* [PATCH v2 1/4] atheros/ath9k: add common read/write ops and port ath9k to use it
2009-09-14 8:31 [PATCH v2 0/4] atheros: implement common read/write ops Luis R. Rodriguez
@ 2009-09-14 8:32 ` Luis R. Rodriguez
2009-09-14 8:32 ` [PATCH v2 2/4] ath5k: allocate ath5k_hw prior to initializing hw Luis R. Rodriguez
` (2 subsequent siblings)
3 siblings, 0 replies; 12+ messages in thread
From: Luis R. Rodriguez @ 2009-09-14 8:32 UTC (permalink / raw)
To: linville; +Cc: linux-wireless, devel, ath9k-devel, Luis R. Rodriguez
In an effort to make hw code driver core agnostic read
and write operations are defined on the ath_common structure.
This patch adds that and makes ath9k use it. This allows
drivers like ath9k_htc to define its own read/write ops and
still rely on the same hw code. This also paves the way for
sharing code between ath9k/ath5k/ath9k_htc.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
drivers/net/wireless/ath/ath.h | 6 ++++
drivers/net/wireless/ath/ath9k/ath9k.h | 13 ----------
drivers/net/wireless/ath/ath9k/hw.c | 32 ------------------------
drivers/net/wireless/ath/ath9k/hw.h | 17 +++++++++++-
drivers/net/wireless/ath/ath9k/main.c | 42 ++++++++++++++++++++++++++++++++
5 files changed, 63 insertions(+), 47 deletions(-)
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 7589b2a..38be427 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -39,6 +39,11 @@ struct ath_regulatory {
struct reg_dmn_pair_mapping *regpair;
};
+struct ath_ops {
+ unsigned int (*read)(void *, u32 reg_offset);
+ void (*write)(void *, u32 val, u32 reg_offset);
+};
+
struct ath_common {
u16 cachelsz;
u16 curaid;
@@ -46,6 +51,7 @@ struct ath_common {
u8 curbssid[ETH_ALEN];
u8 bssidmask[ETH_ALEN];
struct ath_regulatory regulatory;
+ struct ath_ops *ops;
};
struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 0962505..7c740cf 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -646,16 +646,6 @@ int ath_get_hal_qnum(u16 queue, struct ath_softc *sc);
int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
int ath_cabq_update(struct ath_softc *);
-static inline struct ath_common *ath9k_hw_common(struct ath_hw *ah)
-{
- return &ah->common;
-}
-
-static inline struct ath_regulatory *ath9k_hw_regulatory(struct ath_hw *ah)
-{
- return &(ath9k_hw_common(ah)->regulatory);
-}
-
static inline void ath_read_cachesize(struct ath_softc *sc, int *csz)
{
sc->bus_ops->read_cachesize(sc, csz);
@@ -718,8 +708,5 @@ bool ath9k_wiphy_scanning(struct ath_softc *sc);
void ath9k_wiphy_work(struct work_struct *work);
bool ath9k_all_wiphys_idle(struct ath_softc *sc);
-void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val);
-unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset);
-
int ath_tx_get_qnum(struct ath_softc *sc, int qtype, int haltype);
#endif /* ATH9K_H */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 5436244..dabff52 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -81,38 +81,6 @@ static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
return ath9k_hw_mac_clks(ah, usecs);
}
-/*
- * Read and write, they both share the same lock. We do this to serialize
- * reads and writes on Atheros 802.11n PCI devices only. This is required
- * as the FIFO on these devices can only accept sanely 2 requests. After
- * that the device goes bananas. Serializing the reads/writes prevents this
- * from happening.
