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rtl8188eu/os_dep/usb_intf.c
Larry Finger 72c61c0cb2 rtl8188eu: Fix smatch warning in os_dep/usb_intf.c 
iSmatch shows the following warning:
  CHECK   /home/finger/rtl8188eu/os_dep/usb_intf.c
/home/finger/rtl8188eu/os_dep/usb_intf.c:720 rtw_resume_process() error: potentially dereferencing uninitialized 'pwrpriv'.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
2013-09-05 17:21:46 -05:00

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31 KiB
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/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* 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
*
*
******************************************************************************/
#define _HCI_INTF_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <xmit_osdep.h>
#include <hal_intf.h>
#include <rtw_version.h>
#include <linux/usb.h>
#include <osdep_intf.h>
#include <usb_vendor_req.h>
#include <usb_ops.h>
#include <usb_osintf.h>
#include <usb_hal.h>
#include <rtw_ioctl.h>
int ui_pid[3] = {0, 0, 0};
static int rtw_suspend(struct usb_interface *intf, pm_message_t message);
static int rtw_resume(struct usb_interface *intf);
static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid);
static void rtw_dev_remove(struct usb_interface *pusb_intf);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 23))
/* Some useful macros to use to create struct usb_device_id */
#define USB_DEVICE_ID_MATCH_VENDOR 0x0001
#define USB_DEVICE_ID_MATCH_PRODUCT 0x0002
#define USB_DEVICE_ID_MATCH_DEV_LO 0x0004
#define USB_DEVICE_ID_MATCH_DEV_HI 0x0008
#define USB_DEVICE_ID_MATCH_DEV_CLASS 0x0010
#define USB_DEVICE_ID_MATCH_DEV_SUBCLASS 0x0020
#define USB_DEVICE_ID_MATCH_DEV_PROTOCOL 0x0040
#define USB_DEVICE_ID_MATCH_INT_CLASS 0x0080
#define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100
#define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
#define USB_DEVICE_ID_MATCH_INT_NUMBER 0x0400
#define USB_DEVICE_ID_MATCH_INT_INFO \
(USB_DEVICE_ID_MATCH_INT_CLASS | \
USB_DEVICE_ID_MATCH_INT_SUBCLASS | \
USB_DEVICE_ID_MATCH_INT_PROTOCOL)
#define USB_DEVICE_AND_INTERFACE_INFO(vend, prod, cl, sc, pr) \
.match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
| USB_DEVICE_ID_MATCH_DEVICE, \
.idVendor = (vend), \
.idProduct = (prod), \
.bInterfaceClass = (cl), \
.bInterfaceSubClass = (sc), \
.bInterfaceProtocol = (pr)
/**
* USB_VENDOR_AND_INTERFACE_INFO - describe a specific usb vendor with a class of usb interfaces
* @vend: the 16 bit USB Vendor ID
* @cl: bInterfaceClass value
* @sc: bInterfaceSubClass value
* @pr: bInterfaceProtocol value
*
* This macro is used to create a struct usb_device_id that matches a
* specific vendor with a specific class of interfaces.
*
* This is especially useful when explicitly matching devices that have
* vendor specific bDeviceClass values, but standards-compliant interfaces.
*/
#define USB_VENDOR_AND_INTERFACE_INFO(vend, cl, sc, pr) \
.match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
| USB_DEVICE_ID_MATCH_VENDOR, \
.idVendor = (vend), \
.bInterfaceClass = (cl), \
.bInterfaceSubClass = (sc), \
.bInterfaceProtocol = (pr)
/* ----------------------------------------------------------------------- */
#endif
#define USB_VENDER_ID_REALTEK 0x0BDA
/* DID_USB_v916_20130116 */
static struct usb_device_id rtw_usb_id_tbl[] = {
/*=== Realtek demoboard ===*/
{USB_DEVICE(USB_VENDER_ID_REALTEK, 0x8179)}, /* 8188EUS */
{USB_DEVICE(USB_VENDER_ID_REALTEK, 0x0179)}, /* 8188ETV */
/*=== Customer ID ===*/
/****** 8188EUS ********/
{USB_DEVICE(0x8179, 0x07B8)}, /* Abocom - Abocom */
{} /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, rtw_usb_id_tbl);
static struct specific_device_id specific_device_id_tbl[] = {
{} /* empty table for now */
};
struct rtw_usb_drv {
