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