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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 | ||
a6b7a407 | 12 | #include <linux/hardirq.h> |
5a0e3ad6 TH |
13 | #include <linux/slab.h> |
14 | ||
edfcba15 | 15 | #include <linux/etherdevice.h> |
9d9779e7 | 16 | #include <linux/module.h> |
06b16ae5 | 17 | #include "libertas_tf.h" |
06b16ae5 LCC |
18 | |
19 | #define DRIVER_RELEASE_VERSION "004.p0" | |
20 | /* thinfirm version: 5.132.X.pX */ | |
21 | #define LBTF_FW_VER_MIN 0x05840300 | |
22 | #define LBTF_FW_VER_MAX 0x0584ffff | |
23 | #define QOS_CONTROL_LEN 2 | |
24 | ||
e9bd5bcd S |
25 | /* Module parameters */ |
26 | unsigned int lbtf_debug; | |
27 | EXPORT_SYMBOL_GPL(lbtf_debug); | |
28 | module_param_named(libertas_tf_debug, lbtf_debug, int, 0644); | |
29 | ||
30 | static const char lbtf_driver_version[] = "THINFIRM-USB8388-" DRIVER_RELEASE_VERSION | |
31 | #ifdef DEBUG | |
32 | "-dbg" | |
33 | #endif | |
34 | ""; | |
35 | ||
06b16ae5 LCC |
36 | struct workqueue_struct *lbtf_wq; |
37 | ||
38 | static const struct ieee80211_channel lbtf_channels[] = { | |
39 | { .center_freq = 2412, .hw_value = 1 }, | |
40 | { .center_freq = 2417, .hw_value = 2 }, | |
41 | { .center_freq = 2422, .hw_value = 3 }, | |
42 | { .center_freq = 2427, .hw_value = 4 }, | |
43 | { .center_freq = 2432, .hw_value = 5 }, | |
44 | { .center_freq = 2437, .hw_value = 6 }, | |
45 | { .center_freq = 2442, .hw_value = 7 }, | |
46 | { .center_freq = 2447, .hw_value = 8 }, | |
47 | { .center_freq = 2452, .hw_value = 9 }, | |
48 | { .center_freq = 2457, .hw_value = 10 }, | |
49 | { .center_freq = 2462, .hw_value = 11 }, | |
50 | { .center_freq = 2467, .hw_value = 12 }, | |
51 | { .center_freq = 2472, .hw_value = 13 }, | |
52 | { .center_freq = 2484, .hw_value = 14 }, | |
53 | }; | |
54 | ||
55 | /* This table contains the hardware specific values for the modulation rates. */ | |
56 | static const struct ieee80211_rate lbtf_rates[] = { | |
57 | { .bitrate = 10, | |
58 | .hw_value = 0, }, | |
59 | { .bitrate = 20, | |
60 | .hw_value = 1, | |
61 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
62 | { .bitrate = 55, | |
63 | .hw_value = 2, | |
64 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
65 | { .bitrate = 110, | |
66 | .hw_value = 3, | |
67 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
68 | { .bitrate = 60, | |
69 | .hw_value = 5, | |
70 | .flags = 0 }, | |
71 | { .bitrate = 90, | |
72 | .hw_value = 6, | |
73 | .flags = 0 }, | |
74 | { .bitrate = 120, | |
75 | .hw_value = 7, | |
76 | .flags = 0 }, | |
77 | { .bitrate = 180, | |
78 | .hw_value = 8, | |
79 | .flags = 0 }, | |
80 | { .bitrate = 240, | |
81 | .hw_value = 9, | |
82 | .flags = 0 }, | |
83 | { .bitrate = 360, | |
84 | .hw_value = 10, | |
85 | .flags = 0 }, | |
86 | { .bitrate = 480, | |
87 | .hw_value = 11, | |
88 | .flags = 0 }, | |
89 | { .bitrate = 540, | |
90 | .hw_value = 12, | |
91 | .flags = 0 }, | |
92 | }; | |
93 | ||
94 | static void lbtf_cmd_work(struct work_struct *work) | |
95 | { | |
96 | struct lbtf_private *priv = container_of(work, struct lbtf_private, | |
97 | cmd_work); | |
e9bd5bcd S |
98 | |
99 | lbtf_deb_enter(LBTF_DEB_CMD); | |
100 | ||
06b16ae5 LCC |
101 | spin_lock_irq(&priv->driver_lock); |
102 | /* command response? */ | |
103 | if (priv->cmd_response_rxed) { | |
104 | priv->cmd_response_rxed = 0; | |
105 | spin_unlock_irq(&priv->driver_lock); | |
106 | lbtf_process_rx_command(priv); | |
107 | spin_lock_irq(&priv->driver_lock); | |