- */
-
-void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val)
-{
- if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
- unsigned long flags;
- spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
- iowrite32(val, ah->ah_sc->mem + reg_offset);
- spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
- } else
- iowrite32(val, ah->ah_sc->mem + reg_offset);
-}
-
-unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset)
-{
- u32 val;
- if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
- unsigned long flags;
- spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
- val = ioread32(ah->ah_sc->mem + reg_offset);
- spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
- } else
- val = ioread32(ah->ah_sc->mem + reg_offset);
- return val;
-}
-
bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
{
int i;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 84deae4..0271680 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -51,8 +51,11 @@
#define AT9285_COEX3WIRE_DA_SUBSYSID 0x30ab
/* Register read/write primitives */
-#define REG_WRITE(_ah, _reg, _val) ath9k_iowrite32((_ah), (_reg), (_val))
-#define REG_READ(_ah, _reg) ath9k_ioread32((_ah), (_reg))
+#define REG_WRITE(_ah, _reg, _val) \
+ ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
+
+#define REG_READ(_ah, _reg) \
+ ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
#define SM(_v, _f) (((_v) << _f##_S) & _f)
#define MS(_v, _f) (((_v) & _f) >> _f##_S)
@@ -588,6 +591,16 @@ struct ath_hw {
struct ath_gen_timer_table hw_gen_timers;
};
+static inline struct ath_common *ath9k_hw_common(struct ath_hw *ah)
+{
+ return &ah->common;
+}
+
+static inline struct ath_regulatory *ath9k_hw_regulatory(struct ath_hw *ah)
+{
+ return &(ath9k_hw_common(ah)->regulatory);
+}
+
/* Initialization, Detach, Reset */
const char *ath9k_hw_probe(u16 vendorid, u16 devid);
void ath9k_hw_detach(struct ath_hw *ah);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index b530e47..54d067c 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1494,6 +1494,47 @@ static int ath_init_btcoex_timer(struct ath_softc *sc)
}
/*
+ * Read and write, they both share the same lock. We do this to serialize
+ * reads and writes on Atheros 802.11n PCI devices only. This is required
+ * as the FIFO on these devices can only accept sanely 2 requests. After
+ * that the device goes bananas. Serializing the reads/writes prevents this
+ * from happening.
+ */
+
+static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
+{
+ struct ath_hw *ah = (struct ath_hw *) hw_priv;
+
+ if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+}
+
+static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
+{
+ struct ath_hw *ah = (struct ath_hw *) hw_priv;
+ u32 val;
+
+ if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ return val;
+}
+
+static struct ath_ops ath9k_common_ops = {
+ .read = ath9k_ioread32,
+ .write = ath9k_iowrite32,
+};
+
+/*
* Initialize and fill ath_softc, ath_sofct is the
* "Software Carrier" struct. Historically it has existed
* to allow the separation between hardware specific
@@ -1532,6 +1573,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
sc->sc_ah = ah;
common = ath9k_hw_common(ah);
+ common->ops = &ath9k_common_ops;
/*
* Cache line size is used to size and align various
--
1.6.3.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v2 2/4] ath5k: allocate ath5k_hw prior to initializing hw
2009-09-14 8:31 [PATCH v2 0/4] atheros: implement common read/write ops Luis R. Rodriguez
2009-09-14 8:32 ` [PATCH v2 1/4] atheros/ath9k: add common read/write ops and port ath9k to use it Luis R. Rodriguez
@ 2009-09-14 8:32 ` Luis R. Rodriguez
2009-09-14 8:45 ` Jiri Slaby
2009-09-14 8:32 ` [PATCH v2 3/4] ath5k: define ath_common ops Luis R. Rodriguez
2009-09-14 8:32 ` [PATCH v2 4/4] atheros: define shared bssidmask setting Luis R. Rodriguez
3 siblings, 1 reply; 12+ messages in thread
From: Luis R. Rodriguez @ 2009-09-14 8:32 UTC (permalink / raw)
To: linville; +Cc: linux-wireless, devel, ath9k-devel, Luis R. Rodriguez
We can propagate better errors upon failed hw initialization,
and set up the ath_common structure for attach purposes. This
will become important once we start using the ath_common
for read/write ops.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
drivers/net/wireless/ath/ath.h | 2 +-
drivers/net/wireless/ath/ath5k/ath5k.h | 2 +-
drivers/net/wireless/ath/ath5k/attach.c | 23 ++++-------------------
drivers/net/wireless/ath/ath5k/base.c | 20 ++++++++++++++++----
4 files changed, 22 insertions(+), 25 deletions(-)
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 38be427..be68cb8 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -51,7 +51,7 @@ struct ath_common {
u8 curbssid[ETH_ALEN];
u8 bssidmask[ETH_ALEN];
struct ath_regulatory regulatory;
- struct ath_ops *ops;
+ const struct ath_ops *ops;
};
struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index fee16fd..29ce868 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1147,7 +1147,7 @@ struct ath5k_hw {
*/
/* Attach/Detach Functions */
-extern struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc);
+extern int ath5k_hw_attach(struct ath5k_softc *sc);
extern void ath5k_hw_detach(struct ath5k_hw *ah);
/* LED functions */
diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index 123612a..c0840ab 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -101,28 +101,15 @@ static int ath5k_hw_post(struct ath5k_hw *ah)
* -ENODEV if the device is not supported or prints an error msg if something
* else went wrong.
