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mac80211: clean and submit a bunch of rt2x00 patches

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Clean and submit patches, mostly related to MT7620 to linux-wireless
mailing list:
https://patchwork.kernel.org/project/linux-wireless/list/?series=677770

Replace local patches with now submitted versions.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle
2022-09-17 00:33:30 +01:00
parent 1c785d2567
commit e785ca05e9
19 changed files with 792 additions and 681 deletions
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113
package/kernel/mac80211/patches/rt2x00/985-rt2x00-add-RXIQ-calibration.patch
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@@ -1,32 +1,46 @@
From: =?UTF-8?q?Tomislav=20Po=C5=BEega?= <pozega.tomislav@gmail.com>
From 38b78ba60f6759968b19fe183a344a8612fef694 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 8 Jan 2018 13:43:56 +0100
Subject: [PATCH] rt2x00: add RXIQ calibration
Subject: [PATCH 07/16] rt2x00: add RXIQ calibration for MT7620
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
To: linux-wireless@vger.kernel.org,
Stanislaw Gruszka <stf_xl@wp.pl>,
Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Kalle Valo <kvalo@kernel.org>,
David S. Miller <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Johannes Berg <johannes.berg@intel.com>
From: Tomislav Požega <pozega.tomislav@gmail.com>
Add RXIQ calibration found in mtk driver. With old openwrt builds this
gets us ~8Mbps more of RX bandwidth (test with iPA/eLNA layout).
Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
---
.../net/wireless/ralink/rt2x00/rt2800lib.c | 379 ++++++++++++++++++
1 file changed, 379 insertions(+)
.../net/wireless/ralink/rt2x00/rt2800lib.c | 384 ++++++++++++++++++
1 file changed, 384 insertions(+)
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -8701,6 +8701,384 @@ static void rt2800_rxdcoc_calibration(st
@@ -8696,6 +8696,389 @@ static void rt2800_rxdcoc_calibration(st
rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, saverfb0r2);
}
+static u32 rt2800_do_sqrt_accumulation(u32 si) {
+static u32 rt2800_do_sqrt_accumulation(u32 si)
+{
+ u32 root, root_pre, bit;
+ char i;
+
+ bit = 1 << 15;
+ root = 0;
+ for (i = 15; i >= 0; i = i - 1) {
+ root_pre = root + bit;
+ if ((root_pre*root_pre) <= si)
+ if ((root_pre * root_pre) <= si)
+ root = root_pre;
+ bit = bit >> 1;
+ }
@@ -34,7 +48,8 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ return root;
+}
+
+static void rt2800_rxiq_calibration(struct rt2x00_dev *rt2x00dev) {
+static void rt2800_rxiq_calibration(struct rt2x00_dev *rt2x00dev)
+{
+ u8 rfb0r1, rfb0r2, rfb0r42;
+ u8 rfb4r0, rfb4r19;
+ u8 rfb5r3, rfb5r4, rfb5r17, rfb5r18, rfb5r19, rfb5r20;
@@ -77,7 +92,7 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ for (i = 0; i < 10000; i++) {
+ macstatus = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
+ if (macstatus & 0x3)
+ udelay(50);
+ usleep_range(50, 100);
+ else
+ break;
+ }
@@ -180,7 +195,7 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00001006);
+ udelay(1);
+
+ bbpval = bbp1 & (~ 0x18);
+ bbpval = bbp1 & (~0x18);
+ bbpval = bbpval | 0x00;
+ rt2800_bbp_write(rt2x00dev, 1, bbpval);
+
@@ -199,13 +214,13 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00002006);
+ udelay(1);
+
+ bbpval = bbp1 & (~ 0x18);
+ bbpval = bbp1 & (~0x18);
+ bbpval = bbpval | 0x08;
+ rt2800_bbp_write(rt2x00dev, 1, bbpval);
+
+ rt2800_bbp_dcoc_write(rt2x00dev, 1, 0x01);
+ }
+ udelay(500);
+ usleep_range(500, 1500);
+
+ vga_idx = 0;
+ while (vga_idx < 11) {
@@ -217,7 +232,7 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ for (i = 0; i < 10000; i++) {
