--- /dev/null
+/*
+ * Linux device driver for RTL8187
+ *
+ * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
+ *
+ * Based on the r8187 driver, which is:
+ * 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>
+ * Hin-Tak Leung <htl10@users.sourceforge.net>
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ * 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/usb.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/eeprom_93cx6.h>
+#include <linux/module.h>
+#include <net/mac80211.h>
+
+#include "rtl8187.h"
+#include "rtl8225.h"
+#ifdef CONFIG_RTL8187_LEDS
+#include "leds.h"
+#endif
+#include "rfkill.h"
+
+MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
+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[] = {
+ /* Asus */
+ {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
+ /* Belkin */
+ {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B},
+ /* Realtek */
+ {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187},
+ {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
+ {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
+ {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
+ /* Surecom */
+ {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
+ /* Logitech */
+ {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
+ /* Netgear */
+ {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
+ {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
+ {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B},
+ /* HP */
+ {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187},
+ /* Sitecom */
+ {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
+ {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
+ {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
+ /* Sphairon Access Systems GmbH */
+ {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
+ /* Dick Smith Electronics */
+ {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
+ /* Abocom */
+ {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
+ /* Qcom */
+ {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
+ /* AirLive */
+ {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
+ /* Linksys */
+ {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B},
+ {}
+};
+
+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);
+}
+
+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);
+ usb_anchor_urb(urb, &priv->anchored);
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc < 0) {
+ kfree(buf);
+ usb_unanchor_urb(urb);
+ }
+ 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);
+}
+
+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->rate_driver_data[0];
+ struct rtl8187_priv *priv = hw->priv;
+
+ skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
+ sizeof(struct rtl8187_tx_hdr));
+ ieee80211_tx_info_clear_status(info);
+
+ if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ if (priv->is_rtl8187b) {
+ skb_queue_tail(&priv->b_tx_status.queue, skb);
+
+ /* queue is "full", discard last items */
+ while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
+ struct sk_buff *old_skb;
+
+ dev_dbg(&priv->udev->dev,
+ "transmit status queue full\n");
+
+ old_skb = skb_dequeue(&priv->b_tx_status.queue);
+ ieee80211_tx_status_irqsafe(hw, old_skb);
+ }
+ return;
+ } else {
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ }
+ }
+ if (priv->is_rtl8187b)
+ ieee80211_tx_status_irqsafe(hw, skb);
+ else {
+ /* Retry information for the RTI8187 is only available by
+ * reading a register in the device. We are in interrupt mode
+ * here, thus queue the skb and finish on a work queue. */
+ skb_queue_tail(&priv->b_tx_status.queue, skb);
+ ieee80211_queue_delayed_work(hw, &priv->work, 0);
+ }
+}
+
+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;
+ __le16 rts_dur = 0;
+ u32 flags;
+ int rc;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ kfree_skb(skb);
+ return;
+ }
+
+ flags = skb->len;
+ flags |= RTL818X_TX_DESC_FLAG_NO_ENC;
+
+ flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
+ 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_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) {
+ 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.rates[0].count - 1) << 8);
+ buf = hdr;
+
+ ep = 2;
+ } else {
+ /* fc needs to be calculated before skb_push() */
+ unsigned int epmap[4] = { 6, 7, 5, 4 };
+ 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.rates[0].count - 1) << 8);
+ hdr->tx_duration =
+ ieee80211_generic_frame_duration(dev, priv->vif,
+ info->band,
+ skb->len, txrate);
+ buf = hdr;
+
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
+ ep = 12;
+ else
+ ep = epmap[skb_get_queue_mapping(skb)];
+ }
+
+ info->rate_driver_data[0] = dev;
+ info->rate_driver_data[1] = urb;
+
+ usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
+ buf, skb->len, rtl8187_tx_cb, skb);
+ urb->transfer_flags |= URB_ZERO_PACKET;
+ usb_anchor_urb(urb, &priv->anchored);
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc < 0) {
+ usb_unanchor_urb(urb);
+ kfree_skb(skb);
+ }
+ usb_free_urb(urb);
+}
+
+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;
+ u32 flags;
+ unsigned long f;
+
+ spin_lock_irqsave(&priv->rx_queue.lock, f);
+ __skb_unlink(skb, &priv->rx_queue);
+ spin_unlock_irqrestore(&priv->rx_queue.lock, f);
+ skb_put(skb, urb->actual_length);
+
+ if (unlikely(urb->status)) {
+ dev_kfree_skb_irq(skb);
+ return;
+ }
+
+ if (!priv->is_rtl8187b) {
+ struct rtl8187_rx_hdr *hdr =
+ (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
+ flags = le32_to_cpu(hdr->flags);
+ /* As with the RTL8187B below, the AGC is used to calculate
+ * signal strength. In this case, the scaling
+ * constants are derived from the output of p54usb.
