3 * Common code for mac80211 Prism54 drivers
5 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
6 * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
8 * Based on the islsm (softmac prism54) driver, which is:
9 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/init.h>
17 #include <linux/firmware.h>
18 #include <linux/etherdevice.h>
20 #include <net/mac80211.h>
23 #include "p54common.h"
25 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
26 MODULE_DESCRIPTION("Softmac Prism54 common code");
27 MODULE_LICENSE("GPL");
28 MODULE_ALIAS("prism54common");
30 static struct ieee80211_rate p54_rates
[] = {
31 { .bitrate
= 10, .hw_value
= 0, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
32 { .bitrate
= 20, .hw_value
= 1, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
33 { .bitrate
= 55, .hw_value
= 2, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
34 { .bitrate
= 110, .hw_value
= 3, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
35 { .bitrate
= 60, .hw_value
= 4, },
36 { .bitrate
= 90, .hw_value
= 5, },
37 { .bitrate
= 120, .hw_value
= 6, },
38 { .bitrate
= 180, .hw_value
= 7, },
39 { .bitrate
= 240, .hw_value
= 8, },
40 { .bitrate
= 360, .hw_value
= 9, },
41 { .bitrate
= 480, .hw_value
= 10, },
42 { .bitrate
= 540, .hw_value
= 11, },
45 static struct ieee80211_channel p54_channels
[] = {
46 { .center_freq
= 2412, .hw_value
= 1, },
47 { .center_freq
= 2417, .hw_value
= 2, },
48 { .center_freq
= 2422, .hw_value
= 3, },
49 { .center_freq
= 2427, .hw_value
= 4, },
50 { .center_freq
= 2432, .hw_value
= 5, },
51 { .center_freq
= 2437, .hw_value
= 6, },
52 { .center_freq
= 2442, .hw_value
= 7, },
53 { .center_freq
= 2447, .hw_value
= 8, },
54 { .center_freq
= 2452, .hw_value
= 9, },
55 { .center_freq
= 2457, .hw_value
= 10, },
56 { .center_freq
= 2462, .hw_value
= 11, },
57 { .center_freq
= 2467, .hw_value
= 12, },
58 { .center_freq
= 2472, .hw_value
= 13, },
59 { .center_freq
= 2484, .hw_value
= 14, },
62 static struct ieee80211_supported_band band_2GHz
= {
63 .channels
= p54_channels
,
64 .n_channels
= ARRAY_SIZE(p54_channels
),
65 .bitrates
= p54_rates
,
66 .n_bitrates
= ARRAY_SIZE(p54_rates
),
70 void p54_parse_firmware(struct ieee80211_hw
*dev
, const struct firmware
*fw
)
72 struct p54_common
*priv
= dev
->priv
;
73 struct bootrec_exp_if
*exp_if
;
74 struct bootrec
*bootrec
;
75 u32
*data
= (u32
*)fw
->data
;
76 u32
*end_data
= (u32
*)fw
->data
+ (fw
->size
>> 2);
77 u8
*fw_version
= NULL
;
84 while (data
< end_data
&& *data
)
87 while (data
< end_data
&& !*data
)
90 bootrec
= (struct bootrec
*) data
;
92 while (bootrec
->data
<= end_data
&&
93 (bootrec
->data
+ (len
= le32_to_cpu(bootrec
->len
))) <= end_data
) {
94 u32 code
= le32_to_cpu(bootrec
->code
);
96 case BR_CODE_COMPONENT_ID
:
97 switch (be32_to_cpu(*(__be32
*)bootrec
->data
)) {
99 printk(KERN_INFO
"p54: FreeMAC firmware\n");
102 printk(KERN_INFO
"p54: LM20 firmware\n");
105 printk(KERN_INFO
"p54: LM86 firmware\n");
108 printk(KERN_INFO
"p54: LM87 firmware - not supported yet!\n");
111 printk(KERN_INFO
"p54: unknown firmware\n");
115 case BR_CODE_COMPONENT_VERSION
:
116 /* 24 bytes should be enough for all firmwares */
117 if (strnlen((unsigned char*)bootrec
->data
, 24) < 24)
118 fw_version
= (unsigned char*)bootrec
->data
;
121 priv
->rx_start
= le32_to_cpu(((__le32
*)bootrec
->data
)[1]);
122 /* FIXME add sanity checking */
123 priv
->rx_end
= le32_to_cpu(((__le32
