2 * linux/drivers/video/rockchip/rkfb-sysfs.c
4 * Copyright (C) 2012 Rockchip Corporation
5 * Author: yxj<yxj@rock-chips.com>
7 * Some code and ideas taken from
8 *drivers/video/omap2/omapfb/omapfb-sys.c
9 *driver by Tomi Valkeinen.
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.
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
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/>.
26 #include <linux/sysfs.h>
27 #include <linux/device.h>
28 #include <linux/uaccess.h>
29 #include <linux/platform_device.h>
30 #include <linux/kernel.h>
32 #include <linux/vmalloc.h>
33 #include <asm/div64.h>
34 #include <linux/rk_screen.h>
35 #include <linux/rk_fb.h>
36 #if defined(CONFIG_ION_ROCKCHIP)
37 #include <linux/rockchip_ion.h>
39 #include "bmp_helper.h"
41 static char *get_format_str(enum data_format format)
70 return "FBDC_RGB_565";
72 return "FBDC_ARGB_888";
74 return "FBDC_RGBX_888";
80 static ssize_t show_screen_info(struct device *dev,
81 struct device_attribute *attr, char *buf)
83 struct fb_info *fbi = dev_get_drvdata(dev);
84 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
85 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
86 struct rk_screen *screen = dev_drv->cur_screen;
88 u32 x = screen->mode.left_margin + screen->mode.right_margin +
89 screen->mode.xres + screen->mode.hsync_len;
90 u32 y = screen->mode.upper_margin + screen->mode.lower_margin +
91 screen->mode.yres + screen->mode.vsync_len;
92 u64 ft = (u64)x * y * (dev_drv->pixclock);
95 fps = div64_u64(1000000000000llu, ft);
96 return snprintf(buf, PAGE_SIZE, "xres:%d\nyres:%d\nfps:%d\n",
97 screen->mode.xres, screen->mode.yres, fps);
100 static ssize_t show_disp_info(struct device *dev,
101 struct device_attribute *attr, char *buf)
103 struct fb_info *fbi = dev_get_drvdata(dev);
104 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
105 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
106 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
108 if (dev_drv->ops->get_disp_info)
109 return dev_drv->ops->get_disp_info(dev_drv, buf, win_id);
114 static void fill_buffer(void *handle, void *vaddr, int size)
116 struct file *filp = handle;
119 vfs_write(filp, vaddr, size, &filp->f_pos);
122 static int dump_win(struct rk_fb *rk_fb, struct rk_fb_reg_area_data *area_data,
123 u8 data_format, int win_id, int area_id, bool is_bmp)
125 void __iomem *vaddr = NULL;
129 struct ion_handle *ion_handle = area_data->ion_handle;
130 int width = area_data->xvir;
131 int height = area_data->yvir;
134 vaddr = ion_map_kernel(rk_fb->ion_client, ion_handle);
135 } else if (area_data->smem_start && area_data->smem_start != -1) {
137 unsigned int nr_pages;
141 start = area_data->smem_start;
142 nr_pages = width * height * 3 / 2 / PAGE_SIZE;
143 pages = kzalloc(sizeof(struct page) * nr_pages,GFP_KERNEL);
144 while (i < nr_pages) {
145 pages[i] = phys_to_page(start);
149 vaddr = vmap(pages, nr_pages, VM_MAP,
150 pgprot_writecombine(PAGE_KERNEL));
152 pr_err("failed to vmap phy addr %lx\n",
153 area_data->smem_start);
160 snprintf(name, 100, "/data/win%d_%d_%dx%d_%s.%s", win_id, area_id,
161 width, height, get_format_str(data_format),
162 is_bmp ? "bmp" : "bin");
164 pr_info("dump win == > /data/win%d_%d_%dx%d_%s.%s\n", win_id, area_id,
165 width, height, get_format_str(data_format),
166 is_bmp ? "bmp" : "bin");
168 filp = filp_open(name, O_RDWR | O_CREAT, 0x664);
170 printk("fail to create %s\n", name);
176 bmpencoder(vaddr, width, height,
177 data_format, filp, fill_buffer);
179 fill_buffer(filp, vaddr, width * height * 4);
184 ion_unmap_kernel(rk_fb->ion_client, ion_handle);
186 ion_handle_put(ion_handle);
191 filp_close(filp, NULL);
196 static ssize_t set_dump_info(struct device *dev, struct device_attribute *attr,
197 const char *buf, size_t count)
200 struct fb_info *fbi = dev_get_drvdata(dev);
201 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
202 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
203 struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
204 struct rk_fb_reg_data *front_regs;
205 struct rk_fb_reg_win_data *win_data;
206 struct rk_fb_reg_area_data *area_data;
210 if (!rk_fb->ion_client)
213 front_regs = kmalloc(sizeof(*front_regs), GFP_KERNEL);
217 mutex_lock(&dev_drv->front_lock);
219 if (!dev_drv->front_regs) {
220 mutex_unlock(&dev_drv->front_lock);
223 memcpy(front_regs, dev_drv->front_regs, sizeof(*front_regs));
224 for (i = 0; i < front_regs->win_num; i++) {
225 for (j = 0; j < RK_WIN_MAX_AREA; j++) {
226 win_data = &front_regs->reg_win_data[i];
227 area_data = &win_data->reg_area_data[j];
228 if (area_data->ion_handle) {
229 ion_handle_get(area_data->ion_handle);
233 mutex_unlock(&dev_drv->front_lock);
235 if (strncmp(buf, "bin", 3))
240 for (i = 0; i < front_regs->win_num; i++) {
241 for (j = 0; j < RK_WIN_MAX_AREA; j++) {
242 win_data = &front_regs->reg_win_data[i];
243 if (dump_win(rk_fb, &win_data->reg_area_data[j],
244 win_data->reg_area_data[i].data_format,i,
254 static ssize_t show_phys(struct device *dev,
255 struct device_attribute *attr, char *buf)
257 struct fb_info *fbi = dev_get_drvdata(dev);
259 return snprintf(buf, PAGE_SIZE, "0x%lx-----0x%x\n",
260 fbi->fix.smem_start, fbi->fix.smem_len);
263 static ssize_t show_virt(struct device *dev,
264 struct device_attribute *attr, char *buf)
266 struct fb_info *fbi = dev_get_drvdata(dev);
268 return snprintf(buf, PAGE_SIZE, "0x%p-----0x%x\n",
269 fbi->screen_base, fbi->fix.smem_len);
272 static ssize_t show_fb_state(struct device *dev,
273 struct device_attribute *attr, char *buf)
275 struct fb_info *fbi = dev_get_drvdata(dev);
276 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
277 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
279 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
280 int state = dev_drv->ops->get_win_state(dev_drv, win_id);
282 return snprintf(buf, PAGE_SIZE, "%s\n", state ? "enabled" : "disabled");
285 static ssize_t show_dual_mode(struct device *dev,
286 struct device_attribute *attr, char *buf)
288 struct fb_info *fbi = dev_get_drvdata(dev);
289 struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
290 int mode = rk_fb->disp_mode;
292 return snprintf(buf, PAGE_SIZE, "%d\n", mode);
295 static ssize_t set_fb_state(struct device *dev, struct device_attribute *attr,
296 const char *buf, size_t count)
298 struct fb_info *fbi = dev_get_drvdata(dev);
299 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
300 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
301 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
305 ret = kstrtoint(buf, 0, &state);
308 dev_drv->ops->open(dev_drv, win_id, state);
310 dev_drv->ops->set_par(dev_drv, win_id);
311 dev_drv->ops->pan_display(dev_drv, win_id);
312 dev_drv->ops->cfg_done(dev_drv);
317 static ssize_t show_overlay(struct device *dev,
318 struct device_attribute *attr, char *buf)
