| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 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); |