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Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8187/dev.c')
-rw-r--r--drivers/net/wireless/rtl818x/rtl8187/dev.c187
1 files changed, 138 insertions, 49 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c
index 638fbef693e..629ad8cfa17 100644
--- a/drivers/net/wireless/rtl818x/rtl8187/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187/dev.c
@@ -2,13 +2,13 @@
* Linux device driver for RTL8187
*
* Copyright 2007 Michael Wu <flamingice@sourmilk.net>
- * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
+ * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
*
* Based on the r8187 driver, which is:
- * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
+ * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, et al.
*
* The driver was extended to the RTL8187B in 2008 by:
- * Herton Ronaldo Krzesinski <herton@mandriva.com.br>
+ * Herton Ronaldo Krzesinski <herton@mandriva.com.br>
* Hin-Tak Leung <htl10@users.sourceforge.net>
* Larry Finger <Larry.Finger@lwfinger.net>
*
@@ -20,7 +20,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
#include <linux/usb.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -37,14 +36,14 @@
#include "rfkill.h"
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
-MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
+MODULE_AUTHOR("Andrea Merello <andrea.merello@gmail.com>");
MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>");
MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>");
MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
MODULE_LICENSE("GPL");
-static struct usb_device_id rtl8187_table[] __devinitdata = {
+static struct usb_device_id rtl8187_table[] = {
/* Asus */
{USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
/* Belkin */
@@ -228,10 +227,13 @@ static void rtl8187_tx_cb(struct urb *urb)
}
}
-static void rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
+static void rtl8187_tx(struct ieee80211_hw *dev,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
{
struct rtl8187_priv *priv = dev->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr *tx_hdr = (struct ieee80211_hdr *)(skb->data);
unsigned int ep;
void *buf;
struct urb *urb;
@@ -249,16 +251,30 @@ static void rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
- if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
+ if (ieee80211_has_morefrags(tx_hdr->frame_control))
flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
+
+ /* HW will perform RTS-CTS when only RTS flags is set.
+ * HW will perform CTS-to-self when both RTS and CTS flags are set.
+ * RTS rate and RTS duration will be used also for CTS-to-self.
+ */
if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
flags |= RTL818X_TX_DESC_FLAG_RTS;
flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
rts_dur = ieee80211_rts_duration(dev, priv->vif,
skb->len, info);
} else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
- flags |= RTL818X_TX_DESC_FLAG_CTS;
+ flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS;
flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
+ rts_dur = ieee80211_ctstoself_duration(dev, priv->vif,
+ skb->len, info);
+ }
+
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+ priv->seqno += 0x10;
+ tx_hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ tx_hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
}
if (!priv->is_rtl8187b) {
@@ -274,8 +290,6 @@ static void rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
} else {
/* fc needs to be calculated before skb_push() */
unsigned int epmap[4] = { 6, 7, 5, 4 };
- struct ieee80211_hdr *tx_hdr =
- (struct ieee80211_hdr *)(skb->data);
u16 fc = le16_to_cpu(tx_hdr->frame_control);
struct rtl8187b_tx_hdr *hdr =
@@ -288,6 +302,7 @@ static void rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
hdr->tx_duration =
ieee80211_generic_frame_duration(dev, priv->vif,
+ info->band,
skb->len, txrate);
buf = hdr;
@@ -370,9 +385,11 @@ static void rtl8187_rx_cb(struct urb *urb)
rate = (flags >> 20) & 0xF;
skb_trim(skb, flags & 0x0FFF);
rx_status.rate_idx = rate;
- rx_status.freq = dev->conf.channel->center_freq;
- rx_status.band = dev->conf.channel->band;
- rx_status.flag |= RX_FLAG_MACTIME_MPDU;
+ rx_status.freq = dev->conf.chandef.chan->center_freq;
+ rx_status.band = dev->conf.chandef.chan->band;
+ rx_status.flag |= RX_FLAG_MACTIME_START;
+ if (flags & RTL818X_RX_DESC_FLAG_SPLCP)
+ rx_status.flag |= RX_FLAG_SHORTPRE;
if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
