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linux/drivers/net/wireless/orinoco.c
David Kilroy 667d41008e orinoco: Multicast to the specified addresses 
When multicasting the driver sets the number of group addresses using
the count from the previous set multicast command. In general this means
you have to set the multicast addresses twice to get the behaviour you
want.

If we were multicasting, and reduce the number of addresses we are
multicasting to, then the driver would write uninitialised data from the
stack into the group addresses to multicast to.

Only write the multicast addresses we have specifically set.

Signed-off-by: David Kilroy <kilroyd@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-02 17:39:49 -04:00

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/* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
*
* A driver for Hermes or Prism 2 chipset based PCMCIA wireless
* adaptors, with Lucent/Agere, Intersil or Symbol firmware.
*
* Current maintainers (as of 29 September 2003) are:
* Pavel Roskin <proski AT gnu.org>
* and David Gibson <hermes AT gibson.dropbear.id.au>
*
* (C) Copyright David Gibson, IBM Corporation 2001-2003.
* Copyright (C) 2000 David Gibson, Linuxcare Australia.
* With some help from :
* Copyright (C) 2001 Jean Tourrilhes, HP Labs
* Copyright (C) 2001 Benjamin Herrenschmidt
*
* Based on dummy_cs.c 1.27 2000/06/12 21:27:25
*
* Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
* AT fasta.fh-dortmund.de>
* http://www.stud.fh-dortmund.de/~andy/wvlan/
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The initial developer of the original code is David A. Hinds
* <dahinds AT users.sourceforge.net>. Portions created by David
* A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
* Reserved.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License version 2 (the "GPL"), in
* which case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file
* under either the MPL or the GPL. */
/*
* TODO
* o Handle de-encapsulation within network layer, provide 802.11
* headers (patch from Thomas 'Dent' Mirlacher)
* o Fix possible races in SPY handling.
* o Disconnect wireless extensions from fundamental configuration.
* o (maybe) Software WEP support (patch from Stano Meduna).
* o (maybe) Use multiple Tx buffers - driver handling queue
* rather than firmware.
*/
/* Locking and synchronization:
*
* The basic principle is that everything is serialized through a
* single spinlock, priv->lock. The lock is used in user, bh and irq
* context, so when taken outside hardirq context it should always be
* taken with interrupts disabled. The lock protects both the
* hardware and the struct orinoco_private.
*
* Another flag, priv->hw_unavailable indicates that the hardware is
* unavailable for an extended period of time (e.g. suspended, or in
* the middle of a hard reset). This flag is protected by the
* spinlock. All code which touches the hardware should check the
* flag after taking the lock, and if it is set, give up on whatever
* they are doing and drop the lock again. The orinoco_lock()
* function handles this (it unlocks and returns -EBUSY if
* hw_unavailable is non-zero).
*/
#define DRIVER_NAME "orinoco"
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <net/ieee80211.h>
#include "hermes_rid.h"
#include "orinoco.h"
/********************************************************************/
/* Module information */
/********************************************************************/
MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
MODULE_LICENSE("Dual MPL/GPL");
/* Level of debugging. Used in the macros in orinoco.h */
#ifdef ORINOCO_DEBUG
int orinoco_debug = ORINOCO_DEBUG;
module_param(orinoco_debug, int, 0644);
MODULE_PARM_DESC(orinoco_debug, "Debug level");
EXPORT_SYMBOL(orinoco_debug);
#endif
static int suppress_linkstatus; /* = 0 */
module_param(suppress_linkstatus, bool, 0644);
MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
static int ignore_disconnect; /* = 0 */
module_param(ignore_disconnect, int, 0644);
MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
static int force_monitor; /* = 0 */
module_param(force_monitor, int, 0644);
MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
/********************************************************************/
/* Compile time configuration and compatibility stuff */
/********************************************************************/
/* We do this this way to avoid ifdefs in the actual code */
#ifdef WIRELESS_SPY
#define SPY_NUMBER(priv) (priv->spy_data.spy_number)
#else
#define SPY_NUMBER(priv) 0
#endif /* WIRELESS_SPY */
/********************************************************************/
/* Internal constants */
/********************************************************************/
/* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
#define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
#define ORINOCO_MIN_MTU 256
#define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
#define SYMBOL_MAX_VER_LEN (14)
#define USER_BAP 0
#define IRQ_BAP 1
#define MAX_IRQLOOPS_PER_IRQ 10
#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
* how many events the
* device could
* legitimately generate */
#define SMALL_KEY_SIZE 5
#define LARGE_KEY_SIZE 13
#define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
#define DUMMY_FID 0xFFFF
/*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
HERMES_MAX_MULTICAST : 0)*/
#define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
#define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
| HERMES_EV_TX | HERMES_EV_TXEXC \
| HERMES_EV_WTERR | HERMES_EV_INFO \
| HERMES_EV_INFDROP )
#define MAX_RID_LEN 1024
static const struct iw_handler_def orinoco_handler_def;
static const struct ethtool_ops orinoco_ethtool_ops;
/********************************************************************/
/* Data tables */
/********************************************************************/
/* The frequency of each channel in MHz */
static const long channel_frequency[] = {
2412, 2417, 2422, 2427, 2432, 2437, 2442,
2447, 2452, 2457, 2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
/* This tables gives the actual meanings of the bitrate IDs returned
* by the firmware. */
static struct {
int bitrate; /* in 100s of kilobits */
int automatic;
u16 agere_txratectrl;
u16 intersil_txratectrl;
} bitrate_table[] = {
{110, 1, 3, 15}, /* Entry 0 is the default */
{10, 0, 1, 1},
{10, 1, 1, 1},
{20, 0, 2, 2},
{20, 1, 6, 3},
{55, 0, 4, 4},
{55, 1, 7, 7},
{110, 0, 5, 8},
};
#define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
/********************************************************************/
/* Data types */
/********************************************************************/
/* Beginning of the Tx descriptor, used in TxExc handling */
struct hermes_txexc_data {
struct hermes_tx_descriptor desc;
__le16 frame_ctl;
__le16 duration_id;
u8 addr1[ETH_ALEN];
} __attribute__ ((packed));
/* Rx frame header except compatibility 802.3 header */
struct hermes_rx_descriptor {
/* Control */
__le16 status;
__le32 time;
u8 silence;
u8 signal;
u8 rate;
u8 rxflow;
__le32 reserved;
/* 802.11 header */
__le16 frame_ctl;
__le16 duration_id;
u8 addr1[ETH_ALEN];
u8 addr2[ETH_ALEN];
u8 addr3[ETH_ALEN];
__le16 seq_ctl;
u8 addr4[ETH_ALEN];
/* Data length */
__le16 data_len;
} __attribute__ ((packed));
/********************************************************************/
/* Function prototypes */
/********************************************************************/
static int __orinoco_program_rids(struct net_device *dev);
static void __orinoco_set_multicast_list(struct net_device *dev);
/********************************************************************/
/* Internal helper functions */
/********************************************************************/
static inline void set_port_type(struct orinoco_private *priv)
{
switch (priv->iw_mode) {
case IW_MODE_INFRA:
priv->port_type = 1;
priv->createibss = 0;
break;
case IW_MODE_ADHOC:
if (priv->prefer_port3) {
priv->port_type = 3;
priv->createibss = 0;
} else {
priv->port_type = priv->ibss_port;
priv->createibss = 1;
}
break;
case IW_MODE_MONITOR:
priv->port_type = 3;
priv->createibss = 0;
break;
default:
printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
priv->ndev->name);
}
}
#define ORINOCO_MAX_BSS_COUNT 64
static int orinoco_bss_data_allocate(struct orinoco_private *priv)
{
if (priv->bss_data)
return 0;
priv->bss_data =
kzalloc(ORINOCO_MAX_BSS_COUNT * sizeof(bss_element), GFP_KERNEL);
if (!priv->bss_data) {
printk(KERN_WARNING "Out of memory allocating beacons");
return -ENOMEM;
}
return 0;
}
static void orinoco_bss_data_free(struct orinoco_private *priv)
{
kfree(priv->bss_data);
priv->bss_data = NULL;
}
static void orinoco_bss_data_init(struct orinoco_private *priv)
{
int i;
INIT_LIST_HEAD(&priv->bss_free_list);
INIT_LIST_HEAD(&priv->bss_list);
for (i = 0; i < ORINOCO_MAX_BSS_COUNT; i++)
list_add_tail(&priv->bss_data[i].list, &priv->bss_free_list);
}
/********************************************************************/
/* Device methods */
/********************************************************************/
static int orinoco_open(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
int err;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = __orinoco_up(dev);
if (! err)
priv->open = 1;
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_stop(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = 0;
/* We mustn't use orinoco_lock() here, because we need to be
able to close the interface even if hw_unavailable is set
(e.g. as we're released after a PC Card removal) */
spin_lock_irq(&priv->lock);
priv->open = 0;
err = __orinoco_down(dev);
spin_unlock_irq(&priv->lock);
return err;
}
static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
return &priv->stats;
}
static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
struct iw_statistics *wstats = &priv->wstats;
int err;
unsigned long flags;
if (! netif_device_present(dev)) {
printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
dev->name);
return NULL; /* FIXME: Can we do better than this? */
}
/* If busy, return the old stats. Returning NULL may cause
* the interface to disappear from /proc/net/wireless */
if (orinoco_lock(priv, &flags) != 0)
return wstats;
/* We can't really wait for the tallies inquiry command to
* complete, so we just use the previous results and trigger
* a new tallies inquiry command for next time - Jean II */
/* FIXME: Really we should wait for the inquiry to come back -
* as it is the stats we give don't make a whole lot of sense.
