Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 747 insertions, 0 deletions

diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
new file mode 100644
index 000000000000..9034f9ad37c7
--- /dev/null
+++ b/drivers/serial/serial_cs.c
@@ -0,0 +1,747 @@
+/*======================================================================
+
+    A driver for PCMCIA serial devices
+
+    serial_cs.c 1.134 2002/05/04 05:48:53
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    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.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU General Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+    
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/serial_core.h>
+#include <linux/major.h>
+#include <asm/io.h>
+#include <asm/system.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 "8250.h"
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0644);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version = "serial_cs.c 1.134 2002/05/04 05:48:53 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+/* Enable the speaker? */
+static int do_sound = 1;
+/* Skip strict UART tests? */
+static int buggy_uart;
+
+module_param(do_sound, int, 0444);
+module_param(buggy_uart, int, 0444);
+
+/*====================================================================*/
+
+/* Table of multi-port card ID's */
+
+struct multi_id {
+        u_short manfid;
+        u_short prodid;
+        int multi;              /* 1 = multifunction, > 1 = # ports */
+};
+
+static struct multi_id multi_id[] = {
+        { MANFID_OMEGA,   PRODID_OMEGA_QSP_100,         4 },
+        { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232,    2 },
+        { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232_D1, 2 },
+        { MANFID_QUATECH, PRODID_QUATECH_QUAD_RS232,    4 },
+        { MANFID_SOCKET,  PRODID_SOCKET_DUAL_RS232,     2 },
+        { MANFID_INTEL,   PRODID_INTEL_DUAL_RS232,      2 },
+        { MANFID_NATINST, PRODID_NATINST_QUAD_RS232,    4 }
+};
+#define MULTI_COUNT (sizeof(multi_id)/sizeof(struct multi_id))
+
+struct serial_info {
+        dev_link_t              link;
+        int                     ndev;
+        int                     multi;
+        int                     slave;
+        int                     manfid;
+        dev_node_t              node[4];
+        int                     line[4];
+};
+
+static void serial_config(dev_link_t * link);
+static int serial_event(event_t event, int priority,
+                        event_callback_args_t * args);
+
+static dev_info_t dev_info = "serial_cs";
+
+static dev_link_t *serial_attach(void);
+static void serial_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+/*======================================================================
+
+    After a card is removed, serial_remove() will unregister
+    the serial device(s), and release the PCMCIA configuration.
+    
+======================================================================*/
+
+static void serial_remove(dev_link_t *link)
+{
+        struct serial_info *info = link->priv;
+        int i;
+
+        link->state &= ~DEV_PRESENT;
+
+        DEBUG(0, "serial_release(0x%p)\n", link);
+
+        /*
+         * Recheck to see if the device is still configured.
+         */
+        if (info->link.state & DEV_CONFIG) {
+                for (i = 0; i < info->ndev; i++)
+                        serial8250_unregister_port(info->line[i]);
+
+                info->link.dev = NULL;
+
+                if (!info->slave) {
+                        pcmcia_release_configuration(info->link.handle);
+                        pcmcia_release_io(info->link.handle, &info->link.io);
+                        pcmcia_release_irq(info->link.handle, &info->link.irq);
+                }
+
+                info->link.state &= ~DEV_CONFIG;
+        }
+}
+
+static void serial_suspend(dev_link_t *link)
+{
+        link->state |= DEV_SUSPEND;
+
+        if (link->state & DEV_CONFIG) {
+                struct serial_info *info = link->priv;
+                int i;
+
+                for (i = 0; i < info->ndev; i++)
+                        serial8250_suspend_port(info->line[i]);
+
+                if (!info->slave)
+                        pcmcia_release_configuration(link->handle);
+        }
+}
+
+static void serial_resume(dev_link_t *link)
+{
+        link->state &= ~DEV_SUSPEND;
+
+        if (DEV_OK(link)) {
+                struct serial_info *info = link->priv;
+                int i;
+
+                if (!info->slave)
+                        pcmcia_request_configuration(link->handle, &link->conf);
+
+                for (i = 0; i < info->ndev; i++)
+                        serial8250_resume_port(info->line[i]);
+        }
+}
+
+/*======================================================================
+
+    serial_attach() creates an "instance" of the driver, allocating
+    local data structures for one device.  The device is registered
+    with Card Services.
+
+======================================================================*/
+
+static dev_link_t *serial_attach(void)
+{
+        struct serial_info *info;
+        client_reg_t client_reg;
+        dev_link_t *link;
+        int ret;
+
+        DEBUG(0, "serial_attach()\n");
+
+        /* Create new serial 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;
+        link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+        link->conf.Attributes = CONF_ENABLE_IRQ;
+        if (do_sound) {
+                link->conf.Attributes |= CONF_ENABLE_SPKR;
+                link->conf.Status = CCSR_AUDIO_ENA;
+        }
+        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.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 = &serial_event;
+        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);
+                serial_detach(link);
+                return NULL;
+        }
+
+        return link;
+}
+
+/*======================================================================
+
+    This deletes a driver "instance".  The device is de-registered
+    with Card Services.  If it has been released, all local data
+    structures are freed.  Otherwise, the structures will be freed
+    when the device is released.
