Add HostAP wireless driver.

Includes minor cleanups from Adrian Bunk <bunk@stusta.de>.

1 files changed, 950 insertions, 0 deletions

diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
new file mode 100644
index 000000000000..e66c797bdc8b
--- /dev/null
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -0,0 +1,950 @@
+#define PRISM2_PCCARD
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/if.h>
+#include <linux/wait.h>
+#include <linux/timer.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+#include <asm/io.h>
+
+#include "hostap_wlan.h"
+
+
+static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
+static dev_info_t dev_info = "hostap_cs";
+static dev_link_t *dev_list = NULL;
+
+MODULE_AUTHOR("Jouni Malinen");
+MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN "
+                   "cards (PC Card).");
+MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PC Card)");
+MODULE_LICENSE("GPL");
+
+
+static int irq_mask = 0xdeb8;
+module_param(irq_mask, int, 0444);
+
+static int irq_list[4] = { -1 };
+module_param_array(irq_list, int, NULL, 0444);
+
+static int ignore_cis_vcc;
+module_param(ignore_cis_vcc, int, 0444);
+MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");
+
+
+#ifdef PRISM2_IO_DEBUG
+
+static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
+        outb(v, dev->base_addr + a);
+        spin_unlock_irqrestore(&local->lock, flags);
+}
+
+static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+        u8 v;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        v = inb(dev->base_addr + a);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
+        spin_unlock_irqrestore(&local->lock, flags);
+        return v;
+}
+
+static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
+        outw(v, dev->base_addr + a);
+        spin_unlock_irqrestore(&local->lock, flags);
+}
+
+static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+        u16 v;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        v = inw(dev->base_addr + a);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
+        spin_unlock_irqrestore(&local->lock, flags);
+        return v;
+}
+
+static inline void hfa384x_outsw_debug(struct net_device *dev, int a,
+                                       u8 *buf, int wc)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc);
+        outsw(dev->base_addr + a, buf, wc);
+        spin_unlock_irqrestore(&local->lock, flags);
+}
+
+static inline void hfa384x_insw_debug(struct net_device *dev, int a,
+                                      u8 *buf, int wc)
+{
+        struct hostap_interface *iface;
+        local_info_t *local;
+        unsigned long flags;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        spin_lock_irqsave(&local->lock, flags);
+        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc);
+        insw(dev->base_addr + a, buf, wc);
+        spin_unlock_irqrestore(&local->lock, flags);
+}
+
+#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
+#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
+#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
+#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
+#define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc))
+#define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc))
+
+#else /* PRISM2_IO_DEBUG */
+
+#define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a))
+#define HFA384X_INB(a) inb(dev->base_addr + (a))
+#define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a))
+#define HFA384X_INW(a) inw(dev->base_addr + (a))
+#define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc)
+#define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc)
+
+#endif /* PRISM2_IO_DEBUG */
+
+
+static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
+                            int len)
+{
+        u16 d_off;
+        u16 *pos;
+
+        d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
+        pos = (u16 *) buf;
+
+        if (len / 2)
+                HFA384X_INSW(d_off, buf, len / 2);
+        pos += len / 2;
+
+        if (len & 1)
+                *((char *) pos) = HFA384X_INB(d_off);
+
+        return 0;
+}
+
+
+static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
+{
+        u16 d_off;
+        u16 *pos;
+
+        d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
+        pos = (u16 *) buf;
+
+        if (len / 2)
