linux/drivers/media/platform/davinci/vpbe_osd.c
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   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 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22 *
  23 */
  24#include <linux/module.h>
  25#include <linux/kernel.h>
  26#include <linux/interrupt.h>
  27#include <linux/platform_device.h>
  28#include <linux/clk.h>
  29#include <linux/slab.h>
  30
  31#include <mach/cputype.h>
  32#include <mach/hardware.h>
  33
  34#include <media/davinci/vpss.h>
  35#include <media/v4l2-device.h>
  36#include <media/davinci/vpbe_types.h>
  37#include <media/davinci/vpbe_osd.h>
  38
  39#include <linux/io.h>
  40#include "vpbe_osd_regs.h"
  41
  42#define MODULE_NAME     "davinci-vpbe-osd"
  43
  44static struct platform_device_id vpbe_osd_devtype[] = {
  45        {
  46                .name = DM644X_VPBE_OSD_SUBDEV_NAME,
  47                .driver_data = VPBE_VERSION_1,
  48        }, {
  49                .name = DM365_VPBE_OSD_SUBDEV_NAME,
  50                .driver_data = VPBE_VERSION_2,
  51        }, {
  52                .name = DM355_VPBE_OSD_SUBDEV_NAME,
  53                .driver_data = VPBE_VERSION_3,
  54        },
  55        {
  56                /* sentinel */
  57        }
  58};
  59
  60MODULE_DEVICE_TABLE(platform, vpbe_osd_devtype);
  61
  62/* register access routines */
  63static inline u32 osd_read(struct osd_state *sd, u32 offset)
  64{
  65        struct osd_state *osd = sd;
  66
  67        return readl(osd->osd_base + offset);
  68}
  69
  70static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
  71{
  72        struct osd_state *osd = sd;
  73
  74        writel(val, osd->osd_base + offset);
  75
  76        return val;
  77}
  78
  79static inline u32 osd_set(struct osd_state *sd, u32 mask, u32 offset)
  80{
  81        struct osd_state *osd = sd;
  82
  83        void __iomem *addr = osd->osd_base + offset;
  84        u32 val = readl(addr) | mask;
  85
  86        writel(val, addr);
  87
  88        return val;
  89}
  90
  91static inline u32 osd_clear(struct osd_state *sd, u32 mask, u32 offset)
  92{
  93        struct osd_state *osd = sd;
  94
  95        void __iomem *addr = osd->osd_base + offset;
  96        u32 val = readl(addr) & ~mask;
  97
  98        writel(val, addr);
  99
 100        return val;
 101}
 102
 103static inline u32 osd_modify(struct osd_state *sd, u32 mask, u32 val,
 104                                 u32 offset)
 105{
 106        struct osd_state *osd = sd;
 107
 108        void __iomem *addr = osd->osd_base + offset;
 109        u32 new_val = (readl(addr) & ~mask) | (val & mask);
 110
 111        writel(new_val, addr);
 112
 113        return new_val;
 114}
 115
 116/* define some macros for layer and pixfmt classification */
 117#define is_osd_win(layer) (((layer) == WIN_OSD0) || ((layer) == WIN_OSD1))
 118#define is_vid_win(layer) (((layer) == WIN_VID0) || ((layer) == WIN_VID1))
 119#define is_rgb_pixfmt(pixfmt) \
 120        (((pixfmt) == PIXFMT_RGB565) || ((pixfmt) == PIXFMT_RGB888))
 121#define is_yc_pixfmt(pixfmt) \
 122        (((pixfmt) == PIXFMT_YCbCrI) || ((pixfmt) == PIXFMT_YCrCbI) || \
 123        ((pixfmt) == PIXFMT_NV12))
 124#define MAX_WIN_SIZE OSD_VIDWIN0XP_V0X
 125#define MAX_LINE_LENGTH (OSD_VIDWIN0OFST_V0LO << 5)
 126
 127/**
 128 * _osd_dm6446_vid0_pingpong() - field inversion fix for DM6446
 129 * @sd - ptr to struct osd_state
 130 * @field_inversion - inversion flag
 131 * @fb_base_phys - frame buffer address
 132 * @lconfig - ptr to layer config
 133 *
 134 * This routine implements a workaround for the field signal inversion silicon
 135 * erratum described in Advisory 1.3.8 for the DM6446.  The fb_base_phys and
 136 * lconfig parameters apply to the vid0 window.  This routine should be called
 137 * whenever the vid0 layer configuration or start address is modified, or when
 138 * the OSD field inversion setting is modified.
