/*********************************************************************
- *
+ *
* Filename: netwave_cs.c
* Version: 0.4.1
* Description: Netwave AirSurfer Wireless LAN PC Card driver
* Created at: A long time ago!
* Modified at: Mon Nov 10 11:54:37 1997
* Modified by: Dag Brattli <dagb@cs.uit.no>
- *
+ *
* Copyright (c) 1997 University of Tromsø, Norway
*
* Revision History:
*
* 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no>
- * - Fixed some bugs in netwave_rx and cleaned it up a bit.
+ * - Fixed some bugs in netwave_rx and cleaned it up a bit.
* (One of the bugs would have destroyed packets when receiving
- * multiple packets per interrupt).
- * - Cleaned up parts of newave_hw_xmit.
- * - A few general cleanups.
+ * multiple packets per interrupt).
+ * - Cleaned up parts of newave_hw_xmit.
+ * - A few general cleanups.
* 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no>
* - Fixed netwave_rx receive function (got updated docs)
* Others:
- * - Changed name from xircnw to netwave, take a look at
+ * - Changed name from xircnw to netwave, take a look at
* http://www.netwave-wireless.com
* - Some reorganizing of the code
* - Removed possible race condition between interrupt handler and transmit
* function
* - Started to add wireless extensions, but still needs some coding
- * - Added watchdog for better handling of transmission timeouts
+ * - Added watchdog for better handling of transmission timeouts
* (hopefully this works better)
********************************************************************/
/*
* Commands used in the extended command buffer
- * NETWAVE_EREG_CB (0x100-0x10F)
+ * NETWAVE_EREG_CB (0x100-0x10F)
*/
#define NETWAVE_CMD_NOP 0x00
#define NETWAVE_CMD_SRC 0x01
static const unsigned int corConfLVLREQ = 0x40; /* Keep high */
static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */
-static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
+static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
static const unsigned int rxConfPro = 0x10; /* Promiscuous */
static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */
static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */
/* Choose the domain, default is 0x100 */
static u_int domain = 0x100;
-/* Scramble key, range from 0x0 to 0xffff.
- * 0x0 is no scrambling.
+/* Scramble key, range from 0x0 to 0xffff.
+ * 0x0 is no scrambling.
*/
static u_int scramble_key = 0x0;
-/* Shared memory speed, in ns. The documentation states that
- * the card should not be read faster than every 400ns.
- * This timing should be provided by the HBA. If it becomes a
- * problem, try setting mem_speed to 400.
+/* Shared memory speed, in ns. The documentation states that
+ * the card should not be read faster than every 400ns.
+ * This timing should be provided by the HBA. If it becomes a
+ * problem, try setting mem_speed to 400.
*/
static int mem_speed;
u_short length;
u_char struct_revision;
u_char roaming_state;
-
+
u_char sp_existsFlag;
u_char sp_link_quality;
u_char sp_max_link_quality;
u_char sp_goodness;
u_char sp_hotheadcount;
u_char roaming_condition;
-
+
net_addr sp;
u_char numAPs;
net_addr nearByAccessPoints[MAX_ESA];
-};
-
+};
+
typedef struct netwave_private {
struct pcmcia_device *p_dev;
spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
* The Netwave card is little-endian, so won't work for big endian
* systems.
*/
-static inline unsigned short get_uint16(u_char __iomem *staddr)
+static inline unsigned short get_uint16(u_char __iomem *staddr)
{
return readw(staddr); /* Return only 16 bits */
}
return readw(staddr);
}
-/*
- * Wait until the WOC (Write Operation Complete) bit in the
- * ASR (Adapter Status Register) is asserted.
- * This should have aborted if it takes too long time.
+/*
+ * Wait until the WOC (Write Operation Complete) bit in the
+ * ASR (Adapter Status Register) is asserted.
+ * This should have aborted if it takes too long time.
*/
static inline void wait_WOC(unsigned int iobase)
{
/* Spin lock */
- while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
+ while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
}
-static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
+static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
unsigned int iobase) {
u_short resultBuffer;
- /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
- * new snapshot, else return cached data. This is the recommended rate.
+ /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
+ * new snapshot, else return cached data. This is the recommended rate.
