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Commit | Line | Data |
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a66098da | 1 | /* |
ce9e2e1b LB |
2 | * drivers/net/wireless/mwl8k.c |
3 | * Driver for Marvell TOPDOG 802.11 Wireless cards | |
a66098da | 4 | * |
a145d575 | 5 | * Copyright (C) 2008-2009 Marvell Semiconductor Inc. |
a66098da LB |
6 | * |
7 | * This file is licensed under the terms of the GNU General Public | |
8 | * License version 2. This program is licensed "as is" without any | |
9 | * warranty of any kind, whether express or implied. | |
10 | */ | |
11 | ||
12 | #include <linux/init.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/kernel.h> | |
3d76e82c | 15 | #include <linux/sched.h> |
a66098da LB |
16 | #include <linux/spinlock.h> |
17 | #include <linux/list.h> | |
18 | #include <linux/pci.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/completion.h> | |
21 | #include <linux/etherdevice.h> | |
22 | #include <net/mac80211.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/firmware.h> | |
25 | #include <linux/workqueue.h> | |
26 | ||
27 | #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" | |
28 | #define MWL8K_NAME KBUILD_MODNAME | |
a145d575 | 29 | #define MWL8K_VERSION "0.10" |
a66098da | 30 | |
a66098da LB |
31 | /* Register definitions */ |
32 | #define MWL8K_HIU_GEN_PTR 0x00000c10 | |
ce9e2e1b LB |
33 | #define MWL8K_MODE_STA 0x0000005a |
34 | #define MWL8K_MODE_AP 0x000000a5 | |
a66098da | 35 | #define MWL8K_HIU_INT_CODE 0x00000c14 |
ce9e2e1b LB |
36 | #define MWL8K_FWSTA_READY 0xf0f1f2f4 |
37 | #define MWL8K_FWAP_READY 0xf1f2f4a5 | |
38 | #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 | |
a66098da LB |
39 | #define MWL8K_HIU_SCRATCH 0x00000c40 |
40 | ||
41 | /* Host->device communications */ | |
42 | #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 | |
43 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c | |
44 | #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 | |
45 | #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 | |
46 | #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 | |
ce9e2e1b LB |
47 | #define MWL8K_H2A_INT_DUMMY (1 << 20) |
48 | #define MWL8K_H2A_INT_RESET (1 << 15) | |
49 | #define MWL8K_H2A_INT_DOORBELL (1 << 1) | |
50 | #define MWL8K_H2A_INT_PPA_READY (1 << 0) | |
a66098da LB |
51 | |
52 | /* Device->host communications */ | |
53 | #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c | |
54 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 | |
55 | #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 | |
56 | #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 | |
57 | #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c | |
ce9e2e1b LB |
58 | #define MWL8K_A2H_INT_DUMMY (1 << 20) |
59 | #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) | |
60 | #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) | |
61 | #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) | |
62 | #define MWL8K_A2H_INT_RADIO_ON (1 << 6) | |
63 | #define MWL8K_A2H_INT_RADIO_OFF (1 << 5) | |
64 | #define MWL8K_A2H_INT_MAC_EVENT (1 << 3) | |
65 | #define MWL8K_A2H_INT_OPC_DONE (1 << 2) | |
66 | #define MWL8K_A2H_INT_RX_READY (1 << 1) | |
67 | #define MWL8K_A2H_INT_TX_DONE (1 << 0) | |
a66098da LB |
68 | |
69 | #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ | |
70 | MWL8K_A2H_INT_CHNL_SWITCHED | \ | |
71 | MWL8K_A2H_INT_QUEUE_EMPTY | \ | |
72 | MWL8K_A2H_INT_RADAR_DETECT | \ | |
73 | MWL8K_A2H_INT_RADIO_ON | \ | |
74 | MWL8K_A2H_INT_RADIO_OFF | \ | |
75 | MWL8K_A2H_INT_MAC_EVENT | \ | |
76 | MWL8K_A2H_INT_OPC_DONE | \ | |
77 | MWL8K_A2H_INT_RX_READY | \ | |
78 | MWL8K_A2H_INT_TX_DONE) | |
79 | ||
a66098da LB |
80 | #define MWL8K_RX_QUEUES 1 |
81 | #define MWL8K_TX_QUEUES 4 | |
82 | ||
54bc3a0d LB |
83 | struct rxd_ops { |
84 | int rxd_size; | |
85 | void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr); | |
86 | void (*rxd_refill)(void *rxd, dma_addr_t addr, int len); | |
20f09c3d LB |
87 | int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status, |
88 | __le16 *qos); | |
54bc3a0d LB |
89 | }; |
90 | ||
45a390dd | 91 | struct mwl8k_device_info { |
a74b295e LB |
92 | char *part_name; |
93 | char *helper_image; | |
94 | char *fw_image; | |
54bc3a0d | 95 | struct rxd_ops *rxd_ops; |
547810e3 | 96 | u16 modes; |
45a390dd LB |
97 | }; |
98 | ||
a66098da | 99 | struct mwl8k_rx_queue { |
45eb400d | 100 | int rxd_count; |
a66098da LB |
101 | |
102 | /* hw receives here */ | |
45eb400d | 103 | int head; |
a66098da LB |
104 | |
105 | /* refill descs here */ | |
45eb400d | 106 | int tail; |
a66098da | 107 | |
54bc3a0d | 108 | void *rxd; |
45eb400d | 109 | dma_addr_t rxd_dma; |
788838eb LB |
110 | struct { |
111 | struct sk_buff *skb; | |
112 | DECLARE_PCI_UNMAP_ADDR(dma) | |
113 | } *buf; | |
a66098da LB |
114 | }; |
115 | ||
a66098da LB |
116 | struct mwl8k_tx_queue { |
117 | /* hw transmits here */ | |
45eb400d | 118 | int head; |
a66098da LB |
119 | |
120 | /* sw appends here */ | |
45eb400d | 121 | int tail; |
a66098da | 122 | |
45eb400d LB |
123 | struct ieee80211_tx_queue_stats stats; |
124 | struct mwl8k_tx_desc *txd; | |
125 | dma_addr_t txd_dma; | |
126 | struct sk_buff **skb; | |
a66098da LB |
127 | }; |
128 | ||
129 | /* Pointers to the firmware data and meta information about it. */ | |
130 | struct mwl8k_firmware { | |
a66098da LB |
131 | /* Boot helper code */ |
132 | struct firmware *helper; | |
a74b295e LB |
133 | |
134 | /* Microcode */ | |
135 | struct firmware *ucode; | |
a66098da LB |
136 | }; |
137 | ||
138 | struct mwl8k_priv { | |
5b9482dd | 139 | void __iomem *sram; |
a66098da LB |
140 | void __iomem *regs; |
141 | struct ieee80211_hw *hw; | |
142 | ||
143 | struct pci_dev *pdev; | |
a66098da | 144 | |
45a390dd | 145 | struct mwl8k_device_info *device_info; |
eae74e65 | 146 | bool ap_fw; |
54bc3a0d | 147 | struct rxd_ops *rxd_ops; |
45a390dd | 148 | |
a66098da LB |
149 | /* firmware files and meta data */ |
150 | struct mwl8k_firmware fw; | |
a66098da | 151 | |
618952a7 LB |
152 | /* firmware access */ |
153 | struct mutex fw_mutex; | |
154 | struct task_struct *fw_mutex_owner; | |
155 | int fw_mutex_depth; | |
618952a7 LB |
156 | struct completion *hostcmd_wait; |
157 | ||
a66098da LB |
158 | /* lock held over TX and TX reap */ |
159 | spinlock_t tx_lock; | |
a66098da | 160 | |
88de754a LB |
161 | /* TX quiesce completion, protected by fw_mutex and tx_lock */ |
162 | struct completion *tx_wait; | |
163 | ||
a66098da | 164 | struct ieee80211_vif *vif; |
a66098da LB |
165 | |
166 | struct ieee80211_channel *current_channel; | |
167 | ||
168 | /* power management status cookie from firmware */ | |
169 | u32 *cookie; | |
170 | dma_addr_t cookie_dma; | |
171 | ||
172 | u16 num_mcaddrs; | |
a66098da | 173 | u8 hw_rev; |
2aa7b01f | 174 | u32 fw_rev; |
a66098da LB |
175 | |
176 | /* | |
177 | * Running count of TX packets in flight, to avoid | |
178 | * iterating over the transmit rings each time. | |
179 | */ | |
180 | int pending_tx_pkts; | |
181 | ||
182 | struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; | |
183 | struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; | |
184 | ||
185 | /* PHY parameters */ | |
186 | struct ieee80211_supported_band band; | |
187 | struct ieee80211_channel channels[14]; | |
140eb5e2 | 188 | struct ieee80211_rate rates[14]; |
a66098da | 189 | |
c46563b7 | 190 | bool radio_on; |
68ce3884 | 191 | bool radio_short_preamble; |
a43c49a8 | 192 | bool sniffer_enabled; |
0439b1f5 | 193 | bool wmm_enabled; |
a66098da | 194 | |
a66098da LB |
195 | /* XXX need to convert this to handle multiple interfaces */ |
196 | bool capture_beacon; | |
d89173f2 | 197 | u8 capture_bssid[ETH_ALEN]; |
a66098da LB |
198 | struct sk_buff *beacon_skb; |
199 | ||
200 | /* | |
201 | * This FJ worker has to be global as it is scheduled from the | |
202 | * RX handler. At this point we don't know which interface it | |
203 | * belongs to until the list of bssids waiting to complete join | |
204 | * is checked. | |
205 | */ | |
206 | struct work_struct finalize_join_worker; | |
207 | ||
208 | /* Tasklet to reclaim TX descriptors and buffers after tx */ | |
209 | struct tasklet_struct tx_reclaim_task; | |
a66098da LB |
210 | }; |
211 | ||
212 | /* Per interface specific private data */ | |
213 | struct mwl8k_vif { | |
a66098da LB |
214 | /* backpointer to parent config block */ |
215 | struct mwl8k_priv *priv; | |
216 | ||
217 | /* BSS config of AP or IBSS from mac80211*/ | |
218 | struct ieee80211_bss_conf bss_info; | |
219 | ||
220 | /* BSSID of AP or IBSS */ | |
d89173f2 LB |
221 | u8 bssid[ETH_ALEN]; |
222 | u8 mac_addr[ETH_ALEN]; | |
a66098da | 223 | |
55489b6e | 224 | /* Index into station database. Returned by UPDATE_STADB. */ |
a66098da LB |
225 | u8 peer_id; |
226 | ||
227 | /* Non AMPDU sequence number assigned by driver */ | |
228 | u16 seqno; | |
a66098da LB |
229 | }; |
230 | ||
a94cc97e | 231 | #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) |
a66098da LB |
232 | |
233 | static const struct ieee80211_channel mwl8k_channels[] = { | |
234 | { .center_freq = 2412, .hw_value = 1, }, | |
235 | { .center_freq = 2417, .hw_value = 2, }, | |
236 | { .center_freq = 2422, .hw_value = 3, }, | |
237 | { .center_freq = 2427, .hw_value = 4, }, | |
238 | { .center_freq = 2432, .hw_value = 5, }, | |
239 | { .center_freq = 2437, .hw_value = 6, }, | |
240 | { .center_freq = 2442, .hw_value = 7, }, | |
241 | { .center_freq = 2447, .hw_value = 8, }, | |
242 | { .center_freq = 2452, .hw_value = 9, }, | |
243 | { .center_freq = 2457, .hw_value = 10, }, | |
244 | { .center_freq = 2462, .hw_value = 11, }, | |
245 | }; | |
246 | ||
247 | static const struct ieee80211_rate mwl8k_rates[] = { | |
248 | { .bitrate = 10, .hw_value = 2, }, | |
249 | { .bitrate = 20, .hw_value = 4, }, | |
250 | { .bitrate = 55, .hw_value = 11, }, | |
5dfd3e2c LB |
251 | { .bitrate = 110, .hw_value = 22, }, |
252 | { .bitrate = 220, .hw_value = 44, }, | |
a66098da LB |
253 | { .bitrate = 60, .hw_value = 12, }, |
254 | { .bitrate = 90, .hw_value = 18, }, | |
a66098da LB |
255 | { .bitrate = 120, .hw_value = 24, }, |
256 | { .bitrate = 180, .hw_value = 36, }, | |
257 | { .bitrate = 240, .hw_value = 48, }, | |
258 | { .bitrate = 360, .hw_value = 72, }, | |
259 | { .bitrate = 480, .hw_value = 96, }, | |
260 | { .bitrate = 540, .hw_value = 108, }, | |
140eb5e2 LB |
261 | { .bitrate = 720, .hw_value = 144, }, |
262 | }; | |
263 | ||
264 | static const u8 mwl8k_rateids[12] = { | |
265 | 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, | |
a66098da LB |
266 | }; |
267 | ||
a66098da LB |
268 | /* Set or get info from Firmware */ |
269 | #define MWL8K_CMD_SET 0x0001 | |
270 | #define MWL8K_CMD_GET 0x0000 | |
271 | ||
272 | /* Firmware command codes */ | |
273 | #define MWL8K_CMD_CODE_DNLD 0x0001 | |
274 | #define MWL8K_CMD_GET_HW_SPEC 0x0003 | |
42fba21d | 275 | #define MWL8K_CMD_SET_HW_SPEC 0x0004 |
a66098da LB |
276 | #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 |
277 | #define MWL8K_CMD_GET_STAT 0x0014 | |
ff45fc60 LB |
278 | #define MWL8K_CMD_RADIO_CONTROL 0x001c |
279 | #define MWL8K_CMD_RF_TX_POWER 0x001e | |
08b06347 | 280 | #define MWL8K_CMD_RF_ANTENNA 0x0020 |
a66098da LB |
281 | #define MWL8K_CMD_SET_PRE_SCAN 0x0107 |
282 | #define MWL8K_CMD_SET_POST_SCAN 0x0108 | |
ff45fc60 LB |
283 | #define MWL8K_CMD_SET_RF_CHANNEL 0x010a |
284 | #define MWL8K_CMD_SET_AID 0x010d | |
285 | #define MWL8K_CMD_SET_RATE 0x0110 | |
286 | #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 | |
287 | #define MWL8K_CMD_RTS_THRESHOLD 0x0113 | |
a66098da | 288 | #define MWL8K_CMD_SET_SLOT 0x0114 |
ff45fc60 LB |
289 | #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 |
290 | #define MWL8K_CMD_SET_WMM_MODE 0x0123 | |
a66098da | 291 | #define MWL8K_CMD_MIMO_CONFIG 0x0125 |
ff45fc60 | 292 | #define MWL8K_CMD_USE_FIXED_RATE 0x0126 |
a66098da | 293 | #define MWL8K_CMD_ENABLE_SNIFFER 0x0150 |
32060e1b | 294 | #define MWL8K_CMD_SET_MAC_ADDR 0x0202 |
a66098da | 295 | #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 |
ff45fc60 | 296 | #define MWL8K_CMD_UPDATE_STADB 0x1123 |
a66098da LB |
297 | |
298 | static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) | |
299 | { | |
300 | #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ | |
301 | snprintf(buf, bufsize, "%s", #x);\ | |
302 | return buf;\ | |
303 | } while (0) | |
ce9e2e1b | 304 | switch (cmd & ~0x8000) { |
a66098da LB |
305 | MWL8K_CMDNAME(CODE_DNLD); |
306 | MWL8K_CMDNAME(GET_HW_SPEC); | |
42fba21d | 307 | MWL8K_CMDNAME(SET_HW_SPEC); |
a66098da LB |
308 | MWL8K_CMDNAME(MAC_MULTICAST_ADR); |
309 | MWL8K_CMDNAME(GET_STAT); | |
310 | MWL8K_CMDNAME(RADIO_CONTROL); | |
311 | MWL8K_CMDNAME(RF_TX_POWER); | |
08b06347 | 312 | MWL8K_CMDNAME(RF_ANTENNA); |
a66098da LB |
313 | MWL8K_CMDNAME(SET_PRE_SCAN); |
314 | MWL8K_CMDNAME(SET_POST_SCAN); | |
315 | MWL8K_CMDNAME(SET_RF_CHANNEL); | |
ff45fc60 LB |
316 | MWL8K_CMDNAME(SET_AID); |
317 | MWL8K_CMDNAME(SET_RATE); | |
318 | MWL8K_CMDNAME(SET_FINALIZE_JOIN); | |
319 | MWL8K_CMDNAME(RTS_THRESHOLD); | |
a66098da | 320 | MWL8K_CMDNAME(SET_SLOT); |
ff45fc60 LB |
321 | MWL8K_CMDNAME(SET_EDCA_PARAMS); |
322 | MWL8K_CMDNAME(SET_WMM_MODE); | |
a66098da | 323 | MWL8K_CMDNAME(MIMO_CONFIG); |
ff45fc60 | 324 | MWL8K_CMDNAME(USE_FIXED_RATE); |
a66098da | 325 | MWL8K_CMDNAME(ENABLE_SNIFFER); |
32060e1b | 326 | MWL8K_CMDNAME(SET_MAC_ADDR); |
a66098da | 327 | MWL8K_CMDNAME(SET_RATEADAPT_MODE); |
ff45fc60 | 328 | MWL8K_CMDNAME(UPDATE_STADB); |
a66098da LB |
329 | default: |
330 | snprintf(buf, bufsize, "0x%x", cmd); | |
331 | } | |
332 | #undef MWL8K_CMDNAME | |
333 | ||
334 | return buf; | |
335 | } | |
336 | ||
337 | /* Hardware and firmware reset */ | |
338 | static void mwl8k_hw_reset(struct mwl8k_priv *priv) | |
339 | { | |
340 | iowrite32(MWL8K_H2A_INT_RESET, | |
341 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
342 | iowrite32(MWL8K_H2A_INT_RESET, | |
343 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
344 | msleep(20); | |
345 | } | |
346 | ||
347 | /* Release fw image */ | |
348 | static void mwl8k_release_fw(struct firmware **fw) | |
349 | { | |
350 | if (*fw == NULL) | |
351 | return; | |
352 | release_firmware(*fw); | |
353 | *fw = NULL; | |
354 | } | |
355 | ||
356 | static void mwl8k_release_firmware(struct mwl8k_priv *priv) | |
357 | { | |
358 | mwl8k_release_fw(&priv->fw.ucode); | |
359 | mwl8k_release_fw(&priv->fw.helper); | |
360 | } | |
361 | ||
362 | /* Request fw image */ | |
363 | static int mwl8k_request_fw(struct mwl8k_priv *priv, | |
c2c357ce | 364 | const char *fname, struct firmware **fw) |
a66098da LB |
365 | { |
366 | /* release current image */ | |
367 | if (*fw != NULL) | |
368 | mwl8k_release_fw(fw); | |
369 | ||
370 | return request_firmware((const struct firmware **)fw, | |
c2c357ce | 371 | fname, &priv->pdev->dev); |
a66098da LB |
372 | } |
373 | ||
45a390dd | 374 | static int mwl8k_request_firmware(struct mwl8k_priv *priv) |
a66098da | 375 | { |
a74b295e | 376 | struct mwl8k_device_info *di = priv->device_info; |
a66098da LB |
377 | int rc; |
378 | ||
a74b295e LB |
379 | if (di->helper_image != NULL) { |
380 | rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw.helper); | |
381 | if (rc) { | |
382 | printk(KERN_ERR "%s: Error requesting helper " | |
383 | "firmware file %s\n", pci_name(priv->pdev), | |
384 | di->helper_image); | |
385 | return rc; | |
386 | } | |
a66098da LB |
387 | } |
388 | ||
a74b295e | 389 | rc = mwl8k_request_fw(priv, di->fw_image, &priv->fw.ucode); |
a66098da | 390 | if (rc) { |
c2c357ce | 391 | printk(KERN_ERR "%s: Error requesting firmware file %s\n", |
a74b295e | 392 | pci_name(priv->pdev), di->fw_image); |
a66098da LB |
393 | mwl8k_release_fw(&priv->fw.helper); |
394 | return rc; | |
395 | } | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
7e75b942 BH |
400 | MODULE_FIRMWARE("mwl8k/helper_8687.fw"); |
401 | MODULE_FIRMWARE("mwl8k/fmimage_8687.fw"); | |
402 | ||
a66098da LB |
403 | struct mwl8k_cmd_pkt { |
404 | __le16 code; | |
405 | __le16 length; | |
406 | __le16 seq_num; | |
407 | __le16 result; | |
408 | char payload[0]; | |
409 | } __attribute__((packed)); | |
410 | ||
411 | /* | |
412 | * Firmware loading. | |
413 | */ | |
414 | static int | |
415 | mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) | |
416 | { | |
417 | void __iomem *regs = priv->regs; | |
418 | dma_addr_t dma_addr; | |
a66098da LB |
419 | int loops; |
420 | ||
421 | dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); | |
422 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
423 | return -ENOMEM; | |
424 | ||
425 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
426 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
427 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
428 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
429 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
430 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
431 | ||
a66098da LB |
432 | loops = 1000; |
433 | do { | |
434 | u32 int_code; | |
435 | ||
436 | int_code = ioread32(regs + MWL8K_HIU_INT_CODE); | |
437 | if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { | |
438 | iowrite32(0, regs + MWL8K_HIU_INT_CODE); | |
a66098da LB |
439 | break; |
440 | } | |
441 | ||
3d76e82c | 442 | cond_resched(); |
a66098da LB |
443 | udelay(1); |
444 | } while (--loops); | |
445 | ||
446 | pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); | |
447 | ||
d4b70570 | 448 | return loops ? 0 : -ETIMEDOUT; |
a66098da LB |
449 | } |
450 | ||
451 | static int mwl8k_load_fw_image(struct mwl8k_priv *priv, | |
452 | const u8 *data, size_t length) | |
453 | { | |
454 | struct mwl8k_cmd_pkt *cmd; | |
455 | int done; | |
456 | int rc = 0; | |
457 | ||
458 | cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); | |
459 | if (cmd == NULL) | |
460 | return -ENOMEM; | |
461 | ||
462 | cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); | |
463 | cmd->seq_num = 0; | |
464 | cmd->result = 0; | |
465 | ||
466 | done = 0; | |
467 | while (length) { | |
468 | int block_size = length > 256 ? 256 : length; | |
469 | ||
470 | memcpy(cmd->payload, data + done, block_size); | |
471 | cmd->length = cpu_to_le16(block_size); | |
472 | ||
473 | rc = mwl8k_send_fw_load_cmd(priv, cmd, | |
474 | sizeof(*cmd) + block_size); | |
475 | if (rc) | |
476 | break; | |
477 | ||
478 | done += block_size; | |
479 | length -= block_size; | |
480 | } | |
481 | ||
482 | if (!rc) { | |
483 | cmd->length = 0; | |
484 | rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); | |
485 | } | |
486 | ||
487 | kfree(cmd); | |
488 | ||
489 | return rc; | |
490 | } | |
491 | ||
492 | static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, | |
493 | const u8 *data, size_t length) | |
494 | { | |
495 | unsigned char *buffer; | |
496 | int may_continue, rc = 0; | |
497 | u32 done, prev_block_size; | |
498 | ||
499 | buffer = kmalloc(1024, GFP_KERNEL); | |
500 | if (buffer == NULL) | |
501 | return -ENOMEM; | |
502 | ||
503 | done = 0; | |
504 | prev_block_size = 0; | |
505 | may_continue = 1000; | |
506 | while (may_continue > 0) { | |
507 | u32 block_size; | |
508 | ||
509 | block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); | |
510 | if (block_size & 1) { | |
511 | block_size &= ~1; | |
512 | may_continue--; | |
513 | } else { | |
514 | done += prev_block_size; | |
515 | length -= prev_block_size; | |
516 | } | |
517 | ||
518 | if (block_size > 1024 || block_size > length) { | |
519 | rc = -EOVERFLOW; | |
520 | break; | |
521 | } | |
522 | ||
523 | if (length == 0) { | |
524 | rc = 0; | |
525 | break; | |
526 | } | |
527 | ||
528 | if (block_size == 0) { | |
529 | rc = -EPROTO; | |
530 | may_continue--; | |
531 | udelay(1); | |
532 | continue; | |
533 | } | |
534 | ||
535 | prev_block_size = block_size; | |
536 | memcpy(buffer, data + done, block_size); | |
537 | ||
538 | rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); | |
539 | if (rc) | |
540 | break; | |
541 | } | |
542 | ||
543 | if (!rc && length != 0) | |
544 | rc = -EREMOTEIO; | |
545 | ||
546 | kfree(buffer); | |
547 | ||
548 | return rc; | |
549 | } | |
550 | ||
c2c357ce | 551 | static int mwl8k_load_firmware(struct ieee80211_hw *hw) |
a66098da | 552 | { |
c2c357ce LB |
553 | struct mwl8k_priv *priv = hw->priv; |
554 | struct firmware *fw = priv->fw.ucode; | |
eae74e65 | 555 | struct mwl8k_device_info *di = priv->device_info; |
c2c357ce LB |
556 | int rc; |
557 | int loops; | |
558 | ||
559 | if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { | |
560 | struct firmware *helper = priv->fw.helper; | |
a66098da | 561 | |
c2c357ce LB |
562 | if (helper == NULL) { |
563 | printk(KERN_ERR "%s: helper image needed but none " | |
564 | "given\n", pci_name(priv->pdev)); | |
565 | return -EINVAL; | |
566 | } | |
a66098da | 567 | |
c2c357ce | 568 | rc = mwl8k_load_fw_image(priv, helper->data, helper->size); |
a66098da LB |
569 | if (rc) { |
570 | printk(KERN_ERR "%s: unable to load firmware " | |
c2c357ce | 571 | "helper image\n", pci_name(priv->pdev)); |
a66098da LB |
572 | return rc; |
573 | } | |
89b872e2 | 574 | msleep(5); |
a66098da | 575 | |
c2c357ce | 576 | rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); |
a66098da | 577 | } else { |
c2c357ce | 578 | rc = mwl8k_load_fw_image(priv, fw->data, fw->size); |
a66098da LB |
579 | } |
580 | ||
581 | if (rc) { | |
c2c357ce LB |
582 | printk(KERN_ERR "%s: unable to load firmware image\n", |
583 | pci_name(priv->pdev)); | |
a66098da LB |
584 | return rc; |
585 | } | |
586 | ||
eae74e65 LB |
587 | if (di->modes & BIT(NL80211_IFTYPE_AP)) |
588 | iowrite32(MWL8K_MODE_AP, priv->regs + MWL8K_HIU_GEN_PTR); | |
589 | else | |
590 | iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); | |
a66098da | 591 | |
89b872e2 | 592 | loops = 500000; |
a66098da | 593 | do { |
eae74e65 LB |
594 | u32 ready_code; |
595 | ||
596 | ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
597 | if (ready_code == MWL8K_FWAP_READY) { | |
598 | priv->ap_fw = 1; | |
599 | break; | |
600 | } else if (ready_code == MWL8K_FWSTA_READY) { | |
601 | priv->ap_fw = 0; | |
a66098da | 602 | break; |
eae74e65 LB |
603 | } |
604 | ||
605 | cond_resched(); | |
a66098da LB |
606 | udelay(1); |
607 | } while (--loops); | |
608 | ||
609 | return loops ? 0 : -ETIMEDOUT; | |
610 | } | |
611 | ||
612 | ||
613 | /* | |
614 | * Defines shared between transmission and reception. | |
615 | */ | |
616 | /* HT control fields for firmware */ | |
617 | struct ewc_ht_info { | |
618 | __le16 control1; | |
619 | __le16 control2; | |
620 | __le16 control3; | |
621 | } __attribute__((packed)); | |
622 | ||
623 | /* Firmware Station database operations */ | |
624 | #define MWL8K_STA_DB_ADD_ENTRY 0 | |
625 | #define MWL8K_STA_DB_MODIFY_ENTRY 1 | |
626 | #define MWL8K_STA_DB_DEL_ENTRY 2 | |
627 | #define MWL8K_STA_DB_FLUSH 3 | |
628 | ||
629 | /* Peer Entry flags - used to define the type of the peer node */ | |
630 | #define MWL8K_PEER_TYPE_ACCESSPOINT 2 | |
a66098da | 631 | |
a66098da LB |
632 | struct peer_capability_info { |
633 | /* Peer type - AP vs. STA. */ | |
634 | __u8 peer_type; | |
635 | ||
636 | /* Basic 802.11 capabilities from assoc resp. */ | |
637 | __le16 basic_caps; | |
638 | ||
639 | /* Set if peer supports 802.11n high throughput (HT). */ | |
640 | __u8 ht_support; | |
641 | ||
642 | /* Valid if HT is supported. */ | |
643 | __le16 ht_caps; | |
644 | __u8 extended_ht_caps; | |
645 | struct ewc_ht_info ewc_info; | |
646 | ||
647 | /* Legacy rate table. Intersection of our rates and peer rates. */ | |
140eb5e2 | 648 | __u8 legacy_rates[12]; |
a66098da LB |
649 | |
650 | /* HT rate table. Intersection of our rates and peer rates. */ | |
0b5351a8 | 651 | __u8 ht_rates[16]; |
c23b5a69 | 652 | __u8 pad[16]; |
a66098da LB |
653 | |
654 | /* If set, interoperability mode, no proprietary extensions. */ | |
655 | __u8 interop; | |
656 | __u8 pad2; | |
657 | __u8 station_id; | |
658 | __le16 amsdu_enabled; | |
659 | } __attribute__((packed)); | |
660 | ||
a66098da LB |
661 | /* DMA header used by firmware and hardware. */ |
662 | struct mwl8k_dma_data { | |
663 | __le16 fwlen; | |
664 | struct ieee80211_hdr wh; | |
20f09c3d | 665 | char data[0]; |
a66098da LB |
666 | } __attribute__((packed)); |
667 | ||
668 | /* Routines to add/remove DMA header from skb. */ | |
20f09c3d | 669 | static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos) |
a66098da | 670 | { |
20f09c3d LB |
671 | struct mwl8k_dma_data *tr; |
672 | int hdrlen; | |
673 | ||
674 | tr = (struct mwl8k_dma_data *)skb->data; | |
675 | hdrlen = ieee80211_hdrlen(tr->wh.frame_control); | |
676 | ||
677 | if (hdrlen != sizeof(tr->wh)) { | |
678 | if (ieee80211_is_data_qos(tr->wh.frame_control)) { | |
679 | memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2); | |
680 | *((__le16 *)(tr->data - 2)) = qos; | |
681 | } else { | |
682 | memmove(tr->data - hdrlen, &tr->wh, hdrlen); | |
683 | } | |
a66098da | 684 | } |
20f09c3d LB |
685 | |
686 | if (hdrlen != sizeof(*tr)) | |
687 | skb_pull(skb, sizeof(*tr) - hdrlen); | |
a66098da LB |
688 | } |
689 | ||
76266b2a | 690 | static inline void mwl8k_add_dma_header(struct sk_buff *skb) |
a66098da LB |
691 | { |
692 | struct ieee80211_hdr *wh; | |
ca009301 | 693 | int hdrlen; |
a66098da LB |
694 | struct mwl8k_dma_data *tr; |
695 | ||
ca009301 LB |
696 | /* |
697 | * Add a firmware DMA header; the firmware requires that we | |
698 | * present a 2-byte payload length followed by a 4-address | |
699 | * header (without QoS field), followed (optionally) by any | |
700 | * WEP/ExtIV header (but only filled in for CCMP). | |
701 | */ | |
a66098da | 702 | wh = (struct ieee80211_hdr *)skb->data; |
ca009301 | 703 | |
a66098da | 704 | hdrlen = ieee80211_hdrlen(wh->frame_control); |
ca009301 LB |
705 | if (hdrlen != sizeof(*tr)) |
706 | skb_push(skb, sizeof(*tr) - hdrlen); | |
a66098da | 707 | |
ca009301 LB |
708 | if (ieee80211_is_data_qos(wh->frame_control)) |
709 | hdrlen -= 2; | |
a66098da LB |
710 | |
711 | tr = (struct mwl8k_dma_data *)skb->data; | |
712 | if (wh != &tr->wh) | |
713 | memmove(&tr->wh, wh, hdrlen); | |
ca009301 LB |
714 | if (hdrlen != sizeof(tr->wh)) |
715 | memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen); | |
a66098da LB |
716 | |
717 | /* | |
718 | * Firmware length is the length of the fully formed "802.11 | |
719 | * payload". That is, everything except for the 802.11 header. | |
720 | * This includes all crypto material including the MIC. | |
721 | */ | |
ca009301 | 722 | tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr)); |
a66098da LB |
723 | } |
724 | ||
725 | ||
726 | /* | |
6f6d1e9a LB |
727 | * Packet reception for 88w8366. |
728 | */ | |
729 | struct mwl8k_rxd_8366 { | |
730 | __le16 pkt_len; | |
731 | __u8 sq2; | |
732 | __u8 rate; | |
733 | __le32 pkt_phys_addr; | |
734 | __le32 next_rxd_phys_addr; | |
735 | __le16 qos_control; | |
736 | __le16 htsig2; | |
737 | __le32 hw_rssi_info; | |
738 | __le32 hw_noise_floor_info; | |
739 | __u8 noise_floor; | |
740 | __u8 pad0[3]; | |
741 | __u8 rssi; | |
742 | __u8 rx_status; | |
743 | __u8 channel; | |
744 | __u8 rx_ctrl; | |
745 | } __attribute__((packed)); | |
746 | ||
8e9f33f0 LB |
747 | #define MWL8K_8366_RATE_INFO_MCS_FORMAT 0x80 |
748 | #define MWL8K_8366_RATE_INFO_40MHZ 0x40 | |
749 | #define MWL8K_8366_RATE_INFO_RATEID(x) ((x) & 0x3f) | |
750 | ||
6f6d1e9a LB |
751 | #define MWL8K_8366_RX_CTRL_OWNED_BY_HOST 0x80 |
752 | ||
753 | static void mwl8k_rxd_8366_init(void *_rxd, dma_addr_t next_dma_addr) | |
754 | { | |
755 | struct mwl8k_rxd_8366 *rxd = _rxd; | |
756 | ||
757 | rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr); | |
758 | rxd->rx_ctrl = MWL8K_8366_RX_CTRL_OWNED_BY_HOST; | |
759 | } | |
760 | ||
761 | static void mwl8k_rxd_8366_refill(void *_rxd, dma_addr_t addr, int len) | |
762 | { | |
763 | struct mwl8k_rxd_8366 *rxd = _rxd; | |
764 | ||
765 | rxd->pkt_len = cpu_to_le16(len); | |
766 | rxd->pkt_phys_addr = cpu_to_le32(addr); | |
767 | wmb(); | |
768 | rxd->rx_ctrl = 0; | |
769 | } | |
770 | ||
771 | static int | |
20f09c3d LB |
772 | mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status, |
773 | __le16 *qos) | |
6f6d1e9a LB |
774 | { |
775 | struct mwl8k_rxd_8366 *rxd = _rxd; | |
776 | ||
777 | if (!(rxd->rx_ctrl & MWL8K_8366_RX_CTRL_OWNED_BY_HOST)) | |
778 | return -1; | |
779 | rmb(); | |
780 | ||
781 | memset(status, 0, sizeof(*status)); | |
782 | ||
783 | status->signal = -rxd->rssi; | |
784 | status->noise = -rxd->noise_floor; | |
785 | ||
8e9f33f0 | 786 | if (rxd->rate & MWL8K_8366_RATE_INFO_MCS_FORMAT) { |
6f6d1e9a | 787 | status->flag |= RX_FLAG_HT; |
8e9f33f0 LB |
788 | if (rxd->rate & MWL8K_8366_RATE_INFO_40MHZ) |
789 | status->flag |= RX_FLAG_40MHZ; | |
790 | status->rate_idx = MWL8K_8366_RATE_INFO_RATEID(rxd->rate); | |
6f6d1e9a LB |
791 | } else { |
792 | int i; | |
793 | ||
794 | for (i = 0; i < ARRAY_SIZE(mwl8k_rates); i++) { | |
795 | if (mwl8k_rates[i].hw_value == rxd->rate) { | |
796 | status->rate_idx = i; | |
797 | break; | |
798 | } | |
799 | } | |
800 | } | |
801 | ||
802 | status->band = IEEE80211_BAND_2GHZ; | |
803 | status->freq = ieee80211_channel_to_frequency(rxd->channel); | |
804 | ||
20f09c3d LB |
805 | *qos = rxd->qos_control; |
806 | ||
6f6d1e9a LB |
807 | return le16_to_cpu(rxd->pkt_len); |
808 | } | |
809 | ||
810 | static struct rxd_ops rxd_8366_ops = { | |
811 | .rxd_size = sizeof(struct mwl8k_rxd_8366), | |
812 | .rxd_init = mwl8k_rxd_8366_init, | |
813 | .rxd_refill = mwl8k_rxd_8366_refill, | |
814 | .rxd_process = mwl8k_rxd_8366_process, | |
815 | }; | |
816 | ||
817 | /* | |
818 | * Packet reception for 88w8687. | |
a66098da | 819 | */ |
54bc3a0d | 820 | struct mwl8k_rxd_8687 { |
a66098da LB |
821 | __le16 pkt_len; |
822 | __u8 link_quality; | |
823 | __u8 noise_level; | |
824 | __le32 pkt_phys_addr; | |
45eb400d | 825 | __le32 next_rxd_phys_addr; |
a66098da LB |
826 | __le16 qos_control; |
827 | __le16 rate_info; | |
828 | __le32 pad0[4]; | |
829 | __u8 rssi; | |
830 | __u8 channel; | |
831 | __le16 pad1; | |
832 | __u8 rx_ctrl; | |
833 | __u8 rx_status; | |
834 | __u8 pad2[2]; | |
835 | } __attribute__((packed)); | |
836 | ||
54bc3a0d LB |
837 | #define MWL8K_8687_RATE_INFO_SHORTPRE 0x8000 |
838 | #define MWL8K_8687_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3) | |
839 | #define MWL8K_8687_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f) | |
840 | #define MWL8K_8687_RATE_INFO_40MHZ 0x0004 | |
841 | #define MWL8K_8687_RATE_INFO_SHORTGI 0x0002 | |
842 | #define MWL8K_8687_RATE_INFO_MCS_FORMAT 0x0001 | |
843 | ||
844 | #define MWL8K_8687_RX_CTRL_OWNED_BY_HOST 0x02 | |
845 | ||
846 | static void mwl8k_rxd_8687_init(void *_rxd, dma_addr_t next_dma_addr) | |
847 | { | |
848 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
849 | ||
850 | rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr); | |
851 | rxd->rx_ctrl = MWL8K_8687_RX_CTRL_OWNED_BY_HOST; | |
852 | } | |
853 | ||
854 | static void mwl8k_rxd_8687_refill(void *_rxd, dma_addr_t addr, int len) | |
855 | { | |
856 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
857 | ||
858 | rxd->pkt_len = cpu_to_le16(len); | |
859 | rxd->pkt_phys_addr = cpu_to_le32(addr); | |
860 | wmb(); | |
861 | rxd->rx_ctrl = 0; | |
862 | } | |
863 | ||
864 | static int | |
20f09c3d LB |
865 | mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status, |
866 | __le16 *qos) | |
54bc3a0d LB |
867 | { |
868 | struct mwl8k_rxd_8687 *rxd = _rxd; | |
869 | u16 rate_info; | |
870 | ||
871 | if (!(rxd->rx_ctrl & MWL8K_8687_RX_CTRL_OWNED_BY_HOST)) | |
872 | return -1; | |
873 | rmb(); | |
874 | ||
875 | rate_info = le16_to_cpu(rxd->rate_info); | |
876 | ||
877 | memset(status, 0, sizeof(*status)); | |
878 | ||
879 | status->signal = -rxd->rssi; | |
880 | status->noise = -rxd->noise_level; | |
54bc3a0d LB |
881 | status->antenna = MWL8K_8687_RATE_INFO_ANTSELECT(rate_info); |
882 | status->rate_idx = MWL8K_8687_RATE_INFO_RATEID(rate_info); | |
883 | ||
884 | if (rate_info & MWL8K_8687_RATE_INFO_SHORTPRE) | |
885 | status->flag |= RX_FLAG_SHORTPRE; | |
886 | if (rate_info & MWL8K_8687_RATE_INFO_40MHZ) | |
887 | status->flag |= RX_FLAG_40MHZ; | |
888 | if (rate_info & MWL8K_8687_RATE_INFO_SHORTGI) | |
889 | status->flag |= RX_FLAG_SHORT_GI; | |
890 | if (rate_info & MWL8K_8687_RATE_INFO_MCS_FORMAT) | |
891 | status->flag |= RX_FLAG_HT; | |
892 | ||
893 | status->band = IEEE80211_BAND_2GHZ; | |
894 | status->freq = ieee80211_channel_to_frequency(rxd->channel); | |
895 | ||
20f09c3d LB |
896 | *qos = rxd->qos_control; |
897 | ||
54bc3a0d LB |
898 | return le16_to_cpu(rxd->pkt_len); |
899 | } | |
900 | ||
901 | static struct rxd_ops rxd_8687_ops = { | |
902 | .rxd_size = sizeof(struct mwl8k_rxd_8687), | |
