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 nouveau_device *dev = nouveau_dev(plane->dev);
 100         struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane;
 101         struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 102         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 103         struct nouveau_bo *cur = nv_plane->cur;
 104         bool flip = nv_plane->flip;
 105         int soff = NV_PCRTC0_SIZE * nv_crtc->index;
 106         int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
 107         int format, ret;
 108
 109         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 110         src_x >>= 16;
 111         src_y >>= 16;
 112         src_w >>= 16;
 113         src_h >>= 16;
 114
 115         format = ALIGN(src_w * 4, 0x100);
 116
 117         if (format > 0xffff)
 118                 return -ERANGE;
 119
 120         if (dev->chipset >= 0x30) {
 121                 if (crtc_w < (src_w >> 1) || crtc_h < (src_h >> 1))
 122                         return -ERANGE;
 123         } else {
 124                 if (crtc_w < (src_w >> 3) || crtc_h < (src_h >> 3))
 125                         return -ERANGE;
 126         }
 127
 128         ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM);
 129         if (ret)
 130                 return ret;
 131
 132         nv_plane->cur = nv_fb->nvbo;
 133
 134         nv_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY);
 135         nv_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
 136
 137         nv_wr32(dev, NV_PVIDEO_BASE(flip), 0);
 138         nv_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset);
 139         nv_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
 140         nv_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
 141         nv_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
 142         nv_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h);
 143         nv_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x);
 144         nv_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w);
 145
 146         if (fb->pixel_format != DRM_FORMAT_UYVY)
 147                 format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8;
 148         if (fb->pixel_format == DRM_FORMAT_NV12)
 149                 format |= NV_PVIDEO_FORMAT_PLANAR;
 150         if (nv_plane->iturbt_709)
 151                 format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 152         if (nv_plane->colorkey & (1 << 24))
 153                 format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 154
 155         if (fb->pixel_format == DRM_FORMAT_NV12) {
 156                 nv_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
 157                 nv_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
 158                         nv_fb->nvbo->bo.offset + fb->offsets[1]);
 159         }
 160         nv_wr32(dev, NV_PVIDEO_FORMAT(flip), format);
 161         nv_wr32(dev, NV_PVIDEO_STOP, 0);
 162         /* TODO: wait for vblank? */
 163         nv_wr32(dev, NV_PVIDEO_BUFFER, flip ? 0x10 : 0x1);
 164         nv_plane->flip = !flip;
 165
 166         if (cur)
 167                 nouveau_bo_unpin(cur);
 168
 169         return 0;
 170 }
 171
 172 static int
 173 nv10_disable_plane(struct drm_plane *plane)
 174 {
 175         struct nouveau_device *dev = nouveau_dev(plane->dev);
 176         struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane;
 177
 178         nv_wr32(dev, NV_PVIDEO_STOP, 1);
 179         if (nv_plane->cur) {
 180                 nouveau_bo_unpin(nv_plane->cur);
 181                 nv_plane->cur = NULL;
 182         }
 183
 184         return 0;
 185 }
 186
 187 static void
 188 nv_destroy_plane(struct drm_plane *plane)
 189 {
 190         plane->funcs->disable_plane(plane);
 191         drm_plane_cleanup(plane);
 192         kfree(plane);
 193 }
 194
 195 static void
 196 nv10_set_params(struct nouveau_plane *plane)
 197 {
 198         struct nouveau_device *dev = nouveau_dev(plane->base.dev);
