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Commit | Line | Data |
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06b16ae5 LCC |
1 | /* |
2 | * Copyright (C) 2008, cozybit Inc. | |
3 | * Copyright (C) 2003-2006, Marvell International Ltd. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or (at | |
8 | * your option) any later version. | |
9 | */ | |
edfcba15 JL |
10 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
11 | ||
5a0e3ad6 TH |
12 | #include <linux/slab.h> |
13 | ||
edfcba15 | 14 | #include <linux/etherdevice.h> |
06b16ae5 | 15 | #include "libertas_tf.h" |
06b16ae5 LCC |
16 | |
17 | #define DRIVER_RELEASE_VERSION "004.p0" | |
18 | /* thinfirm version: 5.132.X.pX */ | |
19 | #define LBTF_FW_VER_MIN 0x05840300 | |
20 | #define LBTF_FW_VER_MAX 0x0584ffff | |
21 | #define QOS_CONTROL_LEN 2 | |
22 | ||
e9bd5bcd S |
23 | /* Module parameters */ |
24 | unsigned int lbtf_debug; | |
25 | EXPORT_SYMBOL_GPL(lbtf_debug); | |
26 | module_param_named(libertas_tf_debug, lbtf_debug, int, 0644); | |
27 | ||
28 | static const char lbtf_driver_version[] = "THINFIRM-USB8388-" DRIVER_RELEASE_VERSION | |
29 | #ifdef DEBUG | |
30 | "-dbg" | |
31 | #endif | |
32 | ""; | |
33 | ||
06b16ae5 LCC |
34 | struct workqueue_struct *lbtf_wq; |
35 | ||
36 | static const struct ieee80211_channel lbtf_channels[] = { | |
37 | { .center_freq = 2412, .hw_value = 1 }, | |
38 | { .center_freq = 2417, .hw_value = 2 }, | |
39 | { .center_freq = 2422, .hw_value = 3 }, | |
40 | { .center_freq = 2427, .hw_value = 4 }, | |
41 | { .center_freq = 2432, .hw_value = 5 }, | |
42 | { .center_freq = 2437, .hw_value = 6 }, | |
43 | { .center_freq = 2442, .hw_value = 7 }, | |
44 | { .center_freq = 2447, .hw_value = 8 }, | |
45 | { .center_freq = 2452, .hw_value = 9 }, | |
46 | { .center_freq = 2457, .hw_value = 10 }, | |
47 | { .center_freq = 2462, .hw_value = 11 }, | |
48 | { .center_freq = 2467, .hw_value = 12 }, | |
49 | { .center_freq = 2472, .hw_value = 13 }, | |
50 | { .center_freq = 2484, .hw_value = 14 }, | |
51 | }; | |
52 | ||
53 | /* This table contains the hardware specific values for the modulation rates. */ | |
54 | static const struct ieee80211_rate lbtf_rates[] = { | |
55 | { .bitrate = 10, | |
56 | .hw_value = 0, }, | |
57 | { .bitrate = 20, | |
58 | .hw_value = 1, | |
59 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
60 | { .bitrate = 55, | |
61 | .hw_value = 2, | |
62 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
63 | { .bitrate = 110, | |
64 | .hw_value = 3, | |
65 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
66 | { .bitrate = 60, | |
67 | .hw_value = 5, | |
68 | .flags = 0 }, | |
69 | { .bitrate = 90, | |
70 | .hw_value = 6, | |
71 | .flags = 0 }, | |
72 | { .bitrate = 120, | |
73 | .hw_value = 7, | |
74 | .flags = 0 }, | |
75 | { .bitrate = 180, | |
76 | .hw_value = 8, | |
77 | .flags = 0 }, | |
78 | { .bitrate = 240, | |
79 | .hw_value = 9, | |
80 | .flags = 0 }, | |
81 | { .bitrate = 360, | |
82 | .hw_value = 10, | |
83 | .flags = 0 }, | |
84 | { .bitrate = 480, | |
85 | .hw_value = 11, | |
86 | .flags = 0 }, | |
87 | { .bitrate = 540, | |
88 | .hw_value = 12, | |
89 | .flags = 0 }, | |
90 | }; | |
91 | ||
92 | static void lbtf_cmd_work(struct work_struct *work) | |
93 | { | |
94 | struct lbtf_private *priv = container_of(work, struct lbtf_private, | |
95 | cmd_work); | |
e9bd5bcd S |
96 | |
97 | lbtf_deb_enter(LBTF_DEB_CMD); | |
98 | ||
06b16ae5 LCC |
99 | spin_lock_irq(&priv->driver_lock); |