320 struct fb_info *fbi = dev_get_drvdata(dev);
321 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
322 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
325 if (dev_drv->ops->ovl_mgr)
326 ovl = dev_drv->ops->ovl_mgr(dev_drv, 0, 0);
331 return snprintf(buf, PAGE_SIZE, "%s\n",
332 ovl ? "win0 on the top of win1" :
333 "win1 on the top of win0");
336 static ssize_t set_overlay(struct device *dev, struct device_attribute *attr,
337 const char *buf, size_t count)
339 struct fb_info *fbi = dev_get_drvdata(dev);
340 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
341 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
345 ret = kstrtou32(buf, 0, &ovl);
348 if (dev_drv->ops->ovl_mgr)
349 ret = dev_drv->ops->ovl_mgr(dev_drv, ovl, 1);
356 static ssize_t show_fps(struct device *dev,
357 struct device_attribute *attr, char *buf)
359 struct fb_info *fbi = dev_get_drvdata(dev);
360 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
361 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
364 if (dev_drv->ops->fps_mgr)
365 fps = dev_drv->ops->fps_mgr(dev_drv, 0, 0);
369 return snprintf(buf, PAGE_SIZE, "fps:%d\n", fps);
372 static ssize_t set_fps(struct device *dev, struct device_attribute *attr,
373 const char *buf, size_t count)
375 struct fb_info *fbi = dev_get_drvdata(dev);
376 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
377 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
381 ret = kstrtou32(buf, 0, &fps);
385 if (fps == 0 || fps > 60) {
386 dev_info(dev, "unsupport fps value,pelase set 1~60\n");
390 if (dev_drv->ops->fps_mgr)
391 ret = dev_drv->ops->fps_mgr(dev_drv, fps, 1);
398 static ssize_t show_fb_win_map(struct device *dev,
399 struct device_attribute *attr, char *buf)
402 struct fb_info *fbi = dev_get_drvdata(dev);
403 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
404 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
406 mutex_lock(&dev_drv->fb_win_id_mutex);
408 snprintf(buf, PAGE_SIZE, "fb0:win%d\nfb1:win%d\nfb2:win%d\n",
409 dev_drv->fb0_win_id, dev_drv->fb1_win_id,
410 dev_drv->fb2_win_id);
411 mutex_unlock(&dev_drv->fb_win_id_mutex);
416 static ssize_t set_fb_win_map(struct device *dev, struct device_attribute *attr,
417 const char *buf, size_t count)
419 struct fb_info *fbi = dev_get_drvdata(dev);
420 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
421 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
425 ret = kstrtou32(buf, 0, &order);
426 if ((order != FB0_WIN2_FB1_WIN1_FB2_WIN0) &&
427 (order != FB0_WIN1_FB1_WIN2_FB2_WIN0) &&
428 (order != FB0_WIN2_FB1_WIN0_FB2_WIN1) &&
429 (order != FB0_WIN0_FB1_WIN2_FB2_WIN1) &&
430 (order != FB0_WIN0_FB1_WIN1_FB2_WIN2) &&
431 (order != FB0_WIN1_FB1_WIN0_FB2_WIN2)) {
432 dev_info(dev, "un supported map\n"
433 "you can use the following order:\n" "201:\n"
434 "fb0-win1\n" "fb1-win0\n" "fb2-win2\n" "210:\n"
435 "fb0-win0\n" "fb1-win1\n" "fb2-win2\n" "120:\n"
436 "fb0-win0\n" "fb1-win2\n" "fb2-win1\n" "102:\n"
437 "fb0-win2\n" "fb1-win0\n" "fb2-win1\n" "021:\n"
438 "fb0-win1\n" "fb1-win2\n" "fb2-win0\n" "012:\n"
439 "fb0-win2\n" "fb1-win1\n" "fb2-win0\n");
442 if (dev_drv->ops->fb_win_remap)
443 dev_drv->ops->fb_win_remap(dev_drv, order);
449 static ssize_t show_hwc_lut(struct device *dev,
450 struct device_attribute *attr, char *buf)
455 static ssize_t set_hwc_lut(struct device *dev, struct device_attribute *attr,
456 const char *buf, size_t count)
