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linux/drivers/net/wireless/zd1201.c
Joe Perches a4b770972b drivers/net: Remove unnecessary returns from void function()s 
This patch removes from drivers/net/ all the unnecessary
return; statements that precede the last closing brace of
void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

It also does not remove null void functions with return.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

with some cleanups by hand.

Compile tested x86 allmodconfig only.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-14 00:19:28 -07:00

1920 lines
46 KiB
C
Raw Blame History

/*
* Driver for ZyDAS zd1201 based wireless USB devices.
*
* Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* Parts of this driver have been derived from a wlan-ng version
* modified by ZyDAS. They also made documentation available, thanks!
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
*/
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <net/iw_handler.h>
#include <linux/string.h>
#include <linux/if_arp.h>
#include <linux/firmware.h>
#include "zd1201.h"
static struct usb_device_id zd1201_table[] = {
{USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
{USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
{USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
{USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
{USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
{}
};
static int ap; /* Are we an AP or a normal station? */
#define ZD1201_VERSION "0.15"
MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
MODULE_VERSION(ZD1201_VERSION);
MODULE_LICENSE("GPL");
module_param(ap, int, 0);
MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
MODULE_DEVICE_TABLE(usb, zd1201_table);
static int zd1201_fw_upload(struct usb_device *dev, int apfw)
{
const struct firmware *fw_entry;
const char *data;
unsigned long len;
int err;
unsigned char ret;
char *buf;
char *fwfile;
if (apfw)
fwfile = "zd1201-ap.fw";
else
fwfile = "zd1201.fw";
err = request_firmware(&fw_entry, fwfile, &dev->dev);
if (err) {
dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
return err;
}
data = fw_entry->data;
len = fw_entry->size;
buf = kmalloc(1024, GFP_ATOMIC);
if (!buf)
goto exit;
while (len > 0) {
int translen = (len > 1024) ? 1024 : len;
memcpy(buf, data, translen);
err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
USB_DIR_OUT | 0x40, 0, 0, buf, translen,
ZD1201_FW_TIMEOUT);
if (err < 0)
goto exit;
len -= translen;
data += translen;
}
err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
if (err < 0)
goto exit;
err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
if (err < 0)
goto exit;
if (ret & 0x80) {
err = -EIO;
goto exit;
}
err = 0;
exit:
kfree(buf);
release_firmware(fw_entry);
return err;
}
MODULE_FIRMWARE("zd1201-ap.fw");
MODULE_FIRMWARE("zd1201.fw");
static void zd1201_usbfree(struct urb *urb)
{
struct zd1201 *zd = urb->context;
switch(urb->status) {
case -EILSEQ:
case -ENODEV:
case -ETIME:
case -ENOENT:
case -EPIPE:
case -EOVERFLOW:
case -ESHUTDOWN:
dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
zd->dev->name, urb->status);
}
kfree(urb->transfer_buffer);
usb_free_urb(urb);
}
/* cmdreq message:
u32 type
u16 cmd
u16 parm0
u16 parm1
u16 parm2
u8 pad[4]
total: 4 + 2 + 2 + 2 + 2 + 4 = 16
*/
static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
int parm1, int parm2)
{
unsigned char *command;
int ret;
struct urb *urb;
command = kmalloc(16, GFP_ATOMIC);
if (!command)
return -ENOMEM;
*((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
*((__le16*)&command[4]) = cpu_to_le16(cmd);
*((__le16*)&command[6]) = cpu_to_le16(parm0);
*((__le16*)&command[8]) = cpu_to_le16(parm1);
*((__le16*)&command[10])= cpu_to_le16(parm2);
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
kfree(command);
return -ENOMEM;
}
usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
command, 16, zd1201_usbfree, zd);
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret) {
kfree(command);
usb_free_urb(urb);
}
return ret;
}
/* Callback after sending out a packet */
static void zd1201_usbtx(struct urb *urb)
{
struct zd1201 *zd = urb->context;
netif_wake_queue(zd->dev);
}
/* Incoming data */
static void zd1201_usbrx(struct urb *urb)
{
struct zd1201 *zd = urb->context;
int free = 0;
unsigned char *data = urb->transfer_buffer;
struct sk_buff *skb;
unsigned char type;
if (!zd)
return;
switch(urb->status) {
case -EILSEQ:
case -ENODEV:
case -ETIME:
case -ENOENT:
case -EPIPE:
case -EOVERFLOW:
case -ESHUTDOWN:
dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
zd->dev->name, urb->status);
free = 1;
goto exit;
}
if (urb->status != 0 || urb->actual_length == 0)
goto resubmit;
type = data[0];
if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
memcpy(zd->rxdata, data, urb->actual_length);
zd->rxlen = urb->actual_length;
zd->rxdatas = 1;
wake_up(&zd->rxdataq);
}
/* Info frame */
if (type == ZD1201_PACKET_INQUIRE) {
int i = 0;
unsigned short infotype, framelen, copylen;
framelen = le16_to_cpu(*(__le16*)&data[4]);
infotype = le16_to_cpu(*(__le16*)&data[6]);
if (infotype == ZD1201_INF_LINKSTATUS) {
short linkstatus;
linkstatus = le16_to_cpu(*(__le16*)&data[8]);
switch(linkstatus) {
case 1:
netif_carrier_on(zd->dev);
break;
case 2:
netif_carrier_off(zd->dev);
break;
case 3:
netif_carrier_off(zd->dev);
break;
case 4:
netif_carrier_on(zd->dev);
break;
default:
netif_carrier_off(zd->dev);
}
goto resubmit;
}
if (infotype == ZD1201_INF_ASSOCSTATUS) {
short status = le16_to_cpu(*(__le16*)(data+8));
int event;
union iwreq_data wrqu;
switch (status) {
case ZD1201_ASSOCSTATUS_STAASSOC:
case ZD1201_ASSOCSTATUS_REASSOC:
event = IWEVREGISTERED;
break;
case ZD1201_ASSOCSTATUS_DISASSOC:
case ZD1201_ASSOCSTATUS_ASSOCFAIL:
case ZD1201_ASSOCSTATUS_AUTHFAIL:
default:
event = IWEVEXPIRED;
}
memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(zd->dev, event, &wrqu, NULL);
goto resubmit;
}
if (infotype == ZD1201_INF_AUTHREQ) {
union iwreq_data wrqu;
memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
/* There isn't a event that trully fits this request.
