Merge bk://linux.bkbits.net/linux-2.5

into hostme.bitkeeper.com:/ua/repos/l/linux-bt/bt-2.5

drivers/bluetooth/Kconfig

 
 menu "Bluetooth device drivers"
-	depends on BT!=n
+	depends on BT
 
 config BT_HCIUSB
 	tristate "HCI USB driver"
@@ -52,11 +52,19 @@ config BT_HCIUART_BCSP
 	help
 	  BCSP (BlueCore Serial Protocol) is serial protocol for communication 
 	  between Bluetooth device and host. This protocol is required for non
-	  USB Bluetooth devices based on CSR BlueCore chip, including PCMCIA and 
+	  USB Bluetooth devices based on CSR BlueCore chip, including PCMCIA and
 	  CF cards.
 
 	  Say Y here to compile support for HCI BCSP protocol.
 
+config BT_HCIUART_BCSP_TXCRC
+        bool "Transmit CRC with every BCSP packet"
+        depends on BT_HCIUART_BCSP
+        help
+	  If you say Y here, a 16-bit CRC checksum will be transmitted along with
+	  every BCSP (BlueCore Serial Protocol) packet sent to the Bluetooth chip.
+	  This increases reliability, but slightly reduces efficiency.
+
 config BT_HCIDTL1
 	tristate "HCI DTL1 (PC Card) driver"
 	depends on PCMCIA && BT
@@ -64,8 +72,8 @@ config BT_HCIDTL1
 	  Bluetooth HCI DTL1 (PC Card) driver.
 	  This driver provides support for Bluetooth PCMCIA devices with
 	  Nokia DTL1 interface:
-	  Nokia Bluetooth Card
-	  Socket Bluetooth CF Card
+	     Nokia Bluetooth Card
+	     Socket Bluetooth CF Card
 
 	  Say Y here to compile support for HCI DTL1 devices into the
 	  kernel or say M to compile it as module (dtl1_cs.o).
@@ -73,12 +81,12 @@ config BT_HCIDTL1
 config BT_HCIBT3C
 	tristate "HCI BT3C (PC Card) driver"
 	depends on PCMCIA && BT
-	---help---
+	help
 	  Bluetooth HCI BT3C (PC Card) driver.
 	  This driver provides support for Bluetooth PCMCIA devices with
 	  3Com BT3C interface:
-	  3Com Bluetooth Card (3CRWB6096)
-	  HP Bluetooth Card
+	     3Com Bluetooth Card (3CRWB6096)
+	     HP Bluetooth Card
 
 	  The HCI BT3C driver uses external firmware loader program provided in
 	  the BlueFW package. For more information, see <http://bluez.sf.net>.
@@ -92,13 +100,29 @@ config BT_HCIBLUECARD
 	help
 	  Bluetooth HCI BlueCard (PC Card) driver.
 	  This driver provides support for Bluetooth PCMCIA devices with
-	  Anycom BlueCard interface:
-	  Anycom Bluetooth PC Card
-	  Anycom Bluetooth CF Card
+	     Anycom BlueCard interface:
+	     Anycom Bluetooth PC Card
+	     Anycom Bluetooth CF Card
 
 	  Say Y here to compile support for HCI BlueCard devices into the
 	  kernel or say M to compile it as module (bluecard_cs.o).
 
+config BT_HCIBTUART
+	tristate "HCI UART (PC Card) device driver"
+	depends on PCMCIA && BT
+	help
+	  Bluetooth HCI UART (PC Card) driver.
+	  This driver provides support for Bluetooth PCMCIA devices with
+	  an UART interface:
+	  Xircom CreditCard Bluetooth Adapter
+	  Xircom RealPort2 Bluetooth Adapter
+	  Sphinx PICO Card
+	  H-Soft blue+Card
+	  Cyber-blue Compact Flash Card
+
+	  Say Y here to compile support for HCI UART devices into the
+	  kernel or say M to compile it as module (btuart_cs.o).
+
 config BT_HCIVHCI
 	tristate "HCI VHCI (Virtual HCI device) driver"
 	depends on BT

