am 273b6107: Merge "whitelist well tested devices for absolute volume feature" into klp-dev (ebfdebf6) · Commits · e / os / android_packages_modules_Bluetooth

system/btif/src/btif_rc.c

+28 −9

Original line number	Diff line number	Diff line
		@@ -162,11 +162,27 @@ static const struct {
		{ NULL, 0, 0, 0 }
		};

		/* the rc_black_addr_prefix and rc_white_addr_prefix are used to correct
		* IOP issues of absolute volume feature
		* We encoutered A2DP headsets/carkits advertising absolute volume but buggy.
		* We would like to blacklist those devices.
		* But we donot have a full list of the bad devices. So as a temp fix, we
		* are blacklisting all the devices except the devices we have well tested,
		* the ones in the whitelist.
		*
		* For now, only the rc_white_addr_prefix is used in the code while
		* rc_black_addr_prefix is kept here for future long term solution.
		*/
		static const UINT8 rc_black_addr_prefix[][3] = {
		{0x0, 0x18, 0x6b}, // HBS-730
		{0x0, 0x18, 0x6B}, // LG HBS-730
		{0x0, 0x26, 0x7E} // VW Passat
		};

		static const UINT8 rc_white_addr_prefix[][3] = {
		{0x94, 0xCE, 0x2C}, // Sony SBH50
		{0x30, 0x17, 0xC8} // Sony wm600
		};

		static void send_reject_response (UINT8 rc_handle, UINT8 label,
		UINT8 pdu, UINT8 status);
		static UINT8 opcode_from_pdu(UINT8 pdu);
		@@ -1636,21 +1652,24 @@ void lbl_destroy()
		** Function dev_blacklisted_for_absolute_volume
		**
		** Description Blacklist Devices that donot handle absolute volume well
		** We are blacklisting all the devices that are not in whitelist
		**
		** Returns True if the device is in the list
		*******************************************************************************/
		static BOOLEAN dev_blacklisted_for_absolute_volume(BD_ADDR peer_dev)
		{
		int i;
		int blacklist_size = sizeof(rc_black_addr_prefix)/sizeof(rc_black_addr_prefix[0]);
		for (i = 0; i < blacklist_size; i++) {
		if (rc_black_addr_prefix[i][0] == peer_dev[0] &&
		rc_black_addr_prefix[i][1] == peer_dev[1] &&
		rc_black_addr_prefix[i][2] == peer_dev[2]) {
		BTIF_TRACE_WARNING3("blacklist absolute volume for %02x:%02x:%02x",
		int whitelist_size = sizeof(rc_white_addr_prefix)/sizeof(rc_white_addr_prefix[0]);
		for (i = 0; i < whitelist_size; i++) {
		if (rc_white_addr_prefix[i][0] == peer_dev[0] &&
		rc_white_addr_prefix[i][1] == peer_dev[1] &&
		rc_white_addr_prefix[i][2] == peer_dev[2]) {
		BTIF_TRACE_DEBUG3("whitelist absolute volume for %02x:%02x:%02x",
		peer_dev[0], peer_dev[1], peer_dev[2]);
		return TRUE;
		return FALSE;
		}
		}
		return FALSE;
		BTIF_TRACE_WARNING3("blacklist absolute volume for %02x:%02x:%02x",
		peer_dev[0], peer_dev[1], peer_dev[2]);
		return TRUE;
		}