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10#define DSS_SUBSYS_NAME "MANAGER"
11
12#include <linux/kernel.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/platform_device.h>
16#include <linux/jiffies.h>
17
18#include <video/omapfb_dss.h>
19
20#include "dss.h"
21#include "dss_features.h"
22
23static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
24{
25 return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
26}
27
28static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
29{
30 struct omap_dss_device *dssdev = mgr->get_device(mgr);
31
32 return snprintf(buf, PAGE_SIZE, "%s\n", dssdev ?
33 dssdev->name : "<none>");
34}
35
36static int manager_display_match(struct omap_dss_device *dssdev, void *data)
37{
38 const char *str = data;
39
40 return sysfs_streq(dssdev->name, str);
41}
42
43static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
44 const char *buf, size_t size)
45{
46 int r = 0;
47 size_t len = size;
48 struct omap_dss_device *dssdev = NULL;
49 struct omap_dss_device *old_dssdev;
50
51 if (buf[size-1] == '\n')
52 --len;
53
54 if (len > 0)
55 dssdev = omap_dss_find_device((void *)buf,
56 manager_display_match);
57
58 if (len > 0 && dssdev == NULL)
59 return -EINVAL;
60
61 if (dssdev) {
62 DSSDBG("display %s found\n", dssdev->name);
63
64 if (omapdss_device_is_connected(dssdev)) {
65 DSSERR("new display is already connected\n");
66 r = -EINVAL;
67 goto put_device;
68 }
69
70 if (omapdss_device_is_enabled(dssdev)) {
71 DSSERR("new display is not disabled\n");
72 r = -EINVAL;
73 goto put_device;
74 }
75 }
76
77 old_dssdev = mgr->get_device(mgr);
78 if (old_dssdev) {
79 if (omapdss_device_is_enabled(old_dssdev)) {
80 DSSERR("old display is not disabled\n");
81 r = -EINVAL;
82 goto put_device;
83 }
84
85 old_dssdev->driver->disconnect(old_dssdev);
86 }
87
88 if (dssdev) {
89 r = dssdev->driver->connect(dssdev);
90 if (r) {
91 DSSERR("failed to connect new device\n");
92 goto put_device;
93 }
94
95 old_dssdev = mgr->get_device(mgr);
96 if (old_dssdev != dssdev) {
97 DSSERR("failed to connect device to this manager\n");
98 dssdev->driver->disconnect(dssdev);
99 goto put_device;
100 }
101
102 r = mgr->apply(mgr);
103 if (r) {
104 DSSERR("failed to apply dispc config\n");
105 goto put_device;
106 }
107 }
108
109put_device:
110 if (dssdev)
111 omap_dss_put_device(dssdev);
112
113 return r ? r : size;
114}
115
116static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
117 char *buf)
118{
119 struct omap_overlay_manager_info info;
120
121 mgr->get_manager_info(mgr, &info);
122
123 return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
124}
125
126static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
127 const char *buf, size_t size)
128{
129 struct omap_overlay_manager_info info;
130 u32 color;
131 int r;
132
133 r = kstrtouint(buf, 0, &color);
134 if (r)
135 return r;
136
137 mgr->get_manager_info(mgr, &info);
138
139 info.default_color = color;
140
141 r = mgr->set_manager_info(mgr, &info);
142 if (r)
143 return r;
144
145 r = mgr->apply(mgr);
146 if (r)
147 return r;
148
149 return size;
150}
151
152static const char *trans_key_type_str[] = {
153 "gfx-destination",
154 "video-source",
155};
156
157static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
158 char *buf)
159{
160 enum omap_dss_trans_key_type key_type;
161 struct omap_overlay_manager_info info;
162
163 mgr->get_manager_info(mgr, &info);
164
165 key_type = info.trans_key_type;
166 BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
167
168 return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
169}
170
171static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
172 const char *buf, size_t size)
173{
174 struct omap_overlay_manager_info info;
175 int r;
176
177 r = sysfs_match_string(trans_key_type_str, buf);
178 if (r < 0)
179 return r;
180
