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2ca20f79 G |
1 | /****************************************************************************** |
2 | * | |
a8d76066 | 3 | * Copyright(c) 2009-2012 Realtek Corporation. All rights reserved. |
2ca20f79 G |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
21 | * Contact Information: | |
22 | * wlanfae <wlanfae@realtek.com> | |
23 | * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, | |
24 | * Hsinchu 300, Taiwan. | |
25 | * | |
26 | *****************************************************************************/ | |
292b1192 | 27 | |
2ca20f79 | 28 | #include "wifi.h" |
d273bb20 | 29 | #include "core.h" |
2ca20f79 G |
30 | #include "usb.h" |
31 | #include "base.h" | |
32 | #include "ps.h" | |
040a7278 | 33 | #include "rtl8192c/fw_common.h" |
d273bb20 | 34 | #include <linux/export.h> |
2ca20f79 G |
35 | |
36 | #define REALTEK_USB_VENQT_READ 0xC0 | |
37 | #define REALTEK_USB_VENQT_WRITE 0x40 | |
38 | #define REALTEK_USB_VENQT_CMD_REQ 0x05 | |
39 | #define REALTEK_USB_VENQT_CMD_IDX 0x00 | |
40 | ||
040a7278 | 41 | #define MAX_USBCTRL_VENDORREQ_TIMES 10 |
2ca20f79 G |
42 | |
43 | static void usbctrl_async_callback(struct urb *urb) | |
44 | { | |
bc6b8923 JK |
45 | if (urb) { |
46 | /* free dr */ | |
47 | kfree(urb->setup_packet); | |
48 | /* free databuf */ | |
49 | kfree(urb->transfer_buffer); | |
50 | } | |
2ca20f79 G |
51 | } |
52 | ||
53 | static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request, | |
54 | u16 value, u16 index, void *pdata, | |
55 | u16 len) | |
56 | { | |
57 | int rc; | |
58 | unsigned int pipe; | |
59 | u8 reqtype; | |
60 | struct usb_ctrlrequest *dr; | |
61 | struct urb *urb; | |
bc6b8923 JK |
62 | const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE; |
63 | u8 *databuf; | |
64 | ||
65 | if (WARN_ON_ONCE(len > databuf_maxlen)) | |
66 | len = databuf_maxlen; | |
2ca20f79 G |
67 | |
68 | pipe = usb_sndctrlpipe(udev, 0); /* write_out */ | |
69 | reqtype = REALTEK_USB_VENQT_WRITE; | |
70 | ||
bc6b8923 JK |
71 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); |
72 | if (!dr) | |
2ca20f79 G |
73 | return -ENOMEM; |
74 | ||
bc6b8923 JK |
75 | databuf = kmalloc(databuf_maxlen, GFP_ATOMIC); |
76 | if (!databuf) { | |
77 | kfree(dr); | |
78 | return -ENOMEM; | |
79 | } | |
80 | ||
2ca20f79 G |
81 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
82 | if (!urb) { | |
bc6b8923 JK |
83 | kfree(databuf); |
84 | kfree(dr); | |
2ca20f79 G |
85 | return -ENOMEM; |
86 | } | |
87 | ||
2ca20f79 G |
88 | dr->bRequestType = reqtype; |
89 | dr->bRequest = request; | |
90 | dr->wValue = cpu_to_le16(value); | |
91 | dr->wIndex = cpu_to_le16(index); | |
92 | dr->wLength = cpu_to_le16(len); | |
abfabc9b | 93 | /* data are already in little-endian order */ |
bc6b8923 | 94 | memcpy(databuf, pdata, len); |
2ca20f79 | 95 | usb_fill_control_urb(urb, udev, pipe, |
bc6b8923 JK |
96 | (unsigned char *)dr, databuf, len, |
97 | usbctrl_async_callback, NULL); | |
2ca20f79 | 98 | rc = usb_submit_urb(urb, GFP_ATOMIC); |
bc6b8923 JK |
99 | if (rc < 0) { |
100 | kfree(databuf); | |
101 | kfree(dr); | |
102 | } | |
2ca20f79 G |
103 | usb_free_urb(urb); |
104 | return rc; | |
105 | } | |
106 | ||
107 | static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request, | |
108 | u16 value, u16 index, void *pdata, | |
109 | u16 len) | |
110 | { | |
111 | unsigned int pipe; | |
112 | int status; | |
113 | u8 reqtype; | |
040a7278 | 114 | int vendorreq_times = 0; |
abfabc9b | 115 | static int count; |
2ca20f79 G |
116 | |
117 | pipe = usb_rcvctrlpipe(udev, 0); /* read_in */ | |
118 | reqtype = REALTEK_USB_VENQT_READ; | |
119 | ||
eb1852b1 | 120 | do { |
040a7278 | 121 | status = usb_control_msg(udev, pipe, request, reqtype, value, |
35760dc5 | 122 | index, pdata, len, 1000); |
040a7278 G |
123 | if (status < 0) { |
124 | /* firmware download is checksumed, don't retry */ | |
125 | if ((value >= FW_8192C_START_ADDRESS && | |
126 | value <= FW_8192C_END_ADDRESS)) | |
127 | break; | |
128 | } else { | |
129 | break; | |
130 | } | |
eb1852b1 JL |
131 | } while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES); |
132 | ||
abfabc9b | 133 | if (status < 0 && count++ < 4) |
292b1192 | 134 | pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n", |
8e2c406a | 135 | value, status, *(u32 *)pdata); |
2ca20f79 G |
136 | return status; |
137 | } | |
138 | ||
a7959c13 | 139 | static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len) |
2ca20f79 | 140 | { |
a7959c13 LF |
141 | struct device *dev = rtlpriv->io.dev; |
142 | struct usb_device *udev = to_usb_device(dev); | |
2ca20f79 G |
143 | u8 request; |
144 | u16 wvalue; | |
145 | u16 index; | |
3ce4d85b LF |
146 | __le32 *data; |
147 | unsigned long flags; | |
2ca20f79 | 148 | |
3ce4d85b LF |
149 | spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags); |
150 | if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) | |
151 | rtlpriv->usb_data_index = 0; | |
152 | data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; | |
153 | spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags); | |
2ca20f79 G |
154 | request = REALTEK_USB_VENQT_CMD_REQ; |
155 | index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ | |
156 | ||
157 | wvalue = (u16)addr; | |
158 | _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); | |
a7959c13 | 159 | return le32_to_cpu(*data); |
2ca20f79 G |
160 | } |
161 | ||
162 | static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr) | |
