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Wed, 19 Dec 2018 08:52:00 -0800 (PST) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: linux-bluetooth@vger.kernel.org Subject: [PATCH 09/10] a2dp-codecs: Add macros and structures for FastStream, aptX Low Latency and aptX HD codecs Date: Wed, 19 Dec 2018 17:51:08 +0100 Message-Id: <20181219165109.29088-10-pali.rohar@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20181219165109.29088-1-pali.rohar@gmail.com> References: <20181219165109.29088-1-pali.rohar@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org --- profiles/audio/a2dp-codecs.h | 120 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) diff --git a/profiles/audio/a2dp-codecs.h b/profiles/audio/a2dp-codecs.h index 9f47755cb..d4a393668 100644 --- a/profiles/audio/a2dp-codecs.h +++ b/profiles/audio/a2dp-codecs.h @@ -4,6 +4,7 @@ * * Copyright (C) 2006-2010 Nokia Corporation * Copyright (C) 2004-2010 Marcel Holtmann + * Copyright (C) 2018 Pali Rohár * * * This library is free software; you can redistribute it and/or @@ -193,6 +194,59 @@ #define APTX_SAMPLING_FREQ_44100 0x02 #define APTX_SAMPLING_FREQ_48000 0x01 +#define FASTSTREAM_VENDOR_ID 0x0000000a +#define FASTSTREAM_CODEC_ID 0x0001 + +#define FASTSTREAM_DIRECTION_SINK 0x1 +#define FASTSTREAM_DIRECTION_SOURCE 0x2 + +#define FASTSTREAM_SINK_SAMPLING_FREQ_44100 0x2 +#define FASTSTREAM_SINK_SAMPLING_FREQ_48000 0x1 + +#define FASTSTREAM_SOURCE_SAMPLING_FREQ_16000 0x2 + +#define APTX_LL_VENDOR_ID 0x0000000a +#define APTX_LL_CODEC_ID 0x0002 + +#define APTX_LL_CHANNEL_MODE_MONO 0x01 +#define APTX_LL_CHANNEL_MODE_STEREO 0x02 + +#define APTX_LL_SAMPLING_FREQ_16000 0x08 +#define APTX_LL_SAMPLING_FREQ_32000 0x04 +#define APTX_LL_SAMPLING_FREQ_44100 0x02 +#define APTX_LL_SAMPLING_FREQ_48000 0x01 + +/* Default parameters for aptX Low Latency encoder */ + +/* Target codec buffer level = 180 */ +#define APTX_LL_TARGET_LEVEL2 0xb4 +#define APTX_LL_TARGET_LEVEL1 0x00 + +/* Initial codec buffer level = 360 */ +#define APTX_LL_INITIAL_LEVEL2 0x68 +#define APTX_LL_INITIAL_LEVEL1 0x01 + +/* SRA max rate 0.005 * 10000 = 50 */ +#define APTX_LL_SRA_MAX_RATE 0x32 + +/* SRA averaging time = 1s */ +#define APTX_LL_SRA_AVG_TIME 0x01 + +/* Good working codec buffer level = 180 */ +#define APTX_LL_GOOD_WORKING_LEVEL2 0xB4 +#define APTX_LL_GOOD_WORKING_LEVEL1 0x00 + +#define APTX_HD_VENDOR_ID 0x000000D7 +#define APTX_HD_CODEC_ID 0x0024 + +#define APTX_HD_CHANNEL_MODE_MONO 0x1 +#define APTX_HD_CHANNEL_MODE_STEREO 0x2 + +#define APTX_HD_SAMPLING_FREQ_16000 0x8 +#define APTX_HD_SAMPLING_FREQ_32000 0x4 +#define APTX_HD_SAMPLING_FREQ_44100 0x2 +#define APTX_HD_SAMPLING_FREQ_48000 0x1 + #define LDAC_VENDOR_ID 0x0000012d #define LDAC_CODEC_ID 0x00aa @@ -228,6 +282,18 @@ typedef struct { }) typedef struct { + uint8_t reserved; + uint8_t target_level2; + uint8_t target_level1; + uint8_t initial_level2; + uint8_t initial_level1; + uint8_t sra_max_rate; + uint8_t sra_avg_time; + uint8_t good_working_level2; + uint8_t good_working_level1; +} __attribute__ ((packed)) a2dp_aptx_ll_new_caps_t; + +typedef struct { a2dp_vendor_codec_t info; uint8_t frequency; uint8_t channel_mode; @@ -275,6 +341,33 @@ typedef struct { uint8_t frequency:4; } __attribute__ ((packed)) a2dp_aptx_t; +typedef struct { + a2dp_vendor_codec_t info; + uint8_t direction; + uint8_t sink_frequency:4; + uint8_t source_frequency:4; +} __attribute__ ((packed)) a2dp_faststream_t; + +typedef struct { + a2dp_vendor_codec_t info; + uint8_t channel_mode:4; + uint8_t frequency:4; + uint8_t bidirect_link:1; + uint8_t has_new_caps:1; + uint8_t reserved:6; + a2dp_aptx_ll_new_caps_t new_caps[0]; +} __attribute__ ((packed)) a2dp_aptx_ll_t; + +typedef struct { + a2dp_vendor_codec_t info; + uint8_t channel_mode:4; + uint8_t frequency:4; + uint8_t reserved0; + uint8_t reserved1; + uint8_t reserved2; + uint8_t reserved3; +} __attribute__ ((packed)) a2dp_aptx_hd_t; + #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN typedef struct { @@ -317,6 +410,33 @@ typedef struct { uint8_t channel_mode:4; } __attribute__ ((packed)) a2dp_aptx_t; +typedef struct { + a2dp_vendor_codec_t info; + uint8_t direction; + uint8_t source_frequency:4; + uint8_t sink_frequency:4; +} __attribute__ ((packed)) a2dp_faststream_t; + +typedef struct { + a2dp_vendor_codec_t info; + uint8_t frequency:4; + uint8_t channel_mode:4; + uint8_t reserved:6; + uint8_t has_new_caps:1; + uint8_t bidirect_link:1; + a2dp_aptx_ll_new_caps_t new_caps[0]; +} __attribute__ ((packed)) a2dp_aptx_ll_t; + +typedef struct { + a2dp_vendor_codec_t info; + uint8_t frequency:4; + uint8_t channel_mode:4; + uint8_t reserved0; + uint8_t reserved1; + uint8_t reserved2; + uint8_t reserved3; +} __attribute__ ((packed)) a2dp_aptx_hd_t; + #else #error "Unknown byte order" #endif -- 2.11.0