* Unfortunately, it's not clear how to do that within the
* wireless extensions framework: I think we're in user
* context, but a lock seems to be held by the time we get in
* here so we're not safe to sleep here. */
hermes_inquire(hw, HERMES_INQ_TALLIES);
if (priv->iw_mode == IW_MODE_ADHOC) {
memset(&wstats->qual, 0, sizeof(wstats->qual));
/* If a spy address is defined, we report stats of the
* first spy address - Jean II */
if (SPY_NUMBER(priv)) {
wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
wstats->qual.level = priv->spy_data.spy_stat[0].level;
wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
}
} else {
struct {
__le16 qual, signal, noise, unused;
} __attribute__ ((packed)) cq;
err = HERMES_READ_RECORD(hw, USER_BAP,
HERMES_RID_COMMSQUALITY, &cq);
if (!err) {
wstats->qual.qual = (int)le16_to_cpu(cq.qual);
wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
wstats->qual.updated = 7;
}
}
orinoco_unlock(priv, &flags);
return wstats;
}
static void orinoco_set_multicast_list(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0) {
printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
"called when hw_unavailable\n", dev->name);
return;
}
__orinoco_set_multicast_list(dev);
orinoco_unlock(priv, &flags);
}
static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
{
struct orinoco_private *priv = netdev_priv(dev);
if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
return -EINVAL;
if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
(priv->nicbuf_size - ETH_HLEN) )
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
/********************************************************************/
/* Tx path */
/********************************************************************/
static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
hermes_t *hw = &priv->hw;
int err = 0;
u16 txfid = priv->txfid;
struct ethhdr *eh;
int data_off;
struct hermes_tx_descriptor desc;
unsigned long flags;
if (! netif_running(dev)) {
printk(KERN_ERR "%s: Tx on stopped device!\n",
dev->name);
return NETDEV_TX_BUSY;
}
if (netif_queue_stopped(dev)) {
printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
dev->name);
return NETDEV_TX_BUSY;
}
if (orinoco_lock(priv, &flags) != 0) {
printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
dev->name);
return NETDEV_TX_BUSY;
}
if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
/* Oops, the firmware hasn't established a connection,
silently drop the packet (this seems to be the
safest approach). */
goto drop;
}
/* Check packet length */
if (skb->len < ETH_HLEN)
goto drop;
eh = (struct ethhdr *)skb->data;
memset(&desc, 0, sizeof(desc));
desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
if (err) {
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d writing Tx descriptor "
"to BAP\n", dev->name, err);
goto busy;
}
/* Clear the 802.11 header and data length fields - some
* firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
* if this isn't done. */
hermes_clear_words(hw, HERMES_DATA0,
HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
/* Encapsulate Ethernet-II frames */
if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
struct header_struct {
struct ethhdr eth; /* 802.3 header */
u8 encap[6]; /* 802.2 header */
} __attribute__ ((packed)) hdr;
/* Strip destination and source from the data */
skb_pull(skb, 2 * ETH_ALEN);
data_off = HERMES_802_2_OFFSET + sizeof(encaps_hdr);
/* And move them to a separate header */
memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));
err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
txfid, HERMES_802_3_OFFSET);
if (err) {
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d writing packet "
"header to BAP\n", dev->name, err);
goto busy;
}
} else { /* IEEE 802.3 frame */
data_off = HERMES_802_3_OFFSET;
}
err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
txfid, data_off);
if (err) {
printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
dev->name, err);
goto busy;
}
/* Finally, we actually initiate the send */
netif_stop_queue(dev);
err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
txfid, NULL);
if (err) {
netif_start_queue(dev);
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d transmitting packet\n",
dev->name, err);
goto busy;
}
dev->trans_start = jiffies;
stats->tx_bytes += data_off + skb->len;
goto ok;
drop:
stats->tx_errors++;
stats->tx_dropped++;
ok:
orinoco_unlock(priv, &flags);
dev_kfree_skb(skb);
return NETDEV_TX_OK;
busy:
if (err == -EIO)
schedule_work(&priv->reset_work);
orinoco_unlock(priv, &flags);
return NETDEV_TX_BUSY;
}
static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
u16 fid = hermes_read_regn(hw, ALLOCFID);
if (fid != priv->txfid) {
if (fid != DUMMY_FID)
printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
dev->name, fid);
return;
}
hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
}
static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
stats->tx_packets++;
netif_wake_queue(dev);
hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
}
static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
u16 fid = hermes_read_regn(hw, TXCOMPLFID);
u16 status;
struct hermes_txexc_data hdr;
int err = 0;
if (fid == DUMMY_FID)
return; /* Nothing's really happened */
/* Read part of the frame header - we need status and addr1 */
err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
sizeof(struct hermes_txexc_data),
fid, 0);
hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
stats->tx_errors++;
if (err) {
printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
"(FID=%04X error %d)\n",
dev->name, fid, err);
return;
}
DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
err, fid);
/* We produce a TXDROP event only for retry or lifetime
* exceeded, because that's the only status that really mean
* that this particular node went away.
* Other errors means that *we* screwed up. - Jean II */
status = le16_to_cpu(hdr.desc.status);
if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
union iwreq_data wrqu;
/* Copy 802.11 dest address.
* We use the 802.11 header because the frame may
* not be 802.3 or may be mangled...
* In Ad-Hoc mode, it will be the node address.
* In managed mode, it will be most likely the AP addr
* User space will figure out how to convert it to
* whatever it needs (IP address or else).
* - Jean II */
memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
}
netif_wake_queue(dev);
}
static void orinoco_tx_timeout(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
struct hermes *hw = &priv->hw;
printk(KERN_WARNING "%s: Tx timeout! "
"ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
dev->name, hermes_read_regn(hw, ALLOCFID),
hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
stats->tx_errors++;
schedule_work(&priv->reset_work);
}
/********************************************************************/
/* Rx path (data frames) */
/********************************************************************/
/* Does the frame have a SNAP header indicating it should be
* de-encapsulated to Ethernet-II? */
static inline int is_ethersnap(void *_hdr)
{
u8 *hdr = _hdr;
/* We de-encapsulate all packets which, a) have SNAP headers
* (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
* and where b) the OUI of the SNAP header is 00:00:00 or
* 00:00:f8 - we need both because different APs appear to use
* different OUIs for some reason */
return (memcmp(hdr, &encaps_hdr, 5) == 0)
&& ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
}
static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
int level, int noise)
{
struct iw_quality wstats;
wstats.level = level - 0x95;
wstats.noise = noise - 0x95;
wstats.qual = (level > noise) ? (level - noise) : 0;
wstats.updated = 7;
/* Update spy records */
wireless_spy_update(dev, mac, &wstats);
}
static void orinoco_stat_gather(struct net_device *dev,
struct sk_buff *skb,
struct hermes_rx_descriptor *desc)
{
struct orinoco_private *priv = netdev_priv(dev);
/* Using spy support with lots of Rx packets, like in an
* infrastructure (AP), will really slow down everything, because
* the MAC address must be compared to each entry of the spy list.
* If the user really asks for it (set some address in the
* spy list), we do it, but he will pay the price.
* Note that to get here, you need both WIRELESS_SPY
* compiled in AND some addresses in the list !!!
*/
/* Note : gcc will optimise the whole section away if
* WIRELESS_SPY is not defined... - Jean II */
if (SPY_NUMBER(priv)) {
orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN,
desc->signal, desc->silence);
}
}
/*
* orinoco_rx_monitor - handle received monitor frames.
*
* Arguments:
* dev network device
* rxfid received FID
* desc rx descriptor of the frame
*
* Call context: interrupt
*/
static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
struct hermes_rx_descriptor *desc)
{
u32 hdrlen = 30; /* return full header by default */
u32 datalen = 0;
u16 fc;
int err;
int len;
struct sk_buff *skb;
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
hermes_t *hw = &priv->hw;
len = le16_to_cpu(desc->data_len);
/* Determine the size of the header and the data */
fc = le16_to_cpu(desc->frame_ctl);
switch (fc & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_DATA:
if ((fc & IEEE80211_FCTL_TODS)
&& (fc & IEEE80211_FCTL_FROMDS))
hdrlen = 30;
else
hdrlen = 24;
datalen = len;
break;
case IEEE80211_FTYPE_MGMT:
hdrlen = 24;
datalen = len;
break;
case IEEE80211_FTYPE_CTL:
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PSPOLL:
case IEEE80211_STYPE_RTS:
case IEEE80211_STYPE_CFEND:
case IEEE80211_STYPE_CFENDACK:
hdrlen = 16;
break;
case IEEE80211_STYPE_CTS:
case IEEE80211_STYPE_ACK:
hdrlen = 10;
break;
}
break;
default:
/* Unknown frame type */
break;
}
/* sanity check the length */
if (datalen > IEEE80211_DATA_LEN + 12) {
printk(KERN_DEBUG "%s: oversized monitor frame, "
"data length = %d\n", dev->name, datalen);
stats->rx_length_errors++;
goto update_stats;
}
skb = dev_alloc_skb(hdrlen + datalen);
if (!skb) {
printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
dev->name);
goto update_stats;
}
/* Copy the 802.11 header to the skb */
memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
skb_reset_mac_header(skb);
/* If any, copy the data from the card to the skb */
if (datalen > 0) {
err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
ALIGN(datalen, 2), rxfid,
HERMES_802_2_OFFSET);
if (err) {
printk(KERN_ERR "%s: error %d reading monitor frame\n",
dev->name, err);
goto drop;
}
}
skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = __constant_htons(ETH_P_802_2);
dev->last_rx = jiffies;
stats->rx_packets++;
stats->rx_bytes += skb->len;
netif_rx(skb);
return;
drop:
dev_kfree_skb_irq(skb);
update_stats:
stats->rx_errors++;
stats->rx_dropped++;
}
static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
struct iw_statistics *wstats = &priv->wstats;
struct sk_buff *skb = NULL;
u16 rxfid, status, fc;
int length;
struct hermes_rx_descriptor desc;
struct ethhdr *hdr;
int err;
rxfid = hermes_read_regn(hw, RXFID);
err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
rxfid, 0);
if (err) {
printk(KERN_ERR "%s: error %d reading Rx descriptor. "
"Frame dropped.\n", dev->name, err);
goto update_stats;
}
status = le16_to_cpu(desc.status);
if (status & HERMES_RXSTAT_BADCRC) {
DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
dev->name);
stats->rx_crc_errors++;
goto update_stats;
}
/* Handle frames in monitor mode */
if (priv->iw_mode == IW_MODE_MONITOR) {
orinoco_rx_monitor(dev, rxfid, &desc);
return;
}
if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
dev->name);
wstats->discard.code++;
goto update_stats;
}
length = le16_to_cpu(desc.data_len);
fc = le16_to_cpu(desc.frame_ctl);
/* Sanity checks */
if (length < 3) { /* No for even an 802.2 LLC header */
/* At least on Symbol firmware with PCF we get quite a
lot of these legitimately - Poll frames with no
data. */
return;
}
if (length > IEEE80211_DATA_LEN) {
printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
dev->name, length);
stats->rx_length_errors++;
goto update_stats;
}
/* We need space for the packet data itself, plus an ethernet
header, plus 2 bytes so we can align the IP header on a
32bit boundary, plus 1 byte so we can read in odd length
packets from the card, which has an IO granularity of 16
bits */
skb = dev_alloc_skb(length+ETH_HLEN+2+1);
if (!skb) {
printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
dev->name);
goto update_stats;
}
/* We'll prepend the header, so reserve space for it. The worst
case is no decapsulation, when 802.3 header is prepended and
nothing is removed. 2 is for aligning the IP header. */
skb_reserve(skb, ETH_HLEN + 2);
err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
ALIGN(length, 2), rxfid,
HERMES_802_2_OFFSET);
if (err) {
printk(KERN_ERR "%s: error %d reading frame. "
"Frame dropped.\n", dev->name, err);
goto drop;
}
/* Handle decapsulation
* In most cases, the firmware tell us about SNAP frames.
* For some reason, the SNAP frames sent by LinkSys APs
* are not properly recognised by most firmwares.
