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/ethtool.h>
33 #include <linux/init.h>
34 #include <linux/interrupt.h>
36 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/fcntl.h>
39 #include <linux/if_arp.h>
40 #include <linux/ioport.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/skbuff.h>
44 #include <linux/slab.h>
45 #include <linux/string.h>
46 #include <linux/wireless.h>
47 #include <linux/ieee80211.h>
49 #include <net/iw_handler.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
57 #include <asm/uaccess.h>
58 #include <asm/system.h>
63 #define slow_down_io()
66 /* For rough constant delay */
67 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
71 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
72 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
73 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
75 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
76 #define WL3501_MAX_ADHOC_TRIES 16
78 #define WL3501_RESUME 0
79 #define WL3501_SUSPEND 1
82 * The event() function is this driver's Card Services event handler. It will
83 * be called by Card Services when an appropriate card status event is
84 * received. The config() and release() entry points are used to configure or
85 * release a socket, in response to card insertion and ejection events. They
86 * are invoked from the wl24 event handler.
88 static int wl3501_config(struct pcmcia_device *link);
89 static void wl3501_release(struct pcmcia_device *link);
94 } iw_channel_table[] = {
96 .reg_domain = IW_REG_DOMAIN_FCC,
102 .reg_domain = IW_REG_DOMAIN_DOC,
108 .reg_domain = IW_REG_DOMAIN_ETSI,
114 .reg_domain = IW_REG_DOMAIN_SPAIN,
120 .reg_domain = IW_REG_DOMAIN_FRANCE,
126 .reg_domain = IW_REG_DOMAIN_MKK,
132 .reg_domain = IW_REG_DOMAIN_MKK1,
138 .reg_domain = IW_REG_DOMAIN_ISRAEL,
146 * iw_valid_channel - validate channel in regulatory domain
147 * @reg_comain - regulatory domain
148 * @channel - channel to validate
150 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
152 static int iw_valid_channel(int reg_domain, int channel)
156 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
157 if (reg_domain == iw_channel_table[i].reg_domain) {
158 rc = channel >= iw_channel_table[i].min &&
159 channel <= iw_channel_table[i].max;
166 * iw_default_channel - get default channel for a regulatory domain
167 * @reg_comain - regulatory domain
169 * Returns the default channel for a regulatory domain
171 static int iw_default_channel(int reg_domain)
175 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
176 if (reg_domain == iw_channel_table[i].reg_domain) {
177 rc = iw_channel_table[i].deflt;
183 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
184 struct iw_mgmt_info_element *el,
185 void *value, int len)
189 memcpy(el->data, value, len);
192 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
193 struct iw_mgmt_info_element *from)
195 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
198 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
200 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
204 * Get Ethernet MAC addresss.
206 * WARNING: We switch to FPAGE0 and switc back again.
207 * Making sure there is no other WL function beening called by ISR.
209 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
211 int base_addr = this->base_addr;
214 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
215 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
216 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
218 /* wait for reading EEPROM */
220 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
222 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
224 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
226 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
228 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
230 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
232 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
234 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
235 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
236 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
238 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
240 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
241 /* switch to SRAM Page 0 (for safety) */
242 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
244 /* The MAC addr should be 00:60:... */
245 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
249 * wl3501_set_to_wla - Move 'size' bytes from PC to card
250 * @dest: Card addressing space
251 * @src: PC addressing space
252 * @size: Bytes to move
254 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
256 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
259 /* switch to SRAM Page 0 */
260 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
262 /* set LMAL and LMAH */
263 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
264 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
266 /* rep out to Port A */
267 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
271 * wl3501_get_from_wla - Move 'size' bytes from card to PC
272 * @src: Card addressing space
273 * @dest: PC addressing space
274 * @size: Bytes to move
276 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
278 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
281 /* switch to SRAM Page 0 */
282 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
284 /* set LMAL and LMAH */
285 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
286 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
288 /* rep get from Port A */
289 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
293 * Get/Allocate a free Tx Data Buffer
295 * *--------------*-----------------*----------------------------------*
296 * | PLCP | MAC Header | DST SRC Data ... |
297 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
298 * *--------------*-----------------*----------------------------------*
299 * \ \- IEEE 802.11 -/ \-------------- len --------------/
300 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
302 * Return = Postion in Card
304 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
306 u16 next, blk_cnt = 0, zero = 0;
307 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
310 if (full_len > this->tx_buffer_cnt * 254)
312 ret = this->tx_buffer_head;
318 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
321 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
323 this->tx_buffer_head = next;
325 /* if buffer is not enough */
326 if (!next && full_len) {
327 this->tx_buffer_head = ret;
332 this->tx_buffer_cnt -= blk_cnt;
338 * Free an allocated Tx Buffer. ptr must be correct position.
340 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
342 /* check if all space is not free */
343 if (!this->tx_buffer_head)
344 this->tx_buffer_head = ptr;
346 wl3501_set_to_wla(this, this->tx_buffer_tail,
351 this->tx_buffer_cnt++;
352 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
353 this->tx_buffer_tail = ptr;
358 static int wl3501_esbq_req_test(struct wl3501_card *this)
362 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
366 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
370 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
371 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
372 this->esbq_req_head += 4;
373 if (this->esbq_req_head >= this->esbq_req_end)
374 this->esbq_req_head = this->esbq_req_start;
377 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
381 if (wl3501_esbq_req_test(this)) {
382 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
384 wl3501_set_to_wla(this, ptr, sig, sig_size);
385 wl3501_esbq_req(this, &ptr);
392 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
395 struct wl3501_get_req sig = {
396 .sig_id = WL3501_SIG_GET_REQ,
402 spin_lock_irqsave(&this->lock, flags);
403 if (wl3501_esbq_req_test(this)) {
404 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
406 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
407 wl3501_esbq_req(this, &ptr);
408 this->sig_get_confirm.mib_status = 255;
409 spin_unlock_irqrestore(&this->lock, flags);
410 rc = wait_event_interruptible(this->wait,
411 this->sig_get_confirm.mib_status != 255);
413 memcpy(bf, this->sig_get_confirm.mib_value,
418 spin_unlock_irqrestore(&this->lock, flags);
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 u8 *pdata = (char *)data;
474 if (wl3501_esbq_req_test(this)) {
475 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
477 if (!sig_bf) /* No free buffer available */
479 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
481 /* No free buffer available */
482 wl3501_free_tx_buffer(this, sig_bf);
486 memcpy(&sig.daddr[0], pdata, 12);
490 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
491 u8 addr4[ETH_ALEN] = {
492 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
495 wl3501_set_to_wla(this, bf + 2 +
496 offsetof(struct wl3501_tx_hdr, addr4),
497 addr4, sizeof(addr4));
498 sig.size = pktlen + 24 + 4 + 6;
499 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
500 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
506 wl3501_set_to_wla(this,
507 bf + 2 + sizeof(struct wl3501_tx_hdr),
510 wl3501_get_from_wla(this, bf, &next, sizeof(next));
513 sig.size = pktlen + 24 + 4 - 2;
516 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
517 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
523 wl3501_set_to_wla(this, bf + 2 +
524 offsetof(struct wl3501_tx_hdr, addr4),
527 wl3501_get_from_wla(this, bf, &next, sizeof(next));
538 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
540 wl3501_get_from_wla(this, bf, &next, sizeof(next));
543 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
544 wl3501_esbq_req(this, &sig_bf);
550 static int wl3501_mgmt_resync(struct wl3501_card *this)
552 struct wl3501_resync_req sig = {
553 .sig_id = WL3501_SIG_RESYNC_REQ,
556 return wl3501_esbq_exec(this, &sig, sizeof(sig));
559 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
561 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
562 WL3501_NET_TYPE_ADHOC;
565 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
567 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
568 WL3501_MGMT_CAPABILITY_IBSS;
571 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
573 struct wl3501_scan_req sig = {
574 .sig_id = WL3501_SIG_SCAN_REQ,
575 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
577 .min_chan_time = chan_time,
578 .max_chan_time = chan_time,
579 .bss_type = wl3501_fw_bss_type(this),
582 this->bss_cnt = this->join_sta_bss = 0;
583 return wl3501_esbq_exec(this, &sig, sizeof(sig));
586 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
588 struct wl3501_join_req sig = {
589 .sig_id = WL3501_SIG_JOIN_REQ,
593 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
600 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
601 return wl3501_esbq_exec(this, &sig, sizeof(sig));
604 static int wl3501_mgmt_start(struct wl3501_card *this)
606 struct wl3501_start_req sig = {
607 .sig_id = WL3501_SIG_START_REQ,
608 .beacon_period = 400,
612 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
619 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
622 .data_rate_labels = {
623 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
624 IW_MGMT_RATE_LABEL_1MBIT,
625 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
626 IW_MGMT_RATE_LABEL_2MBIT,
629 .operational_rset = {
631 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
634 .data_rate_labels = {
635 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
636 IW_MGMT_RATE_LABEL_1MBIT,
637 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
638 IW_MGMT_RATE_LABEL_2MBIT,
643 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
648 .bss_type = wl3501_fw_bss_type(this),
649 .cap_info = wl3501_fw_cap_info(this),
652 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
653 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
654 return wl3501_esbq_exec(this, &sig, sizeof(sig));
657 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
661 struct wl3501_scan_confirm sig;
664 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
665 if (sig.status == WL3501_STATUS_SUCCESS) {
667 if ((this->net_type == IW_MODE_INFRA &&
668 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
669 (this->net_type == IW_MODE_ADHOC &&
670 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
671 this->net_type == IW_MODE_AUTO) {
672 if (!this->essid.el.len)
674 else if (this->essid.el.len == 3 &&
675 !memcmp(this->essid.essid, "ANY", 3))
677 else if (this->essid.el.len != sig.ssid.el.len)
679 else if (memcmp(this->essid.essid, sig.ssid.essid,
685 for (i = 0; i < this->bss_cnt; i++) {
686 if (!memcmp(this->bss_set[i].bssid,
687 sig.bssid, ETH_ALEN)) {
693 if (matchflag && (i < 20)) {
694 memcpy(&this->bss_set[i].beacon_period,
695 &sig.beacon_period, 73);
697 this->rssi = sig.rssi;
700 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
702 this->join_sta_bss = 0;
703 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
704 if (!wl3501_mgmt_join(this, i))
706 this->join_sta_bss = i;
707 if (this->join_sta_bss == this->bss_cnt) {
708 if (this->net_type == IW_MODE_INFRA)
709 wl3501_mgmt_scan(this, 100);
712 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
713 wl3501_mgmt_start(this);
715 wl3501_mgmt_scan(this, 100);
722 * wl3501_block_interrupt - Mask interrupt from SUTRO
725 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
726 * Return: 1 if interrupt is originally enabled
728 static int wl3501_block_interrupt(struct wl3501_card *this)
730 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
731 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
732 WL3501_GCR_ENECINT));
734 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
735 return old & WL3501_GCR_ENECINT;
739 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
742 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
743 * Return: 1 if interrupt is originally enabled
745 static int wl3501_unblock_interrupt(struct wl3501_card *this)
747 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
748 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
751 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
752 return old & WL3501_GCR_ENECINT;
756 * wl3501_receive - Receive data from Receive Queue.
