Linux-libre 4.5-gnu

1 files changed, 1993 insertions, 0 deletions

diff --git a/drivers/net/wireless/admtek/adm8211.c b/drivers/net/wireless/admtek/adm8211.c
new file mode 100644
index 000000000..15f057ed4
--- /dev/null
+++ b/drivers/net/wireless/admtek/adm8211.c
@@ -0,0 +1,1993 @@
+
+/*
+ * Linux device driver for ADMtek ADM8211 (IEEE 802.11b MAC/BBP)
+ *
+ * Copyright (c) 2003, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2007, Michael Wu <flamingice@sourmilk.net>
+ * Some parts copyright (c) 2003 by David Young <dyoung@pobox.com>
+ * and used with permission.
+ *
+ * Much thanks to Infineon-ADMtek for their support of this driver.
+ *
+ * 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. See README and COPYING for
+ * more details.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/if.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/crc32.h>
+#include <linux/eeprom_93cx6.h>
+#include <linux/module.h>
+#include <net/mac80211.h>
+
+#include "adm8211.h"
+
+MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
+MODULE_AUTHOR("Jouni Malinen <j@w1.fi>");
+MODULE_DESCRIPTION("Driver for IEEE 802.11b wireless cards based on ADMtek ADM8211");
+MODULE_SUPPORTED_DEVICE("ADM8211");
+MODULE_LICENSE("GPL");
+
+static unsigned int tx_ring_size __read_mostly = 16;
+static unsigned int rx_ring_size __read_mostly = 16;
+
+module_param(tx_ring_size, uint, 0);
+module_param(rx_ring_size, uint, 0);
+
+static const struct pci_device_id adm8211_pci_id_table[] = {
+	/* ADMtek ADM8211 */
+	{ PCI_DEVICE(0x10B7, 0x6000) }, /* 3Com 3CRSHPW796 */
+	{ PCI_DEVICE(0x1200, 0x8201) }, /* ? */
+	{ PCI_DEVICE(0x1317, 0x8201) }, /* ADM8211A */
+	{ PCI_DEVICE(0x1317, 0x8211) }, /* ADM8211B/C */
+	{ 0 }
+};
+
+static struct ieee80211_rate adm8211_rates[] = {
+	{ .bitrate = 10, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 220, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, /* XX ?? */
+};
+
+static const struct ieee80211_channel adm8211_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 adm8211_eeprom_register_read(struct eeprom_93cx6 *eeprom)
+{
+	struct adm8211_priv *priv = eeprom->data;
+	u32 reg = ADM8211_CSR_READ(SPR);
+
+	eeprom->reg_data_in = reg & ADM8211_SPR_SDI;
+	eeprom->reg_data_out = reg & ADM8211_SPR_SDO;
+	eeprom->reg_data_clock = reg & ADM8211_SPR_SCLK;
+	eeprom->reg_chip_select = reg & ADM8211_SPR_SCS;
+}
+
+static void adm8211_eeprom_register_write(struct eeprom_93cx6 *eeprom)
+{
+	struct adm8211_priv *priv = eeprom->data;
+	u32 reg = 0x4000 | ADM8211_SPR_SRS;
+
+	if (eeprom->reg_data_in)
+		reg |= ADM8211_SPR_SDI;
+	if (eeprom->reg_data_out)
+		reg |= ADM8211_SPR_SDO;
+	if (eeprom->reg_data_clock)
+		reg |= ADM8211_SPR_SCLK;
+	if (eeprom->reg_chip_select)
+		reg |= ADM8211_SPR_SCS;
+
+	ADM8211_CSR_WRITE(SPR, reg);
+	ADM8211_CSR_READ(SPR);		/* eeprom_delay */
+}
+
+static int adm8211_read_eeprom(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int words, i;
+	struct ieee80211_chan_range chan_range;
+	u16 cr49;
+	struct eeprom_93cx6 eeprom = {
+		.data		= priv,
+		.register_read	= adm8211_eeprom_register_read,
+		.register_write	= adm8211_eeprom_register_write
+	};
+
+	if (ADM8211_CSR_READ(CSR_TEST0) & ADM8211_CSR_TEST0_EPTYP) {
+		/* 256 * 16-bit = 512 bytes */
+		eeprom.width = PCI_EEPROM_WIDTH_93C66;
+		words = 256;
+	} else {
+		/* 64 * 16-bit = 128 bytes */
+		eeprom.width = PCI_EEPROM_WIDTH_93C46;
+		words = 64;
+	}
+
+	priv->eeprom_len = words * 2;
+	priv->eeprom = kmalloc(priv->eeprom_len, GFP_KERNEL);
+	if (!priv->eeprom)
+		return -ENOMEM;
+
+	eeprom_93cx6_multiread(&eeprom, 0, (__le16 *)priv->eeprom, words);
+
+	cr49 = le16_to_cpu(priv->eeprom->cr49);
+	priv->rf_type = (cr49 >> 3) & 0x7;
+	switch (priv->rf_type) {
+	case ADM8211_TYPE_INTERSIL:
+	case ADM8211_TYPE_RFMD:
+	case ADM8211_TYPE_MARVEL:
+	case ADM8211_TYPE_AIROHA:
+	case ADM8211_TYPE_ADMTEK:
+		break;
+
+	default:
+		if (priv->pdev->revision < ADM8211_REV_CA)
+			priv->rf_type = ADM8211_TYPE_RFMD;
+		else
+			priv->rf_type = ADM8211_TYPE_AIROHA;
+
+		printk(KERN_WARNING "%s (adm8211): Unknown RFtype %d\n",
+		       pci_name(priv->pdev), (cr49 >> 3) & 0x7);
+	}
+
+	priv->bbp_type = cr49 & 0x7;
+	switch (priv->bbp_type) {
+	case ADM8211_TYPE_INTERSIL:
+	case ADM8211_TYPE_RFMD:
+	case ADM8211_TYPE_MARVEL:
+	case ADM8211_TYPE_AIROHA:
+	case ADM8211_TYPE_ADMTEK:
+		break;
+	default:
+		if (priv->pdev->revision < ADM8211_REV_CA)
+			priv->bbp_type = ADM8211_TYPE_RFMD;
+		else
+			priv->bbp_type = ADM8211_TYPE_ADMTEK;
+
+		printk(KERN_WARNING "%s (adm8211): Unknown BBPtype: %d\n",
+		       pci_name(priv->pdev), cr49 >> 3);
+	}
+
+	if (priv->eeprom->country_code >= ARRAY_SIZE(cranges)) {
+		printk(KERN_WARNING "%s (adm8211): Invalid country code (%d)\n",
+		       pci_name(priv->pdev), priv->eeprom->country_code);
+
+		chan_range = cranges[2];
+	} else
+		chan_range = cranges[priv->eeprom->country_code];
+
+	printk(KERN_DEBUG "%s (adm8211): Channel range: %d - %d\n",
+	       pci_name(priv->pdev), (int)chan_range.min, (int)chan_range.max);
+
+	BUILD_BUG_ON(sizeof(priv->channels) != sizeof(adm8211_channels));
+
+	memcpy(priv->channels, adm8211_channels, sizeof(priv->channels));
+	priv->band.channels = priv->channels;
+	priv->band.n_channels = ARRAY_SIZE(adm8211_channels);
+	priv->band.bitrates = adm8211_rates;
+	priv->band.n_bitrates = ARRAY_SIZE(adm8211_rates);
+
+	for (i = 1; i <= ARRAY_SIZE(adm8211_channels); i++)
+		if (i < chan_range.min || i > chan_range.max)
+			priv->channels[i - 1].flags |= IEEE80211_CHAN_DISABLED;
+
+	switch (priv->eeprom->specific_bbptype) {
+	case ADM8211_BBP_RFMD3000:
+	case ADM8211_BBP_RFMD3002:
+	case ADM8211_BBP_ADM8011:
+		priv->specific_bbptype = priv->eeprom->specific_bbptype;
+		break;
+
+	default:
+		if (priv->pdev->revision < ADM8211_REV_CA)
+			priv->specific_bbptype = ADM8211_BBP_RFMD3000;
+		else
+			priv->specific_bbptype = ADM8211_BBP_ADM8011;
+
+		printk(KERN_WARNING "%s (adm8211): Unknown specific BBP: %d\n",
+		       pci_name(priv->pdev), priv->eeprom->specific_bbptype);
+	}
+
+	switch (priv->eeprom->specific_rftype) {
+	case ADM8211_RFMD2948:
+	case ADM8211_RFMD2958:
+	case ADM8211_RFMD2958_RF3000_CONTROL_POWER:
+	case ADM8211_MAX2820:
+	case ADM8211_AL2210L:
+		priv->transceiver_type = priv->eeprom->specific_rftype;
+		break;
+
+	default:
+		if (priv->pdev->revision == ADM8211_REV_BA)
+			priv->transceiver_type = ADM8211_RFMD2958_RF3000_CONTROL_POWER;
+		else if (priv->pdev->revision == ADM8211_REV_CA)
+			priv->transceiver_type = ADM8211_AL2210L;
+		else if (priv->pdev->revision == ADM8211_REV_AB)
+			priv->transceiver_type = ADM8211_RFMD2948;
+
+		printk(KERN_WARNING "%s (adm8211): Unknown transceiver: %d\n",
+		       pci_name(priv->pdev), priv->eeprom->specific_rftype);
+
+		break;
+	}
+
+	printk(KERN_DEBUG "%s (adm8211): RFtype=%d BBPtype=%d Specific BBP=%d "
+               "Transceiver=%d\n", pci_name(priv->pdev), priv->rf_type,
+	       priv->bbp_type, priv->specific_bbptype, priv->transceiver_type);
+
+	return 0;
+}
+
+static inline void adm8211_write_sram(struct ieee80211_hw *dev,
+				      u32 addr, u32 data)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	ADM8211_CSR_WRITE(WEPCTL, addr | ADM8211_WEPCTL_TABLE_WR |
+			  (priv->pdev->revision < ADM8211_REV_BA ?
