![Larry Finger](/assets/img/avatar_default.png)
The addition of a driver for the RTL8821AE requires a new API for the fill_tx_desc() and set_desc() callback routines. This commit makes the appropriate modifications in all the other drivers. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1175 lines
31 KiB
C
1175 lines
31 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2009-2012 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* wlanfae <wlanfae@realtek.com>
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* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
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* Hsinchu 300, Taiwan.
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*
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*****************************************************************************/
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#include "wifi.h"
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#include "core.h"
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#include "usb.h"
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#include "base.h"
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#include "ps.h"
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#include "rtl8192c/fw_common.h"
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#include <linux/export.h>
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#include <linux/module.h>
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MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
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MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
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MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("USB basic driver for rtlwifi");
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#define REALTEK_USB_VENQT_READ 0xC0
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#define REALTEK_USB_VENQT_WRITE 0x40
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#define REALTEK_USB_VENQT_CMD_REQ 0x05
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#define REALTEK_USB_VENQT_CMD_IDX 0x00
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#define MAX_USBCTRL_VENDORREQ_TIMES 10
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static void usbctrl_async_callback(struct urb *urb)
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{
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if (urb) {
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/* free dr */
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kfree(urb->setup_packet);
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/* free databuf */
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kfree(urb->transfer_buffer);
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}
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}
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static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
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u16 value, u16 index, void *pdata,
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u16 len)
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{
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int rc;
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unsigned int pipe;
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u8 reqtype;
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struct usb_ctrlrequest *dr;
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struct urb *urb;
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const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE;
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u8 *databuf;
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if (WARN_ON_ONCE(len > databuf_maxlen))
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len = databuf_maxlen;
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pipe = usb_sndctrlpipe(udev, 0); /* write_out */
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reqtype = REALTEK_USB_VENQT_WRITE;
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dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
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if (!dr)
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return -ENOMEM;
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databuf = kmalloc(databuf_maxlen, GFP_ATOMIC);
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if (!databuf) {
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kfree(dr);
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return -ENOMEM;
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}
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urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!urb) {
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kfree(databuf);
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kfree(dr);
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return -ENOMEM;
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}
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dr->bRequestType = reqtype;
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dr->bRequest = request;
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dr->wValue = cpu_to_le16(value);
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dr->wIndex = cpu_to_le16(index);
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dr->wLength = cpu_to_le16(len);
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/* data are already in little-endian order */
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memcpy(databuf, pdata, len);
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usb_fill_control_urb(urb, udev, pipe,
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(unsigned char *)dr, databuf, len,
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usbctrl_async_callback, NULL);
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rc = usb_submit_urb(urb, GFP_ATOMIC);
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if (rc < 0) {
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kfree(databuf);
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kfree(dr);
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}
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usb_free_urb(urb);
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return rc;
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}
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static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
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u16 value, u16 index, void *pdata,
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u16 len)
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{
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unsigned int pipe;
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int status;
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u8 reqtype;
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int vendorreq_times = 0;
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static int count;
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pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
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reqtype = REALTEK_USB_VENQT_READ;
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do {
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status = usb_control_msg(udev, pipe, request, reqtype, value,
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index, pdata, len, 0); /*max. timeout*/
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if (status < 0) {
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/* firmware download is checksumed, don't retry */
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if ((value >= FW_8192C_START_ADDRESS &&
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value <= FW_8192C_END_ADDRESS))
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break;
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} else {
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break;
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}
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} while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES);
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if (status < 0 && count++ < 4)
