From: David S. Miller Date: Sat, 5 Dec 2009 23:22:26 +0000 (-0800) Subject: Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=28b4d5cc17c20786848cdc07b7ea237a309776bb;p=deliverable%2Flinux.git Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ Conflicts: drivers/net/pcmcia/fmvj18x_cs.c drivers/net/pcmcia/nmclan_cs.c drivers/net/pcmcia/xirc2ps_cs.c drivers/net/wireless/ray_cs.c --- 28b4d5cc17c20786848cdc07b7ea237a309776bb diff --cc drivers/net/pcmcia/fmvj18x_cs.c index a6961215cd56,6e3e1ced6db4..8ad8384fc1c0 --- a/drivers/net/pcmcia/fmvj18x_cs.c +++ b/drivers/net/pcmcia/fmvj18x_cs.c @@@ -262,10 -255,8 +255,8 @@@ static int fmvj18x_probe(struct pcmcia_ link->io.IOAddrLines = 5; /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT; - link->irq.IRQInfo1 = IRQ_LEVEL_ID; + link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &fjn_interrupt; + link->irq.Handler = fjn_interrupt; - link->irq.Instance = dev; /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; diff --cc drivers/net/pcmcia/nmclan_cs.c index b12e69592d18,dae5ef6b2609..8a5ae3b182ed --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@@ -477,10 -463,8 +463,8 @@@ static int nmclan_probe(struct pcmcia_d link->io.NumPorts1 = 32; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 5; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; - link->irq.IRQInfo1 = IRQ_LEVEL_ID; + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = &mace_interrupt; + link->irq.Handler = mace_interrupt; - link->irq.Instance = dev; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; diff --cc drivers/net/pcmcia/smc91c92_cs.c index 117b083a10cb,9e0da370912e..cc4853bc0253 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@@ -524,38 -478,40 +478,40 @@@ static int mhz_mfc_config(struct pcmcia mem.CardOffset = mem.Page = 0; if (smc->manfid == MANFID_MOTOROLA) mem.CardOffset = link->conf.ConfigBase; - i = pcmcia_map_mem_page(link->win, &mem); + i = pcmcia_map_mem_page(link, link->win, &mem); - if ((i == 0) - && (smc->manfid == MANFID_MEGAHERTZ) - && (smc->cardid == PRODID_MEGAHERTZ_EM3288)) - mhz_3288_power(link); + if ((i == 0) && + (smc->manfid == MANFID_MEGAHERTZ) && + (smc->cardid == PRODID_MEGAHERTZ_EM3288)) + mhz_3288_power(link); - free_cfg_mem: - kfree(cfg_mem); - return -ENODEV; + return 0; } - static int mhz_setup(struct pcmcia_device *link) + static int pcmcia_get_versmac(struct pcmcia_device *p_dev, + tuple_t *tuple, + void *priv) { - struct net_device *dev = link->priv; - struct smc_cfg_mem *cfg_mem; - tuple_t *tuple; - cisparse_t *parse; - u_char *buf, *station_addr; - int rc; + struct net_device *dev = priv; + cisparse_t parse; - cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL); - if (!cfg_mem) - return -1; + if (pcmcia_parse_tuple(tuple, &parse)) + return -EINVAL; - tuple = &cfg_mem->tuple; - parse = &cfg_mem->parse; - buf = cfg_mem->buf; + if ((parse.version_1.ns > 3) && + (cvt_ascii_address(dev, + (parse.version_1.str + parse.version_1.ofs[3])))) + return 0; - tuple->Attributes = tuple->TupleOffset = 0; - tuple->TupleData = (cisdata_t *)buf; - tuple->TupleDataMax = 255; + return -EINVAL; + }; + + static int mhz_setup(struct pcmcia_device *link) + { + struct net_device *dev = link->priv; + size_t len; + u8 *buf; + int rc; /* Read the station address from the CIS. It is stored as the last (fourth) string in the Version 1 Version/ID tuple. */ diff --cc drivers/staging/netwave/netwave_cs.c index 9498b46c99a4,000000000000..e61e6b9440ab mode 100644,000000..100644 --- a/drivers/staging/netwave/netwave_cs.c +++ b/drivers/staging/netwave/netwave_cs.c @@@ -1,1389 -1,0 +1,1370 @@@ +/********************************************************************* + * + * Filename: netwave_cs.c + * Version: 0.4.1 + * Description: Netwave AirSurfer Wireless LAN PC Card driver + * Status: Experimental. + * Authors: John Markus Bjørndalen + * Dag Brattli + * David Hinds + * Created at: A long time ago! + * Modified at: Mon Nov 10 11:54:37 1997 + * Modified by: Dag Brattli + * + * Copyright (c) 1997 University of Tromsø, Norway + * + * Revision History: + * + * 08-Nov-97 15:14:47 John Markus Bjørndalen + * - 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. + * 24-Oct-97 13:17:36 Dag Brattli + * - Fixed netwave_rx receive function (got updated docs) + * Others: + * - 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 + * (hopefully this works better) + ********************************************************************/ + +/* To have statistics (just packets sent) define this */ +#undef NETWAVE_STATS + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define NETWAVE_REGOFF 0x8000 +/* The Netwave IO registers, offsets to iobase */ +#define NETWAVE_REG_COR 0x0 +#define NETWAVE_REG_CCSR 0x2 +#define NETWAVE_REG_ASR 0x4 +#define NETWAVE_REG_IMR 0xa +#define NETWAVE_REG_PMR 0xc +#define NETWAVE_REG_IOLOW 0x6 +#define NETWAVE_REG_IOHI 0x7 +#define NETWAVE_REG_IOCONTROL 0x8 +#define NETWAVE_REG_DATA 0xf +/* The Netwave Extended IO registers, offsets to RamBase */ +#define NETWAVE_EREG_ASCC 0x114 +#define NETWAVE_EREG_RSER 0x120 +#define NETWAVE_EREG_RSERW 0x124 +#define NETWAVE_EREG_TSER 0x130 +#define NETWAVE_EREG_TSERW 0x134 +#define NETWAVE_EREG_CB 0x100 +#define NETWAVE_EREG_SPCQ 0x154 +#define NETWAVE_EREG_SPU 0x155 +#define NETWAVE_EREG_LIF 0x14e +#define NETWAVE_EREG_ISPLQ 0x156 +#define NETWAVE_EREG_HHC 0x158 +#define NETWAVE_EREG_NI 0x16e +#define NETWAVE_EREG_MHS 0x16b +#define NETWAVE_EREG_TDP 0x140 +#define NETWAVE_EREG_RDP 0x150 +#define NETWAVE_EREG_PA 0x160 +#define NETWAVE_EREG_EC 0x180 +#define NETWAVE_EREG_CRBP 0x17a +#define NETWAVE_EREG_ARW 0x166 + +/* + * Commands used in the extended command buffer + * NETWAVE_EREG_CB (0x100-0x10F) + */ +#define NETWAVE_CMD_NOP 0x00 +#define NETWAVE_CMD_SRC 0x01 +#define NETWAVE_CMD_STC 0x02 +#define NETWAVE_CMD_AMA 0x03 +#define NETWAVE_CMD_DMA 0x04 +#define NETWAVE_CMD_SAMA 0x05 +#define NETWAVE_CMD_ER 0x06 +#define NETWAVE_CMD_DR 0x07 +#define NETWAVE_CMD_TL 0x08 +#define NETWAVE_CMD_SRP 0x09 +#define NETWAVE_CMD_SSK 0x0a +#define NETWAVE_CMD_SMD 0x0b +#define NETWAVE_CMD_SAPD 0x0c +#define NETWAVE_CMD_SSS 0x11 +/* End of Command marker */ +#define NETWAVE_CMD_EOC 0x00 + +/* ASR register bits */ +#define NETWAVE_ASR_RXRDY 0x80 +#define NETWAVE_ASR_TXBA 0x01 + +#define TX_TIMEOUT ((32*HZ)/100) + +static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */ +static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */ + +static const unsigned int corConfIENA = 0x01; /* Interrupt enable */ +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 rxConfPro = 0x10; /* Promiscuous */ +static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */ +static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */ + +static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */ +static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */ +static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */ +static const unsigned int txConfKey = 0x02; /* Scramble data packets */ +static const unsigned int txConfLoop = 0x01; /* Loopback mode */ + - /* - All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If - you do not define PCMCIA_DEBUG at all, all the debug code will be - left out. If you compile with PCMCIA_DEBUG=0, the debug code will - be present but disabled -- but it can then be enabled for specific - modules at load time with a 'pc_debug=#' option to insmod. - */ - - #ifdef PCMCIA_DEBUG - static int pc_debug = PCMCIA_DEBUG; - module_param(pc_debug, int, 0); - #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) - static char *version = - "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n"; - #else - #define DEBUG(n, args...) - #endif + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +/* Choose the domain, default is 0x100 */ +static u_int domain = 0x100; + +/* 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. + */ +static int mem_speed; + +module_param(domain, int, 0); +module_param(scramble_key, int, 0); +module_param(mem_speed, int, 0); + +/*====================================================================*/ + +/* PCMCIA (Card Services) related functions */ +static void netwave_release(struct pcmcia_device *link); /* Card removal */ +static int netwave_pcmcia_config(struct pcmcia_device *arg); /* Runs after card + insertion */ +static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */ + +/* Hardware configuration */ +static void netwave_doreset(unsigned int iobase, u_char __iomem *ramBase); +static void netwave_reset(struct net_device *dev); + +/* Misc device stuff */ +static int netwave_open(struct net_device *dev); /* Open the device */ +static int netwave_close(struct net_device *dev); /* Close the device */ + +/* Packet transmission and Packet reception */ +static netdev_tx_t netwave_start_xmit( struct sk_buff *skb, + struct net_device *dev); +static int netwave_rx( struct net_device *dev); + +/* Interrupt routines */ +static irqreturn_t netwave_interrupt(int irq, void *dev_id); +static void netwave_watchdog(struct net_device *); + +/* Wireless extensions */ +static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev); + +static void set_multicast_list(struct net_device *dev); + +/* + A struct pcmcia_device structure has fields for most things that are needed + to keep track of a socket, but there will usually be some device + specific information that also needs to be kept track of. The + 'priv' pointer in a struct pcmcia_device structure can be used to point to + a device-specific private data structure, like this. + + A driver needs to provide a dev_node_t structure for each device + on a card. In some cases, there is only one device per card (for + example, ethernet cards, modems). In other cases, there may be + many actual or logical devices (SCSI adapters, memory cards with + multiple partitions). The dev_node_t structures need to be kept + in a linked list starting at the 'dev' field of a struct pcmcia_device + structure. We allocate them in the card's private data structure, + because they generally can't be allocated dynamically. +*/ + +static const struct iw_handler_def netwave_handler_def; + +#define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */ + +#define MAX_ESA 10 + +typedef struct net_addr { + u_char addr48[6]; +} net_addr; + +struct site_survey { + 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 linkQualityGoodFairBoundary; + u_char linkQualityFairPoorBoundary; + u_char sp_utilization; + 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) */ + dev_node_t node; + u_char __iomem *ramBase; + int timeoutCounter; + int lastExec; + struct timer_list watchdog; /* To avoid blocking state */ + struct site_survey nss; + struct iw_statistics iw_stats; /* Wireless stats */ +} netwave_private; + +/* + * The Netwave card is little-endian, so won't work for big endian + * systems. + */ +static inline unsigned short get_uint16(u_char __iomem *staddr) +{ + return readw(staddr); /* Return only 16 bits */ +} + +static inline short get_int16(u_char __iomem * staddr) +{ + 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. + */ +static inline void wait_WOC(unsigned int iobase) +{ + /* Spin lock */ + while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ; +} + +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 ( 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)); + } +} + +/* + * Function netwave_get_wireless_stats (dev) + * + * Wireless extensions statistics + * + */ +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.level = readb( ramBase + NETWAVE_EREG_ISPLQ); + wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f; + wstats->discard.nwid = 0L; + wstats->discard.code = 0L; + wstats->discard.misc = 0L; + + spin_unlock_irqrestore(&priv->spinlock, flags); + + return &priv->iw_stats; +} + +static const struct net_device_ops netwave_netdev_ops = { + .ndo_open = netwave_open, + .ndo_stop = netwave_close, + .ndo_start_xmit = netwave_start_xmit, + .ndo_set_multicast_list = set_multicast_list, + .ndo_tx_timeout = netwave_watchdog, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +/* + * Function netwave_attach (void) + * + * 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 + * configure the card at this point -- we wait until we receive a + * card insertion event. + */ +static int netwave_probe(struct pcmcia_device *link) +{ + struct net_device *dev; + netwave_private *priv; + - DEBUG(0, "netwave_attach()\n"); ++ dev_dbg(&link->dev, "netwave_attach()\n"); + + /* Initialize the struct pcmcia_device structure */ + dev = alloc_etherdev(sizeof(netwave_private)); + if (!dev) + return -ENOMEM; + priv = netdev_priv(dev); + priv->p_dev = link; + link->priv = dev; + + /* 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.Attributes2 = IO_DATA_PATH_WIDTH_16; */ + link->io.IOAddrLines = 5; + + /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; - link->irq.IRQInfo1 = IRQ_LEVEL_ID; ++ 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; + link->conf.ConfigIndex = 1; + + /* Netwave private struct init. link/dev/node already taken care of, + * other stuff zero'd - Jean II */ + spin_lock_init(&priv->spinlock); + + /* Netwave specific entries in the device structure */ + dev->netdev_ops = &netwave_netdev_ops; + /* wireless extensions */ + dev->wireless_handlers = &netwave_handler_def; + + dev->watchdog_timeo = TX_TIMEOUT; + - link->irq.Instance = dev; - + return netwave_pcmcia_config( link); +} /* netwave_attach */ + +/* + * Function netwave_detach (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 netwave_detach(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + - DEBUG(0, "netwave_detach(0x%p)\n", link); ++ dev_dbg(&link->dev, "netwave_detach\n"); + + netwave_release(link); + + if (link->dev_node) + unregister_netdev(dev); + + free_netdev(dev); +} /* netwave_detach */ + +/* + * Wireless Handler : get protocol name + */ +static int netwave_get_name(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + strcpy(wrqu->name, "Netwave"); + return 0; +} + +/* + * Wireless Handler : set Network ID + */ +static int netwave_set_nwid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned long flags; + unsigned int iobase = dev->base_addr; + netwave_private *priv = netdev_priv(dev); + u_char __iomem *ramBase = priv->ramBase; + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&priv->spinlock, flags); + + if(!wrqu->nwid.disabled) { + domain = wrqu->nwid.value; + 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); + 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); + } + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&priv->spinlock, flags); + + return 0; +} + +/* + * Wireless Handler : get Network ID + */ +static int netwave_get_nwid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + wrqu->nwid.value = domain; + wrqu->nwid.disabled = 0; + wrqu->nwid.fixed = 1; + return 0; +} + +/* + * Wireless Handler : set scramble key + */ +static int netwave_set_scramble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *key) +{ + unsigned long flags; + unsigned int iobase = dev->base_addr; + netwave_private *priv = netdev_priv(dev); + u_char __iomem *ramBase = priv->ramBase; + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&priv->spinlock, flags); + + scramble_key = (key[0] << 8) | key[1]; + wait_WOC(iobase); + writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); + writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); + writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); + writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&priv->spinlock, flags); + + return 0; +} + +/* + * Wireless Handler : get scramble key + */ +static int netwave_get_scramble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *key) +{ + key[1] = scramble_key & 0xff; + key[0] = (scramble_key>>8) & 0xff; + wrqu->encoding.flags = IW_ENCODE_ENABLED; + wrqu->encoding.length = 2; + return 0; +} + +/* + * Wireless Handler : get mode + */ +static int netwave_get_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + if(domain & 0x100) + wrqu->mode = IW_MODE_INFRA; + else + wrqu->mode = IW_MODE_ADHOC; + + return 0; +} + +/* + * Wireless Handler : get range info + */ +static int netwave_get_range(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct iw_range *range = (struct iw_range *) extra; + 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; /* 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 */ + + range->encoding_size[0] = 2; /* 16 bits scrambling */ + range->num_encoding_sizes = 1; + range->max_encoding_tokens = 1; /* Only one key possible */ + + return ret; +} + +/* + * Wireless Private Handler : get snapshot + */ +static int netwave_get_snap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned long flags; + unsigned int iobase = dev->base_addr; + netwave_private *priv = netdev_priv(dev); + u_char __iomem *ramBase = priv->ramBase; + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&priv->spinlock, flags); + + /* Take snapshot of environment */ + netwave_snapshot( priv, ramBase, iobase); + wrqu->data.length = priv->nss.length; + memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey)); + + priv->lastExec = jiffies; + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&priv->spinlock, flags); + + return(0); +} + +/* + * Structures to export the Wireless Handlers + * This is the stuff that are treated the wireless extensions (iwconfig) + */ + +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), + "getsitesurvey" }, +}; + +static const iw_handler netwave_handler[] = +{ + NULL, /* SIOCSIWNAME */ + netwave_get_name, /* SIOCGIWNAME */ + netwave_set_nwid, /* SIOCSIWNWID */ + netwave_get_nwid, /* SIOCGIWNWID */ + NULL, /* SIOCSIWFREQ */ + NULL, /* SIOCGIWFREQ */ + NULL, /* SIOCSIWMODE */ + netwave_get_mode, /* SIOCGIWMODE */ + NULL, /* SIOCSIWSENS */ + NULL, /* SIOCGIWSENS */ + NULL, /* SIOCSIWRANGE */ + netwave_get_range, /* SIOCGIWRANGE */ + NULL, /* SIOCSIWPRIV */ + NULL, /* SIOCGIWPRIV */ + NULL, /* SIOCSIWSTATS */ + NULL, /* SIOCGIWSTATS */ + NULL, /* SIOCSIWSPY */ + NULL, /* SIOCGIWSPY */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + NULL, /* SIOCSIWAP */ + NULL, /* SIOCGIWAP */ + NULL, /* -- hole -- */ + NULL, /* SIOCGIWAPLIST */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + NULL, /* SIOCSIWESSID */ + NULL, /* SIOCGIWESSID */ + 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 */ + netwave_set_scramble, /* SIOCSIWENCODE */ + netwave_get_scramble, /* SIOCGIWENCODE */ +}; + +static const iw_handler netwave_private_handler[] = +{ + NULL, /* SIOCIWFIRSTPRIV */ + netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */ +}; + +static const struct iw_handler_def netwave_handler_def = +{ + .num_standard = ARRAY_SIZE(netwave_handler), + .num_private = ARRAY_SIZE(netwave_private_handler), + .num_private_args = ARRAY_SIZE(netwave_private_args), + .standard = (iw_handler *) netwave_handler, + .private = (iw_handler *) netwave_private_handler, + .private_args = (struct iw_priv_args *) netwave_private_args, + .get_wireless_stats = netwave_get_wireless_stats, +}; + +/* + * Function netwave_pcmcia_config (link) + * + * 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. + * + */ + - #define CS_CHECK(fn, ret) \ - do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) - +static int netwave_pcmcia_config(struct pcmcia_device *link) { + struct net_device *dev = link->priv; + netwave_private *priv = netdev_priv(dev); - int i, j, last_ret, last_fn; ++ int i, j, ret; + win_req_t req; + memreq_t mem; + u_char __iomem *ramBase = NULL; + - DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link); ++ dev_dbg(&link->dev, "netwave_pcmcia_config\n"); + + /* + * Try