/* * WL3501 Wireless LAN PCMCIA Card Driver for Linux * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo * Wireless extensions in 2.4 by Gustavo Niemeyer * * References used by Fox Chen while writing the original driver for 2.0.30: * * 1. WL24xx packet drivers (tooasm.asm) * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO * 3. IEEE 802.11 * 4. Linux network driver (/usr/src/linux/drivers/net) * 5. ISA card driver - wl24.c * 6. Linux PCMCIA skeleton driver - skeleton.c * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c * * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode. * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct * ETHER/IP/UDP/TCP header, and acknowledgement overhead) * * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode, * 173 Kbytes/s in TCP. * * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wl3501.h" #ifndef __i386__ #define slow_down_io() #endif /* For rough constant delay */ #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); } /* * 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. */ #define PCMCIA_DEBUG 0 #ifdef PCMCIA_DEBUG static int pc_debug = PCMCIA_DEBUG; module_param(pc_debug, int, 0); #define dprintk(n, format, args...) \ { if (pc_debug > (n)) \ printk(KERN_INFO "%s: " format "\n", __func__ , ##args); } #else #define dprintk(n, format, args...) #endif #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); } #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); } #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); } #define WL3501_RELEASE_TIMEOUT (25 * HZ) #define WL3501_MAX_ADHOC_TRIES 16 #define WL3501_RESUME 0 #define WL3501_SUSPEND 1 /* * The event() function is this driver's Card Services event handler. It will * be called by Card Services when an appropriate card status event is * received. The config() and release() entry points are used to configure or * release a socket, in response to card insertion and ejection events. They * are invoked from the wl24 event handler. */ static int wl3501_config(struct pcmcia_device *link); static void wl3501_release(struct pcmcia_device *link); /* * 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 wl3501_dev_info = "wl3501_cs"; static const struct { int reg_domain; int min, max, deflt; } iw_channel_table[] = { { .reg_domain = IW_REG_DOMAIN_FCC, .min = 1, .max = 11, .deflt = 1, }, { .reg_domain = IW_REG_DOMAIN_DOC, .min = 1, .max = 11, .deflt = 1, }, { .reg_domain = IW_REG_DOMAIN_ETSI, .min = 1, .max = 13, .deflt = 1, }, { .reg_domain = IW_REG_DOMAIN_SPAIN, .min = 10, .max = 11, .deflt = 10, }, { .reg_domain = IW_REG_DOMAIN_FRANCE, .min = 10, .max = 13, .deflt = 10, }, { .reg_domain = IW_REG_DOMAIN_MKK, .min = 14, .max = 14, .deflt = 14, }, { .reg_domain = IW_REG_DOMAIN_MKK1, .min = 1, .max = 14, .deflt = 1, }, { .reg_domain = IW_REG_DOMAIN_ISRAEL, .min = 3, .max = 9, .deflt = 9, }, }; /** * iw_valid_channel - validate channel in regulatory domain * @reg_comain - regulatory domain * @channel - channel to validate * * Returns 0 if invalid in the specified regulatory domain, non-zero if valid. */ static int iw_valid_channel(int reg_domain, int channel) { int i, rc = 0; for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) if (reg_domain == iw_channel_table[i].reg_domain) { rc = channel >= iw_channel_table[i].min && channel <= iw_channel_table[i].max; break; } return rc; } /** * iw_default_channel - get default channel for a regulatory domain * @reg_comain - regulatory domain * * Returns the default channel for a regulatory domain */ static int iw_default_channel(int reg_domain) { int i, rc = 1; for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++) if (reg_domain == iw_channel_table[i].reg_domain) { rc = iw_channel_table[i].deflt; break; } return rc; } static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id, struct iw_mgmt_info_element *el, void *value, int len) { el->id = id; el->len = len; memcpy(el->data, value, len); } static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to, struct iw_mgmt_info_element *from) { iw_set_mgmt_info_element(from->id, to, from->data, from->len); } static inline void wl3501_switch_page(struct wl3501_card *this, u8 page) { wl3501_outb(page, this->base_addr + WL3501_NIC_BSS); } /* * Get Ethernet MAC addresss. * * WARNING: We switch to FPAGE0 and switc back again. * Making sure there is no other WL function beening called by ISR. */ static int wl3501_get_flash_mac_addr(struct wl3501_card *this) { int base_addr = this->base_addr; /* get MAC addr */ wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */ wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */ wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */ /* wait for reading EEPROM */ WL3501_NOPLOOP(100); this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->reg_domain = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS); wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL); wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); WL3501_NOPLOOP(100); this->version[0] = inb(base_addr + WL3501_NIC_IODPA); WL3501_NOPLOOP(100); this->version[1] = inb(base_addr + WL3501_NIC_IODPA); /* switch to SRAM Page 0 (for safety) */ wl3501_switch_page(this, WL3501_BSS_SPAGE0); /* The MAC addr should be 00:60:... */ return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60; } /** * wl3501_set_to_wla - Move 'size' bytes from PC to card * @dest: Card addressing space * @src: PC addressing space * @size: Bytes to move * * Move 'size' bytes from PC to card. (Shouldn't be interrupted) */ static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, int size) { /* switch to SRAM Page 0 */ wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : WL3501_BSS_SPAGE0); /* set LMAL and LMAH */ wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL); wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH); /* rep out to Port A */ wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size); } /** * wl3501_get_from_wla - Move 'size' bytes from card to PC * @src: Card addressing space * @dest: PC addressing space * @size: Bytes to move * * Move 'size' bytes from card to PC. (Shouldn't be interrupted) */ static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, int