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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> |
6f334c2b LF |
35 | #include <linux/module.h> |
36 | ||
37 | MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); | |
38 | MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); | |
39 | MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); | |
40 | MODULE_LICENSE("GPL"); | |
41 | MODULE_DESCRIPTION("USB basic driver for rtlwifi"); | |
2ca20f79 G |
42 | |
43 | #define REALTEK_USB_VENQT_READ 0xC0 | |
44 | #define REALTEK_USB_VENQT_WRITE 0x40 | |
45 | #define REALTEK_USB_VENQT_CMD_REQ 0x05 | |
46 | #define REALTEK_USB_VENQT_CMD_IDX 0x00 | |
47 | ||
040a7278 | 48 | #define MAX_USBCTRL_VENDORREQ_TIMES 10 |
2ca20f79 G |
49 | |
50 | static void usbctrl_async_callback(struct urb *urb) | |
51 | { | |
bc6b8923 JK |
52 | if (urb) { |
53 | /* free dr */ | |
54 | kfree(urb->setup_packet); | |
55 | /* free databuf */ | |
56 | kfree(urb->transfer_buffer); | |
57 | } | |
2ca20f79 G |
58 | } |
59 | ||
60 | static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request, | |
61 | u16 value, u16 index, void *pdata, | |
62 | u16 len) | |
63 | { | |
64 | int rc; | |
65 | unsigned int pipe; | |
66 | u8 reqtype; | |
67 | struct usb_ctrlrequest *dr; | |
68 | struct urb *urb; | |
bc6b8923 JK |
69 | const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE; |
70 | u8 *databuf; | |
71 | ||
72 | if (WARN_ON_ONCE(len > databuf_maxlen)) | |
73 | len = databuf_maxlen; | |
2ca20f79 G |
74 | |
75 | pipe = usb_sndctrlpipe(udev, 0); /* write_out */ | |
76 | reqtype = REALTEK_USB_VENQT_WRITE; | |
77 | ||
ef09396e | 78 | dr = kzalloc(sizeof(*dr), GFP_ATOMIC); |
bc6b8923 | 79 | if (!dr) |
2ca20f79 G |
80 | return -ENOMEM; |
81 | ||
ef09396e | 82 | databuf = kzalloc(databuf_maxlen, GFP_ATOMIC); |
bc6b8923 JK |
83 | if (!databuf) { |
84 | kfree(dr); | |
85 | return -ENOMEM; | |
86 | } | |
87 | ||
2ca20f79 G |
88 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
89 | if (!urb) { | |
bc6b8923 JK |
90 | kfree(databuf); |
91 | kfree(dr); | |
2ca20f79 G |
92 | return -ENOMEM; |
93 | } | |
94 | ||
2ca20f79 G |
95 | dr->bRequestType = reqtype; |
96 | dr->bRequest = request; | |
97 | dr->wValue = cpu_to_le16(value); | |
98 | dr->wIndex = cpu_to_le16(index); | |
99 | dr->wLength = cpu_to_le16(len); | |
abfabc9b | 100 | /* data are already in little-endian order */ |
bc6b8923 | 101 | memcpy(databuf, pdata, len); |
2ca20f79 | 102 | usb_fill_control_urb(urb, udev, pipe, |
bc6b8923 JK |
103 | (unsigned char *)dr, databuf, len, |
104 | usbctrl_async_callback, NULL); | |
2ca20f79 | 105 | rc = usb_submit_urb(urb, GFP_ATOMIC); |
bc6b8923 JK |
106 | if (rc < 0) { |
107 | kfree(databuf); | |
108 | kfree(dr); | |
109 | } | |
2ca20f79 G |
110 | usb_free_urb(urb); |
111 | return rc; | |
112 | } | |
113 | ||
114 | static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request, | |
115 | u16 value, u16 index, void *pdata, | |
116 | u16 len) | |
117 | { | |
118 | unsigned int pipe; | |
119 | int status; | |
120 | u8 reqtype; | |
040a7278 | 121 | int vendorreq_times = 0; |
abfabc9b | 122 | static int count; |
2ca20f79 G |
123 | |
124 | pipe = usb_rcvctrlpipe(udev, 0); /* read_in */ | |
125 | reqtype = REALTEK_USB_VENQT_READ; | |
126 | ||
eb1852b1 | 127 | do { |
040a7278 | 128 | status = usb_control_msg(udev, pipe, request, reqtype, value, |
414b7e3b | 129 | index, pdata, len, 1000); |
040a7278 G |
130 | if (status < 0) { |
131 | /* firmware download is checksumed, don't retry */ | |
132 | if ((value >= FW_8192C_START_ADDRESS && | |
133 | value <= FW_8192C_END_ADDRESS)) | |
134 | break; | |
135 | } else { | |
136 | break; | |
137 | } | |
eb1852b1 JL |
138 | } while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES); |
139 | ||
abfabc9b | 140 | if (status < 0 && count++ < 4) |
292b1192 | 141 | pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n", |
8e2c406a | 142 | value, status, *(u32 *)pdata); |
2ca20f79 G |
143 | return status; |
144 | } | |
145 | ||
a7959c13 | 146 | static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len) |
2ca20f79 | 147 | { |
a7959c13 LF |
148 | struct device *dev = rtlpriv->io.dev; |
149 | struct usb_device *udev = to_usb_device(dev); | |
2ca20f79 G |
150 | u8 request; |
151 | u16 wvalue; | |
152 | u16 index; | |
3ce4d85b LF |
153 | __le32 *data; |
154 | unsigned long flags; | |
2ca20f79 | 155 | |
3ce4d85b LF |
156 | spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags); |
157 | if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) | |
158 | rtlpriv->usb_data_index = 0; | |
159 | data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; | |
160 | spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags); | |
2ca20f79 G |
161 | request = REALTEK_USB_VENQT_CMD_REQ; |
162 | index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ | |
163 | ||
164 | wvalue = (u16)addr; | |
165 | _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); | |
a7959c13 | 166 | return le32_to_cpu(*data); |
2ca20f79 G |
167 | } |
168 | ||
169 | static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr) | |
170 | { | |
a7959c13 | 171 | return (u8)_usb_read_sync(rtlpriv, addr, 1); |
2ca20f79 G |
172 | } |
173 | ||
174 | static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr) | |
175 | { | |
a7959c13 | 176 | return (u16)_usb_read_sync(rtlpriv, addr, 2); |
2ca20f79 G |
177 | } |
178 | ||
