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 | ||
45a390dd | 83 | struct mwl8k_device_info { |
a74b295e LB |
84 | char *part_name; |
85 | char *helper_image; | |
86 | char *fw_image; | |
45a390dd LB |
87 | }; |
88 | ||
a66098da | 89 | struct mwl8k_rx_queue { |
45eb400d | 90 | int rxd_count; |
a66098da LB |
91 | |
92 | /* hw receives here */ | |
45eb400d | 93 | int head; |
a66098da LB |
94 | |
95 | /* refill descs here */ | |
45eb400d | 96 | int tail; |
a66098da | 97 | |
45eb400d LB |
98 | struct mwl8k_rx_desc *rxd; |
99 | dma_addr_t rxd_dma; | |
788838eb LB |
100 | struct { |
101 | struct sk_buff *skb; | |
102 | DECLARE_PCI_UNMAP_ADDR(dma) | |
103 | } *buf; | |
a66098da LB |
104 | }; |
105 | ||
a66098da LB |
106 | struct mwl8k_tx_queue { |
107 | /* hw transmits here */ | |
45eb400d | 108 | int head; |
a66098da LB |
109 | |
110 | /* sw appends here */ | |
45eb400d | 111 | int tail; |
a66098da | 112 | |
45eb400d LB |
113 | struct ieee80211_tx_queue_stats stats; |
114 | struct mwl8k_tx_desc *txd; | |
115 | dma_addr_t txd_dma; | |
116 | struct sk_buff **skb; | |
a66098da LB |
117 | }; |
118 | ||
119 | /* Pointers to the firmware data and meta information about it. */ | |
120 | struct mwl8k_firmware { | |
a66098da LB |
121 | /* Boot helper code */ |
122 | struct firmware *helper; | |
a74b295e LB |
123 | |
124 | /* Microcode */ | |
125 | struct firmware *ucode; | |
a66098da LB |
126 | }; |
127 | ||
128 | struct mwl8k_priv { | |
5b9482dd | 129 | void __iomem *sram; |
a66098da LB |
130 | void __iomem *regs; |
131 | struct ieee80211_hw *hw; | |
132 | ||
133 | struct pci_dev *pdev; | |
a66098da | 134 | |
45a390dd | 135 | struct mwl8k_device_info *device_info; |
eae74e65 | 136 | bool ap_fw; |
45a390dd | 137 | |
a66098da LB |
138 | /* firmware files and meta data */ |
139 | struct mwl8k_firmware fw; | |
a66098da | 140 | |
618952a7 LB |
141 | /* firmware access */ |
142 | struct mutex fw_mutex; | |
143 | struct task_struct *fw_mutex_owner; | |
144 | int fw_mutex_depth; | |
618952a7 LB |
145 | struct completion *hostcmd_wait; |
146 | ||
a66098da LB |
147 | /* lock held over TX and TX reap */ |
148 | spinlock_t tx_lock; | |
a66098da | 149 | |
88de754a LB |
150 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
151 | struct completion *tx_wait; | |
152 | ||
a66098da | 153 | struct ieee80211_vif *vif; |
a66098da LB |
154 | |
155 | struct ieee80211_channel *current_channel; | |
156 | ||
157 | /* power management status cookie from firmware */ | |
158 | u32 *cookie; | |
159 | dma_addr_t cookie_dma; | |
160 | ||
161 | u16 num_mcaddrs; | |
a66098da | 162 | u8 hw_rev; |
2aa7b01f | 163 | u32 fw_rev; |
a66098da LB |
164 | |
165 | /* | |
166 | * Running count of TX packets in flight, to avoid | |
167 | * iterating over the transmit rings each time. | |
168 | */ | |
169 | int pending_tx_pkts; | |
170 | ||
171 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
172 | struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; | |
173 | ||
174 | /* PHY parameters */ | |
175 | struct ieee80211_supported_band band; | |
176 | struct ieee80211_channel channels[14]; | |
5dfd3e2c | 177 | struct ieee80211_rate rates[13]; |
a66098da | 178 | |
c46563b7 | 179 | bool radio_on; |
68ce3884 | 180 | bool radio_short_preamble; |
a43c49a8 | 181 | bool sniffer_enabled; |
0439b1f5 | 182 | bool wmm_enabled; |
a66098da | 183 | |
a66098da LB |
184 | /* XXX need to convert this to handle multiple interfaces */ |
185 | bool capture_beacon; | |
d89173f2 | 186 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
187 | struct sk_buff *beacon_skb; |
188 | ||
189 | /* | |
190 | * This FJ worker has to be global as it is scheduled from the | |
191 | * RX handler. At this point we don't know which interface it | |
192 | * belongs to until the list of bssids waiting to complete join | |
193 | * is checked. | |
194 | */ | |
195 | struct work_struct finalize_join_worker; | |
196 | ||
197 | /* Tasklet to reclaim TX descriptors and buffers after tx */ | |
198 | struct tasklet_struct tx_reclaim_task; | |
a66098da LB |
199 | }; |
200 | ||
201 | /* Per interface specific private data */ | |
202 | struct mwl8k_vif { | |
a66098da LB |
203 | /* backpointer to parent config block */ |
204 | struct mwl8k_priv *priv; | |
205 | ||
206 | /* BSS config of AP or IBSS from mac80211*/ | |
207 | struct ieee80211_bss_conf bss_info; | |
208 | ||
209 | /* BSSID of AP or IBSS */ | |
d89173f2 LB |
210 | u8 bssid[ETH_ALEN]; |
211 | u8 mac_addr[ETH_ALEN]; | |
a66098da LB |
212 | |
213 | /* | |
214 | * Subset of supported legacy rates. | |
215 | * Intersection of AP and STA supported rates. | |
216 | */ | |
5dfd3e2c | 217 | struct ieee80211_rate legacy_rates[13]; |
a66098da LB |
218 | |
219 | /* number of supported legacy rates */ | |
220 | u8 legacy_nrates; | |
221 | ||
a66098da LB |
222 | /* Index into station database.Returned by update_sta_db call */ |
223 | u8 peer_id; | |
224 | ||
225 | /* Non AMPDU sequence number assigned by driver */ | |
226 | u16 seqno; | |
a66098da LB |
227 | }; |
228 | ||
a94cc97e | 229 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
a66098da LB |
230 | |
231 | static const struct ieee80211_channel mwl8k_channels[] = { | |
232 | { .center_freq = 2412, .hw_value = 1, }, | |
233 | { .center_freq = 2417, .hw_value = 2, }, | |
234 | { .center_freq = 2422, .hw_value = 3, }, | |
235 | { .center_freq = 2427, .hw_value = 4, }, | |
236 | { .center_freq = 2432, .hw_value = 5, }, | |
237 | { .center_freq = 2437, .hw_value = 6, }, | |
238 | { .center_freq = 2442, .hw_value = 7, }, | |
239 | { .center_freq = 2447, .hw_value = 8, }, | |
240 | { .center_freq = 2452, .hw_value = 9, }, | |
241 | { .center_freq = 2457, .hw_value = 10, }, | |
242 | { .center_freq = 2462, .hw_value = 11, }, | |
243 | }; | |
244 | ||
245 | static const struct ieee80211_rate mwl8k_rates[] = { | |
246 | { .bitrate = 10, .hw_value = 2, }, | |
247 | { .bitrate = 20, .hw_value = 4, }, | |
248 | { .bitrate = 55, .hw_value = 11, }, | |
5dfd3e2c LB |
249 | { .bitrate = 110, .hw_value = 22, }, |
250 | { .bitrate = 220, .hw_value = 44, }, | |
a66098da LB |
251 | { .bitrate = 60, .hw_value = 12, }, |
252 | { .bitrate = 90, .hw_value = 18, }, | |
a66098da LB |
253 | { .bitrate = 120, .hw_value = 24, }, |
254 | { .bitrate = 180, .hw_value = 36, }, | |
255 | { .bitrate = 240, .hw_value = 48, }, | |
256 | { .bitrate = 360, .hw_value = 72, }, | |
257 | { .bitrate = 480, .hw_value = 96, }, | |
258 | { .bitrate = 540, .hw_value = 108, }, | |
259 | }; | |
260 | ||
a66098da LB |
261 | /* Set or get info from Firmware */ |
262 | #define MWL8K_CMD_SET 0x0001 | |
263 | #define MWL8K_CMD_GET 0x0000 | |
264 | ||
265 | /* Firmware command codes */ | |
266 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
267 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
268 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 | |
269 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
270 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
271 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
a66098da LB |
272 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
273 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
274 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
275 | #define MWL8K_CMD_SET_AID 0x010d | |
276 | #define MWL8K_CMD_SET_RATE 0x0110 | |
277 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
278 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 279 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
280 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
281 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 282 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 283 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 284 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
32060e1b | 285 | #define MWL8K_CMD_SET_MAC_ADDR 0x0202 |
a66098da | 286 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
ff45fc60 | 287 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
a66098da LB |
288 | |
289 | static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) | |
290 | { | |
291 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ | |
292 | snprintf(buf, bufsize, "%s", #x);\ | |
293 | return buf;\ | |
294 | } while (0) | |
ce9e2e1b | 295 | switch (cmd & ~0x8000) { |
a66098da LB |
296 | MWL8K_CMDNAME(CODE_DNLD); |
297 | MWL8K_CMDNAME(GET_HW_SPEC); | |
298 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); | |
299 | MWL8K_CMDNAME(GET_STAT); | |
300 | MWL8K_CMDNAME(RADIO_CONTROL); | |
301 | MWL8K_CMDNAME(RF_TX_POWER); | |
302 | MWL8K_CMDNAME(SET_PRE_SCAN); | |
303 | MWL8K_CMDNAME(SET_POST_SCAN); | |
304 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
305 | MWL8K_CMDNAME(SET_AID); |
306 | MWL8K_CMDNAME(SET_RATE); | |
307 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
308 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 309 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
310 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
311 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 312 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 313 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 314 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
32060e1b | 315 | MWL8K_CMDNAME(SET_MAC_ADDR); |
a66098da | 316 | MWL8K_CMDNAME(SET_RATEADAPT_MODE); |
ff45fc60 | 317 | MWL8K_CMDNAME(UPDATE_STADB); |
a66098da LB |
318 | default: |
319 | snprintf(buf, bufsize, "0x%x", cmd); | |
320 | } | |
321 | #undef MWL8K_CMDNAME | |
322 | ||
323 | return buf; | |
324 | } | |
325 | ||
326 | /* Hardware and firmware reset */ | |
327 | static void mwl8k_hw_reset(struct mwl8k_priv *priv) | |
328 | { | |
329 | iowrite32(MWL8K_H2A_INT_RESET, | |
330 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
331 | iowrite32(MWL8K_H2A_INT_RESET, | |
332 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
333 | msleep(20); | |
334 | } | |
335 | ||
336 | /* Release fw image */ | |
337 | static void mwl8k_release_fw(struct firmware **fw) | |
338 | { | |
339 | if (*fw == NULL) | |
340 | return; | |
341 | release_firmware(*fw); | |
342 | *fw = NULL; | |
343 | } | |
344 | ||
345 | static void mwl8k_release_firmware(struct mwl8k_priv *priv) | |
346 | { | |
347 | mwl8k_release_fw(&priv->fw.ucode); | |
348 | mwl8k_release_fw(&priv->fw.helper); | |
349 | } | |
350 | ||
351 | /* Request fw image */ | |
352 | static int mwl8k_request_fw(struct mwl8k_priv *priv, | |
c2c357ce | 353 | const char *fname, struct firmware **fw) |
a66098da LB |
354 | { |
355 | /* release current image */ | |
356 | if (*fw != NULL) | |
357 | mwl8k_release_fw(fw); | |
358 | ||
359 | return request_firmware((const struct firmware **)fw, | |
c2c357ce | 360 | fname, &priv->pdev->dev); |
a66098da LB |
361 | } |
362 | ||
45a390dd | 363 | static int mwl8k_request_firmware(struct mwl8k_priv *priv) |
a66098da | 364 | { |
a74b295e | 365 | struct mwl8k_device_info *di = priv->device_info; |
a66098da LB |
366 | int rc; |
367 | ||
a74b295e LB |
368 | if (di->helper_image != NULL) { |
369 | rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw.helper); | |
370 | if (rc) { | |
371 | printk(KERN_ERR "%s: Error requesting helper " | |
372 | "firmware file %s\n", pci_name(priv->pdev), | |
373 | di->helper_image); | |
374 | return rc; | |
375 | } | |
a66098da LB |
376 | } |
377 | ||
a74b295e | 378 | rc = mwl8k_request_fw(priv, di->fw_image, &priv->fw.ucode); |
a66098da | 379 | if (rc) { |
c2c357ce | 380 | printk(KERN_ERR "%s: Error requesting firmware file %s\n", |
a74b295e | 381 | pci_name(priv->pdev), di->fw_image); |
a66098da LB |
382 | mwl8k_release_fw(&priv->fw.helper); |
383 | return rc; | |
384 | } | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
389 | struct mwl8k_cmd_pkt { | |
390 | __le16 code; | |
391 | __le16 length; | |
392 | __le16 seq_num; | |
393 | __le16 result; | |
394 | char payload[0]; | |
395 | } __attribute__((packed)); | |
396 | ||
397 | /* | |
398 | * Firmware loading. | |
399 | */ | |
400 | static int | |
401 | mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) | |
402 | { | |
403 | void __iomem *regs = priv->regs; | |
404 | dma_addr_t dma_addr; | |
a66098da LB |
405 | int loops; |
406 | ||
407 | dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); | |
408 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
409 | return -ENOMEM; | |
410 | ||
411 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
412 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
413 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
414 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
415 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
416 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
417 | ||
a66098da LB |
418 | loops = 1000; |
419 | do { | |
420 | u32 int_code; | |
421 | ||
422 | int_code = ioread32(regs + MWL8K_HIU_INT_CODE); | |
423 | if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { | |
424 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
a66098da LB |
425 | break; |
426 | } | |
427 | ||
3d76e82c | 428 | cond_resched(); |
a66098da LB |
429 | udelay(1); |
430 | } while (--loops); | |
431 | ||
432 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
433 | ||
d4b70570 | 434 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
435 | } |
436 | ||
437 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
438 | const u8 *data, size_t length) | |
439 | { | |
440 | struct mwl8k_cmd_pkt *cmd; | |
441 | int done; | |
442 | int rc = 0; | |
443 | ||
444 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
445 | if (cmd == NULL) | |
446 | return -ENOMEM; | |
447 | ||
448 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
449 | cmd->seq_num = 0; | |
450 | cmd->result = 0; | |
451 | ||
452 | done = 0; | |
453 | while (length) { | |
454 | int block_size = length > 256 ? 256 : length; | |
455 | ||
456 | memcpy(cmd->payload, data + done, block_size); | |
457 | cmd->length = cpu_to_le16(block_size); | |
458 | ||
459 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
460 | sizeof(*cmd) + block_size); | |
461 | if (rc) | |
462 | break; | |
463 | ||
464 | done += block_size; | |
465 | length -= block_size; | |
466 | } | |
467 | ||
468 | if (!rc) { | |
469 | cmd->length = 0; | |
