| 1 | /* |
| 2 | * Luminary Micro Stellaris General Purpose Timer Module |
| 3 | * |
| 4 | * Copyright (c) 2006 CodeSourcery. |
| 5 | * Written by Paul Brook |
| 6 | * |
| 7 | * This code is licensed under the GPL. |
| 8 | */ |
| 9 | |
| 10 | #ifndef HW_TIMER_STELLARIS_GPTM_H |
| 11 | #define HW_TIMER_STELLARIS_GPTM_H |
| 12 | |
| 13 | #include "qom/object.h" |
| 14 | #include "hw/core/sysbus.h" |
| 15 | #include "hw/core/irq.h" |
| 16 | #include "hw/core/clock.h" |
| 17 | |
| 18 | #define TYPE_STELLARIS_GPTM "stellaris-gptm" |
| 19 | OBJECT_DECLARE_SIMPLE_TYPE(gptm_state, STELLARIS_GPTM) |
| 20 | |
| 21 | /* |
| 22 | * QEMU interface: |
| 23 | * + sysbus MMIO region 0: register bank |
| 24 | * + sysbus IRQ 0: timer interrupt |
| 25 | * + unnamed GPIO output 0: trigger output for the ADC |
| 26 | * + Clock input "clk": the 32-bit countdown timer runs at this speed |
| 27 | */ |
| 28 | struct gptm_state { |
| 29 | SysBusDevice parent_obj; |
| 30 | |
| 31 | MemoryRegion iomem; |
| 32 | uint32_t config; |
| 33 | uint32_t mode[2]; |
| 34 | uint32_t control; |
| 35 | uint32_t state; |
| 36 | uint32_t mask; |
| 37 | uint32_t load[2]; |
| 38 | uint32_t match[2]; |
| 39 | uint32_t prescale[2]; |
| 40 | uint32_t match_prescale[2]; |
| 41 | uint32_t rtc; |
| 42 | int64_t tick[2]; |
| 43 | struct gptm_state *opaque[2]; |
| 44 | QEMUTimer *timer[2]; |
| 45 | /* The timers have an alternate output used to trigger the ADC. */ |
| 46 | qemu_irq trigger; |
| 47 | qemu_irq irq; |
| 48 | Clock *clk; |
| 49 | }; |
| 50 | |
| 51 | #endif |