179 | static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr) | |
180 | { | |
a7959c13 | 181 | return _usb_read_sync(rtlpriv, addr, 4); |
2ca20f79 G |
182 | } |
183 | ||
184 | static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val, | |
185 | u16 len) | |
186 | { | |
187 | u8 request; | |
188 | u16 wvalue; | |
189 | u16 index; | |
abfabc9b | 190 | __le32 data; |
2ca20f79 G |
191 | |
192 | request = REALTEK_USB_VENQT_CMD_REQ; | |
193 | index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ | |
194 | wvalue = (u16)(addr&0x0000ffff); | |
abfabc9b | 195 | data = cpu_to_le32(val); |
2ca20f79 G |
196 | _usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data, |
197 | len); | |
198 | } | |
199 | ||
200 | static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val) | |
201 | { | |
202 | struct device *dev = rtlpriv->io.dev; | |
203 | ||
204 | _usb_write_async(to_usb_device(dev), addr, val, 1); | |
205 | } | |
206 | ||
207 | static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val) | |
208 | { | |
209 | struct device *dev = rtlpriv->io.dev; | |
210 | ||
211 | _usb_write_async(to_usb_device(dev), addr, val, 2); | |
212 | } | |
213 | ||
214 | static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val) | |
215 | { | |
216 | struct device *dev = rtlpriv->io.dev; | |
217 | ||
218 | _usb_write_async(to_usb_device(dev), addr, val, 4); | |
219 | } | |
220 | ||
ff6ff96b LF |
221 | static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data, |
222 | u16 len) | |
223 | { | |
224 | struct device *dev = rtlpriv->io.dev; | |
225 | struct usb_device *udev = to_usb_device(dev); | |
226 | u8 request = REALTEK_USB_VENQT_CMD_REQ; | |
227 | u8 reqtype = REALTEK_USB_VENQT_WRITE; | |
228 | u16 wvalue; | |
229 | u16 index = REALTEK_USB_VENQT_CMD_IDX; | |
230 | int pipe = usb_sndctrlpipe(udev, 0); /* write_out */ | |
231 | u8 *buffer; | |
ff6ff96b | 232 | |
4c3de592 | 233 | wvalue = (u16)(addr & 0x0000ffff); |
7c21bb69 | 234 | buffer = kmemdup(data, len, GFP_ATOMIC); |
ff6ff96b LF |
235 | if (!buffer) |
236 | return; | |
ff6ff96b LF |
237 | usb_control_msg(udev, pipe, request, reqtype, wvalue, |
238 | index, buffer, len, 50); | |
239 | ||
4c3de592 | 240 | kfree(buffer); |
ff6ff96b LF |
241 | } |
242 | ||
2ca20f79 G |
243 | static void _rtl_usb_io_handler_init(struct device *dev, |
244 | struct ieee80211_hw *hw) | |
245 | { | |
246 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
247 | ||
248 | rtlpriv->io.dev = dev; | |
249 | mutex_init(&rtlpriv->io.bb_mutex); | |
250 | rtlpriv->io.write8_async = _usb_write8_async; | |
251 | rtlpriv->io.write16_async = _usb_write16_async; | |
252 | rtlpriv->io.write32_async = _usb_write32_async; | |
2ca20f79 G |
253 | rtlpriv->io.read8_sync = _usb_read8_sync; |
254 | rtlpriv->io.read16_sync = _usb_read16_sync; | |
255 | rtlpriv->io.read32_sync = _usb_read32_sync; | |
ff6ff96b | 256 | rtlpriv->io.writeN_sync = _usb_writeN_sync; |
2ca20f79 G |
257 | } |
258 | ||
259 | static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw) | |
260 | { | |
2e3e66e3 | 261 | struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw); |
2ca20f79 G |
262 | |
263 | mutex_destroy(&rtlpriv->io.bb_mutex); | |
264 | } | |
265 | ||
266 | /** | |
267 | * | |
268 | * Default aggregation handler. Do nothing and just return the oldest skb. | |
269 | */ | |
270 | static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw, | |
271 | struct sk_buff_head *list) | |
272 | { | |
273 | return skb_dequeue(list); | |
274 | } | |
275 | ||
276 | #define IS_HIGH_SPEED_USB(udev) \ | |
277 | ((USB_SPEED_HIGH == (udev)->speed) ? true : false) | |
278 | ||
279 | static int _rtl_usb_init_tx(struct ieee80211_hw *hw) | |
280 | { | |
281 | u32 i; | |
282 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
283 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
284 | ||
285 | rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev) | |
286 | ? USB_HIGH_SPEED_BULK_SIZE | |
287 | : USB_FULL_SPEED_BULK_SIZE; | |
288 | ||
f30d7507 JP |
289 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n", |
290 | rtlusb->max_bulk_out_size); | |
2ca20f79 G |
291 | |
292 | for (i = 0; i < __RTL_TXQ_NUM; i++) { | |
293 | u32 ep_num = rtlusb->ep_map.ep_mapping[i]; | |
294 | if (!ep_num) { | |
295 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, | |
f30d7507 | 296 | "Invalid endpoint map setting!\n"); |
2ca20f79 G |
297 | return -EINVAL; |
298 | } | |
299 | } | |
300 | ||
301 | rtlusb->usb_tx_post_hdl = | |
302 | rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl; | |
303 | rtlusb->usb_tx_cleanup = | |
304 | rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup; | |
305 | rtlusb->usb_tx_aggregate_hdl = | |
306 | (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl) | |
307 | ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl | |
308 | : &_none_usb_tx_aggregate_hdl; | |
309 | ||
310 | init_usb_anchor(&rtlusb->tx_submitted); | |
311 | for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) { | |
312 | skb_queue_head_init(&rtlusb->tx_skb_queue[i]); | |
313 | init_usb_anchor(&rtlusb->tx_pending[i]); | |
314 | } | |
315 | return 0; | |
316 | } | |
317 | ||
29bb7013 JK |
318 | static void _rtl_rx_work(unsigned long param); |
319 | ||
2ca20f79 G |
320 | static int _rtl_usb_init_rx(struct ieee80211_hw *hw) |
321 | { | |
322 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
323 | struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw); | |
