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linux-next/drivers/bluetooth/bt3c_cs.c
Marcel Holtmann 0d48d93947 [Bluetooth]: Move packet type into the SKB control buffer
This patch moves the usage of packet type into the SKB control
buffer. After this patch it is now possible to shrink the sk_buff
structure and redefine its pkt_type.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 15:55:13 -07:00

963 lines
20 KiB
C

/*
*
* Driver for the 3Com Bluetooth PCMCIA card
*
* Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
* Jose Orlando Pereira <jop@di.uminho.pt>
*
*
* 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 <linux/device.h>
#include <linux/firmware.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>, Jose Orlando Pereira <jop@di.uminho.pt>");
MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card");
MODULE_LICENSE("GPL");
/* ======================== Local structures ======================== */
typedef struct bt3c_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;
} bt3c_info_t;
static void bt3c_config(dev_link_t *link);
static void bt3c_release(dev_link_t *link);
static int bt3c_event(event_t event, int priority, event_callback_args_t *args);
static dev_info_t dev_info = "bt3c_cs";
static dev_link_t *bt3c_attach(void);
static void bt3c_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 I/O functions ======================== */
#define DATA_L 0
#define DATA_H 1
#define ADDR_L 2
#define ADDR_H 3
#define CONTROL 4
static inline void bt3c_address(unsigned int iobase, unsigned short addr)
{
outb(addr & 0xff, iobase + ADDR_L);
outb((addr >> 8) & 0xff, iobase + ADDR_H);
}
static inline void bt3c_put(unsigned int iobase, unsigned short value)
{
outb(value & 0xff, iobase + DATA_L);
outb((value >> 8) & 0xff, iobase + DATA_H);
}
static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value)
{
bt3c_address(iobase, addr);
bt3c_put(iobase, value);
}
static inline unsigned short bt3c_get(unsigned int iobase)
{
unsigned short value = inb(iobase + DATA_L);
value |= inb(iobase + DATA_H) << 8;
return value;
}
static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr)
{
bt3c_address(iobase, addr);
return bt3c_get(iobase);
}
/* ======================== Interrupt handling ======================== */
static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
{
int actual = 0;
bt3c_address(iobase, 0x7080);
/* Fill FIFO with current frame */
while (actual < len) {
/* Transmit next byte */
bt3c_put(iobase, buf[actual]);
actual++;
}
bt3c_io_write(iobase, 0x7005, actual);
return actual;
}
static void bt3c_write_wakeup(bt3c_info_t *info)
{
if (!info) {
BT_ERR("Unknown device");
return;
}
if (test_and_set_bit(XMIT_SENDING, &(info->tx_state)))
return;
do {
register unsigned int iobase = info->link.io.BasePort1;
register struct sk_buff *skb;
register int len;
if (!(info->link.state & DEV_PRESENT))
break;
if (!(skb = skb_dequeue(&(info->txq)))) {
clear_bit(XMIT_SENDING, &(info->tx_state));
break;
}
/* Send frame */
len = bt3c_write(iobase, 256, skb->data, skb->len);
if (len != skb->len) {
BT_ERR("Very strange");
}
kfree_skb(skb);
info->hdev->stat.byte_tx += len;
} while (0);
}
static void bt3c_receive(bt3c_info_t *info)
{
unsigned int iobase;
int size = 0, avail;
if (!info) {
BT_ERR("Unknown device");
return;
}
iobase = info->link.io.BasePort1;
avail = bt3c_read(iobase, 0x7006);
//printk("bt3c_cs: receiving %d bytes\n", avail);
bt3c_address(iobase, 0x7480);
while (size < avail) {
size++;
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))) {
BT_ERR("Can't allocate mem for new packet");
return;
}
}
if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
info->rx_skb->dev = (void *) info->hdev;
bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L);
inb(iobase + DATA_H);
//printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type);
switch (bt_cb(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 */
BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(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 {
__u8 x = inb(iobase + DATA_L);
*skb_put(info->rx_skb, 1) = x;
inb(iobase + DATA_H);
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;
}
}
}
}
bt3c_io_write(iobase, 0x7006, 0x0000);
}
static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
{
bt3c_info_t *info = dev_inst;
unsigned int iobase;
int iir;
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 + CONTROL);
if (iir & 0x80) {
int stat = bt3c_read(iobase, 0x7001);
if ((stat & 0xff) == 0x7f) {
BT_ERR("Very strange (stat=0x%04x)", stat);
} else if ((stat & 0xff) != 0xff) {
if (stat & 0x0020) {
int stat = bt3c_read(iobase, 0x7002) & 0x10;
BT_INFO("%s: Antenna %s", info->hdev->name,
stat ? "out" : "in");
}
if (stat & 0x0001)
bt3c_receive(info);
if (stat & 0x0002) {
//BT_ERR("Ack (stat=0x%04x)", stat);
clear_bit(XMIT_SENDING, &(info->tx_state));
bt3c_write_wakeup(info);
}
bt3c_io_write(iobase, 0x7001, 0x0000);
outb(iir, iobase + CONTROL);
}
}
spin_unlock(&(info->lock));
return IRQ_HANDLED;
}
/* ======================== HCI interface ======================== */
static int bt3c_hci_flush(struct hci_dev *hdev)
{
bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data);
/* Drop TX queue */
skb_queue_purge(&(info->txq));
return 0;
}
static int bt3c_hci_open(struct hci_dev *hdev)
{
set_bit(HCI_RUNNING, &(hdev->flags));
return 0;
}
static int bt3c_hci_close(struct hci_dev *hdev)
{
if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
return 0;
bt3c_hci_flush(hdev);
return 0;
}
static int bt3c_hci_send_frame(struct sk_buff *skb)
{
bt3c_info_t *info;
struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
unsigned long flags;
if (!hdev) {
BT_ERR("Frame for unknown HCI device (hdev=NULL)");
return -ENODEV;
}
info = (bt3c_info_t *) (hdev->driver_data);
switch (bt_cb(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), &bt_cb(skb)->pkt_type, 1);
skb_queue_tail(&(info->txq), skb);
spin_lock_irqsave(&(info->lock), flags);
bt3c_write_wakeup(info);
spin_unlock_irqrestore(&(info->lock), flags);
return 0;
}
static void bt3c_hci_destruct(struct hci_dev *hdev)
{
}
static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
{
return -ENOIOCTLCMD;
}
/* ======================== Card services HCI interaction ======================== */
static struct device *bt3c_device(void)
{
static struct device dev = {
.bus_id = "pcmcia",
};
kobject_set_name(&dev.kobj, "bt3c");
kobject_init(&dev.kobj);
return &dev;
}
static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count)
{
char *ptr = (char *) firmware;
char b[9];
unsigned int iobase, size, addr, fcs, tmp;
int i, err = 0;
iobase = info->link.io.BasePort1;
/* Reset */
bt3c_io_write(iobase, 0x8040, 0x0404);
bt3c_io_write(iobase, 0x8040, 0x0400);
udelay(1);
bt3c_io_write(iobase, 0x8040, 0x0404);
udelay(17);
/* Load */
while (count) {
if (ptr[0] != 'S') {
BT_ERR("Bad address in firmware");
err = -EFAULT;
goto error;
}
memset(b, 0, sizeof(b));
memcpy(b, ptr + 2, 2);
size = simple_strtol(b, NULL, 16);
memset(b, 0, sizeof(b));
memcpy(b, ptr + 4, 8);
addr = simple_strtol(b, NULL, 16);
memset(b, 0, sizeof(b));
memcpy(b, ptr + (size * 2) + 2, 2);
fcs = simple_strtol(b, NULL, 16);
memset(b, 0, sizeof(b));
for (tmp = 0, i = 0; i < size; i++) {
memcpy(b, ptr + (i * 2) + 2, 2);
tmp += simple_strtol(b, NULL, 16);
}
if (((tmp + fcs) & 0xff) != 0xff) {
BT_ERR("Checksum error in firmware");
err = -EILSEQ;
goto error;
}
if (ptr[1] == '3') {
bt3c_address(iobase, addr);
memset(b, 0, sizeof(b));
for (i = 0; i < (size - 4) / 2; i++) {
memcpy(b, ptr + (i * 4) + 12, 4);
tmp = simple_strtol(b, NULL, 16);
bt3c_put(iobase, tmp);
}
}
ptr += (size * 2) + 6;
count -= (size * 2) + 6;
}
udelay(17);
/* Boot */
bt3c_address(iobase, 0x3000);
outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL);
error:
udelay(17);
/* Clear */
bt3c_io_write(iobase, 0x7006, 0x0000);
bt3c_io_write(iobase, 0x7005, 0x0000);
