drivers/gpu/drm/armada/armada_overlay.c

   1 /*
   2  * Copyright (C) 2012 Russell King
   3  *  Rewritten from the dovefb driver, and Armada510 manuals.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9 #include <drm/drmP.h>
  10 #include <drm/drm_plane_helper.h>
  11 #include "armada_crtc.h"
  12 #include "armada_drm.h"
  13 #include "armada_fb.h"
  14 #include "armada_gem.h"
  15 #include "armada_hw.h"
  16 #include <drm/armada_drm.h>
  17 #include "armada_ioctlP.h"
  18
  19 struct armada_ovl_plane_properties {
  20         uint32_t colorkey_yr;
  21         uint32_t colorkey_ug;
  22         uint32_t colorkey_vb;
  23 #define K2R(val) (((val) >> 0) & 0xff)
  24 #define K2G(val) (((val) >> 8) & 0xff)
  25 #define K2B(val) (((val) >> 16) & 0xff)
  26         int16_t  brightness;
  27         uint16_t contrast;
  28         uint16_t saturation;
  29         uint32_t colorkey_mode;
  30 };
  31
  32 struct armada_ovl_plane {
  33         struct armada_plane base;
  34         struct drm_framebuffer *old_fb;
  35         uint32_t src_hw;
  36         uint32_t dst_hw;
  37         uint32_t dst_yx;
  38         uint32_t ctrl0;
  39         struct {
  40                 struct armada_plane_work work;
  41                 struct armada_regs regs[13];
  42         } vbl;
  43         struct armada_ovl_plane_properties prop;
  44 };
  45 #define drm_to_armada_ovl_plane(p) \
  46         container_of(p, struct armada_ovl_plane, base.base)
  47
  48
  49 static void
  50 armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
  51         struct armada_crtc *dcrtc)
  52 {
  53         writel_relaxed(prop->colorkey_yr, dcrtc->base + LCD_SPU_COLORKEY_Y);
  54         writel_relaxed(prop->colorkey_ug, dcrtc->base + LCD_SPU_COLORKEY_U);
  55         writel_relaxed(prop->colorkey_vb, dcrtc->base + LCD_SPU_COLORKEY_V);
  56
  57         writel_relaxed(prop->brightness << 16 | prop->contrast,
  58                        dcrtc->base + LCD_SPU_CONTRAST);
  59         /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
  60         writel_relaxed(prop->saturation << 16,
  61                        dcrtc->base + LCD_SPU_SATURATION);
  62         writel_relaxed(0x00002000, dcrtc->base + LCD_SPU_CBSH_HUE);
  63
  64         spin_lock_irq(&dcrtc->irq_lock);
  65         armada_updatel(prop->colorkey_mode | CFG_ALPHAM_GRA,
  66                      CFG_CKMODE_MASK | CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
  67                      dcrtc->base + LCD_SPU_DMA_CTRL1);
  68
  69         armada_updatel(ADV_GRACOLORKEY, 0, dcrtc->base + LCD_SPU_ADV_REG);
  70         spin_unlock_irq(&dcrtc->irq_lock);
  71 }
  72
  73 static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
  74         struct drm_framebuffer *fb)
  75 {
  76         struct drm_framebuffer *old_fb;
  77
  78         old_fb = xchg(&dplane->old_fb, fb);
  79
  80         if (old_fb)
  81                 armada_drm_queue_unref_work(dplane->base.base.dev, old_fb);
  82 }
  83
  84 /* === Plane support === */
  85 static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
  86         struct armada_plane *plane, struct armada_plane_work *work)
  87 {
  88         struct armada_ovl_plane *dplane = container_of(plane, struct armada_ovl_plane, base);
  89
  90         armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
  91         armada_ovl_retire_fb(dplane, NULL);
  92 }
  93
  94 static int
  95 armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
  96         struct drm_framebuffer *fb,
  97         int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
  98         uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
  99 {
 100         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 101         struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 102         struct drm_rect src = {
 103                 .x1 = src_x,
