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From cd4a93d1532b2f0ffe508f7fb5d464ec49634dcd Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Fri, 22 Jul 2016 13:55:24 -0400
Subject: [PATCH] rtl8xxxu: Implement rtl8188e_set_tx_power()
This matches the code used to set TX power on 8192eu, except it only
handles path A.
We should be able to consolidate this code.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 63 ++++++++++++++++++++++
1 file changed, 63 insertions(+)
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
@@ -283,6 +283,68 @@ static struct rtl8xxxu_rfregval rtl8188e
{0xff, 0xffffffff}
};
+int rtl8xxxu_8188e_channel_to_group(int channel)
+{
+ int group;
+
+ if (channel < 3)
+ group = 0;
+ else if (channel < 6)
+ group = 1;
+ else if (channel < 9)
+ group = 2;
+ else if (channel < 12)
+ group = 3;
+ else if (channel < 14)
+ group = 4;
+ else
+ group = 5;
+
+ return group;
+}
+
+static void
+rtl8188e_set_tx_power(struct rtl8xxxu_priv *priv, int channel, bool ht40)
+{
+ u32 val32, ofdm, mcs;
+ u8 cck, ofdmbase, mcsbase;
+ int group, tx_idx;
+
+ tx_idx = 0;
+ group = rtl8xxxu_8188e_channel_to_group(channel);
+
+ cck = priv->cck_tx_power_index_A[group];
+
+ val32 = rtl8xxxu_read32(priv, REG_TX_AGC_A_CCK1_MCS32);
+ val32 &= 0xffff00ff;
+ val32 |= (cck << 8);
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_CCK1_MCS32, val32);
+
+ val32 = rtl8xxxu_read32(priv, REG_TX_AGC_B_CCK11_A_CCK2_11);
+ val32 &= 0xff;
+ val32 |= ((cck << 8) | (cck << 16) | (cck << 24));
+ rtl8xxxu_write32(priv, REG_TX_AGC_B_CCK11_A_CCK2_11, val32);
+
+ ofdmbase = priv->ht40_1s_tx_power_index_A[group];
+ ofdmbase += priv->ofdm_tx_power_diff[tx_idx].a;
+ ofdm = ofdmbase | ofdmbase << 8 | ofdmbase << 16 | ofdmbase << 24;
+
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_RATE18_06, ofdm);
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_RATE54_24, ofdm);
+
+ mcsbase = priv->ht40_1s_tx_power_index_A[group];
+ if (ht40)
+ mcsbase += priv->ht40_tx_power_diff[tx_idx++].a;
+ else
+ mcsbase += priv->ht20_tx_power_diff[tx_idx++].a;
+ mcs = mcsbase | mcsbase << 8 | mcsbase << 16 | mcsbase << 24;
+
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_MCS03_MCS00, mcs);
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_MCS07_MCS04, mcs);
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_MCS11_MCS08, mcs);
+ rtl8xxxu_write32(priv, REG_TX_AGC_A_MCS15_MCS12, mcs);
+}
+
void rtl8188eu_config_channel(struct ieee80211_hw *hw)
{
struct rtl8xxxu_priv *priv = hw->priv;
@@ -1152,6 +1214,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops =
.enable_rf = rtl8188e_enable_rf,
.disable_rf = rtl8188e_disable_rf,
.usb_quirks = rtl8188e_usb_quirks,
+ .set_tx_power = rtl8188e_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
.writeN_block_size = 128,
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