1 /* 2 * via-pmu event device for reporting some events that come through the PMU 3 * 4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 14 * NON INFRINGEMENT. See the GNU General Public License for more 15 * details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 */ 22 23 #include <linux/input.h> 24 #include <linux/adb.h> 25 #include <linux/pmu.h> 26 #include "via-pmu-event.h" 27 28 static struct input_dev *pmu_input_dev; 29 30 static int __init via_pmu_event_init(void) 31 { 32 int err; 33 34 /* do other models report button/lid status? */ 35 if (pmu_get_model() != PMU_KEYLARGO_BASED) 36 return -ENODEV; 37 38 pmu_input_dev = input_allocate_device(); 39 if (!pmu_input_dev) 40 return -ENOMEM; 41 42 pmu_input_dev->name = "PMU"; 43 pmu_input_dev->id.bustype = BUS_HOST; 44 pmu_input_dev->id.vendor = 0x0001; 45 pmu_input_dev->id.product = 0x0001; 46 pmu_input_dev->id.version = 0x0100; 47 48 set_bit(EV_KEY, pmu_input_dev->evbit); 49 set_bit(EV_SW, pmu_input_dev->evbit); 50 set_bit(KEY_POWER, pmu_input_dev->keybit); 51 set_bit(SW_LID, pmu_input_dev->swbit); 52 53 err = input_register_device(pmu_input_dev); 54 if (err) 55 input_free_device(pmu_input_dev); 56 return err; 57 } 58 59 void via_pmu_event(int key, int down) 60 { 61 62 if (unlikely(!pmu_input_dev)) 63 return; 64 65 switch (key) { 66 case PMU_EVT_POWER: 67 input_report_key(pmu_input_dev, KEY_POWER, down); 68 break; 69 case PMU_EVT_LID: 70 input_report_switch(pmu_input_dev, SW_LID, down); 71 break; 72 default: 73 /* no such key handled */ 74 return; 75 } 76 77 input_sync(pmu_input_dev); 78 } 79 80 late_initcall(via_pmu_event_init); 81