diff options
Diffstat (limited to 'drivers/media/rc/ir-keytable.c')
| -rw-r--r-- | drivers/media/rc/ir-keytable.c | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/drivers/media/rc/ir-keytable.c b/drivers/media/rc/ir-keytable.c new file mode 100644 index 000000000000..8039110350d3 --- /dev/null +++ b/drivers/media/rc/ir-keytable.c @@ -0,0 +1,766 @@ +/* ir-keytable.c - handle IR scancode->keycode tables + * + * Copyright (C) 2009 by Mauro Carvalho Chehab <mchehab@redhat.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + + +#include <linux/input.h> +#include <linux/slab.h> +#include "ir-core-priv.h" + +/* Sizes are in bytes, 256 bytes allows for 32 entries on x64 */ +#define IR_TAB_MIN_SIZE 256 +#define IR_TAB_MAX_SIZE 8192 + +/* FIXME: IR_KEYPRESS_TIMEOUT should be protocol specific */ +#define IR_KEYPRESS_TIMEOUT 250 + +/** + * ir_create_table() - initializes a scancode table + * @rc_tab: the ir_scancode_table to initialize + * @name: name to assign to the table + * @ir_type: ir type to assign to the new table + * @size: initial size of the table + * @return: zero on success or a negative error code + * + * This routine will initialize the ir_scancode_table and will allocate + * memory to hold at least the specified number elements. + */ +static int ir_create_table(struct ir_scancode_table *rc_tab, + const char *name, u64 ir_type, size_t size) +{ + rc_tab->name = name; + rc_tab->ir_type = ir_type; + rc_tab->alloc = roundup_pow_of_two(size * sizeof(struct ir_scancode)); + rc_tab->size = rc_tab->alloc / sizeof(struct ir_scancode); + rc_tab->scan = kmalloc(rc_tab->alloc, GFP_KERNEL); + if (!rc_tab->scan) + return -ENOMEM; + + IR_dprintk(1, "Allocated space for %u keycode entries (%u bytes)\n", + rc_tab->size, rc_tab->alloc); + return 0; +} + +/** + * ir_free_table() - frees memory allocated by a scancode table + * @rc_tab: the table whose mappings need to be freed + * + * This routine will free memory alloctaed for key mappings used by given + * scancode table. + */ +static void ir_free_table(struct ir_scancode_table *rc_tab) +{ + rc_tab->size = 0; + kfree(rc_tab->scan); + rc_tab->scan = NULL; +} + +/** + * ir_resize_table() - resizes a scancode table if necessary + * @rc_tab: the ir_scancode_table to resize + * @gfp_flags: gfp flags to use when allocating memory + * @return: zero on success or a negative error code + * + * This routine will shrink the ir_scancode_table if it has lots of + * unused entries and grow it if it is full. + */ +static int ir_resize_table(struct ir_scancode_table *rc_tab, gfp_t gfp_flags) +{ + unsigned int oldalloc = rc_tab->alloc; + unsigned int newalloc = oldalloc; + struct ir_scancode *oldscan = rc_tab->scan; + struct ir_scancode *newscan; + + if (rc_tab->size == rc_tab->len) { + /* All entries in use -> grow keytable */ + if (rc_tab->alloc >= IR_TAB_MAX_SIZE) + return -ENOMEM; + + newalloc *= 2; + IR_dprintk(1, "Growing table to %u bytes\n", newalloc); + } + + if ((rc_tab->len * 3 < rc_tab->size) && (oldalloc > IR_TAB_MIN_SIZE)) { + /* Less than 1/3 of entries in use -> shrink keytable */ + newalloc /= 2; + IR_dprintk(1, "Shrinking table to %u bytes\n", newalloc); + } + + if (newalloc == oldalloc) + return 0; + + newscan = kmalloc(newalloc, gfp_flags); + if (!newscan) { + IR_dprintk(1, "Failed to kmalloc %u bytes\n", newalloc); + return -ENOMEM; + } + + memcpy(newscan, rc_tab->scan, rc_tab->len * sizeof(struct ir_scancode)); + rc_tab->scan = newscan; + rc_tab->alloc = newalloc; + rc_tab->size = rc_tab->alloc / sizeof(struct ir_scancode); + kfree(oldscan); + return 0; +} + +/** + * ir_update_mapping() - set a keycode in the scancode->keycode table + * @dev: the struct input_dev device descriptor + * @rc_tab: scancode