[linux-2.6-block.git] / drivers / bluetooth / dtl1_cs.c

/*
 *
 *  A driver for Nokia Connectivity Card DTL-1 devices
 *
 *  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/delay.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/moduleparam.h>

#include <linux/skbuff.h>
#include <linux/string.h>
#include <linux/serial.h>
#include <linux/serial_reg.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/io.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 ======================== */


MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
MODULE_LICENSE("GPL");


/* ======================== Local structures ======================== */


typedef struct dtl1_info_t {
	dev_link_t link;
	dev_node_t node;

	struct hci_dev *hdev;

	spinlock_t lock;		/* For serializing operations */

	unsigned long flowmask;		/* HCI flow mask */
	int ri_latch;

	struct sk_buff_head txq;
	unsigned long tx_state;

	unsigned long rx_state;
	unsigned long rx_count;
	struct sk_buff *rx_skb;
} dtl1_info_t;


static void dtl1_config(dev_link_t *link);
static void dtl1_release(dev_link_t *link);
static int dtl1_event(event_t event, int priority, event_callback_args_t *args);

static dev_info_t dev_info = "dtl1_cs";

static dev_link_t *dtl1_attach(void);
static void dtl1_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_NSH   0
#define RECV_WAIT_DATA  1


typedef struct {
	u8 type;
	u8 zero;
	u16 len;
} __attribute__ ((packed)) nsh_t;	/* Nokia Specific Header */

#define NSHL  4				/* Nokia Specific Header Length */


/* ======================== Interrupt handling ======================== */


static int dtl1_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 dtl1_write_wakeup(dtl1_info_t *info)
{
	if (!info) {
		BT_ERR("Unknown device");
		return;
	}

	if (test_bit(XMIT_WAITING, &(info->tx_state))) {
		set_bit(XMIT_WAKEUP, &(info->tx_state));
		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 = dtl1_write(iobase, 32, skb->data, skb->len);

		if (len == skb->len) {
			set_bit(XMIT_WAITING, &(info->tx_state));
			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 dtl1_control(dtl1_info_t *info, struct sk_buff *skb)
{
	u8 flowmask = *(u8 *)skb->data;
	int i;

	printk(KERN_INFO "Bluetooth: Nokia control data =");
	for (i = 0; i < skb->len; i++) {
		printk(" %02x", skb->data[i]);
	}
	printk("\n");

	/* transition to active state */
	if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
		clear_bit(XMIT_WAITING, &(info->tx_state));
		dtl1_write_wakeup(info);
	}

	info->flowmask = flowmask;

	kfree_skb(skb);
}


static void dtl1_receive(dtl1_info_t *info)
{
	unsigned int iobase;
	nsh_t *nsh;
	int boguscount = 0;

	if (!info) {
		BT_ERR("Unknown device");
		return;
	}

	iobase = info->link.io.BasePort1;

	do {
		info->hdev->stat.byte_rx++;

		/* Allocate packet */
		if (info->rx_skb == NULL)
			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
				BT_ERR("Can't allocate mem for new packet");
				info->rx_state = RECV_WAIT_NSH;
				info->rx_count = NSHL;
				return;
			}

		*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
		nsh = (nsh_t *)info->rx_skb->data;

		info->rx_count--;

		if (info->rx_count == 0) {

			switch (info->rx_state) {
			case RECV_WAIT_NSH:
				info->rx_state = RECV_WAIT_DATA;
				info->rx_count = nsh->len + (nsh->len & 0x0001);
				break;
			case RECV_WAIT_DATA:
				bt_cb(info->rx_skb)->pkt_type = nsh->type;

				/* remove PAD byte if it exists */
				if (nsh->len & 0x0001) {
					info->rx_skb->tail--;
					info->rx_skb->len--;
				}

				/* remove NSH */
				skb_pull(info->rx_skb, NSHL);

				switch (bt_cb(info->rx_skb)->pkt_type) {
				case 0x80:
					/* control data for the Nokia Card */
					dtl1_control(info, info->rx_skb);
					break;
				case 0x82:
				case 0x83:
				case 0x84:
					/* send frame to the HCI layer */
					info->rx_skb->dev = (void *) info->hdev;
					bt_cb(info->rx_skb)->pkt_type &= 0x0f;
					hci_recv_frame(info->rx_skb);
					break;
				default:
					/* unknown packet */
					BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
					kfree_skb(info->rx_skb);
					break;
				}

				info->rx_state = RECV_WAIT_NSH;
				info->rx_count = NSHL;
				info->rx_skb = NULL;
				break;
			}

		}

		/* Make sure we don't stay here too long */
		if (boguscount++ > 32)
			break;

	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
}


static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
{
	dtl1_info_t *info = dev_inst;
	unsigned int iobase;
	unsigned char msr;
	int boguscount = 0;
	int iir, lsr;

	if (!info || !info->hdev) {
		BT_ERR("Call of irq %d for unknown device", irq);
		return IRQ_NONE;
	}