allocating IO ports. This tries a few fixed addresses. + * If you want, you can also read the card's config table to + * pick addresses -- see the serial driver for an example. + */ + for (i = j = 0x0; j < 0x400; j += 0x20) { + link->io.BasePort1 = j ^ 0x300; + i = pcmcia_request_io(link, &link->io); + if (i == 0) + break; + } - if (i != 0) { - cs_error(link, RequestIO, i); ++ if (i != 0) + goto failed; - } + + /* + * Now allocate an interrupt line. Note that this does not + * actually assign a handler to the interrupt. + */ - CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); ++ ret = pcmcia_request_irq(link, &link->irq); ++ if (ret) ++ goto failed; + + /* + * This actually configures the PCMCIA socket -- setting up + * the I/O windows and the interrupt mapping. + */ - CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); ++ ret = pcmcia_request_configuration(link, &link->conf); ++ if (ret) ++ goto failed; + + /* + * Allocate a 32K memory window. Note that the struct pcmcia_device + * structure provides space for one window handle -- if your + * device needs several windows, you'll need to keep track of + * the handles in your private data structure, dev->priv. + */ - DEBUG(1, "Setting mem speed of %d\n", mem_speed); ++ dev_dbg(&link->dev, "Setting mem speed of %d\n", mem_speed); + + req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE; + req.Base = 0; req.Size = 0x8000; + req.AccessSpeed = mem_speed; - CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win)); ++ ret = pcmcia_request_window(link, &req, &link->win); ++ if (ret) ++ goto failed; + mem.CardOffset = 0x20000; mem.Page = 0; - CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); ++ ret = pcmcia_map_mem_page(link, link->win, &mem); ++ if (ret) ++ goto failed; + + /* Store base address of the common window frame */ + ramBase = ioremap(req.Base, 0x8000); + priv->ramBase = ramBase; + + dev->irq = link->irq.AssignedIRQ; + dev->base_addr = link->io.BasePort1; - SET_NETDEV_DEV(dev, &handle_to_dev(link)); ++ SET_NETDEV_DEV(dev, &link->dev); + + if (register_netdev(dev) != 0) { + printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n"); + goto failed; + } + + strcpy(priv->node.dev_name, dev->name); + link->dev_node = &priv->node; + + /* Reset card before reading physical address */ + netwave_doreset(dev->base_addr, ramBase); + + /* Read the ethernet address and fill in the Netwave registers. */ + 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, " + "id %c%c, hw_addr %pM\n", + dev->name, dev->base_addr, dev->irq, + (u_long) ramBase, + (int) readb(ramBase+NETWAVE_EREG_NI), + (int) readb(ramBase+NETWAVE_EREG_NI+1), + dev->dev_addr); + + /* get revision words */ + printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n", + get_uint16(ramBase + NETWAVE_EREG_ARW), + get_uint16(ramBase + NETWAVE_EREG_ARW+2)); + return 0; + - cs_failed: - cs_error(link, last_fn, last_ret); +failed: + netwave_release(link); + return -ENODEV; +} /* netwave_pcmcia_config */ + +/* + * Function netwave_release (arg) + * + * After a card is removed, netwave_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 netwave_release(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + netwave_private *priv = netdev_priv(dev); + - DEBUG(0, "netwave_release(0x%p)\n", link); ++ dev_dbg(&link->dev, "netwave_release\n"); + + pcmcia_disable_device(link); + if (link->win) + iounmap(priv->ramBase); +} + +static int netwave_suspend(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) + netif_device_detach(dev); + + return 0; +} + +static int netwave_resume(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) { + netwave_reset(dev); + netif_device_attach(dev); + } + + return 0; +} + + +/* + * Function netwave_doreset (ioBase, ramBase) + * + * Proper hardware reset of the card. + */ +static void netwave_doreset(unsigned int ioBase, u_char __iomem *ramBase) +{ + /* Reset card */ + wait_WOC(ioBase); + outb(0x80, ioBase + NETWAVE_REG_PMR); + writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */ + outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */ +} + +/* + * Function netwave_reset (dev) + * + * Reset and restore all of the netwave registers + */ +static void netwave_reset(struct net_device *dev) { + /* u_char state; */ + netwave_private *priv = netdev_priv(dev); + u_char __iomem *ramBase = priv->ramBase; + unsigned int iobase = dev->base_addr; + - DEBUG(0, "netwave_reset: Done with hardware reset\n"); ++ pr_debug("netwave_reset: Done with hardware reset\n"); + + priv->timeoutCounter = 0; + + /* 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(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); + 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_SSK, ramBase + NETWAVE_EREG_CB + 0); + writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); + writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); + 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, + * RxErr and RxRdy + */ + wait_WOC(iobase); + outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR); + + /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36 + * waitWOC + * 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) + */ +static int netwave_hw_xmit(unsigned char* data, int len, + struct net_device* dev) { + unsigned long flags; + unsigned int TxFreeList, + curBuff, + MaxData, + DataOffset; + int tmpcount; + + netwave_private *priv = netdev_priv(dev); + u_char __iomem * ramBase = priv->ramBase; + unsigned int iobase = dev->base_addr; + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&priv->spinlock, flags); + + /* Check if there are transmit buffers available */ + wait_WOC(iobase); + if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) { + /* No buffers available */ + printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n", + dev->name); + spin_unlock_irqrestore(&priv->spinlock, flags); + return 1; + } + + dev->stats.tx_bytes += len; + - DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n", ++ pr_debug("Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n", + readb(ramBase + NETWAVE_EREG_SPCQ), + readb(ramBase + NETWAVE_EREG_SPU), + readb(ramBase + NETWAVE_EREG_LIF), + readb(ramBase + NETWAVE_EREG_ISPLQ)); + + /* Now try to insert it into the adapters free memory */ + wait_WOC(iobase); + TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP); + MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2); + DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4); + - DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n", ++ pr_debug("TxFreeList %x, MaxData %x, DataOffset %x\n", + TxFreeList, MaxData, DataOffset); + + /* Copy packet to the adapter fragment buffers */ + curBuff = TxFreeList; + tmpcount = 0; + while (tmpcount < len) { + 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); + writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1); + writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); + writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); + + spin_unlock_irqrestore(&priv->spinlock, flags); + return 0; +} + +static netdev_tx_t netwave_start_xmit(struct sk_buff *skb, + struct net_device *dev) { + /* This flag indicate that the hardware can't perform a transmission. + * Theoritically, NET3 check it before sending a packet to the driver, + * but in fact it never do that and pool continuously. + * As the watchdog will abort too long transmissions, we are quite safe... + */ + + netif_stop_queue(dev); + + { + 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: + * 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 netwave_interrupt(int irq, void* dev_id) +{ + unsigned int iobase; + u_char __iomem *ramBase; + struct net_device *dev = (struct net_device *)dev_id; + 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); + 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)) { - DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x " ++ pr_debug("netwave_interrupt: Interrupt with status 0x%x " + "from removed or suspended card!\n", status); + break; + } + + /* RxRdy */ + if (status & 0x80) { + netwave_rx(dev); + /* wait_WOC(iobase); */ + /* RxRdy cannot be reset directly by the host */ + } + /* RxErr */ + if (status & 0x40) { + u_char 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 + * 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! + */ + wait_WOC(iobase); + writeb(0x40, ramBase + NETWAVE_EREG_ASCC); + + /* Remember to count up dev->stats on error packets */ + ++dev->stats.rx_errors; + } + /* TxDN */ + if (status & 0x20) { + int txStatus; + + txStatus = readb(ramBase + NETWAVE_EREG_TSER); - DEBUG(3, "Transmit done. TSER = %x id %x\n", ++ 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) + ++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 + * TxGU and TxNOAP is set. (Those are the only ones + * to set TxErr). + */ - DEBUG(3, "netwave_interrupt: TxDN with error status %x\n", ++ 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); + ++dev->stats.tx_errors; + } - DEBUG(3, "New status is TSER %x ASR %x\n", ++ pr_debug("New status is TSER %x ASR %x\n", + readb(ramBase + NETWAVE_EREG_TSER), + inb(iobase + NETWAVE_REG_ASR)); + + netif_wake_queue(dev); + } + /* TxBA, this would trigger on all error packets received */ + /* if (status & 0x01) { - DEBUG(4, "Transmit buffers available, %x\n", status); ++ pr_debug("Transmit buffers available, %x\n", status); + } + */ + } + /* Handled if we looped at least one time - Jean II */ + return IRQ_RETVAL(i); +} /* netwave_interrupt */ + +/* + * Function netwave_watchdog (a) + * + * Watchdog : when we start a transmission, we set a timer in the + * kernel. If the transmission complete, this timer is disabled. If + * it expire, we reset the card. + * + */ +static void netwave_watchdog(struct net_device *dev) { + - DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name); ++ pr_debug("%s: netwave_watchdog: watchdog timer expired\n", dev->name); + netwave_reset(dev); + dev->trans_start = jiffies; + netif_wake_queue(dev); +} /* netwave_watchdog */ + +static int netwave_rx(struct net_device *dev) +{ + netwave_private *priv = netdev_priv(dev); + u_char __iomem *ramBase = priv->ramBase; + unsigned int iobase = dev->base_addr; + u_char rxStatus; + struct sk_buff *skb = NULL; + unsigned int curBuffer, + rcvList; + int rcvLen; + int tmpcount = 0; + int dataCount, dataOffset; + int i; + u_char *ptr; + - DEBUG(3, "xinw_rx: Receiving ... \n"); ++ 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); + 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", + rcvLen); + return 0; + } + + skb = dev_alloc_skb(rcvLen+5); + if (skb == NULL) { - DEBUG(1, "netwave_rx: Could not allocate an sk_buff of " ++ pr_debug("netwave_rx: Could not allocate an sk_buff of " + "length %d\n", rcvLen); + ++dev->stats.rx_dropped; + /* Tell the adapter to skip the packet */ + wait_WOC(iobase); + writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); + writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); + return 0; + } + + skb_reserve( skb, 2); /* Align IP on 16 byte */ + skb_put( skb, rcvLen); + + /* Copy packet fragments to the skb data area */ + ptr = (u_char*) skb->data; + curBuffer = rcvList; + 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); + + dev->stats.rx_packets++; + dev->stats.rx_bytes += rcvLen; + + /* Got the packet, tell the adapter to skip it */ + wait_WOC(iobase); + writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); + writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); - DEBUG(3, "Packet reception ok\n"); ++ pr_debug("Packet reception ok\n"); + } + return 0; +} + +static int netwave_open(struct net_device *dev) { + netwave_private *priv = netdev_priv(dev); + struct pcmcia_device *link = priv->p_dev; + - DEBUG(1, "netwave_open: starting.\n"); ++ dev_dbg(&link->dev, "netwave_open: starting.\n"); + + if (!pcmcia_dev_present(link)) + return -ENODEV; + + link->open++; + + netif_start_queue(dev); + netwave_reset(dev); + + return 0; +} + +static int netwave_close(struct net_device *dev) { + netwave_private *priv = netdev_priv(dev); + struct pcmcia_device *link = priv->p_dev; + - DEBUG(1, "netwave_close: finishing.\n"); ++ dev_dbg(&link->dev, "netwave_close: finishing.\n"); + + link->open--; + netif_stop_queue(dev); + + return 0; +} + +static struct pcmcia_device_id netwave_ids[] = { + PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28), + PCMCIA_DEVICE_NULL, +}; +MODULE_DEVICE_TABLE(pcmcia, netwave_ids); + +static struct pcmcia_driver netwave_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "netwave_cs", + }, + .probe = netwave_probe, + .remove = netwave_detach, + .id_table = netwave_ids, + .suspend = netwave_suspend, + .resume = netwave_resume, +}; + +static int __init init_netwave_cs(void) +{ + return pcmcia_register_driver(&netwave_driver); +} + +static void __exit exit_netwave_cs(void) +{ + pcmcia_unregister_driver(&netwave_driver); +} + +module_init(init_netwave_cs); +module_exit(exit_netwave_cs); + +/* 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 set_multicast_list(struct net_device *dev) +{ + unsigned int iobase = dev->base_addr; + netwave_private *priv = netdev_priv(dev); + u_char __iomem * ramBase = priv->ramBase; + u_char rcvMode = 0; + +#ifdef PCMCIA_DEBUG - if (pc_debug > 2) { - static int old; ++ { ++ xstatic int old; + if (old != dev->mc_count) { + old = dev->mc_count; - DEBUG(0, "%s: setting Rx mode to %d addresses.\n", ++ pr_debug("%s: setting Rx mode to %d addresses.\n", + dev->name, dev->mc_count); + } + } +#endif + + if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { + /* Multicast Mode */ + rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast; + } else if (dev->flags & IFF_PROMISC) { + /* Promiscous mode */ + rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast; + } else { + /* Normal mode */ + rcvMode = rxConfRxEna + rxConfBcast; + } + + /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/ + /* Now set receive mode */ + wait_WOC(iobase); + writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); + writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1); + writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); +} +MODULE_LICENSE("GPL"); diff --cc drivers/staging/wavelan/wavelan_cs.c index 431a20ec6db6,000000000000..33918fd5b231 mode 100644,000000..100644 --- a/drivers/staging/wavelan/wavelan_cs.c +++ b/drivers/staging/wavelan/wavelan_cs.c @@@ -1,4635 -1,0 +1,4610 @@@ +/* + * Wavelan Pcmcia driver + * + * Jean II - HPLB '96 + * + * Reorganisation and extension of the driver. + * Original copyright follow. See wavelan_cs.p.h for details. + * + * This code is derived from Anthony D. Joseph's code and all the changes here + * are also under the original copyright below. + * + * This code supports version 2.00 of WaveLAN/PCMCIA cards (2.4GHz), and + * can work on Linux 2.0.36 with support of David Hinds' PCMCIA Card Services + * + * Joe Finney (joe@comp.lancs.ac.uk) at Lancaster University in UK added + * critical code in the routine to initialize the Modem Management Controller. + * + * Thanks to Alan Cox and Bruce Janson for their advice. + * + * -- Yunzhou Li (scip4166@nus.sg) + * +#ifdef WAVELAN_ROAMING + * Roaming support added 07/22/98 by Justin Seger (jseger@media.mit.edu) + * based on patch by Joe Finney from Lancaster University. +#endif + * + * Lucent (formerly AT&T GIS, formerly NCR) WaveLAN PCMCIA card: An + * Ethernet-like radio transceiver controlled by an Intel 82593 coprocessor. + * + * A non-shared memory PCMCIA ethernet driver for linux + * + * ISA version modified to support PCMCIA by Anthony Joseph (adj@lcs.mit.edu) + * + * + * Joseph O'Sullivan & John Langford (josullvn@cs.cmu.edu & jcl@cs.cmu.edu) + * + * Apr 2 '98 made changes to bring the i82593 control/int handling in line + * with offical specs... + * + **************************************************************************** + * Copyright 1995 + * Anthony D. Joseph + * Massachusetts Institute of Technology + * + * Permission to use, copy, modify, and distribute this program + * for any purpose and without fee is hereby granted, provided + * that this copyright and permission notice appear on all copies + * and supporting documentation, the name of M.I.T. not be used + * in advertising or publicity pertaining to distribution of the + * program without specific prior permission, and notice be given + * in supporting documentation that copying and distribution is + * by permission of M.I.T. M.I.T. makes no representations about + * the suitability of this software for any purpose. It is pro- + * vided "as is" without express or implied warranty. + **************************************************************************** + * + */ + +/* Do *NOT* add other headers here, you are guaranteed to be wrong - Jean II */ +#include "wavelan_cs.p.h" /* Private header */ + +#ifdef WAVELAN_ROAMING +static void wl_cell_expiry(unsigned long data); +static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp); +static void wv_nwid_filter(unsigned char mode, net_local *lp); +#endif /* WAVELAN_ROAMING */ + +/************************* MISC SUBROUTINES **************************/ +/* + * Subroutines which won't fit in one of the following category + * (wavelan modem or i82593) + */ + +/******************* MODEM MANAGEMENT SUBROUTINES *******************/ +/* + * Useful subroutines to manage the modem of the wavelan + */ + +/*------------------------------------------------------------------*/ +/* + * Read from card's Host Adaptor Status Register. + */ +static inline u_char +hasr_read(u_long base) +{ + return(inb(HASR(base))); +} /* hasr_read */ + +/*------------------------------------------------------------------*/ +/* + * Write to card's Host Adapter Command Register. + */ +static inline void +hacr_write(u_long base, + u_char hacr) +{ + outb(hacr, HACR(base)); +} /* hacr_write */ + +/*------------------------------------------------------------------*/ +/* + * Write to card's Host Adapter Command Register. Include a delay for + * those times when it is needed. + */ +static void +hacr_write_slow(u_long base, + u_char hacr) +{ + hacr_write(base, hacr); + /* delay might only be needed sometimes */ + mdelay(1); +} /* hacr_write_slow */ + +/*------------------------------------------------------------------*/ +/* + * Read the Parameter Storage Area from the WaveLAN card's memory + */ +static void +psa_read(struct net_device * dev, + int o, /* offset in PSA */ + u_char * b, /* buffer to fill */ + int n) /* size to read */ +{ + net_local *lp = netdev_priv(dev); + u_char __iomem *ptr = lp->mem + PSA_ADDR + (o << 1); + + while(n-- > 0) + { + *b++ = readb(ptr); + /* Due to a lack of address decode pins, the WaveLAN PCMCIA card + * only supports reading even memory addresses. That means the + * increment here MUST be two. + * Because of that, we can't use memcpy_fromio()... + */ + ptr += 2; + } +} /* psa_read */ + +/*------------------------------------------------------------------*/ +/* + * Write the Parameter Storage Area to the WaveLAN card's memory + */ +static void +psa_write(struct net_device * dev, + int o, /* Offset in psa */ + u_char * b, /* Buffer in memory */ + int n) /* Length of buffer */ +{ + net_local *lp = netdev_priv(dev); + u_char __iomem *ptr = lp->mem + PSA_ADDR + (o << 1); + int count = 0; + unsigned int base = dev->base_addr; + /* As there seem to have no flag PSA_BUSY as in the ISA model, we are + * oblige to verify this address to know when the PSA is ready... */ + volatile u_char __iomem *verify = lp->mem + PSA_ADDR + + (psaoff(0, psa_comp_number) << 1); + + /* Authorize writing to PSA */ + hacr_write(base, HACR_PWR_STAT | HACR_ROM_WEN); + + while(n-- > 