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b43: N-PHY: add huge calculating TX IQ LO
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki
John W. Linville
parent
e9762492f5
commit
fb43b8e235
@ -1434,6 +1434,232 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev)
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b43_nphy_rx_iq_coeffs(dev, true, rxcal_coeffs);
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}
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalTxIqlo */
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static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
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struct nphy_txgains target,
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bool full, bool mphase)
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{
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struct b43_phy_n *nphy = dev->phy.n;
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int i;
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int error = 0;
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int freq;
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bool avoid = false;
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u8 length;
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u16 tmp, core, type, count, max, numb, last, cmd;
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const u16 *table;
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bool phy6or5x;
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u16 buffer[11];
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u16 diq_start = 0;
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u16 save[2];
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u16 gain[2];
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struct nphy_iqcal_params params[2];
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bool updated[2] = { };
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b43_nphy_stay_in_carrier_search(dev, true);
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if (dev->phy.rev >= 4) {
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avoid = nphy->hang_avoid;
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nphy->hang_avoid = 0;
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}
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/* TODO: Read an N PHY Table with ID 7, length 2, offset 0x110,
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width 16, and data pointer save */
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for (i = 0; i < 2; i++) {
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b43_nphy_iq_cal_gain_params(dev, i, target, ¶ms[i]);
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gain[i] = params[i].cal_gain;
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}
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/* TODO: Write an N PHY Table with ID 7, length 2, offset 0x110,
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width 16, and data pointer gain */
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b43_nphy_tx_cal_radio_setup(dev);
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/* TODO: Call N PHY TX Cal PHY Setup */
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phy6or5x = dev->phy.rev >= 6 ||
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(dev->phy.rev == 5 && nphy->ipa2g_on &&
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b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ);
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if (phy6or5x) {
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/* TODO */
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}
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b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0x8AA9);
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if (1 /* FIXME: the band width is 20 MHz */)
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freq = 2500;
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else
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freq = 5000;
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if (nphy->mphase_cal_phase_id > 2)
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;/* TODO: Call N PHY Run Samples with (band width * 8),
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0xFFFF, 0, 1, 0 as arguments */
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else
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;/* TODO: Call N PHY TX Tone with freq, 250, 1, 0 as arguments
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and save result as error */
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if (error == 0) {
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if (nphy->mphase_cal_phase_id > 2) {
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table = nphy->mphase_txcal_bestcoeffs;
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length = 11;
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if (dev->phy.rev < 3)
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length -= 2;
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} else {
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if (!full && nphy->txiqlocal_coeffsvalid) {
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table = nphy->txiqlocal_bestc;
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length = 11;
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if (dev->phy.rev < 3)
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length -= 2;
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} else {
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full = true;
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if (dev->phy.rev >= 3) {
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table = tbl_tx_iqlo_cal_startcoefs_nphyrev3;
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length = B43_NTAB_TX_IQLO_CAL_STARTCOEFS_REV3;
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} else {
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table = tbl_tx_iqlo_cal_startcoefs;
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length = B43_NTAB_TX_IQLO_CAL_STARTCOEFS;
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}
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}
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}
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/* TODO: Write an N PHY Table with ID 15, length from above,
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offset 64, width 16, and the data pointer from above */
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if (full) {
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if (dev->phy.rev >= 3)
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max = B43_NTAB_TX_IQLO_CAL_CMDS_FULLCAL_REV3;
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else
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max = B43_NTAB_TX_IQLO_CAL_CMDS_FULLCAL;
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} else {
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if (dev->phy.rev >= 3)
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max = B43_NTAB_TX_IQLO_CAL_CMDS_RECAL_REV3;
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else
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max = B43_NTAB_TX_IQLO_CAL_CMDS_RECAL;
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}
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if (mphase) {
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count = nphy->mphase_txcal_cmdidx;
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numb = min(max,
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(u16)(count + nphy->mphase_txcal_numcmds));
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} else {
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count = 0;
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numb = max;
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}
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for (; count < numb; count++) {
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if (full) {
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if (dev->phy.rev >= 3)
