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i.MX: Standardize i.MX serial debug. 

The goal is to have debug code always compiled during build.

We standardize all debug output on the following format:

[QOM_TYPE_NAME]reporting_function: debug message

We also replace IPRINTF with qemu_log_mask(). The qemu_log_mask() output
is following the same format as the above debug.

Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Message-id: 47b8759b251d356c633faf7ea34f897f340aea4e.1445781957.git.jcd@tribudubois.net
[PMM: Drop attempt to print the ram_addr of a memory region in
 one DPRINTF, which (a) was using the wrong format string so
 didn't build on 32-bit and (b) was incorrectly looking at a
 private field of a MemoryRegion struct]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jean-Christophe Dubois 2015-10-25 15:16:06 +01:00 committed by Peter Maydell
parent 4b280b726a
commit 8ccce77c04
1 changed files with 24 additions and 26 deletions
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50
hw/char/imx_serial.c
View File

@ -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");
}
}