Commit | Line | Data |
---|---|---|
a66098da | 1 | /* |
ce9e2e1b LB |
2 | * drivers/net/wireless/mwl8k.c |
3 | * Driver for Marvell TOPDOG 802.11 Wireless cards | |
a66098da | 4 | * |
a145d575 | 5 | * Copyright (C) 2008-2009 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> | |
22 | #include <net/mac80211.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/firmware.h> | |
25 | #include <linux/workqueue.h> | |
26 | ||
27 | #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" | |
28 | #define MWL8K_NAME KBUILD_MODNAME | |
a145d575 | 29 | #define MWL8K_VERSION "0.10" |
a66098da | 30 | |
a66098da LB |
31 | /* Register definitions */ |
32 | #define MWL8K_HIU_GEN_PTR 0x00000c10 | |
ce9e2e1b LB |
33 | #define MWL8K_MODE_STA 0x0000005a |
34 | #define MWL8K_MODE_AP 0x000000a5 | |
a66098da | 35 | #define MWL8K_HIU_INT_CODE 0x00000c14 |
ce9e2e1b LB |
36 | #define MWL8K_FWSTA_READY 0xf0f1f2f4 |
37 | #define MWL8K_FWAP_READY 0xf1f2f4a5 | |
38 | #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 | |
a66098da LB |
39 | #define MWL8K_HIU_SCRATCH 0x00000c40 |
40 | ||
41 | /* Host->device communications */ | |
42 | #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 | |
43 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c | |
44 | #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 | |
45 | #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 | |
46 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 | |
ce9e2e1b LB |
47 | #define MWL8K_H2A_INT_DUMMY (1 << 20) |
48 | #define MWL8K_H2A_INT_RESET (1 << 15) | |
49 | #define MWL8K_H2A_INT_DOORBELL (1 << 1) | |
50 | #define MWL8K_H2A_INT_PPA_READY (1 << 0) | |
a66098da LB |
51 | |
52 | /* Device->host communications */ | |
53 | #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c | |
54 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 | |
55 | #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 | |
56 | #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 | |
57 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c | |
ce9e2e1b LB |
58 | #define MWL8K_A2H_INT_DUMMY (1 << 20) |
59 | #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) | |
60 | #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) | |
61 | #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) | |
62 | #define MWL8K_A2H_INT_RADIO_ON (1 << 6) | |
63 | #define MWL8K_A2H_INT_RADIO_OFF (1 << 5) | |
64 | #define MWL8K_A2H_INT_MAC_EVENT (1 << 3) | |
65 | #define MWL8K_A2H_INT_OPC_DONE (1 << 2) | |
66 | #define MWL8K_A2H_INT_RX_READY (1 << 1) | |
67 | #define MWL8K_A2H_INT_TX_DONE (1 << 0) | |
a66098da LB |
68 | |
69 | #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ | |
70 | MWL8K_A2H_INT_CHNL_SWITCHED | \ | |
71 | MWL8K_A2H_INT_QUEUE_EMPTY | \ | |
72 | MWL8K_A2H_INT_RADAR_DETECT | \ | |
73 | MWL8K_A2H_INT_RADIO_ON | \ | |
74 | MWL8K_A2H_INT_RADIO_OFF | \ | |
75 | MWL8K_A2H_INT_MAC_EVENT | \ | |
76 | MWL8K_A2H_INT_OPC_DONE | \ | |
77 | MWL8K_A2H_INT_RX_READY | \ | |
78 | MWL8K_A2H_INT_TX_DONE) | |
79 | ||
a66098da LB |
80 | #define MWL8K_RX_QUEUES 1 |
81 | #define MWL8K_TX_QUEUES 4 | |
82 | ||
54bc3a0d LB |
83 | struct rxd_ops { |
84 | int rxd_size; | |
85 | void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr); | |
86 | void (*rxd_refill)(void *rxd, dma_addr_t addr, int len); | |
87 | int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status); | |
88 | }; | |
89 | ||
45a390dd | 90 | struct mwl8k_device_info { |
a74b295e LB |
91 | char *part_name; |
92 | char *helper_image; | |
93 | char *fw_image; | |
54bc3a0d | 94 | struct rxd_ops *rxd_ops; |
547810e3 | 95 | u16 modes; |
45a390dd LB |
96 | }; |
97 | ||
a66098da | 98 | struct mwl8k_rx_queue { |
45eb400d | 99 | int rxd_count; |
a66098da LB |
100 | |
101 | /* hw receives here */ | |
45eb400d | 102 | int head; |
a66098da LB |
103 | |
104 | /* refill descs here */ | |
45eb400d | 105 | int tail; |
a66098da | 106 | |
54bc3a0d | 107 | void *rxd; |
45eb400d | 108 | dma_addr_t rxd_dma; |
788838eb LB |
109 | struct { |
110 | struct sk_buff *skb; | |
111 | DECLARE_PCI_UNMAP_ADDR(dma) | |
112 | } *buf; | |
a66098da LB |
113 | }; |
114 | ||
a66098da LB |
115 | struct mwl8k_tx_queue { |
116 | /* hw transmits here */ | |
45eb400d | 117 | int head; |
a66098da LB |
118 | |
119 | /* sw appends here */ | |
45eb400d | 120 | int tail; |
a66098da | 121 | |
45eb400d LB |
122 | struct ieee80211_tx_queue_stats stats; |
123 | struct mwl8k_tx_desc *txd; | |
124 | dma_addr_t txd_dma; | |
125 | struct sk_buff **skb; | |
a66098da LB |
126 | }; |
127 | ||
128 | /* Pointers to the firmware data and meta information about it. */ | |
129 | struct mwl8k_firmware { | |
a66098da LB |
130 | /* Boot helper code */ |
131 | struct firmware *helper; | |
a74b295e LB |
132 | |
133 | /* Microcode */ | |
134 | struct firmware *ucode; | |
a66098da LB |
135 | }; |
136 | ||
137 | struct mwl8k_priv { | |
5b9482dd | 138 | void __iomem *sram; |
a66098da LB |
139 | void __iomem *regs; |
140 | struct ieee80211_hw *hw; | |
141 | ||
142 | struct pci_dev *pdev; | |
a66098da | 143 | |
45a390dd | 144 | struct mwl8k_device_info *device_info; |
eae74e65 | 145 | bool ap_fw; |
54bc3a0d | 146 | struct rxd_ops *rxd_ops; |
45a390dd | 147 | |
a66098da LB |
148 | /* firmware files and meta data */ |
149 | struct mwl8k_firmware fw; | |
a66098da | 150 | |
618952a7 LB |
151 | /* firmware access */ |
152 | struct mutex fw_mutex; | |
153 | struct task_struct *fw_mutex_owner; | |
154 | int fw_mutex_depth; | |
618952a7 LB |
155 | struct completion *hostcmd_wait; |
156 | ||
a66098da LB |
157 | /* lock held over TX and TX reap */ |
158 | spinlock_t tx_lock; | |
a66098da | 159 | |
88de754a LB |
160 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
161 | struct completion *tx_wait; | |
162 | ||
a66098da | 163 | struct ieee80211_vif *vif; |
a66098da LB |
164 | |
165 | struct ieee80211_channel *current_channel; | |
166 | ||
167 | /* power management status cookie from firmware */ | |
168 | u32 *cookie; | |
169 | dma_addr_t cookie_dma; | |
170 | ||
171 | u16 num_mcaddrs; | |
a66098da | 172 | u8 hw_rev; |
2aa7b01f | 173 | u32 fw_rev; |
a66098da LB |
174 | |
175 | /* | |
176 | * Running count of TX packets in flight, to avoid | |
177 | * iterating over the transmit rings each time. | |
178 | */ | |
179 | int pending_tx_pkts; | |
180 | ||
181 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
182 | struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; | |
183 | ||
184 | /* PHY parameters */ | |
185 | struct ieee80211_supported_band band; | |
186 | struct ieee80211_channel channels[14]; | |
5dfd3e2c | 187 | struct ieee80211_rate rates[13]; |
a66098da | 188 | |
c46563b7 | 189 | bool radio_on; |
68ce3884 | 190 | bool radio_short_preamble; |
a43c49a8 | 191 | bool sniffer_enabled; |
0439b1f5 | 192 | bool wmm_enabled; |
a66098da | 193 | |
a66098da LB |
194 | /* XXX need to convert this to handle multiple interfaces */ |
195 | bool capture_beacon; | |
d89173f2 | 196 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
197 | struct sk_buff *beacon_skb; |
198 | ||
199 | /* | |
200 | * This FJ worker has to be global as it is scheduled from the | |
201 | * RX handler. At this point we don't know which interface it | |
202 | * belongs to until the list of bssids waiting to complete join | |
203 | * is checked. | |
204 | */ | |
205 | struct work_struct finalize_join_worker; | |
206 | ||
207 | /* Tasklet to reclaim TX descriptors and buffers after tx */ | |
208 | struct tasklet_struct tx_reclaim_task; | |
a66098da LB |
209 | }; |
210 | ||
211 | /* Per interface specific private data */ | |
212 | struct mwl8k_vif { | |
a66098da LB |
213 | /* backpointer to parent config block */ |
214 | struct mwl8k_priv *priv; | |
215 | ||
216 | /* BSS config of AP or IBSS from mac80211*/ | |
217 | struct ieee80211_bss_conf bss_info; | |
218 | ||
219 | /* BSSID of AP or IBSS */ | |
d89173f2 LB |
220 | u8 bssid[ETH_ALEN]; |
221 | u8 mac_addr[ETH_ALEN]; | |
a66098da LB |
222 | |
223 | /* | |
224 | * Subset of supported legacy rates. | |
225 | * Intersection of AP and STA supported rates. | |
226 | */ | |
5dfd3e2c | 227 | struct ieee80211_rate legacy_rates[13]; |
a66098da LB |
228 | |
229 | /* number of supported legacy rates */ | |
230 | u8 legacy_nrates; | |
231 | ||
a66098da LB |
232 | /* Index into station database.Returned by update_sta_db call */ |
233 | u8 peer_id; | |
234 | ||
235 | /* Non AMPDU sequence number assigned by driver */ | |
236 | u16 seqno; | |
a66098da LB |
237 | }; |
238 | ||
a94cc97e | 239 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
a66098da LB |
240 | |
241 | static const struct ieee80211_channel mwl8k_channels[] = { | |
242 | { .center_freq = 2412, .hw_value = 1, }, | |
243 | { .center_freq = 2417, .hw_value = 2, }, | |
244 | { .center_freq = 2422, .hw_value = 3, }, | |
245 | { .center_freq = 2427, .hw_value = 4, }, | |
246 | { .center_freq = 2432, .hw_value = 5, }, | |
247 | { .center_freq = 2437, .hw_value = 6, }, | |
248 | { .center_freq = 2442, .hw_value = 7, }, | |
249 | { .center_freq = 2447, .hw_value = 8, }, | |
250 | { .center_freq = 2452, .hw_value = 9, }, | |
251 | { .center_freq = 2457, .hw_value = 10, }, | |
252 | { .center_freq = 2462, .hw_value = 11, }, | |
253 | }; | |
254 | ||
255 | static const struct ieee80211_rate mwl8k_rates[] = { | |
256 | { .bitrate = 10, .hw_value = 2, }, | |
257 | { .bitrate = 20, .hw_value = 4, }, | |
258 | { .bitrate = 55, .hw_value = 11, }, | |
5dfd3e2c LB |
259 | { .bitrate = 110, .hw_value = 22, }, |
260 | { .bitrate = 220, .hw_value = 44, }, | |
a66098da LB |
261 | { .bitrate = 60, .hw_value = 12, }, |
262 | { .bitrate = 90, .hw_value = 18, }, | |
a66098da LB |
263 | { .bitrate = 120, .hw_value = 24, }, |
264 | { .bitrate = 180, .hw_value = 36, }, | |
265 | { .bitrate = 240, .hw_value = 48, }, | |
266 | { .bitrate = 360, .hw_value = 72, }, | |
267 | { .bitrate = 480, .hw_value = 96, }, | |
268 | { .bitrate = 540, .hw_value = 108, }, | |
269 | }; | |
270 | ||
a66098da LB |
271 | /* Set or get info from Firmware */ |
272 | #define MWL8K_CMD_SET 0x0001 | |
273 | #define MWL8K_CMD_GET 0x0000 | |
274 | ||
275 | /* Firmware command codes */ | |
276 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
277 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
42fba21d | 278 | #define MWL8K_CMD_SET_HW_SPEC 0x0004 |
a66098da LB |
279 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 |
280 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
281 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
282 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
08b06347 | 283 | #define MWL8K_CMD_RF_ANTENNA 0x0020 |
a66098da LB |
284 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
285 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
286 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
287 | #define MWL8K_CMD_SET_AID 0x010d | |
288 | #define MWL8K_CMD_SET_RATE 0x0110 | |
289 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
290 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 291 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
292 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
293 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 294 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 295 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 296 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
32060e1b | 297 | #define MWL8K_CMD_SET_MAC_ADDR 0x0202 |
a66098da | 298 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
ff45fc60 | 299 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
a66098da LB |
300 | |
301 | static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) | |
302 | { | |
303 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ | |
304 | snprintf(buf, bufsize, "%s", #x);\ | |
305 | return buf;\ | |
306 | } while (0) | |
ce9e2e1b | 307 | switch (cmd & ~0x8000) { |
a66098da LB |
308 | MWL8K_CMDNAME(CODE_DNLD); |
309 | MWL8K_CMDNAME(GET_HW_SPEC); | |
42fba21d | 310 | MWL8K_CMDNAME(SET_HW_SPEC); |
a66098da LB |
311 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); |
312 | MWL8K_CMDNAME(GET_STAT); | |
313 | MWL8K_CMDNAME(RADIO_CONTROL); | |
314 | MWL8K_CMDNAME(RF_TX_POWER); | |
08b06347 | 315 | MWL8K_CMDNAME(RF_ANTENNA); |
a66098da LB |
316 | MWL8K_CMDNAME(SET_PRE_SCAN); |
317 | MWL8K_CMDNAME(SET_POST_SCAN); | |
318 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
319 | MWL8K_CMDNAME(SET_AID); |
320 | MWL8K_CMDNAME(SET_RATE); | |
321 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
322 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 323 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
324 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
325 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 326 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 327 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 328 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
32060e1b | 329 | MWL8K_CMDNAME(SET_MAC_ADDR); |
a66098da | 330 | MWL8K_CMDNAME(SET_RATEADAPT_MODE); |
ff45fc60 | 331 | MWL8K_CMDNAME(UPDATE_STADB); |
a66098da LB |
332 | default: |
333 | snprintf(buf, bufsize, "0x%x", cmd); | |
334 | } | |
335 | #undef MWL8K_CMDNAME | |
336 | ||
337 | return buf; | |
338 | } | |
339 | ||
340 | /* Hardware and firmware reset */ | |
341 | static void mwl8k_hw_reset(struct mwl8k_priv *priv) | |
342 | { | |
343 | iowrite32(MWL8K_H2A_INT_RESET, | |
344 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
345 | iowrite32(MWL8K_H2A_INT_RESET, | |
346 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
347 | msleep(20); | |
348 | } | |
349 | ||
350 | /* Release fw image */ | |
351 | static void mwl8k_release_fw(struct firmware **fw) | |
352 | { | |
353 | if (*fw == NULL) | |
354 | return; | |
355 | release_firmware(*fw); | |
356 | *fw = NULL; | |
357 | } | |
358 | ||
359 | static void mwl8k_release_firmware(struct mwl8k_priv *priv) | |
360 | { | |
361 | mwl8k_release_fw(&priv->fw.ucode); | |
362 | mwl8k_release_fw(&priv->fw.helper); | |
363 | } | |
364 | ||
365 | /* Request fw image */ | |
366 | static int mwl8k_request_fw(struct mwl8k_priv *priv, | |
c2c357ce | 367 | const char *fname, struct firmware **fw) |
a66098da LB |
368 | { |
369 | /* release current image */ | |
370 | if (*fw != NULL) | |
371 | mwl8k_release_fw(fw); | |
372 | ||
373 | return request_firmware((const struct firmware **)fw, | |
c2c357ce | 374 | fname, &priv->pdev->dev); |
a66098da LB |
375 | } |
376 | ||
45a390dd | 377 | static int mwl8k_request_firmware(struct mwl8k_priv *priv) |
a66098da | 378 | { |
a74b295e | 379 | struct mwl8k_device_info *di = priv->device_info; |
a66098da LB |
380 | int rc; |
381 | ||
a74b295e LB |
382 | if (di->helper_image != NULL) { |
383 | rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw.helper); | |
384 | if (rc) { | |
385 | printk(KERN_ERR "%s: Error requesting helper " | |
386 | "firmware file %s\n", pci_name(priv->pdev), | |
387 | di->helper_image); | |
388 | return rc; | |
389 | } | |
a66098da LB |
390 | } |
391 | ||
a74b295e | 392 | rc = mwl8k_request_fw(priv, di->fw_image, &priv->fw.ucode); |
a66098da | 393 | if (rc) { |
c2c357ce | 394 | printk(KERN_ERR "%s: Error requesting firmware file %s\n", |
a74b295e | 395 | pci_name(priv->pdev), di->fw_image); |
a66098da LB |
396 | mwl8k_release_fw(&priv->fw.helper); |
397 | return rc; | |
398 | } | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | struct mwl8k_cmd_pkt { | |
404 | __le16 code; | |
405 | __le16 length; | |
406 | __le16 seq_num; | |
407 | __le16 result; | |
408 | char payload[0]; | |
409 | } __attribute__((packed)); | |
410 | ||
411 | /* | |
412 | * Firmware loading. | |
413 | */ | |
414 | static int | |
415 | mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) | |
