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 <asm/div64.h>
33 #include <linux/rk_screen.h>
34 #include <linux/rk_fb.h>
36 static ssize_t show_screen_info(struct device *dev,
37 struct device_attribute *attr, char *buf)
39 struct fb_info *fbi = dev_get_drvdata(dev);
40 struct rk_lcdc_driver *dev_drv = (struct rk_lcdc_driver *)fbi->par;
41 struct rk_screen *screen = dev_drv->screen0;
43 u32 x = screen->mode.left_margin + screen->mode.right_margin +
44 screen->mode.xres + screen->mode.hsync_len;
45 u32 y = screen->mode.upper_margin + screen->mode.lower_margin +
46 screen->mode.yres + screen->mode.vsync_len;
47 u64 ft = (u64)x * y * (dev_drv->pixclock);
49 fps = div64_u64(1000000000000llu, ft);
50 return snprintf(buf, PAGE_SIZE, "xres:%d\nyres:%d\nfps:%d\n",
51 screen->mode.xres, screen->mode.yres, fps);
54 static ssize_t show_disp_info(struct device *dev,
55 struct device_attribute *attr, char *buf)
57 struct fb_info *fbi = dev_get_drvdata(dev);
58 struct rk_lcdc_driver *dev_drv = (struct rk_lcdc_driver *)fbi->par;
59 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
61 if (dev_drv->ops->get_disp_info)
62 return dev_drv->ops->get_disp_info(dev_drv, buf, win_id);
67 static ssize_t show_phys(struct device *dev,
68 struct device_attribute *attr, char *buf)
70 struct fb_info *fbi = dev_get_drvdata(dev);
72 return snprintf(buf, PAGE_SIZE, "0x%lx-----0x%x\n",
73 fbi->fix.smem_start, fbi->fix.smem_len);
76 static ssize_t show_virt(struct device *dev,
77 struct device_attribute *attr, char *buf)
79 struct fb_info *fbi = dev_get_drvdata(dev);
81 return snprintf(buf, PAGE_SIZE, "0x%p-----0x%x\n",
82 fbi->screen_base, fbi->fix.smem_len);
85 static ssize_t show_fb_state(struct device *dev,
86 struct device_attribute *attr, char *buf)
88 struct fb_info *fbi = dev_get_drvdata(dev);
89 struct rk_lcdc_driver *dev_drv =
90 (struct rk_lcdc_driver *)fbi->par;
91 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
92 int state = dev_drv->ops->get_win_state(dev_drv, win_id);
94 return snprintf(buf, PAGE_SIZE, "%s\n", state ? "enabled" : "disabled");
97 static ssize_t show_dual_mode(struct device *dev,
98 struct device_attribute *attr, char *buf)
100 struct fb_info *fbi = dev_get_drvdata(dev);
101 struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
102 int mode = rk_fb->disp_mode;
104 return snprintf(buf, PAGE_SIZE, "%d\n", mode);
107 static ssize_t set_fb_state(struct device *dev, struct device_attribute *attr,
108 const char *buf, size_t count)
110 struct fb_info *fbi = dev_get_drvdata(dev);
111 struct rk_lcdc_driver *dev_drv =
112 (struct rk_lcdc_driver *)fbi->par;
113 int win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
117 ret = kstrtoint(buf, 0, &state);
120 dev_drv->ops->open(dev_drv, win_id, state);
122 dev_drv->ops->set_par(dev_drv, win_id);
123 dev_drv->ops->pan_display(dev_drv, win_id);
124 dev_drv->ops->cfg_done(dev_drv);
129 static ssize_t show_overlay(struct device *dev,
130 struct device_attribute *attr, char *buf)
132 struct fb_info *fbi = dev_get_drvdata(dev);
133 struct rk_lcdc_driver *dev_drv =
134 (struct rk_lcdc_driver *)fbi->par;
136 ovl = dev_drv->ops->ovl_mgr(dev_drv, 0, 0);
141 return snprintf(buf, PAGE_SIZE, "%s\n",
142 ovl ? "win0 on the top of win1" :
143 "win1 on the top of win0");
146 static ssize_t set_overlay(struct device *dev, struct device_attribute *attr,
