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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/wireless/wavelan_cs.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/wireless/wavelan_cs.c')
-rw-r--r--drivers/net/wireless/wavelan_cs.c4914
1 files changed, 4914 insertions, 0 deletions
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
new file mode 100644
index 000000000000..ec8329788e49
--- /dev/null
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -0,0 +1,4914 @@
+/*
+ * 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 */
+
+/************************* MISC SUBROUTINES **************************/
+/*
+ * Subroutines which won't fit in one of the following category
+ * (wavelan modem or i82593)
+ */
+
+#ifdef STRUCT_CHECK
+/*------------------------------------------------------------------*/
+/*
+ * Sanity routine to verify the sizes of the various WaveLAN interface
+ * structures.
+ */
+static char *
+wv_structuct_check(void)
+{
+#define SC(t,s,n) if (sizeof(t) != s) return(n);
+
+ SC(psa_t, PSA_SIZE, "psa_t");
+ SC(mmw_t, MMW_SIZE, "mmw_t");
+ SC(mmr_t, MMR_SIZE, "mmr_t");
+
+#undef SC
+
+ return((char *) NULL);
+} /* wv_structuct_check */
+#endif /* STRUCT_CHECK */
+
+/******************* MODEM MANAGEMENT SUBROUTINES *******************/
+/*
+ * 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 inline 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 Paramter 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;
+ kio_addr_t base = dev->base_addr;
+ /* As there seem to have no flag PSA_BUSY as in the ISA model, we are
+ * oblige to verify this address to know when the PSA is ready... */
+ volatile u_char __iomem *verify = lp->mem + PSA_ADDR +
+ (psaoff(0, psa_comp_number) << 1);
+
+ /* Authorize writting to PSA */
+ hacr_write(base, HACR_PWR_STAT | HACR_ROM_WEN);
+
+ while(n-- > 0)
+ {
+ /* write to PSA */
+ writeb(*b++, ptr);
+ ptr += 2;
+
+ /* I don't have the spec, so I don't know what the correct
+ * sequence to write is. This hack seem to work for me... */
+ count = 0;
+ while((readb(verify) != PSA_COMP_PCMCIA_915) && (count++ < 100))
+ mdelay(1);
+ }
+
+ /* Put the host interface back in standard state */
+ hacr_write(base, HACR_DEFAULT);
+} /* psa_write */
+
+#ifdef SET_PSA_CRC
+/*------------------------------------------------------------------*/
+/*
+ * Calculate the PSA CRC
+ * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
+ * NOTE: By specifying a length including the CRC position the
+ * returned value should be zero. (i.e. a correct checksum in the PSA)
+ *
+ * The Windows drivers don't use the CRC, but the AP and the PtP tool
+ * depend on it.
+ */
+static u_short
+psa_crc(unsigned char * psa, /* The PSA */
+ int size) /* Number of short for CRC */
+{
+ int byte_cnt; /* Loop on the PSA */
+ u_short crc_bytes = 0; /* Data in the PSA */
+ int bit_cnt; /* Loop on the bits of the short */
+
+ for(byte_cnt = 0; byte_cnt < size; byte_cnt++ )
+ {
+ crc_bytes ^= psa[byte_cnt]; /* Its an xor */
+
+ for(bit_cnt = 1; bit_cnt < 9; bit_cnt++ )
+ {
+ if(crc_bytes & 0x0001)
+ crc_bytes = (crc_bytes >> 1) ^ 0xA001;
+ else
+ crc_bytes >>= 1 ;
+ }
+ }
+
+ return crc_bytes;
+} /* psa_crc */
+#endif /* SET_PSA_CRC */
+
+/*------------------------------------------------------------------*/
+/*
+ * update the checksum field in the Wavelan's PSA
+ */
+static void
+update_psa_checksum(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 inline 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 inline void
+mmc_write(u_long base,
+ u_char o,
+ u_char * b,
+ int n)
+{
+ o += n;
+ b += n;
+
+ while(n-- > 0 )
+ mmc_out(base, --o, *(--b));
+} /* mmc_write */
+
+/*------------------------------------------------------------------*/
+/*
+ * Read 1 byte from the MMC.
+ * Optimised version for 1 byte, avoid using memory...
+ */
+static inline u_char
+mmc_in(u_long base,
+ u_short o)
+{
+ 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 inline void
+mmc_read(u_long base,
+ u_char o,
+ u_char * b,
+ int n)
+{
+ o += n;
+ b += n;
+
+ while(n-- > 0)
+ *(--b) = mmc_in(base, --o);
+} /* mmc_read */
+
+/*------------------------------------------------------------------*/
+/*
+ * Get the type of encryption available...
+ */
+static inline int
+mmc_encr(u_long base) /* i/o port of the card */
+{
+ int temp;
+
+ temp = mmc_in(base, mmroff(0, mmr_des_avail));
+ if((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
+ return 0;
+ else
+ return temp;
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Wait for the frequency EEprom to complete a command...
+ * I hope this one will be optimally inlined...
+ */
+static inline void
+fee_wait(u_long base, /* i/o port of the card */
+ int delay, /* Base delay to wait for */
+ int number) /* Number of time to wait */
+{
+ int count = 0; /* Wait only a limited time */
+
+ while((count++ < number) &&
+ (mmc_in(base, mmroff(0, mmr_fee_status)) & MMR_FEE_STATUS_BUSY))
+ udelay(delay);
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Read bytes from the Frequency EEprom (frequency select cards).
