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xiaoxiang pushed a commit to branch master
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commit 2a8acac15934e091e98969e51939041c09c2eff9
Author: Bowen Wang <[email protected]>
AuthorDate: Tue Dec 31 14:57:12 2024 +0800

    rpmsg/rpmsg_port_uart: drop all the packets when reconnect to peer
    
    1. move drop packets function from port spi to port;
    2. add drop packets logic when reconnect to peer;
    
    Signed-off-by: Bowen Wang <[email protected]>
    Signed-off-by: liaoao <[email protected]>
---
 drivers/rpmsg/rpmsg_port.c           | 25 +++++++++++++++++++++++++
 drivers/rpmsg/rpmsg_port.h           | 14 ++++++++++++++
 drivers/rpmsg/rpmsg_port_spi.c       | 34 ++--------------------------------
 drivers/rpmsg/rpmsg_port_spi_slave.c | 36 +++---------------------------------
 drivers/rpmsg/rpmsg_port_uart.c      | 11 ++++++++++-
 5 files changed, 54 insertions(+), 66 deletions(-)

diff --git a/drivers/rpmsg/rpmsg_port.c b/drivers/rpmsg/rpmsg_port.c
index e3d57463d5d..161398e689c 100644
--- a/drivers/rpmsg/rpmsg_port.c
+++ b/drivers/rpmsg/rpmsg_port.c
@@ -722,6 +722,31 @@ void rpmsg_port_queue_add_buffer(FAR struct 
rpmsg_port_queue_s *queue,
   rpmsg_port_post(&queue->ready.sem);
 }
 
+/****************************************************************************
+ * Name: rpmsg_port_drop_packets
+ ****************************************************************************/
+
+void rpmsg_port_drop_packets(FAR struct rpmsg_port_s *rport, uint8_t type)
+{
+  FAR struct rpmsg_port_header_s *hdr;
+
+  if (type & RPMSG_PORT_DROP_TXQ)
+    {
+      while (!!(hdr = rpmsg_port_queue_get_buffer(&rport->txq, false)))
+        {
+          rpmsg_port_queue_return_buffer(&rport->txq, hdr);
+        }
+    }
+
+  if (type & RPMSG_PORT_DROP_RXQ)
+    {
+      while (!!(hdr = rpmsg_port_queue_get_buffer(&rport->rxq, false)))
+        {
+          rpmsg_port_queue_return_buffer(&rport->rxq, hdr);
+        }
+    }
+}
+
 /****************************************************************************
  * Name: rpmsg_port_register
  ****************************************************************************/
diff --git a/drivers/rpmsg/rpmsg_port.h b/drivers/rpmsg/rpmsg_port.h
index efb5118ade3..220a5eddeaa 100644
--- a/drivers/rpmsg/rpmsg_port.h
+++ b/drivers/rpmsg/rpmsg_port.h
@@ -37,6 +37,14 @@
 #include <nuttx/rpmsg/rpmsg.h>
 #include <nuttx/rpmsg/rpmsg_port.h>
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define RPMSG_PORT_DROP_TXQ     0x01
+#define RPMSG_PORT_DROP_RXQ     0x02
+#define RPMSG_PORT_DROP_ALL     0x03
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/
@@ -264,6 +272,12 @@ uint16_t rpmsg_port_queue_nused(FAR struct 
rpmsg_port_queue_s *queue)
   return atomic_read(&queue->ready.num);
 }
 
+/****************************************************************************
+ * Name: rpmsg_port_drop_packets
+ ****************************************************************************/
+
+void rpmsg_port_drop_packets(FAR struct rpmsg_port_s *rport, uint8_t type);
+
 /****************************************************************************
  * Name: rpmsg_port_initialize
  *
diff --git a/drivers/rpmsg/rpmsg_port_spi.c b/drivers/rpmsg/rpmsg_port_spi.c
index 07c45fe8a02..7112f25d69b 100644
--- a/drivers/rpmsg/rpmsg_port_spi.c
+++ b/drivers/rpmsg/rpmsg_port_spi.c
@@ -49,10 +49,6 @@
 #  define rpmsg_port_spi_crc16(hdr) 0
 #endif
 
-#define RPMSG_PORT_SPI_DROP_TXQ     0x01
-#define RPMSG_PORT_SPI_DROP_RXQ     0x02
-#define RPMSG_PORT_SPI_DROP_ALL     0x03
-
 #define BYTES2WORDS(s,b)            ((b) / ((s)->nbits >> 3))
 
