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 #include "hw/misc/aspeed_scu.h" 27 28 #define ASPEED_TIMER(obj) \ 29 OBJECT_CHECK(AspeedTimerCtrlState, (obj), TYPE_ASPEED_TIMER); 30 #define TYPE_ASPEED_TIMER "aspeed.timer" 31 #define ASPEED_TIMER_NR_TIMERS 8 32 33 typedef struct AspeedTimer { 34 qemu_irq irq; 35 36 uint8_t id; 37 QEMUTimer timer; 38 39 /** 40 * Track the line level as the ASPEED timers implement edge triggered 41 * interrupts, signalling with both the rising and falling edge. 42 */ 43 int32_t level; 44 uint32_t reload; 45 uint32_t match[2]; 46 uint64_t start; 47 } AspeedTimer; 48 49 typedef struct AspeedTimerCtrlState { 50 /*< private >*/ 51 SysBusDevice parent; 52 53 /*< public >*/ 54 MemoryRegion iomem; 55 56 uint32_t ctrl; 57 uint32_t ctrl2; 58 AspeedTimer timers[ASPEED_TIMER_NR_TIMERS]; 59 60 AspeedSCUState *scu; 61 } AspeedTimerCtrlState; 62 63 #endif /* ASPEED_TIMER_H */ 64