1c740ed221
This change improves the maintainability of these drivers. No functionality is changed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1082 lines
30 KiB
C
1082 lines
30 KiB
C
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/*
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* Linux device driver for RTL8180 / RTL8185
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*
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* Copyright 2007 Michael Wu <flamingice@sourmilk.net>
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* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
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*
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* Based on the r8180 driver, which is:
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* Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
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*
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* Thanks to Realtek for their support!
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/etherdevice.h>
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#include <linux/eeprom_93cx6.h>
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#include <net/mac80211.h>
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#include "rtl8180.h"
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#include "rtl8180_rtl8225.h"
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#include "rtl8180_sa2400.h"
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#include "rtl8180_max2820.h"
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#include "rtl8180_grf5101.h"
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MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
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MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
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MODULE_LICENSE("GPL");
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static struct pci_device_id rtl8180_table[] __devinitdata = {
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/* rtl8185 */
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{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) },
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{ PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) },
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{ PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) },
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/* rtl8180 */
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{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) },
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{ PCI_DEVICE(0x1799, 0x6001) },
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{ PCI_DEVICE(0x1799, 0x6020) },
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{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) },
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{ }
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};
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MODULE_DEVICE_TABLE(pci, rtl8180_table);
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static const struct ieee80211_rate rtl818x_rates[] = {
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{ .bitrate = 10, .hw_value = 0, },
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{ .bitrate = 20, .hw_value = 1, },
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{ .bitrate = 55, .hw_value = 2, },
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{ .bitrate = 110, .hw_value = 3, },
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{ .bitrate = 60, .hw_value = 4, },
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{ .bitrate = 90, .hw_value = 5, },
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{ .bitrate = 120, .hw_value = 6, },
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{ .bitrate = 180, .hw_value = 7, },
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{ .bitrate = 240, .hw_value = 8, },
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{ .bitrate = 360, .hw_value = 9, },
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{ .bitrate = 480, .hw_value = 10, },
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{ .bitrate = 540, .hw_value = 11, },
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};
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static const struct ieee80211_channel rtl818x_channels[] = {
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{ .center_freq = 2412 },
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{ .center_freq = 2417 },
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{ .center_freq = 2422 },
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{ .center_freq = 2427 },
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{ .center_freq = 2432 },
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{ .center_freq = 2437 },
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{ .center_freq = 2442 },
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{ .center_freq = 2447 },
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{ .center_freq = 2452 },
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{ .center_freq = 2457 },
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{ .center_freq = 2462 },
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{ .center_freq = 2467 },
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{ .center_freq = 2472 },
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{ .center_freq = 2484 },
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};
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void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
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{
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struct rtl8180_priv *priv = dev->priv;
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int i = 10;
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u32 buf;
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buf = (data << 8) | addr;
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rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
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while (i--) {
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rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
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if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
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return;
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}
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}
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static void rtl8180_handle_rx(struct ieee80211_hw *dev)
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{
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struct rtl8180_priv *priv = dev->priv;
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unsigned int count = 32;
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while (count--) {
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struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
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struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
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u32 flags = le32_to_cpu(entry->flags);
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if (flags & RTL818X_RX_DESC_FLAG_OWN)
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return;
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if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
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RTL818X_RX_DESC_FLAG_FOF |
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RTL818X_RX_DESC_FLAG_RX_ERR)))
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goto done;
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else {
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u32 flags2 = le32_to_cpu(entry->flags2);
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struct ieee80211_rx_status rx_status = {0};
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struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
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if (unlikely(!new_skb))
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goto done;
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pci_unmap_single(priv->pdev,
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*((dma_addr_t *)skb->cb),
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MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
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skb_put(skb, flags & 0xFFF);
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rx_status.antenna = (flags2 >> 15) & 1;
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/* TODO: improve signal/rssi reporting */
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rx_status.qual = flags2 & 0xFF;
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rx_status.signal = (flags2 >> 8) & 0x7F;
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/* XXX: is this correct? */
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rx_status.rate_idx = (flags >> 20) & 0xF;
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rx_status.freq = dev->conf.channel->center_freq;
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rx_status.band = dev->conf.channel->band;
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rx_status.mactime = le64_to_cpu(entry->tsft);
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rx_status.flag |= RX_FLAG_TSFT;
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if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
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rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
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ieee80211_rx_irqsafe(dev, skb, &rx_status);
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skb = new_skb;
