/drivers/staging/rtl8712/os_intfs.c
C | 464 lines | 345 code | 41 blank | 78 comment | 32 complexity | a17302cd6494522751a9b5b25bf52c4c MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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>
32#include <linux/init.h>
33#include <linux/kthread.h>
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
54/* The video_mode variable is for vedio mode.*/
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;
95/* if wifi_test = 1, driver will disable the turbo mode and pass it to
96 * firmware private.
97 */
98static int wifi_test = 0;
99
100module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
101module_param(wifi_test, int, 0644);
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;
143 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense ;
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;
173 registry_par->wifi_test = (u8) wifi_test;
174 r8712_initmac = initmac;
175 return status;
176}
177
178static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
179{
180 struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
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{
190 struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
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 }
224 padapter = (struct _adapter *) _netdev_priv(pnetdev);
225 padapter->pnetdev = pnetdev;
226 printk(KERN_INFO "r8712u: register rtl8712_netdev_ops to"
227 " netdev_ops\n");
228 pnetdev->netdev_ops = &rtl8712_netdev_ops;
229 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */
230 pnetdev->wireless_handlers = (struct iw_handler_def *)
231 &r871x_handlers_def;
232 /*step 2.*/
233 loadparam(padapter, pnetdev);
234 netif_carrier_off(pnetdev);
235 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/
236 return pnetdev;
237}
238
239static u32 start_drv_threads(struct _adapter *padapter)
240{
241 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter,
242 padapter->pnetdev->name);
243 if (IS_ERR(padapter->cmdThread) < 0)
244 return _FAIL;
245 return _SUCCESS;
246}
247
248void r8712_stop_drv_threads(struct _adapter *padapter)
249{
250 /*Below is to termindate r8712_cmd_thread & event_thread...*/
251 up(&padapter->cmdpriv.cmd_queue_sema);
252 if (padapter->cmdThread)
253 _down_sema(&padapter->cmdpriv.terminate_cmdthread_sema);
254 padapter->cmdpriv.cmd_seq = 1;
255}
256
257static void start_drv_timers(struct _adapter *padapter)
258{
259 _set_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
260 5000);
261 _set_timer(&padapter->mlmepriv.wdg_timer, 2000);
262}
263
264static void stop_drv_timers(struct _adapter *padapter)
265{
266 _cancel_timer_ex(&padapter->mlmepriv.assoc_timer);
267 _cancel_timer_ex(&padapter->mlmepriv.sitesurveyctrl.
268 sitesurvey_ctrl_timer);
269 _cancel_timer_ex(&padapter->securitypriv.tkip_timer);
270 _cancel_timer_ex(&padapter->mlmepriv.scan_to_timer);
271 _cancel_timer_ex(&padapter->mlmepriv.dhcp_timer);
272 _cancel_timer_ex(&padapter->mlmepriv.wdg_timer);
273}
274
275static u8 init_default_value(struct _adapter *padapter)
276{
277 u8 ret = _SUCCESS;
278 struct registry_priv *pregistrypriv = &padapter->registrypriv;
279 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
280 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
281 struct security_priv *psecuritypriv = &padapter->securitypriv;
282
283 /*xmit_priv*/
284 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense;
285 pxmitpriv->vcs = pregistrypriv->vcs_type;
286 pxmitpriv->vcs_type = pregistrypriv->vcs_type;
287 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh;
288 pxmitpriv->frag_len = pregistrypriv->frag_thresh;
289 /*ht_priv*/
290 {
291 int i;
292 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
293
294 phtpriv->ampdu_enable = false;/*set to disabled*/
295 for (i = 0; i < 16; i++)
296 phtpriv->baddbareq_issued[i] = false;
297 }
298 /*security_priv*/
299 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt;
300 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt;
301 psecuritypriv->binstallGrpkey = _FAIL;
302 /*pwrctrl_priv*/
303 /*registry_priv*/
304 r8712_init_registrypriv_dev_network(padapter);
305 r8712_update_registrypriv_dev_network(padapter);
306 /*misc.*/
307 return ret;
308}
309
310u8 r8712_init_drv_sw(struct _adapter *padapter)
311{
312 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL)
313 return _FAIL;
314 padapter->cmdpriv.padapter = padapter;
315 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL)
316 return _FAIL;
