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linux/drivers/net/wireless/orinoco.c
Andrey Borzenkov 7045825993 orinoco: reduce stack usage in firmware download path 
orinoco_dl_firmware and symbol_dl_mage allocate large local
variables (1K); at least orinoco fails with panic or hung
kernel if 4K stacks is enabled.

Allocate large buffers dynamically at run time.

Tested-By: Andrey Borzenkov <arvidjaar@mail.ru> for Agere case

Signed-off-by: Andrey Borzenkov < arvidjaar@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-22 18:09:32 -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/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/firmware.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <net/ieee80211.h>
#include <linux/scatterlist.h>
#include <linux/crypto.h>
#include "hermes_rid.h"
#include "hermes_dld.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);
/********************************************************************/
/* Michael MIC crypto setup */
/********************************************************************/
#define MICHAEL_MIC_LEN 8
static int orinoco_mic_init(struct orinoco_private *priv)
{
priv->tx_tfm_mic = crypto_alloc_hash("michael_mic", 0, 0);
if (IS_ERR(priv->tx_tfm_mic)) {
printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
"crypto API michael_mic\n");
priv->tx_tfm_mic = NULL;
return -ENOMEM;
}
priv->rx_tfm_mic = crypto_alloc_hash("michael_mic", 0, 0);
if (IS_ERR(priv->rx_tfm_mic)) {
printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
"crypto API michael_mic\n");
priv->rx_tfm_mic = NULL;
return -ENOMEM;
}
return 0;
}
static void orinoco_mic_free(struct orinoco_private *priv)
{
if (priv->tx_tfm_mic)
crypto_free_hash(priv->tx_tfm_mic);
if (priv->rx_tfm_mic)
crypto_free_hash(priv->rx_tfm_mic);
}
static int michael_mic(struct crypto_hash *tfm_michael, u8 *key,
u8 *da, u8 *sa, u8 priority,
u8 *data, size_t data_len, u8 *mic)
{
struct hash_desc desc;
struct scatterlist sg[2];
u8 hdr[ETH_HLEN + 2]; /* size of header + padding */
if (tfm_michael == NULL) {
printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
return -1;
}
/* Copy header into buffer. We need the padding on the end zeroed */
memcpy(&hdr[0], da, ETH_ALEN);
memcpy(&hdr[ETH_ALEN], sa, ETH_ALEN);
hdr[ETH_ALEN*2] = priority;
hdr[ETH_ALEN*2+1] = 0;
hdr[ETH_ALEN*2+2] = 0;
hdr[ETH_ALEN*2+3] = 0;
/* Use scatter gather to MIC header and data in one go */
sg_init_table(sg, 2);
sg_set_buf(&sg[0], hdr, sizeof(hdr));
sg_set_buf(&sg[1], data, data_len);
if (crypto_hash_setkey(tfm_michael, key, MIC_KEYLEN))
return -1;
desc.tfm = tfm_michael;
desc.flags = 0;
return crypto_hash_digest(&desc, sg, data_len + sizeof(hdr),
mic);
}
/********************************************************************/
/* 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_xbss_data)
return 0;
if (priv->has_ext_scan)
priv->bss_xbss_data = kzalloc(ORINOCO_MAX_BSS_COUNT *
sizeof(struct xbss_element),
GFP_KERNEL);
else
priv->bss_xbss_data = kzalloc(ORINOCO_MAX_BSS_COUNT *
sizeof(struct bss_element),
GFP_KERNEL);
if (!priv->bss_xbss_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_xbss_data);
priv->bss_xbss_data = NULL;
}
#define PRIV_BSS ((struct bss_element *)priv->bss_xbss_data)
#define PRIV_XBSS ((struct xbss_element *)priv->bss_xbss_data)
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);
if (priv->has_ext_scan)
for (i = 0; i < ORINOCO_MAX_BSS_COUNT; i++)
list_add_tail(&(PRIV_XBSS[i].list),
&priv->bss_free_list);
else
for (i = 0; i < ORINOCO_MAX_BSS_COUNT; i++)
list_add_tail(&(PRIV_BSS[i].list),
&priv->bss_free_list);
}
static inline u8 *orinoco_get_ie(u8 *data, size_t len,
enum ieee80211_mfie eid)
{
u8 *p = data;
while ((p + 2) < (data + len)) {
if (p[0] == eid)
return p;
p += p[1] + 2;
}
return NULL;
}
#define WPA_OUI_TYPE "\x00\x50\xF2\x01"
#define WPA_SELECTOR_LEN 4
static inline u8 *orinoco_get_wpa_ie(u8 *data, size_t len)
{
u8 *p = data;
while ((p + 2 + WPA_SELECTOR_LEN) < (data + len)) {
if ((p[0] == MFIE_TYPE_GENERIC) &&
(memcmp(&p[2], WPA_OUI_TYPE, WPA_SELECTOR_LEN) == 0))
return p;
p += p[1] + 2;
}
return NULL;
}
/********************************************************************/
/* Download functionality */
/********************************************************************/
struct fw_info {
char *pri_fw;
char *sta_fw;
char *ap_fw;
u32 pda_addr;
u16 pda_size;
};
const static struct fw_info orinoco_fw[] = {
{ "", "agere_sta_fw.bin", "agere_ap_fw.bin", 0x00390000, 1000 },
{ "", "prism_sta_fw.bin", "prism_ap_fw.bin", 0, 1024 },
{ "symbol_sp24t_prim_fw", "symbol_sp24t_sec_fw", "", 0x00003100, 512 }
};
