target/linux/xburst/patches-2.6.35/440-metronome.patch

   1 From c62dfb5d44444dd3add45e10c8950140dcb9f421 Mon Sep 17 00:00:00 2001
   2 From: Lars-Peter Clausen <lars@metafoo.de>
   3 Date: Wed, 12 May 2010 14:24:46 +0200
   4 Subject: [PATCH] metronome patches
   5
   6 ---
   7  drivers/video/metronomefb.c |  788 +++++++++++++++++++++++++++++++++++++------
   8  include/video/metronomefb.h |   33 ++-
   9  2 files changed, 710 insertions(+), 111 deletions(-)
  10
  11 --- a/drivers/video/metronomefb.c
  12 +++ b/drivers/video/metronomefb.c
  13 @@ -18,11 +18,13 @@
  14   * is provided as am200epd.c
  15   *
  16   */
  17 +
  18  #include <linux/module.h>
  19  #include <linux/kernel.h>
  20  #include <linux/errno.h>
  21  #include <linux/string.h>
  22  #include <linux/mm.h>
  23 +#include <linux/slab.h>
  24  #include <linux/vmalloc.h>
  25  #include <linux/delay.h>
  26  #include <linux/interrupt.h>
  27 @@ -34,16 +36,25 @@
  28  #include <linux/dma-mapping.h>
  29  #include <linux/uaccess.h>
  30  #include <linux/irq.h>
  31 +#include <linux/ctype.h>
  32
  33  #include <video/metronomefb.h>
  34
  35  #include <asm/unaligned.h>
  36
  37 -/* Display specific information */
  38 -#define DPY_W 832
  39 -#define DPY_H 622
  40 +/*
  41 + * 12 is ok to avoid refreshing whole screen while small elements are changed,
  42 + * while forcing full refresh if largish dialog boxes or menus are
  43 + * shown/dismissed.
  44 + */
  45 +#define DEFAULT_MANUAL_REFRESH_THRESHOLD 12
  46 +
  47 +#define WF_MODE_INIT   0 /* Initialization */
  48 +#define WF_MODE_MU     1 /* Monochrome update */
  49 +#define WF_MODE_GU     2 /* Grayscale update */
  50 +#define WF_MODE_GC     3 /* Grayscale clearing */
  51
  52 -static int user_wfm_size;
  53 +static int temp = 25;
  54
  55  /* frame differs from image. frame includes non-visible pixels */
  56  struct epd_frame {
  57 @@ -53,7 +64,7 @@ struct epd_frame {
  58         int wfm_size;
  59  };
  60
  61 -static struct epd_frame epd_frame_table[] = {
  62 +static const struct epd_frame epd_frame_table[] = {
  63         {
  64                 .fw = 832,
  65                 .fh = 622,
  66 @@ -97,24 +108,40 @@ static struct epd_frame epd_frame_table[
  67                 },
  68                 .wfm_size = 46770,
  69         },
  70 +       {
  71 +               .fw = 800,
  72 +               .fh = 600,
  73 +               .config = {
  74 +                       15 /* sdlew */
  75 +                       | 2 << 8 /* sdosz */
  76 +                       | 0 << 11 /* sdor */
  77 +                       | 0 << 12 /* sdces */
  78 +                       | 0 << 15, /* sdcer */
  79 +                       42 /* gdspl */
  80 +                       | 1 << 8 /* gdr1 */
  81 +                       | 1 << 9 /* sdshr */
  82 +                       | 0 << 15, /* gdspp */
  83 +                       18 /* gdspw */
  84 +                       | 0 << 15, /* dispc */
  85 +                       599 /* vdlc */
  86 +                       | 0 << 11 /* dsi */
  87 +                       | 0 << 12, /* dsic */
  88 +               },
  89 +               .wfm_size = 46901,
  90 +       },
  91  };
  92
  93 -static struct fb_fix_screeninfo metronomefb_fix __devinitdata = {
  94 +static const struct fb_fix_screeninfo metronomefb_fix __devinitconst = {
  95         .id =           "metronomefb",
  96         .type =         FB_TYPE_PACKED_PIXELS,
  97         .visual =       FB_VISUAL_STATIC_PSEUDOCOLOR,
  98         .xpanstep =     0,
  99         .ypanstep =     0,
 100         .ywrapstep =    0,
 101 -       .line_length =  DPY_W,
 102         .accel =        FB_ACCEL_NONE,
 103  };
 104
 105 -static struct fb_var_screeninfo metronomefb_var __devinitdata = {
 106 -       .xres           = DPY_W,
 107 -       .yres           = DPY_H,
 108 -       .xres_virtual   = DPY_W,
 109 -       .yres_virtual   = DPY_H,
 110 +static const struct fb_var_screeninfo metronomefb_var __devinitconst = {
 111         .bits_per_pixel = 8,
 112         .grayscale      = 1,
 113         .nonstd         = 1,
 114 @@ -167,7 +194,7 @@ static u16 calc_img_cksum(u16 *start, in
 115  }
 116
 117  /* here we decode the incoming waveform file and populate metromem */
 118 -static int __devinit load_waveform(u8 *mem, size_t size, int m, int t,
 119 +static int load_waveform(u8 *mem, size_t size, int m, int t,
 120                                 struct metronomefb_par *par)
 121  {
 122         int tta;
 123 @@ -181,16 +208,12 @@ static int __devinit load_waveform(u8 *m
 124         int mem_idx = 0;
 125         struct waveform_hdr *wfm_hdr;
 126         u8 *metromem = par->metromem_wfm;
 127 -       struct device *dev = par->info->dev;
 128 +       struct device *dev = &par->pdev->dev;
 129 +       u8 mc, trc;
 130 +       u16 *p;
 131 +       u16 img_cksum;
 132
 133 -       if (user_wfm_size)
 134 -               epd_frame_table[par->dt].wfm_size = user_wfm_size;
 135 -
 136 -       if (size != epd_frame_table[par->dt].wfm_size) {
 137 -               dev_err(dev, "Error: unexpected size %Zd != %d\n", size,
 138 -                                       epd_frame_table[par->dt].wfm_size);
 139 -               return -EINVAL;
 140 -       }
 141 +       dev_dbg(dev, "Loading waveforms, mode %d, temperature %d\n", m, t);
 142
 143         wfm_hdr = (struct waveform_hdr *) mem;
 144
 145 @@ -208,8 +231,9 @@ static int __devinit load_waveform(u8 *m
 146                                         wfm_hdr->wfm_cs);
 147                 return -EINVAL;
 148         }
 149 -       wfm_hdr->mc += 1;
 150 -       wfm_hdr->trc += 1;
 151 +       mc = wfm_hdr->mc + 1;