470 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
471 | } | |
472 | ||
473 | kfree(cmd); | |
474 | ||
475 | return rc; | |
476 | } | |
477 | ||
478 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
479 | const u8 *data, size_t length) | |
480 | { | |
481 | unsigned char *buffer; | |
482 | int may_continue, rc = 0; | |
483 | u32 done, prev_block_size; | |
484 | ||
485 | buffer = kmalloc(1024, GFP_KERNEL); | |
486 | if (buffer == NULL) | |
487 | return -ENOMEM; | |
488 | ||
489 | done = 0; | |
490 | prev_block_size = 0; | |
491 | may_continue = 1000; | |
492 | while (may_continue > 0) { | |
493 | u32 block_size; | |
494 | ||
495 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
496 | if (block_size & 1) { | |
497 | block_size &= ~1; | |
498 | may_continue--; | |
499 | } else { | |
500 | done += prev_block_size; | |
501 | length -= prev_block_size; | |
502 | } | |
503 | ||
504 | if (block_size > 1024 || block_size > length) { | |
505 | rc = -EOVERFLOW; | |
506 | break; | |
507 | } | |
508 | ||
509 | if (length == 0) { | |
510 | rc = 0; | |
511 | break; | |
512 | } | |
513 | ||
514 | if (block_size == 0) { | |
515 | rc = -EPROTO; | |
516 | may_continue--; | |
517 | udelay(1); | |
518 | continue; | |
519 | } | |
520 | ||
521 | prev_block_size = block_size; | |
522 | memcpy(buffer, data + done, block_size); | |
523 | ||
524 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
525 | if (rc) | |
526 | break; | |
527 | } | |
528 | ||
529 | if (!rc && length != 0) | |
530 | rc = -EREMOTEIO; | |
531 | ||
532 | kfree(buffer); | |
533 | ||
534 | return rc; | |
535 | } | |
536 | ||
c2c357ce | 537 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 538 | { |
c2c357ce LB |
539 | struct mwl8k_priv *priv = hw->priv; |
540 | struct firmware *fw = priv->fw.ucode; | |
eae74e65 | 541 | struct mwl8k_device_info *di = priv->device_info; |
c2c357ce LB |
542 | int rc; |
543 | int loops; | |
544 | ||
545 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
546 | struct firmware *helper = priv->fw.helper; | |
a66098da | 547 | |
c2c357ce LB |
548 | if (helper == NULL) { |
549 | printk(KERN_ERR "%s: helper image needed but none " | |
550 | "given\n", pci_name(priv->pdev)); | |
551 | return -EINVAL; | |
552 | } | |
a66098da | 553 | |
c2c357ce | 554 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
555 | if (rc) { |
556 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 557 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
558 | return rc; |
559 | } | |
560 | msleep(1); | |
561 | ||
c2c357ce | 562 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 563 | } else { |
c2c357ce | 564 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
565 | } |
566 | ||
567 | if (rc) { | |
c2c357ce LB |
568 | printk(KERN_ERR "%s: unable to load firmware image\n", |
569 | pci_name(priv->pdev)); | |
a66098da LB |
570 | return rc; |
571 | } | |
572 | ||
eae74e65 LB |
573 | if (di->modes & BIT(NL80211_IFTYPE_AP)) |
574 | iowrite32(MWL8K_MODE_AP, priv->regs + MWL8K_HIU_GEN_PTR); | |
575 | else | |
576 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); | |
a66098da LB |
577 | msleep(1); |
578 | ||
579 | loops = 200000; | |
580 | do { | |
eae74e65 LB |
581 | u32 ready_code; |
582 | ||
583 | ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
584 | if (ready_code == MWL8K_FWAP_READY) { | |
585 | priv->ap_fw = 1; | |
586 | break; | |
587 | } else if (ready_code == MWL8K_FWSTA_READY) { | |
588 | priv->ap_fw = 0; | |
a66098da | 589 | break; |
eae74e65 LB |
590 | } |
591 | ||
592 | cond_resched(); | |
a66098da LB |
593 | udelay(1); |
594 | } while (--loops); | |
595 | ||
596 | return loops ? 0 : -ETIMEDOUT; | |
597 | } | |
598 | ||
599 | ||
600 | /* | |
601 | * Defines shared between transmission and reception. | |
602 | */ | |
603 | /* HT control fields for firmware */ | |
604 | struct ewc_ht_info { | |
605 | __le16 control1; | |
606 | __le16 control2; | |
607 | __le16 control3; | |
608 | } __attribute__((packed)); | |
609 | ||
610 | /* Firmware Station database operations */ | |
611 | #define MWL8K_STA_DB_ADD_ENTRY 0 | |
612 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 | |
613 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
614 | #define MWL8K_STA_DB_FLUSH 3 | |
615 | ||
616 | /* Peer Entry flags - used to define the type of the peer node */ | |
617 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
a66098da | 618 | |
5dfd3e2c | 619 | #define MWL8K_IEEE_LEGACY_DATA_RATES 13 |
a66098da | 620 | #define MWL8K_MCS_BITMAP_SIZE 16 |
a66098da LB |
621 | |
622 | struct peer_capability_info { | |
623 | /* Peer type - AP vs. STA. */ | |
624 | __u8 peer_type; | |
625 | ||
626 | /* Basic 802.11 capabilities from assoc resp. */ | |
627 | __le16 basic_caps; | |
628 | ||
629 | /* Set if peer supports 802.11n high throughput (HT). */ | |
630 | __u8 ht_support; | |
631 | ||
632 | /* Valid if HT is supported. */ | |
633 | __le16 ht_caps; | |
634 | __u8 extended_ht_caps; | |
635 | struct ewc_ht_info ewc_info; | |
636 | ||
637 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
638 | __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
639 | ||
640 | /* HT rate table. Intersection of our rates and peer rates. */ | |
641 | __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; | |
c23b5a69 | 642 | __u8 pad[16]; |
a66098da LB |
643 | |
644 | /* If set, interoperability mode, no proprietary extensions. */ | |
645 | __u8 interop; | |
646 | __u8 pad2; | |
647 | __u8 station_id; | |
648 | __le16 amsdu_enabled; | |
649 | } __attribute__((packed)); | |
650 | ||
651 | /* Inline functions to manipulate QoS field in data descriptor. */ | |
a66098da LB |
652 | static inline u16 mwl8k_qos_setbit_eosp(u16 qos) |
653 | { | |
654 | u16 val_mask = 1 << 4; | |
655 | ||
656 | /* End of Service Period Bit 4 */ | |
657 | return qos | val_mask; | |
658 | } | |
659 | ||
660 | static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy) | |
661 | { | |
662 | u16 val_mask = 0x3; | |
663 | u8 shift = 5; | |
664 | u16 qos_mask = ~(val_mask << shift); | |
665 | ||
666 | /* Ack Policy Bit 5-6 */ | |
667 | return (qos & qos_mask) | ((ack_policy & val_mask) << shift); | |
668 | } | |
669 | ||
670 | static inline u16 mwl8k_qos_setbit_amsdu(u16 qos) | |
671 | { | |
672 | u16 val_mask = 1 << 7; | |
673 | ||
674 | /* AMSDU present Bit 7 */ | |
675 | return qos | val_mask; | |
676 | } | |
677 | ||
678 | static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) | |
679 | { | |
680 | u16 val_mask = 0xff; | |
681 | u8 shift = 8; | |
682 | u16 qos_mask = ~(val_mask << shift); | |
683 | ||
684 | /* Queue Length Bits 8-15 */ | |
685 | return (qos & qos_mask) | ((len & val_mask) << shift); | |
686 | } | |
687 | ||
688 | /* DMA header used by firmware and hardware. */ | |
689 | struct mwl8k_dma_data { | |
690 | __le16 fwlen; | |
691 | struct ieee80211_hdr wh; | |
692 | } __attribute__((packed)); | |
693 | ||
694 | /* Routines to add/remove DMA header from skb. */ | |
76266b2a | 695 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb) |
a66098da | 696 | { |
76266b2a | 697 | struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data; |
a66098da | 698 | void *dst, *src = &tr->wh; |
76266b2a | 699 | int hdrlen = ieee80211_hdrlen(tr->wh.frame_control); |
a66098da LB |
700 | u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; |
701 | ||
702 | dst = (void *)tr + space; | |
703 | if (dst != src) { | |
704 | memmove(dst, src, hdrlen); | |
705 | skb_pull(skb, space); | |
706 | } | |
a66098da LB |
707 | } |
708 | ||
76266b2a | 709 | static inline void mwl8k_add_dma_header(struct sk_buff *skb) |
a66098da LB |
710 | { |
711 | struct ieee80211_hdr *wh; | |
712 | u32 hdrlen, pktlen; | |
713 | struct mwl8k_dma_data *tr; | |
714 | ||
715 | wh = (struct ieee80211_hdr *)skb->data; | |
716 | hdrlen = ieee80211_hdrlen(wh->frame_control); | |
717 | pktlen = skb->len; | |
718 | ||
719 | /* | |
720 | * Copy up/down the 802.11 header; the firmware requires | |
721 | * we present a 2-byte payload length followed by a | |
722 | * 4-address header (w/o QoS), followed (optionally) by | |
723 | * any WEP/ExtIV header (but only filled in for CCMP). | |
724 | */ | |
725 | if (hdrlen != sizeof(struct mwl8k_dma_data)) | |
726 | skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); | |
727 | ||
728 | tr = (struct mwl8k_dma_data *)skb->data; | |
729 | if (wh != &tr->wh) | |
730 | memmove(&tr->wh, wh, hdrlen); | |
731 | ||
732 | /* Clear addr4 */ | |
d89173f2 | 733 | memset(tr->wh.addr4, 0, ETH_ALEN); |
a66098da LB |
734 | |
735 | /* | |
736 | * Firmware length is the length of the fully formed "802.11 | |
737 | * payload". That is, everything except for the 802.11 header. | |
738 | * This includes all crypto material including the MIC. | |
739 | */ | |
740 | tr->fwlen = cpu_to_le16(pktlen - hdrlen); | |
a66098da LB |
741 | } |
742 | ||
743 | ||
744 | /* | |
745 | * Packet reception. | |
746 | */ | |
a66098da | 747 | #define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02 |
a66098da LB |
748 | |
749 | struct mwl8k_rx_desc { | |
750 | __le16 pkt_len; | |
751 | __u8 link_quality; | |
752 | __u8 noise_level; | |
753 | __le32 pkt_phys_addr; | |
45eb400d | 754 | __le32 next_rxd_phys_addr; |
a66098da LB |
755 | __le16 qos_control; |
756 | __le16 rate_info; | |
757 | __le32 pad0[4]; | |
758 | __u8 rssi; | |
759 | __u8 channel; | |
760 | __le16 pad1; | |
761 | __u8 rx_ctrl; | |
762 | __u8 rx_status; | |
763 | __u8 pad2[2]; | |
764 | } __attribute__((packed)); | |
765 | ||
766 | #define MWL8K_RX_DESCS 256 | |
767 | #define MWL8K_RX_MAXSZ 3800 | |
768 | ||
5dfd3e2c LB |
769 | #define RATE_INFO_SHORTPRE 0x8000 |
770 | #define RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3) | |
771 | #define RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f) | |
772 | #define RATE_INFO_40MHZ 0x0004 | |
773 | #define RATE_INFO_SHORTGI 0x0002 | |
774 | #define RATE_INFO_MCS_FORMAT 0x0001 | |
775 | ||
a66098da LB |
776 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) |
777 | { | |
778 | struct mwl8k_priv *priv = hw->priv; | |
779 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
780 | int size; | |
781 | int i; | |
782 | ||
45eb400d LB |
783 | rxq->rxd_count = 0; |
784 | rxq->head = 0; | |
785 | rxq->tail = 0; | |
a66098da LB |
786 | |
787 | size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc); | |
788 | ||
45eb400d LB |
789 | rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma); |
790 | if (rxq->rxd == NULL) { | |
a66098da | 791 | printk(KERN_ERR "%s: failed to alloc RX descriptors\n", |
c2c357ce | 792 | wiphy_name(hw->wiphy)); |
a66098da LB |
793 | return -ENOMEM; |
794 | } | |
45eb400d | 795 | memset(rxq->rxd, 0, size); |
a66098da | 796 | |
788838eb LB |
797 | rxq->buf = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->buf), GFP_KERNEL); |
798 | if (rxq->buf == NULL) { | |
a66098da | 799 | printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", |
c2c357ce | 800 | wiphy_name(hw->wiphy)); |
45eb400d | 801 | pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma); |
a66098da LB |
802 | return -ENOMEM; |
803 | } | |
788838eb | 804 | memset(rxq->buf, 0, MWL8K_RX_DESCS * sizeof(*rxq->buf)); |
a66098da LB |
805 | |
806 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
807 | struct mwl8k_rx_desc *rx_desc; | |
808 | int nexti; | |
809 | ||
45eb400d | 810 | rx_desc = rxq->rxd + i; |
a66098da LB |
811 | nexti = (i + 1) % MWL8K_RX_DESCS; |
812 | ||
45eb400d LB |
813 | rx_desc->next_rxd_phys_addr = |
814 | cpu_to_le32(rxq->rxd_dma + nexti * sizeof(*rx_desc)); | |
c491bf12 | 815 | rx_desc->rx_ctrl = MWL8K_RX_CTRL_OWNED_BY_HOST; |
a66098da LB |
816 | } |
817 | ||
818 | return 0; | |
819 | } | |
820 | ||
821 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
822 | { | |
823 | struct mwl8k_priv *priv = hw->priv; | |
824 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
825 | int refilled; | |
826 | ||
827 | refilled = 0; | |
45eb400d | 828 | while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) { |
a66098da | 829 | struct sk_buff *skb; |
788838eb | 830 | dma_addr_t addr; |
a66098da LB |
831 | int rx; |
832 | ||
833 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
834 | if (skb == NULL) | |
835 | break; | |
836 | ||
45eb400d | 837 | rxq->rxd_count++; |
a66098da | 838 | |
45eb400d LB |
839 | rx = rxq->tail; |
840 | rxq->tail = (rx + 1) % MWL8K_RX_DESCS; | |
a66098da | 841 | |
788838eb LB |
842 | addr = pci_map_single(priv->pdev, skb->data, |
843 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE); | |
a66098da | 844 | |
45eb400d | 845 | rxq->rxd[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ); |
788838eb LB |
846 | rxq->rxd[rx].pkt_phys_addr = cpu_to_le32(addr); |
847 | rxq->buf[rx].skb = skb; | |
848 | pci_unmap_addr_set(&rxq->buf[rx], dma, addr); | |
a66098da | 849 | wmb(); |
45eb400d | 850 | rxq->rxd[rx].rx_ctrl = 0; |
a66098da LB |
851 | |
852 | refilled++; | |
853 | } | |
854 | ||
855 | return refilled; | |
856 | } | |
857 | ||
858 | /* Must be called only when the card's reception is completely halted */ | |
859 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
860 | { | |
861 | struct mwl8k_priv *priv = hw->priv; | |
862 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
863 | int i; | |
864 | ||
865 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
788838eb LB |
866 | if (rxq->buf[i].skb != NULL) { |
867 | pci_unmap_single(priv->pdev, | |
868 | pci_unmap_addr(&rxq->buf[i], dma), | |
869 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
870 | pci_unmap_addr_set(&rxq->buf[i], dma, 0); | |
871 | ||
872 | kfree_skb(rxq->buf[i].skb); | |
873 | rxq->buf[i].skb = NULL; | |
a66098da LB |
874 | } |
875 | } | |
876 | ||
788838eb LB |
877 | kfree(rxq->buf); |
878 | rxq->buf = NULL; | |
a66098da LB |
879 | |
880 | pci_free_consistent(priv->pdev, | |
881 | MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc), | |
45eb400d LB |
882 | rxq->rxd, rxq->rxd_dma); |
883 | rxq->rxd = NULL; | |
a66098da LB |
884 | } |
885 | ||
886 | ||
887 | /* | |
888 | * Scan a list of BSSIDs to process for finalize join. | |
889 | * Allows for extension to process multiple BSSIDs. | |
890 | */ | |
891 | static inline int | |
892 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
