diff options
Diffstat (limited to 'arch/powerpc/include/asm/parport.h')
| -rw-r--r-- | arch/powerpc/include/asm/parport.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h new file mode 100644 index 00000000..1ca1102b --- /dev/null +++ b/arch/powerpc/include/asm/parport.h @@ -0,0 +1,44 @@ +/* + * 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 <asm/prom.h> + +static int __devinit 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 (np = NULL; (np = of_find_compatible_node(np, + "parallel", + "pnpPNP,400")) != NULL;) { + 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 == NO_IRQ) + continue; + + if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0) + != NULL) + count++; + } + return count; +} + +#endif /* __KERNEL__ */ +#endif /* !(_ASM_POWERPC_PARPORT_H) */ |