1a59d1b8e0
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __SOUND_SEQ_DEVICE_H
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#define __SOUND_SEQ_DEVICE_H
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/*
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* ALSA sequencer device management
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* Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de>
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*/
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/*
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* registered device information
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*/
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struct snd_seq_device {
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/* device info */
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struct snd_card *card; /* sound card */
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int device; /* device number */
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const char *id; /* driver id */
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char name[80]; /* device name */
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int argsize; /* size of the argument */
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void *driver_data; /* private data for driver */
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void *private_data; /* private data for the caller */
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void (*private_free)(struct snd_seq_device *device);
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struct device dev;
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};
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#define to_seq_dev(_dev) \
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container_of(_dev, struct snd_seq_device, dev)
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/* sequencer driver */
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/* driver operators
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* probe:
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* Initialize the device with given parameters.
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* Typically,
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* 1. call snd_hwdep_new
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* 2. allocate private data and initialize it
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* 3. call snd_hwdep_register
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* 4. store the instance to dev->driver_data pointer.
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*
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* remove:
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* Release the private data.
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* Typically, call snd_device_free(dev->card, dev->driver_data)
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*/
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struct snd_seq_driver {
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struct device_driver driver;
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char *id;
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int argsize;
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};
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#define to_seq_drv(_drv) \
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container_of(_drv, struct snd_seq_driver, driver)
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/*
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* prototypes
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*/
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#ifdef CONFIG_MODULES
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void snd_seq_device_load_drivers(void);
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#else
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#define snd_seq_device_load_drivers()
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#endif
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int snd_seq_device_new(struct snd_card *card, int device, const char *id,
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int argsize, struct snd_seq_device **result);
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#define SNDRV_SEQ_DEVICE_ARGPTR(dev) (void *)((char *)(dev) + sizeof(struct snd_seq_device))
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int __must_check __snd_seq_driver_register(struct snd_seq_driver *drv,
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struct module *mod);
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#define snd_seq_driver_register(drv) \
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__snd_seq_driver_register(drv, THIS_MODULE)
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void snd_seq_driver_unregister(struct snd_seq_driver *drv);
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#define module_snd_seq_driver(drv) \
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module_driver(drv, snd_seq_driver_register, snd_seq_driver_unregister)
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/*
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* id strings for generic devices
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*/
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#define SNDRV_SEQ_DEV_ID_MIDISYNTH "seq-midi"
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#define SNDRV_SEQ_DEV_ID_OPL3 "opl3-synth"
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#endif /* __SOUND_SEQ_DEVICE_H */
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