![Oliver Neukum](/assets/img/avatar_default.png)
This fixes resource leaks in error cases due to urb submission failures. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
865 lines
24 KiB
C
865 lines
24 KiB
C
/*
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* Linux device driver for RTL8187
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*
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* Copyright 2007 Michael Wu <flamingice@sourmilk.net>
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* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
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*
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* Based on the r8187 driver, which is:
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* Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
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*
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* Magic delays and register offsets below are taken from the original
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* r8187 driver sources. Thanks to Realtek for their support!
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/usb.h>
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#include <linux/delay.h>
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#include <linux/etherdevice.h>
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#include <linux/eeprom_93cx6.h>
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#include <net/mac80211.h>
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#include "rtl8187.h"
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#include "rtl8187_rtl8225.h"
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MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
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MODULE_DESCRIPTION("RTL8187 USB wireless driver");
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MODULE_LICENSE("GPL");
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static struct usb_device_id rtl8187_table[] __devinitdata = {
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/* Realtek */
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{USB_DEVICE(0x0bda, 0x8187)},
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/* Netgear */
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{USB_DEVICE(0x0846, 0x6100)},
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{USB_DEVICE(0x0846, 0x6a00)},
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/* HP */
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{USB_DEVICE(0x03f0, 0xca02)},
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/* Sitecom */
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{USB_DEVICE(0x0df6, 0x000d)},
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{}
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};
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MODULE_DEVICE_TABLE(usb, rtl8187_table);
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static const struct ieee80211_rate rtl818x_rates[] = {
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{ .bitrate = 10, .hw_value = 0, },
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{ .bitrate = 20, .hw_value = 1, },
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{ .bitrate = 55, .hw_value = 2, },
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{ .bitrate = 110, .hw_value = 3, },
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{ .bitrate = 60, .hw_value = 4, },
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{ .bitrate = 90, .hw_value = 5, },
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{ .bitrate = 120, .hw_value = 6, },
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{ .bitrate = 180, .hw_value = 7, },
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{ .bitrate = 240, .hw_value = 8, },
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{ .bitrate = 360, .hw_value = 9, },
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{ .bitrate = 480, .hw_value = 10, },
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{ .bitrate = 540, .hw_value = 11, },
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};
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static const struct ieee80211_channel rtl818x_channels[] = {
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{ .center_freq = 2412 },
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{ .center_freq = 2417 },
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{ .center_freq = 2422 },
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{ .center_freq = 2427 },
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{ .center_freq = 2432 },
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{ .center_freq = 2437 },
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{ .center_freq = 2442 },
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{ .center_freq = 2447 },
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{ .center_freq = 2452 },
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{ .center_freq = 2457 },
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{ .center_freq = 2462 },
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{ .center_freq = 2467 },
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{ .center_freq = 2472 },
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{ .center_freq = 2484 },
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};
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static void rtl8187_iowrite_async_cb(struct urb *urb)
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{
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kfree(urb->context);
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usb_free_urb(urb);
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}
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static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr,
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void *data, u16 len)
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{
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struct usb_ctrlrequest *dr;
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struct urb *urb;
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struct rtl8187_async_write_data {
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u8 data[4];
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struct usb_ctrlrequest dr;
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} *buf;
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int rc;
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buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
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if (!buf)
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return;
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urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!urb) {
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kfree(buf);