 152 +       trc = wfm_hdr->trc + 1;
 153 +
 154         for (i = 0; i < 5; i++) {
 155                 if (*(wfm_hdr->stuff2a + i) != 0) {
 156                         dev_err(dev, "Error: unexpected value in padding\n");
 157 @@ -221,10 +245,10 @@ static int __devinit load_waveform(u8 *m
 158         the waveform. presumably selecting the right one for the
 159         desired temperature. it works out the offset of the first
 160         v that exceeds the specified temperature */
 161 -       if ((sizeof(*wfm_hdr) + wfm_hdr->trc) > size)
 162 +       if ((sizeof(*wfm_hdr) + trc) > size)
 163                 return -EINVAL;
 164
 165 -       for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + wfm_hdr->trc; i++) {
 166 +       for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + trc; i++) {
 167                 if (mem[i] > t) {
 168                         trn = i - sizeof(*wfm_hdr) - 1;
 169                         break;
 170 @@ -232,7 +256,7 @@ static int __devinit load_waveform(u8 *m
 171         }
 172
 173         /* check temperature range table checksum */
 174 -       cksum_idx = sizeof(*wfm_hdr) + wfm_hdr->trc + 1;
 175 +       cksum_idx = sizeof(*wfm_hdr) + trc + 1;
 176         if (cksum_idx > size)
 177                 return -EINVAL;
 178         cksum = calc_cksum(sizeof(*wfm_hdr), cksum_idx, mem);
 179 @@ -294,6 +318,7 @@ static int __devinit load_waveform(u8 *m
 180         cksum_idx = wfm_idx;
 181         if (cksum_idx > size)
 182                 return -EINVAL;
 183 +       dev_dbg(dev, "mem_idx = %u\n", mem_idx);
 184         cksum = calc_cksum(owfm_idx, cksum_idx, mem);
 185         if (cksum != mem[cksum_idx]) {
 186                 dev_err(dev, "Error: bad waveform data cksum"
 187 @@ -302,16 +327,47 @@ static int __devinit load_waveform(u8 *m
 188         }
 189         par->frame_count = (mem_idx/64);
 190
 191 +       p = (u16 *)par->metromem_wfm;
 192 +       img_cksum = calc_img_cksum(p, 16384 / 2);
 193 +       p[16384 / 2] = __cpu_to_le16(img_cksum);
 194 +
 195 +       par->current_wf_mode = m;
 196 +       par->current_wf_temp = t;
 197 +
 198         return 0;
 199  }
 200
 201 +static int check_err(struct metronomefb_par *par)
 202 +{
 203 +       int res;
 204 +
 205 +       res = par->board->get_err(par);
 206 +       dev_dbg(&par->pdev->dev, "ERR = %d\n", res);
 207 +       return res;
 208 +}
 209 +
 210 +static inline int wait_for_rdy(struct metronomefb_par *par)
 211 +{
 212 +       int res = 0;
 213 +
 214 +       if (!par->board->get_rdy(par))
 215 +               res = par->board->met_wait_event_intr(par);
 216 +
 217 +       return res;
 218 +}
 219 +
 220  static int metronome_display_cmd(struct metronomefb_par *par)
 221  {
 222         int i;
 223         u16 cs;
 224         u16 opcode;
 225 -       static u8 borderval;
 226 +       int res;
 227
 228 +       res = wait_for_rdy(par);
 229 +       if (res)
 230 +               return res;
 231 +
 232 +       dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 233         /* setup display command
 234         we can't immediately set the opcode since the controller
 235         will try parse the command before we've set it all up
 236 @@ -324,8 +380,9 @@ static int metronome_display_cmd(struct
 237
 238         /* set the args ( 2 bytes ) for display */
 239         i = 0;
 240 -       par->metromem_cmd->args[i] =    1 << 3 /* border update */
 241 -                                       | ((borderval++ % 4) & 0x0F) << 4
 242 +       par->metromem_cmd->args[i] =    0 << 3 /* border update */
 243 +                                       | (3 << 4)
 244 +//                                     | ((borderval++ % 4) & 0x0F) << 4
 245                                         | (par->frame_count - 1) << 8;
 246         cs += par->metromem_cmd->args[i++];
 247
 248 @@ -335,21 +392,25 @@ static int metronome_display_cmd(struct
 249         par->metromem_cmd->csum = cs;
 250         par->metromem_cmd->opcode = opcode; /* display cmd */
 251
 252 -       return par->board->met_wait_event_intr(par);
 253 +       return 0;
 254 +
 255  }
 256
 257  static int __devinit metronome_powerup_cmd(struct metronomefb_par *par)
 258  {
 259         int i;
 260         u16 cs;
 261 +       int res;
 262
 263 +       dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 264         /* setup power up command */
 265         par->metromem_cmd->opcode = 0x1234; /* pwr up pseudo cmd */
 266         cs = par->metromem_cmd->opcode;
 267
 268         /* set pwr1,2,3 to 1024 */
 269         for (i = 0; i < 3; i++) {
 270 -               par->metromem_cmd->args[i] = 1024;
 271 +//             par->metromem_cmd->args[i] = 1024;
 272 +               par->metromem_cmd->args[i] = 100;
 273                 cs += par->metromem_cmd->args[i];
 274         }
 275
 276 @@ -364,7 +425,9 @@ static int __devinit metronome_powerup_c
 277         msleep(1);
 278         par->board->set_stdby(par, 1);
 279
 280 -       return par->board->met_wait_event(par);
 281 +       res = par->board->met_wait_event(par);
 282 +       dev_dbg(&par->pdev->dev, "%s: EXIT: %d\n", __func__, res);
 283 +       return res;
 284  }
 285
 286  static int __devinit metronome_config_cmd(struct metronomefb_par *par)
 287 @@ -373,8 +436,9 @@ static int __devinit metronome_config_cm
 288         we can't immediately set the opcode since the controller
 289         will try parse the command before we've set it all up */
 290
 291 -       memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
 292 -               sizeof(epd_frame_table[par->dt].config));