903 | .rxd_init = mwl8k_rxd_8687_init, | |
904 | .rxd_refill = mwl8k_rxd_8687_refill, | |
905 | .rxd_process = mwl8k_rxd_8687_process, | |
906 | }; | |
907 | ||
908 | ||
a66098da LB |
909 | #define MWL8K_RX_DESCS 256 |
910 | #define MWL8K_RX_MAXSZ 3800 | |
911 | ||
912 | static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) | |
913 | { | |
914 | struct mwl8k_priv *priv = hw->priv; | |
915 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
916 | int size; | |
917 | int i; | |
918 | ||
45eb400d LB |
919 | rxq->rxd_count = 0; |
920 | rxq->head = 0; | |
921 | rxq->tail = 0; | |
a66098da | 922 | |
54bc3a0d | 923 | size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size; |
a66098da | 924 | |
45eb400d LB |
925 | rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma); |
926 | if (rxq->rxd == NULL) { | |
a66098da | 927 | printk(KERN_ERR "%s: failed to alloc RX descriptors\n", |
c2c357ce | 928 | wiphy_name(hw->wiphy)); |
a66098da LB |
929 | return -ENOMEM; |
930 | } | |
45eb400d | 931 | memset(rxq->rxd, 0, size); |
a66098da | 932 | |
788838eb LB |
933 | rxq->buf = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->buf), GFP_KERNEL); |
934 | if (rxq->buf == NULL) { | |
a66098da | 935 | printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", |
c2c357ce | 936 | wiphy_name(hw->wiphy)); |
45eb400d | 937 | pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma); |
a66098da LB |
938 | return -ENOMEM; |
939 | } | |
788838eb | 940 | memset(rxq->buf, 0, MWL8K_RX_DESCS * sizeof(*rxq->buf)); |
a66098da LB |
941 | |
942 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
54bc3a0d LB |
943 | int desc_size; |
944 | void *rxd; | |
a66098da | 945 | int nexti; |
54bc3a0d LB |
946 | dma_addr_t next_dma_addr; |
947 | ||
948 | desc_size = priv->rxd_ops->rxd_size; | |
949 | rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size); | |
a66098da | 950 | |
54bc3a0d LB |
951 | nexti = i + 1; |
952 | if (nexti == MWL8K_RX_DESCS) | |
953 | nexti = 0; | |
954 | next_dma_addr = rxq->rxd_dma + (nexti * desc_size); | |
a66098da | 955 | |
54bc3a0d | 956 | priv->rxd_ops->rxd_init(rxd, next_dma_addr); |
a66098da LB |
957 | } |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) | |
963 | { | |
964 | struct mwl8k_priv *priv = hw->priv; | |
965 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
966 | int refilled; | |
967 | ||
968 | refilled = 0; | |
45eb400d | 969 | while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) { |
a66098da | 970 | struct sk_buff *skb; |
788838eb | 971 | dma_addr_t addr; |
a66098da | 972 | int rx; |
54bc3a0d | 973 | void *rxd; |
a66098da LB |
974 | |
975 | skb = dev_alloc_skb(MWL8K_RX_MAXSZ); | |
976 | if (skb == NULL) | |
977 | break; | |
978 | ||
788838eb LB |
979 | addr = pci_map_single(priv->pdev, skb->data, |
980 | MWL8K_RX_MAXSZ, DMA_FROM_DEVICE); | |
a66098da | 981 | |
54bc3a0d LB |
982 | rxq->rxd_count++; |
983 | rx = rxq->tail++; | |
984 | if (rxq->tail == MWL8K_RX_DESCS) | |
985 | rxq->tail = 0; | |
788838eb LB |
986 | rxq->buf[rx].skb = skb; |
987 | pci_unmap_addr_set(&rxq->buf[rx], dma, addr); | |
54bc3a0d LB |
988 | |
989 | rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size); | |
990 | priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ); | |
a66098da LB |
991 | |
992 | refilled++; | |
993 | } | |
994 | ||
995 | return refilled; | |
996 | } | |
997 | ||
998 | /* Must be called only when the card's reception is completely halted */ | |
999 | static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) | |
1000 | { | |
1001 | struct mwl8k_priv *priv = hw->priv; | |
1002 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1003 | int i; | |
1004 | ||
1005 | for (i = 0; i < MWL8K_RX_DESCS; i++) { | |
788838eb LB |
1006 | if (rxq->buf[i].skb != NULL) { |
1007 | pci_unmap_single(priv->pdev, | |
1008 | pci_unmap_addr(&rxq->buf[i], dma), | |
1009 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
1010 | pci_unmap_addr_set(&rxq->buf[i], dma, 0); | |
1011 | ||
1012 | kfree_skb(rxq->buf[i].skb); | |
1013 | rxq->buf[i].skb = NULL; | |
a66098da LB |
1014 | } |
1015 | } | |
1016 | ||
788838eb LB |
1017 | kfree(rxq->buf); |
1018 | rxq->buf = NULL; | |
a66098da LB |
1019 | |
1020 | pci_free_consistent(priv->pdev, | |
54bc3a0d | 1021 | MWL8K_RX_DESCS * priv->rxd_ops->rxd_size, |
45eb400d LB |
1022 | rxq->rxd, rxq->rxd_dma); |
1023 | rxq->rxd = NULL; | |
a66098da LB |
1024 | } |
1025 | ||
1026 | ||
1027 | /* | |
1028 | * Scan a list of BSSIDs to process for finalize join. | |
1029 | * Allows for extension to process multiple BSSIDs. | |
1030 | */ | |
1031 | static inline int | |
1032 | mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) | |
1033 | { | |
1034 | return priv->capture_beacon && | |
1035 | ieee80211_is_beacon(wh->frame_control) && | |
1036 | !compare_ether_addr(wh->addr3, priv->capture_bssid); | |
1037 | } | |
1038 | ||
3779752d LB |
1039 | static inline void mwl8k_save_beacon(struct ieee80211_hw *hw, |
1040 | struct sk_buff *skb) | |
a66098da | 1041 | { |
3779752d LB |
1042 | struct mwl8k_priv *priv = hw->priv; |
1043 | ||
a66098da | 1044 | priv->capture_beacon = false; |
d89173f2 | 1045 | memset(priv->capture_bssid, 0, ETH_ALEN); |
a66098da LB |
1046 | |
1047 | /* | |
1048 | * Use GFP_ATOMIC as rxq_process is called from | |
1049 | * the primary interrupt handler, memory allocation call | |
1050 | * must not sleep. | |
1051 | */ | |
1052 | priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); | |
1053 | if (priv->beacon_skb != NULL) | |
3779752d | 1054 | ieee80211_queue_work(hw, &priv->finalize_join_worker); |
a66098da LB |
1055 | } |
1056 | ||
1057 | static int rxq_process(struct ieee80211_hw *hw, int index, int limit) | |
1058 | { | |
1059 | struct mwl8k_priv *priv = hw->priv; | |
1060 | struct mwl8k_rx_queue *rxq = priv->rxq + index; | |
1061 | int processed; | |
1062 | ||
1063 | processed = 0; | |
45eb400d | 1064 | while (rxq->rxd_count && limit--) { |
a66098da | 1065 | struct sk_buff *skb; |
54bc3a0d LB |
1066 | void *rxd; |
1067 | int pkt_len; | |
a66098da | 1068 | struct ieee80211_rx_status status; |
20f09c3d | 1069 | __le16 qos; |
a66098da | 1070 | |
788838eb | 1071 | skb = rxq->buf[rxq->head].skb; |
d25f9f13 LB |
1072 | if (skb == NULL) |
1073 | break; | |
54bc3a0d LB |
1074 | |
1075 | rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size); | |
1076 | ||
20f09c3d | 1077 | pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos); |
54bc3a0d LB |
1078 | if (pkt_len < 0) |
1079 | break; | |
1080 | ||
788838eb LB |
1081 | rxq->buf[rxq->head].skb = NULL; |
1082 | ||
1083 | pci_unmap_single(priv->pdev, | |
1084 | pci_unmap_addr(&rxq->buf[rxq->head], dma), | |
1085 | MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); | |
1086 | pci_unmap_addr_set(&rxq->buf[rxq->head], dma, 0); | |
a66098da | 1087 | |
54bc3a0d LB |
1088 | rxq->head++; |
1089 | if (rxq->head == MWL8K_RX_DESCS) | |
1090 | rxq->head = 0; | |
1091 | ||
45eb400d | 1092 | rxq->rxd_count--; |
a66098da | 1093 | |
54bc3a0d | 1094 | skb_put(skb, pkt_len); |
20f09c3d | 1095 | mwl8k_remove_dma_header(skb, qos); |
a66098da | 1096 | |
a66098da | 1097 | /* |
c2c357ce LB |
1098 | * Check for a pending join operation. Save a |
1099 | * copy of the beacon and schedule a tasklet to | |
1100 | * send a FINALIZE_JOIN command to the firmware. | |
a66098da | 1101 | */ |
54bc3a0d | 1102 | if (mwl8k_capture_bssid(priv, (void *)skb->data)) |
3779752d | 1103 | mwl8k_save_beacon(hw, skb); |
a66098da | 1104 | |
f1d58c25 JB |
1105 | memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); |
1106 | ieee80211_rx_irqsafe(hw, skb); | |
a66098da LB |
1107 | |
1108 | processed++; | |
1109 | } | |
1110 | ||
1111 | return processed; | |
1112 | } | |
1113 | ||
1114 | ||
1115 | /* | |
1116 | * Packet transmission. | |
1117 | */ | |
1118 | ||
a66098da LB |
1119 | #define MWL8K_TXD_STATUS_OK 0x00000001 |
1120 | #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 | |
1121 | #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 | |
1122 | #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 | |
a66098da | 1123 | #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 |
a66098da | 1124 | |
e0493a8d LB |
1125 | #define MWL8K_QOS_QLEN_UNSPEC 0xff00 |
1126 | #define MWL8K_QOS_ACK_POLICY_MASK 0x0060 | |
1127 | #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000 | |
1128 | #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060 | |
1129 | #define MWL8K_QOS_EOSP 0x0010 | |
1130 | ||
a66098da LB |
1131 | struct mwl8k_tx_desc { |
1132 | __le32 status; | |
1133 | __u8 data_rate; | |
1134 | __u8 tx_priority; | |
1135 | __le16 qos_control; | |
1136 | __le32 pkt_phys_addr; | |
1137 | __le16 pkt_len; | |
d89173f2 | 1138 | __u8 dest_MAC_addr[ETH_ALEN]; |
45eb400d | 1139 | __le32 next_txd_phys_addr; |
a66098da LB |
1140 | __le32 reserved; |
1141 | __le16 rate_info; | |
1142 | __u8 peer_id; | |
1143 | __u8 tx_frag_cnt; | |
1144 | } __attribute__((packed)); | |
1145 | ||
1146 | #define MWL8K_TX_DESCS 128 | |
1147 | ||
1148 | static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) | |
1149 | { | |
1150 | struct mwl8k_priv *priv = hw->priv; | |
1151 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1152 | int size; | |
1153 | int i; | |
1154 | ||
45eb400d LB |
1155 | memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats)); |
1156 | txq->stats.limit = MWL8K_TX_DESCS; | |
1157 | txq->head = 0; | |
1158 | txq->tail = 0; | |
a66098da LB |
1159 | |
1160 | size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); | |
1161 | ||
45eb400d LB |
1162 | txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma); |
1163 | if (txq->txd == NULL) { | |
a66098da | 1164 | printk(KERN_ERR "%s: failed to alloc TX descriptors\n", |
c2c357ce | 1165 | wiphy_name(hw->wiphy)); |
a66098da LB |
1166 | return -ENOMEM; |
1167 | } | |
45eb400d | 1168 | memset(txq->txd, 0, size); |
a66098da | 1169 | |
45eb400d LB |
1170 | txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL); |
1171 | if (txq->skb == NULL) { | |
a66098da | 1172 | printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", |
c2c357ce | 1173 | wiphy_name(hw->wiphy)); |
45eb400d | 1174 | pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma); |
a66098da LB |
1175 | return -ENOMEM; |
1176 | } | |
45eb400d | 1177 | memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb)); |
a66098da LB |
1178 | |
1179 | for (i = 0; i < MWL8K_TX_DESCS; i++) { | |
1180 | struct mwl8k_tx_desc *tx_desc; | |
1181 | int nexti; | |
1182 | ||
45eb400d | 1183 | tx_desc = txq->txd + i; |
a66098da LB |
1184 | nexti = (i + 1) % MWL8K_TX_DESCS; |
1185 | ||
1186 | tx_desc->status = 0; | |
45eb400d LB |
1187 | tx_desc->next_txd_phys_addr = |
1188 | cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc)); | |
a66098da LB |
1189 | } |
1190 | ||
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | static inline void mwl8k_tx_start(struct mwl8k_priv *priv) | |
1195 | { | |
1196 | iowrite32(MWL8K_H2A_INT_PPA_READY, | |
1197 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1198 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1199 | priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1200 | ioread32(priv->regs + MWL8K_HIU_INT_CODE); | |
1201 | } | |
1202 | ||
7e1112d3 | 1203 | static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw) |
a66098da | 1204 | { |
7e1112d3 LB |
1205 | struct mwl8k_priv *priv = hw->priv; |
1206 | int i; | |
1207 | ||
1208 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { | |
1209 | struct mwl8k_tx_queue *txq = priv->txq + i; | |
1210 | int fw_owned = 0; | |
1211 | int drv_owned = 0; | |
1212 | int unused = 0; | |
1213 | int desc; | |
1214 | ||
a66098da | 1215 | for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { |
7e1112d3 LB |
1216 | struct mwl8k_tx_desc *tx_desc = txq->txd + desc; |
1217 | u32 status; | |
a66098da | 1218 | |
7e1112d3 | 1219 | status = le32_to_cpu(tx_desc->status); |
a66098da | 1220 | if (status & MWL8K_TXD_STATUS_FW_OWNED) |
7e1112d3 | 1221 | fw_owned++; |
a66098da | 1222 | else |
7e1112d3 | 1223 | drv_owned++; |
a66098da LB |
1224 | |
1225 | if (tx_desc->pkt_len == 0) | |
7e1112d3 | 1226 | unused++; |
a66098da | 1227 | } |
a66098da | 1228 | |
7e1112d3 LB |
1229 | printk(KERN_ERR "%s: txq[%d] len=%d head=%d tail=%d " |
1230 | "fw_owned=%d drv_owned=%d unused=%d\n", | |
1231 | wiphy_name(hw->wiphy), i, | |
1232 | txq->stats.len, txq->head, txq->tail, | |
1233 | fw_owned, drv_owned, unused); | |
1234 | } | |
a66098da LB |
1235 | } |
1236 | ||
618952a7 | 1237 | /* |
88de754a | 1238 | * Must be called with priv->fw_mutex held and tx queues stopped. |
618952a7 | 1239 | */ |
7e1112d3 LB |
1240 | #define MWL8K_TX_WAIT_TIMEOUT_MS 1000 |
1241 | ||
950d5b01 | 1242 | static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) |
a66098da | 1243 | { |
a66098da | 1244 | struct mwl8k_priv *priv = hw->priv; |
88de754a | 1245 | DECLARE_COMPLETION_ONSTACK(tx_wait); |
7e1112d3 LB |
1246 | int retry; |
1247 | int rc; | |
a66098da LB |
1248 | |
1249 | might_sleep(); | |
1250 | ||
7e1112d3 LB |
1251 | /* |
1252 | * The TX queues are stopped at this point, so this test | |
1253 | * doesn't need to take ->tx_lock. | |
1254 | */ | |
1255 | if (!priv->pending_tx_pkts) | |
1256 | return 0; | |
1257 | ||
1258 | retry = 0; | |
1259 | rc = 0; | |
1260 | ||
a66098da | 1261 | spin_lock_bh(&priv->tx_lock); |
7e1112d3 LB |
1262 | priv->tx_wait = &tx_wait; |
1263 | while (!rc) { | |
1264 | int oldcount; | |
1265 | unsigned long timeout; | |
a66098da | 1266 | |
7e1112d3 | 1267 | oldcount = priv->pending_tx_pkts; |
a66098da | 1268 | |
7e1112d3 | 1269 | spin_unlock_bh(&priv->tx_lock); |
88de754a | 1270 | timeout = wait_for_completion_timeout(&tx_wait, |
7e1112d3 | 1271 | msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS)); |
a66098da | 1272 | spin_lock_bh(&priv->tx_lock); |
7e1112d3 LB |
1273 | |
1274 | if (timeout) { | |
1275 | WARN_ON(priv->pending_tx_pkts); | |
1276 | if (retry) { | |
1277 | printk(KERN_NOTICE "%s: tx rings drained\n", | |
1278 | wiphy_name(hw->wiphy)); | |
1279 | } | |
1280 | break; | |
1281 | } | |
1282 | ||
1283 | if (priv->pending_tx_pkts < oldcount) { | |
1284 | printk(KERN_NOTICE "%s: timeout waiting for tx " | |
1285 | "rings to drain (%d -> %d pkts), retrying\n", | |
1286 | wiphy_name(hw->wiphy), oldcount, | |
1287 | priv->pending_tx_pkts); | |
1288 | retry = 1; | |
1289 | continue; | |
1290 | } | |
1291 | ||
a66098da | 1292 | priv->tx_wait = NULL; |
a66098da | 1293 | |
7e1112d3 LB |
1294 | printk(KERN_ERR "%s: tx rings stuck for %d ms\n", |
1295 | wiphy_name(hw->wiphy), MWL8K_TX_WAIT_TIMEOUT_MS); | |
1296 | mwl8k_dump_tx_rings(hw); | |
1297 | ||
1298 | rc = -ETIMEDOUT; | |
a66098da | 1299 | } |
7e1112d3 | 1300 | spin_unlock_bh(&priv->tx_lock); |
a66098da | 1301 | |
7e1112d3 | 1302 | return rc; |
a66098da LB |
1303 | } |
1304 | ||
c23b5a69 LB |
1305 | #define MWL8K_TXD_SUCCESS(status) \ |
1306 | ((status) & (MWL8K_TXD_STATUS_OK | \ | |
1307 | MWL8K_TXD_STATUS_OK_RETRY | \ | |
1308 | MWL8K_TXD_STATUS_OK_MORE_RETRY)) | |
a66098da LB |
1309 | |
1310 | static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) | |
1311 | { | |
1312 | struct mwl8k_priv *priv = hw->priv; | |
1313 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1314 | int wake = 0; | |
1315 | ||
45eb400d | 1316 | while (txq->stats.len > 0) { |
a66098da | 1317 | int tx; |
a66098da LB |
1318 | struct mwl8k_tx_desc *tx_desc; |
1319 | unsigned long addr; | |
ce9e2e1b | 1320 | int size; |
a66098da LB |
1321 | struct sk_buff *skb; |
1322 | struct ieee80211_tx_info *info; | |
1323 | u32 status; | |
1324 | ||
45eb400d LB |
1325 | tx = txq->head; |
1326 | tx_desc = txq->txd + tx; | |
a66098da LB |
1327 | |
1328 | status = le32_to_cpu(tx_desc->status); | |
1329 | ||
1330 | if (status & MWL8K_TXD_STATUS_FW_OWNED) { | |
1331 | if (!force) | |
1332 | break; | |
1333 | tx_desc->status &= | |
1334 | ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); | |
1335 | } | |
1336 | ||
45eb400d LB |
1337 | txq->head = (tx + 1) % MWL8K_TX_DESCS; |
1338 | BUG_ON(txq->stats.len == 0); | |
1339 | txq->stats.len--; | |
a66098da LB |
1340 | priv->pending_tx_pkts--; |
1341 | ||
1342 | addr = le32_to_cpu(tx_desc->pkt_phys_addr); | |
ce9e2e1b | 1343 | size = le16_to_cpu(tx_desc->pkt_len); |
45eb400d LB |
1344 | skb = txq->skb[tx]; |
1345 | txq->skb[tx] = NULL; | |
a66098da LB |
1346 | |
1347 | BUG_ON(skb == NULL); | |