 /****************************************************************************
@@ -141,32 +137,6 @@ static const struct rpmsg_port_ops_s g_rpmsg_port_spi_ops =
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Name: rpmsg_port_spi_drop_packets
- ****************************************************************************/
-
-static void
-rpmsg_port_spi_drop_packets(FAR struct rpmsg_port_spi_s *rpspi, uint8_t type)
-{
-  FAR struct rpmsg_port_header_s *hdr;
-
-  if (type & RPMSG_PORT_SPI_DROP_TXQ)
-    {
-      while (!!(hdr = rpmsg_port_queue_get_buffer(&rpspi->port.txq, false)))
-        {
-          rpmsg_port_queue_return_buffer(&rpspi->port.txq, hdr);
-        }
-    }
-
-  if (type & RPMSG_PORT_SPI_DROP_RXQ)
-    {
-      while (!!(hdr = rpmsg_port_queue_get_buffer(&rpspi->port.rxq, false)))
-        {
-          rpmsg_port_queue_return_buffer(&rpspi->port.rxq, hdr);
-        }
-    }
-}
-
 /****************************************************************************
  * Name: rpmsg_port_spi_notify_tx_ready
  ****************************************************************************/
@@ -186,7 +156,7 @@ static void rpmsg_port_spi_notify_tx_ready(FAR struct 
rpmsg_port_s *port)
        * status false.
        */
 
-      rpmsg_port_spi_drop_packets(rpspi, RPMSG_PORT_SPI_DROP_TXQ);
+      rpmsg_port_drop_packets(&rpspi->port, RPMSG_PORT_DROP_TXQ);
     }
 }
 
@@ -331,7 +301,7 @@ static void rpmsg_port_spi_complete_handler(FAR void *arg)
            * when a reconnect request to be received.
            */
 
-          rpmsg_port_spi_drop_packets(rpspi, RPMSG_PORT_SPI_DROP_ALL);
+          rpmsg_port_drop_packets(&rpspi->port, RPMSG_PORT_DROP_ALL);
         }
     }
   else if (rpspi->rxhdr->cmd == RPMSG_PORT_SPI_CMD_CONNECT)
diff --git a/drivers/rpmsg/rpmsg_port_spi_slave.c 
b/drivers/rpmsg/rpmsg_port_spi_slave.c
index d4e69ad3f79..5591962941d 100644
--- a/drivers/rpmsg/rpmsg_port_spi_slave.c
+++ b/drivers/rpmsg/rpmsg_port_spi_slave.c
@@ -49,10 +49,6 @@
 #  define rpmsg_port_spi_crc16(hdr) 0
 #endif
 
-#define RPMSG_PORT_SPI_DROP_TXQ     0x01
-#define RPMSG_PORT_SPI_DROP_RXQ     0x02
-#define RPMSG_PORT_SPI_DROP_ALL     0x03
-
 #define BYTES2WORDS(s,b)            ((b) / ((s)->nbits >> 3))
 
 /****************************************************************************
@@ -162,32 +158,6 @@ static const struct spi_slave_devops_s 
g_rpmsg_port_spi_slave_ops =
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Name: rpmsg_port_spi_drop_packets
- ****************************************************************************/
-
-static void
-rpmsg_port_spi_drop_packets(FAR struct rpmsg_port_spi_s *rpspi, int type)
-{
-  FAR struct rpmsg_port_header_s *hdr;
-
-  if (type & RPMSG_PORT_SPI_DROP_TXQ)
-    {
-      while (!!(hdr = rpmsg_port_queue_get_buffer(&rpspi->port.txq, false)))
-        {
-          rpmsg_port_queue_return_buffer(&rpspi->port.txq, hdr);
-        }
-    }
-
-  if (type & RPMSG_PORT_SPI_DROP_RXQ)
-    {
-      while (!!(hdr = rpmsg_port_queue_get_buffer(&rpspi->port.rxq, false)))
-        {
-          rpmsg_port_queue_return_buffer(&rpspi->port.rxq, hdr);
-        }
-    }
-}
-
 /****************************************************************************
  * Name: rpmsg_port_spi_exchange
  ****************************************************************************/
@@ -254,7 +224,7 @@ static void rpmsg_port_spi_notify_tx_ready(FAR struct 
rpmsg_port_s *port)
        * status false.
        */
 
