2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
7 * References used by Fox Chen while writing the original driver for 2.0.30:
9 * 1. WL24xx packet drivers (tooasm.asm)
10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
12 * 4. Linux network driver (/usr/src/linux/drivers/net)
13 * 5. ISA card driver - wl24.c
14 * 6. Linux PCMCIA skeleton driver - skeleton.c
15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24 * 173 Kbytes/s in TCP.
26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
30 #include <linux/delay.h>
31 #include <linux/types.h>
32 #include <linux/interrupt.h>
34 #include <linux/kernel.h>
35 #include <linux/module.h>
36 #include <linux/fcntl.h>
37 #include <linux/if_arp.h>
38 #include <linux/ioport.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/skbuff.h>
42 #include <linux/slab.h>
43 #include <linux/string.h>
44 #include <linux/wireless.h>
45 #include <net/cfg80211.h>
47 #include <net/iw_handler.h>
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/cisreg.h>
51 #include <pcmcia/ds.h>
54 #include <linux/uaccess.h>
59 #define slow_down_io()
62 /* For rough constant delay */
63 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
67 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
68 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
69 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
71 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
72 #define WL3501_MAX_ADHOC_TRIES 16
74 #define WL3501_RESUME 0
75 #define WL3501_SUSPEND 1
77 static int wl3501_config(struct pcmcia_device *link);
78 static void wl3501_release(struct pcmcia_device *link);
83 } iw_channel_table[] = {
85 .reg_domain = IW_REG_DOMAIN_FCC,
91 .reg_domain = IW_REG_DOMAIN_DOC,
97 .reg_domain = IW_REG_DOMAIN_ETSI,
103 .reg_domain = IW_REG_DOMAIN_SPAIN,
109 .reg_domain = IW_REG_DOMAIN_FRANCE,
115 .reg_domain = IW_REG_DOMAIN_MKK,
121 .reg_domain = IW_REG_DOMAIN_MKK1,
127 .reg_domain = IW_REG_DOMAIN_ISRAEL,
135 * iw_valid_channel - validate channel in regulatory domain
136 * @reg_comain - regulatory domain
137 * @channel - channel to validate
139 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
141 static int iw_valid_channel(int reg_domain, int channel)
145 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
146 if (reg_domain == iw_channel_table[i].reg_domain) {
147 rc = channel >= iw_channel_table[i].min &&
148 channel <= iw_channel_table[i].max;
155 * iw_default_channel - get default channel for a regulatory domain
156 * @reg_comain - regulatory domain
158 * Returns the default channel for a regulatory domain
160 static int iw_default_channel(int reg_domain)
164 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
165 if (reg_domain == iw_channel_table[i].reg_domain) {
166 rc = iw_channel_table[i].deflt;
172 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
173 struct iw_mgmt_info_element *el,
174 void *value, int len)
178 memcpy(el->data, value, len);
181 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
182 struct iw_mgmt_info_element *from)
184 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
187 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
189 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
193 * Get Ethernet MAC address.
195 * WARNING: We switch to FPAGE0 and switc back again.
196 * Making sure there is no other WL function beening called by ISR.
198 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
200 int base_addr = this->base_addr;
203 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
204 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
205 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
207 /* wait for reading EEPROM */
209 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
211 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
213 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
215 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
217 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
219 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
221 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
223 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
224 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
225 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
227 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
229 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
230 /* switch to SRAM Page 0 (for safety) */
231 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
233 /* The MAC addr should be 00:60:... */
234 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
238 * wl3501_set_to_wla - Move 'size' bytes from PC to card
239 * @dest: Card addressing space
240 * @src: PC addressing space
241 * @size: Bytes to move
243 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
245 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
248 /* switch to SRAM Page 0 */
249 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
251 /* set LMAL and LMAH */
252 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
253 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
255 /* rep out to Port A */
256 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
260 * wl3501_get_from_wla - Move 'size' bytes from card to PC
261 * @src: Card addressing space
262 * @dest: PC addressing space
263 * @size: Bytes to move
265 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
267 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
270 /* switch to SRAM Page 0 */
271 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
273 /* set LMAL and LMAH */
274 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
275 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
277 /* rep get from Port A */
278 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
282 * Get/Allocate a free Tx Data Buffer
284 * *--------------*-----------------*----------------------------------*
285 * | PLCP | MAC Header | DST SRC Data ... |
286 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
287 * *--------------*-----------------*----------------------------------*
288 * \ \- IEEE 802.11 -/ \-------------- len --------------/
289 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
291 * Return = Position in Card
293 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
295 u16 next, blk_cnt = 0, zero = 0;
296 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
299 if (full_len > this->tx_buffer_cnt * 254)
301 ret = this->tx_buffer_head;
307 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
310 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
312 this->tx_buffer_head = next;
314 /* if buffer is not enough */
315 if (!next && full_len) {
316 this->tx_buffer_head = ret;
321 this->tx_buffer_cnt -= blk_cnt;
327 * Free an allocated Tx Buffer. ptr must be correct position.