*/
-struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
+int ath5k_hw_attach(struct ath5k_softc *sc)
{
- struct ath5k_hw *ah;
+ struct ath5k_hw *ah = sc->ah;
struct ath_common *common;
struct pci_dev *pdev = sc->pdev;
struct ath5k_eeprom_info *ee;
int ret;
u32 srev;
- /*If we passed the test malloc a ath5k_hw struct*/
- ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
- if (ah == NULL) {
- ret = -ENOMEM;
- ATH5K_ERR(sc, "out of memory\n");
- goto err;
- }
-
- ah->ah_sc = sc;
- ah->ah_sc->ah = ah;
- ah->ah_iobase = sc->iobase;
- common = ath5k_hw_common(ah);
-
/*
* HW information
*/
@@ -347,11 +334,10 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
/* turn on HW LEDs */
ath5k_hw_set_ledstate(ah, AR5K_LED_INIT);
- return ah;
+ return 0;
err_free:
kfree(ah);
-err:
- return ERR_PTR(ret);
+ return ret;
}
/**
@@ -371,5 +357,4 @@ void ath5k_hw_detach(struct ath5k_hw *ah)
ath5k_eeprom_detach(ah);
/* assume interrupts are down */
- kfree(ah);
}
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 06fc893..3cb0752 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -565,16 +565,25 @@ ath5k_pci_probe(struct pci_dev *pdev,
goto err_free;
}
- /* Initialize device */
- sc->ah = ath5k_hw_attach(sc);
- if (IS_ERR(sc->ah)) {
- ret = PTR_ERR(sc->ah);
+ /*If we passed the test malloc a ath5k_hw struct*/
+ sc->ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
+ if (!sc->ah) {
+ ret = -ENOMEM;
+ ATH5K_ERR(sc, "out of memory\n");
goto err_irq;
}
+ sc->ah->ah_sc = sc;
+ sc->ah->ah_iobase = sc->iobase;
common = ath5k_hw_common(sc->ah);
common->cachelsz = csz << 2; /* convert to bytes */
+ /* Initialize device */
+ ret = ath5k_hw_attach(sc);
+ if (ret) {
+ goto err_free_ah;
+ }
+
/* set up multi-rate retry capabilities */
if (sc->ah->ah_version == AR5K_AR5212) {
hw->max_rates = 4;
@@ -643,6 +652,8 @@ err_ah:
ath5k_hw_detach(sc->ah);
err_irq:
free_irq(pdev->irq, sc);
+err_free_ah:
+ kfree(sc->ah);
err_free:
ieee80211_free_hw(hw);
err_map:
@@ -664,6 +675,7 @@ ath5k_pci_remove(struct pci_dev *pdev)
ath5k_debug_finish_device(sc);
ath5k_detach(pdev, hw);
ath5k_hw_detach(sc->ah);
+ kfree(sc->ah);
free_irq(pdev->irq, sc);
pci_iounmap(pdev, sc->iobase);
pci_release_region(pdev, 0);
--
1.6.3.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v2 4/4] atheros: define shared bssidmask setting
2009-09-14 8:31 [PATCH v2 0/4] atheros: implement common read/write ops Luis R. Rodriguez
` (2 preceding siblings ...)
