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 #include "armada_trace.h"
  19
  20 struct armada_ovl_plane_properties {
  21         uint32_t colorkey_yr;
  22         uint32_t colorkey_ug;
  23         uint32_t colorkey_vb;
  24 #define K2R(val) (((val) >> 0) & 0xff)
  25 #define K2G(val) (((val) >> 8) & 0xff)
  26 #define K2B(val) (((val) >> 16) & 0xff)
  27         int16_t  brightness;
  28         uint16_t contrast;
  29         uint16_t saturation;
  30         uint32_t colorkey_mode;
  31 };
  32
  33 struct armada_ovl_plane {
  34         struct armada_plane base;
  35         struct drm_framebuffer *old_fb;
  36         struct {
  37                 struct armada_plane_work work;
  38                 struct armada_regs regs[13];
  39         } vbl;
  40         struct armada_ovl_plane_properties prop;
  41 };
  42 #define drm_to_armada_ovl_plane(p) \
  43         container_of(p, struct armada_ovl_plane, base.base)
  44
  45
  46 static void
  47 armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
  48         struct armada_crtc *dcrtc)
  49 {
  50         writel_relaxed(prop->colorkey_yr, dcrtc->base + LCD_SPU_COLORKEY_Y);
  51         writel_relaxed(prop->colorkey_ug, dcrtc->base + LCD_SPU_COLORKEY_U);
  52         writel_relaxed(prop->colorkey_vb, dcrtc->base + LCD_SPU_COLORKEY_V);
  53
  54         writel_relaxed(prop->brightness << 16 | prop->contrast,
  55                        dcrtc->base + LCD_SPU_CONTRAST);
  56         /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
  57         writel_relaxed(prop->saturation << 16,
  58                        dcrtc->base + LCD_SPU_SATURATION);
  59         writel_relaxed(0x00002000, dcrtc->base + LCD_SPU_CBSH_HUE);
  60
  61         spin_lock_irq(&dcrtc->irq_lock);
  62         armada_updatel(prop->colorkey_mode | CFG_ALPHAM_GRA,
  63                      CFG_CKMODE_MASK | CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
  64                      dcrtc->base + LCD_SPU_DMA_CTRL1);
  65
  66         armada_updatel(ADV_GRACOLORKEY, 0, dcrtc->base + LCD_SPU_ADV_REG);
  67         spin_unlock_irq(&dcrtc->irq_lock);
  68 }
  69
  70 static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
  71         struct drm_framebuffer *fb)
  72 {
  73         struct drm_framebuffer *old_fb;
  74
  75         old_fb = xchg(&dplane->old_fb, fb);
  76
  77         if (old_fb)
  78                 armada_drm_queue_unref_work(dplane->base.base.dev, old_fb);
  79 }
  80
  81 /* === Plane support === */
  82 static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
  83         struct armada_plane *plane, struct armada_plane_work *work)
  84 {
  85         struct armada_ovl_plane *dplane = container_of(plane, struct armada_ovl_plane, base);
  86
  87         trace_armada_ovl_plane_work(&dcrtc->crtc, &plane->base);
  88
  89         armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
  90         armada_ovl_retire_fb(dplane, NULL);
  91 }
  92
  93 static int
  94 armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
  95         struct drm_framebuffer *fb,
  96         int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
  97         uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
  98         struct drm_modeset_acquire_ctx *ctx)
  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         trace_armada_ovl_plane_update(plane, crtc, fb,
 124                                  crtc_x, crtc_y, crtc_w, crtc_h,
 125                                  src_x, src_y, src_w, src_h);
 126
 127         ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
 128                                             DRM_MODE_ROTATE_0,
 129                                             0, INT_MAX, true, false, &visible);
 130         if (ret)
 131                 return ret;
 132
 133         ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
 134                 CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
 135                 CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;
 136
 137         /* Does the position/size result in nothing to display? */
 138         if (!visible)
 139                 ctrl0 &= ~CFG_DMA_ENA;
 140
 141         if (!dcrtc->plane) {
 142                 dcrtc->plane = plane;
 143                 armada_ovl_update_attr(&dplane->prop, dcrtc);
 144         }
 145
 146         /* FIXME: overlay on an interlaced display */
 147         /* Just updating the position/size? */
 148         if (plane->fb == fb && dplane->base.state.ctrl0 == ctrl0) {
 149                 val = (drm_rect_height(&src) & 0xffff0000) |
 150                       drm_rect_width(&src) >> 16;
