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From 0ef95ef08ca82a87c85a1656f434a03a98bfab5b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
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 <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
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)
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