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b43: N-PHY: implement very basic TX power control management 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Rafał Miłecki 2010-11-28 12:59:43 +01:00 committed by John W. Linville
parent 40277cabfe
commit 161d540c8e
2 changed files with 153 additions and 8 deletions
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159
drivers/net/wireless/b43/phy_n.c
View File

@ -67,6 +67,8 @@ enum b43_nphy_rf_sequence {
B43_RFSEQ_UPDATE_GAINU,
};
static void b43_nphy_stay_in_carrier_search(struct b43_wldev *dev,
bool enable);
static void b43_nphy_set_rf_sequence(struct b43_wldev *dev, u8 cmd,
u8 *events, u8 *delays, u8 length);
static void b43_nphy_force_rf_sequence(struct b43_wldev *dev,
@ -145,9 +147,153 @@ static void b43_chantab_phy_upload(struct b43_wldev *dev,
b43_phy_write(dev, B43_NPHY_BW6, e->phy_bw6);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlEnable */
static void b43_nphy_tx_power_ctrl(struct b43_wldev *dev, bool enable)
{
struct b43_phy_n *nphy = dev->phy.n;
u8 i;
u16 tmp;
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
nphy->txpwrctrl = enable;
if (!enable) {
if (dev->phy.rev >= 3)
; /* TODO */
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x6840);
for (i = 0; i < 84; i++)
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, 0);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x6C40);
for (i = 0; i < 84; i++)
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, 0);
tmp = B43_NPHY_TXPCTL_CMD_COEFF | B43_NPHY_TXPCTL_CMD_HWPCTLEN;
if (dev->phy.rev >= 3)
tmp |= B43_NPHY_TXPCTL_CMD_PCTLEN;
b43_phy_mask(dev, B43_NPHY_TXPCTL_CMD, ~tmp);
if (dev->phy.rev >= 3) {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x0100);
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0100);
} else {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x4000);
}
if (dev->phy.rev == 2)
b43_phy_maskset(dev, B43_NPHY_BPHY_CTL3,
~B43_NPHY_BPHY_CTL3_SCALE, 0x53);
else if (dev->phy.rev < 2)
b43_phy_maskset(dev, B43_NPHY_BPHY_CTL3,
~B43_NPHY_BPHY_CTL3_SCALE, 0x5A);
if (dev->phy.rev < 2 && 0)
; /* TODO */
} else {
b43err(dev->wl, "enabling tx pwr ctrl not implemented yet\n");
}
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrFix */
static void b43_nphy_tx_power_fix(struct b43_wldev *dev)
{
//TODO
struct b43_phy_n *nphy = dev->phy.n;
struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
u8 txpi[2], bbmult, i;
u16 tmp, radio_gain, dac_gain;
u16 freq = dev->phy.channel_freq;
u32 txgain;
/* u32 gaintbl; rev3+ */
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
if (dev->phy.rev >= 3) {
txpi[0] = 40;
txpi[1] = 40;
} else if (sprom->revision < 4) {
txpi[0] = 72;
txpi[1] = 72;
} else {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
txpi[0] = sprom->txpid2g[0];
txpi[1] = sprom->txpid2g[1];
} else if (freq >= 4900 && freq < 5100) {
txpi[0] = sprom->txpid5gl[0];
txpi[1] = sprom->txpid5gl[1];
} else if (freq >= 5100 && freq < 5500) {
txpi[0] = sprom->txpid5g[0];
txpi[1] = sprom->txpid5g[1];
} else if (freq >= 5500) {
txpi[0] = sprom->txpid5gh[0];
txpi[1] = sprom->txpid5gh[1];
} else {
txpi[0] = 91;
txpi[1] = 91;
}
}
/*
for (i = 0; i < 2; i++) {
nphy->txpwrindex[i].index_internal = txpi[i];
nphy->txpwrindex[i].index_internal_save = txpi[i];
}
*/
for (i = 0; i < 2; i++) {
if (dev->phy.rev >= 3) {
/* TODO */
radio_gain = (txgain >> 16) & 0x1FFFF;
} else {
txgain = b43_ntab_tx_gain_rev0_1_2[txpi[i]];
radio_gain = (txgain >> 16) & 0x1FFF;
}
dac_gain = (txgain >> 8) & 0x3F;
bbmult = txgain & 0xFF;
if (dev->phy.rev >= 3) {
if (i == 0)
b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x0100);
else
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0100);
} else {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x4000);
}
if (i == 0)
b43_phy_write(dev, B43_NPHY_AFECTL_DACGAIN1, dac_gain);
else
b43_phy_write(dev, B43_NPHY_AFECTL_DACGAIN2, dac_gain);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x1D10 + i);
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, radio_gain);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C57);
tmp = b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
if (i == 0)
tmp = (tmp & 0x00FF) | (bbmult << 8);
else
tmp = (tmp & 0xFF00) | bbmult;
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C57);
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, tmp);
if (0)
; /* TODO */
}
b43_phy_mask(dev, B43_NPHY_BPHY_CTL2, ~B43_NPHY_BPHY_CTL2_LUT);
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
}
@ -2351,7 +2497,7 @@ static struct nphy_txgains b43_nphy_get_tx_gains(struct b43_wldev *dev)
struct nphy_txgains target;
const u32 *table = NULL;
if (nphy->txpwrctrl == 0) {
if (!nphy->txpwrctrl) {
int i;
if (nphy->hang_avoid)
@ -3260,9 +3406,8 @@ int b43_phy_initn(struct b43_wldev *dev)
b43_nphy_bphy_init(dev);
tx_pwr_state = nphy->txpwrctrl;
/* TODO N PHY TX power control with argument 0
(turning off power control) */
/* TODO Fix the TX Power Settings */
b43_nphy_tx_power_ctrl(dev, false);
b43_nphy_tx_power_fix(dev);
/* TODO N PHY TX Power Control Idle TSSI */
/* TODO N PHY TX Power Control Setup */
@ -3333,7 +3478,7 @@ int b43_phy_initn(struct b43_wldev *dev)
}
b43_nphy_tx_pwr_ctrl_coef_setup(dev);
/* TODO N PHY TX Power Control Enable with argument tx_pwr_state */
b43_nphy_tx_power_ctrl(dev, tx_pwr_state);
b43_phy_write(dev, B43_NPHY_TXMACIF_HOLDOFF, 0x0015);
b43_phy_write(dev, B43_NPHY_TXMACDELAY, 0x0320);
if (phy->rev >= 3 && phy->rev <= 6)
@ -3384,7 +3529,7 @@ static void b43_nphy_channel_setup(struct b43_wldev *dev,
b43_phy_mask(dev, B43_PHY_B_TEST, ~0x840);
}
if (nphy->txpwrctrl)
if (!nphy->txpwrctrl)
b43_nphy_tx_power_fix(dev);
if (dev->phy.rev < 3)

2
drivers/net/wireless/b43/phy_n.h
View File

@ -782,7 +782,7 @@ struct b43_phy_n {
u16 mphase_txcal_numcmds;
u16 mphase_txcal_bestcoeffs[11];
u8 txpwrctrl;
bool txpwrctrl;
u16 txcal_bbmult;
u16 txiqlocal_bestc[11];
bool txiqlocal_coeffsvalid;