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)
29 #undef REALLY_SLOW_IO /* most systems can safely undef this */
31 #include <linux/config.h>
32 #include <linux/delay.h>
33 #include <linux/types.h>
34 #include <linux/ethtool.h>
35 #include <linux/init.h>
36 #include <linux/interrupt.h>
38 #include <linux/kernel.h>
39 #include <linux/module.h>
40 #include <linux/fcntl.h>
41 #include <linux/if_arp.h>
42 #include <linux/ioport.h>
43 #include <linux/netdevice.h>
44 #include <linux/etherdevice.h>
45 #include <linux/skbuff.h>
46 #include <linux/slab.h>
47 #include <linux/string.h>
48 #include <linux/wireless.h>
50 #include <net/iw_handler.h>
52 #include <pcmcia/version.h>
53 #include <pcmcia/cs_types.h>
54 #include <pcmcia/cs.h>
55 #include <pcmcia/cistpl.h>
56 #include <pcmcia/cisreg.h>
57 #include <pcmcia/ds.h>
60 #include <asm/uaccess.h>
61 #include <asm/system.h>
66 #define slow_down_io()
69 /* For rough constant delay */
70 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
73 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not
74 * define PCMCIA_DEBUG at all, all the debug code will be left out. If you
75 * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled --
76 * but it can then be enabled for specific modules at load time with a
77 * 'pc_debug=#' option to insmod.
79 #define PCMCIA_DEBUG 0
81 static int pc_debug
= PCMCIA_DEBUG
;
82 module_param(pc_debug
, int, 0);
83 #define dprintk(n, format, args...) \
84 { if (pc_debug > (n)) \
85 printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##args); }
87 #define dprintk(n, format, args...)
90 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
91 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
92 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
94 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
95 #define WL3501_MAX_ADHOC_TRIES 16
97 #define WL3501_RESUME 0
98 #define WL3501_SUSPEND 1
101 * The event() function is this driver's Card Services event handler. It will
102 * be called by Card Services when an appropriate card status event is
103 * received. The config() and release() entry points are used to configure or
104 * release a socket, in response to card insertion and ejection events. They
105 * are invoked from the wl24 event handler.
107 static void wl3501_config(dev_link_t
*link
);
108 static void wl3501_release(dev_link_t
*link
);
109 static int wl3501_event(event_t event
, int pri
, event_callback_args_t
*args
);
112 * The dev_info variable is the "key" that is used to match up this
113 * device driver with appropriate cards, through the card configuration
116 static dev_info_t wl3501_dev_info
= "wl3501_cs";
118 static int wl3501_chan2freq
[] = {
119 [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432,
120 [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457,
121 [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477,
124 static const struct {
127 } iw_channel_table
[] = {
129 .reg_domain
= IW_REG_DOMAIN_FCC
,
135 .reg_domain
= IW_REG_DOMAIN_DOC
,
141 .reg_domain
= IW_REG_DOMAIN_ETSI
,
147 .reg_domain
= IW_REG_DOMAIN_SPAIN
,
153 .reg_domain
= IW_REG_DOMAIN_FRANCE
,
159 .reg_domain
= IW_REG_DOMAIN_MKK
,
165 .reg_domain
= IW_REG_DOMAIN_MKK1
,
171 .reg_domain
= IW_REG_DOMAIN_ISRAEL
,
179 * iw_valid_channel - validate channel in regulatory domain
180 * @reg_comain - regulatory domain
181 * @channel - channel to validate
183 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
185 static int iw_valid_channel(int reg_domain
, int channel
)
189 for (i
= 0; i
< ARRAY_SIZE(iw_channel_table
); i
++)
190 if (reg_domain
== iw_channel_table
[i
].reg_domain
) {
191 rc
= channel
>= iw_channel_table
[i
].min
&&
192 channel
<= iw_channel_table
[i
].max
;
199 * iw_default_channel - get default channel for a regulatory domain
200 * @reg_comain - regulatory domain
202 * Returns the default channel for a regulatory domain
204 static int iw_default_channel(int reg_domain
)
208 for (i
= 0; i
< ARRAY_SIZE(iw_channel_table
); i
++)
209 if (reg_domain
== iw_channel_table
[i
].reg_domain
) {
210 rc
= iw_channel_table
[i
].deflt
;
216 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id
,
217 struct iw_mgmt_info_element
*el
,
218 void *value
, int len
)
222 memcpy(el
->data
, value
, len
);
225 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element
*to
,
226 struct iw_mgmt_info_element
*from
)
228 iw_set_mgmt_info_element(from
->id
, to
, from
->data
, from
->len
);
232 * A linked list of "instances" of the wl24 device. Each actual PCMCIA card
233 * corresponds to one device instance, and is described by one dev_link_t
234 * structure (defined in ds.h).
236 * You may not want to use a linked list for this -- for example, the memory
237 * card driver uses an array of dev_link_t pointers, where minor device numbers
238 * are used to derive the corresponding array index.
240 static dev_link_t
*wl3501_dev_list
;
242 static inline void wl3501_switch_page(struct wl3501_card
*this, u8 page
)
244 wl3501_outb(page
, this->base_addr
+ WL3501_NIC_BSS
);
248 * Get Ethernet MAC addresss.
250 * WARNING: We switch to FPAGE0 and switc back again.
251 * Making sure there is no other WL function beening called by ISR.
253 static int wl3501_get_flash_mac_addr(struct wl3501_card
*this)
255 int base_addr
= this->base_addr
;
258 wl3501_outb(WL3501_BSS_FPAGE3
, base_addr
+ WL3501_NIC_BSS
); /* BSS */
259 wl3501_outb(0x00, base_addr
+ WL3501_NIC_LMAL
); /* LMAL */
260 wl3501_outb(0x40, base_addr
+ WL3501_NIC_LMAH
); /* LMAH */
262 /* wait for reading EEPROM */
264 this->mac_addr
[0] = inb(base_addr
+ WL3501_NIC_IODPA
);
266 this->mac_addr
[1] = inb(base_addr
+ WL3501_NIC_IODPA
);
268 this->mac_addr
[2] = inb(base_addr
+ WL3501_NIC_IODPA
);
270 this->mac_addr
[3] = inb(base_addr
+ WL3501_NIC_IODPA
);
272 this->mac_addr
[4] = inb(base_addr
+ WL3501_NIC_IODPA
);
274 this->mac_addr
[5] = inb(base_addr
+ WL3501_NIC_IODPA
);
276 this->reg_domain
= inb(base_addr
+ WL3501_NIC_IODPA
);
278 wl3501_outb(WL3501_BSS_FPAGE0
, base_addr
+ WL3501_NIC_BSS
);
279 wl3501_outb(0x04, base_addr
+ WL3501_NIC_LMAL
);
280 wl3501_outb(0x40, base_addr
+ WL3501_NIC_LMAH
);
282 this->version
[0] = inb(base_addr
+ WL3501_NIC_IODPA
);
284 this->version
[1] = inb(base_addr
+ WL3501_NIC_IODPA
);
285 /* switch to SRAM Page 0 (for safety) */
286 wl3501_switch_page(this, WL3501_BSS_SPAGE0
);
288 /* The MAC addr should be 00:60:... */
289 return this->mac_addr
[0] == 0x00 && this->mac_addr
[1] == 0x60;
293 * wl3501_set_to_wla - Move 'size' bytes from PC to card
294 * @dest: Card addressing space
295 * @src: PC addressing space
296 * @size: Bytes to move
298 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
300 static void wl3501_set_to_wla(struct wl3501_card
*this, u16 dest
, void *src
,
303 /* switch to SRAM Page 0 */
304 wl3501_switch_page(this, (dest
& 0x8000) ? WL3501_BSS_SPAGE1
:
306 /* set LMAL and LMAH */
307 wl3501_outb(dest
& 0xff, this->base_addr
+ WL3501_NIC_LMAL
);
308 wl3501_outb(((dest
>> 8) & 0x7f), this->base_addr
+ WL3501_NIC_LMAH
);
310 /* rep out to Port A */
311 wl3501_outsb(this->base_addr
+ WL3501_NIC_IODPA
, src
, size
);
315 * wl3501_get_from_wla - Move 'size' bytes from card to PC
316 * @src: Card addressing space
317 * @dest: PC addressing space
318 * @size: Bytes to move
320 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
322 static void wl3501_get_from_wla(struct wl3501_card
*this, u16 src
, void *dest
,
325 /* switch to SRAM Page 0 */
326 wl3501_switch_page(this, (src
& 0x8000) ? WL3501_BSS_SPAGE1
:
328 /* set LMAL and LMAH */
329 wl3501_outb(src
& 0xff, this->base_addr
+ WL3501_NIC_LMAL
);
330 wl3501_outb((src
>> 8) & 0x7f, this->base_addr
+ WL3501_NIC_LMAH
);
332 /* rep get from Port A */
333 insb(this->base_addr
+ WL3501_NIC_IODPA
, dest
, size
);
337 * Get/Allocate a free Tx Data Buffer
339 * *--------------*-----------------*----------------------------------*
340 * | PLCP | MAC Header | DST SRC Data ... |
341 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
342 * *--------------*-----------------*----------------------------------*
343 * \ \- IEEE 802.11 -/ \-------------- len --------------/
344 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
346 * Return = Postion in Card
348 static u16
wl3501_get_tx_buffer(struct wl3501_card
*this, u16 len
)
350 u16 next
, blk_cnt
= 0, zero
= 0;
351 u16 full_len
= sizeof(struct wl3501_80211_tx_hdr
) + len
;
354 if (full_len
> this->tx_buffer_cnt
* 254)
356 ret
= this->tx_buffer_head
;
362 wl3501_get_from_wla(this, this->tx_buffer_head
, &next
,
365 wl3501_set_to_wla(this, this->tx_buffer_head
, &zero
,
367 this->tx_buffer_head
= next
;
369 /* if buffer is not enough */
370 if (!next
&& full_len
) {
371 this->tx_buffer_head
= ret
;
376 this->tx_buffer_cnt
-= blk_cnt
;
382 * Free an allocated Tx Buffer. ptr must be correct position.
