root/drivers/gpu/drm/armada/armada_overlay.c

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DEFINITIONS

This source file includes following definitions.
  1. armada_spu_contrast
  2. armada_spu_saturation
  3. armada_csc
  4. armada_drm_overlay_plane_atomic_update
  5. armada_drm_overlay_plane_atomic_disable
  6. armada_overlay_plane_update
  7. armada_ovl_plane_destroy
  8. armada_overlay_reset
  9. armada_overlay_duplicate_state
  10. armada_overlay_set_property
  11. armada_overlay_get_property
  12. armada_overlay_create_properties
  13. armada_overlay_plane_create

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2012 Russell King
   4  *  Rewritten from the dovefb driver, and Armada510 manuals.
   5  */
   6 
   7 #include <drm/armada_drm.h>
   8 #include <drm/drm_atomic.h>
   9 #include <drm/drm_atomic_helper.h>
  10 #include <drm/drm_atomic_uapi.h>
  11 #include <drm/drm_fourcc.h>
  12 #include <drm/drm_plane_helper.h>
  13 
  14 #include "armada_crtc.h"
  15 #include "armada_drm.h"
  16 #include "armada_fb.h"
  17 #include "armada_gem.h"
  18 #include "armada_hw.h"
  19 #include "armada_ioctlP.h"
  20 #include "armada_plane.h"
  21 #include "armada_trace.h"
  22 
  23 #define DEFAULT_BRIGHTNESS      0
  24 #define DEFAULT_CONTRAST        0x4000
  25 #define DEFAULT_SATURATION      0x4000
  26 #define DEFAULT_ENCODING        DRM_COLOR_YCBCR_BT601
  27 
  28 struct armada_overlay_state {
  29         struct armada_plane_state base;
  30         u32 colorkey_yr;
  31         u32 colorkey_ug;
  32         u32 colorkey_vb;
  33         u32 colorkey_mode;
  34         u32 colorkey_enable;
  35         s16 brightness;
  36         u16 contrast;
  37         u16 saturation;
  38 };
  39 #define drm_to_overlay_state(s) \
  40         container_of(s, struct armada_overlay_state, base.base)
  41 
  42 static inline u32 armada_spu_contrast(struct drm_plane_state *state)
  43 {
  44         return drm_to_overlay_state(state)->brightness << 16 |
  45                drm_to_overlay_state(state)->contrast;
  46 }
  47 
  48 static inline u32 armada_spu_saturation(struct drm_plane_state *state)
  49 {
  50         /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
  51         return drm_to_overlay_state(state)->saturation << 16;
  52 }
  53 
  54 static inline u32 armada_csc(struct drm_plane_state *state)
  55 {
  56         /*
  57          * The CFG_CSC_RGB_* settings control the output of the colour space
  58          * converter, setting the range of output values it produces.  Since
  59          * we will be blending with the full-range graphics, we need to
  60          * produce full-range RGB output from the conversion.
  61          */
  62         return CFG_CSC_RGB_COMPUTER |
  63                (state->color_encoding == DRM_COLOR_YCBCR_BT709 ?
