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/*
* Mach device server routines (i386at version).
*
* Copyright (c) 1996 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Author: Shantanu Goel, University of Utah CSL
*/
#include <mach/boolean.h>
#include <mach/kern_return.h>
#include <mach/mig_errors.h>
#include <mach/port.h>
#include <mach/notify.h>
#include <device/device_types.h>
#include <device/device_port.h>
#include "device_interface.h"
#include <i386at/dev_hdr.h>
#include <i386at/device_emul.h>
#include <i386/device-drivers.h>
extern struct device_emulation_ops mach_device_emulation_ops;
#ifdef LINUX_DEV
extern struct device_emulation_ops linux_block_emulation_ops;
#ifdef CONFIG_INET
extern struct device_emulation_ops linux_net_emulation_ops;
#endif
#endif
/* List of emulations. */
static struct device_emulation_ops *emulation_list[] =
{
#ifdef LINUX_DEV
&linux_block_emulation_ops,
#ifdef CONFIG_INET
&linux_net_emulation_ops,
#endif
#endif
&mach_device_emulation_ops,
};
#define NUM_EMULATION (sizeof (emulation_list) / sizeof (emulation_list[0]))
io_return_t
ds_device_open (ipc_port_t open_port, ipc_port_t reply_port,
mach_msg_type_name_t reply_port_type, dev_mode_t mode,
char *name, device_t *devp)
{
int i;
device_t dev;
io_return_t err;
/* Open must be called on the master device port. */
if (open_port != master_device_port)
return D_INVALID_OPERATION;
/* There must be a reply port. */
if (! IP_VALID (reply_port))
{
printf ("ds_* invalid reply port\n");
Debugger ("ds_* reply_port");
return MIG_NO_REPLY;
}
/* Call each emulation's open routine to find the device. */
for (i = 0; i < NUM_EMULATION; i++)
{
err = (*emulation_list[i]->open) (reply_port, reply_port_type,
mode, name, devp);
if (err != D_NO_SUCH_DEVICE)
break;
}
return err;
}
io_return_t
ds_device_close (device_t dev)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
return (dev->emul_ops->close
? (*dev->emul_ops->close) (dev->emul_data)
: D_SUCCESS);
}
io_return_t
ds_device_write (device_t dev, ipc_port_t reply_port,
mach_msg_type_name_t reply_port_type, dev_mode_t mode,
recnum_t recnum, io_buf_ptr_t data, unsigned int count,
int *bytes_written)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! data)
return D_INVALID_SIZE;
if (! dev->emul_ops->write)
return D_INVALID_OPERATION;
return (*dev->emul_ops->write) (dev->emul_data, reply_port,
reply_port_type, mode, recnum,
data, count, bytes_written);
}
io_return_t
ds_device_write_inband (device_t dev, ipc_port_t reply_port,
mach_msg_type_name_t reply_port_type,
dev_mode_t mode, recnum_t recnum,
io_buf_ptr_inband_t data, unsigned count,
int *bytes_written)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! data)
return D_INVALID_SIZE;
if (! dev->emul_ops->write_inband)
return D_INVALID_OPERATION;
return (*dev->emul_ops->write_inband) (dev->emul_data, reply_port,
reply_port_type, mode, recnum,
data, count, bytes_written);
}
io_return_t
ds_device_read (device_t dev, ipc_port_t reply_port,
mach_msg_type_name_t reply_port_type, dev_mode_t mode,
recnum_t recnum, int count, io_buf_ptr_t *data,
unsigned *bytes_read)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->read)
return D_INVALID_OPERATION;
return (*dev->emul_ops->read) (dev->emul_data, reply_port,
reply_port_type, mode, recnum,
count, data, bytes_read);
}
io_return_t
ds_device_read_inband (device_t dev, ipc_port_t reply_port,
mach_msg_type_name_t reply_port_type, dev_mode_t mode,
recnum_t recnum, int count, char *data,
unsigned *bytes_read)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->read_inband)
return D_INVALID_OPERATION;
return (*dev->emul_ops->read_inband) (dev->emul_data, reply_port,
reply_port_type, mode, recnum,
count, data, bytes_read);
}
io_return_t
ds_device_set_status (device_t dev, dev_flavor_t flavor,
dev_status_t status, mach_msg_type_number_t status_count)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->set_status)
return D_INVALID_OPERATION;
return (*dev->emul_ops->set_status) (dev->emul_data, flavor, status,
status_count);
}
io_return_t
ds_device_get_status (device_t dev, dev_flavor_t flavor, dev_status_t status,
mach_msg_type_number_t *status_count)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->get_status)
return D_INVALID_OPERATION;
return (*dev->emul_ops->get_status) (dev->emul_data, flavor, status,
status_count);
}
io_return_t
ds_device_set_filter (device_t dev, ipc_port_t receive_port, int priority,
filter_t *filter, unsigned filter_count)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->set_filter)
return D_INVALID_OPERATION;
return (*dev->emul_ops->set_filter) (dev->emul_data, receive_port,
priority, filter, filter_count);
}
io_return_t
ds_device_map (device_t dev, vm_prot_t prot, vm_offset_t offset,
vm_size_t size, ipc_port_t *pager, boolean_t unmap)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->map)
return D_INVALID_OPERATION;
return (*dev->emul_ops->map) (dev->emul_data, prot,
offset, size, pager, unmap);
}
boolean_t
ds_notify (mach_msg_header_t *msg)
{
if (msg->msgh_id == MACH_NOTIFY_NO_SENDERS)
{
device_t dev;
mach_no_senders_notification_t *ns;
ns = (mach_no_senders_notification_t *) msg;
dev = (device_t) ns->not_header.msgh_remote_port;
if (dev->emul_ops->no_senders)
(*dev->emul_ops->no_senders) (ns);
return TRUE;
}
printf ("ds_notify: strange notification %d\n", msg->msgh_id);
return FALSE;
}
io_return_t
ds_device_write_trap (device_t dev, dev_mode_t mode,
recnum_t recnum, vm_offset_t data, vm_size_t count)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->write_trap)
return D_INVALID_OPERATION;
return (*dev->emul_ops->write_trap) (dev->emul_data,
mode, recnum, data, count);
}
io_return_t
ds_device_writev_trap (device_t dev, dev_mode_t mode,
recnum_t recnum, io_buf_vec_t *iovec, vm_size_t count)
{
if (dev == DEVICE_NULL)
return D_NO_SUCH_DEVICE;
if (! dev->emul_ops->writev_trap)
return D_INVALID_OPERATION;
return (*dev->emul_ops->writev_trap) (dev->emul_data,
mode, recnum, iovec, count);
}
void
device_reference (device_t dev)
{
if (dev->emul_ops->reference)
(*dev->emul_ops->reference) (dev->emul_data);
}
void
device_deallocate (device_t dev)
{
if (dev->emul_ops->dealloc)
(*dev->emul_ops->dealloc) (dev->emul_data);
}
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