X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Finput%2Finput.c;h=c13ced3e0d3dfe7d0db777776c1b51a2cf4f59e5;hb=b2bdd1f5041db6f2d172417b5ceea20abc7a6eb6;hp=c0837d3920570141d6111576cfea2703bbd535d2;hpb=22d1c398e852e7f0ace3482e662886386ef15725;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/input/input.c b/drivers/input/input.c index c0837d3..c13ced3 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -21,6 +21,7 @@ #include #include #include +#include MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("Input core"); @@ -235,9 +236,13 @@ static void input_handle_event(struct input_dev *dev, if (value >= 0) disposition = INPUT_PASS_TO_ALL; break; + + case EV_PWR: + disposition = INPUT_PASS_TO_ALL; + break; } - if (type != EV_SYN) + if (disposition != INPUT_IGNORE_EVENT && type != EV_SYN) dev->sync = 0; if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event) @@ -489,7 +494,7 @@ static void input_disconnect_device(struct input_dev *dev) if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) { for (code = 0; code <= KEY_MAX; code++) { if (is_event_supported(code, dev->keybit, KEY_MAX) && - test_bit(code, dev->key)) { + __test_and_clear_bit(code, dev->key)) { input_pass_event(dev, EV_KEY, code, 0); } } @@ -522,7 +527,7 @@ static int input_default_getkeycode(struct input_dev *dev, if (!dev->keycodesize) return -EINVAL; - if (scancode < 0 || scancode >= dev->keycodemax) + if (scancode >= dev->keycodemax) return -EINVAL; *keycode = input_fetch_keycode(dev, scancode); @@ -536,10 +541,7 @@ static int input_default_setkeycode(struct input_dev *dev, int old_keycode; int i; - if (scancode < 0 || scancode >= dev->keycodemax) - return -EINVAL; - - if (keycode < 0 || keycode > KEY_MAX) + if (scancode >= dev->keycodemax) return -EINVAL; if (!dev->keycodesize) @@ -582,6 +584,75 @@ static int input_default_setkeycode(struct input_dev *dev, return 0; } +/** + * input_get_keycode - retrieve keycode currently mapped to a given scancode + * @dev: input device which keymap is being queried + * @scancode: scancode (or its equivalent for device in question) for which + * keycode is needed + * @keycode: result + * + * This function should be called by anyone interested in retrieving current + * keymap. Presently keyboard and evdev handlers use it. + */ +int input_get_keycode(struct input_dev *dev, int scancode, int *keycode) +{ + if (scancode < 0) + return -EINVAL; + + return dev->getkeycode(dev, scancode, keycode); +} +EXPORT_SYMBOL(input_get_keycode); + +/** + * input_get_keycode - assign new keycode to a given scancode + * @dev: input device which keymap is being updated + * @scancode: scancode (or its equivalent for device in question) + * @keycode: new keycode to be assigned to the scancode + * + * This function should be called by anyone needing to update current + * keymap. Presently keyboard and evdev handlers use it. + */ +int input_set_keycode(struct input_dev *dev, int scancode, int keycode) +{ + unsigned long flags; + int old_keycode; + int retval; + + if (scancode < 0) + return -EINVAL; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + spin_lock_irqsave(&dev->event_lock, flags); + + retval = dev->getkeycode(dev, scancode, &old_keycode); + if (retval) + goto out; + + retval = dev->setkeycode(dev, scancode, keycode); + if (retval) + goto out; + + /* + * Simulate keyup event if keycode is not present + * in the keymap anymore + */ + if (test_bit(EV_KEY, dev->evbit) && + !is_event_supported(old_keycode, dev->keybit, KEY_MAX) && + __test_and_clear_bit(old_keycode, dev->key)) { + + input_pass_event(dev, EV_KEY, old_keycode, 0); + if (dev->sync) + input_pass_event(dev, EV_SYN, SYN_REPORT, 1); + } + + out: + spin_unlock_irqrestore(&dev->event_lock, flags); + + return retval; +} +EXPORT_SYMBOL(input_set_keycode); #define MATCH_BIT(bit, max) \ for (i = 0; i < BITS_TO_LONGS(max); i++) \ @@ -751,7 +822,7 @@ static int input_devices_seq_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations input_devices_seq_ops = { +static const struct seq_operations input_devices_seq_ops = { .start = input_devices_seq_start, .next = input_devices_seq_next, .stop = input_devices_seq_stop, @@ -804,7 +875,7 @@ static int input_handlers_seq_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations input_handlers_seq_ops = { +static const struct seq_operations input_handlers_seq_ops = { .start = input_handlers_seq_start, .next = input_handlers_seq_next, .stop = input_handlers_seq_stop, @@ -828,30 +899,26 @@ static int __init input_proc_init(void) { struct proc_dir_entry *entry; - proc_bus_input_dir = proc_mkdir("input", proc_bus); + proc_bus_input_dir = proc_mkdir("bus/input", NULL); if (!proc_bus_input_dir) return -ENOMEM; proc_bus_input_dir->owner = THIS_MODULE; - entry = create_proc_entry("devices", 0, proc_bus_input_dir); + entry = proc_create("devices", 0, proc_bus_input_dir, + &input_devices_fileops); if (!entry) goto fail1; - entry->owner = THIS_MODULE; - entry->proc_fops = &input_devices_fileops; - - entry = create_proc_entry("handlers", 0, proc_bus_input_dir); + entry = proc_create("handlers", 0, proc_bus_input_dir, + &input_handlers_fileops); if (!entry) goto fail2; - entry->owner = THIS_MODULE; - entry->proc_fops = &input_handlers_fileops; - return 0; fail2: remove_proc_entry("devices", proc_bus_input_dir); - fail1: remove_proc_entry("input", proc_bus); + fail1: remove_proc_entry("bus/input", NULL); return -ENOMEM; } @@ -859,7 +926,7 @@ static void input_proc_exit(void) { remove_proc_entry("devices", proc_bus_input_dir); remove_proc_entry("handlers", proc_bus_input_dir); - remove_proc_entry("input", proc_bus); + remove_proc_entry("bus/input", NULL); } #else /* !CONFIG_PROC_FS */ @@ -1325,9 +1392,6 @@ int input_register_device(struct input_dev *dev) snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id), "input%ld", (unsigned long) atomic_inc_return(&input_no) - 1); - if (dev->cdev.dev) - dev->dev.parent = dev->cdev.dev; - error = device_add(&dev->dev); if (error) return error; @@ -1525,13 +1589,17 @@ EXPORT_SYMBOL(input_unregister_handle); static int input_open_file(struct inode *inode, struct file *file) { - struct input_handler *handler = input_table[iminor(inode) >> 5]; + struct input_handler *handler; const struct file_operations *old_fops, *new_fops = NULL; int err; + lock_kernel(); /* No load-on-demand here? */ - if (!handler || !(new_fops = fops_get(handler->fops))) - return -ENODEV; + handler = input_table[iminor(inode) >> 5]; + if (!handler || !(new_fops = fops_get(handler->fops))) { + err = -ENODEV; + goto out; + } /* * That's _really_ odd. Usually NULL ->open means "nothing special", @@ -1539,7 +1607,8 @@ static int input_open_file(struct inode *inode, struct file *file) */ if (!new_fops->open) { fops_put(new_fops); - return -ENODEV; + err = -ENODEV; + goto out; } old_fops = file->f_op; file->f_op = new_fops; @@ -1551,6 +1620,8 @@ static int input_open_file(struct inode *inode, struct file *file) file->f_op = fops_get(old_fops); } fops_put(old_fops); +out: + unlock_kernel(); return err; }