[PATCH 12/13] b43: HT-PHY: setup TX power control
Rafał Miłecki
zajec5 at gmail.com
Thu Mar 7 10:47:26 EST 2013
Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
---
drivers/net/wireless/b43/phy_ht.c | 109 +++++++++++++++++++++++++++++++++++++
drivers/net/wireless/b43/phy_ht.h | 25 +++++++++
2 files changed, 134 insertions(+)
diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c
index 831dca4..6d5eb04 100644
--- a/drivers/net/wireless/b43/phy_ht.c
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -557,6 +557,114 @@ static void b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
/* TODO */
}
+
+static void b43_phy_ht_tx_power_ctl_setup(struct b43_wldev *dev)
+{
+ struct b43_phy_ht *phy_ht = dev->phy.ht;
+ struct ssb_sprom *sprom = dev->dev->bus_sprom;
+
+ u8 *idle = phy_ht->idle_tssi;
+ u8 target[3];
+ s16 a1[3], b0[3], b1[3];
+
+ u16 freq = dev->phy.channel_freq;
+ int i, c;
+
+ if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+ for (c = 0; c < 3; c++) {
+ target[c] = sprom->core_pwr_info[c].maxpwr_2g;
+ a1[c] = sprom->core_pwr_info[c].pa_2g[0];
+ b0[c] = sprom->core_pwr_info[c].pa_2g[1];
+ b1[c] = sprom->core_pwr_info[c].pa_2g[2];
+ }
+ } else if (freq >= 4900 && freq < 5100) {
+ for (c = 0; c < 3; c++) {
+ target[c] = sprom->core_pwr_info[c].maxpwr_5gl;
+ a1[c] = sprom->core_pwr_info[c].pa_5gl[0];
+ b0[c] = sprom->core_pwr_info[c].pa_5gl[1];
+ b1[c] = sprom->core_pwr_info[c].pa_5gl[2];
+ }
+ } else if (freq >= 5100 && freq < 5500) {
+ for (c = 0; c < 3; c++) {
+ target[c] = sprom->core_pwr_info[c].maxpwr_5g;
+ a1[c] = sprom->core_pwr_info[c].pa_5g[0];
+ b0[c] = sprom->core_pwr_info[c].pa_5g[1];
+ b1[c] = sprom->core_pwr_info[c].pa_5g[2];
+ }
+ } else if (freq >= 5500) {
+ for (c = 0; c < 3; c++) {
+ target[c] = sprom->core_pwr_info[c].maxpwr_5gh;
+ a1[c] = sprom->core_pwr_info[c].pa_5gh[0];
+ b0[c] = sprom->core_pwr_info[c].pa_5gh[1];
+ b1[c] = sprom->core_pwr_info[c].pa_5gh[2];
+ }
+ } else {
+ target[0] = target[1] = target[2] = 52;
+ a1[0] = a1[1] = a1[2] = -424;
+ b0[0] = b0[1] = b0[2] = 5612;
+ b1[0] = b1[1] = b1[2] = -1393;
+ }
+
+ b43_phy_set(dev, B43_PHY_HT_TSSIMODE, B43_PHY_HT_TSSIMODE_EN);
+ b43_phy_mask(dev, B43_PHY_HT_TXPCTL_CMD_C1,
+ ~B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN & 0xFFFF);
+
+ /* TODO: Does it depend on sprom->fem.ghz2.tssipos? */
+ b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI, 0x4000);
+
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1,
+ ~B43_PHY_HT_TXPCTL_CMD_C1_INIT, 0x19);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C2,
+ ~B43_PHY_HT_TXPCTL_CMD_C2_INIT, 0x19);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C3,
+ ~B43_PHY_HT_TXPCTL_CMD_C3_INIT, 0x19);
+
+ b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
+ B43_PHY_HT_TXPCTL_IDLE_TSSI_BINF);
+
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
+ ~B43_PHY_HT_TXPCTL_IDLE_TSSI_C1,
+ idle[0] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C1_SHIFT);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
+ ~B43_PHY_HT_TXPCTL_IDLE_TSSI_C2,
+ idle[1] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C2_SHIFT);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI2,
+ ~B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3,
+ idle[2] << B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3_SHIFT);
+
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_TSSID,
+ 0xf0);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_NPTIL2,
+ 0x3 << B43_PHY_HT_TXPCTL_N_NPTIL2_SHIFT);
+#if 0
+ /* TODO: what to mask/set? */
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x800, 0)
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x400, 0)
+#endif
+
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
+ ~B43_PHY_HT_TXPCTL_TARG_PWR_C1,