+			   0 : ADM8211_WEPCTL_SEL_WEPTABLE ));
+	ADM8211_CSR_READ(WEPCTL);
+	msleep(1);
+
+	ADM8211_CSR_WRITE(WESK, data);
+	ADM8211_CSR_READ(WESK);
+	msleep(1);
+}
+
+static void adm8211_write_sram_bytes(struct ieee80211_hw *dev,
+				     unsigned int addr, u8 *buf,
+				     unsigned int len)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg = ADM8211_CSR_READ(WEPCTL);
+	unsigned int i;
+
+	if (priv->pdev->revision < ADM8211_REV_BA) {
+		for (i = 0; i < len; i += 2) {
+			u16 val = buf[i] | (buf[i + 1] << 8);
+			adm8211_write_sram(dev, addr + i / 2, val);
+		}
+	} else {
+		for (i = 0; i < len; i += 4) {
+			u32 val = (buf[i + 0] << 0 ) | (buf[i + 1] << 8 ) |
+				  (buf[i + 2] << 16) | (buf[i + 3] << 24);
+			adm8211_write_sram(dev, addr + i / 4, val);
+		}
+	}
+
+	ADM8211_CSR_WRITE(WEPCTL, reg);
+}
+
+static void adm8211_clear_sram(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg = ADM8211_CSR_READ(WEPCTL);
+	unsigned int addr;
+
+	for (addr = 0; addr < ADM8211_SRAM_SIZE; addr++)
+		adm8211_write_sram(dev, addr, 0);
+
+	ADM8211_CSR_WRITE(WEPCTL, reg);
+}
+
+static int adm8211_get_stats(struct ieee80211_hw *dev,
+			     struct ieee80211_low_level_stats *stats)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	memcpy(stats, &priv->stats, sizeof(*stats));
+
+	return 0;
+}
+
+static void adm8211_interrupt_tci(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int dirty_tx;
+
+	spin_lock(&priv->lock);
+
+	for (dirty_tx = priv->dirty_tx; priv->cur_tx - dirty_tx; dirty_tx++) {
+		unsigned int entry = dirty_tx % priv->tx_ring_size;
+		u32 status = le32_to_cpu(priv->tx_ring[entry].status);
+		struct ieee80211_tx_info *txi;
+		struct adm8211_tx_ring_info *info;
+		struct sk_buff *skb;
+
+		if (status & TDES0_CONTROL_OWN ||
+		    !(status & TDES0_CONTROL_DONE))
+			break;
+
+		info = &priv->tx_buffers[entry];
+		skb = info->skb;
+		txi = IEEE80211_SKB_CB(skb);
+
+		/* TODO: check TDES0_STATUS_TUF and TDES0_STATUS_TRO */
+
+		pci_unmap_single(priv->pdev, info->mapping,
+				 info->skb->len, PCI_DMA_TODEVICE);
+
+		ieee80211_tx_info_clear_status(txi);
+
+		skb_pull(skb, sizeof(struct adm8211_tx_hdr));
+		memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen);
+		if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) &&
+		    !(status & TDES0_STATUS_ES))
+			txi->flags |= IEEE80211_TX_STAT_ACK;
+
+		ieee80211_tx_status_irqsafe(dev, skb);
+
+		info->skb = NULL;
+	}
+
+	if (priv->cur_tx - dirty_tx < priv->tx_ring_size - 2)
+		ieee80211_wake_queue(dev, 0);
+
+	priv->dirty_tx = dirty_tx;
+	spin_unlock(&priv->lock);
+}
+
+
+static void adm8211_interrupt_rci(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int entry = priv->cur_rx % priv->rx_ring_size;
+	u32 status;
+	unsigned int pktlen;
+	struct sk_buff *skb, *newskb;
+	unsigned int limit = priv->rx_ring_size;
+	u8 rssi, rate;
+
+	while (!(priv->rx_ring[entry].status & cpu_to_le32(RDES0_STATUS_OWN))) {
+		if (!limit--)
+			break;
+
+		status = le32_to_cpu(priv->rx_ring[entry].status);
+		rate = (status & RDES0_STATUS_RXDR) >> 12;
+		rssi = le32_to_cpu(priv->rx_ring[entry].length) &
+			RDES1_STATUS_RSSI;
+
+		pktlen = status & RDES0_STATUS_FL;
+		if (pktlen > RX_PKT_SIZE) {
+			if (net_ratelimit())
+				wiphy_debug(dev->wiphy, "frame too long (%d)\n",
+					    pktlen);
+			pktlen = RX_PKT_SIZE;
+		}
+
+		if (!priv->soft_rx_crc && status & RDES0_STATUS_ES) {
+			skb = NULL; /* old buffer will be reused */
+			/* TODO: update RX error stats */
+			/* TODO: check RDES0_STATUS_CRC*E */
+		} else if (pktlen < RX_COPY_BREAK) {
+			skb = dev_alloc_skb(pktlen);
+			if (skb) {
+				pci_dma_sync_single_for_cpu(
+					priv->pdev,
+					priv->rx_buffers[entry].mapping,
+					pktlen, PCI_DMA_FROMDEVICE);
+				memcpy(skb_put(skb, pktlen),
+				       skb_tail_pointer(priv->rx_buffers[entry].skb),
+				       pktlen);
+				pci_dma_sync_single_for_device(
+					priv->pdev,
+					priv->rx_buffers[entry].mapping,
+					RX_PKT_SIZE, PCI_DMA_FROMDEVICE);
+			}
+		} else {
+			newskb = dev_alloc_skb(RX_PKT_SIZE);
+			if (newskb) {
+				skb = priv->rx_buffers[entry].skb;
+				skb_put(skb, pktlen);
+				pci_unmap_single(
+					priv->pdev,
+					priv->rx_buffers[entry].mapping,
+					RX_PKT_SIZE, PCI_DMA_FROMDEVICE);
+				priv->rx_buffers[entry].skb = newskb;
+				priv->rx_buffers[entry].mapping =
+					pci_map_single(priv->pdev,
+						       skb_tail_pointer(newskb),
+						       RX_PKT_SIZE,
+						       PCI_DMA_FROMDEVICE);
+			} else {
+				skb = NULL;
+				/* TODO: update rx dropped stats */
+			}
+
+			priv->rx_ring[entry].buffer1 =
+				cpu_to_le32(priv->rx_buffers[entry].mapping);
+		}
+
+		priv->rx_ring[entry].status = cpu_to_le32(RDES0_STATUS_OWN |
+							  RDES0_STATUS_SQL);
+		priv->rx_ring[entry].length =
+			cpu_to_le32(RX_PKT_SIZE |
+				    (entry == priv->rx_ring_size - 1 ?
+				     RDES1_CONTROL_RER : 0));
+
+		if (skb) {
+			struct ieee80211_rx_status rx_status = {0};
+
+			if (priv->pdev->revision < ADM8211_REV_CA)
+				rx_status.signal = rssi;
+			else
+				rx_status.signal = 100 - rssi;
+
+			rx_status.rate_idx = rate;
+
+			rx_status.freq = adm8211_channels[priv->channel - 1].center_freq;
+			rx_status.band = IEEE80211_BAND_2GHZ;
+
+			memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
+			ieee80211_rx_irqsafe(dev, skb);
+		}
+
+		entry = (++priv->cur_rx) % priv->rx_ring_size;
+	}
+
+	/* TODO: check LPC and update stats? */
+}
+
+
+static irqreturn_t adm8211_interrupt(int irq, void *dev_id)
+{
+#define ADM8211_INT(x)						\
+do {								\
+	if (unlikely(stsr & ADM8211_STSR_ ## x))		\
+		wiphy_debug(dev->wiphy, "%s\n", #x);		\
+} while (0)
+
+	struct ieee80211_hw *dev = dev_id;
+	struct adm8211_priv *priv = dev->priv;
+	u32 stsr = ADM8211_CSR_READ(STSR);
+	ADM8211_CSR_WRITE(STSR, stsr);
+	if (stsr == 0xffffffff)
+		return IRQ_HANDLED;
+
+	if (!(stsr & (ADM8211_STSR_NISS | ADM8211_STSR_AISS)))
+		return IRQ_HANDLED;
+
+	if (stsr & ADM8211_STSR_RCI)
+		adm8211_interrupt_rci(dev);
+	if (stsr & ADM8211_STSR_TCI)
+		adm8211_interrupt_tci(dev);
+
+	ADM8211_INT(PCF);
+	ADM8211_INT(BCNTC);
+	ADM8211_INT(GPINT);
+	ADM8211_INT(ATIMTC);
+	ADM8211_INT(TSFTF);
+	ADM8211_INT(TSCZ);
+	ADM8211_INT(SQL);
+	ADM8211_INT(WEPTD);
+	ADM8211_INT(ATIME);
+	ADM8211_INT(TEIS);
+	ADM8211_INT(FBE);
+	ADM8211_INT(REIS);
+	ADM8211_INT(GPTT);
+	ADM8211_INT(RPS);
+	ADM8211_INT(RDU);
+	ADM8211_INT(TUF);
+	ADM8211_INT(TPS);
+
+	return IRQ_HANDLED;
+
+#undef ADM8211_INT
+}
+
+#define WRITE_SYN(name,v_mask,v_shift,a_mask,a_shift,bits,prewrite,postwrite)\
+static void adm8211_rf_write_syn_ ## name (struct ieee80211_hw *dev,	     \
+					   u16 addr, u32 value) {	     \
+	struct adm8211_priv *priv = dev->priv;				     \
+	unsigned int i;							     \
+	u32 reg, bitbuf;						     \
+									     \
+	value &= v_mask;						     \
+	addr &= a_mask;							     \
+	bitbuf = (value << v_shift) | (addr << a_shift);		     \
+									     \
+	ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_IF_SELECT_1);		     \