2009-09-14 8:32 ` [PATCH v2 3/4] ath5k: define ath_common ops Luis R. Rodriguez
@ 2009-09-14 8:32 ` Luis R. Rodriguez
3 siblings, 0 replies; 12+ messages in thread
From: Luis R. Rodriguez @ 2009-09-14 8:32 UTC (permalink / raw)
To: linville; +Cc: linux-wireless, devel, ath9k-devel, Luis R. Rodriguez
Also make ath5k and ath9k use it, and share register definitions.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
drivers/net/wireless/ath/Makefile | 5 +-
drivers/net/wireless/ath/ath.h | 3 +
drivers/net/wireless/ath/ath5k/ath5k.h | 2 +-
drivers/net/wireless/ath/ath5k/attach.c | 2 +-
drivers/net/wireless/ath/ath5k/base.c | 1 +
drivers/net/wireless/ath/ath5k/initvals.c | 4 +-
drivers/net/wireless/ath/ath5k/pcu.c | 121 ++--------------------------
drivers/net/wireless/ath/ath5k/reg.h | 8 +--
drivers/net/wireless/ath/ath9k/hw.c | 10 +--
drivers/net/wireless/ath/ath9k/main.c | 1 +
drivers/net/wireless/ath/ath9k/recv.c | 2 +-
drivers/net/wireless/ath/ath9k/reg.h | 5 +-
drivers/net/wireless/ath/ath9k/virtual.c | 2 +-
drivers/net/wireless/ath/hw.c | 126 +++++++++++++++++++++++++++++
drivers/net/wireless/ath/reg.h | 27 ++++++
15 files changed, 179 insertions(+), 140 deletions(-)
create mode 100644 drivers/net/wireless/ath/hw.c
create mode 100644 drivers/net/wireless/ath/reg.h
diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile
index 4bb0132..6ebf214 100644
--- a/drivers/net/wireless/ath/Makefile
+++ b/drivers/net/wireless/ath/Makefile
@@ -3,4 +3,7 @@ obj-$(CONFIG_ATH9K) += ath9k/
obj-$(CONFIG_AR9170_USB) += ar9170/
obj-$(CONFIG_ATH_COMMON) += ath.o
-ath-objs := main.o regd.o
+
+ath-objs := main.o \
+ regd.o \
+ hw.o
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index be68cb8..0582ee4 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -45,6 +45,7 @@ struct ath_ops {
};
struct ath_common {
+ void *ah;
u16 cachelsz;
u16 curaid;
u8 macaddr[ETH_ALEN];
@@ -58,4 +59,6 @@ struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
u32 len,
gfp_t gfp_mask);
+void ath_hw_setbssidmask(struct ath_common *common);
+
#endif /* ATH_H */
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 1416562..43585d5 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1192,7 +1192,7 @@ extern int ath5k_hw_set_opmode(struct ath5k_hw *ah);
/* BSSID Functions */
extern int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
extern void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id);
-extern int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
+extern void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
/* Receive start/stop functions */
extern void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
extern void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah);
diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index c0840ab..e230de8 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -104,7 +104,7 @@ static int ath5k_hw_post(struct ath5k_hw *ah)
int ath5k_hw_attach(struct ath5k_softc *sc)
{
struct ath5k_hw *ah = sc->ah;
- struct ath_common *common;
+ struct ath_common *common = ath5k_hw_common(ah);
struct pci_dev *pdev = sc->pdev;
struct ath5k_eeprom_info *ee;
int ret;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index c78ad55..25a0a73 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -593,6 +593,7 @@ ath5k_pci_probe(struct pci_dev *pdev,
