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Bluetooth: Add mgmt suspend and resume events 

Add the controller suspend and resume events, which will signal when
Bluetooth has completed preparing for suspend and when it's ready for
resume.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Abhishek Pandit-Subedi 2020-09-11 14:07:11 -07:00 committed by Marcel Holtmann
parent 6baf8a6afc
commit 346ce5b7d6
3 changed files with 40 additions and 0 deletions
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3
include/net/bluetooth/hci_core.h
View File

@ -1750,6 +1750,9 @@ void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
u8 addr_type, s8 rssi, u8 *name, u8 name_len);
void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
void mgmt_suspending(struct hci_dev *hdev, u8 state);
void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
u8 addr_type);
bool mgmt_powering_down(struct hci_dev *hdev);
void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);

11
include/net/bluetooth/mgmt.h
View File

@ -1030,3 +1030,14 @@ struct mgmt_ev_adv_monitor_added {
struct mgmt_ev_adv_monitor_removed {
__le16 monitor_handle;
} __packed;
#define MGMT_EV_CONTROLLER_SUSPEND 0x002d
struct mgmt_ev_controller_suspend {
__u8 suspend_state;
} __packed;
#define MGMT_EV_CONTROLLER_RESUME 0x002e
struct mgmt_ev_controller_resume {
__u8 wake_reason;
struct mgmt_addr_info addr;
} __packed;

26
net/bluetooth/mgmt.c
View File

@ -163,6 +163,8 @@ static const u16 mgmt_events[] = {
MGMT_EV_PHY_CONFIGURATION_CHANGED,
MGMT_EV_EXP_FEATURE_CHANGED,
MGMT_EV_DEVICE_FLAGS_CHANGED,
MGMT_EV_CONTROLLER_SUSPEND,
MGMT_EV_CONTROLLER_RESUME,
};
static const u16 mgmt_untrusted_commands[] = {
@ -8874,6 +8876,30 @@ void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
}
void mgmt_suspending(struct hci_dev *hdev, u8 state)
{
struct mgmt_ev_controller_suspend ev;
ev.suspend_state = state;
mgmt_event(MGMT_EV_CONTROLLER_SUSPEND, hdev, &ev, sizeof(ev), NULL);
}
void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
u8 addr_type)
{
struct mgmt_ev_controller_resume ev;
ev.wake_reason = reason;
if (bdaddr) {
bacpy(&ev.addr.bdaddr, bdaddr);
ev.addr.type = addr_type;
} else {
memset(&ev.addr, 0, sizeof(ev.addr));
}
mgmt_event(MGMT_EV_CONTROLLER_RESUME, hdev, &ev, sizeof(ev), NULL);
}
static struct hci_mgmt_chan chan = {
.channel = HCI_CHANNEL_CONTROL,
.handler_count = ARRAY_SIZE(mgmt_handlers),