path: root/packages/linux/openzaurus-pxa-2.4.18-rmk7-pxa3-embedix20031107/bt950_cs.patch

diff -Nur linux-orig/drivers/bluetooth/bt950_cs.c linux/drivers/bluetooth/bt950_cs.c
--- linux-orig/drivers/bluetooth/bt950_cs.c	1970-01-01 03:00:00.000000000 +0300
+++ linux/drivers/bluetooth/bt950_cs.c	2004-02-04 09:55:04.000000000 +0300
@@ -0,0 +1,1133 @@
+/*
+ *
+ *  Driver for Bluetooth cards with OXCF950 UART interface
+ *
+ *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
+ *                           Albert Rybalkin <albertr@iral.com>
+ *
+ *
+ *  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>
+
+#ifdef CONFIG_MODVERSIONS
+#ifndef MODVERSIONS
+#define MODVERSIONS
+#endif
+#include <linux/modversions.h>
+#endif
+
+#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/delay.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>
+
+/* Default baud rate: 57600, 115200, 230400 or 460800 */
+#define DEFAULT_BAUD_RATE 460800
+
+
+/* ======================== Module parameters ======================== */
+
+
+/* Bit map of interrupts to choose from */
+static u_int irq_mask = 0x86bc;
+static int irq_list[4] = { -1 };
+static long baud_rate = DEFAULT_BAUD_RATE;
+
+MODULE_PARM(irq_mask, "i");
+MODULE_PARM(irq_list, "1-4i");
+MODULE_PARM(baud_rate, "l");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Albert Rybalkin <albertr@iral.com>");
+MODULE_DESCRIPTION("BlueZ driver for Bluetooth cards with OXCF950 UART interface");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct bt950_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;
+} bt950_info_t;
+
+
+static void bt950_config(dev_link_t *link);
+static void bt950_release(u_long arg);
+static int bt950_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "bt950_cs";
+
+static dev_link_t *bt950_attach(void);
+static void bt950_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+/* 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
+
+/* Special packet types */
+#define PKT_BAUD_RATE_57600   0x80
+#define PKT_BAUD_RATE_115200  0x81
+#define PKT_BAUD_RATE_230400  0x82
+#define PKT_BAUD_RATE_460800  0x83
+
+/* 950-specific stuff */
+#define MAX_WAIT	0xFFFF
+#define FIFO_SIZE	128
+
+#define TR_TX_INT	0x10	/* TTL: TX interrupt trigger level (0-127) */
+#define TR_RX_INT	0x40	/* RTL: RX interrupt trigger level (1-127) */
+#define TR_CTL_LO	0x08	/* FCL: auto flow control LOWER trigger level (0-127) */
+#define TR_CTL_HI	0x60	/* FCH: auto flow control HIGH trigger level (1-127) */
+
+/* 950-specific registers and values we use. It should
+ * eventually go to include/linux/serial_reg.h */
+#define UART_IER_CTS	0x80	/* enable CTS interrupt */
+#define UART_IER_RTS	0x40	/* enable RTS interrupt */
+#define UART_IER_SLP	0x10	/* enable sleep mode */
+#define UART_LCR_650	0xBF	/* enable 650-compatible registers access */
+#define UART_LSR_DE	0x80	/* data error */
+#define UART_LSR_ERR	(UART_LSR_OE|UART_LSR_PE|UART_LSR_FE|UART_LSR_BI|UART_LSR_DE)
+#define UART_IIR_RXTOUT	0x0C	/* RX timeout interrupt */
+#define UART_IIR_CTSRTS	0x20	/* CTS or RTS change interrupt */
+#define UART_IIR_RTS	0x40
+#define UART_IIR_CTS	0x80
+#define UART_IIR_MASK	0x3E	/* interrupt mask */
+#define UART_SRT	0x0D	/* soft reset register */
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int bt950_write(unsigned int iobase, int fifo_size, const unsigned char *buf, int len)
+{
+	int i, actual = 0;
+
+	/* Activate DTR and RTS */
+	outb(UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2, iobase + UART_MCR);
+
+	/* Wait for CTS flow control */
+	for (i = MAX_WAIT; i; i--)
+		if (inb(iobase + UART_MSR) & UART_MSR_CTS)
+			break;
+
+	if (!i) {
+		printk(KERN_WARNING "bt950_cs: Timeout waiting for CTS on write.\n");
+		return 0;
+	}
+
+	/* The TX FIFO should be empty */
+	for (i = MAX_WAIT; i; i--)
+		if (inb(iobase + UART_LSR) & UART_LSR_THRE)
+			break;
+
+	if (!i) {
+		printk(KERN_WARNING "bt950_cs: Timeout waiting for empty TX FIFO on write.\n");
+		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 bt950_write_wakeup(bt950_info_t *info)
+{
+	unsigned char lcr;
+	unsigned int divisor;
+
+	if (!info) {
+		printk(KERN_WARNING "bt950_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;
+
+		if (skb->pkt_type & 0x80) {
+			/* Disable RTS */
+			outb((inb(iobase + UART_MCR) & ~UART_MCR_RTS), iobase + UART_MCR);
+		}
+
+		/* Send frame */
