9df1183b94
. added safecopies.c: these are library functions to maintain grant tables in own address space . sys_safecopy.c: interfaces to kernel calls to perform safe copy functions in from or to foreign process . changes in i/o fields (type merged with request) reflected in library functions (sys_out.c, sys_vinb.c, sys_vinl.c, sys_vinw.c, sys_voutb.c, sys_voutl.c, sys_voutw.c) . type merged with request in sys_sdevio, also now accepts offset which is used when a grant is specified (the _DIO_SAFE subtype) . system printf() function changed to send DIAGNOSTICS_S messages, which specify a grant id instead of a direct address for the buffer to be printed; tty and log can then safecopy the buffer
27 lines
841 B
C
27 lines
841 B
C
#include "syslib.h"
|
|
|
|
/*===========================================================================*
|
|
* sys_sdevio *
|
|
*===========================================================================*/
|
|
PUBLIC int sys_sdevio(req, port, proc_nr, buffer, count, offset)
|
|
int req; /* request: DIO_{IN,OUT}PUT_* */
|
|
long port; /* port address to read from */
|
|
endpoint_t proc_nr; /* process where buffer is */
|
|
void *buffer; /* pointer to buffer */
|
|
int count; /* number of elements */
|
|
vir_bytes offset; /* offset from grant */
|
|
{
|
|
message m_io;
|
|
int result;
|
|
|
|
m_io.DIO_REQUEST = req;
|
|
m_io.DIO_PORT = port;
|
|
m_io.DIO_VEC_ENDPT = proc_nr;
|
|
m_io.DIO_VEC_ADDR = buffer;
|
|
m_io.DIO_VEC_SIZE = count;
|
|
m_io.DIO_OFFSET = offset;
|
|
|
|
return(_taskcall(SYSTASK, SYS_SDEVIO, &m_io));
|
|
}
|
|
|