	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:
			BT_ERR("RLSI");
			break;
		case UART_IIR_RDI:
			/* Receive interrupt */
			dtl1_receive(info);
			break;
		case UART_IIR_THRI:
			if (lsr & UART_LSR_THRE) {
				/* Transmitter ready for data */
				dtl1_write_wakeup(info);
			}
			break;
		default:
			BT_ERR("Unhandled IIR=%#x", iir);
			break;
		}

		/* Make sure we don't stay here too long */
		if (boguscount++ > 100)
			break;

		iir = inb(iobase + UART_IIR) & UART_IIR_ID;

	}

	msr = inb(iobase + UART_MSR);

	if (info->ri_latch ^ (msr & UART_MSR_RI)) {
		info->ri_latch = msr & UART_MSR_RI;
		clear_bit(XMIT_WAITING, &(info->tx_state));
		dtl1_write_wakeup(info);
	}

	spin_unlock(&(info->lock));

	return IRQ_HANDLED;
}


/* ======================== HCI interface ======================== */


static int dtl1_hci_open(struct hci_dev *hdev)
{
	set_bit(HCI_RUNNING, &(hdev->flags));

	return 0;
}


static int dtl1_hci_flush(struct hci_dev *hdev)
{
	dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data);

	/* Drop TX queue */
	skb_queue_purge(&(info->txq));

	return 0;
}


static int dtl1_hci_close(struct hci_dev *hdev)
{
	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
		return 0;

	dtl1_hci_flush(hdev);

	return 0;
}


static int dtl1_hci_send_frame(struct sk_buff *skb)
{
	dtl1_info_t *info;
	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
	struct sk_buff *s;
	nsh_t nsh;

	if (!hdev) {
		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
		return -ENODEV;
	}

	info = (dtl1_info_t *)(hdev->driver_data);

	switch (bt_cb(skb)->pkt_type) {
	case HCI_COMMAND_PKT:
		hdev->stat.cmd_tx++;
		nsh.type = 0x81;
		break;
	case HCI_ACLDATA_PKT:
		hdev->stat.acl_tx++;
		nsh.type = 0x82;
		break;
	case HCI_SCODATA_PKT:
		hdev->stat.sco_tx++;
		nsh.type = 0x83;
		break;
	};

	nsh.zero = 0;
	nsh.len = skb->len;

	s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
	skb_reserve(s, NSHL);
	memcpy(skb_put(s, skb->len), skb->data, skb->len);
	if (skb->len & 0x0001)
		*skb_put(s, 1) = 0;	/* PAD */

	/* Prepend skb with Nokia frame header and queue */
	memcpy(skb_push(s, NSHL), &nsh, NSHL);
	skb_queue_tail(&(info->txq), s);

	dtl1_write_wakeup(info);

	kfree_skb(skb);

	return 0;
}


static void dtl1_hci_destruct(struct hci_dev *hdev)
{
}


static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
{
	return -ENOIOCTLCMD;
}


/* ======================== Card services HCI interaction ======================== */


static int dtl1_open(dtl1_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_NSH;
	info->rx_count = NSHL;
	info->rx_skb = NULL;

	set_bit(XMIT_WAITING, &(info->tx_state));

	/* Initialize HCI device */
	hdev = hci_alloc_dev();
	if (!hdev) {
		BT_ERR("Can't allocate HCI device");
		return -ENOMEM;
	}

	info->hdev = hdev;

	hdev->type = HCI_PCCARD;
	hdev->driver_data = info;

	hdev->open     = dtl1_hci_open;
	hdev->close    = dtl1_hci_close;
	hdev->flush    = dtl1_hci_flush;
	hdev->send     = dtl1_hci_send_frame;
	hdev->destruct = dtl1_hci_destruct;
	hdev->ioctl    = dtl1_hci_ioctl;

	hdev->owner = THIS_MODULE;

	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);

	info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI;

	/* Turn on interrupts */
	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);

	spin_unlock_irqrestore(&(info->lock), flags);

	/* Timeout before it is safe to send the first HCI packet */
	msleep(2000);

	/* Register HCI device */
	if (hci_register_dev(hdev) < 0) {
		BT_ERR("Can't register HCI device");
		info->hdev = NULL;
		hci_free_dev(hdev);
		return -ENODEV;
	}

	return 0;
}


static int dtl1_close(dtl1_info_t *info)
{
	unsigned long flags;
	unsigned int iobase = info->link.io.BasePort1;
	struct hci_dev *hdev = info->hdev;

	if (!hdev)
		return -ENODEV;

	dtl1_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)
		BT_ERR("Can't unregister HCI device %s", hdev->name);

	hci_free_dev(hdev);

	return 0;
}

static dev_link_t *dtl1_attach(void)
{
	dtl1_info_t *info;
	client_reg_t client_reg;
	dev_link_t *link;
	int ret;

	/* Create new info device */
	info = kzalloc(sizeof(*info), GFP_KERNEL);
	if (!info)
		return NULL;

	link = &info->link;
	link->priv = info;

