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extended the fix from port_access_multiple() to port_access()

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marschap
2005-04-07 08:43:06 +00:00
parent 2a65ccaa6c
commit 412c9a3c40
1 changed files with 14 additions and 3 deletions
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server/drivers/port.h
+11
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@@ -230,7 +230,9 @@ Use i386_get_ioperm, i386_set_ioperm from <machine/sysarch.h> and inb and outb f
#include <machine/cpufunc.h>
#include <machine/sysarch.h>
#if (__FreeBSD_version > 500000)
static FILE * port_access_handle = NULL;
#endif
/* Read a byte from port */
static inline int port_in (unsigned short port) {
@@ -244,7 +246,16 @@ static inline void port_out (unsigned short port, unsigned char val) {
/* Get access to a specific port */
static inline int port_access (unsigned short port) {
#if (__FreeBSD_version > 500000)
if( port_access_handle
|| (port_access_handle = fopen("/dev/io", "rw")) != NULL ) {
return i386_set_ioperm(port, 1, 1);
} else {
return( -1 ); /* Failure */
};
#else
return i386_set_ioperm(port, 1, 1);
#endif
}
/* Get access to multiple ports at once */