 293 +       dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 294 +       memcpy(par->metromem_cmd->args, par->epd_frame->config,
 295 +               sizeof(par->epd_frame->config));
 296         /* the rest are 0 */
 297         memset((u8 *) (par->metromem_cmd->args + 4), 0, (32-4)*2);
 298
 299 @@ -395,11 +459,12 @@ static int __devinit metronome_init_cmd(
 300         will try parse the command before we've set it all up
 301         so we just set cs here and set the opcode at the end */
 302
 303 +       dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 304         cs = 0xCC20;
 305
 306         /* set the args ( 2 bytes ) for init */
 307         i = 0;
 308 -       par->metromem_cmd->args[i] = 0;
 309 +       par->metromem_cmd->args[i] = 0x0007;
 310         cs += par->metromem_cmd->args[i++];
 311
 312         /* the rest are 0 */
 313 @@ -411,76 +476,268 @@ static int __devinit metronome_init_cmd(
 314         return par->board->met_wait_event(par);
 315  }
 316
 317 -static int __devinit metronome_init_regs(struct metronomefb_par *par)
 318 +static int metronome_bootup(struct metronomefb_par *par)
 319  {
 320         int res;
 321
 322 -       res = par->board->setup_io(par);
 323 -       if (res)
 324 -               return res;
 325 -
 326         res = metronome_powerup_cmd(par);
 327 -       if (res)
 328 -               return res;
 329 +       if (res) {
 330 +               dev_err(&par->pdev->dev, "metronomefb: POWERUP cmd failed\n");
 331 +               goto finish;
 332 +       }
 333
 334 +       check_err(par);
 335         res = metronome_config_cmd(par);
 336 -       if (res)
 337 -               return res;
 338 +       if (res) {
 339 +               dev_err(&par->pdev->dev, "metronomefb: CONFIG cmd failed\n");
 340 +               goto finish;
 341 +       }
 342 +       check_err(par);
 343
 344         res = metronome_init_cmd(par);
 345 +       if (res)
 346 +               dev_err(&par->pdev->dev, "metronomefb: INIT cmd failed\n");
 347 +       check_err(par);
 348 +
 349 +finish:
 350 +       return res;
 351 +}
 352 +
 353 +static int __devinit metronome_init_regs(struct metronomefb_par *par)
 354 +{
 355 +       int res;
 356 +
 357 +       if (par->board->power_ctl)
 358 +               par->board->power_ctl(par, METRONOME_POWER_ON);
 359 +
 360 +       res =  metronome_bootup(par);
 361
 362         return res;
 363  }
 364
 365 -static void metronomefb_dpy_update(struct metronomefb_par *par)
 366 +static uint16_t metronomefb_update_img_buffer_rotated(struct metronomefb_par *par)
 367  {
 368 -       int fbsize;
 369 -       u16 cksum;
 370 -       unsigned char *buf = (unsigned char __force *)par->info->screen_base;
 371 +       int x, y;
 372 +       int xstep, ystep;
 373 +       int i, j;
 374 +       uint16_t cksum = 0;
 375 +       uint8_t *buf = par->info->screen_base;
 376 +       uint32_t *img = (uint32_t *)(par->metromem_img);
 377 +       int fw = par->epd_frame->fw;
 378 +       int fh = par->epd_frame->fh;
 379 +       int fw_buf = fw / 4;
 380 +       uint32_t *fxbuckets = par->fxbuckets;
 381 +       uint32_t *fybuckets = par->fybuckets;
 382 +       uint32_t diff;
 383 +       uint32_t tmp;
 384 +
 385 +       switch (par->rotation) {
 386 +       case FB_ROTATE_CW:
 387 +               xstep = -fh;
 388 +               ystep = fw * fh + 1;
 389 +               j = (fw - 1) * fh;
 390 +               break;
 391 +       case FB_ROTATE_UD:
 392 +               xstep = -1;
 393 +               ystep = 0;
 394 +               j = fw * fh - 1;
 395 +               break;
 396 +       case FB_ROTATE_CCW:
 397 +               xstep = fh;
 398 +               ystep = -fw * fh - 1;
 399 +               j = fh - 1;
 400 +               break;
 401 +       default:
 402 +               BUG();
 403 +               break;
 404 +       }
 405
 406 -       fbsize = par->info->fix.smem_len;
 407 -       /* copy from vm to metromem */
 408 -       memcpy(par->metromem_img, buf, fbsize);
 409 +       memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
 410 +       memset(fybuckets, 0, fh * sizeof(*fybuckets));
 411 +
 412 +       i = 0;
 413 +       for (y = 0; y < fh; y++) {
 414 +               for(x = 0; x < fw_buf; x++, i++) {
 415 +                       tmp = (buf[j] << 5);
 416 +                       j += xstep;
 417 +                       tmp |= (buf[j] << 13);
 418 +                       j += xstep;
 419 +                       tmp |= (buf[j] << 21);
 420 +                       j += xstep;
 421 +                       tmp |= (buf[j] << 29);
 422 +                       j += xstep;
 423 +                       tmp &= 0xe0e0e0e0;
 424 +
 425 +                       img[i] &= 0xf0f0f0f0;
 426 +                       diff = img[i] ^ tmp;
 427 +
 428 +                       fxbuckets[x] |= diff;
 429 +                       fybuckets[y] |= diff;
 430 +
 431 +                       img[i] = (img[i] >> 4) | tmp;
 432 +                       cksum += img[i] & 0x0000ffff;
 433 +                       cksum += (img[i] >> 16);
 434
 435 -       cksum = calc_img_cksum((u16 *) par->metromem_img, fbsize/2);
 436 -       *((u16 *)(par->metromem_img) + fbsize/2) = cksum;
 437 -       metronome_display_cmd(par);
 438 +               }
 439 +               j += ystep;
 440 +       }
 441 +
 442 +       return cksum;
 443  }
 444
 445 -static u16 metronomefb_dpy_update_page(struct metronomefb_par *par, int index)
 446 +static uint16_t metronomefb_update_img_buffer_normal(struct metronomefb_par *par)
 447  {
 448 -       int i;
 449 -       u16 csum = 0;
 450 -       u16 *buf = (u16 __force *)(par->info->screen_base + index);
 451 -       u16 *img = (u16 *)(par->metromem_img + index);