0) + { + /* write to PSA */ + writeb(*b++, ptr); + ptr += 2; + + /* I don't have the spec, so I don't know what the correct + * sequence to write is. This hack seem to work for me... */ + count = 0; + while((readb(verify) != PSA_COMP_PCMCIA_915) && (count++ < 100)) + mdelay(1); + } + + /* Put the host interface back in standard state */ + hacr_write(base, HACR_DEFAULT); +} /* psa_write */ + +#ifdef SET_PSA_CRC +/*------------------------------------------------------------------*/ +/* + * Calculate the PSA CRC + * Thanks to Valster, Nico for the code + * NOTE: By specifying a length including the CRC position the + * returned value should be zero. (i.e. a correct checksum in the PSA) + * + * The Windows drivers don't use the CRC, but the AP and the PtP tool + * depend on it. + */ +static u_short +psa_crc(unsigned char * psa, /* The PSA */ + int size) /* Number of short for CRC */ +{ + int byte_cnt; /* Loop on the PSA */ + u_short crc_bytes = 0; /* Data in the PSA */ + int bit_cnt; /* Loop on the bits of the short */ + + for(byte_cnt = 0; byte_cnt < size; byte_cnt++ ) + { + crc_bytes ^= psa[byte_cnt]; /* Its an xor */ + + for(bit_cnt = 1; bit_cnt < 9; bit_cnt++ ) + { + if(crc_bytes & 0x0001) + crc_bytes = (crc_bytes >> 1) ^ 0xA001; + else + crc_bytes >>= 1 ; + } + } + + return crc_bytes; +} /* psa_crc */ +#endif /* SET_PSA_CRC */ + +/*------------------------------------------------------------------*/ +/* + * update the checksum field in the Wavelan's PSA + */ +static void +update_psa_checksum(struct net_device * dev) +{ +#ifdef SET_PSA_CRC + psa_t psa; + u_short crc; + + /* read the parameter storage area */ + psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); + + /* update the checksum */ + crc = psa_crc((unsigned char *) &psa, + sizeof(psa) - sizeof(psa.psa_crc[0]) - sizeof(psa.psa_crc[1]) + - sizeof(psa.psa_crc_status)); + + psa.psa_crc[0] = crc & 0xFF; + psa.psa_crc[1] = (crc & 0xFF00) >> 8; + + /* Write it ! */ + psa_write(dev, (char *)&psa.psa_crc - (char *)&psa, + (unsigned char *)&psa.psa_crc, 2); + +#ifdef DEBUG_IOCTL_INFO + printk (KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02x\n", + dev->name, psa.psa_crc[0], psa.psa_crc[1]); + + /* Check again (luxury !) */ + crc = psa_crc((unsigned char *) &psa, + sizeof(psa) - sizeof(psa.psa_crc_status)); + + if(crc != 0) + printk(KERN_WARNING "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)\n", dev->name); +#endif /* DEBUG_IOCTL_INFO */ +#endif /* SET_PSA_CRC */ +} /* update_psa_checksum */ + +/*------------------------------------------------------------------*/ +/* + * Write 1 byte to the MMC. + */ +static void +mmc_out(u_long base, + u_short o, + u_char d) +{ + int count = 0; + + /* Wait for MMC to go idle */ + while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) + udelay(10); + + outb((u_char)((o << 1) | MMR_MMI_WR), MMR(base)); + outb(d, MMD(base)); +} + +/*------------------------------------------------------------------*/ +/* + * Routine to write bytes to the Modem Management Controller. + * We start by the end because it is the way it should be ! + */ +static void +mmc_write(u_long base, + u_char o, + u_char * b, + int n) +{ + o += n; + b += n; + + while(n-- > 0 ) + mmc_out(base, --o, *(--b)); +} /* mmc_write */ + +/*------------------------------------------------------------------*/ +/* + * Read 1 byte from the MMC. + * Optimised version for 1 byte, avoid using memory... + */ +static u_char +mmc_in(u_long base, + u_short o) +{ + int count = 0; + + while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) + udelay(10); + outb(o << 1, MMR(base)); /* Set the read address */ + + outb(0, MMD(base)); /* Required dummy write */ + + while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY)) + udelay(10); + return (u_char) (inb(MMD(base))); /* Now do the actual read */ +} + +/*------------------------------------------------------------------*/ +/* + * Routine to read bytes from the Modem Management Controller. + * The implementation is complicated by a lack of address lines, + * which prevents decoding of the low-order bit. + * (code has just been moved in the above function) + * We start by the end because it is the way it should be ! + */ +static void +mmc_read(u_long base, + u_char o, + u_char * b, + int n) +{ + o += n; + b += n; + + while(n-- > 0) + *(--b) = mmc_in(base, --o); +} /* mmc_read */ + +/*------------------------------------------------------------------*/ +/* + * Get the type of encryption available... + */ +static inline int +mmc_encr(u_long base) /* i/o port of the card */ +{ + int temp; + + temp = mmc_in(base, mmroff(0, mmr_des_avail)); + if((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES)) + return 0; + else + return temp; +} + +/*------------------------------------------------------------------*/ +/* + * Wait for the frequency EEprom to complete a command... + */ +static void +fee_wait(u_long base, /* i/o port of the card */ + int delay, /* Base delay to wait for */ + int number) /* Number of time to wait */ +{ + int count = 0; /* Wait only a limited time */ + + while((count++ < number) && + (mmc_in(base, mmroff(0, mmr_fee_status)) & MMR_FEE_STATUS_BUSY)) + udelay(delay); +} + +/*------------------------------------------------------------------*/ +/* + * Read bytes from the Frequency EEprom (frequency select cards). + */ +static void +fee_read(u_long base, /* i/o port of the card */ + u_short o, /* destination offset */ + u_short * b, /* data buffer */ + int n) /* number of registers */ +{ + b += n; /* Position at the end of the area */ + + /* Write the address */ + mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1); + + /* Loop on all buffer */ + while(n-- > 0) + { + /* Write the read command */ + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_READ); + + /* Wait until EEprom is ready (should be quick !) */ + fee_wait(base, 10, 100); + + /* Read the value */ + *--b = ((mmc_in(base, mmroff(0, mmr_fee_data_h)) << 8) | + mmc_in(base, mmroff(0, mmr_fee_data_l))); + } +} + + +/*------------------------------------------------------------------*/ +/* + * Write bytes from the Frequency EEprom (frequency select cards). + * This is a bit complicated, because the frequency eeprom has to + * be unprotected and the write enabled. + * Jean II + */ +static void +fee_write(u_long base, /* i/o port of the card */ + u_short o, /* destination offset */ + u_short * b, /* data buffer */ + int n) /* number of registers */ +{ + b += n; /* Position at the end of the area */ + +#ifdef EEPROM_IS_PROTECTED /* disabled */ +#ifdef DOESNT_SEEM_TO_WORK /* disabled */ + /* Ask to read the protected register */ + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD); + + fee_wait(base, 10, 100); + + /* Read the protected register */ + printk("Protected 2 : %02X-%02X\n", + mmc_in(base, mmroff(0, mmr_fee_data_h)), + mmc_in(base, mmroff(0, mmr_fee_data_l))); +#endif /* DOESNT_SEEM_TO_WORK */ + + /* Enable protected register */ + mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN); + + fee_wait(base, 10, 100); + + /* Unprotect area */ + mmc_out(base, mmwoff(0, mmw_fee_addr), o + n); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); +#ifdef DOESNT_SEEM_TO_WORK /* disabled */ + /* Or use : */ + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR); +#endif /* DOESNT_SEEM_TO_WORK */ + + fee_wait(base, 10, 100); +#endif /* EEPROM_IS_PROTECTED */ + + /* Write enable */ + mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN); + + fee_wait(base, 10, 100); + + /* Write the EEprom address */ + mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1); + + /* Loop on all buffer */ + while(n-- > 0) + { + /* Write the value */ + mmc_out(base, mmwoff(0, mmw_fee_data_h), (*--b) >> 8); + mmc_out(base, mmwoff(0, mmw_fee_data_l), *b & 0xFF); + + /* Write the write command */ + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WRITE); + + /* Wavelan doc says : wait at least 10 ms for EEBUSY = 0 */ + mdelay(10); + fee_wait(base, 10, 100); + } + + /* Write disable */ + mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS); + + fee_wait(base, 10, 100); + +#ifdef EEPROM_IS_PROTECTED /* disabled */ + /* Reprotect EEprom */ + mmc_out(base, mmwoff(0, mmw_fee_addr), 0x00); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); + + fee_wait(base, 10, 100); +#endif /* EEPROM_IS_PROTECTED */ +} + +/******************* WaveLAN Roaming routines... ********************/ + +#ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */ + +static unsigned char WAVELAN_BEACON_ADDRESS[] = {0x09,0x00,0x0e,0x20,0x03,0x00}; + +static void wv_roam_init(struct net_device *dev) +{ + net_local *lp= netdev_priv(dev); + + /* Do not remove this unless you have a good reason */ + printk(KERN_NOTICE "%s: Warning, you have enabled roaming on" + " device %s !\n", dev->name, dev->name); + printk(KERN_NOTICE "Roaming is currently an experimental unsupported feature" + " of the Wavelan driver.\n"); + printk(KERN_NOTICE "It may work, but may also make the driver behave in" + " erratic ways or crash.\n"); + + lp->wavepoint_table.head=NULL; /* Initialise WavePoint table */ + lp->wavepoint_table.num_wavepoints=0; + lp->wavepoint_table.locked=0; + lp->curr_point=NULL; /* No default WavePoint */ + lp->cell_search=0; + + lp->cell_timer.data=(long)lp; /* Start cell expiry timer */ + lp->cell_timer.function=wl_cell_expiry; + lp->cell_timer.expires=jiffies+CELL_TIMEOUT; + add_timer(&lp->cell_timer); + + wv_nwid_filter(NWID_PROMISC,lp) ; /* Enter NWID promiscuous mode */ + /* to build up a good WavePoint */ + /* table... */ + printk(KERN_DEBUG "WaveLAN: Roaming enabled on device %s\n",dev->name); +} + +static void wv_roam_cleanup(struct net_device *dev) +{ + wavepoint_history *ptr,*old_ptr; + net_local *lp= netdev_priv(dev); + + printk(KERN_DEBUG "WaveLAN: Roaming Disabled on device %s\n",dev->name); + + /* Fixme : maybe we should check that the timer exist before deleting it */ + del_timer(&lp->cell_timer); /* Remove cell expiry timer */ + ptr=lp->wavepoint_table.head; /* Clear device's WavePoint table */ + while(ptr!=NULL) + { + old_ptr=ptr; + ptr=ptr->next; + wl_del_wavepoint(old_ptr,lp); + } +} + +/* Enable/Disable NWID promiscuous mode on a given device */ +static void wv_nwid_filter(unsigned char mode, net_local *lp) +{ + mm_t m; + unsigned long flags; + +#ifdef WAVELAN_ROAMING_DEBUG + printk(KERN_DEBUG "WaveLAN: NWID promisc %s, device %s\n",(mode==NWID_PROMISC) ? "on" : "off", lp->dev->name); +#endif + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&lp->spinlock, flags); + + m.w.mmw_loopt_sel = (mode==NWID_PROMISC) ? MMW_LOOPT_SEL_DIS_NWID : 0x00; + mmc_write(lp->dev->base_addr, (char *)&m.w.mmw_loopt_sel - (char *)&m, (unsigned char *)&m.w.mmw_loopt_sel, 1); + + if(mode==NWID_PROMISC) + lp->cell_search=1; + else + lp->cell_search=0; + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&lp->spinlock, flags); +} + +/* Find a record in the WavePoint table matching a given NWID */ +static wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp) +{ + wavepoint_history *ptr=lp->wavepoint_table.head; + + while(ptr!=NULL){ + if(ptr->nwid==nwid) + return ptr; + ptr=ptr->next; + } + return NULL; +} + +/* Create a new wavepoint table entry */ +static wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp) +{ + wavepoint_history *new_wavepoint; + +#ifdef WAVELAN_ROAMING_DEBUG + printk(KERN_DEBUG "WaveLAN: New Wavepoint, NWID:%.4X\n",nwid); +#endif + + if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS) + return NULL; + + new_wavepoint = kmalloc(sizeof(wavepoint_history),GFP_ATOMIC); + if(new_wavepoint==NULL) + return NULL; + + new_wavepoint->nwid=nwid; /* New WavePoints NWID */ + new_wavepoint->average_fast=0; /* Running Averages..*/ + new_wavepoint->average_slow=0; + new_wavepoint->qualptr=0; /* Start of ringbuffer */ + new_wavepoint->last_seq=seq-1; /* Last sequence no.seen */ + memset(new_wavepoint->sigqual,0,WAVEPOINT_HISTORY);/* Empty ringbuffer */ + + new_wavepoint->next=lp->wavepoint_table.head;/* Add to wavepoint table */ + new_wavepoint->prev=NULL; + + if(lp->wavepoint_table.head!=NULL) + lp->wavepoint_table.head->prev=new_wavepoint; + + lp->wavepoint_table.head=new_wavepoint; + + lp->wavepoint_table.num_wavepoints++; /* no. of visible wavepoints */ + + return new_wavepoint; +} + +/* Remove a wavepoint entry from WavePoint table */ +static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp) +{ + if(wavepoint==NULL) + return; + + if(lp->curr_point==wavepoint) + lp->curr_point=NULL; + + if(wavepoint->prev!=NULL) + wavepoint->prev->next=wavepoint->next; + + if(wavepoint->next!=NULL) + wavepoint->next->prev=wavepoint->prev; + + if(lp->wavepoint_table.head==wavepoint) + lp->wavepoint_table.head=wavepoint->next; + + lp->wavepoint_table.num_wavepoints--; + kfree(wavepoint); +} + +/* Timer callback function - checks WavePoint table for stale entries */ +static void wl_cell_expiry(unsigned long data) +{ + net_local *lp=(net_local *)data; + wavepoint_history *wavepoint=lp->wavepoint_table.head,*old_point; + +#if WAVELAN_ROAMING_DEBUG > 1 + printk(KERN_DEBUG "WaveLAN: Wavepoint timeout, dev %s\n",lp->dev->name); +#endif + + if(lp->wavepoint_table.locked) + { +#if WAVELAN_ROAMING_DEBUG > 1 + printk(KERN_DEBUG "WaveLAN: Wavepoint table locked...\n"); +#endif + + lp->cell_timer.expires=jiffies+1; /* If table in use, come back later */ + add_timer(&lp->cell_timer); + return; + } + + while(wavepoint!=NULL) + { + if(time_after(jiffies, wavepoint->last_seen + CELL_TIMEOUT)) + { +#ifdef WAVELAN_ROAMING_DEBUG + printk(KERN_DEBUG "WaveLAN: Bye bye %.4X\n",wavepoint->nwid); +#endif + + old_point=wavepoint; + wavepoint=wavepoint->next; + wl_del_wavepoint(old_point,lp); + } + else + wavepoint=wavepoint->next; + } + lp->cell_timer.expires=jiffies+CELL_TIMEOUT; + add_timer(&lp->cell_timer); +} + +/* Update SNR history of a wavepoint */ +static void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq) +{ + int i=0,num_missed=0,ptr=0; + int average_fast=0,average_slow=0; + + num_missed=(seq-wavepoint->last_seq)%WAVEPOINT_HISTORY;/* Have we missed + any beacons? */ + if(num_missed) + for(i=0;isigqual[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;isigqual[ptr++]; + ptr %=WAVEPOINT_HISTORY; + } + + average_slow=average_fast; + for(i=WAVEPOINT_FAST_HISTORY;isigqual[ptr++]; + ptr %=WAVEPOINT_HISTORY; + } + + wavepoint->average_fast=average_fast/WAVEPOINT_FAST_HISTORY; + wavepoint->average_slow=average_slow/WAVEPOINT_HISTORY; +} + +/* Perform a handover to a new WavePoint */ +static void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp) +{ + unsigned int base = lp->dev->base_addr; + mm_t m; + unsigned long flags; + + if(wavepoint==lp->curr_point) /* Sanity check... */ + { + wv_nwid_filter(!NWID_PROMISC,lp); + return; + } + +#ifdef WAVELAN_ROAMING_DEBUG + printk(KERN_DEBUG "WaveLAN: Doing handover to %.4X, dev %s\n",wavepoint->nwid,lp->dev->name); +#endif + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&lp->spinlock, flags); + + m.w.mmw_netw_id_l = wavepoint->nwid & 0xFF; + m.w.mmw_netw_id_h = (wavepoint->nwid & 0xFF00) >> 8; + + mmc_write(base, (char *)&m.w.mmw_netw_id_l - (char *)&m, (unsigned char *)&m.w.mmw_netw_id_l, 2); + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + wv_nwid_filter(!NWID_PROMISC,lp); + lp->curr_point=wavepoint; +} + +/* Called when a WavePoint beacon is received */ +static void wl_roam_gather(struct net_device * dev, + u_char * hdr, /* Beacon header */ + u_char * stats) /* SNR, Signal quality + of packet */ +{ + wavepoint_beacon *beacon= (wavepoint_beacon *)hdr; /* Rcvd. Beacon */ + unsigned short nwid=ntohs(beacon->nwid); + unsigned short sigqual=stats[2] & MMR_SGNL_QUAL; /* SNR of beacon */ + wavepoint_history *wavepoint=NULL; /* WavePoint table entry */ + net_local *lp = netdev_priv(dev); /* Device info */ + +#ifdef I_NEED_THIS_FEATURE + /* Some people don't need this, some other may need it */ + nwid=nwid^ntohs(beacon->domain_id); +#endif + +#if WAVELAN_ROAMING_DEBUG > 1 + printk(KERN_DEBUG "WaveLAN: beacon, dev %s:\n",dev->name); + printk(KERN_DEBUG "Domain: %.4X NWID: %.4X SigQual=%d\n",ntohs(beacon->domain_id),nwid,sigqual); +#endif + + lp->wavepoint_table.locked=1; /* */ + + 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; /* :-) */ +} + +/* Test this MAC frame a WavePoint beacon */ +static inline int WAVELAN_BEACON(unsigned char *data) +{ + wavepoint_beacon *beacon= (wavepoint_beacon *)data; + static const wavepoint_beacon beacon_template={0xaa,0xaa,0x03,0x08,0x00,0x0e,0x20,0x03,0x00}; + + if(memcmp(beacon,&beacon_template,9)==0) + return 1; + else + return 0; +} +#endif /* WAVELAN_ROAMING */ + +/************************ I82593 SUBROUTINES *************************/ +/* + * Useful subroutines to manage the Ethernet controller + */ + +/*------------------------------------------------------------------*/ +/* + * Routine to synchronously send a command to the i82593 chip. + * Should be called with interrupts disabled. + * (called by wv_packet_write(), wv_ru_stop(), wv_ru_start(), + * wv_82593_config() & wv_diag()) + */ +static int +wv_82593_cmd(struct net_device * dev, + char * str, + int cmd, + int result) +{ + unsigned int base = dev->base_addr; + int status; + int wait_completed; + long spin; + + /* Spin until the chip finishes executing its current command (if any) */ + spin = 1000; + do + { + /* Time calibration of the loop */ + udelay(10); + + /* Read the interrupt register */ + outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); + status = inb(LCSR(base)); + } + while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0)); + + /* If the interrupt hasn't been posted */ + if (spin < 0) { +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "wv_82593_cmd: %s timeout (previous command), status 0x%02x\n", + str, status); +#endif + return(FALSE); + } + + /* Issue the command to the controller */ + outb(cmd, LCCR(base)); + + /* If we don't have to check the result of the command + * Note : this mean that the irq handler will deal with that */ + if(result == SR0_NO_RESULT) + return(TRUE); + + /* We are waiting for command completion */ + wait_completed = TRUE; + + /* Busy wait while the LAN controller executes the command. */ + spin = 1000; + do + { + /* Time calibration of the loop */ + udelay(10); + + /* Read the interrupt register */ + outb(CR0_STATUS_0 | OP0_NOP, LCCR(base)); + status = inb(LCSR(base)); + + /* Check if there was an interrupt posted */ + if((status & SR0_INTERRUPT)) + { + /* Acknowledge the interrupt */ + outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); + + /* Check if interrupt is a command completion */ + if(((status & SR0_BOTH_RX_TX) != SR0_BOTH_RX_TX) && + ((status & SR0_BOTH_RX_TX) != 0x0) && + !