minix/lib/libsys/pci_get_bar.c
Lionel Sambuc c3fc9df84a Adding ipc_ prefix to ipc primitives
* Also change _orig to _intr for clarity
 * Cleaned up {IPC,KER}VEC
 * Renamed _minix_kernel_info_struct to get_minix_kerninfo
 * Merged _senda.S into _ipc.S
 * Moved into separate files get_minix_kerninfo and _do_kernel_call
 * Adapted do_kernel_call to follow same _ convention as ipc functions
 * Drop patches in libc/net/send.c and libc/include/namespace.h

Change-Id: If4ea21ecb65435170d7d87de6c826328e84c18d0
2014-03-01 09:05:01 +01:00

38 lines
715 B
C

/*
pci_get_bar.c
*/
#include "pci.h"
#include "syslib.h"
#include <minix/sysutil.h>
/*===========================================================================*
* pci_get_bar *
*===========================================================================*/
int pci_get_bar(devind, port, base, size, ioflag)
int devind;
int port;
u32_t *base;
u32_t *size;
int *ioflag;
{
int r;
message m;
m.m_type= BUSC_PCI_GET_BAR;
m.BUSC_PGB_DEVIND= devind;
m.BUSC_PGB_PORT= port;
r= ipc_sendrec(pci_procnr, &m);
if (r != 0)
panic("pci_get_bar: can't talk to PCI: %d", r);
if (m.m_type == 0)
{
*base= m.BUSC_PGB_BASE;
*size= m.BUSC_PGB_SIZE;
*ioflag= m.BUSC_PGB_IOFLAG;
}
return m.m_type;
}