drivers/video/rockchip/rkfb_sysfs.c

   1 /*
   2  * linux/drivers/video/rockchip/rkfb-sysfs.c
   3  *
   4  * Copyright (C) 2012 Rockchip Corporation
   5  * Author: yxj<yxj@rock-chips.com>
   6  *
   7  * Some code and ideas taken from
   8  *drivers/video/omap2/omapfb/omapfb-sys.c
   9  *driver by Tomi Valkeinen.
  10  *
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License version 2 as published by
  14  * the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but WITHOUT
  17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  * more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along with
  22  * this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 #include <linux/fb.h>
  26 #include <linux/namei.h>
  27 #include <linux/sysfs.h>
  28 #include <linux/device.h>
  29 #include <linux/uaccess.h>
  30 #include <linux/platform_device.h>
  31 #include <linux/kernel.h>
  32 #include <linux/mm.h>
  33 #include <linux/vmalloc.h>
  34 #include <asm/div64.h>
  35 #include <linux/rk_screen.h>
  36 #include <linux/rk_fb.h>
  37 #if defined(CONFIG_ION_ROCKCHIP)
  38 #include <linux/rockchip_ion.h>
  39 #endif
  40 #include "bmp_helper.h"
  41 #include <linux/delay.h>
  42 struct rkfb_sys_trace {
  43         int num_frames;
  44         int count_frame;
  45         int mask_win;
  46         int mask_area;
  47         bool is_bmp;
  48         bool is_append;
  49 };
  50 #define DUMP_BUF_PATH           "/data/dmp_buf"
  51
  52 static char *get_format_str(enum data_format format)
  53 {
  54         switch (format) {
  55         case ARGB888:
  56                 return "ARGB888";
  57         case RGB888:
  58                 return "RGB888";
  59         case RGB565:
  60                 return "RGB565";
  61         case YUV420:
  62         case YUV420_NV21:
  63                 return "YUV420";
  64         case YUV422:
  65                 return "YUV422";
  66         case YUV444:
  67                 return "YUV444";
  68         case YUV420_A:
  69                 return "YUV420_A";
  70         case YUV422_A:
  71                 return "YUV422_A";
  72         case YUV444_A:
  73                 return "YUV444_A";
  74         case XRGB888:
  75                 return "XRGB888";
  76         case XBGR888:
  77                 return "XBGR888";
  78         case ABGR888:
  79                 return "ABGR888";
  80         case FBDC_RGB_565:
  81                 return "FBDC_RGB_565";
  82         case FBDC_ARGB_888:
  83                 return "FBDC_ARGB_888";
  84         case FBDC_RGBX_888:
  85                 return "FBDC_RGBX_888";
  86         default:
  87                 return "invalid";
  88         }
  89 }
  90
  91 static ssize_t show_screen_info(struct device *dev,
  92                                 struct device_attribute *attr, char *buf)
  93 {
  94         struct fb_info *fbi = dev_get_drvdata(dev);
  95         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
  96         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
  97         struct rk_screen *screen = dev_drv->cur_screen;
  98         int fps = 0;
  99         u32 x = screen->mode.left_margin + screen->mode.right_margin +
 100                 screen->mode.xres + screen->mode.hsync_len;
 101         u32 y = screen->mode.upper_margin + screen->mode.lower_margin +
 102                 screen->mode.yres + screen->mode.vsync_len;
 103         u64 ft = (u64)x * y * (dev_drv->pixclock);
 104
 105         if (ft > 0)
 106                 fps = div64_u64(1000000000000llu, ft);
 107         return snprintf(buf, PAGE_SIZE,
 108                         "xres:%d\nyres:%d\nfps:%d\ntype:%d\ninterlace:%d\n",
 109                         screen->mode.xres, screen->mode.yres,
 110                         fps, screen->type, screen->mode.vmode);
 111 }
 112
 113 static ssize_t set_screen_info(struct device *dev,
 114                                struct device_attribute *attr,
 115                                const char *buf, size_t count)
 116 {
 117         struct fb_info *fbi = dev_get_drvdata(dev);
 118         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 119         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 120         int xmirror = 0, ymirror = 0, ret = 0, rotate = 0;
 121
 122         ret = kstrtoint(buf, 0, &rotate);
 123         if (ret)
 124                 return ret;
 125         xmirror = !!(rotate & X_MIRROR);
 126         ymirror = !!(rotate & Y_MIRROR);
 127         dev_drv->cur_screen->x_mirror = xmirror;
 128         dev_drv->cur_screen->y_mirror = ymirror;
 129         mutex_lock(&dev_drv->output_lock);
 130         mutex_lock(&dev_drv->win_config);
 131         if (dev_drv->ops->extern_func)
 132                 dev_drv->ops->extern_func(dev_drv, SET_DSP_MIRROR);
 133         mutex_unlock(&dev_drv->win_config);
 134         mutex_unlock(&dev_drv->output_lock);
 135
 136         return count;
 137 }
 138
 139 static ssize_t show_disp_info(struct device *dev,
 140                               struct device_attribute *attr, char *buf)
 141 {
 142         struct fb_info *fbi = dev_get_drvdata(dev);
 143         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 144         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 145         int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
 146
 147         if (dev_drv->ops->get_disp_info)
 148                 return dev_drv->ops->get_disp_info(dev_drv, buf, win_id);
 149
 150         return 0;
 151 }
 152
 153 static void fill_buffer(void *handle, void *vaddr, int size)
 154 {
 155         struct file *filp = handle;
 156
 157         if (filp)
 158                 vfs_write(filp, vaddr, size, &filp->f_pos);
 159 }
 160
 161 static void read_buffer(void *handle, void *vaddr, int size, loff_t pos)
 162 {
 163         struct file *filp = handle;
 164
 165         if (filp)
 166                 vfs_read(filp, vaddr, size, &pos);
 167 }
 168
 169 static int dump_win(struct ion_client *ion_client,
 170                     struct ion_handle *ion_handle, phys_addr_t phys_addr,
 171                     int width, int height, u8 data_format, uint32_t frameid,
 172                     int win_id, int area_id, bool is_bmp, bool is_append)
 173 {
 174         void __iomem *vaddr = NULL;
 175         struct file *filp;
 176         mm_segment_t old_fs;
 177         char name[100];
 178         int flags;
 179         int bits;
 180
 181         switch (data_format) {
 182         case XRGB888:
 183         case XBGR888:
 184         case ARGB888:
 185         case ABGR888:
 186         case FBDC_RGBX_888:
 187                 bits = 32;
 188                 break;
 189         case YUV444_A:
 190         case YUV444:
 191         case RGB888:
 192         case FBDC_ARGB_888:
 193                 bits = 24;
 194                 break;
 195         case RGB565:
 196         case FBDC_RGB_565:
 197         case YUV422:
 198         case YUV422_A:
 199                 bits = 16;
 200                 break;
 201         case YUV420_A:
 202         case YUV420:
 203         case YUV420_NV21:
 204                 bits = 12;
 205                 break;
 206         default:
 207                 return 0;
 208         }
 209
 210         if (ion_handle) {
 211                 vaddr = ion_map_kernel(ion_client, ion_handle);