/* Structure used to access fields in FW
* Make sure LE decoding macros are used
*/
struct orinoco_fw_header {
char hdr_vers[6]; /* ASCII string for header version */
__le16 headersize; /* Total length of header */
__le32 entry_point; /* NIC entry point */
__le32 blocks; /* Number of blocks to program */
__le32 block_offset; /* Offset of block data from eof header */
__le32 pdr_offset; /* Offset to PDR data from eof header */
__le32 pri_offset; /* Offset to primary plug data */
__le32 compat_offset; /* Offset to compatibility data*/
char signature[0]; /* FW signature length headersize-20 */
} __attribute__ ((packed));
/* Download either STA or AP firmware into the card. */
static int
orinoco_dl_firmware(struct orinoco_private *priv,
const struct fw_info *fw,
int ap)
{
/* Plug Data Area (PDA) */
__le16 *pda;
hermes_t *hw = &priv->hw;
const struct firmware *fw_entry;
const struct orinoco_fw_header *hdr;
const unsigned char *first_block;
const unsigned char *end;
const char *firmware;
struct net_device *dev = priv->ndev;
int err = 0;
pda = kzalloc(fw->pda_size, GFP_KERNEL);
if (!pda)
return -ENOMEM;
if (ap)
firmware = fw->ap_fw;
else
firmware = fw->sta_fw;
printk(KERN_DEBUG "%s: Attempting to download firmware %s\n",
dev->name, firmware);
/* Read current plug data */
err = hermes_read_pda(hw, pda, fw->pda_addr, fw->pda_size, 0);
printk(KERN_DEBUG "%s: Read PDA returned %d\n", dev->name, err);
if (err)
goto free;
err = request_firmware(&fw_entry, firmware, priv->dev);
if (err) {
printk(KERN_ERR "%s: Cannot find firmware %s\n",
dev->name, firmware);
err = -ENOENT;
goto free;
}
hdr = (const struct orinoco_fw_header *) fw_entry->data;
/* Enable aux port to allow programming */
err = hermesi_program_init(hw, le32_to_cpu(hdr->entry_point));
printk(KERN_DEBUG "%s: Program init returned %d\n", dev->name, err);
if (err != 0)
goto abort;
/* Program data */
first_block = (fw_entry->data +
le16_to_cpu(hdr->headersize) +
le32_to_cpu(hdr->block_offset));
end = fw_entry->data + fw_entry->size;
err = hermes_program(hw, first_block, end);
printk(KERN_DEBUG "%s: Program returned %d\n", dev->name, err);
if (err != 0)
goto abort;
/* Update production data */
first_block = (fw_entry->data +
le16_to_cpu(hdr->headersize) +
le32_to_cpu(hdr->pdr_offset));
err = hermes_apply_pda_with_defaults(hw, first_block, pda);
printk(KERN_DEBUG "%s: Apply PDA returned %d\n", dev->name, err);
if (err)
goto abort;
/* Tell card we've finished */
err = hermesi_program_end(hw);
printk(KERN_DEBUG "%s: Program end returned %d\n", dev->name, err);
if (err != 0)
goto abort;
/* Check if we're running */
printk(KERN_DEBUG "%s: hermes_present returned %d\n",
dev->name, hermes_present(hw));
abort:
release_firmware(fw_entry);
free:
kfree(pda);
return err;
}
/* End markers */
#define TEXT_END 0x1A /* End of text header */
/*
* Process a firmware image - stop the card, load the firmware, reset
* the card and make sure it responds. For the secondary firmware take
* care of the PDA - read it and then write it on top of the firmware.
*/
static int
symbol_dl_image(struct orinoco_private *priv, const struct fw_info *fw,
const unsigned char *image, const unsigned char *end,
int secondary)
{
hermes_t *hw = &priv->hw;
int ret = 0;
const unsigned char *ptr;
const unsigned char *first_block;
/* Plug Data Area (PDA) */
__le16 *pda = NULL;
/* Binary block begins after the 0x1A marker */
ptr = image;
while (*ptr++ != TEXT_END);
first_block = ptr;
/* Read the PDA from EEPROM */
if (secondary) {
pda = kzalloc(fw->pda_size, GFP_KERNEL);
if (!pda)
return -ENOMEM;
ret = hermes_read_pda(hw, pda, fw->pda_addr, fw->pda_size, 1);
if (ret)
goto free;
}
/* Stop the firmware, so that it can be safely rewritten */
if (priv->stop_fw) {
ret = priv->stop_fw(priv, 1);
if (ret)
goto free;
}
/* Program the adapter with new firmware */
ret = hermes_program(hw, first_block, end);
if (ret)
goto free;
/* Write the PDA to the adapter */
if (secondary) {
size_t len = hermes_blocks_length(first_block);
ptr = first_block + len;
ret = hermes_apply_pda(hw, ptr, pda);
kfree(pda);
if (ret)
return ret;
}
/* Run the firmware */
if (priv->stop_fw) {
ret = priv->stop_fw(priv, 0);
if (ret)
return ret;
}
/* Reset hermes chip and make sure it responds */
ret = hermes_init(hw);
/* hermes_reset() should return 0 with the secondary firmware */
if (secondary && ret != 0)
return -ENODEV;
/* And this should work with any firmware */
if (!hermes_present(hw))
return -ENODEV;
return 0;
free:
kfree(pda);
return ret;
}
/*
* Download the firmware into the card, this also does a PCMCIA soft
* reset on the card, to make sure it's in a sane state.
