diff options
author | Kalle Valo <kvalo@kernel.org> | 2023-02-27 14:17:32 +0200 |
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committer | Kalle Valo <kvalo@kernel.org> | 2023-03-13 15:42:14 +0200 |
commit | 298e50ad8eb8fa12ea68bb2da45bb8ef4edcd0ec (patch) | |
tree | 689136be7a1c224d4a340fb127f6b857c1ca566d /drivers/net/wireless/legacy/ray_cs.c | |
parent | f79cbc77abde22dd01ac90393a7bfb283d9d50a3 (diff) | |
download | linux-298e50ad8eb8fa12ea68bb2da45bb8ef4edcd0ec.tar.gz linux-298e50ad8eb8fa12ea68bb2da45bb8ef4edcd0ec.tar.bz2 linux-298e50ad8eb8fa12ea68bb2da45bb8ef4edcd0ec.zip |
wifi: move raycs, wl3501 and rndis_wlan to legacy directory
To clean up drivers/net/wireless move the old drivers drivers left in the
directory to a new "legacy" directory. I did consider adding
CONFIG_WLAN_VENDOR_LEGACY like other vendors have but then dropped the idea as
these are really old drivers and hopefully we get to remove them soon.
There should be no changes in compilation or in Kconfig options, merely moving files.
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230227121732.8967-3-kvalo@kernel.org
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 +*******************************************************/ |