+                HFA384X_OUTSW(d_off, buf, len / 2);
+        pos += len / 2;
+
+        if (len & 1)
+                HFA384X_OUTB(*((char *) pos), d_off);
+
+        return 0;
+}
+
+
+/* FIX: This might change at some point.. */
+#include "hostap_hw.c"
+
+
+
+static void prism2_detach(dev_link_t *link);
+static void prism2_release(u_long arg);
+static int prism2_event(event_t event, int priority,
+                        event_callback_args_t *args);
+
+
+static int prism2_pccard_card_present(local_info_t *local)
+{
+        if (local->link != NULL &&
+            ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
+             (DEV_PRESENT | DEV_CONFIG)))
+                return 1;
+        return 0;
+}
+
+
+/*
+ * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0
+ * Document No. 20-10-00058, January 2004
+ * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf
+ */
+#define SANDISK_WLAN_ACTIVATION_OFF 0x40
+#define SANDISK_HCR_OFF 0x42
+
+
+static void sandisk_set_iobase(local_info_t *local)
+{
+        int res;
+        conf_reg_t reg;
+
+        reg.Function = 0;
+        reg.Action = CS_WRITE;
+        reg.Offset = 0x10; /* 0x3f0 IO base 1 */
+        reg.Value = local->link->io.BasePort1 & 0x00ff;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -"
+                       " res=%d\n", res);
+        }
+        udelay(10);
+
+        reg.Function = 0;
+        reg.Action = CS_WRITE;
+        reg.Offset = 0x12; /* 0x3f2 IO base 2 */
+        reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -"
+                       " res=%d\n", res);
+        }
+}
+
+
+static void sandisk_write_hcr(local_info_t *local, int hcr)
+{
+        struct net_device *dev = local->dev;
+        int i;
+
+        HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF);
+        udelay(50);
+        for (i = 0; i < 10; i++) {
+                HFA384X_OUTB(hcr, SANDISK_HCR_OFF);
+        }
+        udelay(55);
+        HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF);
+}
+
+
+static int sandisk_enable_wireless(struct net_device *dev)
+{
+        int res, ret = 0;
+        conf_reg_t reg;
+        struct hostap_interface *iface = dev->priv;
+        local_info_t *local = iface->local;
+        tuple_t tuple;
+        cisparse_t *parse = NULL;
+        u_char buf[64];
+
+        if (local->link->io.NumPorts1 < 0x42) {
+                /* Not enough ports to be SanDisk multi-function card */
+                ret = -ENODEV;
+                goto done;
+        }
+
+        parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
+        if (parse == NULL) {
+                ret = -ENOMEM;
+                goto done;
+        }
+
+        tuple.DesiredTuple = CISTPL_MANFID;
+        tuple.Attributes = TUPLE_RETURN_COMMON;
+        tuple.TupleData = buf;
+        tuple.TupleDataMax = sizeof(buf);
+        tuple.TupleOffset = 0;
+        if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
+            pcmcia_get_tuple_data(local->link->handle, &tuple) ||
+            pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
+            parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) {
+                /* No SanDisk manfid found */
+                ret = -ENODEV;
+                goto done;
+        }
+
+        tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
+        if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
+            pcmcia_get_tuple_data(local->link->handle, &tuple) ||
+            pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
+                parse->longlink_mfc.nfn < 2) {
+                /* No multi-function links found */
+                ret = -ENODEV;
+                goto done;
+        }
+
+        printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected"
+               " - using vendor-specific initialization\n", dev->name);
+        local->sandisk_connectplus = 1;
+
+        reg.Function = 0;
+        reg.Action = CS_WRITE;
+        reg.Offset = CISREG_COR;
+        reg.Value = COR_SOFT_RESET;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
+                       dev->name, res);
+                goto done;
+        }
+        mdelay(5);
+
+        reg.Function = 0;
+        reg.Action = CS_WRITE;
+        reg.Offset = CISREG_COR;
+        /*
+         * Do not enable interrupts here to avoid some bogus events. Interrupts
+         * will be enabled during the first cor_sreset call.
