From: Aurelien Jarno <aurelien@aurel32.net>
Date: Sat, 6 Mar 2010 21:19:53 +0000 (+0100)
Subject: hw/serial.c: fix THRE interrupt clearing
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~8545
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cdee7bdfee37b774c80f698d2d4338670db7c6cb;p=sdk%2Femulator%2Fqemu.git

hw/serial.c: fix THRE interrupt clearing

UART_IIR_THRI is not a mask, but a possible value for the IIR ID.
Use UART_IIR_ID to extract this value.

Broken by commit 71e605f80313a632cc6714cde7bd240042dbdd95.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---

diff --git a/hw/serial.c b/hw/serial.c
index 586c366..f3ec36a 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -541,7 +541,7 @@ static uint32_t serial_ioport_read(void *opaque, uint32_t addr)
         break;
     case 2:
         ret = s->iir;
-        if (ret & UART_IIR_THRI) {
+        if ((ret & UART_IIR_ID) == UART_IIR_THRI) {
             s->thr_ipending = 0;
             serial_update_irq(s);
         }