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/qdev-properties.h" 16 #include "hw/sysbus.h" 17 #include "hw/ptimer.h" 18 #include "hw/clock.h" 19 #include "qom/object.h" 20 21 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer" 22 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER) 23 24 /* 25 * QEMU interface: 26 * + Clock input "pclk": clock for the timer 27 * + sysbus MMIO region 0: the register bank 28 * + sysbus IRQ 0: timer interrupt TIMERINT 29 */ 30 struct CMSDKAPBTimer { 31 /*< private >*/ 32 SysBusDevice parent_obj; 33 34 /*< public >*/ 35 MemoryRegion iomem; 36 qemu_irq timerint; 37 struct ptimer_state *timer; 38 Clock *pclk; 39 40 uint32_t ctrl; 41 uint32_t value; 42 uint32_t reload; 43 uint32_t intstatus; 44 }; 45 46 #endif 47