+	ADM8211_CSR_READ(SYNRF);					     \
+	ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_IF_SELECT_0);		     \
+	ADM8211_CSR_READ(SYNRF);					     \
+									     \
+	if (prewrite) {							     \
+		ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_WRITE_SYNDATA_0);     \
+		ADM8211_CSR_READ(SYNRF);				     \
+	}								     \
+									     \
+	for (i = 0; i <= bits; i++) {					     \
+		if (bitbuf & (1 << (bits - i)))				     \
+			reg = ADM8211_SYNRF_WRITE_SYNDATA_1;		     \
+		else							     \
+			reg = ADM8211_SYNRF_WRITE_SYNDATA_0;		     \
+									     \
+		ADM8211_CSR_WRITE(SYNRF, reg);				     \
+		ADM8211_CSR_READ(SYNRF);				     \
+									     \
+		ADM8211_CSR_WRITE(SYNRF, reg | ADM8211_SYNRF_WRITE_CLOCK_1); \
+		ADM8211_CSR_READ(SYNRF);				     \
+		ADM8211_CSR_WRITE(SYNRF, reg | ADM8211_SYNRF_WRITE_CLOCK_0); \
+		ADM8211_CSR_READ(SYNRF);				     \
+	}								     \
+									     \
+	if (postwrite == 1) {						     \
+		ADM8211_CSR_WRITE(SYNRF, reg | ADM8211_SYNRF_IF_SELECT_0);   \
+		ADM8211_CSR_READ(SYNRF);				     \
+	}								     \
+	if (postwrite == 2) {						     \
+		ADM8211_CSR_WRITE(SYNRF, reg | ADM8211_SYNRF_IF_SELECT_1);   \
+		ADM8211_CSR_READ(SYNRF);				     \
+	}								     \
+									     \
+	ADM8211_CSR_WRITE(SYNRF, 0);					     \
+	ADM8211_CSR_READ(SYNRF);					     \
+}
+
+WRITE_SYN(max2820,  0x00FFF, 0, 0x0F, 12, 15, 1, 1)
+WRITE_SYN(al2210l,  0xFFFFF, 4, 0x0F,  0, 23, 1, 1)
+WRITE_SYN(rfmd2958, 0x3FFFF, 0, 0x1F, 18, 23, 0, 1)
+WRITE_SYN(rfmd2948, 0x0FFFF, 4, 0x0F,  0, 21, 0, 2)
+
+#undef WRITE_SYN
+
+static int adm8211_write_bbp(struct ieee80211_hw *dev, u8 addr, u8 data)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int timeout;
+	u32 reg;
+
+	timeout = 10;
+	while (timeout > 0) {
+		reg = ADM8211_CSR_READ(BBPCTL);
+		if (!(reg & (ADM8211_BBPCTL_WR | ADM8211_BBPCTL_RD)))
+			break;
+		timeout--;
+		msleep(2);
+	}
+
+	if (timeout == 0) {
+		wiphy_debug(dev->wiphy,
+			    "adm8211_write_bbp(%d,%d) failed prewrite (reg=0x%08x)\n",
+			    addr, data, reg);
+		return -ETIMEDOUT;
+	}
+
+	switch (priv->bbp_type) {
+	case ADM8211_TYPE_INTERSIL:
+		reg = ADM8211_BBPCTL_MMISEL;	/* three wire interface */
+		break;
+	case ADM8211_TYPE_RFMD:
+		reg = (0x20 << 24) | ADM8211_BBPCTL_TXCE | ADM8211_BBPCTL_CCAP |
+		      (0x01 << 18);
+		break;
+	case ADM8211_TYPE_ADMTEK:
+		reg = (0x20 << 24) | ADM8211_BBPCTL_TXCE | ADM8211_BBPCTL_CCAP |
+		      (0x05 << 18);
+		break;
+	}
+	reg |= ADM8211_BBPCTL_WR | (addr << 8) | data;
+
+	ADM8211_CSR_WRITE(BBPCTL, reg);
+
+	timeout = 10;
+	while (timeout > 0) {
+		reg = ADM8211_CSR_READ(BBPCTL);
+		if (!(reg & ADM8211_BBPCTL_WR))
+			break;
+		timeout--;
+		msleep(2);
+	}
+
+	if (timeout == 0) {
+		ADM8211_CSR_WRITE(BBPCTL, ADM8211_CSR_READ(BBPCTL) &
+				  ~ADM8211_BBPCTL_WR);
+		wiphy_debug(dev->wiphy,
+			    "adm8211_write_bbp(%d,%d) failed postwrite (reg=0x%08x)\n",
+			    addr, data, reg);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int adm8211_rf_set_channel(struct ieee80211_hw *dev, unsigned int chan)
+{
+	static const u32 adm8211_rfmd2958_reg5[] =
+		{0x22BD, 0x22D2, 0x22E8, 0x22FE, 0x2314, 0x232A, 0x2340,
+		 0x2355, 0x236B, 0x2381, 0x2397, 0x23AD, 0x23C2, 0x23F7};
+	static const u32 adm8211_rfmd2958_reg6[] =
+		{0x05D17, 0x3A2E8, 0x2E8BA, 0x22E8B, 0x1745D, 0x0BA2E, 0x00000,
+		 0x345D1, 0x28BA2, 0x1D174, 0x11745, 0x05D17, 0x3A2E8, 0x11745};
+
+	struct adm8211_priv *priv = dev->priv;
+	u8 ant_power = priv->ant_power > 0x3F ?
+		priv->eeprom->antenna_power[chan - 1] : priv->ant_power;
+	u8 tx_power = priv->tx_power > 0x3F ?
+		priv->eeprom->tx_power[chan - 1] : priv->tx_power;
+	u8 lpf_cutoff = priv->lpf_cutoff == 0xFF ?
+		priv->eeprom->lpf_cutoff[chan - 1] : priv->lpf_cutoff;
+	u8 lnags_thresh = priv->lnags_threshold == 0xFF ?
+		priv->eeprom->lnags_threshold[chan - 1] : priv->lnags_threshold;
+	u32 reg;
+
+	ADM8211_IDLE();
+
+	/* Program synthesizer to new channel */
+	switch (priv->transceiver_type) {
+	case ADM8211_RFMD2958:
+	case ADM8211_RFMD2958_RF3000_CONTROL_POWER:
+		adm8211_rf_write_syn_rfmd2958(dev, 0x00, 0x04007);
+		adm8211_rf_write_syn_rfmd2958(dev, 0x02, 0x00033);
+
+		adm8211_rf_write_syn_rfmd2958(dev, 0x05,
+			adm8211_rfmd2958_reg5[chan - 1]);
+		adm8211_rf_write_syn_rfmd2958(dev, 0x06,
+			adm8211_rfmd2958_reg6[chan - 1]);
+		break;
+
+	case ADM8211_RFMD2948:
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_MAIN_CONF,
+					      SI4126_MAIN_XINDIV2);
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_POWERDOWN,
+					      SI4126_POWERDOWN_PDIB |
+					      SI4126_POWERDOWN_PDRB);
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_PHASE_DET_GAIN, 0);
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_RF2_N_DIV,
+					      (chan == 14 ?
+					       2110 : (2033 + (chan * 5))));
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_IF_N_DIV, 1496);
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_RF2_R_DIV, 44);
+		adm8211_rf_write_syn_rfmd2948(dev, SI4126_IF_R_DIV, 44);
+		break;
+
+	case ADM8211_MAX2820:
+		adm8211_rf_write_syn_max2820(dev, 0x3,
+			(chan == 14 ? 0x054 : (0x7 + (chan * 5))));
+		break;
+
+	case ADM8211_AL2210L:
+		adm8211_rf_write_syn_al2210l(dev, 0x0,
+			(chan == 14 ? 0x229B4 : (0x22967 + (chan * 5))));
+		break;
+
+	default:
+		wiphy_debug(dev->wiphy, "unsupported transceiver type %d\n",
+			    priv->transceiver_type);
+		break;
+	}
+
+	/* write BBP regs */
+	if (priv->bbp_type == ADM8211_TYPE_RFMD) {
+
+	/* SMC 2635W specific? adm8211b doesn't use the 2948 though.. */
+	/* TODO: remove if SMC 2635W doesn't need this */
+	if (priv->transceiver_type == ADM8211_RFMD2948) {
+		reg = ADM8211_CSR_READ(GPIO);
+		reg &= 0xfffc0000;
+		reg |= ADM8211_CSR_GPIO_EN0;
+		if (chan != 14)
+			reg |= ADM8211_CSR_GPIO_O0;
+		ADM8211_CSR_WRITE(GPIO, reg);
+	}
+
+	if (priv->transceiver_type == ADM8211_RFMD2958) {
+		/* set PCNT2 */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x0B, 0x07100);
+		/* set PCNT1 P_DESIRED/MID_BIAS */
+		reg = le16_to_cpu(priv->eeprom->cr49);
+		reg >>= 13;
+		reg <<= 15;
+		reg |= ant_power << 9;
+		adm8211_rf_write_syn_rfmd2958(dev, 0x0A, reg);
+		/* set TXRX TX_GAIN */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x09, 0x00050 |
+			(priv->pdev->revision < ADM8211_REV_CA ? tx_power : 0));
+	} else {
+		reg = ADM8211_CSR_READ(PLCPHD);
+		reg &= 0xff00ffff;
+		reg |= tx_power << 18;
+		ADM8211_CSR_WRITE(PLCPHD, reg);
+	}
+
+	ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_SELRF |
+			  ADM8211_SYNRF_PE1 | ADM8211_SYNRF_PHYRST);
+	ADM8211_CSR_READ(SYNRF);
+	msleep(30);
+
+	/* RF3000 BBP */
+	if (priv->transceiver_type != ADM8211_RFMD2958)
+		adm8211_write_bbp(dev, RF3000_TX_VAR_GAIN__TX_LEN_EXT,
+				  tx_power<<2);
+	adm8211_write_bbp(dev, RF3000_LOW_GAIN_CALIB, lpf_cutoff);
+	adm8211_write_bbp(dev, RF3000_HIGH_GAIN_CALIB, lnags_thresh);
+	adm8211_write_bbp(dev, 0x1c, priv->pdev->revision == ADM8211_REV_BA ?