*)bootrec
->data
)[2]) - 0x3500;
125 case BR_CODE_EXPOSED_IF
:
126 exp_if
= (struct bootrec_exp_if
*) bootrec
->data
;
127 for (i
= 0; i
< (len
* sizeof(*exp_if
) / 4); i
++)
128 if (exp_if
[i
].if_id
== cpu_to_le16(0x1a))
129 priv
->fw_var
= le16_to_cpu(exp_if
[i
].variant
);
131 case BR_CODE_DEPENDENT_IF
:
133 case BR_CODE_END_OF_BRA
:
134 case LEGACY_BR_CODE_END_OF_BRA
:
140 bootrec
= (struct bootrec
*)&bootrec
->data
[len
];
144 printk(KERN_INFO
"p54: FW rev %s - Softmac protocol %x.%x\n",
145 fw_version
, priv
->fw_var
>> 8, priv
->fw_var
& 0xff);
147 if (priv
->fw_var
>= 0x300) {
148 /* Firmware supports QoS, use it! */
149 priv
->tx_stats
[0].limit
= 3;
150 priv
->tx_stats
[1].limit
= 4;
151 priv
->tx_stats
[2].limit
= 3;
152 priv
->tx_stats
[3].limit
= 1;
156 EXPORT_SYMBOL_GPL(p54_parse_firmware
);
158 static int p54_convert_rev0_to_rev1(struct ieee80211_hw
*dev
,
159 struct pda_pa_curve_data
*curve_data
)
161 struct p54_common
*priv
= dev
->priv
;
162 struct pda_pa_curve_data_sample_rev1
*rev1
;
163 struct pda_pa_curve_data_sample_rev0
*rev0
;
164 size_t cd_len
= sizeof(*curve_data
) +
165 (curve_data
->points_per_channel
*sizeof(*rev1
) + 2) *
166 curve_data
->channels
;
168 void *source
, *target
;
170 priv
->curve_data
= kmalloc(cd_len
, GFP_KERNEL
);
171 if (!priv
->curve_data
)
174 memcpy(priv
->curve_data
, curve_data
, sizeof(*curve_data
));
175 source
= curve_data
->data
;
176 target
= priv
->curve_data
->data
;
177 for (i
= 0; i
< curve_data
->channels
; i
++) {
178 __le16
*freq
= source
;
179 source
+= sizeof(__le16
);
180 *((__le16
*)target
) = *freq
;
181 target
+= sizeof(__le16
);
182 for (j
= 0; j
< curve_data
->points_per_channel
; j
++) {
186 rev1
->rf_power
= rev0
->rf_power
;
187 rev1
->pa_detector
= rev0
->pa_detector
;
188 rev1
->data_64qam
= rev0
->pcv
;
189 /* "invent" the points for the other modulations */
190 #define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y)
191 rev1
->data_16qam
= SUB(rev0
->pcv
, 12);
192 rev1
->data_qpsk
= SUB(rev1
->data_16qam
, 12);
193 rev1
->data_bpsk
= SUB(rev1
->data_qpsk
, 12);
194 rev1
->data_barker
= SUB(rev1
->data_bpsk
, 14);
196 target
+= sizeof(*rev1
);
197 source
+= sizeof(*rev0
);
204 int p54_parse_eeprom(struct ieee80211_hw
*dev
, void *eeprom
, int len
)
206 struct p54_common
*priv
= dev
->priv
;
207 struct eeprom_pda_wrap
*wrap
= NULL
;
208 struct pda_entry
*entry
;
209 unsigned int data_len
, entry_len
;
212 u8
*end
= (u8
*)eeprom
+ len
;
214 wrap
= (struct eeprom_pda_wrap
*) eeprom
;
215 entry
= (void *)wrap
->data
+ le16_to_cpu(wrap
->len
);
217 /* verify that at least the entry length/code fits */
218 while ((u8
*)entry
<= end
- sizeof(*entry
)) {
219 entry_len
= le16_to_cpu(entry
->len
);
220 data_len
= ((entry_len
- 1) << 1);
222 /* abort if entry exceeds whole structure */
223 if ((u8
*)entry
+ sizeof(*entry
) + data_len
> end
)
226 switch (le16_to_cpu(entry
->code
)) {
227 case PDR_MAC_ADDRESS
:
228 SET_IEEE80211_PERM_ADDR(dev
, entry
->data
);
230 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS
:
236 if (2 + entry
->data
[1]*sizeof(*priv
->output_limit
) > data_len
) {
241 priv
->output_limit
= kmalloc(entry
->data
[1] *
242 sizeof(*priv
->output_limit
), GFP_KERNEL
);
244 if (!priv
->output_limit
) {
249 memcpy(priv
->output_limit
, &entry
->data
[2],
250 entry
->data
[1]*sizeof(*priv
->output_limit
));
251 priv
->output_limit_len
= entry
->data
[1];
