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Commit | Line | Data |
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eff1a59c MW |
1 | /* |
2 | * Common code for mac80211 Prism54 drivers | |
3 | * | |
4 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> | |
5 | * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de> | |
c12abae3 | 6 | * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> |
eff1a59c | 7 | * |
27df605e JL |
8 | * Based on: |
9 | * - the islsm (softmac prism54) driver, which is: | |
10 | * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. | |
11 | * - stlc45xx driver | |
9483407d | 12 | * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). |
eff1a59c MW |
13 | * |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License version 2 as | |
16 | * published by the Free Software Foundation. | |
17 | */ | |
18 | ||
19 | #include <linux/init.h> | |
20 | #include <linux/firmware.h> | |
21 | #include <linux/etherdevice.h> | |
22 | ||
23 | #include <net/mac80211.h> | |
24 | ||
25 | #include "p54.h" | |
26 | #include "p54common.h" | |
27 | ||
25900ef0 CL |
28 | static int modparam_nohwcrypt; |
29 | module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO); | |
30 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); | |
eff1a59c MW |
31 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
32 | MODULE_DESCRIPTION("Softmac Prism54 common code"); | |
33 | MODULE_LICENSE("GPL"); | |
34 | MODULE_ALIAS("prism54common"); | |
35 | ||
1b997534 | 36 | static struct ieee80211_rate p54_bgrates[] = { |
8318d78a JB |
37 | { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
38 | { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
39 | { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
40 | { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
41 | { .bitrate = 60, .hw_value = 4, }, | |
42 | { .bitrate = 90, .hw_value = 5, }, | |
43 | { .bitrate = 120, .hw_value = 6, }, | |
44 | { .bitrate = 180, .hw_value = 7, }, | |
45 | { .bitrate = 240, .hw_value = 8, }, | |
46 | { .bitrate = 360, .hw_value = 9, }, | |
47 | { .bitrate = 480, .hw_value = 10, }, | |
48 | { .bitrate = 540, .hw_value = 11, }, | |
49 | }; | |
50 | ||
1b997534 | 51 | static struct ieee80211_channel p54_bgchannels[] = { |
8318d78a JB |
52 | { .center_freq = 2412, .hw_value = 1, }, |
53 | { .center_freq = 2417, .hw_value = 2, }, | |
54 | { .center_freq = 2422, .hw_value = 3, }, | |
55 | { .center_freq = 2427, .hw_value = 4, }, | |
56 | { .center_freq = 2432, .hw_value = 5, }, | |
57 | { .center_freq = 2437, .hw_value = 6, }, | |
58 | { .center_freq = 2442, .hw_value = 7, }, | |
59 | { .center_freq = 2447, .hw_value = 8, }, | |
60 | { .center_freq = 2452, .hw_value = 9, }, | |
61 | { .center_freq = 2457, .hw_value = 10, }, | |
62 | { .center_freq = 2462, .hw_value = 11, }, | |
63 | { .center_freq = 2467, .hw_value = 12, }, | |
64 | { .center_freq = 2472, .hw_value = 13, }, | |
65 | { .center_freq = 2484, .hw_value = 14, }, | |
66 | }; | |
67 | ||
c2976ab0 | 68 | static struct ieee80211_supported_band band_2GHz = { |
1b997534 CL |
69 | .channels = p54_bgchannels, |
70 | .n_channels = ARRAY_SIZE(p54_bgchannels), | |
71 | .bitrates = p54_bgrates, | |
72 | .n_bitrates = ARRAY_SIZE(p54_bgrates), | |
73 | }; | |
74 | ||
75 | static struct ieee80211_rate p54_arates[] = { | |
76 | { .bitrate = 60, .hw_value = 4, }, | |
77 | { .bitrate = 90, .hw_value = 5, }, | |
78 | { .bitrate = 120, .hw_value = 6, }, | |
79 | { .bitrate = 180, .hw_value = 7, }, | |
80 | { .bitrate = 240, .hw_value = 8, }, | |
81 | { .bitrate = 360, .hw_value = 9, }, | |
82 | { .bitrate = 480, .hw_value = 10, }, | |
83 | { .bitrate = 540, .hw_value = 11, }, | |
84 | }; | |
85 | ||
86 | static struct ieee80211_channel p54_achannels[] = { | |
87 | { .center_freq = 4920 }, | |
88 | { .center_freq = 4940 }, | |
89 | { .center_freq = 4960 }, | |
90 | { .center_freq = 4980 }, | |
91 | { .center_freq = 5040 }, | |
92 | { .center_freq = 5060 }, | |
93 | { .center_freq = 5080 }, | |
94 | { .center_freq = 5170 }, | |
95 | { .center_freq = 5180 }, | |
96 | { .center_freq = 5190 }, | |
97 | { .center_freq = 5200 }, | |
98 | { .center_freq = 5210 }, | |
99 | { .center_freq = 5220 }, | |
100 | { .center_freq = 5230 }, | |
101 | { .center_freq = 5240 }, | |
102 | { .center_freq = 5260 }, | |
103 | { .center_freq = 5280 }, | |
104 | { .center_freq = 5300 }, | |
105 | { .center_freq = 5320 }, | |
106 | { .center_freq = 5500 }, | |
107 | { .center_freq = 5520 }, | |
108 | { .center_freq = 5540 }, | |
109 | { .center_freq = 5560 }, | |
110 | { .center_freq = 5580 }, | |
111 | { .center_freq = 5600 }, | |
112 | { .center_freq = 5620 }, | |
113 | { .center_freq = 5640 }, | |
114 | { .center_freq = 5660 }, | |
115 | { .center_freq = 5680 }, | |
116 | { .center_freq = 5700 }, | |
117 | { .center_freq = 5745 }, | |
118 | { .center_freq = 5765 }, | |
119 | { .center_freq = 5785 }, | |
120 | { .center_freq = 5805 }, | |
121 | { .center_freq = 5825 }, | |
122 | }; | |
123 | ||
124 | static struct ieee80211_supported_band band_5GHz = { | |
125 | .channels = p54_achannels, | |
126 | .n_channels = ARRAY_SIZE(p54_achannels), | |
127 | .bitrates = p54_arates, | |
128 | .n_bitrates = ARRAY_SIZE(p54_arates), | |
8318d78a JB |
129 | }; |
130 | ||
4e416a6f | 131 | int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) |
eff1a59c MW |
132 | { |
133 | struct p54_common *priv = dev->priv; | |
134 | struct bootrec_exp_if *exp_if; | |
135 | struct bootrec *bootrec; | |
136 | u32 *data = (u32 *)fw->data; | |
137 | u32 *end_data = (u32 *)fw->data + (fw->size >> 2); | |
138 | u8 *fw_version = NULL; | |
139 | size_t len; | |
140 | int i; | |
51fb80fe | 141 | int maxlen; |
eff1a59c MW |
142 | |
143 | if (priv->rx_start) | |
4e416a6f | 144 | return 0; |
eff1a59c MW |
145 | |
146 | while (data < end_data && *data) | |
147 | data++; | |
148 | ||
149 | while (data < end_data && !*data) | |
150 | data++; | |
151 | ||
152 | bootrec = (struct bootrec *) data; | |
153 | ||
154 | while (bootrec->data <= end_data && | |
155 | (bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) { | |
156 | u32 code = le32_to_cpu(bootrec->code); | |
157 | switch (code) { | |
158 | case BR_CODE_COMPONENT_ID: | |
1f1c0e33 LF |
159 | priv->fw_interface = be32_to_cpup((__be32 *) |
160 | bootrec->data); | |
2b80848e | 161 | switch (priv->fw_interface) { |
eff1a59c | 162 | case FW_LM86: |
02e37ba1 CL |
163 | case FW_LM20: |
164 | case FW_LM87: { | |
165 | char *iftype = (char *)bootrec->data; | |
166 | printk(KERN_INFO "%s: p54 detected a LM%c%c " | |
167 | "firmware\n", | |
168 | wiphy_name(dev->wiphy), | |
169 | iftype[2], iftype[3]); | |
eff1a59c | 170 | break; |
02e37ba1 CL |
171 | } |
172 | case FW_FMAC: | |
eff1a59c | 173 | default: |
02e37ba1 CL |
174 | printk(KERN_ERR "%s: unsupported firmware\n", |
175 | wiphy_name(dev->wiphy)); | |
176 | return -ENODEV; | |
eff1a59c MW |
177 | } |
178 | break; | |
179 | case BR_CODE_COMPONENT_VERSION: | |
180 | /* 24 bytes should be enough for all firmwares */ | |
181 | if (strnlen((unsigned char*)bootrec->data, 24) < 24) | |
182 | fw_version = (unsigned char*)bootrec->data; | |
183 | break; | |
4e416a6f CL |
184 | case BR_CODE_DESCR: { |
185 | struct bootrec_desc *desc = | |
186 | (struct bootrec_desc *)bootrec->data; | |
187 | priv->rx_start = le32_to_cpu(desc->rx_start); | |
eff1a59c | 188 | /* FIXME add sanity checking */ |
4e416a6f CL |
189 | priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500; |
190 | priv->headroom = desc->headroom; | |
191 | priv->tailroom = desc->tailroom; | |
25900ef0 CL |
192 | priv->privacy_caps = desc->privacy_caps; |
193 | priv->rx_keycache_size = desc->rx_keycache_size; | |
1f1c0e33 | 194 | if (le32_to_cpu(bootrec->len) == 11) |
2e20cc39 | 195 | priv->rx_mtu = le16_to_cpu(desc->rx_mtu); |
4e416a6f CL |
196 | else |
197 | priv->rx_mtu = (size_t) | |
198 | 0x620 - priv->tx_hdr_len; | |
51fb80fe LF |
199 | maxlen = priv->tx_hdr_len + /* USB devices */ |
200 | sizeof(struct p54_rx_data) + | |
201 | 4 + /* rx alignment */ | |
202 | IEEE80211_MAX_FRAG_THRESHOLD; | |
203 | if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) { | |
204 | printk(KERN_INFO "p54: rx_mtu reduced from %d " | |
205 | "to %d\n", priv->rx_mtu, | |
206 | maxlen); | |
207 | priv->rx_mtu = maxlen; | |
208 | } | |
eff1a59c | 209 | break; |
4e416a6f | 210 | } |
eff1a59c MW |
211 | case BR_CODE_EXPOSED_IF: |
212 | exp_if = (struct bootrec_exp_if *) bootrec->data; | |
213 | for (i = 0; i < (len * sizeof(*exp_if) / 4); i++) | |
dc73c623 | 214 | if (exp_if[i].if_id == cpu_to_le16(0x1a)) |
eff1a59c MW |
215 | priv->fw_var = le16_to_cpu(exp_if[i].variant); |
216 | break; | |
217 | case BR_CODE_DEPENDENT_IF: | |
218 | break; | |
219 | case BR_CODE_END_OF_BRA: | |
220 | case LEGACY_BR_CODE_END_OF_BRA: | |
221 | end_data = NULL; | |
222 | break; | |
223 | default: | |
224 | break; | |
225 | } | |
226 | bootrec = (struct bootrec *)&bootrec->data[len]; | |
227 | } | |
228 | ||
229 | if (fw_version) | |
02e37ba1 CL |
230 | printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n", |
231 | wiphy_name(dev->wiphy), fw_version, | |
232 | priv->fw_var >> 8, priv->fw_var & 0xff); | |
eff1a59c | 233 | |
9a8675d7 | 234 | if (priv->fw_var < 0x500) |
02e37ba1 | 235 | printk(KERN_INFO "%s: you are using an obsolete firmware. " |
9a8675d7 | 236 | "visit http://wireless.kernel.org/en/users/Drivers/p54 " |
02e37ba1 CL |
237 | "and grab one for \"kernel >= 2.6.28\"!\n", |
238 | wiphy_name(dev->wiphy)); | |
9a8675d7 | 239 | |
eff1a59c MW |
240 | if (priv->fw_var >= 0x300) { |
241 | /* Firmware supports QoS, use it! */ | |
9e7f3f8e CL |
242 | priv->tx_stats[4].limit = 3; /* AC_VO */ |
243 | priv->tx_stats[5].limit = 4; /* AC_VI */ | |
244 | priv->tx_stats[6].limit = 3; /* AC_BE */ | |
245 | priv->tx_stats[7].limit = 2; /* AC_BK */ | |
eff1a59c MW |
246 | dev->queues = 4; |
247 | } | |
4e416a6f | 248 | |
25900ef0 CL |
249 | if (!modparam_nohwcrypt) |
250 | printk(KERN_INFO "%s: cryptographic accelerator " | |
251 | "WEP:%s, TKIP:%s, CCMP:%s\n", | |
252 | wiphy_name(dev->wiphy), | |
253 | (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" : | |
254 | "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP | | |
255 | BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no", | |
256 | (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ? | |
257 | "YES" : "no"); | |
258 | ||
4e416a6f | 259 | return 0; |
eff1a59c MW |
260 | } |
261 | EXPORT_SYMBOL_GPL(p54_parse_firmware); | |
262 | ||
154e3af1 CL |
263 | static int p54_convert_rev0(struct ieee80211_hw *dev, |
264 | struct pda_pa_curve_data *curve_data) | |
eff1a59c MW |
265 | { |
266 | struct p54_common *priv = dev->priv; | |
154e3af1 CL |