+         */
+        reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
+                       dev->name, res);
+                goto done;
+        }
+        mdelay(5);
+
+        sandisk_set_iobase(local);
+
+        HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF);
+        udelay(10);
+        HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF);
+        udelay(10);
+
+done:
+        kfree(parse);
+        return ret;
+}
+
+
+static void prism2_pccard_cor_sreset(local_info_t *local)
+{
+        int res;
+        conf_reg_t reg;
+
+        if (!prism2_pccard_card_present(local))
+               return;
+
+        reg.Function = 0;
+        reg.Action = CS_READ;
+        reg.Offset = CISREG_COR;
+        reg.Value = 0;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n",
+                       res);
+                return;
+        }
+        printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n",
+               reg.Value);
+
+        reg.Action = CS_WRITE;
+        reg.Value |= COR_SOFT_RESET;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n",
+                       res);
+                return;
+        }
+
+        mdelay(local->sandisk_connectplus ? 5 : 2);
+
+        reg.Value &= ~COR_SOFT_RESET;
+        if (local->sandisk_connectplus)
+                reg.Value |= COR_IREQ_ENA;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n",
+                       res);
+                return;
+        }
+
+        mdelay(local->sandisk_connectplus ? 5 : 2);
+
+        if (local->sandisk_connectplus)
+                sandisk_set_iobase(local);
+}
+
+
+static void prism2_pccard_genesis_reset(local_info_t *local, int hcr)
+{
+        int res;
+        conf_reg_t reg;
+        int old_cor;
+
+        if (!prism2_pccard_card_present(local))
+               return;
+
+        if (local->sandisk_connectplus) {
+                sandisk_write_hcr(local, hcr);
+                return;
+        }
+
+        reg.Function = 0;
+        reg.Action = CS_READ;
+        reg.Offset = CISREG_COR;
+        reg.Value = 0;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 "
+                       "(%d)\n", res);
+                return;
+        }
+        printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n",
+               reg.Value);
+        old_cor = reg.Value;
+
+        reg.Action = CS_WRITE;
+        reg.Value |= COR_SOFT_RESET;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 "
+                       "(%d)\n", res);
+                return;
+        }
+
+        mdelay(10);
+
+        /* Setup Genesis mode */
+        reg.Action = CS_WRITE;
+        reg.Value = hcr;
+        reg.Offset = CISREG_CCSR;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 "
+                       "(%d)\n", res);
+                return;
+        }
+        mdelay(10);
+
+        reg.Action = CS_WRITE;
+        reg.Offset = CISREG_COR;
+        reg.Value = old_cor & ~COR_SOFT_RESET;
+        res = pcmcia_access_configuration_register(local->link->handle, &reg);
+        if (res != CS_SUCCESS) {
+                printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 "
+                       "(%d)\n", res);
+                return;
+        }
+
+        mdelay(10);
+}
+
+
+static int prism2_pccard_dev_open(local_info_t *local)
+{
+        local->link->open++;
+        return 0;
+}
+
+
+static int prism2_pccard_dev_close(local_info_t *local)
+{
+        if (local == NULL || local->link == NULL)
+                return 1;
+
+        if (!local->link->open) {
+                printk(KERN_WARNING "%s: prism2_pccard_dev_close(): "
+                       "link not open?!\n", local->dev->name);
+                return 1;
+        }
+
+        local->link->open--;
+
+        return 0;
+}
+
+
+static struct prism2_helper_functions prism2_pccard_funcs =
+{
+        .card_present   = prism2_pccard_card_present,
+        .cor_sreset     = prism2_pccard_cor_sreset,
+        .dev_open       = prism2_pccard_dev_open,
+        .dev_close      = prism2_pccard_dev_close,
+        .genesis_reset  = prism2_pccard_genesis_reset,
+        .hw_type        = HOSTAP_HW_PCCARD,
+};
+
+
+/* allocate local data and register with CardServices
+ * initialize dev_link structure, but do not configure the card yet */
+static dev_link_t *prism2_attach(void)
+{
+        dev_link_t *link;
+        client_reg_t client_reg;
+        int ret;
+
+        link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
+        if (link == NULL)
+                return NULL;
+
+        memset(link, 0, sizeof(dev_link_t));
+
+        PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
+        link->conf.Vcc = 33;
+        link->conf.IntType = INT_MEMORY_AND_IO;
+
+        /* register with CardServices */
+        link->next = dev_list;
+        dev_list = link;
+        client_reg.dev_info = &dev_info;
+        client_reg.Attributes = INFO_IO_CLIENT;
+        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 = &prism2_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);
+                prism2_detach(link);
+                return NULL;
