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b43: make forcing clock common (HT-PHY also uses that) 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2011-08-12 00:03:26 +02:00 committed by John W. Linville
parent 6a461c23e7
commit f6a3e99da8
3 changed files with 38 additions and 36 deletions
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32
drivers/net/wireless/b43/phy_common.c
View File

@ -448,6 +448,38 @@ bool b43_channel_type_is_40mhz(enum nl80211_channel_type channel_type)
channel_type == NL80211_CHAN_HT40PLUS);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */
void b43_phy_force_clock(struct b43_wldev *dev, bool force)
{
u32 tmp;
WARN_ON(dev->phy.type != B43_PHYTYPE_N &&
dev->phy.type != B43_PHYTYPE_HT);
switch (dev->dev->bus_type) {
#ifdef CONFIG_B43_BCMA
case B43_BUS_BCMA:
tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
if (force)
tmp |= BCMA_IOCTL_FGC;
else
tmp &= ~BCMA_IOCTL_FGC;
bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
break;
#endif
#ifdef CONFIG_B43_SSB
case B43_BUS_SSB:
tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
if (force)
tmp |= SSB_TMSLOW_FGC;
else
tmp &= ~SSB_TMSLOW_FGC;
ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
break;
#endif
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/Cordic */
struct b43_c32 b43_cordic(int theta)
{

2
drivers/net/wireless/b43/phy_common.h
View File

@ -444,6 +444,8 @@ void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on);
bool b43_channel_type_is_40mhz(enum nl80211_channel_type channel_type);
void b43_phy_force_clock(struct b43_wldev *dev, bool force);
struct b43_c32 b43_cordic(int theta);
#endif /* LINUX_B43_PHY_COMMON_H_ */

40
drivers/net/wireless/b43/phy_n.c
View File

@ -600,49 +600,17 @@ static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev)
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */
static void b43_nphy_bmac_clock_fgc(struct b43_wldev *dev, bool force)
{
u32 tmp;
if (dev->phy.type != B43_PHYTYPE_N)
return;
switch (dev->dev->bus_type) {
#ifdef CONFIG_B43_BCMA
case B43_BUS_BCMA:
tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
if (force)
tmp |= BCMA_IOCTL_FGC;
else
tmp &= ~BCMA_IOCTL_FGC;
bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
break;
#endif
#ifdef CONFIG_B43_SSB
case B43_BUS_SSB:
tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
if (force)
tmp |= SSB_TMSLOW_FGC;
else
tmp &= ~SSB_TMSLOW_FGC;
ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
break;
#endif
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CCA */
static void b43_nphy_reset_cca(struct b43_wldev *dev)
{
u16 bbcfg;
b43_nphy_bmac_clock_fgc(dev, 1);
b43_phy_force_clock(dev, 1);
bbcfg = b43_phy_read(dev, B43_NPHY_BBCFG);
b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg | B43_NPHY_BBCFG_RSTCCA);
udelay(1);
b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg & ~B43_NPHY_BBCFG_RSTCCA);
b43_nphy_bmac_clock_fgc(dev, 0);
b43_phy_force_clock(dev, 0);
b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RESET2RX);
}
@ -3715,11 +3683,11 @@ int b43_phy_initn(struct b43_wldev *dev)
b43_nphy_workarounds(dev);
/* Reset CCA, in init code it differs a little from standard way */
b43_nphy_bmac_clock_fgc(dev, 1);
b43_phy_force_clock(dev, 1);
tmp = b43_phy_read(dev, B43_NPHY_BBCFG);
b43_phy_write(dev, B43_NPHY_BBCFG, tmp | B43_NPHY_BBCFG_RSTCCA);
b43_phy_write(dev, B43_NPHY_BBCFG, tmp & ~B43_NPHY_BBCFG_RSTCCA);
b43_nphy_bmac_clock_fgc(dev, 0);
b43_phy_force_clock(dev, 0);
b43_mac_phy_clock_set(dev, true);