267 | struct p54_pa_curve_data_sample *dst; |
268 | struct pda_pa_curve_data_sample_rev0 *src; | |
eff1a59c | 269 | size_t cd_len = sizeof(*curve_data) + |
154e3af1 | 270 | (curve_data->points_per_channel*sizeof(*dst) + 2) * |
eff1a59c MW |
271 | curve_data->channels; |
272 | unsigned int i, j; | |
273 | void *source, *target; | |
274 | ||
275 | priv->curve_data = kmalloc(cd_len, GFP_KERNEL); | |
276 | if (!priv->curve_data) | |
277 | return -ENOMEM; | |
278 | ||
279 | memcpy(priv->curve_data, curve_data, sizeof(*curve_data)); | |
280 | source = curve_data->data; | |
281 | target = priv->curve_data->data; | |
282 | for (i = 0; i < curve_data->channels; i++) { | |
283 | __le16 *freq = source; | |
284 | source += sizeof(__le16); | |
285 | *((__le16 *)target) = *freq; | |
286 | target += sizeof(__le16); | |
287 | for (j = 0; j < curve_data->points_per_channel; j++) { | |
154e3af1 CL |
288 | dst = target; |
289 | src = source; | |
eff1a59c | 290 | |
154e3af1 CL |
291 | dst->rf_power = src->rf_power; |
292 | dst->pa_detector = src->pa_detector; | |
293 | dst->data_64qam = src->pcv; | |
eff1a59c MW |
294 | /* "invent" the points for the other modulations */ |
295 | #define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y) | |
154e3af1 CL |
296 | dst->data_16qam = SUB(src->pcv, 12); |
297 | dst->data_qpsk = SUB(dst->data_16qam, 12); | |
298 | dst->data_bpsk = SUB(dst->data_qpsk, 12); | |
299 | dst->data_barker = SUB(dst->data_bpsk, 14); | |
eff1a59c | 300 | #undef SUB |
154e3af1 CL |
301 | target += sizeof(*dst); |
302 | source += sizeof(*src); | |
eff1a59c MW |
303 | } |
304 | } | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
154e3af1 CL |
309 | static int p54_convert_rev1(struct ieee80211_hw *dev, |
310 | struct pda_pa_curve_data *curve_data) | |
311 | { | |
312 | struct p54_common *priv = dev->priv; | |
313 | struct p54_pa_curve_data_sample *dst; | |
314 | struct pda_pa_curve_data_sample_rev1 *src; | |
315 | size_t cd_len = sizeof(*curve_data) + | |
316 | (curve_data->points_per_channel*sizeof(*dst) + 2) * | |
317 | curve_data->channels; | |
318 | unsigned int i, j; | |
319 | void *source, *target; | |
320 | ||
321 | priv->curve_data = kmalloc(cd_len, GFP_KERNEL); | |
322 | if (!priv->curve_data) | |
323 | return -ENOMEM; | |
324 | ||
325 | memcpy(priv->curve_data, curve_data, sizeof(*curve_data)); | |
326 | source = curve_data->data; | |
327 | target = priv->curve_data->data; | |
328 | for (i = 0; i < curve_data->channels; i++) { | |
329 | __le16 *freq = source; | |
330 | source += sizeof(__le16); | |
331 | *((__le16 *)target) = *freq; | |
332 | target += sizeof(__le16); | |
333 | for (j = 0; j < curve_data->points_per_channel; j++) { | |
334 | memcpy(target, source, sizeof(*src)); | |
335 | ||
336 | target += sizeof(*dst); | |
337 | source += sizeof(*src); | |
338 | } | |
339 | source++; | |
340 | } | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
4cc683c9 CL |
345 | static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2", |
346 | "Frisbee", "Xbow", "Longbow", "NULL", "NULL" }; | |
1b997534 | 347 | static int p54_init_xbow_synth(struct ieee80211_hw *dev); |
7cb77072 | 348 | |
69ba3e5d CL |
349 | static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len, |
350 | u16 type) | |
351 | { | |
352 | struct p54_common *priv = dev->priv; | |
353 | int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0; | |
354 | int entry_size = sizeof(struct pda_rssi_cal_entry) + offset; | |
355 | int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2; | |
356 | int i; | |
357 | ||
358 | if (len != (entry_size * num_entries)) { | |
359 | printk(KERN_ERR "%s: unknown rssi calibration data packing " | |
360 | " type:(%x) len:%d.\n", | |
361 | wiphy_name(dev->wiphy), type, len); | |
362 | ||
363 | print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE, | |
364 | data, len); | |
365 | ||
366 | printk(KERN_ERR "%s: please report this issue.\n", | |
367 | wiphy_name(dev->wiphy)); | |
368 | return; | |
369 | } | |
370 | ||
371 | for (i = 0; i < num_entries; i++) { | |
372 | struct pda_rssi_cal_entry *cal = data + | |
373 | (offset + i * entry_size); | |
374 | priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul); | |
375 | priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add); | |
376 | } | |
377 | } | |
378 | ||
1f1c0e33 | 379 | static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) |
eff1a59c MW |
380 | { |
381 | struct p54_common *priv = dev->priv; | |
382 | struct eeprom_pda_wrap *wrap = NULL; | |
383 | struct pda_entry *entry; | |
eff1a59c MW |
384 | unsigned int data_len, entry_len; |
385 | void *tmp; | |
386 | int err; | |
c2f2d3a0 | 387 | u8 *end = (u8 *)eeprom + len; |
f2c2e255 | 388 | u16 synth = 0; |
eff1a59c MW |
389 | |
390 | wrap = (struct eeprom_pda_wrap *) eeprom; | |
8c28293f | 391 | entry = (void *)wrap->data + le16_to_cpu(wrap->len); |
c2f2d3a0 JB |
392 | |
393 | /* verify that at least the entry length/code fits */ | |
394 | while ((u8 *)entry <= end - sizeof(*entry)) { | |
eff1a59c MW |
395 | entry_len = le16_to_cpu(entry->len); |
396 | data_len = ((entry_len - 1) << 1); | |
c2f2d3a0 JB |
397 | |
398 | /* abort if entry exceeds whole structure */ | |
399 | if ((u8 *)entry + sizeof(*entry) + data_len > end) | |
400 | break; | |
401 | ||
eff1a59c MW |
402 | switch (le16_to_cpu(entry->code)) { |
403 | case PDR_MAC_ADDRESS: | |
404 | SET_IEEE80211_PERM_ADDR(dev, entry->data); | |
405 | break; | |
406 | case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS: | |
407 | if (data_len < 2) { | |
408 | err = -EINVAL; | |
409 | goto err; | |
410 | } | |
411 | ||
412 | if (2 + entry->data[1]*sizeof(*priv->output_limit) > data_len) { | |
413 | err = -EINVAL; | |
414 | goto err; | |
415 | } | |
416 | ||
417 | priv->output_limit = kmalloc(entry->data[1] * | |
418 | sizeof(*priv->output_limit), GFP_KERNEL); | |
419 | ||
420 | if (!priv->output_limit) { | |
421 | err = -ENOMEM; | |
422 | goto err; | |
423 | } | |
424 | ||
425 | memcpy(priv->output_limit, &entry->data[2], | |
426 | entry->data[1]*sizeof(*priv->output_limit)); | |
427 | priv->output_limit_len = entry->data[1]; | |
428 | break; | |
154e3af1 CL |
429 | case PDR_PRISM_PA_CAL_CURVE_DATA: { |
430 | struct pda_pa_curve_data *curve_data = | |
431 | (struct pda_pa_curve_data *)entry->data; | |
432 | if (data_len < sizeof(*curve_data)) { | |
eff1a59c MW |
433 | err = -EINVAL; |
434 | goto err; | |
435 | } | |
436 | ||
154e3af1 CL |
437 | switch (curve_data->cal_method_rev) { |
438 | case 0: | |
439 | err = p54_convert_rev0(dev, curve_data); | |
440 | break; | |
441 | case 1: | |
442 | err = p54_convert_rev1(dev, curve_data); | |
443 | break; | |
444 | default: | |
02e37ba1 | 445 | printk(KERN_ERR "%s: unknown curve data " |
154e3af1 | 446 | "revision %d\n", |
02e37ba1 | 447 | wiphy_name(dev->wiphy), |
154e3af1 CL |
448 | curve_data->cal_method_rev); |
449 | err = -ENODEV; | |
450 | break; | |
eff1a59c | 451 | } |
154e3af1 CL |
452 | if (err) |
453 | goto err; | |
eff1a59c | 454 | |
154e3af1 | 455 | } |
eff1a59c MW |
456 | case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: |
457 | priv->iq_autocal = kmalloc(data_len, GFP_KERNEL); | |
458 | if (!priv->iq_autocal) { | |
459 | err = -ENOMEM; | |
460 | goto err; | |
461 | } | |
462 | ||
463 | memcpy(priv->iq_autocal, entry->data, data_len); | |
464 | priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry); | |
465 | break; | |
466 | case PDR_INTERFACE_LIST: | |
467 | tmp = entry->data; | |
468 | while ((u8 *)tmp < entry->data + data_len) { | |
469 | struct bootrec_exp_if *exp_if = tmp; | |
4cc683c9 CL |
470 | if (le16_to_cpu(exp_if->if_id) == 0xf) |
471 | synth = le16_to_cpu(exp_if->variant); | |
eff1a59c MW |
472 | tmp += sizeof(struct bootrec_exp_if); |
473 | } | |
474 | break; | |
475 | case PDR_HARDWARE_PLATFORM_COMPONENT_ID: | |
476 | priv->version = *(u8 *)(entry->data + 1); | |
477 | break; | |
69ba3e5d CL |
478 | case PDR_RSSI_LINEAR_APPROXIMATION: |
479 | case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND: | |
480 | case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED: | |
481 | p54_parse_rssical(dev, entry->data, data_len, | |
482 | le16_to_cpu(entry->code)); | |
483 | break; | |
eff1a59c | 484 | case PDR_END: |
c2f2d3a0 JB |
485 | /* make it overrun */ |
486 | entry_len = len; | |
eff1a59c | 487 | break; |
c8034c44 PR |
488 | case PDR_MANUFACTURING_PART_NUMBER: |
489 | case PDR_PDA_VERSION: | |
490 | case PDR_NIC_SERIAL_NUMBER: | |
491 | case PDR_REGULATORY_DOMAIN_LIST: | |
492 | case PDR_TEMPERATURE_TYPE: | |
493 | case PDR_PRISM_PCI_IDENTIFIER: | |
494 | case PDR_COUNTRY_INFORMATION: | |
495 | case PDR_OEM_NAME: | |
496 | case PDR_PRODUCT_NAME: | |
497 | case PDR_UTF8_OEM_NAME: | |
498 | case PDR_UTF8_PRODUCT_NAME: | |
499 | case PDR_COUNTRY_LIST: | |
500 | case PDR_DEFAULT_COUNTRY: | |
501 | case PDR_ANTENNA_GAIN: | |
502 | case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA: | |
c8034c44 | 503 | case PDR_REGULATORY_POWER_LIMITS: |
c8034c44 PR |
504 | case PDR_RADIATED_TRANSMISSION_CORRECTION: |
505 | case PDR_PRISM_TX_IQ_CALIBRATION: | |
506 | case PDR_BASEBAND_REGISTERS: | |
507 | case PDR_PER_CHANNEL_BASEBAND_REGISTERS: | |
508 | break; | |
58e30739 | 509 | default: |
02e37ba1 CL |
510 | printk(KERN_INFO "%s: unknown eeprom code : 0x%x\n", |
511 | wiphy_name(dev->wiphy), | |
58e30739 FF |
512 | le16_to_cpu(entry->code)); |
513 | break; | |
eff1a59c MW |
514 | } |
515 | ||
516 | entry = (void *)entry + (entry_len + 1)*2; | |
eff1a59c MW |
517 | } |
518 | ||
f2c2e255 CL |
519 | if (!synth || !priv->iq_autocal || !priv->output_limit || |
520 | !priv->curve_data) { | |
02e37ba1 CL |
521 | printk(KERN_ERR "%s: not all required entries found in eeprom!\n", |
522 | wiphy_name(dev->wiphy)); | |
eff1a59c MW |
523 | err = -EINVAL; |
524 | goto err; | |
525 | } | |
526 | ||
9e7f3f8e | 527 | priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK; |
4cc683c9 | 528 | if (priv->rxhw == 4) |
1b997534 | 529 | p54_init_xbow_synth(dev); |
9e7f3f8e | 530 | if (!(synth & PDR_SYNTH_24_GHZ_DISABLED)) |
1b997534 | 531 | dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz; |
9e7f3f8e | 532 | if (!(synth & PDR_SYNTH_5_GHZ_DISABLED)) |
4cc683c9 | 533 | dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz; |
7cb77072 CL |
534 | |
535 | if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { | |
536 | u8 perm_addr[ETH_ALEN]; | |
537 | ||
538 | printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n", | |
539 | wiphy_name(dev->wiphy)); | |
540 | random_ether_addr(perm_addr); | |
541 | SET_IEEE80211_PERM_ADDR(dev, perm_addr); | |
542 | } | |
543 | ||
e174961c | 544 | printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n", |
7cb77072 | 545 | wiphy_name(dev->wiphy), |