384 static void wl3501_free_tx_buffer(struct wl3501_card
*this, u16 ptr
)
386 /* check if all space is not free */
387 if (!this->tx_buffer_head
)
388 this->tx_buffer_head
= ptr
;
390 wl3501_set_to_wla(this, this->tx_buffer_tail
,
395 this->tx_buffer_cnt
++;
396 wl3501_get_from_wla(this, ptr
, &next
, sizeof(next
));
397 this->tx_buffer_tail
= ptr
;
402 static int wl3501_esbq_req_test(struct wl3501_card
*this)
406 wl3501_get_from_wla(this, this->esbq_req_head
+ 3, &tmp
, sizeof(tmp
));
410 static void wl3501_esbq_req(struct wl3501_card
*this, u16
*ptr
)
414 wl3501_set_to_wla(this, this->esbq_req_head
, ptr
, 2);
415 wl3501_set_to_wla(this, this->esbq_req_head
+ 2, &tmp
, sizeof(tmp
));
416 this->esbq_req_head
+= 4;
417 if (this->esbq_req_head
>= this->esbq_req_end
)
418 this->esbq_req_head
= this->esbq_req_start
;
421 static int wl3501_esbq_exec(struct wl3501_card
*this, void *sig
, int sig_size
)
425 if (wl3501_esbq_req_test(this)) {
426 u16 ptr
= wl3501_get_tx_buffer(this, sig_size
);
428 wl3501_set_to_wla(this, ptr
, sig
, sig_size
);
429 wl3501_esbq_req(this, &ptr
);
436 static int wl3501_get_mib_value(struct wl3501_card
*this, u8 index
,
439 struct wl3501_get_req sig
= {
440 .sig_id
= WL3501_SIG_GET_REQ
,
446 spin_lock_irqsave(&this->lock
, flags
);
447 if (wl3501_esbq_req_test(this)) {
448 u16 ptr
= wl3501_get_tx_buffer(this, sizeof(sig
));
450 wl3501_set_to_wla(this, ptr
, &sig
, sizeof(sig
));
451 wl3501_esbq_req(this, &ptr
);
452 this->sig_get_confirm
.mib_status
= 255;
453 spin_unlock_irqrestore(&this->lock
, flags
);
454 rc
= wait_event_interruptible(this->wait
,
455 this->sig_get_confirm
.mib_status
!= 255);
457 memcpy(bf
, this->sig_get_confirm
.mib_value
,
462 spin_unlock_irqrestore(&this->lock
, flags
);
467 static int wl3501_pwr_mgmt(struct wl3501_card
*this, int suspend
)
469 struct wl3501_pwr_mgmt_req sig
= {
470 .sig_id
= WL3501_SIG_PWR_MGMT_REQ
,
478 spin_lock_irqsave(&this->lock
, flags
);
479 if (wl3501_esbq_req_test(this)) {
480 u16 ptr
= wl3501_get_tx_buffer(this, sizeof(sig
));
482 wl3501_set_to_wla(this, ptr
, &sig
, sizeof(sig
));
483 wl3501_esbq_req(this, &ptr
);
484 this->sig_pwr_mgmt_confirm
.status
= 255;
485 spin_unlock_irqrestore(&this->lock
, flags
);
486 rc
= wait_event_interruptible(this->wait
,
487 this->sig_pwr_mgmt_confirm
.status
!= 255);
488 printk(KERN_INFO
"%s: %s status=%d\n", __FUNCTION__
,
489 suspend
? "suspend" : "resume",
490 this->sig_pwr_mgmt_confirm
.status
);
494 spin_unlock_irqrestore(&this->lock
, flags
);
500 * wl3501_send_pkt - Send a packet.
505 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
506 * data[6] - data[11] is Src MAC Addr)
509 static int wl3501_send_pkt(struct wl3501_card
*this, u8
*data
, u16 len
)
511 u16 bf
, sig_bf
, next
, tmplen
, pktlen
;
512 struct wl3501_md_req sig
= {
513 .sig_id
= WL3501_SIG_MD_REQ
,
515 u8
*pdata
= (char *)data
;
518 if (wl3501_esbq_req_test(this)) {
519 sig_bf
= wl3501_get_tx_buffer(this, sizeof(sig
));
521 if (!sig_bf
) /* No free buffer available */
523 bf
= wl3501_get_tx_buffer(this, len
+ 26 + 24);
525 /* No free buffer available */
526 wl3501_free_tx_buffer(this, sig_bf
);
530 memcpy(&sig
.daddr
[0], pdata
, 12);
534 if (((*pdata
) * 256 + (*(pdata
+ 1))) > 1500) {
535 u8 addr4
[ETH_ALEN
] = {
536 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
539 wl3501_set_to_wla(this, bf
+ 2 +
540 offsetof(struct wl3501_tx_hdr
, addr4
),
541 addr4
, sizeof(addr4
));
542 sig
.size
= pktlen
+ 24 + 4 + 6;
543 if (pktlen
> (254 - sizeof(struct wl3501_tx_hdr
))) {
544 tmplen
= 254 - sizeof(struct wl3501_tx_hdr
);
550 wl3501_set_to_wla(this,
551 bf
+ 2 + sizeof(struct wl3501_tx_hdr
),
554 wl3501_get_from_wla(this, bf
, &next
, sizeof(next
));
557 sig
.size
= pktlen
+ 24 + 4 - 2;
560 if (pktlen
> (254 - sizeof(struct wl3501_tx_hdr
) + 6)) {
561 tmplen
= 254 - sizeof(struct wl3501_tx_hdr
) + 6;
567 wl3501_set_to_wla(this, bf
+ 2 +
568 offsetof(struct wl3501_tx_hdr
, addr4
),
571 wl3501_get_from_wla(this, bf
, &next
, sizeof(next
));
582 wl3501_set_to_wla(this, bf
+ 2, pdata
, tmplen
);
584 wl3501_get_from_wla(this, bf
, &next
, sizeof(next
));
587 wl3501_set_to_wla(this, sig_bf
, &sig
, sizeof(sig
));
588 wl3501_esbq_req(this, &sig_bf
);
594 static int wl3501_mgmt_resync(struct wl3501_card
*this)
596 struct wl3501_resync_req sig
= {
597 .sig_id
= WL3501_SIG_RESYNC_REQ
,
600 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
603 static inline int wl3501_fw_bss_type(struct wl3501_card
*this)
605 return this->net_type
== IW_MODE_INFRA
? WL3501_NET_TYPE_INFRA
:
606 WL3501_NET_TYPE_ADHOC
;
609 static inline int wl3501_fw_cap_info(struct wl3501_card
*this)
611 return this->net_type
== IW_MODE_INFRA
? WL3501_MGMT_CAPABILITY_ESS
:
612 WL3501_MGMT_CAPABILITY_IBSS
;
615 static int wl3501_mgmt_scan(struct wl3501_card
*this, u16 chan_time
)
617 struct wl3501_scan_req sig
= {
618 .sig_id
= WL3501_SIG_SCAN_REQ
,
619 .scan_type
= WL3501_SCAN_TYPE_ACTIVE
,
621 .min_chan_time
= chan_time
,
622 .max_chan_time
= chan_time
,
623 .bss_type
= wl3501_fw_bss_type(this),
626 this->bss_cnt
= this->join_sta_bss
= 0;
627 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
630 static int wl3501_mgmt_join(struct wl3501_card
*this, u16 stas
)
632 struct wl3501_join_req sig
= {
633 .sig_id
= WL3501_SIG_JOIN_REQ
,
637 .id
= IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET
,
644 memcpy(&sig
.beacon_period
, &this->bss_set
[stas
].beacon_period
, 72);
645 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
648 static int wl3501_mgmt_start(struct wl3501_card
*this)
650 struct wl3501_start_req sig
= {
651 .sig_id
= WL3501_SIG_START_REQ
,
652 .beacon_period
= 400,
656 .id
= IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET
,
663 .id
= IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES
,
666 .data_rate_labels
= {
667 [0] = IW_MGMT_RATE_LABEL_MANDATORY
|
668 IW_MGMT_RATE_LABEL_1MBIT
,
669 [1] = IW_MGMT_RATE_LABEL_MANDATORY
|
670 IW_MGMT_RATE_LABEL_2MBIT
,
673 .operational_rset
= {
675 .id
= IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES
,
678 .data_rate_labels
= {
679 [0] = IW_MGMT_RATE_LABEL_MANDATORY
|
680 IW_MGMT_RATE_LABEL_1MBIT
,
681 [1] = IW_MGMT_RATE_LABEL_MANDATORY
|
682 IW_MGMT_RATE_LABEL_2MBIT
,
687 .id
= IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET
,
692 .bss_type
= wl3501_fw_bss_type(this),
693 .cap_info
= wl3501_fw_cap_info(this),
696 iw_copy_mgmt_info_element(&sig
.ssid
.el
, &this->essid
.el
);
697 iw_copy_mgmt_info_element(&this->keep_essid
.el
, &this->essid
.el
);
698 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
701 static void wl3501_mgmt_scan_confirm(struct wl3501_card
*this, u16 addr
)
705 struct wl3501_scan_confirm sig
;
708 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
709 if (sig
.status
== WL3501_STATUS_SUCCESS
) {
710 dprintk(3, "success");
711 if ((this->net_type
== IW_MODE_INFRA
&&
712 (sig
.cap_info
& WL3501_MGMT_CAPABILITY_ESS
)) ||
713 (this->net_type
== IW_MODE_ADHOC
&&
714 (sig
.cap_info
& WL3501_MGMT_CAPABILITY_IBSS
)) ||
715 this->net_type
== IW_MODE_AUTO
) {
716 if (!this->essid
.el
.len
)
718 else if (this->essid
.el
.len
== 3 &&
719 !memcmp(this->essid
.essid
, "ANY", 3))
721 else if (this->essid
.el
.len
!= sig
.ssid
.el
.len
)
723 else if (memcmp(this->essid
.essid
, sig
.ssid
.essid
