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wavelan_cs.c：源码内容

/*
* Wavelan Pcmcia driver
*
* Jean II - HPLB '96
*
* Reorganisation and extension of the driver.
* Original copyright follow. See wavelan_cs.h for details.
*
* This code is derived from Anthony D. Joseph's code and all the changes here
* are also under the original copyright below.
*
* This code supports version 2.00 of WaveLAN/PCMCIA cards (2.4GHz), and
* can work on Linux 2.0.36 with support of David Hinds' PCMCIA Card Services
*
* Joe Finney (joe@comp.lancs.ac.uk) at Lancaster University in UK added
* critical code in the routine to initialize the Modem Management Controller.
*
* Thanks to Alan Cox and Bruce Janson for their advice.
*
* -- Yunzhou Li (scip4166@nus.sg)
*
#ifdef WAVELAN_ROAMING
* Roaming support added 07/22/98 by Justin Seger (jseger@media.mit.edu)
* based on patch by Joe Finney from Lancaster University.
#endif :-)
*
* Lucent (formerly AT&T GIS, formerly NCR) WaveLAN PCMCIA card: An
* Ethernet-like radio transceiver controlled by an Intel 82593 coprocessor.
*
* A non-shared memory PCMCIA ethernet driver for linux
*
* ISA version modified to support PCMCIA by Anthony Joseph (adj@lcs.mit.edu)
*
*
* Joseph O'Sullivan & John Langford (josullvn@cs.cmu.edu & jcl@cs.cmu.edu)
*
* Apr 2 '98 made changes to bring the i82593 control/int handling in line
* with offical specs...
*
* Changes:
* Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
* - reorganize kmallocs in wavelan_attach, checking all for failure
* and releasing the previous allocations if one fails
*
*
****************************************************************************
* Anthony D. Joseph
* Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this program
* for any purpose and without fee is hereby granted, provided
* that this copyright and permission notice appear on all copies
* and supporting documentation, the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* program without specific prior permission, and notice be given
* in supporting documentation that copying and distribution is
* by permission of M.I.T. M.I.T. makes no representations about
* the suitability of this software for any purpose. It is pro-
* vided "as is" without express or implied warranty.
****************************************************************************
*
*/
#include "wavelan_cs.h" /* Private header */
/************************* MISC SUBROUTINES **************************/
/*
* Subroutines which won't fit in one of the following category
* (wavelan modem or i82593)
*/
/*------------------------------------------------------------------*/
/*
* Wrapper for reporting error to cardservices
*/
static void cs_error(client_handle_t handle, int func, int ret)
{
error_info_t err = { func, ret };
CardServices(ReportError, handle, &err);
}
#ifdef STRUCT_CHECK
/*------------------------------------------------------------------*/
/*
* Sanity routine to verify the sizes of the various WaveLAN interface
* structures.
*/
static char *
wv_structuct_check(void)
{
#define SC(t,s,n) if (sizeof(t) != s) return(n);
SC(psa_t, PSA_SIZE, "psa_t");
SC(mmw_t, MMW_SIZE, "mmw_t");
SC(mmr_t, MMR_SIZE, "mmr_t");
#undef SC
return((char *) NULL);
} /* wv_structuct_check */
#endif /* STRUCT_CHECK */
/******************* MODEM MANAGEMENT SUBROUTINES *******************/
/*
* Usefull subroutines to manage the modem of the wavelan
*/
/*------------------------------------------------------------------*/
/*
* Read from card's Host Adaptor Status Register.
*/
static inline u_char
hasr_read(u_long base)
{
return(inb(HASR(base)));
} /* hasr_read */
/*------------------------------------------------------------------*/
/*
* Write to card's Host Adapter Command Register.
*/
static inline void
hacr_write(u_long base,
u_char hacr)
{
outb(hacr, HACR(base));
} /* hacr_write */
/*------------------------------------------------------------------*/
/*
* Write to card's Host Adapter Command Register. Include a delay for
* those times when it is needed.
*/
static inline void
hacr_write_slow(u_long base,
u_char hacr)
{
hacr_write(base, hacr);
/* delay might only be needed sometimes */
mdelay(1L);
} /* hacr_write_slow */
/*------------------------------------------------------------------*/
/*
* Read the Parameter Storage Area from the WaveLAN card's memory
*/
static void
psa_read(device * dev,
int o, /* offset in PSA */
u_char * b, /* buffer to fill */
int n) /* size to read */
{
u_char * ptr = ((u_char *)dev->mem_start) + PSA_ADDR + (o << 1);
while(n-- > 0)
{
*b++ = readb(ptr);
/* Due to a lack of address decode pins, the WaveLAN PCMCIA card
* only supports reading even memory addresses. That means the
* increment here MUST be two.
* Because of that, we can't use memcpy_fromio()...
*/
ptr += 2;
}
} /* psa_read */
/*------------------------------------------------------------------*/
/*
* Write the Paramter Storage Area to the WaveLAN card's memory
*/
static void
psa_write(device * dev,
int o, /* Offset in psa */
u_char * b, /* Buffer in memory */
int n) /* Length of buffer */
{
u_char * ptr = ((u_char *) dev->mem_start) + PSA_ADDR + (o << 1);
int count = 0;
ioaddr_t base = dev->base_addr;
/* As there seem to have no flag PSA_BUSY as in the ISA model, we are
* oblige to verify this address to know when the PSA is ready... */
volatile u_char * verify = ((u_char *) dev->mem_start) + PSA_ADDR +
(psaoff(0, psa_comp_number) << 1);
/* Authorize writting to PSA */
hacr_write(base, HACR_PWR_STAT | HACR_ROM_WEN);
while(n-- > 0)
{
/* write to PSA */
writeb(*b++, ptr);
ptr += 2;
/* I don't have the spec, so I don't know what the correct
* sequence to write is. This hack seem to work for me... */
count = 0;
while((readb(verify) != PSA_COMP_PCMCIA_915) && (count++ < 100))
mdelay(1);
}
/* Put the host interface back in standard state */
hacr_write(base, HACR_DEFAULT);
} /* psa_write */
#ifdef SET_PSA_CRC
/*------------------------------------------------------------------*/
/*
* Calculate the PSA CRC
* Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
* NOTE: By specifying a length including the CRC position the
* returned value should be zero. (i.e. a correct checksum in the PSA)
*
* The Windows drivers don't use the CRC, but the AP and the PtP tool
* depend on it.
*/
static u_short
psa_crc(unsigned char * psa, /* The PSA */
int size) /* Number of short for CRC */
{
int byte_cnt; /* Loop on the PSA */
u_short crc_bytes = 0; /* Data in the PSA */
int bit_cnt; /* Loop on the bits of the short */
for(byte_cnt = 0; byte_cnt < size; byte_cnt++ )
{
crc_bytes ^= psa[byte_cnt]; /* Its an xor */
for(bit_cnt = 1; bit_cnt < 9; bit_cnt++ )
{
if(crc_bytes & 0x0001)
crc_bytes = (crc_bytes >> 1) ^ 0xA001;
else
crc_bytes >>= 1 ;
}
}
return crc_bytes;
} /* psa_crc */
#endif /* SET_PSA_CRC */
/*------------------------------------------------------------------*/
/*
* update the checksum field in the Wavelan's PSA
*/
static void
update_psa_checksum(device * dev)
{
#ifdef SET_PSA_CRC
psa_t psa;
u_short crc;
/* read the parameter storage area */
psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
/* update the checksum */
crc = psa_crc((unsigned char *) &psa,
sizeof(psa) - sizeof(psa.psa_crc[0]) - sizeof(psa.psa_crc[1])
- sizeof(psa.psa_crc_status));
psa.psa_crc[0] = crc & 0xFF;
psa.psa_crc[1] = (crc & 0xFF00) >> 8;
/* Write it ! */
psa_write(dev, (char *)&psa.psa_crc - (char *)&psa,
(unsigned char *)&psa.psa_crc, 2);
#ifdef DEBUG_IOCTL_INFO
printk (KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02xn",
dev->name, psa.psa_crc[0], psa.psa_crc[1]);
/* Check again (luxury !) */
crc = psa_crc((unsigned char *) &psa,
sizeof(psa) - sizeof(psa.psa_crc_status));
if(crc != 0)
printk(KERN_WARNING "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)n", dev->name);
#endif /* DEBUG_IOCTL_INFO */
#endif /* SET_PSA_CRC */
} /* update_psa_checksum */
/*------------------------------------------------------------------*/
/*
* Write 1 byte to the MMC.
*/
static inline void
mmc_out(u_long base,
u_short o,
u_char d)
{
/* Wait for MMC to go idle */
while(inb(HASR(base)) & HASR_MMI_BUSY)
;
outb((u_char)((o << 1) | MMR_MMI_WR), MMR(base));
outb(d, MMD(base));
}
/*------------------------------------------------------------------*/
/*
* Routine to write bytes to the Modem Management Controller.
* We start by the end because it is the way it should be !
*/
static inline void
mmc_write(u_long base,
u_char o,
u_char * b,
int n)
{
o += n;
b += n;
while(n-- > 0 )
mmc_out(base, --o, *(--b));
} /* mmc_write */
/*------------------------------------------------------------------*/
/*
* Read 1 byte from the MMC.
