/******************************************************************************
* os_intfs.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>.
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _OS_INTFS_C_
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kthread.h>
#include "osdep_service.h"
#include "drv_types.h"
#include "xmit_osdep.h"
#include "recv_osdep.h"
#include "rtl871x_ioctl.h"
#include "usb_osintf.h"
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("rtl871x wireless lan driver");
MODULE_AUTHOR("Larry Finger");
static char ifname[IFNAMSIZ] = "wlan%d";
/* module param defaults */
static int chip_version = RTL8712_2ndCUT;
static int rfintfs = HWPI;
static int lbkmode = RTL8712_AIR_TRX;
static int hci = RTL8712_USB;
static int ampdu_enable = 1;/*for enable tx_ampdu*/
/* The video_mode variable is for vedio mode.*/
/* It may be specify when inserting module with video_mode=1 parameter.*/
static int video_mode = 1; /* enable video mode*/
/*Ndis802_11Infrastructure; infra, ad-hoc, auto*/
static int network_mode = Ndis802_11IBSS;
static int channel = 1;/*ad-hoc support requirement*/
static int wireless_mode = WIRELESS_11BG;
static int vrtl_carrier_sense = AUTO_VCS;
static int vcs_type = RTS_CTS;
static int frag_thresh = 2346;
static int preamble = PREAMBLE_LONG;/*long, short, auto*/
static int scan_mode = 1;/*active, passive*/
static int adhoc_tx_pwr = 1;
static int soft_ap;
static int smart_ps = 1;
static int power_mgnt = PS_MODE_ACTIVE;
static int radio_enable = 1;
static int long_retry_lmt = 7;
static int short_retry_lmt = 7;
static int busy_thresh = 40;
static int ack_policy = NORMAL_ACK;
static int mp_mode;
static int software_encrypt;
static int software_decrypt;
static int wmm_enable;/* default is set to disable the wmm.*/
static int uapsd_enable;
static int uapsd_max_sp = NO_LIMIT;
static int uapsd_acbk_en;
static int uapsd_acbe_en;
static int uapsd_acvi_en;
static int uapsd_acvo_en;
static int ht_enable = 1;
static int cbw40_enable = 1;
static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/
static int low_power;
/* mac address to use instead of the one stored in Efuse */
char *r8712_initmac;
static char *initmac;
/* if wifi_test = 1, driver will disable the turbo mode and pass it to
* firmware private.
*/
static int wifi_test = 0;
module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
module_param(wifi_test, int, 0644);
module_param(initmac, charp, 0644);
module_param(video_mode, int, 0644);
module_param(chip_version, int, 0644);
module_param(rfintfs, int, 0644);
module_param(lbkmode, int, 0644);
module_param(hci, int, 0644);
module_param(network_mode, int, 0644);
module_param(channel, int, 0644);
module_param(mp_mode, int, 0644);
module_param(wmm_enable, int, 0644);
module_param(vrtl_carrier_sense, int, 0644);
module_param(vcs_type, int, 0644);
module_param(busy_thresh, int, 0644);
module_param(ht_enable, int, 0644);
module_param(cbw40_enable, int, 0644);
module_param(ampdu_enable, int, 0644);
module_param(rf_config, int, 0644);
module_param(power_mgnt, int, 0644);
module_param(low_power, int, 0644);
MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE");
static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev);
static int netdev_open(struct net_device *pnetdev);
static int netdev_close(struct net_device *pnetdev);
static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev)
{
uint status = _SUCCESS;
struct registry_priv *registry_par = &padapter->registrypriv;
registry_par->chip_version = (u8)chip_version;
registry_par->rfintfs = (u8)rfintfs;
registry_par->lbkmode = (u8)lbkmode;
registry_par->hci = (u8)hci;
registry_par->network_mode = (u8)network_mode;
memcpy(registry_par->ssid.Ssid, "ANY", 3);
registry_par->ssid.SsidLength = 3;
registry_par->channel = (u8)channel;
registry_par->wireless_mode = (u8)wireless_mode;
registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense ;
registry_par->vcs_type = (u8)vcs_type;