459 const char *start = buf;
463 struct fb_info *fbi = dev_get_drvdata(dev);
464 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
465 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
467 /*printk("count:%d\n>>%s\n\n",count,start);*/
468 for (i = 0; i < 256; i++) {
469 space_max = 15; /*max space number 15*/
470 temp = simple_strtoul(start, NULL, 16);
475 } while ((*start != ' ') && space_max);
483 for (i = 0; i < 16; i++) {
484 for (j = 0; j < 16; j++)
485 printk("0x%08x ", hwc_lut[i * 16 + j]);
489 if (dev_drv->ops->set_hwc_lut)
490 dev_drv->ops->set_hwc_lut(dev_drv, hwc_lut, 1);
495 static ssize_t show_cabc_lut(struct device *dev,
496 struct device_attribute *attr, char *buf)
501 static ssize_t set_cabc_lut(struct device *dev, struct device_attribute *attr,
502 const char *buf, size_t count)
505 const char *start = buf;
509 struct fb_info *fbi = dev_get_drvdata(dev);
510 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
511 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
513 for (i = 0; i < 256; i++) {
515 /*init by default value*/
516 cabc_lut[i] = temp + (temp << 8) + (temp << 16);
518 for (i = 0; i < 256; i++) {
519 space_max = 10; /*max space number 10*/
520 temp = simple_strtoul(start, NULL, 10);
525 } while ((*start != ' ') && space_max);
532 if (dev_drv->ops->set_cabc_lut)
533 dev_drv->ops->set_cabc_lut(dev_drv, cabc_lut);
539 static ssize_t show_dsp_lut(struct device *dev,
540 struct device_attribute *attr, char *buf)
545 static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
546 const char *buf, size_t count)
549 const char *start = buf;
553 struct fb_info *fbi = dev_get_drvdata(dev);
554 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
555 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
557 for (i = 0; i < 256; i++) {
559 /*init by default value*/
560 dsp_lut[i] = temp + (temp << 8) + (temp << 16);
562 /*printk("count:%d\n>>%s\n\n",count,start);*/
563 for (i = 0; i < 256; i++) {
564 space_max = 10; /*max space number 10*/
565 temp = simple_strtoul(start, NULL, 10);
570 } while ((*start != ' ') && space_max);
578 for (i = 0; i < 16; i++) {
579 for (j = 0; j < 16; j++)
580 printk("0x%08x ", dsp_lut[i * 16 + j]);
584 if (dev_drv->ops->set_dsp_lut)
585 dev_drv->ops->set_dsp_lut(dev_drv, dsp_lut);
590 static ssize_t show_dsp_cabc(struct device *dev,
591 struct device_attribute *attr, char *buf)
593 struct fb_info *fbi = dev_get_drvdata(dev);
594 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
595 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
597 return snprintf(buf, PAGE_SIZE, "cabc mode=%d\n",
602 static ssize_t set_dsp_cabc(struct device *dev, struct device_attribute *attr,
603 const char *buf, size_t count)
605 struct fb_info *fbi = dev_get_drvdata(dev);
606 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
607 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
608 int space_max, ret, mode = 0, calc = 0,up = 0, down = 0, global = 0;
609 const char *start = buf;
611 space_max = 10; /*max space number 10*/
612 mode = simple_strtoul(start, NULL, 10);
616 } while ((*start != ' ') && space_max);
618 calc = simple_strtoul(start, NULL, 10);
623 } while ((*start != ' ') && space_max);
625 up = simple_strtoul(start, NULL, 10);
630 } while ((*start != ' ') && space_max);
632 down = simple_strtoul(start, NULL, 10);
637 } while ((*start != ' ') && space_max);
639 global = simple_strtoul(start, NULL, 10);