e174961c | 546 | dev->wiphy->perm_addr, |
7cb77072 CL |
547 | priv->version, p54_rf_chips[priv->rxhw]); |
548 | ||
eff1a59c MW |
549 | return 0; |
550 | ||
551 | err: | |
552 | if (priv->iq_autocal) { | |
553 | kfree(priv->iq_autocal); | |
554 | priv->iq_autocal = NULL; | |
555 | } | |
556 | ||
557 | if (priv->output_limit) { | |
558 | kfree(priv->output_limit); | |
559 | priv->output_limit = NULL; | |
560 | } | |
561 | ||
562 | if (priv->curve_data) { | |
563 | kfree(priv->curve_data); | |
564 | priv->curve_data = NULL; | |
565 | } | |
566 | ||
02e37ba1 CL |
567 | printk(KERN_ERR "%s: eeprom parse failed!\n", |
568 | wiphy_name(dev->wiphy)); | |
eff1a59c MW |
569 | return err; |
570 | } | |
eff1a59c | 571 | |
cc6de669 CL |
572 | static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi) |
573 | { | |
69ba3e5d CL |
574 | struct p54_common *priv = dev->priv; |
575 | int band = dev->conf.channel->band; | |
576 | ||
577 | return ((rssi * priv->rssical_db[band].mul) / 64 + | |
578 | priv->rssical_db[band].add) / 4; | |
cc6de669 CL |
579 | } |
580 | ||
19c19d54 | 581 | static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) |
eff1a59c | 582 | { |
a0db663f | 583 | struct p54_common *priv = dev->priv; |
27df605e | 584 | struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data; |
eff1a59c MW |
585 | struct ieee80211_rx_status rx_status = {0}; |
586 | u16 freq = le16_to_cpu(hdr->freq); | |
19c19d54 | 587 | size_t header_len = sizeof(*hdr); |
a0db663f | 588 | u32 tsf32; |
eff1a59c | 589 | |
59651e89 CL |
590 | /* |
591 | * If the device is in a unspecified state we have to | |
592 | * ignore all data frames. Else we could end up with a | |
593 | * nasty crash. | |
594 | */ | |
595 | if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) | |
596 | return 0; | |
597 | ||
27df605e | 598 | if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) { |
78d57eb2 CL |
599 | if (priv->filter_flags & FIF_FCSFAIL) |
600 | rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; | |
601 | else | |
602 | return 0; | |
603 | } | |
604 | ||
25900ef0 CL |
605 | if (hdr->decrypt_status == P54_DECRYPT_OK) |
606 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
607 | if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) || | |
608 | (hdr->decrypt_status == P54_DECRYPT_FAIL_TKIP)) | |
609 | rx_status.flag |= RX_FLAG_MMIC_ERROR; | |
610 | ||
cc6de669 CL |
611 | rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi); |
612 | rx_status.noise = priv->noise; | |
8318d78a | 613 | /* XX correct? */ |
18d72605 | 614 | rx_status.qual = (100 * hdr->rssi) / 127; |
ffed7858 CL |
615 | if (hdr->rate & 0x10) |
616 | rx_status.flag |= RX_FLAG_SHORTPRE; | |
cf3e74c2 CL |
617 | rx_status.rate_idx = (dev->conf.channel->band == IEEE80211_BAND_2GHZ ? |
618 | hdr->rate : (hdr->rate - 4)) & 0xf; | |
eff1a59c | 619 | rx_status.freq = freq; |
cf3e74c2 | 620 | rx_status.band = dev->conf.channel->band; |
eff1a59c | 621 | rx_status.antenna = hdr->antenna; |
a0db663f CL |
622 | |
623 | tsf32 = le32_to_cpu(hdr->tsf32); | |
624 | if (tsf32 < priv->tsf_low32) | |
625 | priv->tsf_high32++; | |
626 | rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32; | |
627 | priv->tsf_low32 = tsf32; | |
628 | ||
03bffc13 | 629 | rx_status.flag |= RX_FLAG_TSFT; |
eff1a59c | 630 | |
27df605e | 631 | if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN)) |
19c19d54 CL |
632 | header_len += hdr->align[0]; |
633 | ||
634 | skb_pull(skb, header_len); | |
eff1a59c MW |
635 | skb_trim(skb, le16_to_cpu(hdr->len)); |
636 | ||
637 | ieee80211_rx_irqsafe(dev, skb, &rx_status); | |
19c19d54 | 638 | |
54fdb040 CL |
639 | queue_delayed_work(dev->workqueue, &priv->work, |
640 | msecs_to_jiffies(P54_STATISTICS_UPDATE)); | |
641 | ||
19c19d54 | 642 | return -1; |
eff1a59c MW |
643 | } |
644 | ||
645 | static void inline p54_wake_free_queues(struct ieee80211_hw *dev) | |
646 | { | |
647 | struct p54_common *priv = dev->priv; | |
648 | int i; | |
649 | ||
b92f30d6 CL |
650 | if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) |
651 | return ; | |
652 | ||
eff1a59c | 653 | for (i = 0; i < dev->queues; i++) |
84df3ed3 | 654 | if (priv->tx_stats[i + 4].len < priv->tx_stats[i + 4].limit) |
eff1a59c MW |
655 | ieee80211_wake_queue(dev, i); |
656 | } | |
657 | ||
b92f30d6 CL |
658 | void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb) |
659 | { | |
660 | struct p54_common *priv = dev->priv; | |
661 | struct ieee80211_tx_info *info; | |
662 | struct memrecord *range; | |
663 | unsigned long flags; | |
664 | u32 freed = 0, last_addr = priv->rx_start; | |
665 | ||
ffed7858 | 666 | if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue))) |
b92f30d6 CL |
667 | return; |
668 | ||
59651e89 CL |
669 | /* |
670 | * don't try to free an already unlinked skb | |
671 | */ | |
672 | if (unlikely((!skb->next) || (!skb->prev))) | |
673 | return; | |
674 | ||
b92f30d6 CL |
675 | spin_lock_irqsave(&priv->tx_queue.lock, flags); |
676 | info = IEEE80211_SKB_CB(skb); | |
677 | range = (void *)info->rate_driver_data; | |
678 | if (skb->prev != (struct sk_buff *)&priv->tx_queue) { | |
679 | struct ieee80211_tx_info *ni; | |
680 | struct memrecord *mr; | |
681 | ||
682 | ni = IEEE80211_SKB_CB(skb->prev); | |
683 | mr = (struct memrecord *)ni->rate_driver_data; | |
684 | last_addr = mr->end_addr; | |
685 | } | |
686 | if (skb->next != (struct sk_buff *)&priv->tx_queue) { | |
687 | struct ieee80211_tx_info *ni; | |
688 | struct memrecord *mr; | |
689 | ||
690 | ni = IEEE80211_SKB_CB(skb->next); | |
691 | mr = (struct memrecord *)ni->rate_driver_data; | |
692 | freed = mr->start_addr - last_addr; | |
693 | } else | |
694 | freed = priv->rx_end - last_addr; | |
695 | __skb_unlink(skb, &priv->tx_queue); | |
696 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
0a5ec96a | 697 | dev_kfree_skb_any(skb); |
b92f30d6 | 698 | |
27df605e | 699 | if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 + |
b92f30d6 CL |
700 | IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom) |
701 | p54_wake_free_queues(dev); | |
702 | } | |
703 | EXPORT_SYMBOL_GPL(p54_free_skb); | |
704 | ||
54fdb040 CL |
705 | static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev, |
706 | __le32 req_id) | |
707 | { | |
708 | struct p54_common *priv = dev->priv; | |
709 | struct sk_buff *entry = priv->tx_queue.next; | |
710 | unsigned long flags; | |
711 | ||
712 | spin_lock_irqsave(&priv->tx_queue.lock, flags); | |
713 | while (entry != (struct sk_buff *)&priv->tx_queue) { | |
714 | struct p54_hdr *hdr = (struct p54_hdr *) entry->data; | |
715 | ||
716 | if (hdr->req_id == req_id) { | |
717 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
718 | return entry; | |
719 | } | |
720 | entry = entry->next; | |
721 | } | |
722 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
723 | return NULL; | |
724 | } | |
725 | ||
eff1a59c MW |
726 | static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) |
727 | { | |
728 | struct p54_common *priv = dev->priv; | |
27df605e JL |
729 | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; |
730 | struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data; | |
eff1a59c | 731 | struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next; |
4e416a6f | 732 | u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom; |
eff1a59c MW |
733 | struct memrecord *range = NULL; |
734 | u32 freed = 0; | |
735 | u32 last_addr = priv->rx_start; | |
031d10ee | 736 | unsigned long flags; |
c12abae3 | 737 | int count, idx; |
eff1a59c | 738 | |
031d10ee | 739 | spin_lock_irqsave(&priv->tx_queue.lock, flags); |
eff1a59c | 740 | while (entry != (struct sk_buff *)&priv->tx_queue) { |
552fe53f | 741 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); |
27df605e JL |
742 | struct p54_hdr *entry_hdr; |
743 | struct p54_tx_data *entry_data; | |
9de5776f | 744 | int pad = 0; |
eff1a59c | 745 | |
9de5776f CL |
746 | range = (void *)info->rate_driver_data; |
747 | if (range->start_addr != addr) { | |
748 | last_addr = range->end_addr; | |
749 | entry = entry->next; | |
750 | continue; | |
751 | } | |
552fe53f | 752 | |
9de5776f CL |
753 | if (entry->next != (struct sk_buff *)&priv->tx_queue) { |
754 | struct ieee80211_tx_info *ni; | |
755 | struct memrecord *mr; | |
eff1a59c | 756 | |
9de5776f CL |
757 | ni = IEEE80211_SKB_CB(entry->next); |
758 | mr = (struct memrecord *)ni->rate_driver_data; | |
759 | freed = mr->start_addr - last_addr; | |
760 | } else | |
761 | freed = priv->rx_end - last_addr; | |
762 | ||
763 | last_addr = range->end_addr; | |
764 | __skb_unlink(entry, &priv->tx_queue); | |
765 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
766 | ||
c772a08b CL |
767 | entry_hdr = (struct p54_hdr *) entry->data; |
768 | entry_data = (struct p54_tx_data *) entry_hdr->data; | |
769 | priv->tx_stats[entry_data->hw_queue].len--; | |
ee370ced | 770 | priv->stats.dot11ACKFailureCount += payload->tries - 1; |
c772a08b | 771 | |
e5ea92a7 CL |
772 | if (unlikely(entry == priv->cached_beacon)) { |
773 | kfree_skb(entry); | |
774 | priv->cached_beacon = NULL; | |
775 | goto out; | |
776 | } | |
777 | ||
9de5776f CL |
778 | /* |
779 | * Clear manually, ieee80211_tx_info_clear_status would | |
780 | * clear the counts too and we need them. | |
781 | */ | |
782 | memset(&info->status.ampdu_ack_len, 0, | |
783 | sizeof(struct ieee80211_tx_info) - | |
784 | offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); | |
785 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, | |
786 | status.ampdu_ack_len) != 23); | |
787 | ||
27df605e | 788 | if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN)) |
9de5776f CL |
789 | pad = entry_data->align[0]; |
790 | ||
791 | /* walk through the rates array and adjust the counts */ | |
27df605e | 792 | count = payload->tries; |
9de5776f CL |
793 | for (idx = 0; idx < 4; idx++) { |
794 | if (count >= info->status.rates[idx].count) { | |
795 | count -= info->status.rates[idx].count; | |
796 | } else if (count > 0) { | |
797 | info->status.rates[idx].count = count; | |
798 | count = 0; | |
799 | } else { | |
800 | info->status.rates[idx].idx = -1; | |
801 | info->status.rates[idx].count = 0; | |
eff1a59c | 802 | } |
9de5776f | 803 | } |
c12abae3 | 804 | |
9de5776f CL |
805 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && |
806 | (!payload->status)) | |
807 | info->flags |= IEEE80211_TX_STAT_ACK; | |
9e7f3f8e | 808 | if (payload->status & P54_TX_PSM_CANCELLED) |
9de5776f CL |
809 | info->flags |= IEEE80211_TX_STAT_TX_FILTERED; |
810 | info->status.ack_signal = p54_rssi_to_dbm(dev, | |
27df605e | 811 | (int)payload->ack_rssi); |
9de5776f CL |
812 | skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); |
813 | ieee80211_tx_status_irqsafe(dev, entry); | |
