Linux-2.6.12-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!
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
new file mode 100644
index 0000000..1433e5a
--- /dev/null
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -0,0 +1,2270 @@
+/*
+ * WL3501 Wireless LAN PCMCIA Card Driver for Linux
+ * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
+ * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
+ *
+ * References used by Fox Chen while writing the original driver for 2.0.30:
+ *
+ * 1. WL24xx packet drivers (tooasm.asm)
+ * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
+ * 3. IEEE 802.11
+ * 4. Linux network driver (/usr/src/linux/drivers/net)
+ * 5. ISA card driver - wl24.c
+ * 6. Linux PCMCIA skeleton driver - skeleton.c
+ * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
+ *
+ * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
+ * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
+ * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
+ * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
+ * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
+ *
+ * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
+ * 173 Kbytes/s in TCP.
+ *
+ * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
+ * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
+ */
+#undef REALLY_SLOW_IO /* most systems can safely undef this */
+
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/ethtool.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/fcntl.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/string.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 <asm/uaccess.h>
+#include <asm/system.h>
+
+#include "wl3501.h"
+
+#ifndef __i386__
+#define slow_down_io()
+#endif
+
+/* For rough constant delay */
+#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
+
+/*
+ * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not
+ * define PCMCIA_DEBUG at all, all the debug code will be left out. If you
+ * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled --
+ * but it can then be enabled for specific modules at load time with a
+ * 'pc_debug=#' option to insmod.
+ */
+#define PCMCIA_DEBUG 0
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0);
+#define dprintk(n, format, args...) \
+ { if (pc_debug > (n)) \
+ printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##args); }
+#else
+#define dprintk(n, format, args...)
+#endif
+
+#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
+#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
+#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
+
+#define WL3501_RELEASE_TIMEOUT (25 * HZ)
+#define WL3501_MAX_ADHOC_TRIES 16
+
+#define WL3501_RESUME 0
+#define WL3501_SUSPEND 1
+
+/*
+ * The event() function is this driver's Card Services event handler. It will
+ * be called by Card Services when an appropriate card status event is
+ * received. The config() and release() entry points are used to configure or
+ * release a socket, in response to card insertion and ejection events. They
+ * are invoked from the wl24 event handler.
+ */
+static void wl3501_config(dev_link_t *link);
+static void wl3501_release(dev_link_t *link);
+static int wl3501_event(event_t event, int pri, event_callback_args_t *args);
+
+/*
+ * The dev_info variable is the "key" that is used to match up this
+ * device driver with appropriate cards, through the card configuration
+ * database.
+ */
+static dev_info_t wl3501_dev_info = "wl3501_cs";
+
+static int wl3501_chan2freq[] = {
+ [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432,
+ [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457,
+ [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477,
+};
+
+static const struct {
+ int reg_domain;
+ int min, max, deflt;
+} iw_channel_table[] = {
+ {
+ .reg_domain = IW_REG_DOMAIN_FCC,
+ .min = 1,
+ .max = 11,
+ .deflt = 1,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_DOC,
+ .min = 1,
+ .max = 11,
+ .deflt = 1,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_ETSI,
+ .min = 1,
+ .max = 13,
+ .deflt = 1,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_SPAIN,
+ .min = 10,
+ .max = 11,
+ .deflt = 10,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_FRANCE,
+ .min = 10,
+ .max = 13,
+ .deflt = 10,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_MKK,
+ .min = 14,
+ .max = 14,
+ .deflt = 14,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_MKK1,
+ .min = 1,
+ .max = 14,
+ .deflt = 1,
+ },
+ {
+ .reg_domain = IW_REG_DOMAIN_ISRAEL,
+ .min = 3,
+ .max = 9,
+ .deflt = 9,
+ },
+};
+
+/**
+ * iw_valid_channel - validate channel in regulatory domain
+ * @reg_comain - regulatory domain
+ * @channel - channel to validate
+ *
+ * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
+ */
+static int iw_valid_channel(int reg_domain, int channel)
+{
+ int i, rc = 0;
+
+ for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
+ if (reg_domain == iw_channel_table[i].reg_domain) {
+ rc = channel >= iw_channel_table[i].min &&
+ channel <= iw_channel_table[i].max;
+ break;
+ }
+ return rc;
+}
+
+/**
+ * iw_default_channel - get default channel for a regulatory domain
+ * @reg_comain - regulatory domain
+ *
+ * Returns the default channel for a regulatory domain
+ */
+static int iw_default_channel(int reg_domain)
+{
+ int i, rc = 1;
+
+ for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
+ if (reg_domain == iw_channel_table[i].reg_domain) {
+ rc = iw_channel_table[i].deflt;
+ break;
+ }
+ return rc;
+}
+
+static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
+ struct iw_mgmt_info_element *el,
+ void *value, int len)
+{
+ el->id = id;
+ el->len = len;
+ memcpy(el->data, value, len);
+}
+
+static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
+ struct iw_mgmt_info_element *from)
+{
+ iw_set_mgmt_info_element(from->id, to, from->data, from->len);
+}
+
+/*
+ * A linked list of "instances" of the wl24 device. Each actual PCMCIA card
+ * corresponds to one device instance, and is described by one dev_link_t
+ * structure (defined in ds.h).
+ *
+ * You may not want to use a linked list for this -- for example, the memory
+ * card driver uses an array of dev_link_t pointers, where minor device numbers
+ * are used to derive the corresponding array index.
+ */
+static dev_link_t *wl3501_dev_list;
+
+static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
+{
+ wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
+}
+
+/*
+ * Get Ethernet MAC addresss.
+ *
+ * WARNING: We switch to FPAGE0 and switc back again.
+ * Making sure there is no other WL function beening called by ISR.
+ */
+static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
+{
+ int base_addr = this->base_addr;
+
+ /* get MAC addr */
+ wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
+ wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
+ wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
+
+ /* wait for reading EEPROM */
+ WL3501_NOPLOOP(100);
+ this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
+ wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
+ wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
+ WL3501_NOPLOOP(100);
+ this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
+ WL3501_NOPLOOP(100);
+ this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
+ /* switch to SRAM Page 0 (for safety) */
+ wl3501_switch_page(this, WL3501_BSS_SPAGE0);
+
+ /* The MAC addr should be 00:60:... */
+ return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
+}
+
+/**
+ * wl3501_set_to_wla - Move 'size' bytes from PC to card
+ * @dest: Card addressing space
+ * @src: PC addressing space
+ * @size: Bytes to move
+ *
+ * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
+ */
+void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, int size)
+{
+ /* switch to SRAM Page 0 */
+ wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
+ WL3501_BSS_SPAGE0);
+ /* set LMAL and LMAH */
+ wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
+ wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
+
+ /* rep out to Port A */
+ wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
+}
+
+/**
+ * wl3501_get_from_wla - Move 'size' bytes from card to PC
+ * @src: Card addressing space
+ * @dest: PC addressing space
+ * @size: Bytes to move
+ *
+ * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
+ */
+void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
+ int size)
+{
+ /* switch to SRAM Page 0 */
+ wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
+ WL3501_BSS_SPAGE0);
+ /* set LMAL and LMAH */
+ wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
+ wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
+
+ /* rep get from Port A */
+ insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
+}
+
+/*
+ * Get/Allocate a free Tx Data Buffer
+ *
+ * *--------------*-----------------*----------------------------------*
+ * | PLCP | MAC Header | DST SRC Data ... |
+ * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
+ * *--------------*-----------------*----------------------------------*
+ * \ \- IEEE 802.11 -/ \-------------- len --------------/
+ * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
+ *
+ * Return = Postion in Card
+ */
+static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
+{
+ u16 next, blk_cnt = 0, zero = 0;
+ u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
+ u16 ret = 0;
+
+ if (full_len > this->tx_buffer_cnt * 254)
+ goto out;
+ ret = this->tx_buffer_head;
+ while (full_len) {
+ if (full_len < 254)
+ full_len = 0;
+ else
+ full_len -= 254;
+ wl3501_get_from_wla(this, this->tx_buffer_head, &next,
+ sizeof(next));
+ if (!full_len)
+ wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
+ sizeof(zero));
+ this->tx_buffer_head = next;
+ blk_cnt++;
+ /* if buffer is not enough */
+ if (!next && full_len) {
+ this->tx_buffer_head = ret;
+ ret = 0;
+ goto out;
+ }
+ }
+ this->tx_buffer_cnt -= blk_cnt;
+out:
+ return ret;
+}
+
+/*
+ * Free an allocated Tx Buffer. ptr must be correct position.