108 | } | |
109 | ||
110 | if (priv->cmd_timed_out && priv->cur_cmd) { | |
111 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; | |
112 | ||
113 | if (++priv->nr_retries > 10) { | |
114 | lbtf_complete_command(priv, cmdnode, | |
115 | -ETIMEDOUT); | |
116 | priv->nr_retries = 0; | |
117 | } else { | |
118 | priv->cur_cmd = NULL; | |
119 | ||
120 | /* Stick it back at the _top_ of the pending | |
121 | * queue for immediate resubmission */ | |
122 | list_add(&cmdnode->list, &priv->cmdpendingq); | |
123 | } | |
124 | } | |
125 | priv->cmd_timed_out = 0; | |
126 | spin_unlock_irq(&priv->driver_lock); | |
127 | ||
e9bd5bcd S |
128 | if (!priv->fw_ready) { |
129 | lbtf_deb_leave_args(LBTF_DEB_CMD, "fw not ready"); | |
06b16ae5 | 130 | return; |
e9bd5bcd S |
131 | } |
132 | ||
06b16ae5 LCC |
133 | /* Execute the next command */ |
134 | if (!priv->cur_cmd) | |
135 | lbtf_execute_next_command(priv); | |
e9bd5bcd S |
136 | |
137 | lbtf_deb_leave(LBTF_DEB_CMD); | |
06b16ae5 LCC |
138 | } |
139 | ||
140 | /** | |
141 | * lbtf_setup_firmware: initialize firmware. | |
142 | * | |
143 | * @priv A pointer to struct lbtf_private structure | |
144 | * | |
145 | * Returns: 0 on success. | |
146 | */ | |
147 | static int lbtf_setup_firmware(struct lbtf_private *priv) | |
148 | { | |
149 | int ret = -1; | |
150 | ||
e9bd5bcd | 151 | lbtf_deb_enter(LBTF_DEB_FW); |
06b16ae5 LCC |
152 | /* |
153 | * Read priv address from HW | |
154 | */ | |
155 | memset(priv->current_addr, 0xff, ETH_ALEN); | |
156 | ret = lbtf_update_hw_spec(priv); | |
157 | if (ret) { | |
158 | ret = -1; | |
159 | goto done; | |
160 | } | |
161 | ||
162 | lbtf_set_mac_control(priv); | |
163 | lbtf_set_radio_control(priv); | |
164 | ||
165 | ret = 0; | |
166 | done: | |
e9bd5bcd | 167 | lbtf_deb_leave_args(LBTF_DEB_FW, "ret: %d", ret); |
06b16ae5 LCC |
168 | return ret; |
169 | } | |
170 | ||
171 | /** | |
172 | * This function handles the timeout of command sending. | |
173 | * It will re-send the same command again. | |
174 | */ | |
175 | static void command_timer_fn(unsigned long data) | |
176 | { | |
177 | struct lbtf_private *priv = (struct lbtf_private *)data; | |
178 | unsigned long flags; | |
e9bd5bcd | 179 | lbtf_deb_enter(LBTF_DEB_CMD); |
06b16ae5 LCC |
180 | |
181 | spin_lock_irqsave(&priv->driver_lock, flags); | |
182 | ||
183 | if (!priv->cur_cmd) { | |
184 | printk(KERN_DEBUG "libertastf: command timer expired; " | |
185 | "no pending command\n"); | |
186 | goto out; | |
187 | } | |
188 | ||
189 | printk(KERN_DEBUG "libertas: command %x timed out\n", | |
190 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); | |
191 | ||
192 | priv->cmd_timed_out = 1; | |
193 | queue_work(lbtf_wq, &priv->cmd_work); | |
194 | out: | |
195 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
e9bd5bcd | 196 | lbtf_deb_leave(LBTF_DEB_CMD); |
06b16ae5 LCC |
197 | } |
198 | ||
199 | static int lbtf_init_adapter(struct lbtf_private *priv) | |
200 | { | |
e9bd5bcd | 201 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
202 | memset(priv->current_addr, 0xff, ETH_ALEN); |
203 | mutex_init(&priv->lock); | |
204 | ||
205 | priv->vif = NULL; | |
206 | setup_timer(&priv->command_timer, command_timer_fn, | |
207 | (unsigned long)priv); | |
208 | ||
209 | INIT_LIST_HEAD(&priv->cmdfreeq); | |
210 | INIT_LIST_HEAD(&priv->cmdpendingq); | |
211 | ||
212 | spin_lock_init(&priv->driver_lock); | |
213 | ||
214 | /* Allocate the command buffers */ | |