814 | goto out; | |
eff1a59c | 815 | } |
031d10ee | 816 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); |
eff1a59c | 817 | |
031d10ee | 818 | out: |
27df605e | 819 | if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 + |
9de5776f | 820 | IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom) |
eff1a59c MW |
821 | p54_wake_free_queues(dev); |
822 | } | |
823 | ||
7cb77072 CL |
824 | static void p54_rx_eeprom_readback(struct ieee80211_hw *dev, |
825 | struct sk_buff *skb) | |
826 | { | |
27df605e | 827 | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; |
7cb77072 CL |
828 | struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data; |
829 | struct p54_common *priv = dev->priv; | |
830 | ||
831 | if (!priv->eeprom) | |
832 | return ; | |
833 | ||
64c354dd CL |
834 | if (priv->fw_var >= 0x509) { |
835 | memcpy(priv->eeprom, eeprom->v2.data, | |
836 | le16_to_cpu(eeprom->v2.len)); | |
837 | } else { | |
838 | memcpy(priv->eeprom, eeprom->v1.data, | |
839 | le16_to_cpu(eeprom->v1.len)); | |
840 | } | |
7cb77072 CL |
841 | |
842 | complete(&priv->eeprom_comp); | |
843 | } | |
844 | ||
cc6de669 CL |
845 | static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb) |
846 | { | |
847 | struct p54_common *priv = dev->priv; | |
27df605e | 848 | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; |
cc6de669 | 849 | struct p54_statistics *stats = (struct p54_statistics *) hdr->data; |
54fdb040 CL |
850 | u32 tsf32; |
851 | ||
852 | if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) | |
853 | return ; | |
cc6de669 | 854 | |
54fdb040 | 855 | tsf32 = le32_to_cpu(stats->tsf32); |
cc6de669 CL |
856 | if (tsf32 < priv->tsf_low32) |
857 | priv->tsf_high32++; | |
858 | priv->tsf_low32 = tsf32; | |
859 | ||
860 | priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail); | |
861 | priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success); | |
862 | priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs); | |
863 | ||
864 | priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise)); | |
cc6de669 | 865 | |
54fdb040 | 866 | p54_free_skb(dev, p54_find_tx_entry(dev, hdr->req_id)); |
cc6de669 CL |
867 | } |
868 | ||
e5ea92a7 CL |
869 | static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb) |
870 | { | |
871 | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; | |
872 | struct p54_trap *trap = (struct p54_trap *) hdr->data; | |
873 | u16 event = le16_to_cpu(trap->event); | |
874 | u16 freq = le16_to_cpu(trap->frequency); | |
875 | ||
876 | switch (event) { | |
877 | case P54_TRAP_BEACON_TX: | |
878 | break; | |
879 | case P54_TRAP_RADAR: | |
880 | printk(KERN_INFO "%s: radar (freq:%d MHz)\n", | |
881 | wiphy_name(dev->wiphy), freq); | |
882 | break; | |
883 | case P54_TRAP_NO_BEACON: | |
884 | break; | |
885 | case P54_TRAP_SCAN: | |
886 | break; | |
887 | case P54_TRAP_TBTT: | |
888 | break; | |
889 | case P54_TRAP_TIMER: | |
890 | break; | |
891 | default: | |
892 | printk(KERN_INFO "%s: received event:%x freq:%d\n", | |
893 | wiphy_name(dev->wiphy), event, freq); | |
894 | break; | |
895 | } | |
896 | } | |
897 | ||
19c19d54 | 898 | static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb) |
eff1a59c | 899 | { |
27df605e | 900 | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; |
eff1a59c MW |
901 | |
902 | switch (le16_to_cpu(hdr->type)) { | |
903 | case P54_CONTROL_TYPE_TXDONE: | |
904 | p54_rx_frame_sent(dev, skb); | |
905 | break; | |
e5ea92a7 CL |
906 | case P54_CONTROL_TYPE_TRAP: |
907 | p54_rx_trap(dev, skb); | |
908 | break; | |
eff1a59c MW |
909 | case P54_CONTROL_TYPE_BBP: |
910 | break; | |
cc6de669 CL |
911 | case P54_CONTROL_TYPE_STAT_READBACK: |
912 | p54_rx_stats(dev, skb); | |
913 | break; | |
7cb77072 CL |
914 | case P54_CONTROL_TYPE_EEPROM_READBACK: |
915 | p54_rx_eeprom_readback(dev, skb); | |
916 | break; | |
eff1a59c MW |
917 | default: |
918 | printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n", | |
919 | wiphy_name(dev->wiphy), le16_to_cpu(hdr->type)); | |
920 | break; | |
921 | } | |
19c19d54 CL |
922 | |
923 | return 0; | |
eff1a59c MW |
924 | } |
925 | ||
926 | /* returns zero if skb can be reused */ | |
927 | int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb) | |
928 | { | |
9e7f3f8e | 929 | u16 type = le16_to_cpu(*((__le16 *)skb->data)); |
19c19d54 | 930 | |
9e7f3f8e | 931 | if (type & P54_HDR_FLAG_CONTROL) |
19c19d54 CL |
932 | return p54_rx_control(dev, skb); |
933 | else | |
934 | return p54_rx_data(dev, skb); | |
eff1a59c MW |
935 | } |
936 | EXPORT_SYMBOL_GPL(p54_rx); | |
937 | ||
938 | /* | |
939 | * So, the firmware is somewhat stupid and doesn't know what places in its | |
940 | * memory incoming data should go to. By poking around in the firmware, we | |
941 | * can find some unused memory to upload our packets to. However, data that we | |
942 | * want the card to TX needs to stay intact until the card has told us that | |
943 | * it is done with it. This function finds empty places we can upload to and | |
944 | * marks allocated areas as reserved if necessary. p54_rx_frame_sent frees | |
945 | * allocated areas. | |
946 | */ | |
b92f30d6 | 947 | static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, |
27df605e | 948 | struct p54_hdr *data, u32 len) |
eff1a59c MW |
949 | { |
950 | struct p54_common *priv = dev->priv; | |
951 | struct sk_buff *entry = priv->tx_queue.next; | |
952 | struct sk_buff *target_skb = NULL; | |
b92f30d6 CL |
953 | struct ieee80211_tx_info *info; |
954 | struct memrecord *range; | |
eff1a59c MW |
955 | u32 last_addr = priv->rx_start; |
956 | u32 largest_hole = 0; | |
957 | u32 target_addr = priv->rx_start; | |
958 | unsigned long flags; | |
959 | unsigned int left; | |
4e416a6f | 960 | len = (len + priv->headroom + priv->tailroom + 3) & ~0x3; |
eff1a59c | 961 | |
b92f30d6 CL |
962 | if (!skb) |
963 | return -EINVAL; | |
964 | ||
eff1a59c | 965 | spin_lock_irqsave(&priv->tx_queue.lock, flags); |
39ca5bb7 | 966 | |
eff1a59c | 967 | left = skb_queue_len(&priv->tx_queue); |
39ca5bb7 CL |
968 | if (unlikely(left >= 28)) { |
969 | /* | |
970 | * The tx_queue is nearly full! | |
971 | * We have throttle normal data traffic, because we must | |
972 | * have a few spare slots for control frames left. | |
973 | */ | |
974 | ieee80211_stop_queues(dev); | |
54fdb040 CL |
975 | queue_delayed_work(dev->workqueue, &priv->work, |
976 | msecs_to_jiffies(P54_TX_TIMEOUT)); | |
39ca5bb7 CL |
977 | |
978 | if (unlikely(left == 32)) { | |
979 | /* | |
980 | * The tx_queue is now really full. | |
981 | * | |
982 | * TODO: check if the device has crashed and reset it. | |
983 | */ | |
984 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
985 | return -ENOSPC; | |
986 | } | |
987 | } | |
988 | ||
eff1a59c MW |
989 | while (left--) { |
990 | u32 hole_size; | |
b92f30d6 CL |
991 | info = IEEE80211_SKB_CB(entry); |
992 | range = (void *)info->rate_driver_data; | |
eff1a59c MW |
993 | hole_size = range->start_addr - last_addr; |
994 | if (!target_skb && hole_size >= len) { | |
995 | target_skb = entry->prev; | |
996 | hole_size -= len; | |
997 | target_addr = last_addr; | |
998 | } | |
999 | largest_hole = max(largest_hole, hole_size); | |
1000 | last_addr = range->end_addr; | |
1001 | entry = entry->next; | |
1002 | } | |
1003 | if (!target_skb && priv->rx_end - last_addr >= len) { | |
1004 | target_skb = priv->tx_queue.prev; | |
1005 | largest_hole = max(largest_hole, priv->rx_end - last_addr - len); | |
1006 | if (!skb_queue_empty(&priv->tx_queue)) { | |
b92f30d6 CL |
1007 | info = IEEE80211_SKB_CB(target_skb); |
1008 | range = (void *)info->rate_driver_data; | |
eff1a59c MW |
1009 | target_addr = range->end_addr; |
1010 | } | |
1011 | } else | |
1012 | largest_hole = max(largest_hole, priv->rx_end - last_addr); | |
1013 | ||
b92f30d6 CL |
1014 | if (!target_skb) { |
1015 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); | |
1016 | ieee80211_stop_queues(dev); | |
39ca5bb7 | 1017 | return -ENOSPC; |
eff1a59c | 1018 | } |
b92f30d6 CL |
1019 | |
1020 | info = IEEE80211_SKB_CB(skb); | |
1021 | range = (void *)info->rate_driver_data; | |
1022 | range->start_addr = target_addr; | |
1023 | range->end_addr = target_addr + len; | |
1024 | __skb_queue_after(&priv->tx_queue, target_skb, skb); | |
eff1a59c MW |
1025 | spin_unlock_irqrestore(&priv->tx_queue.lock, flags); |
1026 | ||
27df605e | 1027 | if (largest_hole < priv->headroom + sizeof(struct p54_hdr) + |
b92f30d6 CL |
1028 | 48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom) |
1029 | ieee80211_stop_queues(dev); | |
1030 | ||
4e416a6f | 1031 | data->req_id = cpu_to_le32(target_addr + priv->headroom); |
b92f30d6 CL |
1032 | return 0; |
1033 | } | |
1034 | ||
1035 | static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev, | |
1036 | u16 hdr_flags, u16 len, u16 type, gfp_t memflags) | |
1037 | { | |
1038 | struct p54_common *priv = dev->priv; | |
27df605e | 1039 | struct p54_hdr *hdr; |
b92f30d6 CL |
1040 | struct sk_buff *skb; |
1041 | ||
1042 | skb = __dev_alloc_skb(len + priv->tx_hdr_len, memflags); | |
1043 | if (!skb) | |
1044 | return NULL; | |
1045 | skb_reserve(skb, priv->tx_hdr_len); | |
1046 | ||
27df605e JL |
1047 | hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr)); |
1048 | hdr->flags = cpu_to_le16(hdr_flags); | |
b92f30d6 CL |
1049 | hdr->len = cpu_to_le16(len - sizeof(*hdr)); |
1050 | hdr->type = cpu_to_le16(type); | |
27df605e | 1051 | hdr->tries = hdr->rts_tries = 0; |
b92f30d6 CL |
1052 | |
1053 | if (unlikely(p54_assign_address(dev, skb, hdr, len))) { | |
1054 | kfree_skb(skb); | |
1055 | return NULL; | |
1056 | } | |
1057 | return skb; | |
eff1a59c MW |
1058 | } |
1059 | ||
7cb77072 CL |
1060 | int p54_read_eeprom(struct ieee80211_hw *dev) |
1061 | { | |
1062 | struct p54_common *priv = dev->priv; | |
27df605e | 1063 | struct p54_hdr *hdr = NULL; |
7cb77072 | 1064 | struct p54_eeprom_lm86 *eeprom_hdr; |
b92f30d6 | 1065 | struct sk_buff *skb; |
64c354dd | 1066 | size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize; |
7cb77072 CL |
1067 | int ret = -ENOMEM; |
1068 | void *eeprom = NULL; | |
1069 | ||
64c354dd CL |
1070 | maxblocksize = EEPROM_READBACK_LEN; |
1071 | if (priv->fw_var >= 0x509) | |
1072 | maxblocksize -= 0xc; | |
1073 | else | |
1074 | maxblocksize -= 0x4; | |
1075 | ||
1076 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*hdr) + | |
1077 | sizeof(*eeprom_hdr) + maxblocksize, | |
b92f30d6 CL |
1078 | P54_CONTROL_TYPE_EEPROM_READBACK, GFP_KERNEL); |
1079 | if (!skb) | |
7cb77072 | 1080 | goto free; |
7cb77072 CL |
1081 | priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL); |
1082 | if (!priv->eeprom) | |
1083 | goto free; | |
7cb77072 CL |
1084 | eeprom = kzalloc(eeprom_size, GFP_KERNEL); |
1085 | if (!eeprom) | |
