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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/wireless/ray_cs.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/wireless/ray_cs.c')
-rw-r--r--drivers/net/wireless/ray_cs.c2957
1 files changed, 2957 insertions, 0 deletions
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
new file mode 100644
index 000000000000..6e5bda56b8f8
--- /dev/null
+++ b/drivers/net/wireless/ray_cs.c
@@ -0,0 +1,2957 @@
+/*=============================================================================
+ *
+ * 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
+ *
+ * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
+ * - Audit copy_to_user in ioctl(SIOCGIWESSID)
+ *
+=============================================================================*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.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 <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 <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>
+
+#include <linux/wireless.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.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 */
+
+#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_param(pc_debug, int, 0);
+/* #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(dev_link_t *link);
+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 struct ethtool_ops netdev_ethtool_ops;
+
+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 __iomem *ptx,
+ unsigned char *data, int len);
+static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *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 irqreturn_t 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 __iomem *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 __iomem *prcs);
+static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
+static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
+ unsigned int pkt_addr, int rx_len);
+static void rx_data(struct net_device *dev, struct rcs __iomem *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); */
+
+/*===========================================================================*/
+/* Parameters that can be set with 'insmod' */
+
+/* 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_param(net_type, int, 0);
+module_param(hop_dwell, int, 0);
+module_param(beacon_period, int, 0);
+module_param(psm, int, 0);
+module_param(essid, charp, 0);
+module_param(translate, int, 0);
+module_param(country, int, 0);
+module_param(sniffer, int, 0);
+module_param(bc, int, 0);
+module_param(phy_addr, charp, 0);
+module_param(ray_mem_speed, int, 0);
+
+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>";
+
+/*=============================================================================
+ 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");
+
+ /* 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 = alloc_etherdev(sizeof(ray_dev_t));
+
+ if (!dev)
+ goto fail_alloc_dev;
+
+ local = dev->priv;
+
+ memset(link, 0, sizeof(struct dev_link_t));
+
+ /* 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_LEVEL_ID;
+ 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;
+
+ 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 = %p\n",
+ 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;
+ SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
+#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");
+ SET_MODULE_OWNER(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.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 pcmcia_register_client(...)\n");
+
+ init_timer(&local->timer);
+
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if (ret != 0) {
+ printk("ray_cs ray_attach RegisterClient unhappy - detaching\n");
+ cs_error(link->handle, RegisterClient, ret);
+ ray_detach(link);
+ return NULL;
+ }
+ DEBUG(2,"ray_cs ray_attach ending\n");
+ return link;
+
+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().
+ */
+ if (link->state & DEV_CONFIG)
+ ray_release(link);
+
+ /* 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);
+ free_netdev(dev);
+ }
+ kfree(link);
+ DEBUG(2,"ray_cs ray_detach ending\n");
+} /* 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, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+#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(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = MAX_TUPLE_SIZE;
+ tuple.TupleOffset = 0;
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+ CS_CHECK(ParseTuple, 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(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = MAX_TUPLE_SIZE;
+ tuple.TupleOffset = 2;
+ CS_CHECK(GetTupleData, 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: %s\n",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(RequestIRQ, 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(RequestConfiguration, 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(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
+ mem.CardOffset = 0x0000; mem.Page = 0;
+ CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
+ local->sram = 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(RequestWindow, pcmcia_request_window(&link->handle, &req, &local->rmem_handle));
+ mem.CardOffset = 0x8000; mem.Page = 0;
+ CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->rmem_handle, &mem));
+ local->rmem = 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(RequestWindow, pcmcia_request_window(&link->handle, &req, &local->amem_handle));
+ mem.CardOffset = 0x0000; mem.Page = 0;
+ CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->amem_handle, &mem));
+ local->amem = ioremap(req.Base,req.Size);
+
+ DEBUG(3,"ray_config sram=%p\n",local->sram);
+ DEBUG(3,"ray_config rmem=%p\n",local->rmem);
+ DEBUG(3,"ray_config amem=%p\n",local->amem);
+ if (ray_init(dev) < 0) {
+ ray_release(link);
+ return;
+ }
+
+ SET_NETDEV_DEV(dev, &handle_to_dev(handle));
+ i = register_netdev(dev);
+ if (i != 0) {
+ printk("ray_config register_netdev() failed\n");
+ ray_release(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(link);
+} /* ray_config */
+
+static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
+{
+ return dev->sram + CCS_BASE;
+}
+
+static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
+{
+ /*
+ * This looks nonsensical, since there is a separate
+ * RCS_BASE. But the difference between a "struct rcs"
+ * and a "struct ccs" ends up being in the _index_ off
+ * the base, so the base pointer is the same for both
+ * ccs/rcs.
