git.oblomov.eu Git - linux-2.6/blob - drivers/video/ps3fb.c

   1 /*
   2  *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
   3  *
   4  *      Copyright (C) 2006 Sony Computer Entertainment Inc.
   5  *      Copyright 2006, 2007 Sony Corporation
   6  *
   7  *  This file is based on :
   8  *
   9  *  linux/drivers/video/vfb.c -- Virtual frame buffer device
  10  *
  11  *      Copyright (C) 2002 James Simmons
  12  *
  13  *      Copyright (C) 1997 Geert Uytterhoeven
  14  *
  15  *  This file is subject to the terms and conditions of the GNU General Public
  16  *  License. See the file COPYING in the main directory of this archive for
  17  *  more details.
  18  */
  19
  20 #include <linux/module.h>
  21 #include <linux/kernel.h>
  22 #include <linux/errno.h>
  23 #include <linux/string.h>
  24 #include <linux/mm.h>
  25 #include <linux/tty.h>
  26 #include <linux/slab.h>
  27 #include <linux/vmalloc.h>
  28 #include <linux/delay.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/platform_device.h>
  31 #include <linux/console.h>
  32 #include <linux/ioctl.h>
  33 #include <linux/notifier.h>
  34 #include <linux/reboot.h>
  35 #include <linux/kthread.h>
  36 #include <linux/freezer.h>
  37
  38 #include <asm/uaccess.h>
  39 #include <linux/fb.h>
  40 #include <linux/init.h>
  41 #include <asm/time.h>
  42
  43 #include <asm/abs_addr.h>
  44 #include <asm/lv1call.h>
  45 #include <asm/ps3av.h>
  46 #include <asm/ps3fb.h>
  47 #include <asm/ps3.h>
  48
  49 #ifdef PS3FB_DEBUG
  50 #define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ##args)
  51 #else
  52 #define DPRINTK(fmt, args...)
  53 #endif
  54
  55 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC    0x101
  56 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP    0x102
  57 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP        0x600
  58 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT         0x601
  59 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC    0x602
  60
  61 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION       (1ULL << 32)
  62
  63 #define L1GPU_DISPLAY_SYNC_HSYNC                1
  64 #define L1GPU_DISPLAY_SYNC_VSYNC                2
  65
  66 #define DDR_SIZE                                (0)     /* used no ddr */
  67 #define GPU_OFFSET                              (64 * 1024)
  68 #define GPU_IOIF                                (0x0d000000UL)
  69
  70 #define PS3FB_FULL_MODE_BIT                     0x80
  71
  72 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  73 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  74 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  75 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  76 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  77 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  78
  79 #define GPU_DRIVER_INFO_VERSION                 0x211
  80
  81 /* gpu internals */
  82 struct display_head {
  83         u64 be_time_stamp;
  84         u32 status;
  85         u32 offset;
  86         u32 res1;
  87         u32 res2;
  88         u32 field;
  89         u32 reserved1;
  90
  91         u64 res3;
  92         u32 raster;
  93
  94         u64 vblank_count;
  95         u32 field_vsync;
  96         u32 reserved2;
  97 };
  98
  99 struct gpu_irq {
 100         u32 irq_outlet;
 101         u32 status;
 102         u32 mask;
 103         u32 video_cause;
 104         u32 graph_cause;
 105         u32 user_cause;
 106
 107         u32 res1;
 108         u64 res2;
 109
 110         u32 reserved[4];
 111 };
 112
 113 struct gpu_driver_info {
 114         u32 version_driver;
 115         u32 version_gpu;
 116         u32 memory_size;
 117         u32 hardware_channel;
 118
 119         u32 nvcore_frequency;
 120         u32 memory_frequency;
 121
 122         u32 reserved[1063];
 123         struct display_head display_head[8];
 124         struct gpu_irq irq;
 125 };
 126
 127 struct ps3fb_priv {
 128         unsigned int irq_no;
 129         void *dev;
 130
 131         u64 context_handle, memory_handle;
 132         void *xdr_ea;
 133         struct gpu_driver_info *dinfo;
 134         u32 res_index;
 135
 136         u64 vblank_count;       /* frame count */
 137         wait_queue_head_t wait_vsync;
 138
 139         u32 num_frames;         /* num of frame buffers */
 140         atomic_t ext_flip;      /* on/off flip with vsync */
 141         atomic_t f_count;       /* fb_open count */
 142         int is_blanked;
 143         int is_kicked;
 144         struct task_struct *task;
 145 };
 146 static struct ps3fb_priv ps3fb;
 147
 148 struct ps3fb_res_table {
 149         u32 xres;
 150         u32 yres;
 151         u32 xoff;
 152         u32 yoff;
 153         u32 type;
 154 };
 155 #define PS3FB_RES_FULL 1
 156 static const struct ps3fb_res_table ps3fb_res[] = {
 157         /* res_x,y   margin_x,y  full */
 158         {  720,  480,  72,  48 , 0},
 159         {  720,  576,  72,  58 , 0},
 160         { 1280,  720,  78,  38 , 0},
 161         { 1920, 1080, 116,  58 , 0},
 162         /* full mode */
 163         {  720,  480,   0,   0 , PS3FB_RES_FULL},
 164         {  720,  576,   0,   0 , PS3FB_RES_FULL},
 165         { 1280,  720,   0,   0 , PS3FB_RES_FULL},
 166         { 1920, 1080,   0,   0 , PS3FB_RES_FULL},
 167         /* vesa: normally full mode */
 168         { 1280,  768,   0,   0 , 0},
 169         { 1280, 1024,   0,   0 , 0},
 170         { 1920, 1200,   0,   0 , 0},
 171         {    0,    0,   0,   0 , 0} };
 172
 173 /* default resolution */
 174 #define GPU_RES_INDEX 0         /* 720 x 480 */
 175
 176 static const struct fb_videomode ps3fb_modedb[] = {
 177     /* 60 Hz broadcast modes (modes "1" to "5") */
 178     {
 179         /* 480i */
 180         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 181         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 182     },    {
 183         /* 480p */
 184         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 185         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 186     },    {
 187         /* 720p */
 188         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 189         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 190     },    {
 191         /* 1080i */
 192         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 193         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 194     },    {
 195         /* 1080p */
 196         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 197         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 198     },
 199
 200     /* 50 Hz broadcast modes (modes "6" to "10") */
 201     {
 202         /* 576i */
