From c94580448095ba8f8c2b489cce3149687f1016b4 Mon Sep 17 00:00:00 2001
From: MacRsh <macrsh@163.com>
Date: Mon, 7 Apr 2025 19:50:46 +0800
Subject: [PATCH] =?UTF-8?q?fix(serial,drv=5Fpin):=20=E4=BF=AE=E5=A4=8Dseri?=
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感谢Lucas反馈问题
---
 bsp/st/driver/drv_pin.c  | 3 +++
 bsp/wch/driver/drv_pin.c | 5 ++++-
 device/serial.c          | 6 +++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/bsp/st/driver/drv_pin.c b/bsp/st/driver/drv_pin.c
index d61b171..5134b7d 100644
--- a/bsp/st/driver/drv_pin.c
+++ b/bsp/st/driver/drv_pin.c
@@ -203,6 +203,9 @@ static int drv_pin_configure(struct mr_pin *pin, int number, int mode)
             {
                 HAL_NVIC_DisableIRQ(pin_irq_map[exti_line]);
             }
+        } else
+        {
+            HAL_NVIC_DisableIRQ(pin_irq_map[exti_line]);
         }
         pin_irq_mask[exti_line] = -1;
     }
diff --git a/bsp/wch/driver/drv_pin.c b/bsp/wch/driver/drv_pin.c
index 5e8da03..c2a281e 100644
--- a/bsp/wch/driver/drv_pin.c
+++ b/bsp/wch/driver/drv_pin.c
@@ -220,7 +220,7 @@ static int drv_pin_configure(struct mr_pin *pin, int number, int mode)
             {
                 EXTI_InitStructure.EXTI_LineCmd = ENABLE;
             }
-        } else
+        } else if ((exti_line >= 10) && (exti_line <= 15))
         {
             if ((pin_irq_mask[10] == -1) &&
                 (pin_irq_mask[11] == -1) &&
@@ -234,6 +234,9 @@ static int drv_pin_configure(struct mr_pin *pin, int number, int mode)
             {
                 EXTI_InitStructure.EXTI_LineCmd = ENABLE;
             }
+        } else
+        {
+            EXTI_InitStructure.EXTI_LineCmd = DISABLE;
         }
 #endif /* MR_USING_CH32V00X */
         pin_irq_mask[exti_line] = -1;
diff --git a/device/serial.c b/device/serial.c
index a846e2d..1ea40ad 100644
--- a/device/serial.c
+++ b/device/serial.c
@@ -276,7 +276,7 @@ static int mr_serial_ioctl(struct mr_dev *dev, int cmd, void *args)
             if (args != MR_NULL) {
                 size_t bufsz = *(size_t *)args;
 
-                if (ops->stop_dma_rx) {
+                if (ops->stop_dma_rx == MR_NULL) {
                     return MR_EIO;
                 }
                 ops->stop_dma_rx(serial);
@@ -299,6 +299,10 @@ static int mr_serial_ioctl(struct mr_dev *dev, int cmd, void *args)
             if (args != MR_NULL) {
                 size_t bufsz = *(size_t *)args;
 
+                if (serial->nonblock_state != MR_DISABLE) {
+                    return MR_EBUSY;
+                }
+
                 uint8_t *pool = mr_realloc(serial->dma_wr_buf, bufsz);
                 if ((pool == MR_NULL) && (bufsz != 0)) {
                     return MR_ENOMEM;