Commit | Line | Data |
---|---|---|
a66098da | 1 | /* |
ce9e2e1b LB |
2 | * drivers/net/wireless/mwl8k.c |
3 | * Driver for Marvell TOPDOG 802.11 Wireless cards | |
a66098da | 4 | * |
a5fb297d | 5 | * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc. |
a66098da LB |
6 | * |
7 | * This file is licensed under the terms of the GNU General Public | |
8 | * License version 2. This program is licensed "as is" without any | |
9 | * warranty of any kind, whether express or implied. | |
10 | */ | |
11 | ||
12 | #include <linux/init.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/kernel.h> | |
3d76e82c | 15 | #include <linux/sched.h> |
a66098da LB |
16 | #include <linux/spinlock.h> |
17 | #include <linux/list.h> | |
18 | #include <linux/pci.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/completion.h> | |
21 | #include <linux/etherdevice.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
a66098da LB |
23 | #include <net/mac80211.h> |
24 | #include <linux/moduleparam.h> | |
25 | #include <linux/firmware.h> | |
26 | #include <linux/workqueue.h> | |
27 | ||
28 | #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" | |
29 | #define MWL8K_NAME KBUILD_MODNAME | |
a5fb297d | 30 | #define MWL8K_VERSION "0.12" |
a66098da | 31 | |
0863ade8 BC |
32 | /* Module parameters */ |
33 | static unsigned ap_mode_default; | |
34 | module_param(ap_mode_default, bool, 0); | |
35 | MODULE_PARM_DESC(ap_mode_default, | |
36 | "Set to 1 to make ap mode the default instead of sta mode"); | |
37 | ||
a66098da LB |
38 | /* Register definitions */ |
39 | #define MWL8K_HIU_GEN_PTR 0x00000c10 | |
ce9e2e1b LB |
40 | #define MWL8K_MODE_STA 0x0000005a |
41 | #define MWL8K_MODE_AP 0x000000a5 | |
a66098da | 42 | #define MWL8K_HIU_INT_CODE 0x00000c14 |
ce9e2e1b LB |
43 | #define MWL8K_FWSTA_READY 0xf0f1f2f4 |
44 | #define MWL8K_FWAP_READY 0xf1f2f4a5 | |
45 | #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 | |
a66098da LB |
46 | #define MWL8K_HIU_SCRATCH 0x00000c40 |
47 | ||
48 | /* Host->device communications */ | |
49 | #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 | |
50 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c | |
51 | #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 | |
52 | #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 | |
53 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 | |
ce9e2e1b LB |
54 | #define MWL8K_H2A_INT_DUMMY (1 << 20) |
55 | #define MWL8K_H2A_INT_RESET (1 << 15) | |
56 | #define MWL8K_H2A_INT_DOORBELL (1 << 1) | |
57 | #define MWL8K_H2A_INT_PPA_READY (1 << 0) | |
a66098da LB |
58 | |
59 | /* Device->host communications */ | |
60 | #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c | |
61 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 | |
62 | #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 | |
63 | #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 | |
64 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c | |
ce9e2e1b | 65 | #define MWL8K_A2H_INT_DUMMY (1 << 20) |
3aefc37e | 66 | #define MWL8K_A2H_INT_BA_WATCHDOG (1 << 14) |
ce9e2e1b LB |
67 | #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) |
68 | #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) | |
69 | #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) | |
70 | #define MWL8K_A2H_INT_RADIO_ON (1 << 6) | |
71 | #define MWL8K_A2H_INT_RADIO_OFF (1 << 5) | |
72 | #define MWL8K_A2H_INT_MAC_EVENT (1 << 3) | |
73 | #define MWL8K_A2H_INT_OPC_DONE (1 << 2) | |
74 | #define MWL8K_A2H_INT_RX_READY (1 << 1) | |
75 | #define MWL8K_A2H_INT_TX_DONE (1 << 0) | |
a66098da LB |
76 | |
77 | #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ | |
78 | MWL8K_A2H_INT_CHNL_SWITCHED | \ | |
79 | MWL8K_A2H_INT_QUEUE_EMPTY | \ | |
80 | MWL8K_A2H_INT_RADAR_DETECT | \ | |
81 | MWL8K_A2H_INT_RADIO_ON | \ | |
82 | MWL8K_A2H_INT_RADIO_OFF | \ | |
83 | MWL8K_A2H_INT_MAC_EVENT | \ | |
84 | MWL8K_A2H_INT_OPC_DONE | \ | |
85 | MWL8K_A2H_INT_RX_READY | \ | |
3aefc37e NS |
86 | MWL8K_A2H_INT_TX_DONE | \ |
87 | MWL8K_A2H_INT_BA_WATCHDOG) | |
a66098da | 88 | |
a66098da | 89 | #define MWL8K_RX_QUEUES 1 |
e600707b | 90 | #define MWL8K_TX_WMM_QUEUES 4 |
8a7a578c | 91 | #define MWL8K_MAX_AMPDU_QUEUES 8 |
e600707b BC |
92 | #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES) |
93 | #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues) | |
a66098da | 94 | |
54bc3a0d LB |
95 | struct rxd_ops { |
96 | int rxd_size; | |
97 | void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr); | |
98 | void (*rxd_refill)(void *rxd, dma_addr_t addr, int len); | |
20f09c3d | 99 | int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status, |
0d462bbb | 100 | __le16 *qos, s8 *noise); |
54bc3a0d LB |
101 | }; |
102 | ||
45a390dd | 103 | struct mwl8k_device_info { |
a74b295e LB |
104 | char *part_name; |
105 | char *helper_image; | |
0863ade8 BC |
106 | char *fw_image_sta; |
107 | char *fw_image_ap; | |
89a91f4f | 108 | struct rxd_ops *ap_rxd_ops; |
952a0e96 | 109 | u32 fw_api_ap; |
45a390dd LB |
110 | }; |
111 | ||
a66098da | 112 | struct mwl8k_rx_queue { |
45eb400d | 113 | int rxd_count; |
a66098da LB |
114 | |
115 | /* hw receives here */ | |
45eb400d | 116 | int head; |
a66098da LB |
117 | |
118 | /* refill descs here */ | |
45eb400d | 119 | int tail; |
a66098da | 120 | |
54bc3a0d | 121 | void *rxd; |
45eb400d | 122 | dma_addr_t rxd_dma; |
788838eb LB |
123 | struct { |
124 | struct sk_buff *skb; | |
53b1b3e1 | 125 | DEFINE_DMA_UNMAP_ADDR(dma); |
788838eb | 126 | } *buf; |
a66098da LB |
127 | }; |
128 | ||
a66098da LB |
129 | struct mwl8k_tx_queue { |
130 | /* hw transmits here */ | |
45eb400d | 131 | int head; |
a66098da LB |
132 | |
133 | /* sw appends here */ | |
45eb400d | 134 | int tail; |
a66098da | 135 | |
8ccbc3b8 | 136 | unsigned int len; |
45eb400d LB |
137 | struct mwl8k_tx_desc *txd; |
138 | dma_addr_t txd_dma; | |
139 | struct sk_buff **skb; | |
a66098da LB |
140 | }; |
141 | ||
ac109fd0 BC |
142 | enum { |
143 | AMPDU_NO_STREAM, | |
144 | AMPDU_STREAM_NEW, | |
145 | AMPDU_STREAM_IN_PROGRESS, | |
146 | AMPDU_STREAM_ACTIVE, | |
147 | }; | |
148 | ||
5faa1aff NS |
149 | struct mwl8k_ampdu_stream { |
150 | struct ieee80211_sta *sta; | |
151 | u8 tid; | |
152 | u8 state; | |
153 | u8 idx; | |
154 | u8 txq_idx; /* index of this stream in priv->txq */ | |
155 | }; | |
156 | ||
a66098da | 157 | struct mwl8k_priv { |
a66098da | 158 | struct ieee80211_hw *hw; |
a66098da | 159 | struct pci_dev *pdev; |
a66098da | 160 | |
45a390dd LB |
161 | struct mwl8k_device_info *device_info; |
162 | ||
be695fc4 LB |
163 | void __iomem *sram; |
164 | void __iomem *regs; | |
165 | ||
166 | /* firmware */ | |
d1f9e41d BC |
167 | const struct firmware *fw_helper; |
168 | const struct firmware *fw_ucode; | |
a66098da | 169 | |
be695fc4 LB |
170 | /* hardware/firmware parameters */ |
171 | bool ap_fw; | |
172 | struct rxd_ops *rxd_ops; | |
777ad375 LB |
173 | struct ieee80211_supported_band band_24; |
174 | struct ieee80211_channel channels_24[14]; | |
175 | struct ieee80211_rate rates_24[14]; | |
4eae9edd LB |
176 | struct ieee80211_supported_band band_50; |
177 | struct ieee80211_channel channels_50[4]; | |
178 | struct ieee80211_rate rates_50[9]; | |
ee0ddf18 LB |
179 | u32 ap_macids_supported; |
180 | u32 sta_macids_supported; | |
be695fc4 | 181 | |
8a7a578c BC |
182 | /* Ampdu stream information */ |
183 | u8 num_ampdu_queues; | |
ac109fd0 BC |
184 | spinlock_t stream_lock; |
185 | struct mwl8k_ampdu_stream ampdu[MWL8K_MAX_AMPDU_QUEUES]; | |
3aefc37e | 186 | struct work_struct watchdog_ba_handle; |
8a7a578c | 187 | |
618952a7 LB |
188 | /* firmware access */ |
189 | struct mutex fw_mutex; | |
190 | struct task_struct *fw_mutex_owner; | |
191 | int fw_mutex_depth; | |
618952a7 LB |
192 | struct completion *hostcmd_wait; |
193 | ||
a66098da LB |
194 | /* lock held over TX and TX reap */ |
195 | spinlock_t tx_lock; | |
a66098da | 196 | |
88de754a LB |
197 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
198 | struct completion *tx_wait; | |
199 | ||
f5bb87cf | 200 | /* List of interfaces. */ |
ee0ddf18 | 201 | u32 macids_used; |
f5bb87cf | 202 | struct list_head vif_list; |
a66098da | 203 | |
a66098da LB |
204 | /* power management status cookie from firmware */ |
205 | u32 *cookie; | |
206 | dma_addr_t cookie_dma; | |
207 | ||
208 | u16 num_mcaddrs; | |
a66098da | 209 | u8 hw_rev; |
2aa7b01f | 210 | u32 fw_rev; |
a66098da LB |
211 | |
212 | /* | |
213 | * Running count of TX packets in flight, to avoid | |
214 | * iterating over the transmit rings each time. | |
215 | */ | |
216 | int pending_tx_pkts; | |
217 | ||
218 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
e600707b BC |
219 | struct mwl8k_tx_queue txq[MWL8K_MAX_TX_QUEUES]; |
220 | u32 txq_offset[MWL8K_MAX_TX_QUEUES]; | |
a66098da | 221 | |
c46563b7 | 222 | bool radio_on; |
68ce3884 | 223 | bool radio_short_preamble; |
a43c49a8 | 224 | bool sniffer_enabled; |
0439b1f5 | 225 | bool wmm_enabled; |
a66098da | 226 | |
a66098da LB |
227 | /* XXX need to convert this to handle multiple interfaces */ |
228 | bool capture_beacon; | |
d89173f2 | 229 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
230 | struct sk_buff *beacon_skb; |
231 | ||
232 | /* | |
233 | * This FJ worker has to be global as it is scheduled from the | |
234 | * RX handler. At this point we don't know which interface it | |
235 | * belongs to until the list of bssids waiting to complete join | |
236 | * is checked. | |
237 | */ | |
238 | struct work_struct finalize_join_worker; | |
239 | ||
1e9f9de3 LB |
240 | /* Tasklet to perform TX reclaim. */ |
241 | struct tasklet_struct poll_tx_task; | |
67e2eb27 LB |
242 | |
243 | /* Tasklet to perform RX. */ | |
244 | struct tasklet_struct poll_rx_task; | |
0d462bbb JL |
245 | |
246 | /* Most recently reported noise in dBm */ | |
247 | s8 noise; | |
0863ade8 BC |
248 | |
249 | /* | |
250 | * preserve the queue configurations so they can be restored if/when | |
251 | * the firmware image is swapped. | |
252 | */ | |
e600707b | 253 | struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_WMM_QUEUES]; |
99020471 BC |
254 | |
255 | /* async firmware loading state */ | |
256 | unsigned fw_state; | |
257 | char *fw_pref; | |
258 | char *fw_alt; | |
259 | struct completion firmware_loading_complete; | |
a66098da LB |
260 | }; |
261 | ||
e53d9b96 NS |
262 | #define MAX_WEP_KEY_LEN 13 |
263 | #define NUM_WEP_KEYS 4 | |
264 | ||
a66098da LB |
265 | /* Per interface specific private data */ |
266 | struct mwl8k_vif { | |
f5bb87cf LB |
267 | struct list_head list; |
268 | struct ieee80211_vif *vif; | |
269 | ||
f57ca9c1 LB |
270 | /* Firmware macid for this vif. */ |
271 | int macid; | |
272 | ||
c2c2b12a | 273 | /* Non AMPDU sequence number assigned by driver. */ |
a680400e | 274 | u16 seqno; |
e53d9b96 NS |
275 | |
276 | /* Saved WEP keys */ | |
277 | struct { | |
278 | u8 enabled; | |
279 | u8 key[sizeof(struct ieee80211_key_conf) + MAX_WEP_KEY_LEN]; | |
280 | } wep_key_conf[NUM_WEP_KEYS]; | |
d9a07d49 NS |
281 | |
282 | /* BSSID */ | |
283 | u8 bssid[ETH_ALEN]; | |
284 | ||
285 | /* A flag to indicate is HW crypto is enabled for this bssid */ | |
286 | bool is_hw_crypto_enabled; | |
a66098da | 287 | }; |
a94cc97e | 288 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
fcdc403c | 289 | #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8)) |
a66098da | 290 | |
a680400e LB |
291 | struct mwl8k_sta { |
292 | /* Index into station database. Returned by UPDATE_STADB. */ | |
293 | u8 peer_id; | |
17033543 | 294 | u8 is_ampdu_allowed; |
a680400e LB |
295 | }; |
296 | #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv)) | |
297 | ||
777ad375 | 298 | static const struct ieee80211_channel mwl8k_channels_24[] = { |
a66098da LB |
299 | { .center_freq = 2412, .hw_value = 1, }, |
300 | { .center_freq = 2417, .hw_value = 2, }, | |
301 | { .center_freq = 2422, .hw_value = 3, }, | |
302 | { .center_freq = 2427, .hw_value = 4, }, | |
303 | { .center_freq = 2432, .hw_value = 5, }, | |
304 | { .center_freq = 2437, .hw_value = 6, }, | |
305 | { .center_freq = 2442, .hw_value = 7, }, | |
306 | { .center_freq = 2447, .hw_value = 8, }, | |
307 | { .center_freq = 2452, .hw_value = 9, }, | |
308 | { .center_freq = 2457, .hw_value = 10, }, | |
309 | { .center_freq = 2462, .hw_value = 11, }, | |
647ca6b0 LB |
310 | { .center_freq = 2467, .hw_value = 12, }, |
311 | { .center_freq = 2472, .hw_value = 13, }, | |
312 | { .center_freq = 2484, .hw_value = 14, }, | |
a66098da LB |
313 | }; |
314 | ||
777ad375 | 315 | static const struct ieee80211_rate mwl8k_rates_24[] = { |
a66098da LB |
316 | { .bitrate = 10, .hw_value = 2, }, |
317 | { .bitrate = 20, .hw_value = 4, }, | |
318 | { .bitrate = 55, .hw_value = 11, }, | |
5dfd3e2c LB |
319 | { .bitrate = 110, .hw_value = 22, }, |
320 | { .bitrate = 220, .hw_value = 44, }, | |
a66098da LB |
321 | { .bitrate = 60, .hw_value = 12, }, |
322 | { .bitrate = 90, .hw_value = 18, }, | |
a66098da LB |
323 | { .bitrate = 120, .hw_value = 24, }, |
324 | { .bitrate = 180, .hw_value = 36, }, | |
325 | { .bitrate = 240, .hw_value = 48, }, | |
326 | { .bitrate = 360, .hw_value = 72, }, | |
327 | { .bitrate = 480, .hw_value = 96, }, | |
328 | { .bitrate = 540, .hw_value = 108, }, | |
140eb5e2 LB |
329 | { .bitrate = 720, .hw_value = 144, }, |
330 | }; | |
331 | ||
4eae9edd LB |
332 | static const struct ieee80211_channel mwl8k_channels_50[] = { |
333 | { .center_freq = 5180, .hw_value = 36, }, | |
334 | { .center_freq = 5200, .hw_value = 40, }, | |
335 | { .center_freq = 5220, .hw_value = 44, }, | |
336 | { .center_freq = 5240, .hw_value = 48, }, | |
337 | }; | |
338 | ||
339 | static const struct ieee80211_rate mwl8k_rates_50[] = { | |
340 | { .bitrate = 60, .hw_value = 12, }, | |
341 | { .bitrate = 90, .hw_value = 18, }, | |
342 | { .bitrate = 120, .hw_value = 24, }, | |
343 | { .bitrate = 180, .hw_value = 36, }, | |
344 | { .bitrate = 240, .hw_value = 48, }, | |
345 | { .bitrate = 360, .hw_value = 72, }, | |
346 | { .bitrate = 480, .hw_value = 96, }, | |
347 | { .bitrate = 540, .hw_value = 108, }, | |
348 | { .bitrate = 720, .hw_value = 144, }, | |
349 | }; | |
350 | ||
a66098da | 351 | /* Set or get info from Firmware */ |
a66098da | 352 | #define MWL8K_CMD_GET 0x0000 |
41fdf097 NS |
353 | #define MWL8K_CMD_SET 0x0001 |
354 | #define MWL8K_CMD_SET_LIST 0x0002 | |
a66098da LB |
355 | |
356 | /* Firmware command codes */ | |
357 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
358 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
42fba21d | 359 | #define MWL8K_CMD_SET_HW_SPEC 0x0004 |
a66098da LB |
360 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 |
361 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
362 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
363 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
41fdf097 | 364 | #define MWL8K_CMD_TX_POWER 0x001f |
08b06347 | 365 | #define MWL8K_CMD_RF_ANTENNA 0x0020 |
aa21d0f6 | 366 | #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */ |
a66098da LB |
367 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
368 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
369 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
370 | #define MWL8K_CMD_SET_AID 0x010d | |
371 | #define MWL8K_CMD_SET_RATE 0x0110 | |
372 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
373 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 374 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
375 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
376 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 377 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 378 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 379 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
aa21d0f6 | 380 | #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */ |
a66098da | 381 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
3aefc37e | 382 | #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205 |
aa21d0f6 LB |
383 | #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */ |
384 | #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */ | |
fcdc403c | 385 | #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */ |
ff45fc60 | 386 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
5faa1aff | 387 | #define MWL8K_CMD_BASTREAM 0x1125 |
a66098da | 388 | |
b603742f | 389 | static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize) |
a66098da | 390 | { |
b603742f JL |
391 | u16 command = le16_to_cpu(cmd); |
392 | ||
a66098da LB |
393 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ |
394 | snprintf(buf, bufsize, "%s", #x);\ | |
395 | return buf;\ | |
396 | } while (0) | |
b603742f | 397 | switch (command & ~0x8000) { |
a66098da LB |
398 | MWL8K_CMDNAME(CODE_DNLD); |
399 | MWL8K_CMDNAME(GET_HW_SPEC); | |
42fba21d | 400 | MWL8K_CMDNAME(SET_HW_SPEC); |
a66098da LB |
401 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); |
402 | MWL8K_CMDNAME(GET_STAT); | |
403 | MWL8K_CMDNAME(RADIO_CONTROL); | |
404 | MWL8K_CMDNAME(RF_TX_POWER); | |
41fdf097 | 405 | MWL8K_CMDNAME(TX_POWER); |
08b06347 | 406 | MWL8K_CMDNAME(RF_ANTENNA); |
b64fe619 | 407 | MWL8K_CMDNAME(SET_BEACON); |
a66098da LB |
408 | MWL8K_CMDNAME(SET_PRE_SCAN); |
409 | MWL8K_CMDNAME(SET_POST_SCAN); | |
410 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
411 | MWL8K_CMDNAME(SET_AID); |
412 | MWL8K_CMDNAME(SET_RATE); | |
413 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
414 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 415 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
416 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
417 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 418 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 419 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 420 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
32060e1b | 421 | MWL8K_CMDNAME(SET_MAC_ADDR); |
a66098da | 422 | MWL8K_CMDNAME(SET_RATEADAPT_MODE); |
b64fe619 | 423 | MWL8K_CMDNAME(BSS_START); |
3f5610ff | 424 | MWL8K_CMDNAME(SET_NEW_STN); |
fcdc403c | 425 | MWL8K_CMDNAME(UPDATE_ENCRYPTION); |
ff45fc60 | 426 | MWL8K_CMDNAME(UPDATE_STADB); |
5faa1aff | 427 | MWL8K_CMDNAME(BASTREAM); |
3aefc37e | 428 | MWL8K_CMDNAME(GET_WATCHDOG_BITMAP); |
a66098da LB |
429 | default: |
430 | snprintf(buf, bufsize, "0x%x", cmd); | |
431 | } | |
432 | #undef MWL8K_CMDNAME | |
433 | ||
434 | return buf; | |
435 | } | |
436 | ||
437 | /* Hardware and firmware reset */ | |
438 | static void mwl8k_hw_reset(struct mwl8k_priv *priv) | |
439 | { | |
440 | iowrite32(MWL8K_H2A_INT_RESET, | |
441 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
442 | iowrite32(MWL8K_H2A_INT_RESET, | |
443 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
444 | msleep(20); | |
445 | } | |
446 | ||
447 | /* Release fw image */ | |
d1f9e41d | 448 | static void mwl8k_release_fw(const struct firmware **fw) |
a66098da LB |
449 | { |
450 | if (*fw == NULL) | |
451 | return; | |
452 | release_firmware(*fw); | |
453 | *fw = NULL; | |
454 | } | |
455 | ||
456 | static void mwl8k_release_firmware(struct mwl8k_priv *priv) | |
457 | { | |
22be40d9 LB |
458 | mwl8k_release_fw(&priv->fw_ucode); |
459 | mwl8k_release_fw(&priv->fw_helper); | |
a66098da LB |
460 | } |
461 | ||
99020471 BC |
462 | /* states for asynchronous f/w loading */ |
463 | static void mwl8k_fw_state_machine(const struct firmware *fw, void *context); | |
464 | enum { | |
465 | FW_STATE_INIT = 0, | |
466 | FW_STATE_LOADING_PREF, | |
467 | FW_STATE_LOADING_ALT, | |
468 | FW_STATE_ERROR, | |
469 | }; | |
470 | ||
a66098da LB |
471 | /* Request fw image */ |
472 | static int mwl8k_request_fw(struct mwl8k_priv *priv, | |
d1f9e41d | 473 | const char *fname, const struct firmware **fw, |
99020471 | 474 | bool nowait) |
a66098da LB |
475 | { |
476 | /* release current image */ | |
477 | if (*fw != NULL) | |
478 | mwl8k_release_fw(fw); | |
479 | ||
99020471 BC |
480 | if (nowait) |
481 | return request_firmware_nowait(THIS_MODULE, 1, fname, | |
482 | &priv->pdev->dev, GFP_KERNEL, | |
483 | priv, mwl8k_fw_state_machine); | |
484 | else | |
d1f9e41d | 485 | return request_firmware(fw, fname, &priv->pdev->dev); |
a66098da LB |
486 | } |
487 | ||
99020471 BC |
488 | static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image, |
489 | bool nowait) | |
a66098da | 490 | { |
a74b295e | 491 | struct mwl8k_device_info *di = priv->device_info; |
a66098da LB |
492 | int rc; |
493 | ||
a74b295e | 494 | if (di->helper_image != NULL) { |
99020471 BC |
495 | if (nowait) |
496 | rc = mwl8k_request_fw(priv, di->helper_image, | |
497 | &priv->fw_helper, true); | |
498 | else | |
499 | rc = mwl8k_request_fw(priv, di->helper_image, | |
500 | &priv->fw_helper, false); | |
501 | if (rc) | |
502 | printk(KERN_ERR "%s: Error requesting helper fw %s\n", | |
503 | pci_name(priv->pdev), di->helper_image); | |
504 | ||
505 | if (rc || nowait) | |
a74b295e | 506 | return rc; |
a66098da LB |
507 | } |
508 | ||
99020471 BC |
509 | if (nowait) { |
510 | /* | |
511 | * if we get here, no helper image is needed. Skip the | |
512 | * FW_STATE_INIT state. | |
513 | */ | |
514 | priv->fw_state = FW_STATE_LOADING_PREF; | |
515 | rc = mwl8k_request_fw(priv, fw_image, | |
516 | &priv->fw_ucode, | |
517 | true); | |
518 | } else | |
519 | rc = mwl8k_request_fw(priv, fw_image, | |
520 | &priv->fw_ucode, false); | |
a66098da | 521 | if (rc) { |
c2c357ce | 522 | printk(KERN_ERR "%s: Error requesting firmware file %s\n", |
0863ade8 | 523 | pci_name(priv->pdev), fw_image); |
22be40d9 | 524 | mwl8k_release_fw(&priv->fw_helper); |
a66098da LB |
525 | return rc; |
526 | } | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | struct mwl8k_cmd_pkt { | |
532 | __le16 code; | |
533 | __le16 length; | |
f57ca9c1 LB |
534 | __u8 seq_num; |
535 | __u8 macid; | |
a66098da LB |
536 | __le16 result; |
537 | char payload[0]; | |
ba2d3587 | 538 | } __packed; |
a66098da LB |
539 | |
540 | /* | |
541 | * Firmware loading. | |
542 | */ | |
543 | static int | |
544 | mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) | |
545 | { | |
546 | void __iomem *regs = priv->regs; | |
547 | dma_addr_t dma_addr; | |
a66098da LB |
548 | int loops; |
549 | ||
550 | dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); | |
551 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
552 | return -ENOMEM; | |
553 | ||
554 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
555 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
556 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
557 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
558 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
559 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
560 | ||
a66098da LB |
561 | loops = 1000; |
562 | do { | |
563 | u32 int_code; | |
564 | ||
565 | int_code = ioread32(regs + MWL8K_HIU_INT_CODE); | |
566 | if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { | |
567 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
a66098da LB |
568 | break; |
569 | } | |
570 | ||
3d76e82c | 571 | cond_resched(); |
a66098da LB |
572 | udelay(1); |
573 | } while (--loops); | |
574 | ||
575 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
576 | ||
d4b70570 | 577 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
578 | } |
579 | ||
580 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
581 | const u8 *data, size_t length) | |
582 | { | |
583 | struct mwl8k_cmd_pkt *cmd; | |
584 | int done; | |
585 | int rc = 0; | |
586 | ||
587 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
588 | if (cmd == NULL) | |
589 | return -ENOMEM; | |
590 | ||
591 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
592 | cmd->seq_num = 0; | |
f57ca9c1 | 593 | cmd->macid = 0; |
a66098da LB |
594 | cmd->result = 0; |
595 | ||
596 | done = 0; | |
597 | while (length) { | |
598 | int block_size = length > 256 ? 256 : length; | |
599 | ||
600 | memcpy(cmd->payload, data + done, block_size); | |
601 | cmd->length = cpu_to_le16(block_size); | |
602 | ||
603 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
604 | sizeof(*cmd) + block_size); | |
605 | if (rc) | |
606 | break; | |
607 | ||
608 | done += block_size; | |
609 | length -= block_size; | |
610 | } | |
611 | ||
612 | if (!rc) { | |
613 | cmd->length = 0; | |
614 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
615 | } | |
616 | ||
617 | kfree(cmd); | |
618 | ||
619 | return rc; | |
620 | } | |
621 | ||
622 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
623 | const u8 *data, size_t length) | |
624 | { | |
625 | unsigned char *buffer; | |
626 | int may_continue, rc = 0; | |
627 | u32 done, prev_block_size; | |
628 | ||
629 | buffer = kmalloc(1024, GFP_KERNEL); | |
630 | if (buffer == NULL) | |
631 | return -ENOMEM; | |
632 | ||
633 | done = 0; | |
634 | prev_block_size = 0; | |
635 | may_continue = 1000; | |
636 | while (may_continue > 0) { | |
637 | u32 block_size; | |
638 | ||
639 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
640 | if (block_size & 1) { | |
641 | block_size &= ~1; | |
642 | may_continue--; | |
643 | } else { | |
644 | done += prev_block_size; | |
645 | length -= prev_block_size; | |
646 | } | |
647 | ||
648 | if (block_size > 1024 || block_size > length) { | |
649 | rc = -EOVERFLOW; | |
650 | break; | |
651 | } | |
652 | ||
653 | if (length == 0) { | |
654 | rc = 0; | |
655 | break; | |
656 | } | |
657 | ||
658 | if (block_size == 0) { | |
659 | rc = -EPROTO; | |
660 | may_continue--; | |
661 | udelay(1); | |
662 | continue; | |
663 | } | |
664 | ||
665 | prev_block_size = block_size; | |
666 | memcpy(buffer, data + done, block_size); | |
667 | ||
668 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
669 | if (rc) | |
670 | break; | |
671 | } | |
672 | ||
673 | if (!rc && length != 0) | |
674 | rc = -EREMOTEIO; | |
675 | ||
676 | kfree(buffer); | |
677 | ||
678 | return rc; | |
679 | } | |
680 | ||
c2c357ce | 681 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 682 | { |
c2c357ce | 683 | struct mwl8k_priv *priv = hw->priv; |
d1f9e41d | 684 | const struct firmware *fw = priv->fw_ucode; |
c2c357ce LB |
685 | int rc; |