 139 * Returns: 1 if the ping-pong buffers need to be toggled in the vsync isr, or
 140 *          0 otherwise
 141 */
 142static int _osd_dm6446_vid0_pingpong(struct osd_state *sd,
 143                                     int field_inversion,
 144                                     unsigned long fb_base_phys,
 145                                     const struct osd_layer_config *lconfig)
 146{
 147        struct osd_platform_data *pdata;
 148
 149        pdata = (struct osd_platform_data *)sd->dev->platform_data;
 150        if (pdata != NULL && pdata->field_inv_wa_enable) {
 151
 152                if (!field_inversion || !lconfig->interlaced) {
 153                        osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
 154                        osd_write(sd, fb_base_phys & ~0x1F, OSD_PPVWIN0ADR);
 155                        osd_modify(sd, OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, 0,
 156                                   OSD_MISCCTL);
 157                        return 0;
 158                } else {
 159                        unsigned miscctl = OSD_MISCCTL_PPRV;
 160
 161                        osd_write(sd,
 162                                (fb_base_phys & ~0x1F) - lconfig->line_length,
 163                                OSD_VIDWIN0ADR);
 164                        osd_write(sd,
 165                                (fb_base_phys & ~0x1F) + lconfig->line_length,
 166                                OSD_PPVWIN0ADR);
 167                        osd_modify(sd,
 168                                OSD_MISCCTL_PPSW | OSD_MISCCTL_PPRV, miscctl,
 169                                OSD_MISCCTL);
 170
 171                        return 1;
 172                }
 173        }
 174
 175        return 0;
 176}
 177
 178static void _osd_set_field_inversion(struct osd_state *sd, int enable)
 179{
 180        unsigned fsinv = 0;
 181
 182        if (enable)
 183                fsinv = OSD_MODE_FSINV;
 184
 185        osd_modify(sd, OSD_MODE_FSINV, fsinv, OSD_MODE);
 186}
 187
 188static void _osd_set_blink_attribute(struct osd_state *sd, int enable,
 189                                     enum osd_blink_interval blink)
 190{
 191        u32 osdatrmd = 0;
 192
 193        if (enable) {
 194                osdatrmd |= OSD_OSDATRMD_BLNK;
 195                osdatrmd |= blink << OSD_OSDATRMD_BLNKINT_SHIFT;
 196        }
 197        /* caller must ensure that OSD1 is configured in attribute mode */
 198        osd_modify(sd, OSD_OSDATRMD_BLNKINT | OSD_OSDATRMD_BLNK, osdatrmd,
 199                  OSD_OSDATRMD);
 200}
 201
 202static void _osd_set_rom_clut(struct osd_state *sd,
 203                              enum osd_rom_clut rom_clut)
 204{
 205        if (rom_clut == ROM_CLUT0)
 206                osd_clear(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
 207        else
 208                osd_set(sd, OSD_MISCCTL_RSEL, OSD_MISCCTL);
 209}
 210
 211static void _osd_set_palette_map(struct osd_state *sd,
 212                                 enum osd_win_layer osdwin,
 213                                 unsigned char pixel_value,
 214                                 unsigned char clut_index,
 215                                 enum osd_pix_format pixfmt)
 216{
 217        static const int map_2bpp[] = { 0, 5, 10, 15 };
 218        static const int map_1bpp[] = { 0, 15 };
 219        int bmp_offset;
 220        int bmp_shift;
 221        int bmp_mask;
 222        int bmp_reg;
 223
 224        switch (pixfmt) {
 225        case PIXFMT_1BPP:
 226                bmp_reg = map_1bpp[pixel_value & 0x1];
 227                break;
 228        case PIXFMT_2BPP:
 229                bmp_reg = map_2bpp[pixel_value & 0x3];
 230                break;
 231        case PIXFMT_4BPP:
 232                bmp_reg = pixel_value & 0xf;
 233                break;
 234        default:
 235                return;
 236        }
 237
 238        switch (osdwin) {
 239        case OSDWIN_OSD0:
 240                bmp_offset = OSD_W0BMP01 + (bmp_reg >> 1) * sizeof(u32);
 241                break;
 242        case OSDWIN_OSD1:
 243                bmp_offset = OSD_W1BMP01 + (bmp_reg >> 1) * sizeof(u32);
 244                break;
 245        default:
 246                return;
 247        }
 248
 249        if (bmp_reg & 1) {
 250                bmp_shift = 8;
 251                bmp_mask = 0xff << 8;
 252        } else {
 253                bmp_shift = 0;
 254                bmp_mask = 0xff;
 255        }
 256
 257        osd_modify(sd, bmp_mask, clut_index << bmp_shift, bmp_offset);
 258}
 259
 260static void _osd_set_rec601_attenuation(struct osd_state *sd,
 261                                        enum osd_win_layer osdwin, int enable)
 262{
 263        switch (osdwin) {
 264        case OSDWIN_OSD0:
 265                osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
 266                          enable ? OSD_OSDWIN0MD_ATN0E : 0,
 267                          OSD_OSDWIN0MD);