215 | if (lbtf_allocate_cmd_buffer(priv)) | |
216 | return -1; | |
217 | ||
e9bd5bcd | 218 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
219 | return 0; |
220 | } | |
221 | ||
222 | static void lbtf_free_adapter(struct lbtf_private *priv) | |
223 | { | |
e9bd5bcd | 224 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
225 | lbtf_free_cmd_buffer(priv); |
226 | del_timer(&priv->command_timer); | |
e9bd5bcd | 227 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
228 | } |
229 | ||
7bb45683 | 230 | static void lbtf_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
06b16ae5 LCC |
231 | { |
232 | struct lbtf_private *priv = hw->priv; | |
233 | ||
234 | priv->skb_to_tx = skb; | |
235 | queue_work(lbtf_wq, &priv->tx_work); | |
236 | /* | |
237 | * queue will be restarted when we receive transmission feedback if | |
238 | * there are no buffered multicast frames to send | |
239 | */ | |
240 | ieee80211_stop_queues(priv->hw); | |
06b16ae5 LCC |
241 | } |
242 | ||
243 | static void lbtf_tx_work(struct work_struct *work) | |
244 | { | |
245 | struct lbtf_private *priv = container_of(work, struct lbtf_private, | |
246 | tx_work); | |
247 | unsigned int len; | |
248 | struct ieee80211_tx_info *info; | |
249 | struct txpd *txpd; | |
250 | struct sk_buff *skb = NULL; | |
251 | int err; | |
252 | ||
e9bd5bcd S |
253 | lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
254 | ||
05c914fe | 255 | if ((priv->vif->type == NL80211_IFTYPE_AP) && |
06b16ae5 LCC |
256 | (!skb_queue_empty(&priv->bc_ps_buf))) |
257 | skb = skb_dequeue(&priv->bc_ps_buf); | |
258 | else if (priv->skb_to_tx) { | |
259 | skb = priv->skb_to_tx; | |
260 | priv->skb_to_tx = NULL; | |
e9bd5bcd S |
261 | } else { |
262 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); | |
06b16ae5 | 263 | return; |
e9bd5bcd | 264 | } |
06b16ae5 LCC |
265 | |
266 | len = skb->len; | |
267 | info = IEEE80211_SKB_CB(skb); | |
268 | txpd = (struct txpd *) skb_push(skb, sizeof(struct txpd)); | |
269 | ||
270 | if (priv->surpriseremoved) { | |
271 | dev_kfree_skb_any(skb); | |
e9bd5bcd | 272 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
06b16ae5 LCC |
273 | return; |
274 | } | |
275 | ||
276 | memset(txpd, 0, sizeof(struct txpd)); | |
277 | /* Activate per-packet rate selection */ | |
278 | txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE | | |
279 | ieee80211_get_tx_rate(priv->hw, info)->hw_value); | |
280 | ||
281 | /* copy destination address from 802.11 header */ | |
282 | memcpy(txpd->tx_dest_addr_high, skb->data + sizeof(struct txpd) + 4, | |
283 | ETH_ALEN); | |
284 | txpd->tx_packet_length = cpu_to_le16(len); | |
285 | txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd)); | |
e9bd5bcd | 286 | lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100)); |
06b16ae5 LCC |
287 | BUG_ON(priv->tx_skb); |
288 | spin_lock_irq(&priv->driver_lock); | |
289 | priv->tx_skb = skb; | |
290 | err = priv->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len); | |
291 | spin_unlock_irq(&priv->driver_lock); | |
292 | if (err) { | |
293 | dev_kfree_skb_any(skb); | |
294 | priv->tx_skb = NULL; | |
e9bd5bcd | 295 | pr_err("TX error: %d", err); |
06b16ae5 | 296 | } |
e9bd5bcd | 297 | lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); |
06b16ae5 LCC |
298 | } |
299 | ||
300 | static int lbtf_op_start(struct ieee80211_hw *hw) | |
301 | { | |
302 | struct lbtf_private *priv = hw->priv; | |
303 | void *card = priv->card; | |
