Commit ccd6da2a authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg

Bluetooth: btusb: Use proper data structures for Intel vendor events

The Intel vendors events indicating firmware loading result and the
bootup of the operational firmware are currently hardcoded byte
comparisons. So intead of doing that, provide proper data structures
and actually use them.
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 94910d41
......@@ -54,6 +54,21 @@ struct intel_boot_params {
__u8 unlocked_state;
} __packed;
struct intel_bootup {
__u8 zero;
__u8 num_cmds;
__u8 source;
__u8 reset_type;
__u8 reset_reason;
__u8 ddc_status;
} __packed;
struct intel_secure_send_result {
__u8 result;
__le16 opcode;
__u8 status;
} __packed;
#if IS_ENABLED(CONFIG_BT_INTEL)
int btintel_check_bdaddr(struct hci_dev *hdev);
......
......@@ -1746,6 +1746,38 @@ static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
return btusb_recv_bulk(data, buffer, count);
}
static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
unsigned int len)
{
const struct intel_bootup *evt = ptr;
if (len != sizeof(*evt))
return;
if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
smp_mb__after_atomic();
wake_up_bit(&data->flags, BTUSB_BOOTING);
}
}
static void btusb_intel_secure_send_result(struct btusb_data *data,
const void *ptr, unsigned int len)
{
const struct intel_secure_send_result *evt = ptr;
if (len != sizeof(*evt))
return;
if (evt->result)
set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
smp_mb__after_atomic();
wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
}
}
static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
{
struct btusb_data *data = hci_get_drvdata(hdev);
......@@ -1753,32 +1785,27 @@ static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
struct hci_event_hdr *hdr = (void *)skb->data;
/* When the firmware loading completes the device sends
* out a vendor specific event indicating the result of
* the firmware loading.
*/
if (skb->len == 7 && hdr->evt == 0xff && hdr->plen == 0x05 &&
skb->data[2] == 0x06) {
if (skb->data[3] != 0x00)
test_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
if (test_and_clear_bit(BTUSB_DOWNLOADING,
&data->flags) &&
test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
smp_mb__after_atomic();
wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
}
}
/* When switching to the operational firmware the device
* sends a vendor specific event indicating that the bootup
* completed.
*/
if (skb->len == 9 && hdr->evt == 0xff && hdr->plen == 0x07 &&
skb->data[2] == 0x02) {
if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
smp_mb__after_atomic();
wake_up_bit(&data->flags, BTUSB_BOOTING);
if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
hdr->plen > 0) {
const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
switch (skb->data[2]) {
case 0x02:
/* When switching to the operational firmware
* the device sends a vendor specific event
* indicating that the bootup completed.
*/
btusb_intel_bootup(data, ptr, len);
break;
case 0x06:
/* When the firmware loading completes the
* device sends out a vendor specific event
* indicating the result of the firmware
* loading.
*/
btusb_intel_secure_send_result(data, ptr, len);
break;
}
}
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment