diff options
Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8187/dev.c')
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8187/dev.c | 1684 |
1 files changed, 0 insertions, 1684 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c deleted file mode 100644 index b7f72f9c7..000000000 --- a/drivers/net/wireless/rtl818x/rtl8187/dev.c +++ /dev/null @@ -1,1684 +0,0 @@ -/* - * Linux device driver for RTL8187 - * - * Copyright 2007 Michael Wu <flamingice@sourmilk.net> - * Copyright 2007 Andrea Merello <andrea.merello@gmail.com> - * - * Based on the r8187 driver, which is: - * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, et al. - * - * The driver was extended to the RTL8187B in 2008 by: - * Herton Ronaldo Krzesinski <herton@mandriva.com.br> - * Hin-Tak Leung <htl10@users.sourceforge.net> - * Larry Finger <Larry.Finger@lwfinger.net> - * - * Magic delays and register offsets below are taken from the original - * r8187 driver sources. Thanks to Realtek for their support! - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/usb.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/etherdevice.h> -#include <linux/eeprom_93cx6.h> -#include <linux/module.h> -#include <net/mac80211.h> - -#include "rtl8187.h" -#include "rtl8225.h" -#ifdef CONFIG_RTL8187_LEDS -#include "leds.h" -#endif -#include "rfkill.h" - -MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); -MODULE_AUTHOR("Andrea Merello <andrea.merello@gmail.com>"); -MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>"); -MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>"); -MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>"); -MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver"); -MODULE_LICENSE("GPL"); - -static struct usb_device_id rtl8187_table[] = { - /* Asus */ - {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187}, - /* Belkin */ - {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B}, - /* Realtek */ - {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187}, - {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B}, - {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B}, - {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B}, - /* Surecom */ - {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187}, - /* Logitech */ - {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187}, - /* Netgear */ - {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187}, - {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187}, - {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B}, - /* HP */ - {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187}, - /* Sitecom */ - {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187}, - {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B}, - {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B}, - /* Sphairon Access Systems GmbH */ - {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187}, - /* Dick Smith Electronics */ - {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187}, - /* Abocom */ - {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187}, - /* Qcom */ - {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187}, - /* AirLive */ - {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187}, - /* Linksys */ - {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B}, - {} -}; - -MODULE_DEVICE_TABLE(usb, rtl8187_table); - -static const struct ieee80211_rate rtl818x_rates[] = { - { .bitrate = 10, .hw_value = 0, }, - { .bitrate = 20, .hw_value = 1, }, - { .bitrate = 55, .hw_value = 2, }, - { .bitrate = 110, .hw_value = 3, }, - { .bitrate = 60, .hw_value = 4, }, - { .bitrate = 90, .hw_value = 5, }, - { .bitrate = 120, .hw_value = 6, }, - { .bitrate = 180, .hw_value = 7, }, - { .bitrate = 240, .hw_value = 8, }, - { .bitrate = 360, .hw_value = 9, }, - { .bitrate = 480, .hw_value = 10, }, - { .bitrate = 540, .hw_value = 11, }, -}; - -static const struct ieee80211_channel rtl818x_channels[] = { - { .center_freq = 2412 }, - { .center_freq = 2417 }, - { .center_freq = 2422 }, - { .center_freq = 2427 }, - { .center_freq = 2432 }, - { .center_freq = 2437 }, - { .center_freq = 2442 }, - { .center_freq = 2447 }, - { .center_freq = 2452 }, - { .center_freq = 2457 }, - { .center_freq = 2462 }, - { .center_freq = 2467 }, - { .center_freq = 2472 }, - { .center_freq = 2484 }, -}; - -static void rtl8187_iowrite_async_cb(struct urb *urb) -{ - kfree(urb->context); -} - -static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr, - void *data, u16 len) -{ - struct usb_ctrlrequest *dr; - struct urb *urb; - struct rtl8187_async_write_data { - u8 data[4]; - struct usb_ctrlrequest dr; - } *buf; - int rc; - - buf = kmalloc(sizeof(*buf), GFP_ATOMIC); - if (!buf) - return; - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - kfree(buf); - return; - } - - dr = &buf->dr; - - dr->bRequestType = RTL8187_REQT_WRITE; - dr->bRequest = RTL8187_REQ_SET_REG; - dr->wValue = addr; - dr->wIndex = 0; - dr->wLength = cpu_to_le16(len); - - memcpy(buf, data, len); - - usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0), - (unsigned char *)dr, buf, len, - rtl8187_iowrite_async_cb, buf); - usb_anchor_urb(urb, &priv->anchored); - rc = usb_submit_urb(urb, GFP_ATOMIC); - if (rc < 0) { - kfree(buf); - usb_unanchor_urb(urb); - } - usb_free_urb(urb); -} - -static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv, - __le32 *addr, u32 val) -{ - __le32 buf = cpu_to_le32(val); - - rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr), - &buf, sizeof(buf)); -} - -void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) -{ - struct rtl8187_priv *priv = dev->priv; - - data <<= 8; - data |= addr | 0x80; - - rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF); - rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF); - rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF); - rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF); -} - -static void rtl8187_tx_cb(struct urb *urb) -{ - struct sk_buff *skb = (struct sk_buff *)urb->context; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->rate_driver_data[0]; - struct rtl8187_priv *priv = hw->priv; - - skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : - sizeof(struct