,
729 for (i
= 0; i
< this->bss_cnt
; i
++) {
730 if (!memcmp(this->bss_set
[i
].bssid
,
731 sig
.bssid
, ETH_ALEN
)) {
737 if (matchflag
&& (i
< 20)) {
738 memcpy(&this->bss_set
[i
].beacon_period
,
739 &sig
.beacon_period
, 73);
741 this->rssi
= sig
.rssi
;
744 } else if (sig
.status
== WL3501_STATUS_TIMEOUT
) {
745 dprintk(3, "timeout");
746 this->join_sta_bss
= 0;
747 for (i
= this->join_sta_bss
; i
< this->bss_cnt
; i
++)
748 if (!wl3501_mgmt_join(this, i
))
750 this->join_sta_bss
= i
;
751 if (this->join_sta_bss
== this->bss_cnt
) {
752 if (this->net_type
== IW_MODE_INFRA
)
753 wl3501_mgmt_scan(this, 100);
756 if (this->adhoc_times
> WL3501_MAX_ADHOC_TRIES
)
757 wl3501_mgmt_start(this);
759 wl3501_mgmt_scan(this, 100);
766 * wl3501_block_interrupt - Mask interrupt from SUTRO
769 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
770 * Return: 1 if interrupt is originally enabled
772 static int wl3501_block_interrupt(struct wl3501_card
*this)
774 u8 old
= inb(this->base_addr
+ WL3501_NIC_GCR
);
775 u8
new = old
& (~(WL3501_GCR_ECINT
| WL3501_GCR_INT2EC
|
776 WL3501_GCR_ENECINT
));
778 wl3501_outb(new, this->base_addr
+ WL3501_NIC_GCR
);
779 return old
& WL3501_GCR_ENECINT
;
783 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
786 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
787 * Return: 1 if interrupt is originally enabled
789 static int wl3501_unblock_interrupt(struct wl3501_card
*this)
791 u8 old
= inb(this->base_addr
+ WL3501_NIC_GCR
);
792 u8
new = (old
& ~(WL3501_GCR_ECINT
| WL3501_GCR_INT2EC
)) |
795 wl3501_outb(new, this->base_addr
+ WL3501_NIC_GCR
);
796 return old
& WL3501_GCR_ENECINT
;
800 * wl3501_receive - Receive data from Receive Queue.
802 * Receive data from Receive Queue.
805 * @bf: address of host
806 * @size: size of buffer.
808 static u16
wl3501_receive(struct wl3501_card
*this, u8
*bf
, u16 size
)
810 u16 next_addr
, next_addr1
;
814 wl3501_get_from_wla(this, this->start_seg
+ 2,
815 &next_addr
, sizeof(next_addr
));
816 if (size
> WL3501_BLKSZ
- sizeof(struct wl3501_rx_hdr
)) {
817 wl3501_get_from_wla(this,
819 sizeof(struct wl3501_rx_hdr
), data
,
821 sizeof(struct wl3501_rx_hdr
));
822 size
-= WL3501_BLKSZ
- sizeof(struct wl3501_rx_hdr
);
823 data
+= WL3501_BLKSZ
- sizeof(struct wl3501_rx_hdr
);
825 wl3501_get_from_wla(this,
827 sizeof(struct wl3501_rx_hdr
),
832 if (size
> WL3501_BLKSZ
- 5) {
833 wl3501_get_from_wla(this, next_addr
+ 5, data
,
835 size
-= WL3501_BLKSZ
- 5;
836 data
+= WL3501_BLKSZ
- 5;
837 wl3501_get_from_wla(this, next_addr
+ 2, &next_addr1
,
839 next_addr
= next_addr1
;
841 wl3501_get_from_wla(this, next_addr
+ 5, data
, size
);
848 static void wl3501_esbq_req_free(struct wl3501_card
*this)
853 if (this->esbq_req_head
== this->esbq_req_tail
)
855 wl3501_get_from_wla(this, this->esbq_req_tail
+ 3, &tmp
, sizeof(tmp
));
858 wl3501_get_from_wla(this, this->esbq_req_tail
, &addr
, sizeof(addr
));
859 wl3501_free_tx_buffer(this, addr
);
860 this->esbq_req_tail
+= 4;
861 if (this->esbq_req_tail
>= this->esbq_req_end
)
862 this->esbq_req_tail
= this->esbq_req_start
;
867 static int wl3501_esbq_confirm(struct wl3501_card
*this)
871 wl3501_get_from_wla(this, this->esbq_confirm
+ 3, &tmp
, sizeof(tmp
));
875 static void wl3501_online(struct net_device
*dev
)
877 struct wl3501_card
*this = dev
->priv
;
879 printk(KERN_INFO
"%s: Wireless LAN online. BSSID: "
880 "%02X %02X %02X %02X %02X %02X\n", dev
->name
,
881 this->bssid
[0], this->bssid
[1], this->bssid
[2],
882 this->bssid
[3], this->bssid
[4], this->bssid
[5]);
883 netif_wake_queue(dev
);
886 static void wl3501_esbq_confirm_done(struct wl3501_card
*this)
890 wl3501_set_to_wla(this, this->esbq_confirm
+ 3, &tmp
, sizeof(tmp
));
891 this->esbq_confirm
+= 4;
892 if (this->esbq_confirm
>= this->esbq_confirm_end
)
893 this->esbq_confirm
= this->esbq_confirm_start
;
896 static int wl3501_mgmt_auth(struct wl3501_card
*this)
898 struct wl3501_auth_req sig
= {
899 .sig_id
= WL3501_SIG_AUTH_REQ
,
900 .type
= WL3501_SYS_TYPE_OPEN
,
905 memcpy(sig
.mac_addr
, this->bssid
, ETH_ALEN
);
906 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
909 static int wl3501_mgmt_association(struct wl3501_card
*this)
911 struct wl3501_assoc_req sig
= {
912 .sig_id
= WL3501_SIG_ASSOC_REQ
,
914 .listen_interval
= 5,
915 .cap_info
= this->cap_info
,
919 memcpy(sig
.mac_addr
, this->bssid
, ETH_ALEN
);
920 return wl3501_esbq_exec(this, &sig
, sizeof(sig
));
923 static void wl3501_mgmt_join_confirm(struct net_device
*dev
, u16 addr
)
925 struct wl3501_card
*this = dev
->priv
;
926 struct wl3501_join_confirm sig
;
929 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
930 if (sig
.status
== WL3501_STATUS_SUCCESS
) {
931 if (this->net_type
== IW_MODE_INFRA
) {
932 if (this->join_sta_bss
< this->bss_cnt
) {
933 const int i
= this->join_sta_bss
;
935 this->bss_set
[i
].bssid
, ETH_ALEN
);
936 this->chan
= this->bss_set
[i
].ds_pset
.chan
;
937 iw_copy_mgmt_info_element(&this->keep_essid
.el
,
938 &this->bss_set
[i
].ssid
.el
);
939 wl3501_mgmt_auth(this);
942 const int i
= this->join_sta_bss
;
944 memcpy(&this->bssid
, &this->bss_set
[i
].bssid
, ETH_ALEN
);
945 this->chan
= this->bss_set
[i
].ds_pset
.chan
;
946 iw_copy_mgmt_info_element(&this->keep_essid
.el
,
947 &this->bss_set
[i
].ssid
.el
);
952 this->join_sta_bss
++;
953 for (i
= this->join_sta_bss
; i
< this->bss_cnt
; i
++)
954 if (!wl3501_mgmt_join(this, i
))
956 this->join_sta_bss
= i
;
957 if (this->join_sta_bss
== this->bss_cnt
) {
958 if (this->net_type
== IW_MODE_INFRA
)
959 wl3501_mgmt_scan(this, 100);
962 if (this->adhoc_times
> WL3501_MAX_ADHOC_TRIES
)
963 wl3501_mgmt_start(this);
965 wl3501_mgmt_scan(this, 100);
971 static inline void wl3501_alarm_interrupt(struct net_device
*dev
,
972 struct wl3501_card
*this)
974 if (this->net_type
== IW_MODE_INFRA
) {
975 printk(KERN_INFO
"Wireless LAN offline\n");
976 netif_stop_queue(dev
);
977 wl3501_mgmt_resync(this);
981 static inline void wl3501_md_confirm_interrupt(struct net_device
*dev
,
982 struct wl3501_card
*this,
985 struct wl3501_md_confirm sig
;
988 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
989 wl3501_free_tx_buffer(this, sig
.data
);
990 if (netif_queue_stopped(dev
))
991 netif_wake_queue(dev
);
994 static inline void wl3501_md_ind_interrupt(struct net_device
*dev
,
995 struct wl3501_card
*this, u16 addr
)
997 struct wl3501_md_ind sig
;
999 u8 rssi
, addr4
[ETH_ALEN
];
1002 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
1003 this->start_seg
= sig
.data
;
1004 wl3501_get_from_wla(this,
1005 sig
.data
+ offsetof(struct wl3501_rx_hdr
, rssi
),
1006 &rssi
, sizeof(rssi
));
1007 this->rssi
= rssi
<= 63 ? (rssi
* 100) / 64 : 255;
1009 wl3501_get_from_wla(this,
1011 offsetof(struct wl3501_rx_hdr
, addr4
),
1012 &addr4
, sizeof(addr4
));
1013 if (!(addr4
[0] == 0xAA && addr4
[1] == 0xAA &&
1014 addr4
[2] == 0x03 && addr4
[4] == 0x00)) {
1015 printk(KERN_INFO
"Insupported packet type!\n");
1018 pkt_len
= sig
.size
+ 12 - 24 - 4 - 6;
1020 skb
= dev_alloc_skb(pkt_len
+ 5);
1023 printk(KERN_WARNING
"%s: Can't alloc a sk_buff of size %d.\n",
1024 dev
->name
, pkt_len
);
1025 this->stats
.rx_dropped
++;
1028 skb_reserve(skb
, 2); /* IP headers on 16 bytes boundaries */
1029 eth_copy_and_sum(skb
, (unsigned char *)&sig
.daddr
, 12, 0);