416 | { | |
417 | void __iomem *regs = priv->regs; | |
418 | dma_addr_t dma_addr; | |
a66098da LB |
419 | int loops; |
420 | ||
421 | dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); | |
422 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
423 | return -ENOMEM; | |
424 | ||
425 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
426 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
427 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
428 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
429 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
430 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
431 | ||
a66098da LB |
432 | loops = 1000; |
433 | do { | |
434 | u32 int_code; | |
435 | ||
436 | int_code = ioread32(regs + MWL8K_HIU_INT_CODE); | |
437 | if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { | |
438 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
a66098da LB |
439 | break; |
440 | } | |
441 | ||
3d76e82c | 442 | cond_resched(); |
a66098da LB |
443 | udelay(1); |
444 | } while (--loops); | |
445 | ||
446 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
447 | ||
d4b70570 | 448 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
449 | } |
450 | ||
451 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
452 | const u8 *data, size_t length) | |
453 | { | |
454 | struct mwl8k_cmd_pkt *cmd; | |
455 | int done; | |
456 | int rc = 0; | |
457 | ||
458 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
459 | if (cmd == NULL) | |
460 | return -ENOMEM; | |
461 | ||
462 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
463 | cmd->seq_num = 0; | |
464 | cmd->result = 0; | |
465 | ||
466 | done = 0; | |
467 | while (length) { | |
468 | int block_size = length > 256 ? 256 : length; | |
469 | ||
470 | memcpy(cmd->payload, data + done, block_size); | |
471 | cmd->length = cpu_to_le16(block_size); | |
472 | ||
473 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
474 | sizeof(*cmd) + block_size); | |
475 | if (rc) | |
476 | break; | |
477 | ||
478 | done += block_size; | |
479 | length -= block_size; | |
480 | } | |
481 | ||
482 | if (!rc) { | |
483 | cmd->length = 0; | |
484 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
485 | } | |
486 | ||
487 | kfree(cmd); | |
488 | ||
489 | return rc; | |
490 | } | |
491 | ||
492 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
493 | const u8 *data, size_t length) | |
494 | { | |
495 | unsigned char *buffer; | |
496 | int may_continue, rc = 0; | |
497 | u32 done, prev_block_size; | |
498 | ||
499 | buffer = kmalloc(1024, GFP_KERNEL); | |
500 | if (buffer == NULL) | |
501 | return -ENOMEM; | |
502 | ||
503 | done = 0; | |
504 | prev_block_size = 0; | |
505 | may_continue = 1000; | |
506 | while (may_continue > 0) { | |
507 | u32 block_size; | |
508 | ||
509 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
510 | if (block_size & 1) { | |
511 | block_size &= ~1; | |
512 | may_continue--; | |
513 | } else { | |
514 | done += prev_block_size; | |
515 | length -= prev_block_size; | |
516 | } | |
517 | ||
518 | if (block_size > 1024 || block_size > length) { | |
519 | rc = -EOVERFLOW; | |
520 | break; | |
521 | } | |
522 | ||
523 | if (length == 0) { | |
524 | rc = 0; | |
525 | break; | |
526 | } | |
527 | ||
528 | if (block_size == 0) { | |
529 | rc = -EPROTO; | |
530 | may_continue--; | |
531 | udelay(1); | |
532 | continue; | |
533 | } | |
534 | ||
535 | prev_block_size = block_size; | |
536 | memcpy(buffer, data + done, block_size); | |
537 | ||
538 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
539 | if (rc) | |
540 | break; | |
541 | } | |
542 | ||
543 | if (!rc && length != 0) | |
544 | rc = -EREMOTEIO; | |
545 | ||
546 | kfree(buffer); | |
547 | ||
548 | return rc; | |
549 | } | |
550 | ||
c2c357ce | 551 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 552 | { |
c2c357ce LB |
553 | struct mwl8k_priv *priv = hw->priv; |
554 | struct firmware *fw = priv->fw.ucode; | |
eae74e65 | 555 | struct mwl8k_device_info *di = priv->device_info; |
c2c357ce LB |
556 | int rc; |
557 | int loops; | |
558 | ||
559 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
560 | struct firmware *helper = priv->fw.helper; | |
a66098da | 561 | |
c2c357ce LB |
562 | if (helper == NULL) { |
563 | printk(KERN_ERR "%s: helper image needed but none " | |
564 | "given\n", pci_name(priv->pdev)); | |
565 | return -EINVAL; | |
566 | } | |
a66098da | 567 | |
c2c357ce | 568 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
569 | if (rc) { |
570 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 571 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
572 | return rc; |
573 | } | |
574 | msleep(1); | |
575 | ||
c2c357ce | 576 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 577 | } else { |
c2c357ce | 578 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
579 | } |
580 | ||
581 | if (rc) { | |
c2c357ce LB |
582 | printk(KERN_ERR "%s: unable to load firmware image\n", |
583 | pci_name(priv->pdev)); | |
a66098da LB |
584 | return rc; |
585 | } | |
586 | ||
eae74e65 LB |
587 | if (di->modes & BIT(NL80211_IFTYPE_AP)) |
588 | iowrite32(MWL8K_MODE_AP, priv->regs + MWL8K_HIU_GEN_PTR); | |
589 | else | |
590 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); | |
a66098da LB |
591 | msleep(1); |
592 | ||
593 | loops = 200000; | |
594 | do { | |
eae74e65 LB |
595 | u32 ready_code; |
596 | ||
597 | ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
598 | if (ready_code == MWL8K_FWAP_READY) { | |
599 | priv->ap_fw = 1; | |
600 | break; | |
601 | } else if (ready_code == MWL8K_FWSTA_READY) { | |
602 | priv->ap_fw = 0; | |
a66098da | 603 | break; |
eae74e65 LB |
604 | } |
605 | ||
606 | cond_resched(); | |
a66098da LB |
607 | udelay(1); |
608 | } while (--loops); | |
609 | ||
610 | return loops ? 0 : -ETIMEDOUT; | |
611 | } | |
612 | ||
613 | ||
614 | /* | |
615 | * Defines shared between transmission and reception. | |
616 | */ | |
617 | /* HT control fields for firmware */ | |
618 | struct ewc_ht_info { | |
619 | __le16 control1; | |
620 | __le16 control2; | |
621 | __le16 control3; | |
622 | } __attribute__((packed)); | |
623 | ||
624 | /* Firmware Station database operations */ | |
625 | #define MWL8K_STA_DB_ADD_ENTRY 0 | |
626 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 | |
627 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
628 | #define MWL8K_STA_DB_FLUSH 3 | |
629 | ||
630 | /* Peer Entry flags - used to define the type of the peer node */ | |
631 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
a66098da | 632 | |
5dfd3e2c | 633 | #define MWL8K_IEEE_LEGACY_DATA_RATES 13 |
a66098da | 634 | #define MWL8K_MCS_BITMAP_SIZE 16 |
a66098da LB |
635 | |
636 | struct peer_capability_info { | |
637 | /* Peer type - AP vs. STA. */ | |
638 | __u8 peer_type; | |
639 | ||
640 | /* Basic 802.11 capabilities from assoc resp. */ | |
641 | __le16 basic_caps; | |
642 | ||
643 | /* Set if peer supports 802.11n high throughput (HT). */ | |
644 | __u8 ht_support; | |
645 | ||
646 | /* Valid if HT is supported. */ | |
647 | __le16 ht_caps; | |
648 | __u8 extended_ht_caps; | |
649 | struct ewc_ht_info ewc_info; | |
650 | ||
651 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
652 | __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
653 | ||
654 | /* HT rate table. Intersection of our rates and peer rates. */ | |
655 | __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; | |
c23b5a69 | 656 | __u8 pad[16]; |
a66098da LB |
657 | |
658 | /* If set, interoperability mode, no proprietary extensions. */ | |
659 | __u8 interop; | |
660 | __u8 pad2; | |
661 | __u8 station_id; | |
662 | __le16 amsdu_enabled; | |
663 | } __attribute__((packed)); | |
664 | ||
665 | /* Inline functions to manipulate QoS field in data descriptor. */ | |
a66098da LB |
666 | static inline u16 mwl8k_qos_setbit_eosp(u16 qos) |
667 | { | |
668 | u16 val_mask = 1 << 4; | |
669 | ||
670 | /* End of Service Period Bit 4 */ | |
671 | return qos | val_mask; | |
672 | } | |
673 | ||
674 | static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy) | |
675 | { | |
676 | u16 val_mask = 0x3; | |
677 | u8 shift = 5; | |
678 | u16 qos_mask = ~(val_mask << shift); | |
679 | ||
680 | /* Ack Policy Bit 5-6 */ | |
681 | return (qos & qos_mask) | ((ack_policy & val_mask) << shift); | |
682 | } | |
683 | ||
684 | static inline u16 mwl8k_qos_setbit_amsdu(u16 qos) | |
685 | { | |
686 | u16 val_mask = 1 << 7; | |
687 | ||
688 | /* AMSDU present Bit 7 */ | |
689 | return qos | val_mask; | |
690 | } | |
691 | ||
692 | static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) | |
693 | { | |
694 | u16 val_mask = 0xff; | |
695 | u8 shift = 8; | |
696 | u16 qos_mask = ~(val_mask << shift); | |
697 | ||
698 | /* Queue Length Bits 8-15 */ | |
699 | return (qos & qos_mask) | ((len & val_mask) << shift); | |
700 | } | |
701 | ||
702 | /* DMA header used by firmware and hardware. */ | |
703 | struct mwl8k_dma_data { | |
704 | __le16 fwlen; | |
705 | struct ieee80211_hdr wh; | |
706 | } __attribute__((packed)); | |
707 | ||
708 | /* Routines to add/remove DMA header from skb. */ | |
76266b2a | 709 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb) |
a66098da | 710 | { |
76266b2a | 711 | struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data; |
a66098da | 712 | void *dst, *src = &tr->wh; |
76266b2a | 713 | int hdrlen = ieee80211_hdrlen(tr->wh.frame_control); |
a66098da LB |
714 | u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; |
715 | ||
716 | dst = (void *)tr + space; | |
717 | if (dst != src) { | |
718 | memmove(dst, src, hdrlen); | |
719 | skb_pull(skb, space); | |
720 | } | |
a66098da LB |
721 | } |
722 | ||
76266b2a | 723 | static inline void mwl8k_add_dma_header(struct sk_buff *skb) |
a66098da LB |
724 | { |
725 | struct ieee80211_hdr *wh; | |
726 | u32 hdrlen, pktlen; | |
727 | struct mwl8k_dma_data *tr; | |
728 | ||
729 | wh = (struct ieee80211_hdr *)skb->data; | |
730 | hdrlen = ieee80211_hdrlen(wh->frame_control); | |
731 | pktlen = skb->len; | |
732 | ||
733 | /* | |
734 | * Copy up/down the 802.11 header; the firmware requires | |
735 | * we present a 2-byte payload length followed by a | |
736 | * 4-address header (w/o QoS), followed (optionally) by | |
737 | * any WEP/ExtIV header (but only filled in for CCMP). | |
738 | */ | |
739 | if (hdrlen != sizeof(struct mwl8k_dma_data)) | |
740 | skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); | |
741 | ||
742 | tr = (struct mwl8k_dma_data *)skb->data; | |
743 | if (wh != &tr->wh) | |
744 | memmove(&tr->wh, wh, hdrlen); | |
745 | ||
746 | /* Clear addr4 */ | |
d89173f2 | 747 | memset(tr->wh.addr4, 0, ETH_ALEN); |
a66098da LB |
748 | |
749 | /* | |
750 | * Firmware length is the length of the fully formed "802.11 | |
751 | * payload". That is, everything except for the 802.11 header. | |
752 | * This includes all crypto material including the MIC. | |
753 | */ | |
754 | tr->fwlen = cpu_to_le16(pktlen - hdrlen); | |
a66098da LB |
755 | } |
756 | ||
757 | ||
758 | /* | |
759 | * Packet reception. | |
760 | */ | |
54bc3a0d | 761 | struct mwl8k_rxd_8687 { |
a66098da LB |
762 | __le16 pkt_len; |
763 | __u8 link_quality; | |
764 | __u8 noise_level; | |
765 | __le32 pkt_phys_addr; | |
45eb400d | 766 | __le32 next_rxd_phys_addr; |
a66098da LB |
767 | __le16 qos_control; |
768 | __le16 rate_info; | |
769 | __le32 pad0[4]; | |
770 | __u8 rssi; | |
771 | __u8 channel; | |
772 | __le16 pad1; | |
773 | __u8 rx_ctrl; | |
774 | __u8 rx_status; | |
775 | __u8 pad2[2]; | |
776 | } __attribute__((packed)); | |
777 | ||
54bc3a0d LB |
778 | #define MWL8K_8687_RATE_INFO_SHORTPRE 0x8000 |
779 | #define MWL8K_8687_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3) | |
780 | #define MWL8K_8687_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f) | |
781 | #define MWL8K_8687_RATE_INFO_40MHZ 0x0004 | |
782 | #define MWL8K_8687_RATE_INFO_SHORTGI 0x0002 | |
783 | #define MWL8K_8687_RATE_INFO_MCS_FORMAT 0x0001 | |
784 | ||
785 | #define MWL8K_8687_RX_CTRL_OWNED_BY_HOST 0x02 | |
786 | ||
787 | static void mwl8k_rxd_8687_init(void *_rxd, dma_addr_t next_dma_addr) | |
788 | { | |
789 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
790 | ||
791 | rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr); | |
792 | rxd->rx_ctrl = MWL8K_8687_RX_CTRL_OWNED_BY_HOST; | |
793 | } | |
794 | ||
795 | static void mwl8k_rxd_8687_refill(void *_rxd, dma_addr_t addr, int len) | |
796 | { | |
797 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
798 | ||
799 | rxd->pkt_len = cpu_to_le16(len); | |
800 | rxd->pkt_phys_addr = cpu_to_le32(addr); | |
801 | wmb(); | |
802 | rxd->rx_ctrl = 0; | |
803 | } | |
804 | ||
805 | static int | |
806 | mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status) | |
807 | { | |
808 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
809 | u16 rate_info; | |
810 | ||
811 | if (!(rxd->rx_ctrl & MWL8K_8687_RX_CTRL_OWNED_BY_HOST)) | |
812 | return -1; | |
813 | rmb(); | |
814 | ||
815 | rate_info = le16_to_cpu(rxd->rate_info); | |
816 | ||
817 | memset(status, 0, sizeof(*status)); | |
818 | ||
819 | status->signal = -rxd->rssi; | |
820 | status->noise = -rxd->noise_level; | |
821 | status->qual = rxd->link_quality; | |
822 | status->antenna = MWL8K_8687_RATE_INFO_ANTSELECT(rate_info); | |
823 | status->rate_idx = MWL8K_8687_RATE_INFO_RATEID(rate_info); | |
824 | ||
825 | if (rate_info & MWL8K_8687_RATE_INFO_SHORTPRE) | |
826 | status->flag |= RX_FLAG_SHORTPRE; | |
827 | if (rate_info & MWL8K_8687_RATE_INFO_40MHZ) | |
828 | status->flag |= RX_FLAG_40MHZ; | |
829 | if (rate_info & MWL8K_8687_RATE_INFO_SHORTGI) | |
830 | status->flag |= RX_FLAG_SHORT_GI; | |
831 | if (rate_info & MWL8K_8687_RATE_INFO_MCS_FORMAT) | |
832 | status->flag |= RX_FLAG_HT; | |
833 | ||
834 | status->band = IEEE80211_BAND_2GHZ; | |
835 | status->freq = ieee80211_channel_to_frequency(rxd->channel); | |
836 | ||
837 | return le16_to_cpu(rxd->pkt_len); | |
838 | } | |
839 | ||
840 | static struct rxd_ops rxd_8687_ops = { | |
841 | .rxd_size = sizeof(struct mwl8k_rxd_8687), | |
842 | .rxd_init = mwl8k_rxd_8687_init, | |
843 | .rxd_refill = mwl8k_rxd_8687_refill, | |
844 | .rxd_process = mwl8k_rxd_8687_process, | |
845 | }; | |
846 | ||
847 | ||
a66098da LB |
848 | #define MWL8K_RX_DESCS 256 |
849 | #define MWL8K_RX_MAXSZ 3800 | |
850 | ||
851 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) | |
852 | { | |
853 | struct mwl8k_priv *priv = hw->priv; | |
854 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
855 | int size; | |
856 | int i; | |
857 | ||
45eb400d LB |
858 | rxq->rxd_count = 0; |
859 | rxq->head = 0; | |
860 | rxq->tail = 0; | |
a66098da | 861 | |
54bc3a0d | 862 | size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size; |
a66098da | 863 | |
45eb400d LB |
864 | rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma); |
865 | if (rxq->rxd == NULL) { | |
a66098da | 866 | printk(KERN_ERR "%s: failed to alloc RX descriptors\n", |
c2c357ce | 867 | wiphy_name(hw->wiphy)); |
a66098da LB |
868 | return -ENOMEM; |
869 | } | |
45eb400d | 870 | memset(rxq->rxd, 0, size); |
a66098da | 871 | |
788838eb LB |
872 | rxq->buf = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->buf), GFP_KERNEL); |
873 | if (rxq->buf == NULL) { | |
a66098da | 874 | printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", |
c2c357ce | 875 | wiphy_name(hw->wiphy)); |
45eb400d | 876 | pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma); |
a66098da LB |
877 | return -ENOMEM; |
878 | } | |
788838eb | 879 | memset(rxq->buf, 0, MWL8K_RX_DESCS * sizeof(*rxq->buf)); |
a66098da LB |
880 | |
881 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
54bc3a0d LB |
