Incomplete implementation of libpci's (of pciutils) interface.
No pciutils code was harmed in its production - this code was written by looking at flashrom's expectations, so there's no license pollution. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5645 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Patrick Georgi
parent
9bb0438535
commit
c9f705b121
|
|
@ -77,7 +77,7 @@ ARCHDIR-$(CONFIG_TARGET_POWERPC) := powerpc
|
|||
PLATFORM-y += arch/$(ARCHDIR-y)/Makefile.inc
|
||||
TARGETS-y :=
|
||||
|
||||
BUILD-y := crypto/Makefile.inc libc/Makefile.inc drivers/Makefile.inc
|
||||
BUILD-y := crypto/Makefile.inc libc/Makefile.inc drivers/Makefile.inc libpci/Makefile.inc
|
||||
BUILD-$(CONFIG_TINYCURSES) += curses/Makefile.inc
|
||||
|
||||
# The primary target needs to be here before we include the
|
||||
|
|
@ -145,7 +145,7 @@ prepare:
|
|||
$(Q)mkdir -p $(obj)/util/kconfig/lxdialog
|
||||
$(Q)mkdir -p $(obj)/crypto $(obj)/curses $(obj)/drivers/video
|
||||
$(Q)mkdir -p $(obj)/drivers/usb
|
||||
$(Q)mkdir -p $(obj)/arch/$(ARCHDIR-y) $(obj)/lib/$(ARCHDIR-y) $(obj)/libc
|
||||
$(Q)mkdir -p $(obj)/arch/$(ARCHDIR-y) $(obj)/lib/$(ARCHDIR-y) $(obj)/libc $(obj)/libpci
|
||||
$(Q)mkdir -p $(obj)/lib/$(ARCHDIR-y)
|
||||
$(Q)mkdir -p $(obj)/include
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,76 @@
|
|||
/*
|
||||
* This file is part of the libpayload project.
|
||||
*
|
||||
* Copyright (C) 2010 coresystems GmbH
|
||||
*
|
||||
* 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.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
||||
*/
|
||||
|
||||
#ifndef _PCI_PCI_H
|
||||
#define _PCI_PCI_H
|
||||
|
||||
#include <pci.h>
|
||||
|
||||
#define PCI_CLASS_DEVICE REG_CLASS_DEV
|
||||
#define PCI_SUBSYSTEM_VENDOR_ID REG_SUBSYS_VENDOR_ID
|
||||
#define PCI_SUBSYSTEM_ID REG_SUBSYS_ID
|
||||
|
||||
struct pci_dev {
|
||||
u16 domain;
|
||||
u8 bus, dev, func;
|
||||
u16 vendor_id, device_id;
|
||||
struct pci_dev *next;
|
||||
};
|
||||
|
||||
/*
|
||||
* values to match devices against.
|
||||
* "-1" means "don't care", everything else requires an exact match
|
||||
*/
|
||||
struct pci_filter {
|
||||
int domain, bus, dev, func;
|
||||
int vendor, device;
|
||||
struct pci_dev *devices;
|
||||
};
|
||||
|
||||
struct pci_access {
|
||||
struct pci_dev *devices;
|
||||
};
|
||||
|
||||
u8 pci_read_byte(struct pci_dev *dev, int pos);
|
||||
u16 pci_read_word(struct pci_dev *dev, int pos);
|
||||
u32 pci_read_long(struct pci_dev *dev, int pos);
|
||||
|
||||
int pci_write_byte(struct pci_dev *dev, int pos, u8 data);
|
||||
int pci_write_word(struct pci_dev *dev, int pos, u16 data);
|
||||
int pci_write_long(struct pci_dev *dev, int pos, u32 data);
|
||||
|
||||
struct pci_access *pci_alloc(void);
|
||||
void pci_init(struct pci_access*);
|
||||
char *pci_filter_parse_slot(struct pci_filter*, const char*);
|
||||
int pci_filter_match(struct pci_filter*, struct pci_dev*);
|
||||
void pci_filter_init(struct pci_access*, struct pci_filter*);
|
||||
void pci_scan_bus(struct pci_access*);
|
||||
struct pci_dev *pci_get_dev(struct pci_access*, u16, u8, u8, u8);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
##
|
||||
## This file is part of the libpayload project.
|
||||
##
|
||||
## Copyright (C) 2010 coresystems GmbH
|
||||
##
|
||||
## 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.
|
||||
## 3. The name of the author may not be used to endorse or promote products
|
||||
## derived from this software without specific prior written permission.
|
||||
##
|
||||
## THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
||||
##
|
||||
|
||||
TARGETS-y += libpci/libpci.o
|
||||
|
|
@ -0,0 +1,216 @@
|
|||
/*
|
||||
* This file is part of the libpayload project.
