diff options
Diffstat (limited to 'drivers/net/wireless/wavelan_cs.c')
| -rw-r--r-- | drivers/net/wireless/wavelan_cs.c | 4635 |
1 files changed, 0 insertions, 4635 deletions
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c deleted file mode 100644 index 431a20e..0000000 --- a/drivers/net/wireless/wavelan_cs.c +++ /dev/null @@ -1,4635 +0,0 @@ -/* - * Wavelan Pcmcia driver - * - * Jean II - HPLB '96 - * - * Reorganisation and extension of the driver. - * Original copyright follow. See wavelan_cs.p.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... - * - **************************************************************************** - * Copyright 1995 - * 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. - **************************************************************************** - * - */ - -/* Do *NOT* add other headers here, you are guaranteed to be wrong - Jean II */ -#include "wavelan_cs.p.h" /* Private header */ - -#ifdef WAVELAN_ROAMING -static void wl_cell_expiry(unsigned long data); -static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp); -static void wv_nwid_filter(unsigned char mode, net_local *lp); -#endif /* WAVELAN_ROAMING */ - -/************************* MISC SUBROUTINES **************************/ -/* - * Subroutines which won't fit in one of the following category - * (wavelan modem or i82593) - */ - -/******************* MODEM MANAGEMENT SUBROUTINES *******************/ -/* - * Useful 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 void -hacr_write_slow(u_long base, - u_char hacr) -{ - hacr_write(base, hacr); - /* delay might only be needed sometimes */ - mdelay(1); -} /* hacr_write_slow */ - -/*------------------------------------------------------------------*/ -/* - * Read the Parameter Storage Area from the WaveLAN card's memory - */ -static void -psa_read(struct net_device * dev, - int o, /* offset in PSA */ - u_char * b, /* buffer to fill */ - int n) /* size to read */ -{ - net_local *lp = netdev_priv(dev); - u_char __iomem *ptr = lp->mem + 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 Parameter Storage Area to the WaveLAN card's memory - */ -static void -psa_write(struct net_device * dev, - int o, /* Offset in psa */ - u_char * b, /* Buffer in memory */ - int n) /* Length of buffer */ -{ - net_local *lp = netdev_priv(dev); - u_char __iomem *ptr = lp->mem + PSA_ADDR + (o << 1); - int count = 0; - unsigned int 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 __iomem *verify = lp->mem + PSA_ADDR + - (psaoff(0, psa_comp_number) << 1); - - /* Authorize writing 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(struct net_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%02x\n", - 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 void -mmc_out(u_long base, - u_short o, - u_char d) -{ - int count = 0; - - /* Wait for MMC to go idle */ - while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) - udelay(10); - - 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 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 u_char -mmc_in(u_long base, - u_short o) -{ - int count = 0; - - while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) - udelay(10); - outb(o << 1, MMR(base)); /* Set the read address */ - - outb(0, MMD(base)); /* Required dummy write */ - - while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) - udelay(10); - 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 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... - */ -static 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))); - } -} - - -/*------------------------------------------------------------------*/ -/* - * 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-%02X\n", - 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 */ -} - -/******************* WaveLAN Roaming routines... ********************/ - -#ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */ - -static unsigned char WAVELAN_BEACON_ADDRESS[] = {0x09,0x00,0x0e,0x20,0x03,0x00}; - -static void wv_roam_init(struct net_device *dev) -{ - net_local *lp= netdev_priv(dev); - - /* 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=(long)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 %s\n",dev->name); -} - -static void wv_roam_cleanup(struct net_device *dev) -{ - wavepoint_history *ptr,*old_ptr; - net_local *lp= netdev_priv(dev); - - printk(KERN_DEBUG "WaveLAN: Roaming Disabled on device %s\n",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 */ -static 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 %s\n",(mode==NWID_PROMISC) ? "on" : "off", lp->dev->name); -#endif - - /* Disable interrupts & save flags */ - spin_lock_irqsave(&lp->spinlock, 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); - - if(mode==NWID_PROMISC) - lp->cell_search=1; - else - lp->cell_search=0; - - /* ReEnable interrupts & restore flags */ - spin_unlock_irqrestore(&lp->spinlock, flags); -} - -/* Find a record in the WavePoint table matching a given NWID */ -static 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 */ -static 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:%.4X\n",nwid); -#endif - - if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS) - return NULL; - - new_wavepoint = 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 */ -static 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 */ -static 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 %s\n",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(time_after(jiffies, wavepoint->last_seen + CELL_TIMEOUT)) - { -#ifdef WAVELAN_ROAMING_DEBUG - printk(KERN_DEBUG "WaveLAN: Bye bye %.4X\n",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 */ -static 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 */ -static void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp) -{ - unsigned int 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 %s\n",wavepoint->nwid,lp->dev->name); -#endif - - /* Disable interrupts & save flags */ - spin_lock_irqsave(&lp->spinlock, 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->spinlock, flags); - - wv_nwid_filter(!NWID_PROMISC,lp); - lp->curr_point=wavepoint; -} - -/* Called when a WavePoint beacon is received */ -static void wl_roam_gather(struct net_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 = netdev_priv(dev); /* Device info */ - -#ifdef I_NEED_THIS_FEATURE - /* Some people don't need this, some other may need it */ - nwid=nwid^ntohs(beacon->domain_id); -#endif - -#if WAVELAN_ROAMING_DEBUG > 1 - printk(KERN_DEBUG "WaveLAN: beacon, dev %s:\n",dev->name); - printk(KERN_DEBUG "Domain: %.4X NWID: %.4X SigQual=%d\n",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 const 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 disabled. - * (called by wv_packet_write(), wv_ru_stop(), wv_ru_start(), - * wv_82593_config() & wv_diag()) - */ -static int -wv_82593_cmd(struct net_device * dev, - char * str, - int cmd, - int result) -{ - unsigned int base = dev->base_addr; - int status; - int wait_completed; - long spin; - - /* Spin until the chip finishes executing its current command (if any) */ - spin = 1000; - do - { - /* Time calibration of the loop */ - udelay(10); - - /* Read the interrupt register */ - outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); - status = inb(LCSR(base)); - } - while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0)); - - /* If the interrupt hasn't been posted */ - if (spin < 0) { -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "wv_82593_cmd: %s timeout (previous command), status 0x%02x\n", - str, status); -#endif - return(FALSE); - } - - /* Issue the command to the controller */ - outb(cmd, LCCR(base)); - - /* If we don't have to check the result of the command - * Note : this mean that the irq handler will deal with that */ - if(result == SR0_NO_RESULT) - return(TRUE); - - /* We are waiting for command completion */ - wait_completed = TRUE; - - /* Busy wait while the LAN controller executes the command. */ - spin = 1000; - do - { - /* Time calibration of the loop */ - udelay(10); - - /* Read the interrupt register */ - outb(CR0_STATUS_0 | OP0_NOP, LCCR(base)); - status = inb(LCSR(base)); - - /* Check if there was an interrupt posted */ - if((status & SR0_INTERRUPT)) - { - /* Acknowledge the interrupt */ - outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); - - /* Check if interrupt is a command completion */ - if(((status & SR0_BOTH_RX_TX) != SR0_BOTH_RX_TX) && - ((status & SR0_BOTH_RX_TX) != 0x0) && - !(status & SR0_RECEPTION)) - { - /* Signal command completion */ - wait_completed = FALSE; - } - else - { - /* Note : Rx interrupts will be handled later, because we can - * handle multiple Rx packets at once */ -#ifdef DEBUG_INTERRUPT_INFO - printk(KERN_INFO "wv_82593_cmd: not our interrupt\n"); -#endif - } - } - } - while(wait_completed && (spin-- > 0)); - - /* If the interrupt hasn't be posted */ - if(wait_completed) - { -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "wv_82593_cmd: %s timeout, status 0x%02x\n", - str, status); -#endif - return(FALSE); - } - - /* Check the return code returned by the card (see above) against - * the expected return code provided by the caller */ - if((status & SR0_EVENT_MASK) != result) - { -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "wv_82593_cmd: %s failed, status = 0x%x\n", - str, 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(struct net_device * dev) -{ - return(wv_82593_cmd(dev, "wv_diag(): diagnose", - OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED)); -} /* 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(struct net_device * dev, - int addr, - char * buf, - int len) -{ - unsigned int base = dev->base_addr; - int ring_ptr = addr; - int chunk_len; - char * buf_ptr = buf; - - /* 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 void -wv_82593_reconfig(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - struct pcmcia_device * link = lp->link; - unsigned long flags; - - /* Arm the flag, will be cleard in wv_82593_config() */ - lp->reconfig_82593 = TRUE; - - /* Check if we can do it now ! */ - if((link->open) && (netif_running(dev)) && !