We assume that userspace will be smart enough to
see a new station being expired and sends back a
authstation ioctl to authorize it. */
wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
goto resubmit;
}
/* Other infotypes are handled outside this handler */
zd->rxlen = 0;
while (i < urb->actual_length) {
copylen = le16_to_cpu(*(__le16*)&data[i+2]);
/* Sanity check, sometimes we get junk */
if (copylen+zd->rxlen > sizeof(zd->rxdata))
break;
memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
zd->rxlen += copylen;
i += 64;
}
if (i >= urb->actual_length) {
zd->rxdatas = 1;
wake_up(&zd->rxdataq);
}
goto resubmit;
}
/* Actual data */
if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
int datalen = urb->actual_length-1;
unsigned short len, fc, seq;
struct hlist_node *node;
len = ntohs(*(__be16 *)&data[datalen-2]);
if (len>datalen)
len=datalen;
fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
if (zd->monitor) {
if (datalen < 24)
goto resubmit;
if (!(skb = dev_alloc_skb(datalen+24)))
goto resubmit;
memcpy(skb_put(skb, 2), &data[datalen-16], 2);
memcpy(skb_put(skb, 2), &data[datalen-2], 2);
memcpy(skb_put(skb, 6), &data[datalen-14], 6);
memcpy(skb_put(skb, 6), &data[datalen-22], 6);
memcpy(skb_put(skb, 6), &data[datalen-8], 6);
memcpy(skb_put(skb, 2), &data[datalen-24], 2);
memcpy(skb_put(skb, len), data, len);
skb->protocol = eth_type_trans(skb, zd->dev);
zd->dev->stats.rx_packets++;
zd->dev->stats.rx_bytes += skb->len;
netif_rx(skb);
goto resubmit;
}
if ((seq & IEEE80211_SCTL_FRAG) ||
(fc & IEEE80211_FCTL_MOREFRAGS)) {
struct zd1201_frag *frag = NULL;
char *ptr;
if (datalen<14)
goto resubmit;
if ((seq & IEEE80211_SCTL_FRAG) == 0) {
frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
if (!frag)
goto resubmit;
skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
if (!skb) {
kfree(frag);
goto resubmit;
}
frag->skb = skb;
frag->seq = seq & IEEE80211_SCTL_SEQ;
skb_reserve(skb, 2);
memcpy(skb_put(skb, 12), &data[datalen-14], 12);
memcpy(skb_put(skb, 2), &data[6], 2);
memcpy(skb_put(skb, len), data+8, len);
hlist_add_head(&frag->fnode, &zd->fraglist);
goto resubmit;
}
hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
break;
if (!frag)
goto resubmit;
skb = frag->skb;
ptr = skb_put(skb, len);
if (ptr)
memcpy(ptr, data+8, len);
if (fc & IEEE80211_FCTL_MOREFRAGS)
goto resubmit;
hlist_del_init(&frag->fnode);
kfree(frag);
} else {
if (datalen<14)
goto resubmit;
skb = dev_alloc_skb(len + 14 + 2);
if (!skb)
goto resubmit;
skb_reserve(skb, 2);
memcpy(skb_put(skb, 12), &data[datalen-14], 12);
memcpy(skb_put(skb, 2), &data[6], 2);
memcpy(skb_put(skb, len), data+8, len);
}
skb->protocol = eth_type_trans(skb, zd->dev);
zd->dev->stats.rx_packets++;
zd->dev->stats.rx_bytes += skb->len;
netif_rx(skb);
}
resubmit:
memset(data, 0, ZD1201_RXSIZE);
urb->status = 0;
urb->dev = zd->usb;
if(usb_submit_urb(urb, GFP_ATOMIC))
free = 1;
exit:
if (free) {
zd->rxlen = 0;
zd->rxdatas = 1;
wake_up(&zd->rxdataq);
kfree(urb->transfer_buffer);
}
}
static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
unsigned int riddatalen)
{
int err;
int i = 0;
int code;
int rid_fid;
int length;
unsigned char *pdata;
zd->rxdatas = 0;
err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
if (err)
return err;
wait_event_interruptible(zd->rxdataq, zd->rxdatas);
if (!zd->rxlen)
return -EIO;
code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
if (length > zd->rxlen)
length = zd->rxlen-6;
/* If access bit is not on, then error */
if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
return -EINVAL;
/* Not enough buffer for allocating data */
if (riddatalen != (length - 4)) {
dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
riddatalen, zd->rxlen, length, rid, rid_fid);
return -ENODATA;
}
zd->rxdatas = 0;
/* Issue SetRxRid commnd */
err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
if (err)
return err;
/* Receive RID record from resource packets */
wait_event_interruptible(zd->rxdataq, zd->rxdatas);