 452 -
 453 -       /* swizzle from vm to metromem and recalc cksum at the same time*/
 454 -       for (i = 0; i < PAGE_SIZE/2; i++) {
 455 -               *(img + i) = (buf[i] << 5) & 0xE0E0;
 456 -               csum += *(img + i);
 457 +       int x, y, i;
 458 +       uint16_t cksum = 0;
 459 +       uint32_t *buf = (uint32_t __force *)par->info->screen_base;
 460 +       uint32_t *img = (uint32_t *)(par->metromem_img);
 461 +       uint32_t diff;
 462 +       uint32_t tmp;
 463 +       int fw = par->epd_frame->fw;
 464 +       int fh = par->epd_frame->fh;
 465 +       int fw_buf = fw / sizeof(*buf);
 466 +       uint32_t *fxbuckets = par->fxbuckets;
 467 +       uint32_t *fybuckets = par->fybuckets;
 468 +
 469 +       memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
 470 +       memset(fybuckets, 0, fh * sizeof(*fybuckets));
 471 +
 472 +       i = 0;
 473 +       for (y = 0; y < fh; y++) {
 474 +               for(x = 0; x < fw_buf; x++, i++) {
 475 +                       tmp = (buf[i] << 5) & 0xe0e0e0e0;
 476 +                       img[i] &= 0xf0f0f0f0;
 477 +                       diff = img[i] ^ tmp;
 478 +
 479 +                       fxbuckets[x] |= diff;
 480 +                       fybuckets[y] |= diff;
 481 +
 482 +                       img[i] = (img[i] >> 4) | tmp;
 483 +                       cksum += img[i] & 0x0000ffff;
 484 +                       cksum += (img[i] >> 16);
 485 +               }
 486         }
 487 -       return csum;
 488 +
 489 +       return cksum;
 490 +}
 491 +
 492 +static unsigned int metronomefb_get_change_count(struct metronomefb_par *par)
 493 +{
 494 +       int min_x;
 495 +       int max_x;
 496 +       int min_y;
 497 +       int max_y;
 498 +       int fw = par->epd_frame->fw / 4;
 499 +       int fh = par->epd_frame->fh;
 500 +       unsigned int change_count;
 501 +       uint32_t *fxbuckets = par->fxbuckets;
 502 +       uint32_t *fybuckets = par->fybuckets;
 503 +
 504 +       for (min_x = 0; min_x < fw; ++min_x) {
 505 +               if(fxbuckets[min_x])
 506 +                       break;
 507 +       }
 508 +
 509 +       for (max_x = fw - 1; max_x >= 0; --max_x) {
 510 +               if(fxbuckets[max_x])
 511 +                       break;
 512 +       }
 513 +
 514 +       for (min_y = 0; min_y < fh; min_y++) {
 515 +               if(fybuckets[min_y])
 516 +                       break;
 517 +       }
 518 +
 519 +       for (max_y = fh - 1; max_y >= 0; --max_y) {
 520 +               if(fybuckets[max_y])
 521 +                       break;
 522 +       }
 523 +
 524 +       if ((min_x > max_x) || (min_y > max_y))
 525 +               change_count = 0;
 526 +       else
 527 +               change_count = (max_x - min_x + 1) * (max_y - min_y + 1) * 4;
 528 +
 529 +       dev_dbg(&par->pdev->dev, "min_x = %d, max_x = %d, min_y = %d, max_y = %d\n",
 530 +                       min_x, max_x, min_y, max_y);
 531 +
 532 +       return change_count;
 533 +}
 534 +
 535 +static void metronomefb_dpy_update(struct metronomefb_par *par, int clear_all)
 536 +{
 537 +       unsigned int fbsize = par->info->fix.smem_len;
 538 +       uint16_t cksum;
 539 +       int m;
 540 +
 541 +       wait_for_rdy(par);
 542 +
 543 +       if (par->rotation == 0)
 544 +               cksum = metronomefb_update_img_buffer_normal(par);
 545 +       else
 546 +               cksum = metronomefb_update_img_buffer_rotated(par);
 547 +
 548 +       *par->metromem_img_csum = __cpu_to_le16(cksum);
 549 +
 550 +       if (clear_all || par->is_first_update ||
 551 +               (par->partial_updates_count == par->partial_autorefresh_interval)) {
 552 +               m = WF_MODE_GC;
 553 +               par->partial_updates_count = 0;
 554 +       } else {
 555 +               int change_count = metronomefb_get_change_count(par);
 556 +               if (change_count < fbsize / 100 * par->manual_refresh_threshold)
 557 +                       m = WF_MODE_GU;
 558 +               else
 559 +                       m = WF_MODE_GC;
 560 +
 561 +               dev_dbg(&par->pdev->dev, "change_count = %u, treshold = %u%% (%u pixels)\n",
 562 +                               change_count, par->manual_refresh_threshold,
 563 +                               fbsize / 100 * par->manual_refresh_threshold);
 564 +               ++par->partial_updates_count;
 565 +       }
 566 +
 567 +       if (m != par->current_wf_mode)
 568 +               load_waveform((u8 *) par->firmware->data, par->firmware->size,
 569 +                               m, par->current_wf_temp, par);
 570 +
 571 +       for (;;) {
 572 +               if (likely(!check_err(par))) {
 573 +                       metronome_display_cmd(par);
 574 +                       break;
 575 +               }
 576 +
 577 +               par->board->set_stdby(par, 0);
 578 +               dev_warn(&par->pdev->dev, "Resetting Metronome\n");
 579 +               par->board->set_rst(par, 0);
 580 +               mdelay(1);
 581 +               if (par->board->power_ctl)
 582 +                       par->board->power_ctl(par, METRONOME_POWER_OFF);
 583 +
 584 +               mdelay(1);
 585 +               load_waveform((u8 *) par->firmware->data, par->firmware->size,
 586 +                               WF_MODE_GC, par->current_wf_temp, par);
 587 +
 588 +               if (par->board->power_ctl)
 589 +                       par->board->power_ctl(par, METRONOME_POWER_ON);
 590 +               metronome_bootup(par);
 591 +       }
 592 +
 593 +       par->is_first_update = 0;
 594  }
 595
 596  /* this is called back from the deferred io workqueue */
