diff options
| -rw-r--r-- | drivers/bluetooth/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/bluetooth/Makefile | 1 | ||||
| -rw-r--r-- | drivers/bluetooth/hci_h5.c | 88 | ||||
| -rw-r--r-- | drivers/bluetooth/hci_ldisc.c | 6 | ||||
| -rw-r--r-- | drivers/bluetooth/hci_uart.h | 5 |
5 files changed, 112 insertions, 0 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index 5ccf142ef0b..e9f203eadb1 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -81,6 +81,18 @@ config BT_HCIUART_LL Say Y here to compile support for HCILL protocol. +config BT_HCIUART_3WIRE + bool "Three-wire UART (H5) protocol support" + depends on BT_HCIUART + help + The HCI Three-wire UART Transport Layer makes it possible to + user the Bluetooth HCI over a serial port interface. The HCI + Three-wire UART Transport Layer assumes that the UART + communication may have bit errors, overrun errors or burst + errors and thereby making CTS/RTS lines unnecessary. + + Say Y here to compile support for Three-wire UART protocol. + config BT_HCIBCM203X tristate "HCI BCM203x USB driver" depends on USB diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile index f4460f4f4b7..4afae20df51 100644 --- a/drivers/bluetooth/Makefile +++ b/drivers/bluetooth/Makefile @@ -28,4 +28,5 @@ hci_uart-$(CONFIG_BT_HCIUART_H4) += hci_h4.o hci_uart-$(CONFIG_BT_HCIUART_BCSP) += hci_bcsp.o hci_uart-$(CONFIG_BT_HCIUART_LL) += hci_ll.o hci_uart-$(CONFIG_BT_HCIUART_ATH3K) += hci_ath.o +hci_uart-$(CONFIG_BT_HCIUART_3WIRE) += hci_h5.o hci_uart-objs := $(hci_uart-y) diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c new file mode 100644 index 00000000000..6353d00ba86 --- /dev/null +++ b/drivers/bluetooth/hci_h5.c @@ -0,0 +1,88 @@ +/* + * + * Bluetooth HCI Three-wire UART driver + * + * Copyright (C) 2012 Intel Corporation + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/skbuff.h> + +#include <net/bluetooth/bluetooth.h> +#include <net/bluetooth/hci_core.h> + +#include "hci_uart.h" + +static int h5_open(struct hci_uart *hu) +{ + return -ENOSYS; +} + +static int h5_close(struct hci_uart *hu) +{ + return -ENOSYS; +} + +static int h5_recv(struct hci_uart *hu, void *data, int count) +{ + return -ENOSYS; +} + +static int h5_enqueue(struct hci_uart *hu, struct sk_buff *skb) +{ + return -ENOSYS; +} + +static struct sk_buff *h5_dequeue(struct hci_uart *hu) +{ + return NULL; +} + +static int h5_flush(struct hci_uart *hu) +{ + return -ENOSYS; +} + +static struct hci_uart_proto h5p = { + .id = HCI_UART_3WIRE, + .open = h5_open, + .close = h5_close, + .recv = h5_recv, + .enqueue = h5_enqueue, + .dequeue = h5_dequeue, + .flush = h5_flush, +}; + +int __init h5_init(void) +{ + int err = hci_uart_register_proto(&h5p); + + if (!err) + BT_INFO("HCI Three-wire UART (H5) protocol initialized"); + else + BT_ERR("HCI Three-wire UART (H5) protocol init failed"); + + return err; +} + +int __exit h5_deinit(void) +{ + return hci_uart_unregister_proto(&h5p); +} diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 2f9b796e106..142f49cde84 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -558,6 +558,9 @@ static int __init hci_uart_init(void) #ifdef CONFIG_BT_HCIUART_ATH3K ath_init(); #endif +#ifdef CONFIG_BT_HCIUART_3WIRE + h5_init(); +#endif return 0; } @@ -578,6 +581,9 @@ static void __exit hci_uart_exit(void) #ifdef CONFIG_BT_HCIUART_ATH3K ath_deinit(); #endif +#ifdef CONFIG_BT_HCIUART_3WIRE + h5_deinit(); +#endif /* Release tty registration of line discipline */ if ((err = tty_unregister_ldisc(N_HCI))) diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h index 6cf6ab22ad2..aaf9d7de1b9 100644 --- a/drivers/bluetooth/hci_uart.h +++ b/drivers/bluetooth/hci_uart.h @@ -104,3 +104,8 @@ int ll_deinit(void); int ath_init(void); int ath_deinit(void); #endif + +#ifdef CONFIG_BT_HCIUART_3WIRE +int h5_init(void); +int h5_deinit(void); +#endif |