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/******************************************************************************
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* Copyright(c) 2009-2011 Realtek Corporation. All rights reserved.
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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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* 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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* 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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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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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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#include <linux/usb.h>
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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 REALTEK_USB_VENQT_MAX_BUF_SIZE 254
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static void usbctrl_async_callback(struct urb *urb)
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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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struct usb_ctrlrequest *dr;
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struct rtl819x_async_write_data {
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u8 data[REALTEK_USB_VENQT_MAX_BUF_SIZE];
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struct usb_ctrlrequest dr;
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pipe = usb_sndctrlpipe(udev, 0); /* write_out */
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reqtype = REALTEK_USB_VENQT_WRITE;
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buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
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urb = usb_alloc_urb(0, GFP_ATOMIC);
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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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memcpy(buf, pdata, len);
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usb_fill_control_urb(urb, udev, pipe,
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(unsigned char *)dr, buf, len,
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usbctrl_async_callback, buf);
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rc = usb_submit_urb(urb, GFP_ATOMIC);
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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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pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
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reqtype = REALTEK_USB_VENQT_READ;
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status = usb_control_msg(udev, pipe, request, reqtype, value, index,
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pdata, len, 0); /* max. timeout */
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printk(KERN_ERR "reg 0x%x, usbctrl_vendorreq TimeOut! "
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"status:0x%x value=0x%x\n", value, status,
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static u32 _usb_read_sync(struct usb_device *udev, u32 addr, u16 len)
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data = kmalloc(sizeof(u32), GFP_KERNEL);
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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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_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
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static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
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struct device *dev = rtlpriv->io.dev;
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return (u8)_usb_read_sync(to_usb_device(dev), addr, 1);
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static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
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struct device *dev = rtlpriv->io.dev;
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return (u16)_usb_read_sync(to_usb_device(dev), addr, 2);
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static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
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struct device *dev = rtlpriv->io.dev;
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return _usb_read_sync(to_usb_device(dev), addr, 4);
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static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
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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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_usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
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static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
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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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static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
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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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static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
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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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static int _usb_nbytes_read_write(struct usb_device *udev, bool read, u32 addr,
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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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status = _usbctrl_vendorreq_sync_read(udev, request, wvalue,
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status = _usbctrl_vendorreq_async_write(udev, request, wvalue,
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static int _usb_readN_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len,
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struct device *dev = rtlpriv->io.dev;
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return _usb_nbytes_read_write(to_usb_device(dev), true, addr, len,
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static int _usb_writeN_async(struct rtl_priv *rtlpriv, u32 addr, u16 len,
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struct device *dev = rtlpriv->io.dev;
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return _usb_nbytes_read_write(to_usb_device(dev), false, addr, len,
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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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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.writeN_async = _usb_writeN_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.readN_sync = _usb_readN_sync;
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static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
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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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* Default aggregation handler. Do nothing and just return the oldest skb.
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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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return skb_dequeue(list);
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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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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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RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
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("Invalid endpoint map setting!\n"));
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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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static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
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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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printk(KERN_INFO "rtl8192cu: 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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static int _rtl_usb_init(struct ieee80211_hw *hw)
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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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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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if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num)
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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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static int _rtl_usb_init_sw(struct ieee80211_hw *hw)
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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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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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mac->beacon_interval = 100;
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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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rtlusb->acm_method = eAcmWay2_SW;
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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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#define __RADIO_TAP_SIZE_RSV 32
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static void _rtl_rx_completed(struct urb *urb);
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static struct sk_buff *_rtl_prep_rx_urb(struct ieee80211_hw *hw,