rtl8187_tx_hdr)); - ieee80211_tx_info_clear_status(info); - - if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (priv->is_rtl8187b) { - skb_queue_tail(&priv->b_tx_status.queue, skb); - - /* queue is "full", discard last items */ - while (skb_queue_len(&priv->b_tx_status.queue) > 5) { - struct sk_buff *old_skb; - - dev_dbg(&priv->udev->dev, - "transmit status queue full\n"); - - old_skb = skb_dequeue(&priv->b_tx_status.queue); - ieee80211_tx_status_irqsafe(hw, old_skb); - } - return; - } else { - info->flags |= IEEE80211_TX_STAT_ACK; - } - } - if (priv->is_rtl8187b) - ieee80211_tx_status_irqsafe(hw, skb); - else { - /* Retry information for the RTI8187 is only available by - * reading a register in the device. We are in interrupt mode - * here, thus queue the skb and finish on a work queue. */ - skb_queue_tail(&priv->b_tx_status.queue, skb); - ieee80211_queue_delayed_work(hw, &priv->work, 0); - } -} - -static void rtl8187_tx(struct ieee80211_hw *dev, - struct ieee80211_tx_control *control, - struct sk_buff *skb) -{ - struct rtl8187_priv *priv = dev->priv; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *tx_hdr = (struct ieee80211_hdr *)(skb->data); - unsigned int ep; - void *buf; - struct urb *urb; - __le16 rts_dur = 0; - u32 flags; - int rc; - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - kfree_skb(skb); - return; - } - - flags = skb->len; - flags |= RTL818X_TX_DESC_FLAG_NO_ENC; - - flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; - if (ieee80211_has_morefrags(tx_hdr->frame_control)) - flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; - - /* HW will perform RTS-CTS when only RTS flags is set. - * HW will perform CTS-to-self when both RTS and CTS flags are set. - * RTS rate and RTS duration will be used also for CTS-to-self. - */ - if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { - flags |= RTL818X_TX_DESC_FLAG_RTS; - flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; - rts_dur = ieee80211_rts_duration(dev, priv->vif, - skb->len, info); - } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { - flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS; - flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; - rts_dur = ieee80211_ctstoself_duration(dev, priv->vif, - skb->len, info); - } - - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) - priv->seqno += 0x10; - tx_hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - tx_hdr->seq_ctrl |= cpu_to_le16(priv->seqno); - } - - if (!priv->is_rtl8187b) { - struct rtl8187_tx_hdr *hdr = - (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr)); - hdr->flags = cpu_to_le32(flags); - hdr->len = 0; - hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); - buf = hdr; - - ep = 2; - } else { - /* fc needs to be calculated before skb_push() */ - unsigned int epmap[4] = { 6, 7, 5, 4 }; - u16 fc = le16_to_cpu(tx_hdr->frame_control); - - struct rtl8187b_tx_hdr *hdr = - (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr)); - struct ieee80211_rate *txrate = - ieee80211_get_tx_rate(dev, info); - memset(hdr, 0, sizeof(*hdr)); - hdr->flags = cpu_to_le32(flags); - hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); - hdr->tx_duration = - ieee80211_generic_frame_duration(dev, priv->vif, - info->band, - skb->len, txrate); - buf = hdr; - - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) - ep = 12; - else - ep = epmap[skb_get_queue_mapping(skb)]; - } - - info->rate_driver_data[0] = dev; - info->rate_driver_data[1] = urb; - - usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep), - buf, skb->len, rtl8187_tx_cb, skb); - urb->transfer_flags |= URB_ZERO_PACKET; - usb_anchor_urb(urb, &priv->anchored); - rc = usb_submit_urb(urb, GFP_ATOMIC); - if (rc < 0) { - usb_unanchor_urb(urb); - kfree_skb(skb); - } - usb_free_urb(urb); -} - -static void rtl8187_rx_cb(struct urb *urb) -{ - struct sk_buff *skb = (struct sk_buff *)urb->context; - struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb; - struct ieee80211_hw *dev = info->dev; - struct rtl8187_priv *priv = dev->priv; - struct ieee80211_rx_status rx_status = { 0 }; - int rate, signal; - u32 flags; - unsigned long f; - - spin_lock_irqsave(&priv->rx_queue.lock, f); - __skb_unlink(skb, &priv->rx_queue); - spin_unlock_irqrestore(&priv->rx_queue.lock, f); - skb_put(skb, urb->actual_length); - - if (unlikely(urb->status)) { - dev_kfree_skb_irq(skb); - return; - } - - if (!priv->is_rtl8187b) { - struct rtl8187_rx_hdr *hdr = - (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr)); - flags = le32_to_cpu(hdr->flags); - /* As with the RTL8187B below, the AGC is used to calculate - * signal strength. In this case, the scaling - * constants are derived from the output of p54usb. - */ - signal = -4 - ((27 * hdr->agc) >> 6); - rx_status.antenna = (hdr->signal >> 7) & 1; - rx_status.mactime = le64_to_cpu(hdr->mac_time); - } else { - struct rtl8187b_rx_hdr *hdr = - (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr)); - /* The Realtek datasheet for the RTL8187B shows that the RX - * header contains the following quantities: signal quality, - * RSSI, AGC, the received power in dB, and the measured SNR. - * In testing, none of these quantities show qualitative - * agreement with AP signal strength, except for the AGC, - * which is inversely proportional to the strength of the - * signal. In the following, the signal strength - * is derived from the AGC. The arbitrary scaling constants - * are chosen to make the results close to the values obtained - * for a BCM4312 using b43 as the driver. The noise is ignored - * for now. - */ - flags = le32_to_cpu(hdr->flags); - signal = 14 - hdr->agc / 2; - rx_status.antenna = (hdr->rssi >> 7) & 1; - rx_status.mactime = le64_to_cpu(hdr->mac_time); - } - - rx_status.signal = signal; - priv->signal = signal; - rate = (flags >> 20) & 0xF; - skb_trim(skb, flags & 0x0FFF); - rx_status.rate_idx = rate; - rx_status.freq = dev->conf.chandef.chan->center_freq; - rx_status.band = dev->conf.chandef.chan->band; - rx_status.flag |= RX_FLAG_MACTIME_START; - if (flags & RTL818X_RX_DESC_FLAG_SPLCP) - rx_status.flag |= RX_FLAG_SHORTPRE; - if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) - rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; - memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); - ieee80211_rx_irqsafe(dev, skb); - - skb = dev_alloc_skb(RTL8187_MAX_RX); - if (unlikely(!skb)) { - /* TODO check rx queue length and refill *somewhere* */ - return; - } - - info = (struct rtl8187_rx_info *)skb->cb; - info->urb = urb; - info->dev = dev; - urb->transfer_buffer = skb_tail_pointer(skb); - urb->context = skb; - skb_queue_tail(&priv->rx_queue, skb); - - usb_anchor_urb(urb, &priv->anchored); - if (usb_submit_urb(urb, GFP_ATOMIC)) { - usb_unanchor_urb(urb); - skb_unlink(skb, &priv->rx_queue); - dev_kfree_skb_irq(skb); - } -} - -static int rtl8187_init_urbs(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - struct urb *entry = NULL; - struct sk_buff *skb; - struct rtl8187_rx_info *info; - int ret = 0; - - while (skb_queue_len(&priv->rx_queue) < 32) { - skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL); - if (!skb) { - ret = -ENOMEM; - goto err; - } - entry = usb_alloc_urb(0, GFP_KERNEL); - if (!entry) { - ret = -ENOMEM; - goto err; - } - usb_fill_bulk_urb(entry, priv->udev, - usb_rcvbulkpipe(priv->udev, - priv->is_rtl8187b ? 3 : 1), - skb_tail_pointer(skb), - RTL8187_MAX_RX, rtl8187_rx_cb, skb); - info = (struct rtl8187_rx_info *)skb->cb; - info->urb = entry; - info->dev = dev; - skb_queue_tail(&priv->rx_queue, skb); - usb_anchor_urb(entry, &priv->anchored); - ret = usb_submit_urb(entry, GFP_KERNEL); - usb_put_urb(entry); - if (ret) { - skb_unlink(skb, &priv->rx_queue); - usb_unanchor_urb(entry); - goto err; - } - } - return ret; - -err: - kfree_skb(skb); - usb_kill_anchored_urbs(&priv->anchored); - return ret; -} - -static void rtl8187b_status_cb(struct urb *urb) -{ - struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context; - struct rtl8187_priv *priv = hw->priv; - u64 val; - unsigned int cmd_type; - - if (unlikely(urb->status)) - return; - - /* - * Read from status buffer: - * - * bits [30:31] = cmd type: - * - 0 indicates tx beacon interrupt - * - 1 indicates tx close descriptor - * - * In the case of tx beacon interrupt: - * [0:9] = Last Beacon CW - * [10:29] = reserved - * [30:31] = 00b - * [32:63] = Last Beacon TSF - * - * If it's tx close descriptor: - * [0:7] = Packet Retry Count - * [8:14] = RTS Retry Count - * [15] = TOK - * [16:27] = Sequence No - * [28] = LS - * [29] = FS - * [30:31] = 01b - * [32:47] = unused (reserved?) - * [48:63] = MAC Used Time - */ - val = le64_to_cpu(priv->b_tx_status.buf); - - cmd_type = (val >> 30) & 0x3; - if (cmd_type == 1) { - unsigned int pkt_rc, seq_no; - bool tok; - struct sk_buff *skb; - struct ieee80211_hdr *ieee80211hdr; - unsigned long flags; - - pkt_rc = val & 0xFF; - tok = val & (1 << 15); - seq_no = (val >> 16) & 0xFFF; - - spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags); - skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) { - ieee80211hdr = (struct ieee80211_hdr *)skb->data; - - /* - * While testing, it was discovered that the seq_no - * doesn't actually contains the sequence number. - * Instead of returning just the 12 bits of sequence - * number, hardware is returning entire sequence control - * (fragment number plus sequence number) in a 12 bit - * only field overflowing after some time. As a - * workaround, just consider the lower bits, and expect - * it's unlikely we wrongly ack some sent data - */ - if ((le16_to_cpu(ieee80211hdr->seq_ctrl) - & 0xFFF) == seq_no) - break; - } - if (skb != (struct sk_buff *) &priv->b_tx_status.queue) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - __skb_unlink(skb, &priv->b_tx_status.queue); - if (tok) - info->flags |= IEEE80211_TX_STAT_ACK; - info->status.rates[0].count = pkt_rc + 1; - - ieee80211_tx_status_irqsafe(hw, skb); - } - spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags); - } - - usb_anchor_urb(urb, &priv->anchored); - if (usb_submit_urb(urb, GFP_ATOMIC)) - usb_unanchor_urb(urb); -} - -static int rtl8187b_init_status_urb(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - struct urb *entry; - int ret = 0; - - entry = usb_alloc_urb(0, GFP_KERNEL); - if (!entry) - return -ENOMEM; - - usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9), - &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf), - rtl8187b_status_cb, dev); - - usb_anchor_urb(entry, &priv->anchored); - ret = usb_submit_urb(entry, GFP_KERNEL); - if (ret) - usb_unanchor_urb(entry); - usb_free_urb(entry); - - return ret; -} - -static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon) -{ - u32 anaparam, anaparam2; - u8 anaparam3, reg; - - if (!priv->is_rtl8187b) { - if (rfon) { - anaparam = RTL8187_RTL8225_ANAPARAM_ON; - anaparam2 = RTL8187_RTL8225_ANAPARAM2_ON; - } else { - anaparam = RTL8187_RTL8225_ANAPARAM_OFF; - anaparam2 = RTL8187_RTL8225_ANAPARAM2_OFF; - } - } else { - if (rfon) { - anaparam = RTL8187B_RTL8225_ANAPARAM_ON; - anaparam2 = RTL8187B_RTL8225_ANAPARAM2_ON; - anaparam3 = RTL8187B_RTL8225_ANAPARAM3_ON; - } else { - anaparam = RTL8187B_RTL8225_ANAPARAM_OFF; - anaparam2 = RTL8187B_RTL8225_ANAPARAM2_OFF; - anaparam3 = RTL8187B_RTL8225_ANAPARAM3_OFF; - } - } - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_CONFIG); - reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); - reg |= RTL818X_CONFIG3_ANAPARAM_WRITE; - rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); - rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam); - rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2); - if (priv->is_rtl8187b) - rtl818x_iowrite8(priv, &priv->map->ANAPARAM3A, anaparam3); - reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE; - rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_NORMAL); -} - -static int rtl8187_cmd_reset(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - u8 reg; - int i; - - reg = rtl818x_ioread8(priv, &priv->map->CMD); - reg &= (1 << 1); - reg |= RTL818X_CMD_RESET; - rtl818x_iowrite8(priv, &priv->map->CMD, reg); - - i = 10; - do { - msleep(2); - if (!(rtl818x_ioread8(priv, &priv->map->CMD) & - RTL818X_CMD_RESET)) - break; - } while (--i); - - if (!i) { - wiphy_err(dev->wiphy, "Reset timeout!\n"); - return -ETIMEDOUT; - } - - /* reload registers from eeprom */ - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); - - i = 10; - do { - msleep(4); - if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) & - RTL818X_EEPROM_CMD_CONFIG)) - break; - } while (--i); - - if (!i) { - wiphy_err(dev->wiphy, "eeprom reset timeout!