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/drivers/staging/rtl8712/os_intfs.c

https://bitbucket.org/slukk/jb-tsm-kernel-4.2
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"