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 "armada_crtc.h"
  11 #include "armada_drm.h"
  12 #include "armada_fb.h"
  13 #include "armada_gem.h"
  14 #include "armada_hw.h"
  15 #include <drm/armada_drm.h>
  16 #include "armada_ioctlP.h"
  17
  18 struct armada_plane_properties {
  19         uint32_t colorkey_yr;
  20         uint32_t colorkey_ug;
  21         uint32_t colorkey_vb;
  22 #define K2R(val) (((val) >> 0) & 0xff)
  23 #define K2G(val) (((val) >> 8) & 0xff)
  24 #define K2B(val) (((val) >> 16) & 0xff)
  25         int16_t  brightness;
  26         uint16_t contrast;
  27         uint16_t saturation;
  28         uint32_t colorkey_mode;
  29 };
  30
  31 struct armada_plane {
  32         struct drm_plane base;
  33         spinlock_t lock;
  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_vbl_event update;
  41                 struct armada_regs regs[13];
  42                 wait_queue_head_t wait;
  43         } vbl;
  44         struct armada_plane_properties prop;
  45 };
  46 #define drm_to_armada_plane(p) container_of(p, struct armada_plane, base)
  47
  48
  49 static void
  50 armada_ovl_update_attr(struct armada_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 /* === Plane support === */
  74 static void armada_plane_vbl(struct armada_crtc *dcrtc, void *data)
  75 {
  76         struct armada_plane *dplane = data;
  77         struct drm_framebuffer *fb;
  78
  79         armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
  80
  81         spin_lock(&dplane->lock);
  82         fb = dplane->old_fb;
  83         dplane->old_fb = NULL;
  84         spin_unlock(&dplane->lock);
  85
  86         if (fb)
  87                 armada_drm_queue_unref_work(dcrtc->crtc.dev, fb);
  88 }
  89
  90 static unsigned armada_limit(int start, unsigned size, unsigned max)
  91 {
  92         int end = start + size;
  93         if (end < 0)
  94                 return 0;
  95         if (start < 0)
  96                 start = 0;
  97         return (unsigned)end > max ? max - start : end - start;
  98 }
  99
 100 static int
 101 armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
 102         struct drm_framebuffer *fb,
 103         int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
 104         uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
 105 {
 106         struct armada_plane *dplane = drm_to_armada_plane(plane);
 107         struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 108         uint32_t val, ctrl0;
 109         unsigned idx = 0;
 110         int ret;
 111
 112         crtc_w = armada_limit(crtc_x, crtc_w, dcrtc->crtc.mode.hdisplay);
 113         crtc_h = armada_limit(crtc_y, crtc_h, dcrtc->crtc.mode.vdisplay);
 114         ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
 115                 CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
 116                 CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;
 117
 118         /* Does the position/size result in nothing to display? */
 119         if (crtc_w == 0 || crtc_h == 0) {
 120                 ctrl0 &= ~CFG_DMA_ENA;
 121         }
 122
 123         /*
 124          * FIXME: if the starting point is off screen, we need to
 125          * adjust src_x, src_y, src_w, src_h appropriately, and
 126          * according to the scale.
 127          */
 128
 129         if (!dcrtc->plane) {
 130                 dcrtc->plane = plane;
 131                 armada_ovl_update_attr(&dplane->prop, dcrtc);
 132         }
 133
 134         /* FIXME: overlay on an interlaced display */
 135         /* Just updating the position/size? */
 136         if (plane->fb == fb && dplane->ctrl0 == ctrl0) {
 137                 val = (src_h & 0xffff0000) | src_w >> 16;
 138                 dplane->src_hw = val;
 139                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);
 140                 val = crtc_h << 16 | crtc_w;
 141                 dplane->dst_hw = val;
 142                 writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
 143                 val = crtc_y << 16 | crtc_x;
 144                 dplane->dst_yx = val;
 145                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
 146                 return 0;
 147         } else if (~dplane->ctrl0 & ctrl0 & CFG_DMA_ENA) {
 148                 /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
 149                 armada_updatel(0, CFG_PDWN16x66 | CFG_PDWN32x66,
 150                                dcrtc->base + LCD_SPU_SRAM_PARA1);
 151         }
 152
 153         ret = wait_event_timeout(dplane->vbl.wait,
 154                                  list_empty(&dplane->vbl.update.node),
 155                                  HZ/25);
 156         if (ret < 0)
 157                 return ret;
 158
 159         if (plane->fb != fb) {
 160                 struct armada_gem_object *obj = drm_fb_obj(fb);
 161                 uint32_t sy, su, sv;
 162
 163                 /*
 164                  * Take a reference on the new framebuffer - we want to
 165                  * hold on to it while the hardware is displaying it.
