rtl8187_dev.c 36.7 KB
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/*
 * 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.
 *
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 * Magic delays and register offsets below are taken from the original
 * r8187 driver sources.  Thanks to Realtek for their support!
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 *
 * 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>");
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MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
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MODULE_LICENSE("GPL");

static struct usb_device_id rtl8187_table[] __devinitdata = {
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	/* Asus */
	{USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
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	/* Realtek */
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	{USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
	{USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
	{USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
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	/* Netgear */
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	{USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
	{USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
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	/* HP */
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	{USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
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	/* Sitecom */
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	{USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
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	{}
};

MODULE_DEVICE_TABLE(usb, rtl8187_table);

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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 },
};

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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;
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	int rc;
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	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);
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	rc = usb_submit_urb(urb, GFP_ATOMIC);
	if (rc < 0) {
		kfree(buf);
		usb_free_urb(urb);
	}
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}

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));
}

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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;
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	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	struct ieee80211_hw *hw = info->driver_data[0];
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	struct rtl8187_priv *priv = hw->priv;
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	usb_free_urb(info->driver_data[1]);
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	skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
					  sizeof(struct rtl8187_tx_hdr));
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	memset(&info->status, 0, sizeof(info->status));
	info->flags |= IEEE80211_TX_STAT_ACK;
	ieee80211_tx_status_irqsafe(hw, skb);
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}

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static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
	struct rtl8187_priv *priv = dev->priv;
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	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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	struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
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	unsigned int ep;
	void *buf;
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	struct urb *urb;
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	__le16 rts_dur = 0;
	u32 flags;
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	int rc;
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	urb = usb_alloc_urb(0, GFP_ATOMIC);
	if (!urb) {
		kfree_skb(skb);
		return 0;
	}

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	flags = skb->len;
	flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
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	flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
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	if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
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		flags |= RTL8187_TX_FLAG_MORE_FRAG;
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	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
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		flags |= RTL8187_TX_FLAG_RTS;
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		flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
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		rts_dur = ieee80211_rts_duration(dev, priv->vif,
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						 skb->len, info);
	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
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		flags |= RTL8187_TX_FLAG_CTS;
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		flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
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	}
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	if (!priv->is_rtl8187b) {
		struct rtl8187_tx_hdr *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);
		buf = hdr;

		ep = 2;
	} 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 =
			(struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
		struct ieee80211_rate *txrate =
			ieee80211_get_tx_rate(dev, info);
		memset(hdr, 0, sizeof(*hdr));
		hdr->flags = cpu_to_le32(flags);
		hdr->rts_duration = rts_dur;
		hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
		hdr->tx_duration =
			ieee80211_generic_frame_duration(dev, priv->vif,
							 skb->len, txrate);
		buf = hdr;

		if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
			ep = 12;
		else
			ep = epmap[skb_get_queue_mapping(skb)];
	}
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	/* FIXME: The sequence that follows is needed for this driver to
	 * work with mac80211 since "mac80211: fix TX sequence numbers".
	 * As with the temporary code in rt2x00, changes will be needed
	 * to get proper sequence numbers on beacons. In addition, this
	 * patch places the sequence number in the hardware state, which
	 * limits us to a single virtual state.
	 */
	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
			priv->seqno += 0x10;
		ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
		ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
	}

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	info->driver_data[0] = dev;
	info->driver_data[1] = urb;
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	usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
			  buf, skb->len, rtl8187_tx_cb, skb);
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	rc = usb_submit_urb(urb, GFP_ATOMIC);
	if (rc < 0) {
		usb_free_urb(urb);
		kfree_skb(skb);
	}
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	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 ieee80211_rx_status rx_status = { 0 };
	int rate, signal;
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	u32 flags;
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	u32 quality;
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	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);
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	if (!priv->is_rtl8187b) {
		struct rtl8187_rx_hdr *hdr =
			(typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
		flags = le32_to_cpu(hdr->flags);
		signal = hdr->signal & 0x7f;
		rx_status.antenna = (hdr->signal >> 7) & 1;
		rx_status.noise = hdr->noise;
		rx_status.mactime = le64_to_cpu(hdr->mac_time);
		priv->quality = signal;
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		rx_status.qual = priv->quality;
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		priv->noise = hdr->noise;
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		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.signal = signal;
		priv->signal = signal;
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	} else {
		struct rtl8187b_rx_hdr *hdr =
			(typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
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		/* The Realtek datasheet for the RTL8187B shows that the RX
		 * header contains the following quantities: signal quality,
		 * RSSI, AGC, the received power in dB, and the measured SNR.
		 * In testing, none of these quantities show qualitative
		 * agreement with AP signal strength, except for the AGC,
		 * which is inversely proportional to the strength of the
		 * signal. In the following, the quality and signal strength
		 * are derived from the AGC. The arbitrary scaling constants
		 * are chosen to make the results close to the values obtained
		 * for a BCM4312 using b43 as the driver. The noise is ignored
		 * for now.
		 */
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		flags = le32_to_cpu(hdr->flags);
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		quality = 170 - hdr->agc;
		if (quality > 100)
			quality = 100;
		signal = 14 - hdr->agc / 2;
		rx_status.qual = quality;
		priv->quality = quality;
		rx_status.signal = signal;
		priv->signal = signal;
		rx_status.antenna = (hdr->rssi >> 7) & 1;
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		rx_status.mactime = le64_to_cpu(hdr->mac_time);
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		rate = (flags >> 20) & 0xF;
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	}
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	skb_trim(skb, flags & 0x0FFF);
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	rx_status.rate_idx = rate;
	rx_status.freq = dev->conf.channel->center_freq;
	rx_status.band = dev->conf.channel->band;
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	rx_status.flag |= RX_FLAG_TSFT;
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	if (flags & (1 << 13))
		rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
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	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,
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				  usb_rcvbulkpipe(priv->udev,
				  priv->is_rtl8187b ? 3 : 1),
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				  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;
}

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static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
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{
	struct rtl8187_priv *priv = dev->priv;
	u8 reg;
	int i;

	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;
	}

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	return 0;
}

static int rtl8187_init_hw(struct ieee80211_hw *dev)
{
	struct rtl8187_priv *priv = dev->priv;
	u8 reg;
	int res;

	/* 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);
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	rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
			  RTL8187_RTL8225_ANAPARAM_ON);
	rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
			  RTL8187_RTL8225_ANAPARAM2_ON);
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	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);

	res = rtl8187_cmd_reset(dev);
	if (res)
		return res;

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	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
	reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
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	rtl818x_iowrite8(priv, &priv->map->CONFIG3,
			reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
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	rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
			  RTL8187_RTL8225_ANAPARAM_ON);
	rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
			  RTL8187_RTL8225_ANAPARAM2_ON);
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	rtl818x_iowrite8(priv, &priv->map->CONFIG3,
			reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
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	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);
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	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_CONFIG);
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	rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
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	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_NORMAL);
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	rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
	msleep(100);

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	priv->rf->init(dev);
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	rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
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	reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
	rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
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	rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
	rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
	rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
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	rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
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	return 0;
}

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static const u8 rtl8187b_reg_table[][3] = {
	{0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0},
	{0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0},
	{0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0},
	{0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0},

	{0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1},
	{0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1},
	{0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1},
	{0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1},
	{0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1},
	{0xF7, 0x07, 1}, {0xF8, 0x08, 1},

	{0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2},
	{0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2},
	{0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2},
	{0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2},
	{0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2},
	{0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2},
	{0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2},
	{0x73, 0x9A, 2},

	{0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0},
	{0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0},
	{0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0},
	{0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0},
	{0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x91, 0x03, 0},

	{0x4C, 0x00, 2}, {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0},
	{0x8E, 0x08, 0}, {0x8F, 0x00, 0}
};

static int rtl8187b_init_hw(struct ieee80211_hw *dev)
{
	struct rtl8187_priv *priv = dev->priv;
	int res, i;
	u8 reg;

	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_CONFIG);

	reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
	reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT;
	rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
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	rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
			  RTL8187B_RTL8225_ANAPARAM2_ON);
	rtl818x_iowrite32(priv, &priv->map->ANAPARAM,
			  RTL8187B_RTL8225_ANAPARAM_ON);
	rtl818x_iowrite8(priv, &priv->map->ANAPARAM3,
			 RTL8187B_RTL8225_ANAPARAM3_ON);
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	rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10);
	reg = rtl818x_ioread8(priv, (u8 *)0xFF62);
	rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5));
	rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5));

	reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
	reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
	rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);

	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_NORMAL);

	res = rtl8187_cmd_reset(dev);
	if (res)
		return res;

	rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF);
	reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
	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 |
	       RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
	rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);

	rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
	reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
	reg |= RTL818X_RATE_FALLBACK_ENABLE;
	rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);

	rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
	rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1);

	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_CONFIG);
	reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
	rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80);
	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_NORMAL);

	rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
	for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) {
		rtl818x_iowrite8_idx(priv,
				     (u8 *)(uintptr_t)
				     (rtl8187b_reg_table[i][0] | 0xFF00),
				     rtl8187b_reg_table[i][1],
				     rtl8187b_reg_table[i][2]);
	}

	rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
	rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);

	rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1);
	rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1);
	rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1);

	rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001);

	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);

