mirror of https://gitee.com/openkylin/linux.git
44 lines
956 B
C
44 lines
956 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* parport.h: platform-specific PC-style parport initialisation
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*
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* Copyright (C) 1999, 2000 Tim Waugh <tim@cyberelk.demon.co.uk>
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*
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* This file should only be included by drivers/parport/parport_pc.c.
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*/
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#ifndef _ASM_POWERPC_PARPORT_H
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#define _ASM_POWERPC_PARPORT_H
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#ifdef __KERNEL__
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#include <asm/prom.h>
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static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
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{
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struct device_node *np;
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const u32 *prop;
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u32 io1, io2;
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int propsize;
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int count = 0;
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int virq;
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for_each_compatible_node(np, "parallel", "pnpPNP,400") {
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prop = of_get_property(np, "reg", &propsize);
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if (!prop || propsize > 6*sizeof(u32))
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continue;
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io1 = prop[1]; io2 = prop[2];
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virq = irq_of_parse_and_map(np, 0);
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if (!virq)
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continue;
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if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0)
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!= NULL)
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count++;
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}
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return count;
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}
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#endif /* __KERNEL__ */
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#endif /* !(_ASM_POWERPC_PARPORT_H) */
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