163 | { | |
a7959c13 | 164 | return (u8)_usb_read_sync(rtlpriv, addr, 1); |
2ca20f79 G |
165 | } |
166 | ||
167 | static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr) | |
168 | { | |
a7959c13 | 169 | return (u16)_usb_read_sync(rtlpriv, addr, 2); |
2ca20f79 G |
170 | } |
171 | ||
172 | static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr) | |
173 | { | |
a7959c13 | 174 | return _usb_read_sync(rtlpriv, addr, 4); |
2ca20f79 G |
175 | } |
176 | ||
177 | static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val, | |
178 | u16 len) | |
179 | { | |
180 | u8 request; | |
181 | u16 wvalue; | |
182 | u16 index; | |
abfabc9b | 183 | __le32 data; |
2ca20f79 G |
184 | |
185 | request = REALTEK_USB_VENQT_CMD_REQ; | |
186 | index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ | |
187 | wvalue = (u16)(addr&0x0000ffff); | |
abfabc9b | 188 | data = cpu_to_le32(val); |
2ca20f79 G |
189 | _usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data, |
190 | len); | |
191 | } | |
192 | ||
193 | static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val) | |
194 | { | |
195 | struct device *dev = rtlpriv->io.dev; | |
196 | ||
197 | _usb_write_async(to_usb_device(dev), addr, val, 1); | |
198 | } | |
199 | ||
200 | static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val) | |
201 | { | |
202 | struct device *dev = rtlpriv->io.dev; | |
203 | ||
204 | _usb_write_async(to_usb_device(dev), addr, val, 2); | |
205 | } | |
206 | ||
207 | static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val) | |
208 | { | |
209 | struct device *dev = rtlpriv->io.dev; | |
210 | ||
211 | _usb_write_async(to_usb_device(dev), addr, val, 4); | |
212 | } | |
213 | ||
ff6ff96b LF |
214 | static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data, |
215 | u16 len) | |
216 | { | |
217 | struct device *dev = rtlpriv->io.dev; | |
218 | struct usb_device *udev = to_usb_device(dev); | |
219 | u8 request = REALTEK_USB_VENQT_CMD_REQ; | |
220 | u8 reqtype = REALTEK_USB_VENQT_WRITE; | |
221 | u16 wvalue; | |
222 | u16 index = REALTEK_USB_VENQT_CMD_IDX; | |
223 | int pipe = usb_sndctrlpipe(udev, 0); /* write_out */ | |
224 | u8 *buffer; | |
ff6ff96b | 225 | |
4c3de592 | 226 | wvalue = (u16)(addr & 0x0000ffff); |
7c21bb69 | 227 | buffer = kmemdup(data, len, GFP_ATOMIC); |
ff6ff96b LF |
228 | if (!buffer) |
229 | return; | |
ff6ff96b LF |
230 | usb_control_msg(udev, pipe, request, reqtype, wvalue, |
231 | index, buffer, len, 50); | |
232 | ||
4c3de592 | 233 | kfree(buffer); |
ff6ff96b LF |
234 | } |
235 | ||
2ca20f79 G |
236 | static void _rtl_usb_io_handler_init(struct device *dev, |
237 | struct ieee80211_hw *hw) | |
238 | { | |
239 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
240 | ||
241 | rtlpriv->io.dev = dev; | |
242 | mutex_init(&rtlpriv->io.bb_mutex); | |
243 | rtlpriv->io.write8_async = _usb_write8_async; | |
244 | rtlpriv->io.write16_async = _usb_write16_async; | |
245 | rtlpriv->io.write32_async = _usb_write32_async; | |
2ca20f79 G |
246 | rtlpriv->io.read8_sync = _usb_read8_sync; |
247 | rtlpriv->io.read16_sync = _usb_read16_sync; | |
248 | rtlpriv->io.read32_sync = _usb_read32_sync; | |
ff6ff96b | 249 | rtlpriv->io.writeN_sync = _usb_writeN_sync; |
2ca20f79 G |
250 | } |
251 | ||
252 | static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw) | |
253 | { | |
2e3e66e3 | 254 | struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw); |
2ca20f79 G |
255 | |
256 | mutex_destroy(&rtlpriv->io.bb_mutex); | |
257 | } | |
258 | ||
259 | /** | |
260 | * | |
261 | * Default aggregation handler. Do nothing and just return the oldest skb. | |
262 | */ | |
263 | static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw, | |
264 | struct sk_buff_head *list) | |
265 | { | |
266 | return skb_dequeue(list); | |
267 | } | |
268 | ||
269 | #define IS_HIGH_SPEED_USB(udev) \ | |
270 | ((USB_SPEED_HIGH == (udev)->speed) ? true : false) | |
271 | ||
272 | static int _rtl_usb_init_tx(struct ieee80211_hw *hw) | |
273 | { | |
274 | u32 i; | |
275 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
276 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
277 | ||
278 | rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev) | |
279 | ? USB_HIGH_SPEED_BULK_SIZE | |
280 | : USB_FULL_SPEED_BULK_SIZE; | |
281 | ||
f30d7507 JP |
282 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n", |
283 | rtlusb->max_bulk_out_size); | |
2ca20f79 G |
284 | |
285 | for (i = 0; i < __RTL_TXQ_NUM; i++) { | |
286 | u32 ep_num = rtlusb->ep_map.ep_mapping[i]; | |
287 | if (!ep_num) { | |
288 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, | |
f30d7507 | 289 | "Invalid endpoint map setting!\n"); |
2ca20f79 G |
290 | return -EINVAL; |
291 | } | |
292 | } | |
293 | ||
294 | rtlusb->usb_tx_post_hdl = | |
295 | rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl; | |
296 | rtlusb->usb_tx_cleanup = | |
297 | rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup; | |
298 | rtlusb->usb_tx_aggregate_hdl = | |
299 | (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl) | |
300 | ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl | |
301 | : &_none_usb_tx_aggregate_hdl; | |
302 | ||
303 | init_usb_anchor(&rtlusb->tx_submitted); | |
304 | for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) { | |
305 | skb_queue_head_init(&rtlusb->tx_skb_queue[i]); | |
306 | init_usb_anchor(&rtlusb->tx_pending[i]); | |
307 | } | |
308 | return 0; | |