324 | struct rtl_usb *rtlusb = rtl_usbdev(usb_priv); | |
325 | ||
326 | rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size; | |
327 | rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num; | |
328 | rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num; | |
329 | rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl; | |
330 | rtlusb->usb_rx_segregate_hdl = | |
331 | rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl; | |
332 | ||
292b1192 | 333 | pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n", |
2ca20f79 G |
334 | rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep); |
335 | init_usb_anchor(&rtlusb->rx_submitted); | |
872de8ff | 336 | init_usb_anchor(&rtlusb->rx_cleanup_urbs); |
29bb7013 JK |
337 | |
338 | skb_queue_head_init(&rtlusb->rx_queue); | |
339 | rtlusb->rx_work_tasklet.func = _rtl_rx_work; | |
340 | rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb; | |
341 | ||
2ca20f79 G |
342 | return 0; |
343 | } | |
344 | ||
345 | static int _rtl_usb_init(struct ieee80211_hw *hw) | |
346 | { | |
347 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
348 | struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw); | |
349 | struct rtl_usb *rtlusb = rtl_usbdev(usb_priv); | |
350 | int err; | |
351 | u8 epidx; | |
352 | struct usb_interface *usb_intf = rtlusb->intf; | |
353 | u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints; | |
354 | ||
355 | rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0; | |
356 | for (epidx = 0; epidx < epnums; epidx++) { | |
357 | struct usb_endpoint_descriptor *pep_desc; | |
358 | pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc; | |
359 | ||
360 | if (usb_endpoint_dir_in(pep_desc)) | |
361 | rtlusb->in_ep_nums++; | |
362 | else if (usb_endpoint_dir_out(pep_desc)) | |
363 | rtlusb->out_ep_nums++; | |
364 | ||
365 | RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, | |
f30d7507 | 366 | "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n", |
2ca20f79 | 367 | pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize, |
f30d7507 | 368 | pep_desc->bInterval); |
2ca20f79 | 369 | } |
48de1a17 LF |
370 | if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num) { |
371 | pr_err("Too few input end points found\n"); | |
372 | return -EINVAL; | |
373 | } | |
374 | if (rtlusb->out_ep_nums == 0) { | |
375 | pr_err("No output end points found\n"); | |
376 | return -EINVAL; | |
377 | } | |
2ca20f79 G |
378 | /* usb endpoint mapping */ |
379 | err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw); | |
380 | rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq; | |
381 | _rtl_usb_init_tx(hw); | |
382 | _rtl_usb_init_rx(hw); | |
383 | return err; | |
384 | } | |
385 | ||
8f526ab4 | 386 | static void rtl_usb_init_sw(struct ieee80211_hw *hw) |
2ca20f79 G |
387 | { |
388 | struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); | |
389 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
390 | struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); | |
391 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
392 | ||
393 | rtlhal->hw = hw; | |
7ea47240 LF |
394 | ppsc->inactiveps = false; |
395 | ppsc->leisure_ps = false; | |
396 | ppsc->fwctrl_lps = false; | |
397 | ppsc->reg_fwctrl_lps = 3; | |
2ca20f79 G |
398 | ppsc->reg_max_lps_awakeintvl = 5; |
399 | ppsc->fwctrl_psmode = FW_PS_DTIM_MODE; | |
400 | ||
401 | /* IBSS */ | |
402 | mac->beacon_interval = 100; | |
403 | ||
404 | /* AMPDU */ | |
405 | mac->min_space_cfg = 0; | |
406 | mac->max_mss_density = 0; | |
407 | ||
408 | /* set sane AMPDU defaults */ | |
409 | mac->current_ampdu_density = 7; | |
410 | mac->current_ampdu_factor = 3; | |
411 | ||
412 | /* QOS */ | |
2cddad3c | 413 | rtlusb->acm_method = EACMWAY2_SW; |
2ca20f79 G |
414 | |
415 | /* IRQ */ | |
416 | /* HIMR - turn all on */ | |
417 | rtlusb->irq_mask[0] = 0xFFFFFFFF; | |
418 | /* HIMR_EX - turn all on */ | |
419 | rtlusb->irq_mask[1] = 0xFFFFFFFF; | |
420 | rtlusb->disableHWSM = true; | |
2ca20f79 G |
421 | } |
422 | ||
2ca20f79 G |
423 | static void _rtl_rx_completed(struct urb *urb); |
424 | ||
872de8ff JK |
425 | static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb, |
426 | struct urb *urb, gfp_t gfp_mask) | |
2ca20f79 | 427 | { |
2ca20f79 | 428 | struct rtl_priv *rtlpriv = rtl_priv(hw); |
872de8ff | 429 | void *buf; |
2ca20f79 | 430 | |
872de8ff JK |
431 | buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask, |
432 | &urb->transfer_dma); | |
433 | if (!buf) { | |
2ca20f79 | 434 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, |
872de8ff JK |
435 | "Failed to usb_alloc_coherent!!\n"); |
436 | return -ENOMEM; | |
2ca20f79 G |
437 | } |
438 | ||
2ca20f79 G |
439 | usb_fill_bulk_urb(urb, rtlusb->udev, |
440 | usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep), | |
872de8ff JK |
441 | buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb); |
442 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
2ca20f79 | 443 | |
872de8ff | 444 | return 0; |
2ca20f79 G |
445 | } |
446 | ||
2ca20f79 G |
447 | static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw, |
448 | struct sk_buff *skb) | |
449 | { | |
450 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
451 | u8 *rxdesc = skb->data; | |
452 | struct ieee80211_hdr *hdr; | |
453 | bool unicast = false; | |
17c9ac62 | 454 | __le16 fc; |
2ca20f79 G |
455 | struct ieee80211_rx_status rx_status = {0}; |