329 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
331 /* check if all space is not free */
332 if (!this->tx_buffer_head)
333 this->tx_buffer_head = ptr;
335 wl3501_set_to_wla(this, this->tx_buffer_tail,
340 this->tx_buffer_cnt++;
341 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
342 this->tx_buffer_tail = ptr;
347 static int wl3501_esbq_req_test(struct wl3501_card *this)
351 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
355 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
359 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
360 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
361 this->esbq_req_head += 4;
362 if (this->esbq_req_head >= this->esbq_req_end)
363 this->esbq_req_head = this->esbq_req_start;
366 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
370 if (wl3501_esbq_req_test(this)) {
371 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
373 wl3501_set_to_wla(this, ptr, sig, sig_size);
374 wl3501_esbq_req(this, &ptr);
381 static int wl3501_request_mib(struct wl3501_card *this, u8 index, void *bf)
383 struct wl3501_get_req sig = {
384 .sig_id = WL3501_SIG_GET_REQ,
390 spin_lock_irqsave(&this->lock, flags);
391 if (wl3501_esbq_req_test(this)) {
392 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
394 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
395 wl3501_esbq_req(this, &ptr);
396 this->sig_get_confirm.mib_status = 255;
400 spin_unlock_irqrestore(&this->lock, flags);
405 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
410 rc = wl3501_request_mib(this, index, bf);
414 rc = wait_event_interruptible(this->wait,
415 this->sig_get_confirm.mib_status != 255);
419 memcpy(bf, this->sig_get_confirm.mib_value, size);
423 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
425 struct wl3501_pwr_mgmt_req sig = {
426 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
434 spin_lock_irqsave(&this->lock, flags);
435 if (wl3501_esbq_req_test(this)) {
436 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
438 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
439 wl3501_esbq_req(this, &ptr);
440 this->sig_pwr_mgmt_confirm.status = 255;
441 spin_unlock_irqrestore(&this->lock, flags);
442 rc = wait_event_interruptible(this->wait,
443 this->sig_pwr_mgmt_confirm.status != 255);
444 printk(KERN_INFO "%s: %s status=%d\n", __func__,
445 suspend ? "suspend" : "resume",
446 this->sig_pwr_mgmt_confirm.status);
450 spin_unlock_irqrestore(&this->lock, flags);
456 * wl3501_send_pkt - Send a packet.
461 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
462 * data[6] - data[11] is Src MAC Addr)
465 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
467 u16 bf, sig_bf, next, tmplen, pktlen;
468 struct wl3501_md_req sig = {
469 .sig_id = WL3501_SIG_MD_REQ,
471 size_t sig_addr_len = sizeof(sig.addr);
472 u8 *pdata = (char *)data;
475 if (wl3501_esbq_req_test(this)) {
476 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
478 if (!sig_bf) /* No free buffer available */
480 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
482 /* No free buffer available */
483 wl3501_free_tx_buffer(this, sig_bf);
487 memcpy(&sig.addr, pdata, sig_addr_len);
488 pktlen = len - sig_addr_len;
489 pdata += sig_addr_len;
491 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
492 u8 addr4[ETH_ALEN] = {
493 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
496 wl3501_set_to_wla(this, bf + 2 +
497 offsetof(struct wl3501_tx_hdr, addr4),
498 addr4, sizeof(addr4));
499 sig.size = pktlen + 24 + 4 + 6;
500 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
501 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
507 wl3501_set_to_wla(this,
508 bf + 2 + sizeof(struct wl3501_tx_hdr),
511 wl3501_get_from_wla(this, bf, &next, sizeof(next));
514 sig.size = pktlen + 24 + 4 - 2;
517 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
518 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
524 wl3501_set_to_wla(this, bf + 2 +
525 offsetof(struct wl3501_tx_hdr, addr4),
528 wl3501_get_from_wla(this, bf, &next, sizeof(next));
539 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
541 wl3501_get_from_wla(this, bf, &next, sizeof(next));
544 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
545 wl3501_esbq_req(this, &sig_bf);
551 static int wl3501_mgmt_resync(struct wl3501_card *this)
553 struct wl3501_resync_req sig = {
554 .sig_id = WL3501_SIG_RESYNC_REQ,
557 return wl3501_esbq_exec(this, &sig, sizeof(sig));
560 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
562 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
563 WL3501_NET_TYPE_ADHOC;
566 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
568 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
569 WL3501_MGMT_CAPABILITY_IBSS;
572 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
574 struct wl3501_scan_req sig = {
575 .sig_id = WL3501_SIG_SCAN_REQ,
576 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
578 .min_chan_time = chan_time,
579 .max_chan_time = chan_time,
580 .bss_type = wl3501_fw_bss_type(this),
583 this->bss_cnt = this->join_sta_bss = 0;
584 return wl3501_esbq_exec(this, &sig, sizeof(sig));
587 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
589 struct wl3501_join_req sig = {
590 .sig_id = WL3501_SIG_JOIN_REQ,
594 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
601 memcpy(&sig.req, &this->bss_set[stas].req, sizeof(sig.req));
602 return wl3501_esbq_exec(this, &sig, sizeof(sig));
605 static int wl3501_mgmt_start(struct wl3501_card *this)
607 struct wl3501_start_req sig = {
608 .sig_id = WL3501_SIG_START_REQ,
609 .beacon_period = 400,
613 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
620 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
623 .data_rate_labels = {
624 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