893 | { | |
894 | return priv->capture_beacon && | |
895 | ieee80211_is_beacon(wh->frame_control) && | |
896 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
897 | } | |
898 | ||
3779752d LB |
899 | static inline void mwl8k_save_beacon(struct ieee80211_hw *hw, |
900 | struct sk_buff *skb) | |
a66098da | 901 | { |
3779752d LB |
902 | struct mwl8k_priv *priv = hw->priv; |
903 | ||
a66098da | 904 | priv->capture_beacon = false; |
d89173f2 | 905 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
906 | |
907 | /* | |
908 | * Use GFP_ATOMIC as rxq_process is called from | |
909 | * the primary interrupt handler, memory allocation call | |
910 | * must not sleep. | |
911 | */ | |
912 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
913 | if (priv->beacon_skb != NULL) | |
3779752d | 914 | ieee80211_queue_work(hw, &priv->finalize_join_worker); |
a66098da LB |
915 | } |
916 | ||
917 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) | |
918 | { | |
919 | struct mwl8k_priv *priv = hw->priv; | |
920 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
921 | int processed; | |
922 | ||
923 | processed = 0; | |
45eb400d | 924 | while (rxq->rxd_count && limit--) { |
a66098da LB |
925 | struct mwl8k_rx_desc *rx_desc; |
926 | struct sk_buff *skb; | |
927 | struct ieee80211_rx_status status; | |
a66098da | 928 | struct ieee80211_hdr *wh; |
5dfd3e2c | 929 | u16 rate_info; |
a66098da | 930 | |
45eb400d | 931 | rx_desc = rxq->rxd + rxq->head; |
a66098da LB |
932 | if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST)) |
933 | break; | |
934 | rmb(); | |
935 | ||
788838eb | 936 | skb = rxq->buf[rxq->head].skb; |
d25f9f13 LB |
937 | if (skb == NULL) |
938 | break; | |
788838eb LB |
939 | rxq->buf[rxq->head].skb = NULL; |
940 | ||
941 | pci_unmap_single(priv->pdev, | |
942 | pci_unmap_addr(&rxq->buf[rxq->head], dma), | |
943 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
944 | pci_unmap_addr_set(&rxq->buf[rxq->head], dma, 0); | |
a66098da | 945 | |
45eb400d LB |
946 | rxq->head = (rxq->head + 1) % MWL8K_RX_DESCS; |
947 | rxq->rxd_count--; | |
a66098da | 948 | |
a66098da | 949 | skb_put(skb, le16_to_cpu(rx_desc->pkt_len)); |
76266b2a | 950 | mwl8k_remove_dma_header(skb); |
a66098da LB |
951 | |
952 | wh = (struct ieee80211_hdr *)skb->data; | |
953 | ||
954 | /* | |
c2c357ce LB |
955 | * Check for a pending join operation. Save a |
956 | * copy of the beacon and schedule a tasklet to | |
957 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da LB |
958 | */ |
959 | if (mwl8k_capture_bssid(priv, wh)) | |
3779752d | 960 | mwl8k_save_beacon(hw, skb); |
a66098da | 961 | |
5dfd3e2c LB |
962 | rate_info = le16_to_cpu(rx_desc->rate_info); |
963 | ||
a66098da LB |
964 | memset(&status, 0, sizeof(status)); |
965 | status.mactime = 0; | |
966 | status.signal = -rx_desc->rssi; | |
967 | status.noise = -rx_desc->noise_level; | |
968 | status.qual = rx_desc->link_quality; | |
5dfd3e2c LB |
969 | status.antenna = RATE_INFO_ANTSELECT(rate_info); |
970 | status.rate_idx = RATE_INFO_RATEID(rate_info); | |
a66098da | 971 | status.flag = 0; |
5dfd3e2c LB |
972 | if (rate_info & RATE_INFO_SHORTPRE) |
973 | status.flag |= RX_FLAG_SHORTPRE; | |
974 | if (rate_info & RATE_INFO_40MHZ) | |
975 | status.flag |= RX_FLAG_40MHZ; | |
976 | if (rate_info & RATE_INFO_SHORTGI) | |
977 | status.flag |= RX_FLAG_SHORT_GI; | |
978 | if (rate_info & RATE_INFO_MCS_FORMAT) | |
979 | status.flag |= RX_FLAG_HT; | |
a66098da LB |
980 | status.band = IEEE80211_BAND_2GHZ; |
981 | status.freq = ieee80211_channel_to_frequency(rx_desc->channel); | |
f1d58c25 JB |
982 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
983 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
984 | |
985 | processed++; | |
986 | } | |
987 | ||
988 | return processed; | |
989 | } | |
990 | ||
991 | ||
992 | /* | |
993 | * Packet transmission. | |
994 | */ | |
995 | ||
a66098da LB |
996 | /* Transmit packet ACK policy */ |
997 | #define MWL8K_TXD_ACK_POLICY_NORMAL 0 | |
a66098da LB |
998 | #define MWL8K_TXD_ACK_POLICY_BLOCKACK 3 |
999 | ||
a66098da LB |
1000 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
1001 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
1002 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
1003 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 1004 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da LB |
1005 | |
1006 | struct mwl8k_tx_desc { | |
1007 | __le32 status; | |
1008 | __u8 data_rate; | |
1009 | __u8 tx_priority; | |
1010 | __le16 qos_control; | |
1011 | __le32 pkt_phys_addr; | |
1012 | __le16 pkt_len; | |
d89173f2 | 1013 | __u8 dest_MAC_addr[ETH_ALEN]; |
45eb400d | 1014 | __le32 next_txd_phys_addr; |
a66098da LB |
1015 | __le32 reserved; |
1016 | __le16 rate_info; | |
1017 | __u8 peer_id; | |
1018 | __u8 tx_frag_cnt; | |
1019 | } __attribute__((packed)); | |
1020 | ||
1021 | #define MWL8K_TX_DESCS 128 | |
1022 | ||
1023 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1024 | { | |
1025 | struct mwl8k_priv *priv = hw->priv; | |
1026 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1027 | int size; | |
1028 | int i; | |
1029 | ||
45eb400d LB |
1030 | memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats)); |
1031 | txq->stats.limit = MWL8K_TX_DESCS; | |
1032 | txq->head = 0; | |
1033 | txq->tail = 0; | |
a66098da LB |
1034 | |
1035 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1036 | ||
45eb400d LB |
1037 | txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma); |
1038 | if (txq->txd == NULL) { | |
a66098da | 1039 | printk(KERN_ERR "%s: failed to alloc TX descriptors\n", |
c2c357ce | 1040 | wiphy_name(hw->wiphy)); |
a66098da LB |
1041 | return -ENOMEM; |
1042 | } | |
45eb400d | 1043 | memset(txq->txd, 0, size); |
a66098da | 1044 | |
45eb400d LB |
1045 | txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL); |
1046 | if (txq->skb == NULL) { | |
a66098da | 1047 | printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", |
c2c357ce | 1048 | wiphy_name(hw->wiphy)); |
45eb400d | 1049 | pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma); |
a66098da LB |
1050 | return -ENOMEM; |
1051 | } | |
45eb400d | 1052 | memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb)); |
a66098da LB |
1053 | |
1054 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1055 | struct mwl8k_tx_desc *tx_desc; | |
1056 | int nexti; | |
1057 | ||
45eb400d | 1058 | tx_desc = txq->txd + i; |
a66098da LB |
1059 | nexti = (i + 1) % MWL8K_TX_DESCS; |
1060 | ||
1061 | tx_desc->status = 0; | |
45eb400d LB |
1062 | tx_desc->next_txd_phys_addr = |
1063 | cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc)); | |
a66098da LB |
1064 | } |
1065 | ||
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1070 | { | |
1071 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1072 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1073 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1074 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1075 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1076 | } | |
1077 | ||
a66098da LB |
1078 | struct mwl8k_txq_info { |
1079 | u32 fw_owned; | |
1080 | u32 drv_owned; | |
1081 | u32 unused; | |
1082 | u32 len; | |
1083 | u32 head; | |
1084 | u32 tail; | |
1085 | }; | |
1086 | ||
1087 | static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, | |
c3f967d3 | 1088 | struct mwl8k_txq_info *txinfo) |
a66098da LB |
1089 | { |
1090 | int count, desc, status; | |
1091 | struct mwl8k_tx_queue *txq; | |
1092 | struct mwl8k_tx_desc *tx_desc; | |
1093 | int ndescs = 0; | |
1094 | ||
c3f967d3 LB |
1095 | memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info)); |
1096 | ||
c3f967d3 | 1097 | for (count = 0; count < MWL8K_TX_QUEUES; count++) { |
a66098da | 1098 | txq = priv->txq + count; |
45eb400d LB |
1099 | txinfo[count].len = txq->stats.len; |
1100 | txinfo[count].head = txq->head; | |
1101 | txinfo[count].tail = txq->tail; | |
a66098da | 1102 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { |
45eb400d | 1103 | tx_desc = txq->txd + desc; |
a66098da LB |
1104 | status = le32_to_cpu(tx_desc->status); |
1105 | ||
1106 | if (status & MWL8K_TXD_STATUS_FW_OWNED) | |
1107 | txinfo[count].fw_owned++; | |
1108 | else | |
1109 | txinfo[count].drv_owned++; | |
1110 | ||
1111 | if (tx_desc->pkt_len == 0) | |
1112 | txinfo[count].unused++; | |
1113 | } | |
1114 | } | |
a66098da LB |
1115 | |
1116 | return ndescs; | |
1117 | } | |
1118 | ||
618952a7 | 1119 | /* |
88de754a | 1120 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1121 | */ |
950d5b01 | 1122 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1123 | { |
a66098da | 1124 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1125 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
ce9e2e1b LB |
1126 | u32 count; |
1127 | unsigned long timeout; | |
a66098da LB |
1128 | |
1129 | might_sleep(); | |
1130 | ||
a66098da | 1131 | spin_lock_bh(&priv->tx_lock); |
88de754a LB |
1132 | count = priv->pending_tx_pkts; |
1133 | if (count) | |
1134 | priv->tx_wait = &tx_wait; | |
a66098da LB |
1135 | spin_unlock_bh(&priv->tx_lock); |
1136 | ||
1137 | if (count) { | |
c3f967d3 | 1138 | struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; |
a66098da LB |
1139 | int index; |
1140 | int newcount; | |
1141 | ||
88de754a | 1142 | timeout = wait_for_completion_timeout(&tx_wait, |
618952a7 | 1143 | msecs_to_jiffies(5000)); |
a66098da LB |
1144 | if (timeout) |
1145 | return 0; | |
1146 | ||
1147 | spin_lock_bh(&priv->tx_lock); | |
1148 | priv->tx_wait = NULL; | |
88de754a LB |
1149 | newcount = priv->pending_tx_pkts; |
1150 | mwl8k_scan_tx_ring(priv, txinfo); | |
a66098da LB |
1151 | spin_unlock_bh(&priv->tx_lock); |
1152 | ||
618952a7 | 1153 | printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n", |
950d5b01 | 1154 | __func__, __LINE__, count, newcount); |
a66098da | 1155 | |
c3f967d3 | 1156 | for (index = 0; index < MWL8K_TX_QUEUES; index++) |
c2c357ce LB |
1157 | printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u " |
1158 | "DRV:%u U:%u\n", | |
a66098da LB |
1159 | index, |
1160 | txinfo[index].len, | |
1161 | txinfo[index].head, | |
1162 | txinfo[index].tail, | |
1163 | txinfo[index].fw_owned, | |
1164 | txinfo[index].drv_owned, | |
1165 | txinfo[index].unused); | |
ce9e2e1b | 1166 | |
a66098da LB |
1167 | return -ETIMEDOUT; |
1168 | } | |
1169 | ||
1170 | return 0; | |
1171 | } | |
1172 | ||
c23b5a69 LB |
1173 | #define MWL8K_TXD_SUCCESS(status) \ |
1174 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1175 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1176 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da LB |
1177 | |
1178 | static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) | |
1179 | { | |
1180 | struct mwl8k_priv *priv = hw->priv; | |
1181 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1182 | int wake = 0; | |
1183 | ||
45eb400d | 1184 | while (txq->stats.len > 0) { |
a66098da | 1185 | int tx; |
a66098da LB |
1186 | struct mwl8k_tx_desc *tx_desc; |
1187 | unsigned long addr; | |
ce9e2e1b | 1188 | int size; |
a66098da LB |
1189 | struct sk_buff *skb; |
1190 | struct ieee80211_tx_info *info; | |
1191 | u32 status; | |
1192 | ||
45eb400d LB |
1193 | tx = txq->head; |
1194 | tx_desc = txq->txd + tx; | |
a66098da LB |
1195 | |
1196 | status = le32_to_cpu(tx_desc->status); | |
1197 | ||
1198 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1199 | if (!force) | |
1200 | break; | |
1201 | tx_desc->status &= | |
1202 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1203 | } | |
1204 | ||
45eb400d LB |
1205 | txq->head = (tx + 1) % MWL8K_TX_DESCS; |
1206 | BUG_ON(txq->stats.len == 0); | |
1207 | txq->stats.len--; | |
a66098da LB |
1208 | priv->pending_tx_pkts--; |
1209 | ||
1210 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1211 | size = le16_to_cpu(tx_desc->pkt_len); |
45eb400d LB |
1212 | skb = txq->skb[tx]; |
1213 | txq->skb[tx] = NULL; | |
a66098da LB |
1214 | |
1215 | BUG_ON(skb == NULL); | |
1216 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1217 | ||
76266b2a | 1218 | mwl8k_remove_dma_header(skb); |
a66098da LB |
1219 | |
1220 | /* Mark descriptor as unused */ | |
1221 | tx_desc->pkt_phys_addr = 0; | |
1222 | tx_desc->pkt_len = 0; | |
1223 | ||
a66098da LB |
1224 | info = IEEE80211_SKB_CB(skb); |
1225 | ieee80211_tx_info_clear_status(info); | |
ce9e2e1b | 1226 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1227 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1228 | |
1229 | ieee80211_tx_status_irqsafe(hw, skb); | |
1230 | ||
618952a7 | 1231 | wake = 1; |
a66098da LB |
1232 | } |
1233 | ||
618952a7 | 1234 | if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex)) |
a66098da LB |
1235 | ieee80211_wake_queue(hw, index); |
1236 | } | |
1237 | ||
1238 | /* must be called only when the card's transmit is completely halted */ | |
1239 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1240 | { | |
1241 | struct mwl8k_priv *priv = hw->priv; | |
1242 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1243 | ||
1244 | mwl8k_txq_reclaim(hw, index, 1); | |
1245 | ||
45eb400d LB |
1246 | kfree(txq->skb); |
1247 | txq->skb = NULL; | |
a66098da LB |
1248 | |
1249 | pci_free_consistent(priv->pdev, | |
1250 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
45eb400d LB |
1251 | txq->txd, txq->txd_dma); |
1252 | txq->txd = NULL; | |
a66098da LB |
1253 | } |
1254 | ||
1255 | static int | |
1256 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) | |
1257 | { | |
1258 | struct mwl8k_priv *priv = hw->priv; | |
1259 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1260 | struct mwl8k_vif *mwl8k_vif; |
a66098da LB |
1261 | struct ieee80211_hdr *wh; |
1262 | struct mwl8k_tx_queue *txq; | |
1263 | struct mwl8k_tx_desc *tx; | |
a66098da | 1264 | dma_addr_t dma; |
23b33906 LB |
1265 | u32 txstatus; |
1266 | u8 txdatarate; | |
1267 | u16 qos; | |
a66098da | 1268 | |
23b33906 LB |
1269 | wh = (struct ieee80211_hdr *)skb->data; |
1270 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1271 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1272 | else | |
1273 | qos = 0; | |
a66098da | 1274 | |
76266b2a | 1275 | mwl8k_add_dma_header(skb); |
