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path: root/drivers/net/wireless/bcm43xx/bcm43xx_main.c
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Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_main.c')
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_main.c265
1 files changed, 166 insertions, 99 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index a94c6d8826f8..2ec2e5afce67 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -130,6 +130,10 @@ MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for debugging.");
{ PCI_VENDOR_ID_BROADCOM, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4307 802.11b */
{ PCI_VENDOR_ID_BROADCOM, 0x4307, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ /* Broadcom 4311 802.11(a)/b/g */
+ { PCI_VENDOR_ID_BROADCOM, 0x4311, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ /* Broadcom 4312 802.11a/b/g */
+ { PCI_VENDOR_ID_BROADCOM, 0x4312, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4318 802.11b/g */
{ PCI_VENDOR_ID_BROADCOM, 0x4318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
/* Broadcom 4319 802.11a/b/g */
@@ -746,7 +750,7 @@ int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
if (err)
goto err_ctlreg;
spromctl |= 0x10; /* SPROM WRITE enable. */
- bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
+ err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
if (err)
goto err_ctlreg;
/* We must burn lots of CPU cycles here, but that does not
@@ -768,7 +772,7 @@ int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
mdelay(20);
}
spromctl &= ~0x10; /* SPROM WRITE enable. */
- bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
+ err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
if (err)
goto err_ctlreg;
mdelay(500);
@@ -1463,6 +1467,23 @@ static void handle_irq_transmit_status(struct bcm43xx_private *bcm)
}
}
+static void drain_txstatus_queue(struct bcm43xx_private *bcm)
+{
+ u32 dummy;
+
+ if (bcm->current_core->rev < 5)
+ return;
+ /* Read all entries from the microcode TXstatus FIFO
+ * and throw them away.
+ */
+ while (1) {
+ dummy = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_0);
+ if (!dummy)
+ break;
+ dummy = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_1);
+ }
+}
+
static void bcm43xx_generate_noise_sample(struct bcm43xx_private *bcm)
{
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x408, 0x7F7F);
@@ -2583,8 +2604,9 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
/* fetch sb_id_hi from core information registers */
sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
- core_id = (sb_id_hi & 0xFFF0) >> 4;
- core_rev = (sb_id_hi & 0xF);
+ core_id = (sb_id_hi & 0x8FF0) >> 4;
+ core_rev = (sb_id_hi & 0x7000) >> 8;
+ core_rev |= (sb_id_hi & 0xF);
core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
/* if present, chipcommon is always core 0; read the chipid from it */
@@ -2662,14 +2684,10 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
bcm->chip_id, bcm->chip_rev);
dprintk(KERN_INFO PFX "Number of cores: %d\n", core_count);
if (bcm->core_chipcommon.available) {
- dprintk(KERN_INFO PFX "Core 0: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n",
- core_id, core_rev, core_vendor,
- bcm43xx_core_enabled(bcm) ? "enabled" : "disabled");
- }
-
- if (bcm->core_chipcommon.available)
+ dprintk(KERN_INFO PFX "Core 0: ID 0x%x, rev 0x%x, vendor 0x%x\n",
+ core_id, core_rev, core_vendor);
current_core = 1;
- else
+ } else
current_core = 0;
for ( ; current_core < core_count; current_core++) {
struct bcm43xx_coreinfo *core;