758 * Receive data from Receive Queue.
761 * @bf: address of host
762 * @size: size of buffer.
764 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
766 u16 next_addr, next_addr1;
770 wl3501_get_from_wla(this, this->start_seg + 2,
771 &next_addr, sizeof(next_addr));
772 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
773 wl3501_get_from_wla(this,
775 sizeof(struct wl3501_rx_hdr), data,
777 sizeof(struct wl3501_rx_hdr));
778 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
779 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
781 wl3501_get_from_wla(this,
783 sizeof(struct wl3501_rx_hdr),
788 if (size > WL3501_BLKSZ - 5) {
789 wl3501_get_from_wla(this, next_addr + 5, data,
791 size -= WL3501_BLKSZ - 5;
792 data += WL3501_BLKSZ - 5;
793 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
795 next_addr = next_addr1;
797 wl3501_get_from_wla(this, next_addr + 5, data, size);
804 static void wl3501_esbq_req_free(struct wl3501_card *this)
809 if (this->esbq_req_head == this->esbq_req_tail)
811 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
814 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
815 wl3501_free_tx_buffer(this, addr);
816 this->esbq_req_tail += 4;
817 if (this->esbq_req_tail >= this->esbq_req_end)
818 this->esbq_req_tail = this->esbq_req_start;
823 static int wl3501_esbq_confirm(struct wl3501_card *this)
827 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
831 static void wl3501_online(struct net_device *dev)
833 struct wl3501_card *this = netdev_priv(dev);
835 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
836 dev->name, this->bssid);
837 netif_wake_queue(dev);
840 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
844 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
845 this->esbq_confirm += 4;
846 if (this->esbq_confirm >= this->esbq_confirm_end)
847 this->esbq_confirm = this->esbq_confirm_start;
850 static int wl3501_mgmt_auth(struct wl3501_card *this)
852 struct wl3501_auth_req sig = {
853 .sig_id = WL3501_SIG_AUTH_REQ,
854 .type = WL3501_SYS_TYPE_OPEN,
859 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
860 return wl3501_esbq_exec(this, &sig, sizeof(sig));
863 static int wl3501_mgmt_association(struct wl3501_card *this)
865 struct wl3501_assoc_req sig = {
866 .sig_id = WL3501_SIG_ASSOC_REQ,
868 .listen_interval = 5,
869 .cap_info = this->cap_info,
873 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
874 return wl3501_esbq_exec(this, &sig, sizeof(sig));
877 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
879 struct wl3501_card *this = netdev_priv(dev);
880 struct wl3501_join_confirm sig;
883 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
884 if (sig.status == WL3501_STATUS_SUCCESS) {
885 if (this->net_type == IW_MODE_INFRA) {
886 if (this->join_sta_bss < this->bss_cnt) {
887 const int i = this->join_sta_bss;
889 this->bss_set[i].bssid, ETH_ALEN);
890 this->chan = this->bss_set[i].ds_pset.chan;
891 iw_copy_mgmt_info_element(&this->keep_essid.el,
892 &this->bss_set[i].ssid.el);
893 wl3501_mgmt_auth(this);
896 const int i = this->join_sta_bss;
898 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
899 this->chan = this->bss_set[i].ds_pset.chan;
900 iw_copy_mgmt_info_element(&this->keep_essid.el,
901 &this->bss_set[i].ssid.el);
906 this->join_sta_bss++;
907 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
908 if (!wl3501_mgmt_join(this, i))
910 this->join_sta_bss = i;
911 if (this->join_sta_bss == this->bss_cnt) {
912 if (this->net_type == IW_MODE_INFRA)
913 wl3501_mgmt_scan(this, 100);
916 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
917 wl3501_mgmt_start(this);
919 wl3501_mgmt_scan(this, 100);
925 static inline void wl3501_alarm_interrupt(struct net_device *dev,
926 struct wl3501_card *this)
928 if (this->net_type == IW_MODE_INFRA) {
929 printk(KERN_INFO "Wireless LAN offline\n");
930 netif_stop_queue(dev);
931 wl3501_mgmt_resync(this);
935 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
936 struct wl3501_card *this,
939 struct wl3501_md_confirm sig;
942 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
943 wl3501_free_tx_buffer(this, sig.data);
944 if (netif_queue_stopped(dev))
945 netif_wake_queue(dev);
948 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
949 struct wl3501_card *this, u16 addr)
951 struct wl3501_md_ind sig;
953 u8 rssi, addr4[ETH_ALEN];
956 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
957 this->start_seg = sig.data;
958 wl3501_get_from_wla(this,
959 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
960 &rssi, sizeof(rssi));
961 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
963 wl3501_get_from_wla(this,
965 offsetof(struct wl3501_rx_hdr, addr4),
966 &addr4, sizeof(addr4));
967 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
968 addr4[2] == 0x03 && addr4[4] == 0x00)) {
969 printk(KERN_INFO "Insupported packet type!\n");
972 pkt_len = sig.size + 12 - 24 - 4 - 6;
974 skb = dev_alloc_skb(pkt_len + 5);
977 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
979 dev->stats.rx_dropped++;
982 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
983 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
984 wl3501_receive(this, skb->data, pkt_len);
985 skb_put(skb, pkt_len);
986 skb->protocol = eth_type_trans(skb, dev);
987 dev->stats.rx_packets++;
988 dev->stats.rx_bytes += skb->len;
993 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
994 u16 addr, void *sig, int size)
997 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
998 sizeof(this->sig_get_confirm));
999 wake_up(&this->wait);
1002 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1003 struct wl3501_card *this,
1006 struct wl3501_start_confirm sig;
1009 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1010 if (sig.status == WL3501_STATUS_SUCCESS)
1011 netif_wake_queue(dev);