641 if (dev_drv->ops->set_dsp_cabc)
642 ret = dev_drv->ops->set_dsp_cabc(dev_drv, mode, calc, up, down, global);
649 static ssize_t show_dsp_bcsh(struct device *dev,
650 struct device_attribute *attr, char *buf)
652 struct fb_info *fbi = dev_get_drvdata(dev);
653 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
654 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
655 int brightness, contrast, sat_con, sin_hue, cos_hue;
657 if (dev_drv->ops->get_dsp_bcsh_bcs) {
658 brightness = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv,
660 contrast = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, CONTRAST);
661 sat_con = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, SAT_CON);
663 if (dev_drv->ops->get_dsp_bcsh_hue) {
664 sin_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_SIN);
665 cos_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_COS);
667 return snprintf(buf, PAGE_SIZE,
668 "brightness:%4d,contrast:%4d,sat_con:%4d,"
669 "sin_hue:%4d,cos_hue:%4d\n",
670 brightness, contrast, sat_con, sin_hue, cos_hue);
673 static ssize_t set_dsp_bcsh(struct device *dev, struct device_attribute *attr,
674 const char *buf, size_t count)
676 struct fb_info *fbi = dev_get_drvdata(dev);
677 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
678 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
679 int brightness, contrast, sat_con, ret = 0, sin_hue, cos_hue;
681 if (!strncmp(buf, "open", 4)) {
682 if (dev_drv->ops->open_bcsh)
683 ret = dev_drv->ops->open_bcsh(dev_drv, 1);
686 } else if (!strncmp(buf, "close", 5)) {
687 if (dev_drv->ops->open_bcsh)
688 ret = dev_drv->ops->open_bcsh(dev_drv, 0);
691 } else if (!strncmp(buf, "brightness", 10)) {
692 sscanf(buf, "brightness %d", &brightness);
693 if (unlikely(brightness > 255)) {
695 "brightness should be [0:255],now=%d\n\n",
699 if (dev_drv->ops->set_dsp_bcsh_bcs)
700 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
705 } else if (!strncmp(buf, "contrast", 8)) {
706 sscanf(buf, "contrast %d", &contrast);
707 if (unlikely(contrast > 510)) {
709 "contrast should be [0:510],now=%d\n",
713 if (dev_drv->ops->set_dsp_bcsh_bcs)
714 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
719 } else if (!strncmp(buf, "sat_con", 7)) {
720 sscanf(buf, "sat_con %d", &sat_con);
721 if (unlikely(sat_con > 1015)) {
723 "sat_con should be [0:1015],now=%d\n",
727 if (dev_drv->ops->set_dsp_bcsh_bcs)
728 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
733 } else if (!strncmp(buf, "hue", 3)) {
734 sscanf(buf, "hue %d %d", &sin_hue, &cos_hue);
735 if (unlikely(sin_hue > 511 || cos_hue > 511)) {
736 dev_err(fbi->dev, "sin_hue=%d,cos_hue=%d\n",
739 if (dev_drv->ops->set_dsp_bcsh_hue)
740 ret = dev_drv->ops->set_dsp_bcsh_hue(dev_drv,
746 dev_info(dev, "format error\n");
755 static ssize_t show_scale(struct device *dev,
756 struct device_attribute *attr, char *buf)
758 struct fb_info *fbi = dev_get_drvdata(dev);
759 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
760 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
761 struct rk_screen *screen = dev_drv->cur_screen;
763 return snprintf(buf, PAGE_SIZE,
764 "xscale=%d yscale=%d\nleft=%d top=%d right=%d bottom=%d\n",
765 (screen->overscan.left + screen->overscan.right)/2,
766 (screen->overscan.top + screen->overscan.bottom)/2,
767 screen->overscan.left, screen->overscan.top,
768 screen->overscan.right, screen->overscan.bottom);