struct usb_driver usbdrv;
int drv_registered;
struct mutex hw_init_mutex;
};
static struct rtw_usb_drv rtl8188e_usb_drv = {
.usbdrv.name = (char *)"rtl8188eu",
.usbdrv.probe = rtw_drv_init,
.usbdrv.disconnect = rtw_dev_remove,
.usbdrv.id_table = rtw_usb_id_tbl,
.usbdrv.suspend = rtw_suspend,
.usbdrv.resume = rtw_resume,
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
.usbdrv.reset_resume = rtw_resume,
#endif
};
static struct rtw_usb_drv *usb_drv = &rtl8188e_usb_drv;
static inline int RT_usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
{
return (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN;
}
static inline int RT_usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
{
return (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT;
}
static inline int RT_usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
{
return (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT;
}
static inline int RT_usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd)
{
return (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK;
}
static inline int RT_usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd)
{
return RT_usb_endpoint_xfer_bulk(epd) && RT_usb_endpoint_dir_in(epd);
}
static inline int RT_usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd)
{
return RT_usb_endpoint_xfer_bulk(epd) && RT_usb_endpoint_dir_out(epd);
}
static inline int usb_endpoint_is_int(const struct usb_endpoint_descriptor *epd)
{
return RT_usb_endpoint_xfer_int(epd) && RT_usb_endpoint_dir_in(epd);
}
static inline int RT_usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
{
return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
}
static u8 rtw_init_intf_priv(struct dvobj_priv *dvobj)
{
u8 rst = _SUCCESS;
_rtw_mutex_init(&dvobj->usb_vendor_req_mutex);
dvobj->usb_alloc_vendor_req_buf = rtw_zmalloc(MAX_USB_IO_CTL_SIZE);
if (dvobj->usb_alloc_vendor_req_buf == NULL) {
DBG_88E("alloc usb_vendor_req_buf failed... /n");
rst = _FAIL;
goto exit;
}
dvobj->usb_vendor_req_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(dvobj->usb_alloc_vendor_req_buf), ALIGNMENT_UNIT);
exit:
return rst;
}
static u8 rtw_deinit_intf_priv(struct dvobj_priv *dvobj)
{
u8 rst = _SUCCESS;
if (dvobj->usb_vendor_req_buf)
rtw_mfree(dvobj->usb_alloc_vendor_req_buf, MAX_USB_IO_CTL_SIZE);
_rtw_mutex_free(&dvobj->usb_vendor_req_mutex);
return rst;
}
static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
{
int i;
u8 val8;
int status = _FAIL;
struct dvobj_priv *pdvobjpriv;
struct usb_host_config *phost_conf;
struct usb_config_descriptor *pconf_desc;
struct usb_host_interface *phost_iface;
struct usb_interface_descriptor *piface_desc;
struct usb_host_endpoint *phost_endp;
struct usb_endpoint_descriptor *pendp_desc;
struct usb_device *pusbd;
_func_enter_;
pdvobjpriv = (struct dvobj_priv *)rtw_zmalloc(sizeof(*pdvobjpriv));
if (pdvobjpriv == NULL)
goto exit;
pdvobjpriv->pusbintf = usb_intf;
pusbd = interface_to_usbdev(usb_intf);
pdvobjpriv->pusbdev = pusbd;
usb_set_intfdata(usb_intf, pdvobjpriv);
pdvobjpriv->RtNumInPipes = 0;
pdvobjpriv->RtNumOutPipes = 0;
phost_conf = pusbd->actconfig;
pconf_desc = &phost_conf->desc;
phost_iface = &usb_intf->altsetting[0];
piface_desc = &phost_iface->desc;
pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces;
pdvobjpriv->InterfaceNumber = piface_desc->bInterfaceNumber;
pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints;
for (i = 0; i < pdvobjpriv->nr_endpoint; i++) {
phost_endp = phost_iface->endpoint + i;
if (phost_endp) {
pendp_desc = &phost_endp->desc;
DBG_88E("\nusb_endpoint_descriptor(%d):\n", i);
DBG_88E("bLength=%x\n", pendp_desc->bLength);
DBG_88E("bDescriptorType=%x\n",
pendp_desc->bDescriptorType);
DBG_88E("bEndpointAddress=%x\n",
pendp_desc->bEndpointAddress);
DBG_88E("wMaxPacketSize=%d\n",
le16_to_cpu(pendp_desc->wMaxPacketSize));
