/*
- * $Id: setpci.c,v 1.8 1998/10/24 13:39:20 mj Exp $
+ * $Id: setpci.c,v 1.9 1999/01/22 21:05:02 mj Exp $
*
* Linux PCI Utilities -- Manipulate PCI Configuration Registers
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
-#define _GNU_SOURCE
-
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
-#include <fcntl.h>
+#include <stdarg.h>
#include <unistd.h>
-#include <errno.h>
-#include <asm/byteorder.h>
-
-#include <asm/unistd.h>
-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 1
-#include <syscall-list.h>
-#endif
#include "pciutils.h"
static int verbose; /* Verbosity level */
static int demo_mode; /* Only show */
-struct device {
- struct device *next;
- byte bus, devfn, mark;
- word vendid, devid;
- int fd, need_write;
-};
-
-static struct device *first_dev;
+static struct pci_access *pacc;
struct op {
struct op *next;
- struct device **dev_vector;
+ struct pci_dev **dev_vector;
unsigned int addr;
unsigned int width; /* Byte width of the access */
int num_values; /* Number of values to write; <0=read */
static struct op *first_op, **last_op = &first_op;
-void *
-xmalloc(unsigned int howmuch)
-{
- void *p = malloc(howmuch);
- if (!p)
- {
- fprintf(stderr, "setpci: Unable to allocate %d bytes of memory\n", howmuch);
- exit(1);
- }
- return p;
-}
-
-/*
- * As libc doesn't support pread/pwrite yet, we have to call them directly
- * or use lseek/read/write instead.
- */
-#if !(defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ > 0)
-
-#if defined(__GLIBC__) && !(defined(__powerpc__) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
-#ifndef SYS_pread
-#define SYS_pread __NR_pread
-#endif
-static int
-pread(unsigned int fd, void *buf, size_t size, loff_t where)
-{
- return syscall(SYS_pread, fd, buf, size, where);
-}
-
-#ifndef SYS_pwrite
-#define SYS_pwrite __NR_pwrite
-#endif
-static int
-pwrite(unsigned int fd, void *buf, size_t size, loff_t where)
-{
- return syscall(SYS_pwrite, fd, buf, size, where);
-}
-#else
-static _syscall4(int, pread, unsigned int, fd, void *, buf, size_t, size, loff_t, where);
-static _syscall4(int, pwrite, unsigned int, fd, void *, buf, size_t, size, loff_t, where);
-#endif
-
-#endif
-
-static void
-scan_devices(void)
-{
- struct device **last = &first_dev;
- byte line[256];
- FILE *f;
-
- if (!(f = fopen(PROC_BUS_PCI "/devices", "r")))
- {
- perror(PROC_BUS_PCI "/devices");
- exit(1);
- }
- while (fgets(line, sizeof(line), f))
- {
- struct device *d = xmalloc(sizeof(struct device));
- unsigned int dfn, vend;
-
- sscanf(line, "%x %x", &dfn, &vend);
- d->bus = dfn >> 8U;
- d->devfn = dfn & 0xff;
- d->vendid = vend >> 16U;
- d->devid = vend & 0xffff;
- d->fd = -1;
- *last = d;
- last = &d->next;
- }
- fclose(f);
- *last = NULL;
-}
-
-static struct device **
+static struct pci_dev **
select_devices(struct pci_filter *filt)
{
- struct device *z, **a, **b;
+ struct pci_dev *z, **a, **b;
int cnt = 1;
- for(z=first_dev; z; z=z->next)
- if (z->mark = filter_match(filt, z->bus, z->devfn, z->vendid, z->devid))
+ for(z=pacc->devices; z; z=z->next)
+ if (pci_filter_match(filt, z))
cnt++;
a = b = xmalloc(sizeof(struct device *) * cnt);
- for(z=first_dev; z; z=z->next)
- if (z->mark)
+ for(z=pacc->devices; z; z=z->next)
+ if (pci_filter_match(filt, z))
*a++ = z;
*a = NULL;
return b;
}
static void
-exec_op(struct op *op, struct device *dev)
+exec_op(struct op *op, struct pci_dev *dev)
{
char *mm[] = { NULL, "%02x", "%04x", NULL, "%08x" };
char *m = mm[op->width];
unsigned int x;
int i;
- __u32 x32;
- __u16 x16;
- __u8 x8;
-
- if (!demo_mode && dev->fd < 0)
- {
- char name[64];
- sprintf(name, PROC_BUS_PCI "/%02x/%02x.%x", dev->bus, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
- if ((dev->fd = open(name, dev->need_write ? O_RDWR : O_RDONLY)) < 0)
- {
- perror(name);
- exit(1);
- }
- }
if (verbose)
- printf("%02x:%02x.%x:%02x", dev->bus, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), op->addr);
+ printf("%02x:%02x.%x:%02x", dev->bus, dev->dev, dev->func, op->addr);
if (op->num_values >= 0)