+ */
+ return dev->sram + CCS_BASE;
+}
+
+/*===========================================================================*/
+static int ray_init(struct net_device *dev)
+{
+ int i;
+ UCHAR *p;
+ struct ccs __iomem *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 present\n");
+ 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 = %2x\n",
+ 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%02x\n", local->tib_length);
+ /* Initialize CCS's to buffer free state */
+ pccs = ccs_base(local);
+ 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 ending\n");
+ 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 __iomem *pccs;
+ dev_link_t *link = local->finder;
+
+ DEBUG(1,"dl_startup_params entered\n");
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs dl_startup_params - device not present\n");
+ 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 = ccs_base(local) + ccsindex;
+ writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
+ DEBUG(2,"dl_startup_params start ccsindex = %d\n", 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 intr\n");
+ 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_startup\n");
+ 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 __iomem *pccs = ccs_base(local) + 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 present\n");
+ 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 = %d\n",
+ 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 __iomem *pccs;
+ int ccsindex;
+ dev_link_t *link = local->finder;
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs start_net - device not present\n");
+ return;
+ }
+ /* Fill in the CCS fields for the ECF */
+ if ((ccsindex = get_free_ccs(local)) < 0) return;
+ pccs = ccs_base(local) + 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 intr\n");
+ 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 __iomem *pccs;
+ int ccsindex;
+ dev_link_t *link = local->finder;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs join_net - device not present\n");
+ return;
+ }
+ /* Fill in the CCS fields for the ECF */
+ if ((ccsindex = get_free_ccs(local)) < 0) return;
+ pccs = ccs_base(local) + 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 intr\n");
+ 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(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ ray_dev_t *local = dev->priv;
+ int i;
+
+ DEBUG(1, "ray_release(0x%p)\n", link);
+
+ 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 = %x\n",i);
+ i = pcmcia_release_window(local->amem_handle);
+ if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->amem) ret = %x\n",i);
+ i = pcmcia_release_window(local->rmem_handle);
+ if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->rmem) ret = %x\n",i);
+ i = pcmcia_release_configuration(link->handle);
+ if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseConfiguration ret = %x\n",i);
+ i = pcmcia_release_irq(link->handle, &link->irq);
+ if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseIRQ ret = %x\n",i);
+
+ DEBUG(2,"ray_release ending\n");
+}
+
+/*=============================================================================
+ 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) {
+ ray_release(link);
+ 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 ending\n");
+} /* 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 present\n");
+ 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%x\n",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 = %d\n",
+ 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 ending\n");
+ 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 present\n");
+ 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 = skb->len;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_dev_start_xmit - device not present\n");
+ 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;
+ }
+ }
+
+ if (length < ETH_ZLEN)
+ {
+ skb = skb_padto(skb, ETH_ZLEN);
+ if (skb == NULL)
+ return 0;
+ length = 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 __iomem *pccs;
+ int ccsindex;
+ int offset;
+ struct tx_msg __iomem *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 bytes\n",len);
+ return XMIT_MSG_BAD;
+ }
+ switch (ccsindex = get_free_tx_ccs(local)) {
+ case ECCSBUSY:
+ DEBUG(2,"ray_hw_xmit tx_ccs table busy\n");
+ case ECCSFULL:
+ DEBUG(2,"ray_hw_xmit No free tx ccs\n");
+ 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 = 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 = ccs_base(local) + 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%x\n",\
+ 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 intr\n");
+/* 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 __iomem *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 II\n");
+ /* Copy LLC header to card buffer */
+ memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
+ memcpy_toio( ((void __iomem *)&ptx->var) + sizeof(eth2_llc), (UCHAR *)&proto, 2);