304 | int ret = -1; | |
305 | ||
e9bd5bcd S |
306 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
307 | ||
06b16ae5 LCC |
308 | if (!priv->fw_ready) |
309 | /* Upload firmware */ | |
310 | if (priv->hw_prog_firmware(card)) | |
311 | goto err_prog_firmware; | |
312 | ||
313 | /* poke the firmware */ | |
314 | priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; | |
315 | priv->radioon = RADIO_ON; | |
316 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; | |
317 | ret = lbtf_setup_firmware(priv); | |
318 | if (ret) | |
319 | goto err_prog_firmware; | |
320 | ||
321 | if ((priv->fwrelease < LBTF_FW_VER_MIN) || | |
322 | (priv->fwrelease > LBTF_FW_VER_MAX)) { | |
323 | ret = -1; | |
324 | goto err_prog_firmware; | |
325 | } | |
326 | ||
327 | printk(KERN_INFO "libertastf: Marvell WLAN 802.11 thinfirm adapter\n"); | |
e9bd5bcd | 328 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
329 | return 0; |
330 | ||
331 | err_prog_firmware: | |
332 | priv->hw_reset_device(card); | |
e9bd5bcd | 333 | lbtf_deb_leave_args(LBTF_DEB_MACOPS, "error programing fw; ret=%d", ret); |
06b16ae5 LCC |
334 | return ret; |
335 | } | |
336 | ||
337 | static void lbtf_op_stop(struct ieee80211_hw *hw) | |
338 | { | |
339 | struct lbtf_private *priv = hw->priv; | |
340 | unsigned long flags; | |
341 | struct sk_buff *skb; | |
342 | ||
343 | struct cmd_ctrl_node *cmdnode; | |
e9bd5bcd S |
344 | |
345 | lbtf_deb_enter(LBTF_DEB_MACOPS); | |
346 | ||
06b16ae5 LCC |
347 | /* Flush pending command nodes */ |
348 | spin_lock_irqsave(&priv->driver_lock, flags); | |
349 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { | |
350 | cmdnode->result = -ENOENT; | |
351 | cmdnode->cmdwaitqwoken = 1; | |
352 | wake_up_interruptible(&cmdnode->cmdwait_q); | |
353 | } | |
354 | ||
355 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
356 | cancel_work_sync(&priv->cmd_work); | |
357 | cancel_work_sync(&priv->tx_work); | |
358 | while ((skb = skb_dequeue(&priv->bc_ps_buf))) | |
359 | dev_kfree_skb_any(skb); | |
360 | priv->radioon = RADIO_OFF; | |
361 | lbtf_set_radio_control(priv); | |
362 | ||
e9bd5bcd | 363 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
364 | } |
365 | ||
366 | static int lbtf_op_add_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 367 | struct ieee80211_vif *vif) |
06b16ae5 LCC |
368 | { |
369 | struct lbtf_private *priv = hw->priv; | |
e9bd5bcd | 370 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
371 | if (priv->vif != NULL) |
372 | return -EOPNOTSUPP; | |
373 | ||
1ed32e4f JB |
374 | priv->vif = vif; |
375 | switch (vif->type) { | |
05c914fe JB |
376 | case NL80211_IFTYPE_MESH_POINT: |
377 | case NL80211_IFTYPE_AP: | |
06b16ae5 LCC |
378 | lbtf_set_mode(priv, LBTF_AP_MODE); |
379 | break; | |
05c914fe | 380 | case NL80211_IFTYPE_STATION: |
06b16ae5 LCC |
381 | lbtf_set_mode(priv, LBTF_STA_MODE); |
382 | break; | |
383 | default: | |
384 | priv->vif = NULL; | |
385 | return -EOPNOTSUPP; | |
386 | } | |
1ed32e4f | 387 | lbtf_set_mac_address(priv, (u8 *) vif->addr); |
e9bd5bcd | 388 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
389 | return 0; |
390 | } | |
391 | ||
392 | static void lbtf_op_remove_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 393 | struct ieee80211_vif *vif) |
06b16ae5 LCC |
394 | { |
395 | struct lbtf_private *priv = hw->priv; | |
e9bd5bcd | 396 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
06b16ae5 | 397 | |
05c914fe JB |