+ */
+static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
+{
+ /* check if all space is not free */
+ if (!this->tx_buffer_head)
+ this->tx_buffer_head = ptr;
+ else
+ wl3501_set_to_wla(this, this->tx_buffer_tail,
+ &ptr, sizeof(ptr));
+ while (ptr) {
+ u16 next;
+
+ this->tx_buffer_cnt++;
+ wl3501_get_from_wla(this, ptr, &next, sizeof(next));
+ this->tx_buffer_tail = ptr;
+ ptr = next;
+ }
+}
+
+static int wl3501_esbq_req_test(struct wl3501_card *this)
+{
+ u8 tmp;
+
+ wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
+ return tmp & 0x80;
+}
+
+static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
+{
+ u16 tmp = 0;
+
+ wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
+ wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
+ this->esbq_req_head += 4;
+ if (this->esbq_req_head >= this->esbq_req_end)
+ this->esbq_req_head = this->esbq_req_start;
+}
+
+static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
+{
+ int rc = -EIO;
+
+ if (wl3501_esbq_req_test(this)) {
+ u16 ptr = wl3501_get_tx_buffer(this, sig_size);
+ if (ptr) {
+ wl3501_set_to_wla(this, ptr, sig, sig_size);
+ wl3501_esbq_req(this, &ptr);
+ rc = 0;
+ }
+ }
+ return rc;
+}
+
+static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
+ void *bf, int size)
+{
+ struct wl3501_get_req sig = {
+ .sig_id = WL3501_SIG_GET_REQ,
+ .mib_attrib = index,
+ };
+ unsigned long flags;
+ int rc = -EIO;
+
+ spin_lock_irqsave(&this->lock, flags);
+ if (wl3501_esbq_req_test(this)) {
+ u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
+ if (ptr) {
+ wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
+ wl3501_esbq_req(this, &ptr);
+ this->sig_get_confirm.mib_status = 255;
+ spin_unlock_irqrestore(&this->lock, flags);
+ rc = wait_event_interruptible(this->wait,
+ this->sig_get_confirm.mib_status != 255);
+ if (!rc)
+ memcpy(bf, this->sig_get_confirm.mib_value,
+ size);
+ goto out;
+ }
+ }
+ spin_unlock_irqrestore(&this->lock, flags);
+out:
+ return rc;
+}
+
+static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
+{
+ struct wl3501_pwr_mgmt_req sig = {
+ .sig_id = WL3501_SIG_PWR_MGMT_REQ,
+ .pwr_save = suspend,
+ .wake_up = !suspend,
+ .receive_dtims = 10,
+ };
+ unsigned long flags;
+ int rc = -EIO;
+
+ spin_lock_irqsave(&this->lock, flags);
+ if (wl3501_esbq_req_test(this)) {
+ u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
+ if (ptr) {
+ wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
+ wl3501_esbq_req(this, &ptr);
+ this->sig_pwr_mgmt_confirm.status = 255;
+ spin_unlock_irqrestore(&this->lock, flags);
+ rc = wait_event_interruptible(this->wait,
+ this->sig_pwr_mgmt_confirm.status != 255);
+ printk(KERN_INFO "%s: %s status=%d\n", __FUNCTION__,
+ suspend ? "suspend" : "resume",
+ this->sig_pwr_mgmt_confirm.status);
+ goto out;
+ }
+ }
+ spin_unlock_irqrestore(&this->lock, flags);
+out:
+ return rc;
+}
+
+/**
+ * wl3501_send_pkt - Send a packet.
+ * @this - card
+ *
+ * Send a packet.
+ *
+ * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
+ * data[6] - data[11] is Src MAC Addr)
+ * Ref: IEEE 802.11
+ */
+static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
+{
+ u16 bf, sig_bf, next, tmplen, pktlen;
+ struct wl3501_md_req sig = {
+ .sig_id = WL3501_SIG_MD_REQ,
+ };
+ u8 *pdata = (char *)data;
+ int rc = -EIO;
+
+ if (wl3501_esbq_req_test(this)) {
+ sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
+ rc = -ENOMEM;
+ if (!sig_bf) /* No free buffer available */
+ goto out;
+ bf = wl3501_get_tx_buffer(this, len + 26 + 24);
+ if (!bf) {
+ /* No free buffer available */
+ wl3501_free_tx_buffer(this, sig_bf);
+ goto out;
+ }
+ rc = 0;
+ memcpy(&sig.daddr[0], pdata, 12);
+ pktlen = len - 12;
+ pdata += 12;
+ sig.data = bf;
+ if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
+ u8 addr4[ETH_ALEN] = {
+ [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
+ };
+
+ wl3501_set_to_wla(this, bf + 2 +
+ offsetof(struct wl3501_tx_hdr, addr4),
+ addr4, sizeof(addr4));
+ sig.size = pktlen + 24 + 4 + 6;
+ if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
+ tmplen = 254 - sizeof(struct wl3501_tx_hdr);
+ pktlen -= tmplen;
+ } else {
+ tmplen = pktlen;
+ pktlen = 0;
+ }
+ wl3501_set_to_wla(this,
+ bf + 2 + sizeof(struct wl3501_tx_hdr),
+ pdata, tmplen);
+ pdata += tmplen;
+ wl3501_get_from_wla(this, bf, &next, sizeof(next));
+ bf = next;
+ } else {
+ sig.size = pktlen + 24 + 4 - 2;
+ pdata += 2;
+ pktlen -= 2;
+ if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
+ tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
+ pktlen -= tmplen;
+ } else {
+ tmplen = pktlen;
+ pktlen = 0;
+ }
+ wl3501_set_to_wla(this, bf + 2 +
+ offsetof(struct wl3501_tx_hdr, addr4),
+ pdata, tmplen);
+ pdata += tmplen;
+ wl3501_get_from_wla(this, bf, &next, sizeof(next));
+ bf = next;
+ }
+ while (pktlen > 0) {
+ if (pktlen > 254) {
+ tmplen = 254;
+ pktlen -= 254;
+ } else {
+ tmplen = pktlen;
+ pktlen = 0;
+ }
+ wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
+ pdata += tmplen;
+ wl3501_get_from_wla(this, bf, &next, sizeof(next));
+ bf = next;
+ }
+ wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
+ wl3501_esbq_req(this, &sig_bf);
