From: Rafał Miłecki <zajec5@gmail.com>
Date: Thu, 31 Jul 2014 19:59:46 +0000 (+0200)
Subject: b43: N-PHY: add RF power tables for radio 0x2057 revs 9 & 14
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a68c356bcf1e76ae649e929db5e4cea9e6bdcd65;p=openwrt%2Fstaging%2Fblogic.git

b43: N-PHY: add RF power tables for radio 0x2057 revs 9 & 14

Don't write them as we don't have gains configured correctly yet.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index df640325aa15..57a3ab2ac4dc 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -4235,8 +4235,9 @@ static void b43_nphy_tx_gain_table_upload(struct b43_wldev *dev)
 
 	const u32 *table = NULL;
 	u32 rfpwr_offset;
-	u8 pga_gain;
+	u8 pga_gain, pad_gain;
 	int i;
+	const s16 *uninitialized_var(rf_pwr_offset_table);
 
 	table = b43_nphy_get_tx_gain_table(dev);
 	if (!table)
@@ -4252,13 +4253,27 @@ static void b43_nphy_tx_gain_table_upload(struct b43_wldev *dev)
 	nphy->gmval = (table[0] >> 16) & 0x7000;
 #endif
 
+	if (phy->rev >= 19) {
+		return;
+	} else if (phy->rev >= 7) {
+		rf_pwr_offset_table = b43_ntab_get_rf_pwr_offset_table(dev);
+		if (!rf_pwr_offset_table)
+			return;
+		/* TODO: Enable this once we have gains configured */
+		return;
+	}
+
 	for (i = 0; i < 128; i++) {
 		if (phy->rev >= 19) {
 			/* TODO */
 			return;
 		} else if (phy->rev >= 7) {
-			/* TODO */
-			return;
+			pga_gain = (table[i] >> 24) & 0xf;
+			pad_gain = (table[i] >> 19) & 0x1f;
+			if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
+				rfpwr_offset = rf_pwr_offset_table[pad_gain];
+			else
+				rfpwr_offset = rf_pwr_offset_table[pga_gain];
 		} else {
 			pga_gain = (table[i] >> 24) & 0xF;
 			if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
diff --git a/drivers/net/wireless/b43/tables_nphy.c b/drivers/net/wireless/b43/tables_nphy.c
index f449cffc697b..25d1cbd34306 100644
--- a/drivers/net/wireless/b43/tables_nphy.c
+++ b/drivers/net/wireless/b43/tables_nphy.c
@@ -2878,6 +2878,40 @@ const s8 b43_ntab_papd_pga_gain_delta_ipa_2g[] = {
 	-54, -46, -39, -31, -23, -15, -8, 0
 };
 
+/* Extracted from MMIO dump of 6.30.223.248
+ * Entries: 0, 15, 17, 21, 24, 26, 27, 29, 30 were guessed
+ */
+static const s16 b43_ntab_rf_pwr_offset_2057_rev9_2g[] = {
+	-133, -133, -107, -92, -81,
+	-73, -66, -61, -56, -52,
+	-48, -44, -41, -37, -34,
+	-31, -28, -25, -22, -19,
+	-17, -14, -12, -10, -9,
+	-7, -5, -4, -3, -2,
+	-1, 0,
+};
+
+/* Extracted from MMIO dump of 6.30.223.248 */
+static const s16 b43_ntab_rf_pwr_offset_2057_rev9_5g[] = {
+	-101, -94, -86, -79, -72,
+	-65, -57, -50, -42, -35,
+	-28, -21, -16, -9, -4,
+	0,
+};
+
+/* Extracted from MMIO dump of 6.30.223.248
+ * Entries: 0, 26, 28, 29, 30, 31 were guessed
+ */
+static const s16 b43_ntab_rf_pwr_offset_2057_rev14_2g[] = {
+	-111, -111, -111, -84, -70,
+	-59, -52, -45, -40, -36,
+	-32, -29, -26, -23, -21,
+	-18, -16, -15, -13, -11,
+	-10, -8, -7, -6, -5,
+	-4, -4, -3, -3, -2,
+	-2, -1,
+};
+
 const u16 tbl_iqcal_gainparams[2][9][8] = {
 	{
 		{ 0x000, 0, 0, 2, 0x69, 0x69, 0x69, 0x69 },
@@ -3708,6 +3742,39 @@ const u32 *b43_nphy_get_tx_gain_table(struct b43_wldev *dev)
 	}
 }
 
+const s16 *b43_ntab_get_rf_pwr_offset_table(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+		switch (phy->rev) {
+		case 17:
+			if (phy->radio_rev == 14)
+				return b43_ntab_rf_pwr_offset_2057_rev14_2g;
+			break;
+		case 16:
+			if (phy->radio_rev == 9)
+				return b43_ntab_rf_pwr_offset_2057_rev9_2g;
+			break;
+		}
+
+		b43err(dev->wl,
+		       "No 2GHz RF power table available for this device\n");
+		return NULL;
+	} else {
+		switch (phy->rev) {
+		case 16:
+			if (phy->radio_rev == 9)
+				return b43_ntab_rf_pwr_offset_2057_rev9_5g;
+			break;
+		}
+
+		b43err(dev->wl,
+		       "No 5GHz RF power table available for this device\n");
+		return NULL;
+	}
+}
+
 struct nphy_gain_ctl_workaround_entry *b43_nphy_get_gain_ctl_workaround_ent(
 	struct b43_wldev *dev, bool ghz5, bool ext_lna)
 {
diff --git a/drivers/net/wireless/b43/tables_nphy.h b/drivers/net/wireless/b43/tables_nphy.h
index 3ce2e6f3a278..b51f386db02f 100644
--- a/drivers/net/wireless/b43/tables_nphy.h
+++ b/drivers/net/wireless/b43/tables_nphy.h
@@ -191,6 +191,8 @@ void b43_nphy_tables_init(struct b43_wldev *dev);
 
 const u32 *b43_nphy_get_tx_gain_table(struct b43_wldev *dev);
 
+const s16 *b43_ntab_get_rf_pwr_offset_table(struct b43_wldev *dev);
+
 extern const s8 b43_ntab_papd_pga_gain_delta_ipa_2g[];
 
 extern const u16 tbl_iqcal_gainparams[2][9][8];