882 | int desc_size; |
883 | void *rxd; | |
a66098da | 884 | int nexti; |
54bc3a0d LB |
885 | dma_addr_t next_dma_addr; |
886 | ||
887 | desc_size = priv->rxd_ops->rxd_size; | |
888 | rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size); | |
a66098da | 889 | |
54bc3a0d LB |
890 | nexti = i + 1; |
891 | if (nexti == MWL8K_RX_DESCS) | |
892 | nexti = 0; | |
893 | next_dma_addr = rxq->rxd_dma + (nexti * desc_size); | |
a66098da | 894 | |
54bc3a0d | 895 | priv->rxd_ops->rxd_init(rxd, next_dma_addr); |
a66098da LB |
896 | } |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
902 | { | |
903 | struct mwl8k_priv *priv = hw->priv; | |
904 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
905 | int refilled; | |
906 | ||
907 | refilled = 0; | |
45eb400d | 908 | while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) { |
a66098da | 909 | struct sk_buff *skb; |
788838eb | 910 | dma_addr_t addr; |
a66098da | 911 | int rx; |
54bc3a0d | 912 | void *rxd; |
a66098da LB |
913 | |
914 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
915 | if (skb == NULL) | |
916 | break; | |
917 | ||
788838eb LB |
918 | addr = pci_map_single(priv->pdev, skb->data, |
919 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE); | |
a66098da | 920 | |
54bc3a0d LB |
921 | rxq->rxd_count++; |
922 | rx = rxq->tail++; | |
923 | if (rxq->tail == MWL8K_RX_DESCS) | |
924 | rxq->tail = 0; | |
788838eb LB |
925 | rxq->buf[rx].skb = skb; |
926 | pci_unmap_addr_set(&rxq->buf[rx], dma, addr); | |
54bc3a0d LB |
927 | |
928 | rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size); | |
929 | priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ); | |
a66098da LB |
930 | |
931 | refilled++; | |
932 | } | |
933 | ||
934 | return refilled; | |
935 | } | |
936 | ||
937 | /* Must be called only when the card's reception is completely halted */ | |
938 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
939 | { | |
940 | struct mwl8k_priv *priv = hw->priv; | |
941 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
942 | int i; | |
943 | ||
944 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
788838eb LB |
945 | if (rxq->buf[i].skb != NULL) { |
946 | pci_unmap_single(priv->pdev, | |
947 | pci_unmap_addr(&rxq->buf[i], dma), | |
948 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
949 | pci_unmap_addr_set(&rxq->buf[i], dma, 0); | |
950 | ||
951 | kfree_skb(rxq->buf[i].skb); | |
952 | rxq->buf[i].skb = NULL; | |
a66098da LB |
953 | } |
954 | } | |
955 | ||
788838eb LB |
956 | kfree(rxq->buf); |
957 | rxq->buf = NULL; | |
a66098da LB |
958 | |
959 | pci_free_consistent(priv->pdev, | |
54bc3a0d | 960 | MWL8K_RX_DESCS * priv->rxd_ops->rxd_size, |
45eb400d LB |
961 | rxq->rxd, rxq->rxd_dma); |
962 | rxq->rxd = NULL; | |
a66098da LB |
963 | } |
964 | ||
965 | ||
966 | /* | |
967 | * Scan a list of BSSIDs to process for finalize join. | |
968 | * Allows for extension to process multiple BSSIDs. | |
969 | */ | |
970 | static inline int | |
971 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
972 | { | |
973 | return priv->capture_beacon && | |
974 | ieee80211_is_beacon(wh->frame_control) && | |
975 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
976 | } | |
977 | ||
3779752d LB |
978 | static inline void mwl8k_save_beacon(struct ieee80211_hw *hw, |
979 | struct sk_buff *skb) | |
a66098da | 980 | { |
3779752d LB |
981 | struct mwl8k_priv *priv = hw->priv; |
982 | ||
a66098da | 983 | priv->capture_beacon = false; |
d89173f2 | 984 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
985 | |
986 | /* | |
987 | * Use GFP_ATOMIC as rxq_process is called from | |
988 | * the primary interrupt handler, memory allocation call | |
989 | * must not sleep. | |
990 | */ | |
991 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
992 | if (priv->beacon_skb != NULL) | |
3779752d | 993 | ieee80211_queue_work(hw, &priv->finalize_join_worker); |
a66098da LB |
994 | } |
995 | ||
996 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) | |
997 | { | |
998 | struct mwl8k_priv *priv = hw->priv; | |
999 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1000 | int processed; | |
1001 | ||
1002 | processed = 0; | |
45eb400d | 1003 | while (rxq->rxd_count && limit--) { |
a66098da | 1004 | struct sk_buff *skb; |
54bc3a0d LB |
1005 | void *rxd; |
1006 | int pkt_len; | |
a66098da | 1007 | struct ieee80211_rx_status status; |
a66098da | 1008 | |
788838eb | 1009 | skb = rxq->buf[rxq->head].skb; |
d25f9f13 LB |
1010 | if (skb == NULL) |
1011 | break; | |
54bc3a0d LB |
1012 | |
1013 | rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size); | |
1014 | ||
1015 | pkt_len = priv->rxd_ops->rxd_process(rxd, &status); | |
1016 | if (pkt_len < 0) | |
1017 | break; | |
1018 | ||
788838eb LB |
1019 | rxq->buf[rxq->head].skb = NULL; |
1020 | ||
1021 | pci_unmap_single(priv->pdev, | |
1022 | pci_unmap_addr(&rxq->buf[rxq->head], dma), | |
1023 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
1024 | pci_unmap_addr_set(&rxq->buf[rxq->head], dma, 0); | |
a66098da | 1025 | |
54bc3a0d LB |
1026 | rxq->head++; |
1027 | if (rxq->head == MWL8K_RX_DESCS) | |
1028 | rxq->head = 0; | |
1029 | ||
45eb400d | 1030 | rxq->rxd_count--; |
a66098da | 1031 | |
54bc3a0d | 1032 | skb_put(skb, pkt_len); |
76266b2a | 1033 | mwl8k_remove_dma_header(skb); |
a66098da | 1034 | |
a66098da | 1035 | /* |
c2c357ce LB |
1036 | * Check for a pending join operation. Save a |
1037 | * copy of the beacon and schedule a tasklet to | |
1038 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da | 1039 | */ |
54bc3a0d | 1040 | if (mwl8k_capture_bssid(priv, (void *)skb->data)) |
3779752d | 1041 | mwl8k_save_beacon(hw, skb); |
a66098da | 1042 | |
f1d58c25 JB |
1043 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
1044 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
1045 | |
1046 | processed++; | |
1047 | } | |
1048 | ||
1049 | return processed; | |
1050 | } | |
1051 | ||
1052 | ||
1053 | /* | |
1054 | * Packet transmission. | |
1055 | */ | |
1056 | ||
a66098da LB |
1057 | /* Transmit packet ACK policy */ |
1058 | #define MWL8K_TXD_ACK_POLICY_NORMAL 0 | |
a66098da LB |
1059 | #define MWL8K_TXD_ACK_POLICY_BLOCKACK 3 |
1060 | ||
a66098da LB |
1061 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
1062 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
1063 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
1064 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 1065 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da LB |
1066 | |
1067 | struct mwl8k_tx_desc { | |
1068 | __le32 status; | |
1069 | __u8 data_rate; | |
1070 | __u8 tx_priority; | |
1071 | __le16 qos_control; | |
1072 | __le32 pkt_phys_addr; | |
1073 | __le16 pkt_len; | |
d89173f2 | 1074 | __u8 dest_MAC_addr[ETH_ALEN]; |
45eb400d | 1075 | __le32 next_txd_phys_addr; |
a66098da LB |
1076 | __le32 reserved; |
1077 | __le16 rate_info; | |
1078 | __u8 peer_id; | |
1079 | __u8 tx_frag_cnt; | |
1080 | } __attribute__((packed)); | |
1081 | ||
1082 | #define MWL8K_TX_DESCS 128 | |
1083 | ||
1084 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1085 | { | |
1086 | struct mwl8k_priv *priv = hw->priv; | |
1087 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1088 | int size; | |
1089 | int i; | |
1090 | ||
45eb400d LB |
1091 | memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats)); |
1092 | txq->stats.limit = MWL8K_TX_DESCS; | |
1093 | txq->head = 0; | |
1094 | txq->tail = 0; | |
a66098da LB |
1095 | |
1096 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1097 | ||
45eb400d LB |
1098 | txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma); |
1099 | if (txq->txd == NULL) { | |
a66098da | 1100 | printk(KERN_ERR "%s: failed to alloc TX descriptors\n", |
c2c357ce | 1101 | wiphy_name(hw->wiphy)); |
a66098da LB |
1102 | return -ENOMEM; |
1103 | } | |
45eb400d | 1104 | memset(txq->txd, 0, size); |
a66098da | 1105 | |
45eb400d LB |
1106 | txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL); |
1107 | if (txq->skb == NULL) { | |
a66098da | 1108 | printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", |
c2c357ce | 1109 | wiphy_name(hw->wiphy)); |
45eb400d | 1110 | pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma); |
a66098da LB |
1111 | return -ENOMEM; |
1112 | } | |
45eb400d | 1113 | memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb)); |
a66098da LB |
1114 | |
1115 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1116 | struct mwl8k_tx_desc *tx_desc; | |
1117 | int nexti; | |
1118 | ||
45eb400d | 1119 | tx_desc = txq->txd + i; |
a66098da LB |
1120 | nexti = (i + 1) % MWL8K_TX_DESCS; |
1121 | ||
1122 | tx_desc->status = 0; | |
45eb400d LB |
1123 | tx_desc->next_txd_phys_addr = |
1124 | cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc)); | |
a66098da LB |
1125 | } |
1126 | ||
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1131 | { | |
1132 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1133 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1134 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1135 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1136 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1137 | } | |
1138 | ||
a66098da LB |
1139 | struct mwl8k_txq_info { |
1140 | u32 fw_owned; | |
1141 | u32 drv_owned; | |
1142 | u32 unused; | |
1143 | u32 len; | |
1144 | u32 head; | |
1145 | u32 tail; | |
1146 | }; | |
1147 | ||
1148 | static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, | |
c3f967d3 | 1149 | struct mwl8k_txq_info *txinfo) |
a66098da LB |
1150 | { |
1151 | int count, desc, status; | |
1152 | struct mwl8k_tx_queue *txq; | |
1153 | struct mwl8k_tx_desc *tx_desc; | |
1154 | int ndescs = 0; | |
1155 | ||
c3f967d3 LB |
1156 | memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info)); |
1157 | ||
c3f967d3 | 1158 | for (count = 0; count < MWL8K_TX_QUEUES; count++) { |
a66098da | 1159 | txq = priv->txq + count; |
45eb400d LB |
1160 | txinfo[count].len = txq->stats.len; |
1161 | txinfo[count].head = txq->head; | |
1162 | txinfo[count].tail = txq->tail; | |
a66098da | 1163 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { |
45eb400d | 1164 | tx_desc = txq->txd + desc; |
a66098da LB |
1165 | status = le32_to_cpu(tx_desc->status); |
1166 | ||
1167 | if (status & MWL8K_TXD_STATUS_FW_OWNED) | |
1168 | txinfo[count].fw_owned++; | |
1169 | else | |
1170 | txinfo[count].drv_owned++; | |
1171 | ||
1172 | if (tx_desc->pkt_len == 0) | |
1173 | txinfo[count].unused++; | |
1174 | } | |
1175 | } | |
a66098da LB |
1176 | |
1177 | return ndescs; | |
1178 | } | |
1179 | ||
618952a7 | 1180 | /* |
88de754a | 1181 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1182 | */ |
950d5b01 | 1183 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1184 | { |
a66098da | 1185 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1186 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
ce9e2e1b LB |
1187 | u32 count; |
1188 | unsigned long timeout; | |
a66098da LB |
1189 | |
1190 | might_sleep(); | |
1191 | ||
a66098da | 1192 | spin_lock_bh(&priv->tx_lock); |
88de754a LB |
1193 | count = priv->pending_tx_pkts; |
1194 | if (count) | |
1195 | priv->tx_wait = &tx_wait; | |
a66098da LB |
1196 | spin_unlock_bh(&priv->tx_lock); |
1197 | ||
1198 | if (count) { | |
c3f967d3 | 1199 | struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; |
a66098da LB |
1200 | int index; |
1201 | int newcount; | |
1202 | ||
88de754a | 1203 | timeout = wait_for_completion_timeout(&tx_wait, |
618952a7 | 1204 | msecs_to_jiffies(5000)); |
a66098da LB |
1205 | if (timeout) |
1206 | return 0; | |
1207 | ||
1208 | spin_lock_bh(&priv->tx_lock); | |
1209 | priv->tx_wait = NULL; | |
88de754a LB |
1210 | newcount = priv->pending_tx_pkts; |
1211 | mwl8k_scan_tx_ring(priv, txinfo); | |
a66098da LB |
1212 | spin_unlock_bh(&priv->tx_lock); |
1213 | ||
618952a7 | 1214 | printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n", |
950d5b01 | 1215 | __func__, __LINE__, count, newcount); |
a66098da | 1216 | |
c3f967d3 | 1217 | for (index = 0; index < MWL8K_TX_QUEUES; index++) |
c2c357ce LB |
1218 | printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u " |
1219 | "DRV:%u U:%u\n", | |
a66098da LB |
1220 | index, |
1221 | txinfo[index].len, | |
1222 | txinfo[index].head, | |
1223 | txinfo[index].tail, | |
1224 | txinfo[index].fw_owned, | |
1225 | txinfo[index].drv_owned, | |
1226 | txinfo[index].unused); | |
ce9e2e1b | 1227 | |
a66098da LB |
1228 | return -ETIMEDOUT; |
1229 | } | |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
c23b5a69 LB |
1234 | #define MWL8K_TXD_SUCCESS(status) \ |
1235 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1236 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1237 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da LB |
1238 | |
1239 | static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) | |
1240 | { | |
1241 | struct mwl8k_priv *priv = hw->priv; | |
1242 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1243 | int wake = 0; | |
1244 | ||
45eb400d | 1245 | while (txq->stats.len > 0) { |
a66098da | 1246 | int tx; |
a66098da LB |
1247 | struct mwl8k_tx_desc *tx_desc; |
1248 | unsigned long addr; | |
ce9e2e1b | 1249 | int size; |
a66098da LB |
1250 | struct sk_buff *skb; |
1251 | struct ieee80211_tx_info *info; | |
1252 | u32 status; | |
1253 | ||
45eb400d LB |
1254 | tx = txq->head; |
1255 | tx_desc = txq->txd + tx; | |
a66098da LB |
1256 | |
1257 | status = le32_to_cpu(tx_desc->status); | |
1258 | ||
1259 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1260 | if (!force) | |
1261 | break; | |
1262 | tx_desc->status &= | |
1263 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1264 | } | |
1265 | ||
45eb400d LB |
1266 | txq->head = (tx + 1) % MWL8K_TX_DESCS; |
1267 | BUG_ON(txq->stats.len == 0); | |
1268 | txq->stats.len--; | |
a66098da LB |
1269 | priv->pending_tx_pkts--; |
1270 | ||
1271 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1272 | size = le16_to_cpu(tx_desc->pkt_len); |
45eb400d LB |
1273 | skb = txq->skb[tx]; |
1274 | txq->skb[tx] = NULL; | |
a66098da LB |
1275 | |
1276 | BUG_ON(skb == NULL); | |
1277 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1278 | ||
76266b2a | 1279 | mwl8k_remove_dma_header(skb); |
a66098da LB |
1280 | |
1281 | /* Mark descriptor as unused */ | |
1282 | tx_desc->pkt_phys_addr = 0; | |
1283 | tx_desc->pkt_len = 0; | |
1284 | ||
a66098da LB |
1285 | info = IEEE80211_SKB_CB(skb); |
1286 | ieee80211_tx_info_clear_status(info); | |
ce9e2e1b | 1287 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1288 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1289 | |
1290 | ieee80211_tx_status_irqsafe(hw, skb); | |
1291 | ||
618952a7 | 1292 | wake = 1; |
a66098da LB |
1293 | } |
1294 | ||
618952a7 | 1295 | if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex)) |
a66098da LB |
1296 | ieee80211_wake_queue(hw, index); |
1297 | } | |
1298 | ||
1299 | /* must be called only when the card's transmit is completely halted */ | |
1300 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1301 | { | |
1302 | struct mwl8k_priv *priv = hw->priv; | |
1303 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1304 | ||
1305 | mwl8k_txq_reclaim(hw, index, 1); | |
1306 | ||
45eb400d LB |
1307 | kfree(txq->skb); |
1308 | txq->skb = NULL; | |
a66098da LB |
1309 | |
1310 | pci_free_consistent(priv->pdev, | |
1311 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
45eb400d LB |
1312 | txq->txd, txq->txd_dma); |
1313 | txq->txd = NULL; | |
a66098da LB |
1314 | } |
1315 | ||
1316 | static int | |
1317 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) | |
1318 | { | |
1319 | struct mwl8k_priv *priv = hw->priv; | |