1348 | pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); | |
1349 | ||
20f09c3d | 1350 | mwl8k_remove_dma_header(skb, tx_desc->qos_control); |
a66098da LB |
1351 | |
1352 | /* Mark descriptor as unused */ | |
1353 | tx_desc->pkt_phys_addr = 0; | |
1354 | tx_desc->pkt_len = 0; | |
1355 | ||
a66098da LB |
1356 | info = IEEE80211_SKB_CB(skb); |
1357 | ieee80211_tx_info_clear_status(info); | |
ce9e2e1b | 1358 | if (MWL8K_TXD_SUCCESS(status)) |
a66098da | 1359 | info->flags |= IEEE80211_TX_STAT_ACK; |
a66098da LB |
1360 | |
1361 | ieee80211_tx_status_irqsafe(hw, skb); | |
1362 | ||
618952a7 | 1363 | wake = 1; |
a66098da LB |
1364 | } |
1365 | ||
618952a7 | 1366 | if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex)) |
a66098da LB |
1367 | ieee80211_wake_queue(hw, index); |
1368 | } | |
1369 | ||
1370 | /* must be called only when the card's transmit is completely halted */ | |
1371 | static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) | |
1372 | { | |
1373 | struct mwl8k_priv *priv = hw->priv; | |
1374 | struct mwl8k_tx_queue *txq = priv->txq + index; | |
1375 | ||
1376 | mwl8k_txq_reclaim(hw, index, 1); | |
1377 | ||
45eb400d LB |
1378 | kfree(txq->skb); |
1379 | txq->skb = NULL; | |
a66098da LB |
1380 | |
1381 | pci_free_consistent(priv->pdev, | |
1382 | MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), | |
45eb400d LB |
1383 | txq->txd, txq->txd_dma); |
1384 | txq->txd = NULL; | |
a66098da LB |
1385 | } |
1386 | ||
1387 | static int | |
1388 | mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) | |
1389 | { | |
1390 | struct mwl8k_priv *priv = hw->priv; | |
1391 | struct ieee80211_tx_info *tx_info; | |
23b33906 | 1392 | struct mwl8k_vif *mwl8k_vif; |
a66098da LB |
1393 | struct ieee80211_hdr *wh; |
1394 | struct mwl8k_tx_queue *txq; | |
1395 | struct mwl8k_tx_desc *tx; | |
a66098da | 1396 | dma_addr_t dma; |
23b33906 LB |
1397 | u32 txstatus; |
1398 | u8 txdatarate; | |
1399 | u16 qos; | |
a66098da | 1400 | |
23b33906 LB |
1401 | wh = (struct ieee80211_hdr *)skb->data; |
1402 | if (ieee80211_is_data_qos(wh->frame_control)) | |
1403 | qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); | |
1404 | else | |
1405 | qos = 0; | |
a66098da | 1406 | |
76266b2a | 1407 | mwl8k_add_dma_header(skb); |
23b33906 | 1408 | wh = &((struct mwl8k_dma_data *)skb->data)->wh; |
a66098da LB |
1409 | |
1410 | tx_info = IEEE80211_SKB_CB(skb); | |
1411 | mwl8k_vif = MWL8K_VIF(tx_info->control.vif); | |
a66098da LB |
1412 | |
1413 | if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1414 | u16 seqno = mwl8k_vif->seqno; | |
23b33906 | 1415 | |
a66098da LB |
1416 | wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
1417 | wh->seq_ctrl |= cpu_to_le16(seqno << 4); | |
1418 | mwl8k_vif->seqno = seqno++ % 4096; | |
1419 | } | |
1420 | ||
23b33906 LB |
1421 | /* Setup firmware control bit fields for each frame type. */ |
1422 | txstatus = 0; | |
1423 | txdatarate = 0; | |
1424 | if (ieee80211_is_mgmt(wh->frame_control) || | |
1425 | ieee80211_is_ctl(wh->frame_control)) { | |
1426 | txdatarate = 0; | |
e0493a8d | 1427 | qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP; |
23b33906 LB |
1428 | } else if (ieee80211_is_data(wh->frame_control)) { |
1429 | txdatarate = 1; | |
1430 | if (is_multicast_ether_addr(wh->addr1)) | |
1431 | txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX; | |
1432 | ||
e0493a8d | 1433 | qos &= ~MWL8K_QOS_ACK_POLICY_MASK; |
23b33906 | 1434 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) |
e0493a8d | 1435 | qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK; |
23b33906 | 1436 | else |
e0493a8d | 1437 | qos |= MWL8K_QOS_ACK_POLICY_NORMAL; |
23b33906 | 1438 | } |
a66098da LB |
1439 | |
1440 | dma = pci_map_single(priv->pdev, skb->data, | |
1441 | skb->len, PCI_DMA_TODEVICE); | |
1442 | ||
1443 | if (pci_dma_mapping_error(priv->pdev, dma)) { | |
1444 | printk(KERN_DEBUG "%s: failed to dma map skb, " | |
c2c357ce | 1445 | "dropping TX frame.\n", wiphy_name(hw->wiphy)); |
23b33906 | 1446 | dev_kfree_skb(skb); |
a66098da LB |
1447 | return NETDEV_TX_OK; |
1448 | } | |
1449 | ||
23b33906 | 1450 | spin_lock_bh(&priv->tx_lock); |
a66098da | 1451 | |
23b33906 | 1452 | txq = priv->txq + index; |
a66098da | 1453 | |
45eb400d LB |
1454 | BUG_ON(txq->skb[txq->tail] != NULL); |
1455 | txq->skb[txq->tail] = skb; | |
a66098da | 1456 | |
45eb400d | 1457 | tx = txq->txd + txq->tail; |
23b33906 LB |
1458 | tx->data_rate = txdatarate; |
1459 | tx->tx_priority = index; | |
a66098da | 1460 | tx->qos_control = cpu_to_le16(qos); |
a66098da LB |
1461 | tx->pkt_phys_addr = cpu_to_le32(dma); |
1462 | tx->pkt_len = cpu_to_le16(skb->len); | |
23b33906 LB |
1463 | tx->rate_info = 0; |
1464 | tx->peer_id = mwl8k_vif->peer_id; | |
a66098da | 1465 | wmb(); |
23b33906 LB |
1466 | tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); |
1467 | ||
45eb400d LB |
1468 | txq->stats.count++; |
1469 | txq->stats.len++; | |
a66098da | 1470 | priv->pending_tx_pkts++; |
a66098da | 1471 | |
45eb400d LB |
1472 | txq->tail++; |
1473 | if (txq->tail == MWL8K_TX_DESCS) | |
1474 | txq->tail = 0; | |
23b33906 | 1475 | |
45eb400d | 1476 | if (txq->head == txq->tail) |
a66098da LB |
1477 | ieee80211_stop_queue(hw, index); |
1478 | ||
23b33906 | 1479 | mwl8k_tx_start(priv); |
a66098da LB |
1480 | |
1481 | spin_unlock_bh(&priv->tx_lock); | |
1482 | ||
1483 | return NETDEV_TX_OK; | |
1484 | } | |
1485 | ||
1486 | ||
618952a7 LB |
1487 | /* |
1488 | * Firmware access. | |
1489 | * | |
1490 | * We have the following requirements for issuing firmware commands: | |
1491 | * - Some commands require that the packet transmit path is idle when | |
1492 | * the command is issued. (For simplicity, we'll just quiesce the | |
1493 | * transmit path for every command.) | |
1494 | * - There are certain sequences of commands that need to be issued to | |
1495 | * the hardware sequentially, with no other intervening commands. | |
1496 | * | |
1497 | * This leads to an implementation of a "firmware lock" as a mutex that | |
1498 | * can be taken recursively, and which is taken by both the low-level | |
1499 | * command submission function (mwl8k_post_cmd) as well as any users of | |
1500 | * that function that require issuing of an atomic sequence of commands, | |
1501 | * and quiesces the transmit path whenever it's taken. | |
1502 | */ | |
1503 | static int mwl8k_fw_lock(struct ieee80211_hw *hw) | |
1504 | { | |
1505 | struct mwl8k_priv *priv = hw->priv; | |
1506 | ||
1507 | if (priv->fw_mutex_owner != current) { | |
1508 | int rc; | |
1509 | ||
1510 | mutex_lock(&priv->fw_mutex); | |
1511 | ieee80211_stop_queues(hw); | |
1512 | ||
1513 | rc = mwl8k_tx_wait_empty(hw); | |
1514 | if (rc) { | |
1515 | ieee80211_wake_queues(hw); | |
1516 | mutex_unlock(&priv->fw_mutex); | |
1517 | ||
1518 | return rc; | |
1519 | } | |
1520 | ||
1521 | priv->fw_mutex_owner = current; | |
1522 | } | |
1523 | ||
1524 | priv->fw_mutex_depth++; | |
1525 | ||
1526 | return 0; | |
1527 | } | |
1528 | ||
1529 | static void mwl8k_fw_unlock(struct ieee80211_hw *hw) | |
1530 | { | |
1531 | struct mwl8k_priv *priv = hw->priv; | |
1532 | ||
1533 | if (!--priv->fw_mutex_depth) { | |
1534 | ieee80211_wake_queues(hw); | |
1535 | priv->fw_mutex_owner = NULL; | |
1536 | mutex_unlock(&priv->fw_mutex); | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | ||
a66098da LB |
1541 | /* |
1542 | * Command processing. | |
1543 | */ | |
1544 | ||
0c9cc640 LB |
1545 | /* Timeout firmware commands after 10s */ |
1546 | #define MWL8K_CMD_TIMEOUT_MS 10000 | |
a66098da LB |
1547 | |
1548 | static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) | |
1549 | { | |
1550 | DECLARE_COMPLETION_ONSTACK(cmd_wait); | |
1551 | struct mwl8k_priv *priv = hw->priv; | |
1552 | void __iomem *regs = priv->regs; | |
1553 | dma_addr_t dma_addr; | |
1554 | unsigned int dma_size; | |
1555 | int rc; | |
a66098da LB |
1556 | unsigned long timeout = 0; |
1557 | u8 buf[32]; | |
1558 | ||
c2c357ce | 1559 | cmd->result = 0xffff; |
a66098da LB |
1560 | dma_size = le16_to_cpu(cmd->length); |
1561 | dma_addr = pci_map_single(priv->pdev, cmd, dma_size, | |
1562 | PCI_DMA_BIDIRECTIONAL); | |
1563 | if (pci_dma_mapping_error(priv->pdev, dma_addr)) | |
1564 | return -ENOMEM; | |
1565 | ||
618952a7 | 1566 | rc = mwl8k_fw_lock(hw); |
39a1e42e LB |
1567 | if (rc) { |
1568 | pci_unmap_single(priv->pdev, dma_addr, dma_size, | |
1569 | PCI_DMA_BIDIRECTIONAL); | |
618952a7 | 1570 | return rc; |
39a1e42e | 1571 | } |
a66098da | 1572 | |
a66098da LB |
1573 | priv->hostcmd_wait = &cmd_wait; |
1574 | iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); | |
1575 | iowrite32(MWL8K_H2A_INT_DOORBELL, | |
1576 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
1577 | iowrite32(MWL8K_H2A_INT_DUMMY, | |
1578 | regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); | |
a66098da LB |
1579 | |
1580 | timeout = wait_for_completion_timeout(&cmd_wait, | |
1581 | msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); | |
1582 | ||
618952a7 LB |
1583 | priv->hostcmd_wait = NULL; |
1584 | ||
1585 | mwl8k_fw_unlock(hw); | |
1586 | ||
37055bd4 LB |
1587 | pci_unmap_single(priv->pdev, dma_addr, dma_size, |
1588 | PCI_DMA_BIDIRECTIONAL); | |
1589 | ||
a66098da | 1590 | if (!timeout) { |
a66098da | 1591 | printk(KERN_ERR "%s: Command %s timeout after %u ms\n", |
c2c357ce | 1592 | wiphy_name(hw->wiphy), |
a66098da LB |
1593 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
1594 | MWL8K_CMD_TIMEOUT_MS); | |
1595 | rc = -ETIMEDOUT; | |
1596 | } else { | |
0c9cc640 LB |
1597 | int ms; |
1598 | ||
1599 | ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout); | |
1600 | ||
ce9e2e1b | 1601 | rc = cmd->result ? -EINVAL : 0; |
a66098da LB |
1602 | if (rc) |
1603 | printk(KERN_ERR "%s: Command %s error 0x%x\n", | |
c2c357ce | 1604 | wiphy_name(hw->wiphy), |
a66098da | 1605 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), |
76c962a2 | 1606 | le16_to_cpu(cmd->result)); |
0c9cc640 LB |
1607 | else if (ms > 2000) |
1608 | printk(KERN_NOTICE "%s: Command %s took %d ms\n", | |
1609 | wiphy_name(hw->wiphy), | |
1610 | mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), | |
1611 | ms); | |
a66098da LB |
1612 | } |
1613 | ||
a66098da LB |
1614 | return rc; |
1615 | } | |
1616 | ||
1617 | /* | |
04b147b1 | 1618 | * CMD_GET_HW_SPEC (STA version). |
a66098da | 1619 | */ |
04b147b1 | 1620 | struct mwl8k_cmd_get_hw_spec_sta { |
a66098da LB |
1621 | struct mwl8k_cmd_pkt header; |
1622 | __u8 hw_rev; | |
1623 | __u8 host_interface; | |
1624 | __le16 num_mcaddrs; | |
d89173f2 | 1625 | __u8 perm_addr[ETH_ALEN]; |
a66098da LB |
1626 | __le16 region_code; |
1627 | __le32 fw_rev; | |
1628 | __le32 ps_cookie; | |
1629 | __le32 caps; | |
1630 | __u8 mcs_bitmap[16]; | |
1631 | __le32 rx_queue_ptr; | |
1632 | __le32 num_tx_queues; | |
1633 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1634 | __le32 caps2; | |
1635 | __le32 num_tx_desc_per_queue; | |
45eb400d | 1636 | __le32 total_rxd; |
a66098da LB |
1637 | } __attribute__((packed)); |
1638 | ||
04b147b1 | 1639 | static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw) |
a66098da LB |
1640 | { |
1641 | struct mwl8k_priv *priv = hw->priv; | |
04b147b1 | 1642 | struct mwl8k_cmd_get_hw_spec_sta *cmd; |
a66098da LB |
1643 | int rc; |
1644 | int i; | |
1645 | ||
1646 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1647 | if (cmd == NULL) | |
1648 | return -ENOMEM; | |
1649 | ||
1650 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1651 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1652 | ||
1653 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1654 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
45eb400d | 1655 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); |
4ff6432e | 1656 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); |
a66098da | 1657 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
45eb400d | 1658 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); |
4ff6432e | 1659 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); |
45eb400d | 1660 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); |
a66098da LB |
1661 | |
1662 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1663 | ||
1664 | if (!rc) { | |
1665 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1666 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
4ff6432e | 1667 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); |
a66098da | 1668 | priv->hw_rev = cmd->hw_rev; |
a66098da LB |
1669 | } |
1670 | ||
1671 | kfree(cmd); | |
1672 | return rc; | |
1673 | } | |
1674 | ||
42fba21d LB |
1675 | /* |
1676 | * CMD_GET_HW_SPEC (AP version). | |
1677 | */ | |
1678 | struct mwl8k_cmd_get_hw_spec_ap { | |
1679 | struct mwl8k_cmd_pkt header; | |
1680 | __u8 hw_rev; | |
1681 | __u8 host_interface; | |
1682 | __le16 num_wcb; | |
1683 | __le16 num_mcaddrs; | |
1684 | __u8 perm_addr[ETH_ALEN]; | |
1685 | __le16 region_code; | |
1686 | __le16 num_antenna; | |
1687 | __le32 fw_rev; | |
1688 | __le32 wcbbase0; | |
1689 | __le32 rxwrptr; | |
1690 | __le32 rxrdptr; | |
1691 | __le32 ps_cookie; | |
1692 | __le32 wcbbase1; | |
1693 | __le32 wcbbase2; | |
1694 | __le32 wcbbase3; | |
1695 | } __attribute__((packed)); | |
1696 | ||
1697 | static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) | |
1698 | { | |
1699 | struct mwl8k_priv *priv = hw->priv; | |
1700 | struct mwl8k_cmd_get_hw_spec_ap *cmd; | |
1701 | int rc; | |
1702 | ||
1703 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1704 | if (cmd == NULL) | |
1705 | return -ENOMEM; | |
1706 | ||
1707 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); | |
1708 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1709 | ||
1710 | memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); | |
1711 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1712 | ||
1713 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1714 | ||
1715 | if (!rc) { | |
1716 | int off; | |
1717 | ||
1718 | SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); | |
1719 | priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); | |
1720 | priv->fw_rev = le32_to_cpu(cmd->fw_rev); | |
1721 | priv->hw_rev = cmd->hw_rev; | |
1722 | ||
1723 | off = le32_to_cpu(cmd->wcbbase0) & 0xffff; | |
1724 | iowrite32(cpu_to_le32(priv->txq[0].txd_dma), priv->sram + off); | |
1725 | ||
1726 | off = le32_to_cpu(cmd->rxwrptr) & 0xffff; | |
1727 | iowrite32(cpu_to_le32(priv->rxq[0].rxd_dma), priv->sram + off); | |
1728 | ||
1729 | off = le32_to_cpu(cmd->rxrdptr) & 0xffff; | |
1730 | iowrite32(cpu_to_le32(priv->rxq[0].rxd_dma), priv->sram + off); | |
1731 | ||
1732 | off = le32_to_cpu(cmd->wcbbase1) & 0xffff; | |
1733 | iowrite32(cpu_to_le32(priv->txq[1].txd_dma), priv->sram + off); | |
1734 | ||
1735 | off = le32_to_cpu(cmd->wcbbase2) & 0xffff; | |
1736 | iowrite32(cpu_to_le32(priv->txq[2].txd_dma), priv->sram + off); | |
1737 | ||
1738 | off = le32_to_cpu(cmd->wcbbase3) & 0xffff; | |
1739 | iowrite32(cpu_to_le32(priv->txq[3].txd_dma), priv->sram + off); | |
1740 | } | |
1741 | ||
1742 | kfree(cmd); | |
1743 | return rc; | |
1744 | } | |
1745 | ||
1746 | /* | |
1747 | * CMD_SET_HW_SPEC. | |
1748 | */ | |
1749 | struct mwl8k_cmd_set_hw_spec { | |
1750 | struct mwl8k_cmd_pkt header; | |
1751 | __u8 hw_rev; | |
1752 | __u8 host_interface; | |
1753 | __le16 num_mcaddrs; | |
1754 | __u8 perm_addr[ETH_ALEN]; | |
1755 | __le16 region_code; | |
1756 | __le32 fw_rev; | |
1757 | __le32 ps_cookie; | |
1758 | __le32 caps; | |
1759 | __le32 rx_queue_ptr; | |
1760 | __le32 num_tx_queues; | |
1761 | __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; | |
1762 | __le32 flags; | |
1763 | __le32 num_tx_desc_per_queue; | |
1764 | __le32 total_rxd; | |
1765 | } __attribute__((packed)); | |
1766 | ||
1767 | #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080 | |
1768 | ||
1769 | static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw) | |
1770 | { | |
1771 | struct mwl8k_priv *priv = hw->priv; | |
1772 | struct mwl8k_cmd_set_hw_spec *cmd; | |
1773 | int rc; | |
1774 | int i; | |
1775 | ||
1776 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1777 | if (cmd == NULL) | |
1778 | return -ENOMEM; | |
1779 | ||
1780 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC); | |
1781 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1782 | ||
