| 1 | /* |
| 2 | * ARM CMSDK APB timer emulation |
| 3 | * |
| 4 | * Copyright (c) 2017 Linaro Limited |
| 5 | * Written by Peter Maydell |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 or |
| 9 | * (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #ifndef CMSDK_APB_TIMER_H |
| 13 | #define CMSDK_APB_TIMER_H |
| 14 | |
| 15 | #include "hw/core/sysbus.h" |
| 16 | #include "hw/core/ptimer.h" |
| 17 | #include "hw/core/clock.h" |
| 18 | #include "qom/object.h" |
| 19 | |
| 20 | #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer" |
| 21 | OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER) |
| 22 | |
| 23 | /* |
| 24 | * QEMU interface: |
| 25 | * + Clock input "pclk": clock for the timer |
| 26 | * + sysbus MMIO region 0: the register bank |
| 27 | * + sysbus IRQ 0: timer interrupt TIMERINT |
| 28 | */ |
| 29 | struct CMSDKAPBTimer { |
| 30 | /*< private >*/ |
| 31 | SysBusDevice parent_obj; |
| 32 | |
| 33 | /*< public >*/ |
| 34 | MemoryRegion iomem; |
| 35 | qemu_irq timerint; |
| 36 | struct ptimer_state *timer; |
| 37 | Clock *pclk; |
| 38 | |
| 39 | uint32_t ctrl; |
| 40 | uint32_t value; |
| 41 | uint32_t reload; |
| 42 | uint32_t intstatus; |
| 43 | }; |
| 44 | |
| 45 | #endif |