adds proper device based r/w to tgc_vp

env/iss/CMakeLists.txt

@@ -1,30 +0,0 @@
-#cmake_minimum_required(VERSION 3.12)
-project(iss)
-message(STATUS " here in iss")
-
-# Create library for ISS board support
-add_library(board_iss STATIC
-    init.c
-    write.c
-)
-
-# Include directories
-target_include_directories(board_iss PUBLIC
-    ${BSP_BASE}/include
-    ${BSP_BASE}/env
-    ${CMAKE_CURRENT_SOURCE_DIR}
-)
-
-# Set compile options
-target_compile_options(board_iss PRIVATE
-    -march=${RISCV_ARCH}_zicsr_zifencei
-    -mabi=${RISCV_ABI}
-    -mcmodel=medany
-    -ffunction-sections
-    -fdata-sections
-)
-
-# Add compile definitions
-target_compile_definitions(board_iss PRIVATE
-    BOARD_${BOARD}
-)

env/moonlight/bsp_read.c

@@ -1,3 +1,4 @@
+#include "platform.h"
 #include <stdint.h>
 #include <stdio.h>
 #include <sys/types.h>
@@ -5,14 +6,15 @@
 
 ssize_t _bsp_read(int fd, void *ptr, size_t len) {
   uint8_t *current = (uint8_t *)ptr;
-  volatile uint32_t *uart_rx = (uint32_t *)0xFFFF0000;
   ssize_t result = 0;
   if (isatty(fd)) {
-    for (current = (uint8_t *)ptr; (current < ((uint8_t *)ptr) + len);
+    for (current = (uint8_t *)ptr; (current < ((uint8_t *)ptr) + len) &&
+                                   (get_uart_rx_tx_reg_rx_avail(uart) > 0);
          current++) {
-      *current = *uart_rx;
+      *current = uart_read(uart);
       result++;
     }
+
     return result;
   }
   return EOF;

env/moonlight/bsp_write.c

@@ -1,5 +1,6 @@
 /* See LICENSE of license details. */
 
+#include "platform.h"
 #include <errno.h>
 #include <stdint.h>
 #include <sys/types.h>
@@ -9,10 +10,12 @@ ssize_t _bsp_write(int fd, const void *ptr, size_t len) {
   const uint8_t *current = (const uint8_t *)ptr;
   if (isatty(fd)) {
     for (size_t jj = 0; jj < len; jj++) {
-      *((uint32_t *)0xFFFF0000) = current[jj];
+      uart_write(uart, current[jj]);
+      if (current[jj] == '\n') {
+        uart_write(uart, '\r');
+      }
     }
     return len;
   }
-
   return 1;
 }

libwrap/CMakeLists.txt

@@ -36,5 +36,6 @@ foreach(FILE ${LIB_SOURCES})
 endforeach()
 
 add_library(wrap STATIC ${LIB_SOURCES} ../env/${BOARD_BASE}/bsp_write.c ../env/${BOARD_BASE}/bsp_read.c)
+target_include_directories(wrap PUBLIC ../include)
 target_link_options(wrap INTERFACE ${WRAP_ARGS})