2 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: rt2500usb device specific routines.
24 Supported chipsets: RT2570.
27 #include <linux/delay.h>
28 #include <linux/etherdevice.h>
29 #include <linux/init.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/usb.h>
35 #include "rt2x00usb.h"
36 #include "rt2500usb.h"
39 * Allow hardware encryption to be disabled.
41 static int modparam_nohwcrypt
= 1;
42 module_param_named(nohwcrypt
, modparam_nohwcrypt
, bool, S_IRUGO
);
43 MODULE_PARM_DESC(nohwcrypt
, "Disable hardware encryption.");
47 * All access to the CSR registers will go through the methods
48 * rt2500usb_register_read and rt2500usb_register_write.
49 * BBP and RF register require indirect register access,
50 * and use the CSR registers BBPCSR and RFCSR to achieve this.
51 * These indirect registers work with busy bits,
52 * and we will try maximal REGISTER_BUSY_COUNT times to access
53 * the register while taking a REGISTER_BUSY_DELAY us delay
54 * between each attampt. When the busy bit is still set at that time,
55 * the access attempt is considered to have failed,
56 * and we will print an error.
57 * If the csr_mutex is already held then the _lock variants must
60 static inline void rt2500usb_register_read(struct rt2x00_dev
*rt2x00dev
,
61 const unsigned int offset
,
65 rt2x00usb_vendor_request_buff(rt2x00dev
, USB_MULTI_READ
,
66 USB_VENDOR_REQUEST_IN
, offset
,
67 ®
, sizeof(reg
), REGISTER_TIMEOUT
);
68 *value
= le16_to_cpu(reg
);
71 static inline void rt2500usb_register_read_lock(struct rt2x00_dev
*rt2x00dev
,
72 const unsigned int offset
,
76 rt2x00usb_vendor_req_buff_lock(rt2x00dev
, USB_MULTI_READ
,
77 USB_VENDOR_REQUEST_IN
, offset
,
78 ®
, sizeof(reg
), REGISTER_TIMEOUT
);
79 *value
= le16_to_cpu(reg
);
82 static inline void rt2500usb_register_multiread(struct rt2x00_dev
*rt2x00dev
,
83 const unsigned int offset
,
84 void *value
, const u16 length
)
86 rt2x00usb_vendor_request_buff(rt2x00dev
, USB_MULTI_READ
,
87 USB_VENDOR_REQUEST_IN
, offset
,
89 REGISTER_TIMEOUT16(length
));
92 static inline void rt2500usb_register_write(struct rt2x00_dev
*rt2x00dev
,
93 const unsigned int offset
,
96 __le16 reg
= cpu_to_le16(value
);
97 rt2x00usb_vendor_request_buff(rt2x00dev
, USB_MULTI_WRITE
,
98 USB_VENDOR_REQUEST_OUT
, offset
,
99 ®
, sizeof(reg
), REGISTER_TIMEOUT
);
102 static inline void rt2500usb_register_write_lock(struct rt2x00_dev
*rt2x00dev
,
103 const unsigned int offset
,
106 __le16 reg
= cpu_to_le16(value
);
107 rt2x00usb_vendor_req_buff_lock(rt2x00dev
, USB_MULTI_WRITE
,
108 USB_VENDOR_REQUEST_OUT
, offset
,
109 ®
, sizeof(reg
), REGISTER_TIMEOUT
);
112 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev
*rt2x00dev
,
113 const unsigned int offset
,
114 void *value
, const u16 length
)
116 rt2x00usb_vendor_request_buff(rt2x00dev
, USB_MULTI_WRITE
,
117 USB_VENDOR_REQUEST_OUT
, offset
,
119 REGISTER_TIMEOUT16(length
));
122 static int rt2500usb_regbusy_read(struct rt2x00_dev
*rt2x00dev
,
123 const unsigned int offset
,
124 struct rt2x00_field16 field
,
129 for (i
= 0; i
< REGISTER_BUSY_COUNT
; i
++) {
130 rt2500usb_register_read_lock(rt2x00dev
, offset
, reg
);
131 if (!rt2x00_get_field16(*reg
, field
))
133 udelay(REGISTER_BUSY_DELAY
);
136 ERROR(rt2x00dev
, "Indirect register access failed: "
137 "offset=0x%.08x, value=0x%.08x\n", offset
, *reg
);
143 #define WAIT_FOR_BBP(__dev, __reg) \
144 rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
145 #define WAIT_FOR_RF(__dev, __reg) \
146 rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
148 static void rt2500usb_bbp_write(struct rt2x00_dev
*rt2x00dev
,
149 const unsigned int word
, const u8 value
)
153 mutex_lock(&rt2x00dev
->csr_mutex
);
156 * Wait until the BBP becomes available, afterwards we
157 * can safely write the new data into the register.
159 if (WAIT_FOR_BBP(rt2x00dev
, ®
)) {
161 rt2x00_set_field16(®
, PHY_CSR7_DATA
, value
);
162 rt2x00_set_field16(®
, PHY_CSR7_REG_ID
, word
);
163 rt2x00_set_field16(®
, PHY_CSR7_READ_CONTROL
, 0);
165 rt2500usb_register_write_lock(rt2x00dev
, PHY_CSR7
, reg
);
168 mutex_unlock(&rt2x00dev
->csr_mutex
);
171 static void rt2500usb_bbp_read(struct rt2x00_dev
*rt2x00dev
,
172 const unsigned int word
, u8
*value
)
176 mutex_lock(&rt2x00dev
->csr_mutex
);
179 * Wait until the BBP becomes available, afterwards we
180 * can safely write the read request into the register.
181 * After the data has been written, we wait until hardware
182 * returns the correct value, if at any time the register
183 * doesn't become available in time, reg will be 0xffffffff
184 * which means we return 0xff to the caller.
186 if (WAIT_FOR_BBP(rt2x00dev
, ®
)) {
188 rt2x00_set_field16(®
, PHY_CSR7_REG_ID
, word
);
189 rt2x00_set_field16(®
, PHY_CSR7_READ_CONTROL
, 1);
191 rt2500usb_register_write_lock(rt2x00dev
, PHY_CSR7
, reg
);
193 if (WAIT_FOR_BBP(rt2x00dev
, ®
))
194 rt2500usb_register_read_lock(rt2x00dev
, PHY_CSR7
, ®
);
197 *value
= rt2x00_get_field16(reg
, PHY_CSR7_DATA
);
199 mutex_unlock(&rt2x00dev
->csr_mutex
);
202 static void rt2500usb_rf_write(struct rt2x00_dev
*rt2x00dev
,
203 const unsigned int word
, const u32 value
)
210 mutex_lock(&rt2x00dev
->csr_mutex
);
213 * Wait until the RF becomes available, afterwards we
214 * can safely write the new data into the register.
216 if (WAIT_FOR_RF(rt2x00dev
, ®
)) {
218 rt2x00_set_field16(®
, PHY_CSR9_RF_VALUE
, value
);
219 rt2500usb_register_write_lock(rt2x00dev
, PHY_CSR9
, reg
);
222 rt2x00_set_field16(®
, PHY_CSR10_RF_VALUE
, value
>> 16);
223 rt2x00_set_field16(®
, PHY_CSR10_RF_NUMBER_OF_BITS
, 20);
224 rt2x00_set_field16(®
, PHY_CSR10_RF_IF_SELECT
, 0);
225 rt2x00_set_field16(®
, PHY_CSR10_RF_BUSY
, 1);
227 rt2500usb_register_write_lock(rt2x00dev
, PHY_CSR10
, reg
);
228 rt2x00_rf_write(rt2x00dev
, word
, value
);
231 mutex_unlock(&rt2x00dev
->csr_mutex
);
234 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
235 static void _rt2500usb_register_read(struct rt2x00_dev
*rt2x00dev
,
236 const unsigned int offset
,
239 rt2500usb_register_read(rt2x00dev
, offset
, (u16
*)value
);
242 static void _rt2500usb_register_write(struct rt2x00_dev
*rt2x00dev
,
243 const unsigned int offset
,
246 rt2500usb_register_write(rt2x00dev
, offset
, value
);
249 static const struct rt2x00debug rt2500usb_rt2x00debug
= {
250 .owner
= THIS_MODULE
,
252 .read
= _rt2500usb_register_read
,
253 .write
= _rt2500usb_register_write
,
254 .flags
= RT2X00DEBUGFS_OFFSET
,
255 .word_base
= CSR_REG_BASE
,
256 .word_size
= sizeof(u16
),
257 .word_count
= CSR_REG_SIZE
/ sizeof(u16
),
260 .read
= rt2x00_eeprom_read
,
261 .write
= rt2x00_eeprom_write
,
262 .word_base
= EEPROM_BASE
,
263 .word_size
= sizeof(u16
),
264 .word_count
= EEPROM_SIZE
/ sizeof(u16
),
267 .read
= rt2500usb_bbp_read
,
268 .write
= rt2500usb_bbp_write
,
269 .word_base
= BBP_BASE
,
270 .word_size
= sizeof(u8
),
271 .word_count
= BBP_SIZE
/ sizeof(u8
),
274 .read
= rt2x00_rf_read
,
275 .write
= rt2500usb_rf_write
,
276 .word_base
= RF_BASE
,
277 .word_size
= sizeof(u32
),
278 .word_count
= RF_SIZE
/ sizeof(u32
),
281 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
283 #ifdef CONFIG_RT2X00_LIB_LEDS
284 static void rt2500usb_brightness_set(struct led_classdev
*led_cdev
,
285 enum led_brightness brightness
)
287 struct rt2x00_led
*led
=
288 container_of(led_cdev
, struct rt2x00_led
, led_dev
);
289 unsigned int enabled
= brightness
!= LED_OFF
;
292 rt2500usb_register_read(led
->rt2x00dev
, MAC_CSR20
, ®
);
294 if (led
->type
== LED_TYPE_RADIO
|| led
->type
== LED_TYPE_ASSOC
)
295 rt2x00_set_field16(®
, MAC_CSR20_LINK
, enabled
);
296 else if (led
->type
== LED_TYPE_ACTIVITY
)
297 rt2x00_set_field16(®
, MAC_CSR20_ACTIVITY
, enabled
);
299 rt2500usb_register_write(led
->rt2x00dev
, MAC_CSR20
, reg
);
302 static int rt2500usb_blink_set(struct led_classdev
*led_cdev
,
303 unsigned long *delay_on
,
304 unsigned long *delay_off
)
306 struct rt2x00_led
*led
=
307 container_of(led_cdev
, struct rt2x00_led
, led_dev
);
310 rt2500usb_register_read(led
->rt2x00dev
, MAC_CSR21
, ®
);
311 rt2x00_set_field16(®
, MAC_CSR21_ON_PERIOD
, *delay_on
);
312 rt2x00_set_field16(®
, MAC_CSR21_OFF_PERIOD
, *delay_off
);
313 rt2500usb_register_write(led
->rt2x00dev
, MAC_CSR21
, reg
);
318 static void rt2500usb_init_led(struct rt2x00_dev
*rt2x00dev
,
319 struct rt2x00_led
*led
,
322 led
->rt2x00dev
= rt2x00dev
;
324 led
->led_dev
.brightness_set
= rt2500usb_brightness_set
;
325 led
->led_dev
.blink_set
= rt2500usb_blink_set
;
326 led
->flags
= LED_INITIALIZED
;
328 #endif /* CONFIG_RT2X00_LIB_LEDS */
331 * Configuration handlers.