 199         u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
 200         u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
 201                 (cos_mul(plane->hue, plane->saturation) & 0xffff);
 202         u32 format = 0;
 203
 204         nv_wr32(dev, NV_PVIDEO_LUMINANCE(0), luma);
 205         nv_wr32(dev, NV_PVIDEO_LUMINANCE(1), luma);
 206         nv_wr32(dev, NV_PVIDEO_CHROMINANCE(0), chroma);
 207         nv_wr32(dev, NV_PVIDEO_CHROMINANCE(1), chroma);
 208         nv_wr32(dev, NV_PVIDEO_COLOR_KEY, plane->colorkey & 0xffffff);
 209
 210         if (plane->cur) {
 211                 if (plane->iturbt_709)
 212                         format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
 213                 if (plane->colorkey & (1 << 24))
 214                         format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
 215                 nv_mask(dev, NV_PVIDEO_FORMAT(plane->flip),
 216                         NV_PVIDEO_FORMAT_MATRIX_ITURBT709 |
 217                         NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY,
 218                         format);
 219         }
 220 }
 221
 222 static int
 223 nv_set_property(struct drm_plane *plane,
 224                 struct drm_property *property,
 225                 uint64_t value)
 226 {
 227         struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane;
 228
 229         if (property == nv_plane->props.colorkey)
 230                 nv_plane->colorkey = value;
 231         else if (property == nv_plane->props.contrast)
 232                 nv_plane->contrast = value;
 233         else if (property == nv_plane->props.brightness)
 234                 nv_plane->brightness = value;
 235         else if (property == nv_plane->props.hue)
 236                 nv_plane->hue = value;
 237         else if (property == nv_plane->props.saturation)
 238                 nv_plane->saturation = value;
 239         else if (property == nv_plane->props.iturbt_709)
 240                 nv_plane->iturbt_709 = value;
 241         else
 242                 return -EINVAL;
 243
 244         if (nv_plane->set_params)
 245                 nv_plane->set_params(nv_plane);
 246         return 0;
 247 }
 248
 249 static const struct drm_plane_funcs nv10_plane_funcs = {
 250         .update_plane = nv10_update_plane,
 251         .disable_plane = nv10_disable_plane,
 252         .set_property = nv_set_property,
 253         .destroy = nv_destroy_plane,
 254 };
 255
 256 static void
 257 nv10_overlay_init(struct drm_device *device)
 258 {
 259         struct nouveau_drm *drm = nouveau_drm(device);
 260         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 261         int num_formats = ARRAY_SIZE(formats);
 262         int ret;
 263
 264         if (!plane)
 265                 return;
 266
 267         switch (nv_device(drm->device)->chipset) {
 268         case 0x10:
 269         case 0x11:
 270         case 0x15:
 271         case 0x1a:
 272         case 0x20:
 273                 num_formats = 2;
 274                 break;
 275         }
 276
 277         ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */,
 278                              &nv10_plane_funcs,
 279                              formats, num_formats, false);
 280         if (ret)
 281                 goto err;
 282
 283         /* Set up the plane properties */
 284         plane->props.colorkey = drm_property_create_range(
 285                         device, 0, "colorkey", 0, 0x01ffffff);
 286         plane->props.contrast = drm_property_create_range(
 287                         device, 0, "contrast", 0, 8192 - 1);
 288         plane->props.brightness = drm_property_create_range(
 289                         device, 0, "brightness", 0, 1024);
 290         plane->props.hue = drm_property_create_range(
 291                         device, 0, "hue", 0, 359);
 292         plane->props.saturation = drm_property_create_range(
 293                         device, 0, "saturation", 0, 8192 - 1);
 294         plane->props.iturbt_709 = drm_property_create_range(