  64                         CFG_CSC_YUV_CCIR709 : CFG_CSC_YUV_CCIR601);
  65 }
  66 
  67 /* === Plane support === */
  68 static void armada_drm_overlay_plane_atomic_update(struct drm_plane *plane,
  69         struct drm_plane_state *old_state)
  70 {
  71         struct drm_plane_state *state = plane->state;
  72         struct armada_crtc *dcrtc;
  73         struct armada_regs *regs;
  74         unsigned int idx;
  75         u32 cfg, cfg_mask, val;
  76 
  77         DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
  78 
  79         if (!state->fb || WARN_ON(!state->crtc))
  80                 return;
  81 
  82         DRM_DEBUG_KMS("[PLANE:%d:%s] is on [CRTC:%d:%s] with [FB:%d] visible %u->%u\n",
  83                 plane->base.id, plane->name,
  84                 state->crtc->base.id, state->crtc->name,
  85                 state->fb->base.id,
  86                 old_state->visible, state->visible);
  87 
  88         dcrtc = drm_to_armada_crtc(state->crtc);
  89         regs = dcrtc->regs + dcrtc->regs_idx;
  90 
  91         idx = 0;
  92         if (!old_state->visible && state->visible)
  93                 armada_reg_queue_mod(regs, idx,
  94                                      0, CFG_PDWN16x66 | CFG_PDWN32x66,
  95                                      LCD_SPU_SRAM_PARA1);
  96         val = armada_src_hw(state);
  97         if (armada_src_hw(old_state) != val)
  98                 armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_HPXL_VLN);
  99         val = armada_dst_yx(state);
 100         if (armada_dst_yx(old_state) != val)
 101                 armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_OVSA_HPXL_VLN);
 102         val = armada_dst_hw(state);
 103         if (armada_dst_hw(old_state) != val)
 104                 armada_reg_queue_set(regs, idx, val, LCD_SPU_DZM_HPXL_VLN);
 105         /* FIXME: overlay on an interlaced display */
 106         if (old_state->src.x1 != state->src.x1 ||
 107             old_state->src.y1 != state->src.y1 ||
 108             old_state->fb != state->fb ||
 109             state->crtc->state->mode_changed) {
 110                 const struct drm_format_info *format;
 111                 u16 src_x;
 112 
 113                 armada_reg_queue_set(regs, idx, armada_addr(state, 0, 0),
 114                                      LCD_SPU_DMA_START_ADDR_Y0);
 115                 armada_reg_queue_set(regs, idx, armada_addr(state, 0, 1),
 116                                      LCD_SPU_DMA_START_ADDR_U0);
 117                 armada_reg_queue_set(regs, idx, armada_addr(state, 0, 2),
 118                                      LCD_SPU_DMA_START_ADDR_V0);
 119                 armada_reg_queue_set(regs, idx, armada_addr(state, 1, 0),
 120                                      LCD_SPU_DMA_START_ADDR_Y1);
 121                 armada_reg_queue_set(regs, idx, armada_addr(state, 1, 1),
 122                                      LCD_SPU_DMA_START_ADDR_U1);
 123                 armada_reg_queue_set(regs, idx, armada_addr(state, 1, 2),
 124                                      LCD_SPU_DMA_START_ADDR_V1);
 125 
 126                 val = armada_pitch(state, 0) << 16 | armada_pitch(state, 0);
 127                 armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_YC);
 128                 val = armada_pitch(state, 1) << 16 | armada_pitch(state, 2);
 129                 armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_UV);
 130 
 131                 cfg = CFG_DMA_FMT(drm_fb_to_armada_fb(state->fb)->fmt) |
 132                       CFG_DMA_MOD(drm_fb_to_armada_fb(state->fb)->mod) |
 133                       CFG_CBSH_ENA;
 134                 if (state->visible)
 135                         cfg |= CFG_DMA_ENA;
 136 
 137                 /*
 138                  * Shifting a YUV packed format image by one pixel causes the
 139                  * U/V planes to swap.  Compensate for it by also toggling
 140                  * the UV swap.
 141                  */
 142                 format = state->fb->format;
 143                 src_x = state->src.x1 >> 16;
 144                 if (format->num_planes == 1 && src_x & (format->hsub - 1))
 145                         cfg ^= CFG_DMA_MOD(CFG_SWAPUV);
 146                 if (to_armada_plane_state(state)->interlace)
 147                         cfg |= CFG_DMA_FTOGGLE;
 148                 cfg_mask = CFG_CBSH_ENA | CFG_DMAFORMAT |
 149                            CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV |
 150                                        CFG_SWAPYU | CFG_YUV2RGB) |
 151                            CFG_DMA_FTOGGLE | CFG_DMA_TSTMODE |
 152                            CFG_DMA_ENA;
 153         } else if (old_state->visible != state->visible) {
 154                 cfg = state->visible ? CFG_DMA_ENA : 0;
 155                 cfg_mask = CFG_DMA_ENA;
 156         } else {
 157                 cfg = cfg_mask = 0;
 158         }
 159         if (drm_rect_width(&old_state->src) != drm_rect_width(&state->src) ||
 160             drm_rect_width(&old_state->dst) != drm_rect_width(&state->dst)) {
 161                 cfg_mask |= CFG_DMA_HSMOOTH;
 162                 if (drm_rect_width(&state->src) >> 16 !=
 163                     drm_rect_width(&state->dst))
 164                         cfg |= CFG_DMA_HSMOOTH;
 165         }
 166 
 167         if (cfg_mask)
 168                 armada_reg_queue_mod(regs, idx, cfg, cfg_mask,
 169                                      LCD_SPU_DMA_CTRL0);
 170 
 171         val = armada_spu_contrast(state);
 172         if ((!old_state->visible && state->visible) ||
 173             armada_spu_contrast(old_state) != val)
 174                 armada_reg_queue_set(regs, idx, val, LCD_SPU_CONTRAST);
 175         val = armada_spu_saturation(state);
 176         if ((!old_state->visible && state->visible) ||
 177             armada_spu_saturation(old_state) != val)
 178                 armada_reg_queue_set(regs, idx, val, LCD_SPU_SATURATION);
 179         if (!old_state->visible && state->visible)
 180                 armada_reg_queue_set(regs, idx, 0x00002000, LCD_SPU_CBSH_HUE);
 181         val = armada_csc(state);
 182         if ((!old_state->visible && state->visible) ||
 183             armada_csc(old_state) != val)
 184                 armada_reg_queue_mod(regs, idx, val, CFG_CSC_MASK,
 185                                      LCD_SPU_IOPAD_CONTROL);
 186         val = drm_to_overlay_state(state)->colorkey_yr;
 187         if ((!old_state->visible && state->visible) ||
 188             drm_to_overlay_state(old_state)->colorkey_yr != val)
 189                 armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_Y);
 190         val = drm_to_overlay_state(state)->colorkey_ug;
 191         if ((!old_state->visible && state->visible) ||
 192             drm_to_overlay_state(old_state)->colorkey_ug != val)
 193                 armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_U);
 194         val = drm_to_overlay_state(state)->colorkey_vb;
 195         if ((!old_state->visible && state->visible) ||
 196             drm_to_overlay_state(old_state)->colorkey_vb != val)
 197                 armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_V);
 198         val = drm_to_overlay_state(state)->colorkey_mode;
 199         if ((!old_state->visible && state->visible) ||
 200             drm_to_overlay_state(old_state)->colorkey_mode != val)
 201                 armada_reg_queue_mod(regs, idx, val, CFG_CKMODE_MASK |
 202                                      CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
 203                                      LCD_SPU_DMA_CTRL1);
 204         val = drm_to_overlay_state(state)->colorkey_enable;
 205         if (((!old_state->visible && state->visible) ||
 206              drm_to_overlay_state(old_state)->colorkey_enable != val) &&
 207             dcrtc->variant->has_spu_adv_reg)
 208                 armada_reg_queue_mod(regs, idx, val, ADV_GRACOLORKEY |
 209                                      ADV_VIDCOLORKEY, LCD_SPU_ADV_REG);
 210 
 211         dcrtc->regs_idx += idx;
 212 }
 213 
 214 static void armada_drm_overlay_plane_atomic_disable(struct drm_plane *plane,
 215         struct drm_plane_state *old_state)
 216 {
 217         struct armada_crtc *dcrtc;
 218         struct armada_regs *regs;
 219         unsigned int idx = 0;
 220 
 221         DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
 222 
 223         if (!old_state->crtc)
 224                 return;
 225 
 226         DRM_DEBUG_KMS("[PLANE:%d:%s] was on [CRTC:%d:%s] with [FB:%d]\n",
 227                 plane->base.id, plane->name,
 228                 old_state->crtc->base.id, old_state->crtc->name,
 229                 old_state->fb->base.id);
 230 
 231         dcrtc = drm_to_armada_crtc(old_state->crtc);
 232         regs = dcrtc->regs + dcrtc->regs_idx;
 233 
 234         /* Disable plane and power down the YUV FIFOs */
 235         armada_reg_queue_mod(regs, idx, 0, CFG_DMA_ENA, LCD_SPU_DMA_CTRL0);
 236         armada_reg_queue_mod(regs, idx, CFG_PDWN16x66 | CFG_PDWN32x66, 0,
 237                              LCD_SPU_SRAM_PARA1);
 238 
 239         dcrtc->regs_idx += idx;
 240 }
 241 
 242 static const struct drm_plane_helper_funcs armada_overlay_plane_helper_funcs = {
 243         .prepare_fb     = armada_drm_plane_prepare_fb,
 244         .cleanup_fb     = armada_drm_plane_cleanup_fb,
 245         .atomic_check   = armada_drm_plane_atomic_check,
 246         .atomic_update  = armada_drm_overlay_plane_atomic_update,
 247         .atomic_disable = armada_drm_overlay_plane_atomic_disable,
 248 };
 249 
 250 static int
 251 armada_overlay_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
 252         struct drm_framebuffer *fb,
 253         int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
 254         uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
 255         struct drm_modeset_acquire_ctx *ctx)
 256 {
 257         struct drm_atomic_state *state;
 258         struct drm_plane_state *plane_state;
 259         int ret = 0;
 260 
 261         trace_armada_ovl_plane_update(plane, crtc, fb,
 262                                  crtc_x, crtc_y, crtc_w, crtc_h,
 263                                  src_x, src_y, src_w, src_h);
 264 
 265         state = drm_atomic_state_alloc(plane->dev);
 266         if (!state)
 267                 return -ENOMEM;
 268 
 269         state->acquire_ctx = ctx;
 270         plane_state = drm_atomic_get_plane_state(state, plane);
 271         if (IS_ERR(plane_state)) {
 272                 ret = PTR_ERR(plane_state);
 273                 goto fail;
 274         }
 275 
 276         ret = drm_atomic_set_crtc_for_plane(plane_state, crtc);
 277         if (ret != 0)
 278                 goto fail;
 279 
 280         drm_atomic_set_fb_for_plane(plane_state, fb);
 281         plane_state->crtc_x = crtc_x;
 282         plane_state->crtc_y = crtc_y;
 283         plane_state->crtc_h = crtc_h;
 284         plane_state->crtc_w = crtc_w;
 285         plane_state->src_x = src_x;
 286         plane_state->src_y = src_y;
 287         plane_state->src_h = src_h;
 288         plane_state->src_w = src_w;
 289 
 290         ret = drm_atomic_nonblocking_commit(state);
 291 fail:
 292         drm_atomic_state_put(state);
 293         return ret;
 294 }
 295 
 296 static void armada_ovl_plane_destroy(struct drm_plane *plane)
 297 {
 298         drm_plane_cleanup(plane);
 299         kfree(plane);
 300 }
 301 
 302 static void armada_overlay_reset(struct drm_plane *plane)
 303 {
 304         struct armada_overlay_state *state;
 305 
 306         if (plane->state)
 307                 __drm_atomic_helper_plane_destroy_state(plane->state);
 308         kfree(plane->state);
 309         plane->state = NULL;
 310 
 311         state = kzalloc(sizeof(*state), GFP_KERNEL);
 312         if (state) {
 313                 state->colorkey_yr = 0xfefefe00;
 314                 state->colorkey_ug = 0x01010100;
 315                 state->colorkey_vb = 0x01010100;
 316                 state->colorkey_mode = CFG_CKMODE(CKMODE_RGB) |
 317                                        CFG_ALPHAM_GRA | CFG_ALPHA(0);
 318                 state->colorkey_enable = ADV_GRACOLORKEY;
 319                 state->brightness = DEFAULT_BRIGHTNESS;
 320                 state->contrast = DEFAULT_CONTRAST;
 321                 state->saturation = DEFAULT_SATURATION;
 322                 __drm_atomic_helper_plane_reset(plane, &state->base.base);
 323                 state->base.base.color_encoding = DEFAULT_ENCODING;
 324                 state->base.base.color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
 325         }
 326 }
 327 
 328 struct drm_plane_state *
 329 armada_overlay_duplicate_state(struct drm_plane *plane)
 330 {
 331         struct armada_overlay_state *state;
 332 
 333         if (WARN_ON(!plane->state))
 334                 return NULL;
 335 
 336         state = kmemdup(plane->state, sizeof(*state), GFP_KERNEL);
 337         if (state)
 338                 __drm_atomic_helper_plane_duplicate_state(plane,
 339                                                           &state->base.base);
 340         return &state->base.base;
 341 }
 342 
 343 static int armada_overlay_set_property(struct drm_plane *plane,
 344         struct drm_plane_state *state, struct drm_property *property,
 345         uint64_t val)
 346 {
