drivers/media/platform/davinci/vpbe_osd.c

   1 /*
   2  * Copyright (C) 2007-2010 Texas Instruments Inc
   3  * Copyright (C) 2007 MontaVista Software, Inc.
   4  *
   5  * Andy Lowe (alowe@mvista.com), MontaVista Software
   6  * - Initial version
   7  * Murali Karicheri (mkaricheri@gmail.com), Texas Instruments Ltd.
   8  * - ported to sub device interface
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation version 2.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  */
  20 #include <linux/module.h>
  21 #include <linux/mod_devicetable.h>
  22 #include <linux/kernel.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/clk.h>
  26 #include <linux/slab.h>
  27
  28 #ifdef CONFIG_ARCH_DAVINCI
  29 #include <mach/cputype.h>
  30 #include <mach/hardware.h>
  31 #endif
  32
  33 #include <media/davinci/vpss.h>
  34 #include <media/v4l2-device.h>
  35 #include <media/davinci/vpbe_types.h>
  36 #include <media/davinci/vpbe_osd.h>
  37
  38 #include <linux/io.h>
  39 #include "vpbe_osd_regs.h"
  40
  41 #define MODULE_NAME     "davinci-vpbe-osd"
  42
  43 static const struct platform_device_id vpbe_osd_devtype[] = {
  44         {
  45                 .name = DM644X_VPBE_OSD_SUBDEV_NAME,
  46                 .driver_data = VPBE_VERSION_1,
  47         }, {
  48                 .name = DM365_VPBE_OSD_SUBDEV_NAME,
  49                 .driver_data = VPBE_VERSION_2,
  50         }, {
  51                 .name = DM355_VPBE_OSD_SUBDEV_NAME,
  52                 .driver_data = VPBE_VERSION_3,
  53         },
  54         {
  55                 /* sentinel */
  56         }
  57 };
  58
  59 MODULE_DEVICE_TABLE(platform, vpbe_osd_devtype);
  60
  61 /* register access routines */
  62 static inline u32 osd_read(struct osd_state *sd, u32 offset)
  63 {
  64         struct osd_state *osd = sd;
  65
  66         return readl(osd->osd_base + offset);
  67 }
  68
  69 static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
  70 {
  71         struct osd_state *osd = sd;
  72
  73         writel(val, osd->osd_base + offset);
  74
  75         return val;
  76 }
  77
  78 static inline u32 osd_set(struct osd_state *sd, u32 mask, u32 offset)
  79 {
  80         struct osd_state *osd = sd;
  81
  82         void __iomem *addr = osd->osd_base + offset;
  83         u32 val = readl(addr) | mask;
  84
  85         writel(val, addr);
  86
  87         return val;
  88 }
  89
  90 static inline u32 osd_clear(struct osd_state *sd, u32 mask, u32 offset)
  91 {
  92         struct osd_state *osd = sd;
  93
  94         void __iomem *addr = osd->osd_base + offset;
  95         u32 val = readl(addr) & ~mask;
  96
  97         writel(val, addr);
  98
  99         return val;
 100 }
 101
 102 static inline u32 osd_modify(struct osd_state *sd, u32 mask, u32 val,
 103                                  u32 offset)
 104 {
 105         struct osd_state *osd = sd;
 106
 107         void __iomem *addr = osd->osd_base + offset;
 108         u32 new_val = (readl(addr) & ~mask) | (val & mask);
 109
 110         writel(new_val, addr);
 111
 112         return new_val;
 113 }
 114
 115 /* define some macros for layer and pixfmt classification */
 116 #define is_osd_win(layer) (((layer) == WIN_OSD0) || ((layer) == WIN_OSD1))
 117 #define is_vid_win(layer) (((layer) == WIN_VID0) || ((layer) == WIN_VID1))
 118 #define is_rgb_pixfmt(pixfmt) \
 119         (((pixfmt) == PIXFMT_RGB565) || ((pixfmt) == PIXFMT_RGB888))
 120 #define is_yc_pixfmt(pixfmt) \
 121         (((pixfmt) == PIXFMT_YCBCRI) || ((pixfmt) == PIXFMT_YCRCBI) || \
 122         ((pixfmt) == PIXFMT_NV12))
 123 #define MAX_WIN_SIZE OSD_VIDWIN0XP_V0X
 124 #define MAX_LINE_LENGTH (OSD_VIDWIN0OFST_V0LO << 5)
 125
 126 /**
 127  * _osd_dm6446_vid0_pingpong() - field inversion fix for DM6446
 128  * @sd: ptr to struct osd_state
 129  * @field_inversion: inversion flag
 130  * @fb_base_phys: frame buffer address
 131  * @lconfig: ptr to layer config
 132  *
 133  * This routine implements a workaround for the field signal inversion silicon
 134  * erratum described in Advisory 1.3.8 for the DM6446.  The fb_base_phys and
 135  * lconfig parameters apply to the vid0 window.  This routine should be called
 136  * whenever the vid0 layer configuration or start address is modified, or when
 137  * the OSD field inversion setting is modified.
 138  * Returns: 1 if the ping-pong buffers need to be toggled in the vsync isr, or
 139  *          0 otherwise
 140  */
 141 static int _osd_dm6446_vid0_pingpong(struct osd_state *sd,
 142                                      int field_inversion,
 143                                      unsigned long fb_base_phys,
 144                                      const struct osd_layer_config *lconfig)
 145 {
 146         struct osd_platform_data *pdata;
 147
 148         pdata = (struct osd_platform_data *)sd->dev->platform_data;
 149         if (pdata != NULL && pdata->field_inv_wa_enable) {
 150
 151                 if (!field_inversion || !lconfig->interlaced) {
 152                         osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
 153                         osd_write(sd, fb_base_phys & ~0x1F, OSD_PPVWIN0ADR);
 154                         osd_modify(sd, OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, 0,
 155                                    OSD_MISCCTL);
 156                         return 0;
 157                 } else {
 158                         unsigned miscctl = OSD_MISCCTL_PPRV;
 159
 160                         osd_write(sd,
 161                                 (fb_base_phys & ~0x1F) - lconfig->line_length,
 162                                 OSD_VIDWIN0ADR);
 163                         osd_write(sd,
 164                                 (fb_base_phys & ~0x1F) + lconfig->line_length,
 165                                 OSD_PPVWIN0ADR);
 166                         osd_modify(sd,
 167                                 OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, miscctl,
 168                                 OSD_MISCCTL);
 169
 170                         return 1;
 171                 }
 172         }
 173
 174         return 0;
 175 }
 176
 177 static void _osd_set_field_inversion(struct osd_state *sd, int enable)
 178 {
 179         unsigned fsinv = 0;
 180
 181         if (enable)
 182                 fsinv = OSD_MODE_FSINV;
 183
 184         osd_modify(sd, OSD_MODE_FSINV, fsinv, OSD_MODE);
 185 }
 186
 187 static void _osd_set_blink_attribute(struct osd_state *sd, int enable,
 188                                      enum osd_blink_interval blink)
 189 {
 190         u32 osdatrmd = 0;
 191
 192         if (enable) {
 193                 osdatrmd |= OSD_OSDATRMD_BLNK;
 194                 osdatrmd |= blink << OSD_OSDATRMD_BLNKINT_SHIFT;
 195         }
 196         /* caller must ensure that OSD1 is configured in attribute mode */
 197         osd_modify(sd, OSD_OSDATRMD_BLNKINT | OSD_OSDATRMD_BLNK, osdatrmd,
 198                   OSD_OSDATRMD);
 199 }
 200
 201 static void _osd_set_rom_clut(struct osd_state *sd,
 202                               enum osd_rom_clut rom_clut)
 203 {
 204         if (rom_clut == ROM_CLUT0)
 205                 osd_clear(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
 206         else
 207                 osd_set(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
 208 }
 209
 210 static void _osd_set_palette_map(struct osd_state *sd,
 211                                  enum osd_win_layer osdwin,
 212                                  unsigned char pixel_value,
 213                                  unsigned char clut_index,
 214                                  enum osd_pix_format pixfmt)
 215 {
 216         static const int map_2bpp[] = { 0, 5, 10, 15 };
 217         static const int map_1bpp[] = { 0, 15 };
 218         int bmp_offset;
 219         int bmp_shift;
 220         int bmp_mask;
 221         int bmp_reg;
 222
 223         switch (pixfmt) {
 224         case PIXFMT_1BPP:
 225                 bmp_reg = map_1bpp[pixel_value & 0x1];
 226                 break;
 227         case PIXFMT_2BPP:
 228                 bmp_reg = map_2bpp[pixel_value & 0x3];
 229                 break;
 230         case PIXFMT_4BPP:
 231                 bmp_reg = pixel_value & 0xf;
 232                 break;
 233         default:
 234                 return;
 235         }
 236
 237         switch (osdwin) {
 238         case OSDWIN_OSD0:
 239                 bmp_offset = OSD_W0BMP01 + (bmp_reg >> 1) * sizeof(u32);
 240                 break;
 241         case OSDWIN_OSD1:
 242                 bmp_offset = OSD_W1BMP01 + (bmp_reg >> 1) * sizeof(u32);
 243                 break;
 244         default:
 245                 return;
 246         }
 247
 248         if (bmp_reg & 1) {
 249                 bmp_shift = 8;
 250                 bmp_mask = 0xff << 8;
 251         } else {
 252                 bmp_shift = 0;
 253                 bmp_mask = 0xff;
 254         }
 255
 256         osd_modify(sd, bmp_mask, clut_index << bmp_shift, bmp_offset);
 257 }
 258
 259 static void _osd_set_rec601_attenuation(struct osd_state *sd,
 260                                         enum osd_win_layer osdwin, int enable)
 261 {
 262         switch (osdwin) {
