Signed-off-by: Larry Finger <[email protected]>
---
V2 - incorporate the comments by Stanislaw Gruszka.
Index: wireless-testing/drivers/net/wireless/rtlwifi/Makefile
===================================================================
--- wireless-testing.orig/drivers/net/wireless/rtlwifi/Makefile
+++ wireless-testing/drivers/net/wireless/rtlwifi/Makefile
@@ -8,6 +8,7 @@ rtlwifi-objs := \
pci.o \
ps.o \
rc.o \
- regd.o
+ regd.o \
+ usb.o
obj-$(CONFIG_RTL8192CE) += rtl8192ce/
Index: wireless-testing/drivers/net/wireless/rtlwifi/usb.c
===================================================================
--- /dev/null
+++ wireless-testing/drivers/net/wireless/rtlwifi/usb.c
@@ -0,0 +1,1065 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2011 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
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <[email protected]>
+ * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
+ * Hsinchu 300, Taiwan.
+ *
+ *****************************************************************************/
+#include <linux/usb.h>
+#include "core.h"
+#include "wifi.h"
+#include "usb.h"
+#include "base.h"
+#include "ps.h"
+
+#define REALTEK_USB_VENQT_READ 0xC0
+#define REALTEK_USB_VENQT_WRITE 0x40
+#define REALTEK_USB_VENQT_CMD_REQ 0x05
+#define REALTEK_USB_VENQT_CMD_IDX 0x00
+
+#define REALTEK_USB_VENQT_MAX_BUF_SIZE 254
+
+enum {
+ VENDOR_WRITE = 0x00,
+ VENDOR_READ = 0x01,
+};
+
+static void usbctrl_async_callback(struct urb *urb)
+{
+ if (urb)
+ kfree(urb->context);
+}
+
+static int _usbctrl_vendorreq_async(struct usb_device *udev, u8 request,
+ u16 value, u16 index, void *pdata,
+ u16 len, u8 requesttype)
+{
+ int rc;
+ unsigned int pipe;
+ u8 reqtype;
+ struct usb_ctrlrequest *dr;
+ struct urb *urb;
+ struct rtl819x_async_write_data {
+ u8 data[REALTEK_USB_VENQT_MAX_BUF_SIZE];
+ struct usb_ctrlrequest dr;
+ } *buf;
+
+ if (requesttype == VENDOR_READ) {
+ pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
+ reqtype = REALTEK_USB_VENQT_READ;
+ } else {
+ pipe = usb_sndctrlpipe(udev, 0); /* write_out */
+ reqtype = REALTEK_USB_VENQT_WRITE;
+ }
+
+ buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
+ if (!buf)
+ return -ENOMEM;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ dr = &buf->dr;
+
+ dr->bRequestType = reqtype;
+ dr->bRequest = request;
+ dr->wValue = cpu_to_le16(value);
+ dr->wIndex = cpu_to_le16(index);
+ dr->wLength = cpu_to_le16(len);
+ memcpy(buf, pdata, len);
+ usb_fill_control_urb(urb, udev, pipe,
+ (unsigned char *)dr, buf, len,
+ usbctrl_async_callback, buf);
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc < 0)
+ kfree(buf);
+ usb_free_urb(urb);
+ return rc;
+}
+
+static int _usbctrl_vendorreq_sync(struct usb_device *udev, u8 request,
+ u16 value, u16 index, void *pdata,
+ u16 len, u8 requesttype)
+{
+ unsigned int pipe;
+ int status;
+ u8 reqtype;
+
+ if (requesttype == VENDOR_READ) {
+ pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
+ reqtype = REALTEK_USB_VENQT_READ;
+ } else {
+ pipe = usb_sndctrlpipe(udev, 0); /* write_out */
+ reqtype = REALTEK_USB_VENQT_WRITE;
+ }
+
+ status = usb_control_msg(udev, pipe, request, reqtype, value, index,
+ pdata, len, 0); /* max. timeout */
+
+ if (status < 0)
+ printk(KERN_ERR "reg 0x%x, usbctrl_vendorreq TimeOut! "
+ "status:0x%x value=0x%x\n", value, status,
+ *(u32 *)pdata);
+ return status;
+}
+
+static u32 _usb_read_sync(struct usb_device *udev, u32 addr, u16 len)
+{
+ u8 request;
