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         uint32_t colorkey_enable;
  31 };
  32
  33 struct armada_ovl_plane {
  34         struct armada_plane base;
  35         struct drm_framebuffer *old_fb;
  36         uint32_t src_hw;
  37         uint32_t dst_hw;
  38         uint32_t dst_yx;
  39         uint32_t ctrl0;
  40         struct {
  41                 struct armada_plane_work work;
  42                 struct armada_regs regs[13];
  43         } vbl;
  44         struct armada_ovl_plane_properties prop;
  45 };
  46 #define drm_to_armada_ovl_plane(p) \
  47         container_of(p, struct armada_ovl_plane, base.base)
  48
  49
  50 static void
  51 armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
  52         struct armada_crtc *dcrtc)
  53 {
  54         writel_relaxed(prop->colorkey_yr, dcrtc->base + LCD_SPU_COLORKEY_Y);
  55         writel_relaxed(prop->colorkey_ug, dcrtc->base + LCD_SPU_COLORKEY_U);
  56         writel_relaxed(prop->colorkey_vb, dcrtc->base + LCD_SPU_COLORKEY_V);
  57
  58         writel_relaxed(prop->brightness << 16 | prop->contrast,
  59                        dcrtc->base + LCD_SPU_CONTRAST);
  60         /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
  61         writel_relaxed(prop->saturation << 16,
  62                        dcrtc->base + LCD_SPU_SATURATION);
  63         writel_relaxed(0x00002000, dcrtc->base + LCD_SPU_CBSH_HUE);
  64
  65         spin_lock_irq(&dcrtc->irq_lock);
  66         armada_updatel(prop->colorkey_mode,
  67                        CFG_CKMODE_MASK | CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
  68                        dcrtc->base + LCD_SPU_DMA_CTRL1);
  69         if (dcrtc->variant->has_spu_adv_reg)
  70                 armada_updatel(prop->colorkey_enable,
  71                                ADV_GRACOLORKEY | ADV_VIDCOLORKEY,
  72                                dcrtc->base + LCD_SPU_ADV_REG);
  73         spin_unlock_irq(&dcrtc->irq_lock);
  74 }
  75
  76 static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
  77         struct drm_framebuffer *fb)
  78 {
  79         struct drm_framebuffer *old_fb;
  80
  81         old_fb = xchg(&dplane->old_fb, fb);
  82
  83         if (old_fb)
  84                 armada_drm_queue_unref_work(dplane->base.base.dev, old_fb);
  85 }
  86
  87 /* === Plane support === */
  88 static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
  89         struct armada_plane *plane, struct armada_plane_work *work)
  90 {
  91         struct armada_ovl_plane *dplane = container_of(plane, struct armada_ovl_plane, base);
  92
  93         armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
  94         armada_ovl_retire_fb(dplane, NULL);
  95 }
  96
  97 static int
  98 armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
  99         struct drm_framebuffer *fb,
 100         int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
 101         uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
 102 {
 103         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 104         struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 105         struct drm_rect src = {
 106                 .x1 = src_x,
 107                 .y1 = src_y,
 108                 .x2 = src_x + src_w,
 109                 .y2 = src_y + src_h,
 110         };
 111         struct drm_rect dest = {
 112                 .x1 = crtc_x,
 113                 .y1 = crtc_y,
 114                 .x2 = crtc_x + crtc_w,
 115                 .y2 = crtc_y + crtc_h,
 116         };
 117         const struct drm_rect clip = {
 118                 .x2 = crtc->mode.hdisplay,
 119                 .y2 = crtc->mode.vdisplay,
 120         };
 121         uint32_t val, ctrl0;
 122         unsigned idx = 0;
 123         bool visible;
 124         int ret;
 125
 126         ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
 127                                             DRM_ROTATE_0,
 128                                             0, INT_MAX, true, false, &visible);
 129         if (ret)
 130                 return ret;
 131
 132         ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
 133                 CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
 134                 CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;
