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b43: N-PHY: implement getting TX gains

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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 15:40:50 +01:00 committed by John W. Linville
parent 34a56f2cae
commit b0022e15cc
1 changed files with 85 additions and 2 deletions
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87
drivers/net/wireless/b43/phy_n.c
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@ -1151,6 +1151,89 @@ static const u32 *b43_nphy_get_ipa_gain_table(struct b43_wldev *dev)
} }
} }
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/GetTxGain */
static struct nphy_txgains b43_nphy_get_tx_gains(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u16 curr_gain[2];
struct nphy_txgains target;
const u32 *table = NULL;
if (nphy->txpwrctrl == 0) {
int i;
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, true);
/* TODO: Read an N PHY Table with ID 7, length 2,
offset 0x110, width 16, and curr_gain */
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, false);
for (i = 0; i < 2; ++i) {
if (dev->phy.rev >= 3) {
target.ipa[i] = curr_gain[i] & 0x000F;
target.pad[i] = (curr_gain[i] & 0x00F0) >> 4;
target.pga[i] = (curr_gain[i] & 0x0F00) >> 8;
target.txgm[i] = (curr_gain[i] & 0x7000) >> 12;
} else {
target.ipa[i] = curr_gain[i] & 0x0003;
target.pad[i] = (curr_gain[i] & 0x000C) >> 2;
target.pga[i] = (curr_gain[i] & 0x0070) >> 4;
target.txgm[i] = (curr_gain[i] & 0x0380) >> 7;
}
}
} else {
int i;
u16 index[2];
index[0] = (b43_phy_read(dev, B43_NPHY_C1_TXPCTL_STAT) &
B43_NPHY_TXPCTL_STAT_BIDX) >>
B43_NPHY_TXPCTL_STAT_BIDX_SHIFT;
index[1] = (b43_phy_read(dev, B43_NPHY_C2_TXPCTL_STAT) &
B43_NPHY_TXPCTL_STAT_BIDX) >>
B43_NPHY_TXPCTL_STAT_BIDX_SHIFT;
for (i = 0; i < 2; ++i) {
if (dev->phy.rev >= 3) {
enum ieee80211_band band =
b43_current_band(dev->wl);
if ((nphy->ipa2g_on &&
band == IEEE80211_BAND_2GHZ) ||
(nphy->ipa5g_on &&
band == IEEE80211_BAND_5GHZ)) {
table = b43_nphy_get_ipa_gain_table(dev);
} else {
if (band == IEEE80211_BAND_5GHZ) {
if (dev->phy.rev == 3)
table = b43_ntab_tx_gain_rev3_5ghz;
else if (dev->phy.rev == 4)
table = b43_ntab_tx_gain_rev4_5ghz;
else
table = b43_ntab_tx_gain_rev5plus_5ghz;
} else {
table = b43_ntab_tx_gain_rev3plus_2ghz;
}
}
target.ipa[i] = (table[index[i]] >> 16) & 0xF;
target.pad[i] = (table[index[i]] >> 20) & 0xF;
target.pga[i] = (table[index[i]] >> 24) & 0xF;
target.txgm[i] = (table[index[i]] >> 28) & 0xF;
} else {
table = b43_ntab_tx_gain_rev0_1_2;
target.ipa[i] = (table[index[i]] >> 16) & 0x3;
target.pad[i] = (table[index[i]] >> 18) & 0x3;
target.pga[i] = (table[index[i]] >> 20) & 0x7;
target.txgm[i] = (table[index[i]] >> 23) & 0x7;
}
}
}
return target;
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal */ /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal */
static void b43_nphy_restore_cal(struct b43_wldev *dev) static void b43_nphy_restore_cal(struct b43_wldev *dev)
{ {
@ -1376,7 +1459,7 @@ int b43_phy_initn(struct b43_wldev *dev)
do_cal = false; do_cal = false;
if (do_cal) { if (do_cal) {
/* target = b43_nphy_get_tx_gains(dev); */ target = b43_nphy_get_tx_gains(dev);
if (nphy->antsel_type == 2) if (nphy->antsel_type == 2)
;/*TODO NPHY Superswitch Init with argument 1*/ ;/*TODO NPHY Superswitch Init with argument 1*/
@ -1388,7 +1471,7 @@ int b43_phy_initn(struct b43_wldev *dev)
nphy->cal_orig_pwr_idx[1] = nphy->cal_orig_pwr_idx[1] =
nphy->txpwrindex[1].index_internal; nphy->txpwrindex[1].index_internal;
/* TODO N PHY Pre Calibrate TX Gain */ /* TODO N PHY Pre Calibrate TX Gain */
/*target = b43_nphy_get_tx_gains(dev)*/ target = b43_nphy_get_tx_gains(dev);
} }
} }
} }