* Optimised version for 1 byte, avoid using memory...
*/
static inline u_char
mmc_in(u_long base,
u_short o)
{
while(inb(HASR(base)) & HASR_MMI_BUSY)
;
outb(o << 1, MMR(base)); /* Set the read address */
outb(0, MMD(base)); /* Required dummy write */
while(inb(HASR(base)) & HASR_MMI_BUSY)
;
return (u_char) (inb(MMD(base))); /* Now do the actual read */
}
/*------------------------------------------------------------------*/
/*
* Routine to read bytes from the Modem Management Controller.
* The implementation is complicated by a lack of address lines,
* which prevents decoding of the low-order bit.
* (code has just been moved in the above function)
* We start by the end because it is the way it should be !
*/
static inline void
mmc_read(u_long base,
u_char o,
u_char * b,
int n)
{
o += n;
b += n;
while(n-- > 0)
*(--b) = mmc_in(base, --o);
} /* mmc_read */
/*------------------------------------------------------------------*/
/*
* Get the type of encryption available...
*/
static inline int
mmc_encr(u_long base) /* i/o port of the card */
{
int temp;
temp = mmc_in(base, mmroff(0, mmr_des_avail));
if((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
return 0;
else
return temp;
}
/*------------------------------------------------------------------*/
/*
* Wait for the frequency EEprom to complete a command...
* I hope this one will be optimally inlined...
*/
static inline void
fee_wait(u_long base, /* i/o port of the card */
int delay, /* Base delay to wait for */
int number) /* Number of time to wait */
{
int count = 0; /* Wait only a limited time */
while((count++ < number) &&
(mmc_in(base, mmroff(0, mmr_fee_status)) & MMR_FEE_STATUS_BUSY))
udelay(delay);
}
/*------------------------------------------------------------------*/
/*
* Read bytes from the Frequency EEprom (frequency select cards).
*/
static void
fee_read(u_long base, /* i/o port of the card */
u_short o, /* destination offset */
u_short * b, /* data buffer */
int n) /* number of registers */
{
b += n; /* Position at the end of the area */
/* Write the address */
mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1);
/* Loop on all buffer */
while(n-- > 0)
{
/* Write the read command */
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_READ);
/* Wait until EEprom is ready (should be quick !) */
fee_wait(base, 10, 100);
/* Read the value */
*--b = ((mmc_in(base, mmroff(0, mmr_fee_data_h)) << 8) |
mmc_in(base, mmroff(0, mmr_fee_data_l)));
}
}
#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
/*------------------------------------------------------------------*/
/*
* Write bytes from the Frequency EEprom (frequency select cards).
* This is a bit complicated, because the frequency eeprom has to
* be unprotected and the write enabled.
* Jean II
*/
static void
fee_write(u_long base, /* i/o port of the card */
u_short o, /* destination offset */
u_short * b, /* data buffer */
int n) /* number of registers */
{
b += n; /* Position at the end of the area */
#ifdef EEPROM_IS_PROTECTED /* disabled */
#ifdef DOESNT_SEEM_TO_WORK /* disabled */
/* Ask to read the protected register */
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
fee_wait(base, 10, 100);
/* Read the protected register */
printk("Protected 2 : %02X-%02Xn",
mmc_in(base, mmroff(0, mmr_fee_data_h)),
mmc_in(base, mmroff(0, mmr_fee_data_l)));
#endif /* DOESNT_SEEM_TO_WORK */
/* Enable protected register */
mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN);
fee_wait(base, 10, 100);
/* Unprotect area */
mmc_out(base, mmwoff(0, mmw_fee_addr), o + n);
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
#ifdef DOESNT_SEEM_TO_WORK /* disabled */
/* Or use : */
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR);
#endif /* DOESNT_SEEM_TO_WORK */
fee_wait(base, 10, 100);
#endif /* EEPROM_IS_PROTECTED */
/* Write enable */
mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN);
fee_wait(base, 10, 100);
/* Write the EEprom address */
mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1);
/* Loop on all buffer */
while(n-- > 0)
{
/* Write the value */
mmc_out(base, mmwoff(0, mmw_fee_data_h), (*--b) >> 8);
mmc_out(base, mmwoff(0, mmw_fee_data_l), *b & 0xFF);
/* Write the write command */
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WRITE);
/* Wavelan doc says : wait at least 10 ms for EEBUSY = 0 */
mdelay(10);
fee_wait(base, 10, 100);
}
/* Write disable */
mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS);
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS);
fee_wait(base, 10, 100);
#ifdef EEPROM_IS_PROTECTED /* disabled */
/* Reprotect EEprom */
mmc_out(base, mmwoff(0, mmw_fee_addr), 0x00);
mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
fee_wait(base, 10, 100);
#endif /* EEPROM_IS_PROTECTED */
}
#endif /* WIRELESS_EXT */
/******************* WaveLAN Roaming routines... ********************/
#ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */
unsigned char WAVELAN_BEACON_ADDRESS[]= {0x09,0x00,0x0e,0x20,0x03,0x00};
void wv_roam_init(struct net_device *dev)
{
net_local *lp= (net_local *)dev->priv;
/* Do not remove this unless you have a good reason */
printk(KERN_NOTICE "%s: Warning, you have enabled roaming on"
" device %s !n", dev->name, dev->name);
printk(KERN_NOTICE "Roaming is currently an experimental unsupported feature"
" of the Wavelan driver.n");
printk(KERN_NOTICE "It may work, but may also make the driver behave in"
" erratic ways or crash.n");
lp->wavepoint_table.head=NULL; /* Initialise WavePoint table */
lp->wavepoint_table.num_wavepoints=0;
lp->wavepoint_table.locked=0;
lp->curr_point=NULL; /* No default WavePoint */
lp->cell_search=0;
lp->cell_timer.data=(int)lp; /* Start cell expiry timer */
lp->cell_timer.function=wl_cell_expiry;
lp->cell_timer.expires=jiffies+CELL_TIMEOUT;
add_timer(&lp->cell_timer);
wv_nwid_filter(NWID_PROMISC,lp) ; /* Enter NWID promiscuous mode */
/* to build up a good WavePoint */
/* table... */
printk(KERN_DEBUG "WaveLAN: Roaming enabled on device %sn",dev->name);
}
void wv_roam_cleanup(struct net_device *dev)
{
wavepoint_history *ptr,*old_ptr;
net_local *lp= (net_local *)dev->priv;
printk(KERN_DEBUG "WaveLAN: Roaming Disabled on device %sn",dev->name);
/* Fixme : maybe we should check that the timer exist before deleting it */
del_timer(&lp->cell_timer); /* Remove cell expiry timer */
ptr=lp->wavepoint_table.head; /* Clear device's WavePoint table */
while(ptr!=NULL)
{
old_ptr=ptr;
ptr=ptr->next;
wl_del_wavepoint(old_ptr,lp);
}
}
/* Enable/Disable NWID promiscuous mode on a given device */
void wv_nwid_filter(unsigned char mode, net_local *lp)
{
mm_t m;
unsigned long flags;
#ifdef WAVELAN_ROAMING_DEBUG
printk(KERN_DEBUG "WaveLAN: NWID promisc %s, device %sn",(mode==NWID_PROMISC) ? "on" : "off", lp->dev->name);
#endif
/* Disable interrupts & save flags */
spin_lock_irqsave (&lp->lock, flags);
m.w.mmw_loopt_sel = (mode==NWID_PROMISC) ? MMW_LOOPT_SEL_DIS_NWID : 0x00;
mmc_write(lp->dev->base_addr, (char *)&m.w.mmw_loopt_sel - (char *)&m, (unsigned char *)&m.w.mmw_loopt_sel, 1);
/* ReEnable interrupts & restore flags */
spin_unlock_irqrestore (&lp->lock, flags);
if(mode==NWID_PROMISC)
lp->cell_search=1;
else
lp->cell_search=0;
}
/* Find a record in the WavePoint table matching a given NWID */
wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp)
{
wavepoint_history *ptr=lp->wavepoint_table.head;
while(ptr!=NULL){
if(ptr->nwid==nwid)
return ptr;
ptr=ptr->next;
}
return NULL;
}
/* Create a new wavepoint table entry */
wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp)
{
wavepoint_history *new_wavepoint;
#ifdef WAVELAN_ROAMING_DEBUG
printk(KERN_DEBUG "WaveLAN: New Wavepoint, NWID:%.4Xn",nwid);
#endif
if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS)
return NULL;
new_wavepoint=(wavepoint_history *) kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
if(new_wavepoint==NULL)
return NULL;
new_wavepoint->nwid=nwid; /* New WavePoints NWID */
new_wavepoint->average_fast=0; /* Running Averages..*/
new_wavepoint->average_slow=0;
new_wavepoint->qualptr=0; /* Start of ringbuffer */
new_wavepoint->last_seq=seq-1; /* Last sequence no.seen */
memset(new_wavepoint->sigqual,0,WAVEPOINT_HISTORY);/* Empty ringbuffer */
new_wavepoint->next=lp->wavepoint_table.head;/* Add to wavepoint table */
new_wavepoint->prev=NULL;
if(lp->wavepoint_table.head!=NULL)
lp->wavepoint_table.head->prev=new_wavepoint;
lp->wavepoint_table.head=new_wavepoint;
lp->wavepoint_table.num_wavepoints++; /* no. of visible wavepoints */
return new_wavepoint;
}
/* Remove a wavepoint entry from WavePoint table */
void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp)
{
if(wavepoint==NULL)
return;
if(lp->curr_point==wavepoint)
lp->curr_point=NULL;
if(wavepoint->prev!=NULL)
wavepoint->prev->next=wavepoint->next;
if(wavepoint->next!=NULL)
wavepoint->next->prev=wavepoint->prev;
if(lp->wavepoint_table.head==wavepoint)
lp->wavepoint_table.head=wavepoint->next;
lp->wavepoint_table.num_wavepoints--;
kfree(wavepoint);
}
/* Timer callback function - checks WavePoint table for stale entries */
void wl_cell_expiry(unsigned long data)
{
net_local *lp=(net_local *)data;
wavepoint_history *wavepoint=lp->wavepoint_table.head,*old_point;
#if WAVELAN_ROAMING_DEBUG > 1
printk(KERN_DEBUG "WaveLAN: Wavepoint timeout, dev %sn",lp->dev->name);
#endif
if(lp->wavepoint_table.locked)
{
#if WAVELAN_ROAMING_DEBUG > 1
printk(KERN_DEBUG "WaveLAN: Wavepoint table locked...n");
#endif
lp->cell_timer.expires=jiffies+1; /* If table in use, come back later */
add_timer(&lp->cell_timer);
return;
}
while(wavepoint!=NULL)
{
if(wavepoint->last_seen < jiffies-CELL_TIMEOUT)
{
#ifdef WAVELAN_ROAMING_DEBUG
printk(KERN_DEBUG "WaveLAN: Bye bye %.4Xn",wavepoint->nwid);
#endif
old_point=wavepoint;
wavepoint=wavepoint->next;
wl_del_wavepoint(old_point,lp);
}
else
wavepoint=wavepoint->next;
}
lp->cell_timer.expires=jiffies+CELL_TIMEOUT;
add_timer(&lp->cell_timer);
}
/* Update SNR history of a wavepoint */
void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq)
{
int i=0,num_missed=0,ptr=0;
int average_fast=0,average_slow=0;
num_missed=(seq-wavepoint->last_seq)%WAVEPOINT_HISTORY;/* Have we missed
any beacons? */
if(num_missed)
for(i=0;i<num_missed;i++)
{
wavepoint->sigqual[wavepoint->qualptr++]=0; /* If so, enter them as 0's */
wavepoint->qualptr %=WAVEPOINT_HISTORY; /* in the ringbuffer. */
}
wavepoint->last_seen=jiffies; /* Add beacon to history */
wavepoint->last_seq=seq;
wavepoint->sigqual[wavepoint->qualptr++]=sigqual;
wavepoint->qualptr %=WAVEPOINT_HISTORY;
ptr=(wavepoint->qualptr-WAVEPOINT_FAST_HISTORY+WAVEPOINT_HISTORY)%WAVEPOINT_HISTORY;
for(i=0;i<WAVEPOINT_FAST_HISTORY;i++) /* Update running averages */
{
average_fast+=wavepoint->sigqual[ptr++];
ptr %=WAVEPOINT_HISTORY;
}
average_slow=average_fast;
for(i=WAVEPOINT_FAST_HISTORY;i<WAVEPOINT_HISTORY;i++)
{
average_slow+=wavepoint->sigqual[ptr++];
ptr %=WAVEPOINT_HISTORY;
}
wavepoint->average_fast=average_fast/WAVEPOINT_FAST_HISTORY;
wavepoint->average_slow=average_slow/WAVEPOINT_HISTORY;
}
/* Perform a handover to a new WavePoint */
void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp)
{
ioaddr_t base = lp->dev->base_addr;
mm_t m;
unsigned long flags;
if(wavepoint==lp->curr_point) /* Sanity check... */
{
wv_nwid_filter(!NWID_PROMISC,lp);
return;
}
#ifdef WAVELAN_ROAMING_DEBUG
printk(KERN_DEBUG "WaveLAN: Doing handover to %.4X, dev %sn",wavepoint->nwid,lp->dev->name);
#endif
/* Disable interrupts & save flags */
spin_lock_irqsave(&lp->lock, flags);
m.w.mmw_netw_id_l = wavepoint->nwid & 0xFF;
m.w.mmw_netw_id_h = (wavepoint->nwid & 0xFF00) >> 8;
mmc_write(base, (char *)&m.w.mmw_netw_id_l - (char *)&m, (unsigned char *)&m.w.mmw_netw_id_l, 2);
/* ReEnable interrupts & restore flags */
spin_unlock_irqrestore (&lp->lock, flags);
wv_nwid_filter(!NWID_PROMISC,lp);
lp->curr_point=wavepoint;
}
/* Called when a WavePoint beacon is received */
static inline void wl_roam_gather(device * dev,
u_char * hdr, /* Beacon header */
u_char * stats) /* SNR, Signal quality
of packet */
{
wavepoint_beacon *beacon= (wavepoint_beacon *)hdr; /* Rcvd. Beacon */
unsigned short nwid=ntohs(beacon->nwid);
unsigned short sigqual=stats[2] & MMR_SGNL_QUAL; /* SNR of beacon */
wavepoint_history *wavepoint=NULL; /* WavePoint table entry */
net_local *lp=(net_local *)dev->priv; /* Device info */
#if WAVELAN_ROAMING_DEBUG > 1
printk(KERN_DEBUG "WaveLAN: beacon, dev %s:n",dev->name);
printk(KERN_DEBUG "Domain: %.4X NWID: %.4X SigQual=%dn",ntohs(beacon->domain_id),nwid,sigqual);
#endif
lp->wavepoint_table.locked=1; /* <Mutex> */
wavepoint=wl_roam_check(nwid,lp); /* Find WavePoint table entry */
if(wavepoint==NULL) /* If no entry, Create a new one... */
{
wavepoint=wl_new_wavepoint(nwid,beacon->seq,lp);
if(wavepoint==NULL)
goto out;
}
if(lp->curr_point==NULL) /* If this is the only WavePoint, */
wv_roam_handover(wavepoint, lp); /* Jump on it! */
wl_update_history(wavepoint, sigqual, beacon->seq); /* Update SNR history
stats. */
if(lp->curr_point->average_slow < SEARCH_THRESH_LOW) /* If our current */
if(!lp->cell_search) /* WavePoint is getting faint, */
wv_nwid_filter(NWID_PROMISC,lp); /* start looking for a new one */
if(wavepoint->average_slow >
lp->curr_point->average_slow + WAVELAN_ROAMING_DELTA)
wv_roam_handover(wavepoint, lp); /* Handover to a better WavePoint */
if(lp->curr_point->average_slow > SEARCH_THRESH_HIGH) /* If our SNR is */
if(lp->cell_search) /* getting better, drop out of cell search mode */
wv_nwid_filter(!NWID_PROMISC,lp);
out:
lp->wavepoint_table.locked=0; /* </MUTEX> :-) */
}
/* Test this MAC frame a WavePoint beacon */
static inline int WAVELAN_BEACON(unsigned char *data)
{
wavepoint_beacon *beacon= (wavepoint_beacon *)data;
static wavepoint_beacon beacon_template={0xaa,0xaa,0x03,0x08,0x00,0x0e,0x20,0x03,0x00};
if(memcmp(beacon,&beacon_template,9)==0)
return 1;
else
return 0;
}
#endif /* WAVELAN_ROAMING */
/************************ I82593 SUBROUTINES *************************/
/*
* Useful subroutines to manage the Ethernet controller
*/
/*------------------------------------------------------------------*/
/*
* Routine to synchronously send a command to the i82593 chip.
* Should be called with interrupts enabled.
*/
static int
wv_82593_cmd(device * dev,
char * str,
int cmd,
int result)
{
ioaddr_t base = dev->base_addr;
net_local * lp = (net_local *)dev->priv;
int status;
long spin;
u_long flags;
/* Spin until the chip finishes executing its current command (if any) */
do
{
spin_lock_irqsave (&lp->lock, flags);
outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
status = inb(LCSR(base));
spin_unlock_irqrestore (&lp->lock, flags);
}
while((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE);
/* We are waiting for command completion */
wv_wait_completed = TRUE;
/* Issue the command to the controller */
outb(cmd, LCCR(base));
/* If we don't have to check the result of the command */
if(result == SR0_NO_RESULT)
{
wv_wait_completed = FALSE;
return(TRUE);
}
/* Busy wait while the LAN controller executes the command.