147 const char *buf, size_t count)
149 struct fb_info *fbi = dev_get_drvdata(dev);
150 struct rk_lcdc_driver *dev_drv =
151 (struct rk_lcdc_driver *)fbi->par;
155 ret = kstrtoint(buf, 0, &ovl);
159 ret = dev_drv->ops->ovl_mgr(dev_drv, ovl, 1);
166 static ssize_t show_fps(struct device *dev,
167 struct device_attribute *attr, char *buf)
169 struct fb_info *fbi = dev_get_drvdata(dev);
170 struct rk_lcdc_driver *dev_drv =
171 (struct rk_lcdc_driver *)fbi->par;
174 fps = dev_drv->ops->fps_mgr(dev_drv, 0, 0);
178 return snprintf(buf, PAGE_SIZE, "fps:%d\n", fps);
181 static ssize_t set_fps(struct device *dev, struct device_attribute *attr,
182 const char *buf, size_t count)
184 struct fb_info *fbi = dev_get_drvdata(dev);
185 struct rk_lcdc_driver *dev_drv =
186 (struct rk_lcdc_driver *)fbi->par;
190 ret = kstrtoint(buf, 0, &fps);
193 ret = dev_drv->ops->fps_mgr(dev_drv, fps, 1);
200 static ssize_t show_fb_win_map(struct device *dev,
201 struct device_attribute *attr, char *buf)
204 struct fb_info *fbi = dev_get_drvdata(dev);
205 struct rk_lcdc_driver *dev_drv =
206 (struct rk_lcdc_driver *)fbi->par;
208 mutex_lock(&dev_drv->fb_win_id_mutex);
210 snprintf(buf, PAGE_SIZE, "fb0:win%d\nfb1:win%d\nfb2:win%d\n",
211 dev_drv->fb0_win_id, dev_drv->fb1_win_id,
212 dev_drv->fb2_win_id);
213 mutex_unlock(&dev_drv->fb_win_id_mutex);
218 static ssize_t set_fb_win_map(struct device *dev, struct device_attribute *attr,
219 const char *buf, size_t count)
221 struct fb_info *fbi = dev_get_drvdata(dev);
222 struct rk_lcdc_driver *dev_drv =
223 (struct rk_lcdc_driver *)fbi->par;
227 ret = kstrtoint(buf, 0, &order);
228 if ((order != FB0_WIN2_FB1_WIN1_FB2_WIN0) &&
229 (order != FB0_WIN1_FB1_WIN2_FB2_WIN0) &&
230 (order != FB0_WIN2_FB1_WIN0_FB2_WIN1) &&
231 (order != FB0_WIN0_FB1_WIN2_FB2_WIN1) &&
232 (order != FB0_WIN0_FB1_WIN1_FB2_WIN2) &&
233 (order != FB0_WIN1_FB1_WIN0_FB2_WIN2)) {
234 printk(KERN_ERR "un supported map\n"
235 "you can use the following order:\n" "201:\n"
236 "fb0-win1\n" "fb1-win0\n" "fb2-win2\n" "210:\n"
237 "fb0-win0\n" "fb1-win1\n" "fb2-win2\n" "120:\n"
238 "fb0-win0\n" "fb1-win2\n" "fb2-win1\n" "102:\n"
239 "fb0-win2\n" "fb1-win0\n" "fb2-win1\n" "021:\n"
240 "fb0-win1\n" "fb1-win2\n" "fb2-win0\n" "012:\n"
241 "fb0-win2\n" "fb1-win1\n" "fb2-win0\n");
244 dev_drv->ops->fb_win_remap(dev_drv, order);
250 static ssize_t show_dsp_lut(struct device *dev,
251 struct device_attribute *attr, char *buf)
256 static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
257 const char *buf, size_t count)
260 const char *start = buf;
264 struct fb_info *fbi = dev_get_drvdata(dev);
265 struct rk_lcdc_driver *dev_drv =
266 (struct rk_lcdc_driver *)fbi->par;
268 for (i = 0; i < 256; i++) {
270 /*init by default value*/
271 dsp_lut[i] = temp + (temp << 8) + (temp << 16);
273 /*printk("count:%d\n>>%s\n\n",count,start);*/
274 for (i = 0; i < 256; i++) {
275 space_max = 10; /*max space number 10*/
276 temp = simple_strtoul(start, NULL, 10);
281 } while ((*start != ' ') && space_max);
289 for (i = 0; i < 16; i++) {
290 for (j = 0; j < 16; j++)
291 printk("0x%08x ", dsp_lut[i * 16 + j]);
295 dev_drv->ops->set_dsp_lut(dev_drv, dsp_lut);
300 static ssize_t show_dsp_cabc(struct device *dev,
301 struct device_attribute *attr, char *buf)
303 struct fb_info *fbi = dev_get_drvdata(dev);
304 struct rk_lcdc_driver *dev_drv =
305 (struct rk_lcdc_driver *)fbi->par;
