b43: N-PHY: add TX tone (59af099b) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/wireless/b43/phy_n.c

+55 −5

Original line number	Diff line number	Diff line
		@@ -816,6 +816,43 @@ static void b43_nphy_stop_playback(struct b43_wldev *dev)
		b43_nphy_stay_in_carrier_search(dev, 0);
		}

		/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/GenLoadSamples */
		static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
		bool test)
		{
		int i;
		u16 bw, len, num, rot, angle;
		/* TODO: buffer; /

		bw = (dev->phy.is_40mhz) ? 40 : 20;
		len = bw << 3;

		if (test) {
		if (b43_phy_read(dev, B43_NPHY_BBCFG) & B43_NPHY_BBCFG_RSTRX)
		bw = 82;
		else
		bw = 80;

		if (dev->phy.is_40mhz)
		bw <<= 1;

		len = bw << 1;
		}

		/* TODO: buffer = kzalloc(len * sizeof(u32), GFP_KERNEL); */
		num = len;
		rot = (((freq * 36) / bw) << 16) / 100;
		angle = 0;

		for (i = 0; i < num; i++) {
		/* TODO */
		}

		/* TODO: Call N PHY Load Sample Table with buffer, num as arguments */
		/* TODO: kfree(buffer); */
		return num;
		}

		/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RunSamples */
		static void b43_nphy_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
		u16 wait, bool iqmode, bool dac_test)
		@@ -876,6 +913,20 @@ static void b43_nphy_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
		b43_phy_write(dev, B43_NPHY_RFSEQMODE, seq_mode);
		}

		/*
		* Transmits a known value for LO calibration
		* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TXTone
		*/
		static int b43_nphy_tx_tone(struct b43_wldev *dev, u32 freq, u16 max_val,
		bool iqmode, bool dac_test)
		{
		u16 samp = b43_nphy_gen_load_samples(dev, freq, max_val, dac_test);
		if (samp == 0)
		return -1;
		b43_nphy_run_samples(dev, samp, 0xFFFF, 0, iqmode, dac_test);
		return 0;
		}

		/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlCoefSetup */
		static void b43_nphy_tx_pwr_ctrl_coef_setup(struct b43_wldev *dev)
		{
		@@ -1969,8 +2020,7 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
		b43_nphy_run_samples(dev, (dev->phy.is_40mhz ? 40 : 20) * 8,
		0xFFFF, 0, true, false);
		else
		;/* TODO: Call N PHY TX Tone with freq, 250, 1, 0 as arguments
		and save result as error */
		error = b43_nphy_tx_tone(dev, freq, 250, true, false);

		if (error == 0) {
		if (nphy->mphase_cal_phase_id > 2) {
		@@ -2254,9 +2304,9 @@ static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev,
		b43_nphy_stop_playback(dev);

		if (playtone) {
		/* TODO: Call N PHY TX Tone with 4000,
		(nphy_rxcalparams & 0xffff), 0, 0
		as arguments and save result as ret */
		ret = b43_nphy_tx_tone(dev, 4000,
		(nphy->rxcalparams & 0xFFFF),
		false, false);
		playtone = false;
		} else {
		b43_nphy_run_samples(dev, 160, 0xFFFF, 0,