+ */
+static void
+fee_read(u_long base, /* i/o port of the card */
+ u_short o, /* destination offset */
+ u_short * b, /* data buffer */
+ int n) /* number of registers */
+{
+ b += n; /* Position at the end of the area */
+
+ /* Write the address */
+ mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1);
+
+ /* Loop on all buffer */
+ while(n-- > 0)
+ {
+ /* Write the read command */
+ mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_READ);
+
+ /* Wait until EEprom is ready (should be quick !) */
+ fee_wait(base, 10, 100);
+
+ /* Read the value */
+ *--b = ((mmc_in(base, mmroff(0, mmr_fee_data_h)) << 8) |
+ mmc_in(base, mmroff(0, mmr_fee_data_l)));
+ }
+}
+
+#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
+
+/*------------------------------------------------------------------*/
+/*
+ * Write bytes from the Frequency EEprom (frequency select cards).
+ * This is a bit complicated, because the frequency eeprom has to
+ * be unprotected and the write enabled.
+ * Jean II
+ */
+static void
+fee_write(u_long base, /* i/o port of the card */
+ u_short o, /* destination offset */
+ u_short * b, /* data buffer */
+ int n) /* number of registers */
+{
+ b += n; /* Position at the end of the area */
+
+#ifdef EEPROM_IS_PROTECTED /* disabled */
+#ifdef DOESNT_SEEM_TO_WORK /* disabled */
+ /* Ask to read the protected register */
+ mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
+
+ fee_wait(base, 10, 100);
+
+ /* Read the protected register */
+ printk("Protected 2 : %02X-%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 */
+}
+#endif /* WIRELESS_EXT */
+
+/******************* WaveLAN Roaming routines... ********************/
+
+#ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */
+
+unsigned char WAVELAN_BEACON_ADDRESS[]= {0x09,0x00,0x0e,0x20,0x03,0x00};
+
+void wv_roam_init(struct net_device *dev)
+{
+ net_local *lp= 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);
+}
+
+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 */
+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 */
+wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp)
+{
+ wavepoint_history *ptr=lp->wavepoint_table.head;
+
+ while(ptr!=NULL){
+ if(ptr->nwid==nwid)
+ return ptr;
+ ptr=ptr->next;
+ }
+ return NULL;
+}
+
+/* Create a new wavepoint table entry */
+wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp)
+{
+ wavepoint_history *new_wavepoint;
+
+#ifdef WAVELAN_ROAMING_DEBUG
+ printk(KERN_DEBUG "WaveLAN: New Wavepoint, NWID:%.4X\n",nwid);
+#endif
+
+ if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS)
+ return NULL;
+
+ new_wavepoint=(wavepoint_history *) kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
+ if(new_wavepoint==NULL)
+ return NULL;
+
+ new_wavepoint->nwid=nwid; /* New WavePoints NWID */
+ new_wavepoint->average_fast=0; /* Running Averages..*/
+ new_wavepoint->average_slow=0;
+ new_wavepoint->qualptr=0; /* Start of ringbuffer */
+ new_wavepoint->last_seq=seq-1; /* Last sequence no.seen */
+ memset(new_wavepoint->sigqual,0,WAVEPOINT_HISTORY);/* Empty ringbuffer */
+
+ new_wavepoint->next=lp->wavepoint_table.head;/* Add to wavepoint table */
+ new_wavepoint->prev=NULL;
+
+ if(lp->wavepoint_table.head!=NULL)
+ lp->wavepoint_table.head->prev=new_wavepoint;
+
+ lp->wavepoint_table.head=new_wavepoint;
+
+ lp->wavepoint_table.num_wavepoints++; /* no. of visible wavepoints */
+
+ return new_wavepoint;
+}
+
+/* Remove a wavepoint entry from WavePoint table */
+void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp)
+{
+ if(wavepoint==NULL)
+ return;
+
+ if(lp->curr_point==wavepoint)
+ lp->curr_point=NULL;
+
+ if(wavepoint->prev!=NULL)
+ wavepoint->prev->next=wavepoint->next;
+
+ if(wavepoint->next!=NULL)
+ wavepoint->next->prev=wavepoint->prev;
+
+ if(lp->wavepoint_table.head==wavepoint)
+ lp->wavepoint_table.head=wavepoint->next;
+
+ lp->wavepoint_table.num_wavepoints--;
+ kfree(wavepoint);
+}
+
+/* Timer callback function - checks WavePoint table for stale entries */
+void wl_cell_expiry(unsigned long data)
+{
+ net_local *lp=(net_local *)data;
+ wavepoint_history *wavepoint=lp->wavepoint_table.head,*old_point;
+
+#if WAVELAN_ROAMING_DEBUG > 1
+ printk(KERN_DEBUG "WaveLAN: Wavepoint timeout, dev %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 */
+void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq)
+{
+ int i=0,num_missed=0,ptr=0;
+ int average_fast=0,average_slow=0;
+
+ num_missed=(seq-wavepoint->last_seq)%WAVEPOINT_HISTORY;/* Have we missed
+ any beacons? */
+ if(num_missed)
+ for(i=0;i<num_missed;i++)
+ {
+ wavepoint->sigqual[wavepoint->qualptr++]=0; /* If so, enter them as 0's */
+ wavepoint->qualptr %=WAVEPOINT_HISTORY; /* in the ringbuffer. */
+ }