table to be adjusted + * @index: index of the mapping that needs to be updated + * @keycode: the desired keycode + * @return: previous keycode assigned to the mapping + * + * This routine is used to update scancode->keycopde mapping at given + * position. + */ +static unsigned int ir_update_mapping(struct input_dev *dev, + struct ir_scancode_table *rc_tab, + unsigned int index, + unsigned int new_keycode) +{ + int old_keycode = rc_tab->scan[index].keycode; + int i; + + /* Did the user wish to remove the mapping? */ + if (new_keycode == KEY_RESERVED || new_keycode == KEY_UNKNOWN) { + IR_dprintk(1, "#%d: Deleting scan 0x%04x\n", + index, rc_tab->scan[index].scancode); + rc_tab->len--; + memmove(&rc_tab->scan[index], &rc_tab->scan[index+ 1], + (rc_tab->len - index) * sizeof(struct ir_scancode)); + } else { + IR_dprintk(1, "#%d: %s scan 0x%04x with key 0x%04x\n", + index, + old_keycode == KEY_RESERVED ? "New" : "Replacing", + rc_tab->scan[index].scancode, new_keycode); + rc_tab->scan[index].keycode = new_keycode; + __set_bit(new_keycode, dev->keybit); + } + + if (old_keycode != KEY_RESERVED) { + /* A previous mapping was updated... */ + __clear_bit(old_keycode, dev->keybit); + /* ... but another scancode might use the same keycode */ + for (i = 0; i < rc_tab->len; i++) { + if (rc_tab->scan[i].keycode == old_keycode) { + __set_bit(old_keycode, dev->keybit); + break; + } + } + + /* Possibly shrink the keytable, failure is not a problem */ + ir_resize_table(rc_tab, GFP_ATOMIC); + } + + return old_keycode; +} + +/** + * ir_locate_scancode() - set a keycode in the scancode->keycode table + * @ir_dev: the struct ir_input_dev device descriptor + * @rc_tab: scancode table to be searched + * @scancode: the desired scancode + * @resize: controls whether we allowed to resize the table to + * accomodate not yet present scancodes + * @return: index of the mapping containing scancode in question + * or -1U in case of failure. + * + * This routine is used to locate given scancode in ir_scancode_table. + * If scancode is not yet present the routine will allocate a new slot + * for it. + */ +static unsigned int ir_establish_scancode(struct ir_input_dev *ir_dev, + struct ir_scancode_table *rc_tab, + unsigned int scancode, + bool resize) +{ + unsigned int i; + + /* + * Unfortunately, some hardware-based IR decoders don't provide + * all bits for the complete IR code. In general, they provide only + * the command part of the IR code. Yet, as it is possible to replace + * the provided IR with another one, it is needed to allow loading + * IR tables from other remotes. So, + */ + if (ir_dev->props && ir_dev->props->scanmask) + scancode &= ir_dev->props->scanmask; + + /* First check if we already have a mapping for this ir command */ + for (i = 0; i < rc_tab->len; i++) { + if (rc_tab->scan[i].scancode == scancode) + return i; + + /* Keytable is sorted from lowest to highest scancode */ + if (rc_tab->scan[i].scancode >= scancode) + break; + } + + /* No previous mapping found, we might need to grow the table */ + if (rc_tab->size == rc_tab->len) { + if (!resize || ir_resize_table(rc_tab, GFP_ATOMIC)) + return -1U; + } + + /* i is the proper index to insert our new keycode */ + if (i < rc_tab->len) + memmove(&rc_tab->scan[i + 1], &rc_tab->scan[i], + (rc_tab->len - i) * sizeof(struct ir_scancode)); + rc_tab->scan[i].scancode = scancode; + rc_tab->scan[i].keycode = KEY_RESERVED; + rc_tab->len++; + + return i; +} + +/** + * ir_setkeycode() - set a keycode in the scancode->keycode table + * @dev: the struct input_dev device descriptor + * @scancode: the desired scancode + * @keycode: result + * @return: -EINVAL if the keycode could not be inserted, otherwise zero. + * + * This routine