linux/drivers/net/wireless/rtl818x/rtl8180_dev.c

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/*
* Linux device driver for RTL8180 / RTL8185
*
* Copyright 2007 Michael Wu <flamingice@sourmilk.net>
* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
*
* Based on the r8180 driver, which is:
* Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
*
* Thanks to Realtek for their support!
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/pci.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/eeprom_93cx6.h>
#include <net/mac80211.h>
#include "rtl8180.h"
#include "rtl8180_rtl8225.h"
#include "rtl8180_sa2400.h"
#include "rtl8180_max2820.h"
#include "rtl8180_grf5101.h"
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
MODULE_LICENSE("GPL");
static DEFINE_PCI_DEVICE_TABLE(rtl8180_table) = {
/* rtl8185 */
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) },
{ PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) },
{ PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) },
/* rtl8180 */
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) },
{ PCI_DEVICE(0x1799, 0x6001) },
{ PCI_DEVICE(0x1799, 0x6020) },
{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) },
{ }
};
MODULE_DEVICE_TABLE(pci, rtl8180_table);
static const struct ieee80211_rate rtl818x_rates[] = {
{ .bitrate = 10, .hw_value = 0, },
{ .bitrate = 20, .hw_value = 1, },
{ .bitrate = 55, .hw_value = 2, },
{ .bitrate = 110, .hw_value = 3, },
{ .bitrate = 60, .hw_value = 4, },
{ .bitrate = 90, .hw_value = 5, },
{ .bitrate = 120, .hw_value = 6, },
{ .bitrate = 180, .hw_value = 7, },
{ .bitrate = 240, .hw_value = 8, },
{ .bitrate = 360, .hw_value = 9, },
{ .bitrate = 480, .hw_value = 10, },
{ .bitrate = 540, .hw_value = 11, },
};
static const struct ieee80211_channel rtl818x_channels[] = {
{ .center_freq = 2412 },
{ .center_freq = 2417 },
{ .center_freq = 2422 },
{ .center_freq = 2427 },
{ .center_freq = 2432 },
{ .center_freq = 2437 },
{ .center_freq = 2442 },
{ .center_freq = 2447 },
{ .center_freq = 2452 },
{ .center_freq = 2457 },
{ .center_freq = 2462 },
{ .center_freq = 2467 },
{ .center_freq = 2472 },
{ .center_freq = 2484 },
};
void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
{
struct rtl8180_priv *priv = dev->priv;
int i = 10;
u32 buf;
buf = (data << 8) | addr;
rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80);
while (i--) {
rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf);
if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
return;
}
}
static void rtl8180_handle_rx(struct ieee80211_hw *dev)
{
struct rtl8180_priv *priv = dev->priv;
unsigned int count = 32;
u8 signal, agc, sq;
while (count--) {
struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
u32 flags = le32_to_cpu(entry->flags);
if (flags & RTL818X_RX_DESC_FLAG_OWN)
return;
if (unlikely(flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
RTL818X_RX_DESC_FLAG_FOF |
RTL818X_RX_DESC_FLAG_RX_ERR)))
goto done;
else {
u32 flags2 = le32_to_cpu(entry->flags2);
struct ieee80211_rx_status rx_status = {0};
struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
if (unlikely(!new_skb))
goto done;
pci_unmap_single(priv->pdev,
*((dma_addr_t *)skb->cb),
MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
skb_put(skb, flags & 0xFFF);
rx_status.antenna = (flags2 >> 15) & 1;
rx_status.rate_idx = (flags >> 20) & 0xF;
agc = (flags2 >> 17) & 0x7F;
if (priv->r8185) {
if (rx_status.rate_idx > 3)
signal = 90 - clamp_t(u8, agc, 25, 90);
else
signal = 95 - clamp_t(u8, agc, 30, 95);
} else {
sq = flags2 & 0xff;
signal = priv->rf->calc_rssi(agc, sq);
}
rx_status.signal = signal;
rx_status.freq = dev->conf.channel->center_freq;
rx_status.band = dev->conf.channel->band;
rx_status.mactime = le64_to_cpu(entry->tsft);