+        }
+        return link;
+}
+
+
+static void prism2_detach(dev_link_t *link)
+{
+        dev_link_t **linkp;
+
+        PDEBUG(DEBUG_FLOW, "prism2_detach\n");
+
+        for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+                if (*linkp == link)
+                        break;
+        if (*linkp == NULL) {
+                printk(KERN_WARNING "%s: Attempt to detach non-existing "
+                       "PCMCIA client\n", dev_info);
+                return;
+        }
+
+        if (link->state & DEV_CONFIG) {
+                prism2_release((u_long)link);
+        }
+
+        if (link->handle) {
+                int res = pcmcia_deregister_client(link->handle);
+                if (res) {
+                        printk("CardService(DeregisterClient) => %d\n", res);
+                        cs_error(link->handle, DeregisterClient, res);
+                }
+        }
+
+        *linkp = link->next;
+        /* release net devices */
+        if (link->priv) {
+                prism2_free_local_data((struct net_device *) link->priv);
+
+        }
+        kfree(link);
+}
+
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+#define CFG_CHECK2(fn, retf) \
+do { int ret = (retf); \
+if (ret != 0) { \
+        PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \
+        cs_error(link->handle, fn, ret); \
+        goto next_entry; \
+} \
+} while (0)
+
+
+/* run after a CARD_INSERTION event is received to configure the PCMCIA
+ * socket and make the device available to the system */
+static int prism2_config(dev_link_t *link)
+{
+        struct net_device *dev;
+        struct hostap_interface *iface;
+        local_info_t *local;
+        int ret = 1;
+        tuple_t tuple;
+        cisparse_t *parse;
+        int last_fn, last_ret;
+        u_char buf[64];
+        config_info_t conf;
+        cistpl_cftable_entry_t dflt = { 0 };
+
+        PDEBUG(DEBUG_FLOW, "prism2_config()\n");
+
+        parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
+        if (parse == NULL) {
+                ret = -ENOMEM;
+                goto failed;
+        }
+
+        tuple.DesiredTuple = CISTPL_CONFIG;
+        tuple.Attributes = 0;
+        tuple.TupleData = buf;
+        tuple.TupleDataMax = sizeof(buf);
+        tuple.TupleOffset = 0;
+        CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
+        CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple));
+        CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse));
+        link->conf.ConfigBase = parse->config.base;
+        link->conf.Present = parse->config.rmask[0];
+
+        CS_CHECK(GetConfigurationInfo,
+                 pcmcia_get_configuration_info(link->handle, &conf));
+        PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info,
+               ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc);
+        link->conf.Vcc = conf.Vcc;
+
+        /* Look for an appropriate configuration table entry in the CIS */
+        tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+        CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
+        for (;;) {
+                cistpl_cftable_entry_t *cfg = &(parse->cftable_entry);
+                CFG_CHECK2(GetTupleData,
+                           pcmcia_get_tuple_data(link->handle, &tuple));
+                CFG_CHECK2(ParseTuple,
+                           pcmcia_parse_tuple(link->handle, &tuple, parse));
+
+                if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+                        dflt = *cfg;
+                if (cfg->index == 0)
+                        goto next_entry;
+                link->conf.ConfigIndex = cfg->index;
+                PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
+                       "(default 0x%02X)\n", cfg->index, dflt.index);
+        
+                /* Does this card need audio output? */
+                if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
+                        link->conf.Attributes |= CONF_ENABLE_SPKR;
+                        link->conf.Status = CCSR_AUDIO_ENA;
+                }
+        
+                /* Use power settings for Vcc and Vpp if present */
+                /*  Note that the CIS values need to be rescaled */
+                if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
+                        if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] /
+                            10000 && !ignore_cis_vcc) {
+                                PDEBUG(DEBUG_EXTRA, "  Vcc mismatch - skipping"
+                                       " this entry\n");
+                                goto next_entry;
+                        }
+                } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
+                        if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] /
+                            10000 && !ignore_cis_vcc) {
+                                PDEBUG(DEBUG_EXTRA, "  Vcc (default) mismatch "
+                                       "- skipping this entry\n");
+                                goto next_entry;