686 | int loops; | |
687 | ||
688 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
d1f9e41d | 689 | const struct firmware *helper = priv->fw_helper; |
a66098da | 690 | |
c2c357ce LB |
691 | if (helper == NULL) { |
692 | printk(KERN_ERR "%s: helper image needed but none " | |
693 | "given\n", pci_name(priv->pdev)); | |
694 | return -EINVAL; | |
695 | } | |
a66098da | 696 | |
c2c357ce | 697 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
698 | if (rc) { |
699 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 700 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
701 | return rc; |
702 | } | |
89b872e2 | 703 | msleep(5); |
a66098da | 704 | |
c2c357ce | 705 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 706 | } else { |
c2c357ce | 707 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
708 | } |
709 | ||
710 | if (rc) { | |
c2c357ce LB |
711 | printk(KERN_ERR "%s: unable to load firmware image\n", |
712 | pci_name(priv->pdev)); | |
a66098da LB |
713 | return rc; |
714 | } | |
715 | ||
89a91f4f | 716 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); |
a66098da | 717 | |
89b872e2 | 718 | loops = 500000; |
a66098da | 719 | do { |
eae74e65 LB |
720 | u32 ready_code; |
721 | ||
722 | ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
723 | if (ready_code == MWL8K_FWAP_READY) { | |
724 | priv->ap_fw = 1; | |
725 | break; | |
726 | } else if (ready_code == MWL8K_FWSTA_READY) { | |
727 | priv->ap_fw = 0; | |
a66098da | 728 | break; |
eae74e65 LB |
729 | } |
730 | ||
731 | cond_resched(); | |
a66098da LB |
732 | udelay(1); |
733 | } while (--loops); | |
734 | ||
735 | return loops ? 0 : -ETIMEDOUT; | |
736 | } | |
737 | ||
738 | ||
a66098da LB |
739 | /* DMA header used by firmware and hardware. */ |
740 | struct mwl8k_dma_data { | |
741 | __le16 fwlen; | |
742 | struct ieee80211_hdr wh; | |
20f09c3d | 743 | char data[0]; |
ba2d3587 | 744 | } __packed; |
a66098da LB |
745 | |
746 | /* Routines to add/remove DMA header from skb. */ | |
20f09c3d | 747 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos) |
a66098da | 748 | { |
20f09c3d LB |
749 | struct mwl8k_dma_data *tr; |
750 | int hdrlen; | |
751 | ||
752 | tr = (struct mwl8k_dma_data *)skb->data; | |
753 | hdrlen = ieee80211_hdrlen(tr->wh.frame_control); | |
754 | ||
755 | if (hdrlen != sizeof(tr->wh)) { | |
756 | if (ieee80211_is_data_qos(tr->wh.frame_control)) { | |
757 | memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2); | |
758 | *((__le16 *)(tr->data - 2)) = qos; | |
759 | } else { | |
760 | memmove(tr->data - hdrlen, &tr->wh, hdrlen); | |
761 | } | |
a66098da | 762 | } |
20f09c3d LB |
763 | |
764 | if (hdrlen != sizeof(*tr)) | |
765 | skb_pull(skb, sizeof(*tr) - hdrlen); | |
a66098da LB |
766 | } |
767 | ||
252486a1 NS |
768 | static void |
769 | mwl8k_add_dma_header(struct sk_buff *skb, int tail_pad) | |
a66098da LB |
770 | { |
771 | struct ieee80211_hdr *wh; | |
ca009301 | 772 | int hdrlen; |
252486a1 | 773 | int reqd_hdrlen; |
a66098da LB |
774 | struct mwl8k_dma_data *tr; |
775 | ||
ca009301 LB |
776 | /* |
777 | * Add a firmware DMA header; the firmware requires that we | |
778 | * present a 2-byte payload length followed by a 4-address | |
779 | * header (without QoS field), followed (optionally) by any | |
780 | * WEP/ExtIV header (but only filled in for CCMP). | |
781 | */ | |
a66098da | 782 | wh = (struct ieee80211_hdr *)skb->data; |
ca009301 | 783 | |
a66098da | 784 | hdrlen = ieee80211_hdrlen(wh->frame_control); |
252486a1 NS |
785 | reqd_hdrlen = sizeof(*tr); |
786 | ||
787 | if (hdrlen != reqd_hdrlen) | |
788 | skb_push(skb, reqd_hdrlen - hdrlen); | |
a66098da | 789 | |
ca009301 | 790 | if (ieee80211_is_data_qos(wh->frame_control)) |
252486a1 | 791 | hdrlen -= IEEE80211_QOS_CTL_LEN; |
a66098da LB |
792 | |
793 | tr = (struct mwl8k_dma_data *)skb->data; | |
794 | if (wh != &tr->wh) | |
795 | memmove(&tr->wh, wh, hdrlen); | |
ca009301 LB |
796 | if (hdrlen != sizeof(tr->wh)) |
797 | memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen); | |
a66098da LB |
798 | |
799 | /* | |
800 | * Firmware length is the length of the fully formed "802.11 | |
801 | * payload". That is, everything except for the 802.11 header. | |
802 | * This includes all crypto material including the MIC. | |
803 | */ | |
252486a1 | 804 | tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr) + tail_pad); |
a66098da LB |
805 | } |
806 | ||
e53d9b96 NS |
807 | static void mwl8k_encapsulate_tx_frame(struct sk_buff *skb) |
808 | { | |
809 | struct ieee80211_hdr *wh; | |
810 | struct ieee80211_tx_info *tx_info; | |
811 | struct ieee80211_key_conf *key_conf; | |
812 | int data_pad; | |
813 | ||
814 | wh = (struct ieee80211_hdr *)skb->data; | |
815 | ||
816 | tx_info = IEEE80211_SKB_CB(skb); | |
817 | ||
818 | key_conf = NULL; | |
819 | if (ieee80211_is_data(wh->frame_control)) | |
820 | key_conf = tx_info->control.hw_key; | |
821 | ||
822 | /* | |
823 | * Make sure the packet header is in the DMA header format (4-address | |
824 | * without QoS), the necessary crypto padding between the header and the | |
825 | * payload has already been provided by mac80211, but it doesn't add tail | |
826 | * padding when HW crypto is enabled. | |
827 | * | |
828 | * We have the following trailer padding requirements: | |
829 | * - WEP: 4 trailer bytes (ICV) | |
830 | * - TKIP: 12 trailer bytes (8 MIC + 4 ICV) | |
831 | * - CCMP: 8 trailer bytes (MIC) | |
832 | */ | |
833 | data_pad = 0; | |
834 | if (key_conf != NULL) { | |
835 | switch (key_conf->cipher) { | |
836 | case WLAN_CIPHER_SUITE_WEP40: | |
837 | case WLAN_CIPHER_SUITE_WEP104: | |
838 | data_pad = 4; | |
839 | break; | |
840 | case WLAN_CIPHER_SUITE_TKIP: | |
841 | data_pad = 12; | |
842 | break; | |
843 | case WLAN_CIPHER_SUITE_CCMP: | |
844 | data_pad = 8; | |
845 | break; | |
846 | } | |
847 | } | |
848 | mwl8k_add_dma_header(skb, data_pad); | |
849 | } | |
a66098da LB |
850 | |
851 | /* | |
89a91f4f | 852 | * Packet reception for 88w8366 AP firmware. |
6f6d1e9a | 853 | */ |
89a91f4f | 854 | struct mwl8k_rxd_8366_ap { |
6f6d1e9a LB |
855 | __le16 pkt_len; |
856 | __u8 sq2; | |
857 | __u8 rate; | |
858 | __le32 pkt_phys_addr; | |
859 | __le32 next_rxd_phys_addr; | |
860 | __le16 qos_control; | |
861 | __le16 htsig2; | |
862 | __le32 hw_rssi_info; | |
863 | __le32 hw_noise_floor_info; | |
864 | __u8 noise_floor; | |
865 | __u8 pad0[3]; | |
866 | __u8 rssi; | |
867 | __u8 rx_status; | |
868 | __u8 channel; | |
869 | __u8 rx_ctrl; | |
ba2d3587 | 870 | } __packed; |
6f6d1e9a | 871 | |
89a91f4f LB |
872 | #define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80 |
873 | #define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40 | |
874 | #define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f) | |
8e9f33f0 | 875 | |
89a91f4f | 876 | #define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80 |
6f6d1e9a | 877 | |
d9a07d49 NS |
878 | /* 8366 AP rx_status bits */ |
879 | #define MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK 0x80 | |
880 | #define MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF | |
881 | #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02 | |
882 | #define MWL8K_8366_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04 | |
883 | #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08 | |
884 | ||
89a91f4f | 885 | static void mwl8k_rxd_8366_ap_init(void *_rxd, dma_addr_t next_dma_addr) |
6f6d1e9a | 886 | { |
89a91f4f | 887 | struct mwl8k_rxd_8366_ap *rxd = _rxd; |
6f6d1e9a LB |
888 | |
889 | rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr); | |
89a91f4f | 890 | rxd->rx_ctrl = MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST; |
6f6d1e9a LB |
891 | } |
892 | ||
89a91f4f | 893 | static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len) |
6f6d1e9a | 894 | { |
89a91f4f | 895 | struct mwl8k_rxd_8366_ap *rxd = _rxd; |
6f6d1e9a LB |
896 | |
897 | rxd->pkt_len = cpu_to_le16(len); | |
898 | rxd->pkt_phys_addr = cpu_to_le32(addr); | |
899 | wmb(); | |
900 | rxd->rx_ctrl = 0; | |
901 | } | |
902 | ||
903 | static int | |
89a91f4f | 904 | mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status, |
0d462bbb | 905 | __le16 *qos, s8 *noise) |
6f6d1e9a | 906 | { |
89a91f4f | 907 | struct mwl8k_rxd_8366_ap *rxd = _rxd; |
6f6d1e9a | 908 | |
89a91f4f | 909 | if (!(rxd->rx_ctrl & MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST)) |
6f6d1e9a LB |
910 | return -1; |
911 | rmb(); | |
912 | ||
913 | memset(status, 0, sizeof(*status)); | |
914 | ||
915 | status->signal = -rxd->rssi; | |
0d462bbb | 916 | *noise = -rxd->noise_floor; |
6f6d1e9a | 917 | |
89a91f4f | 918 | if (rxd->rate & MWL8K_8366_AP_RATE_INFO_MCS_FORMAT) { |
6f6d1e9a | 919 | status->flag |= RX_FLAG_HT; |
89a91f4f | 920 | if (rxd->rate & MWL8K_8366_AP_RATE_INFO_40MHZ) |
8e9f33f0 | 921 | status->flag |= RX_FLAG_40MHZ; |
89a91f4f | 922 | status->rate_idx = MWL8K_8366_AP_RATE_INFO_RATEID(rxd->rate); |
6f6d1e9a LB |
923 | } else { |
924 | int i; | |
925 | ||
777ad375 LB |
926 | for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) { |
927 | if (mwl8k_rates_24[i].hw_value == rxd->rate) { | |
6f6d1e9a LB |
928 | status->rate_idx = i; |
929 | break; | |
930 | } | |
931 | } | |
932 | } | |
933 | ||
85478344 LB |
934 | if (rxd->channel > 14) { |
935 | status->band = IEEE80211_BAND_5GHZ; | |
936 | if (!(status->flag & RX_FLAG_HT)) | |
937 | status->rate_idx -= 5; | |
938 | } else { | |
939 | status->band = IEEE80211_BAND_2GHZ; | |
940 | } | |
59eb21a6 BR |
941 | status->freq = ieee80211_channel_to_frequency(rxd->channel, |
942 | status->band); | |
6f6d1e9a | 943 | |
20f09c3d LB |
944 | *qos = rxd->qos_control; |
945 | ||
d9a07d49 NS |
946 | if ((rxd->rx_status != MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR) && |
947 | (rxd->rx_status & MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK) && | |
948 | (rxd->rx_status & MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR)) | |
949 | status->flag |= RX_FLAG_MMIC_ERROR; | |
950 | ||
6f6d1e9a LB |
951 | return le16_to_cpu(rxd->pkt_len); |
952 | } | |
953 | ||
89a91f4f LB |
954 | static struct rxd_ops rxd_8366_ap_ops = { |
955 | .rxd_size = sizeof(struct mwl8k_rxd_8366_ap), | |
956 | .rxd_init = mwl8k_rxd_8366_ap_init, | |
957 | .rxd_refill = mwl8k_rxd_8366_ap_refill, | |
958 | .rxd_process = mwl8k_rxd_8366_ap_process, | |
6f6d1e9a LB |
959 | }; |
960 | ||
961 | /* | |
89a91f4f | 962 | * Packet reception for STA firmware. |
a66098da | 963 | */ |
89a91f4f | 964 | struct mwl8k_rxd_sta { |
a66098da LB |
965 | __le16 pkt_len; |
966 | __u8 link_quality; | |
967 | __u8 noise_level; | |
968 | __le32 pkt_phys_addr; | |
45eb400d | 969 | __le32 next_rxd_phys_addr; |
a66098da LB |
970 | __le16 qos_control; |
971 | __le16 rate_info; | |
972 | __le32 pad0[4]; | |
973 | __u8 rssi; | |
974 | __u8 channel; | |
975 | __le16 pad1; | |
976 | __u8 rx_ctrl; | |
977 | __u8 rx_status; | |
978 | __u8 pad2[2]; | |
ba2d3587 | 979 | } __packed; |
a66098da | 980 | |
89a91f4f LB |
981 | #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000 |
982 | #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3) | |
983 | #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f) | |
984 | #define MWL8K_STA_RATE_INFO_40MHZ 0x0004 | |
985 | #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002 | |
986 | #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001 | |
54bc3a0d | 987 | |
89a91f4f | 988 | #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02 |
d9a07d49 NS |
989 | #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04 |
990 | /* ICV=0 or MIC=1 */ | |
991 | #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08 | |
992 | /* Key is uploaded only in failure case */ | |
993 | #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30 | |
54bc3a0d | 994 | |
89a91f4f | 995 | static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr) |
54bc3a0d | 996 | { |
89a91f4f | 997 | struct mwl8k_rxd_sta *rxd = _rxd; |
54bc3a0d LB |
998 | |
999 | rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr); | |
89a91f4f | 1000 | rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST; |
54bc3a0d LB |
1001 | } |
1002 | ||
89a91f4f | 1003 | static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len) |
54bc3a0d | 1004 | { |
89a91f4f | 1005 | struct mwl8k_rxd_sta *rxd = _rxd; |
54bc3a0d LB |
1006 | |
1007 | rxd->pkt_len = cpu_to_le16(len); | |
1008 | rxd->pkt_phys_addr = cpu_to_le32(addr); | |
1009 | wmb(); | |
1010 | rxd->rx_ctrl = 0; | |
1011 | } | |
1012 | ||
1013 | static int | |
89a91f4f | 1014 | mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status, |
0d462bbb | 1015 | __le16 *qos, s8 *noise) |
54bc3a0d | 1016 | { |
89a91f4f | 1017 | struct mwl8k_rxd_sta *rxd = _rxd; |
54bc3a0d LB |
1018 | u16 rate_info; |
1019 | ||
89a91f4f | 1020 | if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST)) |
54bc3a0d LB |
1021 | return -1; |
1022 | rmb(); | |
1023 | ||
1024 | rate_info = le16_to_cpu(rxd->rate_info); | |
1025 | ||
1026 | memset(status, 0, sizeof(*status)); | |
1027 | ||
1028 | status->signal = -rxd->rssi; | |
0d462bbb | 1029 | *noise = -rxd->noise_level; |
89a91f4f LB |
1030 | status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info); |
1031 | status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info); | |
54bc3a0d | 1032 | |
89a91f4f | 1033 | if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE) |
54bc3a0d | 1034 | status->flag |= RX_FLAG_SHORTPRE; |
89a91f4f | 1035 | if (rate_info & MWL8K_STA_RATE_INFO_40MHZ) |
54bc3a0d | 1036 | status->flag |= RX_FLAG_40MHZ; |
89a91f4f | 1037 | if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI) |
54bc3a0d | 1038 | status->flag |= RX_FLAG_SHORT_GI; |
89a91f4f | 1039 | if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT) |
54bc3a0d LB |
1040 | status->flag |= RX_FLAG_HT; |
1041 | ||
85478344 LB |
1042 | if (rxd->channel > 14) { |
1043 | status->band = IEEE80211_BAND_5GHZ; | |
1044 | if (!(status->flag & RX_FLAG_HT)) | |
1045 | status->rate_idx -= 5; | |
1046 | } else { | |
1047 | status->band = IEEE80211_BAND_2GHZ; | |
1048 | } | |
59eb21a6 BR |
1049 | status->freq = ieee80211_channel_to_frequency(rxd->channel, |
1050 | status->band); | |
54bc3a0d | 1051 | |
20f09c3d | 1052 | *qos = rxd->qos_control; |
d9a07d49 NS |
1053 | if ((rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DECRYPT_ERROR) && |
1054 | (rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DEC_ERR_TYPE)) | |
1055 | status->flag |= RX_FLAG_MMIC_ERROR; | |
20f09c3d | 1056 | |
54bc3a0d LB |
1057 | return le16_to_cpu(rxd->pkt_len); |
1058 | } | |
1059 | ||
89a91f4f LB |
1060 | static struct rxd_ops rxd_sta_ops = { |
1061 | .rxd_size = sizeof(struct mwl8k_rxd_sta), | |
1062 | .rxd_init = mwl8k_rxd_sta_init, | |
1063 | .rxd_refill = mwl8k_rxd_sta_refill, | |
1064 | .rxd_process = mwl8k_rxd_sta_process, | |
54bc3a0d LB |
1065 | }; |
1066 | ||
1067 | ||
a66098da LB |
1068 | #define MWL8K_RX_DESCS 256 |
1069 | #define MWL8K_RX_MAXSZ 3800 | |
1070 | ||
1071 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) | |
1072 | { | |
1073 | struct mwl8k_priv *priv = hw->priv; | |
1074 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1075 | int size; | |
1076 | int i; | |
1077 | ||
45eb400d LB |
1078 | rxq->rxd_count = 0; |
1079 | rxq->head = 0; | |
1080 | rxq->tail = 0; | |
a66098da | 1081 | |
54bc3a0d | 1082 | size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size; |
a66098da | 1083 | |
45eb400d LB |
1084 | rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma); |
1085 | if (rxq->rxd == NULL) { | |
5db55844 | 1086 | wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n"); |
a66098da LB |
1087 | return -ENOMEM; |
1088 | } | |
45eb400d | 1089 | memset(rxq->rxd, 0, size); |
a66098da | 1090 | |
b9ede5f1 | 1091 | rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL); |
788838eb | 1092 | if (rxq->buf == NULL) { |
5db55844 | 1093 | wiphy_err(hw->wiphy, "failed to alloc RX skbuff list\n"); |
45eb400d | 1094 | pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma); |
a66098da LB |
1095 | return -ENOMEM; |
1096 | } | |
a66098da LB |
1097 | |
1098 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
54bc3a0d LB |
1099 | int desc_size; |
1100 | void *rxd; | |
a66098da | 1101 | int nexti; |
54bc3a0d LB |
1102 | dma_addr_t next_dma_addr; |
1103 | ||
1104 | desc_size = priv->rxd_ops->rxd_size; | |
1105 | rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size); | |
a66098da | 1106 | |
54bc3a0d LB |
1107 | nexti = i + 1; |
1108 | if (nexti == MWL8K_RX_DESCS) | |
1109 | nexti = 0; | |
1110 | next_dma_addr = rxq->rxd_dma + (nexti * desc_size); | |
a66098da | 1111 | |
54bc3a0d | 1112 | priv->rxd_ops->rxd_init(rxd, next_dma_addr); |
a66098da LB |
1113 | } |
1114 | ||
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
1119 | { | |
1120 | struct mwl8k_priv *priv = hw->priv; | |
1121 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1122 | int refilled; | |
1123 | ||
1124 | refilled = 0; | |
45eb400d | 1125 | while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) { |
a66098da | 1126 | struct sk_buff *skb; |
788838eb | 1127 | dma_addr_t addr; |
a66098da | 1128 | int rx; |
54bc3a0d | 1129 | void *rxd; |
a66098da LB |
1130 | |
1131 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
1132 | if (skb == NULL) | |
1133 | break; | |
1134 | ||
788838eb LB |
1135 | addr = pci_map_single(priv->pdev, skb->data, |
1136 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE); | |
a66098da | 1137 | |
54bc3a0d LB |
1138 | rxq->rxd_count++; |
1139 | rx = rxq->tail++; | |
1140 | if (rxq->tail == MWL8K_RX_DESCS) | |
1141 | rxq->tail = 0; | |
788838eb | 1142 | rxq->buf[rx].skb = skb; |
53b1b3e1 | 1143 | dma_unmap_addr_set(&rxq->buf[rx], dma, addr); |
54bc3a0d LB |
1144 | |
1145 | rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size); | |
1146 | priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ); | |
a66098da LB |
1147 | |
1148 | refilled++; | |
1149 | } | |
1150 | ||
1151 | return refilled; | |
1152 | } | |
1153 | ||
1154 | /* Must be called only when the card's reception is completely halted */ | |
1155 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
1156 | { | |
1157 | struct mwl8k_priv *priv = hw->priv; | |
1158 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1159 | int i; | |
1160 | ||
73b46320 BC |
1161 | if (rxq->rxd == NULL) |
1162 | return; | |
1163 | ||
a66098da | 1164 | for (i = 0; i < MWL8K_RX_DESCS; i++) { |
788838eb LB |
1165 | if (rxq->buf[i].skb != NULL) { |
1166 | pci_unmap_single(priv->pdev, | |
53b1b3e1 | 1167 | dma_unmap_addr(&rxq->buf[i], dma), |
788838eb | 1168 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); |
53b1b3e1 | 1169 | dma_unmap_addr_set(&rxq->buf[i], dma, 0); |
788838eb LB |
1170 | |
1171 | kfree_skb(rxq->buf[i].skb); | |
1172 | rxq->buf[i].skb = NULL; | |
a66098da LB |
1173 | } |
1174 | } | |
1175 | ||
788838eb LB |
1176 | kfree(rxq->buf); |
1177 | rxq->buf = NULL; | |
a66098da LB |
1178 | |
1179 | pci_free_consistent(priv->pdev, | |
54bc3a0d | 1180 | MWL8K_RX_DESCS * priv->rxd_ops->rxd_size, |
45eb400d LB |
1181 | rxq->rxd, rxq->rxd_dma); |
1182 | rxq->rxd = NULL; | |
a66098da LB |
1183 | } |
1184 | ||
1185 | ||
1186 | /* | |
1187 | * Scan a list of BSSIDs to process for finalize join. | |
1188 | * Allows for extension to process multiple BSSIDs. | |
1189 | */ | |
1190 | static inline int | |
1191 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
1192 | { | |
1193 | return priv->capture_beacon && | |
1194 | ieee80211_is_beacon(wh->frame_control) && | |
1195 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
1196 | } | |
1197 | ||
3779752d LB |
1198 | static inline void mwl8k_save_beacon(struct ieee80211_hw *hw, |
1199 | struct sk_buff *skb) | |
a66098da | 1200 | { |
3779752d LB |
1201 | struct mwl8k_priv *priv = hw->priv; |
1202 | ||
a66098da | 1203 | priv->capture_beacon = false; |
d89173f2 | 1204 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
1205 | |
1206 | /* | |
1207 | * Use GFP_ATOMIC as rxq_process is called from | |
1208 | * the primary interrupt handler, memory allocation call | |
1209 | * must not sleep. | |
1210 | */ | |
1211 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
1212 | if (priv->beacon_skb != NULL) | |
3779752d | 1213 | ieee80211_queue_work(hw, &priv->finalize_join_worker); |
a66098da LB |
1214 | } |
1215 | ||
d9a07d49 NS |
1216 | static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list, |
1217 | u8 *bssid) | |
1218 | { | |
1219 | struct mwl8k_vif *mwl8k_vif; | |
1220 | ||
1221 | list_for_each_entry(mwl8k_vif, | |
1222 | vif_list, list) { | |
1223 | if (memcmp(bssid, mwl8k_vif->bssid, | |
1224 | ETH_ALEN) == 0) | |
1225 | return mwl8k_vif; | |
1226 | } | |
1227 | ||
1228 | return NULL; | |
1229 | } | |
1230 | ||
a66098da LB |
1231 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) |
1232 | { | |
1233 | struct mwl8k_priv *priv = hw->priv; | |
d9a07d49 | 1234 | struct mwl8k_vif *mwl8k_vif = NULL; |
a66098da LB |
1235 | struct mwl8k_rx_queue *rxq = priv->rxq + index; |
1236 | int processed; | |
1237 | ||
1238 | processed = 0; | |
45eb400d | 1239 | while (rxq->rxd_count && limit--) { |
a66098da | 1240 | struct sk_buff *skb; |
54bc3a0d LB |
1241 | void *rxd; |
1242 | int pkt_len; | |
a66098da | 1243 | struct ieee80211_rx_status status; |
d9a07d49 | 1244 | struct ieee80211_hdr *wh; |
20f09c3d | 1245 | __le16 qos; |
a66098da | 1246 | |
788838eb | 1247 | skb = rxq->buf[rxq->head].skb; |
d25f9f13 LB |
1248 | if (skb == NULL) |
1249 | break; | |
54bc3a0d LB |
1250 | |
1251 | rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size); | |
1252 | ||
0d462bbb JL |
1253 | pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos, |
1254 | &priv->noise); | |
54bc3a0d LB |
1255 | if (pkt_len < 0) |
1256 | break; | |
1257 | ||
788838eb LB |
1258 | rxq->buf[rxq->head].skb = NULL; |
1259 | ||
1260 | pci_unmap_single(priv->pdev, | |
53b1b3e1 | 1261 | dma_unmap_addr(&rxq->buf[rxq->head], dma), |
788838eb | 1262 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); |
53b1b3e1 | 1263 | dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0); |
a66098da | 1264 | |
54bc3a0d LB |
1265 | rxq->head++; |
1266 | if (rxq->head == MWL8K_RX_DESCS) | |
1267 | rxq->head = 0; | |
1268 | ||
45eb400d | 1269 | rxq->rxd_count--; |
a66098da | 1270 | |
d9a07d49 | 1271 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da | 1272 | |
a66098da | 1273 | /* |
c2c357ce LB |
1274 | * Check for a pending join operation. Save a |
1275 | * copy of the beacon and schedule a tasklet to | |
1276 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da | 1277 | */ |
54bc3a0d | 1278 | if (mwl8k_capture_bssid(priv, (void *)skb->data)) |
3779752d | 1279 | mwl8k_save_beacon(hw, skb); |
a66098da | 1280 | |
d9a07d49 NS |
1281 | if (ieee80211_has_protected(wh->frame_control)) { |
1282 | ||
1283 | /* Check if hw crypto has been enabled for | |
1284 | * this bss. If yes, set the status flags | |
1285 | * accordingly | |
1286 | */ | |
1287 | mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list, | |
1288 | wh->addr1); | |
1289 | ||
1290 | if (mwl8k_vif != NULL && | |
1291 | mwl8k_vif->is_hw_crypto_enabled == true) { | |
1292 | /* | |
1293 | * When MMIC ERROR is encountered | |
1294 | * by the firmware, payload is | |
1295 | * dropped and only 32 bytes of | |
1296 | * mwl8k Firmware header is sent | |
1297 | * to the host. | |
1298 | * | |
1299 | * We need to add four bytes of | |
1300 | * key information. In it | |
1301 | * MAC80211 expects keyidx set to | |
1302 | * 0 for triggering Counter | |
1303 | * Measure of MMIC failure. | |
1304 | */ | |
1305 | if (status.flag & RX_FLAG_MMIC_ERROR) { | |
1306 | struct mwl8k_dma_data *tr; | |
1307 | tr = (struct mwl8k_dma_data *)skb->data; | |
1308 | memset((void *)&(tr->data), 0, 4); | |
1309 | pkt_len += 4; | |
1310 | } | |
1311 | ||
1312 | if (!ieee80211_is_auth(wh->frame_control)) | |
1313 | status.flag |= RX_FLAG_IV_STRIPPED | | |
1314 | RX_FLAG_DECRYPTED | | |
1315 | RX_FLAG_MMIC_STRIPPED; | |
1316 | } | |
1317 | } | |
1318 | ||
1319 | skb_put(skb, pkt_len); | |
1320 | mwl8k_remove_dma_header(skb, qos); | |
f1d58c25 JB |
1321 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
1322 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
1323 | |
1324 | processed++; | |
1325 | } | |
1326 | ||
1327 | return processed; | |
1328 | } | |
1329 | ||
1330 | ||
1331 | /* | |
1332 | * Packet transmission. | |
1333 | */ | |
1334 | ||
a66098da LB |
1335 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
1336 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
1337 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
1338 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 1339 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da | 1340 | |
e0493a8d LB |
1341 | #define MWL8K_QOS_QLEN_UNSPEC 0xff00 |
1342 | #define MWL8K_QOS_ACK_POLICY_MASK 0x0060 | |
1343 | #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000 | |
1344 | #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060 | |
1345 | #define MWL8K_QOS_EOSP 0x0010 | |
1346 | ||
a66098da LB |
1347 | struct mwl8k_tx_desc { |
1348 | __le32 status; | |
1349 | __u8 data_rate; | |
1350 | __u8 tx_priority; | |
1351 | __le16 qos_control; | |
1352 | __le32 pkt_phys_addr; | |
1353 | __le16 pkt_len; | |
d89173f2 | 1354 | __u8 dest_MAC_addr[ETH_ALEN]; |
45eb400d | 1355 | __le32 next_txd_phys_addr; |
8a7a578c | 1356 | __le32 timestamp; |
a66098da LB |
1357 | __le16 rate_info; |
1358 | __u8 peer_id; | |
a1fe24b0 | 1359 | __u8 tx_frag_cnt; |
ba2d3587 | 1360 | } __packed; |
a66098da LB |
1361 | |
1362 | #define MWL8K_TX_DESCS 128 | |
1363 | ||
1364 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1365 | { | |
1366 | struct mwl8k_priv *priv = hw->priv; | |
1367 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1368 | int size; | |
1369 | int i; | |
1370 | ||
8ccbc3b8 | 1371 | txq->len = 0; |
45eb400d LB |
1372 | txq->head = 0; |
1373 | txq->tail = 0; | |
a66098da LB |
1374 | |
1375 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1376 | ||
45eb400d LB |
1377 | txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma); |
