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 {
  99         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 100         struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 101         struct drm_rect src = {
 102                 .x1 = src_x,
 103                 .y1 = src_y,
 104                 .x2 = src_x + src_w,
 105                 .y2 = src_y + src_h,
 106         };
 107         struct drm_rect dest = {
 108                 .x1 = crtc_x,
 109                 .y1 = crtc_y,
 110                 .x2 = crtc_x + crtc_w,
 111                 .y2 = crtc_y + crtc_h,
 112         };
 113         const struct drm_rect clip = {
 114                 .x2 = crtc->mode.hdisplay,
 115                 .y2 = crtc->mode.vdisplay,
 116         };
 117         uint32_t val, ctrl0;
 118         unsigned idx = 0;
 119         bool visible;
 120         int ret;
 121
 122         trace_armada_ovl_plane_update(plane, crtc, fb,
 123                                  crtc_x, crtc_y, crtc_w, crtc_h,
 124                                  src_x, src_y, src_w, src_h);
 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->base.state.ctrl0 == ctrl0) {
 148                 val = (drm_rect_height(&src) & 0xffff0000) |
 149                       drm_rect_width(&src) >> 16;
 150                 dplane->base.state.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->base.state.dst_hw = val;
 155                 writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
 156
 157                 val = dest.y1 << 16 | dest.x1;
 158                 dplane->base.state.dst_yx = val;
 159                 writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
 160
 161                 return 0;
 162         } else if (~dplane->base.state.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                 u32 addrs[3], pixel_format;
 173                 int num_planes, hsub;
 174
 175                 /*
 176                  * Take a reference on the new framebuffer - we want to
 177                  * hold on to it while the hardware is displaying it.
 178                  */
 179                 drm_framebuffer_reference(fb);
 180
 181                 if (plane->fb)
 182                         armada_ovl_retire_fb(dplane, plane->fb);
 183
 184                 src_y = src.y1 >> 16;
 185                 src_x = src.x1 >> 16;
 186
 187                 armada_drm_plane_calc_addrs(addrs, fb, src_x, src_y);
 188
 189                 pixel_format = fb->pixel_format;
 190                 hsub = drm_format_horz_chroma_subsampling(pixel_format);
 191                 num_planes = drm_format_num_planes(pixel_format);
 192
 193                 /*
 194                  * Annoyingly, shifting a YUYV-format image by one pixel
 195                  * causes the U/V planes to toggle.  Toggle the UV swap.
 196                  * (Unfortunately, this causes momentary colour flickering.)
 197                  */
 198                 if (src_x & (hsub - 1) && num_planes == 1)
 199                         ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
 200
 201                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
 202                                      LCD_SPU_DMA_START_ADDR_Y0);
 203                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
 204                                      LCD_SPU_DMA_START_ADDR_U0);
 205                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
 206                                      LCD_SPU_DMA_START_ADDR_V0);
 207                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
 208                                      LCD_SPU_DMA_START_ADDR_Y1);
 209                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
 210                                      LCD_SPU_DMA_START_ADDR_U1);
 211                 armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
 212                                      LCD_SPU_DMA_START_ADDR_V1);
 213
 214                 val = fb->pitches[0] << 16 | fb->pitches[0];
 215                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 216                                      LCD_SPU_DMA_PITCH_YC);
 217                 val = fb->pitches[1] << 16 | fb->pitches[2];
 218                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 219                                      LCD_SPU_DMA_PITCH_UV);
 220         }
 221
 222         val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
 223         if (dplane->base.state.src_hw != val) {
 224                 dplane->base.state.src_hw = val;
 225                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 226                                      LCD_SPU_DMA_HPXL_VLN);
 227         }
 228
 229         val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
 230         if (dplane->base.state.dst_hw != val) {
 231                 dplane->base.state.dst_hw = val;
 232                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 233                                      LCD_SPU_DZM_HPXL_VLN);
 234         }
 235
 236         val = dest.y1 << 16 | dest.x1;
 237         if (dplane->base.state.dst_yx != val) {
 238                 dplane->base.state.dst_yx = val;
 239                 armada_reg_queue_set(dplane->vbl.regs, idx, val,
 240                                      LCD_SPU_DMA_OVSA_HPXL_VLN);
 241         }
 242
 243         if (dplane->base.state.ctrl0 != ctrl0) {
 244                 dplane->base.state.ctrl0 = ctrl0;
