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From:   Luiz Augusto von Dentz <luiz.dentz@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Subject: [PATCH v3 05/11] shared: Add definition for LC3 codec
Date:   Fri, 26 Aug 2022 17:05:34 -0700
Message-Id: <20220827000540.113414-6-luiz.dentz@gmail.com>
In-Reply-To: <20220827000540.113414-1-luiz.dentz@gmail.com>
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From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

This adds the definition for LC3 codec capabilities and configuration.
---
 Makefile.am      |   2 +-
 src/shared/lc3.h | 112 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+), 1 deletion(-)
 create mode 100644 src/shared/lc3.h

diff --git a/Makefile.am b/Makefile.am
index 92758ca55816..960bf21bc726 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -231,7 +231,7 @@ shared_sources = src/shared/io.h src/shared/timeout.h \
 			src/shared/gap.h src/shared/gap.c \
 			src/shared/log.h src/shared/log.c \
 			src/shared/bap.h src/shared/bap.c src/shared/ascs.h \
-			src/shared/tty.h
+			src/shared/lc3.h src/shared/tty.h
 
 if READLINE
 shared_sources += src/shared/shell.c src/shared/shell.h
diff --git a/src/shared/lc3.h b/src/shared/lc3.h
new file mode 100644
index 000000000000..33e8107e39e6
--- /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) 2020  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)
-- 
2.37.2