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Bluetooth: hci_qca: Send VS pre shutdown command.

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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: Harish Bandi <c-hbandi@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Harish Bandi 2019-07-12 10:39:40 +05:30 committed by Marcel Holtmann
parent 2fde6afb8c
commit a2780889e2
3 changed files with 31 additions and 0 deletions
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21
drivers/bluetooth/btqca.c
View File

@ -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)
{

7
drivers/bluetooth/btqca.h
View File

@ -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

3
drivers/bluetooth/hci_qca.c
View File

@ -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;
}