is used to handle evdev EVIOCSKEY ioctl. + */ +static int ir_setkeycode(struct input_dev *dev, + const struct input_keymap_entry *ke, + unsigned int *old_keycode) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(dev); + struct ir_scancode_table *rc_tab = &ir_dev->rc_tab; + unsigned int index; + unsigned int scancode; + int retval; + unsigned long flags; + + spin_lock_irqsave(&rc_tab->lock, flags); + + if (ke->flags & INPUT_KEYMAP_BY_INDEX) { + index = ke->index; + if (index >= rc_tab->len) { + retval = -EINVAL; + goto out; + } + } else { + retval = input_scancode_to_scalar(ke, &scancode); + if (retval) + goto out; + + index = ir_establish_scancode(ir_dev, rc_tab, scancode, true); + if (index >= rc_tab->len) { + retval = -ENOMEM; + goto out; + } + } + + *old_keycode = ir_update_mapping(dev, rc_tab, index, ke->keycode); + +out: + spin_unlock_irqrestore(&rc_tab->lock, flags); + return retval; +} + +/** + * ir_setkeytable() - sets several entries in the scancode->keycode table + * @dev: the struct input_dev device descriptor + * @to: the struct ir_scancode_table to copy entries to + * @from: the struct ir_scancode_table to copy entries from + * @return: -ENOMEM if all keycodes could not be inserted, otherwise zero. + * + * This routine is used to handle table initialization. + */ +static int ir_setkeytable(struct ir_input_dev *ir_dev, + const struct ir_scancode_table *from) +{ + struct ir_scancode_table *rc_tab = &ir_dev->rc_tab; + unsigned int i, index; + int rc; + + rc = ir_create_table(&ir_dev->rc_tab, + from->name, from->ir_type, from->size); + if (rc) + return rc; + + IR_dprintk(1, "Allocated space for %u keycode entries (%u bytes)\n", + rc_tab->size, rc_tab->alloc); + + for (i = 0; i < from->size; i++) { + index = ir_establish_scancode(ir_dev, rc_tab, + from->scan[i].scancode, false); + if (index >= rc_tab->len) { + rc = -ENOMEM; + break; + } + + ir_update_mapping(ir_dev->input_dev, rc_tab, index, + from->scan[i].keycode); + } + + if (rc) + ir_free_table(rc_tab); + + return rc; +} + +/** + * ir_lookup_by_scancode() - locate mapping by scancode + * @rc_tab: the &struct ir_scancode_table to search + * @scancode: scancode to look for in the table + * @return: index in the table, -1U if not found + * + * This routine performs binary search in RC keykeymap table for + * given scancode. + */ +static unsigned int ir_lookup_by_scancode(const struct ir_scancode_table *rc_tab, + unsigned int scancode) +{ + int start = 0; + int end = rc_tab->len - 1; + int mid; + + while (start <= end) { + mid = (start + end) / 2; + if (rc_tab->scan[mid].scancode < scancode) + start = mid + 1; + else if (rc_tab->scan[mid].scancode > scancode) + end = mid - 1; + else + return mid; + } + + return -1U; +} + +/** + * ir_getkeycode() - get a keycode from the scancode->keycode table + * @dev: the struct input_dev device descriptor + * @scancode: the desired scancode + * @keycode: used to return the keycode, if found, or KEY_RESERVED + * @return: always returns zero. + * + * This routine is used to handle evdev EVIOCGKEY ioctl. + */ +static int ir_getkeycode(struct input_dev *dev, + struct input_keymap_entry *ke) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(dev); + struct ir_scancode_table *rc_tab = &ir_dev->rc_tab; + struct ir_scancode *entry; + unsigned long flags; + unsigned int index; + unsigned int scancode; + int retval; + + spin_lock_irqsave(&rc_tab->lock, flags); + + if (ke->flags & INPUT_KEYMAP_BY_INDEX) { + index = ke->index; + } else { + retval = input_scancode_to_scalar(ke, &scancode); + if (retval) + goto out; + + index = ir_lookup_by_scancode(rc_tab, scancode); + } + + if (index >= rc_tab->len) { + if (!