rx_status.flag |= RX_FLAG_TSFT;
if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR)
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(dev, skb);
skb = new_skb;
priv->rx_buf[priv->rx_idx] = skb;
*((dma_addr_t *) skb->cb) =
pci_map_single(priv->pdev, skb_tail_pointer(skb),
MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
}
done:
entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb));
entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
MAX_RX_SIZE);
if (priv->rx_idx == 31)
entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
priv->rx_idx = (priv->rx_idx + 1) % 32;
}
}
static void rtl8180_handle_tx(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;
struct ieee80211_tx_info *info;
u32 flags = le32_to_cpu(entry->flags);
if (flags & RTL818X_TX_DESC_FLAG_OWN)
return;
ring->idx = (ring->idx + 1) % ring->entries;
skb = __skb_dequeue(&ring->queue);
pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
skb->len, PCI_DMA_TODEVICE);
info = IEEE80211_SKB_CB(skb);
ieee80211_tx_info_clear_status(info);
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
(flags & RTL818X_TX_DESC_FLAG_TX_OK))
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.rates[0].count = (flags & 0xFF) + 1;
info->status.rates[1].idx = -1;
ieee80211_tx_status_irqsafe(dev, skb);
if (ring->entries - skb_queue_len(&ring->queue) == 2)
ieee80211_wake_queue(dev, prio);
}
}
static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
{
struct ieee80211_hw *dev = dev_id;
struct rtl8180_priv *priv = dev->priv;
u16 reg;
spin_lock(&priv->lock);
reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
if (unlikely(reg == 0xFFFF)) {
spin_unlock(&priv->lock);
return IRQ_HANDLED;
}
rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR))
rtl8180_handle_tx(dev, 3);
if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR))
rtl8180_handle_tx(dev, 2);
if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
rtl8180_handle_tx(dev, 1);
if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR))
rtl8180_handle_tx(dev, 0);
if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
rtl8180_handle_rx(dev);
spin_unlock(&priv->lock);
return IRQ_HANDLED;
}
static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct rtl8180_priv *priv = dev->priv;
struct rtl8180_tx_ring *ring;
struct rtl8180_tx_desc *entry;
unsigned long flags;
unsigned int idx, prio;
dma_addr_t mapping;
u32 tx_flags;
u8 rc_flags;
u16 plcp_len = 0;
__le16 rts_duration = 0;
prio = skb_get_queue_mapping(skb);
ring = &priv->tx_ring[prio];
mapping = pci_map_single(priv->pdev, skb->data,
skb->len, PCI_DMA_TODEVICE);
tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
RTL818X_TX_DESC_FLAG_LS |
(ieee80211_get_tx_rate(dev, info)->hw_value << 24) |
skb->len;
if (priv->r8185)
tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
RTL818X_TX_DESC_FLAG_NO_ENC;
rc_flags = info->control.rates[0].flags;
if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
}
if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
info);
if (!priv->r8185) {
unsigned int remainder;
plcp_len = DIV_ROUND_UP(16 * (skb->len + 4),
(ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
remainder = (16 * (skb->len + 4)) %
((ieee80211_get_tx_rate(dev, info)->bitrate * 2) / 10);
if (remainder <= 6)
plcp_len |= 1 << 15;
}
spin_lock_irqsave(&priv->lock, flags);
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
priv->seqno += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
}
idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
entry = &ring->desc[idx];
entry->rts_duration = rts_duration;
entry->plcp_len = cpu_to_le16(plcp_len);
entry->tx_buf = cpu_to_le32(mapping);
entry->frame_len = cpu_to_le32(skb->len);
entry->flags2 = info->control.rates[1].idx >= 0 ?
ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
entry->retry_limit = info->control.rates[0].count;
entry->flags = cpu_to_le32(tx_flags);
__skb_queue_tail(&ring->queue, skb);
if (ring->entries - skb_queue_len(&ring->queue) < 2)
ieee80211_stop_queue(dev, prio);
spin_unlock_irqrestore(&priv->lock, flags);
rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));
return 0;
}
void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
{
u8 reg;
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
rtl818x_iowrite8(priv, &priv->map->CONFIG3,
reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
rtl818x_iowrite8(priv, &priv->map->CONFIG3,
reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
}
static int rtl8180_init_hw(struct ieee80211_hw *dev)
{
struct rtl8180_priv *priv = dev->priv;
u16 reg;
rtl818x_iowrite8(priv, &priv->map->CMD, 0);
rtl818x_ioread8(priv, &priv->map->CMD);
msleep(10);
/* reset */
rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
rtl818x_ioread8(priv, &priv->map->CMD);
reg = rtl818x_ioread8(priv, &priv->map->CMD);
reg &= (1 << 1);
reg |= RTL818X_CMD_RESET;
rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
rtl818x_ioread8(priv, &priv->map->CMD);
msleep(200);
/* check success of reset */
if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
wiphy_err(dev->wiphy, "reset timeout!\n");
return -ETIMEDOUT;
}
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
rtl818x_ioread8(priv, &priv->map->CMD);
msleep(200);
if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
/* For cardbus */
reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
reg |= 1 << 1;
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
reg = rtl818x_ioread16(priv, &priv->map->FEMR);
reg |= (1 << 15) | (1 << 14) | (1 << 4);
rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
}
rtl818x_iowrite8(priv, &priv->map->MSR, 0);
if (!priv->r8185)
rtl8180_set_anaparam(priv, priv->anaparam);
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);
/* TODO: necessary? specs indicate not */
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
if (priv->r8185) {
reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
}
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
/* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
/* TODO: turn off hw wep on rtl8180 */
rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
if (priv->r8185) {
rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
/* TODO: set ClkRun enable? necessary? */
reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
} else {
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
}
priv->rf->init(dev);
if (priv->r8185)
rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
return 0;
}
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) {
wiphy_err(dev->wiphy, "Cannot allocate RX ring\n");
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) {
wiphy_err(dev->wiphy, "Cannot allocate TX ring (prio = %d)\n",
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) {
wiphy_err(dev->wiphy, "failed to register IRQ handler\n");
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);
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;
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 u64 rtl8180_get_tsf(struct ieee80211_hw *dev)
{
struct rtl8180_priv *priv = dev->priv;
return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
(u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
}
static void rtl8180_beacon_work(struct work_struct *work)
{
struct rtl8180_vif *vif_priv =
container_of(work, struct rtl8180_vif, beacon_work.work);
struct ieee80211_vif *vif =
container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
struct ieee80211_hw *dev = vif_priv->dev;
struct ieee80211_mgmt *mgmt;
struct sk_buff *skb;
int err = 0;
/* don't overflow the tx ring */
if (ieee80211_queue_stopped(dev, 0))
goto resched;
/* grab a fresh beacon */
skb = ieee80211_beacon_get(dev, vif);
if (!skb)
goto resched;
/*
* update beacon timestamp w/ TSF value
* TODO: make hardware update beacon timestamp
*/
mgmt = (struct ieee80211_mgmt *)skb->data;
mgmt->u.beacon.timestamp = cpu_to_le64(rtl8180_get_tsf(dev));
/* TODO: use actual beacon queue */
skb_set_queue_mapping(skb, 0);
err = rtl8180_tx(dev, skb);
WARN_ON(err);
resched:
/*
* schedule next beacon
* TODO: use hardware support for beacon timing
*/
schedule_delayed_work(&vif_priv->beacon_work,
usecs_to_jiffies(1024 * vif->bss_conf.beacon_int));
}
static int rtl8180_add_interface(struct ieee80211_hw *dev,
struct ieee80211_vif *vif)
{
struct rtl8180_priv *priv = dev->priv;
struct rtl8180_vif *vif_priv;
/*
* We only support one active interface at a time.