 151                 dplane->base.state.src_hw = val;
 152                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);
 153
 154                 val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 155                 dplane->base.state.dst_hw = val;
 156                 writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
 157
 158                 val = dest.y1 << 16 | dest.x1;
 159                 dplane->base.state.dst_yx = val;
 160                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
 161
 162                 return 0;
 163         } else if (~dplane->base.state.ctrl0 & ctrl0 & CFG_DMA_ENA) {
 164                 /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
 165                 armada_updatel(0, CFG_PDWN16x66 | CFG_PDWN32x66,
 166                                dcrtc->base + LCD_SPU_SRAM_PARA1);
 167         }
 168
 169         if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
 170                 armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 171
 172         if (plane->fb != fb) {
 173                 u32 addrs[3], pixel_format;
 174                 int 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_get(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                 armada_drm_plane_calc_addrs(addrs, fb, src_x, src_y);
 189
 190                 pixel_format = fb->format->format;
 191                 hsub = drm_format_horz_chroma_subsampling(pixel_format);
 192                 num_planes = fb->format->num_planes;
 193
 194                 /*
 195                  * Annoyingly, shifting a YUYV-format image by one pixel
 196                  * causes the U/V planes to toggle.  Toggle the UV swap.
 197                  * (Unfortunately, this causes momentary colour flickering.)
 198                  */
 199                 if (src_x & (hsub - 1) && num_planes == 1)
 200                         ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
 201
 202                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
 203                                      LCD_SPU_DMA_START_ADDR_Y0);
 204                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
 205                                      LCD_SPU_DMA_START_ADDR_U0);
 206                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
 207                                      LCD_SPU_DMA_START_ADDR_V0);
 208                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
 209                                      LCD_SPU_DMA_START_ADDR_Y1);
 210                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
 211                                      LCD_SPU_DMA_START_ADDR_U1);
 212                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
 213                                      LCD_SPU_DMA_START_ADDR_V1);
 214
 215                 val = fb->pitches[0] << 16 | fb->pitches[0];
 216                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 217                                      LCD_SPU_DMA_PITCH_YC);
 218                 val = fb->pitches[1] << 16 | fb->pitches[2];
 219                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 220                                      LCD_SPU_DMA_PITCH_UV);
 221         }
 222
 223         val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
 224         if (dplane->base.state.src_hw != val) {
 225                 dplane->base.state.src_hw = val;
 226                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 227                                      LCD_SPU_DMA_HPXL_VLN);
 228         }
 229
 230         val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 231         if (dplane->base.state.dst_hw != val) {
 232                 dplane->base.state.dst_hw = val;
 233                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 234                                      LCD_SPU_DZM_HPXL_VLN);
 235         }
 236
 237         val = dest.y1 << 16 | dest.x1;
 238         if (dplane->base.state.dst_yx != val) {
 239                 dplane->base.state.dst_yx = val;
 240                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 241                                      LCD_SPU_DMA_OVSA_HPXL_VLN);
 242         }
 243
 244         if (dplane->base.state.ctrl0 != ctrl0) {
 245                 dplane->base.state.ctrl0 = ctrl0;
 246                 armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
 247                         CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
 248                         CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
