Commit f67743f9 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: Add support for reading AOSP vendor capabilities 



When drivers indicate support for AOSP vendor extension, initialize them
and read its capabilities.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 8ce85ada

include/net/bluetooth/hci_core.h

+11 −0
Original line number Diff line number Diff line
@@ -586,6 +586,10 @@ struct hci_dev { 
	void			*msft_data;

#endif



#if IS_ENABLED(CONFIG_BT_AOSPEXT)

	bool			aosp_capable;

#endif



	int (*open)(struct hci_dev *hdev);

	int (*close)(struct hci_dev *hdev);

	int (*flush)(struct hci_dev *hdev);
@@ -1239,6 +1243,13 @@ static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 
#endif

}



static inline void hci_set_aosp_capable(struct hci_dev *hdev)

{

#if IS_ENABLED(CONFIG_BT_AOSPEXT)

	hdev->aosp_capable = true;

#endif

}



int hci_dev_open(__u16 dev);

int hci_dev_close(__u16 dev);

int hci_dev_do_close(struct hci_dev *hdev);

net/bluetooth/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -99,6 +99,13 @@ config BT_MSFTEXT 
	  This options enables support for the Microsoft defined HCI

	  vendor extensions.



config BT_AOSPEXT

	bool "Enable Android Open Source Project extensions"

	depends on BT

	help

	  This options enables support for the Android Open Source

	  Project defined HCI vendor extensions.



config BT_DEBUGFS

	bool "Export Bluetooth internals in debugfs"

	depends on BT && DEBUG_FS

net/bluetooth/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -20,5 +20,6 @@ bluetooth-$(CONFIG_BT_BREDR) += sco.o 
bluetooth-$(CONFIG_BT_HS) += a2mp.o amp.o

bluetooth-$(CONFIG_BT_LEDS) += leds.o

bluetooth-$(CONFIG_BT_MSFTEXT) += msft.o

bluetooth-$(CONFIG_BT_AOSPEXT) += aosp.o

bluetooth-$(CONFIG_BT_DEBUGFS) += hci_debugfs.o

bluetooth-$(CONFIG_BT_SELFTEST) += selftest.o

net/bluetooth/aosp.c

0 → 100644
+35 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (C) 2021 Intel Corporation

 */



#include <net/bluetooth/bluetooth.h>

#include <net/bluetooth/hci_core.h>



#include "aosp.h"



void aosp_do_open(struct hci_dev *hdev)

{

	struct sk_buff *skb;



	if (!hdev->aosp_capable)

		return;



	bt_dev_dbg(hdev, "Initialize AOSP extension");



	/* LE Get Vendor Capabilities Command */

	skb = __hci_cmd_sync(hdev, hci_opcode_pack(0x3f, 0x153), 0, NULL,

			     HCI_CMD_TIMEOUT);

	if (IS_ERR(skb))

		return;



	kfree_skb(skb);

}



void aosp_do_close(struct hci_dev *hdev)

{

	if (!hdev->aosp_capable)

		return;



	bt_dev_dbg(hdev, "Cleanup of AOSP extension");

}

net/bluetooth/aosp.h

0 → 100644
+16 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (C) 2021 Intel Corporation

 */



#if IS_ENABLED(CONFIG_BT_AOSPEXT)



void aosp_do_open(struct hci_dev *hdev);

void aosp_do_close(struct hci_dev *hdev);



#else



static inline void aosp_do_open(struct hci_dev *hdev) {}

static inline void aosp_do_close(struct hci_dev *hdev) {}



#endif