 263         case OSDWIN_OSD0:
 264                 osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
 265                           enable ? OSD_OSDWIN0MD_ATN0E : 0,
 266                           OSD_OSDWIN0MD);
 267                 if (sd->vpbe_type == VPBE_VERSION_1)
 268                         osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
 269                                   enable ? OSD_OSDWIN0MD_ATN0E : 0,
 270                                   OSD_OSDWIN0MD);
 271                 else if ((sd->vpbe_type == VPBE_VERSION_3) ||
 272                            (sd->vpbe_type == VPBE_VERSION_2))
 273                         osd_modify(sd, OSD_EXTMODE_ATNOSD0EN,
 274                                   enable ? OSD_EXTMODE_ATNOSD0EN : 0,
 275                                   OSD_EXTMODE);
 276                 break;
 277         case OSDWIN_OSD1:
 278                 osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
 279                           enable ? OSD_OSDWIN1MD_ATN1E : 0,
 280                           OSD_OSDWIN1MD);
 281                 if (sd->vpbe_type == VPBE_VERSION_1)
 282                         osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
 283                                   enable ? OSD_OSDWIN1MD_ATN1E : 0,
 284                                   OSD_OSDWIN1MD);
 285                 else if ((sd->vpbe_type == VPBE_VERSION_3) ||
 286                            (sd->vpbe_type == VPBE_VERSION_2))
 287                         osd_modify(sd, OSD_EXTMODE_ATNOSD1EN,
 288                                   enable ? OSD_EXTMODE_ATNOSD1EN : 0,
 289                                   OSD_EXTMODE);
 290                 break;
 291         }
 292 }
 293
 294 static void _osd_set_blending_factor(struct osd_state *sd,
 295                                      enum osd_win_layer osdwin,
 296                                      enum osd_blending_factor blend)
 297 {
 298         switch (osdwin) {
 299         case OSDWIN_OSD0:
 300                 osd_modify(sd, OSD_OSDWIN0MD_BLND0,
 301                           blend << OSD_OSDWIN0MD_BLND0_SHIFT, OSD_OSDWIN0MD);
 302                 break;
 303         case OSDWIN_OSD1:
 304                 osd_modify(sd, OSD_OSDWIN1MD_BLND1,
 305                           blend << OSD_OSDWIN1MD_BLND1_SHIFT, OSD_OSDWIN1MD);
 306                 break;
 307         }
 308 }
 309
 310 static void _osd_enable_rgb888_pixblend(struct osd_state *sd,
 311                                         enum osd_win_layer osdwin)
 312 {
 313
 314         osd_modify(sd, OSD_MISCCTL_BLDSEL, 0, OSD_MISCCTL);
 315         switch (osdwin) {
 316         case OSDWIN_OSD0:
 317                 osd_modify(sd, OSD_EXTMODE_OSD0BLDCHR,
 318                           OSD_EXTMODE_OSD0BLDCHR, OSD_EXTMODE);
 319                 break;
 320         case OSDWIN_OSD1:
 321                 osd_modify(sd, OSD_EXTMODE_OSD1BLDCHR,
 322                           OSD_EXTMODE_OSD1BLDCHR, OSD_EXTMODE);
 323                 break;
 324         }
 325 }
 326
 327 static void _osd_enable_color_key(struct osd_state *sd,
 328                                   enum osd_win_layer osdwin,
 329                                   unsigned colorkey,
 330                                   enum osd_pix_format pixfmt)
 331 {
 332         switch (pixfmt) {
 333         case PIXFMT_1BPP:
 334         case PIXFMT_2BPP:
 335         case PIXFMT_4BPP:
 336         case PIXFMT_8BPP:
 337                 if (sd->vpbe_type == VPBE_VERSION_3) {
 338                         switch (osdwin) {
 339                         case OSDWIN_OSD0:
 340                                 osd_modify(sd, OSD_TRANSPBMPIDX_BMP0,
 341                                           colorkey <<
 342                                           OSD_TRANSPBMPIDX_BMP0_SHIFT,
 343                                           OSD_TRANSPBMPIDX);
 344                                 break;
 345                         case OSDWIN_OSD1:
 346                                 osd_modify(sd, OSD_TRANSPBMPIDX_BMP1,
 347                                           colorkey <<
 348                                           OSD_TRANSPBMPIDX_BMP1_SHIFT,
 349                                           OSD_TRANSPBMPIDX);
 350                                 break;
 351                         }
 352                 }
 353                 break;
 354         case PIXFMT_RGB565:
 355                 if (sd->vpbe_type == VPBE_VERSION_1)
 356                         osd_write(sd, colorkey & OSD_TRANSPVAL_RGBTRANS,
 357                                   OSD_TRANSPVAL);
 358                 else if (sd->vpbe_type == VPBE_VERSION_3)
 359                         osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
 360                                   OSD_TRANSPVALL);
 361                 break;
 362         case PIXFMT_YCBCRI:
 363         case PIXFMT_YCRCBI:
 364                 if (sd->vpbe_type == VPBE_VERSION_3)
 365                         osd_modify(sd, OSD_TRANSPVALU_Y, colorkey,
 366                                    OSD_TRANSPVALU);
 367                 break;
 368         case PIXFMT_RGB888:
 369                 if (sd->vpbe_type == VPBE_VERSION_3) {
 370                         osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
 371                                   OSD_TRANSPVALL);
 372                         osd_modify(sd, OSD_TRANSPVALU_RGBU, colorkey >> 16,
 373                                   OSD_TRANSPVALU);
 374                 }
 375                 break;
 376         default:
 377                 break;
 378         }
 379
 380         switch (osdwin) {
 381         case OSDWIN_OSD0:
 382                 osd_set(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
 383                 break;
 384         case OSDWIN_OSD1:
 385                 osd_set(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
 386                 break;
 387         }
 388 }
 389
 390 static void _osd_disable_color_key(struct osd_state *sd,
 391                                    enum osd_win_layer osdwin)
 392 {
 393         switch (osdwin) {
 394         case OSDWIN_OSD0:
 395                 osd_clear(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
 396                 break;
 397         case OSDWIN_OSD1:
 398                 osd_clear(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
 399                 break;
 400         }
 401 }
 402
 403 static void _osd_set_osd_clut(struct osd_state *sd,
 404                               enum osd_win_layer osdwin,
 405                               enum osd_clut clut)
 406 {
 407         u32 winmd = 0;
 408
 409         switch (osdwin) {
 410         case OSDWIN_OSD0:
 411                 if (clut == RAM_CLUT)
 412                         winmd |= OSD_OSDWIN0MD_CLUTS0;
 413                 osd_modify(sd, OSD_OSDWIN0MD_CLUTS0, winmd, OSD_OSDWIN0MD);
 414                 break;
 415         case OSDWIN_OSD1:
 416                 if (clut == RAM_CLUT)
 417                         winmd |= OSD_OSDWIN1MD_CLUTS1;
 418                 osd_modify(sd, OSD_OSDWIN1MD_CLUTS1, winmd, OSD_OSDWIN1MD);
 419                 break;
 420         }
 421 }
 422
 423 static void _osd_set_zoom(struct osd_state *sd, enum osd_layer layer,
 424                           enum osd_zoom_factor h_zoom,
 425                           enum osd_zoom_factor v_zoom)
 426 {
 427         u32 winmd = 0;
 428
 429         switch (layer) {
 430         case WIN_OSD0:
 431                 winmd |= (h_zoom << OSD_OSDWIN0MD_OHZ0_SHIFT);
 432                 winmd |= (v_zoom << OSD_OSDWIN0MD_OVZ0_SHIFT);
 433                 osd_modify(sd, OSD_OSDWIN0MD_OHZ0 | OSD_OSDWIN0MD_OVZ0, winmd,
 434                           OSD_OSDWIN0MD);
 435                 break;
 436         case WIN_VID0:
 437                 winmd |= (h_zoom << OSD_VIDWINMD_VHZ0_SHIFT);
 438                 winmd |= (v_zoom << OSD_VIDWINMD_VVZ0_SHIFT);
 439                 osd_modify(sd, OSD_VIDWINMD_VHZ0 | OSD_VIDWINMD_VVZ0, winmd,
 440                           OSD_VIDWINMD);
 441                 break;
 442         case WIN_OSD1:
 443                 winmd |= (h_zoom << OSD_OSDWIN1MD_OHZ1_SHIFT);
 444                 winmd |= (v_zoom << OSD_OSDWIN1MD_OVZ1_SHIFT);
 445                 osd_modify(sd, OSD_OSDWIN1MD_OHZ1 | OSD_OSDWIN1MD_OVZ1, winmd,
 446                           OSD_OSDWIN1MD);
 447                 break;
 448         case WIN_VID1:
 449                 winmd |= (h_zoom << OSD_VIDWINMD_VHZ1_SHIFT);
 450                 winmd |= (v_zoom << OSD_VIDWINMD_VVZ1_SHIFT);
 451                 osd_modify(sd, OSD_VIDWINMD_VHZ1 | OSD_VIDWINMD_VVZ1, winmd,
 452                           OSD_VIDWINMD);
 453                 break;
 454         }
 455 }
 456
 457 static void _osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
 458 {
 459         switch (layer) {
 460         case WIN_OSD0:
 461                 osd_clear(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
 462                 break;
 463         case WIN_VID0:
 464                 osd_clear(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
 465                 break;
 466         case WIN_OSD1:
 467                 /* disable attribute mode as well as disabling the window */