(status & SR0_RECEPTION)) + { + /* Signal command completion */ + wait_completed = FALSE; + } + else + { + /* Note : Rx interrupts will be handled later, because we can + * handle multiple Rx packets at once */ +#ifdef DEBUG_INTERRUPT_INFO + printk(KERN_INFO "wv_82593_cmd: not our interrupt\n"); +#endif + } + } + } + while(wait_completed && (spin-- > 0)); + + /* If the interrupt hasn't be posted */ + if(wait_completed) + { +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "wv_82593_cmd: %s timeout, status 0x%02x\n", + str, status); +#endif + return(FALSE); + } + + /* Check the return code returned by the card (see above) against + * the expected return code provided by the caller */ + if((status & SR0_EVENT_MASK) != result) + { +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "wv_82593_cmd: %s failed, status = 0x%x\n", + str, status); +#endif + return(FALSE); + } + + return(TRUE); +} /* wv_82593_cmd */ + +/*------------------------------------------------------------------*/ +/* + * This routine does a 593 op-code number 7, and obtains the diagnose + * status for the WaveLAN. + */ +static inline int +wv_diag(struct net_device * dev) +{ + return(wv_82593_cmd(dev, "wv_diag(): diagnose", + OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED)); +} /* wv_diag */ + +/*------------------------------------------------------------------*/ +/* + * Routine to read len bytes from the i82593's ring buffer, starting at + * chip address addr. The results read from the chip are stored in buf. + * The return value is the address to use for next the call. + */ +static int +read_ringbuf(struct net_device * dev, + int addr, + char * buf, + int len) +{ + unsigned int base = dev->base_addr; + int ring_ptr = addr; + int chunk_len; + char * buf_ptr = buf; + + /* Get all the buffer */ + while(len > 0) + { + /* Position the Program I/O Register at the ring buffer pointer */ + outb(ring_ptr & 0xff, PIORL(base)); + outb(((ring_ptr >> 8) & PIORH_MASK), PIORH(base)); + + /* First, determine how much we can read without wrapping around the + ring buffer */ + if((addr + len) < (RX_BASE + RX_SIZE)) + chunk_len = len; + else + chunk_len = RX_BASE + RX_SIZE - addr; + insb(PIOP(base), buf_ptr, chunk_len); + buf_ptr += chunk_len; + len -= chunk_len; + ring_ptr = (ring_ptr - RX_BASE + chunk_len) % RX_SIZE + RX_BASE; + } + return(ring_ptr); +} /* read_ringbuf */ + +/*------------------------------------------------------------------*/ +/* + * Reconfigure the i82593, or at least ask for it... + * Because wv_82593_config use the transmission buffer, we must do it + * when we are sure that there is no transmission, so we do it now + * or in wavelan_packet_xmit() (I can't find any better place, + * wavelan_interrupt is not an option...), so you may experience + * some delay sometime... + */ +static void +wv_82593_reconfig(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + struct pcmcia_device * link = lp->link; + unsigned long flags; + + /* Arm the flag, will be cleard in wv_82593_config() */ + lp->reconfig_82593 = TRUE; + + /* Check if we can do it now ! */ + if((link->open) && (netif_running(dev)) && !(netif_queue_stopped(dev))) + { + spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */ + wv_82593_config(dev); + spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */ + } + else + { +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG + "%s: wv_82593_reconfig(): delayed (state = %lX, link = %d)\n", + dev->name, dev->state, link->open); +#endif + } +} + +/********************* DEBUG & INFO SUBROUTINES *********************/ +/* + * This routines are used in the code to show debug informations. + * Most of the time, it dump the content of hardware structures... + */ + +#ifdef DEBUG_PSA_SHOW +/*------------------------------------------------------------------*/ +/* + * Print the formatted contents of the Parameter Storage Area. + */ +static void +wv_psa_show(psa_t * p) +{ + printk(KERN_DEBUG "##### wavelan psa contents: #####\n"); + printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n", + p->psa_io_base_addr_1, + p->psa_io_base_addr_2, + p->psa_io_base_addr_3, + p->psa_io_base_addr_4); + printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n", + p->psa_rem_boot_addr_1, + p->psa_rem_boot_addr_2, + p->psa_rem_boot_addr_3); + printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params); + printk("psa_int_req_no: %d\n", p->psa_int_req_no); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0); +#endif /* DEBUG_SHOW_UNUSED */ + printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr); + printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr); + printk(KERN_DEBUG "psa_univ_local_sel: %d, ", p->psa_univ_local_sel); + printk("psa_comp_number: %d, ", p->psa_comp_number); + printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set); + printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ", + p->psa_feature_select); + printk("psa_subband/decay_update_prm: %d\n", p->psa_subband); + printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr); + printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay); + printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], p->psa_nwid[1]); + printk("psa_nwid_select: %d\n", p->psa_nwid_select); + printk(KERN_DEBUG "psa_encryption_select: %d, ", p->psa_encryption_select); + printk("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + p->psa_encryption_key[0], + p->psa_encryption_key[1], + p->psa_encryption_key[2], + p->psa_encryption_key[3], + p->psa_encryption_key[4], + p->psa_encryption_key[5], + p->psa_encryption_key[6], + p->psa_encryption_key[7]); + printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width); + printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ", + p->psa_call_code[0]); + printk("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", + p->psa_call_code[0], + p->psa_call_code[1], + p->psa_call_code[2], + p->psa_call_code[3], + p->psa_call_code[4], + p->psa_call_code[5], + p->psa_call_code[6], + p->psa_call_code[7]); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "psa_reserved[]: %02X:%02X\n", + p->psa_reserved[0], + p->psa_reserved[1]); +#endif /* DEBUG_SHOW_UNUSED */ + printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status); + printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]); + printk("psa_crc_status: 0x%02x\n", p->psa_crc_status); +} /* wv_psa_show */ +#endif /* DEBUG_PSA_SHOW */ + +#ifdef DEBUG_MMC_SHOW +/*------------------------------------------------------------------*/ +/* + * Print the formatted status of the Modem Management Controller. + * This function need to be completed... + */ +static void +wv_mmc_show(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + mmr_t m; + + /* Basic check */ + if(hasr_read(base) & HASR_NO_CLK) + { + printk(KERN_WARNING "%s: wv_mmc_show: modem not connected\n", + dev->name); + return; + } + + spin_lock_irqsave(&lp->spinlock, flags); + + /* Read the mmc */ + mmc_out(base, mmwoff(0, mmw_freeze), 1); + mmc_read(base, 0, (u_char *)&m, sizeof(m)); + mmc_out(base, mmwoff(0, mmw_freeze), 0); + + /* Don't forget to update statistics */ + lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; + + spin_unlock_irqrestore(&lp->spinlock, flags); + + printk(KERN_DEBUG "##### wavelan modem status registers: #####\n"); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", + m.mmr_unused0[0], + m.mmr_unused0[1], + m.mmr_unused0[2], + m.mmr_unused0[3], + m.mmr_unused0[4], + m.mmr_unused0[5], + m.mmr_unused0[6], + m.mmr_unused0[7]); +#endif /* DEBUG_SHOW_UNUSED */ + printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n", + m.mmr_des_avail, m.mmr_des_status); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n", + m.mmr_unused1[0], + m.mmr_unused1[1], + m.mmr_unused1[2], + m.mmr_unused1[3], + m.mmr_unused1[4]); +#endif /* DEBUG_SHOW_UNUSED */ + printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n", + m.mmr_dce_status, + (m.mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? "energy detected,":"", + (m.mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ? + "loop test indicated," : "", + (m.mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? "transmitter on," : "", + (m.mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ? + "jabber timer expired," : ""); + printk(KERN_DEBUG "Dsp ID: %02X\n", + m.mmr_dsp_id); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n", + m.mmr_unused2[0], + m.mmr_unused2[1]); +#endif /* DEBUG_SHOW_UNUSED */ + printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n", + (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l, + (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l); + printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n", + m.mmr_thr_pre_set & MMR_THR_PRE_SET, + (m.mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : "below"); + printk(KERN_DEBUG "signal_lvl: %d [%s], ", + m.mmr_signal_lvl & MMR_SIGNAL_LVL, + (m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : "no new msg"); + printk("silence_lvl: %d [%s], ", m.mmr_silence_lvl & MMR_SILENCE_LVL, + (m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : "no new update"); + printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL, + (m.mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : "Antenna 0"); +#ifdef DEBUG_SHOW_UNUSED + printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l); +#endif /* DEBUG_SHOW_UNUSED */ +} /* wv_mmc_show */ +#endif /* DEBUG_MMC_SHOW */ + +#ifdef DEBUG_I82593_SHOW +/*------------------------------------------------------------------*/ +/* + * Print the formatted status of the i82593's receive unit. + */ +static void +wv_ru_show(struct net_device * dev) +{ + net_local *lp = netdev_priv(dev); + + printk(KERN_DEBUG "##### wavelan i82593 receiver status: #####\n"); + printk(KERN_DEBUG "ru: rfp %d stop %d", lp->rfp, lp->stop); + /* + * Not implemented yet... + */ + printk("\n"); +} /* wv_ru_show */ +#endif /* DEBUG_I82593_SHOW */ + +#ifdef DEBUG_DEVICE_SHOW +/*------------------------------------------------------------------*/ +/* + * Print the formatted status of the WaveLAN PCMCIA device driver. + */ +static void +wv_dev_show(struct net_device * dev) +{ + printk(KERN_DEBUG "dev:"); + printk(" state=%lX,", dev->state); + printk(" trans_start=%ld,", dev->trans_start); + printk(" flags=0x%x,", dev->flags); + printk("\n"); +} /* wv_dev_show */ + +/*------------------------------------------------------------------*/ +/* + * Print the formatted status of the WaveLAN PCMCIA device driver's + * private information. + */ +static void +wv_local_show(struct net_device * dev) +{ + net_local *lp = netdev_priv(dev); + + printk(KERN_DEBUG "local:"); + /* + * Not implemented yet... + */ + printk("\n"); +} /* wv_local_show */ +#endif /* DEBUG_DEVICE_SHOW */ + +#if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) +/*------------------------------------------------------------------*/ +/* + * Dump packet header (and content if necessary) on the screen + */ +static void +wv_packet_info(u_char * p, /* Packet to dump */ + int length, /* Length of the packet */ + char * msg1, /* Name of the device */ + char * msg2) /* Name of the function */ +{ + int i; + int maxi; + + printk(KERN_DEBUG "%s: %s(): dest %pM, length %d\n", + msg1, msg2, p, length); + printk(KERN_DEBUG "%s: %s(): src %pM, type 0x%02X%02X\n", + msg1, msg2, &p[6], p[12], p[13]); + +#ifdef DEBUG_PACKET_DUMP + + printk(KERN_DEBUG "data=\""); + + if((maxi = length) > DEBUG_PACKET_DUMP) + maxi = DEBUG_PACKET_DUMP; + for(i = 14; i < maxi; i++) + if(p[i] >= ' ' && p[i] <= '~') + printk(" %c", p[i]); + else + printk("%02X", p[i]); + if(maxi < length) + printk(".."); + printk("\"\n"); + printk(KERN_DEBUG "\n"); +#endif /* DEBUG_PACKET_DUMP */ +} +#endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */ + +/*------------------------------------------------------------------*/ +/* + * This is the information which is displayed by the driver at startup + * There is a lot of flag to configure it at your will... + */ +static void +wv_init_info(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + psa_t psa; + + /* Read the parameter storage area */ + psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); + +#ifdef DEBUG_PSA_SHOW + wv_psa_show(&psa); +#endif +#ifdef DEBUG_MMC_SHOW + wv_mmc_show(dev); +#endif +#ifdef DEBUG_I82593_SHOW + wv_ru_show(dev); +#endif + +#ifdef DEBUG_BASIC_SHOW + /* Now, let's go for the basic stuff */ + printk(KERN_NOTICE "%s: WaveLAN: port %#x, irq %d, hw_addr %pM", + dev->name, base, dev->irq, dev->dev_addr); + + /* Print current network id */ + if(psa.psa_nwid_select) + printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], psa.psa_nwid[1]); + else + printk(", nwid off"); + + /* If 2.00 card */ + if(!(mmc_in(base, mmroff(0, mmr_fee_status)) & + (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) + { + unsigned short freq; + + /* Ask the EEprom to read the frequency from the first area */ + fee_read(base, 0x00 /* 1st area - frequency... */, + &freq, 1); + + /* Print frequency */ + printk(", 2.00, %ld", (freq >> 6) + 2400L); + + /* Hack !!! */ + if(freq & 0x20) + printk(".5"); + } + else + { + printk(", PCMCIA, "); + switch (psa.psa_subband) + { + case PSA_SUBBAND_915: + printk("915"); + break; + case PSA_SUBBAND_2425: + printk("2425"); + break; + case PSA_SUBBAND_2460: + printk("2460"); + break; + case PSA_SUBBAND_2484: + printk("2484"); + break; + case PSA_SUBBAND_2430_5: + printk("2430.5"); + break; + default: + printk("unknown"); + } + } + + printk(" MHz\n"); +#endif /* DEBUG_BASIC_SHOW */ + +#ifdef DEBUG_VERSION_SHOW + /* Print version information */ + printk(KERN_NOTICE "%s", version); +#endif +} /* wv_init_info */ + +/********************* IOCTL, STATS & RECONFIG *********************/ +/* + * We found here routines that are called by Linux on differents + * occasions after the configuration and not for transmitting data + * These may be called when the user use ifconfig, /proc/net/dev + * or wireless extensions + */ + + +/*------------------------------------------------------------------*/ +/* + * Set or clear the multicast filter for this adaptor. + * num_addrs == -1 Promiscuous mode, receive all packets + * num_addrs == 0 Normal mode, clear multicast list + * num_addrs > 0 Multicast mode, receive normal and MC packets, + * and do best-effort filtering. + */ + +static void +wavelan_set_multicast_list(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + +#ifdef DEBUG_IOCTL_TRACE + printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n", dev->name); +#endif + +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n", + dev->name, dev->flags, dev->mc_count); +#endif + + if(dev->flags & IFF_PROMISC) + { + /* + * Enable promiscuous mode: receive all packets. + */ + if(!lp->promiscuous) + { + lp->promiscuous = 1; + lp->allmulticast = 0; + lp->mc_count = 0; + + wv_82593_reconfig(dev); + } + } + else + /* If all multicast addresses + * or too much multicast addresses for the hardware filter */ + if((dev->flags & IFF_ALLMULTI) || + (dev->mc_count > I82593_MAX_MULTICAST_ADDRESSES)) + { + /* + * Disable promiscuous mode, but active the all multicast mode + */ + if(!lp->allmulticast) + { + lp->promiscuous = 0; + lp->allmulticast = 1; + lp->mc_count = 0; + + wv_82593_reconfig(dev); + } + } + else + /* If there is some multicast addresses to send */ + if(dev->mc_list != (struct dev_mc_list *) NULL) + { + /* + * Disable promiscuous mode, but receive all packets + * in multicast list + */ +#ifdef MULTICAST_AVOID + if(lp->promiscuous || lp->allmulticast || + (dev->mc_count != lp->mc_count)) +#endif + { + lp->promiscuous = 0; + lp->allmulticast = 0; + lp->mc_count = dev->mc_count; + + wv_82593_reconfig(dev); + } + } + else + { + /* + * Switch to normal mode: disable promiscuous mode and + * clear the multicast list. + */ + if(lp->promiscuous || lp->mc_count == 0) + { + lp->promiscuous = 0; + lp->allmulticast = 0; + lp->mc_count = 0; + + wv_82593_reconfig(dev); + } + } +#ifdef DEBUG_IOCTL_TRACE + printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", dev->name); +#endif +} + +/*------------------------------------------------------------------*/ +/* + * This function doesn't exist... + * (Note : it was a nice way to test the reconfigure stuff...) + */ +#ifdef SET_MAC_ADDRESS +static int +wavelan_set_mac_address(struct net_device * dev, + void * addr) +{ + struct sockaddr * mac = addr; + + /* Copy the address */ + memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE); + + /* Reconfig the beast */ + wv_82593_reconfig(dev); + + return 0; +} +#endif /* SET_MAC_ADDRESS */ + + +/*------------------------------------------------------------------*/ +/* + * Frequency setting (for hardware able of it) + * It's a bit complicated and you don't really want to look into it... + */ +static int +wv_set_frequency(u_long base, /* i/o port of the card */ + iw_freq * frequency) +{ + const int BAND_NUM = 10; /* Number of bands */ + long freq = 0L; /* offset to 2.4 GHz in .5 MHz */ +#ifdef DEBUG_IOCTL_INFO + int i; +#endif + + /* Setting by frequency */ + /* Theoritically, you may set any frequency between + * the two limits with a 0.5 MHz precision. In practice, + * I don't want you to have trouble with local + * regulations... */ + if((frequency->e == 1) && + (frequency->m >= (int) 2.412e8) && (frequency->m <= (int) 2.487e8)) + { + freq = ((frequency->m / 10000) - 24000L) / 5; + } + + /* Setting by channel (same as wfreqsel) */ + /* Warning : each channel is 22MHz wide, so some of the channels + * will interfere... */ + if((frequency->e == 0) && + (frequency->m >= 0) && (frequency->m < BAND_NUM)) + { + /* Get frequency offset. */ + freq = channel_bands[frequency->m] >> 1; + } + + /* Verify if the frequency is allowed */ + if(freq != 0L) + { + u_short table[10]; /* Authorized frequency table */ + + /* Read the frequency table */ + fee_read(base, 0x71 /* frequency table */, + table, 10); + +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG "Frequency table :"); + for(i = 0; i < 10; i++) + { + printk(" %04X", + table[i]); + } + printk("\n"); +#endif + + /* Look in the table if the frequency is allowed */ + if(!(table[9 - ((freq - 24) / 16)] & + (1 << ((freq - 24) % 16)))) + return -EINVAL; /* not allowed */ + } + else + return -EINVAL; + + /* If we get a usable frequency */ + if(freq != 0L) + { + unsigned short area[16]; + unsigned short dac[2]; + unsigned short area_verify[16]; + unsigned short dac_verify[2]; + /* Corresponding gain (in the power adjust value table) + * see AT&T Wavelan Data Manual, REF 407-024689/E, page 3-8 + * & WCIN062D.DOC, page 6.2.9 */ + unsigned short power_limit[] = { 40, 80, 120, 160, 0 }; + int power_band = 0; /* Selected band */ + unsigned short power_adjust; /* Correct value */ + + /* Search for the gain */ + power_band = 0; + while((freq > power_limit[power_band]) && + (power_limit[++power_band] != 0)) + ; + + /* Read the first area */ + fee_read(base, 0x00, + area, 16); + + /* Read the DAC */ + fee_read(base, 0x60, + dac, 2); + + /* Read the new power adjust value */ + fee_read(base, 0x6B - (power_band >> 1), + &power_adjust, 1); + if(power_band & 0x1) + power_adjust >>= 8; + else + power_adjust &= 0xFF; + +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG "Wavelan EEprom Area 1 :"); + for(i = 0; i < 16; i++) + { + printk(" %04X", + area[i]); + } + printk("\n"); + + printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n", + dac[0], dac[1]); +#endif + + /* Frequency offset (for info only...) */ + area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F); + + /* Receiver Principle main divider coefficient */ + area[3] = (freq >> 1) + 2400L - 352L; + area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); + + /* Transmitter Main divider coefficient */ + area[13] = (freq >> 1) + 2400L; + area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); + + /* Others part of the area are flags, bit streams or unused... */ + + /* Set the value in the DAC */ + dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80); + dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF); + + /* Write the first area */ + fee_write(base, 0x00, + area, 16); + + /* Write the DAC */ + fee_write(base, 0x60, + dac, 2); + + /* We now should verify here that the EEprom writing was ok */ + + /* ReRead the first area */ + fee_read(base, 0x00, + area_verify, 16); + + /* ReRead the DAC */ + fee_read(base, 0x60, + dac_verify, 2); + + /* Compare */ + if(memcmp(area, area_verify, 16 * 2) || + memcmp(dac, dac_verify, 2 * 2)) + { +#ifdef DEBUG_IOCTL_ERROR + printk(KERN_INFO "Wavelan: wv_set_frequency : unable to write new frequency to EEprom (?)