253 case PDR_PRISM_PA_CAL_CURVE_DATA
:
254 if (data_len
< sizeof(struct pda_pa_curve_data
)) {
259 if (((struct pda_pa_curve_data
*)entry
->data
)->cal_method_rev
) {
260 priv
->curve_data
= kmalloc(data_len
, GFP_KERNEL
);
261 if (!priv
->curve_data
) {
266 memcpy(priv
->curve_data
, entry
->data
, data_len
);
268 err
= p54_convert_rev0_to_rev1(dev
, (struct pda_pa_curve_data
*)entry
->data
);
274 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION
:
275 priv
->iq_autocal
= kmalloc(data_len
, GFP_KERNEL
);
276 if (!priv
->iq_autocal
) {
281 memcpy(priv
->iq_autocal
, entry
->data
, data_len
);
282 priv
->iq_autocal_len
= data_len
/ sizeof(struct pda_iq_autocal_entry
);
284 case PDR_INTERFACE_LIST
:
286 while ((u8
*)tmp
< entry
->data
+ data_len
) {
287 struct bootrec_exp_if
*exp_if
= tmp
;
288 if (le16_to_cpu(exp_if
->if_id
) == 0xF)
289 priv
->rxhw
= exp_if
->variant
& cpu_to_le16(0x07);
290 tmp
+= sizeof(struct bootrec_exp_if
);
293 case PDR_HARDWARE_PLATFORM_COMPONENT_ID
:
294 priv
->version
= *(u8
*)(entry
->data
+ 1);
297 /* make it overrun */
301 printk(KERN_INFO
"p54: unknown eeprom code : 0x%x\n",
302 le16_to_cpu(entry
->code
));
306 entry
= (void *)entry
+ (entry_len
+ 1)*2;
309 if (!priv
->iq_autocal
|| !priv
->output_limit
|| !priv
->curve_data
) {
310 printk(KERN_ERR
"p54: not all required entries found in eeprom!\n");
318 if (priv
->iq_autocal
) {
319 kfree(priv
->iq_autocal
);
320 priv
->iq_autocal
= NULL
;
323 if (priv
->output_limit
) {
324 kfree(priv
->output_limit
);
325 priv
->output_limit
= NULL
;
328 if (priv
->curve_data
) {
329 kfree(priv
->curve_data
);
330 priv
->curve_data
= NULL
;
333 printk(KERN_ERR
"p54: eeprom parse failed!\n");
336 EXPORT_SYMBOL_GPL(p54_parse_eeprom
);
338 void p54_fill_eeprom_readback(struct p54_control_hdr
*hdr
)
340 struct p54_eeprom_lm86
*eeprom_hdr
;
342 hdr
->magic1
= cpu_to_le16(0x8000);
343 hdr
->len
= cpu_to_le16(sizeof(*eeprom_hdr
) + 0x2000);
344 hdr
->type
= cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK
);
345 hdr
->retry1
= hdr
->retry2
= 0;
346 eeprom_hdr
= (struct p54_eeprom_lm86
*) hdr
->data
;
347 eeprom_hdr
->offset
= 0x0;
348 eeprom_hdr
->len
= cpu_to_le16(0x2000);
350 EXPORT_SYMBOL_GPL(p54_fill_eeprom_readback
);
352 static void p54_rx_data(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
354 struct p54_rx_hdr
*hdr
= (struct p54_rx_hdr
*) skb
->data
;
355 struct ieee80211_rx_status rx_status
= {0};
356 u16 freq
= le16_to_cpu(hdr
->freq
);
358 rx_status
.signal
= hdr
->rssi
;
360 rx_status
.rate_idx
= hdr
->rate
& 0xf;
361 rx_status
.freq
= freq
;
362 rx_status
.band
= IEEE80211_BAND_2GHZ
;
363 rx_status
.antenna
= hdr
->antenna
;
364 rx_status
.mactime
= le64_to_cpu(hdr
->timestamp
);
365 rx_status
.flag
|= RX_FLAG_TSFT
;
367 skb_pull(skb
, sizeof(*hdr
));
368 skb_trim(skb
, le16_to_cpu(hdr
->len
));
370 ieee80211_rx_irqsafe(dev
, skb
, &rx_status
);
373 static void inline p54_wake_free_queues(struct ieee80211_hw
*dev
)
375 struct p54_common
*priv
= dev
->priv
;
378 for (i
= 0; i
< dev
->queues
; i
++)
379 if (priv
->tx_stats
[i
].len
< priv
->tx_stats
[i
].limit
)
380 ieee80211_wake_queue(dev
, i
);
383 static void p54_rx_frame_sent(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
385 struct p54_common
*priv
= dev
->priv
;
386 struct p54_control_hdr
*hdr
= (struct p54_control_hdr
*) skb
->data
;
387 struct p54_frame_sent_hdr
*payload
= (struct p54_frame_sent_hdr
*) hdr
->data
;