 468                 osd_clear(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
 469                           OSD_OSDWIN1MD);
 470                 break;
 471         case WIN_VID1:
 472                 osd_clear(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
 473                 break;
 474         }
 475 }
 476
 477 static void osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
 478 {
 479         struct osd_state *osd = sd;
 480         struct osd_window_state *win = &osd->win[layer];
 481         unsigned long flags;
 482
 483         spin_lock_irqsave(&osd->lock, flags);
 484
 485         if (!win->is_enabled) {
 486                 spin_unlock_irqrestore(&osd->lock, flags);
 487                 return;
 488         }
 489         win->is_enabled = 0;
 490
 491         _osd_disable_layer(sd, layer);
 492
 493         spin_unlock_irqrestore(&osd->lock, flags);
 494 }
 495
 496 static void _osd_enable_attribute_mode(struct osd_state *sd)
 497 {
 498         /* enable attribute mode for OSD1 */
 499         osd_set(sd, OSD_OSDWIN1MD_OASW, OSD_OSDWIN1MD);
 500 }
 501
 502 static void _osd_enable_layer(struct osd_state *sd, enum osd_layer layer)
 503 {
 504         switch (layer) {
 505         case WIN_OSD0:
 506                 osd_set(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
 507                 break;
 508         case WIN_VID0:
 509                 osd_set(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
 510                 break;
 511         case WIN_OSD1:
 512                 /* enable OSD1 and disable attribute mode */
 513                 osd_modify(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
 514                           OSD_OSDWIN1MD_OACT1, OSD_OSDWIN1MD);
 515                 break;
 516         case WIN_VID1:
 517                 osd_set(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
 518                 break;
 519         }
 520 }
 521
 522 static int osd_enable_layer(struct osd_state *sd, enum osd_layer layer,
 523                             int otherwin)
 524 {
 525         struct osd_state *osd = sd;
 526         struct osd_window_state *win = &osd->win[layer];
 527         struct osd_layer_config *cfg = &win->lconfig;
 528         unsigned long flags;
 529
 530         spin_lock_irqsave(&osd->lock, flags);
 531
 532         /*
 533          * use otherwin flag to know this is the other vid window
 534          * in YUV420 mode, if is, skip this check
 535          */
 536         if (!otherwin && (!win->is_allocated ||
 537                         !win->fb_base_phys ||
 538                         !cfg->line_length ||
 539                         !cfg->xsize ||
 540                         !cfg->ysize)) {
 541                 spin_unlock_irqrestore(&osd->lock, flags);
 542                 return -1;
 543         }
 544
 545         if (win->is_enabled) {
 546                 spin_unlock_irqrestore(&osd->lock, flags);
 547                 return 0;
 548         }
 549         win->is_enabled = 1;
 550
 551         if (cfg->pixfmt != PIXFMT_OSD_ATTR)
 552                 _osd_enable_layer(sd, layer);
 553         else {
 554                 _osd_enable_attribute_mode(sd);
 555                 _osd_set_blink_attribute(sd, osd->is_blinking, osd->blink);
 556         }
 557
 558         spin_unlock_irqrestore(&osd->lock, flags);
 559
 560         return 0;
 561 }
 562
 563 #define OSD_SRC_ADDR_HIGH4      0x7800000
 564 #define OSD_SRC_ADDR_HIGH7      0x7F0000
 565 #define OSD_SRCADD_OFSET_SFT    23
 566 #define OSD_SRCADD_ADD_SFT      16
 567 #define OSD_WINADL_MASK         0xFFFF
 568 #define OSD_WINOFST_MASK        0x1000
 569 #define VPBE_REG_BASE           0x80000000
 570
 571 static void _osd_start_layer(struct osd_state *sd, enum osd_layer layer,
 572                              unsigned long fb_base_phys,
 573                              unsigned long cbcr_ofst)
 574 {
 575
 576         if (sd->vpbe_type == VPBE_VERSION_1) {
 577                 switch (layer) {
 578                 case WIN_OSD0:
 579                         osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN0ADR);
 580                         break;
 581                 case WIN_VID0:
 582                         osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
 583                         break;
 584                 case WIN_OSD1:
 585                         osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN1ADR);
 586                         break;
 587                 case WIN_VID1:
 588                         osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN1ADR);
 589                         break;
 590               }
 591         } else if (sd->vpbe_type == VPBE_VERSION_3) {
 592                 unsigned long fb_offset_32 =
 593                     (fb_base_phys - VPBE_REG_BASE) >> 5;
 594
 595                 switch (layer) {
 596                 case WIN_OSD0:
 597                         osd_modify(sd, OSD_OSDWINADH_O0AH,
 598                                   fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 599                                                    OSD_OSDWINADH_O0AH_SHIFT),
 600                                   OSD_OSDWINADH);
 601                         osd_write(sd, fb_offset_32 & OSD_OSDWIN0ADL_O0AL,
 602                                   OSD_OSDWIN0ADL);
 603                         break;
 604                 case WIN_VID0:
 605                         osd_modify(sd, OSD_VIDWINADH_V0AH,
 606                                   fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 607                                                    OSD_VIDWINADH_V0AH_SHIFT),
 608                                   OSD_VIDWINADH);
 609                         osd_write(sd, fb_offset_32 & OSD_VIDWIN0ADL_V0AL,
 610                                   OSD_VIDWIN0ADL);
 611                         break;
 612                 case WIN_OSD1:
 613                         osd_modify(sd, OSD_OSDWINADH_O1AH,
 614                                   fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 615                                                    OSD_OSDWINADH_O1AH_SHIFT),
 616                                   OSD_OSDWINADH);
 617                         osd_write(sd, fb_offset_32 & OSD_OSDWIN1ADL_O1AL,
 618                                   OSD_OSDWIN1ADL);
 619                         break;
 620                 case WIN_VID1:
 621                         osd_modify(sd, OSD_VIDWINADH_V1AH,
 622                                   fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 623                                                    OSD_VIDWINADH_V1AH_SHIFT),
 624                                   OSD_VIDWINADH);
 625                         osd_write(sd, fb_offset_32 & OSD_VIDWIN1ADL_V1AL,
 626                                   OSD_VIDWIN1ADL);
 627                         break;
 628                 }
 629         } else if (sd->vpbe_type == VPBE_VERSION_2) {
 630                 struct osd_window_state *win = &sd->win[layer];
 631                 unsigned long fb_offset_32, cbcr_offset_32;
 632
 633                 fb_offset_32 = fb_base_phys - VPBE_REG_BASE;
 634                 if (cbcr_ofst)
 635                         cbcr_offset_32 = cbcr_ofst;
 636                 else
 637                         cbcr_offset_32 = win->lconfig.line_length *
 638                                          win->lconfig.ysize;
 639                 cbcr_offset_32 += fb_offset_32;
 640                 fb_offset_32 = fb_offset_32 >> 5;
 641                 cbcr_offset_32 = cbcr_offset_32 >> 5;
 642                 /*
 643                  * DM365: start address is 27-bit long address b26 - b23 are
 644                  * in offset register b12 - b9, and * bit 26 has to be '1'
 645                  */
 646                 if (win->lconfig.pixfmt == PIXFMT_NV12) {
 647                         switch (layer) {
 648                         case WIN_VID0:
 649                         case WIN_VID1:
 650                                 /* Y is in VID0 */
 651                                 osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
 652                                          ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 653                                          (OSD_SRCADD_OFSET_SFT -
 654                                          OSD_WINOFST_AH_SHIFT)) |
 655                                          OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
 656                                 osd_modify(sd, OSD_VIDWINADH_V0AH,
 657                                           (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 658                                           (OSD_SRCADD_ADD_SFT -
 659                                           OSD_VIDWINADH_V0AH_SHIFT),
 660                                            OSD_VIDWINADH);
 661                                 osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 662                                           OSD_VIDWIN0ADL);
 663                                 /* CbCr is in VID1 */
 664                                 osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
 665                                          ((cbcr_offset_32 &
