forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1139 lines
29 KiB
1139 lines
29 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* Copyright(c) 2009-2012 Realtek Corporation.*/ |
|
|
|
#include "wifi.h" |
|
#include "core.h" |
|
#include "usb.h" |
|
#include "base.h" |
|
#include "ps.h" |
|
#include "rtl8192c/fw_common.h" |
|
#include <linux/export.h> |
|
#include <linux/module.h> |
|
|
|
MODULE_AUTHOR("lizhaoming <[email protected]>"); |
|
MODULE_AUTHOR("Realtek WlanFAE <[email protected]>"); |
|
MODULE_AUTHOR("Larry Finger <[email protected]>"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_DESCRIPTION("USB basic driver for rtlwifi"); |
|
|
|
#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 MAX_USBCTRL_VENDORREQ_TIMES 10 |
|
|
|
static void usbctrl_async_callback(struct urb *urb) |
|
{ |
|
if (urb) { |
|
/* free dr */ |
|
kfree(urb->setup_packet); |
|
/* free databuf */ |
|
kfree(urb->transfer_buffer); |
|
} |
|
} |
|
|
|
static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request, |
|
u16 value, u16 index, void *pdata, |
|
u16 len) |
|
{ |
|
int rc; |
|
unsigned int pipe; |
|
u8 reqtype; |
|
struct usb_ctrlrequest *dr; |
|
struct urb *urb; |
|
const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE; |
|
u8 *databuf; |
|
|
|
if (WARN_ON_ONCE(len > databuf_maxlen)) |
|
len = databuf_maxlen; |
|
|
|
pipe = usb_sndctrlpipe(udev, 0); /* write_out */ |
|
reqtype = REALTEK_USB_VENQT_WRITE; |
|
|
|
dr = kzalloc(sizeof(*dr), GFP_ATOMIC); |
|
if (!dr) |
|
return -ENOMEM; |
|
|
|
databuf = kzalloc(databuf_maxlen, GFP_ATOMIC); |
|
if (!databuf) { |
|
kfree(dr); |
|
return -ENOMEM; |
|
} |
|
|
|
urb = usb_alloc_urb(0, GFP_ATOMIC); |
|
if (!urb) { |
|
kfree(databuf); |
|
kfree(dr); |
|
return -ENOMEM; |
|
} |
|
|
|
dr->bRequestType = reqtype; |
|
dr->bRequest = request; |
|
dr->wValue = cpu_to_le16(value); |
|
dr->wIndex = cpu_to_le16(index); |
|
dr->wLength = cpu_to_le16(len); |
|
/* data are already in little-endian order */ |
|
memcpy(databuf, pdata, len); |
|
usb_fill_control_urb(urb, udev, pipe, |
|
(unsigned char *)dr, databuf, len, |
|
usbctrl_async_callback, NULL); |
|
rc = usb_submit_urb(urb, GFP_ATOMIC); |
|
if (rc < 0) { |
|
kfree(databuf); |
|
kfree(dr); |
|
} |
|
usb_free_urb(urb); |
|
return rc; |
|
} |
|
|
|
static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request, |
|
u16 value, u16 index, void *pdata, |
|
u16 len) |
|
{ |
|
unsigned int pipe; |
|
int status; |
|
u8 reqtype; |
|
int vendorreq_times = 0; |
|
static int count; |
|
|
|
pipe = usb_rcvctrlpipe(udev, 0); /* read_in */ |
|
reqtype = REALTEK_USB_VENQT_READ; |
|
|
|
do { |
|
status = usb_control_msg(udev, pipe, request, reqtype, value, |
|
index, pdata, len, 1000); |
|
if (status < 0) { |
|
/* firmware download is checksumed, don't retry */ |
|
if ((value >= FW_8192C_START_ADDRESS && |
|
value <= FW_8192C_END_ADDRESS)) |
|
break; |
|
} else { |
|
break; |
|
} |
|
} while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES); |
|
|
|
if (status < 0 && count++ < 4) |
|
pr_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 rtl_priv *rtlpriv, u32 addr, u16 len) |
|
{ |
|
struct device *dev = rtlpriv->io.dev; |
|
struct usb_device *udev = to_usb_device(dev); |
|
u8 request; |
|
u16 wvalue; |
|
u16 index; |
|
__le32 *data; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags); |
|
if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) |
|
rtlpriv->usb_data_index = 0; |
|
data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; |
|
spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags); |
|
request = REALTEK_USB_VENQT_CMD_REQ; |
|
index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ |
|
|
|
wvalue = (u16)addr; |
|
_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); |
|
return le32_to_cpu(*data); |
|
} |
|
|
|
static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr) |
|
{ |
|
return (u8)_usb_read_sync(rtlpriv, addr, 1); |
|
} |
|
|
|
static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr) |
|
{ |
|
return (u16)_usb_read_sync(rtlpriv, addr, 2); |
|
} |
|
|
|
static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr) |
|
{ |
|
return _usb_read_sync(rtlpriv, addr, 4); |