 166                  */
 167                 drm_framebuffer_reference(fb);
 168
 169                 if (plane->fb) {
 170                         struct drm_framebuffer *older_fb;
 171
 172                         spin_lock_irq(&dplane->lock);
 173                         older_fb = dplane->old_fb;
 174                         dplane->old_fb = plane->fb;
 175                         spin_unlock_irq(&dplane->lock);
 176                         if (older_fb)
 177                                 armada_drm_queue_unref_work(dcrtc->crtc.dev,
 178                                                             older_fb);
 179                 }
 180
 181                 src_y >>= 16;
 182                 src_x >>= 16;
 183                 sy = obj->dev_addr + fb->offsets[0] + src_y * fb->pitches[0] +
 184                         src_x * fb->bits_per_pixel / 8;
 185                 su = obj->dev_addr + fb->offsets[1] + src_y * fb->pitches[1] +
 186                         src_x;
 187                 sv = obj->dev_addr + fb->offsets[2] + src_y * fb->pitches[2] +
 188                         src_x;
 189
 190                 armada_reg_queue_set(dplane->vbl.regs, idx, sy,
 191                                      LCD_SPU_DMA_START_ADDR_Y0);
 192                 armada_reg_queue_set(dplane->vbl.regs, idx, su,
 193                                      LCD_SPU_DMA_START_ADDR_U0);
 194                 armada_reg_queue_set(dplane->vbl.regs, idx, sv,
 195                                      LCD_SPU_DMA_START_ADDR_V0);
 196                 armada_reg_queue_set(dplane->vbl.regs, idx, sy,
 197                                      LCD_SPU_DMA_START_ADDR_Y1);
 198                 armada_reg_queue_set(dplane->vbl.regs, idx, su,
 199                                      LCD_SPU_DMA_START_ADDR_U1);
 200                 armada_reg_queue_set(dplane->vbl.regs, idx, sv,
 201                                      LCD_SPU_DMA_START_ADDR_V1);
 202
 203                 val = fb->pitches[0] << 16 | fb->pitches[0];
 204                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 205                                      LCD_SPU_DMA_PITCH_YC);
 206                 val = fb->pitches[1] << 16 | fb->pitches[2];
 207                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 208                                      LCD_SPU_DMA_PITCH_UV);
 209         }
 210
 211         val = (src_h & 0xffff0000) | src_w >> 16;
 212         if (dplane->src_hw != val) {
 213                 dplane->src_hw = val;
 214                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 215                                      LCD_SPU_DMA_HPXL_VLN);
 216         }
 217         val = crtc_h << 16 | crtc_w;
 218         if (dplane->dst_hw != val) {
 219                 dplane->dst_hw = val;
 220                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 221                                      LCD_SPU_DZM_HPXL_VLN);
 222         }
 223         val = crtc_y << 16 | crtc_x;
 224         if (dplane->dst_yx != val) {
 225                 dplane->dst_yx = val;
 226                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 227                                      LCD_SPU_DMA_OVSA_HPXL_VLN);
 228         }
 229         if (dplane->ctrl0 != ctrl0) {
 230                 dplane->ctrl0 = ctrl0;
 231                 armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
 232                         CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
 233                         CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
 234                         CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
 235                         CFG_YUV2RGB) | CFG_DMA_ENA,
 236                         LCD_SPU_DMA_CTRL0);
 237         }
 238         if (idx) {
 239                 armada_reg_queue_end(dplane->vbl.regs, idx);
 240                 armada_drm_vbl_event_add(dcrtc, &dplane->vbl.update);
 241         }
 242         return 0;
 243 }
 244
 245 static int armada_plane_disable(struct drm_plane *plane)
 246 {
 247         struct armada_plane *dplane = drm_to_armada_plane(plane);
 248         struct drm_framebuffer *fb;
 249         struct armada_crtc *dcrtc;
 250
 251         if (!dplane->base.crtc)
 252                 return 0;
 253
 254         dcrtc = drm_to_armada_crtc(dplane->base.crtc);
 255         dcrtc->plane = NULL;
 256
 257         spin_lock_irq(&dcrtc->irq_lock);
 258         armada_drm_vbl_event_remove(dcrtc, &dplane->vbl.update);
 259         armada_updatel(0, CFG_DMA_ENA, dcrtc->base + LCD_SPU_DMA_CTRL0);
 260         dplane->ctrl0 = 0;
 261         spin_unlock_irq(&dcrtc->irq_lock);
 262
 263         /* Power down the Y/U/V FIFOs */
 264         armada_updatel(CFG_PDWN16x66 | CFG_PDWN32x66, 0,