625 IW_MGMT_RATE_LABEL_1MBIT,
626 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
627 IW_MGMT_RATE_LABEL_2MBIT,
630 .operational_rset = {
632 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
635 .data_rate_labels = {
636 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
637 IW_MGMT_RATE_LABEL_1MBIT,
638 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
639 IW_MGMT_RATE_LABEL_2MBIT,
644 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
649 .bss_type = wl3501_fw_bss_type(this),
650 .cap_info = wl3501_fw_cap_info(this),
653 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
654 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
655 return wl3501_esbq_exec(this, &sig, sizeof(sig));
658 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
662 struct wl3501_scan_confirm sig;
665 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
666 if (sig.status == WL3501_STATUS_SUCCESS) {
668 if ((this->net_type == IW_MODE_INFRA &&
669 (sig.req.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
670 (this->net_type == IW_MODE_ADHOC &&
671 (sig.req.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
672 this->net_type == IW_MODE_AUTO) {
673 if (!this->essid.el.len)
675 else if (this->essid.el.len == 3 &&
676 !memcmp(this->essid.essid, "ANY", 3))
678 else if (this->essid.el.len != sig.req.ssid.el.len)
680 else if (memcmp(this->essid.essid, sig.req.ssid.essid,
686 for (i = 0; i < this->bss_cnt; i++) {
687 if (ether_addr_equal_unaligned(this->bss_set[i].req.bssid,
694 if (matchflag && (i < 20)) {
695 memcpy(&this->bss_set[i].req,
696 &sig.req, sizeof(sig.req));
698 this->rssi = sig.rssi;
699 this->bss_set[i].rssi = sig.rssi;
702 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
704 this->join_sta_bss = 0;
705 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
706 if (!wl3501_mgmt_join(this, i))
708 this->join_sta_bss = i;
709 if (this->join_sta_bss == this->bss_cnt) {
710 if (this->net_type == IW_MODE_INFRA)
711 wl3501_mgmt_scan(this, 100);
714 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
715 wl3501_mgmt_start(this);
717 wl3501_mgmt_scan(this, 100);
724 * wl3501_block_interrupt - Mask interrupt from SUTRO
727 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
728 * Return: 1 if interrupt is originally enabled
730 static int wl3501_block_interrupt(struct wl3501_card *this)
732 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
733 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
734 WL3501_GCR_ENECINT));
736 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
737 return old & WL3501_GCR_ENECINT;
741 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
744 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
745 * Return: 1 if interrupt is originally enabled
747 static int wl3501_unblock_interrupt(struct wl3501_card *this)
749 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
750 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
753 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
754 return old & WL3501_GCR_ENECINT;
758 * wl3501_receive - Receive data from Receive Queue.
760 * Receive data from Receive Queue.
763 * @bf: address of host
764 * @size: size of buffer.
766 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
768 u16 next_addr, next_addr1;
772 wl3501_get_from_wla(this, this->start_seg + 2,
773 &next_addr, sizeof(next_addr));
774 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
775 wl3501_get_from_wla(this,
777 sizeof(struct wl3501_rx_hdr), data,
779 sizeof(struct wl3501_rx_hdr));
780 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
781 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
783 wl3501_get_from_wla(this,
785 sizeof(struct wl3501_rx_hdr),
790 if (size > WL3501_BLKSZ - 5) {
791 wl3501_get_from_wla(this, next_addr + 5, data,
793 size -= WL3501_BLKSZ - 5;
794 data += WL3501_BLKSZ - 5;
795 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
797 next_addr = next_addr1;
799 wl3501_get_from_wla(this, next_addr + 5, data, size);
806 static void wl3501_esbq_req_free(struct wl3501_card *this)
811 if (this->esbq_req_head == this->esbq_req_tail)
813 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
816 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
817 wl3501_free_tx_buffer(this, addr);
818 this->esbq_req_tail += 4;
819 if (this->esbq_req_tail >= this->esbq_req_end)
820 this->esbq_req_tail = this->esbq_req_start;
825 static int wl3501_esbq_confirm(struct wl3501_card *this)
829 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
833 static void wl3501_online(struct net_device *dev)
835 struct wl3501_card *this = netdev_priv(dev);
837 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
838 dev->name, this->bssid);
839 netif_wake_queue(dev);
842 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
846 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
847 this->esbq_confirm += 4;
848 if (this->esbq_confirm >= this->esbq_confirm_end)
849 this->esbq_confirm = this->esbq_confirm_start;
852 static int wl3501_mgmt_auth(struct wl3501_card *this)
854 struct wl3501_auth_req sig = {
855 .sig_id = WL3501_SIG_AUTH_REQ,
856 .type = WL3501_SYS_TYPE_OPEN,
861 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
862 return wl3501_esbq_exec(this, &sig, sizeof(sig));
865 static int wl3501_mgmt_association(struct wl3501_card *this)
867 struct wl3501_assoc_req sig = {
868 .sig_id = WL3501_SIG_ASSOC_REQ,
870 .listen_interval = 5,
871 .cap_info = this->cap_info,
875 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
876 return wl3501_esbq_exec(this, &sig, sizeof(sig));
879 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
881 struct wl3501_card *this = netdev_priv(dev);
882 struct wl3501_join_confirm sig;
885 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
