diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-09-16 12:34:01 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-09-19 16:10:12 -0400 |
| commit | ac78a52f49e3645c49e2c13a239b570d2e590bee (patch) | |
| tree | 1e74da265dc1ee601110d36e478e6dd0f5195ef4 | |
| parent | 0c5644b98b54dd4d156aba098689adb2054205cd (diff) | |
b43: LCN-PHY: implement SPUR avoidance mode
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_lcn.c | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/phy_lcn.c b/drivers/net/wireless/b43/phy_lcn.c index 765036461204..895164783c3b 100644 --- a/drivers/net/wireless/b43/phy_lcn.c +++ b/drivers/net/wireless/b43/phy_lcn.c @@ -42,6 +42,39 @@ struct lcn_tx_iir_filter { u16 values[16]; }; +/* In theory it's PHY common function, move if needed */ +/* brcms_b_switch_macfreq */ +static void b43_phy_switch_macfreq(struct b43_wldev *dev, u8 spurmode) +{ + if (dev->dev->chip_id == 43224 || dev->dev->chip_id == 43225) { + switch (spurmode) { + case 2: /* 126 Mhz */ + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x2082); + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); + break; + case 1: /* 123 Mhz */ + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x5341); + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); + break; + default: /* 120 Mhz */ + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x8889); + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); + break; + } + } else if (dev->phy.type == B43_PHYTYPE_LCN) { + switch (spurmode) { + case 1: /* 82 Mhz */ + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x7CE0); + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC); + break; + default: /* 80 Mhz */ + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0xCCCD); + b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC); + break; + } + } +} + /************************************************** * Radio 2064. **************************************************/ @@ -367,6 +400,27 @@ static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev, return false; } +/* wlc_lcnphy_txrx_spur_avoidance_mode */ +static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev, + bool enable) +{ + if (enable) { + b43_phy_write(dev, 0x942, 0x7); + b43_phy_write(dev, 0x93b, ((1 << 13) + 23)); + b43_phy_write(dev, 0x93c, ((1 << 13) + 1989)); + + b43_phy_write(dev, 0x44a, 0x084); + b43_phy_write(dev, 0x44a, 0x080); + b43_phy_write(dev, 0x6d3, 0x2222); + b43_phy_write(dev, 0x6d3, 0x2220); + } else { + b43_phy_write(dev, 0x942, 0x0); + b43_phy_write(dev, 0x93b, ((0 << 13) + 23)); + b43_phy_write(dev, 0x93c, ((0 << 13) + 1989)); + } + b43_phy_switch_macfreq(dev, enable); +} + /************************************************** * Channel switching ops. **************************************************/ @@ -388,7 +442,7 @@ static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel) b43_phy_write(dev, 0x942, 0); - /* b43_phy_lcn_txrx_spur_avoidance_mode(dev, false); */ + b43_phy_lcn_txrx_spur_avoidance_mode(dev, false); b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00); b43_phy_write(dev, 0x425, 0x5907); } else { @@ -400,7 +454,7 @@ static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel) b43_phy_write(dev, 0x942, 0); - /* b43_phy_lcn_txrx_spur_avoidance_mode(dev, true); */ + b43_phy_lcn_txrx_spur_avoidance_mode(dev, true); b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00); b43_phy_write(dev, 0x425, 0x590a); } |