1 /* 2 * ASPEED AST2400 Timer 3 * 4 * Andrew Jeffery <andrew@aj.id.au> 5 * 6 * Copyright (C) 2016 IBM Corp. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License along 19 * with this program; if not, write to the Free Software Foundation, Inc., 20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 21 */ 22 #ifndef ASPEED_TIMER_H 23 #define ASPEED_TIMER_H 24 25 #include "qemu/timer.h" 26 27 #define ASPEED_TIMER(obj) \ 28 OBJECT_CHECK(AspeedTimerCtrlState, (obj), TYPE_ASPEED_TIMER); 29 #define TYPE_ASPEED_TIMER "aspeed.timer" 30 #define ASPEED_TIMER_NR_TIMERS 8 31 32 typedef struct AspeedTimer { 33 qemu_irq irq; 34 35 uint8_t id; 36 QEMUTimer timer; 37 38 /** 39 * Track the line level as the ASPEED timers implement edge triggered 40 * interrupts, signalling with both the rising and falling edge. 41 */ 42 int32_t level; 43 uint32_t reload; 44 uint32_t match[2]; 45 uint64_t start; 46 } AspeedTimer; 47 48 typedef struct AspeedTimerCtrlState { 49 /*< private >*/ 50 SysBusDevice parent; 51 52 /*< public >*/ 53 MemoryRegion iomem; 54 55 uint32_t ctrl; 56 uint32_t ctrl2; 57 AspeedTimer timers[ASPEED_TIMER_NR_TIMERS]; 58 } AspeedTimerCtrlState; 59 60 #endif /* ASPEED_TIMER_H */ 61