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pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
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value, status, *(u32 *)pdata);
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return status;
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}
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static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len)
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{
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struct device *dev = rtlpriv->io.dev;
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struct usb_device *udev = to_usb_device(dev);
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u8 request;
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u16 wvalue;
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u16 index;
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__le32 *data;
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unsigned long flags;
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spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags);
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if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT)
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rtlpriv->usb_data_index = 0;
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data = &rtlpriv->usb_data[rtlpriv->usb_data_index];
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spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags);
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request = REALTEK_USB_VENQT_CMD_REQ;
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index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
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wvalue = (u16)addr;
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_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
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return le32_to_cpu(*data);
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}
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static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
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{
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return (u8)_usb_read_sync(rtlpriv, addr, 1);
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}
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static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
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{
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return (u16)_usb_read_sync(rtlpriv, addr, 2);
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}
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static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
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{
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return _usb_read_sync(rtlpriv, addr, 4);
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}
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static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
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u16 len)
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{
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u8 request;
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u16 wvalue;
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u16 index;
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__le32 data;
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request = REALTEK_USB_VENQT_CMD_REQ;
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index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
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wvalue = (u16)(addr&0x0000ffff);
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data = cpu_to_le32(val);
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_usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
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len);
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}
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static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
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{
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struct device *dev = rtlpriv->io.dev;
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_usb_write_async(to_usb_device(dev), addr, val, 1);
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}
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static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
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{
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struct device *dev = rtlpriv->io.dev;
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_usb_write_async(to_usb_device(dev), addr, val, 2);
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}
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static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
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{
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struct device *dev = rtlpriv->io.dev;
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_usb_write_async(to_usb_device(dev), addr, val, 4);
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}
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static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data,
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u16 len)
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{
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struct device *dev = rtlpriv->io.dev;
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struct usb_device *udev = to_usb_device(dev);
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u8 request = REALTEK_USB_VENQT_CMD_REQ;
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u8 reqtype = REALTEK_USB_VENQT_WRITE;
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u16 wvalue;
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u16 index = REALTEK_USB_VENQT_CMD_IDX;
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int pipe = usb_sndctrlpipe(udev, 0); /* write_out */
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u8 *buffer;
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wvalue = (u16)(addr & 0x0000ffff);
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buffer = kmemdup(data, len, GFP_ATOMIC);
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if (!buffer)
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return;
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usb_control_msg(udev, pipe, request, reqtype, wvalue,
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index, buffer, len, 50);
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kfree(buffer);
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}
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static void _rtl_usb_io_handler_init(struct device *dev,
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struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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rtlpriv->io.dev = dev;
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mutex_init(&rtlpriv->io.bb_mutex);
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rtlpriv->io.write8_async = _usb_write8_async;
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rtlpriv->io.write16_async = _usb_write16_async;
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rtlpriv->io.write32_async = _usb_write32_async;
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rtlpriv->io.read8_sync = _usb_read8_sync;
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rtlpriv->io.read16_sync = _usb_read16_sync;
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rtlpriv->io.read32_sync = _usb_read32_sync;
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rtlpriv->io.writeN_sync = _usb_writeN_sync;
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}
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static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
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{
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struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);