1014 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1017 struct wl3501_card *this = netdev_priv(dev);
1018 struct wl3501_assoc_confirm sig;
1021 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1023 if (sig.status == WL3501_STATUS_SUCCESS)
1027 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1030 struct wl3501_auth_confirm sig;
1033 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1035 if (sig.status == WL3501_STATUS_SUCCESS)
1036 wl3501_mgmt_association(this);
1038 wl3501_mgmt_resync(this);
1041 static inline void wl3501_rx_interrupt(struct net_device *dev)
1046 struct wl3501_card *this = netdev_priv(dev);
1051 if (!wl3501_esbq_confirm(this))
1053 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1054 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1057 case WL3501_SIG_DEAUTH_IND:
1058 case WL3501_SIG_DISASSOC_IND:
1059 case WL3501_SIG_ALARM:
1060 wl3501_alarm_interrupt(dev, this);
1062 case WL3501_SIG_MD_CONFIRM:
1063 wl3501_md_confirm_interrupt(dev, this, addr);
1065 case WL3501_SIG_MD_IND:
1066 wl3501_md_ind_interrupt(dev, this, addr);
1068 case WL3501_SIG_GET_CONFIRM:
1069 wl3501_get_confirm_interrupt(this, addr,
1070 &this->sig_get_confirm,
1071 sizeof(this->sig_get_confirm));
1073 case WL3501_SIG_PWR_MGMT_CONFIRM:
1074 wl3501_get_confirm_interrupt(this, addr,
1075 &this->sig_pwr_mgmt_confirm,
1076 sizeof(this->sig_pwr_mgmt_confirm));
1078 case WL3501_SIG_START_CONFIRM:
1079 wl3501_start_confirm_interrupt(dev, this, addr);
1081 case WL3501_SIG_SCAN_CONFIRM:
1082 wl3501_mgmt_scan_confirm(this, addr);
1084 case WL3501_SIG_JOIN_CONFIRM:
1085 wl3501_mgmt_join_confirm(dev, addr);
1087 case WL3501_SIG_ASSOC_CONFIRM:
1088 wl3501_assoc_confirm_interrupt(dev, addr);
1090 case WL3501_SIG_AUTH_CONFIRM:
1091 wl3501_auth_confirm_interrupt(this, addr);
1093 case WL3501_SIG_RESYNC_CONFIRM:
1094 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1097 wl3501_esbq_confirm_done(this);
1099 /* free request if necessary */
1101 wl3501_esbq_req_free(this);
1106 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1108 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1112 * wl3501_interrupt - Hardware interrupt from card.
1113 * @irq - Interrupt number
1114 * @dev_id - net_device
1116 * We must acknowledge the interrupt as soon as possible, and block the
1117 * interrupt from the same card immediately to prevent re-entry.
1119 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1120 * On the other hand, to prevent SUTRO from malfunctioning, we must
1121 * unlock the SUTRO as soon as possible.
1123 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1125 struct net_device *dev = dev_id;
1126 struct wl3501_card *this;
1128 this = netdev_priv(dev);
1129 spin_lock(&this->lock);
1130 wl3501_ack_interrupt(this);
1131 wl3501_block_interrupt(this);
1132 wl3501_rx_interrupt(dev);
1133 wl3501_unblock_interrupt(this);
1134 spin_unlock(&this->lock);
1139 static int wl3501_reset_board(struct wl3501_card *this)
1145 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1146 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1147 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1149 /* Reset SRAM 0x480 to zero */
1150 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1153 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1155 WL3501_NOPLOOP(1024 * 50);
1157 wl3501_unblock_interrupt(this); /* acme: was commented */
1159 /* Polling Self_Test_Status */
1160 for (i = 0; i < 10000; i++) {
1161 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1164 /* firmware complete all test successfully */
1166 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1171 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1177 static int wl3501_init_firmware(struct wl3501_card *this)
1180 int rc = wl3501_reset_board(this);
1184 this->card_name[0] = '\0';
1185 wl3501_get_from_wla(this, 0x1a00,
1186 this->card_name, sizeof(this->card_name));
1187 this->card_name[sizeof(this->card_name) - 1] = '\0';
1188 this->firmware_date[0] = '\0';
1189 wl3501_get_from_wla(this, 0x1a40,
1190 this->firmware_date, sizeof(this->firmware_date));
1191 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1192 /* Switch to SRAM Page 0 */
1193 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1194 /* Read parameter from card */
1195 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1196 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1197 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1198 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1199 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1200 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1201 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1202 this->esbq_req_end += this->esbq_req_start;
1203 this->esbq_confirm = this->esbq_confirm_start;
1204 this->esbq_confirm_end += this->esbq_confirm_start;
1205 /* Initial Tx Buffer */
1206 this->tx_buffer_cnt = 1;
1207 ptr = this->tx_buffer_head;
1208 next = ptr + WL3501_BLKSZ;
1209 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1210 this->tx_buffer_cnt++;
1211 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1213 next = ptr + WL3501_BLKSZ;
1217 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1218 this->tx_buffer_tail = ptr;
1222 printk(KERN_WARNING "%s: failed!\n", __func__);
1226 static int wl3501_close(struct net_device *dev)
1228 struct wl3501_card *this = netdev_priv(dev);
1230 unsigned long flags;
1231 struct pcmcia_device *link;
1234 spin_lock_irqsave(&this->lock, flags);
1237 /* Stop wl3501_hard_start_xmit() from now on */
1238 netif_stop_queue(dev);
1239 wl3501_ack_interrupt(this);
1241 /* Mask interrupts from the SUTRO */
1242 wl3501_block_interrupt(this);
1245 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1246 spin_unlock_irqrestore(&this->lock, flags);
1251 * wl3501_reset - Reset the SUTRO.