drivers/bluetooth/Makefile

@@ -8,6 +8,7 @@ obj-$(CONFIG_BT_HCIUART)	+= hci_uart.o
 obj-$(CONFIG_BT_HCIDTL1)	+= dtl1_cs.o
 obj-$(CONFIG_BT_HCIBT3C)	+= bt3c_cs.o
 obj-$(CONFIG_BT_HCIBLUECARD)	+= bluecard_cs.o
+obj-$(CONFIG_BT_HCIBTUART)	+= btuart_cs.o
 
 hci_uart-y				:= hci_ldisc.o
 hci_uart-$(CONFIG_BT_HCIUART_H4)	+= hci_h4.o

drivers/bluetooth/btuart_cs.c

+/*
+ *
+ *  Driver for Bluetooth PCMCIA cards with HCI UART interface
+ *
+ *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *  The initial developer of the original code is David A. Hinds
+ *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+
+#include <linux/skbuff.h>
+#include <linux/string.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+
+
+/* ======================== Module parameters ======================== */
+
+
+/* Bit map of interrupts to choose from */
+static u_int irq_mask = 0xffff;
+static int irq_list[4] = { -1 };
+
+MODULE_PARM(irq_mask, "i");
+MODULE_PARM(irq_list, "1-4i");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth driver for Bluetooth PCMCIA cards with HCI UART interface");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct btuart_info_t {
+	dev_link_t link;
+	dev_node_t node;
+
+	struct hci_dev hdev;
+
+	spinlock_t lock;	/* For serializing operations */
+
+	struct sk_buff_head txq;
+	unsigned long tx_state;
+
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+} btuart_info_t;
+
+
+void btuart_config(dev_link_t *link);
+void btuart_release(u_long arg);
+int btuart_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "btuart_cs";
+
+dev_link_t *btuart_attach(void);
+void btuart_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* Maximum baud rate */
+#define SPEED_MAX  115200
+
+/* Default baud rate: 57600, 115200, 230400 or 460800 */
+#define DEFAULT_BAUD_RATE  115200
+
+
+/* Transmit states  */
+#define XMIT_SENDING	1
+#define XMIT_WAKEUP	2
+#define XMIT_WAITING	8
+
+/* Receiver states */
+#define RECV_WAIT_PACKET_TYPE	0
+#define RECV_WAIT_EVENT_HEADER	1
+#define RECV_WAIT_ACL_HEADER	2
+#define RECV_WAIT_SCO_HEADER	3
+#define RECV_WAIT_DATA		4
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int btuart_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
+{
+	int actual = 0;
+
+	/* Tx FIFO should be empty */
+	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
+		return 0;
+
+	/* Fill FIFO with current frame */
+	while ((fifo_size-- > 0) && (actual < len)) {
+		/* Transmit next byte */
+		outb(buf[actual], iobase + UART_TX);
+		actual++;
+	}
+
+	return actual;
+}
+
+
+static void btuart_write_wakeup(btuart_info_t *info)
+{
+	if (!info) {
+		printk(KERN_WARNING "btuart_cs: Call of write_wakeup for unknown device.\n");
+		return;
+	}
+
+	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+		return;
+	}
+
+	do {
+		register unsigned int iobase = info->link.io.BasePort1;
+		register struct sk_buff *skb;
+		register int len;
+
+		clear_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (!(info->link.state & DEV_PRESENT))
+			return;
+
+		if (!(skb = skb_dequeue(&(info->txq))))
+			break;
+
+		/* Send frame */
+		len = btuart_write(iobase, 16, skb->data, skb->len);
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (len == skb->len) {
+			kfree_skb(skb);
+		} else {
+			skb_pull(skb, len);
+			skb_queue_head(&(info->txq), skb);
+		}
+
+		info->hdev.stat.byte_tx += len;
+
+	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
+
+	clear_bit(XMIT_SENDING, &(info->tx_state));
+}
+
+
+static void btuart_receive(btuart_info_t *info)
+{
+	unsigned int iobase;
+	int boguscount = 0;
+
+	if (!info) {
+		printk(KERN_WARNING "btuart_cs: Call of receive for unknown device.\n");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	do {
+		info->hdev.stat.byte_rx++;
+
+		/* Allocate packet */
+		if (info->rx_skb == NULL) {
+			info->rx_state = RECV_WAIT_PACKET_TYPE;
+			info->rx_count = 0;
+			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				printk(KERN_WARNING "btuart_cs: Can't allocate mem for new packet.\n");
+				return;
+			}
+		}
+
+		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
+
+			info->rx_skb->dev = (void *)&(info->hdev);
+			info->rx_skb->pkt_type = inb(iobase + UART_RX);
+
+			switch (info->rx_skb->pkt_type) {
+
+			case HCI_EVENT_PKT:
+				info->rx_state = RECV_WAIT_EVENT_HEADER;
+				info->rx_count = HCI_EVENT_HDR_SIZE;
+				break;
+
+			case HCI_ACLDATA_PKT:
+				info->rx_state = RECV_WAIT_ACL_HEADER;
+				info->rx_count = HCI_ACL_HDR_SIZE;
+				break;
+
+			case HCI_SCODATA_PKT:
+				info->rx_state = RECV_WAIT_SCO_HEADER;
+				info->rx_count = HCI_SCO_HDR_SIZE;
