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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2022-06-24 16:30:43 -0700 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2022-08-29 12:43:04 -0700 |
| commit | fcc16be9053affea6ea02b3b038422905bd321cb (patch) | |
| tree | 9f98814eb0a2bc6431bf0c12fc198bfe36f1078e /src | |
| parent | 47ba235f5a6ff9173727311adefab45609fc2ad8 (diff) | |
| download | bluez-fcc16be9053affea6ea02b3b038422905bd321cb.tar.gz | |
shared: Add definition for LC3 codec
This adds the definition for LC3 codec capabilities and configuration.
Diffstat (limited to 'src')
| -rw-r--r-- | src/shared/lc3.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/shared/lc3.h b/src/shared/lc3.h new file mode 100644 index 000000000..fd9eb15a7 --- /dev/null +++ b/src/shared/lc3.h @@ -0,0 +1,112 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2022 Intel Corporation. All rights reserved. + * + */ + +#define LTV(_type, _bytes...) \ + { \ + .len = 1 + sizeof((uint8_t []) { _bytes }), \ + .type = _type, \ + .data = { _bytes }, \ + } + +#define LC3_ID 0x06 + +#define LC3_BASE 0x01 + +#define LC3_FREQ (LC3_BASE) +#define LC3_FREQ_8KHZ BIT(0) +#define LC3_FREQ_11KHZ BIT(1) +#define LC3_FREQ_16KHZ BIT(2) +#define LC3_FREQ_22KHZ BIT(3) +#define LC3_FREQ_24KHZ BIT(4) +#define LC3_FREQ_32KHZ BIT(5) +#define LC3_FREQ_44KHZ BIT(6) +#define LC3_FREQ_48KHZ BIT(7) +#define LC3_FREQ_ANY (LC3_FREQ_8KHZ | \ + LC3_FREQ_11KHZ | \ + LC3_FREQ_16KHZ | \ + LC3_FREQ_22KHZ | \ + LC3_FREQ_24KHZ | \ + LC3_FREQ_32KHZ | \ + LC3_FREQ_44KHZ | \ + LC3_FREQ_48KHZ) + +#define LC3_DURATION (LC3_BASE + 1) +#define LC3_DURATION_7_5 BIT(0) +#define LC3_DURATION_10 BIT(1) +#define LC3_DURATION_ANY (LC3_DURATION_7_5 | LC3_DURATION_10) +#define LC3_DURATION_PREFER_7_5 BIT(4) +#define LC3_DURATION_PREFER_10 BIT(5) + + +#define LC3_CHAN_COUNT (LC3_BASE + 2) +#define LC3_CHAN_COUNT_SUPPORT BIT(0) + +#define LC3_FRAME_LEN (LC3_BASE + 3) + +#define LC3_FRAME_COUNT (LC3_BASE + 4) + +#define LC3_CAPABILITIES(_freq, _duration, _chan_count, _len_min, _len_max) \ + { \ + LTV(LC3_FREQ, _freq), \ + LTV(LC3_DURATION, _duration), \ + LTV(LC3_CHAN_COUNT, _chan_count), \ + LTV(LC3_FRAME_LEN, _len_min, _len_min >> 8, \ + _len_max, _len_max >> 8), \ + } + +#define LC3_CONFIG_BASE 0x01 + +#define LC3_CONFIG_FREQ (LC3_CONFIG_BASE) +#define LC3_CONFIG_FREQ_8KHZ 0x01 +#define LC3_CONFIG_FREQ_11KHZ 0x02 +#define LC3_CONFIG_FREQ_16KHZ 0x03 +#define LC3_CONFIG_FREQ_22KHZ 0x04 +#define LC3_CONFIG_FREQ_24KHZ 0x05 +#define LC3_CONFIG_FREQ_32KHZ 0x06 +#define LC3_CONFIG_FREQ_44KHZ 0x07 +#define LC3_CONFIG_FREQ_48KHZ 0x08 + +#define LC3_CONFIG_DURATION (LC3_CONFIG_BASE + 1) +#define LC3_CONFIG_DURATION_7_5 0x00 +#define LC3_CONFIG_DURATION_10 0x01 + +#define LC3_CONFIG_CHAN_ALLOC (LC3_CONFIG_BASE + 2) + +#define LC3_CONFIG_FRAME_LEN (LC3_CONFIG_BASE + 3) + +#define LC3_CONFIG(_freq, _duration, _len) \ + { \ + LTV(LC3_CONFIG_FREQ, _freq), \ + LTV(LC3_CONFIG_DURATION, _duration), \ + LTV(LC3_CONFIG_FRAME_LEN, _len, _len >> 8), \ + } + +#define LC3_CONFIG_8KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_8KHZ, _duration, _len) + +#define LC3_CONFIG_11KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_11KHZ, _duration, _len) + +#define LC3_CONFIG_16KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_16KHZ, _duration, _len) + +#define LC3_CONFIG_22KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_22KHZ, _duration, _len) + +#define LC3_CONFIG_24KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_24KHZ, _duration, _len) + +#define LC3_CONFIG_32KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_32KHZ, _duration, _len) + +#define LC3_CONFIG_44KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_44KHZ, _duration, _len) + +#define LC3_CONFIG_48KHZ(_duration, _len) \ + LC3_CONFIG(LC3_CONFIG_FREQ_48KHZ, _duration, _len) |