forked from Imagelibrary/rtems
113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
/*
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* Old AMBA scanning Interface provided for backwards compability
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*
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* COPYRIGHT (c) 2011
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* Aeroflex Gaisler
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <grlib/ambapp.h>
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struct ambapp_dev_find_match_arg {
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int index;
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int count;
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int type;
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void *dev;
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};
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/* AMBA PP find routines */
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static int ambapp_dev_find_match(struct ambapp_dev *dev, int index, void *arg)
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{
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struct ambapp_dev_find_match_arg *p = arg;
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if (p->index == 0) {
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/* Found controller, stop */
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if (p->type == DEV_APB_SLV) {
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*(struct ambapp_apb_info *)p->dev = *DEV_TO_APB(dev);
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p->dev = ((struct ambapp_apb_info *)p->dev)+1;
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} else {
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*(struct ambapp_ahb_info *)p->dev = *DEV_TO_AHB(dev);
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p->dev = ((struct ambapp_ahb_info *)p->dev)+1;
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}
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p->count--;
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if (p->count < 1)
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return 1;
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} else {
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p->index--;
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}
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return 0;
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}
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int ambapp_find_apbslvs_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int index, int maxno)
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{
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struct ambapp_dev_find_match_arg arg;
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arg.index = index;
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arg.count = maxno;
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arg.type = DEV_APB_SLV; /* APB */
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arg.dev = dev;
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ambapp_for_each(abus, (OPTIONS_ALL|OPTIONS_APB_SLVS), vendor, device,
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ambapp_dev_find_match, &arg);
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return maxno - arg.count;
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}
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int ambapp_find_apbslv(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev)
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{
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return ambapp_find_apbslvs_next(abus, vendor, device, dev, 0, 1);
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}
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int ambapp_find_apbslv_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int index)
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{
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return ambapp_find_apbslvs_next(abus, vendor, device, dev, index, 1);
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}
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int ambapp_find_apbslvs(struct ambapp_bus *abus, int vendor, int device, struct ambapp_apb_info *dev, int maxno)
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{
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return ambapp_find_apbslvs_next(abus, vendor, device, dev, 0, maxno);
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}
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int ambapp_get_number_apbslv_devices(struct ambapp_bus *abus, int vendor, int device)
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{
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return ambapp_dev_count(abus, (OPTIONS_ALL|OPTIONS_APB_SLVS), vendor, device);
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}
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int ambapp_find_ahbslvs_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int index, int maxno)
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{
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struct ambapp_dev_find_match_arg arg;
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arg.index = index;
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arg.count = maxno;
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arg.type = DEV_AHB_SLV; /* AHB SLV */
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arg.dev = dev;
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ambapp_for_each(abus, (OPTIONS_ALL|OPTIONS_AHB_SLVS), vendor, device,
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ambapp_dev_find_match, &arg);
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return maxno - arg.count;
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}
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int ambapp_find_ahbslv_next(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int index)
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{
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return ambapp_find_ahbslvs_next(abus, vendor, device, dev, index, 1);
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}
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int ambapp_find_ahbslv(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev)
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{
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return ambapp_find_ahbslvs_next(abus, vendor, device, dev, 0, 1);
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}
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int ambapp_find_ahbslvs(struct ambapp_bus *abus, int vendor, int device, struct ambapp_ahb_info *dev, int maxno)
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{
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return ambapp_find_ahbslvs_next(abus, vendor, device, dev, 0, maxno);
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}
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int ambapp_get_number_ahbslv_devices(struct ambapp_bus *abus, int vendor, int device)
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{
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return ambapp_dev_count(abus, (OPTIONS_ALL|OPTIONS_AHB_SLVS), vendor, device);
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}
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