 249                         CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
 250                         CFG_YUV2RGB) | CFG_DMA_ENA,
 251                         LCD_SPU_DMA_CTRL0);
 252         }
 253         if (idx) {
 254                 armada_reg_queue_end(dplane->vbl.regs, idx);
 255                 armada_drm_plane_work_queue(dcrtc, &dplane->base,
 256                                             &dplane->vbl.work);
 257         }
 258         return 0;
 259 }
 260
 261 static int armada_ovl_plane_disable(struct drm_plane *plane,
 262                                     struct drm_modeset_acquire_ctx *ctx)
 263 {
 264         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 265         struct drm_framebuffer *fb;
 266         struct armada_crtc *dcrtc;
 267
 268         if (!dplane->base.base.crtc)
 269                 return 0;
 270
 271         dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);
 272
 273         armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 274         armada_drm_crtc_plane_disable(dcrtc, plane);
 275
 276         dcrtc->plane = NULL;
 277         dplane->base.state.ctrl0 = 0;
 278
 279         fb = xchg(&dplane->old_fb, NULL);
 280         if (fb)
 281                 drm_framebuffer_put(fb);
 282
 283         return 0;
 284 }
 285
 286 static void armada_ovl_plane_destroy(struct drm_plane *plane)
 287 {
 288         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 289
 290         drm_plane_cleanup(plane);
 291
 292         kfree(dplane);
 293 }
 294
 295 static int armada_ovl_plane_set_property(struct drm_plane *plane,
 296         struct drm_property *property, uint64_t val)
 297 {
 298         struct armada_private *priv = plane->dev->dev_private;
 299         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 300         bool update_attr = false;
 301
 302         if (property == priv->colorkey_prop) {
 303 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 304                 dplane->prop.colorkey_yr = CCC(K2R(val));
 305                 dplane->prop.colorkey_ug = CCC(K2G(val));
 306                 dplane->prop.colorkey_vb = CCC(K2B(val));
 307 #undef CCC
 308                 update_attr = true;
 309         } else if (property == priv->colorkey_min_prop) {
 310                 dplane->prop.colorkey_yr &= ~0x00ff0000;
 311                 dplane->prop.colorkey_yr |= K2R(val) << 16;
 312                 dplane->prop.colorkey_ug &= ~0x00ff0000;
 313                 dplane->prop.colorkey_ug |= K2G(val) << 16;
 314                 dplane->prop.colorkey_vb &= ~0x00ff0000;
 315                 dplane->prop.colorkey_vb |= K2B(val) << 16;
 316                 update_attr = true;
 317         } else if (property == priv->colorkey_max_prop) {
 318                 dplane->prop.colorkey_yr &= ~0xff000000;
 319                 dplane->prop.colorkey_yr |= K2R(val) << 24;
 320                 dplane->prop.colorkey_ug &= ~0xff000000;
 321                 dplane->prop.colorkey_ug |= K2G(val) << 24;
 322                 dplane->prop.colorkey_vb &= ~0xff000000;
 323                 dplane->prop.colorkey_vb |= K2B(val) << 24;
 324                 update_attr = true;
 325         } else if (property == priv->colorkey_val_prop) {
 326                 dplane->prop.colorkey_yr &= ~0x0000ff00;
 327                 dplane->prop.colorkey_yr |= K2R(val) << 8;
 328                 dplane->prop.colorkey_ug &= ~0x0000ff00;
 329                 dplane->prop.colorkey_ug |= K2G(val) << 8;
 330                 dplane->prop.colorkey_vb &= ~0x0000ff00;
 331                 dplane->prop.colorkey_vb |= K2B(val) << 8;
 332                 update_attr = true;
 333         } else if (property == priv->colorkey_alpha_prop) {
 334                 dplane->prop.colorkey_yr &= ~0x000000ff;
 335                 dplane->prop.colorkey_yr |= K2R(val);
 336                 dplane->prop.colorkey_ug &= ~0x000000ff;
 337                 dplane->prop.colorkey_ug |= K2G(val);
 338                 dplane->prop.colorkey_vb &= ~0x000000ff;
 339                 dplane->prop.colorkey_vb |= K2B(val);
 340                 update_attr = true;
 341         } else if (property == priv->colorkey_mode_prop) {
 342                 dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
 343                 dplane->prop.colorkey_mode |= CFG_CKMODE(val);
 344                 update_attr = true;
 345         } else if (property == priv->brightness_prop) {
 346                 dplane->prop.brightness = val - 256;
 347                 update_attr = true;
 348         } else if (property == priv->contrast_prop) {
 349                 dplane->prop.contrast = val;
