From 3fedd14818592016f7ffd84dfe134881b3896ecf Mon Sep 17 00:00:00 2001 From: David Kiliani Date: Sat, 1 Nov 2008 00:39:12 +0100 Subject: Staging: Add the Meilhaus ME-IDS driver package Originally written by Guenter Gebhardt and Krzysztof Gantzke This is the drv/lnx/mod directory of ME-IDS 1.2.9 tarball with some files from drv/lnx/include. Signed-off-by: David Kiliani Cc: Guenter Gebhardt Cc: Krzysztof Gantzke Signed-off-by: Greg Kroah-Hartman --- drivers/staging/meilhaus/medlist.c | 127 +++++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 drivers/staging/meilhaus/medlist.c (limited to 'drivers/staging/meilhaus/medlist.c') diff --git a/drivers/staging/meilhaus/medlist.c b/drivers/staging/meilhaus/medlist.c new file mode 100644 index 00000000000..ef4e36955dc --- /dev/null +++ b/drivers/staging/meilhaus/medlist.c @@ -0,0 +1,127 @@ +/** + * @file me_dlist.c + * + * @brief Implements the device list class. + * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) + * @author Guenter Gebhardt + */ + +/* + * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "meerror.h" +#include "medefines.h" + +#include "medlist.h" +#include "medebug.h" + +int me_dlist_query_number_devices(struct me_dlist *dlist, int *number) +{ + PDEBUG_LOCKS("called.\n"); + *number = dlist->n; + return ME_ERRNO_SUCCESS; +} + +unsigned int me_dlist_get_number_devices(struct me_dlist *dlist) +{ + PDEBUG_LOCKS("called.\n"); + return dlist->n; +} + +me_device_t *me_dlist_get_device(struct me_dlist * dlist, unsigned int index) +{ + + struct list_head *pos; + me_device_t *device = NULL; + unsigned int i = 0; + + PDEBUG_LOCKS("called.\n"); + + if (index >= dlist->n) { + PERROR("Index out of range.\n"); + return NULL; + } + + list_for_each(pos, &dlist->head) { + if (i == index) { + device = list_entry(pos, me_device_t, list); + break; + } + + ++i; + } + + return device; +} + +void me_dlist_add_device_tail(struct me_dlist *dlist, me_device_t * device) +{ + PDEBUG_LOCKS("called.\n"); + + list_add_tail(&device->list, &dlist->head); + ++dlist->n; +} + +me_device_t *me_dlist_del_device_tail(struct me_dlist *dlist) +{ + + struct list_head *last; + me_device_t *device; + + PDEBUG_LOCKS("called.\n"); + + if (list_empty(&dlist->head)) + return NULL; + + last = dlist->head.prev; + + device = list_entry(last, me_device_t, list); + + list_del(last); + + --dlist->n; + + return device; +} + +int me_dlist_init(me_dlist_t * dlist) +{ + PDEBUG_LOCKS("called.\n"); + + INIT_LIST_HEAD(&dlist->head); + dlist->n = 0; + return 0; +} + +void me_dlist_deinit(me_dlist_t * dlist) +{ + + struct list_head *s; + me_device_t *device; + + PDEBUG_LOCKS("called.\n"); + + while (!list_empty(&dlist->head)) { + s = dlist->head.next; + list_del(s); + device = list_entry(s, me_device_t, list); + device->me_device_destructor(device); + } + + dlist->n = 0; +} -- cgit v1.2.3