* So, check ourselves */
if (length >= ENCAPS_OVERHEAD &&
(((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
is_ethersnap(skb->data))) {
/* These indicate a SNAP within 802.2 LLC within
802.11 frame which we'll need to de-encapsulate to
the original EthernetII frame. */
hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
} else {
/* 802.3 frame - prepend 802.3 header as is */
hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
hdr->h_proto = htons(length);
}
memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
if (fc & IEEE80211_FCTL_FROMDS)
memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
else
memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
if (fc & IEEE80211_FCTL_TODS)
skb->pkt_type = PACKET_OTHERHOST;
/* Process the wireless stats if needed */
orinoco_stat_gather(dev, skb, &desc);
/* Pass the packet to the networking stack */
netif_rx(skb);
stats->rx_packets++;
stats->rx_bytes += length;
return;
drop:
dev_kfree_skb_irq(skb);
update_stats:
stats->rx_errors++;
stats->rx_dropped++;
}
/********************************************************************/
/* Rx path (info frames) */
/********************************************************************/
static void print_linkstatus(struct net_device *dev, u16 status)
{
char * s;
if (suppress_linkstatus)
return;
switch (status) {
case HERMES_LINKSTATUS_NOT_CONNECTED:
s = "Not Connected";
break;
case HERMES_LINKSTATUS_CONNECTED:
s = "Connected";
break;
case HERMES_LINKSTATUS_DISCONNECTED:
s = "Disconnected";
break;
case HERMES_LINKSTATUS_AP_CHANGE:
s = "AP Changed";
break;
case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
s = "AP Out of Range";
break;
case HERMES_LINKSTATUS_AP_IN_RANGE:
s = "AP In Range";
break;
case HERMES_LINKSTATUS_ASSOC_FAILED:
s = "Association Failed";
break;
default:
s = "UNKNOWN";
}
printk(KERN_INFO "%s: New link status: %s (%04x)\n",
dev->name, s, status);
}
/* Search scan results for requested BSSID, join it if found */
static void orinoco_join_ap(struct work_struct *work)
{
struct orinoco_private *priv =
container_of(work, struct orinoco_private, join_work);
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
int err;
unsigned long flags;
struct join_req {
u8 bssid[ETH_ALEN];
__le16 channel;
} __attribute__ ((packed)) req;
const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
struct prism2_scan_apinfo *atom = NULL;
int offset = 4;
int found = 0;
u8 *buf;
u16 len;
/* Allocate buffer for scan results */
buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
if (! buf)
return;
if (orinoco_lock(priv, &flags) != 0)
goto fail_lock;
/* Sanity checks in case user changed something in the meantime */
if (! priv->bssid_fixed)
goto out;
if (strlen(priv->desired_essid) == 0)
goto out;
/* Read scan results from the firmware */
err = hermes_read_ltv(hw, USER_BAP,
HERMES_RID_SCANRESULTSTABLE,
MAX_SCAN_LEN, &len, buf);
if (err) {
printk(KERN_ERR "%s: Cannot read scan results\n",
dev->name);
goto out;
}
len = HERMES_RECLEN_TO_BYTES(len);
/* Go through the scan results looking for the channel of the AP
* we were requested to join */
for (; offset + atom_len <= len; offset += atom_len) {
atom = (struct prism2_scan_apinfo *) (buf + offset);
if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
found = 1;
break;
}
}
if (! found) {
DEBUG(1, "%s: Requested AP not found in scan results\n",
dev->name);
goto out;
}
memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
req.channel = atom->channel; /* both are little-endian */
err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
&req);
if (err)
printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
out:
orinoco_unlock(priv, &flags);
fail_lock:
kfree(buf);
}
/* Send new BSSID to userspace */
static void orinoco_send_wevents(struct work_struct *work)
{
struct orinoco_private *priv =
container_of(work, struct orinoco_private, wevent_work);
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
union iwreq_data wrqu;
int err;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return;
err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
if (err != 0)
goto out;
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
out:
orinoco_unlock(priv, &flags);
}
static inline void orinoco_clear_scan_results(struct orinoco_private *priv,
unsigned long scan_age)
{
bss_element *bss;
bss_element *tmp_bss;
/* Blow away current list of scan results */
list_for_each_entry_safe(bss, tmp_bss, &priv->bss_list, list) {
if (!scan_age ||
time_after(jiffies, bss->last_scanned + scan_age)) {
list_move_tail(&bss->list, &priv->bss_free_list);
/* Don't blow away ->list, just BSS data */
memset(bss, 0, sizeof(bss->bss));
bss->last_scanned = 0;
}
}
}
static int orinoco_process_scan_results(struct net_device *dev,
unsigned char *buf,
int len)
{
struct orinoco_private *priv = netdev_priv(dev);
int offset; /* In the scan data */
union hermes_scan_info *atom;
int atom_len;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
atom_len = sizeof(struct agere_scan_apinfo);
offset = 0;
break;
case FIRMWARE_TYPE_SYMBOL:
/* Lack of documentation necessitates this hack.
* Different firmwares have 68 or 76 byte long atoms.
* We try modulo first. If the length divides by both,
* we check what would be the channel in the second
* frame for a 68-byte atom. 76-byte atoms have 0 there.
* Valid channel cannot be 0. */
if (len % 76)
atom_len = 68;
else if (len % 68)
atom_len = 76;
else if (len >= 1292 && buf[68] == 0)
atom_len = 76;
else
atom_len = 68;
offset = 0;
break;
case FIRMWARE_TYPE_INTERSIL:
offset = 4;
if (priv->has_hostscan) {
atom_len = le16_to_cpup((__le16 *)buf);
/* Sanity check for atom_len */
if (atom_len < sizeof(struct prism2_scan_apinfo)) {
printk(KERN_ERR "%s: Invalid atom_len in scan "
"data: %d\n", dev->name, atom_len);
return -EIO;
}
} else
atom_len = offsetof(struct prism2_scan_apinfo, atim);
break;
default:
return -EOPNOTSUPP;
}
/* Check that we got an whole number of atoms */
if ((len - offset) % atom_len) {
printk(KERN_ERR "%s: Unexpected scan data length %d, "
"atom_len %d, offset %d\n", dev->name, len,
atom_len, offset);
return -EIO;
}
orinoco_clear_scan_results(priv, msecs_to_jiffies(15000));
/* Read the entries one by one */
for (; offset + atom_len <= len; offset += atom_len) {
int found = 0;
bss_element *bss = NULL;
/* Get next atom */
atom = (union hermes_scan_info *) (buf + offset);
/* Try to update an existing bss first */
list_for_each_entry(bss, &priv->bss_list, list) {
if (compare_ether_addr(bss->bss.a.bssid, atom->a.bssid))
continue;
if (le16_to_cpu(bss->bss.a.essid_len) !=
le16_to_cpu(atom->a.essid_len))
continue;
if (memcmp(bss->bss.a.essid, atom->a.essid,
le16_to_cpu(atom->a.essid_len)))
continue;
found = 1;
break;
}
/* Grab a bss off the free list */
if (!found && !list_empty(&priv->bss_free_list)) {
bss = list_entry(priv->bss_free_list.next,
bss_element, list);
list_del(priv->bss_free_list.next);
list_add_tail(&bss->list, &priv->bss_list);
}
if (bss) {
/* Always update the BSS to get latest beacon info */
memcpy(&bss->bss, atom, sizeof(bss->bss));
bss->last_scanned = jiffies;
}
}
return 0;
}
static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
u16 infofid;
struct {
__le16 len;
__le16 type;
} __attribute__ ((packed)) info;
int len, type;
int err;
/* This is an answer to an INQUIRE command that we did earlier,
* or an information "event" generated by the card
* The controller return to us a pseudo frame containing
* the information in question - Jean II */
infofid = hermes_read_regn(hw, INFOFID);
/* Read the info frame header - don't try too hard */
err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
infofid, 0);
if (err) {
printk(KERN_ERR "%s: error %d reading info frame. "
"Frame dropped.\n", dev->name, err);
return;
}
len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
type = le16_to_cpu(info.type);
switch (type) {
case HERMES_INQ_TALLIES: {
struct hermes_tallies_frame tallies;
struct iw_statistics *wstats = &priv->wstats;
if (len > sizeof(tallies)) {
printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
dev->name, len);
len = sizeof(tallies);
}
err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
infofid, sizeof(info));
if (err)
break;
/* Increment our various counters */
/* wstats->discard.nwid - no wrong BSSID stuff */
wstats->discard.code +=
le16_to_cpu(tallies.RxWEPUndecryptable);
if (len == sizeof(tallies))
wstats->discard.code +=
le16_to_cpu(tallies.RxDiscards_WEPICVError) +
le16_to_cpu(tallies.RxDiscards_WEPExcluded);
wstats->discard.misc +=
le16_to_cpu(tallies.TxDiscardsWrongSA);
wstats->discard.fragment +=
le16_to_cpu(tallies.RxMsgInBadMsgFragments);
wstats->discard.retries +=
le16_to_cpu(tallies.TxRetryLimitExceeded);
/* wstats->miss.beacon - no match */
}
break;
case HERMES_INQ_LINKSTATUS: {
struct hermes_linkstatus linkstatus;
u16 newstatus;
int connected;
if (priv->iw_mode == IW_MODE_MONITOR)
break;
if (len != sizeof(linkstatus)) {
printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
dev->name, len);
break;
}
err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
infofid, sizeof(info));
if (err)
break;
newstatus = le16_to_cpu(linkstatus.linkstatus);
/* Symbol firmware uses "out of range" to signal that
* the hostscan frame can be requested. */
if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
priv->has_hostscan && priv->scan_inprogress) {
hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
break;
}
connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
|| (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
|| (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
if (connected)
netif_carrier_on(dev);
else if (!ignore_disconnect)
netif_carrier_off(dev);
if (newstatus != priv->last_linkstatus) {
priv->last_linkstatus = newstatus;
print_linkstatus(dev, newstatus);
/* The info frame contains only one word which is the
* status (see hermes.h). The status is pretty boring
* in itself, that's why we export the new BSSID...
* Jean II */
schedule_work(&priv->wevent_work);
}
}
break;
case HERMES_INQ_SCAN:
if (!priv->scan_inprogress && priv->bssid_fixed &&
priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
schedule_work(&priv->join_work);
break;
}
/* fall through */
case HERMES_INQ_HOSTSCAN:
case HERMES_INQ_HOSTSCAN_SYMBOL: {
/* Result of a scanning. Contains information about
* cells in the vicinity - Jean II */
union iwreq_data wrqu;
unsigned char *buf;
/* Scan is no longer in progress */
priv->scan_inprogress = 0;
/* Sanity check */
if (len > 4096) {
printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
dev->name, len);
break;
}
/* Allocate buffer for results */
buf = kmalloc(len, GFP_ATOMIC);
if (buf == NULL)
/* No memory, so can't printk()... */
break;
/* Read scan data */
err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
infofid, sizeof(info));
if (err) {
kfree(buf);
break;
}
#ifdef ORINOCO_DEBUG
{
int i;
printk(KERN_DEBUG "Scan result [%02X", buf[0]);
for(i = 1; i < (len * 2); i++)
printk(":%02X", buf[i]);
printk("]\n");
}
#endif /* ORINOCO_DEBUG */
if (orinoco_process_scan_results(dev, buf, len) == 0) {
/* Send an empty event to user space.
