e6c8bc291a
LPC devices. Among other things, the LPC serial ports now appear as ACPI devices. - Move the info for the top-level PCI bus into the PCI emulation code and add ResourceProducer entries for the memory ranges decoded by the bus for memory BARs. - Add a framework to allow each PCI emulation driver to optionally write an entry into the DSDT under the \_SB_.PCI0 namespace. The LPC driver uses this to write a node for the LPC bus (\_SB_.PCI0.ISA). - Add a linker set to allow any LPC devices to write entries into the DSDT below the LPC node. - Move the existing DSDT block for the RTC to the RTC driver. - Add DSDT nodes for the AT PIC, the 8254 ISA timer, and the LPC UART devices. - Add a "SuperIO" device under the LPC node to claim "system resources" aling with a linker set to allow various drivers to add IO or memory ranges that should be claimed as a system resource. - Add system resource entries for the extended RTC IO range, the registers used for ACPI power management, the ELCR, PCI interrupt routing register, and post data register. - Add various helper routines for generating DSDT entries. Reviewed by: neel (earlier version)
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "acpi.h"
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#include "inout.h"
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#include "pci_lpc.h"
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#define IO_ICU1 0x20
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#define IO_ICU2 0xA0
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#define ICU_IMR_OFFSET 1
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static int
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atpic_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
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uint32_t *eax, void *arg)
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{
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if (bytes != 1)
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return (-1);
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if (in) {
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if (port & ICU_IMR_OFFSET) {
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/* all interrupts masked */
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*eax = 0xff;
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} else {
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*eax = 0x00;
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}
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}
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/* Pretend all writes to the 8259 are alright */
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return (0);
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}
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INOUT_PORT(atpic, IO_ICU1, IOPORT_F_INOUT, atpic_handler);
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INOUT_PORT(atpic, IO_ICU1 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler);
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INOUT_PORT(atpic, IO_ICU2, IOPORT_F_INOUT, atpic_handler);
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INOUT_PORT(atpic, IO_ICU2 + ICU_IMR_OFFSET, IOPORT_F_INOUT, atpic_handler);
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static void
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atpic_dsdt(void)
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{
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dsdt_line("");
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dsdt_line("Device (PIC)");
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dsdt_line("{");
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dsdt_line(" Name (_HID, EisaId (\"PNP0000\"))");
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dsdt_line(" Name (_CRS, ResourceTemplate ()");
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dsdt_line(" {");
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dsdt_indent(2);
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dsdt_fixed_ioport(IO_ICU1, 2);
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dsdt_fixed_ioport(IO_ICU2, 2);
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dsdt_fixed_irq(2);
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dsdt_unindent(2);
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dsdt_line(" })");
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dsdt_line("}");
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}
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LPC_DSDT(atpic_dsdt);
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