+				     priv->eeprom->cr28 : 0);
+	adm8211_write_bbp(dev, 0x1d, priv->eeprom->cr29);
+
+	ADM8211_CSR_WRITE(SYNRF, 0);
+
+	/* Nothing to do for ADMtek BBP */
+	} else if (priv->bbp_type != ADM8211_TYPE_ADMTEK)
+		wiphy_debug(dev->wiphy, "unsupported BBP type %d\n",
+			    priv->bbp_type);
+
+	ADM8211_RESTORE();
+
+	/* update current channel for adhoc (and maybe AP mode) */
+	reg = ADM8211_CSR_READ(CAP0);
+	reg &= ~0xF;
+	reg |= chan;
+	ADM8211_CSR_WRITE(CAP0, reg);
+
+	return 0;
+}
+
+static void adm8211_update_mode(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	ADM8211_IDLE();
+
+	priv->soft_rx_crc = 0;
+	switch (priv->mode) {
+	case NL80211_IFTYPE_STATION:
+		priv->nar &= ~(ADM8211_NAR_PR | ADM8211_NAR_EA);
+		priv->nar |= ADM8211_NAR_ST | ADM8211_NAR_SR;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		priv->nar &= ~ADM8211_NAR_PR;
+		priv->nar |= ADM8211_NAR_EA | ADM8211_NAR_ST | ADM8211_NAR_SR;
+
+		/* don't trust the error bits on rev 0x20 and up in adhoc */
+		if (priv->pdev->revision >= ADM8211_REV_BA)
+			priv->soft_rx_crc = 1;
+		break;
+	case NL80211_IFTYPE_MONITOR:
+		priv->nar &= ~(ADM8211_NAR_EA | ADM8211_NAR_ST);
+		priv->nar |= ADM8211_NAR_PR | ADM8211_NAR_SR;
+		break;
+	}
+
+	ADM8211_RESTORE();
+}
+
+static void adm8211_hw_init_syn(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	switch (priv->transceiver_type) {
+	case ADM8211_RFMD2958:
+	case ADM8211_RFMD2958_RF3000_CONTROL_POWER:
+		/* comments taken from ADMtek vendor driver */
+
+		/* Reset RF2958 after power on */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x1F, 0x00000);
+		/* Initialize RF VCO Core Bias to maximum */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x0C, 0x3001F);
+		/* Initialize IF PLL */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x01, 0x29C03);
+		/* Initialize IF PLL Coarse Tuning */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x03, 0x1FF6F);
+		/* Initialize RF PLL */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x04, 0x29403);
+		/* Initialize RF PLL Coarse Tuning */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x07, 0x1456F);
+		/* Initialize TX gain and filter BW (R9) */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x09,
+			(priv->transceiver_type == ADM8211_RFMD2958 ?
+			 0x10050 : 0x00050));
+		/* Initialize CAL register */
+		adm8211_rf_write_syn_rfmd2958(dev, 0x08, 0x3FFF8);
+		break;
+
+	case ADM8211_MAX2820:
+		adm8211_rf_write_syn_max2820(dev, 0x1, 0x01E);
+		adm8211_rf_write_syn_max2820(dev, 0x2, 0x001);
+		adm8211_rf_write_syn_max2820(dev, 0x3, 0x054);
+		adm8211_rf_write_syn_max2820(dev, 0x4, 0x310);
+		adm8211_rf_write_syn_max2820(dev, 0x5, 0x000);
+		break;
+
+	case ADM8211_AL2210L:
+		adm8211_rf_write_syn_al2210l(dev, 0x0, 0x0196C);
+		adm8211_rf_write_syn_al2210l(dev, 0x1, 0x007CB);
+		adm8211_rf_write_syn_al2210l(dev, 0x2, 0x3582F);
+		adm8211_rf_write_syn_al2210l(dev, 0x3, 0x010A9);
+		adm8211_rf_write_syn_al2210l(dev, 0x4, 0x77280);
+		adm8211_rf_write_syn_al2210l(dev, 0x5, 0x45641);
+		adm8211_rf_write_syn_al2210l(dev, 0x6, 0xEA130);
+		adm8211_rf_write_syn_al2210l(dev, 0x7, 0x80000);
+		adm8211_rf_write_syn_al2210l(dev, 0x8, 0x7850F);
+		adm8211_rf_write_syn_al2210l(dev, 0x9, 0xF900C);
+		adm8211_rf_write_syn_al2210l(dev, 0xA, 0x00000);
+		adm8211_rf_write_syn_al2210l(dev, 0xB, 0x00000);
+		break;
+
+	case ADM8211_RFMD2948:
+	default:
+		break;
+	}
+}
+
+static int adm8211_hw_init_bbp(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg;
+
+	/* write addresses */
+	if (priv->bbp_type == ADM8211_TYPE_INTERSIL) {
+		ADM8211_CSR_WRITE(MMIWA,  0x100E0C0A);
+		ADM8211_CSR_WRITE(MMIRD0, 0x00007C7E);
+		ADM8211_CSR_WRITE(MMIRD1, 0x00100000);
+	} else if (priv->bbp_type == ADM8211_TYPE_RFMD ||
+		   priv->bbp_type == ADM8211_TYPE_ADMTEK) {
+		/* check specific BBP type */
+		switch (priv->specific_bbptype) {
+		case ADM8211_BBP_RFMD3000:
+		case ADM8211_BBP_RFMD3002:
+			ADM8211_CSR_WRITE(MMIWA,  0x00009101);
+			ADM8211_CSR_WRITE(MMIRD0, 0x00000301);
+			break;
+
+		case ADM8211_BBP_ADM8011:
+			ADM8211_CSR_WRITE(MMIWA,  0x00008903);
+			ADM8211_CSR_WRITE(MMIRD0, 0x00001716);
+
+			reg = ADM8211_CSR_READ(BBPCTL);
+			reg &= ~ADM8211_BBPCTL_TYPE;
+			reg |= 0x5 << 18;
+			ADM8211_CSR_WRITE(BBPCTL, reg);
+			break;
+		}
+
+		switch (priv->pdev->revision) {
+		case ADM8211_REV_CA:
+			if (priv->transceiver_type == ADM8211_RFMD2958 ||
+			    priv->transceiver_type == ADM8211_RFMD2958_RF3000_CONTROL_POWER ||
+			    priv->transceiver_type == ADM8211_RFMD2948)
+				ADM8211_CSR_WRITE(SYNCTL, 0x1 << 22);
+			else if (priv->transceiver_type == ADM8211_MAX2820 ||
+				 priv->transceiver_type == ADM8211_AL2210L)
+				ADM8211_CSR_WRITE(SYNCTL, 0x3 << 22);
+			break;
+
+		case ADM8211_REV_BA:
+			reg  = ADM8211_CSR_READ(MMIRD1);
+			reg &= 0x0000FFFF;
+			reg |= 0x7e100000;
+			ADM8211_CSR_WRITE(MMIRD1, reg);
+			break;
+
+		case ADM8211_REV_AB:
+		case ADM8211_REV_AF:
+		default:
+			ADM8211_CSR_WRITE(MMIRD1, 0x7e100000);
+			break;
+		}
+
+		/* For RFMD */
+		ADM8211_CSR_WRITE(MACTEST, 0x800);
+	}
+
+	adm8211_hw_init_syn(dev);
+
+	/* Set RF Power control IF pin to PE1+PHYRST# */
+	ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_SELRF |
+			  ADM8211_SYNRF_PE1 | ADM8211_SYNRF_PHYRST);
+	ADM8211_CSR_READ(SYNRF);
+	msleep(20);
+
+	/* write BBP regs */
+	if (priv->bbp_type == ADM8211_TYPE_RFMD) {
+		/* RF3000 BBP */
+		/* another set:
+		 * 11: c8
+		 * 14: 14
+		 * 15: 50 (chan 1..13; chan 14: d0)
+		 * 1c: 00
+		 * 1d: 84
+		 */
+		adm8211_write_bbp(dev, RF3000_CCA_CTRL, 0x80);
+		/* antenna selection: diversity */
+		adm8211_write_bbp(dev, RF3000_DIVERSITY__RSSI, 0x80);
+		adm8211_write_bbp(dev, RF3000_TX_VAR_GAIN__TX_LEN_EXT, 0x74);
+		adm8211_write_bbp(dev, RF3000_LOW_GAIN_CALIB, 0x38);
+		adm8211_write_bbp(dev, RF3000_HIGH_GAIN_CALIB, 0x40);
+
+		if (priv->eeprom->major_version < 2) {
+			adm8211_write_bbp(dev, 0x1c, 0x00);
+			adm8211_write_bbp(dev, 0x1d, 0x80);
+		} else {
+			if (priv->pdev->revision == ADM8211_REV_BA)
+				adm8211_write_bbp(dev, 0x1c, priv->eeprom->cr28);
+			else
+				adm8211_write_bbp(dev, 0x1c, 0x00);
+
+			adm8211_write_bbp(dev, 0x1d, priv->eeprom->cr29);
+		}
+	} else if (priv->bbp_type == ADM8211_TYPE_ADMTEK) {
+		/* reset baseband */
+		adm8211_write_bbp(dev, 0x00, 0xFF);
+		/* antenna selection: diversity */
+		adm8211_write_bbp(dev, 0x07, 0x0A);
+
+		/* TODO: find documentation for this */
+		switch (priv->transceiver_type) {
+		case ADM8211_RFMD2958:
+		case ADM8211_RFMD2958_RF3000_CONTROL_POWER:
+			adm8211_write_bbp(dev, 0x00, 0x00);
+			adm8211_write_bbp(dev, 0x01, 0x00);
+			adm8211_write_bbp(dev, 0x02, 0x00);
+			adm8211_write_bbp(dev, 0x03, 0x00);
+			adm8211_write_bbp(dev, 0x06, 0x0f);
+			adm8211_write_bbp(dev, 0x09, 0x00);
+			adm8211_write_bbp(dev, 0x0a, 0x00);
+			adm8211_write_bbp(dev, 0x0b, 0x00);
+			adm8211_write_bbp(dev, 0x0c, 0x00);
+			adm8211_write_bbp(dev, 0x0f, 0xAA);
+			adm8211_write_bbp(dev, 0x10, 0x8c);
