1 /* 2 * Copyright (c) 2019-2025 Allwinner Technology Co., Ltd. ALL rights reserved. 3 * 4 * Allwinner is a trademark of Allwinner Technology Co.,Ltd., registered in 5 * the the people's Republic of China and other countries. 6 * All Allwinner Technology Co.,Ltd. trademarks are used with permission. 7 * 8 * DISCLAIMER 9 * THIRD PARTY LICENCES MAY BE REQUIRED TO IMPLEMENT THE SOLUTION/PRODUCT. 10 * IF YOU NEED TO INTEGRATE THIRD PARTY’S TECHNOLOGY (SONY, DTS, DOLBY, AVS OR MPEGLA, ETC.) 11 * IN ALLWINNERS’SDK OR PRODUCTS, YOU SHALL BE SOLELY RESPONSIBLE TO OBTAIN 12 * ALL APPROPRIATELY REQUIRED THIRD PARTY LICENCES. 13 * ALLWINNER SHALL HAVE NO WARRANTY, INDEMNITY OR OTHER OBLIGATIONS WITH RESPECT TO MATTERS 14 * COVERED UNDER ANY REQUIRED THIRD PARTY LICENSE. 15 * YOU ARE SOLELY RESPONSIBLE FOR YOUR USAGE OF THIRD PARTY’S TECHNOLOGY. 16 * 17 * 18 * THIS SOFTWARE IS PROVIDED BY ALLWINNER"AS IS" AND TO THE MAXIMUM EXTENT 19 * PERMITTED BY LAW, ALLWINNER EXPRESSLY DISCLAIMS ALL WARRANTIES OF ANY KIND, 20 * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING WITHOUT LIMITATION REGARDING 21 * THE TITLE, NON-INFRINGEMENT, ACCURACY, CONDITION, COMPLETENESS, PERFORMANCE 22 * OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 23 * IN NO EVENT SHALL ALLWINNER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS, OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 30 * OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 #ifndef __AW_ALSA_CONTROL_H 33 #define __AW_ALSA_CONTROL_H 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <sound/ksound.h> 39 40 typedef int snd_ctl_elem_type_t; 41 #define SND_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t)0) 42 #define SND_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t)1) 43 #define SND_CTL_ELEM_TYPE_LAST SND_CTL_ELEM_TYPE_ENUMERATED 44 45 /* can't modify this struct */ 46 typedef struct { 47 unsigned int id; 48 snd_ctl_elem_type_t type; 49 const unsigned char *name; 50 unsigned long value; 51 int min,max; 52 int count; 53 /* for enum */ 54 unsigned int items; 55 const char * const *texts; 56 57 const unsigned long *private_data; 58 } snd_ctl_info_t; 59 60 int snd_ctl_num(const char *name); 61 int snd_ctl_get(const char *name, const char *elem, snd_ctl_info_t *info); 62 int snd_ctl_get_bynum(const char *name, const unsigned int elem_num, snd_ctl_info_t *info); 63 int snd_ctl_set(const char *name, const char *elem, unsigned int val); 64 int snd_ctl_set_bynum(const char *name, const unsigned int elem_num, unsigned int val); 65 int snd_ctl_add(const char *name, snd_ctl_info_t *info); 66 int snd_ctl_remove(const char *name, const unsigned int elem_num); 67 #define snd_ctl_set_multi_args ksnd_ctl_set_multi_args 68 69 #ifdef __cplusplus 70 } 71 #endif 72 73 #endif /* __AW_ALSA_CONTROL_H */ 74