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
.ConfigIndex
= 1;
1894 dev
= alloc_etherdev(sizeof(struct wl3501_card
));
1899 dev
->netdev_ops
= &wl3501_netdev_ops
;
1900 dev
->watchdog_timeo
= 5 * HZ
;
1902 this = netdev_priv(dev
);
1903 this->wireless_data
.spy_data
= &this->spy_data
;
1904 this->p_dev
= p_dev
;
1905 dev
->wireless_data
= &this->wireless_data
;
1906 dev
->wireless_handlers
= &wl3501_handler_def
;
1907 SET_ETHTOOL_OPS(dev
, &ops
);
1908 netif_stop_queue(dev
);
1911 return wl3501_config(p_dev
);
1917 * wl3501_config - configure the PCMCIA socket and make eth device available
1920 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1921 * received, to configure the PCMCIA socket, and to make the ethernet device
1922 * available to the system.
1924 static int wl3501_config(struct pcmcia_device
*link
)
1926 struct net_device
*dev
= link
->priv
;
1928 struct wl3501_card
*this;
1930 /* Try allocating IO ports. This tries a few fixed addresses. If you
1931 * want, you can also read the card's config table to pick addresses --
1932 * see the serial driver for an example. */
1935 for (j
= 0x280; j
< 0x400; j
+= 0x20) {
1936 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1937 * 0x200-0x2ff, and so on, because this seems safer */
1938 link
->resource
[0]->start
= j
;
1939 link
->resource
[1]->start
= link
->resource
[0]->start
+ 0x10;
1940 i
= pcmcia_request_io(link
);
1947 /* Now allocate an interrupt line. Note that this does not actually
1948 * assign a handler to the interrupt. */
1950 ret
= pcmcia_request_irq(link
, wl3501_interrupt
);
1954 /* This actually configures the PCMCIA socket -- setting up the I/O
1955 * windows and the interrupt mapping. */
1957 ret
= pcmcia_request_configuration(link
, &link
->conf
);
1961 dev
->irq
= link
->irq
;
1962 dev
->base_addr
= link
->resource
[0]->start
;
1963 SET_NETDEV_DEV(dev
, &link
->dev
);
1964 if (register_netdev(dev
)) {
1965 printk(KERN_NOTICE
"wl3501_cs: register_netdev() failed\n");
1969 this = netdev_priv(dev
);
1971 this->base_addr
= dev
->base_addr
;
1973 if (!wl3501_get_flash_mac_addr(this)) {
1974 printk(KERN_WARNING
"%s: Cant read MAC addr in flash ROM?\n",
1976 unregister_netdev(dev
);
1980 for (i
= 0; i
< 6; i
++)
1981 dev
->dev_addr
[i
] = ((char *)&this->mac_addr
)[i
];
1983 /* print probe information */
1984 printk(KERN_INFO
"%s: wl3501 @ 0x%3.3x, IRQ %d, "
1985 "MAC addr in flash ROM:%pM\n",
1986 dev
->name
, this->base_addr
, (int)dev
->irq
,
1989 * Initialize card parameters - added by jss
1991 this->net_type
= IW_MODE_INFRA
;
1993 this->join_sta_bss
= 0;
1994 this->adhoc_times
= 0;
1995 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID
, &this->essid
.el
,
1997 this->card_name
[0] = '\0';
1998 this->firmware_date
[0] = '\0';
2000 this->chan
= iw_default_channel(this->reg_domain
);
2001 strlcpy(this->nick
, "Planet WL3501", sizeof(this->nick
));
2002 spin_lock_init(&this->lock
);
2003 init_waitqueue_head(&this->wait
);
2004 netif_start_queue(dev
);
2008 wl3501_release(link
);
2013 * wl3501_release - unregister the net, release PCMCIA configuration
2016 * After a card is removed, wl3501_release() will unregister the net device,
2017 * and release the PCMCIA configuration. If the device is still open, this
2018 * will be postponed until it is closed.
2020 static void wl3501_release(struct pcmcia_device
*link
)
2022 pcmcia_disable_device(link
);
2025 static int wl3501_suspend(struct pcmcia_device
*link
)
2027 struct net_device
*dev
= link
->priv
;
2029 wl3501_pwr_mgmt(netdev_priv(dev
), WL3501_SUSPEND
);
2031 netif_device_detach(dev
);
2036 static int wl3501_resume(struct pcmcia_device
*link
)
2038 struct net_device
*dev
= link
->priv
;
2040 wl3501_pwr_mgmt(netdev_priv(dev
), WL3501_RESUME
);
2043 netif_device_attach(dev
);
2050 static struct pcmcia_device_id wl3501_ids
[] = {
2051 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2054 MODULE_DEVICE_TABLE(pcmcia
, wl3501_ids
);
2056 static struct pcmcia_driver wl3501_driver
= {
2057 .owner
= THIS_MODULE
,
2059 .name
= "wl3501_cs",
2061 .probe
= wl3501_probe
,
2062 .remove
= wl3501_detach
,
2063 .id_table
= wl3501_ids
,
2064 .suspend
= wl3501_suspend
,
2065 .resume
= wl3501_resume
,
2068 static int __init
wl3501_init_module(void)
2070 return pcmcia_register_driver(&wl3501_driver
);
2073 static void __exit
wl3501_exit_module(void)
2075 pcmcia_unregister_driver(&wl3501_driver
);
2078 module_init(wl3501_init_module
);
2079 module_exit(wl3501_exit_module
);
2081 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2082 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2083 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2084 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2085 MODULE_LICENSE("GPL");