+ if ((proto == 0xf380) || (proto == 0x3781)) {
+ /* This is the selective translation table, only 2 entries */
+ writeb(0xf8, &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
+ }
+ /* Copy body of ethernet packet without ethernet header */
+ memcpy_toio((void __iomem *)&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 802\n");
+ if (proto == 0xffff) { /* evil netware IPX 802.3 without LLC */
+ DEBUG(3,"ray_cs translate_frame evil IPX\n");
+ memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
+ return 0 - ETH_HLEN;
+ }
+ memcpy_toio(&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 __iomem *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 void netdev_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strcpy(info->driver, "ray_cs");
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+ .get_drvinfo = netdev_get_drvinfo,
+};
+
+/*====================================================================*/
+
+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 */
+#ifdef WIRELESS_SPY
+ struct sockaddr address[IW_MAX_SPY];
+#endif /* WIRELESS_SPY */
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_dev_ioctl - device not present\n");
+ return -1;
+ }
+ DEBUG(2,"ray_cs IOCTL dev=%p, ifr=%p, cmd = 0x%x\n",dev,ifr,cmd);
+ /* Validate the command */
+ switch (cmd)
+ {
+#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] = '\0';
+
+ /* Push it out ! */
+ wrq->u.data.length = strlen(essid) + 1;
+ wrq->u.data.flags = 1; /* active */
+ if (copy_to_user(wrq->u.data.pointer, essid, sizeof(essid)))
+ err = -EFAULT;
+ }
+ 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] = '\0';
+
+ /* 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)
+ {
+ 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:%02X\n",
+ 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))
+ {
+ 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%x\n", 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 __iomem *p = 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;
+
+ 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)) {
+ 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%x\n",i);
+ return -1;
+ }
+ }
+
+ if (sniffer) netif_stop_queue(dev);
+ else netif_start_queue(dev);
+
+ DEBUG(2,"ray_open ending\n");
+ 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);
+
+ /* 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 */
+
+ return 0;
+} /* end ray_dev_close */
+/*===========================================================================*/
+static void ray_reset(struct net_device *dev) {
+ DEBUG(1,"ray_reset entered\n");
+ 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 present\n");
+ return -1;
+ }
+ DEBUG(2,"interrupt_ecf(local=%p, ccs = 0x%x\n",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 interrupt\n");
+ 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 __iomem *pccs = ccs_base(local);
+ dev_link_t *link = local->finder;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs get_free_tx_ccs - device not present\n");
+ return ECARDGONE;
+ }
+
+ if (test_and_set_bit(0,&local->tx_ccs_lock)) {
+ DEBUG(1,"ray_cs tx_ccs_lock busy\n");
+ 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 card\n");
+ 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 __iomem *pccs = ccs_base(local);
+ dev_link_t *link = local->finder;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs get_free_ccs - device not present\n");
+ return ECARDGONE;
+ }
+ if (test_and_set_bit(0,&local->ccs_lock)) {
+ DEBUG(1,"ray_cs ccs_lock busy\n");
+ 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 card\n");
+ 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"
+ " - timeout\n");
+ 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 __iomem *p = local->sram + STATUS_BASE;
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_cs net_device_stats - device not present\n");
+ 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 __iomem *pccs;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_update_parm - device not present\n");
+ return;
+ }
+
+ if ((ccsindex = get_free_ccs(local)) < 0)
+ {
+ DEBUG(0,"ray_update_parm - No free ccs\n");
+ return;
+ }
+ pccs = ccs_base(local) + 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 intr\n");
+ 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 __iomem *pccs;
+ int i = 0;
+ ray_dev_t *local = (ray_dev_t *)dev->priv;
+ dev_link_t *link = local->finder;
+ void __iomem *p = local->sram + HOST_TO_ECF_BASE;
+
+ if (!(link->state & DEV_PRESENT)) {
+ DEBUG(2,"ray_update_multi_list - device not present\n");
+ 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 ccs\n");
+ return;
+ }
+ pccs = ccs_base(local) + 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%02x\n",dmi->dmi_addr[0],dmi->dmi_addr[1],dmi->dmi_addr[2],dmi->dmi_addr[3],dmi->dmi_addr[4],dmi->dmi_addr[5]);