309 | } | |
310 | ||
29bb7013 JK |
311 | static void _rtl_rx_work(unsigned long param); |
312 | ||
2ca20f79 G |
313 | static int _rtl_usb_init_rx(struct ieee80211_hw *hw) |
314 | { | |
315 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
316 | struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw); | |
317 | struct rtl_usb *rtlusb = rtl_usbdev(usb_priv); | |
318 | ||
319 | rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size; | |
320 | rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num; | |
321 | rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num; | |
322 | rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl; | |
323 | rtlusb->usb_rx_segregate_hdl = | |
324 | rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl; | |
325 | ||
292b1192 | 326 | pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n", |
2ca20f79 G |
327 | rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep); |
328 | init_usb_anchor(&rtlusb->rx_submitted); | |
872de8ff | 329 | init_usb_anchor(&rtlusb->rx_cleanup_urbs); |
29bb7013 JK |
330 | |
331 | skb_queue_head_init(&rtlusb->rx_queue); | |
332 | rtlusb->rx_work_tasklet.func = _rtl_rx_work; | |
333 | rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb; | |
334 | ||
2ca20f79 G |
335 | return 0; |
336 | } | |
337 | ||
338 | static int _rtl_usb_init(struct ieee80211_hw *hw) | |
339 | { | |
340 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
341 | struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw); | |
342 | struct rtl_usb *rtlusb = rtl_usbdev(usb_priv); | |
343 | int err; | |
344 | u8 epidx; | |
345 | struct usb_interface *usb_intf = rtlusb->intf; | |
346 | u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints; | |
347 | ||
348 | rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0; | |
349 | for (epidx = 0; epidx < epnums; epidx++) { | |
350 | struct usb_endpoint_descriptor *pep_desc; | |
351 | pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc; | |
352 | ||
353 | if (usb_endpoint_dir_in(pep_desc)) | |
354 | rtlusb->in_ep_nums++; | |
355 | else if (usb_endpoint_dir_out(pep_desc)) | |
356 | rtlusb->out_ep_nums++; | |
357 | ||
358 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, | |
f30d7507 | 359 | "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n", |
2ca20f79 | 360 | pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize, |
f30d7507 | 361 | pep_desc->bInterval); |
2ca20f79 | 362 | } |
48de1a17 LF |
363 | if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num) { |
364 | pr_err("Too few input end points found\n"); | |
365 | return -EINVAL; | |
366 | } | |
367 | if (rtlusb->out_ep_nums == 0) { | |
368 | pr_err("No output end points found\n"); | |
369 | return -EINVAL; | |
370 | } | |
2ca20f79 G |
371 | /* usb endpoint mapping */ |
372 | err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw); | |
373 | rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq; | |
374 | _rtl_usb_init_tx(hw); | |
375 | _rtl_usb_init_rx(hw); | |
376 | return err; | |
377 | } | |
378 | ||
8f526ab4 | 379 | static void rtl_usb_init_sw(struct ieee80211_hw *hw) |
2ca20f79 G |
380 | { |
381 | struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); | |
382 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
383 | struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); | |
384 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
385 | ||
386 | rtlhal->hw = hw; | |
7ea47240 LF |
387 | ppsc->inactiveps = false; |
388 | ppsc->leisure_ps = false; | |
389 | ppsc->fwctrl_lps = false; | |
390 | ppsc->reg_fwctrl_lps = 3; | |
2ca20f79 G |
391 | ppsc->reg_max_lps_awakeintvl = 5; |
392 | ppsc->fwctrl_psmode = FW_PS_DTIM_MODE; | |
393 | ||
394 | /* IBSS */ | |
395 | mac->beacon_interval = 100; | |
396 | ||
397 | /* AMPDU */ | |
398 | mac->min_space_cfg = 0; | |
399 | mac->max_mss_density = 0; | |
400 | ||
401 | /* set sane AMPDU defaults */ | |
402 | mac->current_ampdu_density = 7; | |
403 | mac->current_ampdu_factor = 3; | |
404 | ||
405 | /* QOS */ | |
406 | rtlusb->acm_method = eAcmWay2_SW; | |
407 | ||
408 | /* IRQ */ | |
409 | /* HIMR - turn all on */ | |
410 | rtlusb->irq_mask[0] = 0xFFFFFFFF; | |
411 | /* HIMR_EX - turn all on */ | |
412 | rtlusb->irq_mask[1] = 0xFFFFFFFF; | |
413 | rtlusb->disableHWSM = true; | |
2ca20f79 G |
414 | } |
415 | ||
2ca20f79 G |
416 | static void _rtl_rx_completed(struct urb *urb); |
417 | ||
872de8ff JK |
418 | static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb, |
419 | struct urb *urb, gfp_t gfp_mask) | |
2ca20f79 | 420 | { |
2ca20f79 | 421 | struct rtl_priv *rtlpriv = rtl_priv(hw); |
872de8ff | 422 | void *buf; |
2ca20f79 | 423 | |
872de8ff JK |
424 | buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask, |
425 | &urb->transfer_dma); | |
426 | if (!buf) { | |
2ca20f79 | 427 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, |
872de8ff JK |
428 | "Failed to usb_alloc_coherent!!\n"); |
429 | return -ENOMEM; | |
2ca20f79 G |
430 | } |
431 | ||
2ca20f79 G |
432 | usb_fill_bulk_urb(urb, rtlusb->udev, |
433 | usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep), | |
872de8ff JK |
434 | buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb); |
435 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
2ca20f79 | 436 | |
872de8ff | 437 | return 0; |
2ca20f79 G |
438 | } |
439 | ||
2ca20f79 G |
440 | static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw, |
441 | struct sk_buff *skb) | |
442 | { | |