@@ -2687,13 +2705,13 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
core_rev = (sb_id_hi & 0xF);
core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
- dprintk(KERN_INFO PFX "Core %d: ID 0x%x, rev 0x%x, vendor 0x%x, %s\n",
- current_core, core_id, core_rev, core_vendor,
- bcm43xx_core_enabled(bcm) ? "enabled" : "disabled" );
+ dprintk(KERN_INFO PFX "Core %d: ID 0x%x, rev 0x%x, vendor 0x%x\n",
+ current_core, core_id, core_rev, core_vendor);
core = NULL;
switch (core_id) {
case BCM43xx_COREID_PCI:
+ case BCM43xx_COREID_PCIE:
core = &bcm->core_pci;
if (core->available) {
printk(KERN_WARNING PFX "Multiple PCI cores found.\n");
@@ -2732,12 +2750,12 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
case 6:
case 7:
case 9:
+ case 10:
break;
default:
- printk(KERN_ERR PFX "Error: Unsupported 80211 core revision %u\n",
+ printk(KERN_WARNING PFX
+ "Unsupported 80211 core revision %u\n",
core_rev);
- err = -ENODEV;
- goto out;
}
bcm->nr_80211_available++;
core->priv = ext_80211;
@@ -2851,16 +2869,11 @@ static int bcm43xx_wireless_core_init(struct bcm43xx_private *bcm,
u32 sbimconfiglow;
u8 limit;
- if (bcm->chip_rev < 5) {
+ if (bcm->core_pci.rev <= 5 && bcm->core_pci.id != BCM43xx_COREID_PCIE) {
sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
- if (bcm->bustype == BCM43xx_BUSTYPE_PCI)
- sbimconfiglow |= 0x32;
- else if (bcm->bustype == BCM43xx_BUSTYPE_SB)
- sbimconfiglow |= 0x53;
- else
- assert(0);
+ sbimconfiglow |= 0x32;
bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow);
}
@@ -2987,22 +3000,64 @@ static void bcm43xx_pcicore_broadcast_value(struct bcm43xx_private *bcm,
static int bcm43xx_pcicore_commit_settings(struct bcm43xx_private *bcm)
{
- int err;
- struct bcm43xx_coreinfo *old_core;
+ int err = 0;
- old_core = bcm->current_core;
- err = bcm43xx_switch_core(bcm, &bcm->core_pci);
- if (err)
- goto out;
+ bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
- bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+ if (bcm->core_chipcommon.available) {
+ err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
+ if (err)
+ goto out;
+
+ bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+
+ /* this function is always called when a PCI core is mapped */
+ err = bcm43xx_switch_core(bcm, &bcm->core_pci);
+ if (err)
+ goto out;
+ } else
+ bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
+
+ bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
- bcm43xx_switch_core(bcm, old_core);
- assert(err == 0);
out:
return err;
}
+static u32 bcm43xx_pcie_reg_read(struct bcm43xx_private *bcm, u32 address)
+{
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
+ return bcm43xx_read32(bcm, BCM43xx_PCIECORE_REG_DATA);
+}
+
+static void bcm43xx_pcie_reg_write(struct bcm43xx_private *bcm, u32 address,
+ u32 data)
+{
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_DATA, data);
+}
+
+static void bcm43xx_pcie_mdio_write(struct bcm43xx_private *bcm, u8 dev, u8 reg,
+ u16 data)
+{
+ int i;
+
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0x0082);
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_DATA, BCM43xx_PCIE_MDIO_ST |
+ BCM43xx_PCIE_MDIO_WT | (dev << BCM43xx_PCIE_MDIO_DEV) |
+ (reg << BCM43xx_PCIE_MDIO_REG) | BCM43xx_PCIE_MDIO_TA |
+ data);
+ udelay(10);
+
+ for (i = 0; i < 10; i++) {
+ if (bcm43xx_read32(bcm, BCM43xx_PCIECORE_MDIO_CTL) &
+ BCM43xx_PCIE_MDIO_TC)
+ break;
+ msleep(1);
+ }
+ bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0);
+}
+
/* Make an I/O Core usable. "core_mask" is the bitmask of the cores to enable.