 135
 136         /* Does the position/size result in nothing to display? */
 137         if (!visible)
 138                 ctrl0 &= ~CFG_DMA_ENA;
 139
 140         if (!dcrtc->plane) {
 141                 dcrtc->plane = plane;
 142                 armada_ovl_update_attr(&dplane->prop, dcrtc);
 143         }
 144
 145         /* FIXME: overlay on an interlaced display */
 146         /* Just updating the position/size? */
 147         if (plane->fb == fb && dplane->ctrl0 == ctrl0) {
 148                 val = (drm_rect_height(&src) & 0xffff0000) |
 149                       drm_rect_width(&src) >> 16;
 150                 dplane->src_hw = val;
 151                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);
 152
 153                 val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 154                 dplane->dst_hw = val;
 155                 writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
 156
 157                 val = dest.y1 << 16 | dest.x1;
 158                 dplane->dst_yx = val;
 159                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
 160
 161                 return 0;
 162         } else if (~dplane->ctrl0 & ctrl0 & CFG_DMA_ENA) {
 163                 /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
 164                 armada_updatel(0, CFG_PDWN16x66 | CFG_PDWN32x66,
 165                                dcrtc->base + LCD_SPU_SRAM_PARA1);
 166         }
 167
 168         if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
 169                 armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 170
 171         if (plane->fb != fb) {
 172                 struct armada_gem_object *obj = drm_fb_obj(fb);
 173                 uint32_t addr[3], pixel_format;
 174                 int i, num_planes, hsub;
 175
 176                 /*
 177                  * Take a reference on the new framebuffer - we want to
 178                  * hold on to it while the hardware is displaying it.
 179                  */
 180                 drm_framebuffer_reference(fb);
 181
 182                 if (plane->fb)
 183                         armada_ovl_retire_fb(dplane, plane->fb);
 184
 185                 src_y = src.y1 >> 16;
 186                 src_x = src.x1 >> 16;
 187
 188                 pixel_format = fb->pixel_format;
 189                 hsub = drm_format_horz_chroma_subsampling(pixel_format);
 190                 num_planes = drm_format_num_planes(pixel_format);
 191
 192                 /*
 193                  * Annoyingly, shifting a YUYV-format image by one pixel
 194                  * causes the U/V planes to toggle.  Toggle the UV swap.
 195                  * (Unfortunately, this causes momentary colour flickering.)
 196                  */
 197                 if (src_x & (hsub - 1) && num_planes == 1)
 198                         ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
 199
 200                 for (i = 0; i < num_planes; i++)
 201                         addr[i] = obj->dev_addr + fb->offsets[i] +
 202                                   src_y * fb->pitches[i] +
 203                                   src_x * drm_format_plane_cpp(pixel_format, i);
 204                 for (; i < ARRAY_SIZE(addr); i++)
 205                         addr[i] = 0;
 206
 207                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
 208                                      LCD_SPU_DMA_START_ADDR_Y0);
 209                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
 210                                      LCD_SPU_DMA_START_ADDR_U0);
 211                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
 212                                      LCD_SPU_DMA_START_ADDR_V0);
 213                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
 214                                      LCD_SPU_DMA_START_ADDR_Y1);
 215                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
 216                                      LCD_SPU_DMA_START_ADDR_U1);
 217                 armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
 218                                      LCD_SPU_DMA_START_ADDR_V1);
 219
 220                 val = fb->pitches[0] << 16 | fb->pitches[0];
 221                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 222                                      LCD_SPU_DMA_PITCH_YC);
