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Add readout of SFF-8472 A2h info from SFPs

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logicog
2025-12-16 20:06:27 +01:00
parent 95fae8bad2
commit 6272d949cd
1 changed files with 31 additions and 9 deletions
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rtlplayground.c
+31 -9
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@@ -101,7 +101,10 @@ __xdata uint8_t was_offline;
__xdata uint8_t linkbits_last[4]; __xdata uint8_t linkbits_last[4];
__xdata uint8_t linkbits_last_p89; __xdata uint8_t linkbits_last_p89;
__xdata uint8_t sfp_pins_last; __xdata uint8_t sfp_pins_last;
__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];
#define ETHERTYPE_OFFSET (12 + VLAN_TAG_SIZE + RTL_TAG_SIZE) #define ETHERTYPE_OFFSET (12 + VLAN_TAG_SIZE + RTL_TAG_SIZE)
@@ -745,16 +748,17 @@ void sds_config(uint8_t sds, uint8_t mode)
*/ */
uint8_t sfp_read_reg(uint8_t slot, uint8_t reg) uint8_t sfp_read_reg(uint8_t slot, uint8_t reg)
{ {
if (machine.sfp_port[slot].i2c == 0) { if (reg & 0x80) { // Configure SFP readings address (0x51) as I2C device address
reg_read_m(RTL837X_REG_I2C_CTRL); reg &= 0x7f;
sfr_mask_data(1, 0xfc, SCL_PIN << 5 | SDA_PIN_0 << 2); REG_WRITE(RTL837X_REG_I2C_CTRL, 0x00, 0x1 << (I2C_MEM_ADDR_WIDTH-16) | 1, 0x51 >> 5, (0x51 << 3) & 0xff);
reg_write_m(RTL837X_REG_I2C_CTRL);
} else { } else {
reg_read_m(RTL837X_REG_I2C_CTRL); REG_WRITE(RTL837X_REG_I2C_CTRL, 0x00, 0x1 << (I2C_MEM_ADDR_WIDTH-16) | 1, 0x50 >> 5, (0x50 << 3) & 0xff);
sfr_mask_data(1, 0xfc, SCL_PIN << 5 | SDA_PIN_1 << 2);
reg_write_m(RTL837X_REG_I2C_CTRL);
} }
reg_read_m(RTL837X_REG_I2C_CTRL);
sfr_mask_data(1, 0xfc, machine.sfp_port[slot].i2c == 0 ? SCL_PIN << 5 | SDA_PIN_0 << 2 : SCL_PIN << 5 | SDA_PIN_1 << 2 );
reg_write_m(RTL837X_REG_I2C_CTRL);
REG_WRITE(RTL837X_REG_I2C_IN, 0, 0, 0, reg); REG_WRITE(RTL837X_REG_I2C_IN, 0, 0, 0, reg);
// Execute I2C Read // Execute I2C Read
@@ -922,6 +926,20 @@ void sfp_print_info(uint8_t sfp)
} }
void sfp_get_info(uint8_t sfp)
{
for (uint8_t i = 20; i < 36; i++)
sfp_module_vendor[sfp][i-20] = sfp_read_reg(sfp, i);
sfp_module_vendor[sfp][16] = '\0';
for (uint8_t i = 40; i < 56; i++)
sfp_module_model[sfp][i-40] = sfp_read_reg(sfp, i);
sfp_module_model[sfp][16] = '\0';
for (uint8_t i = 68; i < 84; i++)
sfp_module_serial[sfp][i-68] = sfp_read_reg(sfp, i);
sfp_module_serial[sfp][16] = '\0';
}
bool gpio_pin_test(uint8_t pin) bool gpio_pin_test(uint8_t pin)
{ {
reg_read_m(RTL837X_REG_GPIO_00_31_INPUT + (pin > 31 ? 4 : 0)); reg_read_m(RTL837X_REG_GPIO_00_31_INPUT + (pin > 31 ? 4 : 0));
@@ -944,6 +962,8 @@ void handle_sfp(void)
print_string(" Encoding: "); print_byte(sfp_read_reg(sfp, 11)); print_string(" Encoding: "); print_byte(sfp_read_reg(sfp, 11));
print_string(" Module: "); sfp_print_info(sfp); print_string(" Module: "); sfp_print_info(sfp);
print_string("\n"); print_string("\n");
sfp_options[sfp] = sfp_read_reg(sfp, 92);
sfp_get_info(sfp);
sds_config(machine.sfp_port[sfp].sds, sfp_rate_to_sds_config(rate)); sds_config(machine.sfp_port[sfp].sds, sfp_rate_to_sds_config(rate));
} }
} else { } else {
@@ -1646,7 +1666,9 @@ void setup_i2c(void)
{ {
REG_SET(RTL837X_REG_I2C_MST_IF_CTRL, 0); REG_SET(RTL837X_REG_I2C_MST_IF_CTRL, 0);
// Configure SFP EEPROM address (0x50) as I2C device address // Configure SFP EEPROM address (0x50) as I2C device address
REG_SET(RTL837X_REG_I2C_CTRL, 0x1L << I2C_MEM_ADDR_WIDTH | 0x50 << I2C_DEV_ADDR); // Configure SFP readings address (0x51) as I2C device address
REG_WRITE(RTL837X_REG_I2C_CTRL, 0x00, 0x1 << (I2C_MEM_ADDR_WIDTH-16), 0x50 >> 5, (0x50 << 3) & 0xff);
REG_SET(RTL837X_REG_I2C_CTRL2, 0); REG_SET(RTL837X_REG_I2C_CTRL2, 0);
// HW Control register, enable I2C? // HW Control register, enable I2C?