1378 | if (txq->txd == NULL) { | |
5db55844 | 1379 | wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n"); |
a66098da LB |
1380 | return -ENOMEM; |
1381 | } | |
45eb400d | 1382 | memset(txq->txd, 0, size); |
a66098da | 1383 | |
b9ede5f1 | 1384 | txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL); |
45eb400d | 1385 | if (txq->skb == NULL) { |
5db55844 | 1386 | wiphy_err(hw->wiphy, "failed to alloc TX skbuff list\n"); |
45eb400d | 1387 | pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma); |
a66098da LB |
1388 | return -ENOMEM; |
1389 | } | |
a66098da LB |
1390 | |
1391 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1392 | struct mwl8k_tx_desc *tx_desc; | |
1393 | int nexti; | |
1394 | ||
45eb400d | 1395 | tx_desc = txq->txd + i; |
a66098da LB |
1396 | nexti = (i + 1) % MWL8K_TX_DESCS; |
1397 | ||
1398 | tx_desc->status = 0; | |
45eb400d LB |
1399 | tx_desc->next_txd_phys_addr = |
1400 | cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc)); | |
a66098da LB |
1401 | } |
1402 | ||
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1407 | { | |
1408 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1409 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1410 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1411 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1412 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1413 | } | |
1414 | ||
7e1112d3 | 1415 | static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw) |
a66098da | 1416 | { |
7e1112d3 LB |
1417 | struct mwl8k_priv *priv = hw->priv; |
1418 | int i; | |
1419 | ||
e600707b | 1420 | for (i = 0; i < mwl8k_tx_queues(priv); i++) { |
7e1112d3 LB |
1421 | struct mwl8k_tx_queue *txq = priv->txq + i; |
1422 | int fw_owned = 0; | |
1423 | int drv_owned = 0; | |
1424 | int unused = 0; | |
1425 | int desc; | |
1426 | ||
a66098da | 1427 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { |
7e1112d3 LB |
1428 | struct mwl8k_tx_desc *tx_desc = txq->txd + desc; |
1429 | u32 status; | |
a66098da | 1430 | |
7e1112d3 | 1431 | status = le32_to_cpu(tx_desc->status); |
a66098da | 1432 | if (status & MWL8K_TXD_STATUS_FW_OWNED) |
7e1112d3 | 1433 | fw_owned++; |
a66098da | 1434 | else |
7e1112d3 | 1435 | drv_owned++; |
a66098da LB |
1436 | |
1437 | if (tx_desc->pkt_len == 0) | |
7e1112d3 | 1438 | unused++; |
a66098da | 1439 | } |
a66098da | 1440 | |
c96c31e4 JP |
1441 | wiphy_err(hw->wiphy, |
1442 | "txq[%d] len=%d head=%d tail=%d " | |
1443 | "fw_owned=%d drv_owned=%d unused=%d\n", | |
1444 | i, | |
1445 | txq->len, txq->head, txq->tail, | |
1446 | fw_owned, drv_owned, unused); | |
7e1112d3 | 1447 | } |
a66098da LB |
1448 | } |
1449 | ||
618952a7 | 1450 | /* |
88de754a | 1451 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1452 | */ |
62abd3cf | 1453 | #define MWL8K_TX_WAIT_TIMEOUT_MS 5000 |
7e1112d3 | 1454 | |
950d5b01 | 1455 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1456 | { |
a66098da | 1457 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1458 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
7e1112d3 LB |
1459 | int retry; |
1460 | int rc; | |
a66098da LB |
1461 | |
1462 | might_sleep(); | |
1463 | ||
7e1112d3 LB |
1464 | /* |
1465 | * The TX queues are stopped at this point, so this test | |
1466 | * doesn't need to take ->tx_lock. | |
1467 | */ | |
1468 | if (!priv->pending_tx_pkts) | |
1469 | return 0; | |
1470 | ||
1471 | retry = 0; | |
1472 | rc = 0; | |
1473 | ||
a66098da | 1474 | spin_lock_bh(&priv->tx_lock); |
7e1112d3 LB |
1475 | priv->tx_wait = &tx_wait; |
1476 | while (!rc) { | |
1477 | int oldcount; | |
1478 | unsigned long timeout; | |
a66098da | 1479 | |
7e1112d3 | 1480 | oldcount = priv->pending_tx_pkts; |
a66098da | 1481 | |
7e1112d3 | 1482 | spin_unlock_bh(&priv->tx_lock); |
88de754a | 1483 | timeout = wait_for_completion_timeout(&tx_wait, |
7e1112d3 | 1484 | msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS)); |
a66098da | 1485 | spin_lock_bh(&priv->tx_lock); |
7e1112d3 LB |
1486 | |
1487 | if (timeout) { | |
1488 | WARN_ON(priv->pending_tx_pkts); | |
1489 | if (retry) { | |
c96c31e4 | 1490 | wiphy_notice(hw->wiphy, "tx rings drained\n"); |
7e1112d3 LB |
1491 | } |
1492 | break; | |
1493 | } | |
1494 | ||
1495 | if (priv->pending_tx_pkts < oldcount) { | |
c96c31e4 JP |
1496 | wiphy_notice(hw->wiphy, |
1497 | "waiting for tx rings to drain (%d -> %d pkts)\n", | |
1498 | oldcount, priv->pending_tx_pkts); | |
7e1112d3 LB |
1499 | retry = 1; |
1500 | continue; | |
1501 | } | |
1502 | ||
a66098da | 1503 | priv->tx_wait = NULL; |
a66098da | 1504 | |
c96c31e4 JP |
1505 | wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n", |
1506 | MWL8K_TX_WAIT_TIMEOUT_MS); | |
7e1112d3 LB |
1507 | mwl8k_dump_tx_rings(hw); |
1508 | ||
1509 | rc = -ETIMEDOUT; | |
a66098da | 1510 | } |
7e1112d3 | 1511 | spin_unlock_bh(&priv->tx_lock); |
a66098da | 1512 | |
7e1112d3 | 1513 | return rc; |
a66098da LB |
1514 | } |
1515 | ||
c23b5a69 LB |
1516 | #define MWL8K_TXD_SUCCESS(status) \ |
1517 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1518 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1519 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da | 1520 | |
17033543 NS |
1521 | /* The firmware will fill in the rate information |
1522 | * for each packet that gets queued in the hardware | |
1523 | * in this structure | |
1524 | */ | |
1525 | ||
1526 | struct rateinfo { | |
1527 | __le16 format:1; | |
1528 | __le16 short_gi:1; | |
1529 | __le16 band_width:1; | |
1530 | __le16 rate_id_mcs:6; | |
1531 | __le16 adv_coding:2; | |
1532 | __le16 antenna:2; | |
1533 | __le16 act_sub_chan:2; | |
1534 | __le16 preamble_type:1; | |
1535 | __le16 power_id:4; | |
1536 | __le16 antenna2:1; | |
1537 | __le16 reserved:1; | |
1538 | __le16 tx_bf_frame:1; | |
1539 | __le16 green_field:1; | |
1540 | } __packed; | |
1541 | ||
efb7c49a LB |
1542 | static int |
1543 | mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) | |
a66098da LB |
1544 | { |
1545 | struct mwl8k_priv *priv = hw->priv; | |
1546 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
efb7c49a | 1547 | int processed; |
a66098da | 1548 | |
efb7c49a | 1549 | processed = 0; |
8ccbc3b8 | 1550 | while (txq->len > 0 && limit--) { |
a66098da | 1551 | int tx; |
a66098da LB |
1552 | struct mwl8k_tx_desc *tx_desc; |
1553 | unsigned long addr; | |
ce9e2e1b | 1554 | int size; |
a66098da LB |
1555 | struct sk_buff *skb; |
1556 | struct ieee80211_tx_info *info; | |
1557 | u32 status; | |
17033543 NS |
1558 | struct ieee80211_sta *sta; |
1559 | struct mwl8k_sta *sta_info = NULL; | |
1560 | u16 rate_info; | |
1561 | struct rateinfo *rate; | |
1562 | struct ieee80211_hdr *wh; | |
a66098da | 1563 | |
45eb400d LB |
1564 | tx = txq->head; |
1565 | tx_desc = txq->txd + tx; | |
a66098da LB |
1566 | |
1567 | status = le32_to_cpu(tx_desc->status); | |
1568 | ||
1569 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1570 | if (!force) | |
1571 | break; | |
1572 | tx_desc->status &= | |
1573 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1574 | } | |
1575 | ||
45eb400d | 1576 | txq->head = (tx + 1) % MWL8K_TX_DESCS; |
8ccbc3b8 KV |
1577 | BUG_ON(txq->len == 0); |
1578 | txq->len--; | |
a66098da LB |
1579 | priv->pending_tx_pkts--; |
1580 | ||
1581 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1582 | size = le16_to_cpu(tx_desc->pkt_len); |
45eb400d LB |
1583 | skb = txq->skb[tx]; |
1584 | txq->skb[tx] = NULL; | |
a66098da LB |
1585 | |
1586 | BUG_ON(skb == NULL); | |
1587 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1588 | ||
20f09c3d | 1589 | mwl8k_remove_dma_header(skb, tx_desc->qos_control); |
a66098da | 1590 | |
17033543 NS |
1591 | wh = (struct ieee80211_hdr *) skb->data; |
1592 | ||
a66098da LB |
1593 | /* Mark descriptor as unused */ |
1594 | tx_desc->pkt_phys_addr = 0; | |
1595 | tx_desc->pkt_len = 0; | |
1596 | ||
a66098da | 1597 | info = IEEE80211_SKB_CB(skb); |
17033543 NS |
1598 | if (ieee80211_is_data(wh->frame_control)) { |
1599 | sta = info->control.sta; | |
1600 | if (sta) { | |
1601 | sta_info = MWL8K_STA(sta); | |
1602 | BUG_ON(sta_info == NULL); | |
1603 | rate_info = le16_to_cpu(tx_desc->rate_info); | |
1604 | rate = (struct rateinfo *)&rate_info; | |
1605 | /* If rate is < 6.5 Mpbs for an ht station | |
1606 | * do not form an ampdu. If the station is a | |
1607 | * legacy station (format = 0), do not form an | |
1608 | * ampdu | |
1609 | */ | |
1610 | if (rate->rate_id_mcs < 1 || | |
1611 | rate->format == 0) { | |
1612 | sta_info->is_ampdu_allowed = false; | |
1613 | } else { | |
1614 | sta_info->is_ampdu_allowed = true; | |
1615 | } | |
1616 | } | |
1617 | } | |
1618 | ||
a66098da | 1619 | ieee80211_tx_info_clear_status(info); |
0bf22c37 NS |
1620 | |
1621 | /* Rate control is happening in the firmware. | |
1622 | * Ensure no tx rate is being reported. | |
1623 | */ | |
1624 | info->status.rates[0].idx = -1; | |
1625 | info->status.rates[0].count = 1; | |
1626 | ||
ce9e2e1b | 1627 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1628 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1629 | |
1630 | ieee80211_tx_status_irqsafe(hw, skb); | |
1631 | ||
efb7c49a | 1632 | processed++; |
a66098da LB |
1633 | } |
1634 | ||
65f3ddcd NS |
1635 | if (index < MWL8K_TX_WMM_QUEUES && processed && priv->radio_on && |
1636 | !mutex_is_locked(&priv->fw_mutex)) | |
a66098da | 1637 | ieee80211_wake_queue(hw, index); |
efb7c49a LB |
1638 | |
1639 | return processed; | |
a66098da LB |
1640 | } |
1641 | ||
1642 | /* must be called only when the card's transmit is completely halted */ | |
1643 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1644 | { | |
1645 | struct mwl8k_priv *priv = hw->priv; | |
1646 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1647 | ||
73b46320 BC |
1648 | if (txq->txd == NULL) |
1649 | return; | |
1650 | ||
efb7c49a | 1651 | mwl8k_txq_reclaim(hw, index, INT_MAX, 1); |
a66098da | 1652 | |
45eb400d LB |
1653 | kfree(txq->skb); |
1654 | txq->skb = NULL; | |
a66098da LB |
1655 | |
1656 | pci_free_consistent(priv->pdev, | |
1657 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
45eb400d LB |
1658 | txq->txd, txq->txd_dma); |
1659 | txq->txd = NULL; | |
a66098da LB |
1660 | } |
1661 | ||
ac109fd0 BC |
1662 | /* caller must hold priv->stream_lock when calling the stream functions */ |
1663 | struct mwl8k_ampdu_stream * | |
1664 | mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid) | |
1665 | { | |
1666 | struct mwl8k_ampdu_stream *stream; | |
1667 | struct mwl8k_priv *priv = hw->priv; | |
1668 | int i; | |
1669 | ||
1670 | for (i = 0; i < priv->num_ampdu_queues; i++) { | |
1671 | stream = &priv->ampdu[i]; | |
1672 | if (stream->state == AMPDU_NO_STREAM) { | |
1673 | stream->sta = sta; | |
1674 | stream->state = AMPDU_STREAM_NEW; | |
1675 | stream->tid = tid; | |
1676 | stream->idx = i; | |
1677 | stream->txq_idx = MWL8K_TX_WMM_QUEUES + i; | |
1678 | wiphy_debug(hw->wiphy, "Added a new stream for %pM %d", | |
1679 | sta->addr, tid); | |
1680 | return stream; | |
1681 | } | |
1682 | } | |
1683 | return NULL; | |
1684 | } | |
1685 | ||
1686 | static int | |
1687 | mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream) | |
1688 | { | |
1689 | int ret; | |
1690 | ||
1691 | /* if the stream has already been started, don't start it again */ | |
1692 | if (stream->state != AMPDU_STREAM_NEW) | |
1693 | return 0; | |
1694 | ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0); | |
1695 | if (ret) | |
1696 | wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: " | |
1697 | "%d\n", stream->sta->addr, stream->tid, ret); | |
1698 | else | |
1699 | wiphy_debug(hw->wiphy, "Started stream for %pM %d\n", | |
1700 | stream->sta->addr, stream->tid); | |
1701 | return ret; | |
1702 | } | |
1703 | ||
1704 | static void | |
1705 | mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream) | |
1706 | { | |
1707 | wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr, | |
1708 | stream->tid); | |
1709 | memset(stream, 0, sizeof(*stream)); | |
1710 | } | |
1711 | ||
1712 | static struct mwl8k_ampdu_stream * | |
1713 | mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid) | |
1714 | { | |
1715 | struct mwl8k_priv *priv = hw->priv; | |
1716 | int i; | |
1717 | ||
1718 | for (i = 0 ; i < priv->num_ampdu_queues; i++) { | |
1719 | struct mwl8k_ampdu_stream *stream; | |
1720 | stream = &priv->ampdu[i]; | |
1721 | if (stream->state == AMPDU_NO_STREAM) | |
1722 | continue; | |
1723 | if (!memcmp(stream->sta->addr, addr, ETH_ALEN) && | |
1724 | stream->tid == tid) | |
1725 | return stream; | |
1726 | } | |
1727 | return NULL; | |
1728 | } | |
1729 | ||
7bb45683 | 1730 | static void |
a66098da LB |
1731 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) |
1732 | { | |
1733 | struct mwl8k_priv *priv = hw->priv; | |
1734 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1735 | struct mwl8k_vif *mwl8k_vif; |
65f3ddcd | 1736 | struct ieee80211_sta *sta; |
a66098da LB |
1737 | struct ieee80211_hdr *wh; |
1738 | struct mwl8k_tx_queue *txq; | |
1739 | struct mwl8k_tx_desc *tx; | |
a66098da | 1740 | dma_addr_t dma; |
23b33906 LB |
1741 | u32 txstatus; |
1742 | u8 txdatarate; | |
1743 | u16 qos; | |
65f3ddcd NS |
1744 | int txpriority; |
1745 | u8 tid = 0; | |
1746 | struct mwl8k_ampdu_stream *stream = NULL; | |
1747 | bool start_ba_session = false; | |
a66098da | 1748 | |
23b33906 LB |
1749 | wh = (struct ieee80211_hdr *)skb->data; |
1750 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1751 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1752 | else | |
1753 | qos = 0; | |
a66098da | 1754 | |
d9a07d49 NS |
1755 | if (priv->ap_fw) |
1756 | mwl8k_encapsulate_tx_frame(skb); | |
1757 | else | |
1758 | mwl8k_add_dma_header(skb, 0); | |
1759 | ||
23b33906 | 1760 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1761 | |
1762 | tx_info = IEEE80211_SKB_CB(skb); | |
65f3ddcd | 1763 | sta = tx_info->control.sta; |
a66098da | 1764 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); |
a66098da LB |
1765 | |
1766 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
a66098da | 1767 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
657232b6 LB |
1768 | wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno); |
1769 | mwl8k_vif->seqno += 0x10; | |
a66098da LB |
1770 | } |
1771 | ||
23b33906 LB |
1772 | /* Setup firmware control bit fields for each frame type. */ |
1773 | txstatus = 0; | |
1774 | txdatarate = 0; | |
1775 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1776 | ieee80211_is_ctl(wh->frame_control)) { | |
1777 | txdatarate = 0; | |
e0493a8d | 1778 | qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP; |
23b33906 LB |
1779 | } else if (ieee80211_is_data(wh->frame_control)) { |
1780 | txdatarate = 1; | |
1781 | if (is_multicast_ether_addr(wh->addr1)) | |
1782 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1783 | ||
e0493a8d | 1784 | qos &= ~MWL8K_QOS_ACK_POLICY_MASK; |
23b33906 | 1785 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) |
e0493a8d | 1786 | qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK; |
23b33906 | 1787 | else |
e0493a8d | 1788 | qos |= MWL8K_QOS_ACK_POLICY_NORMAL; |
23b33906 | 1789 | } |
a66098da | 1790 | |
65f3ddcd NS |
1791 | txpriority = index; |
1792 | ||
1793 | if (ieee80211_is_data_qos(wh->frame_control) && | |
1794 | skb->protocol != cpu_to_be16(ETH_P_PAE) && | |
1795 | sta->ht_cap.ht_supported && priv->ap_fw) { | |
1796 | tid = qos & 0xf; | |
1797 | spin_lock(&priv->stream_lock); | |
1798 | stream = mwl8k_lookup_stream(hw, sta->addr, tid); | |
1799 | if (stream != NULL) { | |
1800 | if (stream->state == AMPDU_STREAM_ACTIVE) { | |
1801 | txpriority = stream->txq_idx; | |
1802 | index = stream->txq_idx; | |
1803 | } else if (stream->state == AMPDU_STREAM_NEW) { | |
1804 | /* We get here if the driver sends us packets | |
1805 | * after we've initiated a stream, but before | |
1806 | * our ampdu_action routine has been called | |
1807 | * with IEEE80211_AMPDU_TX_START to get the SSN | |
1808 | * for the ADDBA request. So this packet can | |
1809 | * go out with no risk of sequence number | |
1810 | * mismatch. No special handling is required. | |
1811 | */ | |
1812 | } else { | |
1813 | /* Drop packets that would go out after the | |
1814 | * ADDBA request was sent but before the ADDBA | |
1815 | * response is received. If we don't do this, | |
1816 | * the recipient would probably receive it | |
1817 | * after the ADDBA request with SSN 0. This | |
1818 | * will cause the recipient's BA receive window | |
1819 | * to shift, which would cause the subsequent | |
1820 | * packets in the BA stream to be discarded. | |
1821 | * mac80211 queues our packets for us in this | |
1822 | * case, so this is really just a safety check. | |
1823 | */ | |
1824 | wiphy_warn(hw->wiphy, | |
1825 | "Cannot send packet while ADDBA " | |
1826 | "dialog is underway.\n"); | |
1827 | spin_unlock(&priv->stream_lock); | |
1828 | dev_kfree_skb(skb); | |
1829 | return; | |
1830 | } | |
1831 | } else { | |
1832 | /* Defer calling mwl8k_start_stream so that the current | |
1833 | * skb can go out before the ADDBA request. This | |
1834 | * prevents sequence number mismatch at the recepient | |
1835 | * as described above. | |
1836 | */ | |
17033543 NS |
1837 | if (MWL8K_STA(sta)->is_ampdu_allowed) { |
1838 | stream = mwl8k_add_stream(hw, sta, tid); | |
1839 | if (stream != NULL) | |
1840 | start_ba_session = true; | |
1841 | } | |
65f3ddcd NS |
1842 | } |
1843 | spin_unlock(&priv->stream_lock); | |
1844 | } | |
1845 | ||
a66098da LB |
1846 | dma = pci_map_single(priv->pdev, skb->data, |
1847 | skb->len, PCI_DMA_TODEVICE); | |
1848 | ||
1849 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
c96c31e4 JP |
1850 | wiphy_debug(hw->wiphy, |
1851 | "failed to dma map skb, dropping TX frame.\n"); | |
65f3ddcd NS |
1852 | if (start_ba_session) { |
1853 | spin_lock(&priv->stream_lock); | |
1854 | mwl8k_remove_stream(hw, stream); | |
1855 | spin_unlock(&priv->stream_lock); | |
1856 | } | |
23b33906 | 1857 | dev_kfree_skb(skb); |
7bb45683 | 1858 | return; |
a66098da LB |
1859 | } |
1860 | ||
23b33906 | 1861 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1862 | |
23b33906 | 1863 | txq = priv->txq + index; |
a66098da | 1864 | |
65f3ddcd NS |
1865 | if (index >= MWL8K_TX_WMM_QUEUES && txq->len >= MWL8K_TX_DESCS) { |
1866 | /* This is the case in which the tx packet is destined for an | |
1867 | * AMPDU queue and that AMPDU queue is full. Because we don't | |
1868 | * start and stop the AMPDU queues, we must drop these packets. | |
1869 | */ | |
1870 | dev_kfree_skb(skb); | |
1871 | spin_unlock_bh(&priv->tx_lock); | |
1872 | return; | |
1873 | } | |
1874 | ||
45eb400d LB |
1875 | BUG_ON(txq->skb[txq->tail] != NULL); |
1876 | txq->skb[txq->tail] = skb; | |
a66098da | 1877 | |
45eb400d | 1878 | tx = txq->txd + txq->tail; |
23b33906 | 1879 | tx->data_rate = txdatarate; |
65f3ddcd | 1880 | tx->tx_priority = txpriority; |
a66098da | 1881 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1882 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1883 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 | 1884 | tx->rate_info = 0; |
a680400e LB |
1885 | if (!priv->ap_fw && tx_info->control.sta != NULL) |
1886 | tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id; | |
1887 | else | |
1888 | tx->peer_id = 0; | |
a66098da | 1889 | wmb(); |
23b33906 LB |
1890 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1891 | ||
8ccbc3b8 | 1892 | txq->len++; |
a66098da | 1893 | priv->pending_tx_pkts++; |
a66098da | 1894 | |
45eb400d LB |
1895 | txq->tail++; |
1896 | if (txq->tail == MWL8K_TX_DESCS) | |
1897 | txq->tail = 0; | |
23b33906 | 1898 | |
65f3ddcd | 1899 | if (txq->head == txq->tail && index < MWL8K_TX_WMM_QUEUES) |
a66098da LB |
1900 | ieee80211_stop_queue(hw, index); |
1901 | ||
23b33906 | 1902 | mwl8k_tx_start(priv); |
a66098da LB |
1903 | |
1904 | spin_unlock_bh(&priv->tx_lock); | |
65f3ddcd NS |
1905 | |
1906 | /* Initiate the ampdu session here */ | |
1907 | if (start_ba_session) { | |
1908 | spin_lock(&priv->stream_lock); | |
1909 | if (mwl8k_start_stream(hw, stream)) | |
1910 | mwl8k_remove_stream(hw, stream); | |
1911 | spin_unlock(&priv->stream_lock); | |
1912 | } | |
a66098da LB |
1913 | } |
1914 | ||
1915 | ||
618952a7 LB |
1916 | /* |
1917 | * Firmware access. | |
1918 | * | |
1919 | * We have the following requirements for issuing firmware commands: | |
1920 | * - Some commands require that the packet transmit path is idle when | |
1921 | * the command is issued. (For simplicity, we'll just quiesce the | |
1922 | * transmit path for every command.) | |
1923 | * - There are certain sequences of commands that need to be issued to | |
1924 | * the hardware sequentially, with no other intervening commands. | |
1925 | * | |
1926 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1927 | * can be taken recursively, and which is taken by both the low-level | |
1928 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1929 | * that function that require issuing of an atomic sequence of commands, | |
1930 | * and quiesces the transmit path whenever it's taken. | |
1931 | */ | |
1932 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1933 | { | |
1934 | struct mwl8k_priv *priv = hw->priv; | |
1935 | ||
1936 | if (priv->fw_mutex_owner != current) { | |
1937 | int rc; | |
1938 | ||
1939 | mutex_lock(&priv->fw_mutex); | |
1940 | ieee80211_stop_queues(hw); | |
1941 | ||
1942 | rc = mwl8k_tx_wait_empty(hw); | |
1943 | if (rc) { | |
1944 | ieee80211_wake_queues(hw); | |
1945 | mutex_unlock(&priv->fw_mutex); | |
1946 | ||
1947 | return rc; | |
1948 | } | |
1949 | ||
1950 | priv->fw_mutex_owner = current; | |
1951 | } | |
1952 | ||
1953 | priv->fw_mutex_depth++; | |
1954 | ||
1955 | return 0; | |
1956 | } | |
1957 | ||
1958 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1959 | { | |
1960 | struct mwl8k_priv *priv = hw->priv; | |
1961 | ||
1962 | if (!--priv->fw_mutex_depth) { | |
1963 | ieee80211_wake_queues(hw); | |
1964 | priv->fw_mutex_owner = NULL; | |
1965 | mutex_unlock(&priv->fw_mutex); | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | ||
a66098da LB |
1970 | /* |
1971 | * Command processing. | |
1972 | */ | |
1973 | ||
0c9cc640 LB |
1974 | /* Timeout firmware commands after 10s */ |
1975 | #define MWL8K_CMD_TIMEOUT_MS 10000 | |
a66098da LB |
1976 | |
1977 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1978 | { | |
1979 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1980 | struct mwl8k_priv *priv = hw->priv; | |
1981 | void __iomem *regs = priv->regs; | |
1982 | dma_addr_t dma_addr; | |
1983 | unsigned int dma_size; | |
1984 | int rc; | |
a66098da LB |
1985 | unsigned long timeout = 0; |
1986 | u8 buf[32]; | |
1987 | ||
b603742f | 1988 | cmd->result = (__force __le16) 0xffff; |
a66098da LB |
1989 | dma_size = le16_to_cpu(cmd->length); |
1990 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1991 | PCI_DMA_BIDIRECTIONAL); | |
1992 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1993 | return -ENOMEM; | |
1994 | ||
618952a7 | 1995 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1996 | if (rc) { |
1997 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1998 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1999 | return rc; |
39a1e42e | 2000 | } |
a66098da | 2001 | |
a66098da LB |
2002 | priv->hostcmd_wait = &cmd_wait; |
2003 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
2004 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
2005 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
2006 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
2007 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
2008 | |
2009 | timeout = wait_for_completion_timeout(&cmd_wait, | |
2010 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
2011 | ||
618952a7 LB |
2012 | priv->hostcmd_wait = NULL; |
2013 | ||
2014 | mwl8k_fw_unlock(hw); | |
2015 | ||
37055bd4 LB |
2016 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
2017 | PCI_DMA_BIDIRECTIONAL); | |
2018 | ||
a66098da | 2019 | if (!timeout) { |
5db55844 | 2020 | wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n", |
c96c31e4 JP |
2021 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
2022 | MWL8K_CMD_TIMEOUT_MS); | |
a66098da LB |
2023 | rc = -ETIMEDOUT; |
2024 | } else { | |
0c9cc640 LB |
2025 | int ms; |
2026 | ||
2027 | ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout); | |
2028 | ||
ce9e2e1b | 2029 | rc = cmd->result ? -EINVAL : 0; |
a66098da | 2030 | if (rc) |
5db55844 | 2031 | wiphy_err(hw->wiphy, "Command %s error 0x%x\n", |
c96c31e4 JP |
2032 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
2033 | le16_to_cpu(cmd->result)); | |
0c9cc640 | 2034 | else if (ms > 2000) |
5db55844 | 2035 | wiphy_notice(hw->wiphy, "Command %s took %d ms\n", |
c96c31e4 JP |
2036 | mwl8k_cmd_name(cmd->code, |
2037 | buf, sizeof(buf)), | |
2038 | ms); | |
a66098da LB |
2039 | } |
2040 | ||
a66098da LB |
2041 | return rc; |
2042 | } | |
2043 | ||
f57ca9c1 LB |
2044 | static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw, |
2045 | struct ieee80211_vif *vif, | |
2046 | struct mwl8k_cmd_pkt *cmd) | |
2047 | { | |
2048 | if (vif != NULL) | |
2049 | cmd->macid = MWL8K_VIF(vif)->macid; | |
2050 | return mwl8k_post_cmd(hw, cmd); | |
2051 | } | |
2052 | ||
1349ad2f LB |
2053 | /* |
2054 | * Setup code shared between STA and AP firmware images. | |
2055 | */ | |
2056 | static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw) | |
2057 | { | |
2058 | struct mwl8k_priv *priv = hw->priv; | |
2059 | ||
2060 | BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24)); | |
2061 | memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24)); | |
2062 | ||
2063 | BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24)); | |
2064 | memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24)); | |
2065 | ||
2066 | priv->band_24.band = IEEE80211_BAND_2GHZ; | |
2067 | priv->band_24.channels = priv->channels_24; | |
2068 | priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24); | |
2069 | priv->band_24.bitrates = priv->rates_24; | |