 203         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 204         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 205     },    {
 206         /* 576p */
 207         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 208         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 209     },    {
 210         /* 720p */
 211         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 212         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 213     },    {
 214         /* 1080 */
 215         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 216         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 217     },    {
 218         /* 1080p */
 219         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 220         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 221     },
 222
 223     /* VESA modes (modes "11" to "13") */
 224     {
 225         /* WXGA */
 226         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 227         0, FB_VMODE_NONINTERLACED,
 228         FB_MODE_IS_VESA
 229     }, {
 230         /* SXGA */
 231         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 232         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 233         FB_MODE_IS_VESA
 234     }, {
 235         /* WUXGA */
 236         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 237         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 238         FB_MODE_IS_VESA
 239     },
 240
 241     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 242     {
 243         /* 480if */
 244         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 245         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 246     }, {
 247         /* 480pf */
 248         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 249         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 250     }, {
 251         /* 720pf */
 252         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 253         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 254     }, {
 255         /* 1080if */
 256         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 257         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 258     }, {
 259         /* 1080pf */
 260         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 261         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 262     },
 263
 264     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 265     {
 266         /* 576if */
 267         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 268         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 269     }, {
 270         /* 576pf */
 271         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 272         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 273     }, {
 274         /* 720pf */
 275         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 276         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 277     }, {
 278         /* 1080if */
 279         "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 280         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 281     }, {
 282         /* 1080pf */
 283         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 284         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 285     }
 286 };
 287
 288
 289 #define HEAD_A
 290 #define HEAD_B
 291
 292 #define X_OFF(i)        (ps3fb_res[i].xoff)     /* left/right margin (pixel) */
 293 #define Y_OFF(i)        (ps3fb_res[i].yoff)     /* top/bottom margin (pixel) */
 294 #define WIDTH(i)        (ps3fb_res[i].xres)     /* width of FB */
 295 #define HEIGHT(i)       (ps3fb_res[i].yres)     /* height of FB */
 296 #define BPP     4               /* number of bytes per pixel */
 297 #define VP_OFF(i)       (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
 298 #define FB_OFF(i)       (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
 299
 300 static int ps3fb_mode;
 301 module_param(ps3fb_mode, bool, 0);
 302
 303 static char *mode_option __initdata;
 304
 305
 306 static int ps3fb_get_res_table(u32 xres, u32 yres)
 307 {
 308         int full_mode;
 309         unsigned int i;
 310         u32 x, y, f;
 311
 312         full_mode = (ps3fb_mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
 313         for (i = 0;; i++) {
 314                 x = ps3fb_res[i].xres;
 315                 y = ps3fb_res[i].yres;
 316                 f = ps3fb_res[i].type;
 317
 318                 if (!x) {
 319                         DPRINTK("ERROR: ps3fb_get_res_table()\n");
 320                         return -1;
 321                 }
 322
 323                 if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
 324                         continue;
 325
 326                 if (x == xres && (yres == 0 || y == yres))
 327                         break;
 328
 329                 x = x - 2 * ps3fb_res[i].xoff;
 330                 y = y - 2 * ps3fb_res[i].yoff;
 331                 if (x == xres && (yres == 0 || y == yres))
 332                         break;
 333         }
 334         return i;
 335 }
 336
 337 static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
 338                                     u32 *line_length)
 339 {
 340         unsigned int i, mode;
 341
 342         for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
 343                 if (var->xres == ps3fb_modedb[i].xres &&
 344                     var->yres == ps3fb_modedb[i].yres &&
 345                     var->pixclock == ps3fb_modedb[i].pixclock &&
 346                     var->hsync_len == ps3fb_modedb[i].hsync_len &&
 347                     var->vsync_len == ps3fb_modedb[i].vsync_len &&
 348                     var->left_margin == ps3fb_modedb[i].left_margin &&
 349                     var->right_margin == ps3fb_modedb[i].right_margin &&
 350                     var->upper_margin == ps3fb_modedb[i].upper_margin &&
 351                     var->lower_margin == ps3fb_modedb[i].lower_margin &&
 352                     var->sync == ps3fb_modedb[i].sync &&
 353                     (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {
 354                         /* Cropped broadcast modes use the full line_length */
 355                         *line_length =
 356                             ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;
 357                         /* Full broadcast modes have the full mode bit set */
 358                         mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
 359
 360                         DPRINTK("ps3fb_find_mode: mode %u\n", mode);
 361                         return mode;
 362                 }
 363
