ray_cs.c
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上传日期:2013-04-10
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- /*=============================================================================
- *
- * A PCMCIA client driver for the Raylink wireless LAN card.
- * The starting point for this module was the skeleton.c in the
- * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
- *
- *
- * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
- *
- * This driver is free software; you can redistribute it and/or modify
- * it under the terms of version 2 only of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * It is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * Changes:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
- * - reorganize kmallocs in ray_attach, checking all for failure
- * and releasing the previous allocations if one fails
- *
- *
- =============================================================================*/
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/proc_fs.h>
- #include <linux/ptrace.h>
- #include <linux/slab.h>
- #include <linux/string.h>
- #include <linux/timer.h>
- #include <linux/init.h>
- #include <asm/io.h>
- #include <asm/system.h>
- #include <asm/byteorder.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/if_arp.h>
- #include <linux/ioport.h>
- #include <linux/skbuff.h>
- #include <linux/ethtool.h>
- #include <asm/uaccess.h>
- #include <pcmcia/version.h>
- #include <pcmcia/cs_types.h>
- #include <pcmcia/cs.h>
- #include <pcmcia/cistpl.h>
- #include <pcmcia/cisreg.h>
- #include <pcmcia/ds.h>
- #include <pcmcia/mem_op.h>
- #ifdef CONFIG_NET_PCMCIA_RADIO
- #include <linux/wireless.h>
- /* Warning : these stuff will slow down the driver... */
- #define WIRELESS_SPY /* Enable spying addresses */
- /* Definitions we need for spy */
- typedef struct iw_statistics iw_stats;
- typedef struct iw_quality iw_qual;
- typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
- #endif /* CONFIG_NET_PCMCIA_RADIO */
- #include "rayctl.h"
- #include "ray_cs.h"
- /* 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 RAYLINK_DEBUG
- #define PCMCIA_DEBUG RAYLINK_DEBUG
- #endif
- #ifdef PCMCIA_DEBUG
- static int ray_debug;
- static int pc_debug = PCMCIA_DEBUG;
- MODULE_PARM(pc_debug, "i");
- /* #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); */
- #define DEBUG(n, args...) if (pc_debug>(n)) printk(args);
- #else
- #define DEBUG(n, args...)
- #endif
- /** Prototypes based on PCMCIA skeleton driver *******************************/
- static void ray_config(dev_link_t *link);
- static void ray_release(u_long arg);
- static int ray_event(event_t event, int priority, event_callback_args_t *args);
- static dev_link_t *ray_attach(void);
- static void ray_detach(dev_link_t *);
- /***** Prototypes indicated by device structure ******************************/
- static int ray_dev_close(struct net_device *dev);
- static int ray_dev_config(struct net_device *dev, struct ifmap *map);
- static struct net_device_stats *ray_get_stats(struct net_device *dev);
- static int ray_dev_init(struct net_device *dev);
- static int ray_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
- static int ray_open(struct net_device *dev);
- static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev);
- static void set_multicast_list(struct net_device *dev);
- static void ray_update_multi_list(struct net_device *dev, int all);
- static int translate_frame(ray_dev_t *local, struct tx_msg *ptx,
- unsigned char *data, int len);
- static void ray_build_header(ray_dev_t *local, struct tx_msg *ptx, UCHAR msg_type,
- unsigned char *data);
- static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
- #if WIRELESS_EXT > 7 /* If wireless extension exist in the kernel */
- static iw_stats * ray_get_wireless_stats(struct net_device * dev);
- #endif /* WIRELESS_EXT > 7 */
- /***** Prototypes for raylink functions **************************************/
- static int asc_to_int(char a);
- static void authenticate(ray_dev_t *local);
- static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
- static void authenticate_timeout(u_long);
- static int get_free_ccs(ray_dev_t *local);
- static int get_free_tx_ccs(ray_dev_t *local);
- static void init_startup_params(ray_dev_t *local);
- static int parse_addr(char *in_str, UCHAR *out);
- static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev, UCHAR type);
- static int ray_init(struct net_device *dev);
- static int interrupt_ecf(ray_dev_t *local, int ccs);
- static void ray_reset(struct net_device *dev);
- static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
- static void verify_dl_startup(u_long);
- /* Prototypes for interrpt time functions **********************************/
- static void ray_interrupt (int reg, void *dev_id, struct pt_regs *regs);
- static void clear_interrupt(ray_dev_t *local);
- static void rx_deauthenticate(ray_dev_t *local, struct rcs *prcs,
- unsigned int pkt_addr, int rx_len);
- static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
- static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs *prcs);
- static void release_frag_chain(ray_dev_t *local, struct rcs *prcs);
- static void rx_authenticate(ray_dev_t *local, struct rcs *prcs,
- unsigned int pkt_addr, int rx_len);
- static void rx_data(struct net_device *dev, struct rcs *prcs, unsigned int pkt_addr,
- int rx_len);
- static void associate(ray_dev_t *local);
- /* Card command functions */
- static int dl_startup_params(struct net_device *dev);
- static void join_net(u_long local);
- static void start_net(u_long local);
- /* void start_net(ray_dev_t *local); */
- /* Create symbol table for registering with kernel in init_module */
- EXPORT_SYMBOL(ray_dev_ioctl);
- EXPORT_SYMBOL(ray_rx);
- /*===========================================================================*/
- /* Parameters that can be set with 'insmod' */
- /* Bit map of interrupts to choose from */
- /* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
- static u_long irq_mask = 0xdeb8;
- /* ADHOC=0, Infrastructure=1 */
- static int net_type = ADHOC;
- /* Hop dwell time in Kus (1024 us units defined by 802.11) */
- static int hop_dwell = 128;
- /* Beacon period in Kus */
- static int beacon_period = 256;
- /* power save mode (0 = off, 1 = save power) */
- static int psm;
- /* String for network's Extended Service Set ID. 32 Characters max */
- static char *essid;
- /* Default to encapsulation unless translation requested */
- static int translate = 1;
- static int country = USA;
- static int sniffer;
- static int bc;
- /* 48 bit physical card address if overriding card's real physical
- * address is required. Since IEEE 802.11 addresses are 48 bits
- * like ethernet, an int can't be used, so a string is used. To
- * allow use of addresses starting with a decimal digit, the first
- * character must be a letter and will be ignored. This letter is
- * followed by up to 12 hex digits which are the address. If less
- * than 12 digits are used, the address will be left filled with 0's.
- * Note that bit 0 of the first byte is the broadcast bit, and evil
- * things will happen if it is not 0 in a card address.
- */
- static char *phy_addr = NULL;
- /* The dev_info variable is the "key" that is used to match up this
- device driver with appropriate cards, through the card configuration
- database.
- */
- static dev_info_t dev_info = "ray_cs";
- /* A linked list of "instances" of the ray device. Each actual
- PCMCIA card corresponds to one device instance, and is described
- by one dev_link_t structure (defined in ds.h).
- */
- static dev_link_t *dev_list = NULL;
- /* A dev_link_t 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 dev_link_t structure can be used to point to
- a device-specific private data structure, like this.
- */
- static unsigned int ray_mem_speed = 500;
- MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
- MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
- MODULE_LICENSE("GPL");
- MODULE_PARM(irq_mask,"i");
- MODULE_PARM(net_type,"i");
- MODULE_PARM(hop_dwell,"i");
- MODULE_PARM(beacon_period,"i");
- MODULE_PARM(psm,"i");
- MODULE_PARM(essid,"s");
- MODULE_PARM(translate,"i");
- MODULE_PARM(country,"i");
- MODULE_PARM(sniffer,"i");
- MODULE_PARM(bc,"i");
- MODULE_PARM(phy_addr,"s");
- MODULE_PARM(ray_mem_speed, "i");
- static UCHAR b5_default_startup_parms[] = {
- 0, 0, /* Adhoc station */
- 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, /* Active scan, CA Mode */
- 0, 0, 0, 0, 0, 0, /* No default MAC addr */
- 0x7f, 0xff, /* Frag threshold */
- 0x00, 0x80, /* Hop time 128 Kus*/
- 0x01, 0x00, /* Beacon period 256 Kus */
- 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
- 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
- 0x7f, 0xff, /* RTS threshold */
- 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
- 0x05, /* assoc resp timeout thresh */
- 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max*/
- 0, /* Promiscuous mode */
- 0x0c, 0x0bd, /* Unique word */
- 0x32, /* Slot time */
- 0xff, 0xff, /* roam-low snr, low snr count */
- 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
- 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
- /* b4 - b5 differences start here */
- 0x00, 0x3f, /* CW max */
- 0x00, 0x0f, /* CW min */
- 0x04, 0x08, /* Noise gain, limit offset */
- 0x28, 0x28, /* det rssi, med busy offsets */
- 7, /* det sync thresh */
- 0, 2, 2, /* test mode, min, max */
- 0, /* allow broadcast SSID probe resp */
- 0, 0, /* privacy must start, can join */
- 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
- };
- static UCHAR b4_default_startup_parms[] = {
- 0, 0, /* Adhoc station */
- 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, /* Active scan, CA Mode */
- 0, 0, 0, 0, 0, 0, /* No default MAC addr */
- 0x7f, 0xff, /* Frag threshold */
- 0x02, 0x00, /* Hop time */
- 0x00, 0x01, /* Beacon period */
- 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
- 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
- 0x7f, 0xff, /* RTS threshold */
- 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
- 0x05, /* assoc resp timeout thresh */
- 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max*/
- 0, /* Promiscuous mode */
- 0x0c, 0x0bd, /* Unique word */
- 0x4e, /* Slot time (TBD seems wrong)*/
- 0xff, 0xff, /* roam-low snr, low snr count */
- 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
- 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
- /* b4 - b5 differences start here */
- 0x3f, 0x0f, /* CW max, min */
- 0x04, 0x08, /* Noise gain, limit offset */
- 0x28, 0x28, /* det rssi, med busy offsets */
- 7, /* det sync thresh */
- 0, 2, 2 /* test mode, min, max*/
- };
- /*===========================================================================*/
- static unsigned char eth2_llc[] = {0xaa, 0xaa, 3, 0, 0, 0};
- static char hop_pattern_length[] = { 1,
- USA_HOP_MOD, EUROPE_HOP_MOD,
- JAPAN_HOP_MOD, KOREA_HOP_MOD,
- SPAIN_HOP_MOD, FRANCE_HOP_MOD,
- ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
- JAPAN_TEST_HOP_MOD
- };
- static char rcsid[] = "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
- /*===========================================================================*/
- static void cs_error(client_handle_t handle, int func, int ret)
- {
- error_info_t err = { func, ret };
- pcmcia_report_error(handle, &err);
- }
- /*======================================================================
- This bit of code is used to avoid unregistering network devices
- at inappropriate times. 2.2 and later kernels are fairly picky
- about when this can happen.
