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Commit e9762492 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
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b43: N-PHY: implement calculating IQ gain params 



Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent de7ed0c6

drivers/net/wireless/b43/phy_n.c

+38 −0
Original line number Diff line number Diff line
@@ -1216,6 +1216,44 @@ static void b43_nphy_tx_cal_radio_setup(struct b43_wldev *dev) 
	}

}



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

static void b43_nphy_iq_cal_gain_params(struct b43_wldev *dev, u16 core,

					struct nphy_txgains target,

					struct nphy_iqcal_params *params)

{

	int i, j, indx;

	u16 gain;



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

		params->txgm = target.txgm[core];

		params->pga = target.pga[core];

		params->pad = target.pad[core];

		params->ipa = target.ipa[core];

		params->cal_gain = (params->txgm << 12) | (params->pga << 8) |

					(params->pad << 4) | (params->ipa);

		for (j = 0; j < 5; j++)

			params->ncorr[j] = 0x79;

	} else {

		gain = (target.pad[core]) | (target.pga[core] << 4) |

			(target.txgm[core] << 8);



		indx = (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) ?

			1 : 0;

		for (i = 0; i < 9; i++)

			if (tbl_iqcal_gainparams[indx][i][0] == gain)

				break;

		i = min(i, 8);



		params->txgm = tbl_iqcal_gainparams[indx][i][1];

		params->pga = tbl_iqcal_gainparams[indx][i][2];

		params->pad = tbl_iqcal_gainparams[indx][i][3];

		params->cal_gain = (params->txgm << 7) | (params->pga << 4) |

					(params->pad << 2);

		for (j = 0; j < 4; j++)

			params->ncorr[j] = tbl_iqcal_gainparams[indx][i][4 + j];

	}

}



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

static void b43_nphy_update_tx_cal_ladder(struct b43_wldev *dev, u16 core)

{