--- /dev/null
+#error This code must be revised for the new timer API
+/**
+ * \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 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2004 Giovanni Bajo
+ *
+ * -->
+ *
+ * \version $Id$
+ *
+ * \author Giovanni Bajo <rasky@develer.com>
+ *
+ * \brief Driver module for DSP56K
+ */
+
+/*#*
+ *#* $Log$
+ *#* Revision 1.10 2006/07/19 12:56:26 bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.9 2006/02/21 21:28:02 bernie
+ *#* New time handling based on TIMER_TICKS_PER_SEC to support slow timers with ticks longer than 1ms.
+ *#*
+ *#* Revision 1.8 2005/11/04 16:20:02 bernie
+ *#* Fix reference to README.devlib in header.
+ *#*
+ *#* Revision 1.7 2005/04/11 19:10:28 bernie
+ *#* Include top-level headers from cfg/ subdir.
+ *#*
+ *#* Revision 1.6 2004/11/16 22:37:14 bernie
+ *#* Replace IPTR with iptr_t.
+ *#*
+ *#* Revision 1.5 2004/08/25 14:12:08 rasky
+ *#* Aggiornato il comment block dei log RCS
+ *#*
+ *#* Revision 1.4 2004/07/30 14:27:49 rasky
+ *#* Aggiornati alcuni file DSP56k per la nuova libreria di IRQ management
+ *#*
+ *#* Revision 1.3 2004/06/06 18:30:34 bernie
+ *#* Import DSP56800 changes from SC.
+ *#*
+ *#* Revision 1.2 2004/06/03 11:27:09 bernie
+ *#* Add dual-license information.
+ *#*
+ *#* Revision 1.1 2004/05/23 18:23:30 bernie
+ *#* Import drv/timer module.
+ *#*
+ *#*/
+
+#ifndef DRV_TIMER_DSP56K_H
+#define DRV_TIMER_DSP56K_H
+
+#include "timer.h"
+#include <DSP56F807.h>
+#include <cfg/compiler.h>
+#include <hw.h>
+#include <drv/irq.h>
+
+// Calculate register pointer and irq vector from hw.h setting
+#define REG_SYSTEM_TIMER PP_CAT(REG_TIMER_, SYSTEM_TIMER)
+#define SYSTEM_TIMER_IRQ_VECTOR PP_CAT(IRQ_TIMER_, SYSTEM_TIMER)
+
+/// Prescaler for the system timer
+#define TIMER_PRESCALER 16
+
+/// Frequency of the hardware high precision timer
+#define TIMER_HW_HPTICKS_PER_SEC (IPBUS_FREQ / TIMER_PRESCALER)
+
+/// Type of time expressed in ticks of the hardware high precision timer
+typedef uint16_t hptime_t;
+
+static void system_timer_isr(UNUSED(iptr_t, arg));
+
+static void timer_hw_init(void)
+{
+ uint16_t compare;
+
+ // Clear compare flag status and enable interrupt on compare
+ REG_SYSTEM_TIMER->SCR &= ~REG_TIMER_SCR_TCF;
+ REG_SYSTEM_TIMER->SCR |= REG_TIMER_SCR_TCFIE;
+
+ // Calculate the compare value needed to generate an interrupt exactly
+ // TICKS_PER_SEC times each second (usually, every millisecond). Check that
+ // the calculation is accurate, otherwise there is a precision error
+ // (probably the prescaler is too big or too small).
+ compare = TIMER_HW_HPTICKS_PER_SEC / TICKS_PER_SEC;
+ ASSERT((uint32_t)compare * TICKS_PER_SEC == IPBUS_FREQ / TIMER_PRESCALER);
+ REG_SYSTEM_TIMER->CMP1 = compare;
+
+ // The value for reload (at initializationa and after compare is met) is zero
+ REG_SYSTEM_TIMER->LOAD = 0;
+
+ // Set the interrupt handler and priority
+ irq_install(SYSTEM_TIMER_IRQ_VECTOR, &system_timer_isr, NULL);
+ irq_setpriority(SYSTEM_TIMER_IRQ_VECTOR, IRQ_PRIORITY_SYSTEM_TIMER);
+
+ // Small preprocessor trick to generate the REG_TIMER_CTRL_PRIMARY_IPBYNN macro
+ // needed to set the prescaler
+ #define REG_CONTROL_PRESCALER PP_CAT(REG_TIMER_CTRL_PRIMARY_IPBY, TIMER_PRESCALER)
+
+ // Setup the counter and start counting
+ REG_SYSTEM_TIMER->CTRL =
+ REG_TIMER_CTRL_MODE_RISING | // count rising edges (normal)
+ REG_CONTROL_PRESCALER | // frequency (IPbus / TIMER_PRESCALER)
+ REG_TIMER_CTRL_LENGTH; // up to CMP1, then reload
+}
+
+INLINE void timer_hw_irq(void)
+{
+ // Clear the overflow flag so that we are ready for another interrupt
+ REG_SYSTEM_TIMER->SCR &= ~REG_TIMER_SCR_TCF;
+}
+
+INLINE hptime_t timer_hw_hpread(void)
+{
+ return REG_SYSTEM_TIMER->CNTR;
+}
+
+#define DEFINE_TIMER_ISR \
+ static void system_timer_isr(UNUSED(iptr_t, arg))
+
+#endif /* DRV_TIMER_DSP56_H */
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