886 if (sig.status == WL3501_STATUS_SUCCESS) {
887 if (this->net_type == IW_MODE_INFRA) {
888 if (this->join_sta_bss < this->bss_cnt) {
889 const int i = this->join_sta_bss;
891 this->bss_set[i].req.bssid, ETH_ALEN);
892 this->chan = this->bss_set[i].req.ds_pset.chan;
893 iw_copy_mgmt_info_element(&this->keep_essid.el,
894 &this->bss_set[i].req.ssid.el);
895 wl3501_mgmt_auth(this);
898 const int i = this->join_sta_bss;
900 memcpy(&this->bssid, &this->bss_set[i].req.bssid, ETH_ALEN);
901 this->chan = this->bss_set[i].req.ds_pset.chan;
902 iw_copy_mgmt_info_element(&this->keep_essid.el,
903 &this->bss_set[i].req.ssid.el);
908 this->join_sta_bss++;
909 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
910 if (!wl3501_mgmt_join(this, i))
912 this->join_sta_bss = i;
913 if (this->join_sta_bss == this->bss_cnt) {
914 if (this->net_type == IW_MODE_INFRA)
915 wl3501_mgmt_scan(this, 100);
918 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
919 wl3501_mgmt_start(this);
921 wl3501_mgmt_scan(this, 100);
927 static inline void wl3501_alarm_interrupt(struct net_device *dev,
928 struct wl3501_card *this)
930 if (this->net_type == IW_MODE_INFRA) {
931 printk(KERN_INFO "Wireless LAN offline\n");
932 netif_stop_queue(dev);
933 wl3501_mgmt_resync(this);
937 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
938 struct wl3501_card *this,
941 struct wl3501_md_confirm sig;
944 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
945 wl3501_free_tx_buffer(this, sig.data);
946 if (netif_queue_stopped(dev))
947 netif_wake_queue(dev);
950 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
951 struct wl3501_card *this, u16 addr)
953 struct wl3501_md_ind sig;
955 u8 rssi, addr4[ETH_ALEN];
958 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
959 this->start_seg = sig.data;
960 wl3501_get_from_wla(this,
961 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
962 &rssi, sizeof(rssi));
963 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
965 wl3501_get_from_wla(this,
967 offsetof(struct wl3501_rx_hdr, addr4),
968 &addr4, sizeof(addr4));
969 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
970 addr4[2] == 0x03 && addr4[4] == 0x00)) {
971 printk(KERN_INFO "Unsupported packet type!\n");
974 pkt_len = sig.size + 12 - 24 - 4 - 6;
976 skb = dev_alloc_skb(pkt_len + 5);
979 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
981 dev->stats.rx_dropped++;
984 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
985 skb_copy_to_linear_data(skb, (unsigned char *)&sig.addr,
987 wl3501_receive(this, skb->data, pkt_len);
988 skb_put(skb, pkt_len);
989 skb->protocol = eth_type_trans(skb, dev);
990 dev->stats.rx_packets++;
991 dev->stats.rx_bytes += skb->len;
996 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
997 u16 addr, void *sig, int size)
1000 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1001 sizeof(this->sig_get_confirm));
1002 wake_up(&this->wait);
1005 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1006 struct wl3501_card *this,
1009 struct wl3501_start_confirm sig;
1012 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1013 if (sig.status == WL3501_STATUS_SUCCESS)
1014 netif_wake_queue(dev);
1017 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1020 struct wl3501_card *this = netdev_priv(dev);
1021 struct wl3501_assoc_confirm sig;
1024 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1026 if (sig.status == WL3501_STATUS_SUCCESS)
1030 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1033 struct wl3501_auth_confirm sig;
1036 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1038 if (sig.status == WL3501_STATUS_SUCCESS)
1039 wl3501_mgmt_association(this);
1041 wl3501_mgmt_resync(this);
1044 static inline void wl3501_rx_interrupt(struct net_device *dev)
1049 struct wl3501_card *this = netdev_priv(dev);
1054 if (!wl3501_esbq_confirm(this))
1056 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1057 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1060 case WL3501_SIG_DEAUTH_IND:
1061 case WL3501_SIG_DISASSOC_IND:
1062 case WL3501_SIG_ALARM:
1063 wl3501_alarm_interrupt(dev, this);
1065 case WL3501_SIG_MD_CONFIRM:
1066 wl3501_md_confirm_interrupt(dev, this, addr);
1068 case WL3501_SIG_MD_IND:
1069 wl3501_md_ind_interrupt(dev, this, addr);
1071 case WL3501_SIG_GET_CONFIRM:
1072 wl3501_get_confirm_interrupt(this, addr,
1073 &this->sig_get_confirm,
1074 sizeof(this->sig_get_confirm));
1076 case WL3501_SIG_PWR_MGMT_CONFIRM:
1077 wl3501_get_confirm_interrupt(this, addr,
1078 &this->sig_pwr_mgmt_confirm,
1079 sizeof(this->sig_pwr_mgmt_confirm));
1081 case WL3501_SIG_START_CONFIRM:
1082 wl3501_start_confirm_interrupt(dev, this, addr);
1084 case WL3501_SIG_SCAN_CONFIRM:
1085 wl3501_mgmt_scan_confirm(this, addr);
1087 case WL3501_SIG_JOIN_CONFIRM:
1088 wl3501_mgmt_join_confirm(dev, addr);
1090 case WL3501_SIG_ASSOC_CONFIRM:
1091 wl3501_assoc_confirm_interrupt(dev, addr);
1093 case WL3501_SIG_AUTH_CONFIRM:
1094 wl3501_auth_confirm_interrupt(this, addr);
1096 case WL3501_SIG_RESYNC_CONFIRM:
1097 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1100 wl3501_esbq_confirm_done(this);
1102 /* free request if necessary */
1104 wl3501_esbq_req_free(this);
1109 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1111 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1115 * wl3501_interrupt - Hardware interrupt from card.
1116 * @irq - Interrupt number
1117 * @dev_id - net_device
1119 * We must acknowledge the interrupt as soon as possible, and block the
1120 * interrupt from the same card immediately to prevent re-entry.
1122 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1123 * On the other hand, to prevent SUTRO from malfunctioning, we must
1124 * unlock the SUTRO as soon as possible.
