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Add root bus support functions

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This commit is contained in:
Sebastian Huber 2016-04-26 15:00:44 +02:00
parent 5edcb9ecd2
commit 5b93cc84b4
4 changed files with 125 additions and 0 deletions
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1
libbsd.py
View File

@ -62,6 +62,7 @@ def rtems(mm):
'rtems/rtems-bsd-autoconf.c',
'rtems/rtems-bsd-bus-dma.c',
'rtems/rtems-bsd-bus-dma-mbuf.c',
'rtems/rtems-bsd-bus-root.c',
'rtems/rtems-bsd-cam.c',
'rtems/rtems-bsd-chunk.c',
'rtems/rtems-bsd-conf.c',

1
libbsd_waf.py
View File

@ -974,6 +974,7 @@ def build(bld):
'rtemsbsd/rtems/rtems-bsd-autoconf.c',
'rtemsbsd/rtems/rtems-bsd-bus-dma-mbuf.c',
'rtemsbsd/rtems/rtems-bsd-bus-dma.c',
'rtemsbsd/rtems/rtems-bsd-bus-root.c',
'rtemsbsd/rtems/rtems-bsd-cam.c',
'rtemsbsd/rtems/rtems-bsd-chunk.c',
'rtemsbsd/rtems/rtems-bsd-conf.c',

32
rtemsbsd/include/rtems/bsd/bsd.h
View File

@ -143,6 +143,38 @@ uintptr_t rtems_bsd_get_allocator_domain_size(
void rtems_bsd_get_mac_address(const char *name, int unit,
uint8_t mac_addr[6]);
/**
* @brief Attach the root bus.
*
* @retval 0 Successful operation.
* @retval errno Otherwise.
*/
int rtems_bsd_bus_root_attach(void);
/**
* @brief Suspend the root bus.
*
* @retval 0 Successful operation.
* @retval errno Otherwise.
*/
int rtems_bsd_bus_root_suspend(void);
/**
* @brief Resume the root bus.
*
* @retval 0 Successful operation.
* @retval errno Otherwise.
*/
int rtems_bsd_bus_root_resume(void);
/**
* @brief Detach the root bus.
*
* @retval 0 Successful operation.
* @retval errno Otherwise.
*/
int rtems_bsd_bus_root_detach(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */

91
rtemsbsd/rtems/rtems-bsd-bus-root.c Normal file
View File

@ -0,0 +1,91 @@
/**
* @file
*
* @ingroup rtems_bsd_rtems
*
* @brief TODO.
*/
/*-
* Copyright (c) 2012-2013 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <rtems/bsd/sys/param.h>
#include <sys/bus.h>
#include <rtems/bsd.h>
int
rtems_bsd_bus_root_attach(void)
{
int err;
device_t dev;
dev = device_find_child(root_bus, "nexus", 0);
if (dev != NULL) {
err = device_probe_and_attach(dev);
} else {
err = ENOENT;
}
return (err);
}
int
rtems_bsd_bus_root_suspend(void)
{
return (DEVICE_SUSPEND(root_bus));
}
int
rtems_bsd_bus_root_resume(void)
{
return (DEVICE_RESUME(root_bus));
}
int
rtems_bsd_bus_root_detach(void)
{
int err;
device_t dev;
dev = device_find_child(root_bus, "nexus", 0);
if (dev != NULL) {
err = device_detach(dev);
} else {
err = ENOENT;
}
return (err);
}