23b33906 | 1276 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1277 | |
1278 | tx_info = IEEE80211_SKB_CB(skb); | |
1279 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); | |
a66098da LB |
1280 | |
1281 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1282 | u16 seqno = mwl8k_vif->seqno; | |
23b33906 | 1283 | |
a66098da LB |
1284 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
1285 | wh->seq_ctrl |= cpu_to_le16(seqno << 4); | |
1286 | mwl8k_vif->seqno = seqno++ % 4096; | |
1287 | } | |
1288 | ||
23b33906 LB |
1289 | /* Setup firmware control bit fields for each frame type. */ |
1290 | txstatus = 0; | |
1291 | txdatarate = 0; | |
1292 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1293 | ieee80211_is_ctl(wh->frame_control)) { | |
1294 | txdatarate = 0; | |
1295 | qos = mwl8k_qos_setbit_eosp(qos); | |
1296 | /* Set Queue size to unspecified */ | |
1297 | qos = mwl8k_qos_setbit_qlen(qos, 0xff); | |
1298 | } else if (ieee80211_is_data(wh->frame_control)) { | |
1299 | txdatarate = 1; | |
1300 | if (is_multicast_ether_addr(wh->addr1)) | |
1301 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1302 | ||
1303 | /* Send pkt in an aggregate if AMPDU frame. */ | |
1304 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) | |
1305 | qos = mwl8k_qos_setbit_ack(qos, | |
1306 | MWL8K_TXD_ACK_POLICY_BLOCKACK); | |
1307 | else | |
1308 | qos = mwl8k_qos_setbit_ack(qos, | |
1309 | MWL8K_TXD_ACK_POLICY_NORMAL); | |
1310 | ||
1311 | if (qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) | |
1312 | qos = mwl8k_qos_setbit_amsdu(qos); | |
1313 | } | |
a66098da LB |
1314 | |
1315 | dma = pci_map_single(priv->pdev, skb->data, | |
1316 | skb->len, PCI_DMA_TODEVICE); | |
1317 | ||
1318 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
1319 | printk(KERN_DEBUG "%s: failed to dma map skb, " | |
c2c357ce | 1320 | "dropping TX frame.\n", wiphy_name(hw->wiphy)); |
23b33906 | 1321 | dev_kfree_skb(skb); |
a66098da LB |
1322 | return NETDEV_TX_OK; |
1323 | } | |
1324 | ||
23b33906 | 1325 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1326 | |
23b33906 | 1327 | txq = priv->txq + index; |
a66098da | 1328 | |
45eb400d LB |
1329 | BUG_ON(txq->skb[txq->tail] != NULL); |
1330 | txq->skb[txq->tail] = skb; | |
a66098da | 1331 | |
45eb400d | 1332 | tx = txq->txd + txq->tail; |
23b33906 LB |
1333 | tx->data_rate = txdatarate; |
1334 | tx->tx_priority = index; | |
a66098da | 1335 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1336 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1337 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 LB |
1338 | tx->rate_info = 0; |
1339 | tx->peer_id = mwl8k_vif->peer_id; | |
a66098da | 1340 | wmb(); |
23b33906 LB |
1341 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1342 | ||
45eb400d LB |
1343 | txq->stats.count++; |
1344 | txq->stats.len++; | |
a66098da | 1345 | priv->pending_tx_pkts++; |
a66098da | 1346 | |
45eb400d LB |
1347 | txq->tail++; |
1348 | if (txq->tail == MWL8K_TX_DESCS) | |
1349 | txq->tail = 0; | |
23b33906 | 1350 | |
45eb400d | 1351 | if (txq->head == txq->tail) |
a66098da LB |
1352 | ieee80211_stop_queue(hw, index); |
1353 | ||
23b33906 | 1354 | mwl8k_tx_start(priv); |
a66098da LB |
1355 | |
1356 | spin_unlock_bh(&priv->tx_lock); | |
1357 | ||
1358 | return NETDEV_TX_OK; | |
1359 | } | |
1360 | ||
1361 | ||
618952a7 LB |
1362 | /* |
1363 | * Firmware access. | |
1364 | * | |
1365 | * We have the following requirements for issuing firmware commands: | |
1366 | * - Some commands require that the packet transmit path is idle when | |
1367 | * the command is issued. (For simplicity, we'll just quiesce the | |
1368 | * transmit path for every command.) | |
1369 | * - There are certain sequences of commands that need to be issued to | |
1370 | * the hardware sequentially, with no other intervening commands. | |
1371 | * | |
1372 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1373 | * can be taken recursively, and which is taken by both the low-level | |
1374 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1375 | * that function that require issuing of an atomic sequence of commands, | |
1376 | * and quiesces the transmit path whenever it's taken. | |
1377 | */ | |
1378 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1379 | { | |
1380 | struct mwl8k_priv *priv = hw->priv; | |
1381 | ||
1382 | if (priv->fw_mutex_owner != current) { | |
1383 | int rc; | |
1384 | ||
1385 | mutex_lock(&priv->fw_mutex); | |
1386 | ieee80211_stop_queues(hw); | |
1387 | ||
1388 | rc = mwl8k_tx_wait_empty(hw); | |
1389 | if (rc) { | |
1390 | ieee80211_wake_queues(hw); | |
1391 | mutex_unlock(&priv->fw_mutex); | |
1392 | ||
1393 | return rc; | |
1394 | } | |
1395 | ||
1396 | priv->fw_mutex_owner = current; | |
1397 | } | |
1398 | ||
1399 | priv->fw_mutex_depth++; | |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1405 | { | |
1406 | struct mwl8k_priv *priv = hw->priv; | |
1407 | ||
1408 | if (!--priv->fw_mutex_depth) { | |
1409 | ieee80211_wake_queues(hw); | |
1410 | priv->fw_mutex_owner = NULL; | |
1411 | mutex_unlock(&priv->fw_mutex); | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | ||
a66098da LB |
1416 | /* |
1417 | * Command processing. | |
1418 | */ | |
1419 | ||
1420 | /* Timeout firmware commands after 2000ms */ | |
1421 | #define MWL8K_CMD_TIMEOUT_MS 2000 | |
1422 | ||
1423 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1424 | { | |
1425 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1426 | struct mwl8k_priv *priv = hw->priv; | |
1427 | void __iomem *regs = priv->regs; | |
1428 | dma_addr_t dma_addr; | |
1429 | unsigned int dma_size; | |
1430 | int rc; | |
a66098da LB |
1431 | unsigned long timeout = 0; |
1432 | u8 buf[32]; | |
1433 | ||
c2c357ce | 1434 | cmd->result = 0xffff; |
a66098da LB |
1435 | dma_size = le16_to_cpu(cmd->length); |
1436 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1437 | PCI_DMA_BIDIRECTIONAL); | |
1438 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1439 | return -ENOMEM; | |
1440 | ||
618952a7 | 1441 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1442 | if (rc) { |
1443 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1444 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1445 | return rc; |
39a1e42e | 1446 | } |
a66098da | 1447 | |
a66098da LB |
1448 | priv->hostcmd_wait = &cmd_wait; |
1449 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
1450 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
1451 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1452 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1453 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
1454 | |
1455 | timeout = wait_for_completion_timeout(&cmd_wait, | |
1456 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
1457 | ||
618952a7 LB |
1458 | priv->hostcmd_wait = NULL; |
1459 | ||
1460 | mwl8k_fw_unlock(hw); | |
1461 | ||
37055bd4 LB |
1462 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
1463 | PCI_DMA_BIDIRECTIONAL); | |
1464 | ||
a66098da | 1465 | if (!timeout) { |
a66098da | 1466 | printk(KERN_ERR "%s: Command %s timeout after %u ms\n", |
c2c357ce | 1467 | wiphy_name(hw->wiphy), |
a66098da LB |
1468 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
1469 | MWL8K_CMD_TIMEOUT_MS); | |
1470 | rc = -ETIMEDOUT; | |
1471 | } else { | |
ce9e2e1b | 1472 | rc = cmd->result ? -EINVAL : 0; |
a66098da LB |
1473 | if (rc) |
1474 | printk(KERN_ERR "%s: Command %s error 0x%x\n", | |
c2c357ce | 1475 | wiphy_name(hw->wiphy), |
a66098da | 1476 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
76c962a2 | 1477 | le16_to_cpu(cmd->result)); |
a66098da LB |
1478 | } |
1479 | ||
a66098da LB |
1480 | return rc; |
1481 | } | |
1482 | ||
1483 | /* | |
1484 | * GET_HW_SPEC. | |
1485 | */ | |
1486 | struct mwl8k_cmd_get_hw_spec { | |
1487 | struct mwl8k_cmd_pkt header; | |
1488 | __u8 hw_rev; | |
1489 | __u8 host_interface; | |
1490 | __le16 num_mcaddrs; | |
d89173f2 | 1491 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
1492 | __le16 region_code; |
1493 | __le32 fw_rev; | |
1494 | __le32 ps_cookie; | |
1495 | __le32 caps; | |
1496 | __u8 mcs_bitmap[16]; | |
1497 | __le32 rx_queue_ptr; | |
1498 | __le32 num_tx_queues; | |
1499 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1500 | __le32 caps2; | |
1501 | __le32 num_tx_desc_per_queue; | |
45eb400d | 1502 | __le32 total_rxd; |
a66098da LB |
1503 | } __attribute__((packed)); |
1504 | ||
1505 | static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw) | |
1506 | { | |
1507 | struct mwl8k_priv *priv = hw->priv; | |
1508 | struct mwl8k_cmd_get_hw_spec *cmd; | |
1509 | int rc; | |
1510 | int i; | |
1511 | ||
1512 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1513 | if (cmd == NULL) | |
1514 | return -ENOMEM; | |
1515 | ||
1516 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1517 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1518 | ||
1519 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1520 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
45eb400d | 1521 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); |
4ff6432e | 1522 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); |
a66098da | 1523 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
45eb400d | 1524 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); |
4ff6432e | 1525 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
45eb400d | 1526 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); |
a66098da LB |
1527 | |
1528 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1529 | ||
1530 | if (!rc) { | |
1531 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1532 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 1533 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 1534 | priv->hw_rev = cmd->hw_rev; |
a66098da LB |
1535 | } |
1536 | ||
1537 | kfree(cmd); | |
1538 | return rc; | |
1539 | } | |
1540 | ||
1541 | /* | |
1542 | * CMD_MAC_MULTICAST_ADR. | |
1543 | */ | |
1544 | struct mwl8k_cmd_mac_multicast_adr { | |
1545 | struct mwl8k_cmd_pkt header; | |
1546 | __le16 action; | |
1547 | __le16 numaddr; | |
ce9e2e1b | 1548 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
1549 | }; |
1550 | ||
d5e30845 LB |
1551 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
1552 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
1553 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
1554 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 1555 | |
e81cd2d6 | 1556 | static struct mwl8k_cmd_pkt * |
447ced07 | 1557 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti, |
e81cd2d6 | 1558 | int mc_count, struct dev_addr_list *mclist) |
a66098da | 1559 | { |
e81cd2d6 | 1560 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1561 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
e81cd2d6 | 1562 | int size; |
e81cd2d6 | 1563 | |
447ced07 | 1564 | if (allmulti || mc_count > priv->num_mcaddrs) { |
d5e30845 LB |
1565 | allmulti = 1; |
1566 | mc_count = 0; | |
1567 | } | |
e81cd2d6 LB |
1568 | |
1569 | size = sizeof(*cmd) + mc_count * ETH_ALEN; | |
ce9e2e1b | 1570 | |
e81cd2d6 | 1571 | cmd = kzalloc(size, GFP_ATOMIC); |
a66098da | 1572 | if (cmd == NULL) |
e81cd2d6 | 1573 | return NULL; |
a66098da LB |
1574 | |
1575 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); | |
1576 | cmd->header.length = cpu_to_le16(size); | |
d5e30845 LB |
1577 | cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED | |
1578 | MWL8K_ENABLE_RX_BROADCAST); | |
1579 | ||
1580 | if (allmulti) { | |
1581 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST); | |
1582 | } else if (mc_count) { | |
1583 | int i; | |
1584 | ||
1585 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); | |
1586 | cmd->numaddr = cpu_to_le16(mc_count); | |
1587 | for (i = 0; i < mc_count && mclist; i++) { | |
1588 | if (mclist->da_addrlen != ETH_ALEN) { | |
1589 | kfree(cmd); | |
1590 | return NULL; | |
1591 | } | |
1592 | memcpy(cmd->addr[i], mclist->da_addr, ETH_ALEN); | |
1593 | mclist = mclist->next; | |
a66098da | 1594 | } |
a66098da LB |
1595 | } |
1596 | ||
e81cd2d6 | 1597 | return &cmd->header; |
a66098da LB |
1598 | } |
1599 | ||
1600 | /* | |
1601 | * CMD_802_11_GET_STAT. | |
1602 | */ | |
1603 | struct mwl8k_cmd_802_11_get_stat { | |
1604 | struct mwl8k_cmd_pkt header; | |
a66098da LB |
1605 | __le32 stats[64]; |
1606 | } __attribute__((packed)); | |
1607 | ||
1608 | #define MWL8K_STAT_ACK_FAILURE 9 | |
1609 | #define MWL8K_STAT_RTS_FAILURE 12 | |
1610 | #define MWL8K_STAT_FCS_ERROR 24 | |
1611 | #define MWL8K_STAT_RTS_SUCCESS 11 | |
1612 | ||
1613 | static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw *hw, | |
1614 | struct ieee80211_low_level_stats *stats) | |
1615 | { | |
1616 | struct mwl8k_cmd_802_11_get_stat *cmd; | |
1617 | int rc; | |
1618 | ||
1619 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1620 | if (cmd == NULL) | |
1621 | return -ENOMEM; | |
1622 | ||
1623 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); | |
1624 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
1625 | |
1626 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1627 | if (!rc) { | |
1628 | stats->dot11ACKFailureCount = | |
1629 | le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); | |
1630 | stats->dot11RTSFailureCount = | |
1631 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); | |
1632 | stats->dot11FCSErrorCount = | |
1633 | le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); | |
1634 | stats->dot11RTSSuccessCount = | |
1635 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); | |
1636 | } | |
1637 | kfree(cmd); | |
1638 | ||
1639 | return rc; | |
1640 | } | |
1641 | ||
1642 | /* | |
1643 | * CMD_802_11_RADIO_CONTROL. | |
1644 | */ | |
1645 | struct mwl8k_cmd_802_11_radio_control { | |
1646 | struct mwl8k_cmd_pkt header; | |
1647 | __le16 action; | |
1648 | __le16 control; | |
1649 | __le16 radio_on; | |
1650 | } __attribute__((packed)); | |
1651 | ||
c46563b7 LB |
1652 | static int |
1653 | mwl8k_cmd_802_11_radio_control(struct ieee80211_hw *hw, bool enable, bool force) | |
a66098da LB |
1654 | { |
1655 | struct mwl8k_priv *priv = hw->priv; | |
1656 | struct mwl8k_cmd_802_11_radio_control *cmd; | |
1657 | int rc; | |