*/
static int
symbol_dl_firmware(struct orinoco_private *priv,
const struct fw_info *fw)
{
struct net_device *dev = priv->ndev;
int ret;
const struct firmware *fw_entry;
if (request_firmware(&fw_entry, fw->pri_fw,
priv->dev) != 0) {
printk(KERN_ERR "%s: Cannot find firmware: %s\n",
dev->name, fw->pri_fw);
return -ENOENT;
}
/* Load primary firmware */
ret = symbol_dl_image(priv, fw, fw_entry->data,
fw_entry->data + fw_entry->size, 0);
release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR "%s: Primary firmware download failed\n",
dev->name);
return ret;
}
if (request_firmware(&fw_entry, fw->sta_fw,
priv->dev) != 0) {
printk(KERN_ERR "%s: Cannot find firmware: %s\n",
dev->name, fw->sta_fw);
return -ENOENT;
}
/* Load secondary firmware */
ret = symbol_dl_image(priv, fw, fw_entry->data,
fw_entry->data + fw_entry->size, 1);
release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR "%s: Secondary firmware download failed\n",
dev->name);
}
return ret;
}
static int orinoco_download(struct orinoco_private *priv)
{
int err = 0;
/* Reload firmware */
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
/* case FIRMWARE_TYPE_INTERSIL: */
err = orinoco_dl_firmware(priv,
&orinoco_fw[priv->firmware_type], 0);
break;
case FIRMWARE_TYPE_SYMBOL:
err = symbol_dl_firmware(priv,
&orinoco_fw[priv->firmware_type]);
break;
case FIRMWARE_TYPE_INTERSIL:
break;
}
/* TODO: if we fail we probably need to reinitialise
* the driver */
return err;
}
/********************************************************************/
/* 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 tx_control;
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;
tx_control = HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX;
if (priv->encode_alg == IW_ENCODE_ALG_TKIP)
tx_control |= (priv->tx_key << HERMES_MIC_KEY_ID_SHIFT) |
HERMES_TXCTRL_MIC;
if (priv->has_alt_txcntl) {
/* WPA enabled firmwares have tx_cntl at the end of
* the 802.11 header. So write zeroed descriptor and
* 802.11 header at the same time
*/
char desc[HERMES_802_3_OFFSET];
__le16 *txcntl = (__le16 *) &desc[HERMES_TXCNTL2_OFFSET];
memset(&desc, 0, sizeof(desc));
*txcntl = cpu_to_le16(tx_control);
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;
}
} else {
struct hermes_tx_descriptor desc;
memset(&desc, 0, sizeof(desc));
desc.tx_control = cpu_to_le16(tx_control);
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);
}
eh = (struct ethhdr *)skb->data;
/* 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);
/* 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));
/* Insert the SNAP header */
if (skb_headroom(skb) < sizeof(hdr)) {
printk(KERN_ERR
"%s: Not enough headroom for 802.2 headers %d\n",
dev->name, skb_headroom(skb));
goto drop;
}
eh = (struct ethhdr *) skb_push(skb, sizeof(hdr));
memcpy(eh, &hdr, sizeof(hdr));
}
err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
txfid, HERMES_802_3_OFFSET);
if (err) {
printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
dev->name, err);
goto busy;
}
/* Calculate Michael MIC */
if (priv->encode_alg == IW_ENCODE_ALG_TKIP) {
u8 mic_buf[MICHAEL_MIC_LEN + 1];
u8 *mic;
size_t offset;
size_t len;
if (skb->len % 2) {
/* MIC start is on an odd boundary */
mic_buf[0] = skb->data[skb->len - 1];
mic = &mic_buf[1];
offset = skb->len - 1;
len = MICHAEL_MIC_LEN + 1;
} else {
mic = &mic_buf[0];
offset = skb->len;
len = MICHAEL_MIC_LEN;
}
michael_mic(priv->tx_tfm_mic,
priv->tkip_key[priv->tx_key].tx_mic,
eh->h_dest, eh->h_source, 0 /* priority */,
skb->data + ETH_HLEN, skb->len - ETH_HLEN, mic);
/* Write the MIC */
err = hermes_bap_pwrite(hw, USER_BAP, &mic_buf[0], len,
txfid, HERMES_802_3_OFFSET + offset);
if (err) {
printk(KERN_ERR "%s: Error %d writing MIC 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 += HERMES_802_3_OFFSET + 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++;
}
/* Get tsc from the firmware */
static int orinoco_hw_get_tkip_iv(struct orinoco_private *priv, int key,
u8 *tsc)
{
hermes_t *hw = &priv->hw;
int err = 0;
u8 tsc_arr[4][IW_ENCODE_SEQ_MAX_SIZE];
if ((key < 0) || (key > 4))
return -EINVAL;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_TKIP_IV,
sizeof(tsc_arr), NULL, &tsc_arr);
if (!err)
memcpy(tsc, &tsc_arr[key][0], sizeof(tsc_arr[0]));
return err;
}
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;
int length;
struct hermes_rx_descriptor *desc;
struct orinoco_rx_data *rx_data;
int err;
desc = kmalloc(sizeof(*desc), GFP_ATOMIC);
if (!desc) {
printk(KERN_WARNING
"%s: Can't allocate space for RX descriptor\n",
dev->name);
goto update_stats;
}
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);
goto out;
}
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);
/* 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. */
goto out;
}
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;
}
/* Payload size does not include Michael MIC. Increase payload
* size to read it together with the data. */
if (status & HERMES_RXSTAT_MIC)
length += MICHAEL_MIC_LEN;
/* 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;
}
/* Add desc and skb to rx queue */
rx_data = kzalloc(sizeof(*rx_data), GFP_ATOMIC);
if (!rx_data) {
printk(KERN_WARNING "%s: Can't allocate RX packet\n",
dev->name);
goto drop;
}
rx_data->desc = desc;
rx_data->skb = skb;
list_add_tail(&rx_data->list, &priv->rx_list);
tasklet_schedule(&priv->rx_tasklet);
return;
drop:
dev_kfree_skb_irq(skb);
update_stats:
stats->rx_errors++;
stats->rx_dropped++;
out:
kfree(desc);
}
static void orinoco_rx(struct net_device *dev,
struct hermes_rx_descriptor *desc,
struct sk_buff *skb)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
u16 status, fc;
int length;
struct ethhdr *hdr;
status = le16_to_cpu(desc->status);
length = le16_to_cpu(desc->data_len);
fc = le16_to_cpu(desc->frame_ctl);
/* Calculate and check MIC */
if (status & HERMES_RXSTAT_MIC) {
int key_id = ((status & HERMES_RXSTAT_MIC_KEY_ID) >>
HERMES_MIC_KEY_ID_SHIFT);
u8 mic[MICHAEL_MIC_LEN];
u8 *rxmic;
u8 *src = (fc & IEEE80211_FCTL_FROMDS) ?
desc->addr3 : desc->addr2;
/* Extract Michael MIC from payload */
rxmic = skb->data + skb->len - MICHAEL_MIC_LEN;
skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
length -= MICHAEL_MIC_LEN;
michael_mic(priv->rx_tfm_mic,
priv->tkip_key[key_id].rx_mic,
desc->addr1,
src,
0, /* priority or QoS? */
skb->data,
skb->len,
&mic[0]);
if (memcmp(mic, rxmic,
MICHAEL_MIC_LEN)) {
union iwreq_data wrqu;
struct iw_michaelmicfailure wxmic;
DECLARE_MAC_BUF(mac);
printk(KERN_WARNING "%s: "
"Invalid Michael MIC in data frame from %s, "
"using key %i\n",
dev->name, print_mac(mac, src), key_id);
/* TODO: update stats */
/* Notify userspace */
memset(&wxmic, 0, sizeof(wxmic));
wxmic.flags = key_id & IW_MICFAILURE_KEY_ID;
wxmic.flags |= (desc->addr1[0] & 1) ?