100 | /* command response? */ | |
101 | if (priv->cmd_response_rxed) { | |
102 | priv->cmd_response_rxed = 0; | |
103 | spin_unlock_irq(&priv->driver_lock); | |
104 | lbtf_process_rx_command(priv); | |
105 | spin_lock_irq(&priv->driver_lock); | |
106 | } | |
107 | ||
108 | if (priv->cmd_timed_out && priv->cur_cmd) { | |
109 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
110 | ||
111 | if (++priv->nr_retries > 10) { | |
112 | lbtf_complete_command(priv, cmdnode, | |
113 | -ETIMEDOUT); | |
114 | priv->nr_retries = 0; | |
115 | } else { | |
116 | priv->cur_cmd = NULL; | |
117 | ||
118 | /* Stick it back at the _top_ of the pending | |
119 | * queue for immediate resubmission */ | |
120 | list_add(&cmdnode->list, &priv->cmdpendingq); | |
121 | } | |
122 | } | |
123 | priv->cmd_timed_out = 0; | |
124 | spin_unlock_irq(&priv->driver_lock); | |
125 | ||
e9bd5bcd S |
126 | if (!priv->fw_ready) { |
127 | lbtf_deb_leave_args(LBTF_DEB_CMD, "fw not ready"); | |
06b16ae5 | 128 | return; |
e9bd5bcd S |
129 | } |
130 | ||
06b16ae5 LCC |
131 | /* Execute the next command */ |
132 | if (!priv->cur_cmd) | |
133 | lbtf_execute_next_command(priv); | |
e9bd5bcd S |
134 | |
135 | lbtf_deb_leave(LBTF_DEB_CMD); | |
06b16ae5 LCC |
136 | } |
137 | ||
138 | /** | |
139 | * lbtf_setup_firmware: initialize firmware. | |
140 | * | |
141 | * @priv A pointer to struct lbtf_private structure | |
142 | * | |
143 | * Returns: 0 on success. | |
144 | */ | |
145 | static int lbtf_setup_firmware(struct lbtf_private *priv) | |
146 | { | |
147 | int ret = -1; | |
148 | ||
e9bd5bcd | 149 | lbtf_deb_enter(LBTF_DEB_FW); |
06b16ae5 LCC |
150 | /* |
151 | * Read priv address from HW | |
152 | */ | |
153 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
154 | ret = lbtf_update_hw_spec(priv); | |
155 | if (ret) { | |
156 | ret = -1; | |
157 | goto done; | |
158 | } | |
159 | ||
160 | lbtf_set_mac_control(priv); | |
161 | lbtf_set_radio_control(priv); | |
162 | ||
163 | ret = 0; | |
164 | done: | |
e9bd5bcd | 165 | lbtf_deb_leave_args(LBTF_DEB_FW, "ret: %d", ret); |
06b16ae5 LCC |
166 | return ret; |
167 | } | |
168 | ||
169 | /** | |
170 | * This function handles the timeout of command sending. | |
171 | * It will re-send the same command again. | |
172 | */ | |
173 | static void command_timer_fn(unsigned long data) | |
174 | { | |
175 | struct lbtf_private *priv = (struct lbtf_private *)data; | |
176 | unsigned long flags; | |
e9bd5bcd | 177 | lbtf_deb_enter(LBTF_DEB_CMD); |
06b16ae5 LCC |
178 | |
179 | spin_lock_irqsave(&priv->driver_lock, flags); | |
180 | ||
181 | if (!priv->cur_cmd) { | |
182 | printk(KERN_DEBUG "libertastf: command timer expired; " | |
183 | "no pending command\n"); | |
184 | goto out; | |
185 | } | |
186 | ||
187 | printk(KERN_DEBUG "libertas: command %x timed out\n", | |
188 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
189 | ||
190 | priv->cmd_timed_out = 1; | |
191 | queue_work(lbtf_wq, &priv->cmd_work); | |
192 | out: | |
193 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
e9bd5bcd | 194 | lbtf_deb_leave(LBTF_DEB_CMD); |
06b16ae5 LCC |
195 | } |
196 | ||
197 | static int lbtf_init_adapter(struct lbtf_private *priv) | |
198 | { | |
e9bd5bcd | 199 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
200 | memset(priv->current_addr, 0xff, ETH_ALEN); |
201 | mutex_init(&priv->lock); | |
202 | ||
203 | priv->vif = NULL; | |
204 | setup_timer(&priv->command_timer, command_timer_fn, | |
205 | (unsigned long)priv); | |
206 | ||