1030 wl3501_receive(this, skb
->data
, pkt_len
);
1031 skb_put(skb
, pkt_len
);
1032 skb
->protocol
= eth_type_trans(skb
, dev
);
1033 dev
->last_rx
= jiffies
;
1034 this->stats
.rx_packets
++;
1035 this->stats
.rx_bytes
+= skb
->len
;
1040 static inline void wl3501_get_confirm_interrupt(struct wl3501_card
*this,
1041 u16 addr
, void *sig
, int size
)
1043 dprintk(3, "entry");
1044 wl3501_get_from_wla(this, addr
, &this->sig_get_confirm
,
1045 sizeof(this->sig_get_confirm
));
1046 wake_up(&this->wait
);
1049 static inline void wl3501_start_confirm_interrupt(struct net_device
*dev
,
1050 struct wl3501_card
*this,
1053 struct wl3501_start_confirm sig
;
1055 dprintk(3, "entry");
1056 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
1057 if (sig
.status
== WL3501_STATUS_SUCCESS
)
1058 netif_wake_queue(dev
);
1061 static inline void wl3501_assoc_confirm_interrupt(struct net_device
*dev
,
1064 struct wl3501_card
*this = dev
->priv
;
1065 struct wl3501_assoc_confirm sig
;
1067 dprintk(3, "entry");
1068 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
1070 if (sig
.status
== WL3501_STATUS_SUCCESS
)
1074 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card
*this,
1077 struct wl3501_auth_confirm sig
;
1079 dprintk(3, "entry");
1080 wl3501_get_from_wla(this, addr
, &sig
, sizeof(sig
));
1082 if (sig
.status
== WL3501_STATUS_SUCCESS
)
1083 wl3501_mgmt_association(this);
1085 wl3501_mgmt_resync(this);
1088 static inline void wl3501_rx_interrupt(struct net_device
*dev
)
1093 struct wl3501_card
*this = dev
->priv
;
1095 dprintk(3, "entry");
1098 if (!wl3501_esbq_confirm(this))
1100 wl3501_get_from_wla(this, this->esbq_confirm
, &addr
, sizeof(addr
));
1101 wl3501_get_from_wla(this, addr
+ 2, &sig_id
, sizeof(sig_id
));
1104 case WL3501_SIG_DEAUTH_IND
:
1105 case WL3501_SIG_DISASSOC_IND
:
1106 case WL3501_SIG_ALARM
:
1107 wl3501_alarm_interrupt(dev
, this);
1109 case WL3501_SIG_MD_CONFIRM
:
1110 wl3501_md_confirm_interrupt(dev
, this, addr
);
1112 case WL3501_SIG_MD_IND
:
1113 wl3501_md_ind_interrupt(dev
, this, addr
);
1115 case WL3501_SIG_GET_CONFIRM
:
1116 wl3501_get_confirm_interrupt(this, addr
,
1117 &this->sig_get_confirm
,
1118 sizeof(this->sig_get_confirm
));
1120 case WL3501_SIG_PWR_MGMT_CONFIRM
:
1121 wl3501_get_confirm_interrupt(this, addr
,
1122 &this->sig_pwr_mgmt_confirm
,
1123 sizeof(this->sig_pwr_mgmt_confirm
));
1125 case WL3501_SIG_START_CONFIRM
:
1126 wl3501_start_confirm_interrupt(dev
, this, addr
);
1128 case WL3501_SIG_SCAN_CONFIRM
:
1129 wl3501_mgmt_scan_confirm(this, addr
);
1131 case WL3501_SIG_JOIN_CONFIRM
:
1132 wl3501_mgmt_join_confirm(dev
, addr
);
1134 case WL3501_SIG_ASSOC_CONFIRM
:
1135 wl3501_assoc_confirm_interrupt(dev
, addr
);
1137 case WL3501_SIG_AUTH_CONFIRM
:
1138 wl3501_auth_confirm_interrupt(this, addr
);
1140 case WL3501_SIG_RESYNC_CONFIRM
:
1141 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1144 wl3501_esbq_confirm_done(this);
1146 /* free request if necessary */
1148 wl3501_esbq_req_free(this);
1153 static inline void wl3501_ack_interrupt(struct wl3501_card
*this)
1155 wl3501_outb(WL3501_GCR_ECINT
, this->base_addr
+ WL3501_NIC_GCR
);
1159 * wl3501_interrupt - Hardware interrupt from card.
1160 * @irq - Interrupt number
1161 * @dev_id - net_device
1164 * We must acknowledge the interrupt as soon as possible, and block the
1165 * interrupt from the same card immediately to prevent re-entry.
1167 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1168 * On the other hand, to prevent SUTRO from malfunctioning, we must
1169 * unlock the SUTRO as soon as possible.
1171 static irqreturn_t
wl3501_interrupt(int irq
, void *dev_id
, struct pt_regs
*regs
)
1173 struct net_device
*dev
= (struct net_device
*)dev_id
;
1174 struct wl3501_card
*this;
1180 spin_lock(&this->lock
);
1181 wl3501_ack_interrupt(this);
1182 wl3501_block_interrupt(this);
1183 wl3501_rx_interrupt(dev
);
1184 wl3501_unblock_interrupt(this);
1185 spin_unlock(&this->lock
);
1187 return IRQ_RETVAL(handled
);
1190 printk(KERN_ERR
"%s: irq %d for unknown device.\n", __FUNCTION__
, irq
);
1194 static int wl3501_reset_board(struct wl3501_card
*this)
1200 wl3501_outb_p(WL3501_GCR_CORESET
, this->base_addr
+ WL3501_NIC_GCR
);
1201 wl3501_outb_p(0, this->base_addr
+ WL3501_NIC_GCR
);
1202 wl3501_outb_p(WL3501_GCR_CORESET
, this->base_addr
+ WL3501_NIC_GCR
);
1204 /* Reset SRAM 0x480 to zero */
1205 wl3501_set_to_wla(this, 0x480, &tmp
, sizeof(tmp
));
1208 wl3501_outb_p(0, this->base_addr
+ WL3501_NIC_GCR
);
1210 WL3501_NOPLOOP(1024 * 50);
1212 wl3501_unblock_interrupt(this); /* acme: was commented */
1214 /* Polling Self_Test_Status */
1215 for (i
= 0; i
< 10000; i
++) {
1216 wl3501_get_from_wla(this, 0x480, &tmp
, sizeof(tmp
));
1219 /* firmware complete all test successfully */
1221 wl3501_set_to_wla(this, 0x480, &tmp
, sizeof(tmp
));
1226 printk(KERN_WARNING
"%s: failed to reset the board!\n", __FUNCTION__
);
1232 static int wl3501_init_firmware(struct wl3501_card
*this)
1235 int rc
= wl3501_reset_board(this);
1239 this->card_name
[0] = '\0';
1240 wl3501_get_from_wla(this, 0x1a00,
1241 this->card_name
, sizeof(this->card_name
));
1242 this->card_name
[sizeof(this->card_name
) - 1] = '\0';
1243 this->firmware_date
[0] = '\0';
1244 wl3501_get_from_wla(this, 0x1a40,
1245 this->firmware_date
, sizeof(this->firmware_date
));
1246 this->firmware_date
[sizeof(this->firmware_date
) - 1] = '\0';
1247 /* Switch to SRAM Page 0 */
1248 wl3501_switch_page(this, WL3501_BSS_SPAGE0
);
1249 /* Read parameter from card */
1250 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start
, 2);
1251 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end
, 2);
1252 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start
, 2);
1253 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end
, 2);
1254 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head
, 2);
1255 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size
, 2);
1256 this->esbq_req_tail
= this->esbq_req_head
= this->esbq_req_start
;
1257 this->esbq_req_end
+= this->esbq_req_start
;
1258 this->esbq_confirm
= this->esbq_confirm_start
;
1259 this->esbq_confirm_end
+= this->esbq_confirm_start
;
1260 /* Initial Tx Buffer */
1261 this->tx_buffer_cnt
= 1;
1262 ptr
= this->tx_buffer_head
;
1263 next
= ptr
+ WL3501_BLKSZ
;
1264 while ((next
- this->tx_buffer_head
) < this->tx_buffer_size
) {
1265 this->tx_buffer_cnt
++;
1266 wl3501_set_to_wla(this, ptr
, &next
, sizeof(next
));
1268 next
= ptr
+ WL3501_BLKSZ
;
1272 wl3501_set_to_wla(this, ptr
, &next
, sizeof(next
));
1273 this->tx_buffer_tail
= ptr
;
1277 printk(KERN_WARNING
"%s: failed!\n", __FUNCTION__
);
1281 static int wl3501_close(struct net_device
*dev
)
1283 struct wl3501_card
*this = dev
->priv
;
1285 unsigned long flags
;
1288 spin_lock_irqsave(&this->lock
, flags
);
1289 /* Check if the device is in wl3501_dev_list */
1290 for (link
= wl3501_dev_list
; link
; link
= link
->next
)
1291 if (link
->priv
== dev
)
1297 /* Stop wl3501_hard_start_xmit() from now on */
1298 netif_stop_queue(dev
);
1299 wl3501_ack_interrupt(this);
1301 /* Mask interrupts from the SUTRO */
1302 wl3501_block_interrupt(this);
1305 printk(KERN_INFO
"%s: WL3501 closed\n", dev
->name
);
1307 spin_unlock_irqrestore(&this->lock
, flags
);
1312 * wl3501_reset - Reset the SUTRO.
