1 /** 2 * \file include/pcm_external.h 3 * \brief External PCM plugin SDK 4 * \author Takashi Iwai <tiwai (at) suse.de> 5 * \date 2005 6 * 7 * Extern PCM plugin SDK. 8 */ 9 10 /* 11 * This library is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License as 13 * published by the Free Software Foundation; either version 2.1 of 14 * the License, or (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU Lesser General Public License for more details. 20 * 21 * You should have received a copy of the GNU Lesser General Public 22 * License along with this library; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 24 * 25 */ 26 #ifndef __ALSA_PCM_EXTERNAL_H 27 #define __ALSA_PCM_EXTERNAL_H 28 29 #include "pcm.h" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /** 36 * \defgroup Plugin_SDK External PCM plugin SDK 37 * \{ 38 */ 39 40 /** 41 * Define the object entry for external PCM plugins 42 */ 43 #define SND_PCM_PLUGIN_ENTRY(name) _snd_pcm_##name##_open 44 45 /** 46 * Define the symbols of the given plugin with versions 47 */ 48 #define SND_PCM_PLUGIN_SYMBOL(name) SND_DLSYM_BUILD_VERSION(SND_PCM_PLUGIN_ENTRY(name), SND_PCM_DLSYM_VERSION); 49 50 /** 51 * Define the plugin 52 */ 53 #define SND_PCM_PLUGIN_DEFINE_FUNC(plugin) \ 54 int SND_PCM_PLUGIN_ENTRY(plugin) (snd_pcm_t **pcmp, const char *name,\ 55 snd_config_t *root, snd_config_t *conf, \ 56 snd_pcm_stream_t stream, int mode) 57 58 #include "pcm_ioplug.h" 59 #include "pcm_extplug.h" 60 61 int snd_pcm_parse_control_id(snd_config_t *conf, snd_ctl_elem_id_t *ctl_id, int *cardp, 62 int *cchannelsp, int *hwctlp); 63 64 /** \} */ 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 #endif /* __ALSA_PCM_EXTERNAL_H */ 71
