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-rw-r--r--firmware/zpu/lib/udp_uart.c116
1 files changed, 0 insertions, 116 deletions
diff --git a/firmware/zpu/lib/udp_uart.c b/firmware/zpu/lib/udp_uart.c
deleted file mode 100644
index a3940c05f..000000000
--- a/firmware/zpu/lib/udp_uart.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright 2011 Ettus Research LLC
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "udp_uart.h"
-#include "hal_uart.h"
-#include "net_common.h"
-#include "compiler.h"
-#include <stdbool.h>
-
-/***********************************************************************
- * Constants
- **********************************************************************/
-#define MAX_NUM_UARTS 4
-#ifndef UDP_UART_MASK
- #error missing definition for UDP_UART_MASK enable mask
-#endif
-static const size_t num_idle_cyc_b4_flush = 11; //small but lucky number
-
-/***********************************************************************
- * Globals
- **********************************************************************/
-static uint16_t _base_port;
-
-typedef struct{
- struct socket_address dst;
- _AL4 uint8_t buf[256];
- size_t len; //length of buffer
- size_t cyc; //idle cycle count
-} udp_uart_state_t;
-
-static udp_uart_state_t _states[MAX_NUM_UARTS];
-
-/***********************************************************************
- * UDP handler for UARTs
- **********************************************************************/
-static void handle_uart_data_packet(
- struct socket_address src, struct socket_address dst,
- unsigned char *payload, int payload_len
-){
- //handle ICMP destination unreachable
- if (payload == NULL){
- const size_t which = src.port-_base_port;
- if (which >= MAX_NUM_UARTS) return;
- _states[which].dst.port = 0;
- }
-
- //handle a regular blocking UART write
- else{
- const size_t which = dst.port-_base_port;
- if (which >= MAX_NUM_UARTS) return;
- _states[which].dst = src;
- for (size_t i = 0; i < payload_len; i++){
- hal_uart_putc((hal_uart_name_t)which, (int)payload[i]);
- }
- }
-}
-
-/***********************************************************************
- * Public init function
- **********************************************************************/
-void udp_uart_init(const uint16_t base_port){
- _base_port = base_port;
- for(size_t i = 0; i < MAX_NUM_UARTS; i++){
- _states[i].dst.port = 0; //reset to null port
- _states[i].len = 0;
- _states[i].cyc = 0;
- register_udp_listener(_base_port+i, handle_uart_data_packet);
- }
-}
-
-/***********************************************************************
- * Public poll function
- **********************************************************************/
-void udp_uart_poll(void){
- for (size_t i = 0; i < MAX_NUM_UARTS; i++){
- if (((UDP_UART_MASK) & (1 << i)) == 0) continue;
-
- bool newline = false;
- udp_uart_state_t *state = &_states[i];
-
- //read all characters we can without blocking
- for (size_t j = state->len; j < sizeof(_states[0].buf); j++){
- int ret = hal_uart_getc_noblock((hal_uart_name_t)i);
- if (ret == -1) break;
- char ch = (char) ret;
- if (ch == '\n' || ch == '\r') newline = true;
- state->buf[j] = ch;
- state->len++;
- state->cyc = 0; //reset idle cycles
- }
-
- //nothing in buffer, continue to next uart
- if (state->len == 0) continue;
-
- //send out a message if newline or forced flush
- if (newline || state->cyc++ > num_idle_cyc_b4_flush){
- if (state->dst.port != 0) send_udp_pkt(_base_port+i, state->dst, state->buf, state->len);
- state->len = 0;
- state->cyc = 0;
- }
- }
-}