+ u8 requesttype;
+ u16 wvalue;
+ u16 index;
+ u32 *data;
+ u32 ret;
+
+ data = kmalloc(sizeof(u32), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ requesttype = VENDOR_READ; /* read_in */
+ request = REALTEK_USB_VENQT_CMD_REQ;
+ index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
+
+ wvalue = (u16)(addr&0x0000ffff);
+ _usbctrl_vendorreq_sync(udev, request, wvalue, index, data, len,
+ requesttype);
+ ret = le32_to_cpu(*data);
+ kfree(data);
+ return ret;
+}
+
+static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ return (u8)_usb_read_sync(to_usb_device(dev), addr, 1);
+}
+
+static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ return (u16)_usb_read_sync(to_usb_device(dev), addr, 2);
+}
+
+static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ return _usb_read_sync(to_usb_device(dev), addr, 4);
+}
+
+static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
+ u16 len)
+{
+ u8 request;
+ u8 requesttype;
+ u16 wvalue;
+ u16 index;
+ u32 data;
+
+ requesttype = VENDOR_WRITE; /* write_out */
+ request = REALTEK_USB_VENQT_CMD_REQ;
+ index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
+ wvalue = (u16)(addr&0x0000ffff);
+ data = cpu_to_le32(val);
+ _usbctrl_vendorreq_async(udev, request, wvalue, index, &data,
+ len, requesttype);
+}
+
+static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ _usb_write_async(to_usb_device(dev), addr, val, 1);
+}
+
+static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ _usb_write_async(to_usb_device(dev), addr, val, 2);
+}
+
+static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ _usb_write_async(to_usb_device(dev), addr, val, 4);
+}
+
+static int _usb_nbytes_read_write(struct usb_device *udev, bool read, u32 addr,
+ u16 len, u8 *pdata)
+{
+ int status;
+ u8 request;
+ u8 requesttype;
+ u16 wvalue;
+ u16 index;
+
+ requesttype = (read) ? VENDOR_READ : VENDOR_WRITE; /* read_in */
+ request = REALTEK_USB_VENQT_CMD_REQ;
+ index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
+ wvalue = (u16)(addr&0x0000ffff);
+ if (read)
+ status = _usbctrl_vendorreq_sync(udev, request, wvalue, index,
+ pdata, len, requesttype);
+ else
+ status = _usbctrl_vendorreq_async(udev, request, wvalue,
+ index, pdata, len,
+ requesttype);
+ return status;
+}
+
+static int _usb_readN_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len,
+ u8 *pdata)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ return _usb_nbytes_read_write(to_usb_device(dev), true, addr, len,
+ pdata);
+}
+
+static int _usb_writeN_async(struct rtl_priv *rtlpriv, u32 addr, u16 len,
+ u8 *pdata)
+{
+ struct device *dev = rtlpriv->io.dev;
+
+ return _usb_nbytes_read_write(to_usb_device(dev), false, addr, len,
+ pdata);
+}
+
+static void _rtl_usb_io_handler_init(struct device *dev,
+ struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+ rtlpriv->io.dev = dev;
+ mutex_init(&rtlpriv->io.bb_mutex);
+ rtlpriv->io.write8_async = _usb_write8_async;
+ rtlpriv->io.write16_async = _usb_write16_async;
+ rtlpriv->io.write32_async = _usb_write32_async;
+ rtlpriv->io.writeN_async = _usb_writeN_async;
+ rtlpriv->io.read8_sync = _usb_read8_sync;
+ rtlpriv->io.read16_sync = _usb_read16_sync;
+ rtlpriv->io.read32_sync = _usb_read32_sync;
+ rtlpriv->io.readN_sync = _usb_readN_sync;
+}
+
+static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+ if (&rtlpriv->io)
+ mutex_destroy(&rtlpriv->io.bb_mutex);
+}
+
+/**
+ *
+ * Default aggregation handler. Do nothing and just return the oldest skb.
