Commit fb43b8e2 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville

b43: N-PHY: add huge calculating TX IQ LO

Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e9762492
......@@ -1434,6 +1434,232 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev)
b43_nphy_rx_iq_coeffs(dev, true, rxcal_coeffs);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalTxIqlo */
static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
struct nphy_txgains target,
bool full, bool mphase)
{
struct b43_phy_n *nphy = dev->phy.n;
int i;
int error = 0;
int freq;
bool avoid = false;
u8 length;
u16 tmp, core, type, count, max, numb, last, cmd;
const u16 *table;
bool phy6or5x;
u16 buffer[11];
u16 diq_start = 0;
u16 save[2];
u16 gain[2];
struct nphy_iqcal_params params[2];
bool updated[2] = { };
b43_nphy_stay_in_carrier_search(dev, true);
if (dev->phy.rev >= 4) {
avoid = nphy->hang_avoid;
nphy->hang_avoid = 0;
}
/* TODO: Read an N PHY Table with ID 7, length 2, offset 0x110,
width 16, and data pointer save */
for (i = 0; i < 2; i++) {
b43_nphy_iq_cal_gain_params(dev, i, target, &params[i]);
gain[i] = params[i].cal_gain;
}
/* TODO: Write an N PHY Table with ID 7, length 2, offset 0x110,
width 16, and data pointer gain */
b43_nphy_tx_cal_radio_setup(dev);
/* TODO: Call N PHY TX Cal PHY Setup */
phy6or5x = dev->phy.rev >= 6 ||
(dev->phy.rev == 5 && nphy->ipa2g_on &&
b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ);
if (phy6or5x) {
/* TODO */
}
b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0x8AA9);
if (1 /* FIXME: the band width is 20 MHz */)
freq = 2500;
else
freq = 5000;
if (nphy->mphase_cal_phase_id > 2)
;/* TODO: Call N PHY Run Samples with (band width * 8),
0xFFFF, 0, 1, 0 as arguments */
else
;/* TODO: Call N PHY TX Tone with freq, 250, 1, 0 as arguments
and save result as error */
if (error == 0) {
if (nphy->mphase_cal_phase_id > 2) {
table = nphy->mphase_txcal_bestcoeffs;
length = 11;
if (dev->phy.rev < 3)
length -= 2;
} else {
if (!full && nphy->txiqlocal_coeffsvalid) {
table = nphy->txiqlocal_bestc;
length = 11;
if (dev->phy.rev < 3)
length -= 2;
} else {
full = true;
if (dev->phy.rev >= 3) {
table = tbl_tx_iqlo_cal_startcoefs_nphyrev3;
length = B43_NTAB_TX_IQLO_CAL_STARTCOEFS_REV3;
} else {
table = tbl_tx_iqlo_cal_startcoefs;
length = B43_NTAB_TX_IQLO_CAL_STARTCOEFS;
}
}
}
/* TODO: Write an N PHY Table with ID 15, length from above,
offset 64, width 16, and the data pointer from above */
if (full) {
if (dev->phy.rev >= 3)
max = B43_NTAB_TX_IQLO_CAL_CMDS_FULLCAL_REV3;
else
max = B43_NTAB_TX_IQLO_CAL_CMDS_FULLCAL;
} else {
if (dev->phy.rev >= 3)
max = B43_NTAB_TX_IQLO_CAL_CMDS_RECAL_REV3;
else
max = B43_NTAB_TX_IQLO_CAL_CMDS_RECAL;
}
if (mphase) {
count = nphy->mphase_txcal_cmdidx;
numb = min(max,
(u16)(count + nphy->mphase_txcal_numcmds));
} else {
count = 0;
numb = max;
}
for (; count < numb; count++) {
if (full) {
if (dev->phy.rev >= 3)
cmd = tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[count];
else
cmd = tbl_tx_iqlo_cal_cmds_fullcal[count];
