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[PATCH 08/11] b43: implement writing to MMIO shared memory

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Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
 drivers/net/wireless/b43/phy_common.c |   11 +++++++++++
 drivers/net/wireless/b43/phy_common.h |    2 ++
 2 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
index 8f7d7ef..0b0f9df 100644
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -466,3 +466,14 @@ struct b43_c32 b43_cordic(int theta)
 
 	return ret;
 }
+
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/BmacWriteShm */
+void b43_bmac_write_shm(struct b43_wldev *dev, u32 offset, u16 value)
+{
+	b43_write32(dev, B43_MMIO_SHM_CONTROL, 0x00010000 | (offset >> 2));
+	b43_read32(dev, B43_MMIO_SHM_CONTROL);
+	if (offset & 2)
+		b43_write16(dev, 0x165, value);
+	else
+		b43_write16(dev, B43_MMIO_SHM_DATA, value);
+}
diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
index bd480b4..484d4d7 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -429,4 +429,6 @@ void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on);
 
 struct b43_c32 b43_cordic(int theta);
 
+void b43_bmac_write_shm(struct b43_wldev *dev, u32 offset, u16 value);
+
 #endif /* LINUX_B43_PHY_COMMON_H_ */
-- 
1.6.4.2

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