 295                         device, 0, "iturbt_709", 0, 1);
 296         if (!plane->props.colorkey ||
 297             !plane->props.contrast ||
 298             !plane->props.brightness ||
 299             !plane->props.hue ||
 300             !plane->props.saturation ||
 301             !plane->props.iturbt_709)
 302                 goto cleanup;
 303
 304         plane->colorkey = 0;
 305         drm_object_attach_property(&plane->base.base,
 306                                    plane->props.colorkey, plane->colorkey);
 307
 308         plane->contrast = 0x1000;
 309         drm_object_attach_property(&plane->base.base,
 310                                    plane->props.contrast, plane->contrast);
 311
 312         plane->brightness = 512;
 313         drm_object_attach_property(&plane->base.base,
 314                                    plane->props.brightness, plane->brightness);
 315
 316         plane->hue = 0;
 317         drm_object_attach_property(&plane->base.base,
 318                                    plane->props.hue, plane->hue);
 319
 320         plane->saturation = 0x1000;
 321         drm_object_attach_property(&plane->base.base,
 322                                    plane->props.saturation, plane->saturation);
 323
 324         plane->iturbt_709 = 0;
 325         drm_object_attach_property(&plane->base.base,
 326                                    plane->props.iturbt_709, plane->iturbt_709);
 327
 328         plane->set_params = nv10_set_params;
 329         nv10_set_params(plane);
 330         nv10_disable_plane(&plane->base);
 331         return;
 332 cleanup:
 333         drm_plane_cleanup(&plane->base);
 334 err:
 335         kfree(plane);
 336         NV_ERROR(drm, "Failed to create plane\n");
 337 }
 338
 339 static int
 340 nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 341                   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 342                   unsigned int crtc_w, unsigned int crtc_h,
 343                   uint32_t src_x, uint32_t src_y,
 344                   uint32_t src_w, uint32_t src_h)
 345 {
 346         struct nouveau_device *dev = nouveau_dev(plane->dev);
 347         struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane;
 348         struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 349         struct nouveau_bo *cur = nv_plane->cur;
 350         uint32_t overlay = 1;
 351         int brightness = (nv_plane->brightness - 512) * 62 / 512;
 352         int pitch, ret, i;
 353
 354         /* Source parameters given in 16.16 fixed point, ignore fractional. */
 355         src_x >>= 16;
 356         src_y >>= 16;
 357         src_w >>= 16;
 358         src_h >>= 16;
 359
 360         pitch = ALIGN(src_w * 4, 0x100);
 361
 362         if (pitch > 0xffff)
 363                 return -ERANGE;
 364
 365         /* TODO: Compute an offset? Not sure how to do this for YUYV. */
 366         if (src_x != 0 || src_y != 0)
 367                 return -ERANGE;
 368
 369         if (crtc_w < src_w || crtc_h < src_h)
 370                 return -ERANGE;
 371
 372         ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM);
 373         if (ret)
 374                 return ret;
 375
 376         nv_plane->cur = nv_fb->nvbo;
 377
 378         nv_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 379         nv_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 380         nv_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 381
 382         for (i = 0; i < 2; i++) {
 383                 nv_wr32(dev, NV_PVIDEO_BUFF0_START_ADDRESS + 4 * i,
 384                         nv_fb->nvbo->bo.offset);
 385                 nv_wr32(dev, NV_PVIDEO_BUFF0_PITCH_LENGTH + 4 * i, pitch);
 386                 nv_wr32(dev, NV_PVIDEO_BUFF0_OFFSET + 4 * i, 0);
 387         }
 388         nv_wr32(dev, NV_PVIDEO_WINDOW_START, crtc_y << 16 | crtc_x);
 389         nv_wr32(dev, NV_PVIDEO_WINDOW_SIZE, crtc_h << 16 | crtc_w);
 390         nv_wr32(dev, NV_PVIDEO_STEP_SIZE,
