forked from Minki/linux
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>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* ALSA interface to cx18 PCM capture streams
|
|
*
|
|
* Copyright (C) 2009 Andy Walls <awalls@md.metrocast.net>
|
|
*/
|
|
|
|
struct snd_card;
|
|
|
|
struct snd_cx18_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 cx18_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_cx18_lock(struct snd_cx18_card *cxsc)
|
|
{
|
|
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
|
mutex_lock(&cx->serialize_lock);
|
|
}
|
|
|
|
static inline void snd_cx18_unlock(struct snd_cx18_card *cxsc)
|
|
{
|
|
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
|
mutex_unlock(&cx->serialize_lock);
|
|
}
|
|
|
|
#define CX18_ALSA_DBGFLG_WARN (1 << 0)
|
|
#define CX18_ALSA_DBGFLG_INFO (1 << 1)
|
|
|
|
#define CX18_ALSA_DEBUG(x, type, fmt, args...) \
|
|
do { \
|
|
if ((x) & cx18_alsa_debug) \
|
|
printk(KERN_INFO "%s-alsa: " type ": " fmt, \
|
|
v4l2_dev->name , ## args); \
|
|
} while (0)
|
|
|
|
#define CX18_ALSA_DEBUG_WARN(fmt, args...) \
|
|
CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
|
|
|
|
#define CX18_ALSA_DEBUG_INFO(fmt, args...) \
|
|
CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_INFO, "info", fmt , ## args)
|
|
|
|
#define CX18_ALSA_ERR(fmt, args...) \
|
|
printk(KERN_ERR "%s-alsa: " fmt, v4l2_dev->name , ## args)
|
|
|
|
#define CX18_ALSA_WARN(fmt, args...) \
|
|
printk(KERN_WARNING "%s-alsa: " fmt, v4l2_dev->name , ## args)
|
|
|
|
#define CX18_ALSA_INFO(fmt, args...) \
|
|
printk(KERN_INFO "%s-alsa: " fmt, v4l2_dev->name , ## args)
|