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https://github.com/edk2-porting/linux-next.git
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9e8e30a0cc
Add an input device for the button and lid switch so that userspace gets notified about the user pressing them via the standard input layer. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/*
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* via-pmu event device for reporting some events that come through the PMU
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*
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <linux/input.h>
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#include <linux/adb.h>
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#include <linux/pmu.h>
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#include "via-pmu-event.h"
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static struct input_dev *pmu_input_dev;
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static int __init via_pmu_event_init(void)
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{
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int err;
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/* do other models report button/lid status? */
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if (pmu_get_model() != PMU_KEYLARGO_BASED)
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return -ENODEV;
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pmu_input_dev = input_allocate_device();
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if (!pmu_input_dev)
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return -ENOMEM;
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pmu_input_dev->name = "PMU";
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pmu_input_dev->id.bustype = BUS_HOST;
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pmu_input_dev->id.vendor = 0x0001;
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pmu_input_dev->id.product = 0x0001;
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pmu_input_dev->id.version = 0x0100;
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set_bit(EV_KEY, pmu_input_dev->evbit);
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set_bit(EV_SW, pmu_input_dev->evbit);
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set_bit(KEY_POWER, pmu_input_dev->keybit);
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set_bit(SW_LID, pmu_input_dev->swbit);
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err = input_register_device(pmu_input_dev);
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if (err)
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input_free_device(pmu_input_dev);
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return err;
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}
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void via_pmu_event(int key, int down)
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{
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if (unlikely(!pmu_input_dev))
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return;
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switch (key) {
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case PMU_EVT_POWER:
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input_report_key(pmu_input_dev, KEY_POWER, down);
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break;
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case PMU_EVT_LID:
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input_report_switch(pmu_input_dev, SW_LID, down);
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break;
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default:
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/* no such key handled */
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return;
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}
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input_sync(pmu_input_dev);
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}
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late_initcall(via_pmu_event_init);
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