	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_LEVEL_ID;

	link->irq.Handler = dtl1_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.Version = 0x0210;
	client_reg.event_callback_args.client_data = link;

	ret = pcmcia_register_client(&link->handle, &client_reg);
	if (ret != CS_SUCCESS) {
		cs_error(link->handle, RegisterClient, ret);
		dtl1_detach(link);
		return NULL;
	}

	return link;
}


static void dtl1_detach(dev_link_t *link)
{
	dtl1_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;

	if (link->state & DEV_CONFIG)
		dtl1_release(link);

	if (link->handle) {
		ret = pcmcia_deregister_client(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(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
{
	int i;

	i = pcmcia_get_tuple_data(handle, tuple);
	if (i != CS_SUCCESS)
		return i;

	return pcmcia_parse_tuple(handle, tuple, parse);
}

static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
{
	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
		return CS_NO_MORE_ITEMS;
	return get_tuple(handle, tuple, parse);
}

static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
{
	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
		return CS_NO_MORE_ITEMS;
	return get_tuple(handle, tuple, parse);
}

static void dtl1_config(dev_link_t *link)
{
	client_handle_t handle = link->handle;
	dtl1_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, 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 = pcmcia_get_configuration_info(handle, &config);
	link->conf.Vcc = config.Vcc;

	tuple.TupleData = (cisdata_t *)buf;
	tuple.TupleOffset = 0;
	tuple.TupleDataMax = 255;
	tuple.Attributes = 0;
	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;

	/* Look for a generic full-sized window */
	link->io.NumPorts1 = 8;
	i = first_tuple(handle, &tuple, &parse);
	while (i != CS_NO_MORE_ITEMS) {
		if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
			link->conf.ConfigIndex = cf->index;
			link->io.BasePort1 = cf->io.win[0].base;
			link->io.NumPorts1 = cf->io.win[0].len;	/*yo */
			link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
			i = pcmcia_request_io(link->handle, &link->io);
			if (i == CS_SUCCESS)
				break;
		}
		i = next_tuple(handle, &tuple, &parse);
	}

	if (i != CS_SUCCESS) {
		cs_error(link->handle, RequestIO, i);
		goto failed;
	}

	i = pcmcia_request_irq(link->handle, &link->irq);
	if (i != CS_SUCCESS) {
		cs_error(link->handle, RequestIRQ, i);
		link->irq.AssignedIRQ = 0;
	}

	i = pcmcia_request_configuration(link->handle, &link->conf);
	if (i != CS_SUCCESS) {
		cs_error(link->handle, RequestConfiguration, i);
		goto failed;
	}

	if (dtl1_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:
	dtl1_release(link);
}


static void dtl1_release(dev_link_t *link)
{
	dtl1_info_t *info = link->priv;

	if (link->state & DEV_PRESENT)
		dtl1_close(info);

	link->dev = NULL;

	pcmcia_release_configuration(link->handle);
	pcmcia_release_io(link->handle, &link->io);
	pcmcia_release_irq(link->handle, &link->irq);

	link->state &= ~DEV_CONFIG;
}

static int dtl1_suspend(struct pcmcia_device *dev)
{
	dev_link_t *link = dev_to_instance(dev);

	link->state |= DEV_SUSPEND;
	if (link->state & DEV_CONFIG)
		pcmcia_release_configuration(link->handle);

	return 0;
}

static int dtl1_resume(struct pcmcia_device *dev)
{
	dev_link_t *link = dev_to_instance(dev);

	link->state &= ~DEV_SUSPEND;
	if (DEV_OK(link))
		pcmcia_request_configuration(link->handle, &link->conf);

	return 0;
}

static int dtl1_event(event_t event, int priority, event_callback_args_t *args)
{
	dev_link_t *link = args->client_data;
	dtl1_info_t *info = link->priv;

	switch (event) {
	case CS_EVENT_CARD_REMOVAL:
		link->state &= ~DEV_PRESENT;
		if (link->state & DEV_CONFIG) {
			dtl1_close(info);
			dtl1_release(link);
		}
		break;
	case CS_EVENT_CARD_INSERTION:
		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
		dtl1_config(link);
		break;
	}

	return 0;
}

static struct pcmcia_device_id dtl1_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("Nokia Mobile Phones", "DTL-1", 0xe1bfdd64, 0xe168480d),
	PCMCIA_DEVICE_PROD_ID12("Socket", "CF", 0xb38bcc2e, 0x44ebf863),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, dtl1_ids);

static struct pcmcia_driver dtl1_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
		.name	= "dtl1_cs",
	},
	.attach		= dtl1_attach,
	.event		= dtl1_event,
	.detach		= dtl1_detach,
	.id_table	= dtl1_ids,
	.suspend	= dtl1_suspend,
	.resume		= dtl1_resume,
};

static int __init init_dtl1_cs(void)
{
	return pcmcia_register_driver(&dtl1_driver);
}


static void __exit exit_dtl1_cs(void)
{
	pcmcia_unregister_driver(&dtl1_driver);
	BUG_ON(dev_list != NULL);
}

