Staging: Add the Meilhaus ME-IDS driver package
Originally written by Guenter Gebhardt <g.gebhardt@meilhaus.de>
and Krzysztof Gantzke <k.gantzke@meilhaus.de>
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 <mail@davidkiliani.de>
Cc: Guenter Gebhardt <g.gebhardt@meilhaus.de>
Cc: Krzysztof Gantzke <k.gantzke@meilhaus.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/meilhaus/medlist.c b/drivers/staging/meilhaus/medlist.c
new file mode 100644
index 0000000..ef4e369
--- /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;
+}