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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Old AMBA scanning Interface provided for backwards compability
*
* COPYRIGHT (c) 2011
* Aeroflex Gaisler
*
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <grlib/ambapp.h>
struct ambapp_dev_find_match_arg {
int index;
int count;
int type;
void *dev;
};
/* AMBA PP find routines */
static int ambapp_dev_find_match(struct ambapp_dev *dev, int index, void *arg)
{
struct ambapp_dev_find_match_arg *p = arg;
if (p->index == 0) {
/* Found controller, stop */
if (p->type == DEV_APB_SLV) {
*(struct ambapp_apb_info *)p->dev = *DEV_TO_APB(dev);
p->dev = ((struct ambapp_apb_info *)p->dev)+1;
} else {
*(struct ambapp_ahb_info *)p->dev = *DEV_TO_AHB(dev);
p->dev = ((struct ambapp_ahb_info *)p->dev)+1;
}
p->count--;
if (p->count < 1)
return 1;
} else {
p->index--;
}
return 0;
}
int ambapp_find_apbslvs_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int index, int maxno)
{
struct ambapp_dev_find_match_arg arg;
arg.index = index;
arg.count = maxno;
arg.type = DEV_APB_SLV; /* APB */
arg.dev = dev;
ambapp_for_each(abus, (OPTIONS_ALL|OPTIONS_APB_SLVS), vendor, device,
ambapp_dev_find_match, &arg);
return maxno - arg.count;
}
int ambapp_find_apbslv(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev)
{
return ambapp_find_apbslvs_next(abus, vendor, device, dev, 0, 1);
}
int ambapp_find_apbslv_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int index)
{
return ambapp_find_apbslvs_next(abus, vendor, device, dev, index, 1);
}
int ambapp_find_apbslvs(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int maxno)
{
return ambapp_find_apbslvs_next(abus, vendor, device, dev, 0, maxno);
}
int ambapp_get_number_apbslv_devices(struct ambapp_bus *abus, int vendor, int device)
{
return ambapp_dev_count(abus, (OPTIONS_ALL|OPTIONS_APB_SLVS), vendor, device);
}
int ambapp_find_ahbslvs_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int index, int maxno)
{
struct ambapp_dev_find_match_arg arg;
arg.index = index;
arg.count = maxno;
arg.type = DEV_AHB_SLV; /* AHB SLV */
arg.dev = dev;
ambapp_for_each(abus, (OPTIONS_ALL|OPTIONS_AHB_SLVS), vendor, device,
ambapp_dev_find_match, &arg);
return maxno - arg.count;
}
int ambapp_find_ahbslv_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int index)
{
return ambapp_find_ahbslvs_next(abus, vendor, device, dev, index, 1);
}
int ambapp_find_ahbslv(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev)
{
return ambapp_find_ahbslvs_next(abus, vendor, device, dev, 0, 1);
}
int ambapp_find_ahbslvs(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int maxno)
{
return ambapp_find_ahbslvs_next(abus, vendor, device, dev, 0, maxno);
}
int ambapp_get_number_ahbslv_devices(struct ambapp_bus *abus, int vendor, int device)
{
return ambapp_dev_count(abus, (OPTIONS_ALL|OPTIONS_AHB_SLVS), vendor, device);
}
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