398 | if (priv->vif->type == NL80211_IFTYPE_AP || |
399 | priv->vif->type == NL80211_IFTYPE_MESH_POINT) | |
06b16ae5 LCC |
400 | lbtf_beacon_ctrl(priv, 0, 0); |
401 | lbtf_set_mode(priv, LBTF_PASSIVE_MODE); | |
402 | lbtf_set_bssid(priv, 0, NULL); | |
403 | priv->vif = NULL; | |
e9bd5bcd | 404 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
405 | } |
406 | ||
e8975581 | 407 | static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed) |
06b16ae5 LCC |
408 | { |
409 | struct lbtf_private *priv = hw->priv; | |
e8975581 | 410 | struct ieee80211_conf *conf = &hw->conf; |
e9bd5bcd | 411 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
e8975581 | 412 | |
06b16ae5 LCC |
413 | if (conf->channel->center_freq != priv->cur_freq) { |
414 | priv->cur_freq = conf->channel->center_freq; | |
415 | lbtf_set_channel(priv, conf->channel->hw_value); | |
416 | } | |
e9bd5bcd | 417 | lbtf_deb_leave(LBTF_DEB_MACOPS); |
06b16ae5 LCC |
418 | return 0; |
419 | } | |
420 | ||
3ac64bee | 421 | static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw, |
22bedad3 | 422 | struct netdev_hw_addr_list *mc_list) |
3ac64bee JB |
423 | { |
424 | struct lbtf_private *priv = hw->priv; | |
425 | int i; | |
22bedad3 JP |
426 | struct netdev_hw_addr *ha; |
427 | int mc_count = netdev_hw_addr_list_count(mc_list); | |
3ac64bee JB |
428 | |
429 | if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE) | |
430 | return mc_count; | |
431 | ||
432 | priv->nr_of_multicastmacaddr = mc_count; | |
22bedad3 JP |
433 | i = 0; |
434 | netdev_hw_addr_list_for_each(ha, mc_list) | |
435 | memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN); | |
3ac64bee JB |
436 | |
437 | return mc_count; | |
438 | } | |
439 | ||
06b16ae5 LCC |
440 | #define SUPPORTED_FIF_FLAGS (FIF_PROMISC_IN_BSS | FIF_ALLMULTI) |
441 | static void lbtf_op_configure_filter(struct ieee80211_hw *hw, | |
442 | unsigned int changed_flags, | |
443 | unsigned int *new_flags, | |
3ac64bee | 444 | u64 multicast) |
06b16ae5 LCC |
445 | { |
446 | struct lbtf_private *priv = hw->priv; | |
447 | int old_mac_control = priv->mac_control; | |
e9bd5bcd S |
448 | |
449 | lbtf_deb_enter(LBTF_DEB_MACOPS); | |
450 | ||
06b16ae5 LCC |
451 | changed_flags &= SUPPORTED_FIF_FLAGS; |
452 | *new_flags &= SUPPORTED_FIF_FLAGS; | |
453 | ||
e9bd5bcd S |
454 | if (!changed_flags) { |
455 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 | 456 | return; |
e9bd5bcd | 457 | } |
06b16ae5 LCC |
458 | |
459 | if (*new_flags & (FIF_PROMISC_IN_BSS)) | |
460 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
461 | else | |
462 | priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE; | |
463 | if (*new_flags & (FIF_ALLMULTI) || | |
3ac64bee | 464 | multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) { |
06b16ae5 LCC |
465 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; |
466 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; | |
3ac64bee | 467 | } else if (multicast) { |
06b16ae5 LCC |
468 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; |
469 | priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE; | |
06b16ae5 LCC |
470 | lbtf_cmd_set_mac_multicast_addr(priv); |
471 | } else { | |
472 | priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE | | |
473 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); | |
474 | if (priv->nr_of_multicastmacaddr) { | |
475 | priv->nr_of_multicastmacaddr = 0; | |
476 | lbtf_cmd_set_mac_multicast_addr(priv); | |
477 | } | |
478 | } | |
479 | ||