+ }
+out:
+ return rc;
+}
+
+static int wl3501_mgmt_resync(struct wl3501_card *this)
+{
+ struct wl3501_resync_req sig = {
+ .sig_id = WL3501_SIG_RESYNC_REQ,
+ };
+
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static inline int wl3501_fw_bss_type(struct wl3501_card *this)
+{
+ return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
+ WL3501_NET_TYPE_ADHOC;
+}
+
+static inline int wl3501_fw_cap_info(struct wl3501_card *this)
+{
+ return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
+ WL3501_MGMT_CAPABILITY_IBSS;
+}
+
+static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
+{
+ struct wl3501_scan_req sig = {
+ .sig_id = WL3501_SIG_SCAN_REQ,
+ .scan_type = WL3501_SCAN_TYPE_ACTIVE,
+ .probe_delay = 0x10,
+ .min_chan_time = chan_time,
+ .max_chan_time = chan_time,
+ .bss_type = wl3501_fw_bss_type(this),
+ };
+
+ this->bss_cnt = this->join_sta_bss = 0;
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
+{
+ struct wl3501_join_req sig = {
+ .sig_id = WL3501_SIG_JOIN_REQ,
+ .timeout = 10,
+ .ds_pset = {
+ .el = {
+ .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
+ .len = 1,
+ },
+ .chan = this->chan,
+ },
+ };
+
+ memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static int wl3501_mgmt_start(struct wl3501_card *this)
+{
+ struct wl3501_start_req sig = {
+ .sig_id = WL3501_SIG_START_REQ,
+ .beacon_period = 400,
+ .dtim_period = 1,
+ .ds_pset = {
+ .el = {
+ .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
+ .len = 1,
+ },
+ .chan = this->chan,
+ },
+ .bss_basic_rset = {
+ .el = {
+ .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
+ .len = 2,
+ },
+ .data_rate_labels = {
+ [0] = IW_MGMT_RATE_LABEL_MANDATORY |
+ IW_MGMT_RATE_LABEL_1MBIT,
+ [1] = IW_MGMT_RATE_LABEL_MANDATORY |
+ IW_MGMT_RATE_LABEL_2MBIT,
+ },
+ },
+ .operational_rset = {
+ .el = {
+ .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
+ .len = 2,
+ },
+ .data_rate_labels = {
+ [0] = IW_MGMT_RATE_LABEL_MANDATORY |
+ IW_MGMT_RATE_LABEL_1MBIT,
+ [1] = IW_MGMT_RATE_LABEL_MANDATORY |
+ IW_MGMT_RATE_LABEL_2MBIT,
+ },
+ },
+ .ibss_pset = {
+ .el = {
+ .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
+ .len = 2,
+ },
+ .atim_window = 10,
+ },
+ .bss_type = wl3501_fw_bss_type(this),
+ .cap_info = wl3501_fw_cap_info(this),
+ };
+
+ iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
+ iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
+{
+ u16 i = 0;
+ int matchflag = 0;
+ struct wl3501_scan_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+ if (sig.status == WL3501_STATUS_SUCCESS) {
+ dprintk(3, "success");
+ if ((this->net_type == IW_MODE_INFRA &&
+ (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
+ (this->net_type == IW_MODE_ADHOC &&
+ (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
+ this->net_type == IW_MODE_AUTO) {
+ if (!this->essid.el.len)
+ matchflag = 1;
+ else if (this->essid.el.len == 3 &&
+ !memcmp(this->essid.essid, "ANY", 3))
+ matchflag = 1;
+ else if (this->essid.el.len != sig.ssid.el.len)
+ matchflag = 0;
+ else if (memcmp(this->essid.essid, sig.ssid.essid,
+ this->essid.el.len))
+ matchflag = 0;
+ else
+ matchflag = 1;
+ if (matchflag) {
+ for (i = 0; i < this->bss_cnt; i++) {
+ if (!memcmp(this->bss_set[i].bssid,
+ sig.bssid, ETH_ALEN)) {
+ matchflag = 0;
+ break;
+ }
+ }
+ }
+ if (matchflag && (i < 20)) {
+ memcpy(&this->bss_set[i].beacon_period,
+ &sig.beacon_period, 73);
+ this->bss_cnt++;
+ this->rssi = sig.rssi;
+ }
+ }
+ } else if (sig.status == WL3501_STATUS_TIMEOUT) {
+ dprintk(3, "timeout");
+ this->join_sta_bss = 0;
+ for (i = this->join_sta_bss; i < this->bss_cnt; i++)
+ if (!wl3501_mgmt_join(this, i))
+ break;
+ this->join_sta_bss = i;
+ if (this->join_sta_bss == this->bss_cnt) {
+ if (this->net_type == IW_MODE_INFRA)
+ wl3501_mgmt_scan(this, 100);
+ else {
+ this->adhoc_times++;
+ if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
+ wl3501_mgmt_start(this);
+ else
+ wl3501_mgmt_scan(this, 100);
+ }
+ }
+ }
+}
+
+/**
+ * wl3501_block_interrupt - Mask interrupt from SUTRO
+ * @this - card
+ *
+ * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
+ * Return: 1 if interrupt is originally enabled
+ */
+static int wl3501_block_interrupt(struct wl3501_card *this)
+{
+ u8 old = inb(this->base_addr + WL3501_NIC_GCR);
+ u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
+ WL3501_GCR_ENECINT));
+
+ wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
+ return old & WL3501_GCR_ENECINT;
+}
+
+/**
+ * wl3501_unblock_interrupt - Enable interrupt from SUTRO
+ * @this - card
+ *
+ * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
+ * Return: 1 if interrupt is originally enabled
+ */
+static int wl3501_unblock_interrupt(struct wl3501_card *this)
+{
+ u8 old = inb(this->base_addr + WL3501_NIC_GCR);
+ u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
+ WL3501_GCR_ENECINT;
+
+ wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
+ return old & WL3501_GCR_ENECINT;
+}
+
+/**
+ * wl3501_receive - Receive data from Receive Queue.
+ *
+ * Receive data from Receive Queue.
+ *
+ * @this: card
+ * @bf: address of host
+ * @size: size of buffer.