module_init(init_dtl1_cs);
module_exit(exit_dtl1_cs);
Commit	Line	Data
1da177e4 LT	1	/*
	2	*
	3	* A driver for Nokia Connectivity Card DTL-1 devices
	4	*
	5	* Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
	6	*
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation;
	11	*
	12	* Software distributed under the License is distributed on an "AS
	13	* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	14	* implied. See the License for the specific language governing
	15	* rights and limitations under the License.
	16	*
	17	* The initial developer of the original code is David A. Hinds
	18	* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
	19	* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
	20	*
	21	*/
	22
	23	#include <linux/config.h>
	24	#include <linux/module.h>
	25
	26	#include <linux/kernel.h>
	27	#include <linux/init.h>
	28	#include <linux/slab.h>
	29	#include <linux/types.h>
	30	#include <linux/sched.h>
	31	#include <linux/delay.h>
	32	#include <linux/errno.h>
	33	#include <linux/ptrace.h>
	34	#include <linux/ioport.h>
	35	#include <linux/spinlock.h>
	36	#include <linux/moduleparam.h>
	37
	38	#include <linux/skbuff.h>
	39	#include <linux/string.h>
	40	#include <linux/serial.h>
	41	#include <linux/serial_reg.h>
	42	#include <linux/bitops.h>
	43	#include <asm/system.h>
	44	#include <asm/io.h>
	45
1da177e4 LT	46	#include <pcmcia/cs_types.h>
	47	#include <pcmcia/cs.h>
	48	#include <pcmcia/cistpl.h>
	49	#include <pcmcia/ciscode.h>
	50	#include <pcmcia/ds.h>
	51	#include <pcmcia/cisreg.h>
	52
	53	#include <net/bluetooth/bluetooth.h>
	54	#include <net/bluetooth/hci_core.h>
	55
	56
	57
	58	/* ======================== Module parameters ======================== */
	59
	60
	61	MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
	62	MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
	63	MODULE_LICENSE("GPL");
	64
	65
	66
	67	/* ======================== Local structures ======================== */
	68
	69
	70	typedef struct dtl1_info_t {
	71	dev_link_t link;
	72	dev_node_t node;
	73
	74	struct hci_dev *hdev;
	75
	76	spinlock_t lock; /* For serializing operations */
	77
	78	unsigned long flowmask; /* HCI flow mask */
	79	int ri_latch;
	80
	81	struct sk_buff_head txq;
	82	unsigned long tx_state;
	83
	84	unsigned long rx_state;
	85	unsigned long rx_count;
	86	struct sk_buff *rx_skb;
	87	} dtl1_info_t;
	88
	89
	90	static void dtl1_config(dev_link_t *link);
	91	static void dtl1_release(dev_link_t *link);
	92	static int dtl1_event(event_t event, int priority, event_callback_args_t *args);
	93
	94	static dev_info_t dev_info = "dtl1_cs";
	95
	96	static dev_link_t *dtl1_attach(void);
	97	static void dtl1_detach(dev_link_t *);
	98
	99	static dev_link_t *dev_list = NULL;
	100
	101
	102	/* Transmit states */
	103	#define XMIT_SENDING 1
	104	#define XMIT_WAKEUP 2
	105	#define XMIT_WAITING 8
	106
	107	/* Receiver States */
	108	#define RECV_WAIT_NSH 0
	109	#define RECV_WAIT_DATA 1
110
111
112	typedef struct {
113	u8 type;
114	u8 zero;
115	u16 len;
116	} __attribute__ ((packed)) nsh_t; /* Nokia Specific Header */
117
118	#define NSHL 4 /* Nokia Specific Header Length */
119
120
121
122	/* ======================== Interrupt handling ======================== */
123
124
125	static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
126	{
127	int actual = 0;
128
129	/* Tx FIFO should be empty */
130	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
131	return 0;
132
133	/* Fill FIFO with current frame */
134	while ((fifo_size-- > 0) && (actual < len)) {
135	/* Transmit next byte */
136	outb(buf[actual], iobase + UART_TX);
137	actual++;
138	}
139
140	return actual;
141	}
142
143
144	static void dtl1_write_wakeup(dtl1_info_t *info)
145	{
146	if (!info) {
147	BT_ERR("Unknown device");
148	return;
149	}
150
151	if (test_bit(XMIT_WAITING, &(info->tx_state))) {
152	set_bit(XMIT_WAKEUP, &(info->tx_state));
153	return;
154	}
155
156	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
157	set_bit(XMIT_WAKEUP, &(info->tx_state));
158	return;
159	}
160
161	do {
162	register unsigned int iobase = info->link.io.BasePort1;
163	register struct sk_buff *skb;