+			adm8211_write_bbp(dev, 0x11, 0x43);
+			adm8211_write_bbp(dev, 0x18, 0x40);
+			adm8211_write_bbp(dev, 0x20, 0x23);
+			adm8211_write_bbp(dev, 0x21, 0x02);
+			adm8211_write_bbp(dev, 0x22, 0x28);
+			adm8211_write_bbp(dev, 0x23, 0x30);
+			adm8211_write_bbp(dev, 0x24, 0x2d);
+			adm8211_write_bbp(dev, 0x28, 0x35);
+			adm8211_write_bbp(dev, 0x2a, 0x8c);
+			adm8211_write_bbp(dev, 0x2b, 0x81);
+			adm8211_write_bbp(dev, 0x2c, 0x44);
+			adm8211_write_bbp(dev, 0x2d, 0x0A);
+			adm8211_write_bbp(dev, 0x29, 0x40);
+			adm8211_write_bbp(dev, 0x60, 0x08);
+			adm8211_write_bbp(dev, 0x64, 0x01);
+			break;
+
+		case ADM8211_MAX2820:
+			adm8211_write_bbp(dev, 0x00, 0x00);
+			adm8211_write_bbp(dev, 0x01, 0x00);
+			adm8211_write_bbp(dev, 0x02, 0x00);
+			adm8211_write_bbp(dev, 0x03, 0x00);
+			adm8211_write_bbp(dev, 0x06, 0x0f);
+			adm8211_write_bbp(dev, 0x09, 0x05);
+			adm8211_write_bbp(dev, 0x0a, 0x02);
+			adm8211_write_bbp(dev, 0x0b, 0x00);
+			adm8211_write_bbp(dev, 0x0c, 0x0f);
+			adm8211_write_bbp(dev, 0x0f, 0x55);
+			adm8211_write_bbp(dev, 0x10, 0x8d);
+			adm8211_write_bbp(dev, 0x11, 0x43);
+			adm8211_write_bbp(dev, 0x18, 0x4a);
+			adm8211_write_bbp(dev, 0x20, 0x20);
+			adm8211_write_bbp(dev, 0x21, 0x02);
+			adm8211_write_bbp(dev, 0x22, 0x23);
+			adm8211_write_bbp(dev, 0x23, 0x30);
+			adm8211_write_bbp(dev, 0x24, 0x2d);
+			adm8211_write_bbp(dev, 0x2a, 0x8c);
+			adm8211_write_bbp(dev, 0x2b, 0x81);
+			adm8211_write_bbp(dev, 0x2c, 0x44);
+			adm8211_write_bbp(dev, 0x29, 0x4a);
+			adm8211_write_bbp(dev, 0x60, 0x2b);
+			adm8211_write_bbp(dev, 0x64, 0x01);
+			break;
+
+		case ADM8211_AL2210L:
+			adm8211_write_bbp(dev, 0x00, 0x00);
+			adm8211_write_bbp(dev, 0x01, 0x00);
+			adm8211_write_bbp(dev, 0x02, 0x00);
+			adm8211_write_bbp(dev, 0x03, 0x00);
+			adm8211_write_bbp(dev, 0x06, 0x0f);
+			adm8211_write_bbp(dev, 0x07, 0x05);
+			adm8211_write_bbp(dev, 0x08, 0x03);
+			adm8211_write_bbp(dev, 0x09, 0x00);
+			adm8211_write_bbp(dev, 0x0a, 0x00);
+			adm8211_write_bbp(dev, 0x0b, 0x00);
+			adm8211_write_bbp(dev, 0x0c, 0x10);
+			adm8211_write_bbp(dev, 0x0f, 0x55);
+			adm8211_write_bbp(dev, 0x10, 0x8d);
+			adm8211_write_bbp(dev, 0x11, 0x43);
+			adm8211_write_bbp(dev, 0x18, 0x4a);
+			adm8211_write_bbp(dev, 0x20, 0x20);
+			adm8211_write_bbp(dev, 0x21, 0x02);
+			adm8211_write_bbp(dev, 0x22, 0x23);
+			adm8211_write_bbp(dev, 0x23, 0x30);
+			adm8211_write_bbp(dev, 0x24, 0x2d);
+			adm8211_write_bbp(dev, 0x2a, 0xaa);
+			adm8211_write_bbp(dev, 0x2b, 0x81);
+			adm8211_write_bbp(dev, 0x2c, 0x44);
+			adm8211_write_bbp(dev, 0x29, 0xfa);
+			adm8211_write_bbp(dev, 0x60, 0x2d);
+			adm8211_write_bbp(dev, 0x64, 0x01);
+			break;
+
+		case ADM8211_RFMD2948:
+			break;
+
+		default:
+			wiphy_debug(dev->wiphy, "unsupported transceiver %d\n",
+				    priv->transceiver_type);
+			break;
+		}
+	} else
+		wiphy_debug(dev->wiphy, "unsupported BBP %d\n", priv->bbp_type);
+
+	ADM8211_CSR_WRITE(SYNRF, 0);
+
+	/* Set RF CAL control source to MAC control */
+	reg = ADM8211_CSR_READ(SYNCTL);
+	reg |= ADM8211_SYNCTL_SELCAL;
+	ADM8211_CSR_WRITE(SYNCTL, reg);
+
+	return 0;
+}
+
+/* configures hw beacons/probe responses */
+static int adm8211_set_rate(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg;
+	int i = 0;
+	u8 rate_buf[12] = {0};
+
+	/* write supported rates */
+	if (priv->pdev->revision != ADM8211_REV_BA) {
+		rate_buf[0] = ARRAY_SIZE(adm8211_rates);
+		for (i = 0; i < ARRAY_SIZE(adm8211_rates); i++)
+			rate_buf[i + 1] = (adm8211_rates[i].bitrate / 5) | 0x80;
+	} else {
+		/* workaround for rev BA specific bug */
+		rate_buf[0] = 0x04;
+		rate_buf[1] = 0x82;
+		rate_buf[2] = 0x04;
+		rate_buf[3] = 0x0b;
+		rate_buf[4] = 0x16;
+	}
+
+	adm8211_write_sram_bytes(dev, ADM8211_SRAM_SUPP_RATE, rate_buf,
+				 ARRAY_SIZE(adm8211_rates) + 1);
+
+	reg = ADM8211_CSR_READ(PLCPHD) & 0x00FFFFFF; /* keep bits 0-23 */
+	reg |= 1 << 15;	/* short preamble */
+	reg |= 110 << 24;
+	ADM8211_CSR_WRITE(PLCPHD, reg);
+
+	/* MTMLT   = 512 TU (max TX MSDU lifetime)
+	 * BCNTSIG = plcp_signal (beacon, probe resp, and atim TX rate)
+	 * SRTYLIM = 224 (short retry limit, TX header value is default) */
+	ADM8211_CSR_WRITE(TXLMT, (512 << 16) | (110 << 8) | (224 << 0));
+
+	return 0;
+}
+
+static void adm8211_hw_init(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg;
+	u8 cline;
+
+	reg = ADM8211_CSR_READ(PAR);
+	reg |= ADM8211_PAR_MRLE | ADM8211_PAR_MRME;
+	reg &= ~(ADM8211_PAR_BAR | ADM8211_PAR_CAL);
+
+	if (!pci_set_mwi(priv->pdev)) {
+		reg |= 0x1 << 24;
+		pci_read_config_byte(priv->pdev, PCI_CACHE_LINE_SIZE, &cline);
+
+		switch (cline) {
+		case  0x8:
+			reg |= (0x1 << 14);
+			break;
+		case 0x10:
+			reg |= (0x2 << 14);
+			break;
+		case 0x20:
+			reg |= (0x3 << 14);
+			break;
+		default:
+			reg |= (0x0 << 14);
+			break;
+		}
+	}
+
+	ADM8211_CSR_WRITE(PAR, reg);
+
+	reg = ADM8211_CSR_READ(CSR_TEST1);
+	reg &= ~(0xF << 28);
+	reg |= (1 << 28) | (1 << 31);
+	ADM8211_CSR_WRITE(CSR_TEST1, reg);
+
+	/* lose link after 4 lost beacons */
+	reg = (0x04 << 21) | ADM8211_WCSR_TSFTWE | ADM8211_WCSR_LSOE;
+	ADM8211_CSR_WRITE(WCSR, reg);
+
+	/* Disable APM, enable receive FIFO threshold, and set drain receive
+	 * threshold to store-and-forward */
+	reg = ADM8211_CSR_READ(CMDR);
+	reg &= ~(ADM8211_CMDR_APM | ADM8211_CMDR_DRT);
+	reg |= ADM8211_CMDR_RTE | ADM8211_CMDR_DRT_SF;
+	ADM8211_CSR_WRITE(CMDR, reg);
+
+	adm8211_set_rate(dev);
+
+	/* 4-bit values:
+	 * PWR1UP   = 8 * 2 ms
+	 * PWR0PAPE = 8 us or 5 us
+	 * PWR1PAPE = 1 us or 3 us
+	 * PWR0TRSW = 5 us
+	 * PWR1TRSW = 12 us
+	 * PWR0PE2  = 13 us
+	 * PWR1PE2  = 1 us
+	 * PWR0TXPE = 8 or 6 */
+	if (priv->pdev->revision < ADM8211_REV_CA)
+		ADM8211_CSR_WRITE(TOFS2, 0x8815cd18);
+	else
+		ADM8211_CSR_WRITE(TOFS2, 0x8535cd16);
+
+	/* Enable store and forward for transmit */
+	priv->nar = ADM8211_NAR_SF | ADM8211_NAR_PB;
+	ADM8211_CSR_WRITE(NAR, priv->nar);
+
+	/* Reset RF */
+	ADM8211_CSR_WRITE(SYNRF, ADM8211_SYNRF_RADIO);
+	ADM8211_CSR_READ(SYNRF);
+	msleep(10);
+	ADM8211_CSR_WRITE(SYNRF, 0);
+	ADM8211_CSR_READ(SYNRF);
+	msleep(5);
+
+	/* Set CFP Max Duration to 0x10 TU */
+	reg = ADM8211_CSR_READ(CFPP);
+	reg &= ~(0xffff << 8);
+	reg |= 0x0010 << 8;
+	ADM8211_CSR_WRITE(CFPP, reg);
+
+	/* USCNT = 0x16 (number of system clocks, 22 MHz, in 1us
+	 * TUCNT = 0x3ff - Tu counter 1024 us  */
+	ADM8211_CSR_WRITE(TOFS0, (0x16 << 24) | 0x3ff);
+
+	/* SLOT=20 us, SIFS=110 cycles of 22 MHz (5 us),
+	 * DIFS=50 us, EIFS=100 us */
+	if (priv->pdev->revision < ADM8211_REV_CA)
+		ADM8211_CSR_WRITE(IFST, (20 << 23) | (110 << 15) |
+					(50 << 9)  | 100);
+	else
+		ADM8211_CSR_WRITE(IFST, (20 << 23) | (24 << 15) |
+					(50 << 9)  | 100);
+
+	/* PCNT = 1 (MAC idle time awake/sleep, unit S)
+	 * RMRD = 2346 * 8 + 1 us (max RX duration)  */
+	ADM8211_CSR_WRITE(RMD, (1 << 16) | 18769);
+
+	/* MART=65535 us, MIRT=256 us, TSFTOFST=0 us */
+	ADM8211_CSR_WRITE(RSPT, 0xffffff00);
+
+	/* Initialize BBP (and SYN) */
+	adm8211_hw_init_bbp(dev);
+
+	/* make sure interrupts are off */
+	ADM8211_CSR_WRITE(IER, 0);
+
+	/* ACK interrupts */
+	ADM8211_CSR_WRITE(STSR, ADM8211_CSR_READ(STSR));
+
+	/* Setup WEP (turns it off for now) */
+	reg = ADM8211_CSR_READ(MACTEST);
+	reg &= ~(7 << 20);
+	ADM8211_CSR_WRITE(MACTEST, reg);
+
+	reg = ADM8211_CSR_READ(WEPCTL);
+	reg &= ~ADM8211_WEPCTL_WEPENABLE;
+	reg |= ADM8211_WEPCTL_WEPRXBYP;
+	ADM8211_CSR_WRITE(WEPCTL, reg);
+
+	/* Clear the missed-packet counter. */
+	ADM8211_CSR_READ(LPC);
+}
+
+static int adm8211_hw_reset(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg, tmp;
+	int timeout = 100;
+
+	/* Power-on issue */
+	/* TODO: check if this is necessary */
+	ADM8211_CSR_WRITE(FRCTL, 0);
+
+	/* Reset the chip */
+	tmp = ADM8211_CSR_READ(PAR);
+	ADM8211_CSR_WRITE(PAR, ADM8211_PAR_SWR);
+
+	while ((ADM8211_CSR_READ(PAR) & ADM8211_PAR_SWR) && timeout--)
+		msleep(50);
+
+	if (timeout <= 0)
+		return -ETIMEDOUT;
+
+	ADM8211_CSR_WRITE(PAR, tmp);
+
+	if (priv->pdev->revision == ADM8211_REV_BA &&
+	    (priv->transceiver_type == ADM8211_RFMD2958_RF3000_CONTROL_POWER ||
+	     priv->transceiver_type == ADM8211_RFMD2958)) {
+		reg = ADM8211_CSR_READ(CSR_TEST1);
+		reg |= (1 << 4) | (1 << 5);
+		ADM8211_CSR_WRITE(CSR_TEST1, reg);
+	} else if (priv->pdev->revision == ADM8211_REV_CA) {
+		reg = ADM8211_CSR_READ(CSR_TEST1);
+		reg &= ~((1 << 4) | (1 << 5));
+		ADM8211_CSR_WRITE(CSR_TEST1, reg);
+	}
+
+	ADM8211_CSR_WRITE(FRCTL, 0);
+
+	reg = ADM8211_CSR_READ(CSR_TEST0);
+	reg |= ADM8211_CSR_TEST0_EPRLD;	/* EEPROM Recall */
+	ADM8211_CSR_WRITE(CSR_TEST0, reg);
+
+	adm8211_clear_sram(dev);
+
+	return 0;
+}
+
+static u64 adm8211_get_tsft(struct ieee80211_hw *dev,
+			    struct ieee80211_vif *vif)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 tsftl;
+	u64 tsft;
+
+	tsftl = ADM8211_CSR_READ(TSFTL);
+	tsft = ADM8211_CSR_READ(TSFTH);
+	tsft <<= 32;
+	tsft |= tsftl;
+
+	return tsft;
+}
+
+static void adm8211_set_interval(struct ieee80211_hw *dev,
+				 unsigned short bi, unsigned short li)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg;
+
+	/* BP (beacon interval) = data->beacon_interval
+	 * LI (listen interval) = data->listen_interval (in beacon intervals) */
+	reg = (bi << 16) | li;
+	ADM8211_CSR_WRITE(BPLI, reg);
+}
+
+static void adm8211_set_bssid(struct ieee80211_hw *dev, const u8 *bssid)
+{
+	struct adm8211_priv *priv = dev->priv;
+	u32 reg;
+
+	ADM8211_CSR_WRITE(BSSID0, le32_to_cpu(*(__le32 *)bssid));
+	reg = ADM8211_CSR_READ(ABDA1);
+	reg &= 0x0000ffff;
+	reg |= (bssid[4] << 16) | (bssid[5] << 24);
+	ADM8211_CSR_WRITE(ABDA1, reg);
+}
+
+static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
+{
+	struct adm8211_priv *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
+	int channel =
+		ieee80211_frequency_to_channel(conf->chandef.chan->center_freq);
+
+	if (channel != priv->channel) {
+		priv->channel = channel;
+		adm8211_rf_set_channel(dev, priv->channel);
+	}
+
+	return 0;
+}
+
+static void adm8211_bss_info_changed(struct ieee80211_hw *dev,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_bss_conf *conf,
+				     u32 changes)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	if (!(changes & BSS_CHANGED_BSSID))
+		return;
+
+	if (!ether_addr_equal(conf->bssid, priv->bssid)) {
+		adm8211_set_bssid(dev, conf->bssid);
+		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+	}
+}
+
+static u64 adm8211_prepare_multicast(struct ieee80211_hw *hw,
+				     struct netdev_hw_addr_list *mc_list)
+{
+	unsigned int bit_nr;
+	u32 mc_filter[2];
+	struct netdev_hw_addr *ha;
+
+	mc_filter[1] = mc_filter[0] = 0;
+
+	netdev_hw_addr_list_for_each(ha, mc_list) {
+		bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+		bit_nr &= 0x3F;
+		mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+	}
+
+	return mc_filter[0] | ((u64)(mc_filter[1]) << 32);
+}
+
+static void adm8211_configure_filter(struct ieee80211_hw *dev,
+				     unsigned int changed_flags,
+				     unsigned int *total_flags,
+				     u64 multicast)
+{
+	static const u8 bcast[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int new_flags;
+	u32 mc_filter[2];
+
+	mc_filter[0] = multicast;
+	mc_filter[1] = multicast >> 32;
+
+	new_flags = 0;
+
+	if (*total_flags & FIF_ALLMULTI || multicast == ~(0ULL)) {
+		new_flags |= FIF_ALLMULTI;
+		priv->nar &= ~ADM8211_NAR_PR;
+		priv->nar |= ADM8211_NAR_MM;
+		mc_filter[1] = mc_filter[0] = ~0;
+	} else {
+		priv->nar &= ~(ADM8211_NAR_MM | ADM8211_NAR_PR);
+	}
+
+	ADM8211_IDLE_RX();
+
+	ADM8211_CSR_WRITE(MAR0, mc_filter[0]);
+	ADM8211_CSR_WRITE(MAR1, mc_filter[1]);
+	ADM8211_CSR_READ(NAR);
+
+	if (priv->nar & ADM8211_NAR_PR)
+		ieee80211_hw_set(dev, RX_INCLUDES_FCS);
+	else
+		__clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, dev->flags);
+
+	if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
+		adm8211_set_bssid(dev, bcast);
+	else
+		adm8211_set_bssid(dev, priv->bssid);
+
+	ADM8211_RESTORE();
+
+	*total_flags = new_flags;
+}
+
+static int adm8211_add_interface(struct ieee80211_hw *dev,
+				 struct ieee80211_vif *vif)
+{
+	struct adm8211_priv *priv = dev->priv;
+	if (priv->mode != NL80211_IFTYPE_MONITOR)
+		return -EOPNOTSUPP;
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_STATION:
+		priv->mode = vif->type;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	ADM8211_IDLE();
+
+	ADM8211_CSR_WRITE(PAR0, le32_to_cpu(*(__le32 *)vif->addr));
+	ADM8211_CSR_WRITE(PAR1, le16_to_cpu(*(__le16 *)(vif->addr + 4)));
+
+	adm8211_update_mode(dev);
+
+	ADM8211_RESTORE();
+
+	return 0;
+}
+
+static void adm8211_remove_interface(struct ieee80211_hw *dev,
+				     struct ieee80211_vif *vif)
+{
+	struct adm8211_priv *priv = dev->priv;
+	priv->mode = NL80211_IFTYPE_MONITOR;
+}
+
+static int adm8211_init_rings(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	struct adm8211_desc *desc = NULL;
+	struct adm8211_rx_ring_info *rx_info;
+	struct adm8211_tx_ring_info *tx_info;
+	unsigned int i;
+
+	for (i = 0; i < priv->rx_ring_size; i++) {
+		desc = &priv->rx_ring[i];
+		desc->status = 0;
+		desc->length = cpu_to_le32(RX_PKT_SIZE);
+		priv->rx_buffers[i].skb = NULL;
+	}
+	/* Mark the end of RX ring; hw returns to base address after this
+	 * descriptor */
+	desc->length |= cpu_to_le32(RDES1_CONTROL_RER);
+
+	for (i = 0; i < priv->rx_ring_size; i++) {
+		desc = &priv->rx_ring[i];
+		rx_info = &priv->rx_buffers[i];
+
+		rx_info->skb = dev_alloc_skb(RX_PKT_SIZE);
+		if (rx_info->skb == NULL)
+			break;
+		rx_info->mapping = pci_map_single(priv->pdev,
+						  skb_tail_pointer(rx_info->skb),
+						  RX_PKT_SIZE,
+						  PCI_DMA_FROMDEVICE);
+		desc->buffer1 = cpu_to_le32(rx_info->mapping);
+		desc->status = cpu_to_le32(RDES0_STATUS_OWN | RDES0_STATUS_SQL);
+	}
+
+	/* Setup TX ring. TX buffers descriptors will be filled in as needed */
+	for (i = 0; i < priv->tx_ring_size; i++) {
+		desc = &priv->tx_ring[i];
+		tx_info = &priv->tx_buffers[i];
+
+		tx_info->skb = NULL;
