| /* |
| * Linux device driver for RTL8187 |
| * |
| * Copyright 2007 Michael Wu <flamingice@sourmilk.net> |
| * Copyright 2007 Andrea Merello <andreamrl@tiscali.it> |
| * |
| * Based on the r8187 driver, which is: |
| * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al. |
| * |
| * 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/init.h> |
| #include <linux/usb.h> |
| #include <linux/delay.h> |
| #include <linux/etherdevice.h> |
| #include <linux/eeprom_93cx6.h> |
| #include <net/mac80211.h> |
| |
| #include "rtl8187.h" |
| #include "rtl8187_rtl8225.h" |
| #ifdef CONFIG_RTL8187_LEDS |
| #include "rtl8187_leds.h" |
| #endif |
| |
| MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
| MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>"); |
| MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>"); |
| MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>"); |
| MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>"); |
| MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver"); |
| MODULE_LICENSE("GPL"); |
| |
| static struct usb_device_id rtl8187_table[] __devinitdata = { |
| /* 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}, |
| /* 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}, |
| {} |
| }; |
| |
| 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); |
| queue_delayed_work(hw->workqueue, &priv->work, 0); |
| } |
| } |
| |
| static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) |
| { |
| struct rtl8187_priv *priv = dev->priv; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 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 NETDEV_TX_OK; |
| } |
| |
| flags = skb->len; |
| flags |= RTL818X_TX_DESC_FLAG_NO_ENC; |
| |
| flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; |
| if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control)) |
| flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; |
| if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
| flags |= RTL818X_TX_DESC_FLAG_RTS; |
| flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; |
| rts_dur = ieee80211_rts_duration(dev, priv->vif, |
| skb->len, info); |
| } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
| flags |= RTL818X_TX_DESC_FLAG_CTS; |
| flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; |
| } |
| |
| 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 }; |
| struct ieee80211_hdr *tx_hdr = |
| (struct ieee80211_hdr *)(skb->data); |
| u16 fc = le16_to_cpu(tx_hdr->frame_control); |
| |
| struct rtl8187b_tx_hdr *hdr = |
| (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr)); |
| struct ieee80211_rate *txrate = |
| ieee80211_get_tx_rate(dev, info); |
| memset(hdr, 0, sizeof(*hdr)); |
| hdr->flags = cpu_to_le32(flags); |
| hdr->rts_duration = rts_dur; |
| hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); |
| hdr->tx_duration = |
| ieee80211_generic_frame_duration(dev, priv->vif, |
| skb->len, txrate); |
| buf = hdr; |
| |
| if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) |
| ep = 12; |
| else |
| ep = epmap[skb_get_queue_mapping(skb)]; |
| } |
| |
| 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); |
| |
| return NETDEV_TX_OK; |
| } |
| |
| 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; |
| u32 quality; |
| unsigned long f; |
| |
| spin_lock_irqsave(&priv->rx_queue.lock, f); |
| if (skb->next) |
| __skb_unlink(skb, &priv->rx_queue); |
| else { |
| spin_unlock_irqrestore(&priv->rx_queue.lock, f); |
| return; |
| } |
| 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 and quality. In this case, the scaling |
| * constants are derived from the output of p54usb. |
| */ |
| quality = 130 - ((41 * hdr->agc) >> 6); |
| 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 quality and signal strength |
| * are derived from the AGC. The arbitrary scaling constants |
| * are chosen to make the results close to the values obtained |
| * for a BCM4312 using b43 as the driver. The noise is ignored |
| * for now. |
| */ |
| flags = le32_to_cpu(hdr->flags); |
| quality = 170 - hdr->agc; |
| signal = 14 - hdr->agc / 2; |
| rx_status.antenna = (hdr->rssi >> 7) & 1; |
| rx_status.mactime = le64_to_cpu(hdr->mac_time); |
| } |
| |
| if (quality > 100) |
| quality = 100; |
| rx_status.qual = quality; |
| priv->quality = quality; |
| 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.channel->center_freq; |
| rx_status.band = dev->conf.channel->band; |
| rx_status.flag |= RX_FLAG_TSFT; |
| if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) |
| rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; |
| ieee80211_rx_irqsafe(dev, skb, &rx_status); |
| |