-
- ======================================================================*/
- static void flush_stale_links(void)
- {
- dev_link_t *link, *next;
- for (link = dev_list; link; link = next) {
- next = link->next;
- if (link->state & DEV_STALE_LINK)
- ray_detach(link);
- }
- }
- /*=============================================================================
- ray_attach() 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 dev_link_t *ray_attach(void)
- {
- client_reg_t client_reg;
- dev_link_t *link;
- ray_dev_t *local;
- int ret;
- struct net_device *dev;
-
- DEBUG(1, "ray_attach()n");
- flush_stale_links();
- /* Initialize the dev_link_t structure */
- link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
- if (!link)
- return NULL;
- /* Allocate space for private device-specific data */
- dev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
- if (!dev)
- goto fail_alloc_dev;
- local = kmalloc(sizeof(ray_dev_t), GFP_KERNEL);
- if (!local)
- goto fail_alloc_local;
- memset(link, 0, sizeof(struct dev_link_t));
- memset(dev, 0, sizeof(struct net_device));
- memset(local, 0, sizeof(ray_dev_t));
- link->release.function = &ray_release;
- link->release.data = (u_long)link;
- /* The io structure describes IO port mapping. None used here */
- link->io.NumPorts1 = 0;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
- link->io.IOAddrLines = 5;
- /* Interrupt setup. For PCMCIA, driver takes what's given */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
- link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
- link->irq.IRQInfo2 = irq_mask;
- link->irq.Handler = &ray_interrupt;
- /* General socket configuration */
- link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
- link->conf.IntType = INT_MEMORY_AND_IO;
- link->conf.ConfigIndex = 1;
- link->conf.Present = PRESENT_OPTION;
- link->priv = dev;
- link->irq.Instance = dev;
-
- dev->priv = local;
- local->finder = link;
- local->card_status = CARD_INSERTED;
- local->authentication_state = UNAUTHENTICATED;
- local->num_multi = 0;
- DEBUG(2,"ray_attach link = %p, dev = %p, local = %p, intr = %pn",
- link,dev,local,&ray_interrupt);
- /* Raylink entries in the device structure */
- dev->hard_start_xmit = &ray_dev_start_xmit;
- dev->set_config = &ray_dev_config;
- dev->get_stats = &ray_get_stats;
- dev->do_ioctl = &ray_dev_ioctl;
- #if WIRELESS_EXT > 7 /* If wireless extension exist in the kernel */
- dev->get_wireless_stats = ray_get_wireless_stats;
- #endif
- dev->set_multicast_list = &set_multicast_list;
- DEBUG(2,"ray_cs ray_attach calling ether_setup.)n");
- ether_setup(dev);
- dev->init = &ray_dev_init;
- dev->open = &ray_open;
- dev->stop = &ray_dev_close;
- netif_stop_queue(dev);
- /* Register with Card Services */
- link->next = dev_list;
- dev_list = link;
- client_reg.dev_info = &dev_info;
- client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
- client_reg.EventMask =
- CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
- CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
- CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
- client_reg.event_handler = &ray_event;
- client_reg.Version = 0x0210;
- client_reg.event_callback_args.client_data = link;
- DEBUG(2,"ray_cs ray_attach calling CardServices(RegisterClient...)n");
- init_timer(&local->timer);
- ret = pcmcia_register_client(&link->handle, &client_reg);
- if (ret != 0) {
- printk("ray_cs ray_attach RegisterClient unhappy - detachingn");
- cs_error(link->handle, RegisterClient, ret);
- ray_detach(link);
- return NULL;
- }
- DEBUG(2,"ray_cs ray_attach endingn");
- return link;
- fail_alloc_local:
- kfree(dev);
- fail_alloc_dev:
- kfree(link);
- return NULL;
- } /* ray_attach */
- /*=============================================================================
- 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 ray_detach(dev_link_t *link)
- {
- dev_link_t **linkp;
- DEBUG(1, "ray_detach(0x%p)n", link);
-
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
- /* If the device is currently configured and active, we won't
- actually delete it yet. Instead, it is marked so that when
- the release() function is called, that will trigger a proper
- detach().
- */
- del_timer(&link->release);
- if (link->state & DEV_CONFIG) {
- ray_release((u_long)link);
- if(link->state & DEV_STALE_CONFIG) {
- link->state |= DEV_STALE_LINK;
- return;
- }
- }
- /* Break the link with Card Services */
- if (link->handle)
- pcmcia_deregister_client(link->handle);
-
- /* Unlink device structure, free pieces */
- *linkp = link->next;
- if (link->priv) {
- struct net_device *dev = link->priv;
- if (link->dev) unregister_netdev(dev);
- if (dev->priv)
- kfree(dev->priv);
- kfree(link->priv);
- }
- kfree(link);
- DEBUG(2,"ray_cs ray_detach endingn");
- } /* ray_detach */
- /*=============================================================================
- ray_config() is run after a CARD_INSERTION event
- is received, to configure the PCMCIA socket, and to make the
- ethernet device available to the system.
- =============================================================================*/
- #define CS_CHECK(fn, args...)
- while ((last_ret=fn(args))!=0) goto cs_failed
- #define MAX_TUPLE_SIZE 128
- static void ray_config(dev_link_t *link)
- {
- client_handle_t handle = link->handle;
- tuple_t tuple;
- cisparse_t parse;
- int last_fn = 0, last_ret = 0;
- int i;
- u_char buf[MAX_TUPLE_SIZE];
- win_req_t req;
- memreq_t mem;
- struct net_device *dev = (struct net_device *)link->priv;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- DEBUG(1, "ray_config(0x%p)n", link);
- /* This reads the card's CONFIG tuple to find its configuration regs */
- tuple.DesiredTuple = CISTPL_CONFIG;
- CS_CHECK(pcmcia_get_first_tuple, handle, &tuple);
- tuple.TupleData = buf;
- tuple.TupleDataMax = MAX_TUPLE_SIZE;
- tuple.TupleOffset = 0;
- CS_CHECK(pcmcia_get_tuple_data, handle, &tuple);
- CS_CHECK(pcmcia_parse_tuple, handle, &tuple, &parse);
- link->conf.ConfigBase = parse.config.base;
- link->conf.Present = parse.config.rmask[0];
- /* Determine card type and firmware version */
- buf[0] = buf[MAX_TUPLE_SIZE - 1] = 0;
- tuple.DesiredTuple = CISTPL_VERS_1;
- CS_CHECK(pcmcia_get_first_tuple, handle, &tuple);
- tuple.TupleData = buf;
- tuple.TupleDataMax = MAX_TUPLE_SIZE;
- tuple.TupleOffset = 2;
- CS_CHECK(pcmcia_get_tuple_data, handle, &tuple);
- for (i=0; i<tuple.TupleDataLen - 4; i++)
- if (buf[i] == 0) buf[i] = ' ';
- printk(KERN_INFO "ray_cs Detected: %sn",buf);
- /* Configure card */
- link->state |= DEV_CONFIG;
- /* Now allocate an interrupt line. Note that this does not
- actually assign a handler to the interrupt.
- */
- CS_CHECK(pcmcia_request_irq, link->handle, &link->irq);
- dev->irq = link->irq.AssignedIRQ;
-
- /* This actually configures the PCMCIA socket -- setting up
- the I/O windows and the interrupt mapping.
- */
- CS_CHECK(pcmcia_request_configuration, link->handle, &link->conf);
- /*** Set up 32k window for shared memory (transmit and control) ************/
- req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
- req.Base = 0;
- req.Size = 0x8000;
- req.AccessSpeed = ray_mem_speed;
- CS_CHECK(pcmcia_request_window, &link->handle, &req, &link->win);
- mem.CardOffset = 0x0000; mem.Page = 0;
- CS_CHECK(pcmcia_map_mem_page, link->win, &mem);
- local->sram = (UCHAR *)(ioremap(req.Base,req.Size));
- /*** Set up 16k window for shared memory (receive buffer) ***************/
- req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
- req.Base = 0;
- req.Size = 0x4000;
- req.AccessSpeed = ray_mem_speed;
- CS_CHECK(pcmcia_request_window, &link->handle, &req, &local->rmem_handle);
- mem.CardOffset = 0x8000; mem.Page = 0;
- CS_CHECK(pcmcia_map_mem_page, local->rmem_handle, &mem);
- local->rmem = (UCHAR *)(ioremap(req.Base,req.Size));
- /*** Set up window for attribute memory ***********************************/
- req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
- req.Base = 0;
- req.Size = 0x1000;
- req.AccessSpeed = ray_mem_speed;
- CS_CHECK(pcmcia_request_window, &link->handle, &req, &local->amem_handle);
- mem.CardOffset = 0x0000; mem.Page = 0;
- CS_CHECK(pcmcia_map_mem_page, local->amem_handle, &mem);
- local->amem = (UCHAR *)(ioremap(req.Base,req.Size));
- DEBUG(3,"ray_config sram=%pn",local->sram);
- DEBUG(3,"ray_config rmem=%pn",local->rmem);
- DEBUG(3,"ray_config amem=%pn",local->amem);
- if (ray_init(dev) < 0) {
- ray_release((u_long)link);
- return;
- }
- i = register_netdev(dev);
- if (i != 0) {
- printk("ray_config register_netdev() failedn");
- ray_release((u_long)link);
- return;
- }
- strcpy(local->node.dev_name, dev->name);
- link->dev = &local->node;
- link->state &= ~DEV_CONFIG_PENDING;
- printk(KERN_INFO "%s: RayLink, irq %d, hw_addr ",
- dev->name, dev->irq);
- for (i = 0; i < 6; i++)
- printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "n"));
- return;
- cs_failed:
- cs_error(link->handle, last_fn, last_ret);
- ray_release((u_long)link);
- } /* ray_config */
- /*===========================================================================*/
- static int ray_init(struct net_device *dev)
- {
- int i;
- UCHAR *p;
- struct ccs *pccs;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- dev_link_t *link = local->finder;
- DEBUG(1, "ray_init(0x%p)n", dev);
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(0,"ray_init - device not presentn");
- return -1;
- }
- local->net_type = net_type;
- local->sta_type = TYPE_STA;
- /* Copy the startup results to local memory */
- memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
- sizeof(struct startup_res_6));
- /* Check Power up test status and get mac address from card */
- if (local->startup_res.startup_word != 0x80) {
- printk(KERN_INFO "ray_init ERROR card status = %2xn",
- local->startup_res.startup_word);
- local->card_status = CARD_INIT_ERROR;
- return -1;
- }
- local->fw_ver = local->startup_res.firmware_version[0];
- local->fw_bld = local->startup_res.firmware_version[1];
- local->fw_var = local->startup_res.firmware_version[2];
- DEBUG(1,"ray_init firmware version %d.%d n",local->fw_ver, local->fw_bld);
- local->tib_length = 0x20;
- if ((local->fw_ver == 5) && (local->fw_bld >= 30))
- local->tib_length = local->startup_res.tib_length;
- DEBUG(2,"ray_init tib_length = 0x%02xn", local->tib_length);
- /* Initialize CCS's to buffer free state */
- pccs = (struct ccs *)(local->sram + CCS_BASE);
- for (i=0; i<NUMBER_OF_CCS; i++) {
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- }
- init_startup_params(local);
- /* copy mac address to startup parameters */
- if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr))
- {
- p = local->sparm.b4.a_mac_addr;
- }
- else
- {
- memcpy(&local->sparm.b4.a_mac_addr,
- &local->startup_res.station_addr, ADDRLEN);
- p = local->sparm.b4.a_mac_addr;
- }
- clear_interrupt(local); /* Clear any interrupt from the card */
- local->card_status = CARD_AWAITING_PARAM;
- DEBUG(2,"ray_init endingn");
- return 0;
- } /* ray_init */
- /*===========================================================================*/
- /* Download startup parameters to the card and command it to read them */
- static int dl_startup_params(struct net_device *dev)
- {
- int ccsindex;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- struct ccs *pccs;
- dev_link_t *link = local->finder;
- DEBUG(1,"dl_startup_params enteredn");
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs dl_startup_params - device not presentn");
- return -1;
- }
-
- /* Copy parameters to host to ECF area */
- if (local->fw_ver == 0x55)
- memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
- sizeof(struct b4_startup_params));
- else
- memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
- sizeof(struct b5_startup_params));
-
- /* Fill in the CCS fields for the ECF */
- if ((ccsindex = get_free_ccs(local)) < 0) return -1;
- local->dl_param_ccs = ccsindex;
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
- DEBUG(2,"dl_startup_params start ccsindex = %dn", local->dl_param_ccs);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- printk(KERN_INFO "ray dl_startup_params failed - "
- "ECF not ready for intrn");
- local->card_status = CARD_DL_PARAM_ERROR;
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- return -2;
- }
- local->card_status = CARD_DL_PARAM;
- /* Start kernel timer to wait for dl startup to complete. */
- local->timer.expires = jiffies + HZ/2;
- local->timer.data = (long)local;
- local->timer.function = &verify_dl_startup;
- add_timer(&local->timer);
- DEBUG(2,"ray_cs dl_startup_params started timer for verify_dl_startupn");
- return 0;
- } /* dl_startup_params */
- /*===========================================================================*/
- static void init_startup_params(ray_dev_t *local)
- {
- int i;
- if (country > JAPAN_TEST) country = USA;
- else
- if (country < USA) country = USA;
- /* structure for hop time and beacon period is defined here using
- * New 802.11D6.1 format. Card firmware is still using old format
- * until version 6.