+ */
+static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
+ struct sk_buff_head *list)
+{
+ return skb_dequeue(list);
+}
+
+#define IS_HIGH_SPEED_USB(udev) \
+ ((USB_SPEED_HIGH == (udev)->speed) ? true : false)
+
+static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
+{
+ u32 i;
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+
+ rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
+ ? USB_HIGH_SPEED_BULK_SIZE
+ : USB_FULL_SPEED_BULK_SIZE;
+
+ RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("USB Max Bulk-out Size=%d\n",
+ rtlusb->max_bulk_out_size));
+
+ for (i = 0; i < __RTL_TXQ_NUM; i++) {
+ u32 ep_num = rtlusb->ep_map.ep_mapping[i];
+ if (!ep_num) {
+ RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+ ("Invalid endpoint map setting!\n"));
+ return -EINVAL;
+ }
+ }
+
+ rtlusb->usb_tx_post_hdl =
+ rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
+ rtlusb->usb_tx_cleanup =
+ rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
+ rtlusb->usb_tx_aggregate_hdl =
+ (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
+ ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
+ : &_none_usb_tx_aggregate_hdl;
+
+ init_usb_anchor(&rtlusb->tx_submitted);
+ for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
+ skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
+ init_usb_anchor(&rtlusb->tx_pending[i]);
+ }
+ return 0;
+}
+
+static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
+ struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
+
+ rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
+ rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
+ rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
+ rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
+ rtlusb->usb_rx_segregate_hdl =
+ rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;
+
+ printk(KERN_INFO "rtl8192cu: rx_max_size %d, rx_urb_num %d, in_ep %d\n",
+ rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
+ init_usb_anchor(&rtlusb->rx_submitted);
+ return 0;
+}
+
+static int _rtl_usb_init(struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
+ struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
+ int err;
+ u8 epidx;
+ struct usb_interface *usb_intf = rtlusb->intf;
+ u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;
+
+ rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
+ for (epidx = 0; epidx < epnums; epidx++) {
+ struct usb_endpoint_descriptor *pep_desc;
+ pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;
+
+ if (usb_endpoint_dir_in(pep_desc))
+ rtlusb->in_ep_nums++;
+ else if (usb_endpoint_dir_out(pep_desc))
+ rtlusb->out_ep_nums++;
+
+ RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+ ("USB EP(0x%02x), MaxPacketSize=%d ,Interval=%d.\n",
+ pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
+ pep_desc->bInterval));
+ }
+ if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num)
+ return -EINVAL ;
+
+ /* usb endpoint mapping */
+ err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
+ rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
+ _rtl_usb_init_tx(hw);
+ _rtl_usb_init_rx(hw);
+ return err;
+}
+
+static int _rtl_usb_init_sw(struct ieee80211_hw *hw)
+{
+ struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+ struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+ struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
+ struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+
+ rtlhal->hw = hw;
+ ppsc->b_inactiveps = false;
+ ppsc->b_leisure_ps = false;
+ ppsc->b_fwctrl_lps = false;
+ ppsc->b_reg_fwctrl_lps = 3;
+ ppsc->reg_max_lps_awakeintvl = 5;
+ ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
+
+ /* IBSS */
+ mac->beacon_interval = 100;
+
+ /* AMPDU */
+ mac->min_space_cfg = 0;
+ mac->max_mss_density = 0;
+
+ /* set sane AMPDU defaults */
+ mac->current_ampdu_density = 7;
+ mac->current_ampdu_factor = 3;
+
+ /* QOS */
+ rtlusb->acm_method = eAcmWay2_SW;
+
+ /* IRQ */
+ /* HIMR - turn all on */
+ rtlusb->irq_mask[0] = 0xFFFFFFFF;
+ /* HIMR_EX - turn all on */
+ rtlusb->irq_mask[1] = 0xFFFFFFFF;
+ rtlusb->disableHWSM = true;
+ return 0;
+}
+
+#define __RADIO_TAP_SIZE_RSV 32
+
+static void _rtl_rx_completed(struct urb *urb);
+
+static struct sk_buff *_rtl_prep_rx_urb(struct ieee80211_hw *hw,
+ struct rtl_usb *rtlusb,
+ struct urb *urb,
+ gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+ skb = __dev_alloc_skb((rtlusb->rx_max_size + __RADIO_TAP_SIZE_RSV),
+ gfp_mask);
+ if (!skb) {
+ RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
