Bluetooth: add Qualcomm In-Band Sleep support

This adds "qualcomm-ibs" to the supported controller types list
and claims HCI UART protocol number 5 for it. This corresponds the
kernel tty line discipline configured as HCI_UART_IBS, which
supports Qualcomm's Software In-Band Sleep protocol.

Change-Id: Ie6f568833db76e234d3bed89f9d4b06a005e3d30

tools/hciattach.c

@@ -2,10 +2,9 @@
  *
  *  BlueZ - Bluetooth protocol stack for Linux
  *
- *  Copyright (C) 2000-2001  Qualcomm Incorporated
  *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
- *
+ *  Copyright (C) 2000-2001, 2010, 2011 Code Aurora Forum. All rights reserved.
  *
  *  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
@@ -1034,6 +1033,39 @@ static int bcm2035(int fd, struct uart_t *u, struct termios *ti)
 	return 0;
 }
 
+static int qcom_uart_init(int fd, struct uart_t *u, struct termios *ti)
+{
+	int flags = 0;
+
+	if (ioctl(fd, TIOCMGET, &flags) < 0){
+		perror("TIOCMGET failed in init \n");
+		return -1;
+	}
+	flags &= ~TIOCM_RTS;
+	if (ioctl(fd, TIOCMSET, &flags) < 0){
+		perror("TIOCMSET failed in init: HW Flow-off error  \n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int qcom_uart_post(int fd, struct uart_t *u, struct termios *ti)
+{
+	int flags = 0;
+
+	if (ioctl(fd, TIOCMGET, &flags) < 0){
+		perror("TIOCMGET failed in post \n");
+		return -1;
+	}
+	flags &= ~TIOCM_RTS;
+	if (ioctl(fd, TIOCMSET, &flags) < 0){
+		perror("TIOCMSET failed in post: HW Flow-on error \n");
+		return -1;
+	}
+	return 0;
+}
+
 struct uart_t uart[] = {
 	{ "any",        0x0000, 0x0000, HCI_UART_H4,   115200, 115200,
 				FLOW_CTL, DISABLE_PM, NULL, NULL     },
@@ -1137,6 +1169,9 @@ struct uart_t uart[] = {
 	{ "qualcomm",   0x0000, 0x0000, HCI_UART_H4,   115200, 115200,
 			FLOW_CTL, DISABLE_PM, NULL, qualcomm, NULL },
 
+	{ "qualcomm-ibs", 0x0000, 0x0000, HCI_UART_IBS,  115200, 115200,
+		FLOW_CTL, DISABLE_PM, NULL, qcom_uart_init, qcom_uart_post },
+
 	{ NULL, 0 }
 };
 

tools/hciattach.h

@@ -2,8 +2,8 @@
  *
  *  BlueZ - Bluetooth protocol stack for Linux
  *
- *  Copyright (C) 2003-2010  Marcel Holtmann <marcel@holtmann.org>
- *
+ *  Copyright (C) 2003-2009  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2010, 2011 Code Aurora Forum. All rights reserved.
  *
  *  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
@@ -38,7 +38,8 @@
 #define HCI_UART_3WIRE	2
 #define HCI_UART_H4DS	3
 #define HCI_UART_LL	4
-#define HCI_UART_ATH3K  5
+#define HCI_UART_IBS	5
+#define HCI_UART_ATH3K	6
 
 #define HCI_UART_RAW_DEVICE	0