1313 * @dev - network device
1315 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1316 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1317 * is running. It seems to be dangerous.
1319 static int wl3501_reset(struct net_device
*dev
)
1321 struct wl3501_card
*this = dev
->priv
;
1324 wl3501_block_interrupt(this);
1326 if (wl3501_init_firmware(this)) {
1327 printk(KERN_WARNING
"%s: Can't initialize Firmware!\n",
1329 /* Free IRQ, and mark IRQ as unused */
1330 free_irq(dev
->irq
, dev
);
1335 * Queue has to be started only when the Card is Started
1337 netif_stop_queue(dev
);
1338 this->adhoc_times
= 0;
1339 wl3501_ack_interrupt(this);
1340 wl3501_unblock_interrupt(this);
1341 wl3501_mgmt_scan(this, 100);
1342 dprintk(1, "%s: device reset", dev
->name
);
1348 static void wl3501_tx_timeout(struct net_device
*dev
)
1350 struct wl3501_card
*this = dev
->priv
;
1351 struct net_device_stats
*stats
= &this->stats
;
1352 unsigned long flags
;
1356 spin_lock_irqsave(&this->lock
, flags
);
1357 rc
= wl3501_reset(dev
);
1358 spin_unlock_irqrestore(&this->lock
, flags
);
1360 printk(KERN_ERR
"%s: Error %d resetting card on Tx timeout!\n",
1363 dev
->trans_start
= jiffies
;
1364 netif_wake_queue(dev
);
1370 * 1 - Could not transmit (dev_queue_xmit will queue it)
1371 * and try to sent it later
1373 static int wl3501_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1376 struct wl3501_card
*this = dev
->priv
;
1377 unsigned long flags
;
1379 spin_lock_irqsave(&this->lock
, flags
);
1380 enabled
= wl3501_block_interrupt(this);
1381 dev
->trans_start
= jiffies
;
1382 rc
= wl3501_send_pkt(this, skb
->data
, skb
->len
);
1384 wl3501_unblock_interrupt(this);
1386 ++this->stats
.tx_dropped
;
1387 netif_stop_queue(dev
);
1389 ++this->stats
.tx_packets
;
1390 this->stats
.tx_bytes
+= skb
->len
;
1393 if (this->tx_buffer_cnt
< 2)
1394 netif_stop_queue(dev
);
1396 spin_unlock_irqrestore(&this->lock
, flags
);
1400 static int wl3501_open(struct net_device
*dev
)
1403 struct wl3501_card
*this = dev
->priv
;
1404 unsigned long flags
;
1407 spin_lock_irqsave(&this->lock
, flags
);
1408 /* Check if the device is in wl3501_dev_list */
1409 for (link
= wl3501_dev_list
; link
; link
= link
->next
)
1410 if (link
->priv
== dev
)
1414 netif_device_attach(dev
);
1417 /* Initial WL3501 firmware */
1418 dprintk(1, "%s: Initialize WL3501 firmware...", dev
->name
);
1419 if (wl3501_init_firmware(this))
1421 /* Initial device variables */
1422 this->adhoc_times
= 0;
1423 /* Acknowledge Interrupt, for cleaning last state */
1424 wl3501_ack_interrupt(this);
1426 /* Enable interrupt from card after all */
1427 wl3501_unblock_interrupt(this);
1428 wl3501_mgmt_scan(this, 100);
1430 dprintk(1, "%s: WL3501 opened", dev
->name
);
1431 printk(KERN_INFO
"%s: Card Name: %s\n"
1432 "%s: Firmware Date: %s\n",
1433 dev
->name
, this->card_name
,
1434 dev
->name
, this->firmware_date
);
1436 spin_unlock_irqrestore(&this->lock
, flags
);
1439 printk(KERN_WARNING
"%s: Can't initialize firmware!\n", dev
->name
);
1443 static struct net_device_stats
*wl3501_get_stats(struct net_device
*dev
)
1445 struct wl3501_card
*this = dev
->priv
;
1447 return &this->stats
;
1450 static struct iw_statistics
*wl3501_get_wireless_stats(struct net_device
*dev
)
1452 struct wl3501_card
*this = dev
->priv
;
1453 struct iw_statistics
*wstats
= &this->wstats
;
1454 u32 value
; /* size checked: it is u32 */
1456 memset(wstats
, 0, sizeof(*wstats
));
1457 wstats
->status
= netif_running(dev
);
1458 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT
,
1459 &value
, sizeof(value
)))
1460 wstats
->discard
.code
+= value
;
1461 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT
,
1462 &value
, sizeof(value
)))
1463 wstats
->discard
.code
+= value
;
1464 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT
,
1465 &value
, sizeof(value
)))
1466 wstats
->discard
.code
+= value
;
1467 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT
,
1468 &value
, sizeof(value
)))
1469 wstats
->discard
.retries
= value
;
1470 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT
,
1471 &value
, sizeof(value
)))
1472 wstats
->discard
.misc
+= value
;
1473 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT
,
1474 &value
, sizeof(value
)))
1475 wstats
->discard
.misc
+= value
;
1476 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT
,
1477 &value
, sizeof(value
)))
1478 wstats
->discard
.misc
+= value
;
1479 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT
,
1480 &value
, sizeof(value
)))
1481 wstats
->discard
.misc
+= value
;
1485 static void wl3501_get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
1487 strlcpy(info
->driver
, wl3501_dev_info
, sizeof(info
->driver
));
1490 static struct ethtool_ops ops
= {
1491 .get_drvinfo
= wl3501_get_drvinfo
1495 * wl3501_detach - deletes a driver "instance"
1498 * This deletes a driver "instance". The device is de-registered with Card
1499 * Services. If it has been released, all local data structures are freed.
1500 * Otherwise, the structures will be freed when the device is released.