388 struct sk_buff
*entry
= (struct sk_buff
*) priv
->tx_queue
.next
;
389 u32 addr
= le32_to_cpu(hdr
->req_id
) - 0x70;
390 struct memrecord
*range
= NULL
;
392 u32 last_addr
= priv
->rx_start
;
394 while (entry
!= (struct sk_buff
*)&priv
->tx_queue
) {
395 range
= (struct memrecord
*)&entry
->cb
;
396 if (range
->start_addr
== addr
) {
397 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(entry
);
398 struct p54_control_hdr
*entry_hdr
;
399 struct p54_tx_control_allocdata
*entry_data
;
402 if (entry
->next
!= (struct sk_buff
*)&priv
->tx_queue
)
403 freed
= ((struct memrecord
*)&entry
->next
->cb
)->start_addr
- last_addr
;
405 freed
= priv
->rx_end
- last_addr
;
407 last_addr
= range
->end_addr
;
408 __skb_unlink(entry
, &priv
->tx_queue
);
409 memset(&info
->status
, 0, sizeof(info
->status
));
410 priv
->tx_stats
[skb_get_queue_mapping(skb
)].len
--;
411 entry_hdr
= (struct p54_control_hdr
*) entry
->data
;
412 entry_data
= (struct p54_tx_control_allocdata
*) entry_hdr
->data
;
413 if ((entry_hdr
->magic1
& cpu_to_le16(0x4000)) != 0)
414 pad
= entry_data
->align
[0];
416 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
417 if (!(payload
->status
& 0x01))
418 info
->flags
|= IEEE80211_TX_STAT_ACK
;
420 info
->status
.excessive_retries
= 1;
422 info
->status
.retry_count
= payload
->retries
- 1;
423 info
->status
.ack_signal
= le16_to_cpu(payload
->ack_rssi
);
424 skb_pull(entry
, sizeof(*hdr
) + pad
+ sizeof(*entry_data
));
425 ieee80211_tx_status_irqsafe(dev
, entry
);
428 last_addr
= range
->end_addr
;
432 if (freed
>= IEEE80211_MAX_RTS_THRESHOLD
+ 0x170 +
433 sizeof(struct p54_control_hdr
))
434 p54_wake_free_queues(dev
);
437 static void p54_rx_control(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
439 struct p54_control_hdr
*hdr
= (struct p54_control_hdr
*) skb
->data
;
441 switch (le16_to_cpu(hdr
->type
)) {
442 case P54_CONTROL_TYPE_TXDONE
:
443 p54_rx_frame_sent(dev
, skb
);
445 case P54_CONTROL_TYPE_BBP
:
448 printk(KERN_DEBUG
"%s: not handling 0x%02x type control frame\n",
449 wiphy_name(dev
->wiphy
), le16_to_cpu(hdr
->type
));
454 /* returns zero if skb can be reused */
455 int p54_rx(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
457 u8 type
= le16_to_cpu(*((__le16
*)skb
->data
)) >> 8;
461 p54_rx_data(dev
, skb
);
464 /* TODO: do something better... but then again, I've never seen this happen */
465 printk(KERN_ERR
"%s: Received fault. Probably need to restart hardware now..\n",
466 wiphy_name(dev
->wiphy
));
469 p54_rx_control(dev
, skb
);
472 printk(KERN_ERR
"%s: unknown frame RXed (0x%02x)\n",
473 wiphy_name(dev
->wiphy
), type
);
478 EXPORT_SYMBOL_GPL(p54_rx
);
481 * So, the firmware is somewhat stupid and doesn't know what places in its
482 * memory incoming data should go to. By poking around in the firmware, we
483 * can find some unused memory to upload our packets to. However, data that we
484 * want the card to TX needs to stay intact until the card has told us that
485 * it is done with it. This function finds empty places we can upload to and
486 * marks allocated areas as reserved if necessary. p54_rx_frame_sent frees
489 static void p54_assign_address(struct ieee80211_hw
*dev
, struct sk_buff
*skb
,
490 struct p54_control_hdr
*data
, u32 len
)
492 struct p54_common
*priv
= dev
->priv
;
493 struct sk_buff
*entry
= priv
->tx_queue
.next
;
494 struct sk_buff
*target_skb
= NULL
;
495 u32 last_addr
= priv
->rx_start