 265                        dcrtc->base + LCD_SPU_SRAM_PARA1);
 266
 267         if (plane->fb)
 268                 drm_framebuffer_unreference(plane->fb);
 269
 270         spin_lock_irq(&dplane->lock);
 271         fb = dplane->old_fb;
 272         dplane->old_fb = NULL;
 273         spin_unlock_irq(&dplane->lock);
 274         if (fb)
 275                 drm_framebuffer_unreference(fb);
 276
 277         return 0;
 278 }
 279
 280 static void armada_plane_destroy(struct drm_plane *plane)
 281 {
 282         kfree(plane);
 283 }
 284
 285 static int armada_plane_set_property(struct drm_plane *plane,
 286         struct drm_property *property, uint64_t val)
 287 {
 288         struct armada_private *priv = plane->dev->dev_private;
 289         struct armada_plane *dplane = drm_to_armada_plane(plane);
 290         bool update_attr = false;
 291
 292         if (property == priv->colorkey_prop) {
 293 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 294                 dplane->prop.colorkey_yr = CCC(K2R(val));
 295                 dplane->prop.colorkey_ug = CCC(K2G(val));
 296                 dplane->prop.colorkey_vb = CCC(K2B(val));
 297 #undef CCC
 298                 update_attr = true;
 299         } else if (property == priv->colorkey_min_prop) {
 300                 dplane->prop.colorkey_yr &= ~0x00ff0000;
 301                 dplane->prop.colorkey_yr |= K2R(val) << 16;
 302                 dplane->prop.colorkey_ug &= ~0x00ff0000;
 303                 dplane->prop.colorkey_ug |= K2G(val) << 16;
 304                 dplane->prop.colorkey_vb &= ~0x00ff0000;
 305                 dplane->prop.colorkey_vb |= K2B(val) << 16;
 306                 update_attr = true;
 307         } else if (property == priv->colorkey_max_prop) {
 308                 dplane->prop.colorkey_yr &= ~0xff000000;
 309                 dplane->prop.colorkey_yr |= K2R(val) << 24;
 310                 dplane->prop.colorkey_ug &= ~0xff000000;
 311                 dplane->prop.colorkey_ug |= K2G(val) << 24;
 312                 dplane->prop.colorkey_vb &= ~0xff000000;
 313                 dplane->prop.colorkey_vb |= K2B(val) << 24;
 314                 update_attr = true;
 315         } else if (property == priv->colorkey_val_prop) {
 316                 dplane->prop.colorkey_yr &= ~0x0000ff00;
 317                 dplane->prop.colorkey_yr |= K2R(val) << 8;
 318                 dplane->prop.colorkey_ug &= ~0x0000ff00;
 319                 dplane->prop.colorkey_ug |= K2G(val) << 8;
 320                 dplane->prop.colorkey_vb &= ~0x0000ff00;
 321                 dplane->prop.colorkey_vb |= K2B(val) << 8;
 322                 update_attr = true;
 323         } else if (property == priv->colorkey_alpha_prop) {
 324                 dplane->prop.colorkey_yr &= ~0x000000ff;
 325                 dplane->prop.colorkey_yr |= K2R(val);
 326                 dplane->prop.colorkey_ug &= ~0x000000ff;
 327                 dplane->prop.colorkey_ug |= K2G(val);
 328                 dplane->prop.colorkey_vb &= ~0x000000ff;
 329                 dplane->prop.colorkey_vb |= K2B(val);
 330                 update_attr = true;
 331         } else if (property == priv->colorkey_mode_prop) {
 332                 dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
 333                 dplane->prop.colorkey_mode |= CFG_CKMODE(val);
 334                 update_attr = true;
 335         } else if (property == priv->brightness_prop) {
 336                 dplane->prop.brightness = val - 256;
 337                 update_attr = true;
 338         } else if (property == priv->contrast_prop) {
 339                 dplane->prop.contrast = val;
 340                 update_attr = true;
 341         } else if (property == priv->saturation_prop) {
 342                 dplane->prop.saturation = val;
 343                 update_attr = true;
 344         }
 345
 346         if (update_attr && dplane->base.crtc)
 347                 armada_ovl_update_attr(&dplane->prop,
 348                                        drm_to_armada_crtc(dplane->base.crtc));
 349
 350         return 0;
 351 }
 352
 353 static const struct drm_plane_funcs armada_plane_funcs = {
 354         .update_plane   = armada_plane_update,
 355         .disable_plane  = armada_plane_disable,
 356         .destroy        = armada_plane_destroy,
 357         .set_property   = armada_plane_set_property,
 358 };
 359
 360 static const uint32_t armada_formats[] = {
 361         DRM_FORMAT_UYVY,
 362         DRM_FORMAT_YUYV,
 363         DRM_FORMAT_YUV420,
 364         DRM_FORMAT_YVU420,
 365         DRM_FORMAT_YUV422,
 366         DRM_FORMAT_YVU422,
 367         DRM_FORMAT_VYUY,
 368         DRM_FORMAT_YVYU,
 369         DRM_FORMAT_ARGB8888,
 370         DRM_FORMAT_ABGR8888,
