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