480 | ||
481 | if (priv->mac_control != old_mac_control) | |
482 | lbtf_set_mac_control(priv); | |
e9bd5bcd S |
483 | |
484 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 LCC |
485 | } |
486 | ||
487 | static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw, | |
488 | struct ieee80211_vif *vif, | |
489 | struct ieee80211_bss_conf *bss_conf, | |
490 | u32 changes) | |
491 | { | |
492 | struct lbtf_private *priv = hw->priv; | |
2d0ddec5 | 493 | struct sk_buff *beacon; |
e9bd5bcd | 494 | lbtf_deb_enter(LBTF_DEB_MACOPS); |
2d0ddec5 JB |
495 | |
496 | if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) { | |
497 | switch (priv->vif->type) { | |
498 | case NL80211_IFTYPE_AP: | |
499 | case NL80211_IFTYPE_MESH_POINT: | |
500 | beacon = ieee80211_beacon_get(hw, vif); | |
501 | if (beacon) { | |
502 | lbtf_beacon_set(priv, beacon); | |
503 | kfree_skb(beacon); | |
504 | lbtf_beacon_ctrl(priv, 1, | |
505 | bss_conf->beacon_int); | |
506 | } | |
507 | break; | |
508 | default: | |
509 | break; | |
510 | } | |
511 | } | |
512 | ||
513 | if (changes & BSS_CHANGED_BSSID) { | |
514 | bool activate = !is_zero_ether_addr(bss_conf->bssid); | |
515 | lbtf_set_bssid(priv, activate, bss_conf->bssid); | |
516 | } | |
06b16ae5 LCC |
517 | |
518 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
519 | if (bss_conf->use_short_preamble) | |
520 | priv->preamble = CMD_TYPE_SHORT_PREAMBLE; | |
521 | else | |
522 | priv->preamble = CMD_TYPE_LONG_PREAMBLE; | |
523 | lbtf_set_radio_control(priv); | |
524 | } | |
e9bd5bcd S |
525 | |
526 | lbtf_deb_leave(LBTF_DEB_MACOPS); | |
06b16ae5 LCC |
527 | } |
528 | ||
bef9cb58 JL |
529 | static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx, |
530 | struct survey_info *survey) | |
531 | { | |
532 | struct lbtf_private *priv = hw->priv; | |
533 | struct ieee80211_conf *conf = &hw->conf; | |
534 | ||
535 | if (idx != 0) | |
536 | return -ENOENT; | |
537 | ||
538 | survey->channel = conf->channel; | |
539 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
540 | survey->noise = priv->noise; | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
06b16ae5 LCC |
545 | static const struct ieee80211_ops lbtf_ops = { |
546 | .tx = lbtf_op_tx, | |
547 | .start = lbtf_op_start, | |
548 | .stop = lbtf_op_stop, | |
549 | .add_interface = lbtf_op_add_interface, | |
550 | .remove_interface = lbtf_op_remove_interface, | |
551 | .config = lbtf_op_config, | |
3ac64bee | 552 | .prepare_multicast = lbtf_op_prepare_multicast, |
06b16ae5 LCC |
553 | .configure_filter = lbtf_op_configure_filter, |
554 | .bss_info_changed = lbtf_op_bss_info_changed, | |
bef9cb58 | 555 | .get_survey = lbtf_op_get_survey, |
06b16ae5 LCC |
556 | }; |
557 | ||
558 | int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb) | |
559 | { | |
560 | struct ieee80211_rx_status stats; | |
561 | struct rxpd *prxpd; | |
de9cc7a4 | 562 | int need_padding; |
06b16ae5 | 563 | unsigned int flags; |
de9cc7a4 | 564 | struct ieee80211_hdr *hdr; |
06b16ae5 | 565 | |
e9bd5bcd S |
566 | lbtf_deb_enter(LBTF_DEB_RX); |
567 | ||
06b16ae5 LCC |
568 | prxpd = (struct rxpd *) skb->data; |
569 | ||
13deb23a | 570 | memset(&stats, 0, sizeof(stats)); |
06b16ae5 LCC |
571 | if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) |
572 | stats.flag |= RX_FLAG_FAILED_FCS_CRC; | |
573 | stats.freq = priv->cur_freq; | |
574 | stats.band = IEEE80211_BAND_2GHZ; | |
575 | stats.signal = prxpd->snr; | |
bef9cb58 | 576 | priv->noise = prxpd->nf; |
