diff options
| -rw-r--r-- | hw/char/pl011.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/char/pl011.c b/hw/char/pl011.c index 06ce851044..12a2d4bc7b 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -85,6 +85,7 @@ DeviceState *pl011_create(hwaddr addr, qemu_irq irq, Chardev *chr) #define CR_OUT1 (1 << 12) #define CR_RTS (1 << 11) #define CR_DTR (1 << 10) +#define CR_RXE (1 << 9) #define CR_TXE (1 << 8) #define CR_LBE (1 << 7) #define CR_UARTEN (1 << 0) @@ -487,6 +488,14 @@ static int pl011_can_receive(void *opaque) PL011State *s = (PL011State *)opaque; int r; + if (!(s->cr & CR_UARTEN)) { + qemu_log_mask(LOG_GUEST_ERROR, + "PL011 receiving data on disabled UART\n"); + } + if (!(s->cr & CR_RXE)) { + qemu_log_mask(LOG_GUEST_ERROR, + "PL011 receiving data on disabled RX UART\n"); + } r = s->read_count < pl011_get_fifo_depth(s); trace_pl011_can_receive(s->lcr, s->read_count, r); return r; |