 364         DPRINTK("ps3fb_find_mode: mode not found\n");
 365         return 0;
 366
 367 }
 368
 369 static const struct fb_videomode *ps3fb_default_mode(void)
 370 {
 371         u32 mode = ps3fb_mode & PS3AV_MODE_MASK;
 372         u32 flags;
 373
 374         if (mode < 1 || mode > 13)
 375                 return NULL;
 376
 377         flags = ps3fb_mode & ~PS3AV_MODE_MASK;
 378
 379         if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
 380                 /* Full broadcast mode */
 381                 return &ps3fb_modedb[mode + 12];
 382         }
 383
 384         return &ps3fb_modedb[mode - 1];
 385 }
 386
 387 static int ps3fb_sync(u32 frame)
 388 {
 389         int i, status;
 390         u32 xres, yres;
 391         u64 fb_ioif, offset;
 392
 393         i = ps3fb.res_index;
 394         xres = ps3fb_res[i].xres;
 395         yres = ps3fb_res[i].yres;
 396
 397         if (frame > ps3fb.num_frames - 1) {
 398                 printk(KERN_WARNING "%s: invalid frame number (%u)\n",
 399                        __func__, frame);
 400                 return -EINVAL;
 401         }
 402         offset = xres * yres * BPP * frame;
 403
 404         fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
 405         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 406                                            L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
 407                                            offset, fb_ioif,
 408                                            L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 409                                            (xres << 16) | yres,
 410                                            xres * BPP); /* line_length */
 411         if (status)
 412                 printk(KERN_ERR
 413                        "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
 414                        __func__, status);
 415 #ifdef HEAD_A
 416         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 417                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 418                                            0, offset, 0, 0);
 419         if (status)
 420                 printk(KERN_ERR
 421                        "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 422                        __func__, status);
 423 #endif
 424 #ifdef HEAD_B
 425         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 426                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
 427                                            1, offset, 0, 0);
 428         if (status)
 429                 printk(KERN_ERR
 430                        "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
 431                        __func__, status);
 432 #endif
 433         return 0;
 434 }
 435
 436
 437 static int ps3fb_open(struct fb_info *info, int user)
 438 {
 439         atomic_inc(&ps3fb.f_count);
 440         return 0;
 441 }
 442
 443 static int ps3fb_release(struct fb_info *info, int user)
 444 {
 445         if (atomic_dec_and_test(&ps3fb.f_count)) {
 446                 if (atomic_read(&ps3fb.ext_flip)) {
 447                         atomic_set(&ps3fb.ext_flip, 0);
 448                         ps3fb_sync(0);  /* single buffer */
 449                 }
 450         }
 451         return 0;
 452 }
 453
 454     /*
 455      *  Setting the video mode has been split into two parts.
 456      *  First part, xxxfb_check_var, must not write anything
 457      *  to hardware, it should only verify and adjust var.
 458      *  This means it doesn't alter par but it does use hardware
 459      *  data from it to check this var.
 460      */
 461
 462 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 463 {
 464         u32 line_length;
 465         int mode;
 466         int i;
 467
 468         DPRINTK("var->xres:%u info->var.xres:%u\n", var->xres, info->var.xres);
 469         DPRINTK("var->yres:%u info->var.yres:%u\n", var->yres, info->var.yres);
 470
 471         /* FIXME For now we do exact matches only */
 472         mode = ps3fb_find_mode(var, &line_length);
 473         if (!mode)
 474                 return -EINVAL;
 475
 476         /*
 477          *  FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
 478          *  as FB_VMODE_SMOOTH_XPAN is only used internally
 479          */
 480
 481         if (var->vmode & FB_VMODE_CONUPDATE) {
 482                 var->vmode |= FB_VMODE_YWRAP;
 483                 var->xoffset = info->var.xoffset;
 484                 var->yoffset = info->var.yoffset;
 485         }
 486
 487         /* Virtual screen and panning are not supported */
 488         if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
 489             var->xoffset || var->yoffset) {
 490                 DPRINTK("Virtual screen and panning are not supported\n");
 491                 return -EINVAL;
 492         }
 493
 494         var->xres_virtual = var->xres;
 495         var->yres_virtual = var->yres;
 496
 497         /* We support ARGB8888 only */
 498         if (var->bits_per_pixel > 32 || var->grayscale ||
 499             var->red.offset > 16 || var->green.offset > 8 ||
 500             var->blue.offset > 0 || var->transp.offset > 24 ||
 501             var->red.length > 8 || var->green.length > 8 ||
 502             var->blue.length > 8 || var->transp.length > 8 ||
 503             var->red.msb_right || var->green.msb_right ||
 504             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 505                 DPRINTK("We support ARGB8888 only\n");
 506                 return -EINVAL;
 507         }
 508
 509         var->bits_per_pixel = 32;
 510         var->red.offset = 16;
 511         var->green.offset = 8;
 512         var->blue.offset = 0;
 513         var->transp.offset = 24;
 514         var->red.length = 8;
 515         var->green.length = 8;
 516         var->blue.length = 8;
 517         var->transp.length = 8;
 518         var->red.msb_right = 0;
 519         var->green.msb_right = 0;
 520         var->blue.msb_right = 0;
 521         var->transp.msb_right = 0;
 522
 523         /* Rotation is not supported */
 524         if (var->rotate) {
 525                 DPRINTK("Rotation is not supported\n");
 526                 return -EINVAL;
 527         }
 528
 529         /* Memory limit */
 530         i = ps3fb_get_res_table(var->xres, var->yres);
 531         if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
 532                 DPRINTK("Not enough memory\n");
 533                 return -ENOMEM;
 534         }
 535
 536         var->height = -1;
 537         var->width = -1;
 538
 539         return 0;
 540 }
 541
 542     /*
 543      * This routine actually sets the video mode.