sc->ah->ah_iobase = sc->iobase;
common = ath5k_hw_common(sc->ah);
common->ops = &ath5k_common_ops;
+ common->ah = sc->ah;
common->cachelsz = csz << 2; /* convert to bytes */
/* Initialize device */
diff --git a/drivers/net/wireless/ath/ath5k/initvals.c b/drivers/net/wireless/ath/ath5k/initvals.c
index 18eb519..8fa4393 100644
--- a/drivers/net/wireless/ath/ath5k/initvals.c
+++ b/drivers/net/wireless/ath/ath5k/initvals.c
@@ -560,8 +560,8 @@ static const struct ath5k_ini ar5212_ini_common_start[] = {
{ AR5K_SLEEP0, 0x0002aaaa },
{ AR5K_SLEEP1, 0x02005555 },
{ AR5K_SLEEP2, 0x00000000 },
- { AR5K_BSS_IDM0, 0xffffffff },
- { AR5K_BSS_IDM1, 0x0000ffff },
+ { AR_BSSMSKL, 0xffffffff },
+ { AR_BSSMSKU, 0x0000ffff },
{ AR5K_TXPC, 0x00000000 },
{ AR5K_PROFCNT_TX, 0x00000000 },
{ AR5K_PROFCNT_RX, 0x00000000 },
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index f03c06d..9ac7638 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -290,10 +290,10 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
*/
if (ah->ah_version == AR5K_AR5212) {
ath5k_hw_reg_write(ah, get_unaligned_le32(common->bssidmask),
- AR5K_BSS_IDM0);
+ AR_BSSMSKL);
ath5k_hw_reg_write(ah,
get_unaligned_le16(common->curbssid + 4),
- AR5K_BSS_IDM1);
+ AR_BSSMSKU);
}
/*
@@ -301,9 +301,9 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
*/
low_id = get_unaligned_le32(bssid);
high_id = get_unaligned_le16(bssid);
- ath5k_hw_reg_write(ah, low_id, AR5K_BSS_ID0);
+ ath5k_hw_reg_write(ah, low_id, AR_BSSMSKL);
ath5k_hw_reg_write(ah, high_id | ((assoc_id & 0x3fff) <<
- AR5K_BSS_ID1_AID_S), AR5K_BSS_ID1);
+ AR5K_BSS_ID1_AID_S), AR_BSSMSKU);
if (assoc_id == 0) {
ath5k_hw_disable_pspoll(ah);
@@ -316,125 +316,18 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
ath5k_hw_enable_pspoll(ah, NULL, 0);
}
-/**
- * ath5k_hw_set_bssid_mask - filter out bssids we listen
- *
- * @ah: the &struct ath5k_hw
- * @mask: the bssid_mask, a u8 array of size ETH_ALEN
- *
- * BSSID masking is a method used by AR5212 and newer hardware to inform PCU
- * which bits of the interface's MAC address should be looked at when trying
- * to decide which packets to ACK. In station mode and AP mode with a single
- * BSS every bit matters since we lock to only one BSS. In AP mode with
- * multiple BSSes (virtual interfaces) not every bit matters because hw must
- * accept frames for all BSSes and so we tweak some bits of our mac address
- * in order to have multiple BSSes.
- *
- * NOTE: This is a simple filter and does *not* filter out all
- * relevant frames. Some frames that are not for us might get ACKed from us
- * by PCU because they just match the mask.
- *
- * When handling multiple BSSes you can get the BSSID mask by computing the
- * set of ~ ( MAC XOR BSSID ) for all bssids we handle.
- *
- * When you do this you are essentially computing the common bits of all your
- * BSSes. Later it is assumed the harware will "and" (&) the BSSID mask with
- * the MAC address to obtain the relevant bits and compare the result with
- * (frame's BSSID & mask) to see if they match.
- */
-/*
- * Simple example: on your card you have have two BSSes you have created with
- * BSSID-01 and BSSID-02. Lets assume BSSID-01 will not use the MAC address.
