From 88d15707644fad1a137af7a17b00da6135f1c1a8 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Wed, 14 Jan 2009 20:17:04 +0100 Subject: [PATCH] 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. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos Signed-off-by: Imre Kaloz Tested-by: Pavel Roskin Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/core.h | 10 ++++++++++ drivers/net/wireless/ath9k/main.c | 9 +++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h index 2256ba47dd49..8e93d11d57af 100644 --- a/drivers/net/wireless/ath9k/core.h +++ b/drivers/net/wireless/ath9k/core.h @@ -693,6 +693,10 @@ enum PROT_MODE { #define SC_OP_RFKILL_SW_BLOCKED BIT(12) #define SC_OP_RFKILL_HW_BLOCKED BIT(13) +struct ath_bus_ops { + void (*read_cachesize)(struct ath_softc *sc, int *csz); +}; + struct ath_softc { struct ieee80211_hw *hw; struct device *dev; @@ -743,6 +747,7 @@ struct ath_softc { #ifdef CONFIG_ATH9K_DEBUG struct ath9k_debug sc_debug; #endif + struct ath_bus_ops *bus_ops; }; int ath_reset(struct ath_softc *sc, bool retry_tx); @@ -750,4 +755,9 @@ 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 void ath_read_cachesize(struct ath_softc *sc, int *csz) +{ + sc->bus_ops->read_cachesize(sc, csz); +} + #endif /* CORE_H */ diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index ebf0467674cf..884469a30235 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -42,7 +42,7 @@ 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; @@ -1338,7 +1338,7 @@ static int ath_init(u16 devid, struct ath_softc *sc) * 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 */ @@ -2534,6 +2534,10 @@ ath_rf_name(u16 rf_version) return "????"; } +static struct ath_bus_ops ath_pci_bus_ops = { + .read_cachesize = ath_pci_read_cachesize, +}; + static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { void __iomem *mem; @@ -2622,6 +2626,7 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) sc->hw = hw; sc->dev = &pdev->dev; sc->mem = mem; + sc->bus_ops = &ath_pci_bus_ops; if (ath_attach(id->device, sc) != 0) { ret = -ENODEV; -- 2.30.2