1783 | cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); | |
1784 | cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma); | |
1785 | cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); | |
1786 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
1787 | cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma); | |
1788 | cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT); | |
1789 | cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); | |
1790 | cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS); | |
1791 | ||
1792 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1793 | kfree(cmd); | |
1794 | ||
1795 | return rc; | |
1796 | } | |
1797 | ||
a66098da LB |
1798 | /* |
1799 | * CMD_MAC_MULTICAST_ADR. | |
1800 | */ | |
1801 | struct mwl8k_cmd_mac_multicast_adr { | |
1802 | struct mwl8k_cmd_pkt header; | |
1803 | __le16 action; | |
1804 | __le16 numaddr; | |
ce9e2e1b | 1805 | __u8 addr[0][ETH_ALEN]; |
a66098da LB |
1806 | }; |
1807 | ||
d5e30845 LB |
1808 | #define MWL8K_ENABLE_RX_DIRECTED 0x0001 |
1809 | #define MWL8K_ENABLE_RX_MULTICAST 0x0002 | |
1810 | #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004 | |
1811 | #define MWL8K_ENABLE_RX_BROADCAST 0x0008 | |
ce9e2e1b | 1812 | |
e81cd2d6 | 1813 | static struct mwl8k_cmd_pkt * |
447ced07 | 1814 | __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti, |
e81cd2d6 | 1815 | int mc_count, struct dev_addr_list *mclist) |
a66098da | 1816 | { |
e81cd2d6 | 1817 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1818 | struct mwl8k_cmd_mac_multicast_adr *cmd; |
e81cd2d6 | 1819 | int size; |
e81cd2d6 | 1820 | |
447ced07 | 1821 | if (allmulti || mc_count > priv->num_mcaddrs) { |
d5e30845 LB |
1822 | allmulti = 1; |
1823 | mc_count = 0; | |
1824 | } | |
e81cd2d6 LB |
1825 | |
1826 | size = sizeof(*cmd) + mc_count * ETH_ALEN; | |
ce9e2e1b | 1827 | |
e81cd2d6 | 1828 | cmd = kzalloc(size, GFP_ATOMIC); |
a66098da | 1829 | if (cmd == NULL) |
e81cd2d6 | 1830 | return NULL; |
a66098da LB |
1831 | |
1832 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); | |
1833 | cmd->header.length = cpu_to_le16(size); | |
d5e30845 LB |
1834 | cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED | |
1835 | MWL8K_ENABLE_RX_BROADCAST); | |
1836 | ||
1837 | if (allmulti) { | |
1838 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST); | |
1839 | } else if (mc_count) { | |
1840 | int i; | |
1841 | ||
1842 | cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); | |
1843 | cmd->numaddr = cpu_to_le16(mc_count); | |
1844 | for (i = 0; i < mc_count && mclist; i++) { | |
1845 | if (mclist->da_addrlen != ETH_ALEN) { | |
1846 | kfree(cmd); | |
1847 | return NULL; | |
1848 | } | |
1849 | memcpy(cmd->addr[i], mclist->da_addr, ETH_ALEN); | |
1850 | mclist = mclist->next; | |
a66098da | 1851 | } |
a66098da LB |
1852 | } |
1853 | ||
e81cd2d6 | 1854 | return &cmd->header; |
a66098da LB |
1855 | } |
1856 | ||
1857 | /* | |
55489b6e | 1858 | * CMD_GET_STAT. |
a66098da | 1859 | */ |
55489b6e | 1860 | struct mwl8k_cmd_get_stat { |
a66098da | 1861 | struct mwl8k_cmd_pkt header; |
a66098da LB |
1862 | __le32 stats[64]; |
1863 | } __attribute__((packed)); | |
1864 | ||
1865 | #define MWL8K_STAT_ACK_FAILURE 9 | |
1866 | #define MWL8K_STAT_RTS_FAILURE 12 | |
1867 | #define MWL8K_STAT_FCS_ERROR 24 | |
1868 | #define MWL8K_STAT_RTS_SUCCESS 11 | |
1869 | ||
55489b6e LB |
1870 | static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw, |
1871 | struct ieee80211_low_level_stats *stats) | |
a66098da | 1872 | { |
55489b6e | 1873 | struct mwl8k_cmd_get_stat *cmd; |
a66098da LB |
1874 | int rc; |
1875 | ||
1876 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1877 | if (cmd == NULL) | |
1878 | return -ENOMEM; | |
1879 | ||
1880 | cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); | |
1881 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
1882 | |
1883 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1884 | if (!rc) { | |
1885 | stats->dot11ACKFailureCount = | |
1886 | le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); | |
1887 | stats->dot11RTSFailureCount = | |
1888 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); | |
1889 | stats->dot11FCSErrorCount = | |
1890 | le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); | |
1891 | stats->dot11RTSSuccessCount = | |
1892 | le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); | |
1893 | } | |
1894 | kfree(cmd); | |
1895 | ||
1896 | return rc; | |
1897 | } | |
1898 | ||
1899 | /* | |
55489b6e | 1900 | * CMD_RADIO_CONTROL. |
a66098da | 1901 | */ |
55489b6e | 1902 | struct mwl8k_cmd_radio_control { |
a66098da LB |
1903 | struct mwl8k_cmd_pkt header; |
1904 | __le16 action; | |
1905 | __le16 control; | |
1906 | __le16 radio_on; | |
1907 | } __attribute__((packed)); | |
1908 | ||
c46563b7 | 1909 | static int |
55489b6e | 1910 | mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force) |
a66098da LB |
1911 | { |
1912 | struct mwl8k_priv *priv = hw->priv; | |
55489b6e | 1913 | struct mwl8k_cmd_radio_control *cmd; |
a66098da LB |
1914 | int rc; |
1915 | ||
c46563b7 | 1916 | if (enable == priv->radio_on && !force) |
a66098da LB |
1917 | return 0; |
1918 | ||
a66098da LB |
1919 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
1920 | if (cmd == NULL) | |
1921 | return -ENOMEM; | |
1922 | ||
1923 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); | |
1924 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1925 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
68ce3884 | 1926 | cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1); |
a66098da LB |
1927 | cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); |
1928 | ||
1929 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1930 | kfree(cmd); | |
1931 | ||
1932 | if (!rc) | |
c46563b7 | 1933 | priv->radio_on = enable; |
a66098da LB |
1934 | |
1935 | return rc; | |
1936 | } | |
1937 | ||
55489b6e | 1938 | static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw) |
c46563b7 | 1939 | { |
55489b6e | 1940 | return mwl8k_cmd_radio_control(hw, 0, 0); |
c46563b7 LB |
1941 | } |
1942 | ||
55489b6e | 1943 | static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw) |
c46563b7 | 1944 | { |
55489b6e | 1945 | return mwl8k_cmd_radio_control(hw, 1, 0); |
c46563b7 LB |
1946 | } |
1947 | ||
a66098da LB |
1948 | static int |
1949 | mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) | |
1950 | { | |
99200a99 | 1951 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 1952 | |
68ce3884 | 1953 | priv->radio_short_preamble = short_preamble; |
a66098da | 1954 | |
55489b6e | 1955 | return mwl8k_cmd_radio_control(hw, 1, 1); |
a66098da LB |
1956 | } |
1957 | ||
1958 | /* | |
55489b6e | 1959 | * CMD_RF_TX_POWER. |
a66098da LB |
1960 | */ |
1961 | #define MWL8K_TX_POWER_LEVEL_TOTAL 8 | |
1962 | ||
55489b6e | 1963 | struct mwl8k_cmd_rf_tx_power { |
a66098da LB |
1964 | struct mwl8k_cmd_pkt header; |
1965 | __le16 action; | |
1966 | __le16 support_level; | |
1967 | __le16 current_level; | |
1968 | __le16 reserved; | |
1969 | __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; | |
1970 | } __attribute__((packed)); | |
1971 | ||
55489b6e | 1972 | static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm) |
a66098da | 1973 | { |
55489b6e | 1974 | struct mwl8k_cmd_rf_tx_power *cmd; |
a66098da LB |
1975 | int rc; |
1976 | ||
1977 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
1978 | if (cmd == NULL) | |
1979 | return -ENOMEM; | |
1980 | ||
1981 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); | |
1982 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
1983 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
1984 | cmd->support_level = cpu_to_le16(dBm); | |
1985 | ||
1986 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
1987 | kfree(cmd); | |
1988 | ||
1989 | return rc; | |
1990 | } | |
1991 | ||
08b06347 LB |
1992 | /* |
1993 | * CMD_RF_ANTENNA. | |
1994 | */ | |
1995 | struct mwl8k_cmd_rf_antenna { | |
1996 | struct mwl8k_cmd_pkt header; | |
1997 | __le16 antenna; | |
1998 | __le16 mode; | |
1999 | } __attribute__((packed)); | |
2000 | ||
2001 | #define MWL8K_RF_ANTENNA_RX 1 | |
2002 | #define MWL8K_RF_ANTENNA_TX 2 | |
2003 | ||
2004 | static int | |
2005 | mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask) | |
2006 | { | |
2007 | struct mwl8k_cmd_rf_antenna *cmd; | |
2008 | int rc; | |
2009 | ||
2010 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2011 | if (cmd == NULL) | |
2012 | return -ENOMEM; | |
2013 | ||
2014 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA); | |
2015 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2016 | cmd->antenna = cpu_to_le16(antenna); | |
2017 | cmd->mode = cpu_to_le16(mask); | |
2018 | ||
2019 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2020 | kfree(cmd); | |
2021 | ||
2022 | return rc; | |
2023 | } | |
2024 | ||
a66098da LB |
2025 | /* |
2026 | * CMD_SET_PRE_SCAN. | |
2027 | */ | |
2028 | struct mwl8k_cmd_set_pre_scan { | |
2029 | struct mwl8k_cmd_pkt header; | |
2030 | } __attribute__((packed)); | |
2031 | ||
2032 | static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) | |
2033 | { | |
2034 | struct mwl8k_cmd_set_pre_scan *cmd; | |
2035 | int rc; | |
2036 | ||
2037 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2038 | if (cmd == NULL) | |
2039 | return -ENOMEM; | |
2040 | ||
2041 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); | |
2042 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2043 | ||
2044 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2045 | kfree(cmd); | |
2046 | ||
2047 | return rc; | |
2048 | } | |
2049 | ||
2050 | /* | |
2051 | * CMD_SET_POST_SCAN. | |
2052 | */ | |
2053 | struct mwl8k_cmd_set_post_scan { | |
2054 | struct mwl8k_cmd_pkt header; | |
2055 | __le32 isibss; | |
d89173f2 | 2056 | __u8 bssid[ETH_ALEN]; |
a66098da LB |
2057 | } __attribute__((packed)); |
2058 | ||
2059 | static int | |
ce9e2e1b | 2060 | mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac) |
a66098da LB |
2061 | { |
2062 | struct mwl8k_cmd_set_post_scan *cmd; | |
2063 | int rc; | |
2064 | ||
2065 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2066 | if (cmd == NULL) | |
2067 | return -ENOMEM; | |
2068 | ||
2069 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); | |
2070 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2071 | cmd->isibss = 0; | |
d89173f2 | 2072 | memcpy(cmd->bssid, mac, ETH_ALEN); |
a66098da LB |
2073 | |
2074 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2075 | kfree(cmd); | |
2076 | ||
2077 | return rc; | |
2078 | } | |
2079 | ||
2080 | /* | |
2081 | * CMD_SET_RF_CHANNEL. | |
2082 | */ | |
2083 | struct mwl8k_cmd_set_rf_channel { | |
2084 | struct mwl8k_cmd_pkt header; | |
2085 | __le16 action; | |
2086 | __u8 current_channel; | |
2087 | __le32 channel_flags; | |
2088 | } __attribute__((packed)); | |
2089 | ||
2090 | static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, | |
2091 | struct ieee80211_channel *channel) | |
2092 | { | |
2093 | struct mwl8k_cmd_set_rf_channel *cmd; | |
2094 | int rc; | |
2095 | ||
2096 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2097 | if (cmd == NULL) | |
2098 | return -ENOMEM; | |
2099 | ||
2100 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); | |
2101 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2102 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2103 | cmd->current_channel = channel->hw_value; | |
2104 | if (channel->band == IEEE80211_BAND_2GHZ) | |
2105 | cmd->channel_flags = cpu_to_le32(0x00000081); | |
2106 | else | |
2107 | cmd->channel_flags = cpu_to_le32(0x00000000); | |
2108 | ||
2109 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2110 | kfree(cmd); | |
2111 | ||
2112 | return rc; | |
2113 | } | |
2114 | ||
2115 | /* | |
55489b6e | 2116 | * CMD_SET_AID. |
a66098da | 2117 | */ |
55489b6e LB |
2118 | #define MWL8K_FRAME_PROT_DISABLED 0x00 |
2119 | #define MWL8K_FRAME_PROT_11G 0x07 | |
2120 | #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 | |
2121 | #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 | |
a66098da | 2122 | |
55489b6e LB |
2123 | struct mwl8k_cmd_update_set_aid { |
2124 | struct mwl8k_cmd_pkt header; | |
2125 | __le16 aid; | |
a66098da | 2126 | |
55489b6e LB |
2127 | /* AP's MAC address (BSSID) */ |
2128 | __u8 bssid[ETH_ALEN]; | |
2129 | __le16 protection_mode; | |
2130 | __u8 supp_rates[14]; | |
a66098da LB |
2131 | } __attribute__((packed)); |
2132 | ||
55489b6e LB |
2133 | static int |
2134 | mwl8k_cmd_set_aid(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
a66098da | 2135 | { |
55489b6e LB |
2136 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); |
2137 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2138 | struct mwl8k_cmd_update_set_aid *cmd; | |
2139 | u16 prot_mode; | |
a66098da LB |
2140 | int rc; |
2141 | ||
2142 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2143 | if (cmd == NULL) | |
2144 | return -ENOMEM; | |
2145 | ||
55489b6e | 2146 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); |
a66098da | 2147 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e | 2148 | cmd->aid = cpu_to_le16(info->aid); |
a66098da | 2149 | |
55489b6e | 2150 | memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); |
a66098da | 2151 | |
55489b6e LB |
2152 | if (info->use_cts_prot) { |
2153 | prot_mode = MWL8K_FRAME_PROT_11G; | |
2154 | } else { | |
2155 | switch (info->ht_operation_mode & | |
2156 | IEEE80211_HT_OP_MODE_PROTECTION) { | |
2157 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
2158 | prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; | |
2159 | break; | |
2160 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
2161 | prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; | |
2162 | break; | |
2163 | default: | |
2164 | prot_mode = MWL8K_FRAME_PROT_DISABLED; | |
2165 | break; | |
2166 | } | |
2167 | } | |
2168 | cmd->protection_mode = cpu_to_le16(prot_mode); | |
a66098da | 2169 | |
55489b6e | 2170 | memcpy(cmd->supp_rates, mwl8k_rateids, sizeof(mwl8k_rateids)); |
a66098da LB |
2171 | |
2172 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2173 | kfree(cmd); | |
2174 | ||
2175 | return rc; | |
2176 | } | |
2177 | ||
32060e1b | 2178 | /* |
55489b6e | 2179 | * CMD_SET_RATE. |
32060e1b | 2180 | */ |
55489b6e LB |
2181 | struct mwl8k_cmd_set_rate { |
2182 | struct mwl8k_cmd_pkt header; | |
2183 | __u8 legacy_rates[14]; | |
2184 | ||
2185 | /* Bitmap for supported MCS codes. */ | |
2186 | __u8 mcs_set[16]; | |
2187 | __u8 reserved[16]; | |
32060e1b LB |
2188 | } __attribute__((packed)); |
2189 | ||
55489b6e LB |
2190 | static int |
2191 | mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
32060e1b | 2192 | { |
55489b6e | 2193 | struct mwl8k_cmd_set_rate *cmd; |
32060e1b LB |
2194 | int rc; |
2195 | ||
2196 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2197 | if (cmd == NULL) | |
2198 | return -ENOMEM; | |
2199 | ||
55489b6e | 2200 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); |
32060e1b | 2201 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e | 2202 | memcpy(cmd->legacy_rates, mwl8k_rateids, sizeof(mwl8k_rateids)); |
32060e1b LB |
2203 | |
2204 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2205 | kfree(cmd); | |
2206 | ||
2207 | return rc; | |
2208 | } | |
2209 | ||
a66098da | 2210 | /* |
55489b6e | 2211 | * CMD_FINALIZE_JOIN. |
a66098da | 2212 | */ |
55489b6e LB |
2213 | #define MWL8K_FJ_BEACON_MAXLEN 128 |
2214 | ||
2215 | struct mwl8k_cmd_finalize_join { | |
a66098da | 2216 | struct mwl8k_cmd_pkt header; |
55489b6e LB |
2217 | __le32 sleep_interval; /* Number of beacon periods to sleep */ |
2218 | __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; | |
a66098da LB |
2219 | } __attribute__((packed)); |
2220 | ||
55489b6e LB |
2221 | static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame, |
2222 | int framelen, int dtim) | |
a66098da | 2223 | { |
55489b6e LB |
2224 | struct mwl8k_cmd_finalize_join *cmd; |
2225 | struct ieee80211_mgmt *payload = frame; | |
2226 | int payload_len; | |
a66098da LB |
2227 | int rc; |
2228 | ||
2229 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2230 | if (cmd == NULL) | |
2231 | return -ENOMEM; | |
2232 | ||
55489b6e | 2233 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); |
a66098da | 2234 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
2235 | cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); |