456 | struct rtl_stats stats = { | |
457 | .signal = 0, | |
2ca20f79 G |
458 | .rate = 0, |
459 | }; | |
460 | ||
461 | skb_pull(skb, RTL_RX_DESC_SIZE); | |
462 | rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb); | |
463 | skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift)); | |
464 | hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 465 | fc = hdr->frame_control; |
7ea47240 | 466 | if (!stats.crc) { |
2ca20f79 G |
467 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
468 | ||
469 | if (is_broadcast_ether_addr(hdr->addr1)) { | |
470 | /*TODO*/; | |
471 | } else if (is_multicast_ether_addr(hdr->addr1)) { | |
472 | /*TODO*/ | |
473 | } else { | |
474 | unicast = true; | |
475 | rtlpriv->stats.rxbytesunicast += skb->len; | |
476 | } | |
477 | ||
2ca20f79 G |
478 | if (ieee80211_is_data(fc)) { |
479 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); | |
480 | ||
481 | if (unicast) | |
482 | rtlpriv->link_info.num_rx_inperiod++; | |
483 | } | |
65b9cc97 LF |
484 | /* static bcn for roaming */ |
485 | rtl_beacon_statistic(hw, skb); | |
2ca20f79 G |
486 | } |
487 | } | |
488 | ||
489 | static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw, | |
490 | struct sk_buff *skb) | |
491 | { | |
492 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
493 | u8 *rxdesc = skb->data; | |
494 | struct ieee80211_hdr *hdr; | |
495 | bool unicast = false; | |
17c9ac62 | 496 | __le16 fc; |
2ca20f79 G |
497 | struct ieee80211_rx_status rx_status = {0}; |
498 | struct rtl_stats stats = { | |
499 | .signal = 0, | |
2ca20f79 G |
500 | .rate = 0, |
501 | }; | |
502 | ||
503 | skb_pull(skb, RTL_RX_DESC_SIZE); | |
504 | rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb); | |
505 | skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift)); | |
506 | hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 507 | fc = hdr->frame_control; |
7ea47240 | 508 | if (!stats.crc) { |
2ca20f79 G |
509 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
510 | ||
511 | if (is_broadcast_ether_addr(hdr->addr1)) { | |
512 | /*TODO*/; | |
513 | } else if (is_multicast_ether_addr(hdr->addr1)) { | |
514 | /*TODO*/ | |
515 | } else { | |
516 | unicast = true; | |
517 | rtlpriv->stats.rxbytesunicast += skb->len; | |
518 | } | |
519 | ||
2ca20f79 G |
520 | if (ieee80211_is_data(fc)) { |
521 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); | |
522 | ||
523 | if (unicast) | |
524 | rtlpriv->link_info.num_rx_inperiod++; | |
525 | } | |
d7d0f081 | 526 | |
cc0446bf LF |
527 | /* static bcn for roaming */ |
528 | rtl_beacon_statistic(hw, skb); | |
529 | ||
d7d0f081 | 530 | if (likely(rtl_action_proc(hw, skb, false))) |
29bb7013 | 531 | ieee80211_rx(hw, skb); |
d7d0f081 | 532 | else |
2ca20f79 | 533 | dev_kfree_skb_any(skb); |
17bc5586 PW |
534 | } else { |
535 | dev_kfree_skb_any(skb); | |
2ca20f79 G |
536 | } |
537 | } | |
538 | ||
539 | static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb) | |
540 | { | |
541 | struct sk_buff *_skb; | |
542 | struct sk_buff_head rx_queue; | |
543 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
544 | ||
545 | skb_queue_head_init(&rx_queue); | |
546 | if (rtlusb->usb_rx_segregate_hdl) | |
547 | rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue); | |
548 | WARN_ON(skb_queue_empty(&rx_queue)); | |
549 | while (!skb_queue_empty(&rx_queue)) { | |
550 | _skb = skb_dequeue(&rx_queue); | |
0a06ad8e | 551 | _rtl_usb_rx_process_agg(hw, _skb); |
29bb7013 JK |
552 | ieee80211_rx(hw, _skb); |
553 | } | |
554 | } | |
555 | ||
dc640571 | 556 | #define __RX_SKB_MAX_QUEUED 64 |
29bb7013 JK |
557 | |
558 | static void _rtl_rx_work(unsigned long param) | |
559 | { | |
560 | struct rtl_usb *rtlusb = (struct rtl_usb *)param; | |
561 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); | |
562 | struct sk_buff *skb; | |
563 | ||
564 | while ((skb = skb_dequeue(&rtlusb->rx_queue))) { | |
565 | if (unlikely(IS_USB_STOP(rtlusb))) { | |
566 | dev_kfree_skb_any(skb); | |
567 | continue; | |
568 | } | |
569 | ||
570 | if (likely(!rtlusb->usb_rx_segregate_hdl)) { | |
571 | _rtl_usb_rx_process_noagg(hw, skb); | |
572 | } else { | |
573 | /* TO DO */ | |
574 | _rtl_rx_pre_process(hw, skb); | |
575 | pr_err("rx agg not supported\n"); | |
576 | } | |
2ca20f79 G |
577 | } |
578 | } | |
579 | ||
657e2765 JK |
580 | static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr, |
581 | unsigned int len) | |
582 | { | |
354d0f3c | 583 | #if NET_IP_ALIGN != 0 |
657e2765 | 584 | unsigned int padding = 0; |
354d0f3c | 585 | #endif |
657e2765 JK |
586 | |
587 | /* make function no-op when possible */ | |
588 | if (NET_IP_ALIGN == 0 || len < sizeof(*hdr)) | |
589 | return 0; | |
590 | ||
354d0f3c | 591 | #if NET_IP_ALIGN != 0 |
657e2765 JK |
592 | /* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */ |
593 | /* TODO: deduplicate common code, define helper function instead? */ | |
594 | ||
595 | if (ieee80211_is_data_qos(hdr->frame_control)) { | |
596 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
597 | ||
598 | padding ^= NET_IP_ALIGN; | |
599 | ||
600 | /* Input might be invalid, avoid accessing memory outside | |
601 | * the buffer. | |
602 | */ | |
603 | if ((unsigned long)qc - (unsigned long)hdr < len && | |
604 | *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT) | |
605 | padding ^= NET_IP_ALIGN; | |
606 | } | |
607 | ||