IW_MICFAILURE_GROUP : IW_MICFAILURE_PAIRWISE;
wxmic.src_addr.sa_family = ARPHRD_ETHER;
memcpy(wxmic.src_addr.sa_data, src, ETH_ALEN);
(void) orinoco_hw_get_tkip_iv(priv, key_id,
&wxmic.tsc[0]);
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = sizeof(wxmic);
wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu,
(char *) &wxmic);
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(skb);
stats->rx_errors++;
stats->rx_dropped++;
}
static void orinoco_rx_isr_tasklet(unsigned long data)
{
struct net_device *dev = (struct net_device *) data;
struct orinoco_private *priv = netdev_priv(dev);
struct orinoco_rx_data *rx_data, *temp;
struct hermes_rx_descriptor *desc;
struct sk_buff *skb;
/* extract desc and skb from queue */
list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) {
desc = rx_data->desc;
skb = rx_data->skb;
list_del(&rx_data->list);
kfree(rx_data);
orinoco_rx(dev, desc, skb);
kfree(desc);
}
}
/********************************************************************/
/* 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_bssid_wevent(struct orinoco_private *priv)
{
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
union iwreq_data wrqu;
int err;
err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
if (err != 0)
return;
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
}
static void orinoco_send_assocreqie_wevent(struct orinoco_private *priv)
{
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
union iwreq_data wrqu;
int err;
u8 buf[88];
u8 *ie;
if (!priv->has_wpa)
return;
err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENT_ASSOC_REQ_INFO,
sizeof(buf), NULL, &buf);
if (err != 0)
return;
ie = orinoco_get_wpa_ie(buf, sizeof(buf));
if (ie) {
int rem = sizeof(buf) - (ie - &buf[0]);
wrqu.data.length = ie[1] + 2;
if (wrqu.data.length > rem)
wrqu.data.length = rem;
if (wrqu.data.length)
/* Send event to user space */
wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, ie);
}
}
static void orinoco_send_assocrespie_wevent(struct orinoco_private *priv)
{
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
union iwreq_data wrqu;
int err;
u8 buf[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */
u8 *ie;
if (!priv->has_wpa)
return;
err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENT_ASSOC_RESP_INFO,
sizeof(buf), NULL, &buf);
if (err != 0)
return;
ie = orinoco_get_wpa_ie(buf, sizeof(buf));
if (ie) {
int rem = sizeof(buf) - (ie - &buf[0]);
wrqu.data.length = ie[1] + 2;
if (wrqu.data.length > rem)
wrqu.data.length = rem;
if (wrqu.data.length)
/* Send event to user space */
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, ie);
}
}
static void orinoco_send_wevents(struct work_struct *work)
{
struct orinoco_private *priv =
container_of(work, struct orinoco_private, wevent_work);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return;
orinoco_send_assocreqie_wevent(priv);
orinoco_send_assocrespie_wevent(priv);
orinoco_send_bssid_wevent(priv);
orinoco_unlock(priv, &flags);
}
static inline void orinoco_clear_scan_results(struct orinoco_private *priv,
unsigned long scan_age)
{
if (priv->has_ext_scan) {
struct xbss_element *bss;
struct xbss_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->bss, 0, sizeof(bss->bss));
bss->last_scanned = 0;
}
}
} else {
struct bss_element *bss;
struct 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->bss, 0, sizeof(bss->bss));
bss->last_scanned = 0;
}
}
}
}
static void orinoco_add_ext_scan_result(struct orinoco_private *priv,
struct agere_ext_scan_info *atom)
{
struct xbss_element *bss = NULL;
int found = 0;
/* Try to update an existing bss first */
list_for_each_entry(bss, &priv->bss_list, list) {
if (compare_ether_addr(bss->bss.bssid, atom->bssid))
continue;
/* ESSID lengths */
if (bss->bss.data[1] != atom->data[1])
continue;
if (memcmp(&bss->bss.data[2], &atom->data[2],
atom->data[1]))
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,
struct xbss_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;
}
}
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;
struct 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,
struct 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_CHANNELINFO:
{
struct agere_ext_scan_info *bss;
if (!priv->scan_inprogress) {
printk(KERN_DEBUG "%s: Got chaninfo without scan, "
"len=%d\n", dev->name, len);
break;
}
/* An empty result indicates that the scan is complete */
if (len == 0) {
union iwreq_data wrqu;
/* Scan is no longer in progress */
priv->scan_inprogress = 0;
wrqu.data.length = 0;
wrqu.data.flags = 0;
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
break;
}
/* Sanity check */
else if (len > sizeof(*bss)) {
printk(KERN_WARNING
"%s: Ext scan results too large (%d bytes). "
"Truncating results to %zd bytes.\n",
dev->name, len, sizeof(*bss));
len = sizeof(*bss);
} else if (len < (offsetof(struct agere_ext_scan_info,
data) + 2)) {
/* Drop this result now so we don't have to
* keep checking later */
printk(KERN_WARNING
"%s: Ext scan results too short (%d bytes)\n",
dev->name, len);
break;
}
bss = kmalloc(sizeof(*bss), GFP_ATOMIC);
if (bss == NULL)
break;
/* Read scan data */
err = hermes_bap_pread(hw, IRQ_BAP, (void *) bss, len,
infofid, sizeof(info));
if (err) {
kfree(bss);
break;
}
orinoco_add_ext_scan_result(priv, bss);
kfree(bss);
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_enc() 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_enc(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
int master_wep_flag;
int auth_flag;
int enc_flag;
/* Setup WEP keys for WEP and WPA */
if (priv->encode_alg)
__orinoco_hw_setup_wepkeys(priv);
if (priv->wep_restrict)
auth_flag = HERMES_AUTH_SHARED_KEY;
else
auth_flag = HERMES_AUTH_OPEN;
if (priv->wpa_enabled)
enc_flag = 2;
else if (priv->encode_alg == IW_ENCODE_ALG_WEP)
enc_flag = 1;
else
enc_flag = 0;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
if (priv->encode_alg == IW_ENCODE_ALG_WEP) {
/* 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,
enc_flag);
if (err)
return err;
if (priv->has_wpa) {
/* Set WPA key management */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSETWPAAUTHMGMTSUITE_AGERE,
priv->key_mgmt);
if (err)
return err;
}
break;
case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
if (priv->encode_alg == IW_ENCODE_ALG_WEP) {
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;
}
/* key must be 32 bytes, including the tx and rx MIC keys.
