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Diffstat (limited to 'include/tinycompress/compress_plugin.h')
-rw-r--r-- | include/tinycompress/compress_plugin.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/include/tinycompress/compress_plugin.h b/include/tinycompress/compress_plugin.h new file mode 100644 index 0000000..abd59f2 --- /dev/null +++ b/include/tinycompress/compress_plugin.h @@ -0,0 +1,89 @@ +/* compress_plugin.h +** +** Copyright (c) 2019, The Linux Foundation. All rights reserved. +** +** Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above +** copyright notice, this list of conditions and the following +** disclaimer in the documentation and/or other materials provided +** with the distribution. +** * Neither the name of The Linux Foundation nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED +** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT +** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS +** BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR +** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE +** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +** IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**/ + +#ifndef __COMPRESS_PLUGIN_H__ +#define __COMPRESS_PLUGIN_H__ + +#include "sound/compress_params.h" +#include "sound/compress_offload.h" + +#define COMPRESS_PLUGIN_OPEN_FN(name) \ + int name##_open(struct compress_plugin **plugin, \ + unsigned int card, \ + unsigned int device, \ + unsigned int flags) + +#define COMPRESS_PLUGIN_OPEN_FN_PTR() \ + int (*plugin_open_fn) (struct compress_plugin **plugin, \ + unsigned int card, \ + unsigned int device, \ + unsigned int flags); + +struct compress_plugin; + +struct compress_plugin_ops { + void (*close) (struct compress_plugin *plugin); + int (*get_caps) (struct compress_plugin *plugin, + struct snd_compr_caps *caps); + int (*set_params) (struct compress_plugin *plugin, + struct snd_compr_params *params); + int (*avail) (struct compress_plugin *plugin, + struct snd_compr_avail *avail); + int (*tstamp) (struct compress_plugin *plugin, + struct snd_compr_tstamp *tstamp); + int (*write) (struct compress_plugin *plugin, + const void *buf, size_t size); + int (*read) (struct compress_plugin *plugin, + void *buf, size_t size); + int (*start) (struct compress_plugin *plugin); + int (*stop) (struct compress_plugin *plugin); + int (*pause) (struct compress_plugin *plugin); + int (*resume) (struct compress_plugin *plugin); + int (*drain) (struct compress_plugin *plugin); + int (*partial_drain) (struct compress_plugin *plugin); + int (*next_track) (struct compress_plugin *plugin); + int (*ioctl) (struct compress_plugin *plugin, int cmd, ...); + int (*poll) (struct compress_plugin *plugin, + struct pollfd *fds, nfds_t nfds, int timeout); +}; + +struct compress_plugin { + unsigned int card; + + struct compress_plugin_ops *ops; + + void *node; + int mode; + void *priv; + + unsigned int state; +}; + +#endif /* end of __COMPRESS_PLUGIN_H__ */ |