From b1277b03d46b2aeb22f0829aaa1c0f5fe6dd38fe Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Wed, 1 Feb 2012 20:31:39 +0100 Subject: i8254: Factor out interface header Move the public interface of the PIT into its own header file and update all users. Signed-off-by: Jan Kiszka Signed-off-by: Anthony Liguori --- hw/i8254.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 hw/i8254.h (limited to 'hw/i8254.h') diff --git a/hw/i8254.h b/hw/i8254.h new file mode 100644 index 0000000000..cd3111c550 --- /dev/null +++ b/hw/i8254.h @@ -0,0 +1,54 @@ +/* + * QEMU 8253/8254 interval timer emulation + * + * Copyright (c) 2003-2004 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_I8254_H +#define HW_I8254_H + +#include "hw.h" +#include "isa.h" + +#define PIT_FREQ 1193182 + +static inline ISADevice *pit_init(ISABus *bus, int base, int irq) +{ + ISADevice *dev; + + dev = isa_create(bus, "isa-pit"); + qdev_prop_set_uint32(&dev->qdev, "iobase", base); + qdev_prop_set_uint32(&dev->qdev, "irq", irq); + qdev_init_nofail(&dev->qdev); + + return dev; +} + +void pit_set_gate(ISADevice *dev, int channel, int val); +int pit_get_gate(ISADevice *dev, int channel); +int pit_get_initial_count(ISADevice *dev, int channel); +int pit_get_mode(ISADevice *dev, int channel); +int pit_get_out(ISADevice *dev, int channel, int64_t current_time); + +void hpet_pit_disable(void); +void hpet_pit_enable(void); + +#endif /* !HW_I8254_H */ -- cgit v1.2.3