From 0ef95ef08ca82a87c85a1656f434a03a98bfab5b Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Fri, 2 Jan 2009 16:07:50 +0100 Subject: [RFC 02/12] ath9k: introduce bus specific register access routines The AHB bus will require different code for register access, so we make them replaceable as well. Signed-off-by: Gabor Juhos Signed-off-by: Imre Kaloz --- drivers/net/wireless/ath9k/ath9k.h | 4 ++-- drivers/net/wireless/ath9k/core.h | 17 +++++++++++++++++ drivers/net/wireless/ath9k/main.c | 13 +++++++++++++ 3 files changed, 32 insertions(+), 2 deletions(-) --- a/drivers/net/wireless/ath9k/ath9k.h +++ b/drivers/net/wireless/ath9k/ath9k.h @@ -587,8 +587,8 @@ struct ath9k_country_entry { u8 iso[3]; }; -#define REG_WRITE(_ah, _reg, _val) iowrite32(_val, _ah->ah_sh + _reg) -#define REG_READ(_ah, _reg) ioread32(_ah->ah_sh + _reg) +#define REG_WRITE(_ah, _reg, _val) ath_reg_write(_ah, _reg, _val) +#define REG_READ(_ah, _reg) ath_reg_read(_ah, _reg) #define SM(_v, _f) (((_v) << _f##_S) & _f) #define MS(_v, _f) (((_v) & _f) >> _f##_S) --- a/drivers/net/wireless/ath9k/core.h +++ b/drivers/net/wireless/ath9k/core.h @@ -718,6 +718,9 @@ struct ath_bus_ops { size_t size, void *p, dma_addr_t da); + + u32 (*reg_read)(struct ath_hal *ah, unsigned reg); + void (*reg_write)(struct ath_hal *ah, unsigned reg, u32 val); }; struct ath_softc { @@ -826,4 +829,18 @@ static inline void ath_dma_free(struct a sc->bus_ops->dma_free(sc, size, p, da); } +static inline u32 ath_reg_read(struct ath_hal *ah, unsigned reg) +{ + struct ath_softc *sc = ah->ah_sc; + + return sc->bus_ops->reg_read(ah, reg); +} + +static inline void ath_reg_write(struct ath_hal *ah, unsigned reg, u32 val) +{ + struct ath_softc *sc = ah->ah_sc; + + sc->bus_ops->reg_write(ah, reg, val); +} + #endif /* CORE_H */ --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -2595,6 +2595,16 @@ static void ath_pci_dma_free(struct ath_ pci_free_consistent(sc->pdev, size, p, da); } +static u32 ath_pci_reg_read(struct ath_hal *ah, unsigned reg) +{ + return ioread32(ah->ah_sh + reg); +} + +static void ath_pci_reg_write(struct ath_hal *ah, unsigned reg, u32 val) +{ + iowrite32(val, ah->ah_sh + reg); +} + static struct ath_bus_ops ath_pci_bus_ops = { .dma_map_single_to_device = ath_pci_map_single_to_device, .dma_unmap_single_to_device = ath_pci_unmap_single_to_device, @@ -2605,6 +2615,9 @@ static struct ath_bus_ops ath_pci_bus_op .dma_sync_single_for_cpu = ath_pci_sync_single_for_cpu, .dma_alloc = ath_pci_dma_alloc, .dma_free = ath_pci_dma_free, + + .reg_read = ath_pci_reg_read, + .reg_write = ath_pci_reg_write, }; static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)