|
} |
|
|
|
static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val, |
|
u16 len) |
|
{ |
|
u8 request; |
|
u16 wvalue; |
|
u16 index; |
|
__le32 data; |
|
|
|
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_write(udev, request, wvalue, index, &data, |
|
len); |
|
} |
|
|
|
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 void _usb_writen_sync(struct rtl_priv *rtlpriv, u32 addr, void *data, |
|
u16 len) |
|
{ |
|
struct device *dev = rtlpriv->io.dev; |
|
struct usb_device *udev = to_usb_device(dev); |
|
u8 request = REALTEK_USB_VENQT_CMD_REQ; |
|
u8 reqtype = REALTEK_USB_VENQT_WRITE; |
|
u16 wvalue; |
|
u16 index = REALTEK_USB_VENQT_CMD_IDX; |
|
int pipe = usb_sndctrlpipe(udev, 0); /* write_out */ |
|
u8 *buffer; |
|
|
|
wvalue = (u16)(addr & 0x0000ffff); |
|
buffer = kmemdup(data, len, GFP_ATOMIC); |
|
if (!buffer) |
|
return; |
|
usb_control_msg(udev, pipe, request, reqtype, wvalue, |
|
index, buffer, len, 50); |
|
|
|
kfree(buffer); |
|
} |
|
|
|
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.read8_sync = _usb_read8_sync; |
|
rtlpriv->io.read16_sync = _usb_read16_sync; |
|
rtlpriv->io.read32_sync = _usb_read32_sync; |
|
rtlpriv->io.writen_sync = _usb_writen_sync; |
|
} |
|
|
|
static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw) |
|
{ |
|
struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw); |
|
|
|
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; |
|
|
|
rtl_dbg(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) { |
|
rtl_dbg(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 void _rtl_rx_work(struct tasklet_struct *t); |
|
|
|
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; |
|
|
|
pr_info("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); |
|
init_usb_anchor(&rtlusb->rx_cleanup_urbs); |
|
|
|
skb_queue_head_init(&rtlusb->rx_queue); |
|
tasklet_setup(&rtlusb->rx_work_tasklet, _rtl_rx_work); |
|
|
|
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++; |
|
|
|
rtl_dbg(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) { |
|
pr_err("Too few input end points found\n"); |
|
return -EINVAL; |
|
} |
|
if (rtlusb->out_ep_nums == 0) { |
|
pr_err("No output end points found\n"); |
|
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 void 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->inactiveps = false; |
|
ppsc->leisure_ps = false; |
|
ppsc->fwctrl_lps = false; |
|
ppsc->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; |
|
} |
|
|
|
static void _rtl_rx_completed(struct urb *urb); |
|
|
|
static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb, |
|
struct urb *urb, gfp_t gfp_mask) |
|
{ |
|
void *buf; |
|
|
|
buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask, |
|
&urb->transfer_dma); |
|
if (!buf) { |
|
pr_err("Failed to usb_alloc_coherent!!\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
usb_fill_bulk_urb(urb, rtlusb->udev, |
|
usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep), |
|
buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb); |
|
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
|
|
|
return 0; |
|
} |
|
|
|
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; |
|
__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); |
|
} |
|
} |
|
|
|
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); |
|
} 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(struct tasklet_struct *t) |
|
{ |
|
struct rtl_usb *rtlusb = from_tasklet(rtlusb, t, rx_work_tasklet); |
|
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; |
|
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)) { |
|
pr_err("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) { |
|
pr_err("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) { |
|
pr_err("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); |
|
|
|
skb_put_data(skb, _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_priv *rtlpriv = rtl_priv(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); |
|
cancel_work_sync(&rtlpriv->works.lps_change_work); |
|
|
|
if (rtlpriv->works.rtl_wq) { |
|
destroy_workqueue(rtlpriv->works.rtl_wq); |
|
rtlpriv->works.rtl_wq = NULL; |
|
} |
|
|
|