} else {
if (dev->phy.rev >= 3)
cmd = tbl_tx_iqlo_cal_cmds_recal_nphyrev3[count];
else
cmd = tbl_tx_iqlo_cal_cmds_recal[count];
}
core = (cmd & 0x3000) >> 12;
type = (cmd & 0x0F00) >> 8;
if (phy6or5x && updated[core] == 0) {
b43_nphy_update_tx_cal_ladder(dev, core);
updated[core] = 1;
}
tmp = (params[core].ncorr[type] << 8) | 0x66;
b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDNNUM, tmp);
if (type == 1 || type == 3 || type == 4) {
/* TODO: Read an N PHY Table with ID 15,
length 1, offset 69 + core,
width 16, and data pointer buffer */
diq_start = buffer[0];
buffer[0] = 0;
/* TODO: Write an N PHY Table with ID 15,
length 1, offset 69 + core, width 16,
and data of 0 */
}
b43_phy_write(dev, B43_NPHY_IQLOCAL_CMD, cmd);
for (i = 0; i < 2000; i++) {
tmp = b43_phy_read(dev, B43_NPHY_IQLOCAL_CMD);
if (tmp & 0xC000)
break;
udelay(10);
}
/* TODO: Read an N PHY Table with ID 15,
length table_length, offset 96, width 16,
and data pointer buffer */
/* TODO: Write an N PHY Table with ID 15,
length table_length, offset 64, width 16,
and data pointer buffer */
if (type == 1 || type == 3 || type == 4)
buffer[0] = diq_start;
}
if (mphase)
nphy->mphase_txcal_cmdidx = (numb >= max) ? 0 : numb;
last = (dev->phy.rev < 3) ? 6 : 7;
if (!mphase || nphy->mphase_cal_phase_id == last) {
/* TODO: Write an N PHY Table with ID 15, length 4,
offset 96, width 16, and data pointer buffer */
/* TODO: Read an N PHY Table with ID 15, length 4,
offset 80, width 16, and data pointer buffer */
if (dev->phy.rev < 3) {
buffer[0] = 0;
buffer[1] = 0;
buffer[2] = 0;
buffer[3] = 0;
}
/* TODO: Write an N PHY Table with ID 15, length 4,
offset 88, width 16, and data pointer buffer */
/* TODO: Read an N PHY Table with ID 15, length 2,
offset 101, width 16, and data pointer buffer*/
/* TODO: Write an N PHY Table with ID 15, length 2,
offset 85, width 16, and data pointer buffer */
/* TODO: Write an N PHY Table with ID 15, length 2,
offset 93, width 16, and data pointer buffer */
length = 11;
if (dev->phy.rev < 3)
length -= 2;
/* TODO: Read an N PHY Table with ID 15, length length,
offset 96, width 16, and data pointer
nphy->txiqlocal_bestc */
nphy->txiqlocal_coeffsvalid = true;
/* TODO: Set nphy->txiqlocal_chanspec to
the current channel */
} else {
length = 11;
if (dev->phy.rev < 3)
length -= 2;
/* TODO: Read an N PHY Table with ID 5, length length,
offset 96, width 16, and data pointer
nphy->mphase_txcal_bestcoeffs */
}
/* TODO: Call N PHY Stop Playback */
b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0);
}
/* TODO: Call N PHY TX Cal PHY Cleanup */
/* TODO: Write an N PHY Table with ID 7, length 2, offset 0x110,
width 16, and data from save */
if (dev->phy.rev < 2 && (!mphase || nphy->mphase_cal_phase_id == last))
b43_nphy_tx_iq_workaround(dev);
if (dev->phy.rev >= 4)
nphy->hang_avoid = avoid;
b43_nphy_stay_in_carrier_search(dev, false);
return error;
}
/*
* Init N-PHY
* http://bcm-v4.sipsolutions.net/802.11/PHY/Init/N
......
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