- * There is another BSSID-03 but you are not part of it. For simplicity's sake,
- * assuming only 4 bits for a mac address and for BSSIDs you can then have:
- *
- * \
- * MAC: 0001 |
- * BSSID-01: 0100 | --> Belongs to us
- * BSSID-02: 1001 |
- * /
- * -------------------
- * BSSID-03: 0110 | --> External
- * -------------------
- *
- * Our bssid_mask would then be:
- *
- * On loop iteration for BSSID-01:
- * ~(0001 ^ 0100) -> ~(0101)
- * -> 1010
- * bssid_mask = 1010
- *
- * On loop iteration for BSSID-02:
- * bssid_mask &= ~(0001 ^ 1001)
- * bssid_mask = (1010) & ~(0001 ^ 1001)
- * bssid_mask = (1010) & ~(1001)
- * bssid_mask = (1010) & (0110)
- * bssid_mask = 0010
- *
- * A bssid_mask of 0010 means "only pay attention to the second least
- * significant bit". This is because its the only bit common
- * amongst the MAC and all BSSIDs we support. To findout what the real
- * common bit is we can simply "&" the bssid_mask now with any BSSID we have
- * or our MAC address (we assume the hardware uses the MAC address).
- *
- * Now, suppose there's an incoming frame for BSSID-03:
- *
- * IFRAME-01: 0110
- *
- * An easy eye-inspeciton of this already should tell you that this frame
- * will not pass our check. This is beacuse the bssid_mask tells the
- * hardware to only look at the second least significant bit and the
- * common bit amongst the MAC and BSSIDs is 0, this frame has the 2nd LSB
- * as 1, which does not match 0.
- *
- * So with IFRAME-01 we *assume* the hardware will do:
- *
- * allow = (IFRAME-01 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
- * --> allow = (0110 & 0010) == (0010 & 0001) ? 1 : 0;
- * --> allow = (0010) == 0000 ? 1 : 0;
- * --> allow = 0
- *
- * Lets now test a frame that should work:
- *
- * IFRAME-02: 0001 (we should allow)
- *
- * allow = (0001 & 1010) == 1010
- *
- * allow = (IFRAME-02 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
- * --> allow = (0001 & 0010) == (0010 & 0001) ? 1 :0;
- * --> allow = (0010) == (0010)
- * --> allow = 1
- *
- * Other examples:
- *
- * IFRAME-03: 0100 --> allowed
- * IFRAME-04: 1001 --> allowed
- * IFRAME-05: 1101 --> allowed but its not for us!!!
- *
- */
-int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
+void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
{
struct ath_common *common = ath5k_hw_common(ah);
- u32 low_id, high_id;
ATH5K_TRACE(ah->ah_sc);
/* Cache bssid mask so that we can restore it
* on reset */
memcpy(common->bssidmask, mask, ETH_ALEN);
- if (ah->ah_version == AR5K_AR5212) {
- low_id = get_unaligned_le32(mask);
- high_id = get_unaligned_le16(mask + 4);
-
- ath5k_hw_reg_write(ah, low_id, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, high_id, AR5K_BSS_IDM1);
-
- return 0;
- }
-
- return -EIO;
+ if (ah->ah_version == AR5K_AR5212)
+ ath_hw_setbssidmask(common);
}
-
/************\
* RX Control *
\************/
diff --git a/drivers/net/wireless/ath/ath5k/reg.h b/drivers/net/wireless/ath/ath5k/reg.h
index debad07..725acc4 100644
--- a/drivers/net/wireless/ath/ath5k/reg.h
+++ b/drivers/net/wireless/ath/ath5k/reg.h
@@ -35,7 +35,7 @@
* released by Atheros and on various debug messages found on the net.
*/
-
+#include "../reg.h"
/*====MAC DMA REGISTERS====*/
@@ -1650,12 +1650,6 @@
#define AR5K_SLEEP2_DTIM_PER_S 16
/*
- * BSSID mask registers
- */
-#define AR5K_BSS_IDM0 0x80e0 /* Upper bits */
-#define AR5K_BSS_IDM1 0x80e4 /* Lower bits */
-
-/*
* TX power control (TPC) register
*
* XXX: PCDAC steps (0.5dbm) or DBM ?