1086 | goto free; | |
1087 | ||
b92f30d6 | 1088 | eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb, |
64c354dd | 1089 | sizeof(*eeprom_hdr) + maxblocksize); |
7cb77072 CL |
1090 | |
1091 | while (eeprom_size) { | |
64c354dd CL |
1092 | blocksize = min(eeprom_size, maxblocksize); |
1093 | if (priv->fw_var < 0x509) { | |
1094 | eeprom_hdr->v1.offset = cpu_to_le16(offset); | |
1095 | eeprom_hdr->v1.len = cpu_to_le16(blocksize); | |
1096 | } else { | |
1097 | eeprom_hdr->v2.offset = cpu_to_le32(offset); | |
1098 | eeprom_hdr->v2.len = cpu_to_le16(blocksize); | |
1099 | eeprom_hdr->v2.magic2 = 0xf; | |
1100 | memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4); | |
1101 | } | |
0a5ec96a | 1102 | priv->tx(dev, skb); |
7cb77072 CL |
1103 | |
1104 | if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) { | |
1105 | printk(KERN_ERR "%s: device does not respond!\n", | |
1106 | wiphy_name(dev->wiphy)); | |
1107 | ret = -EBUSY; | |
1108 | goto free; | |
1109 | } | |
1110 | ||
1111 | memcpy(eeprom + offset, priv->eeprom, blocksize); | |
1112 | offset += blocksize; | |
1113 | eeprom_size -= blocksize; | |
1114 | } | |
1115 | ||
1116 | ret = p54_parse_eeprom(dev, eeprom, offset); | |
1117 | free: | |
1118 | kfree(priv->eeprom); | |
1119 | priv->eeprom = NULL; | |
b92f30d6 | 1120 | p54_free_skb(dev, skb); |
7cb77072 CL |
1121 | kfree(eeprom); |
1122 | ||
1123 | return ret; | |
1124 | } | |
1125 | EXPORT_SYMBOL_GPL(p54_read_eeprom); | |
1126 | ||
e5ea92a7 CL |
1127 | static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta, |
1128 | bool set) | |
1129 | { | |
1130 | struct p54_common *priv = dev->priv; | |
1131 | struct sk_buff *skb; | |
1132 | struct p54_tim *tim; | |
1133 | ||
1134 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, | |
1135 | sizeof(struct p54_hdr) + sizeof(*tim), | |
1136 | P54_CONTROL_TYPE_TIM, GFP_KERNEL); | |
1137 | if (!skb) | |
1138 | return -ENOMEM; | |
1139 | ||
1140 | tim = (struct p54_tim *) skb_put(skb, sizeof(*tim)); | |
1141 | tim->count = 1; | |
1142 | tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid); | |
0a5ec96a | 1143 | priv->tx(dev, skb); |
e5ea92a7 CL |
1144 | return 0; |
1145 | } | |
1146 | ||
1147 | static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr) | |
1148 | { | |
1149 | struct p54_common *priv = dev->priv; | |
1150 | struct sk_buff *skb; | |
1151 | struct p54_sta_unlock *sta; | |
1152 | ||
1153 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, | |
1154 | sizeof(struct p54_hdr) + sizeof(*sta), | |
1155 | P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC); | |
1156 | if (!skb) | |
1157 | return -ENOMEM; | |
1158 | ||
1159 | sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta)); | |
1160 | memcpy(sta->addr, addr, ETH_ALEN); | |
0a5ec96a | 1161 | priv->tx(dev, skb); |
e5ea92a7 CL |
1162 | return 0; |
1163 | } | |
1164 | ||
c772a08b CL |
1165 | static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif, |
1166 | enum sta_notify_cmd notify_cmd, | |
1167 | struct ieee80211_sta *sta) | |
1168 | { | |
1169 | switch (notify_cmd) { | |
1170 | case STA_NOTIFY_ADD: | |
1171 | case STA_NOTIFY_REMOVE: | |
1172 | /* | |
1173 | * Notify the firmware that we don't want or we don't | |
1174 | * need to buffer frames for this station anymore. | |
1175 | */ | |
1176 | ||
89fad578 CL |
1177 | p54_sta_unlock(dev, sta->addr); |
1178 | break; | |
1179 | case STA_NOTIFY_AWAKE: | |
1180 | /* update the firmware's filter table */ | |
c772a08b CL |
1181 | p54_sta_unlock(dev, sta->addr); |
1182 | break; | |
1183 | default: | |
1184 | break; | |
1185 | } | |
1186 | } | |
1187 | ||
e5ea92a7 CL |
1188 | static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry) |
1189 | { | |
1190 | struct p54_common *priv = dev->priv; | |
1191 | struct sk_buff *skb; | |
1192 | struct p54_hdr *hdr; | |
1193 | struct p54_txcancel *cancel; | |
1194 | ||
1195 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, | |
1196 | sizeof(struct p54_hdr) + sizeof(*cancel), | |
1197 | P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC); | |
1198 | if (!skb) | |
1199 | return -ENOMEM; | |
1200 | ||
1201 | hdr = (void *)entry->data; | |
1202 | cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel)); | |
1203 | cancel->req_id = hdr->req_id; | |
0a5ec96a | 1204 | priv->tx(dev, skb); |
e5ea92a7 CL |
1205 | return 0; |
1206 | } | |
1207 | ||
94585b09 CL |
1208 | static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb, |
1209 | struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len, | |
1210 | u16 *flags, u16 *aid) | |
1211 | { | |
1212 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
1213 | struct p54_common *priv = dev->priv; | |
1214 | int ret = 0; | |
1215 | ||
1216 | if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) { | |
1217 | if (ieee80211_is_beacon(hdr->frame_control)) { | |
1218 | *aid = 0; | |
1219 | *queue = 0; | |
1220 | *extra_len = IEEE80211_MAX_TIM_LEN; | |
1221 | *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP; | |
1222 | return 0; | |
1223 | } else if (ieee80211_is_probe_resp(hdr->frame_control)) { | |
1224 | *aid = 0; | |
1225 | *queue = 2; | |
1226 | *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP | | |
1227 | P54_HDR_FLAG_DATA_OUT_NOCANCEL; | |
1228 | return 0; | |
1229 | } else { | |
1230 | *queue = 2; | |
1231 | ret = 0; | |
1232 | } | |
1233 | } else { | |
1234 | *queue += 4; | |
1235 | ret = 1; | |
1236 | } | |
1237 | ||
1238 | switch (priv->mode) { | |
1239 | case NL80211_IFTYPE_STATION: | |
1240 | *aid = 1; | |
1241 | break; | |
1242 | case NL80211_IFTYPE_AP: | |
1243 | case NL80211_IFTYPE_ADHOC: | |
d131bb59 | 1244 | case NL80211_IFTYPE_MESH_POINT: |
94585b09 CL |
1245 | if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { |
1246 | *aid = 0; | |
1247 | *queue = 3; | |
1248 | return 0; | |
1249 | } | |
1250 | if (info->control.sta) | |
1251 | *aid = info->control.sta->aid; | |
1252 | else | |
c772a08b | 1253 | *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL; |
94585b09 CL |
1254 | } |
1255 | return ret; | |
1256 | } | |
1257 | ||
25900ef0 CL |
1258 | static u8 p54_convert_algo(enum ieee80211_key_alg alg) |
1259 | { | |
1260 | switch (alg) { | |
1261 | case ALG_WEP: | |
1262 | return P54_CRYPTO_WEP; | |
1263 | case ALG_TKIP: | |
1264 | return P54_CRYPTO_TKIPMICHAEL; | |
1265 | case ALG_CCMP: | |
1266 | return P54_CRYPTO_AESCCMP; | |
1267 | default: | |
1268 | return 0; | |
1269 | } | |
1270 | } | |
1271 | ||
e039fa4a | 1272 | static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) |
eff1a59c | 1273 | { |
e039fa4a | 1274 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
9e7f3f8e | 1275 | struct ieee80211_tx_queue_stats *current_queue = NULL; |
eff1a59c | 1276 | struct p54_common *priv = dev->priv; |
27df605e JL |
1277 | struct p54_hdr *hdr; |
1278 | struct p54_tx_data *txhdr; | |
db4186cf | 1279 | size_t padding, len, tim_len = 0; |
c772a08b | 1280 | int i, j, ridx, ret; |
94585b09 | 1281 | u16 hdr_flags = 0, aid = 0; |
25900ef0 | 1282 | u8 rate, queue, crypt_offset = 0; |
aaa15535 | 1283 | u8 cts_rate = 0x20; |
e6a9854b | 1284 | u8 rc_flags; |
c12abae3 JB |
1285 | u8 calculated_tries[4]; |
1286 | u8 nrates = 0, nremaining = 8; | |
eff1a59c | 1287 | |
94585b09 CL |
1288 | queue = skb_get_queue_mapping(skb); |
1289 | ||
c772a08b CL |
1290 | ret = p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid); |
1291 | current_queue = &priv->tx_stats[queue]; | |
1292 | if (unlikely((current_queue->len > current_queue->limit) && ret)) | |
1293 | return NETDEV_TX_BUSY; | |
1294 | current_queue->len++; | |
1295 | current_queue->count++; | |
1296 | if ((current_queue->len == current_queue->limit) && ret) | |
1297 | ieee80211_stop_queue(dev, skb_get_queue_mapping(skb)); | |
eff1a59c MW |
1298 | |
1299 | padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3; | |
1300 | len = skb->len; | |
1301 | ||
25900ef0 CL |
1302 | if (info->control.hw_key) { |
1303 | crypt_offset = ieee80211_get_hdrlen_from_skb(skb); | |
1304 | if (info->control.hw_key->alg == ALG_TKIP) { | |
1305 | u8 *iv = (u8 *)(skb->data + crypt_offset); | |
1306 | /* | |
1307 | * The firmware excepts that the IV has to have | |
1308 | * this special format | |
1309 | */ | |
1310 | iv[1] = iv[0]; | |
1311 | iv[0] = iv[2]; | |
1312 | iv[2] = 0; | |
1313 | } | |
1314 | } | |
1315 | ||
27df605e JL |
1316 | txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding); |
1317 | hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr)); | |
eff1a59c MW |
1318 | |
1319 | if (padding) | |
9e7f3f8e | 1320 | hdr_flags |= P54_HDR_FLAG_DATA_ALIGN; |
94585b09 | 1321 | hdr->type = cpu_to_le16(aid); |
27df605e | 1322 | hdr->rts_tries = info->control.rates[0].count; |
c12abae3 JB |
1323 | |
1324 | /* | |
1325 | * we register the rates in perfect order, and | |
1326 | * RTS/CTS won't happen on 5 GHz | |
1327 | */ | |
1328 | cts_rate = info->control.rts_cts_rate_idx; | |
1329 | ||
1330 | memset(&txhdr->rateset, 0, sizeof(txhdr->rateset)); | |
1331 | ||
1332 | /* see how many rates got used */ | |
1333 | for (i = 0; i < 4; i++) { | |
1334 | if (info->control.rates[i].idx < 0) | |
1335 | break; | |
1336 | nrates++; | |
1337 | } | |
1338 | ||
1339 | /* limit tries to 8/nrates per rate */ | |
1340 | for (i = 0; i < nrates; i++) { | |
1341 | /* | |
1342 | * The magic expression here is equivalent to 8/nrates for | |
1343 | * all values that matter, but avoids division and jumps. | |
1344 | * Note that nrates can only take the values 1 through 4. | |
1345 | */ | |
1346 | calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1, | |
1347 | info->control.rates[i].count); | |
1348 | nremaining -= calculated_tries[i]; | |
aaa15535 | 1349 | } |
c12abae3 JB |
1350 | |
1351 | /* if there are tries left, distribute from back to front */ | |
1352 | for (i = nrates - 1; nremaining > 0 && i >= 0; i--) { | |
1353 | int tmp = info->control.rates[i].count - calculated_tries[i]; | |
1354 | ||
1355 | if (tmp <= 0) | |
1356 | continue; | |
1357 | /* RC requested more tries at this rate */ | |
1358 | ||
1359 | tmp = min_t(int, tmp, nremaining); | |
1360 | calculated_tries[i] += tmp; | |
1361 | nremaining -= tmp; | |
aaa15535 | 1362 | } |
c12abae3 JB |
1363 | |
1364 | ridx = 0; | |
1365 | for (i = 0; i < nrates && ridx < 8; i++) { | |
1366 | /* we register the rates in perfect order */ | |
1367 | rate = info->control.rates[i].idx; | |
1368 | if (info->band == IEEE80211_BAND_5GHZ) | |
1369 | rate += 4; | |
1370 | ||
1371 | /* store the count we actually calculated for TX status */ | |
1372 | info->control.rates[i].count = calculated_tries[i]; | |
1373 | ||
1374 | rc_flags = info->control.rates[i].flags; | |
1375 | if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) { | |
