hw/char/cmsdk-apb-uart.c: Accept more input after character read

The character frontend needs to be notified that the uart receive buffer
is empty and ready to handle another character.

Previously, the uart only worked correctly when receiving one character
at a time.

Signed-off-by: Patrick Oppenlander <patrick.oppenlander@gmail.com>
Message-id: CAEg67GkRTw=cXei3o9hvpxG_L4zSrNzR0bFyAgny+sSEUb_kPw@mail.gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/char/cmsdk-apb-uart.c b/hw/char/cmsdk-apb-uart.c
index 9c0929d8a243687e83a459c7e45b3f1c28e885f4..ddfbb25c249972b6e25c6e629f9845d7b6c87b5a 100644 (file)
--- a/hw/char/cmsdk-apb-uart.c
+++ b/hw/char/cmsdk-apb-uart.c
@@ -157,6 +157,7 @@ static uint64_t uart_read(void *opaque, hwaddr offset, unsigned size)
         r = s->rxbuf;
         s->state &= ~R_STATE_RXFULL_MASK;
         cmsdk_apb_uart_update(s);
+        qemu_chr_fe_accept_input(&s->chr);
         break;
     case A_STATE:
         r = s->state;