DBG_88E("bInterval=%x\n", pendp_desc->bInterval);
if (RT_usb_endpoint_is_bulk_in(pendp_desc)) {
DBG_88E("RT_usb_endpoint_is_bulk_in = %x\n",
RT_usb_endpoint_num(pendp_desc));
pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = RT_usb_endpoint_num(pendp_desc);
pdvobjpriv->RtNumInPipes++;
} else if (usb_endpoint_is_int(pendp_desc)) {
DBG_88E("usb_endpoint_is_int = %x, Interval = %x\n",
RT_usb_endpoint_num(pendp_desc),
pendp_desc->bInterval);
pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = RT_usb_endpoint_num(pendp_desc);
pdvobjpriv->RtNumInPipes++;
} else if (RT_usb_endpoint_is_bulk_out(pendp_desc)) {
DBG_88E("RT_usb_endpoint_is_bulk_out = %x\n",
RT_usb_endpoint_num(pendp_desc));
pdvobjpriv->RtOutPipe[pdvobjpriv->RtNumOutPipes] = RT_usb_endpoint_num(pendp_desc);
pdvobjpriv->RtNumOutPipes++;
}
pdvobjpriv->ep_num[i] = RT_usb_endpoint_num(pendp_desc);
}
}
DBG_88E("nr_endpoint=%d, in_num=%d, out_num=%d\n\n",
pdvobjpriv->nr_endpoint, pdvobjpriv->RtNumInPipes,
pdvobjpriv->RtNumOutPipes);
if (pusbd->speed == USB_SPEED_HIGH) {
pdvobjpriv->ishighspeed = true;
DBG_88E("USB_SPEED_HIGH\n");
} else {
pdvobjpriv->ishighspeed = false;
DBG_88E("NON USB_SPEED_HIGH\n");
}
if (rtw_init_intf_priv(pdvobjpriv) == _FAIL) {
RT_TRACE(_module_os_intfs_c_, _drv_err_,
("\n Can't INIT rtw_init_intf_priv\n"));
goto free_dvobj;
}
/* 3 misc */
_rtw_init_sema(&(pdvobjpriv->usb_suspend_sema), 0);
rtw_reset_continual_urb_error(pdvobjpriv);
usb_get_dev(pusbd);
status = _SUCCESS;
free_dvobj:
if (status != _SUCCESS && pdvobjpriv) {
usb_set_intfdata(usb_intf, NULL);
rtw_mfree((u8 *)pdvobjpriv, sizeof(*pdvobjpriv));
pdvobjpriv = NULL;
}
exit:
_func_exit_;
return pdvobjpriv;
}
static void usb_dvobj_deinit(struct usb_interface *usb_intf)
{
struct dvobj_priv *dvobj = usb_get_intfdata(usb_intf);
_func_enter_;
usb_set_intfdata(usb_intf, NULL);
if (dvobj) {
/* Modify condition for 92DU DMDP 2010.11.18, by Thomas */
if ((dvobj->NumInterfaces != 2 &&
dvobj->NumInterfaces != 3) ||
(dvobj->InterfaceNumber == 1)) {
if (interface_to_usbdev(usb_intf)->state !=
USB_STATE_NOTATTACHED) {
/* If we didn't unplug usb dongle and
* remove/insert module, driver fails
* on sitesurvey for the first time when
* device is up . Reset usb port for sitesurvey
* fail issue. */
DBG_88E("usb attached..., try to reset usb device\n");
usb_reset_device(interface_to_usbdev(usb_intf));
}
}
rtw_deinit_intf_priv(dvobj);
rtw_mfree((u8 *)dvobj, sizeof(*dvobj));
}
usb_put_dev(interface_to_usbdev(usb_intf));
_func_exit_;
}
static void chip_by_usb_id(struct adapter *padapter,
const struct usb_device_id *pdid)
{
padapter->chip_type = NULL_CHIP_TYPE;
hal_set_hw_type(padapter);
}
static void usb_intf_start(struct adapter *padapter)
{
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_start\n"));
rtw_hal_inirp_init(padapter);
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_start\n"));
}
static void usb_intf_stop(struct adapter *padapter)
{
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n"));
/* disabel_hw_interrupt */
if (!padapter->bSurpriseRemoved) {
/* device still exists, so driver can do i/o operation */
/* TODO: */
RT_TRACE(_module_hci_intfs_c_, _drv_err_,
("SurpriseRemoved == false\n"));
}
/* cancel in irp */
rtw_hal_inirp_deinit(padapter);
/* cancel out irp */
rtw_write_port_cancel(padapter);
/* todo:cancel other irps */
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_stop\n"));
}
static void rtw_dev_unload(struct adapter *padapter)
{
struct net_device *pnetdev = (struct net_device *)padapter->pnetdev;
u8 val8;
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_dev_unload\n"));
if (padapter->bup) {
DBG_88E("===> rtw_dev_unload\n");
padapter->bDriverStopped = true;
if (padapter->xmitpriv.ack_tx)
rtw_ack_tx_done(&padapter->xmitpriv, RTW_SCTX_DONE_DRV_STOP);
/* s3. */
if (padapter->intf_stop)