* rsc must be 8 bytes
* tsc must be 8 bytes or NULL
*/
static int __orinoco_hw_set_tkip_key(hermes_t *hw, int key_idx, int set_tx,
u8 *key, u8 *rsc, u8 *tsc)
{
struct {
__le16 idx;
u8 rsc[IW_ENCODE_SEQ_MAX_SIZE];
u8 key[TKIP_KEYLEN];
u8 tx_mic[MIC_KEYLEN];
u8 rx_mic[MIC_KEYLEN];
u8 tsc[IW_ENCODE_SEQ_MAX_SIZE];
} __attribute__ ((packed)) buf;
int ret;
int err;
int k;
u16 xmitting;
key_idx &= 0x3;
if (set_tx)
key_idx |= 0x8000;
buf.idx = cpu_to_le16(key_idx);
memcpy(buf.key, key,
sizeof(buf.key) + sizeof(buf.tx_mic) + sizeof(buf.rx_mic));
if (rsc == NULL)
memset(buf.rsc, 0, sizeof(buf.rsc));
else
memcpy(buf.rsc, rsc, sizeof(buf.rsc));
if (tsc == NULL) {
memset(buf.tsc, 0, sizeof(buf.tsc));
buf.tsc[4] = 0x10;
} else {
memcpy(buf.tsc, tsc, sizeof(buf.tsc));
}
/* Wait upto 100ms for tx queue to empty */
k = 100;
do {
k--;
udelay(1000);
ret = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_TXQUEUEEMPTY,
&xmitting);
if (ret)
break;
} while ((k > 0) && xmitting);
if (k == 0)
ret = -ETIMEDOUT;
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFADDDEFAULTTKIPKEY_AGERE,
&buf);
return ret ? ret : err;
}
static int orinoco_clear_tkip_key(struct orinoco_private *priv,
int key_idx)
{
hermes_t *hw = &priv->hw;
int err;
memset(&priv->tkip_key[key_idx], 0, sizeof(priv->tkip_key[key_idx]));
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFREMDEFAULTTKIPKEY_AGERE,
key_idx);
if (err)
printk(KERN_WARNING "%s: Error %d clearing TKIP key %d\n",
priv->ndev->name, err, key_idx);
return err;
}
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 || priv->has_wpa) {
err = __orinoco_hw_setup_enc(priv);
if (err) {
printk(KERN_ERR "%s: Error %d activating encryption\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;
}
}
if (priv->do_fw_download) {
err = orinoco_download(priv);
if (err)
priv->do_fw_download = 0;
}
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;
priv->has_alt_txcntl = 0;
priv->has_ext_scan = 0;
priv->has_wpa = 0;
priv->do_fw_download = 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->do_fw_download = 1;
priv->broken_monitor = (firmver >= 0x80000);
priv->has_alt_txcntl = (firmver >= 0x90000); /* All 9.x ? */
priv->has_ext_scan = (firmver >= 0x90000); /* All 9.x ? */
priv->has_wpa = (firmver >= 0x9002a);
/* 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;
/* Symbol firmware is found on various cards, but
* there has been no attempt to check firmware
* download on non-spectrum_cs based cards.
*
* Given that the Agere firmware download works
* differently, we should avoid doing a firmware
* download with the Symbol algorithm on non-spectrum
* cards.
*
* For now we can identify a spectrum_cs based card
* because it has a firmware reset function.
*/
priv->do_fw_download = (priv->stop_fw != NULL);
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->do_fw_download) {
err = orinoco_download(priv);
if (err)
priv->do_fw_download = 0;
/* Check firmware version again */
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");
}
if (priv->has_wpa) {
printk(KERN_DEBUG "%s: WPA-PSK supported\n", dev->name);
if (orinoco_mic_init(priv)) {
printk(KERN_ERR "%s: Failed to setup MIC crypto "
"algorithm. Disabling WPA support\n", dev->name);
priv->has_wpa = 0;
}
}
/* Now we have the firmware capabilities, allocate appropiate
* sized scan buffers */
if (orinoco_bss_data_allocate(priv))
goto out;
orinoco_bss_data_init(priv);
/* 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->encode_alg = IW_ENCODE_ALG_NONE;
priv->tx_key = 0;
priv->wpa_enabled = 0;
priv->tkip_cm_active = 0;
priv->key_mgmt = 0;
priv->wpa_ie_len = 0;
priv->wpa_ie = NULL;
/* 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,
struct device *device,
int (*hard_reset)(struct orinoco_private *),
int (*stop_fw)(struct orinoco_private *, int))
{
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;
priv->dev = device;
/* 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 */
/* Reserve space in skb for the SNAP header */
dev->hard_header_len += ENCAPS_OVERHEAD;
/* Set up default callbacks */
dev->open = orinoco_open;
dev->stop = orinoco_stop;
priv->hard_reset = hard_reset;
priv->stop_fw = stop_fw;
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);
INIT_LIST_HEAD(&priv->rx_list);
tasklet_init(&priv->rx_tasklet, orinoco_rx_isr_tasklet,
(unsigned long) dev);
netif_carrier_off(dev);
priv->last_linkstatus = 0xffff;
return dev;
}
void free_orinocodev(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
/* No need to empty priv->rx_list: if the tasklet is scheduled
* when we call tasklet_kill it will run one final time,
* emptying the list */
tasklet_kill(&priv->rx_tasklet);
priv->wpa_ie_len = 0;
kfree(priv->wpa_ie);
orinoco_mic_free(priv);
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 = 22;
/* 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->has_wpa)
range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_CIPHER_TKIP;
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; /* ??? */