 268                if (sd->vpbe_type == VPBE_VERSION_1)
 269                        osd_modify(sd, OSD_OSDWIN0MD_ATN0E,
 270                                  enable ? OSD_OSDWIN0MD_ATN0E : 0,
 271                                  OSD_OSDWIN0MD);
 272                else if ((sd->vpbe_type == VPBE_VERSION_3) ||
 273                           (sd->vpbe_type == VPBE_VERSION_2))
 274                        osd_modify(sd, OSD_EXTMODE_ATNOSD0EN,
 275                                  enable ? OSD_EXTMODE_ATNOSD0EN : 0,
 276                                  OSD_EXTMODE);
 277                break;
 278        case OSDWIN_OSD1:
 279                osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
 280                          enable ? OSD_OSDWIN1MD_ATN1E : 0,
 281                          OSD_OSDWIN1MD);
 282                if (sd->vpbe_type == VPBE_VERSION_1)
 283                        osd_modify(sd, OSD_OSDWIN1MD_ATN1E,
 284                                  enable ? OSD_OSDWIN1MD_ATN1E : 0,
 285                                  OSD_OSDWIN1MD);
 286                else if ((sd->vpbe_type == VPBE_VERSION_3) ||
 287                           (sd->vpbe_type == VPBE_VERSION_2))
 288                        osd_modify(sd, OSD_EXTMODE_ATNOSD1EN,
 289                                  enable ? OSD_EXTMODE_ATNOSD1EN : 0,
 290                                  OSD_EXTMODE);
 291                break;
 292        }
 293}
 294
 295static void _osd_set_blending_factor(struct osd_state *sd,
 296                                     enum osd_win_layer osdwin,
 297                                     enum osd_blending_factor blend)
 298{
 299        switch (osdwin) {
 300        case OSDWIN_OSD0:
 301                osd_modify(sd, OSD_OSDWIN0MD_BLND0,
 302                          blend << OSD_OSDWIN0MD_BLND0_SHIFT, OSD_OSDWIN0MD);
 303                break;
 304        case OSDWIN_OSD1:
 305                osd_modify(sd, OSD_OSDWIN1MD_BLND1,
 306                          blend << OSD_OSDWIN1MD_BLND1_SHIFT, OSD_OSDWIN1MD);
 307                break;
 308        }
 309}
 310
 311static void _osd_enable_rgb888_pixblend(struct osd_state *sd,
 312                                        enum osd_win_layer osdwin)
 313{
 314
 315        osd_modify(sd, OSD_MISCCTL_BLDSEL, 0, OSD_MISCCTL);
 316        switch (osdwin) {
 317        case OSDWIN_OSD0:
 318                osd_modify(sd, OSD_EXTMODE_OSD0BLDCHR,
 319                          OSD_EXTMODE_OSD0BLDCHR, OSD_EXTMODE);
 320                break;
 321        case OSDWIN_OSD1:
 322                osd_modify(sd, OSD_EXTMODE_OSD1BLDCHR,
 323                          OSD_EXTMODE_OSD1BLDCHR, OSD_EXTMODE);
 324                break;
 325        }
 326}
 327
 328static void _osd_enable_color_key(struct osd_state *sd,
 329                                  enum osd_win_layer osdwin,
 330                                  unsigned colorkey,
 331                                  enum osd_pix_format pixfmt)
 332{
 333        switch (pixfmt) {
 334        case PIXFMT_1BPP:
 335        case PIXFMT_2BPP:
 336        case PIXFMT_4BPP:
 337        case PIXFMT_8BPP:
 338                if (sd->vpbe_type == VPBE_VERSION_3) {
 339                        switch (osdwin) {
 340                        case OSDWIN_OSD0:
 341                                osd_modify(sd, OSD_TRANSPBMPIDX_BMP0,
 342                                          colorkey <<
 343                                          OSD_TRANSPBMPIDX_BMP0_SHIFT,
 344                                          OSD_TRANSPBMPIDX);
 345                                break;
 346                        case OSDWIN_OSD1:
 347                                osd_modify(sd, OSD_TRANSPBMPIDX_BMP1,
 348                                          colorkey <<
 349                                          OSD_TRANSPBMPIDX_BMP1_SHIFT,
 350                                          OSD_TRANSPBMPIDX);
 351                                break;
 352                        }
 353                }
 354                break;
 355        case PIXFMT_RGB565:
 356                if (sd->vpbe_type == VPBE_VERSION_1)
 357                        osd_write(sd, colorkey & OSD_TRANSPVAL_RGBTRANS,
 358                                  OSD_TRANSPVAL);
 359                else if (sd->vpbe_type == VPBE_VERSION_3)
 360                        osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
 361                                  OSD_TRANSPVALL);
 362                break;
 363        case PIXFMT_YCbCrI:
 364        case PIXFMT_YCrCbI:
 365                if (sd->vpbe_type == VPBE_VERSION_3)
 366                        osd_modify(sd, OSD_TRANSPVALU_Y, colorkey,
 367                                   OSD_TRANSPVALU);
 368                break;
 369        case PIXFMT_RGB888:
 370                if (sd->vpbe_type == VPBE_VERSION_3) {
 371                        osd_write(sd, colorkey & OSD_TRANSPVALL_RGBL,
 372                                  OSD_TRANSPVALL);