 597  static void metronomefb_dpy_deferred_io(struct fb_info *info,
 598                                 struct list_head *pagelist)
 599  {
 600 -       u16 cksum;
 601 -       struct page *cur;
 602 -       struct fb_deferred_io *fbdefio = info->fbdefio;
 603         struct metronomefb_par *par = info->par;
 604
 605 -       /* walk the written page list and swizzle the data */
 606 -       list_for_each_entry(cur, &fbdefio->pagelist, lru) {
 607 -               cksum = metronomefb_dpy_update_page(par,
 608 -                                       (cur->index << PAGE_SHIFT));
 609 -               par->metromem_img_csum -= par->csum_table[cur->index];
 610 -               par->csum_table[cur->index] = cksum;
 611 -               par->metromem_img_csum += cksum;
 612 -       }
 613 -
 614 -       metronome_display_cmd(par);
 615 +       /* We will update entire display because we need to change
 616 +        * 'previous image' field in pixels which was changed at
 617 +        * previous refresh
 618 +        */
 619 +       mutex_lock(&par->lock);
 620 +       metronomefb_dpy_update(par, 0);
 621 +       mutex_unlock(&par->lock);
 622  }
 623
 624  static void metronomefb_fillrect(struct fb_info *info,
 625 @@ -488,8 +745,10 @@ static void metronomefb_fillrect(struct
 626  {
 627         struct metronomefb_par *par = info->par;
 628
 629 +       mutex_lock(&par->lock);
 630         sys_fillrect(info, rect);
 631 -       metronomefb_dpy_update(par);
 632 +       metronomefb_dpy_update(par, 0);
 633 +       mutex_unlock(&par->lock);
 634  }
 635
 636  static void metronomefb_copyarea(struct fb_info *info,
 637 @@ -497,8 +756,10 @@ static void metronomefb_copyarea(struct
 638  {
 639         struct metronomefb_par *par = info->par;
 640
 641 +       mutex_lock(&par->lock);
 642         sys_copyarea(info, area);
 643 -       metronomefb_dpy_update(par);
 644 +       metronomefb_dpy_update(par, 0);
 645 +       mutex_unlock(&par->lock);
 646  }
 647
 648  static void metronomefb_imageblit(struct fb_info *info,
 649 @@ -506,8 +767,10 @@ static void metronomefb_imageblit(struct
 650  {
 651         struct metronomefb_par *par = info->par;
 652
 653 +       mutex_lock(&par->lock);
 654         sys_imageblit(info, image);
 655 -       metronomefb_dpy_update(par);
 656 +       metronomefb_dpy_update(par, 0);
 657 +       mutex_unlock(&par->lock);
 658  }
 659
 660  /*
 661 @@ -545,30 +808,229 @@ static ssize_t metronomefb_write(struct
 662
 663         dst = (void __force *)(info->screen_base + p);
 664
 665 +       mutex_lock(&par->lock);
 666 +
 667         if (copy_from_user(dst, buf, count))
 668                 err = -EFAULT;
 669
 670         if  (!err)
 671                 *ppos += count;
 672
 673 -       metronomefb_dpy_update(par);
 674 +       metronomefb_dpy_update(par, 0);
 675 +       mutex_unlock(&par->lock);
 676
 677         return (err) ? err : count;
 678  }
 679
 680 +static int metronome_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 681 +{
 682 +       struct metronomefb_par *par = info->par;
 683 +
 684 +       var->grayscale = 1;
 685 +
 686 +       switch (par->rotation) {
 687 +       case FB_ROTATE_CW:
 688 +       case FB_ROTATE_CCW:
 689 +               if (par->epd_frame->fw == var->yres && par->epd_frame->fh == var->xres)
 690 +                       return 0;
 691 +               break;
 692 +       case FB_ROTATE_UD:
 693 +       default:
 694 +               if (par->epd_frame->fw == var->xres && par->epd_frame->fh == var->yres)
 695 +                       return 0;
 696 +               break;
 697 +       }
 698 +
 699 +       return -EINVAL;
 700 +}
 701 +
 702 +static int metronomefb_set_par(struct fb_info *info)
 703 +{
 704 +       struct metronomefb_par *par = info->par;
 705 +
 706 +       par->rotation = (par->board->panel_rotation + info->var.rotate) % 4;
 707 +
 708 +       switch (par->rotation) {
 709 +       case FB_ROTATE_CW:
 710 +       case FB_ROTATE_CCW:
 711 +               info->fix.line_length = par->epd_frame->fh;
 712 +               break;
 713 +       case FB_ROTATE_UD:
 714 +       default:
 715 +               info->fix.line_length = par->epd_frame->fw;
 716 +               break;
 717 +       }
 718 +
 719 +       mutex_lock(&par->lock);
 720 +       metronomefb_dpy_update(info->par, 1);
 721 +       mutex_unlock(&par->lock);
 722 +
 723 +       return 0;
 724 +}
 725 +
 726  static struct fb_ops metronomefb_ops = {
 727         .owner          = THIS_MODULE,
 728         .fb_write       = metronomefb_write,
 729         .fb_fillrect    = metronomefb_fillrect,
 730         .fb_copyarea    = metronomefb_copyarea,
 731         .fb_imageblit   = metronomefb_imageblit,
 732 +       .fb_check_var   = metronome_check_var,
 733 +       .fb_set_par     = metronomefb_set_par,
 734  };
 735
 736  static struct fb_deferred_io metronomefb_defio = {
 737 -       .delay          = HZ,
 738 +       .delay          = HZ / 4,
 739         .deferred_io    = metronomefb_dpy_deferred_io,
 740  };
 741
 742 +static ssize_t metronomefb_defio_delay_show(struct device *dev,
 743 +               struct device_attribute *attr, char *buf)
 744 +{
 745 +       struct fb_info *info = dev_get_drvdata(dev);
 746 +
 747 +       sprintf(buf, "%lu\n", info->fbdefio->delay * 1000 / HZ);
 748 +       return strlen(buf) + 1;
 749 +}
 750 +
 751 +static ssize_t metronomefb_defio_delay_store(struct device *dev,
 752 +               struct device_attribute *attr, const char *buf, size_t size)
 753 +{
 754 +       struct fb_info *info = dev_get_drvdata(dev);
 755 +       char *after;
 756 +       unsigned long state = simple_strtoul(buf, &after, 10);
 757 +       size_t count = after - buf;
 758 +       ssize_t ret = -EINVAL;
 759 +
 760 +       if (*after && isspace(*after))
 761 +               count++;
 762 +
 763 +       state = state * HZ / 1000;
 764 +
 765 +       if (!state)
 766 +               state = 1;
 767 +
 768 +       if (count == size) {
 769 +               ret = count;
 770 +               info->fbdefio->delay = state;
 771 +       }
 772 +
 773 +       return ret;
 774 +}
 775 +
 776 +static ssize_t metronomefb_manual_refresh_thr_show(struct device *dev,
 777 +               struct device_attribute *attr, char *buf)
 778 +{
 779 +       struct fb_info *info = dev_get_drvdata(dev);
 780 +       struct metronomefb_par *par = info->par;
 781 +
 782 +       return sprintf(buf, "%u\n", par->manual_refresh_threshold);
 783 +}
 784 +
 785 +static ssize_t metronomefb_manual_refresh_thr_store(struct device *dev,
 786 +               struct device_attribute *attr, const char *buf, size_t size)
 787 +{
 788 +       struct fb_info *info = dev_get_drvdata(dev);
 789 +       struct metronomefb_par *par = info->par;
 790 +       char *after;
 791 +       unsigned long val = simple_strtoul(buf, &after, 10);
 792 +       size_t count = after - buf;
 793 +       ssize_t ret = -EINVAL;
 794 +
 795 +       if (*after && isspace(*after))
 796 +               count++;
 797 +
 798 +       if (val > 100)
 799 +               return -EINVAL;
 800 +
 801 +
 802 +       if (count == size) {
 803 +               ret = count;
 804 +               par->manual_refresh_threshold = val;
 805 +       }
 806 +
 807 +       return ret;
 808 +}
 809 +
 810 +static ssize_t metronomefb_autorefresh_interval_show(struct device *dev,
 811 +               struct device_attribute *attr, char *buf)
 812 +{
 813 +       struct fb_info *info = dev_get_drvdata(dev);
 814 +       struct metronomefb_par *par = info->par;
 815 +
 816 +       return sprintf(buf, "%u\n", par->partial_autorefresh_interval);
 817 +}
 818 +
 819 +static ssize_t metronomefb_autorefresh_interval_store(struct device *dev,
 820 +               struct device_attribute *attr, const char *buf, size_t size)
 821 +{
 822 +       struct fb_info *info = dev_get_drvdata(dev);
 823 +       struct metronomefb_par *par = info->par;
 824 +       char *after;
 825 +       unsigned long val = simple_strtoul(buf, &after, 10);
 826 +       size_t count = after - buf;
 827 +       ssize_t ret = -EINVAL;
 828 +
 829 +       if (*after && isspace(*after))
 830 +               count++;
 831 +
 832 +       if (val > 100)
 833 +               return -EINVAL;
 834 +
 835 +
 836 +       if (count == size) {
 837 +               ret = count;
 838 +               par->partial_autorefresh_interval = val;
 839 +       }
 840 +
 841 +       return ret;
 842 +}
 843 +
 844 +static ssize_t metronomefb_temp_show(struct device *dev,
 845 +               struct device_attribute *attr, char *buf)
 846 +{
 847 +       struct fb_info *info = dev_get_drvdata(dev);
 848 +       struct metronomefb_par *par = info->par;
 849 +
 850 +       return sprintf(buf, "%u\n", par->current_wf_temp);
 851 +}
 852 +
 853 +static ssize_t metronomefb_temp_store(struct device *dev,
 854 +               struct device_attribute *attr, const char *buf, size_t size)
 855 +{
 856 +       struct fb_info *info = dev_get_drvdata(dev);
 857 +       struct metronomefb_par *par = info->par;
 858 +       char *after;
 859 +       unsigned long val = simple_strtoul(buf, &after, 10);
 860 +       size_t count = after - buf;
 861 +       ssize_t ret = -EINVAL;
 862 +
 863 +       if (*after && isspace(*after))
 864 +               count++;
 865 +
 866 +       if (val > 100)
 867 +               return -EINVAL;
 868 +
 869 +
 870 +       if (count == size) {
 871 +               ret = count;
 872 +               if (val != par->current_wf_temp)
 873 +                       load_waveform((u8 *) par->firmware->data, par->firmware->size,
 874 +                                       par->current_wf_mode, val, par);
 875 +       }
 876 +
 877 +       return ret;
 878 +}
 879 +
 880 +DEVICE_ATTR(defio_delay, 0644,
 881 +               metronomefb_defio_delay_show, metronomefb_defio_delay_store);
 882 +DEVICE_ATTR(manual_refresh_threshold, 0644,
 883 +               metronomefb_manual_refresh_thr_show, metronomefb_manual_refresh_thr_store);
 884 +DEVICE_ATTR(temp, 0644,
 885 +               metronomefb_temp_show, metronomefb_temp_store);
 886 +DEVICE_ATTR(autorefresh_interval, 0644,
 887 +               metronomefb_autorefresh_interval_show, metronomefb_autorefresh_interval_store);
 888 +
 889 +
 890  static int __devinit metronomefb_probe(struct platform_device *dev)
 891  {
 892         struct fb_info *info;
 893 @@ -607,6 +1069,9 @@ static int __devinit metronomefb_probe(s
 894
 895         panel_type = board->get_panel_type();
 896         switch (panel_type) {
 897 +       case 5:
 898 +               epd_dt_index = 3;
 899 +               break;
 900         case 6:
 901                 epd_dt_index = 0;
 902                 break;
 903 @@ -632,29 +1097,59 @@ static int __devinit metronomefb_probe(s
 904         if (!videomemory)
 905                 goto err_fb_rel;
 906
 907 -       memset(videomemory, 0, videomemorysize);
 908 +       memset(videomemory, 0xff, videomemorysize);
 909
 910         info->screen_base = (char __force __iomem *)videomemory;
 911         info->fbops = &metronomefb_ops;
 912
 913 -       metronomefb_fix.line_length = fw;
 914 -       metronomefb_var.xres = fw;
 915 -       metronomefb_var.yres = fh;
 916 -       metronomefb_var.xres_virtual = fw;
 917 -       metronomefb_var.yres_virtual = fh;