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_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) |
|
goto err_out; |
|
|
|
err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL); |
|
if (err < 0) { |
|
pr_err("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) { |
|
usb_unanchor_urb(urb); |
|
usb_free_urb(urb); |
|
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); |
|
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; |
|
|
|
/* 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)); |
|
struct urb *urb; |
|
|
|
/* 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); |
|
|
|
/* free pre-allocated URBs from rtl_usb_start() */ |
|
usb_kill_anchored_urbs(&rtlusb->rx_submitted); |
|
|
|
tasklet_kill(&rtlusb->rx_work_tasklet); |
|
cancel_work_sync(&rtlpriv->works.lps_change_work); |
|
cancel_work_sync(&rtlpriv->works.update_beacon_work); |
|
|
|
flush_workqueue(rtlpriv->works.rtl_wq); |
|
|
|
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); |
|
} |
|
|
|
rtlpriv->cfg->ops->hw_disable(hw); |
|
} |
|
|
|
static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb) |
|
{ |
|
int err; |
|
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; |
|
|
|
pr_err("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_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) { |
|
pr_err("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_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); |
|
struct urb *_urb; |
|
|
|
WARN_ON(NULL == skb); |
|
_urb = usb_alloc_urb(0, GFP_ATOMIC); |
|
if (!_urb) |
|
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_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); |
|
u32 ep_num; |
|
struct urb *_urb = NULL; |
|
|
|
WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl); |
|
if (unlikely(IS_USB_STOP(rtlusb))) { |
|
pr_err("USB device is stopping...\n"); |
|
kfree_skb(skb); |
|
return; |
|
} |
|
ep_num = rtlusb->ep_map.ep_mapping[qnum]; |
|
_urb = _rtl_usb_tx_urb_setup(hw, skb, ep_num); |
|
if (unlikely(!_urb)) { |
|
pr_err("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 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; |
|
|
|
memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); |
|
if (ieee80211_is_auth(fc)) { |
|
rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); |
|
} |
|
|
|
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; |
|
rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, NULL, info, sta, skb, |
|
hw_queue, &tcb_desc); |
|
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 const 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) { |
|
WARN_ONCE(true, "rtl_usb: ieee80211 alloc failed\n"); |
|
return -ENOMEM; |
|
} |
|
rtlpriv = hw->priv; |
|
rtlpriv->hw = hw; |
|
rtlpriv->usb_data = kcalloc(RTL_USB_MAX_RX_COUNT, sizeof(u32), |
|
GFP_KERNEL); |
|
if (!rtlpriv->usb_data) { |
|
ieee80211_free_hw(hw); |
|
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); |
|
INIT_WORK(&rtlpriv->works.update_beacon_work, |
|
rtl_update_beacon_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; |
|
/* 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_out2; |
|
rtl_usb_init_sw(hw); |
|
/* Init mac80211 sw */ |
|
err = rtl_init_core(hw); |
|
if (err) { |
|
pr_err("Can't allocate sw for mac80211\n"); |
|
goto error_out2; |
|
} |
|
if (rtlpriv->cfg->ops->init_sw_vars(hw)) { |
|
pr_err("Can't init_sw_vars\n"); |
|
goto error_out; |
|
} |
|
rtlpriv->cfg->ops->init_sw_leds(hw); |
|
|
|
err = ieee80211_register_hw(hw); |
|
if (err) { |
|
pr_err("Can't register mac80211 hw.\n"); |
|
goto error_out; |
|
} |
|
rtlpriv->mac80211.mac80211_registered = 1; |
|
|
|
set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); |
|
return 0; |
|
|
|
error_out: |
|
rtl_deinit_core(hw); |
|
error_out2: |
|
_rtl_usb_io_handler_release(hw); |
|
usb_put_dev(udev); |
|
complete(&rtlpriv->firmware_loading_complete); |
|
kfree(rtlpriv->usb_data); |
|
ieee80211_free_hw(hw); |
|
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); |
|
clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); |
|
/*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, false); |
|
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);
|
|
|