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From:   Kiran K <kiran.k@intel.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     Kiran K <kiran.k@intel.com>
Subject: [PATCH v10 09/10] Bluetooth: Add support for msbc coding format
Date:   Wed, 30 Jun 2021 13:38:06 +0530
Message-Id: <20210630080807.12600-9-kiran.k@intel.com>
In-Reply-To: <20210630080807.12600-1-kiran.k@intel.com>
References: <20210630080807.12600-1-kiran.k@intel.com>
Precedence: bulk

In Enhanced_Setup_Synchronous_Command, add support for msbc
coding format

Signed-off-by: Kiran K <kiran.k@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
---
* changes on v10:
  - Fix typos and unwanted chunks

 include/net/bluetooth/bluetooth.h |  1 +
 net/bluetooth/hci_conn.c          | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index af2809121571..056699224da7 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -175,6 +175,7 @@ struct bt_codecs {
 
 #define CODING_FORMAT_CVSD		0x02
 #define CODING_FORMAT_TRANSPARENT	0x03
+#define CODING_FORMAT_MSBC		0x05
 
 __printf(1, 2)
 void bt_info(const char *fmt, ...);
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index d4a08b344ad0..ba7ae59d155b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -328,6 +328,33 @@ bool hci_enhanced_setup_sync(struct hci_conn *conn, __u16 handle)
 	cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
 
 	switch (conn->codec.id) {
+#if IS_ENABLED(CONFIG_BT_OFFLOAD_CODECS)
+	case CODING_FORMAT_MSBC:
+		if (!find_next_esco_param(conn, esco_param_msbc,
+					  ARRAY_SIZE(esco_param_msbc)))
+			return false;
+
+		param = &esco_param_msbc[conn->attempt - 1];
+		cp.tx_coding_format.id = 0x05;
+		cp.rx_coding_format.id = 0x05;
+		cp.tx_codec_frame_size = __cpu_to_le16(60);
+		cp.rx_codec_frame_size = __cpu_to_le16(60);
+		cp.in_bandwidth = __cpu_to_le32(32000);
+		cp.out_bandwidth = __cpu_to_le32(32000);
+		cp.in_coding_format.id = 0x04;
+		cp.out_coding_format.id = 0x04;
+		cp.in_coded_data_size = __cpu_to_le16(16);
+		cp.out_coded_data_size = __cpu_to_le16(16);
+		cp.in_pcm_data_format = 2;
+		cp.out_pcm_data_format = 2;
+		cp.in_pcm_sample_payload_msb_pos = 0;
+		cp.out_pcm_sample_payload_msb_pos = 0;
+		cp.in_data_path = conn->codec.data_path;
+		cp.out_data_path = conn->codec.data_path;
+		cp.in_transport_unit_size = 1;
+		cp.out_transport_unit_size = 1;
+		break;
+#endif
 	case CODING_FORMAT_TRANSPARENT:
 		if (!find_next_esco_param(conn, esco_param_msbc,
 					  ARRAY_SIZE(esco_param_msbc)))
-- 
2.17.1