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return;
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}
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dr = &buf->dr;
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dr->bRequestType = RTL8187_REQT_WRITE;
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dr->bRequest = RTL8187_REQ_SET_REG;
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dr->wValue = addr;
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dr->wIndex = 0;
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dr->wLength = cpu_to_le16(len);
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memcpy(buf, data, len);
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usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0),
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(unsigned char *)dr, buf, len,
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rtl8187_iowrite_async_cb, buf);
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rc = usb_submit_urb(urb, GFP_ATOMIC);
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if (rc < 0) {
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kfree(buf);
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usb_free_urb(urb);
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}
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}
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static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv,
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__le32 *addr, u32 val)
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{
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__le32 buf = cpu_to_le32(val);
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rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr),
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&buf, sizeof(buf));
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}
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void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
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{
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struct rtl8187_priv *priv = dev->priv;
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data <<= 8;
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data |= addr | 0x80;
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rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF);
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rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF);
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rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF);
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rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF);
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msleep(1);
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}
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static void rtl8187_tx_cb(struct urb *urb)
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{
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struct ieee80211_tx_status status;
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struct sk_buff *skb = (struct sk_buff *)urb->context;
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struct rtl8187_tx_info *info = (struct rtl8187_tx_info *)skb->cb;
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memset(&status, 0, sizeof(status));
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usb_free_urb(info->urb);
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if (info->control)
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memcpy(&status.control, info->control, sizeof(status.control));
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kfree(info->control);
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skb_pull(skb, sizeof(struct rtl8187_tx_hdr));
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status.flags |= IEEE80211_TX_STATUS_ACK;
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ieee80211_tx_status_irqsafe(info->dev, skb, &status);
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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 ieee80211_tx_control *control)
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{
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struct rtl8187_priv *priv = dev->priv;
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struct rtl8187_tx_hdr *hdr;
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struct rtl8187_tx_info *info;
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struct urb *urb;
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__le16 rts_dur = 0;
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u32 flags;
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int rc;
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urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!urb) {
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kfree_skb(skb);
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return 0;
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}
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flags = skb->len;
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flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
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BUG_ON(!control->tx_rate);
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flags |= control->tx_rate->hw_value << 24;
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if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data))
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flags |= RTL8187_TX_FLAG_MORE_FRAG;
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if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
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BUG_ON(!control->rts_cts_rate);
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flags |= RTL8187_TX_FLAG_RTS;
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flags |= control->rts_cts_rate->hw_value << 19;
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rts_dur = ieee80211_rts_duration(dev, priv->vif,
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skb->len, control);
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} else if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
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BUG_ON(!control->rts_cts_rate);
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flags |= RTL8187_TX_FLAG_CTS;
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flags |= control->rts_cts_rate->hw_value << 19;
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}
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hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
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hdr->flags = cpu_to_le32(flags);
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hdr->len = 0;
