873b4d3f05
The speaker device needs pointer to ISA PIT device to operate. But according to qdev-properties.h, properties of pointer type should be avoided. It seems a link type property is a good substitution. Signed-off-by: Efimov Vasily <real@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* QEMU PC speaker emulation
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*
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* Copyright (c) 2006 Joachim Henke
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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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#ifndef HW_PCSPK_H
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#define HW_PCSPK_H
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#include "hw/hw.h"
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#include "hw/isa/isa.h"
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#define TYPE_PC_SPEAKER "isa-pcspk"
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static inline ISADevice *pcspk_init(ISABus *bus, ISADevice *pit)
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{
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DeviceState *dev;
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ISADevice *isadev;
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isadev = isa_create(bus, TYPE_PC_SPEAKER);
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dev = DEVICE(isadev);
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qdev_prop_set_uint32(dev, "iobase", 0x61);
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object_property_set_link(OBJECT(dev), OBJECT(pit), "pit", NULL);
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qdev_init_nofail(dev);
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return isadev;
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}
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#endif /* !HW_PCSPK_H */
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