if (!zd->rxlen)
return -EIO;
if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
zd->rxdata[zd->rxlen-1]);
return -EINVAL;
}
/* Set the data pointer and received data length */
pdata = zd->rxdata;
length = zd->rxlen;
do {
int actual_length;
actual_length = (length > 64) ? 64 : length;
if (pdata[0] != 0x3) {
dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
pdata[0]);
return -EINVAL;
}
if (actual_length != 64) {
/* Trim the last packet type byte */
actual_length--;
}
/* Skip the 4 bytes header (RID length and RID) */
if (i == 0) {
pdata += 8;
actual_length -= 8;
} else {
pdata += 4;
actual_length -= 4;
}
memcpy(riddata, pdata, actual_length);
riddata += actual_length;
pdata += actual_length;
length -= 64;
i++;
} while (length > 0);
return 0;
}
/*
* resreq:
* byte type
* byte sequence
* u16 reserved
* byte data[12]
* total: 16
*/
static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
{
int err;
unsigned char *request;
int reqlen;
char seq=0;
struct urb *urb;
gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
len += 4; /* first 4 are for header */
zd->rxdatas = 0;
zd->rxlen = 0;
for (seq=0; len > 0; seq++) {
request = kmalloc(16, gfp_mask);
if (!request)
return -ENOMEM;
urb = usb_alloc_urb(0, gfp_mask);
if (!urb) {
kfree(request);
return -ENOMEM;
}
memset(request, 0, 16);
reqlen = len>12 ? 12 : len;
request[0] = ZD1201_USB_RESREQ;
request[1] = seq;
request[2] = 0;
request[3] = 0;
if (request[1] == 0) {
/* add header */
*(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
*(__le16*)&request[6] = cpu_to_le16(rid);
memcpy(request+8, buf, reqlen-4);
buf += reqlen-4;
} else {
memcpy(request+4, buf, reqlen);
buf += reqlen;
}
len -= reqlen;
usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
zd->endp_out2), request, 16, zd1201_usbfree, zd);
err = usb_submit_urb(urb, gfp_mask);
if (err)
goto err;
}
request = kmalloc(16, gfp_mask);
if (!request)
return -ENOMEM;
urb = usb_alloc_urb(0, gfp_mask);
if (!urb) {
kfree(request);
return -ENOMEM;
}
*((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
*((__le16*)&request[4]) =
cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
*((__le16*)&request[6]) = cpu_to_le16(rid);
*((__le16*)&request[8]) = cpu_to_le16(0);
*((__le16*)&request[10]) = cpu_to_le16(0);
usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
request, 16, zd1201_usbfree, zd);
err = usb_submit_urb(urb, gfp_mask);
if (err)
goto err;
if (wait) {
wait_event_interruptible(zd->rxdataq, zd->rxdatas);
if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
}
}
return 0;
err:
kfree(request);
usb_free_urb(urb);
return err;
}
static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
{
int err;
__le16 zdval;
err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
if (err)
return err;
*val = le16_to_cpu(zdval);
return 0;
}
static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
{
__le16 zdval = cpu_to_le16(val);
return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
}
static int zd1201_drvr_start(struct zd1201 *zd)
{
int err, i;
short max;
__le16 zdmax;
unsigned char *buffer;
buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
usb_fill_bulk_urb(zd->rx_urb, zd->usb,
usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
zd1201_usbrx, zd);
err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
if (err)
goto err_buffer;
err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
if (err)
goto err_urb;
err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
sizeof(__le16));
if (err)
goto err_urb;
max = le16_to_cpu(zdmax);
for (i=0; i<max; i++) {
err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
if (err)
goto err_urb;
}
return 0;
err_urb:
usb_kill_urb(zd->rx_urb);
return err;
err_buffer:
kfree(buffer);
return err;
}
/* Magic alert: The firmware doesn't seem to like the MAC state being
* toggled in promisc (aka monitor) mode.
* (It works a number of times, but will halt eventually)
* So we turn it of before disabling and on after enabling if needed.