+ */
+static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
+{
+ u16 next_addr, next_addr1;
+ u8 *data = bf + 12;
+
+ size -= 12;
+ wl3501_get_from_wla(this, this->start_seg + 2,
+ &next_addr, sizeof(next_addr));
+ if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
+ wl3501_get_from_wla(this,
+ this->start_seg +
+ sizeof(struct wl3501_rx_hdr), data,
+ WL3501_BLKSZ -
+ sizeof(struct wl3501_rx_hdr));
+ size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
+ data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
+ } else {
+ wl3501_get_from_wla(this,
+ this->start_seg +
+ sizeof(struct wl3501_rx_hdr),
+ data, size);
+ size = 0;
+ }
+ while (size > 0) {
+ if (size > WL3501_BLKSZ - 5) {
+ wl3501_get_from_wla(this, next_addr + 5, data,
+ WL3501_BLKSZ - 5);
+ size -= WL3501_BLKSZ - 5;
+ data += WL3501_BLKSZ - 5;
+ wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
+ sizeof(next_addr1));
+ next_addr = next_addr1;
+ } else {
+ wl3501_get_from_wla(this, next_addr + 5, data, size);
+ size = 0;
+ }
+ }
+ return 0;
+}
+
+static void wl3501_esbq_req_free(struct wl3501_card *this)
+{
+ u8 tmp;
+ u16 addr;
+
+ if (this->esbq_req_head == this->esbq_req_tail)
+ goto out;
+ wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
+ if (!(tmp & 0x80))
+ goto out;
+ wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
+ wl3501_free_tx_buffer(this, addr);
+ this->esbq_req_tail += 4;
+ if (this->esbq_req_tail >= this->esbq_req_end)
+ this->esbq_req_tail = this->esbq_req_start;
+out:
+ return;
+}
+
+static int wl3501_esbq_confirm(struct wl3501_card *this)
+{
+ u8 tmp;
+
+ wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
+ return tmp & 0x80;
+}
+
+static void wl3501_online(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+
+ printk(KERN_INFO "%s: Wireless LAN online. BSSID: "
+ "%02X %02X %02X %02X %02X %02X\n", dev->name,
+ this->bssid[0], this->bssid[1], this->bssid[2],
+ this->bssid[3], this->bssid[4], this->bssid[5]);
+ netif_wake_queue(dev);
+}
+
+static void wl3501_esbq_confirm_done(struct wl3501_card *this)
+{
+ u8 tmp = 0;
+
+ wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
+ this->esbq_confirm += 4;
+ if (this->esbq_confirm >= this->esbq_confirm_end)
+ this->esbq_confirm = this->esbq_confirm_start;
+}
+
+static int wl3501_mgmt_auth(struct wl3501_card *this)
+{
+ struct wl3501_auth_req sig = {
+ .sig_id = WL3501_SIG_AUTH_REQ,
+ .type = WL3501_SYS_TYPE_OPEN,
+ .timeout = 1000,
+ };
+
+ dprintk(3, "entry");
+ memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static int wl3501_mgmt_association(struct wl3501_card *this)
+{
+ struct wl3501_assoc_req sig = {
+ .sig_id = WL3501_SIG_ASSOC_REQ,
+ .timeout = 1000,
+ .listen_interval = 5,
+ .cap_info = this->cap_info,
+ };
+
+ dprintk(3, "entry");
+ memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
+ return wl3501_esbq_exec(this, &sig, sizeof(sig));
+}
+
+static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
+{
+ struct wl3501_card *this = dev->priv;
+ struct wl3501_join_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+ if (sig.status == WL3501_STATUS_SUCCESS) {
+ if (this->net_type == IW_MODE_INFRA) {
+ if (this->join_sta_bss < this->bss_cnt) {
+ const int i = this->join_sta_bss;
+ memcpy(this->bssid,
+ this->bss_set[i].bssid, ETH_ALEN);
+ this->chan = this->bss_set[i].ds_pset.chan;
+ iw_copy_mgmt_info_element(&this->keep_essid.el,
+ &this->bss_set[i].ssid.el);
+ wl3501_mgmt_auth(this);
+ }
+ } else {
+ const int i = this->join_sta_bss;
+
+ memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
+ this->chan = this->bss_set[i].ds_pset.chan;
+ iw_copy_mgmt_info_element(&this->keep_essid.el,
+ &this->bss_set[i].ssid.el);
+ wl3501_online(dev);
+ }
+ } else {
+ int i;
+ this->join_sta_bss++;
+ for (i = this->join_sta_bss; i < this->bss_cnt; i++)
+ if (!wl3501_mgmt_join(this, i))
+ break;
+ this->join_sta_bss = i;
+ if (this->join_sta_bss == this->bss_cnt) {
+ if (this->net_type == IW_MODE_INFRA)
+ wl3501_mgmt_scan(this, 100);
+ else {
+ this->adhoc_times++;
+ if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
+ wl3501_mgmt_start(this);
+ else
+ wl3501_mgmt_scan(this, 100);
+ }
+ }
+ }
+}
+
+static inline void wl3501_alarm_interrupt(struct net_device *dev,
+ struct wl3501_card *this)
+{
+ if (this->net_type == IW_MODE_INFRA) {
+ printk(KERN_INFO "Wireless LAN offline\n");
+ netif_stop_queue(dev);
+ wl3501_mgmt_resync(this);
+ }
+}
+
+static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
+ struct wl3501_card *this,
+ u16 addr)
+{
+ struct wl3501_md_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+ wl3501_free_tx_buffer(this, sig.data);
+ if (netif_queue_stopped(dev))
+ netif_wake_queue(dev);
+}
+
+static inline void wl3501_md_ind_interrupt(struct net_device *dev,
+ struct wl3501_card *this, u16 addr)
+{
+ struct wl3501_md_ind sig;
+ struct sk_buff *skb;
+ u8 rssi, addr4[ETH_ALEN];
+ u16 pkt_len;
+
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+ this->start_seg = sig.data;
+ wl3501_get_from_wla(this,
+ sig.data + offsetof(struct wl3501_rx_hdr, rssi),
+ &rssi, sizeof(rssi));
+ this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
+
+ wl3501_get_from_wla(this,
+ sig.data +
+ offsetof(struct wl3501_rx_hdr, addr4),
+ &addr4, sizeof(addr4));
+ if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
+ addr4[2] == 0x03 && addr4[4] == 0x00)) {
+ printk(KERN_INFO "Insupported packet type!\n");
+ return;
+ }
+ pkt_len = sig.size + 12 - 24 - 4 - 6;
+
+ skb = dev_alloc_skb(pkt_len + 5);
+
+ if (!skb) {
+ printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
+ dev->name, pkt_len);
+ this->stats.rx_dropped++;
+ } else {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
+ eth_copy_and_sum(skb, (unsigned char *)&sig.daddr, 12, 0);
+ wl3501_receive(this, skb->data, pkt_len);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, dev);
+ dev->last_rx = jiffies;
+ this->stats.rx_packets++;
+ this->stats.rx_bytes += skb->len;
+ netif_rx(skb);
+ }
+}
+
+static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
+ u16 addr, void *sig, int size)
+{
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
+ sizeof(this->sig_get_confirm));
+ wake_up(&this->wait);
+}
+
+static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
+ struct wl3501_card *this,
+ u16 addr)
+{
+ struct wl3501_start_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+ if (sig.status == WL3501_STATUS_SUCCESS)
+ netif_wake_queue(dev);
+}
+
+static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
+ u16 addr)
+{
+ struct wl3501_card *this = dev->priv;
+ struct wl3501_assoc_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+
+ if (sig.status == WL3501_STATUS_SUCCESS)
+ wl3501_online(dev);
+}
+
+static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
+ u16 addr)
+{
+ struct wl3501_auth_confirm sig;
+
+ dprintk(3, "entry");
+ wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
+
+ if (sig.status == WL3501_STATUS_SUCCESS)
+ wl3501_mgmt_association(this);
+ else
+ wl3501_mgmt_resync(this);
+}
+
+static inline void wl3501_rx_interrupt(struct net_device *dev)
+{
+ int morepkts;
+ u16 addr;
+ u8 sig_id;
+ struct wl3501_card *this = dev->priv;
+
+ dprintk(3, "entry");
+loop:
+ morepkts = 0;
+ if (!wl3501_esbq_confirm(this))
+ goto free;
+ wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
+ wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
+
+ switch (sig_id) {
+ case WL3501_SIG_DEAUTH_IND:
+ case WL3501_SIG_DISASSOC_IND:
+ case WL3501_SIG_ALARM:
+ wl3501_alarm_interrupt(dev, this);
+ break;
+ case WL3501_SIG_MD_CONFIRM:
+ wl3501_md_confirm_interrupt(dev, this, addr);
+ break;
+ case WL3501_SIG_MD_IND:
+ wl3501_md_ind_interrupt(dev, this, addr);
+ break;
+ case WL3501_SIG_GET_CONFIRM:
+ wl3501_get_confirm_interrupt(this, addr,
+ &this->sig_get_confirm,
+ sizeof(this->sig_get_confirm));
+ break;
+ case WL3501_SIG_PWR_MGMT_CONFIRM:
+ wl3501_get_confirm_interrupt(this, addr,
+ &this->sig_pwr_mgmt_confirm,
+ sizeof(this->sig_pwr_mgmt_confirm));
+ break;
+ case WL3501_SIG_START_CONFIRM:
+ wl3501_start_confirm_interrupt(dev, this, addr);
+ break;
+ case WL3501_SIG_SCAN_CONFIRM:
+ wl3501_mgmt_scan_confirm(this, addr);
+ break;
+ case WL3501_SIG_JOIN_CONFIRM:
+ wl3501_mgmt_join_confirm(dev, addr);
+ break;
+ case WL3501_SIG_ASSOC_CONFIRM:
+ wl3501_assoc_confirm_interrupt(dev, addr);
+ break;
+ case WL3501_SIG_AUTH_CONFIRM:
+ wl3501_auth_confirm_interrupt(this, addr);
+ break;
+ case WL3501_SIG_RESYNC_CONFIRM:
+ wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
+ break;
+ }
+ wl3501_esbq_confirm_done(this);
+ morepkts = 1;
+ /* free request if necessary */
+free:
+ wl3501_esbq_req_free(this);
+ if (morepkts)
+ goto loop;
+}
+
+static inline void wl3501_ack_interrupt(struct wl3501_card *this)
+{
+ wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
+}
+
+/**
+ * wl3501_interrupt - Hardware interrupt from card.
