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Merge upstream/main into the Spanning Tree branch

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Only httpd.c conflicted: main added the buffered configuration upload
next to the pointers this branch had moved into xdata to free internal
RAM. Both belong, so the new globals sit above declarations that keep
their storage class.
This commit is contained in:
d00f
2026-08-25 23:28:09 +02:00
parent 62f80f0ad2 f582576b10
commit 6e394300c8
10 changed files with 384 additions and 120 deletions
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rtl837x_pins.c
+58
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@@ -1,6 +1,11 @@
#include "rtl837x_pins.h"
#include "rtl837x_common.h"
#include "rtl837x_sfr.h"
#include "rtl837x_regs.h"
#include "machine.h"
extern __code const struct machine machine;
extern __xdata uint8_t sfr_data[4];
uint8_t i2c_bus_from_sda_pin(uint8_t sda_pin) __banked {
@@ -119,3 +124,56 @@ void gpio_output_setup(uint8_t pin, __xdata uint8_t initial_val) __banked{
reg_bit_set(gpio_direction_reg(pin), (pin % 32));
}
/*
* Read up to 16 consecutive registers of the EEPROM via I2C into sfp_buf
*/
bool sfp_read_block(uint8_t slot, uint8_t reg, uint8_t len) __banked __reentrant
{
uint8_t dev;
uint8_t val;
len--;
if (len > 15)
return false;
dev = (reg & 0x80) ? 0x51 : 0x50; // 0x51 holds the diagnostics, 0x50 the module data
reg &= 0x7f;
REG_WRITE(RTL837X_REG_I2C_IN, 0, 0, 0, reg);
REG_WRITE(RTL837X_REG_I2C_CTRL, 0x00,
0x1 << (I2C_MEM_ADDR_WIDTH - 16) | len,
(dev >> 5) | i2c_bus_from_scl_pin(machine.sfp_port[slot].i2c.scl) << 5
| i2c_bus_from_sda_pin(machine.sfp_port[slot].i2c.sda) << 2,
((dev << 3) & 0xff) | 0x1);
do {
reg_read(RTL837X_REG_I2C_CTRL);
} while (SFR_DATA_0 & 0x1);
if (SFR_DATA_0 & 0x2)
return false;
for (uint8_t i = 0; i <= len; i++) {
switch (i & 0x3) {
case 0:
reg_read(RTL837X_REG_I2C_OUT + i);
val = SFR_DATA_0;
break;
case 1:
val = SFR_DATA_8;
break;
case 2:
val = SFR_DATA_16;
break;
default:
val = SFR_DATA_24;
break;
}
sfp_buf[i] = val;
}
return true;
}