*/
- if ( jiffies - priv->lastExec > 100) {
- /* Take site survey snapshot */
+ if ( jiffies - priv->lastExec > 100) {
+ /* Take site survey snapshot */
/*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies -
priv->lastExec); */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
- wait_WOC(iobase);
-
- /* Get result and copy to cach */
- resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
- copy_from_pc( &priv->nss, ramBase+resultBuffer,
- sizeof(struct site_survey));
- }
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+ wait_WOC(iobase);
+
+ /* Get result and copy to cach */
+ resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
+ copy_from_pc( &priv->nss, ramBase+resultBuffer,
+ sizeof(struct site_survey));
+ }
}
/*
*
*/
static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
-{
+{
unsigned long flags;
unsigned int iobase = dev->base_addr;
netwave_private *priv = netdev_priv(dev);
u_char __iomem *ramBase = priv->ramBase;
struct iw_statistics* wstats;
-
+
wstats = &priv->iw_stats;
spin_lock_irqsave(&priv->spinlock, flags);
-
+
netwave_snapshot( priv, ramBase, iobase);
wstats->status = priv->nss.roaming_state;
- wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
+ wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ);
wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f;
wstats->discard.nwid = 0L;
wstats->discard.misc = 0L;
spin_unlock_irqrestore(&priv->spinlock, flags);
-
+
return &priv->iw_stats;
}
/*
* Function netwave_attach (void)
*
- * Creates an "instance" of the driver, allocating local data
- * structures for one device. The device is registered with Card
+ * Creates an "instance" of the driver, allocating local data
+ * structures for one device. The device is registered with Card
* Services.
*
* The dev_link structure is initialized, but we don't actually
/* The io structure describes IO port mapping */
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- /* link->io.NumPorts2 = 16;
+ /* link->io.NumPorts2 = 16;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
link->io.IOAddrLines = 5;
-
+
/* Interrupt setup */
link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->irq.Handler = &netwave_interrupt;
-
+
/* General socket configuration */
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
if(!wrqu->nwid.disabled) {
domain = wrqu->nwid.value;
- printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
+ printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
(domain >> 8) & 0x01, domain & 0xff);
wait_WOC(iobase);
writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
/* ReEnable interrupts & restore flags */
spin_unlock_irqrestore(&priv->spinlock, flags);
-
+
return 0;
}
/* ReEnable interrupts & restore flags */
spin_unlock_irqrestore(&priv->spinlock, flags);
-
+
return 0;
}
/* Set the Wireless Extension versions */
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 9; /* Nothing for us in v10 and v11 */
-
+
/* Set information in the range struct */
range->throughput = 450 * 1000; /* don't argue on this ! */
range->min_nwid = 0x0000;
range->max_nwid = 0x01FF;
range->num_channels = range->num_frequency = 0;
-
+
range->sensitivity = 0x3F;
range->max_qual.qual = 255;
range->max_qual.level = 255;
range->max_qual.noise = 0;
-
+
range->num_bitrates = 1;
range->bitrate[0] = 1000000; /* 1 Mb/s */
/* ReEnable interrupts & restore flags */
spin_unlock_irqrestore(&priv->spinlock, flags);
-
+
return(0);
}
static const struct iw_priv_args netwave_private_args[] = {
/*{ cmd, set_args, get_args, name } */
- { SIOCGIPSNAP, 0,
- IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
+ { SIOCGIPSNAP, 0,
+ IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
"getsitesurvey" },
};
/*
* Function netwave_pcmcia_config (link)
*
- * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
+ * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
* event is received, to configure the PCMCIA socket, and to make the
- * device available to the system.
+ * device available to the system.
