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David Vrabel
82639998a5
The emacs variable to set the C style from a local variable block is c-file-style, not c-set-style. Signed-off-by: David Vrabel <david.vrabel@citrix.com
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
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* pir.c: Support for genrating $PIR tables.
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*
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* Copyright (c) 2011 Citrix Systems Inc
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include "config.h"
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#include "pir_types.h"
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#include "util.h"
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/*
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* The structure of these tables is described in
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* http://www.microsoft.com/taiwan/whdc/archive/pciirq.mspx
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*/
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unsigned long create_pir_tables(void)
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{
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int length = sizeof(struct pir_table)
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+ sizeof(struct pir_slot) * NR_PIR_SLOTS;
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struct pir_table *pir = scratch_alloc(length, 0);
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int i, checksum;
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memset(pir, 0, length);
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memcpy(pir->signature, "$PIR", 4);
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pir->version = 0x0100;
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pir->length = length;
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pir->router_bus = 0;
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pir->router_devfn = PCI_ISA_DEVFN;
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pir->router_vid = 0x8086;
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pir->router_did = 0x122e;
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pir->pci_irqs = 0x0000;
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for ( i = 0 ; i < NR_PIR_SLOTS; i++ )
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{
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struct pir_slot *slot = &pir->slots[i];
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slot->slot = i;
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slot->bus = 0;
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slot->dev = i<<3;
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slot->link_a = 0x60 + (i+1)%4;
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slot->bitmap_a = PCI_ISA_IRQ_MASK;
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slot->link_b = 0x60 + (i+2)%4;
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slot->bitmap_b = PCI_ISA_IRQ_MASK;
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slot->link_c = 0x60 + (i+3)%4;
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slot->bitmap_c = PCI_ISA_IRQ_MASK;
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slot->link_d = 0x60 + (i+4)%4;
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slot->bitmap_d = PCI_ISA_IRQ_MASK;
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}
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checksum = 0;
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for ( i = 0; i < length; i++ )
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checksum += ((int8_t *)pir)[i];
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pir->checksum = -checksum;
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return (unsigned long)pir;
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}
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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