 373                        osd_modify(sd, OSD_TRANSPVALU_RGBU, colorkey >> 16,
 374                                  OSD_TRANSPVALU);
 375                }
 376                break;
 377        default:
 378                break;
 379        }
 380
 381        switch (osdwin) {
 382        case OSDWIN_OSD0:
 383                osd_set(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
 384                break;
 385        case OSDWIN_OSD1:
 386                osd_set(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
 387                break;
 388        }
 389}
 390
 391static void _osd_disable_color_key(struct osd_state *sd,
 392                                   enum osd_win_layer osdwin)
 393{
 394        switch (osdwin) {
 395        case OSDWIN_OSD0:
 396                osd_clear(sd, OSD_OSDWIN0MD_TE0, OSD_OSDWIN0MD);
 397                break;
 398        case OSDWIN_OSD1:
 399                osd_clear(sd, OSD_OSDWIN1MD_TE1, OSD_OSDWIN1MD);
 400                break;
 401        }
 402}
 403
 404static void _osd_set_osd_clut(struct osd_state *sd,
 405                              enum osd_win_layer osdwin,
 406                              enum osd_clut clut)
 407{
 408        u32 winmd = 0;
 409
 410        switch (osdwin) {
 411        case OSDWIN_OSD0:
 412                if (clut == RAM_CLUT)
 413                        winmd |= OSD_OSDWIN0MD_CLUTS0;
 414                osd_modify(sd, OSD_OSDWIN0MD_CLUTS0, winmd, OSD_OSDWIN0MD);
 415                break;
 416        case OSDWIN_OSD1:
 417                if (clut == RAM_CLUT)
 418                        winmd |= OSD_OSDWIN1MD_CLUTS1;
 419                osd_modify(sd, OSD_OSDWIN1MD_CLUTS1, winmd, OSD_OSDWIN1MD);
 420                break;
 421        }
 422}
 423
 424static void _osd_set_zoom(struct osd_state *sd, enum osd_layer layer,
 425                          enum osd_zoom_factor h_zoom,
 426                          enum osd_zoom_factor v_zoom)
 427{
 428        u32 winmd = 0;
 429
 430        switch (layer) {
 431        case WIN_OSD0:
 432                winmd |= (h_zoom << OSD_OSDWIN0MD_OHZ0_SHIFT);
 433                winmd |= (v_zoom << OSD_OSDWIN0MD_OVZ0_SHIFT);
 434                osd_modify(sd, OSD_OSDWIN0MD_OHZ0 | OSD_OSDWIN0MD_OVZ0, winmd,
 435                          OSD_OSDWIN0MD);
 436                break;
 437        case WIN_VID0:
 438                winmd |= (h_zoom << OSD_VIDWINMD_VHZ0_SHIFT);
 439                winmd |= (v_zoom << OSD_VIDWINMD_VVZ0_SHIFT);
 440                osd_modify(sd, OSD_VIDWINMD_VHZ0 | OSD_VIDWINMD_VVZ0, winmd,
 441                          OSD_VIDWINMD);
 442                break;
 443        case WIN_OSD1:
 444                winmd |= (h_zoom << OSD_OSDWIN1MD_OHZ1_SHIFT);
 445                winmd |= (v_zoom << OSD_OSDWIN1MD_OVZ1_SHIFT);
 446                osd_modify(sd, OSD_OSDWIN1MD_OHZ1 | OSD_OSDWIN1MD_OVZ1, winmd,
 447                          OSD_OSDWIN1MD);
 448                break;
 449        case WIN_VID1:
 450                winmd |= (h_zoom << OSD_VIDWINMD_VHZ1_SHIFT);
 451                winmd |= (v_zoom << OSD_VIDWINMD_VVZ1_SHIFT);
 452                osd_modify(sd, OSD_VIDWINMD_VHZ1 | OSD_VIDWINMD_VVZ1, winmd,
 453                          OSD_VIDWINMD);
 454                break;
 455        }
 456}
 457
 458static void _osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
 459{
 460        switch (layer) {
 461        case WIN_OSD0:
 462                osd_clear(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
 463                break;
 464        case WIN_VID0:
 465                osd_clear(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
 466                break;
 467        case WIN_OSD1:
 468                /* disable attribute mode as well as disabling the window */
 469                osd_clear(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
 470                          OSD_OSDWIN1MD);
 471                break;
 472        case WIN_VID1:
 473                osd_clear(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
 474                break;
 475        }
 476}
 477
 478static void osd_disable_layer(struct osd_state *sd, enum osd_layer layer)
 479{
 480        struct osd_state *osd = sd;
 481        struct osd_window_state *win = &osd->win[layer];
 482        unsigned long flags;
 483
 484        spin_lock_irqsave(&osd->lock, flags);
 485
 486        if (!win->is_enabled) {
 487                spin_unlock_irqrestore(&osd->lock, flags);
 488                return;
 489        }
 490        win->is_enabled = 0;
 491
 492        _osd_disable_layer(sd, layer);
 493
 494        spin_unlock_irqrestore(&osd->lock, flags);
 495}
 496
 497static void _osd_enable_attribute_mode(struct osd_state *sd)
 498{
 499        /* enable attribute mode for OSD1 */
 500        osd_set(sd, OSD_OSDWIN1MD_OASW, OSD_OSDWIN1MD);
 501}
 502
 503static void _osd_enable_layer(struct osd_state *sd, enum osd_layer layer)
 504{