2070 | priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24); | |
2071 | ||
2072 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24; | |
2073 | } | |
2074 | ||
4eae9edd LB |
2075 | static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw) |
2076 | { | |
2077 | struct mwl8k_priv *priv = hw->priv; | |
2078 | ||
2079 | BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50)); | |
2080 | memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50)); | |
2081 | ||
2082 | BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50)); | |
2083 | memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50)); | |
2084 | ||
2085 | priv->band_50.band = IEEE80211_BAND_5GHZ; | |
2086 | priv->band_50.channels = priv->channels_50; | |
2087 | priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50); | |
2088 | priv->band_50.bitrates = priv->rates_50; | |
2089 | priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50); | |
2090 | ||
2091 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50; | |
2092 | } | |
2093 | ||
a66098da | 2094 | /* |
04b147b1 | 2095 | * CMD_GET_HW_SPEC (STA version). |
a66098da | 2096 | */ |
04b147b1 | 2097 | struct mwl8k_cmd_get_hw_spec_sta { |
a66098da LB |
2098 | struct mwl8k_cmd_pkt header; |
2099 | __u8 hw_rev; | |
2100 | __u8 host_interface; | |
2101 | __le16 num_mcaddrs; | |
d89173f2 | 2102 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
2103 | __le16 region_code; |
2104 | __le32 fw_rev; | |
2105 | __le32 ps_cookie; | |
2106 | __le32 caps; | |
2107 | __u8 mcs_bitmap[16]; | |
2108 | __le32 rx_queue_ptr; | |
2109 | __le32 num_tx_queues; | |
e600707b | 2110 | __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES]; |
a66098da LB |
2111 | __le32 caps2; |
2112 | __le32 num_tx_desc_per_queue; | |
45eb400d | 2113 | __le32 total_rxd; |
ba2d3587 | 2114 | } __packed; |
a66098da | 2115 | |
341c9791 LB |
2116 | #define MWL8K_CAP_MAX_AMSDU 0x20000000 |
2117 | #define MWL8K_CAP_GREENFIELD 0x08000000 | |
2118 | #define MWL8K_CAP_AMPDU 0x04000000 | |
2119 | #define MWL8K_CAP_RX_STBC 0x01000000 | |
2120 | #define MWL8K_CAP_TX_STBC 0x00800000 | |
2121 | #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000 | |
2122 | #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000 | |
2123 | #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000 | |
2124 | #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000 | |
2125 | #define MWL8K_CAP_DELAY_BA 0x00003000 | |
2126 | #define MWL8K_CAP_MIMO 0x00000200 | |
2127 | #define MWL8K_CAP_40MHZ 0x00000100 | |
06953235 LB |
2128 | #define MWL8K_CAP_BAND_MASK 0x00000007 |
2129 | #define MWL8K_CAP_5GHZ 0x00000004 | |
2130 | #define MWL8K_CAP_2GHZ4 0x00000001 | |
341c9791 | 2131 | |
06953235 LB |
2132 | static void |
2133 | mwl8k_set_ht_caps(struct ieee80211_hw *hw, | |
2134 | struct ieee80211_supported_band *band, u32 cap) | |
341c9791 | 2135 | { |
341c9791 LB |
2136 | int rx_streams; |
2137 | int tx_streams; | |
2138 | ||
777ad375 | 2139 | band->ht_cap.ht_supported = 1; |
341c9791 LB |
2140 | |
2141 | if (cap & MWL8K_CAP_MAX_AMSDU) | |
777ad375 | 2142 | band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
341c9791 | 2143 | if (cap & MWL8K_CAP_GREENFIELD) |
777ad375 | 2144 | band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD; |
341c9791 LB |
2145 | if (cap & MWL8K_CAP_AMPDU) { |
2146 | hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION; | |
777ad375 LB |
2147 | band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
2148 | band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; | |
341c9791 LB |
2149 | } |
2150 | if (cap & MWL8K_CAP_RX_STBC) | |
777ad375 | 2151 | band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC; |
341c9791 | 2152 | if (cap & MWL8K_CAP_TX_STBC) |
777ad375 | 2153 | band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC; |
341c9791 | 2154 | if (cap & MWL8K_CAP_SHORTGI_40MHZ) |
777ad375 | 2155 | band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; |
341c9791 | 2156 | if (cap & MWL8K_CAP_SHORTGI_20MHZ) |
777ad375 | 2157 | band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; |
341c9791 | 2158 | if (cap & MWL8K_CAP_DELAY_BA) |
777ad375 | 2159 | band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA; |
341c9791 | 2160 | if (cap & MWL8K_CAP_40MHZ) |
777ad375 | 2161 | band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
341c9791 LB |
2162 | |
2163 | rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK); | |
2164 | tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK); | |
2165 | ||
777ad375 | 2166 | band->ht_cap.mcs.rx_mask[0] = 0xff; |
341c9791 | 2167 | if (rx_streams >= 2) |
777ad375 | 2168 | band->ht_cap.mcs.rx_mask[1] = 0xff; |
341c9791 | 2169 | if (rx_streams >= 3) |
777ad375 LB |
2170 | band->ht_cap.mcs.rx_mask[2] = 0xff; |
2171 | band->ht_cap.mcs.rx_mask[4] = 0x01; | |
2172 | band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
341c9791 LB |
2173 | |
2174 | if (rx_streams != tx_streams) { | |
777ad375 LB |
2175 | band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
2176 | band->ht_cap.mcs.tx_params |= (tx_streams - 1) << | |
341c9791 LB |
2177 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; |
2178 | } | |
2179 | } | |
2180 | ||
06953235 LB |
2181 | static void |
2182 | mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps) | |
2183 | { | |
2184 | struct mwl8k_priv *priv = hw->priv; | |
2185 | ||
2186 | if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) { | |
2187 | mwl8k_setup_2ghz_band(hw); | |
2188 | if (caps & MWL8K_CAP_MIMO) | |
2189 | mwl8k_set_ht_caps(hw, &priv->band_24, caps); | |
2190 | } | |
2191 | ||
2192 | if (caps & MWL8K_CAP_5GHZ) { | |
2193 | mwl8k_setup_5ghz_band(hw); | |
2194 | if (caps & MWL8K_CAP_MIMO) | |
2195 | mwl8k_set_ht_caps(hw, &priv->band_50, caps); | |
2196 | } | |
2197 | } | |
2198 | ||
04b147b1 | 2199 | static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw) |
a66098da LB |
2200 | { |
2201 | struct mwl8k_priv *priv = hw->priv; | |
04b147b1 | 2202 | struct mwl8k_cmd_get_hw_spec_sta *cmd; |
a66098da LB |
2203 | int rc; |
2204 | int i; | |
2205 | ||
2206 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2207 | if (cmd == NULL) | |
2208 | return -ENOMEM; | |
2209 | ||
2210 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
2211 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2212 | ||
2213 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
2214 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
45eb400d | 2215 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); |
e600707b BC |
2216 | cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv)); |
2217 | for (i = 0; i < mwl8k_tx_queues(priv); i++) | |
45eb400d | 2218 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); |
4ff6432e | 2219 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
45eb400d | 2220 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); |
a66098da LB |
2221 | |
2222 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2223 | ||
2224 | if (!rc) { | |
2225 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
2226 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 2227 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 2228 | priv->hw_rev = cmd->hw_rev; |
06953235 | 2229 | mwl8k_set_caps(hw, le32_to_cpu(cmd->caps)); |
ee0ddf18 LB |
2230 | priv->ap_macids_supported = 0x00000000; |
2231 | priv->sta_macids_supported = 0x00000001; | |
a66098da LB |
2232 | } |
2233 | ||
2234 | kfree(cmd); | |
2235 | return rc; | |
2236 | } | |
2237 | ||
42fba21d LB |
2238 | /* |
2239 | * CMD_GET_HW_SPEC (AP version). | |
2240 | */ | |
2241 | struct mwl8k_cmd_get_hw_spec_ap { | |
2242 | struct mwl8k_cmd_pkt header; | |
2243 | __u8 hw_rev; | |
2244 | __u8 host_interface; | |
2245 | __le16 num_wcb; | |
2246 | __le16 num_mcaddrs; | |
2247 | __u8 perm_addr[ETH_ALEN]; | |
2248 | __le16 region_code; | |
2249 | __le16 num_antenna; | |
2250 | __le32 fw_rev; | |
2251 | __le32 wcbbase0; | |
2252 | __le32 rxwrptr; | |
2253 | __le32 rxrdptr; | |
2254 | __le32 ps_cookie; | |
2255 | __le32 wcbbase1; | |
2256 | __le32 wcbbase2; | |
2257 | __le32 wcbbase3; | |
952a0e96 | 2258 | __le32 fw_api_version; |
8a7a578c BC |
2259 | __le32 caps; |
2260 | __le32 num_of_ampdu_queues; | |
2261 | __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES]; | |
ba2d3587 | 2262 | } __packed; |
42fba21d LB |
2263 | |
2264 | static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) | |
2265 | { | |
2266 | struct mwl8k_priv *priv = hw->priv; | |
2267 | struct mwl8k_cmd_get_hw_spec_ap *cmd; | |
8a7a578c | 2268 | int rc, i; |
952a0e96 | 2269 | u32 api_version; |
42fba21d LB |
2270 | |
2271 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2272 | if (cmd == NULL) | |
2273 | return -ENOMEM; | |
2274 | ||
2275 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
2276 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2277 | ||
2278 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
2279 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
2280 | ||
2281 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2282 | ||
2283 | if (!rc) { | |
2284 | int off; | |
2285 | ||
952a0e96 BC |
2286 | api_version = le32_to_cpu(cmd->fw_api_version); |
2287 | if (priv->device_info->fw_api_ap != api_version) { | |
2288 | printk(KERN_ERR "%s: Unsupported fw API version for %s." | |
2289 | " Expected %d got %d.\n", MWL8K_NAME, | |
2290 | priv->device_info->part_name, | |
2291 | priv->device_info->fw_api_ap, | |
2292 | api_version); | |
2293 | rc = -EINVAL; | |
2294 | goto done; | |
2295 | } | |
42fba21d LB |
2296 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); |
2297 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
2298 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); | |
2299 | priv->hw_rev = cmd->hw_rev; | |
8a7a578c | 2300 | mwl8k_set_caps(hw, le32_to_cpu(cmd->caps)); |
ee0ddf18 LB |
2301 | priv->ap_macids_supported = 0x000000ff; |
2302 | priv->sta_macids_supported = 0x00000000; | |
8a7a578c BC |
2303 | priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues); |
2304 | if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) { | |
2305 | wiphy_warn(hw->wiphy, "fw reported %d ampdu queues" | |
2306 | " but we only support %d.\n", | |
2307 | priv->num_ampdu_queues, | |
2308 | MWL8K_MAX_AMPDU_QUEUES); | |
2309 | priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES; | |
2310 | } | |
42fba21d | 2311 | off = le32_to_cpu(cmd->rxwrptr) & 0xffff; |
b603742f | 2312 | iowrite32(priv->rxq[0].rxd_dma, priv->sram + off); |
42fba21d LB |
2313 | |
2314 | off = le32_to_cpu(cmd->rxrdptr) & 0xffff; | |
b603742f | 2315 | iowrite32(priv->rxq[0].rxd_dma, priv->sram + off); |
42fba21d | 2316 | |
73b46320 BC |
2317 | priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff; |
2318 | priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff; | |
2319 | priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff; | |
2320 | priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff; | |
8a7a578c BC |
2321 | |
2322 | for (i = 0; i < priv->num_ampdu_queues; i++) | |
e600707b | 2323 | priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] = |
8a7a578c | 2324 | le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff; |
42fba21d LB |
2325 | } |
2326 | ||
952a0e96 | 2327 | done: |
42fba21d LB |
2328 | kfree(cmd); |
2329 | return rc; | |
2330 | } | |
2331 | ||
2332 | /* | |
2333 | * CMD_SET_HW_SPEC. | |
2334 | */ | |
2335 | struct mwl8k_cmd_set_hw_spec { | |
2336 | struct mwl8k_cmd_pkt header; | |
2337 | __u8 hw_rev; | |
2338 | __u8 host_interface; | |
2339 | __le16 num_mcaddrs; | |
2340 | __u8 perm_addr[ETH_ALEN]; | |
2341 | __le16 region_code; | |
2342 | __le32 fw_rev; | |
2343 | __le32 ps_cookie; | |
2344 | __le32 caps; | |
2345 | __le32 rx_queue_ptr; | |
2346 | __le32 num_tx_queues; | |
e600707b | 2347 | __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES]; |
42fba21d LB |
2348 | __le32 flags; |
2349 | __le32 num_tx_desc_per_queue; | |
2350 | __le32 total_rxd; | |
ba2d3587 | 2351 | } __packed; |
42fba21d | 2352 | |
8a7a578c BC |
2353 | /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause |
2354 | * packets to expire 500 ms after the timestamp in the tx descriptor. That is, | |
2355 | * the packets that are queued for more than 500ms, will be dropped in the | |
2356 | * hardware. This helps minimizing the issues caused due to head-of-line | |
2357 | * blocking where a slow client can hog the bandwidth and affect traffic to a | |
2358 | * faster client. | |
2359 | */ | |
2360 | #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400 | |
b64fe619 LB |
2361 | #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080 |
2362 | #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020 | |
2363 | #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010 | |
42fba21d LB |
2364 | |
2365 | static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw) | |
2366 | { | |
2367 | struct mwl8k_priv *priv = hw->priv; | |
2368 | struct mwl8k_cmd_set_hw_spec *cmd; | |
2369 | int rc; | |
2370 | int i; | |
2371 | ||
2372 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2373 | if (cmd == NULL) | |
2374 | return -ENOMEM; | |
2375 | ||
2376 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC); | |
2377 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2378 | ||
2379 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
2380 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); | |
e600707b | 2381 | cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv)); |
85c9205c NS |
2382 | |
2383 | /* | |
2384 | * Mac80211 stack has Q0 as highest priority and Q3 as lowest in | |
2385 | * that order. Firmware has Q3 as highest priority and Q0 as lowest | |
2386 | * in that order. Map Q3 of mac80211 to Q0 of firmware so that the | |
2387 | * priority is interpreted the right way in firmware. | |
2388 | */ | |
e600707b BC |
2389 | for (i = 0; i < mwl8k_tx_queues(priv); i++) { |
2390 | int j = mwl8k_tx_queues(priv) - 1 - i; | |
85c9205c NS |
2391 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma); |
2392 | } | |
2393 | ||
b64fe619 LB |
2394 | cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT | |
2395 | MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP | | |
2396 | MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON); | |
42fba21d LB |
2397 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
2398 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); | |
2399 | ||
2400 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2401 | kfree(cmd); | |
2402 | ||
2403 | return rc; | |
2404 | } | |
2405 | ||
a66098da LB |
2406 | /* |
2407 | * CMD_MAC_MULTICAST_ADR. | |
2408 | */ | |
2409 | struct mwl8k_cmd_mac_multicast_adr { | |
2410 | struct mwl8k_cmd_pkt header; | |
2411 | __le16 action; | |
2412 | __le16 numaddr; | |
ce9e2e1b | 2413 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
2414 | }; |
2415 | ||
d5e30845 LB |
2416 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
2417 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
2418 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
2419 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 2420 | |
e81cd2d6 | 2421 | static struct mwl8k_cmd_pkt * |
447ced07 | 2422 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti, |
22bedad3 | 2423 | struct netdev_hw_addr_list *mc_list) |
a66098da | 2424 | { |
e81cd2d6 | 2425 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2426 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
e81cd2d6 | 2427 | int size; |
22bedad3 JP |
2428 | int mc_count = 0; |
2429 | ||
2430 | if (mc_list) | |
2431 | mc_count = netdev_hw_addr_list_count(mc_list); | |
e81cd2d6 | 2432 | |
447ced07 | 2433 | if (allmulti || mc_count > priv->num_mcaddrs) { |
d5e30845 LB |
2434 | allmulti = 1; |
2435 | mc_count = 0; | |
2436 | } | |
e81cd2d6 LB |
2437 | |
2438 | size = sizeof(*cmd) + mc_count * ETH_ALEN; | |
ce9e2e1b | 2439 | |
e81cd2d6 | 2440 | cmd = kzalloc(size, GFP_ATOMIC); |
a66098da | 2441 | if (cmd == NULL) |
e81cd2d6 | 2442 | return NULL; |
a66098da LB |
2443 | |
2444 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); | |
2445 | cmd->header.length = cpu_to_le16(size); | |
d5e30845 LB |
2446 | cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED | |
2447 | MWL8K_ENABLE_RX_BROADCAST); | |
2448 | ||
2449 | if (allmulti) { | |
2450 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST); | |
2451 | } else if (mc_count) { | |
22bedad3 JP |
2452 | struct netdev_hw_addr *ha; |
2453 | int i = 0; | |
d5e30845 LB |
2454 | |
2455 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); | |
2456 | cmd->numaddr = cpu_to_le16(mc_count); | |
22bedad3 JP |
2457 | netdev_hw_addr_list_for_each(ha, mc_list) { |
2458 | memcpy(cmd->addr[i], ha->addr, ETH_ALEN); | |
a66098da | 2459 | } |
a66098da LB |
2460 | } |
2461 | ||
e81cd2d6 | 2462 | return &cmd->header; |
a66098da LB |
2463 | } |
2464 | ||
2465 | /* | |
55489b6e | 2466 | * CMD_GET_STAT. |
a66098da | 2467 | */ |
55489b6e | 2468 | struct mwl8k_cmd_get_stat { |
a66098da | 2469 | struct mwl8k_cmd_pkt header; |
a66098da | 2470 | __le32 stats[64]; |
ba2d3587 | 2471 | } __packed; |
a66098da LB |
2472 | |
2473 | #define MWL8K_STAT_ACK_FAILURE 9 | |
2474 | #define MWL8K_STAT_RTS_FAILURE 12 | |
2475 | #define MWL8K_STAT_FCS_ERROR 24 | |
2476 | #define MWL8K_STAT_RTS_SUCCESS 11 | |
2477 | ||
55489b6e LB |
2478 | static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw, |
2479 | struct ieee80211_low_level_stats *stats) | |
a66098da | 2480 | { |
55489b6e | 2481 | struct mwl8k_cmd_get_stat *cmd; |
a66098da LB |
2482 | int rc; |
2483 | ||
2484 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2485 | if (cmd == NULL) | |
2486 | return -ENOMEM; | |
2487 | ||
2488 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); | |
2489 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2490 | |
2491 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2492 | if (!rc) { | |
2493 | stats->dot11ACKFailureCount = | |
2494 | le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); | |
2495 | stats->dot11RTSFailureCount = | |
2496 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); | |
2497 | stats->dot11FCSErrorCount = | |
2498 | le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); | |
2499 | stats->dot11RTSSuccessCount = | |
2500 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); | |
2501 | } | |
2502 | kfree(cmd); | |
2503 | ||
2504 | return rc; | |
2505 | } | |
2506 | ||
2507 | /* | |
55489b6e | 2508 | * CMD_RADIO_CONTROL. |
a66098da | 2509 | */ |
55489b6e | 2510 | struct mwl8k_cmd_radio_control { |
a66098da LB |
2511 | struct mwl8k_cmd_pkt header; |
2512 | __le16 action; | |
2513 | __le16 control; | |
2514 | __le16 radio_on; | |
ba2d3587 | 2515 | } __packed; |
a66098da | 2516 | |
c46563b7 | 2517 | static int |
55489b6e | 2518 | mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force) |
a66098da LB |
2519 | { |
2520 | struct mwl8k_priv *priv = hw->priv; | |
55489b6e | 2521 | struct mwl8k_cmd_radio_control *cmd; |
a66098da LB |
2522 | int rc; |
2523 | ||
c46563b7 | 2524 | if (enable == priv->radio_on && !force) |
a66098da LB |
2525 | return 0; |
2526 | ||
a66098da LB |
2527 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
2528 | if (cmd == NULL) | |
2529 | return -ENOMEM; | |
2530 | ||
2531 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); | |
2532 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2533 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
68ce3884 | 2534 | cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1); |
a66098da LB |
2535 | cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); |
2536 | ||
2537 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2538 | kfree(cmd); | |
2539 | ||
2540 | if (!rc) | |
c46563b7 | 2541 | priv->radio_on = enable; |
a66098da LB |
2542 | |
2543 | return rc; | |
2544 | } | |
2545 | ||
55489b6e | 2546 | static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw) |
c46563b7 | 2547 | { |
55489b6e | 2548 | return mwl8k_cmd_radio_control(hw, 0, 0); |
c46563b7 LB |
2549 | } |
2550 | ||
55489b6e | 2551 | static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw) |
c46563b7 | 2552 | { |
55489b6e | 2553 | return mwl8k_cmd_radio_control(hw, 1, 0); |
c46563b7 LB |
2554 | } |
2555 | ||
a66098da LB |
2556 | static int |
2557 | mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) | |
2558 | { | |
99200a99 | 2559 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2560 | |
68ce3884 | 2561 | priv->radio_short_preamble = short_preamble; |
a66098da | 2562 | |
55489b6e | 2563 | return mwl8k_cmd_radio_control(hw, 1, 1); |
a66098da LB |
2564 | } |
2565 | ||
2566 | /* | |
55489b6e | 2567 | * CMD_RF_TX_POWER. |
a66098da | 2568 | */ |
41fdf097 | 2569 | #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8 |
a66098da | 2570 | |
55489b6e | 2571 | struct mwl8k_cmd_rf_tx_power { |
a66098da LB |
2572 | struct mwl8k_cmd_pkt header; |
2573 | __le16 action; | |
2574 | __le16 support_level; | |
2575 | __le16 current_level; | |
2576 | __le16 reserved; | |
41fdf097 | 2577 | __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL]; |
ba2d3587 | 2578 | } __packed; |
a66098da | 2579 | |
55489b6e | 2580 | static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm) |
a66098da | 2581 | { |
55489b6e | 2582 | struct mwl8k_cmd_rf_tx_power *cmd; |
a66098da LB |
2583 | int rc; |
2584 | ||
2585 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2586 | if (cmd == NULL) | |
2587 | return -ENOMEM; | |
2588 | ||
2589 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); | |
2590 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2591 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2592 | cmd->support_level = cpu_to_le16(dBm); | |
2593 | ||
2594 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2595 | kfree(cmd); | |
2596 | ||
2597 | return rc; | |
2598 | } | |
2599 | ||
41fdf097 NS |
2600 | /* |
2601 | * CMD_TX_POWER. | |
2602 | */ | |
2603 | #define MWL8K_TX_POWER_LEVEL_TOTAL 12 | |
2604 | ||
2605 | struct mwl8k_cmd_tx_power { | |
2606 | struct mwl8k_cmd_pkt header; | |
2607 | __le16 action; | |
2608 | __le16 band; | |
2609 | __le16 channel; | |
2610 | __le16 bw; | |
2611 | __le16 sub_ch; | |
2612 | __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; | |
2613 | } __attribute__((packed)); | |
2614 | ||
2615 | static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw, | |
2616 | struct ieee80211_conf *conf, | |
2617 | unsigned short pwr) | |
2618 | { | |
2619 | struct ieee80211_channel *channel = conf->channel; | |
2620 | struct mwl8k_cmd_tx_power *cmd; | |
2621 | int rc; | |
2622 | int i; | |
2623 | ||
2624 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2625 | if (cmd == NULL) | |
2626 | return -ENOMEM; | |
2627 | ||
2628 | cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER); | |
2629 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2630 | cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST); | |
2631 | ||
2632 | if (channel->band == IEEE80211_BAND_2GHZ) | |
2633 | cmd->band = cpu_to_le16(0x1); | |
2634 | else if (channel->band == IEEE80211_BAND_5GHZ) | |
2635 | cmd->band = cpu_to_le16(0x4); | |
2636 | ||
2637 | cmd->channel = channel->hw_value; | |
2638 | ||
2639 | if (conf->channel_type == NL80211_CHAN_NO_HT || | |
2640 | conf->channel_type == NL80211_CHAN_HT20) { | |
2641 | cmd->bw = cpu_to_le16(0x2); | |
2642 | } else { | |
2643 | cmd->bw = cpu_to_le16(0x4); | |
2644 | if (conf->channel_type == NL80211_CHAN_HT40MINUS) | |
2645 | cmd->sub_ch = cpu_to_le16(0x3); | |
2646 | else if (conf->channel_type == NL80211_CHAN_HT40PLUS) | |
2647 | cmd->sub_ch = cpu_to_le16(0x1); | |
2648 | } | |
2649 | ||
2650 | for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++) | |
2651 | cmd->power_level_list[i] = cpu_to_le16(pwr); | |
2652 | ||
2653 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2654 | kfree(cmd); | |
2655 | ||
2656 | return rc; | |
2657 | } | |
2658 | ||
08b06347 LB |
2659 | /* |
2660 | * CMD_RF_ANTENNA. | |
2661 | */ | |
2662 | struct mwl8k_cmd_rf_antenna { | |
2663 | struct mwl8k_cmd_pkt header; | |
2664 | __le16 antenna; | |
2665 | __le16 mode; | |
ba2d3587 | 2666 | } __packed; |
08b06347 LB |
2667 | |
2668 | #define MWL8K_RF_ANTENNA_RX 1 | |
2669 | #define MWL8K_RF_ANTENNA_TX 2 | |
2670 | ||
2671 | static int | |
2672 | mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask) | |
2673 | { | |
2674 | struct mwl8k_cmd_rf_antenna *cmd; | |
2675 | int rc; | |
2676 | ||
2677 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2678 | if (cmd == NULL) | |
2679 | return -ENOMEM; | |
2680 | ||
2681 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA); | |
2682 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2683 | cmd->antenna = cpu_to_le16(antenna); | |
2684 | cmd->mode = cpu_to_le16(mask); | |
2685 | ||
2686 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2687 | kfree(cmd); | |
2688 | ||
2689 | return rc; | |
2690 | } | |
2691 | ||
b64fe619 LB |
2692 | /* |
2693 | * CMD_SET_BEACON. | |
2694 | */ | |
2695 | struct mwl8k_cmd_set_beacon { | |
2696 | struct mwl8k_cmd_pkt header; | |
2697 | __le16 beacon_len; | |
2698 | __u8 beacon[0]; | |
2699 | }; | |
2700 | ||
aa21d0f6 LB |
2701 | static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw, |
2702 | struct ieee80211_vif *vif, u8 *beacon, int len) | |
b64fe619 LB |
2703 | { |
2704 | struct mwl8k_cmd_set_beacon *cmd; | |
2705 | int rc; | |
2706 | ||
2707 | cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL); | |
2708 | if (cmd == NULL) | |
2709 | return -ENOMEM; | |
2710 | ||
2711 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON); | |
2712 | cmd->header.length = cpu_to_le16(sizeof(*cmd) + len); | |
2713 | cmd->beacon_len = cpu_to_le16(len); | |
2714 | memcpy(cmd->beacon, beacon, len); | |
2715 | ||
aa21d0f6 | 2716 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
b64fe619 LB |
2717 | kfree(cmd); |
2718 | ||
2719 | return rc; | |
2720 | } | |
2721 | ||
a66098da LB |
2722 | /* |
2723 | * CMD_SET_PRE_SCAN. | |
2724 | */ | |
2725 | struct mwl8k_cmd_set_pre_scan { | |
2726 | struct mwl8k_cmd_pkt header; | |
ba2d3587 | 2727 | } __packed; |