+		len = bt950_write(iobase, FIFO_SIZE, skb->data, skb->len);
+
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (skb->pkt_type & 0x80) {
+
+			wait_queue_head_t wait;
+
+			switch (skb->pkt_type) {
+
+			case PKT_BAUD_RATE_460800:
+				divisor = 1;
+				break;
+
+			case PKT_BAUD_RATE_230400:
+				divisor = 2;
+				break;
+
+			case PKT_BAUD_RATE_115200:
+				divisor = 4;
+				break;
+
+			case PKT_BAUD_RATE_57600:
+				/* Fall through... */
+
+			default:
+				divisor = 8;
+				break;
+			}
+
+			/* Wait until the command reaches the baseband */
+			init_waitqueue_head(&wait);
+			interruptible_sleep_on_timeout(&wait, HZ / 10);
+
+			/* Set baud on baseband */
+			/* Enable divisor latch access */
+			lcr = inb(iobase + UART_LCR) & 0x3F;
+			outb(lcr | UART_LCR_DLAB, iobase + UART_LCR);
+
+			/* Setup divisor latch */
+			outb(divisor & 0x00FF, iobase + UART_DLL);		/* divisor latch LOW byte */
+			outb((divisor & 0xFF00) >> 8, iobase + UART_DLM);	/* divisor latch HI byte */
+
+			/* Disable divisor latch access */
+			outb(lcr, iobase + UART_LCR);
+
+			/* Enable RTS */
+			outb((inb(iobase + UART_MCR) | UART_MCR_RTS), iobase + UART_MCR);
+
+			/* Wait before the next HCI packet can be send */
+			interruptible_sleep_on_timeout(&wait, HZ);
+
+		}
+
+		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 inline void bt950_receive(bt950_info_t *info)
+{
+	unsigned int iobase;
+	int boguscount = 0;
+
+	if (!info) {
+		printk(KERN_ERR "bt950_cs: Call of receive for unknown device.\n");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	/* Fixme: BUG? */
+	inb(iobase + UART_MCR);
+
+	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 = bluez_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				printk(KERN_ERR "bt950_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 "bt950_cs: Unknown HCI packet with type 0x%02X received.\n", info->rx_skb->pkt_type);
+				info->hdev.stat.err_rx++;
+
+				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;
+				hci_event_hdr *eh;
+				hci_acl_hdr *ah;
+				hci_sco_hdr *sh;
+
+
+				switch (info->rx_state) {
+
+				case RECV_WAIT_EVENT_HEADER:
+					eh = (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 = (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 = (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 too long */
+		if (boguscount++ > 16)
+			break;
+
+	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
+}
+
+
+static void bt950_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	bt950_info_t *info = dev_inst;
+	unsigned int iobase;
+	int boguscount = 0;
+	int iir, lsr;
+
+	if (!info) {
+		printk(KERN_ERR "bt950_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);
+
+	while (!(iir & UART_IIR_NO_INT)) {
+
+		switch (iir & UART_IIR_ID) {
+		case UART_IIR_RLSI:
+			/* Clear RLSI interrupt */
+			lsr = inb(iobase + UART_LSR);
+			printk(KERN_NOTICE "bt950_cs: RLSI interrupt, LSR=%#x\n", lsr);
+			/* Fixme: we need to process errors ... */
+			break;
+		case UART_IIR_RDI:
+			/* Receive interrupt */
+			bt950_receive(info);
+			break;
+		case UART_IIR_THRI:
+			/* Transmitter ready for data */
+			bt950_write_wakeup(info);
+			break;
+		default:
+			printk(KERN_NOTICE "bt950_cs: Unhandled IIR=%#x\n", iir);
+			break;
+		}
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 100)
+			break;
+
+		iir = inb(iobase + UART_IIR);
+
+	}
+
+	spin_unlock(&(info->lock));
+}
+
+/* ======================== Device specific HCI commands ======================== */
+
+
+static int bt950_hci_set_baud_rate(struct hci_dev *hdev, int baud)
+{
+	bt950_info_t *info = (bt950_info_t *)(hdev->driver_data);
+	struct sk_buff *skb;
+
+	/* Ericsson baud rate command */
+	unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
+
+	if (!(skb = bluez_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+		printk(KERN_WARNING "bt950_cs: Can't allocate mem for new packet.\n");
+		return -1;
+	}
+
+	switch (baud) {
+	case 460800:
+		cmd[4] = 0x00;
+		skb->pkt_type = PKT_BAUD_RATE_460800;
+		break;
+	case 230400:
+		cmd[4] = 0x01;
+		skb->pkt_type = PKT_BAUD_RATE_230400;
+		break;
+	case 115200:
+		cmd[4] = 0x02;
+		skb->pkt_type = PKT_BAUD_RATE_115200;
+		break;
+	case 57600:
+		/* Fall through... */
+	default:
+	    baud = 57600;
+		cmd[4] = 0x03;
+		skb->pkt_type = PKT_BAUD_RATE_57600;
+		break;
+	}
+
+	memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