;
496 u32 largest_hole
= 0;
497 u32 target_addr
= priv
->rx_start
;
500 len
= (len
+ 0x170 + 3) & ~0x3; /* 0x70 headroom, 0x100 tailroom */
502 spin_lock_irqsave(&priv
->tx_queue
.lock
, flags
);
503 left
= skb_queue_len(&priv
->tx_queue
);
506 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(entry
);
507 struct memrecord
*range
= (void *)info
->driver_data
;
508 hole_size
= range
->start_addr
- last_addr
;
509 if (!target_skb
&& hole_size
>= len
) {
510 target_skb
= entry
->prev
;
512 target_addr
= last_addr
;
514 largest_hole
= max(largest_hole
, hole_size
);
515 last_addr
= range
->end_addr
;
518 if (!target_skb
&& priv
->rx_end
- last_addr
>= len
) {
519 target_skb
= priv
->tx_queue
.prev
;
520 largest_hole
= max(largest_hole
, priv
->rx_end
- last_addr
- len
);
521 if (!skb_queue_empty(&priv
->tx_queue
)) {
522 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(target_skb
);
523 struct memrecord
*range
= (void *)info
->driver_data
;
524 target_addr
= range
->end_addr
;
527 largest_hole
= max(largest_hole
, priv
->rx_end
- last_addr
);
530 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
531 struct memrecord
*range
= (void *)info
->driver_data
;
532 range
->start_addr
= target_addr
;
533 range
->end_addr
= target_addr
+ len
;
534 __skb_queue_after(&priv
->tx_queue
, target_skb
, skb
);
535 if (largest_hole
< IEEE80211_MAX_RTS_THRESHOLD
+ 0x170 +
536 sizeof(struct p54_control_hdr
))
537 ieee80211_stop_queues(dev
);
539 spin_unlock_irqrestore(&priv
->tx_queue
.lock
, flags
);
541 data
->req_id
= cpu_to_le32(target_addr
+ 0x70);
544 static int p54_tx(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
546 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
547 struct ieee80211_tx_queue_stats
*current_queue
;
548 struct p54_common
*priv
= dev
->priv
;
549 struct p54_control_hdr
*hdr
;
550 struct p54_tx_control_allocdata
*txhdr
;
554 current_queue
= &priv
->tx_stats
[skb_get_queue_mapping(skb
)];
555 if (unlikely(current_queue
->len
> current_queue
->limit
))
556 return NETDEV_TX_BUSY
;
557 current_queue
->len
++;
558 current_queue
->count
++;
559 if (current_queue
->len
== current_queue
->limit
)
560 ieee80211_stop_queue(dev
, skb_get_queue_mapping(skb
));
562 padding
= (unsigned long)(skb
->data
- (sizeof(*hdr
) + sizeof(*txhdr
))) & 3;
565 txhdr
= (struct p54_tx_control_allocdata
*)
566 skb_push(skb
, sizeof(*txhdr
) + padding
);
567 hdr
= (struct p54_control_hdr
*) skb_push(skb
, sizeof(*hdr
));
570 hdr
->magic1
= cpu_to_le16(0x4010);
572 hdr
->magic1
= cpu_to_le16(0x0010);
573 hdr
->len
= cpu_to_le16(len
);
574 hdr
->type
= (info
->flags
& IEEE80211_TX_CTL_NO_ACK
) ? 0 : cpu_to_le16(1);
575 hdr
->retry1
= hdr
->retry2
= info
->control
.retry_limit
;
577 memset(txhdr
->wep_key
, 0x0, 16);
581 /* TODO: add support for alternate retry TX rates */
582 rate
= ieee80211_get_tx_rate(dev
, info
)->hw_value
;
583 if (info
->flags
& IEEE80211_TX_CTL_SHORT_PREAMBLE
)
585 if (info
->flags
& IEEE80211_TX_CTL_USE_RTS_CTS
)
587 else if (info
->flags
& IEEE80211_TX_CTL_USE_CTS_PROTECT
)
589 memset(txhdr
->rateset
, rate
, 8);
590 txhdr
->wep_key_present
= 0;
591 txhdr
->wep_key_len
= 0;
592 txhdr
->frame_type
= cpu_to_le32(skb_get_queue_mapping(skb
) + 4);
594 txhdr
->antenna
= (info
->antenna_sel_tx
== 0) ?
595 2 : info
->antenna_sel_tx
- 1;
596 txhdr
->output_power
= 0x7f; // HW Maximum
597 txhdr
->magic5
= (info
->flags
& IEEE80211_TX_CTL_NO_ACK
) ?