+ wavepoint->last_seen=jiffies; /* Add beacon to history */
+ wavepoint->last_seq=seq;
+ wavepoint->sigqual[wavepoint->qualptr++]=sigqual;
+ wavepoint->qualptr %=WAVEPOINT_HISTORY;
+ ptr=(wavepoint->qualptr-WAVEPOINT_FAST_HISTORY+WAVEPOINT_HISTORY)%WAVEPOINT_HISTORY;
+
+ for(i=0;i<WAVEPOINT_FAST_HISTORY;i++) /* Update running averages */
+ {
+ average_fast+=wavepoint->sigqual[ptr++];
+ ptr %=WAVEPOINT_HISTORY;
+ }
+
+ average_slow=average_fast;
+ for(i=WAVEPOINT_FAST_HISTORY;i<WAVEPOINT_HISTORY;i++)
+ {
+ average_slow+=wavepoint->sigqual[ptr++];
+ ptr %=WAVEPOINT_HISTORY;
+ }
+
+ wavepoint->average_fast=average_fast/WAVEPOINT_FAST_HISTORY;
+ wavepoint->average_slow=average_slow/WAVEPOINT_HISTORY;
+}
+
+/* Perform a handover to a new WavePoint */
+void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp)
+{
+ kio_addr_t base = lp->dev->base_addr;
+ mm_t m;
+ unsigned long flags;
+
+ if(wavepoint==lp->curr_point) /* Sanity check... */
+ {
+ wv_nwid_filter(!NWID_PROMISC,lp);
+ return;
+ }
+
+#ifdef WAVELAN_ROAMING_DEBUG
+ printk(KERN_DEBUG "WaveLAN: Doing handover to %.4X, dev %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 inline 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 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)
+{
+ kio_addr_t 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 be 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)
+{
+ int ret = FALSE;
+
+ if(wv_82593_cmd(dev, "wv_diag(): diagnose",
+ OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED))
+ ret = TRUE;
+
+#ifdef DEBUG_CONFIG_ERRORS
+ printk(KERN_INFO "wavelan_cs: i82593 Self Test failed!\n");
+#endif
+ return(ret);
+} /* 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)
+{
+ kio_addr_t 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 inline void
+wv_82593_reconfig(struct net_device * dev)
+{
+ net_local * lp = netdev_priv(dev);
+ dev_link_t * 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[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
+ p->psa_unused0[0],
+ p->psa_unused0[1],
+ p->psa_unused0[2],
+ p->psa_unused0[3],
+ p->psa_unused0[4],
+ p->psa_unused0[5],
+ p->psa_unused0[6]);
+#endif /* DEBUG_SHOW_UNUSED */
+ printk(KERN_DEBUG "psa_univ_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ p->psa_univ_mac_addr[0],
+ p->psa_univ_mac_addr[1],
+ p->psa_univ_mac_addr[2],
+ p->psa_univ_mac_addr[3],
+ p->psa_univ_mac_addr[4],
+ p->psa_univ_mac_addr[5]);
+ printk(KERN_DEBUG "psa_local_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ p->psa_local_mac_addr[0],
+ p->psa_local_mac_addr[1],
+ p->psa_local_mac_addr[2],
+ p->psa_local_mac_addr[3],
+ p->psa_local_mac_addr[4],
+ p->psa_local_mac_addr[5]);
+ printk(KERN_DEBUG "psa_univ_local_sel: %d, ", p->psa_univ_local_sel);
+ printk("psa_comp_number: %d, ", p->psa_comp_number);
+ printk("psa_thr_pre_set: 0x%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:%02X:%02X\n",
+ p->psa_reserved[0],
+ p->psa_reserved[1],
+ p->psa_reserved[2],
+ p->psa_reserved[3]);
+#endif /* DEBUG_SHOW_UNUSED */
+ printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
+ printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
+ printk("psa_crc_status: 0x%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)
+{
+ kio_addr_t 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);
+
+#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
+ /* Don't forget to update statistics */
+ lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
+#endif /* WIRELESS_EXT */
+
+ 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 algorythm: %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 inline void
+wv_packet_info(u_char * p, /* Packet to dump */
+ int length, /* Length of the packet */
+ char * msg1, /* Name of the device */
+ char * msg2) /* Name of the function */
+{
+ int i;
+ int maxi;
+
+ printk(KERN_DEBUG "%s: %s(): dest %02X:%02X:%02X:%02X:%02X:%02X, length %d\n",
+ msg1, msg2, p[0], p[1], p[2], p[3], p[4], p[5], length);
+ printk(KERN_DEBUG "%s: %s(): src %02X:%02X:%02X:%02X:%02X:%02X, type 0x%02X%02X\n",
+ msg1, msg2, p[6], p[7], p[8], p[9], p[10], p[11], p[12], p[13]);
+
+#ifdef DEBUG_PACKET_DUMP
+
+ printk(KERN_DEBUG "data=\"");
+
+ if((maxi = length) > DEBUG_PACKET_DUMP)
+ maxi = DEBUG_PACKET_DUMP;
+ for(i = 14; i < maxi; i++)
+ if(p[i] >= ' ' && p[i] <= '~')
+ printk(" %c", p[i]);
+ else
+ printk("%02X", p[i]);
+ if(maxi < length)
+ printk("..");
+ printk("\"\n");
+ printk(KERN_DEBUG "\n");
+#endif /* DEBUG_PACKET_DUMP */
+}
+#endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
+
+/*------------------------------------------------------------------*/
+/*
+ * This is the information which is displayed by the driver at startup
+ * There is a lot of flag to configure it at your will...
