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