\n"); +#endif + return -EOPNOTSUPP; + } + + /* We must download the frequency parameters to the + * synthetisers (from the EEprom - area 1) + * Note : as the EEprom is auto decremented, we set the end + * if the area... */ + mmc_out(base, mmwoff(0, mmw_fee_addr), 0x0F); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), + MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); + + /* Wait until the download is finished */ + fee_wait(base, 100, 100); + + /* We must now download the power adjust value (gain) to + * the synthetisers (from the EEprom - area 7 - DAC) */ + mmc_out(base, mmwoff(0, mmw_fee_addr), 0x61); + mmc_out(base, mmwoff(0, mmw_fee_ctrl), + MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); + + /* Wait until the download is finished */ + fee_wait(base, 100, 100); + +#ifdef DEBUG_IOCTL_INFO + /* Verification of what we have done... */ + + printk(KERN_DEBUG "Wavelan EEprom Area 1 :"); + for(i = 0; i < 16; i++) + { + printk(" %04X", + area_verify[i]); + } + printk("\n"); + + printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n", + dac_verify[0], dac_verify[1]); +#endif + + return 0; + } + else + return -EINVAL; /* Bah, never get there... */ +} + +/*------------------------------------------------------------------*/ +/* + * Give the list of available frequencies + */ +static int +wv_frequency_list(u_long base, /* i/o port of the card */ + iw_freq * list, /* List of frequency to fill */ + int max) /* Maximum number of frequencies */ +{ + u_short table[10]; /* Authorized frequency table */ + long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */ + int i; /* index in the table */ + const int BAND_NUM = 10; /* Number of bands */ + int c = 0; /* Channel number */ + + /* Read the frequency table */ + fee_read(base, 0x71 /* frequency table */, + table, 10); + + /* Look all frequencies */ + i = 0; + for(freq = 0; freq < 150; freq++) + /* Look in the table if the frequency is allowed */ + if(table[9 - (freq / 16)] & (1 << (freq % 16))) + { + /* Compute approximate channel number */ + while((((channel_bands[c] >> 1) - 24) < freq) && + (c < BAND_NUM)) + c++; + list[i].i = c; /* Set the list index */ + + /* put in the list */ + list[i].m = (((freq + 24) * 5) + 24000L) * 10000; + list[i++].e = 1; + + /* Check number */ + if(i >= max) + return(i); + } + + return(i); +} + +#ifdef IW_WIRELESS_SPY +/*------------------------------------------------------------------*/ +/* + * Gather wireless spy statistics : for each packet, compare the source + * address with out list, and if match, get the stats... + * Sorry, but this function really need wireless extensions... + */ +static inline void +wl_spy_gather(struct net_device * dev, + u_char * mac, /* MAC address */ + u_char * stats) /* Statistics to gather */ +{ + struct iw_quality wstats; + + wstats.qual = stats[2] & MMR_SGNL_QUAL; + wstats.level = stats[0] & MMR_SIGNAL_LVL; + wstats.noise = stats[1] & MMR_SILENCE_LVL; + wstats.updated = 0x7; + + /* Update spy records */ + wireless_spy_update(dev, mac, &wstats); +} +#endif /* IW_WIRELESS_SPY */ + +#ifdef HISTOGRAM +/*------------------------------------------------------------------*/ +/* + * This function calculate an histogram on the signal level. + * As the noise is quite constant, it's like doing it on the SNR. + * We have defined a set of interval (lp->his_range), and each time + * the level goes in that interval, we increment the count (lp->his_sum). + * With this histogram you may detect if one wavelan is really weak, + * or you may also calculate the mean and standard deviation of the level... + */ +static inline void +wl_his_gather(struct net_device * dev, + u_char * stats) /* Statistics to gather */ +{ + net_local * lp = netdev_priv(dev); + u_char level = stats[0] & MMR_SIGNAL_LVL; + int i; + + /* Find the correct interval */ + i = 0; + while((i < (lp->his_number - 1)) && (level >= lp->his_range[i++])) + ; + + /* Increment interval counter */ + (lp->his_sum[i])++; +} +#endif /* HISTOGRAM */ + +static void wl_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + strncpy(info->driver, "wavelan_cs", sizeof(info->driver)-1); +} + +static const struct ethtool_ops ops = { + .get_drvinfo = wl_get_drvinfo +}; + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get protocol name + */ +static int wavelan_get_name(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + strcpy(wrqu->name, "WaveLAN"); + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set NWID + */ +static int wavelan_set_nwid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + psa_t psa; + mm_t m; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Set NWID in WaveLAN. */ + if (!wrqu->nwid.disabled) { + /* Set NWID in psa */ + psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8; + psa.psa_nwid[1] = wrqu->nwid.value & 0xFF; + psa.psa_nwid_select = 0x01; + psa_write(dev, + (char *) psa.psa_nwid - (char *) &psa, + (unsigned char *) psa.psa_nwid, 3); + + /* Set NWID in mmc. */ + m.w.mmw_netw_id_l = psa.psa_nwid[1]; + m.w.mmw_netw_id_h = psa.psa_nwid[0]; + mmc_write(base, + (char *) &m.w.mmw_netw_id_l - + (char *) &m, + (unsigned char *) &m.w.mmw_netw_id_l, 2); + mmc_out(base, mmwoff(0, mmw_loopt_sel), 0x00); + } else { + /* Disable NWID in the psa. */ + psa.psa_nwid_select = 0x00; + psa_write(dev, + (char *) &psa.psa_nwid_select - + (char *) &psa, + (unsigned char *) &psa.psa_nwid_select, + 1); + + /* Disable NWID in the mmc (no filtering). */ + mmc_out(base, mmwoff(0, mmw_loopt_sel), + MMW_LOOPT_SEL_DIS_NWID); + } + /* update the Wavelan checksum */ + update_psa_checksum(dev); + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get NWID + */ +static int wavelan_get_nwid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Read the NWID. */ + psa_read(dev, + (char *) psa.psa_nwid - (char *) &psa, + (unsigned char *) psa.psa_nwid, 3); + wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1]; + wrqu->nwid.disabled = !(psa.psa_nwid_select); + wrqu->nwid.fixed = 1; /* Superfluous */ + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set frequency + */ +static int wavelan_set_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + unsigned long flags; + int ret; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ + if (!(mmc_in(base, mmroff(0, mmr_fee_status)) & + (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) + ret = wv_set_frequency(base, &(wrqu->freq)); + else + ret = -EOPNOTSUPP; + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get frequency + */ +static int wavelan_get_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). + * Does it work for everybody, especially old cards? */ + if (!(mmc_in(base, mmroff(0, mmr_fee_status)) & + (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { + unsigned short freq; + + /* Ask the EEPROM to read the frequency from the first area. */ + fee_read(base, 0x00, &freq, 1); + wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000; + wrqu->freq.e = 1; + } else { + psa_read(dev, + (char *) &psa.psa_subband - (char *) &psa, + (unsigned char *) &psa.psa_subband, 1); + + if (psa.psa_subband <= 4) { + wrqu->freq.m = fixed_bands[psa.psa_subband]; + wrqu->freq.e = (psa.psa_subband != 0); + } else + ret = -EOPNOTSUPP; + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set level threshold + */ +static int wavelan_set_sens(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Set the level threshold. */ + /* We should complain loudly if wrqu->sens.fixed = 0, because we + * can't set auto mode... */ + psa.psa_thr_pre_set = wrqu->sens.value & 0x3F; + psa_write(dev, + (char *) &psa.psa_thr_pre_set - (char *) &psa, + (unsigned char *) &psa.psa_thr_pre_set, 1); + /* update the Wavelan checksum */ + update_psa_checksum(dev); + mmc_out(base, mmwoff(0, mmw_thr_pre_set), + psa.psa_thr_pre_set); + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get level threshold + */ +static int wavelan_get_sens(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Read the level threshold. */ + psa_read(dev, + (char *) &psa.psa_thr_pre_set - (char *) &psa, + (unsigned char *) &psa.psa_thr_pre_set, 1); + wrqu->sens.value = psa.psa_thr_pre_set & 0x3F; + wrqu->sens.fixed = 1; + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set encryption key + */ +static int wavelan_set_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + unsigned long flags; + psa_t psa; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Check if capable of encryption */ + if (!mmc_encr(base)) { + ret = -EOPNOTSUPP; + } + + /* Check the size of the key */ + if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) { + ret = -EINVAL; + } + + if(!ret) { + /* Basic checking... */ + if (wrqu->encoding.length == 8) { + /* Copy the key in the driver */ + memcpy(psa.psa_encryption_key, extra, + wrqu->encoding.length); + psa.psa_encryption_select = 1; + + psa_write(dev, + (char *) &psa.psa_encryption_select - + (char *) &psa, + (unsigned char *) &psa. + psa_encryption_select, 8 + 1); + + mmc_out(base, mmwoff(0, mmw_encr_enable), + MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE); + mmc_write(base, mmwoff(0, mmw_encr_key), + (unsigned char *) &psa. + psa_encryption_key, 8); + } + + /* disable encryption */ + if (wrqu->encoding.flags & IW_ENCODE_DISABLED) { + psa.psa_encryption_select = 0; + psa_write(dev, + (char *) &psa.psa_encryption_select - + (char *) &psa, + (unsigned char *) &psa. + psa_encryption_select, 1); + + mmc_out(base, mmwoff(0, mmw_encr_enable), 0); + } + /* update the Wavelan checksum */ + update_psa_checksum(dev); + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get encryption key + */ +static int wavelan_get_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Check if encryption is available */ + if (!mmc_encr(base)) { + ret = -EOPNOTSUPP; + } else { + /* Read the encryption key */ + psa_read(dev, + (char *) &psa.psa_encryption_select - + (char *) &psa, + (unsigned char *) &psa. + psa_encryption_select, 1 + 8); + + /* encryption is enabled ? */ + if (psa.psa_encryption_select) + wrqu->encoding.flags = IW_ENCODE_ENABLED; + else + wrqu->encoding.flags = IW_ENCODE_DISABLED; + wrqu->encoding.flags |= mmc_encr(base); + + /* Copy the key to the user buffer */ + wrqu->encoding.length = 8; + memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length); + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +#ifdef WAVELAN_ROAMING_EXT +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set ESSID (domain) + */ +static int wavelan_set_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Check if disable */ + if(wrqu->data.flags == 0) + lp->filter_domains = 0; + else { + char essid[IW_ESSID_MAX_SIZE + 1]; + char * endp; + + /* Terminate the string */ + memcpy(essid, extra, wrqu->data.length); + essid[IW_ESSID_MAX_SIZE] = '\0'; + +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG "SetEssid : ``%s''\n", essid); +#endif /* DEBUG_IOCTL_INFO */ + + /* Convert to a number (note : Wavelan specific) */ + lp->domain_id = simple_strtoul(essid, &endp, 16); + /* Has it worked ? */ + if(endp > essid) + lp->filter_domains = 1; + else { + lp->filter_domains = 0; + ret = -EINVAL; + } + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get ESSID (domain) + */ +static int wavelan_get_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + + /* Is the domain ID active ? */ + wrqu->data.flags = lp->filter_domains; + + /* Copy Domain ID into a string (Wavelan specific) */ + /* Sound crazy, be we can't have a snprintf in the kernel !!! */ + sprintf(extra, "%lX", lp->domain_id); + extra[IW_ESSID_MAX_SIZE] = '\0'; + + /* Set the length */ + wrqu->data.length = strlen(extra); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set AP address + */ +static int wavelan_set_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ +#ifdef DEBUG_IOCTL_INFO + printk(KERN_DEBUG "Set AP to : %pM\n", wrqu->ap_addr.sa_data); +#endif /* DEBUG_IOCTL_INFO */ + + return -EOPNOTSUPP; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get AP address + */ +static int wavelan_get_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + /* Should get the real McCoy instead of own Ethernet address */ + memcpy(wrqu->ap_addr.sa_data, dev->dev_addr, WAVELAN_ADDR_SIZE); + wrqu->ap_addr.sa_family = ARPHRD_ETHER; + + return -EOPNOTSUPP; +} +#endif /* WAVELAN_ROAMING_EXT */ + +#ifdef WAVELAN_ROAMING +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set mode + */ +static int wavelan_set_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + unsigned long flags; + int ret = 0; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Check mode */ + switch(wrqu->mode) { + case IW_MODE_ADHOC: + if(do_roaming) { + wv_roam_cleanup(dev); + do_roaming = 0; + } + break; + case IW_MODE_INFRA: + if(!do_roaming) { + wv_roam_init(dev); + do_roaming = 1; + } + break; + default: + ret = -EINVAL; + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get mode + */ +static int wavelan_get_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + if(do_roaming) + wrqu->mode = IW_MODE_INFRA; + else + wrqu->mode = IW_MODE_ADHOC; + + return 0; +} +#endif /* WAVELAN_ROAMING */ + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get range info + */ +static int wavelan_get_range(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + struct iw_range *range = (struct iw_range *) extra; + unsigned long flags; + int ret = 0; + + /* Set the length (very important for backward compatibility) */ + wrqu->data.length = sizeof(struct iw_range); + + /* Set all the info we don't care or don't know about to zero */ + memset(range, 0, sizeof(struct iw_range)); + + /* Set the Wireless Extension versions */ + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 9; + + /* Set information in the range struct. */ + range->throughput = 1.4 * 1000 * 1000; /* don't argue on this ! */ + range->min_nwid = 0x0000; + range->max_nwid = 0xFFFF; + + range->sensitivity = 0x3F; + range->max_qual.qual = MMR_SGNL_QUAL; + range->max_qual.level = MMR_SIGNAL_LVL; + range->max_qual.noise = MMR_SILENCE_LVL; + range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */ + /* Need to get better values for those two */ + range->avg_qual.level = 30; + range->avg_qual.noise = 8; + + range->num_bitrates = 1; + range->bitrate[0] = 2000000; /* 2 Mb/s */ + + /* Event capability (kernel + driver) */ + range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) | + IW_EVENT_CAPA_MASK(0x8B04) | + IW_EVENT_CAPA_MASK(0x8B06)); + range->event_capa[1] = IW_EVENT_CAPA_K_1; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ + if (!(mmc_in(base, mmroff(0, mmr_fee_status)) & + (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { + range->num_channels = 10; + range->num_frequency = wv_frequency_list(base, range->freq, + IW_MAX_FREQUENCIES); + } else + range->num_channels = range->num_frequency = 0; + + /* Encryption supported ? */ + if (mmc_encr(base)) { + range->encoding_size[0] = 8; /* DES = 64 bits key */ + range->num_encoding_sizes = 1; + range->max_encoding_tokens = 1; /* Only one key possible */ + } else { + range->num_encoding_sizes = 0; + range->max_encoding_tokens = 0; + } + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return ret; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : set quality threshold + */ +static int wavelan_set_qthr(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + unsigned int base = dev->base_addr; + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + psa.psa_quality_thr = *(extra) & 0x0F; + psa_write(dev, + (char *) &psa.psa_quality_thr - (char *) &psa, + (unsigned char *) &psa.psa_quality_thr, 1); + /* update the Wavelan checksum */ + update_psa_checksum(dev); + mmc_out(base, mmwoff(0, mmw_quality_thr), + psa.psa_quality_thr); + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : get quality threshold + */ +static int wavelan_get_qthr(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + psa_t psa; + unsigned long flags; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + psa_read(dev, + (char *) &psa.psa_quality_thr - (char *) &psa, + (unsigned char *) &psa.psa_quality_thr, 1); + *(extra) = psa.psa_quality_thr & 0x0F; + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return 0; +} + +#ifdef WAVELAN_ROAMING +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : set roaming + */ +static int wavelan_set_roam(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + unsigned long flags; + + /* Disable interrupts and save flags. */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Note : should check if user == root */ + if(do_roaming && (*extra)==0) + wv_roam_cleanup(dev); + else if(do_roaming==0 && (*extra)!=0) + wv_roam_init(dev); + + do_roaming = (*extra); + + /* Enable interrupts and restore flags. */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : get quality threshold + */ +static int wavelan_get_roam(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + *(extra) = do_roaming; + + return 0; +} +#endif /* WAVELAN_ROAMING */ + +#ifdef HISTOGRAM +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : set histogram + */ +static int wavelan_set_histo(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + + /* Check the number of intervals. */ + if (wrqu->data.length > 16) { + return(-E2BIG); + } + + /* Disable histo while we copy the addresses. + * As we don't disable interrupts, we need to do this */ + lp->his_number = 0; + + /* Are there ranges to copy? */ + if (wrqu->data.length > 0) { + /* Copy interval ranges to the driver */ + memcpy(lp->his_range, extra, wrqu->data.length); + + { + int i; + printk(KERN_DEBUG "Histo :"); + for(i = 0; i < wrqu->data.length; i++) + printk(" %d", lp->his_range[i]); + printk("\n"); + } + + /* Reset result structure. */ + memset(lp->his_sum, 0x00, sizeof(long) * 16); + } + + /* Now we can set the number of ranges */ + lp->his_number = wrqu->data.length; + + return(0); +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Private Handler : get histogram + */ +static int wavelan_get_histo(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + net_local *lp = netdev_priv(dev); + + /* Set the number of intervals. */ + wrqu->data.length = lp->his_number; + + /* Give back the distribution statistics */ + if(lp->his_number > 0) + memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number); + + return(0); +} +#endif /* HISTOGRAM */ + +/*------------------------------------------------------------------*/ +/* + * Structures to export the Wireless Handlers + */ + +static const struct iw_priv_args wavelan_private_args[] = { +/*{ cmd, set_args, get_args, name } */ + { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" }, + { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" }, + { SIOCSIPROAM, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setroam" }, + { SIOCGIPROAM, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getroam" }, + { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" }, + { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" }, +}; + +static const iw_handler wavelan_handler[] = +{ + NULL, /* SIOCSIWNAME */ + wavelan_get_name, /* SIOCGIWNAME */ + wavelan_set_nwid, /* SIOCSIWNWID */ + wavelan_get_nwid, /* SIOCGIWNWID */ + wavelan_set_freq, /* SIOCSIWFREQ */ + wavelan_get_freq, /* SIOCGIWFREQ */ +#ifdef WAVELAN_ROAMING + wavelan_set_mode, /* SIOCSIWMODE */ + wavelan_get_mode, /* SIOCGIWMODE */ +#else /* WAVELAN_ROAMING */ + NULL, /* SIOCSIWMODE */ + NULL, /* SIOCGIWMODE */ +#endif /* WAVELAN_ROAMING */ + wavelan_set_sens, /* SIOCSIWSENS */ + wavelan_get_sens, /* SIOCGIWSENS */ + NULL, /* SIOCSIWRANGE */ + wavelan_get_range, /* SIOCGIWRANGE */ + NULL, /* SIOCSIWPRIV */ + NULL, /* SIOCGIWPRIV */ + NULL, /* SIOCSIWSTATS */ + NULL, /* SIOCGIWSTATS */ + iw_handler_set_spy, /* SIOCSIWSPY */ + iw_handler_get_spy, /* SIOCGIWSPY */ + iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ + iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ +#ifdef WAVELAN_ROAMING_EXT + wavelan_set_wap, /* SIOCSIWAP */ + wavelan_get_wap, /* SIOCGIWAP */ + NULL, /* -- hole -- */ + NULL, /* SIOCGIWAPLIST */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + wavelan_set_essid, /* SIOCSIWESSID */ + wavelan_get_essid, /* SIOCGIWESSID */ +#else /* WAVELAN_ROAMING_EXT */ + NULL, /* SIOCSIWAP */ + NULL, /* SIOCGIWAP */ + NULL, /* -- hole -- */ + NULL, /* SIOCGIWAPLIST */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + NULL, /* SIOCSIWESSID */ + NULL, /* SIOCGIWESSID */ +#endif /* WAVELAN_ROAMING_EXT */ + NULL, /* SIOCSIWNICKN */ + NULL, /* SIOCGIWNICKN */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + NULL, /* SIOCSIWRATE */ + NULL, /* SIOCGIWRATE */ + NULL, /* SIOCSIWRTS */ + NULL, /* SIOCGIWRTS */ + NULL, /* SIOCSIWFRAG */ + NULL, /* SIOCGIWFRAG */ + NULL, /* SIOCSIWTXPOW */ + NULL, /* SIOCGIWTXPOW */ + NULL, /* SIOCSIWRETRY */ + NULL, /* SIOCGIWRETRY */ + wavelan_set_encode, /* SIOCSIWENCODE */ + wavelan_get_encode, /* SIOCGIWENCODE */ +}; + +static const iw_handler wavelan_private_handler[] = +{ + wavelan_set_qthr, /* SIOCIWFIRSTPRIV */ + wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */ +#ifdef WAVELAN_ROAMING + wavelan_set_roam, /* SIOCIWFIRSTPRIV + 2 */ + wavelan_get_roam, /* SIOCIWFIRSTPRIV + 3 */ +#else /* WAVELAN_ROAMING */ + NULL, /* SIOCIWFIRSTPRIV + 2 */ + NULL, /* SIOCIWFIRSTPRIV + 3 */ +#endif /* WAVELAN_ROAMING */ +#ifdef HISTOGRAM + wavelan_set_histo, /* SIOCIWFIRSTPRIV + 4 */ + wavelan_get_histo, /* SIOCIWFIRSTPRIV + 5 */ +#endif /* HISTOGRAM */ +}; + +static const struct iw_handler_def wavelan_handler_def = +{ + .num_standard = ARRAY_SIZE(wavelan_handler), + .num_private = ARRAY_SIZE(wavelan_private_handler), + .num_private_args = ARRAY_SIZE(wavelan_private_args), + .standard = wavelan_handler, + .private = wavelan_private_handler, + .private_args = wavelan_private_args, + .get_wireless_stats = wavelan_get_wireless_stats, +}; + +/*------------------------------------------------------------------*/ +/* + * Get wireless statistics + * Called by /proc/net/wireless... + */ +static iw_stats * +wavelan_get_wireless_stats(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + mmr_t m; + iw_stats * wstats; + unsigned long flags; + +#ifdef DEBUG_IOCTL_TRACE + printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", dev->name); +#endif + + /* Disable interrupts & save flags */ + spin_lock_irqsave(&lp->spinlock, flags); + + wstats = &lp->wstats; + + /* Get data from the mmc */ + mmc_out(base, mmwoff(0, mmw_freeze), 1); + + mmc_read(base, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1); + mmc_read(base, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, 2); + mmc_read(base, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, 4); + + mmc_out(base, mmwoff(0, mmw_freeze), 0); + + /* Copy data to wireless stuff */ + wstats->status = m.mmr_dce_status & MMR_DCE_STATUS; + wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL; + wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL; + wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL; + wstats->qual.updated = (((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) | + ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) | + ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5)); + wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; + wstats->discard.code = 0L; + wstats->discard.misc = 0L; + + /* ReEnable interrupts & restore flags */ + spin_unlock_irqrestore(&lp->spinlock, flags); + +#ifdef DEBUG_IOCTL_TRACE + printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", dev->name); +#endif + return &lp->wstats; +} + +/************************* PACKET RECEPTION *************************/ +/* + * This part deal with receiving the packets. + * The interrupt handler get an interrupt when a packet has been + * successfully received and called this part... + */ + +/*------------------------------------------------------------------*/ +/* + * Calculate the starting address of the frame pointed to by the receive + * frame pointer and verify that the frame seem correct + * (called by wv_packet_rcv()) + */ +static int +wv_start_of_frame(struct net_device * dev, + int rfp, /* end of frame */ + int wrap) /* start of buffer */ +{ + unsigned int base = dev->base_addr; + int rp; + int len; + + rp = (rfp - 5 + RX_SIZE) % RX_SIZE; + outb(rp & 0xff, PIORL(base)); + outb(((rp >> 8) & PIORH_MASK), PIORH(base)); + len = inb(PIOP(base)); + len |= inb(PIOP(base)) << 8; + + /* Sanity checks on size */ + /* Frame too big */ + if(len > MAXDATAZ + 100) + { +#ifdef DEBUG_RX_ERROR + printk(KERN_INFO "%s: wv_start_of_frame: Received frame too large, rfp %d len 0x%x\n", + dev->name, rfp, len); +#endif + return(-1); + } + + /* Frame too short */ + if(len < 7) + { +#ifdef DEBUG_RX_ERROR + printk(KERN_INFO "%s: wv_start_of_frame: Received null frame, rfp %d len 0x%x\n", + dev->name, rfp, len); +#endif + return(-1); + } + + /* Wrap around buffer */ + if(len > ((wrap - (rfp - len) + RX_SIZE) % RX_SIZE)) /* magic formula ! */ + { +#ifdef DEBUG_RX_ERROR + printk(KERN_INFO "%s: wv_start_of_frame: wrap around buffer, wrap %d rfp %d len 0x%x\n", + dev->name, wrap, rfp, len); +#endif + return(-1); + } + + return((rp - len + RX_SIZE) % RX_SIZE); +} /* wv_start_of_frame */ + +/*------------------------------------------------------------------*/ +/* + * This routine does the actual copy of data (including the ethernet + * header structure) from the WaveLAN card to an sk_buff chain that + * will be passed up to the network interface layer. NOTE: We + * currently don't handle trailer protocols (neither does the rest of + * the network interface), so if that is needed, it will (at least in + * part) be added here. The contents of the receive ring buffer are + * copied to a message chain that is then passed to the kernel. + * + * Note: if any errors occur, the packet is "dropped on the floor" + * (called by wv_packet_rcv()) + */ +static void +wv_packet_read(struct net_device * dev, + int fd_p, + int sksize) +{ + net_local * lp = netdev_priv(dev); + struct sk_buff * skb; + +#ifdef DEBUG_RX_TRACE + printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n", + dev->name, fd_p, sksize); +#endif + + /* Allocate some buffer for the new packet */ + if((skb = dev_alloc_skb(sksize+2)) == (struct sk_buff *) NULL) + { +#ifdef DEBUG_RX_ERROR + printk(KERN_INFO "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC)\n", + dev->name, sksize); +#endif + dev->stats.rx_dropped++; + /* + * Not only do we want to return here, but we also need to drop the + * packet on the floor to clear the interrupt. + */ + return; + } + + skb_reserve(skb, 2); + fd_p = read_ringbuf(dev, fd_p, (char *) skb_put(skb, sksize), sksize); + skb->protocol = eth_type_trans(skb, dev); + +#ifdef DEBUG_RX_INFO + wv_packet_info(skb_mac_header(skb), sksize, dev->name, "wv_packet_read"); +#endif /* DEBUG_RX_INFO */ + + /* Statistics gathering & stuff associated. + * It seem a bit messy with all the define, but it's really simple... */ + if( +#ifdef IW_WIRELESS_SPY + (lp->spy_data.spy_number > 0) || +#endif /* IW_WIRELESS_SPY */ +#ifdef HISTOGRAM + (lp->his_number > 0) || +#endif /* HISTOGRAM */ +#ifdef WAVELAN_ROAMING + (do_roaming) || +#endif /* WAVELAN_ROAMING */ + 0) + { + u_char stats[3]; /* Signal level, Noise level, Signal quality */ + + /* read signal level, silence level and signal quality bytes */ + fd_p = read_ringbuf(dev, (fd_p + 4) % RX_SIZE + RX_BASE, + stats, 3); +#ifdef DEBUG_RX_INFO + printk(KERN_DEBUG "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n", + dev->name, stats[0] & 0x3F, stats[1] & 0x3F, stats[2] & 0x0F); +#endif + +#ifdef WAVELAN_ROAMING + if(do_roaming) + if(WAVELAN_BEACON(skb->data)) + wl_roam_gather(dev, skb->data, stats); +#endif /* WAVELAN_ROAMING */ + +#ifdef WIRELESS_SPY + wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE, stats); +#endif /* WIRELESS_SPY */ +#ifdef HISTOGRAM + wl_his_gather(dev, stats); +#endif /* HISTOGRAM */ + } + + /* + * Hand the packet to the Network Module + */ + netif_rx(skb); + + /* Keep stats up to date */ + dev->stats.rx_packets++; + dev->stats.rx_bytes += sksize; + +#ifdef DEBUG_RX_TRACE + printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name); +#endif + return; +} + +/*------------------------------------------------------------------*/ +/* + * This routine is called by the interrupt handler to initiate a + * packet transfer from the card to the network interface layer above + * this driver. This routine checks if a buffer has been successfully + * received by the WaveLAN card. If so, the routine wv_packet_read is + * called to do the actual transfer of the card's data including the + * ethernet header into a packet consisting of an sk_buff chain. + * (called by wavelan_interrupt()) + * Note : the spinlock is already grabbed for us and irq are disabled. + */ +static void +wv_packet_rcv(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + int newrfp; + int rp; + int len; + int f_start; + int status; + int i593_rfp; + int stat_ptr; + u_char c[4]; + +#ifdef DEBUG_RX_TRACE + printk(KERN_DEBUG "%s: ->wv_packet_rcv()\n", dev->name); +#endif + + /* Get the new receive frame pointer from the i82593 chip */ + outb(CR0_STATUS_2 | OP0_NOP, LCCR(base)); + i593_rfp = inb(LCSR(base)); + i593_rfp |= inb(LCSR(base)) << 8; + i593_rfp %= RX_SIZE; + + /* Get the new receive frame pointer from the WaveLAN card. + * It is 3 bytes more than the increment of the i82593 receive + * frame pointer, for each packet. This is because it includes the + * 3 roaming bytes added by the mmc. + */ + newrfp = inb(RPLL(base)); + newrfp |= inb(RPLH(base)) << 8; + newrfp %= RX_SIZE; + +#ifdef DEBUG_RX_INFO + printk(KERN_DEBUG "%s: wv_packet_rcv(): i593_rfp %d stop %d newrfp %d lp->rfp %d\n", + dev->name, i593_rfp, lp->stop, newrfp, lp->rfp); +#endif + +#ifdef DEBUG_RX_ERROR + /* If no new frame pointer... */ + if(lp->overrunning || newrfp == lp->rfp) + printk(KERN_INFO "%s: wv_packet_rcv(): no new frame: i593_rfp %d stop %d newrfp %d lp->rfp %d\n", + dev->name, i593_rfp, lp->stop, newrfp, lp->rfp); +#endif + + /* Read all frames (packets) received */ + while(newrfp != lp->rfp) + { + /* A frame is composed of the packet, followed by a status word, + * the length of the frame (word) and the mmc info (SNR & qual). + * It's because the length is at the end that we can only scan + * frames backward. */ + + /* Find the first frame by skipping backwards over the frames */ + rp = newrfp; /* End of last frame */ + while(((f_start = wv_start_of_frame(dev, rp, newrfp)) != lp->rfp) && + (f_start != -1)) + rp = f_start; + + /* If we had a problem */ + if(f_start == -1) + { +#ifdef DEBUG_RX_ERROR + printk(KERN_INFO "wavelan_cs: cannot find start of frame "); + printk(" i593_rfp %d stop %d newrfp %d lp->rfp %d\n", + i593_rfp, lp->stop, newrfp, lp->rfp); +#endif + lp->rfp = rp; /* Get to the last usable frame */ + continue; + } + + /* f_start point to the beggining of the first frame received + * and rp to the beggining of the next one */ + + /* Read status & length of the frame */ + stat_ptr = (rp - 7 + RX_SIZE) % RX_SIZE; + stat_ptr = read_ringbuf(dev, stat_ptr, c, 4); + status = c[0] | (c[1] << 8); + len = c[2] | (c[3] << 8); + + /* Check status */ + if((status & RX_RCV_OK) != RX_RCV_OK) + { + dev->stats.rx_errors++; + if(status & RX_NO_SFD) + dev->stats.rx_frame_errors++; + if(status & RX_CRC_ERR) + dev->stats.rx_crc_errors++; + if(status & RX_OVRRUN) + dev->stats.rx_over_errors++; + +#ifdef DEBUG_RX_FAIL + printk(KERN_DEBUG "%s: wv_packet_rcv(): packet not received ok, status = 0x%x\n", + dev->name, status); +#endif + } + else + /* Read the packet and transmit to Linux */ + wv_packet_read(dev, f_start, len - 2); + + /* One frame has been processed, skip it */ + lp->rfp = rp; + } + + /* + * Update the frame stop register, but set it to less than + * the full 8K to allow space for 3 bytes of signal strength + * per packet. + */ + lp->stop = (i593_rfp + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE; + outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base)); + outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base)); + outb(OP1_SWIT_TO_PORT_0, LCCR(base)); + +#ifdef DEBUG_RX_TRACE + printk(KERN_DEBUG "%s: <-wv_packet_rcv()\n", dev->name); +#endif +} + +/*********************** PACKET TRANSMISSION ***********************/ +/* + * This part deal with sending packet through the wavelan + * We copy the packet to the send buffer and then issue the send + * command to the i82593. The result of this operation will be + * checked in wavelan_interrupt() + */ + +/*------------------------------------------------------------------*/ +/* + * This routine fills in the appropriate registers and memory + * locations on the WaveLAN card and starts the card off on + * the transmit. + * (called in wavelan_packet_xmit()) + */ +static void +wv_packet_write(struct net_device * dev, + void * buf, + short length) +{ + net_local * lp = netdev_priv(dev); + unsigned int base = dev->base_addr; + unsigned long flags; + int clen = length; + register u_short xmtdata_base = TX_BASE; + +#ifdef DEBUG_TX_TRACE + printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, length); +#endif + + spin_lock_irqsave(&lp->spinlock, flags); + + /* Write the length of data buffer followed by the buffer */ + outb(xmtdata_base & 0xff, PIORL(base)); + outb(((xmtdata_base >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); + outb(clen & 0xff, PIOP(base)); /* lsb */ + outb(clen >> 8, PIOP(base)); /* msb */ + + /* Send the data */ + outsb(PIOP(base), buf, clen); + + /* Indicate end of transmit chain */ + outb(OP0_NOP, PIOP(base)); + /* josullvn@cs.cmu.edu: need to send a second NOP for alignment... */ + outb(OP0_NOP, PIOP(base)); + + /* Reset the transmit DMA pointer */ + hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); + hacr_write(base, HACR_DEFAULT); + /* Send the transmit command */ + wv_82593_cmd(dev, "wv_packet_write(): transmit", + OP0_TRANSMIT, SR0_NO_RESULT); + + /* Make sure the watchdog will keep quiet for a while */ + dev->trans_start = jiffies; + + /* Keep stats up to date */ + dev->stats.tx_bytes += length; + + spin_unlock_irqrestore(&lp->spinlock, flags); + +#ifdef DEBUG_TX_INFO + wv_packet_info((u_char *) buf, length, dev->name, "wv_packet_write"); +#endif /* DEBUG_TX_INFO */ + +#ifdef DEBUG_TX_TRACE + printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name); +#endif +} + +/*------------------------------------------------------------------*/ +/* + * This routine is called when we want to send a packet (NET3 callback) + * In this routine, we check if the harware is ready to accept + * the packet. We also prevent reentrance. Then, we call the function + * to send the packet... + */ +static netdev_tx_t +wavelan_packet_xmit(struct sk_buff * skb, + struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + unsigned long flags; + +#ifdef DEBUG_TX_TRACE + printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name, + (unsigned) skb); +#endif + + /* + * Block a timer-based transmit from overlapping a previous transmit. + * In other words, prevent reentering this routine. + */ + netif_stop_queue(dev); + + /* If somebody has asked to reconfigure the controller, + * we can do it now */ + if(lp->reconfig_82593) + { + spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */ + wv_82593_config(dev); + spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */ + /* Note : the configure procedure was totally synchronous, + * so the Tx buffer is now free */ + } + + /* Check if we need some padding */ + /* Note : on wireless the propagation time is in the order of 1us, + * and we don't have the Ethernet specific requirement of beeing + * able to detect collisions, therefore in theory we don't really + * need to pad. Jean II */ + if (skb_padto(skb, ETH_ZLEN)) + return NETDEV_TX_OK; + + wv_packet_write(dev, skb->data, skb->len); + + dev_kfree_skb(skb); + +#ifdef DEBUG_TX_TRACE + printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name); +#endif + return NETDEV_TX_OK; +} + +/********************** HARDWARE CONFIGURATION **********************/ +/* + * This part do the real job of starting and configuring the hardware. + */ + +/*------------------------------------------------------------------*/ +/* + * Routine to initialize the Modem Management Controller. + * (called by wv_hw_config()) + */ +static int +wv_mmc_init(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + psa_t psa; + mmw_t m; + int configured; + int i; /* Loop counter */ + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name); +#endif + + /* Read the parameter storage area */ + psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); + + /* + * Check the first three octets of the MAC addr for the manufacturer's code. + * Note: If you get the error message below, you've got a + * non-NCR/AT&T/Lucent PCMCIA cards, see wavelan_cs.h for detail on + * how to configure your card... + */ + for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++) + if ((psa.psa_univ_mac_addr[0] == MAC_ADDRESSES[i][0]) && + (psa.psa_univ_mac_addr[1] == MAC_ADDRESSES[i][1]) && + (psa.psa_univ_mac_addr[2] == MAC_ADDRESSES[i][2])) + break; + + /* If we have not found it... */ + if (i == ARRAY_SIZE(MAC_ADDRESSES)) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_WARNING "%s: wv_mmc_init(): Invalid MAC address: %02X:%02X:%02X:...\n", + dev->name, psa.psa_univ_mac_addr[0], + psa.psa_univ_mac_addr[1], psa.psa_univ_mac_addr[2]); +#endif + return FALSE; + } + + /* Get the MAC address */ + memcpy(&dev->dev_addr[0], &psa.psa_univ_mac_addr[0], WAVELAN_ADDR_SIZE); + +#ifdef USE_PSA_CONFIG + configured = psa.psa_conf_status & 1; +#else + configured = 0; +#endif + + /* Is the PSA is not configured */ + if(!configured) + { + /* User will be able to configure NWID after (with iwconfig) */ + psa.psa_nwid[0] = 0; + psa.psa_nwid[1] = 0; + + /* As NWID is not set : no NWID checking */ + psa.psa_nwid_select = 0; + + /* Disable encryption */ + psa.psa_encryption_select = 0; + + /* Set to standard values + * 0x04 for AT, + * 0x01 for MCA, + * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document) + */ + if (psa.psa_comp_number & 1) + psa.psa_thr_pre_set = 0x01; + else + psa.psa_thr_pre_set = 0x04; + psa.psa_quality_thr = 0x03; + + /* It is configured */ + psa.psa_conf_status |= 1; + +#ifdef USE_PSA_CONFIG + /* Write the psa */ + psa_write(dev, (char *)psa.psa_nwid - (char *)&psa, + (unsigned char *)psa.psa_nwid, 4); + psa_write(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa, + (unsigned char *)&psa.psa_thr_pre_set, 1); + psa_write(dev, (char *)&psa.psa_quality_thr - (char *)&psa, + (unsigned char *)&psa.psa_quality_thr, 1); + psa_write(dev, (char *)&psa.psa_conf_status - (char *)&psa, + (unsigned char *)&psa.psa_conf_status, 1); + /* update the Wavelan checksum */ + update_psa_checksum(dev); +#endif /* USE_PSA_CONFIG */ + } + + /* Zero the mmc structure */ + memset(&m, 0x00, sizeof(m)); + + /* Copy PSA info to the mmc */ + m.mmw_netw_id_l = psa.psa_nwid[1]; + m.mmw_netw_id_h = psa.psa_nwid[0]; + + if(psa.psa_nwid_select & 1) + m.mmw_loopt_sel = 0x00; + else + m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID; + + memcpy(&m.mmw_encr_key, &psa.psa_encryption_key, + sizeof(m.mmw_encr_key)); + + if(psa.psa_encryption_select) + m.mmw_encr_enable = MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE; + else + m.mmw_encr_enable = 0; + + m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F; + m.mmw_quality_thr = psa.psa_quality_thr & 0x0F; + + /* + * Set default modem control parameters. + * See NCR document 407-0024326 Rev. A. + */ + m.mmw_jabber_enable = 0x01; + m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN; + m.mmw_ifs = 0x20; + m.mmw_mod_delay = 0x04; + m.mmw_jam_time = 0x38; + + m.mmw_des_io_invert = 0; + m.mmw_freeze = 0; + m.mmw_decay_prm = 0; + m.mmw_decay_updat_prm = 0; + + /* Write all info to mmc */ + mmc_write(base, 0, (u_char *)&m, sizeof(m)); + + /* The following code start the modem of the 2.00 frequency + * selectable cards at power on. It's not strictly needed for the + * following boots... + * The original patch was by Joe Finney for the PCMCIA driver, but + * I've cleaned it a bit and add documentation. + * Thanks to Loeke Brederveld from Lucent for the info. + */ + + /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) + * (does it work for everybody ? - especially old cards...) */ + /* Note : WFREQSEL verify that it is able to read from EEprom + * a sensible frequency (address 0x00) + that MMR_FEE_STATUS_ID + * is 0xA (Xilinx version) or 0xB (Ariadne version). + * My test is more crude but do work... */ + if(!