* We don't send the received data on the event because
* it would require us to do complex transcoding, and
* we want to minimise the work done in the irq handler
* Use a request to extract the data - Jean II */
wrqu.data.length = 0;
wrqu.data.flags = 0;
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
}
kfree(buf);
}
break;
case HERMES_INQ_SEC_STAT_AGERE:
/* Security status (Agere specific) */
/* Ignore this frame for now */
if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
break;
/* fall through */
default:
printk(KERN_DEBUG "%s: Unknown information frame received: "
"type 0x%04x, length %d\n", dev->name, type, len);
/* We don't actually do anything about it */
break;
}
}
static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
{
if (net_ratelimit())
printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
}
/********************************************************************/
/* Internal hardware control routines */
/********************************************************************/
int __orinoco_up(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
netif_carrier_off(dev); /* just to make sure */
err = __orinoco_program_rids(dev);
if (err) {
printk(KERN_ERR "%s: Error %d configuring card\n",
dev->name, err);
return err;
}
/* Fire things up again */
hermes_set_irqmask(hw, ORINOCO_INTEN);
err = hermes_enable_port(hw, 0);
if (err) {
printk(KERN_ERR "%s: Error %d enabling MAC port\n",
dev->name, err);
return err;
}
netif_start_queue(dev);
return 0;
}
int __orinoco_down(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
netif_stop_queue(dev);
if (! priv->hw_unavailable) {
if (! priv->broken_disableport) {
err = hermes_disable_port(hw, 0);
if (err) {
/* Some firmwares (e.g. Intersil 1.3.x) seem
* to have problems disabling the port, oh
* well, too bad. */
printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
dev->name, err);
priv->broken_disableport = 1;
}
}
hermes_set_irqmask(hw, 0);
hermes_write_regn(hw, EVACK, 0xffff);
}
/* firmware will have to reassociate */
netif_carrier_off(dev);
priv->last_linkstatus = 0xffff;
return 0;
}
static int orinoco_allocate_fid(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
/* Try workaround for old Symbol firmware bug */
printk(KERN_WARNING "%s: firmware ALLOC bug detected "
"(old Symbol firmware?). Trying to work around... ",
dev->name);
priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
if (err)
printk("failed!\n");
else
printk("ok.\n");
}
return err;
}
int orinoco_reinit_firmware(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
err = hermes_init(hw);
if (!err)
err = orinoco_allocate_fid(dev);
return err;
}
static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
priv->ndev->name, priv->bitratemode);
return -EINVAL;
}
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXRATECONTROL,
bitrate_table[priv->bitratemode].agere_txratectrl);
break;
case FIRMWARE_TYPE_INTERSIL:
case FIRMWARE_TYPE_SYMBOL:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXRATECONTROL,
bitrate_table[priv->bitratemode].intersil_txratectrl);
break;
default:
BUG();
}
return err;
}
/* Set fixed AP address */
static int __orinoco_hw_set_wap(struct orinoco_private *priv)
{
int roaming_flag;
int err = 0;
hermes_t *hw = &priv->hw;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
/* not supported */
break;
case FIRMWARE_TYPE_INTERSIL:
if (priv->bssid_fixed)
roaming_flag = 2;
else
roaming_flag = 1;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFROAMINGMODE,
roaming_flag);
break;
case FIRMWARE_TYPE_SYMBOL:
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
&priv->desired_bssid);
break;
}
return err;
}
/* Change the WEP keys and/or the current keys. Can be called
* either from __orinoco_hw_setup_wep() or directly from
* orinoco_ioctl_setiwencode(). In the later case the association
* with the AP is not broken (if the firmware can handle it),
* which is needed for 802.1x implementations. */
static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFWEPKEYS_AGERE,
&priv->keys);
if (err)
return err;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXKEY_AGERE,
priv->tx_key);
if (err)
return err;
break;
case FIRMWARE_TYPE_INTERSIL:
case FIRMWARE_TYPE_SYMBOL:
{
int keylen;
int i;
/* Force uniform key length to work around firmware bugs */
keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
if (keylen > LARGE_KEY_SIZE) {
printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
priv->ndev->name, priv->tx_key, keylen);
return -E2BIG;
}
/* Write all 4 keys */
for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
err = hermes_write_ltv(hw, USER_BAP,
HERMES_RID_CNFDEFAULTKEY0 + i,
HERMES_BYTES_TO_RECLEN(keylen),
priv->keys[i].data);
if (err)
return err;
}
/* Write the index of the key used in transmission */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPDEFAULTKEYID,
priv->tx_key);
if (err)
return err;
}
break;
}
return 0;
}
static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
int master_wep_flag;
int auth_flag;
if (priv->wep_on)
__orinoco_hw_setup_wepkeys(priv);
if (priv->wep_restrict)
auth_flag = HERMES_AUTH_SHARED_KEY;
else
auth_flag = HERMES_AUTH_OPEN;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
if (priv->wep_on) {
/* Enable the shared-key authentication. */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFAUTHENTICATION_AGERE,
auth_flag);
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPENABLED_AGERE,
priv->wep_on);
if (err)
return err;
break;
case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
if (priv->wep_on) {
if (priv->wep_restrict ||
(priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
HERMES_WEP_EXCL_UNENCRYPTED;
else
master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFAUTHENTICATION,
auth_flag);
if (err)
return err;
} else
master_wep_flag = 0;
if (priv->iw_mode == IW_MODE_MONITOR)
master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
/* Master WEP setting : on/off */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPFLAGS_INTERSIL,
master_wep_flag);
if (err)
return err;
break;
}
return 0;
}
static int __orinoco_program_rids(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
struct hermes_idstring idbuf;
/* Set the MAC address */
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
if (err) {
printk(KERN_ERR "%s: Error %d setting MAC address\n",
dev->name, err);
return err;
}
/* Set up the link mode */
err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
priv->port_type);
if (err) {
printk(KERN_ERR "%s: Error %d setting port type\n",
dev->name, err);
return err;
}
/* Set the channel/frequency */
if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFOWNCHANNEL,
priv->channel);
if (err) {
printk(KERN_ERR "%s: Error %d setting channel %d\n",
dev->name, err, priv->channel);
return err;
}
}
if (priv->has_ibss) {
u16 createibss;
if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
printk(KERN_WARNING "%s: This firmware requires an "
"ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
/* With wvlan_cs, in this case, we would crash.
* hopefully, this driver will behave better...
* Jean II */
createibss = 0;
} else {
createibss = priv->createibss;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFCREATEIBSS,
createibss);
if (err) {
printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
dev->name, err);
return err;
}
}
/* Set the desired BSSID */
err = __orinoco_hw_set_wap(priv);
if (err) {
printk(KERN_ERR "%s: Error %d setting AP address\n",
dev->name, err);
return err;
}
/* Set the desired ESSID */
idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
/* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
dev->name, err);
return err;
}
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
dev->name, err);
return err;
}
/* Set the station name */
idbuf.len = cpu_to_le16(strlen(priv->nick));
memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting nickname\n",
dev->name, err);
return err;
}
/* Set AP density */
if (priv->has_sensitivity) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSYSTEMSCALE,
priv->ap_density);
if (err) {
printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
"Disabling sensitivity control\n",
dev->name, err);
priv->has_sensitivity = 0;
}
}
/* Set RTS threshold */
err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
priv->rts_thresh);
if (err) {
printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
dev->name, err);
return err;
}
/* Set fragmentation threshold or MWO robustness */
if (priv->has_mwo)
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
priv->mwo_robust);
else
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
priv->frag_thresh);
if (err) {
printk(KERN_ERR "%s: Error %d setting fragmentation\n",
dev->name, err);
return err;
}
/* Set bitrate */
err = __orinoco_hw_set_bitrate(priv);
if (err) {
printk(KERN_ERR "%s: Error %d setting bitrate\n",
dev->name, err);
return err;
}
/* Set power management */
if (priv->has_pm) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMENABLED,
priv->pm_on);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMULTICASTRECEIVE,
priv->pm_mcast);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION,
priv->pm_period);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMHOLDOVERDURATION,
priv->pm_timeout);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
}
/* Set preamble - only for Symbol so far... */
if (priv->has_preamble) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPREAMBLE_SYMBOL,
priv->preamble);
if (err) {
printk(KERN_ERR "%s: Error %d setting preamble\n",
dev->name, err);
return err;
}
}
/* Set up encryption */
if (priv->has_wep) {
err = __orinoco_hw_setup_wep(priv);
if (err) {
printk(KERN_ERR "%s: Error %d activating WEP\n",
dev->name, err);
return err;
}
}
if (priv->iw_mode == IW_MODE_MONITOR) {
/* Enable monitor mode */
dev->type = ARPHRD_IEEE80211;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_MONITOR, 0, NULL);
} else {
/* Disable monitor mode */
dev->type = ARPHRD_ETHER;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_STOP, 0, NULL);
}
if (err)
return err;
/* Set promiscuity / multicast*/
priv->promiscuous = 0;
priv->mc_count = 0;
/* FIXME: what about netif_tx_lock */
__orinoco_set_multicast_list(dev);
return 0;
}
/* FIXME: return int? */
static void
__orinoco_set_multicast_list(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
int promisc, mc_count;
/* The Hermes doesn't seem to have an allmulti mode, so we go
* into promiscuous mode and let the upper levels deal. */
if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
(dev->mc_count > MAX_MULTICAST(priv)) ) {
promisc = 1;
mc_count = 0;
} else {
promisc = 0;
mc_count = dev->mc_count;
}
if (promisc != priv->promiscuous) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPROMISCUOUSMODE,
promisc);
if (err) {
printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
dev->name, err);
} else
priv->promiscuous = promisc;
}
/* If we're not in promiscuous mode, then we need to set the
* group address if either we want to multicast, or if we were