 245                 armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
 246                         CFG_CBSH_ENA | CFG_DMAFORMAT | CFG_DMA_FTOGGLE |
 247                         CFG_DMA_HSMOOTH | CFG_DMA_TSTMODE |
 248                         CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV | CFG_SWAPYU |
 249                         CFG_YUV2RGB) | CFG_DMA_ENA,
 250                         LCD_SPU_DMA_CTRL0);
 251         }
 252         if (idx) {
 253                 armada_reg_queue_end(dplane->vbl.regs, idx);
 254                 armada_drm_plane_work_queue(dcrtc, &dplane->base,
 255                                             &dplane->vbl.work);
 256         }
 257         return 0;
 258 }
 259
 260 static int armada_ovl_plane_disable(struct drm_plane *plane)
 261 {
 262         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 263         struct drm_framebuffer *fb;
 264         struct armada_crtc *dcrtc;
 265
 266         if (!dplane->base.base.crtc)
 267                 return 0;
 268
 269         dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);
 270
 271         armada_drm_plane_work_cancel(dcrtc, &dplane->base);
 272         armada_drm_crtc_plane_disable(dcrtc, plane);
 273
 274         dcrtc->plane = NULL;
 275         dplane->base.state.ctrl0 = 0;
 276
 277         fb = xchg(&dplane->old_fb, NULL);
 278         if (fb)
 279                 drm_framebuffer_unreference(fb);
 280
 281         return 0;
 282 }
 283
 284 static void armada_ovl_plane_destroy(struct drm_plane *plane)
 285 {
 286         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 287
 288         drm_plane_cleanup(plane);
 289
 290         kfree(dplane);
 291 }
 292
 293 static int armada_ovl_plane_set_property(struct drm_plane *plane,
 294         struct drm_property *property, uint64_t val)
 295 {
 296         struct armada_private *priv = plane->dev->dev_private;
 297         struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 298         bool update_attr = false;
 299
 300         if (property == priv->colorkey_prop) {
 301 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 302                 dplane->prop.colorkey_yr = CCC(K2R(val));
 303                 dplane->prop.colorkey_ug = CCC(K2G(val));
 304                 dplane->prop.colorkey_vb = CCC(K2B(val));
 305 #undef CCC
 306                 update_attr = true;
 307         } else if (property == priv->colorkey_min_prop) {
 308                 dplane->prop.colorkey_yr &= ~0x00ff0000;
 309                 dplane->prop.colorkey_yr |= K2R(val) << 16;
 310                 dplane->prop.colorkey_ug &= ~0x00ff0000;
 311                 dplane->prop.colorkey_ug |= K2G(val) << 16;
 312                 dplane->prop.colorkey_vb &= ~0x00ff0000;
 313                 dplane->prop.colorkey_vb |= K2B(val) << 16;
 314                 update_attr = true;
 315         } else if (property == priv->colorkey_max_prop) {
 316                 dplane->prop.colorkey_yr &= ~0xff000000;
 317                 dplane->prop.colorkey_yr |= K2R(val) << 24;
 318                 dplane->prop.colorkey_ug &= ~0xff000000;
 319                 dplane->prop.colorkey_ug |= K2G(val) << 24;
 320                 dplane->prop.colorkey_vb &= ~0xff000000;
 321                 dplane->prop.colorkey_vb |= K2B(val) << 24;
 322                 update_attr = true;
 323         } else if (property == priv->colorkey_val_prop) {
 324                 dplane->prop.colorkey_yr &= ~0x0000ff00;
 325                 dplane->prop.colorkey_yr |= K2R(val) << 8;
 326                 dplane->prop.colorkey_ug &= ~0x0000ff00;
 327                 dplane->prop.colorkey_ug |= K2G(val) << 8;
 328                 dplane->prop.colorkey_vb &= ~0x0000ff00;
 329                 dplane->prop.colorkey_vb |= K2B(val) << 8;
 330                 update_attr = true;
 331         } else if (property == priv->colorkey_alpha_prop) {
 332                 dplane->prop.colorkey_yr &= ~0x000000ff;
 333                 dplane->prop.colorkey_yr |= K2R(val);
 334                 dplane->prop.colorkey_ug &= ~0x000000ff;
 335                 dplane->prop.colorkey_ug |= K2G(val);
 336                 dplane->prop.colorkey_vb &= ~0x000000ff;
 337                 dplane->prop.colorkey_vb |= K2B(val);
 338                 update_attr = true;
 339         } else if (property == priv->colorkey_mode_prop) {
 340                 dplane->prop.colorkey_mode &= ~CFG_CKMODE_MASK;
 341                 dplane->prop.colorkey_mode |= CFG_CKMODE(val);
 342                 update_attr = true;
 343         } else if (property == priv->brightness_prop) {
 344                 dplane->prop.brightness = val - 256;
 345                 update_attr = true;
 346         } else if (property == priv->contrast_prop) {
 347                 dplane->prop.contrast = val;
 348                 update_attr = true;
 349         } else if (property == priv->saturation_prop) {
 350                 dplane->prop.saturation = val;
 351                 update_attr = true;
 352         }
 353
 354         if (update_attr && dplane->base.base.crtc)
 355                 armada_ovl_update_attr(&dplane->prop,
 356                                        drm_to_armada_crtc(dplane->base.base.crtc));
 357
 358         return 0;
 359 }
 360
 361 static const struct drm_plane_funcs armada_ovl_plane_funcs = {
 362         .update_plane   = armada_ovl_plane_update,
 363         .disable_plane  = armada_ovl_plane_disable,
 364         .destroy        = armada_ovl_plane_destroy,