+ 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 list\n", 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 intr\n");
+ 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 on\n");
+ 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 off\n");
+ 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 irqreturn_t 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 __iomem *pccs;
+ struct rcs __iomem *prcs;
+ UCHAR rcsindex;
+ UCHAR tmp;
+ UCHAR cmd;
+ UCHAR status;
+
+ if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
+ return IRQ_NONE;
+
+ DEBUG(4,"ray_cs: interrupt for *dev=%p\n",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 IRQ_NONE;
+ }
+ rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
+
+ if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS))
+ {
+ DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%x\n",rcsindex);
+ clear_interrupt(local);
+ return IRQ_HANDLED;
+ }
+ if (rcsindex < NUMBER_OF_CCS) /* If it's a returned CCS */
+ {
+ pccs = ccs_base(local) + 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 OK\n");
+ }
+ else {
+ DEBUG(1,"ray_cs interrupt download_startup_parameters fail\n");
+ }
+ break;
+ case CCS_UPDATE_PARAMS:
+ DEBUG(1,"ray_cs interrupt update params done\n");
+ if (status != CCS_COMMAND_COMPLETE) {
+ tmp = readb(&pccs->var.update_param.failure_cause);
+ DEBUG(0,"ray_cs interrupt update params failed - reason %d\n",tmp);
+ }
+ break;
+ case CCS_REPORT_PARAMS:
+ DEBUG(1,"ray_cs interrupt report params done\n");
+ break;
+ case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
+ DEBUG(1,"ray_cs interrupt CCS Update Multicast List done\n");
+ break;
+ case CCS_UPDATE_POWER_SAVINGS_MODE:
+ DEBUG(1,"ray_cs interrupt update power save mode done\n");
+ 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\" started\n",\
+ local->sparm.b4.a_current_ess_id);
+ }
+ else {
+ DEBUG(0,"ray_cs interrupt network \"%s\" joined\n",\
+ 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 failed\n",\
+ local->sparm.b4.a_current_ess_id);
+ local->timer.function = &start_net;
+ }
+ else {
+ DEBUG(0,"ray_cs interrupt network \"%s\" join failed\n",\
+ 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 successful\n");
+ }
+ 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 complete\n");
+ }
+ else {
+ DEBUG(1,"ray_cs interrupt tx request failed\n");
+ }
+ if (!sniffer) netif_start_queue(dev);
+ netif_wake_queue(dev);
+ break;
+ case CCS_TEST_MEMORY:
+ DEBUG(1,"ray_cs interrupt mem test done\n");
+ break;
+ case CCS_SHUTDOWN:
+ DEBUG(1,"ray_cs interrupt Unexpected CCS returned - Shutdown\n");
+ break;
+ case CCS_DUMP_MEMORY:
+ DEBUG(1,"ray_cs interrupt dump memory done\n");
+ break;
+ case CCS_START_TIMER:
+ DEBUG(2,"ray_cs interrupt DING - raylink timer expired\n");
+ break;
+ default:
+ DEBUG(1,"ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",\
+ rcsindex, cmd);
+ }
+ writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
+ }
+ else /* It's an RCS */
+ {
+ prcs = rcs_base(local) + 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 complete\n");
+ 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%02x\n",\
+ 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 initiated\n");
+ netif_stop_queue(dev);
+ local->card_status = CARD_DOING_ACQ;
+ break;
+ case JAPAN_CALL_SIGN_RXD:
+ DEBUG(1,"ray_cs interrupt japan call sign rx\n");
+ break;
+ default:
+ DEBUG(1,"ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",\
+ rcsindex, (unsigned int) readb(&prcs->interrupt_id));
+ break;
+ }
+ writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
+ }
+ clear_interrupt(local);
+ return IRQ_HANDLED;
+} /* ray_interrupt */
+/*===========================================================================*/
+static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs)
+{
+ int rx_len;
+ unsigned int pkt_addr;
+ void __iomem *pmsg;
+ DEBUG(4,"ray_rx process rx packet\n");
+
+ /* 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 type\n");
+ rx_data(dev, prcs, pkt_addr, rx_len);
+ break;
+ case AUTHENTIC_TYPE:
+ DEBUG(4,"ray_rx authentic type\n");
+ 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 type\n");
+ 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 msg\n");
+ break;
+ case BEACON_TYPE:
+ DEBUG(4,"ray_rx beacon type\n");
+ 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 %2x\n", (unsigned int) readb(pmsg));
+ break;
+ }
+
+} /* end ray_rx */
+/*===========================================================================*/
+static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, unsigned int pkt_addr,
+ int rx_len)
+{
+ struct sk_buff *skb = NULL;
+ struct rcs __iomem *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 packet\n");
+ /* 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 fragment\n");
+ 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 = rcs_base(local)
+ + readb(&prcslink->link_field);
