diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-09-16 14:33:59 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-09-20 00:10:11 +0400 |
| commit | b534706a0692912e72d4be78f45be57c5b231ed5 (patch) | |
| tree | ae21e6e65cfb6aa0e22859fb4161c6d447edb25f /drivers/net/wireless/b43 | |
| parent | 3861b2c5d90b219ee772b5a1d1a32ee630564121 (diff) | |
| download | linux-b534706a0692912e72d4be78f45be57c5b231ed5.tar.xz | |
b43: LCN-PHY: tweaks for channel switching
They have been taken from brcmsmac, add Broadcom's copyright.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43')
| -rw-r--r-- | drivers/net/wireless/b43/phy_lcn.c | 67 |
1 files changed, 63 insertions, 4 deletions
diff --git a/drivers/net/wireless/b43/phy_lcn.c b/drivers/net/wireless/b43/phy_lcn.c index d1dfeec7bc28..06d8efc2f29f 100644 --- a/drivers/net/wireless/b43/phy_lcn.c +++ b/drivers/net/wireless/b43/phy_lcn.c @@ -20,6 +20,14 @@ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA. + This file incorporates work covered by the following copyright and + permission notice: + + Copyright (c) 2010 Broadcom Corporation + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. */ #include <linux/slab.h> @@ -278,14 +286,50 @@ static void b43_phy_lcn_sense_setup(struct b43_wldev *dev) * Channel switching ops. **************************************************/ -static int b43_phy_lcn_set_channel(struct b43_wldev *dev, - struct ieee80211_channel *channel, - enum nl80211_channel_type channel_type) +/* wlc_lcnphy_set_chanspec_tweaks */ +static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel) { - /* TODO: PLL and PHY ops */ + struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc; + + b43_phy_maskset(dev, 0x448, ~0x300, (channel == 14) ? 0x200 : 0x100); + + if (channel == 1 || channel == 2 || channel == 3 || channel == 4 || + channel == 9 || channel == 10 || channel == 11 || channel == 12) { + bcma_chipco_pll_write(cc, 0x2, 0x03000c04); + bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x0); + bcma_chipco_pll_write(cc, 0x4, 0x200005c0); + + bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400); + + b43_phy_write(dev, 0x942, 0); + + /* b43_phy_lcn_txrx_spur_avoidance_mode(dev, false); */ + b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00); + b43_phy_write(dev, 0x425, 0x5907); + } else { + bcma_chipco_pll_write(cc, 0x2, 0x03140c04); + bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x333333); + bcma_chipco_pll_write(cc, 0x4, 0x202c2820); + + bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400); + + b43_phy_write(dev, 0x942, 0); + + /* b43_phy_lcn_txrx_spur_avoidance_mode(dev, true); */ + b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00); + b43_phy_write(dev, 0x425, 0x590a); + } b43_phy_set(dev, 0x44a, 0x44); b43_phy_write(dev, 0x44a, 0x80); +} + +/* wlc_phy_chanspec_set_lcnphy */ +static int b43_phy_lcn_set_channel(struct b43_wldev *dev, + struct ieee80211_channel *channel, + enum nl80211_channel_type channel_type) +{ + b43_phy_lcn_set_channel_tweaks(dev, channel->hw_value); b43_phy_set(dev, 0x44a, 0x44); b43_phy_write(dev, 0x44a, 0x80); @@ -336,6 +380,8 @@ static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev) /* wlc_phy_init_lcnphy */ static int b43_phy_lcn_op_init(struct b43_wldev *dev) { + struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc; + b43_phy_set(dev, 0x44a, 0x80); b43_phy_mask(dev, 0x44a, 0x7f); b43_phy_set(dev, 0x6d1, 0x80); @@ -359,6 +405,19 @@ static int b43_phy_lcn_op_init(struct b43_wldev *dev) b43_phy_lcn_sense_setup(dev); + b43_switch_channel(dev, dev->phy.channel); + + bcma_chipco_regctl_maskset(cc, 0, 0xf, 0x9); + bcma_chipco_chipctl_maskset(cc, 0, 0, 0x03cddddd); + + /* TODO */ + + b43_phy_set(dev, 0x448, 0x4000); + udelay(100); + b43_phy_mask(dev, 0x448, ~0x4000); + + /* TODO */ + return 0; } |