 391                 (uint32_t)(((src_h - 1) << 11) / (crtc_h - 1)) << 16 | (uint32_t)(((src_w - 1) << 11) / (crtc_w - 1)));
 392
 393         /* It should be possible to convert hue/contrast to this */
 394         nv_wr32(dev, NV_PVIDEO_RED_CSC_OFFSET, 0x69 - brightness);
 395         nv_wr32(dev, NV_PVIDEO_GREEN_CSC_OFFSET, 0x3e + brightness);
 396         nv_wr32(dev, NV_PVIDEO_BLUE_CSC_OFFSET, 0x89 - brightness);
 397         nv_wr32(dev, NV_PVIDEO_CSC_ADJUST, 0);
 398
 399         nv_wr32(dev, NV_PVIDEO_CONTROL_Y, 0x001); /* (BLUR_ON, LINE_HALF) */
 400         nv_wr32(dev, NV_PVIDEO_CONTROL_X, 0x111); /* (WEIGHT_HEAVY, SHARPENING_ON, SMOOTHING_ON) */
 401
 402         nv_wr32(dev, NV_PVIDEO_FIFO_BURST_LENGTH, 0x03);
 403         nv_wr32(dev, NV_PVIDEO_FIFO_THRES_SIZE, 0x38);
 404
 405         nv_wr32(dev, NV_PVIDEO_KEY, nv_plane->colorkey);
 406
 407         if (nv_plane->colorkey & (1 << 24))
 408                 overlay |= 0x10;
 409         if (fb->pixel_format == DRM_FORMAT_YUYV)
 410                 overlay |= 0x100;
 411
 412         nv_wr32(dev, NV_PVIDEO_OVERLAY, overlay);
 413
 414         nv_wr32(dev, NV_PVIDEO_SU_STATE, nv_rd32(dev, NV_PVIDEO_SU_STATE) ^ (1 << 16));
 415
 416         if (cur)
 417                 nouveau_bo_unpin(cur);
 418
 419         return 0;
 420 }
 421
 422 static int
 423 nv04_disable_plane(struct drm_plane *plane)
 424 {
 425         struct nouveau_device *dev = nouveau_dev(plane->dev);
 426         struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane;
 427
 428         nv_mask(dev, NV_PVIDEO_OVERLAY, 1, 0);
 429         nv_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 430         nv_wr32(dev, NV_PVIDEO_SU_STATE, 0);
 431         nv_wr32(dev, NV_PVIDEO_RM_STATE, 0);
 432         if (nv_plane->cur) {
 433                 nouveau_bo_unpin(nv_plane->cur);
 434                 nv_plane->cur = NULL;
 435         }
 436
 437         return 0;
 438 }
 439
 440 static const struct drm_plane_funcs nv04_plane_funcs = {
 441         .update_plane = nv04_update_plane,
 442         .disable_plane = nv04_disable_plane,
 443         .set_property = nv_set_property,
 444         .destroy = nv_destroy_plane,
 445 };
 446
 447 static void
 448 nv04_overlay_init(struct drm_device *device)
 449 {
 450         struct nouveau_drm *drm = nouveau_drm(device);
 451         struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL);
 452         int ret;
 453
 454         if (!plane)
 455                 return;
 456
 457         ret = drm_plane_init(device, &plane->base, 1 /* single crtc */,
 458                              &nv04_plane_funcs,
 459                              formats, 2, false);
 460         if (ret)
 461                 goto err;
 462
 463         /* Set up the plane properties */
 464         plane->props.colorkey = drm_property_create_range(
 465                         device, 0, "colorkey", 0, 0x01ffffff);
 466         plane->props.brightness = drm_property_create_range(
 467                         device, 0, "brightness", 0, 1024);
 468         if (!plane->props.colorkey ||
 469             !plane->props.brightness)
 470                 goto cleanup;
 471
 472         plane->colorkey = 0;
 473         drm_object_attach_property(&plane->base.base,
 474                                    plane->props.colorkey, plane->colorkey);
 475
 476         plane->brightness = 512;
 477         drm_object_attach_property(&plane->base.base,
 478                                    plane->props.brightness, plane->brightness);
 479
 480         nv04_disable_plane(&plane->base);
 481         return;
 482 cleanup:
 483         drm_plane_cleanup(&plane->base);
 484 err:
 485         kfree(plane);
 486         NV_ERROR(drm, "Failed to create plane\n");
 487 }
 488
 489 void
 490 nouveau_overlay_init(struct drm_device *device)
 491 {
 492         struct nouveau_device *dev = nouveau_dev(device);
 493         if (dev->chipset < 0x10)
 494                 nv04_overlay_init(device);
 495         else if (dev->chipset <= 0x40)
 496                 nv10_overlay_init(device);
 497 }