registry_par->frag_thresh = (u16)frag_thresh;
registry_par->preamble = (u8)preamble;
registry_par->scan_mode = (u8)scan_mode;
registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr;
registry_par->soft_ap = (u8)soft_ap;
registry_par->smart_ps = (u8)smart_ps;
registry_par->power_mgnt = (u8)power_mgnt;
registry_par->radio_enable = (u8)radio_enable;
registry_par->long_retry_lmt = (u8)long_retry_lmt;
registry_par->short_retry_lmt = (u8)short_retry_lmt;
registry_par->busy_thresh = (u16)busy_thresh;
registry_par->ack_policy = (u8)ack_policy;
registry_par->mp_mode = (u8)mp_mode;
registry_par->software_encrypt = (u8)software_encrypt;
registry_par->software_decrypt = (u8)software_decrypt;
/*UAPSD*/
registry_par->wmm_enable = (u8)wmm_enable;
registry_par->uapsd_enable = (u8)uapsd_enable;
registry_par->uapsd_max_sp = (u8)uapsd_max_sp;
registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en;
registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en;
registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en;
registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en;
registry_par->ht_enable = (u8)ht_enable;
registry_par->cbw40_enable = (u8)cbw40_enable;
registry_par->ampdu_enable = (u8)ampdu_enable;
registry_par->rf_config = (u8)rf_config;
registry_par->low_power = (u8)low_power;
registry_par->wifi_test = (u8) wifi_test;
r8712_initmac = initmac;
return status;
}
static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
{
struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
struct sockaddr *addr = p;
if (padapter->bup == false)
memcpy(pnetdev->dev_addr, addr->sa_data, ETH_ALEN);
return 0;
}
static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev)
{
struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
struct recv_priv *precvpriv = &(padapter->recvpriv);
padapter->stats.tx_packets = pxmitpriv->tx_pkts;
padapter->stats.rx_packets = precvpriv->rx_pkts;
padapter->stats.tx_dropped = pxmitpriv->tx_drop;
padapter->stats.rx_dropped = precvpriv->rx_drop;
padapter->stats.tx_bytes = pxmitpriv->tx_bytes;
padapter->stats.rx_bytes = precvpriv->rx_bytes;
return &padapter->stats;
}
static const struct net_device_ops rtl8712_netdev_ops = {
.ndo_open = netdev_open,
.ndo_stop = netdev_close,
.ndo_start_xmit = r8712_xmit_entry,
.ndo_set_mac_address = r871x_net_set_mac_address,
.ndo_get_stats = r871x_net_get_stats,
.ndo_do_ioctl = r871x_ioctl,
};
struct net_device *r8712_init_netdev(void)
{
struct _adapter *padapter;
struct net_device *pnetdev;
pnetdev = alloc_etherdev(sizeof(struct _adapter));
if (!pnetdev)
return NULL;
if (dev_alloc_name(pnetdev, ifname) < 0) {
strcpy(ifname, "wlan%d");
dev_alloc_name(pnetdev, ifname);
}
padapter = (struct _adapter *) _netdev_priv(pnetdev);
padapter->pnetdev = pnetdev;
printk(KERN_INFO "r8712u: register rtl8712_netdev_ops to"
" netdev_ops\n");
pnetdev->netdev_ops = &rtl8712_netdev_ops;
pnetdev->watchdog_timeo = HZ; /* 1 second timeout */
pnetdev->wireless_handlers = (struct iw_handler_def *)
&r871x_handlers_def;
/*step 2.*/
loadparam(padapter, pnetdev);
netif_carrier_off(pnetdev);
padapter->pid = 0; /* Initial the PID value used for HW PBC.*/
return pnetdev;
}
static u32 start_drv_threads(struct _adapter *padapter)
{
padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter,
padapter->pnetdev->name);
if (IS_ERR(padapter->cmdThread) < 0)
return _FAIL;
return _SUCCESS;
}
void r8712_stop_drv_threads(struct _adapter *padapter)
{
/*Below is to termindate r8712_cmd_thread & event_thread...*/
up(&padapter->cmdpriv.cmd_queue_sema);
if (padapter->cmdThread)
_down_sema(&padapter->cmdpriv.terminate_cmdthread_sema);
padapter->cmdpriv.cmd_seq = 1;
}
static void start_drv_timers(struct _adapter *padapter)
{
_set_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
5000);
_set_timer(&padapter->mlmepriv.wdg_timer, 2000);
}
static void stop_drv_timers(struct _adapter *padapter)
{
_cancel_timer_ex(&padapter->mlmepriv.assoc_timer);
_cancel_timer_ex(&padapter->mlmepriv.sitesurveyctrl.