|
||||
*
|
||||
* Copyright (C) 2010 coresystems GmbH
|
||||
*
|
||||
* 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.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <libpayload.h>
|
||||
#include <pci.h>
|
||||
#include <pci/pci.h>
|
||||
|
||||
/* libpci shim */
|
||||
static pcidev_t libpci_to_lb(struct pci_dev *dev)
|
||||
{
|
||||
return PCI_DEV(dev->bus, dev->dev, dev->func);
|
||||
}
|
||||
|
||||
/* libpci interface */
|
||||
u8 pci_read_byte(struct pci_dev *dev, int pos)
|
||||
{
|
||||
return pci_read_config8(libpci_to_lb(dev), pos);
|
||||
}
|
||||
|
||||
u16 pci_read_word(struct pci_dev *dev, int pos)
|
||||
{
|
||||
return pci_read_config16(libpci_to_lb(dev), pos);
|
||||
}
|
||||
|
||||
u32 pci_read_long(struct pci_dev *dev, int pos)
|
||||
{
|
||||
return pci_read_config32(libpci_to_lb(dev), pos);
|
||||
}
|
||||
|
||||
int pci_write_byte(struct pci_dev *dev, int pos, u8 data)
|
||||
{
|
||||
pci_write_config8(libpci_to_lb(dev), pos, data);
|
||||
return 1; /* success */
|
||||
}
|
||||
|
||||
int pci_write_word(struct pci_dev *dev, int pos, u16 data)
|
||||
{
|
||||
pci_write_config16(libpci_to_lb(dev), pos, data);
|
||||
return 1; /* success */
|
||||
}
|
||||
|
||||
int pci_write_long(struct pci_dev *dev, int pos, u32 data)
|
||||
{
|
||||
pci_write_config32(libpci_to_lb(dev), pos, data);
|
||||
return 1; /* success */
|
||||
}
|
||||
|
||||
struct pci_access *pci_alloc(void)
|
||||
{
|
||||
struct pci_access *pacc = malloc(sizeof(*pacc));
|
||||
return pacc;
|
||||
}
|
||||
|
||||
void pci_init(struct pci_access* pacc)
|
||||
{
|
||||
memset(pacc, 0, sizeof(*pacc));
|
||||
}
|
||||
|
||||
void pci_filter_init(struct pci_access* pacc, struct pci_filter* pf)
|
||||
{
|
||||
pf->domain = -1;
|
||||
pf->bus = -1;
|
||||
pf->dev = -1;
|
||||
pf->func = -1;
|
||||
pf->vendor = -1;
|
||||
pf->device = -1;
|
||||
}
|
||||
|
||||
/* parse domain:bus:dev.func (with all components but "dev" optional)
|
||||
* into filter.
|
||||
* Returns NULL on success, a string pointer to the error message otherwise.