443 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
444 | u8 *rxdesc = skb->data; | |
445 | struct ieee80211_hdr *hdr; | |
446 | bool unicast = false; | |
17c9ac62 | 447 | __le16 fc; |
2ca20f79 G |
448 | struct ieee80211_rx_status rx_status = {0}; |
449 | struct rtl_stats stats = { | |
450 | .signal = 0, | |
451 | .noise = -98, | |
452 | .rate = 0, | |
453 | }; | |
454 | ||
455 | skb_pull(skb, RTL_RX_DESC_SIZE); | |
456 | rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb); | |
457 | skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift)); | |
458 | hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 459 | fc = hdr->frame_control; |
7ea47240 | 460 | if (!stats.crc) { |
2ca20f79 G |
461 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
462 | ||
463 | if (is_broadcast_ether_addr(hdr->addr1)) { | |
464 | /*TODO*/; | |
465 | } else if (is_multicast_ether_addr(hdr->addr1)) { | |
466 | /*TODO*/ | |
467 | } else { | |
468 | unicast = true; | |
469 | rtlpriv->stats.rxbytesunicast += skb->len; | |
470 | } | |
471 | ||
472 | rtl_is_special_data(hw, skb, false); | |
473 | ||
474 | if (ieee80211_is_data(fc)) { | |
475 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); | |
476 | ||
477 | if (unicast) | |
478 | rtlpriv->link_info.num_rx_inperiod++; | |
479 | } | |
a4b29f1b LF |
480 | /* static bcn for roaming */ |
481 | rtl_beacon_statistic(hw, skb); | |
2ca20f79 G |
482 | } |
483 | } | |
484 | ||
485 | static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw, | |
486 | struct sk_buff *skb) | |
487 | { | |
488 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
489 | u8 *rxdesc = skb->data; | |
490 | struct ieee80211_hdr *hdr; | |
491 | bool unicast = false; | |
17c9ac62 | 492 | __le16 fc; |
2ca20f79 G |
493 | struct ieee80211_rx_status rx_status = {0}; |
494 | struct rtl_stats stats = { | |
495 | .signal = 0, | |
496 | .noise = -98, | |
497 | .rate = 0, | |
498 | }; | |
499 | ||
500 | skb_pull(skb, RTL_RX_DESC_SIZE); | |
501 | rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb); | |
502 | skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift)); | |
503 | hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 504 | fc = hdr->frame_control; |
7ea47240 | 505 | if (!stats.crc) { |
2ca20f79 G |
506 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
507 | ||
508 | if (is_broadcast_ether_addr(hdr->addr1)) { | |
509 | /*TODO*/; | |
510 | } else if (is_multicast_ether_addr(hdr->addr1)) { | |
511 | /*TODO*/ | |
512 | } else { | |
513 | unicast = true; | |
514 | rtlpriv->stats.rxbytesunicast += skb->len; | |
515 | } | |
516 | ||
517 | rtl_is_special_data(hw, skb, false); | |
518 | ||
519 | if (ieee80211_is_data(fc)) { | |
520 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); | |
521 | ||
522 | if (unicast) | |
523 | rtlpriv->link_info.num_rx_inperiod++; | |
524 | } | |
d7d0f081 | 525 | |
cc0446bf LF |
526 | /* static bcn for roaming */ |
527 | rtl_beacon_statistic(hw, skb); | |
528 | ||
d7d0f081 | 529 | if (likely(rtl_action_proc(hw, skb, false))) |
29bb7013 | 530 | ieee80211_rx(hw, skb); |
d7d0f081 | 531 | else |
2ca20f79 | 532 | dev_kfree_skb_any(skb); |
2ca20f79 G |
533 | } |
534 | } | |
535 | ||
536 | static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb) | |
537 | { | |
538 | struct sk_buff *_skb; | |
539 | struct sk_buff_head rx_queue; | |
540 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
541 | ||
542 | skb_queue_head_init(&rx_queue); | |
543 | if (rtlusb->usb_rx_segregate_hdl) | |
544 | rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue); | |
545 | WARN_ON(skb_queue_empty(&rx_queue)); | |
546 | while (!skb_queue_empty(&rx_queue)) { | |
547 | _skb = skb_dequeue(&rx_queue); | |
0a06ad8e | 548 | _rtl_usb_rx_process_agg(hw, _skb); |
29bb7013 JK |
549 | ieee80211_rx(hw, _skb); |
550 | } | |
551 | } | |
552 | ||
12470254 | 553 | #define __RX_SKB_MAX_QUEUED 64 |
29bb7013 JK |
554 | |
555 | static void _rtl_rx_work(unsigned long param) | |
556 | { | |
557 | struct rtl_usb *rtlusb = (struct rtl_usb *)param; | |
558 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); | |
559 | struct sk_buff *skb; | |
560 | ||
561 | while ((skb = skb_dequeue(&rtlusb->rx_queue))) { | |
562 | if (unlikely(IS_USB_STOP(rtlusb))) { | |
563 | dev_kfree_skb_any(skb); | |
564 | continue; | |
565 | } | |
566 | ||
567 | if (likely(!rtlusb->usb_rx_segregate_hdl)) { | |
568 | _rtl_usb_rx_process_noagg(hw, skb); | |
569 | } else { | |
570 | /* TO DO */ | |
571 | _rtl_rx_pre_process(hw, skb); | |
572 | pr_err("rx agg not supported\n"); | |
573 | } | |
2ca20f79 G |
574 | } |
575 | } | |
576 | ||
657e2765 JK |
577 | static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr, |
578 | unsigned int len) | |
579 | { | |
580 | unsigned int padding = 0; | |
581 | ||
582 | /* make function no-op when possible */ | |
583 | if (NET_IP_ALIGN == 0 || len < sizeof(*hdr)) | |
584 | return 0; | |
585 | ||
586 | /* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */ | |
587 | /* TODO: deduplicate common code, define helper function instead? */ | |
588 | ||
589 | if (ieee80211_is_data_qos(hdr->frame_control)) { | |
590 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
591 | ||
592 | padding ^= NET_IP_ALIGN; | |
593 | ||
594 | /* Input might be invalid, avoid accessing memory outside | |
595 | * the buffer. | |
596 | */ | |
597 | if ((unsigned long)qc - (unsigned long)hdr < len && | |
598 | *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT) | |
