2 * Copyright (C) 2009 Nokia Corporation
3 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
5 * Some code and ideas taken from drivers/video/omap/ driver
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published by
10 * the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program. If not, see <http://www.gnu.org/licenses/>.
21 #define DSS_SUBSYS_NAME "MANAGER"
23 #include <linux/kernel.h>
24 #include <linux/slab.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/jiffies.h>
29 #include <video/omapdss.h>
32 #include "dss_features.h"
34 static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
36 return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
39 static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
41 struct omap_dss_device *dssdev = mgr->get_device(mgr);
43 return snprintf(buf, PAGE_SIZE, "%s\n", dssdev ?
44 dssdev->name : "<none>");
47 static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
48 const char *buf, size_t size)
52 struct omap_dss_device *dssdev = NULL;
54 int match(struct omap_dss_device *dssdev, void *data)
56 const char *str = data;
57 return sysfs_streq(dssdev->name, str);
60 if (buf[size-1] == '\n')
64 dssdev = omap_dss_find_device((void *)buf, match);
66 if (len > 0 && dssdev == NULL)
70 DSSDBG("display %s found\n", dssdev->name);
73 r = mgr->unset_output(mgr);
75 DSSERR("failed to unset current output\n");
81 struct omap_dss_output *out = dssdev->output;
84 * a registered device should have an output connected to it
88 DSSERR("device has no output connected to it\n");
92 r = mgr->set_output(mgr, out);
94 DSSERR("failed to set manager output\n");
100 DSSERR("failed to apply dispc config\n");
107 omap_dss_put_device(dssdev);
112 static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
115 struct omap_overlay_manager_info info;
117 mgr->get_manager_info(mgr, &info);
119 return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
122 static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
123 const char *buf, size_t size)
125 struct omap_overlay_manager_info info;
129 r = kstrtouint(buf, 0, &color);
133 mgr->get_manager_info(mgr, &info);
135 info.default_color = color;
137 r = mgr->set_manager_info(mgr, &info);
148 static const char *trans_key_type_str[] = {
153 static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
156 enum omap_dss_trans_key_type key_type;
157 struct omap_overlay_manager_info info;
159 mgr->get_manager_info(mgr, &info);
161 key_type = info.trans_key_type;
162 BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
164 return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
167 static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
168 const char *buf, size_t size)
170 enum omap_dss_trans_key_type key_type;
171 struct omap_overlay_manager_info info;
174 for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
175 key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
176 if (sysfs_streq(buf, trans_key_type_str[key_type]))
180 if (key_type == ARRAY_SIZE(trans_key_type_str))
183 mgr->get_manager_info(mgr, &info);
185 info.trans_key_type = key_type;
187 r = mgr->set_manager_info(mgr, &info);
198 static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
201 struct omap_overlay_manager_info info;
203 mgr->get_manager_info(mgr, &info);
205 return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
208 static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
209 const char *buf, size_t size)
211 struct omap_overlay_manager_info info;
215 r = kstrtouint(buf, 0, &key_value);
219 mgr->get_manager_info(mgr, &info);
221 info.trans_key = key_value;
223 r = mgr->set_manager_info(mgr, &info);
234 static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
237 struct omap_overlay_manager_info info;
239 mgr->get_manager_info(mgr, &info);
241 return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
244 static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
245 const char *buf, size_t size)
247 struct omap_overlay_manager_info info;
251 r = strtobool(buf, &enable);
255 mgr->get_manager_info(mgr, &info);
257 info.trans_enabled = enable;
259 r = mgr->set_manager_info(mgr, &info);
270 static ssize_t manager_alpha_blending_enabled_show(
271 struct omap_overlay_manager *mgr, char *buf)
273 struct omap_overlay_manager_info info;
275 mgr->get_manager_info(mgr, &info);
277 WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
279 return snprintf(buf, PAGE_SIZE, "%d\n",
280 info.partial_alpha_enabled);
283 static ssize_t manager_alpha_blending_enabled_store(
284 struct omap_overlay_manager *mgr,
285 const char *buf, size_t size)
287 struct omap_overlay_manager_info info;
291 WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
293 r = strtobool(buf, &enable);