+ ("Failed to __dev_alloc_skb!!\n"))
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* reserve some space for mac80211's radiotap */
+ skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
+ usb_fill_bulk_urb(urb, rtlusb->udev,
+ usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
+ skb->data, min(skb_tailroom(skb),
+ (int)rtlusb->rx_max_size),
+ _rtl_rx_completed, skb);
+
+ _rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
+ return skb;
+}
+
+#undef __RADIO_TAP_SIZE_RSV
+
+static void _rtl_usb_rx_process_agg(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;
+ u16 fc;
+ struct ieee80211_rx_status rx_status = {0};
+ struct rtl_stats stats = {
+ .signal = 0,
+ .noise = -98,
+ .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 = le16_to_cpu(hdr->frame_control);
+ if (!stats.b_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;
+ }
+
+ rtl_is_special_data(hw, skb, false);
+
+ if (ieee80211_is_data(fc)) {
+ rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
+
+ if (unicast)
+ rtlpriv->link_info.num_rx_inperiod++;
+ }
+ }
+}
+
+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;
+ u16 fc;
+ struct ieee80211_rx_status rx_status = {0};
+ struct rtl_stats stats = {
+ .signal = 0,
+ .noise = -98,
+ .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 = le16_to_cpu(hdr->frame_control);
+ if (!stats.b_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;
+ }
+
+ rtl_is_special_data(hw, skb, false);
+
+ if (ieee80211_is_data(fc)) {
+ rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
+
+ if (unicast)
+ rtlpriv->link_info.num_rx_inperiod++;
+ }
+ if (likely(rtl_action_proc(hw, skb, false))) {
+ struct sk_buff *uskb = NULL;
+ u8 *pdata;
+
+ uskb = dev_alloc_skb(skb->len + 128);
+ memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status,
+ sizeof(rx_status));
+ pdata = (u8 *)skb_put(uskb, skb->len);
+ memcpy(pdata, skb->data, skb->len);
+ dev_kfree_skb_any(skb);
+ ieee80211_rx_irqsafe(hw, uskb);
+ } 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_irqsafe(hw, skb);
+ }
+}
+
+static void _rtl_rx_completed(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);
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ int err = 0;
+
+ /* TODO: check */
+ if (unlikely(IS_USB_STOP(rtlusb)))
+ goto free;
+
+ if (likely(0 == _urb->status)) {
+ /* TODO: Move these code to work queue to improve CPU
+ * utilization! NOTE: We shall allocate another skb
+ * and reuse the original one.
+ */
+ skb_put(skb, _urb->actual_length);
+
+ if (likely(!rtlusb->usb_rx_segregate_hdl)) {
+ struct sk_buff *_skb;
+ _rtl_usb_rx_process_noagg(hw, skb);
+ _skb = _rtl_prep_rx_urb(hw, rtlusb, _urb, GFP_ATOMIC);
+ if (IS_ERR(_skb)) {
+ err = PTR_ERR(_skb);
+ RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
+ ("Can't allocate skb for bulk IN!\n"));
+ return;
+ }
+ skb = _skb;
+ } else{
+ /* TO DO */
+ _rtl_rx_pre_process(hw, skb);
+ printk(KERN_ERR "rtlwifi: rx agg not supported\n");
+ }
+ goto resubmit;
+ }
+
+ switch (_urb->status) {
+ /* disconnect */
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ goto free;
+ default:
+ break;
+ }
+
+resubmit:
+ skb_reset_tail_pointer(skb);
+ skb_trim(skb, 0);
+
+ 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:
+ dev_kfree_skb_irq(skb);
+}
+
+static int _rtl_usb_receive(struct ieee80211_hw *hw)
+{
+ struct urb *urb;
+ struct sk_buff *skb;
+ 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;
+ }
+
+ skb = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
+ if (IS_ERR(skb)) {
+ RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
+ ("Failed to prep_rx_urb!!\n"))
+ err = PTR_ERR(skb);
+ 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);
+ 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);
+ 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 */
+ _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);
+ /* TODO: think of race condition... */
+
+ /* clean up rx stuff. */
+ usb_kill_anchored_urbs(&rtlusb->rx_submitted);
+
+ /* 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);
+ /* 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) {
+ /* TODO: Shall I ignore error and keep issue 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) {
+ /* TODO: reinsert skb to list or free the skb? */
+ 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;
+ struct sk_buff_head *skb_list;
+ struct usb_anchor *urb_list;
+
+ WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
+ /* TODO: if usb suspend, we may queue the skb and wake device up.