*
*/
ret = pcmcia_request_window(link, &req, &link->win);
if (ret)
goto failed;
- mem.CardOffset = 0x20000; mem.Page = 0;
+ mem.CardOffset = 0x20000; mem.Page = 0;
ret = pcmcia_map_mem_page(link, link->win, &mem);
if (ret)
goto failed;
netwave_doreset(dev->base_addr, ramBase);
/* Read the ethernet address and fill in the Netwave registers. */
- for (i = 0; i < 6; i++)
+ for (i = 0; i < 6; i++)
dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, "
dev->dev_addr);
/* get revision words */
- printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
+ printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
get_uint16(ramBase + NETWAVE_EREG_ARW),
get_uint16(ramBase + NETWAVE_EREG_ARW+2));
return 0;
/*
* Function netwave_reset (dev)
*
- * Reset and restore all of the netwave registers
+ * Reset and restore all of the netwave registers
*/
static void netwave_reset(struct net_device *dev) {
/* u_char state; */
/* Reset card */
netwave_doreset(iobase, ramBase);
printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
-
+
/* Write a NOP to check the card */
wait_WOC(iobase);
writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
-
+
/* Set receive conf */
wait_WOC(iobase);
writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
-
+
/* Set transmit conf */
wait_WOC(iobase);
writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
-
+
/* Now set the MU Domain */
printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
wait_WOC(iobase);
writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
-
+
/* Set scramble key */
printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
wait_WOC(iobase);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
/* Enable interrupts, bit 4 high to keep unused
- * source from interrupting us, bit 2 high to
- * set interrupt enable, 567 to enable TxDN,
+ * source from interrupting us, bit 2 high to
+ * set interrupt enable, 567 to enable TxDN,
* RxErr and RxRdy
*/
wait_WOC(iobase);
* skriv 80 til d000:3688
* sjekk om det ble 80
*/
-
+
/* Enable Receiver */
wait_WOC(iobase);
writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
-
+
/* Set the IENA bit in COR */
wait_WOC(iobase);
outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
}
/*
- * Function netwave_hw_xmit (data, len, dev)
+ * Function netwave_hw_xmit (data, len, dev)
*/
static int netwave_hw_xmit(unsigned char* data, int len,
struct net_device* dev) {
unsigned long flags;
unsigned int TxFreeList,
curBuff,
- MaxData,
+ MaxData,
DataOffset;
- int tmpcount;
-
+ int tmpcount;
+
netwave_private *priv = netdev_priv(dev);
u_char __iomem * ramBase = priv->ramBase;
unsigned int iobase = dev->base_addr;
TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
-
+
pr_debug("TxFreeList %x, MaxData %x, DataOffset %x\n",
TxFreeList, MaxData, DataOffset);
/* Copy packet to the adapter fragment buffers */
- curBuff = TxFreeList;
- tmpcount = 0;
+ curBuff = TxFreeList;
+ tmpcount = 0;
while (tmpcount < len) {
- int tmplen = len - tmpcount;
- copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
+ int tmplen = len - tmpcount;
+ copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
(tmplen < MaxData) ? tmplen : MaxData);
tmpcount += MaxData;
-
+
/* Advance to next buffer */
curBuff = get_uint16(ramBase + curBuff);
}
-
+
/* Now issue transmit list */
wait_WOC(iobase);
writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
{
short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
unsigned char* buf = skb->data;
-
+
if (netwave_hw_xmit( buf, length, dev) == 1) {
/* Some error, let's make them call us another time? */
netif_start_queue(dev);
dev->trans_start = jiffies;
}
dev_kfree_skb(skb);
-
+
return NETDEV_TX_OK;
} /* netwave_start_xmit */
* Function netwave_interrupt (irq, dev_id)
*
* This function is the interrupt handler for the Netwave card. This
- * routine will be called whenever:
+ * 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.
struct netwave_private *priv = netdev_priv(dev);
struct pcmcia_device *link = priv->p_dev;
int i;
-
+
if (!netif_device_present(dev))
return IRQ_NONE;
-
+
iobase = dev->base_addr;
ramBase = priv->ramBase;
-
+
/* Now find what caused the interrupt, check while interrupts ready */
for (i = 0; i < 10; i++) {
u_char status;
-
- wait_WOC(iobase);
+
+ wait_WOC(iobase);
if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
break; /* None of the interrupt sources asserted (normal exit) */
-
+
status = inb(iobase + NETWAVE_REG_ASR);
-
+
if (!pcmcia_dev_present(link)) {
pr_debug("netwave_interrupt: Interrupt with status 0x%x "
"from removed or suspended card!\n", status);
break;
}
-
+
/* RxRdy */
if (status & 0x80) {
netwave_rx(dev);
/* RxErr */
if (status & 0x40) {
u_char rser;
-
- rser = readb(ramBase + NETWAVE_EREG_RSER);
-
+
+ rser = readb(ramBase + NETWAVE_EREG_RSER);
+
if (rser & 0x04) {
++dev->stats.rx_dropped;
++dev->stats.rx_crc_errors;
}
if (rser & 0x02)
++dev->stats.rx_frame_errors;
-
+
/* Clear the RxErr bit in RSER. RSER+4 is the
- * write part. Also clear the RxCRC (0x04) and
+ * write part. Also clear the RxCRC (0x04) and
* RxBig (0x02) bits if present */
wait_WOC(iobase);
writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
/* Write bit 6 high to ASCC to clear RxErr in ASR,
- * WOC must be set first!