(mmc_in(base, mmroff(0, mmr_fee_status)) & + (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) + { + /* We must download the frequency parameters to the + * synthetisers (from the EEprom - area 1) + * Note : as the EEprom is auto decremented, we set the end + * if the area... */ + m.mmw_fee_addr = 0x0F; + m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; + mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m, + (unsigned char *)&m.mmw_fee_ctrl, 2); + + /* Wait until the download is finished */ + fee_wait(base, 100, 100); + +#ifdef DEBUG_CONFIG_INFO + /* The frequency was in the last word downloaded... */ + mmc_read(base, (char *)&m.mmw_fee_data_l - (char *)&m, + (unsigned char *)&m.mmw_fee_data_l, 2); + + /* Print some info for the user */ + printk(KERN_DEBUG "%s: Wavelan 2.00 recognised (frequency select) : Current frequency = %ld\n", + dev->name, + ((m.mmw_fee_data_h << 4) | + (m.mmw_fee_data_l >> 4)) * 5 / 2 + 24000L); +#endif + + /* We must now download the power adjust value (gain) to + * the synthetisers (from the EEprom - area 7 - DAC) */ + m.mmw_fee_addr = 0x61; + m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; + mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m, + (unsigned char *)&m.mmw_fee_ctrl, 2); + + /* Wait until the download is finished */ + } /* if 2.00 card */ + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name); +#endif + return TRUE; +} + +/*------------------------------------------------------------------*/ +/* + * Routine to gracefully turn off reception, and wait for any commands + * to complete. + * (called in wv_ru_start() and wavelan_close() and wavelan_event()) + */ +static int +wv_ru_stop(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + unsigned long flags; + int status; + int spin; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_ru_stop()\n", dev->name); +#endif + + spin_lock_irqsave(&lp->spinlock, flags); + + /* First, send the LAN controller a stop receive command */ + wv_82593_cmd(dev, "wv_graceful_shutdown(): stop-rcv", + OP0_STOP_RCV, SR0_NO_RESULT); + + /* Then, spin until the receive unit goes idle */ + spin = 300; + do + { + udelay(10); + outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); + status = inb(LCSR(base)); + } + while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_IDLE) && (spin-- > 0)); + + /* Now, spin until the chip finishes executing its current command */ + do + { + udelay(10); + outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); + status = inb(LCSR(base)); + } + while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0)); + + spin_unlock_irqrestore(&lp->spinlock, flags); + + /* If there was a problem */ + if(spin <= 0) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_INFO "%s: wv_ru_stop(): The chip doesn't want to stop...\n", + dev->name); +#endif + return FALSE; + } + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_ru_stop()\n", dev->name); +#endif + return TRUE; +} /* wv_ru_stop */ + +/*------------------------------------------------------------------*/ +/* + * This routine starts the receive unit running. First, it checks if + * the card is actually ready. Then the card is instructed to receive + * packets again. + * (called in wv_hw_reset() & wavelan_open()) + */ +static int +wv_ru_start(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + unsigned long flags; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name); +#endif + + /* + * We need to start from a quiescent state. To do so, we could check + * if the card is already running, but instead we just try to shut + * it down. First, we disable reception (in case it was already enabled). + */ + if(!wv_ru_stop(dev)) + return FALSE; + + spin_lock_irqsave(&lp->spinlock, flags); + + /* Now we know that no command is being executed. */ + + /* Set the receive frame pointer and stop pointer */ + lp->rfp = 0; + outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base)); + + /* Reset ring management. This sets the receive frame pointer to 1 */ + outb(OP1_RESET_RING_MNGMT, LCCR(base)); + +#if 0 + /* XXX the i82593 manual page 6-4 seems to indicate that the stop register + should be set as below */ + /* outb(CR1_STOP_REG_UPDATE|((RX_SIZE - 0x40)>> RX_SIZE_SHIFT),LCCR(base));*/ +#elif 0 + /* but I set it 0 instead */ + lp->stop = 0; +#else + /* but I set it to 3 bytes per packet less than 8K */ + lp->stop = (0 + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE; +#endif + outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base)); + outb(OP1_INT_ENABLE, LCCR(base)); + outb(OP1_SWIT_TO_PORT_0, LCCR(base)); + + /* Reset receive DMA pointer */ + hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); + hacr_write_slow(base, HACR_DEFAULT); + + /* Receive DMA on channel 1 */ + wv_82593_cmd(dev, "wv_ru_start(): rcv-enable", + CR0_CHNL | OP0_RCV_ENABLE, SR0_NO_RESULT); + +#ifdef DEBUG_I82593_SHOW + { + int status; + int opri; + int spin = 10000; + + /* spin until the chip starts receiving */ + do + { + outb(OP0_NOP | CR0_STATUS_3, LCCR(base)); + status = inb(LCSR(base)); + if(spin-- <= 0) + break; + } + while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_ACTIVE) && + ((status & SR3_RCV_STATE_MASK) != SR3_RCV_READY)); + printk(KERN_DEBUG "rcv status is 0x%x [i:%d]\n", + (status & SR3_RCV_STATE_MASK), i); + } +#endif + + spin_unlock_irqrestore(&lp->spinlock, flags); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name); +#endif + return TRUE; +} + +/*------------------------------------------------------------------*/ +/* + * This routine does a standard config of the WaveLAN controller (i82593). + * In the ISA driver, this is integrated in wavelan_hardware_reset() + * (called by wv_hw_config(), wv_82593_reconfig() & wavelan_packet_xmit()) + */ +static int +wv_82593_config(struct net_device * dev) +{ + unsigned int base = dev->base_addr; + net_local * lp = netdev_priv(dev); + struct i82593_conf_block cfblk; + int ret = TRUE; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_82593_config()\n", dev->name); +#endif + + /* Create & fill i82593 config block + * + * Now conform to Wavelan document WCIN085B + */ + memset(&cfblk, 0x00, sizeof(struct i82593_conf_block)); + cfblk.d6mod = FALSE; /* Run in i82593 advanced mode */ + cfblk.fifo_limit = 5; /* = 56 B rx and 40 B tx fifo thresholds */ + cfblk.forgnesi = FALSE; /* 0=82C501, 1=AMD7992B compatibility */ + cfblk.fifo_32 = 1; + cfblk.throttle_enb = FALSE; + cfblk.contin = TRUE; /* enable continuous mode */ + cfblk.cntrxint = FALSE; /* enable continuous mode receive interrupts */ + cfblk.addr_len = WAVELAN_ADDR_SIZE; + cfblk.acloc = TRUE; /* Disable source addr insertion by i82593 */ + cfblk.preamb_len = 0; /* 2 bytes preamble (SFD) */ + cfblk.loopback = FALSE; + cfblk.lin_prio = 0; /* conform to 802.3 backoff algorithm */ + cfblk.exp_prio = 5; /* conform to 802.3 backoff algorithm */ + cfblk.bof_met = 1; /* conform to 802.3 backoff algorithm */ + cfblk.ifrm_spc = 0x20 >> 4; /* 32 bit times interframe spacing */ + cfblk.slottim_low = 0x20 >> 5; /* 32 bit times slot time */ + cfblk.slottim_hi = 0x0; + cfblk.max_retr = 15; + cfblk.prmisc = ((lp->promiscuous) ? TRUE: FALSE); /* Promiscuous mode */ + cfblk.bc_dis = FALSE; /* Enable broadcast reception */ + cfblk.crs_1 = TRUE; /* Transmit without carrier sense */ + cfblk.nocrc_ins = FALSE; /* i82593 generates CRC */ + cfblk.crc_1632 = FALSE; /* 32-bit Autodin-II CRC */ + cfblk.crs_cdt = FALSE; /* CD not to be interpreted as CS */ + cfblk.cs_filter = 0; /* CS is recognized immediately */ + cfblk.crs_src = FALSE; /* External carrier sense */ + cfblk.cd_filter = 0; /* CD is recognized immediately */ + cfblk.min_fr_len = ETH_ZLEN >> 2; /* Minimum frame length 64 bytes */ + cfblk.lng_typ = FALSE; /* Length field > 1500 = type field */ + cfblk.lng_fld = TRUE; /* Disable 802.3 length field check */ + cfblk.rxcrc_xf = TRUE; /* Don't transfer CRC to memory */ + cfblk.artx = TRUE; /* Disable automatic retransmission */ + cfblk.sarec = TRUE; /* Disable source addr trig of CD */ + cfblk.tx_jabber = TRUE; /* Disable jabber jam sequence */ + cfblk.hash_1 = FALSE; /* Use bits 0-5 in mc address hash */ + cfblk.lbpkpol = TRUE; /* Loopback pin active high */ + cfblk.fdx = FALSE; /* Disable full duplex operation */ + cfblk.dummy_6 = 0x3f; /* all ones */ + cfblk.mult_ia = FALSE; /* No multiple individual addresses */ + cfblk.dis_bof = FALSE; /* Disable the backoff algorithm ?! */ + cfblk.dummy_1 = TRUE; /* set to 1 */ + cfblk.tx_ifs_retrig = 3; /* Hmm... Disabled */ +#ifdef MULTICAST_ALL + cfblk.mc_all = (lp->allmulticast ? TRUE: FALSE); /* Allow all multicasts */ +#else + cfblk.mc_all = FALSE; /* No multicast all mode */ +#endif + cfblk.rcv_mon = 0; /* Monitor mode disabled */ + cfblk.frag_acpt = TRUE; /* Do not accept fragments */ + cfblk.tstrttrs = FALSE; /* No start transmission threshold */ + cfblk.fretx = TRUE; /* FIFO automatic retransmission */ + cfblk.syncrqs = FALSE; /* Synchronous DRQ deassertion... */ + cfblk.sttlen = TRUE; /* 6 byte status registers */ + cfblk.rx_eop = TRUE; /* Signal EOP on packet reception */ + cfblk.tx_eop = TRUE; /* Signal EOP on packet transmission */ + cfblk.rbuf_size = RX_SIZE>>11; /* Set receive buffer size */ + cfblk.rcvstop = TRUE; /* Enable Receive Stop Register */ + +#ifdef DEBUG_I82593_SHOW + print_hex_dump(KERN_DEBUG, "wavelan_cs: config block: ", DUMP_PREFIX_NONE, + 16, 1, &cfblk, sizeof(struct i82593_conf_block), false); +#endif + + /* Copy the config block to the i82593 */ + outb(TX_BASE & 0xff, PIORL(base)); + outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); + outb(sizeof(struct i82593_conf_block) & 0xff, PIOP(base)); /* lsb */ + outb(sizeof(struct i82593_conf_block) >> 8, PIOP(base)); /* msb */ + outsb(PIOP(base), (char *) &cfblk, sizeof(struct i82593_conf_block)); + + /* reset transmit DMA pointer */ + hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); + hacr_write(base, HACR_DEFAULT); + if(!wv_82593_cmd(dev, "wv_82593_config(): configure", + OP0_CONFIGURE, SR0_CONFIGURE_DONE)) + ret = FALSE; + + /* Initialize adapter's ethernet MAC address */ + outb(TX_BASE & 0xff, PIORL(base)); + outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); + outb(WAVELAN_ADDR_SIZE, PIOP(base)); /* byte count lsb */ + outb(0, PIOP(base)); /* byte count msb */ + outsb(PIOP(base), &dev->dev_addr[0], WAVELAN_ADDR_SIZE); + + /* reset transmit DMA pointer */ + hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); + hacr_write(base, HACR_DEFAULT); + if(!wv_82593_cmd(dev, "wv_82593_config(): ia-setup", + OP0_IA_SETUP, SR0_IA_SETUP_DONE)) + ret = FALSE; + +#ifdef WAVELAN_ROAMING + /* If roaming is enabled, join the "Beacon Request" multicast group... */ + /* But only if it's not in there already! */ + if(do_roaming) + dev_mc_add(dev,WAVELAN_BEACON_ADDRESS, WAVELAN_ADDR_SIZE, 1); +#endif /* WAVELAN_ROAMING */ + + /* If any multicast address to set */ + if(lp->mc_count) + { + struct dev_mc_list * dmi; + int addrs_len = WAVELAN_ADDR_SIZE * lp->mc_count; + +#ifdef DEBUG_CONFIG_INFO + printk(KERN_DEBUG "%s: wv_hw_config(): set %d multicast addresses:\n", + dev->name, lp->mc_count); + for(dmi=dev->mc_list; dmi; dmi=dmi->next) + printk(KERN_DEBUG " %pM\n", dmi->dmi_addr); +#endif + + /* Initialize adapter's ethernet multicast addresses */ + outb(TX_BASE & 0xff, PIORL(base)); + outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base)); + outb(addrs_len & 0xff, PIOP(base)); /* byte count lsb */ + outb((addrs_len >> 8), PIOP(base)); /* byte count msb */ + for(dmi=dev->mc_list; dmi; dmi=dmi->next) + outsb(PIOP(base), dmi->dmi_addr, dmi->dmi_addrlen); + + /* reset transmit DMA pointer */ + hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET); + hacr_write(base, HACR_DEFAULT); + if(!wv_82593_cmd(dev, "wv_82593_config(): mc-setup", + OP0_MC_SETUP, SR0_MC_SETUP_DONE)) + ret = FALSE; + lp->mc_count = dev->mc_count; /* remember to avoid repeated reset */ + } + + /* Job done, clear the flag */ + lp->reconfig_82593 = FALSE; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_82593_config()\n", dev->name); +#endif + return(ret); +} + +/*------------------------------------------------------------------*/ +/* + * Read the Access Configuration Register, perform a software reset, + * and then re-enable the card's software. + * + * If I understand correctly : reset the pcmcia interface of the + * wavelan. + * (called by wv_config()) + */ +static int +wv_pcmcia_reset(struct net_device * dev) +{ + int i; + conf_reg_t reg = { 0, CS_READ, CISREG_COR, 0 }; + struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_pcmcia_reset()\n", dev->name); +#endif + + i = pcmcia_access_configuration_register(link, ®); + if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); + return FALSE; - } + +#ifdef DEBUG_CONFIG_INFO + printk(KERN_DEBUG "%s: wavelan_pcmcia_reset(): Config reg is 0x%x\n", + dev->name, (u_int) reg.Value); +#endif + + reg.Action = CS_WRITE; + reg.Value = reg.Value | COR_SW_RESET; + i = pcmcia_access_configuration_register(link, ®); + if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); + return FALSE; - } + + reg.Action = CS_WRITE; + reg.Value = COR_LEVEL_IRQ | COR_CONFIG; + i = pcmcia_access_configuration_register(link, ®); + if (i != 0) - { - cs_error(link, AccessConfigurationRegister, i); + return FALSE; - } + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_pcmcia_reset()\n", dev->name); +#endif + return TRUE; +} + +/*------------------------------------------------------------------*/ +/* + * wavelan_hw_config() is called after a CARD_INSERTION event is + * received, to configure the wavelan hardware. + * Note that the reception will be enabled in wavelan->open(), so the + * device is configured but idle... + * Performs the following actions: + * 1. A pcmcia software reset (using wv_pcmcia_reset()) + * 2. A power reset (reset DMA) + * 3. Reset the LAN controller + * 4. Initialize the radio modem (using wv_mmc_init) + * 5. Configure LAN controller (using wv_82593_config) + * 6. Perform a diagnostic on the LAN controller + * (called by wavelan_event() & wv_hw_reset()) + */ +static int +wv_hw_config(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + unsigned int base = dev->base_addr; + unsigned long flags; + int ret = FALSE; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_hw_config()\n", dev->name); +#endif + + /* compile-time check the sizes of structures */ + BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE); + BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE); + BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE); + + /* Reset the pcmcia interface */ + if(wv_pcmcia_reset(dev) == FALSE) + return FALSE; + + /* Disable interrupts */ + spin_lock_irqsave(&lp->spinlock, flags); + + /* Disguised goto ;-) */ + do + { + /* Power UP the module + reset the modem + reset host adapter + * (in fact, reset DMA channels) */ + hacr_write_slow(base, HACR_RESET); + hacr_write(base, HACR_DEFAULT); + + /* Check if the module has been powered up... */ + if(hasr_read(base) & HASR_NO_CLK) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_WARNING "%s: wv_hw_config(): modem not connected or not a wavelan card\n", + dev->name); +#endif + break; + } + + /* initialize the modem */ + if(wv_mmc_init(dev) == FALSE) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_WARNING "%s: wv_hw_config(): Can't configure the modem\n", + dev->name); +#endif + break; + } + + /* reset the LAN controller (i82593) */ + outb(OP0_RESET, LCCR(base)); + mdelay(1); /* A bit crude ! */ + + /* Initialize the LAN controller */ + if(wv_82593_config(dev) == FALSE) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_INFO "%s: wv_hw_config(): i82593 init failed\n", + dev->name); +#endif + break; + } + + /* Diagnostic */ + if(wv_diag(dev) == FALSE) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_INFO "%s: wv_hw_config(): i82593 diagnostic failed\n", + dev->name); +#endif + break; + } + + /* + * insert code for loopback test here + */ + + /* The device is now configured */ + lp->configured = 1; + ret = TRUE; + } + while(0); + + /* Re-enable interrupts */ + spin_unlock_irqrestore(&lp->spinlock, flags); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_hw_config()\n", dev->name); +#endif + return(ret); +} + +/*------------------------------------------------------------------*/ +/* + * Totally reset the wavelan and restart it. + * Performs the following actions: + * 1. Call wv_hw_config() + * 2. Start the LAN controller's receive unit + * (called by wavelan_event(), wavelan_watchdog() and wavelan_open()) + */ +static void +wv_hw_reset(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: ->wv_hw_reset()\n", dev->name); +#endif + + lp->nresets++; + lp->configured = 0; + + /* Call wv_hw_config() for most of the reset & init stuff */ + if(wv_hw_config(dev) == FALSE) + return; + + /* start receive unit */ + wv_ru_start(dev); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name); +#endif +} + +/*------------------------------------------------------------------*/ +/* + * wv_pcmcia_config() is called after a CARD_INSERTION event is + * received, to configure the PCMCIA socket, and to make the ethernet + * device available to the system. + * (called by wavelan_event()) + */ +static int +wv_pcmcia_config(struct pcmcia_device * link) +{ + struct net_device * dev = (struct net_device *) link->priv; + int i; + win_req_t req; + memreq_t mem; + net_local * lp = netdev_priv(dev); + + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "->wv_pcmcia_config(0x%p)\n", link); +#endif + + do + { + i = pcmcia_request_io(link, &link->io); + if (i != 0) - { - cs_error(link, RequestIO, i); + break; - } + + /* + * Now allocate an interrupt line. Note that this does not + * actually assign a handler to the interrupt. + */ + i = pcmcia_request_irq(link, &link->irq); + if (i != 0) - { - cs_error(link, RequestIRQ, i); + break; - } + + /* + * This actually configures the PCMCIA socket -- setting up + * the I/O windows and the interrupt mapping. + */ + link->conf.ConfigIndex = 1; + i = pcmcia_request_configuration(link, &link->conf); + if (i != 0) - { - cs_error(link, RequestConfiguration, i); + break; - } + + /* + * Allocate a small memory window. Note that the struct pcmcia_device + * structure provides space for one window handle -- if your + * device needs several windows, you'll need to keep track of + * the handles in your private data