1658 | ||
c46563b7 | 1659 | if (enable == priv->radio_on && !force) |
a66098da LB |
1660 | return 0; |
1661 | ||
a66098da LB |
1662 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
1663 | if (cmd == NULL) | |
1664 | return -ENOMEM; | |
1665 | ||
1666 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); | |
1667 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1668 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
68ce3884 | 1669 | cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1); |
a66098da LB |
1670 | cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); |
1671 | ||
1672 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1673 | kfree(cmd); | |
1674 | ||
1675 | if (!rc) | |
c46563b7 | 1676 | priv->radio_on = enable; |
a66098da LB |
1677 | |
1678 | return rc; | |
1679 | } | |
1680 | ||
c46563b7 LB |
1681 | static int mwl8k_cmd_802_11_radio_disable(struct ieee80211_hw *hw) |
1682 | { | |
1683 | return mwl8k_cmd_802_11_radio_control(hw, 0, 0); | |
1684 | } | |
1685 | ||
1686 | static int mwl8k_cmd_802_11_radio_enable(struct ieee80211_hw *hw) | |
1687 | { | |
1688 | return mwl8k_cmd_802_11_radio_control(hw, 1, 0); | |
1689 | } | |
1690 | ||
a66098da LB |
1691 | static int |
1692 | mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) | |
1693 | { | |
1694 | struct mwl8k_priv *priv; | |
1695 | ||
1696 | if (hw == NULL || hw->priv == NULL) | |
1697 | return -EINVAL; | |
1698 | priv = hw->priv; | |
1699 | ||
68ce3884 | 1700 | priv->radio_short_preamble = short_preamble; |
a66098da | 1701 | |
c46563b7 | 1702 | return mwl8k_cmd_802_11_radio_control(hw, 1, 1); |
a66098da LB |
1703 | } |
1704 | ||
1705 | /* | |
1706 | * CMD_802_11_RF_TX_POWER. | |
1707 | */ | |
1708 | #define MWL8K_TX_POWER_LEVEL_TOTAL 8 | |
1709 | ||
1710 | struct mwl8k_cmd_802_11_rf_tx_power { | |
1711 | struct mwl8k_cmd_pkt header; | |
1712 | __le16 action; | |
1713 | __le16 support_level; | |
1714 | __le16 current_level; | |
1715 | __le16 reserved; | |
1716 | __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; | |
1717 | } __attribute__((packed)); | |
1718 | ||
1719 | static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw *hw, int dBm) | |
1720 | { | |
1721 | struct mwl8k_cmd_802_11_rf_tx_power *cmd; | |
1722 | int rc; | |
1723 | ||
1724 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1725 | if (cmd == NULL) | |
1726 | return -ENOMEM; | |
1727 | ||
1728 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); | |
1729 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1730 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1731 | cmd->support_level = cpu_to_le16(dBm); | |
1732 | ||
1733 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1734 | kfree(cmd); | |
1735 | ||
1736 | return rc; | |
1737 | } | |
1738 | ||
1739 | /* | |
1740 | * CMD_SET_PRE_SCAN. | |
1741 | */ | |
1742 | struct mwl8k_cmd_set_pre_scan { | |
1743 | struct mwl8k_cmd_pkt header; | |
1744 | } __attribute__((packed)); | |
1745 | ||
1746 | static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) | |
1747 | { | |
1748 | struct mwl8k_cmd_set_pre_scan *cmd; | |
1749 | int rc; | |
1750 | ||
1751 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1752 | if (cmd == NULL) | |
1753 | return -ENOMEM; | |
1754 | ||
1755 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); | |
1756 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1757 | ||
1758 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1759 | kfree(cmd); | |
1760 | ||
1761 | return rc; | |
1762 | } | |
1763 | ||
1764 | /* | |
1765 | * CMD_SET_POST_SCAN. | |
1766 | */ | |
1767 | struct mwl8k_cmd_set_post_scan { | |
1768 | struct mwl8k_cmd_pkt header; | |
1769 | __le32 isibss; | |
d89173f2 | 1770 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
1771 | } __attribute__((packed)); |
1772 | ||
1773 | static int | |
ce9e2e1b | 1774 | mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac) |
a66098da LB |
1775 | { |
1776 | struct mwl8k_cmd_set_post_scan *cmd; | |
1777 | int rc; | |
1778 | ||
1779 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1780 | if (cmd == NULL) | |
1781 | return -ENOMEM; | |
1782 | ||
1783 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); | |
1784 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1785 | cmd->isibss = 0; | |
d89173f2 | 1786 | memcpy(cmd->bssid, mac, ETH_ALEN); |
a66098da LB |
1787 | |
1788 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1789 | kfree(cmd); | |
1790 | ||
1791 | return rc; | |
1792 | } | |
1793 | ||
1794 | /* | |
1795 | * CMD_SET_RF_CHANNEL. | |
1796 | */ | |
1797 | struct mwl8k_cmd_set_rf_channel { | |
1798 | struct mwl8k_cmd_pkt header; | |
1799 | __le16 action; | |
1800 | __u8 current_channel; | |
1801 | __le32 channel_flags; | |
1802 | } __attribute__((packed)); | |
1803 | ||
1804 | static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, | |
1805 | struct ieee80211_channel *channel) | |
1806 | { | |
1807 | struct mwl8k_cmd_set_rf_channel *cmd; | |
1808 | int rc; | |
1809 | ||
1810 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1811 | if (cmd == NULL) | |
1812 | return -ENOMEM; | |
1813 | ||
1814 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); | |
1815 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1816 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1817 | cmd->current_channel = channel->hw_value; | |
1818 | if (channel->band == IEEE80211_BAND_2GHZ) | |
1819 | cmd->channel_flags = cpu_to_le32(0x00000081); | |
1820 | else | |
1821 | cmd->channel_flags = cpu_to_le32(0x00000000); | |
1822 | ||
1823 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1824 | kfree(cmd); | |
1825 | ||
1826 | return rc; | |
1827 | } | |
1828 | ||
1829 | /* | |
1830 | * CMD_SET_SLOT. | |
1831 | */ | |
1832 | struct mwl8k_cmd_set_slot { | |
1833 | struct mwl8k_cmd_pkt header; | |
1834 | __le16 action; | |
1835 | __u8 short_slot; | |
1836 | } __attribute__((packed)); | |
1837 | ||
5539bb51 | 1838 | static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time) |
a66098da LB |
1839 | { |
1840 | struct mwl8k_cmd_set_slot *cmd; | |
1841 | int rc; | |
1842 | ||
1843 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1844 | if (cmd == NULL) | |
1845 | return -ENOMEM; | |
1846 | ||
1847 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); | |
1848 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1849 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
5539bb51 | 1850 | cmd->short_slot = short_slot_time; |
a66098da LB |
1851 | |
1852 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1853 | kfree(cmd); | |
1854 | ||
1855 | return rc; | |
1856 | } | |
1857 | ||
1858 | /* | |
1859 | * CMD_MIMO_CONFIG. | |
1860 | */ | |
1861 | struct mwl8k_cmd_mimo_config { | |
1862 | struct mwl8k_cmd_pkt header; | |
1863 | __le32 action; | |
1864 | __u8 rx_antenna_map; | |
1865 | __u8 tx_antenna_map; | |
1866 | } __attribute__((packed)); | |
1867 | ||
1868 | static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) | |
1869 | { | |
1870 | struct mwl8k_cmd_mimo_config *cmd; | |
1871 | int rc; | |
1872 | ||
1873 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1874 | if (cmd == NULL) | |
1875 | return -ENOMEM; | |
1876 | ||
1877 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); | |
1878 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1879 | cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); | |
1880 | cmd->rx_antenna_map = rx; | |
1881 | cmd->tx_antenna_map = tx; | |
1882 | ||
1883 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1884 | kfree(cmd); | |
1885 | ||
1886 | return rc; | |
1887 | } | |
1888 | ||
1889 | /* | |
1890 | * CMD_ENABLE_SNIFFER. | |
1891 | */ | |
1892 | struct mwl8k_cmd_enable_sniffer { | |
1893 | struct mwl8k_cmd_pkt header; | |
1894 | __le32 action; | |
1895 | } __attribute__((packed)); | |
1896 | ||
1897 | static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) | |
1898 | { | |
1899 | struct mwl8k_cmd_enable_sniffer *cmd; | |
1900 | int rc; | |
1901 | ||
1902 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1903 | if (cmd == NULL) | |
1904 | return -ENOMEM; | |
1905 | ||
1906 | cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); | |
1907 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 1908 | cmd->action = cpu_to_le32(!!enable); |
a66098da LB |
1909 | |
1910 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1911 | kfree(cmd); | |
1912 | ||
1913 | return rc; | |
1914 | } | |
1915 | ||
32060e1b LB |
1916 | /* |
1917 | * CMD_SET_MAC_ADDR. | |
1918 | */ | |
1919 | struct mwl8k_cmd_set_mac_addr { | |
1920 | struct mwl8k_cmd_pkt header; | |
1921 | __u8 mac_addr[ETH_ALEN]; | |
1922 | } __attribute__((packed)); | |
1923 | ||
1924 | static int mwl8k_set_mac_addr(struct ieee80211_hw *hw, u8 *mac) | |
1925 | { | |
1926 | struct mwl8k_cmd_set_mac_addr *cmd; | |
1927 | int rc; | |
1928 | ||
1929 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1930 | if (cmd == NULL) | |
1931 | return -ENOMEM; | |
1932 | ||
1933 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR); | |
1934 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1935 | memcpy(cmd->mac_addr, mac, ETH_ALEN); | |
1936 | ||
1937 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1938 | kfree(cmd); | |
1939 | ||
1940 | return rc; | |
1941 | } | |
1942 | ||
1943 | ||
a66098da | 1944 | /* |
ce9e2e1b | 1945 | * CMD_SET_RATEADAPT_MODE. |
a66098da LB |
1946 | */ |
1947 | struct mwl8k_cmd_set_rate_adapt_mode { | |
1948 | struct mwl8k_cmd_pkt header; | |
1949 | __le16 action; | |
1950 | __le16 mode; | |
1951 | } __attribute__((packed)); | |
1952 | ||
1953 | static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode) | |
1954 | { | |
1955 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
1956 | int rc; | |
1957 | ||
1958 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1959 | if (cmd == NULL) | |
1960 | return -ENOMEM; | |
1961 | ||
1962 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
1963 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1964 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1965 | cmd->mode = cpu_to_le16(mode); | |
1966 | ||
1967 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1968 | kfree(cmd); | |
1969 | ||
1970 | return rc; | |
1971 | } | |
1972 | ||
1973 | /* | |
1974 | * CMD_SET_WMM_MODE. | |
1975 | */ | |
1976 | struct mwl8k_cmd_set_wmm { | |
1977 | struct mwl8k_cmd_pkt header; | |
1978 | __le16 action; | |
1979 | } __attribute__((packed)); | |
1980 | ||
1981 | static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable) | |
1982 | { | |
1983 | struct mwl8k_priv *priv = hw->priv; | |
1984 | struct mwl8k_cmd_set_wmm *cmd; | |
1985 | int rc; | |
1986 | ||
1987 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1988 | if (cmd == NULL) | |
1989 | return -ENOMEM; | |
1990 | ||
1991 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); | |
1992 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
0439b1f5 | 1993 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
1994 | |
1995 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1996 | kfree(cmd); | |
1997 | ||
1998 | if (!rc) | |
0439b1f5 | 1999 | priv->wmm_enabled = enable; |
a66098da LB |
2000 | |
2001 | return rc; | |
2002 | } | |
2003 | ||
2004 | /* | |
2005 | * CMD_SET_RTS_THRESHOLD. | |
2006 | */ | |
2007 | struct mwl8k_cmd_rts_threshold { | |
2008 | struct mwl8k_cmd_pkt header; | |
2009 | __le16 action; | |
2010 | __le16 threshold; | |
2011 | } __attribute__((packed)); | |
2012 | ||
2013 | static int mwl8k_rts_threshold(struct ieee80211_hw *hw, | |
733d3067 | 2014 | u16 action, u16 threshold) |
a66098da LB |
2015 | { |
2016 | struct mwl8k_cmd_rts_threshold *cmd; | |
2017 | int rc; | |
2018 | ||
2019 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2020 | if (cmd == NULL) | |
2021 | return -ENOMEM; | |
2022 | ||
2023 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); | |
2024 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2025 | cmd->action = cpu_to_le16(action); | |
733d3067 | 2026 | cmd->threshold = cpu_to_le16(threshold); |
a66098da LB |
2027 | |
2028 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2029 | kfree(cmd); | |
2030 | ||
2031 | return rc; | |
2032 | } | |
2033 | ||
2034 | /* | |
2035 | * CMD_SET_EDCA_PARAMS. | |
2036 | */ | |
2037 | struct mwl8k_cmd_set_edca_params { | |
2038 | struct mwl8k_cmd_pkt header; | |
2039 | ||
2040 | /* See MWL8K_SET_EDCA_XXX below */ | |
2041 | __le16 action; | |
2042 | ||
2043 | /* TX opportunity in units of 32 us */ | |
2044 | __le16 txop; | |
2045 | ||
2046 | /* Log exponent of max contention period: 0...15*/ | |
2047 | __u8 log_cw_max; | |
2048 | ||
2049 | /* Log exponent of min contention period: 0...15 */ | |
2050 | __u8 log_cw_min; | |
2051 | ||
2052 | /* Adaptive interframe spacing in units of 32us */ | |
2053 | __u8 aifs; | |
2054 | ||
2055 | /* TX queue to configure */ | |
2056 | __u8 txq; | |
2057 | } __attribute__((packed)); | |
2058 | ||
a66098da LB |
2059 | #define MWL8K_SET_EDCA_CW 0x01 |
2060 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
2061 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
2062 | ||
2063 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
2064 | MWL8K_SET_EDCA_TXOP | \ | |
2065 | MWL8K_SET_EDCA_AIFS) | |
2066 | ||
2067 | static int | |
2068 | mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, | |
2069 | __u16 cw_min, __u16 cw_max, | |
2070 | __u8 aifs, __u16 txop) | |
2071 | { | |
2072 | struct mwl8k_cmd_set_edca_params *cmd; | |
a66098da LB |
2073 | int rc; |
2074 | ||
2075 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2076 | if (cmd == NULL) | |
2077 | return -ENOMEM; | |
2078 | ||
22995b24 LB |
2079 | /* |
2080 | * Queues 0 (BE) and 1 (BK) are swapped in hardware for | |
2081 | * this call. | |
2082 | */ | |
2083 | qnum ^= !(qnum >> 1); | |
2084 | ||
a66098da LB |
2085 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
2086 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2087 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
2088 | cmd->txop = cpu_to_le16(txop); | |
ce9e2e1b LB |
2089 | cmd->log_cw_max = (u8)ilog2(cw_max + 1); |
2090 | cmd->log_cw_min = (u8)ilog2(cw_min + 1); | |
a66098da LB |
2091 | cmd->aifs = aifs; |
2092 | cmd->txq = qnum; | |