+ * WOC must be set first!
*/
wait_WOC(iobase);
writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
txStatus = readb(ramBase + NETWAVE_EREG_TSER);
pr_debug("Transmit done. TSER = %x id %x\n",
txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
-
+
if (txStatus & 0x20) {
/* Transmitting was okay, clear bits */
wait_WOC(iobase);
writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
++dev->stats.tx_packets;
}
-
+
if (txStatus & 0xd0) {
if (txStatus & 0x80) {
++dev->stats.collisions; /* Because of /proc/net/dev*/
/* ++dev->stats.tx_aborted_errors; */
/* printk("Collision. %ld\n", jiffies - dev->trans_start); */
}
- if (txStatus & 0x40)
+ if (txStatus & 0x40)
++dev->stats.tx_carrier_errors;
/* 0x80 TxGU Transmit giveup - nine times and no luck
* 0x40 TxNOAP No access point. Discarded packet.
- * 0x10 TxErr Transmit error. Always set when
+ * 0x10 TxErr Transmit error. Always set when
* TxGU and TxNOAP is set. (Those are the only ones
* to set TxErr).
*/
pr_debug("netwave_interrupt: TxDN with error status %x\n",
txStatus);
-
+
/* Clear out TxGU, TxNOAP, TxErr and TxTrys */
wait_WOC(iobase);
writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
int dataCount, dataOffset;
int i;
u_char *ptr;
-
+
pr_debug("xinw_rx: Receiving ... \n");
/* Receive max 10 packets for now. */
for (i = 0; i < 10; i++) {
/* Any packets? */
wait_WOC(iobase);
- rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
+ rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
if ( !( rxStatus & 0x80)) /* No more packets */
break;
-
+
/* Check if multicast/broadcast or other */
/* multicast = (rxStatus & 0x20); */
-
+
/* The receive list pointer and length of the packet */
wait_WOC(iobase);
rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
-
+
if (rcvLen < 0) {
- printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
+ printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
rcvLen);
return 0;
}
-
+
skb = dev_alloc_skb(rcvLen+5);
if (skb == NULL) {
pr_debug("netwave_rx: Could not allocate an sk_buff of "
/* Copy packet fragments to the skb data area */
ptr = (u_char*) skb->data;
curBuffer = rcvList;
- tmpcount = 0;
+ tmpcount = 0;
while ( tmpcount < rcvLen) {
/* Get length and offset of current buffer */
dataCount = get_uint16( ramBase+curBuffer+2);
dataOffset = get_uint16( ramBase+curBuffer+4);
-
+
copy_from_pc( ptr + tmpcount,
ramBase+curBuffer+dataOffset, dataCount);
tmpcount += dataCount;
-
+
/* Point to next buffer */
curBuffer = get_uint16(ramBase + curBuffer);
}
-
+
skb->protocol = eth_type_trans(skb,dev);
/* Queue packet for network layer */
netif_rx(skb);
struct pcmcia_device *link = priv->p_dev;
dev_dbg(&link->dev, "netwave_open: starting.\n");
-
+
if (!pcmcia_dev_present(link))
return -ENODEV;
netif_start_queue(dev);
netwave_reset(dev);
-
+
return 0;
}
netwave_private *priv = netdev_priv(dev);
u_char __iomem * ramBase = priv->ramBase;
u_char rcvMode = 0;
-
+
#ifdef PCMCIA_DEBUG
{
xstatic int old;
}
}
#endif
-
+
if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI)) {
/* Multicast Mode */
rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
/* Normal mode */
rcvMode = rxConfRxEna + rxConfBcast;
}
-
+
/* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
/* Now set receive mode */
wait_WOC(iobase);
projects / mirror_ubuntu-jammy-kernel.git / commitdiff