a66098da LB |
2728 | |
2729 | static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) | |
2730 | { | |
2731 | struct mwl8k_cmd_set_pre_scan *cmd; | |
2732 | int rc; | |
2733 | ||
2734 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2735 | if (cmd == NULL) | |
2736 | return -ENOMEM; | |
2737 | ||
2738 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); | |
2739 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2740 | ||
2741 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2742 | kfree(cmd); | |
2743 | ||
2744 | return rc; | |
2745 | } | |
2746 | ||
2747 | /* | |
2748 | * CMD_SET_POST_SCAN. | |
2749 | */ | |
2750 | struct mwl8k_cmd_set_post_scan { | |
2751 | struct mwl8k_cmd_pkt header; | |
2752 | __le32 isibss; | |
d89173f2 | 2753 | __u8 bssid[ETH_ALEN]; |
ba2d3587 | 2754 | } __packed; |
a66098da LB |
2755 | |
2756 | static int | |
0a11dfc3 | 2757 | mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac) |
a66098da LB |
2758 | { |
2759 | struct mwl8k_cmd_set_post_scan *cmd; | |
2760 | int rc; | |
2761 | ||
2762 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2763 | if (cmd == NULL) | |
2764 | return -ENOMEM; | |
2765 | ||
2766 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); | |
2767 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2768 | cmd->isibss = 0; | |
d89173f2 | 2769 | memcpy(cmd->bssid, mac, ETH_ALEN); |
a66098da LB |
2770 | |
2771 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2772 | kfree(cmd); | |
2773 | ||
2774 | return rc; | |
2775 | } | |
2776 | ||
2777 | /* | |
2778 | * CMD_SET_RF_CHANNEL. | |
2779 | */ | |
2780 | struct mwl8k_cmd_set_rf_channel { | |
2781 | struct mwl8k_cmd_pkt header; | |
2782 | __le16 action; | |
2783 | __u8 current_channel; | |
2784 | __le32 channel_flags; | |
ba2d3587 | 2785 | } __packed; |
a66098da LB |
2786 | |
2787 | static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, | |
610677d2 | 2788 | struct ieee80211_conf *conf) |
a66098da | 2789 | { |
610677d2 | 2790 | struct ieee80211_channel *channel = conf->channel; |
a66098da LB |
2791 | struct mwl8k_cmd_set_rf_channel *cmd; |
2792 | int rc; | |
2793 | ||
2794 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2795 | if (cmd == NULL) | |
2796 | return -ENOMEM; | |
2797 | ||
2798 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); | |
2799 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2800 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2801 | cmd->current_channel = channel->hw_value; | |
610677d2 | 2802 | |
a66098da | 2803 | if (channel->band == IEEE80211_BAND_2GHZ) |
610677d2 | 2804 | cmd->channel_flags |= cpu_to_le32(0x00000001); |
42574ea2 LB |
2805 | else if (channel->band == IEEE80211_BAND_5GHZ) |
2806 | cmd->channel_flags |= cpu_to_le32(0x00000004); | |
610677d2 LB |
2807 | |
2808 | if (conf->channel_type == NL80211_CHAN_NO_HT || | |
2809 | conf->channel_type == NL80211_CHAN_HT20) | |
2810 | cmd->channel_flags |= cpu_to_le32(0x00000080); | |
2811 | else if (conf->channel_type == NL80211_CHAN_HT40MINUS) | |
2812 | cmd->channel_flags |= cpu_to_le32(0x000001900); | |
2813 | else if (conf->channel_type == NL80211_CHAN_HT40PLUS) | |
2814 | cmd->channel_flags |= cpu_to_le32(0x000000900); | |
a66098da LB |
2815 | |
2816 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2817 | kfree(cmd); | |
2818 | ||
2819 | return rc; | |
2820 | } | |
2821 | ||
2822 | /* | |
55489b6e | 2823 | * CMD_SET_AID. |
a66098da | 2824 | */ |
55489b6e LB |
2825 | #define MWL8K_FRAME_PROT_DISABLED 0x00 |
2826 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2827 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2828 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da | 2829 | |
55489b6e LB |
2830 | struct mwl8k_cmd_update_set_aid { |
2831 | struct mwl8k_cmd_pkt header; | |
2832 | __le16 aid; | |
a66098da | 2833 | |
55489b6e LB |
2834 | /* AP's MAC address (BSSID) */ |
2835 | __u8 bssid[ETH_ALEN]; | |
2836 | __le16 protection_mode; | |
2837 | __u8 supp_rates[14]; | |
ba2d3587 | 2838 | } __packed; |
a66098da | 2839 | |
c6e96010 LB |
2840 | static void legacy_rate_mask_to_array(u8 *rates, u32 mask) |
2841 | { | |
2842 | int i; | |
2843 | int j; | |
2844 | ||
2845 | /* | |
2846 | * Clear nonstandard rates 4 and 13. | |
2847 | */ | |
2848 | mask &= 0x1fef; | |
2849 | ||
2850 | for (i = 0, j = 0; i < 14; i++) { | |
2851 | if (mask & (1 << i)) | |
777ad375 | 2852 | rates[j++] = mwl8k_rates_24[i].hw_value; |
c6e96010 LB |
2853 | } |
2854 | } | |
2855 | ||
55489b6e | 2856 | static int |
c6e96010 LB |
2857 | mwl8k_cmd_set_aid(struct ieee80211_hw *hw, |
2858 | struct ieee80211_vif *vif, u32 legacy_rate_mask) | |
a66098da | 2859 | { |
55489b6e LB |
2860 | struct mwl8k_cmd_update_set_aid *cmd; |
2861 | u16 prot_mode; | |
a66098da LB |
2862 | int rc; |
2863 | ||
2864 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2865 | if (cmd == NULL) | |
2866 | return -ENOMEM; | |
2867 | ||
55489b6e | 2868 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); |
a66098da | 2869 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
7dc6a7a7 | 2870 | cmd->aid = cpu_to_le16(vif->bss_conf.aid); |
0a11dfc3 | 2871 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); |
a66098da | 2872 | |
7dc6a7a7 | 2873 | if (vif->bss_conf.use_cts_prot) { |
55489b6e LB |
2874 | prot_mode = MWL8K_FRAME_PROT_11G; |
2875 | } else { | |
7dc6a7a7 | 2876 | switch (vif->bss_conf.ht_operation_mode & |
55489b6e LB |
2877 | IEEE80211_HT_OP_MODE_PROTECTION) { |
2878 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2879 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2880 | break; | |
2881 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2882 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2883 | break; | |
2884 | default: | |
2885 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2886 | break; | |
2887 | } | |
2888 | } | |
2889 | cmd->protection_mode = cpu_to_le16(prot_mode); | |
a66098da | 2890 | |
c6e96010 | 2891 | legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask); |
a66098da LB |
2892 | |
2893 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2894 | kfree(cmd); | |
2895 | ||
2896 | return rc; | |
2897 | } | |
2898 | ||
32060e1b | 2899 | /* |
55489b6e | 2900 | * CMD_SET_RATE. |
32060e1b | 2901 | */ |
55489b6e LB |
2902 | struct mwl8k_cmd_set_rate { |
2903 | struct mwl8k_cmd_pkt header; | |
2904 | __u8 legacy_rates[14]; | |
2905 | ||
2906 | /* Bitmap for supported MCS codes. */ | |
2907 | __u8 mcs_set[16]; | |
2908 | __u8 reserved[16]; | |
ba2d3587 | 2909 | } __packed; |
32060e1b | 2910 | |
55489b6e | 2911 | static int |
c6e96010 | 2912 | mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
13935e2c | 2913 | u32 legacy_rate_mask, u8 *mcs_rates) |
32060e1b | 2914 | { |
55489b6e | 2915 | struct mwl8k_cmd_set_rate *cmd; |
32060e1b LB |
2916 | int rc; |
2917 | ||
2918 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2919 | if (cmd == NULL) | |
2920 | return -ENOMEM; | |
2921 | ||
55489b6e | 2922 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); |
32060e1b | 2923 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
c6e96010 | 2924 | legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask); |
13935e2c | 2925 | memcpy(cmd->mcs_set, mcs_rates, 16); |
32060e1b LB |
2926 | |
2927 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2928 | kfree(cmd); | |
2929 | ||
2930 | return rc; | |
2931 | } | |
2932 | ||
a66098da | 2933 | /* |
55489b6e | 2934 | * CMD_FINALIZE_JOIN. |
a66098da | 2935 | */ |
55489b6e LB |
2936 | #define MWL8K_FJ_BEACON_MAXLEN 128 |
2937 | ||
2938 | struct mwl8k_cmd_finalize_join { | |
a66098da | 2939 | struct mwl8k_cmd_pkt header; |
55489b6e LB |
2940 | __le32 sleep_interval; /* Number of beacon periods to sleep */ |
2941 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
ba2d3587 | 2942 | } __packed; |
a66098da | 2943 | |
55489b6e LB |
2944 | static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame, |
2945 | int framelen, int dtim) | |
a66098da | 2946 | { |
55489b6e LB |
2947 | struct mwl8k_cmd_finalize_join *cmd; |
2948 | struct ieee80211_mgmt *payload = frame; | |
2949 | int payload_len; | |
a66098da LB |
2950 | int rc; |
2951 | ||
2952 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2953 | if (cmd == NULL) | |
2954 | return -ENOMEM; | |
2955 | ||
55489b6e | 2956 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); |
a66098da | 2957 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
2958 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
2959 | ||
2960 | payload_len = framelen - ieee80211_hdrlen(payload->frame_control); | |
2961 | if (payload_len < 0) | |
2962 | payload_len = 0; | |
2963 | else if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2964 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
2965 | ||
2966 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
a66098da LB |
2967 | |
2968 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2969 | kfree(cmd); | |
2970 | ||
2971 | return rc; | |
2972 | } | |
2973 | ||
2974 | /* | |
55489b6e | 2975 | * CMD_SET_RTS_THRESHOLD. |
a66098da | 2976 | */ |
55489b6e | 2977 | struct mwl8k_cmd_set_rts_threshold { |
a66098da LB |
2978 | struct mwl8k_cmd_pkt header; |
2979 | __le16 action; | |
55489b6e | 2980 | __le16 threshold; |
ba2d3587 | 2981 | } __packed; |
a66098da | 2982 | |
c2c2b12a LB |
2983 | static int |
2984 | mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh) | |
a66098da | 2985 | { |
55489b6e | 2986 | struct mwl8k_cmd_set_rts_threshold *cmd; |
a66098da LB |
2987 | int rc; |
2988 | ||
2989 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2990 | if (cmd == NULL) | |
2991 | return -ENOMEM; | |
2992 | ||
55489b6e | 2993 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); |
a66098da | 2994 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
c2c2b12a LB |
2995 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); |
2996 | cmd->threshold = cpu_to_le16(rts_thresh); | |
a66098da LB |
2997 | |
2998 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2999 | kfree(cmd); | |
3000 | ||
a66098da LB |
3001 | return rc; |
3002 | } | |
3003 | ||
3004 | /* | |
55489b6e | 3005 | * CMD_SET_SLOT. |
a66098da | 3006 | */ |
55489b6e | 3007 | struct mwl8k_cmd_set_slot { |
a66098da LB |
3008 | struct mwl8k_cmd_pkt header; |
3009 | __le16 action; | |
55489b6e | 3010 | __u8 short_slot; |
ba2d3587 | 3011 | } __packed; |
a66098da | 3012 | |
55489b6e | 3013 | static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time) |
a66098da | 3014 | { |
55489b6e | 3015 | struct mwl8k_cmd_set_slot *cmd; |
a66098da LB |
3016 | int rc; |
3017 | ||
3018 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3019 | if (cmd == NULL) | |
3020 | return -ENOMEM; | |
3021 | ||
55489b6e | 3022 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); |
a66098da | 3023 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
3024 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); |
3025 | cmd->short_slot = short_slot_time; | |
a66098da LB |
3026 | |
3027 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3028 | kfree(cmd); | |
3029 | ||
3030 | return rc; | |
3031 | } | |
3032 | ||
3033 | /* | |
3034 | * CMD_SET_EDCA_PARAMS. | |
3035 | */ | |
3036 | struct mwl8k_cmd_set_edca_params { | |
3037 | struct mwl8k_cmd_pkt header; | |
3038 | ||
3039 | /* See MWL8K_SET_EDCA_XXX below */ | |
3040 | __le16 action; | |
3041 | ||
3042 | /* TX opportunity in units of 32 us */ | |
3043 | __le16 txop; | |
3044 | ||
2e484c89 LB |
3045 | union { |
3046 | struct { | |
3047 | /* Log exponent of max contention period: 0...15 */ | |
3048 | __le32 log_cw_max; | |
3049 | ||
3050 | /* Log exponent of min contention period: 0...15 */ | |
3051 | __le32 log_cw_min; | |
3052 | ||
3053 | /* Adaptive interframe spacing in units of 32us */ | |
3054 | __u8 aifs; | |
3055 | ||
3056 | /* TX queue to configure */ | |
3057 | __u8 txq; | |
3058 | } ap; | |
3059 | struct { | |
3060 | /* Log exponent of max contention period: 0...15 */ | |
3061 | __u8 log_cw_max; | |
a66098da | 3062 | |
2e484c89 LB |
3063 | /* Log exponent of min contention period: 0...15 */ |
3064 | __u8 log_cw_min; | |
a66098da | 3065 | |
2e484c89 LB |
3066 | /* Adaptive interframe spacing in units of 32us */ |
3067 | __u8 aifs; | |
a66098da | 3068 | |
2e484c89 LB |
3069 | /* TX queue to configure */ |
3070 | __u8 txq; | |
3071 | } sta; | |
3072 | }; | |
ba2d3587 | 3073 | } __packed; |
a66098da | 3074 | |
a66098da LB |
3075 | #define MWL8K_SET_EDCA_CW 0x01 |
3076 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
3077 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
3078 | ||
3079 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
3080 | MWL8K_SET_EDCA_TXOP | \ | |
3081 | MWL8K_SET_EDCA_AIFS) | |
3082 | ||
3083 | static int | |
55489b6e LB |
3084 | mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, |
3085 | __u16 cw_min, __u16 cw_max, | |
3086 | __u8 aifs, __u16 txop) | |
a66098da | 3087 | { |
2e484c89 | 3088 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 3089 | struct mwl8k_cmd_set_edca_params *cmd; |
a66098da LB |
3090 | int rc; |
3091 | ||
3092 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3093 | if (cmd == NULL) | |
3094 | return -ENOMEM; | |
3095 | ||
a66098da LB |
3096 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
3097 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
3098 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
3099 | cmd->txop = cpu_to_le16(txop); | |
2e484c89 LB |
3100 | if (priv->ap_fw) { |
3101 | cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1)); | |
3102 | cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1)); | |
3103 | cmd->ap.aifs = aifs; | |
3104 | cmd->ap.txq = qnum; | |
3105 | } else { | |
3106 | cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1); | |
3107 | cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1); | |
3108 | cmd->sta.aifs = aifs; | |
3109 | cmd->sta.txq = qnum; | |
3110 | } | |
a66098da LB |
3111 | |
3112 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3113 | kfree(cmd); | |
3114 | ||
3115 | return rc; | |
3116 | } | |
3117 | ||
3118 | /* | |
55489b6e | 3119 | * CMD_SET_WMM_MODE. |
a66098da | 3120 | */ |
55489b6e | 3121 | struct mwl8k_cmd_set_wmm_mode { |
a66098da | 3122 | struct mwl8k_cmd_pkt header; |
55489b6e | 3123 | __le16 action; |
ba2d3587 | 3124 | } __packed; |
a66098da | 3125 | |
55489b6e | 3126 | static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable) |
a66098da | 3127 | { |
55489b6e LB |
3128 | struct mwl8k_priv *priv = hw->priv; |
3129 | struct mwl8k_cmd_set_wmm_mode *cmd; | |
a66098da LB |
3130 | int rc; |
3131 | ||
a66098da LB |
3132 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
3133 | if (cmd == NULL) | |
3134 | return -ENOMEM; | |
3135 | ||
55489b6e | 3136 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); |
a66098da | 3137 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e | 3138 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
3139 | |
3140 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3141 | kfree(cmd); | |
16cec43d | 3142 | |
55489b6e LB |
3143 | if (!rc) |
3144 | priv->wmm_enabled = enable; | |
a66098da LB |
3145 | |
3146 | return rc; | |
3147 | } | |
3148 | ||
3149 | /* | |
55489b6e | 3150 | * CMD_MIMO_CONFIG. |
a66098da | 3151 | */ |
55489b6e LB |
3152 | struct mwl8k_cmd_mimo_config { |
3153 | struct mwl8k_cmd_pkt header; | |
3154 | __le32 action; | |
3155 | __u8 rx_antenna_map; | |
3156 | __u8 tx_antenna_map; | |
ba2d3587 | 3157 | } __packed; |
a66098da | 3158 | |
55489b6e | 3159 | static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) |
a66098da | 3160 | { |
55489b6e | 3161 | struct mwl8k_cmd_mimo_config *cmd; |
a66098da LB |
3162 | int rc; |
3163 | ||
3164 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3165 | if (cmd == NULL) | |
3166 | return -ENOMEM; | |
3167 | ||
55489b6e | 3168 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); |
a66098da | 3169 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
3170 | cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); |
3171 | cmd->rx_antenna_map = rx; | |
3172 | cmd->tx_antenna_map = tx; | |
a66098da LB |
3173 | |
3174 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3175 | kfree(cmd); | |
3176 | ||
3177 | return rc; | |
3178 | } | |
3179 | ||
3180 | /* | |
b71ed2c6 | 3181 | * CMD_USE_FIXED_RATE (STA version). |
a66098da | 3182 | */ |
b71ed2c6 LB |
3183 | struct mwl8k_cmd_use_fixed_rate_sta { |
3184 | struct mwl8k_cmd_pkt header; | |
3185 | __le32 action; | |
3186 | __le32 allow_rate_drop; | |
3187 | __le32 num_rates; | |
3188 | struct { | |
3189 | __le32 is_ht_rate; | |
3190 | __le32 enable_retry; | |
3191 | __le32 rate; | |
3192 | __le32 retry_count; | |
3193 | } rate_entry[8]; | |
3194 | __le32 rate_type; | |
3195 | __le32 reserved1; | |
3196 | __le32 reserved2; | |
ba2d3587 | 3197 | } __packed; |
a66098da | 3198 | |
b71ed2c6 LB |
3199 | #define MWL8K_USE_AUTO_RATE 0x0002 |
3200 | #define MWL8K_UCAST_RATE 0 | |
a66098da | 3201 | |
b71ed2c6 | 3202 | static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw) |
a66098da | 3203 | { |
b71ed2c6 | 3204 | struct mwl8k_cmd_use_fixed_rate_sta *cmd; |
a66098da LB |
3205 | int rc; |
3206 | ||
3207 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3208 | if (cmd == NULL) | |
3209 | return -ENOMEM; | |
3210 | ||
3211 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
3212 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
b71ed2c6 LB |
3213 | cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE); |
3214 | cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE); | |
a66098da LB |
3215 | |
3216 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3217 | kfree(cmd); | |
3218 | ||
3219 | return rc; | |
3220 | } | |
3221 | ||
088aab8b LB |
3222 | /* |
3223 | * CMD_USE_FIXED_RATE (AP version). | |
3224 | */ | |
3225 | struct mwl8k_cmd_use_fixed_rate_ap { | |
3226 | struct mwl8k_cmd_pkt header; | |
3227 | __le32 action; | |
3228 | __le32 allow_rate_drop; | |
3229 | __le32 num_rates; | |
3230 | struct mwl8k_rate_entry_ap { | |
3231 | __le32 is_ht_rate; | |
3232 | __le32 enable_retry; | |
3233 | __le32 rate; | |
3234 | __le32 retry_count; | |
3235 | } rate_entry[4]; | |
3236 | u8 multicast_rate; | |
3237 | u8 multicast_rate_type; | |
3238 | u8 management_rate; | |
ba2d3587 | 3239 | } __packed; |
088aab8b LB |
3240 | |
3241 | static int | |
3242 | mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt) | |
3243 | { | |
3244 | struct mwl8k_cmd_use_fixed_rate_ap *cmd; | |
3245 | int rc; | |
3246 | ||
3247 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3248 | if (cmd == NULL) | |
3249 | return -ENOMEM; | |
3250 | ||
3251 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
3252 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3253 | cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE); | |
3254 | cmd->multicast_rate = mcast; | |
3255 | cmd->management_rate = mgmt; | |
3256 | ||
3257 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3258 | kfree(cmd); | |
3259 | ||
3260 | return rc; | |
3261 | } | |
3262 | ||
55489b6e LB |
3263 | /* |
3264 | * CMD_ENABLE_SNIFFER. | |
3265 | */ | |
3266 | struct mwl8k_cmd_enable_sniffer { | |
3267 | struct mwl8k_cmd_pkt header; | |
3268 | __le32 action; | |
ba2d3587 | 3269 | } __packed; |
55489b6e LB |
3270 | |
3271 | static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable) | |
3272 | { | |
3273 | struct mwl8k_cmd_enable_sniffer *cmd; | |
3274 | int rc; | |
3275 | ||
3276 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3277 | if (cmd == NULL) | |
3278 | return -ENOMEM; | |
3279 | ||
3280 | cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); | |
3281 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3282 | cmd->action = cpu_to_le32(!!enable); | |
3283 | ||
3284 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3285 | kfree(cmd); | |
3286 | ||
3287 | return rc; | |
3288 | } | |
3289 | ||
3290 | /* | |
3291 | * CMD_SET_MAC_ADDR. | |
3292 | */ | |
3293 | struct mwl8k_cmd_set_mac_addr { | |
3294 | struct mwl8k_cmd_pkt header; | |
3295 | union { | |
3296 | struct { | |
3297 | __le16 mac_type; | |
3298 | __u8 mac_addr[ETH_ALEN]; | |
3299 | } mbss; | |
3300 | __u8 mac_addr[ETH_ALEN]; | |
3301 | }; | |
ba2d3587 | 3302 | } __packed; |
55489b6e | 3303 | |
ee0ddf18 LB |
3304 | #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0 |
3305 | #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1 | |
3306 | #define MWL8K_MAC_TYPE_PRIMARY_AP 2 | |
3307 | #define MWL8K_MAC_TYPE_SECONDARY_AP 3 | |
a9e00b15 | 3308 | |
aa21d0f6 LB |
3309 | static int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw, |
3310 | struct ieee80211_vif *vif, u8 *mac) | |
55489b6e LB |
3311 | { |
3312 | struct mwl8k_priv *priv = hw->priv; | |
ee0ddf18 | 3313 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); |
55489b6e | 3314 | struct mwl8k_cmd_set_mac_addr *cmd; |
ee0ddf18 | 3315 | int mac_type; |
55489b6e LB |
3316 | int rc; |
3317 | ||
ee0ddf18 LB |
3318 | mac_type = MWL8K_MAC_TYPE_PRIMARY_AP; |
3319 | if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) { | |
3320 | if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported)) | |
3321 | mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT; | |
3322 | else | |
3323 | mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT; | |
3324 | } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) { | |
3325 | if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported)) | |
3326 | mac_type = MWL8K_MAC_TYPE_PRIMARY_AP; | |
3327 | else | |
3328 | mac_type = MWL8K_MAC_TYPE_SECONDARY_AP; | |
3329 | } | |
3330 | ||
55489b6e LB |
3331 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
3332 | if (cmd == NULL) | |
3333 | return -ENOMEM; | |
3334 | ||
3335 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR); | |
3336 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3337 | if (priv->ap_fw) { | |
ee0ddf18 | 3338 | cmd->mbss.mac_type = cpu_to_le16(mac_type); |
55489b6e LB |
3339 | memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN); |
3340 | } else { | |
3341 | memcpy(cmd->mac_addr, mac, ETH_ALEN); | |
3342 | } | |
3343 | ||
aa21d0f6 | 3344 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
55489b6e LB |
3345 | kfree(cmd); |
3346 | ||
3347 | return rc; | |
3348 | } | |
3349 | ||
3350 | /* | |
3351 | * CMD_SET_RATEADAPT_MODE. | |
3352 | */ | |
3353 | struct mwl8k_cmd_set_rate_adapt_mode { | |
3354 | struct mwl8k_cmd_pkt header; | |
3355 | __le16 action; | |
3356 | __le16 mode; | |
ba2d3587 | 3357 | } __packed; |
55489b6e LB |
3358 | |
3359 | static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode) | |
3360 | { | |
3361 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
3362 | int rc; | |
3363 | ||
3364 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3365 | if (cmd == NULL) | |
3366 | return -ENOMEM; | |
3367 | ||
3368 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
3369 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3370 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
3371 | cmd->mode = cpu_to_le16(mode); | |
3372 | ||
3373 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3374 | kfree(cmd); | |
3375 | ||
3376 | return rc; | |
3377 | } | |
3378 | ||
3aefc37e NS |
3379 | /* |
3380 | * CMD_GET_WATCHDOG_BITMAP. | |
3381 | */ | |
3382 | struct mwl8k_cmd_get_watchdog_bitmap { | |
3383 | struct mwl8k_cmd_pkt header; | |
3384 | u8 bitmap; | |
3385 | } __packed; | |
3386 | ||
3387 | static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap) | |
3388 | { | |
3389 | struct mwl8k_cmd_get_watchdog_bitmap *cmd; | |
3390 | int rc; | |
3391 | ||
3392 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3393 | if (cmd == NULL) | |
3394 | return -ENOMEM; | |
3395 | ||
3396 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP); | |
3397 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3398 | ||
3399 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3400 | if (!rc) | |
3401 | *bitmap = cmd->bitmap; | |
3402 | ||
3403 | kfree(cmd); | |
3404 | ||
3405 | return rc; | |
3406 | } | |
3407 | ||
3408 | #define INVALID_BA 0xAA | |
3409 | static void mwl8k_watchdog_ba_events(struct work_struct *work) | |
3410 | { | |
3411 | int rc; | |
3412 | u8 bitmap = 0, stream_index; | |
3413 | struct mwl8k_ampdu_stream *streams; | |
3414 | struct mwl8k_priv *priv = | |
3415 | container_of(work, struct mwl8k_priv, watchdog_ba_handle); | |
3416 | ||
3417 | rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap); | |
3418 | if (rc) | |
3419 | return; | |
3420 | ||
3421 | if (bitmap == INVALID_BA) | |
3422 | return; | |
3423 | ||
3424 | /* the bitmap is the hw queue number. Map it to the ampdu queue. */ | |
3425 | stream_index = bitmap - MWL8K_TX_WMM_QUEUES; | |
3426 | ||
3427 | BUG_ON(stream_index >= priv->num_ampdu_queues); | |
3428 | ||
3429 | streams = &priv->ampdu[stream_index]; | |
3430 | ||
3431 | if (streams->state == AMPDU_STREAM_ACTIVE) | |
3432 | ieee80211_stop_tx_ba_session(streams->sta, streams->tid); | |
3433 | ||
3434 | return; | |
3435 | } | |
3436 | ||
3437 | ||
b64fe619 LB |
3438 | /* |
3439 | * CMD_BSS_START. | |
3440 | */ | |
3441 | struct mwl8k_cmd_bss_start { | |
3442 | struct mwl8k_cmd_pkt header; | |
3443 | __le32 enable; | |
ba2d3587 | 3444 | } __packed; |
b64fe619 | 3445 | |
aa21d0f6 LB |
3446 | static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw, |
3447 | struct ieee80211_vif *vif, int enable) | |
b64fe619 LB |
3448 | { |
3449 | struct mwl8k_cmd_bss_start *cmd; | |
3450 | int rc; | |
3451 | ||
3452 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3453 | if (cmd == NULL) | |
3454 | return -ENOMEM; | |
3455 | ||
3456 | cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START); | |
3457 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3458 | cmd->enable = cpu_to_le32(enable); | |
3459 | ||
aa21d0f6 | 3460 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
b64fe619 LB |
3461 | kfree(cmd); |
3462 | ||
3463 | return rc; | |
3464 | } | |
3465 | ||
5faa1aff NS |
3466 | /* |
3467 | * CMD_BASTREAM. | |
3468 | */ | |
3469 | ||
3470 | /* | |
3471 | * UPSTREAM is tx direction | |
3472 | */ | |