* multicasting and want to stop */
if (! promisc && (mc_count || priv->mc_count) ) {
struct dev_mc_list *p = dev->mc_list;
struct hermes_multicast mclist;
int i;
for (i = 0; i < mc_count; i++) {
/* paranoia: is list shorter than mc_count? */
BUG_ON(! p);
/* paranoia: bad address size in list? */
BUG_ON(p->dmi_addrlen != ETH_ALEN);
memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
p = p->next;
}
if (p)
printk(KERN_WARNING "%s: Multicast list is "
"longer than mc_count\n", dev->name);
err = hermes_write_ltv(hw, USER_BAP,
HERMES_RID_CNFGROUPADDRESSES,
HERMES_BYTES_TO_RECLEN(mc_count * ETH_ALEN),
&mclist);
if (err)
printk(KERN_ERR "%s: Error %d setting multicast list.\n",
dev->name, err);
else
priv->mc_count = mc_count;
}
}
/* This must be called from user context, without locks held - use
* schedule_work() */
static void orinoco_reset(struct work_struct *work)
{
struct orinoco_private *priv =
container_of(work, struct orinoco_private, reset_work);
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
int err;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
/* When the hardware becomes available again, whatever
* detects that is responsible for re-initializing
* it. So no need for anything further */
return;
netif_stop_queue(dev);
/* Shut off interrupts. Depending on what state the hardware
* is in, this might not work, but we'll try anyway */
hermes_set_irqmask(hw, 0);
hermes_write_regn(hw, EVACK, 0xffff);
priv->hw_unavailable++;
priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
netif_carrier_off(dev);
orinoco_unlock(priv, &flags);
/* Scanning support: Cleanup of driver struct */
orinoco_clear_scan_results(priv, 0);
priv->scan_inprogress = 0;
if (priv->hard_reset) {
err = (*priv->hard_reset)(priv);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d "
"performing hard reset\n", dev->name, err);
goto disable;
}
}
err = orinoco_reinit_firmware(dev);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
dev->name, err);
goto disable;
}
spin_lock_irq(&priv->lock); /* This has to be called from user context */
priv->hw_unavailable--;
/* priv->open or priv->hw_unavailable might have changed while
* we dropped the lock */
if (priv->open && (! priv->hw_unavailable)) {
err = __orinoco_up(dev);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
dev->name, err);
} else
dev->trans_start = jiffies;
}
spin_unlock_irq(&priv->lock);
return;
disable:
hermes_set_irqmask(hw, 0);
netif_device_detach(dev);
printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
}
/********************************************************************/
/* Interrupt handler */
/********************************************************************/
static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
{
printk(KERN_DEBUG "%s: TICK\n", dev->name);
}
static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
{
/* This seems to happen a fair bit under load, but ignoring it
seems to work fine...*/
printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
dev->name);
}
irqreturn_t orinoco_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int count = MAX_IRQLOOPS_PER_IRQ;
u16 evstat, events;
/* These are used to detect a runaway interrupt situation */
/* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
* we panic and shut down the hardware */
static int last_irq_jiffy = 0; /* jiffies value the last time
* we were called */
static int loops_this_jiffy = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0) {
/* If hw is unavailable - we don't know if the irq was
* for us or not */
return IRQ_HANDLED;
}
evstat = hermes_read_regn(hw, EVSTAT);
events = evstat & hw->inten;
if (! events) {
orinoco_unlock(priv, &flags);
return IRQ_NONE;
}
if (jiffies != last_irq_jiffy)
loops_this_jiffy = 0;
last_irq_jiffy = jiffies;
while (events && count--) {
if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
printk(KERN_WARNING "%s: IRQ handler is looping too "
"much! Resetting.\n", dev->name);
/* Disable interrupts for now */
hermes_set_irqmask(hw, 0);
schedule_work(&priv->reset_work);
break;
}
/* Check the card hasn't been removed */
if (! hermes_present(hw)) {
DEBUG(0, "orinoco_interrupt(): card removed\n");
break;
}
if (events & HERMES_EV_TICK)
__orinoco_ev_tick(dev, hw);
if (events & HERMES_EV_WTERR)
__orinoco_ev_wterr(dev, hw);
if (events & HERMES_EV_INFDROP)
__orinoco_ev_infdrop(dev, hw);
if (events & HERMES_EV_INFO)
__orinoco_ev_info(dev, hw);
if (events & HERMES_EV_RX)
__orinoco_ev_rx(dev, hw);
if (events & HERMES_EV_TXEXC)
__orinoco_ev_txexc(dev, hw);
if (events & HERMES_EV_TX)
__orinoco_ev_tx(dev, hw);
if (events & HERMES_EV_ALLOC)
__orinoco_ev_alloc(dev, hw);
hermes_write_regn(hw, EVACK, evstat);
evstat = hermes_read_regn(hw, EVSTAT);
events = evstat & hw->inten;
};
orinoco_unlock(priv, &flags);
return IRQ_HANDLED;
}
/********************************************************************/
/* Initialization */
/********************************************************************/
struct comp_id {
u16 id, variant, major, minor;
} __attribute__ ((packed));
static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
{
if (nic_id->id < 0x8000)
return FIRMWARE_TYPE_AGERE;
else if (nic_id->id == 0x8000 && nic_id->major == 0)
return FIRMWARE_TYPE_SYMBOL;
else
return FIRMWARE_TYPE_INTERSIL;
}
/* Set priv->firmware type, determine firmware properties */
static int determine_firmware(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
struct comp_id nic_id, sta_id;
unsigned int firmver;
char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2)));
/* Get the hardware version */
err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
if (err) {
printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
dev->name, err);
return err;
}
le16_to_cpus(&nic_id.id);
le16_to_cpus(&nic_id.variant);
le16_to_cpus(&nic_id.major);
le16_to_cpus(&nic_id.minor);
printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
dev->name, nic_id.id, nic_id.variant,
nic_id.major, nic_id.minor);
priv->firmware_type = determine_firmware_type(&nic_id);
/* Get the firmware version */
err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
if (err) {
printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
dev->name, err);
return err;
}
le16_to_cpus(&sta_id.id);
le16_to_cpus(&sta_id.variant);
le16_to_cpus(&sta_id.major);
le16_to_cpus(&sta_id.minor);
printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
dev->name, sta_id.id, sta_id.variant,
sta_id.major, sta_id.minor);
switch (sta_id.id) {
case 0x15:
printk(KERN_ERR "%s: Primary firmware is active\n",
dev->name);
return -ENODEV;
case 0x14b:
printk(KERN_ERR "%s: Tertiary firmware is active\n",
dev->name);
return -ENODEV;
case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
case 0x21: /* Symbol Spectrum24 Trilogy */
break;
default:
printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
dev->name);
break;
}
/* Default capabilities */
priv->has_sensitivity = 1;
priv->has_mwo = 0;
priv->has_preamble = 0;
priv->has_port3 = 1;
priv->has_ibss = 1;
priv->has_wep = 0;
priv->has_big_wep = 0;
/* Determine capabilities from the firmware version */
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
/* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
priv->has_ibss = (firmver >= 0x60006);
priv->has_wep = (firmver >= 0x40020);
priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
Gold cards from the others? */
priv->has_mwo = (firmver >= 0x60000);
priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
priv->ibss_port = 1;
priv->has_hostscan = (firmver >= 0x8000a);
priv->broken_monitor = (firmver >= 0x80000);
/* Tested with Agere firmware :
* 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
* Tested CableTron firmware : 4.32 => Anton */
break;
case FIRMWARE_TYPE_SYMBOL:
/* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
/* Intel MAC : 00:02:B3:* */
/* 3Com MAC : 00:50:DA:* */
memset(tmp, 0, sizeof(tmp));
/* Get the Symbol firmware version */
err = hermes_read_ltv(hw, USER_BAP,
HERMES_RID_SECONDARYVERSION_SYMBOL,
SYMBOL_MAX_VER_LEN, NULL, &tmp);
if (err) {
printk(KERN_WARNING
"%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
dev->name, err);
firmver = 0;
tmp[0] = '\0';
} else {
/* The firmware revision is a string, the format is
* something like : "V2.20-01".
* Quick and dirty parsing... - Jean II
*/
firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
| ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
| (tmp[7] - '0');
tmp[SYMBOL_MAX_VER_LEN] = '\0';
}
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Symbol %s", tmp);
priv->has_ibss = (firmver >= 0x20000);
priv->has_wep = (firmver >= 0x15012);
priv->has_big_wep = (firmver >= 0x20000);
priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
(firmver >= 0x29000 && firmver < 0x30000) ||
firmver >= 0x31000;
priv->has_preamble = (firmver >= 0x20000);
priv->ibss_port = 4;
priv->broken_disableport = (firmver == 0x25013) ||
(firmver >= 0x30000 && firmver <= 0x31000);
priv->has_hostscan = (firmver >= 0x31001) ||
(firmver >= 0x29057 && firmver < 0x30000);
/* Tested with Intel firmware : 0x20015 => Jean II */
/* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
break;
case FIRMWARE_TYPE_INTERSIL:
/* D-Link, Linksys, Adtron, ZoomAir, and many others...
* Samsung, Compaq 100/200 and Proxim are slightly
* different and less well tested */
/* D-Link MAC : 00:40:05:* */
/* Addtron MAC : 00:90:D1:* */
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Intersil %d.%d.%d", sta_id.major, sta_id.minor,
sta_id.variant);
firmver = ((unsigned long)sta_id.major << 16) |
((unsigned long)sta_id.minor << 8) | sta_id.variant;
priv->has_ibss = (firmver >= 0x000700); /* FIXME */
priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
priv->has_pm = (firmver >= 0x000700);
priv->has_hostscan = (firmver >= 0x010301);
if (firmver >= 0x000800)
priv->ibss_port = 0;
else {
printk(KERN_NOTICE "%s: Intersil firmware earlier "
"than v0.8.x - several features not supported\n",
dev->name);
priv->ibss_port = 1;
}
break;
}
printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
priv->fw_name);
return 0;
}
static int orinoco_init(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
struct hermes_idstring nickbuf;
u16 reclen;
int len;
DECLARE_MAC_BUF(mac);
/* No need to lock, the hw_unavailable flag is already set in
* alloc_orinocodev() */
priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
/* Initialize the firmware */
err = hermes_init(hw);
if (err != 0) {
printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
dev->name, err);
goto out;
}
err = determine_firmware(dev);
if (err != 0) {
printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
dev->name);
goto out;
}
if (priv->has_port3)
printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
if (priv->has_ibss)
printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
dev->name);
if (priv->has_wep) {
printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
if (priv->has_big_wep)
printk("104-bit key\n");
else
printk("40-bit key\n");