| skb = dev_alloc_skb(RTL8187_MAX_RX); |
| if (unlikely(!skb)) { |
| /* 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) < 16) { |
| 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); |
| if (ret) { |
| skb_unlink(skb, &priv->rx_queue); |
| usb_unanchor_urb(entry); |
| goto err; |
| } |
| usb_free_urb(entry); |
| } |
| return ret; |
| |
| err: |
| usb_free_urb(entry); |
| kfree_skb(skb); |
| usb_kill_anchored_urbs(&priv->anchored); |
| return ret; |
| } |
| |
| 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 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) { |
| printk(KERN_ERR "%s: Reset timeout!\n", wiphy_name(dev->wiphy)); |
| return -ETIMEDOUT; |
| } |
| |
| /* reload registers from eeprom */ |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); |
| |
| i = 10; |
| do { |
| msleep(4); |
| if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) & |
| RTL818X_EEPROM_CMD_CONFIG)) |
| break; |
| } while (--i); |
| |
| if (!i) { |
| printk(KERN_ERR "%s: eeprom reset timeout!\n", |
| wiphy_name(dev->wiphy)); |
| return -ETIMEDOUT; |
| } |
| |
| return 0; |
| } |
| |
| static int rtl8187_init_hw(struct ieee80211_hw *dev) |
| { |
| struct rtl8187_priv *priv = dev->priv; |
| u8 reg; |
| int res; |
| |
| /* reset */ |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_CONFIG); |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | |
| RTL818X_CONFIG3_ANAPARAM_WRITE); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM, |
| RTL8187_RTL8225_ANAPARAM_ON); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, |
| RTL8187_RTL8225_ANAPARAM2_ON); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg & |
| ~RTL818X_CONFIG3_ANAPARAM_WRITE); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_NORMAL); |
| |
| rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); |
| |
| msleep(200); |
| rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10); |
| rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11); |
| rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00); |
| msleep(200); |
| |
| res = rtl8187_cmd_reset(dev); |
| if (res) |
| return res; |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, |
| reg | RTL818X_CONFIG3_ANAPARAM_WRITE); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM, |
| RTL8187_RTL8225_ANAPARAM_ON); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, |
| RTL8187_RTL8225_ANAPARAM2_ON); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, |
| reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| |
| /* setup card */ |
| rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); |
| rtl818x_iowrite8(priv, &priv->map->GPIO, 0); |
| |
| rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); |
| rtl818x_iowrite8(priv, &priv->map->GPIO, 1); |
| rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| |
| rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF); |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); |
| reg &= 0x3F; |
| reg |= 0x80; |
| rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg); |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| |
| rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); |
| rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); |
| rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 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->GPIO, 0); |
| reg = rtl818x_ioread8(priv, (u8 *)0xFE53); |
| rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7)); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); |
| rtl818x_iowrite8(priv, &priv->map->GPIO, 0x20); |
| rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80); |
| msleep(100); |
| |
| rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008); |
| rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF); |
| rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_CONFIG); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_NORMAL); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7); |
| msleep(100); |
| |
| priv->rf->init(dev); |
| |
| rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); |
| reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; |
| rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); |
| rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10); |
| rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80); |
| rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60); |
| rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); |
| |
| return 0; |
| } |
| |
| static const u8 rtl8187b_reg_table[][3] = { |
| {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0}, |
| {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0}, |