207 | INIT_LIST_HEAD(&priv->cmdfreeq); | |
208 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
209 | ||
210 | spin_lock_init(&priv->driver_lock); | |
211 | ||
212 | /* Allocate the command buffers */ | |
213 | if (lbtf_allocate_cmd_buffer(priv)) | |
214 | return -1; | |
215 | ||
e9bd5bcd | 216 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
217 | return 0; |
218 | } | |
219 | ||
220 | static void lbtf_free_adapter(struct lbtf_private *priv) | |
221 | { | |
e9bd5bcd | 222 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
223 | lbtf_free_cmd_buffer(priv); |
224 | del_timer(&priv->command_timer); | |
e9bd5bcd | 225 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
226 | } |
227 | ||
7bb45683 | 228 | static void lbtf_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
06b16ae5 LCC |
229 | { |
230 | struct lbtf_private *priv = hw->priv; | |
231 | ||
232 | priv->skb_to_tx = skb; | |
233 | queue_work(lbtf_wq, &priv->tx_work); | |
234 | /* | |
235 | * queue will be restarted when we receive transmission feedback if | |
236 | * there are no buffered multicast frames to send | |
237 | */ | |
238 | ieee80211_stop_queues(priv->hw); | |
06b16ae5 LCC |
239 | } |
240 | ||
241 | static void lbtf_tx_work(struct work_struct *work) | |
242 | { | |
243 | struct lbtf_private *priv = container_of(work, struct lbtf_private, | |
244 | tx_work); | |
245 | unsigned int len; | |
246 | struct ieee80211_tx_info *info; | |
247 | struct txpd *txpd; | |
248 | struct sk_buff *skb = NULL; | |
249 | int err; | |
250 | ||
e9bd5bcd S |
251 | lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
252 | ||
05c914fe | 253 | if ((priv->vif->type == NL80211_IFTYPE_AP) && |
06b16ae5 LCC |
254 | (!skb_queue_empty(&priv->bc_ps_buf))) |
255 | skb = skb_dequeue(&priv->bc_ps_buf); | |
256 | else if (priv->skb_to_tx) { | |
257 | skb = priv->skb_to_tx; | |
258 | priv->skb_to_tx = NULL; | |
e9bd5bcd S |
259 | } else { |
260 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); | |
06b16ae5 | 261 | return; |
e9bd5bcd | 262 | } |
06b16ae5 LCC |
263 | |
264 | len = skb->len; | |
265 | info = IEEE80211_SKB_CB(skb); | |
266 | txpd = (struct txpd *) skb_push(skb, sizeof(struct txpd)); | |
267 | ||
268 | if (priv->surpriseremoved) { | |
269 | dev_kfree_skb_any(skb); | |
e9bd5bcd | 270 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
06b16ae5 LCC |
271 | return; |
272 | } | |
273 | ||
274 | memset(txpd, 0, sizeof(struct txpd)); | |
275 | /* Activate per-packet rate selection */ | |
276 | txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE | | |
277 | ieee80211_get_tx_rate(priv->hw, info)->hw_value); | |
278 | ||
279 | /* copy destination address from 802.11 header */ | |
280 | memcpy(txpd->tx_dest_addr_high, skb->data + sizeof(struct txpd) + 4, | |
281 | ETH_ALEN); | |
282 | txpd->tx_packet_length = cpu_to_le16(len); | |
283 | txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd)); | |
e9bd5bcd | 284 | lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100)); |
06b16ae5 LCC |
285 | BUG_ON(priv->tx_skb); |
286 | spin_lock_irq(&priv->driver_lock); | |
287 | priv->tx_skb = skb; | |
288 | err = priv->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len); | |
289 | spin_unlock_irq(&priv->driver_lock); | |
290 | if (err) { | |
291 | dev_kfree_skb_any(skb); | |
292 | priv->tx_skb = NULL; | |
e9bd5bcd | 293 | pr_err("TX error: %d", err); |
06b16ae5 | 294 | } |
e9bd5bcd | 295 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
06b16ae5 LCC |
296 | } |
297 | ||
