1 /* 2 * Provide access to keypad events on the configured device. 3 * 4 * Copyright (C) 2018, 2023 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include "input-event-server.h" 23 24 #include <l4/re/event> 25 #include <l4/sys/irq.h> 26 #include <l4/sys/kip.h> 27 28 29 30 /* Reset the buffer state and return the buffer memory capability. */ 31 32 long Input_event_server::get_buffer(l4re_ds_t *mem) 33 { 34 _events.reset(); 35 *mem = _mem; 36 return L4_EOK; 37 } 38 39 /* Obtain the interrupt capability. */ 40 41 long Input_event_server::bind(int irqnum, l4_cap_idx_t irq) 42 { 43 (void) irqnum; 44 45 _irq = irq; 46 return L4_EOK; 47 } 48 49 50 51 /* Event sending methods. */ 52 53 void Input_event_server::send_event(int type, int code, int value) 54 { 55 L4Re::Event_buffer::Event event; 56 57 event.time = l4_kip_clock(l4re_kip()); 58 event.payload.stream_id = 0; 59 event.payload.type = type; 60 event.payload.code = code; 61 event.payload.value = value; 62 63 /* Queue the event and trigger the interrupt. */ 64 65 _events.put(event); 66 l4_irq_trigger(_irq); 67 }