1126 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1128 struct net_device *dev = dev_id;
1129 struct wl3501_card *this;
1131 this = netdev_priv(dev);
1132 spin_lock(&this->lock);
1133 wl3501_ack_interrupt(this);
1134 wl3501_block_interrupt(this);
1135 wl3501_rx_interrupt(dev);
1136 wl3501_unblock_interrupt(this);
1137 spin_unlock(&this->lock);
1142 static int wl3501_reset_board(struct wl3501_card *this)
1148 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1149 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1150 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1152 /* Reset SRAM 0x480 to zero */
1153 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1156 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1158 WL3501_NOPLOOP(1024 * 50);
1160 wl3501_unblock_interrupt(this); /* acme: was commented */
1162 /* Polling Self_Test_Status */
1163 for (i = 0; i < 10000; i++) {
1164 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1167 /* firmware complete all test successfully */
1169 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1174 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1180 static int wl3501_init_firmware(struct wl3501_card *this)
1183 int rc = wl3501_reset_board(this);
1187 this->card_name[0] = '\0';
1188 wl3501_get_from_wla(this, 0x1a00,
1189 this->card_name, sizeof(this->card_name));
1190 this->card_name[sizeof(this->card_name) - 1] = '\0';
1191 this->firmware_date[0] = '\0';
1192 wl3501_get_from_wla(this, 0x1a40,
1193 this->firmware_date, sizeof(this->firmware_date));
1194 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1195 /* Switch to SRAM Page 0 */
1196 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1197 /* Read parameter from card */
1198 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1199 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1200 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1201 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1202 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1203 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1204 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1205 this->esbq_req_end += this->esbq_req_start;
1206 this->esbq_confirm = this->esbq_confirm_start;
1207 this->esbq_confirm_end += this->esbq_confirm_start;
1208 /* Initial Tx Buffer */
1209 this->tx_buffer_cnt = 1;
1210 ptr = this->tx_buffer_head;
1211 next = ptr + WL3501_BLKSZ;
1212 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1213 this->tx_buffer_cnt++;
1214 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1216 next = ptr + WL3501_BLKSZ;
1220 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1221 this->tx_buffer_tail = ptr;
1225 printk(KERN_WARNING "%s: failed!\n", __func__);
1229 static int wl3501_close(struct net_device *dev)
1231 struct wl3501_card *this = netdev_priv(dev);
1233 unsigned long flags;
1234 struct pcmcia_device *link;
1237 spin_lock_irqsave(&this->lock, flags);
1240 /* Stop wl3501_hard_start_xmit() from now on */
1241 netif_stop_queue(dev);
1242 wl3501_ack_interrupt(this);
1244 /* Mask interrupts from the SUTRO */
1245 wl3501_block_interrupt(this);
1248 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1249 spin_unlock_irqrestore(&this->lock, flags);
1254 * wl3501_reset - Reset the SUTRO.
1255 * @dev - network device
1257 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1258 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1259 * is running. It seems to be dangerous.
1261 static int wl3501_reset(struct net_device *dev)
1263 struct wl3501_card *this = netdev_priv(dev);
1265 unsigned long flags;
1267 spin_lock_irqsave(&this->lock, flags);
1268 wl3501_block_interrupt(this);
1270 if (wl3501_init_firmware(this)) {
1271 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1273 /* Free IRQ, and mark IRQ as unused */
1274 free_irq(dev->irq, dev);
1279 * Queue has to be started only when the Card is Started
1281 netif_stop_queue(dev);
1282 this->adhoc_times = 0;
1283 wl3501_ack_interrupt(this);
1284 wl3501_unblock_interrupt(this);
1285 wl3501_mgmt_scan(this, 100);
1286 pr_debug("%s: device reset", dev->name);
1289 spin_unlock_irqrestore(&this->lock, flags);
1293 static void wl3501_tx_timeout(struct net_device *dev)
1295 struct net_device_stats *stats = &dev->stats;
1299 rc = wl3501_reset(dev);
1301 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1304 netif_trans_update(dev); /* prevent tx timeout */
1305 netif_wake_queue(dev);
1311 * 1 - Could not transmit (dev_queue_xmit will queue it)
1312 * and try to sent it later
1314 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1315 struct net_device *dev)
1318 struct wl3501_card *this = netdev_priv(dev);
1319 unsigned long flags;
1321 spin_lock_irqsave(&this->lock, flags);
1322 enabled = wl3501_block_interrupt(this);
1323 rc = wl3501_send_pkt(this, skb->data, skb->len);
1325 wl3501_unblock_interrupt(this);
1327 ++dev->stats.tx_dropped;
1328 netif_stop_queue(dev);
1330 ++dev->stats.tx_packets;
1331 dev->stats.tx_bytes += skb->len;
1334 if (this->tx_buffer_cnt < 2)
1335 netif_stop_queue(dev);
1337 spin_unlock_irqrestore(&this->lock, flags);
1338 return NETDEV_TX_OK;
1341 static int wl3501_open(struct net_device *dev)
1344 struct wl3501_card *this = netdev_priv(dev);
1345 unsigned long flags;
1346 struct pcmcia_device *link;
1349 spin_lock_irqsave(&this->lock, flags);
1350 if (!pcmcia_dev_present(link))
1352 netif_device_attach(dev);
1355 /* Initial WL3501 firmware */
1356 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1357 if (wl3501_init_firmware(this))
1359 /* Initial device variables */
1360 this->adhoc_times = 0;
1361 /* Acknowledge Interrupt, for cleaning last state */
1362 wl3501_ack_interrupt(this);
1364 /* Enable interrupt from card after all */
1365 wl3501_unblock_interrupt(this);
1366 wl3501_mgmt_scan(this, 100);
1368 pr_debug("%s: WL3501 opened", dev->name);
1369 printk(KERN_INFO "%s: Card Name: %s\n"
1370 "%s: Firmware Date: %s\n",
1371 dev->name, this->card_name,
1372 dev->name, this->firmware_date);
1374 spin_unlock_irqrestore(&this->lock, flags);
1377 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1381 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1383 struct wl3501_card *this = netdev_priv(dev);
1384 struct iw_statistics *wstats = &this->wstats;
1385 u32 value; /* size checked: it is u32 */
1387 memset(wstats, 0, sizeof(*wstats));
1388 wstats->status = netif_running(dev);
1389 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1390 &value, sizeof(value)))
1391 wstats->discard.code += value;
1392 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1393 &value, sizeof(value)))
1394 wstats->discard.code += value;
1395 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1396 &value, sizeof(value)))
1397 wstats->discard.code += value;
1398 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1399 &value, sizeof(value)))
1400 wstats->discard.retries = value;
1401 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1402 &value, sizeof(value)))
1403 wstats->discard.misc += value;
1404 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1405 &value, sizeof(value)))
1406 wstats->discard.misc += value;
1407 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1408 &value, sizeof(value)))
1409 wstats->discard.misc += value;
1410 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1411 &value, sizeof(value)))
1412 wstats->discard.misc += value;
1417 * wl3501_detach - deletes a driver "instance"
1420 * This deletes a driver "instance". The device is de-registered with Card
1421 * Services. If it has been released, all local data structures are freed.
