From 590deccf4c0690597ca69349fe46ee124944d8c5 Mon Sep 17 00:00:00 2001
From: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Date: Fri, 12 Jun 2020 17:50:28 +0530
Subject: [PATCH] Bluetooth: hci_qca: Disable SoC debug logging for WCN3991
Git-commit: 590deccf4c0690597ca69349fe46ee124944d8c5
Patch-mainline: v5.9-rc1
References: jsc#SLE-13430
By default, WCN3991 sent debug packets to HOST via ACL packet
with header 0xDC2E. This logging is not required on commercial
devices. With this patch SoC logging is disabled post fw
download.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/bluetooth/btqca.c | 27 +++++++++++++++++++++++++++
drivers/bluetooth/btqca.h | 2 ++
2 files changed, 29 insertions(+)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index c5984966f315..ce9dcffdc5bf 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -400,6 +400,27 @@ static int qca_download_firmware(struct hci_dev *hdev,
return ret;
}
+static int qca_disable_soc_logging(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ u8 cmd[2];
+ int err;
+
+ cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
+ cmd[1] = 0x00;
+ skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
+ HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
+ return err;
+ }
+
+ kfree_skb(skb);
+
+ return 0;
+}
+
int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
struct sk_buff *skb;
@@ -486,6 +507,12 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
return err;
}
+ if (soc_type >= QCA_WCN3991) {
+ err = qca_disable_soc_logging(hdev);
+ if (err < 0)
+ return err;
+ }
+
/* Perform HCI reset */
err = qca_send_reset(hdev);
if (err < 0) {
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index 6e1e62dd4b95..d81b74c408a5 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -14,6 +14,7 @@
#define EDL_NVM_ACCESS_SET_REQ_CMD (0x01)
#define MAX_SIZE_PER_TLV_SEGMENT (243)
#define QCA_PRE_SHUTDOWN_CMD (0xFC08)
+#define QCA_DISABLE_LOGGING (0xFC17)
#define EDL_CMD_REQ_RES_EVT (0x00)
#define EDL_PATCH_VER_RES_EVT (0x19)
@@ -22,6 +23,7 @@
#define EDL_CMD_EXE_STATUS_EVT (0x00)
#define EDL_SET_BAUDRATE_RSP_EVT (0x92)
#define EDL_NVM_ACCESS_CODE_EVT (0x0B)
+#define QCA_DISABLE_LOGGING_SUB_OP (0x14)
#define EDL_TAG_ID_HCI (17)
#define EDL_TAG_ID_DEEP_SLEEP (27)
--
2.16.4