598 0 : ((rate
> 0x3) ? cpu_to_le32(0x33) : cpu_to_le32(0x23));
600 txhdr
->align
[0] = padding
;
602 /* modifies skb->cb and with it info, so must be last! */
603 p54_assign_address(dev
, skb
, hdr
, skb
->len
);
605 priv
->tx(dev
, hdr
, skb
->len
, 0);
609 static int p54_set_filter(struct ieee80211_hw
*dev
, u16 filter_type
,
610 const u8
*dst
, const u8
*src
, u8 antenna
,
611 u32 magic3
, u32 magic8
, u32 magic9
)
613 struct p54_common
*priv
= dev
->priv
;
614 struct p54_control_hdr
*hdr
;
615 struct p54_tx_control_filter
*filter
;
617 hdr
= kzalloc(sizeof(*hdr
) + sizeof(*filter
) +
618 priv
->tx_hdr_len
, GFP_ATOMIC
);
622 hdr
= (void *)hdr
+ priv
->tx_hdr_len
;
624 filter
= (struct p54_tx_control_filter
*) hdr
->data
;
625 hdr
->magic1
= cpu_to_le16(0x8001);
626 hdr
->len
= cpu_to_le16(sizeof(*filter
));
627 p54_assign_address(dev
, NULL
, hdr
, sizeof(*hdr
) + sizeof(*filter
));
628 hdr
->type
= cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET
);
630 filter
->filter_type
= cpu_to_le16(filter_type
);
631 memcpy(filter
->dst
, dst
, ETH_ALEN
);
633 memset(filter
->src
, ~0, ETH_ALEN
);
635 memcpy(filter
->src
, src
, ETH_ALEN
);
636 filter
->antenna
= antenna
;
637 filter
->magic3
= cpu_to_le32(magic3
);
638 filter
->rx_addr
= cpu_to_le32(priv
->rx_end
);
639 filter
->max_rx
= cpu_to_le16(0x0620); /* FIXME: for usb ver 1.. maybe */
640 filter
->rxhw
= priv
->rxhw
;
641 filter
->magic8
= cpu_to_le16(magic8
);
642 filter
->magic9
= cpu_to_le16(magic9
);
644 priv
->tx(dev
, hdr
, sizeof(*hdr
) + sizeof(*filter
), 1);
648 static int p54_set_freq(struct ieee80211_hw
*dev
, __le16 freq
)
650 struct p54_common
*priv
= dev
->priv
;
651 struct p54_control_hdr
*hdr
;
652 struct p54_tx_control_channel
*chan
;
654 size_t payload_len
= sizeof(*chan
) + sizeof(u32
)*2 +
655 sizeof(*chan
->curve_data
) *
656 priv
->curve_data
->points_per_channel
;
659 hdr
= kzalloc(sizeof(*hdr
) + payload_len
+
660 priv
->tx_hdr_len
, GFP_KERNEL
);
664 hdr
= (void *)hdr
+ priv
->tx_hdr_len
;
666 chan
= (struct p54_tx_control_channel
*) hdr
->data
;
668 hdr
->magic1
= cpu_to_le16(0x8001);
669 hdr
->len
= cpu_to_le16(sizeof(*chan
));
670 hdr
->type
= cpu_to_le16(P54_CONTROL_TYPE_CHANNEL_CHANGE
);
671 p54_assign_address(dev
, NULL
, hdr
, sizeof(*hdr
) + payload_len
);
673 chan
->magic1
= cpu_to_le16(0x1);
674 chan
->magic2
= cpu_to_le16(0x0);
676 for (i
= 0; i
< priv
->iq_autocal_len
; i
++) {
677 if (priv
->iq_autocal
[i
].freq
!= freq
)
680 memcpy(&chan
->iq_autocal
, &priv
->iq_autocal
[i
],
681 sizeof(*priv
->iq_autocal
));
684 if (i
== priv
->iq_autocal_len
)
687 for (i
= 0; i
< priv
->output_limit_len
; i
++) {
688 if (priv
->output_limit
[i
].freq
!= freq
)
691 chan
->val_barker
= 0x38;
692 chan
->val_bpsk
= priv
->output_limit
[i
].val_bpsk
;
693 chan
->val_qpsk
= priv
->output_limit
[i
].val_qpsk
;
694 chan
->val_16qam
= priv
->output_limit
[i
].val_16qam
;
695 chan
->val_64qam
= priv
->output_limit
[i
].val_64qam
;
698 if (i
== priv
->output_limit_len
)
701 chan
->pa_points_per_curve
= priv
->curve_data
->points_per_channel
;
703 entry
= priv
->curve_data
->data
;
704 for (i
= 0; i
< priv
->curve_data
->channels
; i
++) {
705 if (*((__le16
*)entry
) != freq
) {
706 entry
+= sizeof(__le16
);
707 entry
+= sizeof(struct pda_pa_curve_data_sample_rev1
) *
708 chan
->pa_points_per_curve
;
712 entry
+= sizeof(__le16
);
713 memcpy(chan
->curve_data
, entry
, sizeof(*chan
->curve_data
) *
714 chan
->pa_points_per_curve
);
718 memcpy(hdr
->data
+ payload_len
- 4, &chan
->val_bpsk
, 4);
720 priv
->tx(dev
, hdr
, sizeof(*hdr
) + payload_len
, 1);
724 printk(KERN_ERR
"%s: frequency change failed\n", wiphy_name(dev
->wiphy
));
729 static int p54_set_leds(struct ieee80211_hw