297 mgr->get_manager_info(mgr, &info);
299 info.partial_alpha_enabled = enable;
301 r = mgr->set_manager_info(mgr, &info);
312 static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
315 struct omap_overlay_manager_info info;
317 mgr->get_manager_info(mgr, &info);
319 return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
322 static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
323 const char *buf, size_t size)
325 struct omap_overlay_manager_info info;
329 if (!dss_has_feature(FEAT_CPR))
332 r = strtobool(buf, &enable);
336 mgr->get_manager_info(mgr, &info);
338 if (info.cpr_enable == enable)
341 info.cpr_enable = enable;
343 r = mgr->set_manager_info(mgr, &info);
354 static ssize_t manager_cpr_coef_show(struct omap_overlay_manager *mgr,
357 struct omap_overlay_manager_info info;
359 mgr->get_manager_info(mgr, &info);
361 return snprintf(buf, PAGE_SIZE,
362 "%d %d %d %d %d %d %d %d %d\n",
374 static ssize_t manager_cpr_coef_store(struct omap_overlay_manager *mgr,
375 const char *buf, size_t size)
377 struct omap_overlay_manager_info info;
378 struct omap_dss_cpr_coefs coefs;
382 if (!dss_has_feature(FEAT_CPR))
385 if (sscanf(buf, "%hd %hd %hd %hd %hd %hd %hd %hd %hd",
386 &coefs.rr, &coefs.rg, &coefs.rb,
387 &coefs.gr, &coefs.gg, &coefs.gb,
388 &coefs.br, &coefs.bg, &coefs.bb) != 9)
391 arr = (s16[]){ coefs.rr, coefs.rg, coefs.rb,
392 coefs.gr, coefs.gg, coefs.gb,
393 coefs.br, coefs.bg, coefs.bb };
395 for (i = 0; i < 9; ++i) {
396 if (arr[i] < -512 || arr[i] > 511)
400 mgr->get_manager_info(mgr, &info);
402 info.cpr_coefs = coefs;
404 r = mgr->set_manager_info(mgr, &info);
415 struct manager_attribute {
416 struct attribute attr;
417 ssize_t (*show)(struct omap_overlay_manager *, char *);
418 ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
421 #define MANAGER_ATTR(_name, _mode, _show, _store) \
422 struct manager_attribute manager_attr_##_name = \
423 __ATTR(_name, _mode, _show, _store)
425 static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
426 static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
427 manager_display_show, manager_display_store);
428 static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
429 manager_default_color_show, manager_default_color_store);
430 static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
431 manager_trans_key_type_show, manager_trans_key_type_store);
432 static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
433 manager_trans_key_value_show, manager_trans_key_value_store);
434 static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
435 manager_trans_key_enabled_show,
436 manager_trans_key_enabled_store);
437 static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
438 manager_alpha_blending_enabled_show,
439 manager_alpha_blending_enabled_store);
440 static MANAGER_ATTR(cpr_enable, S_IRUGO|S_IWUSR,
441 manager_cpr_enable_show,
442 manager_cpr_enable_store);
443 static MANAGER_ATTR(cpr_coef, S_IRUGO|S_IWUSR,
444 manager_cpr_coef_show,
445 manager_cpr_coef_store);
448 static struct attribute *manager_sysfs_attrs[] = {
449 &manager_attr_name.attr,
450 &manager_attr_display.attr,
451 &manager_attr_default_color.attr,
452 &manager_attr_trans_key_type.attr,
453 &manager_attr_trans_key_value.attr,
454 &manager_attr_trans_key_enabled.attr,
455 &manager_attr_alpha_blending_enabled.attr,
456 &manager_attr_cpr_enable.attr,
457 &manager_attr_cpr_coef.attr,
461 static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
464 struct omap_overlay_manager *manager;
465 struct manager_attribute *manager_attr;
467 manager = container_of(kobj, struct omap_overlay_manager, kobj);
468 manager_attr = container_of(attr, struct manager_attribute, attr);
470 if (!manager_attr->show)
473 return manager_attr->show(manager, buf);
476 static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
477 const char *buf, size_t size)
479 struct omap_overlay_manager *manager;
480 struct manager_attribute *manager_attr;
482 manager = container_of(kobj, struct omap_overlay_manager, kobj);
483 manager_attr = container_of(attr, struct manager_attribute, attr);
485 if (!manager_attr->store)
488 return manager_attr->store(manager, buf, size);
491 static const struct sysfs_ops manager_sysfs_ops = {
492 .show = manager_attr_show,
493 .store = manager_attr_store,
496 static struct kobj_type manager_ktype = {
497 .sysfs_ops = &manager_sysfs_ops,
498 .default_attrs = manager_sysfs_attrs,
501 int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
502 struct platform_device *pdev)
504 return kobject_init_and_add(&mgr->kobj, &manager_ktype,
505 &pdev->dev.kobj, "manager%d", mgr->id);
508 void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr)
510 kobject_del(&mgr->kobj);
511 kobject_put(&mgr->kobj);