608 | if (ieee80211_has_a4(hdr->frame_control)) | |
609 | padding ^= NET_IP_ALIGN; | |
610 | ||
611 | return padding; | |
354d0f3c | 612 | #endif |
657e2765 JK |
613 | } |
614 | ||
872de8ff JK |
615 | #define __RADIO_TAP_SIZE_RSV 32 |
616 | ||
2ca20f79 G |
617 | static void _rtl_rx_completed(struct urb *_urb) |
618 | { | |
872de8ff | 619 | struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context; |
2ca20f79 G |
620 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); |
621 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
622 | int err = 0; | |
623 | ||
624 | if (unlikely(IS_USB_STOP(rtlusb))) | |
625 | goto free; | |
626 | ||
627 | if (likely(0 == _urb->status)) { | |
657e2765 | 628 | unsigned int padding; |
872de8ff | 629 | struct sk_buff *skb; |
29bb7013 | 630 | unsigned int qlen; |
872de8ff | 631 | unsigned int size = _urb->actual_length; |
657e2765 | 632 | struct ieee80211_hdr *hdr; |
872de8ff JK |
633 | |
634 | if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) { | |
635 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
636 | "Too short packet from bulk IN! (len: %d)\n", | |
637 | size); | |
638 | goto resubmit; | |
639 | } | |
640 | ||
29bb7013 JK |
641 | qlen = skb_queue_len(&rtlusb->rx_queue); |
642 | if (qlen >= __RX_SKB_MAX_QUEUED) { | |
643 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
644 | "Pending RX skbuff queue full! (qlen: %d)\n", | |
645 | qlen); | |
646 | goto resubmit; | |
647 | } | |
648 | ||
657e2765 JK |
649 | hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE); |
650 | padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE); | |
651 | ||
652 | skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding); | |
872de8ff JK |
653 | if (!skb) { |
654 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
655 | "Can't allocate skb for bulk IN!\n"); | |
656 | goto resubmit; | |
657 | } | |
658 | ||
659 | _rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep); | |
660 | ||
657e2765 JK |
661 | /* Make sure the payload data is 4 byte aligned. */ |
662 | skb_reserve(skb, padding); | |
663 | ||
872de8ff JK |
664 | /* reserve some space for mac80211's radiotap */ |
665 | skb_reserve(skb, __RADIO_TAP_SIZE_RSV); | |
666 | ||
667 | memcpy(skb_put(skb, size), _urb->transfer_buffer, size); | |
668 | ||
29bb7013 JK |
669 | skb_queue_tail(&rtlusb->rx_queue, skb); |
670 | tasklet_schedule(&rtlusb->rx_work_tasklet); | |
872de8ff | 671 | |
2ca20f79 G |
672 | goto resubmit; |
673 | } | |
674 | ||
675 | switch (_urb->status) { | |
676 | /* disconnect */ | |
677 | case -ENOENT: | |
678 | case -ECONNRESET: | |
679 | case -ENODEV: | |
680 | case -ESHUTDOWN: | |
681 | goto free; | |
682 | default: | |
683 | break; | |
684 | } | |
685 | ||
686 | resubmit: | |
2ca20f79 G |
687 | usb_anchor_urb(_urb, &rtlusb->rx_submitted); |
688 | err = usb_submit_urb(_urb, GFP_ATOMIC); | |
689 | if (unlikely(err)) { | |
690 | usb_unanchor_urb(_urb); | |
691 | goto free; | |
692 | } | |
693 | return; | |
694 | ||
695 | free: | |
872de8ff JK |
696 | /* On some architectures, usb_free_coherent must not be called from |
697 | * hardirq context. Queue urb to cleanup list. | |
698 | */ | |
699 | usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs); | |
700 | } | |
701 | ||
702 | #undef __RADIO_TAP_SIZE_RSV | |
703 | ||
704 | static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw) | |
705 | { | |
851639fd | 706 | struct rtl_priv *rtlpriv = rtl_priv(hw); |
872de8ff JK |
707 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); |
708 | struct urb *urb; | |
709 | ||
710 | usb_kill_anchored_urbs(&rtlusb->rx_submitted); | |
711 | ||
29bb7013 | 712 | tasklet_kill(&rtlusb->rx_work_tasklet); |
851639fd TY |
713 | cancel_work_sync(&rtlpriv->works.lps_change_work); |
714 | ||
715 | flush_workqueue(rtlpriv->works.rtl_wq); | |
716 | destroy_workqueue(rtlpriv->works.rtl_wq); | |
717 | ||
29bb7013 JK |
718 | skb_queue_purge(&rtlusb->rx_queue); |
719 | ||
872de8ff JK |
720 | while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) { |
721 | usb_free_coherent(urb->dev, urb->transfer_buffer_length, | |
722 | urb->transfer_buffer, urb->transfer_dma); | |
723 | usb_free_urb(urb); | |
724 | } | |
2ca20f79 G |
725 | } |
726 | ||
727 | static int _rtl_usb_receive(struct ieee80211_hw *hw) | |
728 | { | |
729 | struct urb *urb; | |
2ca20f79 G |
730 | int err; |
731 | int i; | |
732 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
733 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
734 | ||
735 | WARN_ON(0 == rtlusb->rx_urb_num); | |
736 | /* 1600 == 1514 + max WLAN header + rtk info */ | |
737 | WARN_ON(rtlusb->rx_max_size < 1600); | |
738 | ||
739 | for (i = 0; i < rtlusb->rx_urb_num; i++) { | |
740 | err = -ENOMEM; | |
741 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
eb363338 | 742 | if (!urb) |
2ca20f79 | 743 | goto err_out; |
2ca20f79 | 744 | |
872de8ff JK |
745 | err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL); |
746 | if (err < 0) { | |
2ca20f79 | 747 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, |
f30d7507 | 748 | "Failed to prep_rx_urb!!\n"); |
1474a898 | 749 | usb_free_urb(urb); |
2ca20f79 G |
750 | goto err_out; |
751 | } | |
752 | ||
753 | usb_anchor_urb(urb, &rtlusb->rx_submitted); | |
754 | err = usb_submit_urb(urb, GFP_KERNEL); | |
755 | if (err) | |
756 | goto err_out; | |
757 | usb_free_urb(urb); | |
758 | } | |
759 | return 0; | |
760 | ||
761 | err_out: | |