3473 | #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00 | |
3474 | #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01 | |
3475 | ||
3476 | enum { | |
3477 | MWL8K_BA_CREATE, | |
3478 | MWL8K_BA_UPDATE, | |
3479 | MWL8K_BA_DESTROY, | |
3480 | MWL8K_BA_FLUSH, | |
3481 | MWL8K_BA_CHECK, | |
3482 | } ba_stream_action_type; | |
3483 | ||
3484 | ||
3485 | struct mwl8k_create_ba_stream { | |
3486 | __le32 flags; | |
3487 | __le32 idle_thrs; | |
3488 | __le32 bar_thrs; | |
3489 | __le32 window_size; | |
3490 | u8 peer_mac_addr[6]; | |
3491 | u8 dialog_token; | |
3492 | u8 tid; | |
3493 | u8 queue_id; | |
3494 | u8 param_info; | |
3495 | __le32 ba_context; | |
3496 | u8 reset_seq_no_flag; | |
3497 | __le16 curr_seq_no; | |
3498 | u8 sta_src_mac_addr[6]; | |
3499 | } __packed; | |
3500 | ||
3501 | struct mwl8k_destroy_ba_stream { | |
3502 | __le32 flags; | |
3503 | __le32 ba_context; | |
3504 | } __packed; | |
3505 | ||
3506 | struct mwl8k_cmd_bastream { | |
3507 | struct mwl8k_cmd_pkt header; | |
3508 | __le32 action; | |
3509 | union { | |
3510 | struct mwl8k_create_ba_stream create_params; | |
3511 | struct mwl8k_destroy_ba_stream destroy_params; | |
3512 | }; | |
3513 | } __packed; | |
3514 | ||
3515 | static int | |
3516 | mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream) | |
3517 | { | |
3518 | struct mwl8k_cmd_bastream *cmd; | |
3519 | int rc; | |
3520 | ||
3521 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3522 | if (cmd == NULL) | |
3523 | return -ENOMEM; | |
3524 | ||
3525 | cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM); | |
3526 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3527 | ||
3528 | cmd->action = cpu_to_le32(MWL8K_BA_CHECK); | |
3529 | ||
3530 | cmd->create_params.queue_id = stream->idx; | |
3531 | memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr, | |
3532 | ETH_ALEN); | |
3533 | cmd->create_params.tid = stream->tid; | |
3534 | ||
3535 | cmd->create_params.flags = | |
3536 | cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) | | |
3537 | cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM); | |
3538 | ||
3539 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3540 | ||
3541 | kfree(cmd); | |
3542 | ||
3543 | return rc; | |
3544 | } | |
3545 | ||
3546 | static int | |
3547 | mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream, | |
3548 | u8 buf_size) | |
3549 | { | |
3550 | struct mwl8k_cmd_bastream *cmd; | |
3551 | int rc; | |
3552 | ||
3553 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3554 | if (cmd == NULL) | |
3555 | return -ENOMEM; | |
3556 | ||
3557 | ||
3558 | cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM); | |
3559 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3560 | ||
3561 | cmd->action = cpu_to_le32(MWL8K_BA_CREATE); | |
3562 | ||
3563 | cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size); | |
3564 | cmd->create_params.window_size = cpu_to_le32((u32)buf_size); | |
3565 | cmd->create_params.queue_id = stream->idx; | |
3566 | ||
3567 | memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN); | |
3568 | cmd->create_params.tid = stream->tid; | |
3569 | cmd->create_params.curr_seq_no = cpu_to_le16(0); | |
3570 | cmd->create_params.reset_seq_no_flag = 1; | |
3571 | ||
3572 | cmd->create_params.param_info = | |
3573 | (stream->sta->ht_cap.ampdu_factor & | |
3574 | IEEE80211_HT_AMPDU_PARM_FACTOR) | | |
3575 | ((stream->sta->ht_cap.ampdu_density << 2) & | |
3576 | IEEE80211_HT_AMPDU_PARM_DENSITY); | |
3577 | ||
3578 | cmd->create_params.flags = | |
3579 | cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE | | |
3580 | BASTREAM_FLAG_DIRECTION_UPSTREAM); | |
3581 | ||
3582 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
3583 | ||
3584 | wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n", | |
3585 | stream->sta->addr, stream->tid); | |
3586 | kfree(cmd); | |
3587 | ||
3588 | return rc; | |
3589 | } | |
3590 | ||
3591 | static void mwl8k_destroy_ba(struct ieee80211_hw *hw, | |
3592 | struct mwl8k_ampdu_stream *stream) | |
3593 | { | |
3594 | struct mwl8k_cmd_bastream *cmd; | |
3595 | ||
3596 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3597 | if (cmd == NULL) | |
3598 | return; | |
3599 | ||
3600 | cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM); | |
3601 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3602 | cmd->action = cpu_to_le32(MWL8K_BA_DESTROY); | |
3603 | ||
3604 | cmd->destroy_params.ba_context = cpu_to_le32(stream->idx); | |
3605 | mwl8k_post_cmd(hw, &cmd->header); | |
3606 | ||
3607 | wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", stream->idx); | |
3608 | ||
3609 | kfree(cmd); | |
3610 | } | |
3611 | ||
3f5610ff LB |
3612 | /* |
3613 | * CMD_SET_NEW_STN. | |
3614 | */ | |
3615 | struct mwl8k_cmd_set_new_stn { | |
3616 | struct mwl8k_cmd_pkt header; | |
3617 | __le16 aid; | |
3618 | __u8 mac_addr[6]; | |
3619 | __le16 stn_id; | |
3620 | __le16 action; | |
3621 | __le16 rsvd; | |
3622 | __le32 legacy_rates; | |
3623 | __u8 ht_rates[4]; | |
3624 | __le16 cap_info; | |
3625 | __le16 ht_capabilities_info; | |
3626 | __u8 mac_ht_param_info; | |
3627 | __u8 rev; | |
3628 | __u8 control_channel; | |
3629 | __u8 add_channel; | |
3630 | __le16 op_mode; | |
3631 | __le16 stbc; | |
3632 | __u8 add_qos_info; | |
3633 | __u8 is_qos_sta; | |
3634 | __le32 fw_sta_ptr; | |
ba2d3587 | 3635 | } __packed; |
3f5610ff LB |
3636 | |
3637 | #define MWL8K_STA_ACTION_ADD 0 | |
3638 | #define MWL8K_STA_ACTION_REMOVE 2 | |
3639 | ||
3640 | static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw, | |
3641 | struct ieee80211_vif *vif, | |
3642 | struct ieee80211_sta *sta) | |
3643 | { | |
3644 | struct mwl8k_cmd_set_new_stn *cmd; | |
8707d026 | 3645 | u32 rates; |
3f5610ff LB |
3646 | int rc; |
3647 | ||
3648 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3649 | if (cmd == NULL) | |
3650 | return -ENOMEM; | |
3651 | ||
3652 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN); | |
3653 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3654 | cmd->aid = cpu_to_le16(sta->aid); | |
3655 | memcpy(cmd->mac_addr, sta->addr, ETH_ALEN); | |
3656 | cmd->stn_id = cpu_to_le16(sta->aid); | |
3657 | cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD); | |
8707d026 LB |
3658 | if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) |
3659 | rates = sta->supp_rates[IEEE80211_BAND_2GHZ]; | |
3660 | else | |
3661 | rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5; | |
3662 | cmd->legacy_rates = cpu_to_le32(rates); | |
3f5610ff LB |
3663 | if (sta->ht_cap.ht_supported) { |
3664 | cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0]; | |
3665 | cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1]; | |
3666 | cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2]; | |
3667 | cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3]; | |
3668 | cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap); | |
3669 | cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) | | |
3670 | ((sta->ht_cap.ampdu_density & 7) << 2); | |
3671 | cmd->is_qos_sta = 1; | |
3672 | } | |
3673 | ||
aa21d0f6 | 3674 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
3f5610ff LB |
3675 | kfree(cmd); |
3676 | ||
3677 | return rc; | |
3678 | } | |
3679 | ||
b64fe619 LB |
3680 | static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw, |
3681 | struct ieee80211_vif *vif) | |
3682 | { | |
3683 | struct mwl8k_cmd_set_new_stn *cmd; | |
3684 | int rc; | |
3685 | ||
3686 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3687 | if (cmd == NULL) | |
3688 | return -ENOMEM; | |
3689 | ||
3690 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN); | |
3691 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3692 | memcpy(cmd->mac_addr, vif->addr, ETH_ALEN); | |
3693 | ||
aa21d0f6 | 3694 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
b64fe619 LB |
3695 | kfree(cmd); |
3696 | ||
3697 | return rc; | |
3698 | } | |
3699 | ||
3f5610ff LB |
3700 | static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw, |
3701 | struct ieee80211_vif *vif, u8 *addr) | |
3702 | { | |
3703 | struct mwl8k_cmd_set_new_stn *cmd; | |
3704 | int rc; | |
3705 | ||
3706 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3707 | if (cmd == NULL) | |
3708 | return -ENOMEM; | |
3709 | ||
3710 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN); | |
3711 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3712 | memcpy(cmd->mac_addr, addr, ETH_ALEN); | |
3713 | cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE); | |
3714 | ||
aa21d0f6 | 3715 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); |
3f5610ff LB |
3716 | kfree(cmd); |
3717 | ||
3718 | return rc; | |
3719 | } | |
3720 | ||
fcdc403c NS |
3721 | /* |
3722 | * CMD_UPDATE_ENCRYPTION. | |
3723 | */ | |
3724 | ||
3725 | #define MAX_ENCR_KEY_LENGTH 16 | |
3726 | #define MIC_KEY_LENGTH 8 | |
3727 | ||
3728 | struct mwl8k_cmd_update_encryption { | |
3729 | struct mwl8k_cmd_pkt header; | |
3730 | ||
3731 | __le32 action; | |
3732 | __le32 reserved; | |
3733 | __u8 mac_addr[6]; | |
3734 | __u8 encr_type; | |
3735 | ||
3736 | } __attribute__((packed)); | |
3737 | ||
3738 | struct mwl8k_cmd_set_key { | |
3739 | struct mwl8k_cmd_pkt header; | |
3740 | ||
3741 | __le32 action; | |
3742 | __le32 reserved; | |
3743 | __le16 length; | |
3744 | __le16 key_type_id; | |
3745 | __le32 key_info; | |
3746 | __le32 key_id; | |
3747 | __le16 key_len; | |
3748 | __u8 key_material[MAX_ENCR_KEY_LENGTH]; | |
3749 | __u8 tkip_tx_mic_key[MIC_KEY_LENGTH]; | |
3750 | __u8 tkip_rx_mic_key[MIC_KEY_LENGTH]; | |
3751 | __le16 tkip_rsc_low; | |
3752 | __le32 tkip_rsc_high; | |
3753 | __le16 tkip_tsc_low; | |
3754 | __le32 tkip_tsc_high; | |
3755 | __u8 mac_addr[6]; | |
3756 | } __attribute__((packed)); | |
3757 | ||
3758 | enum { | |
3759 | MWL8K_ENCR_ENABLE, | |
3760 | MWL8K_ENCR_SET_KEY, | |
3761 | MWL8K_ENCR_REMOVE_KEY, | |
3762 | MWL8K_ENCR_SET_GROUP_KEY, | |
3763 | }; | |
3764 | ||
3765 | #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0 | |
3766 | #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1 | |
3767 | #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4 | |
3768 | #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7 | |
3769 | #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8 | |
3770 | ||
3771 | enum { | |
3772 | MWL8K_ALG_WEP, | |
3773 | MWL8K_ALG_TKIP, | |
3774 | MWL8K_ALG_CCMP, | |
3775 | }; | |
3776 | ||
3777 | #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004 | |
3778 | #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008 | |
3779 | #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040 | |
3780 | #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000 | |
3781 | #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000 | |
3782 | ||
3783 | static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw, | |
3784 | struct ieee80211_vif *vif, | |
3785 | u8 *addr, | |
3786 | u8 encr_type) | |
3787 | { | |
3788 | struct mwl8k_cmd_update_encryption *cmd; | |
3789 | int rc; | |
3790 | ||
3791 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3792 | if (cmd == NULL) | |
3793 | return -ENOMEM; | |
3794 | ||
3795 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION); | |
3796 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3797 | cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE); | |
3798 | memcpy(cmd->mac_addr, addr, ETH_ALEN); | |
3799 | cmd->encr_type = encr_type; | |
3800 | ||
3801 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); | |
3802 | kfree(cmd); | |
3803 | ||
3804 | return rc; | |
3805 | } | |
3806 | ||
3807 | static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd, | |
3808 | u8 *addr, | |
3809 | struct ieee80211_key_conf *key) | |
3810 | { | |
3811 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION); | |
3812 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
3813 | cmd->length = cpu_to_le16(sizeof(*cmd) - | |
3814 | offsetof(struct mwl8k_cmd_set_key, length)); | |
3815 | cmd->key_id = cpu_to_le32(key->keyidx); | |
3816 | cmd->key_len = cpu_to_le16(key->keylen); | |
3817 | memcpy(cmd->mac_addr, addr, ETH_ALEN); | |
3818 | ||
3819 | switch (key->cipher) { | |
3820 | case WLAN_CIPHER_SUITE_WEP40: | |
3821 | case WLAN_CIPHER_SUITE_WEP104: | |
3822 | cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP); | |
3823 | if (key->keyidx == 0) | |
3824 | cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY); | |
3825 | ||
3826 | break; | |
3827 | case WLAN_CIPHER_SUITE_TKIP: | |
3828 | cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP); | |
3829 | cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
3830 | ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE) | |
3831 | : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY); | |
3832 | cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID | |
3833 | | MWL8K_KEY_FLAG_TSC_VALID); | |
3834 | break; | |
3835 | case WLAN_CIPHER_SUITE_CCMP: | |
3836 | cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP); | |
3837 | cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
3838 | ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE) | |
3839 | : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY); | |
3840 | break; | |
3841 | default: | |
3842 | return -ENOTSUPP; | |
3843 | } | |
3844 | ||
3845 | return 0; | |
3846 | } | |
3847 | ||
3848 | static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw, | |
3849 | struct ieee80211_vif *vif, | |
3850 | u8 *addr, | |
3851 | struct ieee80211_key_conf *key) | |
3852 | { | |
3853 | struct mwl8k_cmd_set_key *cmd; | |
3854 | int rc; | |
3855 | int keymlen; | |
3856 | u32 action; | |
3857 | u8 idx; | |
3858 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3859 | ||
3860 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3861 | if (cmd == NULL) | |
3862 | return -ENOMEM; | |
3863 | ||
3864 | rc = mwl8k_encryption_set_cmd_info(cmd, addr, key); | |
3865 | if (rc < 0) | |
3866 | goto done; | |
3867 | ||
3868 | idx = key->keyidx; | |
3869 | ||
3870 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
3871 | action = MWL8K_ENCR_SET_KEY; | |
3872 | else | |
3873 | action = MWL8K_ENCR_SET_GROUP_KEY; | |
3874 | ||
3875 | switch (key->cipher) { | |
3876 | case WLAN_CIPHER_SUITE_WEP40: | |
3877 | case WLAN_CIPHER_SUITE_WEP104: | |
3878 | if (!mwl8k_vif->wep_key_conf[idx].enabled) { | |
3879 | memcpy(mwl8k_vif->wep_key_conf[idx].key, key, | |
3880 | sizeof(*key) + key->keylen); | |
3881 | mwl8k_vif->wep_key_conf[idx].enabled = 1; | |
3882 | } | |
3883 | ||
3884 | keymlen = 0; | |
3885 | action = MWL8K_ENCR_SET_KEY; | |
3886 | break; | |
3887 | case WLAN_CIPHER_SUITE_TKIP: | |
3888 | keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH; | |
3889 | break; | |
3890 | case WLAN_CIPHER_SUITE_CCMP: | |
3891 | keymlen = key->keylen; | |
3892 | break; | |
3893 | default: | |
3894 | rc = -ENOTSUPP; | |
3895 | goto done; | |
3896 | } | |
3897 | ||
3898 | memcpy(cmd->key_material, key->key, keymlen); | |
3899 | cmd->action = cpu_to_le32(action); | |
3900 | ||
3901 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); | |
3902 | done: | |
3903 | kfree(cmd); | |
3904 | ||
3905 | return rc; | |
3906 | } | |
3907 | ||
3908 | static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw, | |
3909 | struct ieee80211_vif *vif, | |
3910 | u8 *addr, | |
3911 | struct ieee80211_key_conf *key) | |
3912 | { | |
3913 | struct mwl8k_cmd_set_key *cmd; | |
3914 | int rc; | |
3915 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3916 | ||
3917 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
3918 | if (cmd == NULL) | |
3919 | return -ENOMEM; | |
3920 | ||
3921 | rc = mwl8k_encryption_set_cmd_info(cmd, addr, key); | |
3922 | if (rc < 0) | |
3923 | goto done; | |
3924 | ||
3925 | if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3926 | WLAN_CIPHER_SUITE_WEP104) | |
3927 | mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0; | |
3928 | ||
3929 | cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY); | |
3930 | ||
3931 | rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header); | |
3932 | done: | |
3933 | kfree(cmd); | |
3934 | ||
3935 | return rc; | |
3936 | } | |
3937 | ||
3938 | static int mwl8k_set_key(struct ieee80211_hw *hw, | |
3939 | enum set_key_cmd cmd_param, | |
3940 | struct ieee80211_vif *vif, | |
3941 | struct ieee80211_sta *sta, | |
3942 | struct ieee80211_key_conf *key) | |
3943 | { | |
3944 | int rc = 0; | |
3945 | u8 encr_type; | |
3946 | u8 *addr; | |
3947 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3948 | ||
3949 | if (vif->type == NL80211_IFTYPE_STATION) | |
3950 | return -EOPNOTSUPP; | |
3951 | ||
3952 | if (sta == NULL) | |
3953 | addr = hw->wiphy->perm_addr; | |
3954 | else | |
3955 | addr = sta->addr; | |
3956 | ||
3957 | if (cmd_param == SET_KEY) { | |
3958 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
3959 | rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key); | |
3960 | if (rc) | |
3961 | goto out; | |
3962 | ||
3963 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40) | |
3964 | || (key->cipher == WLAN_CIPHER_SUITE_WEP104)) | |
3965 | encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP; | |
3966 | else | |
3967 | encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED; | |
3968 | ||
3969 | rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr, | |
3970 | encr_type); | |
3971 | if (rc) | |
3972 | goto out; | |
3973 | ||
3974 | mwl8k_vif->is_hw_crypto_enabled = true; | |
3975 | ||
3976 | } else { | |
3977 | rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key); | |
3978 | ||
3979 | if (rc) | |
3980 | goto out; | |
3981 | ||
3982 | mwl8k_vif->is_hw_crypto_enabled = false; | |
3983 | ||
3984 | } | |
3985 | out: | |
3986 | return rc; | |
3987 | } | |
3988 | ||
55489b6e LB |
3989 | /* |
3990 | * CMD_UPDATE_STADB. | |
3991 | */ | |
25d81b1e LB |
3992 | struct ewc_ht_info { |
3993 | __le16 control1; | |
3994 | __le16 control2; | |
3995 | __le16 control3; | |
ba2d3587 | 3996 | } __packed; |
25d81b1e LB |
3997 | |
3998 | struct peer_capability_info { | |
3999 | /* Peer type - AP vs. STA. */ | |
4000 | __u8 peer_type; | |
4001 | ||
4002 | /* Basic 802.11 capabilities from assoc resp. */ | |
4003 | __le16 basic_caps; | |
4004 | ||
4005 | /* Set if peer supports 802.11n high throughput (HT). */ | |
4006 | __u8 ht_support; | |
4007 | ||
4008 | /* Valid if HT is supported. */ | |
4009 | __le16 ht_caps; | |
4010 | __u8 extended_ht_caps; | |
4011 | struct ewc_ht_info ewc_info; | |
4012 | ||
4013 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
4014 | __u8 legacy_rates[12]; | |
4015 | ||
4016 | /* HT rate table. Intersection of our rates and peer rates. */ | |
4017 | __u8 ht_rates[16]; | |
4018 | __u8 pad[16]; | |
4019 | ||
4020 | /* If set, interoperability mode, no proprietary extensions. */ | |
4021 | __u8 interop; | |
4022 | __u8 pad2; | |
4023 | __u8 station_id; | |
4024 | __le16 amsdu_enabled; | |
ba2d3587 | 4025 | } __packed; |
25d81b1e | 4026 | |
55489b6e LB |
4027 | struct mwl8k_cmd_update_stadb { |
4028 | struct mwl8k_cmd_pkt header; | |
4029 | ||
4030 | /* See STADB_ACTION_TYPE */ | |
4031 | __le32 action; | |
4032 | ||
4033 | /* Peer MAC address */ | |
4034 | __u8 peer_addr[ETH_ALEN]; | |
4035 | ||
4036 | __le32 reserved; | |
4037 | ||
4038 | /* Peer info - valid during add/update. */ | |
4039 | struct peer_capability_info peer_info; | |
ba2d3587 | 4040 | } __packed; |
55489b6e | 4041 | |
a680400e LB |
4042 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 |
4043 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
4044 | ||
4045 | /* Peer Entry flags - used to define the type of the peer node */ | |
4046 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
4047 | ||
4048 | static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, | |
c6e96010 | 4049 | struct ieee80211_vif *vif, |
13935e2c | 4050 | struct ieee80211_sta *sta) |
55489b6e | 4051 | { |
55489b6e | 4052 | struct mwl8k_cmd_update_stadb *cmd; |
a680400e | 4053 | struct peer_capability_info *p; |
8707d026 | 4054 | u32 rates; |
55489b6e LB |
4055 | int rc; |
4056 | ||
4057 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
4058 | if (cmd == NULL) | |
4059 | return -ENOMEM; | |
4060 | ||
4061 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
4062 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a680400e | 4063 | cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY); |
13935e2c | 4064 | memcpy(cmd->peer_addr, sta->addr, ETH_ALEN); |
55489b6e | 4065 | |
a680400e LB |
4066 | p = &cmd->peer_info; |
4067 | p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
4068 | p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability); | |
13935e2c | 4069 | p->ht_support = sta->ht_cap.ht_supported; |
b603742f | 4070 | p->ht_caps = cpu_to_le16(sta->ht_cap.cap); |
13935e2c LB |
4071 | p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) | |
4072 | ((sta->ht_cap.ampdu_density & 7) << 2); | |
8707d026 LB |
4073 | if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) |
4074 | rates = sta->supp_rates[IEEE80211_BAND_2GHZ]; | |
4075 | else | |
4076 | rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5; | |
4077 | legacy_rate_mask_to_array(p->legacy_rates, rates); | |
13935e2c | 4078 | memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16); |
a680400e LB |
4079 | p->interop = 1; |
4080 | p->amsdu_enabled = 0; | |
4081 | ||
4082 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
4083 | kfree(cmd); | |
4084 | ||
4085 | return rc ? rc : p->station_id; | |
4086 | } | |
4087 | ||
4088 | static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw, | |
4089 | struct ieee80211_vif *vif, u8 *addr) | |
4090 | { | |
4091 | struct mwl8k_cmd_update_stadb *cmd; | |
4092 | int rc; | |
4093 | ||
4094 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
4095 | if (cmd == NULL) | |
4096 | return -ENOMEM; | |
4097 | ||
4098 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
4099 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
4100 | cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY); | |
bbfd9128 | 4101 | memcpy(cmd->peer_addr, addr, ETH_ALEN); |
55489b6e | 4102 | |
a680400e | 4103 | rc = mwl8k_post_cmd(hw, &cmd->header); |
55489b6e LB |
4104 | kfree(cmd); |
4105 | ||
4106 | return rc; | |
4107 | } | |
4108 | ||
a66098da LB |
4109 | |
4110 | /* | |
4111 | * Interrupt handling. | |
4112 | */ | |
4113 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
4114 | { | |
4115 | struct ieee80211_hw *hw = dev_id; | |
4116 | struct mwl8k_priv *priv = hw->priv; | |
4117 | u32 status; | |
4118 | ||
4119 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
a66098da LB |
4120 | if (!status) |
4121 | return IRQ_NONE; | |
4122 | ||
1e9f9de3 LB |
4123 | if (status & MWL8K_A2H_INT_TX_DONE) { |
4124 | status &= ~MWL8K_A2H_INT_TX_DONE; | |
4125 | tasklet_schedule(&priv->poll_tx_task); | |
4126 | } | |
4127 | ||
a66098da | 4128 | if (status & MWL8K_A2H_INT_RX_READY) { |
67e2eb27 LB |
4129 | status &= ~MWL8K_A2H_INT_RX_READY; |
4130 | tasklet_schedule(&priv->poll_rx_task); | |
a66098da LB |
4131 | } |
4132 | ||
3aefc37e NS |
4133 | if (status & MWL8K_A2H_INT_BA_WATCHDOG) { |
4134 | status &= ~MWL8K_A2H_INT_BA_WATCHDOG; | |
4135 | ieee80211_queue_work(hw, &priv->watchdog_ba_handle); | |
4136 | } | |
4137 | ||
67e2eb27 LB |
4138 | if (status) |
4139 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
4140 | ||
a66098da | 4141 | if (status & MWL8K_A2H_INT_OPC_DONE) { |
618952a7 | 4142 | if (priv->hostcmd_wait != NULL) |
a66098da | 4143 | complete(priv->hostcmd_wait); |
a66098da LB |
4144 | } |
4145 | ||
4146 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 4147 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 4148 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 4149 | mwl8k_tx_start(priv); |
a66098da LB |
4150 | } |
4151 | ||
4152 | return IRQ_HANDLED; | |
4153 | } | |
4154 | ||
1e9f9de3 LB |
4155 | static void mwl8k_tx_poll(unsigned long data) |
4156 | { | |
4157 | struct ieee80211_hw *hw = (struct ieee80211_hw *)data; | |
4158 | struct mwl8k_priv *priv = hw->priv; | |
4159 | int limit; | |
4160 | int i; | |
4161 | ||
4162 | limit = 32; | |
4163 | ||
4164 | spin_lock_bh(&priv->tx_lock); | |
4165 | ||
e600707b | 4166 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
1e9f9de3 LB |
4167 | limit -= mwl8k_txq_reclaim(hw, i, limit, 0); |
4168 | ||
4169 | if (!priv->pending_tx_pkts && priv->tx_wait != NULL) { | |
4170 | complete(priv->tx_wait); | |
4171 | priv->tx_wait = NULL; | |
4172 | } | |
4173 | ||
4174 | spin_unlock_bh(&priv->tx_lock); | |
4175 | ||
4176 | if (limit) { | |
4177 | writel(~MWL8K_A2H_INT_TX_DONE, | |
4178 | priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
4179 | } else { | |
4180 | tasklet_schedule(&priv->poll_tx_task); | |
4181 | } | |
4182 | } | |
4183 | ||
67e2eb27 LB |
4184 | static void mwl8k_rx_poll(unsigned long data) |
4185 | { | |
4186 | struct ieee80211_hw *hw = (struct ieee80211_hw *)data; | |
4187 | struct mwl8k_priv *priv = hw->priv; | |
4188 | int limit; | |
4189 | ||
4190 | limit = 32; | |
4191 | limit -= rxq_process(hw, 0, limit); | |
4192 | limit -= rxq_refill(hw, 0, limit); | |
4193 | ||
4194 | if (limit) { | |
4195 | writel(~MWL8K_A2H_INT_RX_READY, | |
4196 | priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
4197 | } else { | |
4198 | tasklet_schedule(&priv->poll_rx_task); | |
4199 | } | |
4200 | } | |
4201 | ||
a66098da LB |
4202 | |
4203 | /* | |
4204 | * Core driver operations. | |
4205 | */ | |
7bb45683 | 4206 | static void mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
a66098da LB |
4207 | { |
4208 | struct mwl8k_priv *priv = hw->priv; | |
4209 | int index = skb_get_queue_mapping(skb); | |
a66098da | 4210 | |
9189c100 | 4211 | if (!priv->radio_on) { |
c96c31e4 JP |
4212 | wiphy_debug(hw->wiphy, |
4213 | "dropped TX frame since radio disabled\n"); | |
a66098da | 4214 | dev_kfree_skb(skb); |
7bb45683 | 4215 | return; |
a66098da LB |
4216 | } |
4217 | ||
7bb45683 | 4218 | mwl8k_txq_xmit(hw, index, skb); |
a66098da LB |
4219 | } |
4220 | ||
a66098da LB |
4221 | static int mwl8k_start(struct ieee80211_hw *hw) |
4222 | { | |