1320 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1321 | struct mwl8k_vif *mwl8k_vif; |
a66098da LB |
1322 | struct ieee80211_hdr *wh; |
1323 | struct mwl8k_tx_queue *txq; | |
1324 | struct mwl8k_tx_desc *tx; | |
a66098da | 1325 | dma_addr_t dma; |
23b33906 LB |
1326 | u32 txstatus; |
1327 | u8 txdatarate; | |
1328 | u16 qos; | |
a66098da | 1329 | |
23b33906 LB |
1330 | wh = (struct ieee80211_hdr *)skb->data; |
1331 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1332 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1333 | else | |
1334 | qos = 0; | |
a66098da | 1335 | |
76266b2a | 1336 | mwl8k_add_dma_header(skb); |
23b33906 | 1337 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1338 | |
1339 | tx_info = IEEE80211_SKB_CB(skb); | |
1340 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); | |
a66098da LB |
1341 | |
1342 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1343 | u16 seqno = mwl8k_vif->seqno; | |
23b33906 | 1344 | |
a66098da LB |
1345 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
1346 | wh->seq_ctrl |= cpu_to_le16(seqno << 4); | |
1347 | mwl8k_vif->seqno = seqno++ % 4096; | |
1348 | } | |
1349 | ||
23b33906 LB |
1350 | /* Setup firmware control bit fields for each frame type. */ |
1351 | txstatus = 0; | |
1352 | txdatarate = 0; | |
1353 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1354 | ieee80211_is_ctl(wh->frame_control)) { | |
1355 | txdatarate = 0; | |
1356 | qos = mwl8k_qos_setbit_eosp(qos); | |
1357 | /* Set Queue size to unspecified */ | |
1358 | qos = mwl8k_qos_setbit_qlen(qos, 0xff); | |
1359 | } else if (ieee80211_is_data(wh->frame_control)) { | |
1360 | txdatarate = 1; | |
1361 | if (is_multicast_ether_addr(wh->addr1)) | |
1362 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1363 | ||
1364 | /* Send pkt in an aggregate if AMPDU frame. */ | |
1365 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) | |
1366 | qos = mwl8k_qos_setbit_ack(qos, | |
1367 | MWL8K_TXD_ACK_POLICY_BLOCKACK); | |
1368 | else | |
1369 | qos = mwl8k_qos_setbit_ack(qos, | |
1370 | MWL8K_TXD_ACK_POLICY_NORMAL); | |
1371 | ||
1372 | if (qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) | |
1373 | qos = mwl8k_qos_setbit_amsdu(qos); | |
1374 | } | |
a66098da LB |
1375 | |
1376 | dma = pci_map_single(priv->pdev, skb->data, | |
1377 | skb->len, PCI_DMA_TODEVICE); | |
1378 | ||
1379 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
1380 | printk(KERN_DEBUG "%s: failed to dma map skb, " | |
c2c357ce | 1381 | "dropping TX frame.\n", wiphy_name(hw->wiphy)); |
23b33906 | 1382 | dev_kfree_skb(skb); |
a66098da LB |
1383 | return NETDEV_TX_OK; |
1384 | } | |
1385 | ||
23b33906 | 1386 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1387 | |
23b33906 | 1388 | txq = priv->txq + index; |
a66098da | 1389 | |
45eb400d LB |
1390 | BUG_ON(txq->skb[txq->tail] != NULL); |
1391 | txq->skb[txq->tail] = skb; | |
a66098da | 1392 | |
45eb400d | 1393 | tx = txq->txd + txq->tail; |
23b33906 LB |
1394 | tx->data_rate = txdatarate; |
1395 | tx->tx_priority = index; | |
a66098da | 1396 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1397 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1398 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 LB |
1399 | tx->rate_info = 0; |
1400 | tx->peer_id = mwl8k_vif->peer_id; | |
a66098da | 1401 | wmb(); |
23b33906 LB |
1402 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1403 | ||
45eb400d LB |
1404 | txq->stats.count++; |
1405 | txq->stats.len++; | |
a66098da | 1406 | priv->pending_tx_pkts++; |
a66098da | 1407 | |
45eb400d LB |
1408 | txq->tail++; |
1409 | if (txq->tail == MWL8K_TX_DESCS) | |
1410 | txq->tail = 0; | |
23b33906 | 1411 | |
45eb400d | 1412 | if (txq->head == txq->tail) |
a66098da LB |
1413 | ieee80211_stop_queue(hw, index); |
1414 | ||
23b33906 | 1415 | mwl8k_tx_start(priv); |
a66098da LB |
1416 | |
1417 | spin_unlock_bh(&priv->tx_lock); | |
1418 | ||
1419 | return NETDEV_TX_OK; | |
1420 | } | |
1421 | ||
1422 | ||
618952a7 LB |
1423 | /* |
1424 | * Firmware access. | |
1425 | * | |
1426 | * We have the following requirements for issuing firmware commands: | |
1427 | * - Some commands require that the packet transmit path is idle when | |
1428 | * the command is issued. (For simplicity, we'll just quiesce the | |
1429 | * transmit path for every command.) | |
1430 | * - There are certain sequences of commands that need to be issued to | |
1431 | * the hardware sequentially, with no other intervening commands. | |
1432 | * | |
1433 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1434 | * can be taken recursively, and which is taken by both the low-level | |
1435 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1436 | * that function that require issuing of an atomic sequence of commands, | |
1437 | * and quiesces the transmit path whenever it's taken. | |
1438 | */ | |
1439 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1440 | { | |
1441 | struct mwl8k_priv *priv = hw->priv; | |
1442 | ||
1443 | if (priv->fw_mutex_owner != current) { | |
1444 | int rc; | |
1445 | ||
1446 | mutex_lock(&priv->fw_mutex); | |
1447 | ieee80211_stop_queues(hw); | |
1448 | ||
1449 | rc = mwl8k_tx_wait_empty(hw); | |
1450 | if (rc) { | |
1451 | ieee80211_wake_queues(hw); | |
1452 | mutex_unlock(&priv->fw_mutex); | |
1453 | ||
1454 | return rc; | |
1455 | } | |
1456 | ||
1457 | priv->fw_mutex_owner = current; | |
1458 | } | |
1459 | ||
1460 | priv->fw_mutex_depth++; | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1466 | { | |
1467 | struct mwl8k_priv *priv = hw->priv; | |
1468 | ||
1469 | if (!--priv->fw_mutex_depth) { | |
1470 | ieee80211_wake_queues(hw); | |
1471 | priv->fw_mutex_owner = NULL; | |
1472 | mutex_unlock(&priv->fw_mutex); | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | ||
a66098da LB |
1477 | /* |
1478 | * Command processing. | |
1479 | */ | |
1480 | ||
1481 | /* Timeout firmware commands after 2000ms */ | |
1482 | #define MWL8K_CMD_TIMEOUT_MS 2000 | |
1483 | ||
1484 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1485 | { | |
1486 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1487 | struct mwl8k_priv *priv = hw->priv; | |
1488 | void __iomem *regs = priv->regs; | |
1489 | dma_addr_t dma_addr; | |
1490 | unsigned int dma_size; | |
1491 | int rc; | |
a66098da LB |
1492 | unsigned long timeout = 0; |
1493 | u8 buf[32]; | |
1494 | ||
c2c357ce | 1495 | cmd->result = 0xffff; |
a66098da LB |
1496 | dma_size = le16_to_cpu(cmd->length); |
1497 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1498 | PCI_DMA_BIDIRECTIONAL); | |
1499 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1500 | return -ENOMEM; | |
1501 | ||
618952a7 | 1502 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1503 | if (rc) { |
1504 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1505 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1506 | return rc; |
39a1e42e | 1507 | } |
a66098da | 1508 | |
a66098da LB |
1509 | priv->hostcmd_wait = &cmd_wait; |
1510 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
1511 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
1512 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1513 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1514 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
1515 | |
1516 | timeout = wait_for_completion_timeout(&cmd_wait, | |
1517 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
1518 | ||
618952a7 LB |
1519 | priv->hostcmd_wait = NULL; |
1520 | ||
1521 | mwl8k_fw_unlock(hw); | |
1522 | ||
37055bd4 LB |
1523 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
1524 | PCI_DMA_BIDIRECTIONAL); | |
1525 | ||
a66098da | 1526 | if (!timeout) { |
a66098da | 1527 | printk(KERN_ERR "%s: Command %s timeout after %u ms\n", |
c2c357ce | 1528 | wiphy_name(hw->wiphy), |
a66098da LB |
1529 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
1530 | MWL8K_CMD_TIMEOUT_MS); | |
1531 | rc = -ETIMEDOUT; | |
1532 | } else { | |
ce9e2e1b | 1533 | rc = cmd->result ? -EINVAL : 0; |
a66098da LB |
1534 | if (rc) |
1535 | printk(KERN_ERR "%s: Command %s error 0x%x\n", | |
c2c357ce | 1536 | wiphy_name(hw->wiphy), |
a66098da | 1537 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
76c962a2 | 1538 | le16_to_cpu(cmd->result)); |
a66098da LB |
1539 | } |
1540 | ||
a66098da LB |
1541 | return rc; |
1542 | } | |
1543 | ||
1544 | /* | |
04b147b1 | 1545 | * CMD_GET_HW_SPEC (STA version). |
a66098da | 1546 | */ |
04b147b1 | 1547 | struct mwl8k_cmd_get_hw_spec_sta { |
a66098da LB |
1548 | struct mwl8k_cmd_pkt header; |
1549 | __u8 hw_rev; | |
1550 | __u8 host_interface; | |
1551 | __le16 num_mcaddrs; | |
d89173f2 | 1552 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
1553 | __le16 region_code; |
1554 | __le32 fw_rev; | |
1555 | __le32 ps_cookie; | |
1556 | __le32 caps; | |
1557 | __u8 mcs_bitmap[16]; | |
1558 | __le32 rx_queue_ptr; | |
1559 | __le32 num_tx_queues; | |
1560 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1561 | __le32 caps2; | |
1562 | __le32 num_tx_desc_per_queue; | |
45eb400d | 1563 | __le32 total_rxd; |
a66098da LB |
1564 | } __attribute__((packed)); |
1565 | ||
04b147b1 | 1566 | static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw) |
a66098da LB |
1567 | { |
1568 | struct mwl8k_priv *priv = hw->priv; | |
04b147b1 | 1569 | struct mwl8k_cmd_get_hw_spec_sta *cmd; |
a66098da LB |
1570 | int rc; |
1571 | int i; | |
1572 | ||
1573 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1574 | if (cmd == NULL) | |
1575 | return -ENOMEM; | |
1576 | ||
1577 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1578 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1579 | ||
1580 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1581 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
45eb400d | 1582 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); |
4ff6432e | 1583 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); |
a66098da | 1584 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
45eb400d | 1585 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); |
4ff6432e | 1586 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
45eb400d | 1587 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); |
a66098da LB |
1588 | |
1589 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1590 | ||
1591 | if (!rc) { | |
1592 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1593 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 1594 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 1595 | priv->hw_rev = cmd->hw_rev; |
a66098da LB |
1596 | } |
1597 | ||
1598 | kfree(cmd); | |
1599 | return rc; | |
1600 | } | |
1601 | ||
42fba21d LB |
1602 | /* |
1603 | * CMD_GET_HW_SPEC (AP version). | |
1604 | */ | |
1605 | struct mwl8k_cmd_get_hw_spec_ap { | |
1606 | struct mwl8k_cmd_pkt header; | |
1607 | __u8 hw_rev; | |
1608 | __u8 host_interface; | |
1609 | __le16 num_wcb; | |
1610 | __le16 num_mcaddrs; | |
1611 | __u8 perm_addr[ETH_ALEN]; | |
1612 | __le16 region_code; | |
1613 | __le16 num_antenna; | |
1614 | __le32 fw_rev; | |
1615 | __le32 wcbbase0; | |
1616 | __le32 rxwrptr; | |
1617 | __le32 rxrdptr; | |
1618 | __le32 ps_cookie; | |
1619 | __le32 wcbbase1; | |
1620 | __le32 wcbbase2; | |
1621 | __le32 wcbbase3; | |
1622 | } __attribute__((packed)); | |
1623 | ||
1624 | static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) | |
1625 | { | |
1626 | struct mwl8k_priv *priv = hw->priv; | |
1627 | struct mwl8k_cmd_get_hw_spec_ap *cmd; | |
1628 | int rc; | |
1629 | ||
1630 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1631 | if (cmd == NULL) | |
1632 | return -ENOMEM; | |
1633 | ||
1634 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1635 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1636 | ||
1637 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1638 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1639 | ||
1640 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1641 | ||
1642 | if (!rc) { | |
1643 | int off; | |
1644 | ||
1645 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1646 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
1647 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); | |
1648 | priv->hw_rev = cmd->hw_rev; | |
1649 | ||
1650 | off = le32_to_cpu(cmd->wcbbase0) & 0xffff; | |
1651 | iowrite32(cpu_to_le32(priv->txq[0].txd_dma), priv->sram + off); | |
1652 | ||
1653 | off = le32_to_cpu(cmd->rxwrptr) & 0xffff; | |
1654 | iowrite32(cpu_to_le32(priv->rxq[0].rxd_dma), priv->sram + off); | |
1655 | ||
1656 | off = le32_to_cpu(cmd->rxrdptr) & 0xffff; | |
1657 | iowrite32(cpu_to_le32(priv->rxq[0].rxd_dma), priv->sram + off); | |
1658 | ||
1659 | off = le32_to_cpu(cmd->wcbbase1) & 0xffff; | |
1660 | iowrite32(cpu_to_le32(priv->txq[1].txd_dma), priv->sram + off); | |
1661 | ||
1662 | off = le32_to_cpu(cmd->wcbbase2) & 0xffff; | |
1663 | iowrite32(cpu_to_le32(priv->txq[2].txd_dma), priv->sram + off); | |
1664 | ||
1665 | off = le32_to_cpu(cmd->wcbbase3) & 0xffff; | |
1666 | iowrite32(cpu_to_le32(priv->txq[3].txd_dma), priv->sram + off); | |
1667 | } | |
1668 | ||
1669 | kfree(cmd); | |
1670 | return rc; | |
1671 | } | |
1672 | ||
1673 | /* | |
1674 | * CMD_SET_HW_SPEC. | |
1675 | */ | |
1676 | struct mwl8k_cmd_set_hw_spec { | |
1677 | struct mwl8k_cmd_pkt header; | |
1678 | __u8 hw_rev; | |
1679 | __u8 host_interface; | |
1680 | __le16 num_mcaddrs; | |
1681 | __u8 perm_addr[ETH_ALEN]; | |
1682 | __le16 region_code; | |
1683 | __le32 fw_rev; | |
1684 | __le32 ps_cookie; | |
1685 | __le32 caps; | |
1686 | __le32 rx_queue_ptr; | |
1687 | __le32 num_tx_queues; | |
1688 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1689 | __le32 flags; | |
1690 | __le32 num_tx_desc_per_queue; | |
1691 | __le32 total_rxd; | |
1692 | } __attribute__((packed)); | |
1693 | ||
1694 | #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080 | |
1695 | ||
1696 | static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw) | |
1697 | { | |
1698 | struct mwl8k_priv *priv = hw->priv; | |
1699 | struct mwl8k_cmd_set_hw_spec *cmd; | |
1700 | int rc; | |
1701 | int i; | |
1702 | ||
1703 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1704 | if (cmd == NULL) | |
1705 | return -ENOMEM; | |
1706 | ||
1707 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC); | |
1708 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1709 | ||
1710 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1711 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); | |
1712 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); | |
1713 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
1714 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); | |
1715 | cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT); | |
1716 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); | |
1717 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); | |
1718 | ||
1719 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1720 | kfree(cmd); | |
1721 | ||
1722 | return rc; | |
1723 | } | |
1724 | ||
a66098da LB |
1725 | /* |
1726 | * CMD_MAC_MULTICAST_ADR. | |
1727 | */ | |
1728 | struct mwl8k_cmd_mac_multicast_adr { | |
1729 | struct mwl8k_cmd_pkt header; | |
1730 | __le16 action; | |
1731 | __le16 numaddr; | |
ce9e2e1b | 1732 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
1733 | }; |
1734 | ||
d5e30845 LB |
1735 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
1736 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
1737 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
1738 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 1739 | |
e81cd2d6 | 1740 | static struct mwl8k_cmd_pkt * |
447ced07 | 1741 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti, |
e81cd2d6 | 1742 | int mc_count, struct dev_addr_list *mclist) |