}
/* Get the MAC address */
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
ETH_ALEN, NULL, dev->dev_addr);
if (err) {
printk(KERN_WARNING "%s: failed to read MAC address!\n",
dev->name);
goto out;
}
printk(KERN_DEBUG "%s: MAC address %s\n",
dev->name, print_mac(mac, dev->dev_addr));
/* Get the station name */
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
sizeof(nickbuf), &reclen, &nickbuf);
if (err) {
printk(KERN_ERR "%s: failed to read station name\n",
dev->name);
goto out;
}
if (nickbuf.len)
len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
else
len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
memcpy(priv->nick, &nickbuf.val, len);
priv->nick[len] = '\0';
printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
err = orinoco_allocate_fid(dev);
if (err) {
printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
dev->name);
goto out;
}
/* Get allowed channels */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
&priv->channel_mask);
if (err) {
printk(KERN_ERR "%s: failed to read channel list!\n",
dev->name);
goto out;
}
/* Get initial AP density */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
&priv->ap_density);
if (err || priv->ap_density < 1 || priv->ap_density > 3) {
priv->has_sensitivity = 0;
}
/* Get initial RTS threshold */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
&priv->rts_thresh);
if (err) {
printk(KERN_ERR "%s: failed to read RTS threshold!\n",
dev->name);
goto out;
}
/* Get initial fragmentation settings */
if (priv->has_mwo)
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
&priv->mwo_robust);
else
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
&priv->frag_thresh);
if (err) {
printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
dev->name);
goto out;
}
/* Power management setup */
if (priv->has_pm) {
priv->pm_on = 0;
priv->pm_mcast = 1;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION,
&priv->pm_period);
if (err) {
printk(KERN_ERR "%s: failed to read power management period!\n",
dev->name);
goto out;
}
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMHOLDOVERDURATION,
&priv->pm_timeout);
if (err) {
printk(KERN_ERR "%s: failed to read power management timeout!\n",
dev->name);
goto out;
}
}
/* Preamble setup */
if (priv->has_preamble) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFPREAMBLE_SYMBOL,
&priv->preamble);
if (err)
goto out;
}
/* Set up the default configuration */
priv->iw_mode = IW_MODE_INFRA;
/* By default use IEEE/IBSS ad-hoc mode if we have it */
priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
set_port_type(priv);
priv->channel = 0; /* use firmware default */
priv->promiscuous = 0;
priv->wep_on = 0;
priv->tx_key = 0;
/* Make the hardware available, as long as it hasn't been
* removed elsewhere (e.g. by PCMCIA hot unplug) */
spin_lock_irq(&priv->lock);
priv->hw_unavailable--;
spin_unlock_irq(&priv->lock);
printk(KERN_DEBUG "%s: ready\n", dev->name);
out:
return err;
}
struct net_device *alloc_orinocodev(int sizeof_card,
int (*hard_reset)(struct orinoco_private *))
{
struct net_device *dev;
struct orinoco_private *priv;
dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
if (! dev)
return NULL;
priv = netdev_priv(dev);
priv->ndev = dev;
if (sizeof_card)
priv->card = (void *)((unsigned long)priv
+ sizeof(struct orinoco_private));
else
priv->card = NULL;
if (orinoco_bss_data_allocate(priv))
goto err_out_free;
orinoco_bss_data_init(priv);
/* Setup / override net_device fields */
dev->init = orinoco_init;
dev->hard_start_xmit = orinoco_xmit;
dev->tx_timeout = orinoco_tx_timeout;
dev->watchdog_timeo = HZ; /* 1 second timeout */
dev->get_stats = orinoco_get_stats;
dev->ethtool_ops = &orinoco_ethtool_ops;
dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
#ifdef WIRELESS_SPY
priv->wireless_data.spy_data = &priv->spy_data;
dev->wireless_data = &priv->wireless_data;
#endif
dev->change_mtu = orinoco_change_mtu;
dev->set_multicast_list = orinoco_set_multicast_list;
/* we use the default eth_mac_addr for setting the MAC addr */
/* Set up default callbacks */
dev->open = orinoco_open;
dev->stop = orinoco_stop;
priv->hard_reset = hard_reset;
spin_lock_init(&priv->lock);
priv->open = 0;
priv->hw_unavailable = 1; /* orinoco_init() must clear this
* before anything else touches the
* hardware */
INIT_WORK(&priv->reset_work, orinoco_reset);
INIT_WORK(&priv->join_work, orinoco_join_ap);
INIT_WORK(&priv->wevent_work, orinoco_send_wevents);
netif_carrier_off(dev);
priv->last_linkstatus = 0xffff;
return dev;
err_out_free:
free_netdev(dev);
return NULL;
}
void free_orinocodev(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
orinoco_bss_data_free(priv);
free_netdev(dev);
}
/********************************************************************/
/* Wireless extensions */
/********************************************************************/
/* Return : < 0 -> error code ; >= 0 -> length */
static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
char buf[IW_ESSID_MAX_SIZE+1])
{
hermes_t *hw = &priv->hw;
int err = 0;
struct hermes_idstring essidbuf;
char *p = (char *)(&essidbuf.val);
int len;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (strlen(priv->desired_essid) > 0) {
/* We read the desired SSID from the hardware rather
than from priv->desired_essid, just in case the
firmware is allowed to change it on us. I'm not
sure about this */
/* My guess is that the OWNSSID should always be whatever
* we set to the card, whereas CURRENT_SSID is the one that
* may change... - Jean II */
u16 rid;
*active = 1;
rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
HERMES_RID_CNFDESIREDSSID;
err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
NULL, &essidbuf);
if (err)
goto fail_unlock;
} else {
*active = 0;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
sizeof(essidbuf), NULL, &essidbuf);
if (err)
goto fail_unlock;
}
len = le16_to_cpu(essidbuf.len);
BUG_ON(len > IW_ESSID_MAX_SIZE);
memset(buf, 0, IW_ESSID_MAX_SIZE);
memcpy(buf, p, len);
err = len;
fail_unlock:
orinoco_unlock(priv, &flags);
return err;
}
static long orinoco_hw_get_freq(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
u16 channel;
long freq = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
if (err)
goto out;
/* Intersil firmware 1.3.5 returns 0 when the interface is down */
if (channel == 0) {
err = -EBUSY;
goto out;
}
if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
priv->ndev->name, channel);
err = -EBUSY;
goto out;
}
freq = channel_frequency[channel-1] * 100000;
out:
orinoco_unlock(priv, &flags);
if (err > 0)
err = -EBUSY;
return err ? err : freq;
}
static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
int *numrates, s32 *rates, int max)
{
hermes_t *hw = &priv->hw;
struct hermes_idstring list;
unsigned char *p = (unsigned char *)&list.val;
int err = 0;
int num;
int i;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
sizeof(list), NULL, &list);
orinoco_unlock(priv, &flags);
if (err)
return err;
num = le16_to_cpu(list.len);
*numrates = num;
num = min(num, max);
for (i = 0; i < num; i++) {
rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
}
return 0;
}
static int orinoco_ioctl_getname(struct net_device *dev,
struct iw_request_info *info,
char *name,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int numrates;
int err;
err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
if (!err && (numrates > 2))
strcpy(name, "IEEE 802.11b");
else
strcpy(name, "IEEE 802.11-DS");
return 0;
}
static int orinoco_ioctl_setwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Enable automatic roaming - no sanity checks are needed */
if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
priv->bssid_fixed = 0;
memset(priv->desired_bssid, 0, ETH_ALEN);
/* "off" means keep existing connection */
if (ap_addr->sa_data[0] == 0) {
__orinoco_hw_set_wap(priv);
err = 0;
}
goto out;
}
if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
"support manual roaming\n",
dev->name);
err = -EOPNOTSUPP;
goto out;
}
if (priv->iw_mode != IW_MODE_INFRA) {
printk(KERN_WARNING "%s: Manual roaming supported only in "
"managed mode\n", dev->name);
err = -EOPNOTSUPP;
goto out;
}
/* Intersil firmware hangs without Desired ESSID */
if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
strlen(priv->desired_essid) == 0) {
printk(KERN_WARNING "%s: Desired ESSID must be set for "
"manual roaming\n", dev->name);
err = -EOPNOTSUPP;
goto out;
}
/* Finally, enable manual roaming */
priv->bssid_fixed = 1;
memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
ap_addr->sa_family = ARPHRD_ETHER;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
ETH_ALEN, NULL, ap_addr->sa_data);
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setmode(struct net_device *dev,
struct iw_request_info *info,
u32 *mode,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (priv->iw_mode == *mode)
return 0;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (*mode) {
case IW_MODE_ADHOC:
if (!priv->has_ibss && !priv->has_port3)
err = -EOPNOTSUPP;
break;
case IW_MODE_INFRA:
break;
case IW_MODE_MONITOR:
if (priv->broken_monitor && !force_monitor) {
printk(KERN_WARNING "%s: Monitor mode support is "
"buggy in this firmware, not enabling\n",
dev->name);
err = -EOPNOTSUPP;
}
break;
default:
err = -EOPNOTSUPP;
break;
}
if (err == -EINPROGRESS) {
priv->iw_mode = *mode;
set_port_type(priv);
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getmode(struct net_device *dev,
struct iw_request_info *info,
u32 *mode,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
*mode = priv->iw_mode;
return 0;
}
static int orinoco_ioctl_getiwrange(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = 0;
struct iw_range *range = (struct iw_range *) extra;
int numrates;
int i, k;
rrq->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 14;
/* Set available channels/frequencies */
range->num_channels = NUM_CHANNELS;
k = 0;
for (i = 0; i < NUM_CHANNELS; i++) {
if (priv->channel_mask & (1 << i)) {
range->freq[k].i = i + 1;
range->freq[k].m = channel_frequency[i] * 100000;
range->freq[k].e = 1;
k++;
}
if (k >= IW_MAX_FREQUENCIES)
break;
}
range->num_frequency = k;
range->sensitivity = 3;
if (priv->has_wep) {
range->max_encoding_tokens = ORINOCO_MAX_KEYS;
range->encoding_size[0] = SMALL_KEY_SIZE;
range->num_encoding_sizes = 1;
if (priv->has_big_wep) {
range->encoding_size[1] = LARGE_KEY_SIZE;
range->num_encoding_sizes = 2;
}
}
if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
/* Quality stats meaningless in ad-hoc mode */
} else {
range->max_qual.qual = 0x8b - 0x2f;
range->max_qual.level = 0x2f - 0x95 - 1;
range->max_qual.noise = 0x2f - 0x95 - 1;
/* Need to get better values */
range->avg_qual.qual = 0x24;
range->avg_qual.level = 0xC2;
range->avg_qual.noise = 0x9E;
}
err = orinoco_hw_get_bitratelist(priv, &numrates,
range->bitrate, IW_MAX_BITRATES);
if (err)
return err;
range->num_bitrates = numrates;
/* Set an indication of the max TCP throughput in bit/s that we can
* expect using this interface. May be use for QoS stuff...