 347         struct armada_private *priv = plane->dev->dev_private;
 348 
 349 #define K2R(val) (((val) >> 0) & 0xff)
 350 #define K2G(val) (((val) >> 8) & 0xff)
 351 #define K2B(val) (((val) >> 16) & 0xff)
 352         if (property == priv->colorkey_prop) {
 353 #define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
 354                 drm_to_overlay_state(state)->colorkey_yr = CCC(K2R(val));
 355                 drm_to_overlay_state(state)->colorkey_ug = CCC(K2G(val));
 356                 drm_to_overlay_state(state)->colorkey_vb = CCC(K2B(val));
 357 #undef CCC
 358         } else if (property == priv->colorkey_min_prop) {
 359                 drm_to_overlay_state(state)->colorkey_yr &= ~0x00ff0000;
 360                 drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 16;
 361                 drm_to_overlay_state(state)->colorkey_ug &= ~0x00ff0000;
 362                 drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 16;
 363                 drm_to_overlay_state(state)->colorkey_vb &= ~0x00ff0000;
 364                 drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 16;
 365         } else if (property == priv->colorkey_max_prop) {
 366                 drm_to_overlay_state(state)->colorkey_yr &= ~0xff000000;
 367                 drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 24;
 368                 drm_to_overlay_state(state)->colorkey_ug &= ~0xff000000;
 369                 drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 24;
 370                 drm_to_overlay_state(state)->colorkey_vb &= ~0xff000000;
 371                 drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 24;
 372         } else if (property == priv->colorkey_val_prop) {
 373                 drm_to_overlay_state(state)->colorkey_yr &= ~0x0000ff00;
 374                 drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 8;
 375                 drm_to_overlay_state(state)->colorkey_ug &= ~0x0000ff00;
 376                 drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 8;
 377                 drm_to_overlay_state(state)->colorkey_vb &= ~0x0000ff00;
 378                 drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 8;
 379         } else if (property == priv->colorkey_alpha_prop) {
 380                 drm_to_overlay_state(state)->colorkey_yr &= ~0x000000ff;
 381                 drm_to_overlay_state(state)->colorkey_yr |= K2R(val);
 382                 drm_to_overlay_state(state)->colorkey_ug &= ~0x000000ff;
 383                 drm_to_overlay_state(state)->colorkey_ug |= K2G(val);
 384                 drm_to_overlay_state(state)->colorkey_vb &= ~0x000000ff;
 385                 drm_to_overlay_state(state)->colorkey_vb |= K2B(val);
 386         } else if (property == priv->colorkey_mode_prop) {
 387                 if (val == CKMODE_DISABLE) {
 388                         drm_to_overlay_state(state)->colorkey_mode =
 389                                 CFG_CKMODE(CKMODE_DISABLE) |
 390                                 CFG_ALPHAM_CFG | CFG_ALPHA(255);
 391                         drm_to_overlay_state(state)->colorkey_enable = 0;
 392                 } else {
 393                         drm_to_overlay_state(state)->colorkey_mode =
 394                                 CFG_CKMODE(val) |
 395                                 CFG_ALPHAM_GRA | CFG_ALPHA(0);
 396                         drm_to_overlay_state(state)->colorkey_enable =
 397                                 ADV_GRACOLORKEY;
 398                 }
 399         } else if (property == priv->brightness_prop) {
 400                 drm_to_overlay_state(state)->brightness = val - 256;
 401         } else if (property == priv->contrast_prop) {
 402                 drm_to_overlay_state(state)->contrast = val;
 403         } else if (property == priv->saturation_prop) {
 404                 drm_to_overlay_state(state)->saturation = val;
 405         } else {
 406                 return -EINVAL;
 407         }
 408         return 0;
 409 }
 410 
 411 static int armada_overlay_get_property(struct drm_plane *plane,
 412         const struct drm_plane_state *state, struct drm_property *property,
 413         uint64_t *val)
 414 {
 415         struct armada_private *priv = plane->dev->dev_private;
 416 
 417 #define C2K(c,s)        (((c) >> (s)) & 0xff)
 418 #define R2BGR(r,g,b,s)  (C2K(r,s) << 0 | C2K(g,s) << 8 | C2K(b,s) << 16)
 419         if (property == priv->colorkey_prop) {
 420                 /* Do best-efforts here for this property */
