/*
* Linux device driver for RTL8187
*
* Copyright 2007 Michael Wu <flamingice@sourmilk.net>
* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
*
* Based on the r8187 driver, which is:
* Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
*
* Magic delays and register offsets below are taken from the original
* r8187 driver sources. Thanks to Realtek for their support!
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/usb.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/eeprom_93cx6.h>
#include <net/mac80211.h>
#include "rtl8187.h"
#include "rtl8187_rtl8225.h"
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
MODULE_DESCRIPTION("RTL8187 USB wireless driver");
MODULE_LICENSE("GPL");
static struct usb_device_id rtl8187_table[] __devinitdata = {
/* Realtek */
{USB_DEVICE(0x0bda, 0x8187)},
/* Netgear */
{USB_DEVICE(0x0846, 0x6100)},
{USB_DEVICE(0x0846, 0x6a00)},
/* HP */
{USB_DEVICE(0x03f0, 0xca02)},
/* Sitecom */
{USB_DEVICE(0x0df6, 0x000d)},
{}
};
MODULE_DEVICE_TABLE(usb, rtl8187_table);
static const struct ieee80211_rate rtl818x_rates[] = {
{ .bitrate = 10, .hw_value = 0, },
{ .bitrate = 20, .hw_value = 1, },
{ .bitrate = 55, .hw_value = 2, },
{ .bitrate = 110, .hw_value = 3, },
{ .bitrate = 60, .hw_value = 4, },
{ .bitrate = 90, .hw_value = 5, },
{ .bitrate = 120, .hw_value = 6, },
{ .bitrate = 180, .hw_value = 7, },
{ .bitrate = 240, .hw_value = 8, },
{ .bitrate = 360, .hw_value = 9, },
{ .bitrate = 480, .hw_value = 10, },
{ .bitrate = 540, .hw_value = 11, },
};
static const struct ieee80211_channel rtl818x_channels[] = {
{ .center_freq = 2412 },
{ .center_freq = 2417 },
{ .center_freq = 2422 },
{ .center_freq = 2427 },
{ .center_freq = 2432 },
{ .center_freq = 2437 },
{ .center_freq = 2442 },
{ .center_freq = 2447 },
{ .center_freq = 2452 },
{ .center_freq = 2457 },
{ .center_freq = 2462 },
{ .center_freq = 2467 },
{ .center_freq = 2472 },
{ .center_freq = 2484 },
};
static void rtl8187_iowrite_async_cb(struct urb *urb)
{
kfree(urb->context);
usb_free_urb(urb);
}
static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
void *data, u16 len)
{
struct usb_ctrlrequest *dr;
struct urb *urb;
struct rtl8187_async_write_data {
u8 data[4];
struct usb_ctrlrequest dr;
} *buf;
int rc;
buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
if (!buf)
return;
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
kfree(buf);
return;
}
dr = &buf->dr;
dr->bRequestType = RTL8187_REQT_WRITE;
dr->bRequest = RTL8187_REQ_SET_REG;
dr->wValue = addr;
dr->wIndex = 0;
dr->wLength = cpu_to_le16(len);
memcpy(buf, data, len);
usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
(unsigned char *)dr, buf, len,
rtl8187_iowrite_async_cb, buf);
rc = usb_submit_urb(urb, GFP_ATOMIC);
if (rc < 0) {
kfree(buf);
usb_free_urb(urb);
}
}
static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
__le32 *addr, u32 val)
{
__le32 buf = cpu_to_le32(val);
rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
&buf, sizeof(buf));
}
void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
{
struct rtl8187_priv *priv = dev->priv;
data <<= 8;
data |= addr | 0x80;
rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
msleep(1);
}
static void rtl8187_tx_cb(struct urb *urb)
{
struct sk_buff *skb = (struct sk_buff *)urb->context;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hw *hw = info->driver_data[0];
usb_free_urb(info->driver_data[1]);
skb_pull(skb, sizeof(struct rtl8187_tx_hdr));
memset(&info->status, 0, sizeof(info->status));
info->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(hw, skb);
}
static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct rtl8187_priv *priv = dev->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct rtl8187_tx_hdr *hdr;
struct urb *urb;
__le16 rts_dur = 0;
u32 flags;
int rc;
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
kfree_skb(skb);
return 0;
}
flags = skb->len;
flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data))
flags |= RTL8187_TX_FLAG_MORE_FRAG;
if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
flags |= RTL8187_TX_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->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
flags |= RTL8187_TX_FLAG_CTS;
flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
}
hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
hdr->flags = cpu_to_le32(flags);
hdr->len = 0;
hdr->rts_duration = rts_dur;
hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
