1/* 2 * Digital Beep Input Interface for HD-audio codec 3 * 4 * Author: Matthew Ranostay <mranostay@embeddedalley.com> 5 * Copyright (c) 2008 Embedded Alley Solutions Inc 6 * 7 * This driver is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This driver is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22#ifndef __SOUND_HDA_BEEP_H 23#define __SOUND_HDA_BEEP_H 24 25#include "hda_codec.h" 26 27/* beep information */ 28struct hda_beep { 29 struct input_dev *dev; 30 struct hda_codec *codec; 31 char phys[32]; 32 int tone; 33 hda_nid_t nid; 34 unsigned int enabled:1; 35 unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */ 36 struct work_struct beep_work; /* scheduled task for beep event */ 37}; 38 39#ifdef CONFIG_SND_HDA_INPUT_BEEP 40int snd_hda_attach_beep_device(struct hda_codec *codec, int nid); 41void snd_hda_detach_beep_device(struct hda_codec *codec); 42#else 43#define snd_hda_attach_beep_device(...) 0 44#define snd_hda_detach_beep_device(...) 45#endif 46#endif 47