minix/lib/libsys/pci_slot_name.c
Ben Gras 35a108b911 panic() cleanup.
this change
   - makes panic() variadic, doing full printf() formatting -
     no more NO_NUM, and no more separate printf() statements
     needed to print extra info (or something in hex) before panicing
   - unifies panic() - same panic() name and usage for everyone -
     vm, kernel and rest have different names/syntax currently
     in order to implement their own luxuries, but no longer
   - throws out the 1st argument, to make source less noisy.
     the panic() in syslib retrieves the server name from the kernel
     so it should be clear enough who is panicing; e.g.
         panic("sigaction failed: %d", errno);
     looks like:
         at_wini(73130): panic: sigaction failed: 0
         syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
   - throws out report() - printf() is more convenient and powerful
   - harmonizes/fixes the use of panic() - there were a few places
     that used printf-style formatting (didn't work) and newlines
     (messes up the formatting) in panic()
   - throws out a few per-server panic() functions
   - cleans up a tie-in of tty with panic()

merging printf() and panic() statements to be done incrementally.
2010-03-05 15:05:11 +00:00

48 lines
1,018 B
C

/*
pci_slot_name.c
*/
#include "pci.h"
#include "syslib.h"
#include <minix/sysutil.h>
/*===========================================================================*
* pci_slot_name *
*===========================================================================*/
PUBLIC char *pci_slot_name(devind)
int devind;
{
static char name[80]; /* We need a better interface for this */
int r;
cp_grant_id_t gid;
message m;
gid= cpf_grant_direct(pci_procnr, (vir_bytes)name, sizeof(name),
CPF_WRITE);
if (gid == -1)
{
printf("pci_dev_name: cpf_grant_direct failed: %d\n",
errno);
return NULL;
}
m.m_type= BUSC_PCI_SLOT_NAME_S;
m.m1_i1= devind;
m.m1_i2= sizeof(name);
m.m1_i3= gid;
r= sendrec(pci_procnr, &m);
cpf_revoke(gid);
if (r != 0)
panic("pci_slot_name: can't talk to PCI: %d", r);
if (m.m_type != 0)
panic("pci_slot_name: got bad reply from PCI: %d", m.m_type);
name[sizeof(name)-1]= '\0'; /* Make sure that the string is NUL
* terminated.
*/
return name;
}