(ke->flags & INPUT_KEYMAP_BY_INDEX)) + IR_dprintk(1, "unknown key for scancode 0x%04x\n", + scancode); + retval = -EINVAL; + goto out; + } + + entry = &rc_tab->scan[index]; + + ke->index = index; + ke->keycode = entry->keycode; + ke->len = sizeof(entry->scancode); + memcpy(ke->scancode, &entry->scancode, sizeof(entry->scancode)); + + retval = 0; + +out: + spin_unlock_irqrestore(&rc_tab->lock, flags); + return retval; +} + +/** + * ir_g_keycode_from_table() - gets the keycode that corresponds to a scancode + * @input_dev: the struct input_dev descriptor of the device + * @scancode: the scancode that we're seeking + * + * This routine is used by the input routines when a key is pressed at the + * IR. The scancode is received and needs to be converted into a keycode. + * If the key is not found, it returns KEY_RESERVED. Otherwise, returns the + * corresponding keycode from the table. + */ +u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(dev); + struct ir_scancode_table *rc_tab = &ir_dev->rc_tab; + unsigned int keycode; + unsigned int index; + unsigned long flags; + + spin_lock_irqsave(&rc_tab->lock, flags); + + index = ir_lookup_by_scancode(rc_tab, scancode); + keycode = index < rc_tab->len ? + rc_tab->scan[index].keycode : KEY_RESERVED; + + spin_unlock_irqrestore(&rc_tab->lock, flags); + + if (keycode != KEY_RESERVED) + IR_dprintk(1, "%s: scancode 0x%04x keycode 0x%02x\n", + dev->name, scancode, keycode); + + return keycode; +} +EXPORT_SYMBOL_GPL(ir_g_keycode_from_table); + +/** + * ir_do_keyup() - internal function to signal the release of a keypress + * @ir: the struct ir_input_dev descriptor of the device + * + * This function is used internally to release a keypress, it must be + * called with keylock held. + */ +static void ir_do_keyup(struct ir_input_dev *ir) +{ + if (!ir->keypressed) + return; + + IR_dprintk(1, "keyup key 0x%04x\n", ir->last_keycode); + input_report_key(ir->input_dev, ir->last_keycode, 0); + input_sync(ir->input_dev); + ir->keypressed = false; +} + +/** + * ir_keyup() - generates input event to signal the release of a keypress + * @dev: the struct input_dev descriptor of the device + * + * This routine is used to signal that a key has been released on the + * remote control. + */ +void ir_keyup(struct input_dev *dev) +{ + unsigned long flags; + struct ir_input_dev *ir = input_get_drvdata(dev); + + spin_lock_irqsave(&ir->keylock, flags); + ir_do_keyup(ir); + spin_unlock_irqrestore(&ir->keylock, flags); +} +EXPORT_SYMBOL_GPL(ir_keyup); + +/** + * ir_timer_keyup() - generates a keyup event after a timeout + * @cookie: a pointer to struct ir_input_dev passed to setup_timer() + * + * This routine will generate a keyup event some time after a keydown event + * is generated when no further activity has been detected. + */ +static void ir_timer_keyup(unsigned long cookie) +{ + struct ir_input_dev *ir = (struct ir_input_dev *)cookie; + unsigned long flags; + + /* + * ir->keyup_jiffies is used to prevent a race condition if a + * hardware interrupt occurs at this point and the keyup timer + * event is moved further into the future as a result. + * + * The timer will then be reactivated and this function called + * again in the future. We need to exit gracefully in that case + * to allow the input subsystem to do its auto-repeat magic or + * a keyup event might follow immediately after the keydown. + */ + spin_lock_irqsave(&ir->keylock, flags); + if (time_is_before_eq_jiffies(ir->keyup_jiffies)) + ir_do_keyup(ir); + spin_unlock_irqrestore(&ir->keylock, flags); +} + +/** + * ir_repeat() - notifies the IR core that a key is still pressed + * @dev: the struct input_dev descriptor of the device + * + * This routine is used by IR decoders when a repeat message which does + * not include the