*/
if (priv->vif)
return -EBUSY;
switch (vif->type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
break;
default:
return -EOPNOTSUPP;
}
priv->vif = vif;
/* Initialize driver private area */
vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
vif_priv->dev = dev;
INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8180_beacon_work);
vif_priv->enable_beacon = false;
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0],
le32_to_cpu(*(__le32 *)vif->addr));
rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4],
le16_to_cpu(*(__le16 *)(vif->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_vif *vif)
{
struct rtl8180_priv *priv = dev->priv;
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 void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u32 changed)
{
struct rtl8180_priv *priv = dev->priv;
struct rtl8180_vif *vif_priv;
int i;
vif_priv = (struct rtl8180_vif *)&vif->drv_priv;
if (changed & BSS_CHANGED_BSSID) {
for (i = 0; i < ETH_ALEN; i++)
rtl818x_iowrite8(priv, &priv->map->BSSID[i],
info->bssid[i]);
if (is_valid_ether_addr(info->bssid))
rtl818x_iowrite8(priv, &priv->map->MSR,
RTL818X_MSR_INFRA);
else
rtl818x_iowrite8(priv, &priv->map->MSR,
RTL818X_MSR_NO_LINK);
}
if (changed & BSS_CHANGED_ERP_SLOT && priv->rf->conf_erp)
priv->rf->conf_erp(dev, info);
if (changed & BSS_CHANGED_BEACON_ENABLED)
vif_priv->enable_beacon = info->enable_beacon;
if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) {
cancel_delayed_work_sync(&vif_priv->beacon_work);
if (vif_priv->enable_beacon)
schedule_work(&vif_priv->beacon_work.work);
}
}
static u64 rtl8180_prepare_multicast(struct ieee80211_hw *dev,
struct netdev_hw_addr_list *mc_list)
{
return netdev_hw_addr_list_count(mc_list);
}
static void rtl8180_configure_filter(struct ieee80211_hw *dev,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
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 || multicast > 0)
priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
else
priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST;
*total_flags = 0;
if (priv->rx_conf & RTL818X_RX_CONF_FCS)
*total_flags |= FIF_FCSFAIL;
if (priv->rx_conf & RTL818X_RX_CONF_CTRL)
*total_flags |= FIF_CONTROL;
if (priv->rx_conf & RTL818X_RX_CONF_MONITOR)
*total_flags |= FIF_OTHER_BSS;
if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
*total_flags |= FIF_ALLMULTI;
rtl818x_iowrite32(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,
.bss_info_changed = rtl8180_bss_info_changed,
.prepare_multicast = rtl8180_prepare_multicast,
.configure_filter = rtl8180_configure_filter,
.get_tsf = rtl8180_get_tsf,
};
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;
u8 mac_addr[ETH_ALEN];
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, DMA_BIT_MASK(32))) ||
(err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
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 |
mac80211: use hardware flags for signal/noise units trying to clean up the signal/noise code. the previous code in mac80211 had confusing names for the related variables, did not have much definition of what units of signal and noise were provided and used implicit mechanisms from the wireless extensions. this patch introduces hardware capability flags to let the hardware specify clearly if it can provide signal and noise level values and which units it can provide. this also anticipates possible new units like RCPI in the future. for signal: IEEE80211_HW_SIGNAL_UNSPEC - unspecified, unknown, hw specific IEEE80211_HW_SIGNAL_DB - dB difference to unspecified reference point IEEE80211_HW_SIGNAL_DBM - dBm, difference to 1mW for noise we currently only have dBm: IEEE80211_HW_NOISE_DBM - dBm, difference to 1mW if IEEE80211_HW_SIGNAL_UNSPEC or IEEE80211_HW_SIGNAL_DB is used the driver has to provide the maximum value (max_signal) it reports in order for applications to make sense of the signal values. i tried my best to find out for each driver what it can provide and update it but i'm not sure (?) for some of them and used the more conservative guess in doubt. this can be fixed easily after this patch has been merged by changing the hardware flags of the driver. DRIVER SIGNAL MAX NOISE QUAL ----------------------------------------------------------------- adm8211 unspec(?) 