info->driver_data[0] = dev;
info->driver_data[1] = urb;
usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
hdr, skb->len, rtl8187_tx_cb, skb);
rc = usb_submit_urb(urb, GFP_ATOMIC);
if (rc < 0) {
usb_free_urb(urb);
kfree_skb(skb);
}
return 0;
}
static void rtl8187_rx_cb(struct urb *urb)
{
struct sk_buff *skb = (struct sk_buff *)urb->context;
struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
struct ieee80211_hw *dev = info->dev;
struct rtl8187_priv *priv = dev->priv;
struct rtl8187_rx_hdr *hdr;
struct ieee80211_rx_status rx_status = { 0 };
int rate, signal;
u32 flags;
spin_lock(&priv->rx_queue.lock);
if (skb->next)
__skb_unlink(skb, &priv->rx_queue);
else {
spin_unlock(&priv->rx_queue.lock);
return;
}
spin_unlock(&priv->rx_queue.lock);
if (unlikely(urb->status)) {
usb_free_urb(urb);
dev_kfree_skb_irq(skb);
return;
}
skb_put(skb, urb->actual_length);
hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr));
flags = le32_to_cpu(hdr->flags);
skb_trim(skb, flags & 0x0FFF);
signal = hdr->agc >> 1;
rate = (flags >> 20) & 0xF;
if (rate > 3) { /* OFDM rate */
if (signal > 90)
signal = 90;
else if (signal < 25)
signal = 25;
signal = 90 - signal;
} else { /* CCK rate */
if (signal > 95)
signal = 95;
else if (signal < 30)
signal = 30;
signal = 95 - signal;
}
rx_status.antenna = (hdr->signal >> 7) & 1;
rx_status.qual = 64 - min(hdr->noise, (u8)64);
rx_status.signal = signal;
rx_status.rate_idx = rate;
rx_status.freq = dev->conf.channel->center_freq;
rx_status.band = dev->conf.channel->band;
rx_status.mactime = le64_to_cpu(hdr->mac_time);
rx_status.flag |= RX_FLAG_TSFT;
if (flags & (1 << 13))
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
ieee80211_rx_irqsafe(dev, skb, &rx_status);
skb = dev_alloc_skb(RTL8187_MAX_RX);
if (unlikely(!skb)) {
usb_free_urb(urb);
/* TODO check rx queue length and refill *somewhere* */
return;
}
info = (struct rtl8187_rx_info *)skb->cb;
info->urb = urb;
info->dev = dev;
urb->transfer_buffer = skb_tail_pointer(skb);
urb->context = skb;
skb_queue_tail(&priv->rx_queue, skb);
usb_submit_urb(urb, GFP_ATOMIC);
}
static int rtl8187_init_urbs(struct ieee80211_hw *dev)
{
struct rtl8187_priv *priv = dev->priv;
struct urb *entry;
struct sk_buff *skb;
struct rtl8187_rx_info *info;
while (skb_queue_len(&priv->rx_queue) < 8) {
skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
if (!skb)
break;
entry = usb_alloc_urb(0, GFP_KERNEL);
if (!entry) {
kfree_skb(skb);
break;
}
usb_fill_bulk_urb(entry, priv->udev,
usb_rcvbulkpipe(priv->udev, 1),
skb_tail_pointer(skb),
RTL8187_MAX_RX, rtl8187_rx_cb, skb);
info = (struct rtl8187_rx_info *)skb->cb;
info->urb = entry;
info->dev = dev;
skb_queue_tail(&priv->rx_queue, skb);
usb_submit_urb(entry, GFP_KERNEL);
}
return 0;
}
static int rtl8187_init_hw(struct ieee80211_hw *dev)
{
struct rtl8187_priv *priv = dev->priv;
u8 reg;
int i;
/* reset */
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
msleep(200);
rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
msleep(200);
reg = rtl818x_ioread8(priv, &priv->map->CMD);
reg &= (1 << 1);
reg |= RTL818X_CMD_RESET;
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
i = 10;
do {
msleep(2);
if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
RTL818X_CMD_RESET))
break;
} while (--i);
if (!i) {
printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
return -ETIMEDOUT;
}
/* reload registers from eeprom */
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
i = 10;
do {
msleep(4);
if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
RTL818X_EEPROM_CMD_CONFIG))
break;
} while (--i);
if (!i) {
printk(KERN_ERR "%s: eeprom reset timeout!\n",
wiphy_name(dev->wiphy));
return -ETIMEDOUT;
}
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM, RTL8225_ANAPARAM_ON);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, RTL8225_ANAPARAM2_ON);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
/* setup card */
rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
reg &= 0x3F;
reg |= 0x80;
rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
// TODO: set RESP_RATE and BRSR properly
rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
/* host_usb_init */
rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
msleep(100);
rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
msleep(100);
priv->rf->init(dev);
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
return 0;
}
static int rtl8187_start(struct ieee80211_hw *dev)