599 | padding ^= NET_IP_ALIGN; | |
600 | } | |
601 | ||
602 | if (ieee80211_has_a4(hdr->frame_control)) | |
603 | padding ^= NET_IP_ALIGN; | |
604 | ||
605 | return padding; | |
606 | } | |
607 | ||
872de8ff JK |
608 | #define __RADIO_TAP_SIZE_RSV 32 |
609 | ||
2ca20f79 G |
610 | static void _rtl_rx_completed(struct urb *_urb) |
611 | { | |
872de8ff | 612 | struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context; |
2ca20f79 G |
613 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); |
614 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
615 | int err = 0; | |
616 | ||
617 | if (unlikely(IS_USB_STOP(rtlusb))) | |
618 | goto free; | |
619 | ||
620 | if (likely(0 == _urb->status)) { | |
657e2765 | 621 | unsigned int padding; |
872de8ff | 622 | struct sk_buff *skb; |
29bb7013 | 623 | unsigned int qlen; |
872de8ff | 624 | unsigned int size = _urb->actual_length; |
657e2765 | 625 | struct ieee80211_hdr *hdr; |
872de8ff JK |
626 | |
627 | if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) { | |
628 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
629 | "Too short packet from bulk IN! (len: %d)\n", | |
630 | size); | |
631 | goto resubmit; | |
632 | } | |
633 | ||
29bb7013 JK |
634 | qlen = skb_queue_len(&rtlusb->rx_queue); |
635 | if (qlen >= __RX_SKB_MAX_QUEUED) { | |
636 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
637 | "Pending RX skbuff queue full! (qlen: %d)\n", | |
638 | qlen); | |
639 | goto resubmit; | |
640 | } | |
641 | ||
657e2765 JK |
642 | hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE); |
643 | padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE); | |
644 | ||
645 | skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding); | |
872de8ff JK |
646 | if (!skb) { |
647 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
648 | "Can't allocate skb for bulk IN!\n"); | |
649 | goto resubmit; | |
650 | } | |
651 | ||
652 | _rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep); | |
653 | ||
657e2765 JK |
654 | /* Make sure the payload data is 4 byte aligned. */ |
655 | skb_reserve(skb, padding); | |
656 | ||
872de8ff JK |
657 | /* reserve some space for mac80211's radiotap */ |
658 | skb_reserve(skb, __RADIO_TAP_SIZE_RSV); | |
659 | ||
660 | memcpy(skb_put(skb, size), _urb->transfer_buffer, size); | |
661 | ||
29bb7013 JK |
662 | skb_queue_tail(&rtlusb->rx_queue, skb); |
663 | tasklet_schedule(&rtlusb->rx_work_tasklet); | |
872de8ff | 664 | |
2ca20f79 G |
665 | goto resubmit; |
666 | } | |
667 | ||
668 | switch (_urb->status) { | |
669 | /* disconnect */ | |
670 | case -ENOENT: | |
671 | case -ECONNRESET: | |
672 | case -ENODEV: | |
673 | case -ESHUTDOWN: | |
674 | goto free; | |
675 | default: | |
676 | break; | |
677 | } | |
678 | ||
679 | resubmit: | |
2ca20f79 G |
680 | usb_anchor_urb(_urb, &rtlusb->rx_submitted); |
681 | err = usb_submit_urb(_urb, GFP_ATOMIC); | |
682 | if (unlikely(err)) { | |
683 | usb_unanchor_urb(_urb); | |
684 | goto free; | |
685 | } | |
686 | return; | |
687 | ||
688 | free: | |
872de8ff JK |
689 | /* On some architectures, usb_free_coherent must not be called from |
690 | * hardirq context. Queue urb to cleanup list. | |
691 | */ | |
692 | usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs); | |
693 | } | |
694 | ||
695 | #undef __RADIO_TAP_SIZE_RSV | |
696 | ||
697 | static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw) | |
698 | { | |
699 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
700 | struct urb *urb; | |
701 | ||
702 | usb_kill_anchored_urbs(&rtlusb->rx_submitted); | |
703 | ||
29bb7013 JK |
704 | tasklet_kill(&rtlusb->rx_work_tasklet); |
705 | skb_queue_purge(&rtlusb->rx_queue); | |
706 | ||
872de8ff JK |
707 | while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) { |
708 | usb_free_coherent(urb->dev, urb->transfer_buffer_length, | |
709 | urb->transfer_buffer, urb->transfer_dma); | |
710 | usb_free_urb(urb); | |
711 | } | |
2ca20f79 G |
712 | } |
713 | ||
714 | static int _rtl_usb_receive(struct ieee80211_hw *hw) | |
715 | { | |
716 | struct urb *urb; | |
2ca20f79 G |
717 | int err; |
718 | int i; | |
719 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
720 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
721 | ||
722 | WARN_ON(0 == rtlusb->rx_urb_num); | |
723 | /* 1600 == 1514 + max WLAN header + rtk info */ | |
724 | WARN_ON(rtlusb->rx_max_size < 1600); | |
725 | ||
726 | for (i = 0; i < rtlusb->rx_urb_num; i++) { | |
727 | err = -ENOMEM; | |
728 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
729 | if (!urb) { | |
730 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 731 | "Failed to alloc URB!!\n"); |
2ca20f79 G |
732 | goto err_out; |
733 | } | |
734 | ||
872de8ff JK |
735 | err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL); |
736 | if (err < 0) { | |
2ca20f79 | 737 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, |
f30d7507 | 738 | "Failed to prep_rx_urb!!\n"); |
1474a898 | 739 | usb_free_urb(urb); |
2ca20f79 G |
740 | goto err_out; |
741 | } | |
742 | ||
743 | usb_anchor_urb(urb, &rtlusb->rx_submitted); | |
744 | err = usb_submit_urb(urb, GFP_KERNEL); | |
745 | if (err) | |
746 | goto err_out; | |
747 | usb_free_urb(urb); | |
748 | } | |
749 | return 0; | |
750 | ||
751 | err_out: | |
752 | usb_kill_anchored_urbs(&rtlusb->rx_submitted); | |
872de8ff | 753 | _rtl_usb_cleanup_rx(hw); |
2ca20f79 G |
754 | return err; |
755 | } | |
756 | ||
757 | static int rtl_usb_start(struct ieee80211_hw *hw) | |