1252 * @dev - network device
1254 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1255 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1256 * is running. It seems to be dangerous.
1258 static int wl3501_reset(struct net_device *dev)
1260 struct wl3501_card *this = netdev_priv(dev);
1263 wl3501_block_interrupt(this);
1265 if (wl3501_init_firmware(this)) {
1266 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1268 /* Free IRQ, and mark IRQ as unused */
1269 free_irq(dev->irq, dev);
1274 * Queue has to be started only when the Card is Started
1276 netif_stop_queue(dev);
1277 this->adhoc_times = 0;
1278 wl3501_ack_interrupt(this);
1279 wl3501_unblock_interrupt(this);
1280 wl3501_mgmt_scan(this, 100);
1281 pr_debug("%s: device reset", dev->name);
1287 static void wl3501_tx_timeout(struct net_device *dev)
1289 struct wl3501_card *this = netdev_priv(dev);
1290 struct net_device_stats *stats = &dev->stats;
1291 unsigned long flags;
1295 spin_lock_irqsave(&this->lock, flags);
1296 rc = wl3501_reset(dev);
1297 spin_unlock_irqrestore(&this->lock, flags);
1299 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1302 dev->trans_start = jiffies; /* prevent tx timeout */
1303 netif_wake_queue(dev);
1309 * 1 - Could not transmit (dev_queue_xmit will queue it)
1310 * and try to sent it later
1312 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1313 struct net_device *dev)
1316 struct wl3501_card *this = netdev_priv(dev);
1317 unsigned long flags;
1319 spin_lock_irqsave(&this->lock, flags);
1320 enabled = wl3501_block_interrupt(this);
1321 rc = wl3501_send_pkt(this, skb->data, skb->len);
1323 wl3501_unblock_interrupt(this);
1325 ++dev->stats.tx_dropped;
1326 netif_stop_queue(dev);
1328 ++dev->stats.tx_packets;
1329 dev->stats.tx_bytes += skb->len;
1332 if (this->tx_buffer_cnt < 2)
1333 netif_stop_queue(dev);
1335 spin_unlock_irqrestore(&this->lock, flags);
1336 return NETDEV_TX_OK;
1339 static int wl3501_open(struct net_device *dev)
1342 struct wl3501_card *this = netdev_priv(dev);
1343 unsigned long flags;
1344 struct pcmcia_device *link;
1347 spin_lock_irqsave(&this->lock, flags);
1348 if (!pcmcia_dev_present(link))
1350 netif_device_attach(dev);
1353 /* Initial WL3501 firmware */
1354 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1355 if (wl3501_init_firmware(this))
1357 /* Initial device variables */
1358 this->adhoc_times = 0;
1359 /* Acknowledge Interrupt, for cleaning last state */
1360 wl3501_ack_interrupt(this);
1362 /* Enable interrupt from card after all */
1363 wl3501_unblock_interrupt(this);
1364 wl3501_mgmt_scan(this, 100);
1366 pr_debug("%s: WL3501 opened", dev->name);
1367 printk(KERN_INFO "%s: Card Name: %s\n"
1368 "%s: Firmware Date: %s\n",
1369 dev->name, this->card_name,
1370 dev->name, this->firmware_date);
1372 spin_unlock_irqrestore(&this->lock, flags);
1375 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1379 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1381 struct wl3501_card *this = netdev_priv(dev);
1382 struct iw_statistics *wstats = &this->wstats;
1383 u32 value; /* size checked: it is u32 */
1385 memset(wstats, 0, sizeof(*wstats));
1386 wstats->status = netif_running(dev);
1387 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1388 &value, sizeof(value)))
1389 wstats->discard.code += value;
1390 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1391 &value, sizeof(value)))
1392 wstats->discard.code += value;
1393 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1394 &value, sizeof(value)))
1395 wstats->discard.code += value;
1396 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1397 &value, sizeof(value)))
1398 wstats->discard.retries = value;
1399 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1400 &value, sizeof(value)))
1401 wstats->discard.misc += value;
1402 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1403 &value, sizeof(value)))
1404 wstats->discard.misc += value;
1405 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1406 &value, sizeof(value)))
1407 wstats->discard.misc += value;
1408 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1409 &value, sizeof(value)))
1410 wstats->discard.misc += value;
1414 static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1416 strlcpy(info->driver, "wl3501_cs", sizeof(info->driver));
1419 static const struct ethtool_ops ops = {
1420 .get_drvinfo = wl3501_get_drvinfo
1424 * wl3501_detach - deletes a driver "instance"
1427 * This deletes a driver "instance". The device is de-registered with Card
1428 * Services. If it has been released, all local data structures are freed.