*/
static int zd1201_enable(struct zd1201 *zd)
{
int err;
if (zd->mac_enabled)
return 0;
err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
if (!err)
zd->mac_enabled = 1;
if (zd->monitor)
err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
return err;
}
static int zd1201_disable(struct zd1201 *zd)
{
int err;
if (!zd->mac_enabled)
return 0;
if (zd->monitor) {
err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
if (err)
return err;
}
err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
if (!err)
zd->mac_enabled = 0;
return err;
}
static int zd1201_mac_reset(struct zd1201 *zd)
{
if (!zd->mac_enabled)
return 0;
zd1201_disable(zd);
return zd1201_enable(zd);
}
static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
{
int err, val;
char buf[IW_ESSID_MAX_SIZE+2];
err = zd1201_disable(zd);
if (err)
return err;
val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
if (err)
return err;
*(__le16 *)buf = cpu_to_le16(essidlen);
memcpy(buf+2, essid, essidlen);
if (!zd->ap) { /* Normal station */
err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
IW_ESSID_MAX_SIZE+2, 1);
if (err)
return err;
} else { /* AP */
err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
IW_ESSID_MAX_SIZE+2, 1);
if (err)
return err;
}
err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
zd->dev->dev_addr, zd->dev->addr_len, 1);
if (err)
return err;
err = zd1201_enable(zd);
if (err)
return err;
msleep(100);
return 0;
}
static int zd1201_net_open(struct net_device *dev)
{
struct zd1201 *zd = netdev_priv(dev);
/* Start MAC with wildcard if no essid set */
if (!zd->mac_enabled)
zd1201_join(zd, zd->essid, zd->essidlen);
netif_start_queue(dev);
return 0;
}
static int zd1201_net_stop(struct net_device *dev)
{
netif_stop_queue(dev);
return 0;
}
/*
RFC 1042 encapsulates Ethernet frames in 802.11 frames
by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
(0x00, 0x00, 0x00). Zd requires an additional padding, copy
of ethernet addresses, length of the standard RFC 1042 packet
and a command byte (which is nul for tx).
tx frame (from Wlan NG):
RFC 1042:
llc 0xAA 0xAA 0x03 (802.2 LLC)
snap 0x00 0x00 0x00 (Ethernet encapsulated)
type 2 bytes, Ethernet type field
payload (minus eth header)
Zydas specific:
padding 1B if (skb->len+8+1)%64==0
Eth MAC addr 12 bytes, Ethernet MAC addresses
length 2 bytes, RFC 1042 packet length
(llc+snap+type+payload)
zd 1 null byte, zd1201 packet type
*/
static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct zd1201 *zd = netdev_priv(dev);
unsigned char *txbuf = zd->txdata;
int txbuflen, pad = 0, err;
struct urb *urb = zd->tx_urb;
if (!zd->mac_enabled || zd->monitor) {
dev->stats.tx_dropped++;
kfree_skb(skb);
return NETDEV_TX_OK;
}
netif_stop_queue(dev);
txbuflen = skb->len + 8 + 1;
if (txbuflen%64 == 0) {
pad = 1;
txbuflen++;
}
txbuf[0] = 0xAA;
txbuf[1] = 0xAA;
txbuf[2] = 0x03;
txbuf[3] = 0x00; /* rfc1042 */
txbuf[4] = 0x00;
txbuf[5] = 0x00;
skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
if (pad)
txbuf[skb->len-12+6]=0;
skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
*(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
txbuf[txbuflen-1] = 0;
usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
txbuf, txbuflen, zd1201_usbtx, zd);
err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
if (err) {
dev->stats.tx_errors++;
netif_start_queue(dev);
} else {
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
}
kfree_skb(skb);
return NETDEV_TX_OK;
}
static void zd1201_tx_timeout(struct net_device *dev)
{
struct zd1201 *zd = netdev_priv(dev);
if (!zd)
return;
dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
dev->name);
usb_unlink_urb(zd->tx_urb);
dev->stats.tx_errors++;
/* Restart the timeout to quiet the watchdog: */
dev->trans_start = jiffies; /* prevent tx timeout */
}
static int zd1201_set_mac_address(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
struct zd1201 *zd = netdev_priv(dev);
int err;
if (!zd)
return -ENODEV;
err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
addr->sa_data, dev->addr_len, 1);
if (err)
return err;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
return zd1201_mac_reset(zd);
}
static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
{
struct zd1201 *zd = netdev_priv(dev);
return &zd->iwstats;
}
static void zd1201_set_multicast(struct net_device *dev)
{
struct zd1201 *zd = netdev_priv(dev);
struct netdev_hw_addr *ha;
unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
int i;
if (netdev_mc_count(dev) > ZD1201_MAXMULTI)
return;
i = 0;
netdev_for_each_mc_addr(ha, dev)
memcpy(reqbuf + i++ * ETH_ALEN, ha->addr, ETH_ALEN);
zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
netdev_mc_count(dev) * ETH_ALEN, 0);
}
static int zd1201_config_commit(struct net_device *dev,
struct iw_request_info *info, struct iw_point *data, char *essid)
{
struct zd1201 *zd = netdev_priv(dev);
return zd1201_mac_reset(zd);
}
static int zd1201_get_name(struct net_device *dev,
struct iw_request_info *info, char *name, char *extra)
{
strcpy(name, "IEEE 802.11b");
return 0;
}
static int zd1201_set_freq(struct net_device *dev,
struct iw_request_info *info, struct iw_freq *freq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short channel = 0;
int err;
if (freq->e == 0)
channel = freq->m;
else {
channel = ieee80211_freq_to_dsss_chan(freq->m);
if (channel < 0)
channel = 0;
}
err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
if (err)
return err;
zd1201_mac_reset(zd);
return 0;
}
static int zd1201_get_freq(struct net_device *dev,
struct iw_request_info *info, struct iw_freq *freq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short channel;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
if (err)
return err;
freq->e = 0;
freq->m = channel;
return 0;
}
static int zd1201_set_mode(struct net_device *dev,
struct iw_request_info *info, __u32 *mode, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short porttype, monitor = 0;
unsigned char buffer[IW_ESSID_MAX_SIZE+2];
int err;
if (zd->ap) {
if (*mode != IW_MODE_MASTER)
return -EINVAL;
return 0;
}
err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
if (err)
return err;
zd->dev->type = ARPHRD_ETHER;
switch(*mode) {
case IW_MODE_MONITOR:
monitor = 1;
zd->dev->type = ARPHRD_IEEE80211;
/* Make sure we are no longer associated with by
setting an 'impossible' essid.