 666                                          OSD_SRC_ADDR_HIGH4) >>
 667                                          (OSD_SRCADD_OFSET_SFT -
 668                                          OSD_WINOFST_AH_SHIFT)) |
 669                                          OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
 670                                 osd_modify(sd, OSD_VIDWINADH_V1AH,
 671                                           (cbcr_offset_32 &
 672                                           OSD_SRC_ADDR_HIGH7) >>
 673                                           (OSD_SRCADD_ADD_SFT -
 674                                           OSD_VIDWINADH_V1AH_SHIFT),
 675                                           OSD_VIDWINADH);
 676                                 osd_write(sd, cbcr_offset_32 & OSD_WINADL_MASK,
 677                                           OSD_VIDWIN1ADL);
 678                                 break;
 679                         default:
 680                                 break;
 681                         }
 682                 }
 683
 684                 switch (layer) {
 685                 case WIN_OSD0:
 686                         osd_modify(sd, OSD_OSDWIN0OFST_O0AH,
 687                                  ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 688                                  (OSD_SRCADD_OFSET_SFT -
 689                                  OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
 690                                   OSD_OSDWIN0OFST);
 691                         osd_modify(sd, OSD_OSDWINADH_O0AH,
 692                                  (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 693                                  (OSD_SRCADD_ADD_SFT -
 694                                  OSD_OSDWINADH_O0AH_SHIFT), OSD_OSDWINADH);
 695                         osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 696                                         OSD_OSDWIN0ADL);
 697                         break;
 698                 case WIN_VID0:
 699                         if (win->lconfig.pixfmt != PIXFMT_NV12) {
 700                                 osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
 701                                          ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 702                                          (OSD_SRCADD_OFSET_SFT -
 703                                          OSD_WINOFST_AH_SHIFT)) |
 704                                          OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
 705                                 osd_modify(sd, OSD_VIDWINADH_V0AH,
 706                                           (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 707                                           (OSD_SRCADD_ADD_SFT -
 708                                           OSD_VIDWINADH_V0AH_SHIFT),
 709                                           OSD_VIDWINADH);
 710                                 osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 711                                           OSD_VIDWIN0ADL);
 712                         }
 713                         break;
 714                 case WIN_OSD1:
 715                         osd_modify(sd, OSD_OSDWIN1OFST_O1AH,
 716                                  ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 717                                  (OSD_SRCADD_OFSET_SFT -
 718                                  OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
 719                                   OSD_OSDWIN1OFST);
 720                         osd_modify(sd, OSD_OSDWINADH_O1AH,
 721                                   (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 722                                   (OSD_SRCADD_ADD_SFT -
 723                                   OSD_OSDWINADH_O1AH_SHIFT),
 724                                   OSD_OSDWINADH);
 725                         osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 726                                         OSD_OSDWIN1ADL);
 727                         break;
 728                 case WIN_VID1:
 729                         if (win->lconfig.pixfmt != PIXFMT_NV12) {
 730                                 osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
 731                                          ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 732                                          (OSD_SRCADD_OFSET_SFT -
 733                                          OSD_WINOFST_AH_SHIFT)) |
 734                                          OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
 735                                 osd_modify(sd, OSD_VIDWINADH_V1AH,
 736                                           (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 737                                           (OSD_SRCADD_ADD_SFT -
 738                                           OSD_VIDWINADH_V1AH_SHIFT),
 739                                           OSD_VIDWINADH);
 740                                 osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 741                                           OSD_VIDWIN1ADL);
 742                         }
 743                         break;
 744                 }
 745         }
 746 }
 747
 748 static void osd_start_layer(struct osd_state *sd, enum osd_layer layer,
 749                             unsigned long fb_base_phys,
 750                             unsigned long cbcr_ofst)
 751 {
 752         struct osd_state *osd = sd;
 753         struct osd_window_state *win = &osd->win[layer];
 754         struct osd_layer_config *cfg = &win->lconfig;
 755         unsigned long flags;
 756
 757         spin_lock_irqsave(&osd->lock, flags);
 758
 759         win->fb_base_phys = fb_base_phys & ~0x1F;
 760         _osd_start_layer(sd, layer, fb_base_phys, cbcr_ofst);
 761
 762         if (layer == WIN_VID0) {
 763                 osd->pingpong =
 764                     _osd_dm6446_vid0_pingpong(sd, osd->field_inversion,
 765                                                        win->fb_base_phys,
 766                                                        cfg);
 767         }
 768
 769         spin_unlock_irqrestore(&osd->lock, flags);
 770 }
 771
 772 static void osd_get_layer_config(struct osd_state *sd, enum osd_layer layer,
 773                                  struct osd_layer_config *lconfig)
 774 {
 775         struct osd_state *osd = sd;
 776         struct osd_window_state *win = &osd->win[layer];
 777         unsigned long flags;
 778
 779         spin_lock_irqsave(&osd->lock, flags);
 780
 781         *lconfig = win->lconfig;
 782
 783         spin_unlock_irqrestore(&osd->lock, flags);
 784 }
 785
 786 /**
 787  * try_layer_config() - Try a specific configuration for the layer
 788  * @sd: ptr to struct osd_state
 789  * @layer: layer to configure
 790  * @lconfig: layer configuration to try
 791  *
 792  * If the requested lconfig is completely rejected and the value of lconfig on
 793  * exit is the current lconfig, then try_layer_config() returns 1.  Otherwise,
 794  * try_layer_config() returns 0.  A return value of 0 does not necessarily mean
 795  * that the value of lconfig on exit is identical to the value of lconfig on
 796  * entry, but merely that it represents a change from the current lconfig.
 797  */
 798 static int try_layer_config(struct osd_state *sd, enum osd_layer layer,
 799                             struct osd_layer_config *lconfig)
 800 {
 801         struct osd_state *osd = sd;
 802         struct osd_window_state *win = &osd->win[layer];
 803         int bad_config = 0;
 804
 805         /* verify that the pixel format is compatible with the layer */
 806         switch (lconfig->pixfmt) {
 807         case PIXFMT_1BPP:
 808         case PIXFMT_2BPP:
 809         case PIXFMT_4BPP:
 810         case PIXFMT_8BPP:
 811         case PIXFMT_RGB565:
 812                 if (osd->vpbe_type == VPBE_VERSION_1)
 813                         bad_config = !is_vid_win(layer);
 814                 break;
 815         case PIXFMT_YCBCRI:
 816         case PIXFMT_YCRCBI:
 817                 bad_config = !is_vid_win(layer);
 818                 break;
 819         case PIXFMT_RGB888:
 820                 if (osd->vpbe_type == VPBE_VERSION_1)
 821                         bad_config = !is_vid_win(layer);
 822                 else if ((osd->vpbe_type == VPBE_VERSION_3) ||
 823                          (osd->vpbe_type == VPBE_VERSION_2))
 824                         bad_config = !is_osd_win(layer);
 825                 break;
 826         case PIXFMT_NV12:
 827                 if (osd->vpbe_type != VPBE_VERSION_2)
 828                         bad_config = 1;
 829                 else
 830                         bad_config = is_osd_win(layer);
 831                 break;
 832         case PIXFMT_OSD_ATTR:
 833                 bad_config = (layer != WIN_OSD1);
 834                 break;
 835         default:
 836                 bad_config = 1;
 837                 break;
 838         }
 839         if (bad_config) {
 840                 /*
 841                  * The requested pixel format is incompatible with the layer,
 842                  * so keep the current layer configuration.
