1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me1000_dio.h b/drivers/staging/meilhaus/me1000_dio.h
new file mode 100644
index 000000000000..d26e93f531af
--- /dev/null
+++ b/drivers/staging/meilhaus/me1000_dio.h
@@ -0,0 +1,71 @@
+/**
+ * @file me1000_dio.h
+ *
+ * @brief Meilhaus ME-1000 digital i/o implementation.
+ * @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 _ME1000_DIO_H_
+#define _ME1000_DIO_H_
+
+#include "mesubdevice.h"
+#include "meslock.h"
+
+#ifdef __KERNEL__
+
+/**
+ * @brief The ME-1000 DIO subdevice class.
+ */
+typedef struct me1000_dio_subdevice {
+	/* Inheritance */
+	me_subdevice_t base;			/**< The subdevice base class. */
+
+	/* Attributes */
+//      uint32_t magic;                                 /**< The magic number unique for this structure. */
+
+	spinlock_t subdevice_lock;		/**< Spin lock to protect the subdevice from concurrent access. */
+	spinlock_t *ctrl_reg_lock;		/**< Spin lock to protect #ctrl_reg and #ctrl_reg_mirror from concurrent access. */
+	int dio_idx;					/**< The index of the DIO port on the device. */
+
+	unsigned long port_reg;			/**< Register to read or write a value from or to the port respectively. */
+	unsigned long ctrl_reg;			/**< Register to configure the DIO modes. */
+#ifdef MEDEBUG_DEBUG_REG
+	unsigned long reg_base;
+#endif
+} me1000_dio_subdevice_t;
+
+/**
+ * @brief The constructor to generate a ME-1000 DIO instance.
+ *
+ * @param reg_base The register base address of the device as returned by the PCI BIOS.
+ * @param dio_idx The index of the DIO on the device.
+ * @param ctrl_reg_lock Pointer to spin lock protecting the control register and from concurrent access.
+ *
+ * @return Pointer to new instance on success.\n
+ * NULL on error.
+ */
+me1000_dio_subdevice_t *me1000_dio_constructor(uint32_t reg_base,
+					       unsigned int dio_idx,
+					       spinlock_t * ctrl_reg_lock);
+
+#endif
+#endif