+
+	skb_queue_tail(&(info->txq), skb);
+
+    printk(KERN_WARNING "bt950_cs: setting baud rate: %d.\n", baud);
+    
+	bt950_write_wakeup(info);
+
+	return 0;
+}
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int bt950_hci_flush(struct hci_dev *hdev)
+{
+	bt950_info_t *info = (bt950_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int bt950_hci_open(struct hci_dev *hdev)
+{
+	bt950_hci_set_baud_rate(hdev, baud_rate);
+	set_bit(HCI_RUNNING, &(hdev->flags));
+
+	return 0;
+}
+
+
+static int bt950_hci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	bt950_hci_flush(hdev);
+
+	return 0;
+}
+
+
+static int bt950_hci_send_frame(struct sk_buff *skb)
+{
+	bt950_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+
+	if (!hdev) {
+		printk(KERN_ERR "bt950_cs: Frame for unknown HCI device (hdev=NULL).");
+		return -ENODEV;
+	}
+
+	info = (bt950_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);
+
+	bt950_write_wakeup(info);
+
+	return 0;
+}
+
+
+static void bt950_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int bt950_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+static int bt950_setup_uart(bt950_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	unsigned char lcr, ier = UART_IER_RDI | UART_IER_RLSI | UART_IER_SLP;
+	unsigned int divisor = 8;	/* Fixme: divisor == 0x0c ??? */
+	unsigned char id1, id2, id3, rev;
+	register int i;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Disable interrupts */
+	outb(0, iobase + UART_IER);
+
+	/* Activate RTS and OUT2 */
+	/* Fixme: is OUT2 used to enable interrupts? */
+	outb(UART_MCR_RTS | UART_MCR_OUT2, iobase + UART_MCR);
+
+	/* Setup the FIFO's */
+	outb(0, iobase + UART_FCR);
+	inb(iobase + UART_RX);
+	outb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
+	     UART_FCR_CLEAR_XMIT | UART_FCR_TRIGGER_14, iobase + UART_FCR);
+
+	/* Disable divisor latch access */
+	lcr = inb(iobase + UART_LCR) & 0x3F;	/* mask out UART_LCR_DLAB and UART_LCR_SBC */
+	outb(lcr, iobase + UART_LCR);
+
+	/* Read up to 4 bytes from RX FIFO */
+	for (i = 0; i < 4; i++) {
+		inb(iobase + UART_RX);
+		if (!(inb(iobase + UART_LSR) & UART_LSR_DR))
+			break;
+	}
+
+	/* Wait if CTS/DSR/DCD changing */
+	for (i = 1; i < 0x3E8; i++) {
+		if (!(inb(iobase + UART_MSR) & UART_MSR_ANY_DELTA))
+			break;
+	}
+
+	/* Enable divisor latch access */
+	outb(lcr | UART_LCR_DLAB, iobase + UART_LCR);
+
+	/* Setup divisor latch */
+	outb(divisor & 0x00FF, iobase + UART_DLL);		/* divisor latch LOW byte */
+	outb((divisor & 0xFF00) >> 8, iobase + UART_DLM);	/* divisor latch HIGH byte */
+
+	/* Disable divisor latch access */
+	outb(lcr, iobase + UART_LCR);
+
+	/* Setup interrupts, enable sleep mode */
+	outb(ier, iobase + UART_IER);	/* we don't want to handle TX interrupts */
+
+	/* Skip pending interrupts */
+	for (i = 0; i < 4; i++) {
+		if (inb(iobase + UART_IIR) & UART_IIR_NO_INT)
+			break;
+	}
+
+	/* 8N1 */
+	lcr = UART_LCR_WLEN8;
+	outb(lcr, iobase + UART_LCR);
+
+	/* Setup CTS/RTS flow control and 950 enhanced mode */
+	outb(UART_LCR_650, iobase + UART_LCR);
+	outb(UART_EFR_CTS | UART_EFR_RTS | UART_EFR_ECB,
+	     iobase + UART_EFR);
+	outb(lcr, iobase + UART_LCR);
+
+	/* Read core id and revision */
+	outb(UART_ACR, iobase + UART_EMSR);
+	outb(UART_ACR_ICRRD, iobase + UART_LSR);	/* enable ICR read access, we don't need to save the old value of ACR */
+
+	outb(UART_ID1, iobase + UART_EMSR);
+	id1 = inb(iobase + UART_LSR);
+
+	outb(UART_ID2, iobase + UART_EMSR);
+	id2 = inb(iobase + UART_LSR);
+
+	outb(UART_ID3, iobase + UART_EMSR);
+	id3 = inb(iobase + UART_LSR);
+
+	outb(UART_REV, iobase + UART_EMSR);
+	rev = inb(iobase + UART_LSR);
+
+	if (id1 != 0x16 || id2 != 0xC9 || id3 != 0x50) {
+		printk(KERN_ERR "bt950_cs: Unknown UART core %02X%02X%02X found.\n", id1, id2, id3);
+		spin_unlock_irqrestore(&(info->lock), flags);
+		return -ENODEV;
+	}
+
+
+	/* Init ICR registers */
+	outb(UART_TTL, iobase + UART_EMSR);
+	outb(TR_TX_INT, iobase + UART_LSR);	/* TX interrupt trigger level (0-127) */
+
+	outb(UART_RTL, iobase + UART_EMSR);
+	outb(TR_RX_INT, iobase + UART_LSR);	/* RX interrupt trigger level (1-127) */
+
+	outb(UART_FCL, iobase + UART_EMSR);
+	outb(TR_CTL_LO, iobase + UART_LSR);	/* auto flow control LOWER trigger level (0-127) */
+
+	outb(UART_FCH, iobase + UART_EMSR);
+	outb(TR_CTL_HI, iobase + UART_LSR);	/* auto flow control HIGH trigger level (1-127) */