size) { /* switch to SRAM Page 0 */ wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : WL3501_BSS_SPAGE0); /* set LMAL and LMAH */ wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL); wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH); /* rep get from Port A */ insb(this->base_addr + WL3501_NIC_IODPA, dest, size); } /* * Get/Allocate a free Tx Data Buffer * * *--------------*-----------------*----------------------------------* * | PLCP | MAC Header | DST SRC Data ... | * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) | * *--------------*-----------------*----------------------------------* * \ \- IEEE 802.11 -/ \-------------- len --------------/ * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/ * * Return = Postion in Card */ static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len) { u16 next, blk_cnt = 0, zero = 0; u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len; u16 ret = 0; if (full_len > this->tx_buffer_cnt * 254) goto out; ret = this->tx_buffer_head; while (full_len) { if (full_len < 254) full_len = 0; else full_len -= 254; wl3501_get_from_wla(this, this->tx_buffer_head, &next, sizeof(next)); if (!full_len) wl3501_set_to_wla(this, this->tx_buffer_head, &zero, sizeof(zero)); this->tx_buffer_head = next; blk_cnt++; /* if buffer is not enough */ if (!next && full_len) { this->tx_buffer_head = ret; ret = 0; goto out; } } this->tx_buffer_cnt -= blk_cnt; out: return ret; } /* * Free an allocated Tx Buffer. ptr must be correct position. */ static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr) { /* check if all space is not free */ if (!this->tx_buffer_head) this->tx_buffer_head = ptr; else wl3501_set_to_wla(this, this->tx_buffer_tail, &ptr, sizeof(ptr)); while (ptr) { u16 next; this->tx_buffer_cnt++; wl3501_get_from_wla(this, ptr, &next, sizeof(next)); this->tx_buffer_tail = ptr; ptr = next; } } static int wl3501_esbq_req_test(struct wl3501_card *this) { u8 tmp; wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp)); return tmp & 0x80; } static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr) { u16 tmp = 0; wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2); wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp)); this->esbq_req_head += 4; if (this->esbq_req_head >= this->esbq_req_end) this->esbq_req_head = this->esbq_req_start; } static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size) { int rc = -EIO; if (wl3501_esbq_req_test(this)) { u16 ptr = wl3501_get_tx_buffer(this, sig_size); if (ptr) { wl3501_set_to_wla(this, ptr, sig, sig_size); wl3501_esbq_req(this, &ptr); rc = 0; } } return rc; } static int wl3501_get_mib_value(struct wl3501_card *this, u8 index, void *bf, int size) { struct wl3501_get_req sig = { .sig_id = WL3501_SIG_GET_REQ, .mib_attrib = index, }; unsigned long flags; int rc = -EIO; spin_lock_irqsave(&this->lock, flags); if (wl3501_esbq_req_test(this)) { u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); if (ptr) { wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); wl3501_esbq_req(this, &ptr); this->sig_get_confirm.mib_status = 255; spin_unlock_irqrestore(&this->lock, flags); rc = wait_event_interruptible(this->wait, this->sig_get_confirm.mib_status != 255); if (!rc) memcpy(bf, this->sig_get_confirm.mib_value, size); goto out; } } spin_unlock_irqrestore(&this->lock, flags); out: return rc; } static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend) { struct wl3501_pwr_mgmt_req sig = { .sig_id = WL3501_SIG_PWR_MGMT_REQ, .pwr_save = suspend, .wake_up = !suspend, .receive_dtims = 10, }; unsigned long flags; int rc = -EIO; spin_lock_irqsave(&this->lock, flags); if (wl3501_esbq_req_test(this)) { u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig)); if (ptr) { wl3501_set_to_wla(this, ptr, &sig, sizeof(sig)); wl3501_esbq_req(this, &ptr); this->sig_pwr_mgmt_confirm.status = 255; spin_unlock_irqrestore(&this->lock, flags); rc = wait_event_interruptible(this->wait, this->sig_pwr_mgmt_confirm.status != 255); printk(KERN_INFO "%s: %s status=%d\n", __func__, suspend ? "suspend" : "resume", this->sig_pwr_mgmt_confirm.status); goto out; } } spin_unlock_irqrestore(&this->lock, flags); out: return rc; } /** * wl3501_send_pkt - Send a packet. * @this - card * * Send a packet. * * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr, * data[6] - data[11] is Src MAC Addr) * Ref: IEEE 802.11 */ static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len) { u16 bf, sig_bf, next, tmplen, pktlen; struct wl3501_md_req sig = { .sig_id = WL3501_SIG_MD_REQ, }; u8 *pdata = (char *)data; int rc = -EIO; if (wl3501_esbq_req_test(this)) { sig_bf = wl3501_get_tx_buffer(this, sizeof(sig)); rc = -ENOMEM; if (!sig_bf) /* No free buffer available */ goto out; bf = wl3501_get_tx_buffer(this, len + 26 + 24); if (!bf) { /* No free buffer available */ wl3501_free_tx_buffer(this, sig_bf); goto out; } rc = 0; memcpy(&sig.daddr[0], pdata, 12); pktlen = len - 12; pdata += 12; sig.data = bf; if (((*pdata) * 256 + (*(pdata + 1))) > 1500) { u8 addr4[ETH_ALEN] = { [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00, }; wl3501_set_to_wla(this, bf + 2 + offsetof(struct wl3501_tx_hdr, addr4), addr4, sizeof(addr4)); sig.size = pktlen + 24 + 4 + 6; if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) { tmplen = 254 - sizeof(struct wl3501_tx_hdr); pktlen -= tmplen; } else { tmplen = pktlen; pktlen = 0; } wl3501_set_to_wla(this, bf + 2 + sizeof(struct wl3501_tx_hdr), pdata, tmplen); pdata += tmplen; wl3501_get_from_wla(this, bf, &next, sizeof(next)); bf = next; } else { sig.size = pktlen + 24 + 4 - 2; pdata += 2; pktlen -= 2; if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) { tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6; pktlen -= tmplen; } else { tmplen = pktlen; pktlen = 0; } wl3501_set_to_wla(this, bf + 2 + offsetof(struct wl3501_tx_hdr, addr4), pdata, tmplen); pdata += tmplen; wl3501_get_from_wla(this, bf, &next, sizeof(next)); bf = next; } while (pktlen > 0) { if (pktlen > 254) { tmplen = 254; pktlen -= 254; } else { tmplen = pktlen; pktlen = 0; } wl3501_set_to_wla(this, bf + 2, pdata, tmplen); pdata += tmplen; wl3501_get_from_wla(this, bf, &next, sizeof(next)); bf = next; } wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig)); wl3501_esbq_req(this, &sig_bf); } out: return rc; } static int wl3501_mgmt_resync(struct wl3501_card *this) { struct wl3501_resync_req sig = { .sig_id = WL3501_SIG_RESYNC_REQ, }; return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static inline int wl3501_fw_bss_type(struct wl3501_card *this) { return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA : WL3501_NET_TYPE_ADHOC; } static inline int wl3501_fw_cap_info(struct wl3501_card *this) { return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS : WL3501_MGMT_CAPABILITY_IBSS; } static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time) { struct wl3501_scan_req sig = { .sig_id = WL3501_SIG_SCAN_REQ, .scan_type = WL3501_SCAN_TYPE_ACTIVE, .probe_delay = 0x10, .min_chan_time = chan_time, .max_chan_time = chan_time, .bss_type = wl3501_fw_bss_type(this), }; this->bss_cnt = this->join_sta_bss = 0; return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas) { struct wl3501_join_req sig = { .sig_id = WL3501_SIG_JOIN_REQ, .timeout = 10, .ds_pset = { .el = { .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, .len = 1, }, .chan = this->chan, }, }; memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72); return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static int wl3501_mgmt_start(struct wl3501_card *this) { struct wl3501_start_req sig = { .sig_id = WL3501_SIG_START_REQ, .beacon_period = 400, .dtim_period = 1, .ds_pset = { .el = { .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET, .len = 1, }, .chan = this->chan, }, .bss_basic_rset = { .el = { .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, .len = 2, }, .data_rate_labels = { [0] = IW_MGMT_RATE_LABEL_MANDATORY | IW_MGMT_RATE_LABEL_1MBIT, [1] = IW_MGMT_RATE_LABEL_MANDATORY | IW_MGMT_RATE_LABEL_2MBIT, }, }, .operational_rset = { .el = { .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES, .len = 2, }, .data_rate_labels = { [0] = IW_MGMT_RATE_LABEL_MANDATORY | IW_MGMT_RATE_LABEL_1MBIT, [1] = IW_MGMT_RATE_LABEL_MANDATORY | IW_MGMT_RATE_LABEL_2MBIT, }, }, .ibss_pset = { .el = { .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET, .len = 2, }, .atim_window = 10, }, .bss_type = wl3501_fw_bss_type(this), .cap_info = wl3501_fw_cap_info(this), }; iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el); iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el); return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr) { u16 i = 0; int matchflag = 0; struct wl3501_scan_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); if (sig.status == WL3501_STATUS_SUCCESS) { dprintk(3, "success"); if ((this->net_type == IW_MODE_INFRA && (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) || (this->net_type == IW_MODE_ADHOC && (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) || this->net_type == IW_MODE_AUTO) { if (!this->essid.el.len) matchflag = 1; else if (this->essid.el.len == 3 && !memcmp(this->essid.essid, "ANY", 3)) matchflag = 1; else if (this->essid.el.len != sig.ssid.el.len) matchflag = 0; else if (memcmp(this->essid.essid, sig.ssid.essid, this->essid.el.len)) matchflag = 0; else matchflag = 1; if (matchflag) { for (i = 0; i < this->bss_cnt; i++) { if (!memcmp(this->bss_set[i].bssid, sig.bssid, ETH_ALEN)) { matchflag = 0; break; } } } if (matchflag && (i < 20)) { memcpy(&this->bss_set[i].beacon_period, &sig.beacon_period, 73); this->bss_cnt++; this->rssi = sig.rssi; } } } else if (sig.status == WL3501_STATUS_TIMEOUT) { dprintk(3, "timeout"); this->join_sta_bss = 0; for (i = this->join_sta_bss; i < this->bss_cnt; i++) if (!wl3501_mgmt_join(this, i)) break; this->join_sta_bss = i; if (this->join_sta_bss == this->bss_cnt) { if (this->net_type == IW_MODE_INFRA) wl3501_mgmt_scan(this, 100); else { this->adhoc_times++; if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) wl3501_mgmt_start(this); else wl3501_mgmt_scan(this, 100); } } } } /** * wl3501_block_interrupt - Mask interrupt from SUTRO * @this - card * * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST) * Return: 1 if interrupt is originally enabled */ static int wl3501_block_interrupt(struct wl3501_card *this) { u8 old = inb(this->base_addr + WL3501_NIC_GCR); u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC | WL3501_GCR_ENECINT)); wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); return old & WL3501_GCR_ENECINT; } /** * wl3501_unblock_interrupt - Enable interrupt from SUTRO * @this - card * * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST) * Return: 1 if interrupt is originally enabled */ static int wl3501_unblock_interrupt(struct wl3501_card *this) { u8 old = inb(this->base_addr + WL3501_NIC_GCR); u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) | WL3501_GCR_ENECINT; wl3501_outb(new, this->base_addr + WL3501_NIC_GCR); return old & WL3501_GCR_ENECINT; } /** * wl3501_receive - Receive data from Receive Queue. * * Receive data from Receive Queue. * * @this: card * @bf: address of host * @size: size of buffer. */ static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size) { u16 next_addr, next_addr1; u8 *data = bf + 12; size -= 12; wl3501_get_from_wla(this, this->start_seg + 2, &next_addr, sizeof(next_addr)); if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) { wl3501_get_from_wla(this, this->start_seg + sizeof(struct wl3501_rx_hdr), data, WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)); size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr); } else { wl3501_get_from_wla(this, this->start_seg + sizeof(struct wl3501_rx_hdr), data, size); size = 0; } while (size > 0) { if (size > WL3501_BLKSZ - 5) { wl3501_get_from_wla(this, next_addr + 5, data, WL3501_BLKSZ - 5); size -= WL3501_BLKSZ - 5; data += WL3501_BLKSZ - 5; wl3501_get_from_wla(this, next_addr + 2, &next_addr1, sizeof(next_addr1)); next_addr = next_addr1; } else { wl3501_get_from_wla(this, next_addr + 5, data, size); size = 0; } } return 0; } static void wl3501_esbq_req_free(struct wl3501_card *this) { u8 tmp; u16 addr; if (this->esbq_req_head == this->esbq_req_tail) goto out; wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp)); if (!