 371         DRM_FORMAT_XRGB8888,
 372         DRM_FORMAT_XBGR8888,
 373         DRM_FORMAT_RGB888,
 374         DRM_FORMAT_BGR888,
 375         DRM_FORMAT_ARGB1555,
 376         DRM_FORMAT_ABGR1555,
 377         DRM_FORMAT_RGB565,
 378         DRM_FORMAT_BGR565,
 379 };
 380
 381 static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 382         { CKMODE_DISABLE, "disabled" },
 383         { CKMODE_Y,       "Y component" },
 384         { CKMODE_U,       "U component" },
 385         { CKMODE_V,       "V component" },
 386         { CKMODE_RGB,     "RGB" },
 387         { CKMODE_R,       "R component" },
 388         { CKMODE_G,       "G component" },
 389         { CKMODE_B,       "B component" },
 390 };
 391
 392 static int armada_overlay_create_properties(struct drm_device *dev)
 393 {
 394         struct armada_private *priv = dev->dev_private;
 395
 396         if (priv->colorkey_prop)
 397                 return 0;
 398
 399         priv->colorkey_prop = drm_property_create_range(dev, 0,
 400                                 "colorkey", 0, 0xffffff);
 401         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 402                                 "colorkey_min", 0, 0xffffff);
 403         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 404                                 "colorkey_max", 0, 0xffffff);
 405         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 406                                 "colorkey_val", 0, 0xffffff);
 407         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 408                                 "colorkey_alpha", 0, 0xffffff);
 409         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 410                                 "colorkey_mode",
 411                                 armada_drm_colorkey_enum_list,
 412                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 413         priv->brightness_prop = drm_property_create_range(dev, 0,
 414                                 "brightness", 0, 256 + 255);
 415         priv->contrast_prop = drm_property_create_range(dev, 0,
 416                                 "contrast", 0, 0x7fff);
 417         priv->saturation_prop = drm_property_create_range(dev, 0,
 418                                 "saturation", 0, 0x7fff);
 419
 420         if (!priv->colorkey_prop)
 421                 return -ENOMEM;
 422
 423         return 0;
 424 }
 425
 426 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 427 {
 428         struct armada_private *priv = dev->dev_private;
 429         struct drm_mode_object *mobj;
 430         struct armada_plane *dplane;
 431         int ret;
 432
 433         ret = armada_overlay_create_properties(dev);
 434         if (ret)
 435                 return ret;
 436
 437         dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
 438         if (!dplane)
 439                 return -ENOMEM;
 440
 441         spin_lock_init(&dplane->lock);
 442         init_waitqueue_head(&dplane->vbl.wait);
 443         armada_drm_vbl_event_init(&dplane->vbl.update, armada_plane_vbl,
 444                                   dplane);
 445
 446         drm_plane_init(dev, &dplane->base, crtcs, &armada_plane_funcs,
 447                        armada_formats, ARRAY_SIZE(armada_formats), false);
 448
 449         dplane->prop.colorkey_yr = 0xfefefe00;
 450         dplane->prop.colorkey_ug = 0x01010100;
 451         dplane->prop.colorkey_vb = 0x01010100;
 452         dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB);
 453         dplane->prop.brightness = 0;
 454         dplane->prop.contrast = 0x4000;
 455         dplane->prop.saturation = 0x4000;
 456
 457         mobj = &dplane->base.base;
 458         drm_object_attach_property(mobj, priv->colorkey_prop,
 459                                    0x0101fe);
 460         drm_object_attach_property(mobj, priv->colorkey_min_prop,
 461                                    0x0101fe);
 462         drm_object_attach_property(mobj, priv->colorkey_max_prop,
 463                                    0x0101fe);
 464         drm_object_attach_property(mobj, priv->colorkey_val_prop,
 465                                    0x0101fe);
 466         drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
 467                                    0x000000);
 468         drm_object_attach_property(mobj, priv->colorkey_mode_prop,
 469                                    CKMODE_RGB);
 470         drm_object_attach_property(mobj, priv->brightness_prop, 256);
 471         drm_object_attach_property(mobj, priv->contrast_prop,
 472                                    dplane->prop.contrast);
 473         drm_object_attach_property(mobj, priv->saturation_prop,
 474                                    dplane->prop.saturation);
 475
 476         return 0;
 477 }