padapter->intf_stop(padapter);
/* s4. */
if (!padapter->pwrctrlpriv.bInternalAutoSuspend)
rtw_stop_drv_threads(padapter);
/* s5. */
if (!padapter->bSurpriseRemoved) {
#ifdef CONFIG_WOWLAN
if ((padapter->pwrctrlpriv.bSupportRemoteWakeup) &&
(padapter->pwrctrlpriv.wowlan_mode))
DBG_88E("%s bSupportWakeOnWlan == true do not run rtw_hal_deinit()\n",
__func__);
else
#endif /* CONFIG_WOWLAN */
rtw_hal_deinit(padapter);
padapter->bSurpriseRemoved = true;
}
padapter->bup = false;
#ifdef CONFIG_WOWLAN
padapter->hw_init_completed = false;
#endif /* CONFIG_WOWLAN */
} else {
RT_TRACE(_module_hci_intfs_c_, _drv_err_,
("r871x_dev_unload():padapter->bup == false\n"));
}
DBG_88E("<=== rtw_dev_unload\n");
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-rtw_dev_unload\n"));
}
static void process_spec_devid(const struct usb_device_id *pdid)
{
u16 vid, pid;
u32 flags;
int i;
int num = sizeof(specific_device_id_tbl) /
sizeof(struct specific_device_id);
for (i = 0; i < num; i++) {
vid = specific_device_id_tbl[i].idVendor;
pid = specific_device_id_tbl[i].idProduct;
flags = specific_device_id_tbl[i].flags;
if ((pdid->idVendor == vid) && (pdid->idProduct == pid) &&
(flags&SPEC_DEV_ID_DISABLE_HT)) {
rtw_ht_enable = 0;
rtw_cbw40_enable = 0;
rtw_ampdu_enable = 0;
}
}
}
int rtw_hw_suspend(struct adapter *padapter)
{
struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
struct usb_interface *pusb_intf = adapter_to_dvobj(padapter)->pusbintf;
struct net_device *pnetdev = padapter->pnetdev;
_func_enter_;
if ((!padapter->bup) || (padapter->bDriverStopped) ||
(padapter->bSurpriseRemoved)) {
DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
padapter->bup, padapter->bDriverStopped,
padapter->bSurpriseRemoved);
goto error_exit;
}
if (padapter) { /* system suspend */
LeaveAllPowerSaveMode(padapter);
DBG_88E("==> rtw_hw_suspend\n");
_enter_pwrlock(&pwrpriv->lock);
pwrpriv->bips_processing = true;
/* s1. */
if (pnetdev) {
netif_carrier_off(pnetdev);
rtw_netif_stop_queue(pnetdev);
}
/* s2. */
rtw_disassoc_cmd(padapter, 500, false);
/* s2-2. indicate disconnect to os */
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
_clr_fwstate_(pmlmepriv, _FW_LINKED);
rtw_led_control(padapter, LED_CTL_NO_LINK);
rtw_os_indicate_disconnect(padapter);
/* donnot enqueue cmd */
rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
}
}
/* s2-3. */
rtw_free_assoc_resources(padapter, 1);
/* s2-4. */
rtw_free_network_queue(padapter, true);
rtw_ips_dev_unload(padapter);
pwrpriv->rf_pwrstate = rf_off;
pwrpriv->bips_processing = false;
_exit_pwrlock(&pwrpriv->lock);
} else {
goto error_exit;
}
_func_exit_;
return 0;
error_exit:
DBG_88E("%s, failed\n", __func__);
return -1;
}
int rtw_hw_resume(struct adapter *padapter)
{
struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
struct usb_interface *pusb_intf = adapter_to_dvobj(padapter)->pusbintf;
struct net_device *pnetdev = padapter->pnetdev;
_func_enter_;
if (padapter) { /* system resume */
DBG_88E("==> rtw_hw_resume\n");
_enter_pwrlock(&pwrpriv->lock);
pwrpriv->bips_processing = true;
rtw_reset_drv_sw(padapter);
if (pm_netdev_open(pnetdev, false) != 0) {
_exit_pwrlock(&pwrpriv->lock);
goto error_exit;
}
netif_device_attach(pnetdev);
netif_carrier_on(pnetdev);
if (!netif_queue_stopped(pnetdev))
netif_start_queue(pnetdev);
else
netif_wake_queue(pnetdev);
pwrpriv->bkeepfwalive = false;
pwrpriv->brfoffbyhw = false;
pwrpriv->rf_pwrstate = rf_on;
pwrpriv->bips_processing = false;
_exit_pwrlock(&pwrpriv->lock);
} else {
goto error_exit;
}
_func_exit_;
return 0;
error_exit:
DBG_88E("%s, Open net dev failed\n", __func__);
return -1;
}
static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message)
{
struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
struct adapter *padapter = dvobj->if1;
struct net_device *pnetdev = padapter->pnetdev;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