(netif_queue_stopped(dev))) - { - spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */ - wv_82593_config(dev); - spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */ - } - else - { -#ifdef DEBUG_IOCTL_INFO - printk(KERN_DEBUG - "%s: wv_82593_reconfig(): delayed (state = %lX, link = %d)\n", - dev->name, dev->state, link->open); -#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 %02X\n", - 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 %02X\n", - 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: %d\n", p->psa_int_req_no); -#ifdef DEBUG_SHOW_UNUSED - printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0); -#endif /* DEBUG_SHOW_UNUSED */ - printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr); - printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr); - 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%02x\n", 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: %d\n", p->psa_subband); - printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr); - printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay); - printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], p->psa_nwid[1]); - printk("psa_nwid_select: %d\n", 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:%02x\n", - 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: %d\n", 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:%02X\n", - 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\n", - p->psa_reserved[0], - p->psa_reserved[1]); -#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%02x\n", 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(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - mmr_t m; - - /* Basic check */ - if(hasr_read(base) & HASR_NO_CLK) - { - printk(KERN_WARNING "%s: wv_mmc_show: modem not connected\n", - dev->name); - return; - } - - spin_lock_irqsave(&lp->spinlock, flags); - - /* 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); - - /* Don't forget to update statistics */ - lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; - - spin_unlock_irqrestore(&lp->spinlock, flags); - - printk(KERN_DEBUG "##### wavelan modem status registers: #####\n"); -#ifdef DEBUG_SHOW_UNUSED - printk(KERN_DEBUG "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", - 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 algorithm: %02X - Status: %02X\n", - m.mmr_des_avail, m.mmr_des_status); -#ifdef DEBUG_SHOW_UNUSED - printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n", - 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: %02X\n", - m.mmr_dsp_id); -#ifdef DEBUG_SHOW_UNUSED - printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n", - m.mmr_unused2[0], - m.mmr_unused2[1]); -#endif /* DEBUG_SHOW_UNUSED */ - printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n", - (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: %x\n", 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(struct net_device * dev) -{ - net_local *lp = netdev_priv(dev); - - 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(struct net_device * dev) -{ - printk(KERN_DEBUG "dev:"); - printk(" state=%lX,", dev->state); - 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(struct net_device * dev) -{ - net_local *lp = netdev_priv(dev); - - 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 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 %pM, length %d\n", - msg1, msg2, p, length); - printk(KERN_DEBUG "%s: %s(): src %pM, type 0x%02X%02X\n", - msg1, msg2, &p[6], 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 void -wv_init_info(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - psa_t psa; - - /* 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 %pM", - dev->name, base, dev->irq, dev->dev_addr); - - /* 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(" MHz\n"); -#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 - */ - - -/*------------------------------------------------------------------*/ -/* - * 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(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - -#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); - } - } - 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); - } - } - 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(struct net_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 */ - - -/*------------------------------------------------------------------*/ -/* - * Frequency setting (for hardware able of it) - * It's a bit complicated and you don't really want to look into it... - */ -static 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 %04X\n", - 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 writing 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 %04X\n", - dac_verify[0], dac_verify[1]); -#endif - - return 0; - } - else - return -EINVAL; /* Bah, never get there... */ -} - -/*------------------------------------------------------------------*/ -/* - * Give the list of available frequencies - */ -static 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 */ - const int BAND_NUM = 10; /* Number of bands */ - int c = 0; /* Channel number */ - - /* 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))) - { - /* Compute approximate channel number */ - while((((channel_bands[c] >> 1) - 24) < freq) && - (c < BAND_NUM)) - c++; - list[i].i = c; /* Set the list index */ - - /* 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 IW_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(struct net_device * dev, - u_char * mac, /* MAC address */ - u_char * stats) /* Statistics to gather */ -{ - struct iw_quality wstats; - - wstats.qual = stats[2] & MMR_SGNL_QUAL; - wstats.level = stats[0] & MMR_SIGNAL_LVL; - wstats.noise = stats[1] & MMR_SILENCE_LVL; - wstats.updated = 0x7; - - /* Update spy records */ - wireless_spy_update(dev, mac, &wstats); -} -#endif /* IW_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(struct net_device * dev, - u_char * stats) /* Statistics to gather */ -{ - net_local * lp = netdev_priv(dev); - 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 */ - -static void wl_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - strncpy(info->driver, "wavelan_cs", sizeof(info->driver)-1); -} - -static const struct ethtool_ops ops = { - .get_drvinfo = wl_get_drvinfo -}; - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get protocol name - */ -static int wavelan_get_name(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - strcpy(wrqu->name, "WaveLAN"); - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set NWID - */ -static int wavelan_set_nwid(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - psa_t psa; - mm_t m; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Set NWID in WaveLAN. */ - if (!wrqu->nwid.disabled) { - /* Set NWID in psa */ - psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8; - psa.psa_nwid[1] = wrqu->nwid.value & 0xFF; - 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); - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get NWID - */ -static int wavelan_get_nwid(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Read the NWID. */ - psa_read(dev, - (char *) psa.psa_nwid - (char *) &psa, - (unsigned char *) psa.psa_nwid, 3); - wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1]; - wrqu->nwid.disabled = !(psa.psa_nwid_select); - wrqu->nwid.fixed = 1; /* Superfluous */ - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set frequency - */ -static int wavelan_set_freq(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - unsigned long flags; - int ret; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* 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, &(wrqu->freq)); - else - ret = -EOPNOTSUPP; - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get frequency - */ -static int wavelan_get_freq(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). - * Does it work for everybody, 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, &freq, 1); - wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000; - wrqu->freq.e = 1; - } else { - psa_read(dev, - (char *) &psa.psa_subband - (char *) &psa, - (unsigned char *) &psa.psa_subband, 1); - - if (psa.psa_subband <= 4) { - wrqu->freq.m = fixed_bands[psa.psa_subband]; - wrqu->freq.e = (psa.psa_subband != 0); - } else - ret = -EOPNOTSUPP; - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set level threshold - */ -static int wavelan_set_sens(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Set the level threshold. */ - /* We should complain loudly if wrqu->sens.fixed = 0, because we - * can't set auto mode... */ - psa.psa_thr_pre_set = wrqu->sens.value & 0x3F; - 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); - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get level threshold - */ -static int wavelan_get_sens(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Read the level threshold. */ - psa_read(dev, - (char *) &psa.psa_thr_pre_set - (char *) &psa, - (unsigned char *) &psa.psa_thr_pre_set, 1); - wrqu->sens.value = psa.psa_thr_pre_set & 0x3F; - wrqu->sens.fixed = 1; - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set encryption key - */ -static int wavelan_set_encode(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - unsigned long flags; - psa_t psa; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Check if capable of encryption */ - if (!mmc_encr(base)) { - ret = -EOPNOTSUPP; - } - - /* Check the size of the key */ - if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) { - ret = -EINVAL; - } - - if(!ret) { - /* Basic checking... */ - if (wrqu->encoding.length == 8) { - /* Copy the key in the driver */ - memcpy(psa.psa_encryption_key, extra, - wrqu->encoding.length); - 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); - } - - /* disable encryption */ - if (wrqu->encoding.flags & IW_ENCODE_DISABLED) { - 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); - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get encryption key - */ -static int wavelan_get_encode(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Check if encryption is available */ - if (!mmc_encr(base)) { - ret = -EOPNOTSUPP; - } else { - /* Read the encryption key */ - 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) - wrqu->encoding.flags = IW_ENCODE_ENABLED; - else - wrqu->encoding.flags = IW_ENCODE_DISABLED; - wrqu->encoding.flags |= mmc_encr(base); - - /* Copy the key to the user buffer */ - wrqu->encoding.length = 8; - memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length); - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -#ifdef WAVELAN_ROAMING_EXT -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set ESSID (domain) - */ -static int wavelan_set_essid(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Check if disable */ - if(wrqu->data.flags == 0) - lp->filter_domains = 0; - else { - char essid[IW_ESSID_MAX_SIZE + 1]; - char * endp; - - /* Terminate the string */ - memcpy(essid, extra, wrqu->data.length); - essid[IW_ESSID_MAX_SIZE] = '\0'; - -#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; - } - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get ESSID (domain) - */ -static int wavelan_get_essid(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - - /* Is the domain ID active ? */ - wrqu->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(extra, "%lX", lp->domain_id); - extra[IW_ESSID_MAX_SIZE] = '\0'; - - /* Set the length */ - wrqu->data.length = strlen(extra); - - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set AP address - */ -static int wavelan_set_wap(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ -#ifdef DEBUG_IOCTL_INFO - printk(KERN_DEBUG "Set AP to : %pM\n", wrqu->ap_addr.sa_data); -#endif /* DEBUG_IOCTL_INFO */ - - return -EOPNOTSUPP; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get AP address - */ -static int wavelan_get_wap(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - /* Should get the real McCoy instead of own Ethernet address */ - memcpy(wrqu->ap_addr.sa_data, dev->dev_addr, WAVELAN_ADDR_SIZE); - wrqu->ap_addr.sa_family = ARPHRD_ETHER; - - return -EOPNOTSUPP; -} -#endif /* WAVELAN_ROAMING_EXT */ - -#ifdef WAVELAN_ROAMING -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : set mode - */ -static int wavelan_set_mode(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - unsigned long flags; - int ret = 0; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Check mode */ - switch(wrqu->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; - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get mode - */ -static int wavelan_get_mode(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - if(do_roaming) - wrqu->mode = IW_MODE_INFRA; - else - wrqu->mode = IW_MODE_ADHOC; - - return 0; -} -#endif /* WAVELAN_ROAMING */ - -/*------------------------------------------------------------------*/ -/* - * Wireless Handler : get range info - */ -static int wavelan_get_range(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - struct iw_range *range = (struct iw_range *) extra; - unsigned long flags; - int ret = 0; - - /* Set the length (very important for backward compatibility) */ - wrqu->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(struct iw_range)); - - /* Set the Wireless Extension versions */ - range->we_version_compiled = WIRELESS_EXT; - range->we_version_source = 9; - - /* 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; - - range->sensitivity = 0x3F; - range->max_qual.qual = MMR_SGNL_QUAL; - range->max_qual.level = MMR_SIGNAL_LVL; - range->max_qual.noise = MMR_SILENCE_LVL; - 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; - - range->num_bitrates = 1; - range->bitrate[0] = 2000000; /* 2 Mb/s */ - - /* Event capability (kernel + driver) */ - range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) | - IW_EVENT_CAPA_MASK(0x8B04) | - IW_EVENT_CAPA_MASK(0x8B06)); - range->event_capa[1] = IW_EVENT_CAPA_K_1; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* 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; - - /* 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; - } - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return ret; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : set quality threshold - */ -static int wavelan_set_qthr(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - unsigned int base = dev->base_addr; - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - psa.psa_quality_thr = *(extra) & 0x0F; - psa_write(dev, - (char *) &psa.psa_quality_thr - (char *) &psa, - (unsigned char *) &psa.psa_quality_thr, 1); - /* update the Wavelan checksum */ - update_psa_checksum(dev); - mmc_out(base, mmwoff(0, mmw_quality_thr), - psa.psa_quality_thr); - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : get quality threshold - */ -static int wavelan_get_qthr(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - psa_t psa; - unsigned long flags; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - psa_read(dev, - (char *) &psa.psa_quality_thr - (char *) &psa, - (unsigned char *) &psa.psa_quality_thr, 1); - *(extra) = psa.psa_quality_thr & 0x0F; - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return 0; -} - -#ifdef WAVELAN_ROAMING -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : set roaming - */ -static int wavelan_set_roam(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - unsigned long flags; - - /* Disable interrupts and save flags. */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Note : should check if user == root */ - if(do_roaming && (*extra)==0) - wv_roam_cleanup(dev); - else if(do_roaming==0 && (*extra)!=0) - wv_roam_init(dev); - - do_roaming = (*extra); - - /* Enable interrupts and restore flags. */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : get quality threshold - */ -static int wavelan_get_roam(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - *(extra) = do_roaming; - - return 0; -} -#endif /* WAVELAN_ROAMING */ - -#ifdef HISTOGRAM -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : set histogram - */ -static int wavelan_set_histo(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - - /* Check the number of intervals. */ - if (wrqu->data.length > 16) { - return(-E2BIG); - } - - /* Disable histo while we copy the addresses. - * As we don't disable interrupts, we need to do this */ - lp->his_number = 0; - - /* Are there ranges to copy? */ - if (wrqu->data.length > 0) { - /* Copy interval ranges to the driver */ - memcpy(lp->his_range, extra, wrqu->data.length); - - { - int i; - printk(KERN_DEBUG "Histo :"); - for(i = 0; i < wrqu->data.length; i++) - printk(" %d", lp->his_range[i]); - printk("\n"); - } - - /* Reset result structure. */ - memset(lp->his_sum, 0x00, sizeof(long) * 16); - } - - /* Now we can set the number of ranges */ - lp->his_number = wrqu->data.length; - - return(0); -} - -/*------------------------------------------------------------------*/ -/* - * Wireless Private Handler : get histogram - */ -static int wavelan_get_histo(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - net_local *lp = netdev_priv(dev); - - /* Set the number of intervals. */ - wrqu->data.length = lp->his_number; - - /* Give back the distribution statistics */ - if(lp->his_number > 0) - memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number); - - return(0); -} -#endif /* HISTOGRAM */ - -/*------------------------------------------------------------------*/ -/* - * Structures to export the Wireless Handlers - */ - -static const struct iw_priv_args wavelan_private_args[] = { -/*{ 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" }, - { SIOCSIPROAM, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setroam" }, - { SIOCGIPROAM, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getroam" }, - { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" }, - { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" }, -}; - -static const iw_handler wavelan_handler[] = -{ - NULL, /* SIOCSIWNAME */ - wavelan_get_name, /* SIOCGIWNAME */ - wavelan_set_nwid, /* SIOCSIWNWID */ - wavelan_get_nwid, /* SIOCGIWNWID */ - wavelan_set_freq, /* SIOCSIWFREQ */ - wavelan_get_freq, /* SIOCGIWFREQ */ -#ifdef WAVELAN_ROAMING - wavelan_set_mode, /* SIOCSIWMODE */ - wavelan_get_mode, /* SIOCGIWMODE */ -#else /* WAVELAN_ROAMING */ - NULL, /* SIOCSIWMODE */ - NULL, /* SIOCGIWMODE */ -#endif /* WAVELAN_ROAMING */ - wavelan_set_sens, /* SIOCSIWSENS */ - wavelan_get_sens, /* SIOCGIWSENS */ - NULL, /* SIOCSIWRANGE */ - wavelan_get_range, /* SIOCGIWRANGE */ - NULL, /* SIOCSIWPRIV */ - NULL, /* SIOCGIWPRIV */ - NULL, /* SIOCSIWSTATS */ - NULL, /* SIOCGIWSTATS */ - iw_handler_set_spy, /* SIOCSIWSPY */ - iw_handler_get_spy, /* SIOCGIWSPY */ - iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ - iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ -#ifdef WAVELAN_ROAMING_EXT - wavelan_set_wap, /* SIOCSIWAP */ - wavelan_get_wap, /* SIOCGIWAP */ - NULL, /* -- hole -- */ - NULL, /* SIOCGIWAPLIST */ - NULL, /* -- hole -- */ - NULL, /* -- hole -- */ - wavelan_set_essid, /* SIOCSIWESSID */ - wavelan_get_essid, /* SIOCGIWESSID */ -#else /* WAVELAN_ROAMING_EXT */ - NULL, /* SIOCSIWAP */ - NULL, /* SIOCGIWAP */ - NULL, /* -- hole -- */ - NULL, /* SIOCGIWAPLIST */ - NULL, /* -- hole -- */ - NULL, /* -- hole -- */ - NULL, /* SIOCSIWESSID */ - NULL, /* SIOCGIWESSID */ -#endif /* WAVELAN_ROAMING_EXT */ - NULL, /* SIOCSIWNICKN */ - NULL, /* SIOCGIWNICKN */ - NULL, /* -- hole -- */ - NULL, /* -- hole -- */ - NULL, /* SIOCSIWRATE */ - NULL, /* SIOCGIWRATE */ - NULL, /* SIOCSIWRTS */ - NULL, /* SIOCGIWRTS */ - NULL, /* SIOCSIWFRAG */ - NULL, /* SIOCGIWFRAG */ - NULL, /* SIOCSIWTXPOW */ - NULL, /* SIOCGIWTXPOW */ - NULL, /* SIOCSIWRETRY */ - NULL, /* SIOCGIWRETRY */ - wavelan_set_encode, /* SIOCSIWENCODE */ - wavelan_get_encode, /* SIOCGIWENCODE */ -}; - -static const iw_handler wavelan_private_handler[] = -{ - wavelan_set_qthr, /* SIOCIWFIRSTPRIV */ - wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */ -#ifdef WAVELAN_ROAMING - wavelan_set_roam, /* SIOCIWFIRSTPRIV + 2 */ - wavelan_get_roam, /* SIOCIWFIRSTPRIV + 3 */ -#else /* WAVELAN_ROAMING */ - NULL, /* SIOCIWFIRSTPRIV + 2 */ - NULL, /* SIOCIWFIRSTPRIV + 3 */ -#endif /* WAVELAN_ROAMING */ -#ifdef HISTOGRAM - wavelan_set_histo, /* SIOCIWFIRSTPRIV + 4 */ - wavelan_get_histo, /* SIOCIWFIRSTPRIV + 5 */ -#endif /* HISTOGRAM */ -}; - -static const struct iw_handler_def wavelan_handler_def = -{ - .num_standard = ARRAY_SIZE(wavelan_handler), - .num_private = ARRAY_SIZE(wavelan_private_handler), - .num_private_args = ARRAY_SIZE(wavelan_private_args), - .standard = wavelan_handler, - .private = wavelan_private_handler, - .private_args = wavelan_private_args, - .get_wireless_stats = wavelan_get_wireless_stats, -}; - -/*------------------------------------------------------------------*/ -/* - * Get wireless statistics - * Called by /proc/net/wireless... - */ -static iw_stats * -wavelan_get_wireless_stats(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - mmr_t m; - iw_stats * wstats; - unsigned long flags; - -#ifdef DEBUG_IOCTL_TRACE - printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", dev->name); -#endif - - /* Disable interrupts & save flags */ - spin_lock_irqsave(&lp->spinlock, flags); - - wstats = &lp->wstats; - - /* Get data from the mmc */ - mmc_out(base, mmwoff(0, mmw_freeze), 1); - - mmc_read(base, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1); - mmc_read(base, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, 2); - mmc_read(base, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, 4); - - mmc_out(base, mmwoff(0, mmw_freeze), 0); - - /* Copy data to wireless stuff */ - wstats->status = m.mmr_dce_status & MMR_DCE_STATUS; - wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL; - wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL; - wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL; - wstats->qual.updated = (((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) | - ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) | - ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5)); - wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; - wstats->discard.code = 0L; - wstats->discard.misc = 0L; - - /* ReEnable interrupts & restore flags */ - spin_unlock_irqrestore(&lp->spinlock, flags); - -#ifdef DEBUG_IOCTL_TRACE - printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", dev->name); -#endif - return &lp->wstats; -} - -/************************* PACKET RECEPTION *************************/ -/* - * This part deal with receiving the packets. - * The interrupt handler get an interrupt when a packet has been - * successfully received and