1a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#ifndef __SOUND_TLV_H 2a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define __SOUND_TLV_H 3a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 4a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* 5a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * Advanced Linux Sound Architecture - ALSA - Driver 6a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * Copyright (c) 2006 by Jaroslav Kysela <perex@perex.cz> 7a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * 8a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * 9a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * This program is free software; you can redistribute it and/or modify 10a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * it under the terms of the GNU General Public License as published by 11a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * the Free Software Foundation; either version 2 of the License, or 12a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * (at your option) any later version. 13a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * 14a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * This program is distributed in the hope that it will be useful, 15a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * but WITHOUT ANY WARRANTY; without even the implied warranty of 16a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * GNU General Public License for more details. 18a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * 19a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * You should have received a copy of the GNU General Public License 20a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * along with this program; if not, write to the Free Software 21a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * 23a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev */ 24a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 25a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* 26a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * TLV structure is right behind the struct snd_ctl_tlv: 27a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * unsigned int type - see SNDRV_CTL_TLVT_* 28a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * unsigned int length 29a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * .... data aligned to sizeof(unsigned int), use 30a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * block_length = (length + (sizeof(unsigned int) - 1)) & 31a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev * ~(sizeof(unsigned int) - 1)) .... 32a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev */ 33a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 34a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_CONTAINER 0 /* one level down - group of TLVs */ 35a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_DB_SCALE 1 /* dB scale */ 36a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_DB_LINEAR 2 /* linear volume */ 37a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_DB_RANGE 3 /* dB range container */ 38a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_DB_MINMAX 4 /* dB scale with min/max */ 39a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */ 40a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 41a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_SCALE_MASK 0xffff 42a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_SCALE_MUTE 0x10000 43a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_SCALE_ITEM(min, step, mute) \ 44a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev SNDRV_CTL_TLVT_DB_SCALE, 2 * sizeof(unsigned int), \ 45a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev (min), ((step) & TLV_DB_SCALE_MASK) | ((mute) ? TLV_DB_SCALE_MUTE : 0) 46a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define DECLARE_TLV_DB_SCALE(name, min, step, mute) \ 47a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev unsigned int name[] = { TLV_DB_SCALE_ITEM(min, step, mute) } 48a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 49a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* dB scale specified with min/max values instead of step */ 50a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_MINMAX_ITEM(min_dB, max_dB) \ 51a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev SNDRV_CTL_TLVT_DB_MINMAX, 2 * sizeof(unsigned int), \ 52a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev (min_dB), (max_dB) 53a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ 54a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev SNDRV_CTL_TLVT_DB_MINMAX_MUTE, 2 * sizeof(unsigned int), \ 55a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev (min_dB), (max_dB) 56a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define DECLARE_TLV_DB_MINMAX(name, min_dB, max_dB) \ 57a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev unsigned int name[] = { TLV_DB_MINMAX_ITEM(min_dB, max_dB) } 58a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define DECLARE_TLV_DB_MINMAX_MUTE(name, min_dB, max_dB) \ 59a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev unsigned int name[] = { TLV_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) } 60a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 61a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* linear volume between min_dB and max_dB (.01dB unit) */ 62a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_LINEAR_ITEM(min_dB, max_dB) \ 63a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev SNDRV_CTL_TLVT_DB_LINEAR, 2 * sizeof(unsigned int), \ 64a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev (min_dB), (max_dB) 65a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define DECLARE_TLV_DB_LINEAR(name, min_dB, max_dB) \ 66a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev unsigned int name[] = { TLV_DB_LINEAR_ITEM(min_dB, max_dB) } 67a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 68a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* dB range container */ 69a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* Each item is: <min> <max> <TLV> */ 70a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev/* The below assumes that each item TLV is 4 words like DB_SCALE or LINEAR */ 71a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_RANGE_HEAD(num) \ 72a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev SNDRV_CTL_TLVT_DB_RANGE, 6 * (num) * sizeof(unsigned int) 73a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 74a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#define TLV_DB_GAIN_MUTE -9999999 75a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev 76a9d4a7d73edd23a042f0c0c9f2148b89e257c573Iliyan Malchev#endif /* __SOUND_TLV_H */ 77