a66098da | 1743 | { |
e81cd2d6 | 1744 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1745 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
e81cd2d6 | 1746 | int size; |
e81cd2d6 | 1747 | |
447ced07 | 1748 | if (allmulti || mc_count > priv->num_mcaddrs) { |
d5e30845 LB |
1749 | allmulti = 1; |
1750 | mc_count = 0; | |
1751 | } | |
e81cd2d6 LB |
1752 | |
1753 | size = sizeof(*cmd) + mc_count * ETH_ALEN; | |
ce9e2e1b | 1754 | |
e81cd2d6 | 1755 | cmd = kzalloc(size, GFP_ATOMIC); |
a66098da | 1756 | if (cmd == NULL) |
e81cd2d6 | 1757 | return NULL; |
a66098da LB |
1758 | |
1759 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); | |
1760 | cmd->header.length = cpu_to_le16(size); | |
d5e30845 LB |
1761 | cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED | |
1762 | MWL8K_ENABLE_RX_BROADCAST); | |
1763 | ||
1764 | if (allmulti) { | |
1765 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST); | |
1766 | } else if (mc_count) { | |
1767 | int i; | |
1768 | ||
1769 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); | |
1770 | cmd->numaddr = cpu_to_le16(mc_count); | |
1771 | for (i = 0; i < mc_count && mclist; i++) { | |
1772 | if (mclist->da_addrlen != ETH_ALEN) { | |
1773 | kfree(cmd); | |
1774 | return NULL; | |
1775 | } | |
1776 | memcpy(cmd->addr[i], mclist->da_addr, ETH_ALEN); | |
1777 | mclist = mclist->next; | |
a66098da | 1778 | } |
a66098da LB |
1779 | } |
1780 | ||
e81cd2d6 | 1781 | return &cmd->header; |
a66098da LB |
1782 | } |
1783 | ||
1784 | /* | |
1785 | * CMD_802_11_GET_STAT. | |
1786 | */ | |
1787 | struct mwl8k_cmd_802_11_get_stat { | |
1788 | struct mwl8k_cmd_pkt header; | |
a66098da LB |
1789 | __le32 stats[64]; |
1790 | } __attribute__((packed)); | |
1791 | ||
1792 | #define MWL8K_STAT_ACK_FAILURE 9 | |
1793 | #define MWL8K_STAT_RTS_FAILURE 12 | |
1794 | #define MWL8K_STAT_FCS_ERROR 24 | |
1795 | #define MWL8K_STAT_RTS_SUCCESS 11 | |
1796 | ||
1797 | static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw *hw, | |
1798 | struct ieee80211_low_level_stats *stats) | |
1799 | { | |
1800 | struct mwl8k_cmd_802_11_get_stat *cmd; | |
1801 | int rc; | |
1802 | ||
1803 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1804 | if (cmd == NULL) | |
1805 | return -ENOMEM; | |
1806 | ||
1807 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); | |
1808 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
1809 | |
1810 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1811 | if (!rc) { | |
1812 | stats->dot11ACKFailureCount = | |
1813 | le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); | |
1814 | stats->dot11RTSFailureCount = | |
1815 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); | |
1816 | stats->dot11FCSErrorCount = | |
1817 | le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); | |
1818 | stats->dot11RTSSuccessCount = | |
1819 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); | |
1820 | } | |
1821 | kfree(cmd); | |
1822 | ||
1823 | return rc; | |
1824 | } | |
1825 | ||
1826 | /* | |
1827 | * CMD_802_11_RADIO_CONTROL. | |
1828 | */ | |
1829 | struct mwl8k_cmd_802_11_radio_control { | |
1830 | struct mwl8k_cmd_pkt header; | |
1831 | __le16 action; | |
1832 | __le16 control; | |
1833 | __le16 radio_on; | |
1834 | } __attribute__((packed)); | |
1835 | ||
c46563b7 LB |
1836 | static int |
1837 | mwl8k_cmd_802_11_radio_control(struct ieee80211_hw *hw, bool enable, bool force) | |
a66098da LB |
1838 | { |
1839 | struct mwl8k_priv *priv = hw->priv; | |
1840 | struct mwl8k_cmd_802_11_radio_control *cmd; | |
1841 | int rc; | |
1842 | ||
c46563b7 | 1843 | if (enable == priv->radio_on && !force) |
a66098da LB |
1844 | return 0; |
1845 | ||
a66098da LB |
1846 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
1847 | if (cmd == NULL) | |
1848 | return -ENOMEM; | |
1849 | ||
1850 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); | |
1851 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1852 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
68ce3884 | 1853 | cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1); |
a66098da LB |
1854 | cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); |
1855 | ||
1856 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1857 | kfree(cmd); | |
1858 | ||
1859 | if (!rc) | |
c46563b7 | 1860 | priv->radio_on = enable; |
a66098da LB |
1861 | |
1862 | return rc; | |
1863 | } | |
1864 | ||
c46563b7 LB |
1865 | static int mwl8k_cmd_802_11_radio_disable(struct ieee80211_hw *hw) |
1866 | { | |
1867 | return mwl8k_cmd_802_11_radio_control(hw, 0, 0); | |
1868 | } | |
1869 | ||
1870 | static int mwl8k_cmd_802_11_radio_enable(struct ieee80211_hw *hw) | |
1871 | { | |
1872 | return mwl8k_cmd_802_11_radio_control(hw, 1, 0); | |
1873 | } | |
1874 | ||
a66098da LB |
1875 | static int |
1876 | mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) | |
1877 | { | |
1878 | struct mwl8k_priv *priv; | |
1879 | ||
1880 | if (hw == NULL || hw->priv == NULL) | |
1881 | return -EINVAL; | |
1882 | priv = hw->priv; | |
1883 | ||
68ce3884 | 1884 | priv->radio_short_preamble = short_preamble; |
a66098da | 1885 | |
c46563b7 | 1886 | return mwl8k_cmd_802_11_radio_control(hw, 1, 1); |
a66098da LB |
1887 | } |
1888 | ||
1889 | /* | |
1890 | * CMD_802_11_RF_TX_POWER. | |
1891 | */ | |
1892 | #define MWL8K_TX_POWER_LEVEL_TOTAL 8 | |
1893 | ||
1894 | struct mwl8k_cmd_802_11_rf_tx_power { | |
1895 | struct mwl8k_cmd_pkt header; | |
1896 | __le16 action; | |
1897 | __le16 support_level; | |
1898 | __le16 current_level; | |
1899 | __le16 reserved; | |
1900 | __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; | |
1901 | } __attribute__((packed)); | |
1902 | ||
1903 | static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw *hw, int dBm) | |
1904 | { | |
1905 | struct mwl8k_cmd_802_11_rf_tx_power *cmd; | |
1906 | int rc; | |
1907 | ||
1908 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1909 | if (cmd == NULL) | |
1910 | return -ENOMEM; | |
1911 | ||
1912 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); | |
1913 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1914 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1915 | cmd->support_level = cpu_to_le16(dBm); | |
1916 | ||
1917 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1918 | kfree(cmd); | |
1919 | ||
1920 | return rc; | |
1921 | } | |
1922 | ||
08b06347 LB |
1923 | /* |
1924 | * CMD_RF_ANTENNA. | |
1925 | */ | |
1926 | struct mwl8k_cmd_rf_antenna { | |
1927 | struct mwl8k_cmd_pkt header; | |
1928 | __le16 antenna; | |
1929 | __le16 mode; | |
1930 | } __attribute__((packed)); | |
1931 | ||
1932 | #define MWL8K_RF_ANTENNA_RX 1 | |
1933 | #define MWL8K_RF_ANTENNA_TX 2 | |
1934 | ||
1935 | static int | |
1936 | mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask) | |
1937 | { | |
1938 | struct mwl8k_cmd_rf_antenna *cmd; | |
1939 | int rc; | |
1940 | ||
1941 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1942 | if (cmd == NULL) | |
1943 | return -ENOMEM; | |
1944 | ||
1945 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA); | |
1946 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1947 | cmd->antenna = cpu_to_le16(antenna); | |
1948 | cmd->mode = cpu_to_le16(mask); | |
1949 | ||
1950 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1951 | kfree(cmd); | |
1952 | ||
1953 | return rc; | |
1954 | } | |
1955 | ||
a66098da LB |
1956 | /* |
1957 | * CMD_SET_PRE_SCAN. | |
1958 | */ | |
1959 | struct mwl8k_cmd_set_pre_scan { | |
1960 | struct mwl8k_cmd_pkt header; | |
1961 | } __attribute__((packed)); | |
1962 | ||
1963 | static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) | |
1964 | { | |
1965 | struct mwl8k_cmd_set_pre_scan *cmd; | |
1966 | int rc; | |
1967 | ||
1968 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1969 | if (cmd == NULL) | |
1970 | return -ENOMEM; | |
1971 | ||
1972 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); | |
1973 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1974 | ||
1975 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1976 | kfree(cmd); | |
1977 | ||
1978 | return rc; | |
1979 | } | |
1980 | ||
1981 | /* | |
1982 | * CMD_SET_POST_SCAN. | |
1983 | */ | |
1984 | struct mwl8k_cmd_set_post_scan { | |
1985 | struct mwl8k_cmd_pkt header; | |
1986 | __le32 isibss; | |
d89173f2 | 1987 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
1988 | } __attribute__((packed)); |
1989 | ||
1990 | static int | |
ce9e2e1b | 1991 | mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac) |
a66098da LB |
1992 | { |
1993 | struct mwl8k_cmd_set_post_scan *cmd; | |
1994 | int rc; | |
1995 | ||
1996 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1997 | if (cmd == NULL) | |
1998 | return -ENOMEM; | |
1999 | ||
2000 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); | |
2001 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2002 | cmd->isibss = 0; | |
d89173f2 | 2003 | memcpy(cmd->bssid, mac, ETH_ALEN); |
a66098da LB |
2004 | |
2005 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2006 | kfree(cmd); | |
2007 | ||
2008 | return rc; | |
2009 | } | |
2010 | ||
2011 | /* | |
2012 | * CMD_SET_RF_CHANNEL. | |
2013 | */ | |
2014 | struct mwl8k_cmd_set_rf_channel { | |
2015 | struct mwl8k_cmd_pkt header; | |
2016 | __le16 action; | |
2017 | __u8 current_channel; | |
2018 | __le32 channel_flags; | |
2019 | } __attribute__((packed)); | |
2020 | ||
2021 | static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, | |
2022 | struct ieee80211_channel *channel) | |
2023 | { | |
2024 | struct mwl8k_cmd_set_rf_channel *cmd; | |
2025 | int rc; | |
2026 | ||
2027 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2028 | if (cmd == NULL) | |
2029 | return -ENOMEM; | |
2030 | ||
2031 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); | |
2032 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2033 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2034 | cmd->current_channel = channel->hw_value; | |
2035 | if (channel->band == IEEE80211_BAND_2GHZ) | |
2036 | cmd->channel_flags = cpu_to_le32(0x00000081); | |
2037 | else | |
2038 | cmd->channel_flags = cpu_to_le32(0x00000000); | |
2039 | ||
2040 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2041 | kfree(cmd); | |
2042 | ||
2043 | return rc; | |
2044 | } | |
2045 | ||
2046 | /* | |
2047 | * CMD_SET_SLOT. | |
2048 | */ | |
2049 | struct mwl8k_cmd_set_slot { | |
2050 | struct mwl8k_cmd_pkt header; | |
2051 | __le16 action; | |
2052 | __u8 short_slot; | |
2053 | } __attribute__((packed)); | |
2054 | ||
5539bb51 | 2055 | static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time) |
a66098da LB |
2056 | { |
2057 | struct mwl8k_cmd_set_slot *cmd; | |
2058 | int rc; | |
2059 | ||
2060 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2061 | if (cmd == NULL) | |
2062 | return -ENOMEM; | |
2063 | ||
2064 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); | |
2065 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2066 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
5539bb51 | 2067 | cmd->short_slot = short_slot_time; |
a66098da LB |
2068 | |
2069 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2070 | kfree(cmd); | |
2071 | ||
2072 | return rc; | |
2073 | } | |
2074 | ||
2075 | /* | |
2076 | * CMD_MIMO_CONFIG. | |
2077 | */ | |
2078 | struct mwl8k_cmd_mimo_config { | |
2079 | struct mwl8k_cmd_pkt header; | |
2080 | __le32 action; | |
2081 | __u8 rx_antenna_map; | |
2082 | __u8 tx_antenna_map; | |
2083 | } __attribute__((packed)); | |
2084 | ||
2085 | static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) | |
2086 | { | |
2087 | struct mwl8k_cmd_mimo_config *cmd; | |
2088 | int rc; | |
2089 | ||
2090 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2091 | if (cmd == NULL) | |
2092 | return -ENOMEM; | |
2093 | ||
2094 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); | |
2095 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2096 | cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); | |
2097 | cmd->rx_antenna_map = rx; | |
2098 | cmd->tx_antenna_map = tx; | |
2099 | ||
2100 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2101 | kfree(cmd); | |
2102 | ||
2103 | return rc; | |
2104 | } | |
2105 | ||
2106 | /* | |
2107 | * CMD_ENABLE_SNIFFER. | |
2108 | */ | |
2109 | struct mwl8k_cmd_enable_sniffer { | |
2110 | struct mwl8k_cmd_pkt header; | |
2111 | __le32 action; | |
2112 | } __attribute__((packed)); | |
2113 | ||
2114 | static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) | |
2115 | { | |
2116 | struct mwl8k_cmd_enable_sniffer *cmd; | |
2117 | int rc; | |
2118 | ||
2119 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2120 | if (cmd == NULL) | |
2121 | return -ENOMEM; | |
2122 | ||
2123 | cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); | |
2124 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 2125 | cmd->action = cpu_to_le32(!!enable); |
a66098da LB |
2126 | |
2127 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2128 | kfree(cmd); | |
2129 | ||
2130 | return rc; | |
2131 | } | |
2132 | ||
32060e1b LB |
2133 | /* |
2134 | * CMD_SET_MAC_ADDR. | |
2135 | */ | |
2136 | struct mwl8k_cmd_set_mac_addr { | |
2137 | struct mwl8k_cmd_pkt header; | |
259a8e7d LB |
2138 | union { |
2139 | struct { | |
2140 | __le16 mac_type; | |
2141 | __u8 mac_addr[ETH_ALEN]; | |
2142 | } mbss; | |
2143 | __u8 mac_addr[ETH_ALEN]; | |
2144 | }; | |
32060e1b LB |
2145 | } __attribute__((packed)); |
2146 | ||
2147 | static int mwl8k_set_mac_addr(struct ieee80211_hw *hw, u8 *mac) | |
2148 | { | |
259a8e7d | 2149 | struct mwl8k_priv *priv = hw->priv; |
32060e1b LB |
2150 | struct mwl8k_cmd_set_mac_addr *cmd; |
2151 | int rc; | |
2152 | ||
2153 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2154 | if (cmd == NULL) | |
2155 | return -ENOMEM; | |
2156 | ||
2157 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR); | |
2158 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
259a8e7d LB |
2159 | if (priv->ap_fw) { |
2160 | cmd->mbss.mac_type = 0; | |
2161 | memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN); | |
2162 | } else { | |
2163 | memcpy(cmd->mac_addr, mac, ETH_ALEN); | |
2164 | } | |
32060e1b LB |
2165 | |
2166 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2167 | kfree(cmd); | |
2168 | ||
2169 | return rc; | |
2170 | } | |
2171 | ||
2172 | ||
a66098da | 2173 | /* |
ce9e2e1b | 2174 | * CMD_SET_RATEADAPT_MODE. |
a66098da LB |
2175 | */ |
2176 | struct mwl8k_cmd_set_rate_adapt_mode { | |
2177 | struct mwl8k_cmd_pkt header; | |
2178 | __le16 action; | |
2179 | __le16 mode; | |
2180 | } __attribute__((packed)); | |
2181 | ||
2182 | static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode) | |
2183 | { | |
2184 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
2185 | int rc; | |
2186 | ||
2187 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2188 | if (cmd == NULL) | |
2189 | return -ENOMEM; | |
2190 | ||
2191 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
2192 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2193 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2194 | cmd->mode = cpu_to_le16(mode); | |
2195 | ||
2196 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2197 | kfree(cmd); | |
2198 | ||
2199 | return rc; | |
2200 | } | |
2201 | ||
2202 | /* | |
2203 | * CMD_SET_WMM_MODE. | |
2204 | */ | |
2205 | struct mwl8k_cmd_set_wmm { | |
2206 | struct mwl8k_cmd_pkt header; | |
2207 | __le16 action; | |
2208 | } __attribute__((packed)); | |
2209 | ||
2210 | static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable) | |
2211 | { | |
2212 | struct mwl8k_priv *priv = hw->priv; | |
2213 | struct mwl8k_cmd_set_wmm *cmd; | |
2214 | int rc; | |
2215 | ||