+ */
+static inline void
+wv_init_info(struct net_device * dev)
+{
+ kio_addr_t base = dev->base_addr;
+ psa_t psa;
+ int i;
+
+ /* Read the parameter storage area */
+ psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
+
+#ifdef DEBUG_PSA_SHOW
+ wv_psa_show(&psa);
+#endif
+#ifdef DEBUG_MMC_SHOW
+ wv_mmc_show(dev);
+#endif
+#ifdef DEBUG_I82593_SHOW
+ wv_ru_show(dev);
+#endif
+
+#ifdef DEBUG_BASIC_SHOW
+ /* Now, let's go for the basic stuff */
+ printk(KERN_NOTICE "%s: WaveLAN: port %#lx, irq %d, hw_addr",
+ dev->name, base, dev->irq);
+ for(i = 0; i < WAVELAN_ADDR_SIZE; i++)
+ printk("%s%02X", (i == 0) ? " " : ":", dev->dev_addr[i]);
+
+ /* Print current network id */
+ if(psa.psa_nwid_select)
+ printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], psa.psa_nwid[1]);
+ else
+ printk(", nwid off");
+
+ /* If 2.00 card */
+ if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
+ (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
+ {
+ unsigned short freq;
+
+ /* Ask the EEprom to read the frequency from the first area */
+ fee_read(base, 0x00 /* 1st area - frequency... */,
+ &freq, 1);
+
+ /* Print frequency */
+ printk(", 2.00, %ld", (freq >> 6) + 2400L);
+
+ /* Hack !!! */
+ if(freq & 0x20)
+ printk(".5");
+ }
+ else
+ {
+ printk(", PCMCIA, ");
+ switch (psa.psa_subband)
+ {
+ case PSA_SUBBAND_915:
+ printk("915");
+ break;
+ case PSA_SUBBAND_2425:
+ printk("2425");
+ break;
+ case PSA_SUBBAND_2460:
+ printk("2460");
+ break;
+ case PSA_SUBBAND_2484:
+ printk("2484");
+ break;
+ case PSA_SUBBAND_2430_5:
+ printk("2430.5");
+ break;
+ default:
+ printk("unknown");
+ }
+ }
+
+ printk(" 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
+ */
+
+/*------------------------------------------------------------------*/
+/*
+ * Get the current ethernet statistics. This may be called with the
+ * card open or closed.
+ * Used when the user read /proc/net/dev
+ */
+static en_stats *
+wavelan_get_stats(struct net_device * dev)
+{
+#ifdef DEBUG_IOCTL_TRACE
+ printk(KERN_DEBUG "%s: <>wavelan_get_stats()\n", dev->name);
+#endif
+
+ return(&((net_local *)netdev_priv(dev))->stats);
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Set or clear the multicast filter for this adaptor.
+ * num_addrs == -1 Promiscuous mode, receive all packets
+ * num_addrs == 0 Normal mode, clear multicast list
+ * num_addrs > 0 Multicast mode, receive normal and MC packets,
+ * and do best-effort filtering.
+ */
+
+static void
+wavelan_set_multicast_list(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);
+
+ /* Tell the kernel that we are doing a really bad job... */
+ dev->flags |= IFF_PROMISC;
+ }
+ }
+ else
+ /* If all multicast addresses
+ * or too much multicast addresses for the hardware filter */
+ if((dev->flags & IFF_ALLMULTI) ||
+ (dev->mc_count > I82593_MAX_MULTICAST_ADDRESSES))
+ {
+ /*
+ * Disable promiscuous mode, but active the all multicast mode
+ */
+ if(!lp->allmulticast)
+ {
+ lp->promiscuous = 0;
+ lp->allmulticast = 1;
+ lp->mc_count = 0;
+
+ wv_82593_reconfig(dev);
+
+ /* Tell the kernel that we are doing a really bad job... */
+ dev->flags |= IFF_ALLMULTI;
+ }
+ }
+ else
+ /* If there is some multicast addresses to send */
+ if(dev->mc_list != (struct dev_mc_list *) NULL)
+ {
+ /*
+ * Disable promiscuous mode, but receive all packets
+ * in multicast list
+ */
+#ifdef MULTICAST_AVOID
+ if(lp->promiscuous || lp->allmulticast ||
+ (dev->mc_count != lp->mc_count))
+#endif
+ {
+ lp->promiscuous = 0;
+ lp->allmulticast = 0;
+ lp->mc_count = dev->mc_count;
+
+ wv_82593_reconfig(dev);
+ }
+ }
+ else
+ {
+ /*
+ * Switch to normal mode: disable promiscuous mode and
+ * clear the multicast list.
+ */
+ if(lp->promiscuous || lp->mc_count == 0)
+ {
+ lp->promiscuous = 0;
+ lp->allmulticast = 0;
+ lp->mc_count = 0;
+
+ wv_82593_reconfig(dev);
+ }
+ }
+#ifdef DEBUG_IOCTL_TRACE
+ printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", dev->name);
+#endif
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * This function doesn't exist...