 365         .set_property   = armada_ovl_plane_set_property,
 366 };
 367
 368 static const uint32_t armada_ovl_formats[] = {
 369         DRM_FORMAT_UYVY,
 370         DRM_FORMAT_YUYV,
 371         DRM_FORMAT_YUV420,
 372         DRM_FORMAT_YVU420,
 373         DRM_FORMAT_YUV422,
 374         DRM_FORMAT_YVU422,
 375         DRM_FORMAT_VYUY,
 376         DRM_FORMAT_YVYU,
 377         DRM_FORMAT_ARGB8888,
 378         DRM_FORMAT_ABGR8888,
 379         DRM_FORMAT_XRGB8888,
 380         DRM_FORMAT_XBGR8888,
 381         DRM_FORMAT_RGB888,
 382         DRM_FORMAT_BGR888,
 383         DRM_FORMAT_ARGB1555,
 384         DRM_FORMAT_ABGR1555,
 385         DRM_FORMAT_RGB565,
 386         DRM_FORMAT_BGR565,
 387 };
 388
 389 static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 390         { CKMODE_DISABLE, "disabled" },
 391         { CKMODE_Y,       "Y component" },
 392         { CKMODE_U,       "U component" },
 393         { CKMODE_V,       "V component" },
 394         { CKMODE_RGB,     "RGB" },
 395         { CKMODE_R,       "R component" },
 396         { CKMODE_G,       "G component" },
 397         { CKMODE_B,       "B component" },
 398 };
 399
 400 static int armada_overlay_create_properties(struct drm_device *dev)
 401 {
 402         struct armada_private *priv = dev->dev_private;
 403
 404         if (priv->colorkey_prop)
 405                 return 0;
 406
 407         priv->colorkey_prop = drm_property_create_range(dev, 0,
 408                                 "colorkey", 0, 0xffffff);
 409         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 410                                 "colorkey_min", 0, 0xffffff);
 411         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 412                                 "colorkey_max", 0, 0xffffff);
 413         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 414                                 "colorkey_val", 0, 0xffffff);
 415         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 416                                 "colorkey_alpha", 0, 0xffffff);
 417         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 418                                 "colorkey_mode",
 419                                 armada_drm_colorkey_enum_list,
 420                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 421         priv->brightness_prop = drm_property_create_range(dev, 0,
 422                                 "brightness", 0, 256 + 255);
 423         priv->contrast_prop = drm_property_create_range(dev, 0,
 424                                 "contrast", 0, 0x7fff);
 425         priv->saturation_prop = drm_property_create_range(dev, 0,
 426                                 "saturation", 0, 0x7fff);
 427
 428         if (!priv->colorkey_prop)
 429                 return -ENOMEM;
 430
 431         return 0;
 432 }
 433
 434 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 435 {
 436         struct armada_private *priv = dev->dev_private;
 437         struct drm_mode_object *mobj;
 438         struct armada_ovl_plane *dplane;
 439         int ret;
 440
 441         ret = armada_overlay_create_properties(dev);
 442         if (ret)
 443                 return ret;
 444
 445         dplane = kzalloc(sizeof(*dplane), GFP_KERNEL);
 446         if (!dplane)
 447                 return -ENOMEM;
 448
 449         ret = armada_drm_plane_init(&dplane->base);
 450         if (ret) {
 451                 kfree(dplane);
 452                 return ret;
 453         }
 454
 455         dplane->vbl.work.fn = armada_ovl_plane_work;
 456
 457         ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
 458                                        &armada_ovl_plane_funcs,
 459                                        armada_ovl_formats,
 460                                        ARRAY_SIZE(armada_ovl_formats),
 461                                        DRM_PLANE_TYPE_OVERLAY, NULL);
 462         if (ret) {
 463                 kfree(dplane);
 464                 return ret;
 465         }
 466
 467         dplane->prop.colorkey_yr = 0xfefefe00;
 468         dplane->prop.colorkey_ug = 0x01010100;
 469         dplane->prop.colorkey_vb = 0x01010100;
 470         dplane->prop.colorkey_mode = CFG_CKMODE(CKMODE_RGB);
 471         dplane->prop.brightness = 0;
 472         dplane->prop.contrast = 0x4000;
 473         dplane->prop.saturation = 0x4000;
 474
 475         mobj = &dplane->base.base.base;
 476         drm_object_attach_property(mobj, priv->colorkey_prop,
 477                                    0x0101fe);
 478         drm_object_attach_property(mobj, priv->colorkey_min_prop,
 479                                    0x0101fe);
 480         drm_object_attach_property(mobj, priv->colorkey_max_prop,
 481                                    0x0101fe);
 482         drm_object_attach_property(mobj, priv->colorkey_val_prop,
 483                                    0x0101fe);
 484         drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
 485                                    0x000000);
 486         drm_object_attach_property(mobj, priv->colorkey_mode_prop,
 487                                    CKMODE_RGB);
 488         drm_object_attach_property(mobj, priv->brightness_prop, 256);
 489         drm_object_attach_property(mobj, priv->contrast_prop,
 490                                    dplane->prop.contrast);
 491         drm_object_attach_property(mobj, priv->saturation_prop,
 492                                    dplane->prop.saturation);
 493
 494         return 0;
 495 }