- * Before After
- * a_hop_time ms byte a_hop_time ms byte
- * a_hop_time 2s byte a_hop_time ls byte
- * a_hop_time ls byte a_beacon_period ms byte
- * a_beacon_period a_beacon_period ls byte
- *
- * a_hop_time = uS a_hop_time = KuS
- * a_beacon_period = hops a_beacon_period = KuS
- */ /* 64ms = 010000 */
- if (local->fw_ver == 0x55) {
- memcpy((UCHAR *)&local->sparm.b4, b4_default_startup_parms,
- sizeof(struct b4_startup_params));
- /* Translate sane kus input values to old build 4/5 format */
- /* i = hop time in uS truncated to 3 bytes */
- i = (hop_dwell * 1024) & 0xffffff;
- local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
- local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
- local->sparm.b4.a_beacon_period[0] = 0;
- local->sparm.b4.a_beacon_period[1] =
- ((beacon_period/hop_dwell) - 1) & 0xff;
- local->sparm.b4.a_curr_country_code = country;
- local->sparm.b4.a_hop_pattern_length =
- hop_pattern_length[(int)country] - 1;
- if (bc)
- {
- local->sparm.b4.a_ack_timeout = 0x50;
- local->sparm.b4.a_sifs = 0x3f;
- }
- }
- else { /* Version 5 uses real kus values */
- memcpy((UCHAR *)&local->sparm.b5, b5_default_startup_parms,
- sizeof(struct b5_startup_params));
- local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
- local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
- local->sparm.b5.a_beacon_period[0] = (beacon_period >> 8) & 0xff;
- local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
- if (psm)
- local->sparm.b5.a_power_mgt_state = 1;
- local->sparm.b5.a_curr_country_code = country;
- local->sparm.b5.a_hop_pattern_length =
- hop_pattern_length[(int)country];
- }
-
- local->sparm.b4.a_network_type = net_type & 0x01;
- local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
- if (essid != NULL)
- strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
- } /* init_startup_params */
- /*===========================================================================*/
- static void verify_dl_startup(u_long data)
- {
- ray_dev_t *local = (ray_dev_t *)data;
- struct ccs *pccs = ((struct ccs *)(local->sram + CCS_BASE)) + local->dl_param_ccs;
- UCHAR status;
- dev_link_t *link = local->finder;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs verify_dl_startup - device not presentn");
- return;
- }
- #ifdef PCMCIA_DEBUG
- if (pc_debug > 2) {
- int i;
- printk(KERN_DEBUG "verify_dl_startup parameters sent via ccs %d:n",
- local->dl_param_ccs);
- for (i=0; i<sizeof(struct b5_startup_params); i++) {
- printk(" %2x", (unsigned int) readb(local->sram + HOST_TO_ECF_BASE + i));
- }
- printk("n");
- }
- #endif
- status = readb(&pccs->buffer_status);
- if (status!= CCS_BUFFER_FREE)
- {
- printk(KERN_INFO "Download startup params failed. Status = %dn",
- status);
- local->card_status = CARD_DL_PARAM_ERROR;
- return;
- }
- if (local->sparm.b4.a_network_type == ADHOC)
- start_net((u_long)local);
- else
- join_net((u_long)local);
- return;
- } /* end verify_dl_startup */
- /*===========================================================================*/
- /* Command card to start a network */
- static void start_net(u_long data)
- {
- ray_dev_t *local = (ray_dev_t *)data;
- struct ccs *pccs;
- int ccsindex;
- dev_link_t *link = local->finder;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs start_net - device not presentn");
- return;
- }
- /* Fill in the CCS fields for the ECF */
- if ((ccsindex = get_free_ccs(local)) < 0) return;
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- writeb(CCS_START_NETWORK, &pccs->cmd);
- writeb(0, &pccs->var.start_network.update_param);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(1,"ray start net failed - card not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- return;
- }
- local->card_status = CARD_DOING_ACQ;
- return;
- } /* end start_net */
- /*===========================================================================*/
- /* Command card to join a network */
- static void join_net(u_long data)
- {
- ray_dev_t *local = (ray_dev_t *)data;
- struct ccs *pccs;
- int ccsindex;
- dev_link_t *link = local->finder;
-
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs join_net - device not presentn");
- return;
- }
- /* Fill in the CCS fields for the ECF */
- if ((ccsindex = get_free_ccs(local)) < 0) return;
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- writeb(CCS_JOIN_NETWORK, &pccs->cmd);
- writeb(0, &pccs->var.join_network.update_param);
- writeb(0, &pccs->var.join_network.net_initiated);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(1,"ray join net failed - card not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- return;
- }
- local->card_status = CARD_DOING_ACQ;
- return;
- }
- /*============================================================================
- After a card is removed, ray_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 ray_release(u_long arg)
- {
- dev_link_t *link = (dev_link_t *)arg;
- struct net_device *dev = link->priv;
- ray_dev_t *local = dev->priv;
- int i;
-
- DEBUG(1, "ray_release(0x%p)n", link);
- /* If the device is currently in use, we won't release until it
- is actually closed.
- */
- if (link->open) {
- DEBUG(1, "ray_cs: release postponed, '%s' still openn",
- link->dev->dev_name);
- link->state |= DEV_STALE_CONFIG;
- return;
- }
- del_timer(&local->timer);
- link->state &= ~DEV_CONFIG;
- iounmap(local->sram);
- iounmap(local->rmem);
- iounmap(local->amem);
- /* Do bother checking to see if these succeed or not */
- i = pcmcia_release_window(link->win);
- if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(link->win) ret = %xn",i);
- i = pcmcia_release_window(local->amem_handle);
- if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->amem) ret = %xn",i);
- i = pcmcia_release_window(local->rmem_handle);
- if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->rmem) ret = %xn",i);
- i = pcmcia_release_configuration(link->handle);
- if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseConfiguration ret = %xn",i);
- i = pcmcia_release_irq(link->handle, &link->irq);
- if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseIRQ ret = %xn",i);
- DEBUG(2,"ray_release endingn");
- } /* ray_release */
- /*=============================================================================
- The card status event handler. Mostly, this schedules other
- stuff to run after an event is received. A CARD_REMOVAL event
- also sets some flags to discourage the net drivers from trying
- to talk to the card any more.
- When a CARD_REMOVAL event is received, we immediately set a flag
- to block future accesses to this device. All the functions that
- actually access the device should check this flag to make sure
- the card is still present.
- =============================================================================*/
- static int ray_event(event_t event, int priority,
- event_callback_args_t *args)
- {
- dev_link_t *link = args->client_data;
- struct net_device *dev = link->priv;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- DEBUG(1, "ray_event(0x%06x)n", event);
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- netif_device_detach(dev);
- if (link->state & DEV_CONFIG) {
- mod_timer(&link->release, jiffies + HZ/20);
- del_timer(&local->timer);
- }
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- ray_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- if (link->state & DEV_CONFIG) {
- if (link->open)
- netif_device_detach(dev);
- pcmcia_release_configuration(link->handle);
- }
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (link->state & DEV_CONFIG) {
- pcmcia_request_configuration(link->handle, &link->conf);
- if (link->open) {
- ray_reset(dev);
- netif_device_attach(dev);
- }
- }
- break;
- }
- return 0;
- DEBUG(2,"ray_event endingn");
- } /* ray_event */
- /*===========================================================================*/
- int ray_dev_init(struct net_device *dev)
- {
- #ifdef RAY_IMMEDIATE_INIT
- int i;
- #endif /* RAY_IMMEDIATE_INIT */
- ray_dev_t *local = dev->priv;
- dev_link_t *link = local->finder;
- DEBUG(1,"ray_dev_init(dev=%p)n",dev);
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_dev_init - device not presentn");
- return -1;
- }
- #ifdef RAY_IMMEDIATE_INIT
- /* Download startup parameters */
- if ( (i = dl_startup_params(dev)) < 0)
- {
- printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
- "returns 0x%xn",i);
- return -1;
- }
- #else /* RAY_IMMEDIATE_INIT */
- /* Postpone the card init so that we can still configure the card,
- * for example using the Wireless Extensions. The init will happen
- * in ray_open() - Jean II */
- DEBUG(1,"ray_dev_init: postponing card init to ray_open() ; Status = %dn",
- local->card_status);
- #endif /* RAY_IMMEDIATE_INIT */
- /* copy mac and broadcast addresses to linux device */
- memcpy(&dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
- memset(dev->broadcast, 0xff, ETH_ALEN);
- DEBUG(2,"ray_dev_init endingn");
- return 0;
- }
- /*===========================================================================*/
- static int ray_dev_config(struct net_device *dev, struct ifmap *map)
- {
- ray_dev_t *local = dev->priv;
- dev_link_t *link = local->finder;
- /* Dummy routine to satisfy device structure */
- DEBUG(1,"ray_dev_config(dev=%p,ifmap=%p)n",dev,map);
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_dev_config - device not presentn");
- return -1;
- }
- return 0;
- }
- /*===========================================================================*/
- static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
- {
- ray_dev_t *local = dev->priv;
- dev_link_t *link = local->finder;
- short length;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_dev_start_xmit - device not presentn");
- return -1;
- }
- DEBUG(3,"ray_dev_start_xmit(skb=%p, dev=%p)n",skb,dev);
- if (local->authentication_state == NEED_TO_AUTH) {
- DEBUG(0,"ray_cs Sending authentication request.n");
- if (!build_auth_frame (local, local->auth_id, OPEN_AUTH_REQUEST)) {
- local->authentication_state = AUTHENTICATED;
- netif_stop_queue(dev);
- return 1;
- }
- }
- length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
- switch (ray_hw_xmit( skb->data, length, dev, DATA_TYPE)) {
- case XMIT_NO_CCS:
- case XMIT_NEED_AUTH:
- netif_stop_queue(dev);
- return 1;
- case XMIT_NO_INTR:
- case XMIT_MSG_BAD:
- case XMIT_OK:
- default:
- dev->trans_start = jiffies;
- dev_kfree_skb(skb);
- return 0;
- }
- return 0;
- } /* ray_dev_start_xmit */
- /*===========================================================================*/
- static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev,
- UCHAR msg_type)
- {
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- struct ccs *pccs;
- int ccsindex;
- int offset;
- struct tx_msg *ptx; /* Address of xmit buffer in PC space */
- short int addr; /* Address of xmit buffer in card space */
-
- DEBUG(3,"ray_hw_xmit(data=%p, len=%d, dev=%p)n",data,len,dev);
- if (len + TX_HEADER_LENGTH > TX_BUF_SIZE)
- {
- printk(KERN_INFO "ray_hw_xmit packet too large: %d bytesn",len);
- return XMIT_MSG_BAD;
- }
- switch (ccsindex = get_free_tx_ccs(local)) {
- case ECCSBUSY:
- DEBUG(2,"ray_hw_xmit tx_ccs table busyn");
- case ECCSFULL:
- DEBUG(2,"ray_hw_xmit No free tx ccsn");
- case ECARDGONE:
- netif_stop_queue(dev);
- return XMIT_NO_CCS;
- default:
- break;
- }
- addr = TX_BUF_BASE + (ccsindex << 11);
- if (msg_type == DATA_TYPE) {
- local->stats.tx_bytes += len;
- local->stats.tx_packets++;
- }
- ptx = (struct tx_msg *)(local->sram + addr);
- ray_build_header(local, ptx, msg_type, data);
- if (translate) {
- offset = translate_frame(local, ptx, data, len);
- }
- else { /* Encapsulate frame */
- /* TBD TIB length will move address of ptx->var */
- memcpy_toio(&ptx->var, data, len);
- offset = 0;
- }
- /* fill in the CCS */
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- len += TX_HEADER_LENGTH + offset;
- writeb(CCS_TX_REQUEST, &pccs->cmd);
- writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
- writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
- writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
- writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
- /* TBD still need psm_cam? */
- writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
- writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
- writeb(0, &pccs->var.tx_request.antenna);
- DEBUG(3,"ray_hw_xmit default_tx_rate = 0x%xn",
- local->net_default_tx_rate);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(2,"ray_hw_xmit failed - ECF not ready for intrn");
- /* TBD very inefficient to copy packet to buffer, and then not
- send it, but the alternative is to queue the messages and that
- won't be done for a while. Maybe set tbusy until a CCS is free?
