Commit c614ca3f authored by Balakrishna Godavarthi's avatar Balakrishna Godavarthi Committed by Marcel Holtmann
Browse files

Bluetooth: hci_qca: Add support for controller debug logs. 



This patch will prevent error messages splashing on console.

[   78.426697] Bluetooth: hci_core.c:hci_acldata_packet() hci0: ACL packet for unknown connection handle 3804
[   78.436682] Bluetooth: hci_core.c:hci_acldata_packet() hci0: ACL packet for unknown connection handle 3804
[   78.446639] Bluetooth: hci_core.c:hci_acldata_packet() hci0: ACL packet for unknown connection handle 3804
[   78.456596] Bluetooth: hci_core.c:hci_acldata_packet() hci0: ACL packet for unknown connection handle 3804

QCA wcn3990 will send the debug logs in the form of ACL packets.
While decoding packet in qca_recv(), marking the received debug log
packet as diagnostic packet.

Signed-off-by: default avatarHarish Bandi <c-hbandi@codeaurora.org>
Signed-off-by: default avatarBalakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1411a260

drivers/bluetooth/hci_qca.c

+18 −1
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ 
#include <linux/platform_device.h>

#include <linux/regulator/consumer.h>

#include <linux/serdev.h>

#include <asm/unaligned.h>



#include <net/bluetooth/bluetooth.h>

#include <net/bluetooth/hci_core.h>
@@ -63,6 +64,9 @@ 
/* susclk rate */

#define SUSCLK_RATE_32KHZ	32768



/* Controller debug log header */

#define QCA_DEBUG_HANDLE	0x2EDC



/* HCI_IBS transmit side sleep protocol states */

enum tx_ibs_states {

	HCI_IBS_TX_ASLEEP,
@@ -849,6 +853,19 @@ static int qca_ibs_wake_ack(struct hci_dev *hdev, struct sk_buff *skb) 
	return 0;

}



static int qca_recv_acl_data(struct hci_dev *hdev, struct sk_buff *skb)

{

	/* We receive debug logs from chip as an ACL packets.

	 * Instead of sending the data to ACL to decode the

	 * received data, we are pushing them to the above layers

	 * as a diagnostic packet.

	 */

	if (get_unaligned_le16(skb->data) == QCA_DEBUG_HANDLE)

		return hci_recv_diag(hdev, skb);



	return hci_recv_frame(hdev, skb);

}



#define QCA_IBS_SLEEP_IND_EVENT \

	.type = HCI_IBS_SLEEP_IND, \

	.hlen = 0, \
@@ -871,7 +888,7 @@ static int qca_ibs_wake_ack(struct hci_dev *hdev, struct sk_buff *skb) 
	.maxlen = HCI_MAX_IBS_SIZE



static const struct h4_recv_pkt qca_recv_pkts[] = {

	{ H4_RECV_ACL,             .recv = hci_recv_frame    },

	{ H4_RECV_ACL,             .recv = qca_recv_acl_data },

	{ H4_RECV_SCO,             .recv = hci_recv_frame    },

	{ H4_RECV_EVENT,           .recv = hci_recv_frame    },

	{ QCA_IBS_WAKE_IND_EVENT,  .recv = qca_ibs_wake_ind  },

CRA Git | Maintained and supported by SUSTech CRA and CCSE