2093 | ||
2094 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2095 | kfree(cmd); | |
2096 | ||
2097 | return rc; | |
2098 | } | |
2099 | ||
2100 | /* | |
2101 | * CMD_FINALIZE_JOIN. | |
2102 | */ | |
2103 | ||
2104 | /* FJ beacon buffer size is compiled into the firmware. */ | |
2105 | #define MWL8K_FJ_BEACON_MAXLEN 128 | |
2106 | ||
2107 | struct mwl8k_cmd_finalize_join { | |
2108 | struct mwl8k_cmd_pkt header; | |
2109 | __le32 sleep_interval; /* Number of beacon periods to sleep */ | |
2110 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
2111 | } __attribute__((packed)); | |
2112 | ||
2113 | static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, | |
2114 | __u16 framelen, __u16 dtim) | |
2115 | { | |
2116 | struct mwl8k_cmd_finalize_join *cmd; | |
2117 | struct ieee80211_mgmt *payload = frame; | |
2118 | u16 hdrlen; | |
2119 | u32 payload_len; | |
2120 | int rc; | |
2121 | ||
2122 | if (frame == NULL) | |
2123 | return -EINVAL; | |
2124 | ||
2125 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2126 | if (cmd == NULL) | |
2127 | return -ENOMEM; | |
2128 | ||
2129 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); | |
2130 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
ce9e2e1b | 2131 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
a66098da LB |
2132 | |
2133 | hdrlen = ieee80211_hdrlen(payload->frame_control); | |
2134 | ||
2135 | payload_len = framelen > hdrlen ? framelen - hdrlen : 0; | |
2136 | ||
2137 | /* XXX TBD Might just have to abort and return an error */ | |
2138 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2139 | printk(KERN_ERR "%s(): WARNING: Incomplete beacon " | |
c2c357ce LB |
2140 | "sent to firmware. Sz=%u MAX=%u\n", __func__, |
2141 | payload_len, MWL8K_FJ_BEACON_MAXLEN); | |
a66098da | 2142 | |
ce9e2e1b LB |
2143 | if (payload_len > MWL8K_FJ_BEACON_MAXLEN) |
2144 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
a66098da LB |
2145 | |
2146 | if (payload && payload_len) | |
2147 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
2148 | ||
2149 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2150 | kfree(cmd); | |
2151 | return rc; | |
2152 | } | |
2153 | ||
2154 | /* | |
2155 | * CMD_UPDATE_STADB. | |
2156 | */ | |
2157 | struct mwl8k_cmd_update_sta_db { | |
2158 | struct mwl8k_cmd_pkt header; | |
2159 | ||
2160 | /* See STADB_ACTION_TYPE */ | |
2161 | __le32 action; | |
2162 | ||
2163 | /* Peer MAC address */ | |
d89173f2 | 2164 | __u8 peer_addr[ETH_ALEN]; |
a66098da LB |
2165 | |
2166 | __le32 reserved; | |
2167 | ||
2168 | /* Peer info - valid during add/update. */ | |
2169 | struct peer_capability_info peer_info; | |
2170 | } __attribute__((packed)); | |
2171 | ||
2172 | static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, | |
2173 | struct ieee80211_vif *vif, __u32 action) | |
2174 | { | |
2175 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2176 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2177 | struct mwl8k_cmd_update_sta_db *cmd; | |
2178 | struct peer_capability_info *peer_info; | |
2179 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
a66098da LB |
2180 | int rc; |
2181 | __u8 count, *rates; | |
2182 | ||
2183 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2184 | if (cmd == NULL) | |
2185 | return -ENOMEM; | |
2186 | ||
2187 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
2188 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2189 | ||
2190 | cmd->action = cpu_to_le32(action); | |
2191 | peer_info = &cmd->peer_info; | |
d89173f2 | 2192 | memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN); |
a66098da LB |
2193 | |
2194 | switch (action) { | |
2195 | case MWL8K_STA_DB_ADD_ENTRY: | |
2196 | case MWL8K_STA_DB_MODIFY_ENTRY: | |
2197 | /* Build peer_info block */ | |
2198 | peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
2199 | peer_info->basic_caps = cpu_to_le16(info->assoc_capability); | |
2200 | peer_info->interop = 1; | |
2201 | peer_info->amsdu_enabled = 0; | |
2202 | ||
2203 | rates = peer_info->legacy_rates; | |
ce9e2e1b | 2204 | for (count = 0; count < mv_vif->legacy_nrates; count++) |
a66098da LB |
2205 | rates[count] = bitrates[count].hw_value; |
2206 | ||
2207 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2208 | if (rc == 0) | |
2209 | mv_vif->peer_id = peer_info->station_id; | |
2210 | ||
2211 | break; | |
2212 | ||
2213 | case MWL8K_STA_DB_DEL_ENTRY: | |
2214 | case MWL8K_STA_DB_FLUSH: | |
2215 | default: | |
2216 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2217 | if (rc == 0) | |
2218 | mv_vif->peer_id = 0; | |
2219 | break; | |
2220 | } | |
2221 | kfree(cmd); | |
2222 | ||
2223 | return rc; | |
2224 | } | |
2225 | ||
2226 | /* | |
2227 | * CMD_SET_AID. | |
2228 | */ | |
a66098da LB |
2229 | #define MWL8K_RATE_INDEX_MAX_ARRAY 14 |
2230 | ||
2231 | #define MWL8K_FRAME_PROT_DISABLED 0x00 | |
2232 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2233 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2234 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da LB |
2235 | |
2236 | struct mwl8k_cmd_update_set_aid { | |
2237 | struct mwl8k_cmd_pkt header; | |
2238 | __le16 aid; | |
2239 | ||
2240 | /* AP's MAC address (BSSID) */ | |
d89173f2 | 2241 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
2242 | __le16 protection_mode; |
2243 | __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2244 | } __attribute__((packed)); | |
2245 | ||
2246 | static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, | |
2247 | struct ieee80211_vif *vif) | |
2248 | { | |
2249 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2250 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2251 | struct mwl8k_cmd_update_set_aid *cmd; | |
2252 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2253 | int count; | |
2254 | u16 prot_mode; | |
2255 | int rc; | |
2256 | ||
2257 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2258 | if (cmd == NULL) | |
2259 | return -ENOMEM; | |
2260 | ||
2261 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); | |
2262 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2263 | cmd->aid = cpu_to_le16(info->aid); | |
2264 | ||
d89173f2 | 2265 | memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); |
a66098da | 2266 | |
a66098da LB |
2267 | if (info->use_cts_prot) { |
2268 | prot_mode = MWL8K_FRAME_PROT_11G; | |
2269 | } else { | |
9ed6bcce | 2270 | switch (info->ht_operation_mode & |
a66098da LB |
2271 | IEEE80211_HT_OP_MODE_PROTECTION) { |
2272 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2273 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2274 | break; | |
2275 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2276 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2277 | break; | |
2278 | default: | |
2279 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2280 | break; | |
2281 | } | |
2282 | } | |
a66098da LB |
2283 | cmd->protection_mode = cpu_to_le16(prot_mode); |
2284 | ||
2285 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2286 | cmd->supp_rates[count] = bitrates[count].hw_value; | |
2287 | ||
2288 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2289 | kfree(cmd); | |
2290 | ||
2291 | return rc; | |
2292 | } | |
2293 | ||
2294 | /* | |
2295 | * CMD_SET_RATE. | |
2296 | */ | |
2297 | struct mwl8k_cmd_update_rateset { | |
2298 | struct mwl8k_cmd_pkt header; | |
2299 | __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; | |
2300 | ||
2301 | /* Bitmap for supported MCS codes. */ | |
2302 | __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2303 | __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; | |
2304 | } __attribute__((packed)); | |
2305 | ||
2306 | static int mwl8k_update_rateset(struct ieee80211_hw *hw, | |
2307 | struct ieee80211_vif *vif) | |
2308 | { | |
2309 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2310 | struct mwl8k_cmd_update_rateset *cmd; | |
2311 | struct ieee80211_rate *bitrates = mv_vif->legacy_rates; | |
2312 | int count; | |
2313 | int rc; | |
2314 | ||
2315 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2316 | if (cmd == NULL) | |
2317 | return -ENOMEM; | |
2318 | ||
2319 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); | |
2320 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2321 | ||
2322 | for (count = 0; count < mv_vif->legacy_nrates; count++) | |
2323 | cmd->legacy_rates[count] = bitrates[count].hw_value; | |
2324 | ||
2325 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2326 | kfree(cmd); | |
2327 | ||
2328 | return rc; | |
2329 | } | |
2330 | ||
2331 | /* | |
2332 | * CMD_USE_FIXED_RATE. | |
2333 | */ | |
2334 | #define MWL8K_RATE_TABLE_SIZE 8 | |
2335 | #define MWL8K_UCAST_RATE 0 | |
a66098da LB |
2336 | #define MWL8K_USE_AUTO_RATE 0x0002 |
2337 | ||
2338 | struct mwl8k_rate_entry { | |
2339 | /* Set to 1 if HT rate, 0 if legacy. */ | |
2340 | __le32 is_ht_rate; | |
2341 | ||
2342 | /* Set to 1 to use retry_count field. */ | |
2343 | __le32 enable_retry; | |
2344 | ||
2345 | /* Specified legacy rate or MCS. */ | |
2346 | __le32 rate; | |
2347 | ||
2348 | /* Number of allowed retries. */ | |
2349 | __le32 retry_count; | |
2350 | } __attribute__((packed)); | |
2351 | ||
2352 | struct mwl8k_rate_table { | |
2353 | /* 1 to allow specified rate and below */ | |
2354 | __le32 allow_rate_drop; | |
2355 | __le32 num_rates; | |
2356 | struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; | |
2357 | } __attribute__((packed)); | |
2358 | ||
2359 | struct mwl8k_cmd_use_fixed_rate { | |
2360 | struct mwl8k_cmd_pkt header; | |
2361 | __le32 action; | |
2362 | struct mwl8k_rate_table rate_table; | |
2363 | ||
2364 | /* Unicast, Broadcast or Multicast */ | |
2365 | __le32 rate_type; | |
2366 | __le32 reserved1; | |
2367 | __le32 reserved2; | |
2368 | } __attribute__((packed)); | |
2369 | ||
2370 | static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, | |
2371 | u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) | |
2372 | { | |
2373 | struct mwl8k_cmd_use_fixed_rate *cmd; | |
2374 | int count; | |
2375 | int rc; | |
2376 | ||
2377 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2378 | if (cmd == NULL) | |
2379 | return -ENOMEM; | |
2380 | ||
2381 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
2382 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2383 | ||
2384 | cmd->action = cpu_to_le32(action); | |
2385 | cmd->rate_type = cpu_to_le32(rate_type); | |
2386 | ||
2387 | if (rate_table != NULL) { | |
c2c357ce LB |
2388 | /* |
2389 | * Copy over each field manually so that endian | |
2390 | * conversion can be done. | |
2391 | */ | |
a66098da LB |
2392 | cmd->rate_table.allow_rate_drop = |
2393 | cpu_to_le32(rate_table->allow_rate_drop); | |
2394 | cmd->rate_table.num_rates = | |
2395 | cpu_to_le32(rate_table->num_rates); | |
2396 | ||
2397 | for (count = 0; count < rate_table->num_rates; count++) { | |
2398 | struct mwl8k_rate_entry *dst = | |
2399 | &cmd->rate_table.rate_entry[count]; | |
2400 | struct mwl8k_rate_entry *src = | |
2401 | &rate_table->rate_entry[count]; | |
2402 | ||
2403 | dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); | |
2404 | dst->enable_retry = cpu_to_le32(src->enable_retry); | |
2405 | dst->rate = cpu_to_le32(src->rate); | |
2406 | dst->retry_count = cpu_to_le32(src->retry_count); | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2411 | kfree(cmd); | |
2412 | ||
2413 | return rc; | |
2414 | } | |
2415 | ||
2416 | ||
2417 | /* | |
2418 | * Interrupt handling. | |
2419 | */ | |
2420 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
2421 | { | |
2422 | struct ieee80211_hw *hw = dev_id; | |
2423 | struct mwl8k_priv *priv = hw->priv; | |
2424 | u32 status; | |
2425 | ||
2426 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2427 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2428 | ||
a66098da LB |
2429 | if (!status) |
2430 | return IRQ_NONE; | |
2431 | ||
2432 | if (status & MWL8K_A2H_INT_TX_DONE) | |
2433 | tasklet_schedule(&priv->tx_reclaim_task); | |
2434 | ||
2435 | if (status & MWL8K_A2H_INT_RX_READY) { | |
2436 | while (rxq_process(hw, 0, 1)) | |
2437 | rxq_refill(hw, 0, 1); | |
2438 | } | |
2439 | ||
2440 | if (status & MWL8K_A2H_INT_OPC_DONE) { | |
618952a7 | 2441 | if (priv->hostcmd_wait != NULL) |
a66098da | 2442 | complete(priv->hostcmd_wait); |
a66098da LB |
2443 | } |
2444 | ||
2445 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 2446 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 2447 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 2448 | mwl8k_tx_start(priv); |
a66098da LB |
2449 | } |
2450 | ||
2451 | return IRQ_HANDLED; | |
2452 | } | |
2453 | ||
2454 | ||
2455 | /* | |
2456 | * Core driver operations. | |
2457 | */ | |
2458 | static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
2459 | { | |
2460 | struct mwl8k_priv *priv = hw->priv; | |
2461 | int index = skb_get_queue_mapping(skb); | |
2462 | int rc; | |
2463 | ||
2464 | if (priv->current_channel == NULL) { | |
2465 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
c2c357ce | 2466 | "disabled\n", wiphy_name(hw->wiphy)); |
a66098da LB |
2467 | dev_kfree_skb(skb); |
2468 | return NETDEV_TX_OK; | |
2469 | } | |
2470 | ||
2471 | rc = mwl8k_txq_xmit(hw, index, skb); | |
2472 | ||
2473 | return rc; | |
2474 | } | |
2475 | ||
a66098da LB |
2476 | static int mwl8k_start(struct ieee80211_hw *hw) |
2477 | { | |
a66098da LB |
2478 | struct mwl8k_priv *priv = hw->priv; |
2479 | int rc; | |
2480 | ||
a66098da LB |
2481 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, |
2482 | IRQF_SHARED, MWL8K_NAME, hw); | |
2483 | if (rc) { | |
2484 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2485 | wiphy_name(hw->wiphy)); |
2ec610cb | 2486 | return -EIO; |
a66098da LB |
2487 | } |
2488 | ||
2ec610cb LB |
2489 | /* Enable tx reclaim tasklet */ |
2490 | tasklet_enable(&priv->tx_reclaim_task); | |
2491 | ||
a66098da | 2492 | /* Enable interrupts */ |
c23b5a69 | 2493 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 2494 | |
2ec610cb LB |
2495 | rc = mwl8k_fw_lock(hw); |
2496 | if (!rc) { | |
2497 | rc = mwl8k_cmd_802_11_radio_enable(hw); | |
a66098da | 2498 | |
2ec610cb LB |
2499 | if (!rc) |
2500 | rc = mwl8k_cmd_set_pre_scan(hw); | |
a66098da | 2501 | |