 212         } else if (phys_addr) {
 213                 unsigned long start;
 214                 unsigned int nr_pages;
 215                 struct page **pages;
 216                 int i = 0;
 217
 218                 start = phys_addr;
 219                 nr_pages = roundup(width * height * (bits >> 3), PAGE_SIZE);
 220                 nr_pages /= PAGE_SIZE;
 221                 pages = kzalloc(sizeof(struct page) * nr_pages, GFP_KERNEL);
 222                 if (!pages)
 223                         return -ENOMEM;
 224                 while (i < nr_pages) {
 225                         pages[i] = phys_to_page(start);
 226                         start += PAGE_SIZE;
 227                         i++;
 228                 }
 229                 vaddr = vmap(pages, nr_pages, VM_MAP,
 230                              pgprot_writecombine(PAGE_KERNEL));
 231                 if (!vaddr) {
 232                         pr_err("failed to vmap phy addr %lx\n",
 233                                start);
 234                         return -1;
 235                 }
 236         } else {
 237                 return 0;
 238         }
 239
 240         flags = O_RDWR | O_CREAT | O_NONBLOCK;
 241         if (is_append) {
 242                 snprintf(name, 100, "%s/append_win%d_%d_%dx%d_%s.%s",
 243                          DUMP_BUF_PATH, win_id, area_id, width, height,
 244                          get_format_str(data_format), is_bmp ? "bmp" : "bin");
 245                 flags |= O_APPEND;
 246         } else {
 247                 snprintf(name, 100, "%s/frame%d_win%d_%d_%dx%d_%s.%s",
 248                          DUMP_BUF_PATH, frameid, win_id, area_id, width, height,
 249                          get_format_str(data_format), is_bmp ? "bmp" : "bin");
 250         }
 251
 252         pr_info("dump win == > %s\n", name);
 253         filp = filp_open(name, flags, 0x600);
 254         if (!filp)
 255                 pr_err("fail to create %s\n", name);
 256
 257         old_fs = get_fs();
 258         set_fs(KERNEL_DS);
 259
 260         if (is_bmp)
 261                 bmpencoder(vaddr, width, height,
 262                            data_format, filp, fill_buffer);
 263         else
 264                 fill_buffer(filp, vaddr, width * height * bits >> 3);
 265
 266         set_fs(old_fs);
 267
 268         if (ion_handle)
 269                 ion_unmap_kernel(ion_client, ion_handle);
 270         else if (vaddr)
 271                 vunmap(vaddr);
 272
 273         filp_close(filp, NULL);
 274
 275         return 0;
 276 }
 277
 278 static ssize_t show_dump_buffer(struct device *dev,
 279                                 struct device_attribute *attr, char *buf)
 280 {
 281         ssize_t size;
 282
 283         size = snprintf(buf, PAGE_SIZE,
 284                         "bmp       -- dump buffer to bmp image\n"
 285                         "             can't support dump to single file\n"
 286                         "bin       -- dump buffer to bin image\n"
 287                         "multi     -- each dump will create new file\n"
 288                         "             only works on trace context\n"
 289                         "win=num   -- mask win to dump, default mask all\n"
 290                         "             win=1, will dump win1 buffer\n"
 291                         "             win=23, will dump win2 area3 buffer\n"
 292                         "trace=num -- trace num frames buffer dump\n"
 293                         "             this option will block buffer switch\n"
 294                         "             so recommend use with bin and win=xx\n"
 295                         "\nExample:\n"
 296                         "echo bmp > dump_buf; -- dump current buf to bmp file\n"
 297                         "echo bin > dump_buf; -- dump current buf to bin file\n"
 298                         "echo trace=50:win=1:win=23 > dump_buf\n"
 299                         "         -- dump 50 frames, dump win1 and win2 area3\n"
 300                         "         -- dump all buffer to single file\n"
 301                         "You can found dump files at %s\n"
 302                         , DUMP_BUF_PATH);
 303
 304         return size;
 305 }
 306
 307 void trace_buffer_dump(struct device *dev, struct rk_lcdc_driver *dev_drv)
 308 {
 309         struct rk_fb *rk_fb = dev_get_drvdata(dev);
 310         struct rk_fb_reg_data *front_regs;
 311         struct rk_fb_reg_win_data *win_data;
 312         struct rk_fb_reg_area_data *area_data;
 313         struct rkfb_sys_trace *trace = dev_drv->trace_buf;
 314         int i, j;
 315
 316         if (!trace)
 317                 return;
 318         if (trace->num_frames <= trace->count_frame)
 319                 return;
 320
 321         if (!dev_drv->front_regs)
 322                 return;
 323         front_regs = dev_drv->front_regs;
 324
 325         for (i = 0; i < front_regs->win_num; i++) {
 326                 if (trace->mask_win && !(trace->mask_win & (1 << i)))
 327                         continue;
 328                 for (j = 0; j < RK_WIN_MAX_AREA; j++) {
 329                         win_data = &front_regs->reg_win_data[i];
 330                         area_data = &win_data->reg_area_data[j];
 331                         if (trace->mask_area && !(trace->mask_area & (1 << j)))
 332                                 continue;
 333
 334                         dump_win(rk_fb->ion_client, area_data->ion_handle,
 335                                  area_data->smem_start,
 336                                  area_data->xvir, area_data->yvir,
 337                                  area_data->data_format, trace->count_frame,
 338                                  i, j, trace->is_bmp, trace->is_append);
 339                 }
 340         }
 341         trace->count_frame++;
 342 }
 343
 344 static ssize_t set_dump_buffer(struct device *dev,
 345                                struct device_attribute *attr,
 346                                const char *buf, size_t count)
 347 {
 348         struct fb_info *fbi = dev_get_drvdata(dev);
 349         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 350         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 351         struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
 352         struct rk_fb_reg_data *front_regs;
 353         struct rk_fb_reg_win_data *win_data;
 354         struct rk_fb_reg_area_data *area_data;
 355         struct rkfb_sys_trace *trace;
 356         struct dentry *dentry;
 357         struct path path;
 358         int err = 0;
 359         int num_frames = 0;
 360         int mask_win = 0;
 361         int mask_area = 0;
 362         bool is_bmp = false;
 363         bool is_append = true;
 364         char *p;
 365         int i, j;
 366
 367         if (!rk_fb->ion_client)
 368                 return 0;
 369
 370         if (!dev_drv->trace_buf) {
 371                 dev_drv->trace_buf = devm_kmalloc(dev_drv->dev,
 372                                                   sizeof(struct rkfb_sys_trace),
 373                                                   GFP_KERNEL);
 374                 if (!dev_drv->trace_buf)
 375                         return -ENOMEM;
 376         }
 377         trace = dev_drv->trace_buf;
 378         /*
 379          * Stop buffer trace.