1502 static void wl3501_detach(dev_link_t
*link
)
1506 /* Locate device structure */
1507 for (linkp
= &wl3501_dev_list
; *linkp
; linkp
= &(*linkp
)->next
)
1513 /* If the device is currently configured and active, we won't actually
1514 * delete it yet. Instead, it is marked so that when the release()
1515 * function is called, that will trigger a proper detach(). */
1517 if (link
->state
& DEV_CONFIG
) {
1519 printk(KERN_DEBUG
"wl3501_cs: detach postponed, '%s' "
1520 "still locked\n", link
->dev
->dev_name
);
1525 /* Break the link with Card Services */
1527 pcmcia_deregister_client(link
->handle
);
1529 /* Unlink device structure, free pieces */
1530 *linkp
= link
->next
;
1533 free_netdev(link
->priv
);
1539 static int wl3501_get_name(struct net_device
*dev
, struct iw_request_info
*info
,
1540 union iwreq_data
*wrqu
, char *extra
)
1542 strlcpy(wrqu
->name
, "IEEE 802.11-DS", sizeof(wrqu
->name
));
1546 static int wl3501_set_freq(struct net_device
*dev
, struct iw_request_info
*info
,
1547 union iwreq_data
*wrqu
, char *extra
)
1549 struct wl3501_card
*this = dev
->priv
;
1550 int channel
= wrqu
->freq
.m
;
1553 if (iw_valid_channel(this->reg_domain
, channel
)) {
1554 this->chan
= channel
;
1555 rc
= wl3501_reset(dev
);
1560 static int wl3501_get_freq(struct net_device
*dev
, struct iw_request_info
*info
,
1561 union iwreq_data
*wrqu
, char *extra
)
1563 struct wl3501_card
*this = dev
->priv
;
1565 wrqu
->freq
.m
= wl3501_chan2freq
[this->chan
- 1] * 100000;
1570 static int wl3501_set_mode(struct net_device
*dev
, struct iw_request_info
*info
,
1571 union iwreq_data
*wrqu
, char *extra
)
1575 if (wrqu
->mode
== IW_MODE_INFRA
||
1576 wrqu
->mode
== IW_MODE_ADHOC
||
1577 wrqu
->mode
== IW_MODE_AUTO
) {
1578 struct wl3501_card
*this = dev
->priv
;
1580 this->net_type
= wrqu
->mode
;
1581 rc
= wl3501_reset(dev
);
1586 static int wl3501_get_mode(struct net_device
*dev
, struct iw_request_info
*info
,
1587 union iwreq_data
*wrqu
, char *extra
)
1589 struct wl3501_card
*this = dev
->priv
;
1591 wrqu
->mode
= this->net_type
;
1595 static int wl3501_get_sens(struct net_device
*dev
, struct iw_request_info
*info
,
1596 union iwreq_data
*wrqu
, char *extra
)
1598 struct wl3501_card
*this = dev
->priv
;
1600 wrqu
->sens
.value
= this->rssi
;
1601 wrqu
->sens
.disabled
= !wrqu
->sens
.value
;
1602 wrqu
->sens
.fixed
= 1;
1606 static int wl3501_get_range(struct net_device
*dev
,
1607 struct iw_request_info
*info
,
1608 union iwreq_data
*wrqu
, char *extra
)
1610 struct iw_range
*range
= (struct iw_range
*)extra
;
1612 /* Set the length (very important for backward compatibility) */
1613 wrqu
->data
.length
= sizeof(*range
);
1615 /* Set all the info we don't care or don't know about to zero */
1616 memset(range
, 0, sizeof(*range
));
1618 /* Set the Wireless Extension versions */
1619 range
->we_version_compiled
= WIRELESS_EXT
;
1620 range
->we_version_source
= 1;
1621 range
->throughput
= 2 * 1000 * 1000; /* ~2 Mb/s */
1622 /* FIXME: study the code to fill in more fields... */
1626 static int wl3501_set_wap(struct net_device
*dev
, struct iw_request_info
*info
,
1627 union iwreq_data
*wrqu
, char *extra
)
1629 struct wl3501_card
*this = dev
->priv
;
1630 static const u8 bcast
[ETH_ALEN
] = { 255, 255, 255, 255, 255, 255 };
1633 /* FIXME: we support other ARPHRDs...*/
1634 if (wrqu
->ap_addr
.sa_family
!= ARPHRD_ETHER
)
1636 if (!memcmp(bcast
, wrqu
->ap_addr
.sa_data
, ETH_ALEN
)) {
1637 /* FIXME: rescan? */
1639 memcpy(this->bssid
, wrqu
->ap_addr
.sa_data
, ETH_ALEN
);
1640 /* FIXME: rescan? deassoc & scan? */
1646 static int wl3501_get_wap(struct net_device
*dev
, struct iw_request_info
*info
,
1647 union iwreq_data
*wrqu
, char *extra
)
1649 struct wl3501_card
*this = dev
->priv
;
1651 wrqu
->ap_addr
.sa_family
= ARPHRD_ETHER
;
1652 memcpy(wrqu
->ap_addr
.sa_data
, this->bssid
, ETH_ALEN
);
1656 static int wl3501_set_scan(struct net_device
*dev
, struct iw_request_info
*info
,
1657 union iwreq_data
*wrqu
, char *extra
)
1660 * FIXME: trigger scanning with a reset, yes, I'm lazy
1662 return wl3501_reset(dev
);
1665 static int wl3501_get_scan(struct net_device
*dev
, struct iw_request_info
*info
,
1666 union iwreq_data
*wrqu
, char *extra
)
1668 struct wl3501_card
*this = dev
->priv
;
1670 char *current_ev
= extra
;
1671 struct iw_event iwe
;
1673 for (i
= 0; i
< this->bss_cnt
; ++i
) {
1674 iwe
.cmd
= SIOCGIWAP
;
1675 iwe
.u
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1676 memcpy(iwe
.u
.ap_addr
.sa_data
, this->bss_set
[i
].bssid
, ETH_ALEN
);
1677 current_ev
= iwe_stream_add_event(current_ev
,
1678 extra
+ IW_SCAN_MAX_DATA
,
1679 &iwe
, IW_EV_ADDR_LEN
);
1680 iwe
.cmd
= SIOCGIWESSID
;
1681 iwe
.u
.data
.flags
= 1;
1682 iwe
.u
.data
.length
= this->bss_set
[i
].ssid
.el
.len
;
1683 current_ev
= iwe_stream_add_point(current_ev
,
1684 extra
+ IW_SCAN_MAX_DATA
,
1686 this->bss_set
[i
].ssid
.essid
);
1687 iwe
.cmd
= SIOCGIWMODE
;
1688 iwe
.u
.mode
= this->bss_set
[i
].bss_type
;
1689 current_ev
= iwe_stream_add_event(current_ev
,
1690 extra
+ IW_SCAN_MAX_DATA
,
1691 &iwe
, IW_EV_UINT_LEN
);
1692 iwe
.cmd
= SIOCGIWFREQ
;
1693 iwe
.u
.freq
.m
= this->bss_set
[i
].ds_pset
.chan
;
1695 current_ev
= iwe_stream_add_event(current_ev
,
1696 extra
+ IW_SCAN_MAX_DATA
,
1697 &iwe
, IW_EV_FREQ_LEN
);
1698 iwe
.cmd
= SIOCGIWENCODE
;
1699 if (this->bss_set
[i
].cap_info
& WL3501_MGMT_CAPABILITY_PRIVACY
)
1700 iwe
.u
.data
.flags
= IW_ENCODE_ENABLED
| IW_ENCODE_NOKEY
;
1702 iwe
.u
.data
.flags
= IW_ENCODE_DISABLED
;
1703 iwe
.u
.data
.length
= 0;
1704 current_ev
= iwe_stream_add_point(current_ev
,
1705 extra
+ IW_SCAN_MAX_DATA
,
1708 /* Length of data */
1709 wrqu
->data
.length
= (current_ev
- extra
);
1710 wrqu
->data
.flags
= 0; /* FIXME: set properly these flags */
1714 static int wl3501_set_essid(struct net_device
*dev
,
1715 struct iw_request_info
*info
,
1716 union iwreq_data
*wrqu
, char *extra
)
1718 struct wl3501_card
*this = dev
->priv
;
1720 if (wrqu
->data
.flags
) {
1721 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID
,
1723 extra
, wrqu
->data
.length
);
1724 } else { /* We accept any ESSID */
1725 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID
,
1726 &this->essid
.el
, "ANY", 3);
1728 return wl3501_reset(dev
);
1731 static int wl3501_get_essid(struct net_device
*dev
,
1732 struct iw_request_info
*info
,
1733 union iwreq_data
*wrqu
, char *extra
)
1735 struct wl3501_card
*this = dev
->priv
;
1736 unsigned long flags
;
1738 spin_lock_irqsave(&this->lock
, flags
);
1739 wrqu
->essid
.flags
= 1;
1740 wrqu
->essid
.length
= this->essid
.el
.len
;
1741 memcpy(extra
, this->essid
.essid
, this->essid
.el
.len
);
1742 spin_unlock_irqrestore(&this->lock
, flags
);
1746 static int wl3501_set_nick(struct net_device
*dev
, struct iw_request_info
*info
,
1747 union iwreq_data
*wrqu
, char *extra
)
1749 struct wl3501_card
*this = dev
->priv
;
1751 if (wrqu
->data
.length
> sizeof(this->nick
))
1753 strlcpy(this->nick
, extra
, wrqu
->data
.length
);
1757 static int wl3501_get_nick(struct net_device
*dev
, struct iw_request_info
*info
,
1758 union iwreq_data
*wrqu
, char *extra
)
1760 struct wl3501_card
*this = dev
->priv
;
1762 strlcpy(extra
, this->nick
, 32);
1763 wrqu
->data
.length
= strlen(extra
);
1767 static int wl3501_get_rate(struct net_device
*dev
, struct iw_request_info
*info
,
1768 union iwreq_data
*wrqu
, char *extra
)
1771 * FIXME: have to see from where to get this info, perhaps this card
1772 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1773 * common with the Planet Access Points. -acme
1775 wrqu
->bitrate
.value
= 2000000;
1776 wrqu
->bitrate
.fixed
= 1;
1780 static int wl3501_get_rts_threshold(struct net_device
*dev
,
1781 struct iw_request_info
*info
,
1782 union iwreq_data
*wrqu
, char *extra
)
1784 u16 threshold
; /* size checked: it is u16 */
1785 struct wl3501_card
