From 2b90683aff8472801c2a5fd33cc18e0355b510cc Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Sun, 28 May 2023 12:34:29 +0200
Subject: [PATCH] added debug output for usart comms

---
 client/src/uart/uart_posix.c | 4 ++++
 client/src/uart/uart_win32.c | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/client/src/uart/uart_posix.c b/client/src/uart/uart_posix.c
index b2a858e09..58e497d55 100644
--- a/client/src/uart/uart_posix.c
+++ b/client/src/uart/uart_posix.c
@@ -263,6 +263,7 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
 
     sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK);
     if (sp->fd == -1) {
+        PrintAndLogEx(ERR, "error: UART file descriptor");
         uart_close(sp);
         return INVALID_SERIAL_PORT;
     }
@@ -285,6 +286,7 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
 
     // Try to retrieve the old (current) terminal info struct
     if (tcgetattr(sp->fd, &sp->tiOld) == -1) {
+        PrintAndLogEx(ERR, "error: UART get terminal info attribute");
         uart_close(sp);
         return INVALID_SERIAL_PORT;
     }
@@ -305,6 +307,8 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
 
     // Try to set the new terminal info struct
     if (tcsetattr(sp->fd, TCSANOW, &sp->tiNew) == -1) {
+        PrintAndLogEx(ERR, "error: UART set terminal info attribute");
+        perror("tcsetattr() error");
         uart_close(sp);
         return INVALID_SERIAL_PORT;
     }
diff --git a/client/src/uart/uart_win32.c b/client/src/uart/uart_win32.c
index 9cdcc41d1..699ac4525 100644
--- a/client/src/uart/uart_win32.c
+++ b/client/src/uart/uart_win32.c
@@ -98,6 +98,7 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
         free(prefix);
 
         if (strlen(pcPortName) <= 4) {
+            PrintAndLogEx(ERR, "error: tcp port name length too short");
             free(sp);
             return INVALID_SERIAL_PORT;
         }
@@ -193,6 +194,7 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
     sp->hPort = CreateFileA(acPortName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
     if (sp->hPort == INVALID_HANDLE_VALUE) {
         uart_close(sp);
+        PrintAndLogEx(ERR, "error:  invalid handle");
         return INVALID_SERIAL_PORT;
     }