 918         info->var = metronomefb_var;
 919         info->fix = metronomefb_fix;
 920 -       info->fix.smem_len = videomemorysize;
 921 +       switch (board->panel_rotation) {
 922 +       case FB_ROTATE_CW:
 923 +       case FB_ROTATE_CCW:
 924 +               info->var.xres = fh;
 925 +               info->var.yres = fw;
 926 +               info->var.xres_virtual = fh;
 927 +               info->var.yres_virtual = fw;
 928 +               info->fix.line_length = fh;
 929 +               break;
 930 +       case FB_ROTATE_UD:
 931 +       default:
 932 +               info->var.xres = fw;
 933 +               info->var.yres = fh;
 934 +               info->var.xres_virtual = fw;
 935 +               info->var.yres_virtual = fh;
 936 +               info->fix.line_length = fw;
 937 +               break;
 938 +       }
 939 +       info->fix.smem_len = fw * fh; /* Real size of image area */
 940         par = info->par;
 941         par->info = info;
 942         par->board = board;
 943 -       par->dt = epd_dt_index;
 944 +       par->epd_frame = &epd_frame_table[epd_dt_index];
 945 +       par->pdev = dev;
 946 +
 947 +       par->rotation = board->panel_rotation;
 948 +
 949 +       par->fxbuckets = kmalloc((fw / 4 + 1) * sizeof(*par->fxbuckets), GFP_KERNEL);
 950 +       if (!par->fxbuckets)
 951 +               goto err_vfree;
 952 +
 953 +       par->fybuckets = kmalloc(fh * sizeof(*par->fybuckets), GFP_KERNEL);
 954 +       if (!par->fybuckets)
 955 +               goto err_fxbuckets;
 956 +
 957         init_waitqueue_head(&par->waitq);
 958 +       par->manual_refresh_threshold = DEFAULT_MANUAL_REFRESH_THRESHOLD;
 959 +       par->partial_autorefresh_interval = 256;
 960 +       par->partial_updates_count = 0;
 961 +       par->is_first_update = 1;
 962 +       mutex_init(&par->lock);
 963
 964         /* this table caches per page csum values. */
 965         par->csum_table = vmalloc(videomemorysize/PAGE_SIZE);
 966         if (!par->csum_table)
 967 -               goto err_vfree;
 968 +               goto err_fybuckets;
 969
 970         /* the physical framebuffer that we use is setup by
 971          * the platform device driver. It will provide us
 972 @@ -684,13 +1179,19 @@ static int __devinit metronomefb_probe(s
 973                 goto err_csum_table;
 974         }
 975
 976 -       retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, 3, 31,
 977 +       retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, WF_MODE_GC, temp,
 978                                 par);
 979 -       release_firmware(fw_entry);
 980         if (retval < 0) {
 981                 dev_err(&dev->dev, "Failed processing waveform\n");
 982                 goto err_csum_table;
 983         }
 984 +       par->firmware = fw_entry;
 985 +
 986 +       retval = board->setup_io(par);
 987 +       if (retval) {
 988 +               dev_err(&dev->dev, "metronomefb: setup_io() failed\n");
 989 +               goto err_csum_table;
 990 +       }
 991
 992         if (board->setup_irq(info))
 993                 goto err_csum_table;
 994 @@ -712,7 +1213,7 @@ static int __devinit metronomefb_probe(s
 995
 996         /* set cmap */
 997         for (i = 0; i < 8; i++)
 998 -               info->cmap.red[i] = (((2*i)+1)*(0xFFFF))/16;
 999 +               info->cmap.red[i] = ((2 * i + 1)*(0xFFFF))/16;
1000         memcpy(info->cmap.green, info->cmap.red, sizeof(u16)*8);
1001         memcpy(info->cmap.blue, info->cmap.red, sizeof(u16)*8);
1002
1003 @@ -722,18 +1223,47 @@ static int __devinit metronomefb_probe(s
1004
1005         platform_set_drvdata(dev, info);
1006
1007 -       dev_dbg(&dev->dev,
1008 +       retval = device_create_file(info->dev, &dev_attr_defio_delay);
1009 +       if (retval)
1010 +               goto err_devattr_defio_delay;
1011 +
1012 +       retval = device_create_file(info->dev, &dev_attr_manual_refresh_threshold);
1013 +       if (retval)
1014 +               goto err_devattr_manual_refresh_thr;
1015 +
1016 +       retval = device_create_file(info->dev, &dev_attr_temp);
1017 +       if (retval)
1018 +               goto err_devattr_temp;
1019 +
1020 +       retval = device_create_file(info->dev, &dev_attr_autorefresh_interval);
1021 +       if (retval)
1022 +               goto err_devattr_autorefresh;
1023 +
1024 +       dev_info(&dev->dev,
1025                 "fb%d: Metronome frame buffer device, using %dK of video"
1026                 " memory\n", info->node, videomemorysize >> 10);
1027
1028         return 0;
1029
1030 +       device_remove_file(info->dev, &dev_attr_autorefresh_interval);
1031 +err_devattr_autorefresh:
1032 +       device_remove_file(info->dev, &dev_attr_temp);
1033 +err_devattr_temp:
1034 +       device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
1035 +err_devattr_manual_refresh_thr:
1036 +       device_remove_file(info->dev, &dev_attr_defio_delay);
1037 +err_devattr_defio_delay:
1038 +       unregister_framebuffer(info);
1039  err_cmap:
1040         fb_dealloc_cmap(&info->cmap);
1041  err_free_irq:
1042         board->cleanup(par);
1043  err_csum_table:
1044         vfree(par->csum_table);
1045 +err_fybuckets:
1046 +       kfree(par->fybuckets);
1047 +err_fxbuckets:
1048 +       kfree(par->fxbuckets);
1049  err_vfree:
1050         vfree(videomemory);
1051  err_fb_rel:
1052 @@ -750,26 +1280,76 @@ static int __devexit metronomefb_remove(
1053         if (info) {
1054                 struct metronomefb_par *par = info->par;
1055
1056 +               par->board->set_stdby(par, 0);
1057 +               mdelay(1);
1058 +               if (par->board->power_ctl)
1059 +                       par->board->power_ctl(par, METRONOME_POWER_OFF);
