1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/input/sparse-keymap.h>
25 	struct key_entry *key;  in sparse_keymap_get_key_index()  local
28 	for (key = dev->keycode; key->type != KE_END; key++) {  in sparse_keymap_get_key_index()
29 		if (key->type == KE_KEY) {  in sparse_keymap_get_key_index()
30 			if (key == k)  in sparse_keymap_get_key_index()
42 	struct key_entry *key;  in sparse_keymap_entry_by_index()  local
45 	for (key = dev->keycode; key->type != KE_END; key++)  in sparse_keymap_entry_by_index()
46 		if (key->type == KE_KEY)  in sparse_keymap_entry_by_index()
48 				return key;  in sparse_keymap_entry_by_index()
54  * sparse_keymap_entry_from_scancode - perform sparse keymap lookup
64 	struct key_entry *key;  in sparse_keymap_entry_from_scancode()  local
66 	for (key = dev->keycode; key->type != KE_END; key++)  in sparse_keymap_entry_from_scancode()
67 		if (code == key->code)  in sparse_keymap_entry_from_scancode()
68 			return key;  in sparse_keymap_entry_from_scancode()
75  * sparse_keymap_entry_from_keycode - perform sparse keymap lookup
77  * @keycode: Key code
85 	struct key_entry *key;  in sparse_keymap_entry_from_keycode()  local
87 	for (key = dev->keycode; key->type != KE_END; key++)  in sparse_keymap_entry_from_keycode()
88 		if (key->type == KE_KEY && keycode == key->keycode)  in sparse_keymap_entry_from_keycode()
89 			return key;  in sparse_keymap_entry_from_keycode()
98 	struct key_entry *key;  in sparse_keymap_locate()  local
101 	if (ke->flags & INPUT_KEYMAP_BY_INDEX)  in sparse_keymap_locate()
102 		key = sparse_keymap_entry_by_index(dev, ke->index);  in sparse_keymap_locate()
104 		key = sparse_keymap_entry_from_scancode(dev, scancode);  in sparse_keymap_locate()
106 		key = NULL;  in sparse_keymap_locate()
108 	return key;  in sparse_keymap_locate()
114 	const struct key_entry *key;  in sparse_keymap_getkeycode()  local
116 	if (dev->keycode) {  in sparse_keymap_getkeycode()
117 		key = sparse_keymap_locate(dev, ke);  in sparse_keymap_getkeycode()
118 		if (key && key->type == KE_KEY) {  in sparse_keymap_getkeycode()
119 			ke->keycode = key->keycode;  in sparse_keymap_getkeycode()
120 			if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))  in sparse_keymap_getkeycode()
121 				ke->index =  in sparse_keymap_getkeycode()
122 					sparse_keymap_get_key_index(dev, key);  in sparse_keymap_getkeycode()
123 			ke->len = sizeof(key->code);  in sparse_keymap_getkeycode()
124 			memcpy(ke->scancode, &key->code, sizeof(key->code));  in sparse_keymap_getkeycode()
129 	return -EINVAL;  in sparse_keymap_getkeycode()
136 	struct key_entry *key;  in sparse_keymap_setkeycode()  local
138 	if (dev->keycode) {  in sparse_keymap_setkeycode()
139 		key = sparse_keymap_locate(dev, ke);  in sparse_keymap_setkeycode()
140 		if (key && key->type == KE_KEY) {  in sparse_keymap_setkeycode()
141 			*old_keycode = key->keycode;  in sparse_keymap_setkeycode()
142 			key->keycode = ke->keycode;  in sparse_keymap_setkeycode()
143 			set_bit(ke->keycode, dev->keybit);  in sparse_keymap_setkeycode()
145 				clear_bit(*old_keycode, dev->keybit);  in sparse_keymap_setkeycode()
150 	return -EINVAL;  in sparse_keymap_setkeycode()
154  * sparse_keymap_setup - set up sparse keymap for an input device
176 	for (e = keymap; e->type != KE_END; e++)  in sparse_keymap_setup()
179 	map = devm_kmemdup(&dev->dev, keymap, map_size * sizeof(*map),  in sparse_keymap_setup()
182 		return -ENOMEM;  in sparse_keymap_setup()
193 		switch (entry->type) {  in sparse_keymap_setup()
195 			__set_bit(EV_KEY, dev->evbit);  in sparse_keymap_setup()
196 			__set_bit(entry->keycode, dev->keybit);  in sparse_keymap_setup()
201 			__set_bit(EV_SW, dev->evbit);  in sparse_keymap_setup()
202 			__set_bit(entry->sw.code, dev->swbit);  in sparse_keymap_setup()
207 	if (test_bit(EV_KEY, dev->evbit)) {  in sparse_keymap_setup()
208 		__set_bit(KEY_UNKNOWN, dev->keybit);  in sparse_keymap_setup()
209 		__set_bit(EV_MSC, dev->evbit);  in sparse_keymap_setup()
210 		__set_bit(MSC_SCAN, dev->mscbit);  in sparse_keymap_setup()
213 	dev->keycode = map;  in sparse_keymap_setup()
214 	dev->keycodemax = map_size;  in sparse_keymap_setup()
215 	dev->getkeycode = sparse_keymap_getkeycode;  in sparse_keymap_setup()
216 	dev->setkeycode = sparse_keymap_setkeycode;  in sparse_keymap_setup()
223  * sparse_keymap_report_entry - report event corresponding to given key entry
225  * @ke: key entry describing event
227  * @autorelease: Signals whether release event should be emitted for %KE_KEY
237 	switch (ke->type) {  in sparse_keymap_report_entry()
239 		input_event(dev, EV_MSC, MSC_SCAN, ke->code);  in sparse_keymap_report_entry()
240 		input_report_key(dev, ke->keycode, value);  in sparse_keymap_report_entry()
243 			input_report_key(dev, ke->keycode, 0);  in sparse_keymap_report_entry()
249 		value = ke->sw.value;  in sparse_keymap_report_entry()
253 		input_report_switch(dev, ke->sw.code, value);  in sparse_keymap_report_entry()
261  * sparse_keymap_report_event - report event corresponding to given scancode
265  * @autorelease: Signals whether release event should be emitted for %KE_KEY
285 	/* Report an unknown key event as a debugging aid */  in sparse_keymap_report_event()