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struct rtl_usb *rtlusb,
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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skb = __dev_alloc_skb((rtlusb->rx_max_size + __RADIO_TAP_SIZE_RSV),
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RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
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("Failed to __dev_alloc_skb!!\n"))
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return ERR_PTR(-ENOMEM);
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/* reserve some space for mac80211's radiotap */
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skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
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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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skb->data, min(skb_tailroom(skb),
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(int)rtlusb->rx_max_size),
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_rtl_rx_completed, skb);
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_rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
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#undef __RADIO_TAP_SIZE_RSV
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static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
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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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struct ieee80211_rx_status rx_status = {0};
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struct rtl_stats stats = {
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skb_pull(skb, RTL_RX_DESC_SIZE);
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rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
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skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
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hdr = (struct ieee80211_hdr *)(skb->data);
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fc = hdr->frame_control;
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memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
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if (is_broadcast_ether_addr(hdr->addr1)) {
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} else if (is_multicast_ether_addr(hdr->addr1)) {
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rtlpriv->stats.rxbytesunicast += skb->len;
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rtl_is_special_data(hw, skb, false);
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if (ieee80211_is_data(fc)) {
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rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
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rtlpriv->link_info.num_rx_inperiod++;
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static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
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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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struct ieee80211_rx_status rx_status = {0};
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struct rtl_stats stats = {
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skb_pull(skb, RTL_RX_DESC_SIZE);
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rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
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skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
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hdr = (struct ieee80211_hdr *)(skb->data);
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fc = hdr->frame_control;
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memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
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if (is_broadcast_ether_addr(hdr->addr1)) {
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} else if (is_multicast_ether_addr(hdr->addr1)) {
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rtlpriv->stats.rxbytesunicast += skb->len;
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rtl_is_special_data(hw, skb, false);
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if (ieee80211_is_data(fc)) {
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rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
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rtlpriv->link_info.num_rx_inperiod++;
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if (likely(rtl_action_proc(hw, skb, false))) {
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struct sk_buff *uskb = NULL;
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uskb = dev_alloc_skb(skb->len + 128);
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memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status,
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pdata = (u8 *)skb_put(uskb, skb->len);
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memcpy(pdata, skb->data, skb->len);
525
dev_kfree_skb_any(skb);
526
ieee80211_rx_irqsafe(hw, uskb);
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dev_kfree_skb_any(skb);
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static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
535
struct sk_buff *_skb;
536
struct sk_buff_head rx_queue;
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struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
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skb_queue_head_init(&rx_queue);
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if (rtlusb->usb_rx_segregate_hdl)
541
rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
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WARN_ON(skb_queue_empty(&rx_queue));
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while (!skb_queue_empty(&rx_queue)) {
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_skb = skb_dequeue(&rx_queue);
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_rtl_usb_rx_process_agg(hw, skb);
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ieee80211_rx_irqsafe(hw, skb);
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static void _rtl_rx_completed(struct urb *_urb)
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struct sk_buff *skb = (struct sk_buff *)_urb->context;
553
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
554
struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
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struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
556
struct rtl_priv *rtlpriv = rtl_priv(hw);
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if (unlikely(IS_USB_STOP(rtlusb)))
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if (likely(0 == _urb->status)) {
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/* If this code were moved to work queue, would CPU
564
* utilization be improved? NOTE: We shall allocate another skb
565
* and reuse the original one.
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skb_put(skb, _urb->actual_length);
569
if (likely(!rtlusb->usb_rx_segregate_hdl)) {
570
struct sk_buff *_skb;
571
_rtl_usb_rx_process_noagg(hw, skb);
572
_skb = _rtl_prep_rx_urb(hw, rtlusb, _urb, GFP_ATOMIC);
575
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
576
("Can't allocate skb for bulk IN!\n"));
582
_rtl_rx_pre_process(hw, skb);
583
printk(KERN_ERR "rtlwifi: rx agg not supported\n");
588
switch (_urb->status) {
600
skb_reset_tail_pointer(skb);
603
usb_anchor_urb(_urb, &rtlusb->rx_submitted);
604
err = usb_submit_urb(_urb, GFP_ATOMIC);
606
usb_unanchor_urb(_urb);
612
dev_kfree_skb_irq(skb);
615
static int _rtl_usb_receive(struct ieee80211_hw *hw)
621
struct rtl_priv *rtlpriv = rtl_priv(hw);
622
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
624
WARN_ON(0 == rtlusb->rx_urb_num);
625
/* 1600 == 1514 + max WLAN header + rtk info */
626
WARN_ON(rtlusb->rx_max_size < 1600);
628
for (i = 0; i < rtlusb->rx_urb_num; i++) {
630
urb = usb_alloc_urb(0, GFP_KERNEL);
632
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
633
("Failed to alloc URB!!\n"))
637
skb = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
639
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
640
("Failed to prep_rx_urb!!\n"))
645
usb_anchor_urb(urb, &rtlusb->rx_submitted);
646
err = usb_submit_urb(urb, GFP_KERNEL);
654
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
658
static int rtl_usb_start(struct ieee80211_hw *hw)
661
struct rtl_priv *rtlpriv = rtl_priv(hw);
662
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
663
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
665
err = rtlpriv->cfg->ops->hw_init(hw);
666
rtl_init_rx_config(hw);
668
/* Enable software */
669
SET_USB_START(rtlusb);
670
/* should after adapter start and interrupt enable. */
671
set_hal_start(rtlhal);
674
_rtl_usb_receive(hw);
683
/*======================= tx =========================================*/
684
static void rtl_usb_cleanup(struct ieee80211_hw *hw)
687
struct sk_buff *_skb;
688
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
689
struct ieee80211_tx_info *txinfo;
691
SET_USB_STOP(rtlusb);
693
/* clean up rx stuff. */
694
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
696
/* clean up tx stuff */
697
for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
698
while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
699
rtlusb->usb_tx_cleanup(hw, _skb);
700
txinfo = IEEE80211_SKB_CB(_skb);
701
ieee80211_tx_info_clear_status(txinfo);
702
txinfo->flags |= IEEE80211_TX_STAT_ACK;
703
ieee80211_tx_status_irqsafe(hw, _skb);
705
usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
707
usb_kill_anchored_urbs(&rtlusb->tx_submitted);
712
* We may add some struct into struct rtl_usb later. Do deinit here.