{
struct rtl8187_priv *priv = dev->priv;
u32 reg;
int ret;
ret = rtl8187_init_hw(dev);
if (ret)
return ret;
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
rtl8187_init_urbs(dev);
reg = RTL818X_RX_CONF_ONLYERLPKT |
RTL818X_RX_CONF_RX_AUTORESETPHY |
RTL818X_RX_CONF_BSSID |
RTL818X_RX_CONF_MGMT |
RTL818X_RX_CONF_DATA |
(7 << 13 /* RX FIFO threshold NONE */) |
(7 << 10 /* MAX RX DMA */) |
RTL818X_RX_CONF_BROADCAST |
RTL818X_RX_CONF_NICMAC;
priv->rx_conf = reg;
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;
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_FEEDBACK_ANT;
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
reg = RTL818X_TX_CONF_CW_MIN |
(7 << 21 /* MAX TX DMA */) |
RTL818X_TX_CONF_NO_ICV;
rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
reg = rtl818x_ioread8(priv, &priv->map->CMD);
reg |= RTL818X_CMD_TX_ENABLE;
reg |= RTL818X_CMD_RX_ENABLE;
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
return 0;
}
static void rtl8187_stop(struct ieee80211_hw *dev)
{
struct rtl8187_priv *priv = dev->priv;
struct rtl8187_rx_info *info;
struct sk_buff *skb;
u32 reg;
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
reg = rtl818x_ioread8(priv, &priv->map->CMD);
reg &= ~RTL818X_CMD_TX_ENABLE;
reg &= ~RTL818X_CMD_RX_ENABLE;
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
priv->rf->stop(dev);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
while ((skb = skb_dequeue(&priv->rx_queue))) {
info = (struct rtl8187_rx_info *)skb->cb;
usb_kill_urb(info->urb);
kfree_skb(skb);
}
return;
}
static int rtl8187_add_interface(struct ieee80211_hw *dev,
struct ieee80211_if_init_conf *conf)
{
struct rtl8187_priv *priv = dev->priv;
int i;
if (priv->mode != IEEE80211_IF_TYPE_MNTR)
return -EOPNOTSUPP;
switch (conf->type) {
case IEEE80211_IF_TYPE_STA:
priv->mode = conf->type;
break;
default:
return -EOPNOTSUPP;
}
priv->vif = conf->vif;
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],
((u8 *)conf->mac_addr)[i]);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
return 0;
}
static void rtl8187_remove_interface(struct ieee80211_hw *dev,
struct ieee80211_if_init_conf *conf)
{
struct rtl8187_priv *priv = dev->priv;
priv->mode = IEEE80211_IF_TYPE_MNTR;
priv->vif = NULL;
}
static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
{
struct rtl8187_priv *priv = dev->priv;
u32 reg;
reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
/* Enable TX loopback on MAC level to avoid TX during channel
* changes, as this has be seen to causes problems and the
* card will stop work until next reset
*/
rtl818x_iowrite32(priv, &priv->map->TX_CONF,
reg | RTL818X_TX_CONF_LOOPBACK_MAC);
msleep(10);
priv->rf->set_chan(dev, conf);
msleep(10);
rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
} else {
rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
}
rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
return 0;
}
static int rtl8187_config_interface(struct ieee80211_hw *dev,
struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf)
{
struct rtl8187_priv *priv = dev->priv;
int i;
for (i = 0; i < ETH_ALEN; i++)
rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
if (is_valid_ether_addr(conf->bssid))
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
else
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
return 0;
}
static void rtl8187_configure_filter(struct ieee80211_hw *dev,
unsigned int changed_flags,
unsigned int *total_flags,
int mc_count, struct dev_addr_list *mclist)
{
struct rtl8187_priv *priv = dev->priv;
if (changed_flags & FIF_FCSFAIL)
priv->rx_conf ^= RTL818X_RX_CONF_FCS;
if (changed_flags & FIF_CONTROL)
priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
if (changed_flags & FIF_OTHER_BSS)
priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
if (*total_flags & FIF_ALLMULTI || mc_count > 0)
priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
else
priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
*total_flags = 0;
if (priv->rx_conf & RTL818X_RX_CONF_FCS)
*total_flags |= FIF_FCSFAIL;
if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
*total_flags |= FIF_CONTROL;
if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
*total_flags |= FIF_OTHER_BSS;
if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
*total_flags |= FIF_ALLMULTI;
rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
}
static const struct ieee80211_ops rtl8187_ops = {
.tx = rtl8187_tx,
.start = rtl8187_start,