+ * (Note : it was a nice way to test the reconfigure stuff...)
+ */
+#ifdef SET_MAC_ADDRESS
+static int
+wavelan_set_mac_address(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 */
+
+#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
+
+/*------------------------------------------------------------------*/
+/*
+ * Frequency setting (for hardware able of it)
+ * It's a bit complicated and you don't really want to look into it...
+ */
+static inline int
+wv_set_frequency(u_long base, /* i/o port of the card */
+ iw_freq * frequency)
+{
+ const int BAND_NUM = 10; /* Number of bands */
+ long freq = 0L; /* offset to 2.4 GHz in .5 MHz */
+#ifdef DEBUG_IOCTL_INFO
+ int i;
+#endif
+
+ /* Setting by frequency */
+ /* Theoritically, you may set any frequency between
+ * the two limits with a 0.5 MHz precision. In practice,
+ * I don't want you to have trouble with local
+ * regulations... */
+ if((frequency->e == 1) &&
+ (frequency->m >= (int) 2.412e8) && (frequency->m <= (int) 2.487e8))
+ {
+ freq = ((frequency->m / 10000) - 24000L) / 5;
+ }
+
+ /* Setting by channel (same as wfreqsel) */
+ /* Warning : each channel is 22MHz wide, so some of the channels
+ * will interfere... */
+ if((frequency->e == 0) &&
+ (frequency->m >= 0) && (frequency->m < BAND_NUM))
+ {
+ /* Get frequency offset. */
+ freq = channel_bands[frequency->m] >> 1;
+ }
+
+ /* Verify if the frequency is allowed */
+ if(freq != 0L)
+ {
+ u_short table[10]; /* Authorized frequency table */
+
+ /* Read the frequency table */
+ fee_read(base, 0x71 /* frequency table */,
+ table, 10);
+
+#ifdef DEBUG_IOCTL_INFO
+ printk(KERN_DEBUG "Frequency table :");
+ for(i = 0; i < 10; i++)
+ {
+ printk(" %04X",
+ table[i]);
+ }
+ printk("\n");
+#endif
+
+ /* Look in the table if the frequency is allowed */
+ if(!(table[9 - ((freq - 24) / 16)] &
+ (1 << ((freq - 24) % 16))))
+ return -EINVAL; /* not allowed */
+ }
+ else
+ return -EINVAL;
+
+ /* If we get a usable frequency */
+ if(freq != 0L)
+ {
+ unsigned short area[16];
+ unsigned short dac[2];
+ unsigned short area_verify[16];
+ unsigned short dac_verify[2];
+ /* Corresponding gain (in the power adjust value table)
+ * see AT&T Wavelan Data Manual, REF 407-024689/E, page 3-8
+ * & WCIN062D.DOC, page 6.2.9 */
+ unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
+ int power_band = 0; /* Selected band */
+ unsigned short power_adjust; /* Correct value */
+
+ /* Search for the gain */
+ power_band = 0;
+ while((freq > power_limit[power_band]) &&
+ (power_limit[++power_band] != 0))
+ ;
+
+ /* Read the first area */
+ fee_read(base, 0x00,
+ area, 16);
+
+ /* Read the DAC */
+ fee_read(base, 0x60,
+ dac, 2);
+
+ /* Read the new power adjust value */
+ fee_read(base, 0x6B - (power_band >> 1),
+ &power_adjust, 1);
+ if(power_band & 0x1)
+ power_adjust >>= 8;
+ else
+ power_adjust &= 0xFF;
+
+#ifdef DEBUG_IOCTL_INFO
+ printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
+ for(i = 0; i < 16; i++)
+ {
+ printk(" %04X",
+ area[i]);
+ }
+ printk("\n");
+
+ printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %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 writting was ok */
+
+ /* ReRead the first area */
+ fee_read(base, 0x00,
+ area_verify, 16);
+
+ /* ReRead the DAC */
+ fee_read(base, 0x60,
+ dac_verify, 2);
+
+ /* Compare */
+ if(memcmp(area, area_verify, 16 * 2) ||
+ memcmp(dac, dac_verify, 2 * 2))
+ {
+#ifdef DEBUG_IOCTL_ERROR
+ printk(KERN_INFO "Wavelan: wv_set_frequency : unable to write new frequency to EEprom (?)\n");
+#endif
+ return -EOPNOTSUPP;
+ }
+
+ /* We must download the frequency parameters to the
+ * synthetisers (from the EEprom - area 1)
+ * Note : as the EEprom is auto decremented, we set the end
+ * if the area... */
+ mmc_out(base, mmwoff(0, mmw_fee_addr), 0x0F);
+ mmc_out(base, mmwoff(0, mmw_fee_ctrl),
+ MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
+
+ /* Wait until the download is finished */
+ fee_wait(base, 100, 100);
+
+ /* We must now download the power adjust value (gain) to
+ * the synthetisers (from the EEprom - area 7 - DAC) */
+ mmc_out(base, mmwoff(0, mmw_fee_addr), 0x61);
+ mmc_out(base, mmwoff(0, mmw_fee_ctrl),
+ MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
+
+ /* Wait until the download is finished */
+ fee_wait(base, 100, 100);
+
+#ifdef DEBUG_IOCTL_INFO
+ /* Verification of what we have done... */
+
+ printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
+ for(i = 0; i < 16; i++)
+ {
+ printk(" %04X",
+ area_verify[i]);
+ }
+ printk("\n");
+
+ printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %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 inline int
+wv_frequency_list(u_long base, /* i/o port of the card */
+ iw_freq * list, /* List of frequency to fill */
+ int max) /* Maximum number of frequencies */
+{
+ u_short table[10]; /* Authorized frequency table */
+ long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */
+ int i; /* index in the table */
+ 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 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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) + 1;
+
+ 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 : %02X:%02X:%02X:%02X:%02X:%02X\n",
