config: provide a makefile for scanpci dev tool

No function changes.

Note that automake generates a wrapper script if libpciaccess
is not installed at configuration time, which is the most common case.

If it is installed at configuration time, you get an executable.

The makefile build order ensures the lib is build before scanpci.

Reviewed-by: Rémi Cardona <remi@gentoo.org>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>

3 files changed, 245 insertions, 0 deletions

diff --git a/scanpci/.gitignore b/scanpci/.gitignore
new file mode 100644
index 0000000..485d4b9
--- /dev/null
+++ b/scanpci/.gitignore
@@ -0,0 +1 @@
+scanpci
diff --git a/scanpci/Makefile.am b/scanpci/Makefile.am
new file mode 100644
index 0000000..6fdf86e
--- /dev/null
+++ b/scanpci/Makefile.am
@@ -0,0 +1,29 @@
+#
+# (C) Copyright IBM Corporation 2006
+# All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, and/or sell copies of the Software, and to permit persons to whom
+# the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+# IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+noinst_PROGRAMS = scanpci
+
+AM_CPPFLAGS = -I$(top_srcdir)/include
+AM_LDFLAGS =  -L$(top_builddir)/src -lpciaccess
+
+scanpci_SOURCES = scanpci.c
diff --git a/scanpci/scanpci.c b/scanpci/scanpci.c
new file mode 100644
index 0000000..34ec664
--- /dev/null
+++ b/scanpci/scanpci.c
@@ -0,0 +1,215 @@
+/*
+ * (C) Copyright IBM Corporation 2006
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <unistd.h>
+
+#include "pciaccess.h"
+
+
+static void
+print_pci_bridge( const struct pci_bridge_info * info )
+{
+    printf( "  Bus: primary=%02x, secondary=%02x, subordinate=%02x, "
+	    "sec-latency=%u\n",
+	    info->primary_bus,
+	    info->secondary_bus,
+	    info->subordinate_bus,
+	    info->secondary_latency_timer );
+    printf( "  I/O behind bridge: %08x-%08x\n",
+	    info->io_base,
+	    info->io_limit );
+    printf( "  Memory behind bridge: %08x-%08x\n",
+	    info->mem_base,
+	    info->mem_limit );
+    printf( "  Prefetchable memory behind bridge: %08llx-%08llx\n",
+	    info->prefetch_mem_base,
+	    info->prefetch_mem_limit );
+}
+
+static void
+print_pci_device( struct pci_device * dev, int verbose )
+{
+    const char * dev_name;
+    const char * vend_name;
+
+    vend_name = pci_device_get_vendor_name( dev );
+    dev_name = pci_device_get_device_name( dev );
+    if ( dev_name == NULL ) {
+	dev_name = "Device unknown";
+    }
+
+    printf("\npci ");
+    if (dev->domain != 0)
+	printf("domain 0x%04x ", dev->domain);
+    printf("bus 0x%04x cardnum 0x%02x function 0x%02x:"
+	   " vendor 0x%04x device 0x%04x\n",
+	   dev->bus, 
+	   dev->dev,
+	   dev->func,
+	   dev->vendor_id,
+	   dev->device_id );
+    if ( vend_name != NULL ) {
+	printf( " %s %s\n", vend_name, dev_name );
+    }
+    else {
+	printf( " %s\n", dev_name );
+    }
+    
+    if ( verbose ) {
+	unsigned   i;
+	uint16_t  command, status;
+	uint8_t   bist;
+	uint8_t   header_type;
+	uint8_t   latency_timer;
+	uint8_t   cache_line_size;
+	uint8_t   max_latency;
