summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath9k/pci.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 23:30:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 23:30:19 +0300
commitabb359450f20c32ae03039d8736f12b1d561caf5 (patch)
tree6e8723885feb66a138f19f0ff31615dc13a8d859 /drivers/net/wireless/ath/ath9k/pci.c
parentcb600d2f83c854ec3d6660063e4466431999489b (diff)
parent4e3dbdb1392a83bd21a6ff8f6bc785495058d37c (diff)
downloadlinux-abb359450f20c32ae03039d8736f12b1d561caf5.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits) cassini: Use local-mac-address prom property for Cassini MAC address net: remove the duplicate #ifdef __KERNEL__ net: bridge: check the length of skb after nf_bridge_maybe_copy_header() netconsole: clarify stopping message netconsole: don't announce stopping if nothing happened cnic: Fix the type field in SPQ messages netfilter: fix export secctx error handling netfilter: fix the race when initializing nf_ct_expect_hash_rnd ipv4: IP defragmentation must be ECN aware net: r6040: Return proper error for r6040_init_one dcb: use after free in dcb_flushapp() dcb: unlock on error in dcbnl_ieee_get() net: ixp4xx_eth: Return proper error for eth_init_one include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel net: add POLLPRI to sock_def_readable() af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks. net_sched: pfifo_head_drop problem mac80211: remove stray extern mac80211: implement off-channel TX using hw r-o-c offload mac80211: implement hardware offload for remain-on-channel ...
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/pci.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/pci.c110
1 files changed, 78 insertions, 32 deletions
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index b5b651413e77..78ef1f13386f 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -16,6 +16,7 @@
#include <linux/nl80211.h>
#include <linux/pci.h>
+#include <linux/ath9k_platform.h>
#include "ath9k.h"
static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
@@ -29,6 +30,7 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
{ PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI */
{ PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
{ PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E AR9300 */
+ { PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E AR9485 */
{ 0 }
};
@@ -53,21 +55,35 @@ static void ath_pci_read_cachesize(struct ath_common *common, int *csz)
static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data)
{
- struct ath_hw *ah = (struct ath_hw *) common->ah;
-
- common->ops->read(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
-
- if (!ath9k_hw_wait(ah,
- AR_EEPROM_STATUS_DATA,
- AR_EEPROM_STATUS_DATA_BUSY |
- AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
- AH_WAIT_TIMEOUT)) {
- return false;
+ struct ath_softc *sc = (struct ath_softc *) common->priv;
+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
+
+ if (pdata) {
+ if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
+ ath_err(common,
+ "%s: eeprom read failed, offset %08x is out of range\n",
+ __func__, off);
+ }
+
+ *data = pdata->eeprom_data[off];
+ } else {
+ struct ath_hw *ah = (struct ath_hw *) common->ah;
+
+ common->ops->read(ah, AR5416_EEPROM_OFFSET +
+ (off << AR5416_EEPROM_S));
+
+ if (!ath9k_hw_wait(ah,
+ AR_EEPROM_STATUS_DATA,
+ AR_EEPROM_STATUS_DATA_BUSY |
+ AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
+ AH_WAIT_TIMEOUT)) {
+ return false;
+ }
+
+ *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
+ AR_EEPROM_STATUS_DATA_VAL);
}
- *data = MS(common->ops->read(ah, AR_EEPROM_STATUS_DATA),
- AR_EEPROM_STATUS_DATA_VAL);
-
return true;
}
@@ -80,7 +96,7 @@ static void ath_pci_bt_coex_prep(struct ath_common *common)
struct pci_dev *pdev = to_pci_dev(sc->dev);
u8 aspm;
- if (!pdev->is_pcie)
+ if (!pci_is_pcie(pdev))
return;
pci_read_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, &aspm);
@@ -88,11 +104,23 @@ static void ath_pci_bt_coex_prep(struct ath_common *common)
pci_write_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, aspm);
}
+static void ath_pci_extn_synch_enable(struct ath_common *common)
+{
+ struct ath_softc *sc = (struct ath_softc *) common->priv;
+ struct pci_dev *pdev = to_pci_dev(sc->dev);
+ u8 lnkctl;
+
+ pci_read_config_byte(pdev, sc->sc_ah->caps.pcie_lcr_offset, &lnkctl);
+ lnkctl |= PCI_EXP_LNKCTL_ES;
+ pci_write_config_byte(pdev, sc->sc_ah->caps.pcie_lcr_offset, lnkctl);
+}
+
static const struct ath_bus_ops ath_pci_bus_ops = {
.ath_bus_type = ATH_PCI,
.read_cachesize = ath_pci_read_cachesize,
.eeprom_read = ath_pci_eeprom_read,
.bt_coex_prep = ath_pci_bt_coex_prep,
+ .extn_synch_en = ath_pci_extn_synch_enable,
};
static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
@@ -236,6 +264,8 @@ static void ath_pci_remove(struct pci_dev *pdev)
struct ath_softc *sc = aphy->sc;
void __iomem *mem = sc->mem;
+ if (!is_ath9k_unloaded)
+ sc->sc_ah->ah_flags |= AH_UNPLUGGED;
ath9k_deinit_device(sc);
free_irq(sc->irq, sc);
ieee80211_free_hw(sc->hw);
@@ -247,34 +277,25 @@ static void ath_pci_remove(struct pci_dev *pdev)
#ifdef CONFIG_PM
-static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+static int ath_pci_suspend(struct device *device)
{
+ struct pci_dev *pdev = to_pci_dev(device);
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
- pci_save_state(pdev);
- pci_disable_device(pdev);
- pci_set_power_state(pdev, PCI_D3hot);
-
return 0;
}
-static int ath_pci_resume(struct pci_dev *pdev)
+static int ath_pci_resume(struct device *device)
{
+ struct pci_dev *pdev = to_pci_dev(device);
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
u32 val;
- int err;
-
- pci_restore_state(pdev);
-
- err = pci_enable_device(pdev);
- if (err)
- return err;
/*
* Suspend/Resume resets the PCI configuration space, so we have to
@@ -290,10 +311,38 @@ static int ath_pci_resume(struct pci_dev *pdev)
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
+ /*
+ * Reset key cache to sane defaults (all entries cleared) instead of
+ * semi-random values after suspend/resume.
+ */
+ ath9k_ps_wakeup(sc);
+ ath9k_init_crypto(sc);
+ ath9k_ps_restore(sc);
+
+ sc->ps_idle = true;
+ ath9k_set_wiphy_idle(aphy, true);
+ ath_radio_disable(sc, hw);
+
return 0;
}
-#endif /* CONFIG_PM */
+static const struct dev_pm_ops ath9k_pm_ops = {
+ .suspend = ath_pci_suspend,
+ .resume = ath_pci_resume,
+ .freeze = ath_pci_suspend,
+ .thaw = ath_pci_resume,
+ .poweroff = ath_pci_suspend,
+ .restore = ath_pci_resume,
+};
+
+#define ATH9K_PM_OPS (&ath9k_pm_ops)
+
+#else /* !CONFIG_PM */
+
+#define ATH9K_PM_OPS NULL
+
+#endif /* !CONFIG_PM */
+
MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
@@ -302,10 +351,7 @@ static struct pci_driver ath_pci_driver = {
.id_table = ath_pci_id_table,
.probe = ath_pci_probe,
.remove = ath_pci_remove,
-#ifdef CONFIG_PM
- .suspend = ath_pci_suspend,
- .resume = ath_pci_resume,
-#endif /* CONFIG_PM */
+ .driver.pm = ATH9K_PM_OPS,
};
int ath_pci_init(void)