181 mgr->get_manager_info(mgr, &info);
182
183 info.trans_key_type = r;
184
185 r = mgr->set_manager_info(mgr, &info);
186 if (r)
187 return r;
188
189 r = mgr->apply(mgr);
190 if (r)
191 return r;
192
193 return size;
194}
195
196static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
197 char *buf)
198{
199 struct omap_overlay_manager_info info;
200
201 mgr->get_manager_info(mgr, &info);
202
203 return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
204}
205
206static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
207 const char *buf, size_t size)
208{
209 struct omap_overlay_manager_info info;
210 u32 key_value;
211 int r;
212
213 r = kstrtouint(buf, 0, &key_value);
214 if (r)
215 return r;
216
217 mgr->get_manager_info(mgr, &info);
218
219 info.trans_key = key_value;
220
221 r = mgr->set_manager_info(mgr, &info);
222 if (r)
223 return r;
224
225 r = mgr->apply(mgr);
226 if (r)
227 return r;
228
229 return size;
230}
231
232static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
233 char *buf)
234{
235 struct omap_overlay_manager_info info;
236
237 mgr->get_manager_info(mgr, &info);
238
239 return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
240}
241
242static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
243 const char *buf, size_t size)
244{
245 struct omap_overlay_manager_info info;
246 bool enable;
247 int r;
248
249 r = strtobool(buf, &enable);
250 if (r)
251 return r;
252
253 mgr->get_manager_info(mgr, &info);
254
255 info.trans_enabled = enable;
256
257 r = mgr->set_manager_info(mgr, &info);
258 if (r)
259 return r;
260
261 r = mgr->apply(mgr);
262 if (r)
263 return r;
264
265 return size;
266}
267
268static ssize_t manager_alpha_blending_enabled_show(
269 struct omap_overlay_manager *mgr, char *buf)
270{
271 struct omap_overlay_manager_info info;
272
273 if(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
274 return -ENODEV;
275
276 mgr->get_manager_info(mgr, &info);
277
278 return snprintf(buf, PAGE_SIZE, "%d\n",
279 info.partial_alpha_enabled);
280}
281
282static ssize_t manager_alpha_blending_enabled_store(
283 struct omap_overlay_manager *mgr,
284 const char *buf, size_t size)
285{
286 struct omap_overlay_manager_info info;
287 bool enable;
288 int r;
289
290 if(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
291 return -ENODEV;
292
293 r = strtobool(buf, &enable);
294 if (r)
295 return r;
296
297 mgr->get_manager_info(mgr, &info);
298
299 info.partial_alpha_enabled = enable;
300
301 r = mgr->set_manager_info(mgr, &info);
302 if (r)
303 return r;
304
305 r = mgr->apply(mgr);
306 if (r)
307 return r;
308
309 return size;
310}
311
312static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
313 char *buf)
314{
315 struct omap_overlay_manager_info info;
316
317 mgr->get_manager_info(mgr, &info);
318
319 return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
320}
321
322static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
323 const char *buf, size_t size)
324{
325 struct omap_overlay_manager_info info;
326 int r;
327 bool enable;
328
329 if (!dss_has_feature(FEAT_CPR))
330 return -ENODEV;
331
332 r = strtobool(buf, &enable);
333 if (r)
334 return r;
335
336 mgr->get_manager_info(mgr, &info);
337
338 if (info.cpr_enable == enable)
339 return size;
340
341 info.cpr_enable = enable;
342
343 r = mgr->set_manager_info(mgr, &info);
344 if (r)
345 return r;
346
347 r = mgr->apply(mgr);
348 if (r)
349 return r;
350
351 return size;
352}
353
354static ssize_t manager_cpr_coef_show(struct omap_overlay_manager *mgr,
355 char *buf)
356{
357 struct omap_overlay_manager_info info;
358
359 mgr->get_manager_info(mgr, &info);
360
361 return snprintf(buf, PAGE_SIZE,
362 "%d %d %d %d %d %d %d %d %d\n",
363 info.cpr_coefs.rr,
364 info.cpr_coefs.rg,
365 info.cpr_coefs.rb,
366 info.cpr_coefs.gr,
367 info.cpr_coefs.gg,