+ * Then xmit.
+ * TODO: may change this statement and check all usb state */
+ 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_list = &rtlusb->tx_skb_queue[ep_num];
+ _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"));
+ return;
+ }
+ urb_list = &rtlusb->tx_pending[ep_num];
+ _rtl_submit_tx_urb(hw, _urb);
+}
+
+static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, 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 ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ u8 *pda_addr = hdr->addr1;
+ /* ssn */
+ u8 *qc = NULL;
+ u8 tid = 0;
+ u16 seq_number = 0;
+
+ if (ieee80211_is_mgmt(fc))
+ rtl_tx_mgmt_proc(hw, skb);
+ 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, info, skb,
+ hw_queue);
+ 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 sk_buff *skb)
+{
+ 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);
+ u16 fc = le16_to_cpu(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, 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 sk_buff *skb)
+{
+ return false;
+}
+
+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 __devinit rtl_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ 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, ("%s : ieee80211 alloc failed\n", __func__));
+ return -ENOMEM;
+ }
+ rtlpriv = hw->priv;
+ 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 = (struct rtl_hal_cfg *)(id->driver_info);
+ 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);
+ 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);
+ err = _rtl_usb_init(hw);
+ err = _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;
+ }
+
+ /*init rfkill */
+ /* rtl_init_rfkill(hw); */
+
+ err = ieee80211_register_hw(hw);
+ if (err) {
+ RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
+ ("Can't register mac80211 hw.\n"));
+ goto error_out;
+ } else {
+ rtlpriv->mac80211.mac80211_registered = 1;
+ }
+ set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
+ return 0;
+error_out:
+ rtl_deinit_core(hw);
+ _rtl_usb_io_handler_release(hw);
+ ieee80211_free_hw(hw);
+ usb_put_dev(udev);
+ 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;
+ /*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);
+ 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);
Index: wireless-testing/drivers/net/wireless/rtlwifi/usb.h
===================================================================
--- /dev/null
+++ wireless-testing/drivers/net/wireless/rtlwifi/usb.h
@@ -0,0 +1,164 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2011 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
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <[email protected]>
+ * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
+ * Hsinchu 300, Taiwan.
+ *
+ *****************************************************************************/
+
+#ifndef __RTL_USB_H__
+#define __RTL_USB_H__
+
+#include <linux/usb.h>
+#include <linux/skbuff.h>
+
+#define RTL_USB_DEVICE(vend, prod, cfg) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .driver_info = (kernel_ulong_t)&(cfg)
+
+#define USB_HIGH_SPEED_BULK_SIZE 512
+#define USB_FULL_SPEED_BULK_SIZE 64
+
+
+#define RTL_USB_MAX_TXQ_NUM 4 /* max tx queue */
+#define RTL_USB_MAX_EP_NUM 6 /* max ep number */
+#define RTL_USB_MAX_TX_URBS_NUM 8
+
+enum rtl_txq {