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hdr->rts_duration = rts_dur;
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hdr->retry = cpu_to_le32(control->retry_limit << 8);
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info = (struct rtl8187_tx_info *)skb->cb;
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info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC);
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info->urb = urb;
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info->dev = dev;
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usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
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hdr, skb->len, rtl8187_tx_cb, skb);
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rc = usb_submit_urb(urb, GFP_ATOMIC);
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if (rc < 0) {
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usb_free_urb(urb);
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kfree_skb(skb);
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}
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return 0;
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}
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static void rtl8187_rx_cb(struct urb *urb)
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{
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struct sk_buff *skb = (struct sk_buff *)urb->context;
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struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
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struct ieee80211_hw *dev = info->dev;
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struct rtl8187_priv *priv = dev->priv;
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struct rtl8187_rx_hdr *hdr;
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struct ieee80211_rx_status rx_status = { 0 };
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int rate, signal;
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u32 flags;
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spin_lock(&priv->rx_queue.lock);
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if (skb->next)
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__skb_unlink(skb, &priv->rx_queue);
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else {
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spin_unlock(&priv->rx_queue.lock);
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return;
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}
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spin_unlock(&priv->rx_queue.lock);
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if (unlikely(urb->status)) {
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usb_free_urb(urb);
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dev_kfree_skb_irq(skb);
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return;
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}
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skb_put(skb, urb->actual_length);
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hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr));
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flags = le32_to_cpu(hdr->flags);
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skb_trim(skb, flags & 0x0FFF);
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signal = hdr->agc >> 1;
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rate = (flags >> 20) & 0xF;
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if (rate > 3) { /* OFDM rate */
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if (signal > 90)
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signal = 90;
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else if (signal < 25)
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signal = 25;
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signal = 90 - signal;
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} else { /* CCK rate */
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if (signal > 95)
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signal = 95;
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else if (signal < 30)
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signal = 30;
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signal = 95 - signal;
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}
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rx_status.antenna = (hdr->signal >> 7) & 1;
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rx_status.signal = 64 - min(hdr->noise, (u8)64);
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rx_status.ssi = signal;
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rx_status.rate_idx = rate;
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rx_status.freq = dev->conf.channel->center_freq;
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rx_status.band = dev->conf.channel->band;
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rx_status.mactime = le64_to_cpu(hdr->mac_time);
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rx_status.flag |= RX_FLAG_TSFT;
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if (flags & (1 << 13))
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rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
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ieee80211_rx_irqsafe(dev, skb, &rx_status);
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skb = dev_alloc_skb(RTL8187_MAX_RX);
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if (unlikely(!skb)) {
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usb_free_urb(urb);
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/* TODO check rx queue length and refill *somewhere* */
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return;
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}
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info = (struct rtl8187_rx_info *)skb->cb;
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info->urb = urb;
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info->dev = dev;
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urb->transfer_buffer = skb_tail_pointer(skb);
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urb->context = skb;
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skb_queue_tail(&priv->rx_queue, skb);
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usb_submit_urb(urb, GFP_ATOMIC);
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}
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static int rtl8187_init_urbs(struct ieee80211_hw *dev)
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{
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struct rtl8187_priv *priv = dev->priv;
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struct urb *entry;
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struct sk_buff *skb;
