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1/******************************************************************************
2 * os_intfs.c
3 *
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
22 *
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>.
25 * Larry Finger <Larry.Finger@lwfinger.net>
26 *
27 ******************************************************************************/
28
29#define _OS_INTFS_C_
30
31#include <linux/module.h>
2865d42c 32#include <linux/kthread.h>
8c213fa5 33#include <linux/firmware.h>
2865d42c
LF
34#include "osdep_service.h"
35#include "drv_types.h"
36#include "xmit_osdep.h"
37#include "recv_osdep.h"
38#include "rtl871x_ioctl.h"
39#include "usb_osintf.h"
40
41MODULE_LICENSE("GPL");
42MODULE_DESCRIPTION("rtl871x wireless lan driver");
43MODULE_AUTHOR("Larry Finger");
44
45static char ifname[IFNAMSIZ] = "wlan%d";
46
47/* module param defaults */
48static int chip_version = RTL8712_2ndCUT;
49static int rfintfs = HWPI;
50static int lbkmode = RTL8712_AIR_TRX;
51static int hci = RTL8712_USB;
52static int ampdu_enable = 1;/*for enable tx_ampdu*/
53
be10ac2b 54/* The video_mode variable is for video mode.*/
2865d42c
LF
55/* It may be specify when inserting module with video_mode=1 parameter.*/
56static int video_mode = 1; /* enable video mode*/
57
58/*Ndis802_11Infrastructure; infra, ad-hoc, auto*/
59static int network_mode = Ndis802_11IBSS;
60static int channel = 1;/*ad-hoc support requirement*/
61static int wireless_mode = WIRELESS_11BG;
62static int vrtl_carrier_sense = AUTO_VCS;
63static int vcs_type = RTS_CTS;
64static int frag_thresh = 2346;
65static int preamble = PREAMBLE_LONG;/*long, short, auto*/
66static int scan_mode = 1;/*active, passive*/
67static int adhoc_tx_pwr = 1;
68static int soft_ap;
69static int smart_ps = 1;
70static int power_mgnt = PS_MODE_ACTIVE;
71static int radio_enable = 1;
72static int long_retry_lmt = 7;
73static int short_retry_lmt = 7;
74static int busy_thresh = 40;
75static int ack_policy = NORMAL_ACK;
76static int mp_mode;
77static int software_encrypt;
78static int software_decrypt;
79
80static int wmm_enable;/* default is set to disable the wmm.*/
81static int uapsd_enable;
82static int uapsd_max_sp = NO_LIMIT;
83static int uapsd_acbk_en;
84static int uapsd_acbe_en;
85static int uapsd_acvi_en;
86static int uapsd_acvo_en;
87
88static int ht_enable = 1;
89static int cbw40_enable = 1;
90static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/
91static int low_power;
92/* mac address to use instead of the one stored in Efuse */
93char *r8712_initmac;
94static char *initmac;
d19b8647
LF
95/* if wifi_test = 1, driver will disable the turbo mode and pass it to
96 * firmware private.
97 */
e1656648 98static int wifi_test;
2865d42c
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99
100module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
d19b8647 101module_param(wifi_test, int, 0644);
2865d42c
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102module_param(initmac, charp, 0644);
103module_param(video_mode, int, 0644);
104module_param(chip_version, int, 0644);
105module_param(rfintfs, int, 0644);
106module_param(lbkmode, int, 0644);
107module_param(hci, int, 0644);
108module_param(network_mode, int, 0644);
109module_param(channel, int, 0644);
110module_param(mp_mode, int, 0644);
111module_param(wmm_enable, int, 0644);
112module_param(vrtl_carrier_sense, int, 0644);
113module_param(vcs_type, int, 0644);
114module_param(busy_thresh, int, 0644);
115module_param(ht_enable, int, 0644);
116module_param(cbw40_enable, int, 0644);
117module_param(ampdu_enable, int, 0644);
118module_param(rf_config, int, 0644);
119module_param(power_mgnt, int, 0644);
120module_param(low_power, int, 0644);
121
122MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
123MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE");
124
125static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev);
126static int netdev_open(struct net_device *pnetdev);
127static int netdev_close(struct net_device *pnetdev);
128
129static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev)
130{
131 uint status = _SUCCESS;
132 struct registry_priv *registry_par = &padapter->registrypriv;
133
134 registry_par->chip_version = (u8)chip_version;
135 registry_par->rfintfs = (u8)rfintfs;
136 registry_par->lbkmode = (u8)lbkmode;
137 registry_par->hci = (u8)hci;
138 registry_par->network_mode = (u8)network_mode;
139 memcpy(registry_par->ssid.Ssid, "ANY", 3);
140 registry_par->ssid.SsidLength = 3;
