linux/drivers/media/pci/ivtv/ivtv-alsa.h
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 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

  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 [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] 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

  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 [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] 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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00

62 lines
1.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
* Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
*/
struct snd_card;
struct snd_ivtv_card {
struct v4l2_device *v4l2_dev;
struct snd_card *sc;
unsigned int capture_transfer_done;
unsigned int hwptr_done_capture;
struct snd_pcm_substream *capture_pcm_substream;
spinlock_t slock;
};
extern int ivtv_alsa_debug;
/*
* File operations that manipulate the encoder or video or audio subdevices
* need to be serialized. Use the same lock we use for v4l2 file ops.
*/
static inline void snd_ivtv_lock(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
mutex_lock(&itv->serialize_lock);
}
static inline void snd_ivtv_unlock(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
mutex_unlock(&itv->serialize_lock);
}
#define IVTV_ALSA_DBGFLG_WARN (1 << 0)
#define IVTV_ALSA_DBGFLG_INFO (1 << 1)
#define IVTV_ALSA_DEBUG(x, type, fmt, args...) \
do { \
if ((x) & ivtv_alsa_debug) \
pr_info("%s-alsa: " type ": " fmt, \
v4l2_dev->name , ## args); \
} while (0)
#define IVTV_ALSA_DEBUG_WARN(fmt, args...) \
IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
#define IVTV_ALSA_DEBUG_INFO(fmt, args...) \
IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_ALSA_ERR(fmt, args...) \
pr_err("%s-alsa: " fmt, v4l2_dev->name , ## args)
#define IVTV_ALSA_WARN(fmt, args...) \
pr_warn("%s-alsa: " fmt, v4l2_dev->name , ## args)
#define IVTV_ALSA_INFO(fmt, args...) \
pr_info("%s-alsa: " fmt, v4l2_dev->name , ## args)