758 | { | |
759 | int err; | |
760 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
761 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
762 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
763 | ||
764 | err = rtlpriv->cfg->ops->hw_init(hw); | |
b0302aba LF |
765 | if (!err) { |
766 | rtl_init_rx_config(hw); | |
2ca20f79 | 767 | |
b0302aba LF |
768 | /* Enable software */ |
769 | SET_USB_START(rtlusb); | |
770 | /* should after adapter start and interrupt enable. */ | |
771 | set_hal_start(rtlhal); | |
2ca20f79 | 772 | |
b0302aba | 773 | /* Start bulk IN */ |
0c7e9207 | 774 | err = _rtl_usb_receive(hw); |
b0302aba | 775 | } |
2ca20f79 G |
776 | |
777 | return err; | |
778 | } | |
779 | /** | |
780 | * | |
781 | * | |
782 | */ | |
783 | ||
784 | /*======================= tx =========================================*/ | |
785 | static void rtl_usb_cleanup(struct ieee80211_hw *hw) | |
786 | { | |
787 | u32 i; | |
788 | struct sk_buff *_skb; | |
789 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
790 | struct ieee80211_tx_info *txinfo; | |
791 | ||
792 | SET_USB_STOP(rtlusb); | |
793 | ||
794 | /* clean up rx stuff. */ | |
872de8ff | 795 | _rtl_usb_cleanup_rx(hw); |
2ca20f79 G |
796 | |
797 | /* clean up tx stuff */ | |
798 | for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) { | |
799 | while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) { | |
800 | rtlusb->usb_tx_cleanup(hw, _skb); | |
801 | txinfo = IEEE80211_SKB_CB(_skb); | |
802 | ieee80211_tx_info_clear_status(txinfo); | |
803 | txinfo->flags |= IEEE80211_TX_STAT_ACK; | |
804 | ieee80211_tx_status_irqsafe(hw, _skb); | |
805 | } | |
806 | usb_kill_anchored_urbs(&rtlusb->tx_pending[i]); | |
807 | } | |
808 | usb_kill_anchored_urbs(&rtlusb->tx_submitted); | |
809 | } | |
810 | ||
811 | /** | |
812 | * | |
813 | * We may add some struct into struct rtl_usb later. Do deinit here. | |
814 | * | |
815 | */ | |
816 | static void rtl_usb_deinit(struct ieee80211_hw *hw) | |
817 | { | |
818 | rtl_usb_cleanup(hw); | |
819 | } | |
820 | ||
821 | static void rtl_usb_stop(struct ieee80211_hw *hw) | |
822 | { | |
823 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
824 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
825 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
5751935f | 826 | struct urb *urb; |
2ca20f79 G |
827 | |
828 | /* should after adapter start and interrupt enable. */ | |
829 | set_hal_stop(rtlhal); | |
5b8df24e | 830 | cancel_work_sync(&rtlpriv->works.fill_h2c_cmd); |
2ca20f79 G |
831 | /* Enable software */ |
832 | SET_USB_STOP(rtlusb); | |
833 | rtl_usb_deinit(hw); | |
5751935f MS |
834 | |
835 | /* free pre-allocated URBs from rtl_usb_start() */ | |
836 | usb_kill_anchored_urbs(&rtlusb->rx_submitted); | |
837 | ||
838 | tasklet_kill(&rtlusb->rx_work_tasklet); | |
839 | cancel_work_sync(&rtlpriv->works.lps_change_work); | |
840 | ||
841 | flush_workqueue(rtlpriv->works.rtl_wq); | |
842 | ||
843 | skb_queue_purge(&rtlusb->rx_queue); | |
844 | ||
845 | while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) { | |
846 | usb_free_coherent(urb->dev, urb->transfer_buffer_length, | |
847 | urb->transfer_buffer, urb->transfer_dma); | |
848 | usb_free_urb(urb); | |
849 | } | |
850 | ||
2ca20f79 G |
851 | rtlpriv->cfg->ops->hw_disable(hw); |
852 | } | |
853 | ||
854 | static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb) | |
855 | { | |
856 | int err; | |
857 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
858 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
859 | ||
860 | usb_anchor_urb(_urb, &rtlusb->tx_submitted); | |
861 | err = usb_submit_urb(_urb, GFP_ATOMIC); | |
862 | if (err < 0) { | |
863 | struct sk_buff *skb; | |
864 | ||
865 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 866 | "Failed to submit urb\n"); |
2ca20f79 G |
867 | usb_unanchor_urb(_urb); |
868 | skb = (struct sk_buff *)_urb->context; | |
869 | kfree_skb(skb); | |
870 | } | |
871 | usb_free_urb(_urb); | |
872 | } | |
873 | ||
874 | static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb, | |
875 | struct sk_buff *skb) | |
876 | { | |
877 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
878 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
879 | struct ieee80211_tx_info *txinfo; | |
880 | ||
881 | rtlusb->usb_tx_post_hdl(hw, urb, skb); | |
882 | skb_pull(skb, RTL_TX_HEADER_SIZE); | |
883 | txinfo = IEEE80211_SKB_CB(skb); | |
884 | ieee80211_tx_info_clear_status(txinfo); | |
885 | txinfo->flags |= IEEE80211_TX_STAT_ACK; | |
886 | ||
887 | if (urb->status) { | |
888 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 889 | "Urb has error status 0x%X\n", urb->status); |
2ca20f79 G |
890 | goto out; |
891 | } | |
892 | /* TODO: statistics */ | |
893 | out: | |
894 | ieee80211_tx_status_irqsafe(hw, skb); | |
895 | return urb->status; | |
896 | } | |
897 | ||
898 | static void _rtl_tx_complete(struct urb *urb) | |
899 | { | |
900 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
901 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
902 | struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0]; | |
903 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); | |
904 | int err; | |
905 | ||
906 | if (unlikely(IS_USB_STOP(rtlusb))) | |
907 | return; | |
908 | err = _usb_tx_post(hw, urb, skb); | |
909 | if (err) { | |
910 | /* Ignore error and keep issuiing other urbs */ | |
911 | return; | |
912 | } | |
