b43: bus: abstract R/W operations

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 53 insertions, 6 deletions

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index bb81ebcf512e..3378d93cc33d 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -883,34 +883,34 @@ static inline enum ieee80211_band b43_current_band(struct b43_wl *wl)
 
 static inline u16 b43_read16(struct b43_wldev *dev, u16 offset)
 {
-        return ssb_read16(dev->sdev, offset);
+        return dev->dev->read16(dev->dev, offset);
 }
 
 static inline void b43_write16(struct b43_wldev *dev, u16 offset, u16 value)
 {
-        ssb_write16(dev->sdev, offset, value);
+        dev->dev->write16(dev->dev, offset, value);
 }
 
 static inline u32 b43_read32(struct b43_wldev *dev, u16 offset)
 {
-        return ssb_read32(dev->sdev, offset);
+        return dev->dev->read32(dev->dev, offset);
 }
 
 static inline void b43_write32(struct b43_wldev *dev, u16 offset, u32 value)
 {
-        ssb_write32(dev->sdev, offset, value);
+        dev->dev->write32(dev->dev, offset, value);
 }
 
 static inline void b43_block_read(struct b43_wldev *dev, void *buffer,
                                  size_t count, u16 offset, u8 reg_width)
 {
-        ssb_block_read(dev->sdev, buffer, count, offset, reg_width);
+        dev->dev->block_read(dev->dev, buffer, count, offset, reg_width);
 }
 
 static inline void b43_block_write(struct b43_wldev *dev, const void *buffer,
                                    size_t count, u16 offset, u8 reg_width)
 {
-        ssb_block_write(dev->sdev, buffer, count, offset, reg_width);
+        dev->dev->block_write(dev->dev, buffer, count, offset, reg_width);
 }
 
 static inline bool b43_using_pio_transfers(struct b43_wldev *dev)
diff --git a/drivers/net/wireless/b43/bus.c b/drivers/net/wireless/b43/bus.c
index f8ccd2cea3f9..fe5fa267bc5b 100644
--- a/drivers/net/wireless/b43/bus.c
+++ b/drivers/net/wireless/b43/bus.c
@@ -25,6 +25,37 @@
 
 
 /* SSB */
+static inline u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
+{
+        return ssb_read16(dev->sdev, offset);
+}
+static inline u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
+{
+        return ssb_read32(dev->sdev, offset);
+}
+static inline
+void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
+{
+        ssb_write16(dev->sdev, offset, value);
+}
+static inline
+void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
+{
+        ssb_write32(dev->sdev, offset, value);
+}
+static inline
+void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer,
+                            size_t count, u16 offset, u8 reg_width)
+{
+        ssb_block_read(dev->sdev, buffer, count, offset, reg_width);
+}
+static inline
+void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer,
+                             size_t count, u16 offset, u8 reg_width)
+{
+        ssb_block_write(dev->sdev, buffer, count, offset, reg_width);
+}
+
 struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
 {
         struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@@ -32,5 +63,12 @@ struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
         dev->bus_type = B43_BUS_SSB;
         dev->sdev = sdev;
 
+        dev->read16 = b43_bus_ssb_read16;
+        dev->read32 = b43_bus_ssb_read32;
+        dev->write16 = b43_bus_ssb_write16;
+        dev->write32 = b43_bus_ssb_write32;
+        dev->block_read = b43_bus_ssb_block_read;
+        dev->block_write = b43_bus_ssb_block_write;
+
         return dev;
 }
diff --git a/drivers/net/wireless/b43/bus.h b/drivers/net/wireless/b43/bus.h
index 68bc00a7458e..9b390020fb52 100644
--- a/drivers/net/wireless/b43/bus.h
+++ b/drivers/net/wireless/b43/bus.h
@@ -10,6 +10,15 @@ struct b43_bus_dev {
         union {
                 struct ssb_device *sdev;
         };
+
+        u16 (*read16)(struct b43_bus_dev *dev, u16 offset);
+        u32 (*read32)(struct b43_bus_dev *dev, u16 offset);
+        void (*write16)(struct b43_bus_dev *dev, u16 offset, u16 value);
+        void (*write32)(struct b43_bus_dev *dev, u16 offset, u32 value);
+        void (*block_read)(struct b43_bus_dev *dev, void *buffer,
+                           size_t count, u16 offset, u8 reg_width);
+        void (*block_write)(struct b43_bus_dev *dev, const void *buffer,
+                            size_t count, u16 offset, u8 reg_width);
 };
 
 struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev);