summaryrefslogtreecommitdiffstats
path: root/hw
diff options
context:
space:
mode:
Diffstat (limited to 'hw')
-rw-r--r--hw/char/imx_serial.c50
1 files changed, 24 insertions, 26 deletions
diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c
index f0c4c72..f30f9c2 100644
--- a/hw/char/imx_serial.c
+++ b/hw/char/imx_serial.c
@@ -22,25 +22,17 @@
#include "sysemu/sysemu.h"
#include "sysemu/char.h"
-//#define DEBUG_SERIAL 1
-#ifdef DEBUG_SERIAL
-#define DPRINTF(fmt, args...) \
-do { printf("%s: " fmt , TYPE_IMX_SERIAL, ##args); } while (0)
-#else
-#define DPRINTF(fmt, args...) do {} while (0)
+#ifndef DEBUG_IMX_UART
+#define DEBUG_IMX_UART 0
#endif
-/*
- * Define to 1 for messages about attempts to
- * access unimplemented registers or similar.
- */
-//#define DEBUG_IMPLEMENTATION 1
-#ifdef DEBUG_IMPLEMENTATION
-# define IPRINTF(fmt, args...) \
- do { fprintf(stderr, "%s: " fmt, TYPE_IMX_SERIAL, ##args); } while (0)
-#else
-# define IPRINTF(fmt, args...) do {} while (0)
-#endif
+#define DPRINTF(fmt, args...) \
+ do { \
+ if (DEBUG_IMX_UART) { \
+ fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_SERIAL, \
+ __func__, ##args); \
+ } \
+ } while (0)
static const VMStateDescription vmstate_imx_serial = {
.name = TYPE_IMX_SERIAL,
@@ -115,7 +107,8 @@ static uint64_t imx_serial_read(void *opaque, hwaddr offset,
IMXSerialState *s = (IMXSerialState *)opaque;
uint32_t c;
- DPRINTF("read(offset=%x)\n", offset >> 2);
+ DPRINTF("read(offset=0x%" HWADDR_PRIx ")\n", offset);
+
switch (offset >> 2) {
case 0x0: /* URXD */
c = s->readbuff;
@@ -167,7 +160,8 @@ static uint64_t imx_serial_read(void *opaque, hwaddr offset,
return 0x0; /* TODO */
default:
- IPRINTF("%s: bad offset: 0x%x\n", __func__, (int)offset);
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ HWADDR_PRIx "\n", TYPE_IMX_SERIAL, __func__, offset);
return 0;
}
}
@@ -178,9 +172,8 @@ static void imx_serial_write(void *opaque, hwaddr offset,
IMXSerialState *s = (IMXSerialState *)opaque;
unsigned char ch;
- DPRINTF("write(offset=%x, value = %x) to %s\n",
- offset >> 2,
- (unsigned int)value, s->chr ? s->chr->label : "NODEV");
+ DPRINTF("write(offset=0x%" HWADDR_PRIx ", value = 0x%x) to %s\n",
+ offset, (unsigned int)value, s->chr ? s->chr->label : "NODEV");
switch (offset >> 2) {
case 0x10: /* UTXD */
@@ -198,7 +191,9 @@ static void imx_serial_write(void *opaque, hwaddr offset,
case 0x20: /* UCR1 */
s->ucr1 = value & 0xffff;
+
DPRINTF("write(ucr1=%x)\n", (unsigned int)value);
+
imx_update(s);
break;
@@ -266,12 +261,14 @@ static void imx_serial_write(void *opaque, hwaddr offset,
case 0x2d: /* UTS1 */
case 0x23: /* UCR4 */
- IPRINTF("Unimplemented Register %x written to\n", offset >> 2);
+ qemu_log_mask(LOG_UNIMP, "[%s]%s: Unimplemented reg 0x%"
+ HWADDR_PRIx "\n", TYPE_IMX_SERIAL, __func__, offset);
/* TODO */
break;
default:
- IPRINTF("%s: Bad offset 0x%x\n", __func__, (int)offset);
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ HWADDR_PRIx "\n", TYPE_IMX_SERIAL, __func__, offset);
}
}
@@ -284,7 +281,9 @@ static int imx_can_receive(void *opaque)
static void imx_put_data(void *opaque, uint32_t value)
{
IMXSerialState *s = (IMXSerialState *)opaque;
+
DPRINTF("received char\n");
+
s->usr1 |= USR1_RRDY;
s->usr2 |= USR2_RDR;
s->uts1 &= ~UTS1_RXEMPTY;
@@ -319,8 +318,7 @@ static void imx_serial_realize(DeviceState *dev, Error **errp)
qemu_chr_add_handlers(s->chr, imx_can_receive, imx_receive,
imx_event, s);
} else {
- DPRINTF("No char dev for uart at 0x%lx\n",
- (unsigned long)s->iomem.ram_addr);
+ DPRINTF("No char dev for uart\n");
}
}
OpenPOWER on IntegriCloud