 505        switch (layer) {
 506        case WIN_OSD0:
 507                osd_set(sd, OSD_OSDWIN0MD_OACT0, OSD_OSDWIN0MD);
 508                break;
 509        case WIN_VID0:
 510                osd_set(sd, OSD_VIDWINMD_ACT0, OSD_VIDWINMD);
 511                break;
 512        case WIN_OSD1:
 513                /* enable OSD1 and disable attribute mode */
 514                osd_modify(sd, OSD_OSDWIN1MD_OASW | OSD_OSDWIN1MD_OACT1,
 515                          OSD_OSDWIN1MD_OACT1, OSD_OSDWIN1MD);
 516                break;
 517        case WIN_VID1:
 518                osd_set(sd, OSD_VIDWINMD_ACT1, OSD_VIDWINMD);
 519                break;
 520        }
 521}
 522
 523static int osd_enable_layer(struct osd_state *sd, enum osd_layer layer,
 524                            int otherwin)
 525{
 526        struct osd_state *osd = sd;
 527        struct osd_window_state *win = &osd->win[layer];
 528        struct osd_layer_config *cfg = &win->lconfig;
 529        unsigned long flags;
 530
 531        spin_lock_irqsave(&osd->lock, flags);
 532
 533        /*
 534         * use otherwin flag to know this is the other vid window
 535         * in YUV420 mode, if is, skip this check
 536         */
 537        if (!otherwin && (!win->is_allocated ||
 538                        !win->fb_base_phys ||
 539                        !cfg->line_length ||
 540                        !cfg->xsize ||
 541                        !cfg->ysize)) {
 542                spin_unlock_irqrestore(&osd->lock, flags);
 543                return -1;
 544        }
 545
 546        if (win->is_enabled) {
 547                spin_unlock_irqrestore(&osd->lock, flags);
 548                return 0;
 549        }
 550        win->is_enabled = 1;
 551
 552        if (cfg->pixfmt != PIXFMT_OSD_ATTR)
 553                _osd_enable_layer(sd, layer);
 554        else {
 555                _osd_enable_attribute_mode(sd);
 556                _osd_set_blink_attribute(sd, osd->is_blinking, osd->blink);
 557        }
 558
 559        spin_unlock_irqrestore(&osd->lock, flags);
 560
 561        return 0;
 562}
 563
 564#define OSD_SRC_ADDR_HIGH4      0x7800000
 565#define OSD_SRC_ADDR_HIGH7      0x7F0000
 566#define OSD_SRCADD_OFSET_SFT    23
 567#define OSD_SRCADD_ADD_SFT      16
 568#define OSD_WINADL_MASK         0xFFFF
 569#define OSD_WINOFST_MASK        0x1000
 570#define VPBE_REG_BASE           0x80000000
 571
 572static void _osd_start_layer(struct osd_state *sd, enum osd_layer layer,
 573                             unsigned long fb_base_phys,
 574                             unsigned long cbcr_ofst)
 575{
 576
 577        if (sd->vpbe_type == VPBE_VERSION_1) {
 578                switch (layer) {
 579                case WIN_OSD0:
 580                        osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN0ADR);
 581                        break;
 582                case WIN_VID0:
 583                        osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN0ADR);
 584                        break;
 585                case WIN_OSD1:
 586                        osd_write(sd, fb_base_phys & ~0x1F, OSD_OSDWIN1ADR);
 587                        break;
 588                case WIN_VID1:
 589                        osd_write(sd, fb_base_phys & ~0x1F, OSD_VIDWIN1ADR);
 590                        break;
 591              }
 592        } else if (sd->vpbe_type == VPBE_VERSION_3) {
 593                unsigned long fb_offset_32 =
 594                    (fb_base_phys - VPBE_REG_BASE) >> 5;
 595
 596                switch (layer) {
 597                case WIN_OSD0:
 598                        osd_modify(sd, OSD_OSDWINADH_O0AH,
 599                                  fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 600                                                   OSD_OSDWINADH_O0AH_SHIFT),
 601                                  OSD_OSDWINADH);
 602                        osd_write(sd, fb_offset_32 & OSD_OSDWIN0ADL_O0AL,
 603                                  OSD_OSDWIN0ADL);
 604                        break;
 605                case WIN_VID0:
 606                        osd_modify(sd, OSD_VIDWINADH_V0AH,
 607                                  fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 608                                                   OSD_VIDWINADH_V0AH_SHIFT),
 609                                  OSD_VIDWINADH);
 610                        osd_write(sd, fb_offset_32 & OSD_VIDWIN0ADL_V0AL,
 611                                  OSD_VIDWIN0ADL);
 612                        break;
 613                case WIN_OSD1:
 614                        osd_modify(sd, OSD_OSDWINADH_O1AH,
 615                                  fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 616                                                   OSD_OSDWINADH_O1AH_SHIFT),
 617                                  OSD_OSDWINADH);
 618                        osd_write(sd, fb_offset_32 & OSD_OSDWIN1ADL_O1AL,