a66098da LB |
4223 | struct mwl8k_priv *priv = hw->priv; |
4224 | int rc; | |
4225 | ||
a0607fd3 | 4226 | rc = request_irq(priv->pdev->irq, mwl8k_interrupt, |
a66098da LB |
4227 | IRQF_SHARED, MWL8K_NAME, hw); |
4228 | if (rc) { | |
5db55844 | 4229 | wiphy_err(hw->wiphy, "failed to register IRQ handler\n"); |
2ec610cb | 4230 | return -EIO; |
a66098da LB |
4231 | } |
4232 | ||
67e2eb27 | 4233 | /* Enable TX reclaim and RX tasklets. */ |
1e9f9de3 | 4234 | tasklet_enable(&priv->poll_tx_task); |
67e2eb27 | 4235 | tasklet_enable(&priv->poll_rx_task); |
2ec610cb | 4236 | |
a66098da | 4237 | /* Enable interrupts */ |
c23b5a69 | 4238 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 4239 | |
2ec610cb LB |
4240 | rc = mwl8k_fw_lock(hw); |
4241 | if (!rc) { | |
55489b6e | 4242 | rc = mwl8k_cmd_radio_enable(hw); |
a66098da | 4243 | |
5e4cf166 LB |
4244 | if (!priv->ap_fw) { |
4245 | if (!rc) | |
55489b6e | 4246 | rc = mwl8k_cmd_enable_sniffer(hw, 0); |
a66098da | 4247 | |
5e4cf166 LB |
4248 | if (!rc) |
4249 | rc = mwl8k_cmd_set_pre_scan(hw); | |
4250 | ||
4251 | if (!rc) | |
4252 | rc = mwl8k_cmd_set_post_scan(hw, | |
4253 | "\x00\x00\x00\x00\x00\x00"); | |
4254 | } | |
2ec610cb LB |
4255 | |
4256 | if (!rc) | |
55489b6e | 4257 | rc = mwl8k_cmd_set_rateadapt_mode(hw, 0); |
a66098da | 4258 | |
2ec610cb | 4259 | if (!rc) |
55489b6e | 4260 | rc = mwl8k_cmd_set_wmm_mode(hw, 0); |
a66098da | 4261 | |
2ec610cb LB |
4262 | mwl8k_fw_unlock(hw); |
4263 | } | |
4264 | ||
4265 | if (rc) { | |
4266 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
4267 | free_irq(priv->pdev->irq, hw); | |
1e9f9de3 | 4268 | tasklet_disable(&priv->poll_tx_task); |
67e2eb27 | 4269 | tasklet_disable(&priv->poll_rx_task); |
2ec610cb | 4270 | } |
a66098da LB |
4271 | |
4272 | return rc; | |
4273 | } | |
4274 | ||
a66098da LB |
4275 | static void mwl8k_stop(struct ieee80211_hw *hw) |
4276 | { | |
a66098da LB |
4277 | struct mwl8k_priv *priv = hw->priv; |
4278 | int i; | |
4279 | ||
55489b6e | 4280 | mwl8k_cmd_radio_disable(hw); |
a66098da LB |
4281 | |
4282 | ieee80211_stop_queues(hw); | |
4283 | ||
a66098da | 4284 | /* Disable interrupts */ |
a66098da | 4285 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
4286 | free_irq(priv->pdev->irq, hw); |
4287 | ||
4288 | /* Stop finalize join worker */ | |
4289 | cancel_work_sync(&priv->finalize_join_worker); | |
3aefc37e | 4290 | cancel_work_sync(&priv->watchdog_ba_handle); |
a66098da LB |
4291 | if (priv->beacon_skb != NULL) |
4292 | dev_kfree_skb(priv->beacon_skb); | |
4293 | ||
67e2eb27 | 4294 | /* Stop TX reclaim and RX tasklets. */ |
1e9f9de3 | 4295 | tasklet_disable(&priv->poll_tx_task); |
67e2eb27 | 4296 | tasklet_disable(&priv->poll_rx_task); |
a66098da | 4297 | |
a66098da | 4298 | /* Return all skbs to mac80211 */ |
e600707b | 4299 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
efb7c49a | 4300 | mwl8k_txq_reclaim(hw, i, INT_MAX, 1); |
a66098da LB |
4301 | } |
4302 | ||
0863ade8 BC |
4303 | static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image); |
4304 | ||
a66098da | 4305 | static int mwl8k_add_interface(struct ieee80211_hw *hw, |
f5bb87cf | 4306 | struct ieee80211_vif *vif) |
a66098da LB |
4307 | { |
4308 | struct mwl8k_priv *priv = hw->priv; | |
4309 | struct mwl8k_vif *mwl8k_vif; | |
ee0ddf18 | 4310 | u32 macids_supported; |
0863ade8 BC |
4311 | int macid, rc; |
4312 | struct mwl8k_device_info *di; | |
a66098da | 4313 | |
a43c49a8 LB |
4314 | /* |
4315 | * Reject interface creation if sniffer mode is active, as | |
4316 | * STA operation is mutually exclusive with hardware sniffer | |
b64fe619 | 4317 | * mode. (Sniffer mode is only used on STA firmware.) |
a43c49a8 LB |
4318 | */ |
4319 | if (priv->sniffer_enabled) { | |
c96c31e4 JP |
4320 | wiphy_info(hw->wiphy, |
4321 | "unable to create STA interface because sniffer mode is enabled\n"); | |
a43c49a8 LB |
4322 | return -EINVAL; |
4323 | } | |
4324 | ||
0863ade8 | 4325 | di = priv->device_info; |
ee0ddf18 LB |
4326 | switch (vif->type) { |
4327 | case NL80211_IFTYPE_AP: | |
0863ade8 BC |
4328 | if (!priv->ap_fw && di->fw_image_ap) { |
4329 | /* we must load the ap fw to meet this request */ | |
4330 | if (!list_empty(&priv->vif_list)) | |
4331 | return -EBUSY; | |
4332 | rc = mwl8k_reload_firmware(hw, di->fw_image_ap); | |
4333 | if (rc) | |
4334 | return rc; | |
4335 | } | |
ee0ddf18 LB |
4336 | macids_supported = priv->ap_macids_supported; |
4337 | break; | |
4338 | case NL80211_IFTYPE_STATION: | |
0863ade8 BC |
4339 | if (priv->ap_fw && di->fw_image_sta) { |
4340 | /* we must load the sta fw to meet this request */ | |
4341 | if (!list_empty(&priv->vif_list)) | |
4342 | return -EBUSY; | |
4343 | rc = mwl8k_reload_firmware(hw, di->fw_image_sta); | |
4344 | if (rc) | |
4345 | return rc; | |
4346 | } | |
ee0ddf18 LB |
4347 | macids_supported = priv->sta_macids_supported; |
4348 | break; | |
4349 | default: | |
4350 | return -EINVAL; | |
4351 | } | |
4352 | ||
4353 | macid = ffs(macids_supported & ~priv->macids_used); | |
4354 | if (!macid--) | |
4355 | return -EBUSY; | |
4356 | ||
f5bb87cf | 4357 | /* Setup driver private area. */ |
1ed32e4f | 4358 | mwl8k_vif = MWL8K_VIF(vif); |
a66098da | 4359 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); |
f5bb87cf | 4360 | mwl8k_vif->vif = vif; |
ee0ddf18 | 4361 | mwl8k_vif->macid = macid; |
a66098da | 4362 | mwl8k_vif->seqno = 0; |
d9a07d49 NS |
4363 | memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN); |
4364 | mwl8k_vif->is_hw_crypto_enabled = false; | |
a66098da | 4365 | |
aa21d0f6 LB |
4366 | /* Set the mac address. */ |
4367 | mwl8k_cmd_set_mac_addr(hw, vif, vif->addr); | |
4368 | ||
4369 | if (priv->ap_fw) | |
4370 | mwl8k_cmd_set_new_stn_add_self(hw, vif); | |
4371 | ||
ee0ddf18 | 4372 | priv->macids_used |= 1 << mwl8k_vif->macid; |
f5bb87cf | 4373 | list_add_tail(&mwl8k_vif->list, &priv->vif_list); |
a66098da LB |
4374 | |
4375 | return 0; | |
4376 | } | |
4377 | ||
4378 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 4379 | struct ieee80211_vif *vif) |
a66098da LB |
4380 | { |
4381 | struct mwl8k_priv *priv = hw->priv; | |
f5bb87cf | 4382 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); |
a66098da | 4383 | |
b64fe619 LB |
4384 | if (priv->ap_fw) |
4385 | mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr); | |
4386 | ||
aa21d0f6 | 4387 | mwl8k_cmd_set_mac_addr(hw, vif, "\x00\x00\x00\x00\x00\x00"); |
32060e1b | 4388 | |
ee0ddf18 | 4389 | priv->macids_used &= ~(1 << mwl8k_vif->macid); |
f5bb87cf | 4390 | list_del(&mwl8k_vif->list); |
a66098da LB |
4391 | } |
4392 | ||
ee03a932 | 4393 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 4394 | { |
a66098da LB |
4395 | struct ieee80211_conf *conf = &hw->conf; |
4396 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 4397 | int rc; |
a66098da | 4398 | |
7595d67a | 4399 | if (conf->flags & IEEE80211_CONF_IDLE) { |
55489b6e | 4400 | mwl8k_cmd_radio_disable(hw); |
ee03a932 | 4401 | return 0; |
7595d67a LB |
4402 | } |
4403 | ||
ee03a932 LB |
4404 | rc = mwl8k_fw_lock(hw); |
4405 | if (rc) | |
4406 | return rc; | |
a66098da | 4407 | |
55489b6e | 4408 | rc = mwl8k_cmd_radio_enable(hw); |
ee03a932 LB |
4409 | if (rc) |
4410 | goto out; | |
a66098da | 4411 | |
610677d2 | 4412 | rc = mwl8k_cmd_set_rf_channel(hw, conf); |
ee03a932 LB |
4413 | if (rc) |
4414 | goto out; | |
4415 | ||
a66098da LB |
4416 | if (conf->power_level > 18) |
4417 | conf->power_level = 18; | |
a66098da | 4418 | |
08b06347 | 4419 | if (priv->ap_fw) { |
41fdf097 NS |
4420 | rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level); |
4421 | if (rc) | |
4422 | goto out; | |
4423 | ||
da62b761 NS |
4424 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3); |
4425 | if (rc) | |
4426 | wiphy_warn(hw->wiphy, "failed to set # of RX antennas"); | |
4427 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7); | |
4428 | if (rc) | |
4429 | wiphy_warn(hw->wiphy, "failed to set # of TX antennas"); | |
4430 | ||
08b06347 | 4431 | } else { |
41fdf097 NS |
4432 | rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level); |
4433 | if (rc) | |
4434 | goto out; | |
08b06347 LB |
4435 | rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7); |
4436 | } | |
a66098da | 4437 | |
ee03a932 LB |
4438 | out: |
4439 | mwl8k_fw_unlock(hw); | |
a66098da | 4440 | |
ee03a932 | 4441 | return rc; |
a66098da LB |
4442 | } |
4443 | ||
b64fe619 LB |
4444 | static void |
4445 | mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
4446 | struct ieee80211_bss_conf *info, u32 changed) | |
a66098da | 4447 | { |
a66098da | 4448 | struct mwl8k_priv *priv = hw->priv; |
c3cbbe8a | 4449 | u32 ap_legacy_rates; |
13935e2c | 4450 | u8 ap_mcs_rates[16]; |
3a980d0a LB |
4451 | int rc; |
4452 | ||
c3cbbe8a | 4453 | if (mwl8k_fw_lock(hw)) |
3a980d0a | 4454 | return; |
a66098da | 4455 | |
c3cbbe8a LB |
4456 | /* |
4457 | * No need to capture a beacon if we're no longer associated. | |
4458 | */ | |
4459 | if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc) | |
4460 | priv->capture_beacon = false; | |
3a980d0a | 4461 | |
c3cbbe8a | 4462 | /* |
13935e2c | 4463 | * Get the AP's legacy and MCS rates. |
c3cbbe8a | 4464 | */ |
7dc6a7a7 | 4465 | if (vif->bss_conf.assoc) { |
c6e96010 | 4466 | struct ieee80211_sta *ap; |
c97470dd | 4467 | |
c6e96010 | 4468 | rcu_read_lock(); |
c6e96010 | 4469 | |
c3cbbe8a LB |
4470 | ap = ieee80211_find_sta(vif, vif->bss_conf.bssid); |
4471 | if (ap == NULL) { | |
4472 | rcu_read_unlock(); | |
c6e96010 | 4473 | goto out; |
c3cbbe8a LB |
4474 | } |
4475 | ||
8707d026 LB |
4476 | if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) { |
4477 | ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ]; | |
4478 | } else { | |
4479 | ap_legacy_rates = | |
4480 | ap->supp_rates[IEEE80211_BAND_5GHZ] << 5; | |
4481 | } | |
13935e2c | 4482 | memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16); |
c3cbbe8a LB |
4483 | |
4484 | rcu_read_unlock(); | |
4485 | } | |
c6e96010 | 4486 | |
c3cbbe8a | 4487 | if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc) { |
13935e2c | 4488 | rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates); |
3a980d0a LB |
4489 | if (rc) |
4490 | goto out; | |
a66098da | 4491 | |
b71ed2c6 | 4492 | rc = mwl8k_cmd_use_fixed_rate_sta(hw); |
3a980d0a LB |
4493 | if (rc) |
4494 | goto out; | |
c3cbbe8a | 4495 | } |
a66098da | 4496 | |
c3cbbe8a | 4497 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
7dc6a7a7 LB |
4498 | rc = mwl8k_set_radio_preamble(hw, |
4499 | vif->bss_conf.use_short_preamble); | |
3a980d0a LB |
4500 | if (rc) |
4501 | goto out; | |
c3cbbe8a | 4502 | } |
a66098da | 4503 | |
c3cbbe8a | 4504 | if (changed & BSS_CHANGED_ERP_SLOT) { |
7dc6a7a7 | 4505 | rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot); |
3a980d0a LB |
4506 | if (rc) |
4507 | goto out; | |
c3cbbe8a | 4508 | } |
a66098da | 4509 | |
c97470dd LB |
4510 | if (vif->bss_conf.assoc && |
4511 | (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT | | |
4512 | BSS_CHANGED_HT))) { | |
c3cbbe8a | 4513 | rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates); |
3a980d0a LB |
4514 | if (rc) |
4515 | goto out; | |
c3cbbe8a | 4516 | } |
a66098da | 4517 | |
c3cbbe8a LB |
4518 | if (vif->bss_conf.assoc && |
4519 | (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) { | |
a66098da LB |
4520 | /* |
4521 | * Finalize the join. Tell rx handler to process | |
4522 | * next beacon from our BSSID. | |
4523 | */ | |
0a11dfc3 | 4524 | memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN); |
a66098da | 4525 | priv->capture_beacon = true; |
a66098da LB |
4526 | } |
4527 | ||
3a980d0a LB |
4528 | out: |
4529 | mwl8k_fw_unlock(hw); | |
a66098da LB |
4530 | } |
4531 | ||
b64fe619 LB |
4532 | static void |
4533 | mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
4534 | struct ieee80211_bss_conf *info, u32 changed) | |
4535 | { | |
4536 | int rc; | |
4537 | ||
4538 | if (mwl8k_fw_lock(hw)) | |
4539 | return; | |
4540 | ||
4541 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
4542 | rc = mwl8k_set_radio_preamble(hw, | |
4543 | vif->bss_conf.use_short_preamble); | |
4544 | if (rc) | |
4545 | goto out; | |
4546 | } | |
4547 | ||
4548 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
4549 | int idx; | |
4550 | int rate; | |
4551 | ||
4552 | /* | |
4553 | * Use lowest supported basic rate for multicasts | |
4554 | * and management frames (such as probe responses -- | |
4555 | * beacons will always go out at 1 Mb/s). | |
4556 | */ | |
4557 | idx = ffs(vif->bss_conf.basic_rates); | |
8707d026 LB |
4558 | if (idx) |
4559 | idx--; | |
4560 | ||
4561 | if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) | |
4562 | rate = mwl8k_rates_24[idx].hw_value; | |
4563 | else | |
4564 | rate = mwl8k_rates_50[idx].hw_value; | |
b64fe619 LB |
4565 | |
4566 | mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate); | |
4567 | } | |
4568 | ||
4569 | if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) { | |
4570 | struct sk_buff *skb; | |
4571 | ||
4572 | skb = ieee80211_beacon_get(hw, vif); | |
4573 | if (skb != NULL) { | |
aa21d0f6 | 4574 | mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len); |
b64fe619 LB |
4575 | kfree_skb(skb); |
4576 | } | |
4577 | } | |
4578 | ||
4579 | if (changed & BSS_CHANGED_BEACON_ENABLED) | |
aa21d0f6 | 4580 | mwl8k_cmd_bss_start(hw, vif, info->enable_beacon); |
b64fe619 LB |
4581 | |
4582 | out: | |
4583 | mwl8k_fw_unlock(hw); | |
4584 | } | |
4585 | ||
4586 | static void | |
4587 | mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
4588 | struct ieee80211_bss_conf *info, u32 changed) | |
4589 | { | |
4590 | struct mwl8k_priv *priv = hw->priv; | |
4591 | ||
4592 | if (!priv->ap_fw) | |
4593 | mwl8k_bss_info_changed_sta(hw, vif, info, changed); | |
4594 | else | |
4595 | mwl8k_bss_info_changed_ap(hw, vif, info, changed); | |
4596 | } | |
4597 | ||
e81cd2d6 | 4598 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
22bedad3 | 4599 | struct netdev_hw_addr_list *mc_list) |
e81cd2d6 LB |
4600 | { |
4601 | struct mwl8k_cmd_pkt *cmd; | |
4602 | ||
447ced07 LB |
4603 | /* |
4604 | * Synthesize and return a command packet that programs the | |
4605 | * hardware multicast address filter. At this point we don't | |
4606 | * know whether FIF_ALLMULTI is being requested, but if it is, | |
4607 | * we'll end up throwing this packet away and creating a new | |
4608 | * one in mwl8k_configure_filter(). | |
4609 | */ | |
22bedad3 | 4610 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list); |
e81cd2d6 LB |
4611 | |
4612 | return (unsigned long)cmd; | |
4613 | } | |
4614 | ||
a43c49a8 LB |
4615 | static int |
4616 | mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, | |
4617 | unsigned int changed_flags, | |
4618 | unsigned int *total_flags) | |
4619 | { | |
4620 | struct mwl8k_priv *priv = hw->priv; | |
4621 | ||
4622 | /* | |
4623 | * Hardware sniffer mode is mutually exclusive with STA | |
4624 | * operation, so refuse to enable sniffer mode if a STA | |
4625 | * interface is active. | |
4626 | */ | |
f5bb87cf | 4627 | if (!list_empty(&priv->vif_list)) { |
a43c49a8 | 4628 | if (net_ratelimit()) |
c96c31e4 JP |
4629 | wiphy_info(hw->wiphy, |
4630 | "not enabling sniffer mode because STA interface is active\n"); | |
a43c49a8 LB |
4631 | return 0; |
4632 | } | |
4633 | ||
4634 | if (!priv->sniffer_enabled) { | |
55489b6e | 4635 | if (mwl8k_cmd_enable_sniffer(hw, 1)) |
a43c49a8 LB |
4636 | return 0; |
4637 | priv->sniffer_enabled = true; | |
4638 | } | |
4639 | ||
4640 | *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI | | |
4641 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL | | |
4642 | FIF_OTHER_BSS; | |
4643 | ||
4644 | return 1; | |
4645 | } | |
4646 | ||
f5bb87cf LB |
4647 | static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv) |
4648 | { | |
4649 | if (!list_empty(&priv->vif_list)) | |
4650 | return list_entry(priv->vif_list.next, struct mwl8k_vif, list); | |
4651 | ||
4652 | return NULL; | |
4653 | } | |
4654 | ||
e6935ea1 LB |
4655 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
4656 | unsigned int changed_flags, | |
4657 | unsigned int *total_flags, | |
4658 | u64 multicast) | |
4659 | { | |
4660 | struct mwl8k_priv *priv = hw->priv; | |
a43c49a8 LB |
4661 | struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast; |
4662 | ||
c0adae2c LB |
4663 | /* |
4664 | * AP firmware doesn't allow fine-grained control over | |
4665 | * the receive filter. | |
4666 | */ | |
4667 | if (priv->ap_fw) { | |
4668 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; | |
4669 | kfree(cmd); | |
4670 | return; | |
4671 | } | |
4672 | ||
a43c49a8 LB |
4673 | /* |
4674 | * Enable hardware sniffer mode if FIF_CONTROL or | |
4675 | * FIF_OTHER_BSS is requested. | |
4676 | */ | |
4677 | if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) && | |
4678 | mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) { | |
4679 | kfree(cmd); | |
4680 | return; | |
4681 | } | |
a66098da | 4682 | |
e6935ea1 | 4683 | /* Clear unsupported feature flags */ |
447ced07 | 4684 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; |
a66098da | 4685 | |
90852f7a LB |
4686 | if (mwl8k_fw_lock(hw)) { |
4687 | kfree(cmd); | |
e6935ea1 | 4688 | return; |
90852f7a | 4689 | } |
a66098da | 4690 | |
a43c49a8 | 4691 | if (priv->sniffer_enabled) { |
55489b6e | 4692 | mwl8k_cmd_enable_sniffer(hw, 0); |
a43c49a8 LB |
4693 | priv->sniffer_enabled = false; |
4694 | } | |
4695 | ||
e6935ea1 | 4696 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
77165d88 LB |
4697 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { |
4698 | /* | |
4699 | * Disable the BSS filter. | |
4700 | */ | |
e6935ea1 | 4701 | mwl8k_cmd_set_pre_scan(hw); |
77165d88 | 4702 | } else { |
f5bb87cf | 4703 | struct mwl8k_vif *mwl8k_vif; |
0a11dfc3 | 4704 | const u8 *bssid; |
a94cc97e | 4705 | |
77165d88 LB |
4706 | /* |
4707 | * Enable the BSS filter. | |
4708 | * | |
4709 | * If there is an active STA interface, use that | |
4710 | * interface's BSSID, otherwise use a dummy one | |
4711 | * (where the OUI part needs to be nonzero for | |
4712 | * the BSSID to be accepted by POST_SCAN). | |
4713 | */ | |
f5bb87cf LB |
4714 | mwl8k_vif = mwl8k_first_vif(priv); |
4715 | if (mwl8k_vif != NULL) | |
4716 | bssid = mwl8k_vif->vif->bss_conf.bssid; | |
4717 | else | |
4718 | bssid = "\x01\x00\x00\x00\x00\x00"; | |
a94cc97e | 4719 | |
e6935ea1 | 4720 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
4721 | } |
4722 | } | |
4723 | ||
447ced07 LB |
4724 | /* |
4725 | * If FIF_ALLMULTI is being requested, throw away the command | |
4726 | * packet that ->prepare_multicast() built and replace it with | |
4727 | * a command packet that enables reception of all multicast | |
4728 | * packets. | |
4729 | */ | |
4730 | if (*total_flags & FIF_ALLMULTI) { | |
4731 | kfree(cmd); | |
22bedad3 | 4732 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL); |
447ced07 LB |
4733 | } |
4734 | ||
4735 | if (cmd != NULL) { | |
4736 | mwl8k_post_cmd(hw, cmd); | |
4737 | kfree(cmd); | |
e6935ea1 | 4738 | } |
a66098da | 4739 | |
e6935ea1 | 4740 | mwl8k_fw_unlock(hw); |
a66098da LB |
4741 | } |
4742 | ||
a66098da LB |
4743 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
4744 | { | |
c2c2b12a | 4745 | return mwl8k_cmd_set_rts_threshold(hw, value); |
a66098da LB |
4746 | } |
4747 | ||
4a6967b8 JB |
4748 | static int mwl8k_sta_remove(struct ieee80211_hw *hw, |
4749 | struct ieee80211_vif *vif, | |
4750 | struct ieee80211_sta *sta) | |
3f5610ff LB |
4751 | { |
4752 | struct mwl8k_priv *priv = hw->priv; | |
4753 | ||
4a6967b8 JB |
4754 | if (priv->ap_fw) |
4755 | return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr); | |
4756 | else | |
4757 | return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr); | |
bbfd9128 LB |
4758 | } |
4759 | ||
4a6967b8 JB |
4760 | static int mwl8k_sta_add(struct ieee80211_hw *hw, |
4761 | struct ieee80211_vif *vif, | |
4762 | struct ieee80211_sta *sta) | |
bbfd9128 LB |
4763 | { |
4764 | struct mwl8k_priv *priv = hw->priv; | |
4a6967b8 | 4765 | int ret; |
fcdc403c NS |
4766 | int i; |
4767 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
4768 | struct ieee80211_key_conf *key; | |
bbfd9128 | 4769 | |
4a6967b8 JB |
4770 | if (!priv->ap_fw) { |
4771 | ret = mwl8k_cmd_update_stadb_add(hw, vif, sta); | |
4772 | if (ret >= 0) { | |
4773 | MWL8K_STA(sta)->peer_id = ret; | |
17033543 NS |
4774 | if (sta->ht_cap.ht_supported) |
4775 | MWL8K_STA(sta)->is_ampdu_allowed = true; | |
fcdc403c | 4776 | ret = 0; |
4a6967b8 | 4777 | } |
bbfd9128 | 4778 | |
d9a07d49 NS |
4779 | } else { |
4780 | ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta); | |
bbfd9128 | 4781 | } |
4a6967b8 | 4782 | |
d9a07d49 NS |
4783 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
4784 | key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key); | |
4785 | if (mwl8k_vif->wep_key_conf[i].enabled) | |
4786 | mwl8k_set_key(hw, SET_KEY, vif, sta, key); | |
4787 | } | |
fcdc403c | 4788 | return ret; |
bbfd9128 LB |
4789 | } |
4790 | ||
a66098da LB |
4791 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
4792 | const struct ieee80211_tx_queue_params *params) | |
4793 | { | |
3e4f542c | 4794 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 4795 | int rc; |
a66098da | 4796 | |
3e4f542c LB |
4797 | rc = mwl8k_fw_lock(hw); |
4798 | if (!rc) { | |
e600707b | 4799 | BUG_ON(queue > MWL8K_TX_WMM_QUEUES - 1); |
0863ade8 BC |
4800 | memcpy(&priv->wmm_params[queue], params, sizeof(*params)); |
4801 | ||
3e4f542c | 4802 | if (!priv->wmm_enabled) |
55489b6e | 4803 | rc = mwl8k_cmd_set_wmm_mode(hw, 1); |
a66098da | 4804 | |
85c9205c | 4805 | if (!rc) { |
e600707b | 4806 | int q = MWL8K_TX_WMM_QUEUES - 1 - queue; |
85c9205c | 4807 | rc = mwl8k_cmd_set_edca_params(hw, q, |
55489b6e LB |
4808 | params->cw_min, |
4809 | params->cw_max, | |
4810 | params->aifs, | |
4811 | params->txop); | |
85c9205c | 4812 | } |
3e4f542c LB |
4813 | |
4814 | mwl8k_fw_unlock(hw); | |
a66098da | 4815 | } |
3e4f542c | 4816 | |
a66098da LB |
4817 | return rc; |
4818 | } | |
4819 | ||
a66098da LB |
4820 | static int mwl8k_get_stats(struct ieee80211_hw *hw, |
4821 | struct ieee80211_low_level_stats *stats) | |
4822 | { | |
55489b6e | 4823 | return mwl8k_cmd_get_stat(hw, stats); |
a66098da LB |
4824 | } |
4825 | ||
0d462bbb JL |
4826 | static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx, |
4827 | struct survey_info *survey) | |
4828 | { | |
4829 | struct mwl8k_priv *priv = hw->priv; | |
4830 | struct ieee80211_conf *conf = &hw->conf; | |
4831 | ||
4832 | if (idx != 0) | |
4833 | return -ENOENT; | |
4834 | ||
4835 | survey->channel = conf->channel; | |
4836 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
4837 | survey->noise = priv->noise; | |
4838 | ||
4839 | return 0; | |
4840 | } | |
4841 | ||
65f3ddcd NS |
4842 | #define MAX_AMPDU_ATTEMPTS 5 |
4843 | ||
a2292d83 LB |
4844 | static int |
4845 | mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
4846 | enum ieee80211_ampdu_mlme_action action, | |
0b01f030 JB |
4847 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
4848 | u8 buf_size) | |
a2292d83 | 4849 | { |
65f3ddcd NS |
4850 | |
4851 | int i, rc = 0; | |
4852 | struct mwl8k_priv *priv = hw->priv; | |
4853 | struct mwl8k_ampdu_stream *stream; | |
4854 | u8 *addr = sta->addr; | |
4855 | ||
4856 | if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION)) | |
4857 | return -ENOTSUPP; | |
4858 | ||
4859 | spin_lock(&priv->stream_lock); | |
4860 | stream = mwl8k_lookup_stream(hw, addr, tid); | |
4861 | ||
a2292d83 LB |
4862 | switch (action) { |
4863 | case IEEE80211_AMPDU_RX_START: | |
4864 | case IEEE80211_AMPDU_RX_STOP: | |
65f3ddcd NS |
4865 | break; |
4866 | case IEEE80211_AMPDU_TX_START: | |
4867 | /* By the time we get here the hw queues may contain outgoing | |
4868 | * packets for this RA/TID that are not part of this BA | |
4869 | * session. The hw will assign sequence numbers to these | |
4870 | * packets as they go out. So if we query the hw for its next | |
4871 | * sequence number and use that for the SSN here, it may end up | |
4872 | * being wrong, which will lead to sequence number mismatch at | |
4873 | * the recipient. To avoid this, we reset the sequence number | |
4874 | * to O for the first MPDU in this BA stream. | |
4875 | */ | |
4876 | *ssn = 0; | |
4877 | if (stream == NULL) { | |
4878 | /* This means that somebody outside this driver called | |
4879 | * ieee80211_start_tx_ba_session. This is unexpected | |
4880 | * because we do our own rate control. Just warn and | |
4881 | * move on. | |
4882 | */ | |
4883 | wiphy_warn(hw->wiphy, "Unexpected call to %s. " | |
4884 | "Proceeding anyway.\n", __func__); | |
4885 | stream = mwl8k_add_stream(hw, sta, tid); | |
4886 | } | |
4887 | if (stream == NULL) { | |
4888 | wiphy_debug(hw->wiphy, "no free AMPDU streams\n"); | |
4889 | rc = -EBUSY; | |
4890 | break; | |
4891 | } | |
4892 | stream->state = AMPDU_STREAM_IN_PROGRESS; | |
4893 | ||
4894 | /* Release the lock before we do the time consuming stuff */ | |
4895 | spin_unlock(&priv->stream_lock); | |
4896 | for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) { | |
4897 | rc = mwl8k_check_ba(hw, stream); | |
4898 | ||
4899 | if (!rc) | |
4900 | break; | |
4901 | /* | |
4902 | * HW queues take time to be flushed, give them | |
4903 | * sufficient time | |
4904 | */ | |
4905 | ||
4906 | msleep(1000); | |
4907 | } | |
4908 | spin_lock(&priv->stream_lock); | |
4909 | if (rc) { | |
4910 | wiphy_err(hw->wiphy, "Stream for tid %d busy after %d" | |
4911 | " attempts\n", tid, MAX_AMPDU_ATTEMPTS); | |
4912 | mwl8k_remove_stream(hw, stream); | |
4913 | rc = -EBUSY; | |
4914 | break; | |
4915 | } | |
4916 | ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid); | |
4917 | break; | |
4918 | case IEEE80211_AMPDU_TX_STOP: | |
4919 | if (stream == NULL) | |
4920 | break; | |
4921 | if (stream->state == AMPDU_STREAM_ACTIVE) { | |
4922 | spin_unlock(&priv->stream_lock); | |
4923 | mwl8k_destroy_ba(hw, stream); | |
4924 | spin_lock(&priv->stream_lock); | |
4925 | } | |
4926 | mwl8k_remove_stream(hw, stream); | |