 380          */
 381         trace->num_frames = 0;
 382
 383         while ((p = strsep((char **)&buf, ":")) != NULL) {
 384                 if (!*p)
 385                         continue;
 386                 if (!strncmp(p, "trace=", 6)) {
 387                         if (kstrtoint(p + 6, 0, &num_frames))
 388                                 dev_err(dev, "can't found trace frames\n");
 389                         continue;
 390                 }
 391                 if (!strncmp(p, "win=", 4)) {
 392                         int win;
 393
 394                         if (kstrtoint(p + 4, 0, &win))
 395                                 dev_err(dev, "can't found trace frames\n");
 396                         if (win < 10) {
 397                                mask_win |= 1 << win;
 398                         } else {
 399                                 mask_win |= 1 << (win / 10);
 400                                 mask_area |= 1 << (win % 10);
 401                         }
 402
 403                         continue;
 404                 }
 405                 if (!strncmp(p, "bmp", 3)) {
 406                         is_bmp = true;
 407                         is_append = false;
 408                         continue;
 409                 }
 410                 if (!strncmp(p, "bin", 3)) {
 411                         is_bmp = false;
 412                         continue;
 413                 }
 414                 if (!strncmp(p, "multi", 5)) {
 415                         is_append = false;
 416                         continue;
 417                 }
 418
 419                 dev_err(dev, "unknown option %s\n", p);
 420         }
 421
 422         dentry = kern_path_create(AT_FDCWD, DUMP_BUF_PATH, &path,
 423                                   LOOKUP_DIRECTORY);
 424         if (!IS_ERR(dentry)) {
 425                 err = vfs_mkdir(path.dentry->d_inode, dentry, 700);
 426                 if (err)
 427                         dev_err(dev, "can't create %s err%d\n",
 428                                 DUMP_BUF_PATH, err);
 429                 done_path_create(&path, dentry);
 430         } else if (PTR_ERR(dentry) != -EEXIST) {
 431                 dev_err(dev, "can't create PATH %s err%d\n",
 432                                 DUMP_BUF_PATH, err);
 433                 return PTR_ERR(dentry);
 434         }
 435
 436         mutex_lock(&dev_drv->front_lock);
 437         if (!num_frames) {
 438                 if (!dev_drv->front_regs) {
 439                         u16 xact, yact;
 440                         int data_format;
 441                         u32 dsp_addr;
 442                         int ymirror;
 443
 444                         if (dev_drv->ops->get_dspbuf_info)
 445                                 dev_drv->ops->get_dspbuf_info(dev_drv, &xact,
 446                                                 &yact, &data_format, &dsp_addr,
 447                                                 &ymirror);
 448
 449                         dump_win(NULL, NULL, dsp_addr, xact, yact, data_format,
 450                                  0, 0, 0, is_bmp, false);
 451                         goto out;
 452                 }
 453                 front_regs = kmalloc(sizeof(*front_regs), GFP_KERNEL);
 454                 if (!front_regs) {
 455                         mutex_unlock(&dev_drv->front_lock);
 456                         return -ENOMEM;
 457                 }
 458                 memcpy(front_regs, dev_drv->front_regs, sizeof(*front_regs));
 459
 460                 for (i = 0; i < front_regs->win_num; i++) {
 461                         if (mask_win && !(mask_win & (1 << i)))
 462                                 continue;
 463                         for (j = 0; j < RK_WIN_MAX_AREA; j++) {
 464                                 if (mask_area && !(mask_area & (1 << j)))
 465                                         continue;
 466                                 win_data = &front_regs->reg_win_data[i];
 467                                 area_data = &win_data->reg_area_data[j];
 468                                 if (area_data->ion_handle)
 469                                         ion_handle_get(area_data->ion_handle);
 470                         }
 471                 }
 472
 473                 for (i = 0; i < front_regs->win_num; i++) {
 474                         if (mask_win && !(mask_win & (1 << i)))
 475                                 continue;
 476                         for (j = 0; j < RK_WIN_MAX_AREA; j++) {
 477                                 if (mask_area && !(mask_area & (1 << j)))
 478                                         continue;
 479
 480                                 win_data = &front_regs->reg_win_data[i];
 481                                 area_data = &win_data->reg_area_data[j];
 482
 483                                 dump_win(rk_fb->ion_client,
 484                                          area_data->ion_handle,
 485                                          area_data->smem_start,
 486                                          area_data->xvir, area_data->yvir,
 487                                          area_data->data_format,
 488                                          0, i, j, is_bmp, false);
 489                                 if (area_data->ion_handle)
 490                                         ion_handle_put(area_data->ion_handle);
 491                         }
 492                 }
 493
 494                 kfree(front_regs);
 495         } else {
 496                 trace->num_frames = num_frames;
 497                 trace->count_frame = 0;
 498                 trace->is_bmp = is_bmp;
 499                 trace->is_append = is_append;
 500                 trace->mask_win = mask_win;
 501                 trace->mask_area = mask_area;
 502         }
 503 out:
 504         mutex_unlock(&dev_drv->front_lock);
 505         return count;
 506 }
 507
 508 static ssize_t show_dsp_buffer(struct device *dev,
 509                                struct device_attribute *attr, char *buf)
 510 {
 511         ssize_t size;
 512
 513         size = snprintf(buf, PAGE_SIZE,
 514                         "you can display a picture store in "
 515                         "/data/fb0.bin use the following cmd:\n"
 516                         "echo n xsize ysize format > dsp_buf\n"
 517                         "n: picture number"
 518                         "xsize: picture horizontal size\n"
 519                         "ysize: picture vertical size\n"
 520                         "format:\n"
 521                         "    RGBA=1,RGBX=2,RGB=3,YUV420SP=17");
 522
 523         return size;
 524 }
 525 extern int __close_fd(struct files_struct *files, unsigned fd);
 526
 527 static ssize_t set_dsp_buffer(struct device *dev,
 528                               struct device_attribute *attr,
 529                               const char *buf, size_t count)
 530 {
 531         struct fb_info *fbi = dev_get_drvdata(dev);
