projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 92055797 PA |
1 | /* |
| 2 | * QEMU ICH9 TCO emulation | |
| 3 | * | |
| 4 | * Copyright (c) 2015 Paulo Alcantara <[email protected]> | |
| 5 | * | |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
| 7 | * See the COPYING file in the top-level directory. | |
| 8 | */ | |
| 9 | #ifndef HW_ACPI_TCO_H | |
| 10 | #define HW_ACPI_TCO_H | |
| 11 | ||
| 12 | #include "qemu/typedefs.h" | |
| 13 | #include "qemu-common.h" | |
| 14 | ||
| 15 | /* As per ICH9 spec, the internal timer has an error of ~0.6s on every tick */ | |
| 16 | #define TCO_TICK_NSEC 600000000LL | |
| 17 | ||
| 18 | /* TCO I/O register offsets */ | |
| 19 | enum { | |
| 20 | TCO_RLD = 0x00, | |
| 21 | TCO_DAT_IN = 0x02, | |
| 22 | TCO_DAT_OUT = 0x03, | |
| 23 | TCO1_STS = 0x04, | |
| 24 | TCO2_STS = 0x06, | |
| 25 | TCO1_CNT = 0x08, | |
| 26 | TCO2_CNT = 0x0a, | |
| 27 | TCO_MESSAGE1 = 0x0c, | |
| 28 | TCO_MESSAGE2 = 0x0d, | |
| 29 | TCO_WDCNT = 0x0e, | |
| 30 | SW_IRQ_GEN = 0x10, | |
| 31 | TCO_TMR = 0x12, | |
| 32 | }; | |
| 33 | ||
| 34 | /* TCO I/O register control/status bits */ | |
| 35 | enum { | |
| 36 | SW_TCO_SMI = 1 << 1, | |
| 37 | TCO_INT_STS = 1 << 2, | |
| 38 | TCO_LOCK = 1 << 12, | |
| 39 | TCO_TMR_HLT = 1 << 11, | |
| 40 | TCO_TIMEOUT = 1 << 3, | |
| 41 | TCO_SECOND_TO_STS = 1 << 1, | |
| 42 | TCO_BOOT_STS = 1 << 2, | |
| 43 | }; | |
| 44 | ||
| 45 | /* TCO I/O registers mask bits */ | |
| 46 | enum { | |
| 47 | TCO_RLD_MASK = 0x3ff, | |
| 48 | TCO1_STS_MASK = 0xe870, | |
| 49 | TCO2_STS_MASK = 0xfff8, | |
| 50 | TCO1_CNT_MASK = 0xfeff, | |
| 51 | TCO_TMR_MASK = 0x3ff, | |
| 52 | }; | |
| 53 | ||
| 54 | typedef struct TCOIORegs { | |
| 55 | struct { | |
| 56 | uint16_t rld; | |
| 57 | uint8_t din; | |
| 58 | uint8_t dout; | |
| 59 | uint16_t sts1; | |
| 60 | uint16_t sts2; | |
| 61 | uint16_t cnt1; | |
| 62 | uint16_t cnt2; | |
| 63 | uint8_t msg1; | |
| 64 | uint8_t msg2; | |
| 65 | uint8_t wdcnt; | |
| 66 | uint16_t tmr; | |
| 67 | } tco; | |
| 68 | uint8_t sw_irq_gen; | |
| 69 | ||
| 70 | QEMUTimer *tco_timer; | |
| 71 | int64_t expire_time; | |
| 72 | uint8_t timeouts_no; | |
| 73 | ||
| 74 | MemoryRegion io; | |
| 75 | } TCOIORegs; | |
| 76 | ||
| 77 | /* tco.c */ | |
| 78 | void acpi_pm_tco_init(TCOIORegs *tr, MemoryRegion *parent); | |
| 79 | ||
| 80 | extern const VMStateDescription vmstate_tco_io_sts; | |
| 81 | ||
| 82 | #endif /* HW_ACPI_TCO_H */ |