+ */
+ signal = -4 - ((27 * hdr->agc) >> 6);
+ rx_status.antenna = (hdr->signal >> 7) & 1;
+ rx_status.mactime = le64_to_cpu(hdr->mac_time);
+ } else {
+ struct rtl8187b_rx_hdr *hdr =
+ (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
+ /* 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 signal strength
+ * is 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.
+ */
+ flags = le32_to_cpu(hdr->flags);
+ signal = 14 - hdr->agc / 2;
+ rx_status.antenna = (hdr->rssi >> 7) & 1;
+ rx_status.mactime = le64_to_cpu(hdr->mac_time);
+ }
+
+ rx_status.signal = signal;
+ priv->signal = signal;
+ rate = (flags >> 20) & 0xF;
+ skb_trim(skb, flags & 0x0FFF);
+ rx_status.rate_idx = rate;
+ 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));
+ ieee80211_rx_irqsafe(dev, skb);
+
+ skb = dev_alloc_skb(RTL8187_MAX_RX);
+ if (unlikely(!skb)) {
+ /* 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_anchor_urb(urb, &priv->anchored);
+ if (usb_submit_urb(urb, GFP_ATOMIC)) {
+ usb_unanchor_urb(urb);
+ skb_unlink(skb, &priv->rx_queue);
+ dev_kfree_skb_irq(skb);
+ }
+}
+
+static int rtl8187_init_urbs(struct ieee80211_hw *dev)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ struct urb *entry = NULL;
+ struct sk_buff *skb;
+ struct rtl8187_rx_info *info;
+ int ret = 0;
+
+ while (skb_queue_len(&priv->rx_queue) < 32) {
+ skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
+ if (!skb) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ entry = usb_alloc_urb(0, GFP_KERNEL);
+ if (!entry) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ usb_fill_bulk_urb(entry, priv->udev,
+ usb_rcvbulkpipe(priv->udev,
+ priv->is_rtl8187b ? 3 : 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_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;
+ }
+ }
+ return ret;
+
+err:
+ kfree_skb(skb);
+ usb_kill_anchored_urbs(&priv->anchored);
+ return ret;
+}
+
+static void rtl8187b_status_cb(struct urb *urb)
+{
+ struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context;
+ struct rtl8187_priv *priv = hw->priv;
+ u64 val;
+ unsigned int cmd_type;
+
+ if (unlikely(urb->status))
+ return;
+
+ /*
+ * Read from status buffer:
+ *
+ * bits [30:31] = cmd type:
+ * - 0 indicates tx beacon interrupt
+ * - 1 indicates tx close descriptor
+ *
+ * In the case of tx beacon interrupt:
+ * [0:9] = Last Beacon CW
+ * [10:29] = reserved
+ * [30:31] = 00b
+ * [32:63] = Last Beacon TSF
+ *
+ * If it's tx close descriptor:
+ * [0:7] = Packet Retry Count
+ * [8:14] = RTS Retry Count
+ * [15] = TOK
+ * [16:27] = Sequence No
+ * [28] = LS
+ * [29] = FS
+ * [30:31] = 01b
+ * [32:47] = unused (reserved?)
+ * [48:63] = MAC Used Time
+ */
+ val = le64_to_cpu(priv->b_tx_status.buf);
+
+ cmd_type = (val >> 30) & 0x3;
+ if (cmd_type == 1) {
+ unsigned int pkt_rc, seq_no;
+ bool tok;
+ struct sk_buff *skb;
+ struct ieee80211_hdr *ieee80211hdr;
+ unsigned long flags;
+
+ pkt_rc = val & 0xFF;
+ tok = val & (1 << 15);
+ seq_no = (val >> 16) & 0xFFF;
+
+ spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags);
+ skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) {
+ ieee80211hdr = (struct ieee80211_hdr *)skb->data;
+
+ /*
+ * While testing, it was discovered that the seq_no
+ * doesn't actually contains the sequence number.