1429 * Otherwise, the structures will be freed when the device is released.
1431 static void wl3501_detach(struct pcmcia_device *link)
1433 struct net_device *dev = link->priv;
1435 /* If the device is currently configured and active, we won't actually
1436 * delete it yet. Instead, it is marked so that when the release()
1437 * function is called, that will trigger a proper detach(). */
1439 while (link->open > 0)
1442 netif_device_detach(dev);
1443 wl3501_release(link);
1445 unregister_netdev(dev);
1448 free_netdev(link->priv);
1451 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1452 union iwreq_data *wrqu, char *extra)
1454 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1458 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1459 union iwreq_data *wrqu, char *extra)
1461 struct wl3501_card *this = netdev_priv(dev);
1462 int channel = wrqu->freq.m;
1465 if (iw_valid_channel(this->reg_domain, channel)) {
1466 this->chan = channel;
1467 rc = wl3501_reset(dev);
1472 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1473 union iwreq_data *wrqu, char *extra)
1475 struct wl3501_card *this = netdev_priv(dev);
1477 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1482 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1483 union iwreq_data *wrqu, char *extra)
1487 if (wrqu->mode == IW_MODE_INFRA ||
1488 wrqu->mode == IW_MODE_ADHOC ||
1489 wrqu->mode == IW_MODE_AUTO) {
1490 struct wl3501_card *this = netdev_priv(dev);
1492 this->net_type = wrqu->mode;
1493 rc = wl3501_reset(dev);
1498 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1499 union iwreq_data *wrqu, char *extra)
1501 struct wl3501_card *this = netdev_priv(dev);
1503 wrqu->mode = this->net_type;
1507 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1508 union iwreq_data *wrqu, char *extra)
1510 struct wl3501_card *this = netdev_priv(dev);
1512 wrqu->sens.value = this->rssi;
1513 wrqu->sens.disabled = !wrqu->sens.value;
1514 wrqu->sens.fixed = 1;
1518 static int wl3501_get_range(struct net_device *dev,
1519 struct iw_request_info *info,
1520 union iwreq_data *wrqu, char *extra)
1522 struct iw_range *range = (struct iw_range *)extra;
1524 /* Set the length (very important for backward compatibility) */
1525 wrqu->data.length = sizeof(*range);
1527 /* Set all the info we don't care or don't know about to zero */
1528 memset(range, 0, sizeof(*range));
1530 /* Set the Wireless Extension versions */
1531 range->we_version_compiled = WIRELESS_EXT;
1532 range->we_version_source = 1;
1533 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1534 /* FIXME: study the code to fill in more fields... */
1538 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1539 union iwreq_data *wrqu, char *extra)
1541 struct wl3501_card *this = netdev_priv(dev);
1542 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1545 /* FIXME: we support other ARPHRDs...*/
1546 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1548 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1549 /* FIXME: rescan? */
1551 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1552 /* FIXME: rescan? deassoc & scan? */
1558 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1559 union iwreq_data *wrqu, char *extra)
1561 struct wl3501_card *this = netdev_priv(dev);
1563 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1564 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1568 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1569 union iwreq_data *wrqu, char *extra)
1572 * FIXME: trigger scanning with a reset, yes, I'm lazy
1574 return wl3501_reset(dev);
1577 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1578 union iwreq_data *wrqu, char *extra)
1580 struct wl3501_card *this = netdev_priv(dev);
1582 char *current_ev = extra;
1583 struct iw_event iwe;
1585 for (i = 0; i < this->bss_cnt; ++i) {
1586 iwe.cmd = SIOCGIWAP;
1587 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1588 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1589 current_ev = iwe_stream_add_event(info, current_ev,
1590 extra + IW_SCAN_MAX_DATA,
1591 &iwe, IW_EV_ADDR_LEN);
1592 iwe.cmd = SIOCGIWESSID;
1593 iwe.u.data.flags = 1;
1594 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1595 current_ev = iwe_stream_add_point(info, current_ev,
1596 extra + IW_SCAN_MAX_DATA,
1598 this->bss_set[i].ssid.essid);
1599 iwe.cmd = SIOCGIWMODE;
1600 iwe.u.mode = this->bss_set[i].bss_type;
1601 current_ev = iwe_stream_add_event(info, current_ev,
1602 extra + IW_SCAN_MAX_DATA,
1603 &iwe, IW_EV_UINT_LEN);
1604 iwe.cmd = SIOCGIWFREQ;
1605 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1607 current_ev = iwe_stream_add_event(info, current_ev,
1608 extra + IW_SCAN_MAX_DATA,
1609 &iwe, IW_EV_FREQ_LEN);
1610 iwe.cmd = SIOCGIWENCODE;
1611 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1612 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1614 iwe.u.data.flags = IW_ENCODE_DISABLED;
1615 iwe.u.data.length = 0;
1616 current_ev = iwe_stream_add_point(info, current_ev,
1617 extra + IW_SCAN_MAX_DATA,
1620 /* Length of data */
1621 wrqu->data.length = (current_ev - extra);
1622 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1626 static int wl3501_set_essid(struct net_device *dev,
1627 struct iw_request_info *info,
1628 union iwreq_data *wrqu, char *extra)
1630 struct wl3501_card *this = netdev_priv(dev);
1632 if (wrqu->data.flags) {
1633 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1635 extra, wrqu->data.length);
1636 } else { /* We accept any ESSID */
1637 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1638 &this->essid.el, "ANY", 3);
1640 return wl3501_reset(dev);
1643 static int wl3501_get_essid(struct net_device *dev,
1644 struct iw_request_info *info,
1645 union iwreq_data *wrqu, char *extra)
1647 struct wl3501_card *this = netdev_priv(dev);
1648 unsigned long flags;
1650 spin_lock_irqsave(&this->lock, flags);
1651 wrqu->essid.flags = 1;
1652 wrqu->essid.length = this->essid.el.len;
1653 memcpy(extra, this->essid.essid, this->essid.el.len);
1654 spin_unlock_irqrestore(&this->lock, flags);
1658 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1659 union iwreq_data *wrqu, char *extra)
1661 struct wl3501_card *this = netdev_priv(dev);
1663 if (wrqu->data.length > sizeof(this->nick))
1665 strlcpy(this->nick, extra, wrqu->data.length);
