X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fdrv%2Fmcp41.h;fp=bertos%2Fdrv%2Fmcp41.h;h=266b539b6ddf8e5eca08092e85da2f42e65a4c47;hb=791e167e053bdd9250d34a9a5ccae6ccde4d6679;hp=0000000000000000000000000000000000000000;hpb=faf2f6bfd5933ff75e6cc01e3d48f9277f731d8f;p=bertos.git

diff --git a/bertos/drv/mcp41.h b/bertos/drv/mcp41.h
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+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
+ * -->
+ *
+ * \version $Id$
+ *
+ * \brief MCP41xxx digital potentiomenter driver (interface)
+ *
+ * \version $Id$
+ * \author Francesco Sacchi <batt@develer.com>
+ */
+
+#ifndef DRV_MCP41_H
+#define DRV_MCP41_H
+
+#include <hw/mcp41_map.h>
+#include <cfg/compiler.h>
+#include <drv/ser.h>
+
+#define MCP41_WRITE_DATA 0x11
+#define MCP41_HW_MAX     255
+#define MCP41_MAX        999
+
+/**
+ * Type for digital potentiometer resistance.
+ */
+typedef uint16_t mcp41_res_t;
+
+void mcp41_setResistance(Mcp41Dev dev, mcp41_res_t res);
+void mcp41_init(Serial *spi_port);
+
+#endif /* DRV_MCP41_H */