+ * Instead of returning just the 12 bits of sequence
+ * number, hardware is returning entire sequence control
+ * (fragment number plus sequence number) in a 12 bit
+ * only field overflowing after some time. As a
+ * workaround, just consider the lower bits, and expect
+ * it's unlikely we wrongly ack some sent data
+ */
+ if ((le16_to_cpu(ieee80211hdr->seq_ctrl)
+ & 0xFFF) == seq_no)
+ break;
+ }
+ if (skb != (struct sk_buff *) &priv->b_tx_status.queue) {
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ __skb_unlink(skb, &priv->b_tx_status.queue);
+ if (tok)
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ info->status.rates[0].count = pkt_rc + 1;
+
+ ieee80211_tx_status_irqsafe(hw, skb);
+ }
+ spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags);
+ }
+
+ usb_anchor_urb(urb, &priv->anchored);
+ if (usb_submit_urb(urb, GFP_ATOMIC))
+ usb_unanchor_urb(urb);
+}
+
+static int rtl8187b_init_status_urb(struct ieee80211_hw *dev)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ struct urb *entry;
+ int ret = 0;
+
+ entry = usb_alloc_urb(0, GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9),
+ &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf),
+ rtl8187b_status_cb, dev);
+
+ usb_anchor_urb(entry, &priv->anchored);
+ ret = usb_submit_urb(entry, GFP_KERNEL);
+ if (ret)
+ usb_unanchor_urb(entry);
+ usb_free_urb(entry);
+
+ return ret;
+}
+
+static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon)
+{
+ u32 anaparam, anaparam2;
+ u8 anaparam3, reg;
+
+ if (!priv->is_rtl8187b) {
+ if (rfon) {
+ anaparam = RTL8187_RTL8225_ANAPARAM_ON;
+ anaparam2 = RTL8187_RTL8225_ANAPARAM2_ON;
+ } else {
+ anaparam = RTL8187_RTL8225_ANAPARAM_OFF;
+ anaparam2 = RTL8187_RTL8225_ANAPARAM2_OFF;
+ }
+ } else {
+ if (rfon) {
+ anaparam = RTL8187B_RTL8225_ANAPARAM_ON;
+ anaparam2 = RTL8187B_RTL8225_ANAPARAM2_ON;
+ anaparam3 = RTL8187B_RTL8225_ANAPARAM3_ON;
+ } else {
+ anaparam = RTL8187B_RTL8225_ANAPARAM_OFF;
+ anaparam2 = RTL8187B_RTL8225_ANAPARAM2_OFF;
+ anaparam3 = RTL8187B_RTL8225_ANAPARAM3_OFF;
+ }
+ }
+
+ 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_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
+ rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2);
+ if (priv->is_rtl8187b)
+ 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,
+ RTL818X_EEPROM_CMD_NORMAL);
+}
+
+static int rtl8187_cmd_reset(struct ieee80211_hw *dev)
+{
+ 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) {
+ wiphy_err(dev->wiphy, "Reset timeout!\n");
+ 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) {
+ wiphy_err(dev->wiphy, "eeprom reset timeout!\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int rtl8187_init_hw(struct ieee80211_hw *dev)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ u8 reg;
+ int res;
+
+ /* reset */
+ rtl8187_set_anaparam(priv, true);
+
+ 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;
+
+ rtl8187_set_anaparam(priv, true);
+
+ /* setup card */
+ rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
+ rtl818x_iowrite8(priv, &priv->map->GPIO0, 0);
+
+ rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
+ rtl818x_iowrite8(priv, &priv->map->GPIO0, 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, 0);
+
+ // 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->GPIO0, 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->GPIO0, 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 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}, {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},
+
+ {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}, {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;
+
+ rtl8187_set_anaparam(priv, true);
+
+ /* Reset PLL sequence on 8187B. Realtek note: reduces power
+ * consumption about 30 mA */
+ 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));
+
+ res = rtl8187_cmd_reset(dev);
+ if (res)
+ return res;
+
+ rtl8187_set_anaparam(priv, true);
+
+ /* BRSR (Basic Rate Set Register) on 8187B looks to be the same as
+ * RESP_RATE on 8187L in Realtek sources: each bit should be each
+ * one of the 12 rates, all are enabled */
+ rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF);
+
+ reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
+ reg |= RTL818X_CW_CONF_PERPACKET_RETRY;
+ rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
+
+ /* Auto Rate Fallback Register (ARFR): 1M-54M setting */
+ rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
+ rtl818x_iowrite8_idx(priv, (u8 *)0xFFE2, 0x00, 1);
+
+ 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);
+
+ /* RFSW_CTRL register */
+ rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2);
+
+ rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
+ rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
+ rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF);
+ msleep(100);
+
+ 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);
+
+ priv->slot_time = 0x9;
+ priv->aifsn[0] = 2; /* AIFSN[AC_VO] */
+ priv->aifsn[1] = 2; /* AIFSN[AC_VI] */
+ priv->aifsn[2] = 7; /* AIFSN[AC_BK] */
+ priv->aifsn[3] = 3; /* AIFSN[AC_BE] */
+ rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0);
+
+ /* ENEDCA flag must always be set, transmit issues? */
+ rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
+
+ return 0;
+}
+
+static void rtl8187_work(struct work_struct *work)
+{
+ /* The RTL8187 returns the retry count through register 0xFFFA. In
+ * addition, it appears to be a cumulative retry count, not the
+ * value for the current TX packet. When multiple TX entries are
+ * waiting in the queue, the retry count will be the total for all.
