diff options
Diffstat (limited to 'kernel/drivers/net/wireless/zd1201.c')
| -rw-r--r-- | kernel/drivers/net/wireless/zd1201.c | 1913 |
1 files changed, 1913 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/zd1201.c b/kernel/drivers/net/wireless/zd1201.c new file mode 100644 index 000000000..6f5c793a7 --- /dev/null +++ b/kernel/drivers/net/wireless/zd1201.c @@ -0,0 +1,1913 @@ +/* + * 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 <net/cfg80211.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, 0x8004)}, /* Gigabyte GN-WLBZ101 */ + {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) { + err = -ENOMEM; + 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, buf, sizeof(ret), ZD1201_FW_TIMEOUT); + if (err < 0) + goto exit; + + memcpy(&ret, buf, sizeof(ret)); + + 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; + + 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, &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_frequency_to_channel(freq->m); + + 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_rx_mode = 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) { + err = -ENOMEM; + 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 = usb_get_intfdata(interface); + struct hlist_node *node2; + struct zd1201_frag *frag; + + if (!zd) + return; + usb_set_intfdata(interface, NULL); + + hlist_for_each_entry_safe(frag, 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, + .disable_hub_initiated_lpm = 1, +}; + +module_usb_driver(zd1201_usb); |