	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_CONFIG);
	reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
	reg |= RTL818X_CONFIG3_ANAPARAM_WRITE;
	rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
			 RTL818X_EEPROM_CMD_NORMAL);

	rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
	rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
	rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
	msleep(1100);

	priv->rf->init(dev);

	reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;
	rtl818x_iowrite8(priv, &priv->map->CMD, reg);
	rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);

	rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4);
	rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00);
	rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
	rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);
	rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F);
	rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00);
	rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01);

	reg = rtl818x_ioread8(priv, (u8 *)0xFFDB);
	rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2));
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3);
	rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3);
	rtl818x_iowrite8(priv, (u8 *)0xFF61, 0);
	rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1);
	rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1);
	rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10);
	rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2);

	rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B);

	rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1);

	return 0;
}

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static int rtl8187_start(struct ieee80211_hw *dev)
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{
	struct rtl8187_priv *priv = dev->priv;
	u32 reg;
	int ret;

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	ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
				     rtl8187b_init_hw(dev);
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	if (ret)
		return ret;

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	if (priv->is_rtl8187b) {
		reg = RTL818X_RX_CONF_MGMT |
		      RTL818X_RX_CONF_DATA |
		      RTL818X_RX_CONF_BROADCAST |
		      RTL818X_RX_CONF_NICMAC |
		      RTL818X_RX_CONF_BSSID |
		      (7 << 13 /* RX FIFO threshold NONE */) |
		      (7 << 10 /* MAX RX DMA */) |
		      RTL818X_RX_CONF_RX_AUTORESETPHY |
		      RTL818X_RX_CONF_ONLYERLPKT |
		      RTL818X_RX_CONF_MULTICAST;
		priv->rx_conf = reg;
		rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);

		rtl818x_iowrite32(priv, &priv->map->TX_CONF,
				  RTL818X_TX_CONF_HW_SEQNUM |
				  RTL818X_TX_CONF_DISREQQSIZE |
				  (7 << 8  /* short retry limit */) |
				  (7 << 0  /* long retry limit */) |
				  (7 << 21 /* MAX TX DMA */));
		rtl8187_init_urbs(dev);
		return 0;
	}

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	rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);

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	rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
	rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);

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	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;

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	priv->rx_conf = reg;
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	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;
}

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static void rtl8187_stop(struct ieee80211_hw *dev)
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{
	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);

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	priv->rf->stop(dev);
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	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);
	}
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	return;
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}

static int rtl8187_add_interface(struct ieee80211_hw *dev,
				 struct ieee80211_if_init_conf *conf)
{
	struct rtl8187_priv *priv = dev->priv;
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	int i;
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	if (priv->mode != IEEE80211_IF_TYPE_MNTR)
		return -EOPNOTSUPP;
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	switch (conf->type) {
	case IEEE80211_IF_TYPE_STA:
		priv->mode = conf->type;
		break;
	default:
		return -EOPNOTSUPP;
	}

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	priv->vif = conf->vif;

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	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);
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	return 0;
}

static void rtl8187_remove_interface(struct ieee80211_hw *dev,
				     struct ieee80211_if_init_conf *conf)
{
	struct rtl8187_priv *priv = dev->priv;
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	priv->mode = IEEE80211_IF_TYPE_MNTR;
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	priv->vif = NULL;
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}

static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
{
	struct rtl8187_priv *priv = dev->priv;
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	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);
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	if (!priv->is_rtl8187b) {
		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);
		}
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	}

	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;
}

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static int rtl8187_config_interface(struct ieee80211_hw *dev,
				    struct ieee80211_vif *vif,
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				    struct ieee80211_if_conf *conf)
{
	struct rtl8187_priv *priv = dev->priv;
	int i;
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	u8 reg;
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	for (i = 0; i < ETH_ALEN; i++)
		rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);

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	if (is_valid_ether_addr(conf->bssid)) {
		reg = RTL818X_MSR_INFRA;
		if (priv->is_rtl8187b)
			reg |= RTL818X_MSR_ENEDCA;
		rtl818x_iowrite8(priv, &priv->map->MSR, reg);
	} else {
		reg = RTL818X_MSR_NO_LINK;
		rtl818x_iowrite8(priv, &priv->map->MSR, reg);
	}
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	return 0;
}

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static void rtl8187_configure_filter(struct ieee80211_hw *dev,
				     unsigned int changed_flags,
				     unsigned int *total_flags,
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				     int mc_count, struct dev_addr_list *mclist)
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{
	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;
941
	if (*total_flags & FIF_ALLMULTI || mc_count > 0)
942
		priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
943 944 945 946
	else
		priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;

