b43: N-PHY: implement and add reading one element tables

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

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/tables_nphy.c b/drivers/net/wireless/b43/tables_nphy.c
index fc08be0b976e..b8aed456da1f 100644
--- a/drivers/net/wireless/b43/tables_nphy.c
+++ b/drivers/net/wireless/b43/tables_nphy.c
@@ -2919,6 +2919,37 @@ static inline void assert_ntab_array_sizes(void)
 #undef check
 }
 
+u32 b43_ntab_read(struct b43_wldev *dev, u32 offset)
+{
+        u32 type, value;
+
+        type = offset & B43_NTAB_TYPEMASK;
+        offset &= ~B43_NTAB_TYPEMASK;
+        B43_WARN_ON(offset > 0xFFFF);
+
+        switch (type) {
+        case B43_NTAB_8BIT:
+                b43_phy_write(dev, B43_NPHY_TABLE_ADDR, offset);
+                value = b43_phy_read(dev, B43_NPHY_TABLE_DATALO) & 0xFF;
+                break;
+        case B43_NTAB_16BIT:
+                b43_phy_write(dev, B43_NPHY_TABLE_ADDR, offset);
+                value = b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
+                break;
+        case B43_NTAB_32BIT:
+                b43_phy_write(dev, B43_NPHY_TABLE_ADDR, offset);
+                value = b43_phy_read(dev, B43_NPHY_TABLE_DATAHI);
+                value <<= 16;
+                value |= b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
+                break;
+        default:
+                B43_WARN_ON(1);
+                value = 0;
+        }
+
+        return value;
+}
+
 void b43_ntab_write(struct b43_wldev *dev, u32 offset, u32 value)
 {
         u32 type;