+				break;
+
+			default:
+				/* Unknown packet */
+				printk(KERN_WARNING "btuart_cs: Unknown HCI packet with type 0x%02x received.\n", info->rx_skb->pkt_type);
+				info->hdev.stat.err_rx++;
+				clear_bit(HCI_RUNNING, &(info->hdev.flags));
+
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+				break;
+
+			}
+
+		} else {
+
+			*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
+			info->rx_count--;
+
+			if (info->rx_count == 0) {
+
+				int dlen;
+				struct hci_event_hdr *eh;
+				struct hci_acl_hdr *ah;
+				struct hci_sco_hdr *sh;
+
+
+				switch (info->rx_state) {
+
+				case RECV_WAIT_EVENT_HEADER:
+					eh = (struct hci_event_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = eh->plen;
+					break;
+
+				case RECV_WAIT_ACL_HEADER:
+					ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+					dlen = __le16_to_cpu(ah->dlen);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = dlen;
+					break;
+
+				case RECV_WAIT_SCO_HEADER:
+					sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = sh->dlen;
+					break;
+
+				case RECV_WAIT_DATA:
+					hci_recv_frame(info->rx_skb);
+					info->rx_skb = NULL;
+					break;
+
+				}
+
+			}
+
+		}
+
+		/* Make sure we don't stay here to long */
+		if (boguscount++ > 16)
+			break;
+
+	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
+}
+
+
+void btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	btuart_info_t *info = dev_inst;
+	unsigned int iobase;
+	int boguscount = 0;
+	int iir, lsr;
+
+	if (!info) {
+		printk(KERN_WARNING "btuart_cs: Call of irq %d for unknown device.\n", irq);
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock(&(info->lock));
+
+	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+	while (iir) {
+
+		/* Clear interrupt */
+		lsr = inb(iobase + UART_LSR);
+
+		switch (iir) {
+		case UART_IIR_RLSI:
+			printk(KERN_NOTICE "btuart_cs: RLSI\n");
+			break;
+		case UART_IIR_RDI:
+			/* Receive interrupt */
+			btuart_receive(info);
+			break;
+		case UART_IIR_THRI:
+			if (lsr & UART_LSR_THRE) {
+				/* Transmitter ready for data */
+				btuart_write_wakeup(info);
+			}
+			break;
+		default:
+			printk(KERN_NOTICE "btuart_cs: Unhandled IIR=%#x\n", iir);
+			break;
+		}
+
+		/* Make sure we don't stay here to long */
+		if (boguscount++ > 100)
+			break;
+
+		iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+
+	}
+
+	spin_unlock(&(info->lock));
+}
+
+
+static void btuart_change_speed(btuart_info_t *info, unsigned int speed)
+{
+	unsigned long flags;
+	unsigned int iobase;
+	int fcr;		/* FIFO control reg */
+	int lcr;		/* Line control reg */
+	int divisor;
+
+	if (!info) {
+		printk(KERN_WARNING "btuart_cs: Call of change speed for unknown device.\n");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	divisor = SPEED_MAX / speed;
+
+	fcr = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT;
+
+	/* 
+	 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
+	 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
+	 * about this timeout since it will always be fast enough. 
+	 */
+
+	if (speed < 38400)
+		fcr |= UART_FCR_TRIGGER_1;
+	else
+		fcr |= UART_FCR_TRIGGER_14;
+
+	/* Bluetooth cards use 8N1 */
+	lcr = UART_LCR_WLEN8;
+
+	outb(UART_LCR_DLAB | lcr, iobase + UART_LCR);	/* Set DLAB */
+	outb(divisor & 0xff, iobase + UART_DLL);	/* Set speed */
+	outb(divisor >> 8, iobase + UART_DLM);
+	outb(lcr, iobase + UART_LCR);	/* Set 8N1  */
+	outb(fcr, iobase + UART_FCR);	/* Enable FIFO's */
+
+	/* Turn on interrups */
+	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+}
+
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int btuart_hci_flush(struct hci_dev *hdev)
+{
+	btuart_info_t *info = (btuart_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int btuart_hci_open(struct hci_dev *hdev)
+{
+	set_bit(HCI_RUNNING, &(hdev->flags));
+
+	return 0;
+}
+
+
+static int btuart_hci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	btuart_hci_flush(hdev);
+
+	return 0;
+}
+
+
+static int btuart_hci_send_frame(struct sk_buff *skb)
+{
+	btuart_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+
+	if (!hdev) {
+		printk(KERN_WARNING "btuart_cs: Frame for unknown HCI device (hdev=NULL).");
+		return -ENODEV;
+	}
+
+	info = (btuart_info_t *)(hdev->driver_data);
+
+	switch (skb->pkt_type) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		break;
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		break;
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		break;
+	};
+
+	/* Prepend skb with frame type */
+	memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
+	skb_queue_tail(&(info->txq), skb);
+
+	btuart_write_wakeup(info);
+
+	return 0;
+}
+
+
+static void btuart_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+int btuart_open(btuart_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev;
+
+	spin_lock_init(&(info->lock));
+
+	skb_queue_head_init(&(info->txq));
+
+	info->rx_state = RECV_WAIT_PACKET_TYPE;
+	info->rx_count = 0;
+	info->rx_skb = NULL;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	/* Initialize UART */
+	outb(UART_LCR_WLEN8, iobase + UART_LCR);	/* Reset DLAB */
+	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
+
+	/* Turn on interrupts */
+	// outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	btuart_change_speed(info, DEFAULT_BAUD_RATE);
+
+	/* Timeout before it is safe to send the first HCI packet */
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ);
+
+
+	/* Initialize and register HCI device */
+
+	hdev = &(info->hdev);
+
+	hdev->type = HCI_PCCARD;
+	hdev->driver_data = info;
+
+	hdev->open = btuart_hci_open;
+	hdev->close = btuart_hci_close;
+	hdev->flush = btuart_hci_flush;
+	hdev->send = btuart_hci_send_frame;
+	hdev->destruct = btuart_hci_destruct;
+	hdev->ioctl = btuart_hci_ioctl;
+
+	if (hci_register_dev(hdev) < 0) {
+		printk(KERN_WARNING "btuart_cs: Can't register HCI device %s.\n", hdev->name);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+
+int btuart_close(btuart_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev = &(info->hdev);
+
+	btuart_hci_close(hdev);
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	if (hci_unregister_dev(hdev) < 0)
+		printk(KERN_WARNING "btuart_cs: Can't unregister HCI device %s.\n", hdev->name);
+
+	return 0;
+}
+
+
+
+/* ======================== Card services ======================== */
+
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+	error_info_t err = { func, ret };
+
+	CardServices(ReportError, handle, &err);
+}
+
+
+dev_link_t *btuart_attach(void)
+{
+	btuart_info_t *info;
+	client_reg_t client_reg;
+	dev_link_t *link;
+	int i, ret;
+
+	/* Create new info device */
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return NULL;
+	memset(info, 0, sizeof(*info));
+
+	link = &info->link;
+	link->priv = info;
+
+	init_timer(&link->release);
+	link->release.function = &btuart_release;
+	link->release.data = (u_long)link;
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	link->io.NumPorts1 = 8;
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+	link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
+
+	if (irq_list[0] == -1)
+		link->irq.IRQInfo2 = irq_mask;
+	else
+		for (i = 0; i < 4; i++)
+			link->irq.IRQInfo2 |= 1 << irq_list[i];
+
+	link->irq.Handler = btuart_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.Vcc = 50;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	/* Register with Card Services */
+	link->next = dev_list;
+	dev_list = link;
+	client_reg.dev_info = &dev_info;
+	client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+	client_reg.EventMask =
+		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+		CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+		CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+	client_reg.event_handler = &btuart_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = CardServices(RegisterClient, &link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		btuart_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+void btuart_detach(dev_link_t *link)
+{
+	btuart_info_t *info = link->priv;
+	dev_link_t **linkp;
+	int ret;
+
+	/* Locate device structure */
+	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+		if (*linkp == link)
+			break;
+
+	if (*linkp == NULL)
+		return;
+
+	del_timer(&link->release);
+	if (link->state & DEV_CONFIG)
+		btuart_release((u_long)link);
+
+	if (link->handle) {
+		ret = CardServices(DeregisterClient, link->handle);
+		if (ret != CS_SUCCESS)
+			cs_error(link->handle, DeregisterClient, ret);
+	}
+
+	/* Unlink device structure, free bits */
+	*linkp = link->next;
+
+	kfree(info);
+}
+
+
+static int get_tuple(int fn, client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	int i;
+
+	i = CardServices(fn, handle, tuple);
+	if (i != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+
+	i = CardServices(GetTupleData, handle, tuple);
+	if (i != CS_SUCCESS)
+		return i;
+
+	return CardServices(ParseTuple, handle, tuple, parse);
+}
+
+
+#define first_tuple(a, b, c) get_tuple(GetFirstTuple, a, b, c)
+#define next_tuple(a, b, c) get_tuple(GetNextTuple, a, b, c)
+
+void btuart_config(dev_link_t *link)
+{
+	static ioaddr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	client_handle_t handle = link->handle;
+	btuart_info_t *info = link->priv;
+	tuple_t tuple;
+	u_short buf[256];
+	cisparse_t parse;
+	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+	config_info_t config;
+	int i, j, try, last_ret, last_fn;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+
+	/* Get configuration register information */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	last_ret = first_tuple(handle, &tuple, &parse);
+	if (last_ret != CS_SUCCESS) {
+		last_fn = ParseTuple;
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+	i = CardServices(GetConfigurationInfo, handle, &config);
+	link->conf.Vcc = config.Vcc;
+
+	/* First pass: look for a config entry that looks normal. */
+	tuple.TupleData = (cisdata_t *) buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+	/* Two tries: without IO aliases, then with aliases */
+	for (try = 0; try < 2; try++) {
+		i = first_tuple(handle, &tuple, &parse);
+		while (i != CS_NO_MORE_ITEMS) {
+			if (i != CS_SUCCESS)
+				goto next_entry;
+			if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
+				link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+			if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
+				link->conf.ConfigIndex = cf->index;
+				link->io.BasePort1 = cf->io.win[0].base;
+				link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
+				i = CardServices(RequestIO, link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+next_entry:
+			i = next_tuple(handle, &tuple, &parse);
+		}
+	}
+
+	/* Second pass: try to find an entry that isn't picky about
+	   its base address, then try to grab any standard serial port
+	   address, and finally try to get any free port. */
+	i = first_tuple(handle, &tuple, &parse);
+	while (i != CS_NO_MORE_ITEMS) {
+		if ((i == CS_SUCCESS) && (cf->io.nwin > 0)
+		    && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
+			link->conf.ConfigIndex = cf->index;
+			for (j = 0; j < 5; j++) {
+				link->io.BasePort1 = base[j];
+				link->io.IOAddrLines = base[j] ? 16 : 3;
+				i = CardServices(RequestIO, link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+		}
+		i = next_tuple(handle, &tuple, &parse);
+	}
+
+found_port:
+	if (i != CS_SUCCESS) {
+		printk(KERN_NOTICE "btuart_cs: No usable port range found. Giving up.\n");
+		cs_error(link->handle, RequestIO, i);
+		goto failed;
+	}
+
+	i = CardServices(RequestIRQ, link->handle, &link->irq);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIRQ, i);
+		link->irq.AssignedIRQ = 0;
+	}
+
+	i = CardServices(RequestConfiguration, link->handle, &link->conf);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestConfiguration, i);
+		goto failed;
+	}
+
+	MOD_INC_USE_COUNT;
+
+	if (btuart_open(info) != 0)
+		goto failed;
+
+	strcpy(info->node.dev_name, info->hdev.name);
+	link->dev = &info->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+
+failed:
+	btuart_release((u_long) link);
+}
+
+
+void btuart_release(u_long arg)
+{
+	dev_link_t *link = (dev_link_t *)arg;
+	btuart_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		btuart_close(info);
+
+	MOD_DEC_USE_COUNT;
+
+	link->dev = NULL;
+
+	CardServices(ReleaseConfiguration, link->handle);
+	CardServices(ReleaseIO, link->handle, &link->io);
+	CardServices(ReleaseIRQ, link->handle, &link->irq);
+
+	link->state &= ~DEV_CONFIG;
+}
+
+
+int btuart_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	btuart_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			btuart_close(info);
+			mod_timer(&link->release, jiffies + HZ / 20);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		btuart_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG)
+			CardServices(ReleaseConfiguration, link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (DEV_OK(link))
+			CardServices(RequestConfiguration, link->handle, &link->conf);
+		break;
+	}
+
+	return 0;
+}
+
+
+
+/* ======================== Module initialization ======================== */
+
+
+int __init init_btuart_cs(void)
+{
+	servinfo_t serv;
+	int err;
+
+	CardServices(GetCardServicesInfo, &serv);
+	if (serv.Revision != CS_RELEASE_CODE) {
+		printk(KERN_NOTICE "btuart_cs: Card Services release does not match!\n");
+		return -1;
+	}
+
+	err = register_pccard_driver(&dev_info, &btuart_attach, &btuart_detach);
+
+	return err;
+}
+
+
+void __exit exit_btuart_cs(void)
+{
+	unregister_pccard_driver(&dev_info);
+
+	while (dev_list != NULL)
+		btuart_detach(dev_list);
+}
+
+
+module_init(init_btuart_cs);
+module_exit(exit_btuart_cs);
+
+EXPORT_NO_SYMBOLS;

