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From a81f936d72caabbcf5698a6636185a8f6630d692 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 2 Jan 2009 16:08:22 +0100
Subject: [RFC 03/12] ath9k: introduce bus specific cache size routine
The PCI specific bus_read_cachesize routine won't work on the AHB bus,
we have to replace it with a suitable one later.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
drivers/net/wireless/ath9k/core.h | 7 +++++++
drivers/net/wireless/ath9k/main.c | 8 +++++---
2 files changed, 12 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -721,6 +721,8 @@ struct ath_bus_ops {
u32 (*reg_read)(struct ath_hal *ah, unsigned reg);
void (*reg_write)(struct ath_hal *ah, unsigned reg, u32 val);
+
+ void (*read_cachesize)(struct ath_softc *sc, int *csz);
};
struct ath_softc {
@@ -843,4 +845,9 @@ static inline void ath_reg_write(struct
sc->bus_ops->reg_write(ah, reg, val);
}
+static inline void ath_read_cachesize(struct ath_softc *sc, int *csz)
+{
+ sc->bus_ops->read_cachesize(sc, csz);
+}
+
#endif /* CORE_H */
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -41,8 +41,7 @@ static struct pci_device_id ath_pci_id_t
static void ath_detach(struct ath_softc *sc);
/* return bus cachesize in 4B word units */
-
-static void bus_read_cachesize(struct ath_softc *sc, int *csz)
+static void ath_pci_read_cachesize(struct ath_softc *sc, int *csz)
{
u8 u8tmp;
@@ -59,6 +58,7 @@ static void bus_read_cachesize(struct at
*csz = DEFAULT_CACHELINE >> 2; /* Use the default size */
}
+
static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode)
{
sc->cur_rate_table = sc->hw_rate_table[mode];
@@ -1347,7 +1347,7 @@ static int ath_init(u16 devid, struct at
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
- bus_read_cachesize(sc, &csz);
+ ath_read_cachesize(sc, &csz);
/* XXX assert csz is non-zero */
sc->sc_cachelsz = csz << 2; /* convert to bytes */
@@ -2618,6 +2618,8 @@ static struct ath_bus_ops ath_pci_bus_op
.reg_read = ath_pci_reg_read,
.reg_write = ath_pci_reg_write,
+
+ .read_cachesize = ath_pci_read_cachesize,
};
static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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