+ * @irq - Interrupt number
+ * @dev_id - net_device
+ * @regs - registers
+ *
+ * We must acknowledge the interrupt as soon as possible, and block the
+ * interrupt from the same card immediately to prevent re-entry.
+ *
+ * Before accessing the Control_Status_Block, we must lock SUTRO first.
+ * On the other hand, to prevent SUTRO from malfunctioning, we must
+ * unlock the SUTRO as soon as possible.
+ */
+static irqreturn_t wl3501_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct net_device *dev = (struct net_device *)dev_id;
+ struct wl3501_card *this;
+ int handled = 1;
+
+ if (!dev)
+ goto unknown;
+ this = dev->priv;
+ spin_lock(&this->lock);
+ wl3501_ack_interrupt(this);
+ wl3501_block_interrupt(this);
+ wl3501_rx_interrupt(dev);
+ wl3501_unblock_interrupt(this);
+ spin_unlock(&this->lock);
+out:
+ return IRQ_RETVAL(handled);
+unknown:
+ handled = 0;
+ printk(KERN_ERR "%s: irq %d for unknown device.\n", __FUNCTION__, irq);
+ goto out;
+}
+
+static int wl3501_reset_board(struct wl3501_card *this)
+{
+ u8 tmp = 0;
+ int i, rc = 0;
+
+ /* Coreset */
+ wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
+ wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
+ wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
+
+ /* Reset SRAM 0x480 to zero */
+ wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
+
+ /* Start up */
+ wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
+
+ WL3501_NOPLOOP(1024 * 50);
+
+ wl3501_unblock_interrupt(this); /* acme: was commented */
+
+ /* Polling Self_Test_Status */
+ for (i = 0; i < 10000; i++) {
+ wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
+
+ if (tmp == 'W') {
+ /* firmware complete all test successfully */
+ tmp = 'A';
+ wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
+ goto out;
+ }
+ WL3501_NOPLOOP(10);
+ }
+ printk(KERN_WARNING "%s: failed to reset the board!\n", __FUNCTION__);
+ rc = -ENODEV;
+out:
+ return rc;
+}
+
+static int wl3501_init_firmware(struct wl3501_card *this)
+{
+ u16 ptr, next;
+ int rc = wl3501_reset_board(this);
+
+ if (rc)
+ goto fail;
+ this->card_name[0] = '\0';
+ wl3501_get_from_wla(this, 0x1a00,
+ this->card_name, sizeof(this->card_name));
+ this->card_name[sizeof(this->card_name) - 1] = '\0';
+ this->firmware_date[0] = '\0';
+ wl3501_get_from_wla(this, 0x1a40,
+ this->firmware_date, sizeof(this->firmware_date));
+ this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
+ /* Switch to SRAM Page 0 */
+ wl3501_switch_page(this, WL3501_BSS_SPAGE0);
+ /* Read parameter from card */
+ wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
+ wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
+ wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
+ wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
+ wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
+ wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
+ this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
+ this->esbq_req_end += this->esbq_req_start;
+ this->esbq_confirm = this->esbq_confirm_start;
+ this->esbq_confirm_end += this->esbq_confirm_start;
+ /* Initial Tx Buffer */
+ this->tx_buffer_cnt = 1;
+ ptr = this->tx_buffer_head;
+ next = ptr + WL3501_BLKSZ;
+ while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
+ this->tx_buffer_cnt++;
+ wl3501_set_to_wla(this, ptr, &next, sizeof(next));
+ ptr = next;
+ next = ptr + WL3501_BLKSZ;
+ }
+ rc = 0;
+ next = 0;
+ wl3501_set_to_wla(this, ptr, &next, sizeof(next));
+ this->tx_buffer_tail = ptr;
+out:
+ return rc;
+fail:
+ printk(KERN_WARNING "%s: failed!\n", __FUNCTION__);
+ goto out;
+}
+
+static int wl3501_close(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+ int rc = -ENODEV;
+ unsigned long flags;
+ dev_link_t *link;
+
+ spin_lock_irqsave(&this->lock, flags);
+ /* Check if the device is in wl3501_dev_list */
+ for (link = wl3501_dev_list; link; link = link->next)
+ if (link->priv == dev)
+ break;
+ if (!link)
+ goto out;
+ link->open--;
+
+ /* Stop wl3501_hard_start_xmit() from now on */
+ netif_stop_queue(dev);
+ wl3501_ack_interrupt(this);
+
+ /* Mask interrupts from the SUTRO */
+ wl3501_block_interrupt(this);
+
+ rc = 0;
+ printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
+out:
+ spin_unlock_irqrestore(&this->lock, flags);
+ return rc;
+}
+
+/**
+ * wl3501_reset - Reset the SUTRO.
+ * @dev - network device
+ *
+ * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
+ * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
+ * is running. It seems to be dangerous.