2ec610cb LB |
2502 | if (!rc) |
2503 | rc = mwl8k_cmd_set_post_scan(hw, | |
2504 | "\x00\x00\x00\x00\x00\x00"); | |
2505 | ||
2506 | if (!rc) | |
2507 | rc = mwl8k_cmd_setrateadaptmode(hw, 0); | |
a66098da | 2508 | |
2ec610cb LB |
2509 | if (!rc) |
2510 | rc = mwl8k_set_wmm(hw, 0); | |
a66098da | 2511 | |
2ec610cb LB |
2512 | if (!rc) |
2513 | rc = mwl8k_enable_sniffer(hw, 0); | |
a66098da | 2514 | |
2ec610cb LB |
2515 | mwl8k_fw_unlock(hw); |
2516 | } | |
2517 | ||
2518 | if (rc) { | |
2519 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
2520 | free_irq(priv->pdev->irq, hw); | |
2521 | tasklet_disable(&priv->tx_reclaim_task); | |
2522 | } | |
a66098da LB |
2523 | |
2524 | return rc; | |
2525 | } | |
2526 | ||
a66098da LB |
2527 | static void mwl8k_stop(struct ieee80211_hw *hw) |
2528 | { | |
a66098da LB |
2529 | struct mwl8k_priv *priv = hw->priv; |
2530 | int i; | |
2531 | ||
d3cea0b8 | 2532 | mwl8k_cmd_802_11_radio_disable(hw); |
a66098da LB |
2533 | |
2534 | ieee80211_stop_queues(hw); | |
2535 | ||
a66098da | 2536 | /* Disable interrupts */ |
a66098da | 2537 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2538 | free_irq(priv->pdev->irq, hw); |
2539 | ||
2540 | /* Stop finalize join worker */ | |
2541 | cancel_work_sync(&priv->finalize_join_worker); | |
2542 | if (priv->beacon_skb != NULL) | |
2543 | dev_kfree_skb(priv->beacon_skb); | |
2544 | ||
2545 | /* Stop tx reclaim tasklet */ | |
2546 | tasklet_disable(&priv->tx_reclaim_task); | |
2547 | ||
a66098da LB |
2548 | /* Return all skbs to mac80211 */ |
2549 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2550 | mwl8k_txq_reclaim(hw, i, 1); | |
2551 | } | |
2552 | ||
2553 | static int mwl8k_add_interface(struct ieee80211_hw *hw, | |
2554 | struct ieee80211_if_init_conf *conf) | |
2555 | { | |
2556 | struct mwl8k_priv *priv = hw->priv; | |
2557 | struct mwl8k_vif *mwl8k_vif; | |
2558 | ||
2559 | /* | |
2560 | * We only support one active interface at a time. | |
2561 | */ | |
2562 | if (priv->vif != NULL) | |
2563 | return -EBUSY; | |
2564 | ||
2565 | /* | |
2566 | * We only support managed interfaces for now. | |
2567 | */ | |
240e86ef | 2568 | if (conf->type != NL80211_IFTYPE_STATION) |
a66098da LB |
2569 | return -EINVAL; |
2570 | ||
a43c49a8 LB |
2571 | /* |
2572 | * Reject interface creation if sniffer mode is active, as | |
2573 | * STA operation is mutually exclusive with hardware sniffer | |
2574 | * mode. | |
2575 | */ | |
2576 | if (priv->sniffer_enabled) { | |
2577 | printk(KERN_INFO "%s: unable to create STA " | |
2578 | "interface due to sniffer mode being enabled\n", | |
2579 | wiphy_name(hw->wiphy)); | |
2580 | return -EINVAL; | |
2581 | } | |
2582 | ||
a66098da LB |
2583 | /* Clean out driver private area */ |
2584 | mwl8k_vif = MWL8K_VIF(conf->vif); | |
2585 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); | |
2586 | ||
32060e1b LB |
2587 | /* Set and save the mac address */ |
2588 | mwl8k_set_mac_addr(hw, conf->mac_addr); | |
d89173f2 | 2589 | memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN); |
a66098da LB |
2590 | |
2591 | /* Back pointer to parent config block */ | |
2592 | mwl8k_vif->priv = priv; | |
2593 | ||
2594 | /* Setup initial PHY parameters */ | |
ce9e2e1b | 2595 | memcpy(mwl8k_vif->legacy_rates, |
a66098da LB |
2596 | priv->rates, sizeof(mwl8k_vif->legacy_rates)); |
2597 | mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); | |
2598 | ||
2599 | /* Set Initial sequence number to zero */ | |
2600 | mwl8k_vif->seqno = 0; | |
2601 | ||
2602 | priv->vif = conf->vif; | |
2603 | priv->current_channel = NULL; | |
2604 | ||
2605 | return 0; | |
2606 | } | |
2607 | ||
2608 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
2609 | struct ieee80211_if_init_conf *conf) | |
2610 | { | |
2611 | struct mwl8k_priv *priv = hw->priv; | |
2612 | ||
2613 | if (priv->vif == NULL) | |
2614 | return; | |
2615 | ||
32060e1b LB |
2616 | mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); |
2617 | ||
a66098da LB |
2618 | priv->vif = NULL; |
2619 | } | |
2620 | ||
ee03a932 | 2621 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 2622 | { |
a66098da LB |
2623 | struct ieee80211_conf *conf = &hw->conf; |
2624 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 2625 | int rc; |
a66098da | 2626 | |
7595d67a LB |
2627 | if (conf->flags & IEEE80211_CONF_IDLE) { |
2628 | mwl8k_cmd_802_11_radio_disable(hw); | |
2629 | priv->current_channel = NULL; | |
ee03a932 | 2630 | return 0; |
7595d67a LB |
2631 | } |
2632 | ||
ee03a932 LB |
2633 | rc = mwl8k_fw_lock(hw); |
2634 | if (rc) | |
2635 | return rc; | |
a66098da | 2636 | |
ee03a932 LB |
2637 | rc = mwl8k_cmd_802_11_radio_enable(hw); |
2638 | if (rc) | |
2639 | goto out; | |
a66098da | 2640 | |
ee03a932 LB |
2641 | rc = mwl8k_cmd_set_rf_channel(hw, conf->channel); |
2642 | if (rc) | |
2643 | goto out; | |
2644 | ||
2645 | priv->current_channel = conf->channel; | |
a66098da LB |
2646 | |
2647 | if (conf->power_level > 18) | |
2648 | conf->power_level = 18; | |
ee03a932 LB |
2649 | rc = mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level); |
2650 | if (rc) | |
2651 | goto out; | |
a66098da LB |
2652 | |
2653 | if (mwl8k_cmd_mimo_config(hw, 0x7, 0x7)) | |
2654 | rc = -EINVAL; | |
2655 | ||
ee03a932 LB |
2656 | out: |
2657 | mwl8k_fw_unlock(hw); | |
a66098da | 2658 | |
ee03a932 | 2659 | return rc; |
a66098da LB |
2660 | } |
2661 | ||
3a980d0a LB |
2662 | static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, |
2663 | struct ieee80211_vif *vif, | |
2664 | struct ieee80211_bss_conf *info, | |
2665 | u32 changed) | |
a66098da | 2666 | { |
a66098da LB |
2667 | struct mwl8k_priv *priv = hw->priv; |
2668 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3a980d0a LB |
2669 | int rc; |
2670 | ||
2671 | if (changed & BSS_CHANGED_BSSID) | |
2672 | memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); | |
2673 | ||
2674 | if ((changed & BSS_CHANGED_ASSOC) == 0) | |
2675 | return; | |
a66098da | 2676 | |
a66098da LB |
2677 | priv->capture_beacon = false; |
2678 | ||
3a980d0a | 2679 | rc = mwl8k_fw_lock(hw); |
942457d6 | 2680 | if (rc) |
3a980d0a LB |
2681 | return; |
2682 | ||
a66098da LB |
2683 | if (info->assoc) { |
2684 | memcpy(&mwl8k_vif->bss_info, info, | |
2685 | sizeof(struct ieee80211_bss_conf)); | |
2686 | ||
2687 | /* Install rates */ | |
3a980d0a LB |
2688 | rc = mwl8k_update_rateset(hw, vif); |
2689 | if (rc) | |
2690 | goto out; | |
a66098da LB |
2691 | |
2692 | /* Turn on rate adaptation */ | |
3a980d0a LB |
2693 | rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, |
2694 | MWL8K_UCAST_RATE, NULL); | |
2695 | if (rc) | |
2696 | goto out; | |
a66098da LB |
2697 | |
2698 | /* Set radio preamble */ | |
3a980d0a LB |
2699 | rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble); |
2700 | if (rc) | |
2701 | goto out; | |
a66098da LB |
2702 | |
2703 | /* Set slot time */ | |
3a980d0a LB |
2704 | rc = mwl8k_cmd_set_slot(hw, info->use_short_slot); |
2705 | if (rc) | |
2706 | goto out; | |
a66098da LB |
2707 | |
2708 | /* Update peer rate info */ | |
3a980d0a LB |
2709 | rc = mwl8k_cmd_update_sta_db(hw, vif, |
2710 | MWL8K_STA_DB_MODIFY_ENTRY); | |
2711 | if (rc) | |
2712 | goto out; | |
a66098da LB |
2713 | |
2714 | /* Set AID */ | |
3a980d0a LB |
2715 | rc = mwl8k_cmd_set_aid(hw, vif); |
2716 | if (rc) | |
2717 | goto out; | |
a66098da LB |
2718 | |
2719 | /* | |
2720 | * Finalize the join. Tell rx handler to process | |
2721 | * next beacon from our BSSID. | |
2722 | */ | |
d89173f2 | 2723 | memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN); |
a66098da LB |
2724 | priv->capture_beacon = true; |
2725 | } else { | |
3a980d0a | 2726 | rc = mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY); |
a66098da LB |
2727 | memset(&mwl8k_vif->bss_info, 0, |
2728 | sizeof(struct ieee80211_bss_conf)); | |
d89173f2 | 2729 | memset(mwl8k_vif->bssid, 0, ETH_ALEN); |
a66098da LB |
2730 | } |
2731 | ||
3a980d0a LB |
2732 | out: |
2733 | mwl8k_fw_unlock(hw); | |
a66098da LB |
2734 | } |
2735 | ||
e81cd2d6 LB |
2736 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
2737 | int mc_count, struct dev_addr_list *mclist) | |
2738 | { | |
2739 | struct mwl8k_cmd_pkt *cmd; | |
2740 | ||
447ced07 LB |
2741 | /* |
2742 | * Synthesize and return a command packet that programs the | |
2743 | * hardware multicast address filter. At this point we don't | |
2744 | * know whether FIF_ALLMULTI is being requested, but if it is, | |
2745 | * we'll end up throwing this packet away and creating a new | |
2746 | * one in mwl8k_configure_filter(). | |
2747 | */ | |
2748 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist); | |
e81cd2d6 LB |
2749 | |
2750 | return (unsigned long)cmd; | |
2751 | } | |
2752 | ||
a43c49a8 LB |
2753 | static int |
2754 | mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, | |
2755 | unsigned int changed_flags, | |
2756 | unsigned int *total_flags) | |
2757 | { | |
2758 | struct mwl8k_priv *priv = hw->priv; | |
2759 | ||
2760 | /* | |
2761 | * Hardware sniffer mode is mutually exclusive with STA | |
2762 | * operation, so refuse to enable sniffer mode if a STA | |
2763 | * interface is active. | |
2764 | */ | |
2765 | if (priv->vif != NULL) { | |
2766 | if (net_ratelimit()) | |
2767 | printk(KERN_INFO "%s: not enabling sniffer " | |
2768 | "mode because STA interface is active\n", | |
2769 | wiphy_name(hw->wiphy)); | |
2770 | return 0; | |
2771 | } | |
2772 | ||
2773 | if (!priv->sniffer_enabled) { | |
2774 | if (mwl8k_enable_sniffer(hw, 1)) | |
2775 | return 0; | |
2776 | priv->sniffer_enabled = true; | |
2777 | } | |
2778 | ||
2779 | *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI | | |
2780 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL | | |
2781 | FIF_OTHER_BSS; | |
2782 | ||
2783 | return 1; | |
2784 | } | |
2785 | ||
e6935ea1 LB |
2786 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
2787 | unsigned int changed_flags, | |
2788 | unsigned int *total_flags, | |
2789 | u64 multicast) | |
2790 | { | |
2791 | struct mwl8k_priv *priv = hw->priv; | |
a43c49a8 LB |
2792 | struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast; |
2793 | ||
2794 | /* | |
2795 | * Enable hardware sniffer mode if FIF_CONTROL or | |
2796 | * FIF_OTHER_BSS is requested. | |
2797 | */ | |
2798 | if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) && | |
2799 | mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) { | |
2800 | kfree(cmd); | |
2801 | return; | |
2802 | } | |
a66098da | 2803 | |
e6935ea1 | 2804 | /* Clear unsupported feature flags */ |
447ced07 | 2805 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; |
a66098da | 2806 | |
e6935ea1 LB |
2807 | if (mwl8k_fw_lock(hw)) |
2808 | return; | |
a66098da | 2809 | |
a43c49a8 LB |
2810 | if (priv->sniffer_enabled) { |
2811 | mwl8k_enable_sniffer(hw, 0); | |
2812 | priv->sniffer_enabled = false; | |
2813 | } | |
2814 | ||
e6935ea1 | 2815 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
77165d88 LB |
2816 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { |
2817 | /* | |
2818 | * Disable the BSS filter. | |
2819 | */ | |
e6935ea1 | 2820 | mwl8k_cmd_set_pre_scan(hw); |
77165d88 | 2821 | } else { |
a94cc97e LB |
2822 | u8 *bssid; |
2823 | ||
77165d88 LB |
2824 | /* |
2825 | * Enable the BSS filter. | |
2826 | * | |
2827 | * If there is an active STA interface, use that | |
2828 | * interface's BSSID, otherwise use a dummy one | |
2829 | * (where the OUI part needs to be nonzero for | |
2830 | * the BSSID to be accepted by POST_SCAN). | |
2831 | */ | |
2832 | bssid = "\x01\x00\x00\x00\x00\x00"; | |
a94cc97e LB |
2833 | if (priv->vif != NULL) |
2834 | bssid = MWL8K_VIF(priv->vif)->bssid; | |
2835 | ||
e6935ea1 | 2836 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
2837 | } |
2838 | } | |
2839 | ||
447ced07 LB |
2840 | /* |
2841 | * If FIF_ALLMULTI is being requested, throw away the command | |
2842 | * packet that ->prepare_multicast() built and replace it with | |
2843 | * a command packet that enables reception of all multicast | |
2844 | * packets. | |
2845 | */ | |
2846 | if (*total_flags & FIF_ALLMULTI) { | |
2847 | kfree(cmd); | |
2848 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL); | |
2849 | } | |
2850 | ||
2851 | if (cmd != NULL) { | |
2852 | mwl8k_post_cmd(hw, cmd); | |
2853 | kfree(cmd); | |
e6935ea1 | 2854 | } |
a66098da | 2855 | |
e6935ea1 | 2856 | mwl8k_fw_unlock(hw); |
a66098da LB |
2857 | } |
2858 | ||
a66098da LB |
2859 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2860 | { | |
733d3067 | 2861 | return mwl8k_rts_threshold(hw, MWL8K_CMD_SET, value); |
a66098da LB |
2862 | } |
2863 | ||
a66098da LB |
2864 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
2865 | const struct ieee80211_tx_queue_params *params) | |
2866 | { | |
3e4f542c | 2867 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2868 | int rc; |
a66098da | 2869 | |
3e4f542c LB |
2870 | rc = mwl8k_fw_lock(hw); |
2871 | if (!rc) { | |
2872 | if (!priv->wmm_enabled) | |
2873 | rc = mwl8k_set_wmm(hw, 1); | |
a66098da | 2874 | |
3e4f542c LB |
2875 | if (!rc) |
2876 | rc = mwl8k_set_edca_params(hw, queue, | |
2877 | params->cw_min, | |
2878 | params->cw_max, | |
2879 | params->aifs, | |
2880 | params->txop); | |
2881 | ||
2882 | mwl8k_fw_unlock(hw); | |
a66098da | 2883 | } |
3e4f542c | 2884 | |
a66098da LB |
2885 | return rc; |
2886 | } | |
2887 | ||
2888 | static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, | |
2889 | struct ieee80211_tx_queue_stats *stats) | |
2890 | { | |
2891 | struct mwl8k_priv *priv = hw->priv; | |
2892 | struct mwl8k_tx_queue *txq; | |
2893 | int index; | |
2894 | ||
2895 | spin_lock_bh(&priv->tx_lock); | |
2896 | for (index = 0; index < MWL8K_TX_QUEUES; index++) { | |
2897 | txq = priv->txq + index; | |
45eb400d | 2898 | memcpy(&stats[index], &txq->stats, |
a66098da LB |
2899 | sizeof(struct ieee80211_tx_queue_stats)); |
2900 | } | |
2901 | spin_unlock_bh(&priv->tx_lock); | |
a66098da | 2902 | |
954ef509 | 2903 | return 0; |
a66098da LB |
2904 | } |
2905 | ||
2906 | static int mwl8k_get_stats(struct ieee80211_hw *hw, | |
2907 | struct ieee80211_low_level_stats *stats) | |
2908 | { | |
954ef509 | 2909 | return mwl8k_cmd_802_11_get_stat(hw, stats); |