715
static void rtl_usb_deinit(struct ieee80211_hw *hw)
720
static void rtl_usb_stop(struct ieee80211_hw *hw)
722
struct rtl_priv *rtlpriv = rtl_priv(hw);
723
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
724
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
726
/* should after adapter start and interrupt enable. */
727
set_hal_stop(rtlhal);
728
/* Enable software */
729
SET_USB_STOP(rtlusb);
731
rtlpriv->cfg->ops->hw_disable(hw);
734
static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
737
struct rtl_priv *rtlpriv = rtl_priv(hw);
738
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
740
usb_anchor_urb(_urb, &rtlusb->tx_submitted);
741
err = usb_submit_urb(_urb, GFP_ATOMIC);
745
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
746
("Failed to submit urb.\n"));
747
usb_unanchor_urb(_urb);
748
skb = (struct sk_buff *)_urb->context;
754
static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
757
struct rtl_priv *rtlpriv = rtl_priv(hw);
758
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
759
struct ieee80211_tx_info *txinfo;
761
rtlusb->usb_tx_post_hdl(hw, urb, skb);
762
skb_pull(skb, RTL_TX_HEADER_SIZE);
763
txinfo = IEEE80211_SKB_CB(skb);
764
ieee80211_tx_info_clear_status(txinfo);
765
txinfo->flags |= IEEE80211_TX_STAT_ACK;
768
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
769
("Urb has error status 0x%X\n", urb->status));
772
/* TODO: statistics */
774
ieee80211_tx_status_irqsafe(hw, skb);
778
static void _rtl_tx_complete(struct urb *urb)
780
struct sk_buff *skb = (struct sk_buff *)urb->context;
781
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
782
struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
783
struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
786
if (unlikely(IS_USB_STOP(rtlusb)))
788
err = _usb_tx_post(hw, urb, skb);
790
/* Ignore error and keep issuiing other urbs */
795
static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
796
struct sk_buff *skb, u32 ep_num)
798
struct rtl_priv *rtlpriv = rtl_priv(hw);
799
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
802
WARN_ON(NULL == skb);
803
_urb = usb_alloc_urb(0, GFP_ATOMIC);
805
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
806
("Can't allocate URB for bulk out!\n"));
810
_rtl_install_trx_info(rtlusb, skb, ep_num);
811
usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
812
ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
813
_urb->transfer_flags |= URB_ZERO_PACKET;
817
static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
820
struct rtl_priv *rtlpriv = rtl_priv(hw);
821
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
823
struct urb *_urb = NULL;
824
struct sk_buff *_skb = NULL;
825
struct sk_buff_head *skb_list;
826
struct usb_anchor *urb_list;
828
WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
829
if (unlikely(IS_USB_STOP(rtlusb))) {
830
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
831
("USB device is stopping...\n"));
835
ep_num = rtlusb->ep_map.ep_mapping[qnum];
836
skb_list = &rtlusb->tx_skb_queue[ep_num];
838
_urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
839
if (unlikely(!_urb)) {
840
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
841
("Can't allocate urb. Drop skb!\n"));
844
urb_list = &rtlusb->tx_pending[ep_num];
845
_rtl_submit_tx_urb(hw, _urb);
848
static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, struct sk_buff *skb,
851
struct rtl_priv *rtlpriv = rtl_priv(hw);
852
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
853
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
854
struct rtl_tx_desc *pdesc = NULL;
855
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
856
__le16 fc = hdr->frame_control;
857
u8 *pda_addr = hdr->addr1;
863
if (ieee80211_is_mgmt(fc))
864
rtl_tx_mgmt_proc(hw, skb);
865
rtl_action_proc(hw, skb, true);
866
if (is_multicast_ether_addr(pda_addr))
867
rtlpriv->stats.txbytesmulticast += skb->len;
868
else if (is_broadcast_ether_addr(pda_addr))
869
rtlpriv->stats.txbytesbroadcast += skb->len;
871
rtlpriv->stats.txbytesunicast += skb->len;
872
if (ieee80211_is_data_qos(fc)) {