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priv->rx_buf[priv->rx_idx] = skb;
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*((dma_addr_t *) skb->cb) =
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pci_map_single(priv->pdev, skb_tail_pointer(skb),
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MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
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}
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done:
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entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
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entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
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MAX_RX_SIZE);
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if (priv->rx_idx == 31)
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entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
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priv->rx_idx = (priv->rx_idx + 1) % 32;
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}
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}
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static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
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{
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struct rtl8180_priv *priv = dev->priv;
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struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
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while (skb_queue_len(&ring->queue)) {
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struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
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struct sk_buff *skb;
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struct ieee80211_tx_info *info;
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u32 flags = le32_to_cpu(entry->flags);
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if (flags & RTL818X_TX_DESC_FLAG_OWN)
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return;
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ring->idx = (ring->idx + 1) % ring->entries;
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skb = __skb_dequeue(&ring->queue);
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pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
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skb->len, PCI_DMA_TODEVICE);
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info = IEEE80211_SKB_CB(skb);
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ieee80211_tx_info_clear_status(info);
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if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
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(flags & RTL818X_TX_DESC_FLAG_TX_OK))
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info->flags |= IEEE80211_TX_STAT_ACK;
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info->status.rates[0].count = (flags & 0xFF) + 1;
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ieee80211_tx_status_irqsafe(dev, skb);
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if (ring->entries - skb_queue_len(&ring->queue) == 2)
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ieee80211_wake_queue(dev, prio);
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}
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}
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static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
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{
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struct ieee80211_hw *dev = dev_id;
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struct rtl8180_priv *priv = dev->priv;
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u16 reg;
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spin_lock(&priv->lock);
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reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
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if (unlikely(reg == 0xFFFF)) {
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spin_unlock(&priv->lock);
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return IRQ_HANDLED;
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}
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rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
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if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
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rtl8180_handle_tx(dev, 3);
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if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
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rtl8180_handle_tx(dev, 2);
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if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
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rtl8180_handle_tx(dev, 1);
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if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
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rtl8180_handle_tx(dev, 0);
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if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
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rtl8180_handle_rx(dev);
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spin_unlock(&priv->lock);
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return IRQ_HANDLED;
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}
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static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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struct rtl8180_priv *priv = dev->priv;
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struct rtl8180_tx_ring *ring;
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struct rtl8180_tx_desc *entry;
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unsigned long flags;
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unsigned int idx, prio;
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dma_addr_t mapping;
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u32 tx_flags;
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u8 rc_flags;
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u16 plcp_len = 0;
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__le16 rts_duration = 0;
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prio = skb_get_queue_mapping(skb);
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ring = &priv->tx_ring[prio];
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mapping = pci_map_single(priv->pdev, skb->data,
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skb->len, PCI_DMA_TODEVICE);
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tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
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RTL818X_TX_DESC_FLAG_LS |
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(ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
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skb->len;
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if (priv->r8185)
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tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
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RTL818X_TX_DESC_FLAG_NO_ENC;
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rc_flags = info->control.rates[0].flags;
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if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
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tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
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tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
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} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
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tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
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tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
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}
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if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
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rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
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info);
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if (!priv->r8185) {
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unsigned int remainder;
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plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
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(ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
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remainder = (16 * (skb->len + 4)) %
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((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
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if (remainder > 0 && remainder <= 6)
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plcp_len |= 1 << 15;
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}
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spin_lock_irqsave(&priv->lock, flags);
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idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
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entry = &ring->desc[idx];
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entry->rts_duration = rts_duration;
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entry->plcp_len = cpu_to_le16(plcp_len);
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entry->tx_buf = cpu_to_le32(mapping);
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entry->frame_len = cpu_to_le32(skb->len);
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entry->flags2 = info->control.rates[1].idx >= 0 ?
