         device, 0, "brightness", 0, 1024);
 489         if (!plane->props.colorkey ||
 490             !plane->props.brightness)
 491                 goto cleanup;
 492
 493         plane->colorkey = 0;
 494         drm_object_attach_property(&plane->base.base,
 495                                    plane->props.colorkey, plane->colorkey);
 496
 497         plane->brightness = 512;
 498         drm_object_attach_property(&plane->base.base,
 499                                    plane->props.brightness, plane->brightness);
 500
 501         drm_plane_force_disable(&plane->base);
 502         return;
 503 cleanup:
 504         drm_plane_cleanup(&plane->base);
 505 err:
 506         kfree(plane);
 507         NV_ERROR(drm, "Failed to create plane\n");
 508 }
 509
 510 void
 511 nouveau_overlay_init(struct drm_device *device)
 512 {
 513         struct nvif_device *dev = &nouveau_drm(device)->client.device;
 514         if (dev->info.chipset < 0x10)
 515                 nv04_overlay_init(device);
 516         else if (dev->info.chipset <= 0x40)
 517                 nv10_overlay_init(device);
 518 }