141 registry_par->channel = (u8)channel;
142 registry_par->wireless_mode = (u8)wireless_mode;
77e73e8c 143 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense;
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LF
144 registry_par->vcs_type = (u8)vcs_type;
145 registry_par->frag_thresh = (u16)frag_thresh;
146 registry_par->preamble = (u8)preamble;
147 registry_par->scan_mode = (u8)scan_mode;
148 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr;
149 registry_par->soft_ap = (u8)soft_ap;
150 registry_par->smart_ps = (u8)smart_ps;
151 registry_par->power_mgnt = (u8)power_mgnt;
152 registry_par->radio_enable = (u8)radio_enable;
153 registry_par->long_retry_lmt = (u8)long_retry_lmt;
154 registry_par->short_retry_lmt = (u8)short_retry_lmt;
155 registry_par->busy_thresh = (u16)busy_thresh;
156 registry_par->ack_policy = (u8)ack_policy;
157 registry_par->mp_mode = (u8)mp_mode;
158 registry_par->software_encrypt = (u8)software_encrypt;
159 registry_par->software_decrypt = (u8)software_decrypt;
160 /*UAPSD*/
161 registry_par->wmm_enable = (u8)wmm_enable;
162 registry_par->uapsd_enable = (u8)uapsd_enable;
163 registry_par->uapsd_max_sp = (u8)uapsd_max_sp;
164 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en;
165 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en;
166 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en;
167 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en;
168 registry_par->ht_enable = (u8)ht_enable;
169 registry_par->cbw40_enable = (u8)cbw40_enable;
170 registry_par->ampdu_enable = (u8)ampdu_enable;
171 registry_par->rf_config = (u8)rf_config;
172 registry_par->low_power = (u8)low_power;
d19b8647 173 registry_par->wifi_test = (u8) wifi_test;
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174 r8712_initmac = initmac;
175 return status;
176}
177
178static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
179{
8f47c28b 180 struct _adapter *padapter = netdev_priv(pnetdev);
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181 struct sockaddr *addr = p;
182
183 if (padapter->bup == false)
184 memcpy(pnetdev->dev_addr, addr->sa_data, ETH_ALEN);
185 return 0;
186}
187
188static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev)
189{
8f47c28b 190 struct _adapter *padapter = netdev_priv(pnetdev);
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191 struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
192 struct recv_priv *precvpriv = &(padapter->recvpriv);
193
194 padapter->stats.tx_packets = pxmitpriv->tx_pkts;
195 padapter->stats.rx_packets = precvpriv->rx_pkts;
196 padapter->stats.tx_dropped = pxmitpriv->tx_drop;
197 padapter->stats.rx_dropped = precvpriv->rx_drop;
198 padapter->stats.tx_bytes = pxmitpriv->tx_bytes;
199 padapter->stats.rx_bytes = precvpriv->rx_bytes;
200 return &padapter->stats;
201}
202
203static const struct net_device_ops rtl8712_netdev_ops = {
204 .ndo_open = netdev_open,
205 .ndo_stop = netdev_close,
206 .ndo_start_xmit = r8712_xmit_entry,
207 .ndo_set_mac_address = r871x_net_set_mac_address,
208 .ndo_get_stats = r871x_net_get_stats,
209 .ndo_do_ioctl = r871x_ioctl,
210};
211
212struct net_device *r8712_init_netdev(void)
213{
214 struct _adapter *padapter;
215 struct net_device *pnetdev;
216
217 pnetdev = alloc_etherdev(sizeof(struct _adapter));
218 if (!pnetdev)
219 return NULL;
220 if (dev_alloc_name(pnetdev, ifname) < 0) {
221 strcpy(ifname, "wlan%d");
222 dev_alloc_name(pnetdev, ifname);
223 }
8f47c28b 224 padapter = netdev_priv(pnetdev);
2865d42c 225 padapter->pnetdev = pnetdev;
87a573ad 226 pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n");
2865d42c
LF
227 pnetdev->netdev_ops = &rtl8712_netdev_ops;
228 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */
229 pnetdev->wireless_handlers = (struct iw_handler_def *)
230 &r871x_handlers_def;
231 /*step 2.*/
232 loadparam(padapter, pnetdev);
233 netif_carrier_off(pnetdev);
234 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/
235 return pnetdev;
236}
237
238static u32 start_drv_threads(struct _adapter *padapter)
239{
f170168b 240 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter, "%s",
2865d42c 241 padapter->pnetdev->name);
b16aad35 242 if (IS_ERR(padapter->cmdThread))
2865d42c
LF
243 return _FAIL;
244 return _SUCCESS;
245}
246
247void r8712_stop_drv_threads(struct _adapter *padapter)
248{
be10ac2b 249 /*Below is to terminate r8712_cmd_thread & event_thread...*/
2865d42c
LF
250 up(&padapter->cmdpriv.cmd_queue_sema);
251 if (padapter->cmdThread)
