From a81f936d72caabbcf5698a6636185a8f6630d692 Mon Sep 17 00:00:00 2001 From: Gabor Juhos 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 Signed-off-by: Imre Kaloz --- 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)