06b16ae5 LCC |
577 | /* Marvell rate index has a hole at value 4 */ |
578 | if (prxpd->rx_rate > 4) | |
579 | --prxpd->rx_rate; | |
580 | stats.rate_idx = prxpd->rx_rate; | |
581 | skb_pull(skb, sizeof(struct rxpd)); | |
582 | ||
de9cc7a4 | 583 | hdr = (struct ieee80211_hdr *)skb->data; |
06b16ae5 LCC |
584 | flags = le32_to_cpu(*(__le32 *)(skb->data + 4)); |
585 | ||
de9cc7a4 HH |
586 | need_padding = ieee80211_is_data_qos(hdr->frame_control); |
587 | need_padding ^= ieee80211_has_a4(hdr->frame_control); | |
588 | need_padding ^= ieee80211_is_data_qos(hdr->frame_control) && | |
589 | (*ieee80211_get_qos_ctl(hdr) & | |
04b7dcf9 | 590 | IEEE80211_QOS_CTL_A_MSDU_PRESENT); |
06b16ae5 | 591 | |
06b16ae5 LCC |
592 | if (need_padding) { |
593 | memmove(skb->data + 2, skb->data, skb->len); | |
594 | skb_reserve(skb, 2); | |
595 | } | |
596 | ||
f1d58c25 | 597 | memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats)); |
e9bd5bcd S |
598 | |
599 | lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n", | |
600 | skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd)); | |
601 | lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data, | |
602 | min_t(unsigned int, skb->len, 100)); | |
603 | ||
f1d58c25 | 604 | ieee80211_rx_irqsafe(priv->hw, skb); |
e9bd5bcd S |
605 | |
606 | lbtf_deb_leave(LBTF_DEB_RX); | |
06b16ae5 LCC |
607 | return 0; |
608 | } | |
609 | EXPORT_SYMBOL_GPL(lbtf_rx); | |
610 | ||
611 | /** | |
612 | * lbtf_add_card: Add and initialize the card, no fw upload yet. | |
613 | * | |
614 | * @card A pointer to card | |
615 | * | |
616 | * Returns: pointer to struct lbtf_priv. | |
617 | */ | |
618 | struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev) | |
619 | { | |
620 | struct ieee80211_hw *hw; | |
621 | struct lbtf_private *priv = NULL; | |
622 | ||
e9bd5bcd S |
623 | lbtf_deb_enter(LBTF_DEB_MAIN); |
624 | ||
06b16ae5 LCC |
625 | hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops); |
626 | if (!hw) | |
627 | goto done; | |
628 | ||
629 | priv = hw->priv; | |
630 | if (lbtf_init_adapter(priv)) | |
631 | goto err_init_adapter; | |
632 | ||
633 | priv->hw = hw; | |
634 | priv->card = card; | |
635 | priv->tx_skb = NULL; | |
636 | ||
637 | hw->queues = 1; | |
638 | hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; | |
639 | hw->extra_tx_headroom = sizeof(struct txpd); | |
640 | memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels)); | |
641 | memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates)); | |
642 | priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates); | |
643 | priv->band.bitrates = priv->rates; | |
644 | priv->band.n_channels = ARRAY_SIZE(lbtf_channels); | |
645 | priv->band.channels = priv->channels; | |
646 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
f3233831 DS |
647 | hw->wiphy->interface_modes = |
648 | BIT(NL80211_IFTYPE_STATION) | | |
649 | BIT(NL80211_IFTYPE_ADHOC); | |
06b16ae5 LCC |
650 | skb_queue_head_init(&priv->bc_ps_buf); |
651 | ||
652 | SET_IEEE80211_DEV(hw, dmdev); | |
653 | ||
654 | INIT_WORK(&priv->cmd_work, lbtf_cmd_work); | |
655 | INIT_WORK(&priv->tx_work, lbtf_tx_work); | |
656 | if (ieee80211_register_hw(hw)) | |
657 | goto err_init_adapter; | |
658 | ||
659 | goto done; | |
660 | ||
661 | err_init_adapter: | |
662 | lbtf_free_adapter(priv); | |
663 | ieee80211_free_hw(hw); | |
664 | priv = NULL; | |
665 | ||
666 | done: | |
e9bd5bcd | 667 | lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv); |