164	register int len;
165
166	clear_bit(XMIT_WAKEUP, &(info->tx_state));
167
168	if (!(info->link.state & DEV_PRESENT))
169	return;
170
171	if (!(skb = skb_dequeue(&(info->txq))))
172	break;
173
174	/* Send frame */
175	len = dtl1_write(iobase, 32, skb->data, skb->len);
176
177	if (len == skb->len) {
178	set_bit(XMIT_WAITING, &(info->tx_state));
179	kfree_skb(skb);
180	} else {
181	skb_pull(skb, len);
182	skb_queue_head(&(info->txq), skb);
183	}
184
185	info->hdev->stat.byte_tx += len;
186
187	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
188
189	clear_bit(XMIT_SENDING, &(info->tx_state));
190	}
191
192
193	static void dtl1_control(dtl1_info_t info, struct sk_buff skb)
194	{
195	u8 flowmask = (u8 )skb->data;
196	int i;
197
198	printk(KERN_INFO "Bluetooth: Nokia control data =");
199	for (i = 0; i < skb->len; i++) {
200	printk(" %02x", skb->data[i]);
201	}
202	printk("\n");
203
204	/* transition to active state */
205	if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
206	clear_bit(XMIT_WAITING, &(info->tx_state));
207	dtl1_write_wakeup(info);
208	}
209
210	info->flowmask = flowmask;
211
212	kfree_skb(skb);
213	}
214
215
216	static void dtl1_receive(dtl1_info_t *info)
217	{
218	unsigned int iobase;
219	nsh_t *nsh;
220	int boguscount = 0;
221
222	if (!info) {
223	BT_ERR("Unknown device");
224	return;
225	}
226
227	iobase = info->link.io.BasePort1;
228
229	do {
230	info->hdev->stat.byte_rx++;
231
232	/* Allocate packet */
233	if (info->rx_skb == NULL)
234	if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
235	BT_ERR("Can't allocate mem for new packet");
236	info->rx_state = RECV_WAIT_NSH;
237	info->rx_count = NSHL;
238	return;
239	}
240
241	*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
242	nsh = (nsh_t *)info->rx_skb->data;
243
244	info->rx_count--;
245
246	if (info->rx_count == 0) {
247
248	switch (info->rx_state) {
249	case RECV_WAIT_NSH:
250	info->rx_state = RECV_WAIT_DATA;
251	info->rx_count = nsh->len + (nsh->len & 0x0001);
252	break;
253	case RECV_WAIT_DATA:
0d48d939	254	bt_cb(info->rx_skb)->pkt_type = nsh->type;
1da177e4 LT	255
	256	/* remove PAD byte if it exists */
	257	if (nsh->len & 0x0001) {
	258	info->rx_skb->tail--;
	259	info->rx_skb->len--;
	260	}
	261
	262	/* remove NSH */
	263	skb_pull(info->rx_skb, NSHL);
	264
0d48d939	265	switch (bt_cb(info->rx_skb)->pkt_type) {
1da177e4 LT	266	case 0x80:
	267	/* control data for the Nokia Card */
	268	dtl1_control(info, info->rx_skb);
	269	break;
	270	case 0x82:
	271	case 0x83:
	272	case 0x84:
	273	/* send frame to the HCI layer */
	274	info->rx_skb->dev = (void *) info->hdev;
0d48d939	275	bt_cb(info->rx_skb)->pkt_type &= 0x0f;
1da177e4 LT	276	hci_recv_frame(info->rx_skb);
	277	break;
	278	default:
	279	/* unknown packet */
0d48d939	280	BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
1da177e4 LT	281	kfree_skb(info->rx_skb);
	282	break;
	283	}
	284
	285	info->rx_state = RECV_WAIT_NSH;
	286	info->rx_count = NSHL;
	287	info->rx_skb = NULL;
	288	break;
	289	}
	290
	291	}
	292
	293	/* Make sure we don't stay here too long */
	294	if (boguscount++ > 32)
	295	break;
	296
	297	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
	298	}
	299
	300
	301	static irqreturn_t dtl1_interrupt(int irq, void dev_inst, struct pt_regs regs)
	302	{
	303	dtl1_info_t *info = dev_inst;
	304	unsigned int iobase;
	305	unsigned char msr;
	306	int boguscount = 0;
	307	int iir, lsr;
	308
	309	if (!info \|\| !info->hdev) {
	310	BT_ERR("Call of irq %d for unknown device", irq);
	311	return IRQ_NONE;
	312	}
	313
	314	iobase = info->link.io.BasePort1;
	315
	316	spin_lock(&(info->lock));
	317
	318	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
	319	while (iir) {
	320
	321	/* Clear interrupt */
	322	lsr = inb(iobase + UART_LSR);
	323
	324	switch (iir) {
	325	case UART_IIR_RLSI:
	326	BT_ERR("RLSI");
	327	break;
	328	case UART_IIR_RDI:
	329	/* Receive interrupt */
	330	dtl1_receive(info);
	331	break;
	332	case UART_IIR_THRI:
	333	if (lsr & UART_LSR_THRE) {
	334	/* Transmitter ready for data */
	335	dtl1_write_wakeup(info);
	336	}
	337	break;
	338	default:
	339	BT_ERR("Unhandled IIR=%#x", iir);
	340	break;
	341	}
	342
