#include <linux/config.h>#include <linux/module.h>#include <linux/pci.h>#include <linux/list.h>#include <linux/fs.h>#include <linux/string.h>unsigned short vendor = 0;unsigned short device = 0;unsigned short class = 0;unsigned short detail = 0;static void print_resource( struct resource *res ){	if( res->name && res->flags ) {		//printk( "<1>name:  %s\n", res->name );		printk( "<1>   flags   : 0x%08x   ", (unsigned int)res->flags );		if( res->flags & IORESOURCE_UNSET )			printk( "UNSET " );		if( res->flags & IORESOURCE_AUTO )			printk( "AUTO " );		if( res->flags & IORESOURCE_BUSY )			printk( "BUSY " );		if( res->flags & IORESOURCE_PREFETCH )			printk( "PREFETCH " );		if( res->flags & IORESOURCE_READONLY )			printk( "READONLY " );		if( res->flags & IORESOURCE_CACHEABLE )			printk( "CACHE " );		if( res->flags & IORESOURCE_RANGELENGTH )			printk( "RANGELENGTH " );		if( res->flags & IORESOURCE_SHADOWABLE )			printk( "SHADOW " );		if( res->flags & IORESOURCE_BUS_HAS_VGA )			printk( "BUS_HAS_VGA " );		if( res->flags & IORESOURCE_IO )			printk( "IO " );		if( res->flags & IORESOURCE_MEM ) {			printk( "MEM [ISA: " );			if(res->flags &IORESOURCE_MEM_WRITEABLE )				printk( "WRITE " );			if(res->flags &IORESOURCE_MEM_CACHEABLE )				printk( "CACHE " );			if(res->flags &IORESOURCE_MEM_RANGELENGTH )				printk( "RANGE " );			if(res->flags &IORESOURCE_MEM_TYPE_MASK )				printk( "TYPEMASK " );			if(res->flags &IORESOURCE_MEM_8BIT )				printk( "8BIT " );			if(res->flags &IORESOURCE_MEM_16BIT )				printk( "16BIT " );			if(res->flags &IORESOURCE_MEM_8AND16BIT )				printk( "8AND16BIT " );			if(res->flags &IORESOURCE_MEM_SHADOWABLE )				printk( "SHADOW " );			if(res->flags &IORESOURCE_MEM_EXPANSIONROM )				printk( "EXPANSIONROM " );			printk( "] " );		}		if( res->flags & IORESOURCE_IRQ ) {			printk( "IRQ [ISA:" );			if(res->flags &IORESOURCE_IRQ_HIGHEDGE )				printk( "HIGHEDGE " );			if(res->flags &IORESOURCE_IRQ_LOWEDGE )				printk( "LOWEDGE " );			if(res->flags &IORESOURCE_IRQ_HIGHLEVEL )				printk( "HIGHLEVEL " );			if(res->flags &IORESOURCE_IRQ_LOWLEVEL )				printk( "LOWLEVEL " );			printk( "] " );		}		if( res->flags & IORESOURCE_DMA ) {			printk( "DMA [ISA:" );			if(res->flags &IORESOURCE_DMA_TYPE_MASK )				printk( "TYPEMASK " );			if(res->flags &IORESOURCE_DMA_8BIT )				printk( "8BIT " );			if(res->flags &IORESOURCE_DMA_8AND16BIT )				printk( "8AND16BIT " );			if(res->flags &IORESOURCE_DMA_16BIT )				printk( "16BIT " );			if(res->flags &IORESOURCE_DMA_MASTER )				printk( "MASTER " );			if(res->flags &IORESOURCE_DMA_BYTE )				printk( "BYTE " );			if(res->flags &IORESOURCE_DMA_WORD )				printk( "WORD " );			if(res->flags &IORESOURCE_DMA_SPEED_MASK )				printk( "SPEEDMASK " );			if(res->flags &IORESOURCE_DMA_COMPATIBLE )				printk( "COMPIT " );			if(res->flags &IORESOURCE_DMA_TYPEA )				printk( "TYPEA " );			if(res->flags &IORESOURCE_DMA_TYPEB )				printk( "TYPEB " );			if(res->flags &IORESOURCE_DMA_TYPEF )				printk( "TYPEF " );			printk( "] " );		}		printk( "\n" );		printk( "<1>   range   : 0x%08x--0x%08x\n", (unsigned