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/* SPDX-License-Identifier: BSD-2-Clause */
/* PCI (Static) Configuration Library. PCI Configuration C code console
* printout routines that can be used to build a static PCI configuration.
*
* COPYRIGHT (c) 2010 Cobham Gaisler AB.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <pci/cfg.h>
int pci_cfg_print_bus(struct pci_bus *bus);
static void get_bus_name(struct pci_bus *bus, char *buf)
{
if (bus->num == 0)
strcpy(buf, "pci_hb");
else
sprintf(buf, "bus%d", bus->num);
}
static void get_device_name(struct pci_dev *dev, char *buf)
{
char busname[64];
if (dev->flags & PCI_DEV_BRIDGE) {
get_bus_name((struct pci_bus *)dev, busname);
sprintf(buf, "%s.dev", busname);
} else {
sprintf(buf, "dev_%x_%x_%x", PCI_DEV_EXPAND(dev->busdevfun));
}
}
static void pci_cfg_print_resources(struct pci_res *resources, char *prefix)
{
struct pci_res *res;
int i;
for (i = 0; i < DEV_RES_CNT; i++) {
res = &resources[i];
if (((res->flags & PCI_RES_TYPE_MASK) == 0) ||
((res->flags & PCI_RES_FAIL) == PCI_RES_FAIL)) {
printf("%sPCIRES_EMPTY,\n", prefix);
continue;
}
printf("%s{\n", prefix);
printf("%s\t.next = NULL,\n", prefix);
printf("%s\t.size = 0x%08" PRIx32 ",\n", prefix, res->size);
printf("%s\t.boundary = 0x%08" PRIx32 ",\n", prefix, res->boundary);
printf("%s\t.flags = 0x%x,\n", prefix, res->flags);
printf("%s\t.bar = %d,\n", prefix, i);
printf("%s\t.start = 0x%08" PRIx32 ",\n", prefix, res->start);
printf("%s\t.end = 0x%08" PRIx32 ",\n", prefix, res->end);
printf("%s},\n", prefix);
}
}
static void pci_cfg_print_device(struct pci_dev *dev, char *prefix)
{
char name[32];
char buf[8];
printf("%s.resources = {\n", prefix);
strlcpy(buf, prefix, sizeof(buf));
strlcat(buf, "\t", sizeof(buf));
pci_cfg_print_resources(dev->resources, buf);
printf("%s},\n", prefix);
if (dev->next == NULL) {
printf("%s.next = NULL,\n", prefix);
} else {
get_device_name(dev->next, name);
printf("%s.next = &%s,\n", prefix, name);
}
if (!dev->bus) { /* Host Bridge? */
printf("%s.bus = NULL,\n", prefix);
} else {
get_bus_name(dev->bus, name);
printf("%s.bus = &%s,\n", prefix, name);
}
printf("%s.busdevfun = 0x%04x,\n", prefix, dev->busdevfun);
printf("%s.flags = 0x%x,\n", prefix, dev->flags);
printf("%s.sysirq = %d,\n", prefix, dev->sysirq);
printf("%s.vendor = 0x%04x,\n", prefix, dev->vendor);
printf("%s.device = 0x%04x,\n", prefix, dev->device);
printf("%s.subvendor = 0x%04x,\n", prefix, dev->subvendor);
printf("%s.subdevice = 0x%04x,\n", prefix, dev->subdevice);
printf("%s.classrev = 0x%08" PRIx32 ",\n", prefix, dev->classrev);
printf("%s.command = 0,\n", prefix);
}
static int pci_cfg_print_dev(struct pci_dev *dev, void *unused)
{
if (dev->flags & PCI_DEV_BRIDGE) {
pci_cfg_print_bus((struct pci_bus *)dev);
} else {
printf("\n\n/* PCI DEV at [%x:%x:%x] */\n",
PCI_DEV_EXPAND(dev->busdevfun));
printf("static struct pci_dev dev_%x_%x_%x = {\n",
PCI_DEV_EXPAND(dev->busdevfun));
pci_cfg_print_device(dev, "\t");
printf("};\n");
}
return 0;
}
int pci_cfg_print_bus(struct pci_bus *bus)
{
char name[32];
/* Print Bus */
printf("\n\n/* PCI BUS %d - Bridge at [%x:%x:%x] */\n\n",
bus->num, PCI_DEV_EXPAND(bus->dev.busdevfun));
get_bus_name(bus, name);
printf("%sstruct pci_bus %s = {\n",
bus->num == 0 ? "" : "static ", name);
printf("\t.dev = {\n");
pci_cfg_print_device(&bus->dev, "\t\t");
printf("\t},\n");
if (bus->devs == NULL) {
printf("\t.devs = NULL,\n");
} else {
get_device_name(bus->devs, name);
printf("\t.devs = &%s,\n", name);
}
printf("\t.flags = 0x%x,\n", bus->flags);
printf("\t.num = %d,\n", bus->num);
printf("\t.pri = %d,\n", bus->pri);
printf("\t.sord = %d,\n", bus->sord);
printf("};\n");
/* Print all child devices */
pci_for_each_child(bus, pci_cfg_print_dev, NULL, 0);
return 0;
}
static int pci_cfg_print_forw_dev(struct pci_dev *dev, void *unused)
{
if ((dev->flags & PCI_DEV_BRIDGE) == 0) {
printf("static struct pci_dev dev_%x_%x_%x;\n",
PCI_DEV_EXPAND(dev->busdevfun));
}
return 0;
}
void pci_cfg_print(void)
{
int i;
printf("\n\n/*** PCI Configuration ***/\n\n");
printf("#include <stdlib.h>\n");
printf("#define PCI_CFG_STATIC_LIB\n");
printf("#include <pci/cfg.h>\n\n");
printf("#define PCIRES_EMPTY {0}\n\n");
/* Forward declaration for all devices / buses */
printf("/* FORWARD BUS DECLARATIONS */\n");
for (i = 0; i < pci_bus_count(); i++) {
if (i == 0)
printf("struct pci_bus pci_hb;\n");
else
printf("static struct pci_bus bus%d;\n", i);
}
printf("\n/* FORWARD DEVICE DECLARATIONS */\n");
pci_for_each_dev(pci_cfg_print_forw_dev, NULL);
pci_cfg_print_bus(&pci_hb);
}
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