1 files changed, 149 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/metempl_sub.c b/drivers/staging/meilhaus/metempl_sub.c
new file mode 100644
index 000000000000..f1d65d889e23
--- /dev/null
+++ b/drivers/staging/meilhaus/metempl_sub.c
@@ -0,0 +1,149 @@
+/**
+ * @file metempl_sub.c
+ *
+ * @brief Subdevice instance.
+ * @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.
+ */
+
+#ifndef __KERNEL__
+#  define __KERNEL__
+#endif
+
+/*
+ * Includes
+ */
+#include <linux/module.h>
+
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <asm/io.h>
+#include <linux/types.h>
+
+#include "medefines.h"
+#include "meinternal.h"
+#include "meerror.h"
+
+#include "medebug.h"
+#include "metempl_sub_reg.h"
+#include "metempl_sub.h"
+
+/*
+ * Defines
+ */
+
+/*
+ * Functions
+ */
+
+static void metempl_sub_destructor(struct me_subdevice *subdevice)
+{
+	metempl_sub_subdevice_t *instance;
+
+	PDEBUG("executed.\n");
+	instance = (metempl_sub_subdevice_t *) subdevice;
+
+	/* Until there this was the things the default constructor does.
+	   If you do not have any additional things to do you can wipe it out. */
+
+	me_subdevice_deinit(&instance->base);
+	kfree(instance);
+}
+
+static int metempl_sub_query_number_channels(me_subdevice_t * subdevice,
+					     int *number)
+{
+	PDEBUG("executed.\n");
+	*number = 0;
+	return ME_ERRNO_SUCCESS;
+}
+
+static int metempl_sub_query_subdevice_type(me_subdevice_t * subdevice,
+					    int *type, int *subtype)
+{
+	PDEBUG("executed.\n");
+	*type = 0;
+	*subtype = 0;
+	return ME_ERRNO_SUCCESS;
+}
+
+static int metempl_sub_query_subdevice_caps(me_subdevice_t * subdevice,
+					    int *caps)
+{
+	PDEBUG("executed.\n");
+	*caps = 0;
+	return ME_ERRNO_SUCCESS;
+}
+
+metempl_sub_subdevice_t *metempl_sub_constructor(uint32_t reg_base,
+						 unsigned int sub_idx,
+						 spinlock_t * ctrl_reg_lock)
+{
+	metempl_sub_subdevice_t *subdevice;
+	int err;
+
+	PDEBUG("executed.\n");
+
+	/* Allocate memory for subdevice instance */
+	subdevice = kmalloc(sizeof(metempl_sub_subdevice_t), GFP_KERNEL);
+
+	if (!subdevice) {
+		PERROR("Cannot get memory for subdevice instance.\n");
+		return NULL;
+	}
+
+	memset(subdevice, 0, sizeof(metempl_sub_subdevice_t));
+
+	/* Check if subdevice index is out of range */
+
+	if (sub_idx >= 2) {
+		PERROR("Template subdevice index is out of range.\n");
+		kfree(subdevice);
+		return NULL;
+	}
+
+	/* Initialize subdevice base class */
+	err = me_subdevice_init(&subdevice->base);
+
+	if (err) {
+		PERROR("Cannot initialize subdevice base class instance.\n");
+		kfree(subdevice);
+		return NULL;
+	}
+	// Initialize spin locks.
+	spin_lock_init(&subdevice->subdevice_lock);
+
+	subdevice->ctrl_reg_lock = ctrl_reg_lock;
+
+	/* Save the subdevice index */
+	subdevice->sub_idx = sub_idx;
+
+	/* Override base class methods. */
+	subdevice->base.me_subdevice_destructor = metempl_sub_destructor;
+	subdevice->base.me_subdevice_query_number_channels =
+	    metempl_sub_query_number_channels;
+	subdevice->base.me_subdevice_query_subdevice_type =
+	    metempl_sub_query_subdevice_type;
+	subdevice->base.me_subdevice_query_subdevice_caps =
+	    metempl_sub_query_subdevice_caps;
+
+	return subdevice;
+}