298 | static int lbtf_op_start(struct ieee80211_hw *hw) | |
299 | { | |
300 | struct lbtf_private *priv = hw->priv; | |
301 | void *card = priv->card; | |
302 | int ret = -1; | |
303 | ||
e9bd5bcd S |
304 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
305 | ||
06b16ae5 LCC |
306 | if (!priv->fw_ready) |
307 | /* Upload firmware */ | |
308 | if (priv->hw_prog_firmware(card)) | |
309 | goto err_prog_firmware; | |
310 | ||
311 | /* poke the firmware */ | |
312 | priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; | |
313 | priv->radioon = RADIO_ON; | |
314 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; | |
315 | ret = lbtf_setup_firmware(priv); | |
316 | if (ret) | |
317 | goto err_prog_firmware; | |
318 | ||
319 | if ((priv->fwrelease < LBTF_FW_VER_MIN) || | |
320 | (priv->fwrelease > LBTF_FW_VER_MAX)) { | |
321 | ret = -1; | |
322 | goto err_prog_firmware; | |
323 | } | |
324 | ||
325 | printk(KERN_INFO "libertastf: Marvell WLAN 802.11 thinfirm adapter\n"); | |
e9bd5bcd | 326 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
327 | return 0; |
328 | ||
329 | err_prog_firmware: | |
330 | priv->hw_reset_device(card); | |
e9bd5bcd | 331 | lbtf_deb_leave_args(LBTF_DEB_MACOPS, "error programing fw; ret=%d", ret); |
06b16ae5 LCC |
332 | return ret; |
333 | } | |
334 | ||
335 | static void lbtf_op_stop(struct ieee80211_hw *hw) | |
336 | { | |
337 | struct lbtf_private *priv = hw->priv; | |
338 | unsigned long flags; | |
339 | struct sk_buff *skb; | |
340 | ||
341 | struct cmd_ctrl_node *cmdnode; | |
e9bd5bcd S |
342 | |
343 | lbtf_deb_enter(LBTF_DEB_MACOPS); | |
344 | ||
06b16ae5 LCC |
345 | /* Flush pending command nodes */ |
346 | spin_lock_irqsave(&priv->driver_lock, flags); | |
347 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { | |
348 | cmdnode->result = -ENOENT; | |
349 | cmdnode->cmdwaitqwoken = 1; | |
350 | wake_up_interruptible(&cmdnode->cmdwait_q); | |
351 | } | |
352 | ||
353 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
354 | cancel_work_sync(&priv->cmd_work); | |
355 | cancel_work_sync(&priv->tx_work); | |
356 | while ((skb = skb_dequeue(&priv->bc_ps_buf))) | |
357 | dev_kfree_skb_any(skb); | |
358 | priv->radioon = RADIO_OFF; | |
359 | lbtf_set_radio_control(priv); | |
360 | ||
e9bd5bcd | 361 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
362 | } |
363 | ||
364 | static int lbtf_op_add_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 365 | struct ieee80211_vif *vif) |
06b16ae5 LCC |
366 | { |
367 | struct lbtf_private *priv = hw->priv; | |
e9bd5bcd | 368 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
369 | if (priv->vif != NULL) |
370 | return -EOPNOTSUPP; | |
371 | ||
1ed32e4f JB |
372 | priv->vif = vif; |
373 | switch (vif->type) { | |
05c914fe JB |
374 | case NL80211_IFTYPE_MESH_POINT: |
375 | case NL80211_IFTYPE_AP: | |
06b16ae5 LCC |
376 | lbtf_set_mode(priv, LBTF_AP_MODE); |
377 | break; | |
05c914fe | 378 | case NL80211_IFTYPE_STATION: |
06b16ae5 LCC |
379 | lbtf_set_mode(priv, LBTF_STA_MODE); |
380 | break; | |
381 | default: | |
382 | priv->vif = NULL; | |
383 | return -EOPNOTSUPP; | |
384 | } | |
1ed32e4f | 385 | lbtf_set_mac_address(priv, (u8 *) vif->addr); |
e9bd5bcd | 386 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
387 | return 0; |
388 | } | |
389 | ||
390 | static void lbtf_op_remove_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 391 | struct ieee80211_vif *vif) |
06b16ae5 LCC |
392 | { |
393 | struct lbtf_private *priv = hw->priv; | |