include/net/bluetooth/hci.h

@@ -48,6 +48,7 @@
 #define HCI_PCCARD	2
 #define HCI_UART 	3
 #define HCI_RS232 	4
+#define HCI_PCI		5
 
 /* HCI device flags */
 enum {

net/bluetooth/Kconfig

@@ -7,7 +7,7 @@ menu "Bluetooth support"
 
 config BT
 	tristate "Bluetooth subsystem support"
-	---help---
+	help
 	  Bluetooth is low-cost, low-power, short-range wireless technology.
 	  It was designed as a replacement for cables and other short-range
 	  technologies like IrDA.  Bluetooth operates in personal area range
@@ -15,12 +15,12 @@ config BT
 	  Bluetooth can be found at <http://www.bluetooth.com/>.
 
 	  Linux Bluetooth subsystem consist of several layers:
-	  Bluetooth Core (HCI device and connection manager, scheduler)
-	  HCI Device drivers (interface to the hardware)
-	  L2CAP Module (L2CAP protocol)
-	  SCO Module (SCO links)
-	  RFCOMM Module (RFCOMM protocol)  
-	  BNEP Module (BNEP protocol)
+	     Bluetooth Core (HCI device and connection manager, scheduler)
+	     HCI Device drivers (interface to the hardware)
+	     L2CAP Module (L2CAP protocol)
+	     SCO Module (SCO links)
+	     RFCOMM Module (RFCOMM protocol)  
+	     BNEP Module (BNEP protocol)
 
 	  Say Y here to enable Linux Bluetooth support and to build Bluetooth Core
 	  layer.

net/bluetooth/bnep/Kconfig

 config BT_BNEP
 	tristate "BNEP protocol support"
-	depends on BT_L2CAP
-	---help---
+	depends on BT && BT_L2CAP
+	help
 	  BNEP (Bluetooth Network Encapsulation Protocol) is Ethernet
 	  emulation layer on top of Bluetooth. BNEP is required for Bluetooth
 	  PAN (Personal Area Network).