(otherwise we mess up firmware)
*/
zd1201_join(zd, "\0-*#\0", 5);
/* Put port in pIBSS */
case 8: /* No pseudo-IBSS in wireless extensions (yet) */
porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
break;
case IW_MODE_ADHOC:
porttype = ZD1201_PORTTYPE_IBSS;
break;
case IW_MODE_INFRA:
porttype = ZD1201_PORTTYPE_BSS;
break;
default:
return -EINVAL;
}
err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
if (err)
return err;
if (zd->monitor && !monitor) {
zd1201_disable(zd);
*(__le16 *)buffer = cpu_to_le16(zd->essidlen);
memcpy(buffer+2, zd->essid, zd->essidlen);
err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
buffer, IW_ESSID_MAX_SIZE+2, 1);
if (err)
return err;
}
zd->monitor = monitor;
/* If monitor mode is set we don't actually turn it on here since it
* is done during mac reset anyway (see zd1201_mac_enable).
*/
zd1201_mac_reset(zd);
return 0;
}
static int zd1201_get_mode(struct net_device *dev,
struct iw_request_info *info, __u32 *mode, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short porttype;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
if (err)
return err;
switch(porttype) {
case ZD1201_PORTTYPE_IBSS:
*mode = IW_MODE_ADHOC;
break;
case ZD1201_PORTTYPE_BSS:
*mode = IW_MODE_INFRA;
break;
case ZD1201_PORTTYPE_WDS:
*mode = IW_MODE_REPEAT;
break;
case ZD1201_PORTTYPE_PSEUDOIBSS:
*mode = 8;/* No Pseudo-IBSS... */
break;
case ZD1201_PORTTYPE_AP:
*mode = IW_MODE_MASTER;
break;
default:
dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
porttype);
*mode = IW_MODE_AUTO;
}
if (zd->monitor)
*mode = IW_MODE_MONITOR;
return 0;
}
static int zd1201_get_range(struct net_device *dev,
struct iw_request_info *info, struct iw_point *wrq, char *extra)
{
struct iw_range *range = (struct iw_range *)extra;
wrq->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = WIRELESS_EXT;
range->max_qual.qual = 128;
range->max_qual.level = 128;
range->max_qual.noise = 128;
range->max_qual.updated = 7;
range->encoding_size[0] = 5;
range->encoding_size[1] = 13;
range->num_encoding_sizes = 2;
range->max_encoding_tokens = ZD1201_NUMKEYS;
range->num_bitrates = 4;
range->bitrate[0] = 1000000;
range->bitrate[1] = 2000000;
range->bitrate[2] = 5500000;
range->bitrate[3] = 11000000;
range->min_rts = 0;
range->min_frag = ZD1201_FRAGMIN;
range->max_rts = ZD1201_RTSMAX;
range->min_frag = ZD1201_FRAGMAX;
return 0;
}
/* Little bit of magic here: we only get the quality if we poll
* for it, and we never get an actual request to trigger such
* a poll. Therefore we 'assume' that the user will soon ask for
* the stats after asking the bssid.
*/
static int zd1201_get_wap(struct net_device *dev,
struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
unsigned char buffer[6];
if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
/* Unfortunately the quality and noise reported is useless.
