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-rw-r--r--drivers/net/wireless/b43/phy_n.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 8a3bc2c58a8..4111a462600 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 03:56:03 +0000