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mutex_destroy(&rtlpriv->io.bb_mutex);
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}
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/**
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*
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* Default aggregation handler. Do nothing and just return the oldest skb.
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*/
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static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
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struct sk_buff_head *list)
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{
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return skb_dequeue(list);
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}
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#define IS_HIGH_SPEED_USB(udev) \
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((USB_SPEED_HIGH == (udev)->speed) ? true : false)
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static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
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{
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u32 i;
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
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rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
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? USB_HIGH_SPEED_BULK_SIZE
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: USB_FULL_SPEED_BULK_SIZE;
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RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n",
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rtlusb->max_bulk_out_size);
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for (i = 0; i < __RTL_TXQ_NUM; i++) {
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u32 ep_num = rtlusb->ep_map.ep_mapping[i];
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if (!ep_num) {
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RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
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"Invalid endpoint map setting!\n");
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return -EINVAL;
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}
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}
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rtlusb->usb_tx_post_hdl =
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rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
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rtlusb->usb_tx_cleanup =
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rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
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rtlusb->usb_tx_aggregate_hdl =
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(rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
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? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
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: &_none_usb_tx_aggregate_hdl;
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init_usb_anchor(&rtlusb->tx_submitted);
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for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
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skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
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init_usb_anchor(&rtlusb->tx_pending[i]);
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}
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return 0;
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}
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static void _rtl_rx_work(unsigned long param);
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static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
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struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
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rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
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rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
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rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
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rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
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rtlusb->usb_rx_segregate_hdl =
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rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;
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pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
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rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
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init_usb_anchor(&rtlusb->rx_submitted);
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init_usb_anchor(&rtlusb->rx_cleanup_urbs);
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skb_queue_head_init(&rtlusb->rx_queue);
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rtlusb->rx_work_tasklet.func = _rtl_rx_work;
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rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb;
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return 0;
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}
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static int _rtl_usb_init(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
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struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
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int err;
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u8 epidx;
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struct usb_interface *usb_intf = rtlusb->intf;
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u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;
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rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
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for (epidx = 0; epidx < epnums; epidx++) {
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struct usb_endpoint_descriptor *pep_desc;
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pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;
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if (usb_endpoint_dir_in(pep_desc))
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rtlusb->in_ep_nums++;
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else if (usb_endpoint_dir_out(pep_desc))
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rtlusb->out_ep_nums++;
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RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
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"USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
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pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
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pep_desc->bInterval);
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}
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if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num) {
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pr_err("Too few input end points found\n");
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return -EINVAL;
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}
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if (rtlusb->out_ep_nums == 0) {
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pr_err("No output end points found\n");
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return -EINVAL;
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}
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/* usb endpoint mapping */
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err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
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rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
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_rtl_usb_init_tx(hw);
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_rtl_usb_init_rx(hw);