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ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
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entry->retry_limit = info->control.rates[0].count;
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entry->flags = cpu_to_le32(tx_flags);
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__skb_queue_tail(&ring->queue, skb);
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if (ring->entries - skb_queue_len(&ring->queue) < 2)
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ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
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spin_unlock_irqrestore(&priv->lock, flags);
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rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
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return 0;
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}
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void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
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{
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u8 reg;
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
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rtl818x_iowrite8(priv, &priv->map->CONFIG3,
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reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
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rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
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rtl818x_iowrite8(priv, &priv->map->CONFIG3,
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reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
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}
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static int rtl8180_init_hw(struct ieee80211_hw *dev)
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{
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struct rtl8180_priv *priv = dev->priv;
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u16 reg;
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rtl818x_iowrite8(priv, &priv->map->CMD, 0);
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rtl818x_ioread8(priv, &priv->map->CMD);
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msleep(10);
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/* reset */
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rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
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rtl818x_ioread8(priv, &priv->map->CMD);
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reg = rtl818x_ioread8(priv, &priv->map->CMD);
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reg &= (1 << 1);
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reg |= RTL818X_CMD_RESET;
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rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
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rtl818x_ioread8(priv, &priv->map->CMD);
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msleep(200);
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/* check success of reset */
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if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
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printk(KERN_ERR "%s: reset timeout!\n", wiphy_name(dev->wiphy));
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return -ETIMEDOUT;
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}
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
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rtl818x_ioread8(priv, &priv->map->CMD);
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msleep(200);
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if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
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/* For cardbus */
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
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reg |= 1 << 1;
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rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
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reg = rtl818x_ioread16(priv, &priv->map->FEMR);
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reg |= (1 << 15) | (1 << 14) | (1 << 4);
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rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
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}
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rtl818x_iowrite8(priv, &priv->map->MSR, 0);
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if (!priv->r8185)