+ * The "error" may matter for purposes of rate setting, but there is
+ * no other choice with this hardware.
+ */
+ struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
+ work.work);
+ struct ieee80211_tx_info *info;
+ struct ieee80211_hw *dev = priv->dev;
+ static u16 retry;
+ u16 tmp;
+ u16 avg_retry;
+ int length;
+
+ mutex_lock(&priv->conf_mutex);
+ tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
+ length = skb_queue_len(&priv->b_tx_status.queue);
+ if (unlikely(!length))
+ length = 1;
+ if (unlikely(tmp < retry))
+ tmp = retry;
+ avg_retry = (tmp - retry) / length;
+ while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
+ struct sk_buff *old_skb;
+
+ old_skb = skb_dequeue(&priv->b_tx_status.queue);
+ info = IEEE80211_SKB_CB(old_skb);
+ info->status.rates[0].count = avg_retry + 1;
+ if (info->status.rates[0].count > RETRY_COUNT)
+ info->flags &= ~IEEE80211_TX_STAT_ACK;
+ ieee80211_tx_status_irqsafe(dev, old_skb);
+ }
+ retry = tmp;
+ mutex_unlock(&priv->conf_mutex);
+}
+
+static int rtl8187_start(struct ieee80211_hw *dev)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ u32 reg;
+ int ret;
+
+ mutex_lock(&priv->conf_mutex);
+
+ ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) :
+ rtl8187b_init_hw(dev);
+ if (ret)
+ goto rtl8187_start_exit;
+
+ init_usb_anchor(&priv->anchored);
+ priv->dev = dev;
+
+ 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);
+
+ reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
+ 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);
+
+ rtl818x_iowrite32(priv, &priv->map->TX_CONF,
+ RTL818X_TX_CONF_HW_SEQNUM |
+ RTL818X_TX_CONF_DISREQQSIZE |
+ (RETRY_COUNT << 8 /* short retry limit */) |
+ (RETRY_COUNT << 0 /* long retry limit */) |
+ (7 << 21 /* MAX TX DMA */));
+ 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;
+ }
+
+ rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
+
+ rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
+ rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
+
+ ret = rtl8187_init_urbs(dev);
+ if (ret)
+ goto rtl8187_start_exit;
+
+ 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;
+ 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;
+ reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL;
+ 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);
+ INIT_DELAYED_WORK(&priv->work, rtl8187_work);
+
+rtl8187_start_exit:
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+static void rtl8187_stop(struct ieee80211_hw *dev)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ struct sk_buff *skb;
+ u32 reg;
+
+ mutex_lock(&priv->conf_mutex);
+ 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);
+ rtl8187_set_anaparam(priv, false);
+
+ 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->b_tx_status.queue)))
+ dev_kfree_skb_any(skb);
+
+ usb_kill_anchored_urbs(&priv->anchored);
+ mutex_unlock(&priv->conf_mutex);
+
+ if (!priv->is_rtl8187b)
+ 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;
+
+ mutex_lock(&priv->conf_mutex);
+ if (priv->vif)
+ goto exit;
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ break;
+ default:
+ goto exit;
+ }
+
+ 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],
+ ((u8 *)vif->addr)[i]);
+ rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
+
+exit:
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+static void rtl8187_remove_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ mutex_lock(&priv->conf_mutex);
+ priv->vif = NULL;
+ mutex_unlock(&priv->conf_mutex);
+}
+
+static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ struct ieee80211_conf *conf = &dev->conf;
+ u32 reg;
+
+ mutex_lock(&priv->conf_mutex);
+ 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);
+ priv->rf->set_chan(dev, conf);
+ msleep(10);
+ rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
+
+ 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);
+ mutex_unlock(&priv->conf_mutex);
+ return 0;
+}
+
+/*
+ * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for
+ * example. Thus we have to use raw values for AC_*_PARAM register addresses.