\n"); - return -ETIMEDOUT; - } - - return 0; -} - -static int rtl8187_init_hw(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - u8 reg; - int res; - - /* reset */ - rtl8187_set_anaparam(priv, true); - - rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); - - msleep(200); - rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10); - rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11); - rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00); - msleep(200); - - res = rtl8187_cmd_reset(dev); - if (res) - return res; - - rtl8187_set_anaparam(priv, true); - - /* setup card */ - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); - rtl818x_iowrite8(priv, &priv->map->GPIO0, 0); - - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); - rtl818x_iowrite8(priv, &priv->map->GPIO0, 1); - rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); - - rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF); - reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); - reg &= 0x3F; - reg |= 0x80; - rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg); - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); - - rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); - rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); - rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0); - - // TODO: set RESP_RATE and BRSR properly - rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0); - rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); - - /* host_usb_init */ - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); - rtl818x_iowrite8(priv, &priv->map->GPIO0, 0); - reg = rtl818x_ioread8(priv, (u8 *)0xFE53); - rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7)); - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); - rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20); - rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); - rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80); - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80); - rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80); - msleep(100); - - rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008); - rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF); - rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_CONFIG); - rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_NORMAL); - rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7); - msleep(100); - - priv->rf->init(dev); - - rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); - reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; - rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); - rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10); - rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80); - rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60); - rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); - - return 0; -} - -static const u8 rtl8187b_reg_table[][3] = { - {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0}, - {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0}, - {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0}, - {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0}, - - {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1}, - {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1}, - {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, - {0xF2, 0x02, 1}, {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, - {0xF6, 0x06, 1}, {0xF7, 0x07, 1}, {0xF8, 0x08, 1}, - - {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2}, - {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2}, - {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2}, - {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2}, - {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2}, - {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2}, - {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, - - {0x5B, 0x40, 0}, {0x84, 0x88, 0}, {0x85, 0x24, 0}, {0x88, 0x54, 0}, - {0x8B, 0xB8, 0}, {0x8C, 0x07, 0}, {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, - {0x95, 0x12, 0}, {0x96, 0x00, 0}, {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, - {0x9F, 0x10, 0}, {0xB4, 0x22, 0}, {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, - {0xEE, 0x00, 0}, {0x4C, 0x00, 2}, - - {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0}, - {0x8F, 0x00, 0} -}; - -static int rtl8187b_init_hw(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - int res, i; - u8 reg; - - rtl8187_set_anaparam(priv, true); - - /* Reset PLL sequence on 8187B. Realtek note: reduces power - * consumption about 30 mA */ - rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10); - reg = rtl818x_ioread8(priv, (u8 *)0xFF62); - rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5)); - rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5)); - - res = rtl8187_cmd_reset(dev); - if (res) - return res; - - rtl8187_set_anaparam(priv, true); - - /* BRSR (Basic Rate Set Register) on 8187B looks to be the same as - * RESP_RATE on 8187L in Realtek sources: each bit should be each - * one of the 12 rates, all are enabled */ - rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF); - - reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); - reg |= RTL818X_CW_CONF_PERPACKET_RETRY; - rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); - - /* Auto Rate Fallback Register (ARFR): 1M-54M setting */ - rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1); - rtl818x_iowrite8_idx(priv, (u8 *)0xFFE2, 0x00, 1); - - rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1); - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_CONFIG); - reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); - rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, - RTL818X_EEPROM_CMD_NORMAL); - - rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); - for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) { - rtl818x_iowrite8_idx(priv, - (u8 *)(uintptr_t) - (rtl8187b_reg_table[i][0] | 