 843                  */
 844                 *lconfig = win->lconfig;
 845                 return bad_config;
 846         }
 847
 848         /* DM6446: */
 849         /* only one OSD window at a time can use RGB pixel formats */
 850         if ((osd->vpbe_type == VPBE_VERSION_1) &&
 851             is_osd_win(layer) && is_rgb_pixfmt(lconfig->pixfmt)) {
 852                 enum osd_pix_format pixfmt;
 853
 854                 if (layer == WIN_OSD0)
 855                         pixfmt = osd->win[WIN_OSD1].lconfig.pixfmt;
 856                 else
 857                         pixfmt = osd->win[WIN_OSD0].lconfig.pixfmt;
 858
 859                 if (is_rgb_pixfmt(pixfmt)) {
 860                         /*
 861                          * The other OSD window is already configured for an
 862                          * RGB, so keep the current layer configuration.
 863                          */
 864                         *lconfig = win->lconfig;
 865                         return 1;
 866                 }
 867         }
 868
 869         /* DM6446: only one video window at a time can use RGB888 */
 870         if ((osd->vpbe_type == VPBE_VERSION_1) && is_vid_win(layer) &&
 871                 lconfig->pixfmt == PIXFMT_RGB888) {
 872                 enum osd_pix_format pixfmt;
 873
 874                 if (layer == WIN_VID0)
 875                         pixfmt = osd->win[WIN_VID1].lconfig.pixfmt;
 876                 else
 877                         pixfmt = osd->win[WIN_VID0].lconfig.pixfmt;
 878
 879                 if (pixfmt == PIXFMT_RGB888) {
 880                         /*
 881                          * The other video window is already configured for
 882                          * RGB888, so keep the current layer configuration.
 883                          */
 884                         *lconfig = win->lconfig;
 885                         return 1;
 886                 }
 887         }
 888
 889         /* window dimensions must be non-zero */
 890         if (!lconfig->line_length || !lconfig->xsize || !lconfig->ysize) {
 891                 *lconfig = win->lconfig;
 892                 return 1;
 893         }
 894
 895         /* round line_length up to a multiple of 32 */
 896         lconfig->line_length = ((lconfig->line_length + 31) / 32) * 32;
 897         lconfig->line_length =
 898             min(lconfig->line_length, (unsigned)MAX_LINE_LENGTH);
 899         lconfig->xsize = min(lconfig->xsize, (unsigned)MAX_WIN_SIZE);
 900         lconfig->ysize = min(lconfig->ysize, (unsigned)MAX_WIN_SIZE);
 901         lconfig->xpos = min(lconfig->xpos, (unsigned)MAX_WIN_SIZE);
 902         lconfig->ypos = min(lconfig->ypos, (unsigned)MAX_WIN_SIZE);
 903         lconfig->interlaced = (lconfig->interlaced != 0);
 904         if (lconfig->interlaced) {
 905                 /* ysize and ypos must be even for interlaced displays */
 906                 lconfig->ysize &= ~1;
 907                 lconfig->ypos &= ~1;
 908         }
 909
 910         return 0;
 911 }
 912
 913 static void _osd_disable_vid_rgb888(struct osd_state *sd)
 914 {
 915         /*
 916          * The DM6446 supports RGB888 pixel format in a single video window.
 917          * This routine disables RGB888 pixel format for both video windows.
 918          * The caller must ensure that neither video window is currently
 919          * configured for RGB888 pixel format.
 920          */
 921         if (sd->vpbe_type == VPBE_VERSION_1)
 922                 osd_clear(sd, OSD_MISCCTL_RGBEN, OSD_MISCCTL);
 923 }
 924
 925 static void _osd_enable_vid_rgb888(struct osd_state *sd,
 926                                    enum osd_layer layer)
 927 {
 928         /*
 929          * The DM6446 supports RGB888 pixel format in a single video window.
 930          * This routine enables RGB888 pixel format for the specified video
 931          * window.  The caller must ensure that the other video window is not
 932          * currently configured for RGB888 pixel format, as this routine will
 933          * disable RGB888 pixel format for the other window.
 934          */
 935         if (sd->vpbe_type == VPBE_VERSION_1) {
 936                 if (layer == WIN_VID0)
 937                         osd_modify(sd, OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
 938                                   OSD_MISCCTL_RGBEN, OSD_MISCCTL);
 939                 else if (layer == WIN_VID1)
 940                         osd_modify(sd, OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
 941                                   OSD_MISCCTL_RGBEN | OSD_MISCCTL_RGBWIN,
 942                                   OSD_MISCCTL);
 943         }
 944 }
 945
 946 static void _osd_set_cbcr_order(struct osd_state *sd,
 947                                 enum osd_pix_format pixfmt)
 948 {
 949         /*
 950          * The caller must ensure that all windows using YC pixfmt use the same
 951          * Cb/Cr order.
 952          */
 953         if (pixfmt == PIXFMT_YCBCRI)
 954                 osd_clear(sd, OSD_MODE_CS, OSD_MODE);
 955         else if (pixfmt == PIXFMT_YCRCBI)
 956                 osd_set(sd, OSD_MODE_CS, OSD_MODE);
 957 }
 958
 959 static void _osd_set_layer_config(struct osd_state *sd, enum osd_layer layer,
 960                                   const struct osd_layer_config *lconfig)
 961 {
 962         u32 winmd = 0, winmd_mask = 0, bmw = 0;
 963
 964         _osd_set_cbcr_order(sd, lconfig->pixfmt);
 965
 966         switch (layer) {
 967         case WIN_OSD0:
 968                 if (sd->vpbe_type == VPBE_VERSION_1) {
 969                         winmd_mask |= OSD_OSDWIN0MD_RGB0E;
 970                         if (lconfig->pixfmt == PIXFMT_RGB565)
 971                                 winmd |= OSD_OSDWIN0MD_RGB0E;
 972                 } else if ((sd->vpbe_type == VPBE_VERSION_3) ||
 973                   (sd->vpbe_type == VPBE_VERSION_2)) {
 974                         winmd_mask |= OSD_OSDWIN0MD_BMP0MD;
 975                         switch (lconfig->pixfmt) {
 976                         case PIXFMT_RGB565:
 977                                         winmd |= (1 <<
 978                                         OSD_OSDWIN0MD_BMP0MD_SHIFT);
 979                                         break;
 980                         case PIXFMT_RGB888:
 981                                 winmd |= (2 << OSD_OSDWIN0MD_BMP0MD_SHIFT);
 982                                 _osd_enable_rgb888_pixblend(sd, OSDWIN_OSD0);
 983                                 break;
 984                         case PIXFMT_YCBCRI:
 985                         case PIXFMT_YCRCBI:
 986                                 winmd |= (3 << OSD_OSDWIN0MD_BMP0MD_SHIFT);
 987                                 break;
 988                         default:
 989                                 break;
 990                         }
 991                 }
 992
 993                 winmd_mask |= OSD_OSDWIN0MD_BMW0 | OSD_OSDWIN0MD_OFF0;
 994
 995                 switch (lconfig->pixfmt) {
 996                 case PIXFMT_1BPP:
 997                         bmw = 0;
 998                         break;
 999                 case PIXFMT_2BPP:
1000                         bmw = 1;
1001                         break;
1002                 case PIXFMT_4BPP:
1003                         bmw = 2;
1004                         break;
1005                 case PIXFMT_8BPP:
1006                         bmw = 3;
1007                         break;
1008                 default:
1009                         break;
1010                 }
1011                 winmd |= (bmw << OSD_OSDWIN0MD_BMW0_SHIFT);
1012
1013                 if (lconfig->interlaced)
1014                         winmd |= OSD_OSDWIN0MD_OFF0;
1015
1016                 osd_modify(sd, winmd_mask, winmd, OSD_OSDWIN0MD);
1017                 osd_write(sd, lconfig->line_length >> 5, OSD_OSDWIN0OFST);
1018                 osd_write(sd, lconfig->xpos, OSD_OSDWIN0XP);
1019                 osd_write(sd, lconfig->xsize, OSD_OSDWIN0XL);
1020                 if (lconfig->interlaced) {
1021                         osd_write(sd, lconfig->ypos >> 1, OSD_OSDWIN0YP);
1022                         osd_write(sd, lconfig->ysize >> 1, OSD_OSDWIN0YL);
1023                 } else {
1024                         osd_write(sd, lconfig->ypos, OSD_OSDWIN0YP);
1025                         osd_write(sd, lconfig->ysize, OSD_OSDWIN0YL);
1026                 }
1027                 break;
1028         case WIN_VID0:
1029                 winmd_mask |= OSD_VIDWINMD_VFF0;
1030                 if (lconfig->interlaced)
1031                         winmd |= OSD_VIDWINMD_VFF0;
1032
1033                 osd_modify(sd, winmd_mask, winmd, OSD_VIDWINMD);
1034                 osd_write(sd, lconfig->line_length >> 5, OSD_VIDWIN0OFST);
1035                 osd_write(sd, lconfig->xpos, OSD_VIDWIN0XP);
1036                 osd_write(sd, lconfig->xsize, OSD_VIDWIN0XL);
1037                 /*
1038                  * For YUV420P format the register contents are
1039                  * duplicated in both VID registers
1040                  */
1041                 if ((sd->vpbe_type == VPBE_VERSION_2) &&
1042                                 (lconfig->pixfmt == PIXFMT_NV12)) {
1043                         /* other window also */
1044                         if (lconfig->interlaced) {
1045                                 winmd_mask |= OSD_VIDWINMD_VFF1;