*dev
, int mode
, int link
, int act
)
731 struct p54_common
*priv
= dev
->priv
;
732 struct p54_control_hdr
*hdr
;
733 struct p54_tx_control_led
*led
;
735 hdr
= kzalloc(sizeof(*hdr
) + sizeof(*led
) +
736 priv
->tx_hdr_len
, GFP_KERNEL
);
740 hdr
= (void *)hdr
+ priv
->tx_hdr_len
;
741 hdr
->magic1
= cpu_to_le16(0x8001);
742 hdr
->len
= cpu_to_le16(sizeof(*led
));
743 hdr
->type
= cpu_to_le16(P54_CONTROL_TYPE_LED
);
744 p54_assign_address(dev
, NULL
, hdr
, sizeof(*hdr
) + sizeof(*led
));
746 led
= (struct p54_tx_control_led
*) hdr
->data
;
747 led
->mode
= cpu_to_le16(mode
);
748 led
->led_permanent
= cpu_to_le16(link
);
749 led
->led_temporary
= cpu_to_le16(act
);
750 led
->duration
= cpu_to_le16(1000);
752 priv
->tx(dev
, hdr
, sizeof(*hdr
) + sizeof(*led
), 1);
757 #define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \
759 queue.aifs = cpu_to_le16(ai_fs); \
760 queue.cwmin = cpu_to_le16(cw_min); \
761 queue.cwmax = cpu_to_le16(cw_max); \
762 queue.txop = cpu_to_le16(_txop); \
765 static void p54_init_vdcf(struct ieee80211_hw
*dev
)
767 struct p54_common
*priv
= dev
->priv
;
768 struct p54_control_hdr
*hdr
;
769 struct p54_tx_control_vdcf
*vdcf
;
771 /* all USB V1 adapters need a extra headroom */
772 hdr
= (void *)priv
->cached_vdcf
+ priv
->tx_hdr_len
;
773 hdr
->magic1
= cpu_to_le16(0x8001);
774 hdr
->len
= cpu_to_le16(sizeof(*vdcf
));
775 hdr
->type
= cpu_to_le16(P54_CONTROL_TYPE_DCFINIT
);
776 hdr
->req_id
= cpu_to_le32(priv
->rx_start
);
778 vdcf
= (struct p54_tx_control_vdcf
*) hdr
->data
;
780 P54_SET_QUEUE(vdcf
->queue
[0], 0x0002, 0x0003, 0x0007, 47);
781 P54_SET_QUEUE(vdcf
->queue
[1], 0x0002, 0x0007, 0x000f, 94);
782 P54_SET_QUEUE(vdcf
->queue
[2], 0x0003, 0x000f, 0x03ff, 0);
783 P54_SET_QUEUE(vdcf
->queue
[3], 0x0007, 0x000f, 0x03ff, 0);
786 static void p54_set_vdcf(struct ieee80211_hw
*dev
)
788 struct p54_common
*priv
= dev
->priv
;
789 struct p54_control_hdr
*hdr
;
790 struct p54_tx_control_vdcf
*vdcf
;
792 hdr
= (void *)priv
->cached_vdcf
+ priv
->tx_hdr_len
;
794 p54_assign_address(dev
, NULL
, hdr
, sizeof(*hdr
) + sizeof(*vdcf
));
796 vdcf
= (struct p54_tx_control_vdcf
*) hdr
->data
;
798 if (dev
->conf
.flags
& IEEE80211_CONF_SHORT_SLOT_TIME
) {
808 /* (see prism54/isl_oid.h for further details) */
809 vdcf
->frameburst
= cpu_to_le16(0);
811 priv
->tx(dev
, hdr
, sizeof(*hdr
) + sizeof(*vdcf
), 0);
814 static int p54_start(struct ieee80211_hw
*dev
)
816 struct p54_common
*priv
= dev
->priv
;
819 err
= priv
->open(dev
);
821 priv
->mode
= IEEE80211_IF_TYPE_MNTR
;
826 static void p54_stop(struct ieee80211_hw
*dev
)
828 struct p54_common
*priv
= dev
->priv
;
830 while ((skb
= skb_dequeue(&priv
->tx_queue
)))
833 priv
->mode
= IEEE80211_IF_TYPE_INVALID
;
836 static int p54_add_interface(struct ieee80211_hw
*dev
,
837 struct ieee80211_if_init_conf
*conf
)
839 struct p54_common
*priv
= dev
->priv
;
841 if (priv
->mode
!= IEEE80211_IF_TYPE_MNTR
)
844 switch (conf
->type
) {
845 case IEEE80211_IF_TYPE_STA
:
846 priv
->mode
= conf
->type
;
852 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
854 p54_set_filter(dev
, 0, priv
->mac_addr
, NULL
, 0, 1, 0, 0xF642);
855 p54_set_filter(dev
, 0, priv
->mac_addr
, NULL
, 1, 0, 0, 0xF642);
857 switch (conf
->type
) {
858 case IEEE80211_IF_TYPE_STA
:
859 p54_set_filter(dev
, 1, priv
->mac_addr
, NULL
, 0, 0x15F, 0x1F4, 0);
862 BUG(); /* impossible */
866 p54_set_leds(dev
, 1, 0, 0);
871 static void p54_remove_interface(struct ieee80211_hw
*dev
,
872 struct ieee80211_if_init_conf
*conf
)
874 struct p54_common
*priv
= dev
->priv
;
875 priv
->mode
= IEEE80211_IF_TYPE_MNTR
;
876 memset(priv
->mac_addr
, 0, ETH_ALEN
);
877 p54_set_filter(dev
, 0, priv
->mac_addr