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struct rtl8187_rx_info *info;
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while (skb_queue_len(&priv->rx_queue) < 8) {
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skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
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if (!skb)
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break;
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entry = usb_alloc_urb(0, GFP_KERNEL);
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if (!entry) {
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kfree_skb(skb);
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break;
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}
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usb_fill_bulk_urb(entry, priv->udev,
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usb_rcvbulkpipe(priv->udev, 1),
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skb_tail_pointer(skb),
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RTL8187_MAX_RX, rtl8187_rx_cb, skb);
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info = (struct rtl8187_rx_info *)skb->cb;
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info->urb = entry;
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info->dev = dev;
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skb_queue_tail(&priv->rx_queue, skb);
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usb_submit_urb(entry, GFP_KERNEL);
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}
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return 0;
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}
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static int rtl8187_init_hw(struct ieee80211_hw *dev)
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{
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struct rtl8187_priv *priv = dev->priv;
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u8 reg;
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int i;
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/* reset */
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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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, RTL8225_ANAPARAM_ON);
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rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, 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);
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rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
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msleep(200);
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rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10);
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rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11);
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rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00);
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msleep(200);
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reg = rtl818x_ioread8(priv, &priv->map->CMD);
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reg &= (1 << 1);
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reg |= RTL818X_CMD_RESET;
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rtl818x_iowrite8(priv, &priv->map->CMD, reg);
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i = 10;
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do {
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msleep(2);
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if (!(rtl818x_ioread8(priv, &priv->map->CMD) &
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RTL818X_CMD_RESET))
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break;
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} while (--i);
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if (!i) {
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printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy));
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return -ETIMEDOUT;
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}
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/* reload registers from eeprom */
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
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i = 10;
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do {
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msleep(4);
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if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) &
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RTL818X_EEPROM_CMD_CONFIG))
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break;
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} while (--i);
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if (!i) {
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printk(KERN_ERR "%s: eeprom reset timeout!\n",
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wiphy_name(dev->wiphy));
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return -ETIMEDOUT;
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}
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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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, RTL8225_ANAPARAM_ON);
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rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, 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);
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/* setup card */
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rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
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rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
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rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
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rtl818x_iowrite8(priv, &priv->map->GPIO, 1);
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rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF);
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG1);
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reg &= 0x3F;
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reg |= 0x80;
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rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg);
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
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rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
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rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
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rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
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// TODO: set RESP_RATE and BRSR properly
