1 // SPDX-License-Identifier: GPL-2.0
2 /* dvb-usb-remote.c is part of the DVB USB library.
4  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
5  * see dvb-usb-init.c for copyright information.
7 …* This file contains functions for initializing the input-device and for handling remote-control-q…
9 #include "dvb-usb-common.h"
20 	if (ke->flags & INPUT_KEYMAP_BY_INDEX) {  in legacy_dvb_usb_get_keymap_index()
21 		index = ke->index;  in legacy_dvb_usb_get_keymap_index()
48 	struct dvb_usb_device *d = input_get_drvdata(dev);  in legacy_dvb_usb_getkeycode()  local
49 	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;  in legacy_dvb_usb_getkeycode()
50 	unsigned int keymap_size = d->props.rc.legacy.rc_map_size;  in legacy_dvb_usb_getkeycode()
55 		return -EINVAL;  in legacy_dvb_usb_getkeycode()
57 	ke->keycode = keymap[index].keycode;  in legacy_dvb_usb_getkeycode()
58 	if (ke->keycode == KEY_UNKNOWN)  in legacy_dvb_usb_getkeycode()
59 		ke->keycode = KEY_RESERVED;  in legacy_dvb_usb_getkeycode()
60 	ke->len = sizeof(keymap[index].scancode);  in legacy_dvb_usb_getkeycode()
61 	memcpy(&ke->scancode, &keymap[index].scancode, ke->len);  in legacy_dvb_usb_getkeycode()
62 	ke->index = index;  in legacy_dvb_usb_getkeycode()
71 	struct dvb_usb_device *d = input_get_drvdata(dev);  in legacy_dvb_usb_setkeycode()  local
72 	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;  in legacy_dvb_usb_setkeycode()
73 	unsigned int keymap_size = d->props.rc.legacy.rc_map_size;  in legacy_dvb_usb_setkeycode()
82 	 * the old one - or maybe just allocating some spare space  in legacy_dvb_usb_setkeycode()
85 		return -EINVAL;  in legacy_dvb_usb_setkeycode()
88 	keymap->keycode = ke->keycode;  in legacy_dvb_usb_setkeycode()
89 	__set_bit(ke->keycode, dev->keybit);  in legacy_dvb_usb_setkeycode()
92 		__clear_bit(*old_keycode, dev->keybit);  in legacy_dvb_usb_setkeycode()
95 				__set_bit(*old_keycode, dev->keybit);  in legacy_dvb_usb_setkeycode()
104 /* Remote-control poll function - called every dib->rc_query_interval ms to see
111 	struct dvb_usb_device *d =  in legacy_dvb_usb_read_remote_control()  local
123 	if (d->props.rc.legacy.rc_query(d,&event,&state)) {  in legacy_dvb_usb_read_remote_control()
134 			d->last_event = event;  in legacy_dvb_usb_read_remote_control()
135 			input_event(d->input_dev, EV_KEY, event, 1);  in legacy_dvb_usb_read_remote_control()
136 			input_sync(d->input_dev);  in legacy_dvb_usb_read_remote_control()
137 			input_event(d->input_dev, EV_KEY, d->last_event, 0);  in legacy_dvb_usb_read_remote_control()
138 			input_sync(d->input_dev);  in legacy_dvb_usb_read_remote_control()
142 			input_event(d->input_dev, EV_KEY, event, 1);  in legacy_dvb_usb_read_remote_control()
143 			input_sync(d->input_dev);  in legacy_dvb_usb_read_remote_control()
144 			input_event(d->input_dev, EV_KEY, d->last_event, 0);  in legacy_dvb_usb_read_remote_control()
145 			input_sync(d->input_dev);  in legacy_dvb_usb_read_remote_control()
155 			if (d->last_state != REMOTE_NO_KEY_PRESSED) {  in legacy_dvb_usb_read_remote_control()
156 				deb_rc("releasing event %d\n",d->last_event);  in legacy_dvb_usb_read_remote_control()
157 				input_event(d->rc_input_dev, EV_KEY, d->last_event, 0);  in legacy_dvb_usb_read_remote_control()
158 				input_sync(d->rc_input_dev);  in legacy_dvb_usb_read_remote_control()
160 			d->last_state = REMOTE_NO_KEY_PRESSED;  in legacy_dvb_usb_read_remote_control()
161 			d->last_event = 0;  in legacy_dvb_usb_read_remote_control()
165 			deb_rc("pressing event %d\n",event);  in legacy_dvb_usb_read_remote_control()
167 			input_event(d->rc_input_dev, EV_KEY, event, 1);  in legacy_dvb_usb_read_remote_control()