2236 | ||
2237 | payload_len = framelen - ieee80211_hdrlen(payload->frame_control); | |
2238 | if (payload_len < 0) | |
2239 | payload_len = 0; | |
2240 | else if (payload_len > MWL8K_FJ_BEACON_MAXLEN) | |
2241 | payload_len = MWL8K_FJ_BEACON_MAXLEN; | |
2242 | ||
2243 | memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); | |
a66098da LB |
2244 | |
2245 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2246 | kfree(cmd); | |
2247 | ||
2248 | return rc; | |
2249 | } | |
2250 | ||
2251 | /* | |
55489b6e | 2252 | * CMD_SET_RTS_THRESHOLD. |
a66098da | 2253 | */ |
55489b6e | 2254 | struct mwl8k_cmd_set_rts_threshold { |
a66098da LB |
2255 | struct mwl8k_cmd_pkt header; |
2256 | __le16 action; | |
55489b6e | 2257 | __le16 threshold; |
a66098da LB |
2258 | } __attribute__((packed)); |
2259 | ||
55489b6e LB |
2260 | static int mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, |
2261 | u16 action, u16 threshold) | |
a66098da | 2262 | { |
55489b6e | 2263 | struct mwl8k_cmd_set_rts_threshold *cmd; |
a66098da LB |
2264 | int rc; |
2265 | ||
2266 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2267 | if (cmd == NULL) | |
2268 | return -ENOMEM; | |
2269 | ||
55489b6e | 2270 | cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); |
a66098da | 2271 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
2272 | cmd->action = cpu_to_le16(action); |
2273 | cmd->threshold = cpu_to_le16(threshold); | |
a66098da LB |
2274 | |
2275 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2276 | kfree(cmd); | |
2277 | ||
a66098da LB |
2278 | return rc; |
2279 | } | |
2280 | ||
2281 | /* | |
55489b6e | 2282 | * CMD_SET_SLOT. |
a66098da | 2283 | */ |
55489b6e | 2284 | struct mwl8k_cmd_set_slot { |
a66098da LB |
2285 | struct mwl8k_cmd_pkt header; |
2286 | __le16 action; | |
55489b6e | 2287 | __u8 short_slot; |
a66098da LB |
2288 | } __attribute__((packed)); |
2289 | ||
55489b6e | 2290 | static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time) |
a66098da | 2291 | { |
55489b6e | 2292 | struct mwl8k_cmd_set_slot *cmd; |
a66098da LB |
2293 | int rc; |
2294 | ||
2295 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2296 | if (cmd == NULL) | |
2297 | return -ENOMEM; | |
2298 | ||
55489b6e | 2299 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); |
a66098da | 2300 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
2301 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); |
2302 | cmd->short_slot = short_slot_time; | |
a66098da LB |
2303 | |
2304 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2305 | kfree(cmd); | |
2306 | ||
2307 | return rc; | |
2308 | } | |
2309 | ||
2310 | /* | |
2311 | * CMD_SET_EDCA_PARAMS. | |
2312 | */ | |
2313 | struct mwl8k_cmd_set_edca_params { | |
2314 | struct mwl8k_cmd_pkt header; | |
2315 | ||
2316 | /* See MWL8K_SET_EDCA_XXX below */ | |
2317 | __le16 action; | |
2318 | ||
2319 | /* TX opportunity in units of 32 us */ | |
2320 | __le16 txop; | |
2321 | ||
2e484c89 LB |
2322 | union { |
2323 | struct { | |
2324 | /* Log exponent of max contention period: 0...15 */ | |
2325 | __le32 log_cw_max; | |
2326 | ||
2327 | /* Log exponent of min contention period: 0...15 */ | |
2328 | __le32 log_cw_min; | |
2329 | ||
2330 | /* Adaptive interframe spacing in units of 32us */ | |
2331 | __u8 aifs; | |
2332 | ||
2333 | /* TX queue to configure */ | |
2334 | __u8 txq; | |
2335 | } ap; | |
2336 | struct { | |
2337 | /* Log exponent of max contention period: 0...15 */ | |
2338 | __u8 log_cw_max; | |
a66098da | 2339 | |
2e484c89 LB |
2340 | /* Log exponent of min contention period: 0...15 */ |
2341 | __u8 log_cw_min; | |
a66098da | 2342 | |
2e484c89 LB |
2343 | /* Adaptive interframe spacing in units of 32us */ |
2344 | __u8 aifs; | |
a66098da | 2345 | |
2e484c89 LB |
2346 | /* TX queue to configure */ |
2347 | __u8 txq; | |
2348 | } sta; | |
2349 | }; | |
a66098da LB |
2350 | } __attribute__((packed)); |
2351 | ||
a66098da LB |
2352 | #define MWL8K_SET_EDCA_CW 0x01 |
2353 | #define MWL8K_SET_EDCA_TXOP 0x02 | |
2354 | #define MWL8K_SET_EDCA_AIFS 0x04 | |
2355 | ||
2356 | #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ | |
2357 | MWL8K_SET_EDCA_TXOP | \ | |
2358 | MWL8K_SET_EDCA_AIFS) | |
2359 | ||
2360 | static int | |
55489b6e LB |
2361 | mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, |
2362 | __u16 cw_min, __u16 cw_max, | |
2363 | __u8 aifs, __u16 txop) | |
a66098da | 2364 | { |
2e484c89 | 2365 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 2366 | struct mwl8k_cmd_set_edca_params *cmd; |
a66098da LB |
2367 | int rc; |
2368 | ||
2369 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2370 | if (cmd == NULL) | |
2371 | return -ENOMEM; | |
2372 | ||
22995b24 LB |
2373 | /* |
2374 | * Queues 0 (BE) and 1 (BK) are swapped in hardware for | |
2375 | * this call. | |
2376 | */ | |
2377 | qnum ^= !(qnum >> 1); | |
2378 | ||
a66098da LB |
2379 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); |
2380 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
a66098da LB |
2381 | cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); |
2382 | cmd->txop = cpu_to_le16(txop); | |
2e484c89 LB |
2383 | if (priv->ap_fw) { |
2384 | cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1)); | |
2385 | cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1)); | |
2386 | cmd->ap.aifs = aifs; | |
2387 | cmd->ap.txq = qnum; | |
2388 | } else { | |
2389 | cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1); | |
2390 | cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1); | |
2391 | cmd->sta.aifs = aifs; | |
2392 | cmd->sta.txq = qnum; | |
2393 | } | |
a66098da LB |
2394 | |
2395 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2396 | kfree(cmd); | |
2397 | ||
2398 | return rc; | |
2399 | } | |
2400 | ||
2401 | /* | |
55489b6e | 2402 | * CMD_SET_WMM_MODE. |
a66098da | 2403 | */ |
55489b6e | 2404 | struct mwl8k_cmd_set_wmm_mode { |
a66098da | 2405 | struct mwl8k_cmd_pkt header; |
55489b6e | 2406 | __le16 action; |
a66098da LB |
2407 | } __attribute__((packed)); |
2408 | ||
55489b6e | 2409 | static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable) |
a66098da | 2410 | { |
55489b6e LB |
2411 | struct mwl8k_priv *priv = hw->priv; |
2412 | struct mwl8k_cmd_set_wmm_mode *cmd; | |
a66098da LB |
2413 | int rc; |
2414 | ||
a66098da LB |
2415 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
2416 | if (cmd == NULL) | |
2417 | return -ENOMEM; | |
2418 | ||
55489b6e | 2419 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); |
a66098da | 2420 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e | 2421 | cmd->action = cpu_to_le16(!!enable); |
a66098da LB |
2422 | |
2423 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2424 | kfree(cmd); | |
16cec43d | 2425 | |
55489b6e LB |
2426 | if (!rc) |
2427 | priv->wmm_enabled = enable; | |
a66098da LB |
2428 | |
2429 | return rc; | |
2430 | } | |
2431 | ||
2432 | /* | |
55489b6e | 2433 | * CMD_MIMO_CONFIG. |
a66098da | 2434 | */ |
55489b6e LB |
2435 | struct mwl8k_cmd_mimo_config { |
2436 | struct mwl8k_cmd_pkt header; | |
2437 | __le32 action; | |
2438 | __u8 rx_antenna_map; | |
2439 | __u8 tx_antenna_map; | |
a66098da LB |
2440 | } __attribute__((packed)); |
2441 | ||
55489b6e | 2442 | static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) |
a66098da | 2443 | { |
55489b6e | 2444 | struct mwl8k_cmd_mimo_config *cmd; |
a66098da LB |
2445 | int rc; |
2446 | ||
2447 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2448 | if (cmd == NULL) | |
2449 | return -ENOMEM; | |
2450 | ||
55489b6e | 2451 | cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); |
a66098da | 2452 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); |
55489b6e LB |
2453 | cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); |
2454 | cmd->rx_antenna_map = rx; | |
2455 | cmd->tx_antenna_map = tx; | |
a66098da LB |
2456 | |
2457 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2458 | kfree(cmd); | |
2459 | ||
2460 | return rc; | |
2461 | } | |
2462 | ||
2463 | /* | |
2464 | * CMD_USE_FIXED_RATE. | |
2465 | */ | |
2466 | #define MWL8K_RATE_TABLE_SIZE 8 | |
2467 | #define MWL8K_UCAST_RATE 0 | |
a66098da LB |
2468 | #define MWL8K_USE_AUTO_RATE 0x0002 |
2469 | ||
2470 | struct mwl8k_rate_entry { | |
2471 | /* Set to 1 if HT rate, 0 if legacy. */ | |
2472 | __le32 is_ht_rate; | |
2473 | ||
2474 | /* Set to 1 to use retry_count field. */ | |
2475 | __le32 enable_retry; | |
2476 | ||
2477 | /* Specified legacy rate or MCS. */ | |
2478 | __le32 rate; | |
2479 | ||
2480 | /* Number of allowed retries. */ | |
2481 | __le32 retry_count; | |
2482 | } __attribute__((packed)); | |
2483 | ||
2484 | struct mwl8k_rate_table { | |
2485 | /* 1 to allow specified rate and below */ | |
2486 | __le32 allow_rate_drop; | |
2487 | __le32 num_rates; | |
2488 | struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; | |
2489 | } __attribute__((packed)); | |
2490 | ||
2491 | struct mwl8k_cmd_use_fixed_rate { | |
2492 | struct mwl8k_cmd_pkt header; | |
2493 | __le32 action; | |
2494 | struct mwl8k_rate_table rate_table; | |
2495 | ||
2496 | /* Unicast, Broadcast or Multicast */ | |
2497 | __le32 rate_type; | |
2498 | __le32 reserved1; | |
2499 | __le32 reserved2; | |
2500 | } __attribute__((packed)); | |
2501 | ||
2502 | static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, | |
2503 | u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) | |
2504 | { | |
2505 | struct mwl8k_cmd_use_fixed_rate *cmd; | |
2506 | int count; | |
2507 | int rc; | |
2508 | ||
2509 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2510 | if (cmd == NULL) | |
2511 | return -ENOMEM; | |
2512 | ||
2513 | cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); | |
2514 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2515 | ||
2516 | cmd->action = cpu_to_le32(action); | |
2517 | cmd->rate_type = cpu_to_le32(rate_type); | |
2518 | ||
2519 | if (rate_table != NULL) { | |
c2c357ce LB |
2520 | /* |
2521 | * Copy over each field manually so that endian | |
2522 | * conversion can be done. | |
2523 | */ | |
a66098da LB |
2524 | cmd->rate_table.allow_rate_drop = |
2525 | cpu_to_le32(rate_table->allow_rate_drop); | |
2526 | cmd->rate_table.num_rates = | |
2527 | cpu_to_le32(rate_table->num_rates); | |
2528 | ||
2529 | for (count = 0; count < rate_table->num_rates; count++) { | |
2530 | struct mwl8k_rate_entry *dst = | |
2531 | &cmd->rate_table.rate_entry[count]; | |
2532 | struct mwl8k_rate_entry *src = | |
2533 | &rate_table->rate_entry[count]; | |
2534 | ||
2535 | dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); | |
2536 | dst->enable_retry = cpu_to_le32(src->enable_retry); | |
2537 | dst->rate = cpu_to_le32(src->rate); | |
2538 | dst->retry_count = cpu_to_le32(src->retry_count); | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2543 | kfree(cmd); | |
2544 | ||
2545 | return rc; | |
2546 | } | |
2547 | ||
55489b6e LB |
2548 | /* |
2549 | * CMD_ENABLE_SNIFFER. | |
2550 | */ | |
2551 | struct mwl8k_cmd_enable_sniffer { | |
2552 | struct mwl8k_cmd_pkt header; | |
2553 | __le32 action; | |
2554 | } __attribute__((packed)); | |
2555 | ||
2556 | static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable) | |
2557 | { | |
2558 | struct mwl8k_cmd_enable_sniffer *cmd; | |
2559 | int rc; | |
2560 | ||
2561 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2562 | if (cmd == NULL) | |
2563 | return -ENOMEM; | |
2564 | ||
2565 | cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); | |
2566 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2567 | cmd->action = cpu_to_le32(!!enable); | |
2568 | ||
2569 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2570 | kfree(cmd); | |
2571 | ||
2572 | return rc; | |
2573 | } | |
2574 | ||
2575 | /* | |
2576 | * CMD_SET_MAC_ADDR. | |
2577 | */ | |
2578 | struct mwl8k_cmd_set_mac_addr { | |
2579 | struct mwl8k_cmd_pkt header; | |
2580 | union { | |
2581 | struct { | |
2582 | __le16 mac_type; | |
2583 | __u8 mac_addr[ETH_ALEN]; | |
2584 | } mbss; | |
2585 | __u8 mac_addr[ETH_ALEN]; | |
2586 | }; | |
2587 | } __attribute__((packed)); | |
2588 | ||
2589 | static int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw, u8 *mac) | |
2590 | { | |
2591 | struct mwl8k_priv *priv = hw->priv; | |
2592 | struct mwl8k_cmd_set_mac_addr *cmd; | |
2593 | int rc; | |
2594 | ||
2595 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2596 | if (cmd == NULL) | |
2597 | return -ENOMEM; | |
2598 | ||
2599 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR); | |
2600 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2601 | if (priv->ap_fw) { | |
2602 | cmd->mbss.mac_type = 0; | |
2603 | memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN); | |
2604 | } else { | |
2605 | memcpy(cmd->mac_addr, mac, ETH_ALEN); | |
2606 | } | |
2607 | ||
2608 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2609 | kfree(cmd); | |
2610 | ||
2611 | return rc; | |
2612 | } | |
2613 | ||
2614 | /* | |
2615 | * CMD_SET_RATEADAPT_MODE. | |
2616 | */ | |
2617 | struct mwl8k_cmd_set_rate_adapt_mode { | |
2618 | struct mwl8k_cmd_pkt header; | |
2619 | __le16 action; | |
2620 | __le16 mode; | |
2621 | } __attribute__((packed)); | |
2622 | ||
2623 | static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode) | |
2624 | { | |
2625 | struct mwl8k_cmd_set_rate_adapt_mode *cmd; | |
2626 | int rc; | |
2627 | ||
2628 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2629 | if (cmd == NULL) | |
2630 | return -ENOMEM; | |
2631 | ||
2632 | cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); | |
2633 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2634 | cmd->action = cpu_to_le16(MWL8K_CMD_SET); | |
2635 | cmd->mode = cpu_to_le16(mode); | |
2636 | ||
2637 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2638 | kfree(cmd); | |
2639 | ||
2640 | return rc; | |
2641 | } | |
2642 | ||
2643 | /* | |
2644 | * CMD_UPDATE_STADB. | |
2645 | */ | |
2646 | struct mwl8k_cmd_update_stadb { | |
2647 | struct mwl8k_cmd_pkt header; | |
2648 | ||
2649 | /* See STADB_ACTION_TYPE */ | |
2650 | __le32 action; | |
2651 | ||
2652 | /* Peer MAC address */ | |
2653 | __u8 peer_addr[ETH_ALEN]; | |
2654 | ||
2655 | __le32 reserved; | |
2656 | ||
2657 | /* Peer info - valid during add/update. */ | |
2658 | struct peer_capability_info peer_info; | |
2659 | } __attribute__((packed)); | |
2660 | ||
2661 | static int mwl8k_cmd_update_stadb(struct ieee80211_hw *hw, | |
2662 | struct ieee80211_vif *vif, __u32 action) | |
2663 | { | |
2664 | struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); | |
2665 | struct ieee80211_bss_conf *info = &mv_vif->bss_info; | |
2666 | struct mwl8k_cmd_update_stadb *cmd; | |
2667 | struct peer_capability_info *peer_info; | |
2668 | int rc; | |
2669 | ||
2670 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
2671 | if (cmd == NULL) | |
2672 | return -ENOMEM; | |
2673 | ||
2674 | cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); | |
2675 | cmd->header.length = cpu_to_le16(sizeof(*cmd)); | |
2676 | ||
2677 | cmd->action = cpu_to_le32(action); | |
2678 | peer_info = &cmd->peer_info; | |
2679 | memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN); | |
2680 | ||
2681 | switch (action) { | |
2682 | case MWL8K_STA_DB_ADD_ENTRY: | |
2683 | case MWL8K_STA_DB_MODIFY_ENTRY: | |
2684 | /* Build peer_info block */ | |
2685 | peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; | |
2686 | peer_info->basic_caps = cpu_to_le16(info->assoc_capability); | |
2687 | memcpy(peer_info->legacy_rates, mwl8k_rateids, | |
2688 | sizeof(mwl8k_rateids)); | |
2689 | peer_info->interop = 1; | |
2690 | peer_info->amsdu_enabled = 0; | |
2691 | ||
2692 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2693 | if (rc == 0) | |
2694 | mv_vif->peer_id = peer_info->station_id; | |
2695 | ||
2696 | break; | |
2697 | ||
2698 | case MWL8K_STA_DB_DEL_ENTRY: | |
2699 | case MWL8K_STA_DB_FLUSH: | |
2700 | default: | |
2701 | rc = mwl8k_post_cmd(hw, &cmd->header); | |
2702 | if (rc == 0) | |
2703 | mv_vif->peer_id = 0; | |
2704 | break; | |
2705 | } | |
2706 | kfree(cmd); | |
2707 | ||
2708 | return rc; | |
2709 | } | |
2710 | ||
a66098da LB |
2711 | |
2712 | /* | |
2713 | * Interrupt handling. | |
2714 | */ | |
2715 | static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) | |
2716 | { | |
2717 | struct ieee80211_hw *hw = dev_id; | |
2718 | struct mwl8k_priv *priv = hw->priv; | |
