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Message type for SYS_VDEVIO

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Change-Id: I62ceb5d487c5acd08cb100f340dd387e733180b4
This commit is contained in:
Lionel Sambuc
2014-05-21 10:45:19 +02:00
parent a8c16a502a
commit 85e7cb92a9
9 changed files with 37 additions and 30 deletions
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16
kernel/system/do_vdevio.c
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@@ -2,9 +2,9 @@
* m_type: SYS_VDEVIO
*
* The parameters for this kernel call are:
* m2_i3: DIO_REQUEST (request input or output)
* m2_p1: DIO_VEC_ADDR (pointer to port/ value pairs)
* m2_i2: DIO_VEC_SIZE (number of ports to read or write)
* m_lsys_krn_sys_vdevio.request (request input or output)
* m_lsys_krn_sys_vdevio.vec_addr (pointer to port/ value pairs)
* m_lsys_krn_sys_vdevio.vec_size (number of ports to read or write)
*/
#include "kernel/system.h"
@@ -42,12 +42,12 @@ int do_vdevio(struct proc * caller, message * m_ptr)
int r;
/* Get the request, size of the request vector, and check the values. */
io_dir = m_ptr->DIO_REQUEST & _DIO_DIRMASK;
io_type = m_ptr->DIO_REQUEST & _DIO_TYPEMASK;
io_dir = m_ptr->m_lsys_krn_sys_vdevio.request & _DIO_DIRMASK;
io_type = m_ptr->m_lsys_krn_sys_vdevio.request & _DIO_TYPEMASK;
if (io_dir == _DIO_INPUT) io_in = TRUE;
else if (io_dir == _DIO_OUTPUT) io_in = FALSE;
else return(EINVAL);
if ((vec_size = m_ptr->DIO_VEC_SIZE) <= 0) return(EINVAL);
if ((vec_size = m_ptr->m_lsys_krn_sys_vdevio.vec_size) <= 0) return(EINVAL);
switch (io_type) {
case _DIO_BYTE:
bytes = vec_size * sizeof(pvb_pair_t);
@@ -66,7 +66,7 @@ int do_vdevio(struct proc * caller, message * m_ptr)
if (bytes > sizeof(vdevio_buf)) return(E2BIG);
/* Copy (port,value)-pairs from user. */
if((r=data_copy(caller->p_endpoint, (vir_bytes) m_ptr->DIO_VEC_ADDR,
if((r=data_copy(caller->p_endpoint, m_ptr->m_lsys_krn_sys_vdevio.vec_addr,
KERNEL, (vir_bytes) vdevio_buf, bytes)) != OK)
return r;
@@ -152,7 +152,7 @@ int do_vdevio(struct proc * caller, message * m_ptr)
/* Almost done, copy back results for input requests. */
if (io_in)
if((r=data_copy(KERNEL, (vir_bytes) vdevio_buf,
caller->p_endpoint, (vir_bytes) m_ptr->DIO_VEC_ADDR,
caller->p_endpoint, m_ptr->m_lsys_krn_sys_vdevio.vec_addr,
(phys_bytes) bytes)) != OK)
return r;
return(OK);