bt3c_io_write(iobase, 0x7001, 0x0000);
return err;
}
static int bt3c_open(bt3c_info_t *info)
{
const struct firmware *firmware;
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;
/* 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 = bt3c_hci_open;
hdev->close = bt3c_hci_close;
hdev->flush = bt3c_hci_flush;
hdev->send = bt3c_hci_send_frame;
hdev->destruct = bt3c_hci_destruct;
hdev->ioctl = bt3c_hci_ioctl;
hdev->owner = THIS_MODULE;
/* Load firmware */
err = request_firmware(&firmware, "BT3CPCC.bin", bt3c_device());
if (err < 0) {
BT_ERR("Firmware request failed");
goto error;
}
err = bt3c_load_firmware(info, firmware->data, firmware->size);
release_firmware(firmware);
if (err < 0) {
BT_ERR("Firmware loading failed");
goto error;
}
/* Timeout before it is safe to send the first HCI packet */
msleep(1000);
/* Register HCI device */
err = hci_register_dev(hdev);
if (err < 0) {
BT_ERR("Can't register HCI device");
goto error;
}
return 0;
error:
info->hdev = NULL;
hci_free_dev(hdev);
return err;
}
static int bt3c_close(bt3c_info_t *info)
{
struct hci_dev *hdev = info->hdev;
if (!hdev)
return -ENODEV;
bt3c_hci_close(hdev);
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 *bt3c_attach(void)
{
bt3c_info_t *info;
client_reg_t client_reg;
dev_link_t *link;
int 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->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 = bt3c_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);
bt3c_detach(link);
return NULL;
}
return link;
}
static void bt3c_detach(dev_link_t *link)
{
bt3c_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)
bt3c_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 bt3c_config(dev_link_t *link)
{
static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
client_handle_t handle = link->handle;
bt3c_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 = pcmcia_get_configuration_info(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 = pcmcia_request_io(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 = pcmcia_request_io(link->handle, &link->io);
if (i == CS_SUCCESS)
goto found_port;
}
}
i = next_tuple(handle, &tuple, &parse);
}
found_port:
if (i != CS_SUCCESS) {
BT_ERR("No usable port range found");
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 (bt3c_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:
bt3c_release(link);
}
static void bt3c_release(dev_link_t *link)
{
bt3c_info_t *info = link->priv;
if (link->state & DEV_PRESENT)
bt3c_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 bt3c_event(event_t event, int priority, event_callback_args_t *args)
{
dev_link_t *link = args->client_data;
bt3c_info_t *info = link->priv;
switch (event) {
case CS_EVENT_CARD_REMOVAL:
link->state &= ~DEV_PRESENT;
if (link->state & DEV_CONFIG) {
bt3c_close(info);
bt3c_release(link);
}
break;
case CS_EVENT_CARD_INSERTION:
link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
bt3c_config(link);
break;
case CS_EVENT_PM_SUSPEND:
link->state |= DEV_SUSPEND;
/* Fall through... */
case CS_EVENT_RESET_PHYSICAL:
if (link->state & DEV_CONFIG)
pcmcia_release_configuration(link->handle);
break;
case CS_EVENT_PM_RESUME:
link->state &= ~DEV_SUSPEND;
/* Fall through... */
case CS_EVENT_CARD_RESET:
if (DEV_OK(link))
pcmcia_request_configuration(link->handle, &link->conf);
break;
}
return 0;
}
static struct pcmcia_device_id bt3c_ids[] = {
PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02),
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, bt3c_ids);
static struct pcmcia_driver bt3c_driver = {
.owner = THIS_MODULE,
.drv = {
.name = "bt3c_cs",
},
.attach = bt3c_attach,
.event = bt3c_event,
.detach = bt3c_detach,
.id_table = bt3c_ids,
};
static int __init init_bt3c_cs(void)
{
return pcmcia_register_driver(&bt3c_driver);
}
static void __exit exit_bt3c_cs(void)
{
pcmcia_unregister_driver(&bt3c_driver);
BUG_ON(dev_list != NULL);
}
module_init(init_bt3c_cs);
module_exit(exit_bt3c_cs);