sitesurvey_ctrl_timer);
_cancel_timer_ex(&padapter->securitypriv.tkip_timer);
_cancel_timer_ex(&padapter->mlmepriv.scan_to_timer);
_cancel_timer_ex(&padapter->mlmepriv.dhcp_timer);
_cancel_timer_ex(&padapter->mlmepriv.wdg_timer);
}
static u8 init_default_value(struct _adapter *padapter)
{
u8 ret = _SUCCESS;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct security_priv *psecuritypriv = &padapter->securitypriv;
/*xmit_priv*/
pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense;
pxmitpriv->vcs = pregistrypriv->vcs_type;
pxmitpriv->vcs_type = pregistrypriv->vcs_type;
pxmitpriv->rts_thresh = pregistrypriv->rts_thresh;
pxmitpriv->frag_len = pregistrypriv->frag_thresh;
/*ht_priv*/
{
int i;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
phtpriv->ampdu_enable = false;/*set to disabled*/
for (i = 0; i < 16; i++)
phtpriv->baddbareq_issued[i] = false;
}
/*security_priv*/
psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt;
psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt;
psecuritypriv->binstallGrpkey = _FAIL;
/*pwrctrl_priv*/
/*registry_priv*/
r8712_init_registrypriv_dev_network(padapter);
r8712_update_registrypriv_dev_network(padapter);
/*misc.*/
return ret;
}
u8 r8712_init_drv_sw(struct _adapter *padapter)
{
if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL)
return _FAIL;
padapter->cmdpriv.padapter = padapter;
if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL)
return _FAIL;
if (r8712_init_mlme_priv(padapter) == _FAIL)
return _FAIL;
_r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
_r8712_init_recv_priv(&padapter->recvpriv, padapter);
memset((unsigned char *)&padapter->securitypriv, 0,
sizeof(struct security_priv));
_init_timer(&(padapter->securitypriv.tkip_timer), padapter->pnetdev,
r8712_use_tkipkey_handler, padapter);
_r8712_init_sta_priv(&padapter->stapriv);
padapter->stapriv.padapter = padapter;
r8712_init_bcmc_stainfo(padapter);
r8712_init_pwrctrl_priv(padapter);
sema_init(&(padapter->pwrctrlpriv.pnp_pwr_mgnt_sema), 0);
mp871xinit(padapter);
if (init_default_value(padapter) != _SUCCESS)
return _FAIL;
r8712_InitSwLeds(padapter);
return _SUCCESS;
}
u8 r8712_free_drv_sw(struct _adapter *padapter)
{
struct net_device *pnetdev = (struct net_device *)padapter->pnetdev;
r8712_free_cmd_priv(&padapter->cmdpriv);
r8712_free_evt_priv(&padapter->evtpriv);
r8712_DeInitSwLeds(padapter);
r8712_free_mlme_priv(&padapter->mlmepriv);
r8712_free_io_queue(padapter);
_free_xmit_priv(&padapter->xmitpriv);
_r8712_free_sta_priv(&padapter->stapriv);
_r8712_free_recv_priv(&padapter->recvpriv);
mp871xdeinit(padapter);
if (pnetdev)
os_free_netdev(pnetdev);
return _SUCCESS;
}
static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
{
/* bit 8:
* 1 -> enable video mode to 96B AP
* 0 -> disable video mode to 96B AP
* bit 9:
* 1 -> enable 40MHz mode
* 0 -> disable 40MHz mode
* bit 10:
* 1 -> enable STBC
* 0 -> disable STBC
*/
u32 intcmd = 0xf4000500; /* enable bit8, bit10*/
if (cbw40_value) {
/* if the driver supports the 40M bandwidth,
* we can enable the bit 9.*/
intcmd |= 0x200;
}
r8712_fw_cmd(padapter, intcmd);
}
static int netdev_open(struct net_device *pnetdev)
{
struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
if (padapter->bup == false) {
padapter->bDriverStopped = false;
padapter->bSurpriseRemoved = false;
padapter->bup = true;
if (rtl871x_hal_init(padapter) != _SUCCESS)
goto netdev_open_error;
if (r8712_initmac == NULL)
/* Use the mac address stored in the Efuse */
memcpy(pnetdev->dev_addr,
padapter->eeprompriv.mac_addr, ETH_ALEN);
else {
/* We have to inform f/w to use user-supplied MAC
* address.
*/
msleep(200);
r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr);
/*
* The "myid" function will get the wifi mac address
* from eeprompriv structure instead of netdev
* structure. So, we have to overwrite the mac_addr
* stored in the eeprompriv structure. In this case,
* the real mac address won't be used anymore. So that,
* the eeprompriv.mac_addr should store the mac which
* users specify.
*/
memcpy(padapter->eeprompriv.mac_addr,
pnetdev->dev_addr, ETH_ALEN);
}
if (start_drv_threads(padapter) != _SUCCESS)
goto netdev_open_error;
if (padapter->dvobjpriv.inirp_init == NULL)
goto netdev_open_error;
else
padapter->dvobjpriv.inirp_init(padapter);
r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
padapter->registrypriv.smart_ps);
}
if (!netif_queue_stopped(pnetdev))
netif_start_queue(pnetdev);
else
netif_wake_queue(pnetdev);
if (video_mode)
enable_video_mode(padapter, cbw40_enable);
/* start driver mlme relation timer */
start_drv_timers(padapter);
padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
return 0;
netdev_open_error:
padapter->bup = false;
netif_carrier_off(pnetdev);
netif_stop_queue(pnetdev);
return -1;
}
static int netdev_close(struct net_device *pnetdev)
{
struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
/* Close LED*/
padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF);
msleep(200);
/*s1.*/
if (pnetdev) {
if (!netif_queue_stopped(pnetdev))
netif_stop_queue(pnetdev);
}
/*s2.*/
/*s2-1. issue disassoc_cmd to fw*/
r8712_disassoc_cmd(padapter);
/*s2-2. indicate disconnect to os*/
r8712_ind_disconnect(padapter);
/*s2-3.*/
r8712_free_assoc_resources(padapter);
/*s2-4.*/
r8712_free_network_queue(padapter);
/*Stop driver mlme relation timer*/
stop_drv_timers(padapter);
return 0;
}
#include "mlme_osdep.h"