1060 +
1061 +               device_remove_file(info->dev, &dev_attr_autorefresh_interval);
1062 +               device_remove_file(info->dev, &dev_attr_temp);
1063 +               device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
1064 +               device_remove_file(info->dev, &dev_attr_defio_delay);
1065                 unregister_framebuffer(info);
1066                 fb_deferred_io_cleanup(info);
1067                 fb_dealloc_cmap(&info->cmap);
1068                 par->board->cleanup(par);
1069                 vfree(par->csum_table);
1070 +               kfree(par->fybuckets);
1071 +               kfree(par->fxbuckets);
1072                 vfree((void __force *)info->screen_base);
1073                 module_put(par->board->owner);
1074 +               release_firmware(par->firmware);
1075                 dev_dbg(&dev->dev, "calling release\n");
1076                 framebuffer_release(info);
1077         }
1078         return 0;
1079  }
1080
1081 +#ifdef CONFIG_PM
1082 +static int metronomefb_suspend(struct platform_device *pdev, pm_message_t message)
1083 +{
1084 +       struct fb_info *info = platform_get_drvdata(pdev);
1085 +       struct metronomefb_par *par = info->par;
1086 +
1087 +       par->board->set_stdby(par, 0);
1088 +       par->board->set_rst(par, 0);
1089 +       if (par->board->power_ctl)
1090 +               par->board->power_ctl(par, METRONOME_POWER_OFF);
1091 +
1092 +
1093 +       return 0;
1094 +}
1095 +
1096 +static int metronomefb_resume(struct platform_device *pdev)
1097 +{
1098 +       struct fb_info *info = platform_get_drvdata(pdev);
1099 +       struct metronomefb_par *par = info->par;
1100 +
1101 +       if (par->board->power_ctl)
1102 +               par->board->power_ctl(par, METRONOME_POWER_ON);
1103 +
1104 +       mutex_lock(&par->lock);
1105 +       metronome_bootup(par);
1106 +       mutex_unlock(&par->lock);
1107 +
1108 +       return 0;
1109 +}
1110 +
1111 +#else
1112 +#define metronomefb_suspend NULL
1113 +#define metronomefb_resume NULL
1114 +#endif
1115 +
1116 +
1117  static struct platform_driver metronomefb_driver = {
1118 -       .probe  = metronomefb_probe,
1119 -       .remove = metronomefb_remove,
1120 -       .driver = {
1121 -               .owner  = THIS_MODULE,
1122 -               .name   = "metronomefb",
1123 -       },
1124 +       .driver         = {
1125 +                       .owner  = THIS_MODULE,
1126 +                       .name   = "metronomefb",
1127 +                       },
1128 +       .probe          = metronomefb_probe,
1129 +       .remove         = __devexit_p(metronomefb_remove),
1130 +       .suspend        = metronomefb_suspend,
1131 +       .resume         = metronomefb_resume,
1132  };
1133
1134  static int __init metronomefb_init(void)
1135 @@ -782,8 +1362,8 @@ static void __exit metronomefb_exit(void
1136         platform_driver_unregister(&metronomefb_driver);
1137  }
1138
1139 -module_param(user_wfm_size, uint, 0);
1140 -MODULE_PARM_DESC(user_wfm_size, "Set custom waveform size");
1141 +module_param(temp, int, 0);
1142 +MODULE_PARM_DESC(temp, "Set current temperature");
1143
1144  module_init(metronomefb_init);
1145  module_exit(metronomefb_exit);
1146 --- a/include/video/metronomefb.h
1147 +++ b/include/video/metronomefb.h
1148 @@ -17,7 +17,9 @@ struct metromem_cmd {
1149         u16 opcode;
1150         u16 args[((64-2)/2)];
1151         u16 csum;
1152 -};
1153 +} __attribute__((packed));
1154 +
1155 +struct epd_frame;
1156
1157  /* struct used by metronome. board specific stuff comes from *board */
1158  struct metronomefb_par {
1159 @@ -27,19 +29,40 @@ struct metronomefb_par {
1160         u16 *metromem_img_csum;
1161         u16 *csum_table;
1162         dma_addr_t metromem_dma;
1163 +       const struct firmware *firmware;
1164         struct fb_info *info;
1165         struct metronome_board *board;
1166 +       struct platform_device *pdev;
1167         wait_queue_head_t waitq;
1168         u8 frame_count;
1169         int extra_size;
1170 -       int dt;
1171 +       int current_wf_mode;
1172 +       int current_wf_temp;
1173 +       unsigned int manual_refresh_threshold;
1174 +       unsigned int partial_autorefresh_interval;
1175 +       const struct epd_frame *epd_frame;
1176 +       u32 *fxbuckets;
1177 +       u32 *fybuckets;
1178 +
1179 +       int rotation;
1180 +
1181 +       unsigned int partial_updates_count;
1182 +       unsigned is_first_update:1;
1183 +
1184 +       struct mutex lock;
1185  };
1186
1187 +#define METRONOME_POWER_OFF    0
1188 +#define METRONOME_POWER_ON     1
1189 +
1190  /* board specific routines and data */
1191  struct metronome_board {
1192         struct module *owner; /* the platform device */
1193 +       void (*power_ctl)(struct metronomefb_par *, int);
1194         void (*set_rst)(struct metronomefb_par *, int);
1195         void (*set_stdby)(struct metronomefb_par *, int);
1196 +       int (*get_err)(struct metronomefb_par *);
1197 +       int (*get_rdy)(struct metronomefb_par *);
1198         void (*cleanup)(struct metronomefb_par *);
1199         int (*met_wait_event)(struct metronomefb_par *);
1200         int (*met_wait_event_intr)(struct metronomefb_par *);
1201 @@ -47,11 +70,7 @@ struct metronome_board {
1202         int (*setup_fb)(struct metronomefb_par *);
1203         int (*setup_io)(struct metronomefb_par *);
1204         int (*get_panel_type)(void);
1205 -       unsigned char *metromem;
1206 -       int fw;
1207 -       int fh;
1208 -       int wfm_size;
1209 -       struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
1210 +       int panel_rotation;
1211  };
1212
1213  #endif