100 n/a missing at76_usb unspec(?) (?) unused missing ath5k dBm dBm percent rssi b43legacy dBm dBm percent jssi(?) b43 dBm dBm percent jssi(?) iwl-3945 dBm dBm percent snr+more iwl-4965 dBm dBm percent snr+more p54 unspec 127 n/a missing rt2x00 dBm n/a percent rssi+tx/rx frame success rt2400 dBm n/a rt2500pci dBm n/a rt2500usb dBm n/a rt61pci dBm n/a rt73usb dBm n/a rtl8180 unspec(?) 65 n/a (?) rtl8187 unspec(?) 65 (?) noise(?) zd1211 dB(?) 100 n/a percent drivers/net/wireless/ath5k/base.c: Changes-licensed-under: 3-Clause-BSD Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-08 17:15:40 +00:00
IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_SIGNAL_UNSPEC;
dev->vif_data_size = sizeof(struct rtl8180_vif);
dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
dev->queues = 1;
mac80211: use hardware flags for signal/noise units trying to clean up the signal/noise code. the previous code in mac80211 had confusing names for the related variables, did not have much definition of what units of signal and noise were provided and used implicit mechanisms from the wireless extensions. this patch introduces hardware capability flags to let the hardware specify clearly if it can provide signal and noise level values and which units it can provide. this also anticipates possible new units like RCPI in the future. for signal: IEEE80211_HW_SIGNAL_UNSPEC - unspecified, unknown, hw specific IEEE80211_HW_SIGNAL_DB - dB difference to unspecified reference point IEEE80211_HW_SIGNAL_DBM - dBm, difference to 1mW for noise we currently only have dBm: IEEE80211_HW_NOISE_DBM - dBm, difference to 1mW if IEEE80211_HW_SIGNAL_UNSPEC or IEEE80211_HW_SIGNAL_DB is used the driver has to provide the maximum value (max_signal) it reports in order for applications to make sense of the signal values. i tried my best to find out for each driver what it can provide and update it but i'm not sure (?) for some of them and used the more conservative guess in doubt. this can be fixed easily after this patch has been merged by changing the hardware flags of the driver. DRIVER SIGNAL MAX NOISE QUAL ----------------------------------------------------------------- adm8211 unspec(?) 100 n/a missing at76_usb unspec(?) (?) unused missing ath5k dBm dBm percent rssi b43legacy dBm dBm percent jssi(?) b43 dBm dBm percent jssi(?) iwl-3945 dBm dBm percent snr+more iwl-4965 dBm dBm percent snr+more p54 unspec 127 n/a missing rt2x00 dBm n/a percent rssi+tx/rx frame success rt2400 dBm n/a rt2500pci dBm n/a rt2500usb dBm n/a rt61pci dBm n/a rt73usb dBm n/a rtl8180 unspec(?) 65 n/a (?) rtl8187 unspec(?) 65 (?) noise(?) zd1211 dB(?) 100 n/a percent drivers/net/wireless/ath5k/base.c: Changes-licensed-under: 3-Clause-BSD Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-08 17:15:40 +00:00
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 *)mac_addr, 3);
if (!is_valid_ether_addr(mac_addr)) {
printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using"
" randomly generated MAC addr\n", pci_name(pdev));
random_ether_addr(mac_addr);
}
SET_IEEE80211_PERM_ADDR(dev, mac_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;
}
wiphy_info(dev->wiphy, "hwaddr %pm, %s + %s\n",
mac_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);