+ wrqu->ap_addr.sa_data[0],
+ wrqu->ap_addr.sa_data[1],
+ wrqu->ap_addr.sa_data[2],
+ wrqu->ap_addr.sa_data[3],
+ wrqu->ap_addr.sa_data[4],
+ wrqu->ap_addr.sa_data[5]);
+#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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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 = sizeof(wavelan_handler)/sizeof(iw_handler),
+ .num_private = sizeof(wavelan_private_handler)/sizeof(iw_handler),
+ .num_private_args = sizeof(wavelan_private_args)/sizeof(struct iw_priv_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)
+{
+ kio_addr_t 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;
+}
+#endif /* WIRELESS_EXT */
+
+/************************* 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 inline int
+wv_start_of_frame(struct net_device * dev,
+ int rfp, /* end of frame */
+ int wrap) /* start of buffer */
+{
+ kio_addr_t 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 inline 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
+ lp->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->dev = dev;
+
+ 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.raw, 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.raw + 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->last_rx = jiffies;
+ lp->stats.rx_packets++;
+ lp->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 inline void
+wv_packet_rcv(struct net_device * dev)
+{
+ kio_addr_t 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)
+ {
+ lp->stats.rx_errors++;
+ if(status & RX_NO_SFD)
+ lp->stats.rx_frame_errors++;
+ if(status & RX_CRC_ERR)
+ lp->stats.rx_crc_errors++;
+ if(status & RX_OVRRUN)
+ lp->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 inline void
+wv_packet_write(struct net_device * dev,
+ void * buf,
+ short length)
+{
+ net_local * lp = netdev_priv(dev);
+ kio_addr_t 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 */
+ lp->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 int
+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 */
+ }
+
+#ifdef DEBUG_TX_ERROR
+ if (skb->next)
+ printk(KERN_INFO "skb has next\n");
+#endif
+
+ /* 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->len < ETH_ZLEN) {
+ skb = skb_padto(skb, ETH_ZLEN);
+ if (skb == NULL)
+ return 0;
+ }
+
+ 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(0);
+}
+
+/********************** 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 inline int
+wv_mmc_init(struct net_device * dev)
+{
+ kio_addr_t 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 < (sizeof(MAC_ADDRESSES) / sizeof(char) / 3); 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 == (sizeof(MAC_ADDRESSES) / sizeof(char) / 3))
+ {
+#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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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)
+{
+ kio_addr_t 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 algoritm */
+ cfblk.exp_prio = 5; /* conform to 802.3 backoff algoritm */
+ cfblk.bof_met = 1; /* conform to 802.3 backoff algoritm */
+ cfblk.ifrm_spc = 0x20; /* 32 bit times interframe spacing */
+ cfblk.slottim_low = 0x20; /* 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
+ {
+ u_char *c = (u_char *) &cfblk;
+ int i;
+ printk(KERN_DEBUG "wavelan_cs: config block:");
+ for(i = 0; i < sizeof(struct i82593_conf_block); i++,c++)
+ {
+ if((i % 16) == 0) printk("\n" KERN_DEBUG);
+ printk("%02x ", *c);
+ }
+ printk("\n");
+ }
+#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 " %02x:%02x:%02x:%02x:%02x:%02x\n",
+ dmi->dmi_addr[0], dmi->dmi_addr[1], dmi->dmi_addr[2],
+ dmi->dmi_addr[3], dmi->dmi_addr[4], dmi->dmi_addr[5] );
+#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 inline int
+wv_pcmcia_reset(struct net_device * dev)
+{
+ int i;
+ conf_reg_t reg = { 0, CS_READ, CISREG_COR, 0 };
+ dev_link_t * 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->handle, &reg);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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->handle, &reg);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, AccessConfigurationRegister, i);
+ return FALSE;
+ }
+
+ reg.Action = CS_WRITE;
+ reg.Value = COR_LEVEL_IRQ | COR_CONFIG;
+ i = pcmcia_access_configuration_register(link->handle, &reg);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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);
+ kio_addr_t 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
+
+#ifdef STRUCT_CHECK
+ if(wv_structuct_check() != (char *) NULL)
+ {
+ printk(KERN_WARNING "%s: wv_hw_config: structure/compiler botch: \"%s\"\n",
+ dev->name, wv_structuct_check());
+ return FALSE;
+ }
+#endif /* STRUCT_CHECK == 1 */
+
+ /* 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 inline 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 inline int
+wv_pcmcia_config(dev_link_t * link)
+{
+ client_handle_t handle = link->handle;
+ tuple_t tuple;
+ cisparse_t parse;
+ struct net_device * dev = (struct net_device *) link->priv;
+ int i;
+ u_char buf[64];
+ 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
+
+ /*
+ * This reads the card's CONFIG tuple to find its configuration
+ * registers.