+ */
+static __le32 *rtl8187b_ac_addr[4] = {
+ (__le32 *) 0xFFF0, /* AC_VO */
+ (__le32 *) 0xFFF4, /* AC_VI */
+ (__le32 *) 0xFFFC, /* AC_BK */
+ (__le32 *) 0xFFF8, /* AC_BE */
+};
+
+#define SIFS_TIME 0xa
+
+static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
+ bool use_short_preamble)
+{
+ if (priv->is_rtl8187b) {
+ u8 difs, eifs;
+ u16 ack_timeout;
+ int queue;
+
+ if (use_short_slot) {
+ priv->slot_time = 0x9;
+ difs = 0x1c;
+ eifs = 0x53;
+ } else {
+ priv->slot_time = 0x14;
+ difs = 0x32;
+ eifs = 0x5b;
+ }
+ rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
+ rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time);
+ rtl818x_iowrite8(priv, &priv->map->DIFS, difs);
+
+ /*
+ * BRSR+1 on 8187B is in fact EIFS register
+ * Value in units of 4 us
+ */
+ rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs);
+
+ /*
+ * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout
+ * register. In units of 4 us like eifs register
+ * ack_timeout = ack duration + plcp + difs + preamble
+ */
+ ack_timeout = 112 + 48 + difs;
+ if (use_short_preamble)
+ ack_timeout += 72;
+ else
+ ack_timeout += 144;
+ rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER,
+ DIV_ROUND_UP(ack_timeout, 4));
+
+ for (queue = 0; queue < 4; queue++)
+ rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue],
+ priv->aifsn[queue] * priv->slot_time +
+ SIFS_TIME);
+ } else {
+ rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
+ if (use_short_slot) {
+ rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
+ rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
+ rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
+ } else {
+ rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
+ rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
+ rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
+ }
+ }
+}
+
+static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ 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++)
+ rtl818x_iowrite8(priv, &priv->map->BSSID[i],
+ info->bssid[i]);
+
+ if (priv->is_rtl8187b)
+ reg = RTL818X_MSR_ENEDCA;
+ else
+ reg = 0;
+
+ 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;
+
+ rtl818x_iowrite8(priv, &priv->map->MSR, reg);
+
+ mutex_unlock(&priv->conf_mutex);
+ }
+
+ 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,
+ struct netdev_hw_addr_list *mc_list)
+{
+ return netdev_hw_addr_list_count(mc_list);
+}
+
+static void rtl8187_configure_filter(struct ieee80211_hw *dev,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ u64 multicast)
+{
+ 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 || multicast > 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 int rtl8187_conf_tx(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct rtl8187_priv *priv = dev->priv;
+ u8 cw_min, cw_max;
+
+ if (queue > 3)
+ return -EINVAL;
+
+ cw_min = fls(params->cw_min);
+ cw_max = fls(params->cw_max);
+
+ if (priv->is_rtl8187b) {
+ priv->aifsn[queue] = params->aifs;
+
+ /*
+ * This is the structure of AC_*_PARAM registers in 8187B:
+ * - TXOP limit field, bit offset = 16
+ * - ECWmax, bit offset = 12
+ * - ECWmin, bit offset = 8
+ * - AIFS, bit offset = 0
+ */
+ rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue],
+ (params->txop << 16) | (cw_max << 12) |
+ (cw_min << 8) | (params->aifs *
+ priv->slot_time + SIFS_TIME));
+ } else {
+ if (queue != 0)
+ return -EINVAL;
+
+ rtl818x_iowrite8(priv, &priv->map->CW_VAL,
+ cw_min | (cw_max << 4));
+ }
+ return 0;
+}
+
+
+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,
+ .bss_info_changed = rtl8187_bss_info_changed,
+ .prepare_multicast = rtl8187_prepare_multicast,
+ .configure_filter = rtl8187_configure_filter,
+ .conf_tx = rtl8187_conf_tx,