+ target[0] << B43_PHY_HT_TXPCTL_TARG_PWR_C1_SHIFT);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
+ ~B43_PHY_HT_TXPCTL_TARG_PWR_C2 & 0xFFFF,
+ target[1] << B43_PHY_HT_TXPCTL_TARG_PWR_C2_SHIFT);
+ b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR2,
+ ~B43_PHY_HT_TXPCTL_TARG_PWR2_C3,
+ target[2] << B43_PHY_HT_TXPCTL_TARG_PWR2_C3_SHIFT);
+
+ for (c = 0; c < 3; c++) {
+ s32 num, den, pwr;
+ u32 regval[64];
+
+ for (i = 0; i < 64; i++) {
+ num = 8 * (16 * b0[c] + b1[c] * i);
+ den = 32768 + a1[c] * i;
+ pwr = max((4 * num + den / 2) / den, -8);
+ regval[i] = pwr;
+ }
+ b43_httab_write_bulk(dev, B43_HTTAB16(26 + c, 0), 64, regval);
+ }
+}
#endif
/**************************************************
@@ -844,6 +952,7 @@ static int b43_phy_ht_op_init(struct b43_wldev *dev)
#if 0
b43_phy_ht_tx_power_ctl(dev, false);
b43_phy_ht_tx_power_ctl_idle_tssi(dev);
+ b43_phy_ht_tx_power_ctl_setup(dev);
/* TODO */
b43_phy_ht_tx_power_ctl(dev, saved_tx_pwr_ctl);
#endif
diff --git a/drivers/net/wireless/b43/phy_ht.h b/drivers/net/wireless/b43/phy_ht.h
index 165c501..9b2408e 100644
--- a/drivers/net/wireless/b43/phy_ht.h
+++ b/drivers/net/wireless/b43/phy_ht.h
@@ -23,6 +23,9 @@
#define B43_PHY_HT_SAMP_WAIT_CNT 0x0C5 /* Sample wait count */
#define B43_PHY_HT_SAMP_DEP_CNT 0x0C6 /* Sample depth count */
#define B43_PHY_HT_SAMP_STAT 0x0C7 /* Sample status */
+#define B43_PHY_HT_TSSIMODE 0x122 /* TSSI mode */
+#define B43_PHY_HT_TSSIMODE_EN 0x0001 /* TSSI enable */
+#define B43_PHY_HT_TSSIMODE_PDEN 0x0002 /* Power det enable */
#define B43_PHY_HT_BW1 0x1CE
#define B43_PHY_HT_BW2 0x1CF
#define B43_PHY_HT_BW3 0x1D0
@@ -34,6 +37,22 @@
#define B43_PHY_HT_TXPCTL_CMD_C1_COEFF 0x2000 /* Power control coefficients */
#define B43_PHY_HT_TXPCTL_CMD_C1_HWPCTLEN 0x4000 /* Hardware TX power control enable */
#define B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN 0x8000 /* TX power control enable */
+#define B43_PHY_HT_TXPCTL_N 0x1E8 /* TX power control N num */
+#define B43_PHY_HT_TXPCTL_N_TSSID 0x00FF /* N TSSI delay */
+#define B43_PHY_HT_TXPCTL_N_TSSID_SHIFT 0
+#define B43_PHY_HT_TXPCTL_N_NPTIL2 0x0700 /* N PT integer log2 */
+#define B43_PHY_HT_TXPCTL_N_NPTIL2_SHIFT 8
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI 0x1E9 /* TX power control idle TSSI */
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI_C1 0x003F
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI_C1_SHIFT 0
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI_C2 0x3F00
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI_C2_SHIFT 8
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI_BINF 0x8000 /* Raw TSSI offset bin format */
+#define B43_PHY_HT_TXPCTL_TARG_PWR 0x1EA /* TX power control target power */
+#define B43_PHY_HT_TXPCTL_TARG_PWR_C1 0x00FF /* Power 0 */
+#define B43_PHY_HT_TXPCTL_TARG_PWR_C1_SHIFT 0
+#define B43_PHY_HT_TXPCTL_TARG_PWR_C2 0xFF00 /* Power 1 */
+#define B43_PHY_HT_TXPCTL_TARG_PWR_C2_SHIFT 8
#define B43_PHY_HT_TXPCTL_CMD_C2 0x222
#define B43_PHY_HT_TXPCTL_CMD_C2_INIT 0x007F
#define B43_PHY_HT_RSSI_C1 0x219
@@ -72,6 +91,12 @@
#define B43_PHY_HT_TXPCTL_CMD_C3 B43_PHY_EXTG(0x164)
#define B43_PHY_HT_TXPCTL_CMD_C3_INIT 0x007F
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI2 B43_PHY_EXTG(0x165) /* TX power control idle TSSI */
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3 0x003F
+#define B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3_SHIFT 0
+#define B43_PHY_HT_TXPCTL_TARG_PWR2 B43_PHY_EXTG(0x166) /* TX power control target power */
+#define B43_PHY_HT_TXPCTL_TARG_PWR2_C3 0x00FF
+#define B43_PHY_HT_TXPCTL_TARG_PWR2_C3_SHIFT 0
#define B43_PHY_HT_TEST B43_PHY_N_BMODE(0x00A)
--
1.7.10.4
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