|
||||
*/
|
||||
char *pci_filter_parse_slot(struct pci_filter* filter, const char* id)
|
||||
{
|
||||
char *endptr;
|
||||
|
||||
filter->func = filter->dev = filter->bus = filter->domain = -1;
|
||||
|
||||
char *funcp = strrchr(id, '.');
|
||||
if (funcp) {
|
||||
filter->func = strtoul(funcp+1, &endptr, 0);
|
||||
if (endptr[0] != '\0') return "invalid pci device string";
|
||||
}
|
||||
|
||||
char *devp = strrchr(id, ':');
|
||||
if (!devp) {
|
||||
filter->dev = strtoul(id, &endptr, 0);
|
||||
} else {
|
||||
filter->dev = strtoul(devp+1, &endptr, 0);
|
||||
}
|
||||
if (endptr != funcp) return "invalid pci device string";
|
||||
if (!devp) return NULL;
|
||||
|
||||
char *busp = strchr(id, ':');
|
||||
if (busp == devp) {
|
||||
filter->bus = strtoul(id, &endptr, 0);
|
||||
} else {
|
||||
filter->bus = strtoul(busp+1, &endptr, 0);
|
||||
}
|
||||
if (endptr != funcp) return "invalid pci device string";
|
||||
if (busp == devp) return NULL;
|
||||
|
||||
filter->domain = strtoul(id, &endptr, 0);
|
||||
if (endptr != busp) return "invalid pci device string";
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
int pci_filter_match(struct pci_filter* pf, struct pci_dev* dev)
|
||||
{
|
||||
if ((pf->domain > -1) && (pf->domain != dev->domain))
|
||||
return 0;
|
||||
if ((pf->bus > -1) && (pf->bus != dev->bus))
|
||||
return 0;
|
||||
if ((pf->dev > -1) && (pf->dev != dev->dev))
|
||||
return 0;
|
||||
if ((pf->func > -1) && (pf->func != dev->func))
|
||||
return 0;
|
||||
if ((pf->vendor > -1) && (pf->vendor != dev->vendor_id))
|
||||
return 0;
|
||||
if ((pf->device > -1) && (pf->device != dev->device_id))
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static struct pci_dev *pci_scan_single_bus(struct pci_dev *dev, int bus)
|
||||
{
|
||||
int devfn;
|
||||
u32 val;
|
||||
unsigned char hdr;
|
||||
|
||||
for (devfn = 0; devfn < 0x100; devfn++) {
|
||||
int func = devfn & 0x7;
|
||||
int slot = (devfn >> 3) & 0x1f;
|
||||
|
||||
val = pci_read_config32(PCI_DEV(bus, slot, func),
|
||||
REG_VENDOR_ID);
|
||||
|
||||
if (val == 0xffffffff || val == 0x00000000 ||
|
||||
val == 0x0000ffff || val == 0xffff0000)
|
||||
continue;
|
||||
|
||||
dev->next = malloc(sizeof(struct pci_dev));
|
||||
dev = dev->next;
|
||||
dev->domain = 0;
|
||||
dev->bus = bus;
|
||||
dev->dev = slot;
|
||||
dev->func = func;
|
||||
dev->vendor_id = val & 0xffff;
|
||||
dev->device_id = val >> 16;
|
||||
dev->next = 0;
|
||||
|
||||
hdr = pci_read_config8(PCI_DEV(bus, slot, func),
|
||||
REG_HEADER_TYPE);
|
||||
hdr &= 0x7F;
|
||||
|
||||
if (hdr == HEADER_TYPE_BRIDGE || hdr == HEADER_TYPE_CARDBUS) {
|
||||
unsigned int busses;
|
||||
busses = pci_read_config32(PCI_DEV(bus, slot, func),
|
||||
REG_PRIMARY_BUS);
|
||||
busses = (busses >> 8) & 0xFF;
|
||||
|
||||
/* Avoid recursion if the new bus is the same as
|
||||
* the old bus (insert lame The Who joke here) */
|
||||
|
||||
if (busses != bus)
|
||||
dev = pci_scan_single_bus(dev, busses);
|
||||
}
|
||||
}
|
||||
|
||||
return dev;
|
||||
}
|
||||
|
||||
void pci_scan_bus(struct pci_access* pacc)
|
||||
{
|
||||
struct pci_dev rootdev;
|
||||
pci_scan_single_bus(&rootdev, 0);
|
||||
pacc->devices = rootdev.next;
|
||||
}
|
||||
|
||||
struct pci_dev *pci_get_dev(struct pci_access* pacc, u16 domain, u8 bus, u8 dev, u8 func)
|
||||
{
|
||||
struct pci_dev *cur = malloc(sizeof(*cur));
|
||||
cur->domain = domain;
|
||||
cur->bus = bus;
|
||||
cur->dev = dev;
|
||||
cur->func = func;
|
||||
return cur;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue