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/sysbus.h" 16 #include "hw/ptimer.h" 17 #include "hw/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 46