0xFF00), - rtl8187b_reg_table[i][1], - rtl8187b_reg_table[i][2]); - } - - rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50); - rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0); - - rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1); - rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1); - rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1); - - rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001); - - /* RFSW_CTRL register */ - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2); - - rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480); - rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488); - rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF); - msleep(100); - - priv->rf->init(dev); - - reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE; - rtl818x_iowrite8(priv, &priv->map->CMD, reg); - rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); - - rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4); - rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00); - rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00); - rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01); - rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F); - rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00); - rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01); - - reg = rtl818x_ioread8(priv, (u8 *)0xFFDB); - rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2)); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3); - rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3); - rtl818x_iowrite8(priv, (u8 *)0xFF61, 0); - rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1); - rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1); - rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10); - rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2); - - rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B); - - rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1); - - priv->slot_time = 0x9; - priv->aifsn[0] = 2; /* AIFSN[AC_VO] */ - priv->aifsn[1] = 2; /* AIFSN[AC_VI] */ - priv->aifsn[2] = 7; /* AIFSN[AC_BK] */ - priv->aifsn[3] = 3; /* AIFSN[AC_BE] */ - rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0); - - /* ENEDCA flag must always be set, transmit issues? */ - rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA); - - return 0; -} - -static void rtl8187_work(struct work_struct *work) -{ - /* The RTL8187 returns the retry count through register 0xFFFA. In - * addition, it appears to be a cumulative retry count, not the - * value for the current TX packet. When multiple TX entries are - * waiting in the queue, the retry count will be the total for all. - * The "error" may matter for purposes of rate setting, but there is - * no other choice with this hardware. - */ - struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv, - work.work); - struct ieee80211_tx_info *info; - struct ieee80211_hw *dev = priv->dev; - static u16 retry; - u16 tmp; - u16 avg_retry; - int length; - - mutex_lock(&priv->conf_mutex); - tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA); - length = skb_queue_len(&priv->b_tx_status.queue); - if (unlikely(!length)) - length = 1; - if (unlikely(tmp < retry)) - tmp = retry; - avg_retry = (tmp - retry) / length; - while (skb_queue_len(&priv->b_tx_status.queue) > 0) { - struct sk_buff *old_skb; - - old_skb = skb_dequeue(&priv->b_tx_status.queue); - info = IEEE80211_SKB_CB(old_skb); - info->status.rates[0].count = avg_retry + 1; - if (info->status.rates[0].count > RETRY_COUNT) - info->flags &= ~IEEE80211_TX_STAT_ACK; - ieee80211_tx_status_irqsafe(dev, old_skb); - } - retry = tmp; - mutex_unlock(&priv->conf_mutex); -} - -static int rtl8187_start(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - u32 reg; - int ret; - - mutex_lock(&priv->conf_mutex); - - ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) : - rtl8187b_init_hw(dev); - if (ret) - goto rtl8187_start_exit; - - init_usb_anchor(&priv->anchored); - priv->dev = dev; - - if (priv->is_rtl8187b) { - reg = RTL818X_RX_CONF_MGMT | - RTL818X_RX_CONF_DATA | - RTL818X_RX_CONF_BROADCAST | - RTL818X_RX_CONF_NICMAC | - RTL818X_RX_CONF_BSSID | - (7 << 13 /* RX FIFO threshold NONE */) | - (7 << 10 /* MAX RX DMA */) | - RTL818X_RX_CONF_RX_AUTORESETPHY | - RTL818X_RX_CONF_ONLYERLPKT | - RTL818X_RX_CONF_MULTICAST; - priv->rx_conf = reg; - rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); - - reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); - reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN; - reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL; - reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; - rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); - - rtl818x_iowrite32(priv, &priv->map->TX_CONF, - RTL818X_TX_CONF_HW_SEQNUM | - RTL818X_TX_CONF_DISREQQSIZE | - (RETRY_COUNT << 8 /* short retry limit */) | - (RETRY_COUNT << 0 /* long retry limit */) | - (7 << 21 /* MAX TX DMA */)); - ret = rtl8187_init_urbs(dev); - if (ret) - goto rtl8187_start_exit; - ret = rtl8187b_init_status_urb(dev); - if (ret) - usb_kill_anchored_urbs(&priv->anchored); - goto rtl8187_start_exit; - } - - rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); - - rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); - rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); - - ret = rtl8187_init_urbs(dev); - if (ret) - goto rtl8187_start_exit; - - reg = RTL818X_RX_CONF_ONLYERLPKT | - RTL818X_RX_CONF_RX_AUTORESETPHY | - RTL818X_RX_CONF_BSSID | - RTL818X_RX_CONF_MGMT | - RTL818X_RX_CONF_DATA | - (7 << 13 /* RX FIFO threshold NONE */) | - (7 << 10 /* MAX RX DMA */) | - RTL818X_RX_CONF_BROADCAST | - RTL818X_RX_CONF_NICMAC; - - priv->rx_conf = reg; - rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); - - reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); - reg &= ~RTL818X_CW_CONF_PERPACKET_CW; - reg |= RTL818X_CW_CONF_PERPACKET_RETRY; - rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); - - reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); - reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN; - reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL; - reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; - rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); - - reg = RTL818X_TX_CONF_CW_MIN | - (7 << 21 /* MAX TX DMA */) | - RTL818X_TX_CONF_NO_ICV; - rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); - - reg = rtl818x_ioread8(priv, &priv->map->CMD); - reg |= RTL818X_CMD_TX_ENABLE; - reg |= RTL818X_CMD_RX_ENABLE; - rtl818x_iowrite8(priv, &priv->map->CMD, reg); - INIT_DELAYED_WORK(&priv->work, rtl8187_work); - -rtl8187_start_exit: - mutex_unlock(&priv->conf_mutex); - return ret; -} - -static void rtl8187_stop(struct ieee80211_hw *dev) -{ - struct rtl8187_priv *priv = dev->priv; - struct sk_buff *skb; - u32 reg; - - mutex_lock(&priv->conf_mutex); - rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); - - reg = rtl818x_ioread8(priv, &priv->map->CMD); - reg &= ~RTL818X_CMD_TX_ENABLE; - reg &= ~RTL818X_CMD_RX_ENABLE; - rtl818x_iowrite8(priv, &priv->map->CMD, reg); - - priv->rf->stop(dev); - rtl8187_set_anaparam(priv, false); - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); - reg = rtl818x_ioread8(priv, &priv->map->CONFIG4); - rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); - - while ((skb = skb_dequeue(&priv->b_tx_status.queue))) - dev_kfree_skb_any(skb); - - usb_kill_anchored_urbs(&priv->anchored); - mutex_unlock(&priv->conf_mutex); - - if (!priv->is_rtl8187b) - cancel_delayed_work_sync(&priv->work); -} - -static u64 rtl8187_get_tsf(struct ieee80211_hw *dev, struct ieee80211_vif *vif) -{ - struct rtl8187_priv *priv = dev->priv; - - return rtl818x_ioread32(priv, &priv->map->TSFT[0]) | - (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32; -} - - -static void rtl8187_beacon_work(struct work_struct *work) -{ - struct rtl8187_vif *vif_priv = - container_of(work, struct rtl8187_vif, beacon_work.work); - struct ieee80211_vif *vif = - container_of((void *)vif_priv, struct ieee80211_vif, drv_priv); - struct ieee80211_hw *dev = vif_priv->dev; - struct ieee80211_mgmt *mgmt; - struct sk_buff *skb; - - /* don't overflow the tx ring */ - if (ieee80211_queue_stopped(dev, 0)) - goto resched; - - /* grab a fresh beacon */ - skb = ieee80211_beacon_get(dev, vif); - if (!skb) - goto resched; - - /* - * update beacon timestamp w/ TSF value - * TODO: make hardware update beacon timestamp - */ - mgmt = (struct ieee80211_mgmt *)skb->data; - mgmt->u.beacon.timestamp = cpu_to_le64(rtl8187_get_tsf(dev, vif)); - - /* TODO: use actual beacon queue */ - skb_set_queue_mapping(skb, 0); - - rtl8187_tx(dev, NULL, skb); - -resched: - /* - * schedule next beacon - * TODO: use hardware support for beacon timing - */ - schedule_delayed_work(&vif_priv->beacon_work, - usecs_to_jiffies(1024 * vif->bss_conf.beacon_int)); -} - - -static int rtl8187_add_interface(struct ieee80211_hw *dev, - struct ieee80211_vif *vif) -{ - struct rtl8187_priv *priv = dev->priv; - struct rtl8187_vif *vif_priv; - int i; - int ret = -EOPNOTSUPP; - - mutex_lock(&priv->conf_mutex); - if (priv->vif) - goto exit; - - switch (vif->type) { - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_ADHOC: - break; - default: - goto exit; - } - - ret = 0; - priv->vif = vif; - - /* Initialize driver private area */ - vif_priv = (struct rtl8187_vif *)&vif->drv_priv; - vif_priv->dev = dev; - INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8187_beacon_work); - vif_priv->enable_beacon = false; - - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); - for (i = 0; i < ETH_ALEN; i++) - rtl818x_iowrite8(priv, &priv->map->MAC[i], - ((u8 *)vif->addr)[i]); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); - -exit: - mutex_unlock(&priv->conf_mutex); - return ret; -} - -static void rtl8187_remove_interface(struct ieee80211_hw *dev, - struct ieee80211_vif *vif) -{ - struct rtl8187_priv *priv = dev->priv; - mutex_lock(&priv->conf_mutex); - priv->vif = NULL; - mutex_unlock(&priv->conf_mutex); -} - -static int rtl8187_config(struct ieee80211_hw *dev, u32 changed) -{ - struct rtl8187_priv *priv = dev->priv; - struct ieee80211_conf *conf = &dev->conf; - u32 reg; - - mutex_lock(&priv->conf_mutex); - reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); - /* Enable TX loopback on MAC level to avoid TX during channel - * changes, as this has be seen to causes problems and the - * card will stop work until next reset - */ - rtl818x_iowrite32(priv, &priv->map->TX_CONF, - reg | RTL818X_TX_CONF_LOOPBACK_MAC); - priv->rf->set_chan(dev, conf); - msleep(10); - rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); - - rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2); - rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100); - rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100); - rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100); - mutex_unlock(&priv->conf_mutex); - return 0; -} - -/* - * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for - * example. Thus we have to use raw values for AC_*_PARAM register addresses. - */ -static __le32 *rtl8187b_ac_addr[4] = { - (__le32 *) 0xFFF0, /* AC_VO */ - (__le32 *) 0xFFF4, /* AC_VI */ - (__le32 *) 0xFFFC, /* AC_BK */ - (__le32 *) 0xFFF8, /* AC_BE */ -}; - -#define SIFS_TIME 0xa - -static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot, - bool use_short_preamble) -{ - if (priv->is_rtl8187b) { - u8 difs, eifs; - u16 ack_timeout; - int queue; - - if (use_short_slot) { - priv->slot_time = 0x9; - difs = 0x1c; - eifs = 0x53; - } else { - priv->slot_time = 0x14; - difs = 0x32; - eifs = 0x5b; - } - rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); - rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time); - rtl818x_iowrite8(priv, &priv->map->DIFS, difs); - - /* - * BRSR+1 on 8187B is in fact EIFS register - * Value in units of 4 us - */ - rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs); - - /* - * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout - * register. In units of 4 us like eifs register - * ack_timeout = ack duration + plcp + difs + preamble - */ - ack_timeout = 112 + 48 + difs; - if (use_short_preamble) - ack_timeout += 72; - else - ack_timeout += 144; - rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, - DIV_ROUND_UP(ack_timeout, 4)); - - for (queue = 0; queue < 4; queue++) - rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue], - priv->aifsn[queue] * priv->slot_time + - SIFS_TIME); - } else { - rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); - if (use_short_slot) { - rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9); - rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14); - rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14); - } else { - rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14); - rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24); - rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24); - } - } -} - -static void rtl8187_bss_info_changed(struct ieee80211_hw *dev, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *info, - u32 changed) -{ - struct rtl8187_priv *priv = dev->priv; - struct rtl8187_vif *vif_priv; - int i; - u8 reg; - - vif_priv = (struct rtl8187_vif *)&vif->drv_priv; - - if (changed & BSS_CHANGED_BSSID) { - mutex_lock(&priv->conf_mutex); - for (i = 0; i < ETH_ALEN; i++) - rtl818x_iowrite8(priv, &priv->map->BSSID[i], - info->bssid[i]); - - if (priv->is_rtl8187b) - reg = RTL818X_MSR_ENEDCA; - else - reg = 0; - - if (is_valid_ether_addr(info->bssid)) { - if (vif->type == NL80211_IFTYPE_ADHOC) - reg |= RTL818X_MSR_ADHOC; - else - reg |= RTL818X_MSR_INFRA; - } - else - reg |= RTL818X_MSR_NO_LINK; - - rtl818x_iowrite8(priv, &priv->map->MSR, reg); - - mutex_unlock(&priv->conf_mutex); - } - - if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE)) - rtl8187_conf_erp(priv, info->use_short_slot, - info->use_short_preamble); - - if (changed & BSS_CHANGED_BEACON_ENABLED) - vif_priv->enable_beacon = info->enable_beacon; - - if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) { - cancel_delayed_work_sync(&vif_priv->beacon_work); - if (vif_priv->enable_beacon) - schedule_work(&vif_priv->beacon_work.work); - } - -} - -static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev, - struct netdev_hw_addr_list *mc_list) -{ - return netdev_hw_addr_list_count(mc_list); -} - -static void rtl8187_configure_filter(struct ieee80211_hw *dev, - unsigned int changed_flags, - unsigned int *total_flags, - u64 multicast) -{ - struct rtl8187_priv *priv = dev->priv; - - if (changed_flags & FIF_FCSFAIL) - priv->rx_conf ^= RTL818X_RX_CONF_FCS; - if (changed_flags & FIF_CONTROL) - priv->rx_conf ^= RTL818X_RX_CONF_CTRL; - if (changed_flags & FIF_OTHER_BSS) - priv->rx_conf ^= RTL818X_RX_CONF_MONITOR; - if (*total_flags & FIF_ALLMULTI || multicast > 0) - priv->rx_conf |= RTL818X_RX_CONF_MULTICAST; - else - priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST; - - *total_flags = 0; - - if (priv->rx_conf & RTL818X_RX_CONF_FCS) - *total_flags |= FIF_FCSFAIL; - if (priv->rx_conf & RTL818X_RX_CONF_CTRL) - *total_flags |= FIF_CONTROL; - if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) - *total_flags |= FIF_OTHER_BSS; - if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST) - *total_flags |= FIF_ALLMULTI; - - rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf); -} - -static int rtl8187_conf_tx(struct ieee80211_hw *dev, - struct ieee80211_vif *vif, u16 queue, - const struct ieee80211_tx_queue_params *params) -{ - struct rtl8187_priv *priv = dev->priv; - u8 cw_min, cw_max; - - if (queue > 3) - return -EINVAL; - - cw_min = fls(params->cw_min); - cw_max = fls(params->cw_max); - - if (priv->is_rtl8187b) { - priv->aifsn[queue] = params->aifs; - - /* - * This is the structure of AC_*_PARAM registers in 8187B: - * - TXOP limit field, bit offset = 16 - * - ECWmax, bit offset = 12 - * - ECWmin, bit offset = 8 - * - AIFS, bit offset = 0 - */ - rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue], - (params->txop << 16) | (cw_max << 12) | - (cw_min << 8) | (params->aifs * - priv->slot_time + SIFS_TIME)); - } else { - if (queue != 0) - return -EINVAL; - - rtl818x_iowrite8(priv, &priv->map->CW_VAL, - cw_min | (cw_max << 4)); - } - return 0; -} - - -static const struct ieee80211_ops rtl8187_ops = { - .tx = rtl8187_tx, - .start = rtl8187_start, - .stop = rtl8187_stop, - .add_interface = rtl8187_add_interface, - .remove_interface = rtl8187_remove_interface, - .config = rtl8187_config, - .bss_info_changed = rtl8187_bss_info_changed, - .prepare_multicast = rtl8187_prepare_multicast, - .configure_filter = rtl8187_configure_filter, - .conf_tx = rtl8187_conf_tx, - .rfkill_poll = rtl8187_rfkill_poll, - .get_tsf = rtl8187_get_tsf, -}; - -static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom) -{ - struct ieee80211_hw *dev = eeprom->data; - struct rtl8187_priv *priv = dev->priv; - u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); - - eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; - eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; - eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; - eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; -} - -static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom) -{ - struct ieee80211_hw *dev = eeprom->data; - struct rtl8187_priv *priv = dev->priv; - u8 reg = RTL818X_EEPROM_CMD_PROGRAM; - - if (eeprom->reg_data_in) - reg |= RTL818X_EEPROM_CMD_WRITE; - if (eeprom->reg_data_out) - reg |= RTL818X_EEPROM_CMD_READ; - if (eeprom->reg_data_clock) - reg |= RTL818X_EEPROM_CMD_CK; - if (eeprom->reg_chip_select) - reg |= RTL818X_EEPROM_CMD_CS; - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg); - udelay(10); -} - -static int rtl8187_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev(intf); - struct ieee80211_hw *dev; - struct rtl8187_priv *priv; - struct eeprom_93cx6 eeprom; - struct ieee80211_channel *channel; - const char *chip_name; - u16 txpwr, reg; - u16 product_id = le16_to_cpu(udev->descriptor.idProduct); - int err, i; - u8 mac_addr[ETH_ALEN]; - - dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops); - if (!dev) { - printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n"); - return -ENOMEM; - } - - priv = dev->priv; - priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B); - - /* allocate "DMA aware" buffer for register accesses */ - priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL); - if (!priv->io_dmabuf) { - err = -ENOMEM; - goto err_free_dev; - } - mutex_init(&priv->io_mutex); - - SET_IEEE80211_DEV(dev, &intf->dev); - usb_set_intfdata(intf, dev); - priv->udev = udev; - - usb_get_dev(udev); - - skb_queue_head_init(&priv->rx_queue); - - BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels)); - BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates)); - - memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels)); - memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates)); - priv->map = (struct rtl818x_csr *)0xFF00; - - priv->band.band = IEEE80211_BAND_2GHZ; - priv->band.channels = priv->channels; - priv->band.n_channels = ARRAY_SIZE(rtl818x_channels); - priv->band.bitrates = priv->rates; - priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates); - dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; - - - ieee80211_hw_set(dev, RX_INCLUDES_FCS); - ieee80211_hw_set(dev, HOST_BROADCAST_PS_BUFFERING); - ieee80211_hw_set(dev, SIGNAL_DBM); - /* Initialize rate-control variables */ - dev->max_rates = 1; - dev->max_rate_tries = RETRY_COUNT; - - eeprom.data = dev; - eeprom.register_read = rtl8187_eeprom_register_read; - eeprom.register_write = rtl8187_eeprom_register_write; - if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6)) - eeprom.width = PCI_EEPROM_WIDTH_93C66; - else - eeprom.width = PCI_EEPROM_WIDTH_93C46; - - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); - udelay(10); - - eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR, - (__le16 __force *)mac_addr, 3); - if (!is_valid_ether_addr(mac_addr)) { - printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly " - "generated MAC address\n"); - eth_random_addr(mac_addr); - } - SET_IEEE80211_PERM_ADDR(dev, mac_addr); - - channel = priv->channels; - for (i = 0; i < 3; i++) { - eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i, - &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - (*channel++).hw_value = txpwr >> 8; - } - for (i = 0; i < 2; i++) { - eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i, - &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - (*channel++).hw_value = txpwr >> 8; - } - - eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE, - &priv->txpwr_base); - - reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; - rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); - /* 0 means asic B-cut, we should use SW 3 wire - * bit-by-bit banging for radio. 1 means we can use - * USB specific request to write radio registers */ - priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3; - rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); - rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); - - if (!priv->is_rtl8187b) { - u32 reg32; - reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF); - reg32 &= RTL818X_TX_CONF_HWVER_MASK; - switch (reg32) { - case RTL818X_TX_CONF_R8187vD_B: - /* Some RTL8187B devices have a USB ID of 0x8187 - * detect them here */ - chip_name = "RTL8187BvB(early)"; - priv->is_rtl8187b = 1; - priv->hw_rev = RTL8187BvB; - break; - case RTL818X_TX_CONF_R8187vD: - chip_name = "RTL8187vD"; - break; - default: - chip_name = "RTL8187vB (default)"; - } - } else { - /* - * Force USB request to write radio registers for 8187B, Realtek - * only uses it in their sources - */ - /*if (priv->asic_rev == 0) { - printk(KERN_WARNING "rtl8187: Forcing use of USB " - "requests to write to radio registers\n"); - priv->asic_rev = 1; - }*/ - switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) { - case RTL818X_R8187B_B: - chip_name = "RTL8187BvB"; - priv->hw_rev = RTL8187BvB; - break; - case RTL818X_R8187B_D: - chip_name = "RTL8187BvD"; - priv->hw_rev = RTL8187BvD; - break; - case RTL818X_R8187B_E: - chip_name = "RTL8187BvE"; - priv->hw_rev = RTL8187BvE; - break; - default: - chip_name = "RTL8187BvB (default)"; - priv->hw_rev = RTL8187BvB; - } - } - - if (!priv->is_rtl8187b) { - for (i = 0; i < 2; i++) { - eeprom_93cx6_read(&eeprom, - RTL8187_EEPROM_TXPWR_CHAN_6 + i, - &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - (*channel++).hw_value = txpwr >> 8; - } - } else { - eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6, - &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - - eeprom_93cx6_read(&eeprom, 0x0A, &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - - eeprom_93cx6_read(&eeprom, 0x1C, &txpwr); - (*channel++).hw_value = txpwr & 0xFF; - (*channel++).hw_value = txpwr >> 8; - } - /* Handle the differing rfkill GPIO bit in different models */ - priv->rfkill_mask = RFKILL_MASK_8187_89_97; - if (product_id == 0x8197 || product_id == 0x8198) { - eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, ®); - if (reg & 0xFF00) - priv->rfkill_mask = RFKILL_MASK_8198; - } - dev->vif_data_size = sizeof(struct rtl8187_vif); - dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) ; - - if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b) - printk(KERN_INFO "rtl8187: inconsistency between id with OEM" - " info!\n"); - - priv->rf = rtl8187_detect_rf(dev); - dev->extra_tx_headroom = (!priv->is_rtl8187b) ? - sizeof(struct rtl8187_tx_hdr) : - sizeof(struct rtl8187b_tx_hdr); - if (!priv->is_rtl8187b) - dev->queues = 1; - else - dev->queues = 4; - - err = ieee80211_register_hw(dev); - if (err) { - printk(KERN_ERR "rtl8187: Cannot register device\n"); - goto err_free_dmabuf; - } - mutex_init(&priv->conf_mutex); - skb_queue_head_init(&priv->b_tx_status.queue); - - wiphy_info(dev->wiphy, "hwaddr %pM, %s V%d + %s, rfkill mask %d\n", - mac_addr, chip_name, priv->asic_rev, priv->rf->name, - priv->rfkill_mask); - -#ifdef CONFIG_RTL8187_LEDS - eeprom_93cx6_read(&eeprom, 0x3F, ®); - reg &= 0xFF; - rtl8187_leds_init(dev, reg); -#endif - rtl8187_rfkill_init(dev); - - return 0; - - err_free_dmabuf: - kfree(priv->io_dmabuf); - usb_set_intfdata(intf, NULL); - usb_put_dev(udev); - err_free_dev: - ieee80211_free_hw(dev); - return err; -} - -static void rtl8187_disconnect(struct usb_interface *intf) -{ - struct ieee80211_hw *dev = usb_get_intfdata(intf); - struct rtl8187_priv *priv; - - if (!dev) - return; - -#ifdef CONFIG_RTL8187_LEDS - rtl8187_leds_exit(dev); -#endif - rtl8187_rfkill_exit(dev); - ieee80211_unregister_hw(dev); - - priv = dev->priv; - usb_reset_device(priv->udev); - usb_put_dev(interface_to_usbdev(intf)); - kfree(priv->io_dmabuf); - ieee80211_free_hw(dev); -} - -static struct usb_driver rtl8187_driver = { - .name = KBUILD_MODNAME, - .id_table = rtl8187_table, - .probe = rtl8187_probe, - .disconnect = rtl8187_disconnect, - .disable_hub_initiated_lpm = 1, -}; - -module_usb_driver(rtl8187_driver); |