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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9972de9042
Add code so that the PCM ALSA device actually works, and update the cx18-streams mechanism so that it passes the data off to the cx18-alsa module. This work was sponsored by ONELAN Limited. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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* ALSA interface to cx18 PCM capture streams
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*
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* Copyright (C) 2009 Andy Walls <awalls@radix.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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struct snd_card;
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struct snd_cx18_card {
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struct v4l2_device *v4l2_dev;
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struct snd_card *sc;
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unsigned int capture_transfer_done;
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unsigned int hwptr_done_capture;
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struct snd_pcm_substream *capture_pcm_substream;
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spinlock_t slock;
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};
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extern int cx18_alsa_debug;
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#define CX18_ALSA_DBGFLG_WARN (1 << 0)
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#define CX18_ALSA_DBGFLG_WARN (1 << 0)
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#define CX18_ALSA_DBGFLG_INFO (1 << 1)
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#define CX18_ALSA_DEBUG(x, type, fmt, args...) \
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do { \
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if ((x) & cx18_alsa_debug) \
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printk(KERN_INFO "%s-alsa: " type ": " fmt, \
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v4l2_dev->name , ## args); \
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} while (0)
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#define CX18_ALSA_DEBUG_WARN(fmt, args...) \
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CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
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#define CX18_ALSA_DEBUG_INFO(fmt, args...) \
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CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_INFO, "info", fmt , ## args)
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#define CX18_ALSA_ERR(fmt, args...) \
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printk(KERN_ERR "%s-alsa: " fmt, v4l2_dev->name , ## args)
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#define CX18_ALSA_WARN(fmt, args...) \
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printk(KERN_WARNING "%s-alsa: " fmt, v4l2_dev->name , ## args)
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#define CX18_ALSA_INFO(fmt, args...) \
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printk(KERN_INFO "%s-alsa: " fmt, v4l2_dev->name , ## args)
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