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Merge pull request #246 from logicog/sfp_speed

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Add support for configuring SFP modules speeds via CLI
This commit is contained in:
René van Dorst
2026-05-31 18:33:05 +00:00
committed by GitHub
parent cfeffc434d 1a457c29ac
commit ad64e450e1
4 changed files with 89 additions and 12 deletions
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rtlplayground.c
+17
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@@ -137,6 +137,7 @@ __xdata char sfp_module_vendor[2][17];
__xdata char sfp_module_model[2][17];
__xdata char sfp_module_serial[2][17];
__xdata uint8_t sfp_options[2];
__xdata uint8_t sfp_speed[2];
__xdata bool button_last;
__xdata uint8_t button_sec_counter_last;
volatile __bit tx_buf_empty;
@@ -926,6 +927,10 @@ void sds_config(uint8_t sds, uint8_t mode)
v = 0x0200;
page = 0x2e;
break;
case SDS_100FX:
v = 0x0200;
page = 0x26;
break;
default:
print_string("Error in SDS Mode\n");
return;
@@ -1169,6 +1174,8 @@ void handle_tx(void)
static inline uint8_t sfp_rate_to_sds_config(register uint8_t rate)
{
if (rate == 0x1 || rate == 0x2)
return SDS_100FX;
if (rate == 0xc || rate == 0xd)
return SDS_1000BX_FIBER;
if (rate >= 0x19 && rate <= 0x20) // Ethernet 2.5 GBit
@@ -1234,6 +1241,14 @@ void handle_sfp(void)
// Read Reg 12: Signalling rate (including overhead) in 100Mbit: 0xd: 1Gbit, 0x67:10Gbit
delay(100); // Delay, because some modules need time to wake up
uint8_t rate = sfp_read_reg(sfp, 12);
if (sfp_speed[sfp] == SFP_SPEED_100M)
rate = 0x1;
else if (sfp_speed[sfp] == SFP_SPEED_1G)
rate = 0xc;
else if (sfp_speed[sfp] == SFP_SPEED_2G5)
rate = 0x19;
else if (sfp_speed[sfp] == SFP_SPEED_10G)
rate = 0x69;
print_string(" Rate: "); print_byte(rate); // Normally 1, but 0 for DAC, can be ignored?
print_string(" Encoding: "); print_byte(sfp_read_reg(sfp, 11));
print_string(" Module: "); sfp_print_info(sfp);
@@ -1996,6 +2011,8 @@ void main(void)
// Print SW version
print_sw_version();
// Set AUTONEG for SFP ports
sfp_speed[0] = sfp_speed[1] = SFP_SPEED_AUTO;
// Reset NIC
reg_bit_set(RTL837X_REG_RESET, RESET_NIC_BIT);
do {