called this part... - */ - -/*------------------------------------------------------------------*/ -/* - * Calculate the starting address of the frame pointed to by the receive - * frame pointer and verify that the frame seem correct - * (called by wv_packet_rcv()) - */ -static int -wv_start_of_frame(struct net_device * dev, - int rfp, /* end of frame */ - int wrap) /* start of buffer */ -{ - unsigned int base = dev->base_addr; - int rp; - int len; - - rp = (rfp - 5 + RX_SIZE) % RX_SIZE; - outb(rp & 0xff, PIORL(base)); - outb(((rp >> 8) & PIORH_MASK), PIORH(base)); - len = inb(PIOP(base)); - len |= inb(PIOP(base)) << 8; - - /* Sanity checks on size */ - /* Frame too big */ - if(len > MAXDATAZ + 100) - { -#ifdef DEBUG_RX_ERROR - printk(KERN_INFO "%s: wv_start_of_frame: Received frame too large, rfp %d len 0x%x\n", - dev->name, rfp, len); -#endif - return(-1); - } - - /* Frame too short */ - if(len < 7) - { -#ifdef DEBUG_RX_ERROR - printk(KERN_INFO "%s: wv_start_of_frame: Received null frame, rfp %d len 0x%x\n", - dev->name, rfp, len); -#endif - return(-1); - } - - /* Wrap around buffer */ - if(len > ((wrap - (rfp - len) + RX_SIZE) % RX_SIZE)) /* magic formula ! */ - { -#ifdef DEBUG_RX_ERROR - printk(KERN_INFO "%s: wv_start_of_frame: wrap around buffer, wrap %d rfp %d len 0x%x\n", - dev->name, wrap, rfp, len); -#endif - return(-1); - } - - return((rp - len + RX_SIZE) % RX_SIZE); -} /* wv_start_of_frame */ - -/*------------------------------------------------------------------*/ -/* - * This routine does the actual copy of data (including the ethernet - * header structure) from the WaveLAN card to an sk_buff chain that - * will be passed up to the network interface layer. NOTE: We - * currently don't handle trailer protocols (neither does the rest of - * the network interface), so if that is needed, it will (at least in - * part) be added here. The contents of the receive ring buffer are - * copied to a message chain that is then passed to the kernel. - * - * Note: if any errors occur, the packet is "dropped on the floor" - * (called by wv_packet_rcv()) - */ -static void -wv_packet_read(struct net_device * dev, - int fd_p, - int sksize) -{ - net_local * lp = netdev_priv(dev); - struct sk_buff * skb; - -#ifdef DEBUG_RX_TRACE - printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n", - dev->name, fd_p, sksize); -#endif - - /* Allocate some buffer for the new packet */ - if((skb = dev_alloc_skb(sksize+2)) == (struct sk_buff *) NULL) - { -#ifdef DEBUG_RX_ERROR - printk(KERN_INFO "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC)\n", - dev->name, sksize); -#endif - dev->stats.rx_dropped++; - /* - * Not only do we want to return here, but we also need to drop the - * packet on the floor to clear the interrupt. - */ - return; - } - - skb_reserve(skb, 2); - fd_p = read_ringbuf(dev, fd_p, (char *) skb_put(skb, sksize), sksize); - skb->protocol = eth_type_trans(skb, dev); - -#ifdef DEBUG_RX_INFO - wv_packet_info(skb_mac_header(skb), sksize, dev->name, "wv_packet_read"); -#endif /* DEBUG_RX_INFO */ - - /* Statistics gathering & stuff associated. - * It seem a bit messy with all the define, but it's really simple... */ - if( -#ifdef IW_WIRELESS_SPY - (lp->spy_data.spy_number > 0) || -#endif /* IW_WIRELESS_SPY */ -#ifdef HISTOGRAM - (lp->his_number > 0) || -#endif /* HISTOGRAM */ -#ifdef WAVELAN_ROAMING - (do_roaming) || -#endif /* WAVELAN_ROAMING */ - 0) - { - u_char stats[3]; /* Signal level, Noise level, Signal quality */ - - /* read signal level, silence level and signal quality bytes */ - fd_p = read_ringbuf(dev, (fd_p + 4) % RX_SIZE + RX_BASE, - stats, 3); -#ifdef DEBUG_RX_INFO - printk(KERN_DEBUG "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n", - dev->name, stats[0] & 0x3F, stats[1] & 0x3F, stats[2] & 0x0F); -#endif - -#ifdef WAVELAN_ROAMING - if(do_roaming) - if(WAVELAN_BEACON(skb->data)) - wl_roam_gather(dev, skb->data, stats); -#endif /* WAVELAN_ROAMING */ - -#ifdef WIRELESS_SPY - wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE, stats); -#endif /* WIRELESS_SPY */ -#ifdef HISTOGRAM - wl_his_gather(dev, stats); -#endif /* HISTOGRAM */ - } - - /* - * Hand the packet to the Network Module - */ - netif_rx(skb); - - /* Keep stats up to date */ - dev->stats.rx_packets++; - dev->stats.rx_bytes += sksize; - -#ifdef DEBUG_RX_TRACE - printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name); -#endif - return; -} - -/*------------------------------------------------------------------*/ -/* - * This routine is called by the interrupt handler to initiate a - * packet transfer from the card to the network interface layer above - * this driver. This routine checks if a buffer has been successfully - * received by the WaveLAN card. If so, the routine wv_packet_read is - * called to do the actual transfer of the card's data including the - * ethernet header into a packet consisting of an sk_buff chain. - * (called by wavelan_interrupt()) - * Note : the spinlock is already grabbed for us and irq are disabled. - */ -static void -wv_packet_rcv(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - int newrfp; - int rp; - int len; - int f_start; - int status; - int i593_rfp; - int stat_ptr; - u_char c[4]; - -#ifdef DEBUG_RX_TRACE - printk(KERN_DEBUG "%s: ->wv_packet_rcv()\n", dev->name); -#endif - - /* Get the new receive frame pointer from the i82593 chip */ - outb(CR0_STATUS_2 | OP0_NOP, LCCR(base)); - i593_rfp = inb(LCSR(base)); - i593_rfp |= inb(LCSR(base)) << 8; - i593_rfp %= RX_SIZE; - - /* Get the new receive frame pointer from the WaveLAN card. - * It is 3 bytes more than the increment of the i82593 receive - * frame pointer, for each packet. This is because it includes the - * 3 roaming bytes added by the mmc. - */ - newrfp = inb(RPLL(base)); - newrfp |= inb(RPLH(base)) << 8; - newrfp %= RX_SIZE; - -#ifdef DEBUG_RX_INFO - printk(KERN_DEBUG "%s: wv_packet_rcv(): i593_rfp %d stop %d newrfp %d lp->rfp %d\n", - dev->name, i593_rfp, lp->stop, newrfp, lp->rfp); -#endif - -#ifdef DEBUG_RX_ERROR - /* If no new frame pointer... */ - if(lp->overrunning || newrfp == lp->rfp) - printk(KERN_INFO "%s: wv_packet_rcv(): no new frame: i593_rfp %d stop %d newrfp %d lp->rfp %d\n", - dev->name, i593_rfp, lp->stop, newrfp, lp->rfp); -#endif - - /* Read all frames (packets) received */ - while(newrfp != lp->rfp) - { - /* A frame is composed of the packet, followed by a status word, - * the length of the frame (word) and the mmc info (SNR & qual). - * It's because the length is at the end that we can only scan - * frames backward. */ - - /* Find the first frame by skipping backwards over the frames */ - rp = newrfp; /* End of last frame */ - while(((f_start = wv_start_of_frame(dev, rp, newrfp)) != lp->rfp) && - (f_start != -1)) - rp = f_start; - - /* If we had a problem */ - if(f_start == -1) - { -#ifdef DEBUG_RX_ERROR - printk(KERN_INFO "wavelan_cs: cannot find start of frame "); - printk(" i593_rfp %d stop %d newrfp %d lp->rfp %d\n", - i593_rfp, lp->stop, newrfp, lp->rfp); -#endif - lp->rfp = rp; /* Get to the last usable frame */ - continue; - } - - /* f_start point to the beggining of the first frame received - * and rp to the beggining of the next one */ - - /* Read status & length of the frame */ - stat_ptr = (rp - 7 + RX_SIZE) % RX_SIZE; - stat_ptr = read_ringbuf(dev, stat_ptr, c, 4); - status = c[0] | (c[1] << 8); - len = c[2] | (c[3] << 8); - - /* Check status */ - if((status & RX_RCV_OK) != RX_RCV_OK) - { - dev->stats.rx_errors++; - if(status & RX_NO_SFD) - dev->stats.rx_frame_errors++; - if(status & RX_CRC_ERR) - dev->stats.rx_crc_errors++; - if(status & RX_OVRRUN) - dev->stats.rx_over_errors++; - -#ifdef DEBUG_RX_FAIL - printk(KERN_DEBUG "%s: wv_packet_rcv(): packet not received ok, status = 0x%x\n", - dev->name, status); -#endif - } - else - /* Read the packet and transmit to Linux */ - wv_packet_read(dev, f_start, len - 2); - - /* One frame has been processed, skip it */ - lp->rfp = rp; - } - - /* - * Update the frame stop register, but set it to less than - * the full 8K to allow space for 3 bytes of signal strength - * per packet. - */ - lp->stop = (i593_rfp + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE; - outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base)); - outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base)); - outb(OP1_SWIT_TO_PORT_0, LCCR(base)); - -#ifdef DEBUG_RX_TRACE - printk(KERN_DEBUG "%s: <-wv_packet_rcv()\n", dev->name); -#endif -} - -/*********************** PACKET TRANSMISSION ***********************/ -/* - * This part deal with sending packet through the wavelan - * We copy the packet to the send buffer and then issue the send - * command to the i82593. The result of this operation will be - * checked in wavelan_interrupt() - */ - -/*------------------------------------------------------------------*/ -/* - * This routine fills in the appropriate registers and memory - * locations on the WaveLAN card and starts the card off on - * the transmit. - * (called in wavelan_packet_xmit()) - */ -static void -wv_packet_write(struct net_device * dev, - void * buf, - short length) -{ - net_local * lp = netdev_priv(dev); - unsigned int base = dev->base_addr; - unsigned long flags; - int clen = length; - register u_short xmtdata_base = TX_BASE; - -#ifdef DEBUG_TX_TRACE - printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, length); -#endif - - spin_lock_irqsave(&lp->spinlock, flags); - - /* Write the length of data buffer followed by the buffer */ - outb(xmtdata_base & 0xff, PIORL(base)); - outb(((xmtdata_base >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); - outb(clen & 0xff, PIOP(base)); /* lsb */ - outb(clen >> 8, PIOP(base)); /* msb */ - - /* Send the data */ - outsb(PIOP(base), buf, clen); - - /* Indicate end of transmit chain */ - outb(OP0_NOP, PIOP(base)); - /* josullvn@cs.cmu.edu: need to send a second NOP for alignment... */ - outb(OP0_NOP, PIOP(base)); - - /* Reset the transmit DMA pointer */ - hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); - hacr_write(base, HACR_DEFAULT); - /* Send the transmit command */ - wv_82593_cmd(dev, "wv_packet_write(): transmit", - OP0_TRANSMIT, SR0_NO_RESULT); - - /* Make sure the watchdog will keep quiet for a while */ - dev->trans_start = jiffies; - - /* Keep stats up to date */ - dev->stats.tx_bytes += length; - - spin_unlock_irqrestore(&lp->spinlock, flags); - -#ifdef DEBUG_TX_INFO - wv_packet_info((u_char *) buf, length, dev->name, "wv_packet_write"); -#endif /* DEBUG_TX_INFO */ - -#ifdef DEBUG_TX_TRACE - printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name); -#endif -} - -/*------------------------------------------------------------------*/ -/* - * This routine is called when we want to send a packet (NET3 callback) - * In this routine, we check if the harware is ready to accept - * the packet. We also prevent reentrance. Then, we call the function - * to send the packet... - */ -static netdev_tx_t -wavelan_packet_xmit(struct sk_buff * skb, - struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - unsigned long flags; - -#ifdef DEBUG_TX_TRACE - printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name, - (unsigned) skb); -#endif - - /* - * Block a timer-based transmit from overlapping a previous transmit. - * In other words, prevent reentering this routine. - */ - netif_stop_queue(dev); - - /* If somebody has asked to reconfigure the controller, - * we can do it now */ - if(lp->reconfig_82593) - { - spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */ - wv_82593_config(dev); - spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */ - /* Note : the configure procedure was totally synchronous, - * so the Tx buffer is now free */ - } - - /* Check if we need some padding */ - /* Note : on wireless the propagation time is in the order of 1us, - * and we don't have the Ethernet specific requirement of beeing - * able to detect collisions, therefore in theory we don't really - * need to pad. Jean II */ - if (skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - - wv_packet_write(dev, skb->data, skb->len); - - dev_kfree_skb(skb); - -#ifdef DEBUG_TX_TRACE - printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name); -#endif - return NETDEV_TX_OK; -} - -/********************** HARDWARE CONFIGURATION **********************/ -/* - * This part do the real job of starting and configuring the hardware. - */ - -/*------------------------------------------------------------------*/ -/* - * Routine to initialize the Modem Management Controller. - * (called by wv_hw_config()) - */ -static int -wv_mmc_init(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - psa_t psa; - mmw_t m; - int configured; - int i; /* Loop counter */ - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name); -#endif - - /* Read the parameter storage area */ - psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); - - /* - * Check the first three octets of the MAC addr for the manufacturer's code. - * Note: If you get the error message below, you've got a - * non-NCR/AT&T/Lucent PCMCIA cards, see wavelan_cs.h for detail on - * how to configure your card... - */ - for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++) - if ((psa.psa_univ_mac_addr[0] == MAC_ADDRESSES[i][0]) && - (psa.psa_univ_mac_addr[1] == MAC_ADDRESSES[i][1]) && - (psa.psa_univ_mac_addr[2] == MAC_ADDRESSES[i][2])) - break; - - /* If we have not found it... */ - if (i == ARRAY_SIZE(MAC_ADDRESSES)) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_WARNING "%s: wv_mmc_init(): Invalid MAC address: %02X:%02X:%02X:...\n", - dev->name, psa.psa_univ_mac_addr[0], - psa.psa_univ_mac_addr[1], psa.psa_univ_mac_addr[2]); -#endif - return FALSE; - } - - /* Get the MAC address */ - memcpy(&dev->dev_addr[0], &psa.psa_univ_mac_addr[0], WAVELAN_ADDR_SIZE); - -#ifdef USE_PSA_CONFIG - configured = psa.psa_conf_status & 1; -#else - configured = 0; -#endif - - /* Is the PSA is not configured */ - if(!configured) - { - /* User will be able to configure NWID after (with iwconfig) */ - psa.psa_nwid[0] = 0; - psa.psa_nwid[1] = 0; - - /* As NWID is not set : no NWID checking */ - psa.psa_nwid_select = 0; - - /* Disable encryption */ - psa.psa_encryption_select = 0; - - /* Set to standard values - * 0x04 for AT, - * 0x01 for MCA, - * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document) - */ - if (psa.psa_comp_number & 1) - psa.psa_thr_pre_set = 0x01; - else - psa.psa_thr_pre_set = 0x04; - psa.psa_quality_thr = 0x03; - - /* It is configured */ - psa.psa_conf_status |= 1; - -#ifdef USE_PSA_CONFIG - /* Write the psa */ - psa_write(dev, (char *)psa.psa_nwid - (char *)&psa, - (unsigned char *)psa.psa_nwid, 4); - psa_write(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa, - (unsigned char *)&psa.psa_thr_pre_set, 1); - psa_write(dev, (char *)&psa.psa_quality_thr - (char *)&psa, - (unsigned char *)&psa.psa_quality_thr, 1); - psa_write(dev, (char *)&psa.psa_conf_status - (char *)&psa, - (unsigned char *)&psa.psa_conf_status, 1); - /* update the Wavelan checksum */ - update_psa_checksum(dev); -#endif /* USE_PSA_CONFIG */ - } - - /* Zero the mmc structure */ - memset(&m, 0x00, sizeof(m)); - - /* Copy PSA info to the mmc */ - m.mmw_netw_id_l = psa.psa_nwid[1]; - m.mmw_netw_id_h = psa.psa_nwid[0]; - - if(psa.psa_nwid_select & 1) - m.mmw_loopt_sel = 0x00; - else - m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID; - - memcpy(&m.mmw_encr_key, &psa.psa_encryption_key, - sizeof(m.mmw_encr_key)); - - if(psa.psa_encryption_select) - m.mmw_encr_enable = MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE; - else - m.mmw_encr_enable = 0; - - m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F; - m.mmw_quality_thr = psa.psa_quality_thr & 0x0F; - - /* - * Set default modem control parameters. - * See NCR document 407-0024326 Rev. A. - */ - m.mmw_jabber_enable = 0x01; - m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN; - m.mmw_ifs = 0x20; - m.mmw_mod_delay = 0x04; - m.mmw_jam_time = 0x38; - - m.mmw_des_io_invert = 0; - m.mmw_freeze = 0; - m.mmw_decay_prm = 0; - m.mmw_decay_updat_prm = 0; - - /* Write all info to mmc */ - mmc_write(base, 0, (u_char *)&m, sizeof(m)); - - /* The following code start the modem of the 2.00 frequency - * selectable cards at power on. It's not strictly needed for the - * following boots... - * The original patch was by Joe Finney for the PCMCIA driver, but - * I've cleaned it a bit and add documentation. - * Thanks to Loeke Brederveld from Lucent for the info. - */ - - /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) - * (does it work for everybody ? - especially old cards...) */ - /* Note : WFREQSEL verify that it is able to read from EEprom - * a sensible frequency (address 0x00) + that MMR_FEE_STATUS_ID - * is 0xA (Xilinx version) or 0xB (Ariadne version). - * My test is more crude but do work... */ - if(!(mmc_in(base, mmroff(0, mmr_fee_status)) & - (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) - { - /* 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... */ - m.mmw_fee_addr = 0x0F; - m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; - mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m, - (unsigned char *)&m.mmw_fee_ctrl, 2); - - /* Wait until the download is finished */ - fee_wait(base, 100, 100); - -#ifdef DEBUG_CONFIG_INFO - /* The frequency was in the last word downloaded... */ - mmc_read(base, (char *)&m.mmw_fee_data_l - (char *)&m, - (unsigned char *)&m.mmw_fee_data_l, 2); - - /* Print some info for the user */ - printk(KERN_DEBUG "%s: Wavelan 2.00 recognised (frequency select) : Current frequency = %ld\n", - dev->name, - ((m.mmw_fee_data_h << 4) | - (m.mmw_fee_data_l >> 4)) * 5 / 2 + 24000L); -#endif - - /* We must now download the power adjust value (gain) to - * the synthetisers (from the EEprom - area 7 - DAC) */ - m.mmw_fee_addr = 0x61; - m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; - mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m, - (unsigned char *)&m.mmw_fee_ctrl, 2); - - /* Wait until the download is finished */ - } /* if 2.00 card */ - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name); -#endif - return TRUE; -} - -/*------------------------------------------------------------------*/ -/* - * Routine to gracefully turn off reception, and wait for any commands - * to complete. - * (called in wv_ru_start() and wavelan_close() and wavelan_event()) - */ -static int -wv_ru_stop(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - unsigned long flags; - int status; - int spin; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_ru_stop()\n", dev->name); -#endif - - spin_lock_irqsave(&lp->spinlock, flags); - - /* First, send the LAN controller a stop receive command */ - wv_82593_cmd(dev, "wv_graceful_shutdown(): stop-rcv", - OP0_STOP_RCV, SR0_NO_RESULT); - - /* Then, spin until the receive unit goes idle */ - spin = 300; - do - { - udelay(10); - outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); - status = inb(LCSR(base)); - } - while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_IDLE) && (spin-- > 0)); - - /* Now, spin until the chip finishes executing its current command */ - do - { - udelay(10); - outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); - status = inb(LCSR(base)); - } - while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0)); - - spin_unlock_irqrestore(&lp->spinlock, flags); - - /* If there was a problem */ - if(spin <= 0) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_INFO "%s: wv_ru_stop(): The chip doesn't want to stop...\n", - dev->name); -#endif - return FALSE; - } - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_ru_stop()\n", dev->name); -#endif - return TRUE; -} /* wv_ru_stop */ - -/*------------------------------------------------------------------*/ -/* - * This routine starts the receive unit running. First, it checks if - * the card is actually ready. Then the card is instructed to receive - * packets again. - * (called in wv_hw_reset() & wavelan_open()) - */ -static int -wv_ru_start(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - unsigned long flags; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name); -#endif - - /* - * We need to start from a quiescent state. To do so, we could check - * if the card is already running, but instead we just try to shut - * it down. First, we disable reception (in case it was already enabled). - */ - if(!wv_ru_stop(dev)) - return FALSE; - - spin_lock_irqsave(&lp->spinlock, flags); - - /* Now we know that no command is being executed. */ - - /* Set the receive frame pointer and stop pointer */ - lp->rfp = 0; - outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base)); - - /* Reset ring management. This sets the receive frame pointer to 1 */ - outb(OP1_RESET_RING_MNGMT, LCCR(base)); - -#if 0 - /* XXX the i82593 manual page 6-4 seems to indicate that the stop register - should be set as below */ - /* outb(CR1_STOP_REG_UPDATE|((RX_SIZE - 0x40)>> RX_SIZE_SHIFT),LCCR(base));*/ -#elif 0 - /* but I set it 0 instead */ - lp->stop = 0; -#else - /* but I set it to 3 bytes per packet less than 8K */ - lp->stop = (0 + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE; -#endif - outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base)); - outb(OP1_INT_ENABLE, LCCR(base)); - outb(OP1_SWIT_TO_PORT_0, LCCR(base)); - - /* Reset receive DMA pointer */ - hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); - hacr_write_slow(base, HACR_DEFAULT); - - /* Receive DMA on channel 1 */ - wv_82593_cmd(dev, "wv_ru_start(): rcv-enable", - CR0_CHNL | OP0_RCV_ENABLE, SR0_NO_RESULT); - -#ifdef DEBUG_I82593_SHOW - { - int status; - int opri; - int spin = 10000; - - /* spin until the chip starts receiving */ - do - { - outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); - status = inb(LCSR(base)); - if(spin-- <= 