* To enable core 0, pass a core_mask of 1<<0
*/
@@ -3022,7 +3077,8 @@ static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
if (err)
goto out;
- if (bcm->core_pci.rev < 6) {
+ if (bcm->current_core->rev < 6 ||
+ bcm->current_core->id == BCM43xx_COREID_PCI) {
value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC);
value |= (1 << backplane_flag_nr);
bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value);
@@ -3040,21 +3096,46 @@ static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
}
}
- value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
- value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
- bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
-
- if (bcm->core_pci.rev < 5) {
- value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
- value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
- & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
- value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
- & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
- bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
- err = bcm43xx_pcicore_commit_settings(bcm);
- assert(err == 0);
+ if (bcm->current_core->id == BCM43xx_COREID_PCI) {
+ value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
+ value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
+ bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
+
+ if (bcm->current_core->rev < 5) {
+ value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
+ value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
+ & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
+ value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
+ & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
+ bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
+ err = bcm43xx_pcicore_commit_settings(bcm);
+ assert(err == 0);
+ } else if (bcm->current_core->rev >= 11) {
+ value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
+ value |= BCM43xx_SBTOPCI2_MEMREAD_MULTI;
+ bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
+ }
+ } else {
+ if (bcm->current_core->rev == 0 || bcm->current_core->rev == 1) {
+ value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_TLP_WORKAROUND);
+ value |= 0x8;
+ bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_TLP_WORKAROUND,
+ value);
+ }
+ if (bcm->current_core->rev == 0) {
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_RXTIMER, 0x8128);
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_CDR, 0x0100);
+ bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
+ BCM43xx_SERDES_CDR_BW, 0x1466);
+ } else if (bcm->current_core->rev == 1) {
+ value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_DLLP_LINKCTL);
+ value |= 0x40;
+ bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_DLLP_LINKCTL,
+ value);
+ }
}
-
out_switch_back:
err = bcm43xx_switch_core(bcm, old_core);
out:
@@ -3123,57 +3204,43 @@ static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm)
static void do_periodic_work(struct bcm43xx_private *bcm)
{
- unsigned int state;
-
- state = bcm->periodic_state;
- if (state % 8 == 0)
+ if (bcm->periodic_state % 8 == 0)
bcm43xx_periodic_every120sec(bcm);
- if (state % 4 == 0)
+ if (bcm->periodic_state % 4 == 0)
bcm43xx_periodic_every60sec(bcm);
- if (state % 2 == 0)
+ if (bcm->periodic_state % 2 == 0)
bcm43xx_periodic_every30sec(bcm);
- if (state % 1 == 0)
- bcm43xx_periodic_every15sec(bcm);
- bcm->periodic_state = state + 1;
+ bcm43xx_periodic_every15sec(bcm);
schedule_delayed_work(&bcm->periodic_work, HZ * 15);
}
-/* Estimate a "Badness" value based on the periodic work
- * state-machine state. "Badness" is worse (bigger), if the
- * periodic work will take longer.
- */
-static int estimate_periodic_work_badness(unsigned int state)
+static void bcm43xx_periodic_work_handler(struct work_struct *work)
{
- int badness = 0;
-
- if (state % 8 == 0) /* every 120 sec */
- badness += 10;
- if (state % 4 == 0) /* every 60 sec */
- badness += 5;
- if (state % 2 == 0) /* every 30 sec */
- badness += 1;
- if (state % 1 == 0) /* every 15 sec */
- badness += 1;
-
-#define BADNESS_LIMIT 4
- return badness;
-}
-
-static void bcm43xx_periodic_work_handler(void *d)
-{
- struct bcm43xx_private *bcm = d;
+ struct bcm43xx_private *bcm =
+ container_of(work, struct bcm43xx_private, periodic_work.work);
+ struct net_device *net_dev = bcm->net_dev;
unsigned long flags;
u32 savedirqs = 0;
- int badness;
+ unsigned long orig_trans_start = 0;
mutex_lock(&bcm->mutex);
- badness = estimate_periodic_work_badness(bcm->periodic_state);
- if (badness > BADNESS_LIMIT) {
+ if (unlikely(bcm->periodic_state % 4 == 0)) {
/* Periodic work will take a long time, so we want it to
* be preemtible.
*/
- netif_tx_disable(bcm->net_dev);
+
+ netif_tx_lock_bh(net_dev);
+ /* We must fake a started transmission here, as we are going to
+ * disable TX. If we wouldn't fake a TX, it would be possible to
+ * trigger the netdev watchdog, if the last real TX is already
+ * some time on the past (slightly less than 5secs)
+ */
+ orig_trans_start = net_dev->trans_start;
+ net_dev->trans_start = jiffies;
+ netif_stop_queue(net_dev);
+ netif_tx_unlock_bh(net_dev);
+
spin_lock_irqsave(&bcm->irq_lock, flags);
bcm43xx_mac_suspend(bcm);
if (bcm43xx_using_pio(bcm))
@@ -3190,7 +3257,7 @@ static void bcm43xx_periodic_work_handler(void *d)
do_periodic_work(bcm);
- if (badness > BADNESS_LIMIT) {
+ if (unlikely(bcm->periodic_state % 4 == 0)) {
spin_lock_irqsave(&bcm->irq_lock, flags);
tasklet_enable(&bcm->isr_tasklet);
bcm43xx_interrupt_enable(bcm, savedirqs);
@@ -3198,8 +3265,10 @@ static void bcm43xx_periodic_work_handler(void *d)
bcm43xx_pio_thaw_txqueues(bcm);
bcm43xx_mac_enable(bcm);
netif_wake_queue(bcm->net_dev);
+ net_dev->trans_start = orig_trans_start;
}
mmiowb();
+ bcm->periodic_state++;
spin_unlock_irqrestore(&bcm->irq_lock, flags);
mutex_unlock(&bcm->mutex);
}
@@ -3211,11 +3280,11 @@ void bcm43xx_periodic_tasks_delete(struct bcm43xx_private *bcm)
void bcm43xx_periodic_tasks_setup(struct bcm43xx_private *bcm)
{
- struct work_struct *work = &(bcm->periodic_work);
+ struct delayed_work *work = &bcm->periodic_work;
assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
- INIT_WORK(work, bcm43xx_periodic_work_handler, bcm);
- schedule_work(work);
+ INIT_DELAYED_WORK(work, bcm43xx_periodic_work_handler);
+ schedule_delayed_work(work, 0);
}
static void bcm43xx_security_init(struct bcm43xx_private *bcm)
@@ -3518,6 +3587,7 @@ int bcm43xx_select_wireless_core(struct bcm43xx_private *bcm,
bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr));
bcm43xx_security_init(bcm);
+ drain_txstatus_queue(bcm);
ieee80211softmac_start(bcm->net_dev);
/* Let's go! Be careful after enabling the IRQs.
