LXR linux/arch/powerpc/include/asm/parport.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * parport.h: platform-specific PC-style parport initialisation
   4 *
   5 * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
   6 *
   7 * This file should only be included by drivers/parport/parport_pc.c.
   8 */
   9
  10#ifndef _ASM_POWERPC_PARPORT_H
  11#define _ASM_POWERPC_PARPORT_H
  12#ifdef __KERNEL__
  13
  14#include <asm/prom.h>
  15
  16static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
  17{
  18        struct device_node *np;
  19        const u32 *prop;
  20        u32 io1, io2;
  21        int propsize;
  22        int count = 0;
  23        int virq;
  24
  25        for_each_compatible_node(np, "parallel", "pnpPNP,400") {
  26                prop = of_get_property(np, "reg", &propsize);
  27                if (!prop || propsize > 6*sizeof(u32))
  28                        continue;
  29                io1 = prop[1]; io2 = prop[2];
  30
  31                virq = irq_of_parse_and_map(np, 0);
  32                if (!virq)
  33                        continue;
  34
  35                if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0)
  36                                != NULL)
  37                        count++;
  38        }
  39        return count;
  40}
  41
  42#endif /* __KERNEL__ */
  43#endif /* !(_ASM_POWERPC_PARPORT_H) */
  44