762 | usb_kill_anchored_urbs(&rtlusb->rx_submitted); | |
872de8ff | 763 | _rtl_usb_cleanup_rx(hw); |
2ca20f79 G |
764 | return err; |
765 | } | |
766 | ||
767 | static int rtl_usb_start(struct ieee80211_hw *hw) | |
768 | { | |
769 | int err; | |
770 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
771 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
772 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
773 | ||
774 | err = rtlpriv->cfg->ops->hw_init(hw); | |
b0302aba LF |
775 | if (!err) { |
776 | rtl_init_rx_config(hw); | |
2ca20f79 | 777 | |
b0302aba LF |
778 | /* Enable software */ |
779 | SET_USB_START(rtlusb); | |
780 | /* should after adapter start and interrupt enable. */ | |
781 | set_hal_start(rtlhal); | |
2ca20f79 | 782 | |
b0302aba | 783 | /* Start bulk IN */ |
0c7e9207 | 784 | err = _rtl_usb_receive(hw); |
b0302aba | 785 | } |
2ca20f79 G |
786 | |
787 | return err; | |
788 | } | |
789 | /** | |
790 | * | |
791 | * | |
792 | */ | |
793 | ||
794 | /*======================= tx =========================================*/ | |
795 | static void rtl_usb_cleanup(struct ieee80211_hw *hw) | |
796 | { | |
797 | u32 i; | |
798 | struct sk_buff *_skb; | |
799 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
800 | struct ieee80211_tx_info *txinfo; | |
801 | ||
2ca20f79 | 802 | /* clean up rx stuff. */ |
872de8ff | 803 | _rtl_usb_cleanup_rx(hw); |
2ca20f79 G |
804 | |
805 | /* clean up tx stuff */ | |
806 | for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) { | |
807 | while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) { | |
808 | rtlusb->usb_tx_cleanup(hw, _skb); | |
809 | txinfo = IEEE80211_SKB_CB(_skb); | |
810 | ieee80211_tx_info_clear_status(txinfo); | |
811 | txinfo->flags |= IEEE80211_TX_STAT_ACK; | |
812 | ieee80211_tx_status_irqsafe(hw, _skb); | |
813 | } | |
814 | usb_kill_anchored_urbs(&rtlusb->tx_pending[i]); | |
815 | } | |
816 | usb_kill_anchored_urbs(&rtlusb->tx_submitted); | |
817 | } | |
818 | ||
819 | /** | |
820 | * | |
821 | * We may add some struct into struct rtl_usb later. Do deinit here. | |
822 | * | |
823 | */ | |
824 | static void rtl_usb_deinit(struct ieee80211_hw *hw) | |
825 | { | |
826 | rtl_usb_cleanup(hw); | |
827 | } | |
828 | ||
829 | static void rtl_usb_stop(struct ieee80211_hw *hw) | |
830 | { | |
831 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
832 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
833 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
834 | ||
835 | /* should after adapter start and interrupt enable. */ | |
836 | set_hal_stop(rtlhal); | |
5b8df24e | 837 | cancel_work_sync(&rtlpriv->works.fill_h2c_cmd); |
2ca20f79 G |
838 | /* Enable software */ |
839 | SET_USB_STOP(rtlusb); | |
2ca20f79 G |
840 | rtlpriv->cfg->ops->hw_disable(hw); |
841 | } | |
842 | ||
843 | static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb) | |
844 | { | |
845 | int err; | |
846 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
847 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
848 | ||
849 | usb_anchor_urb(_urb, &rtlusb->tx_submitted); | |
850 | err = usb_submit_urb(_urb, GFP_ATOMIC); | |
851 | if (err < 0) { | |
852 | struct sk_buff *skb; | |
853 | ||
854 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 855 | "Failed to submit urb\n"); |
2ca20f79 G |
856 | usb_unanchor_urb(_urb); |
857 | skb = (struct sk_buff *)_urb->context; | |
858 | kfree_skb(skb); | |
859 | } | |
860 | usb_free_urb(_urb); | |
861 | } | |
862 | ||
863 | static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb, | |
864 | struct sk_buff *skb) | |
865 | { | |
866 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
867 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
868 | struct ieee80211_tx_info *txinfo; | |
869 | ||
870 | rtlusb->usb_tx_post_hdl(hw, urb, skb); | |
871 | skb_pull(skb, RTL_TX_HEADER_SIZE); | |
872 | txinfo = IEEE80211_SKB_CB(skb); | |
873 | ieee80211_tx_info_clear_status(txinfo); | |
874 | txinfo->flags |= IEEE80211_TX_STAT_ACK; | |
875 | ||
876 | if (urb->status) { | |
877 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 878 | "Urb has error status 0x%X\n", urb->status); |
2ca20f79 G |
879 | goto out; |
880 | } | |
881 | /* TODO: statistics */ | |
882 | out: | |
883 | ieee80211_tx_status_irqsafe(hw, skb); | |
884 | return urb->status; | |
885 | } | |
886 | ||
887 | static void _rtl_tx_complete(struct urb *urb) | |
888 | { | |
889 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
890 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
891 | struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0]; | |
892 | struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf); | |
893 | int err; | |
894 | ||
895 | if (unlikely(IS_USB_STOP(rtlusb))) | |
896 | return; | |
897 | err = _usb_tx_post(hw, urb, skb); | |
898 | if (err) { | |
899 | /* Ignore error and keep issuiing other urbs */ | |
900 | return; | |
901 | } | |
902 | } | |
903 | ||
904 | static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw, | |
905 | struct sk_buff *skb, u32 ep_num) | |
906 | { | |
2ca20f79 G |
907 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); |
908 | struct urb *_urb; | |
909 | ||
910 | WARN_ON(NULL == skb); | |
911 | _urb = usb_alloc_urb(0, GFP_ATOMIC); | |
912 | if (!_urb) { | |
2ca20f79 G |
913 | kfree_skb(skb); |
914 | return NULL; | |
915 | } | |
916 | _rtl_install_trx_info(rtlusb, skb, ep_num); | |