+ } while (1);
+
+ if (tmp < 0)
+ {
+ DEBUG(0,"ray_cs rx_data fragment lengths don't add up\n");
+ 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 skb\n");
+ 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 = %x\n",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 loop\n");
+ do {
+ prcslink = rcs_base(local)
+ + 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 = %08x\n",
+ type,xsap,org);
+ printk(KERN_DEBUG "untranslate skb->data = %p\n",skb->data);
+ }
+#endif
+
+ if ( xsap != SNAP_ID) {
+ /* not a snap type so leave it alone */
+ DEBUG(3,"ray_cs untranslate NOT SNAP %x\n", *(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 encap\n");
+ 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/AARP\n");
+ 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 default\n");
+ 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 packet\n");
+ 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 = %p\n",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 __iomem * prcs)
+{
+ struct rcs __iomem *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%x\n",rcsindex);
+ break;
+ }
+ prcslink = rcs_base(local) + 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 present\n");
+ 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 __iomem *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 %02x\n", 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 successful\n");
+ local->card_status = CARD_AUTH_COMPLETE;
+ associate(local);
+ local->authentication_state = AUTHENTICATED;
+ }
+ else {
+ DEBUG(0,"Authentication refused\n");
+ 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 __iomem *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 present\n");
+ 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 ccs\n");
+ return;
+ }
+ DEBUG(1,"ray_cs Starting association with access point\n");
+ pccs = ccs_base(local) + 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 intr\n");
+ 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 __iomem *prcs,
+ unsigned int pkt_addr, int rx_len)
+{
+/* UCHAR buff[256];
+ struct rx_msg *msg = (struct rx_msg *)buff;
+*/
+ DEBUG(0,"Deauthentication frame received\n");
+ 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 status\n");
+ len += sprintf(buf + len, "%s\n", 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 details\n");
+ else
+ len += sprintf(buf + len, "%2d.%02d.%02d\n",
+ 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:%02x\n",
+ p[0],p[1],p[2],p[3],p[4],p[5]);
+
+ len += sprintf(buf + len, "Country code = %d\n",
+ 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 = %s\n", card_status[i]);
+
+ len += sprintf(buf + len, "Framing mode = %s\n",framing[translate]);
+
+ len += sprintf(buf + len, "Last pkt signal lvl = %d\n", local->last_rsl);
+
+ if (local->beacon_rxed) {
+ /* Pull some fields out of last beacon received */
+ len += sprintf(buf + len, "Beacon Interval = %d Kus\n",
+ 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 = %d\n",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 element\n");
+ return len;
+ }
+
+ if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
+ pfh = (struct freq_hop_element *)p;
+ len += sprintf(buf + len, "Hop dwell = %d Kus\n",
+ 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 element\n");
+ return len;
+ }
+ } else {
+ len += sprintf(buf + len, "No beacons received\n");
+ }
+ return len;
+}
+
+#endif
+/*===========================================================================*/
+static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
+{
+ int addr;
+ struct ccs __iomem *pccs;
+ struct tx_msg __iomem *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 ccs\n");
+ return -1;
+ }
+
+ pccs = ccs_base(local) + 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 = 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 intr\n");
+ 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 __user *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 __user *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 struct pcmcia_driver ray_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "ray_cs",
+ },
+ .attach = ray_attach,
+ .detach = ray_detach,
+};
+
+static int __init init_ray_cs(void)
+{
+ int rc;
+
+ DEBUG(1, "%s\n", rcsid);
+ rc = pcmcia_register_driver(&ray_driver);
+ DEBUG(1, "raylink init_module register_pcmcia_driver returns 0x%x\n",rc);
+
+#ifdef CONFIG_PROC_FS
+ proc_mkdir("driver/ray_cs", NULL);
+
+ 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_module\n");
+
+#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
+
+ pcmcia_unregister_driver(&ray_driver);
+ BUG_ON(dev_list != NULL);
+} /* exit_ray_cs */
+
+module_init(init_ray_cs);
+module_exit(exit_ray_cs);
+
+/*===========================================================================*/
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-30 22:34:42 +0000