@@ -3566,7 +3636,7 @@ static int bcm43xx_init_board(struct bcm43xx_private *bcm)
bcm43xx_periodic_tasks_setup(bcm);
/*FIXME: This should be handled by softmac instead. */
- schedule_work(&bcm->softmac->associnfo.work);
+ schedule_delayed_work(&bcm->softmac->associnfo.work, 0);
out:
mutex_unlock(&(bcm)->mutex);
@@ -3644,7 +3714,7 @@ static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm)
bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
break;
case BCM43xx_PHYTYPE_G:
- if (phy_rev > 7)
+ if (phy_rev > 8)
phy_rev_ok = 0;
bcm->ieee->modulation = IEEE80211_OFDM_MODULATION |
IEEE80211_CCK_MODULATION;
@@ -3656,6 +3726,8 @@ static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm)
phy_type);
return -ENODEV;
};
+ bcm->ieee->perfect_rssi = RX_RSSI_MAX;
+ bcm->ieee->worst_rssi = 0;
if (!phy_rev_ok) {
printk(KERN_WARNING PFX "Invalid PHY Revision %x\n",
phy_rev);
@@ -3942,11 +4014,6 @@ static int bcm43xx_ieee80211_hard_start_xmit(struct ieee80211_txb *txb,
return NETDEV_TX_OK;
}
-static struct net_device_stats * bcm43xx_net_get_stats(struct net_device *net_dev)
-{
- return &(bcm43xx_priv(net_dev)->ieee->stats);
-}
-
static void bcm43xx_net_tx_timeout(struct net_device *net_dev)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
@@ -4060,7 +4127,6 @@ static int __devinit bcm43xx_init_one(struct pci_dev *pdev,
net_dev->open = bcm43xx_net_open;
net_dev->stop = bcm43xx_net_stop;
- net_dev->get_stats = bcm43xx_net_get_stats;
net_dev->tx_timeout = bcm43xx_net_tx_timeout;
#ifdef CONFIG_NET_POLL_CONTROLLER
net_dev->poll_controller = bcm43xx_net_poll_controller;
@@ -4117,9 +4183,10 @@ static void __devexit bcm43xx_remove_one(struct pci_dev *pdev)
/* Hard-reset the chip. Do not call this directly.
* Use bcm43xx_controller_restart()
*/
-static void bcm43xx_chip_reset(void *_bcm)
+static void bcm43xx_chip_reset(struct work_struct *work)
{
- struct bcm43xx_private *bcm = _bcm;
+ struct bcm43xx_private *bcm =
+ container_of(work, struct bcm43xx_private, restart_work);
struct bcm43xx_phyinfo *phy;
int err = -ENODEV;
@@ -4146,7 +4213,7 @@ void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason)
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
return;
printk(KERN_ERR PFX "Controller RESET (%s) ...\n", reason);
- INIT_WORK(&bcm->restart_work, bcm43xx_chip_reset, bcm);
+ INIT_WORK(&bcm->restart_work, bcm43xx_chip_reset);
schedule_work(&bcm->restart_work);
}