307 return snprintf(buf, PAGE_SIZE, "cabc mode=%d\n",
312 static ssize_t set_dsp_cabc(struct device *dev, struct device_attribute *attr,
313 const char *buf, size_t count)
315 struct fb_info *fbi = dev_get_drvdata(dev);
316 struct rk_lcdc_driver *dev_drv =
317 (struct rk_lcdc_driver *)fbi->par;
320 ret = kstrtoint(buf, 0, &mode);
324 ret = dev_drv->ops->set_dsp_cabc(dev_drv, mode);
331 static ssize_t show_dsp_bcsh(struct device *dev,
332 struct device_attribute *attr, char *buf)
334 struct fb_info *fbi = dev_get_drvdata(dev);
335 struct rk_lcdc_driver *dev_drv =
336 (struct rk_lcdc_driver *)fbi->par;
337 int brightness, contrast, sat_con, sin_hue, cos_hue;
339 if (dev_drv->ops->get_dsp_bcsh_bcs) {
340 brightness = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv,
342 contrast = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, CONTRAST);
343 sat_con = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv, SAT_CON);
345 if (dev_drv->ops->get_dsp_bcsh_hue) {
346 sin_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_SIN);
347 cos_hue = dev_drv->ops->get_dsp_bcsh_hue(dev_drv, H_COS);
349 return snprintf(buf, PAGE_SIZE,
350 "brightness:%4d,contrast:%4d,sat_con:%4d,"
351 "sin_hue:%4d,cos_hue:%4d\n",
352 brightness, contrast, sat_con, sin_hue, cos_hue);
355 static ssize_t set_dsp_bcsh(struct device *dev, struct device_attribute *attr,
356 const char *buf, size_t count)
358 struct fb_info *fbi = dev_get_drvdata(dev);
359 struct rk_lcdc_driver *dev_drv =
360 (struct rk_lcdc_driver *)fbi->par;
361 int brightness, contrast, sat_con, ret, sin_hue, cos_hue;
363 if (!strncmp(buf, "open", 4)) {
364 if (dev_drv->ops->open_bcsh)
365 ret = dev_drv->ops->open_bcsh(dev_drv, 1);
368 } else if (!strncmp(buf, "close", 5)) {
369 if (dev_drv->ops->open_bcsh)
370 ret = dev_drv->ops->open_bcsh(dev_drv, 0);
373 } else if (!strncmp(buf, "brightness", 10)) {
374 sscanf(buf, "brightness %d", &brightness);
375 if (unlikely(brightness > 255)) {
377 "brightness should be [0:255],now=%d\n\n",
381 if (dev_drv->ops->set_dsp_bcsh_bcs)
382 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
387 } else if (!strncmp(buf, "contrast", 8)) {
388 sscanf(buf, "contrast %d", &contrast);
389 if (unlikely(contrast > 510)) {
391 "contrast should be [0:510],now=%d\n",
395 if (dev_drv->ops->set_dsp_bcsh_bcs)
396 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
401 } else if (!strncmp(buf, "sat_con", 7)) {
402 sscanf(buf, "sat_con %d", &sat_con);
403 if (unlikely(sat_con > 1015)) {
405 "sat_con should be [0:1015],now=%d\n",
409 if (dev_drv->ops->set_dsp_bcsh_bcs)
410 ret = dev_drv->ops->set_dsp_bcsh_bcs(dev_drv,
415 } else if (!strncmp(buf, "hue", 3)) {
416 sscanf(buf, "hue %d %d", &sin_hue, &cos_hue);
417 if (unlikely(sin_hue > 511 || cos_hue > 511)) {
418 dev_err(fbi->dev, "sin_hue=%d,cos_hue=%d\n",
421 if (dev_drv->ops->set_dsp_bcsh_hue)
422 ret = dev_drv->ops->set_dsp_bcsh_hue(dev_drv,
428 printk("format error\n");
437 static ssize_t show_scale(struct device *dev,
438 struct device_attribute *attr, char *buf)
440 struct fb_info *fbi = dev_get_drvdata(dev);
441 struct rk_lcdc_driver *dev_drv =
442 (struct rk_lcdc_driver *)fbi->par;
443 struct rk_screen *screen = dev_drv->cur_screen;
445 return snprintf(buf, PAGE_SIZE,
446 "xscale=%d yscale=%d\nleft=%d top=%d right=%d bottom=%d\n",
447 (screen->overscan.left + screen->overscan.right)/2,