- */
- writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
- return XMIT_NO_INTR;
- }
- return XMIT_OK;
- } /* end ray_hw_xmit */
- /*===========================================================================*/
- static int translate_frame(ray_dev_t *local, struct tx_msg *ptx, unsigned char *data,
- int len)
- {
- unsigned short int proto = ((struct ethhdr *)data)->h_proto;
- if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
- DEBUG(3,"ray_cs translate_frame DIX IIn");
- /* Copy LLC header to card buffer */
- memcpy_toio((UCHAR *)&ptx->var, eth2_llc, sizeof(eth2_llc));
- memcpy_toio( ((UCHAR *)&ptx->var) + sizeof(eth2_llc), (UCHAR *)&proto, 2);
- if ((proto == 0xf380) || (proto == 0x3781)) {
- /* This is the selective translation table, only 2 entries */
- writeb(0xf8, (UCHAR *) &((struct snaphdr_t *)ptx->var)->org[3]);
- }
- /* Copy body of ethernet packet without ethernet header */
- memcpy_toio((UCHAR *)&ptx->var + sizeof(struct snaphdr_t),
- data + ETH_HLEN, len - ETH_HLEN);
- return (int) sizeof(struct snaphdr_t) - ETH_HLEN;
- }
- else { /* already 802 type, and proto is length */
- DEBUG(3,"ray_cs translate_frame 802n");
- if (proto == 0xffff) { /* evil netware IPX 802.3 without LLC */
- DEBUG(3,"ray_cs translate_frame evil IPXn");
- memcpy_toio((UCHAR *)&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
- return 0 - ETH_HLEN;
- }
- memcpy_toio((UCHAR *)&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
- return 0 - ETH_HLEN;
- }
- /* TBD do other frame types */
- } /* end translate_frame */
- /*===========================================================================*/
- static void ray_build_header(ray_dev_t *local, struct tx_msg *ptx, UCHAR msg_type,
- unsigned char *data)
- {
- writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
- /*** IEEE 802.11 Address field assignments *************
- TODS FROMDS addr_1 addr_2 addr_3 addr_4
- Adhoc 0 0 dest src (terminal) BSSID N/A
- AP to Terminal 0 1 dest AP(BSSID) source N/A
- Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
- AP to AP 1 1 dest AP src AP dest source
- *******************************************************/
- if (local->net_type == ADHOC) {
- writeb(0, &ptx->mac.frame_ctl_2);
- memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 2 * ADDRLEN);
- memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
- }
- else /* infrastructure */
- {
- if (local->sparm.b4.a_acting_as_ap_status)
- {
- writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
- memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, ADDRLEN);
- memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
- memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_source, ADDRLEN);
- }
- else /* Terminal */
- {
- writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
- memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
- memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, ADDRLEN);
- memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_dest, ADDRLEN);
- }
- }
- } /* end encapsulate_frame */
- /*===========================================================================*/
- static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
- {
- u32 ethcmd;
-
- if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
- return -EFAULT;
-
- switch (ethcmd) {
- case ETHTOOL_GDRVINFO: {
- struct ethtool_drvinfo info = {ETHTOOL_GDRVINFO};
- strncpy(info.driver, "ray_cs", sizeof(info.driver)-1);
- if (copy_to_user(useraddr, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- }
-
- return -EOPNOTSUPP;
- }
- /*====================================================================*/
- static int ray_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
- {
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- dev_link_t *link = local->finder;
- int err = 0;
- #if WIRELESS_EXT > 7
- struct iwreq *wrq = (struct iwreq *) ifr;
- #endif /* WIRELESS_EXT > 7 */
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_dev_ioctl - device not presentn");
- return -1;
- }
- DEBUG(2,"ray_cs IOCTL dev=%p, ifr=%p, cmd = 0x%xn",dev,ifr,cmd);
- /* Validate the command */
- switch (cmd)
- {
- case SIOCETHTOOL:
- err = netdev_ethtool_ioctl(dev, (void *) ifr->ifr_data);
- break;
- #if WIRELESS_EXT > 7
- /* --------------- WIRELESS EXTENSIONS --------------- */
- /* Get name */
- case SIOCGIWNAME:
- strcpy(wrq->u.name, "IEEE 802.11-FH");
- break;
- /* Get frequency/channel */
- case SIOCGIWFREQ:
- wrq->u.freq.m = local->sparm.b5.a_hop_pattern;
- wrq->u.freq.e = 0;
- break;
- /* Set frequency/channel */
- case SIOCSIWFREQ:
- /* Reject if card is already initialised */
- if(local->card_status != CARD_AWAITING_PARAM)
- {
- err = -EBUSY;
- break;
- }
- /* Setting by channel number */
- if ((wrq->u.freq.m > USA_HOP_MOD) || (wrq->u.freq.e > 0))
- err = -EOPNOTSUPP;
- else
- local->sparm.b5.a_hop_pattern = wrq->u.freq.m;
- break;
- /* Get current network name (ESSID) */
- case SIOCGIWESSID:
- if (wrq->u.data.pointer)
- {
- char essid[IW_ESSID_MAX_SIZE + 1];
- /* Get the essid that was set */
- memcpy(essid, local->sparm.b5.a_current_ess_id,
- IW_ESSID_MAX_SIZE);
- essid[IW_ESSID_MAX_SIZE] = ' ';
- /* Push it out ! */
- wrq->u.data.length = strlen(essid) + 1;
- wrq->u.data.flags = 1; /* active */
- copy_to_user(wrq->u.data.pointer, essid, sizeof(essid));
- }
- break;
- /* Set desired network name (ESSID) */
- case SIOCSIWESSID:
- /* Reject if card is already initialised */
- if(local->card_status != CARD_AWAITING_PARAM)
- {
- err = -EBUSY;
- break;
- }
- if (wrq->u.data.pointer)
- {
- char card_essid[IW_ESSID_MAX_SIZE + 1];
-
- /* Check if we asked for `any' */
- if(wrq->u.data.flags == 0)
- {
- /* Corey : can you do that ? */
- err = -EOPNOTSUPP;
- }
- else
- {
- /* Check the size of the string */
- if(wrq->u.data.length >
- IW_ESSID_MAX_SIZE + 1)
- {
- err = -E2BIG;
- break;
- }
- if (copy_from_user(card_essid,
- wrq->u.data.pointer,
- wrq->u.data.length)) {
- err = -EFAULT;
- break;
- }
- card_essid[IW_ESSID_MAX_SIZE] = ' ';
- /* Set the ESSID in the card */
- memcpy(local->sparm.b5.a_current_ess_id, card_essid,
- IW_ESSID_MAX_SIZE);
- }
- }
- break;
- /* Get current Access Point (BSSID in our case) */
- case SIOCGIWAP:
- memcpy(wrq->u.ap_addr.sa_data, local->bss_id, ETH_ALEN);
- wrq->u.ap_addr.sa_family = ARPHRD_ETHER;
- break;
- /* Get the current bit-rate */
- case SIOCGIWRATE:
- if(local->net_default_tx_rate == 3)
- wrq->u.bitrate.value = 2000000; /* Hum... */
- else
- wrq->u.bitrate.value = local->net_default_tx_rate * 500000;
- wrq->u.bitrate.fixed = 0; /* We are in auto mode */
- break;
- /* Set the desired bit-rate */
- case SIOCSIWRATE:
- /* Check if rate is in range */
- if((wrq->u.bitrate.value != 1000000) &&
- (wrq->u.bitrate.value != 2000000))
- {
- err = -EINVAL;
- break;
- }
- /* Hack for 1.5 Mb/s instead of 2 Mb/s */
- if((local->fw_ver == 0x55) && /* Please check */
- (wrq->u.bitrate.value == 2000000))
- local->net_default_tx_rate = 3;
- else
- local->net_default_tx_rate = wrq->u.bitrate.value/500000;
- break;
- /* Get the current RTS threshold */
- case SIOCGIWRTS:
- wrq->u.rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
- + local->sparm.b5.a_rts_threshold[1];
- #if WIRELESS_EXT > 8
- wrq->u.rts.disabled = (wrq->u.rts.value == 32767);
- #endif /* WIRELESS_EXT > 8 */
- wrq->u.rts.fixed = 1;
- break;
- /* Set the desired RTS threshold */
- case SIOCSIWRTS:
- {
- int rthr = wrq->u.rts.value;
- /* Reject if card is already initialised */
- if(local->card_status != CARD_AWAITING_PARAM)
- {
- err = -EBUSY;
- break;
- }
- /* if(wrq->u.rts.fixed == 0) we should complain */
- #if WIRELESS_EXT > 8
- if(wrq->u.rts.disabled)
- rthr = 32767;
- else
- #endif /* WIRELESS_EXT > 8 */
- if((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
- {
- err = -EINVAL;
- break;
- }
- local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
- local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
- }
- break;
- /* Get the current fragmentation threshold */
- case SIOCGIWFRAG:
- wrq->u.frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
- + local->sparm.b5.a_frag_threshold[1];
- #if WIRELESS_EXT > 8
- wrq->u.frag.disabled = (wrq->u.frag.value == 32767);
- #endif /* WIRELESS_EXT > 8 */
- wrq->u.frag.fixed = 1;
- break;
- /* Set the desired fragmentation threshold */
- case SIOCSIWFRAG:
- {
- int fthr = wrq->u.frag.value;
- /* Reject if card is already initialised */
- if(local->card_status != CARD_AWAITING_PARAM)
- {
- err = -EBUSY;
- break;
- }
- /* if(wrq->u.frag.fixed == 0) should complain */
- #if WIRELESS_EXT > 8
- if(wrq->u.frag.disabled)
- fthr = 32767;
- else
- #endif /* WIRELESS_EXT > 8 */
- if((fthr < 256) || (fthr > 2347)) /* To check out ! */
- {
- err = -EINVAL;
- break;
- }
- local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
- local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
- }
- break;
- #endif /* WIRELESS_EXT > 7 */
- #if WIRELESS_EXT > 8
- /* Get the current mode of operation */
- case SIOCGIWMODE:
- if(local->sparm.b5.a_network_type)
- wrq->u.mode = IW_MODE_INFRA;
- else
- wrq->u.mode = IW_MODE_ADHOC;
- break;
- /* Set the current mode of operation */
- case SIOCSIWMODE:
- {
- char card_mode = 1;
-
- /* Reject if card is already initialised */
- if(local->card_status != CARD_AWAITING_PARAM)
- {
- err = -EBUSY;
- break;
- }
- switch (wrq->u.mode)
- {
- case IW_MODE_ADHOC:
- card_mode = 0;
- // Fall through
- case IW_MODE_INFRA:
- local->sparm.b5.a_network_type = card_mode;
- break;
- default:
- err = -EINVAL;
- }
- }
- break;
- #endif /* WIRELESS_EXT > 8 */
- #if WIRELESS_EXT > 7
- /* ------------------ IWSPY SUPPORT ------------------ */
- /* Define the range (variations) of above parameters */
- case SIOCGIWRANGE:
- /* Basic checking... */
- if(wrq->u.data.pointer != (caddr_t) 0)
- {
- struct iw_range range;
- memset((char *) &range, 0, sizeof(struct iw_range));
- /* Set the length (very important for backward compatibility) */
- wrq->u.data.length = sizeof(struct iw_range);
- #if WIRELESS_EXT > 10
- /* Set the Wireless Extension versions */
- range.we_version_compiled = WIRELESS_EXT;
- range.we_version_source = 9;
- #endif /* WIRELESS_EXT > 10 */
- /* Set information in the range struct */
- range.throughput = 1.1 * 1000 * 1000; /* Put the right number here */
- range.num_channels = hop_pattern_length[(int)country];
- range.num_frequency = 0;
- range.max_qual.qual = 0;
- range.max_qual.level = 255; /* What's the correct value ? */
- range.max_qual.noise = 255; /* Idem */
- range.num_bitrates = 2;
- range.bitrate[0] = 1000000; /* 1 Mb/s */
- range.bitrate[1] = 2000000; /* 2 Mb/s */
- /* Copy structure to the user buffer */
- if(copy_to_user(wrq->u.data.pointer, &range,
- sizeof(struct iw_range)))
- err = -EFAULT;
- }
- break;
- #ifdef WIRELESS_SPY
- /* Set addresses to spy */
- case SIOCSIWSPY:
- /* Check the number of addresses */
- if(wrq->u.data.length > IW_MAX_SPY)
- {
- err = -E2BIG;
- break;
- }
- local->spy_number = wrq->u.data.length;
- /* If there is some addresses to copy */
- if(local->spy_number > 0)