a66098da LB |
2910 | } |
2911 | ||
2912 | static const struct ieee80211_ops mwl8k_ops = { | |
2913 | .tx = mwl8k_tx, | |
2914 | .start = mwl8k_start, | |
2915 | .stop = mwl8k_stop, | |
2916 | .add_interface = mwl8k_add_interface, | |
2917 | .remove_interface = mwl8k_remove_interface, | |
2918 | .config = mwl8k_config, | |
a66098da | 2919 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 2920 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da LB |
2921 | .configure_filter = mwl8k_configure_filter, |
2922 | .set_rts_threshold = mwl8k_set_rts_threshold, | |
2923 | .conf_tx = mwl8k_conf_tx, | |
2924 | .get_tx_stats = mwl8k_get_tx_stats, | |
2925 | .get_stats = mwl8k_get_stats, | |
2926 | }; | |
2927 | ||
2928 | static void mwl8k_tx_reclaim_handler(unsigned long data) | |
2929 | { | |
2930 | int i; | |
2931 | struct ieee80211_hw *hw = (struct ieee80211_hw *) data; | |
2932 | struct mwl8k_priv *priv = hw->priv; | |
2933 | ||
2934 | spin_lock_bh(&priv->tx_lock); | |
2935 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2936 | mwl8k_txq_reclaim(hw, i, 0); | |
2937 | ||
88de754a | 2938 | if (priv->tx_wait != NULL && !priv->pending_tx_pkts) { |
ce9e2e1b LB |
2939 | complete(priv->tx_wait); |
2940 | priv->tx_wait = NULL; | |
a66098da LB |
2941 | } |
2942 | spin_unlock_bh(&priv->tx_lock); | |
2943 | } | |
2944 | ||
2945 | static void mwl8k_finalize_join_worker(struct work_struct *work) | |
2946 | { | |
2947 | struct mwl8k_priv *priv = | |
2948 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
2949 | struct sk_buff *skb = priv->beacon_skb; | |
ce9e2e1b | 2950 | u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; |
a66098da LB |
2951 | |
2952 | mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); | |
2953 | dev_kfree_skb(skb); | |
2954 | ||
2955 | priv->beacon_skb = NULL; | |
2956 | } | |
2957 | ||
45a390dd | 2958 | static struct mwl8k_device_info di_8687 = { |
a74b295e LB |
2959 | .part_name = "88w8687", |
2960 | .helper_image = "mwl8k/helper_8687.fw", | |
2961 | .fw_image = "mwl8k/fmimage_8687.fw", | |
45a390dd LB |
2962 | }; |
2963 | ||
2964 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { | |
2965 | { | |
2966 | PCI_VDEVICE(MARVELL, 0x2a2b), | |
2967 | .driver_data = (unsigned long)&di_8687, | |
2968 | }, { | |
2969 | PCI_VDEVICE(MARVELL, 0x2a30), | |
2970 | .driver_data = (unsigned long)&di_8687, | |
2971 | }, { | |
2972 | }, | |
2973 | }; | |
2974 | MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table); | |
2975 | ||
a66098da LB |
2976 | static int __devinit mwl8k_probe(struct pci_dev *pdev, |
2977 | const struct pci_device_id *id) | |
2978 | { | |
2aa7b01f | 2979 | static int printed_version = 0; |
a66098da LB |
2980 | struct ieee80211_hw *hw; |
2981 | struct mwl8k_priv *priv; | |
a66098da LB |
2982 | int rc; |
2983 | int i; | |
2aa7b01f LB |
2984 | |
2985 | if (!printed_version) { | |
2986 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
2987 | printed_version = 1; | |
2988 | } | |
a66098da LB |
2989 | |
2990 | rc = pci_enable_device(pdev); | |
2991 | if (rc) { | |
2992 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
2993 | MWL8K_NAME); | |
2994 | return rc; | |
2995 | } | |
2996 | ||
2997 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
2998 | if (rc) { | |
2999 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
3000 | MWL8K_NAME); | |
3001 | return rc; | |
3002 | } | |
3003 | ||
3004 | pci_set_master(pdev); | |
3005 | ||
3006 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
3007 | if (hw == NULL) { | |
3008 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
3009 | rc = -ENOMEM; | |
3010 | goto err_free_reg; | |
3011 | } | |
3012 | ||
3013 | priv = hw->priv; | |
3014 | priv->hw = hw; | |
3015 | priv->pdev = pdev; | |
45a390dd | 3016 | priv->device_info = (void *)id->driver_data; |
a43c49a8 | 3017 | priv->sniffer_enabled = false; |
0439b1f5 | 3018 | priv->wmm_enabled = false; |
a66098da | 3019 | priv->pending_tx_pkts = 0; |
a66098da | 3020 | |
a66098da LB |
3021 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3022 | pci_set_drvdata(pdev, hw); | |
3023 | ||
5b9482dd LB |
3024 | priv->sram = pci_iomap(pdev, 0, 0x10000); |
3025 | if (priv->sram == NULL) { | |
3026 | printk(KERN_ERR "%s: Cannot map device SRAM\n", | |
c2c357ce | 3027 | wiphy_name(hw->wiphy)); |
a66098da LB |
3028 | goto err_iounmap; |
3029 | } | |
3030 | ||
5b9482dd LB |
3031 | /* |
3032 | * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. | |
3033 | * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. | |
3034 | */ | |
3035 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
3036 | if (priv->regs == NULL) { | |
3037 | priv->regs = pci_iomap(pdev, 2, 0x10000); | |
3038 | if (priv->regs == NULL) { | |
3039 | printk(KERN_ERR "%s: Cannot map device registers\n", | |
3040 | wiphy_name(hw->wiphy)); | |
3041 | goto err_iounmap; | |
3042 | } | |
3043 | } | |
3044 | ||
a66098da LB |
3045 | memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); |
3046 | priv->band.band = IEEE80211_BAND_2GHZ; | |
3047 | priv->band.channels = priv->channels; | |
3048 | priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); | |
3049 | priv->band.bitrates = priv->rates; | |
3050 | priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); | |
3051 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
3052 | ||
3053 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); | |
3054 | memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); | |
3055 | ||
3056 | /* | |
3057 | * Extra headroom is the size of the required DMA header | |
3058 | * minus the size of the smallest 802.11 frame (CTS frame). | |
3059 | */ | |
3060 | hw->extra_tx_headroom = | |
3061 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
3062 | ||
3063 | hw->channel_change_time = 10; | |
3064 | ||
3065 | hw->queues = MWL8K_TX_QUEUES; | |
3066 | ||
240e86ef | 3067 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
a66098da LB |
3068 | |
3069 | /* Set rssi and noise values to dBm */ | |
ce9e2e1b | 3070 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; |
a66098da LB |
3071 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
3072 | priv->vif = NULL; | |
3073 | ||
3074 | /* Set default radio state and preamble */ | |
c46563b7 | 3075 | priv->radio_on = 0; |
68ce3884 | 3076 | priv->radio_short_preamble = 0; |
a66098da LB |
3077 | |
3078 | /* Finalize join worker */ | |
3079 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
3080 | ||
3081 | /* TX reclaim tasklet */ | |
3082 | tasklet_init(&priv->tx_reclaim_task, | |
3083 | mwl8k_tx_reclaim_handler, (unsigned long)hw); | |
3084 | tasklet_disable(&priv->tx_reclaim_task); | |
3085 | ||
a66098da LB |
3086 | /* Power management cookie */ |
3087 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
3088 | if (priv->cookie == NULL) | |
3089 | goto err_iounmap; | |
3090 | ||
3091 | rc = mwl8k_rxq_init(hw, 0); | |
3092 | if (rc) | |
3093 | goto err_iounmap; | |
3094 | rxq_refill(hw, 0, INT_MAX); | |
3095 | ||
618952a7 LB |
3096 | mutex_init(&priv->fw_mutex); |
3097 | priv->fw_mutex_owner = NULL; | |
3098 | priv->fw_mutex_depth = 0; | |
618952a7 LB |
3099 | priv->hostcmd_wait = NULL; |
3100 | ||
a66098da LB |
3101 | spin_lock_init(&priv->tx_lock); |
3102 | ||
88de754a LB |
3103 | priv->tx_wait = NULL; |
3104 | ||
a66098da LB |
3105 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { |
3106 | rc = mwl8k_txq_init(hw, i); | |
3107 | if (rc) | |
3108 | goto err_free_queues; | |
3109 | } | |
3110 | ||
3111 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 3112 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3113 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
3114 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); | |
3115 | ||
3116 | rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, | |
3117 | IRQF_SHARED, MWL8K_NAME, hw); | |
3118 | if (rc) { | |
3119 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 3120 | wiphy_name(hw->wiphy)); |
a66098da LB |
3121 | goto err_free_queues; |
3122 | } | |
3123 | ||
3124 | /* Reset firmware and hardware */ | |
3125 | mwl8k_hw_reset(priv); | |
3126 | ||
3127 | /* Ask userland hotplug daemon for the device firmware */ | |
45a390dd | 3128 | rc = mwl8k_request_firmware(priv); |
a66098da | 3129 | if (rc) { |
c2c357ce LB |
3130 | printk(KERN_ERR "%s: Firmware files not found\n", |
3131 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3132 | goto err_free_irq; |
3133 | } | |
3134 | ||
3135 | /* Load firmware into hardware */ | |
c2c357ce | 3136 | rc = mwl8k_load_firmware(hw); |
a66098da | 3137 | if (rc) { |
c2c357ce LB |
3138 | printk(KERN_ERR "%s: Cannot start firmware\n", |
3139 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3140 | goto err_stop_firmware; |
3141 | } | |
3142 | ||
3143 | /* Reclaim memory once firmware is successfully loaded */ | |
3144 | mwl8k_release_firmware(priv); | |
3145 | ||
3146 | /* | |
3147 | * Temporarily enable interrupts. Initial firmware host | |
3148 | * commands use interrupts and avoids polling. Disable | |
3149 | * interrupts when done. | |
3150 | */ | |
c23b5a69 | 3151 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3152 | |
3153 | /* Get config data, mac addrs etc */ | |
3154 | rc = mwl8k_cmd_get_hw_spec(hw); | |
3155 | if (rc) { | |
c2c357ce LB |
3156 | printk(KERN_ERR "%s: Cannot initialise firmware\n", |
3157 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3158 | goto err_stop_firmware; |
3159 | } | |
3160 | ||
3161 | /* Turn radio off */ | |
c46563b7 | 3162 | rc = mwl8k_cmd_802_11_radio_disable(hw); |
a66098da | 3163 | if (rc) { |
c2c357ce | 3164 | printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy)); |
a66098da LB |
3165 | goto err_stop_firmware; |
3166 | } | |
3167 | ||
32060e1b LB |
3168 | /* Clear MAC address */ |
3169 | rc = mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); | |
3170 | if (rc) { | |
3171 | printk(KERN_ERR "%s: Cannot clear MAC address\n", | |
3172 | wiphy_name(hw->wiphy)); | |
3173 | goto err_stop_firmware; | |
3174 | } | |
3175 | ||
a66098da | 3176 | /* Disable interrupts */ |
a66098da | 3177 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3178 | free_irq(priv->pdev->irq, hw); |
3179 | ||
3180 | rc = ieee80211_register_hw(hw); | |
3181 | if (rc) { | |
c2c357ce LB |
3182 | printk(KERN_ERR "%s: Cannot register device\n", |
3183 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3184 | goto err_stop_firmware; |
3185 | } | |
3186 | ||
eae74e65 | 3187 | printk(KERN_INFO "%s: %s v%d, %pM, %s firmware %u.%u.%u.%u\n", |
a74b295e | 3188 | wiphy_name(hw->wiphy), priv->device_info->part_name, |
45a390dd | 3189 | priv->hw_rev, hw->wiphy->perm_addr, |
eae74e65 | 3190 | priv->ap_fw ? "AP" : "STA", |
2aa7b01f LB |
3191 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, |
3192 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
3193 | |
3194 | return 0; | |
3195 | ||
3196 | err_stop_firmware: | |
3197 | mwl8k_hw_reset(priv); | |
3198 | mwl8k_release_firmware(priv); | |
3199 | ||
3200 | err_free_irq: | |
a66098da | 3201 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3202 | free_irq(priv->pdev->irq, hw); |
3203 | ||
3204 | err_free_queues: | |
3205 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3206 | mwl8k_txq_deinit(hw, i); | |
3207 | mwl8k_rxq_deinit(hw, 0); | |
3208 | ||
3209 | err_iounmap: | |
3210 | if (priv->cookie != NULL) | |
3211 | pci_free_consistent(priv->pdev, 4, | |
3212 | priv->cookie, priv->cookie_dma); | |
3213 | ||
3214 | if (priv->regs != NULL) | |
3215 | pci_iounmap(pdev, priv->regs); | |
3216 | ||
5b9482dd LB |
3217 | if (priv->sram != NULL) |
3218 | pci_iounmap(pdev, priv->sram); | |
3219 | ||
a66098da LB |
3220 | pci_set_drvdata(pdev, NULL); |
3221 | ieee80211_free_hw(hw); | |
3222 | ||
3223 | err_free_reg: | |
3224 | pci_release_regions(pdev); | |
3225 | pci_disable_device(pdev); | |
3226 | ||
3227 | return rc; | |
3228 | } | |
3229 | ||
230f7af0 | 3230 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
3231 | { |
3232 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
3233 | } | |
3234 | ||
230f7af0 | 3235 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
3236 | { |
3237 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
3238 | struct mwl8k_priv *priv; | |
3239 | int i; | |
3240 | ||
3241 | if (hw == NULL) | |
3242 | return; | |
3243 | priv = hw->priv; | |
3244 | ||
3245 | ieee80211_stop_queues(hw); | |
3246 | ||
60aa569f LB |
3247 | ieee80211_unregister_hw(hw); |
3248 | ||
a66098da LB |
3249 | /* Remove tx reclaim tasklet */ |
3250 | tasklet_kill(&priv->tx_reclaim_task); | |
3251 | ||
a66098da LB |
3252 | /* Stop hardware */ |
3253 | mwl8k_hw_reset(priv); | |
3254 | ||
3255 | /* Return all skbs to mac80211 */ | |
3256 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3257 | mwl8k_txq_reclaim(hw, i, 1); | |
3258 | ||
a66098da LB |
3259 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
3260 | mwl8k_txq_deinit(hw, i); | |
3261 | ||
3262 | mwl8k_rxq_deinit(hw, 0); | |
3263 | ||
c2c357ce | 3264 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da LB |
3265 | |
3266 | pci_iounmap(pdev, priv->regs); | |
5b9482dd | 3267 | pci_iounmap(pdev, priv->sram); |
a66098da LB |
3268 | pci_set_drvdata(pdev, NULL); |
3269 | ieee80211_free_hw(hw); | |
3270 | pci_release_regions(pdev); | |
3271 | pci_disable_device(pdev); | |
3272 | } | |
3273 | ||
3274 | static struct pci_driver mwl8k_driver = { | |
3275 | .name = MWL8K_NAME, | |
45a390dd | 3276 | .id_table = mwl8k_pci_id_table, |
a66098da LB |
3277 | .probe = mwl8k_probe, |
3278 | .remove = __devexit_p(mwl8k_remove), | |
3279 | .shutdown = __devexit_p(mwl8k_shutdown), | |
3280 | }; | |
3281 | ||
3282 | static int __init mwl8k_init(void) | |
3283 | { | |
3284 | return pci_register_driver(&mwl8k_driver); | |
3285 | } | |
3286 | ||
3287 | static void __exit mwl8k_exit(void) | |
3288 | { | |
3289 | pci_unregister_driver(&mwl8k_driver); | |
3290 | } | |
3291 | ||
3292 | module_init(mwl8k_init); | |
3293 | module_exit(mwl8k_exit); | |
c2c357ce LB |
3294 | |
3295 | MODULE_DESCRIPTION(MWL8K_DESC); | |
3296 | MODULE_VERSION(MWL8K_VERSION); | |
3297 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
3298 | MODULE_LICENSE("GPL"); |