* Note : wv_wait_completed should be volatile */
spin = 0;
while(wv_wait_completed && (spin++ < 1000))
udelay(10);
/* If the interrupt handler hasn't be called */
if(wv_wait_completed)
{
outb(OP0_NOP, LCCR(base));
status = inb(LCSR(base));
if(status & SR0_INTERRUPT)
{
/* There was an interrupt : call the interrupt handler */
#ifdef DEBUG_INTERRUPT_ERROR
printk(KERN_WARNING "wv_82593_cmd: interrupt handler not installed or interrupt disabledn");
#endif
wavelan_interrupt(dev->irq, (void *) dev,
(struct pt_regs *) NULL);
}
else
{
wv_wait_completed = 0; /* XXX */
#ifdef DEBUG_INTERRUPT_ERROR
printk(KERN_INFO "wv_82593_cmd: %s timeout, status0 0x%02xn",
str, status);
#endif
/* We probably should reset the controller here */
return(FALSE);
}
}
/* Check the return code provided by the interrupt handler against
* the expected return code provided by the caller */
if((lp->status & SR0_EVENT_MASK) != result)
{
#ifdef DEBUG_INTERRUPT_ERROR
printk(KERN_INFO "wv_82593_cmd: %s failed, status0 = 0x%xn",
str, lp->status);
#endif
return(FALSE);
}
return(TRUE);
} /* wv_82593_cmd */
/*------------------------------------------------------------------*/
/*
* This routine does a 593 op-code number 7, and obtains the diagnose
* status for the WaveLAN.
*/
static inline int
wv_diag(device * dev)
{
if(wv_82593_cmd(dev, "wv_diag(): diagnose",
OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED))
return(TRUE);
#ifdef DEBUG_CONFIG_ERROR
printk(KERN_INFO "wavelan_cs: i82593 Self Test failed!n");
#endif
return(FALSE);
} /* wv_diag */
/*------------------------------------------------------------------*/
/*
* Routine to read len bytes from the i82593's ring buffer, starting at
* chip address addr. The results read from the chip are stored in buf.
* The return value is the address to use for next the call.
*/
static int
read_ringbuf(device * dev,
int addr,
char * buf,
int len)
{
ioaddr_t base = dev->base_addr;
int ring_ptr = addr;
int chunk_len;
char * buf_ptr = buf;
#ifdef OLDIES
/* After having check skb_put (net/core/skbuff.c) in the kernel, it seem
* quite safe to remove this... */
/* If buf is NULL, just increment the ring buffer pointer */
if(buf == NULL)
return((ring_ptr - RX_BASE + len) % RX_SIZE + RX_BASE);
#endif
/* Get all the buffer */
while(len > 0)
{
/* Position the Program I/O Register at the ring buffer pointer */
outb(ring_ptr & 0xff, PIORL(base));
outb(((ring_ptr >> 8) & PIORH_MASK), PIORH(base));
/* First, determine how much we can read without wrapping around the
ring buffer */
if((addr + len) < (RX_BASE + RX_SIZE))
chunk_len = len;
else
chunk_len = RX_BASE + RX_SIZE - addr;
insb(PIOP(base), buf_ptr, chunk_len);
buf_ptr += chunk_len;
len -= chunk_len;
ring_ptr = (ring_ptr - RX_BASE + chunk_len) % RX_SIZE + RX_BASE;
}
return(ring_ptr);
} /* read_ringbuf */
/*------------------------------------------------------------------*/
/*
* Reconfigure the i82593, or at least ask for it...
* Because wv_82593_config use the transmission buffer, we must do it
* when we are sure that there is no transmission, so we do it now
* or in wavelan_packet_xmit() (I can't find any better place,
* wavelan_interrupt is not an option...), so you may experience
* some delay sometime...
*/
static inline void wv_82593_reconfig (device * dev)
{
net_local *lp = (net_local *) dev->priv;
dev_link_t *link = ((net_local *) dev->priv)->link;
/* Check if we can do it now ! */
if (!(link->open)) {
lp->reconfig_82593 = TRUE;
#ifdef DEBUG_IOCTL_INFO
printk (KERN_DEBUG "%s: wv_82593_reconfig(): delayed (link = %d)n",
dev->name, link->open);
#endif
} else {
netif_stop_queue (dev);
lp->reconfig_82593 = FALSE;
wv_82593_config (dev);
netif_wake_queue (dev);
}
}
#ifdef OLDIES
/*------------------------------------------------------------------*/
/*
* Dumps the current i82593 receive buffer to the console.
*/
static void wavelan_dump(device *dev)
{
ioaddr_t base = dev->base_addr;
int i, c;
/* disable receiver so we can use channel 1 */
outb(OP0_RCV_DISABLE, LCCR(base));
/* reset receive DMA pointer */
hacr_write_slow(base, HACR_PWR_STAT | HACR_RX_DMA_RESET);
hacr_write(base, HACR_DEFAULT);
/* dump into receive buffer */
wv_82593_cmd(dev, "wavelan_dump(): dump", CR0_CHNL|OP0_DUMP, SR0_DUMP_DONE);
/* set read pointer to start of receive buffer */
outb(0, PIORL(base));
outb(0, PIORH(base));
printk(KERN_DEBUG "wavelan_cs: dump:n");
printk(KERN_DEBUG " 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F");
for(i = 0; i < 73; i++){
if((i % 16) == 0) {
printk("n0x%02x:", i);
if (!i) {
printk(" ");
continue;
}
}
c = inb(PIOP(base));
printk("%02x ", c);
}
printk("n");
/* enable the receiver again */
wv_ru_start(dev);
}
#endif
/********************* DEBUG & INFO SUBROUTINES *********************/
/*
* This routines are used in the code to show debug informations.
* Most of the time, it dump the content of hardware structures...
*/
#ifdef DEBUG_PSA_SHOW
/*------------------------------------------------------------------*/
/*
* Print the formatted contents of the Parameter Storage Area.
*/
static void
wv_psa_show(psa_t * p)
{
printk(KERN_DEBUG "##### wavelan psa contents: #####n");
printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02Xn",
p->psa_io_base_addr_1,
p->psa_io_base_addr_2,
p->psa_io_base_addr_3,
p->psa_io_base_addr_4);
printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02Xn",
p->psa_rem_boot_addr_1,
p->psa_rem_boot_addr_2,
p->psa_rem_boot_addr_3);
printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
printk("psa_int_req_no: %dn", p->psa_int_req_no);
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "psa_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
p->psa_unused0[0],
p->psa_unused0[1],
p->psa_unused0[2],
p->psa_unused0[3],
p->psa_unused0[4],
p->psa_unused0[5],
p->psa_unused0[6]);
#endif /* DEBUG_SHOW_UNUSED */
printk(KERN_DEBUG "psa_univ_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02xn",
p->psa_univ_mac_addr[0],
p->psa_univ_mac_addr[1],
p->psa_univ_mac_addr[2],
p->psa_univ_mac_addr[3],
p->psa_univ_mac_addr[4],
p->psa_univ_mac_addr[5]);
printk(KERN_DEBUG "psa_local_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02xn",
p->psa_local_mac_addr[0],
p->psa_local_mac_addr[1],
p->psa_local_mac_addr[2],
p->psa_local_mac_addr[3],
p->psa_local_mac_addr[4],
p->psa_local_mac_addr[5]);
printk(KERN_DEBUG "psa_univ_local_sel: %d, ", p->psa_univ_local_sel);
printk("psa_comp_number: %d, ", p->psa_comp_number);
printk("psa_thr_pre_set: 0x%02xn", p->psa_thr_pre_set);
printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
p->psa_feature_select);
printk("psa_subband/decay_update_prm: %dn", p->psa_subband);
printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
printk("psa_mod_delay: 0x%02xn", p->psa_mod_delay);
printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], p->psa_nwid[1]);
printk("psa_nwid_select: %dn", p->psa_nwid_select);
printk(KERN_DEBUG "psa_encryption_select: %d, ", p->psa_encryption_select);
printk("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02xn",
p->psa_encryption_key[0],
p->psa_encryption_key[1],
p->psa_encryption_key[2],
p->psa_encryption_key[3],
p->psa_encryption_key[4],
p->psa_encryption_key[5],
p->psa_encryption_key[6],
p->psa_encryption_key[7]);
printk(KERN_DEBUG "psa_databus_width: %dn", p->psa_databus_width);
printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
p->psa_call_code[0]);
printk("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
p->psa_call_code[0],
p->psa_call_code[1],
p->psa_call_code[2],
p->psa_call_code[3],
p->psa_call_code[4],
p->psa_call_code[5],
p->psa_call_code[6],
p->psa_call_code[7]);
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "psa_reserved[]: %02X:%02X:%02X:%02Xn",
p->psa_reserved[0],
p->psa_reserved[1],
p->psa_reserved[2],
p->psa_reserved[3]);
#endif /* DEBUG_SHOW_UNUSED */
printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
printk("psa_crc_status: 0x%02xn", p->psa_crc_status);
} /* wv_psa_show */
#endif /* DEBUG_PSA_SHOW */
#ifdef DEBUG_MMC_SHOW
/*------------------------------------------------------------------*/
/*
* Print the formatted status of the Modem Management Controller.
* This function need to be completed...