+		tx_info->mapping = 0;
+		desc->status = 0;
+	}
+	desc->length = cpu_to_le32(TDES1_CONTROL_TER);
+
+	priv->cur_rx = priv->cur_tx = priv->dirty_tx = 0;
+	ADM8211_CSR_WRITE(RDB, priv->rx_ring_dma);
+	ADM8211_CSR_WRITE(TDBD, priv->tx_ring_dma);
+
+	return 0;
+}
+
+static void adm8211_free_rings(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int i;
+
+	for (i = 0; i < priv->rx_ring_size; i++) {
+		if (!priv->rx_buffers[i].skb)
+			continue;
+
+		pci_unmap_single(
+			priv->pdev,
+			priv->rx_buffers[i].mapping,
+			RX_PKT_SIZE, PCI_DMA_FROMDEVICE);
+
+		dev_kfree_skb(priv->rx_buffers[i].skb);
+	}
+
+	for (i = 0; i < priv->tx_ring_size; i++) {
+		if (!priv->tx_buffers[i].skb)
+			continue;
+
+		pci_unmap_single(priv->pdev,
+				 priv->tx_buffers[i].mapping,
+				 priv->tx_buffers[i].skb->len,
+				 PCI_DMA_TODEVICE);
+
+		dev_kfree_skb(priv->tx_buffers[i].skb);
+	}
+}
+
+static int adm8211_start(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	int retval;
+
+	/* Power up MAC and RF chips */
+	retval = adm8211_hw_reset(dev);
+	if (retval) {
+		wiphy_err(dev->wiphy, "hardware reset failed\n");
+		goto fail;
+	}
+
+	retval = adm8211_init_rings(dev);
+	if (retval) {
+		wiphy_err(dev->wiphy, "failed to initialize rings\n");
+		goto fail;
+	}
+
+	/* Init hardware */
+	adm8211_hw_init(dev);
+	adm8211_rf_set_channel(dev, priv->channel);
+
+	retval = request_irq(priv->pdev->irq, adm8211_interrupt,
+			     IRQF_SHARED, "adm8211", dev);
+	if (retval) {
+		wiphy_err(dev->wiphy, "failed to register IRQ handler\n");
+		goto fail;
+	}
+
+	ADM8211_CSR_WRITE(IER, ADM8211_IER_NIE | ADM8211_IER_AIE |
+			       ADM8211_IER_RCIE | ADM8211_IER_TCIE |
+			       ADM8211_IER_TDUIE | ADM8211_IER_GPTIE);
+	priv->mode = NL80211_IFTYPE_MONITOR;
+	adm8211_update_mode(dev);
+	ADM8211_CSR_WRITE(RDR, 0);
+
+	adm8211_set_interval(dev, 100, 10);
+	return 0;
+
+fail:
+	return retval;
+}
+
+static void adm8211_stop(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+
+	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+	priv->nar = 0;
+	ADM8211_CSR_WRITE(NAR, 0);
+	ADM8211_CSR_WRITE(IER, 0);
+	ADM8211_CSR_READ(NAR);
+
+	free_irq(priv->pdev->irq, dev);
+
+	adm8211_free_rings(dev);
+}
+
+static void adm8211_calc_durations(int *dur, int *plcp, size_t payload_len, int len,
+				   int plcp_signal, int short_preamble)
+{
+	/* Alternative calculation from NetBSD: */
+
+/* IEEE 802.11b durations for DSSS PHY in microseconds */
+#define IEEE80211_DUR_DS_LONG_PREAMBLE	144
+#define IEEE80211_DUR_DS_SHORT_PREAMBLE	72
+#define IEEE80211_DUR_DS_FAST_PLCPHDR	24
+#define IEEE80211_DUR_DS_SLOW_PLCPHDR	48
+#define IEEE80211_DUR_DS_SLOW_ACK	112
+#define IEEE80211_DUR_DS_FAST_ACK	56
+#define IEEE80211_DUR_DS_SLOW_CTS	112
+#define IEEE80211_DUR_DS_FAST_CTS	56
+#define IEEE80211_DUR_DS_SLOT		20
+#define IEEE80211_DUR_DS_SIFS		10
+
+	int remainder;
+
+	*dur = (80 * (24 + payload_len) + plcp_signal - 1)
+		/ plcp_signal;
+
+	if (plcp_signal <= PLCP_SIGNAL_2M)
+		/* 1-2Mbps WLAN: send ACK/CTS at 1Mbps */
+		*dur += 3 * (IEEE80211_DUR_DS_SIFS +
+			     IEEE80211_DUR_DS_SHORT_PREAMBLE +
+			     IEEE80211_DUR_DS_FAST_PLCPHDR) +
+			     IEEE80211_DUR_DS_SLOW_CTS + IEEE80211_DUR_DS_SLOW_ACK;
+	else
+		/* 5-11Mbps WLAN: send ACK/CTS at 2Mbps */
+		*dur += 3 * (IEEE80211_DUR_DS_SIFS +
+			     IEEE80211_DUR_DS_SHORT_PREAMBLE +
+			     IEEE80211_DUR_DS_FAST_PLCPHDR) +
+			     IEEE80211_DUR_DS_FAST_CTS + IEEE80211_DUR_DS_FAST_ACK;
+
+	/* lengthen duration if long preamble */
+	if (!short_preamble)
+		*dur +=	3 * (IEEE80211_DUR_DS_LONG_PREAMBLE -
+			     IEEE80211_DUR_DS_SHORT_PREAMBLE) +
+			3 * (IEEE80211_DUR_DS_SLOW_PLCPHDR -
+			     IEEE80211_DUR_DS_FAST_PLCPHDR);
+
+
+	*plcp = (80 * len) / plcp_signal;
+	remainder = (80 * len) % plcp_signal;
+	if (plcp_signal == PLCP_SIGNAL_11M &&
+	    remainder <= 30 && remainder > 0)
+		*plcp = (*plcp | 0x8000) + 1;
+	else if (remainder)
+		(*plcp)++;
+}
+
+/* Transmit skb w/adm8211_tx_hdr (802.11 header created by hardware) */
+static void adm8211_tx_raw(struct ieee80211_hw *dev, struct sk_buff *skb,
+			   u16 plcp_signal,
+			   size_t hdrlen)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned long flags;
+	dma_addr_t mapping;
+	unsigned int entry;
+	u32 flag;
+
+	mapping = pci_map_single(priv->pdev, skb->data, skb->len,
+				 PCI_DMA_TODEVICE);
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	if (priv->cur_tx - priv->dirty_tx == priv->tx_ring_size / 2)
+		flag = TDES1_CONTROL_IC | TDES1_CONTROL_LS | TDES1_CONTROL_FS;
+	else
+		flag = TDES1_CONTROL_LS | TDES1_CONTROL_FS;
+
+	if (priv->cur_tx - priv->dirty_tx == priv->tx_ring_size - 2)
+		ieee80211_stop_queue(dev, 0);
+
+	entry = priv->cur_tx % priv->tx_ring_size;
+
+	priv->tx_buffers[entry].skb = skb;
+	priv->tx_buffers[entry].mapping = mapping;
+	priv->tx_buffers[entry].hdrlen = hdrlen;
+	priv->tx_ring[entry].buffer1 = cpu_to_le32(mapping);
+
+	if (entry == priv->tx_ring_size - 1)
+		flag |= TDES1_CONTROL_TER;
+	priv->tx_ring[entry].length = cpu_to_le32(flag | skb->len);
+
+	/* Set TX rate (SIGNAL field in PLCP PPDU format) */
+	flag = TDES0_CONTROL_OWN | (plcp_signal << 20) | 8 /* ? */;
+	priv->tx_ring[entry].status = cpu_to_le32(flag);
+
+	priv->cur_tx++;
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* Trigger transmit poll */
+	ADM8211_CSR_WRITE(TDR, 0);
+}
+
+/* Put adm8211_tx_hdr on skb and transmit */
+static void adm8211_tx(struct ieee80211_hw *dev,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
+{
+	struct adm8211_tx_hdr *txhdr;
+	size_t payload_len, hdrlen;
+	int plcp, dur, len, plcp_signal, short_preamble;
+	struct ieee80211_hdr *hdr;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_rate *txrate = ieee80211_get_tx_rate(dev, info);
+	u8 rc_flags;
+
+	rc_flags = info->control.rates[0].flags;
+	short_preamble = !!(rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
+	plcp_signal = txrate->bitrate;
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
+	memcpy(skb->cb, skb->data, hdrlen);
+	hdr = (struct ieee80211_hdr *)skb->cb;
+	skb_pull(skb, hdrlen);
+	payload_len = skb->len;
+
+	txhdr = (struct adm8211_tx_hdr *) skb_push(skb, sizeof(*txhdr));
+	memset(txhdr, 0, sizeof(*txhdr));
+	memcpy(txhdr->da, ieee80211_get_DA(hdr), ETH_ALEN);
+	txhdr->signal = plcp_signal;
+	txhdr->frame_body_size = cpu_to_le16(payload_len);
+	txhdr->frame_control = hdr->frame_control;
+
+	len = hdrlen + payload_len + FCS_LEN;
+
+	txhdr->frag = cpu_to_le16(0x0FFF);
+	adm8211_calc_durations(&dur, &plcp, payload_len,
+			       len, plcp_signal, short_preamble);
+	txhdr->plcp_frag_head_len = cpu_to_le16(plcp);
+	txhdr->plcp_frag_tail_len = cpu_to_le16(plcp);
+	txhdr->dur_frag_head = cpu_to_le16(dur);
+	txhdr->dur_frag_tail = cpu_to_le16(dur);
+
+	txhdr->header_control = cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_EXTEND_HEADER);
+
+	if (short_preamble)
+		txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_SHORT_PREAMBLE);
+
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