+ .rfkill_poll = rtl8187_rfkill_poll,
+ .get_tsf = rtl8187_get_tsf,
+};
+
+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 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;
+ const char *chip_name;
+ u16 txpwr, reg;
+ u16 product_id = le16_to_cpu(udev->descriptor.idProduct);
+ int err, i;
+ u8 mac_addr[ETH_ALEN];
+
+ dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
+ if (!dev) {
+ printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
+ return -ENOMEM;
+ }
+
+ priv = dev->priv;
+ priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B);
+
+ /* allocate "DMA aware" buffer for register accesses */
+ priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL);
+ if (!priv->io_dmabuf) {
+ err = -ENOMEM;
+ goto err_free_dev;
+ }
+ mutex_init(&priv->io_mutex);
+
+ 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;
+
+
+ dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+ IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_RX_INCLUDES_FCS;
+ /* Initialize rate-control variables */
+ dev->max_rates = 1;
+ dev->max_rate_tries = RETRY_COUNT;
+
+ 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 *)mac_addr, 3);
+ if (!is_valid_ether_addr(mac_addr)) {
+ printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
+ "generated MAC address\n");
+ eth_random_addr(mac_addr);
+ }
+ SET_IEEE80211_PERM_ADDR(dev, mac_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;
+ }
+
+ 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);
+
+ if (!priv->is_rtl8187b) {
+ u32 reg32;
+ reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
+ reg32 &= RTL818X_TX_CONF_HWVER_MASK;
+ switch (reg32) {
+ 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:
+ 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;
+ }
+ }
+
+ 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;
+ }
+ /* Handle the differing rfkill GPIO bit in different models */
+ priv->rfkill_mask = RFKILL_MASK_8187_89_97;
+ if (product_id == 0x8197 || product_id == 0x8198) {
+ eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, ®);
+ if (reg & 0xFF00)
+ priv->rfkill_mask = RFKILL_MASK_8198;
+ }
+ 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"
+ " info!\n");
+
+ priv->rf = rtl8187_detect_rf(dev);
+ 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;
+
+ err = ieee80211_register_hw(dev);
+ if (err) {
+ printk(KERN_ERR "rtl8187: Cannot register device\n");
+ goto err_free_dmabuf;
+ }
+ mutex_init(&priv->conf_mutex);
+ skb_queue_head_init(&priv->b_tx_status.queue);
+
+ wiphy_info(dev->wiphy, "hwaddr %pM, %s V%d + %s, rfkill mask %d\n",
+ mac_addr, chip_name, priv->asic_rev, priv->rf->name,
+ priv->rfkill_mask);
+
+#ifdef CONFIG_RTL8187_LEDS
+ eeprom_93cx6_read(&eeprom, 0x3F, ®);
+ reg &= 0xFF;
+ rtl8187_leds_init(dev, reg);
+#endif
+ rtl8187_rfkill_init(dev);
+
+ return 0;
+
+ err_free_dmabuf:
+ kfree(priv->io_dmabuf);
+ usb_set_intfdata(intf, NULL);
+ usb_put_dev(udev);
+ err_free_dev:
+ ieee80211_free_hw(dev);
+ return err;
+}
+
+static void rtl8187_disconnect(struct usb_interface *intf)
+{
+ struct ieee80211_hw *dev = usb_get_intfdata(intf);
+ struct rtl8187_priv *priv;
+
+ if (!dev)
+ return;
+
+#ifdef CONFIG_RTL8187_LEDS
+ rtl8187_leds_exit(dev);
+#endif
+ rtl8187_rfkill_exit(dev);
+ ieee80211_unregister_hw(dev);
+
+ priv = dev->priv;
+ usb_reset_device(priv->udev);
+ usb_put_dev(interface_to_usbdev(intf));
+ kfree(priv->io_dmabuf);
+ ieee80211_free_hw(dev);
+}
+
+static struct usb_driver rtl8187_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = rtl8187_table,
+ .probe = rtl8187_probe,
+ .disconnect = rtl8187_disconnect,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(rtl8187_driver);
Code Review / kvmfornfv.git / blobdiff