Comparison of the HT and N code has shown similarities in the ops
performed after b43_mac_phy_clock_set. That way we understood what is
happening in the HT-PHY code.
Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
drivers/net/wireless/b43/phy_ht.c | 32 +++++++++++++++++++++++---------
drivers/net/wireless/b43/phy_ht.h | 11 +++++++++++
2 files changed, 34 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c
index 62a9084..c0e436c 100644
--- a/drivers/net/wireless/b43/phy_ht.c
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -191,6 +191,27 @@ static void b43_phy_ht_afe_unk1(struct b43_wldev *dev)
}
}
+static void b43_phy_ht_force_rf_sequence(struct b43_wldev *dev, u16 rf_seq)
+{
+ u8 i;
+
+ u16 save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
+ b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE, 0x3);
+
+ b43_phy_set(dev, B43_PHY_HT_RF_SEQ_TRIG, rf_seq);
+ for (i = 0; i < 200; i++) {
+ if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & rf_seq)) {
+ i = 0;
+ break;
+ }
+ msleep(1);
+ }
+ if (i)
+ b43err(dev->wl, "Forcing RF sequence timeout\n");
+
+ b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
+}
+
static void b43_phy_ht_bphy_init(struct b43_wldev *dev)
{
unsigned int i;
@@ -313,7 +334,6 @@ static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev)
static int b43_phy_ht_op_init(struct b43_wldev *dev)
{
- u8 i;
u16 tmp;
b43_phy_ht_tables_init(dev);
@@ -418,14 +438,8 @@ static int b43_phy_ht_op_init(struct b43_wldev *dev)
b43_mac_phy_clock_set(dev, true);
- for (i = 0; i < 2; i++) {
- tmp = b43_phy_read(dev, B43_PHY_EXTG(0));
- b43_phy_set(dev, B43_PHY_EXTG(0), 0x3);
- b43_phy_set(dev, B43_PHY_EXTG(3), i ? 0x20 : 0x1);
- /* FIXME: wait for some bit to be cleared (find out which) */
- b43_phy_read(dev, B43_PHY_EXTG(4));
- b43_phy_write(dev, B43_PHY_EXTG(0), tmp);
- }
+ b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RX2TX);
+ b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RST2RX);
/* TODO: PHY op on reg 0xb0 */
diff --git a/drivers/net/wireless/b43/phy_ht.h b/drivers/net/wireless/b43/phy_ht.h
index f70af0c..0661ae2 100644
--- a/drivers/net/wireless/b43/phy_ht.h
+++ b/drivers/net/wireless/b43/phy_ht.h
@@ -19,6 +19,17 @@
#define B43_PHY_HT_BW5 0x1D2
#define B43_PHY_HT_BW6 0x1D3
+#define B43_PHY_HT_RF_SEQ_MODE B43_PHY_EXTG(0x000)
+#define B43_PHY_HT_RF_SEQ_TRIG B43_PHY_EXTG(0x003)
+#define B43_PHY_HT_RF_SEQ_TRIG_RX2TX 0x0001 /* RX2TX */
+#define B43_PHY_HT_RF_SEQ_TRIG_TX2RX 0x0002 /* TX2RX */
+#define B43_PHY_HT_RF_SEQ_TRIG_UPGH 0x0004 /* Update gain H */
+#define B43_PHY_HT_RF_SEQ_TRIG_UPGL 0x0008 /* Update gain L */
+#define B43_PHY_HT_RF_SEQ_TRIG_UPGU 0x0010 /* Update gain U */
+#define B43_PHY_HT_RF_SEQ_TRIG_RST2RX 0x0020 /* Reset to RX */
+#define B43_PHY_HT_RF_SEQ_STATUS B43_PHY_EXTG(0x004)
+/* Values for the status are the same as for the trigger */
+
#define B43_PHY_HT_RF_CTL1 B43_PHY_EXTG(0x010)
#define B43_PHY_HT_AFE_CTL1 B43_PHY_EXTG(0x110)
--
1.7.3.4
--
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