335 * rt2500usb does not differentiate between shared and pairwise
336 * keys, so we should use the same function for both key types.
338 static int rt2500usb_config_key(struct rt2x00_dev
*rt2x00dev
,
339 struct rt2x00lib_crypto
*crypto
,
340 struct ieee80211_key_conf
*key
)
346 if (crypto
->cmd
== SET_KEY
) {
348 * Pairwise key will always be entry 0, but this
349 * could collide with a shared key on the same
352 mask
= TXRX_CSR0_KEY_ID
.bit_mask
;
354 rt2500usb_register_read(rt2x00dev
, TXRX_CSR0
, ®
);
357 if (reg
&& reg
== mask
)
360 reg
= rt2x00_get_field16(reg
, TXRX_CSR0_KEY_ID
);
362 key
->hw_key_idx
+= reg
? ffz(reg
) : 0;
365 * The encryption key doesn't fit within the CSR cache,
366 * this means we should allocate it seperately and use
367 * rt2x00usb_vendor_request() to send the key to the hardware.
369 reg
= KEY_ENTRY(key
->hw_key_idx
);
370 timeout
= REGISTER_TIMEOUT32(sizeof(crypto
->key
));
371 rt2x00usb_vendor_request_large_buff(rt2x00dev
, USB_MULTI_WRITE
,
372 USB_VENDOR_REQUEST_OUT
, reg
,
378 * The driver does not support the IV/EIV generation
379 * in hardware. However it doesn't support the IV/EIV
380 * inside the ieee80211 frame either, but requires it
381 * to be provided seperately for the descriptor.
382 * rt2x00lib will cut the IV/EIV data out of all frames
383 * given to us by mac80211, but we must tell mac80211
384 * to generate the IV/EIV data.
386 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
387 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
391 * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
392 * a particular key is valid.
394 rt2500usb_register_read(rt2x00dev
, TXRX_CSR0
, ®
);
395 rt2x00_set_field16(®
, TXRX_CSR0_ALGORITHM
, crypto
->cipher
);
396 rt2x00_set_field16(®
, TXRX_CSR0_IV_OFFSET
, IEEE80211_HEADER
);
398 mask
= rt2x00_get_field16(reg
, TXRX_CSR0_KEY_ID
);
399 if (crypto
->cmd
== SET_KEY
)
400 mask
|= 1 << key
->hw_key_idx
;
401 else if (crypto
->cmd
== DISABLE_KEY
)
402 mask
&= ~(1 << key
->hw_key_idx
);
403 rt2x00_set_field16(®
, TXRX_CSR0_KEY_ID
, mask
);
404 rt2500usb_register_write(rt2x00dev
, TXRX_CSR0
, reg
);
409 static void rt2500usb_config_filter(struct rt2x00_dev
*rt2x00dev
,
410 const unsigned int filter_flags
)
415 * Start configuration steps.
416 * Note that the version error will always be dropped
417 * and broadcast frames will always be accepted since
418 * there is no filter for it at this time.
420 rt2500usb_register_read(rt2x00dev
, TXRX_CSR2
, ®
);
421 rt2x00_set_field16(®
, TXRX_CSR2_DROP_CRC
,
422 !(filter_flags
& FIF_FCSFAIL
));
423 rt2x00_set_field16(®
, TXRX_CSR2_DROP_PHYSICAL
,
424 !(filter_flags
& FIF_PLCPFAIL
));
425 rt2x00_set_field16(®
, TXRX_CSR2_DROP_CONTROL
,
426 !(filter_flags
& FIF_CONTROL
));
427 rt2x00_set_field16(®
, TXRX_CSR2_DROP_NOT_TO_ME
,
428 !(filter_flags
& FIF_PROMISC_IN_BSS
));
429 rt2x00_set_field16(®
, TXRX_CSR2_DROP_TODS
,
430 !(filter_flags
& FIF_PROMISC_IN_BSS
) &&
431 !rt2x00dev
->intf_ap_count
);
432 rt2x00_set_field16(®
, TXRX_CSR2_DROP_VERSION_ERROR
, 1);
433 rt2x00_set_field16(®
, TXRX_CSR2_DROP_MULTICAST
,
434 !(filter_flags
& FIF_ALLMULTI
));
435 rt2x00_set_field16(®
, TXRX_CSR2_DROP_BROADCAST
, 0);
436 rt2500usb_register_write(rt2x00dev
, TXRX_CSR2
, reg
);
439 static void rt2500usb_config_intf(struct rt2x00_dev
*rt2x00dev
,
440 struct rt2x00_intf
*intf
,
441 struct rt2x00intf_conf
*conf
,
442 const unsigned int flags
)
444 unsigned int bcn_preload
;
447 if (flags
& CONFIG_UPDATE_TYPE
) {
449 * Enable beacon config
451 bcn_preload
= PREAMBLE
+ GET_DURATION(IEEE80211_HEADER
, 20);
452 rt2500usb_register_read(rt2x00dev
, TXRX_CSR20
, ®
);
453 rt2x00_set_field16(®
, TXRX_CSR20_OFFSET
, bcn_preload
>> 6);
454 rt2x00_set_field16(®
, TXRX_CSR20_BCN_EXPECT_WINDOW
,
455 2 * (conf
->type
!= NL80211_IFTYPE_STATION
));
456 rt2500usb_register_write(rt2x00dev
, TXRX_CSR20
, reg
);
459 * Enable synchronisation.
461 rt2500usb_register_read(rt2x00dev
, TXRX_CSR18
, ®
);
462 rt2x00_set_field16(®
, TXRX_CSR18_OFFSET
, 0);
463 rt2500usb_register_write(rt2x00dev
, TXRX_CSR18
, reg
);
465 rt2500usb_register_read(rt2x00dev
, TXRX_CSR19
, ®
);
466 rt2x00_set_field16(®
, TXRX_CSR19_TSF_COUNT
, 1);
467 rt2x00_set_field16(®
, TXRX_CSR19_TSF_SYNC
, conf
->sync
);
468 rt2x00_set_field16(®
, TXRX_CSR19_TBCN
, 1);
469 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
472 if (flags
& CONFIG_UPDATE_MAC
)
473 rt2500usb_register_multiwrite(rt2x00dev
, MAC_CSR2
, conf
->mac
,
474 (3 * sizeof(__le16
)));
476 if (flags
& CONFIG_UPDATE_BSSID
)
477 rt2500usb_register_multiwrite(rt2x00dev
, MAC_CSR5
, conf
->bssid
,
478 (3 * sizeof(__le16
)));
481 static void rt2500usb_config_erp(struct rt2x00_dev
*rt2x00dev
,
482 struct rt2x00lib_erp
*erp
)
486 rt2500usb_register_read(rt2x00dev
, TXRX_CSR1
, ®
);
487 rt2x00_set_field16(®
, TXRX_CSR1_ACK_TIMEOUT
, erp
->ack_timeout
);
488 rt2500usb_register_write(rt2x00dev
, TXRX_CSR1
, reg
);
490 rt2500usb_register_read(rt2x00dev
, TXRX_CSR10
, ®
);
491 rt2x00_set_field16(®
, TXRX_CSR10_AUTORESPOND_PREAMBLE
,
492 !!erp
->short_preamble
);
493 rt2500usb_register_write(rt2x00dev
, TXRX_CSR10
, reg
);
495 rt2500usb_register_write(rt2x00dev
, TXRX_CSR11
, erp
->basic_rates
);
497 rt2500usb_register_write(rt2x00dev
, MAC_CSR10
, erp
->slot_time
);
498 rt2500usb_register_write(rt2x00dev
, MAC_CSR11
, erp
->sifs
);
499 rt2500usb_register_write(rt2x00dev
, MAC_CSR12
, erp
->eifs
);
502 static void rt2500usb_config_ant(struct rt2x00_dev
*rt2x00dev
,
503 struct antenna_setup
*ant
)
511 * We should never come here because rt2x00lib is supposed
512 * to catch this and send us the correct antenna explicitely.
514 BUG_ON(ant
->rx
== ANTENNA_SW_DIVERSITY
||
515 ant
->tx
== ANTENNA_SW_DIVERSITY
);
517 rt2500usb_bbp_read(rt2x00dev
, 2, &r2
);
518 rt2500usb_bbp_read(rt2x00dev
, 14, &r14
);
519 rt2500usb_register_read(rt2x00dev
, PHY_CSR5
, &csr5
);
520 rt2500usb_register_read(rt2x00dev
, PHY_CSR6
, &csr6
);
523 * Configure the TX antenna.