e9bd5bcd | 394 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
06b16ae5 | 395 | |
05c914fe JB |
396 | if (priv->vif->type == NL80211_IFTYPE_AP || |
397 | priv->vif->type == NL80211_IFTYPE_MESH_POINT) | |
06b16ae5 LCC |
398 | lbtf_beacon_ctrl(priv, 0, 0); |
399 | lbtf_set_mode(priv, LBTF_PASSIVE_MODE); | |
400 | lbtf_set_bssid(priv, 0, NULL); | |
401 | priv->vif = NULL; | |
e9bd5bcd | 402 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
403 | } |
404 | ||
e8975581 | 405 | static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed) |
06b16ae5 LCC |
406 | { |
407 | struct lbtf_private *priv = hw->priv; | |
e8975581 | 408 | struct ieee80211_conf *conf = &hw->conf; |
e9bd5bcd | 409 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
e8975581 | 410 | |
06b16ae5 LCC |
411 | if (conf->channel->center_freq != priv->cur_freq) { |
412 | priv->cur_freq = conf->channel->center_freq; | |
413 | lbtf_set_channel(priv, conf->channel->hw_value); | |
414 | } | |
e9bd5bcd | 415 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
416 | return 0; |
417 | } | |
418 | ||
3ac64bee | 419 | static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw, |
22bedad3 | 420 | struct netdev_hw_addr_list *mc_list) |
3ac64bee JB |
421 | { |
422 | struct lbtf_private *priv = hw->priv; | |
423 | int i; | |
22bedad3 JP |
424 | struct netdev_hw_addr *ha; |
425 | int mc_count = netdev_hw_addr_list_count(mc_list); | |
3ac64bee JB |
426 | |
427 | if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE) | |
428 | return mc_count; | |
429 | ||
430 | priv->nr_of_multicastmacaddr = mc_count; | |
22bedad3 JP |
431 | i = 0; |
432 | netdev_hw_addr_list_for_each(ha, mc_list) | |
433 | memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN); | |
3ac64bee JB |
434 | |
435 | return mc_count; | |
436 | } | |
437 | ||
06b16ae5 LCC |
438 | #define SUPPORTED_FIF_FLAGS (FIF_PROMISC_IN_BSS | FIF_ALLMULTI) |
439 | static void lbtf_op_configure_filter(struct ieee80211_hw *hw, | |
440 | unsigned int changed_flags, | |
441 | unsigned int *new_flags, | |
3ac64bee | 442 | u64 multicast) |
06b16ae5 LCC |
443 | { |
444 | struct lbtf_private *priv = hw->priv; | |
445 | int old_mac_control = priv->mac_control; | |
e9bd5bcd S |
446 | |
447 | lbtf_deb_enter(LBTF_DEB_MACOPS); | |
448 | ||
06b16ae5 LCC |
449 | changed_flags &= SUPPORTED_FIF_FLAGS; |
450 | *new_flags &= SUPPORTED_FIF_FLAGS; | |
451 | ||
e9bd5bcd S |
452 | if (!changed_flags) { |
453 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 | 454 | return; |
e9bd5bcd | 455 | } |
06b16ae5 LCC |
456 | |
457 | if (*new_flags & (FIF_PROMISC_IN_BSS)) | |
458 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
459 | else | |
460 | priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
461 | if (*new_flags & (FIF_ALLMULTI) || | |
3ac64bee | 462 | multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) { |
06b16ae5 LCC |
463 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; |
464 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
3ac64bee | 465 | } else if (multicast) { |
06b16ae5 LCC |
466 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; |
467 | priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
06b16ae5 LCC |
468 | lbtf_cmd_set_mac_multicast_addr(priv); |
469 | } else { | |
470 | priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE | | |
471 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
472 | if (priv->nr_of_multicastmacaddr) { | |
473 | priv->nr_of_multicastmacaddr = 0; | |
