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Bluetooth: Perform a power cycle when receiving hardware error event

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When receiving a HCI Hardware Error event, the controller should be
assumed to be non-functional until issuing a HCI Reset command.

The Bluetooth hardware errors are vendor specific and so add a
new hdev->hw_error callback that drivers can provide to run extra
code to handle the hardware error.

After completing the vendor specific error handling perform a full
reset of the Bluetooth stack by closing and re-opening the transport.

Based-on-patch-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann
2015-01-28 11:09:55 -08:00
parent 5c912495b7
commit c7741d16a5
3 changed files with 27 additions and 1 deletions
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3
include/net/bluetooth/hci_core.h
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@@ -232,6 +232,7 @@ struct hci_dev {
__u16 conn_info_min_age;
__u16 conn_info_max_age;
__u8 ssp_debug_mode;
__u8 hw_error_code;
__u32 clock;
__u16 devid_source;
@@ -293,6 +294,7 @@ struct hci_dev {
struct work_struct power_on;
struct delayed_work power_off;
struct work_struct error_reset;
__u16 discov_timeout;
struct delayed_work discov_off;
@@ -369,6 +371,7 @@ struct hci_dev {
int (*setup)(struct hci_dev *hdev);
int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
void (*notify)(struct hci_dev *hdev, unsigned int evt);
void (*hw_error)(struct hci_dev *hdev, u8 code);
int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
};