+ bbpval = rt2800_bbp_read(rt2x00dev, 159);
+ if ((bbpval & 0xff) == 0x93)
+ udelay(50);
+ usleep_range(50, 100);
+ else
+ break;
+ }
@@ -247,7 +262,7 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ value = rt2800_bbp_read(rt2x00dev, 159);
+ bbptemp = bbptemp + value;
+
+ if ((i < 2) && (bbptemp & 0x800000))
+ if (i < 2 && (bbptemp & 0x800000))
+ result = (bbptemp & 0xffffff) - 0x1000000;
+ else if (i == 4)
+ result = bbptemp;
@@ -255,21 +270,23 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ result = bbptemp;
+
+ if (i == 0)
+ mi = result/4096;
+ mi = result / 4096;
+ else if (i == 1)
+ mq = result/4096;
+ mq = result / 4096;
+ else if (i == 2)
+ si = bbptemp/4096;
+ si = bbptemp / 4096;
+ else if (i == 3)
+ sq = bbptemp/4096;
+ sq = bbptemp / 4096;
+ else
+ riq = result/4096;
+ riq = result / 4096;
+ }
+
+ bbpval1 = si - mi*mi;
+ rt2x00_dbg(rt2x00dev, "RXIQ si=%d, sq=%d, riq=%d, bbpval %d, vga_idx %d", si, sq, riq, bbpval1, vga_idx);
+ bbpval1 = si - mi * mi;
+ rt2x00_dbg(rt2x00dev,
+ "RXIQ si=%d, sq=%d, riq=%d, bbpval %d, vga_idx %d",
+ si, sq, riq, bbpval1, vga_idx);
+
+ if (bbpval1 >= (100*100))
+ if (bbpval1 >= (100 * 100))
+ break;
+
+ if (bbpval1 <= 100)
@@ -292,39 +309,39 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+ vga_idx = vga_idx + 1;
+ }
+
+ sigma_i = rt2800_do_sqrt_accumulation(100*(si - mi*mi));
+ sigma_q = rt2800_do_sqrt_accumulation(100*(sq - mq*mq));
+ r_iq = 10*(riq-(mi*mq));
+ sigma_i = rt2800_do_sqrt_accumulation(100 * (si - mi * mi));
+ sigma_q = rt2800_do_sqrt_accumulation(100 * (sq - mq * mq));
+ r_iq = 10 * (riq - (mi * mq));
+
+ rt2x00_dbg(rt2x00dev, "Sigma_i=%d, Sigma_q=%d, R_iq=%d", sigma_i, sigma_q, r_iq);
+
+ if (((sigma_i <= 1400 ) && (sigma_i >= 1000))
+ && ((sigma_i - sigma_q) <= 112)
+ && ((sigma_i - sigma_q) >= -112)
+ && ((mi <= 32) && (mi >= -32))
+ && ((mq <= 32) && (mq >= -32))) {
+ r_iq = 10*(riq-(mi*mq));
+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n", sigma_i, sigma_q, r_iq);
+ if (sigma_i <= 1400 && sigma_i >= 1000 &&
+ (sigma_i - sigma_q) <= 112 &&
+ (sigma_i - sigma_q) >= -112 &&
+ mi <= 32 && mi >= -32 &&
+ mq <= 32 && mq >= -32) {
+ r_iq = 10 * (riq - (mi * mq));
+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n",
+ sigma_i, sigma_q, r_iq);
+
+ g_rx = (1000 * sigma_q) / sigma_i;
+ g_imb = ((-2) * 128 * (1000 - g_rx)) / (1000 + g_rx);
+ ph_rx = (r_iq * 2292) / (sigma_i * sigma_q);
+ rt2x00_info(rt2x00dev, "RXIQ G_imb=%d, Ph_rx=%d\n", g_imb, ph_rx);
+ g_rx = (1000 * sigma_q) / sigma_i;
+ g_imb = ((-2) * 128 * (1000 - g_rx)) / (1000 + g_rx);
+ ph_rx = (r_iq * 2292) / (sigma_i * sigma_q);
+
+ if ((ph_rx > 20) || (ph_rx < -20)) {
+ ph_rx = 0;
+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
+ }
+
+ if ((g_imb > 12) || (g_imb < -12)) {
+ g_imb = 0;
+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
+ }
+ if (ph_rx > 20 || ph_rx < -20) {
+ ph_rx = 0;
+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
+ }
+ else {
+
+ if (g_imb > 12 || g_imb < -12) {
+ g_imb = 0;
+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
+ }
+ } else {
+ g_imb = 0;
+ ph_rx = 0;
+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n", sigma_i, sigma_q, r_iq);
+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n",
+ sigma_i, sigma_q, r_iq);
+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
+ }
+
@@ -400,7 +417,7 @@ Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
bool set_bw, bool is_ht40)
{
@@ -9313,6 +9691,7 @@ static void rt2800_init_rfcsr_6352(struc
@@ -9308,6 +9691,7 @@ static void rt2800_init_rfcsr_6352(struc
rt2800_rxdcoc_calibration(rt2x00dev);
rt2800_bw_filter_calibration(rt2x00dev, true);
rt2800_bw_filter_calibration(rt2x00dev, false);