168 			input_sync(d->rc_input_dev);  in legacy_dvb_usb_read_remote_control()
170 			d->last_event = event;  in legacy_dvb_usb_read_remote_control()
171 			d->last_state = REMOTE_KEY_PRESSED;  in legacy_dvb_usb_read_remote_control()
175 			if (d->last_state != REMOTE_NO_KEY_PRESSED) {  in legacy_dvb_usb_read_remote_control()
176 				deb_rc("repeating event %d\n",d->last_event);  in legacy_dvb_usb_read_remote_control()
177 				input_event(d->rc_input_dev, EV_KEY, d->last_event, 2);  in legacy_dvb_usb_read_remote_control()
178 				input_sync(d->rc_input_dev);  in legacy_dvb_usb_read_remote_control()
179 				d->last_state = REMOTE_KEY_REPEAT;  in legacy_dvb_usb_read_remote_control()
187 	schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc.legacy.rc_interval));  in legacy_dvb_usb_read_remote_control()
190 static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d)  in legacy_dvb_usb_remote_init()  argument
197 		return -ENOMEM;  in legacy_dvb_usb_remote_init()
199 	input_dev->evbit[0] = BIT_MASK(EV_KEY);  in legacy_dvb_usb_remote_init()
200 	input_dev->name = "IR-receiver inside an USB DVB receiver";  in legacy_dvb_usb_remote_init()
201 	input_dev->phys = d->rc_phys;  in legacy_dvb_usb_remote_init()
202 	usb_to_input_id(d->udev, &input_dev->id);  in legacy_dvb_usb_remote_init()
203 	input_dev->dev.parent = &d->udev->dev;  in legacy_dvb_usb_remote_init()
204 	d->input_dev = input_dev;  in legacy_dvb_usb_remote_init()
205 	d->rc_dev = NULL;  in legacy_dvb_usb_remote_init()
207 	input_dev->getkeycode = legacy_dvb_usb_getkeycode;  in legacy_dvb_usb_remote_init()
208 	input_dev->setkeycode = legacy_dvb_usb_setkeycode;  in legacy_dvb_usb_remote_init()
211 	deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size);  in legacy_dvb_usb_remote_init()
212 	for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {  in legacy_dvb_usb_remote_init()
213 		deb_rc("setting bit for event %d item %d\n",  in legacy_dvb_usb_remote_init()
214 			d->props.rc.legacy.rc_map_table[i].keycode, i);  in legacy_dvb_usb_remote_init()
215 		set_bit(d->props.rc.legacy.rc_map_table[i].keycode, input_dev->keybit);  in legacy_dvb_usb_remote_init()
218 	/* setting these two values to non-zero, we have to manage key repeats */  in legacy_dvb_usb_remote_init()
219 	input_dev->rep[REP_PERIOD] = d->props.rc.legacy.rc_interval;  in legacy_dvb_usb_remote_init()
220 	input_dev->rep[REP_DELAY]  = d->props.rc.legacy.rc_interval + 150;  in legacy_dvb_usb_remote_init()
222 	input_set_drvdata(input_dev, d);  in legacy_dvb_usb_remote_init()
228 	rc_interval = d->props.rc.legacy.rc_interval;  in legacy_dvb_usb_remote_init()
230 	INIT_DELAYED_WORK(&d->rc_query_work, legacy_dvb_usb_read_remote_control);  in legacy_dvb_usb_remote_init()
232 	info("schedule remote query interval to %d msecs.", rc_interval);  in legacy_dvb_usb_remote_init()
233 	schedule_delayed_work(&d->rc_query_work,  in legacy_dvb_usb_remote_init()
236 	d->state |= DVB_USB_STATE_REMOTE;  in legacy_dvb_usb_remote_init()
241 /* Remote-control poll function - called every dib->rc_query_interval ms to see
248 	struct dvb_usb_device *d =  in dvb_usb_read_remote_control()  local
258 	if (dvb_usb_disable_rc_polling || d->props.rc.core.bulk_mode)  in dvb_usb_read_remote_control()
261 	err = d->props.rc.core.rc_query(d);  in dvb_usb_read_remote_control()
263 		err("error %d while querying for an remote control event.", err);  in dvb_usb_read_remote_control()
265 	schedule_delayed_work(&d->rc_query_work,  in dvb_usb_read_remote_control()
266 			      msecs_to_jiffies(d->props.rc.core.rc_interval));  in dvb_usb_read_remote_control()
269 static int rc_core_dvb_usb_remote_init(struct dvb_usb_device *d)  in rc_core_dvb_usb_remote_init()  argument