.stop = rtl8187_stop,
.add_interface = rtl8187_add_interface,
.remove_interface = rtl8187_remove_interface,
.config = rtl8187_config,
.config_interface = rtl8187_config_interface,
.configure_filter = rtl8187_configure_filter,
};
static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
{
struct ieee80211_hw *dev = eeprom->data;
struct rtl8187_priv *priv = dev->priv;
u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
}
static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
{
struct ieee80211_hw *dev = eeprom->data;
struct rtl8187_priv *priv = dev->priv;
u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
if (eeprom->reg_data_in)
reg |= RTL818X_EEPROM_CMD_WRITE;
if (eeprom->reg_data_out)
reg |= RTL818X_EEPROM_CMD_READ;
if (eeprom->reg_data_clock)
reg |= RTL818X_EEPROM_CMD_CK;
if (eeprom->reg_chip_select)
reg |= RTL818X_EEPROM_CMD_CS;
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
udelay(10);
}
static int __devinit rtl8187_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct ieee80211_hw *dev;
struct rtl8187_priv *priv;
struct eeprom_93cx6 eeprom;
struct ieee80211_channel *channel;
u16 txpwr, reg;
int err, i;
DECLARE_MAC_BUF(mac);
dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
if (!dev) {
printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
return -ENOMEM;
}
priv = dev->priv;
SET_IEEE80211_DEV(dev, &intf->dev);
usb_set_intfdata(intf, dev);
priv->udev = udev;
usb_get_dev(udev);
skb_queue_head_init(&priv->rx_queue);
BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
priv->map = (struct rtl818x_csr *)0xFF00;
priv->band.band = IEEE80211_BAND_2GHZ;
priv->band.channels = priv->channels;
priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
priv->band.bitrates = priv->rates;
priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
priv->mode = IEEE80211_IF_TYPE_MNTR;
dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_SIGNAL_UNSPEC;
dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
dev->queues = 1;
dev->max_signal = 65;
eeprom.data = dev;
eeprom.register_read = rtl8187_eeprom_register_read;
eeprom.register_write = rtl8187_eeprom_register_write;
if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
eeprom.width = PCI_EEPROM_WIDTH_93C66;
else
eeprom.width = PCI_EEPROM_WIDTH_93C46;
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
udelay(10);
eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
(__le16 __force *)dev->wiphy->perm_addr, 3);
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
"generated MAC address\n");
random_ether_addr(dev->wiphy->perm_addr);
}
channel = priv->channels;
for (i = 0; i < 3; i++) {
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
&txpwr);
(*channel++).hw_value = txpwr & 0xFF;
(*channel++).hw_value = txpwr >> 8;
}
for (i = 0; i < 2; i++) {
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
&txpwr);
(*channel++).hw_value = txpwr & 0xFF;
(*channel++).hw_value = txpwr >> 8;
}
for (i = 0; i < 2; i++) {
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
&txpwr);
(*channel++).hw_value = txpwr & 0xFF;
(*channel++).hw_value = txpwr >> 8;
}
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
&priv->txpwr_base);
reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
/* 0 means asic B-cut, we should use SW 3 wire
* bit-by-bit banging for radio. 1 means we can use
* USB specific request to write radio registers */
priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
priv->rf = rtl8187_detect_rf(dev);
err = ieee80211_register_hw(dev);
if (err) {
printk(KERN_ERR "rtl8187: Cannot register device\n");
goto err_free_dev;
}
printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
priv->asic_rev, priv->rf->name);
return 0;
err_free_dev:
ieee80211_free_hw(dev);
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
return err;
}
static void __devexit rtl8187_disconnect(struct usb_interface *intf)
{
struct ieee80211_hw *dev = usb_get_intfdata(intf);
struct rtl8187_priv *priv;
if (!dev)
return;
ieee80211_unregister_hw(dev);
priv = dev->priv;
usb_put_dev(interface_to_usbdev(intf));
ieee80211_free_hw(dev);
}
static struct usb_driver rtl8187_driver = {
.name = KBUILD_MODNAME,
.id_table = rtl8187_table,
.probe = rtl8187_probe,
.disconnect = rtl8187_disconnect,
};
static int __init rtl8187_init(void)
{
return usb_register(&rtl8187_driver);
}
static void __exit rtl8187_exit(void)
{
usb_deregister(&rtl8187_driver);
}
module_init(rtl8187_init);
module_exit(rtl8187_exit);