 544      */
 545
 546 static int ps3fb_set_par(struct fb_info *info)
 547 {
 548         unsigned int mode;
 549         int i;
 550         unsigned long offset;
 551         static int first = 1;
 552
 553         DPRINTK("xres:%d xv:%d yres:%d yv:%d clock:%d\n",
 554                 info->var.xres, info->var.xres_virtual,
 555                 info->var.yres, info->var.yres_virtual, info->var.pixclock);
 556         i = ps3fb_get_res_table(info->var.xres, info->var.yres);
 557         ps3fb.res_index = i;
 558
 559         mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
 560         if (!mode)
 561                 return -EINVAL;
 562
 563         offset = FB_OFF(i) + VP_OFF(i);
 564         info->fix.smem_len = ps3fb_videomemory.size - offset;
 565         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
 566         memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
 567
 568         ps3fb.num_frames = ps3fb_videomemory.size/
 569                            (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
 570
 571         /* Keep the special bits we cannot set using fb_var_screeninfo */
 572         ps3fb_mode = (ps3fb_mode & ~PS3AV_MODE_MASK) | mode;
 573
 574         if (ps3av_set_video_mode(ps3fb_mode, first))
 575                 return -EINVAL;
 576
 577         first = 0;
 578         return 0;
 579 }
 580
 581     /*
 582      *  Set a single color register. The values supplied are already
 583      *  rounded down to the hardware's capabilities (according to the
 584      *  entries in the var structure). Return != 0 for invalid regno.
 585      */
 586
 587 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 588                            unsigned int green, unsigned int blue,
 589                            unsigned int transp, struct fb_info *info)
 590 {
 591         if (regno >= 16)
 592                 return 1;
 593
 594         red >>= 8;
 595         green >>= 8;
 596         blue >>= 8;
 597         transp >>= 8;
 598
 599         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 600                                                green << 8 | blue;
 601         return 0;
 602 }
 603
 604     /*
 605      *  As we have a virtual frame buffer, we need our own mmap function
 606      */
 607
 608 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 609 {
 610         unsigned long size, offset;
 611         int i;
 612
 613         i = ps3fb_get_res_table(info->var.xres, info->var.yres);
 614         if (i == -1)
 615                 return -EINVAL;
 616
 617         size = vma->vm_end - vma->vm_start;
 618         offset = vma->vm_pgoff << PAGE_SHIFT;
 619         if (offset + size > info->fix.smem_len)
 620                 return -EINVAL;
 621
 622         offset += info->fix.smem_start + FB_OFF(i) + VP_OFF(i);
 623         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 624                             size, vma->vm_page_prot))
 625                 return -EAGAIN;
 626
 627         printk(KERN_DEBUG "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", offset,
 628                vma->vm_start);
 629         return 0;
 630 }
 631
 632     /*
 633      * Blank the display
 634      */
 635
 636 static int ps3fb_blank(int blank, struct fb_info *info)
 637 {
 638         int retval;
 639
 640         DPRINTK("%s: blank:%d\n", __func__, blank);
 641         switch (blank) {
 642         case FB_BLANK_POWERDOWN:
 643         case FB_BLANK_HSYNC_SUSPEND:
 644         case FB_BLANK_VSYNC_SUSPEND:
 645         case FB_BLANK_NORMAL:
 646                 retval = ps3av_video_mute(1);   /* mute on */
 647                 if (!retval)
 648                         ps3fb.is_blanked = 1;
 649                 break;
 650
 651         default:                /* unblank */
 652                 retval = ps3av_video_mute(0);   /* mute off */
 653                 if (!retval)
 654                         ps3fb.is_blanked = 0;
 655                 break;
 656         }
 657         return retval;
 658 }
 659
 660 static int ps3fb_get_vblank(struct fb_vblank *vblank)
 661 {
 662         memset(vblank, 0, sizeof(&vblank));
 663         vblank->flags = FB_VBLANK_HAVE_VSYNC;
 664         return 0;
 665 }
 666
 667 int ps3fb_wait_for_vsync(u32 crtc)
 668 {
 669         int ret;
 670         u64 count;
 671
 672         count = ps3fb.vblank_count;
 673         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 674                                                count != ps3fb.vblank_count,
 675                                                HZ / 10);
 676         if (!ret)
 677                 return -ETIMEDOUT;
 678
 679         return 0;
 680 }
 681
 682 EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
 683
 684 void ps3fb_flip_ctl(int on)
 685 {
 686         if (on)
 687                 atomic_dec_if_positive(&ps3fb.ext_flip);
 688         else
 689                 atomic_inc(&ps3fb.ext_flip);
 690 }
 691
 692 EXPORT_SYMBOL_GPL(ps3fb_flip_ctl);
 693
 694     /*
 695      * ioctl
 696      */
 697
 698 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 699                        unsigned long arg)
 700 {
 701         void __user *argp = (void __user *)arg;