they seem to be accumulators that increase until you
read them, unless we poll on a fixed interval we can't
use them
*/
/*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
/*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
zd->iwstats.qual.updated = 2;
}
return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
}
static int zd1201_set_scan(struct net_device *dev,
struct iw_request_info *info, struct iw_point *srq, char *extra)
{
/* We do everything in get_scan */
return 0;
}
static int zd1201_get_scan(struct net_device *dev,
struct iw_request_info *info, struct iw_point *srq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
int err, i, j, enabled_save;
struct iw_event iwe;
char *cev = extra;
char *end_buf = extra + IW_SCAN_MAX_DATA;
/* No scanning in AP mode */
if (zd->ap)
return -EOPNOTSUPP;
/* Scan doesn't seem to work if disabled */
enabled_save = zd->mac_enabled;
zd1201_enable(zd);
zd->rxdatas = 0;
err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
ZD1201_INQ_SCANRESULTS, 0, 0);
if (err)
return err;
wait_event_interruptible(zd->rxdataq, zd->rxdatas);
if (!zd->rxlen)
return -EIO;
if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
return -EIO;
for(i=8; i<zd->rxlen; i+=62) {
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
cev = iwe_stream_add_event(info, cev, end_buf,
&iwe, IW_EV_ADDR_LEN);
iwe.cmd = SIOCGIWESSID;
iwe.u.data.length = zd->rxdata[i+16];
iwe.u.data.flags = 1;
cev = iwe_stream_add_point(info, cev, end_buf,
&iwe, zd->rxdata+i+18);
iwe.cmd = SIOCGIWMODE;
if (zd->rxdata[i+14]&0x01)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
cev = iwe_stream_add_event(info, cev, end_buf,
&iwe, IW_EV_UINT_LEN);
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = zd->rxdata[i+0];
iwe.u.freq.e = 0;
cev = iwe_stream_add_event(info, cev, end_buf,
&iwe, IW_EV_FREQ_LEN);
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = 0;
iwe.u.bitrate.disabled = 0;
for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
cev = iwe_stream_add_event(info, cev, end_buf,
&iwe, IW_EV_PARAM_LEN);
}
iwe.cmd = SIOCGIWENCODE;
iwe.u.data.length = 0;
if (zd->rxdata[i+14]&0x10)
iwe.u.data.flags = IW_ENCODE_ENABLED;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
iwe.cmd = IWEVQUAL;
iwe.u.qual.qual = zd->rxdata[i+4];
iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
iwe.u.qual.updated = 7;
cev = iwe_stream_add_event(info, cev, end_buf,
&iwe, IW_EV_QUAL_LEN);
}
if (!enabled_save)
zd1201_disable(zd);
srq->length = cev - extra;
srq->flags = 0;
return 0;
}
static int zd1201_set_essid(struct net_device *dev,
struct iw_request_info *info, struct iw_point *data, char *essid)
{
struct zd1201 *zd = netdev_priv(dev);
if (data->length > IW_ESSID_MAX_SIZE)
return -EINVAL;
if (data->length < 1)
data->length = 1;
zd->essidlen = data->length;
memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
memcpy(zd->essid, essid, data->length);
return zd1201_join(zd, zd->essid, zd->essidlen);
}
static int zd1201_get_essid(struct net_device *dev,
struct iw_request_info *info, struct iw_point *data, char *essid)
{
struct zd1201 *zd = netdev_priv(dev);
memcpy(essid, zd->essid, zd->essidlen);
data->flags = 1;
data->length = zd->essidlen;
return 0;
}
static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *data, char *nick)
{
strcpy(nick, "zd1201");
data->flags = 1;
data->length = strlen(nick);
return 0;
}
static int zd1201_set_rate(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short rate;
int err;
switch (rrq->value) {
case 1000000:
rate = ZD1201_RATEB1;
break;
case 2000000:
rate = ZD1201_RATEB2;
break;
case 5500000:
rate = ZD1201_RATEB5;
break;
case 11000000:
default:
rate = ZD1201_RATEB11;
break;
}
if (!rrq->fixed) { /* Also enable all lower bitrates */
rate |= rate-1;
}
err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
if (err)
return err;
return zd1201_mac_reset(zd);
}
static int zd1201_get_rate(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short rate;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
if (err)
return err;
switch(rate) {
case 1:
rrq->value = 1000000;
break;
case 2:
rrq->value = 2000000;
break;
case 5:
rrq->value = 5500000;
break;
case 11:
rrq->value = 11000000;
break;
default:
rrq->value = 0;
}
rrq->fixed = 0;
rrq->disabled = 0;
return 0;
}
static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
int err;
short val = rts->value;
if (rts->disabled || !rts->fixed)
val = ZD1201_RTSMAX;
if (val > ZD1201_RTSMAX)
return -EINVAL;
if (val < 0)
return -EINVAL;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
if (err)
return err;
return zd1201_mac_reset(zd);
}
static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short rtst;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
if (err)
return err;
rts->value = rtst;
rts->disabled = (rts->value == ZD1201_RTSMAX);
rts->fixed = 1;
return 0;
}
static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
int err;
short val = frag->value;
if (frag->disabled || !frag->fixed)
val = ZD1201_FRAGMAX;
if (val > ZD1201_FRAGMAX)
return -EINVAL;
if (val < ZD1201_FRAGMIN)
return -EINVAL;
if (val & 1)
return -EINVAL;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
if (err)
return err;
return zd1201_mac_reset(zd);
}
static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short fragt;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
if (err)
return err;
frag->value = fragt;
frag->disabled = (frag->value == ZD1201_FRAGMAX);
frag->fixed = 1;
return 0;
}
static int zd1201_set_retry(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
return 0;
}
static int zd1201_get_retry(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
return 0;
}
static int zd1201_set_encode(struct net_device *dev,
struct iw_request_info *info, struct iw_point *erq, char *key)
{
struct zd1201 *zd = netdev_priv(dev);
short i;
int err, rid;
if (erq->length > ZD1201_MAXKEYLEN)
return -EINVAL;
i = (erq->flags & IW_ENCODE_INDEX)-1;