	343	/* Make sure we don't stay here too long */
	344	if (boguscount++ > 100)
345	break;
346
347	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
348
349	}
350
351	msr = inb(iobase + UART_MSR);
352
353	if (info->ri_latch ^ (msr & UART_MSR_RI)) {
354	info->ri_latch = msr & UART_MSR_RI;
355	clear_bit(XMIT_WAITING, &(info->tx_state));
356	dtl1_write_wakeup(info);
357	}
358
359	spin_unlock(&(info->lock));
360
361	return IRQ_HANDLED;
362	}
363
364
365
366	/* ======================== HCI interface ======================== */
367
368
369	static int dtl1_hci_open(struct hci_dev *hdev)
370	{
371	set_bit(HCI_RUNNING, &(hdev->flags));
372
373	return 0;
374	}
375
376
377	static int dtl1_hci_flush(struct hci_dev *hdev)
378	{
379	dtl1_info_t info = (dtl1_info_t )(hdev->driver_data);
380
381	/* Drop TX queue */
382	skb_queue_purge(&(info->txq));
383
384	return 0;
385	}
386
387
388	static int dtl1_hci_close(struct hci_dev *hdev)
389	{
390	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
391	return 0;
392
393	dtl1_hci_flush(hdev);
394
395	return 0;
396	}
397
398
399	static int dtl1_hci_send_frame(struct sk_buff *skb)
400	{
401	dtl1_info_t *info;
402	struct hci_dev hdev = (struct hci_dev )(skb->dev);
403	struct sk_buff *s;
404	nsh_t nsh;
405
406	if (!hdev) {
407	BT_ERR("Frame for unknown HCI device (hdev=NULL)");
408	return -ENODEV;
409	}
410
411	info = (dtl1_info_t *)(hdev->driver_data);
412
0d48d939	413	switch (bt_cb(skb)->pkt_type) {
1da177e4 LT	414	case HCI_COMMAND_PKT:
	415	hdev->stat.cmd_tx++;
	416	nsh.type = 0x81;
	417	break;
	418	case HCI_ACLDATA_PKT:
	419	hdev->stat.acl_tx++;
	420	nsh.type = 0x82;
	421	break;
	422	case HCI_SCODATA_PKT:
	423	hdev->stat.sco_tx++;
	424	nsh.type = 0x83;
	425	break;
	426	};
	427
	428	nsh.zero = 0;
	429	nsh.len = skb->len;
	430
	431	s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
	432	skb_reserve(s, NSHL);
	433	memcpy(skb_put(s, skb->len), skb->data, skb->len);
	434	if (skb->len & 0x0001)
	435	skb_put(s, 1) = 0; / PAD */
	436
	437	/* Prepend skb with Nokia frame header and queue */
	438	memcpy(skb_push(s, NSHL), &nsh, NSHL);
	439	skb_queue_tail(&(info->txq), s);
	440
	441	dtl1_write_wakeup(info);
	442
	443	kfree_skb(skb);
	444
	445	return 0;
	446	}
	447
	448
	449	static void dtl1_hci_destruct(struct hci_dev *hdev)
	450	{
	451	}
	452
	453
	454	static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
	455	{
	456	return -ENOIOCTLCMD;
	457	}
	458
	459
	460
	461	/* ======================== Card services HCI interaction ======================== */
	462
	463
	464	static int dtl1_open(dtl1_info_t *info)
	465	{
	466	unsigned long flags;
	467	unsigned int iobase = info->link.io.BasePort1;
	468	struct hci_dev *hdev;
	469
	470	spin_lock_init(&(info->lock));
	471
	472	skb_queue_head_init(&(info->txq));
	473
	474	info->rx_state = RECV_WAIT_NSH;
	475	info->rx_count = NSHL;
	476	info->rx_skb = NULL;
	477
478	set_bit(XMIT_WAITING, &(info->tx_state));
479
480	/* Initialize HCI device */
481	hdev = hci_alloc_dev();
482	if (!hdev) {
483	BT_ERR("Can't allocate HCI device");
484	return -ENOMEM;
485	}
486
487	info->hdev = hdev;
488
489	hdev->type = HCI_PCCARD;
490	hdev->driver_data = info;
491
492	hdev->open = dtl1_hci_open;
493	hdev->close = dtl1_hci_close;
494	hdev->flush = dtl1_hci_flush;
495	hdev->send = dtl1_hci_send_frame;
496	hdev->destruct = dtl1_hci_destruct;
497	hdev->ioctl = dtl1_hci_ioctl;
498
499	hdev->owner = THIS_MODULE;
500
501	spin_lock_irqsave(&(info->lock), flags);
502
503	/* Reset UART */
504	outb(0, iobase + UART_MCR);
505
506	/* Turn off interrupts */
507	outb(0, iobase + UART_IER);
508
509	/* Initialize UART */
510	outb(UART_LCR_WLEN8, iobase + UART_LCR); /* Reset DLAB */
511	outb((UART_MCR_DTR \| UART_MCR_RTS \| UART_MCR_OUT2), iobase + UART_MCR);
512
513	info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI;
514
515	/* Turn on interrupts */
516	outb(UART_IER_RLSI \| UART_IER_RDI \| UART_IER_THRI, iobase + UART_IER);
517
518	spin_unlock_irqrestore(&(info->lock), flags);
519
520	/* Timeout before it is safe to send the first HCI packet */
521	msleep(2000);
522
523	/* Register HCI device */
524	if (hci_register_dev(hdev) < 0) {