4927 | ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid); | |
4928 | break; | |
4929 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
4930 | BUG_ON(stream == NULL); | |
4931 | BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS); | |
4932 | spin_unlock(&priv->stream_lock); | |
4933 | rc = mwl8k_create_ba(hw, stream, buf_size); | |
4934 | spin_lock(&priv->stream_lock); | |
4935 | if (!rc) | |
4936 | stream->state = AMPDU_STREAM_ACTIVE; | |
4937 | else { | |
4938 | spin_unlock(&priv->stream_lock); | |
4939 | mwl8k_destroy_ba(hw, stream); | |
4940 | spin_lock(&priv->stream_lock); | |
4941 | wiphy_debug(hw->wiphy, | |
4942 | "Failed adding stream for sta %pM tid %d\n", | |
4943 | addr, tid); | |
4944 | mwl8k_remove_stream(hw, stream); | |
4945 | } | |
4946 | break; | |
4947 | ||
a2292d83 | 4948 | default: |
65f3ddcd | 4949 | rc = -ENOTSUPP; |
a2292d83 | 4950 | } |
65f3ddcd NS |
4951 | |
4952 | spin_unlock(&priv->stream_lock); | |
4953 | return rc; | |
a2292d83 LB |
4954 | } |
4955 | ||
a66098da LB |
4956 | static const struct ieee80211_ops mwl8k_ops = { |
4957 | .tx = mwl8k_tx, | |
4958 | .start = mwl8k_start, | |
4959 | .stop = mwl8k_stop, | |
4960 | .add_interface = mwl8k_add_interface, | |
4961 | .remove_interface = mwl8k_remove_interface, | |
4962 | .config = mwl8k_config, | |
a66098da | 4963 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 4964 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da | 4965 | .configure_filter = mwl8k_configure_filter, |
fcdc403c | 4966 | .set_key = mwl8k_set_key, |
a66098da | 4967 | .set_rts_threshold = mwl8k_set_rts_threshold, |
4a6967b8 JB |
4968 | .sta_add = mwl8k_sta_add, |
4969 | .sta_remove = mwl8k_sta_remove, | |
a66098da | 4970 | .conf_tx = mwl8k_conf_tx, |
a66098da | 4971 | .get_stats = mwl8k_get_stats, |
0d462bbb | 4972 | .get_survey = mwl8k_get_survey, |
a2292d83 | 4973 | .ampdu_action = mwl8k_ampdu_action, |
a66098da LB |
4974 | }; |
4975 | ||
a66098da LB |
4976 | static void mwl8k_finalize_join_worker(struct work_struct *work) |
4977 | { | |
4978 | struct mwl8k_priv *priv = | |
4979 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
4980 | struct sk_buff *skb = priv->beacon_skb; | |
56007a02 JB |
4981 | struct ieee80211_mgmt *mgmt = (void *)skb->data; |
4982 | int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
4983 | const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM, | |
4984 | mgmt->u.beacon.variable, len); | |
4985 | int dtim_period = 1; | |
4986 | ||
4987 | if (tim && tim[1] >= 2) | |
4988 | dtim_period = tim[3]; | |
a66098da | 4989 | |
56007a02 | 4990 | mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period); |
a66098da | 4991 | |
f5bb87cf | 4992 | dev_kfree_skb(skb); |
a66098da LB |
4993 | priv->beacon_skb = NULL; |
4994 | } | |
4995 | ||
bcb628d5 | 4996 | enum { |
9e1b17ea LB |
4997 | MWL8363 = 0, |
4998 | MWL8687, | |
bcb628d5 | 4999 | MWL8366, |
6f6d1e9a LB |
5000 | }; |
5001 | ||
8a7a578c | 5002 | #define MWL8K_8366_AP_FW_API 2 |
952a0e96 BC |
5003 | #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw" |
5004 | #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api) | |
5005 | ||
bcb628d5 | 5006 | static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = { |
9e1b17ea LB |
5007 | [MWL8363] = { |
5008 | .part_name = "88w8363", | |
5009 | .helper_image = "mwl8k/helper_8363.fw", | |
0863ade8 | 5010 | .fw_image_sta = "mwl8k/fmimage_8363.fw", |
9e1b17ea | 5011 | }, |
49eb691c | 5012 | [MWL8687] = { |
bcb628d5 JL |
5013 | .part_name = "88w8687", |
5014 | .helper_image = "mwl8k/helper_8687.fw", | |
0863ade8 | 5015 | .fw_image_sta = "mwl8k/fmimage_8687.fw", |
bcb628d5 | 5016 | }, |
49eb691c | 5017 | [MWL8366] = { |
bcb628d5 JL |
5018 | .part_name = "88w8366", |
5019 | .helper_image = "mwl8k/helper_8366.fw", | |
0863ade8 | 5020 | .fw_image_sta = "mwl8k/fmimage_8366.fw", |
952a0e96 BC |
5021 | .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API), |
5022 | .fw_api_ap = MWL8K_8366_AP_FW_API, | |
89a91f4f | 5023 | .ap_rxd_ops = &rxd_8366_ap_ops, |
bcb628d5 | 5024 | }, |
45a390dd LB |
5025 | }; |
5026 | ||
c92d4ede LB |
5027 | MODULE_FIRMWARE("mwl8k/helper_8363.fw"); |
5028 | MODULE_FIRMWARE("mwl8k/fmimage_8363.fw"); | |
5029 | MODULE_FIRMWARE("mwl8k/helper_8687.fw"); | |
5030 | MODULE_FIRMWARE("mwl8k/fmimage_8687.fw"); | |
5031 | MODULE_FIRMWARE("mwl8k/helper_8366.fw"); | |
5032 | MODULE_FIRMWARE("mwl8k/fmimage_8366.fw"); | |
952a0e96 | 5033 | MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API)); |
c92d4ede | 5034 | |
45a390dd | 5035 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { |
e5868ba1 | 5036 | { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, }, |
9e1b17ea LB |
5037 | { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, }, |
5038 | { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, }, | |
bcb628d5 JL |
5039 | { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, }, |
5040 | { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, }, | |
5041 | { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, }, | |
ca66527c | 5042 | { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, }, |
bcb628d5 | 5043 | { }, |
45a390dd LB |
5044 | }; |
5045 | MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table); | |
5046 | ||
99020471 BC |
5047 | static int mwl8k_request_alt_fw(struct mwl8k_priv *priv) |
5048 | { | |
5049 | int rc; | |
5050 | printk(KERN_ERR "%s: Error requesting preferred fw %s.\n" | |
5051 | "Trying alternative firmware %s\n", pci_name(priv->pdev), | |
5052 | priv->fw_pref, priv->fw_alt); | |
5053 | rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true); | |
5054 | if (rc) { | |
5055 | printk(KERN_ERR "%s: Error requesting alt fw %s\n", | |
5056 | pci_name(priv->pdev), priv->fw_alt); | |
5057 | return rc; | |
5058 | } | |
5059 | return 0; | |
5060 | } | |
5061 | ||
5062 | static int mwl8k_firmware_load_success(struct mwl8k_priv *priv); | |
5063 | static void mwl8k_fw_state_machine(const struct firmware *fw, void *context) | |
5064 | { | |
5065 | struct mwl8k_priv *priv = context; | |
5066 | struct mwl8k_device_info *di = priv->device_info; | |
5067 | int rc; | |
5068 | ||
5069 | switch (priv->fw_state) { | |
5070 | case FW_STATE_INIT: | |
5071 | if (!fw) { | |
5072 | printk(KERN_ERR "%s: Error requesting helper fw %s\n", | |
5073 | pci_name(priv->pdev), di->helper_image); | |
5074 | goto fail; | |
5075 | } | |
5076 | priv->fw_helper = fw; | |
5077 | rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode, | |
5078 | true); | |
5079 | if (rc && priv->fw_alt) { | |
5080 | rc = mwl8k_request_alt_fw(priv); | |
5081 | if (rc) | |
5082 | goto fail; | |
5083 | priv->fw_state = FW_STATE_LOADING_ALT; | |
5084 | } else if (rc) | |
5085 | goto fail; | |
5086 | else | |
5087 | priv->fw_state = FW_STATE_LOADING_PREF; | |
5088 | break; | |
5089 | ||
5090 | case FW_STATE_LOADING_PREF: | |
5091 | if (!fw) { | |
5092 | if (priv->fw_alt) { | |
5093 | rc = mwl8k_request_alt_fw(priv); | |
5094 | if (rc) | |
5095 | goto fail; | |
5096 | priv->fw_state = FW_STATE_LOADING_ALT; | |
5097 | } else | |
5098 | goto fail; | |
5099 | } else { | |
5100 | priv->fw_ucode = fw; | |
5101 | rc = mwl8k_firmware_load_success(priv); | |
5102 | if (rc) | |
5103 | goto fail; | |
5104 | else | |
5105 | complete(&priv->firmware_loading_complete); | |
5106 | } | |
5107 | break; | |
5108 | ||
5109 | case FW_STATE_LOADING_ALT: | |
5110 | if (!fw) { | |
5111 | printk(KERN_ERR "%s: Error requesting alt fw %s\n", | |
5112 | pci_name(priv->pdev), di->helper_image); | |
5113 | goto fail; | |
5114 | } | |
5115 | priv->fw_ucode = fw; | |
5116 | rc = mwl8k_firmware_load_success(priv); | |
5117 | if (rc) | |
5118 | goto fail; | |
5119 | else | |
5120 | complete(&priv->firmware_loading_complete); | |
5121 | break; | |
5122 | ||
5123 | default: | |
5124 | printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n", | |
5125 | MWL8K_NAME, priv->fw_state); | |
5126 | BUG_ON(1); | |
5127 | } | |
5128 | ||
5129 | return; | |
5130 | ||
5131 | fail: | |
5132 | priv->fw_state = FW_STATE_ERROR; | |
5133 | complete(&priv->firmware_loading_complete); | |
5134 | device_release_driver(&priv->pdev->dev); | |
5135 | mwl8k_release_firmware(priv); | |
5136 | } | |
5137 | ||
5138 | static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image, | |
5139 | bool nowait) | |
a66098da | 5140 | { |
3cc7772c | 5141 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 5142 | int rc; |
be695fc4 LB |
5143 | |
5144 | /* Reset firmware and hardware */ | |
5145 | mwl8k_hw_reset(priv); | |
5146 | ||
5147 | /* Ask userland hotplug daemon for the device firmware */ | |
99020471 | 5148 | rc = mwl8k_request_firmware(priv, fw_image, nowait); |
be695fc4 | 5149 | if (rc) { |
5db55844 | 5150 | wiphy_err(hw->wiphy, "Firmware files not found\n"); |
3cc7772c | 5151 | return rc; |
be695fc4 LB |
5152 | } |
5153 | ||
99020471 BC |
5154 | if (nowait) |
5155 | return rc; | |
5156 | ||
be695fc4 LB |
5157 | /* Load firmware into hardware */ |
5158 | rc = mwl8k_load_firmware(hw); | |
3cc7772c | 5159 | if (rc) |
5db55844 | 5160 | wiphy_err(hw->wiphy, "Cannot start firmware\n"); |
be695fc4 LB |
5161 | |
5162 | /* Reclaim memory once firmware is successfully loaded */ | |
5163 | mwl8k_release_firmware(priv); | |
5164 | ||
3cc7772c BC |
5165 | return rc; |
5166 | } | |
5167 | ||
73b46320 BC |
5168 | static int mwl8k_init_txqs(struct ieee80211_hw *hw) |
5169 | { | |
5170 | struct mwl8k_priv *priv = hw->priv; | |
5171 | int rc = 0; | |
5172 | int i; | |
5173 | ||
e600707b | 5174 | for (i = 0; i < mwl8k_tx_queues(priv); i++) { |
73b46320 BC |
5175 | rc = mwl8k_txq_init(hw, i); |
5176 | if (rc) | |
5177 | break; | |
5178 | if (priv->ap_fw) | |
5179 | iowrite32(priv->txq[i].txd_dma, | |
5180 | priv->sram + priv->txq_offset[i]); | |
5181 | } | |
5182 | return rc; | |
5183 | } | |
5184 | ||
3cc7772c BC |
5185 | /* initialize hw after successfully loading a firmware image */ |
5186 | static int mwl8k_probe_hw(struct ieee80211_hw *hw) | |
5187 | { | |
5188 | struct mwl8k_priv *priv = hw->priv; | |
5189 | int rc = 0; | |
5190 | int i; | |
be695fc4 | 5191 | |
91942230 | 5192 | if (priv->ap_fw) { |
89a91f4f | 5193 | priv->rxd_ops = priv->device_info->ap_rxd_ops; |
91942230 | 5194 | if (priv->rxd_ops == NULL) { |
c96c31e4 JP |
5195 | wiphy_err(hw->wiphy, |
5196 | "Driver does not have AP firmware image support for this hardware\n"); | |
91942230 LB |
5197 | goto err_stop_firmware; |
5198 | } | |
5199 | } else { | |
89a91f4f | 5200 | priv->rxd_ops = &rxd_sta_ops; |
91942230 | 5201 | } |
be695fc4 LB |
5202 | |
5203 | priv->sniffer_enabled = false; | |
5204 | priv->wmm_enabled = false; | |
5205 | priv->pending_tx_pkts = 0; | |
5206 | ||
a66098da LB |
5207 | rc = mwl8k_rxq_init(hw, 0); |
5208 | if (rc) | |
3cc7772c | 5209 | goto err_stop_firmware; |
a66098da LB |
5210 | rxq_refill(hw, 0, INT_MAX); |
5211 | ||
73b46320 BC |
5212 | /* For the sta firmware, we need to know the dma addresses of tx queues |
5213 | * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them | |
5214 | * prior to issuing this command. But for the AP case, we learn the | |
5215 | * total number of queues from the result CMD_GET_HW_SPEC, so for this | |
5216 | * case we must initialize the tx queues after. | |
5217 | */ | |
8a7a578c | 5218 | priv->num_ampdu_queues = 0; |
73b46320 BC |
5219 | if (!priv->ap_fw) { |
5220 | rc = mwl8k_init_txqs(hw); | |
a66098da LB |
5221 | if (rc) |
5222 | goto err_free_queues; | |
5223 | } | |
5224 | ||
5225 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 5226 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
3aefc37e NS |
5227 | iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY| |
5228 | MWL8K_A2H_INT_BA_WATCHDOG, | |
1e9f9de3 | 5229 | priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
a66098da LB |
5230 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); |
5231 | ||
a0607fd3 | 5232 | rc = request_irq(priv->pdev->irq, mwl8k_interrupt, |
a66098da LB |
5233 | IRQF_SHARED, MWL8K_NAME, hw); |
5234 | if (rc) { | |
5db55844 | 5235 | wiphy_err(hw->wiphy, "failed to register IRQ handler\n"); |
a66098da LB |
5236 | goto err_free_queues; |
5237 | } | |
5238 | ||
ac109fd0 BC |
5239 | memset(priv->ampdu, 0, sizeof(priv->ampdu)); |
5240 | ||
a66098da LB |
5241 | /* |
5242 | * Temporarily enable interrupts. Initial firmware host | |
c2c2b12a | 5243 | * commands use interrupts and avoid polling. Disable |
a66098da LB |
5244 | * interrupts when done. |
5245 | */ | |
c23b5a69 | 5246 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
5247 | |
5248 | /* Get config data, mac addrs etc */ | |
42fba21d LB |
5249 | if (priv->ap_fw) { |
5250 | rc = mwl8k_cmd_get_hw_spec_ap(hw); | |
73b46320 BC |
5251 | if (!rc) |
5252 | rc = mwl8k_init_txqs(hw); | |
42fba21d LB |
5253 | if (!rc) |
5254 | rc = mwl8k_cmd_set_hw_spec(hw); | |
5255 | } else { | |
5256 | rc = mwl8k_cmd_get_hw_spec_sta(hw); | |
5257 | } | |
a66098da | 5258 | if (rc) { |
5db55844 | 5259 | wiphy_err(hw->wiphy, "Cannot initialise firmware\n"); |
be695fc4 | 5260 | goto err_free_irq; |
a66098da LB |
5261 | } |
5262 | ||
5263 | /* Turn radio off */ | |
55489b6e | 5264 | rc = mwl8k_cmd_radio_disable(hw); |
a66098da | 5265 | if (rc) { |
5db55844 | 5266 | wiphy_err(hw->wiphy, "Cannot disable\n"); |
be695fc4 | 5267 | goto err_free_irq; |
a66098da LB |
5268 | } |
5269 | ||
32060e1b | 5270 | /* Clear MAC address */ |
aa21d0f6 | 5271 | rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00"); |
32060e1b | 5272 | if (rc) { |
5db55844 | 5273 | wiphy_err(hw->wiphy, "Cannot clear MAC address\n"); |
be695fc4 | 5274 | goto err_free_irq; |
32060e1b LB |
5275 | } |
5276 | ||
a66098da | 5277 | /* Disable interrupts */ |
a66098da | 5278 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
5279 | free_irq(priv->pdev->irq, hw); |
5280 | ||
c96c31e4 JP |
5281 | wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n", |
5282 | priv->device_info->part_name, | |
5283 | priv->hw_rev, hw->wiphy->perm_addr, | |
5284 | priv->ap_fw ? "AP" : "STA", | |
5285 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, | |
5286 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
5287 | |
5288 | return 0; | |
5289 | ||
a66098da | 5290 | err_free_irq: |
a66098da | 5291 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
5292 | free_irq(priv->pdev->irq, hw); |
5293 | ||
5294 | err_free_queues: | |
e600707b | 5295 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
a66098da LB |
5296 | mwl8k_txq_deinit(hw, i); |
5297 | mwl8k_rxq_deinit(hw, 0); | |
5298 | ||
3cc7772c BC |
5299 | err_stop_firmware: |
5300 | mwl8k_hw_reset(priv); | |
5301 | ||
5302 | return rc; | |
5303 | } | |
5304 | ||
5305 | /* | |
5306 | * invoke mwl8k_reload_firmware to change the firmware image after the device | |
5307 | * has already been registered | |
5308 | */ | |
5309 | static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image) | |
5310 | { | |
5311 | int i, rc = 0; | |
5312 | struct mwl8k_priv *priv = hw->priv; | |
5313 | ||
5314 | mwl8k_stop(hw); | |
5315 | mwl8k_rxq_deinit(hw, 0); | |
5316 | ||
e600707b | 5317 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
3cc7772c BC |
5318 | mwl8k_txq_deinit(hw, i); |
5319 | ||
99020471 | 5320 | rc = mwl8k_init_firmware(hw, fw_image, false); |
3cc7772c BC |
5321 | if (rc) |
5322 | goto fail; | |
5323 | ||
5324 | rc = mwl8k_probe_hw(hw); | |
5325 | if (rc) | |
5326 | goto fail; | |
5327 | ||
5328 | rc = mwl8k_start(hw); | |
5329 | if (rc) | |
5330 | goto fail; | |
5331 | ||
5332 | rc = mwl8k_config(hw, ~0); | |
5333 | if (rc) | |
5334 | goto fail; | |
5335 | ||
e600707b | 5336 | for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) { |
3cc7772c BC |
5337 | rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]); |
5338 | if (rc) | |
5339 | goto fail; | |
5340 | } | |
5341 | ||
5342 | return rc; | |
5343 | ||
5344 | fail: | |
5345 | printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n"); | |
5346 | return rc; | |
5347 | } | |
5348 | ||
5349 | static int mwl8k_firmware_load_success(struct mwl8k_priv *priv) | |
5350 | { | |
5351 | struct ieee80211_hw *hw = priv->hw; | |
5352 | int i, rc; | |
5353 | ||
99020471 BC |
5354 | rc = mwl8k_load_firmware(hw); |
5355 | mwl8k_release_firmware(priv); | |
5356 | if (rc) { | |
5357 | wiphy_err(hw->wiphy, "Cannot start firmware\n"); | |
5358 | return rc; | |
5359 | } | |
5360 | ||
3cc7772c BC |
5361 | /* |
5362 | * Extra headroom is the size of the required DMA header | |
5363 | * minus the size of the smallest 802.11 frame (CTS frame). | |
5364 | */ | |
5365 | hw->extra_tx_headroom = | |
5366 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
5367 | ||
5368 | hw->channel_change_time = 10; | |
5369 | ||
e600707b | 5370 | hw->queues = MWL8K_TX_WMM_QUEUES; |
3cc7772c BC |
5371 | |
5372 | /* Set rssi values to dBm */ | |
0bf22c37 | 5373 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL; |
3cc7772c BC |
5374 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
5375 | hw->sta_data_size = sizeof(struct mwl8k_sta); | |
5376 | ||
5377 | priv->macids_used = 0; | |
5378 | INIT_LIST_HEAD(&priv->vif_list); | |
5379 | ||
5380 | /* Set default radio state and preamble */ | |
5381 | priv->radio_on = 0; | |
5382 | priv->radio_short_preamble = 0; | |
5383 | ||
5384 | /* Finalize join worker */ | |
5385 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
3aefc37e NS |
5386 | /* Handle watchdog ba events */ |
5387 | INIT_WORK(&priv->watchdog_ba_handle, mwl8k_watchdog_ba_events); | |
3cc7772c BC |
5388 | |
5389 | /* TX reclaim and RX tasklets. */ | |
5390 | tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw); | |
5391 | tasklet_disable(&priv->poll_tx_task); | |
5392 | tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw); | |
5393 | tasklet_disable(&priv->poll_rx_task); | |
5394 | ||
5395 | /* Power management cookie */ | |
5396 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
5397 | if (priv->cookie == NULL) | |
5398 | return -ENOMEM; | |
5399 | ||
5400 | mutex_init(&priv->fw_mutex); | |
5401 | priv->fw_mutex_owner = NULL; | |
5402 | priv->fw_mutex_depth = 0; | |
5403 | priv->hostcmd_wait = NULL; | |
5404 | ||
5405 | spin_lock_init(&priv->tx_lock); | |
5406 | ||
ac109fd0 BC |
5407 | spin_lock_init(&priv->stream_lock); |
5408 | ||
3cc7772c BC |
5409 | priv->tx_wait = NULL; |
5410 | ||
5411 | rc = mwl8k_probe_hw(hw); | |
5412 | if (rc) | |
5413 | goto err_free_cookie; | |
5414 | ||
5415 | hw->wiphy->interface_modes = 0; | |
5416 | if (priv->ap_macids_supported || priv->device_info->fw_image_ap) | |
5417 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP); | |
5418 | if (priv->sta_macids_supported || priv->device_info->fw_image_sta) | |
5419 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION); | |
5420 | ||
5421 | rc = ieee80211_register_hw(hw); | |
5422 | if (rc) { | |
5423 | wiphy_err(hw->wiphy, "Cannot register device\n"); | |
5424 | goto err_unprobe_hw; | |
5425 | } | |
5426 | ||
5427 | return 0; | |
5428 | ||
5429 | err_unprobe_hw: | |
e600707b | 5430 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
3cc7772c BC |
5431 | mwl8k_txq_deinit(hw, i); |
5432 | mwl8k_rxq_deinit(hw, 0); | |
5433 | ||
be695fc4 | 5434 | err_free_cookie: |
a66098da LB |
5435 | if (priv->cookie != NULL) |
5436 | pci_free_consistent(priv->pdev, 4, | |
5437 | priv->cookie, priv->cookie_dma); | |
5438 | ||
3cc7772c BC |
5439 | return rc; |
5440 | } | |
5441 | static int __devinit mwl8k_probe(struct pci_dev *pdev, | |
5442 | const struct pci_device_id *id) | |
5443 | { | |
5444 | static int printed_version; | |
5445 | struct ieee80211_hw *hw; | |
5446 | struct mwl8k_priv *priv; | |
0863ade8 | 5447 | struct mwl8k_device_info *di; |
3cc7772c BC |
5448 | int rc; |
5449 | ||
5450 | if (!printed_version) { | |
5451 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
5452 | printed_version = 1; | |
5453 | } | |
5454 | ||
5455 | ||
5456 | rc = pci_enable_device(pdev); | |
5457 | if (rc) { | |
5458 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
5459 | MWL8K_NAME); | |
5460 | return rc; | |
5461 | } | |
5462 | ||
5463 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
5464 | if (rc) { | |
5465 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
5466 | MWL8K_NAME); | |
5467 | goto err_disable_device; | |
5468 | } | |
5469 | ||
5470 | pci_set_master(pdev); | |
5471 | ||
5472 | ||
5473 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
5474 | if (hw == NULL) { | |
5475 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
5476 | rc = -ENOMEM; | |
5477 | goto err_free_reg; | |
5478 | } | |
5479 | ||
5480 | SET_IEEE80211_DEV(hw, &pdev->dev); | |
5481 | pci_set_drvdata(pdev, hw); | |
5482 | ||
5483 | priv = hw->priv; | |
5484 | priv->hw = hw; | |
5485 | priv->pdev = pdev; | |
5486 | priv->device_info = &mwl8k_info_tbl[id->driver_data]; | |
5487 | ||
5488 | ||
5489 | priv->sram = pci_iomap(pdev, 0, 0x10000); | |
5490 | if (priv->sram == NULL) { | |
5491 | wiphy_err(hw->wiphy, "Cannot map device SRAM\n"); | |
5492 | goto err_iounmap; | |
5493 | } | |
5494 | ||
5495 | /* | |
5496 | * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. | |
5497 | * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. | |
5498 | */ | |
5499 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
5500 | if (priv->regs == NULL) { | |
5501 | priv->regs = pci_iomap(pdev, 2, 0x10000); | |
5502 | if (priv->regs == NULL) { | |
5503 | wiphy_err(hw->wiphy, "Cannot map device registers\n"); | |
5504 | goto err_iounmap; | |
5505 | } | |
5506 | } | |
5507 | ||
0863ade8 | 5508 | /* |
99020471 BC |
5509 | * Choose the initial fw image depending on user input. If a second |
5510 | * image is available, make it the alternative image that will be | |
5511 | * loaded if the first one fails. | |
0863ade8 | 5512 | */ |
99020471 | 5513 | init_completion(&priv->firmware_loading_complete); |
0863ade8 | 5514 | di = priv->device_info; |
99020471 BC |
5515 | if (ap_mode_default && di->fw_image_ap) { |
5516 | priv->fw_pref = di->fw_image_ap; | |
5517 | priv->fw_alt = di->fw_image_sta; | |
5518 | } else if (!ap_mode_default && di->fw_image_sta) { | |
5519 | priv->fw_pref = di->fw_image_sta; | |
5520 | priv->fw_alt = di->fw_image_ap; | |
5521 | } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) { | |
0863ade8 | 5522 | printk(KERN_WARNING "AP fw is unavailable. Using STA fw."); |
99020471 | 5523 | priv->fw_pref = di->fw_image_sta; |
0863ade8 BC |
5524 | } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) { |
5525 | printk(KERN_WARNING "STA fw is unavailable. Using AP fw."); | |
99020471 BC |
5526 | priv->fw_pref = di->fw_image_ap; |
5527 | } | |
5528 | rc = mwl8k_init_firmware(hw, priv->fw_pref, true); | |
3cc7772c BC |
5529 | if (rc) |
5530 | goto err_stop_firmware; | |
99020471 | 5531 | return rc; |
3cc7772c | 5532 | |
be695fc4 LB |
5533 | err_stop_firmware: |
5534 | mwl8k_hw_reset(priv); | |
be695fc4 LB |
5535 | |
5536 | err_iounmap: | |
a66098da LB |
5537 | if (priv->regs != NULL) |
5538 | pci_iounmap(pdev, priv->regs); | |
5539 | ||
5b9482dd LB |
5540 | if (priv->sram != NULL) |
5541 | pci_iounmap(pdev, priv->sram); | |
5542 | ||
a66098da LB |
5543 | pci_set_drvdata(pdev, NULL); |
5544 | ieee80211_free_hw(hw); | |
5545 | ||
5546 | err_free_reg: | |
5547 | pci_release_regions(pdev); | |
3db95e50 LB |
5548 | |
5549 | err_disable_device: | |
a66098da LB |
5550 | pci_disable_device(pdev); |
5551 | ||
5552 | return rc; | |
5553 | } | |
5554 | ||
230f7af0 | 5555 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
5556 | { |
5557 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
5558 | } | |
5559 | ||
230f7af0 | 5560 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
5561 | { |
5562 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
5563 | struct mwl8k_priv *priv; | |
5564 | int i; | |
5565 | ||
5566 | if (hw == NULL) | |
5567 | return; | |
5568 | priv = hw->priv; | |
5569 | ||
99020471 BC |
5570 | wait_for_completion(&priv->firmware_loading_complete); |
5571 | ||
5572 | if (priv->fw_state == FW_STATE_ERROR) { | |
5573 | mwl8k_hw_reset(priv); | |
5574 | goto unmap; | |
5575 | } | |
5576 | ||
a66098da LB |
5577 | ieee80211_stop_queues(hw); |
5578 | ||
60aa569f LB |
5579 | ieee80211_unregister_hw(hw); |
5580 | ||
67e2eb27 | 5581 | /* Remove TX reclaim and RX tasklets. */ |
1e9f9de3 | 5582 | tasklet_kill(&priv->poll_tx_task); |
67e2eb27 | 5583 | tasklet_kill(&priv->poll_rx_task); |
a66098da | 5584 | |
a66098da LB |
5585 | /* Stop hardware */ |
5586 | mwl8k_hw_reset(priv); | |
5587 | ||
5588 | /* Return all skbs to mac80211 */ | |
e600707b | 5589 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
efb7c49a | 5590 | mwl8k_txq_reclaim(hw, i, INT_MAX, 1); |
a66098da | 5591 | |
e600707b | 5592 | for (i = 0; i < mwl8k_tx_queues(priv); i++) |
a66098da LB |
5593 | mwl8k_txq_deinit(hw, i); |
5594 | ||
5595 | mwl8k_rxq_deinit(hw, 0); | |
5596 | ||
c2c357ce | 5597 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da | 5598 | |
99020471 | 5599 | unmap: |
a66098da | 5600 | pci_iounmap(pdev, priv->regs); |
5b9482dd | 5601 | pci_iounmap(pdev, priv->sram); |
a66098da LB |
5602 | pci_set_drvdata(pdev, NULL); |
5603 | ieee80211_free_hw(hw); | |
5604 | pci_release_regions(pdev); | |
5605 | pci_disable_device(pdev); | |
5606 | } | |
5607 | ||
5608 | static struct pci_driver mwl8k_driver = { | |
5609 | .name = MWL8K_NAME, | |
45a390dd | 5610 | .id_table = mwl8k_pci_id_table, |
a66098da LB |
5611 | .probe = mwl8k_probe, |
5612 | .remove = __devexit_p(mwl8k_remove), | |
5613 | .shutdown = __devexit_p(mwl8k_shutdown), | |
5614 | }; | |
5615 | ||
5616 | static int __init mwl8k_init(void) | |
5617 | { | |
5618 | return pci_register_driver(&mwl8k_driver); | |
5619 | } | |
5620 | ||
5621 | static void __exit mwl8k_exit(void) | |
5622 | { | |
5623 | pci_unregister_driver(&mwl8k_driver); | |
5624 | } | |
5625 | ||
5626 | module_init(mwl8k_init); | |
5627 | module_exit(mwl8k_exit); | |
c2c357ce LB |
5628 | |
5629 | MODULE_DESCRIPTION(MWL8K_DESC); | |
5630 | MODULE_VERSION(MWL8K_VERSION); | |
5631 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
5632 | MODULE_LICENSE("GPL"); |