, NULL
, 2, 0, 0, 0);
880 static int p54_config(struct ieee80211_hw
*dev
, struct ieee80211_conf
*conf
)
884 ret
= p54_set_freq(dev
, cpu_to_le16(conf
->channel
->center_freq
));
889 static int p54_config_interface(struct ieee80211_hw
*dev
,
890 struct ieee80211_vif
*vif
,
891 struct ieee80211_if_conf
*conf
)
893 struct p54_common
*priv
= dev
->priv
;
895 p54_set_filter(dev
, 0, priv
->mac_addr
, conf
->bssid
, 0, 1, 0, 0xF642);
896 p54_set_filter(dev
, 0, priv
->mac_addr
, conf
->bssid
, 2, 0, 0, 0);
897 p54_set_leds(dev
, 1, !is_multicast_ether_addr(conf
->bssid
), 0);
898 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
902 static void p54_configure_filter(struct ieee80211_hw
*dev
,
903 unsigned int changed_flags
,
904 unsigned int *total_flags
,
905 int mc_count
, struct dev_mc_list
*mclist
)
907 struct p54_common
*priv
= dev
->priv
;
909 *total_flags
&= FIF_BCN_PRBRESP_PROMISC
;
911 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
912 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
913 p54_set_filter(dev
, 0, priv
->mac_addr
,
916 p54_set_filter(dev
, 0, priv
->mac_addr
,
917 priv
->bssid
, 2, 0, 0, 0);
921 static int p54_conf_tx(struct ieee80211_hw
*dev
, u16 queue
,
922 const struct ieee80211_tx_queue_params
*params
)
924 struct p54_common
*priv
= dev
->priv
;
925 struct p54_tx_control_vdcf
*vdcf
;
927 vdcf
= (struct p54_tx_control_vdcf
*)(((struct p54_control_hdr
*)
928 ((void *)priv
->cached_vdcf
+ priv
->tx_hdr_len
))->data
);
930 if ((params
) && !(queue
> 4)) {
931 P54_SET_QUEUE(vdcf
->queue
[queue
], params
->aifs
,
932 params
->cw_min
, params
->cw_max
, params
->txop
);
941 static int p54_get_stats(struct ieee80211_hw
*dev
,
942 struct ieee80211_low_level_stats
*stats
)
948 static int p54_get_tx_stats(struct ieee80211_hw
*dev
,
949 struct ieee80211_tx_queue_stats
*stats
)
951 struct p54_common
*priv
= dev
->priv
;
953 memcpy(stats
, &priv
->tx_stats
, sizeof(stats
[0]) * dev
->queues
);
958 static const struct ieee80211_ops p54_ops
= {
962 .add_interface
= p54_add_interface
,
963 .remove_interface
= p54_remove_interface
,
964 .config
= p54_config
,
965 .config_interface
= p54_config_interface
,
966 .configure_filter
= p54_configure_filter
,
967 .conf_tx
= p54_conf_tx
,
968 .get_stats
= p54_get_stats
,
969 .get_tx_stats
= p54_get_tx_stats
972 struct ieee80211_hw
*p54_init_common(size_t priv_data_len
)
974 struct ieee80211_hw
*dev
;
975 struct p54_common
*priv
;
977 dev
= ieee80211_alloc_hw(priv_data_len
, &p54_ops
);
982 priv
->mode
= IEEE80211_IF_TYPE_INVALID
;
983 skb_queue_head_init(&priv
->tx_queue
);
984 dev
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &band_2GHz
;
985 dev
->flags
= IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING
| /* not sure */
986 IEEE80211_HW_RX_INCLUDES_FCS
|
987 IEEE80211_HW_SIGNAL_UNSPEC
;
988 dev
->channel_change_time
= 1000; /* TODO: find actual value */
989 dev
->max_signal
= 127;
991 priv
->tx_stats
[0].limit
= 5;
994 dev
->extra_tx_headroom
= sizeof(struct p54_control_hdr
) + 4 +
995 sizeof(struct p54_tx_control_allocdata
);
997 priv
->cached_vdcf
= kzalloc(sizeof(struct p54_tx_control_vdcf
) +
998 priv
->tx_hdr_len
+ sizeof(struct p54_control_hdr
), GFP_KERNEL
);
1000 if (!priv
->cached_vdcf
) {
1001 ieee80211_free_hw(dev
);
1009 EXPORT_SYMBOL_GPL(p54_init_common
);
1011 void p54_free_common(struct ieee80211_hw
*dev
)
1013 struct p54_common
*priv
= dev
->priv
;
1014 kfree(priv
->iq_autocal
);
1015 kfree(priv
->output_limit
);
1016 kfree(priv
->curve_data
);
1017 kfree(priv
->cached_vdcf
);
1019 EXPORT_SYMBOL_GPL(p54_free_common
);
1021 static int __init
p54_init(void)
1026 static void __exit
p54_exit(void)
1030 module_init(p54_init
);
1031 module_exit(p54_exit
);