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| author | Johan Hedberg <johan.hedberg@intel.com> | 2012-07-16 16:12:14 +0300 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2012-07-17 14:48:33 -0300 |
| commit | 10122d07ced378ec9187f4b3110e110282beb192 (patch) | |
| tree | b7a67094bdd06d7db487528b64373f953b1d095b /drivers/bluetooth/hci_h5.c | |
| parent | 255a68e0124082396d5e6a073ae80f2c41d9c886 (diff) | |
| download | linux-10122d07ced378ec9187f4b3110e110282beb192.tar.gz linux-10122d07ced378ec9187f4b3110e110282beb192.tar.bz2 linux-10122d07ced378ec9187f4b3110e110282beb192.zip | |
Bluetooth: Add initial sleep support to Three-wire UART
This patch adds very basic support for the sleep related messages. The
only thing the code does right now is send a wakeup message as soon as
receiving a sleep one, essentially preventing the controller from going
to sleep.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'drivers/bluetooth/hci_h5.c')
| -rw-r--r-- | drivers/bluetooth/hci_h5.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index eb40b9a38289..d9d42f65ee6e 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -74,6 +74,8 @@ struct h5 { bool tx_ack_req; /* Pending ack to send */ u8 tx_seq; /* Next seq number to send */ u8 tx_ack; /* Next ack number to send */ + + bool sleeping; }; static void h5_reset_rx(struct h5 *h5); @@ -211,6 +213,9 @@ static void h5_handle_internal_rx(struct hci_uart *hu) const unsigned char sync_rsp[] = { 0x02, 0x7d }; const unsigned char conf_req[] = { 0x03, 0xfc, 0x01 }; const unsigned char conf_rsp[] = { 0x04, 0x7b, 0x01 }; + const unsigned char wakeup_req[] = { 0x05, 0xfa }; + const unsigned char woken_req[] = { 0x06, 0xf9 }; + const unsigned char sleep_req[] = { 0x07, 0x78 }; const unsigned char *hdr = h5->rx_skb->data; const unsigned char *data = &h5->rx_skb->data[4]; @@ -233,6 +238,14 @@ static void h5_handle_internal_rx(struct hci_uart *hu) BT_DBG("Three-wire init sequence complete"); hci_uart_init_ready(hu); return; + } else if (memcmp(data, sleep_req, 2) == 0) { + BT_DBG("Peer went to sleep"); + h5->sleeping = true; + h5_link_control(hu, wakeup_req, 2); + } else if (memcmp(data, woken_req, 2) == 0) { + BT_DBG("Peer woke up"); + h5->sleeping = false; + return; } else { BT_DBG("Link Control: 0x%02hhx 0x%02hhx", data[0], data[1]); return; |