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return err;
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}
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static void rtl_usb_init_sw(struct ieee80211_hw *hw)
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{
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
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rtlhal->hw = hw;
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ppsc->inactiveps = false;
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ppsc->leisure_ps = false;
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ppsc->fwctrl_lps = false;
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ppsc->reg_fwctrl_lps = 3;
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ppsc->reg_max_lps_awakeintvl = 5;
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ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
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/* IBSS */
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mac->beacon_interval = 100;
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/* AMPDU */
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mac->min_space_cfg = 0;
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mac->max_mss_density = 0;
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/* set sane AMPDU defaults */
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mac->current_ampdu_density = 7;
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mac->current_ampdu_factor = 3;
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/* QOS */
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rtlusb->acm_method = EACMWAY2_SW;
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/* IRQ */
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/* HIMR - turn all on */
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rtlusb->irq_mask[0] = 0xFFFFFFFF;
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/* HIMR_EX - turn all on */
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rtlusb->irq_mask[1] = 0xFFFFFFFF;
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rtlusb->disableHWSM = true;
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}
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static void _rtl_rx_completed(struct urb *urb);
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static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb,
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struct urb *urb, gfp_t gfp_mask)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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void *buf;
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buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask,
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&urb->transfer_dma);
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if (!buf) {
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RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
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"Failed to usb_alloc_coherent!!\n");
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return -ENOMEM;
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}
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usb_fill_bulk_urb(urb, rtlusb->udev,
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usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
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buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb);
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urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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return 0;
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}
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static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
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struct sk_buff *skb)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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u8 *rxdesc = skb->data;
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struct ieee80211_hdr *hdr;
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bool unicast = false;
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__le16 fc;
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struct ieee80211_rx_status rx_status = {0};
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struct rtl_stats stats = {
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.signal = 0,
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.rate = 0,
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};
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skb_pull(skb, RTL_RX_DESC_SIZE);
|
|
rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
|
|
skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
|
|
hdr = (struct ieee80211_hdr *)(skb->data);
|
|
fc = hdr->frame_control;
|
|
if (!stats.crc) {
|
|
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
|
|
|
|
if (is_broadcast_ether_addr(hdr->addr1)) {
|
|
/*TODO*/;
|
|
} else if (is_multicast_ether_addr(hdr->addr1)) {
|
|
/*TODO*/
|
|
} else {
|
|
unicast = true;
|
|
rtlpriv->stats.rxbytesunicast += skb->len;
|
|
}
|
|
|
|
if (ieee80211_is_data(fc)) {
|
|
rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
|
|
|
|
if (unicast)
|
|
rtlpriv->link_info.num_rx_inperiod++;
|
|
}
|
|
/* static bcn for roaming */
|
|
rtl_beacon_statistic(hw, skb);
|
|
}
|
|
}
|
|
|
|
static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
u8 *rxdesc = skb->data;
|
|
struct ieee80211_hdr *hdr;
|
|
bool unicast = false;
|
|
__le16 fc;
|
|
struct ieee80211_rx_status rx_status = {0};
|
|
struct rtl_stats stats = {
|
|
.signal = 0,
|
|
.rate = 0,
|
|
};
|
|
|
|
skb_pull(skb, RTL_RX_DESC_SIZE);
|
|
rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
|
|
skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
|
|
hdr = (struct ieee80211_hdr *)(skb->data);
|
|
fc = hdr->frame_control;
|
|
if (!stats.crc) {
|
|
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
|
|
|
|
if (is_broadcast_ether_addr(hdr->addr1)) {
|
|
/*TODO*/;
|
|
} else if (is_multicast_ether_addr(hdr->addr1)) {
|
|
/*TODO*/
|
|
} else {
|
|
unicast = true;
|
|
rtlpriv->stats.rxbytesunicast += skb->len;
|
|
}
|
|
|
|
if (ieee80211_is_data(fc)) {
|
|
rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
|
|
|
|
if (unicast)
|
|
rtlpriv->link_info.num_rx_inperiod++;
|
|
}
|
|
|
|
/* static bcn for roaming */
|
|
rtl_beacon_statistic(hw, skb);
|
|
|
|
if (likely(rtl_action_proc(hw, skb, false)))
|
|
ieee80211_rx(hw, skb);
|
|
else
|
|
dev_kfree_skb_any(skb);
|
|
}
|
|
}
|
|
|
|
static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
struct sk_buff *_skb;
|
|
struct sk_buff_head rx_queue;
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
skb_queue_head_init(&rx_queue);
|
|
if (rtlusb->usb_rx_segregate_hdl)
|
|
rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
|
|
WARN_ON(skb_queue_empty(&rx_queue));
|
|
while (!skb_queue_empty(&rx_queue)) {
|
|
_skb = skb_dequeue(&rx_queue);
|
|
_rtl_usb_rx_process_agg(hw, _skb);
|
|
ieee80211_rx(hw, _skb);
|
|
}
|
|
}
|
|
|
|
#define __RX_SKB_MAX_QUEUED 64
|
|
|
|
static void _rtl_rx_work(unsigned long param)
|
|
{
|
|
struct rtl_usb *rtlusb = (struct rtl_usb *)param;
|
|
struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
|
|
struct sk_buff *skb;
|
|
|
|
while ((skb = skb_dequeue(&rtlusb->rx_queue))) {
|
|
if (unlikely(IS_USB_STOP(rtlusb))) {
|
|
dev_kfree_skb_any(skb);
|
|
continue;
|
|
}
|
|
|
|
if (likely(!rtlusb->usb_rx_segregate_hdl)) {
|
|
_rtl_usb_rx_process_noagg(hw, skb);
|
|
} else {
|
|
/* TO DO */
|
|
_rtl_rx_pre_process(hw, skb);
|
|
pr_err("rx agg not supported\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
|
|
unsigned int len)
|
|
{
|
|
#if NET_IP_ALIGN != 0
|
|
unsigned int padding = 0;
|
|
#endif
|
|
|
|
/* make function no-op when possible */
|
|
if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
|
|
return 0;
|
|
|
|
#if NET_IP_ALIGN != 0
|
|
/* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */
|
|
/* TODO: deduplicate common code, define helper function instead? */
|
|
|
|
if (ieee80211_is_data_qos(hdr->frame_control)) {
|
|
u8 *qc = ieee80211_get_qos_ctl(hdr);
|
|
|
|
padding ^= NET_IP_ALIGN;
|
|
|
|
/* Input might be invalid, avoid accessing memory outside
|
|
* the buffer.
|
|
*/
|
|
if ((unsigned long)qc - (unsigned long)hdr < len &&
|
|
*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
|
|
padding ^= NET_IP_ALIGN;
|
|
}
|
|
|
|
if (ieee80211_has_a4(hdr->frame_control))
|
|
padding ^= NET_IP_ALIGN;
|
|
|
|
return padding;
|
|
#endif
|
|
}
|
|
|
|
#define __RADIO_TAP_SIZE_RSV 32
|
|
|
|
static void _rtl_rx_completed(struct urb *_urb)
|
|
{
|
|
struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context;
|
|
struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
int err = 0;
|
|
|
|
if (unlikely(IS_USB_STOP(rtlusb)))
|
|
goto free;
|
|
|
|
if (likely(0 == _urb->status)) {
|
|
unsigned int padding;
|
|
struct sk_buff *skb;
|
|
unsigned int qlen;
|
|
unsigned int size = _urb->actual_length;
|
|
struct ieee80211_hdr *hdr;
|
|
|
|
if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Too short packet from bulk IN! (len: %d)\n",
|
|
size);
|
|
goto resubmit;
|
|
}
|
|
|
|
qlen = skb_queue_len(&rtlusb->rx_queue);
|
|
if (qlen >= __RX_SKB_MAX_QUEUED) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Pending RX skbuff queue full! (qlen: %d)\n",
|
|
qlen);
|
|
goto resubmit;
|
|
}
|
|
|
|
hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE);
|
|
padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE);
|
|
|
|
skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding);
|
|
if (!skb) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Can't allocate skb for bulk IN!\n");
|
|
goto resubmit;
|
|
}
|
|
|
|
_rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
|
|
|
|
/* Make sure the payload data is 4 byte aligned. */
|
|
skb_reserve(skb, padding);
|
|
|
|
/* reserve some space for mac80211's radiotap */
|
|
skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
|
|
|
|
memcpy(skb_put(skb, size), _urb->transfer_buffer, size);
|
|
|
|
skb_queue_tail(&rtlusb->rx_queue, skb);
|
|
tasklet_schedule(&rtlusb->rx_work_tasklet);
|
|
|
|
goto resubmit;
|
|
}
|
|
|
|
switch (_urb->status) {
|
|
/* disconnect */
|
|
case -ENOENT:
|
|
case -ECONNRESET:
|
|
case -ENODEV:
|
|
case -ESHUTDOWN:
|
|
goto free;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
resubmit:
|
|
usb_anchor_urb(_urb, &rtlusb->rx_submitted);
|
|
err = usb_submit_urb(_urb, GFP_ATOMIC);
|
|
if (unlikely(err)) {
|
|
usb_unanchor_urb(_urb);
|
|
goto free;
|
|
}
|
|
return;
|
|
|
|
free:
|
|
/* On some architectures, usb_free_coherent must not be called from
|
|
* hardirq context. Queue urb to cleanup list.
|
|
*/
|
|
usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs);
|
|
}
|
|
|
|
#undef __RADIO_TAP_SIZE_RSV
|
|
|
|
static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw)
|
|
{
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
struct urb *urb;
|
|
|
|
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
|
|
|
|
tasklet_kill(&rtlusb->rx_work_tasklet);
|
|
skb_queue_purge(&rtlusb->rx_queue);
|
|
|
|
while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
|
|
usb_free_coherent(urb->dev, urb->transfer_buffer_length,
|
|
urb->transfer_buffer, urb->transfer_dma);
|
|
usb_free_urb(urb);
|
|
}
|
|
}
|
|
|
|
static int _rtl_usb_receive(struct ieee80211_hw *hw)
|
|
{
|
|
struct urb *urb;
|
|
int err;
|
|
int i;
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
WARN_ON(0 == rtlusb->rx_urb_num);
|
|
/* 1600 == 1514 + max WLAN header + rtk info */
|
|
WARN_ON(rtlusb->rx_max_size < 1600);
|
|
|
|
for (i = 0; i < rtlusb->rx_urb_num; i++) {
|
|
err = -ENOMEM;
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!urb) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Failed to alloc URB!!\n");
|
|
goto err_out;
|
|
}
|
|
|
|
err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
|
|
if (err < 0) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Failed to prep_rx_urb!!\n");
|
|
usb_free_urb(urb);
|
|
goto err_out;
|
|
}
|
|
|
|
usb_anchor_urb(urb, &rtlusb->rx_submitted);
|
|
err = usb_submit_urb(urb, GFP_KERNEL);
|
|
if (err)
|
|
goto err_out;
|
|
usb_free_urb(urb);
|
|
}
|
|
return 0;
|
|
|
|
err_out:
|
|
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
|
|
_rtl_usb_cleanup_rx(hw);
|
|
return err;
|
|
}
|
|
|
|
static int rtl_usb_start(struct ieee80211_hw *hw)
|
|
{
|
|
int err;
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
err = rtlpriv->cfg->ops->hw_init(hw);
|
|
if (!err) {
|
|
rtl_init_rx_config(hw);
|
|
|
|
/* Enable software */
|
|
SET_USB_START(rtlusb);
|
|
/* should after adapter start and interrupt enable. */
|
|
set_hal_start(rtlhal);
|
|
|
|
/* Start bulk IN */
|
|
err = _rtl_usb_receive(hw);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
/**
|
|
*
|
|
*
|
|
*/
|
|
|
|
/*======================= tx =========================================*/
|
|
static void rtl_usb_cleanup(struct ieee80211_hw *hw)
|
|
{
|
|
u32 i;
|
|
struct sk_buff *_skb;
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
struct ieee80211_tx_info *txinfo;
|
|
|
|
SET_USB_STOP(rtlusb);
|
|
|
|
/* clean up rx stuff. */
|
|
_rtl_usb_cleanup_rx(hw);
|
|
|
|
/* clean up tx stuff */
|
|
for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
|
|
while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
|
|
rtlusb->usb_tx_cleanup(hw, _skb);
|
|
txinfo = IEEE80211_SKB_CB(_skb);
|
|
ieee80211_tx_info_clear_status(txinfo);
|
|
txinfo->flags |= IEEE80211_TX_STAT_ACK;
|
|
ieee80211_tx_status_irqsafe(hw, _skb);
|
|
}
|
|
usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
|
|
}
|
|
usb_kill_anchored_urbs(&rtlusb->tx_submitted);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* We may add some struct into struct rtl_usb later. Do deinit here.
|
|
*
|
|
*/
|
|
static void rtl_usb_deinit(struct ieee80211_hw *hw)
|
|
{
|
|
rtl_usb_cleanup(hw);
|
|
}
|
|
|
|
static void rtl_usb_stop(struct ieee80211_hw *hw)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
/* should after adapter start and interrupt enable. */
|
|
set_hal_stop(rtlhal);
|
|
cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
|
|
/* Enable software */
|
|
SET_USB_STOP(rtlusb);
|
|
rtl_usb_deinit(hw);
|
|
rtlpriv->cfg->ops->hw_disable(hw);
|
|
}
|
|
|
|
static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
|
|
{
|
|
int err;
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
usb_anchor_urb(_urb, &rtlusb->tx_submitted);
|
|
err = usb_submit_urb(_urb, GFP_ATOMIC);
|
|
if (err < 0) {
|
|
struct sk_buff *skb;
|
|
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Failed to submit urb\n");
|
|
usb_unanchor_urb(_urb);
|
|
skb = (struct sk_buff *)_urb->context;
|
|
kfree_skb(skb);
|
|
}
|
|
usb_free_urb(_urb);
|
|
}
|
|
|
|
static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
struct ieee80211_tx_info *txinfo;
|
|
|
|
rtlusb->usb_tx_post_hdl(hw, urb, skb);
|
|
skb_pull(skb, RTL_TX_HEADER_SIZE);
|
|
txinfo = IEEE80211_SKB_CB(skb);
|
|
ieee80211_tx_info_clear_status(txinfo);
|
|
txinfo->flags |= IEEE80211_TX_STAT_ACK;
|
|
|
|
if (urb->status) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Urb has error status 0x%X\n", urb->status);
|
|
goto out;
|
|
}
|
|
/* TODO: statistics */
|
|
out:
|
|
ieee80211_tx_status_irqsafe(hw, skb);
|
|
return urb->status;
|
|
}
|
|
|
|
static void _rtl_tx_complete(struct urb *urb)
|
|
{
|
|
struct sk_buff *skb = (struct sk_buff *)urb->context;
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
|
|
struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
|
|
int err;
|
|
|
|
if (unlikely(IS_USB_STOP(rtlusb)))
|
|
return;
|
|
err = _usb_tx_post(hw, urb, skb);
|
|
if (err) {
|
|
/* Ignore error and keep issuiing other urbs */
|
|
return;
|
|
}
|
|
}
|
|
|
|
static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb, u32 ep_num)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
struct urb *_urb;
|
|
|
|
WARN_ON(NULL == skb);
|
|
_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
if (!_urb) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"Can't allocate URB for bulk out!\n");
|
|
kfree_skb(skb);
|
|
return NULL;
|
|
}
|
|
_rtl_install_trx_info(rtlusb, skb, ep_num);
|
|
usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
|
|
ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
|
|
_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
return _urb;
|
|
}
|
|
|
|
static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
|
|
enum rtl_txq qnum)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
u32 ep_num;
|
|
struct urb *_urb = NULL;
|
|
struct sk_buff *_skb = NULL;
|
|
|
|
WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
|
|
if (unlikely(IS_USB_STOP(rtlusb))) {
|
|
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
|
|
"USB device is stopping...\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
ep_num = rtlusb->ep_map.ep_mapping[qnum];
|
|
_skb = skb;
|
|
_urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
|
|
if (unlikely(!_urb)) {
|
|
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
|
|
