diff options
Diffstat (limited to 'drivers/net/wireless/legacy/ray_cs.c')
| -rw-r--r-- | drivers/net/wireless/legacy/ray_cs.c | 2819 |
1 files changed, 2819 insertions, 0 deletions
diff --git a/drivers/net/wireless/legacy/ray_cs.c b/drivers/net/wireless/legacy/ray_cs.c new file mode 100644 index 000000000000..1f57a0055bbd --- /dev/null +++ b/drivers/net/wireless/legacy/ray_cs.c @@ -0,0 +1,2819 @@ +// SPDX-License-Identifier: GPL-2.0-only +/*============================================================================= + * + * 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) + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/proc_fs.h> +#include <linux/ptrace.h> +#include <linux/seq_file.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/ieee80211.h> + +#include <pcmcia/cistpl.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ds.h> + +#include <linux/wireless.h> +#include <net/iw_handler.h> + +#include <asm/io.h> +#include <asm/byteorder.h> +#include <linux/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 u_char mac_addr[ETH_ALEN]; /* Hardware address */ + +#include "rayctl.h" +#include "ray_cs.h" + + +/** Prototypes based on PCMCIA skeleton driver *******************************/ +static int ray_config(struct pcmcia_device *link); +static void ray_release(struct pcmcia_device *link); +static void ray_detach(struct pcmcia_device *p_dev); + +/***** 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_open(struct net_device *dev); +static netdev_tx_t 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); +static iw_stats *ray_get_wireless_stats(struct net_device *dev); +static const struct iw_handler_def ray_handler_def; + +/***** Prototypes for raylink functions **************************************/ +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(struct timer_list *t); +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(struct timer_list *t); + +/* Prototypes for interrpt time functions **********************************/ +static irqreturn_t ray_interrupt(int reg, void *dev_id); +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(struct timer_list *t); +static void start_net(struct timer_list *t); + +/*===========================================================================*/ +/* 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 bool translate = true; + +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; + +static unsigned int ray_mem_speed = 500; + +/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ +static struct pcmcia_device *this_device = NULL; + +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, bool, 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 const 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 const 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 */ + 0, /* rx/tx delay */ + 0, 0, 0, 0, 0, 0, /* current BSS id */ + 0 /* hop set */ +}; + +/*===========================================================================*/ +static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; + +static const 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 const char rcsid[] = + "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; + +static const struct net_device_ops ray_netdev_ops = { + .ndo_init = ray_dev_init, + .ndo_open = ray_open, + .ndo_stop = ray_dev_close, + .ndo_start_xmit = ray_dev_start_xmit, + .ndo_set_config = ray_dev_config, + .ndo_get_stats = ray_get_stats, + .ndo_set_rx_mode = set_multicast_list, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +static int ray_probe(struct pcmcia_device *p_dev) +{ + ray_dev_t *local; + struct net_device *dev; + + dev_dbg(&p_dev->dev, "ray_attach()\n"); + + /* Allocate space for private device-specific data */ + dev = alloc_etherdev(sizeof(ray_dev_t)); + if (!dev) + goto fail_alloc_dev; + + local = netdev_priv(dev); + local->finder = p_dev; + + /* The io structure describes IO port mapping. None used here */ + p_dev->resource[0]->end = 0; + p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; + + /* General socket configuration */ + p_dev->config_flags |= CONF_ENABLE_IRQ; + p_dev->config_index = 1; + + p_dev->priv = dev; + + local->finder = p_dev; + local->card_status = CARD_INSERTED; + local->authentication_state = UNAUTHENTICATED; + local->num_multi = 0; + dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", + p_dev, dev, local, &ray_interrupt); + + /* Raylink entries in the device structure */ + dev->netdev_ops = &ray_netdev_ops; + dev->wireless_handlers = &ray_handler_def; +#ifdef WIRELESS_SPY + local->wireless_data.spy_data = &local->spy_data; + dev->wireless_data = &local->wireless_data; +#endif /* WIRELESS_SPY */ + + + dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); + netif_stop_queue(dev); + + timer_setup(&local->timer, NULL, 0); + + this_device = p_dev; + return ray_config(p_dev); + +fail_alloc_dev: + return -ENOMEM; +} /* ray_attach */ + +static void ray_detach(struct pcmcia_device *link) +{ + struct net_device *dev; + ray_dev_t *local; + + dev_dbg(&link->dev, "ray_detach\n"); + + this_device = NULL; + dev = link->priv; + + ray_release(link); + + local = netdev_priv(dev); + del_timer_sync(&local->timer); + + if (link->priv) { + unregister_netdev(dev); + free_netdev(dev); + } + dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); +} /* ray_detach */ + +#define MAX_TUPLE_SIZE 128 +static int ray_config(struct pcmcia_device *link) +{ + int ret = 0; + int i; + struct net_device *dev = (struct net_device *)link->priv; + ray_dev_t *local = netdev_priv(dev); + + dev_dbg(&link->dev, "ray_config\n"); + + /* Determine card type and firmware version */ + printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", + link->prod_id[0] ? link->prod_id[0] : " ", + link->prod_id[1] ? link->prod_id[1] : " ", + link->prod_id[2] ? link->prod_id[2] : " ", + link->prod_id[3] ? link->prod_id[3] : " "); + + /* Now allocate an interrupt line. Note that this does not + actually assign a handler to the interrupt. + */ + ret = pcmcia_request_irq(link, ray_interrupt); + if (ret) + goto failed; + dev->irq = link->irq; + + ret = pcmcia_enable_device(link); + if (ret) + goto failed; + +/*** Set up 32k window for shared memory (transmit and control) ************/ + link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; + link->resource[2]->start = 0; + link->resource[2]->end = 0x8000; + ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); + if (ret) + goto failed; + ret = pcmcia_map_mem_page(link, link->resource[2], 0); + if (ret) + goto failed; + local->sram = ioremap(link->resource[2]->start, + resource_size(link->resource[2])); + if (!local->sram) + goto failed; + +/*** Set up 16k window for shared memory (receive buffer) ***************/ + link->resource[3]->flags |= + WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; + link->resource[3]->start = 0; + link->resource[3]->end = 0x4000; + ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); + if (ret) + goto failed; + ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); + if (ret) + goto failed; + local->rmem = ioremap(link->resource[3]->start, + resource_size(link->resource[3])); + if (!local->rmem) + goto failed; + +/*** Set up window for attribute memory ***********************************/ + link->resource[4]->flags |= + WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; + link->resource[4]->start = 0; + link->resource[4]->end = 0x1000; + ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); + if (ret) + goto failed; + ret = pcmcia_map_mem_page(link, link->resource[4], 0); + if (ret) + goto failed; + local->amem = ioremap(link->resource[4]->start, + resource_size(link->resource[4])); + if (!local->amem) + goto failed; + + dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); + dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); + dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); + if (ray_init(dev) < 0) { + ray_release(link); + return -ENODEV; + } + + SET_NETDEV_DEV(dev, &link->dev); + i = register_netdev(dev); + if (i != 0) { + printk("ray_config register_netdev() failed\n"); + ray_release(link); + return i; + } + + printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", + dev->name, dev->irq, dev->dev_addr); + + return 0; + +failed: + ray_release(link); + return -ENODEV; +} /* 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; + struct ccs __iomem *pccs; + ray_dev_t *local = netdev_priv(dev); + struct pcmcia_device *link = local->finder; + dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "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]; + dev_dbg(&link->dev, "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; + dev_dbg(&link->dev, "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)) { + memcpy(&local->sparm.b4.a_mac_addr, + &local->startup_res.station_addr, ADDRLEN); + } + + clear_interrupt(local); /* Clear any interrupt from the card */ + local->card_status = CARD_AWAITING_PARAM; + dev_dbg(&link->dev, "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 = netdev_priv(dev); + struct ccs __iomem *pccs; + struct pcmcia_device *link = local->finder; + + dev_dbg(&link->dev, "dl_startup_params entered\n"); + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "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); + dev_dbg(&link->dev, "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.function = verify_dl_startup; + add_timer(&local->timer); + dev_dbg(&link->dev, + "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(&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(struct timer_list *t) +{ + ray_dev_t *local = from_timer(local, t, timer); + struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; + UCHAR status; + struct pcmcia_device *link = local->finder; + + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); + return; + } +#if 0 + { + 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(&local->timer); + else + join_net(&local->timer); +} /* end verify_dl_startup */ + +/*===========================================================================*/ +/* Command card to start a network */ +static void start_net(struct timer_list *t) +{ + ray_dev_t *local = from_timer(local, t, timer); + struct ccs __iomem *pccs; + int ccsindex; + struct pcmcia_device *link = local->finder; + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "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)) { + dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); + writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); + return; + } + local->card_status = CARD_DOING_ACQ; +} /* end start_net */ + +/*===========================================================================*/ +/* Command card to join a network */ +static void join_net(struct timer_list *t) +{ + ray_dev_t *local = from_timer(local, t, timer); + + struct ccs __iomem *pccs; + int ccsindex; + struct pcmcia_device *link = local->finder; + + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "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)) { + dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); + writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); + return; + } + local->card_status = CARD_DOING_ACQ; +} + + +static void ray_release(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + ray_dev_t *local = netdev_priv(dev); + + dev_dbg(&link->dev, "ray_release\n"); + + del_timer(&local->timer); + + iounmap(local->sram); + iounmap(local->rmem); + iounmap(local->amem); + pcmcia_disable_device(link); + + dev_dbg(&link->dev, "ray_release ending\n"); +} + +static int ray_suspend(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) + netif_device_detach(dev); + + return 0; +} + +static int ray_resume(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) { + ray_reset(dev); + netif_device_attach(dev); + } + + return 0; +} + +/*===========================================================================*/ +static int ray_dev_init(struct net_device *dev) +{ +#ifdef RAY_IMMEDIATE_INIT + int i; +#endif /* RAY_IMMEDIATE_INIT */ + ray_dev_t *local = netdev_priv(dev); + struct pcmcia_device *link = local->finder; + + dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "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 */ + dev_dbg(&link->dev, + "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 */ + eth_hw_addr_set(dev, local->sparm.b4.a_mac_addr); + eth_broadcast_addr(dev->broadcast); + + dev_dbg(&link->dev, "ray_dev_init ending\n"); + return 0; +} + +/*===========================================================================*/ +static int ray_dev_config(struct net_device *dev, struct ifmap *map) +{ + ray_dev_t *local = netdev_priv(dev); + struct pcmcia_device *link = local->finder; + /* Dummy routine to satisfy device structure */ + dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); + if (!(pcmcia_dev_present(link))) { + dev_dbg(&link->dev, "ray_dev_config - device not present\n"); + return -1; + } + + return 0; +} + +/*===========================================================================*/ +static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + ray_dev_t *local = netdev_priv(dev); + struct pcmcia_device *link = local->finder; + short length = skb->len; + + if (!pcmcia_dev_present(link)) { + dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + + dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); + if (local->authentication_state == NEED_TO_AUTH) { + dev_dbg(&link->dev, "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 NETDEV_TX_BUSY; + } + } + + if (length < ETH_ZLEN) { + if (skb_padto(skb, ETH_ZLEN)) + return NETDEV_TX_OK; + 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 NETDEV_TX_BUSY; + case XMIT_NO_INTR: + case XMIT_MSG_BAD: + case XMIT_OK: + default: + dev_kfree_skb(skb); + } + + return NETDEV_TX_OK; +} /* 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 = netdev_priv(dev); + 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 */ + + pr_debug("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: + pr_debug("ray_hw_xmit tx_ccs table busy\n"); + fallthrough; + case ECCSFULL: + pr_debug("ray_hw_xmit No free tx ccs\n"); + fallthrough; + 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); + pr_debug("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)) { + pr_debug("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) +{ + __be16 proto = ((struct ethhdr *)data)->h_proto; + if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */ + pr_debug("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 == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { + /* This is the selective translation table, only 2 entries */ + writeb(0xf8, + &((struct snaphdr_t __iomem *)ptx->var)->org[2]); + } + /* 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 */ + pr_debug("ray_cs translate_frame 802\n"); + if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ + pr_debug("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, + ADDRLEN); + memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, + 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 */ + +/*====================================================================*/ + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get protocol name + */ +static int ray_get_name(struct net_device *dev, struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + strcpy(wrqu->name, "IEEE 802.11-FH"); + return 0; +} + +/*------------------------------------------------------------------*/ < |