 104                 .y1 = src_y,
 105                 .x2 = src_x + src_w,
 106                 .y2 = src_y + src_h,
 107         };
 108         struct drm_rect dest = {
 109                 .x1 = crtc_x,
 110                 .y1 = crtc_y,
 111                 .x2 = crtc_x + crtc_w,
 112                 .y2 = crtc_y + crtc_h,
 113         };
 114         const struct drm_rect clip = {
 115                 .x2 = crtc->mode.hdisplay,
 116                 .y2 = crtc->mode.vdisplay,
 117         };
 118         uint32_t val, ctrl0;
 119         unsigned idx = 0;
 120         bool visible;
 121         int ret;
 122
 123         ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
 124                                             BIT(DRM_ROTATE_0),
 125                                             0, INT_MAX, true, false, &visible);
 126         if (ret)
 127                 return ret;
 128
 129         ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
 130                 CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
 131                 CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;
 132
 133         /* Does the position/size result in nothing to display? */
 134         if (!visible)
 135                 ctrl0 &= ~CFG_DMA_ENA;
 136
 137         if (!dcrtc->plane) {
 138                 dcrtc->plane = plane;
 139                 armada_ovl_update_attr(&dplane->prop, dcrtc);
 140         }
 141
 142         /* FIXME: overlay on an interlaced display */
 143         /* Just updating the position/size? */
 144         if (plane->fb == fb && dplane->ctrl0 == ctrl0) {
 145                 val = (drm_rect_height(&src) & 0xffff0000) |
 146                       drm_rect_width(&src) >> 16;
 147                 dplane->src_hw = val;
 148                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);
 149
 150                 val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 151                 dplane->dst_hw = val;
 152                 writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
 153
 154                 val = dest.y1 << 16 | dest.x1;
 155                 dplane->dst_yx = val;
 156                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
 157
 158                 return 0;
 159         } else if (~dplane->ctrl0 & ctrl0 & CFG_DMA_ENA) {
 160                 /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
 161                 armada_updatel(0, CFG_PDWN16x66 | CFG_PDWN32x66,
 162                                dcrtc->base + LCD_SPU_SRAM_PARA1);
 163         }
 164
 165         if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
 166                 armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 167
 168         if (plane->fb != fb) {
 169                 struct armada_gem_object *obj = drm_fb_obj(fb);
 170                 uint32_t addr[3], pixel_format;
 171                 int i, num_planes, hsub;
 172
 173                 /*
 174                  * Take a reference on the new framebuffer - we want to
 175                  * hold on to it while the hardware is displaying it.
 176                  */
 177                 drm_framebuffer_reference(fb);
 178
 179                 if (plane->fb)
 180                         armada_ovl_retire_fb(dplane, plane->fb);
 181
 182                 src_y = src.y1 >> 16;
 183                 src_x = src.x1 >> 16;
 184
 185                 pixel_format = fb->pixel_format;
 186                 hsub = drm_format_horz_chroma_subsampling(pixel_format);
 187                 num_planes = drm_format_num_planes(pixel_format);
 188
 189                 /*
 190                  * Annoyingly, shifting a YUYV-format image by one pixel
 191                  * causes the U/V planes to toggle.  Toggle the UV swap.
 192                  * (Unfortunately, this causes momentary colour flickering.)
