50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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Copyright (C) 2012, Aaron Lindsay <aaron@aclindsay.com>
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This file is part of Aedrix.
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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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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <init.h>
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#include <drivers/serial.h>
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struct dlist_node serial_dev_list;
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int serial_register_device(struct serial_dev *sdev) {
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if (!sdev)
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return -1;
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insert_before(&serial_dev_list, &sdev->list);
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return 0;
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}
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struct serial_dev *serial_first_device() {
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if (list_empty(&serial_dev_list))
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return 0;
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return container(serial_dev_list.next, struct serial_dev, list);
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}
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/*
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* Initialize the serial sybsystem.
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* Note: this is called directly from the kernel initialization as opposed to
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* being an initcall because it has to be called before the serial drivers get
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* initialized in earlyinitcalls.
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*/
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void serial_init() {
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init_list(&serial_dev_list);
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}
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