8063396bf3
This converts existing DECLARE_INSTANCE_CHECKER usage to OBJECT_DECLARE_SIMPLE_TYPE when possible. $ ./scripts/codeconverter/converter.py -i \ --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20200916182519.415636-6-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
/*
|
|
* M41T80 serial rtc emulation
|
|
*
|
|
* Copyright (c) 2018 BALATON Zoltan
|
|
*
|
|
* This work is licensed under the GNU GPL license version 2 or later.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu-common.h"
|
|
#include "qemu/log.h"
|
|
#include "qemu/module.h"
|
|
#include "qemu/timer.h"
|
|
#include "qemu/bcd.h"
|
|
#include "hw/i2c/i2c.h"
|
|
#include "qom/object.h"
|
|
|
|
#define TYPE_M41T80 "m41t80"
|
|
OBJECT_DECLARE_SIMPLE_TYPE(M41t80State, M41T80)
|
|
|
|
struct M41t80State {
|
|
I2CSlave parent_obj;
|
|
int8_t addr;
|
|
};
|
|
|
|
static void m41t80_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
M41t80State *s = M41T80(dev);
|
|
|
|
s->addr = -1;
|
|
}
|
|
|
|
static int m41t80_send(I2CSlave *i2c, uint8_t data)
|
|
{
|
|
M41t80State *s = M41T80(i2c);
|
|
|
|
if (s->addr < 0) {
|
|
s->addr = data;
|
|
} else {
|
|
s->addr++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static uint8_t m41t80_recv(I2CSlave *i2c)
|
|
{
|
|
M41t80State *s = M41T80(i2c);
|
|
struct tm now;
|
|
qemu_timeval tv;
|
|
|
|
if (s->addr < 0) {
|
|
s->addr = 0;
|
|
}
|
|
if (s->addr >= 1 && s->addr <= 7) {
|
|
qemu_get_timedate(&now, -1);
|
|
}
|
|
switch (s->addr++) {
|
|
case 0:
|
|
qemu_gettimeofday(&tv);
|
|
return to_bcd(tv.tv_usec / 10000);
|
|
case 1:
|
|
return to_bcd(now.tm_sec);
|
|
case 2:
|
|
return to_bcd(now.tm_min);
|
|
case 3:
|
|
return to_bcd(now.tm_hour);
|
|
case 4:
|
|
return to_bcd(now.tm_wday);
|
|
case 5:
|
|
return to_bcd(now.tm_mday);
|
|
case 6:
|
|
return to_bcd(now.tm_mon + 1);
|
|
case 7:
|
|
return to_bcd(now.tm_year % 100);
|
|
case 8 ... 19:
|
|
qemu_log_mask(LOG_UNIMP, "%s: unimplemented register: %d\n",
|
|
__func__, s->addr - 1);
|
|
return 0;
|
|
default:
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid register: %d\n",
|
|
__func__, s->addr - 1);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int m41t80_event(I2CSlave *i2c, enum i2c_event event)
|
|
{
|
|
M41t80State *s = M41T80(i2c);
|
|
|
|
if (event == I2C_START_SEND) {
|
|
s->addr = -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void m41t80_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
|
|
|
|
dc->realize = m41t80_realize;
|
|
sc->send = m41t80_send;
|
|
sc->recv = m41t80_recv;
|
|
sc->event = m41t80_event;
|
|
}
|
|
|
|
static const TypeInfo m41t80_info = {
|
|
.name = TYPE_M41T80,
|
|
.parent = TYPE_I2C_SLAVE,
|
|
.instance_size = sizeof(M41t80State),
|
|
.class_init = m41t80_class_init,
|
|
};
|
|
|
|
static void m41t80_register_types(void)
|
|
{
|
|
type_register_static(&m41t80_info);
|
|
}
|
|
|
|
type_init(m41t80_register_types)
|