2719 | u32 status; | |
2720 | ||
2721 | status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2722 | iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
2723 | ||
a66098da LB |
2724 | if (!status) |
2725 | return IRQ_NONE; | |
2726 | ||
2727 | if (status & MWL8K_A2H_INT_TX_DONE) | |
2728 | tasklet_schedule(&priv->tx_reclaim_task); | |
2729 | ||
2730 | if (status & MWL8K_A2H_INT_RX_READY) { | |
2731 | while (rxq_process(hw, 0, 1)) | |
2732 | rxq_refill(hw, 0, 1); | |
2733 | } | |
2734 | ||
2735 | if (status & MWL8K_A2H_INT_OPC_DONE) { | |
618952a7 | 2736 | if (priv->hostcmd_wait != NULL) |
a66098da | 2737 | complete(priv->hostcmd_wait); |
a66098da LB |
2738 | } |
2739 | ||
2740 | if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { | |
618952a7 | 2741 | if (!mutex_is_locked(&priv->fw_mutex) && |
88de754a | 2742 | priv->radio_on && priv->pending_tx_pkts) |
618952a7 | 2743 | mwl8k_tx_start(priv); |
a66098da LB |
2744 | } |
2745 | ||
2746 | return IRQ_HANDLED; | |
2747 | } | |
2748 | ||
2749 | ||
2750 | /* | |
2751 | * Core driver operations. | |
2752 | */ | |
2753 | static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
2754 | { | |
2755 | struct mwl8k_priv *priv = hw->priv; | |
2756 | int index = skb_get_queue_mapping(skb); | |
2757 | int rc; | |
2758 | ||
2759 | if (priv->current_channel == NULL) { | |
2760 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
c2c357ce | 2761 | "disabled\n", wiphy_name(hw->wiphy)); |
a66098da LB |
2762 | dev_kfree_skb(skb); |
2763 | return NETDEV_TX_OK; | |
2764 | } | |
2765 | ||
2766 | rc = mwl8k_txq_xmit(hw, index, skb); | |
2767 | ||
2768 | return rc; | |
2769 | } | |
2770 | ||
a66098da LB |
2771 | static int mwl8k_start(struct ieee80211_hw *hw) |
2772 | { | |
a66098da LB |
2773 | struct mwl8k_priv *priv = hw->priv; |
2774 | int rc; | |
2775 | ||
a0607fd3 | 2776 | rc = request_irq(priv->pdev->irq, mwl8k_interrupt, |
a66098da LB |
2777 | IRQF_SHARED, MWL8K_NAME, hw); |
2778 | if (rc) { | |
2779 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 2780 | wiphy_name(hw->wiphy)); |
2ec610cb | 2781 | return -EIO; |
a66098da LB |
2782 | } |
2783 | ||
2ec610cb LB |
2784 | /* Enable tx reclaim tasklet */ |
2785 | tasklet_enable(&priv->tx_reclaim_task); | |
2786 | ||
a66098da | 2787 | /* Enable interrupts */ |
c23b5a69 | 2788 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da | 2789 | |
2ec610cb LB |
2790 | rc = mwl8k_fw_lock(hw); |
2791 | if (!rc) { | |
55489b6e | 2792 | rc = mwl8k_cmd_radio_enable(hw); |
a66098da | 2793 | |
5e4cf166 LB |
2794 | if (!priv->ap_fw) { |
2795 | if (!rc) | |
55489b6e | 2796 | rc = mwl8k_cmd_enable_sniffer(hw, 0); |
a66098da | 2797 | |
5e4cf166 LB |
2798 | if (!rc) |
2799 | rc = mwl8k_cmd_set_pre_scan(hw); | |
2800 | ||
2801 | if (!rc) | |
2802 | rc = mwl8k_cmd_set_post_scan(hw, | |
2803 | "\x00\x00\x00\x00\x00\x00"); | |
2804 | } | |
2ec610cb LB |
2805 | |
2806 | if (!rc) | |
55489b6e | 2807 | rc = mwl8k_cmd_set_rateadapt_mode(hw, 0); |
a66098da | 2808 | |
2ec610cb | 2809 | if (!rc) |
55489b6e | 2810 | rc = mwl8k_cmd_set_wmm_mode(hw, 0); |
a66098da | 2811 | |
2ec610cb LB |
2812 | mwl8k_fw_unlock(hw); |
2813 | } | |
2814 | ||
2815 | if (rc) { | |
2816 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); | |
2817 | free_irq(priv->pdev->irq, hw); | |
2818 | tasklet_disable(&priv->tx_reclaim_task); | |
2819 | } | |
a66098da LB |
2820 | |
2821 | return rc; | |
2822 | } | |
2823 | ||
a66098da LB |
2824 | static void mwl8k_stop(struct ieee80211_hw *hw) |
2825 | { | |
a66098da LB |
2826 | struct mwl8k_priv *priv = hw->priv; |
2827 | int i; | |
2828 | ||
55489b6e | 2829 | mwl8k_cmd_radio_disable(hw); |
a66098da LB |
2830 | |
2831 | ieee80211_stop_queues(hw); | |
2832 | ||
a66098da | 2833 | /* Disable interrupts */ |
a66098da | 2834 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
2835 | free_irq(priv->pdev->irq, hw); |
2836 | ||
2837 | /* Stop finalize join worker */ | |
2838 | cancel_work_sync(&priv->finalize_join_worker); | |
2839 | if (priv->beacon_skb != NULL) | |
2840 | dev_kfree_skb(priv->beacon_skb); | |
2841 | ||
2842 | /* Stop tx reclaim tasklet */ | |
2843 | tasklet_disable(&priv->tx_reclaim_task); | |
2844 | ||
a66098da LB |
2845 | /* Return all skbs to mac80211 */ |
2846 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
2847 | mwl8k_txq_reclaim(hw, i, 1); | |
2848 | } | |
2849 | ||
2850 | static int mwl8k_add_interface(struct ieee80211_hw *hw, | |
2851 | struct ieee80211_if_init_conf *conf) | |
2852 | { | |
2853 | struct mwl8k_priv *priv = hw->priv; | |
2854 | struct mwl8k_vif *mwl8k_vif; | |
2855 | ||
2856 | /* | |
2857 | * We only support one active interface at a time. | |
2858 | */ | |
2859 | if (priv->vif != NULL) | |
2860 | return -EBUSY; | |
2861 | ||
2862 | /* | |
2863 | * We only support managed interfaces for now. | |
2864 | */ | |
240e86ef | 2865 | if (conf->type != NL80211_IFTYPE_STATION) |
a66098da LB |
2866 | return -EINVAL; |
2867 | ||
a43c49a8 LB |
2868 | /* |
2869 | * Reject interface creation if sniffer mode is active, as | |
2870 | * STA operation is mutually exclusive with hardware sniffer | |
2871 | * mode. | |
2872 | */ | |
2873 | if (priv->sniffer_enabled) { | |
2874 | printk(KERN_INFO "%s: unable to create STA " | |
2875 | "interface due to sniffer mode being enabled\n", | |
2876 | wiphy_name(hw->wiphy)); | |
2877 | return -EINVAL; | |
2878 | } | |
2879 | ||
a66098da LB |
2880 | /* Clean out driver private area */ |
2881 | mwl8k_vif = MWL8K_VIF(conf->vif); | |
2882 | memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); | |
2883 | ||
32060e1b | 2884 | /* Set and save the mac address */ |
55489b6e | 2885 | mwl8k_cmd_set_mac_addr(hw, conf->mac_addr); |
d89173f2 | 2886 | memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN); |
a66098da LB |
2887 | |
2888 | /* Back pointer to parent config block */ | |
2889 | mwl8k_vif->priv = priv; | |
2890 | ||
a66098da LB |
2891 | /* Set Initial sequence number to zero */ |
2892 | mwl8k_vif->seqno = 0; | |
2893 | ||
2894 | priv->vif = conf->vif; | |
2895 | priv->current_channel = NULL; | |
2896 | ||
2897 | return 0; | |
2898 | } | |
2899 | ||
2900 | static void mwl8k_remove_interface(struct ieee80211_hw *hw, | |
2901 | struct ieee80211_if_init_conf *conf) | |
2902 | { | |
2903 | struct mwl8k_priv *priv = hw->priv; | |
2904 | ||
2905 | if (priv->vif == NULL) | |
2906 | return; | |
2907 | ||
55489b6e | 2908 | mwl8k_cmd_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); |
32060e1b | 2909 | |
a66098da LB |
2910 | priv->vif = NULL; |
2911 | } | |
2912 | ||
ee03a932 | 2913 | static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) |
a66098da | 2914 | { |
a66098da LB |
2915 | struct ieee80211_conf *conf = &hw->conf; |
2916 | struct mwl8k_priv *priv = hw->priv; | |
ee03a932 | 2917 | int rc; |
a66098da | 2918 | |
7595d67a | 2919 | if (conf->flags & IEEE80211_CONF_IDLE) { |
55489b6e | 2920 | mwl8k_cmd_radio_disable(hw); |
7595d67a | 2921 | priv->current_channel = NULL; |
ee03a932 | 2922 | return 0; |
7595d67a LB |
2923 | } |
2924 | ||
ee03a932 LB |
2925 | rc = mwl8k_fw_lock(hw); |
2926 | if (rc) | |
2927 | return rc; | |
a66098da | 2928 | |
55489b6e | 2929 | rc = mwl8k_cmd_radio_enable(hw); |
ee03a932 LB |
2930 | if (rc) |
2931 | goto out; | |
a66098da | 2932 | |
ee03a932 LB |
2933 | rc = mwl8k_cmd_set_rf_channel(hw, conf->channel); |
2934 | if (rc) | |
2935 | goto out; | |
2936 | ||
2937 | priv->current_channel = conf->channel; | |
a66098da LB |
2938 | |
2939 | if (conf->power_level > 18) | |
2940 | conf->power_level = 18; | |
55489b6e | 2941 | rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level); |
ee03a932 LB |
2942 | if (rc) |
2943 | goto out; | |
a66098da | 2944 | |
08b06347 LB |
2945 | if (priv->ap_fw) { |
2946 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x7); | |
2947 | if (!rc) | |
2948 | rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7); | |
2949 | } else { | |
2950 | rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7); | |
2951 | } | |
a66098da | 2952 | |
ee03a932 LB |
2953 | out: |
2954 | mwl8k_fw_unlock(hw); | |
a66098da | 2955 | |
ee03a932 | 2956 | return rc; |
a66098da LB |
2957 | } |
2958 | ||
3a980d0a LB |
2959 | static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, |
2960 | struct ieee80211_vif *vif, | |
2961 | struct ieee80211_bss_conf *info, | |
2962 | u32 changed) | |
a66098da | 2963 | { |
a66098da LB |
2964 | struct mwl8k_priv *priv = hw->priv; |
2965 | struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); | |
3a980d0a LB |
2966 | int rc; |
2967 | ||
3a980d0a LB |
2968 | if ((changed & BSS_CHANGED_ASSOC) == 0) |
2969 | return; | |
a66098da | 2970 | |
a66098da LB |
2971 | priv->capture_beacon = false; |
2972 | ||
3a980d0a | 2973 | rc = mwl8k_fw_lock(hw); |
942457d6 | 2974 | if (rc) |
3a980d0a LB |
2975 | return; |
2976 | ||
a66098da LB |
2977 | if (info->assoc) { |
2978 | memcpy(&mwl8k_vif->bss_info, info, | |
2979 | sizeof(struct ieee80211_bss_conf)); | |
2980 | ||
d1844d77 LB |
2981 | memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); |
2982 | ||
a66098da | 2983 | /* Install rates */ |
55489b6e | 2984 | rc = mwl8k_cmd_set_rate(hw, vif); |
3a980d0a LB |
2985 | if (rc) |
2986 | goto out; | |
a66098da LB |
2987 | |
2988 | /* Turn on rate adaptation */ | |
3a980d0a LB |
2989 | rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, |
2990 | MWL8K_UCAST_RATE, NULL); | |
2991 | if (rc) | |
2992 | goto out; | |
a66098da LB |
2993 | |
2994 | /* Set radio preamble */ | |
3a980d0a LB |
2995 | rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble); |
2996 | if (rc) | |
2997 | goto out; | |
a66098da LB |
2998 | |
2999 | /* Set slot time */ | |
3a980d0a LB |
3000 | rc = mwl8k_cmd_set_slot(hw, info->use_short_slot); |
3001 | if (rc) | |
3002 | goto out; | |
a66098da LB |
3003 | |
3004 | /* Update peer rate info */ | |
55489b6e | 3005 | rc = mwl8k_cmd_update_stadb(hw, vif, |
3a980d0a LB |
3006 | MWL8K_STA_DB_MODIFY_ENTRY); |
3007 | if (rc) | |
3008 | goto out; | |
a66098da LB |
3009 | |
3010 | /* Set AID */ | |
3a980d0a LB |
3011 | rc = mwl8k_cmd_set_aid(hw, vif); |
3012 | if (rc) | |
3013 | goto out; | |
a66098da LB |
3014 | |
3015 | /* | |
3016 | * Finalize the join. Tell rx handler to process | |
3017 | * next beacon from our BSSID. | |
3018 | */ | |
d89173f2 | 3019 | memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN); |
a66098da LB |
3020 | priv->capture_beacon = true; |
3021 | } else { | |
55489b6e | 3022 | rc = mwl8k_cmd_update_stadb(hw, vif, MWL8K_STA_DB_DEL_ENTRY); |
a66098da LB |
3023 | memset(&mwl8k_vif->bss_info, 0, |
3024 | sizeof(struct ieee80211_bss_conf)); | |
d89173f2 | 3025 | memset(mwl8k_vif->bssid, 0, ETH_ALEN); |
a66098da LB |
3026 | } |
3027 | ||
3a980d0a LB |
3028 | out: |
3029 | mwl8k_fw_unlock(hw); | |
a66098da LB |
3030 | } |
3031 | ||
e81cd2d6 LB |
3032 | static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw, |
3033 | int mc_count, struct dev_addr_list *mclist) | |
3034 | { | |
3035 | struct mwl8k_cmd_pkt *cmd; | |
3036 | ||
447ced07 LB |
3037 | /* |
3038 | * Synthesize and return a command packet that programs the | |
3039 | * hardware multicast address filter. At this point we don't | |
3040 | * know whether FIF_ALLMULTI is being requested, but if it is, | |
3041 | * we'll end up throwing this packet away and creating a new | |
3042 | * one in mwl8k_configure_filter(). | |
3043 | */ | |
3044 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist); | |
e81cd2d6 LB |
3045 | |
3046 | return (unsigned long)cmd; | |
3047 | } | |
3048 | ||
a43c49a8 LB |
3049 | static int |
3050 | mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, | |
3051 | unsigned int changed_flags, | |
3052 | unsigned int *total_flags) | |
3053 | { | |
3054 | struct mwl8k_priv *priv = hw->priv; | |
3055 | ||
3056 | /* | |
3057 | * Hardware sniffer mode is mutually exclusive with STA | |
3058 | * operation, so refuse to enable sniffer mode if a STA | |
3059 | * interface is active. | |
3060 | */ | |
3061 | if (priv->vif != NULL) { | |
3062 | if (net_ratelimit()) | |
3063 | printk(KERN_INFO "%s: not enabling sniffer " | |
3064 | "mode because STA interface is active\n", | |
3065 | wiphy_name(hw->wiphy)); | |
3066 | return 0; | |
3067 | } | |
3068 | ||
3069 | if (!priv->sniffer_enabled) { | |
55489b6e | 3070 | if (mwl8k_cmd_enable_sniffer(hw, 1)) |
a43c49a8 LB |
3071 | return 0; |
3072 | priv->sniffer_enabled = true; | |
3073 | } | |
3074 | ||
3075 | *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI | | |
3076 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL | | |
3077 | FIF_OTHER_BSS; | |
3078 | ||
3079 | return 1; | |
3080 | } | |
3081 | ||
e6935ea1 LB |
3082 | static void mwl8k_configure_filter(struct ieee80211_hw *hw, |
3083 | unsigned int changed_flags, | |
3084 | unsigned int *total_flags, | |
3085 | u64 multicast) | |
3086 | { | |
3087 | struct mwl8k_priv *priv = hw->priv; | |
a43c49a8 LB |
3088 | struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast; |
3089 | ||
c0adae2c LB |
3090 | /* |
3091 | * AP firmware doesn't allow fine-grained control over | |
3092 | * the receive filter. | |
3093 | */ | |
3094 | if (priv->ap_fw) { | |
3095 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; | |
3096 | kfree(cmd); | |
3097 | return; | |
3098 | } | |
3099 | ||
a43c49a8 LB |
3100 | /* |
3101 | * Enable hardware sniffer mode if FIF_CONTROL or | |
3102 | * FIF_OTHER_BSS is requested. | |
3103 | */ | |
3104 | if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) && | |
3105 | mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) { | |
3106 | kfree(cmd); | |
3107 | return; | |
3108 | } | |
a66098da | 3109 | |
e6935ea1 | 3110 | /* Clear unsupported feature flags */ |
447ced07 | 3111 | *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; |
a66098da | 3112 | |
e6935ea1 LB |
3113 | if (mwl8k_fw_lock(hw)) |
3114 | return; | |
a66098da | 3115 | |
a43c49a8 | 3116 | if (priv->sniffer_enabled) { |
55489b6e | 3117 | mwl8k_cmd_enable_sniffer(hw, 0); |
a43c49a8 LB |
3118 | priv->sniffer_enabled = false; |
3119 | } | |
3120 | ||
e6935ea1 | 3121 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
77165d88 LB |
3122 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { |
3123 | /* | |
3124 | * Disable the BSS filter. | |
3125 | */ | |
e6935ea1 | 3126 | mwl8k_cmd_set_pre_scan(hw); |
77165d88 | 3127 | } else { |
a94cc97e LB |
3128 | u8 *bssid; |
3129 | ||
77165d88 LB |
3130 | /* |
3131 | * Enable the BSS filter. | |
3132 | * | |
3133 | * If there is an active STA interface, use that | |
3134 | * interface's BSSID, otherwise use a dummy one | |
3135 | * (where the OUI part needs to be nonzero for | |
3136 | * the BSSID to be accepted by POST_SCAN). | |
3137 | */ | |
3138 | bssid = "\x01\x00\x00\x00\x00\x00"; | |
a94cc97e LB |
3139 | if (priv->vif != NULL) |
3140 | bssid = MWL8K_VIF(priv->vif)->bssid; | |
3141 | ||
e6935ea1 | 3142 | mwl8k_cmd_set_post_scan(hw, bssid); |
a66098da LB |
3143 | } |
3144 | } | |
3145 | ||
447ced07 LB |
3146 | /* |
3147 | * If FIF_ALLMULTI is being requested, throw away the command | |
3148 | * packet that ->prepare_multicast() built and replace it with | |
3149 | * a command packet that enables reception of all multicast | |
3150 | * packets. | |
3151 | */ | |
3152 | if (*total_flags & FIF_ALLMULTI) { | |
3153 | kfree(cmd); | |
3154 | cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL); | |
3155 | } | |
3156 | ||
3157 | if (cmd != NULL) { | |
3158 | mwl8k_post_cmd(hw, cmd); | |
3159 | kfree(cmd); | |
e6935ea1 | 3160 | } |
a66098da | 3161 | |
e6935ea1 | 3162 | mwl8k_fw_unlock(hw); |
a66098da LB |
3163 | } |
3164 | ||
a66098da LB |
3165 | static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
3166 | { | |
55489b6e | 3167 | return mwl8k_cmd_set_rts_threshold(hw, MWL8K_CMD_SET, value); |
a66098da LB |
3168 | } |
3169 | ||
a66098da LB |
3170 | static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
3171 | const struct ieee80211_tx_queue_params *params) | |
3172 | { | |
3e4f542c | 3173 | struct mwl8k_priv *priv = hw->priv; |
a66098da | 3174 | int rc; |
a66098da | 3175 | |
3e4f542c LB |
3176 | rc = mwl8k_fw_lock(hw); |
3177 | if (!rc) { | |
3178 | if (!priv->wmm_enabled) | |
55489b6e | 3179 | rc = mwl8k_cmd_set_wmm_mode(hw, 1); |
a66098da | 3180 | |
3e4f542c | 3181 | if (!rc) |
55489b6e LB |
3182 | rc = mwl8k_cmd_set_edca_params(hw, queue, |
3183 | params->cw_min, | |