+                        }
+                }
+
+                if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
+                        link->conf.Vpp1 = link->conf.Vpp2 =
+                                cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+                else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
+                        link->conf.Vpp1 = link->conf.Vpp2 =
+                                dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
+
+                /* Do we need to allocate an interrupt? */
+                if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
+                        link->conf.Attributes |= CONF_ENABLE_IRQ;
+                else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) {
+                        /* At least Compaq WL200 does not have IRQInfo1 set,
+                         * but it does not work without interrupts.. */
+                        printk("Config has no IRQ info, but trying to enable "
+                               "IRQ anyway..\n");
+                        link->conf.Attributes |= CONF_ENABLE_IRQ;
+                }
+
+                /* IO window settings */
+                PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
+                       "dflt.io.nwin=%d\n",
+                       cfg->io.nwin, dflt.io.nwin);
+                link->io.NumPorts1 = link->io.NumPorts2 = 0;
+                if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
+                        cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
+                        link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+                        PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, "
+                               "io.base=0x%04x, len=%d\n", io->flags,
+                               io->win[0].base, io->win[0].len);
+                        if (!(io->flags & CISTPL_IO_8BIT))
+                                link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+                        if (!(io->flags & CISTPL_IO_16BIT))
+                                link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+                        link->io.IOAddrLines = io->flags &
+                                CISTPL_IO_LINES_MASK;
+                        link->io.BasePort1 = io->win[0].base;
+                        link->io.NumPorts1 = io->win[0].len;
+                        if (io->nwin > 1) {
+                                link->io.Attributes2 = link->io.Attributes1;
+                                link->io.BasePort2 = io->win[1].base;
+                                link->io.NumPorts2 = io->win[1].len;
+                        }
+                }
+
+                /* This reserves IO space but doesn't actually enable it */
+                CFG_CHECK2(RequestIO,
+                           pcmcia_request_io(link->handle, &link->io));
+
+                /* This configuration table entry is OK */
+                break;
+
+        next_entry:
+                CS_CHECK(GetNextTuple,
+                         pcmcia_get_next_tuple(link->handle, &tuple));
+        }
+
+        /* Need to allocate net_device before requesting IRQ handler */
+        dev = prism2_init_local_data(&prism2_pccard_funcs, 0);
+        if (dev == NULL)
+                goto failed;
+        link->priv = dev;
+
+        /*
+         * Allocate an interrupt line.  Note that this does not assign a
+         * handler to the interrupt, unless the 'Handler' member of the
+         * irq structure is initialized.
+         */
+        if (link->conf.Attributes & CONF_ENABLE_IRQ) {
+                int i;
+                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 = prism2_interrupt;
+                link->irq.Instance = dev;
+                CS_CHECK(RequestIRQ,
+                         pcmcia_request_irq(link->handle, &link->irq));
+        }
+
+        /*
+         * This actually configures the PCMCIA socket -- setting up
+         * the I/O windows and the interrupt mapping, and putting the
+         * card and host interface into "Memory and IO" mode.
+         */
+        CS_CHECK(RequestConfiguration,
+                 pcmcia_request_configuration(link->handle, &link->conf));
+
+        dev->irq = link->irq.AssignedIRQ;
+        dev->base_addr = link->io.BasePort1;
+
+        /* Finally, report what we've done */
+        printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
+               dev_info, link->conf.ConfigIndex,
+               link->conf.Vcc / 10, link->conf.Vcc % 10);
+        if (link->conf.Vpp1)
+                printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
+                       link->conf.Vpp1 % 10);
+        if (link->conf.Attributes & CONF_ENABLE_IRQ)
+                printk(", irq %d", link->irq.AssignedIRQ);
+        if (link->io.NumPorts1)
+                printk(", io 0x%04x-0x%04x", link->io.BasePort1,
+                       link->io.BasePort1+link->io.NumPorts1-1);
+        if (link->io.NumPorts2)
+                printk(" & 0x%04x-0x%04x", link->io.BasePort2,