 619                                  OSD_OSDWIN1ADL);
 620                        break;
 621                case WIN_VID1:
 622                        osd_modify(sd, OSD_VIDWINADH_V1AH,
 623                                  fb_offset_32 >> (OSD_SRCADD_ADD_SFT -
 624                                                   OSD_VIDWINADH_V1AH_SHIFT),
 625                                  OSD_VIDWINADH);
 626                        osd_write(sd, fb_offset_32 & OSD_VIDWIN1ADL_V1AL,
 627                                  OSD_VIDWIN1ADL);
 628                        break;
 629                }
 630        } else if (sd->vpbe_type == VPBE_VERSION_2) {
 631                struct osd_window_state *win = &sd->win[layer];
 632                unsigned long fb_offset_32, cbcr_offset_32;
 633
 634                fb_offset_32 = fb_base_phys - VPBE_REG_BASE;
 635                if (cbcr_ofst)
 636                        cbcr_offset_32 = cbcr_ofst;
 637                else
 638                        cbcr_offset_32 = win->lconfig.line_length *
 639                                         win->lconfig.ysize;
 640                cbcr_offset_32 += fb_offset_32;
 641                fb_offset_32 = fb_offset_32 >> 5;
 642                cbcr_offset_32 = cbcr_offset_32 >> 5;
 643                /*
 644                 * DM365: start address is 27-bit long address b26 - b23 are
 645                 * in offset register b12 - b9, and * bit 26 has to be '1'
 646                 */
 647                if (win->lconfig.pixfmt == PIXFMT_NV12) {
 648                        switch (layer) {
 649                        case WIN_VID0:
 650                        case WIN_VID1:
 651                                /* Y is in VID0 */
 652                                osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
 653                                         ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 654                                         (OSD_SRCADD_OFSET_SFT -
 655                                         OSD_WINOFST_AH_SHIFT)) |
 656                                         OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
 657                                osd_modify(sd, OSD_VIDWINADH_V0AH,
 658                                          (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 659                                          (OSD_SRCADD_ADD_SFT -
 660                                          OSD_VIDWINADH_V0AH_SHIFT),
 661                                           OSD_VIDWINADH);
 662                                osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 663                                          OSD_VIDWIN0ADL);
 664                                /* CbCr is in VID1 */
 665                                osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
 666                                         ((cbcr_offset_32 &
 667                                         OSD_SRC_ADDR_HIGH4) >>
 668                                         (OSD_SRCADD_OFSET_SFT -
 669                                         OSD_WINOFST_AH_SHIFT)) |
 670                                         OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
 671                                osd_modify(sd, OSD_VIDWINADH_V1AH,
 672                                          (cbcr_offset_32 &
 673                                          OSD_SRC_ADDR_HIGH7) >>
 674                                          (OSD_SRCADD_ADD_SFT -
 675                                          OSD_VIDWINADH_V1AH_SHIFT),
 676                                          OSD_VIDWINADH);
 677                                osd_write(sd, cbcr_offset_32 & OSD_WINADL_MASK,
 678                                          OSD_VIDWIN1ADL);
 679                                break;
 680                        default:
 681                                break;
 682                        }
 683                }
 684
 685                switch (layer) {
 686                case WIN_OSD0:
 687                        osd_modify(sd, OSD_OSDWIN0OFST_O0AH,
 688                                 ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 689                                 (OSD_SRCADD_OFSET_SFT -
 690                                 OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
 691                                  OSD_OSDWIN0OFST);
 692                        osd_modify(sd, OSD_OSDWINADH_O0AH,
 693                                 (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 694                                 (OSD_SRCADD_ADD_SFT -
 695                                 OSD_OSDWINADH_O0AH_SHIFT), OSD_OSDWINADH);
 696                        osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 697                                        OSD_OSDWIN0ADL);
 698                        break;
 699                case WIN_VID0:
 700                        if (win->lconfig.pixfmt != PIXFMT_NV12) {
 701                                osd_modify(sd, OSD_VIDWIN0OFST_V0AH,