526 case ANTENNA_HW_DIVERSITY
:
527 rt2x00_set_field8(&r2
, BBP_R2_TX_ANTENNA
, 1);
528 rt2x00_set_field16(&csr5
, PHY_CSR5_CCK
, 1);
529 rt2x00_set_field16(&csr6
, PHY_CSR6_OFDM
, 1);
532 rt2x00_set_field8(&r2
, BBP_R2_TX_ANTENNA
, 0);
533 rt2x00_set_field16(&csr5
, PHY_CSR5_CCK
, 0);
534 rt2x00_set_field16(&csr6
, PHY_CSR6_OFDM
, 0);
538 rt2x00_set_field8(&r2
, BBP_R2_TX_ANTENNA
, 2);
539 rt2x00_set_field16(&csr5
, PHY_CSR5_CCK
, 2);
540 rt2x00_set_field16(&csr6
, PHY_CSR6_OFDM
, 2);
545 * Configure the RX antenna.
548 case ANTENNA_HW_DIVERSITY
:
549 rt2x00_set_field8(&r14
, BBP_R14_RX_ANTENNA
, 1);
552 rt2x00_set_field8(&r14
, BBP_R14_RX_ANTENNA
, 0);
556 rt2x00_set_field8(&r14
, BBP_R14_RX_ANTENNA
, 2);
561 * RT2525E and RT5222 need to flip TX I/Q
563 if (rt2x00_rf(&rt2x00dev
->chip
, RF2525E
) ||
564 rt2x00_rf(&rt2x00dev
->chip
, RF5222
)) {
565 rt2x00_set_field8(&r2
, BBP_R2_TX_IQ_FLIP
, 1);
566 rt2x00_set_field16(&csr5
, PHY_CSR5_CCK_FLIP
, 1);
567 rt2x00_set_field16(&csr6
, PHY_CSR6_OFDM_FLIP
, 1);
570 * RT2525E does not need RX I/Q Flip.
572 if (rt2x00_rf(&rt2x00dev
->chip
, RF2525E
))
573 rt2x00_set_field8(&r14
, BBP_R14_RX_IQ_FLIP
, 0);
575 rt2x00_set_field16(&csr5
, PHY_CSR5_CCK_FLIP
, 0);
576 rt2x00_set_field16(&csr6
, PHY_CSR6_OFDM_FLIP
, 0);
579 rt2500usb_bbp_write(rt2x00dev
, 2, r2
);
580 rt2500usb_bbp_write(rt2x00dev
, 14, r14
);
581 rt2500usb_register_write(rt2x00dev
, PHY_CSR5
, csr5
);
582 rt2500usb_register_write(rt2x00dev
, PHY_CSR6
, csr6
);
585 static void rt2500usb_config_channel(struct rt2x00_dev
*rt2x00dev
,
586 struct rf_channel
*rf
, const int txpower
)
591 rt2x00_set_field32(&rf
->rf3
, RF3_TXPOWER
, TXPOWER_TO_DEV(txpower
));
594 * For RT2525E we should first set the channel to half band higher.
596 if (rt2x00_rf(&rt2x00dev
->chip
, RF2525E
)) {
597 static const u32 vals
[] = {
598 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
599 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
600 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
601 0x00000902, 0x00000906
604 rt2500usb_rf_write(rt2x00dev
, 2, vals
[rf
->channel
- 1]);
606 rt2500usb_rf_write(rt2x00dev
, 4, rf
->rf4
);
609 rt2500usb_rf_write(rt2x00dev
, 1, rf
->rf1
);
610 rt2500usb_rf_write(rt2x00dev
, 2, rf
->rf2
);
611 rt2500usb_rf_write(rt2x00dev
, 3, rf
->rf3
);
613 rt2500usb_rf_write(rt2x00dev
, 4, rf
->rf4
);
616 static void rt2500usb_config_txpower(struct rt2x00_dev
*rt2x00dev
,
621 rt2x00_rf_read(rt2x00dev
, 3, &rf3
);
622 rt2x00_set_field32(&rf3
, RF3_TXPOWER
, TXPOWER_TO_DEV(txpower
));
623 rt2500usb_rf_write(rt2x00dev
, 3, rf3
);
626 static void rt2500usb_config_duration(struct rt2x00_dev
*rt2x00dev
,
627 struct rt2x00lib_conf
*libconf
)
631 rt2500usb_register_read(rt2x00dev
, TXRX_CSR18
, ®
);
632 rt2x00_set_field16(®
, TXRX_CSR18_INTERVAL
,
633 libconf
->conf
->beacon_int
* 4);
634 rt2500usb_register_write(rt2x00dev
, TXRX_CSR18
, reg
);
637 static void rt2500usb_config(struct rt2x00_dev
*rt2x00dev
,
638 struct rt2x00lib_conf
*libconf
,
639 const unsigned int flags
)
641 if (flags
& IEEE80211_CONF_CHANGE_CHANNEL
)
642 rt2500usb_config_channel(rt2x00dev
, &libconf
->rf
,
643 libconf
->conf
->power_level
);
644 if ((flags
& IEEE80211_CONF_CHANGE_POWER
) &&
645 !(flags
& IEEE80211_CONF_CHANGE_CHANNEL
))
646 rt2500usb_config_txpower(rt2x00dev
,
647 libconf
->conf
->power_level
);
648 if (flags
& IEEE80211_CONF_CHANGE_BEACON_INTERVAL
)
649 rt2500usb_config_duration(rt2x00dev
, libconf
);
655 static void rt2500usb_link_stats(struct rt2x00_dev
*rt2x00dev
,
656 struct link_qual
*qual
)
661 * Update FCS error count from register.
663 rt2500usb_register_read(rt2x00dev
, STA_CSR0
, ®
);
664 qual
->rx_failed
= rt2x00_get_field16(reg
, STA_CSR0_FCS_ERROR
);
667 * Update False CCA count from register.
669 rt2500usb_register_read(rt2x00dev
, STA_CSR3
, ®
);
670 qual
->false_cca
= rt2x00_get_field16(reg
, STA_CSR3_FALSE_CCA_ERROR
);
673 static void rt2500usb_reset_tuner(struct rt2x00_dev
*rt2x00dev
)
678 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R24
, &eeprom
);
679 value
= rt2x00_get_field16(eeprom
, EEPROM_BBPTUNE_R24_LOW
);
680 rt2500usb_bbp_write(rt2x00dev
, 24, value
);
682 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R25
, &eeprom
);
683 value
= rt2x00_get_field16(eeprom
, EEPROM_BBPTUNE_R25_LOW
);
684 rt2500usb_bbp_write(rt2x00dev
, 25, value
);
686 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R61
, &eeprom
);
687 value
= rt2x00_get_field16(eeprom
, EEPROM_BBPTUNE_R61_LOW
);
688 rt2500usb_bbp_write(rt2x00dev
, 61, value
);
690 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_VGC
, &eeprom
);
691 value
= rt2x00_get_field16(eeprom
, EEPROM_BBPTUNE_VGCUPPER
);
692 rt2500usb_bbp_write(rt2x00dev
, 17, value
);
694 rt2x00dev
->link
.vgc_level
= value
;
698 * NOTE: This function is directly ported from legacy driver, but
699 * despite it being declared it was never called. Although link tuning
700 * sounds like a good idea, and usually works well for the other drivers,
701 * it does _not_ work with rt2500usb. Enabling this function will result
702 * in TX capabilities only until association kicks in. Immediately
703 * after the successful association all TX frames will be kept in the
704 * hardware queue and never transmitted.
707 static void rt2500usb_link_tuner(struct rt2x00_dev
*rt2x00dev
)
709 int rssi
= rt2x00_get_link_rssi(&rt2x00dev
->link
);
722 * Read current r17 value, as well as the sensitivity values
723 * for the r17 register.
725 rt2500usb_bbp_read(rt2x00dev
, 17, &r17
);
726 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R17
, &r17_sens
);
728 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_VGC
, &vgc_bound
);
729 up_bound
= rt2x00_get_field16(vgc_bound
, EEPROM_BBPTUNE_VGCUPPER
);
730 low_bound
= rt2x00_get_field16(vgc_bound
, EEPROM_BBPTUNE_VGCLOWER
);
733 * If we are not associated, we should go straight to the
734 * dynamic CCA tuning.
736 if (!rt2x00dev
->intf_associated
)
737 goto dynamic_cca_tune
;
740 * Determine the BBP tuning threshold and correctly
741 * set BBP 24, 25 and 61.
743 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE
, &bbp_thresh
);
744 bbp_thresh
= rt2x00_get_field16(bbp_thresh
, EEPROM_BBPTUNE_THRESHOLD
);
746 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R24
, &r24
);
747 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R25
, &r25
);
748 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R61
, &r61
);
750 if ((rssi
+ bbp_thresh
) > 0) {
751 r24
= rt2x00_get_field16(r24
, EEPROM_BBPTUNE_R24_HIGH
);
752 r25
= rt2x00_get_field16(r25
, EEPROM_BBPTUNE_R25_HIGH
);
753 r61
= rt2x00_get_field16(r61
, EEPROM_BBPTUNE_R61_HIGH
);
755 r24
= rt2x00_get_field16(r24
, EEPROM_BBPTUNE_R24_LOW
);
756 r25
= rt2x00_get_field16(r25
, EEPROM_BBPTUNE_R25_LOW
);
757 r61
= rt2x00_get_field16(r61
, EEPROM_BBPTUNE_R61_LOW
);
760 rt2500usb_bbp_write(rt2x00dev
, 24, r24
);
761 rt2500usb_bbp_write(rt2x00dev
, 25, r25
);
762 rt2500usb_bbp_write(rt2x00dev
, 61, r61
);
765 * A too low RSSI will cause too much false CCA which will
766 * then corrupt the R17 tuning. To remidy this the tuning should
767 * be stopped (While making sure the R17 value will not exceed limits)
771 rt2500usb_bbp_write(rt2x00dev
, 17, 0x60);
776 * Special big-R17 for short distance
779 sens
= rt2x00_get_field16(r17_sens
, EEPROM_BBPTUNE_R17_LOW
);
781 rt2500usb_bbp_write(rt2x00dev
, 17, sens
);
786 * Special mid-R17 for middle distance
789 sens
= rt2x00_get_field16(r17_sens
, EEPROM_BBPTUNE_R17_HIGH
);
791 rt2500usb_bbp_write(rt2x00dev
, 17, sens
);
796 * Leave short or middle distance condition, restore r17
797 * to the dynamic tuning range.
