From 83257996571a200976cf390a94324379b2dda911 Mon Sep 17 00:00:00 2001
From: fslongjin <longjin@RinGoTek.cn>
Date: Wed, 3 Aug 2022 14:52:42 +0800
Subject: [PATCH] =?UTF-8?q?uart=E5=A2=9E=E5=8A=A0=E5=8F=91=E9=80=81?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E4=B8=B2=E7=9A=84=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kernel/driver/uart/uart.c | 21 ++++++++++++++++++++-
 kernel/driver/uart/uart.h | 10 +++++++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/kernel/driver/uart/uart.c b/kernel/driver/uart/uart.c
index 2001d28b..c7d4450f 100644
--- a/kernel/driver/uart/uart.c
+++ b/kernel/driver/uart/uart.c
@@ -83,6 +83,25 @@ uchar uart_read(uint32_t port)
 {
     while (serial_received(port) == 0)
         pause();
-    
+
     return io_in8(port);
+}
+
+/**
+ * @brief 通过串口发送整个字符串
+ *
+ * @param port 串口端口
+ * @param str 字符串
+ */
+void uart_send_str(uint32_t port, const char *str)
+{
+    if ((unlikely(str == NULL)))
+        return;
+    while (1)
+    {
+        if (unlikely(*str == '\0'))
+            return;
+        uart_send(port, *str);
+        ++str;
+    }
 }
\ No newline at end of file
diff --git a/kernel/driver/uart/uart.h b/kernel/driver/uart/uart.h
index c5442bd5..8a011685 100644
--- a/kernel/driver/uart/uart.h
+++ b/kernel/driver/uart/uart.h
@@ -61,4 +61,12 @@ void uart_send(uint32_t port, char c);
  * @param port 端口号
  * @return uchar 接收到的数据
  */
-uchar uart_read(uint32_t port);
\ No newline at end of file
+uchar uart_read(uint32_t port);
+
+/**
+ * @brief 通过串口发送整个字符串
+ *
+ * @param port 串口端口
+ * @param str 字符串
+ */
+void uart_send_str(uint32_t port, const char *str);
\ No newline at end of file