 702         u32 val, old_mode;
 703         int retval = -EFAULT;
 704
 705         switch (cmd) {
 706         case FBIOGET_VBLANK:
 707                 {
 708                         struct fb_vblank vblank;
 709                         DPRINTK("FBIOGET_VBLANK:\n");
 710                         retval = ps3fb_get_vblank(&vblank);
 711                         if (retval)
 712                                 break;
 713
 714                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
 715                                 retval = -EFAULT;
 716                         break;
 717                 }
 718
 719         case FBIO_WAITFORVSYNC:
 720                 {
 721                         u32 crt;
 722                         DPRINTK("FBIO_WAITFORVSYNC:\n");
 723                         if (get_user(crt, (u32 __user *) arg))
 724                                 break;
 725
 726                         retval = ps3fb_wait_for_vsync(crt);
 727                         break;
 728                 }
 729
 730         case PS3FB_IOCTL_SETMODE:
 731                 {
 732                         const struct fb_videomode *mode;
 733                         struct fb_var_screeninfo var;
 734
 735                         if (copy_from_user(&val, argp, sizeof(val)))
 736                                 break;
 737
 738                         if (!(val & PS3AV_MODE_MASK)) {
 739                                 u32 id = ps3av_get_auto_mode(0);
 740                                 if (id > 0)
 741                                         val = (val & ~PS3AV_MODE_MASK) | id;
 742                         }
 743                         DPRINTK("PS3FB_IOCTL_SETMODE:%x\n", val);
 744                         retval = -EINVAL;
 745                         old_mode = ps3fb_mode;
 746                         ps3fb_mode = val;
 747                         mode = ps3fb_default_mode();
 748                         if (mode) {
 749                                 var = info->var;
 750                                 fb_videomode_to_var(&var, mode);
 751                                 acquire_console_sem();
 752                                 info->flags |= FBINFO_MISC_USEREVENT;
 753                                 /* Force, in case only special bits changed */
 754                                 var.activate |= FB_ACTIVATE_FORCE;
 755                                 retval = fb_set_var(info, &var);
 756                                 info->flags &= ~FBINFO_MISC_USEREVENT;
 757                                 release_console_sem();
 758                         }
 759                         if (retval)
 760                                 ps3fb_mode = old_mode;
 761                         break;
 762                 }
 763
 764         case PS3FB_IOCTL_GETMODE:
 765                 val = ps3av_get_mode();
 766                 DPRINTK("PS3FB_IOCTL_GETMODE:%x\n", val);
 767                 if (!copy_to_user(argp, &val, sizeof(val)))
 768                         retval = 0;
 769                 break;
 770
 771         case PS3FB_IOCTL_SCREENINFO:
 772                 {
 773                         struct ps3fb_ioctl_res res;
 774                         int i = ps3fb.res_index;
 775                         DPRINTK("PS3FB_IOCTL_SCREENINFO:\n");
 776                         res.xres = ps3fb_res[i].xres;
 777                         res.yres = ps3fb_res[i].yres;
 778                         res.xoff = ps3fb_res[i].xoff;
 779                         res.yoff = ps3fb_res[i].yoff;
 780                         res.num_frames = ps3fb.num_frames;
 781                         if (!copy_to_user(argp, &res, sizeof(res)))
 782                                 retval = 0;
 783                         break;
 784                 }
 785
 786         case PS3FB_IOCTL_ON:
 787                 DPRINTK("PS3FB_IOCTL_ON:\n");
 788                 atomic_inc(&ps3fb.ext_flip);
 789                 retval = 0;
 790                 break;
 791
 792         case PS3FB_IOCTL_OFF:
 793                 DPRINTK("PS3FB_IOCTL_OFF:\n");
 794                 atomic_dec_if_positive(&ps3fb.ext_flip);
 795                 retval = 0;
 796                 break;
 797
 798         case PS3FB_IOCTL_FSEL:
 799                 if (copy_from_user(&val, argp, sizeof(val)))
 800                         break;
 801
 802                 DPRINTK("PS3FB_IOCTL_FSEL:%d\n", val);
 803                 retval = ps3fb_sync(val);
 804                 break;
 805
 806         default:
 807                 retval = -ENOIOCTLCMD;
 808                 break;
 809         }
 810         return retval;
 811 }
 812
 813 static int ps3fbd(void *arg)
 814 {
 815         while (!kthread_should_stop()) {
 816                 try_to_freeze();
 817                 set_current_state(TASK_INTERRUPTIBLE);
 818                 if (ps3fb.is_kicked) {
 819                         ps3fb.is_kicked = 0;
 820                         ps3fb_sync(0);  /* single buffer */
 821                 }
 822                 schedule();
 823         }
 824         return 0;
 825 }
 826
 827 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 828 {
 829         u64 v1;
 830         int status;