net/bluetooth/l2cap.c

@@ -186,62 +186,6 @@ static inline void l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, stru
 	write_unlock(&l->lock);
 }
 
-int l2cap_connect(struct sock *sk)
-{
-	bdaddr_t *src = &bt_sk(sk)->src;
-	bdaddr_t *dst = &bt_sk(sk)->dst;
-	struct l2cap_conn *conn;
-	struct hci_conn   *hcon;
-	struct hci_dev    *hdev;
-	int err = 0;
-
-	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst), l2cap_pi(sk)->psm);
-
-	if (!(hdev = hci_get_route(dst, src)))
-		return -EHOSTUNREACH;
-
-	hci_dev_lock_bh(hdev);
-
-	err = -ENOMEM;
-
-	hcon = hci_connect(hdev, ACL_LINK, dst);
-	if (!hcon)
-		goto done;
-
-	conn = l2cap_conn_add(hcon, 0);
-	if (!conn) {
-		hci_conn_put(hcon);
-		goto done;
-	}
-
-	err = 0;
-
-	/* Update source addr of the socket */
-	bacpy(src, conn->src);
-
-	l2cap_chan_add(conn, sk, NULL);
-
-	sk->state = BT_CONNECT;
-	l2cap_sock_set_timer(sk, sk->sndtimeo);
-
-	if (hcon->state == BT_CONNECTED) {
-		if (sk->type == SOCK_SEQPACKET) {
-			struct l2cap_conn_req req;
-			req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
-			req.psm  = l2cap_pi(sk)->psm;
-			l2cap_send_req(conn, L2CAP_CONN_REQ, sizeof(req), &req);
-		} else {
-			l2cap_sock_clear_timer(sk);
-			sk->state = BT_CONNECTED;
-		}
-	}
-
-done:
-	hci_dev_unlock_bh(hdev);
-	hci_dev_put(hdev);
-	return err;
-}
-
 /* ---- Socket interface ---- */
 static struct sock *__l2cap_get_sock_by_addr(u16 psm, bdaddr_t *src)
 {
@@ -482,6 +426,62 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_
 	return err;
 }
 
+static int l2cap_do_connect(struct sock *sk)
+{
+	bdaddr_t *src = &bt_sk(sk)->src;
+	bdaddr_t *dst = &bt_sk(sk)->dst;
+	struct l2cap_conn *conn;
+	struct hci_conn   *hcon;
+	struct hci_dev    *hdev;
+	int err = 0;
+
+	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst), l2cap_pi(sk)->psm);
+
+	if (!(hdev = hci_get_route(dst, src)))
+		return -EHOSTUNREACH;
+
+	hci_dev_lock_bh(hdev);
+
+	err = -ENOMEM;
+
+	hcon = hci_connect(hdev, ACL_LINK, dst);
+	if (!hcon)
+		goto done;
+
+	conn = l2cap_conn_add(hcon, 0);
+	if (!conn) {
+		hci_conn_put(hcon);
+		goto done;
+	}
+
+	err = 0;
+
+	/* Update source addr of the socket */
+	bacpy(src, conn->src);
+
+	l2cap_chan_add(conn, sk, NULL);
+
+	sk->state = BT_CONNECT;
+	l2cap_sock_set_timer(sk, sk->sndtimeo);
+
+	if (hcon->state == BT_CONNECTED) {
+		if (sk->type == SOCK_SEQPACKET) {
+			struct l2cap_conn_req req;
+			req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
+			req.psm  = l2cap_pi(sk)->psm;
+			l2cap_send_req(conn, L2CAP_CONN_REQ, sizeof(req), &req);
+		} else {
+			l2cap_sock_clear_timer(sk);
+			sk->state = BT_CONNECTED;
+		}
+	}
+
+done:
+	hci_dev_unlock_bh(hdev);
+	hci_dev_put(hdev);
+	return err;
+}
+
 static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
 {
 	struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
@@ -527,7 +527,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
 	bacpy(&bt_sk(sk)->dst, &la->l2_bdaddr);
 	l2cap_pi(sk)->psm = la->l2_psm;
 