if (i == -1) {
err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
if (err)
return err;
} else {
err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
if (err)
return err;
}
if (i < 0 || i >= ZD1201_NUMKEYS)
return -EINVAL;
rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
err = zd1201_setconfig(zd, rid, key, erq->length, 1);
if (err)
return err;
zd->encode_keylen[i] = erq->length;
memcpy(zd->encode_keys[i], key, erq->length);
i=0;
if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
i |= 0x01;
zd->encode_enabled = 1;
} else
zd->encode_enabled = 0;
if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
i |= 0x02;
zd->encode_restricted = 1;
} else
zd->encode_restricted = 0;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
if (err)
return err;
if (zd->encode_enabled)
i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
else
i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
if (err)
return err;
return zd1201_mac_reset(zd);
}
static int zd1201_get_encode(struct net_device *dev,
struct iw_request_info *info, struct iw_point *erq, char *key)
{
struct zd1201 *zd = netdev_priv(dev);
short i;
int err;
if (zd->encode_enabled)
erq->flags = IW_ENCODE_ENABLED;
else
erq->flags = IW_ENCODE_DISABLED;
if (zd->encode_restricted)
erq->flags |= IW_ENCODE_RESTRICTED;
else
erq->flags |= IW_ENCODE_OPEN;
i = (erq->flags & IW_ENCODE_INDEX) -1;
if (i == -1) {
err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
if (err)
return err;
}
if (i<0 || i>= ZD1201_NUMKEYS)
return -EINVAL;
erq->flags |= i+1;
erq->length = zd->encode_keylen[i];
memcpy(key, zd->encode_keys[i], erq->length);
return 0;
}
static int zd1201_set_power(struct net_device *dev,
struct iw_request_info *info, struct iw_param *vwrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short enabled, duration, level;
int err;
enabled = vwrq->disabled ? 0 : 1;
if (enabled) {
if (vwrq->flags & IW_POWER_PERIOD) {
duration = vwrq->value;
err = zd1201_setconfig16(zd,
ZD1201_RID_CNFMAXSLEEPDURATION, duration);
if (err)
return err;
goto out;
}
if (vwrq->flags & IW_POWER_TIMEOUT) {
err = zd1201_getconfig16(zd,
ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
if (err)
return err;
level = vwrq->value * 4 / duration;
if (level > 4)
level = 4;
if (level < 0)
level = 0;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
level);
if (err)
return err;
goto out;
}
return -EINVAL;
}
out:
return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
}
static int zd1201_get_power(struct net_device *dev,
struct iw_request_info *info, struct iw_param *vwrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short enabled, level, duration;
int err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
if (err)
return err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
if (err)
return err;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
if (err)
return err;
vwrq->disabled = enabled ? 0 : 1;
if (vwrq->flags & IW_POWER_TYPE) {
if (vwrq->flags & IW_POWER_PERIOD) {
vwrq->value = duration;
vwrq->flags = IW_POWER_PERIOD;
} else {
vwrq->value = duration * level / 4;
vwrq->flags = IW_POWER_TIMEOUT;
}
}
if (vwrq->flags & IW_POWER_MODE) {
if (enabled && level)
vwrq->flags = IW_POWER_UNICAST_R;
else
vwrq->flags = IW_POWER_ALL_R;
}
return 0;
}
static const iw_handler zd1201_iw_handler[] =
{
(iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
(iw_handler) zd1201_get_name, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
(iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
(iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
(iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL, /* SIOCSIWRANGE */
(iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
(iw_handler) NULL, /* SIOCSIWPRIV */
(iw_handler) NULL, /* SIOCGIWPRIV */
(iw_handler) NULL, /* SIOCSIWSTATS */
(iw_handler) NULL, /* SIOCGIWSTATS */
(iw_handler) NULL, /* SIOCSIWSPY */
(iw_handler) NULL, /* SIOCGIWSPY */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
(iw_handler) zd1201_get_wap, /* SIOCGIWAP */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* SIOCGIWAPLIST */
(iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
(iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
(iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
(iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
(iw_handler) NULL, /* SIOCSIWNICKN */
(iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
(iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
(iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
(iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
(iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
(iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
(iw_handler) NULL, /* SIOCSIWTXPOW */
(iw_handler) NULL, /* SIOCGIWTXPOW */
(iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
(iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
(iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
(iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
(iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
(iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
};
static int zd1201_set_hostauth(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
if (!zd->ap)
return -EOPNOTSUPP;
return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
}
static int zd1201_get_hostauth(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short hostauth;
int err;
if (!zd->ap)
return -EOPNOTSUPP;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
if (err)
return err;
rrq->value = hostauth;
rrq->fixed = 1;
return 0;
}
static int zd1201_auth_sta(struct net_device *dev,
struct iw_request_info *info, struct sockaddr *sta, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
unsigned char buffer[10];
if (!zd->ap)
return -EOPNOTSUPP;
memcpy(buffer, sta->sa_data, ETH_ALEN);
*(short*)(buffer+6) = 0; /* 0==success, 1==failure */
*(short*)(buffer+8) = 0;