if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
range->scan_capa = IW_SCAN_CAPA_ESSID;
else
range->scan_capa = IW_SCAN_CAPA_NONE;
/* 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 encode_alg = priv->encode_alg;
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;
/* Clear any TKIP key we have */
if ((priv->has_wpa) && (priv->encode_alg == IW_ENCODE_ALG_TKIP))
(void) orinoco_clear_tkip_key(priv, setindex);
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 ((encode_alg != IW_ENCODE_ALG_WEP) && (xlen > 0)) {
setindex = index;
encode_alg = IW_ENCODE_ALG_WEP;
}
} 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)
encode_alg = IW_ENCODE_ALG_NONE;
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->encode_alg == encode_alg) &&
(priv->wep_restrict == restricted) &&
netif_carrier_ok(dev)) {
err = __orinoco_hw_setup_wepkeys(priv);
/* No need to commit if successful */
goto out;
}
priv->encode_alg = encode_alg;
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->encode_alg)
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_set_encodeext(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct iw_point *encoding = &wrqu->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int idx, alg = ext->alg, set_key = 1;
unsigned long flags;
int err = -EINVAL;
u16 key_len;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Determine and validate the key index */
idx = encoding->flags & IW_ENCODE_INDEX;
if (idx) {
if ((idx < 1) || (idx > WEP_KEYS))
goto out;
idx--;
} else
idx = priv->tx_key;
if (encoding->flags & IW_ENCODE_DISABLED)
alg = IW_ENCODE_ALG_NONE;
if (priv->has_wpa && (alg != IW_ENCODE_ALG_TKIP)) {
/* Clear any TKIP TX key we had */
(void) orinoco_clear_tkip_key(priv, priv->tx_key);
}
if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
priv->tx_key = idx;
set_key = ((alg == IW_ENCODE_ALG_TKIP) ||
(ext->key_len > 0)) ? 1 : 0;
}
if (set_key) {
/* Set the requested key first */
switch (alg) {
case IW_ENCODE_ALG_NONE:
priv->encode_alg = alg;
priv->keys[idx].len = 0;
break;
case IW_ENCODE_ALG_WEP:
if (ext->key_len > SMALL_KEY_SIZE)
key_len = LARGE_KEY_SIZE;
else if (ext->key_len > 0)
key_len = SMALL_KEY_SIZE;
else
goto out;
priv->encode_alg = alg;
priv->keys[idx].len = cpu_to_le16(key_len);
key_len = min(ext->key_len, key_len);
memset(priv->keys[idx].data, 0, ORINOCO_MAX_KEY_SIZE);
memcpy(priv->keys[idx].data, ext->key, key_len);
break;
case IW_ENCODE_ALG_TKIP:
{
hermes_t *hw = &priv->hw;
u8 *tkip_iv = NULL;
if (!priv->has_wpa ||
(ext->key_len > sizeof(priv->tkip_key[0])))
goto out;
priv->encode_alg = alg;
memset(&priv->tkip_key[idx], 0,
sizeof(priv->tkip_key[idx]));
memcpy(&priv->tkip_key[idx], ext->key, ext->key_len);
if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
tkip_iv = &ext->rx_seq[0];
err = __orinoco_hw_set_tkip_key(hw, idx,
ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
(u8 *) &priv->tkip_key[idx],
tkip_iv, NULL);
if (err)
printk(KERN_ERR "%s: Error %d setting TKIP key"
"\n", dev->name, err);
goto out;
}
default:
goto out;
}
}
err = -EINPROGRESS;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_get_encodeext(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct iw_point *encoding = &wrqu->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int idx, max_key_len;
unsigned long flags;
int err;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = -EINVAL;
max_key_len = encoding->length - sizeof(*ext);
if (max_key_len < 0)
goto out;
idx = encoding->flags & IW_ENCODE_INDEX;
if (idx) {
if ((idx < 1) || (idx > WEP_KEYS))
goto out;
idx--;
} else
idx = priv->tx_key;
encoding->flags = idx + 1;
memset(ext, 0, sizeof(*ext));
ext->alg = priv->encode_alg;
switch (priv->encode_alg) {
case IW_ENCODE_ALG_NONE:
ext->key_len = 0;
encoding->flags |= IW_ENCODE_DISABLED;
break;
case IW_ENCODE_ALG_WEP:
ext->key_len = min_t(u16, le16_to_cpu(priv->keys[idx].len),
max_key_len);
memcpy(ext->key, priv->keys[idx].data, ext->key_len);
encoding->flags |= IW_ENCODE_ENABLED;
break;
case IW_ENCODE_ALG_TKIP:
ext->key_len = min_t(u16, sizeof(struct orinoco_tkip_key),
max_key_len);
memcpy(ext->key, &priv->tkip_key[idx], ext->key_len);
encoding->flags |= IW_ENCODE_ENABLED;
break;
}
err = 0;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_set_auth(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
struct iw_param *param = &wrqu->param;
unsigned long flags;
int ret = -EINPROGRESS;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
case IW_AUTH_CIPHER_PAIRWISE:
case IW_AUTH_CIPHER_GROUP:
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
case IW_AUTH_PRIVACY_INVOKED:
case IW_AUTH_DROP_UNENCRYPTED:
/*
* orinoco does not use these parameters
*/
break;
case IW_AUTH_KEY_MGMT:
/* wl_lkm implies value 2 == PSK for Hermes I
* which ties in with WEXT
* no other hints tho :(
*/
priv->key_mgmt = param->value;
break;
case IW_AUTH_TKIP_COUNTERMEASURES:
/* When countermeasures are enabled, shut down the
* card; when disabled, re-enable the card. This must
* take effect immediately.