+                       link->io.BasePort2+link->io.NumPorts2-1);
+        printk("\n");
+
+        link->state |= DEV_CONFIG;
+        link->state &= ~DEV_CONFIG_PENDING;
+
+        iface = netdev_priv(dev);
+        local = iface->local;
+        local->link = link;
+        strcpy(local->node.dev_name, dev->name);
+        link->dev = &local->node;
+
+        local->shutdown = 0;
+
+        sandisk_enable_wireless(dev);
+
+        ret = prism2_hw_config(dev, 1);
+        if (!ret) {
+                ret = hostap_hw_ready(dev);
+                if (ret == 0 && local->ddev)
+                        strcpy(local->node.dev_name, local->ddev->name);
+        }
+        kfree(parse);
+        return ret;
+
+ cs_failed:
+        cs_error(link->handle, last_fn, last_ret);
+
+ failed:
+        kfree(parse);
+        prism2_release((u_long)link);
+        return ret;
+}
+
+
+static void prism2_release(u_long arg)
+{
+        dev_link_t *link = (dev_link_t *)arg;
+
+        PDEBUG(DEBUG_FLOW, "prism2_release\n");
+
+        if (link->priv) {
+                struct net_device *dev = link->priv;
+                struct hostap_interface *iface;
+
+                iface = netdev_priv(dev);
+                if (link->state & DEV_CONFIG)
+                        prism2_hw_shutdown(dev, 0);
+                iface->local->shutdown = 1;
+        }
+
+        if (link->win)
+                pcmcia_release_window(link->win);
+        pcmcia_release_configuration(link->handle);
+        if (link->io.NumPorts1)
+                pcmcia_release_io(link->handle, &link->io);
+        if (link->irq.AssignedIRQ)
+                pcmcia_release_irq(link->handle, &link->irq);
+
+        link->state &= ~DEV_CONFIG;
+
+        PDEBUG(DEBUG_FLOW, "release - done\n");
+}
+
+
+static int prism2_event(event_t event, int priority,
+                        event_callback_args_t *args)
+{
+        dev_link_t *link = args->client_data;
+        struct net_device *dev = (struct net_device *) link->priv;
+
+        switch (event) {
+        case CS_EVENT_CARD_INSERTION:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info);
+                link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+                if (prism2_config(link)) {
+                        PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
+                }
+                break;
+
+        case CS_EVENT_CARD_REMOVAL:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info);
+                link->state &= ~DEV_PRESENT;
+                if (link->state & DEV_CONFIG) {
+                        netif_stop_queue(dev);
+                        netif_device_detach(dev);
+                        prism2_release((u_long) link);
+                }
+                break;
+
+        case CS_EVENT_PM_SUSPEND:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
+                link->state |= DEV_SUSPEND;
+                /* fall through */
+
+        case CS_EVENT_RESET_PHYSICAL:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info);
+                if (link->state & DEV_CONFIG) {
+                        if (link->open) {
+                                netif_stop_queue(dev);
+                                netif_device_detach(dev);
+                        }
+                        prism2_suspend(dev);
+                        pcmcia_release_configuration(link->handle);
+                }
+                break;
+
+        case CS_EVENT_PM_RESUME:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);
+                link->state &= ~DEV_SUSPEND;
+                /* fall through */
+
+        case CS_EVENT_CARD_RESET:
+                PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info);
+                if (link->state & DEV_CONFIG) {
+                        pcmcia_request_configuration(link->handle,
+                                                     &link->conf);
+                        prism2_hw_shutdown(dev, 1);
+                        prism2_hw_config(dev, link->open ? 0 : 1);
+                        if (link->open) {
+                                netif_device_attach(dev);
+                                netif_start_queue(dev);
+                        }
+                }
+                break;
+
+        default:
+                PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n",
+                       dev_info, event);
+                break;
+        }
+        return 0;
+}
+
+
+static struct pcmcia_driver hostap_driver = {
+        .drv            = {
+                .name   = "hostap_cs",
+        },
+        .attach         = prism2_attach,
+        .detach         = prism2_detach,
+        .owner          = THIS_MODULE,
+};
+
+static int __init init_prism2_pccard(void)
+{
+        printk(KERN_INFO "%s: %s\n", dev_info, version);
+        return pcmcia_register_driver(&hostap_driver);
+}
+
+static void __exit exit_prism2_pccard(void)
+{
+        pcmcia_unregister_driver(&hostap_driver);
+        printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
+}
+
+
+module_init(init_prism2_pccard);
+module_exit(exit_prism2_pccard);