mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 06:24:53 +08:00
c942fddf87
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>
62 lines
1.7 KiB
C
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)
|