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rtl8180_set_anaparam(priv, priv->anaparam);
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rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
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rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
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rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
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rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
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rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
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/* TODO: necessary? specs indicate not */
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
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rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
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if (priv->r8185) {
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
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rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
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}
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
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/* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
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/* TODO: turn off hw wep on rtl8180 */
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rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
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if (priv->r8185) {
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rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
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rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
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rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
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rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
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/* TODO: set ClkRun enable? necessary? */
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reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
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rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
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reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
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rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
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rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
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} else {
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rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
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rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
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rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
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rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
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}
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priv->rf->init(dev);
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if (priv->r8185)
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rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
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return 0;
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}
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|
|
static int rtl8180_init_rx_ring(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
struct rtl8180_rx_desc *entry;
|
|
int i;
|
|
|
|
priv->rx_ring = pci_alloc_consistent(priv->pdev,
|
|
sizeof(*priv->rx_ring) * 32,
|
|
&priv->rx_ring_dma);
|
|
|
|
if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) {
|
|
printk(KERN_ERR "%s: Cannot allocate RX ring\n",
|
|
wiphy_name(dev->wiphy));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32);
|
|
priv->rx_idx = 0;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE);
|
|
dma_addr_t *mapping;
|
|
entry = &priv->rx_ring[i];
|
|
if (!skb)
|
|
return 0;
|
|
|
|
priv->rx_buf[i] = skb;
|
|
mapping = (dma_addr_t *)skb->cb;
|
|
*mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
|
|
MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
|
|
entry->rx_buf = cpu_to_le32(*mapping);
|
|
entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
|
|
MAX_RX_SIZE);
|
|
}
|
|
entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8180_free_rx_ring(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
int i;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
struct sk_buff *skb = priv->rx_buf[i];