 831         struct display_head *head = &ps3fb.dinfo->display_head[1];
 832
 833         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 834         if (status) {
 835                 printk(KERN_ERR "%s: lv1_gpu_context_intr failed: %d\n",
 836                        __func__, status);
 837                 return IRQ_NONE;
 838         }
 839
 840         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 841                 /* VSYNC */
 842                 ps3fb.vblank_count = head->vblank_count;
 843                 if (ps3fb.task && !ps3fb.is_blanked &&
 844                     !atomic_read(&ps3fb.ext_flip)) {
 845                         ps3fb.is_kicked = 1;
 846                         wake_up_process(ps3fb.task);
 847                 }
 848                 wake_up_interruptible(&ps3fb.wait_vsync);
 849         }
 850
 851         return IRQ_HANDLED;
 852 }
 853
 854 #ifndef MODULE
 855 static int __init ps3fb_setup(char *options)
 856 {
 857         char *this_opt;
 858         int mode = 0;
 859
 860         if (!options || !*options)
 861                 return 0;       /* no options */
 862
 863         while ((this_opt = strsep(&options, ",")) != NULL) {
 864                 if (!*this_opt)
 865                         continue;
 866                 if (!strncmp(this_opt, "mode:", 5))
 867                         mode = simple_strtoul(this_opt + 5, NULL, 0);
 868                 else
 869                         mode_option = this_opt;
 870         }
 871         return mode;
 872 }
 873 #endif  /* MODULE */
 874
 875     /*
 876      *  Initialisation
 877      */
 878
 879 static void ps3fb_platform_release(struct device *device)
 880 {
 881         /* This is called when the reference count goes to zero. */
 882 }
 883
 884 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
 885 {
 886         int error;
 887
 888         DPRINTK("version_driver:%x\n", dinfo->version_driver);
 889         DPRINTK("irq outlet:%x\n", dinfo->irq.irq_outlet);
 890         DPRINTK("version_gpu:%x memory_size:%x ch:%x core_freq:%d mem_freq:%d\n",
 891                 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
 892                 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
 893
 894         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
 895                 printk(KERN_ERR "%s: version_driver err:%x\n", __func__,
 896                        dinfo->version_driver);
 897                 return -EINVAL;
 898         }
 899
 900         ps3fb.dev = dev;
 901         error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
 902                                    &ps3fb.irq_no);
 903         if (error) {
 904                 printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __func__,
 905                        error);
 906                 return error;
 907         }
 908
 909         error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
 910                             "ps3fb vsync", ps3fb.dev);
 911         if (error) {
 912                 printk(KERN_ERR "%s: request_irq failed %d\n", __func__,
 913                        error);
 914                 ps3_irq_plug_destroy(ps3fb.irq_no);
 915                 return error;
 916         }
 917
 918         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
 919                           (1 << GPU_INTR_STATUS_FLIP_1);
 920         return 0;
 921 }
 922
 923 static int ps3fb_xdr_settings(u64 xdr_lpar)
 924 {
 925         int status;
 926
 927         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
 928                                        xdr_lpar, ps3fb_videomemory.size, 0);
 929         if (status) {
 930                 printk(KERN_ERR "%s: lv1_gpu_context_iomap failed: %d\n",
 931                        __func__, status);
 932                 return -ENXIO;
 933         }
 934         DPRINTK("video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
 935                 ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
 936                 virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
 937
 938         status = lv1_gpu_context_attribute(ps3fb.context_handle,
 939                                            L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
 940                                            xdr_lpar, ps3fb_videomemory.size,
 941                                            GPU_IOIF, 0);
 942         if (status) {
 943                 printk(KERN_ERR
 944                        "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
 945                        __func__, status);
 946                 return -ENXIO;
 947         }
 948         return 0;
 949 }
 950
 951 static struct fb_ops ps3fb_ops = {
 952         .fb_open        = ps3fb_open,
 953         .fb_release     = ps3fb_release,
 954         .fb_check_var   = ps3fb_check_var,
 955         .fb_set_par     = ps3fb_set_par,
 956         .fb_setcolreg   = ps3fb_setcolreg,
 957         .fb_fillrect    = cfb_fillrect,
 958         .fb_copyarea    = cfb_copyarea,
 959         .fb_imageblit   = cfb_imageblit,
 960         .fb_mmap        = ps3fb_mmap,
 961         .fb_blank       = ps3fb_blank,