 532         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 533         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 534         struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
 535         struct file *filp;
 536         mm_segment_t old_fs;
 537         int width, height, frame_num;
 538         int i, j, flags, fd;
 539         const char *start = buf;
 540         struct ion_handle *handle = NULL;
 541         char __iomem *screen_base;
 542         struct rk_fb_win_cfg_data *win_config = NULL;
 543         struct rk_screen *screen = dev_drv->cur_screen;
 544         int space_max = 10;
 545         int format;
 546         size_t mem_size = 0;
 547         char *name = "/data/fb0.bin";
 548         struct sync_fence *acq_fence;
 549         struct files_struct *files = current->files;
 550
 551         frame_num = simple_strtoul(start, NULL, 10);
 552         do {
 553                 start++;
 554                 space_max--;
 555         } while ((*start != ' ') && space_max);
 556         start++;
 557         width = simple_strtoul(start, NULL, 10);
 558         do {
 559                 start++;
 560                 space_max--;
 561         } while ((*start != ' ') && space_max);
 562         start++;
 563         height = simple_strtoul(start, NULL, 10);
 564
 565         do {
 566                 start++;
 567                 space_max--;
 568         } while ((*start != ' ') && space_max);
 569         start++;
 570         format = simple_strtoul(start, NULL, 10);
 571
 572         pr_info("frame_num=%d,w=%d,h=%d,file=%s,format=%d\n",
 573                 frame_num, width, height, name, format);
 574         flags = O_RDWR | O_CREAT | O_NONBLOCK;
 575         filp = filp_open(name, flags, 0x600);
 576         if (!filp)
 577                 pr_err("fail to create %s\n", name);
 578
 579         old_fs = get_fs();
 580         set_fs(KERNEL_DS);
 581
 582         mem_size = width * height * 4 * frame_num;
 583         if (dev_drv->iommu_enabled)
 584                 handle = ion_alloc(rk_fb->ion_client, mem_size, 0,
 585                                    ION_HEAP_SYSTEM_MASK, 0);
 586         else
 587                 handle = ion_alloc(rk_fb->ion_client, mem_size, 0,
 588                                    ION_HEAP_TYPE_DMA_MASK, 0);
 589         if (IS_ERR(handle)) {
 590                 pr_err("failed to ion_alloc:%ld\n", PTR_ERR(handle));
 591                 return -ENOMEM;
 592         }
 593         fd = ion_share_dma_buf_fd(rk_fb->ion_client, handle);
 594         if (fd < 0) {
 595                 pr_err("ion_share_dma_buf_fd failed, fd=%d\n", fd);
 596                 return fd;
 597         }
 598         screen_base = ion_map_kernel(rk_fb->ion_client, handle);
 599         read_buffer(filp, screen_base, mem_size, 0);
 600         win_config =
 601                 kzalloc(sizeof(*win_config), GFP_KERNEL);
 602         if (!win_config)
 603                 return -ENOMEM;
 604
 605         memset(win_config, 0, sizeof(struct rk_fb_win_cfg_data));
 606         win_config->wait_fs = 0;
 607         win_config->win_par[0].win_id = 0;
 608         win_config->win_par[0].z_order = 0;
 609         win_config->win_par[0].area_par[0].data_format = format;
 610         win_config->win_par[0].area_par[0].ion_fd = fd;
 611         win_config->win_par[0].area_par[0].x_offset = 0;
 612         win_config->win_par[0].area_par[0].y_offset = 0;
 613         win_config->win_par[0].area_par[0].xpos = 0;
 614         win_config->win_par[0].area_par[0].ypos = 0;
 615         win_config->win_par[0].area_par[0].xsize = screen->mode.xres;
 616         win_config->win_par[0].area_par[0].ysize = screen->mode.yres;
 617         win_config->win_par[0].area_par[0].xact = width;
 618         win_config->win_par[0].area_par[0].yact = height;
 619         win_config->win_par[0].area_par[0].xvir = width;
 620         win_config->win_par[0].area_par[0].yvir = height;
 621
 622         for (i = 0; i < frame_num; i++) {
 623                 win_config->win_par[0].area_par[0].y_offset = height * i;
 624                 fbi->fbops->fb_ioctl(fbi, RK_FBIOSET_CONFIG_DONE,
 625                                      (unsigned long)(win_config));
 626                 for (j = 0; j < RK_MAX_BUF_NUM; j++) {
 627                         if (win_config->rel_fence_fd[j] > 0) {
 628                                 acq_fence =
 629                                 sync_fence_fdget(win_config->rel_fence_fd[j]);
 630                                 sync_fence_put(acq_fence);
 631                         }
 632                 }
 633
 634                 if (win_config->ret_fence_fd > 0) {
 635                         acq_fence =
 636                         sync_fence_fdget(win_config->ret_fence_fd);
 637                         sync_fence_put(acq_fence);
 638                 }
 639         }
 640
 641         ion_unmap_kernel(rk_fb->ion_client, handle);
 642         ion_free(rk_fb->ion_client, handle);
 643         __close_fd(files, fd);
 644
 645         set_fs(old_fs);
 646         filp_close(filp, NULL);
 647         kfree(win_config);
 648         return count;
 649 }
 650
 651 static ssize_t show_phys(struct device *dev,
 652                          struct device_attribute *attr, char *buf)
 653 {
 654         struct fb_info *fbi = dev_get_drvdata(dev);
 655
 656         return snprintf(buf, PAGE_SIZE, "0x%lx-----0x%x\n",
 657                         fbi->fix.smem_start, fbi->fix.smem_len);
 658 }
 659
 660 static ssize_t show_virt(struct device *dev,
 661                          struct device_attribute *attr, char *buf)
 662 {
 663         struct fb_info *fbi = dev_get_drvdata(dev);
 664
 665         return snprintf(buf, PAGE_SIZE, "0x%p-----0x%x\n",
 666                         fbi->screen_base, fbi->fix.smem_len);
 667 }
 668
 669 static ssize_t show_fb_state(struct device *dev,
 670                              struct device_attribute *attr, char *buf)
 671 {
 672         struct fb_info *fbi = dev_get_drvdata(dev);
 673         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 674         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 675
 676         int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
 677         int state = dev_drv->ops->get_win_state(dev_drv, win_id, 0);
 678
 679         return snprintf(buf, PAGE_SIZE, "%s\n", state ? "enabled" : "disabled");
 680 }
 681
 682 static ssize_t show_dual_mode(struct device *dev,
 683                               struct device_attribute *attr, char *buf)
 684 {
 685         struct fb_info *fbi = dev_get_drvdata(dev);
 686         struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
 687         int mode = rk_fb->disp_mode;
 688
 689         return snprintf(buf, PAGE_SIZE, "%d\n", mode);
 690 }
 691
 692 static ssize_t set_fb_state(struct device *dev, struct device_attribute *attr,
 693                             const char *buf, size_t count)
 694 {