necessary bits to reproduce the scancode has been + * received. + */ +void ir_repeat(struct input_dev *dev) +{ + unsigned long flags; + struct ir_input_dev *ir = input_get_drvdata(dev); + + spin_lock_irqsave(&ir->keylock, flags); + + input_event(dev, EV_MSC, MSC_SCAN, ir->last_scancode); + + if (!ir->keypressed) + goto out; + + ir->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT); + mod_timer(&ir->timer_keyup, ir->keyup_jiffies); + +out: + spin_unlock_irqrestore(&ir->keylock, flags); +} +EXPORT_SYMBOL_GPL(ir_repeat); + +/** + * ir_do_keydown() - internal function to process a keypress + * @dev: the struct input_dev descriptor of the device + * @scancode: the scancode of the keypress + * @keycode: the keycode of the keypress + * @toggle: the toggle value of the keypress + * + * This function is used internally to register a keypress, it must be + * called with keylock held. + */ +static void ir_do_keydown(struct input_dev *dev, int scancode, + u32 keycode, u8 toggle) +{ + struct ir_input_dev *ir = input_get_drvdata(dev); + + input_event(dev, EV_MSC, MSC_SCAN, scancode); + + /* Repeat event? */ + if (ir->keypressed && + ir->last_scancode == scancode && + ir->last_toggle == toggle) + return; + + /* Release old keypress */ + ir_do_keyup(ir); + + ir->last_scancode = scancode; + ir->last_toggle = toggle; + ir->last_keycode = keycode; + + if (keycode == KEY_RESERVED) + return; + + /* Register a keypress */ + ir->keypressed = true; + IR_dprintk(1, "%s: key down event, key 0x%04x, scancode 0x%04x\n", + dev->name, keycode, scancode); + input_report_key(dev, ir->last_keycode, 1); + input_sync(dev); +} + +/** + * ir_keydown() - generates input event for a key press + * @dev: the struct input_dev descriptor of the device + * @scancode: the scancode that we're seeking + * @toggle: the toggle value (protocol dependent, if the protocol doesn't + * support toggle values, this should be set to zero) + * + * This routine is used by the input routines when a key is pressed at the + * IR. It gets the keycode for a scancode and reports an input event via + * input_report_key(). + */ +void ir_keydown(struct input_dev *dev, int scancode, u8 toggle) +{ + unsigned long flags; + struct ir_input_dev *ir = input_get_drvdata(dev); + u32 keycode = ir_g_keycode_from_table(dev, scancode); + + spin_lock_irqsave(&ir->keylock, flags); + ir_do_keydown(dev, scancode, keycode, toggle); + + if (ir->keypressed) { + ir->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT); + mod_timer(&ir->timer_keyup, ir->keyup_jiffies); + } + spin_unlock_irqrestore(&ir->keylock, flags); +} +EXPORT_SYMBOL_GPL(ir_keydown); + +/** + * ir_keydown_notimeout() - generates input event for a key press without + * an automatic keyup event at a later time + * @dev: the struct input_dev descriptor of the device + * @scancode: the scancode that we're seeking + * @toggle: the toggle value (protocol dependent, if the protocol doesn't + * support toggle values, this should be set to zero) + * + * This routine is used by the input routines when a key is pressed at the + * IR. It gets the keycode for a scancode and reports an input event via + * input_report_key(). The driver must manually call ir_keyup() at a later + * stage. + */ +void ir_keydown_notimeout(struct input_dev *dev, int scancode, u8 toggle) +{ + unsigned long flags; + struct ir_input_dev *ir = input_get_drvdata(dev); + u32 keycode = ir_g_keycode_from_table(dev, scancode); + + spin_lock_irqsave(&ir->keylock, flags); + ir_do_keydown(dev, scancode, keycode, toggle); + spin_unlock_irqrestore(&ir->keylock, flags); +} +EXPORT_SYMBOL_GPL(ir_keydown_notimeout); + +static int ir_open(struct input_dev *input_dev) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); + + return