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authorDmitry Torokhov <dtor@insightbb.com>2006-10-11 01:44:46 -0400
committerDmitry Torokhov <dtor@insightbb.com>2006-10-11 01:44:46 -0400
commit86255d9d0bede79140f4912482447963f00818c0 (patch)
treea3d18df86ecd58f3e84168141084b848507a42a3 /drivers/input
parent817e6ba3623de9cdc66c6aba90eae30b5588ff11 (diff)
Input: atkbd - supress "too many keys" error message
Many users seems to be annoyed by this warning so kill the message and implement a counter exported as a sysfs attribute so we still know what is going on. Make atkbd use attribute groups while we are at it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/keyboard/atkbd.c54
1 files changed, 41 insertions, 13 deletions
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index b6ef9eaad1dc..cbb93669d1ce 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -221,6 +221,7 @@ struct atkbd {
221 unsigned long xl_bit; 221 unsigned long xl_bit;
222 unsigned int last; 222 unsigned int last;
223 unsigned long time; 223 unsigned long time;
224 unsigned long err_count;
224 225
225 struct work_struct event_work; 226 struct work_struct event_work;
226 struct mutex event_mutex; 227 struct mutex event_mutex;
@@ -234,11 +235,13 @@ static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t
234#define ATKBD_DEFINE_ATTR(_name) \ 235#define ATKBD_DEFINE_ATTR(_name) \
235static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ 236static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
236static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ 237static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
237static ssize_t atkbd_do_show_##_name(struct device *d, struct device_attribute *attr, char *b) \ 238static ssize_t atkbd_do_show_##_name(struct device *d, \
239 struct device_attribute *attr, char *b) \
238{ \ 240{ \
239 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ 241 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
240} \ 242} \
241static ssize_t atkbd_do_set_##_name(struct device *d, struct device_attribute *attr, const char *b, size_t s) \ 243static ssize_t atkbd_do_set_##_name(struct device *d, \
244 struct device_attribute *attr, const char *b, size_t s) \
242{ \ 245{ \
243 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ 246 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
244} \ 247} \
@@ -251,6 +254,32 @@ ATKBD_DEFINE_ATTR(set);
251ATKBD_DEFINE_ATTR(softrepeat); 254ATKBD_DEFINE_ATTR(softrepeat);
252ATKBD_DEFINE_ATTR(softraw); 255ATKBD_DEFINE_ATTR(softraw);
253 256
257#define ATKBD_DEFINE_RO_ATTR(_name) \
258static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
259static ssize_t atkbd_do_show_##_name(struct device *d, \
260 struct device_attribute *attr, char *b) \
261{ \
262 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
263} \
264static struct device_attribute atkbd_attr_##_name = \
265 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
266
267ATKBD_DEFINE_RO_ATTR(err_count);
268
269static struct attribute *atkbd_attributes[] = {
270 &atkbd_attr_extra.attr,
271 &atkbd_attr_scroll.attr,
272 &atkbd_attr_set.attr,
273 &atkbd_attr_softrepeat.attr,
274 &atkbd_attr_softraw.attr,
275 &atkbd_attr_err_count.attr,
276 NULL
277};
278
279static struct attribute_group atkbd_attribute_group = {
280 .attrs = atkbd_attributes,
281};
282
254static const unsigned int xl_table[] = { 283static const unsigned int xl_table[] = {
255 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, 284 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
256 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, 285 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
@@ -396,7 +425,10 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
396 add_release_event = 1; 425 add_release_event = 1;
397 break; 426 break;
398 case ATKBD_RET_ERR: 427 case ATKBD_RET_ERR:
428 atkbd->err_count++;
429#ifdef ATKBD_DEBUG
399 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); 430 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
431#endif
400 goto out; 432 goto out;
401 } 433 }
402 434
@@ -786,12 +818,7 @@ static void atkbd_disconnect(struct serio *serio)
786 synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ 818 synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */
787 flush_scheduled_work(); 819 flush_scheduled_work();
788 820
789 device_remove_file(&serio->dev, &atkbd_attr_extra); 821 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
790 device_remove_file(&serio->dev, &atkbd_attr_scroll);
791 device_remove_file(&serio->dev, &atkbd_attr_set);
792 device_remove_file(&serio->dev, &atkbd_attr_softrepeat);
793 device_remove_file(&serio->dev, &atkbd_attr_softraw);
794
795 input_unregister_device(atkbd->dev); 822 input_unregister_device(atkbd->dev);
796 serio_close(serio); 823 serio_close(serio);
797 serio_set_drvdata(serio, NULL); 824 serio_set_drvdata(serio, NULL);
@@ -961,11 +988,7 @@ static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
961 atkbd_set_keycode_table(atkbd); 988 atkbd_set_keycode_table(atkbd);
962 atkbd_set_device_attrs(atkbd); 989 atkbd_set_device_attrs(atkbd);
963 990
964 device_create_file(&serio->dev, &atkbd_attr_extra); 991 sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
965 device_create_file(&serio->dev, &atkbd_attr_scroll);
966 device_create_file(&serio->dev, &atkbd_attr_set);
967 device_create_file(&serio->dev, &atkbd_attr_softrepeat);
968 device_create_file(&serio->dev, &atkbd_attr_softraw);
969 992
970 atkbd_enable(atkbd); 993 atkbd_enable(atkbd);
971 994
@@ -1259,6 +1282,11 @@ static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t co
1259 return count; 1282 return count;
1260} 1283}
1261 1284
1285static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1286{
1287 return sprintf(buf, "%lu\n", atkbd->err_count);
1288}
1289
1262 1290
1263static int __init atkbd_init(void) 1291static int __init atkbd_init(void)
1264{ 1292{