474 | lbtf_cmd_set_mac_multicast_addr(priv); | |
475 | } | |
476 | } | |
477 | ||
478 | ||
479 | if (priv->mac_control != old_mac_control) | |
480 | lbtf_set_mac_control(priv); | |
e9bd5bcd S |
481 | |
482 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 LCC |
483 | } |
484 | ||
485 | static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw, | |
486 | struct ieee80211_vif *vif, | |
487 | struct ieee80211_bss_conf *bss_conf, | |
488 | u32 changes) | |
489 | { | |
490 | struct lbtf_private *priv = hw->priv; | |
2d0ddec5 | 491 | struct sk_buff *beacon; |
e9bd5bcd | 492 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
2d0ddec5 JB |
493 | |
494 | if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) { | |
495 | switch (priv->vif->type) { | |
496 | case NL80211_IFTYPE_AP: | |
497 | case NL80211_IFTYPE_MESH_POINT: | |
498 | beacon = ieee80211_beacon_get(hw, vif); | |
499 | if (beacon) { | |
500 | lbtf_beacon_set(priv, beacon); | |
501 | kfree_skb(beacon); | |
502 | lbtf_beacon_ctrl(priv, 1, | |
503 | bss_conf->beacon_int); | |
504 | } | |
505 | break; | |
506 | default: | |
507 | break; | |
508 | } | |
509 | } | |
510 | ||
511 | if (changes & BSS_CHANGED_BSSID) { | |
512 | bool activate = !is_zero_ether_addr(bss_conf->bssid); | |
513 | lbtf_set_bssid(priv, activate, bss_conf->bssid); | |
514 | } | |
06b16ae5 LCC |
515 | |
516 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
517 | if (bss_conf->use_short_preamble) | |
518 | priv->preamble = CMD_TYPE_SHORT_PREAMBLE; | |
519 | else | |
520 | priv->preamble = CMD_TYPE_LONG_PREAMBLE; | |
521 | lbtf_set_radio_control(priv); | |
522 | } | |
e9bd5bcd S |
523 | |
524 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 LCC |
525 | } |
526 | ||
bef9cb58 JL |
527 | static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx, |
528 | struct survey_info *survey) | |
529 | { | |
530 | struct lbtf_private *priv = hw->priv; | |
531 | struct ieee80211_conf *conf = &hw->conf; | |
532 | ||
533 | if (idx != 0) | |
534 | return -ENOENT; | |
535 | ||
536 | survey->channel = conf->channel; | |
537 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
538 | survey->noise = priv->noise; | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
06b16ae5 LCC |
543 | static const struct ieee80211_ops lbtf_ops = { |
544 | .tx = lbtf_op_tx, | |
545 | .start = lbtf_op_start, | |
546 | .stop = lbtf_op_stop, | |
547 | .add_interface = lbtf_op_add_interface, | |
548 | .remove_interface = lbtf_op_remove_interface, | |
549 | .config = lbtf_op_config, | |
3ac64bee | 550 | .prepare_multicast = lbtf_op_prepare_multicast, |
06b16ae5 LCC |
551 | .configure_filter = lbtf_op_configure_filter, |
552 | .bss_info_changed = lbtf_op_bss_info_changed, | |
bef9cb58 | 553 | .get_survey = lbtf_op_get_survey, |
06b16ae5 LCC |
554 | }; |
555 | ||
556 | int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb) | |
557 | { | |
558 | struct ieee80211_rx_status stats; | |
559 | struct rxpd *prxpd; | |
de9cc7a4 | 560 | int need_padding; |
06b16ae5 | 561 | unsigned int flags; |
de9cc7a4 | 562 | struct ieee80211_hdr *hdr; |
06b16ae5 | 563 | |
e9bd5bcd S |
564 | lbtf_deb_enter(LBTF_DEB_RX); |
565 | ||
06b16ae5 LCC |
566 | prxpd = (struct rxpd *) skb->data; |
567 | ||
13deb23a | 568 | memset(&stats, 0, sizeof(stats)); |
06b16ae5 LCC |
569 | if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) |
570 | stats.flag |= RX_FLAG_FAILED_FCS_CRC; | |
571 | stats.freq = priv->cur_freq; | |
572 | stats.band = IEEE80211_BAND_2GHZ; | |