2216 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2217 | if (cmd == NULL) | |
2218 | return -ENOMEM; | |
2219 | ||
2220 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); | |
2221 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
0439b1f5 | 2222 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
2223 | |
2224 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2225 | kfree(cmd); | |
2226 | ||
2227 | if (!rc) | |
0439b1f5 | 2228 | priv->wmm_enabled = enable; |
a66098da LB |
2229 | |
2230 | return rc; | |
2231 | } | |
2232 | ||
2233 | /* | |
2234 | * CMD_SET_RTS_THRESHOLD. | |
2235 | */ | |
2236 | struct mwl8k_cmd_rts_threshold { | |
2237 | struct mwl8k_cmd_pkt header; | |
2238 | __le16 action; | |
2239 | __le16 threshold; | |
2240 | } __attribute__((packed)); | |
2241 | ||
2242 | static int mwl8k_rts_threshold(struct ieee80211_hw *hw, | |
733d3067 | 2243 | u16 action, u16 threshold) |
a66098da LB |
2244 | { |
2245 | struct mwl8k_cmd_rts_threshold *cmd; | |
2246 | int rc; | |
2247 | ||
2248 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2249 | if (cmd == NULL) | |
2250 | return -ENOMEM; | |
2251 | ||
2252 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); | |
2253 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2254 | cmd->action = cpu_to_le16(action); | |
733d3067 | 2255 | cmd->threshold = cpu_to_le16(threshold); |
a66098da LB |
2256 | |
2257 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2258 | kfree(cmd); | |
2259 | ||
2260 | return rc; | |
2261 | } | |
2262 | ||
2263 | /* | |
2264 | * CMD_SET_EDCA_PARAMS. | |
2265 | */ | |
2266 | struct mwl8k_cmd_set_edca_params { | |
2267 | struct mwl8k_cmd_pkt header; | |
2268 | ||
2269 | /* See MWL8K_SET_EDCA_XXX below */ | |
2270 | __le16 action; | |
2271 | ||
2272 | /* TX opportunity in units of 32 us */ | |
2273 | __le16 txop; | |
2274 | ||
2275 | /* Log exponent of max contention period: 0...15*/ | |
2276 | __u8 log_cw_max; | |
2277 | ||
2278 | /* Log exponent of min contention period: 0...15 */ | |
2279 | __u8 log_cw_min; | |
2280 | ||
2281 | /* Adaptive interframe spacing in units of 32us */ | |
2282 | __u8 aifs; | |
2283 | ||
2284 | /* TX queue to configure */ | |
2285 | __u8 txq; | |
2286 | } __attribute__((packed)); | |
2287 | ||
a66098da LB |
2288 | #define MWL8K_SET_EDCA_CW 0x01 |
2289 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
2290 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
2291 | ||
2292 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
2293 | MWL8K_SET_EDCA_TXOP | \ | |
2294 | MWL8K_SET_EDCA_AIFS) | |
2295 | ||
2296 | static int | |
2297 | mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, | |
2298 | __u16 cw_min, __u16 cw_max, | |
2299 | __u8 aifs, __u16 txop) | |
2300 | { | |
2301 | struct mwl8k_cmd_set_edca_params *cmd; | |
a66098da LB |
2302 | int rc; |
2303 | ||
2304 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2305 | if (cmd == NULL) | |
2306 | return -ENOMEM; | |
2307 | ||
22995b24 LB |
2308 | /* |
2309 | * Queues 0 (BE) and 1 (BK) are swapped in hardware for | |
2310 | * this call. | |
2311 | */ | |
2312 | qnum ^= !(qnum >> 1); | |
2313 | ||
a66098da LB |
2314 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
2315 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2316 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
2317 | cmd->txop = cpu_to_le16(txop); | |
ce9e2e1b LB |
2318 | cmd->log_cw_max = (u8)ilog2(cw_max + 1); |
2319 | cmd->log_cw_min = (u8)ilog2(cw_min + 1); | |
a66098da LB |
2320 | cmd->aifs = aifs; |
2321 | cmd->txq = qnum; | |
2322 | ||
2323 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2324 | kfree(cmd); | |
2325 | ||
2326 | return rc; | |
2327 | } | |
2328 | ||
2329 | /* | |
2330 | * CMD_FINALIZE_JOIN. | |
2331 | */ | |
2332 | ||
2333 | /* FJ beacon buffer size is compiled into the firmware. */ | |
2334 | #define MWL8K_FJ_BEACON_MAXLEN 128 | |
2335 | ||
2336 | struct mwl8k_cmd_finalize_join { | |
2337 | struct mwl8k_cmd_pkt header; | |
2338 | __le32 sleep_interval; /* Number of beacon periods to sleep */ | |
2339 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
2340 | } __attribute__((packed)); | |
2341 | ||
2342 | static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, | |
2343 | __u16 framelen, __u16 dtim) | |
2344 | { | |
2345 | struct mwl8k_cmd_finalize_join *cmd; | |
2346 | struct ieee80211_mgmt *payload = frame; | |
2347 | u16 hdrlen; | |
2348 | u32 payload_len; | |
2349 | int rc; | |
2350 | ||
2351 | if (frame == NULL) | |
2352 | return -EINVAL; | |
2353 | ||
2354 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2355 | if (cmd == NULL) | |
2356 | return -ENOMEM; | |
2357 | ||
2358 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); | |
2359 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 2360 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
a66098da LB |
2361 | |
2362 | hdrlen = ieee80211_hdrlen(payload->frame_control); | |
2363 | ||
2364 | payload_len = framelen > hdrlen ? framelen - hdrlen : 0; | |
2365 | ||
2366 | /* XXX TBD Might just have to abort and return an error */ | |
2367 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2368 | printk(KERN_ERR "%s(): WARNING: Incomplete beacon " | |
c2c357ce LB |
2369 | "sent to firmware. Sz=%u MAX=%u\n", __func__, |
2370 | payload_len, MWL8K_FJ_BEACON_MAXLEN); | |
a66098da | 2371 | |
ce9e2e1b LB |
2372 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) |
2373 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
a66098da LB |
2374 | |
2375 | if (payload && payload_len) | |
2376 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
2377 | ||
2378 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2379 | kfree(cmd); | |
2380 | return rc; | |
2381 | } | |
2382 | ||
2383 | /* | |
2384 | * CMD_UPDATE_STADB. | |
2385 | */ | |
2386 | struct mwl8k_cmd_update_sta_db { | |
2387 | struct mwl8k_cmd_pkt header; | |
2388 | ||
2389 | /* See STADB_ACTION_TYPE */ | |
2390 | __le32 action; | |
2391 | ||
2392 | /* Peer MAC address */ | |
d89173f2 | 2393 | __u8 peer_addr[ETH_ALEN]; |
a66098da LB |
2394 | |
2395 | __le32 reserved; | |
2396 | ||
2397 | /* Peer info - valid during add/update. */ | |
2398 | struct peer_capability_info peer_info; | |
2399 | } __attribute__((packed)); | |
2400 | ||
2401 | static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, | |
2402 | struct ieee80211_vif *vif, __u32 action) | |
2403 | { | |
2404 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2405 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2406 | struct mwl8k_cmd_update_sta_db *cmd; | |
2407 | struct peer_capability_info *peer_info; | |
2408 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
a66098da LB |
2409 | int rc; |
2410 | __u8 count, *rates; | |
2411 | ||
2412 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2413 | if (cmd == NULL) | |
2414 | return -ENOMEM; | |
2415 | ||
2416 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
2417 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2418 | ||
2419 | cmd->action = cpu_to_le32(action); | |
2420 | peer_info = &cmd->peer_info; | |
d89173f2 | 2421 | memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN); |
a66098da LB |
2422 | |
2423 | switch (action) { | |
2424 | case MWL8K_STA_DB_ADD_ENTRY: | |
2425 | case MWL8K_STA_DB_MODIFY_ENTRY: | |
2426 | /* Build peer_info block */ | |
2427 | peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
2428 | peer_info->basic_caps = cpu_to_le16(info->assoc_capability); | |
2429 | peer_info->interop = 1; | |
2430 | peer_info->amsdu_enabled = 0; | |
2431 | ||
2432 | rates = peer_info->legacy_rates; | |
ce9e2e1b | 2433 | for (count = 0; count < mv_vif->legacy_nrates; count++) |
a66098da LB |
2434 | rates[count] = bitrates[count].hw_value; |
2435 | ||
2436 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2437 | if (rc == 0) | |
2438 | mv_vif->peer_id = peer_info->station_id; | |
2439 | ||
2440 | break; | |
2441 | ||
2442 | case MWL8K_STA_DB_DEL_ENTRY: | |
2443 | case MWL8K_STA_DB_FLUSH: | |
2444 | default: | |
2445 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2446 | if (rc == 0) | |
2447 | mv_vif->peer_id = 0; | |
2448 | break; | |
2449 | } | |
2450 | kfree(cmd); | |
2451 | ||
2452 | return rc; | |
2453 | } | |
2454 | ||
2455 | /* | |
2456 | * CMD_SET_AID. | |
2457 | */ | |
a66098da LB |
2458 | #define MWL8K_RATE_INDEX_MAX_ARRAY 14 |
2459 | ||
2460 | #define MWL8K_FRAME_PROT_DISABLED 0x00 | |
2461 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2462 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2463 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da LB |
2464 | |
2465 | struct mwl8k_cmd_update_set_aid { | |
2466 | struct mwl8k_cmd_pkt header; | |
2467 | __le16 aid; | |
2468 | ||
2469 | /* AP's MAC address (BSSID) */ | |
d89173f2 | 2470 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
2471 | __le16 protection_mode; |
2472 | __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2473 | } __attribute__((packed)); | |
2474 | ||
2475 | static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, | |
2476 | struct ieee80211_vif *vif) | |
2477 | { | |
2478 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2479 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2480 | struct mwl8k_cmd_update_set_aid *cmd; | |
2481 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2482 | int count; | |
2483 | u16 prot_mode; | |
2484 | int rc; | |
2485 | ||
2486 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2487 | if (cmd == NULL) | |
2488 | return -ENOMEM; | |
2489 | ||
2490 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); | |
2491 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2492 | cmd->aid = cpu_to_le16(info->aid); | |
2493 | ||
d89173f2 | 2494 | memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); |
a66098da | 2495 | |
a66098da LB |
2496 | if (info->use_cts_prot) { |
2497 | prot_mode = MWL8K_FRAME_PROT_11G; | |
2498 | } else { | |
9ed6bcce | 2499 | switch (info->ht_operation_mode & |
a66098da LB |
2500 | IEEE80211_HT_OP_MODE_PROTECTION) { |
2501 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2502 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2503 | break; | |
2504 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2505 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2506 | break; | |
2507 | default: | |
2508 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2509 | break; | |
2510 | } | |
2511 | } | |
a66098da LB |
2512 | cmd->protection_mode = cpu_to_le16(prot_mode); |
2513 | ||
2514 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2515 | cmd->supp_rates[count] = bitrates[count].hw_value; | |
2516 | ||
2517 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2518 | kfree(cmd); | |
2519 | ||
2520 | return rc; | |
2521 | } | |
2522 | ||
2523 | /* | |
2524 | * CMD_SET_RATE. | |
2525 | */ | |
2526 | struct mwl8k_cmd_update_rateset { | |
2527 | struct mwl8k_cmd_pkt header; | |
2528 | __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2529 | ||
2530 | /* Bitmap for supported MCS codes. */ | |
2531 | __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2532 | __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2533 | } __attribute__((packed)); | |
2534 | ||
2535 | static int mwl8k_update_rateset(struct ieee80211_hw *hw, | |
2536 | struct ieee80211_vif *vif) | |
2537 | { | |
2538 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2539 | struct mwl8k_cmd_update_rateset *cmd; | |
2540 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2541 | int count; | |
2542 | int rc; | |
2543 | ||
2544 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2545 | if (cmd == NULL) | |
2546 | return -ENOMEM; | |
2547 | ||
2548 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); | |
2549 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2550 | ||
2551 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2552 | cmd->legacy_rates[count] = bitrates[count].hw_value; | |
2553 | ||
2554 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2555 | kfree(cmd); | |
2556 | ||
2557 | return rc; | |
2558 | } | |
2559 | ||
2560 | /* | |
2561 | * CMD_USE_FIXED_RATE. | |
2562 | */ | |
2563 | #define MWL8K_RATE_TABLE_SIZE 8 | |
2564 | #define MWL8K_UCAST_RATE 0 | |
a66098da LB |
2565 | #define MWL8K_USE_AUTO_RATE 0x0002 |
2566 | ||
2567 | struct mwl8k_rate_entry { | |
2568 | /* Set to 1 if HT rate, 0 if legacy. */ | |
2569 | __le32 is_ht_rate; | |
2570 | ||
2571 | /* Set to 1 to use retry_count field. */ | |
2572 | __le32 enable_retry; | |
2573 | ||
2574 | /* Specified legacy rate or MCS. */ | |
2575 | __le32 rate; | |
2576 | ||
2577 | /* Number of allowed retries. */ | |
2578 | __le32 retry_count; | |
2579 | } __attribute__((packed)); | |
2580 | ||
2581 | struct mwl8k_rate_table { | |
2582 | /* 1 to allow specified rate and below */ | |
2583 | __le32 allow_rate_drop; | |
2584 | __le32 num_rates; | |
2585 | struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; | |
2586 | } __attribute__((packed)); | |
2587 | ||
2588 | struct mwl8k_cmd_use_fixed_rate { | |
2589 | struct mwl8k_cmd_pkt header; | |
2590 | __le32 action; | |
2591 | struct mwl8k_rate_table rate_table; | |
2592 | ||
2593 | /* Unicast, Broadcast or Multicast */ | |
2594 | __le32 rate_type; | |
2595 | __le32 reserved1; | |
2596 | __le32 reserved2; | |
2597 | } __attribute__((packed)); | |
2598 | ||
2599 | static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, | |
2600 | u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) | |
2601 | { | |
2602 | struct mwl8k_cmd_use_fixed_rate *cmd; | |
2603 | int count; | |
2604 | int rc; | |
2605 | ||
2606 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2607 | if (cmd == NULL) | |
2608 | return -ENOMEM; | |
2609 | ||
2610 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
2611 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2612 | ||
2613 | cmd->action = cpu_to_le32(action); | |
2614 | cmd->rate_type = cpu_to_le32(rate_type); | |
2615 | ||
2616 | if (rate_table != NULL) { | |
c2c357ce LB |
2617 | /* |
2618 | * Copy over each field manually so that endian | |
2619 | * conversion can be done. | |
2620 | */ | |
a66098da LB |
2621 | cmd->rate_table.allow_rate_drop = |
2622 | cpu_to_le32(rate_table->allow_rate_drop); | |
2623 | cmd->rate_table.num_rates = | |
2624 | cpu_to_le32(rate_table->num_rates); | |
2625 | ||
2626 | for (count = 0; count < rate_table->num_rates; count++) { | |
2627 | struct mwl8k_rate_entry *dst = | |
2628 | &cmd->rate_table.rate_entry[count]; | |
2629 | struct mwl8k_rate_entry *src = | |
2630 | &rate_table->rate_entry[count]; | |
2631 | ||
2632 | dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); | |
2633 | dst->enable_retry = cpu_to_le32(src->enable_retry); | |
2634 | dst->rate = cpu_to_le32(src->rate); | |
2635 | dst->retry_count = cpu_to_le32(src->retry_count); | |
2636 | } | |
2637 | } | |
2638 | ||
2639 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2640 | kfree(cmd); | |
2641 | ||
2642 | return rc; | |
2643 | } | |
2644 | ||
2645 | ||
2646 | /* | |
2647 | * Interrupt handling. | |
2648 | */ | |
2649 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
2650 | { | |
2651 | struct ieee80211_hw *hw = dev_id; | |
2652 | struct mwl8k_priv *priv = hw->priv; | |
2653 | u32 status; | |
2654 | ||
2655 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2656 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2657 | ||
a66098da LB |
2658 | if (!status) |
2659 | return IRQ_NONE; | |
2660 | ||
2661 | if (status & MWL8K_A2H_INT_TX_DONE) | |
2662 | tasklet_schedule(&priv->tx_reclaim_task); | |
2663 | ||
2664 | if (status & MWL8K_A2H_INT_RX_READY) { | |
2665 | while (rxq_process(hw, 0, 1)) | |
2666 | rxq_refill(hw, 0, 1); | |
2667 | } | |
2668 | ||