 695         struct fb_info *fbi = dev_get_drvdata(dev);
 696         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 697         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 698         int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
 699         int state;
 700         int ret;
 701
 702         ret = kstrtoint(buf, 0, &state);
 703         if (ret)
 704                 return ret;
 705         dev_drv->ops->open(dev_drv, win_id, state);
 706         if (state) {
 707                 dev_drv->ops->set_par(dev_drv, win_id);
 708                 dev_drv->ops->pan_display(dev_drv, win_id);
 709                 dev_drv->ops->cfg_done(dev_drv);
 710         }
 711         return count;
 712 }
 713
 714 static ssize_t show_overlay(struct device *dev,
 715                             struct device_attribute *attr, char *buf)
 716 {
 717         struct fb_info *fbi = dev_get_drvdata(dev);
 718         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 719         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 720         int ovl = 0;
 721
 722         if (dev_drv->ops->ovl_mgr)
 723                 ovl = dev_drv->ops->ovl_mgr(dev_drv, 0, 0);
 724
 725         if (ovl < 0)
 726                 return ovl;
 727
 728         return snprintf(buf, PAGE_SIZE, "%s\n",
 729                         ovl ? "win0 on the top of win1" :
 730                         "win1 on the top of win0");
 731 }
 732
 733 static ssize_t set_overlay(struct device *dev, struct device_attribute *attr,
 734                            const char *buf, size_t count)
 735 {
 736         struct fb_info *fbi = dev_get_drvdata(dev);
 737         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 738         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 739         u32 ovl;
 740         int ret;
 741
 742         ret = kstrtou32(buf, 0, &ovl);
 743         if (ret)
 744                 return ret;
 745         if (dev_drv->ops->ovl_mgr)
 746                 ret = dev_drv->ops->ovl_mgr(dev_drv, ovl, 1);
 747         if (ret < 0)
 748                 return ret;
 749
 750         return count;
 751 }
 752
 753 static ssize_t show_fps(struct device *dev,
 754                         struct device_attribute *attr, char *buf)
 755 {
 756         struct fb_info *fbi = dev_get_drvdata(dev);
 757         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 758         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 759         int fps = 0;
 760
 761         if (dev_drv->ops->fps_mgr)
 762                 fps = dev_drv->ops->fps_mgr(dev_drv, 0, 0);
 763         if (fps < 0)
 764                 return fps;
 765
 766         return snprintf(buf, PAGE_SIZE, "fps:%d\n", fps);
 767 }
 768
 769 static ssize_t set_fps(struct device *dev, struct device_attribute *attr,
 770                        const char *buf, size_t count)
 771 {
 772         struct fb_info *fbi = dev_get_drvdata(dev);
 773         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 774         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 775         struct rk_screen *screen = dev_drv->cur_screen;
 776         u32 fps, origin_fps;
 777         int ret;
 778
 779         ret = kstrtou32(buf, 0, &fps);
 780         if (ret)
 781                 return ret;
 782
 783         origin_fps = rk_fb_calc_fps(screen, dev_drv->pixclock);
 784
 785         /*
 786          * use too low or too high fps would make screen abnormal,
 787          * and maybe can't recovery, so limit the fps.
 788          */
 789         if (fps <= 40 || fps > origin_fps)
 790                 fps = origin_fps;
 791
 792         if (dev_drv->ops->fps_mgr)
 793                 ret = dev_drv->ops->fps_mgr(dev_drv, fps, 1);
 794         if (ret < 0)
 795                 return ret;
 796
 797         return count;
 798 }
 799
 800 static ssize_t show_fb_win_map(struct device *dev,
 801                                struct device_attribute *attr, char *buf)
 802 {
 803         int ret;
 804         struct fb_info *fbi = dev_get_drvdata(dev);
 805         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 806         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 807
 808         mutex_lock(&dev_drv->fb_win_id_mutex);
 809         ret =
 810             snprintf(buf, PAGE_SIZE, "fb0:win%d\nfb1:win%d\nfb2:win%d\n",
 811                      dev_drv->fb0_win_id, dev_drv->fb1_win_id,
 812                      dev_drv->fb2_win_id);
 813         mutex_unlock(&dev_drv->fb_win_id_mutex);
 814
 815         return ret;
 816 }
 817
 818 static ssize_t set_fb_win_map(struct device *dev, struct device_attribute *attr,
 819                               const char *buf, size_t count)
 820 {
 821         struct fb_info *fbi = dev_get_drvdata(dev);
 822         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 823         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 824         u32 order;
 825         int ret;
 826
 827         ret = kstrtou32(buf, 0, &order);
 828         if ((order != FB0_WIN2_FB1_WIN1_FB2_WIN0) &&
 829             (order != FB0_WIN1_FB1_WIN2_FB2_WIN0) &&
 830             (order != FB0_WIN2_FB1_WIN0_FB2_WIN1) &&
 831             (order != FB0_WIN0_FB1_WIN2_FB2_WIN1) &&
 832             (order != FB0_WIN0_FB1_WIN1_FB2_WIN2) &&
 833             (order != FB0_WIN1_FB1_WIN0_FB2_WIN2)) {
 834                 dev_info(dev, "un supported map\n"
 835                        "you can use the following order:\n" "201:\n"
 836                        "fb0-win1\n" "fb1-win0\n" "fb2-win2\n" "210:\n"
 837                        "fb0-win0\n" "fb1-win1\n" "fb2-win2\n" "120:\n"
 838                        "fb0-win0\n" "fb1-win2\n" "fb2-win1\n" "102:\n"
 839                        "fb0-win2\n" "fb1-win0\n" "fb2-win1\n" "021:\n"
 840                        "fb0-win1\n" "fb1-win2\n" "fb2-win0\n" "012:\n"
 841                        "fb0-win2\n" "fb1-win1\n" "fb2-win0\n");
 842                 return count;
 843         } else {
 844                 if (dev_drv->ops->fb_win_remap)
 845                         dev_drv->ops->fb_win_remap(dev_drv, order);
 846         }
 847
 848         return count;
 849 }
 850
 851 static ssize_t show_hwc_lut(struct device *dev,
 852                             struct device_attribute *attr, char *buf)
 853 {
 854         return 0;
 855 }
 856
 857 static ssize_t set_hwc_lut(struct device *dev, struct device_attribute *attr,
 858                            const char *buf, size_t count)
 859 {
 860         int *hwc_lut = NULL;
 861         const char *start = buf;
 862         int i = 256, temp;
 863         int space_max;
 864
 865         struct fb_info *fbi = dev_get_drvdata(dev);
 866         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 867         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 868
 869         hwc_lut = kzalloc(256 * 4, GFP_KERNEL);
 870         if (!hwc_lut)
 871                 return -ENOMEM;
 872         /*printk("count:%d\n>>%s\n\n",count,start);*/