801 up_bound
-= (-77 - rssi
);
803 if (up_bound
< low_bound
)
804 up_bound
= low_bound
;
806 if (r17
> up_bound
) {
807 rt2500usb_bbp_write(rt2x00dev
, 17, up_bound
);
808 rt2x00dev
->link
.vgc_level
= up_bound
;
815 * R17 is inside the dynamic tuning range,
816 * start tuning the link based on the false cca counter.
818 if (rt2x00dev
->link
.qual
.false_cca
> 512 && r17
< up_bound
) {
819 rt2500usb_bbp_write(rt2x00dev
, 17, ++r17
);
820 rt2x00dev
->link
.vgc_level
= r17
;
821 } else if (rt2x00dev
->link
.qual
.false_cca
< 100 && r17
> low_bound
) {
822 rt2500usb_bbp_write(rt2x00dev
, 17, --r17
);
823 rt2x00dev
->link
.vgc_level
= r17
;
827 #define rt2500usb_link_tuner NULL
831 * Initialization functions.
833 static int rt2500usb_init_registers(struct rt2x00_dev
*rt2x00dev
)
837 rt2x00usb_vendor_request_sw(rt2x00dev
, USB_DEVICE_MODE
, 0x0001,
838 USB_MODE_TEST
, REGISTER_TIMEOUT
);
839 rt2x00usb_vendor_request_sw(rt2x00dev
, USB_SINGLE_WRITE
, 0x0308,
840 0x00f0, REGISTER_TIMEOUT
);
842 rt2500usb_register_read(rt2x00dev
, TXRX_CSR2
, ®
);
843 rt2x00_set_field16(®
, TXRX_CSR2_DISABLE_RX
, 1);
844 rt2500usb_register_write(rt2x00dev
, TXRX_CSR2
, reg
);
846 rt2500usb_register_write(rt2x00dev
, MAC_CSR13
, 0x1111);
847 rt2500usb_register_write(rt2x00dev
, MAC_CSR14
, 0x1e11);
849 rt2500usb_register_read(rt2x00dev
, MAC_CSR1
, ®
);
850 rt2x00_set_field16(®
, MAC_CSR1_SOFT_RESET
, 1);
851 rt2x00_set_field16(®
, MAC_CSR1_BBP_RESET
, 1);
852 rt2x00_set_field16(®
, MAC_CSR1_HOST_READY
, 0);
853 rt2500usb_register_write(rt2x00dev
, MAC_CSR1
, reg
);
855 rt2500usb_register_read(rt2x00dev
, MAC_CSR1
, ®
);
856 rt2x00_set_field16(®
, MAC_CSR1_SOFT_RESET
, 0);
857 rt2x00_set_field16(®
, MAC_CSR1_BBP_RESET
, 0);
858 rt2x00_set_field16(®
, MAC_CSR1_HOST_READY
, 0);
859 rt2500usb_register_write(rt2x00dev
, MAC_CSR1
, reg
);
861 rt2500usb_register_read(rt2x00dev
, TXRX_CSR5
, ®
);
862 rt2x00_set_field16(®
, TXRX_CSR5_BBP_ID0
, 13);
863 rt2x00_set_field16(®
, TXRX_CSR5_BBP_ID0_VALID
, 1);
864 rt2x00_set_field16(®
, TXRX_CSR5_BBP_ID1
, 12);
865 rt2x00_set_field16(®
, TXRX_CSR5_BBP_ID1_VALID
, 1);
866 rt2500usb_register_write(rt2x00dev
, TXRX_CSR5
, reg
);
868 rt2500usb_register_read(rt2x00dev
, TXRX_CSR6
, ®
);
869 rt2x00_set_field16(®
, TXRX_CSR6_BBP_ID0
, 10);
870 rt2x00_set_field16(®
, TXRX_CSR6_BBP_ID0_VALID
, 1);
871 rt2x00_set_field16(®
, TXRX_CSR6_BBP_ID1
, 11);
872 rt2x00_set_field16(®
, TXRX_CSR6_BBP_ID1_VALID
, 1);
873 rt2500usb_register_write(rt2x00dev
, TXRX_CSR6
, reg
);
875 rt2500usb_register_read(rt2x00dev
, TXRX_CSR7
, ®
);
876 rt2x00_set_field16(®
, TXRX_CSR7_BBP_ID0
, 7);
877 rt2x00_set_field16(®
, TXRX_CSR7_BBP_ID0_VALID
, 1);
878 rt2x00_set_field16(®
, TXRX_CSR7_BBP_ID1
, 6);
879 rt2x00_set_field16(®
, TXRX_CSR7_BBP_ID1_VALID
, 1);
880 rt2500usb_register_write(rt2x00dev
, TXRX_CSR7
, reg
);
882 rt2500usb_register_read(rt2x00dev
, TXRX_CSR8
, ®
);
883 rt2x00_set_field16(®
, TXRX_CSR8_BBP_ID0
, 5);
884 rt2x00_set_field16(®
, TXRX_CSR8_BBP_ID0_VALID
, 1);
885 rt2x00_set_field16(®
, TXRX_CSR8_BBP_ID1
, 0);
886 rt2x00_set_field16(®
, TXRX_CSR8_BBP_ID1_VALID
, 0);
887 rt2500usb_register_write(rt2x00dev
, TXRX_CSR8
, reg
);
889 rt2500usb_register_read(rt2x00dev
, TXRX_CSR19
, ®
);
890 rt2x00_set_field16(®
, TXRX_CSR19_TSF_COUNT
, 0);
891 rt2x00_set_field16(®
, TXRX_CSR19_TSF_SYNC
, 0);
892 rt2x00_set_field16(®
, TXRX_CSR19_TBCN
, 0);
893 rt2x00_set_field16(®
, TXRX_CSR19_BEACON_GEN
, 0);
894 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
896 rt2500usb_register_write(rt2x00dev
, TXRX_CSR21
, 0xe78f);
897 rt2500usb_register_write(rt2x00dev
, MAC_CSR9
, 0xff1d);
899 if (rt2x00dev
->ops
->lib
->set_device_state(rt2x00dev
, STATE_AWAKE
))
902 rt2500usb_register_read(rt2x00dev
, MAC_CSR1
, ®
);
903 rt2x00_set_field16(®
, MAC_CSR1_SOFT_RESET
, 0);
904 rt2x00_set_field16(®
, MAC_CSR1_BBP_RESET
, 0);
905 rt2x00_set_field16(®
, MAC_CSR1_HOST_READY
, 1);
906 rt2500usb_register_write(rt2x00dev
, MAC_CSR1
, reg
);
908 if (rt2x00_rev(&rt2x00dev
->chip
) >= RT2570_VERSION_C
) {
909 rt2500usb_register_read(rt2x00dev
, PHY_CSR2
, ®
);
910 rt2x00_set_field16(®
, PHY_CSR2_LNA
, 0);
913 rt2x00_set_field16(®
, PHY_CSR2_LNA
, 1);
914 rt2x00_set_field16(®
, PHY_CSR2_LNA_MODE
, 3);
916 rt2500usb_register_write(rt2x00dev
, PHY_CSR2
, reg
);
918 rt2500usb_register_write(rt2x00dev
, MAC_CSR11
, 0x0002);
919 rt2500usb_register_write(rt2x00dev
, MAC_CSR22
, 0x0053);
920 rt2500usb_register_write(rt2x00dev
, MAC_CSR15
, 0x01ee);
921 rt2500usb_register_write(rt2x00dev
, MAC_CSR16
, 0x0000);
923 rt2500usb_register_read(rt2x00dev
, MAC_CSR8
, ®
);
924 rt2x00_set_field16(®
, MAC_CSR8_MAX_FRAME_UNIT
,
925 rt2x00dev
->rx
->data_size
);
926 rt2500usb_register_write(rt2x00dev
, MAC_CSR8
, reg
);
928 rt2500usb_register_read(rt2x00dev
, TXRX_CSR0
, ®
);
929 rt2x00_set_field16(®
, TXRX_CSR0_IV_OFFSET
, IEEE80211_HEADER
);
930 rt2x00_set_field16(®
, TXRX_CSR0_KEY_ID
, 0);
931 rt2500usb_register_write(rt2x00dev
, TXRX_CSR0
, reg
);
933 rt2500usb_register_read(rt2x00dev
, MAC_CSR18
, ®
);
934 rt2x00_set_field16(®
, MAC_CSR18_DELAY_AFTER_BEACON
, 90);
935 rt2500usb_register_write(rt2x00dev
, MAC_CSR18
, reg
);
937 rt2500usb_register_read(rt2x00dev
, PHY_CSR4
, ®
);
938 rt2x00_set_field16(®
, PHY_CSR4_LOW_RF_LE
, 1);
939 rt2500usb_register_write(rt2x00dev
, PHY_CSR4
, reg
);
941 rt2500usb_register_read(rt2x00dev
, TXRX_CSR1
, ®
);
942 rt2x00_set_field16(®
, TXRX_CSR1_AUTO_SEQUENCE
, 1);
943 rt2500usb_register_write(rt2x00dev
, TXRX_CSR1
, reg
);
948 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev
*rt2x00dev
)
953 for (i
= 0; i
< REGISTER_BUSY_COUNT
; i
++) {
954 rt2500usb_bbp_read(rt2x00dev
, 0, &value
);
955 if ((value
!= 0xff) && (value
!= 0x00))
957 udelay(REGISTER_BUSY_DELAY
);
960 ERROR(rt2x00dev
, "BBP register access failed, aborting.\n");
964 static int rt2500usb_init_bbp(struct rt2x00_dev
*rt2x00dev
)
971 if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev
)))
974 rt2500usb_bbp_write(rt2x00dev
, 3, 0x02);
975 rt2500usb_bbp_write(rt2x00dev
, 4, 0x19);
976 rt2500usb_bbp_write(rt2x00dev
, 14, 0x1c);
977 rt2500usb_bbp_write(rt2x00dev
, 15, 0x30);
978 rt2500usb_bbp_write(rt2x00dev
, 16, 0xac);
979 rt2500usb_bbp_write(rt2x00dev
, 18, 0x18);
980 rt2500usb_bbp_write(rt2x00dev
, 19, 0xff);
981 rt2500usb_bbp_write(rt2x00dev
, 20, 0x1e);
982 rt2500usb_bbp_write(rt2x00dev
, 21, 0x08);
983 rt2500usb_bbp_write(rt2x00dev
, 22, 0x08);
984 rt2500usb_bbp_write(rt2x00dev
, 23, 0x08);
985 rt2500usb_bbp_write(rt2x00dev
, 24, 0x80);
986 rt2500usb_bbp_write(rt2x00dev
, 25, 0x50);
987 rt2500usb_bbp_write(rt2x00dev
, 26, 0x08);
988 rt2500usb_bbp_write(rt2x00dev
, 27, 0x23);
989 rt2500usb_bbp_write(rt2x00dev
, 30, 0x10);
990 rt2500usb_bbp_write(rt2x00dev
, 31, 0x2b);
991 rt2500usb_bbp_write(rt2x00dev
, 32, 0xb9);
992 rt2500usb_bbp_write(rt2x00dev
, 34, 0x12);
993 rt2500usb_bbp_write(rt2x00dev
, 35, 0x50);
994 rt2500usb_bbp_write(rt2x00dev
, 39, 0xc4);
995 rt2500usb_bbp_write(rt2x00dev
, 40, 0x02);
996 rt2500usb_bbp_write(rt2x00dev
, 41, 0x60);
997 rt2500usb_bbp_write(rt2x00dev
, 53, 0x10);
998 rt2500usb_bbp_write(rt2x00dev
, 54, 0x18);
999 rt2500usb_bbp_write(rt2x00dev
, 56, 0x08);
1000 rt2500usb_bbp_write(rt2x00dev
, 57, 0x10);
1001 rt2500usb_bbp_write(rt2x00dev
, 58, 0x08);
1002 rt2500usb_bbp_write(rt2x00dev
, 61, 0x60);
1003 rt2500usb_bbp_write(rt2x00dev
, 62, 0x10);
1004 rt2500usb_bbp_write(rt2x00dev
, 75, 0xff);
1006 for (i
= 0; i
< EEPROM_BBP_SIZE
; i
++) {
1007 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBP_START
+ i
, &eeprom
);
1009 if (eeprom
!= 0xffff && eeprom
!= 0x0000) {
1010 reg_id
= rt2x00_get_field16(eeprom
, EEPROM_BBP_REG_ID
);
1011 value
= rt2x00_get_field16(eeprom
, EEPROM_BBP_VALUE
);
1012 rt2500usb_bbp_write(rt2x00dev
, reg_id
, value
);
1020 * Device state switch handlers.
1022 static void rt2500usb_toggle_rx(struct rt2x00_dev
*rt2x00dev
,
1023 enum dev_state state
)
1027 rt2500usb_register_read(rt2x00dev
, TXRX_CSR2
, ®
);
1028 rt2x00_set_field16(®
, TXRX_CSR2_DISABLE_RX
,
1029 (state
== STATE_RADIO_RX_OFF
) ||
1030 (state
== STATE_RADIO_RX_OFF_LINK
));
1031 rt2500usb_register_write(rt2x00dev
, TXRX_CSR2
, reg
);
1034 static int rt2500usb_enable_radio(struct rt2x00_dev
*rt2x00dev
)
1037 * Initialize all registers.
1039 if (unlikely(rt2500usb_init_registers(rt2x00dev
) ||
1040 rt2500usb_init_bbp(rt2x00dev
)))
1046 static void rt2500usb_disable_radio(struct rt2x00_dev
*rt2x00dev
)
1048 rt2500usb_register_write(rt2x00dev
, MAC_CSR13
, 0x2121);
1049 rt2500usb_register_write(rt2x00dev
, MAC_CSR14
, 0x2121);
1052 * Disable synchronisation.
1054 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, 0);
1056 rt2x00usb_disable_radio(rt2x00dev
);
1059 static int rt2500usb_set_state(struct rt2x00_dev
*rt2x00dev
,
1060 enum dev_state state
)
1069 put_to_sleep
= (state
!= STATE_AWAKE
);
1072 rt2x00_set_field16(®
, MAC_CSR17_BBP_DESIRE_STATE
, state
);
1073 rt2x00_set_field16(®
, MAC_CSR17_RF_DESIRE_STATE
, state
);
1074 rt2x00_set_field16(®
, MAC_CSR17_PUT_TO_SLEEP
, put_to_sleep
);
1075 rt2500usb_register_write(rt2x00dev
, MAC_CSR17
, reg
);
1076 rt2x00_set_field16(®
, MAC_CSR17_SET_STATE
, 1);
1077 rt2500usb_register_write(rt2x00dev
, MAC_CSR17
, reg
);
1080 * Device is not guaranteed to be in the requested state yet.
1081 * We must wait until the register indicates that the
1082 * device has entered the correct state.
1084 for (i
= 0; i
< REGISTER_BUSY_COUNT
; i
++) {
1085 rt2500usb_register_read(rt2x00dev
, MAC_CSR17
, ®2
);
1086 bbp_state
= rt2x00_get_field16(reg2
, MAC_CSR17_BBP_CURR_STATE
);
1087 rf_state
= rt2x00_get_field16(reg2
, MAC_CSR17_RF_CURR_STATE
);
1088 if (bbp_state
== state
&& rf_state
== state
)
1090 rt2500usb_register_write(rt2x00dev
, MAC_CSR17
, reg
);
1097 static int rt2500usb_set_device_state(struct rt2x00_dev
*rt2x00dev
,
1098 enum dev_state state
)
1103 case STATE_RADIO_ON
:
1104 retval
= rt2500usb_enable_radio(rt2x00dev
);
1106 case STATE_RADIO_OFF
:
1107 rt2500usb_disable_radio(rt2x00dev
);
1109 case STATE_RADIO_RX_ON
:
1110 case STATE_RADIO_RX_ON_LINK
:
1111 case STATE_RADIO_RX_OFF
:
1112 case STATE_RADIO_RX_OFF_LINK
:
1113 rt2500usb_toggle_rx(rt2x00dev
, state
);
1115 case STATE_RADIO_IRQ_ON
:
1116 case STATE_RADIO_IRQ_OFF
:
1117 /* No support, but no error either */
1119 case STATE_DEEP_SLEEP
:
1123 retval
= rt2500usb_set_state(rt2x00dev
, state
);
1130 if (unlikely(retval
))
1131 ERROR(rt2x00dev
, "Device failed to enter state %d (%d).\n",
1138 * TX descriptor initialization
1140 static void rt2500usb_write_tx_desc(struct rt2x00_dev
*rt2x00dev
,
1141 struct sk_buff
*skb
,
1142 struct txentry_desc
*txdesc
)
1144 struct skb_frame_desc
*skbdesc
= get_skb_frame_desc(skb
);
1145 __le32
*txd
= skbdesc
->desc
;
1149 * Start writing the descriptor words.
1151 rt2x00_desc_read(txd
, 1, &word
);
1152 rt2x00_set_field32(&word
, TXD_W1_IV_OFFSET
, txdesc
->iv_offset
);
1153 rt2x00_set_field32(&word
, TXD_W1_AIFS
, txdesc
->aifs
);
1154 rt2x00_set_field32(&word
, TXD_W1_CWMIN
, txdesc
->cw_min
);
1155 rt2x00_set_field32(&word
, TXD_W1_CWMAX
, txdesc
->cw_max
);
1156 rt2x00_desc_write(txd
, 1, word
);
1158 rt2x00_desc_read(txd
, 2, &word
);
1159 rt2x00_set_field32(&word
, TXD_W2_PLCP_SIGNAL
, txdesc
->signal
);
1160 rt2x00_set_field32(&word
, TXD_W2_PLCP_SERVICE
, txdesc
->service
);
1161 rt2x00_set_field32(&word
, TXD_W2_PLCP_LENGTH_LOW
, txdesc
->length_low
);
1162 rt2x00_set_field32(&word
, TXD_W2_PLCP_LENGTH_HIGH
, txdesc
->length_high
);
1163 rt2x00_desc_write(txd
, 2, word
);
1165 if (test_bit(ENTRY_TXD_ENCRYPT
, &txdesc
->flags
)) {
1166 _rt2x00_desc_write(txd
, 3, skbdesc
->iv
[0]);
1167 _rt2x00_desc_write(txd
, 4, skbdesc
->iv
[1]);
1170 rt2x00_desc_read(txd
, 0, &word
);
1171 rt2x00_set_field32(&word
, TXD_W0_RETRY_LIMIT
, txdesc
->retry_limit
);
1172 rt2x00_set_field32(&word
, TXD_W0_MORE_FRAG
,
1173 test_bit(ENTRY_TXD_MORE_FRAG
, &txdesc
->flags
));
1174 rt2x00_set_field32(&word
, TXD_W0_ACK
,
1175 test_bit(ENTRY_TXD_ACK
, &txdesc
->flags
));
1176 rt2x00_set_field32(&word
, TXD_W0_TIMESTAMP
,
1177 test_bit(ENTRY_TXD_REQ_TIMESTAMP
, &txdesc
->flags
));
1178 rt2x00_set_field32(&word
, TXD_W0_OFDM
,
1179 test_bit(ENTRY_TXD_OFDM_RATE
, &txdesc
->flags
));
1180 rt2x00_set_field32(&word
, TXD_W0_NEW_SEQ
,
1181 test_bit(ENTRY_TXD_FIRST_FRAGMENT
, &txdesc
->flags
));
1182 rt2x00_set_field32(&word
, TXD_W0_IFS
, txdesc
->ifs
);
1183 rt2x00_set_field32(&word
, TXD_W0_DATABYTE_COUNT
, skb
->len
);
1184 rt2x00_set_field32(&word
, TXD_W0_CIPHER
, txdesc
->cipher
);
1185 rt2x00_set_field32(&word
, TXD_W0_KEY_ID
, txdesc
->key_idx
);
1186 rt2x00_desc_write(txd
, 0, word
);
1190 * TX data initialization
1192 static void rt2500usb_beacondone(struct urb
*urb
);
1194 static void rt2500usb_write_beacon(struct queue_entry
*entry
)
1196 struct rt2x00_dev
*rt2x00dev
= entry
->queue
->rt2x00dev
;
1197 struct usb_device
*usb_dev
= to_usb_device_intf(rt2x00dev
->dev
);
1198 struct queue_entry_priv_usb_bcn
*bcn_priv
= entry
->priv_data
;
1199 struct skb_frame_desc
*skbdesc
= get_skb_frame_desc(entry
->skb
);
1200 int pipe
= usb_sndbulkpipe(usb_dev
, entry
->queue
->usb_endpoint
);
1205 * Add the descriptor in front of the skb.