return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
}
static int zd1201_set_maxassoc(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
int err;
if (!zd->ap)
return -EOPNOTSUPP;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
if (err)
return err;
return 0;
}
static int zd1201_get_maxassoc(struct net_device *dev,
struct iw_request_info *info, struct iw_param *rrq, char *extra)
{
struct zd1201 *zd = netdev_priv(dev);
short maxassoc;
int err;
if (!zd->ap)
return -EOPNOTSUPP;
err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
if (err)
return err;
rrq->value = maxassoc;
rrq->fixed = 1;
return 0;
}
static const iw_handler zd1201_private_handler[] = {
(iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
(iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
(iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
(iw_handler) NULL, /* nothing to get */
(iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
(iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
};
static const struct iw_priv_args zd1201_private_args[] = {
{ ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
IW_PRIV_TYPE_NONE, "sethostauth" },
{ ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
{ ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
IW_PRIV_TYPE_NONE, "authstation" },
{ ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
IW_PRIV_TYPE_NONE, "setmaxassoc" },
{ ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
};
static const struct iw_handler_def zd1201_iw_handlers = {
.num_standard = ARRAY_SIZE(zd1201_iw_handler),
.num_private = ARRAY_SIZE(zd1201_private_handler),
.num_private_args = ARRAY_SIZE(zd1201_private_args),
.standard = (iw_handler *)zd1201_iw_handler,
.private = (iw_handler *)zd1201_private_handler,
.private_args = (struct iw_priv_args *) zd1201_private_args,
.get_wireless_stats = zd1201_get_wireless_stats,
};
static const struct net_device_ops zd1201_netdev_ops = {
.ndo_open = zd1201_net_open,
.ndo_stop = zd1201_net_stop,
.ndo_start_xmit = zd1201_hard_start_xmit,
.ndo_tx_timeout = zd1201_tx_timeout,
.ndo_set_multicast_list = zd1201_set_multicast,
.ndo_set_mac_address = zd1201_set_mac_address,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
};
static int zd1201_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct zd1201 *zd;
struct net_device *dev;
struct usb_device *usb;
int err;
short porttype;
char buf[IW_ESSID_MAX_SIZE+2];
usb = interface_to_usbdev(interface);
dev = alloc_etherdev(sizeof(*zd));
if (!dev)
return -ENOMEM;
zd = netdev_priv(dev);
zd->dev = dev;
zd->ap = ap;
zd->usb = usb;
zd->removed = 0;
init_waitqueue_head(&zd->rxdataq);
INIT_HLIST_HEAD(&zd->fraglist);
err = zd1201_fw_upload(usb, zd->ap);
if (err) {
dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
goto err_zd;
}
zd->endp_in = 1;
zd->endp_out = 1;
zd->endp_out2 = 2;
zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!zd->rx_urb || !zd->tx_urb)
goto err_zd;
mdelay(100);
err = zd1201_drvr_start(zd);
if (err)
goto err_zd;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
if (err)
goto err_start;
err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
if (err)
goto err_start;
dev->netdev_ops = &zd1201_netdev_ops;
dev->wireless_handlers = &zd1201_iw_handlers;
dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
strcpy(dev->name, "wlan%d");
err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
dev->dev_addr, dev->addr_len);
if (err)
goto err_start;
/* Set wildcard essid to match zd->essid */
*(__le16 *)buf = cpu_to_le16(0);
err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
IW_ESSID_MAX_SIZE+2, 1);
if (err)
goto err_start;
if (zd->ap)
porttype = ZD1201_PORTTYPE_AP;
else
porttype = ZD1201_PORTTYPE_BSS;
err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
if (err)
goto err_start;
SET_NETDEV_DEV(dev, &usb->dev);
err = register_netdev(dev);
if (err)
goto err_start;
dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
dev->name);
usb_set_intfdata(interface, zd);
zd1201_enable(zd); /* zd1201 likes to startup enabled, */
zd1201_disable(zd); /* interfering with all the wifis in range */
return 0;
err_start:
/* Leave the device in reset state */
zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
err_zd:
usb_free_urb(zd->tx_urb);
usb_free_urb(zd->rx_urb);
free_netdev(dev);
return err;
}
static void zd1201_disconnect(struct usb_interface *interface)
{
struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
struct hlist_node *node, *node2;
struct zd1201_frag *frag;
if (!zd)
return;
usb_set_intfdata(interface, NULL);
hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
hlist_del_init(&frag->fnode);
kfree_skb(frag->skb);
kfree(frag);
}
if (zd->tx_urb) {
usb_kill_urb(zd->tx_urb);
usb_free_urb(zd->tx_urb);
}
if (zd->rx_urb) {
usb_kill_urb(zd->rx_urb);
usb_free_urb(zd->rx_urb);
}
if (zd->dev) {
unregister_netdev(zd->dev);
free_netdev(zd->dev);
}
}
#ifdef CONFIG_PM
static int zd1201_suspend(struct usb_interface *interface,
pm_message_t message)
{
struct zd1201 *zd = usb_get_intfdata(interface);
netif_device_detach(zd->dev);
zd->was_enabled = zd->mac_enabled;
if (zd->was_enabled)
return zd1201_disable(zd);
else
return 0;
}
static int zd1201_resume(struct usb_interface *interface)
{
struct zd1201 *zd = usb_get_intfdata(interface);
if (!zd || !zd->dev)
return -ENODEV;
netif_device_attach(zd->dev);
if (zd->was_enabled)
return zd1201_enable(zd);
else
return 0;
}
#else
#define zd1201_suspend NULL
#define zd1201_resume NULL
#endif
static struct usb_driver zd1201_usb = {
.name = "zd1201",
.probe = zd1201_probe,
.disconnect = zd1201_disconnect,
.id_table = zd1201_table,
.suspend = zd1201_suspend,
.resume = zd1201_resume,
};
static int __init zd1201_init(void)
{
return usb_register(&zd1201_usb);
}
static void __exit zd1201_cleanup(void)
{
usb_deregister(&zd1201_usb);
}
module_init(zd1201_init);
module_exit(zd1201_cleanup);
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