 962         .fb_ioctl       = ps3fb_ioctl,
 963         .fb_compat_ioctl = ps3fb_ioctl
 964 };
 965
 966 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
 967         .id =           "PS3 FB",
 968         .type =         FB_TYPE_PACKED_PIXELS,
 969         .visual =       FB_VISUAL_TRUECOLOR,
 970         .accel =        FB_ACCEL_NONE,
 971 };
 972
 973 static int __init ps3fb_probe(struct platform_device *dev)
 974 {
 975         struct fb_info *info;
 976         int retval = -ENOMEM;
 977         u64 ddr_lpar = 0;
 978         u64 lpar_dma_control = 0;
 979         u64 lpar_driver_info = 0;
 980         u64 lpar_reports = 0;
 981         u64 lpar_reports_size = 0;
 982         u64 xdr_lpar;
 983         int status;
 984         unsigned long offset;
 985         struct task_struct *task;
 986
 987         /* get gpu context handle */
 988         status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
 989                                          &ps3fb.memory_handle, &ddr_lpar);
 990         if (status) {
 991                 printk(KERN_ERR "%s: lv1_gpu_memory_allocate failed: %d\n",
 992                        __func__, status);
 993                 goto err;
 994         }
 995         DPRINTK("ddr:lpar:0x%lx\n", ddr_lpar);
 996
 997         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
 998                                           &ps3fb.context_handle,
 999                                           &lpar_dma_control, &lpar_driver_info,
1000                                           &lpar_reports, &lpar_reports_size);
1001         if (status) {
1002                 printk(KERN_ERR "%s: lv1_gpu_context_attribute failed: %d\n",
1003                        __func__, status);
1004                 goto err_gpu_memory_free;
1005         }
1006
1007         /* vsync interrupt */
1008         ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1009         if (!ps3fb.dinfo) {
1010                 printk(KERN_ERR "%s: ioremap failed\n", __func__);
1011                 goto err_gpu_context_free;
1012         }
1013
1014         retval = ps3fb_vsync_settings(ps3fb.dinfo, dev);
1015         if (retval)
1016                 goto err_iounmap_dinfo;
1017
1018         /* xdr frame buffer */
1019         ps3fb.xdr_ea = ps3fb_videomemory.address;
1020         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1021         retval = ps3fb_xdr_settings(xdr_lpar);
1022         if (retval)
1023                 goto err_free_irq;
1024
1025         /*
1026          * ps3fb must clear memory to prevent kernel info
1027          * leakage into userspace
1028          */
1029         memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1030         info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
1031         if (!info)
1032                 goto err_free_irq;
1033
1034         offset = FB_OFF(ps3fb.res_index) + VP_OFF(ps3fb.res_index);
1035         info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
1036         info->fbops = &ps3fb_ops;
1037
1038         info->fix = ps3fb_fix;
1039         info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
1040         info->fix.smem_len = ps3fb_videomemory.size - offset;
1041         info->pseudo_palette = info->par;
1042         info->par = NULL;
1043         info->flags = FBINFO_FLAG_DEFAULT;
1044
1045         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1046         if (retval < 0)
1047                 goto err_framebuffer_release;
1048
1049         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1050                           ARRAY_SIZE(ps3fb_modedb), ps3fb_default_mode(), 32)) {
1051                 retval = -EINVAL;
1052                 goto err_fb_dealloc;
1053         }
1054
1055         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1056                                  &info->modelist);
1057
1058         retval = register_framebuffer(info);
1059         if (retval < 0)
1060                 goto err_fb_dealloc;
1061
1062         platform_set_drvdata(dev, info);
1063
1064         printk(KERN_INFO
1065                "fb%d: PS3 frame buffer device, using %ld KiB of video memory\n",
1066                info->node, ps3fb_videomemory.size >> 10);
1067
1068         task = kthread_run(ps3fbd, info, "ps3fbd");
1069         if (IS_ERR(task)) {
1070                 retval = PTR_ERR(task);
1071                 goto err_unregister_framebuffer;
1072         }
1073
1074         ps3fb.task = task;
1075
1076         return 0;
1077
1078 err_unregister_framebuffer:
1079         unregister_framebuffer(info);
1080 err_fb_dealloc:
1081         fb_dealloc_cmap(&info->cmap);
1082 err_framebuffer_release:
1083         framebuffer_release(info);
1084 err_free_irq:
1085         free_irq(ps3fb.irq_no, ps3fb.dev);
1086         ps3_irq_plug_destroy(ps3fb.irq_no);
1087 err_iounmap_dinfo:
1088         iounmap((u8 __iomem *)ps3fb.dinfo);
1089 err_gpu_context_free:
1090         lv1_gpu_context_free(ps3fb.context_handle);
1091 err_gpu_memory_free:
1092         lv1_gpu_memory_free(ps3fb.memory_handle);
1093 err:
1094         return retval;
1095 }
1096
1097 static void ps3fb_shutdown(struct platform_device *dev)
1098 {