1207 skb_push(entry
->skb
, entry
->queue
->desc_size
);
1208 memcpy(entry
->skb
->data
, skbdesc
->desc
, skbdesc
->desc_len
);
1209 skbdesc
->desc
= entry
->skb
->data
;
1212 * Disable beaconing while we are reloading the beacon data,
1213 * otherwise we might be sending out invalid data.
1215 rt2500usb_register_read(rt2x00dev
, TXRX_CSR19
, ®
);
1216 rt2x00_set_field16(®
, TXRX_CSR19_TSF_COUNT
, 0);
1217 rt2x00_set_field16(®
, TXRX_CSR19_TBCN
, 0);
1218 rt2x00_set_field16(®
, TXRX_CSR19_BEACON_GEN
, 0);
1219 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
1222 * USB devices cannot blindly pass the skb->len as the
1223 * length of the data to usb_fill_bulk_urb. Pass the skb
1224 * to the driver to determine what the length should be.
1226 length
= rt2x00dev
->ops
->lib
->get_tx_data_len(entry
);
1228 usb_fill_bulk_urb(bcn_priv
->urb
, usb_dev
, pipe
,
1229 entry
->skb
->data
, length
, rt2500usb_beacondone
,
1233 * Second we need to create the guardian byte.
1234 * We only need a single byte, so lets recycle
1235 * the 'flags' field we are not using for beacons.
1237 bcn_priv
->guardian_data
= 0;
1238 usb_fill_bulk_urb(bcn_priv
->guardian_urb
, usb_dev
, pipe
,
1239 &bcn_priv
->guardian_data
, 1, rt2500usb_beacondone
,
1243 * Send out the guardian byte.
1245 usb_submit_urb(bcn_priv
->guardian_urb
, GFP_ATOMIC
);
1248 static int rt2500usb_get_tx_data_len(struct queue_entry
*entry
)
1253 * The length _must_ be a multiple of 2,
1254 * but it must _not_ be a multiple of the USB packet size.
1256 length
= roundup(entry
->skb
->len
, 2);
1257 length
+= (2 * !(length
% entry
->queue
->usb_maxpacket
));
1262 static void rt2500usb_kick_tx_queue(struct rt2x00_dev
*rt2x00dev
,
1263 const enum data_queue_qid queue
)
1267 if (queue
!= QID_BEACON
) {
1268 rt2x00usb_kick_tx_queue(rt2x00dev
, queue
);
1272 rt2500usb_register_read(rt2x00dev
, TXRX_CSR19
, ®
);
1273 if (!rt2x00_get_field16(reg
, TXRX_CSR19_BEACON_GEN
)) {
1274 rt2x00_set_field16(®
, TXRX_CSR19_TSF_COUNT
, 1);
1275 rt2x00_set_field16(®
, TXRX_CSR19_TBCN
, 1);
1276 rt2x00_set_field16(®
, TXRX_CSR19_BEACON_GEN
, 1);
1278 * Beacon generation will fail initially.
1279 * To prevent this we need to register the TXRX_CSR19
1280 * register several times.
1282 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
1283 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, 0);
1284 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
1285 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, 0);
1286 rt2500usb_register_write(rt2x00dev
, TXRX_CSR19
, reg
);
1291 * RX control handlers
1293 static void rt2500usb_fill_rxdone(struct queue_entry
*entry
,
1294 struct rxdone_entry_desc
*rxdesc
)
1296 struct rt2x00_dev
*rt2x00dev
= entry
->queue
->rt2x00dev
;
1297 struct queue_entry_priv_usb
*entry_priv
= entry
->priv_data
;
1298 struct skb_frame_desc
*skbdesc
= get_skb_frame_desc(entry
->skb
);
1300 (__le32
*)(entry
->skb
->data
+
1301 (entry_priv
->urb
->actual_length
-
1302 entry
->queue
->desc_size
));
1307 * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1308 * frame data in rt2x00usb.
1310 memcpy(skbdesc
->desc
, rxd
, skbdesc
->desc_len
);
1311 rxd
= (__le32
*)skbdesc
->desc
;
1314 * It is now safe to read the descriptor on all architectures.
1316 rt2x00_desc_read(rxd
, 0, &word0
);
1317 rt2x00_desc_read(rxd
, 1, &word1
);
1319 if (rt2x00_get_field32(word0
, RXD_W0_CRC_ERROR
))
1320 rxdesc
->flags
|= RX_FLAG_FAILED_FCS_CRC
;
1321 if (rt2x00_get_field32(word0
, RXD_W0_PHYSICAL_ERROR
))
1322 rxdesc
->flags
|= RX_FLAG_FAILED_PLCP_CRC
;
1324 if (test_bit(CONFIG_SUPPORT_HW_CRYPTO
, &rt2x00dev
->flags
)) {
1325 rxdesc
->cipher
= rt2x00_get_field32(word0
, RXD_W0_CIPHER
);
1326 if (rt2x00_get_field32(word0
, RXD_W0_CIPHER_ERROR
))
1327 rxdesc
->cipher_status
= RX_CRYPTO_FAIL_KEY
;
1330 if (rxdesc
->cipher
!= CIPHER_NONE
) {
1331 _rt2x00_desc_read(rxd
, 2, &rxdesc
->iv
[0]);
1332 _rt2x00_desc_read(rxd
, 3, &rxdesc
->iv
[1]);
1333 /* ICV is located at the end of frame */
1336 * Hardware has stripped IV/EIV data from 802.11 frame during
1337 * decryption. It has provided the data seperately but rt2x00lib
1338 * should decide if it should be reinserted.
1340 rxdesc
->flags
|= RX_FLAG_IV_STRIPPED
;
1341 if (rxdesc
->cipher
!= CIPHER_TKIP
)
1342 rxdesc
->flags
|= RX_FLAG_MMIC_STRIPPED
;
1343 if (rxdesc
->cipher_status
== RX_CRYPTO_SUCCESS
)
1344 rxdesc
->flags
|= RX_FLAG_DECRYPTED
;
1345 else if (rxdesc
->cipher_status
== RX_CRYPTO_FAIL_MIC
)
1346 rxdesc
->flags
|= RX_FLAG_MMIC_ERROR
;
1350 * Obtain the status about this packet.
1351 * When frame was received with an OFDM bitrate,
1352 * the signal is the PLCP value. If it was received with
1353 * a CCK bitrate the signal is the rate in 100kbit/s.
1355 rxdesc
->signal
= rt2x00_get_field32(word1
, RXD_W1_SIGNAL
);
1357 rt2x00_get_field32(word1
, RXD_W1_RSSI
) - rt2x00dev
->rssi_offset
;
1358 rxdesc
->size
= rt2x00_get_field32(word0
, RXD_W0_DATABYTE_COUNT
);
1360 if (rt2x00_get_field32(word0
, RXD_W0_OFDM
))
1361 rxdesc
->dev_flags
|= RXDONE_SIGNAL_PLCP
;
1363 rxdesc
->dev_flags
|= RXDONE_SIGNAL_BITRATE
;
1364 if (rt2x00_get_field32(word0
, RXD_W0_MY_BSS
))
1365 rxdesc
->dev_flags
|= RXDONE_MY_BSS
;
1368 * Adjust the skb memory window to the frame boundaries.
1370 skb_trim(entry
->skb
, rxdesc
->size
);
1374 * Interrupt functions.
1376 static void rt2500usb_beacondone(struct urb
*urb
)
1378 struct queue_entry
*entry
= (struct queue_entry
*)urb
->context
;
1379 struct queue_entry_priv_usb_bcn
*bcn_priv
= entry
->priv_data
;
1381 if (!test_bit(DEVICE_STATE_ENABLED_RADIO
, &entry
->queue
->rt2x00dev
->flags
))
1385 * Check if this was the guardian beacon,
1386 * if that was the case we need to send the real beacon now.
1387 * Otherwise we should free the sk_buffer, the device
1388 * should be doing the rest of the work now.
1390 if (bcn_priv
->guardian_urb
== urb
) {
1391 usb_submit_urb(bcn_priv
->urb
, GFP_ATOMIC
);
1392 } else if (bcn_priv
->urb
== urb
) {
1393 dev_kfree_skb(entry
->skb
);
1399 * Device probe functions.
1401 static int rt2500usb_validate_eeprom(struct rt2x00_dev
*rt2x00dev
)
1407 rt2x00usb_eeprom_read(rt2x00dev
, rt2x00dev
->eeprom
, EEPROM_SIZE
);
1410 * Start validation of the data that has been read.