 350                 update_attr = true;
 351         } else if (property == priv->saturation_prop) {
 352                 dplane->prop.saturation = val;
 353                 update_attr = true;
 354         }
 355
 356         if (update_attr && dplane->base.base.crtc)
 357                 armada_ovl_update_attr(&dplane->prop,
 358                                        drm_to_armada_crtc(dplane->base.base.crtc));
 359
 360         return 0;
 361 }
 362
 363 static const struct drm_plane_funcs armada_ovl_plane_funcs = {
 364         .update_plane   = armada_ovl_plane_update,
 365         .disable_plane  = armada_ovl_plane_disable,
 366         .destroy        = armada_ovl_plane_destroy,
 367         .set_property   = armada_ovl_plane_set_property,
 368 };
 369
 370 static const uint32_t armada_ovl_formats[] = {
 371         DRM_FORMAT_UYVY,
 372         DRM_FORMAT_YUYV,
 373         DRM_FORMAT_YUV420,
 374         DRM_FORMAT_YVU420,
 375         DRM_FORMAT_YUV422,
 376         DRM_FORMAT_YVU422,
 377         DRM_FORMAT_VYUY,
 378         DRM_FORMAT_YVYU,
 379         DRM_FORMAT_ARGB8888,
 380         DRM_FORMAT_ABGR8888,
 381         DRM_FORMAT_XRGB8888,
 382         DRM_FORMAT_XBGR8888,
 383         DRM_FORMAT_RGB888,
 384         DRM_FORMAT_BGR888,
 385         DRM_FORMAT_ARGB1555,
 386         DRM_FORMAT_ABGR1555,
 387         DRM_FORMAT_RGB565,
 388         DRM_FORMAT_BGR565,
 389 };
 390
 391 static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 392         { CKMODE_DISABLE, "disabled" },
 393         { CKMODE_Y,       "Y component" },
 394         { CKMODE_U,       "U component" },
 395         { CKMODE_V,       "V component" },
 396         { CKMODE_RGB,     "RGB" },
 397         { CKMODE_R,       "R component" },
 398         { CKMODE_G,       "G component" },
 399         { CKMODE_B,       "B component" },
 400 };
 401
 402 static int armada_overlay_create_properties(struct drm_device *dev)
 403 {
 404         struct armada_private *priv = dev->dev_private;
 405
 406         if (priv->colorkey_prop)
 407                 return 0;
 408
 409         priv->colorkey_prop = drm_property_create_range(dev, 0,
 410                                 "colorkey", 0, 0xffffff);
 411         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 412                                 "colorkey_min", 0, 0xffffff);
 413         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 414                                 "colorkey_max", 0, 0xffffff);
 415         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 416                                 "colorkey_val", 0, 0xffffff);
 417         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 418                                 "colorkey_alpha", 0, 0xffffff);
 419         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 420                                 "colorkey_mode",
 421                                 armada_drm_colorkey_enum_list,
 422                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 423         priv->brightness_prop = drm_property_create_range(dev, 0,
 424                                 "brightness", 0, 256 + 255);
 425         priv->contrast_prop = drm_property_create_range(dev, 0,
 426                                 "contrast", 0, 0x7fff);
 427         priv->saturation_prop = drm_property_create_range(dev, 0,
 428                                 "saturation", 0, 0x7fff);
 429
 430         if (!priv->colorkey_prop)
 431                 return -ENOMEM;
 432
 433         return 0;
 434 }
 435
 436 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 437 {
 438         struct armada_private *priv = dev->dev_private;
 439         struct drm_mode_object *mobj;
 440         struct armada_ovl_plane *dplane;
 441         int ret;
 442
 443         ret = armada_overlay_create_properties(dev);
 444         if (ret)
 445                 return ret;
 446
 447         dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
 448         if (!dplane)
 449                 return -ENOMEM;
 450
 451         ret = armada_drm_plane_init(&dplane->base);
 452         if (ret) {
 453                 kfree(dplane);
 454                 return ret;
 455         }
 456
 457         dplane->vbl.work.fn = armada_ovl_plane_work;
 458
 459         ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
 460                                        &armada_ovl_plane_funcs,
 461                                        armada_ovl_formats,
 462                                        ARRAY_SIZE(armada_ovl_formats),
 463                                        NULL,
 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 }