1099         ps3fb_flip_ctl(0);      /* flip off */
1100         ps3fb.dinfo->irq.mask = 0;
1101         free_irq(ps3fb.irq_no, ps3fb.dev);
1102         ps3_irq_plug_destroy(ps3fb.irq_no);
1103         iounmap((u8 __iomem *)ps3fb.dinfo);
1104 }
1105
1106 void ps3fb_cleanup(void)
1107 {
1108         int status;
1109
1110         if (ps3fb.task) {
1111                 struct task_struct *task = ps3fb.task;
1112                 ps3fb.task = NULL;
1113                 kthread_stop(task);
1114         }
1115         if (ps3fb.irq_no) {
1116                 free_irq(ps3fb.irq_no, ps3fb.dev);
1117                 ps3_irq_plug_destroy(ps3fb.irq_no);
1118         }
1119         iounmap((u8 __iomem *)ps3fb.dinfo);
1120
1121         status = lv1_gpu_context_free(ps3fb.context_handle);
1122         if (status)
1123                 DPRINTK("lv1_gpu_context_free failed: %d\n", status);
1124
1125         status = lv1_gpu_memory_free(ps3fb.memory_handle);
1126         if (status)
1127                 DPRINTK("lv1_gpu_memory_free failed: %d\n", status);
1128
1129         ps3av_dev_close();
1130 }
1131
1132 EXPORT_SYMBOL_GPL(ps3fb_cleanup);
1133
1134 static int ps3fb_remove(struct platform_device *dev)
1135 {
1136         struct fb_info *info = platform_get_drvdata(dev);
1137
1138         if (info) {
1139                 unregister_framebuffer(info);
1140                 fb_dealloc_cmap(&info->cmap);
1141                 framebuffer_release(info);
1142         }
1143         ps3fb_cleanup();
1144         return 0;
1145 }
1146
1147 static struct platform_driver ps3fb_driver = {
1148         .probe  = ps3fb_probe,
1149         .remove = ps3fb_remove,
1150         .shutdown = ps3fb_shutdown,
1151         .driver = { .name = "ps3fb" }
1152 };
1153
1154 static struct platform_device ps3fb_device = {
1155         .name   = "ps3fb",
1156         .id     = 0,
1157         .dev    = { .release = ps3fb_platform_release }
1158 };
1159
1160 int ps3fb_set_sync(void)
1161 {
1162         int status;
1163
1164 #ifdef HEAD_A
1165         status = lv1_gpu_context_attribute(0x0,
1166                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1167                                            0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1168         if (status) {
1169                 printk(KERN_ERR
1170                        "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: %d\n",
1171                        __func__, status);
1172                 return -1;
1173         }
1174 #endif
1175 #ifdef HEAD_B
1176         status = lv1_gpu_context_attribute(0x0,
1177                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1178                                            1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
1179
1180         if (status) {
1181                 printk(KERN_ERR
1182                        "%s: lv1_gpu_context_attribute DISPLAY_MODE failed: %d\n",
1183                        __func__, status);
1184                 return -1;
1185         }
1186 #endif
1187         return 0;
1188 }
1189
1190 EXPORT_SYMBOL_GPL(ps3fb_set_sync);
1191
1192 static int __init ps3fb_init(void)
1193 {
1194         int error;
1195 #ifndef MODULE
1196         int mode;
1197         char *option = NULL;
1198
1199         if (fb_get_options("ps3fb", &option))
1200                 goto err;
1201 #endif
1202
1203         if (!ps3fb_videomemory.address)
1204                 goto err;
1205
1206         error = ps3av_dev_open();
1207         if (error) {
1208                 printk(KERN_ERR "%s: ps3av_dev_open failed\n", __func__);
1209                 goto err;
1210         }
1211
1212         ps3fb_mode = ps3av_get_mode();
1213         DPRINTK("ps3av_mode:%d\n", ps3fb_mode);
1214 #ifndef MODULE
1215         mode = ps3fb_setup(option);     /* check boot option */
1216         if (mode)
1217                 ps3fb_mode = mode;
1218 #endif
1219         if (ps3fb_mode > 0) {
1220                 u32 xres, yres;
1221                 ps3av_video_mode2res(ps3fb_mode, &xres, &yres);
1222                 ps3fb.res_index = ps3fb_get_res_table(xres, yres);
1223                 DPRINTK("res_index:%d\n", ps3fb.res_index);
1224         } else
1225                 ps3fb.res_index = GPU_RES_INDEX;
1226
1227         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1228         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1229         init_waitqueue_head(&ps3fb.wait_vsync);
1230         ps3fb.num_frames = 1;
1231
1232         error = platform_driver_register(&ps3fb_driver);
1233         if (!error) {
1234                 error = platform_device_register(&ps3fb_device);
1235                 if (error)
1236                         platform_driver_unregister(&ps3fb_driver);
1237         }
1238
1239         ps3fb_set_sync();
1240
1241         return error;
1242
1243 err:
1244         return -ENXIO;
1245 }
1246
1247 module_init(ps3fb_init);
1248
1249 #ifdef MODULE
1250 static void __exit ps3fb_exit(void)
1251 {
1252         platform_device_unregister(&ps3fb_device);
1253         platform_driver_unregister(&ps3fb_driver);
1254 }
1255
1256 module_exit(ps3fb_exit);
1257
1258 MODULE_LICENSE("GPL");
1259 #endif                          /* MODULE */