 873         for (i = 0; i < 256; i++) {
 874                 space_max = 15; /*max space number 15*/
 875                 temp = simple_strtoul(start, NULL, 16);
 876                 hwc_lut[i] = temp;
 877                 do {
 878                         start++;
 879                         space_max--;
 880                 } while ((*start != ' ') && space_max);
 881
 882                 if (!space_max)
 883                         break;
 884                 else
 885                         start++;
 886         }
 887         if (dev_drv->ops->set_hwc_lut)
 888                 dev_drv->ops->set_hwc_lut(dev_drv, hwc_lut, 1);
 889         kfree(hwc_lut);
 890
 891         return count;
 892 }
 893
 894 static ssize_t show_cabc_lut(struct device *dev,
 895                              struct device_attribute *attr, char *buf)
 896 {
 897         return 0;
 898 }
 899
 900 static ssize_t set_cabc_lut(struct device *dev, struct device_attribute *attr,
 901                             const char *buf, size_t count)
 902 {
 903         int *cabc_lut = NULL;
 904         const char *start = buf;
 905         int i = 256, temp;
 906         int space_max = 10;
 907
 908         struct fb_info *fbi = dev_get_drvdata(dev);
 909         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 910         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 911
 912         cabc_lut = kzalloc(256 * 4, GFP_KERNEL);
 913         if (!cabc_lut)
 914                 return -ENOMEM;
 915         for (i = 0; i < 256; i++) {
 916                 temp = i;
 917                 /*init by default value*/
 918                 cabc_lut[i] = temp + (temp << 8) + (temp << 16);
 919         }
 920         for (i = 0; i < 256; i++) {
 921                 space_max = 10; /*max space number 10*/
 922                 temp = simple_strtoul(start, NULL, 10);
 923                 cabc_lut[i] = temp;
 924                 do {
 925                         start++;
 926                         space_max--;
 927                 } while ((*start != ' ') && space_max);
 928
 929                 if (!space_max)
 930                         break;
 931                 else
 932                         start++;
 933         }
 934         if (dev_drv->ops->set_cabc_lut)
 935                 dev_drv->ops->set_cabc_lut(dev_drv, cabc_lut);
 936
 937         kfree(cabc_lut);
 938         return count;
 939 }
 940
 941 static ssize_t show_dsp_lut(struct device *dev,
 942                             struct device_attribute *attr, char *buf)
 943 {
 944         return 0;
 945 }
 946
 947 static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
 948                            const char *buf, size_t count)
 949 {
 950         int *dsp_lut = NULL;
 951         const char *start = buf;
 952         int i = 256, temp;
 953         int space_max = 10;
 954
 955         struct fb_info *fbi = dev_get_drvdata(dev);
 956         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 957         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 958
 959         dsp_lut = kzalloc(256 * 4, GFP_KERNEL);
 960         if (!dsp_lut)
 961                 return -ENOMEM;
 962         for (i = 0; i < 256; i++) {
 963                 temp = i;
 964                 /*init by default value*/
 965                 dsp_lut[i] = temp + (temp << 8) + (temp << 16);
 966         }
 967         /*printk("count:%d\n>>%s\n\n",count,start);*/
 968         for (i = 0; i < 256; i++) {
 969                 space_max = 10; /*max space number 10*/
 970                 temp = simple_strtoul(start, NULL, 10);
 971                 dsp_lut[i] = temp;
 972                 do {
 973                         start++;
 974                         space_max--;
 975                 } while ((*start != ' ') && space_max);
 976
 977                 if (!space_max)
 978                         break;
 979                 else
 980                         start++;
 981         }
 982         if (dev_drv->ops->set_dsp_lut)
 983                 dev_drv->ops->set_dsp_lut(dev_drv, dsp_lut);
 984
 985         kfree(dsp_lut);
 986         return count;
 987 }
 988
 989 static ssize_t show_dsp_cabc(struct device *dev,
 990                              struct device_attribute *attr, char *buf)
 991 {
 992         struct fb_info *fbi = dev_get_drvdata(dev);
 993         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
 994         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 995
 996         return snprintf(buf, PAGE_SIZE, "cabc mode=%d\n",
 997                 dev_drv->cabc_mode);
 998         return 0;
 999 }
1000
1001 static ssize_t set_dsp_cabc(struct device *dev, struct device_attribute *attr,
1002                             const char *buf, size_t count)
1003 {
1004         struct fb_info *fbi = dev_get_drvdata(dev);
1005         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1006         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1007         int space_max, ret = 0;
1008         int mode = 0, calc = 0, up = 0, down = 0, global = 0;
1009         const char *start = buf;
1010
1011         space_max = 10; /*max space number 10*/
1012         mode = simple_strtoul(start, NULL, 10);
1013         do {
1014                 start++;
1015                 space_max--;
1016         } while ((*start != ' ') && space_max);
1017         start++;
1018         calc = simple_strtoul(start, NULL, 10);
1019
1020         do {
1021                 start++;
1022                 space_max--;
1023         } while ((*start != ' ') && space_max);
1024         start++;
1025         up  = simple_strtoul(start, NULL, 10);
1026
1027         do {
1028                 start++;
1029                 space_max--;
1030         } while ((*start != ' ') && space_max);
1031         start++;
1032         down = simple_strtoul(start, NULL, 10);
1033
1034         do {
1035                 start++;
1036                 space_max--;
1037         } while ((*start != ' ') && space_max);
1038         start++;
1039         global = simple_strtoul(start, NULL, 10);
1040
1041         if (dev_drv->ops->set_dsp_cabc)
1042                 ret = dev_drv->ops->set_dsp_cabc(dev_drv, mode,
1043                                                  calc, up, down, global);
1044         if (ret < 0)
1045                 return ret;
1046
1047         return count;
1048 }
1049
1050 static ssize_t show_dsp_bcsh(struct device *dev,
1051                              struct device_attribute *attr, char *buf)
1052 {
1053         struct fb_info *fbi = dev_get_drvdata(dev);
1054         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1055         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1056         int brightness = 0, contrast = 0, sat_con = 0, sin_hue = 0, cos_hue = 0;
1057
1058         if (dev_drv->ops->get_dsp_bcsh_bcs) {
1059                 brightness = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv,