+ /* These definitions shall be consistent with value
+ * returned by skb_get_queue_mapping
+ *------------------------------------*/
+ RTL_TXQ_BK,
+ RTL_TXQ_BE,
+ RTL_TXQ_VI,
+ RTL_TXQ_VO,
+ /*------------------------------------*/
+ RTL_TXQ_BCN,
+ RTL_TXQ_MGT,
+ RTL_TXQ_HI,
+
+ /* Must be last */
+ __RTL_TXQ_NUM,
+};
+
+struct rtl_ep_map {
+ u32 ep_mapping[__RTL_TXQ_NUM];
+};
+
+struct _trx_info {
+ struct rtl_usb *rtlusb;
+ u32 ep_num;
+};
+
+static inline void _rtl_install_trx_info(struct rtl_usb *rtlusb,
+ struct sk_buff *skb,
+ u32 ep_num)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ info->rate_driver_data[0] = rtlusb;
+ info->rate_driver_data[1] = (void *)(__kernel_size_t)ep_num;
+}
+
+
+/* Add suspend/resume later */
+enum rtl_usb_state {
+ USB_STATE_STOP = 0,
+ USB_STATE_START = 1,
+};
+
+#define IS_USB_STOP(rtlusb_ptr) (USB_STATE_STOP == (rtlusb_ptr)->state)
+#define IS_USB_START(rtlusb_ptr) (USB_STATE_START == (rtlusb_ptr)->state)
+#define SET_USB_STOP(rtlusb_ptr) \
+ do { \
+ (rtlusb_ptr)->state = USB_STATE_STOP; \
+ } while (0)
+
+#define SET_USB_START(rtlusb_ptr) \
+ do { \
+ (rtlusb_ptr)->state = USB_STATE_START; \
+ } while (0)
+
+struct rtl_usb {
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ enum rtl_usb_state state;
+
+ /* Bcn control register setting */
+ u32 reg_bcn_ctrl_val;
+ /* for 88/92cu card disable */
+ u8 disableHWSM;
+ /*QOS & EDCA */
+ enum acm_method acm_method;
+ /* irq . HIMR,HIMR_EX */
+ u32 irq_mask[2];
+ bool irq_enabled;
+
+ u16 (*usb_mq_to_hwq)(u16 fc, u16 mac80211_queue_index);
+
+ /* Tx */
+ u8 out_ep_nums ;
+ u8 out_queue_sel;
+ struct rtl_ep_map ep_map;
+
+ u32 max_bulk_out_size;
+ u32 tx_submitted_urbs;
+ struct sk_buff_head tx_skb_queue[RTL_USB_MAX_EP_NUM];
+
+ struct usb_anchor tx_pending[RTL_USB_MAX_EP_NUM];
+ struct usb_anchor tx_submitted;
+
+ struct sk_buff *(*usb_tx_aggregate_hdl)(struct ieee80211_hw *,
+ struct sk_buff_head *);
+ int (*usb_tx_post_hdl)(struct ieee80211_hw *,
+ struct urb *, struct sk_buff *);
+ void (*usb_tx_cleanup)(struct ieee80211_hw *, struct sk_buff *);
+
+ /* Rx */
+ u8 in_ep_nums ;
+ u32 in_ep; /* Bulk IN endpoint number */
+ u32 rx_max_size; /* Bulk IN max buffer size */
+ u32 rx_urb_num; /* How many Bulk INs are submitted to host. */
+ struct usb_anchor rx_submitted;
+ void (*usb_rx_segregate_hdl)(struct ieee80211_hw *, struct sk_buff *,
+ struct sk_buff_head *);
+ void (*usb_rx_hdl)(struct ieee80211_hw *, struct sk_buff *);
+};
+
+struct rtl_usb_priv {
+ struct rtl_usb dev;
+ struct rtl_led_ctl ledctl;
+};
+
+#define rtl_usbpriv(hw) (((struct rtl_usb_priv *)(rtl_priv(hw))->priv))
+#define rtl_usbdev(usbpriv) (&((usbpriv)->dev))
+
+
+
+int __devinit rtl_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id);
+void rtl_usb_disconnect(struct usb_interface *intf);
+int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message);
+int rtl_usb_resume(struct usb_interface *pusb_intf);
+
+#endif
On Sun, Feb 06, 2011 at 12:44:20PM -0600, Larry Finger wrote:
> +enum {
> + VENDOR_WRITE = 0x00,
> + VENDOR_READ = 0x01,
> +};
[snip]
> +static int _usbctrl_vendorreq_async(struct usb_device *udev, u8 request,
> + u16 value, u16 index, void *pdata,
> + u16 len, u8 requesttype)
> +{
It whould be better to leave old name and remove requesttype argument.
