48 lines
956 B
C++
48 lines
956 B
C++
/*
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* \brief Drivers quirks
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* \author Sebastian Sumpf
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* \date 2012-11-27
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*/
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/*
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* Copyright (C) 2012-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* OSS includes */
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extern "C" {
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#include <oss_config.h>
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}
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#include <quirks.h>
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/* Genode includes */
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#include <base/printf.h>
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/**
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* The Qemu es1370 emulation does not support 'inb' for the serial interface
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* control register (ports 0x20 - 0x23)
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*/
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static unsigned char qemu_es1370_inb_quirk(_oss_device_t *osdev, addr_t port)
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{
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unsigned base = osdev->res[0].base;
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unsigned addr = port - base;
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if (addr < 0x20 && addr > 0x23)
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return dde_kit_inb(port);
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unsigned val = dde_kit_inl(base + 0x20) >> (8 * (addr - 0x20));
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return val & 0xff;
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}
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void setup_quirks(struct oss_driver *drv)
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{
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if (!strcmp(drv->name, "oss_audiopci"))
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drv->inb_quirk = qemu_es1370_inb_quirk;
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}
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