| 1 | /* |
| 2 | * QEMU lowRISC Ibex Timer device |
| 3 | * |
| 4 | * Copyright (c) 2021 Western Digital |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #ifndef HW_IBEX_TIMER_H |
| 26 | #define HW_IBEX_TIMER_H |
| 27 | |
| 28 | #include "hw/core/sysbus.h" |
| 29 | |
| 30 | #define TYPE_IBEX_TIMER "ibex-timer" |
| 31 | OBJECT_DECLARE_SIMPLE_TYPE(IbexTimerState, IBEX_TIMER) |
| 32 | |
| 33 | struct IbexTimerState { |
| 34 | /* <private> */ |
| 35 | SysBusDevice parent_obj; |
| 36 | uint64_t mtimecmp; |
| 37 | QEMUTimer *mtimer; /* Internal timer for M-mode interrupt */ |
| 38 | |
| 39 | /* <public> */ |
| 40 | MemoryRegion mmio; |
| 41 | |
| 42 | uint32_t timer_ctrl; |
| 43 | uint32_t timer_cfg0; |
| 44 | uint32_t timer_compare_lower0; |
| 45 | uint32_t timer_compare_upper0; |
| 46 | uint32_t timer_intr_enable; |
| 47 | uint32_t timer_intr_state; |
| 48 | |
| 49 | uint32_t timebase_freq; |
| 50 | |
| 51 | qemu_irq irq; |
| 52 | |
| 53 | qemu_irq m_timer_irq; |
| 54 | }; |
| 55 | #endif /* HW_IBEX_TIMER_H */ |