(tmp & 0x80)) goto out; wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr)); wl3501_free_tx_buffer(this, addr); this->esbq_req_tail += 4; if (this->esbq_req_tail >= this->esbq_req_end) this->esbq_req_tail = this->esbq_req_start; out: return; } static int wl3501_esbq_confirm(struct wl3501_card *this) { u8 tmp; wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); return tmp & 0x80; } static void wl3501_online(struct net_device *dev) { struct wl3501_card *this = netdev_priv(dev); printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n", dev->name, this->bssid); netif_wake_queue(dev); } static void wl3501_esbq_confirm_done(struct wl3501_card *this) { u8 tmp = 0; wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp)); this->esbq_confirm += 4; if (this->esbq_confirm >= this->esbq_confirm_end) this->esbq_confirm = this->esbq_confirm_start; } static int wl3501_mgmt_auth(struct wl3501_card *this) { struct wl3501_auth_req sig = { .sig_id = WL3501_SIG_AUTH_REQ, .type = WL3501_SYS_TYPE_OPEN, .timeout = 1000, }; dprintk(3, "entry"); memcpy(sig.mac_addr, this->bssid, ETH_ALEN); return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static int wl3501_mgmt_association(struct wl3501_card *this) { struct wl3501_assoc_req sig = { .sig_id = WL3501_SIG_ASSOC_REQ, .timeout = 1000, .listen_interval = 5, .cap_info = this->cap_info, }; dprintk(3, "entry"); memcpy(sig.mac_addr, this->bssid, ETH_ALEN); return wl3501_esbq_exec(this, &sig, sizeof(sig)); } static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr) { struct wl3501_card *this = netdev_priv(dev); struct wl3501_join_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); if (sig.status == WL3501_STATUS_SUCCESS) { if (this->net_type == IW_MODE_INFRA) { if (this->join_sta_bss < this->bss_cnt) { const int i = this->join_sta_bss; memcpy(this->bssid, this->bss_set[i].bssid, ETH_ALEN); this->chan = this->bss_set[i].ds_pset.chan; iw_copy_mgmt_info_element(&this->keep_essid.el, &this->bss_set[i].ssid.el); wl3501_mgmt_auth(this); } } else { const int i = this->join_sta_bss; memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN); this->chan = this->bss_set[i].ds_pset.chan; iw_copy_mgmt_info_element(&this->keep_essid.el, &this->bss_set[i].ssid.el); wl3501_online(dev); } } else { int i; this->join_sta_bss++; for (i = this->join_sta_bss; i < this->bss_cnt; i++) if (!wl3501_mgmt_join(this, i)) break; this->join_sta_bss = i; if (this->join_sta_bss == this->bss_cnt) { if (this->net_type == IW_MODE_INFRA) wl3501_mgmt_scan(this, 100); else { this->adhoc_times++; if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES) wl3501_mgmt_start(this); else wl3501_mgmt_scan(this, 100); } } } } static inline void wl3501_alarm_interrupt(struct net_device *dev, struct wl3501_card *this) { if (this->net_type == IW_MODE_INFRA) { printk(KERN_INFO "Wireless LAN offline\n"); netif_stop_queue(dev); wl3501_mgmt_resync(this); } } static inline void wl3501_md_confirm_interrupt(struct net_device *dev, struct wl3501_card *this, u16 addr) { struct wl3501_md_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); wl3501_free_tx_buffer(this, sig.data); if (netif_queue_stopped(dev)) netif_wake_queue(dev); } static inline void wl3501_md_ind_interrupt(struct net_device *dev, struct wl3501_card *this, u16 addr) { struct wl3501_md_ind sig; struct sk_buff *skb; u8 rssi, addr4[ETH_ALEN]; u16 pkt_len; wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); this->start_seg = sig.data; wl3501_get_from_wla(this, sig.data + offsetof(struct wl3501_rx_hdr, rssi), &rssi, sizeof(rssi)); this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255; wl3501_get_from_wla(this, sig.data + offsetof(struct wl3501_rx_hdr, addr4), &addr4, sizeof(addr4)); if (!(addr4[0] == 0xAA && addr4[1] == 0xAA && addr4[2] == 0x03 && addr4[4] == 0x00)) { printk(KERN_INFO "Insupported packet type!\n"); return; } pkt_len = sig.size + 12 - 24 - 4 - 6; skb = dev_alloc_skb(pkt_len + 5); if (!skb) { printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n", dev->name, pkt_len); dev->stats.rx_dropped++; } else { skb->dev = dev; skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */ skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12); wl3501_receive(this, skb->data, pkt_len); skb_put(skb, pkt_len); skb->protocol = eth_type_trans(skb, dev); dev->stats.rx_packets++; dev->stats.rx_bytes += skb->len; netif_rx(skb); } } static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this, u16 addr, void *sig, int size) { dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &this->sig_get_confirm, sizeof(this->sig_get_confirm)); wake_up(&this->wait); } static inline void wl3501_start_confirm_interrupt(struct net_device *dev, struct wl3501_card *this, u16 addr) { struct wl3501_start_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); if (sig.status == WL3501_STATUS_SUCCESS) netif_wake_queue(dev); } static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev, u16 addr) { struct wl3501_card *this = netdev_priv(dev); struct wl3501_assoc_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); if (sig.status == WL3501_STATUS_SUCCESS) wl3501_online(dev); } static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this, u16 addr) { struct wl3501_auth_confirm sig; dprintk(3, "entry"); wl3501_get_from_wla(this, addr, &sig, sizeof(sig)); if (sig.status == WL3501_STATUS_SUCCESS) wl3501_mgmt_association(this); else wl3501_mgmt_resync(this); } static inline void wl3501_rx_interrupt(struct net_device *dev) { int morepkts; u16 addr; u8 sig_id; struct wl3501_card *this = netdev_priv(dev); dprintk(3, "entry"); loop: morepkts = 0; if (!wl3501_esbq_confirm(this)) goto free; wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr)); wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id)); switch (sig_id) { case WL3501_SIG_DEAUTH_IND: case WL3501_SIG_DISASSOC_IND: case WL3501_SIG_ALARM: wl3501_alarm_interrupt(dev, this); break; case WL3501_SIG_MD_CONFIRM: wl3501_md_confirm_interrupt(dev, this, addr); break; case WL3501_SIG_MD_IND: wl3501_md_ind_interrupt(dev, this, addr); break; case WL3501_SIG_GET_CONFIRM: wl3501_get_confirm_interrupt(this, addr, &this->sig_get_confirm, sizeof(this->sig_get_confirm)); break; case WL3501_SIG_PWR_MGMT_CONFIRM: wl3501_get_confirm_interrupt(this, addr, &this->sig_pwr_mgmt_confirm, sizeof(this->sig_pwr_mgmt_confirm)); break; case WL3501_SIG_START_CONFIRM: wl3501_start_confirm_interrupt(dev, this, addr); break; case WL3501_SIG_SCAN_CONFIRM: wl3501_mgmt_scan_confirm(this, addr); break; case WL3501_SIG_JOIN_CONFIRM: wl3501_mgmt_join_confirm(dev, addr); break; case WL3501_SIG_ASSOC_CONFIRM: wl3501_assoc_confirm_interrupt(dev, addr); break; case WL3501_SIG_AUTH_CONFIRM: wl3501_auth_confirm_interrupt(this, addr); break; case WL3501_SIG_RESYNC_CONFIRM: wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */ break; } wl3501_esbq_confirm_done(this); morepkts = 1; /* free request if necessary */ free: wl3501_esbq_req_free(this); if (morepkts) goto loop; } static inline void wl3501_ack_interrupt(struct wl3501_card *this) { wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR); } /** * wl3501_interrupt - Hardware interrupt from card. * @irq - Interrupt number * @dev_id - net_device * * We must acknowledge the interrupt as soon as possible, and block the * interrupt from the same card immediately to prevent re-entry. * * Before accessing the Control_Status_Block, we must lock SUTRO first. * On the other hand, to prevent SUTRO from malfunctioning, we must * unlock the SUTRO as soon as possible. */ static irqreturn_t wl3501_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct wl3501_card *this; this = netdev_priv(dev); spin_lock(&this->lock); wl3501_ack_interrupt(this); wl3501_block_interrupt(this); wl3501_rx_interrupt(dev); wl3501_unblock_interrupt(this); spin_unlock(&this->lock); return IRQ_HANDLED; } static int wl3501_reset_board(struct wl3501_card *this) { u8 tmp = 0; int i, rc = 0; /* Coreset */ wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR); /* Reset SRAM 0x480 to zero */ wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); /* Start up */ wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR); WL3501_NOPLOOP(1024 * 50); wl3501_unblock_interrupt(this); /* acme: was commented */ /* Polling Self_Test_Status */ for (i = 0; i < 10000; i++) { wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp)); if (tmp == 'W') { /* firmware complete all test successfully */ tmp = 'A'; wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp)); goto out; } WL3501_NOPLOOP(10); } printk(KERN_WARNING "%s: failed to reset the board!\n", __func__); rc = -ENODEV; out: return rc; } static int wl3501_init_firmware(struct wl3501_card *this) { u16 ptr, next; int rc = wl3501_reset_board(this); if (rc) goto fail; this->card_name[0] = '\0'; wl3501_get_from_wla(this, 0x1a00, this->card_name, sizeof(this->card_name)); this->card_name[sizeof(this->card_name) - 1] = '\0'; this->firmware_date[0] = '\0'; wl3501_get_from_wla(this, 0x1a40, this->firmware_date, sizeof(this->firmware_date)); this->firmware_date[sizeof(this->firmware_date) - 1] = '\0'; /* Switch to SRAM Page 0 */ wl3501_switch_page(this, WL3501_BSS_SPAGE0); /* Read parameter from card */ wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2); wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2); wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2); wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2); wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2); wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2); this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start; this->esbq_req_end += this->esbq_req_start; this->esbq_confirm = this->esbq_confirm_start; this->esbq_confirm_end += this->esbq_confirm_start; /* Initial Tx Buffer */ this->tx_buffer_cnt = 1; ptr = this->tx_buffer_head; next = ptr + WL3501_BLKSZ; while ((next - this->tx_buffer_head) < this->tx_buffer_size) { this->tx_buffer_cnt++; wl3501_set_to_wla(this, ptr, &next, sizeof(next)); ptr = next; next = ptr + WL3501_BLKSZ; } rc = 0; next = 0; wl3501_set_to_wla(this, ptr, &next, sizeof(next)); this->tx_buffer_tail = ptr; out: return rc; fail: printk(KERN_WARNING "%s: failed!\n", __func__); goto out; } static int wl3501_close(struct net_device *dev) { struct wl3501_card *this = netdev_priv(dev); int rc = -ENODEV; unsigned long flags; struct pcmcia_device *link; link = this->p_dev; spin_lock_irqsave(&this->lock, flags); link->open--; /* Stop wl3501_hard_start_xmit() from now on */ netif_stop_queue(dev); wl3501_ack_interrupt(this); /* Mask interrupts from the SUTRO */ wl3501_block_interrupt(this); rc = 0; printk(KERN_INFO "%s: WL3501 closed\n", dev->name); spin_unlock_irqrestore(&this->lock, flags); return rc; } /** * wl3501_reset - Reset the SUTRO. * @dev - network device * * It is almost the same as wl3501_open(). In fact, we may just wl3501_close() * and wl3501_open() again, but I wouldn't like to free_irq() when the driver * is running. It seems to be dangerous. */ static int wl3501_reset(struct net_device *dev) { struct wl3501_card *this = netdev_priv(dev); int rc = -ENODEV; wl3501_block_interrupt(this); if (wl3501_init_firmware(this)) { printk(KERN_WARNING "%s: Can't initialize Firmware!\n", dev->name); /* Free IRQ, and mark IRQ as unused */ free_irq(dev->irq, dev); goto out; } /* * Queue has to be started only when the Card is Started */ netif_stop_queue(dev); this->adhoc_times = 0; wl3501_ack_interrupt(this); wl3501_unblock_interrupt(this); wl3501_mgmt_scan(this, 100); dprintk(1, "%s: device reset", dev->name); rc = 0; out: return rc; } static void wl3501_tx_timeout(struct net_device *dev) { struct wl3501_card *this = netdev_priv(dev); struct net_device_stats *stats = &dev->stats; unsigned long flags; int rc; stats->tx_errors++; spin_lock_irqsave(&this->lock, flags); rc = wl3501_reset(dev); spin_unlock_irqrestore(&this->lock, flags); if (rc) printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n", dev->name, rc); else { dev->trans_start = jiffies; netif_wake_queue(dev); } } /* * Return : 0 - OK * 1 - Could not transmit (dev_queue_xmit will queue it) * and try to sent it later */ static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { int enabled, rc; struct wl3501_card *this = netdev_priv(dev); unsigned long flags; spin_lock_irqsave(&this->lock, flags); enabled = wl3501_block_interrupt(this); dev->trans_start = jiffies; rc = wl3501_send_pkt(this, skb->data, skb->len); if (enabled) wl3501_unblock_interrupt(this); if (rc) { ++dev->stats.tx_dropped; netif_stop_queue(dev); } else { ++dev->stats.tx_packets; dev->stats.tx_bytes += skb->len; kfree_skb(skb); if (this->tx_buffer_cnt < 2) netif_stop_queue(dev); } spin_unlock_irqrestore(&this->lock, flags); return NETDEV_TX_OK; } static int wl3501_open(struct net_device *dev) { int rc = -ENODEV; struct wl3501_card *this = netdev_priv(dev); unsigned long flags; struct pcmcia_device *link; link = this->p_dev; spin_lock_irqsave(&this->lock, flags); if (!pcmcia_dev_present(link)) goto out; netif_device_attach(dev); link->open++; /* Initial WL3501 firmware */ dprintk(1, "%s: Initialize WL3501 firmware...", dev->name); if (wl3501_init_firmware(this)) goto fail; /* Initial device variables */ this->adhoc_times = 0; /* Acknowledge Interrupt, for cleaning last state */ wl3501_ack_interrupt(this); /* Enable interrupt from card after all */ wl3501_unblock_interrupt(this); wl3501_mgmt_scan(this, 100); rc = 0; dprintk(1, "%s: WL3501 opened", dev->name); printk(KERN_INFO "%s: Card Name: %s\n" "%s: Firmware Date: %s\n", dev->name, this->card_name, dev->name, this->firmware_date); out: spin_unlock_irqrestore(&this->lock, flags); return rc; fail: printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name); goto out; } static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) { struct wl3501_card *this = netdev_priv(dev); struct iw_statistics *wstats = &this->wstats; u32 value; /* size checked: it is u32 */ memset(wstats, 0, sizeof(*wstats)); wstats->status = netif_running(dev); if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT, &value, sizeof(value))) wstats->discard.code += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT, &value, sizeof(value))) wstats->discard.code += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT, &value, sizeof(value))) wstats->discard.code += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT, &value, sizeof(value))) wstats->discard.retries = value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT, &value, sizeof(value))) wstats->discard.misc += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT, &value, sizeof(value))) wstats->discard.misc += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT, &value, sizeof(value))) wstats->discard.misc += value; if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT, &value, sizeof(value))) wstats->discard.misc += value; return wstats; } static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver)); } static const struct ethtool_ops ops = { .get_drvinfo = wl3501_get_drvinfo }; /** * wl3501_detach - deletes a driver "instance" * @link - FILL_IN * * 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 wl3501_detach(struct pcmcia_device *link) { struct net_device *dev = link->priv; /* 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(). */ while (link->open > 0) wl3501_close(dev); netif_device_detach(dev); wl3501_release(link); if (link->priv) free_netdev(link->priv); return; } static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name)); return 0; } static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); int channel = wrqu->freq.m; int rc = -EINVAL; if (iw_valid_channel(this->reg_domain, channel)) { this->chan = channel; rc = wl3501_reset(dev); } return rc; } static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000; wrqu->freq.e = 1; return 0; } static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { int rc = -EINVAL; if (wrqu->mode == IW_MODE_INFRA || wrqu->mode == IW_MODE_ADHOC || wrqu->mode == IW_MODE_AUTO) { struct wl3501_card *this = netdev_priv(dev); this->net_type = wrqu->mode; rc = wl3501_reset(dev); } return rc; } static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); wrqu->mode = this->net_type; return 0; } static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); wrqu->sens.value = this->rssi; wrqu->sens.disabled = !wrqu->sens.value; wrqu->sens.fixed = 1; return 0; } static int wl3501_get_range(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct iw_range *range = (struct iw_range *)extra; /* Set the length (very important for backward compatibility) */ wrqu->data.length = sizeof(*range); /* Set all the info we don't care or don't know about to zero */ memset(range, 0, sizeof(*range)); /* Set the Wireless Extension versions */ range->we_version_compiled = WIRELESS_EXT; range->we_version_source = 1; range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */ /* FIXME: study the code to fill in more fields... */ return 0; } static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 }; int rc = -EINVAL; /* FIXME: we support other ARPHRDs...*/ if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) goto out; if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) { /* FIXME: rescan? */ } else memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); /* FIXME: rescan? deassoc & scan? */ rc = 0; out: return rc; } static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); wrqu->ap_addr.sa_family = ARPHRD_ETHER; memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN); return 0; } static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { /* * FIXME: trigger scanning with a reset, yes, I'm lazy */ return wl3501_reset(dev); } static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); int i; char *current_ev = extra; struct iw_event iwe; for (i = 0; i < this->bss_cnt; ++i) { iwe.cmd = SIOCGIWAP; iwe.u.ap_addr.sa_family = ARPHRD_ETHER; memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN); current_ev = iwe_stream_add_event(info, current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_ADDR_LEN); iwe.cmd = SIOCGIWESSID; iwe.u.data.flags = 1; iwe.u.data.length = this->bss_set[i].ssid.el.len; current_ev = iwe_stream_add_point(info, current_ev, extra + IW_SCAN_MAX_DATA, &iwe, this->bss_set[i].ssid.essid); iwe.cmd = SIOCGIWMODE; iwe.u.mode = this->bss_set[i].bss_type; current_ev = iwe_stream_add_event(info, current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_UINT_LEN); iwe.cmd = SIOCGIWFREQ; iwe.u.freq.m = this->bss_set[i].ds_pset.chan; iwe.u.freq.e = 0; current_ev = iwe_stream_add_event(info, current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_FREQ_LEN); iwe.cmd = SIOCGIWENCODE; if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY) iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; else iwe.u.data.flags = IW_ENCODE_DISABLED; iwe.u.data.length = 0; current_ev = iwe_stream_add_point(info, current_ev, extra + IW_SCAN_MAX_DATA, &iwe, NULL); } /* Length of data */ wrqu->data.length = (current_ev - extra); wrqu->data.flags = 0; /* FIXME: set properly these flags */ return 0; } static int wl3501_set_essid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); if (wrqu->data.flags) { iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, extra, wrqu->data.length); } else { /* We accept any ESSID */ iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, "ANY", 3); } return wl3501_reset(dev); } static int wl3501_get_essid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); unsigned long flags; spin_lock_irqsave(&this->lock, flags); wrqu->essid.flags = 1; wrqu->essid.length = this->essid.el.len; memcpy(extra, this->essid.essid, this->essid.el.len); spin_unlock_irqrestore(&this->lock, flags); return 0; } static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); if (wrqu->data.length > sizeof(this->nick)) return -E2BIG; strlcpy(this->nick, extra, wrqu->data.length); return 0; } static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct wl3501_card *this = netdev_priv(dev); strlcpy(extra, this->nick, 32); wrqu->data.length = strlen(extra); return 0; } static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { /* * FIXME: have to see from where to get this info, perhaps this card * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most * common with the Planet Access Points. -acme */ wrqu->bitrate.value = 2000000; wrqu->bitrate.fixed = 1; return 0; } static int wl3501_get_rts_threshold(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u16 threshold; /* size checked: it is u16 */ struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD, &threshold, sizeof(threshold)); if (!rc) { wrqu->rts.value = threshold; wrqu->rts.disabled = threshold >= 2347; wrqu->rts.fixed = 1; } return rc; } static int wl3501_get_frag_threshold(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u16 threshold; /* size checked: it is u16 */ struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD, &threshold, sizeof(threshold)); if (!rc) { wrqu->frag.value = threshold; wrqu->frag.disabled = threshold >= 2346; wrqu->frag.fixed = 1; } return rc; } static int wl3501_get_txpow(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u16 txpow; struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL, &txpow, sizeof(txpow)); if (!rc) { wrqu->txpower.value = txpow; wrqu->txpower.disabled = 0; /* * From the MIB values I think this can be configurable, * as it lists several tx power levels -acme */ wrqu->txpower.fixed = 0; wrqu->txpower.flags = IW_TXPOW_MWATT; } return rc; } static int wl3501_get_retry(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u8 retry; /* size checked: it is u8 */ struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_LONG_RETRY_LIMIT, &retry, sizeof(retry)); if (rc) goto out; if (wrqu->retry.flags & IW_RETRY_LONG) { wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; goto set_value; } rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, &retry, sizeof(retry)); if (rc) goto out; wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; set_value: wrqu->retry.value = retry; wrqu->retry.disabled = 0; out: return rc; } static int wl3501_get_encode(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u8 implemented, restricted, keys[100], len_keys, tocopy; struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED, &implemented, sizeof(implemented)); if (rc) goto out; if (!implemented) { wrqu->encoding.flags = IW_ENCODE_DISABLED; goto out; } rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED, &restricted, sizeof(restricted)); if (rc) goto out; wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN; rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN, &len_keys, sizeof(len_keys)); if (rc) goto out; rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS, keys, len_keys); if (rc) goto out; tocopy = min_t(u8, len_keys, wrqu->encoding.length); tocopy = min_t(u8, tocopy, 100); wrqu->encoding.length = tocopy; memcpy(extra, keys, tocopy); out: return rc; } static int wl3501_get_power(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { u8 pwr_state; struct wl3501_card *this = netdev_priv(dev); int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_CURRENT_PWR_STATE, &pwr_state, sizeof(pwr_state)); if (rc) goto out; wrqu->power.disabled = !pwr_state; wrqu->power.flags = IW_POWER_ON; out: return rc; } static const iw_handler wl3501_handler[] = { [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name, [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq, [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq, [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode, [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode, [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens, [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range, [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy, [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy, [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy, [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy, [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap, [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap, [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan, [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan, [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid, [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid, [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick, [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick, [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate, [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold, [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold, [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow, [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry, [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode, [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power, }; static