 223                 val = fb->pitches[1] << 16 | fb->pitches[2];
 224                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 225                                      LCD_SPU_DMA_PITCH_UV);
 226         }
 227
 228         val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
 229         if (dplane->src_hw != val) {
 230                 dplane->src_hw = val;
 231                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 232                                      LCD_SPU_DMA_HPXL_VLN);
 233         }
 234
 235         val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 236         if (dplane->dst_hw != val) {
 237                 dplane->dst_hw = val;
 238                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 239                                      LCD_SPU_DZM_HPXL_VLN);
 240         }
 241
 242         val = dest.y1 << 16 | dest.x1;
 243         if (dplane->dst_yx != val) {
 244                 dplane->dst_yx = val;
 245                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 246                                      LCD_SPU_DMA_OVSA_HPXL_VLN);
 247         }
 248
 249         if (dplane->ctrl0 != ctrl0) {
 250                 dplane->ctrl0 = ctrl0;
 251                 armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
 252                         CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
 253                         CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
 254                         CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
 255                         CFG_YUV2RGB) | CFG_DMA_ENA,
 256                         LCD_SPU_DMA_CTRL0);
 257         }
 258         if (idx) {
 259                 armada_reg_queue_end(dplane->vbl.regs, idx);
 260                 armada_drm_plane_work_queue(dcrtc, &dplane->base,
 261                                             &dplane->vbl.work);
 262         }
 263         return 0;
 264 }
 265
 266 static int armada_ovl_plane_disable(struct drm_plane *plane)
 267 {
 268         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 269         struct drm_framebuffer *fb;
 270         struct armada_crtc *dcrtc;
 271
 272         if (!dplane->base.base.crtc)
 273                 return 0;
 274
 275         dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);
 276
 277         armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 278         armada_drm_crtc_plane_disable(dcrtc, plane);
 279
 280         dcrtc->plane = NULL;
 281         dplane->ctrl0 = 0;
 282
 283         fb = xchg(&dplane->old_fb, NULL);
 284         if (fb)
 285                 drm_framebuffer_unreference(fb);
 286
 287         return 0;
 288 }
 289
 290 static void armada_ovl_plane_destroy(struct drm_plane *plane)
 291 {
 292         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 293
 294         drm_plane_cleanup(plane);
 295
 296         kfree(dplane);
 297 }
 298
 299 static int armada_ovl_plane_set_property(struct drm_plane *plane,
 300         struct drm_property *property, uint64_t val)
 301 {
 302         struct armada_private *priv = plane->dev->dev_private;
 303         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 304         bool update_attr = false;
 305
 306         if (property == priv->colorkey_prop) {
 307 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 308                 dplane->prop.colorkey_yr = CCC(K2R(val));
 309                 dplane->prop.colorkey_ug = CCC(K2G(val));
 310                 dplane->prop.colorkey_vb = CCC(K2B(val));
 311 #undef CCC
 312                 update_attr = true;
 313         } else if (property == priv->colorkey_min_prop) {
 314                 dplane->prop.colorkey_yr &= ~0x00ff0000;
 315                 dplane->prop.colorkey_yr |= K2R(val) << 16;
 316                 dplane->prop.colorkey_ug &= ~0x00ff0000;
 317                 dplane->prop.colorkey_ug |= K2G(val) << 16;
 318                 dplane->prop.colorkey_vb &= ~0x00ff0000;
 319                 dplane->prop.colorkey_vb |= K2B(val) << 16;
 320                 update_attr = true;
 321         } else if (property == priv->colorkey_max_prop) {
 322                 dplane->prop.colorkey_yr &= ~0xff000000;
 323                 dplane->prop.colorkey_yr |= K2R(val) << 24;