|
|
if (!skb)
|
|
continue;
|
|
|
|
pci_unmap_single(priv->pdev,
|
|
*((dma_addr_t *)skb->cb),
|
|
MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32,
|
|
priv->rx_ring, priv->rx_ring_dma);
|
|
priv->rx_ring = NULL;
|
|
}
|
|
|
|
static int rtl8180_init_tx_ring(struct ieee80211_hw *dev,
|
|
unsigned int prio, unsigned int entries)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
struct rtl8180_tx_desc *ring;
|
|
dma_addr_t dma;
|
|
int i;
|
|
|
|
ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
|
|
if (!ring || (unsigned long)ring & 0xFF) {
|
|
printk(KERN_ERR "%s: Cannot allocate TX ring (prio = %d)\n",
|
|
wiphy_name(dev->wiphy), prio);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(ring, 0, sizeof(*ring)*entries);
|
|
priv->tx_ring[prio].desc = ring;
|
|
priv->tx_ring[prio].dma = dma;
|
|
priv->tx_ring[prio].idx = 0;
|
|
priv->tx_ring[prio].entries = entries;
|
|
skb_queue_head_init(&priv->tx_ring[prio].queue);
|
|
|
|
for (i = 0; i < entries; i++)
|
|
ring[i].next_tx_desc =
|
|
cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
|
|
|
|
while (skb_queue_len(&ring->queue)) {
|
|
struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
|
|
struct sk_buff *skb = __skb_dequeue(&ring->queue);
|
|
|
|
pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
|
|
skb->len, PCI_DMA_TODEVICE);
|
|
kfree_skb(skb);
|
|
ring->idx = (ring->idx + 1) % ring->entries;
|
|
}
|
|
|
|
pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
|
|
ring->desc, ring->dma);
|
|
ring->desc = NULL;
|
|
}
|
|
|
|
static int rtl8180_start(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
int ret, i;
|
|
u32 reg;
|
|
|
|
ret = rtl8180_init_rx_ring(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
if ((ret = rtl8180_init_tx_ring(dev, i, 16)))
|
|
goto err_free_rings;
|
|
|
|
ret = rtl8180_init_hw(dev);
|
|
if (ret)
|
|
goto err_free_rings;
|
|
|
|
rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
|
|
rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma);
|
|
rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma);
|
|
rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma);
|
|
rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
|
|
|
|
ret = request_irq(priv->pdev->irq, &rtl8180_interrupt,
|
|
IRQF_SHARED, KBUILD_MODNAME, dev);
|
|
if (ret) {
|
|
printk(KERN_ERR "%s: failed to register IRQ handler\n",
|
|
wiphy_name(dev->wiphy));
|
|
goto err_free_rings;
|
|
}
|
|
|
|
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF);
|
|
|
|
rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
|
|
rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
|
|
|
|
reg = RTL818X_RX_CONF_ONLYERLPKT |
|
|
RTL818X_RX_CONF_RX_AUTORESETPHY |
|
|
RTL818X_RX_CONF_MGMT |
|
|
RTL818X_RX_CONF_DATA |
|
|
(7 << 8 /* MAX RX DMA */) |
|
|
RTL818X_RX_CONF_BROADCAST |
|
|
RTL818X_RX_CONF_NICMAC;
|
|
|
|
if (priv->r8185)
|
|
reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
|
|
else {
|
|
reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
|
|
? RTL818X_RX_CONF_CSDM1 : 0;
|
|
reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
|
|
? RTL818X_RX_CONF_CSDM2 : 0;
|
|
}
|
|
|
|
priv->rx_conf = reg;
|
|
rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
|
|
|
|
if (priv->r8185) {
|
|
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);
|
|
|
|
/* disable early TX */
|
|
rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f);
|
|
}
|
|
|
|
reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
|
|
reg |= (6 << 21 /* MAX TX DMA */) |
|
|
RTL818X_TX_CONF_NO_ICV;
|
|
|
|
if (priv->r8185)
|
|
reg &= ~RTL818X_TX_CONF_PROBE_DTS;
|
|
else
|
|
reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
|
|
|
|
/* different meaning, same value on both rtl8185 and rtl8180 */
|
|
reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
|
|
|
|
rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
|
|
|
|
reg = rtl818x_ioread8(priv, &priv->map->CMD);
|
|
reg |= RTL818X_CMD_RX_ENABLE;
|
|
reg |= RTL818X_CMD_TX_ENABLE;
|
|
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
|
|
|
|
priv->mode = NL80211_IFTYPE_MONITOR;
|
|
return 0;
|
|
|
|
err_free_rings:
|
|
rtl8180_free_rx_ring(dev);
|
|
for (i = 0; i < 4; i++)
|
|
if (priv->tx_ring[i].desc)
|
|
rtl8180_free_tx_ring(dev, i);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void rtl8180_stop(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
u8 reg;
|
|
int i;
|
|
|
|
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
|
|
|
|
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);
|
|
|
|
free_irq(priv->pdev->irq, dev);
|
|
|
|
rtl8180_free_rx_ring(dev);
|
|
for (i = 0; i < 4; i++)
|
|
rtl8180_free_tx_ring(dev, i);
|
|
}
|
|
|
|
static int rtl8180_add_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
|
|
