[linux-block.git] / arch / powerpc / include / asm / parport.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * parport.h: platform-specific PC-style parport initialisation
 *
 * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
 *
 * This file should only be included by drivers/parport/parport_pc.c.
 */

#ifndef _ASM_POWERPC_PARPORT_H
#define _ASM_POWERPC_PARPORT_H
#ifdef __KERNEL__

#include <linux/of_irq.h>

static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
{
	struct device_node *np;
	const u32 *prop;
	u32 io1, io2;
	int propsize;
	int count = 0;
	int virq;

	for_each_compatible_node(np, "parallel", "pnpPNP,400") {
		prop = of_get_property(np, "reg", &propsize);
		if (!prop || propsize > 6*sizeof(u32))
			continue;
		io1 = prop[1]; io2 = prop[2];

		virq = irq_of_parse_and_map(np, 0);
		if (!virq)
			continue;

		if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0)
				!= NULL)
			count++;
	}
	return count;
}

#endif /* __KERNEL__ */
#endif /* !(_ASM_POWERPC_PARPORT_H) */
Commit	Line	Data
	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 <linux/of_irq.h>
	15
	16	static 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) */