 324                 dplane->prop.colorkey_ug &= ~0xff000000;
 325                 dplane->prop.colorkey_ug |= K2G(val) << 24;
 326                 dplane->prop.colorkey_vb &= ~0xff000000;
 327                 dplane->prop.colorkey_vb |= K2B(val) << 24;
 328                 update_attr = true;
 329         } else if (property == priv->colorkey_val_prop) {
 330                 dplane->prop.colorkey_yr &= ~0x0000ff00;
 331                 dplane->prop.colorkey_yr |= K2R(val) << 8;
 332                 dplane->prop.colorkey_ug &= ~0x0000ff00;
 333                 dplane->prop.colorkey_ug |= K2G(val) << 8;
 334                 dplane->prop.colorkey_vb &= ~0x0000ff00;
 335                 dplane->prop.colorkey_vb |= K2B(val) << 8;
 336                 update_attr = true;
 337         } else if (property == priv->colorkey_alpha_prop) {
 338                 dplane->prop.colorkey_yr &= ~0x000000ff;
 339                 dplane->prop.colorkey_yr |= K2R(val);
 340                 dplane->prop.colorkey_ug &= ~0x000000ff;
 341                 dplane->prop.colorkey_ug |= K2G(val);
 342                 dplane->prop.colorkey_vb &= ~0x000000ff;
 343                 dplane->prop.colorkey_vb |= K2B(val);
 344                 update_attr = true;
 345         } else if (property == priv->colorkey_mode_prop) {
 346                 if (val == CKMODE_DISABLE) {
 347                         dplane->prop.colorkey_mode =
 348                                 CFG_CKMODE(CKMODE_DISABLE) |
 349                                 CFG_ALPHAM_CFG | CFG_ALPHA(255);
 350                         dplane->prop.colorkey_enable = 0;
 351                 } else {
 352                         dplane->prop.colorkey_mode =
 353                                 CFG_CKMODE(val) |
 354                                 CFG_ALPHAM_GRA | CFG_ALPHA(0);
 355                         dplane->prop.colorkey_enable = ADV_GRACOLORKEY;
 356                 }
 357                 update_attr = true;
 358         } else if (property == priv->brightness_prop) {
 359                 dplane->prop.brightness = val - 256;
 360                 update_attr = true;
 361         } else if (property == priv->contrast_prop) {
 362                 dplane->prop.contrast = val;
 363                 update_attr = true;
 364         } else if (property == priv->saturation_prop) {
 365                 dplane->prop.saturation = val;
 366                 update_attr = true;
 367         }
 368
 369         if (update_attr && dplane->base.base.crtc)
 370                 armada_ovl_update_attr(&dplane->prop,
 371                                        drm_to_armada_crtc(dplane->base.base.crtc));
 372
 373         return 0;
 374 }
 375
 376 static const struct drm_plane_funcs armada_ovl_plane_funcs = {
 377         .update_plane   = armada_ovl_plane_update,
 378         .disable_plane  = armada_ovl_plane_disable,
 379         .destroy        = armada_ovl_plane_destroy,
 380         .set_property   = armada_ovl_plane_set_property,
 381 };
 382
 383 static const uint32_t armada_ovl_formats[] = {
 384         DRM_FORMAT_UYVY,
 385         DRM_FORMAT_YUYV,
 386         DRM_FORMAT_YUV420,
 387         DRM_FORMAT_YVU420,
 388         DRM_FORMAT_YUV422,
 389         DRM_FORMAT_YVU422,
 390         DRM_FORMAT_VYUY,
 391         DRM_FORMAT_YVYU,
 392         DRM_FORMAT_ARGB8888,
 393         DRM_FORMAT_ABGR8888,
 394         DRM_FORMAT_XRGB8888,
 395         DRM_FORMAT_XBGR8888,
 396         DRM_FORMAT_RGB888,
 397         DRM_FORMAT_BGR888,
 398         DRM_FORMAT_ARGB1555,
 399         DRM_FORMAT_ABGR1555,
 400         DRM_FORMAT_RGB565,
 401         DRM_FORMAT_BGR565,
 402 };
 403
 404 static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 405         { CKMODE_DISABLE, "disabled" },
 406         { CKMODE_Y,       "Y component" },
 407         { CKMODE_U,       "U component" },
 408         { CKMODE_V,       "V component" },
 409         { CKMODE_RGB,     "RGB" },
 410         { CKMODE_R,       "R component" },
 411         { CKMODE_G,       "G component" },
 412         { CKMODE_B,       "B component" },
 413 };
 414
 415 static int armada_overlay_create_properties(struct drm_device *dev)
 416 {
 417         struct armada_private *priv = dev->dev_private;
 418
 419         if (priv->colorkey_prop)