3184 | params->cw_max, | |
3185 | params->aifs, | |
3186 | params->txop); | |
3e4f542c LB |
3187 | |
3188 | mwl8k_fw_unlock(hw); | |
a66098da | 3189 | } |
3e4f542c | 3190 | |
a66098da LB |
3191 | return rc; |
3192 | } | |
3193 | ||
3194 | static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, | |
3195 | struct ieee80211_tx_queue_stats *stats) | |
3196 | { | |
3197 | struct mwl8k_priv *priv = hw->priv; | |
3198 | struct mwl8k_tx_queue *txq; | |
3199 | int index; | |
3200 | ||
3201 | spin_lock_bh(&priv->tx_lock); | |
3202 | for (index = 0; index < MWL8K_TX_QUEUES; index++) { | |
3203 | txq = priv->txq + index; | |
45eb400d | 3204 | memcpy(&stats[index], &txq->stats, |
a66098da LB |
3205 | sizeof(struct ieee80211_tx_queue_stats)); |
3206 | } | |
3207 | spin_unlock_bh(&priv->tx_lock); | |
a66098da | 3208 | |
954ef509 | 3209 | return 0; |
a66098da LB |
3210 | } |
3211 | ||
3212 | static int mwl8k_get_stats(struct ieee80211_hw *hw, | |
3213 | struct ieee80211_low_level_stats *stats) | |
3214 | { | |
55489b6e | 3215 | return mwl8k_cmd_get_stat(hw, stats); |
a66098da LB |
3216 | } |
3217 | ||
3218 | static const struct ieee80211_ops mwl8k_ops = { | |
3219 | .tx = mwl8k_tx, | |
3220 | .start = mwl8k_start, | |
3221 | .stop = mwl8k_stop, | |
3222 | .add_interface = mwl8k_add_interface, | |
3223 | .remove_interface = mwl8k_remove_interface, | |
3224 | .config = mwl8k_config, | |
a66098da | 3225 | .bss_info_changed = mwl8k_bss_info_changed, |
3ac64bee | 3226 | .prepare_multicast = mwl8k_prepare_multicast, |
a66098da LB |
3227 | .configure_filter = mwl8k_configure_filter, |
3228 | .set_rts_threshold = mwl8k_set_rts_threshold, | |
3229 | .conf_tx = mwl8k_conf_tx, | |
3230 | .get_tx_stats = mwl8k_get_tx_stats, | |
3231 | .get_stats = mwl8k_get_stats, | |
3232 | }; | |
3233 | ||
3234 | static void mwl8k_tx_reclaim_handler(unsigned long data) | |
3235 | { | |
3236 | int i; | |
3237 | struct ieee80211_hw *hw = (struct ieee80211_hw *) data; | |
3238 | struct mwl8k_priv *priv = hw->priv; | |
3239 | ||
3240 | spin_lock_bh(&priv->tx_lock); | |
3241 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3242 | mwl8k_txq_reclaim(hw, i, 0); | |
3243 | ||
88de754a | 3244 | if (priv->tx_wait != NULL && !priv->pending_tx_pkts) { |
ce9e2e1b LB |
3245 | complete(priv->tx_wait); |
3246 | priv->tx_wait = NULL; | |
a66098da LB |
3247 | } |
3248 | spin_unlock_bh(&priv->tx_lock); | |
3249 | } | |
3250 | ||
3251 | static void mwl8k_finalize_join_worker(struct work_struct *work) | |
3252 | { | |
3253 | struct mwl8k_priv *priv = | |
3254 | container_of(work, struct mwl8k_priv, finalize_join_worker); | |
3255 | struct sk_buff *skb = priv->beacon_skb; | |
ce9e2e1b | 3256 | u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; |
a66098da | 3257 | |
55489b6e | 3258 | mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim); |
a66098da LB |
3259 | dev_kfree_skb(skb); |
3260 | ||
3261 | priv->beacon_skb = NULL; | |
3262 | } | |
3263 | ||
bcb628d5 JL |
3264 | enum { |
3265 | MWL8687 = 0, | |
3266 | MWL8366, | |
6f6d1e9a LB |
3267 | }; |
3268 | ||
bcb628d5 JL |
3269 | static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = { |
3270 | { | |
3271 | .part_name = "88w8687", | |
3272 | .helper_image = "mwl8k/helper_8687.fw", | |
3273 | .fw_image = "mwl8k/fmimage_8687.fw", | |
3274 | .rxd_ops = &rxd_8687_ops, | |
3275 | .modes = BIT(NL80211_IFTYPE_STATION), | |
3276 | }, | |
3277 | { | |
3278 | .part_name = "88w8366", | |
3279 | .helper_image = "mwl8k/helper_8366.fw", | |
3280 | .fw_image = "mwl8k/fmimage_8366.fw", | |
3281 | .rxd_ops = &rxd_8366_ops, | |
3282 | .modes = 0, | |
3283 | }, | |
45a390dd LB |
3284 | }; |
3285 | ||
3286 | static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { | |
bcb628d5 JL |
3287 | { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, }, |
3288 | { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, }, | |
3289 | { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, }, | |
3290 | { }, | |
45a390dd LB |
3291 | }; |
3292 | MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table); | |
3293 | ||
a66098da LB |
3294 | static int __devinit mwl8k_probe(struct pci_dev *pdev, |
3295 | const struct pci_device_id *id) | |
3296 | { | |
2aa7b01f | 3297 | static int printed_version = 0; |
a66098da LB |
3298 | struct ieee80211_hw *hw; |
3299 | struct mwl8k_priv *priv; | |
a66098da LB |
3300 | int rc; |
3301 | int i; | |
2aa7b01f LB |
3302 | |
3303 | if (!printed_version) { | |
3304 | printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); | |
3305 | printed_version = 1; | |
3306 | } | |
a66098da LB |
3307 | |
3308 | rc = pci_enable_device(pdev); | |
3309 | if (rc) { | |
3310 | printk(KERN_ERR "%s: Cannot enable new PCI device\n", | |
3311 | MWL8K_NAME); | |
3312 | return rc; | |
3313 | } | |
3314 | ||
3315 | rc = pci_request_regions(pdev, MWL8K_NAME); | |
3316 | if (rc) { | |
3317 | printk(KERN_ERR "%s: Cannot obtain PCI resources\n", | |
3318 | MWL8K_NAME); | |
3db95e50 | 3319 | goto err_disable_device; |
a66098da LB |
3320 | } |
3321 | ||
3322 | pci_set_master(pdev); | |
3323 | ||
3324 | hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); | |
3325 | if (hw == NULL) { | |
3326 | printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); | |
3327 | rc = -ENOMEM; | |
3328 | goto err_free_reg; | |
3329 | } | |
3330 | ||
3331 | priv = hw->priv; | |
3332 | priv->hw = hw; | |
3333 | priv->pdev = pdev; | |
bcb628d5 | 3334 | priv->device_info = &mwl8k_info_tbl[id->driver_data]; |
54bc3a0d | 3335 | priv->rxd_ops = priv->device_info->rxd_ops; |
a43c49a8 | 3336 | priv->sniffer_enabled = false; |
0439b1f5 | 3337 | priv->wmm_enabled = false; |
a66098da | 3338 | priv->pending_tx_pkts = 0; |
a66098da | 3339 | |
a66098da LB |
3340 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3341 | pci_set_drvdata(pdev, hw); | |
3342 | ||
5b9482dd LB |
3343 | priv->sram = pci_iomap(pdev, 0, 0x10000); |
3344 | if (priv->sram == NULL) { | |
3345 | printk(KERN_ERR "%s: Cannot map device SRAM\n", | |
c2c357ce | 3346 | wiphy_name(hw->wiphy)); |
a66098da LB |
3347 | goto err_iounmap; |
3348 | } | |
3349 | ||
5b9482dd LB |
3350 | /* |
3351 | * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. | |
3352 | * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. | |
3353 | */ | |
3354 | priv->regs = pci_iomap(pdev, 1, 0x10000); | |
3355 | if (priv->regs == NULL) { | |
3356 | priv->regs = pci_iomap(pdev, 2, 0x10000); | |
3357 | if (priv->regs == NULL) { | |
3358 | printk(KERN_ERR "%s: Cannot map device registers\n", | |
3359 | wiphy_name(hw->wiphy)); | |
3360 | goto err_iounmap; | |
3361 | } | |
3362 | } | |
3363 | ||
a66098da LB |
3364 | memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); |
3365 | priv->band.band = IEEE80211_BAND_2GHZ; | |
3366 | priv->band.channels = priv->channels; | |
3367 | priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); | |
3368 | priv->band.bitrates = priv->rates; | |
3369 | priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); | |
3370 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; | |
3371 | ||
3372 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); | |
3373 | memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); | |
3374 | ||
3375 | /* | |
3376 | * Extra headroom is the size of the required DMA header | |
3377 | * minus the size of the smallest 802.11 frame (CTS frame). | |
3378 | */ | |
3379 | hw->extra_tx_headroom = | |
3380 | sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); | |
3381 | ||
3382 | hw->channel_change_time = 10; | |
3383 | ||
3384 | hw->queues = MWL8K_TX_QUEUES; | |
3385 | ||
547810e3 | 3386 | hw->wiphy->interface_modes = priv->device_info->modes; |
a66098da LB |
3387 | |
3388 | /* Set rssi and noise values to dBm */ | |
ce9e2e1b | 3389 | hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; |
a66098da LB |
3390 | hw->vif_data_size = sizeof(struct mwl8k_vif); |
3391 | priv->vif = NULL; | |
3392 | ||
3393 | /* Set default radio state and preamble */ | |
c46563b7 | 3394 | priv->radio_on = 0; |
68ce3884 | 3395 | priv->radio_short_preamble = 0; |
a66098da LB |
3396 | |
3397 | /* Finalize join worker */ | |
3398 | INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); | |
3399 | ||
3400 | /* TX reclaim tasklet */ | |
3401 | tasklet_init(&priv->tx_reclaim_task, | |
3402 | mwl8k_tx_reclaim_handler, (unsigned long)hw); | |
3403 | tasklet_disable(&priv->tx_reclaim_task); | |
3404 | ||
a66098da LB |
3405 | /* Power management cookie */ |
3406 | priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); | |
3407 | if (priv->cookie == NULL) | |
3408 | goto err_iounmap; | |
3409 | ||
3410 | rc = mwl8k_rxq_init(hw, 0); | |
3411 | if (rc) | |
3412 | goto err_iounmap; | |
3413 | rxq_refill(hw, 0, INT_MAX); | |
3414 | ||
618952a7 LB |
3415 | mutex_init(&priv->fw_mutex); |
3416 | priv->fw_mutex_owner = NULL; | |
3417 | priv->fw_mutex_depth = 0; | |
618952a7 LB |
3418 | priv->hostcmd_wait = NULL; |
3419 | ||
a66098da LB |
3420 | spin_lock_init(&priv->tx_lock); |
3421 | ||
88de754a LB |
3422 | priv->tx_wait = NULL; |
3423 | ||
a66098da LB |
3424 | for (i = 0; i < MWL8K_TX_QUEUES; i++) { |
3425 | rc = mwl8k_txq_init(hw, i); | |
3426 | if (rc) | |
3427 | goto err_free_queues; | |
3428 | } | |
3429 | ||
3430 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); | |
c23b5a69 | 3431 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3432 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); |
3433 | iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); | |
3434 | ||
a0607fd3 | 3435 | rc = request_irq(priv->pdev->irq, mwl8k_interrupt, |
a66098da LB |
3436 | IRQF_SHARED, MWL8K_NAME, hw); |
3437 | if (rc) { | |
3438 | printk(KERN_ERR "%s: failed to register IRQ handler\n", | |
c2c357ce | 3439 | wiphy_name(hw->wiphy)); |
a66098da LB |
3440 | goto err_free_queues; |
3441 | } | |
3442 | ||
3443 | /* Reset firmware and hardware */ | |
3444 | mwl8k_hw_reset(priv); | |
3445 | ||
3446 | /* Ask userland hotplug daemon for the device firmware */ | |
45a390dd | 3447 | rc = mwl8k_request_firmware(priv); |
a66098da | 3448 | if (rc) { |
c2c357ce LB |
3449 | printk(KERN_ERR "%s: Firmware files not found\n", |
3450 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3451 | goto err_free_irq; |
3452 | } | |
3453 | ||
3454 | /* Load firmware into hardware */ | |
c2c357ce | 3455 | rc = mwl8k_load_firmware(hw); |
a66098da | 3456 | if (rc) { |
c2c357ce LB |
3457 | printk(KERN_ERR "%s: Cannot start firmware\n", |
3458 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3459 | goto err_stop_firmware; |
3460 | } | |
3461 | ||
3462 | /* Reclaim memory once firmware is successfully loaded */ | |
3463 | mwl8k_release_firmware(priv); | |
3464 | ||
3465 | /* | |
3466 | * Temporarily enable interrupts. Initial firmware host | |
3467 | * commands use interrupts and avoids polling. Disable | |
3468 | * interrupts when done. | |
3469 | */ | |
c23b5a69 | 3470 | iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3471 | |
3472 | /* Get config data, mac addrs etc */ | |
42fba21d LB |
3473 | if (priv->ap_fw) { |
3474 | rc = mwl8k_cmd_get_hw_spec_ap(hw); | |
3475 | if (!rc) | |
3476 | rc = mwl8k_cmd_set_hw_spec(hw); | |
3477 | } else { | |
3478 | rc = mwl8k_cmd_get_hw_spec_sta(hw); | |
3479 | } | |
a66098da | 3480 | if (rc) { |
c2c357ce LB |
3481 | printk(KERN_ERR "%s: Cannot initialise firmware\n", |
3482 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3483 | goto err_stop_firmware; |
3484 | } | |
3485 | ||
3486 | /* Turn radio off */ | |
55489b6e | 3487 | rc = mwl8k_cmd_radio_disable(hw); |
a66098da | 3488 | if (rc) { |
c2c357ce | 3489 | printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy)); |
a66098da LB |
3490 | goto err_stop_firmware; |
3491 | } | |
3492 | ||
32060e1b | 3493 | /* Clear MAC address */ |
55489b6e | 3494 | rc = mwl8k_cmd_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); |
32060e1b LB |
3495 | if (rc) { |
3496 | printk(KERN_ERR "%s: Cannot clear MAC address\n", | |
3497 | wiphy_name(hw->wiphy)); | |
3498 | goto err_stop_firmware; | |
3499 | } | |
3500 | ||
a66098da | 3501 | /* Disable interrupts */ |
a66098da | 3502 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3503 | free_irq(priv->pdev->irq, hw); |
3504 | ||
3505 | rc = ieee80211_register_hw(hw); | |
3506 | if (rc) { | |
c2c357ce LB |
3507 | printk(KERN_ERR "%s: Cannot register device\n", |
3508 | wiphy_name(hw->wiphy)); | |
a66098da LB |
3509 | goto err_stop_firmware; |
3510 | } | |
3511 | ||
eae74e65 | 3512 | printk(KERN_INFO "%s: %s v%d, %pM, %s firmware %u.%u.%u.%u\n", |
a74b295e | 3513 | wiphy_name(hw->wiphy), priv->device_info->part_name, |
45a390dd | 3514 | priv->hw_rev, hw->wiphy->perm_addr, |
eae74e65 | 3515 | priv->ap_fw ? "AP" : "STA", |
2aa7b01f LB |
3516 | (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff, |
3517 | (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff); | |
a66098da LB |
3518 | |
3519 | return 0; | |
3520 | ||
3521 | err_stop_firmware: | |
3522 | mwl8k_hw_reset(priv); | |
3523 | mwl8k_release_firmware(priv); | |
3524 | ||
3525 | err_free_irq: | |
a66098da | 3526 | iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); |
a66098da LB |
3527 | free_irq(priv->pdev->irq, hw); |
3528 | ||
3529 | err_free_queues: | |
3530 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3531 | mwl8k_txq_deinit(hw, i); | |
3532 | mwl8k_rxq_deinit(hw, 0); | |
3533 | ||
3534 | err_iounmap: | |
3535 | if (priv->cookie != NULL) | |
3536 | pci_free_consistent(priv->pdev, 4, | |
3537 | priv->cookie, priv->cookie_dma); | |
3538 | ||
3539 | if (priv->regs != NULL) | |
3540 | pci_iounmap(pdev, priv->regs); | |
3541 | ||
5b9482dd LB |
3542 | if (priv->sram != NULL) |
3543 | pci_iounmap(pdev, priv->sram); | |
3544 | ||
a66098da LB |
3545 | pci_set_drvdata(pdev, NULL); |
3546 | ieee80211_free_hw(hw); | |
3547 | ||
3548 | err_free_reg: | |
3549 | pci_release_regions(pdev); | |
3db95e50 LB |
3550 | |
3551 | err_disable_device: | |
a66098da LB |
3552 | pci_disable_device(pdev); |
3553 | ||
3554 | return rc; | |
3555 | } | |
3556 | ||
230f7af0 | 3557 | static void __devexit mwl8k_shutdown(struct pci_dev *pdev) |
a66098da LB |
3558 | { |
3559 | printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); | |
3560 | } | |
3561 | ||
230f7af0 | 3562 | static void __devexit mwl8k_remove(struct pci_dev *pdev) |
a66098da LB |
3563 | { |
3564 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
3565 | struct mwl8k_priv *priv; | |
3566 | int i; | |
3567 | ||
3568 | if (hw == NULL) | |
3569 | return; | |
3570 | priv = hw->priv; | |
3571 | ||
3572 | ieee80211_stop_queues(hw); | |
3573 | ||
60aa569f LB |
3574 | ieee80211_unregister_hw(hw); |
3575 | ||
a66098da LB |
3576 | /* Remove tx reclaim tasklet */ |
3577 | tasklet_kill(&priv->tx_reclaim_task); | |
3578 | ||
a66098da LB |
3579 | /* Stop hardware */ |
3580 | mwl8k_hw_reset(priv); | |
3581 | ||
3582 | /* Return all skbs to mac80211 */ | |
3583 | for (i = 0; i < MWL8K_TX_QUEUES; i++) | |
3584 | mwl8k_txq_reclaim(hw, i, 1); | |
3585 | ||
a66098da LB |
3586 | for (i = 0; i < MWL8K_TX_QUEUES; i++) |
3587 | mwl8k_txq_deinit(hw, i); | |
3588 | ||
3589 | mwl8k_rxq_deinit(hw, 0); | |
3590 | ||
c2c357ce | 3591 | pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); |
a66098da LB |
3592 | |
3593 | pci_iounmap(pdev, priv->regs); | |
5b9482dd | 3594 | pci_iounmap(pdev, priv->sram); |
a66098da LB |
3595 | pci_set_drvdata(pdev, NULL); |
3596 | ieee80211_free_hw(hw); | |
3597 | pci_release_regions(pdev); | |
3598 | pci_disable_device(pdev); | |
3599 | } | |
3600 | ||
3601 | static struct pci_driver mwl8k_driver = { | |
3602 | .name = MWL8K_NAME, | |
45a390dd | 3603 | .id_table = mwl8k_pci_id_table, |
a66098da LB |
3604 | .probe = mwl8k_probe, |
3605 | .remove = __devexit_p(mwl8k_remove), | |
3606 | .shutdown = __devexit_p(mwl8k_shutdown), | |
3607 | }; | |
3608 | ||
3609 | static int __init mwl8k_init(void) | |
3610 | { | |
3611 | return pci_register_driver(&mwl8k_driver); | |
3612 | } | |
3613 | ||
3614 | static void __exit mwl8k_exit(void) | |
3615 | { | |
3616 | pci_unregister_driver(&mwl8k_driver); | |
3617 | } | |
3618 | ||
3619 | module_init(mwl8k_init); | |
3620 | module_exit(mwl8k_exit); | |
c2c357ce LB |
3621 | |
3622 | MODULE_DESCRIPTION(MWL8K_DESC); | |
3623 | MODULE_VERSION(MWL8K_VERSION); | |
3624 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>"); | |
3625 | MODULE_LICENSE("GPL"); |