917 | usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev, | |
918 | ep_num), skb->data, skb->len, _rtl_tx_complete, skb); | |
919 | _urb->transfer_flags |= URB_ZERO_PACKET; | |
920 | return _urb; | |
921 | } | |
922 | ||
923 | static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb, | |
924 | enum rtl_txq qnum) | |
925 | { | |
926 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
927 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
928 | u32 ep_num; | |
929 | struct urb *_urb = NULL; | |
930 | struct sk_buff *_skb = NULL; | |
2ca20f79 G |
931 | |
932 | WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl); | |
933 | if (unlikely(IS_USB_STOP(rtlusb))) { | |
934 | RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG, | |
f30d7507 | 935 | "USB device is stopping...\n"); |
2ca20f79 G |
936 | kfree_skb(skb); |
937 | return; | |
938 | } | |
939 | ep_num = rtlusb->ep_map.ep_mapping[qnum]; | |
2ca20f79 G |
940 | _skb = skb; |
941 | _urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num); | |
942 | if (unlikely(!_urb)) { | |
943 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | |
f30d7507 | 944 | "Can't allocate urb. Drop skb!\n"); |
36ef0b47 | 945 | kfree_skb(skb); |
2ca20f79 G |
946 | return; |
947 | } | |
2ca20f79 G |
948 | _rtl_submit_tx_urb(hw, _urb); |
949 | } | |
950 | ||
36323f81 TH |
951 | static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, |
952 | struct ieee80211_sta *sta, | |
953 | struct sk_buff *skb, | |
954 | u16 hw_queue) | |
2ca20f79 G |
955 | { |
956 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
957 | struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); | |
958 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
959 | struct rtl_tx_desc *pdesc = NULL; | |
d93cdee9 | 960 | struct rtl_tcb_desc tcb_desc; |
2ca20f79 | 961 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); |
17c9ac62 | 962 | __le16 fc = hdr->frame_control; |
2ca20f79 G |
963 | u8 *pda_addr = hdr->addr1; |
964 | /* ssn */ | |
965 | u8 *qc = NULL; | |
966 | u8 tid = 0; | |
967 | u16 seq_number = 0; | |
968 | ||
831d8547 | 969 | memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); |
d93cdee9 | 970 | if (ieee80211_is_auth(fc)) { |
f30d7507 | 971 | RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); |
d93cdee9 C |
972 | rtl_ips_nic_on(hw); |
973 | } | |
974 | ||
975 | if (rtlpriv->psc.sw_ps_enabled) { | |
976 | if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) && | |
977 | !ieee80211_has_pm(fc)) | |
978 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
979 | } | |
980 | ||
2ca20f79 G |
981 | rtl_action_proc(hw, skb, true); |
982 | if (is_multicast_ether_addr(pda_addr)) | |
983 | rtlpriv->stats.txbytesmulticast += skb->len; | |
984 | else if (is_broadcast_ether_addr(pda_addr)) | |
985 | rtlpriv->stats.txbytesbroadcast += skb->len; | |
986 | else | |
987 | rtlpriv->stats.txbytesunicast += skb->len; | |
988 | if (ieee80211_is_data_qos(fc)) { | |
989 | qc = ieee80211_get_qos_ctl(hdr); | |
990 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; | |
991 | seq_number = (le16_to_cpu(hdr->seq_ctrl) & | |
992 | IEEE80211_SCTL_SEQ) >> 4; | |
993 | seq_number += 1; | |
994 | seq_number <<= 4; | |
995 | } | |
f3355dd9 | 996 | rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, NULL, info, sta, skb, |
d93cdee9 | 997 | hw_queue, &tcb_desc); |
2ca20f79 G |
998 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
999 | if (qc) | |
1000 | mac->tids[tid].seq_number = seq_number; | |
1001 | } | |
1002 | if (ieee80211_is_data(fc)) | |
1003 | rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX); | |
1004 | } | |
1005 | ||
36323f81 TH |
1006 | static int rtl_usb_tx(struct ieee80211_hw *hw, |
1007 | struct ieee80211_sta *sta, | |
1008 | struct sk_buff *skb, | |
0baa0fd7 | 1009 | struct rtl_tcb_desc *dummy) |
2ca20f79 G |
1010 | { |
1011 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
1012 | struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | |
1013 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); | |
17c9ac62 | 1014 | __le16 fc = hdr->frame_control; |
2ca20f79 G |
1015 | u16 hw_queue; |
1016 | ||
1017 | if (unlikely(is_hal_stop(rtlhal))) | |
1018 | goto err_free; | |
1019 | hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb)); | |
36323f81 | 1020 | _rtl_usb_tx_preprocess(hw, sta, skb, hw_queue); |
2ca20f79 G |
1021 | _rtl_usb_transmit(hw, skb, hw_queue); |
1022 | return NETDEV_TX_OK; | |
1023 | ||
1024 | err_free: | |
1025 | dev_kfree_skb_any(skb); | |
1026 | return NETDEV_TX_OK; | |
1027 | } | |
1028 | ||
1029 | static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw, | |
36323f81 | 1030 | struct ieee80211_sta *sta, |
2ca20f79 G |
1031 | struct sk_buff *skb) |
1032 | { | |
1033 | return false; | |
1034 | } | |
1035 | ||
5b8df24e LF |
1036 | static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work) |
1037 | { | |
1038 | struct rtl_works *rtlworks = | |
1039 | container_of(work, struct rtl_works, fill_h2c_cmd); | |
1040 | struct ieee80211_hw *hw = rtlworks->hw; | |
1041 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
1042 | ||
1043 | rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask); | |
1044 | } | |
1045 | ||
1bfcfdcc | 1046 | static const struct rtl_intf_ops rtl_usb_ops = { |
2ca20f79 G |
1047 | .adapter_start = rtl_usb_start, |
1048 | .adapter_stop = rtl_usb_stop, | |
1049 | .adapter_tx = rtl_usb_tx, | |