struct usb_device *usb_dev = interface_to_usbdev(pusb_intf);
#ifdef CONFIG_WOWLAN
struct wowlan_ioctl_param poidparam;
#endif /* CONFIG_WOWLAN */
int ret = 0;
u32 start_time = rtw_get_current_time();
_func_enter_;
DBG_88E("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
#ifdef CONFIG_WOWLAN
if (check_fwstate(pmlmepriv, _FW_LINKED))
padapter->pwrctrlpriv.wowlan_mode = true;
else
padapter->pwrctrlpriv.wowlan_mode = false;
#endif
if ((!padapter->bup) || (padapter->bDriverStopped) ||
(padapter->bSurpriseRemoved)) {
DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
padapter->bup, padapter->bDriverStopped,
padapter->bSurpriseRemoved);
goto exit;
}
pwrpriv->bInSuspend = true;
rtw_cancel_all_timer(padapter);
LeaveAllPowerSaveMode(padapter);
_enter_pwrlock(&pwrpriv->lock);
/* s1. */
if (pnetdev) {
netif_carrier_off(pnetdev);
rtw_netif_stop_queue(pnetdev);
}
#ifdef CONFIG_WOWLAN
if (padapter->pwrctrlpriv.bSupportRemoteWakeup &&
padapter->pwrctrlpriv.wowlan_mode) {
/* set H2C command */
poidparam.subcode = WOWLAN_ENABLE;
padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_WOWLAN,
(u8 *)&poidparam);
} else
#else
{
/* s2. */
rtw_disassoc_cmd(padapter, 0, false);
}
#endif /* CONFIG_WOWLAN */
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) &&
check_fwstate(pmlmepriv, _FW_LINKED)) {
DBG_88E("%s:%d %s(%pM), length:%d assoc_ssid.length:%d\n",
__func__, __LINE__,
pmlmepriv->cur_network.network.Ssid.Ssid,
pmlmepriv->cur_network.network.MacAddress,
pmlmepriv->cur_network.network.Ssid.SsidLength,
pmlmepriv->assoc_ssid.SsidLength);
pmlmepriv->to_roaming = 1;
}
/* s2-2. indicate disconnect to os */
rtw_indicate_disconnect(padapter);
/* s2-3. */
rtw_free_assoc_resources(padapter, 1);
/* s2-4. */
rtw_free_network_queue(padapter, true);
rtw_dev_unload(padapter);
_exit_pwrlock(&pwrpriv->lock);
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
rtw_indicate_scan_done(padapter, 1);
if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
rtw_indicate_disconnect(padapter);
exit:
DBG_88E("<=== %s return %d.............. in %dms\n", __func__
, ret, rtw_get_passing_time_ms(start_time));
_func_exit_;
return ret;
}
static int rtw_resume(struct usb_interface *pusb_intf)
{
struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
struct adapter *padapter = dvobj->if1;
struct net_device *pnetdev = padapter->pnetdev;
struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
int ret = 0;
if (pwrpriv->bInternalAutoSuspend)
ret = rtw_resume_process(padapter);
else
ret = rtw_resume_process(padapter);
return ret;
}
int rtw_resume_process(struct adapter *padapter)
{
struct net_device *pnetdev;
struct pwrctrl_priv *pwrpriv;
int ret = -1;
u32 start_time = rtw_get_current_time();
#ifdef CONFIG_BT_COEXIST
u8 pm_cnt;
#endif /* ifdef CONFIG_BT_COEXIST */
_func_enter_;
DBG_88E("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
if (padapter) {
pnetdev = padapter->pnetdev;
pwrpriv = &padapter->pwrctrlpriv;
} else {
goto exit;
}
_enter_pwrlock(&pwrpriv->lock);
rtw_reset_drv_sw(padapter);
pwrpriv->bkeepfwalive = false;
DBG_88E("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive);
if (pm_netdev_open(pnetdev, true) != 0)
goto exit;
netif_device_attach(pnetdev);
netif_carrier_on(pnetdev);
_exit_pwrlock(&pwrpriv->lock);
if (padapter->pid[1] != 0) {
DBG_88E("pid[1]:%d\n", padapter->pid[1]);
rtw_signal_process(padapter->pid[1], SIGUSR2);
}
rtw_roaming(padapter, NULL);
ret = 0;
exit:
if (pwrpriv)
pwrpriv->bInSuspend = false;
DBG_88E("<=== %s return %d.............. in %dms\n", __func__
, ret, rtw_get_passing_time_ms(start_time));
_func_exit_;
return ret;
}
/*
* drv_init() - a device potentially for us
*
* notes: drv_init() is called when the bus driver has located
* a card for us to support.
* We accept the new device by returning 0.