1060                                                             BRIGHTNESS);
1061                 contrast = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, CONTRAST);
1062                 sat_con = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, SAT_CON);
1063         }
1064         if (dev_drv->ops->get_dsp_bcsh_hue) {
1065                 sin_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_SIN);
1066                 cos_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_COS);
1067         }
1068         return snprintf(buf, PAGE_SIZE,
1069                         "brightness:%4d,contrast:%4d,sat_con:%4d,"
1070                         "sin_hue:%4d,cos_hue:%4d\n",
1071                         brightness, contrast, sat_con, sin_hue, cos_hue);
1072 }
1073
1074 static ssize_t set_dsp_bcsh(struct device *dev, struct device_attribute *attr,
1075                             const char *buf, size_t count)
1076 {
1077         struct fb_info *fbi = dev_get_drvdata(dev);
1078         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1079         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1080         int brightness, contrast, sat_con, ret = 0, sin_hue, cos_hue;
1081
1082         if (!strncmp(buf, "open", 4)) {
1083                 if (dev_drv->ops->open_bcsh)
1084                         ret = dev_drv->ops->open_bcsh(dev_drv, 1);
1085                 else
1086                         ret = -1;
1087         } else if (!strncmp(buf, "close", 5)) {
1088                 if (dev_drv->ops->open_bcsh)
1089                         ret = dev_drv->ops->open_bcsh(dev_drv, 0);
1090                 else
1091                         ret = -1;
1092         } else if (!strncmp(buf, "brightness", 10)) {
1093                 sscanf(buf, "brightness %d", &brightness);
1094                 if (unlikely(brightness > 255)) {
1095                         dev_err(fbi->dev,
1096                                 "brightness should be [0:255],now=%d\n\n",
1097                                 brightness);
1098                         brightness = 255;
1099                 }
1100                 if (dev_drv->ops->set_dsp_bcsh_bcs)
1101                         ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
1102                                                              BRIGHTNESS,
1103                                                              brightness);
1104                 else
1105                         ret = -1;
1106         } else if (!strncmp(buf, "contrast", 8)) {
1107                 sscanf(buf, "contrast %d", &contrast);
1108                 if (unlikely(contrast > 510)) {
1109                         dev_err(fbi->dev,
1110                                 "contrast should be [0:510],now=%d\n",
1111                                 contrast);
1112                         contrast = 510;
1113                 }
1114                 if (dev_drv->ops->set_dsp_bcsh_bcs)
1115                         ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
1116                                                              CONTRAST,
1117                                                              contrast);
1118                 else
1119                         ret = -1;
1120         } else if (!strncmp(buf, "sat_con", 7)) {
1121                 sscanf(buf, "sat_con %d", &sat_con);
1122                 if (unlikely(sat_con > 1015)) {
1123                         dev_err(fbi->dev,
1124                                 "sat_con should be [0:1015],now=%d\n",
1125                                 sat_con);
1126                         sat_con = 1015;
1127                 }
1128                 if (dev_drv->ops->set_dsp_bcsh_bcs)
1129                         ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
1130                                                              SAT_CON,
1131                                                              sat_con);
1132                 else
1133                         ret = -1;
1134         } else if (!strncmp(buf, "hue", 3)) {
1135                 sscanf(buf, "hue %d %d", &sin_hue, &cos_hue);
1136                 if (unlikely(sin_hue > 511 || cos_hue > 511)) {
1137                         dev_err(fbi->dev, "sin_hue=%d,cos_hue=%d\n",
1138                                 sin_hue, cos_hue);
1139                 }
1140                 if (dev_drv->ops->set_dsp_bcsh_hue)
1141                         ret = dev_drv->ops->set_dsp_bcsh_hue(dev_drv,
1142                                                              sin_hue,
1143                                                              cos_hue);
1144                 else
1145                         ret = -1;
1146         } else {
1147                 dev_info(dev, "format error\n");
1148         }
1149
1150         if (ret < 0)
1151                 return ret;
1152
1153         return count;
1154 }
1155
1156 static ssize_t show_scale(struct device *dev,
1157                           struct device_attribute *attr, char *buf)
1158 {
1159         struct fb_info *fbi = dev_get_drvdata(dev);
1160         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1161         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1162
1163         return snprintf(buf, PAGE_SIZE,
1164                 "xscale=%d yscale=%d\nleft=%d top=%d right=%d bottom=%d\n",
1165                 (dev_drv->overscan.left + dev_drv->overscan.right) / 2,
1166                 (dev_drv->overscan.top + dev_drv->overscan.bottom) / 2,
1167                 dev_drv->overscan.left, dev_drv->overscan.top,
1168                 dev_drv->overscan.right, dev_drv->overscan.bottom);
1169 }
1170
1171 static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
1172                          const char *buf, size_t count)
1173 {
1174         struct fb_info *fbi = dev_get_drvdata(dev);
1175         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1176         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1177         u32 left, top, right, bottom;
1178
1179         if (!strncmp(buf, "overscan", 8)) {
1180                 sscanf(buf,
1181                        "overscan %d,%d,%d,%d", &left, &top, &right, &bottom);
1182                 if (left > 0 && left <= 100)
1183                         dev_drv->overscan.left = left;
1184                 if (top > 0 && top <= 100)
1185                         dev_drv->overscan.top = top;
1186                 if (right > 0 && right <= 100)
1187                         dev_drv->overscan.right = right;
1188                 if (bottom > 0 && bottom <= 100)
1189                         dev_drv->overscan.bottom = bottom;
1190         } else if (!strncmp(buf, "left", 4)) {
1191                 sscanf(buf, "left=%d", &left);
1192                 if (left > 0 && left <= 100)
1193                         dev_drv->overscan.left = left;
1194         } else if (!strncmp(buf, "top", 3)) {
1195                 sscanf(buf, "top=%d", &top);
1196                 if (top > 0 && top <= 100)