0) - break; - } - while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_ACTIVE) && - ((status & SR3_RCV_STATE_MASK) != SR3_RCV_READY)); - printk(KERN_DEBUG "rcv status is 0x%x [i:%d]\n", - (status & SR3_RCV_STATE_MASK), i); - } -#endif - - spin_unlock_irqrestore(&lp->spinlock, flags); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name); -#endif - return TRUE; -} - -/*------------------------------------------------------------------*/ -/* - * This routine does a standard config of the WaveLAN controller (i82593). - * In the ISA driver, this is integrated in wavelan_hardware_reset() - * (called by wv_hw_config(), wv_82593_reconfig() & wavelan_packet_xmit()) - */ -static int -wv_82593_config(struct net_device * dev) -{ - unsigned int base = dev->base_addr; - net_local * lp = netdev_priv(dev); - struct i82593_conf_block cfblk; - int ret = TRUE; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_82593_config()\n", dev->name); -#endif - - /* Create & fill i82593 config block - * - * Now conform to Wavelan document WCIN085B - */ - memset(&cfblk, 0x00, sizeof(struct i82593_conf_block)); - cfblk.d6mod = FALSE; /* Run in i82593 advanced mode */ - cfblk.fifo_limit = 5; /* = 56 B rx and 40 B tx fifo thresholds */ - cfblk.forgnesi = FALSE; /* 0=82C501, 1=AMD7992B compatibility */ - cfblk.fifo_32 = 1; - cfblk.throttle_enb = FALSE; - cfblk.contin = TRUE; /* enable continuous mode */ - cfblk.cntrxint = FALSE; /* enable continuous mode receive interrupts */ - cfblk.addr_len = WAVELAN_ADDR_SIZE; - cfblk.acloc = TRUE; /* Disable source addr insertion by i82593 */ - cfblk.preamb_len = 0; /* 2 bytes preamble (SFD) */ - cfblk.loopback = FALSE; - cfblk.lin_prio = 0; /* conform to 802.3 backoff algorithm */ - cfblk.exp_prio = 5; /* conform to 802.3 backoff algorithm */ - cfblk.bof_met = 1; /* conform to 802.3 backoff algorithm */ - cfblk.ifrm_spc = 0x20 >> 4; /* 32 bit times interframe spacing */ - cfblk.slottim_low = 0x20 >> 5; /* 32 bit times slot time */ - cfblk.slottim_hi = 0x0; - cfblk.max_retr = 15; - cfblk.prmisc = ((lp->promiscuous) ? TRUE: FALSE); /* Promiscuous mode */ - cfblk.bc_dis = FALSE; /* Enable broadcast reception */ - cfblk.crs_1 = TRUE; /* Transmit without carrier sense */ - cfblk.nocrc_ins = FALSE; /* i82593 generates CRC */ - cfblk.crc_1632 = FALSE; /* 32-bit Autodin-II CRC */ - cfblk.crs_cdt = FALSE; /* CD not to be interpreted as CS */ - cfblk.cs_filter = 0; /* CS is recognized immediately */ - cfblk.crs_src = FALSE; /* External carrier sense */ - cfblk.cd_filter = 0; /* CD is recognized immediately */ - cfblk.min_fr_len = ETH_ZLEN >> 2; /* Minimum frame length 64 bytes */ - cfblk.lng_typ = FALSE; /* Length field > 1500 = type field */ - cfblk.lng_fld = TRUE; /* Disable 802.3 length field check */ - cfblk.rxcrc_xf = TRUE; /* Don't transfer CRC to memory */ - cfblk.artx = TRUE; /* Disable automatic retransmission */ - cfblk.sarec = TRUE; /* Disable source addr trig of CD */ - cfblk.tx_jabber = TRUE; /* Disable jabber jam sequence */ - cfblk.hash_1 = FALSE; /* Use bits 0-5 in mc address hash */ - cfblk.lbpkpol = TRUE; /* Loopback pin active high */ - cfblk.fdx = FALSE; /* Disable full duplex operation */ - cfblk.dummy_6 = 0x3f; /* all ones */ - cfblk.mult_ia = FALSE; /* No multiple individual addresses */ - cfblk.dis_bof = FALSE; /* Disable the backoff algorithm ?! */ - cfblk.dummy_1 = TRUE; /* set to 1 */ - cfblk.tx_ifs_retrig = 3; /* Hmm... Disabled */ -#ifdef MULTICAST_ALL - cfblk.mc_all = (lp->allmulticast ? TRUE: FALSE); /* Allow all multicasts */ -#else - cfblk.mc_all = FALSE; /* No multicast all mode */ -#endif - cfblk.rcv_mon = 0; /* Monitor mode disabled */ - cfblk.frag_acpt = TRUE; /* Do not accept fragments */ - cfblk.tstrttrs = FALSE; /* No start transmission threshold */ - cfblk.fretx = TRUE; /* FIFO automatic retransmission */ - cfblk.syncrqs = FALSE; /* Synchronous DRQ deassertion... */ - cfblk.sttlen = TRUE; /* 6 byte status registers */ - cfblk.rx_eop = TRUE; /* Signal EOP on packet reception */ - cfblk.tx_eop = TRUE; /* Signal EOP on packet transmission */ - cfblk.rbuf_size = RX_SIZE>>11; /* Set receive buffer size */ - cfblk.rcvstop = TRUE; /* Enable Receive Stop Register */ - -#ifdef DEBUG_I82593_SHOW - print_hex_dump(KERN_DEBUG, "wavelan_cs: config block: ", DUMP_PREFIX_NONE, - 16, 1, &cfblk, sizeof(struct i82593_conf_block), false); -#endif - - /* Copy the config block to the i82593 */ - outb(TX_BASE & 0xff, PIORL(base)); - outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); - outb(sizeof(struct i82593_conf_block) & 0xff, PIOP(base)); /* lsb */ - outb(sizeof(struct i82593_conf_block) >> 8, PIOP(base)); /* msb */ - outsb(PIOP(base), (char *) &cfblk, sizeof(struct i82593_conf_block)); - - /* reset transmit DMA pointer */ - hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); - hacr_write(base, HACR_DEFAULT); - if(!wv_82593_cmd(dev, "wv_82593_config(): configure", - OP0_CONFIGURE, SR0_CONFIGURE_DONE)) - ret = FALSE; - - /* Initialize adapter's ethernet MAC address */ - outb(TX_BASE & 0xff, PIORL(base)); - outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); - outb(WAVELAN_ADDR_SIZE, PIOP(base)); /* byte count lsb */ - outb(0, PIOP(base)); /* byte count msb */ - outsb(PIOP(base), &dev->dev_addr[0], WAVELAN_ADDR_SIZE); - - /* reset transmit DMA pointer */ - hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); - hacr_write(base, HACR_DEFAULT); - if(!wv_82593_cmd(dev, "wv_82593_config(): ia-setup", - OP0_IA_SETUP, SR0_IA_SETUP_DONE)) - ret = FALSE; - -#ifdef WAVELAN_ROAMING - /* If roaming is enabled, join the "Beacon Request" multicast group... */ - /* But only if it's not in there already! */ - if(do_roaming) - dev_mc_add(dev,WAVELAN_BEACON_ADDRESS, WAVELAN_ADDR_SIZE, 1); -#endif /* WAVELAN_ROAMING */ - - /* If any multicast address to set */ - if(lp->mc_count) - { - struct dev_mc_list * dmi; - int addrs_len = WAVELAN_ADDR_SIZE * lp->mc_count; - -#ifdef DEBUG_CONFIG_INFO - printk(KERN_DEBUG "%s: wv_hw_config(): set %d multicast addresses:\n", - dev->name, lp->mc_count); - for(dmi=dev->mc_list; dmi; dmi=dmi->next) - printk(KERN_DEBUG " %pM\n", dmi->dmi_addr); -#endif - - /* Initialize adapter's ethernet multicast addresses */ - outb(TX_BASE & 0xff, PIORL(base)); - outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); - outb(addrs_len & 0xff, PIOP(base)); /* byte count lsb */ - outb((addrs_len >> 8), PIOP(base)); /* byte count msb */ - for(dmi=dev->mc_list; dmi; dmi=dmi->next) - outsb(PIOP(base), dmi->dmi_addr, dmi->dmi_addrlen); - - /* reset transmit DMA pointer */ - hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); - hacr_write(base, HACR_DEFAULT); - if(!wv_82593_cmd(dev, "wv_82593_config(): mc-setup", - OP0_MC_SETUP, SR0_MC_SETUP_DONE)) - ret = FALSE; - lp->mc_count = dev->mc_count; /* remember to avoid repeated reset */ - } - - /* Job done, clear the flag */ - lp->reconfig_82593 = FALSE; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_82593_config()\n", dev->name); -#endif - return(ret); -} - -/*------------------------------------------------------------------*/ -/* - * Read the Access Configuration Register, perform a software reset, - * and then re-enable the card's software. - * - * If I understand correctly : reset the pcmcia interface of the - * wavelan. - * (called by wv_config()) - */ -static int -wv_pcmcia_reset(struct net_device * dev) -{ - int i; - conf_reg_t reg = { 0, CS_READ, CISREG_COR, 0 }; - struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_pcmcia_reset()\n", dev->name); -#endif - - i = pcmcia_access_configuration_register(link, ®); - if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); - return FALSE; - } - -#ifdef DEBUG_CONFIG_INFO - printk(KERN_DEBUG "%s: wavelan_pcmcia_reset(): Config reg is 0x%x\n", - dev->name, (u_int) reg.Value); -#endif - - reg.Action = CS_WRITE; - reg.Value = reg.Value | COR_SW_RESET; - i = pcmcia_access_configuration_register(link, ®); - if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); - return FALSE; - } - - reg.Action = CS_WRITE; - reg.Value = COR_LEVEL_IRQ | COR_CONFIG; - i = pcmcia_access_configuration_register(link, ®); - if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); - return FALSE; - } - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_pcmcia_reset()\n", dev->name); -#endif - return TRUE; -} - -/*------------------------------------------------------------------*/ -/* - * wavelan_hw_config() is called after a CARD_INSERTION event is - * received, to configure the wavelan hardware. - * Note that the reception will be enabled in wavelan->open(), so the - * device is configured but idle... - * Performs the following actions: - * 1. A pcmcia software reset (using wv_pcmcia_reset()) - * 2. A power reset (reset DMA) - * 3. Reset the LAN controller - * 4. Initialize the radio modem (using wv_mmc_init) - * 5. Configure LAN controller (using wv_82593_config) - * 6. Perform a diagnostic on the LAN controller - * (called by wavelan_event() & wv_hw_reset()) - */ -static int -wv_hw_config(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - unsigned int base = dev->base_addr; - unsigned long flags; - int ret = FALSE; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_hw_config()\n", dev->name); -#endif - - /* compile-time check the sizes of structures */ - BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE); - BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE); - BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE); - - /* Reset the pcmcia interface */ - if(wv_pcmcia_reset(dev) == FALSE) - return FALSE; - - /* Disable interrupts */ - spin_lock_irqsave(&lp->spinlock, flags); - - /* Disguised goto ;-) */ - do - { - /* Power UP the module + reset the modem + reset host adapter - * (in fact, reset DMA channels) */ - hacr_write_slow(base, HACR_RESET); - hacr_write(base, HACR_DEFAULT); - - /* Check if the module has been powered up... */ - if(hasr_read(base) & HASR_NO_CLK) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_WARNING "%s: wv_hw_config(): modem not connected or not a wavelan card\n", - dev->name); -#endif - break; - } - - /* initialize the modem */ - if(wv_mmc_init(dev) == FALSE) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_WARNING "%s: wv_hw_config(): Can't configure the modem\n", - dev->name); -#endif - break; - } - - /* reset the LAN controller (i82593) */ - outb(OP0_RESET, LCCR(base)); - mdelay(1); /* A bit crude ! */ - - /* Initialize the LAN controller */ - if(wv_82593_config(dev) == FALSE) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_INFO "%s: wv_hw_config(): i82593 init failed\n", - dev->name); -#endif - break; - } - - /* Diagnostic */ - if(wv_diag(dev) == FALSE) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_INFO "%s: wv_hw_config(): i82593 diagnostic failed\n", - dev->name); -#endif - break; - } - - /* - * insert code for loopback test here - */ - - /* The device is now configured */ - lp->configured = 1; - ret = TRUE; - } - while(0); - - /* Re-enable interrupts */ - spin_unlock_irqrestore(&lp->spinlock, flags); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_hw_config()\n", dev->name); -#endif - return(ret); -} - -/*------------------------------------------------------------------*/ -/* - * Totally reset the wavelan and restart it. - * Performs the following actions: - * 1. Call wv_hw_config() - * 2. Start the LAN controller's receive unit - * (called by wavelan_event(), wavelan_watchdog() and wavelan_open()) - */ -static void -wv_hw_reset(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: ->wv_hw_reset()\n", dev->name); -#endif - - lp->nresets++; - lp->configured = 0; - - /* Call wv_hw_config() for most of the reset & init stuff */ - if(wv_hw_config(dev) == FALSE) - return; - - /* start receive unit */ - wv_ru_start(dev); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name); -#endif -} - -/*------------------------------------------------------------------*/ -/* - * wv_pcmcia_config() is called after a CARD_INSERTION event is - * received, to configure the PCMCIA socket, and to make the ethernet - * device available to the system. - * (called by wavelan_event()) - */ -static int -wv_pcmcia_config(struct pcmcia_device * link) -{ - struct net_device * dev = (struct net_device *) link->priv; - int i; - win_req_t req; - memreq_t mem; - net_local * lp = netdev_priv(dev); - - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "->wv_pcmcia_config(0x%p)\n", link); -#endif - - do - { - i = pcmcia_request_io(link, &link->io); - if (i != 0) - { - cs_error(link, RequestIO, i); - break; - } - - /* - * Now allocate an interrupt line. Note that this does not - * actually assign a handler to the interrupt. - */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) - { - cs_error(link, RequestIRQ, i); - break; - } - - /* - * This actually configures the PCMCIA socket -- setting up - * the I/O windows and the interrupt mapping. - */ - link->conf.ConfigIndex = 1; - i = pcmcia_request_configuration(link, &link->conf); - if (i != 0) - { - cs_error(link, RequestConfiguration, i); - break; - } - - /* - * Allocate a small memory window. Note that the struct pcmcia_device - * structure provides space for one window handle -- if your - * device needs several windows, you'll need to keep track of - * the handles in your private data structure, link->priv. - */ - req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; - req.Base = req.Size = 0; - req.AccessSpeed = mem_speed; - i = pcmcia_request_window(&link, &req, &link->win); - if (i != 0) - { - cs_error(link, RequestWindow, i); - break; - } - - lp->mem = ioremap(req.Base, req.Size); - dev->mem_start = (u_long)lp->mem; - dev->mem_end = dev->mem_start + req.Size; - - mem.CardOffset = 0; mem.Page = 0; - i = pcmcia_map_mem_page(link->win, &mem); - if (i != 0) - { - cs_error(link, MapMemPage, i); - break; - } - - /* Feed device with this info... */ - dev->irq = link->irq.AssignedIRQ; - dev->base_addr = link->io.BasePort1; - netif_start_queue(dev); - -#ifdef DEBUG_CONFIG_INFO - printk(KERN_DEBUG "wv_pcmcia_config: MEMSTART %p IRQ %d IOPORT 0x%x\n", - lp->mem, dev->irq, (u_int) dev->base_addr); -#endif - - SET_NETDEV_DEV(dev, &handle_to_dev(link)); - i = register_netdev(dev); - if(i != 0) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_INFO "wv_pcmcia_config(): register_netdev() failed\n"); -#endif - break; - } - } - while(0); /* Humm... Disguised goto !!! */ - - /* If any step failed, release any partially configured state */ - if(i != 0) - { - wv_pcmcia_release(link); - return FALSE; - } - - strcpy(((net_local *) netdev_priv(dev))->node.dev_name, dev->name); - link->dev_node = &((net_local *) netdev_priv(dev))->node; - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "<-wv_pcmcia_config()\n"); -#endif - return TRUE; -} - -/*------------------------------------------------------------------*/ -/* - * After a card is removed, wv_pcmcia_release() will unregister the net - * device, and release the PCMCIA configuration. If the device is - * still open, this will be postponed until it is closed. - */ -static void -wv_pcmcia_release(struct pcmcia_device *link) -{ - struct net_device * dev = (struct net_device *) link->priv; - net_local * lp = netdev_priv(dev); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: -> wv_pcmcia_release(0x%p)\n", dev->name, link); -#endif - - iounmap(lp->mem); - pcmcia_disable_device(link); - -#ifdef DEBUG_CONFIG_TRACE - printk(KERN_DEBUG "%s: <- wv_pcmcia_release()\n", dev->name); -#endif -} - -/************************ INTERRUPT HANDLING ************************/ - -/* - * This function is the interrupt handler for the WaveLAN card. This - * routine will be called whenever: - * 1. A packet is received. - * 2. A packet has successfully been transferred and the unit is - * ready to transmit another packet. - * 3. A command has completed execution. - */ -static irqreturn_t -wavelan_interrupt(int irq, - void * dev_id) -{ - struct net_device * dev = dev_id; - net_local * lp; - unsigned int base; - int status0; - u_int tx_status; - -#ifdef DEBUG_INTERRUPT_TRACE - printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name); -#endif - - lp = netdev_priv(dev); - base = dev->base_addr; - -#ifdef DEBUG_INTERRUPT_INFO - /* Check state of our spinlock (it should be cleared) */ - if(spin_is_locked(&lp->spinlock)) - printk(KERN_DEBUG - "%s: wavelan_interrupt(): spinlock is already locked !!!\n", - dev->name); -#endif - - /* Prevent reentrancy. We need to do that because we may have - * multiple interrupt handler running concurently. - * It is safe because interrupts are disabled before aquiring - * the spinlock. */ - spin_lock(&lp->spinlock); - - /* Treat all pending interrupts */ - while(1) - { - /* ---------------- INTERRUPT CHECKING ---------------- */ - /* - * Look for the interrupt and verify the validity - */ - outb(CR0_STATUS_0 | OP0_NOP, LCCR(base)); - status0 = inb(LCSR(base)); - -#ifdef DEBUG_INTERRUPT_INFO - printk(KERN_DEBUG "status0 0x%x [%s => 0x%x]", status0, - (status0&SR0_INTERRUPT)?"int":"no int",status0&~SR0_INTERRUPT); - if(status0&SR0_INTERRUPT) - { - printk(" [%s => %d]\n", (status0 & SR0_CHNL) ? "chnl" : - ((status0 & SR0_EXECUTION) ? "cmd" : - ((status0 & SR0_RECEPTION) ? "recv" : "unknown")), - (status0 & SR0_EVENT_MASK)); - } - else - printk("\n"); -#endif - - /* Return if no actual interrupt from i82593 (normal exit) */ - if(!(status0 & SR0_INTERRUPT)) - break; - - /* If interrupt is both Rx and Tx or none... - * This code in fact is there to catch the spurious interrupt - * when you remove the wavelan pcmcia card from the socket */ - if(((status0 & SR0_BOTH_RX_TX) == SR0_BOTH_RX_TX) || - ((status0 & SR0_BOTH_RX_TX) == 0x0)) - { -#ifdef DEBUG_INTERRUPT_INFO - printk(KERN_INFO "%s: wv_interrupt(): bogus interrupt (or from dead card) : %X\n", - dev->name, status0); -#endif - /* Acknowledge the interrupt */ - outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); - break; - } - - /* ----------------- RECEIVING PACKET ----------------- */ - /* - * When the wavelan signal the reception of a new packet, - * we call wv_packet_rcv() to copy if from the buffer and - * send it to NET3 - */ - if(status0 & SR0_RECEPTION) - { -#ifdef DEBUG_INTERRUPT_INFO - printk(KERN_DEBUG "%s: wv_interrupt(): receive\n", dev->name); -#endif - - if((status0 & SR0_EVENT_MASK) == SR0_STOP_REG_HIT) - { -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "%s: wv_interrupt(): receive buffer overflow\n", - dev->name); -#endif - dev->stats.rx_over_errors++; - lp->overrunning = 1; - } - - /* Get the packet */ - wv_packet_rcv(dev); - lp->overrunning = 0; - - /* Acknowledge the interrupt */ - outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); - continue; - } - - /* ---------------- COMMAND COMPLETION ---------------- */ - /* - * Interrupts issued when the i82593 has completed a command. - * Most likely : transmission done - */ - - /* If a transmission has been done */ - if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_DONE || - (status0 & SR0_EVENT_MASK) == SR0_RETRANSMIT_DONE || - (status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE) - { -#ifdef DEBUG_TX_ERROR - if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE) - printk(KERN_INFO "%s: wv_interrupt(): packet transmitted without CRC.\n", - dev->name); -#endif - - /* Get transmission status */ - tx_status = inb(LCSR(base)); - tx_status |= (inb(LCSR(base)) << 8); -#ifdef DEBUG_INTERRUPT_INFO - printk(KERN_DEBUG "%s: wv_interrupt(): transmission done\n", - dev->name); - { - u_int rcv_bytes; - u_char status3; - rcv_bytes = inb(LCSR(base)); - rcv_bytes |= (inb(LCSR(base)) << 8); - status3 = inb(LCSR(base)); - printk(KERN_DEBUG "tx_status 0x%02x rcv_bytes 0x%02x status3 0x%x\n", - tx_status, rcv_bytes, (u_int) status3); - } -#endif - /* Check for possible errors */ - if((tx_status & TX_OK) != TX_OK) - { - dev->stats.tx_errors++; - - if(tx_status & TX_FRTL) - { -#ifdef DEBUG_TX_ERROR - printk(KERN_INFO "%s: wv_interrupt(): frame too long\n", - dev->name); -#endif - } - if(tx_status & TX_UND_RUN) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): DMA underrun\n", - dev->name); -#endif - dev->stats.tx_aborted_errors++; - } - if(tx_status & TX_LOST_CTS) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): no CTS\n", dev->name); -#endif - dev->stats.tx_carrier_errors++; - } - if(tx_status & TX_LOST_CRS) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): no carrier\n", - dev->name); -#endif - dev->stats.tx_carrier_errors++; - } - if(tx_status & TX_HRT_BEAT) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): heart beat\n", dev->name); -#endif - dev->stats.tx_heartbeat_errors++; - } - if(tx_status & TX_DEFER) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): channel jammed\n", - dev->name); -#endif - } - /* Ignore late collisions since they're more likely to happen - * here (the WaveLAN design prevents the LAN controller from - * receiving while it is transmitting). We take action only when - * the maximum retransmit attempts is exceeded. - */ - if(tx_status & TX_COLL) - { - if(tx_status & TX_MAX_COL) - { -#ifdef DEBUG_TX_FAIL - printk(KERN_DEBUG "%s: wv_interrupt(): channel congestion\n", - dev->name); -#endif - if(!(tx_status & TX_NCOL_MASK)) - { - dev->stats.collisions += 0x10; - } - } - } - } /* if(!