*
* TODO: Make sure that the EAPOL message is getting
* out before card disabled
*/
if (param->value) {
priv->tkip_cm_active = 1;
ret = hermes_enable_port(hw, 0);
} else {
priv->tkip_cm_active = 0;
ret = hermes_disable_port(hw, 0);
}
break;
case IW_AUTH_80211_AUTH_ALG:
if (param->value & IW_AUTH_ALG_SHARED_KEY)
priv->wep_restrict = 1;
else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM)
priv->wep_restrict = 0;
else
ret = -EINVAL;
break;
case IW_AUTH_WPA_ENABLED:
if (priv->has_wpa) {
priv->wpa_enabled = param->value ? 1 : 0;
} else {
if (param->value)
ret = -EOPNOTSUPP;
/* else silently accept disable of WPA */
priv->wpa_enabled = 0;
}
break;
default:
ret = -EOPNOTSUPP;
}
orinoco_unlock(priv, &flags);
return ret;
}
static int orinoco_ioctl_get_auth(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct iw_param *param = &wrqu->param;
unsigned long flags;
int ret = 0;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_KEY_MGMT:
param->value = priv->key_mgmt;
break;
case IW_AUTH_TKIP_COUNTERMEASURES:
param->value = priv->tkip_cm_active;
break;
case IW_AUTH_80211_AUTH_ALG:
if (priv->wep_restrict)
param->value = IW_AUTH_ALG_SHARED_KEY;
else
param->value = IW_AUTH_ALG_OPEN_SYSTEM;
break;
case IW_AUTH_WPA_ENABLED:
param->value = priv->wpa_enabled;
break;
default:
ret = -EOPNOTSUPP;
}
orinoco_unlock(priv, &flags);
return ret;
}
static int orinoco_ioctl_set_genie(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
u8 *buf;
unsigned long flags;
int err = 0;
if ((wrqu->data.length > MAX_WPA_IE_LEN) ||
(wrqu->data.length && (extra == NULL)))
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (wrqu->data.length) {
buf = kmalloc(wrqu->data.length, GFP_KERNEL);
if (buf == NULL) {
err = -ENOMEM;
goto out;
}
memcpy(buf, extra, wrqu->data.length);
kfree(priv->wpa_ie);
priv->wpa_ie = buf;
priv->wpa_ie_len = wrqu->data.length;
} else {
kfree(priv->wpa_ie);
priv->wpa_ie = NULL;
priv->wpa_ie_len = 0;
}
if (priv->wpa_ie) {
/* Looks like wl_lkm wants to check the auth alg, and
* somehow pass it to the firmware.
* Instead it just calls the key mgmt rid
* - we do this in set auth.
*/
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_get_genie(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
int err = 0;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if ((priv->wpa_ie_len == 0) || (priv->wpa_ie == NULL)) {
wrqu->data.length = 0;
goto out;
}
if (wrqu->data.length < priv->wpa_ie_len) {
err = -E2BIG;
goto out;
}
wrqu->data.length = priv->wpa_ie_len;
memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_set_mlme(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
struct iw_mlme *mlme = (struct iw_mlme *)extra;
unsigned long flags;
int ret = 0;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
/* silently ignore */
break;
case IW_MLME_DISASSOC:
{
struct {
u8 addr[ETH_ALEN];
__le16 reason_code;
} __attribute__ ((packed)) buf;
memcpy(buf.addr, mlme->addr.sa_data, ETH_ALEN);
buf.reason_code = cpu_to_le16(mlme->reason_code);
ret = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFDISASSOCIATE,
&buf);
break;
}
default:
ret = -EOPNOTSUPP;
}
orinoco_unlock(priv, &flags);
return ret;
}
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_point *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
struct iw_scan_req *si = (struct iw_scan_req *) extra;
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
* 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:
if (priv->scan_mode & IW_SCAN_THIS_ESSID) {
struct hermes_idstring idbuf;
size_t len = min(sizeof(idbuf.val),
(size_t) si->essid_len);
idbuf.len = cpu_to_le16(len);
memcpy(idbuf.val, si->essid, len);
err = hermes_write_ltv(hw, USER_BAP,
HERMES_RID_CNFSCANSSID_AGERE,
HERMES_BYTES_TO_RECLEN(len + 2),
&idbuf);
} else
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSCANSSID_AGERE,
0); /* Any ESSID */
if (err)
break;
if (priv->has_ext_scan) {
/* Clear scan results at the start of
* an extended scan */
orinoco_clear_scan_results(priv,
msecs_to_jiffies(15000));
/* TODO: Is this available on older firmware?
* Can we use it to scan specific channels
* for IW_SCAN_THIS_FREQ? */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSCANCHANNELS2GHZ,
0x7FFF);
if (err)
goto out;
err = hermes_inquire(hw,
HERMES_INQ_CHANNELINFO);
} else
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 */
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 custom[MAX_CUSTOM_LEN];
memset(&iwe, 0, sizeof(iwe));
/* 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 & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
if (capabilities & WLAN_CAPABILITY_ESS)
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 channel and frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = channel;
iwe.u.freq.e = 0;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_FREQ_LEN);
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. level and noise in dB. No link quality */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_DBM | IW_QUAL_QUAL_INVALID;
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 & WLAN_CAPABILITY_PRIVACY)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, NULL);
/* 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;
}
/* Beacon interval */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
"bcn_int=%d",
le16_to_cpu(bss->a.beacon_interv));
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Capabilites */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
"capab=0x%04x",
capabilities);
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Add EXTRA: Age to display seconds since last beacon/probe response
* for given network. */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
" Last beacon: %dms ago",
jiffies_to_msecs(jiffies - last_scanned));
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
return current_ev;
}
static inline char *orinoco_translate_ext_scan(struct net_device *dev,
struct iw_request_info *info,
char *current_ev,
char *end_buf,
struct agere_ext_scan_info *bss,
unsigned int last_scanned)
{
u16 capabilities;