274 	dev = rc_allocate_device(d->props.rc.core.driver_type);  in rc_core_dvb_usb_remote_init()
276 		return -ENOMEM;  in rc_core_dvb_usb_remote_init()
278 	dev->driver_name = d->props.rc.core.module_name;  in rc_core_dvb_usb_remote_init()
279 	dev->map_name = d->props.rc.core.rc_codes;  in rc_core_dvb_usb_remote_init()
280 	dev->change_protocol = d->props.rc.core.change_protocol;  in rc_core_dvb_usb_remote_init()
281 	dev->allowed_protocols = d->props.rc.core.allowed_protos;  in rc_core_dvb_usb_remote_init()
282 	usb_to_input_id(d->udev, &dev->input_id);  in rc_core_dvb_usb_remote_init()
283 	dev->device_name = d->desc->name;  in rc_core_dvb_usb_remote_init()
284 	dev->input_phys = d->rc_phys;  in rc_core_dvb_usb_remote_init()
285 	dev->dev.parent = &d->udev->dev;  in rc_core_dvb_usb_remote_init()
286 	dev->priv = d;  in rc_core_dvb_usb_remote_init()
287 	dev->scancode_mask = d->props.rc.core.scancode_mask;  in rc_core_dvb_usb_remote_init()
295 	d->input_dev = NULL;  in rc_core_dvb_usb_remote_init()
296 	d->rc_dev = dev;  in rc_core_dvb_usb_remote_init()
298 	if (!d->props.rc.core.rc_query || d->props.rc.core.bulk_mode)  in rc_core_dvb_usb_remote_init()
301 	/* Polling mode - initialize a work queue for handling it */  in rc_core_dvb_usb_remote_init()
302 	INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);  in rc_core_dvb_usb_remote_init()
304 	rc_interval = d->props.rc.core.rc_interval;  in rc_core_dvb_usb_remote_init()
306 	info("schedule remote query interval to %d msecs.", rc_interval);  in rc_core_dvb_usb_remote_init()
307 	schedule_delayed_work(&d->rc_query_work,  in rc_core_dvb_usb_remote_init()
313 int dvb_usb_remote_init(struct dvb_usb_device *d)  in dvb_usb_remote_init()  argument
320 	if (d->props.rc.legacy.rc_map_table && d->props.rc.legacy.rc_query)  in dvb_usb_remote_init()
321 		d->props.rc.mode = DVB_RC_LEGACY;  in dvb_usb_remote_init()
322 	else if (d->props.rc.core.rc_codes)  in dvb_usb_remote_init()
323 		d->props.rc.mode = DVB_RC_CORE;  in dvb_usb_remote_init()
327 	usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));  in dvb_usb_remote_init()
328 	strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));  in dvb_usb_remote_init()
330 	/* Start the remote-control polling. */  in dvb_usb_remote_init()
331 	if (d->props.rc.legacy.rc_interval < 40)  in dvb_usb_remote_init()
332 		d->props.rc.legacy.rc_interval = 100; /* default */  in dvb_usb_remote_init()
334 	if (d->props.rc.mode == DVB_RC_LEGACY)  in dvb_usb_remote_init()
335 		err = legacy_dvb_usb_remote_init(d);  in dvb_usb_remote_init()
337 		err = rc_core_dvb_usb_remote_init(d);  in dvb_usb_remote_init()
341 	d->state |= DVB_USB_STATE_REMOTE;  in dvb_usb_remote_init()
346 int dvb_usb_remote_exit(struct dvb_usb_device *d)  in dvb_usb_remote_exit()  argument
348 	if (d->state & DVB_USB_STATE_REMOTE) {  in dvb_usb_remote_exit()
349 		cancel_delayed_work_sync(&d->rc_query_work);  in dvb_usb_remote_exit()
350 		if (d->props.rc.mode == DVB_RC_LEGACY)  in dvb_usb_remote_exit()
351 			input_unregister_device(d->input_dev);  in dvb_usb_remote_exit()
353 			rc_unregister_device(d->rc_dev);  in dvb_usb_remote_exit()
355 	d->state &= ~DVB_USB_STATE_REMOTE;  in dvb_usb_remote_exit()
362 int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *d,  in dvb_usb_nec_rc_key_to_event()  argument
366 	struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;  in dvb_usb_nec_rc_key_to_event()
379 			for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)  in dvb_usb_nec_rc_key_to_event()
386 			deb_err("key mapping failed - no appropriate key found in keymapping\n");  in dvb_usb_nec_rc_key_to_event()
392 			deb_err("unknown type of remote status: %d\n",keybuf[0]);  in dvb_usb_nec_rc_key_to_event()