*/
static void
wv_mmc_show(device * dev)
{
ioaddr_t base = dev->base_addr;
net_local * lp = (net_local *)dev->priv;
mmr_t m;
/* Basic check */
if(hasr_read(base) & HASR_NO_CLK)
{
printk(KERN_WARNING "%s: wv_mmc_show: modem not connectedn",
dev->name);
return;
}
/* Read the mmc */
mmc_out(base, mmwoff(0, mmw_freeze), 1);
mmc_read(base, 0, (u_char *)&m, sizeof(m));
mmc_out(base, mmwoff(0, mmw_freeze), 0);
#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
/* Don't forget to update statistics */
lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
#endif /* WIRELESS_EXT */
printk(KERN_DEBUG "##### wavelan modem status registers: #####n");
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
m.mmr_unused0[0],
m.mmr_unused0[1],
m.mmr_unused0[2],
m.mmr_unused0[3],
m.mmr_unused0[4],
m.mmr_unused0[5],
m.mmr_unused0[6],
m.mmr_unused0[7]);
#endif /* DEBUG_SHOW_UNUSED */
printk(KERN_DEBUG "Encryption algorythm: %02X - Status: %02Xn",
m.mmr_des_avail, m.mmr_des_status);
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02Xn",
m.mmr_unused1[0],
m.mmr_unused1[1],
m.mmr_unused1[2],
m.mmr_unused1[3],
m.mmr_unused1[4]);
#endif /* DEBUG_SHOW_UNUSED */
printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]n",
m.mmr_dce_status,
(m.mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? "energy detected,":"",
(m.mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
"loop test indicated," : "",
(m.mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? "transmitter on," : "",
(m.mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
"jabber timer expired," : "");
printk(KERN_DEBUG "Dsp ID: %02Xn",
m.mmr_dsp_id);
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "mmc_unused2[]: %02X:%02Xn",
m.mmr_unused2[0],
m.mmr_unused2[1]);
#endif /* DEBUG_SHOW_UNUSED */
printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %dn",
(m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
(m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]n",
m.mmr_thr_pre_set & MMR_THR_PRE_SET,
(m.mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : "below");
printk(KERN_DEBUG "signal_lvl: %d [%s], ",
m.mmr_signal_lvl & MMR_SIGNAL_LVL,
(m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : "no new msg");
printk("silence_lvl: %d [%s], ", m.mmr_silence_lvl & MMR_SILENCE_LVL,
(m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : "no new update");
printk("sgnl_qual: 0x%x [%s]n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
(m.mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : "Antenna 0");
#ifdef DEBUG_SHOW_UNUSED
printk(KERN_DEBUG "netw_id_l: %xn", m.mmr_netw_id_l);
#endif /* DEBUG_SHOW_UNUSED */
} /* wv_mmc_show */
#endif /* DEBUG_MMC_SHOW */
#ifdef DEBUG_I82593_SHOW
/*------------------------------------------------------------------*/
/*
* Print the formatted status of the i82593's receive unit.
*/
static void
wv_ru_show(device * dev)
{
net_local *lp = (net_local *) dev->priv;
printk(KERN_DEBUG "##### wavelan i82593 receiver status: #####n");
printk(KERN_DEBUG "ru: rfp %d stop %d", lp->rfp, lp->stop);
/*
* Not implemented yet...
*/
printk("n");
} /* wv_ru_show */
#endif /* DEBUG_I82593_SHOW */
#ifdef DEBUG_DEVICE_SHOW
/*------------------------------------------------------------------*/
/*
* Print the formatted status of the WaveLAN PCMCIA device driver.
*/
static void
wv_dev_show(device * dev)
{
printk(KERN_DEBUG "dev:");
printk(" trans_start=%ld,", dev->trans_start);
printk(" flags=0x%x,", dev->flags);
printk("n");
} /* wv_dev_show */
/*------------------------------------------------------------------*/
/*
* Print the formatted status of the WaveLAN PCMCIA device driver's
* private information.
*/
static void
wv_local_show(device * dev)
{
net_local *lp;
lp = (net_local *)dev->priv;
printk(KERN_DEBUG "local:");
/*
* Not implemented yet...
*/
printk("n");
} /* wv_local_show */
#endif /* DEBUG_DEVICE_SHOW */
#if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
/*------------------------------------------------------------------*/
/*
* Dump packet header (and content if necessary) on the screen
*/
static inline void
wv_packet_info(u_char * p, /* Packet to dump */
int length, /* Length of the packet */
char * msg1, /* Name of the device */
char * msg2) /* Name of the function */
{
int i;
int maxi;
printk(KERN_DEBUG "%s: %s(): dest %02X:%02X:%02X:%02X:%02X:%02X, length %dn",
msg1, msg2, p[0], p[1], p[2], p[3], p[4], p[5], length);
printk(KERN_DEBUG "%s: %s(): src %02X:%02X:%02X:%02X:%02X:%02X, type 0x%02X%02Xn",
msg1, msg2, p[6], p[7], p[8], p[9], p[10], p[11], p[12], p[13]);
#ifdef DEBUG_PACKET_DUMP
printk(KERN_DEBUG "data="");
if((maxi = length) > DEBUG_PACKET_DUMP)
maxi = DEBUG_PACKET_DUMP;
for(i = 14; i < maxi; i++)
if(p[i] >= ' ' && p[i] <= '~')
printk(" %c", p[i]);
else
printk("%02X", p[i]);
if(maxi < length)
printk("..");
printk(""n");
printk(KERN_DEBUG "n");
#endif /* DEBUG_PACKET_DUMP */
}
#endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
/*------------------------------------------------------------------*/
/*
* This is the information which is displayed by the driver at startup
* There is a lot of flag to configure it at your will...
*/
static inline void
wv_init_info(device * dev)
{
ioaddr_t base = dev->base_addr;
psa_t psa;
int i;
/* Read the parameter storage area */
psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
#ifdef DEBUG_PSA_SHOW
wv_psa_show(&psa);
#endif
#ifdef DEBUG_MMC_SHOW
wv_mmc_show(dev);
#endif
#ifdef DEBUG_I82593_SHOW
wv_ru_show(dev);
#endif
#ifdef DEBUG_BASIC_SHOW
/* Now, let's go for the basic stuff */
printk(KERN_NOTICE "%s: WaveLAN: port %#x, irq %d, hw_addr",
dev->name, base, dev->irq);
for(i = 0; i < WAVELAN_ADDR_SIZE; i++)
printk("%s%02X", (i == 0) ? " " : ":", dev->dev_addr[i]);
/* Print current network id */
if(psa.psa_nwid_select)
printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], psa.psa_nwid[1]);
else
printk(", nwid off");
/* If 2.00 card */
if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
(MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
{
unsigned short freq;
/* Ask the EEprom to read the frequency from the first area */
fee_read(base, 0x00 /* 1st area - frequency... */,
&freq, 1);
/* Print frequency */
printk(", 2.00, %ld", (freq >> 6) + 2400L);
/* Hack !!! */
if(freq & 0x20)
printk(".5");
}
else
{
printk(", PCMCIA, ");
switch (psa.psa_subband)
{
case PSA_SUBBAND_915:
printk("915");
break;
case PSA_SUBBAND_2425:
printk("2425");
break;
case PSA_SUBBAND_2460:
printk("2460");
break;
case PSA_SUBBAND_2484:
printk("2484");
break;
case PSA_SUBBAND_2430_5:
printk("2430.5");
break;
default:
printk("unknown");
}
}
printk(" MHzn");
#endif /* DEBUG_BASIC_SHOW */
#ifdef DEBUG_VERSION_SHOW
/* Print version information */
printk(KERN_NOTICE "%s", version);
#endif
} /* wv_init_info */
/********************* IOCTL, STATS & RECONFIG *********************/
/*
* We found here routines that are called by Linux on differents
* occasions after the configuration and not for transmitting data
* These may be called when the user use ifconfig, /proc/net/dev
* or wireless extensions
*/
/*------------------------------------------------------------------*/
/*
* Get the current ethernet statistics. This may be called with the
* card open or closed.
* Used when the user read /proc/net/dev
*/
static en_stats *
wavelan_get_stats(device * dev)
{
#ifdef DEBUG_IOCTL_TRACE
printk(KERN_DEBUG "%s: <>wavelan_get_stats()n", dev->name);
#endif
return(&((net_local *) dev->priv)->stats);
}
/*------------------------------------------------------------------*/
/*
* Set or clear the multicast filter for this adaptor.
* num_addrs == -1 Promiscuous mode, receive all packets
* num_addrs == 0 Normal mode, clear multicast list
* num_addrs > 0 Multicast mode, receive normal and MC packets,
* and do best-effort filtering.
*/
static void
wavelan_set_multicast_list(device * dev)
{
net_local * lp = (net_local *) dev->priv;
#ifdef DEBUG_IOCTL_TRACE
printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()n", dev->name);
#endif
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.n",
dev->name, dev->flags, dev->mc_count);
#endif
if(dev->flags & IFF_PROMISC)
{
/*
* Enable promiscuous mode: receive all packets.