"Can't allocate urb. Drop skb!\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
_rtl_submit_tx_urb(hw, _urb);
|
|
}
|
|
|
|
static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw,
|
|
struct ieee80211_sta *sta,
|
|
struct sk_buff *skb,
|
|
u16 hw_queue)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct rtl_tx_desc *pdesc = NULL;
|
|
struct rtl_tcb_desc tcb_desc;
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
|
|
__le16 fc = hdr->frame_control;
|
|
u8 *pda_addr = hdr->addr1;
|
|
/* ssn */
|
|
u8 *qc = NULL;
|
|
u8 tid = 0;
|
|
u16 seq_number = 0;
|
|
|
|
memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
|
|
if (ieee80211_is_auth(fc)) {
|
|
RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
|
|
rtl_ips_nic_on(hw);
|
|
}
|
|
|
|
if (rtlpriv->psc.sw_ps_enabled) {
|
|
if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
|
|
!ieee80211_has_pm(fc))
|
|
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
|
|
}
|
|
|
|
rtl_action_proc(hw, skb, true);
|
|
if (is_multicast_ether_addr(pda_addr))
|
|
rtlpriv->stats.txbytesmulticast += skb->len;
|
|
else if (is_broadcast_ether_addr(pda_addr))
|
|
rtlpriv->stats.txbytesbroadcast += skb->len;
|
|
else
|
|
rtlpriv->stats.txbytesunicast += skb->len;
|
|
if (ieee80211_is_data_qos(fc)) {
|
|
qc = ieee80211_get_qos_ctl(hdr);
|
|
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
|
|
seq_number = (le16_to_cpu(hdr->seq_ctrl) &
|
|
IEEE80211_SCTL_SEQ) >> 4;
|
|
seq_number += 1;
|
|
seq_number <<= 4;
|
|
}
|
|
rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, NULL, info, sta, skb,
|
|
hw_queue, &tcb_desc);
|
|
if (!ieee80211_has_morefrags(hdr->frame_control)) {
|
|
if (qc)
|
|
mac->tids[tid].seq_number = seq_number;
|
|
}
|
|
if (ieee80211_is_data(fc))
|
|
rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
|
|
}
|
|
|
|
static int rtl_usb_tx(struct ieee80211_hw *hw,
|
|
struct ieee80211_sta *sta,
|
|
struct sk_buff *skb,
|
|
struct rtl_tcb_desc *dummy)
|
|
{
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
|
|
__le16 fc = hdr->frame_control;
|
|
u16 hw_queue;
|
|
|
|
if (unlikely(is_hal_stop(rtlhal)))
|
|
goto err_free;
|
|
hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
|
|
_rtl_usb_tx_preprocess(hw, sta, skb, hw_queue);
|
|
_rtl_usb_transmit(hw, skb, hw_queue);
|
|
return NETDEV_TX_OK;
|
|
|
|
err_free:
|
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
|
|
struct ieee80211_sta *sta,
|
|
struct sk_buff *skb)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work)
|
|
{
|
|
struct rtl_works *rtlworks =
|
|
container_of(work, struct rtl_works, fill_h2c_cmd);
|
|
struct ieee80211_hw *hw = rtlworks->hw;
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
|
|
rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask);
|
|
}
|
|
|
|
static struct rtl_intf_ops rtl_usb_ops = {
|
|
.adapter_start = rtl_usb_start,
|
|
.adapter_stop = rtl_usb_stop,
|
|
.adapter_tx = rtl_usb_tx,
|
|
.waitq_insert = rtl_usb_tx_chk_waitq_insert,
|
|
};
|
|
|
|
int rtl_usb_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id,
|
|
struct rtl_hal_cfg *rtl_hal_cfg)
|
|
{
|
|
int err;
|
|
struct ieee80211_hw *hw = NULL;
|
|
struct rtl_priv *rtlpriv = NULL;
|
|
struct usb_device *udev;
|
|
struct rtl_usb_priv *usb_priv;
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
|
|
sizeof(struct rtl_usb_priv), &rtl_ops);