for(i=0; i<op->num_values; i++)
{
switch (op->width)
{
case 1:
- x8 = op->values[i];
- i = pwrite(dev->fd, &x8, 1, op->addr);
+ pci_write_byte(dev, op->addr, op->values[i]);
break;
case 2:
- x16 = __cpu_to_le16(op->values[i]);
- i = pwrite(dev->fd, &x16, 2, op->addr);
+ pci_write_word(dev, op->addr, op->values[i]);
break;
default:
- x32 = __cpu_to_le32(op->values[i]);
- i = pwrite(dev->fd, &x32, 4, op->addr);
+ pci_write_long(dev, op->addr, op->values[i]);
break;
}
- if (i != (int) op->width)
- {
- fprintf(stderr, "Error writing to %02x:%02x.%d: %m\n", dev->bus, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
- exit(1);
- }
}
else
{
switch (op->width)
{
case 1:
- i = pread(dev->fd, &x8, 1, op->addr);
- x = x8;
+ x = pci_read_byte(dev, op->addr);
break;
case 2:
- i = pread(dev->fd, &x16, 2, op->addr);
- x = __le16_to_cpu(x16);
+ x = pci_read_word(dev, op->addr);
break;
default:
- i = pread(dev->fd, &x32, 4, op->addr);
- x = __le32_to_cpu(x32);
+ x = pci_read_long(dev, op->addr);
break;
}
- if (i != (int) op->width)
- {
- fprintf(stderr, "Error reading from %02x:%02x.%d: %m\n", dev->bus, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
- exit(1);
- }
printf(m, x);
}
else
static void
execute(struct op *op)
{
- struct device **vec = NULL;
- struct device **pdev, *dev;
+ struct pci_dev **vec = NULL;
+ struct pci_dev **pdev, *dev;
struct op *oops;
while (op)
static void
scan_ops(struct op *op)
{
- struct device **pdev, *dev;
-
while (op)
{
if (op->num_values >= 0)
- {
- pdev = op->dev_vector;
- while (dev = *pdev++)
- dev->need_write = 1;
- }
+ pacc->writeable = 1;
op = op->next;
}
}
usage(void)
{
fprintf(stderr,
-"Usage: setpci [-fvD] (<device>+ <reg>[=<values>]*)*\n\
+"Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n\
-f\t\tDon't complain if there's nothing to do\n\
-v\t\tBe verbose\n\
--D\t\tList changes, don't commit them\n\
-<device>:\t-s [[<bus>]:][<slot>][.[<func>]]\n\
+-D\t\tList changes, don't commit them\n"
+GENERIC_HELP
+"<device>:\t-s [[<bus>]:][<slot>][.[<func>]]\n\
\t|\t-d [<vendor>]:[<device>]\n\
<reg>:\t\t<number>[.(B|W|L)]\n\
|\t\t<name>\n\
{
enum { STATE_INIT, STATE_GOT_FILTER, STATE_GOT_OP } state = STATE_INIT;
struct pci_filter filter;
- struct device **selected_devices = NULL;
+ struct pci_dev **selected_devices = NULL;
+ char *opts = GENERIC_OPTIONS ;
if (argc == 2 && !strcmp(argv[1], "--version"))
{
}
argc--;
argv++;
+
+ pacc = pci_alloc();
+ pacc->error = die;
+
while (argc && argv[0][0] == '-')
{
char *c = argv[0]+1;
char *d = c;
+ char *e;
while (*c)
switch (*c)
{
case 0:
break;
default:
- if (c != d)
- usage();
- goto next;
+ if (e = strchr(opts, *c))
+ {
+ char *arg;
+ c++;
+ if (e[1] == ':')
+ {
+ if (*c)
+ arg = c;
+ else if (argc > 1)
+ {
+ arg = argv[1];
+ argc--; argv++;
+ }
+ else
+ usage();
+ c = "";
+ }
+ else
+ arg = NULL;
+ if (!parse_generic_option(*e, pacc, arg))
+ usage();
+ }
+ else
+ {
+ if (c != d)
+ usage();
+ goto next;
+ }
}
argc--;
argv++;
}
next:
- scan_devices();
+ pci_init(pacc);
+ pci_scan_bus(pacc);
while (argc)
{
usage();
if (state != STATE_GOT_FILTER)
{
- filter_init(&filter);
+ pci_filter_init(pacc, &filter);
state = STATE_GOT_FILTER;
}
switch (c[1])
{
case 's':
- if (d = filter_parse_slot(&filter, d))
- {
- fprintf(stderr, "setpci: -s: %s\n", d);
- return 1;
- }
+ if (d = pci_filter_parse_slot(&filter, d))
+ die("-s: %s", d);
break;
case 'd':
- if (d = filter_parse_id(&filter, d))
- {
- fprintf(stderr, "setpci: -d: %s\n", d);
- return 1;
- }
+ if (d = pci_filter_parse_id(&filter, d))
+ die("-d: %s", d);
break;
default:
usage();
op->width = r->width;
}
if (ll > 0x100 || ll + op->width*((n < 0) ? 1 : n) > 0x100)
- {
- fprintf(stderr, "setpci: Register number out of range!\n");
- return 1;
- }
+ die("Register number out of range!");
if (ll & (op->width - 1))
- {
- fprintf(stderr, "setpci: Unaligned register address!\n");
- return 1;
- }
+ die("Unaligned register address!");
op->addr = ll;
for(i=0; i<n; i++)
{
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