diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-08-24 09:52:34 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-26 14:47:57 (GMT) |
| commit | c750f795c721805f69254cf4dd91f67b28ff6ddc (patch) | |
| tree | b49688aa279b0e403b8b5a8cd5c6fa476d2a8c4b /drivers/net | |
| parent | fe8e084455f273b32cc57a5fbaf6c22ef984d657 (diff) | |
| download | linux-fsl-qoriq-c750f795c721805f69254cf4dd91f67b28ff6ddc.tar.xz | |
b43: HT-PHY: use separated function for forcing RF sequence
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@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/b43/phy_ht.c | 32 | ||||
| -rw-r--r-- | 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) |