structure, link->priv. + */ + req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; + req.Base = req.Size = 0; + req.AccessSpeed = mem_speed; - i = pcmcia_request_window(&link, &req, &link->win); ++ i = pcmcia_request_window(link, &req, &link->win); + if (i != 0) - { - cs_error(link, RequestWindow, i); + break; - } + + lp->mem = ioremap(req.Base, req.Size); + dev->mem_start = (u_long)lp->mem; + dev->mem_end = dev->mem_start + req.Size; + + mem.CardOffset = 0; mem.Page = 0; - i = pcmcia_map_mem_page(link->win, &mem); ++ i = pcmcia_map_mem_page(link, link->win, &mem); + if (i != 0) - { - cs_error(link, MapMemPage, i); + break; - } + + /* Feed device with this info... */ + dev->irq = link->irq.AssignedIRQ; + dev->base_addr = link->io.BasePort1; + netif_start_queue(dev); + +#ifdef DEBUG_CONFIG_INFO + printk(KERN_DEBUG "wv_pcmcia_config: MEMSTART %p IRQ %d IOPORT 0x%x\n", + lp->mem, dev->irq, (u_int) dev->base_addr); +#endif + - SET_NETDEV_DEV(dev, &handle_to_dev(link)); ++ SET_NETDEV_DEV(dev, &link->dev); + i = register_netdev(dev); + if(i != 0) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_INFO "wv_pcmcia_config(): register_netdev() failed\n"); +#endif + break; + } + } + while(0); /* Humm... Disguised goto !!! */ + + /* If any step failed, release any partially configured state */ + if(i != 0) + { + wv_pcmcia_release(link); + return FALSE; + } + + strcpy(((net_local *) netdev_priv(dev))->node.dev_name, dev->name); + link->dev_node = &((net_local *) netdev_priv(dev))->node; + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "<-wv_pcmcia_config()\n"); +#endif + return TRUE; +} + +/*------------------------------------------------------------------*/ +/* + * After a card is removed, wv_pcmcia_release() will unregister the net + * device, and release the PCMCIA configuration. If the device is + * still open, this will be postponed until it is closed. + */ +static void +wv_pcmcia_release(struct pcmcia_device *link) +{ + struct net_device * dev = (struct net_device *) link->priv; + net_local * lp = netdev_priv(dev); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: -> wv_pcmcia_release(0x%p)\n", dev->name, link); +#endif + + iounmap(lp->mem); + pcmcia_disable_device(link); + +#ifdef DEBUG_CONFIG_TRACE + printk(KERN_DEBUG "%s: <- wv_pcmcia_release()\n", dev->name); +#endif +} + +/************************ INTERRUPT HANDLING ************************/ + +/* + * This function is the interrupt handler for the WaveLAN card. This + * routine will be called whenever: + * 1. A packet is received. + * 2. A packet has successfully been transferred and the unit is + * ready to transmit another packet. + * 3. A command has completed execution. + */ +static irqreturn_t +wavelan_interrupt(int irq, + void * dev_id) +{ + struct net_device * dev = dev_id; + net_local * lp; + unsigned int base; + int status0; + u_int tx_status; + +#ifdef DEBUG_INTERRUPT_TRACE + printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name); +#endif + + lp = netdev_priv(dev); + base = dev->base_addr; + +#ifdef DEBUG_INTERRUPT_INFO + /* Check state of our spinlock (it should be cleared) */ + if(spin_is_locked(&lp->spinlock)) + printk(KERN_DEBUG + "%s: wavelan_interrupt(): spinlock is already locked !!!\n", + dev->name); +#endif + + /* Prevent reentrancy. We need to do that because we may have + * multiple interrupt handler running concurently. + * It is safe because interrupts are disabled before aquiring + * the spinlock. */ + spin_lock(&lp->spinlock); + + /* Treat all pending interrupts */ + while(1) + { + /* ---------------- INTERRUPT CHECKING ---------------- */ + /* + * Look for the interrupt and verify the validity + */ + outb(CR0_STATUS_0 | OP0_NOP, LCCR(base)); + status0 = inb(LCSR(base)); + +#ifdef DEBUG_INTERRUPT_INFO + printk(KERN_DEBUG "status0 0x%x [%s => 0x%x]", status0, + (status0&SR0_INTERRUPT)?"int":"no int",status0&~SR0_INTERRUPT); + if(status0&SR0_INTERRUPT) + { + printk(" [%s => %d]\n", (status0 & SR0_CHNL) ? "chnl" : + ((status0 & SR0_EXECUTION) ? "cmd" : + ((status0 & SR0_RECEPTION) ? "recv" : "unknown")), + (status0 & SR0_EVENT_MASK)); + } + else + printk("\n"); +#endif + + /* Return if no actual interrupt from i82593 (normal exit) */ + if(!(status0 & SR0_INTERRUPT)) + break; + + /* If interrupt is both Rx and Tx or none... + * This code in fact is there to catch the spurious interrupt + * when you remove the wavelan pcmcia card from the socket */ + if(((status0 & SR0_BOTH_RX_TX) == SR0_BOTH_RX_TX) || + ((status0 & SR0_BOTH_RX_TX) == 0x0)) + { +#ifdef DEBUG_INTERRUPT_INFO + printk(KERN_INFO "%s: wv_interrupt(): bogus interrupt (or from dead card) : %X\n", + dev->name, status0); +#endif + /* Acknowledge the interrupt */ + outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); + break; + } + + /* ----------------- RECEIVING PACKET ----------------- */ + /* + * When the wavelan signal the reception of a new packet, + * we call wv_packet_rcv() to copy if from the buffer and + * send it to NET3 + */ + if(status0 & SR0_RECEPTION) + { +#ifdef DEBUG_INTERRUPT_INFO + printk(KERN_DEBUG "%s: wv_interrupt(): receive\n", dev->name); +#endif + + if((status0 & SR0_EVENT_MASK) == SR0_STOP_REG_HIT) + { +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "%s: wv_interrupt(): receive buffer overflow\n", + dev->name); +#endif + dev->stats.rx_over_errors++; + lp->overrunning = 1; + } + + /* Get the packet */ + wv_packet_rcv(dev); + lp->overrunning = 0; + + /* Acknowledge the interrupt */ + outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); + continue; + } + + /* ---------------- COMMAND COMPLETION ---------------- */ + /* + * Interrupts issued when the i82593 has completed a command. + * Most likely : transmission done + */ + + /* If a transmission has been done */ + if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_DONE || + (status0 & SR0_EVENT_MASK) == SR0_RETRANSMIT_DONE || + (status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE) + { +#ifdef DEBUG_TX_ERROR + if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE) + printk(KERN_INFO "%s: wv_interrupt(): packet transmitted without CRC.\n", + dev->name); +#endif + + /* Get transmission status */ + tx_status = inb(LCSR(base)); + tx_status |= (inb(LCSR(base)) << 8); +#ifdef DEBUG_INTERRUPT_INFO + printk(KERN_DEBUG "%s: wv_interrupt(): transmission done\n", + dev->name); + { + u_int rcv_bytes; + u_char status3; + rcv_bytes = inb(LCSR(base)); + rcv_bytes |= (inb(LCSR(base)) << 8); + status3 = inb(LCSR(base)); + printk(KERN_DEBUG "tx_status 0x%02x rcv_bytes 0x%02x status3 0x%x\n", + tx_status, rcv_bytes, (u_int) status3); + } +#endif + /* Check for possible errors */ + if((tx_status & TX_OK) != TX_OK) + { + dev->stats.tx_errors++; + + if(tx_status & TX_FRTL) + { +#ifdef DEBUG_TX_ERROR + printk(KERN_INFO "%s: wv_interrupt(): frame too long\n", + dev->name); +#endif + } + if(tx_status & TX_UND_RUN) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): DMA underrun\n", + dev->name); +#endif + dev->stats.tx_aborted_errors++; + } + if(tx_status & TX_LOST_CTS) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): no CTS\n", dev->name); +#endif + dev->stats.tx_carrier_errors++; + } + if(tx_status & TX_LOST_CRS) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): no carrier\n", + dev->name); +#endif + dev->stats.tx_carrier_errors++; + } + if(tx_status & TX_HRT_BEAT) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): heart beat\n", dev->name); +#endif + dev->stats.tx_heartbeat_errors++; + } + if(tx_status & TX_DEFER) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): channel jammed\n", + dev->name); +#endif + } + /* Ignore late collisions since they're more likely to happen + * here (the WaveLAN design prevents the LAN controller from + * receiving while it is transmitting). We take action only when + * the maximum retransmit attempts is exceeded. + */ + if(tx_status & TX_COLL) + { + if(tx_status & TX_MAX_COL) + { +#ifdef DEBUG_TX_FAIL + printk(KERN_DEBUG "%s: wv_interrupt(): channel congestion\n", + dev->name); +#endif + if(!(tx_status & TX_NCOL_MASK)) + { + dev->stats.collisions += 0x10; + } + } + } + } /* if(!(tx_status & TX_OK)) */ + + dev->stats.collisions += (tx_status & TX_NCOL_MASK); + dev->stats.tx_packets++; + + netif_wake_queue(dev); + outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */ + } + else /* if interrupt = transmit done or retransmit done */ + { +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "wavelan_cs: unknown interrupt, status0 = %02x\n", + status0); +#endif + outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */ + } + } /* while(1) */ + + spin_unlock(&lp->spinlock); + +#ifdef DEBUG_INTERRUPT_TRACE + printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name); +#endif + + /* We always return IRQ_HANDLED, because we will receive empty + * interrupts under normal operations. Anyway, it doesn't matter + * as we are dealing with an ISA interrupt that can't be shared. + * + * Explanation : under heavy receive, the following happens : + * ->wavelan_interrupt() + * (status0 & SR0_INTERRUPT) != 0 + * ->wv_packet_rcv() + * (status0 & SR0_INTERRUPT) != 0 + * ->wv_packet_rcv() + * (status0 & SR0_INTERRUPT) == 0 // i.e. no more event + * <-wavelan_interrupt() + * ->wavelan_interrupt() + * (status0 & SR0_INTERRUPT) == 0 // i.e. empty interrupt + * <-wavelan_interrupt() + * Jean II */ + return IRQ_HANDLED; +} /* wv_interrupt */ + +/*------------------------------------------------------------------*/ +/* + * Watchdog: when we start a transmission, a timer is set for us in the + * kernel. If the transmission completes, this timer is disabled. If + * the timer expires, we are called and we try to unlock the hardware. + * + * Note : This watchdog is move clever than the one in the ISA driver, + * because it try to abort the current command before reseting + * everything... + * On the other hand, it's a bit simpler, because we don't have to + * deal with the multiple Tx buffers... + */ +static void +wavelan_watchdog(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + unsigned int base = dev->base_addr; + unsigned long flags; + int aborted = FALSE; + +#ifdef DEBUG_INTERRUPT_TRACE + printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name); +#endif + +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n", + dev->name); +#endif + + spin_lock_irqsave(&lp->spinlock, flags); + + /* Ask to abort the current command */ + outb(OP0_ABORT, LCCR(base)); + + /* Wait for the end of the command (a bit hackish) */ + if(wv_82593_cmd(dev, "wavelan_watchdog(): abort", + OP0_NOP | CR0_STATUS_3, SR0_EXECUTION_ABORTED)) + aborted = TRUE; + + /* Release spinlock here so that wv_hw_reset() can grab it */ + spin_unlock_irqrestore(&lp->spinlock, flags); + + /* Check if we were successful in aborting it */ + if(!aborted) + { + /* It seem that it wasn't enough */ +#ifdef DEBUG_INTERRUPT_ERROR + printk(KERN_INFO "%s: wavelan_watchdog: abort failed, trying reset\n", + dev->name); +#endif + wv_hw_reset(dev); + } + +#ifdef DEBUG_PSA_SHOW + { + psa_t psa; + psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); + wv_psa_show(&psa); + } +#endif +#ifdef DEBUG_MMC_SHOW + wv_mmc_show(dev); +#endif +#ifdef DEBUG_I82593_SHOW + wv_ru_show(dev); +#endif + + /* We are no more waiting for something... */ + netif_wake_queue(dev); + +#ifdef DEBUG_INTERRUPT_TRACE + printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name); +#endif +} + +/********************* CONFIGURATION CALLBACKS *********************/ +/* + * Here are the functions called by the pcmcia package (cardmgr) and + * linux networking (NET3) for initialization, configuration and + * deinstallations of the Wavelan Pcmcia Hardware. + */ + +/*------------------------------------------------------------------*/ +/* + * Configure and start up the WaveLAN PCMCIA adaptor. + * Called by NET3 when it "open" the device. + */ +static int +wavelan_open(struct net_device * dev) +{ + net_local * lp = netdev_priv(dev); + struct pcmcia_device * link = lp->link; + unsigned int base = dev->base_addr; + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name, + (unsigned int) dev); +#endif + + /* Check if the modem is powered up (wavelan_close() power it down */ + if(hasr_read(base) & HASR_NO_CLK) + { + /* Power up (power up time is 250us) */ + hacr_write(base, HACR_DEFAULT); + + /* Check if the module has been powered up... */ + if(hasr_read(base) & HASR_NO_CLK) + { +#ifdef DEBUG_CONFIG_ERRORS + printk(KERN_WARNING "%s: wavelan_open(): modem not connected\n", + dev->name); +#endif + return FALSE; + } + } + + /* Start reception and declare the driver ready */ + if(!lp->configured) + return FALSE; + if(!wv_ru_start(dev)) + wv_hw_reset(dev); /* If problem : reset */ + netif_start_queue(dev); + + /* Mark the device as used */ + link->open++; + +#ifdef WAVELAN_ROAMING + if(do_roaming) + wv_roam_init(dev); +#endif /* WAVELAN_ROAMING */ + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name); +#endif + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Shutdown the WaveLAN PCMCIA adaptor. + * Called by NET3 when it "close" the device. + */ +static int +wavelan_close(struct net_device * dev) +{ + struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link; + unsigned int base = dev->base_addr; + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name, + (unsigned int) dev); +#endif + + /* If the device isn't open, then nothing to do */ + if(!link->open) + { +#ifdef DEBUG_CONFIG_INFO + printk(KERN_DEBUG "%s: wavelan_close(): device not open\n", dev->name); +#endif + return 0; + } + +#ifdef WAVELAN_ROAMING + /* Cleanup of roaming stuff... */ + if(do_roaming) + wv_roam_cleanup(dev); +#endif /* WAVELAN_ROAMING */ + + link->open--; + + /* If the card is still present */ + if(netif_running(dev)) + { + netif_stop_queue(dev); + + /* Stop receiving new messages and wait end of transmission */ + wv_ru_stop(dev); + + /* Power down the module */ + hacr_write(base, HACR_DEFAULT & (~HACR_PWR_STAT)); + } + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name); +#endif + return 0; +} + +static const struct net_device_ops wavelan_netdev_ops = { + .ndo_open = wavelan_open, + .ndo_stop = wavelan_close, + .ndo_start_xmit = wavelan_packet_xmit, + .ndo_set_multicast_list = wavelan_set_multicast_list, +#ifdef SET_MAC_ADDRESS + .ndo_set_mac_address = wavelan_set_mac_address, +#endif + .ndo_tx_timeout = wavelan_watchdog, + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, +}; + +/*------------------------------------------------------------------*/ +/* + * wavelan_attach() creates an "instance" of the driver, allocating + * local data structures for one device (one interface). The device + * is registered with Card Services. + * + * The dev_link structure is initialized, but we don't actually + * configure the card at this point -- we wait until we receive a + * card insertion event. + */ +static int +wavelan_probe(struct pcmcia_device *p_dev) +{ + struct net_device * dev; /* Interface generic data */ + net_local * lp; /* Interface specific data */ + int ret; + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "-> wavelan_attach()\n"); +#endif + + /* The io structure describes IO port mapping */ + p_dev->io.NumPorts1 = 8; + p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; + p_dev->io.IOAddrLines = 3; + + /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; - p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID; ++ p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; + p_dev->irq.Handler = wavelan_interrupt; + + /* General socket configuration */ + p_dev->conf.Attributes = CONF_ENABLE_IRQ; + p_dev->conf.IntType = INT_MEMORY_AND_IO; + + /* Allocate the generic data structure */ + dev = alloc_etherdev(sizeof(net_local)); + if (!dev) + return -ENOMEM; + - p_dev->priv = p_dev->irq.Instance = dev; ++ p_dev->priv = dev; + + lp = netdev_priv(dev); + + /* Init specific data */ + lp->configured = 0; + lp->reconfig_82593 = FALSE; + lp->nresets = 0; + /* Multicast stuff */ + lp->promiscuous = 0; + lp->allmulticast = 0; + lp->mc_count = 0; + + /* Init spinlock */ + spin_lock_init(&lp->spinlock); + + /* back links */ + lp->dev = dev; + + /* wavelan NET3 callbacks */ + dev->netdev_ops = &wavelan_netdev_ops; + dev->watchdog_timeo = WATCHDOG_JIFFIES; + SET_ETHTOOL_OPS(dev, &ops); + + dev->wireless_handlers = &wavelan_handler_def; + lp->wireless_data.spy_data = &lp->spy_data; + dev->wireless_data = &lp->wireless_data; + + /* Other specific data */ + dev->mtu = WAVELAN_MTU; + + ret = wv_pcmcia_config(p_dev); + if (ret) + return ret; + + ret = wv_hw_config(dev); + if (ret) { + dev->irq = 0; + pcmcia_disable_device(p_dev); + return ret; + } + + wv_init_info(dev); + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "<- wavelan_attach()\n"); +#endif + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * This deletes a driver "instance". The device is de-registered with + * Card Services. If it has been released, all local data structures + * are freed. Otherwise, the structures will be freed when the device + * is released. + */ +static void +wavelan_detach(struct pcmcia_device *link) +{ +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "-> wavelan_detach(0x%p)\n", link); +#endif + + /* Some others haven't done their job : give them another chance */ + wv_pcmcia_release(link); + + /* Free pieces */ + if(link->priv) + { + struct net_device * dev = (struct net_device *) link->priv; + + /* Remove ourselves from the kernel list of ethernet devices */ + /* Warning : can't be called from interrupt, timer or wavelan_close() */ + if (link->dev_node) + unregister_netdev(dev); + link->dev_node = NULL; + ((net_local *)netdev_priv(dev))->link = NULL; + ((net_local *)netdev_priv(dev))->dev = NULL; + free_netdev(dev); + } + +#ifdef DEBUG_CALLBACK_TRACE + printk(KERN_DEBUG "<- wavelan_detach()\n"); +#endif +} + +static int wavelan_suspend(struct pcmcia_device *link) +{ + struct net_device * dev = (struct net_device *) link->priv; + + /* NB: wavelan_close will be called, but too late, so we are + * obliged to close nicely the wavelan here. David, could you + * close the device before suspending them ? And, by the way, + * could you, on resume, add a "route add -net ..." after the + * ifconfig up ? Thanks... */ + + /* Stop receiving new messages and wait end of transmission */ + wv_ru_stop(dev); + + if (link->open) + netif_device_detach(dev); + + /* Power down the module */ + hacr_write(dev->base_addr, HACR_DEFAULT & (~HACR_PWR_STAT)); + + return 0; +} + +static int wavelan_resume(struct pcmcia_device *link) +{ + struct net_device * dev = (struct net_device *) link->priv; + + if (link->open) { + wv_hw_reset(dev); + netif_device_attach(dev); + } + + return 0; +} + + +static struct pcmcia_device_id wavelan_ids[] = { + PCMCIA_DEVICE_PROD_ID12("AT&T","WaveLAN/PCMCIA", 0xe7c5affd, 0x1bc50975), + PCMCIA_DEVICE_PROD_ID12("Digital", "RoamAbout/DS", 0x9999ab35, 0x00d05e06), + PCMCIA_DEVICE_PROD_ID12("Lucent Technologies", "WaveLAN/PCMCIA", 0x23eb9949, 0x1bc50975), + PCMCIA_DEVICE_PROD_ID12("NCR", "WaveLAN/PCMCIA", 0x24358cd4, 0x1bc50975), + PCMCIA_DEVICE_NULL, +}; +MODULE_DEVICE_TABLE(pcmcia, wavelan_ids); + +static struct pcmcia_driver wavelan_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "wavelan_cs", + }, + .probe = wavelan_probe, + .remove = wavelan_detach, + .id_table = wavelan_ids, + .suspend = wavelan_suspend, + .resume = wavelan_resume, +}; + +static int __init +init_wavelan_cs(void) +{ + return pcmcia_register_driver(&wavelan_driver); +} + +static void __exit +exit_wavelan_cs(void) +{ + pcmcia_unregister_driver(&wavelan_driver); +} + +module_init(init_wavelan_cs); +module_exit(exit_wavelan_cs);