mirror of
https://github.com/qemu/qemu.git
synced 2024-12-28 14:43:49 +08:00
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
|
/*
|
||
|
|
* QEMU ICH9 TCO emulation
|
||
|
|
*
|
||
|
|
* Copyright (c) 2015 Paulo Alcantara <pcacjr@zytor.com>
|
||
|
|
*
|
||
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
||
|
|
* See the COPYING file in the top-level directory.
|
||
|
|
*/
|
||
|
|
#ifndef HW_ACPI_TCO_H
|
||
|
|
#define HW_ACPI_TCO_H
|
||
|
|
|
||
|
|
#include "qemu-common.h"
|
||
|
|
|
||
|
|
/* As per ICH9 spec, the internal timer has an error of ~0.6s on every tick */
|
||
|
|
#define TCO_TICK_NSEC 600000000LL
|
||
|
|
|
||
|
|
/* TCO I/O register offsets */
|
||
|
|
enum {
|
||
|
|
TCO_RLD = 0x00,
|
||
|
|
TCO_DAT_IN = 0x02,
|
||
|
|
TCO_DAT_OUT = 0x03,
|
||
|
|
TCO1_STS = 0x04,
|
||
|
|
TCO2_STS = 0x06,
|
||
|
|
TCO1_CNT = 0x08,
|
||
|
|
TCO2_CNT = 0x0a,
|
||
|
|
TCO_MESSAGE1 = 0x0c,
|
||
|
|
TCO_MESSAGE2 = 0x0d,
|
||
|
|
TCO_WDCNT = 0x0e,
|
||
|
|
SW_IRQ_GEN = 0x10,
|
||
|
|
TCO_TMR = 0x12,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* TCO I/O register control/status bits */
|
||
|
|
enum {
|
||
|
|
SW_TCO_SMI = 1 << 1,
|
||
|
|
TCO_INT_STS = 1 << 2,
|
||
|
|
TCO_LOCK = 1 << 12,
|
||
|
|
TCO_TMR_HLT = 1 << 11,
|
||
|
|
TCO_TIMEOUT = 1 << 3,
|
||
|
|
TCO_SECOND_TO_STS = 1 << 1,
|
||
|
|
TCO_BOOT_STS = 1 << 2,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* TCO I/O registers mask bits */
|
||
|
|
enum {
|
||
|
|
TCO_RLD_MASK = 0x3ff,
|
||
|
|
TCO1_STS_MASK = 0xe870,
|
||
|
|
TCO2_STS_MASK = 0xfff8,
|
||
|
|
TCO1_CNT_MASK = 0xfeff,
|
||
|
|
TCO_TMR_MASK = 0x3ff,
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct TCOIORegs {
|
||
|
|
struct {
|
||
|
|
uint16_t rld;
|
||
|
|
uint8_t din;
|
||
|
|
uint8_t dout;
|
||
|
|
uint16_t sts1;
|
||
|
|
uint16_t sts2;
|
||
|
|
uint16_t cnt1;
|
||
|
|
uint16_t cnt2;
|
||
|
|
uint8_t msg1;
|
||
|
|
uint8_t msg2;
|
||
|
|
uint8_t wdcnt;
|
||
|
|
uint16_t tmr;
|
||
|
|
} tco;
|
||
|
|
uint8_t sw_irq_gen;
|
||
|
|
|
||
|
|
QEMUTimer *tco_timer;
|
||
|
|
int64_t expire_time;
|
||
|
|
uint8_t timeouts_no;
|
||
|
|
|
||
|
|
MemoryRegion io;
|
||
|
|
} TCOIORegs;
|
||
|
|
|
||
|
|
/* tco.c */
|
||
|
|
void acpi_pm_tco_init(TCOIORegs *tr, MemoryRegion *parent);
|
||
|
|
|
||
|
|
extern const VMStateDescription vmstate_tco_io_sts;
|
||
|
|
|
||
|
|
#endif /* HW_ACPI_TCO_H */
|