06b16ae5 LCC |
668 | return priv; |
669 | } | |
670 | EXPORT_SYMBOL_GPL(lbtf_add_card); | |
671 | ||
672 | ||
673 | int lbtf_remove_card(struct lbtf_private *priv) | |
674 | { | |
675 | struct ieee80211_hw *hw = priv->hw; | |
676 | ||
e9bd5bcd S |
677 | lbtf_deb_enter(LBTF_DEB_MAIN); |
678 | ||
06b16ae5 LCC |
679 | priv->surpriseremoved = 1; |
680 | del_timer(&priv->command_timer); | |
681 | lbtf_free_adapter(priv); | |
682 | priv->hw = NULL; | |
683 | ieee80211_unregister_hw(hw); | |
684 | ieee80211_free_hw(hw); | |
685 | ||
e9bd5bcd | 686 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
687 | return 0; |
688 | } | |
689 | EXPORT_SYMBOL_GPL(lbtf_remove_card); | |
690 | ||
691 | void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail) | |
692 | { | |
693 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); | |
e6a9854b JB |
694 | |
695 | ieee80211_tx_info_clear_status(info); | |
06b16ae5 LCC |
696 | /* |
697 | * Commented out, otherwise we never go beyond 1Mbit/s using mac80211 | |
698 | * default pid rc algorithm. | |
699 | * | |
700 | * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt; | |
701 | */ | |
06b16ae5 LCC |
702 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail) |
703 | info->flags |= IEEE80211_TX_STAT_ACK; | |
704 | skb_pull(priv->tx_skb, sizeof(struct txpd)); | |
705 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); | |
706 | priv->tx_skb = NULL; | |
707 | if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf)) | |
708 | ieee80211_wake_queues(priv->hw); | |
709 | else | |
710 | queue_work(lbtf_wq, &priv->tx_work); | |
711 | } | |
712 | EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback); | |
713 | ||
714 | void lbtf_bcn_sent(struct lbtf_private *priv) | |
715 | { | |
716 | struct sk_buff *skb = NULL; | |
717 | ||
05c914fe | 718 | if (priv->vif->type != NL80211_IFTYPE_AP) |
06b16ae5 LCC |
719 | return; |
720 | ||
721 | if (skb_queue_empty(&priv->bc_ps_buf)) { | |
722 | bool tx_buff_bc = 0; | |
723 | ||
724 | while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) { | |
725 | skb_queue_tail(&priv->bc_ps_buf, skb); | |
726 | tx_buff_bc = 1; | |
727 | } | |
728 | if (tx_buff_bc) { | |
729 | ieee80211_stop_queues(priv->hw); | |
730 | queue_work(lbtf_wq, &priv->tx_work); | |
731 | } | |
732 | } | |
733 | ||
734 | skb = ieee80211_beacon_get(priv->hw, priv->vif); | |
735 | ||
736 | if (skb) { | |
737 | lbtf_beacon_set(priv, skb); | |
738 | kfree_skb(skb); | |
739 | } | |
740 | } | |
741 | EXPORT_SYMBOL_GPL(lbtf_bcn_sent); | |
742 | ||
743 | static int __init lbtf_init_module(void) | |
744 | { | |
e9bd5bcd | 745 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 LCC |
746 | lbtf_wq = create_workqueue("libertastf"); |
747 | if (lbtf_wq == NULL) { | |
748 | printk(KERN_ERR "libertastf: couldn't create workqueue\n"); | |
749 | return -ENOMEM; | |
750 | } | |
e9bd5bcd | 751 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
752 | return 0; |
753 | } | |
754 | ||
755 | static void __exit lbtf_exit_module(void) | |
756 | { | |
e9bd5bcd | 757 | lbtf_deb_enter(LBTF_DEB_MAIN); |
06b16ae5 | 758 | destroy_workqueue(lbtf_wq); |
e9bd5bcd | 759 | lbtf_deb_leave(LBTF_DEB_MAIN); |
06b16ae5 LCC |
760 | } |
761 | ||
762 | module_init(lbtf_init_module); | |
763 | module_exit(lbtf_exit_module); | |
764 | ||
765 | MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library"); | |
766 | MODULE_AUTHOR("Cozybit Inc."); | |
767 | MODULE_LICENSE("GPL"); |