leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

b43: N-PHY: implement calculating IQ gain params

Browse Source 
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2010-01-15 16:08:25 +01:00 committed by John W. Linville
parent de7ed0c624
commit e9762492f5
1 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/net/wireless/b43/phy_n.c
View File

@ -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)
{