 421                 *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 422                              drm_to_overlay_state(state)->colorkey_ug,
 423                              drm_to_overlay_state(state)->colorkey_vb, 16);
 424                 /* If min != max, or min != val, error out */
 425                 if (*val != R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 426                                   drm_to_overlay_state(state)->colorkey_ug,
 427                                   drm_to_overlay_state(state)->colorkey_vb, 24) ||
 428                     *val != R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 429                                   drm_to_overlay_state(state)->colorkey_ug,
 430                                   drm_to_overlay_state(state)->colorkey_vb, 8))
 431                         return -EINVAL;
 432         } else if (property == priv->colorkey_min_prop) {
 433                 *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 434                              drm_to_overlay_state(state)->colorkey_ug,
 435                              drm_to_overlay_state(state)->colorkey_vb, 16);
 436         } else if (property == priv->colorkey_max_prop) {
 437                 *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 438                              drm_to_overlay_state(state)->colorkey_ug,
 439                              drm_to_overlay_state(state)->colorkey_vb, 24);
 440         } else if (property == priv->colorkey_val_prop) {
 441                 *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 442                              drm_to_overlay_state(state)->colorkey_ug,
 443                              drm_to_overlay_state(state)->colorkey_vb, 8);
 444         } else if (property == priv->colorkey_alpha_prop) {
 445                 *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
 446                              drm_to_overlay_state(state)->colorkey_ug,
 447                              drm_to_overlay_state(state)->colorkey_vb, 0);
 448         } else if (property == priv->colorkey_mode_prop) {
 449                 *val = (drm_to_overlay_state(state)->colorkey_mode &
 450                         CFG_CKMODE_MASK) >> ffs(CFG_CKMODE_MASK);
 451         } else if (property == priv->brightness_prop) {
 452                 *val = drm_to_overlay_state(state)->brightness + 256;
 453         } else if (property == priv->contrast_prop) {
 454                 *val = drm_to_overlay_state(state)->contrast;
 455         } else if (property == priv->saturation_prop) {
 456                 *val = drm_to_overlay_state(state)->saturation;
 457         } else {
 458                 return -EINVAL;
 459         }
 460         return 0;
 461 }
 462 
 463 static const struct drm_plane_funcs armada_ovl_plane_funcs = {
 464         .update_plane   = armada_overlay_plane_update,
 465         .disable_plane  = drm_atomic_helper_disable_plane,
 466         .destroy        = armada_ovl_plane_destroy,
 467         .reset          = armada_overlay_reset,
 468         .atomic_duplicate_state = armada_overlay_duplicate_state,
 469         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 470         .atomic_set_property = armada_overlay_set_property,
 471         .atomic_get_property = armada_overlay_get_property,
 472 };
 473 
 474 static const uint32_t armada_ovl_formats[] = {
 475         DRM_FORMAT_UYVY,
 476         DRM_FORMAT_YUYV,
 477         DRM_FORMAT_YUV420,
 478         DRM_FORMAT_YVU420,
 479         DRM_FORMAT_YUV422,
 480         DRM_FORMAT_YVU422,
 481         DRM_FORMAT_VYUY,
 482         DRM_FORMAT_YVYU,
 483         DRM_FORMAT_ARGB8888,
 484         DRM_FORMAT_ABGR8888,
 485         DRM_FORMAT_XRGB8888,
 486         DRM_FORMAT_XBGR8888,
 487         DRM_FORMAT_RGB888,
 488         DRM_FORMAT_BGR888,
 489         DRM_FORMAT_ARGB1555,
 490         DRM_FORMAT_ABGR1555,
 491         DRM_FORMAT_RGB565,
 492         DRM_FORMAT_BGR565,
 493 };
 494 
 495 static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 496         { CKMODE_DISABLE, "disabled" },
 497         { CKMODE_Y,       "Y component" },
 498         { CKMODE_U,       "U component" },
 499         { CKMODE_V,       "V component" },
 500         { CKMODE_RGB,     "RGB" },
 501         { CKMODE_R,       "R component" },
 502         { CKMODE_G,       "G component" },
 503         { CKMODE_B,       "B component" },
 504 };
 505 
 506 static int armada_overlay_create_properties(struct drm_device *dev)