 420                 return 0;
 421
 422         priv->colorkey_prop = drm_property_create_range(dev, 0,
 423                                 "colorkey", 0, 0xffffff);
 424         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 425                                 "colorkey_min", 0, 0xffffff);
 426         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 427                                 "colorkey_max", 0, 0xffffff);
 428         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 429                                 "colorkey_val", 0, 0xffffff);
 430         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 431                                 "colorkey_alpha", 0, 0xffffff);
 432         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 433                                 "colorkey_mode",
 434                                 armada_drm_colorkey_enum_list,
 435                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 436         priv->brightness_prop = drm_property_create_range(dev, 0,
 437                                 "brightness", 0, 256 + 255);
 438         priv->contrast_prop = drm_property_create_range(dev, 0,
 439                                 "contrast", 0, 0x7fff);
 440         priv->saturation_prop = drm_property_create_range(dev, 0,
 441                                 "saturation", 0, 0x7fff);
 442
 443         if (!priv->colorkey_prop)
 444                 return -ENOMEM;
 445
 446         return 0;
 447 }
 448
 449 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 450 {
 451         struct armada_private *priv = dev->dev_private;
 452         struct drm_mode_object *mobj;
 453         struct armada_ovl_plane *dplane;
 454         int ret;
 455
 456         ret = armada_overlay_create_properties(dev);
 457         if (ret)
 458                 return ret;
 459
 460         dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
 461         if (!dplane)
 462                 return -ENOMEM;
 463
 464         ret = armada_drm_plane_init(&dplane->base);
 465         if (ret) {
 466                 kfree(dplane);
 467                 return ret;
 468         }
 469
 470         dplane->vbl.work.fn = armada_ovl_plane_work;
 471
 472         ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
 473                                        &armada_ovl_plane_funcs,
 474                                        armada_ovl_formats,
 475                                        ARRAY_SIZE(armada_ovl_formats),
 476                                        DRM_PLANE_TYPE_OVERLAY, NULL);
 477         if (ret) {
 478                 kfree(dplane);
 479                 return ret;
 480         }
 481
 482         dplane->prop.colorkey_yr = 0xfefefe00;
 483         dplane->prop.colorkey_ug = 0x01010100;
 484         dplane->prop.colorkey_vb = 0x01010100;
 485         dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB) |
 486                                      CFG_ALPHAM_GRA | CFG_ALPHA(0);
 487         dplane->prop.colorkey_enable = ADV_GRACOLORKEY;
 488         dplane->prop.brightness = 0;
 489         dplane->prop.contrast = 0x4000;
 490         dplane->prop.saturation = 0x4000;
 491
 492         mobj = &dplane->base.base.base;
 493         drm_object_attach_property(mobj, priv->colorkey_prop,
 494                                    0x0101fe);
 495         drm_object_attach_property(mobj, priv->colorkey_min_prop,
 496                                    0x0101fe);
 497         drm_object_attach_property(mobj, priv->colorkey_max_prop,
 498                                    0x0101fe);
 499         drm_object_attach_property(mobj, priv->colorkey_val_prop,
 500                                    0x0101fe);
 501         drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
 502                                    0x000000);
 503         drm_object_attach_property(mobj, priv->colorkey_mode_prop,
 504                                    CKMODE_RGB);
 505         drm_object_attach_property(mobj, priv->brightness_prop, 256);
 506         drm_object_attach_property(mobj, priv->contrast_prop,
 507                                    dplane->prop.contrast);
 508         drm_object_attach_property(mobj, priv->saturation_prop,
 509                                    dplane->prop.saturation);
 510
 511         return 0;
 512 }