82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*! \file reader_pcsc.c
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* Card reader driver core */
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/*
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* (C) 2018 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <stdio.h>
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#include <talloc.h>
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#include <osmocom/core/linuxlist.h>
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#include "internal.h"
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#include "debug.h"
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static LLIST_HEAD(g_card_reader_drivers);
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static LLIST_HEAD(g_card_readers);
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struct card_reader *card_reader_alloc(void *ctx, const char *name,
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const struct card_reader_driver *drv, void *drv_handle)
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{
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struct card_reader *cr = talloc_zero(ctx, struct card_reader);
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if (!cr)
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return NULL;
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cr->name = talloc_strdup(ctx, name);
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cr->drv = drv;
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cr->drv_handle = drv_handle;
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INIT_LLIST_HEAD(&cr->slots);
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llist_add(&cr->list, &g_card_readers);
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LOGP(DMAIN, LOGL_INFO, "allocated reader '%s'\n", cr->name);
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return cr;
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}
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/* allocate a new slot in the given reader */
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struct card_reader_slot *card_reader_slot_alloc(struct card_reader *cr, unsigned int slot_num)
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{
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struct card_reader_slot *cs = talloc_zero(cr, struct card_reader_slot);
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if (!cs)
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return NULL;
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cs->reader = cr;
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llist_add(&cr->list, &cr->slots);
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cs->num = slot_num;
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return cs;
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}
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/* register a driver with the core, should typcially be called at start-up */
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void card_reader_driver_register(struct card_reader_driver *drv)
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{
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llist_add_tail(&drv->list, &g_card_reader_drivers);
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}
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/* probe all readers on all drivers */
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void card_readers_probe(void *ctx)
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{
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struct card_reader_driver *drv;
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llist_for_each_entry(drv, &g_card_reader_drivers, list) {
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LOGP(DMAIN, LOGL_INFO, "probing driver '%s' for drivers\n", drv->name);
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drv->ops->probe(ctx);
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}
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}
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