b43: N-PHY: implement chain selection (4f4ab6cd) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/wireless/b43/phy_n.c

+29 −1

Original line number	Diff line number	Diff line
		@@ -438,6 +438,34 @@ static void b43_nphy_update_mimo_config(struct b43_wldev *dev, s32 preamble)
		b43_phy_write(dev, B43_NPHY_MIMOCFG, mimocfg);
		}

		/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/Chains */
		static void b43_nphy_update_txrx_chain(struct b43_wldev *dev)
		{
		struct b43_phy_n *nphy = dev->phy.n;

		bool override = false;
		u16 chain = 0x33;

		if (nphy->txrx_chain == 0) {
		chain = 0x11;
		override = true;
		} else if (nphy->txrx_chain == 1) {
		chain = 0x22;
		override = true;
		}

		b43_phy_maskset(dev, B43_NPHY_RFSEQCA,
		~(B43_NPHY_RFSEQCA_TXEN \| B43_NPHY_RFSEQCA_RXEN),
		chain);

		if (override)
		b43_phy_set(dev, B43_NPHY_RFSEQMODE,
		B43_NPHY_RFSEQMODE_CAOVER);
		else
		b43_phy_mask(dev, B43_NPHY_RFSEQMODE,
		~B43_NPHY_RFSEQMODE_CAOVER);
		}

		/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqEst */
		static void b43_nphy_rx_iq_est(struct b43_wldev dev, struct nphy_iq_est est,
		u16 samps, u8 time, bool wait)
		@@ -2223,7 +2251,7 @@ int b43_phy_initn(struct b43_wldev *dev)
		b43_phy_write(dev, B43_NPHY_TXRIFS_FRDEL, 0x30);

		b43_nphy_update_mimo_config(dev, nphy->preamble_override);
		/* TODO Update TX/RX chain */
		b43_nphy_update_txrx_chain(dev);

		if (phy->rev < 2) {
		b43_phy_write(dev, B43_NPHY_DUP40_GFBL, 0xAA8);

+1 −0

Original line number	Diff line number	Diff line
		@@ -987,6 +987,7 @@ struct b43_phy_n {
		bool txiqlocal_coeffsvalid;
		struct b43_phy_n_txpwrindex txpwrindex[2];

		u8 txrx_chain;
		u16 tx_rx_cal_phy_saveregs[11];
		u16 tx_rx_cal_radio_saveregs[22];