@@ -407,7 +424,7 @@ static int rtl8187_init_urbs(struct ieee80211_hw *dev)
struct rtl8187_rx_info *info;
int ret = 0;
- while (skb_queue_len(&priv->rx_queue) < 16) {
+ while (skb_queue_len(&priv->rx_queue) < 32) {
skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
if (!skb) {
ret = -ENOMEM;
@@ -429,17 +446,16 @@ static int rtl8187_init_urbs(struct ieee80211_hw *dev)
skb_queue_tail(&priv->rx_queue, skb);
usb_anchor_urb(entry, &priv->anchored);
ret = usb_submit_urb(entry, GFP_KERNEL);
+ usb_put_urb(entry);
if (ret) {
skb_unlink(skb, &priv->rx_queue);
usb_unanchor_urb(entry);
goto err;
}
- usb_free_urb(entry);
}
return ret;
err:
- usb_free_urb(entry);
kfree_skb(skb);
usb_kill_anchored_urbs(&priv->anchored);
return ret;
@@ -585,7 +601,7 @@ static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon)
rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2);
if (priv->is_rtl8187b)
- rtl818x_iowrite8(priv, &priv->map->ANAPARAM3, anaparam3);
+ rtl818x_iowrite8(priv, &priv->map->ANAPARAM3A, anaparam3);
reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
@@ -778,7 +794,7 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev)
rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF);
reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
- reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
+ reg |= RTL818X_CW_CONF_PERPACKET_RETRY;
rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
/* Auto Rate Fallback Register (ARFR): 1M-54M setting */
@@ -936,8 +952,8 @@ static int rtl8187_start(struct ieee80211_hw *dev)
rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
- reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
- reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
+ reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN;
+ reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL;
reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
@@ -947,8 +963,12 @@ static int rtl8187_start(struct ieee80211_hw *dev)
(RETRY_COUNT << 8 /* short retry limit */) |
(RETRY_COUNT << 0 /* long retry limit */) |
(7 << 21 /* MAX TX DMA */));
- rtl8187_init_urbs(dev);
- rtl8187b_init_status_urb(dev);
+ ret = rtl8187_init_urbs(dev);
+ if (ret)
+ goto rtl8187_start_exit;
+ ret = rtl8187b_init_status_urb(dev);
+ if (ret)
+ usb_kill_anchored_urbs(&priv->anchored);
goto rtl8187_start_exit;
}
@@ -957,7 +977,9 @@ static int rtl8187_start(struct ieee80211_hw *dev)
rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
- rtl8187_init_urbs(dev);
+ ret = rtl8187_init_urbs(dev);
+ if (ret)
+ goto rtl8187_start_exit;
reg = RTL818X_RX_CONF_ONLYERLPKT |
RTL818X_RX_CONF_RX_AUTORESETPHY |
@@ -973,13 +995,13 @@ static int rtl8187_start(struct ieee80211_hw *dev)
rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
- reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
- reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
+ reg &= ~RTL818X_CW_CONF_PERPACKET_CW;
+ reg |= RTL818X_CW_CONF_PERPACKET_RETRY;
rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
- reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
- reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
+ reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN;
+ reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL;
reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
@@ -1031,10 +1053,61 @@ static void rtl8187_stop(struct ieee80211_hw *dev)
cancel_delayed_work_sync(&priv->work);
}
+static u64 rtl8187_get_tsf(struct ieee80211_hw *dev, struct ieee80211_vif *vif)
+{
+ struct rtl8187_priv *priv = dev->priv;
+
+ return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
+ (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
+}
+
+
+static void rtl8187_beacon_work(struct work_struct *work)
+{
+ struct rtl8187_vif *vif_priv =
+ container_of(work, struct rtl8187_vif, beacon_work.work);
+ struct ieee80211_vif *vif =
+ container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
+ struct ieee80211_hw *dev = vif_priv->dev;
+ struct ieee80211_mgmt *mgmt;
+ struct sk_buff *skb;
+
+ /* don't overflow the tx ring */
+ if (ieee80211_queue_stopped(dev, 0))
+ goto resched;
+
+ /* grab a fresh beacon */
+ skb = ieee80211_beacon_get(dev, vif);
+ if (!skb)
+ goto resched;
+
+ /*
+ * update beacon timestamp w/ TSF value
+ * TODO: make hardware update beacon timestamp
+ */
+ mgmt = (struct ieee80211_mgmt *)skb->data;
+ mgmt->u.beacon.timestamp = cpu_to_le64(rtl8187_get_tsf(dev, vif));
+
+ /* TODO: use actual beacon queue */
+ skb_set_queue_mapping(skb, 0);
+
+ rtl8187_tx(dev, NULL, skb);
+