1422 * Otherwise, the structures will be freed when the device is released.
1424 static void wl3501_detach(struct pcmcia_device *link)
1426 struct net_device *dev = link->priv;
1428 /* If the device is currently configured and active, we won't actually
1429 * delete it yet. Instead, it is marked so that when the release()
1430 * function is called, that will trigger a proper detach(). */
1432 while (link->open > 0)
1435 netif_device_detach(dev);
1436 wl3501_release(link);
1438 unregister_netdev(dev);
1441 free_netdev(link->priv);
1444 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1445 union iwreq_data *wrqu, char *extra)
1447 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1451 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1452 union iwreq_data *wrqu, char *extra)
1454 struct wl3501_card *this = netdev_priv(dev);
1455 int channel = wrqu->freq.m;
1458 if (iw_valid_channel(this->reg_domain, channel)) {
1459 this->chan = channel;
1460 rc = wl3501_reset(dev);
1465 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1466 union iwreq_data *wrqu, char *extra)
1468 struct wl3501_card *this = netdev_priv(dev);
1470 wrqu->freq.m = 100000 *
1471 ieee80211_channel_to_frequency(this->chan, NL80211_BAND_2GHZ);
1476 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1477 union iwreq_data *wrqu, char *extra)
1481 if (wrqu->mode == IW_MODE_INFRA ||
1482 wrqu->mode == IW_MODE_ADHOC ||
1483 wrqu->mode == IW_MODE_AUTO) {
1484 struct wl3501_card *this = netdev_priv(dev);
1486 this->net_type = wrqu->mode;
1487 rc = wl3501_reset(dev);
1492 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1493 union iwreq_data *wrqu, char *extra)
1495 struct wl3501_card *this = netdev_priv(dev);
1497 wrqu->mode = this->net_type;
1501 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1502 union iwreq_data *wrqu, char *extra)
1504 struct wl3501_card *this = netdev_priv(dev);
1506 wrqu->sens.value = this->rssi;
1507 wrqu->sens.disabled = !wrqu->sens.value;
1508 wrqu->sens.fixed = 1;
1512 static int wl3501_get_range(struct net_device *dev,
1513 struct iw_request_info *info,
1514 union iwreq_data *wrqu, char *extra)
1516 struct iw_range *range = (struct iw_range *)extra;
1518 /* Set the length (very important for backward compatibility) */
1519 wrqu->data.length = sizeof(*range);
1521 /* Set all the info we don't care or don't know about to zero */
1522 memset(range, 0, sizeof(*range));
1524 /* Set the Wireless Extension versions */
1525 range->we_version_compiled = WIRELESS_EXT;
1526 range->we_version_source = 1;
1527 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1528 /* FIXME: study the code to fill in more fields... */
1532 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1533 union iwreq_data *wrqu, char *extra)
1535 struct wl3501_card *this = netdev_priv(dev);
1538 /* FIXME: we support other ARPHRDs...*/
1539 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1541 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
1542 /* FIXME: rescan? */
1544 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1545 /* FIXME: rescan? deassoc & scan? */
1551 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1552 union iwreq_data *wrqu, char *extra)
1554 struct wl3501_card *this = netdev_priv(dev);
1556 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1557 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1561 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1562 union iwreq_data *wrqu, char *extra)
1565 * FIXME: trigger scanning with a reset, yes, I'm lazy
1567 return wl3501_reset(dev);
1570 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1571 union iwreq_data *wrqu, char *extra)
1573 struct wl3501_card *this = netdev_priv(dev);
1575 char *current_ev = extra;
1576 struct iw_event iwe;
1578 for (i = 0; i < this->bss_cnt; ++i) {
1579 iwe.cmd = SIOCGIWAP;
1580 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1581 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].req.bssid, ETH_ALEN);
1582 current_ev = iwe_stream_add_event(info, current_ev,
1583 extra + IW_SCAN_MAX_DATA,
1584 &iwe, IW_EV_ADDR_LEN);
1585 iwe.cmd = SIOCGIWESSID;
1586 iwe.u.data.flags = 1;
1587 iwe.u.data.length = this->bss_set[i].req.ssid.el.len;
1588 current_ev = iwe_stream_add_point(info, current_ev,
1589 extra + IW_SCAN_MAX_DATA,
1591 this->bss_set[i].req.ssid.essid);
1592 iwe.cmd = SIOCGIWMODE;
1593 iwe.u.mode = this->bss_set[i].req.bss_type;
1594 current_ev = iwe_stream_add_event(info, current_ev,
1595 extra + IW_SCAN_MAX_DATA,
1596 &iwe, IW_EV_UINT_LEN);
1597 iwe.cmd = SIOCGIWFREQ;
1598 iwe.u.freq.m = this->bss_set[i].req.ds_pset.chan;
1600 current_ev = iwe_stream_add_event(info, current_ev,
1601 extra + IW_SCAN_MAX_DATA,
1602 &iwe, IW_EV_FREQ_LEN);
1603 iwe.cmd = SIOCGIWENCODE;
1604 if (this->bss_set[i].req.cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1605 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1607 iwe.u.data.flags = IW_ENCODE_DISABLED;
1608 iwe.u.data.length = 0;
1609 current_ev = iwe_stream_add_point(info, current_ev,
1610 extra + IW_SCAN_MAX_DATA,
1613 /* Length of data */
1614 wrqu->data.length = (current_ev - extra);
1615 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1619 static int wl3501_set_essid(struct net_device *dev,
1620 struct iw_request_info *info,
1621 union iwreq_data *wrqu, char *extra)
1623 struct wl3501_card *this = netdev_priv(dev);
1625 if (wrqu->data.flags) {
1626 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1628 extra, wrqu->data.length);
