Commit 10122d07 authored by Johan Hedberg's avatar Johan Hedberg Committed by Gustavo Padovan

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: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
parent 255a68e0
......@@ -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;
......
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