1046                                 winmd |= OSD_VIDWINMD_VFF1;
1047                                 osd_modify(sd, winmd_mask, winmd,
1048                                           OSD_VIDWINMD);
1049                         }
1050
1051                         osd_modify(sd, OSD_MISCCTL_S420D,
1052                                     OSD_MISCCTL_S420D, OSD_MISCCTL);
1053                         osd_write(sd, lconfig->line_length >> 5,
1054                                   OSD_VIDWIN1OFST);
1055                         osd_write(sd, lconfig->xpos, OSD_VIDWIN1XP);
1056                         osd_write(sd, lconfig->xsize, OSD_VIDWIN1XL);
1057                         /*
1058                           * if NV21 pixfmt and line length not 32B
1059                           * aligned (e.g. NTSC), Need to set window
1060                           * X pixel size to be 32B aligned as well
1061                           */
1062                         if (lconfig->xsize % 32) {
1063                                 osd_write(sd,
1064                                           ((lconfig->xsize + 31) & ~31),
1065                                           OSD_VIDWIN1XL);
1066                                 osd_write(sd,
1067                                           ((lconfig->xsize + 31) & ~31),
1068                                           OSD_VIDWIN0XL);
1069                         }
1070                 } else if ((sd->vpbe_type == VPBE_VERSION_2) &&
1071                                 (lconfig->pixfmt != PIXFMT_NV12)) {
1072                         osd_modify(sd, OSD_MISCCTL_S420D, ~OSD_MISCCTL_S420D,
1073                                                 OSD_MISCCTL);
1074                 }
1075
1076                 if (lconfig->interlaced) {
1077                         osd_write(sd, lconfig->ypos >> 1, OSD_VIDWIN0YP);
1078                         osd_write(sd, lconfig->ysize >> 1, OSD_VIDWIN0YL);
1079                         if ((sd->vpbe_type == VPBE_VERSION_2) &&
1080                                 lconfig->pixfmt == PIXFMT_NV12) {
1081                                 osd_write(sd, lconfig->ypos >> 1,
1082                                           OSD_VIDWIN1YP);
1083                                 osd_write(sd, lconfig->ysize >> 1,
1084                                           OSD_VIDWIN1YL);
1085                         }
1086                 } else {
1087                         osd_write(sd, lconfig->ypos, OSD_VIDWIN0YP);
1088                         osd_write(sd, lconfig->ysize, OSD_VIDWIN0YL);
1089                         if ((sd->vpbe_type == VPBE_VERSION_2) &&
1090                                 lconfig->pixfmt == PIXFMT_NV12) {
1091                                 osd_write(sd, lconfig->ypos, OSD_VIDWIN1YP);
1092                                 osd_write(sd, lconfig->ysize, OSD_VIDWIN1YL);
1093                         }
1094                 }
1095                 break;
1096         case WIN_OSD1:
1097                 /*
1098                  * The caller must ensure that OSD1 is disabled prior to
1099                  * switching from a normal mode to attribute mode or from
1100                  * attribute mode to a normal mode.
1101                  */
1102                 if (lconfig->pixfmt == PIXFMT_OSD_ATTR) {
1103                         if (sd->vpbe_type == VPBE_VERSION_1) {
1104                                 winmd_mask |= OSD_OSDWIN1MD_ATN1E |
1105                                 OSD_OSDWIN1MD_RGB1E | OSD_OSDWIN1MD_CLUTS1 |
1106                                 OSD_OSDWIN1MD_BLND1 | OSD_OSDWIN1MD_TE1;
1107                         } else {
1108                                 winmd_mask |= OSD_OSDWIN1MD_BMP1MD |
1109                                 OSD_OSDWIN1MD_CLUTS1 | OSD_OSDWIN1MD_BLND1 |
1110                                 OSD_OSDWIN1MD_TE1;
1111                         }
1112                 } else {
1113                         if (sd->vpbe_type == VPBE_VERSION_1) {
1114                                 winmd_mask |= OSD_OSDWIN1MD_RGB1E;
1115                                 if (lconfig->pixfmt == PIXFMT_RGB565)
1116                                         winmd |= OSD_OSDWIN1MD_RGB1E;
1117                         } else if ((sd->vpbe_type == VPBE_VERSION_3)
1118                                    || (sd->vpbe_type == VPBE_VERSION_2)) {
1119                                 winmd_mask |= OSD_OSDWIN1MD_BMP1MD;
1120                                 switch (lconfig->pixfmt) {
1121                                 case PIXFMT_RGB565:
1122                                         winmd |=
1123                                             (1 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
1124                                         break;
1125                                 case PIXFMT_RGB888:
1126                                         winmd |=
1127                                             (2 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
1128                                         _osd_enable_rgb888_pixblend(sd,
1129                                                         OSDWIN_OSD1);
1130                                         break;
1131                                 case PIXFMT_YCBCRI:
1132                                 case PIXFMT_YCRCBI:
1133                                         winmd |=
1134                                             (3 << OSD_OSDWIN1MD_BMP1MD_SHIFT);
1135                                         break;
1136                                 default:
1137                                         break;
1138                                 }
1139                         }
1140
1141                         winmd_mask |= OSD_OSDWIN1MD_BMW1;
1142                         switch (lconfig->pixfmt) {
1143                         case PIXFMT_1BPP:
1144                                 bmw = 0;
1145                                 break;
1146                         case PIXFMT_2BPP:
1147                                 bmw = 1;
1148                                 break;
1149                         case PIXFMT_4BPP:
1150                                 bmw = 2;
1151                                 break;
1152                         case PIXFMT_8BPP:
1153                                 bmw = 3;
1154                                 break;
1155                         default:
1156                                 break;
1157                         }
1158                         winmd |= (bmw << OSD_OSDWIN1MD_BMW1_SHIFT);
1159                 }
1160
1161                 winmd_mask |= OSD_OSDWIN1MD_OFF1;
1162                 if (lconfig->interlaced)
1163                         winmd |= OSD_OSDWIN1MD_OFF1;
1164
1165                 osd_modify(sd, winmd_mask, winmd, OSD_OSDWIN1MD);
1166                 osd_write(sd, lconfig->line_length >> 5, OSD_OSDWIN1OFST);
1167                 osd_write(sd, lconfig->xpos, OSD_OSDWIN1XP);
1168                 osd_write(sd, lconfig->xsize, OSD_OSDWIN1XL);
1169                 if (lconfig->interlaced) {
1170                         osd_write(sd, lconfig->ypos >> 1, OSD_OSDWIN1YP);
1171                         osd_write(sd, lconfig->ysize >> 1, OSD_OSDWIN1YL);
1172                 } else {
1173                         osd_write(sd, lconfig->ypos, OSD_OSDWIN1YP);
1174                         osd_write(sd, lconfig->ysize, OSD_OSDWIN1YL);
1175                 }
1176                 break;
1177         case WIN_VID1:
1178                 winmd_mask |= OSD_VIDWINMD_VFF1;
1179                 if (lconfig->interlaced)
1180                         winmd |= OSD_VIDWINMD_VFF1;
1181
1182                 osd_modify(sd, winmd_mask, winmd, OSD_VIDWINMD);
1183                 osd_write(sd, lconfig->line_length >> 5, OSD_VIDWIN1OFST);
1184                 osd_write(sd, lconfig->xpos, OSD_VIDWIN1XP);
1185                 osd_write(sd, lconfig->xsize, OSD_VIDWIN1XL);
1186                 /*
1187                  * For YUV420P format the register contents are
1188                  * duplicated in both VID registers
1189                  */
1190                 if (sd->vpbe_type == VPBE_VERSION_2) {
1191                         if (lconfig->pixfmt == PIXFMT_NV12) {
1192                                 /* other window also */
1193                                 if (lconfig->interlaced) {
1194                                         winmd_mask |= OSD_VIDWINMD_VFF0;
1195                                         winmd |= OSD_VIDWINMD_VFF0;
1196                                         osd_modify(sd, winmd_mask, winmd,
1197                                                   OSD_VIDWINMD);
1198                                 }
1199                                 osd_modify(sd, OSD_MISCCTL_S420D,
1200                                            OSD_MISCCTL_S420D, OSD_MISCCTL);
1201                                 osd_write(sd, lconfig->line_length >> 5,
1202                                           OSD_VIDWIN0OFST);
1203                                 osd_write(sd, lconfig->xpos, OSD_VIDWIN0XP);
1204                                 osd_write(sd, lconfig->xsize, OSD_VIDWIN0XL);
1205                         } else {
1206                                 osd_modify(sd, OSD_MISCCTL_S420D,
1207                                            ~OSD_MISCCTL_S420D, OSD_MISCCTL);
1208                         }
1209                 }
1210
1211                 if (lconfig->interlaced) {
1212                         osd_write(sd, lconfig->ypos >> 1, OSD_VIDWIN1YP);
1213                         osd_write(sd, lconfig->ysize >> 1, OSD_VIDWIN1YL);
1214                         if ((sd->vpbe_type == VPBE_VERSION_2) &&
1215                                 lconfig->pixfmt == PIXFMT_NV12) {
1216                                 osd_write(sd, lconfig->ypos >> 1,
1217                                           OSD_VIDWIN0YP);
1218                                 osd_write(sd, lconfig->ysize >> 1,
1219                                           OSD_VIDWIN0YL);
1220                         }
1221                 } else {
1222                         osd_write(sd, lconfig->ypos, OSD_VIDWIN1YP);
1223                         osd_write(sd, lconfig->ysize, OSD_VIDWIN1YL);
1224                         if ((sd->vpbe_type == VPBE_VERSION_2) &&
1225                                 lconfig->pixfmt == PIXFMT_NV12) {
1226                                 osd_write(sd, lconfig->ypos, OSD_VIDWIN0YP);
1227                                 osd_write(sd, lconfig->ysize, OSD_VIDWIN0YL);
1228                         }
1229                 }
1230                 break;
1231         }
1232 }
1233
1234 static int osd_set_layer_config(struct osd_state *sd, enum osd_layer layer,
1235                                 struct osd_layer_config *lconfig)
1236 {
1237         struct osd_state *osd = sd;
1238         struct osd_window_state *win = &osd->win[layer];
1239         struct osd_layer_config *cfg = &win->lconfig;
1240         unsigned long flags;
1241         int reject_config;
1242
1243         spin_lock_irqsave(&osd->lock, flags);
1244
1245         reject_config = try_layer_config(sd, layer, lconfig);
1246         if (reject_config) {
1247                 spin_unlock_irqrestore(&osd->lock, flags);
1248                 return reject_config;
1249         }
1250
1251         /* update the current Cb/Cr order */
1252         if (is_yc_pixfmt(lconfig->pixfmt))
1253                 osd->yc_pixfmt = lconfig->pixfmt;
1254
1255         /*
1256          * If we are switching OSD1 from normal mode to attribute mode or from
1257          * attribute mode to normal mode, then we must disable the window.
1258          */
1259         if (layer == WIN_OSD1) {
1260                 if (((lconfig->pixfmt == PIXFMT_OSD_ATTR) &&
1261                   (cfg->pixfmt != PIXFMT_OSD_ATTR)) ||
1262                   ((lconfig->pixfmt != PIXFMT_OSD_ATTR) &&
1263                   (cfg->pixfmt == PIXFMT_OSD_ATTR))) {
1264                         win->is_enabled = 0;
1265                         _osd_disable_layer(sd, layer);
1266                 }
1267         }
1268
1269         _osd_set_layer_config(sd, layer, lconfig);
1270
1271         if (layer == WIN_OSD1) {
1272                 struct osd_osdwin_state *osdwin_state =
1273                     &osd->osdwin[OSDWIN_OSD1];
1274
1275                 if ((lconfig->pixfmt != PIXFMT_OSD_ATTR) &&
1276                   (cfg->pixfmt == PIXFMT_OSD_ATTR)) {
1277                         /*
1278                          * We just switched OSD1 from attribute mode to normal
1279                          * mode, so we must initialize the CLUT select, the
1280                          * blend factor, transparency colorkey enable, and
1281                          * attenuation enable (DM6446 only) bits in the
1282                          * OSDWIN1MD register.
1283                          */
1284                         _osd_set_osd_clut(sd, OSDWIN_OSD1,
1285                                                    osdwin_state->clut);
1286                         _osd_set_blending_factor(sd, OSDWIN_OSD1,
1287                                                           osdwin_state->blend);
1288                         if (osdwin_state->colorkey_blending) {
1289                                 _osd_enable_color_key(sd, OSDWIN_OSD1,
1290                                                                osdwin_state->
1291                                                                colorkey,
1292                                                                lconfig->pixfmt);
1293                         } else
1294                                 _osd_disable_color_key(sd, OSDWIN_OSD1);
1295                         _osd_set_rec601_attenuation(sd, OSDWIN_OSD1,
1296                                                     osdwin_state->
1297                                                     rec601_attenuation);
1298                 } else if ((lconfig->pixfmt == PIXFMT_OSD_ATTR) &&
1299                   (cfg->pixfmt != PIXFMT_OSD_ATTR)) {
1300                         /*
1301                          * We just switched OSD1 from normal mode to attribute
1302                          * mode, so we must initialize the blink enable and
1303                          * blink interval bits in the OSDATRMD register.
1304                          */
1305                         _osd_set_blink_attribute(sd, osd->is_blinking,
1306                                                           osd->blink);
1307                 }
1308         }
1309
1310         /*
1311          * If we just switched to a 1-, 2-, or 4-bits-per-pixel bitmap format
1312          * then configure a default palette map.
1313          */
1314         if ((lconfig->pixfmt != cfg->pixfmt) &&
1315           ((lconfig->pixfmt == PIXFMT_1BPP) ||
1316           (lconfig->pixfmt == PIXFMT_2BPP) ||
1317           (lconfig->pixfmt == PIXFMT_4BPP))) {
1318                 enum osd_win_layer osdwin =
1319                     ((layer == WIN_OSD0) ? OSDWIN_OSD0 : OSDWIN_OSD1);
1320                 struct osd_osdwin_state *osdwin_state =
1321                     &osd->osdwin[osdwin];
1322                 unsigned char clut_index;
1323                 unsigned char clut_entries = 0;
1324
1325                 switch (lconfig->pixfmt) {
1326                 case PIXFMT_1BPP:
1327                         clut_entries = 2;
1328                         break;
1329                 case PIXFMT_2BPP:
1330                         clut_entries = 4;
1331                         break;
1332                 case PIXFMT_4BPP:
1333                         clut_entries = 16;
1334                         break;
1335                 default:
1336                         break;
1337                 }
1338                 /*
1339                  * The default palette map maps the pixel value to the clut
1340                  * index, i.e. pixel value 0 maps to clut entry 0, pixel value
1341                  * 1 maps to clut entry 1, etc.
1342                  */
1343                 for (clut_index = 0; clut_index < 16; clut_index++) {
1344                         osdwin_state->palette_map[clut_index] = clut_index;
1345                         if (clut_index < clut_entries) {
1346                                 _osd_set_palette_map(sd, osdwin, clut_index,
1347                                                      clut_index,
1348                                                      lconfig->pixfmt);
1349                         }
1350                 }
1351         }
1352
1353         *cfg = *lconfig;
1354         /* DM6446: configure the RGB888 enable and window selection */
1355         if (osd->win[WIN_VID0].lconfig.pixfmt == PIXFMT_RGB888)
1356                 _osd_enable_vid_rgb888(sd, WIN_VID0);
1357         else if (osd->win[WIN_VID1].lconfig.pixfmt == PIXFMT_RGB888)
1358                 _osd_enable_vid_rgb888(sd, WIN_VID1);
1359         else
1360                 _osd_disable_vid_rgb888(sd);
1361
1362         if (layer == WIN_VID0) {
1363                 osd->pingpong =
1364                     _osd_dm6446_vid0_pingpong(sd, osd->field_inversion,
1365                                                        win->fb_base_phys,
1366                                                        cfg);
1367         }
1368
1369         spin_unlock_irqrestore(&osd->lock, flags);
1370
1371         return 0;
1372 }
1373
1374 static void osd_init_layer(struct osd_state *sd, enum osd_layer layer)
1375 {
1376         struct osd_state *osd = sd;
1377         struct osd_window_state *win = &osd->win[layer];
1378         enum osd_win_layer osdwin;
1379         struct osd_osdwin_state *osdwin_state;
1380         struct osd_layer_config *cfg = &win->lconfig;
1381         unsigned long flags;
1382
1383         spin_lock_irqsave(&osd->lock, flags);
1384
1385         win->is_enabled = 0;
1386         _osd_disable_layer(sd, layer);
1387
1388         win->h_zoom = ZOOM_X1;
1389         win->v_zoom = ZOOM_X1;
1390         _osd_set_zoom(sd, layer, win->h_zoom, win->v_zoom);
1391
1392         win->fb_base_phys = 0;
1393         _osd_start_layer(sd, layer, win->fb_base_phys, 0);
1394
1395         cfg->line_length = 0;
1396         cfg->xsize = 0;
1397         cfg->ysize = 0;
1398         cfg->xpos = 0;
1399         cfg->ypos = 0;
1400         cfg->interlaced = 0;
1401         switch (layer) {
1402         case WIN_OSD0:
1403         case WIN_OSD1:
1404                 osdwin = (layer == WIN_OSD0) ? OSDWIN_OSD0 : OSDWIN_OSD1;
1405                 osdwin_state = &osd->osdwin[osdwin];
1406                 /*
1407                  * Other code relies on the fact that OSD windows default to a
1408                  * bitmap pixel format when they are deallocated, so don't
1409                  * change this default pixel format.