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rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
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rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
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/* host_usb_init */
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rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0);
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rtl818x_iowrite8(priv, &priv->map->GPIO, 0);
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reg = rtl818x_ioread8(priv, (u8 *)0xFE53);
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rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7));
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rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8));
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rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20);
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rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0);
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rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80);
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rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80);
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rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80);
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msleep(100);
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rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008);
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rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF);
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rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044);
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
|
|
rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44);
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7);
|
|
msleep(100);
|
|
|
|
priv->rf->init(dev);
|
|
|
|
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
|
|
reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
|
|
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
|
|
rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10);
|
|
rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80);
|
|
rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60);
|
|
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8187_start(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
u32 reg;
|
|
int ret;
|
|
|
|
ret = rtl8187_init_hw(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
|
|
|
|
rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
|
|
rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
|
|
|
|
rtl8187_init_urbs(dev);
|
|
|
|
reg = RTL818X_RX_CONF_ONLYERLPKT |
|
|
RTL818X_RX_CONF_RX_AUTORESETPHY |
|
|
RTL818X_RX_CONF_BSSID |
|
|
RTL818X_RX_CONF_MGMT |
|
|
RTL818X_RX_CONF_DATA |
|
|
(7 << 13 /* RX FIFO threshold NONE */) |
|
|
(7 << 10 /* MAX RX DMA */) |
|
|
RTL818X_RX_CONF_BROADCAST |
|
|
RTL818X_RX_CONF_NICMAC;
|
|
|
|
priv->rx_conf = reg;
|
|
rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
|
|
reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
|
|
reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
|
|
rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
|
|
reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
|
|
reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
|
|
reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
|
|
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
|
|
|
|
reg = RTL818X_TX_CONF_CW_MIN |
|
|
(7 << 21 /* MAX TX DMA */) |
|
|
RTL818X_TX_CONF_NO_ICV;
|
|
rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->CMD);
|
|
reg |= RTL818X_CMD_TX_ENABLE;
|
|
reg |= RTL818X_CMD_RX_ENABLE;
|
|
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8187_stop(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
struct rtl8187_rx_info *info;
|
|
struct sk_buff *skb;
|
|
u32 reg;
|
|
|
|
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->CMD);
|
|
reg &= ~RTL818X_CMD_TX_ENABLE;
|
|
reg &= ~RTL818X_CMD_RX_ENABLE;
|
|
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
|
|
|
|
priv->rf->stop(dev);
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
|
|
reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
|
|
rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
|
|
while ((skb = skb_dequeue(&priv->rx_queue))) {
|
|
info = (struct rtl8187_rx_info *)skb->cb;
|
|
usb_kill_urb(info->urb);
|
|
kfree_skb(skb);
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int rtl8187_add_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
int i;
|
|
|
|
if (priv->mode != IEEE80211_IF_TYPE_MNTR)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (conf->type) {
|
|
case IEEE80211_IF_TYPE_STA:
|
|
priv->mode = conf->type;
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
priv->vif = conf->vif;
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
rtl818x_iowrite8(priv, &priv->map->MAC[i],
|
|
((u8 *)conf->mac_addr)[i]);
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8187_remove_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
priv->mode = IEEE80211_IF_TYPE_MNTR;
|
|
priv->vif = NULL;
|
|
}
|
|
|
|
static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
u32 reg;
|
|
|
|
reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
|
|
/* Enable TX loopback on MAC level to avoid TX during channel
|
|
* changes, as this has be seen to causes problems and the
|
|
* card will stop work until next reset
|
|
*/
|
|
rtl818x_iowrite32(priv, &priv->map->TX_CONF,
|
|
reg | RTL818X_TX_CONF_LOOPBACK_MAC);
|
|
msleep(10);
|
|
priv->rf->set_chan(dev, conf);
|
|
msleep(10);
|
|
rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
|
|
|
|
if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
|
|
rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
|
|
rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
|
|
rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
|
|
rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
|
|
} else {
|
|
rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
|
|
rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
|
|
rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
|
|
rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
|
|
}
|
|
|
|
rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
|
|
rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100);
|
|
rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
|
|
rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100);
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8187_config_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_if_conf *conf)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
int i;
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
|
|
|
|
if (is_valid_ether_addr(conf->bssid))
|
|
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
|
|
else
|
|