1050 | .waitq_insert = rtl_usb_tx_chk_waitq_insert, | |
1051 | }; | |
1052 | ||
9e2ff36b | 1053 | int rtl_usb_probe(struct usb_interface *intf, |
957f4aca LF |
1054 | const struct usb_device_id *id, |
1055 | struct rtl_hal_cfg *rtl_hal_cfg) | |
2ca20f79 G |
1056 | { |
1057 | int err; | |
1058 | struct ieee80211_hw *hw = NULL; | |
1059 | struct rtl_priv *rtlpriv = NULL; | |
1060 | struct usb_device *udev; | |
1061 | struct rtl_usb_priv *usb_priv; | |
1062 | ||
1063 | hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) + | |
1064 | sizeof(struct rtl_usb_priv), &rtl_ops); | |
1065 | if (!hw) { | |
9d833ed7 | 1066 | RT_ASSERT(false, "ieee80211 alloc failed\n"); |
2ca20f79 G |
1067 | return -ENOMEM; |
1068 | } | |
1069 | rtlpriv = hw->priv; | |
a7959c13 LF |
1070 | rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32), |
1071 | GFP_KERNEL); | |
1072 | if (!rtlpriv->usb_data) | |
1073 | return -ENOMEM; | |
3ce4d85b LF |
1074 | |
1075 | /* this spin lock must be initialized early */ | |
1076 | spin_lock_init(&rtlpriv->locks.usb_lock); | |
5b8df24e LF |
1077 | INIT_WORK(&rtlpriv->works.fill_h2c_cmd, |
1078 | rtl_fill_h2c_cmd_work_callback); | |
bcfb8794 LF |
1079 | INIT_WORK(&rtlpriv->works.lps_change_work, |
1080 | rtl_lps_change_work_callback); | |
3ce4d85b | 1081 | |
a7959c13 | 1082 | rtlpriv->usb_data_index = 0; |
b0302aba | 1083 | init_completion(&rtlpriv->firmware_loading_complete); |
2ca20f79 G |
1084 | SET_IEEE80211_DEV(hw, &intf->dev); |
1085 | udev = interface_to_usbdev(intf); | |
1086 | usb_get_dev(udev); | |
1087 | usb_priv = rtl_usbpriv(hw); | |
1088 | memset(usb_priv, 0, sizeof(*usb_priv)); | |
1089 | usb_priv->dev.intf = intf; | |
1090 | usb_priv->dev.udev = udev; | |
1091 | usb_set_intfdata(intf, hw); | |
1092 | /* init cfg & intf_ops */ | |
1093 | rtlpriv->rtlhal.interface = INTF_USB; | |
957f4aca | 1094 | rtlpriv->cfg = rtl_hal_cfg; |
2ca20f79 G |
1095 | rtlpriv->intf_ops = &rtl_usb_ops; |
1096 | rtl_dbgp_flag_init(hw); | |
1097 | /* Init IO handler */ | |
1098 | _rtl_usb_io_handler_init(&udev->dev, hw); | |
1099 | rtlpriv->cfg->ops->read_chip_version(hw); | |
1100 | /*like read eeprom and so on */ | |
1101 | rtlpriv->cfg->ops->read_eeprom_info(hw); | |
2ca20f79 | 1102 | err = _rtl_usb_init(hw); |
48de1a17 LF |
1103 | if (err) |
1104 | goto error_out; | |
8f526ab4 | 1105 | rtl_usb_init_sw(hw); |
2ca20f79 G |
1106 | /* Init mac80211 sw */ |
1107 | err = rtl_init_core(hw); | |
1108 | if (err) { | |
1109 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | |
f30d7507 | 1110 | "Can't allocate sw for mac80211\n"); |
2ca20f79 G |
1111 | goto error_out; |
1112 | } | |
574e02ab LF |
1113 | if (rtlpriv->cfg->ops->init_sw_vars(hw)) { |
1114 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n"); | |
1115 | goto error_out; | |
1116 | } | |
1117 | rtlpriv->cfg->ops->init_sw_leds(hw); | |
2ca20f79 | 1118 | |
cefe3dfd KW |
1119 | err = ieee80211_register_hw(hw); |
1120 | if (err) { | |
1121 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | |
1122 | "Can't register mac80211 hw.\n"); | |
1123 | err = -ENODEV; | |
1124 | goto error_out; | |
1125 | } | |
1126 | rtlpriv->mac80211.mac80211_registered = 1; | |
1127 | ||
1128 | set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); | |
2ca20f79 | 1129 | return 0; |
cefe3dfd | 1130 | |
2ca20f79 G |
1131 | error_out: |
1132 | rtl_deinit_core(hw); | |
1133 | _rtl_usb_io_handler_release(hw); | |
2ca20f79 | 1134 | usb_put_dev(udev); |
b0302aba | 1135 | complete(&rtlpriv->firmware_loading_complete); |
2ca20f79 G |
1136 | return -ENODEV; |
1137 | } | |
1138 | EXPORT_SYMBOL(rtl_usb_probe); | |
1139 | ||
1140 | void rtl_usb_disconnect(struct usb_interface *intf) | |
1141 | { | |
1142 | struct ieee80211_hw *hw = usb_get_intfdata(intf); | |
1143 | struct rtl_priv *rtlpriv = rtl_priv(hw); | |
1144 | struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); | |
1145 | struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); | |
1146 | ||
1147 | if (unlikely(!rtlpriv)) | |
1148 | return; | |
b0302aba LF |
1149 | /* just in case driver is removed before firmware callback */ |
1150 | wait_for_completion(&rtlpriv->firmware_loading_complete); | |
851639fd | 1151 | clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); |
2ca20f79 G |
1152 | /*ieee80211_unregister_hw will call ops_stop */ |
1153 | if (rtlmac->mac80211_registered == 1) { | |
1154 | ieee80211_unregister_hw(hw); | |
1155 | rtlmac->mac80211_registered = 0; | |
1156 | } else { | |
1157 | rtl_deinit_deferred_work(hw); | |
1158 | rtlpriv->intf_ops->adapter_stop(hw); | |
1159 | } | |
1160 | /*deinit rfkill */ | |
1161 | /* rtl_deinit_rfkill(hw); */ | |
1162 | rtl_usb_deinit(hw); | |
1163 | rtl_deinit_core(hw); | |
a7959c13 | 1164 | kfree(rtlpriv->usb_data); |
2ca20f79 G |
1165 | rtlpriv->cfg->ops->deinit_sw_leds(hw); |
1166 | rtlpriv->cfg->ops->deinit_sw_vars(hw); | |
1167 | _rtl_usb_io_handler_release(hw); | |
1168 | usb_put_dev(rtlusb->udev); | |
1169 | usb_set_intfdata(intf, NULL); | |
1170 | ieee80211_free_hw(hw); | |
1171 | } | |
1172 | EXPORT_SYMBOL(rtl_usb_disconnect); | |
1173 | ||
1174 | int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message) | |
1175 | { | |
1176 | return 0; | |
1177 | } | |
1178 | EXPORT_SYMBOL(rtl_usb_suspend); | |
1179 | ||
1180 | int rtl_usb_resume(struct usb_interface *pusb_intf) | |
1181 | { | |
1182 | return 0; | |
1183 | } | |
1184 | EXPORT_SYMBOL(rtl_usb_resume); |