ir_dev->props->open(ir_dev->props->priv); +} + +static void ir_close(struct input_dev *input_dev) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); + + ir_dev->props->close(ir_dev->props->priv); +} + +/** + * __ir_input_register() - sets the IR keycode table and add the handlers + * for keymap table get/set + * @input_dev: the struct input_dev descriptor of the device + * @rc_tab: the struct ir_scancode_table table of scancode/keymap + * + * This routine is used to initialize the input infrastructure + * to work with an IR. + * It will register the input/evdev interface for the device and + * register the syfs code for IR class + */ +int __ir_input_register(struct input_dev *input_dev, + const struct ir_scancode_table *rc_tab, + struct ir_dev_props *props, + const char *driver_name) +{ + struct ir_input_dev *ir_dev; + int rc; + + if (rc_tab->scan == NULL || !rc_tab->size) + return -EINVAL; + + ir_dev = kzalloc(sizeof(*ir_dev), GFP_KERNEL); + if (!ir_dev) + return -ENOMEM; + + ir_dev->driver_name = kasprintf(GFP_KERNEL, "%s", driver_name); + if (!ir_dev->driver_name) { + rc = -ENOMEM; + goto out_dev; + } + + input_dev->getkeycode_new = ir_getkeycode; + input_dev->setkeycode_new = ir_setkeycode; + input_set_drvdata(input_dev, ir_dev); + ir_dev->input_dev = input_dev; + + spin_lock_init(&ir_dev->rc_tab.lock); + spin_lock_init(&ir_dev->keylock); + setup_timer(&ir_dev->timer_keyup, ir_timer_keyup, (unsigned long)ir_dev); + + if (props) { + ir_dev->props = props; + if (props->open) + input_dev->open = ir_open; + if (props->close) + input_dev->close = ir_close; + } + + set_bit(EV_KEY, input_dev->evbit); + set_bit(EV_REP, input_dev->evbit); + set_bit(EV_MSC, input_dev->evbit); + set_bit(MSC_SCAN, input_dev->mscbit); + + rc = ir_setkeytable(ir_dev, rc_tab); + if (rc) + goto out_name; + + rc = ir_register_class(input_dev); + if (rc < 0) + goto out_table; + + if (ir_dev->props) + if (ir_dev->props->driver_type == RC_DRIVER_IR_RAW) { + rc = ir_raw_event_register(input_dev); + if (rc < 0) + goto out_event; + } + + rc = ir_register_input(input_dev); + if (rc < 0) + goto out_event; + + IR_dprintk(1, "Registered input device on %s for %s remote%s.\n", + driver_name, rc_tab->name, + (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_IR_RAW) ? + " in raw mode" : ""); + + /* + * Default delay of 250ms is too short for some protocols, expecially + * since the timeout is currently set to 250ms. Increase it to 500ms, + * to avoid wrong repetition of the keycodes. + */ + input_dev->rep[REP_DELAY] = 500; + + return 0; + +out_event: + ir_unregister_class(input_dev); +out_table: + ir_free_table(&ir_dev->rc_tab); +out_name: + kfree(ir_dev->driver_name); +out_dev: + kfree(ir_dev); + return rc; +} +EXPORT_SYMBOL_GPL(__ir_input_register); + +/** + * ir_input_unregister() - unregisters IR and frees resources + * @input_dev: the struct input_dev descriptor of the device + + * This routine is used to free memory and de-register interfaces. + */ +void ir_input_unregister(struct input_dev *input_dev) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); + + if (!ir_dev) + return; + + IR_dprintk(1, "Freed keycode table\n"); + + del_timer_sync(&ir_dev->timer_keyup); + if (ir_dev->props) + if (ir_dev->props->driver_type == RC_DRIVER_IR_RAW) + ir_raw_event_unregister(input_dev); + + ir_free_table(&ir_dev->rc_tab); + + ir_unregister_class(input_dev); + + kfree(ir_dev->driver_name); + kfree(ir_dev); +} +EXPORT_SYMBOL_GPL(ir_input_unregister); + +int ir_core_debug; /* ir_debug level (0,1,2) */ +EXPORT_SYMBOL_GPL(ir_core_debug); +module_param_named(debug, ir_core_debug, int, 0644); + +MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); +MODULE_LICENSE("GPL"); |