1412 mac
= rt2x00_eeprom_addr(rt2x00dev
, EEPROM_MAC_ADDR_0
);
1413 if (!is_valid_ether_addr(mac
)) {
1414 random_ether_addr(mac
);
1415 EEPROM(rt2x00dev
, "MAC: %pM\n", mac
);
1418 rt2x00_eeprom_read(rt2x00dev
, EEPROM_ANTENNA
, &word
);
1419 if (word
== 0xffff) {
1420 rt2x00_set_field16(&word
, EEPROM_ANTENNA_NUM
, 2);
1421 rt2x00_set_field16(&word
, EEPROM_ANTENNA_TX_DEFAULT
,
1422 ANTENNA_SW_DIVERSITY
);
1423 rt2x00_set_field16(&word
, EEPROM_ANTENNA_RX_DEFAULT
,
1424 ANTENNA_SW_DIVERSITY
);
1425 rt2x00_set_field16(&word
, EEPROM_ANTENNA_LED_MODE
,
1427 rt2x00_set_field16(&word
, EEPROM_ANTENNA_DYN_TXAGC
, 0);
1428 rt2x00_set_field16(&word
, EEPROM_ANTENNA_HARDWARE_RADIO
, 0);
1429 rt2x00_set_field16(&word
, EEPROM_ANTENNA_RF_TYPE
, RF2522
);
1430 rt2x00_eeprom_write(rt2x00dev
, EEPROM_ANTENNA
, word
);
1431 EEPROM(rt2x00dev
, "Antenna: 0x%04x\n", word
);
1434 rt2x00_eeprom_read(rt2x00dev
, EEPROM_NIC
, &word
);
1435 if (word
== 0xffff) {
1436 rt2x00_set_field16(&word
, EEPROM_NIC_CARDBUS_ACCEL
, 0);
1437 rt2x00_set_field16(&word
, EEPROM_NIC_DYN_BBP_TUNE
, 0);
1438 rt2x00_set_field16(&word
, EEPROM_NIC_CCK_TX_POWER
, 0);
1439 rt2x00_eeprom_write(rt2x00dev
, EEPROM_NIC
, word
);
1440 EEPROM(rt2x00dev
, "NIC: 0x%04x\n", word
);
1443 rt2x00_eeprom_read(rt2x00dev
, EEPROM_CALIBRATE_OFFSET
, &word
);
1444 if (word
== 0xffff) {
1445 rt2x00_set_field16(&word
, EEPROM_CALIBRATE_OFFSET_RSSI
,
1446 DEFAULT_RSSI_OFFSET
);
1447 rt2x00_eeprom_write(rt2x00dev
, EEPROM_CALIBRATE_OFFSET
, word
);
1448 EEPROM(rt2x00dev
, "Calibrate offset: 0x%04x\n", word
);
1451 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE
, &word
);
1452 if (word
== 0xffff) {
1453 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_THRESHOLD
, 45);
1454 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE
, word
);
1455 EEPROM(rt2x00dev
, "BBPtune: 0x%04x\n", word
);
1459 * Switch lower vgc bound to current BBP R17 value,
1460 * lower the value a bit for better quality.
1462 rt2500usb_bbp_read(rt2x00dev
, 17, &bbp
);
1465 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_VGC
, &word
);
1466 if (word
== 0xffff) {
1467 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_VGCUPPER
, 0x40);
1468 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_VGCLOWER
, bbp
);
1469 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_VGC
, word
);
1470 EEPROM(rt2x00dev
, "BBPtune vgc: 0x%04x\n", word
);
1472 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_VGCLOWER
, bbp
);
1473 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_VGC
, word
);
1476 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R17
, &word
);
1477 if (word
== 0xffff) {
1478 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R17_LOW
, 0x48);
1479 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R17_HIGH
, 0x41);
1480 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_R17
, word
);
1481 EEPROM(rt2x00dev
, "BBPtune r17: 0x%04x\n", word
);
1484 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R24
, &word
);
1485 if (word
== 0xffff) {
1486 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R24_LOW
, 0x40);
1487 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R24_HIGH
, 0x80);
1488 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_R24
, word
);
1489 EEPROM(rt2x00dev
, "BBPtune r24: 0x%04x\n", word
);
1492 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R25
, &word
);
1493 if (word
== 0xffff) {
1494 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R25_LOW
, 0x40);
1495 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R25_HIGH
, 0x50);
1496 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_R25
, word
);
1497 EEPROM(rt2x00dev
, "BBPtune r25: 0x%04x\n", word
);
1500 rt2x00_eeprom_read(rt2x00dev
, EEPROM_BBPTUNE_R61
, &word
);
1501 if (word
== 0xffff) {
1502 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R61_LOW
, 0x60);
1503 rt2x00_set_field16(&word
, EEPROM_BBPTUNE_R61_HIGH
, 0x6d);
1504 rt2x00_eeprom_write(rt2x00dev
, EEPROM_BBPTUNE_R61
, word
);
1505 EEPROM(rt2x00dev
, "BBPtune r61: 0x%04x\n", word
);
1511 static int rt2500usb_init_eeprom(struct rt2x00_dev
*rt2x00dev
)
1518 * Read EEPROM word for configuration.
1520 rt2x00_eeprom_read(rt2x00dev
, EEPROM_ANTENNA
, &eeprom
);
1523 * Identify RF chipset.
1525 value
= rt2x00_get_field16(eeprom
, EEPROM_ANTENNA_RF_TYPE
);
1526 rt2500usb_register_read(rt2x00dev
, MAC_CSR0
, ®
);
1527 rt2x00_set_chip(rt2x00dev
, RT2570
, value
, reg
);
1529 if (!rt2x00_check_rev(&rt2x00dev
->chip
, 0)) {
1530 ERROR(rt2x00dev
, "Invalid RT chipset detected.\n");
1534 if (!rt2x00_rf(&rt2x00dev
->chip
, RF2522
) &&
1535 !rt2x00_rf(&rt2x00dev
->chip
, RF2523
) &&
1536 !rt2x00_rf(&rt2x00dev
->chip
, RF2524
) &&
1537 !rt2x00_rf(&rt2x00dev
->chip
, RF2525
) &&
1538 !rt2x00_rf(&rt2x00dev
->chip
, RF2525E
) &&
1539 !rt2x00_rf(&rt2x00dev
->chip
, RF5222
)) {
1540 ERROR(rt2x00dev
, "Invalid RF chipset detected.\n");
1545 * Identify default antenna configuration.
1547 rt2x00dev
->default_ant
.tx
=
1548 rt2x00_get_field16(eeprom
, EEPROM_ANTENNA_TX_DEFAULT
);
1549 rt2x00dev
->default_ant
.rx
=
1550 rt2x00_get_field16(eeprom
, EEPROM_ANTENNA_RX_DEFAULT
);
1553 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1554 * I am not 100% sure about this, but the legacy drivers do not
1555 * indicate antenna swapping in software is required when
1556 * diversity is enabled.
1558 if (rt2x00dev
->default_ant
.tx
== ANTENNA_SW_DIVERSITY
)
1559 rt2x00dev
->default_ant
.tx
= ANTENNA_HW_DIVERSITY
;
1560 if (rt2x00dev
->default_ant
.rx
== ANTENNA_SW_DIVERSITY
)
1561 rt2x00dev
->default_ant
.rx
= ANTENNA_HW_DIVERSITY
;
1564 * Store led mode, for correct led behaviour.
1566 #ifdef CONFIG_RT2X00_LIB_LEDS
1567 value
= rt2x00_get_field16(eeprom
, EEPROM_ANTENNA_LED_MODE
);
1569 rt2500usb_init_led(rt2x00dev
, &rt2x00dev
->led_radio
, LED_TYPE_RADIO
);
1570 if (value
== LED_MODE_TXRX_ACTIVITY
)
1571 rt2500usb_init_led(rt2x00dev
, &rt2x00dev
->led_qual
,
1573 #endif /* CONFIG_RT2X00_LIB_LEDS */
1576 * Check if the BBP tuning should be disabled.
1578 rt2x00_eeprom_read(rt2x00dev
, EEPROM_NIC
, &eeprom
);
1579 if (rt2x00_get_field16(eeprom
, EEPROM_NIC_DYN_BBP_TUNE
))
1580 __set_bit(CONFIG_DISABLE_LINK_TUNING
, &rt2x00dev
->flags
);
1583 * Read the RSSI <-> dBm offset information.
1585 rt2x00_eeprom_read(rt2x00dev
, EEPROM_CALIBRATE_OFFSET
, &eeprom
);
1586 rt2x00dev
->rssi_offset
=
1587 rt2x00_get_field16(eeprom
, EEPROM_CALIBRATE_OFFSET_RSSI
);
1593 * RF value list for RF2522
1596 static const struct rf_channel rf_vals_bg_2522
[] = {
1597 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1598 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1599 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1600 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1601 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1602 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1603 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1604 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1605 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1606 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1607 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1608 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1609 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1610 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1614 * RF value list for RF2523
1617 static const struct rf_channel rf_vals_bg_2523
[] = {
1618 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1619 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1620 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1621 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1622 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1623 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1624 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1625 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1626 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1627 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1628 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1629 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1630 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1631 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1635 * RF value list for RF2524
1638 static const struct rf_channel rf_vals_bg_2524
[] = {
1639 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1640 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1641 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1642 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1643 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1644 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1645 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1646 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1647 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1648 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1649 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1650 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1651 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1652 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1656 * RF value list for RF2525
1659 static const struct rf_channel rf_vals_bg_2525
[] = {
1660 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1661 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1662 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1663 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1664 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1665 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1666 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1667 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1668 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1669 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1670 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1671 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1672 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1673 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1677 * RF value list for RF2525e
1680 static const struct rf_channel rf_vals_bg_2525e
[] = {
1681 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1682 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1683 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1684 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1685 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1686 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1687 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1688 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1689 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1690 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1691 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1692 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1693 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1694 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1698 * RF value list for RF5222
1699 * Supports: 2.4 GHz & 5.2 GHz
1701 static const struct rf_channel rf_vals_5222
[] = {
1702 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1703 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1704 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1705 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1706 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1707 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1708 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1709 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1710 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1711 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1712 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1713 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1714 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1715 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1717 /* 802.11 UNI / HyperLan 2 */
1718 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1719 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1720 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1721 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1722 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1723 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1724 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1725 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1727 /* 802.11 HyperLan 2 */
1728 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1729 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1730 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1731 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1732 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1733 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1734 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1735 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1736 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1737 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1740 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1741 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1742 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1743 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1744 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1747 static int rt2500usb_probe_hw_mode(struct rt2x00_dev
*rt2x00dev
)
1749 struct hw_mode_spec
*spec
= &rt2x00dev
->spec
;
1750 struct channel_info
*info
;
1755 * Initialize all hw fields.