- {
- struct sockaddr address[IW_MAX_SPY];
- int i;
- /* Copy addresses to the driver */
- if(copy_from_user(address, wrq->u.data.pointer,
- sizeof(struct sockaddr) * local->spy_number))
- {
- err = -EFAULT;
- break;
- }
- /* Copy addresses to the lp structure */
- for(i = 0; i < local->spy_number; i++)
- memcpy(local->spy_address[i], address[i].sa_data, ETH_ALEN);
- /* Reset structure... */
- memset(local->spy_stat, 0x00, sizeof(iw_qual) * IW_MAX_SPY);
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG "SetSpy - Set of new addresses is :n");
- for(i = 0; i < local->spy_number; i++)
- printk(KERN_DEBUG "%02X:%02X:%02X:%02X:%02X:%02Xn",
- local->spy_address[i][0],
- local->spy_address[i][1],
- local->spy_address[i][2],
- local->spy_address[i][3],
- local->spy_address[i][4],
- local->spy_address[i][5]);
- #endif /* DEBUG_IOCTL_INFO */
- }
- break;
- /* Get the spy list and spy stats */
- case SIOCGIWSPY:
- /* Set the number of addresses */
- wrq->u.data.length = local->spy_number;
- /* If the user want to have the addresses back... */
- if((local->spy_number > 0) && (wrq->u.data.pointer != (caddr_t) 0))
- {
- struct sockaddr address[IW_MAX_SPY];
- int i;
- /* Copy addresses from the lp structure */
- for(i = 0; i < local->spy_number; i++)
- {
- memcpy(address[i].sa_data, local->spy_address[i], ETH_ALEN);
- address[i].sa_family = ARPHRD_ETHER;
- }
- /* Copy addresses to the user buffer */
- if(copy_to_user(wrq->u.data.pointer, address,
- sizeof(struct sockaddr) * local->spy_number))
- {
- err = -EFAULT;
- break;
- }
- /* Copy stats to the user buffer (just after) */
- if(copy_to_user(wrq->u.data.pointer +
- (sizeof(struct sockaddr) * local->spy_number),
- local->spy_stat, sizeof(iw_qual) * local->spy_number))
- {
- err = -EFAULT;
- break;
- }
- /* Reset updated flags */
- for(i = 0; i < local->spy_number; i++)
- local->spy_stat[i].updated = 0x0;
- } /* if(pointer != NULL) */
- break;
- #endif /* WIRELESS_SPY */
- /* ------------------ PRIVATE IOCTL ------------------ */
- #ifndef SIOCIWFIRSTPRIV
- #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
- #endif /* SIOCIWFIRSTPRIV */
- #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
- #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
- #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
- case SIOCSIPFRAMING:
- if(!capable(CAP_NET_ADMIN)) /* For private IOCTLs, we need to check permissions */
- {
- err = -EPERM;
- break;
- }
- translate = *(wrq->u.name); /* Set framing mode */
- break;
- case SIOCGIPFRAMING:
- *(wrq->u.name) = translate;
- break;
- case SIOCGIPCOUNTRY:
- *(wrq->u.name) = country;
- break;
- case SIOCGIWPRIV:
- /* Export our "private" intercace */
- if(wrq->u.data.pointer != (caddr_t) 0)
- {
- struct iw_priv_args priv[] =
- { /* cmd, set_args, get_args, name */
- { SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "set_framing" },
- { SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_framing" },
- { SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_country" },
- };
- /* Set the number of ioctl available */
- wrq->u.data.length = 3;
- /* Copy structure to the user buffer */
- if(copy_to_user(wrq->u.data.pointer, (u_char *) priv,
- sizeof(priv)))
- err = -EFAULT;
- }
- break;
- #endif /* WIRELESS_EXT > 7 */
- default:
- DEBUG(0,"ray_dev_ioctl cmd = 0x%xn", cmd);
- err = -EOPNOTSUPP;
- }
- return err;
- } /* end ray_dev_ioctl */
- /*===========================================================================*/
- #if WIRELESS_EXT > 7 /* If wireless extension exist in the kernel */
- static iw_stats * ray_get_wireless_stats(struct net_device * dev)
- {
- ray_dev_t * local = (ray_dev_t *) dev->priv;
- dev_link_t *link = local->finder;
- struct status *p = (struct status *)(local->sram + STATUS_BASE);
- if(local == (ray_dev_t *) NULL)
- return (iw_stats *) NULL;
- local->wstats.status = local->card_status;
- #ifdef WIRELESS_SPY
- if((local->spy_number > 0) && (local->sparm.b5.a_network_type == 0))
- {
- /* Get it from the first node in spy list */
- local->wstats.qual.qual = local->spy_stat[0].qual;
- local->wstats.qual.level = local->spy_stat[0].level;
- local->wstats.qual.noise = local->spy_stat[0].noise;
- local->wstats.qual.updated = local->spy_stat[0].updated;
- }
- #endif /* WIRELESS_SPY */
- if((link->state & DEV_PRESENT)) {
- local->wstats.qual.noise = readb(&p->rxnoise);
- local->wstats.qual.updated |= 4;
- }
- return &local->wstats;
- } /* end ray_get_wireless_stats */
- #endif /* WIRELESS_EXT > 7 */
- /*===========================================================================*/
- static int ray_open(struct net_device *dev)
- {
- dev_link_t *link;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
-
- MOD_INC_USE_COUNT;
- DEBUG(1, "ray_open('%s')n", dev->name);
- for (link = dev_list; link; link = link->next)
- if (link->priv == dev) break;
- if (!DEV_OK(link)) {
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- if (link->open == 0) local->num_multi = 0;
- link->open++;
- /* If the card is not started, time to start it ! - Jean II */
- if(local->card_status == CARD_AWAITING_PARAM) {
- int i;
- DEBUG(1,"ray_open: doing init now !n");
- /* Download startup parameters */
- if ( (i = dl_startup_params(dev)) < 0)
- {
- printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
- "returns 0x%xn",i);
- return -1;
- }
- }
- if (sniffer) netif_stop_queue(dev);
- else netif_start_queue(dev);
- DEBUG(2,"ray_open endingn");
- return 0;
- } /* end ray_open */
- /*===========================================================================*/
- static int ray_dev_close(struct net_device *dev)
- {
- dev_link_t *link;
- DEBUG(1, "ray_dev_close('%s')n", dev->name);
- for (link = dev_list; link; link = link->next)
- if (link->priv == dev) break;
- if (link == NULL)
- return -ENODEV;
- link->open--;
- netif_stop_queue(dev);
- if (link->state & DEV_STALE_CONFIG)
- mod_timer(&link->release, jiffies + HZ/20);
- /* In here, we should stop the hardware (stop card from beeing active)
- * and set local->card_status to CARD_AWAITING_PARAM, so that while the
- * card is closed we can chage its configuration.
- * Probably also need a COR reset to get sane state - Jean II */
- MOD_DEC_USE_COUNT;
- return 0;
- } /* end ray_dev_close */
- /*===========================================================================*/
- static void ray_reset(struct net_device *dev) {
- DEBUG(1,"ray_reset enteredn");
- return;
- }
- /*===========================================================================*/
- /* Cause a firmware interrupt if it is ready for one */
- /* Return nonzero if not ready */
- static int interrupt_ecf(ray_dev_t *local, int ccs)
- {
- int i = 50;
- dev_link_t *link = local->finder;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs interrupt_ecf - device not presentn");
- return -1;
- }
- DEBUG(2,"interrupt_ecf(local=%p, ccs = 0x%xn",local,ccs);
- while ( i &&
- (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & ECF_INTR_SET))
- i--;
- if (i == 0) {
- DEBUG(2,"ray_cs interrupt_ecf card not ready for interruptn");
- return -1;
- }
- /* Fill the mailbox, then kick the card */
- writeb(ccs, local->sram + SCB_BASE);
- writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
- return 0;
- } /* interrupt_ecf */
- /*===========================================================================*/
- /* Get next free transmit CCS */
- /* Return - index of current tx ccs */
- static int get_free_tx_ccs(ray_dev_t *local)
- {
- int i;
- struct ccs *pccs = (struct ccs *)(local->sram + CCS_BASE);
- dev_link_t *link = local->finder;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs get_free_tx_ccs - device not presentn");
- return ECARDGONE;
- }
- if (test_and_set_bit(0,&local->tx_ccs_lock)) {
- DEBUG(1,"ray_cs tx_ccs_lock busyn");
- return ECCSBUSY;
- }
- for (i=0; i < NUMBER_OF_TX_CCS; i++) {
- if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
- writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
- writeb(CCS_END_LIST, &(pccs+i)->link);
- local->tx_ccs_lock = 0;
- return i;
- }
- }
- local->tx_ccs_lock = 0;
- DEBUG(2,"ray_cs ERROR no free tx CCS for raylink cardn");
- return ECCSFULL;
- } /* get_free_tx_ccs */
- /*===========================================================================*/
- /* Get next free CCS */
- /* Return - index of current ccs */
- static int get_free_ccs(ray_dev_t *local)
- {
- int i;
- struct ccs *pccs = (struct ccs *)(local->sram + CCS_BASE);
- dev_link_t *link = local->finder;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs get_free_ccs - device not presentn");
- return ECARDGONE;
- }
- if (test_and_set_bit(0,&local->ccs_lock)) {
- DEBUG(1,"ray_cs ccs_lock busyn");
- return ECCSBUSY;
- }
- for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
- if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
- writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
- writeb(CCS_END_LIST, &(pccs+i)->link);
- local->ccs_lock = 0;
- return i;
- }
- }
- local->ccs_lock = 0;
- DEBUG(1,"ray_cs ERROR no free CCS for raylink cardn");
- return ECCSFULL;
- } /* get_free_ccs */
- /*===========================================================================*/
- static void authenticate_timeout(u_long data)
- {
- ray_dev_t *local = (ray_dev_t *)data;
- del_timer(&local->timer);
- printk(KERN_INFO "ray_cs Authentication with access point failed"
- " - timeoutn");
- join_net((u_long)local);
- }
- /*===========================================================================*/
- static int asc_to_int(char a)
- {
- if (a < '0') return -1;
- if (a <= '9') return (a - '0');
- if (a < 'A') return -1;
- if (a <= 'F') return (10 + a - 'A');
- if (a < 'a') return -1;
- if (a <= 'f') return (10 + a - 'a');
- return -1;
- }
- /*===========================================================================*/
- static int parse_addr(char *in_str, UCHAR *out)
- {
- int len;
- int i,j,k;
- int status;
-
- if (in_str == NULL) return 0;
- if ((len = strlen(in_str)) < 2) return 0;
- memset(out, 0, ADDRLEN);
- status = 1;
- j = len - 1;
- if (j > 12) j = 12;
- i = 5;
-
- while (j > 0)
- {
- if ((k = asc_to_int(in_str[j--])) != -1) out[i] = k;
- else return 0;
- if (j == 0) break;
- if ((k = asc_to_int(in_str[j--])) != -1) out[i] += k << 4;
- else return 0;
- if (!i--) break;
- }
- return status;
- }
- /*===========================================================================*/
- static struct net_device_stats *ray_get_stats(struct net_device *dev)
- {
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- dev_link_t *link = local->finder;
- struct status *p = (struct status *)(local->sram + STATUS_BASE);
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs net_device_stats - device not presentn");
- return &local->stats;
- }
- if (readb(&p->mrx_overflow_for_host))
- {
- local->stats.rx_over_errors += ntohs(readb(&p->mrx_overflow));
- writeb(0,&p->mrx_overflow);
- writeb(0,&p->mrx_overflow_for_host);
- }
- if (readb(&p->mrx_checksum_error_for_host))
- {
- local->stats.rx_crc_errors += ntohs(readb(&p->mrx_checksum_error));