* Jean II */
if (numrates > 2)
range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
else
range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
range->min_rts = 0;
range->max_rts = 2347;
range->min_frag = 256;
range->max_frag = 2346;
range->min_pmp = 0;
range->max_pmp = 65535000;
range->min_pmt = 0;
range->max_pmt = 65535 * 1000; /* ??? */
range->pmp_flags = IW_POWER_PERIOD;
range->pmt_flags = IW_POWER_TIMEOUT;
range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
range->retry_flags = IW_RETRY_LIMIT;
range->r_time_flags = IW_RETRY_LIFETIME;
range->min_retry = 0;
range->max_retry = 65535; /* ??? */
range->min_r_time = 0;
range->max_r_time = 65535 * 1000; /* ??? */
/* Event capability (kernel) */
IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
/* Event capability (driver) */
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
return 0;
}
static int orinoco_ioctl_setiwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *keybuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int index = (erq->flags & IW_ENCODE_INDEX) - 1;
int setindex = priv->tx_key;
int enable = priv->wep_on;
int restricted = priv->wep_restrict;
u16 xlen = 0;
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (! priv->has_wep)
return -EOPNOTSUPP;
if (erq->pointer) {
/* We actually have a key to set - check its length */
if (erq->length > LARGE_KEY_SIZE)
return -E2BIG;
if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
return -E2BIG;
}
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (erq->length > 0) {
if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
index = priv->tx_key;
/* Adjust key length to a supported value */
if (erq->length > SMALL_KEY_SIZE) {
xlen = LARGE_KEY_SIZE;
} else if (erq->length > 0) {
xlen = SMALL_KEY_SIZE;
} else
xlen = 0;
/* Switch on WEP if off */
if ((!enable) && (xlen > 0)) {
setindex = index;
enable = 1;
}
} else {
/* Important note : if the user do "iwconfig eth0 enc off",
* we will arrive there with an index of -1. This is valid
* but need to be taken care off... Jean II */
if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
if((index != -1) || (erq->flags == 0)) {
err = -EINVAL;
goto out;
}
} else {
/* Set the index : Check that the key is valid */
if(priv->keys[index].len == 0) {
err = -EINVAL;
goto out;
}
setindex = index;
}
}
if (erq->flags & IW_ENCODE_DISABLED)
enable = 0;
if (erq->flags & IW_ENCODE_OPEN)
restricted = 0;
if (erq->flags & IW_ENCODE_RESTRICTED)
restricted = 1;
if (erq->pointer && erq->length > 0) {
priv->keys[index].len = cpu_to_le16(xlen);
memset(priv->keys[index].data, 0,
sizeof(priv->keys[index].data));
memcpy(priv->keys[index].data, keybuf, erq->length);
}
priv->tx_key = setindex;
/* Try fast key change if connected and only keys are changed */
if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
netif_carrier_ok(dev)) {
err = __orinoco_hw_setup_wepkeys(priv);
/* No need to commit if successful */
goto out;
}
priv->wep_on = enable;
priv->wep_restrict = restricted;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getiwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *keybuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int index = (erq->flags & IW_ENCODE_INDEX) - 1;
u16 xlen = 0;
unsigned long flags;
if (! priv->has_wep)
return -EOPNOTSUPP;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
index = priv->tx_key;
erq->flags = 0;
if (! priv->wep_on)
erq->flags |= IW_ENCODE_DISABLED;
erq->flags |= index + 1;
if (priv->wep_restrict)
erq->flags |= IW_ENCODE_RESTRICTED;
else
erq->flags |= IW_ENCODE_OPEN;
xlen = le16_to_cpu(priv->keys[index].len);
erq->length = xlen;
memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
orinoco_unlock(priv, &flags);
return 0;
}
static int orinoco_ioctl_setessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *essidbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
/* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
* anyway... - Jean II */
/* Hum... Should not use Wireless Extension constant (may change),
* should use our own... - Jean II */
if (erq->length > IW_ESSID_MAX_SIZE)
return -E2BIG;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
/* If not ANY, get the new ESSID */
if (erq->flags) {
memcpy(priv->desired_essid, essidbuf, erq->length);
}
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *essidbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int active;
int err = 0;
unsigned long flags;
if (netif_running(dev)) {
err = orinoco_hw_get_essid(priv, &active, essidbuf);
if (err < 0)
return err;
erq->length = err;
} else {
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE);
erq->length = strlen(priv->desired_essid);
orinoco_unlock(priv, &flags);
}
erq->flags = 1;
return 0;
}
static int orinoco_ioctl_setnick(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *nrq,
char *nickbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (nrq->length > IW_ESSID_MAX_SIZE)
return -E2BIG;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memset(priv->nick, 0, sizeof(priv->nick));
memcpy(priv->nick, nickbuf, nrq->length);
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getnick(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *nrq,
char *nickbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE);
orinoco_unlock(priv, &flags);
nrq->length = strlen(priv->nick);
return 0;
}
static int orinoco_ioctl_setfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int chan = -1;
unsigned long flags;
int err = -EINPROGRESS; /* Call commit handler */
/* In infrastructure mode the AP sets the channel */
if (priv->iw_mode == IW_MODE_INFRA)
return -EBUSY;
if ( (frq->e == 0) && (frq->m <= 1000) ) {
/* Setting by channel number */
chan = frq->m;
} else {
/* Setting by frequency - search the table */
int mult = 1;
int i;
for (i = 0; i < (6 - frq->e); i++)
mult *= 10;
for (i = 0; i < NUM_CHANNELS; i++)
if (frq->m == (channel_frequency[i] * mult))
chan = i+1;
}
if ( (chan < 1) || (chan > NUM_CHANNELS) ||
! (priv->channel_mask & (1 << (chan-1)) ) )
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->channel = chan;
if (priv->iw_mode == IW_MODE_MONITOR) {
/* Fast channel change - no commit if successful */
hermes_t *hw = &priv->hw;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_SET_CHANNEL,
chan, NULL);
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int tmp;
/* Locking done in there */
tmp = orinoco_hw_get_freq(priv);
if (tmp < 0) {
return tmp;
}
frq->m = tmp;
frq->e = 1;
return 0;
}
static int orinoco_ioctl_getsens(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
u16 val;
int err;
unsigned long flags;
if (!priv->has_sensitivity)
return -EOPNOTSUPP;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFSYSTEMSCALE, &val);
orinoco_unlock(priv, &flags);
if (err)
return err;
srq->value = val;
srq->fixed = 0; /* auto */
return 0;
}
static int orinoco_ioctl_setsens(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = srq->value;
unsigned long flags;
if (!priv->has_sensitivity)
return -EOPNOTSUPP;
if ((val < 1) || (val > 3))
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->ap_density = val;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_setrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = rrq->value;
unsigned long flags;
if (rrq->disabled)
val = 2347;
if ( (val < 0) || (val > 2347) )
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->rts_thresh = val;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
rrq->value = priv->rts_thresh;
rrq->disabled = (rrq->value == 2347);
rrq->fixed = 1;
return 0;
}
static int orinoco_ioctl_setfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (priv->has_mwo) {
if (frq->disabled)
priv->mwo_robust = 0;
else {
if (frq->fixed)
printk(KERN_WARNING "%s: Fixed fragmentation is "
"not supported on this firmware. "
"Using MWO robust instead.\n", dev->name);
priv->mwo_robust = 1;
}
} else {
if (frq->disabled)
priv->frag_thresh = 2346;
else {
if ( (frq->value < 256) || (frq->value > 2346) )
err = -EINVAL;
else
priv->frag_thresh = frq->value & ~0x1; /* must be even */
}
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
u16 val;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (priv->has_mwo) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
&val);
if (err)
val = 0;
frq->value = val ? 2347 : 0;
frq->disabled = ! val;
frq->fixed = 0;
} else {
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
&val);
if (err)
val = 0;
frq->value = val;
frq->disabled = (val >= 2346);
frq->fixed = 1;
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int ratemode = -1;
int bitrate; /* 100s of kilobits */
int i;
unsigned long flags;
/* As the user space doesn't know our highest rate, it uses -1
* to ask us to set the highest rate. Test it using "iwconfig
* ethX rate auto" - Jean II */
if (rrq->value == -1)
bitrate = 110;
else {
if (rrq->value % 100000)
return -EINVAL;
bitrate = rrq->value / 100000;
}
if ( (bitrate != 10) && (bitrate != 20) &&
(bitrate != 55) && (bitrate != 110) )
return -EINVAL;
for (i = 0; i < BITRATE_TABLE_SIZE; i++)
if ( (bitrate_table[i].bitrate == bitrate) &&
(bitrate_table[i].automatic == ! rrq->fixed) ) {
ratemode = i;
break;
}
if (ratemode == -1)
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->bitratemode = ratemode;
orinoco_unlock(priv, &flags);
return -EINPROGRESS;
}
static int orinoco_ioctl_getrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
int ratemode;
int i;
u16 val;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
ratemode = priv->bitratemode;
BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
rrq->value = bitrate_table[ratemode].bitrate * 100000;
rrq->fixed = ! bitrate_table[ratemode].automatic;
rrq->disabled = 0;
/* If the interface is running we try to find more about the
current mode */
if (netif_running(dev)) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CURRENTTXRATE, &val);
if (err)
goto out;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
/* Note : in Lucent firmware, the return value of
* HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
* and therefore is totally different from the
* encoding of HERMES_RID_CNFTXRATECONTROL.
* Don't forget that 6Mb/s is really 5.5Mb/s */
if (val == 6)
rrq->value = 5500000;
else
rrq->value = val * 1000000;
break;
case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
for (i = 0; i < BITRATE_TABLE_SIZE; i++)
if (bitrate_table[i].intersil_txratectrl == val) {
ratemode = i;
break;
}
if (i >= BITRATE_TABLE_SIZE)
printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
dev->name, val);
rrq->value = bitrate_table[ratemode].bitrate * 100000;
break;
default:
BUG();
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *prq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (prq->disabled) {
priv->pm_on = 0;
} else {
switch (prq->flags & IW_POWER_MODE) {
case IW_POWER_UNICAST_R:
priv->pm_mcast = 0;
priv->pm_on = 1;
break;
case IW_POWER_ALL_R:
priv->pm_mcast = 1;
priv->pm_on = 1;
break;
case IW_POWER_ON:
/* No flags : but we may have a value - Jean II */
break;
default:
err = -EINVAL;
goto out;
}
if (prq->flags & IW_POWER_TIMEOUT) {
priv->pm_on = 1;
priv->pm_timeout = prq->value / 1000;
}
if (prq->flags & IW_POWER_PERIOD) {
priv->pm_on = 1;
priv->pm_period = prq->value / 1000;
}
/* It's valid to not have a value if we are just toggling
* the flags... Jean II */
if(!priv->pm_on) {
err = -EINVAL;
goto out;
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *prq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
u16 enable, period, timeout, mcast;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION, &period);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
if (err)
goto out;
prq->disabled = !enable;
/* Note : by default, display the period */
if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
prq->flags = IW_POWER_TIMEOUT;
prq->value = timeout * 1000;
} else {
prq->flags = IW_POWER_PERIOD;
prq->value = period * 1000;
}
if (mcast)
prq->flags |= IW_POWER_ALL_R;
else
prq->flags |= IW_POWER_UNICAST_R;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
u16 short_limit, long_limit, lifetime;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
&short_limit);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
&long_limit);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
&lifetime);
if (err)
goto out;
rrq->disabled = 0; /* Can't be disabled */
/* Note : by default, display the retry number */
if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
rrq->flags = IW_RETRY_LIFETIME;
rrq->value = lifetime * 1000; /* ??? */
} else {
/* By default, display the min number */
if ((rrq->flags & IW_RETRY_LONG)) {
rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
rrq->value = long_limit;
} else {
rrq->flags = IW_RETRY_LIMIT;
rrq->value = short_limit;
if(short_limit != long_limit)
rrq->flags |= IW_RETRY_SHORT;
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_reset(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
if (! capable(CAP_NET_ADMIN))
return -EPERM;
if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
/* Firmware reset */
orinoco_reset(&priv->reset_work);
} else {
printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
schedule_work(&priv->reset_work);
}
return 0;
}
static int orinoco_ioctl_setibssport(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = *( (int *) extra );
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->ibss_port = val ;
/* Actually update the mode we are using */
set_port_type(priv);
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getibssport(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
*val = priv->ibss_port;
return 0;
}
static int orinoco_ioctl_setport3(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = *( (int *) extra );
int err = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (val) {
case 0: /* Try to do IEEE ad-hoc mode */
if (! priv->has_ibss) {
err = -EINVAL;
break;
}
priv->prefer_port3 = 0;
break;
case 1: /* Try to do Lucent proprietary ad-hoc mode */
if (! priv->has_port3) {
err = -EINVAL;
break;
}
priv->prefer_port3 = 1;
break;
default:
err = -EINVAL;
}
if (! err) {
/* Actually update the mode we are using */
set_port_type(priv);
err = -EINPROGRESS;
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getport3(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
*val = priv->prefer_port3;
return 0;
}
static int orinoco_ioctl_setpreamble(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
int val;
if (! priv->has_preamble)
return -EOPNOTSUPP;
/* 802.11b has recently defined some short preamble.
* Basically, the Phy header has been reduced in size.
* This increase performance, especially at high rates
* (the preamble is transmitted at 1Mb/s), unfortunately
* this give compatibility troubles... - Jean II */
val = *( (int *) extra );
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (val)
priv->preamble = 1;
else
priv->preamble = 0;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getpreamble(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
if (! priv->has_preamble)
return -EOPNOTSUPP;
*val = priv->preamble;
return 0;
}
/* ioctl interface to hermes_read_ltv()
* To use with iwpriv, pass the RID as the token argument, e.g.
* iwpriv get_rid [0xfc00]
* At least Wireless Tools 25 is required to use iwpriv.