1669 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1670 union iwreq_data *wrqu, char *extra)
1672 struct wl3501_card *this = netdev_priv(dev);
1674 strlcpy(extra, this->nick, 32);
1675 wrqu->data.length = strlen(extra);
1679 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1680 union iwreq_data *wrqu, char *extra)
1683 * FIXME: have to see from where to get this info, perhaps this card
1684 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1685 * common with the Planet Access Points. -acme
1687 wrqu->bitrate.value = 2000000;
1688 wrqu->bitrate.fixed = 1;
1692 static int wl3501_get_rts_threshold(struct net_device *dev,
1693 struct iw_request_info *info,
1694 union iwreq_data *wrqu, char *extra)
1696 u16 threshold; /* size checked: it is u16 */
1697 struct wl3501_card *this = netdev_priv(dev);
1698 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1699 &threshold, sizeof(threshold));
1701 wrqu->rts.value = threshold;
1702 wrqu->rts.disabled = threshold >= 2347;
1703 wrqu->rts.fixed = 1;
1708 static int wl3501_get_frag_threshold(struct net_device *dev,
1709 struct iw_request_info *info,
1710 union iwreq_data *wrqu, char *extra)
1712 u16 threshold; /* size checked: it is u16 */
1713 struct wl3501_card *this = netdev_priv(dev);
1714 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1715 &threshold, sizeof(threshold));
1717 wrqu->frag.value = threshold;
1718 wrqu->frag.disabled = threshold >= 2346;
1719 wrqu->frag.fixed = 1;
1724 static int wl3501_get_txpow(struct net_device *dev,
1725 struct iw_request_info *info,
1726 union iwreq_data *wrqu, char *extra)
1729 struct wl3501_card *this = netdev_priv(dev);
1730 int rc = wl3501_get_mib_value(this,
1731 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1732 &txpow, sizeof(txpow));
1734 wrqu->txpower.value = txpow;
1735 wrqu->txpower.disabled = 0;
1737 * From the MIB values I think this can be configurable,
1738 * as it lists several tx power levels -acme
1740 wrqu->txpower.fixed = 0;
1741 wrqu->txpower.flags = IW_TXPOW_MWATT;
1746 static int wl3501_get_retry(struct net_device *dev,
1747 struct iw_request_info *info,
1748 union iwreq_data *wrqu, char *extra)
1750 u8 retry; /* size checked: it is u8 */
1751 struct wl3501_card *this = netdev_priv(dev);
1752 int rc = wl3501_get_mib_value(this,
1753 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1754 &retry, sizeof(retry));
1757 if (wrqu->retry.flags & IW_RETRY_LONG) {
1758 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1761 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1762 &retry, sizeof(retry));
1765 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1767 wrqu->retry.value = retry;
1768 wrqu->retry.disabled = 0;
1773 static int wl3501_get_encode(struct net_device *dev,
1774 struct iw_request_info *info,
1775 union iwreq_data *wrqu, char *extra)
1777 u8 implemented, restricted, keys[100], len_keys, tocopy;
1778 struct wl3501_card *this = netdev_priv(dev);
1779 int rc = wl3501_get_mib_value(this,
1780 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1781 &implemented, sizeof(implemented));
1785 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1788 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1789 &restricted, sizeof(restricted));
1792 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1794 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1795 &len_keys, sizeof(len_keys));
1798 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1802 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1803 tocopy = min_t(u8, tocopy, 100);
1804 wrqu->encoding.length = tocopy;
1805 memcpy(extra, keys, tocopy);
1810 static int wl3501_get_power(struct net_device *dev,
1811 struct iw_request_info *info,
1812 union iwreq_data *wrqu, char *extra)
1815 struct wl3501_card *this = netdev_priv(dev);
1816 int rc = wl3501_get_mib_value(this,
1817 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1818 &pwr_state, sizeof(pwr_state));
1821 wrqu->power.disabled = !pwr_state;
1822 wrqu->power.flags = IW_POWER_ON;
1827 static const iw_handler wl3501_handler[] = {
1828 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1829 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1830 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1831 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1832 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1833 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1834 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1835 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1836 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1837 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1838 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1839 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1840 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1841 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1842 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1843 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1844 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1845 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1846 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1847 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1848 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1849 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1850 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1851 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1852 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1853 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1856 static const struct iw_handler_def wl3501_handler_def = {
1857 .num_standard = ARRAY_SIZE(wl3501_handler),
1858 .standard = (iw_handler *)wl3501_handler,
1859 .get_wireless_stats = wl3501_get_wireless_stats,
1862 static const struct net_device_ops wl3501_netdev_ops = {
1863 .ndo_open = wl3501_open,
1864 .ndo_stop = wl3501_close,
1865 .ndo_start_xmit = wl3501_hard_start_xmit,
1866 .ndo_tx_timeout = wl3501_tx_timeout,
1867 .ndo_change_mtu = eth_change_mtu,
1868 .ndo_set_mac_address = eth_mac_addr,
1869 .ndo_validate_addr = eth_validate_addr,
1873 * wl3501_attach - creates an "instance" of the driver
1875 * Creates an "instance" of the driver, allocating local data structures for
1876 * one device. The device is registered with Card Services.