+ */
+ do
+ {
+ tuple.Attributes = 0;
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ i = pcmcia_get_first_tuple(handle, &tuple);
+ if(i != CS_SUCCESS)
+ break;
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleDataMax = 64;
+ tuple.TupleOffset = 0;
+ i = pcmcia_get_tuple_data(handle, &tuple);
+ if(i != CS_SUCCESS)
+ break;
+ i = pcmcia_parse_tuple(handle, &tuple, &parse);
+ if(i != CS_SUCCESS)
+ break;
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+ }
+ while(0);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, ParseTuple, i);
+ link->state &= ~DEV_CONFIG_PENDING;
+ return FALSE;
+ }
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+ do
+ {
+ i = pcmcia_request_io(link->handle, &link->io);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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->handle, &link->irq);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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->handle, &link->conf);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, RequestConfiguration, i);
+ break;
+ }
+
+ /*
+ * Allocate a small memory window. Note that the dev_link_t
+ * 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->handle, &req, &link->win);
+ if(i != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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 != CS_SUCCESS)
+ {
+ cs_error(link->handle, 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(handle));
+ 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 !!! */
+
+ link->state &= ~DEV_CONFIG_PENDING;
+ /* 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 = &((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(dev_link_t *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
+
+ /* Don't bother checking to see if these succeed or not */
+ iounmap(lp->mem);
+ pcmcia_release_window(link->win);
+ pcmcia_release_configuration(link->handle);
+ pcmcia_release_io(link->handle, &link->io);
+ pcmcia_release_irq(link->handle, &link->irq);
+
+ link->state &= ~DEV_CONFIG;
+
+#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 pt_regs * regs)
+{
+ struct net_device * dev;
+ net_local * lp;
+ kio_addr_t base;
+ int status0;
+ u_int tx_status;
+
+ if ((dev = dev_id) == NULL)
+ {
+#ifdef DEBUG_INTERRUPT_ERROR
+ printk(KERN_WARNING "wavelan_interrupt(): irq %d for unknown device.\n",
+ irq);
+#endif
+ return IRQ_NONE;
+ }
+
+#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
+ lp->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)
+ {
+ lp->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
+ lp->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
+ lp->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
+ lp->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
+ lp->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))
+ {
+ lp->stats.collisions += 0x10;
+ }
+ }
+ }
+ } /* if(!(tx_status & TX_OK)) */
+
+ lp->stats.collisions += (tx_status & TX_NCOL_MASK);
+ lp->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);
+ kio_addr_t 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);
+ dev_link_t * link = lp->link;
+ kio_addr_t 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)
+{
+ dev_link_t * link = ((net_local *)netdev_priv(dev))->link;
+ kio_addr_t 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;
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * 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 dev_link_t *
+wavelan_attach(void)
+{
+ client_reg_t client_reg; /* Register with cardmgr */
+ dev_link_t * link; /* Info for cardmgr */
+ 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
+
+ /* Initialize the dev_link_t structure */
+ link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
+ if (!link) return NULL;
+ memset(link, 0, sizeof(struct dev_link_t));
+
+ /* The io structure describes IO port mapping */
+ link->io.NumPorts1 = 8;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.IOAddrLines = 3;
+
+ /* Interrupt setup */
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->irq.Handler = wavelan_interrupt;
+
+ /* General socket configuration */
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ /* Chain drivers */
+ link->next = dev_list;
+ dev_list = link;
+
+ /* Allocate the generic data structure */
+ dev = alloc_etherdev(sizeof(net_local));
+ if (!dev) {
+ kfree(link);
+ return NULL;
+ }
+ link->priv = link->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->link = link;
+ lp->dev = dev;
+
+ /* wavelan NET3 callbacks */
+ SET_MODULE_OWNER(dev);
+ dev->open = &wavelan_open;
+ dev->stop = &wavelan_close;
+ dev->hard_start_xmit = &wavelan_packet_xmit;
+ dev->get_stats = &wavelan_get_stats;
+ dev->set_multicast_list = &wavelan_set_multicast_list;
+#ifdef SET_MAC_ADDRESS
+ dev->set_mac_address = &wavelan_set_mac_address;
+#endif /* SET_MAC_ADDRESS */
+
+ /* Set the watchdog timer */
+ dev->tx_timeout = &wavelan_watchdog;
+ dev->watchdog_timeo = WATCHDOG_JIFFIES;
+ SET_ETHTOOL_OPS(dev, &ops);
+
+#ifdef WIRELESS_EXT /* If wireless extension exist in the kernel */
+ dev->wireless_handlers = &wavelan_handler_def;
+ lp->wireless_data.spy_data = &lp->spy_data;
+ dev->wireless_data = &lp->wireless_data;
+#endif
+
+ /* Other specific data */
+ dev->mtu = WAVELAN_MTU;
+
+ /* Register with Card Services */
+ client_reg.dev_info = &dev_info;
+ client_reg.EventMask =
+ CS_EVENT_REGISTRATION_COMPLETE |
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.event_handler = &wavelan_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+
+#ifdef DEBUG_CONFIG_INFO
+ printk(KERN_DEBUG "wavelan_attach(): almost done, calling pcmcia_register_client\n");
+#endif
+
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if(ret != 0)
+ {
+ cs_error(link->handle, RegisterClient, ret);
+ wavelan_detach(link);
+ return NULL;
+ }
+
+#ifdef DEBUG_CALLBACK_TRACE
+ printk(KERN_DEBUG "<- wavelan_attach()\n");
+#endif
+
+ return link;
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * 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(dev_link_t * link)
+{
+#ifdef DEBUG_CALLBACK_TRACE
+ printk(KERN_DEBUG "-> wavelan_detach(0x%p)\n", link);
+#endif
+
+ /*
+ * If the device is currently configured and active, we won't
+ * actually delete it yet. Instead, it is marked so that when the
+ * release() function is called, that will trigger a proper
+ * detach().