-      rpmsg_port_spi_drop_packets(rpspi, RPMSG_PORT_SPI_DROP_TXQ);
+      rpmsg_port_drop_packets(&rpspi->port, RPMSG_PORT_DROP_TXQ);
     }
 }
 
@@ -392,7 +362,7 @@ static void rpmsg_port_spi_slave_notify(FAR struct 
spi_slave_dev_s *dev,
            * when a reconnect request to be received.
            */
 
-          rpmsg_port_spi_drop_packets(rpspi, RPMSG_PORT_SPI_DROP_ALL);
+          rpmsg_port_drop_packets(&rpspi->port, RPMSG_PORT_DROP_ALL);
         }
     }
   else if (rpspi->rxhdr->cmd == RPMSG_PORT_SPI_CMD_CONNECT)
@@ -423,7 +393,7 @@ static void rpmsg_port_spi_slave_notify(FAR struct 
spi_slave_dev_s *dev,
       if (rpspi->rxhdr->cmd == RPMSG_PORT_SPI_CMD_SHUTDOWN)
         {
           rpspi->state = RPMSG_PORT_SPI_STATE_DISCONNECTING;
-          rpmsg_port_spi_drop_packets(rpspi, RPMSG_PORT_SPI_DROP_ALL);
+          rpmsg_port_drop_packets(&rpspi->port, RPMSG_PORT_DROP_ALL);
         }
 
       rpmsg_port_queue_add_buffer(&rpspi->port.rxq, rpspi->rxhdr);
diff --git a/drivers/rpmsg/rpmsg_port_uart.c b/drivers/rpmsg/rpmsg_port_uart.c
index 49a152c1148..217090692c0 100644
--- a/drivers/rpmsg/rpmsg_port_uart.c
+++ b/drivers/rpmsg/rpmsg_port_uart.c
@@ -199,6 +199,7 @@ static void rpmsg_port_uart_send_packet(FAR struct 
rpmsg_port_uart_s *rpuart,
   rpmsg_port_uart_wakeup(rpuart);
 
   rpmsgdump("TX Packed Data", data, datalen);
+  rpmsgdbg("Sent %zu Data\n", datalen);
 
   while (datalen > 0)
     {
@@ -308,6 +309,7 @@ rpmsg_port_uart_process_rx_conn(FAR struct 
rpmsg_port_uart_s *rpuart,
       rpmsgdbg("Connect Request Command %d\n", rpuart->connected);
       if (rpuart->connected)
         {
+          rpmsg_port_drop_packets(&rpuart->port, RPMSG_PORT_DROP_TXQ);
           rpmsg_port_unregister(&rpuart->port);
         }
       else
@@ -315,6 +317,7 @@ rpmsg_port_uart_process_rx_conn(FAR struct 
rpmsg_port_uart_s *rpuart,
           rpuart->connected = true;
         }
 
+      rpmsg_port_drop_packets(&rpuart->port, RPMSG_PORT_DROP_ALL);
       rpmsg_port_uart_send_command(rpuart, RPMSG_PORT_UART_CONNACK);
       rpmsg_port_register(&rpuart->port, rpuart->localcpu);
     }
@@ -324,6 +327,7 @@ rpmsg_port_uart_process_rx_conn(FAR struct 
rpmsg_port_uart_s *rpuart,
       if (!rpuart->connected)
         {
           rpuart->connected = true;
+          rpmsg_port_drop_packets(&rpuart->port, RPMSG_PORT_DROP_ALL);
           rpmsg_port_register(&rpuart->port, rpuart->localcpu);
         }
     }
@@ -389,6 +393,7 @@ static int rpmsg_port_uart_rx_thread(int argc, FAR char 
*argv[])
           else if (buf[i] == RPMSG_PORT_UART_POWEROFF)
             {
               rpmsgdbg("Received poweroff command\n");
+              rpmsg_port_drop_packets(&rpuart->port, RPMSG_PORT_DROP_TXQ);
               rpmsg_port_unregister(&rpuart->port);
               rpuart->connected = false;
               continue;
@@ -482,7 +487,11 @@ static int rpmsg_port_uart_tx_thread(int argc, FAR char 
*argv[])
 
       while ((hdr = rpmsg_port_queue_get_buffer(txq, true)) != NULL)
         {
-          rpmsg_port_uart_send_data(rpuart, hdr);
+          if (rpuart->connected)
+            {
+              rpmsg_port_uart_send_data(rpuart, hdr);
+            }
+
           rpmsg_port_queue_return_buffer(txq, hdr);
         }
     }

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