+
+	outb(UART_ACR, iobase + UART_EMSR);
+	outb(UART_ACR_TLENB, iobase + UART_LSR);	/* disable ICR read access, enable trigger levels */
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	return 0;
+}
+
+
+static void bt950_stop_uart(bt950_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Disable interrupts */
+	outb(0, iobase + UART_IER);
+
+	/* Set RTS and OUT2 low */
+	outb(0, iobase + UART_MCR);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+}
+
+
+static int bt950_open(bt950_info_t *info)
+{
+	struct hci_dev *hdev;
+	int err;
+
+	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;
+
+	/* Setup hardware */
+	if ((err = bt950_setup_uart(info)) < 0)
+		return err;
+
+	/* 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 = bt950_hci_open;
+	hdev->close = bt950_hci_close;
+	hdev->flush = bt950_hci_flush;
+	hdev->send = bt950_hci_send_frame;
+	hdev->destruct = bt950_hci_destruct;
+	hdev->ioctl = bt950_hci_ioctl;
+
+	if (hci_register_dev(hdev) < 0) {
+		printk(KERN_ERR "bt950_cs: Can't register HCI device %s.\n", hdev->name);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+
+static int bt950_close(bt950_info_t *info)
+{
+	struct hci_dev *hdev = &(info->hdev);
+
+	bt950_hci_close(hdev);
+
+	/* Stop hardware */
+	bt950_stop_uart(info);
+
+	if (hci_unregister_dev(hdev) < 0)
+		printk(KERN_ERR "bt950_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);
+}
+
+
+static dev_link_t *bt950_attach(void)
+{
+	bt950_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;
+
+	link->release.function = &bt950_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 = bt950_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+	link->conf.Present =
+		PRESENT_OPTION | PRESENT_STATUS | PRESENT_PIN_REPLACE |
+		PRESENT_COPY;
+
+	/* 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 = &bt950_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);
+		bt950_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+static void bt950_detach(dev_link_t *link)
+{
+	bt950_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)
+		bt950_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)
+
+static void bt950_config(dev_link_t *link)
+{
+	static ioaddr_t base[4] = { 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	client_handle_t handle = link->handle;
+	bt950_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_ERR "bt950_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 (bt950_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:
+	bt950_release((u_long)link);
+	link->state &= ~DEV_CONFIG_PENDING;
+}
+
+
+static void bt950_release(u_long arg)
+{
+	dev_link_t *link = (dev_link_t *) arg;
+	bt950_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		bt950_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;
+}
+
+
+static int bt950_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	bt950_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			bt950_close(info);
+			link->state |= DEV_RELEASE_PENDING;
+			mod_timer(&link->release, jiffies + HZ / 20);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		bt950_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG) {
+			bt950_stop_uart(info);
+			CardServices(ReleaseConfiguration, link->handle);
+		}
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (link->state & DEV_CONFIG) {
+			CardServices(RequestConfiguration, link->handle, &link->conf);
+			bt950_setup_uart(info);
+		}
+		break;
+	}
+
+	return 0;
+}
+
+
+
+/* ======================== Module initialization ======================== */
+
+
+int __init init_bt950_cs(void)
+{
+	servinfo_t serv;
+	int err;
+
+	CardServices(GetCardServicesInfo, &serv);
+	if (serv.Revision != CS_RELEASE_CODE) {
+		printk(KERN_NOTICE "bt950_cs: Card Services release does not match!\n");
+//		return -1;
+	}
+
+	err = register_pccard_driver(&dev_info, &bt950_attach, &bt950_detach);
+
+	return err;
+}
+
+
+void __exit exit_bt950_cs(void)
+{
+	unregister_pccard_driver(&dev_info);
+
+	while (dev_list != NULL)
+		bt950_detach(dev_list);
+}
+
+
+module_init(init_bt950_cs);
+module_exit(exit_bt950_cs);
+
+EXPORT_NO_SYMBOLS;
diff -Nur linux-orig/drivers/bluetooth/Config.in linux/drivers/bluetooth/Config.in
--- linux-orig/drivers/bluetooth/Config.in	2004-02-16 08:45:33.000000000 +0300
+++ linux/drivers/bluetooth/Config.in	2004-02-16 08:50:36.000000000 +0300
@@ -21,7 +21,7 @@
 
