Bluetooth: Add delayed init sequence support for UART controllers
This patch makes it possible to have UART drivers perform an internal
initialization before calling hci_register_dev. This allows moving a lot
of init code from user space (hciattach) to the kernel side, thereby
creating a more controlled/robust initialization process.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index aaf9d7d..fffa61f 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -47,6 +47,7 @@
#define HCI_UART_RAW_DEVICE 0
#define HCI_UART_RESET_ON_INIT 1
#define HCI_UART_CREATE_AMP 2
+#define HCI_UART_INIT_PENDING 3
struct hci_uart;
@@ -66,6 +67,8 @@
unsigned long flags;
unsigned long hdev_flags;
+ struct work_struct init_ready;
+
struct hci_uart_proto *proto;
void *priv;
@@ -76,6 +79,7 @@
/* HCI_UART proto flag bits */
#define HCI_UART_PROTO_SET 0
+#define HCI_UART_REGISTERED 1
/* TX states */
#define HCI_UART_SENDING 1
@@ -84,6 +88,7 @@
int hci_uart_register_proto(struct hci_uart_proto *p);
int hci_uart_unregister_proto(struct hci_uart_proto *p);
int hci_uart_tx_wakeup(struct hci_uart *hu);
+int hci_uart_init_ready(struct hci_uart *hu);
#ifdef CONFIG_BT_HCIUART_H4
int h4_init(void);