 702                                         ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 703                                         (OSD_SRCADD_OFSET_SFT -
 704                                         OSD_WINOFST_AH_SHIFT)) |
 705                                         OSD_WINOFST_MASK, OSD_VIDWIN0OFST);
 706                                osd_modify(sd, OSD_VIDWINADH_V0AH,
 707                                          (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 708                                          (OSD_SRCADD_ADD_SFT -
 709                                          OSD_VIDWINADH_V0AH_SHIFT),
 710                                          OSD_VIDWINADH);
 711                                osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 712                                          OSD_VIDWIN0ADL);
 713                        }
 714                        break;
 715                case WIN_OSD1:
 716                        osd_modify(sd, OSD_OSDWIN1OFST_O1AH,
 717                                 ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 718                                 (OSD_SRCADD_OFSET_SFT -
 719                                 OSD_WINOFST_AH_SHIFT)) | OSD_WINOFST_MASK,
 720                                  OSD_OSDWIN1OFST);
 721                        osd_modify(sd, OSD_OSDWINADH_O1AH,
 722                                  (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 723                                  (OSD_SRCADD_ADD_SFT -
 724                                  OSD_OSDWINADH_O1AH_SHIFT),
 725                                  OSD_OSDWINADH);
 726                        osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 727                                        OSD_OSDWIN1ADL);
 728                        break;
 729                case WIN_VID1:
 730                        if (win->lconfig.pixfmt != PIXFMT_NV12) {
 731                                osd_modify(sd, OSD_VIDWIN1OFST_V1AH,
 732                                         ((fb_offset_32 & OSD_SRC_ADDR_HIGH4) >>
 733                                         (OSD_SRCADD_OFSET_SFT -
 734                                         OSD_WINOFST_AH_SHIFT)) |
 735                                         OSD_WINOFST_MASK, OSD_VIDWIN1OFST);
 736                                osd_modify(sd, OSD_VIDWINADH_V1AH,
 737                                          (fb_offset_32 & OSD_SRC_ADDR_HIGH7) >>
 738                                          (OSD_SRCADD_ADD_SFT -
 739                                          OSD_VIDWINADH_V1AH_SHIFT),
 740                                          OSD_VIDWINADH);
 741                                osd_write(sd, fb_offset_32 & OSD_WINADL_MASK,
 742                                          OSD_VIDWIN1ADL);
 743                        }
 744                        break;
 745                }
 746        }
 747}
 748
 749static void osd_start_layer(struct osd_state *sd, enum osd_layer layer,
 750                            unsigned long fb_base_phys,
 751                            unsigned long cbcr_ofst)
 752{
 753        struct osd_state *osd = sd;
 754        struct osd_window_state *win = &osd->win[layer];
 755        struct osd_layer_config *cfg = &win->lconfig;
 756        unsigned long flags;
 757
 758        spin_lock_irqsave(&osd->lock, flags);
 759
 760        win->fb_base_phys = fb_base_phys & ~0x1F;
 761        _osd_start_layer(sd, layer, fb_base_phys, cbcr_ofst);
 762
 763        if (layer == WIN_VID0) {
 764                osd->pingpong =
 765                    _osd_dm6446_vid0_pingpong(sd, osd->field_inversion,
 766                                                       win->fb_base_phys,
 767                                                       cfg);
 768        }
 769
 770        spin_unlock_irqrestore(&osd->lock, flags);
 771}
 772
 773static void osd_get_layer_config(struct osd_state *sd, enum osd_layer layer,
 774                                 struct osd_layer_config *lconfig)
 775{
 776        struct osd_state *osd = sd;
 777        struct osd_window_state *win = &osd->win[layer];
 778        unsigned long flags;
 779
 780        spin_lock_irqsave(&osd->lock, flags);
 781
 782        *lconfig = win->lconfig;
 783
 784        spin_unlock_irqrestore(&osd->lock, flags);
 785}
 786
 787/**
 788 * try_layer_config() - Try a specific configuration for the layer
 789 * @sd  - ptr to struct osd_state
 790 * @layer - layer to configure
 791 * @lconfig - layer configuration to try
 792 *
 793 * If the requested lconfig is completely rejected and the value of lconfig on
 794 * exit is the current lconfig, then try_layer_config() returns 1.  Otherwise,
 795 * try_layer_config() returns 0.  A return value of 0 does not necessarily mean
 796 * that the value of lconfig on exit is identical to the value of lconfig on
 797 * entry, but merely that it represents a change from the current lconfig.
 798 */
 799static int try_layer_config(struct osd_state *sd, enum osd_layer layer,
 800                            struct osd_layer_config *lconfig)
 801{
 802        struct osd_state *osd = sd;
 803        struct osd_window_state *win = &osd->win[layer];
 804        int bad_config = 0;
 805
 806        /* verify that the pixel format is compatible with the layer */
 807        switch (lconfig->pixfmt) {
 808        case PIXFMT_1BPP:
 809        case PIXFMT_2BPP:
 810        case PIXFMT_4BPP:
 811        case PIXFMT_8BPP:
 812        case PIXFMT_RGB565:
 813                if (osd->vpbe_type == VPBE_VERSION_1)
 814                        bad_config = !is_vid_win(layer);
 815                break;
 816        case PIXFMT_YCbCrI:
 817        case PIXFMT_YCrCbI:
 818                bad_config = !is_vid_win(layer);
 819                break;
 820        case PIXFMT_RGB888:
 821                if (osd->vpbe_type == VPBE_VERSION_1)
 822                        bad_config = !is_vid_win(layer);
 823                else if ((osd->vpbe_type == VPBE_VERSION_3) ||
 824                         (osd->vpbe_type == VPBE_VERSION_2))
 825                        bad_config = !is_osd_win(layer);
 826                break;
 827        case PIXFMT_NV12:
 828                if (osd->vpbe_type != VPBE_VERSION_2)
 829                        bad_config = 1;
 830                else
 831                        bad_config = is_osd_win(layer);
 832                break;
 833        case PIXFMT_OSD_ATTR:
 834                bad_config = (layer != WIN_OSD1);
 835                break;
 836        default:
 837                bad_config = 1;
 838                break;
 839        }
 840        if (bad_config) {
 841                /*
 842                 * The requested pixel format is incompatible with the layer,
 843                 * so keep the current layer configuration.
 844                 */
 845                *lconfig = win->lconfig;
 846                return bad_config;
 847        }
 848
 849        /* DM6446: */
 850        /* only one OSD window at a time can use RGB pixel formats */
 851          if ((osd->vpbe_type == VPBE_VERSION_1) &&
 852                  is_osd_win(layer) && is_rgb_pixfmt(lconfig->pixfmt)) {
 853                enum osd_pix_format pixfmt;
 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
 913static 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
 925static 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
 946static 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
 959static 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
1234static 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
1374static 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
1438static 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
1460static 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
1479static 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
1494static void osd_set_left_margin(struct osd_state *sd, u32 val)
1495{
1496        osd_write(sd, val, OSD_BASEPX);
1497}
1498
1499static void osd_set_top_margin(struct osd_state *sd, u32 val)
1500{
1501        osd_write(sd, val, OSD_BASEPY);
1502}
1503
1504static 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
1532static 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
1545static 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        int ret = 0;
1551
1552        osd = kzalloc(sizeof(struct osd_state), GFP_KERNEL);
1553        if (osd == NULL)
1554                return -ENOMEM;
1555
1556        pdev_id = platform_get_device_id(pdev);
1557        if (!pdev_id) {
1558                ret = -EINVAL;
1559                goto free_mem;
1560        }
1561
1562        osd->dev = &pdev->dev;
1563        osd->vpbe_type = pdev_id->driver_data;
1564
1565        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1566        if (!res) {
1567                dev_err(osd->dev, "Unable to get OSD register address map\n");
1568                ret = -ENODEV;
1569                goto free_mem;
1570        }
1571        osd->osd_base_phys = res->start;
1572        osd->osd_size = resource_size(res);
1573        if (!request_mem_region(osd->osd_base_phys, osd->osd_size,
1574                                MODULE_NAME)) {
1575                dev_err(osd->dev, "Unable to reserve OSD MMIO region\n");
1576                ret = -ENODEV;
1577                goto free_mem;
1578        }
1579        osd->osd_base = ioremap_nocache(res->start, osd->osd_size);
1580        if (!osd->osd_base) {
1581                dev_err(osd->dev, "Unable to map the OSD region\n");
1582                ret = -ENODEV;
1583                goto release_mem_region;
1584        }
1585        spin_lock_init(&osd->lock);
1586        osd->ops = osd_ops;
1587        platform_set_drvdata(pdev, osd);
1588        dev_notice(osd->dev, "OSD sub device probe success\n");
1589        return ret;
1590
1591release_mem_region:
1592        release_mem_region(osd->osd_base_phys, osd->osd_size);
1593free_mem:
1594        kfree(osd);
1595        return ret;
1596}
1597
1598static int osd_remove(struct platform_device *pdev)
1599{
1600        struct osd_state *osd = platform_get_drvdata(pdev);
1601
1602        iounmap((void *)osd->osd_base);
1603        release_mem_region(osd->osd_base_phys, osd->osd_size);
1604        kfree(osd);
1605        return 0;
1606}
1607
1608static struct platform_driver osd_driver = {
1609        .probe          = osd_probe,
1610        .remove         = osd_remove,
1611        .driver         = {
1612                .name   = MODULE_NAME,
1613                .owner  = THIS_MODULE,
1614        },
1615        .id_table       = vpbe_osd_devtype
1616};
1617
1618module_platform_driver(osd_driver);
1619
1620MODULE_LICENSE("GPL");
1621MODULE_DESCRIPTION("DaVinci OSD Manager Driver");
1622MODULE_AUTHOR("Texas Instruments");
1623