 193                  */
 194                 if (src_x & (hsub - 1) && num_planes == 1)
 195                         ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
 196
 197                 for (i = 0; i < num_planes; i++)
 198                         addr[i] = obj->dev_addr + fb->offsets[i] +
 199                                   src_y * fb->pitches[i] +
 200                                   src_x * drm_format_plane_cpp(pixel_format, i);
 201                 for (; i < ARRAY_SIZE(addr); i++)
 202                         addr[i] = 0;
 203
 204                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
 205                                      LCD_SPU_DMA_START_ADDR_Y0);
 206                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
 207                                      LCD_SPU_DMA_START_ADDR_U0);
 208                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
 209                                      LCD_SPU_DMA_START_ADDR_V0);
 210                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
 211                                      LCD_SPU_DMA_START_ADDR_Y1);
 212                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
 213                                      LCD_SPU_DMA_START_ADDR_U1);
 214                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
 215                                      LCD_SPU_DMA_START_ADDR_V1);
 216
 217                 val = fb->pitches[0] << 16 | fb->pitches[0];
 218                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 219                                      LCD_SPU_DMA_PITCH_YC);
 220                 val = fb->pitches[1] << 16 | fb->pitches[2];
 221                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 222                                      LCD_SPU_DMA_PITCH_UV);
 223         }
 224
 225         val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
 226         if (dplane->src_hw != val) {
 227                 dplane->src_hw = val;
 228                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 229                                      LCD_SPU_DMA_HPXL_VLN);
 230         }
 231
 232         val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 233         if (dplane->dst_hw != val) {
 234                 dplane->dst_hw = val;
 235                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 236                                      LCD_SPU_DZM_HPXL_VLN);
 237         }
 238
 239         val = dest.y1 << 16 | dest.x1;
 240         if (dplane->dst_yx != val) {
 241                 dplane->dst_yx = val;
 242                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 243                                      LCD_SPU_DMA_OVSA_HPXL_VLN);
 244         }
 245
 246         if (dplane->ctrl0 != ctrl0) {
 247                 dplane->ctrl0 = ctrl0;
 248                 armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
 249                         CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
 250                         CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
 251                         CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
 252                         CFG_YUV2RGB) | CFG_DMA_ENA,
 253                         LCD_SPU_DMA_CTRL0);
 254         }
 255         if (idx) {
 256                 armada_reg_queue_end(dplane->vbl.regs, idx);
 257                 armada_drm_plane_work_queue(dcrtc, &dplane->base,
 258                                             &dplane->vbl.work);
 259         }
 260         return 0;
 261 }
 262
 263 static int armada_ovl_plane_disable(struct drm_plane *plane)
 264 {
 265         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 266         struct drm_framebuffer *fb;
 267         struct armada_crtc *dcrtc;
 268
 269         if (!dplane->base.base.crtc)
 270                 return 0;
 271
 272         dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);
 273
 274         armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 275         armada_drm_crtc_plane_disable(dcrtc, plane);
 276
 277         dcrtc->plane = NULL;
 278         dplane->ctrl0 = 0;
 279
 280         fb = xchg(&dplane->old_fb, NULL);
 281         if (fb)
 282                 drm_framebuffer_unreference(fb);
 283
 284         return 0;
 285 }
 286
 287 static void armada_ovl_plane_destroy(struct drm_plane *plane)
 288 {
 289         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 290
 291         drm_plane_cleanup(plane);
 292
 293         kfree(dplane);
 294 }
 295
 296 static int armada_ovl_plane_set_property(struct drm_plane *plane,