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8187_configure_filter(struct ieee80211_hw *dev,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
int mc_count, struct dev_addr_list *mclist)
|
|
{
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
|
|
if (changed_flags & FIF_FCSFAIL)
|
|
priv->rx_conf ^= RTL818X_RX_CONF_FCS;
|
|
if (changed_flags & FIF_CONTROL)
|
|
priv->rx_conf ^= RTL818X_RX_CONF_CTRL;
|
|
if (changed_flags & FIF_OTHER_BSS)
|
|
priv->rx_conf ^= RTL818X_RX_CONF_MONITOR;
|
|
if (*total_flags & FIF_ALLMULTI || mc_count > 0)
|
|
priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
|
|
else
|
|
priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
|
|
|
|
*total_flags = 0;
|
|
|
|
if (priv->rx_conf & RTL818X_RX_CONF_FCS)
|
|
*total_flags |= FIF_FCSFAIL;
|
|
if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
|
|
*total_flags |= FIF_CONTROL;
|
|
if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
|
|
*total_flags |= FIF_OTHER_BSS;
|
|
if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
|
|
*total_flags |= FIF_ALLMULTI;
|
|
|
|
rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf);
|
|
}
|
|
|
|
static const struct ieee80211_ops rtl8187_ops = {
|
|
.tx = rtl8187_tx,
|
|
.start = rtl8187_start,
|
|
.stop = rtl8187_stop,
|
|
.add_interface = rtl8187_add_interface,
|
|
.remove_interface = rtl8187_remove_interface,
|
|
.config = rtl8187_config,
|
|
.config_interface = rtl8187_config_interface,
|
|
.configure_filter = rtl8187_configure_filter,
|
|
};
|
|
|
|
static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)
|
|
{
|
|
struct ieee80211_hw *dev = eeprom->data;
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
|
|
|
|
eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
|
|
eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
|
|
eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
|
|
eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
|
|
}
|
|
|
|
static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom)
|
|
{
|
|
struct ieee80211_hw *dev = eeprom->data;
|
|
struct rtl8187_priv *priv = dev->priv;
|
|
u8 reg = RTL818X_EEPROM_CMD_PROGRAM;
|
|
|
|
if (eeprom->reg_data_in)
|
|
reg |= RTL818X_EEPROM_CMD_WRITE;
|
|
if (eeprom->reg_data_out)
|
|
reg |= RTL818X_EEPROM_CMD_READ;
|
|
if (eeprom->reg_data_clock)
|
|
reg |= RTL818X_EEPROM_CMD_CK;
|
|
if (eeprom->reg_chip_select)
|
|
reg |= RTL818X_EEPROM_CMD_CS;
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
|
|
udelay(10);
|
|
}
|
|
|
|
static int __devinit rtl8187_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct ieee80211_hw *dev;
|
|
struct rtl8187_priv *priv;
|
|
struct eeprom_93cx6 eeprom;
|
|
struct ieee80211_channel *channel;
|
|
u16 txpwr, reg;
|
|
int err, i;
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops);
|
|
if (!dev) {
|
|
printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv = dev->priv;
|
|
|
|
SET_IEEE80211_DEV(dev, &intf->dev);
|
|
usb_set_intfdata(intf, dev);
|
|
priv->udev = udev;
|
|
|
|
usb_get_dev(udev);
|
|
|
|
skb_queue_head_init(&priv->rx_queue);
|
|
|
|
BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
|
|
BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates));
|
|
|
|
memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels));
|
|
memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates));
|
|
priv->map = (struct rtl818x_csr *)0xFF00;
|
|
|
|
priv->band.band = IEEE80211_BAND_2GHZ;
|
|
priv->band.channels = priv->channels;
|
|
priv->band.n_channels = ARRAY_SIZE(rtl818x_channels);
|
|
priv->band.bitrates = priv->rates;
|
|
priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
|
|
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
|
|
|
|
|
|
priv->mode = IEEE80211_IF_TYPE_MNTR;
|
|
dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
|
|
IEEE80211_HW_RX_INCLUDES_FCS;
|
|
dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
|
|
dev->queues = 1;
|
|
dev->max_rssi = 65;
|
|
dev->max_signal = 64;
|
|
|
|
eeprom.data = dev;
|
|
eeprom.register_read = rtl8187_eeprom_register_read;
|
|
eeprom.register_write = rtl8187_eeprom_register_write;
|
|
if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
|
|
eeprom.width = PCI_EEPROM_WIDTH_93C66;
|
|
else
|
|
eeprom.width = PCI_EEPROM_WIDTH_93C46;
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
|
|
udelay(10);
|
|
|
|
eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR,
|
|
(__le16 __force *)dev->wiphy->perm_addr, 3);
|
|
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
|
|
printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly "
|
|
"generated MAC address\n");
|
|
random_ether_addr(dev->wiphy->perm_addr);
|
|
}
|
|
|
|
channel = priv->channels;
|
|
for (i = 0; i < 3; i++) {
|
|
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i,
|
|
&txpwr);
|
|
(*channel++).hw_value = txpwr & 0xFF;
|
|
(*channel++).hw_value = txpwr >> 8;
|
|
}
|
|
for (i = 0; i < 2; i++) {
|
|
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i,
|
|
&txpwr);
|
|
(*channel++).hw_value = txpwr & 0xFF;
|
|
(*channel++).hw_value = txpwr >> 8;
|
|
}
|
|
for (i = 0; i < 2; i++) {
|
|
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
|
|
&txpwr);
|
|
(*channel++).hw_value = txpwr & 0xFF;
|
|
(*channel++).hw_value = txpwr >> 8;
|
|
}
|
|
|
|
eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE,
|
|
&priv->txpwr_base);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1;
|
|
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1);
|
|
/* 0 means asic B-cut, we should use SW 3 wire
|
|
* bit-by-bit banging for radio. 1 means we can use
|
|
* USB specific request to write radio registers */
|
|
priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3;
|
|
rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
|
|
priv->rf = rtl8187_detect_rf(dev);
|
|
|
|
err = ieee80211_register_hw(dev);
|
|
if (err) {
|
|
printk(KERN_ERR "rtl8187: Cannot register device\n");
|
|
goto err_free_dev;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
|
|
wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
|
|
priv->asic_rev, priv->rf->name);
|
|
|
|
return 0;
|
|
|
|
err_free_dev:
|
|
ieee80211_free_hw(dev);
|
|
usb_set_intfdata(intf, NULL);
|
|
usb_put_dev(udev);
|
|
return err;
|
|
}
|
|
|
|
static void __devexit rtl8187_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
|
struct rtl8187_priv *priv;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
ieee80211_unregister_hw(dev);
|
|
|
|
priv = dev->priv;
|
|
usb_put_dev(interface_to_usbdev(intf));
|
|
ieee80211_free_hw(dev);
|
|
}
|
|
|
|
static struct usb_driver rtl8187_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = rtl8187_table,
|
|
.probe = rtl8187_probe,
|
|
.disconnect = rtl8187_disconnect,
|
|
};
|
|
|
|
static int __init rtl8187_init(void)
|
|
{
|
|
return usb_register(&rtl8187_driver);
|
|
}
|
|
|
|
static void __exit rtl8187_exit(void)
|
|
{
|
|
usb_deregister(&rtl8187_driver);
|
|
}
|
|
|
|
module_init(rtl8187_init);
|
|
module_exit(rtl8187_exit);
|