 dep_tristate 'HCI DTL1 (PC Card) driver' CONFIG_BLUEZ_HCIDTL1 $CONFIG_PCMCIA $CONFIG_BLUEZ
 
-dep_tristate 'HCI BT3C (PC Card) driver' CONFIG_BLUEZ_HCIBT3C $CONFIG_PCMCIA $CONFIG_BLUEZ
+# dep_tristate 'HCI BT3C (PC Card) driver' CONFIG_BLUEZ_HCIBT3C $CONFIG_PCMCIA $CONFIG_BLUEZ
 
 dep_tristate 'HCI BlueCard (PC Card) driver' CONFIG_BLUEZ_HCIBLUECARD $CONFIG_PCMCIA $CONFIG_BLUEZ
 
@@ -29,5 +29,7 @@
 
 dep_tristate 'HCI VHCI (Virtual HCI device) driver' CONFIG_BLUEZ_HCIVHCI $CONFIG_BLUEZ
 
+dep_tristate 'HCI BT950 (BT950 device) driver' CONFIG_BLUEZ_BT950 $CONFIG_BLUEZ
+
 endmenu
 
diff -Nur linux-orig/drivers/bluetooth/Makefile linux/drivers/bluetooth/Makefile
--- linux-orig/drivers/bluetooth/Makefile	2004-02-16 08:45:33.000000000 +0300
+++ linux/drivers/bluetooth/Makefile	2004-02-16 08:50:47.000000000 +0300
@@ -17,10 +17,12 @@
 obj-$(CONFIG_BLUEZ_HCIBFUSB)	+= bfusb.o
 
 obj-$(CONFIG_BLUEZ_HCIDTL1)	+= dtl1_cs.o
-obj-$(CONFIG_BLUEZ_HCIBT3C)	+= bt3c_cs.o
+# obj-$(CONFIG_BLUEZ_HCIBT3C)	+= bt3c_cs.o
 obj-$(CONFIG_BLUEZ_HCIBLUECARD)	+= bluecard_cs.o
 obj-$(CONFIG_BLUEZ_HCIBTUART)	+= btuart_cs.o
 
+obj-$(CONFIG_BLUEZ_BT950)	+= bt950_cs.o
+
 include $(TOPDIR)/Rules.make
 
 hci_uart.o: $(uart-y)