573 | stats.signal = prxpd->snr; | |
bef9cb58 | 574 | priv->noise = prxpd->nf; |
06b16ae5 LCC |
575 | /* Marvell rate index has a hole at value 4 */ |
576 | if (prxpd->rx_rate > 4) | |
577 | --prxpd->rx_rate; | |
578 | stats.rate_idx = prxpd->rx_rate; | |
579 | skb_pull(skb, sizeof(struct rxpd)); | |
580 | ||
de9cc7a4 | 581 | hdr = (struct ieee80211_hdr *)skb->data; |
06b16ae5 LCC |
582 | flags = le32_to_cpu(*(__le32 *)(skb->data + 4)); |
583 | ||
de9cc7a4 HH |
584 | need_padding = ieee80211_is_data_qos(hdr->frame_control); |
585 | need_padding ^= ieee80211_has_a4(hdr->frame_control); | |
586 | need_padding ^= ieee80211_is_data_qos(hdr->frame_control) && | |
587 | (*ieee80211_get_qos_ctl(hdr) & | |
588 | IEEE80211_QOS_CONTROL_A_MSDU_PRESENT); | |
06b16ae5 | 589 | |
06b16ae5 LCC |
590 | if (need_padding) { |
591 | memmove(skb->data + 2, skb->data, skb->len); | |
592 | skb_reserve(skb, 2); | |
593 | } | |
594 | ||
f1d58c25 | 595 | memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats)); |
e9bd5bcd S |
596 | |
597 | lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n", | |
598 | skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd)); | |
599 | lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data, | |
600 | min_t(unsigned int, skb->len, 100)); | |
601 | ||
f1d58c25 | 602 | ieee80211_rx_irqsafe(priv->hw, skb); |
e9bd5bcd S |
603 | |
604 | lbtf_deb_leave(LBTF_DEB_RX); | |
06b16ae5 LCC |
605 | return 0; |
606 | } | |
607 | EXPORT_SYMBOL_GPL(lbtf_rx); | |
608 | ||
609 | /** | |
610 | * lbtf_add_card: Add and initialize the card, no fw upload yet. | |
611 | * | |
612 | * @card A pointer to card | |
613 | * | |
614 | * Returns: pointer to struct lbtf_priv. | |
615 | */ | |
616 | struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev) | |
617 | { | |
618 | struct ieee80211_hw *hw; | |
619 | struct lbtf_private *priv = NULL; | |
620 | ||
e9bd5bcd S |
621 | lbtf_deb_enter(LBTF_DEB_MAIN); |
622 | ||
06b16ae5 LCC |
623 | hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops); |
624 | if (!hw) | |
625 | goto done; | |
626 | ||
627 | priv = hw->priv; | |
628 | if (lbtf_init_adapter(priv)) | |
629 | goto err_init_adapter; | |
630 | ||
631 | priv->hw = hw; | |
632 | priv->card = card; | |
633 | priv->tx_skb = NULL; | |
634 | ||
635 | hw->queues = 1; | |
636 | hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; | |
637 | hw->extra_tx_headroom = sizeof(struct txpd); | |
638 | memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels)); | |
639 | memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates)); | |
640 | priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates); | |
641 | priv->band.bitrates = priv->rates; | |
642 | priv->band.n_channels = ARRAY_SIZE(lbtf_channels); | |
643 | priv->band.channels = priv->channels; | |
644 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
f3233831 DS |
645 | hw->wiphy->interface_modes = |
646 | BIT(NL80211_IFTYPE_STATION) | | |
647 | BIT(NL80211_IFTYPE_ADHOC); | |
06b16ae5 LCC |
648 | skb_queue_head_init(&priv->bc_ps_buf); |
649 | ||
650 | SET_IEEE80211_DEV(hw, dmdev); | |
651 | ||
652 | INIT_WORK(&priv->cmd_work, lbtf_cmd_work); | |
653 | INIT_WORK(&priv->tx_work, lbtf_tx_work); | |
654 | if (ieee80211_register_hw(hw)) | |
655 | goto err_init_adapter; | |
656 | ||
657 | goto done; | |
658 | ||
659 | err_init_adapter: | |
660 | lbtf_free_adapter(priv); | |
661 | ieee80211_free_hw(hw); | |
662 | priv = NULL; | |
663 | ||
664 | done: | |
e9bd5bcd | 665 | lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv); |