int)res->start, (unsigned int)res->end );	}}static void printmsg( struct pci_dev *dev ) {	if( detail ) {		printk( "<1>name       : %s\n", dev->name );		printk( "<1>slot name  : %s\n", dev->slot_name );		printk( "<1>slot       : %d, func: %d\n", PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn) );		printk( "<1>vendor     : 0x%04x, sub: 0x%04x\n", dev->vendor, dev->subsystem_vendor );		printk( "<1>device     : 0x%04x, sub: 0x%04x\n", dev->device, dev->subsystem_device );		printk( "<1>class      : 0x%04x, prog: 0x%02x\n", (unsigned short)(dev->class>>8), (unsigned char)dev->class );		printk( "<1>irq        : %d\n", dev->irq );		printk( "<1>hdr type   : %d", dev->hdr_type&0x7f );		if( dev->hdr_type&0x80 )			printk( " (Multi Func)\n" );		else			printk( " (Singl Func)\n" );		int i;		printk( "<1>resource   :\n" );		for( i=0; i<DEVICE_COUNT_RESOURCE; i++ ) {			print_resource( &dev->resource[i] );		}		for( i=0; i<DEVICE_COUNT_DMA; i++ ) {			print_resource( &dev->dma_resource[i] );		}		for( i=0; i<DEVICE_COUNT_IRQ; i++ ) {			print_resource( &dev->irq_resource[i] );		}		printk( "\n" );	} else {		printk( "<1>name    : %s\n", dev->name );		printk( "<1>value   : 0x%04x | 0x%04x | 0x%04x | 0x%02x | 0x%02x\n",			dev->vendor,			dev->device,			(unsigned short)(dev->class>>8),			dev->irq,			PCI_SLOT( dev->devfn ) );		printk( "<1>        : vendor | device | class  | irq  | slot\n" );		printk( "\n" );	}}static int __init showpci_init( void ){	struct pci_dev *dev = NULL;	int count = 0;	struct list_head *n = pci_devices.next;	while( n!=&pci_devices ) {		dev = pci_dev_g( n );		n = n->next;		if( !vendor && !device && !class ) {			printmsg( dev );			count ++;			continue;		}		if( !vendor && !device && class ) {			if( class==(unsigned short)((dev->class>>16)&0x0f) ) {				printmsg( dev );				count ++;			}			continue;		}		if( !vendor && device && !class ) {			if( device==dev->device ) {				printmsg( dev );				count ++;			}			continue;		}		if( !vendor && device && class ) {			if( device==dev->device && class==(unsigned short)((dev->class>>16)&0x0f) ) {				printmsg( dev );				count ++;			}			continue;		}		if( vendor && !device && !class ) {			if( vendor==dev->vendor ) {				printmsg( dev );				count ++;			}			continue;		}		if( vendor && !device && class ) {			if( vendor==dev->vendor && class==(unsigned short)((dev->class>>16)&0x0f)) {				printmsg( dev );				count ++;			}			continue;		}		if( vendor && device && !class ) {			if( vendor==dev->vendor && device==dev->device) {				printmsg( dev );				count ++;			}			continue;		}		if( vendor && device && class ) {			if( vendor==dev->vendor && device==dev->device && class==(unsigned short)((dev->class>>16)&0x0f) ) {				printmsg( dev );				count ++;			}			continue;		}	}	printk( "<1>device count: %d\n\n", count );	return 0;}static void __exit showpci_exit( void ){}module_init (showpci_init);module_exit (showpci_exit);MODULE_LICENSE( "GPL" );MODULE_AUTHOR( "enLinux" );MODULE_PARM( vendor, "i" );MODULE_PARM( device, "i" );MODULE_PARM( class, "i" );MODULE_PARM( detail, "i" );