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bertos/drv/adc.c

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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/)
+ *
+ * -->
+ *
+ * \brief ADC driver (implementation)
+ *
+ * \author Francesco Sacchi <batt@develer.com>
+ */
+
+#include <drv/adc.h>
+
+#ifndef WIZ_AUTOGEN
+	#warning Deprecated: now you should include adc_<cpu> directly in the makefile. Remove this line and the following once done.
+	#include CPU_CSOURCE(adc)
+#else
+	#include CPU_HEADER(adc)
+#endif
+
+#include <cfg/debug.h>     // ASSERT()
+#include <cfg/macros.h>    // MIN()
+#include <cfg/compiler.h>
+#include <cfg/module.h>
+
+/**
+ * Read the ADC channel \a ch.
+ */
+adcread_t adc_read(adc_ch_t ch)
+{
+	ASSERT(ch <= (adc_ch_t)ADC_MUX_MAXCH);
+	ch = MIN(ch, (adc_ch_t)ADC_MUX_MAXCH);
+
+	adc_hw_select_ch(ch);
+
+	return(adc_hw_read());
+}
+
+MOD_DEFINE(adc);
+
+/**
+ * Initialize the ADC hardware.
+ */
+void adc_init(void)
+{
+	adc_hw_init();
+
+	MOD_INIT(adc);
+}