+ */
+static int wl3501_reset(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+ int rc = -ENODEV;
+
+ wl3501_block_interrupt(this);
+
+ if (wl3501_init_firmware(this)) {
+ printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
+ dev->name);
+ /* Free IRQ, and mark IRQ as unused */
+ free_irq(dev->irq, dev);
+ goto out;
+ }
+
+ /*
+ * Queue has to be started only when the Card is Started
+ */
+ netif_stop_queue(dev);
+ this->adhoc_times = 0;
+ wl3501_ack_interrupt(this);
+ wl3501_unblock_interrupt(this);
+ wl3501_mgmt_scan(this, 100);
+ dprintk(1, "%s: device reset", dev->name);
+ rc = 0;
+out:
+ return rc;
+}
+
+static void wl3501_tx_timeout(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+ struct net_device_stats *stats = &this->stats;
+ unsigned long flags;
+ int rc;
+
+ stats->tx_errors++;
+ spin_lock_irqsave(&this->lock, flags);
+ rc = wl3501_reset(dev);
+ spin_unlock_irqrestore(&this->lock, flags);
+ if (rc)
+ printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
+ dev->name, rc);
+ else {
+ dev->trans_start = jiffies;
+ netif_wake_queue(dev);
+ }
+}
+
+/*
+ * Return : 0 - OK
+ * 1 - Could not transmit (dev_queue_xmit will queue it)
+ * and try to sent it later
+ */
+static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ int enabled, rc;
+ struct wl3501_card *this = dev->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&this->lock, flags);
+ enabled = wl3501_block_interrupt(this);
+ dev->trans_start = jiffies;
+ rc = wl3501_send_pkt(this, skb->data, skb->len);
+ if (enabled)
+ wl3501_unblock_interrupt(this);
+ if (rc) {
+ ++this->stats.tx_dropped;
+ netif_stop_queue(dev);
+ } else {
+ ++this->stats.tx_packets;
+ this->stats.tx_bytes += skb->len;
+ kfree_skb(skb);
+
+ if (this->tx_buffer_cnt < 2)
+ netif_stop_queue(dev);
+ }
+ spin_unlock_irqrestore(&this->lock, flags);
+ return rc;
+}
+
+static int wl3501_open(struct net_device *dev)
+{
+ int rc = -ENODEV;
+ struct wl3501_card *this = dev->priv;
+ unsigned long flags;
+ dev_link_t *link;
+
+ spin_lock_irqsave(&this->lock, flags);
+ /* Check if the device is in wl3501_dev_list */
+ for (link = wl3501_dev_list; link; link = link->next)
+ if (link->priv == dev)
+ break;
+ if (!DEV_OK(link))
+ goto out;
+ netif_device_attach(dev);
+ link->open++;
+
+ /* Initial WL3501 firmware */
+ dprintk(1, "%s: Initialize WL3501 firmware...", dev->name);
+ if (wl3501_init_firmware(this))
+ goto fail;
+ /* Initial device variables */
+ this->adhoc_times = 0;
+ /* Acknowledge Interrupt, for cleaning last state */
+ wl3501_ack_interrupt(this);
+
+ /* Enable interrupt from card after all */
+ wl3501_unblock_interrupt(this);
+ wl3501_mgmt_scan(this, 100);
+ rc = 0;
+ dprintk(1, "%s: WL3501 opened", dev->name);
+ printk(KERN_INFO "%s: Card Name: %s\n"
+ "%s: Firmware Date: %s\n",
+ dev->name, this->card_name,
+ dev->name, this->firmware_date);
+out:
+ spin_unlock_irqrestore(&this->lock, flags);
+ return rc;
+fail:
+ printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
+ goto out;
+}
+
+struct net_device_stats *wl3501_get_stats(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+
+ return &this->stats;
+}
+
+struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
+{
+ struct wl3501_card *this = dev->priv;
+ struct iw_statistics *wstats = &this->wstats;
+ u32 value; /* size checked: it is u32 */
+
+ memset(wstats, 0, sizeof(*wstats));
+ wstats->status = netif_running(dev);
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.code += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.code += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.code += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.retries = value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.misc += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.misc += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.misc += value;
+ if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
+ &value, sizeof(value)))
+ wstats->discard.misc += value;
+ return wstats;
+}
+
+static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
+}
+
+static struct ethtool_ops ops = {
+ .get_drvinfo = wl3501_get_drvinfo
+};
+
+/**
+ * wl3501_detach - deletes a driver "instance"
+ * @link - FILL_IN
+ *
+ * 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 wl3501_detach(dev_link_t *link)
+{
+ dev_link_t **linkp;
+
+ /* Locate device structure */
+ for (linkp = &wl3501_dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link)
+ break;
+ if (!*linkp)
+ goto out;
+
+ /* If the device is currently configured and active, we won't actually
+ * delete it yet. Instead, it is marked so that when the release()
+ * function is called, that will trigger a proper detach(). */
+
+ if (link->state & DEV_CONFIG) {
+#ifdef PCMCIA_DEBUG
+ printk(KERN_DEBUG "wl3501_cs: detach postponed, '%s' "
+ "still locked\n", link->dev->dev_name);
+#endif
+ goto out;
+ }
+
+ /* Break the link with Card Services */
+ if (link->handle)
+ pcmcia_deregister_client(link->handle);
+
+ /* Unlink device structure, free pieces */
+ *linkp = link->next;
+
+ if (link->priv)
+ free_netdev(link->priv);
+ kfree(link);
+out:
+ return;
+}
+
+static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
+ return 0;
+}
+
+static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+ int channel = wrqu->freq.m;
+ int rc = -EINVAL;
+
+ if (iw_valid_channel(this->reg_domain, channel)) {
+ this->chan = channel;
+ rc = wl3501_reset(dev);
+ }
+ return rc;
+}
+
+static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000;
+ wrqu->freq.e = 1;
+ return 0;
+}
+
+static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ int rc = -EINVAL;
+
+ if (wrqu->mode == IW_MODE_INFRA ||
+ wrqu->mode == IW_MODE_ADHOC ||
+ wrqu->mode == IW_MODE_AUTO) {
+ struct wl3501_card *this = dev->priv;
+
+ this->net_type = wrqu->mode;
+ rc = wl3501_reset(dev);
+ }
+ return rc;
+}
+
+static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ wrqu->mode = this->net_type;
+ return 0;
+}
+
+static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ wrqu->sens.value = this->rssi;
+ wrqu->sens.disabled = !wrqu->sens.value;
+ wrqu->sens.fixed = 1;
+ return 0;
+}
+
+static int wl3501_get_range(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct iw_range *range = (struct iw_range *)extra;
+
+ /* Set the length (very important for backward compatibility) */
+ wrqu->data.length = sizeof(*range);
+
+ /* Set all the info we don't care or don't know about to zero */
+ memset(range, 0, sizeof(*range));
+
+ /* Set the Wireless Extension versions */
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = 1;
+ range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
+ /* FIXME: study the code to fill in more fields... */
+ return 0;
+}
+
+static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+ static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
+ int rc = -EINVAL;
+
+ /* FIXME: we support other ARPHRDs...*/
+ if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
+ goto out;
+ if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+ /* FIXME: rescan? */
+ } else
+ memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
+ /* FIXME: rescan? deassoc & scan? */
+ rc = 0;
+out:
+ return rc;
+}
+
+static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ wrqu->ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
+ return 0;
+}
+
+static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ /*
+ * FIXME: trigger scanning with a reset, yes, I'm lazy
+ */
+ return wl3501_reset(dev);
+}
+
+static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+ int i;
+ char *current_ev = extra;
+ struct iw_event iwe;
+
+ for (i = 0; i < this->bss_cnt; ++i) {
+ iwe.cmd = SIOCGIWAP;
+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
+ current_ev = iwe_stream_add_event(current_ev,
+ extra + IW_SCAN_MAX_DATA,
+ &iwe, IW_EV_ADDR_LEN);
+ iwe.cmd = SIOCGIWESSID;
+ iwe.u.data.flags = 1;
+ iwe.u.data.length = this->bss_set[i].ssid.el.len;
+ current_ev = iwe_stream_add_point(current_ev,
+ extra + IW_SCAN_MAX_DATA,
+ &iwe,
+ this->bss_set[i].ssid.essid);
+ iwe.cmd = SIOCGIWMODE;
+ iwe.u.mode = this->bss_set[i].bss_type;
+ current_ev = iwe_stream_add_event(current_ev,
+ extra + IW_SCAN_MAX_DATA,
+ &iwe, IW_EV_UINT_LEN);
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
+ iwe.u.freq.e = 0;
+ current_ev = iwe_stream_add_event(current_ev,
+ extra + IW_SCAN_MAX_DATA,
+ &iwe, IW_EV_FREQ_LEN);
+ iwe.cmd = SIOCGIWENCODE;
+ if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+ else
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ iwe.u.data.length = 0;
+ current_ev = iwe_stream_add_point(current_ev,
+ extra + IW_SCAN_MAX_DATA,
+ &iwe, NULL);
+ }
+ /* Length of data */
+ wrqu->data.length = (current_ev - extra);
+ wrqu->data.flags = 0; /* FIXME: set properly these flags */
+ return 0;
+}
+
+static int wl3501_set_essid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ if (wrqu->data.flags) {
+ iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
+ &this->essid.el,
+ extra, wrqu->data.length);
+ } else { /* We accept any ESSID */
+ iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
+ &this->essid.el, "ANY", 3);
+ }
+ return wl3501_reset(dev);
+}
+
+static int wl3501_get_essid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&this->lock, flags);
+ wrqu->essid.flags = 1;
+ wrqu->essid.length = this->essid.el.len;
+ memcpy(extra, this->essid.essid, this->essid.el.len);
+ spin_unlock_irqrestore(&this->lock, flags);
+ return 0;
+}
+
+static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ if (wrqu->data.length > sizeof(this->nick))
+ return -E2BIG;
+ strlcpy(this->nick, extra, wrqu->data.length);
+ return 0;
+}
+
+static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct wl3501_card *this = dev->priv;
+
+ strlcpy(extra, this->nick, 32);
+ wrqu->data.length = strlen(extra);
+ return 0;
+}
+
+static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ /*
+ * FIXME: have to see from where to get this info, perhaps this card
+ * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
+ * common with the Planet Access Points. -acme
+ */
+ wrqu->bitrate.value = 2000000;
+ wrqu->bitrate.fixed = 1;
+ return 0;
+}
+
+static int wl3501_get_rts_threshold(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u16 threshold; /* size checked: it is u16 */
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
+ &threshold, sizeof(threshold));
+ if (!rc) {
+ wrqu->rts.value = threshold;
+ wrqu->rts.disabled = threshold >= 2347;
+ wrqu->rts.fixed = 1;
+ }
+ return rc;
+}
+
+static int wl3501_get_frag_threshold(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u16 threshold; /* size checked: it is u16 */
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
+ &threshold, sizeof(threshold));
+ if (!rc) {
+ wrqu->frag.value = threshold;
+ wrqu->frag.disabled = threshold >= 2346;
+ wrqu->frag.fixed = 1;
+ }
+ return rc;
+}
+
+static int wl3501_get_txpow(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u16 txpow;
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this,
+ WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
+ &txpow, sizeof(txpow));
+ if (!rc) {
+ wrqu->txpower.value = txpow;
+ wrqu->txpower.disabled = 0;
+ /*
+ * From the MIB values I think this can be configurable,
+ * as it lists several tx power levels -acme
+ */
+ wrqu->txpower.fixed = 0;
+ wrqu->txpower.flags = IW_TXPOW_MWATT;
+ }
+ return rc;
+}
+
+static int wl3501_get_retry(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u8 retry; /* size checked: it is u8 */
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this,
+ WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
+ &retry, sizeof(retry));
+ if (rc)
+ goto out;
+ if (wrqu->retry.flags & IW_RETRY_MAX) {
+ wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
+ goto set_value;
+ }
+ rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
+ &retry, sizeof(retry));
+ if (rc)
+ goto out;
+ wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
+set_value:
+ wrqu->retry.value = retry;
+ wrqu->retry.disabled = 0;
+out:
+ return rc;
+}
+
+static int wl3501_get_encode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u8 implemented, restricted, keys[100], len_keys, tocopy;
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this,
+ WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
+ &implemented, sizeof(implemented));
+ if (rc)
+ goto out;
+ if (!implemented) {
+ wrqu->encoding.flags = IW_ENCODE_DISABLED;
+ goto out;
+ }
+ rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
+ &restricted, sizeof(restricted));
+ if (rc)
+ goto out;
+ wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
+ IW_ENCODE_OPEN;
+ rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
+ &len_keys, sizeof(len_keys));
+ if (rc)
+ goto out;
+ rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
+ keys, len_keys);
+ if (rc)
+ goto out;
+ tocopy = min_t(u8, len_keys, wrqu->encoding.length);
+ tocopy = min_t(u8, tocopy, 100);
+ wrqu->encoding.length = tocopy;
+ memset(extra, 0, tocopy);
+ memcpy(extra, keys, tocopy);
+out:
+ return rc;
+}
+
+static int wl3501_get_power(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u8 pwr_state;
+ struct wl3501_card *this = dev->priv;
+ int rc = wl3501_get_mib_value(this,
+ WL3501_MIB_ATTR_CURRENT_PWR_STATE,
+ &pwr_state, sizeof(pwr_state));
+ if (rc)
+ goto out;
+ wrqu->power.disabled = !pwr_state;
+ wrqu->power.flags = IW_POWER_ON;
+out:
+ return rc;
+}
+
+static const iw_handler wl3501_handler[] = {
+ [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
+ [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
+ [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
+ [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
+ [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
+ [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
+ [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
+ [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
+ [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
+ [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
+ [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
+ [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
+ [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
+ [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
+ [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
+ [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
+ [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
+ [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
+ [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
+ [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
+ [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
+ [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
+ [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
+ [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
+ [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
+ [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
+};
+
+static const struct iw_handler_def wl3501_handler_def = {
+ .num_standard = sizeof(wl3501_handler) / sizeof(iw_handler),
+ .standard = (iw_handler *)wl3501_handler,
+ .spy_offset = offsetof(struct wl3501_card, spy_data),
+};
+
+/**
+ * wl3501_attach - creates an "instance" of the driver
+ *
+ * Creates an "instance" of the driver, allocating local data structures for
+ * one device. The device is registered with Card Services.
+ *
+ * The dev_link structure is initialized, but we don't actually configure the
+ * card at this point -- we wait until we receive a card insertion event.