|
|
if (!hw) {
|
|
RT_ASSERT(false, "ieee80211 alloc failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
rtlpriv = hw->priv;
|
|
rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
|
|
GFP_KERNEL);
|
|
if (!rtlpriv->usb_data)
|
|
return -ENOMEM;
|
|
|
|
/* this spin lock must be initialized early */
|
|
spin_lock_init(&rtlpriv->locks.usb_lock);
|
|
INIT_WORK(&rtlpriv->works.fill_h2c_cmd,
|
|
rtl_fill_h2c_cmd_work_callback);
|
|
INIT_WORK(&rtlpriv->works.lps_change_work,
|
|
rtl_lps_change_work_callback);
|
|
|
|
rtlpriv->usb_data_index = 0;
|
|
init_completion(&rtlpriv->firmware_loading_complete);
|
|
SET_IEEE80211_DEV(hw, &intf->dev);
|
|
udev = interface_to_usbdev(intf);
|
|
usb_get_dev(udev);
|
|
usb_priv = rtl_usbpriv(hw);
|
|
memset(usb_priv, 0, sizeof(*usb_priv));
|
|
usb_priv->dev.intf = intf;
|
|
usb_priv->dev.udev = udev;
|
|
usb_set_intfdata(intf, hw);
|
|
/* init cfg & intf_ops */
|
|
rtlpriv->rtlhal.interface = INTF_USB;
|
|
rtlpriv->cfg = rtl_hal_cfg;
|
|
rtlpriv->intf_ops = &rtl_usb_ops;
|
|
rtl_dbgp_flag_init(hw);
|
|
/* Init IO handler */
|
|
_rtl_usb_io_handler_init(&udev->dev, hw);
|
|
rtlpriv->cfg->ops->read_chip_version(hw);
|
|
/*like read eeprom and so on */
|
|
rtlpriv->cfg->ops->read_eeprom_info(hw);
|
|
err = _rtl_usb_init(hw);
|
|
if (err)
|
|
goto error_out;
|
|
rtl_usb_init_sw(hw);
|
|
/* Init mac80211 sw */
|
|
err = rtl_init_core(hw);
|
|
if (err) {
|
|
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
|
|
"Can't allocate sw for mac80211\n");
|
|
goto error_out;
|
|
}
|
|
if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
|
|
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
|
|
goto error_out;
|
|
}
|
|
rtlpriv->cfg->ops->init_sw_leds(hw);
|
|
|
|
return 0;
|
|
error_out:
|
|
rtl_deinit_core(hw);
|
|
_rtl_usb_io_handler_release(hw);
|
|
usb_put_dev(udev);
|
|
complete(&rtlpriv->firmware_loading_complete);
|
|
return -ENODEV;
|
|
}
|
|
EXPORT_SYMBOL(rtl_usb_probe);
|
|
|
|
void rtl_usb_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct ieee80211_hw *hw = usb_get_intfdata(intf);
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
|
|
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
|
|
|
|
if (unlikely(!rtlpriv))
|
|
return;
|
|
|
|
/* just in case driver is removed before firmware callback */
|
|
wait_for_completion(&rtlpriv->firmware_loading_complete);
|
|
/*ieee80211_unregister_hw will call ops_stop */
|
|
if (rtlmac->mac80211_registered == 1) {
|
|
ieee80211_unregister_hw(hw);
|
|
rtlmac->mac80211_registered = 0;
|
|
} else {
|
|
rtl_deinit_deferred_work(hw);
|
|
rtlpriv->intf_ops->adapter_stop(hw);
|
|
}
|
|
/*deinit rfkill */
|
|
/* rtl_deinit_rfkill(hw); */
|
|
rtl_usb_deinit(hw);
|
|
rtl_deinit_core(hw);
|
|
kfree(rtlpriv->usb_data);
|
|
rtlpriv->cfg->ops->deinit_sw_leds(hw);
|
|
rtlpriv->cfg->ops->deinit_sw_vars(hw);
|
|
_rtl_usb_io_handler_release(hw);
|
|
usb_put_dev(rtlusb->udev);
|
|
usb_set_intfdata(intf, NULL);
|
|
ieee80211_free_hw(hw);
|
|
}
|
|
EXPORT_SYMBOL(rtl_usb_disconnect);
|
|
|
|
int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
|
|
{
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(rtl_usb_suspend);
|
|
|
|
int rtl_usb_resume(struct usb_interface *pusb_intf)
|
|
{
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(rtl_usb_resume);
|