 507 {
 508         struct armada_private *priv = dev->dev_private;
 509 
 510         if (priv->colorkey_prop)
 511                 return 0;
 512 
 513         priv->colorkey_prop = drm_property_create_range(dev, 0,
 514                                 "colorkey", 0, 0xffffff);
 515         priv->colorkey_min_prop = drm_property_create_range(dev, 0,
 516                                 "colorkey_min", 0, 0xffffff);
 517         priv->colorkey_max_prop = drm_property_create_range(dev, 0,
 518                                 "colorkey_max", 0, 0xffffff);
 519         priv->colorkey_val_prop = drm_property_create_range(dev, 0,
 520                                 "colorkey_val", 0, 0xffffff);
 521         priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
 522                                 "colorkey_alpha", 0, 0xffffff);
 523         priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
 524                                 "colorkey_mode",
 525                                 armada_drm_colorkey_enum_list,
 526                                 ARRAY_SIZE(armada_drm_colorkey_enum_list));
 527         priv->brightness_prop = drm_property_create_range(dev, 0,
 528                                 "brightness", 0, 256 + 255);
 529         priv->contrast_prop = drm_property_create_range(dev, 0,
 530                                 "contrast", 0, 0x7fff);
 531         priv->saturation_prop = drm_property_create_range(dev, 0,
 532                                 "saturation", 0, 0x7fff);
 533 
 534         if (!priv->colorkey_prop)
 535                 return -ENOMEM;
 536 
 537         return 0;
 538 }
 539 
 540 int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
 541 {
 542         struct armada_private *priv = dev->dev_private;
 543         struct drm_mode_object *mobj;
 544         struct drm_plane *overlay;
 545         int ret;
 546 
 547         ret = armada_overlay_create_properties(dev);
 548         if (ret)
 549                 return ret;
 550 
 551         overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
 552         if (!overlay)
 553                 return -ENOMEM;
 554 
 555         drm_plane_helper_add(overlay, &armada_overlay_plane_helper_funcs);
 556 
 557         ret = drm_universal_plane_init(dev, overlay, crtcs,
 558                                        &armada_ovl_plane_funcs,
 559                                        armada_ovl_formats,
 560                                        ARRAY_SIZE(armada_ovl_formats),
 561                                        NULL,
 562                                        DRM_PLANE_TYPE_OVERLAY, NULL);
 563         if (ret) {
 564                 kfree(overlay);
 565                 return ret;
 566         }
 567 
 568         mobj = &overlay->base;
 569         drm_object_attach_property(mobj, priv->colorkey_prop,
 570                                    0x0101fe);
 571         drm_object_attach_property(mobj, priv->colorkey_min_prop,
 572                                    0x0101fe);
 573         drm_object_attach_property(mobj, priv->colorkey_max_prop,
 574                                    0x0101fe);
 575         drm_object_attach_property(mobj, priv->colorkey_val_prop,
 576                                    0x0101fe);
 577         drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
 578                                    0x000000);
 579         drm_object_attach_property(mobj, priv->colorkey_mode_prop,
 580                                    CKMODE_RGB);
 581         drm_object_attach_property(mobj, priv->brightness_prop,
 582                                    256 + DEFAULT_BRIGHTNESS);
 583         drm_object_attach_property(mobj, priv->contrast_prop,
 584                                    DEFAULT_CONTRAST);
 585         drm_object_attach_property(mobj, priv->saturation_prop,
 586                                    DEFAULT_SATURATION);
 587 
 588         ret = drm_plane_create_color_properties(overlay,
 589                                                 BIT(DRM_COLOR_YCBCR_BT601) |
 590                                                 BIT(DRM_COLOR_YCBCR_BT709),
 591                                                 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
 592                                                 DEFAULT_ENCODING,
 593                                                 DRM_COLOR_YCBCR_LIMITED_RANGE);
 594 
 595         return ret;
 596 }

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