*/
if(!lp->promiscuous)
{
lp->promiscuous = 1;
lp->allmulticast = 0;
lp->mc_count = 0;
wv_82593_reconfig(dev);
/* Tell the kernel that we are doing a really bad job... */
dev->flags |= IFF_PROMISC;
}
}
else
/* If all multicast addresses
* or too much multicast addresses for the hardware filter */
if((dev->flags & IFF_ALLMULTI) ||
(dev->mc_count > I82593_MAX_MULTICAST_ADDRESSES))
{
/*
* Disable promiscuous mode, but active the all multicast mode
*/
if(!lp->allmulticast)
{
lp->promiscuous = 0;
lp->allmulticast = 1;
lp->mc_count = 0;
wv_82593_reconfig(dev);
/* Tell the kernel that we are doing a really bad job... */
dev->flags |= IFF_ALLMULTI;
}
}
else
/* If there is some multicast addresses to send */
if(dev->mc_list != (struct dev_mc_list *) NULL)
{
/*
* Disable promiscuous mode, but receive all packets
* in multicast list
*/
#ifdef MULTICAST_AVOID
if(lp->promiscuous || lp->allmulticast ||
(dev->mc_count != lp->mc_count))
#endif
{
lp->promiscuous = 0;
lp->allmulticast = 0;
lp->mc_count = dev->mc_count;
wv_82593_reconfig(dev);
}
}
else
{
/*
* Switch to normal mode: disable promiscuous mode and
* clear the multicast list.
*/
if(lp->promiscuous || lp->mc_count == 0)
{
lp->promiscuous = 0;
lp->allmulticast = 0;
lp->mc_count = 0;
wv_82593_reconfig(dev);
}
}
#ifdef DEBUG_IOCTL_TRACE
printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()n", dev->name);
#endif
}
/*------------------------------------------------------------------*/
/*
* This function doesn't exist...
* (Note : it was a nice way to test the reconfigure stuff...)
*/
#ifdef SET_MAC_ADDRESS
static int
wavelan_set_mac_address(device * dev,
void * addr)
{
struct sockaddr * mac = addr;
/* Copy the address */
memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
/* Reconfig the beast */
wv_82593_reconfig(dev);
return 0;
}
#endif /* SET_MAC_ADDRESS */
#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
/*------------------------------------------------------------------*/
/*
* Frequency setting (for hardware able of it)
* It's a bit complicated and you don't really want to look into it...
* (called in wavelan_ioctl)
*/
static inline int
wv_set_frequency(u_long base, /* i/o port of the card */
iw_freq * frequency)
{
const int BAND_NUM = 10; /* Number of bands */
long freq = 0L; /* offset to 2.4 GHz in .5 MHz */
#ifdef DEBUG_IOCTL_INFO
int i;
#endif
/* Setting by frequency */
/* Theoritically, you may set any frequency between
* the two limits with a 0.5 MHz precision. In practice,
* I don't want you to have trouble with local
* regulations... */
if((frequency->e == 1) &&
(frequency->m >= (int) 2.412e8) && (frequency->m <= (int) 2.487e8))
{
freq = ((frequency->m / 10000) - 24000L) / 5;
}
/* Setting by channel (same as wfreqsel) */
/* Warning : each channel is 22MHz wide, so some of the channels
* will interfere... */
if((frequency->e == 0) &&
(frequency->m >= 0) && (frequency->m < BAND_NUM))
{
/* Get frequency offset. */
freq = channel_bands[frequency->m] >> 1;
}
/* Verify if the frequency is allowed */
if(freq != 0L)
{
u_short table[10]; /* Authorized frequency table */
/* Read the frequency table */
fee_read(base, 0x71 /* frequency table */,
table, 10);
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "Frequency table :");
for(i = 0; i < 10; i++)
{
printk(" %04X",
table[i]);
}
printk("n");
#endif
/* Look in the table if the frequency is allowed */
if(!(table[9 - ((freq - 24) / 16)] &
(1 << ((freq - 24) % 16))))
return -EINVAL; /* not allowed */
}
else
return -EINVAL;
/* If we get a usable frequency */
if(freq != 0L)
{
unsigned short area[16];
unsigned short dac[2];
unsigned short area_verify[16];
unsigned short dac_verify[2];
/* Corresponding gain (in the power adjust value table)
* see AT&T Wavelan Data Manual, REF 407-024689/E, page 3-8
* & WCIN062D.DOC, page 6.2.9 */
unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
int power_band = 0; /* Selected band */
unsigned short power_adjust; /* Correct value */
/* Search for the gain */
power_band = 0;
while((freq > power_limit[power_band]) &&
(power_limit[++power_band] != 0))
;
/* Read the first area */
fee_read(base, 0x00,
area, 16);
/* Read the DAC */
fee_read(base, 0x60,
dac, 2);
/* Read the new power adjust value */
fee_read(base, 0x6B - (power_band >> 1),
&power_adjust, 1);
if(power_band & 0x1)
power_adjust >>= 8;
else
power_adjust &= 0xFF;
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
for(i = 0; i < 16; i++)
{
printk(" %04X",
area[i]);
}
printk("n");
printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04Xn",
dac[0], dac[1]);
#endif
/* Frequency offset (for info only...) */
area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
/* Receiver Principle main divider coefficient */
area[3] = (freq >> 1) + 2400L - 352L;
area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
/* Transmitter Main divider coefficient */
area[13] = (freq >> 1) + 2400L;
area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
/* Others part of the area are flags, bit streams or unused... */
/* Set the value in the DAC */
dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
/* Write the first area */
fee_write(base, 0x00,
area, 16);
/* Write the DAC */
fee_write(base, 0x60,
dac, 2);
/* We now should verify here that the EEprom writting was ok */
/* ReRead the first area */
fee_read(base, 0x00,
area_verify, 16);
/* ReRead the DAC */
fee_read(base, 0x60,
dac_verify, 2);
/* Compare */
if(memcmp(area, area_verify, 16 * 2) ||
memcmp(dac, dac_verify, 2 * 2))
{
#ifdef DEBUG_IOCTL_ERROR
printk(KERN_INFO "Wavelan: wv_set_frequency : unable to write new frequency to EEprom (?)n");
#endif
return -EOPNOTSUPP;
}
/* We must download the frequency parameters to the
* synthetisers (from the EEprom - area 1)
* Note : as the EEprom is auto decremented, we set the end
* if the area... */
mmc_out(base, mmwoff(0, mmw_fee_addr), 0x0F);
mmc_out(base, mmwoff(0, mmw_fee_ctrl),
MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
/* Wait until the download is finished */
fee_wait(base, 100, 100);
/* We must now download the power adjust value (gain) to
* the synthetisers (from the EEprom - area 7 - DAC) */
mmc_out(base, mmwoff(0, mmw_fee_addr), 0x61);
mmc_out(base, mmwoff(0, mmw_fee_ctrl),
MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
/* Wait until the download is finished */
fee_wait(base, 100, 100);
#ifdef DEBUG_IOCTL_INFO
/* Verification of what we have done... */
printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
for(i = 0; i < 16; i++)
{
printk(" %04X",
area_verify[i]);
}
printk("n");
printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04Xn",
dac_verify[0], dac_verify[1]);
#endif
return 0;
}
else
return -EINVAL; /* Bah, never get there... */
}
/*------------------------------------------------------------------*/
/*
* Give the list of available frequencies
*/
static inline int
wv_frequency_list(u_long base, /* i/o port of the card */
iw_freq * list, /* List of frequency to fill */
int max) /* Maximum number of frequencies */
{
u_short table[10]; /* Authorized frequency table */
long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */
int i; /* index in the table */
#if WIRELESS_EXT > 7
const int BAND_NUM = 10; /* Number of bands */
int c = 0; /* Channel number */
#endif /* WIRELESS_EXT */
/* Read the frequency table */
fee_read(base, 0x71 /* frequency table */,
table, 10);
/* Look all frequencies */
i = 0;
for(freq = 0; freq < 150; freq++)
/* Look in the table if the frequency is allowed */
if(table[9 - (freq / 16)] & (1 << (freq % 16)))
{
#if WIRELESS_EXT > 7
/* Compute approximate channel number */
while((((channel_bands[c] >> 1) - 24) < freq) &&
(c < BAND_NUM))
c++;
list[i].i = c; /* Set the list index */
#endif /* WIRELESS_EXT */
/* put in the list */
list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
list[i++].e = 1;
/* Check number */
if(i >= max)
return(i);
}
return(i);
}
#ifdef WIRELESS_SPY
/*------------------------------------------------------------------*/
/*
* Gather wireless spy statistics : for each packet, compare the source
* address with out list, and if match, get the stats...
* Sorry, but this function really need wireless extensions...
*/
static inline void
wl_spy_gather(device * dev,
u_char * mac, /* MAC address */
u_char * stats) /* Statistics to gather */
{
net_local * lp = (net_local *) dev->priv;
int i;
/* Look all addresses */
for(i = 0; i < lp->spy_number; i++)
/* If match */
if(!memcmp(mac, lp->spy_address[i], WAVELAN_ADDR_SIZE))
{
/* Update statistics */
lp->spy_stat[i].qual = stats[2] & MMR_SGNL_QUAL;
lp->spy_stat[i].level = stats[0] & MMR_SIGNAL_LVL;
lp->spy_stat[i].noise = stats[1] & MMR_SILENCE_LVL;
lp->spy_stat[i].updated = 0x7;
}
}
#endif /* WIRELESS_SPY */
#ifdef HISTOGRAM
/*------------------------------------------------------------------*/
/*
* This function calculate an histogram on the signal level.