1757 rt2x00dev
->hw
->flags
=
1758 IEEE80211_HW_RX_INCLUDES_FCS
|
1759 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING
|
1760 IEEE80211_HW_SIGNAL_DBM
;
1762 rt2x00dev
->hw
->extra_tx_headroom
= TXD_DESC_SIZE
;
1764 SET_IEEE80211_DEV(rt2x00dev
->hw
, rt2x00dev
->dev
);
1765 SET_IEEE80211_PERM_ADDR(rt2x00dev
->hw
,
1766 rt2x00_eeprom_addr(rt2x00dev
,
1767 EEPROM_MAC_ADDR_0
));
1770 * Initialize hw_mode information.
1772 spec
->supported_bands
= SUPPORT_BAND_2GHZ
;
1773 spec
->supported_rates
= SUPPORT_RATE_CCK
| SUPPORT_RATE_OFDM
;
1775 if (rt2x00_rf(&rt2x00dev
->chip
, RF2522
)) {
1776 spec
->num_channels
= ARRAY_SIZE(rf_vals_bg_2522
);
1777 spec
->channels
= rf_vals_bg_2522
;
1778 } else if (rt2x00_rf(&rt2x00dev
->chip
, RF2523
)) {
1779 spec
->num_channels
= ARRAY_SIZE(rf_vals_bg_2523
);
1780 spec
->channels
= rf_vals_bg_2523
;
1781 } else if (rt2x00_rf(&rt2x00dev
->chip
, RF2524
)) {
1782 spec
->num_channels
= ARRAY_SIZE(rf_vals_bg_2524
);
1783 spec
->channels
= rf_vals_bg_2524
;
1784 } else if (rt2x00_rf(&rt2x00dev
->chip
, RF2525
)) {
1785 spec
->num_channels
= ARRAY_SIZE(rf_vals_bg_2525
);
1786 spec
->channels
= rf_vals_bg_2525
;
1787 } else if (rt2x00_rf(&rt2x00dev
->chip
, RF2525E
)) {
1788 spec
->num_channels
= ARRAY_SIZE(rf_vals_bg_2525e
);
1789 spec
->channels
= rf_vals_bg_2525e
;
1790 } else if (rt2x00_rf(&rt2x00dev
->chip
, RF5222
)) {
1791 spec
->supported_bands
|= SUPPORT_BAND_5GHZ
;
1792 spec
->num_channels
= ARRAY_SIZE(rf_vals_5222
);
1793 spec
->channels
= rf_vals_5222
;
1797 * Create channel information array
1799 info
= kzalloc(spec
->num_channels
* sizeof(*info
), GFP_KERNEL
);
1803 spec
->channels_info
= info
;
1805 tx_power
= rt2x00_eeprom_addr(rt2x00dev
, EEPROM_TXPOWER_START
);
1806 for (i
= 0; i
< 14; i
++)
1807 info
[i
].tx_power1
= TXPOWER_FROM_DEV(tx_power
[i
]);
1809 if (spec
->num_channels
> 14) {
1810 for (i
= 14; i
< spec
->num_channels
; i
++)
1811 info
[i
].tx_power1
= DEFAULT_TXPOWER
;
1817 static int rt2500usb_probe_hw(struct rt2x00_dev
*rt2x00dev
)
1822 * Allocate eeprom data.
1824 retval
= rt2500usb_validate_eeprom(rt2x00dev
);
1828 retval
= rt2500usb_init_eeprom(rt2x00dev
);
1833 * Initialize hw specifications.
1835 retval
= rt2500usb_probe_hw_mode(rt2x00dev
);
1840 * This device requires the atim queue
1842 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE
, &rt2x00dev
->flags
);
1843 __set_bit(DRIVER_REQUIRE_BEACON_GUARD
, &rt2x00dev
->flags
);
1844 __set_bit(DRIVER_REQUIRE_SCHEDULED
, &rt2x00dev
->flags
);
1845 if (!modparam_nohwcrypt
) {
1846 __set_bit(CONFIG_SUPPORT_HW_CRYPTO
, &rt2x00dev
->flags
);
1847 __set_bit(CONFIG_CRYPTO_COPY_IV
, &rt2x00dev
->flags
);
1849 __set_bit(CONFIG_DISABLE_LINK_TUNING
, &rt2x00dev
->flags
);
1852 * Set the rssi offset.
1854 rt2x00dev
->rssi_offset
= DEFAULT_RSSI_OFFSET
;
1859 static const struct ieee80211_ops rt2500usb_mac80211_ops
= {
1861 .start
= rt2x00mac_start
,
1862 .stop
= rt2x00mac_stop
,
1863 .add_interface
= rt2x00mac_add_interface
,
1864 .remove_interface
= rt2x00mac_remove_interface
,
1865 .config
= rt2x00mac_config
,
1866 .config_interface
= rt2x00mac_config_interface
,
1867 .configure_filter
= rt2x00mac_configure_filter
,
1868 .set_key
= rt2x00mac_set_key
,
1869 .get_stats
= rt2x00mac_get_stats
,
1870 .bss_info_changed
= rt2x00mac_bss_info_changed
,
1871 .conf_tx
= rt2x00mac_conf_tx
,
1872 .get_tx_stats
= rt2x00mac_get_tx_stats
,
1875 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops
= {
1876 .probe_hw
= rt2500usb_probe_hw
,
1877 .initialize
= rt2x00usb_initialize
,
1878 .uninitialize
= rt2x00usb_uninitialize
,
1879 .clear_entry
= rt2x00usb_clear_entry
,
1880 .set_device_state
= rt2500usb_set_device_state
,
1881 .link_stats
= rt2500usb_link_stats
,
1882 .reset_tuner
= rt2500usb_reset_tuner
,
1883 .link_tuner
= rt2500usb_link_tuner
,
1884 .write_tx_desc
= rt2500usb_write_tx_desc
,
1885 .write_tx_data
= rt2x00usb_write_tx_data
,
1886 .write_beacon
= rt2500usb_write_beacon
,
1887 .get_tx_data_len
= rt2500usb_get_tx_data_len
,
1888 .kick_tx_queue
= rt2500usb_kick_tx_queue
,
1889 .fill_rxdone
= rt2500usb_fill_rxdone
,
1890 .config_shared_key
= rt2500usb_config_key
,
1891 .config_pairwise_key
= rt2500usb_config_key
,
1892 .config_filter
= rt2500usb_config_filter
,
1893 .config_intf
= rt2500usb_config_intf
,
1894 .config_erp
= rt2500usb_config_erp
,
1895 .config_ant
= rt2500usb_config_ant
,
1896 .config
= rt2500usb_config
,
1899 static const struct data_queue_desc rt2500usb_queue_rx
= {
1900 .entry_num
= RX_ENTRIES
,
1901 .data_size
= DATA_FRAME_SIZE
,
1902 .desc_size
= RXD_DESC_SIZE
,
1903 .priv_size
= sizeof(struct queue_entry_priv_usb
),
1906 static const struct data_queue_desc rt2500usb_queue_tx
= {
1907 .entry_num
= TX_ENTRIES
,
1908 .data_size
= DATA_FRAME_SIZE
,
1909 .desc_size
= TXD_DESC_SIZE
,
1910 .priv_size
= sizeof(struct queue_entry_priv_usb
),
1913 static const struct data_queue_desc rt2500usb_queue_bcn
= {
1914 .entry_num
= BEACON_ENTRIES
,
1915 .data_size
= MGMT_FRAME_SIZE
,
1916 .desc_size
= TXD_DESC_SIZE
,
1917 .priv_size
= sizeof(struct queue_entry_priv_usb_bcn
),
1920 static const struct data_queue_desc rt2500usb_queue_atim
= {
1921 .entry_num
= ATIM_ENTRIES
,
1922 .data_size
= DATA_FRAME_SIZE
,
1923 .desc_size
= TXD_DESC_SIZE
,
1924 .priv_size
= sizeof(struct queue_entry_priv_usb
),
1927 static const struct rt2x00_ops rt2500usb_ops
= {
1928 .name
= KBUILD_MODNAME
,
1931 .eeprom_size
= EEPROM_SIZE
,
1933 .tx_queues
= NUM_TX_QUEUES
,
1934 .rx
= &rt2500usb_queue_rx
,
1935 .tx
= &rt2500usb_queue_tx
,
1936 .bcn
= &rt2500usb_queue_bcn
,
1937 .atim
= &rt2500usb_queue_atim
,
1938 .lib
= &rt2500usb_rt2x00_ops
,
1939 .hw
= &rt2500usb_mac80211_ops
,
1940 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1941 .debugfs
= &rt2500usb_rt2x00debug
,
1942 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1946 * rt2500usb module information.
1948 static struct usb_device_id rt2500usb_device_table
[] = {
1950 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops
) },
1951 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops
) },
1953 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops
) },
1954 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops
) },
1955 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops
) },
1957 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops
) },
1958 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops
) },
1959 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops
) },
1961 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops
) },
1963 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops
) },
1965 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops
) },
1966 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops
) },
1968 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops
) },
1970 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops
) },
1971 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops
) },
1972 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops
) },
1973 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops
) },
1974 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops
) },
1976 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops
) },
1977 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops
) },
1978 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops
) },
1980 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops
) },
1981 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops
) },
1982 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops
) },
1983 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops
) },
1985 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops
) },
1987 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops
) },
1989 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops
) },
1991 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops
) },
1993 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops
) },
1997 MODULE_AUTHOR(DRV_PROJECT
);
1998 MODULE_VERSION(DRV_VERSION
);
1999 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
2000 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
2001 MODULE_DEVICE_TABLE(usb
, rt2500usb_device_table
);
2002 MODULE_LICENSE("GPL");
2004 static struct usb_driver rt2500usb_driver
= {
2005 .name
= KBUILD_MODNAME
,
2006 .id_table
= rt2500usb_device_table
,
2007 .probe
= rt2x00usb_probe
,
2008 .disconnect
= rt2x00usb_disconnect
,
2009 .suspend
= rt2x00usb_suspend
,
2010 .resume
= rt2x00usb_resume
,
2013 static int __init
rt2500usb_init(void)
2015 return usb_register(&rt2500usb_driver
);
2018 static void __exit
rt2500usb_exit(void)
2020 usb_deregister(&rt2500usb_driver
);
2023 module_init(rt2500usb_init
);
2024 module_exit(rt2500usb_exit
);