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Commit a2780889 authored by Harish Bandi's avatar Harish Bandi Committed by Marcel Holtmann
Browse files

Bluetooth: hci_qca: Send VS pre shutdown command. 



WCN399x chips are coex chips, it needs a VS pre shutdown
command while turning off the BT. So that chip can inform
BT is OFF to other active clients.

Signed-off-by: default avatarHarish Bandi <c-hbandi@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 2fde6afb

drivers/bluetooth/btqca.c

+21 −0
Original line number Diff line number Diff line
@@ -99,6 +99,27 @@ static int qca_send_reset(struct hci_dev *hdev) 
	return 0;

}



int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)

{

	struct sk_buff *skb;

	int err;



	bt_dev_dbg(hdev, "QCA pre shutdown cmd");



	skb = __hci_cmd_sync(hdev, QCA_PRE_SHUTDOWN_CMD, 0,

				NULL, HCI_INIT_TIMEOUT);

	if (IS_ERR(skb)) {

		err = PTR_ERR(skb);

		bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);

		return err;

	}



	kfree_skb(skb);



	return 0;

}

EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);



static void qca_tlv_check_data(struct rome_config *config,

				const struct firmware *fw)

{

drivers/bluetooth/btqca.h

+7 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#define EDL_PATCH_TLV_REQ_CMD		(0x1E)

#define EDL_NVM_ACCESS_SET_REQ_CMD	(0x01)

#define MAX_SIZE_PER_TLV_SEGMENT	(243)

#define QCA_PRE_SHUTDOWN_CMD		(0xFC08)



#define EDL_CMD_REQ_RES_EVT		(0x00)

#define EDL_PATCH_VER_RES_EVT		(0x19)
@@ -135,6 +136,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 
		   const char *firmware_name);

int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version);

int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);

int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);

static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)

{

	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3998;
@@ -167,4 +169,9 @@ static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type) 
{

	return false;

}



static inline int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)

{

	return -EOPNOTSUPP;

}

#endif

drivers/bluetooth/hci_qca.c

+3 −0
Original line number Diff line number Diff line
@@ -1386,6 +1386,9 @@ static int qca_power_off(struct hci_dev *hdev) 
{

	struct hci_uart *hu = hci_get_drvdata(hdev);



	/* Perform pre shutdown command */

	qca_send_pre_shutdown_cmd(hdev);



	qca_power_shutdown(hu);

	return 0;

}