368 info.cpr_coefs.gb,
369 info.cpr_coefs.br,
370 info.cpr_coefs.bg,
371 info.cpr_coefs.bb);
372}
373
374static ssize_t manager_cpr_coef_store(struct omap_overlay_manager *mgr,
375 const char *buf, size_t size)
376{
377 struct omap_overlay_manager_info info;
378 struct omap_dss_cpr_coefs coefs;
379 int r, i;
380 s16 *arr;
381
382 if (!dss_has_feature(FEAT_CPR))
383 return -ENODEV;
384
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)
389 return -EINVAL;
390
391 arr = (s16[]){ coefs.rr, coefs.rg, coefs.rb,
392 coefs.gr, coefs.gg, coefs.gb,
393 coefs.br, coefs.bg, coefs.bb };
394
395 for (i = 0; i < 9; ++i) {
396 if (arr[i] < -512 || arr[i] > 511)
397 return -EINVAL;
398 }
399
400 mgr->get_manager_info(mgr, &info);
401
402 info.cpr_coefs = coefs;
403
404 r = mgr->set_manager_info(mgr, &info);
405 if (r)
406 return r;
407
408 r = mgr->apply(mgr);
409 if (r)
410 return r;
411
412 return size;
413}
414
415struct 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);
419};
420
421#define MANAGER_ATTR(_name, _mode, _show, _store) \
422 struct manager_attribute manager_attr_##_name = \
423 __ATTR(_name, _mode, _show, _store)
424
425static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
426static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
427 manager_display_show, manager_display_store);
428static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
429 manager_default_color_show, manager_default_color_store);
430static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
431 manager_trans_key_type_show, manager_trans_key_type_store);
432static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
433 manager_trans_key_value_show, manager_trans_key_value_store);
434static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
435 manager_trans_key_enabled_show,
436 manager_trans_key_enabled_store);
437static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
438 manager_alpha_blending_enabled_show,
439 manager_alpha_blending_enabled_store);
440static MANAGER_ATTR(cpr_enable, S_IRUGO|S_IWUSR,
441 manager_cpr_enable_show,
442 manager_cpr_enable_store);
443static MANAGER_ATTR(cpr_coef, S_IRUGO|S_IWUSR,
444 manager_cpr_coef_show,
445 manager_cpr_coef_store);
446
447
448static 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,
458 NULL
459};
460
461static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
462 char *buf)
463{
464 struct omap_overlay_manager *manager;
465 struct manager_attribute *manager_attr;
466
467 manager = container_of(kobj, struct omap_overlay_manager, kobj);
468 manager_attr = container_of(attr, struct manager_attribute, attr);
469
470 if (!manager_attr->show)
471 return -ENOENT;
472
473 return manager_attr->show(manager, buf);
474}
475
476static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
477 const char *buf, size_t size)
478{
479 struct omap_overlay_manager *manager;
480 struct manager_attribute *manager_attr;
481
482 manager = container_of(kobj, struct omap_overlay_manager, kobj);
483 manager_attr = container_of(attr, struct manager_attribute, attr);
484
485 if (!manager_attr->store)
486 return -ENOENT;
487
488 return manager_attr->store(manager, buf, size);
489}
490
491static const struct sysfs_ops manager_sysfs_ops = {
492 .show = manager_attr_show,
493 .store = manager_attr_store,
494};
495
496static struct kobj_type manager_ktype = {
497 .sysfs_ops = &manager_sysfs_ops,
498 .default_attrs = manager_sysfs_attrs,
499};
500
501int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
502 struct platform_device *pdev)
503{
504 return kobject_init_and_add(&mgr->kobj, &manager_ktype,
505 &pdev->dev.kobj, "manager%d", mgr->id);
506}
507
508void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr)
509{
510 kobject_del(&mgr->kobj);
511 kobject_put(&mgr->kobj);
512
513 memset(&mgr->kobj, 0, sizeof(mgr->kobj));
514}
515
