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