317 if (r8712_init_mlme_priv(padapter) == _FAIL)
318 return _FAIL;
319 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
320 _r8712_init_recv_priv(&padapter->recvpriv, padapter);
321 memset((unsigned char *)&padapter->securitypriv, 0,
322 sizeof(struct security_priv));
323 _init_timer(&(padapter->securitypriv.tkip_timer), padapter->pnetdev,
324 r8712_use_tkipkey_handler, padapter);
325 _r8712_init_sta_priv(&padapter->stapriv);
326 padapter->stapriv.padapter = padapter;
327 r8712_init_bcmc_stainfo(padapter);
328 r8712_init_pwrctrl_priv(padapter);
329 sema_init(&(padapter->pwrctrlpriv.pnp_pwr_mgnt_sema), 0);
330 mp871xinit(padapter);
331 if (init_default_value(padapter) != _SUCCESS)
332 return _FAIL;
333 r8712_InitSwLeds(padapter);
334 return _SUCCESS;
335}
336
337u8 r8712_free_drv_sw(struct _adapter *padapter)
338{
339 struct net_device *pnetdev = (struct net_device *)padapter->pnetdev;
340
341 r8712_free_cmd_priv(&padapter->cmdpriv);
342 r8712_free_evt_priv(&padapter->evtpriv);
343 r8712_DeInitSwLeds(padapter);
344 r8712_free_mlme_priv(&padapter->mlmepriv);
345 r8712_free_io_queue(padapter);
346 _free_xmit_priv(&padapter->xmitpriv);
347 _r8712_free_sta_priv(&padapter->stapriv);
348 _r8712_free_recv_priv(&padapter->recvpriv);
349 mp871xdeinit(padapter);
350 if (pnetdev)
351 os_free_netdev(pnetdev);
352 return _SUCCESS;
353}
354
355
356static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
357{
358 /* bit 8:
359 * 1 -> enable video mode to 96B AP
360 * 0 -> disable video mode to 96B AP
361 * bit 9:
362 * 1 -> enable 40MHz mode
363 * 0 -> disable 40MHz mode
364 * bit 10:
365 * 1 -> enable STBC
366 * 0 -> disable STBC
367 */
368 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/
369
370 if (cbw40_value) {
371 /* if the driver supports the 40M bandwidth,
372 * we can enable the bit 9.*/
373 intcmd |= 0x200;
374 }
375 r8712_fw_cmd(padapter, intcmd);
376}
377
378static int netdev_open(struct net_device *pnetdev)
379{
380 struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
381
382 if (padapter->bup == false) {
383 padapter->bDriverStopped = false;
384 padapter->bSurpriseRemoved = false;
385 padapter->bup = true;
386 if (rtl871x_hal_init(padapter) != _SUCCESS)
387 goto netdev_open_error;
388 if (r8712_initmac == NULL)
389 /* Use the mac address stored in the Efuse */
390 memcpy(pnetdev->dev_addr,
391 padapter->eeprompriv.mac_addr, ETH_ALEN);
392 else {
393 /* We have to inform f/w to use user-supplied MAC
394 * address.
395 */
396 msleep(200);
397 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr);
398 /*
399 * The "myid" function will get the wifi mac address
400 * from eeprompriv structure instead of netdev
401 * structure. So, we have to overwrite the mac_addr
402 * stored in the eeprompriv structure. In this case,
403 * the real mac address won't be used anymore. So that,
404 * the eeprompriv.mac_addr should store the mac which
405 * users specify.
406 */
407 memcpy(padapter->eeprompriv.mac_addr,
408 pnetdev->dev_addr, ETH_ALEN);
409 }
410 if (start_drv_threads(padapter) != _SUCCESS)
411 goto netdev_open_error;
412 if (padapter->dvobjpriv.inirp_init == NULL)
413 goto netdev_open_error;
414 else
415 padapter->dvobjpriv.inirp_init(padapter);
416 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
417 padapter->registrypriv.smart_ps);
418 }
419 if (!netif_queue_stopped(pnetdev))
420 netif_start_queue(pnetdev);
421 else
422 netif_wake_queue(pnetdev);
423
424 if (video_mode)
425 enable_video_mode(padapter, cbw40_enable);
426 /* start driver mlme relation timer */
427 start_drv_timers(padapter);
428 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
429 return 0;
430netdev_open_error:
431 padapter->bup = false;
432 netif_carrier_off(pnetdev);
433 netif_stop_queue(pnetdev);
434 return -1;
435}
436
437static int netdev_close(struct net_device *pnetdev)
438{
439 struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
440
441 /* Close LED*/
442 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF);
443 msleep(200);
444
445 /*s1.*/
446 if (pnetdev) {
447 if (!netif_queue_stopped(pnetdev))
448 netif_stop_queue(pnetdev);
449 }
450 /*s2.*/
451 /*s2-1. issue disassoc_cmd to fw*/
452 r8712_disassoc_cmd(padapter);
453 /*s2-2. indicate disconnect to os*/
454 r8712_ind_disconnect(padapter);
455 /*s2-3.*/
456 r8712_free_assoc_resources(padapter);
457 /*s2-4.*/
458 r8712_free_network_queue(padapter);
459 /*Stop driver mlme relation timer*/
460 stop_drv_timers(padapter);
461 return 0;
462}
463
464#include "mlme_osdep.h"