We never call _usbctrl_vendorreq_async with VENDOR_READ, and
_usbctrl_vendorreq_sync with VENDOR_WRITE.
If this is not preparation for future changes, that need to
cleaned up, and VENDOR_WRITE and VENDOR_READ definition removed at all.
> + wvalue = (u16)(addr&0x0000ffff);
wvalue = (u16) addr;
> +static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
> +{
> + struct rtl_priv *rtlpriv = rtl_priv(hw);
> +
> + if (&rtlpriv->io)
How it can be NULL? :-) Perhaps this should be rtlpriv check?
> + /* TODO: think of race condition... */
[snip]
> + /* TODO: statistics */
[snip]
> +
[snip]
> + /* TODO: Shall I ignore error and keep issue other urbs? */
[snip]
> + /* TODO: reinsert skb to list or free the skb? */
[snip]
> + /* TODO: if usb suspend, we may queue the skb and wake device up.
> + * Then xmit.
> + * TODO: may change this statement and check all usb state */
Lots of TODO, is this code working? :-)
Is this driver for devices that are currently on the market,
or for future product? I have 3 Realtek dongles, but all works
only with staging driver ...
Stanislaw
Dear John:
recently, I found some issues on mac80211 scan about null packet.
Before we switch channel in scanning, we will send null packet to AP
to indicate that we will sleep.
but at the same time there maybe lots of packets in HW tx buffer
witch are all ready to tx but with out
power save flag set to 1. if we send this null packet after these
tx buffer packets in a low priority, this will
cause follwing null packets fail because follwing check in
__ieee80211_tx:
if (local->queue_stop_reasons[q] ||
(!txpending && !skb_queue_empty(&local->pending[q])))
ret = IEEE80211_TX_PENDING;
But if we send these null before there tx buffer packets packets in
a high priority, these packets will
be send after this null before switch channel. and switch channel
will cause RX packet from AP fail abruptly,
this abruptly fail will cause DELETE BA for some AP like Belkin-8233
11N mode or dis-associate by some AP like Dir855 5G 11N mode
when we to test Throughput use chariot
And I found that after power save null packet have been sent, there
are lots packet send to driver from mac80211,
should we stop all queues after we send power save null packet and
recover all queues after we send awake null packet.
So, I don't kown if it's a mac80211's issue, Could you give some
help?
Thank you!
Best regards!
lizhaoming
On Wed, Feb 09, 2011 at 09:58:46AM +0800, 李朝明 wrote:
> recently, I found some issues on mac80211 scan about null packet.
>
> Before we switch channel in scanning, we will send null packet to AP
> to indicate that we will sleep.
> but at the same time there maybe lots of packets in HW tx buffer
> witch are all ready to tx but with out
> power save flag set to 1. if we send this null packet after these
> tx buffer packets in a low priority,
We have ieee80211_ops->flush() method to send all pending tx frames from
hw before sending null frame. I see rtlwifi does not have it.
> this will
> cause follwing null packets fail because follwing check in
> __ieee80211_tx:
> if (local->queue_stop_reasons[q] ||
> (!txpending && !skb_queue_empty(&local->pending[q])))
> ret = IEEE80211_TX_PENDING;
>
> But if we send these null before there tx buffer packets packets in
> a high priority, these packets will
> be send after this null before switch channel. and switch channel
> will cause RX packet from AP fail abruptly,
> this abruptly fail will cause DELETE BA for some AP like Belkin-8233
> 11N mode or dis-associate by some AP like Dir855 5G 11N mode
> when we to test Throughput use chariot
>
> And I found that after power save null packet have been sent, there
> are lots packet send to driver from mac80211,
> should we stop all queues after we send power save null packet and
> recover all queues after we send awake null packet.
>
> So, I don't kown if it's a mac80211's issue, Could you give some
> help?
I'm not sure if I understand problem you described. Anyway, maybe is
enaugh to implement ->flush() in rtlwifi to solve the problem?
Stanislaw
On Sun, Feb 06, 2011 at 12:44:20PM -0600, Larry Finger wrote:
> Signed-off-by: Larry Finger <[email protected]>
Oh, one more thing, shouldn't be signed also by Realtek
or Realsil?