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      1 #ifndef __INTEL_SST_IOCTL_H__
      2 #define __INTEL_SST_IOCTL_H__
      3 /*
      4  *  intel_sst_ioctl.h - Intel SST Driver for audio engine
      5  *
      6  *  Copyright (C) 2008-10 Intel Corporation
      7  *  Authors:	Vinod Koul <vinod.koul (at) intel.com>
      8  *		Harsha Priya <priya.harsha (at) intel.com>
      9  *		Dharageswari R <dharageswari.r (at) intel.com>
     10  *		KP Jeeja <jeeja.kp (at) intel.com>
     11  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     12  *
     13  *  This program is free software; you can redistribute it and/or modify
     14  *  it under the terms of the GNU General Public License as published by
     15  *  the Free Software Foundation; version 2 of the License.
     16  *
     17  *  This program is distributed in the hope that it will be useful, but
     18  *  WITHOUT ANY WARRANTY; without even the implied warranty of
     19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     20  *  General Public License for more details.
     21  *
     22  *  You should have received a copy of the GNU General Public License along
     23  *  with this program; if not, write to the Free Software Foundation, Inc.,
     24  *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
     25  *
     26  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     27  *
     28  *  This file defines all sst ioctls
     29  */
     30 
     31 /* codec and post/pre processing related info */
     32 
     33 #include <linux/types.h>
     34 
     35 /* Pre and post processing params structure */
     36 struct snd_ppp_params {
     37 	__u8			algo_id;/* Post/Pre processing algorithm ID  */
     38 	__u8			str_id;	/*Only 5 bits used 0 - 31 are valid*/
     39 	__u8			enable;	/* 0= disable, 1= enable*/
     40 	__u8			operation; /* 0 = set_algo, 1 = get_algo */
     41 	__u32			size;	/*Size of parameters for all blocks*/
     42 	void			*params;
     43 } __packed;
     44 
     45 struct snd_sst_driver_info {
     46 	__u32 max_streams;
     47 };
     48 
     49 struct snd_sst_tuning_params {
     50 	__u8 type;
     51 	__u8 str_id;
     52 	__u8 size;
     53 	__u8 rsvd;
     54 	__u64 addr;
     55 } __packed;
     56 
     57 /*IOCTL defined here */
     58 /*SST common ioctls */
     59 #define SNDRV_SST_DRIVER_INFO	_IOR('L', 0x10, struct snd_sst_driver_info)
     60 #define SNDRV_SST_SET_ALGO	_IOW('L', 0x30,  struct snd_ppp_params)
     61 #define SNDRV_SST_GET_ALGO	_IOWR('L', 0x31,  struct snd_ppp_params)
     62 #define SNDRV_SST_TUNING_PARAMS	_IOW('L', 0x32,  struct snd_sst_tuning_params)
     63 #endif /* __INTEL_SST_IOCTL_H__ */
     64