873
qc = ieee80211_get_qos_ctl(hdr);
874
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
875
seq_number = (le16_to_cpu(hdr->seq_ctrl) &
876
IEEE80211_SCTL_SEQ) >> 4;
880
rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, skb,
882
if (!ieee80211_has_morefrags(hdr->frame_control)) {
884
mac->tids[tid].seq_number = seq_number;
886
if (ieee80211_is_data(fc))
887
rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
890
static int rtl_usb_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
892
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
893
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
894
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
895
__le16 fc = hdr->frame_control;
898
if (unlikely(is_hal_stop(rtlhal)))
900
hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
901
_rtl_usb_tx_preprocess(hw, skb, hw_queue);
902
_rtl_usb_transmit(hw, skb, hw_queue);
906
dev_kfree_skb_any(skb);
910
static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
916
static struct rtl_intf_ops rtl_usb_ops = {
917
.adapter_start = rtl_usb_start,
918
.adapter_stop = rtl_usb_stop,
919
.adapter_tx = rtl_usb_tx,
920
.waitq_insert = rtl_usb_tx_chk_waitq_insert,
923
int __devinit rtl_usb_probe(struct usb_interface *intf,
924
const struct usb_device_id *id)
927
struct ieee80211_hw *hw = NULL;
928
struct rtl_priv *rtlpriv = NULL;
929
struct usb_device *udev;
930
struct rtl_usb_priv *usb_priv;
932
hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
933
sizeof(struct rtl_usb_priv), &rtl_ops);
935
RT_ASSERT(false, ("%s : ieee80211 alloc failed\n", __func__));
939
SET_IEEE80211_DEV(hw, &intf->dev);
940
udev = interface_to_usbdev(intf);
942
usb_priv = rtl_usbpriv(hw);
943
memset(usb_priv, 0, sizeof(*usb_priv));
944
usb_priv->dev.intf = intf;
945
usb_priv->dev.udev = udev;
946
usb_set_intfdata(intf, hw);
947
/* init cfg & intf_ops */
948
rtlpriv->rtlhal.interface = INTF_USB;
949
rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_info);
950
rtlpriv->intf_ops = &rtl_usb_ops;
951
rtl_dbgp_flag_init(hw);
952
/* Init IO handler */
953
_rtl_usb_io_handler_init(&udev->dev, hw);
954
rtlpriv->cfg->ops->read_chip_version(hw);
955
/*like read eeprom and so on */
956
rtlpriv->cfg->ops->read_eeprom_info(hw);
957
if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
958
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
959
("Can't init_sw_vars.\n"));
962
rtlpriv->cfg->ops->init_sw_leds(hw);
963
err = _rtl_usb_init(hw);
964
err = _rtl_usb_init_sw(hw);
965
/* Init mac80211 sw */
966
err = rtl_init_core(hw);
968
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
969
("Can't allocate sw for mac80211.\n"));
974
/* rtl_init_rfkill(hw); */
976
err = ieee80211_register_hw(hw);
978
RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
979
("Can't register mac80211 hw.\n"));
982
rtlpriv->mac80211.mac80211_registered = 1;
984
set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
988
_rtl_usb_io_handler_release(hw);
989
ieee80211_free_hw(hw);
993
EXPORT_SYMBOL(rtl_usb_probe);
995
void rtl_usb_disconnect(struct usb_interface *intf)
997
struct ieee80211_hw *hw = usb_get_intfdata(intf);
998
struct rtl_priv *rtlpriv = rtl_priv(hw);
999
struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1000
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
1002
if (unlikely(!rtlpriv))
1004
/*ieee80211_unregister_hw will call ops_stop */
1005
if (rtlmac->mac80211_registered == 1) {
1006
ieee80211_unregister_hw(hw);
1007
rtlmac->mac80211_registered = 0;
1009
rtl_deinit_deferred_work(hw);
1010
rtlpriv->intf_ops->adapter_stop(hw);
1013
/* rtl_deinit_rfkill(hw); */
1015
rtl_deinit_core(hw);
1016
rtlpriv->cfg->ops->deinit_sw_leds(hw);
1017
rtlpriv->cfg->ops->deinit_sw_vars(hw);
1018
_rtl_usb_io_handler_release(hw);
1019
usb_put_dev(rtlusb->udev);
1020
usb_set_intfdata(intf, NULL);
1021
ieee80211_free_hw(hw);
1023
EXPORT_SYMBOL(rtl_usb_disconnect);
1025
int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
1029
EXPORT_SYMBOL(rtl_usb_suspend);
1031
int rtl_usb_resume(struct usb_interface *pusb_intf)
1035
EXPORT_SYMBOL(rtl_usb_resume);