2669 | if (status & MWL8K_A2H_INT_OPC_DONE) { | |
618952a7 | 2670 | if (priv->hostcmd_wait != NULL) |
a66098da | 2671 | complete(priv->hostcmd_wait); |
a66098da LB |
2672 | } |
2673 | ||
2674 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 2675 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 2676 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 2677 | mwl8k_tx_start(priv); |
a66098da LB |
2678 | } |
2679 | ||
2680 | return IRQ_HANDLED; | |
2681 | } | |
2682 | ||
2683 | ||
2684 | /* | |
2685 | * Core driver operations. | |
2686 | */ | |
2687 | static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
2688 | { | |
2689 | struct mwl8k_priv *priv = hw->priv; | |
2690 | int index = skb_get_queue_mapping(skb); | |
2691 | int rc; | |
2692 | ||
2693 | if (priv->current_channel == NULL) { | |
2694 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
c2c357ce | 2695 | "disabled\n", wiphy_name(hw->wiphy)); |
a66098da LB |
2696 | dev_kfree_skb(skb); |
2697 | return NETDEV_TX_OK; | |
2698 | } | |
2699 | ||
2700 | rc = mwl8k_txq_xmit(hw, index, skb); | |
2701 | ||
2702 | return rc; | |
2703 | } | |
2704 | ||
a66098da LB |
2705 | static int mwl8k_start(struct ieee80211_hw *hw) |
2706 | { | |
a66098da LB |
2707 | struct mwl8k_priv *priv = hw->priv; |
2708 | int rc; | |
2709 | ||
a66098da LB |
2710 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, |
2711 | IRQF_SHARED, MWL8K_NAME, hw); | |
2712 | if (rc) { | |
2713 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2714 | wiphy_name(hw->wiphy)); |
2ec610cb | 2715 | return -EIO; |
a66098da LB |
2716 | } |
2717 | ||
2ec610cb LB |
2718 | /* Enable tx reclaim tasklet */ |
2719 | tasklet_enable(&priv->tx_reclaim_task); | |
2720 | ||
a66098da | 2721 | /* Enable interrupts */ |
c23b5a69 | 2722 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 2723 | |
2ec610cb LB |
2724 | rc = mwl8k_fw_lock(hw); |
2725 | if (!rc) { | |
2726 | rc = mwl8k_cmd_802_11_radio_enable(hw); | |
a66098da | 2727 | |
5e4cf166 LB |
2728 | if (!priv->ap_fw) { |
2729 | if (!rc) | |
2730 | rc = mwl8k_enable_sniffer(hw, 0); | |
a66098da | 2731 | |
5e4cf166 LB |
2732 | if (!rc) |
2733 | rc = mwl8k_cmd_set_pre_scan(hw); | |
2734 | ||
2735 | if (!rc) | |
2736 | rc = mwl8k_cmd_set_post_scan(hw, | |
2737 | "\x00\x00\x00\x00\x00\x00"); | |
2738 | } | |
2ec610cb LB |
2739 | |
2740 | if (!rc) | |
2741 | rc = mwl8k_cmd_setrateadaptmode(hw, 0); | |
a66098da | 2742 | |
2ec610cb LB |
2743 | if (!rc) |
2744 | rc = mwl8k_set_wmm(hw, 0); | |
a66098da | 2745 | |
2ec610cb LB |
2746 | mwl8k_fw_unlock(hw); |
2747 | } | |
2748 | ||
2749 | if (rc) { | |
2750 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
2751 | free_irq(priv->pdev->irq, hw); | |
2752 | tasklet_disable(&priv->tx_reclaim_task); | |
2753 | } | |
a66098da LB |
2754 | |
2755 | return rc; | |
2756 | } | |
2757 | ||
a66098da LB |
2758 | static void mwl8k_stop(struct ieee80211_hw *hw) |
2759 | { | |
a66098da LB |
2760 | struct mwl8k_priv *priv = hw->priv; |
2761 | int i; | |
2762 | ||
d3cea0b8 | 2763 | mwl8k_cmd_802_11_radio_disable(hw); |
a66098da LB |
2764 | |
2765 | ieee80211_stop_queues(hw); | |
2766 | ||
a66098da | 2767 | /* Disable interrupts */ |
a66098da | 2768 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2769 | free_irq(priv->pdev->irq, hw); |
2770 | ||
2771 | /* Stop finalize join worker */ | |
2772 | cancel_work_sync(&priv->finalize_join_worker); | |
2773 | if (priv->beacon_skb != NULL) | |
2774 | dev_kfree_skb(priv->beacon_skb); | |
2775 | ||
2776 | /* Stop tx reclaim tasklet */ | |
2777 | tasklet_disable(&priv->tx_reclaim_task); | |
2778 | ||
a66098da LB |
2779 | /* Return all skbs to mac80211 */ |
2780 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2781 | mwl8k_txq_reclaim(hw, i, 1); | |
2782 | } | |
2783 | ||
2784 | static int mwl8k_add_interface(struct ieee80211_hw *hw, | |
2785 | struct ieee80211_if_init_conf *conf) | |
2786 | { | |
2787 | struct mwl8k_priv *priv = hw->priv; | |
2788 | struct mwl8k_vif *mwl8k_vif; | |
2789 | ||
2790 | /* | |
2791 | * We only support one active interface at a time. | |
2792 | */ | |
2793 | if (priv->vif != NULL) | |
2794 | return -EBUSY; | |
2795 | ||
2796 | /* | |
2797 | * We only support managed interfaces for now. | |
2798 | */ | |
240e86ef | 2799 | if (conf->type != NL80211_IFTYPE_STATION) |
a66098da LB |
2800 | return -EINVAL; |
2801 | ||
a43c49a8 LB |
2802 | /* |
2803 | * Reject interface creation if sniffer mode is active, as | |
2804 | * STA operation is mutually exclusive with hardware sniffer | |
2805 | * mode. | |
2806 | */ | |
2807 | if (priv->sniffer_enabled) { | |
2808 | printk(KERN_INFO "%s: unable to create STA " | |
2809 | "interface due to sniffer mode being enabled\n", | |
2810 | wiphy_name(hw->wiphy)); | |
2811 | return -EINVAL; | |
2812 | } | |
2813 | ||
a66098da LB |
2814 | /* Clean out driver private area */ |
2815 | mwl8k_vif = MWL8K_VIF(conf->vif); | |
2816 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); | |
2817 | ||
32060e1b LB |
2818 | /* Set and save the mac address */ |
2819 | mwl8k_set_mac_addr(hw, conf->mac_addr); | |
d89173f2 | 2820 | memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN); |
a66098da LB |
2821 | |
2822 | /* Back pointer to parent config block */ | |
2823 | mwl8k_vif->priv = priv; | |
2824 | ||
2825 | /* Setup initial PHY parameters */ | |
ce9e2e1b | 2826 | memcpy(mwl8k_vif->legacy_rates, |
a66098da LB |
2827 | priv->rates, sizeof(mwl8k_vif->legacy_rates)); |
2828 | mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); | |
2829 | ||
2830 | /* Set Initial sequence number to zero */ | |
2831 | mwl8k_vif->seqno = 0; | |
2832 | ||
2833 | priv->vif = conf->vif; | |
2834 | priv->current_channel = NULL; | |
2835 | ||
2836 | return 0; | |
2837 | } | |
2838 | ||
2839 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
2840 | struct ieee80211_if_init_conf *conf) | |
2841 | { | |
2842 | struct mwl8k_priv *priv = hw->priv; | |
2843 | ||
2844 | if (priv->vif == NULL) | |
2845 | return; | |
2846 | ||
32060e1b LB |
2847 | mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); |
2848 | ||
a66098da LB |
2849 | priv->vif = NULL; |
2850 | } | |
2851 | ||
ee03a932 | 2852 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 2853 | { |
a66098da LB |
2854 | struct ieee80211_conf *conf = &hw->conf; |
2855 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 2856 | int rc; |
a66098da | 2857 | |
7595d67a LB |
2858 | if (conf->flags & IEEE80211_CONF_IDLE) { |
2859 | mwl8k_cmd_802_11_radio_disable(hw); | |
2860 | priv->current_channel = NULL; | |
ee03a932 | 2861 | return 0; |
7595d67a LB |
2862 | } |
2863 | ||
ee03a932 LB |
2864 | rc = mwl8k_fw_lock(hw); |
2865 | if (rc) | |
2866 | return rc; | |
a66098da | 2867 | |
ee03a932 LB |
2868 | rc = mwl8k_cmd_802_11_radio_enable(hw); |
2869 | if (rc) | |
2870 | goto out; | |
a66098da | 2871 | |
ee03a932 LB |
2872 | rc = mwl8k_cmd_set_rf_channel(hw, conf->channel); |
2873 | if (rc) | |
2874 | goto out; | |
2875 | ||
2876 | priv->current_channel = conf->channel; | |
a66098da LB |
2877 | |
2878 | if (conf->power_level > 18) | |
2879 | conf->power_level = 18; | |
ee03a932 LB |
2880 | rc = mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level); |
2881 | if (rc) | |
2882 | goto out; | |
a66098da | 2883 | |
08b06347 LB |
2884 | if (priv->ap_fw) { |
2885 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x7); | |
2886 | if (!rc) | |
2887 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7); | |
2888 | } else { | |
2889 | rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7); | |
2890 | } | |
a66098da | 2891 | |
ee03a932 LB |
2892 | out: |
2893 | mwl8k_fw_unlock(hw); | |
a66098da | 2894 | |
ee03a932 | 2895 | return rc; |
a66098da LB |
2896 | } |
2897 | ||
3a980d0a LB |
2898 | static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, |
2899 | struct ieee80211_vif *vif, | |
2900 | struct ieee80211_bss_conf *info, | |
2901 | u32 changed) | |
a66098da | 2902 | { |
a66098da LB |
2903 | struct mwl8k_priv *priv = hw->priv; |
2904 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3a980d0a LB |
2905 | int rc; |
2906 | ||
2907 | if (changed & BSS_CHANGED_BSSID) | |
2908 | memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); | |
2909 | ||
2910 | if ((changed & BSS_CHANGED_ASSOC) == 0) | |
2911 | return; | |
a66098da | 2912 | |
a66098da LB |
2913 | priv->capture_beacon = false; |
2914 | ||
3a980d0a | 2915 | rc = mwl8k_fw_lock(hw); |
942457d6 | 2916 | if (rc) |
3a980d0a LB |
2917 | return; |
2918 | ||
a66098da LB |
2919 | if (info->assoc) { |
2920 | memcpy(&mwl8k_vif->bss_info, info, | |
2921 | sizeof(struct ieee80211_bss_conf)); | |
2922 | ||
2923 | /* Install rates */ | |
3a980d0a LB |
2924 | rc = mwl8k_update_rateset(hw, vif); |
2925 | if (rc) | |
2926 | goto out; | |
a66098da LB |
2927 | |
2928 | /* Turn on rate adaptation */ | |
3a980d0a LB |
2929 | rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, |
2930 | MWL8K_UCAST_RATE, NULL); | |
2931 | if (rc) | |
2932 | goto out; | |
a66098da LB |
2933 | |
2934 | /* Set radio preamble */ | |
3a980d0a LB |
2935 | rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble); |
2936 | if (rc) | |
2937 | goto out; | |
a66098da LB |
2938 | |
2939 | /* Set slot time */ | |
3a980d0a LB |
2940 | rc = mwl8k_cmd_set_slot(hw, info->use_short_slot); |
2941 | if (rc) | |
2942 | goto out; | |
a66098da LB |
2943 | |
2944 | /* Update peer rate info */ | |
3a980d0a LB |
2945 | rc = mwl8k_cmd_update_sta_db(hw, vif, |
2946 | MWL8K_STA_DB_MODIFY_ENTRY); | |
2947 | if (rc) | |
2948 | goto out; | |
a66098da LB |
2949 | |
2950 | /* Set AID */ | |
3a980d0a LB |
2951 | rc = mwl8k_cmd_set_aid(hw, vif); |
2952 | if (rc) | |
2953 | goto out; | |
a66098da LB |
2954 | |
2955 | /* | |
2956 | * Finalize the join. Tell rx handler to process | |
2957 | * next beacon from our BSSID. | |
2958 | */ | |
d89173f2 | 2959 | memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN); |
a66098da LB |
2960 | priv->capture_beacon = true; |
2961 | } else { | |
3a980d0a | 2962 | rc = mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY); |
a66098da LB |
2963 | memset(&mwl8k_vif->bss_info, 0, |
2964 | sizeof(struct ieee80211_bss_conf)); | |
d89173f2 | 2965 | memset(mwl8k_vif->bssid, 0, ETH_ALEN); |
a66098da LB |
2966 | } |
2967 | ||
3a980d0a LB |
2968 | out: |
2969 | mwl8k_fw_unlock(hw); | |
a66098da LB |
2970 | } |
2971 | ||
e81cd2d6 LB |
2972 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
2973 | int mc_count, struct dev_addr_list *mclist) | |
2974 | { | |
2975 | struct mwl8k_cmd_pkt *cmd; | |
2976 | ||
447ced07 LB |
2977 | /* |
2978 | * Synthesize and return a command packet that programs the | |
2979 | * hardware multicast address filter. At this point we don't | |
2980 | * know whether FIF_ALLMULTI is being requested, but if it is, | |
2981 | * we'll end up throwing this packet away and creating a new | |
2982 | * one in mwl8k_configure_filter(). | |
2983 | */ | |
2984 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist); | |
e81cd2d6 LB |
2985 | |
2986 | return (unsigned long)cmd; | |
2987 | } | |
2988 | ||
a43c49a8 LB |
2989 | static int |
2990 | mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, | |
2991 | unsigned int changed_flags, | |
2992 | unsigned int *total_flags) | |
2993 | { | |
2994 | struct mwl8k_priv *priv = hw->priv; | |
2995 | ||
2996 | /* | |
2997 | * Hardware sniffer mode is mutually exclusive with STA | |
2998 | * operation, so refuse to enable sniffer mode if a STA | |
2999 | * interface is active. | |
3000 | */ | |
3001 | if (priv->vif != NULL) { | |
3002 | if (net_ratelimit()) | |
3003 | printk(KERN_INFO "%s: not enabling sniffer " | |
3004 | "mode because STA interface is active\n", | |
3005 | wiphy_name(hw->wiphy)); | |
3006 | return 0; | |
3007 | } | |
3008 | ||
3009 | if (!priv->sniffer_enabled) { | |
3010 | if (mwl8k_enable_sniffer(hw, 1)) | |
3011 | return 0; | |
3012 | priv->sniffer_enabled = true; | |
3013 | } | |
3014 | ||
3015 | *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI | | |
3016 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL | | |
3017 | FIF_OTHER_BSS; | |
3018 | ||
3019 | return 1; | |
3020 | } | |
3021 | ||
e6935ea1 LB |
3022 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
3023 | unsigned int changed_flags, | |
3024 | unsigned int *total_flags, | |
3025 | u64 multicast) | |
3026 | { | |
3027 | struct mwl8k_priv *priv = hw->priv; | |
a43c49a8 LB |
3028 | struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast; |
3029 | ||
c0adae2c LB |
3030 | /* |
3031 | * AP firmware doesn't allow fine-grained control over | |
3032 | * the receive filter. | |
3033 | */ | |
3034 | if (priv->ap_fw) { | |
3035 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; | |
3036 | kfree(cmd); | |
3037 | return; | |
3038 | } | |
3039 | ||
a43c49a8 LB |
3040 | /* |
3041 | * Enable hardware sniffer mode if FIF_CONTROL or | |
3042 | * FIF_OTHER_BSS is requested. | |
3043 | */ | |
3044 | if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) && | |
3045 | mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) { | |
3046 | kfree(cmd); | |
3047 | return; | |
3048 | } | |
a66098da | 3049 | |
e6935ea1 | 3050 | /* Clear unsupported feature flags */ |
447ced07 | 3051 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; |
a66098da | 3052 | |
e6935ea1 LB |
3053 | if (mwl8k_fw_lock(hw)) |
3054 | return; | |
a66098da | 3055 | |
a43c49a8 LB |
3056 | if (priv->sniffer_enabled) { |
3057 | mwl8k_enable_sniffer(hw, 0); | |
3058 | priv->sniffer_enabled = false; | |
3059 | } | |
3060 | ||
e6935ea1 | 3061 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
77165d88 LB |
3062 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { |
3063 | /* | |
3064 | * Disable the BSS filter. | |
3065 | */ | |
e6935ea1 | 3066 | mwl8k_cmd_set_pre_scan(hw); |
77165d88 | 3067 | } else { |
a94cc97e LB |
3068 | u8 *bssid; |
3069 | ||
77165d88 LB |
3070 | /* |
3071 | * Enable the BSS filter. | |
3072 | * | |
3073 | * If there is an active STA interface, use that | |
3074 | * interface's BSSID, otherwise use a dummy one | |
3075 | * (where the OUI part needs to be nonzero for | |
3076 | * the BSSID to be accepted by POST_SCAN). | |
3077 | */ | |
3078 | bssid = "\x01\x00\x00\x00\x00\x00"; | |
a94cc97e LB |
3079 | if (priv->vif != NULL) |
3080 | bssid = MWL8K_VIF(priv->vif)->bssid; | |
3081 | ||
e6935ea1 | 3082 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
3083 | } |
3084 | } | |
3085 | ||
447ced07 LB |
3086 | /* |
3087 | * If FIF_ALLMULTI is being requested, throw away the command | |
3088 | * packet that ->prepare_multicast() built and replace it with | |
3089 | * a command packet that enables reception of all multicast | |
3090 | * packets. | |
3091 | */ | |
3092 | if (*total_flags & FIF_ALLMULTI) { | |
3093 | kfree(cmd); | |
3094 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL); | |
3095 | } | |
3096 | ||
3097 | if (cmd != NULL) { | |
3098 | mwl8k_post_cmd(hw, cmd); | |
3099 | kfree(cmd); | |
e6935ea1 | 3100 | } |
a66098da | 3101 | |
e6935ea1 | 3102 | mwl8k_fw_unlock(hw); |
a66098da LB |
3103 | } |
3104 | ||
a66098da LB |
3105 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
3106 | { | |
733d3067 | 3107 | return mwl8k_rts_threshold(hw, MWL8K_CMD_SET, value); |
a66098da LB |
3108 | } |
3109 | ||
a66098da LB |
3110 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
3111 | const struct ieee80211_tx_queue_params *params) | |
3112 | { | |
3e4f542c | 3113 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 3114 | int rc; |
a66098da | 3115 | |
3e4f542c LB |
3116 | rc = mwl8k_fw_lock(hw); |
3117 | if (!rc) { | |
3118 | if (!priv->wmm_enabled) | |
3119 | rc = mwl8k_set_wmm(hw, 1); | |
a66098da | 3120 | |
3e4f542c LB |
3121 | if (!rc) |
