-/**
- * \file
- * <!--
- * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
- * -->
- *
- * \version $Id$
- *
- * \brief MCP41xxx digital potentiomenter driver (implementation)
- *
- * \version $Id$
- * \author Francesco Sacchi <batt@develer.com>
- */
-
-#include <drv/timer.h>
-
-#include <cfg/macros.h>
-#include <cfg/cpu.h>
-#include <cfg/compiler.h>
-
-#include <hw_mcp41.h>
-#include <drv/mcp41.h>
-#include <drv/ser.h>
-
-static Serial *spi_ser;
-
-/**
- * Set resitance for digital pot \a dev
- */
-void mcp41_setResistance(Mcp41Dev dev, mcp41_res_t res)
-{
- MCP41_ON(dev);
- /* send command byte */
- ser_putchar(MCP41_WRITE_DATA, spi_ser);
- ser_putchar(((MCP41_HW_MAX * (uint32_t)res) + (MCP41_MAX / 2)) / MCP41_MAX, spi_ser);
- ser_drain(spi_ser);
-
- MCP41_OFF(dev);
-}
-
-
-/**
- * Initialize mcp41 potentiometer driver
- */
-void mcp41_init(Serial *spi_port)
-{
- Mcp41Dev dev;
-
- /* Init all potentiometer ports */
- for (dev = 0; dev < MCP41_CNT; dev++)
- {
- SET_MCP41_DDR(dev);
- MCP41_OFF(dev);
- }
-
- spi_ser = spi_port;
-}