1878 * The dev_link structure is initialized, but we don't actually configure the
1879 * card at this point -- we wait until we receive a card insertion event.
1881 static int wl3501_probe(struct pcmcia_device *p_dev)
1883 struct net_device *dev;
1884 struct wl3501_card *this;
1886 /* The io structure describes IO port mapping */
1887 p_dev->resource[0]->end = 16;
1888 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1890 /* General socket configuration */
1891 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1892 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1893 p_dev->conf.ConfigIndex = 1;
1895 dev = alloc_etherdev(sizeof(struct wl3501_card));
1900 dev->netdev_ops = &wl3501_netdev_ops;
1901 dev->watchdog_timeo = 5 * HZ;
1903 this = netdev_priv(dev);
1904 this->wireless_data.spy_data = &this->spy_data;
1905 this->p_dev = p_dev;
1906 dev->wireless_data = &this->wireless_data;
1907 dev->wireless_handlers = &wl3501_handler_def;
1908 SET_ETHTOOL_OPS(dev, &ops);
1909 netif_stop_queue(dev);
1912 return wl3501_config(p_dev);
1918 * wl3501_config - configure the PCMCIA socket and make eth device available
1921 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1922 * received, to configure the PCMCIA socket, and to make the ethernet device
1923 * available to the system.
1925 static int wl3501_config(struct pcmcia_device *link)
1927 struct net_device *dev = link->priv;
1929 struct wl3501_card *this;
1931 /* Try allocating IO ports. This tries a few fixed addresses. If you
1932 * want, you can also read the card's config table to pick addresses --
1933 * see the serial driver for an example. */
1936 for (j = 0x280; j < 0x400; j += 0x20) {
1937 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1938 * 0x200-0x2ff, and so on, because this seems safer */
1939 link->resource[0]->start = j;
1940 link->resource[1]->start = link->resource[0]->start + 0x10;
1941 i = pcmcia_request_io(link);
1948 /* Now allocate an interrupt line. Note that this does not actually
1949 * assign a handler to the interrupt. */
1951 ret = pcmcia_request_irq(link, wl3501_interrupt);
1955 /* This actually configures the PCMCIA socket -- setting up the I/O
1956 * windows and the interrupt mapping. */
1958 ret = pcmcia_request_configuration(link, &link->conf);
1962 dev->irq = link->irq;
1963 dev->base_addr = link->resource[0]->start;
1964 SET_NETDEV_DEV(dev, &link->dev);
1965 if (register_netdev(dev)) {
1966 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1970 this = netdev_priv(dev);
1972 this->base_addr = dev->base_addr;
1974 if (!wl3501_get_flash_mac_addr(this)) {
1975 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
1977 unregister_netdev(dev);
1981 for (i = 0; i < 6; i++)
1982 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1984 /* print probe information */
1985 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1986 "MAC addr in flash ROM:%pM\n",
1987 dev->name, this->base_addr, (int)dev->irq,
1990 * Initialize card parameters - added by jss
1992 this->net_type = IW_MODE_INFRA;
1994 this->join_sta_bss = 0;
1995 this->adhoc_times = 0;
1996 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1998 this->card_name[0] = '\0';
1999 this->firmware_date[0] = '\0';
2001 this->chan = iw_default_channel(this->reg_domain);
2002 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2003 spin_lock_init(&this->lock);
2004 init_waitqueue_head(&this->wait);
2005 netif_start_queue(dev);
2009 wl3501_release(link);
2014 * wl3501_release - unregister the net, release PCMCIA configuration
2017 * After a card is removed, wl3501_release() will unregister the net device,
2018 * and release the PCMCIA configuration. If the device is still open, this
2019 * will be postponed until it is closed.
2021 static void wl3501_release(struct pcmcia_device *link)
2023 pcmcia_disable_device(link);
2026 static int wl3501_suspend(struct pcmcia_device *link)
2028 struct net_device *dev = link->priv;
2030 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
2032 netif_device_detach(dev);
2037 static int wl3501_resume(struct pcmcia_device *link)
2039 struct net_device *dev = link->priv;
2041 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
2044 netif_device_attach(dev);
2051 static struct pcmcia_device_id wl3501_ids[] = {
2052 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2055 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2057 static struct pcmcia_driver wl3501_driver = {
2058 .owner = THIS_MODULE,
2060 .name = "wl3501_cs",
2062 .probe = wl3501_probe,
2063 .remove = wl3501_detach,
2064 .id_table = wl3501_ids,
2065 .suspend = wl3501_suspend,
2066 .resume = wl3501_resume,
2069 static int __init wl3501_init_module(void)
2071 return pcmcia_register_driver(&wl3501_driver);
2074 static void __exit wl3501_exit_module(void)
2076 pcmcia_unregister_driver(&wl3501_driver);
2079 module_init(wl3501_init_module);
2080 module_exit(wl3501_exit_module);
2082 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2083 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2084 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2085 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2086 MODULE_LICENSE("GPL");