525	BT_ERR("Can't register HCI device");
526	info->hdev = NULL;
527	hci_free_dev(hdev);
528	return -ENODEV;
529	}
530
531	return 0;
532	}
533
534
535	static int dtl1_close(dtl1_info_t *info)
536	{
537	unsigned long flags;
538	unsigned int iobase = info->link.io.BasePort1;
539	struct hci_dev *hdev = info->hdev;
540
541	if (!hdev)
542	return -ENODEV;
543
544	dtl1_hci_close(hdev);
545
546	spin_lock_irqsave(&(info->lock), flags);
547
548	/* Reset UART */
549	outb(0, iobase + UART_MCR);
550
551	/* Turn off interrupts */
552	outb(0, iobase + UART_IER);
553
554	spin_unlock_irqrestore(&(info->lock), flags);
555
556	if (hci_unregister_dev(hdev) < 0)
557	BT_ERR("Can't unregister HCI device %s", hdev->name);
558
559	hci_free_dev(hdev);
560
561	return 0;
562	}
563
564	static dev_link_t *dtl1_attach(void)
565	{
566	dtl1_info_t *info;
567	client_reg_t client_reg;
568	dev_link_t *link;
569	int ret;
570
571	/* Create new info device */
089b1dbb	572	info = kzalloc(sizeof(*info), GFP_KERNEL);
1da177e4 LT	573	if (!info)
1da177e4 LT	574	return NULL;
1da177e4 LT	575
	576	link = &info->link;
	577	link->priv = info;
	578
	579	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	580	link->io.NumPorts1 = 8;
	581	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE \| IRQ_HANDLE_PRESENT;
	582	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
	583
	584	link->irq.Handler = dtl1_interrupt;
	585	link->irq.Instance = info;
	586
	587	link->conf.Attributes = CONF_ENABLE_IRQ;
	588	link->conf.Vcc = 50;
	589	link->conf.IntType = INT_MEMORY_AND_IO;
	590
	591	/* Register with Card Services */
	592	link->next = dev_list;
	593	dev_list = link;
	594	client_reg.dev_info = &dev_info;
1da177e4 LT	595	client_reg.Version = 0x0210;
	596	client_reg.event_callback_args.client_data = link;
	597
	598	ret = pcmcia_register_client(&link->handle, &client_reg);
	599	if (ret != CS_SUCCESS) {
	600	cs_error(link->handle, RegisterClient, ret);
	601	dtl1_detach(link);
	602	return NULL;
	603	}
	604
	605	return link;
	606	}
	607
	608
	609	static void dtl1_detach(dev_link_t *link)
	610	{
	611	dtl1_info_t *info = link->priv;
	612	dev_link_t **linkp;
	613	int ret;
	614
	615	/* Locate device structure */
	616	for (linkp = &dev_list; linkp; linkp = &(linkp)->next)
	617	if (*linkp == link)
	618	break;
	619
	620	if (*linkp == NULL)
	621	return;
	622
	623	if (link->state & DEV_CONFIG)
	624	dtl1_release(link);
	625
	626	if (link->handle) {
	627	ret = pcmcia_deregister_client(link->handle);
	628	if (ret != CS_SUCCESS)
	629	cs_error(link->handle, DeregisterClient, ret);
	630	}
	631
	632	/* Unlink device structure, free bits */
	633	*linkp = link->next;
	634
	635	kfree(info);
	636	}
	637
	638	static int get_tuple(client_handle_t handle, tuple_t tuple, cisparse_t parse)
	639	{
	640	int i;
	641
	642	i = pcmcia_get_tuple_data(handle, tuple);
	643	if (i != CS_SUCCESS)
	644	return i;
	645
	646	return pcmcia_parse_tuple(handle, tuple, parse);
	647	}
	648
	649	static int first_tuple(client_handle_t handle, tuple_t tuple, cisparse_t parse)
	650	{
	651	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
	652	return CS_NO_MORE_ITEMS;
	653	return get_tuple(handle, tuple, parse);
	654	}
	655
	656	static int next_tuple(client_handle_t handle, tuple_t tuple, cisparse_t parse)
	657	{
	658	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
659	return CS_NO_MORE_ITEMS;
660	return get_tuple(handle, tuple, parse);
661	}
662
663	static void dtl1_config(dev_link_t *link)
664	{
665	client_handle_t handle = link->handle;
666	dtl1_info_t *info = link->priv;
667	tuple_t tuple;
668	u_short buf[256];
669	cisparse_t parse;
670	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
671	config_info_t config;
672	int i, last_ret, last_fn;
673
674	tuple.TupleData = (cisdata_t *)buf;
675	tuple.TupleOffset = 0;
676	tuple.TupleDataMax = 255;
677	tuple.Attributes = 0;
678
679	/* Get configuration register information */
680	tuple.DesiredTuple = CISTPL_CONFIG;
681	last_ret = first_tuple(handle, &tuple, &parse);
682	if (last_ret != CS_SUCCESS) {
683	last_fn = ParseTuple;
684	goto cs_failed;
685	}
686	link->conf.ConfigBase = parse.config.base;
