gitproxy/RTLPlayground
1
0
Fork 0
mirror of https://github.com/logicog/RTLPlayground.git synced 2026-08-30 14:52:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

Make RX of packets work

Browse Source
This commit is contained in:
logicog
2025-06-21 16:18:19 +02:00
parent dd039494c2
commit 2776df9ca8
2 changed files with 85 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
rtl837x_sfr.h
+5 -5
View File
@@ -81,10 +81,10 @@ __sfr __at(0xa9) SFR_FLASH_ADDR0;
/*
* NIC Interface
* CAREFUL: This is now Little Endian
*/
__sfr __at(0xb7) SFR_NIC_CTRL;
__sfr __at(0xb3) SFR_NIC_DATA_H;
__sfr __at(0xb4) SFR_NIC_DATA_L;
__sfr __at(0xb5) SFR_NIC_DATA_X;
__sfr __at(0xb5) SFR_NIC_DATA_Y;
__sfr __at(0xb3) SFR_NIC_DATA_L;
__sfr __at(0xb4) SFR_NIC_DATA_H;
__sfr __at(0xb5) SFR_NIC_RING_L;
__sfr __at(0xb6) SFR_NIC_RING_H;
rtlplayground.c
+80
View File
@@ -50,6 +50,8 @@ __code uint8_t * __code greeting = "\r\nA minimal prompt to explore the RTL8372!
__code uint8_t * __code hex = "0123456789abcdef";
__xdata uint8_t flash_buf[256];
__xdata uint8_t rx_headers[32];
__xdata uint8_t rx_buf[1024];
__code uint16_t bit_mask[16] = {
0x0001, 0x0002, 0x0004,0x0008,0x0010,0x0020,0x0040, 0x0080,
@@ -330,6 +332,44 @@ void sfr_mask_data(uint8_t n, uint8_t mask, uint8_t set)
}
/*
* Transfer Network Interface RX data from the ASIC to the 8051 XMEM
* data will be stored in the rx_header structure
* len is the length of data to be transferred
*/
void nic_rx_header(uint16_t ring_ptr)
{
uint16_t buffer = (uint16_t) rx_headers,
SFR_NIC_DATA_H = buffer >> 8;
SFR_NIC_DATA_L = buffer;
SFR_NIC_RING_L = ring_ptr;
SFR_NIC_RING_H = ring_ptr >> 8;
SFR_NIC_CTRL = 1;
do { } while (SFR_NIC_CTRL != 0);
}
/*
* Transfer Network Interface RX data from the ASIC to the 8051 XMEM
* the description of the packet must be in the rx_headers data structure
* data will be returned in the xmem buffer points to
* ring_ptr is the current position of the RX Ring on the ASIC side
*/
void nic_rx_packet(uint16_t buffer, uint16_t ring_ptr)
{
SFR_NIC_DATA_H = buffer >> 8;
SFR_NIC_DATA_L = buffer;
SFR_NIC_RING_L = ring_ptr;
SFR_NIC_RING_H = ring_ptr >> 8;
uint16_t len = (((uint16_t)rx_headers[5]) << 8) | rx_headers[4];
len += 7;
len >>= 3;
print_string(" len: ");
print_short(len);
SFR_NIC_CTRL = len;
do { } while (SFR_NIC_CTRL != 0);
}
/* Read flash using the MMIO capabilities of the DW8051 core
* Bank is < 0x3f and is the MSB
* addr gives the address in the bank
@@ -645,6 +685,43 @@ uint8_t sfp_read_reg(uint8_t reg)
}
void handle_rx(void)
{
reg_read_m(0x7874);
if (sfr_data[3] != 0) {
print_string("\r\nrx:");
print_long_x(sfr_data);
reg_read_m(0x787c);
print_string(", ");
print_long_x(sfr_data);
uint16_t ring_ptr = ((uint16_t)sfr_data[2]) << 8;
ring_ptr |= sfr_data[3];
ring_ptr <<= 3;
print_string(", ring_ptr: ");
print_short(ring_ptr);
nic_rx_header(ring_ptr);
__xdata uint8_t *ptr = rx_headers;
print_string(": ");
for (uint8_t i = 0; i < 8; i++) {
print_byte(*ptr++);
write_char(' ');
}
nic_rx_packet((uint16_t) rx_buf, ring_ptr + 8);
print_string("\r\n> ");
ptr = rx_buf;
for (uint8_t i = 0; i < 80; i++) {
print_byte(*ptr++);
write_char(' ');
}
sfr_data[0] = sfr_data[1] = sfr_data[2] = 0;
sfr_data[3] = 0x1;
reg_write_m(0x784c);
reg_write_m(0x7850);
}
}
//
// An idle function that sleeps for 1 tick and does all the house-keeping
//
@@ -732,6 +809,9 @@ void idle(void)
sfp_pins_last |= 0x02;
print_string("\r\n<RX LOS>\r\n");
}
// Check new Packets RX
handle_rx();
}