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From:   Alain Michaud <alainm@chromium.org>
To:     linux-bluetooth@vger.kernel.org
Cc:     Alain Michaud <alainm@chromium.org>
Subject: [PATCH v1 2/3] bluetooth: Support querying for WBS support through MGMT
Date:   Thu, 27 Feb 2020 18:29:39 +0000
Message-Id: <20200227182938.110670-3-alainm@chromium.org>
In-Reply-To: <20200227182938.110670-1-alainm@chromium.org>
References: <20200227182938.110670-1-alainm@chromium.org>
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Sender: linux-bluetooth-owner@vger.kernel.org
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This patch provides a mechanism for MGMT interface client to query the
capability of the controller to support WBS.

Signed-off-by: Alain Michaud <alainm@chromium.org>
---

 drivers/bluetooth/btusb.c    | 3 +++
 include/net/bluetooth/hci.h  | 9 +++++++++
 include/net/bluetooth/mgmt.h | 1 +
 net/bluetooth/mgmt.c         | 4 ++++
 4 files changed, 17 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 1b175ba3085c..95613f103d17 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3866,6 +3866,9 @@ static int btusb_probe(struct usb_interface *intf,
 	if (id->driver_info & BTUSB_BROKEN_ISOC)
 		data->isoc = NULL;
 
+	if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
+		set_bit(HCI_QUIRK_WIDE_BAND_SPEECH_SUPPORTED, &hdev->quirks);
+
 	if (id->driver_info & BTUSB_DIGIANSWER) {
 		data->cmdreq_type = USB_TYPE_VENDOR;
 		set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 6293bdd7d862..b214c4358d1c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -205,6 +205,15 @@ enum {
 	 *
 	 */
 	HCI_QUIRK_NON_PERSISTENT_SETUP,
+
+	/* When this quirt is set, wide band speech is supported by
+	 * the driver since no reliable mechanism exist to report
+	 * this from the hardware, a driver flag is use to convey
+	 * this support
+	 *
+	 * This quirk must be set before hci_register_dev is called.
+	 */
+	HCI_QUIRK_WIDE_BAND_SPEECH_SUPPORTED,
 };
 
 /* HCI device flags */
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index a90666af05bd..51339584c3a9 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -102,6 +102,7 @@ struct mgmt_rp_read_index_list {
 #define MGMT_SETTING_CONFIGURATION	0x00004000
 #define MGMT_SETTING_STATIC_ADDRESS	0x00008000
 #define MGMT_SETTING_PHY_CONFIGURATION  0x00010000
+#define MGMT_SETTING_WIDE_BAND_SPEECH	0x00020000
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0dc610faab70..a08691d679a8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -762,6 +762,10 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 
 		if (lmp_sc_capable(hdev))
 			settings |= MGMT_SETTING_SECURE_CONN;
+
+		if (test_bit(HCI_QUIRK_WIDE_BAND_SPEECH_SUPPORTED,
+			     &hdev->quirks))
+			settings |= MGMT_SETTING_WIDE_BAND_SPEECH;
 	}
 
 	if (lmp_le_capable(hdev)) {
-- 
2.25.1.481.gfbce0eb801-goog