const struct iw_handler_def wl3501_handler_def = { .num_standard = ARRAY_SIZE(wl3501_handler), .standard = (iw_handler *)wl3501_handler, .get_wireless_stats = wl3501_get_wireless_stats, }; static const struct net_device_ops wl3501_netdev_ops = { .ndo_open = wl3501_open, .ndo_stop = wl3501_close, .ndo_start_xmit = wl3501_hard_start_xmit, .ndo_tx_timeout = wl3501_tx_timeout, .ndo_change_mtu = eth_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; /** * wl3501_attach - creates an "instance" of the driver * * Creates an "instance" of the driver, allocating local data structures for * one device. The device is registered with Card Services. * * The dev_link structure is initialized, but we don't actually configure the * card at this point -- we wait until we receive a card insertion event. */ static int wl3501_probe(struct pcmcia_device *p_dev) { struct net_device *dev; struct wl3501_card *this; /* The io structure describes IO port mapping */ p_dev->io.NumPorts1 = 16; p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 5; /* Interrupt setup */ p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID; p_dev->irq.Handler = wl3501_interrupt; /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; p_dev->conf.ConfigIndex = 1; dev = alloc_etherdev(sizeof(struct wl3501_card)); if (!dev) goto out_link; dev->netdev_ops = &wl3501_netdev_ops; dev->watchdog_timeo = 5 * HZ; this = netdev_priv(dev); this->wireless_data.spy_data = &this->spy_data; this->p_dev = p_dev; dev->wireless_data = &this->wireless_data; dev->wireless_handlers = &wl3501_handler_def; SET_ETHTOOL_OPS(dev, &ops); netif_stop_queue(dev); p_dev->priv = p_dev->irq.Instance = dev; return wl3501_config(p_dev); out_link: return -ENOMEM; } #define CS_CHECK(fn, ret) \ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) /** * wl3501_config - configure the PCMCIA socket and make eth device available * @link - FILL_IN * * wl3501_config() is scheduled to run after a CARD_INSERTION event is * received, to configure the PCMCIA socket, and to make the ethernet device * available to the system. */ static int wl3501_config(struct pcmcia_device *link) { struct net_device *dev = link->priv; int i = 0, j, last_fn, last_ret; struct wl3501_card *this; /* Try allocating IO ports. This tries a few fixed addresses. If you * want, you can also read the card's config table to pick addresses -- * see the serial driver for an example. */ for (j = 0x280; j < 0x400; j += 0x20) { /* The '^0x300' is so that we probe 0x300-0x3ff first, then * 0x200-0x2ff, and so on, because this seems safer */ link->io.BasePort1 = j; link->io.BasePort2 = link->io.BasePort1 + 0x10; i = pcmcia_request_io(link, &link->io); if (i == 0) break; } if (i != 0) { cs_error(link, RequestIO, i); goto failed; } /* Now allocate an interrupt line. Note that this does not actually * assign a handler to the interrupt. */ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); /* This actually configures the PCMCIA socket -- setting up the I/O * windows and the interrupt mapping. */ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); dev->irq = link->irq.AssignedIRQ; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &handle_to_dev(link)); if (register_netdev(dev)) { printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n"); goto failed; } this = netdev_priv(dev); /* * At this point, the dev_node_t structure(s) should be initialized and * arranged in a linked list at link->dev_node. */ link->dev_node = &this->node; this->base_addr = dev->base_addr; if (!wl3501_get_flash_mac_addr(this)) { printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n", dev->name); goto failed; } strcpy(this->node.dev_name, dev->name); for (i = 0; i < 6; i++) dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; /* print probe information */ printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, " "MAC addr in flash ROM:%pM\n", dev->name, this->base_addr, (int)dev->irq, dev->dev_addr); /* * Initialize card parameters - added by jss */ this->net_type = IW_MODE_INFRA; this->bss_cnt = 0; this->join_sta_bss = 0; this->adhoc_times = 0; iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el, "ANY", 3); this->card_name[0] = '\0'; this->firmware_date[0] = '\0'; this->rssi = 255; this->chan = iw_default_channel(this->reg_domain); strlcpy(this->nick, "Planet WL3501", sizeof(this->nick)); spin_lock_init(&this->lock); init_waitqueue_head(&this->wait); netif_start_queue(dev); return 0; cs_failed: cs_error(link, last_fn, last_ret); failed: wl3501_release(link); return -ENODEV; } /** * wl3501_release - unregister the net, release PCMCIA configuration * @arg - link * * After a card is removed, wl3501_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 wl3501_release(struct pcmcia_device *link) { struct net_device *dev = link->priv; /* Unlink the device chain */ if (link->dev_node) unregister_netdev(dev); pcmcia_disable_device(link); } static int wl3501_suspend(struct pcmcia_device *link) { struct net_device *dev = link->priv; wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND); if (link->open) netif_device_detach(dev); return 0; } static int wl3501_resume(struct pcmcia_device *link) { struct net_device *dev = link->priv; wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME); if (link->open) { wl3501_reset(dev); netif_device_attach(dev); } return 0; } static struct pcmcia_device_id wl3501_ids[] = { PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001), PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, wl3501_ids); static struct pcmcia_driver wl3501_driver = { .owner = THIS_MODULE, .drv = { .name = "wl3501_cs", }, .probe = wl3501_probe, .remove = wl3501_detach, .id_table = wl3501_ids, .suspend = wl3501_suspend, .resume = wl3501_resume, }; static int __init wl3501_init_module(void) { return pcmcia_register_driver(&wl3501_driver); } static void __exit wl3501_exit_module(void) { pcmcia_unregister_driver(&wl3501_driver); } module_init(wl3501_init_module); module_exit(wl3501_exit_module); MODULE_AUTHOR("Fox Chen , " "Arnaldo Carvalho de Melo ," "Gustavo Niemeyer "); MODULE_DESCRIPTION("Planet wl3501 wireless driver"); MODULE_LICENSE("GPL");