*/
static struct adapter *rtw_sw_export;
static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
struct usb_interface *pusb_intf, const struct usb_device_id *pdid)
{
struct adapter *padapter = NULL;
struct net_device *pnetdev = NULL;
int status = _FAIL;
padapter = (struct adapter *)rtw_zvmalloc(sizeof(*padapter));
if (padapter == NULL)
goto exit;
padapter->dvobj = dvobj;
dvobj->if1 = padapter;
padapter->bDriverStopped = true;
padapter->hw_init_mutex = &usb_drv->hw_init_mutex;
/* step 1-1., decide the chip_type via vid/pid */
padapter->interface_type = RTW_USB;
chip_by_usb_id(padapter, pdid);
if (rtw_handle_dualmac(padapter, 1) != _SUCCESS)
goto free_adapter;
pnetdev = rtw_init_netdev(padapter);
if (pnetdev == NULL)
goto handle_dualmac;
SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj));
padapter = rtw_netdev_priv(pnetdev);
/* step 2. hook HalFunc, allocate HalData */
hal_set_hal_ops(padapter);
padapter->intf_start = &usb_intf_start;
padapter->intf_stop = &usb_intf_stop;
/* step init_io_priv */
rtw_init_io_priv(padapter, usb_set_intf_ops);
/* step read_chip_version */
rtw_hal_read_chip_version(padapter);
/* step usb endpoint mapping */
rtw_hal_chip_configure(padapter);
/* step read efuse/eeprom data and get mac_addr */
rtw_hal_read_chip_info(padapter);
/* step 5. */
if (rtw_init_drv_sw(padapter) == _FAIL) {
RT_TRACE(_module_hci_intfs_c_, _drv_err_,
("Initialize driver software resource Failed!\n"));
goto free_hal_data;
}
#ifdef CONFIG_PM
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
if (padapter->pwrctrlpriv.bSupportRemoteWakeup) {
dvobj->pusbdev->do_remote_wakeup = 1;
pusb_intf->needs_remote_wakeup = 1;
device_init_wakeup(&pusb_intf->dev, 1);
DBG_88E("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~~~~\n");
DBG_88E("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~[%d]~~~\n", device_may_wakeup(&pusb_intf->dev));
}
#endif
#endif
/* 2012-07-11 Move here to prevent the 8723AS-VAU BT auto
* suspend influence */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33))
if (usb_autopm_get_interface(pusb_intf) < 0)
DBG_88E("can't get autopm:\n");
#endif
#ifdef CONFIG_BT_COEXIST
padapter->pwrctrlpriv.autopm_cnt = 1;
#endif
/* alloc dev name after read efuse. */
rtw_init_netdev_name(pnetdev, padapter->registrypriv.ifname);
rtw_macaddr_cfg(padapter->eeprompriv.mac_addr);
rtw_init_wifidirect_addrs(padapter, padapter->eeprompriv.mac_addr,
padapter->eeprompriv.mac_addr);
_rtw_memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN);
DBG_88E("MAC Address from pnetdev->dev_addr = %pM\n",
pnetdev->dev_addr);
/* step 6. Tell the network stack we exist */
if (register_netdev(pnetdev) != 0) {
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("register_netdev() failed\n"));
goto free_hal_data;
}
DBG_88E("bDriverStopped:%d, bSurpriseRemoved:%d, bup:%d, hw_init_completed:%d\n"
, padapter->bDriverStopped
, padapter->bSurpriseRemoved
, padapter->bup
, padapter->hw_init_completed
);
status = _SUCCESS;
free_hal_data:
if (status != _SUCCESS && padapter->HalData)
kfree(padapter->HalData);
free_wdev:
handle_dualmac:
if (status != _SUCCESS)
rtw_handle_dualmac(padapter, 0);
free_adapter:
if (status != _SUCCESS) {
if (pnetdev)
rtw_free_netdev(pnetdev);
else if (padapter)
rtw_vmfree((u8 *)padapter, sizeof(*padapter));
padapter = NULL;
}
exit:
return padapter;
}
static void rtw_usb_if1_deinit(struct adapter *if1)
{
struct net_device *pnetdev = if1->pnetdev;
struct mlme_priv *pmlmepriv = &if1->mlmepriv;
if (check_fwstate(pmlmepriv, _FW_LINKED))
rtw_disassoc_cmd(if1, 0, false);
#ifdef CONFIG_AP_MODE
free_mlme_ap_info(if1);
#endif
if (if1->DriverState != DRIVER_DISAPPEAR) {
if (pnetdev) {
/* will call netdev_close() */
unregister_netdev(pnetdev);
