From 859a50bd82919fc6b0c53bb19415879f2a3c4dde Mon Sep 17 00:00:00 2001
From: chriz <chriz@MOBILE3>
Date: Tue, 10 Feb 2026 23:17:04 +0100
Subject: [PATCH] fix-link-speed

---
 httpd/page_impl.c | 24 ++++++++++++++++++------
 rtl837x_port.c    | 28 ++++++++++++++++++++++------
 rtl837x_regs.h    |  2 ++
 3 files changed, 42 insertions(+), 12 deletions(-)

diff --git a/httpd/page_impl.c b/httpd/page_impl.c
index f8d810b..d89b26b 100644
--- a/httpd/page_impl.c
+++ b/httpd/page_impl.c
@@ -626,13 +626,25 @@ void send_status(void)
 		}
 
 		slen += strtox(outbuf + slen, ",\"link\":");
-
-		if (i < 8)
-			reg_read_m(RTL837X_REG_LINKS);
+		
+		uint8_t b = 0;
+		// Determine link state
+		reg_read_m(RTL837X_REG_LINKS_STS);
+		if(!((sfr_data[(i / 8) + 1] >> (i % 8 ) & 1)))
+		{
+			b = 0; //link down
+		}
 		else
-			reg_read_m(RTL837X_REG_LINKS_89);
-		uint8_t b = sfr_data[3 - ((i & 7) >> 1)];
-		b = (i & 1) ? b >> 4 : b & 0xf;
+		{
+				//Determine link speed
+				if (i < 8)
+					reg_read_m(RTL837X_REG_LINKS);
+				else
+					reg_read_m(RTL837X_REG_LINKS_89);
+				
+				b = sfr_data[3 - ((i & 7) >> 1)];
+				b = ((i & 1) ? b >> 4 : b & 0xf) + 1;
+		}
 		char_to_html('0' + b);
 
 		STAT_GET(STAT_COUNTER_TX_PKTS, i);
diff --git a/rtl837x_port.c b/rtl837x_port.c
index 322e60d..4e12a6d 100644
--- a/rtl837x_port.c
+++ b/rtl837x_port.c
@@ -369,15 +369,28 @@ void port_stats_print(void) __banked
 			}
 		}
 
-		if (i < 8)
-			reg_read_m(RTL837X_REG_LINKS);
+		uint8_t b = 0;
+
+		// Determine link state
+		reg_read_m(RTL837X_REG_LINKS_STS);
+		if(!((sfr_data[(i / 8) + 1] >> ( i % 8  ) & 1)))
+		{
+			b = 99;
+		}
 		else
-			reg_read_m(RTL837X_REG_LINKS_89);
-		uint8_t b = sfr_data[3 - ((i & 7) >> 1)];
-		b = (i & 1) ? b >> 4 : b & 0xf;
+		{
+			if (i < 8)
+				reg_read_m(RTL837X_REG_LINKS);
+			else
+				reg_read_m(RTL837X_REG_LINKS_89);
+
+			b = sfr_data[3 - ((i & 7) >> 1)];	
+			b = (i & 1) ? b >> 4 : b & 0xf;
+		}
+
 		switch (b) {
 		case 0:
-			print_string("Down\t");
+			print_string("10M\t");
 			break;
 		case 1:
 			print_string("100M\t");
@@ -391,6 +404,9 @@ void port_stats_print(void) __banked
 		case 5:
 			print_string("2.5G\t");
 			break;
+		case 99:
+			print_string("Down\t");
+			break;
 		default:
 			print_string("Up\t");
 			break;
diff --git a/rtl837x_regs.h b/rtl837x_regs.h
index b6d0e54..b9bc752 100644
--- a/rtl837x_regs.h
+++ b/rtl837x_regs.h
@@ -66,6 +66,8 @@
 
 #define RTL837X_REG_LINKS	0x63f0
 #define RTL837X_REG_LINKS_89	0x63f4
+#define RTL837X_REG_LINKS_STS	0x63E8
+
 /* Each nibble encodes the link state of a port.
    Port 0 appears to be the CPU port
    The RTL8372 serves ports 4-7, port 3 is the RTL8221