-	if ((err = l2cap_connect(sk)))
+	if ((err = l2cap_do_connect(sk)))
 		goto done;
 
 wait:
@@ -2074,7 +2074,7 @@ static int __init l2cap_proc_init(void)
 
 static void __init l2cap_proc_cleanup(void)
 {
-        return 0;
+        return;
 }
 #endif /* CONFIG_PROC_FS */
 

net/bluetooth/rfcomm/Kconfig

 config BT_RFCOMM
 	tristate "RFCOMM protocol support"
-	depends on BT_L2CAP
+	depends on BT && BT_L2CAP
 	help
 	  RFCOMM provides connection oriented stream transport. RFCOMM
 	  support is required for Dialup Networking, OBEX and other Bluetooth

net/bluetooth/rfcomm/core.c

@@ -1312,6 +1312,9 @@ static int rfcomm_recv_mcc(struct rfcomm_session *s, struct sk_buff *skb)
 			rfcomm_send_test(s, 0, skb->data, skb->len);
 		break;
 
+	case RFCOMM_NSC:
+		break;
+
 	default:
 		BT_ERR("Unknown control type 0x%02x", type);
 		rfcomm_send_nsc(s, cr, type);
@@ -1442,7 +1445,7 @@ static inline int rfcomm_process_tx(struct rfcomm_dlc *d)
 
 	/* Send pending MSC */
 	if (test_and_clear_bit(RFCOMM_MSC_PENDING, &d->flags))
-		rfcomm_send_msc(d->session, d->dlci, 1, d->v24_sig); 
+		rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig); 
 	
 	if (d->credits) {
 		/* CFC enabled. 
@@ -1831,7 +1834,7 @@ static int __init rfcomm_proc_init(void)
 
 static void __init rfcomm_proc_cleanup(void)
 {
-        return 0;
+        return;
 }
 #endif /* CONFIG_PROC_FS */
 

net/bluetooth/rfcomm/sock.c

@@ -851,7 +851,7 @@ static int __init rfcomm_sock_proc_init(void)
 
 static void __init rfcomm_sock_proc_cleanup(void)
 {
-        return 0;
+        return;
 }
 #endif /* CONFIG_PROC_FS */
 

net/bluetooth/rfcomm/tty.c

@@ -442,7 +442,7 @@ static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb)
 	struct tty_struct *tty;
        
 	if (!dev || !(tty = dev->tty)) {
-		kfree(skb);
+		kfree_skb(skb);
 		return;
 	}
 
@@ -669,12 +669,12 @@ static int rfcomm_tty_set_modem_status(uint cmd, struct rfcomm_dlc *dlc, uint st
 	else
 		rfcomm_dlc_get_modem_status(dlc, &v24_sig);
 
-	mask =  (status & TIOCM_DSR) ? RFCOMM_V24_RTC : 0 |
-		(status & TIOCM_DTR) ? RFCOMM_V24_RTC : 0 |
-		(status & TIOCM_RTS) ? RFCOMM_V24_RTR : 0 |
-		(status & TIOCM_CTS) ? RFCOMM_V24_RTR : 0 |
-		(status & TIOCM_RI)  ? RFCOMM_V24_IC  : 0 |
-		(status & TIOCM_CD)  ? RFCOMM_V24_DV  : 0;
+	mask =  ((status & TIOCM_DSR) ? RFCOMM_V24_RTC : 0) |
+		((status & TIOCM_DTR) ? RFCOMM_V24_RTC : 0) |
+		((status & TIOCM_RTS) ? RFCOMM_V24_RTR : 0) |
+		((status & TIOCM_CTS) ? RFCOMM_V24_RTR : 0) |
+		((status & TIOCM_RI)  ? RFCOMM_V24_IC  : 0) |
+		((status & TIOCM_CD)  ? RFCOMM_V24_DV  : 0);
 
 	if (cmd == TIOCMBIC)
 		v24_sig &= ~mask;

net/bluetooth/sco.c

@@ -962,7 +962,7 @@ static int __init sco_proc_init(void)
 
 static void __init sco_proc_cleanup(void)
 {
-        return 0;
+        return;
 }
 #endif /* CONFIG_PROC_FS */