(tx_status & TX_OK)) */ - - dev->stats.collisions += (tx_status & TX_NCOL_MASK); - dev->stats.tx_packets++; - - netif_wake_queue(dev); - outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */ - } - else /* if interrupt = transmit done or retransmit done */ - { -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "wavelan_cs: unknown interrupt, status0 = %02x\n", - status0); -#endif - outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */ - } - } /* while(1) */ - - spin_unlock(&lp->spinlock); - -#ifdef DEBUG_INTERRUPT_TRACE - printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name); -#endif - - /* We always return IRQ_HANDLED, because we will receive empty - * interrupts under normal operations. Anyway, it doesn't matter - * as we are dealing with an ISA interrupt that can't be shared. - * - * Explanation : under heavy receive, the following happens : - * ->wavelan_interrupt() - * (status0 & SR0_INTERRUPT) != 0 - * ->wv_packet_rcv() - * (status0 & SR0_INTERRUPT) != 0 - * ->wv_packet_rcv() - * (status0 & SR0_INTERRUPT) == 0 // i.e. no more event - * <-wavelan_interrupt() - * ->wavelan_interrupt() - * (status0 & SR0_INTERRUPT) == 0 // i.e. empty interrupt - * <-wavelan_interrupt() - * Jean II */ - return IRQ_HANDLED; -} /* wv_interrupt */ - -/*------------------------------------------------------------------*/ -/* - * Watchdog: when we start a transmission, a timer is set for us in the - * kernel. If the transmission completes, this timer is disabled. If - * the timer expires, we are called and we try to unlock the hardware. - * - * Note : This watchdog is move clever than the one in the ISA driver, - * because it try to abort the current command before reseting - * everything... - * On the other hand, it's a bit simpler, because we don't have to - * deal with the multiple Tx buffers... - */ -static void -wavelan_watchdog(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - unsigned int base = dev->base_addr; - unsigned long flags; - int aborted = FALSE; - -#ifdef DEBUG_INTERRUPT_TRACE - printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name); -#endif - -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n", - dev->name); -#endif - - spin_lock_irqsave(&lp->spinlock, flags); - - /* Ask to abort the current command */ - outb(OP0_ABORT, LCCR(base)); - - /* Wait for the end of the command (a bit hackish) */ - if(wv_82593_cmd(dev, "wavelan_watchdog(): abort", - OP0_NOP | CR0_STATUS_3, SR0_EXECUTION_ABORTED)) - aborted = TRUE; - - /* Release spinlock here so that wv_hw_reset() can grab it */ - spin_unlock_irqrestore(&lp->spinlock, flags); - - /* Check if we were successful in aborting it */ - if(!aborted) - { - /* It seem that it wasn't enough */ -#ifdef DEBUG_INTERRUPT_ERROR - printk(KERN_INFO "%s: wavelan_watchdog: abort failed, trying reset\n", - dev->name); -#endif - wv_hw_reset(dev); - } - -#ifdef DEBUG_PSA_SHOW - { - psa_t psa; - psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); - wv_psa_show(&psa); - } -#endif -#ifdef DEBUG_MMC_SHOW - wv_mmc_show(dev); -#endif -#ifdef DEBUG_I82593_SHOW - wv_ru_show(dev); -#endif - - /* We are no more waiting for something... */ - netif_wake_queue(dev); - -#ifdef DEBUG_INTERRUPT_TRACE - printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name); -#endif -} - -/********************* CONFIGURATION CALLBACKS *********************/ -/* - * Here are the functions called by the pcmcia package (cardmgr) and - * linux networking (NET3) for initialization, configuration and - * deinstallations of the Wavelan Pcmcia Hardware. - */ - -/*------------------------------------------------------------------*/ -/* - * Configure and start up the WaveLAN PCMCIA adaptor. - * Called by NET3 when it "open" the device. - */ -static int -wavelan_open(struct net_device * dev) -{ - net_local * lp = netdev_priv(dev); - struct pcmcia_device * link = lp->link; - unsigned int base = dev->base_addr; - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name, - (unsigned int) dev); -#endif - - /* Check if the modem is powered up (wavelan_close() power it down */ - if(hasr_read(base) & HASR_NO_CLK) - { - /* Power up (power up time is 250us) */ - hacr_write(base, HACR_DEFAULT); - - /* Check if the module has been powered up... */ - if(hasr_read(base) & HASR_NO_CLK) - { -#ifdef DEBUG_CONFIG_ERRORS - printk(KERN_WARNING "%s: wavelan_open(): modem not connected\n", - dev->name); -#endif - return FALSE; - } - } - - /* Start reception and declare the driver ready */ - if(!lp->configured) - return FALSE; - if(!wv_ru_start(dev)) - wv_hw_reset(dev); /* If problem : reset */ - netif_start_queue(dev); - - /* Mark the device as used */ - link->open++; - -#ifdef WAVELAN_ROAMING - if(do_roaming) - wv_roam_init(dev); -#endif /* WAVELAN_ROAMING */ - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name); -#endif - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * Shutdown the WaveLAN PCMCIA adaptor. - * Called by NET3 when it "close" the device. - */ -static int -wavelan_close(struct net_device * dev) -{ - struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link; - unsigned int base = dev->base_addr; - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name, - (unsigned int) dev); -#endif - - /* If the device isn't open, then nothing to do */ - if(!link->open) - { -#ifdef DEBUG_CONFIG_INFO - printk(KERN_DEBUG "%s: wavelan_close(): device not open\n", dev->name); -#endif - return 0; - } - -#ifdef WAVELAN_ROAMING - /* Cleanup of roaming stuff... */ - if(do_roaming) - wv_roam_cleanup(dev); -#endif /* WAVELAN_ROAMING */ - - link->open--; - - /* If the card is still present */ - if(netif_running(dev)) - { - netif_stop_queue(dev); - - /* Stop receiving new messages and wait end of transmission */ - wv_ru_stop(dev); - - /* Power down the module */ - hacr_write(base, HACR_DEFAULT & (~HACR_PWR_STAT)); - } - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name); -#endif - return 0; -} - -static const struct net_device_ops wavelan_netdev_ops = { - .ndo_open = wavelan_open, - .ndo_stop = wavelan_close, - .ndo_start_xmit = wavelan_packet_xmit, - .ndo_set_multicast_list = wavelan_set_multicast_list, -#ifdef SET_MAC_ADDRESS - .ndo_set_mac_address = wavelan_set_mac_address, -#endif - .ndo_tx_timeout = wavelan_watchdog, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, -}; - -/*------------------------------------------------------------------*/ -/* - * wavelan_attach() creates an "instance" of the driver, allocating - * local data structures for one device (one interface). The device - * is registered with Card Services. - * - * The dev_link structure is initialized, but we don't actually - * configure the card at this point -- we wait until we receive a - * card insertion event. - */ -static int -wavelan_probe(struct pcmcia_device *p_dev) -{ - struct net_device * dev; /* Interface generic data */ - net_local * lp; /* Interface specific data */ - int ret; - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "-> wavelan_attach()\n"); -#endif - - /* The io structure describes IO port mapping */ - p_dev->io.NumPorts1 = 8; - p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; - p_dev->io.IOAddrLines = 3; - - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; - p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID; - p_dev->irq.Handler = wavelan_interrupt; - - /* General socket configuration */ - p_dev->conf.Attributes = CONF_ENABLE_IRQ; - p_dev->conf.IntType = INT_MEMORY_AND_IO; - - /* Allocate the generic data structure */ - dev = alloc_etherdev(sizeof(net_local)); - if (!dev) - return -ENOMEM; - - p_dev->priv = p_dev->irq.Instance = dev; - - lp = netdev_priv(dev); - - /* Init specific data */ - lp->configured = 0; - lp->reconfig_82593 = FALSE; - lp->nresets = 0; - /* Multicast stuff */ - lp->promiscuous = 0; - lp->allmulticast = 0; - lp->mc_count = 0; - - /* Init spinlock */ - spin_lock_init(&lp->spinlock); - - /* back links */ - lp->dev = dev; - - /* wavelan NET3 callbacks */ - dev->netdev_ops = &wavelan_netdev_ops; - dev->watchdog_timeo = WATCHDOG_JIFFIES; - SET_ETHTOOL_OPS(dev, &ops); - - dev->wireless_handlers = &wavelan_handler_def; - lp->wireless_data.spy_data = &lp->spy_data; - dev->wireless_data = &lp->wireless_data; - - /* Other specific data */ - dev->mtu = WAVELAN_MTU; - - ret = wv_pcmcia_config(p_dev); - if (ret) - return ret; - - ret = wv_hw_config(dev); - if (ret) { - dev->irq = 0; - pcmcia_disable_device(p_dev); - return ret; - } - - wv_init_info(dev); - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "<- wavelan_attach()\n"); -#endif - - return 0; -} - -/*------------------------------------------------------------------*/ -/* - * This deletes a driver "instance". The device is de-registered with - * Card Services. If it has been released, all local data structures - * are freed. Otherwise, the structures will be freed when the device - * is released. - */ -static void -wavelan_detach(struct pcmcia_device *link) -{ -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "-> wavelan_detach(0x%p)\n", link); -#endif - - /* Some others haven't done their job : give them another chance */ - wv_pcmcia_release(link); - - /* Free pieces */ - if(link->priv) - { - struct net_device * dev = (struct net_device *) link->priv; - - /* Remove ourselves from the kernel list of ethernet devices */ - /* Warning : can't be called from interrupt, timer or wavelan_close() */ - if (link->dev_node) - unregister_netdev(dev); - link->dev_node = NULL; - ((net_local *)netdev_priv(dev))->link = NULL; - ((net_local *)netdev_priv(dev))->dev = NULL; - free_netdev(dev); - } - -#ifdef DEBUG_CALLBACK_TRACE - printk(KERN_DEBUG "<- wavelan_detach()\n"); -#endif -} - -static int wavelan_suspend(struct pcmcia_device *link) -{ - struct net_device * dev = (struct net_device *) link->priv; - - /* NB: wavelan_close will be called, but too late, so we are - * obliged to close nicely the wavelan here. David, could you - * close the device before suspending them ? And, by the way, - * could you, on resume, add a "route add -net ..." after the - * ifconfig up ? Thanks... */ - - /* Stop receiving new messages and wait end of transmission */ - wv_ru_stop(dev); - - if (link->open) - netif_device_detach(dev); - - /* Power down the module */ - hacr_write(dev->base_addr, HACR_DEFAULT & (~HACR_PWR_STAT)); - - return 0; -} - -static int wavelan_resume(struct pcmcia_device *link) -{ - struct net_device * dev = (struct net_device *) link->priv; - - if (link->open) { - wv_hw_reset(dev); - netif_device_attach(dev); - } - - return 0; -} - - -static struct pcmcia_device_id wavelan_ids[] = { - PCMCIA_DEVICE_PROD_ID12("AT&T","WaveLAN/PCMCIA", 0xe7c5affd, 0x1bc50975), - PCMCIA_DEVICE_PROD_ID12("Digital", "RoamAbout/DS", 0x9999ab35, 0x00d05e06), - PCMCIA_DEVICE_PROD_ID12("Lucent Technologies", "WaveLAN/PCMCIA", 0x23eb9949, 0x1bc50975), - PCMCIA_DEVICE_PROD_ID12("NCR", "WaveLAN/PCMCIA", 0x24358cd4, 0x1bc50975), - PCMCIA_DEVICE_NULL, -}; -MODULE_DEVICE_TABLE(pcmcia, wavelan_ids); - -static struct pcmcia_driver wavelan_driver = { - .owner = THIS_MODULE, - .drv = { - .name = "wavelan_cs", - }, - .probe = wavelan_probe, - .remove = wavelan_detach, - .id_table = wavelan_ids, - .suspend = wavelan_suspend, - .resume = wavelan_resume, -}; - -static int __init -init_wavelan_cs(void) -{ - return pcmcia_register_driver(&wavelan_driver); -} - -static void __exit -exit_wavelan_cs(void) -{ - pcmcia_unregister_driver(&wavelan_driver); -} - -module_init(init_wavelan_cs); -module_exit(exit_wavelan_cs); |