1629 } else { /* We accept any ESSID */
1630 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1631 &this->essid.el, "ANY", 3);
1633 return wl3501_reset(dev);
1636 static int wl3501_get_essid(struct net_device *dev,
1637 struct iw_request_info *info,
1638 union iwreq_data *wrqu, char *extra)
1640 struct wl3501_card *this = netdev_priv(dev);
1641 unsigned long flags;
1643 spin_lock_irqsave(&this->lock, flags);
1644 wrqu->essid.flags = 1;
1645 wrqu->essid.length = this->essid.el.len;
1646 memcpy(extra, this->essid.essid, this->essid.el.len);
1647 spin_unlock_irqrestore(&this->lock, flags);
1651 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1652 union iwreq_data *wrqu, char *extra)
1654 struct wl3501_card *this = netdev_priv(dev);
1656 if (wrqu->data.length > sizeof(this->nick))
1658 strlcpy(this->nick, extra, wrqu->data.length);
1662 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1663 union iwreq_data *wrqu, char *extra)
1665 struct wl3501_card *this = netdev_priv(dev);
1667 strlcpy(extra, this->nick, 32);
1668 wrqu->data.length = strlen(extra);
1672 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1673 union iwreq_data *wrqu, char *extra)
1676 * FIXME: have to see from where to get this info, perhaps this card
1677 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1678 * common with the Planet Access Points. -acme
1680 wrqu->bitrate.value = 2000000;
1681 wrqu->bitrate.fixed = 1;
1685 static int wl3501_get_rts_threshold(struct net_device *dev,
1686 struct iw_request_info *info,
1687 union iwreq_data *wrqu, char *extra)
1689 u16 threshold; /* size checked: it is u16 */
1690 struct wl3501_card *this = netdev_priv(dev);
1691 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1692 &threshold, sizeof(threshold));
1694 wrqu->rts.value = threshold;
1695 wrqu->rts.disabled = threshold >= 2347;
1696 wrqu->rts.fixed = 1;
1701 static int wl3501_get_frag_threshold(struct net_device *dev,
1702 struct iw_request_info *info,
1703 union iwreq_data *wrqu, char *extra)
1705 u16 threshold; /* size checked: it is u16 */
1706 struct wl3501_card *this = netdev_priv(dev);
1707 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1708 &threshold, sizeof(threshold));
1710 wrqu->frag.value = threshold;
1711 wrqu->frag.disabled = threshold >= 2346;
1712 wrqu->frag.fixed = 1;
1717 static int wl3501_get_txpow(struct net_device *dev,
1718 struct iw_request_info *info,
1719 union iwreq_data *wrqu, char *extra)
1722 struct wl3501_card *this = netdev_priv(dev);
1723 int rc = wl3501_get_mib_value(this,
1724 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1725 &txpow, sizeof(txpow));
1727 wrqu->txpower.value = txpow;
1728 wrqu->txpower.disabled = 0;
1730 * From the MIB values I think this can be configurable,
1731 * as it lists several tx power levels -acme
1733 wrqu->txpower.fixed = 0;
1734 wrqu->txpower.flags = IW_TXPOW_MWATT;
1739 static int wl3501_get_retry(struct net_device *dev,
1740 struct iw_request_info *info,
1741 union iwreq_data *wrqu, char *extra)
1743 u8 retry; /* size checked: it is u8 */
1744 struct wl3501_card *this = netdev_priv(dev);
1745 int rc = wl3501_get_mib_value(this,
1746 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1747 &retry, sizeof(retry));
1750 if (wrqu->retry.flags & IW_RETRY_LONG) {
1751 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1754 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1755 &retry, sizeof(retry));
1758 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1760 wrqu->retry.value = retry;
1761 wrqu->retry.disabled = 0;
1766 static int wl3501_get_encode(struct net_device *dev,
1767 struct iw_request_info *info,
1768 union iwreq_data *wrqu, char *extra)
1770 u8 implemented, restricted, keys[100], len_keys, tocopy;
1771 struct wl3501_card *this = netdev_priv(dev);
1772 int rc = wl3501_get_mib_value(this,
1773 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1774 &implemented, sizeof(implemented));
1778 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1781 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1782 &restricted, sizeof(restricted));
1785 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1787 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1788 &len_keys, sizeof(len_keys));
1791 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1795 tocopy = min_t(u16, len_keys, wrqu->encoding.length);
1796 tocopy = min_t(u8, tocopy, 100);
1797 wrqu->encoding.length = tocopy;
1798 memcpy(extra, keys, tocopy);
1803 static int wl3501_get_power(struct net_device *dev,
1804 struct iw_request_info *info,
1805 union iwreq_data *wrqu, char *extra)
1808 struct wl3501_card *this = netdev_priv(dev);
1809 int rc = wl3501_get_mib_value(this,
1810 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1811 &pwr_state, sizeof(pwr_state));
1814 wrqu->power.disabled = !pwr_state;
1815 wrqu->power.flags = IW_POWER_ON;
1820 static const iw_handler wl3501_handler[] = {