913 | } | |
914 | ||
915 | static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw, | |
916 | struct sk_buff *skb, u32 ep_num) | |
917 | { | |
918 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
919 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
920 | struct urb *_urb; | |
921 | ||
922 | WARN_ON(NULL == skb); | |
923 | _urb = usb_alloc_urb(0, GFP_ATOMIC); | |
924 | if (!_urb) { | |
925 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 926 | "Can't allocate URB for bulk out!\n"); |
2ca20f79 G |
927 | kfree_skb(skb); |
928 | return NULL; | |
929 | } | |
930 | _rtl_install_trx_info(rtlusb, skb, ep_num); | |
931 | usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev, | |
932 | ep_num), skb->data, skb->len, _rtl_tx_complete, skb); | |
933 | _urb->transfer_flags |= URB_ZERO_PACKET; | |
934 | return _urb; | |
935 | } | |
936 | ||
937 | static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb, | |
938 | enum rtl_txq qnum) | |
939 | { | |
940 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
941 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
942 | u32 ep_num; | |
943 | struct urb *_urb = NULL; | |
944 | struct sk_buff *_skb = NULL; | |
2ca20f79 G |
945 | |
946 | WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl); | |
947 | if (unlikely(IS_USB_STOP(rtlusb))) { | |
948 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 949 | "USB device is stopping...\n"); |
2ca20f79 G |
950 | kfree_skb(skb); |
951 | return; | |
952 | } | |
953 | ep_num = rtlusb->ep_map.ep_mapping[qnum]; | |
2ca20f79 G |
954 | _skb = skb; |
955 | _urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num); | |
956 | if (unlikely(!_urb)) { | |
957 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | |
f30d7507 | 958 | "Can't allocate urb. Drop skb!\n"); |
36ef0b47 | 959 | kfree_skb(skb); |
2ca20f79 G |
960 | return; |
961 | } | |
2ca20f79 G |
962 | _rtl_submit_tx_urb(hw, _urb); |
963 | } | |
964 | ||
36323f81 TH |
965 | static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, |
966 | struct ieee80211_sta *sta, | |
967 | struct sk_buff *skb, | |
968 | u16 hw_queue) | |
2ca20f79 G |
969 | { |
970 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
971 | struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); | |
972 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
973 | struct rtl_tx_desc *pdesc = NULL; | |
d93cdee9 | 974 | struct rtl_tcb_desc tcb_desc; |
2ca20f79 | 975 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); |
17c9ac62 | 976 | __le16 fc = hdr->frame_control; |
2ca20f79 G |
977 | u8 *pda_addr = hdr->addr1; |
978 | /* ssn */ | |
979 | u8 *qc = NULL; | |
980 | u8 tid = 0; | |
981 | u16 seq_number = 0; | |
982 | ||
831d8547 | 983 | memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); |
d93cdee9 | 984 | if (ieee80211_is_auth(fc)) { |
f30d7507 | 985 | RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); |
d93cdee9 C |
986 | rtl_ips_nic_on(hw); |
987 | } | |
988 | ||
989 | if (rtlpriv->psc.sw_ps_enabled) { | |
990 | if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) && | |
991 | !ieee80211_has_pm(fc)) | |
992 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
993 | } | |
994 | ||
2ca20f79 G |
995 | rtl_action_proc(hw, skb, true); |
996 | if (is_multicast_ether_addr(pda_addr)) | |
997 | rtlpriv->stats.txbytesmulticast += skb->len; | |
998 | else if (is_broadcast_ether_addr(pda_addr)) | |
999 | rtlpriv->stats.txbytesbroadcast += skb->len; | |
1000 | else | |
1001 | rtlpriv->stats.txbytesunicast += skb->len; | |
1002 | if (ieee80211_is_data_qos(fc)) { | |
1003 | qc = ieee80211_get_qos_ctl(hdr); | |
1004 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; | |
1005 | seq_number = (le16_to_cpu(hdr->seq_ctrl) & | |
1006 | IEEE80211_SCTL_SEQ) >> 4; | |
1007 | seq_number += 1; | |
1008 | seq_number <<= 4; | |
1009 | } | |
36323f81 | 1010 | rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, sta, skb, |
d93cdee9 | 1011 | hw_queue, &tcb_desc); |
2ca20f79 G |
1012 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
1013 | if (qc) | |
1014 | mac->tids[tid].seq_number = seq_number; | |
1015 | } | |
1016 | if (ieee80211_is_data(fc)) | |
1017 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX); | |
1018 | } | |
1019 | ||
36323f81 TH |
1020 | static int rtl_usb_tx(struct ieee80211_hw *hw, |
1021 | struct ieee80211_sta *sta, | |
1022 | struct sk_buff *skb, | |
0baa0fd7 | 1023 | struct rtl_tcb_desc *dummy) |
2ca20f79 G |
1024 | { |
1025 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
1026 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
1027 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 1028 | __le16 fc = hdr->frame_control; |
2ca20f79 G |
1029 | u16 hw_queue; |
1030 | ||
1031 | if (unlikely(is_hal_stop(rtlhal))) | |
1032 | goto err_free; | |
1033 | hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb)); | |
36323f81 | 1034 | _rtl_usb_tx_preprocess(hw, sta, skb, hw_queue); |
2ca20f79 G |
1035 | _rtl_usb_transmit(hw, skb, hw_queue); |
1036 | return NETDEV_TX_OK; | |
1037 | ||
1038 | err_free: | |
1039 | dev_kfree_skb_any(skb); | |
1040 | return NETDEV_TX_OK; | |
1041 | } | |
1042 | ||
1043 | static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw, | |
36323f81 | 1044 | struct ieee80211_sta *sta, |
2ca20f79 G |
1045 | struct sk_buff *skb) |
1046 | { | |
1047 | return false; | |
1048 | } | |
1049 | ||
5b8df24e LF |
1050 | static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work) |