+ */
+ if(link->state & DEV_CONFIG)
+ {
+ /* Some others haven't done their job : give them another chance */
+ wv_pcmcia_release(link);
+ }
+
+ /* Break the link with Card Services */
+ if(link->handle)
+ pcmcia_deregister_client(link->handle);
+
+ /* Remove the interface data from the linked list */
+ if(dev_list == link)
+ dev_list = link->next;
+ else
+ {
+ dev_link_t * prev = dev_list;
+
+ while((prev != (dev_link_t *) NULL) && (prev->next != link))
+ prev = prev->next;
+
+ if(prev == (dev_link_t *) NULL)
+ {
+#ifdef DEBUG_CONFIG_ERRORS
+ printk(KERN_WARNING "wavelan_detach : Attempting to remove a nonexistent device.\n");
+#endif
+ return;
+ }
+
+ prev->next = link->next;
+ }
+
+ /* 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)
+ unregister_netdev(dev);
+ link->dev = NULL;
+ ((net_local *)netdev_priv(dev))->link = NULL;
+ ((net_local *)netdev_priv(dev))->dev = NULL;
+ free_netdev(dev);
+ }
+ kfree(link);
+
+#ifdef DEBUG_CALLBACK_TRACE
+ printk(KERN_DEBUG "<- wavelan_detach()\n");
+#endif
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * The card status event handler. Mostly, this schedules other stuff
+ * to run after an event is received. A CARD_REMOVAL event also sets
+ * some flags to discourage the net drivers from trying to talk to the
+ * card any more.
+ */
+static int
+wavelan_event(event_t event, /* The event received */
+ int priority,
+ event_callback_args_t * args)
+{
+ dev_link_t * link = (dev_link_t *) args->client_data;
+ struct net_device * dev = (struct net_device *) link->priv;
+
+#ifdef DEBUG_CALLBACK_TRACE
+ printk(KERN_DEBUG "->wavelan_event(): %s\n",
+ ((event == CS_EVENT_REGISTRATION_COMPLETE)?"registration complete" :
+ ((event == CS_EVENT_CARD_REMOVAL) ? "card removal" :
+ ((event == CS_EVENT_CARD_INSERTION) ? "card insertion" :
+ ((event == CS_EVENT_PM_SUSPEND) ? "pm suspend" :
+ ((event == CS_EVENT_RESET_PHYSICAL) ? "physical reset" :
+ ((event == CS_EVENT_PM_RESUME) ? "pm resume" :
+ ((event == CS_EVENT_CARD_RESET) ? "card reset" :
+ "unknown"))))))));
+#endif
+
+ switch(event)
+ {
+ case CS_EVENT_REGISTRATION_COMPLETE:
+#ifdef DEBUG_CONFIG_INFO
+ printk(KERN_DEBUG "wavelan_cs: registration complete\n");
+#endif
+ break;
+
+ case CS_EVENT_CARD_REMOVAL:
+ /* Oups ! The card is no more there */
+ link->state &= ~DEV_PRESENT;
+ if(link->state & DEV_CONFIG)
+ {
+ /* Accept no more transmissions */
+ netif_device_detach(dev);
+
+ /* Release the card */
+ wv_pcmcia_release(link);
+ }
+ break;
+
+ case CS_EVENT_CARD_INSERTION:
+ /* Reset and configure the card */
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ if(wv_pcmcia_config(link) &&
+ wv_hw_config(dev))
+ wv_init_info(dev);
+ else
+ dev->irq = 0;
+ break;
+
+ case CS_EVENT_PM_SUSPEND:
+ /* 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);
+
+ /* Power down the module */
+ hacr_write(dev->base_addr, HACR_DEFAULT & (~HACR_PWR_STAT));
+
+ /* The card is now suspended */
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if(link->state & DEV_CONFIG)
+ {
+ if(link->open)
+ netif_device_detach(dev);
+ pcmcia_release_configuration(link->handle);
+ }
+ break;
+
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if(link->state & DEV_CONFIG)
+ {
+ pcmcia_request_configuration(link->handle, &link->conf);
+ if(link->open) /* If RESET -> True, If RESUME -> False ? */
+ {
+ wv_hw_reset(dev);
+ netif_device_attach(dev);
+ }
+ }
+ break;
+ }
+
+#ifdef DEBUG_CALLBACK_TRACE
+ printk(KERN_DEBUG "<-wavelan_event()\n");
+#endif
+ return 0;
+}
+
+static struct pcmcia_driver wavelan_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "wavelan_cs",
+ },
+ .attach = wavelan_attach,
+ .detach = wavelan_detach,
+};
+
+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);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-24 00:33:41 +0300