1197                         dev_drv->overscan.top = top;
1198         } else if (!strncmp(buf, "right", 5)) {
1199                 sscanf(buf, "right=%d", &right);
1200                 if (right > 0 && right <= 100)
1201                         dev_drv->overscan.right = right;
1202         } else if (!strncmp(buf, "bottom", 6)) {
1203                 sscanf(buf, "bottom=%d", &bottom);
1204                 if (bottom > 0 && bottom <= 100)
1205                         dev_drv->overscan.bottom = bottom;
1206         } else if (!strncmp(buf, "xscale", 6)) {
1207                 sscanf(buf, "xscale=%d", &left);
1208                 if (left > 0 && left <= 100) {
1209                         dev_drv->overscan.left = left;
1210                         dev_drv->overscan.right = left;
1211                 }
1212         } else if (!strncmp(buf, "yscale", 6)) {
1213                 sscanf(buf, "yscale=%d", &left);
1214                 if (left > 0 && left <= 100) {
1215                         dev_drv->overscan.top = left;
1216                         dev_drv->overscan.bottom = left;
1217                 }
1218         } else {
1219                 sscanf(buf, "%d", &left);
1220                 if (left > 0 && left <= 100) {
1221                         dev_drv->overscan.left = left;
1222                         dev_drv->overscan.right = left;
1223                         dev_drv->overscan.top = left;
1224                         dev_drv->overscan.bottom = left;
1225                 }
1226         }
1227
1228         if (dev_drv->ops->set_overscan)
1229                 dev_drv->ops->set_overscan(dev_drv, &dev_drv->overscan);
1230
1231         return count;
1232 }
1233
1234 static ssize_t show_lcdc_id(struct device *dev,
1235                             struct device_attribute *attr,
1236                             char *buf)
1237 {
1238         struct fb_info *fbi = dev_get_drvdata(dev);
1239         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1240         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1241
1242         return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->id);
1243 }
1244
1245 static ssize_t show_dsp_mode(struct device *dev,
1246                             struct device_attribute *attr,
1247                             char *buf)
1248 {
1249         struct fb_info *fbi = dev_get_drvdata(dev);
1250         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1251         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1252
1253         return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->dsp_mode);
1254 }
1255
1256 static ssize_t show_hot_plug_state(struct device *dev,
1257                             struct device_attribute *attr,
1258                             char *buf)
1259 {
1260         struct fb_info *fbi = dev_get_drvdata(dev);
1261         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1262         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1263
1264         return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->hot_plug_state);
1265 }
1266
1267 static ssize_t show_win_property(struct device *dev,
1268                                  struct device_attribute *attr,
1269                                  char *buf)
1270 {
1271         struct fb_info *fbi = dev_get_drvdata(dev);
1272         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1273         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1274         int win_id = 0;
1275
1276         win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
1277         return snprintf(buf, PAGE_SIZE,
1278                         "feature: %d, max_input_x: %d, max_input_y: %d\n",
1279                         dev_drv->win[win_id]->property.feature,
1280                         dev_drv->win[win_id]->property.max_input_x,
1281                         dev_drv->win[win_id]->property.max_input_y);
1282 }
1283
1284 static ssize_t set_car_reverse(struct device *dev,
1285                                struct device_attribute *attr,
1286                                const char *buf, size_t count)
1287 {
1288         struct fb_info *fbi = dev_get_drvdata(dev);
1289         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
1290         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1291         u32 status;
1292         int ret;
1293
1294         ret = kstrtou32(buf, 0, &status);
1295         if (ret)
1296                 return ret;
1297         rk_fb_set_car_reverse_status(dev_drv, status);
1298
1299         return count;
1300 }
1301
1302 static struct device_attribute rkfb_attrs[] = {
1303         __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
1304         __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
1305         __ATTR(disp_info, S_IRUGO, show_disp_info, NULL),
1306         __ATTR(dump_buf, S_IRUGO | S_IWUSR, show_dump_buffer, set_dump_buffer),
1307         __ATTR(dsp_buf, S_IRUGO | S_IWUSR, show_dsp_buffer, set_dsp_buffer),
1308         __ATTR(screen_info, S_IRUGO | S_IWUSR,
1309                show_screen_info, set_screen_info),
1310         __ATTR(dual_mode, S_IRUGO, show_dual_mode, NULL),
1311         __ATTR(enable, S_IRUGO | S_IWUSR, show_fb_state, set_fb_state),
1312         __ATTR(overlay, S_IRUGO | S_IWUSR, show_overlay, set_overlay),
1313         __ATTR(fps, S_IRUGO | S_IWUSR, show_fps, set_fps),
1314         __ATTR(map, S_IRUGO | S_IWUSR, show_fb_win_map, set_fb_win_map),
1315         __ATTR(dsp_lut, S_IRUGO | S_IWUSR, show_dsp_lut, set_dsp_lut),
1316         __ATTR(cabc_lut, S_IRUGO | S_IWUSR, show_cabc_lut, set_cabc_lut),
1317         __ATTR(hwc_lut, S_IRUGO | S_IWUSR, show_hwc_lut, set_hwc_lut),
1318         __ATTR(cabc, S_IRUGO | S_IWUSR, show_dsp_cabc, set_dsp_cabc),
1319         __ATTR(bcsh, S_IRUGO | S_IWUSR, show_dsp_bcsh, set_dsp_bcsh),
1320         __ATTR(scale, S_IRUGO | S_IWUSR, show_scale, set_scale),
1321         __ATTR(lcdcid, S_IRUGO, show_lcdc_id, NULL),
1322         __ATTR(win_property, S_IRUGO, show_win_property, NULL),
1323         __ATTR(car_reverse, S_IWUSR, NULL, set_car_reverse),
1324         __ATTR(dsp_mode, S_IRUGO, show_dsp_mode, NULL),
1325         __ATTR(hot_plug_state, S_IRUGO, show_hot_plug_state, NULL),
1326 };
1327
1328 int rkfb_create_sysfs(struct fb_info *fbi)
1329 {
1330         int r, t;
1331
1332         for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++) {
1333                 r = device_create_file(fbi->dev, &rkfb_attrs[t]);
1334                 if (r) {
1335                         dev_err(fbi->dev, "failed to create sysfs " "file\n");
1336                         return r;
1337                 }
1338         }
1339
1340         return 0;
1341 }
1342
1343 void rkfb_remove_sysfs(struct rk_fb *rk_fb)
1344 {
1345         int i, t;
1346
1347         for (i = 0; i < rk_fb->num_fb; i++) {
1348                 for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++)
1349                         device_remove_file(rk_fb->fb[i]->dev, &rkfb_attrs[t]);
1350         }
1351 }