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+/*
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+ * QEMU 8253/8254 interval timer emulation
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+ *
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+ * Copyright (c) 2003-2004 Fabrice Bellard
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ * copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+ * THE SOFTWARE.
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+ */
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+
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+#ifndef HW_I8254_H
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+#define HW_I8254_H
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+
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+#include "hw.h"
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+#include "isa.h"
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+
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+#define PIT_FREQ 1193182
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+
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+static inline ISADevice *pit_init(ISABus *bus, int base, int irq)
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+{
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+ ISADevice *dev;
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+
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+ dev = isa_create(bus, "isa-pit");
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+ qdev_prop_set_uint32(&dev->qdev, "iobase", base);
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+ qdev_prop_set_uint32(&dev->qdev, "irq", irq);
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+ qdev_init_nofail(&dev->qdev);
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+
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+ return dev;
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+}
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+
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+void pit_set_gate(ISADevice *dev, int channel, int val);
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+int pit_get_gate(ISADevice *dev, int channel);
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+int pit_get_initial_count(ISADevice *dev, int channel);
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+int pit_get_mode(ISADevice *dev, int channel);
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+int pit_get_out(ISADevice *dev, int channel, int64_t current_time);
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+
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+void hpet_pit_disable(void);
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+void hpet_pit_enable(void);
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+
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+#endif /* !HW_I8254_H */
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