1410                  */
1411                 cfg->pixfmt = PIXFMT_8BPP;
1412                 _osd_set_layer_config(sd, layer, cfg);
1413                 osdwin_state->clut = RAM_CLUT;
1414                 _osd_set_osd_clut(sd, osdwin, osdwin_state->clut);
1415                 osdwin_state->colorkey_blending = 0;
1416                 _osd_disable_color_key(sd, osdwin);
1417                 osdwin_state->blend = OSD_8_VID_0;
1418                 _osd_set_blending_factor(sd, osdwin, osdwin_state->blend);
1419                 osdwin_state->rec601_attenuation = 0;
1420                 _osd_set_rec601_attenuation(sd, osdwin,
1421                                                      osdwin_state->
1422                                                      rec601_attenuation);
1423                 if (osdwin == OSDWIN_OSD1) {
1424                         osd->is_blinking = 0;
1425                         osd->blink = BLINK_X1;
1426                 }
1427                 break;
1428         case WIN_VID0:
1429         case WIN_VID1:
1430                 cfg->pixfmt = osd->yc_pixfmt;
1431                 _osd_set_layer_config(sd, layer, cfg);
1432                 break;
1433         }
1434
1435         spin_unlock_irqrestore(&osd->lock, flags);
1436 }
1437
1438 static void osd_release_layer(struct osd_state *sd, enum osd_layer layer)
1439 {
1440         struct osd_state *osd = sd;
1441         struct osd_window_state *win = &osd->win[layer];
1442         unsigned long flags;
1443
1444         spin_lock_irqsave(&osd->lock, flags);
1445
1446         if (!win->is_allocated) {
1447                 spin_unlock_irqrestore(&osd->lock, flags);
1448                 return;
1449         }
1450
1451         spin_unlock_irqrestore(&osd->lock, flags);
1452         osd_init_layer(sd, layer);
1453         spin_lock_irqsave(&osd->lock, flags);
1454
1455         win->is_allocated = 0;
1456
1457         spin_unlock_irqrestore(&osd->lock, flags);
1458 }
1459
1460 static int osd_request_layer(struct osd_state *sd, enum osd_layer layer)
1461 {
1462         struct osd_state *osd = sd;
1463         struct osd_window_state *win = &osd->win[layer];
1464         unsigned long flags;
1465
1466         spin_lock_irqsave(&osd->lock, flags);
1467
1468         if (win->is_allocated) {
1469                 spin_unlock_irqrestore(&osd->lock, flags);
1470                 return -1;
1471         }
1472         win->is_allocated = 1;
1473
1474         spin_unlock_irqrestore(&osd->lock, flags);
1475
1476         return 0;
1477 }
1478
1479 static void _osd_init(struct osd_state *sd)
1480 {
1481         osd_write(sd, 0, OSD_MODE);
1482         osd_write(sd, 0, OSD_VIDWINMD);
1483         osd_write(sd, 0, OSD_OSDWIN0MD);
1484         osd_write(sd, 0, OSD_OSDWIN1MD);
1485         osd_write(sd, 0, OSD_RECTCUR);
1486         osd_write(sd, 0, OSD_MISCCTL);
1487         if (sd->vpbe_type == VPBE_VERSION_3) {
1488                 osd_write(sd, 0, OSD_VBNDRY);
1489                 osd_write(sd, 0, OSD_EXTMODE);
1490                 osd_write(sd, OSD_MISCCTL_DMANG, OSD_MISCCTL);
1491         }
1492 }
1493
1494 static void osd_set_left_margin(struct osd_state *sd, u32 val)
1495 {
1496         osd_write(sd, val, OSD_BASEPX);
1497 }
1498
1499 static void osd_set_top_margin(struct osd_state *sd, u32 val)
1500 {
1501         osd_write(sd, val, OSD_BASEPY);
1502 }
1503
1504 static int osd_initialize(struct osd_state *osd)
1505 {
1506         if (osd == NULL)
1507                 return -ENODEV;
1508         _osd_init(osd);
1509
1510         /* set default Cb/Cr order */
1511         osd->yc_pixfmt = PIXFMT_YCBCRI;
1512
1513         if (osd->vpbe_type == VPBE_VERSION_3) {
1514                 /*
1515                  * ROM CLUT1 on the DM355 is similar (identical?) to ROM CLUT0
1516                  * on the DM6446, so make ROM_CLUT1 the default on the DM355.
1517                  */
1518                 osd->rom_clut = ROM_CLUT1;
1519         }
1520
1521         _osd_set_field_inversion(osd, osd->field_inversion);
1522         _osd_set_rom_clut(osd, osd->rom_clut);
1523
1524         osd_init_layer(osd, WIN_OSD0);
1525         osd_init_layer(osd, WIN_VID0);
1526         osd_init_layer(osd, WIN_OSD1);
1527         osd_init_layer(osd, WIN_VID1);
1528
1529         return 0;
1530 }
1531
1532 static const struct vpbe_osd_ops osd_ops = {
1533         .initialize = osd_initialize,
1534         .request_layer = osd_request_layer,
1535         .release_layer = osd_release_layer,
1536         .enable_layer = osd_enable_layer,
1537         .disable_layer = osd_disable_layer,
1538         .set_layer_config = osd_set_layer_config,
1539         .get_layer_config = osd_get_layer_config,
1540         .start_layer = osd_start_layer,
1541         .set_left_margin = osd_set_left_margin,
1542         .set_top_margin = osd_set_top_margin,
1543 };
1544
1545 static int osd_probe(struct platform_device *pdev)
1546 {
1547         const struct platform_device_id *pdev_id;
1548         struct osd_state *osd;
1549         struct resource *res;
1550
1551         pdev_id = platform_get_device_id(pdev);
1552         if (!pdev_id)
1553                 return -EINVAL;
1554
1555         osd = devm_kzalloc(&pdev->dev, sizeof(struct osd_state), GFP_KERNEL);
1556         if (osd == NULL)
1557                 return -ENOMEM;
1558
1559
1560         osd->dev = &pdev->dev;
1561         osd->vpbe_type = pdev_id->driver_data;
1562
1563         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1564         osd->osd_base = devm_ioremap_resource(&pdev->dev, res);
1565         if (IS_ERR(osd->osd_base))
1566                 return PTR_ERR(osd->osd_base);
1567
1568         osd->osd_base_phys = res->start;
1569         osd->osd_size = resource_size(res);
1570         spin_lock_init(&osd->lock);
1571         osd->ops = osd_ops;
1572         platform_set_drvdata(pdev, osd);
1573         dev_notice(osd->dev, "OSD sub device probe success\n");
1574
1575         return 0;
1576 }
1577
1578 static int osd_remove(struct platform_device *pdev)
1579 {
1580         return 0;
1581 }
1582
1583 static struct platform_driver osd_driver = {
1584         .probe          = osd_probe,
1585         .remove         = osd_remove,
1586         .driver         = {
1587                 .name   = MODULE_NAME,
1588         },
1589         .id_table       = vpbe_osd_devtype
1590 };
1591
1592 module_platform_driver(osd_driver);
1593
1594 MODULE_LICENSE("GPL");
1595 MODULE_DESCRIPTION("DaVinci OSD Manager Driver");
1596 MODULE_AUTHOR("Texas Instruments");