+
+======================================================================*/
+
+static void serial_detach(dev_link_t * link)
+{
+        struct serial_info *info = link->priv;
+        dev_link_t **linkp;
+        int ret;
+
+        DEBUG(0, "serial_detach(0x%p)\n", link);
+
+        /* Locate device structure */
+        for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+                if (*linkp == link)
+                        break;
+        if (*linkp == NULL)
+                return;
+
+        /*
+         * Ensure any outstanding scheduled tasks are completed.
+         */
+        flush_scheduled_work();
+
+        /*
+         * Ensure that the ports have been released.
+         */
+        serial_remove(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 setup_serial(client_handle_t handle, struct serial_info * info,
+                        kio_addr_t iobase, int irq)
+{
+        struct uart_port port;
+        int line;
+
+        memset(&port, 0, sizeof (struct uart_port));
+        port.iobase = iobase;
+        port.irq = irq;
+        port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+        port.uartclk = 1843200;
+        port.dev = &handle_to_dev(handle);
+        if (buggy_uart)
+                port.flags |= UPF_BUGGY_UART;
+        line = serial8250_register_port(&port);
+        if (line < 0) {
+                printk(KERN_NOTICE "serial_cs: serial8250_register_port() at "
+                       "0x%04lx, irq %d failed\n", (u_long)iobase, irq);
+                return -EINVAL;
+        }
+
+        info->line[info->ndev] = line;
+        sprintf(info->node[info->ndev].dev_name, "ttyS%d", line);
+        info->node[info->ndev].major = TTY_MAJOR;
+        info->node[info->ndev].minor = 0x40 + line;
+        if (info->ndev > 0)
+                info->node[info->ndev - 1].next = &info->node[info->ndev];
+        info->ndev++;
+
+        return 0;
+}
+
+/*====================================================================*/
+
+static int
+first_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse)
+{
+        int i;
+        i = pcmcia_get_first_tuple(handle, tuple);
+        if (i != CS_SUCCESS)
+                return CS_NO_MORE_ITEMS;
+        i = pcmcia_get_tuple_data(handle, tuple);
+        if (i != CS_SUCCESS)
+                return i;
+        return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static int
+next_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse)
+{
+        int i;
+        i = pcmcia_get_next_tuple(handle, tuple);
+        if (i != CS_SUCCESS)
+                return CS_NO_MORE_ITEMS;
+        i = pcmcia_get_tuple_data(handle, tuple);
+        if (i != CS_SUCCESS)
+                return i;
+        return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+/*====================================================================*/
+
+static int simple_config(dev_link_t *link)
+{
+        static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+        static int size_table[2] = { 8, 16 };
+        client_handle_t handle = link->handle;
+        struct serial_info *info = link->priv;
+        tuple_t tuple;
+        u_char buf[256];
+        cisparse_t parse;
+        cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+        config_info_t config;
+        int i, j, try;
+        int s;
+
+        /* If the card is already configured, look up the port and irq */
+        i = pcmcia_get_configuration_info(handle, &config);
+        if ((i == CS_SUCCESS) && (config.Attributes & CONF_VALID_CLIENT)) {
+                kio_addr_t port = 0;
+                if ((config.BasePort2 != 0) && (config.NumPorts2 == 8)) {
+                        port = config.BasePort2;
+                        info->slave = 1;
+                } else if ((info->manfid == MANFID_OSITECH) &&
+                           (config.NumPorts1 == 0x40)) {
+                        port = config.BasePort1 + 0x28;
+                        info->slave = 1;
+                }
+                if (info->slave)
+                        return setup_serial(handle, info, port, config.AssignedIRQ);
+        }
+        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 (s = 0; s < 2; s++) {
+                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 == size_table[s]) &&
+                                            (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) {
+                printk(KERN_NOTICE
+                       "serial_cs: no usable port range found, giving up\n");
+                cs_error(link->handle, RequestIO, i);
+                return -1;
+        }
+
+        i = pcmcia_request_irq(link->handle, &link->irq);
+        if (i != CS_SUCCESS) {
+                cs_error(link->handle, RequestIRQ, i);
+                link->irq.AssignedIRQ = 0;
+        }
+        if (info->multi && (info->manfid == MANFID_3COM))
+                link->conf.ConfigIndex &= ~(0x08);
+        i = pcmcia_request_configuration(link->handle, &link->conf);