| {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0}, |
| {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0}, |
| |
| {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1}, |
| {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1}, |
| {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xE0, 0xFF, 1}, {0xE1, 0x0F, 1}, |
| {0xE2, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, {0xF2, 0x02, 1}, |
| {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, {0xF6, 0x06, 1}, |
| {0xF7, 0x07, 1}, {0xF8, 0x08, 1}, |
| |
| {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2}, |
| {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2}, |
| {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2}, |
| {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2}, |
| {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2}, |
| {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2}, |
| {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, {0x72, 0x56, 2}, |
| {0x73, 0x9A, 2}, |
| |
| {0x34, 0xF0, 0}, {0x35, 0x0F, 0}, {0x5B, 0x40, 0}, {0x84, 0x88, 0}, |
| {0x85, 0x24, 0}, {0x88, 0x54, 0}, {0x8B, 0xB8, 0}, {0x8C, 0x07, 0}, |
| {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, {0x95, 0x12, 0}, {0x96, 0x00, 0}, |
| {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, {0x9F, 0x10, 0}, {0xB4, 0x22, 0}, |
| {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, {0xEE, 0x00, 0}, {0x4C, 0x00, 2}, |
| |
| {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0}, |
| {0x8F, 0x00, 0} |
| }; |
| |
| static int rtl8187b_init_hw(struct ieee80211_hw *dev) |
| { |
| struct rtl8187_priv *priv = dev->priv; |
| int res, i; |
| u8 reg; |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_CONFIG); |
| |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| reg |= RTL818X_CONFIG3_ANAPARAM_WRITE | RTL818X_CONFIG3_GNT_SELECT; |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, |
| RTL8187B_RTL8225_ANAPARAM2_ON); |
| rtl818x_iowrite32(priv, &priv->map->ANAPARAM, |
| RTL8187B_RTL8225_ANAPARAM_ON); |
| rtl818x_iowrite8(priv, &priv->map->ANAPARAM3, |
| RTL8187B_RTL8225_ANAPARAM3_ON); |
| |
| rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10); |
| reg = rtl818x_ioread8(priv, (u8 *)0xFF62); |
| rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5)); |
| rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5)); |
| |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE; |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_NORMAL); |
| |
| res = rtl8187_cmd_reset(dev); |
| if (res) |
| return res; |
| |
| rtl818x_iowrite16(priv, (__le16 *)0xFF2D, 0x0FFF); |
| reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); |
| reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT; |
| rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); |
| reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); |
| reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT | |
| RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; |
| rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); |
| |
| rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1); |
| |
| rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100); |
| rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2); |
| rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1); |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_CONFIG); |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); |
| rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_NORMAL); |
| |
| rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); |
| for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) { |
| rtl818x_iowrite8_idx(priv, |
| (u8 *)(uintptr_t) |
| (rtl8187b_reg_table[i][0] | 0xFF00), |
| rtl8187b_reg_table[i][1], |
| rtl8187b_reg_table[i][2]); |
| } |
| |
| rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50); |
| rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0); |
| |
| rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1); |
| rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1); |
| rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1); |
| |
| rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001); |
| |
| rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2); |
| |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_CONFIG); |
| reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| reg |= RTL818X_CONFIG3_ANAPARAM_WRITE; |
| rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); |
| rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, |
| RTL818X_EEPROM_CMD_NORMAL); |
| |
| rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488); |
| rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF); |
| msleep(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); |
| |
| 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 |
| * queued, the retry count will be valid for the last one in the queue. |
| * The "error" should not matter for purposes of rate setting. */ |
| 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; |
| |
| mutex_lock(&priv->conf_mutex); |
| tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA); |
| 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 = tmp - retry + 1; |
| 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; |
| |
| ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) : |
| rtl8187b_init_hw(dev); |
| if (ret) |
| return ret; |
| |
| mutex_lock(&priv->conf_mutex); |
| |
| 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); |
| |
| rtl818x_iowrite32(priv, &priv->map->TX_CONF, |
| RTL818X_TX_CONF_HW_SEQNUM | |
| RTL818X_TX_CONF_DISREQQSIZE | |
| (7 << 8 /* short retry limit */) | |
| (7 << 0 /* long retry limit */) | |
| (7 << 21 /* MAX TX DMA */)); |
| rtl8187_init_urbs(dev); |
| rtl8187b_init_status_urb(dev); |
| mutex_unlock(&priv->conf_mutex); |
| return 0; |
| } |
| |
| 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); |
| INIT_DELAYED_WORK(&priv->work, rtl8187_work); |
| mutex_unlock(&priv->conf_mutex); |
| |
| return 0; |
| } |
| |
| 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); |
| |
| 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); |
| if (!priv->is_rtl8187b) |
| cancel_delayed_work_sync(&priv->work); |
| mutex_unlock(&priv->conf_mutex); |
| } |
| |
| static int rtl8187_add_interface(struct ieee80211_hw *dev, |
| struct ieee80211_if_init_conf *conf) |
| { |
| struct rtl8187_priv *priv = dev->priv; |
| int i; |
| int ret = -EOPNOTSUPP; |
| |
| mutex_lock(&priv->conf_mutex); |
| if (priv->mode != NL80211_IFTYPE_MONITOR) |
| goto exit; |
| |
| switch (conf->type) { |
| case NL80211_IFTYPE_STATION: |
| priv->mode = conf->type; |
| break; |
| default: |
| goto exit; |
| } |
| |
| ret = 0; |
| 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); |
| |
| exit: |
| mutex_unlock(&priv->conf_mutex); |
| return ret; |
| } |
| |
| static void rtl8187_remove_interface(struct ieee80211_hw *dev, |
| struct ieee80211_if_init_conf *conf) |
| { |
| struct rtl8187_priv *priv = dev->priv; |
| mutex_lock(&priv->conf_mutex); |
| priv->mode = NL80211_IFTYPE_MONITOR; |
| 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; |
| int i; |
| u8 reg; |
| |
| 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 (is_valid_ether_addr(info->bssid)) { |
| reg = RTL818X_MSR_INFRA; |
| if (priv->is_rtl8187b) |
| reg |= RTL818X_MSR_ENEDCA; |
| rtl818x_iowrite8(priv, &priv->map->MSR, reg); |
| } else { |
| reg = RTL818X_MSR_NO_LINK; |
| rtl818x_iowrite8(priv, &priv->map->MSR, reg); |
| } |
| |
| 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); |
| } |
| |
| 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 int rtl8187_conf_tx(struct ieee80211_hw *dev, 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, |
| .configure_filter = rtl8187_configure_filter, |
| .conf_tx = rtl8187_conf_tx |
| }; |
| |
| 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; |
| const char *chip_name; |
| u16 txpwr, reg; |
| int err, i; |
| |
| 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); |
| |
| 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 = NL80211_IFTYPE_MONITOR; |
| dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
| IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_RX_INCLUDES_FCS; |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| /* |
| * XXX: Once this driver supports anything that requires |
| * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ. |
| */ |
| dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
| |
| 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_dev; |
| } |
| mutex_init(&priv->conf_mutex); |
| skb_queue_head_init(&priv->b_tx_status.queue); |
| |
| printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s\n", |
| wiphy_name(dev->wiphy), dev->wiphy->perm_addr, |
| chip_name, priv->asic_rev, priv->rf->name); |
| |
| #ifdef CONFIG_RTL8187_LEDS |
| eeprom_93cx6_read(&eeprom, 0x3F, ®); |
| reg &= 0xFF; |
| rtl8187_leds_init(dev, reg); |
| #endif |
| |
| 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; |
| |
| #ifdef CONFIG_RTL8187_LEDS |
| rtl8187_leds_exit(dev); |
| #endif |
| ieee80211_unregister_hw(dev); |
| |
| priv = dev->priv; |
| usb_reset_device(priv->udev); |
| 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 = __devexit_p(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); |