	*total_flags = 0;
947 948 949 950 951 952 953

	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;
954 955
	if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
		*total_flags |= FIF_ALLMULTI;
956 957 958 959

	rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
}

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static const struct ieee80211_ops rtl8187_ops = {
	.tx			= rtl8187_tx,
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	.start			= rtl8187_start,
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	.stop			= rtl8187_stop,
	.add_interface		= rtl8187_add_interface,
	.remove_interface	= rtl8187_remove_interface,
	.config			= rtl8187_config,
	.config_interface	= rtl8187_config_interface,
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	.configure_filter	= rtl8187_configure_filter,
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};

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;
1010
	const char *chip_name;
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	u16 txpwr, reg;
	int err, i;
1013
	DECLARE_MAC_BUF(mac);
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	dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
	if (!dev) {
		printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
		return -ENOMEM;
	}

	priv = dev->priv;
1022
	priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
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	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);
1031 1032 1033 1034

	BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
	BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));

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	memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
	memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
	priv->map = (struct rtl818x_csr *)0xFF00;
1038 1039 1040 1041 1042 1043 1044 1045 1046

	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;


1047
	priv->mode = IEEE80211_IF_TYPE_MNTR;
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	dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1049
		     IEEE80211_HW_RX_INCLUDES_FCS;
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	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);
1074 1075
		(*channel++).hw_value = txpwr & 0xFF;
		(*channel++).hw_value = txpwr >> 8;
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	}
	for (i = 0; i < 2; i++) {
		eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
				  &txpwr);
1080 1081
		(*channel++).hw_value = txpwr & 0xFF;
		(*channel++).hw_value = txpwr >> 8;
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	}

	eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
			  &priv->txpwr_base);

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	reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
	rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
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	/* 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;
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	rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
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	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);

1096 1097 1098 1099 1100
	if (!priv->is_rtl8187b) {
		u32 reg32;
		reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
		reg32 &= RTL818X_TX_CONF_HWVER_MASK;
		switch (reg32) {
1101 1102 1103 1104 1105 1106 1107 1108
		case RTL818X_TX_CONF_R8187vD_B:
			/* Some RTL8187B devices have a USB ID of 0x8187
			 * detect them here */
			chip_name = "RTL8187BvB(early)";
			priv->is_rtl8187b = 1;
			priv->hw_rev = RTL8187BvB;
			break;
		case RTL818X_TX_CONF_R8187vD:
1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142
			chip_name = "RTL8187vD";
			break;
		default:
			chip_name = "RTL8187vB (default)";
		}
       } else {
		/*
		 * Force USB request to write radio registers for 8187B, Realtek
		 * only uses it in their sources
		 */
		/*if (priv->asic_rev == 0) {
			printk(KERN_WARNING "rtl8187: Forcing use of USB "
			       "requests to write to radio registers\n");
			priv->asic_rev = 1;
		}*/
		switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
		case RTL818X_R8187B_B:
			chip_name = "RTL8187BvB";
			priv->hw_rev = RTL8187BvB;
			break;
		case RTL818X_R8187B_D:
			chip_name = "RTL8187BvD";
			priv->hw_rev = RTL8187BvD;
			break;
		case RTL818X_R8187B_E:
			chip_name = "RTL8187BvE";
			priv->hw_rev = RTL8187BvE;
			break;
		default:
			chip_name = "RTL8187BvB (default)";
			priv->hw_rev = RTL8187BvB;
		}
	}

1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163
	if (!priv->is_rtl8187b) {
		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;
		}
	} else {
		eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
				  &txpwr);
		(*channel++).hw_value = txpwr & 0xFF;

		eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
		(*channel++).hw_value = txpwr & 0xFF;

		eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
		(*channel++).hw_value = txpwr & 0xFF;
		(*channel++).hw_value = txpwr >> 8;
	}

1164
	if (priv->is_rtl8187b) {
1165 1166 1167
		printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
			"is EXPERIMENTAL, and could damage your\n"
			"         hardware, use at your own risk\n");
1168 1169 1170 1171 1172 1173
		dev->flags |= IEEE80211_HW_SIGNAL_DBM;
	} else {
		dev->flags |= IEEE80211_HW_SIGNAL_UNSPEC;
		dev->max_signal = 65;
	}

1174 1175 1176 1177
	if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
		printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
		       " info!\n");

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	priv->rf = rtl8187_detect_rf(dev);
1179 1180 1181 1182 1183 1184 1185
	dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
				  sizeof(struct rtl8187_tx_hdr) :
				  sizeof(struct rtl8187b_tx_hdr);
	if (!priv->is_rtl8187b)
		dev->queues = 1;
	else
		dev->queues = 4;
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	err = ieee80211_register_hw(dev);
	if (err) {
		printk(KERN_ERR "rtl8187: Cannot register device\n");
		goto err_free_dev;
	}

1193
	printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n",
1194
	       wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
1195
	       chip_name, priv->asic_rev, priv->rf->name);
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	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,
1225
	.disconnect	= __devexit_p(rtl8187_disconnect),
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};

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);