1376 | rate |= 0x10; | |
1377 | cts_rate |= 0x10; | |
1378 | } | |
1379 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) | |
1380 | rate |= 0x40; | |
1381 | else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) | |
1382 | rate |= 0x20; | |
1383 | for (j = 0; j < calculated_tries[i] && ridx < 8; j++) { | |
1384 | txhdr->rateset[ridx] = rate; | |
1385 | ridx++; | |
1386 | } | |
1387 | } | |
9e7f3f8e CL |
1388 | |
1389 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) | |
1390 | hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR; | |
1391 | ||
1392 | /* TODO: enable bursting */ | |
1393 | hdr->flags = cpu_to_le16(hdr_flags); | |
27df605e | 1394 | hdr->tries = ridx; |
27df605e | 1395 | txhdr->rts_rate_idx = 0; |
25900ef0 CL |
1396 | if (info->control.hw_key) { |
1397 | crypt_offset += info->control.hw_key->iv_len; | |
1398 | txhdr->key_type = p54_convert_algo(info->control.hw_key->alg); | |
1399 | txhdr->key_len = min((u8)16, info->control.hw_key->keylen); | |
1400 | memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len); | |
1401 | if (info->control.hw_key->alg == ALG_TKIP) { | |
1402 | if (unlikely(skb_tailroom(skb) < 12)) | |
1403 | goto err; | |
1404 | /* reserve space for the MIC key */ | |
1405 | len += 8; | |
1406 | memcpy(skb_put(skb, 8), &(info->control.hw_key->key | |
1407 | [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]), 8); | |
1408 | } | |
1409 | /* reserve some space for ICV */ | |
1410 | len += info->control.hw_key->icv_len; | |
1411 | } else { | |
1412 | txhdr->key_type = 0; | |
1413 | txhdr->key_len = 0; | |
1414 | } | |
1415 | txhdr->crypt_offset = crypt_offset; | |
94585b09 | 1416 | txhdr->hw_queue = queue; |
ffed7858 CL |
1417 | if (current_queue) |
1418 | txhdr->backlog = current_queue->len; | |
1419 | else | |
1420 | txhdr->backlog = 0; | |
27df605e | 1421 | memset(txhdr->durations, 0, sizeof(txhdr->durations)); |
aaa15535 | 1422 | txhdr->tx_antenna = (info->antenna_sel_tx == 0) ? |
e039fa4a | 1423 | 2 : info->antenna_sel_tx - 1; |
09adf284 | 1424 | txhdr->output_power = priv->output_power; |
27df605e | 1425 | txhdr->cts_rate = cts_rate; |
eff1a59c MW |
1426 | if (padding) |
1427 | txhdr->align[0] = padding; | |
1428 | ||
25900ef0 | 1429 | hdr->len = cpu_to_le16(len); |
e039fa4a | 1430 | /* modifies skb->cb and with it info, so must be last! */ |
25900ef0 CL |
1431 | if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len))) |
1432 | goto err; | |
0a5ec96a | 1433 | priv->tx(dev, skb); |
54fdb040 CL |
1434 | |
1435 | queue_delayed_work(dev->workqueue, &priv->work, | |
1436 | msecs_to_jiffies(P54_TX_FRAME_LIFETIME)); | |
1437 | ||
eff1a59c | 1438 | return 0; |
25900ef0 CL |
1439 | |
1440 | err: | |
1441 | skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding); | |
1442 | if (current_queue) { | |
1443 | current_queue->len--; | |
1444 | current_queue->count--; | |
1445 | } | |
1446 | return NETDEV_TX_BUSY; | |
eff1a59c MW |
1447 | } |
1448 | ||
b2023ddc | 1449 | static int p54_setup_mac(struct ieee80211_hw *dev) |
eff1a59c MW |
1450 | { |
1451 | struct p54_common *priv = dev->priv; | |
b92f30d6 | 1452 | struct sk_buff *skb; |
5e73444e | 1453 | struct p54_setup_mac *setup; |
b2023ddc | 1454 | u16 mode; |
eff1a59c | 1455 | |
27df605e JL |
1456 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup) + |
1457 | sizeof(struct p54_hdr), P54_CONTROL_TYPE_SETUP, | |
b92f30d6 CL |
1458 | GFP_ATOMIC); |
1459 | if (!skb) | |
1460 | return -ENOMEM; | |
eff1a59c | 1461 | |
5e73444e | 1462 | setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup)); |
b2023ddc CL |
1463 | if (dev->conf.radio_enabled) { |
1464 | switch (priv->mode) { | |
1465 | case NL80211_IFTYPE_STATION: | |
1466 | mode = P54_FILTER_TYPE_STATION; | |
1467 | break; | |
1468 | case NL80211_IFTYPE_AP: | |
1469 | mode = P54_FILTER_TYPE_AP; | |
1470 | break; | |
1471 | case NL80211_IFTYPE_ADHOC: | |
1472 | case NL80211_IFTYPE_MESH_POINT: | |
1473 | mode = P54_FILTER_TYPE_IBSS; | |
1474 | break; | |
1475 | default: | |
1476 | mode = P54_FILTER_TYPE_NONE; | |
1477 | break; | |
1478 | } | |
1479 | if (priv->filter_flags & FIF_PROMISC_IN_BSS) | |
1480 | mode |= P54_FILTER_TYPE_TRANSPARENT; | |
1481 | } else | |
1482 | mode = P54_FILTER_TYPE_RX_DISABLED; | |
1483 | ||
5e73444e CL |
1484 | setup->mac_mode = cpu_to_le16(mode); |
1485 | memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN); | |
b2023ddc CL |
1486 | memcpy(setup->bssid, priv->bssid, ETH_ALEN); |
1487 | setup->rx_antenna = 2; /* automatic */ | |
9483407d | 1488 | setup->rx_align = 0; |
19c19d54 | 1489 | if (priv->fw_var < 0x500) { |
ced09574 | 1490 | setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); |
9483407d | 1491 | memset(setup->v1.rts_rates, 0, 8); |
5e73444e CL |
1492 | setup->v1.rx_addr = cpu_to_le32(priv->rx_end); |
1493 | setup->v1.max_rx = cpu_to_le16(priv->rx_mtu); | |
1494 | setup->v1.rxhw = cpu_to_le16(priv->rxhw); | |
ced09574 | 1495 | setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer); |
5e73444e | 1496 | setup->v1.unalloc0 = cpu_to_le16(0); |
19c19d54 | 1497 | } else { |
5e73444e CL |
1498 | setup->v2.rx_addr = cpu_to_le32(priv->rx_end); |
1499 | setup->v2.max_rx = cpu_to_le16(priv->rx_mtu); | |
1500 | setup->v2.rxhw = cpu_to_le16(priv->rxhw); | |
ced09574 | 1501 | setup->v2.timer = cpu_to_le16(priv->wakeup_timer); |
5e73444e | 1502 | setup->v2.truncate = cpu_to_le16(48896); |
ced09574 | 1503 | setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); |
5e73444e CL |
1504 | setup->v2.sbss_offset = 0; |
1505 | setup->v2.mcast_window = 0; | |
1506 | setup->v2.rx_rssi_threshold = 0; | |
1507 | setup->v2.rx_ed_threshold = 0; | |
1508 | setup->v2.ref_clock = cpu_to_le32(644245094); | |
1509 | setup->v2.lpf_bandwidth = cpu_to_le16(65535); | |
1510 | setup->v2.osc_start_delay = cpu_to_le16(65535); | |
19c19d54 | 1511 | } |
0a5ec96a | 1512 | priv->tx(dev, skb); |
eff1a59c MW |
1513 | return 0; |
1514 | } | |
1515 | ||
69ba3e5d | 1516 | static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell) |
eff1a59c MW |
1517 | { |
1518 | struct p54_common *priv = dev->priv; | |
b92f30d6 | 1519 | struct sk_buff *skb; |
27df605e | 1520 | struct p54_scan *chan; |
eff1a59c | 1521 | unsigned int i; |
eff1a59c | 1522 | void *entry; |
69ba3e5d CL |
1523 | __le16 freq = cpu_to_le16(dev->conf.channel->center_freq); |
1524 | int band = dev->conf.channel->band; | |
eff1a59c | 1525 | |
27df605e JL |
1526 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*chan) + |
1527 | sizeof(struct p54_hdr), P54_CONTROL_TYPE_SCAN, | |
1528 | GFP_ATOMIC); | |
b92f30d6 | 1529 | if (!skb) |
eff1a59c MW |
1530 | return -ENOMEM; |
1531 | ||
27df605e | 1532 | chan = (struct p54_scan *) skb_put(skb, sizeof(*chan)); |
b92f30d6 | 1533 | memset(chan->padding1, 0, sizeof(chan->padding1)); |
b2023ddc CL |
1534 | chan->mode = cpu_to_le16(mode); |
1535 | chan->dwell = cpu_to_le16(dwell); | |
eff1a59c MW |
1536 | |
1537 | for (i = 0; i < priv->iq_autocal_len; i++) { | |
1538 | if (priv->iq_autocal[i].freq != freq) | |
1539 | continue; | |
1540 | ||
1541 | memcpy(&chan->iq_autocal, &priv->iq_autocal[i], | |
1542 | sizeof(*priv->iq_autocal)); | |
1543 | break; | |
1544 | } | |
1545 | if (i == priv->iq_autocal_len) | |
1546 | goto err; | |
1547 | ||
1548 | for (i = 0; i < priv->output_limit_len; i++) { | |
1549 | if (priv->output_limit[i].freq != freq) | |
1550 | continue; | |
1551 | ||
1552 | chan->val_barker = 0x38; | |
154e3af1 CL |
1553 | chan->val_bpsk = chan->dup_bpsk = |
1554 | priv->output_limit[i].val_bpsk; | |
1555 | chan->val_qpsk = chan->dup_qpsk = | |
1556 | priv->output_limit[i].val_qpsk; | |
1557 | chan->val_16qam = chan->dup_16qam = | |
1558 | priv->output_limit[i].val_16qam; | |
1559 | chan->val_64qam = chan->dup_64qam = | |
1560 | priv->output_limit[i].val_64qam; | |
eff1a59c MW |
1561 | break; |
1562 | } | |
1563 | if (i == priv->output_limit_len) | |
1564 | goto err; | |
1565 | ||
eff1a59c MW |
1566 | entry = priv->curve_data->data; |
1567 | for (i = 0; i < priv->curve_data->channels; i++) { | |
1568 | if (*((__le16 *)entry) != freq) { | |
1569 | entry += sizeof(__le16); | |
154e3af1 CL |
1570 | entry += sizeof(struct p54_pa_curve_data_sample) * |
1571 | priv->curve_data->points_per_channel; | |
eff1a59c MW |
1572 | continue; |
1573 | } | |
1574 | ||
1575 | entry += sizeof(__le16); | |
9483407d C |
1576 | chan->pa_points_per_curve = 8; |
1577 | memset(chan->curve_data, 0, sizeof(*chan->curve_data)); | |
1578 | memcpy(chan->curve_data, entry, | |
1579 | sizeof(struct p54_pa_curve_data_sample) * | |
1580 | min((u8)8, priv->curve_data->points_per_channel)); | |
eff1a59c MW |
1581 | break; |
1582 | } | |
1583 | ||
19c19d54 | 1584 | if (priv->fw_var < 0x500) { |
69ba3e5d CL |
1585 | chan->v1_rssi.mul = cpu_to_le16(priv->rssical_db[band].mul); |
1586 | chan->v1_rssi.add = cpu_to_le16(priv->rssical_db[band].add); | |
19c19d54 | 1587 | } else { |
69ba3e5d CL |
1588 | chan->v2.rssi.mul = cpu_to_le16(priv->rssical_db[band].mul); |
1589 | chan->v2.rssi.add = cpu_to_le16(priv->rssical_db[band].add); | |
ced09574 | 1590 | chan->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); |
27df605e | 1591 | memset(chan->v2.rts_rates, 0, 8); |
19c19d54 | 1592 | } |
0a5ec96a | 1593 | priv->tx(dev, skb); |
eff1a59c MW |
1594 | return 0; |
1595 | ||
1596 | err: | |
1597 | printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy)); | |
b92f30d6 | 1598 | kfree_skb(skb); |
eff1a59c MW |
1599 | return -EINVAL; |
1600 | } | |
1601 | ||
1602 | static int p54_set_leds(struct ieee80211_hw *dev, int mode, int link, int act) | |
1603 | { | |
1604 | struct p54_common *priv = dev->priv; | |
b92f30d6 | 1605 | struct sk_buff *skb; |
27df605e | 1606 | struct p54_led *led; |
eff1a59c | 1607 | |
27df605e JL |
1608 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led) + |
1609 | sizeof(struct p54_hdr), P54_CONTROL_TYPE_LED, | |
1610 | GFP_ATOMIC); | |
b92f30d6 | 1611 | if (!skb) |
eff1a59c MW |
1612 | return -ENOMEM; |
1613 | ||
27df605e | 1614 | led = (struct p54_led *)skb_put(skb, sizeof(*led)); |
eff1a59c MW |
1615 | led->mode = cpu_to_le16(mode); |
1616 | led->led_permanent = cpu_to_le16(link); | |
1617 | led->led_temporary = cpu_to_le16(act); | |
1618 | led->duration = cpu_to_le16(1000); | |
0a5ec96a | 1619 | priv->tx(dev, skb); |
eff1a59c MW |
1620 | return 0; |
1621 | } | |
1622 | ||
3330d7be | 1623 | #define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \ |
eff1a59c MW |
1624 | do { \ |
1625 | queue.aifs = cpu_to_le16(ai_fs); \ | |
1626 | queue.cwmin = cpu_to_le16(cw_min); \ | |
1627 | queue.cwmax = cpu_to_le16(cw_max); \ | |
3330d7be | 1628 | queue.txop = cpu_to_le16(_txop); \ |
eff1a59c MW |
1629 | } while(0) |
1630 | ||
0fdd7c5d | 1631 | static int p54_set_edcf(struct ieee80211_hw *dev) |