252 _down_sema(&padapter->cmdpriv.terminate_cmdthread_sema);
253 padapter->cmdpriv.cmd_seq = 1;
254}
255
256static void start_drv_timers(struct _adapter *padapter)
257{
c703c750
VT
258 mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
259 jiffies + msecs_to_jiffies(5000));
260 mod_timer(&padapter->mlmepriv.wdg_timer,
261 jiffies + msecs_to_jiffies(2000));
2865d42c
LF
262}
263
6c19d86b 264void r8712_stop_drv_timers(struct _adapter *padapter)
2865d42c 265{
6501c8e7
VT
266 del_timer_sync(&padapter->mlmepriv.assoc_timer);
267 del_timer_sync(&padapter->securitypriv.tkip_timer);
268 del_timer_sync(&padapter->mlmepriv.scan_to_timer);
269 del_timer_sync(&padapter->mlmepriv.dhcp_timer);
270 del_timer_sync(&padapter->mlmepriv.wdg_timer);
271 del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
2865d42c
LF
272}
273
274static u8 init_default_value(struct _adapter *padapter)
275{
276 u8 ret = _SUCCESS;
277 struct registry_priv *pregistrypriv = &padapter->registrypriv;
278 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
279 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
280 struct security_priv *psecuritypriv = &padapter->securitypriv;
281
282 /*xmit_priv*/
283 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense;
284 pxmitpriv->vcs = pregistrypriv->vcs_type;
285 pxmitpriv->vcs_type = pregistrypriv->vcs_type;
286 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh;
287 pxmitpriv->frag_len = pregistrypriv->frag_thresh;
ee5b1aad
AB
288 /* mlme_priv */
289 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
290 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
2865d42c
LF
291 /*ht_priv*/
292 {
293 int i;
294 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
295
296 phtpriv->ampdu_enable = false;/*set to disabled*/
297 for (i = 0; i < 16; i++)
298 phtpriv->baddbareq_issued[i] = false;
299 }
300 /*security_priv*/
301 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt;
302 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt;
303 psecuritypriv->binstallGrpkey = _FAIL;
304 /*pwrctrl_priv*/
305 /*registry_priv*/
306 r8712_init_registrypriv_dev_network(padapter);
307 r8712_update_registrypriv_dev_network(padapter);
308 /*misc.*/
309 return ret;
310}
311
312u8 r8712_init_drv_sw(struct _adapter *padapter)
313{
314 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL)
315 return _FAIL;
316 padapter->cmdpriv.padapter = padapter;
317 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL)
318 return _FAIL;
319 if (r8712_init_mlme_priv(padapter) == _FAIL)
320 return _FAIL;
321 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
322 _r8712_init_recv_priv(&padapter->recvpriv, padapter);
323 memset((unsigned char *)&padapter->securitypriv, 0,
324 sizeof(struct security_priv));
e922df7d
VT
325 setup_timer(&padapter->securitypriv.tkip_timer,
326 r8712_use_tkipkey_handler, (unsigned long)padapter);
2865d42c
LF
327 _r8712_init_sta_priv(&padapter->stapriv);
328 padapter->stapriv.padapter = padapter;
329 r8712_init_bcmc_stainfo(padapter);
330 r8712_init_pwrctrl_priv(padapter);
2865d42c
LF
331 mp871xinit(padapter);
332 if (init_default_value(padapter) != _SUCCESS)
333 return _FAIL;
334 r8712_InitSwLeds(padapter);
335 return _SUCCESS;
336}
337
338u8 r8712_free_drv_sw(struct _adapter *padapter)
339{
340 struct net_device *pnetdev = (struct net_device *)padapter->pnetdev;
341
342 r8712_free_cmd_priv(&padapter->cmdpriv);
343 r8712_free_evt_priv(&padapter->evtpriv);
344 r8712_DeInitSwLeds(padapter);
345 r8712_free_mlme_priv(&padapter->mlmepriv);
346 r8712_free_io_queue(padapter);
347 _free_xmit_priv(&padapter->xmitpriv);
22649bb2 348 _r8712_free_sta_priv(&padapter->stapriv);
2865d42c
LF
349 _r8712_free_recv_priv(&padapter->recvpriv);
350 mp871xdeinit(padapter);
351 if (pnetdev)
7bcd9ce6 352 free_netdev(pnetdev);
2865d42c
LF
353 return _SUCCESS;
354}
355
356
357static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
358{
359 /* bit 8:
360 * 1 -> enable video mode to 96B AP
361 * 0 -> disable video mode to 96B AP
362 * bit 9:
363 * 1 -> enable 40MHz mode
364 * 0 -> disable 40MHz mode
365 * bit 10:
366 * 1 -> enable STBC
367 * 0 -> disable STBC
368 */
369 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/
370
371 if (cbw40_value) {
372 /* if the driver supports the 40M bandwidth,
373 * we can enable the bit 9.*/
374 intcmd |= 0x200;
375 }
376 r8712_fw_cmd(padapter, intcmd);
377}
378
a5ee6529
AB
379/**
380 *
381 * This function intends to handle the activation of an interface
382 * i.e. when it is brought Up/Active from a Down state.
383 *
384 */
2865d42c
LF
385static int netdev_open(struct net_device *pnetdev)
386{
8f47c28b 387 struct _adapter *padapter = netdev_priv(pnetdev);
2865d42c 388
8c213fa5 389 mutex_lock(&padapter->mutex_start);
2865d42c
LF
390 if (padapter->bup == false) {
391 padapter->bDriverStopped = false;
392 padapter->bSurpriseRemoved = false;
393 padapter->bup = true;
394 if (rtl871x_hal_init(padapter) != _SUCCESS)
395 goto netdev_open_error;
396 if (r8712_initmac == NULL)
397 /* Use the mac address stored in the Efuse */
398 memcpy(pnetdev->dev_addr,
399 padapter->eeprompriv.mac_addr, ETH_ALEN);
400 else {
401 /* We have to inform f/w to use user-supplied MAC
402 * address.
403 */
404 msleep(200);
405 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr);
406 /*
407 * The "myid" function will get the wifi mac address
408 * from eeprompriv structure instead of netdev
409 * structure. So, we have to overwrite the mac_addr
410 * stored in the eeprompriv structure. In this case,
411 * the real mac address won't be used anymore. So that,
412 * the eeprompriv.mac_addr should store the mac which
413 * users specify.
414 */
415 memcpy(padapter->eeprompriv.mac_addr,
416 pnetdev->dev_addr, ETH_ALEN);
417 }
418 if (start_drv_threads(padapter) != _SUCCESS)
419 goto netdev_open_error;
420 if (padapter->dvobjpriv.inirp_init == NULL)
421 goto netdev_open_error;
422 else
423 padapter->dvobjpriv.inirp_init(padapter);
424 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
425 padapter->registrypriv.smart_ps);
426 }
427 if (!netif_queue_stopped(pnetdev))
428 netif_start_queue(pnetdev);
429 else
430 netif_wake_queue(pnetdev);
431
432 if (video_mode)
433 enable_video_mode(padapter, cbw40_enable);
434 /* start driver mlme relation timer */
435 start_drv_timers(padapter);
436 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
8c213fa5 437 mutex_unlock(&padapter->mutex_start);
2865d42c
LF
438 return 0;
439netdev_open_error:
440 padapter->bup = false;
441 netif_carrier_off(pnetdev);
442 netif_stop_queue(pnetdev);
8c213fa5 443 mutex_unlock(&padapter->mutex_start);
2865d42c
LF
444 return -1;
445}
446
a5ee6529
AB
447/**
448 *
449 * This function intends to handle the shutdown of an interface
450 * i.e. when it is brought Down from an Up/Active state.
451 *
452 */
2865d42c
LF
453static int netdev_close(struct net_device *pnetdev)
454{
8f47c28b 455 struct _adapter *padapter = netdev_priv(pnetdev);
2865d42c
LF
456
457 /* Close LED*/
458 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF);
459 msleep(200);
460
461 /*s1.*/
462 if (pnetdev) {
463 if (!netif_queue_stopped(pnetdev))
464 netif_stop_queue(pnetdev);
465 }
466 /*s2.*/
467 /*s2-1. issue disassoc_cmd to fw*/
468 r8712_disassoc_cmd(padapter);
469 /*s2-2. indicate disconnect to os*/
470 r8712_ind_disconnect(padapter);
471 /*s2-3.*/
472 r8712_free_assoc_resources(padapter);
473 /*s2-4.*/
474 r8712_free_network_queue(padapter);
2865d42c
LF
475 return 0;
476}
477
478#include "mlme_osdep.h"