* As the noise is quite constant, it's like doing it on the SNR.
* We have defined a set of interval (lp->his_range), and each time
* the level goes in that interval, we increment the count (lp->his_sum).
* With this histogram you may detect if one wavelan is really weak,
* or you may also calculate the mean and standard deviation of the level...
*/
static inline void
wl_his_gather(device * dev,
u_char * stats) /* Statistics to gather */
{
net_local * lp = (net_local *) dev->priv;
u_char level = stats[0] & MMR_SIGNAL_LVL;
int i;
/* Find the correct interval */
i = 0;
while((i < (lp->his_number - 1)) && (level >= lp->his_range[i++]))
;
/* Increment interval counter */
(lp->his_sum[i])++;
}
#endif /* HISTOGRAM */
/*------------------------------------------------------------------*/
/*
* Perform ioctl : config & info stuff
* This is here that are treated the wireless extensions (iwconfig)
*/
static int
wavelan_ioctl(struct net_device * dev, /* Device on wich the ioctl apply */
struct ifreq * rq, /* Data passed */
int cmd) /* Ioctl number */
{
ioaddr_t base = dev->base_addr;
net_local * lp = (net_local *)dev->priv; /* lp is not unused */
struct iwreq * wrq = (struct iwreq *) rq;
psa_t psa;
mm_t m;
unsigned long flags;
int ret = 0;
#ifdef DEBUG_IOCTL_TRACE
printk(KERN_DEBUG "%s: ->wavelan_ioctl(cmd=0x%X)n", dev->name, cmd);
#endif
/* Disable interrupts & save flags */
spin_lock_irqsave (&lp->lock, flags);
/* Look what is the request */
switch(cmd)
{
/* --------------- WIRELESS EXTENSIONS --------------- */
case SIOCGIWNAME:
strcpy(wrq->u.name, "Wavelan");
break;
case SIOCSIWNWID:
/* Set NWID in wavelan */
#if WIRELESS_EXT > 8
if(!wrq->u.nwid.disabled)
{
/* Set NWID in psa */
psa.psa_nwid[0] = (wrq->u.nwid.value & 0xFF00) >> 8;
psa.psa_nwid[1] = wrq->u.nwid.value & 0xFF;
#else /* WIRELESS_EXT > 8 */
if(wrq->u.nwid.on)
{
/* Set NWID in psa */
psa.psa_nwid[0] = (wrq->u.nwid.nwid & 0xFF00) >> 8;
psa.psa_nwid[1] = wrq->u.nwid.nwid & 0xFF;
#endif /* WIRELESS_EXT > 8 */
psa.psa_nwid_select = 0x01;
psa_write(dev, (char *)psa.psa_nwid - (char *)&psa,
(unsigned char *)psa.psa_nwid, 3);
/* Set NWID in mmc */
m.w.mmw_netw_id_l = psa.psa_nwid[1];
m.w.mmw_netw_id_h = psa.psa_nwid[0];
mmc_write(base, (char *)&m.w.mmw_netw_id_l - (char *)&m,
(unsigned char *)&m.w.mmw_netw_id_l, 2);
mmc_out(base, mmwoff(0, mmw_loopt_sel), 0x00);
}
else
{
/* Disable nwid in the psa */
psa.psa_nwid_select = 0x00;
psa_write(dev, (char *)&psa.psa_nwid_select - (char *)&psa,
(unsigned char *)&psa.psa_nwid_select, 1);
/* Disable nwid in the mmc (no filtering) */
mmc_out(base, mmwoff(0, mmw_loopt_sel), MMW_LOOPT_SEL_DIS_NWID);
}
/* update the Wavelan checksum */
update_psa_checksum(dev);
break;
case SIOCGIWNWID:
/* Read the NWID */
psa_read(dev, (char *)psa.psa_nwid - (char *)&psa,
(unsigned char *)psa.psa_nwid, 3);
#if WIRELESS_EXT > 8
wrq->u.nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
wrq->u.nwid.disabled = !(psa.psa_nwid_select);
wrq->u.nwid.fixed = 1; /* Superfluous */
#else /* WIRELESS_EXT > 8 */
wrq->u.nwid.nwid = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
wrq->u.nwid.on = psa.psa_nwid_select;
#endif /* WIRELESS_EXT > 8 */
break;
case SIOCSIWFREQ:
/* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) */
if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
(MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
ret = wv_set_frequency(base, &(wrq->u.freq));
else
ret = -EOPNOTSUPP;
break;
case SIOCGIWFREQ:
/* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
* (does it work for everybody XXX - especially old cards...) */
if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
(MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
{
unsigned short freq;
/* Ask the EEprom to read the frequency from the first area */
fee_read(base, 0x00 /* 1st area - frequency... */,
&freq, 1);
wrq->u.freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
wrq->u.freq.e = 1;
}
else
{
psa_read(dev, (char *)&psa.psa_subband - (char *)&psa,
(unsigned char *)&psa.psa_subband, 1);
if(psa.psa_subband <= 4)
{
wrq->u.freq.m = fixed_bands[psa.psa_subband];
wrq->u.freq.e = (psa.psa_subband != 0);
}
else
ret = -EOPNOTSUPP;
}
break;
case SIOCSIWSENS:
/* Set the level threshold */
#if WIRELESS_EXT > 7
/* We should complain loudly if wrq->u.sens.fixed = 0, because we
* can't set auto mode... */
psa.psa_thr_pre_set = wrq->u.sens.value & 0x3F;
#else /* WIRELESS_EXT > 7 */
psa.psa_thr_pre_set = wrq->u.sensitivity & 0x3F;
#endif /* WIRELESS_EXT > 7 */
psa_write(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa,
(unsigned char *)&psa.psa_thr_pre_set, 1);
/* update the Wavelan checksum */
update_psa_checksum(dev);
mmc_out(base, mmwoff(0, mmw_thr_pre_set), psa.psa_thr_pre_set);
break;
case SIOCGIWSENS:
/* Read the level threshold */
psa_read(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa,
(unsigned char *)&psa.psa_thr_pre_set, 1);
#if WIRELESS_EXT > 7
wrq->u.sens.value = psa.psa_thr_pre_set & 0x3F;
wrq->u.sens.fixed = 1;
#else /* WIRELESS_EXT > 7 */
wrq->u.sensitivity = psa.psa_thr_pre_set & 0x3F;
#endif /* WIRELESS_EXT > 7 */
break;
#if WIRELESS_EXT > 8
case SIOCSIWENCODE:
/* Set encryption key */
if(!mmc_encr(base))
{
ret = -EOPNOTSUPP;
break;
}
/* Basic checking... */
if(wrq->u.encoding.pointer != (caddr_t) 0)
{
/* Check the size of the key */
if(wrq->u.encoding.length != 8)
{
ret = -EINVAL;
break;
}
/* Copy the key in the driver */
if(copy_from_user(psa.psa_encryption_key, wrq->u.encoding.pointer,
wrq->u.encoding.length))
{
ret = -EFAULT;
break;
}
psa.psa_encryption_select = 1;
psa_write(dev, (char *) &psa.psa_encryption_select - (char *) &psa,
(unsigned char *) &psa.psa_encryption_select, 8+1);
mmc_out(base, mmwoff(0, mmw_encr_enable),
MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
mmc_write(base, mmwoff(0, mmw_encr_key),
(unsigned char *) &psa.psa_encryption_key, 8);
}
if(wrq->u.encoding.flags & IW_ENCODE_DISABLED)
{ /* disable encryption */
psa.psa_encryption_select = 0;
psa_write(dev, (char *) &psa.psa_encryption_select - (char *) &psa,
(unsigned char *) &psa.psa_encryption_select, 1);
mmc_out(base, mmwoff(0, mmw_encr_enable), 0);
}
/* update the Wavelan checksum */
update_psa_checksum(dev);
break;
case SIOCGIWENCODE:
/* Read the encryption key */
if(!mmc_encr(base))
{
ret = -EOPNOTSUPP;
break;
}
/* only super-user can see encryption key */
if(!capable(CAP_NET_ADMIN))
{
ret = -EPERM;
break;
}
/* Basic checking... */
if(wrq->u.encoding.pointer != (caddr_t) 0)
{
psa_read(dev, (char *) &psa.psa_encryption_select - (char *) &psa,
(unsigned char *) &psa.psa_encryption_select, 1+8);
/* encryption is enabled ? */
if(psa.psa_encryption_select)
wrq->u.encoding.flags = IW_ENCODE_ENABLED;
else
wrq->u.encoding.flags = IW_ENCODE_DISABLED;
wrq->u.encoding.flags |= mmc_encr(base);
/* Copy the key to the user buffer */
wrq->u.encoding.length = 8;
if(copy_to_user(wrq->u.encoding.pointer, psa.psa_encryption_key, 8))
ret = -EFAULT;
}
break;
#endif /* WIRELESS_EXT > 8 */
#ifdef WAVELAN_ROAMING_EXT
#if WIRELESS_EXT > 5
case SIOCSIWESSID:
/* Check if disable */