*this = dev
->priv
;
1786 int rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD
,
1787 &threshold
, sizeof(threshold
));
1789 wrqu
->rts
.value
= threshold
;
1790 wrqu
->rts
.disabled
= threshold
>= 2347;
1791 wrqu
->rts
.fixed
= 1;
1796 static int wl3501_get_frag_threshold(struct net_device
*dev
,
1797 struct iw_request_info
*info
,
1798 union iwreq_data
*wrqu
, char *extra
)
1800 u16 threshold
; /* size checked: it is u16 */
1801 struct wl3501_card
*this = dev
->priv
;
1802 int rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD
,
1803 &threshold
, sizeof(threshold
));
1805 wrqu
->frag
.value
= threshold
;
1806 wrqu
->frag
.disabled
= threshold
>= 2346;
1807 wrqu
->frag
.fixed
= 1;
1812 static int wl3501_get_txpow(struct net_device
*dev
,
1813 struct iw_request_info
*info
,
1814 union iwreq_data
*wrqu
, char *extra
)
1817 struct wl3501_card
*this = dev
->priv
;
1818 int rc
= wl3501_get_mib_value(this,
1819 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL
,
1820 &txpow
, sizeof(txpow
));
1822 wrqu
->txpower
.value
= txpow
;
1823 wrqu
->txpower
.disabled
= 0;
1825 * From the MIB values I think this can be configurable,
1826 * as it lists several tx power levels -acme
1828 wrqu
->txpower
.fixed
= 0;
1829 wrqu
->txpower
.flags
= IW_TXPOW_MWATT
;
1834 static int wl3501_get_retry(struct net_device
*dev
,
1835 struct iw_request_info
*info
,
1836 union iwreq_data
*wrqu
, char *extra
)
1838 u8 retry
; /* size checked: it is u8 */
1839 struct wl3501_card
*this = dev
->priv
;
1840 int rc
= wl3501_get_mib_value(this,
1841 WL3501_MIB_ATTR_LONG_RETRY_LIMIT
,
1842 &retry
, sizeof(retry
));
1845 if (wrqu
->retry
.flags
& IW_RETRY_MAX
) {
1846 wrqu
->retry
.flags
= IW_RETRY_LIMIT
| IW_RETRY_MAX
;
1849 rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT
,
1850 &retry
, sizeof(retry
));
1853 wrqu
->retry
.flags
= IW_RETRY_LIMIT
| IW_RETRY_MIN
;
1855 wrqu
->retry
.value
= retry
;
1856 wrqu
->retry
.disabled
= 0;
1861 static int wl3501_get_encode(struct net_device
*dev
,
1862 struct iw_request_info
*info
,
1863 union iwreq_data
*wrqu
, char *extra
)
1865 u8 implemented
, restricted
, keys
[100], len_keys
, tocopy
;
1866 struct wl3501_card
*this = dev
->priv
;
1867 int rc
= wl3501_get_mib_value(this,
1868 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED
,
1869 &implemented
, sizeof(implemented
));
1873 wrqu
->encoding
.flags
= IW_ENCODE_DISABLED
;
1876 rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED
,
1877 &restricted
, sizeof(restricted
));
1880 wrqu
->encoding
.flags
= restricted
? IW_ENCODE_RESTRICTED
:
1882 rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN
,
1883 &len_keys
, sizeof(len_keys
));
1886 rc
= wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS
,
1890 tocopy
= min_t(u8
, len_keys
, wrqu
->encoding
.length
);
1891 tocopy
= min_t(u8
, tocopy
, 100);
1892 wrqu
->encoding
.length
= tocopy
;
1893 memset(extra
, 0, tocopy
);
1894 memcpy(extra
, keys
, tocopy
);
1899 static int wl3501_get_power(struct net_device
*dev
,
1900 struct iw_request_info
*info
,
1901 union iwreq_data
*wrqu
, char *extra
)
1904 struct wl3501_card
*this = dev
->priv
;
1905 int rc
= wl3501_get_mib_value(this,
1906 WL3501_MIB_ATTR_CURRENT_PWR_STATE
,
1907 &pwr_state
, sizeof(pwr_state
));
1910 wrqu
->power
.disabled
= !pwr_state
;
1911 wrqu
->power
.flags
= IW_POWER_ON
;
1916 static const iw_handler wl3501_handler
[] = {
1917 [SIOCGIWNAME
- SIOCIWFIRST
] = wl3501_get_name
,
1918 [SIOCSIWFREQ
- SIOCIWFIRST
] = wl3501_set_freq
,
1919 [SIOCGIWFREQ
- SIOCIWFIRST
] = wl3501_get_freq
,
1920 [SIOCSIWMODE
- SIOCIWFIRST
] = wl3501_set_mode
,
1921 [SIOCGIWMODE
- SIOCIWFIRST
] = wl3501_get_mode
,
1922 [SIOCGIWSENS
- SIOCIWFIRST
] = wl3501_get_sens
,
1923 [SIOCGIWRANGE
- SIOCIWFIRST
] = wl3501_get_range
,
1924 [SIOCSIWSPY
- SIOCIWFIRST
] = iw_handler_set_spy
,
1925 [SIOCGIWSPY
- SIOCIWFIRST
] = iw_handler_get_spy
,
1926 [SIOCSIWTHRSPY
- SIOCIWFIRST
] = iw_handler_set_thrspy
,
1927 [SIOCGIWTHRSPY
- SIOCIWFIRST
] = iw_handler_get_thrspy
,
1928 [SIOCSIWAP
- SIOCIWFIRST
] = wl3501_set_wap
,
1929 [SIOCGIWAP
- SIOCIWFIRST
] = wl3501_get_wap
,
1930 [SIOCSIWSCAN
- SIOCIWFIRST
] = wl3501_set_scan
,
1931 [SIOCGIWSCAN
- SIOCIWFIRST
] = wl3501_get_scan
,
1932 [SIOCSIWESSID
- SIOCIWFIRST
] = wl3501_set_essid
,
1933 [SIOCGIWESSID
- SIOCIWFIRST
] = wl3501_get_essid
,
1934 [SIOCSIWNICKN
- SIOCIWFIRST
] = wl3501_set_nick
,
1935 [SIOCGIWNICKN
- SIOCIWFIRST
] = wl3501_get_nick
,
1936 [SIOCGIWRATE
- SIOCIWFIRST
] = wl3501_get_rate
,
1937 [SIOCGIWRTS
- SIOCIWFIRST
] = wl3501_get_rts_threshold
,
1938 [SIOCGIWFRAG
- SIOCIWFIRST
] = wl3501_get_frag_threshold
,
1939 [SIOCGIWTXPOW
- SIOCIWFIRST
] = wl3501_get_txpow
,
1940 [SIOCGIWRETRY
- SIOCIWFIRST
] = wl3501_get_retry
,
1941 [SIOCGIWENCODE
- SIOCIWFIRST
] = wl3501_get_encode
,
1942 [SIOCGIWPOWER
- SIOCIWFIRST
] = wl3501_get_power
,
1945 static const struct iw_handler_def wl3501_handler_def
= {
1946 .num_standard
= sizeof(wl3501_handler
) / sizeof(iw_handler
),
1947 .standard
= (iw_handler
*)wl3501_handler
,
1948 .spy_offset
= offsetof(struct wl3501_card
, spy_data
),
1952 * wl3501_attach - creates an "instance" of the driver
1954 * Creates an "instance" of the driver, allocating local data structures for
1955 * one device. The device is registered with Card Services.
1957 * The dev_link structure is initialized, but we don't actually configure the
1958 * card at this point -- we wait until we receive a card insertion event.
1960 static dev_link_t
*wl3501_attach(void)
1962 client_reg_t client_reg
;
1964 struct net_device
*dev
;
1967 /* Initialize the dev_link_t structure */
1968 link
= kmalloc(sizeof(*link
), GFP_KERNEL
);
1971 memset(link
, 0, sizeof(struct dev_link_t
));
1973 /* The io structure describes IO port mapping */
1974 link
->io
.NumPorts1
= 16;
1975 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_8
;
1976 link
->io
.IOAddrLines
= 5;
1978 /* Interrupt setup */
1979 link
->irq
.Attributes
= IRQ_TYPE_EXCLUSIVE
| IRQ_HANDLE_PRESENT
;
1980 link
->irq
.IRQInfo1
= IRQ_LEVEL_ID
;
1981 link
->irq
.Handler
= wl3501_interrupt
;
1983 /* General socket configuration */
1984 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
1985 link
->conf
.Vcc
= 50;
1986 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
1987 link
->conf
.ConfigIndex
= 1;
1988 link
->conf
.Present
= PRESENT_OPTION
;
1990 dev
= alloc_etherdev(sizeof(struct wl3501_card
));
1993 dev
->open
= wl3501_open
;
1994 dev
->stop
= wl3501_close
;
1995 dev
->hard_start_xmit
= wl3501_hard_start_xmit
;
1996 dev
->tx_timeout
= wl3501_tx_timeout
;
1997 dev
->watchdog_timeo
= 5 * HZ
;
1998 dev
->get_stats
= wl3501_get_stats
;
1999 dev
->get_wireless_stats
= wl3501_get_wireless_stats
;
2000 dev
->wireless_handlers
= (struct iw_handler_def
*)&wl3501_handler_def
;
2001 SET_ETHTOOL_OPS(dev
, &ops
);
2002 netif_stop_queue(dev
);
2003 link
->priv
= link
->irq
.Instance
= dev
;
2005 /* Register with Card Services */
2006 link
->next
= wl3501_dev_list
;
2007 wl3501_dev_list
= link
;
2008 client_reg
.dev_info
= &wl3501_dev_info
;
2009 client_reg
.EventMask
= CS_EVENT_CARD_INSERTION
|
2010 CS_EVENT_RESET_PHYSICAL
|
2011 CS_EVENT_CARD_RESET
|
2012 CS_EVENT_CARD_REMOVAL
|
2013 CS_EVENT_PM_SUSPEND
|
2015 client_reg
.event_handler
= wl3501_event
;
2016 client_reg
.Version
= 0x0210;
2017 client_reg
.event_callback_args
.client_data
= link
;
2018 ret
= pcmcia_register_client(&link
->handle
, &client_reg
);
2020 cs_error(link
->handle
, RegisterClient
, ret
);
2021 wl3501_detach(link
);
2032 #define CS_CHECK(fn, ret) \
2033 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
2036 * wl3501_config - configure the PCMCIA socket and make eth device available
2039 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
2040 * received, to configure the PCMCIA socket, and to make the ethernet device
2041 * available to the system.