* For Wireless Tools 25 and 26 append "dummy" are the end. */
static int orinoco_ioctl_getrid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int rid = data->flags;
u16 length;
int err;
unsigned long flags;
/* It's a "get" function, but we don't want users to access the
* WEP key and other raw firmware data */
if (! capable(CAP_NET_ADMIN))
return -EPERM;
if (rid < 0xfc00 || rid > 0xffff)
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
extra);
if (err)
goto out;
data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
MAX_RID_LEN);
out:
orinoco_unlock(priv, &flags);
return err;
}
/* Trigger a scan (look for other cells in the vicinity */
static int orinoco_ioctl_setscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
unsigned long flags;
/* Note : you may have realised that, as this is a SET operation,
* this is privileged and therefore a normal user can't
* perform scanning.
* This is not an error, while the device perform scanning,
* traffic doesn't flow, so it's a perfect DoS...
* Jean II */
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Scanning with port 0 disabled would fail */
if (!netif_running(dev)) {
err = -ENETDOWN;
goto out;
}
/* In monitor mode, the scan results are always empty.
* Probe responses are passed to the driver as received
* frames and could be processed in software. */
if (priv->iw_mode == IW_MODE_MONITOR) {
err = -EOPNOTSUPP;
goto out;
}
/* Note : because we don't lock out the irq handler, the way
* we access scan variables in priv is critical.
* o scan_inprogress : not touched by irq handler
* o scan_mode : not touched by irq handler
* o scan_len : synchronised with scan_result
* Before modifying anything on those variables, please think hard !
* Jean II */
/* Save flags */
priv->scan_mode = srq->flags;
/* Always trigger scanning, even if it's in progress.
* This way, if the info frame get lost, we will recover somewhat
* gracefully - Jean II */
if (priv->has_hostscan) {
switch (priv->firmware_type) {
case FIRMWARE_TYPE_SYMBOL:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFHOSTSCAN_SYMBOL,
HERMES_HOSTSCAN_SYMBOL_ONCE |
HERMES_HOSTSCAN_SYMBOL_BCAST);
break;
case FIRMWARE_TYPE_INTERSIL: {
__le16 req[3];
req[0] = cpu_to_le16(0x3fff); /* All channels */
req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
req[2] = 0; /* Any ESSID */
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFHOSTSCAN, &req);
}
break;
case FIRMWARE_TYPE_AGERE:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSCANSSID_AGERE,
0); /* Any ESSID */
if (err)
break;
err = hermes_inquire(hw, HERMES_INQ_SCAN);
break;
}
} else
err = hermes_inquire(hw, HERMES_INQ_SCAN);
/* One more client */
if (! err)
priv->scan_inprogress = 1;
out:
orinoco_unlock(priv, &flags);
return err;
}
#define MAX_CUSTOM_LEN 64
/* Translate scan data returned from the card to a card independant
* format that the Wireless Tools will understand - Jean II
* Return message length or -errno for fatal errors */
static inline char *orinoco_translate_scan(struct net_device *dev,
struct iw_request_info *info,
char *current_ev,
char *end_buf,
union hermes_scan_info *bss,
unsigned int last_scanned)
{
struct orinoco_private *priv = netdev_priv(dev);
u16 capabilities;
u16 channel;
struct iw_event iwe; /* Temporary buffer */
char *p;
char custom[MAX_CUSTOM_LEN];
/* First entry *MUST* be the AP MAC address */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, bss->a.bssid, ETH_ALEN);
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_ADDR_LEN);
/* Other entries will be displayed in the order we give them */
/* Add the ESSID */
iwe.u.data.length = le16_to_cpu(bss->a.essid_len);
if (iwe.u.data.length > 32)
iwe.u.data.length = 32;
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, bss->a.essid);
/* Add mode */
iwe.cmd = SIOCGIWMODE;
capabilities = le16_to_cpu(bss->a.capabilities);
if (capabilities & 0x3) {
if (capabilities & 0x1)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_UINT_LEN);
}
channel = bss->s.channel;
if ((channel >= 1) && (channel <= NUM_CHANNELS)) {
/* Add frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = channel_frequency[channel-1] * 100000;
iwe.u.freq.e = 1;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_FREQ_LEN);
}
/* Add quality statistics */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = 0x10; /* no link quality */
iwe.u.qual.level = (__u8) le16_to_cpu(bss->a.level) - 0x95;
iwe.u.qual.noise = (__u8) le16_to_cpu(bss->a.noise) - 0x95;
/* Wireless tools prior to 27.pre22 will show link quality
* anyway, so we provide a reasonable value. */
if (iwe.u.qual.level > iwe.u.qual.noise)
iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
else
iwe.u.qual.qual = 0;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_QUAL_LEN);
/* Add encryption capability */
iwe.cmd = SIOCGIWENCODE;
if (capabilities & 0x10)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, bss->a.essid);
/* Add EXTRA: Age to display seconds since last beacon/probe response
* for given network. */
iwe.cmd = IWEVCUSTOM;
p = custom;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
" Last beacon: %dms ago",
jiffies_to_msecs(jiffies - last_scanned));
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Bit rate is not available in Lucent/Agere firmwares */
if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
char *current_val = current_ev + iwe_stream_lcp_len(info);
int i;
int step;
if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
step = 2;
else
step = 1;
iwe.cmd = SIOCGIWRATE;
/* Those two flags are ignored... */
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
/* Max 10 values */
for (i = 0; i < 10; i += step) {
/* NULL terminated */
if (bss->p.rates[i] == 0x0)
break;
/* Bit rate given in 500 kb/s units (+ 0x80) */
iwe.u.bitrate.value = ((bss->p.rates[i] & 0x7f) * 500000);
current_val = iwe_stream_add_value(info, current_ev,
current_val,
end_buf, &iwe,
IW_EV_PARAM_LEN);
}
/* Check if we added any event */
if ((current_val - current_ev) > iwe_stream_lcp_len(info))
current_ev = current_val;
}
return current_ev;
}
/* Return results of a scan */
static int orinoco_ioctl_getscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
bss_element *bss;
int err = 0;
unsigned long flags;
char *current_ev = extra;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (priv->scan_inprogress) {
/* Important note : we don't want to block the caller
* until results are ready for various reasons.
* First, managing wait queues is complex and racy.
* Second, we grab some rtnetlink lock before comming
* here (in dev_ioctl()).
* Third, we generate an Wireless Event, so the
* caller can wait itself on that - Jean II */
err = -EAGAIN;
goto out;
}
list_for_each_entry(bss, &priv->bss_list, list) {
/* Translate to WE format this entry */
current_ev = orinoco_translate_scan(dev, info, current_ev,
extra + srq->length,
&bss->bss,
bss->last_scanned);
/* Check if there is space for one more entry */
if ((extra + srq->length - current_ev) <= IW_EV_ADDR_LEN) {
/* Ask user space to try again with a bigger buffer */
err = -E2BIG;
goto out;
}
}
srq->length = (current_ev - extra);
srq->flags = (__u16) priv->scan_mode;
out:
orinoco_unlock(priv, &flags);
return err;
}
/* Commit handler, called after set operations */
static int orinoco_ioctl_commit(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
unsigned long flags;
int err = 0;
if (!priv->open)
return 0;
if (priv->broken_disableport) {
orinoco_reset(&priv->reset_work);
return 0;
}
if (orinoco_lock(priv, &flags) != 0)
return err;
err = hermes_disable_port(hw, 0);
if (err) {
printk(KERN_WARNING "%s: Unable to disable port "
"while reconfiguring card\n", dev->name);
priv->broken_disableport = 1;
goto out;
}
err = __orinoco_program_rids(dev);
if (err) {
printk(KERN_WARNING "%s: Unable to reconfigure card\n",
dev->name);
goto out;
}
err = hermes_enable_port(hw, 0);
if (err) {
printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
dev->name);
goto out;
}
out:
if (err) {
printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
schedule_work(&priv->reset_work);
err = 0;
}
orinoco_unlock(priv, &flags);
return err;
}
static const struct iw_priv_args orinoco_privtab[] = {
{ SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
{ SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
{ SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_port3" },
{ SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_port3" },
{ SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_preamble" },
{ SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_preamble" },
{ SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_ibssport" },
{ SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_ibssport" },
{ SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
"get_rid" },
};
/*
* Structures to export the Wireless Handlers
*/
static const iw_handler orinoco_handler[] = {
[SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
[SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
[SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
[SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
[SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
[SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
[SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
[SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
[SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
[SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
[SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
[SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
[SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
[SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
[SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
[SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
[SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
[SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
[SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
[SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
[SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
[SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
[SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
[SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
[SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
[SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
[SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
[SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
[SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
[SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
[SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
[SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
};
/*
Added typecasting since we no longer use iwreq_data -- Moustafa
*/
static const iw_handler orinoco_private_handler[] = {
[0] = (iw_handler) orinoco_ioctl_reset,
[1] = (iw_handler) orinoco_ioctl_reset,
[2] = (iw_handler) orinoco_ioctl_setport3,
[3] = (iw_handler) orinoco_ioctl_getport3,
[4] = (iw_handler) orinoco_ioctl_setpreamble,
[5] = (iw_handler) orinoco_ioctl_getpreamble,
[6] = (iw_handler) orinoco_ioctl_setibssport,
[7] = (iw_handler) orinoco_ioctl_getibssport,
[9] = (iw_handler) orinoco_ioctl_getrid,
};
static const struct iw_handler_def orinoco_handler_def = {
.num_standard = ARRAY_SIZE(orinoco_handler),
.num_private = ARRAY_SIZE(orinoco_private_handler),
.num_private_args = ARRAY_SIZE(orinoco_privtab),
.standard = orinoco_handler,
.private = orinoco_private_handler,
.private_args = orinoco_privtab,
.get_wireless_stats = orinoco_get_wireless_stats,
};
static void orinoco_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct orinoco_private *priv = netdev_priv(dev);
strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
if (dev->dev.parent)
strncpy(info->bus_info, dev->dev.parent->bus_id,
sizeof(info->bus_info) - 1);
else
snprintf(info->bus_info, sizeof(info->bus_info) - 1,
"PCMCIA %p", priv->hw.iobase);
}
static const struct ethtool_ops orinoco_ethtool_ops = {
.get_drvinfo = orinoco_get_drvinfo,
.get_link = ethtool_op_get_link,
};
/********************************************************************/
/* Module initialization */
/********************************************************************/
EXPORT_SYMBOL(alloc_orinocodev);
EXPORT_SYMBOL(free_orinocodev);
EXPORT_SYMBOL(__orinoco_up);
EXPORT_SYMBOL(__orinoco_down);
EXPORT_SYMBOL(orinoco_reinit_firmware);
EXPORT_SYMBOL(orinoco_interrupt);
/* Can't be declared "const" or the whole __initdata section will
* become const */
static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
" (David Gibson <hermes@gibson.dropbear.id.au>, "
"Pavel Roskin <proski@gnu.org>, et al)";
static int __init init_orinoco(void)
{
printk(KERN_DEBUG "%s\n", version);
return 0;
}
static void __exit exit_orinoco(void)
{
}
module_init(init_orinoco);
module_exit(exit_orinoco);
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