+        if (i != CS_SUCCESS) {
+                cs_error(link->handle, RequestConfiguration, i);
+                return -1;
+        }
+
+        return setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ);
+}
+
+static int multi_config(dev_link_t * link)
+{
+        client_handle_t handle = link->handle;
+        struct serial_info *info = link->priv;
+        tuple_t tuple;
+        u_char buf[256];
+        cisparse_t parse;
+        cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+        config_info_t config;
+        int i, base2 = 0;
+
+        i = pcmcia_get_configuration_info(handle, &config);
+        if (i != CS_SUCCESS) {
+                cs_error(handle, GetConfigurationInfo, i);
+                return -1;
+        }
+        link->conf.Vcc = config.Vcc;
+
+        tuple.TupleData = (cisdata_t *) buf;
+        tuple.TupleOffset = 0;
+        tuple.TupleDataMax = 255;
+        tuple.Attributes = 0;
+        tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+        /* First, look for a generic full-sized window */
+        link->io.NumPorts1 = info->multi * 8;
+        i = first_tuple(handle, &tuple, &parse);
+        while (i != CS_NO_MORE_ITEMS) {
+                /* The quad port cards have bad CIS's, so just look for a
+                   window larger than 8 ports and assume it will be right */
+                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.IOAddrLines =
+                            cf->io.flags & CISTPL_IO_LINES_MASK;
+                        i = pcmcia_request_io(link->handle, &link->io);
+                        base2 = link->io.BasePort1 + 8;
+                        if (i == CS_SUCCESS)
+                                break;
+                }
+                i = next_tuple(handle, &tuple, &parse);
+        }
+
+        /* If that didn't work, look for two windows */
+        if (i != CS_SUCCESS) {
+                link->io.NumPorts1 = link->io.NumPorts2 = 8;
+                info->multi = 2;
+                i = first_tuple(handle, &tuple, &parse);
+                while (i != CS_NO_MORE_ITEMS) {
+                        if ((i == CS_SUCCESS) && (cf->io.nwin == 2)) {
+                                link->conf.ConfigIndex = cf->index;
+                                link->io.BasePort1 = cf->io.win[0].base;
+                                link->io.BasePort2 = cf->io.win[1].base;
+                                link->io.IOAddrLines =
+                                    cf->io.flags & CISTPL_IO_LINES_MASK;
+                                i = pcmcia_request_io(link->handle, &link->io);
+                                base2 = link->io.BasePort2;
+                                if (i == CS_SUCCESS)
+                                        break;
+                        }
+                        i = next_tuple(handle, &tuple, &parse);
+                }
+        }
+
+        if (i != CS_SUCCESS) {
+                cs_error(link->handle, RequestIO, i);
+                return -1;
+        }
+
+        i = pcmcia_request_irq(link->handle, &link->irq);
+        if (i != CS_SUCCESS) {
+                printk(KERN_NOTICE
+                       "serial_cs: no usable port range found, giving up\n");
+                cs_error(link->handle, RequestIRQ, i);
+                link->irq.AssignedIRQ = 0;
+        }
+        /* Socket Dual IO: this enables irq's for second port */
+        if (info->multi && (info->manfid == MANFID_SOCKET)) {
+                link->conf.Present |= PRESENT_EXT_STATUS;
+                link->conf.ExtStatus = ESR_REQ_ATTN_ENA;
+        }
+        i = pcmcia_request_configuration(link->handle, &link->conf);
+        if (i != CS_SUCCESS) {
+                cs_error(link->handle, RequestConfiguration, i);
+                return -1;
+        }
+
+        /* The Oxford Semiconductor OXCF950 cards are in fact single-port:
+           8 registers are for the UART, the others are extra registers */
+        if (info->manfid == MANFID_OXSEMI) {
+                if (cf->index == 1 || cf->index == 3) {
+                        setup_serial(handle, info, base2, link->irq.AssignedIRQ);
+                        outb(12, link->io.BasePort1 + 1);
+                } else {
+                        setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ);
+                        outb(12, base2 + 1);
+                }
+                return 0;
+        }
+
+        setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ);
+        /* The Nokia cards are not really multiport cards */
+        if (info->manfid == MANFID_NOKIA)
+                return 0;
+        for (i = 0; i < info->multi - 1; i++)
+                setup_serial(handle, info, base2 + (8 * i), link->irq.AssignedIRQ);
+
+        return 0;
+}
+
+/*======================================================================
+
+    serial_config() is scheduled to run after a CARD_INSERTION event
+    is received, to configure the PCMCIA socket, and to make the
+    serial device available to the system.