06b16ae5 LCC |
666 | return priv; |
667 | } | |
668 | EXPORT_SYMBOL_GPL(lbtf_add_card); | |
669 | ||
670 | ||
671 | int lbtf_remove_card(struct lbtf_private *priv) | |
672 | { | |
673 | struct ieee80211_hw *hw = priv->hw; | |
674 | ||
e9bd5bcd S |
675 | lbtf_deb_enter(LBTF_DEB_MAIN); |
676 | ||
06b16ae5 LCC |
677 | priv->surpriseremoved = 1; |
678 | del_timer(&priv->command_timer); | |
679 | lbtf_free_adapter(priv); | |
680 | priv->hw = NULL; | |
681 | ieee80211_unregister_hw(hw); | |
682 | ieee80211_free_hw(hw); | |
683 | ||
e9bd5bcd | 684 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
685 | return 0; |
686 | } | |
687 | EXPORT_SYMBOL_GPL(lbtf_remove_card); | |
688 | ||
689 | void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail) | |
690 | { | |
691 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); | |
e6a9854b JB |
692 | |
693 | ieee80211_tx_info_clear_status(info); | |
06b16ae5 LCC |
694 | /* |
695 | * Commented out, otherwise we never go beyond 1Mbit/s using mac80211 | |
696 | * default pid rc algorithm. | |
697 | * | |
698 | * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt; | |
699 | */ | |
06b16ae5 LCC |
700 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail) |
701 | info->flags |= IEEE80211_TX_STAT_ACK; | |
702 | skb_pull(priv->tx_skb, sizeof(struct txpd)); | |
703 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); | |
704 | priv->tx_skb = NULL; | |
705 | if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf)) | |
706 | ieee80211_wake_queues(priv->hw); | |
707 | else | |
708 | queue_work(lbtf_wq, &priv->tx_work); | |
709 | } | |
710 | EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback); | |
711 | ||
712 | void lbtf_bcn_sent(struct lbtf_private *priv) | |
713 | { | |
714 | struct sk_buff *skb = NULL; | |
715 | ||
05c914fe | 716 | if (priv->vif->type != NL80211_IFTYPE_AP) |
06b16ae5 LCC |
717 | return; |
718 | ||
719 | if (skb_queue_empty(&priv->bc_ps_buf)) { | |
720 | bool tx_buff_bc = 0; | |
721 | ||
722 | while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) { | |
723 | skb_queue_tail(&priv->bc_ps_buf, skb); | |
724 | tx_buff_bc = 1; | |
725 | } | |
726 | if (tx_buff_bc) { | |
727 | ieee80211_stop_queues(priv->hw); | |
728 | queue_work(lbtf_wq, &priv->tx_work); | |
729 | } | |
730 | } | |
731 | ||
732 | skb = ieee80211_beacon_get(priv->hw, priv->vif); | |
733 | ||
734 | if (skb) { | |
735 | lbtf_beacon_set(priv, skb); | |
736 | kfree_skb(skb); | |
737 | } | |
738 | } | |
739 | EXPORT_SYMBOL_GPL(lbtf_bcn_sent); | |
740 | ||
741 | static int __init lbtf_init_module(void) | |
742 | { | |
e9bd5bcd | 743 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
744 | lbtf_wq = create_workqueue("libertastf"); |
745 | if (lbtf_wq == NULL) { | |
746 | printk(KERN_ERR "libertastf: couldn't create workqueue\n"); | |
747 | return -ENOMEM; | |
748 | } | |
e9bd5bcd | 749 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
750 | return 0; |
751 | } | |
752 | ||
753 | static void __exit lbtf_exit_module(void) | |
754 | { | |
e9bd5bcd | 755 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 | 756 | destroy_workqueue(lbtf_wq); |
e9bd5bcd | 757 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
758 | } |
759 | ||
760 | module_init(lbtf_init_module); | |
761 | module_exit(lbtf_exit_module); | |
762 | ||
763 | MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library"); | |
764 | MODULE_AUTHOR("Cozybit Inc."); | |
765 | MODULE_LICENSE("GPL"); |