rtw_proc_remove_one(pnetdev);
}
}
rtw_cancel_all_timer(if1);
#ifdef CONFIG_WOWLAN
if1->pwrctrlpriv.wowlan_mode = false;
#endif /* CONFIG_WOWLAN */
rtw_dev_unload(if1);
DBG_88E("+r871xu_dev_remove, hw_init_completed=%d\n",
if1->hw_init_completed);
rtw_handle_dualmac(if1, 0);
#ifdef CONFIG_BT_COEXIST
if (1 == if1->pwrctrlpriv.autopm_cnt) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33))
usb_autopm_put_interface(adapter_to_dvobj(if1)->pusbintf);
#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20))
usb_autopm_enable(adapter_to_dvobj(if1)->pusbintf);
#else
usb_autosuspend_device(adapter_to_dvobj(if1)->pusbdev, 1);
#endif
if1->pwrctrlpriv.autopm_cnt--;
}
#endif
rtw_free_drv_sw(if1);
if (pnetdev)
rtw_free_netdev(pnetdev);
}
static void dump_usb_interface(struct usb_interface *usb_intf)
{
int i;
u8 val8;
struct usb_device *udev = interface_to_usbdev(usb_intf);
struct usb_device_descriptor *dev_desc = &udev->descriptor;
struct usb_host_config *act_conf = udev->actconfig;
struct usb_config_descriptor *act_conf_desc = &act_conf->desc;
struct usb_host_interface *host_iface;
struct usb_interface_descriptor *iface_desc;
struct usb_host_endpoint *host_endp;
struct usb_endpoint_descriptor *endp_desc;
/* The usb device this usb interface belongs to */
DBG_88E("usb_interface:%p, usb_device:%p(num:%d, path:%s), usb_device_descriptor:%p\n",
usb_intf, udev, udev->devnum, udev->devpath, dev_desc);
DBG_88E("bLength:%u\n", dev_desc->bLength);
DBG_88E("bDescriptorType:0x%02x\n", dev_desc->bDescriptorType);
DBG_88E("bcdUSB:0x%04x\n", le16_to_cpu(dev_desc->bcdUSB));
DBG_88E("bDeviceClass:0x%02x\n", dev_desc->bDeviceClass);
DBG_88E("bDeviceSubClass:0x%02x\n", dev_desc->bDeviceSubClass);
DBG_88E("bDeviceProtocol:0x%02x\n", dev_desc->bDeviceProtocol);
DBG_88E("bMaxPacketSize0:%u\n", dev_desc->bMaxPacketSize0);
DBG_88E("idVendor:0x%04x\n", le16_to_cpu(dev_desc->idVendor));
DBG_88E("idProduct:0x%04x\n", le16_to_cpu(dev_desc->idProduct));
DBG_88E("bcdDevice:0x%04x\n", le16_to_cpu(dev_desc->bcdDevice));
DBG_88E("iManufacturer:0x02%x\n", dev_desc->iManufacturer);
DBG_88E("iProduct:0x%02x\n", dev_desc->iProduct);
DBG_88E("iSerialNumber:0x%02x\n", dev_desc->iSerialNumber);
DBG_88E("bNumConfigurations:%u\n", dev_desc->bNumConfigurations);
/* The acting usb_config_descriptor */
DBG_88E("\nact_conf_desc:%p\n", act_conf_desc);
DBG_88E("bLength:%u\n", act_conf_desc->bLength);
DBG_88E("bDescriptorType:0x%02x\n", act_conf_desc->bDescriptorType);
DBG_88E("wTotalLength:%u\n", le16_to_cpu(act_conf_desc->wTotalLength));
DBG_88E("bNumInterfaces:%u\n", act_conf_desc->bNumInterfaces);
DBG_88E("bConfigurationValue:0x%02x\n",
act_conf_desc->bConfigurationValue);
DBG_88E("iConfiguration:0x%02x\n", act_conf_desc->iConfiguration);
DBG_88E("bmAttributes:0x%02x\n", act_conf_desc->bmAttributes);
DBG_88E("bMaxPower=%u\n", act_conf_desc->bMaxPower);
DBG_88E("****** num of altsetting = (%d) ******/\n",
usb_intf->num_altsetting);
/* Get he host side alternate settingi
* (the current alternate setting) for this interface*/
host_iface = usb_intf->cur_altsetting;
iface_desc = &host_iface->desc;
/* The current alternate setting*/
DBG_88E("\nusb_interface_descriptor:%p:\n", iface_desc);
DBG_88E("bLength:%u\n", iface_desc->bLength);
DBG_88E("bDescriptorType:0x%02x\n", iface_desc->bDescriptorType);
DBG_88E("bInterfaceNumber:0x%02x\n", iface_desc->bInterfaceNumber);
DBG_88E("bAlternateSetting=%x\n", iface_desc->bAlternateSetting);
DBG_88E("bNumEndpoints=%x\n", iface_desc->bNumEndpoints);
DBG_88E("bInterfaceClass=%x\n", iface_desc->bInterfaceClass);
DBG_88E("bInterfaceSubClass=%x\n", iface_desc->bInterfaceSubClass);
DBG_88E("bInterfaceProtocol=%x\n", iface_desc->bInterfaceProtocol);
DBG_88E("iInterface=%x\n", iface_desc->iInterface);