+
+======================================================================*/
+
+void serial_config(dev_link_t * link)
+{
+        client_handle_t handle = link->handle;
+        struct serial_info *info = link->priv;
+        tuple_t tuple;
+        u_short buf[128];
+        cisparse_t parse;
+        cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+        int i, last_ret, last_fn;
+
+        DEBUG(0, "serial_config(0x%p)\n", link);
+
+        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;
+
+        /* Is this a compliant multifunction card? */
+        tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
+        tuple.Attributes = TUPLE_RETURN_COMMON | TUPLE_RETURN_LINK;
+        info->multi = (first_tuple(handle, &tuple, &parse) == CS_SUCCESS);
+
+        /* Is this a multiport card? */
+        tuple.DesiredTuple = CISTPL_MANFID;
+        if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) {
+                info->manfid = le16_to_cpu(buf[0]);
+                for (i = 0; i < MULTI_COUNT; i++)
+                        if ((info->manfid == multi_id[i].manfid) &&
+                            (le16_to_cpu(buf[1]) == multi_id[i].prodid))
+                                break;
+                if (i < MULTI_COUNT)
+                        info->multi = multi_id[i].multi;
+        }
+
+        /* Another check for dual-serial cards: look for either serial or
+           multifunction cards that ask for appropriate IO port ranges */
+        tuple.DesiredTuple = CISTPL_FUNCID;
+        if ((info->multi == 0) &&
+            ((first_tuple(handle, &tuple, &parse) != CS_SUCCESS) ||
+             (parse.funcid.func == CISTPL_FUNCID_MULTI) ||
+             (parse.funcid.func == CISTPL_FUNCID_SERIAL))) {
+                tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+                if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) {
+                        if ((cf->io.nwin == 1) && (cf->io.win[0].len % 8 == 0))
+                                info->multi = cf->io.win[0].len >> 3;
+                        if ((cf->io.nwin == 2) && (cf->io.win[0].len == 8) &&
+                            (cf->io.win[1].len == 8))
+                                info->multi = 2;
+                }
+        }
+
+        if (info->multi > 1)
+                multi_config(link);
+        else
+                simple_config(link);
+
+        if (info->ndev == 0)
+                goto failed;
+
+        if (info->manfid == MANFID_IBM) {
+                conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
+                last_ret = pcmcia_access_configuration_register(link->handle, &reg);
+                if (last_ret) {
+                        last_fn = AccessConfigurationRegister;
+                        goto cs_failed;
+                }
+                reg.Action = CS_WRITE;
+                reg.Value = reg.Value | 1;
+                last_ret = pcmcia_access_configuration_register(link->handle, &reg);
+                if (last_ret) {
+                        last_fn = AccessConfigurationRegister;
+                        goto cs_failed;
+                }
+        }
+
+        link->dev = &info->node[0];
+        link->state &= ~DEV_CONFIG_PENDING;
+        return;
+
+ cs_failed:
+        cs_error(link->handle, last_fn, last_ret);
+ failed:
+        serial_remove(link);
+        link->state &= ~DEV_CONFIG_PENDING;
+}
+
+/*======================================================================
+
+    The card status event handler.  Mostly, this schedules other
+    stuff to run after an event is received.  A CARD_REMOVAL event
+    also sets some flags to discourage the serial drivers from
+    talking to the ports.
+    
+======================================================================*/
+
+static int
+serial_event(event_t event, int priority, event_callback_args_t * args)
+{
+        dev_link_t *link = args->client_data;
+        struct serial_info *info = link->priv;
+
+        DEBUG(1, "serial_event(0x%06x)\n", event);
+
+        switch (event) {
+        case CS_EVENT_CARD_REMOVAL:
+                serial_remove(link);
+                break;
+
+        case CS_EVENT_CARD_INSERTION:
+                link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+                serial_config(link);
+                break;
+
+        case CS_EVENT_PM_SUSPEND:
+                serial_suspend(link);
+                break;
+
+        case CS_EVENT_RESET_PHYSICAL:
+                if ((link->state & DEV_CONFIG) && !info->slave)
+                        pcmcia_release_configuration(link->handle);
+                break;
+
+        case CS_EVENT_PM_RESUME:
+                serial_resume(link);
+                break;
+
+        case CS_EVENT_CARD_RESET:
+                if (DEV_OK(link) && !info->slave)
+                        pcmcia_request_configuration(link->handle, &link->conf);
+                break;
+        }
+        return 0;
+}
+
+static struct pcmcia_driver serial_cs_driver = {
+        .owner          = THIS_MODULE,
+        .drv            = {
+                .name   = "serial_cs",
+        },
+        .attach         = serial_attach,
+        .detach         = serial_detach,
+};
+
+static int __init init_serial_cs(void)
+{
+        return pcmcia_register_driver(&serial_cs_driver);
+}
+
+static void __exit exit_serial_cs(void)
+{
+        pcmcia_unregister_driver(&serial_cs_driver);
+        BUG_ON(dev_list != NULL);
+}
+
+module_init(init_serial_cs);
+module_exit(exit_serial_cs);
+
+MODULE_LICENSE("GPL");