1821 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1822 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1823 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1824 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1825 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1826 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1827 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1828 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1829 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1830 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1831 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1832 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1833 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1834 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1835 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1836 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1837 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1838 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1839 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1840 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1841 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1842 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1843 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1844 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1845 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1846 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1849 static const struct iw_handler_def wl3501_handler_def = {
1850 .num_standard = ARRAY_SIZE(wl3501_handler),
1851 .standard = (iw_handler *)wl3501_handler,
1852 .get_wireless_stats = wl3501_get_wireless_stats,
1855 static const struct net_device_ops wl3501_netdev_ops = {
1856 .ndo_open = wl3501_open,
1857 .ndo_stop = wl3501_close,
1858 .ndo_start_xmit = wl3501_hard_start_xmit,
1859 .ndo_tx_timeout = wl3501_tx_timeout,
1860 .ndo_set_mac_address = eth_mac_addr,
1861 .ndo_validate_addr = eth_validate_addr,
1864 static int wl3501_probe(struct pcmcia_device *p_dev)
1866 struct net_device *dev;
1867 struct wl3501_card *this;
1869 /* The io structure describes IO port mapping */
1870 p_dev->resource[0]->end = 16;
1871 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1873 /* General socket configuration */
1874 p_dev->config_flags = CONF_ENABLE_IRQ;
1875 p_dev->config_index = 1;
1877 dev = alloc_etherdev(sizeof(struct wl3501_card));
1882 dev->netdev_ops = &wl3501_netdev_ops;
1883 dev->watchdog_timeo = 5 * HZ;
1885 this = netdev_priv(dev);
1886 this->wireless_data.spy_data = &this->spy_data;
1887 this->p_dev = p_dev;
1888 dev->wireless_data = &this->wireless_data;
1889 dev->wireless_handlers = &wl3501_handler_def;
1890 netif_stop_queue(dev);
1893 return wl3501_config(p_dev);
1898 static int wl3501_config(struct pcmcia_device *link)
1900 struct net_device *dev = link->priv;
1902 struct wl3501_card *this;
1904 /* Try allocating IO ports. This tries a few fixed addresses. If you
1905 * want, you can also read the card's config table to pick addresses --
1906 * see the serial driver for an example. */
1909 for (j = 0x280; j < 0x400; j += 0x20) {
1910 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1911 * 0x200-0x2ff, and so on, because this seems safer */
1912 link->resource[0]->start = j;
1913 link->resource[1]->start = link->resource[0]->start + 0x10;
1914 i = pcmcia_request_io(link);
1921 /* Now allocate an interrupt line. Note that this does not actually
1922 * assign a handler to the interrupt. */
1924 ret = pcmcia_request_irq(link, wl3501_interrupt);
1928 ret = pcmcia_enable_device(link);
1932 dev->irq = link->irq;
1933 dev->base_addr = link->resource[0]->start;
1934 SET_NETDEV_DEV(dev, &link->dev);
1935 if (register_netdev(dev)) {
1936 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1940 this = netdev_priv(dev);
1942 this->base_addr = dev->base_addr;
1944 if (!wl3501_get_flash_mac_addr(this)) {
1945 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
1947 unregister_netdev(dev);
1951 for (i = 0; i < 6; i++)
1952 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1954 /* print probe information */
1955 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1956 "MAC addr in flash ROM:%pM\n",
1957 dev->name, this->base_addr, (int)dev->irq,
1960 * Initialize card parameters - added by jss
1962 this->net_type = IW_MODE_INFRA;
1964 this->join_sta_bss = 0;
1965 this->adhoc_times = 0;
1966 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1968 this->card_name[0] = '\0';
1969 this->firmware_date[0] = '\0';
1971 this->chan = iw_default_channel(this->reg_domain);
1972 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1973 spin_lock_init(&this->lock);
1974 init_waitqueue_head(&this->wait);
1975 netif_start_queue(dev);
1979 wl3501_release(link);
1983 static void wl3501_release(struct pcmcia_device *link)
1985 pcmcia_disable_device(link);
1988 static int wl3501_suspend(struct pcmcia_device *link)
1990 struct net_device *dev = link->priv;
1992 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
1994 netif_device_detach(dev);
1999 static int wl3501_resume(struct pcmcia_device *link)
2001 struct net_device *dev = link->priv;
2003 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
2006 netif_device_attach(dev);
2013 static const struct pcmcia_device_id wl3501_ids[] = {
2014 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2017 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2019 static struct pcmcia_driver wl3501_driver = {
2020 .owner = THIS_MODULE,
2021 .name = "wl3501_cs",
2022 .probe = wl3501_probe,
2023 .remove = wl3501_detach,
2024 .id_table = wl3501_ids,
2025 .suspend = wl3501_suspend,
2026 .resume = wl3501_resume,
2028 module_pcmcia_driver(wl3501_driver);
2030 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2031 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2032 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2033 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2034 MODULE_LICENSE("GPL");