u16 channel;
struct iw_event iwe; /* Temporary buffer */
char custom[MAX_CUSTOM_LEN];
u8 *ie;
memset(&iwe, 0, sizeof(iwe));
/* 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->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 */
ie = bss->data;
iwe.u.data.length = ie[1];
if (iwe.u.data.length) {
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, &ie[2]);
}
/* Add mode */
capabilities = le16_to_cpu(bss->capabilities);
if (capabilities & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
iwe.cmd = SIOCGIWMODE;
if (capabilities & WLAN_CAPABILITY_ESS)
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);
}
ie = orinoco_get_ie(bss->data, sizeof(bss->data), MFIE_TYPE_DS_SET);
channel = ie ? ie[2] : 0;
if ((channel >= 1) && (channel <= NUM_CHANNELS)) {
/* Add channel and frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = channel;
iwe.u.freq.e = 0;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
&iwe, IW_EV_FREQ_LEN);
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. level and noise in dB. No link quality */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_DBM | IW_QUAL_QUAL_INVALID;
iwe.u.qual.level = bss->level - 0x95;
iwe.u.qual.noise = bss->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 & WLAN_CAPABILITY_PRIVACY)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, NULL);
/* WPA IE */
ie = orinoco_get_wpa_ie(bss->data, sizeof(bss->data));
if (ie) {
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie[1] + 2;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, ie);
}
/* RSN IE */
ie = orinoco_get_ie(bss->data, sizeof(bss->data), MFIE_TYPE_RSN);
if (ie) {
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie[1] + 2;
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, ie);
}
ie = orinoco_get_ie(bss->data, sizeof(bss->data), MFIE_TYPE_RATES);
if (ie) {
char *p = current_ev + iwe_stream_lcp_len(info);
int i;
iwe.cmd = SIOCGIWRATE;
/* Those two flags are ignored... */
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
for (i = 2; i < (ie[1] + 2); i++) {
iwe.u.bitrate.value = ((ie[i] & 0x7F) * 500000);
p = iwe_stream_add_value(info, current_ev, p, end_buf,
&iwe, IW_EV_PARAM_LEN);
}
/* Check if we added any event */
if (p > (current_ev + iwe_stream_lcp_len(info)))
current_ev = p;
}
/* Timestamp */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length =
snprintf(custom, MAX_CUSTOM_LEN, "tsf=%016llx",
(unsigned long long) le64_to_cpu(bss->timestamp));
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Beacon interval */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
"bcn_int=%d",
le16_to_cpu(bss->beacon_interval));
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Capabilites */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
"capab=0x%04x",
capabilities);
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
/* Add EXTRA: Age to display seconds since last beacon/probe response
* for given network. */
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN,
" Last beacon: %dms ago",
jiffies_to_msecs(jiffies - last_scanned));
if (iwe.u.data.length)
current_ev = iwe_stream_add_point(info, current_ev, end_buf,
&iwe, custom);
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);
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;
}
if (priv->has_ext_scan) {
struct xbss_element *bss;
list_for_each_entry(bss, &priv->bss_list, list) {
/* Translate this entry to WE format */
current_ev =
orinoco_translate_ext_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;
}
}
} else {
struct bss_element *bss;
list_for_each_entry(bss, &priv->bss_list, list) {
/* Translate this entry to WE format */
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
*/
#define STD_IW_HANDLER(id, func) \
[IW_IOCTL_IDX(id)] = (iw_handler) func
static const iw_handler orinoco_handler[] = {
STD_IW_HANDLER(SIOCSIWCOMMIT, orinoco_ioctl_commit),
STD_IW_HANDLER(SIOCGIWNAME, orinoco_ioctl_getname),
STD_IW_HANDLER(SIOCSIWFREQ, orinoco_ioctl_setfreq),
STD_IW_HANDLER(SIOCGIWFREQ, orinoco_ioctl_getfreq),
STD_IW_HANDLER(SIOCSIWMODE, orinoco_ioctl_setmode),
STD_IW_HANDLER(SIOCGIWMODE, orinoco_ioctl_getmode),
STD_IW_HANDLER(SIOCSIWSENS, orinoco_ioctl_setsens),
STD_IW_HANDLER(SIOCGIWSENS, orinoco_ioctl_getsens),
STD_IW_HANDLER(SIOCGIWRANGE, orinoco_ioctl_getiwrange),
STD_IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
STD_IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
STD_IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
STD_IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
STD_IW_HANDLER(SIOCSIWAP, orinoco_ioctl_setwap),
STD_IW_HANDLER(SIOCGIWAP, orinoco_ioctl_getwap),
STD_IW_HANDLER(SIOCSIWSCAN, orinoco_ioctl_setscan),
STD_IW_HANDLER(SIOCGIWSCAN, orinoco_ioctl_getscan),
STD_IW_HANDLER(SIOCSIWESSID, orinoco_ioctl_setessid),
STD_IW_HANDLER(SIOCGIWESSID, orinoco_ioctl_getessid),
STD_IW_HANDLER(SIOCSIWNICKN, orinoco_ioctl_setnick),
STD_IW_HANDLER(SIOCGIWNICKN, orinoco_ioctl_getnick),
STD_IW_HANDLER(SIOCSIWRATE, orinoco_ioctl_setrate),
STD_IW_HANDLER(SIOCGIWRATE, orinoco_ioctl_getrate),
STD_IW_HANDLER(SIOCSIWRTS, orinoco_ioctl_setrts),
STD_IW_HANDLER(SIOCGIWRTS, orinoco_ioctl_getrts),
STD_IW_HANDLER(SIOCSIWFRAG, orinoco_ioctl_setfrag),
STD_IW_HANDLER(SIOCGIWFRAG, orinoco_ioctl_getfrag),
STD_IW_HANDLER(SIOCGIWRETRY, orinoco_ioctl_getretry),
STD_IW_HANDLER(SIOCSIWENCODE, orinoco_ioctl_setiwencode),
STD_IW_HANDLER(SIOCGIWENCODE, orinoco_ioctl_getiwencode),
STD_IW_HANDLER(SIOCSIWPOWER, orinoco_ioctl_setpower),
STD_IW_HANDLER(SIOCGIWPOWER, orinoco_ioctl_getpower),
STD_IW_HANDLER(SIOCSIWGENIE, orinoco_ioctl_set_genie),
STD_IW_HANDLER(SIOCGIWGENIE, orinoco_ioctl_get_genie),
STD_IW_HANDLER(SIOCSIWMLME, orinoco_ioctl_set_mlme),
STD_IW_HANDLER(SIOCSIWAUTH, orinoco_ioctl_set_auth),
STD_IW_HANDLER(SIOCGIWAUTH, orinoco_ioctl_get_auth),
STD_IW_HANDLER(SIOCSIWENCODEEXT, orinoco_ioctl_set_encodeext),
STD_IW_HANDLER(SIOCGIWENCODEEXT, orinoco_ioctl_get_encodeext),
};
/*
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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