3122 | rc = mwl8k_set_edca_params(hw, queue, | |
3123 | params->cw_min, | |
3124 | params->cw_max, | |
3125 | params->aifs, | |
3126 | params->txop); | |
3127 | ||
3128 | mwl8k_fw_unlock(hw); | |
a66098da | 3129 | } |
3e4f542c | 3130 | |
a66098da LB |
3131 | return rc; |
3132 | } | |
3133 | ||
3134 | static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, | |
3135 | struct ieee80211_tx_queue_stats *stats) | |
3136 | { | |
3137 | struct mwl8k_priv *priv = hw->priv; | |
3138 | struct mwl8k_tx_queue *txq; | |
3139 | int index; | |
3140 | ||
3141 | spin_lock_bh(&priv->tx_lock); | |
3142 | for (index = 0; index < MWL8K_TX_QUEUES; index++) { | |
3143 | txq = priv->txq + index; | |
45eb400d | 3144 | memcpy(&stats[index], &txq->stats, |
a66098da LB |
3145 | sizeof(struct ieee80211_tx_queue_stats)); |
3146 | } | |
3147 | spin_unlock_bh(&priv->tx_lock); | |
a66098da | 3148 | |
954ef509 | 3149 | return 0; |
a66098da LB |
3150 | } |
3151 | ||
3152 | static int mwl8k_get_stats(struct ieee80211_hw *hw, | |
3153 | struct ieee80211_low_level_stats *stats) | |
3154 | { | |
954ef509 | 3155 | return mwl8k_cmd_802_11_get_stat(hw, stats); |
a66098da LB |
3156 | } |
3157 | ||
3158 | static const struct ieee80211_ops mwl8k_ops = { | |
3159 | .tx = mwl8k_tx, | |
3160 | .start = mwl8k_start, | |
3161 | .stop = mwl8k_stop, | |
3162 | .add_interface = mwl8k_add_interface, | |
3163 | .remove_interface = mwl8k_remove_interface, | |
3164 | .config = mwl8k_config, | |
a66098da | 3165 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 3166 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da LB |
3167 | .configure_filter = mwl8k_configure_filter, |
3168 | .set_rts_threshold = mwl8k_set_rts_threshold, | |
3169 | .conf_tx = mwl8k_conf_tx, | |
3170 | .get_tx_stats = mwl8k_get_tx_stats, | |
3171 | .get_stats = mwl8k_get_stats, | |
3172 | }; | |
3173 | ||
3174 | static void mwl8k_tx_reclaim_handler(unsigned long data) | |
3175 | { | |
3176 | int i; | |
3177 | struct ieee80211_hw *hw = (struct ieee80211_hw *) data; | |
3178 | struct mwl8k_priv *priv = hw->priv; | |
3179 | ||
3180 | spin_lock_bh(&priv->tx_lock); | |
3181 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3182 | mwl8k_txq_reclaim(hw, i, 0); | |
3183 | ||
88de754a | 3184 | if (priv->tx_wait != NULL && !priv->pending_tx_pkts) { |
ce9e2e1b LB |
3185 | complete(priv->tx_wait); |
3186 | priv->tx_wait = NULL; | |
a66098da LB |
3187 | } |
3188 | spin_unlock_bh(&priv->tx_lock); | |
3189 | } | |
3190 | ||
3191 | static void mwl8k_finalize_join_worker(struct work_struct *work) | |
3192 | { | |
3193 | struct mwl8k_priv *priv = | |
3194 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
3195 | struct sk_buff *skb = priv->beacon_skb; | |
ce9e2e1b | 3196 | u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; |
a66098da LB |
3197 | |
3198 | mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); | |
3199 | dev_kfree_skb(skb); | |
3200 | ||
3201 | priv->beacon_skb = NULL; | |
3202 | } | |
3203 | ||
45a390dd | 3204 | static struct mwl8k_device_info di_8687 = { |
a74b295e LB |
3205 | .part_name = "88w8687", |
3206 | .helper_image = "mwl8k/helper_8687.fw", | |
3207 | .fw_image = "mwl8k/fmimage_8687.fw", | |
54bc3a0d | 3208 | .rxd_ops = &rxd_8687_ops, |
547810e3 | 3209 | .modes = BIT(NL80211_IFTYPE_STATION), |
45a390dd LB |
3210 | }; |
3211 | ||
3212 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { | |
3213 | { | |
3214 | PCI_VDEVICE(MARVELL, 0x2a2b), | |
3215 | .driver_data = (unsigned long)&di_8687, | |
3216 | }, { | |
3217 | PCI_VDEVICE(MARVELL, 0x2a30), | |
3218 | .driver_data = (unsigned long)&di_8687, | |
3219 | }, { | |
3220 | }, | |
3221 | }; | |
3222 | MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table); | |
3223 | ||
a66098da LB |
3224 | static int __devinit mwl8k_probe(struct pci_dev *pdev, |
3225 | const struct pci_device_id *id) | |
3226 | { | |
2aa7b01f | 3227 | static int printed_version = 0; |
a66098da LB |
3228 | struct ieee80211_hw *hw; |
3229 | struct mwl8k_priv *priv; | |
a66098da LB |
3230 | int rc; |
3231 | int i; | |
2aa7b01f LB |
3232 | |
3233 | if (!printed_version) { | |
3234 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
3235 | printed_version = 1; | |
3236 | } | |
a66098da LB |
3237 | |
3238 | rc = pci_enable_device(pdev); | |
3239 | if (rc) { | |
3240 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
3241 | MWL8K_NAME); | |
3242 | return rc; | |
3243 | } | |
3244 | ||
3245 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
3246 | if (rc) { | |
3247 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
3248 | MWL8K_NAME); | |
3249 | return rc; | |
3250 | } | |
3251 | ||
3252 | pci_set_master(pdev); | |
3253 | ||
3254 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
3255 | if (hw == NULL) { | |
3256 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
3257 | rc = -ENOMEM; | |
3258 | goto err_free_reg; | |
3259 | } | |
3260 | ||
3261 | priv = hw->priv; | |
3262 | priv->hw = hw; | |
3263 | priv->pdev = pdev; | |
45a390dd | 3264 | priv->device_info = (void *)id->driver_data; |
54bc3a0d | 3265 | priv->rxd_ops = priv->device_info->rxd_ops; |
a43c49a8 | 3266 | priv->sniffer_enabled = false; |
0439b1f5 | 3267 | priv->wmm_enabled = false; |
a66098da | 3268 | priv->pending_tx_pkts = 0; |
a66098da | 3269 | |
a66098da LB |
3270 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3271 | pci_set_drvdata(pdev, hw); | |
3272 | ||
5b9482dd LB |
3273 | priv->sram = pci_iomap(pdev, 0, 0x10000); |
3274 | if (priv->sram == NULL) { | |
3275 | printk(KERN_ERR "%s: Cannot map device SRAM\n", | |
c2c357ce | 3276 | wiphy_name(hw->wiphy)); |
a66098da LB |
3277 | goto err_iounmap; |
3278 | } | |
3279 | ||
5b9482dd LB |
3280 | /* |
3281 | * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. | |
3282 | * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. | |
3283 | */ | |
3284 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
3285 | if (priv->regs == NULL) { | |
3286 | priv->regs = pci_iomap(pdev, 2, 0x10000); | |
3287 | if (priv->regs == NULL) { | |
3288 | printk(KERN_ERR "%s: Cannot map device registers\n", | |
3289 | wiphy_name(hw->wiphy)); | |
3290 | goto err_iounmap; | |
3291 | } | |
3292 | } | |
3293 | ||
a66098da LB |
3294 | memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); |
3295 | priv->band.band = IEEE80211_BAND_2GHZ; | |
3296 | priv->band.channels = priv->channels; | |
3297 | priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); | |
3298 | priv->band.bitrates = priv->rates; | |
3299 | priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); | |
3300 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
3301 | ||
3302 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); | |
3303 | memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); | |
3304 | ||
3305 | /* | |
3306 | * Extra headroom is the size of the required DMA header | |
3307 | * minus the size of the smallest 802.11 frame (CTS frame). | |
3308 | */ | |
3309 | hw->extra_tx_headroom = | |
3310 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
3311 | ||
3312 | hw->channel_change_time = 10; | |
3313 | ||
3314 | hw->queues = MWL8K_TX_QUEUES; | |
3315 | ||
547810e3 | 3316 | hw->wiphy->interface_modes = priv->device_info->modes; |
a66098da LB |
3317 | |
3318 | /* Set rssi and noise values to dBm */ | |
ce9e2e1b | 3319 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; |
a66098da LB |
3320 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
3321 | priv->vif = NULL; | |
3322 | ||
3323 | /* Set default radio state and preamble */ | |
c46563b7 | 3324 | priv->radio_on = 0; |
68ce3884 | 3325 | priv->radio_short_preamble = 0; |
a66098da LB |
3326 | |
3327 | /* Finalize join worker */ | |
3328 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
3329 | ||
3330 | /* TX reclaim tasklet */ | |
3331 | tasklet_init(&priv->tx_reclaim_task, | |
3332 | mwl8k_tx_reclaim_handler, (unsigned long)hw); | |
3333 | tasklet_disable(&priv->tx_reclaim_task); | |
3334 | ||
a66098da LB |
3335 | /* Power management cookie */ |
3336 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
3337 | if (priv->cookie == NULL) | |
3338 | goto err_iounmap; | |
3339 | ||
3340 | rc = mwl8k_rxq_init(hw, 0); | |
3341 | if (rc) | |
3342 | goto err_iounmap; | |
3343 | rxq_refill(hw, 0, INT_MAX); | |
3344 | ||
618952a7 LB |
3345 | mutex_init(&priv->fw_mutex); |
3346 | priv->fw_mutex_owner = NULL; | |
3347 | priv->fw_mutex_depth = 0; | |
618952a7 LB |
3348 | priv->hostcmd_wait = NULL; |
3349 | ||
a66098da LB |
3350 | spin_lock_init(&priv->tx_lock); |
3351 | ||
88de754a LB |
3352 | priv->tx_wait = NULL; |
3353 | ||
a66098da LB |
3354 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { |
3355 | rc = mwl8k_txq_init(hw, i); | |
3356 | if (rc) | |
3357 | goto err_free_queues; | |
3358 | } | |
3359 | ||
3360 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 3361 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3362 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
3363 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); | |
3364 | ||
3365 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, | |
3366 | IRQF_SHARED, MWL8K_NAME, hw); | |
3367 | if (rc) { | |
3368 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 3369 | wiphy_name(hw->wiphy)); |
a66098da LB |
3370 | goto err_free_queues; |
3371 | } | |
3372 | ||
3373 | /* Reset firmware and hardware */ | |
3374 | mwl8k_hw_reset(priv); | |
3375 | ||
3376 | /* Ask userland hotplug daemon for the device firmware */ | |
45a390dd | 3377 | rc = mwl8k_request_firmware(priv); |
a66098da | 3378 | if (rc) { |
c2c357ce LB |
3379 | printk(KERN_ERR "%s: Firmware files not found\n", |
3380 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3381 | goto err_free_irq; |
3382 | } | |
3383 | ||
3384 | /* Load firmware into hardware */ | |
c2c357ce | 3385 | rc = mwl8k_load_firmware(hw); |
a66098da | 3386 | if (rc) { |
c2c357ce LB |
3387 | printk(KERN_ERR "%s: Cannot start firmware\n", |
3388 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3389 | goto err_stop_firmware; |
3390 | } | |
3391 | ||
3392 | /* Reclaim memory once firmware is successfully loaded */ | |
3393 | mwl8k_release_firmware(priv); | |
3394 | ||
3395 | /* | |
3396 | * Temporarily enable interrupts. Initial firmware host | |
3397 | * commands use interrupts and avoids polling. Disable | |
3398 | * interrupts when done. | |
3399 | */ | |
c23b5a69 | 3400 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3401 | |
3402 | /* Get config data, mac addrs etc */ | |
42fba21d LB |
3403 | if (priv->ap_fw) { |
3404 | rc = mwl8k_cmd_get_hw_spec_ap(hw); | |
3405 | if (!rc) | |
3406 | rc = mwl8k_cmd_set_hw_spec(hw); | |
3407 | } else { | |
3408 | rc = mwl8k_cmd_get_hw_spec_sta(hw); | |
3409 | } | |
a66098da | 3410 | if (rc) { |
c2c357ce LB |
3411 | printk(KERN_ERR "%s: Cannot initialise firmware\n", |
3412 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3413 | goto err_stop_firmware; |
3414 | } | |
3415 | ||
3416 | /* Turn radio off */ | |
c46563b7 | 3417 | rc = mwl8k_cmd_802_11_radio_disable(hw); |
a66098da | 3418 | if (rc) { |
c2c357ce | 3419 | printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy)); |
a66098da LB |
3420 | goto err_stop_firmware; |
3421 | } | |
3422 | ||
32060e1b LB |
3423 | /* Clear MAC address */ |
3424 | rc = mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); | |
3425 | if (rc) { | |
3426 | printk(KERN_ERR "%s: Cannot clear MAC address\n", | |
3427 | wiphy_name(hw->wiphy)); | |
3428 | goto err_stop_firmware; | |
3429 | } | |
3430 | ||
a66098da | 3431 | /* Disable interrupts */ |
a66098da | 3432 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3433 | free_irq(priv->pdev->irq, hw); |
3434 | ||
3435 | rc = ieee80211_register_hw(hw); | |
3436 | if (rc) { | |
c2c357ce LB |
3437 | printk(KERN_ERR "%s: Cannot register device\n", |
3438 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3439 | goto err_stop_firmware; |
3440 | } | |
3441 | ||
eae74e65 | 3442 | printk(KERN_INFO "%s: %s v%d, %pM, %s firmware %u.%u.%u.%u\n", |
a74b295e | 3443 | wiphy_name(hw->wiphy), priv->device_info->part_name, |
45a390dd | 3444 | priv->hw_rev, hw->wiphy->perm_addr, |
eae74e65 | 3445 | priv->ap_fw ? "AP" : "STA", |
2aa7b01f LB |
3446 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, |
3447 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
3448 | |
3449 | return 0; | |
3450 | ||
3451 | err_stop_firmware: | |
3452 | mwl8k_hw_reset(priv); | |
3453 | mwl8k_release_firmware(priv); | |
3454 | ||
3455 | err_free_irq: | |
a66098da | 3456 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3457 | free_irq(priv->pdev->irq, hw); |
3458 | ||
3459 | err_free_queues: | |
3460 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3461 | mwl8k_txq_deinit(hw, i); | |
3462 | mwl8k_rxq_deinit(hw, 0); | |
3463 | ||
3464 | err_iounmap: | |
3465 | if (priv->cookie != NULL) | |
3466 | pci_free_consistent(priv->pdev, 4, | |
3467 | priv->cookie, priv->cookie_dma); | |
3468 | ||
3469 | if (priv->regs != NULL) | |
3470 | pci_iounmap(pdev, priv->regs); | |
3471 | ||
5b9482dd LB |
3472 | if (priv->sram != NULL) |
3473 | pci_iounmap(pdev, priv->sram); | |
3474 | ||
a66098da LB |
3475 | pci_set_drvdata(pdev, NULL); |
3476 | ieee80211_free_hw(hw); | |
3477 | ||
3478 | err_free_reg: | |
3479 | pci_release_regions(pdev); | |
3480 | pci_disable_device(pdev); | |
3481 | ||
3482 | return rc; | |
3483 | } | |
3484 | ||
230f7af0 | 3485 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
3486 | { |
3487 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
3488 | } | |
3489 | ||
230f7af0 | 3490 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
3491 | { |
3492 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
3493 | struct mwl8k_priv *priv; | |
3494 | int i; | |
3495 | ||
3496 | if (hw == NULL) | |
3497 | return; | |
3498 | priv = hw->priv; | |
3499 | ||
3500 | ieee80211_stop_queues(hw); | |
3501 | ||
60aa569f LB |
3502 | ieee80211_unregister_hw(hw); |
3503 | ||
a66098da LB |
3504 | /* Remove tx reclaim tasklet */ |
3505 | tasklet_kill(&priv->tx_reclaim_task); | |
3506 | ||
a66098da LB |
3507 | /* Stop hardware */ |
3508 | mwl8k_hw_reset(priv); | |
3509 | ||
3510 | /* Return all skbs to mac80211 */ | |
3511 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3512 | mwl8k_txq_reclaim(hw, i, 1); | |
3513 | ||
a66098da LB |
3514 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
3515 | mwl8k_txq_deinit(hw, i); | |
3516 | ||
3517 | mwl8k_rxq_deinit(hw, 0); | |
3518 | ||
c2c357ce | 3519 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da LB |
3520 | |
3521 | pci_iounmap(pdev, priv->regs); | |
5b9482dd | 3522 | pci_iounmap(pdev, priv->sram); |
a66098da LB |
3523 | pci_set_drvdata(pdev, NULL); |
3524 | ieee80211_free_hw(hw); | |
3525 | pci_release_regions(pdev); | |
3526 | pci_disable_device(pdev); | |
3527 | } | |
3528 | ||
3529 | static struct pci_driver mwl8k_driver = { | |
3530 | .name = MWL8K_NAME, | |
45a390dd | 3531 | .id_table = mwl8k_pci_id_table, |
a66098da LB |
3532 | .probe = mwl8k_probe, |
3533 | .remove = __devexit_p(mwl8k_remove), | |
3534 | .shutdown = __devexit_p(mwl8k_shutdown), | |
3535 | }; | |
3536 | ||
3537 | static int __init mwl8k_init(void) | |
3538 | { | |
3539 | return pci_register_driver(&mwl8k_driver); | |
3540 | } | |
3541 | ||
3542 | static void __exit mwl8k_exit(void) | |
3543 | { | |
3544 | pci_unregister_driver(&mwl8k_driver); | |
3545 | } | |
3546 | ||
3547 | module_init(mwl8k_init); | |
3548 | module_exit(mwl8k_exit); | |
c2c357ce LB |
3549 | |
3550 | MODULE_DESCRIPTION(MWL8K_DESC); | |
3551 | MODULE_VERSION(MWL8K_VERSION); | |
3552 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
3553 | MODULE_LICENSE("GPL"); |