diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-06-27 14:58:51 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-06-29 14:53:23 -0400 |
| commit | bdb2dfb237997babac7b32c7a94dcfa18507a055 (patch) | |
| tree | 89dfedec5c560af12a78b666f4a098cd8895c45c | |
| parent | 1a93139237180404dc01970dfd33f4a5d5b2054c (diff) | |
| download | talos-obmc-linux-bdb2dfb237997babac7b32c7a94dcfa18507a055.tar.gz talos-obmc-linux-bdb2dfb237997babac7b32c7a94dcfa18507a055.zip | |
b43: HT-PHY: upload PHY values when switching channel
After calibrating radio you can find few PHY writes in MMIO dumps:
phy_read(0x0009) -> 0x0000
phy_write(0x01ce) <- 0x03dd
phy_write(0x01cf) <- 0x03d9
phy_write(0x01d0) <- 0x03d5
phy_write(0x01d1) <- 0x0424
phy_write(0x01d2) <- 0x0429
phy_write(0x01d3) <- 0x042d
By comparing to N-PHY code we found out that they are PHY tables for
channel switching plus band info read at the beginning.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/b43/phy_ht.c | 16 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/phy_ht.h | 14 |
2 files changed, 28 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c index 72f01ce8b42c..c48bcf6b7d16 100644 --- a/drivers/net/wireless/b43/phy_ht.c +++ b/drivers/net/wireless/b43/phy_ht.c @@ -82,7 +82,21 @@ static void b43_phy_ht_channel_setup(struct b43_wldev *dev, const struct b43_phy_ht_channeltab_e_phy *e, struct ieee80211_channel *new_channel) { - /* TODO */ + bool old_band_5ghz; + + old_band_5ghz = b43_phy_read(dev, B43_PHY_HT_BANDCTL) & 0; /* FIXME */ + if (new_channel->band == IEEE80211_BAND_5GHZ && !old_band_5ghz) { + /* TODO */ + } else if (new_channel->band == IEEE80211_BAND_2GHZ && old_band_5ghz) { + /* TODO */ + } + + b43_phy_write(dev, B43_PHY_HT_BW1, e->bw1); + b43_phy_write(dev, B43_PHY_HT_BW2, e->bw2); + b43_phy_write(dev, B43_PHY_HT_BW3, e->bw3); + b43_phy_write(dev, B43_PHY_HT_BW4, e->bw4); + b43_phy_write(dev, B43_PHY_HT_BW5, e->bw5); + b43_phy_write(dev, B43_PHY_HT_BW6, e->bw6); } static int b43_phy_ht_set_channel(struct b43_wldev *dev, diff --git a/drivers/net/wireless/b43/phy_ht.h b/drivers/net/wireless/b43/phy_ht.h index afa448d6571e..7ad7affc8df0 100644 --- a/drivers/net/wireless/b43/phy_ht.h +++ b/drivers/net/wireless/b43/phy_ht.h @@ -4,9 +4,16 @@ #include "phy_common.h" +#define B43_PHY_HT_BANDCTL 0x009 /* Band control */ #define B43_PHY_HT_TABLE_ADDR 0x072 /* Table address */ #define B43_PHY_HT_TABLE_DATALO 0x073 /* Table data low */ #define B43_PHY_HT_TABLE_DATAHI 0x074 /* Table data high */ +#define B43_PHY_HT_BW1 0x1CE +#define B43_PHY_HT_BW2 0x1CF +#define B43_PHY_HT_BW3 0x1D0 +#define B43_PHY_HT_BW4 0x1D1 +#define B43_PHY_HT_BW5 0x1D2 +#define B43_PHY_HT_BW6 0x1D3 #define B43_PHY_HT_RF_CTL1 B43_PHY_EXTG(0x010) @@ -20,7 +27,12 @@ /* Values for PHY registers used on channel switching */ struct b43_phy_ht_channeltab_e_phy { - /* TODO */ + u16 bw1; + u16 bw2; + u16 bw3; + u16 bw4; + u16 bw5; + u16 bw6; }; |