 297         struct drm_property *property, uint64_t val)
 298 {
 299         struct armada_private *priv = plane->dev->dev_private;
 300         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 301         bool update_attr = false;
 302
 303         if (property == priv->colorkey_prop) {
 304 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 305                 dplane->prop.colorkey_yr = CCC(K2R(val));
 306                 dplane->prop.colorkey_ug = CCC(K2G(val));
 307                 dplane->prop.colorkey_vb = CCC(K2B(val));
 308 #undef CCC
 309                 update_attr = true;
 310         } else if (property == priv->colorkey_min_prop) {
 311                 dplane->prop.colorkey_yr &= ~0x00ff0000;
 312                 dplane->prop.colorkey_yr |= K2R(val) << 16;
 313                 dplane->prop.colorkey_ug &= ~0x00ff0000;
 314                 dplane->prop.colorkey_ug |= K2G(val) << 16;
 315                 dplane->prop.colorkey_vb &= ~0x00ff0000;
 316                 dplane->prop.colorkey_vb |= K2B(val) << 16;
 317                 update_attr = true;
 318         } else if (property == priv->colorkey_max_prop) {
 319                 dplane->prop.colorkey_yr &= ~0xff000000;
 320                 dplane->prop.colorkey_yr |= K2R(val) << 24;
 321                 dplane->prop.colorkey_ug &= ~0xff000000;
 322                 dplane->prop.colorkey_ug |= K2G(val) << 24;
 323                 dplane->prop.colorkey_vb &= ~0xff000000;
 324                 dplane->prop.colorkey_vb |= K2B(val) << 24;
 325                 update_attr = true;
 326         } else if (property == priv->colorkey_val_prop) {
 327                 dplane->prop.colorkey_yr &= ~0x0000ff00;
 328                 dplane->prop.colorkey_yr |= K2R(val) << 8;
 329                 dplane->prop.colorkey_ug &= ~0x0000ff00;
 330                 dplane->prop.colorkey_ug |= K2G(val) << 8;
 331                 dplane->prop.colorkey_vb &= ~0x0000ff00;
 332                 dplane->prop.colorkey_vb |= K2B(val) << 8;
 333                 update_attr = true;
 334         } else if (property == priv->colorkey_alpha_prop) {
 335                 dplane->prop.colorkey_yr &= ~0x000000ff;
 336                 dplane->prop.colorkey_yr |= K2R(val);
 337                 dplane->prop.colorkey_ug &= ~0x000000ff;
 338                 dplane->prop.colorkey_ug |= K2G(val);
 339                 dplane->prop.colorkey_vb &= ~0x000000ff;
 340                 dplane->prop.colorkey_vb |= K2B(val);
 341                 update_attr = true;
 342         } else if (property == priv->colorkey_mode_prop) {
 343                 dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
 344                 dplane->prop.colorkey_mode |= CFG_CKMODE(val);
 345                 update_attr = true;
 346         } else if (property == priv->brightness_prop) {
 347                 dplane->prop.brightness = val - 256;
 348                 update_attr = true;
 349         } else if (property == priv->contrast_prop) {
 350                 dplane->prop.contrast = val;
 351                 update_attr = true;
 352         } else if (property == priv->saturation_prop) {
 353                 dplane->prop.saturation = val;
 354                 update_attr = true;
 355         }
 356
 357         if (update_attr && dplane->base.base.crtc)
 358                 armada_ovl_update_attr(&dplane->prop,
 359                                        drm_to_armada_crtc(dplane->base.base.crtc));
 360
 361         return 0;
 362 }
 363
 364 static const struct drm_plane_funcs armada_ovl_plane_funcs = {
 365         .update_plane   = armada_ovl_plane_update,
 366         .disable_plane  = armada_ovl_plane_disable,
 367         .destroy        = armada_ovl_plane_destroy,
 368         .set_property   = armada_ovl_plane_set_property,
 369 };
 370
 371 static const uint32_t armada_ovl_formats[] = {
 372         DRM_FORMAT_UYVY,
 373         DRM_FORMAT_YUYV,
 374         DRM_FORMAT_YUV420,
 375         DRM_FORMAT_YVU420,
 376         DRM_FORMAT_YUV422,
 377         DRM_FORMAT_YVU422,
 378         DRM_FORMAT_VYUY,
 379         DRM_FORMAT_YVYU,
 380         DRM_FORMAT_ARGB8888,
 381         DRM_FORMAT_ABGR8888,
 382         DRM_FORMAT_XRGB8888,
 383         DRM_FORMAT_XBGR8888,
 384         DRM_FORMAT_RGB888,
 385         DRM_FORMAT_BGR888,
 386         DRM_FORMAT_ARGB1555,
 387         DRM_FORMAT_ABGR1555,
 388         DRM_FORMAT_RGB565,
 389         DRM_FORMAT_BGR565,
 390 };
 391
 392 static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 393         { CKMODE_DISABLE, "disabled" },
 394         { CKMODE_Y,       "Y component" },
 395         { CKMODE_U,       "U component" },
 396         { CKMODE_V,       "V component" },
 397         { CKMODE_RGB,     "RGB" },
 398         { CKMODE_R,       "R component" },
 399         { CKMODE_G,       "G component" },
 400         { CKMODE_B,       "B component" },
 401 };
 402
 403 static int armada_overlay_create_properties(struct drm_device *dev)
 404 {
 405         struct armada_private *priv = dev->dev_private;
 406
 407         if (priv->colorkey_prop)
 408                 return 0;
 409
 410         priv->colorkey_prop = drm_property_create_range(dev, 0,
 411                                 "colorkey", 0, 0xffffff);
 412         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 413                                 "colorkey_min", 0, 0xffffff);
 414         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 415                                 "colorkey_max", 0, 0xffffff);
 416         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 417                                 "colorkey_val", 0, 0xffffff);
 418         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 419                                 "colorkey_alpha", 0, 0xffffff);
 420         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 421                                 "colorkey_mode",
 422                                 armada_drm_colorkey_enum_list,
 423                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 424         priv->brightness_prop = drm_property_create_range(dev, 0,
 425                                 "brightness", 0, 256 + 255);
 426         priv->contrast_prop = drm_property_create_range(dev, 0,
 427                                 "contrast", 0, 0x7fff);
 428         priv->saturation_prop = drm_property_create_range(dev, 0,
 429                                 "saturation", 0, 0x7fff);
 430
 431         if (!priv->colorkey_prop)
 432                 return -ENOMEM;
 433
 434         return 0;
 435 }
 436
 437 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 438 {
 439         struct armada_private *priv = dev->dev_private;
 440         struct drm_mode_object *mobj;
 441         struct armada_ovl_plane *dplane;
 442         int ret;
 443
 444         ret = armada_overlay_create_properties(dev);
 445         if (ret)
 446                 return ret;
 447
 448         dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
 449         if (!dplane)
 450                 return -ENOMEM;
 451
 452         ret = armada_drm_plane_init(&dplane->base);
 453         if (ret) {
 454                 kfree(dplane);
 455                 return ret;
 456         }
 457
 458         dplane->vbl.work.fn = armada_ovl_plane_work;
 459
 460         ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
 461                                        &armada_ovl_plane_funcs,
 462                                        armada_ovl_formats,
 463                                        ARRAY_SIZE(armada_ovl_formats),
 464                                        DRM_PLANE_TYPE_OVERLAY, NULL);
 465         if (ret) {
 466                 kfree(dplane);
 467                 return ret;
 468         }
 469
 470         dplane->prop.colorkey_yr = 0xfefefe00;
 471         dplane->prop.colorkey_ug = 0x01010100;
 472         dplane->prop.colorkey_vb = 0x01010100;
 473         dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB);
 474         dplane->prop.brightness = 0;
 475         dplane->prop.contrast = 0x4000;
 476         dplane->prop.saturation = 0x4000;
 477
 478         mobj = &dplane->base.base.base;
 479         drm_object_attach_property(mobj, priv->colorkey_prop,
 480                                    0x0101fe);
 481         drm_object_attach_property(mobj, priv->colorkey_min_prop,
 482                                    0x0101fe);
 483         drm_object_attach_property(mobj, priv->colorkey_max_prop,
 484                                    0x0101fe);
 485         drm_object_attach_property(mobj, priv->colorkey_val_prop,
 486                                    0x0101fe);
 487         drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
 488                                    0x000000);
 489         drm_object_attach_property(mobj, priv->colorkey_mode_prop,
 490                                    CKMODE_RGB);
 491         drm_object_attach_property(mobj, priv->brightness_prop, 256);
 492         drm_object_attach_property(mobj, priv->contrast_prop,
 493                                    dplane->prop.contrast);
 494         drm_object_attach_property(mobj, priv->saturation_prop,
 495                                    dplane->prop.saturation);
 496
 497         return 0;
 498 }