eff1a59c MW |
1632 | { |
1633 | struct p54_common *priv = dev->priv; | |
b92f30d6 | 1634 | struct sk_buff *skb; |
0fdd7c5d | 1635 | struct p54_edcf *edcf; |
eff1a59c | 1636 | |
27df605e JL |
1637 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf) + |
1638 | sizeof(struct p54_hdr), P54_CONTROL_TYPE_DCFINIT, | |
1639 | GFP_ATOMIC); | |
b92f30d6 | 1640 | if (!skb) |
0fdd7c5d CL |
1641 | return -ENOMEM; |
1642 | ||
b92f30d6 | 1643 | edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf)); |
40333e4f | 1644 | if (priv->use_short_slot) { |
0fdd7c5d CL |
1645 | edcf->slottime = 9; |
1646 | edcf->sifs = 0x10; | |
1647 | edcf->eofpad = 0x00; | |
eff1a59c | 1648 | } else { |
0fdd7c5d CL |
1649 | edcf->slottime = 20; |
1650 | edcf->sifs = 0x0a; | |
1651 | edcf->eofpad = 0x06; | |
eff1a59c | 1652 | } |
eff1a59c | 1653 | /* (see prism54/isl_oid.h for further details) */ |
0fdd7c5d CL |
1654 | edcf->frameburst = cpu_to_le16(0); |
1655 | edcf->round_trip_delay = cpu_to_le16(0); | |
9483407d | 1656 | edcf->flags = 0; |
0fdd7c5d CL |
1657 | memset(edcf->mapping, 0, sizeof(edcf->mapping)); |
1658 | memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue)); | |
0a5ec96a | 1659 | priv->tx(dev, skb); |
0fdd7c5d | 1660 | return 0; |
eff1a59c MW |
1661 | } |
1662 | ||
e5ea92a7 CL |
1663 | static int p54_beacon_tim(struct sk_buff *skb) |
1664 | { | |
1665 | /* | |
1666 | * the good excuse for this mess is ... the firmware. | |
1667 | * The dummy TIM MUST be at the end of the beacon frame, | |
1668 | * because it'll be overwritten! | |
1669 | */ | |
1670 | ||
1671 | struct ieee80211_mgmt *mgmt = (void *)skb->data; | |
1672 | u8 *pos, *end; | |
1673 | ||
02e37ba1 | 1674 | if (skb->len <= sizeof(mgmt)) |
e5ea92a7 | 1675 | return -EINVAL; |
e5ea92a7 CL |
1676 | |
1677 | pos = (u8 *)mgmt->u.beacon.variable; | |
1678 | end = skb->data + skb->len; | |
1679 | while (pos < end) { | |
02e37ba1 | 1680 | if (pos + 2 + pos[1] > end) |
e5ea92a7 | 1681 | return -EINVAL; |
e5ea92a7 CL |
1682 | |
1683 | if (pos[0] == WLAN_EID_TIM) { | |
1684 | u8 dtim_len = pos[1]; | |
1685 | u8 dtim_period = pos[3]; | |
1686 | u8 *next = pos + 2 + dtim_len; | |
1687 | ||
02e37ba1 | 1688 | if (dtim_len < 3) |
e5ea92a7 | 1689 | return -EINVAL; |
02e37ba1 | 1690 | |
e5ea92a7 CL |
1691 | memmove(pos, next, end - next); |
1692 | ||
1693 | if (dtim_len > 3) | |
1694 | skb_trim(skb, skb->len - (dtim_len - 3)); | |
1695 | ||
1696 | pos = end - (dtim_len + 2); | |
1697 | ||
1698 | /* add the dummy at the end */ | |
1699 | pos[0] = WLAN_EID_TIM; | |
1700 | pos[1] = 3; | |
1701 | pos[2] = 0; | |
1702 | pos[3] = dtim_period; | |
1703 | pos[4] = 0; | |
1704 | return 0; | |
1705 | } | |
1706 | pos += 2 + pos[1]; | |
1707 | } | |
1708 | return 0; | |
1709 | } | |
1710 | ||
1711 | static int p54_beacon_update(struct ieee80211_hw *dev, | |
1712 | struct ieee80211_vif *vif) | |
1713 | { | |
1714 | struct p54_common *priv = dev->priv; | |
1715 | struct sk_buff *beacon; | |
1716 | int ret; | |
1717 | ||
1718 | if (priv->cached_beacon) { | |
1719 | p54_tx_cancel(dev, priv->cached_beacon); | |
1720 | /* wait for the last beacon the be freed */ | |
1721 | msleep(10); | |
1722 | } | |
1723 | ||
1724 | beacon = ieee80211_beacon_get(dev, vif); | |
1725 | if (!beacon) | |
1726 | return -ENOMEM; | |
1727 | ret = p54_beacon_tim(beacon); | |
1728 | if (ret) | |
1729 | return ret; | |
1730 | ret = p54_tx(dev, beacon); | |
1731 | if (ret) | |
1732 | return ret; | |
1733 | priv->cached_beacon = beacon; | |
1734 | priv->tsf_high32 = 0; | |
1735 | priv->tsf_low32 = 0; | |
1736 | ||
1737 | return 0; | |
1738 | } | |
1739 | ||
0f1be978 CL |
1740 | static int p54_start(struct ieee80211_hw *dev) |
1741 | { | |
1742 | struct p54_common *priv = dev->priv; | |
1743 | int err; | |
cc6de669 | 1744 | |
9e7f3f8e | 1745 | mutex_lock(&priv->conf_mutex); |
4150c572 | 1746 | err = priv->open(dev); |
40db0b22 CL |
1747 | if (err) |
1748 | goto out; | |
0fdd7c5d CL |
1749 | P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47); |
1750 | P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94); | |
1751 | P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0); | |
1752 | P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0); | |
1753 | err = p54_set_edcf(dev); | |
40db0b22 CL |
1754 | if (err) |
1755 | goto out; | |
b2023ddc CL |
1756 | |
1757 | memset(priv->bssid, ~0, ETH_ALEN); | |
40db0b22 | 1758 | priv->mode = NL80211_IFTYPE_MONITOR; |
b2023ddc CL |
1759 | err = p54_setup_mac(dev); |
1760 | if (err) { | |
1761 | priv->mode = NL80211_IFTYPE_UNSPECIFIED; | |
1762 | goto out; | |
1763 | } | |
4150c572 | 1764 | |
54fdb040 CL |
1765 | queue_delayed_work(dev->workqueue, &priv->work, 0); |
1766 | ||
40db0b22 | 1767 | out: |
9e7f3f8e | 1768 | mutex_unlock(&priv->conf_mutex); |
4150c572 JB |
1769 | return err; |
1770 | } | |
1771 | ||
1772 | static void p54_stop(struct ieee80211_hw *dev) | |
1773 | { | |
1774 | struct p54_common *priv = dev->priv; | |
1775 | struct sk_buff *skb; | |
cc6de669 | 1776 | |
9e7f3f8e | 1777 | mutex_lock(&priv->conf_mutex); |
59651e89 | 1778 | priv->mode = NL80211_IFTYPE_UNSPECIFIED; |
54fdb040 | 1779 | cancel_delayed_work_sync(&priv->work); |
e5ea92a7 CL |
1780 | if (priv->cached_beacon) |
1781 | p54_tx_cancel(dev, priv->cached_beacon); | |
1782 | ||
59651e89 | 1783 | priv->stop(dev); |
e039fa4a | 1784 | while ((skb = skb_dequeue(&priv->tx_queue))) |
4150c572 | 1785 | kfree_skb(skb); |
e5ea92a7 | 1786 | priv->cached_beacon = NULL; |
a0db663f | 1787 | priv->tsf_high32 = priv->tsf_low32 = 0; |
9e7f3f8e | 1788 | mutex_unlock(&priv->conf_mutex); |
4150c572 JB |
1789 | } |
1790 | ||
eff1a59c MW |
1791 | static int p54_add_interface(struct ieee80211_hw *dev, |
1792 | struct ieee80211_if_init_conf *conf) | |
1793 | { | |
1794 | struct p54_common *priv = dev->priv; | |
eff1a59c | 1795 | |
9e7f3f8e CL |
1796 | mutex_lock(&priv->conf_mutex); |
1797 | if (priv->mode != NL80211_IFTYPE_MONITOR) { | |
1798 | mutex_unlock(&priv->conf_mutex); | |
4150c572 | 1799 | return -EOPNOTSUPP; |
9e7f3f8e | 1800 | } |
eff1a59c MW |
1801 | |
1802 | switch (conf->type) { | |
05c914fe | 1803 | case NL80211_IFTYPE_STATION: |
e5ea92a7 CL |
1804 | case NL80211_IFTYPE_ADHOC: |
1805 | case NL80211_IFTYPE_AP: | |
d131bb59 | 1806 | case NL80211_IFTYPE_MESH_POINT: |
eff1a59c MW |
1807 | priv->mode = conf->type; |
1808 | break; | |
1809 | default: | |
9e7f3f8e | 1810 | mutex_unlock(&priv->conf_mutex); |
eff1a59c MW |
1811 | return -EOPNOTSUPP; |
1812 | } | |
1813 | ||
4150c572 | 1814 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
b2023ddc | 1815 | p54_setup_mac(dev); |
eff1a59c | 1816 | p54_set_leds(dev, 1, 0, 0); |
9e7f3f8e | 1817 | mutex_unlock(&priv->conf_mutex); |
eff1a59c MW |
1818 | return 0; |
1819 | } | |
1820 | ||
1821 | static void p54_remove_interface(struct ieee80211_hw *dev, | |
1822 | struct ieee80211_if_init_conf *conf) | |
1823 | { | |
1824 | struct p54_common *priv = dev->priv; | |
9e7f3f8e CL |
1825 | |
1826 | mutex_lock(&priv->conf_mutex); | |
e5ea92a7 CL |
1827 | if (priv->cached_beacon) |
1828 | p54_tx_cancel(dev, priv->cached_beacon); | |
05c914fe | 1829 | priv->mode = NL80211_IFTYPE_MONITOR; |
4150c572 | 1830 | memset(priv->mac_addr, 0, ETH_ALEN); |
b2023ddc CL |
1831 | memset(priv->bssid, 0, ETH_ALEN); |
1832 | p54_setup_mac(dev); | |
9e7f3f8e | 1833 | mutex_unlock(&priv->conf_mutex); |
eff1a59c MW |
1834 | } |
1835 | ||
e8975581 | 1836 | static int p54_config(struct ieee80211_hw *dev, u32 changed) |
eff1a59c MW |
1837 | { |
1838 | int ret; | |
6041e2a0 | 1839 | struct p54_common *priv = dev->priv; |
e8975581 | 1840 | struct ieee80211_conf *conf = &dev->conf; |
eff1a59c | 1841 | |
6041e2a0 | 1842 | mutex_lock(&priv->conf_mutex); |
b2023ddc CL |
1843 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
1844 | priv->output_power = conf->power_level << 2; | |
1845 | if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) { | |
1846 | ret = p54_setup_mac(dev); | |
1847 | if (ret) | |
1848 | goto out; | |
1849 | } | |
1850 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
69ba3e5d | 1851 | ret = p54_scan(dev, P54_SCAN_EXIT, 0); |
b2023ddc CL |
1852 | if (ret) |
1853 | goto out; | |
1854 | } | |
1855 | ||
1856 | out: | |
6041e2a0 | 1857 | mutex_unlock(&priv->conf_mutex); |
eff1a59c MW |
1858 | return ret; |
1859 | } | |
1860 | ||
32bfd35d JB |
1861 | static int p54_config_interface(struct ieee80211_hw *dev, |
1862 | struct ieee80211_vif *vif, | |
eff1a59c MW |
1863 | struct ieee80211_if_conf *conf) |
1864 | { | |
1865 | struct p54_common *priv = dev->priv; | |
e5ea92a7 | 1866 | int ret = 0; |
eff1a59c | 1867 | |
6041e2a0 | 1868 | mutex_lock(&priv->conf_mutex); |
b2023ddc CL |
1869 | if (conf->changed & IEEE80211_IFCC_BSSID) { |
1870 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
1871 | ret = p54_setup_mac(dev); | |
e5ea92a7 CL |
1872 | if (ret) |
1873 | goto out; | |
b2023ddc CL |
1874 | } |
1875 | ||
1876 | if (conf->changed & IEEE80211_IFCC_BEACON) { | |
69ba3e5d | 1877 | ret = p54_scan(dev, P54_SCAN_EXIT, 0); |
e5ea92a7 CL |
1878 | if (ret) |
1879 | goto out; | |
b2023ddc | 1880 | ret = p54_setup_mac(dev); |
e5ea92a7 CL |
1881 | if (ret) |
1882 | goto out; | |
b2023ddc CL |
1883 | ret = p54_beacon_update(dev, vif); |
1884 | if (ret) | |
1885 | goto out; | |
1886 | ret = p54_set_edcf(dev); | |
e5ea92a7 CL |
1887 | if (ret) |
1888 | goto out; | |
e5ea92a7 | 1889 | } |
b2023ddc CL |
1890 | |
1891 | ret = p54_set_leds(dev, 1, !is_multicast_ether_addr(priv->bssid), 0); | |
1892 | ||
e5ea92a7 | 1893 | out: |
6041e2a0 | 1894 | mutex_unlock(&priv->conf_mutex); |
e5ea92a7 | 1895 | return ret; |
eff1a59c MW |
1896 | } |
1897 | ||
4150c572 JB |
1898 | static void p54_configure_filter(struct ieee80211_hw *dev, |
1899 | unsigned int changed_flags, | |
1900 | unsigned int *total_flags, | |
1901 | int mc_count, struct dev_mc_list *mclist) | |
1902 | { | |
1903 | struct p54_common *priv = dev->priv; | |
1904 | ||
b2023ddc CL |
1905 | *total_flags &= FIF_PROMISC_IN_BSS | |
1906 | (*total_flags & FIF_PROMISC_IN_BSS) ? | |
1907 | FIF_FCSFAIL : 0; | |
78d57eb2 CL |
1908 | |
1909 | priv->filter_flags = *total_flags; | |
4150c572 | 1910 | |
b2023ddc CL |
1911 | if (changed_flags & FIF_PROMISC_IN_BSS) |
1912 | p54_setup_mac(dev); | |
4150c572 JB |
1913 | } |
1914 | ||
e100bb64 | 1915 | static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue, |
eff1a59c MW |
1916 | const struct ieee80211_tx_queue_params *params) |
1917 | { | |
1918 | struct p54_common *priv = dev->priv; | |
9e7f3f8e | 1919 | int ret; |
eff1a59c | 1920 | |
9e7f3f8e | 1921 | mutex_lock(&priv->conf_mutex); |
3df5ee60 | 1922 | if ((params) && !(queue > 4)) { |
0fdd7c5d | 1923 | P54_SET_QUEUE(priv->qos_params[queue], params->aifs, |