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index dabff52..80bfa18 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2423,7 +2423,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
| ah->sta_id1_defaults);
ath9k_hw_set_operating_mode(ah, ah->opmode);
- ath9k_hw_setbssidmask(ah);
+ ath_hw_setbssidmask(common);
REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
@@ -3950,14 +3950,6 @@ void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
REG_WRITE(ah, AR_MCAST_FIL1, filter1);
}
-void ath9k_hw_setbssidmask(struct ath_hw *ah)
-{
- struct ath_common *common = ath9k_hw_common(ah);
-
- REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(common->bssidmask));
- REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(common->bssidmask + 4));
-}
-
void ath9k_hw_write_associd(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 54d067c..3d5d597 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1574,6 +1574,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
+ common->ah = ah;
/*
* Cache line size is used to size and align various
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 97a5efe..fb635a0 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -282,7 +282,7 @@ static void ath_opmode_init(struct ath_softc *sc)
/* configure bssid mask */
if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
- ath9k_hw_setbssidmask(ah);
+ ath_hw_setbssidmask(common);
/* configure operational mode */
ath9k_hw_setopmode(ah);
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index e5c29eb..ce12252 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -17,6 +17,8 @@
#ifndef REG_H
#define REG_H
+#include "../reg.h"
+
#define AR_CR 0x0008
#define AR_CR_RXE 0x00000004
#define AR_CR_RXD 0x00000020
@@ -1420,9 +1422,6 @@ enum {
#define AR_SLEEP2_BEACON_TIMEOUT 0xFFE00000
#define AR_SLEEP2_BEACON_TIMEOUT_S 21
-#define AR_BSSMSKL 0x80e0
-#define AR_BSSMSKU 0x80e4
-
#define AR_TPC 0x80e8
#define AR_TPC_ACK 0x0000003f
#define AR_TPC_ACK_S 0x00
diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c
index 7b763b6..bc7d173 100644
--- a/drivers/net/wireless/ath/ath9k/virtual.c
+++ b/drivers/net/wireless/ath/ath9k/virtual.c
@@ -94,7 +94,7 @@ void ath9k_set_bssid_mask(struct ieee80211_hw *hw)
common->bssidmask[4] = ~mask[4];
common->bssidmask[5] = ~mask[5];
- ath9k_hw_setbssidmask(sc->sc_ah);
+ ath_hw_setbssidmask(common);
}
int ath9k_wiphy_add(struct ath_softc *sc)
diff --git a/drivers/net/wireless/ath/hw.c b/drivers/net/wireless/ath/hw.c
new file mode 100644
index 0000000..ecc9eb0
--- /dev/null
+++ b/drivers/net/wireless/ath/hw.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <asm/unaligned.h>
+
+#include "ath.h"
+#include "reg.h"
+
+#define REG_READ common->ops->read
+#define REG_WRITE common->ops->write
+
+/**
+ * ath_hw_set_bssid_mask - filter out bssids we listen
+ *
+ * @common: the ath_common struct for the device.
+ *
+ * BSSID masking is a method used by AR5212 and newer hardware to inform PCU
+ * which bits of the interface's MAC address should be looked at when trying
+ * to decide which packets to ACK. In station mode and AP mode with a single
+ * BSS every bit matters since we lock to only one BSS. In AP mode with
+ * multiple BSSes (virtual interfaces) not every bit matters because hw must
+ * accept frames for all BSSes and so we tweak some bits of our mac address
+ * in order to have multiple BSSes.
+ *
+ * NOTE: This is a simple filter and does *not* filter out all
+ * relevant frames. Some frames that are not for us might get ACKed from us
+ * by PCU because they just match the mask.
+ *
+ * When handling multiple BSSes you can get the BSSID mask by computing the
+ * set of ~ ( MAC XOR BSSID ) for all bssids we handle.
+ *
+ * When you do this you are essentially computing the common bits of all your
+ * BSSes. Later it is assumed the harware will "and" (&) the BSSID mask with
+ * the MAC address to obtain the relevant bits and compare the result with
+ * (frame's BSSID & mask) to see if they match.
+ *
+ * Simple example: on your card you have have two BSSes you have created with
+ * BSSID-01 and BSSID-02. Lets assume BSSID-01 will not use the MAC address.
+ * There is another BSSID-03 but you are not part of it. For simplicity's sake,
+ * assuming only 4 bits for a mac address and for BSSIDs you can then have:
+ *
+ * \
+ * MAC: 0001 |
+ * BSSID-01: 0100 | --> Belongs to us
+ * BSSID-02: 1001 |
+ * /
+ * -------------------
+ * BSSID-03: 0110 | --> External
+ * -------------------
+ *
+ * Our bssid_mask would then be:
+ *
+ * On loop iteration for BSSID-01:
+ * ~(0001 ^ 0100) -> ~(0101)
+ * -> 1010
+ * bssid_mask = 1010
+ *
+ * On loop iteration for BSSID-02:
+ * bssid_mask &= ~(0001 ^ 1001)
+ * bssid_mask = (1010) & ~(0001 ^ 1001)
+ * bssid_mask = (1010) & ~(1001)
+ * bssid_mask = (1010) & (0110)
+ * bssid_mask = 0010
+ *
+ * A bssid_mask of 0010 means "only pay attention to the second least
+ * significant bit". This is because its the only bit common
+ * amongst the MAC and all BSSIDs we support. To findout what the real
+ * common bit is we can simply "&" the bssid_mask now with any BSSID we have
+ * or our MAC address (we assume the hardware uses the MAC address).
+ *
+ * Now, suppose there's an incoming frame for BSSID-03:
+ *
+ * IFRAME-01: 0110
+ *
+ * An easy eye-inspeciton of this already should tell you that this frame
+ * will not pass our check. This is beacuse the bssid_mask tells the
+ * hardware to only look at the second least significant bit and the
+ * common bit amongst the MAC and BSSIDs is 0, this frame has the 2nd LSB
+ * as 1, which does not match 0.
+ *
+ * So with IFRAME-01 we *assume* the hardware will do:
+ *
+ * allow = (IFRAME-01 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
+ * --> allow = (0110 & 0010) == (0010 & 0001) ? 1 : 0;
+ * --> allow = (0010) == 0000 ? 1 : 0;
+ * --> allow = 0
+ *
+ * Lets now test a frame that should work:
+ *
+ * IFRAME-02: 0001 (we should allow)
+ *
+ * allow = (0001 & 1010) == 1010
+ *
+ * allow = (IFRAME-02 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
+ * --> allow = (0001 & 0010) == (0010 & 0001) ? 1 :0;
+ * --> allow = (0010) == (0010)
+ * --> allow = 1
+ *
+ * Other examples:
+ *
+ * IFRAME-03: 0100 --> allowed
+ * IFRAME-04: 1001 --> allowed
+ * IFRAME-05: 1101 --> allowed but its not for us!!!
+ *
+ */
+void ath_hw_setbssidmask(struct ath_common *common)
+{
+ void *ah = common->ah;
+
+ REG_WRITE(ah, get_unaligned_le32(common->bssidmask), AR_BSSMSKL);
+ REG_WRITE(ah, get_unaligned_le16(common->bssidmask + 4), AR_BSSMSKU);
+}
+EXPORT_SYMBOL(ath_hw_setbssidmask);
diff --git a/drivers/net/wireless/ath/reg.h b/drivers/net/wireless/ath/reg.h
new file mode 100644
index 0000000..dfe1fbe
--- /dev/null
+++ b/drivers/net/wireless/ath/reg.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef ATH_REGISTERS_H
+#define ATH_REGISTERS_H
+
+/*
+ * BSSID mask registers. See ath_hw_set_bssid_mask()
+ * for detailed documentation about these registers.
+ */
+#define AR_BSSMSKL 0x80e0
+#define AR_BSSMSKU 0x80e4
+
+#endif /* ATH_REGISTERS_H */
--
1.6.3.3
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