2043 static void wl3501_config(dev_link_t
*link
)
2047 client_handle_t handle
= link
->handle
;
2048 struct net_device
*dev
= link
->priv
;
2049 int i
= 0, j
, last_fn
, last_ret
;
2050 unsigned char bf
[64];
2051 struct wl3501_card
*this;
2053 /* This reads the card's CONFIG tuple to find its config registers. */
2054 tuple
.Attributes
= 0;
2055 tuple
.DesiredTuple
= CISTPL_CONFIG
;
2056 CS_CHECK(GetFirstTuple
, pcmcia_get_first_tuple(handle
, &tuple
));
2057 tuple
.TupleData
= bf
;
2058 tuple
.TupleDataMax
= sizeof(bf
);
2059 tuple
.TupleOffset
= 0;
2060 CS_CHECK(GetTupleData
, pcmcia_get_tuple_data(handle
, &tuple
));
2061 CS_CHECK(ParseTuple
, pcmcia_parse_tuple(handle
, &tuple
, &parse
));
2062 link
->conf
.ConfigBase
= parse
.config
.base
;
2063 link
->conf
.Present
= parse
.config
.rmask
[0];
2065 /* Configure card */
2066 link
->state
|= DEV_CONFIG
;
2068 /* Try allocating IO ports. This tries a few fixed addresses. If you
2069 * want, you can also read the card's config table to pick addresses --
2070 * see the serial driver for an example. */
2072 for (j
= 0x280; j
< 0x400; j
+= 0x20) {
2073 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
2074 * 0x200-0x2ff, and so on, because this seems safer */
2075 link
->io
.BasePort1
= j
;
2076 link
->io
.BasePort2
= link
->io
.BasePort1
+ 0x10;
2077 i
= pcmcia_request_io(link
->handle
, &link
->io
);
2078 if (i
== CS_SUCCESS
)
2081 if (i
!= CS_SUCCESS
) {
2082 cs_error(link
->handle
, RequestIO
, i
);
2086 /* Now allocate an interrupt line. Note that this does not actually
2087 * assign a handler to the interrupt. */
2089 CS_CHECK(RequestIRQ
, pcmcia_request_irq(link
->handle
, &link
->irq
));
2091 /* This actually configures the PCMCIA socket -- setting up the I/O
2092 * windows and the interrupt mapping. */
2094 CS_CHECK(RequestConfiguration
, pcmcia_request_configuration(link
->handle
, &link
->conf
));
2096 dev
->irq
= link
->irq
.AssignedIRQ
;
2097 dev
->base_addr
= link
->io
.BasePort1
;
2098 SET_NETDEV_DEV(dev
, &handle_to_dev(handle
));
2099 if (register_netdev(dev
)) {
2100 printk(KERN_NOTICE
"wl3501_cs: register_netdev() failed\n");
2104 SET_MODULE_OWNER(dev
);
2108 * At this point, the dev_node_t structure(s) should be initialized and
2109 * arranged in a linked list at link->dev.
2111 link
->dev
= &this->node
;
2112 link
->state
&= ~DEV_CONFIG_PENDING
;
2114 this->base_addr
= dev
->base_addr
;
2116 if (!wl3501_get_flash_mac_addr(this)) {
2117 printk(KERN_WARNING
"%s: Cant read MAC addr in flash ROM?\n",
2121 strcpy(this->node
.dev_name
, dev
->name
);
2123 /* print probe information */
2124 printk(KERN_INFO
"%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:",
2125 dev
->name
, this->base_addr
, (int)dev
->irq
);
2126 for (i
= 0; i
< 6; i
++) {
2127 dev
->dev_addr
[i
] = ((char *)&this->mac_addr
)[i
];
2128 printk("%c%02x", i
? ':' : ' ', dev
->dev_addr
[i
]);
2132 * Initialize card parameters - added by jss
2134 this->net_type
= IW_MODE_INFRA
;
2136 this->join_sta_bss
= 0;
2137 this->adhoc_times
= 0;
2138 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID
, &this->essid
.el
,
2140 this->card_name
[0] = '\0';
2141 this->firmware_date
[0] = '\0';
2143 this->chan
= iw_default_channel(this->reg_domain
);
2144 strlcpy(this->nick
, "Planet WL3501", sizeof(this->nick
));
2145 spin_lock_init(&this->lock
);
2146 init_waitqueue_head(&this->wait
);
2147 netif_start_queue(dev
);
2150 cs_error(link
->handle
, last_fn
, last_ret
);
2152 wl3501_release(link
);
2158 * wl3501_release - unregister the net, release PCMCIA configuration
2161 * After a card is removed, wl3501_release() will unregister the net device,
2162 * and release the PCMCIA configuration. If the device is still open, this
2163 * will be postponed until it is closed.
2165 static void wl3501_release(dev_link_t
*link
)
2167 struct net_device
*dev
= link
->priv
;
2169 /* Unlink the device chain */
2171 unregister_netdev(dev
);
2175 /* Don't bother checking to see if these succeed or not */
2176 pcmcia_release_configuration(link
->handle
);
2177 pcmcia_release_io(link
->handle
, &link
->io
);
2178 pcmcia_release_irq(link
->handle
, &link
->irq
);
2179 link
->state
&= ~DEV_CONFIG
;
2183 * wl3501_event - The card status event handler
2186 * @args - arguments for this event
2188 * The card status event handler. Mostly, this schedules other stuff to run
2189 * after an event is received. A CARD_REMOVAL event also sets some flags to
2190 * discourage the net drivers from trying to talk to the card any more.
2192 * When a CARD_REMOVAL event is received, we immediately set a flag to block
2193 * future accesses to this device. All the functions that actually access the
2194 * device should check this flag to make sure the card is still present.
2196 static int wl3501_event(event_t event
, int pri
, event_callback_args_t
*args
)
2198 dev_link_t
*link
= args
->client_data
;
2199 struct net_device
*dev
= link
->priv
;
2202 case CS_EVENT_CARD_REMOVAL
:
2203 link
->state
&= ~DEV_PRESENT
;
2204 if (link
->state
& DEV_CONFIG
) {
2205 while (link
->open
> 0)
2207 netif_device_detach(dev
);
2208 wl3501_release(link
);
2211 case CS_EVENT_CARD_INSERTION
:
2212 link
->state
|= DEV_PRESENT
| DEV_CONFIG_PENDING
;
2213 wl3501_config(link
);
2215 case CS_EVENT_PM_SUSPEND
:
2216 link
->state
|= DEV_SUSPEND
;
2217 wl3501_pwr_mgmt(dev
->priv
, WL3501_SUSPEND
);
2218 /* Fall through... */
2219 case CS_EVENT_RESET_PHYSICAL
:
2220 if (link
->state
& DEV_CONFIG
) {
2222 netif_device_detach(dev
);
2223 pcmcia_release_configuration(link
->handle
);
2226 case CS_EVENT_PM_RESUME
:
2227 link
->state
&= ~DEV_SUSPEND
;
2228 wl3501_pwr_mgmt(dev
->priv
, WL3501_RESUME
);
2229 /* Fall through... */
2230 case CS_EVENT_CARD_RESET
:
2231 if (link
->state
& DEV_CONFIG
) {
2232 pcmcia_request_configuration(link
->handle
, &link
->conf
);
2235 netif_device_attach(dev
);
2243 static struct pcmcia_driver wl3501_driver
= {
2244 .owner
= THIS_MODULE
,
2246 .name
= "wl3501_cs",
2248 .attach
= wl3501_attach
,
2249 .detach
= wl3501_detach
,
2252 static int __init
wl3501_init_module(void)
2254 return pcmcia_register_driver(&wl3501_driver
);
2257 static void __exit
wl3501_exit_module(void)
2259 dprintk(0, ": unloading");
2260 pcmcia_unregister_driver(&wl3501_driver
);
2261 BUG_ON(wl3501_dev_list
!= NULL
);
2264 module_init(wl3501_init_module
);
2265 module_exit(wl3501_exit_module
);
2267 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2268 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2269 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2270 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2271 MODULE_LICENSE("GPL");