+resched:
+ /*
+ * schedule next beacon
+ * TODO: use hardware support for beacon timing
+ */
+ schedule_delayed_work(&vif_priv->beacon_work,
+ usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
+}
+
+
static int rtl8187_add_interface(struct ieee80211_hw *dev,
struct ieee80211_vif *vif)
{
struct rtl8187_priv *priv = dev->priv;
+ struct rtl8187_vif *vif_priv;
int i;
int ret = -EOPNOTSUPP;
@@ -1044,6 +1117,7 @@ static int rtl8187_add_interface(struct ieee80211_hw *dev,
switch (vif->type) {
case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
break;
default:
goto exit;
@@ -1052,6 +1126,13 @@ static int rtl8187_add_interface(struct ieee80211_hw *dev,
ret = 0;
priv->vif = vif;
+ /* Initialize driver private area */
+ vif_priv = (struct rtl8187_vif *)&vif->drv_priv;
+ vif_priv->dev = dev;
+ INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8187_beacon_work);
+ vif_priv->enable_beacon = false;
+
+
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
for (i = 0; i < ETH_ALEN; i++)
rtl818x_iowrite8(priv, &priv->map->MAC[i],
@@ -1175,9 +1256,12 @@ static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
u32 changed)
{
struct rtl8187_priv *priv = dev->priv;
+ struct rtl8187_vif *vif_priv;
int i;
u8 reg;
+ vif_priv = (struct rtl8187_vif *)&vif->drv_priv;
+
if (changed & BSS_CHANGED_BSSID) {
mutex_lock(&priv->conf_mutex);
for (i = 0; i < ETH_ALEN; i++)
@@ -1189,8 +1273,12 @@ static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
else
reg = 0;
- if (is_valid_ether_addr(info->bssid))
- reg |= RTL818X_MSR_INFRA;
+ if (is_valid_ether_addr(info->bssid)) {
+ if (vif->type == NL80211_IFTYPE_ADHOC)
+ reg |= RTL818X_MSR_ADHOC;
+ else
+ reg |= RTL818X_MSR_INFRA;
+ }
else
reg |= RTL818X_MSR_NO_LINK;
@@ -1202,6 +1290,16 @@ static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE))
rtl8187_conf_erp(priv, info->use_short_slot,
info->use_short_preamble);
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED)
+ vif_priv->enable_beacon = info->enable_beacon;
+
+ if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
+ cancel_delayed_work_sync(&vif_priv->beacon_work);
+ if (vif_priv->enable_beacon)
+ schedule_work(&vif_priv->beacon_work.work);
+ }
+
}
static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev,
@@ -1279,13 +1377,6 @@ static int rtl8187_conf_tx(struct ieee80211_hw *dev,
return 0;
}
-static u64 rtl8187_get_tsf(struct ieee80211_hw *dev, struct ieee80211_vif *vif)
-{
- struct rtl8187_priv *priv = dev->priv;
-
- return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
- (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
-}
static const struct ieee80211_ops rtl8187_ops = {
.tx = rtl8187_tx,
@@ -1333,7 +1424,7 @@ static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
udelay(10);
}
-static int __devinit rtl8187_probe(struct usb_interface *intf,
+static int rtl8187_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
@@ -1410,7 +1501,7 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
if (!is_valid_ether_addr(mac_addr)) {
printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
"generated MAC address\n");
- random_ether_addr(mac_addr);
+ eth_random_addr(mac_addr);
}
SET_IEEE80211_PERM_ADDR(dev, mac_addr);
@@ -1514,12 +1605,9 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
if (reg & 0xFF00)
priv->rfkill_mask = RFKILL_MASK_8198;
}
-
- /*
- * XXX: Once this driver supports anything that requires
- * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
- */
- dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+ dev->vif_data_size = sizeof(struct rtl8187_vif);
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC) ;
if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
@@ -1557,14 +1645,14 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
err_free_dmabuf:
kfree(priv->io_dmabuf);
- err_free_dev:
- ieee80211_free_hw(dev);
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
+ err_free_dev:
+ ieee80211_free_hw(dev);
return err;
}
-static void __devexit rtl8187_disconnect(struct usb_interface *intf)
+static void rtl8187_disconnect(struct usb_interface *intf)
{
struct ieee80211_hw *dev = usb_get_intfdata(intf);
struct rtl8187_priv *priv;
@@ -1589,7 +1677,8 @@ static struct usb_driver rtl8187_driver = {
.name = KBUILD_MODNAME,
.id_table = rtl8187_table,
.probe = rtl8187_probe,
- .disconnect = __devexit_p(rtl8187_disconnect),
+ .disconnect = rtl8187_disconnect,
+ .disable_hub_initiated_lpm = 1,
};
module_usb_driver(rtl8187_driver);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 14:06:48 +0000