if(wrq->u.data.flags == 0)
lp->filter_domains = 0;
else
/* Basic checking... */
if(wrq->u.data.pointer != (caddr_t) 0)
{
char essid[IW_ESSID_MAX_SIZE + 1];
char * endp;
/* Check the size of the string */
if(wrq->u.data.length > IW_ESSID_MAX_SIZE + 1)
{
ret = -E2BIG;
break;
}
/* Copy the string in the driver */
if(copy_from_user(essid, wrq->u.data.pointer, wrq->u.data.length))
{
ret = -EFAULT;
break;
}
essid[IW_ESSID_MAX_SIZE] = '';
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "SetEssid : ``%s''n", essid);
#endif /* DEBUG_IOCTL_INFO */
/* Convert to a number (note : Wavelan specific) */
lp->domain_id = simple_strtoul(essid, &endp, 16);
/* Has it worked ? */
if(endp > essid)
lp->filter_domains = 1;
else
{
lp->filter_domains = 0;
ret = -EINVAL;
}
}
break;
case SIOCGIWESSID:
/* Basic checking... */
if(wrq->u.data.pointer != (caddr_t) 0)
{
char essid[IW_ESSID_MAX_SIZE + 1];
/* Is the domain ID active ? */
wrq->u.data.flags = lp->filter_domains;
/* Copy Domain ID into a string (Wavelan specific) */
/* Sound crazy, be we can't have a snprintf in the kernel !!! */
sprintf(essid, "%lX", lp->domain_id);
essid[IW_ESSID_MAX_SIZE] = '';
/* Set the length */
wrq->u.data.length = strlen(essid) + 1;
/* Copy structure to the user buffer */
if(copy_to_user(wrq->u.data.pointer, essid, wrq->u.data.length))
ret = -EFAULT;
}
break;
case SIOCSIWAP:
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "Set AP to : %02X:%02X:%02X:%02X:%02X:%02Xn",
wrq->u.ap_addr.sa_data[0],
wrq->u.ap_addr.sa_data[1],
wrq->u.ap_addr.sa_data[2],
wrq->u.ap_addr.sa_data[3],
wrq->u.ap_addr.sa_data[4],
wrq->u.ap_addr.sa_data[5]);
#endif /* DEBUG_IOCTL_INFO */
ret = -EOPNOTSUPP; /* Not supported yet */
break;
case SIOCGIWAP:
/* Should get the real McCoy instead of own Ethernet address */
memcpy(wrq->u.ap_addr.sa_data, dev->dev_addr, WAVELAN_ADDR_SIZE);
wrq->u.ap_addr.sa_family = ARPHRD_ETHER;
ret = -EOPNOTSUPP; /* Not supported yet */
break;
#endif /* WIRELESS_EXT > 5 */
#endif /* WAVELAN_ROAMING_EXT */
#if WIRELESS_EXT > 8
#ifdef WAVELAN_ROAMING
case SIOCSIWMODE:
switch(wrq->u.mode)
{
case IW_MODE_ADHOC:
if(do_roaming)
{
wv_roam_cleanup(dev);
do_roaming = 0;
}
break;
case IW_MODE_INFRA:
if(!do_roaming)
{
wv_roam_init(dev);
do_roaming = 1;
}
break;
default:
ret = -EINVAL;
}
break;
case SIOCGIWMODE:
if(do_roaming)
wrq->u.mode = IW_MODE_INFRA;
else
wrq->u.mode = IW_MODE_ADHOC;
break;
#endif /* WAVELAN_ROAMING */
#endif /* WIRELESS_EXT > 8 */
case SIOCGIWRANGE:
/* Basic checking... */
if(wrq->u.data.pointer != (caddr_t) 0)
{
struct iw_range range;
/* Set the length (very important for backward compatibility) */
wrq->u.data.length = sizeof(struct iw_range);
/* Set all the info we don't care or don't know about to zero */
memset(&range, 0, sizeof(range));
/* Set the Wireless Extension versions */
range.we_version_compiled = WIRELESS_EXT;
range.we_version_source = 9; /* Nothing for us in v10 and v11 */
/* Set information in the range struct */
range.throughput = 1.4 * 1000 * 1000; /* don't argue on this ! */
range.min_nwid = 0x0000;
range.max_nwid = 0xFFFF;
/* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) */
if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
(MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
{
range.num_channels = 10;
range.num_frequency = wv_frequency_list(base, range.freq,
IW_MAX_FREQUENCIES);
}
else
range.num_channels = range.num_frequency = 0;
range.sensitivity = 0x3F;
range.max_qual.qual = MMR_SGNL_QUAL;
range.max_qual.level = MMR_SIGNAL_LVL;
range.max_qual.noise = MMR_SILENCE_LVL;
#if WIRELESS_EXT > 11
range.avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
/* Need to get better values for those two */
range.avg_qual.level = 30;
range.avg_qual.noise = 8;
#endif /* WIRELESS_EXT > 11 */
#if WIRELESS_EXT > 7
range.num_bitrates = 1;
range.bitrate[0] = 2000000; /* 2 Mb/s */
#endif /* WIRELESS_EXT > 7 */
#if WIRELESS_EXT > 8
/* Encryption supported ? */
if(mmc_encr(base))
{
range.encoding_size[0] = 8; /* DES = 64 bits key */
range.num_encoding_sizes = 1;
range.max_encoding_tokens = 1; /* Only one key possible */
}
else
{
range.num_encoding_sizes = 0;
range.max_encoding_tokens = 0;
}
#endif /* WIRELESS_EXT > 8 */
/* Copy structure to the user buffer */
if(copy_to_user(wrq->u.data.pointer, &range,
sizeof(struct iw_range)))
ret = -EFAULT;
}
break;
case SIOCGIWPRIV:
/* Basic checking... */
if(wrq->u.data.pointer != (caddr_t) 0)
{
struct iw_priv_args priv[] =
{ /* cmd, set_args, get_args, name */
{ SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" },
{ SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" },
{ SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" },
{ SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" },
{ SIOCSIPROAM, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1 , 0, "setroam" },
{ SIOCGIPROAM, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getroam" },
};
/* Set the number of ioctl available */
wrq->u.data.length = 6;
/* Copy structure to the user buffer */
if(copy_to_user(wrq->u.data.pointer, (u_char *) priv,
sizeof(priv)))
ret = -EFAULT;
}
break;
#ifdef WIRELESS_SPY
case SIOCSIWSPY:
/* Set the spy list */
/* Check the number of addresses */
if(wrq->u.data.length > IW_MAX_SPY)
{
ret = -E2BIG;
break;
}
lp->spy_number = wrq->u.data.length;
/* If there is some addresses to copy */
if(lp->spy_number > 0)
{
struct sockaddr address[IW_MAX_SPY];
int i;
/* Copy addresses to the driver */
if(copy_from_user(address, wrq->u.data.pointer,
sizeof(struct sockaddr) * lp->spy_number))
{
ret = -EFAULT;
break;
}
/* Copy addresses to the lp structure */
for(i = 0; i < lp->spy_number; i++)
{
memcpy(lp->spy_address[i], address[i].sa_data,
WAVELAN_ADDR_SIZE);
}
/* Reset structure... */
memset(lp->spy_stat, 0x00, sizeof(iw_qual) * IW_MAX_SPY);
#ifdef DEBUG_IOCTL_INFO
printk(KERN_DEBUG "SetSpy - Set of new addresses is :n");
for(i = 0; i < wrq->u.data.length; i++)
printk(KERN_DEBUG "%02X:%02X:%02X:%02X:%02X:%02Xn",
lp->spy_address[i][0],
lp->spy_address[i][1],
lp->spy_address[i][2],
lp->spy_address[i][3],
lp->spy_address[i][4],
lp->spy_address[i][5]);
#endif /* DEBUG_IOCTL_INFO */
}
break;
case SIOCGIWSPY:
/* Get the spy list and spy stats */
/* Set the number of addresses */
wrq->u.data.length = lp->spy_number;
/* If the user want to have the addresses back... */
if((lp->spy_number > 0) && (wrq->u.data.pointer != (caddr_t) 0))
{
struct sockaddr address[IW_MAX_SPY];
int i;
/* Copy addresses from the lp structure */
for(i = 0; i < lp->spy_number; i++)
{
memcpy(address[i].sa_data, lp->spy_address[i],
WAVELAN_ADDR_SIZE);
address[i].sa_family = ARPHRD_ETHER;
}
/* Copy addresses to the user buffer */
if(copy_to_user(wrq->u.data.pointer, address,
sizeof(struct sockaddr) * lp->spy_number))
{
ret = -EFAULT;
break;
}
/* Copy stats to the user buffer (just after) */
if(copy_to_user(wrq->u.data.pointer +
(sizeof(struct sockaddr) * lp->spy_number),
lp->spy_stat, sizeof(iw_qual) * lp->spy_number))
{
ret = -EFAULT;
break;
}
/* Reset updated flags */
for(i = 0; i < lp->spy_number; i++)
lp->spy_stat[i].updated = 0x0;
} /* if(pointer != NULL) */