- writeb(0,&p->mrx_checksum_error);
- writeb(0,&p->mrx_checksum_error_for_host);
- }
- if (readb(&p->rx_hec_error_for_host))
- {
- local->stats.rx_frame_errors += ntohs(readb(&p->rx_hec_error));
- writeb(0,&p->rx_hec_error);
- writeb(0,&p->rx_hec_error_for_host);
- }
- return &local->stats;
- }
- /*===========================================================================*/
- static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len)
- {
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- dev_link_t *link = local->finder;
- int ccsindex;
- int i;
- struct ccs *pccs;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_update_parm - device not presentn");
- return;
- }
- if ((ccsindex = get_free_ccs(local)) < 0)
- {
- DEBUG(0,"ray_update_parm - No free ccsn");
- return;
- }
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
- writeb(objid, &pccs->var.update_param.object_id);
- writeb(1, &pccs->var.update_param.number_objects);
- writeb(0, &pccs->var.update_param.failure_cause);
- for (i=0; i<len; i++) {
- writeb(value[i], local->sram + HOST_TO_ECF_BASE);
- }
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(0,"ray_cs associate failed - ECF not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- }
- }
- /*===========================================================================*/
- static void ray_update_multi_list(struct net_device *dev, int all)
- {
- struct dev_mc_list *dmi, **dmip;
- int ccsindex;
- struct ccs *pccs;
- int i = 0;
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- dev_link_t *link = local->finder;
- UCHAR *p = local->sram + HOST_TO_ECF_BASE;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_update_multi_list - device not presentn");
- return;
- }
- else
- DEBUG(2,"ray_update_multi_list(%p)n",dev);
- if ((ccsindex = get_free_ccs(local)) < 0)
- {
- DEBUG(1,"ray_update_multi - No free ccsn");
- return;
- }
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
- if (all) {
- writeb(0xff, &pccs->var);
- local->num_multi = 0xff;
- }
- else {
- /* Copy the kernel's list of MC addresses to card */
- for (dmip=&dev->mc_list; (dmi=*dmip)!=NULL; dmip=&dmi->next) {
- memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
- DEBUG(1,"ray_update_multi add addr %02x%02x%02x%02x%02x%02xn",dmi->dmi_addr[0],dmi->dmi_addr[1],dmi->dmi_addr[2],dmi->dmi_addr[3],dmi->dmi_addr[4],dmi->dmi_addr[5]);
- p += ETH_ALEN;
- i++;
- }
- if (i > 256/ADDRLEN) i = 256/ADDRLEN;
- writeb((UCHAR)i, &pccs->var);
- DEBUG(1,"ray_cs update_multi %d addresses in listn", i);
- /* Interrupt the firmware to process the command */
- local->num_multi = i;
- }
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(1,"ray_cs update_multi failed - ECF not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- }
- } /* end ray_update_multi_list */
- /*===========================================================================*/
- static void set_multicast_list(struct net_device *dev)
- {
- ray_dev_t *local = (ray_dev_t *)dev->priv;
- UCHAR promisc;
- DEBUG(2,"ray_cs set_multicast_list(%p)n",dev);
- if (dev->flags & IFF_PROMISC)
- {
- if (local->sparm.b5.a_promiscuous_mode == 0) {
- DEBUG(1,"ray_cs set_multicast_list promisc onn");
- local->sparm.b5.a_promiscuous_mode = 1;
- promisc = 1;
- ray_update_parm(dev, OBJID_promiscuous_mode,
- &promisc, sizeof(promisc));
- }
- }
- else {
- if (local->sparm.b5.a_promiscuous_mode == 1) {
- DEBUG(1,"ray_cs set_multicast_list promisc offn");
- local->sparm.b5.a_promiscuous_mode = 0;
- promisc = 0;
- ray_update_parm(dev, OBJID_promiscuous_mode,
- &promisc, sizeof(promisc));
- }
- }
- if (dev->flags & IFF_ALLMULTI) ray_update_multi_list(dev, 1);
- else
- {
- if (local->num_multi != dev->mc_count) ray_update_multi_list(dev, 0);
- }
- } /* end set_multicast_list */
- /*=============================================================================
- * All routines below here are run at interrupt time.
- =============================================================================*/
- static void ray_interrupt(int irq, void *dev_id, struct pt_regs * regs)
- {
- struct net_device *dev = (struct net_device *)dev_id;
- dev_link_t *link;
- ray_dev_t *local;
- struct ccs *pccs;
- struct rcs *prcs;
- UCHAR rcsindex;
- UCHAR tmp;
- UCHAR cmd;
- UCHAR status;
- if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
- return;
- DEBUG(4,"ray_cs: interrupt for *dev=%pn",dev);
- local = (ray_dev_t *)dev->priv;
- link = (dev_link_t *)local->finder;
- if ( ! (link->state & DEV_PRESENT) || link->state & DEV_SUSPEND ) {
- DEBUG(2,"ray_cs interrupt from device not present or suspended.n");
- return;
- }
- rcsindex = readb(&((struct scb *)(local->sram))->rcs_index);
- if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS))
- {
- DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%xn",rcsindex);
- clear_interrupt(local);
- return;
- }
- if (rcsindex < NUMBER_OF_CCS) /* If it's a returned CCS */
- {
- pccs = ((struct ccs *) (local->sram + CCS_BASE)) + rcsindex;
- cmd = readb(&pccs->cmd);
- status = readb(&pccs->buffer_status);
- switch (cmd)
- {
- case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
- del_timer(&local->timer);
- if (status == CCS_COMMAND_COMPLETE) {
- DEBUG(1,"ray_cs interrupt download_startup_parameters OKn");
- }
- else {
- DEBUG(1,"ray_cs interrupt download_startup_parameters failn");
- }
- break;
- case CCS_UPDATE_PARAMS:
- DEBUG(1,"ray_cs interrupt update params donen");
- if (status != CCS_COMMAND_COMPLETE) {
- tmp = readb(&pccs->var.update_param.failure_cause);
- DEBUG(0,"ray_cs interrupt update params failed - reason %dn",tmp);
- }
- break;
- case CCS_REPORT_PARAMS:
- DEBUG(1,"ray_cs interrupt report params donen");
- break;
- case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
- DEBUG(1,"ray_cs interrupt CCS Update Multicast List donen");
- break;
- case CCS_UPDATE_POWER_SAVINGS_MODE:
- DEBUG(1,"ray_cs interrupt update power save mode donen");
- break;
- case CCS_START_NETWORK:
- case CCS_JOIN_NETWORK:
- if (status == CCS_COMMAND_COMPLETE) {
- if (readb(&pccs->var.start_network.net_initiated) == 1) {
- DEBUG(0,"ray_cs interrupt network "%s" startedn",
- local->sparm.b4.a_current_ess_id);
- }
- else {
- DEBUG(0,"ray_cs interrupt network "%s" joinedn",
- local->sparm.b4.a_current_ess_id);
- }
- memcpy_fromio(&local->bss_id,pccs->var.start_network.bssid,ADDRLEN);
- if (local->fw_ver == 0x55) local->net_default_tx_rate = 3;
- else local->net_default_tx_rate =
- readb(&pccs->var.start_network.net_default_tx_rate);
- local->encryption = readb(&pccs->var.start_network.encryption);
- if (!sniffer && (local->net_type == INFRA)
- && !(local->sparm.b4.a_acting_as_ap_status)) {
- authenticate(local);
- }
- local->card_status = CARD_ACQ_COMPLETE;
- }
- else {
- local->card_status = CARD_ACQ_FAILED;
- del_timer(&local->timer);
- local->timer.expires = jiffies + HZ*5;
- local->timer.data = (long)local;
- if (status == CCS_START_NETWORK) {
- DEBUG(0,"ray_cs interrupt network "%s" start failedn",
- local->sparm.b4.a_current_ess_id);
- local->timer.function = &start_net;
- }
- else {
- DEBUG(0,"ray_cs interrupt network "%s" join failedn",
- local->sparm.b4.a_current_ess_id);
- local->timer.function = &join_net;
- }
- add_timer(&local->timer);
- }
- break;
- case CCS_START_ASSOCIATION:
- if (status == CCS_COMMAND_COMPLETE) {
- local->card_status = CARD_ASSOC_COMPLETE;
- DEBUG(0,"ray_cs association successfuln");
- }
- else
- {
- DEBUG(0,"ray_cs association failed,n");
- local->card_status = CARD_ASSOC_FAILED;
- join_net((u_long)local);
- }
- break;
- case CCS_TX_REQUEST:
- if (status == CCS_COMMAND_COMPLETE) {
- DEBUG(3,"ray_cs interrupt tx request completen");
- }
- else {
- DEBUG(1,"ray_cs interrupt tx request failedn");
- }
- if (!sniffer) netif_start_queue(dev);
- netif_wake_queue(dev);
- break;
- case CCS_TEST_MEMORY:
- DEBUG(1,"ray_cs interrupt mem test donen");
- break;
- case CCS_SHUTDOWN:
- DEBUG(1,"ray_cs interrupt Unexpected CCS returned - Shutdownn");
- break;
- case CCS_DUMP_MEMORY:
- DEBUG(1,"ray_cs interrupt dump memory donen");
- break;
- case CCS_START_TIMER:
- DEBUG(2,"ray_cs interrupt DING - raylink timer expiredn");
- break;
- default:
- DEBUG(1,"ray_cs interrupt Unexpected CCS 0x%x returned 0x%xn",
- rcsindex, cmd);
- }
- writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
- }
- else /* It's an RCS */
- {
- prcs = ((struct rcs *)(local->sram + CCS_BASE)) + rcsindex;
-
- switch (readb(&prcs->interrupt_id))
- {
- case PROCESS_RX_PACKET:
- ray_rx(dev, local, prcs);
- break;
- case REJOIN_NET_COMPLETE:
- DEBUG(1,"ray_cs interrupt rejoin net completen");
- local->card_status = CARD_ACQ_COMPLETE;
- /* do we need to clear tx buffers CCS's? */
- if (local->sparm.b4.a_network_type == ADHOC) {
- if (!sniffer) netif_start_queue(dev);
- }
- else {
- memcpy_fromio(&local->bss_id, prcs->var.rejoin_net_complete.bssid, ADDRLEN);
- DEBUG(1,"ray_cs new BSSID = %02x%02x%02x%02x%02x%02xn",
- local->bss_id[0], local->bss_id[1], local->bss_id[2],
- local->bss_id[3], local->bss_id[4], local->bss_id[5]);
- if (!sniffer) authenticate(local);
- }
- break;
- case ROAMING_INITIATED:
- DEBUG(1,"ray_cs interrupt roaming initiatedn");
- netif_stop_queue(dev);
- local->card_status = CARD_DOING_ACQ;
- break;
- case JAPAN_CALL_SIGN_RXD:
- DEBUG(1,"ray_cs interrupt japan call sign rxn");
- break;
- default:
- DEBUG(1,"ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%xn",
- rcsindex, (unsigned int) readb(&prcs->interrupt_id));
- break;
- }
- writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
- }
- clear_interrupt(local);
- } /* ray_interrupt */
- /*===========================================================================*/
- static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs *prcs)
- {
- int rx_len;
- unsigned int pkt_addr;
- UCHAR *pmsg;
- DEBUG(4,"ray_rx process rx packetn");
- /* Calculate address of packet within Rx buffer */
- pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
- + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
- /* Length of first packet fragment */
- rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
- + readb(&prcs->var.rx_packet.rx_data_length[1]);
- local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
- pmsg = local->rmem + pkt_addr;
- switch(readb(pmsg))
- {
- case DATA_TYPE:
- DEBUG(4,"ray_rx data typen");
- rx_data(dev, prcs, pkt_addr, rx_len);
- break;
- case AUTHENTIC_TYPE:
- DEBUG(4,"ray_rx authentic typen");
- if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
- else rx_authenticate(local, prcs, pkt_addr, rx_len);
- break;
- case DEAUTHENTIC_TYPE:
- DEBUG(4,"ray_rx deauth typen");
- if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
- else rx_deauthenticate(local, prcs, pkt_addr, rx_len);
- break;
- case NULL_MSG_TYPE:
- DEBUG(3,"ray_cs rx NULL msgn");
- break;
- case BEACON_TYPE:
- DEBUG(4,"ray_rx beacon typen");
- if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
- copy_from_rx_buff(local, (UCHAR *)&local->last_bcn, pkt_addr,
- rx_len < sizeof(struct beacon_rx) ?