+	uint8_t   min_grant;
+	uint8_t   int_pin;
+
+
+	vend_name = pci_device_get_subvendor_name( dev );
+	dev_name = pci_device_get_subdevice_name( dev );
+	if ( dev_name == NULL ) {
+	    dev_name = "Card unknown";
+	}
+
+	printf( " CardVendor 0x%04x card 0x%04x (",
+		dev->subvendor_id,
+		dev->subdevice_id );
+	if ( vend_name != NULL ) {
+	    printf( "%s, %s)\n", vend_name, dev_name );
+	}
+	else {
+	    printf( "%s)\n", dev_name );
+	}
+
+	pci_device_cfg_read_u16( dev, & command, 4 );
+	pci_device_cfg_read_u16( dev, & status,  6 );
+	printf( "  STATUS    0x%04x  COMMAND 0x%04x\n", 
+		status,
+		command );
+	printf( "  CLASS     0x%02x 0x%02x 0x%02x  REVISION 0x%02x\n",
+		(dev->device_class >> 16) & 0x0ff,
+		(dev->device_class >>  8) & 0x0ff,
+		(dev->device_class >>  0) & 0x0ff,
+		dev->revision );
+
+	pci_device_cfg_read_u8( dev, & cache_line_size, 12 );
+	pci_device_cfg_read_u8( dev, & latency_timer, 13 );
+	pci_device_cfg_read_u8( dev, & header_type, 14 );
+	pci_device_cfg_read_u8( dev, & bist, 15 );
+
+	printf( "  BIST      0x%02x  HEADER 0x%02x  LATENCY 0x%02x  CACHE 0x%02x\n",
+		bist,
+		header_type,
+		latency_timer,
+		cache_line_size );
+	
+	pci_device_probe( dev );
+	for ( i = 0 ; i < 6 ; i++ ) {
+	    if ( dev->regions[i].base_addr != 0 ) {
+		printf( "  BASE%u     0x%08x SIZE %d  %s",
+			i,
+			(intptr_t) dev->regions[i].base_addr,
+			(size_t) dev->regions[i].size,
+			(dev->regions[i].is_IO) ? "I/O" : "MEM" );
+
+		if ( ! dev->regions[i].is_IO ) {
+		    if ( dev->regions[i].is_prefetchable ) {
+			printf( " PREFETCHABLE" );
+		    }
+		}
+		
+		printf( "\n" );
+	    }
+	}
+
+	if ( dev->rom_size ) {
+	    printf( "  BASEROM   0x%08x  addr 0x%08x\n",
+		    0, 0 );
+	}
+
+	pci_device_cfg_read_u8( dev, & int_pin, 61 );
+	pci_device_cfg_read_u8( dev, & min_grant, 62 );
+	pci_device_cfg_read_u8( dev, & max_latency, 63 );
+
+	printf( "  MAX_LAT   0x%02x  MIN_GNT 0x%02x  INT_PIN 0x%02x  INT_LINE 0x%02x\n",
+		max_latency,
+		min_grant,
+		int_pin,
+		dev->irq );
+
+	if ( (dev->device_class >> 16) == 0x06 ) {
+	    const void * info;
+
+	    if ( (info = pci_device_get_bridge_info(dev)) != NULL ) {
+		print_pci_bridge( (const struct pci_bridge_info *) info );
+	    }
+	    else if ( (info = pci_device_get_pcmcia_bridge_info(dev)) != NULL ) {
+		/* Nothing yet. */
+	    }
+	}
+    }
+}
+
+
+int main( int argc, char ** argv )
+{
+    struct pci_device_iterator * iter;
+    struct pci_device * dev;
+    int ret;
+    int verbose = 0;
+    int c;
+    int errors = 0;
+
+    while ((c = getopt(argc, argv, "v")) != -1) {
+	switch (c) {
+	case 'v':
+	    verbose = 1;
+	    break;
+	case '?':
+	    errors++;
+	}
+    }
+    if (errors != 0) {
+	fprintf(stderr, "usage: %s [-v]\n", argv[0]);
+	exit(2);
+    }
+
+    ret = pci_system_init();
+    if (ret != 0)
+	err(1, "Couldn't initialize PCI system");
+
+    iter = pci_slot_match_iterator_create( NULL );
+
+    while ( (dev = pci_device_next( iter )) != NULL ) {
+	print_pci_device( dev, verbose );
+    }
+
+    pci_system_cleanup();
+    return 0;
+}