if (priv->mode != NL80211_IFTYPE_MONITOR)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (conf->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
priv->mode = conf->type;
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
priv->vif = conf->vif;
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
|
|
rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
|
|
le32_to_cpu(*(__le32 *)conf->mac_addr));
|
|
rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
|
|
le16_to_cpu(*(__le16 *)(conf->mac_addr + 4)));
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8180_remove_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
priv->mode = NL80211_IFTYPE_MONITOR;
|
|
priv->vif = NULL;
|
|
}
|
|
|
|
static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
struct ieee80211_conf *conf = &dev->conf;
|
|
|
|
priv->rf->set_chan(dev, conf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8180_config_interface(struct ieee80211_hw *dev,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_if_conf *conf)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
int i;
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
|
|
|
|
if (is_valid_ether_addr(conf->bssid))
|
|
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
|
|
else
|
|
rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8180_configure_filter(struct ieee80211_hw *dev,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
int mc_count, struct dev_addr_list *mclist)
|
|
{
|
|
struct rtl8180_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(priv, &priv->map->RX_CONF, priv->rx_conf);
|
|
}
|
|
|
|
static const struct ieee80211_ops rtl8180_ops = {
|
|
.tx = rtl8180_tx,
|
|
.start = rtl8180_start,
|
|
.stop = rtl8180_stop,
|
|
.add_interface = rtl8180_add_interface,
|
|
.remove_interface = rtl8180_remove_interface,
|
|
.config = rtl8180_config,
|
|
.config_interface = rtl8180_config_interface,
|
|
.configure_filter = rtl8180_configure_filter,
|
|
};
|
|
|
|
static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)
|
|
{
|
|
struct ieee80211_hw *dev = eeprom->data;
|
|
struct rtl8180_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 rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom)
|
|
{
|
|
struct ieee80211_hw *dev = eeprom->data;
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
u8 reg = 2 << 6;
|
|
|
|
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);
|
|
rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
|
|
udelay(10);
|
|
}
|
|
|
|
static int __devinit rtl8180_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct ieee80211_hw *dev;
|
|
struct rtl8180_priv *priv;
|
|
unsigned long mem_addr, mem_len;
|
|
unsigned int io_addr, io_len;
|
|
int err, i;
|
|
struct eeprom_93cx6 eeprom;
|
|
const char *chip_name, *rf_name = NULL;
|
|
u32 reg;
|
|
u16 eeprom_val;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err) {
|
|
printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n",
|
|
pci_name(pdev));
|
|
return err;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, KBUILD_MODNAME);
|
|
if (err) {
|
|
printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n",
|
|
pci_name(pdev));
|
|
return err;
|
|
}
|
|
|
|
io_addr = pci_resource_start(pdev, 0);
|
|
io_len = pci_resource_len(pdev, 0);
|
|
mem_addr = pci_resource_start(pdev, 1);
|
|
mem_len = pci_resource_len(pdev, 1);
|
|
|
|
if (mem_len < sizeof(struct rtl818x_csr) ||
|
|
io_len < sizeof(struct rtl818x_csr)) {
|
|
printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n",
|
|
pci_name(pdev));
|
|
err = -ENOMEM;
|
|
goto err_free_reg;
|
|
}
|
|
|
|
if ((err = pci_set_dma_mask(pdev, 0xFFFFFF00ULL)) ||
|
|
(err = pci_set_consistent_dma_mask(pdev, 0xFFFFFF00ULL))) {
|
|
printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n",
|
|
pci_name(pdev));
|
|
goto err_free_reg;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops);
|
|
if (!dev) {
|
|
printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n",
|
|
pci_name(pdev));
|
|
err = -ENOMEM;
|
|
goto err_free_reg;
|
|
}
|
|
|
|
priv = dev->priv;
|
|
priv->pdev = pdev;
|
|
|
|
dev->max_rates = 2;
|
|
SET_IEEE80211_DEV(dev, &pdev->dev);
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
priv->map = pci_iomap(pdev, 1, mem_len);
|
|
if (!priv->map)
|
|
priv->map = pci_iomap(pdev, 0, io_len);
|
|
|
|
if (!priv->map) {
|
|
printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n",
|
|
pci_name(pdev));
|
|
goto err_free_dev;
|
|
}
|
|
|
|
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->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 = 4;
|
|
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
|
|
|
|
dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
|
|
IEEE80211_HW_RX_INCLUDES_FCS |
|
|
IEEE80211_HW_SIGNAL_UNSPEC;
|
|
dev->queues = 1;
|
|
dev->max_signal = 65;