+ */
+static dev_link_t *wl3501_attach(void)
+{
+ client_reg_t client_reg;
+ dev_link_t *link;
+ struct net_device *dev;
+ int ret;
+
+ /* Initialize the dev_link_t structure */
+ link = kmalloc(sizeof(*link), GFP_KERNEL);
+ if (!link)
+ goto out;
+ memset(link, 0, sizeof(struct dev_link_t));
+
+ /* The io structure describes IO port mapping */
+ link->io.NumPorts1 = 16;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.IOAddrLines = 5;
+
+ /* Interrupt setup */
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->irq.Handler = wl3501_interrupt;
+
+ /* General socket configuration */
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+ link->conf.ConfigIndex = 1;
+ link->conf.Present = PRESENT_OPTION;
+
+ dev = alloc_etherdev(sizeof(struct wl3501_card));
+ if (!dev)
+ goto out_link;
+ dev->open = wl3501_open;
+ dev->stop = wl3501_close;
+ dev->hard_start_xmit = wl3501_hard_start_xmit;
+ dev->tx_timeout = wl3501_tx_timeout;
+ dev->watchdog_timeo = 5 * HZ;
+ dev->get_stats = wl3501_get_stats;
+ dev->get_wireless_stats = wl3501_get_wireless_stats;
+ dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def;
+ SET_ETHTOOL_OPS(dev, &ops);
+ netif_stop_queue(dev);
+ link->priv = link->irq.Instance = dev;
+
+ /* Register with Card Services */
+ link->next = wl3501_dev_list;
+ wl3501_dev_list = link;
+ client_reg.dev_info = &wl3501_dev_info;
+ client_reg.EventMask = CS_EVENT_CARD_INSERTION |
+ CS_EVENT_RESET_PHYSICAL |
+ CS_EVENT_CARD_RESET |
+ CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_PM_SUSPEND |
+ CS_EVENT_PM_RESUME;
+ client_reg.event_handler = wl3501_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if (ret) {
+ cs_error(link->handle, RegisterClient, ret);
+ wl3501_detach(link);
+ link = NULL;
+ }
+out:
+ return link;
+out_link:
+ kfree(link);
+ link = NULL;
+ goto out;
+}
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+/**
+ * wl3501_config - configure the PCMCIA socket and make eth device available
+ * @link - FILL_IN
+ *
+ * wl3501_config() is scheduled to run after a CARD_INSERTION event is
+ * received, to configure the PCMCIA socket, and to make the ethernet device
+ * available to the system.
+ */
+static void wl3501_config(dev_link_t *link)
+{
+ tuple_t tuple;
+ cisparse_t parse;
+ client_handle_t handle = link->handle;
+ struct net_device *dev = link->priv;
+ int i = 0, j, last_fn, last_ret;
+ unsigned char bf[64];
+ struct wl3501_card *this;
+
+ /* This reads the card's CONFIG tuple to find its config registers. */
+ tuple.Attributes = 0;
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ tuple.TupleData = bf;
+ tuple.TupleDataMax = sizeof(bf);
+ tuple.TupleOffset = 0;
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ /* Try allocating IO ports. This tries a few fixed addresses. If you
+ * want, you can also read the card's config table to pick addresses --
+ * see the serial driver for an example. */
+
+ for (j = 0x280; j < 0x400; j += 0x20) {
+ /* The '^0x300' is so that we probe 0x300-0x3ff first, then
+ * 0x200-0x2ff, and so on, because this seems safer */
+ link->io.BasePort1 = j;
+ link->io.BasePort2 = link->io.BasePort1 + 0x10;
+ i = pcmcia_request_io(link->handle, &link->io);
+ if (i == CS_SUCCESS)
+ break;
+ }
+ if (i != CS_SUCCESS) {
+ cs_error(link->handle, RequestIO, i);
+ goto failed;
+ }
+
+ /* Now allocate an interrupt line. Note that this does not actually
+ * assign a handler to the interrupt. */
+
+ 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. */
+
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
+
+ dev->irq = link->irq.AssignedIRQ;
+ dev->base_addr = link->io.BasePort1;
+ SET_NETDEV_DEV(dev, &handle_to_dev(handle));
+ if (register_netdev(dev)) {
+ printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
+ goto failed;
+ }
+
+ SET_MODULE_OWNER(dev);
+
+ this = dev->priv;
+ /*
+ * At this point, the dev_node_t structure(s) should be initialized and
+ * arranged in a linked list at link->dev.
+ */
+ link->dev = &this->node;
+ link->state &= ~DEV_CONFIG_PENDING;
+
+ this->base_addr = dev->base_addr;
+
+ if (!wl3501_get_flash_mac_addr(this)) {
+ printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
+ dev->name);
+ goto failed;
+ }
+ strcpy(this->node.dev_name, dev->name);
+
+ /* print probe information */
+ printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:",
+ dev->name, this->base_addr, (int)dev->irq);
+ for (i = 0; i < 6; i++) {
+ dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
+ printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
+ }
+ printk("\n");
+ /*
+ * Initialize card parameters - added by jss
+ */
+ this->net_type = IW_MODE_INFRA;
+ this->bss_cnt = 0;
+ this->join_sta_bss = 0;
+ this->adhoc_times = 0;
+ iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
+ "ANY", 3);
+ this->card_name[0] = '\0';
+ this->firmware_date[0] = '\0';
+ this->rssi = 255;
+ this->chan = iw_default_channel(this->reg_domain);
+ strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
+ spin_lock_init(&this->lock);
+ init_waitqueue_head(&this->wait);
+ netif_start_queue(dev);
+ goto out;
+cs_failed:
+ cs_error(link->handle, last_fn, last_ret);
+failed:
+ wl3501_release(link);
+out:
+ return;
+}
+
+/**
+ * wl3501_release - unregister the net, release PCMCIA configuration
+ * @arg - link
+ *
+ * After a card is removed, wl3501_release() will unregister the net device,
+ * and release the PCMCIA configuration. If the device is still open, this
+ * will be postponed until it is closed.
+ */
+static void wl3501_release(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+
+ /* Unlink the device chain */
+ if (link->dev) {
+ unregister_netdev(dev);
+ link->dev = NULL;
+ }
+
+ /* Don't bother checking to see if these succeed or not */
+ pcmcia_release_configuration(link->handle);
+ pcmcia_release_io(link->handle, &link->io);
+ pcmcia_release_irq(link->handle, &link->irq);
+ link->state &= ~DEV_CONFIG;
+}
+
+/**
+ * wl3501_event - The card status event handler
+ * @event - event
+ * @pri - priority
+ * @args - arguments for this event
+ *
+ * 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 net drivers from trying to talk to the card any more.
+ *
+ * When a CARD_REMOVAL event is received, we immediately set a flag to block
+ * future accesses to this device. All the functions that actually access the
+ * device should check this flag to make sure the card is still present.
+ */
+static int wl3501_event(event_t event, int pri, event_callback_args_t *args)
+{
+ dev_link_t *link = args->client_data;
+ struct net_device *dev = link->priv;
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG) {
+ while (link->open > 0)
+ wl3501_close(dev);
+ netif_device_detach(dev);
+ wl3501_release(link);
+ }
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ wl3501_config(link);
+ break;
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ wl3501_pwr_mgmt(dev->priv, WL3501_SUSPEND);
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if (link->state & DEV_CONFIG) {
+ if (link->open)
+ netif_device_detach(dev);
+ pcmcia_release_configuration(link->handle);
+ }
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ wl3501_pwr_mgmt(dev->priv, WL3501_RESUME);
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (link->state & DEV_CONFIG) {
+ pcmcia_request_configuration(link->handle, &link->conf);
+ if (link->open) {
+ wl3501_reset(dev);
+ netif_device_attach(dev);
+ }
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct pcmcia_driver wl3501_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "wl3501_cs",
+ },
+ .attach = wl3501_attach,
+ .detach = wl3501_detach,
+};
+
+static int __init wl3501_init_module(void)
+{
+ return pcmcia_register_driver(&wl3501_driver);
+}
+
+static void __exit wl3501_exit_module(void)
+{
+ dprintk(0, ": unloading");
+ pcmcia_unregister_driver(&wl3501_driver);
+ BUG_ON(wl3501_dev_list != NULL);
+}
+
+module_init(wl3501_init_module);
+module_exit(wl3501_exit_module);
+
+MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
+ "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
+ "Gustavo Niemeyer <niemeyer@conectiva.com>");
+MODULE_DESCRIPTION("Planet wl3501 wireless driver");
+MODULE_LICENSE("GPL");