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cmd = tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[count];
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else
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cmd = tbl_tx_iqlo_cal_cmds_fullcal[count];
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} else {
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if (dev->phy.rev >= 3)
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cmd = tbl_tx_iqlo_cal_cmds_recal_nphyrev3[count];
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else
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cmd = tbl_tx_iqlo_cal_cmds_recal[count];
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}
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core = (cmd & 0x3000) >> 12;
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type = (cmd & 0x0F00) >> 8;
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if (phy6or5x && updated[core] == 0) {
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b43_nphy_update_tx_cal_ladder(dev, core);
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updated[core] = 1;
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}
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tmp = (params[core].ncorr[type] << 8) | 0x66;
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b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDNNUM, tmp);
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if (type == 1 || type == 3 || type == 4) {
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/* TODO: Read an N PHY Table with ID 15,
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length 1, offset 69 + core,
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width 16, and data pointer buffer */
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diq_start = buffer[0];
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buffer[0] = 0;
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/* TODO: Write an N PHY Table with ID 15,
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length 1, offset 69 + core, width 16,
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and data of 0 */
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}
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b43_phy_write(dev, B43_NPHY_IQLOCAL_CMD, cmd);
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for (i = 0; i < 2000; i++) {
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tmp = b43_phy_read(dev, B43_NPHY_IQLOCAL_CMD);
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if (tmp & 0xC000)
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break;
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udelay(10);
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}
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/* TODO: Read an N PHY Table with ID 15,
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length table_length, offset 96, width 16,
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and data pointer buffer */
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/* TODO: Write an N PHY Table with ID 15,
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length table_length, offset 64, width 16,
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and data pointer buffer */
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if (type == 1 || type == 3 || type == 4)
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buffer[0] = diq_start;
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}
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if (mphase)
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nphy->mphase_txcal_cmdidx = (numb >= max) ? 0 : numb;
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last = (dev->phy.rev < 3) ? 6 : 7;
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if (!mphase || nphy->mphase_cal_phase_id == last) {
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/* TODO: Write an N PHY Table with ID 15, length 4,
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offset 96, width 16, and data pointer buffer */
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/* TODO: Read an N PHY Table with ID 15, length 4,
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offset 80, width 16, and data pointer buffer */
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if (dev->phy.rev < 3) {
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buffer[0] = 0;
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buffer[1] = 0;
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buffer[2] = 0;
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buffer[3] = 0;
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}
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/* TODO: Write an N PHY Table with ID 15, length 4,
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offset 88, width 16, and data pointer buffer */
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/* TODO: Read an N PHY Table with ID 15, length 2,
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offset 101, width 16, and data pointer buffer*/
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/* TODO: Write an N PHY Table with ID 15, length 2,
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offset 85, width 16, and data pointer buffer */
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/* TODO: Write an N PHY Table with ID 15, length 2,
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offset 93, width 16, and data pointer buffer */
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length = 11;
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if (dev->phy.rev < 3)
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length -= 2;
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/* TODO: Read an N PHY Table with ID 15, length length,
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offset 96, width 16, and data pointer
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nphy->txiqlocal_bestc */
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nphy->txiqlocal_coeffsvalid = true;
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/* TODO: Set nphy->txiqlocal_chanspec to
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the current channel */
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} else {
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length = 11;
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if (dev->phy.rev < 3)
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length -= 2;
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/* TODO: Read an N PHY Table with ID 5, length length,
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offset 96, width 16, and data pointer
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nphy->mphase_txcal_bestcoeffs */
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}
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/* TODO: Call N PHY Stop Playback */
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b43_phy_write(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0);
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}
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/* TODO: Call N PHY TX Cal PHY Cleanup */
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/* TODO: Write an N PHY Table with ID 7, length 2, offset 0x110,
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width 16, and data from save */
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if (dev->phy.rev < 2 && (!mphase || nphy->mphase_cal_phase_id == last))
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b43_nphy_tx_iq_workaround(dev);
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if (dev->phy.rev >= 4)
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nphy->hang_avoid = avoid;
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b43_nphy_stay_in_carrier_search(dev, false);
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return error;
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}
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/*
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* Init N-PHY
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* http://bcm-v4.sipsolutions.net/802.11/PHY/Init/N
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