|
|
|
|
reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
|
|
reg &= RTL818X_TX_CONF_HWVER_MASK;
|
|
switch (reg) {
|
|
case RTL818X_TX_CONF_R8180_ABCD:
|
|
chip_name = "RTL8180";
|
|
break;
|
|
case RTL818X_TX_CONF_R8180_F:
|
|
chip_name = "RTL8180vF";
|
|
break;
|
|
case RTL818X_TX_CONF_R8185_ABC:
|
|
chip_name = "RTL8185";
|
|
break;
|
|
case RTL818X_TX_CONF_R8185_D:
|
|
chip_name = "RTL8185vD";
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n",
|
|
pci_name(pdev), reg >> 25);
|
|
goto err_iounmap;
|
|
}
|
|
|
|
priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
|
|
if (priv->r8185) {
|
|
priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates);
|
|
pci_try_set_mwi(pdev);
|
|
}
|
|
|
|
eeprom.data = dev;
|
|
eeprom.register_read = rtl8180_eeprom_register_read;
|
|
eeprom.register_write = rtl8180_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_PROGRAM);
|
|
rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
|
|
udelay(10);
|
|
|
|
eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val);
|
|
eeprom_val &= 0xFF;
|
|
switch (eeprom_val) {
|
|
case 1: rf_name = "Intersil";
|
|
break;
|
|
case 2: rf_name = "RFMD";
|
|
break;
|
|
case 3: priv->rf = &sa2400_rf_ops;
|
|
break;
|
|
case 4: priv->rf = &max2820_rf_ops;
|
|
break;
|
|
case 5: priv->rf = &grf5101_rf_ops;
|
|
break;
|
|
case 9: priv->rf = rtl8180_detect_rf(dev);
|
|
break;
|
|
case 10:
|
|
rf_name = "RTL8255";
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n",
|
|
pci_name(pdev), eeprom_val);
|
|
goto err_iounmap;
|
|
}
|
|
|
|
if (!priv->rf) {
|
|
printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n",
|
|
pci_name(pdev), rf_name);
|
|
goto err_iounmap;
|
|
}
|
|
|
|
eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val);
|
|
priv->csthreshold = eeprom_val >> 8;
|
|
if (!priv->r8185) {
|
|
__le32 anaparam;
|
|
eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2);
|
|
priv->anaparam = le32_to_cpu(anaparam);
|
|
eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam);
|
|
}
|
|
|
|
eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)dev->wiphy->perm_addr, 3);
|
|
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
|
|
printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
|
|
" randomly generated MAC addr\n", pci_name(pdev));
|
|
random_ether_addr(dev->wiphy->perm_addr);
|
|
}
|
|
|
|
/* CCK TX power */
|
|
for (i = 0; i < 14; i += 2) {
|
|
u16 txpwr;
|
|
eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr);
|
|
priv->channels[i].hw_value = txpwr & 0xFF;
|
|
priv->channels[i + 1].hw_value = txpwr >> 8;
|
|
}
|
|
|
|
/* OFDM TX power */
|
|
if (priv->r8185) {
|
|
for (i = 0; i < 14; i += 2) {
|
|
u16 txpwr;
|
|
eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr);
|
|
priv->channels[i].hw_value |= (txpwr & 0xFF) << 8;
|
|
priv->channels[i + 1].hw_value |= txpwr & 0xFF00;
|
|
}
|
|
}
|
|
|
|
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
|
|
|
|
spin_lock_init(&priv->lock);
|
|
|
|
err = ieee80211_register_hw(dev);
|
|
if (err) {
|
|
printk(KERN_ERR "%s (rtl8180): Cannot register device\n",
|
|
pci_name(pdev));
|
|
goto err_iounmap;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: hwaddr %pM, %s + %s\n",
|
|
wiphy_name(dev->wiphy), dev->wiphy->perm_addr,
|
|
chip_name, priv->rf->name);
|
|
|
|
return 0;
|
|
|
|
err_iounmap:
|
|
iounmap(priv->map);
|
|
|
|
err_free_dev:
|
|
pci_set_drvdata(pdev, NULL);
|
|
ieee80211_free_hw(dev);
|
|
|
|
err_free_reg:
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
return err;
|
|
}
|
|
|
|
static void __devexit rtl8180_remove(struct pci_dev *pdev)
|
|
{
|
|
struct ieee80211_hw *dev = pci_get_drvdata(pdev);
|
|
struct rtl8180_priv *priv;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
ieee80211_unregister_hw(dev);
|
|
|
|
priv = dev->priv;
|
|
|
|
pci_iounmap(pdev, priv->map);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
ieee80211_free_hw(dev);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
pci_save_state(pdev);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8180_resume(struct pci_dev *pdev)
|
|
{
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_restore_state(pdev);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pci_driver rtl8180_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = rtl8180_table,
|
|
.probe = rtl8180_probe,
|
|
.remove = __devexit_p(rtl8180_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = rtl8180_suspend,
|
|
.resume = rtl8180_resume,
|
|
#endif /* CONFIG_PM */
|
|
};
|
|
|
|
static int __init rtl8180_init(void)
|
|
{
|
|
return pci_register_driver(&rtl8180_driver);
|
|
}
|
|
|
|
static void __exit rtl8180_exit(void)
|
|
{
|
|
pci_unregister_driver(&rtl8180_driver);
|
|
}
|
|
|
|
module_init(rtl8180_init);
|
|
module_exit(rtl8180_exit);
|