1051 | { | |
1052 | struct rtl_works *rtlworks = | |
1053 | container_of(work, struct rtl_works, fill_h2c_cmd); | |
1054 | struct ieee80211_hw *hw = rtlworks->hw; | |
1055 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
1056 | ||
1057 | rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask); | |
1058 | } | |
1059 | ||
2ca20f79 G |
1060 | static struct rtl_intf_ops rtl_usb_ops = { |
1061 | .adapter_start = rtl_usb_start, | |
1062 | .adapter_stop = rtl_usb_stop, | |
1063 | .adapter_tx = rtl_usb_tx, | |
1064 | .waitq_insert = rtl_usb_tx_chk_waitq_insert, | |
1065 | }; | |
1066 | ||
9e2ff36b | 1067 | int rtl_usb_probe(struct usb_interface *intf, |
957f4aca LF |
1068 | const struct usb_device_id *id, |
1069 | struct rtl_hal_cfg *rtl_hal_cfg) | |
2ca20f79 G |
1070 | { |
1071 | int err; | |
1072 | struct ieee80211_hw *hw = NULL; | |
1073 | struct rtl_priv *rtlpriv = NULL; | |
1074 | struct usb_device *udev; | |
1075 | struct rtl_usb_priv *usb_priv; | |
1076 | ||
1077 | hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) + | |
1078 | sizeof(struct rtl_usb_priv), &rtl_ops); | |
1079 | if (!hw) { | |
9d833ed7 | 1080 | RT_ASSERT(false, "ieee80211 alloc failed\n"); |
2ca20f79 G |
1081 | return -ENOMEM; |
1082 | } | |
1083 | rtlpriv = hw->priv; | |
a7959c13 LF |
1084 | rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32), |
1085 | GFP_KERNEL); | |
1086 | if (!rtlpriv->usb_data) | |
1087 | return -ENOMEM; | |
3ce4d85b LF |
1088 | |
1089 | /* this spin lock must be initialized early */ | |
1090 | spin_lock_init(&rtlpriv->locks.usb_lock); | |
5b8df24e LF |
1091 | INIT_WORK(&rtlpriv->works.fill_h2c_cmd, |
1092 | rtl_fill_h2c_cmd_work_callback); | |
758057d6 LF |
1093 | INIT_WORK(&rtlpriv->works.lps_change_work, |
1094 | rtl_lps_change_work_callback); | |
3ce4d85b | 1095 | |
a7959c13 | 1096 | rtlpriv->usb_data_index = 0; |
b0302aba | 1097 | init_completion(&rtlpriv->firmware_loading_complete); |
2ca20f79 G |
1098 | SET_IEEE80211_DEV(hw, &intf->dev); |
1099 | udev = interface_to_usbdev(intf); | |
1100 | usb_get_dev(udev); | |
1101 | usb_priv = rtl_usbpriv(hw); | |
1102 | memset(usb_priv, 0, sizeof(*usb_priv)); | |
1103 | usb_priv->dev.intf = intf; | |
1104 | usb_priv->dev.udev = udev; | |
1105 | usb_set_intfdata(intf, hw); | |
1106 | /* init cfg & intf_ops */ | |
1107 | rtlpriv->rtlhal.interface = INTF_USB; | |
957f4aca | 1108 | rtlpriv->cfg = rtl_hal_cfg; |
2ca20f79 G |
1109 | rtlpriv->intf_ops = &rtl_usb_ops; |
1110 | rtl_dbgp_flag_init(hw); | |
1111 | /* Init IO handler */ | |
1112 | _rtl_usb_io_handler_init(&udev->dev, hw); | |
1113 | rtlpriv->cfg->ops->read_chip_version(hw); | |
1114 | /*like read eeprom and so on */ | |
1115 | rtlpriv->cfg->ops->read_eeprom_info(hw); | |
2ca20f79 | 1116 | err = _rtl_usb_init(hw); |
48de1a17 LF |
1117 | if (err) |
1118 | goto error_out; | |
8f526ab4 | 1119 | rtl_usb_init_sw(hw); |
2ca20f79 G |
1120 | /* Init mac80211 sw */ |
1121 | err = rtl_init_core(hw); | |
1122 | if (err) { | |
1123 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | |
f30d7507 | 1124 | "Can't allocate sw for mac80211\n"); |
2ca20f79 G |
1125 | goto error_out; |
1126 | } | |
574e02ab LF |
1127 | if (rtlpriv->cfg->ops->init_sw_vars(hw)) { |
1128 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n"); | |
1129 | goto error_out; | |
1130 | } | |
1131 | rtlpriv->cfg->ops->init_sw_leds(hw); | |
2ca20f79 | 1132 | |
2ca20f79 G |
1133 | return 0; |
1134 | error_out: | |
1135 | rtl_deinit_core(hw); | |
1136 | _rtl_usb_io_handler_release(hw); | |
2ca20f79 | 1137 | usb_put_dev(udev); |
b0302aba | 1138 | complete(&rtlpriv->firmware_loading_complete); |
2ca20f79 G |
1139 | return -ENODEV; |
1140 | } | |
1141 | EXPORT_SYMBOL(rtl_usb_probe); | |
1142 | ||
1143 | void rtl_usb_disconnect(struct usb_interface *intf) | |
1144 | { | |
1145 | struct ieee80211_hw *hw = usb_get_intfdata(intf); | |
1146 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
1147 | struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); | |
1148 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
1149 | ||
1150 | if (unlikely(!rtlpriv)) | |
1151 | return; | |
b0302aba LF |
1152 | |
1153 | /* just in case driver is removed before firmware callback */ | |
1154 | wait_for_completion(&rtlpriv->firmware_loading_complete); | |
2ca20f79 G |
1155 | /*ieee80211_unregister_hw will call ops_stop */ |
1156 | if (rtlmac->mac80211_registered == 1) { | |
1157 | ieee80211_unregister_hw(hw); | |
1158 | rtlmac->mac80211_registered = 0; | |
1159 | } else { | |
1160 | rtl_deinit_deferred_work(hw); | |
1161 | rtlpriv->intf_ops->adapter_stop(hw); | |
1162 | } | |
1163 | /*deinit rfkill */ | |
1164 | /* rtl_deinit_rfkill(hw); */ | |
1165 | rtl_usb_deinit(hw); | |
1166 | rtl_deinit_core(hw); | |
a7959c13 | 1167 | kfree(rtlpriv->usb_data); |
2ca20f79 G |
1168 | rtlpriv->cfg->ops->deinit_sw_leds(hw); |
1169 | rtlpriv->cfg->ops->deinit_sw_vars(hw); | |
1170 | _rtl_usb_io_handler_release(hw); | |
1171 | usb_put_dev(rtlusb->udev); | |
1172 | usb_set_intfdata(intf, NULL); | |
1173 | ieee80211_free_hw(hw); | |
1174 | } | |
1175 | EXPORT_SYMBOL(rtl_usb_disconnect); | |
1176 | ||
1177 | int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message) | |
1178 | { | |
1179 | return 0; | |
1180 | } | |
1181 | EXPORT_SYMBOL(rtl_usb_suspend); | |
1182 | ||
1183 | int rtl_usb_resume(struct usb_interface *pusb_intf) | |
1184 | { | |
1185 | return 0; | |
1186 | } | |
1187 | EXPORT_SYMBOL(rtl_usb_resume); |