448 (screen->overscan.top + screen->overscan.bottom)/2,
449 screen->overscan.left, screen->overscan.top,
450 screen->overscan.right, screen->overscan.bottom);
453 static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
454 const char *buf, size_t count)
456 struct fb_info *fbi = dev_get_drvdata(dev);
457 struct rk_lcdc_driver *dev_drv =
458 (struct rk_lcdc_driver *)fbi->par;
459 struct rk_screen *screen = dev_drv->cur_screen;
460 u32 left, top, right, bottom;
462 if (!strncmp(buf, "overscan", 8)) {
464 "overscan %d,%d,%d,%d", &left, &top, &right, &bottom);
465 if (left > 0 && left <= 100)
466 screen->overscan.left = left;
467 if (top > 0 && top <= 100)
468 screen->overscan.top = top;
469 if (right > 0 && right <= 100)
470 screen->overscan.right = right;
471 if (bottom > 0 && bottom <= 100)
472 screen->overscan.bottom = bottom;
473 } else if (!strncmp(buf, "left", 4)) {
474 sscanf(buf, "left=%d", &left);
475 if (left > 0 && left <= 100)
476 screen->overscan.left = left;
477 } else if (!strncmp(buf, "top", 3)) {
478 sscanf(buf, "top=%d", &top);
479 if (top > 0 && top <= 100)
480 screen->overscan.top = top;
481 } else if (!strncmp(buf, "right", 5)) {
482 sscanf(buf, "right=%d", &right);
483 if (right > 0 && right <= 100)
484 screen->overscan.right = right;
485 } else if (!strncmp(buf, "bottom", 6)) {
486 sscanf(buf, "bottom=%d", &bottom);
487 if (bottom > 0 && bottom <= 100)
488 screen->overscan.bottom = bottom;
489 } else if (!strncmp(buf, "xscale", 6)) {
490 sscanf(buf, "xscale=%d", &left);
491 if (left > 0 && left <= 100) {
492 screen->overscan.left = left;
493 screen->overscan.right = left;
495 } else if (!strncmp(buf, "yscale", 6)) {
496 sscanf(buf, "yscale=%d", &left);
497 if (left > 0 && left <= 100) {
498 screen->overscan.top = left;
499 screen->overscan.bottom = left;
502 sscanf(buf, "%d", &left);
503 if (left > 0 && left <= 100) {
504 screen->overscan.left = left;
505 screen->overscan.right = left;
506 screen->overscan.top = left;
507 screen->overscan.bottom = left;
511 dev_drv->ops->load_screen(dev_drv, 1);
512 dev_drv->ops->cfg_done(dev_drv);
516 static struct device_attribute rkfb_attrs[] = {
517 __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
518 __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
519 __ATTR(disp_info, S_IRUGO, show_disp_info, NULL),
520 __ATTR(screen_info, S_IRUGO, show_screen_info, NULL),
521 __ATTR(dual_mode, S_IRUGO, show_dual_mode, NULL),
522 __ATTR(enable, S_IRUGO | S_IWUSR, show_fb_state, set_fb_state),
523 __ATTR(overlay, S_IRUGO | S_IWUSR, show_overlay, set_overlay),
524 __ATTR(fps, S_IRUGO | S_IWUSR, show_fps, set_fps),
525 __ATTR(map, S_IRUGO | S_IWUSR, show_fb_win_map, set_fb_win_map),
526 __ATTR(dsp_lut, S_IRUGO | S_IWUSR, show_dsp_lut, set_dsp_lut),
527 __ATTR(cabc, S_IRUGO | S_IWUSR, show_dsp_cabc, set_dsp_cabc),
528 __ATTR(bcsh, S_IRUGO | S_IWUSR, show_dsp_bcsh, set_dsp_bcsh),
529 __ATTR(scale, S_IRUGO | S_IWUSR, show_scale, set_scale),
532 int rkfb_create_sysfs(struct fb_info *fbi)
536 for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++) {
537 r = device_create_file(fbi->dev, &rkfb_attrs[t]);
539 dev_err(fbi->dev, "failed to create sysfs " "file\n");
547 void rkfb_remove_sysfs(struct rk_fb *rk_fb)
551 for (i = 0; i < rk_fb->num_fb; i++) {
552 for (t = 0; t < ARRAY_SIZE(rkfb_attrs); t++)
553 device_remove_file(rk_fb->fb[i]->dev, &rkfb_attrs[t]);