Example #1
0
static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
				  struct ieee80211_channel *new_channel)
{
	struct bcma_device *core = dev->dev->bdev;
	int spuravoid = 0;

	/* Check for 13 and 14 is just a guess, we don't have enough logs. */
	if (new_channel->hw_value == 13 || new_channel->hw_value == 14)
		spuravoid = 1;
	bcma_core_pll_ctl(core, B43_BCMA_CLKCTLST_PHY_PLL_REQ, 0, false);
	bcma_pmu_spuravoid_pllupdate(&core->bus->drv_cc, spuravoid);
	bcma_core_pll_ctl(core,
			  B43_BCMA_CLKCTLST_80211_PLL_REQ |
			  B43_BCMA_CLKCTLST_PHY_PLL_REQ,
			  B43_BCMA_CLKCTLST_80211_PLL_ST |
			  B43_BCMA_CLKCTLST_PHY_PLL_ST, false);

	b43_mac_switch_freq(dev, spuravoid);

	b43_wireless_core_phy_pll_reset(dev);

	if (spuravoid)
		b43_phy_set(dev, B43_PHY_HT_BBCFG, B43_PHY_HT_BBCFG_RSTRX);
	else
		b43_phy_mask(dev, B43_PHY_HT_BBCFG,
				~B43_PHY_HT_BBCFG_RSTRX & 0xFFFF);

	b43_phy_ht_reset_cca(dev);
}
Example #2
0
File: phy_ht.c Project: mbgg/linux
static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
				  struct ieee80211_channel *new_channel)
{
	struct bcma_device *core = dev->dev->bdev;
	int spuravoid = 0;
	u16 tmp;

	/* Check for 13 and 14 is just a guess, we don't have enough logs. */
	if (new_channel->hw_value == 13 || new_channel->hw_value == 14)
		spuravoid = 1;
	bcma_core_pll_ctl(core, B43_BCMA_CLKCTLST_PHY_PLL_REQ, 0, false);
	bcma_pmu_spuravoid_pllupdate(&core->bus->drv_cc, spuravoid);
	bcma_core_pll_ctl(core,
			  B43_BCMA_CLKCTLST_80211_PLL_REQ |
			  B43_BCMA_CLKCTLST_PHY_PLL_REQ,
			  B43_BCMA_CLKCTLST_80211_PLL_ST |
			  B43_BCMA_CLKCTLST_PHY_PLL_ST, false);

	/* Values has been taken from wlc_bmac_switch_macfreq comments */
	switch (spuravoid) {
	case 2: /* 126MHz */
		tmp = 0x2082;
		break;
	case 1: /* 123MHz */
		tmp = 0x5341;
		break;
	default: /* 120MHz */
		tmp = 0x8889;
	}

	b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, tmp);
	b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);

	/* TODO: reset PLL */

	if (spuravoid)
		b43_phy_set(dev, B43_PHY_HT_BBCFG, B43_PHY_HT_BBCFG_RSTRX);
	else
		b43_phy_mask(dev, B43_PHY_HT_BBCFG,
				~B43_PHY_HT_BBCFG_RSTRX & 0xFFFF);

	b43_phy_ht_reset_cca(dev);
}