3330d7be | 1924 | params->cw_min, params->cw_max, params->txop); |
b50563a6 | 1925 | ret = p54_set_edcf(dev); |
eff1a59c | 1926 | } else |
9e7f3f8e | 1927 | ret = -EINVAL; |
9e7f3f8e CL |
1928 | mutex_unlock(&priv->conf_mutex); |
1929 | return ret; | |
eff1a59c MW |
1930 | } |
1931 | ||
1b997534 CL |
1932 | static int p54_init_xbow_synth(struct ieee80211_hw *dev) |
1933 | { | |
1934 | struct p54_common *priv = dev->priv; | |
b92f30d6 | 1935 | struct sk_buff *skb; |
27df605e | 1936 | struct p54_xbow_synth *xbow; |
1b997534 | 1937 | |
27df605e JL |
1938 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow) + |
1939 | sizeof(struct p54_hdr), | |
1940 | P54_CONTROL_TYPE_XBOW_SYNTH_CFG, | |
b92f30d6 CL |
1941 | GFP_KERNEL); |
1942 | if (!skb) | |
1b997534 CL |
1943 | return -ENOMEM; |
1944 | ||
27df605e | 1945 | xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow)); |
1b997534 CL |
1946 | xbow->magic1 = cpu_to_le16(0x1); |
1947 | xbow->magic2 = cpu_to_le16(0x2); | |
1948 | xbow->freq = cpu_to_le16(5390); | |
b92f30d6 | 1949 | memset(xbow->padding, 0, sizeof(xbow->padding)); |
0a5ec96a | 1950 | priv->tx(dev, skb); |
1b997534 CL |
1951 | return 0; |
1952 | } | |
1953 | ||
54fdb040 | 1954 | static void p54_work(struct work_struct *work) |
cc6de669 | 1955 | { |
54fdb040 CL |
1956 | struct p54_common *priv = container_of(work, struct p54_common, |
1957 | work.work); | |
1958 | struct ieee80211_hw *dev = priv->hw; | |
1959 | struct sk_buff *skb; | |
1960 | ||
1961 | if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) | |
1962 | return ; | |
1963 | ||
1964 | /* | |
1965 | * TODO: walk through tx_queue and do the following tasks | |
1966 | * 1. initiate bursts. | |
1967 | * 2. cancel stuck frames / reset the device if necessary. | |
1968 | */ | |
cc6de669 | 1969 | |
54fdb040 CL |
1970 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(struct p54_hdr) + |
1971 | sizeof(struct p54_statistics), | |
1972 | P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL); | |
1973 | if (!skb) | |
1974 | return ; | |
cc6de669 | 1975 | |
0a5ec96a | 1976 | priv->tx(dev, skb); |
cc6de669 CL |
1977 | } |
1978 | ||
eff1a59c MW |
1979 | static int p54_get_stats(struct ieee80211_hw *dev, |
1980 | struct ieee80211_low_level_stats *stats) | |
1981 | { | |
cc6de669 CL |
1982 | struct p54_common *priv = dev->priv; |
1983 | ||
cc6de669 | 1984 | memcpy(stats, &priv->stats, sizeof(*stats)); |
eff1a59c MW |
1985 | return 0; |
1986 | } | |
1987 | ||
1988 | static int p54_get_tx_stats(struct ieee80211_hw *dev, | |
1989 | struct ieee80211_tx_queue_stats *stats) | |
1990 | { | |
1991 | struct p54_common *priv = dev->priv; | |
eff1a59c | 1992 | |
84df3ed3 | 1993 | memcpy(stats, &priv->tx_stats[4], sizeof(stats[0]) * dev->queues); |
eff1a59c MW |
1994 | |
1995 | return 0; | |
1996 | } | |
1997 | ||
40333e4f CL |
1998 | static void p54_bss_info_changed(struct ieee80211_hw *dev, |
1999 | struct ieee80211_vif *vif, | |
2000 | struct ieee80211_bss_conf *info, | |
2001 | u32 changed) | |
2002 | { | |
2003 | struct p54_common *priv = dev->priv; | |
2004 | ||
2005 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
2006 | priv->use_short_slot = info->use_short_slot; | |
0fdd7c5d | 2007 | p54_set_edcf(dev); |
40333e4f | 2008 | } |
ced09574 CL |
2009 | if (changed & BSS_CHANGED_BASIC_RATES) { |
2010 | if (dev->conf.channel->band == IEEE80211_BAND_5GHZ) | |
2011 | priv->basic_rate_mask = (info->basic_rates << 4); | |
2012 | else | |
2013 | priv->basic_rate_mask = info->basic_rates; | |
b2023ddc | 2014 | p54_setup_mac(dev); |
ced09574 | 2015 | if (priv->fw_var >= 0x500) |
69ba3e5d | 2016 | p54_scan(dev, P54_SCAN_EXIT, 0); |
ced09574 CL |
2017 | } |
2018 | if (changed & BSS_CHANGED_ASSOC) { | |
2019 | if (info->assoc) { | |
2020 | priv->aid = info->aid; | |
2021 | priv->wakeup_timer = info->beacon_int * | |
2022 | info->dtim_period * 5; | |
b2023ddc | 2023 | p54_setup_mac(dev); |
ced09574 CL |
2024 | } |
2025 | } | |
2026 | ||
40333e4f CL |
2027 | } |
2028 | ||
25900ef0 CL |
2029 | static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd, |
2030 | const u8 *local_address, const u8 *address, | |
2031 | struct ieee80211_key_conf *key) | |
2032 | { | |
2033 | struct p54_common *priv = dev->priv; | |
2034 | struct sk_buff *skb; | |
2035 | struct p54_keycache *rxkey; | |
2036 | u8 algo = 0; | |
2037 | ||
2038 | if (modparam_nohwcrypt) | |
2039 | return -EOPNOTSUPP; | |
2040 | ||
2041 | if (cmd == DISABLE_KEY) | |
2042 | algo = 0; | |
2043 | else { | |
2044 | switch (key->alg) { | |
2045 | case ALG_TKIP: | |
2046 | if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL | | |
2047 | BR_DESC_PRIV_CAP_TKIP))) | |
2048 | return -EOPNOTSUPP; | |
2049 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2050 | algo = P54_CRYPTO_TKIPMICHAEL; | |
2051 | break; | |
2052 | case ALG_WEP: | |
2053 | if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP)) | |
2054 | return -EOPNOTSUPP; | |
2055 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2056 | algo = P54_CRYPTO_WEP; | |
2057 | break; | |
2058 | case ALG_CCMP: | |
2059 | if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP)) | |
2060 | return -EOPNOTSUPP; | |
2061 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2062 | algo = P54_CRYPTO_AESCCMP; | |
2063 | break; | |
2064 | default: | |
2065 | return -EINVAL; | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | if (key->keyidx > priv->rx_keycache_size) { | |
2070 | /* | |
2071 | * The device supports the choosen algorithm, but the firmware | |
2072 | * does not provide enough key slots to store all of them. | |
2073 | * So, incoming frames have to be decoded by the mac80211 stack, | |
2074 | * but we can still offload encryption for outgoing frames. | |
2075 | */ | |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | ||
2080 | mutex_lock(&priv->conf_mutex); | |
2081 | skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey) + | |
2082 | sizeof(struct p54_hdr), P54_CONTROL_TYPE_RX_KEYCACHE, | |
2083 | GFP_ATOMIC); | |
2084 | if (!skb) { | |
2085 | mutex_unlock(&priv->conf_mutex); | |
2086 | return -ENOMEM; | |
2087 | } | |
2088 | ||
2089 | /* TODO: some devices have 4 more free slots for rx keys */ | |
2090 | rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey)); | |
2091 | rxkey->entry = key->keyidx; | |
2092 | rxkey->key_id = key->keyidx; | |
2093 | rxkey->key_type = algo; | |
2094 | if (address) | |
2095 | memcpy(rxkey->mac, address, ETH_ALEN); | |
2096 | else | |
2097 | memset(rxkey->mac, ~0, ETH_ALEN); | |
2098 | if (key->alg != ALG_TKIP) { | |
2099 | rxkey->key_len = min((u8)16, key->keylen); | |
2100 | memcpy(rxkey->key, key->key, rxkey->key_len); | |
2101 | } else { | |
2102 | rxkey->key_len = 24; | |
2103 | memcpy(rxkey->key, key->key, 16); | |
2104 | memcpy(&(rxkey->key[16]), &(key->key | |
2105 | [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8); | |
2106 | } | |
2107 | ||
0a5ec96a | 2108 | priv->tx(dev, skb); |
25900ef0 CL |
2109 | mutex_unlock(&priv->conf_mutex); |
2110 | return 0; | |
2111 | } | |
2112 | ||
eff1a59c MW |
2113 | static const struct ieee80211_ops p54_ops = { |
2114 | .tx = p54_tx, | |
4150c572 JB |
2115 | .start = p54_start, |
2116 | .stop = p54_stop, | |
eff1a59c MW |
2117 | .add_interface = p54_add_interface, |
2118 | .remove_interface = p54_remove_interface, | |
e5ea92a7 | 2119 | .set_tim = p54_set_tim, |
c772a08b | 2120 | .sta_notify = p54_sta_notify, |
25900ef0 | 2121 | .set_key = p54_set_key, |
eff1a59c MW |
2122 | .config = p54_config, |
2123 | .config_interface = p54_config_interface, | |
40333e4f | 2124 | .bss_info_changed = p54_bss_info_changed, |
4150c572 | 2125 | .configure_filter = p54_configure_filter, |
eff1a59c MW |
2126 | .conf_tx = p54_conf_tx, |
2127 | .get_stats = p54_get_stats, | |
2128 | .get_tx_stats = p54_get_tx_stats | |
2129 | }; | |
2130 | ||
2131 | struct ieee80211_hw *p54_init_common(size_t priv_data_len) | |
2132 | { | |
2133 | struct ieee80211_hw *dev; | |
2134 | struct p54_common *priv; | |
eff1a59c MW |
2135 | |
2136 | dev = ieee80211_alloc_hw(priv_data_len, &p54_ops); | |
2137 | if (!dev) | |
2138 | return NULL; | |
2139 | ||
2140 | priv = dev->priv; | |
54fdb040 | 2141 | priv->hw = dev; |
05c914fe | 2142 | priv->mode = NL80211_IFTYPE_UNSPECIFIED; |
ced09574 | 2143 | priv->basic_rate_mask = 0x15f; |
eff1a59c | 2144 | skb_queue_head_init(&priv->tx_queue); |
94585b09 | 2145 | dev->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
cc6de669 CL |
2146 | IEEE80211_HW_SIGNAL_DBM | |
2147 | IEEE80211_HW_NOISE_DBM; | |
f59ac048 | 2148 | |
d131bb59 CL |
2149 | dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
2150 | BIT(NL80211_IFTYPE_ADHOC) | | |
2151 | BIT(NL80211_IFTYPE_AP) | | |
2152 | BIT(NL80211_IFTYPE_MESH_POINT); | |
f59ac048 | 2153 | |
eff1a59c | 2154 | dev->channel_change_time = 1000; /* TODO: find actual value */ |
9e7f3f8e CL |
2155 | priv->tx_stats[0].limit = 1; /* Beacon queue */ |
2156 | priv->tx_stats[1].limit = 1; /* Probe queue for HW scan */ | |
2157 | priv->tx_stats[2].limit = 3; /* queue for MLMEs */ | |
2158 | priv->tx_stats[3].limit = 3; /* Broadcast / MC queue */ | |
2159 | priv->tx_stats[4].limit = 5; /* Data */ | |
eff1a59c | 2160 | dev->queues = 1; |
cc6de669 | 2161 | priv->noise = -94; |
c12abae3 JB |
2162 | /* |
2163 | * We support at most 8 tries no matter which rate they're at, | |
2164 | * we cannot support max_rates * max_rate_tries as we set it | |
2165 | * here, but setting it correctly to 4/2 or so would limit us | |
2166 | * artificially if the RC algorithm wants just two rates, so | |
2167 | * let's say 4/7, we'll redistribute it at TX time, see the | |
2168 | * comments there. | |
2169 | */ | |
2170 | dev->max_rates = 4; | |
2171 | dev->max_rate_tries = 7; | |
27df605e JL |
2172 | dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 + |
2173 | sizeof(struct p54_tx_data); | |
eff1a59c | 2174 | |
6041e2a0 | 2175 | mutex_init(&priv->conf_mutex); |
7cb77072 | 2176 | init_completion(&priv->eeprom_comp); |
54fdb040 | 2177 | INIT_DELAYED_WORK(&priv->work, p54_work); |
eff1a59c | 2178 | |
eff1a59c MW |
2179 | return dev; |
2180 | } | |
2181 | EXPORT_SYMBOL_GPL(p54_init_common); | |
2182 | ||
2183 | void p54_free_common(struct ieee80211_hw *dev) | |
2184 | { | |
2185 | struct p54_common *priv = dev->priv; | |
2186 | kfree(priv->iq_autocal); | |
2187 | kfree(priv->output_limit); | |
2188 | kfree(priv->curve_data); | |
eff1a59c MW |
2189 | } |
2190 | EXPORT_SYMBOL_GPL(p54_free_common); | |
2191 | ||
2192 | static int __init p54_init(void) | |
2193 | { | |
2194 | return 0; | |
2195 | } | |
2196 | ||
2197 | static void __exit p54_exit(void) | |
2198 | { | |
2199 | } | |
2200 | ||
2201 | module_init(p54_init); | |
2202 | module_exit(p54_exit); |