+		txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_RTS);
+
+	txhdr->retry_limit = info->control.rates[0].count;
+
+	adm8211_tx_raw(dev, skb, plcp_signal, hdrlen);
+}
+
+static int adm8211_alloc_rings(struct ieee80211_hw *dev)
+{
+	struct adm8211_priv *priv = dev->priv;
+	unsigned int ring_size;
+
+	priv->rx_buffers = kmalloc(sizeof(*priv->rx_buffers) * priv->rx_ring_size +
+				   sizeof(*priv->tx_buffers) * priv->tx_ring_size, GFP_KERNEL);
+	if (!priv->rx_buffers)
+		return -ENOMEM;
+
+	priv->tx_buffers = (void *)priv->rx_buffers +
+			   sizeof(*priv->rx_buffers) * priv->rx_ring_size;
+
+	/* Allocate TX/RX descriptors */
+	ring_size = sizeof(struct adm8211_desc) * priv->rx_ring_size +
+		    sizeof(struct adm8211_desc) * priv->tx_ring_size;
+	priv->rx_ring = pci_alloc_consistent(priv->pdev, ring_size,
+					     &priv->rx_ring_dma);
+
+	if (!priv->rx_ring) {
+		kfree(priv->rx_buffers);
+		priv->rx_buffers = NULL;
+		priv->tx_buffers = NULL;
+		return -ENOMEM;
+	}
+
+	priv->tx_ring = priv->rx_ring + priv->rx_ring_size;
+	priv->tx_ring_dma = priv->rx_ring_dma +
+			    sizeof(struct adm8211_desc) * priv->rx_ring_size;
+
+	return 0;
+}
+
+static const struct ieee80211_ops adm8211_ops = {
+	.tx			= adm8211_tx,
+	.start			= adm8211_start,
+	.stop			= adm8211_stop,
+	.add_interface		= adm8211_add_interface,
+	.remove_interface	= adm8211_remove_interface,
+	.config			= adm8211_config,
+	.bss_info_changed	= adm8211_bss_info_changed,
+	.prepare_multicast	= adm8211_prepare_multicast,
+	.configure_filter	= adm8211_configure_filter,
+	.get_stats		= adm8211_get_stats,
+	.get_tsf		= adm8211_get_tsft
+};
+
+static int adm8211_probe(struct pci_dev *pdev,
+				   const struct pci_device_id *id)
+{
+	struct ieee80211_hw *dev;
+	struct adm8211_priv *priv;
+	unsigned long mem_addr, mem_len;
+	unsigned int io_addr, io_len;
+	int err;
+	u32 reg;
+	u8 perm_addr[ETH_ALEN];
+
+	err = pci_enable_device(pdev);
+	if (err) {
+		printk(KERN_ERR "%s (adm8211): Cannot enable new PCI device\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 (io_len < 256 || mem_len < 1024) {
+		printk(KERN_ERR "%s (adm8211): Too short PCI resources\n",
+		       pci_name(pdev));
+		goto err_disable_pdev;
+	}
+
+
+	/* check signature */
+	pci_read_config_dword(pdev, 0x80 /* CR32 */, &reg);
+	if (reg != ADM8211_SIG1 && reg != ADM8211_SIG2) {
+		printk(KERN_ERR "%s (adm8211): Invalid signature (0x%x)\n",
+		       pci_name(pdev), reg);
+		goto err_disable_pdev;
+	}
+
+	err = pci_request_regions(pdev, "adm8211");
+	if (err) {
+		printk(KERN_ERR "%s (adm8211): Cannot obtain PCI resources\n",
+		       pci_name(pdev));
+		return err; /* someone else grabbed it? don't disable it */
+	}
+
+	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
+	    pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+		printk(KERN_ERR "%s (adm8211): No suitable DMA available\n",
+		       pci_name(pdev));
+		goto err_free_reg;
+	}
+
+	pci_set_master(pdev);
+
+	dev = ieee80211_alloc_hw(sizeof(*priv), &adm8211_ops);
+	if (!dev) {
+		printk(KERN_ERR "%s (adm8211): ieee80211 alloc failed\n",
+		       pci_name(pdev));
+		err = -ENOMEM;
+		goto err_free_reg;
+	}
+	priv = dev->priv;
+	priv->pdev = pdev;
+
+	spin_lock_init(&priv->lock);
+
+	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 (adm8211): Cannot map device memory\n",
+		       pci_name(pdev));
+		err = -ENOMEM;
+		goto err_free_dev;
+	}
+
+	priv->rx_ring_size = rx_ring_size;
+	priv->tx_ring_size = tx_ring_size;
+
+	if (adm8211_alloc_rings(dev)) {
+		printk(KERN_ERR "%s (adm8211): Cannot allocate TX/RX ring\n",
+		       pci_name(pdev));
+		goto err_iounmap;
+	}
+
+	*(__le32 *)perm_addr = cpu_to_le32(ADM8211_CSR_READ(PAR0));
+	*(__le16 *)&perm_addr[4] =
+		cpu_to_le16(ADM8211_CSR_READ(PAR1) & 0xFFFF);
+
+	if (!is_valid_ether_addr(perm_addr)) {
+		printk(KERN_WARNING "%s (adm8211): Invalid hwaddr in EEPROM!\n",
+		       pci_name(pdev));
+		eth_random_addr(perm_addr);
+	}
+	SET_IEEE80211_PERM_ADDR(dev, perm_addr);
+
+	dev->extra_tx_headroom = sizeof(struct adm8211_tx_hdr);
+	/* dev->flags = RX_INCLUDES_FCS in promisc mode */
+	ieee80211_hw_set(dev, SIGNAL_UNSPEC);
+	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
+	dev->max_signal = 100;    /* FIXME: find better value */
+
+	dev->queues = 1; /* ADM8211C supports more, maybe ADM8211B too */
+
+	priv->retry_limit = 3;
+	priv->ant_power = 0x40;
+	priv->tx_power = 0x40;
+	priv->lpf_cutoff = 0xFF;
+	priv->lnags_threshold = 0xFF;
+	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+
+	/* Power-on issue. EEPROM won't read correctly without */
+	if (pdev->revision >= ADM8211_REV_BA) {
+		ADM8211_CSR_WRITE(FRCTL, 0);
+		ADM8211_CSR_READ(FRCTL);
+		ADM8211_CSR_WRITE(FRCTL, 1);
+		ADM8211_CSR_READ(FRCTL);
+		msleep(100);
+	}
+
+	err = adm8211_read_eeprom(dev);
+	if (err) {
+		printk(KERN_ERR "%s (adm8211): Can't alloc eeprom buffer\n",
+		       pci_name(pdev));
+		goto err_free_desc;
+	}
+
+	priv->channel = 1;
+
+	dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
+
+	err = ieee80211_register_hw(dev);
+	if (err) {
+		printk(KERN_ERR "%s (adm8211): Cannot register device\n",
+		       pci_name(pdev));
+		goto err_free_eeprom;
+	}
+
+	wiphy_info(dev->wiphy, "hwaddr %pM, Rev 0x%02x\n",
+		   dev->wiphy->perm_addr, pdev->revision);
+
+	return 0;
+
+ err_free_eeprom:
+	kfree(priv->eeprom);
+
+ err_free_desc:
+	pci_free_consistent(pdev,
+			    sizeof(struct adm8211_desc) * priv->rx_ring_size +
+			    sizeof(struct adm8211_desc) * priv->tx_ring_size,
+			    priv->rx_ring, priv->rx_ring_dma);
+	kfree(priv->rx_buffers);
+
+ err_iounmap:
+	pci_iounmap(pdev, priv->map);
+
+ err_free_dev:
+	ieee80211_free_hw(dev);
+
+ err_free_reg:
+	pci_release_regions(pdev);
+
+ err_disable_pdev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+
+static void adm8211_remove(struct pci_dev *pdev)
+{
+	struct ieee80211_hw *dev = pci_get_drvdata(pdev);
+	struct adm8211_priv *priv;
+
+	if (!dev)
+		return;
+
+	ieee80211_unregister_hw(dev);
+
+	priv = dev->priv;
+
+	pci_free_consistent(pdev,
+			    sizeof(struct adm8211_desc) * priv->rx_ring_size +
+			    sizeof(struct adm8211_desc) * priv->tx_ring_size,
+			    priv->rx_ring, priv->rx_ring_dma);
+
+	kfree(priv->rx_buffers);
+	kfree(priv->eeprom);
+	pci_iounmap(pdev, priv->map);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	ieee80211_free_hw(dev);
+}
+
+
+#ifdef CONFIG_PM
+static int adm8211_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 adm8211_resume(struct pci_dev *pdev)
+{
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+
+MODULE_DEVICE_TABLE(pci, adm8211_pci_id_table);
+
+/* TODO: implement enable_wake */
+static struct pci_driver adm8211_driver = {
+	.name		= "adm8211",
+	.id_table	= adm8211_pci_id_table,
+	.probe		= adm8211_probe,
+	.remove		= adm8211_remove,
+#ifdef CONFIG_PM
+	.suspend	= adm8211_suspend,
+	.resume		= adm8211_resume,
+#endif /* CONFIG_PM */
+};
+
+module_pci_driver(adm8211_driver);