687	link->conf.Present = parse.config.rmask[0];
688
689	/* Configure card */
690	link->state \|= DEV_CONFIG;
691	i = pcmcia_get_configuration_info(handle, &config);
692	link->conf.Vcc = config.Vcc;
693
694	tuple.TupleData = (cisdata_t *)buf;
695	tuple.TupleOffset = 0;
696	tuple.TupleDataMax = 255;
697	tuple.Attributes = 0;
698	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
699
700	/* Look for a generic full-sized window */
701	link->io.NumPorts1 = 8;
702	i = first_tuple(handle, &tuple, &parse);
703	while (i != CS_NO_MORE_ITEMS) {
704	if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
705	link->conf.ConfigIndex = cf->index;
706	link->io.BasePort1 = cf->io.win[0].base;
707	link->io.NumPorts1 = cf->io.win[0].len; /yo /
708	link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
709	i = pcmcia_request_io(link->handle, &link->io);
710	if (i == CS_SUCCESS)
711	break;
712	}
713	i = next_tuple(handle, &tuple, &parse);
714	}
715
716	if (i != CS_SUCCESS) {
717	cs_error(link->handle, RequestIO, i);
718	goto failed;
719	}
720
721	i = pcmcia_request_irq(link->handle, &link->irq);
722	if (i != CS_SUCCESS) {
723	cs_error(link->handle, RequestIRQ, i);
724	link->irq.AssignedIRQ = 0;
725	}
726
727	i = pcmcia_request_configuration(link->handle, &link->conf);
728	if (i != CS_SUCCESS) {
729	cs_error(link->handle, RequestConfiguration, i);
730	goto failed;
731	}
732
733	if (dtl1_open(info) != 0)
734	goto failed;
735
736	strcpy(info->node.dev_name, info->hdev->name);
737	link->dev = &info->node;
738	link->state &= ~DEV_CONFIG_PENDING;
739
740	return;
741
742	cs_failed:
743	cs_error(link->handle, last_fn, last_ret);
744
745	failed:
746	dtl1_release(link);
747	}
748
749
750	static void dtl1_release(dev_link_t *link)
751	{
752	dtl1_info_t *info = link->priv;
753
754	if (link->state & DEV_PRESENT)
755	dtl1_close(info);
756
757	link->dev = NULL;
758
759	pcmcia_release_configuration(link->handle);
760	pcmcia_release_io(link->handle, &link->io);
761	pcmcia_release_irq(link->handle, &link->irq);
762
763	link->state &= ~DEV_CONFIG;
764	}
765
98e4c28b DB	766	static int dtl1_suspend(struct pcmcia_device *dev)
	767	{
	768	dev_link_t *link = dev_to_instance(dev);
	769
	770	link->state \|= DEV_SUSPEND;
	771	if (link->state & DEV_CONFIG)
	772	pcmcia_release_configuration(link->handle);
	773
	774	return 0;
	775	}
	776
	777	static int dtl1_resume(struct pcmcia_device *dev)
	778	{
	779	dev_link_t *link = dev_to_instance(dev);
	780
	781	link->state &= ~DEV_SUSPEND;
	782	if (DEV_OK(link))
	783	pcmcia_request_configuration(link->handle, &link->conf);
	784
	785	return 0;
	786	}
1da177e4 LT	787
	788	static int dtl1_event(event_t event, int priority, event_callback_args_t *args)
	789	{
	790	dev_link_t *link = args->client_data;
	791	dtl1_info_t *info = link->priv;
	792
	793	switch (event) {
	794	case CS_EVENT_CARD_REMOVAL:
	795	link->state &= ~DEV_PRESENT;
	796	if (link->state & DEV_CONFIG) {
	797	dtl1_close(info);
	798	dtl1_release(link);
	799	}
	800	break;
	801	case CS_EVENT_CARD_INSERTION:
	802	link->state \|= DEV_PRESENT \| DEV_CONFIG_PENDING;
	803	dtl1_config(link);
	804	break;
1da177e4 LT	805	}
	806
	807	return 0;
	808	}
	809
88eca2e5 DB	810	static struct pcmcia_device_id dtl1_ids[] = {
	811	PCMCIA_DEVICE_PROD_ID12("Nokia Mobile Phones", "DTL-1", 0xe1bfdd64, 0xe168480d),
	812	PCMCIA_DEVICE_PROD_ID12("Socket", "CF", 0xb38bcc2e, 0x44ebf863),
	813	PCMCIA_DEVICE_NULL
	814	};
	815	MODULE_DEVICE_TABLE(pcmcia, dtl1_ids);
	816
1da177e4 LT	817	static struct pcmcia_driver dtl1_driver = {
	818	.owner = THIS_MODULE,
	819	.drv = {
	820	.name = "dtl1_cs",
	821	},
	822	.attach = dtl1_attach,
1e212f36	823	.event = dtl1_event,
1da177e4	824	.detach = dtl1_detach,
88eca2e5	825	.id_table = dtl1_ids,
98e4c28b DB	826	.suspend = dtl1_suspend,
98e4c28b DB	827	.resume = dtl1_resume,
1da177e4 LT	828	};
	829
	830	static int __init init_dtl1_cs(void)
	831	{
	832	return pcmcia_register_driver(&dtl1_driver);
	833	}
	834
	835
	836	static void __exit exit_dtl1_cs(void)
	837	{
	838	pcmcia_unregister_driver(&dtl1_driver);
	839	BUG_ON(dev_list != NULL);
	840	}
	841
	842	module_init(init_dtl1_cs);
	843	module_exit(exit_dtl1_cs);