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Commit 3c95627d authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
Browse files

b43: N-PHY: implement RSSI selection and offset scaling 



Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bbec398c

drivers/net/wireless/b43/phy_n.c

+121 −0
Original line number Diff line number Diff line
@@ -465,6 +465,127 @@ static void b43_nphy_bphy_init(struct b43_wldev *dev) 
	b43_phy_write(dev, B43_PHY_N_BMODE(0x38), 0x668);

}



/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/ScaleOffsetRssi */

static void b43_nphy_scale_offset_rssi(struct b43_wldev *dev, u16 scale,

				       s8 offset, u8 core, u8 rail, u8 type)

{

	u16 tmp;

	bool core1or5 = (core == 1) || (core == 5);

	bool core2or5 = (core == 2) || (core == 5);



	offset = clamp_val(offset, -32, 31);

	tmp = ((scale & 0x3F) << 8) | (offset & 0x3F);



	if (core1or5 && (rail == 0) && (type == 2))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_Z, tmp);

	if (core1or5 && (rail == 1) && (type == 2))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_Z, tmp);

	if (core2or5 && (rail == 0) && (type == 2))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_Z, tmp);

	if (core2or5 && (rail == 1) && (type == 2))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_Z, tmp);

	if (core1or5 && (rail == 0) && (type == 0))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_X, tmp);

	if (core1or5 && (rail == 1) && (type == 0))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_X, tmp);

	if (core2or5 && (rail == 0) && (type == 0))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_X, tmp);

	if (core2or5 && (rail == 1) && (type == 0))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_X, tmp);

	if (core1or5 && (rail == 0) && (type == 1))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_Y, tmp);

	if (core1or5 && (rail == 1) && (type == 1))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_Y, tmp);

	if (core2or5 && (rail == 0) && (type == 1))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_Y, tmp);

	if (core2or5 && (rail == 1) && (type == 1))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_Y, tmp);

	if (core1or5 && (rail == 0) && (type == 6))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_TBD, tmp);

	if (core1or5 && (rail == 1) && (type == 6))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_TBD, tmp);

	if (core2or5 && (rail == 0) && (type == 6))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_TBD, tmp);

	if (core2or5 && (rail == 1) && (type == 6))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_TBD, tmp);

	if (core1or5 && (rail == 0) && (type == 3))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_PWRDET, tmp);

	if (core1or5 && (rail == 1) && (type == 3))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_PWRDET, tmp);

	if (core2or5 && (rail == 0) && (type == 3))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_PWRDET, tmp);

	if (core2or5 && (rail == 1) && (type == 3))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_PWRDET, tmp);

	if (core1or5 && (type == 4))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0I_TSSI, tmp);

	if (core2or5 && (type == 4))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1I_TSSI, tmp);

	if (core1or5 && (type == 5))

		b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_TSSI, tmp);

	if (core2or5 && (type == 5))

		b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_TSSI, tmp);

}



/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSISel */

static void b43_nphy_rssi_select(struct b43_wldev *dev, u8 code, u8 type)

{

	u16 val;



	if (dev->phy.rev >= 3) {

		/* TODO */

	} else {

		if (type < 3)

			val = 0;

		else if (type == 6)

			val = 1;

		else if (type == 3)

			val = 2;

		else

			val = 3;



		val = (val << 12) | (val << 14);

		b43_phy_maskset(dev, B43_NPHY_AFECTL_C1, 0x0FFF, val);

		b43_phy_maskset(dev, B43_NPHY_AFECTL_C2, 0x0FFF, val);



		if (type < 3) {

			b43_phy_maskset(dev, B43_NPHY_RFCTL_RSSIO1, 0xFFCF,

					(type + 1) << 4);

			b43_phy_maskset(dev, B43_NPHY_RFCTL_RSSIO2, 0xFFCF,

					(type + 1) << 4);

		}



		/* TODO use some definitions */

		if (code == 0) {

			b43_phy_maskset(dev, B43_NPHY_AFECTL_OVER, 0xCFFF, 0);

			if (type < 3) {

				b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,

						0xFEC7, 0);

				b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,

						0xEFDC, 0);

				b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,

						0xFFFE, 0);

				udelay(20);

				b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,

						0xFFFE, 0);

			}

		} else {

			b43_phy_maskset(dev, B43_NPHY_AFECTL_OVER, 0xCFFF,

					0x3000);

			if (type < 3) {

				b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,

						0xFEC7, 0x0180);

				b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,

						0xEFDC, (code << 1 | 0x1021));

				b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,

						0xFFFE, 0x0001);

				udelay(20);

				b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,

						0xFFFE, 0);

			}

		}

	}

}



/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSICal */

static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type)

{