for (i = 0; i < iface_desc->bNumEndpoints; i++) {
host_endp = host_iface->endpoint + i;
if (host_endp) {
endp_desc = &host_endp->desc;
DBG_88E("\nusb_endpoint_descriptor(%d):\n", i);
DBG_88E("bLength=%x\n", endp_desc->bLength);
DBG_88E("bDescriptorType=%x\n",
endp_desc->bDescriptorType);
DBG_88E("bEndpointAddress=%x\n",
endp_desc->bEndpointAddress);
DBG_88E("bmAttributes=%x\n",
endp_desc->bmAttributes);
DBG_88E("wMaxPacketSize=%x\n",
endp_desc->wMaxPacketSize);
DBG_88E("wMaxPacketSize=%x\n",
le16_to_cpu(endp_desc->wMaxPacketSize));
DBG_88E("bInterval=%x\n", endp_desc->bInterval);
if (RT_usb_endpoint_is_bulk_in(endp_desc))
DBG_88E("RT_usb_endpoint_is_bulk_in = %x\n",
RT_usb_endpoint_num(endp_desc));
else if (usb_endpoint_is_int(endp_desc))
DBG_88E("usb_endpoint_is_int = %x, Interval = %x\n",
RT_usb_endpoint_num(endp_desc),
endp_desc->bInterval);
else if (RT_usb_endpoint_is_bulk_out(endp_desc))
DBG_88E("RT_usb_endpoint_is_bulk_out = %x\n",
RT_usb_endpoint_num(endp_desc));
}
}
if (udev->speed == USB_SPEED_HIGH)
DBG_88E("USB_SPEED_HIGH\n");
else
DBG_88E("NON USB_SPEED_HIGH\n");
}
static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid)
{
int i;
struct adapter *if1 = NULL, *if2 = NULL;
int status;
struct dvobj_priv *dvobj;
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_init\n"));
/* step 0. */
process_spec_devid(pdid);
/* Initialize dvobj_priv */
dvobj = usb_dvobj_init(pusb_intf);
if (dvobj == NULL) {
RT_TRACE(_module_hci_intfs_c_, _drv_err_,
("initialize device object priv Failed!\n"));
goto exit;
}
if1 = rtw_usb_if1_init(dvobj, pusb_intf, pdid);
if (if1 == NULL) {
DBG_88E("rtw_init_primarystruct adapter Failed!\n");
goto free_dvobj;
}
if (ui_pid[1] != 0) {
DBG_88E("ui_pid[1]:%d\n", ui_pid[1]);
rtw_signal_process(ui_pid[1], SIGUSR2);
}
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-871x_drv - drv_init, success!\n"));
status = _SUCCESS;
free_if1:
if (status != _SUCCESS && if1)
rtw_usb_if1_deinit(if1);
free_dvobj:
if (status != _SUCCESS)
usb_dvobj_deinit(pusb_intf);
exit:
return status == _SUCCESS ? 0 : -ENODEV;
}
/*
* dev_remove() - our device is being removed
*/
/* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove() => how to recognize both */
static void rtw_dev_remove(struct usb_interface *pusb_intf)
{
struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
struct adapter *padapter = dvobj->if1;
struct net_device *pnetdev = padapter->pnetdev;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
_func_enter_;
DBG_88E("+rtw_dev_remove\n");
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+dev_remove()\n"));
if (usb_drv->drv_registered)
padapter->bSurpriseRemoved = true;
rtw_pm_set_ips(padapter, IPS_NONE);
rtw_pm_set_lps(padapter, PS_MODE_ACTIVE);
LeaveAllPowerSaveMode(padapter);
rtw_usb_if1_deinit(padapter);
usb_dvobj_deinit(pusb_intf);
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-dev_remove()\n"));
DBG_88E("-r871xu_dev_remove, done\n");
_func_exit_;
return;
}
static int __init rtw_drv_entry(void)
{
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_entry\n"));
DBG_88E(DRV_NAME " driver version=%s\n", DRIVERVERSION);
DBG_88E("build time: %s %s\n", __DATE__, __TIME__);
rtw_suspend_lock_init();
_rtw_mutex_init(&usb_drv->hw_init_mutex);
usb_drv->drv_registered = true;
return usb_register(&usb_drv->usbdrv);
}
static void __exit rtw_drv_halt(void)
{
RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_halt\n"));
DBG_88E("+rtw_drv_halt\n");
rtw_suspend_lock_uninit();
usb_drv->drv_registered = false;
usb_deregister(&usb_drv->usbdrv);
_rtw_mutex_free(&usb_drv->hw_init_mutex);
DBG_88E("-rtw_drv_halt\n");
}
module_init(rtw_drv_entry);
module_exit(rtw_drv_halt);
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