- rx_len : sizeof(struct beacon_rx));
- local->beacon_rxed = 1;
- /* Get the statistics so the card counters never overflow */
- ray_get_stats(dev);
- break;
- default:
- DEBUG(0,"ray_cs unknown pkt type %2xn", (unsigned int) readb(pmsg));
- break;
- }
- } /* end ray_rx */
- /*===========================================================================*/
- static void rx_data(struct net_device *dev, struct rcs *prcs, unsigned int pkt_addr,
- int rx_len)
- {
- struct sk_buff *skb = NULL;
- struct rcs *prcslink = prcs;
- ray_dev_t *local = dev->priv;
- UCHAR *rx_ptr;
- int total_len;
- int tmp;
- #ifdef WIRELESS_SPY
- int siglev = local->last_rsl;
- u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
- #endif
- if (!sniffer) {
- if (translate) {
- /* TBD length needs fixing for translated header */
- if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
- rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
- {
- DEBUG(0,"ray_cs invalid packet length %d received n",rx_len);
- return;
- }
- }
- else /* encapsulated ethernet */ {
- if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
- rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
- {
- DEBUG(0,"ray_cs invalid packet length %d received n",rx_len);
- return;
- }
- }
- }
- DEBUG(4,"ray_cs rx_data packetn");
- /* If fragmented packet, verify sizes of fragments add up */
- if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
- DEBUG(1,"ray_cs rx'ed fragmentn");
- tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
- + readb(&prcs->var.rx_packet.totalpacketlength[1]);
- total_len = tmp;
- prcslink = prcs;
- do {
- tmp -= (readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
- + readb(&prcslink->var.rx_packet.rx_data_length[1]);
- if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) == 0xFF
- || tmp < 0) break;
- prcslink = ((struct rcs *)(local->sram + CCS_BASE))
- + readb(&prcslink->link_field);
- } while (1);
- if (tmp < 0)
- {
- DEBUG(0,"ray_cs rx_data fragment lengths don't add upn");
- local->stats.rx_dropped++;
- release_frag_chain(local, prcs);
- return;
- }
- }
- else { /* Single unfragmented packet */
- total_len = rx_len;
- }
- skb = dev_alloc_skb( total_len+5 );
- if (skb == NULL)
- {
- DEBUG(0,"ray_cs rx_data could not allocate skbn");
- local->stats.rx_dropped++;
- if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
- release_frag_chain(local, prcs);
- return;
- }
- skb_reserve( skb, 2); /* Align IP on 16 byte (TBD check this)*/
- skb->dev = dev;
- DEBUG(4,"ray_cs rx_data total_len = %x, rx_len = %xn",total_len,rx_len);
- /************************/
- /* Reserve enough room for the whole damn packet. */
- rx_ptr = skb_put( skb, total_len);
- /* Copy the whole packet to sk_buff */
- rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
- /* Get source address */
- #ifdef WIRELESS_SPY
- memcpy(linksrcaddr, ((struct mac_header *)skb->data)->addr_2, ETH_ALEN);
- #endif
- /* Now, deal with encapsulation/translation/sniffer */
- if (!sniffer) {
- if (!translate) {
- /* Encapsulated ethernet, so just lop off 802.11 MAC header */
- /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
- skb_pull( skb, RX_MAC_HEADER_LENGTH);
- }
- else {
- /* Do translation */
- untranslate(local, skb, total_len);
- }
- }
- else
- { /* sniffer mode, so just pass whole packet */ };
- /************************/
- /* Now pick up the rest of the fragments if any */
- tmp = 17;
- if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
- prcslink = prcs;
- DEBUG(1,"ray_cs rx_data in fragment loopn");
- do {
- prcslink = ((struct rcs *)(local->sram + CCS_BASE))
- + readb(&prcslink->var.rx_packet.next_frag_rcs_index);
- rx_len = (( readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
- + readb(&prcslink->var.rx_packet.rx_data_length[1]))
- & RX_BUFF_END;
- pkt_addr = (( readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 8)
- + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
- & RX_BUFF_END;
- rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
- } while (tmp-- &&
- readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 0xFF);
- release_frag_chain(local, prcs);
- }
- skb->protocol = eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- local->stats.rx_packets++;
- local->stats.rx_bytes += total_len;
- /* Gather signal strength per address */
- #ifdef WIRELESS_SPY
- /* For the Access Point or the node having started the ad-hoc net
- * note : ad-hoc work only in some specific configurations, but we
- * kludge in ray_get_wireless_stats... */
- if(!memcmp(linksrcaddr, local->bss_id, ETH_ALEN))
- {
- /* Update statistics */
- /*local->wstats.qual.qual = none ? */
- local->wstats.qual.level = siglev;
- /*local->wstats.qual.noise = none ? */
- local->wstats.qual.updated = 0x2;
- }
- /* Now, for the addresses in the spy list */
- {
- int i;
- /* Look all addresses */
- for(i = 0; i < local->spy_number; i++)
- /* If match */
- if(!memcmp(linksrcaddr, local->spy_address[i], ETH_ALEN))
- {
- /* Update statistics */
- /*local->spy_stat[i].qual = none ? */
- local->spy_stat[i].level = siglev;
- /*local->spy_stat[i].noise = none ? */
- local->spy_stat[i].updated = 0x2;
- }
- }
- #endif /* WIRELESS_SPY */
- } /* end rx_data */
- /*===========================================================================*/
- static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
- {
- snaphdr_t *psnap = (snaphdr_t *)(skb->data + RX_MAC_HEADER_LENGTH);
- struct mac_header *pmac = (struct mac_header *)skb->data;
- unsigned short type = *(unsigned short *)psnap->ethertype;
- unsigned int xsap = *(unsigned int *)psnap & 0x00ffffff;
- unsigned int org = (*(unsigned int *)psnap->org) & 0x00ffffff;
- int delta;
- struct ethhdr *peth;
- UCHAR srcaddr[ADDRLEN];
- UCHAR destaddr[ADDRLEN];
- if (pmac->frame_ctl_2 & FC2_FROM_DS) {
- if (pmac->frame_ctl_2 & FC2_TO_DS) { /* AP to AP */
- memcpy(destaddr, pmac->addr_3, ADDRLEN);
- memcpy(srcaddr, ((unsigned char *)pmac->addr_3) + ADDRLEN, ADDRLEN);
- } else { /* AP to terminal */
- memcpy(destaddr, pmac->addr_1, ADDRLEN);
- memcpy(srcaddr, pmac->addr_3, ADDRLEN);
- }
- } else { /* Terminal to AP */
- if (pmac->frame_ctl_2 & FC2_TO_DS) {
- memcpy(destaddr, pmac->addr_3, ADDRLEN);
- memcpy(srcaddr, pmac->addr_2, ADDRLEN);
- } else { /* Adhoc */
- memcpy(destaddr, pmac->addr_1, ADDRLEN);
- memcpy(srcaddr, pmac->addr_2, ADDRLEN);
- }
- }
- #ifdef PCMCIA_DEBUG
- if (pc_debug > 3) {
- int i;
- printk(KERN_DEBUG "skb->data before untranslate");
- for (i=0;i<64;i++)
- printk("%02x ",skb->data[i]);
- printk("n" KERN_DEBUG "type = %08x, xsap = %08x, org = %08xn",
- type,xsap,org);
- printk(KERN_DEBUG "untranslate skb->data = %pn",skb->data);
- }
- #endif
- if ( xsap != SNAP_ID) {
- /* not a snap type so leave it alone */
- DEBUG(3,"ray_cs untranslate NOT SNAP %xn", *(unsigned int *)psnap & 0x00ffffff);
- delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
- peth = (struct ethhdr *)(skb->data + delta);
- peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
- }
- else { /* Its a SNAP */
- if (org == BRIDGE_ENCAP) { /* EtherII and nuke the LLC */
- DEBUG(3,"ray_cs untranslate Bridge encapn");
- delta = RX_MAC_HEADER_LENGTH
- + sizeof(struct snaphdr_t) - ETH_HLEN;
- peth = (struct ethhdr *)(skb->data + delta);
- peth->h_proto = type;
- }
- else {
- if (org == RFC1042_ENCAP) {
- switch (type) {
- case RAY_IPX_TYPE:
- case APPLEARP_TYPE:
- DEBUG(3,"ray_cs untranslate RFC IPX/AARPn");
- delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
- peth = (struct ethhdr *)(skb->data + delta);
- peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
- break;
- default:
- DEBUG(3,"ray_cs untranslate RFC defaultn");
- delta = RX_MAC_HEADER_LENGTH +
- sizeof(struct snaphdr_t) - ETH_HLEN;
- peth = (struct ethhdr *)(skb->data + delta);
- peth->h_proto = type;
- break;
- }
- }
- else {
- printk("ray_cs untranslate very confused by packetn");
- delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
- peth = (struct ethhdr *)(skb->data + delta);
- peth->h_proto = type;
- }
- }
- }
- /* TBD reserve skb_reserve(skb, delta); */
- skb_pull(skb, delta);
- DEBUG(3,"untranslate after skb_pull(%d), skb->data = %pn",delta,skb->data);
- memcpy(peth->h_dest, destaddr, ADDRLEN);
- memcpy(peth->h_source, srcaddr, ADDRLEN);
- #ifdef PCMCIA_DEBUG
- if (pc_debug > 3) {
- int i;
- printk(KERN_DEBUG "skb->data after untranslate:");
- for (i=0;i<64;i++)
- printk("%02x ",skb->data[i]);
- printk("n");
- }
- #endif
- } /* end untranslate */
- /*===========================================================================*/
- /* Copy data from circular receive buffer to PC memory.