771 static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
772 const char *buf, size_t count)
774 struct fb_info *fbi = dev_get_drvdata(dev);
775 struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
776 struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
777 struct rk_screen *screen = dev_drv->cur_screen;
778 u32 left, top, right, bottom;
780 if (!strncmp(buf, "overscan", 8)) {
782 "overscan %d,%d,%d,%d", &left, &top, &right, &bottom);
783 if (left > 0 && left <= 100)
784 screen->overscan.left = left;
785 if (top > 0 && top <= 100)
786 screen->overscan.top = top;
787 if (right > 0 && right <= 100)
788 screen->overscan.right = right;
789 if (bottom > 0 && bottom <= 100)
790 screen->overscan.bottom = bottom;
791 } else if (!strncmp(buf, "left", 4)) {
792 sscanf(buf, "left=%d", &left);
793 if (left > 0 && left <= 100)
794 screen->overscan.left = left;
795 } else if (!strncmp(buf, "top", 3)) {
796 sscanf(buf, "top=%d", &top);
797 if (top > 0 && top <= 100)
798 screen->overscan.top = top;
799 } else if (!strncmp(buf, "right", 5)) {
800 sscanf(buf, "right=%d", &right);
801 if (right > 0 && right <= 100)
802 screen->overscan.right = right;
803 } else if (!strncmp(buf, "bottom", 6)) {
804 sscanf(buf, "bottom=%d", &bottom);
805 if (bottom > 0 && bottom <= 100)
806 screen->overscan.bottom = bottom;
807 } else if (!strncmp(buf, "xscale", 6)) {
808 sscanf(buf, "xscale=%d", &left);
809 if (left > 0 && left <= 100) {
810 screen->overscan.left = left;
811 screen->overscan.right = left;
813 } else if (!strncmp(buf, "yscale", 6)) {
814 sscanf(buf, "yscale=%d", &left);
815 if (left > 0 && left <= 100) {
816 screen->overscan.top = left;
817 screen->overscan.bottom = left;
820 sscanf(buf, "%d", &left);
821 if (left > 0 && left <= 100) {
822 screen->overscan.left = left;
823 screen->overscan.right = left;
824 screen->overscan.top = left;
825 screen->overscan.bottom = left;
829 if (dev_drv->ops->set_overscan)
830 dev_drv->ops->set_overscan(dev_drv, &screen->overscan);
835 static struct device_attribute rkfb_attrs[] = {
836 __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
837 __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
838 __ATTR(disp_info, S_IRUGO | S_IWUSR, show_disp_info, set_dump_info),
839 __ATTR(screen_info, S_IRUGO, show_screen_info, NULL),
840 __ATTR(dual_mode, S_IRUGO, show_dual_mode, NULL),
841 __ATTR(enable, S_IRUGO | S_IWUSR, show_fb_state, set_fb_state),
842 __ATTR(overlay, S_IRUGO | S_IWUSR, show_overlay, set_overlay),
843 __ATTR(fps, S_IRUGO | S_IWUSR, show_fps, set_fps),
844 __ATTR(map, S_IRUGO | S_IWUSR, show_fb_win_map, set_fb_win_map),
845 __ATTR(dsp_lut, S_IRUGO | S_IWUSR, show_dsp_lut, set_dsp_lut),
846 __ATTR(cabc_lut, S_IRUGO | S_IWUSR, show_cabc_lut, set_cabc_lut),
847 __ATTR(hwc_lut, S_IRUGO | S_IWUSR, show_hwc_lut, set_hwc_lut),
848 __ATTR(cabc, S_IRUGO | S_IWUSR, show_dsp_cabc, set_dsp_cabc),
849 __ATTR(bcsh, S_IRUGO | S_IWUSR, show_dsp_bcsh, set_dsp_bcsh),
850 __ATTR(scale, S_IRUGO | S_IWUSR, show_scale, set_scale),
853 int rkfb_create_sysfs(struct fb_info *fbi)
857 for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++) {
858 r = device_create_file(fbi->dev, &rkfb_attrs[t]);
860 dev_err(fbi->dev, "failed to create sysfs " "file\n");
868 void rkfb_remove_sysfs(struct rk_fb *rk_fb)
872 for (i = 0; i < rk_fb->num_fb; i++) {
873 for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++)
874 device_remove_file(rk_fb->fb[i]->dev, &rkfb_attrs[t]);