- * dest = destination address in PC memory
- * pkt_addr = source address in receive buffer
- * len = length of packet to copy
- */
- static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int length)
- {
- int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
- if (wrap_bytes <= 0)
- {
- memcpy_fromio(dest,local->rmem + pkt_addr,length);
- }
- else /* Packet wrapped in circular buffer */
- {
- memcpy_fromio(dest,local->rmem+pkt_addr,length - wrap_bytes);
- memcpy_fromio(dest + length - wrap_bytes, local->rmem, wrap_bytes);
- }
- return length;
- }
- /*===========================================================================*/
- static void release_frag_chain(ray_dev_t *local, struct rcs* prcs)
- {
- struct rcs *prcslink = prcs;
- int tmp = 17;
- unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
- while (tmp--) {
- writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
- if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
- DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%xn",rcsindex);
- break;
- }
- prcslink = ((struct rcs *)(local->sram + CCS_BASE)) + rcsindex;
- rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
- }
- writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
- }
- /*===========================================================================*/
- static void authenticate(ray_dev_t *local)
- {
- dev_link_t *link = local->finder;
- DEBUG(0,"ray_cs Starting authentication.n");
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs authenticate - device not presentn");
- return;
- }
- del_timer(&local->timer);
- if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
- local->timer.function = &join_net;
- }
- else {
- local->timer.function = &authenticate_timeout;
- }
- local->timer.expires = jiffies + HZ*2;
- local->timer.data = (long)local;
- add_timer(&local->timer);
- local->authentication_state = AWAITING_RESPONSE;
- } /* end authenticate */
- /*===========================================================================*/
- static void rx_authenticate(ray_dev_t *local, struct rcs *prcs,
- unsigned int pkt_addr, int rx_len)
- {
- UCHAR buff[256];
- struct rx_msg *msg = (struct rx_msg *)buff;
-
- del_timer(&local->timer);
- copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
- /* if we are trying to get authenticated */
- if (local->sparm.b4.a_network_type == ADHOC) {
- DEBUG(1,"ray_cs rx_auth var= %02x %02x %02x %02x %02x %02xn", msg->var[0],msg->var[1],msg->var[2],msg->var[3],msg->var[4],msg->var[5]);
- if (msg->var[2] == 1) {
- DEBUG(0,"ray_cs Sending authentication response.n");
- if (!build_auth_frame (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
- local->authentication_state = NEED_TO_AUTH;
- memcpy(local->auth_id, msg->mac.addr_2, ADDRLEN);
- }
- }
- }
- else /* Infrastructure network */
- {
- if (local->authentication_state == AWAITING_RESPONSE) {
- /* Verify authentication sequence #2 and success */
- if (msg->var[2] == 2) {
- if ((msg->var[3] | msg->var[4]) == 0) {
- DEBUG(1,"Authentication successfuln");
- local->card_status = CARD_AUTH_COMPLETE;
- associate(local);
- local->authentication_state = AUTHENTICATED;
- }
- else {
- DEBUG(0,"Authentication refusedn");
- local->card_status = CARD_AUTH_REFUSED;
- join_net((u_long)local);
- local->authentication_state = UNAUTHENTICATED;
- }
- }
- }
- }
- } /* end rx_authenticate */
- /*===========================================================================*/
- static void associate(ray_dev_t *local)
- {
- struct ccs *pccs;
- dev_link_t *link = local->finder;
- struct net_device *dev = link->priv;
- int ccsindex;
- if (!(link->state & DEV_PRESENT)) {
- DEBUG(2,"ray_cs associate - device not presentn");
- return;
- }
- /* If no tx buffers available, return*/
- if ((ccsindex = get_free_ccs(local)) < 0)
- {
- /* TBD should never be here but... what if we are? */
- DEBUG(1,"ray_cs associate - No free ccsn");
- return;
- }
- DEBUG(1,"ray_cs Starting association with access pointn");
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- /* fill in the CCS */
- writeb(CCS_START_ASSOCIATION, &pccs->cmd);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(1,"ray_cs associate failed - ECF not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- del_timer(&local->timer);
- local->timer.expires = jiffies + HZ*2;
- local->timer.data = (long)local;
- local->timer.function = &join_net;
- add_timer(&local->timer);
- local->card_status = CARD_ASSOC_FAILED;
- return;
- }
- if (!sniffer) netif_start_queue(dev);
- } /* end associate */
- /*===========================================================================*/
- static void rx_deauthenticate(ray_dev_t *local, struct rcs *prcs,
- unsigned int pkt_addr, int rx_len)
- {
- /* UCHAR buff[256];
- struct rx_msg *msg = (struct rx_msg *)buff;
- */
- DEBUG(0,"Deauthentication frame receivedn");
- local->authentication_state = UNAUTHENTICATED;
- /* Need to reauthenticate or rejoin depending on reason code */
- /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
- */
- }
- /*===========================================================================*/
- static void clear_interrupt(ray_dev_t *local)
- {
- writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
- }
- /*===========================================================================*/
- #ifdef CONFIG_PROC_FS
- #define MAXDATA (PAGE_SIZE - 80)
- static char *card_status[] = {
- "Card inserted - uninitialized", /* 0 */
- "Card not downloaded", /* 1 */
- "Waiting for download parameters", /* 2 */
- "Card doing acquisition", /* 3 */
- "Acquisition complete", /* 4 */
- "Authentication complete", /* 5 */
- "Association complete", /* 6 */
- "???", "???", "???", "???", /* 7 8 9 10 undefined */
- "Card init error", /* 11 */
- "Download parameters error", /* 12 */
- "???", /* 13 */
- "Acquisition failed", /* 14 */
- "Authentication refused", /* 15 */
- "Association failed" /* 16 */
- };
- static char *nettype[] = {"Adhoc", "Infra "};
- static char *framing[] = {"Encapsulation", "Translation"}
- ;
- /*===========================================================================*/
- static int ray_cs_proc_read(char *buf, char **start, off_t offset, int len)
- {
- /* Print current values which are not available via other means
- * eg ifconfig
- */
- int i;
- dev_link_t *link;
- struct net_device *dev;
- ray_dev_t *local;
- UCHAR *p;
- struct freq_hop_element *pfh;
- UCHAR c[33];
- link = dev_list;
- if (!link)
- return 0;
- dev = (struct net_device *)link->priv;
- if (!dev)
- return 0;
- local = (ray_dev_t *)dev->priv;
- if (!local)
- return 0;
- len = 0;
- len += sprintf(buf + len, "Raylink Wireless LAN driver statusn");
- len += sprintf(buf + len, "%sn", rcsid);
- /* build 4 does not report version, and field is 0x55 after memtest */
- len += sprintf(buf + len, "Firmware version = ");
- if (local->fw_ver == 0x55)
- len += sprintf(buf + len, "4 - Use dump_cis for more detailsn");
- else
- len += sprintf(buf + len, "%2d.%02d.%02dn",
- local->fw_ver, local->fw_bld, local->fw_var);
- for (i=0; i<32; i++) c[i] = local->sparm.b5.a_current_ess_id[i];
- c[32] = 0;
- len += sprintf(buf + len, "%s network ESSID = "%s"n",
- nettype[local->sparm.b5.a_network_type], c);
- p = local->bss_id;
- len += sprintf(buf + len,
- "BSSID = %02x:%02x:%02x:%02x:%02x:%02xn",
- p[0],p[1],p[2],p[3],p[4],p[5]);
- len += sprintf(buf + len, "Country code = %dn",
- local->sparm.b5.a_curr_country_code);
- i = local->card_status;
- if (i < 0) i = 10;
- if (i > 16) i = 10;
- len += sprintf(buf + len, "Card status = %sn", card_status[i]);
- len += sprintf(buf + len, "Framing mode = %sn",framing[translate]);
- len += sprintf(buf + len, "Last pkt signal lvl = %dn", local->last_rsl);
- if (local->beacon_rxed) {
- /* Pull some fields out of last beacon received */
- len += sprintf(buf + len, "Beacon Interval = %d Kusn",
- local->last_bcn.beacon_intvl[0]
- + 256 * local->last_bcn.beacon_intvl[1]);
-
- p = local->last_bcn.elements;
- if (p[0] == C_ESSID_ELEMENT_ID) p += p[1] + 2;
- else {
- len += sprintf(buf + len, "Parse beacon failed at essid element id = %dn",p[0]);
- return len;
- }
- if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
- len += sprintf(buf + len, "Supported rate codes = ");
- for (i=2; i<p[1] + 2; i++)
- len += sprintf(buf + len, "0x%02x ", p[i]);
- len += sprintf(buf + len, "n");
- p += p[1] + 2;
- }
- else {
- len += sprintf(buf + len, "Parse beacon failed at rates elementn");
- return len;
- }
- if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
- pfh = (struct freq_hop_element *)p;
- len += sprintf(buf + len, "Hop dwell = %d Kusn",
- pfh->dwell_time[0] + 256 * pfh->dwell_time[1]);
- len += sprintf(buf + len, "Hop set = %d n", pfh->hop_set);
- len += sprintf(buf + len, "Hop pattern = %d n", pfh->hop_pattern);
- len += sprintf(buf + len, "Hop index = %d n", pfh->hop_index);
- p += p[1] + 2;
- }
- else {
- len += sprintf(buf + len, "Parse beacon failed at FH param elementn");
- return len;
- }
- } else {
- len += sprintf(buf + len, "No beacons receivedn");
- }
- return len;
- }
- #endif
- /*===========================================================================*/
- static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
- {
- int addr;
- struct ccs *pccs;
- struct tx_msg *ptx;
- int ccsindex;
- /* If no tx buffers available, return */
- if ((ccsindex = get_free_tx_ccs(local)) < 0)
- {
- DEBUG(1,"ray_cs send authenticate - No free tx ccsn");
- return -1;
- }
- pccs = ((struct ccs *)(local->sram + CCS_BASE)) + ccsindex;
- /* Address in card space */
- addr = TX_BUF_BASE + (ccsindex << 11);
- /* fill in the CCS */
- writeb(CCS_TX_REQUEST, &pccs->cmd);
- writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
- writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
- writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
- writeb(TX_AUTHENTICATE_LENGTH_LSB,pccs->var.tx_request.tx_data_length + 1);
- writeb(0, &pccs->var.tx_request.pow_sav_mode);
- ptx = (struct tx_msg *)(local->sram + addr);
- /* fill in the mac header */
- writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
- writeb(0, &ptx->mac.frame_ctl_2);
- memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
- memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
- memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
- /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
- memset_io(ptx->var, 0, 6);
- writeb(auth_type & 0xff, ptx->var + 2);
- /* Interrupt the firmware to process the command */
- if (interrupt_ecf(local, ccsindex)) {
- DEBUG(1,"ray_cs send authentication request failed - ECF not ready for intrn");
- writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
- return -1;
- }
- return 0;
- } /* End build_auth_frame */
- /*===========================================================================*/
- #ifdef CONFIG_PROC_FS
- static void raycs_write(const char *name, write_proc_t *w, void *data)
- {
- struct proc_dir_entry * entry = create_proc_entry(name, S_IFREG | S_IWUSR, NULL);
- if (entry) {
- entry->write_proc = w;
- entry->data = data;
- }
- }
- static int write_essid(struct file *file, const char *buffer, unsigned long count, void *data)
- {
- static char proc_essid[33];
- int len = count;
- if (len > 32)
- len = 32;
- memset(proc_essid, 0, 33);
- if (copy_from_user(proc_essid, buffer, len))
- return -EFAULT;
- essid = proc_essid;
- return count;
- }
- static int write_int(struct file *file, const char *buffer, unsigned long count, void *data)
- {
- static char proc_number[10];
- char *p;
- int nr, len;
- if (!count)
- return 0;
- if (count > 9)
- return -EINVAL;
- if (copy_from_user(proc_number, buffer, count))
- return -EFAULT;
- p = proc_number;
- nr = 0;
- len = count;
- do {
- unsigned int c = *p - '0';
- if (c > 9)
- return -EINVAL;
- nr = nr*10 + c;
- p++;
- } while (--len);
- *(int *)data = nr;
- return count;
- }
- #endif
- static int __init init_ray_cs(void)
- {
- int rc;
-
- DEBUG(1, "%sn", rcsid);
- rc = register_pcmcia_driver(&dev_info, &ray_attach, &ray_detach);
- DEBUG(1, "raylink init_module register_pcmcia_driver returns 0x%xn",rc);
- #ifdef CONFIG_PROC_FS
- proc_mkdir("driver/ray_cs", 0);
- create_proc_info_entry("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_read);
- raycs_write("driver/ray_cs/essid", write_essid, NULL);
- raycs_write("driver/ray_cs/net_type", write_int, &net_type);
- raycs_write("driver/ray_cs/translate", write_int, &translate);
- #endif
- if (translate != 0) translate = 1;
- return 0;
- } /* init_ray_cs */
- /*===========================================================================*/
- static void __exit exit_ray_cs(void)
- {
- DEBUG(0, "ray_cs: cleanup_modulen");
- #ifdef CONFIG_PROC_FS
- remove_proc_entry("ray_cs", proc_root_driver);
- #endif
- unregister_pcmcia_driver(&dev_info);
- while (dev_list != NULL)
- ray_detach(dev_list);
- #ifdef CONFIG_PROC_FS
- remove_proc_entry("driver/ray_cs/ray_cs", NULL);
- remove_proc_entry("driver/ray_cs/essid", NULL);
- remove_proc_entry("driver/ray_cs/net_type", NULL);
- remove_proc_entry("driver/ray_cs/translate", NULL);
- remove_proc_entry("driver/ray_cs", NULL);
- #endif
- } /* exit_ray_cs */
- module_init(init_ray_cs);
- module_exit(exit_ray_cs);
- /*===========================================================================*/