--- /dev/null
+/**
+ * \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
+ *
+ * -->
+ *
+ * \brief Hardware support for buzzers and leds in DSP56K-based boards
+ *
+ * \version $Id$
+ *
+ * \author Giovanni Bajo <rasky@develer.com>
+ */
+
+/*#*
+ *#* $Log$
+ *#* Revision 1.7 2006/07/19 12:56:25 bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.6 2005/11/04 16:20:02 bernie
+ *#* Fix reference to README.devlib in header.
+ *#*
+ *#* Revision 1.5 2005/04/11 19:10:27 bernie
+ *#* Include top-level headers from cfg/ subdir.
+ *#*
+ *#* Revision 1.4 2004/11/16 21:54:43 bernie
+ *#* Changes for SC Monoboard support.
+ *#*
+ *#* Revision 1.3 2004/08/25 14:12:08 rasky
+ *#* Aggiornato il comment block dei log RCS
+ *#*
+ *#* Revision 1.2 2004/06/03 11:27:09 bernie
+ *#* Add dual-license information.
+ *#*
+ *#* Revision 1.1 2004/05/23 18:36:05 bernie
+ *#* Import buzzerled driver.
+ *#*
+ *#*/
+
+#ifndef DRV_BUZZERLED_DSP56K_H
+#define DRV_BUZZERLED_DSP56K_H
+
+#include <cfg/compiler.h>
+#include <hw.h>
+#include "pwm.h"
+
+#if ARCH & ARCH_HECO
+
+/**
+ * \name Connection of the leds to the DSP:
+ * <pre>
+ * Led Line DSP Pin
+ * ---------------------------
+ * YELLOW T2 HOME1/TB3
+ * GREEN T3 INDX1/TB2
+ * RED T4 PHB1/TB1
+ * </pre>
+ */
+
+INLINE bool bld_is_inverted_intensity(enum BLD_DEVICE device)
+{
+ return (device == BLD_GREEN_LED
+ || device == BLD_YELLOW_LED
+ || device == BLD_RED_LED);
+}
+
+INLINE bool bld_is_pwm(enum BLD_DEVICE device)
+{
+ // Only the buzzer is connected to a PWM
+ return (device == BLD_BUZZER || device == BLD_READY_LED);
+}
+
+INLINE bool bld_is_timer(enum BLD_DEVICE device)
+{
+ // LEDs are connected to timers
+ return (device == BLD_GREEN_LED || device == BLD_YELLOW_LED || device == BLD_RED_LED);
+}
+
+INLINE uint16_t bld_get_pwm(enum BLD_DEVICE device)
+{
+ switch (device)
+ {
+ default: ASSERT(0);
+ case BLD_BUZZER: return 5; // PWMA5
+ case BLD_READY_LED: return 9; // PWMB3
+ }
+}
+
+
+INLINE struct REG_TIMER_STRUCT* bld_get_timer(enum BLD_DEVICE device)
+{
+ switch (device)
+ {
+ default: ASSERT(0);
+ case BLD_GREEN_LED: return ®_TIMER_B[2];
+ case BLD_RED_LED: return ®_TIMER_B[1];
+ case BLD_YELLOW_LED: return ®_TIMER_B[3];
+ }
+}
+
+INLINE void bld_hw_init(void)
+{
+}
+
+INLINE void bld_hw_set(enum BLD_DEVICE device, bool enable)
+{
+ if (bld_is_inverted_intensity(device))
+ enable = !enable;
+
+ // Handle a BLD connected to a PWM
+ if (bld_is_pwm(device))
+ {
+ struct PWM* pwm = pwm_get_handle(bld_get_pwm(device));
+
+ pwm_set_enable(pwm, false);
+ pwm_set_dutycycle_percent(pwm, (enable ? 50 : 0));
+ pwm_set_enable(pwm, true);
+ }
+ else if (bld_is_timer(device))
+ {
+ struct REG_TIMER_STRUCT* timer = bld_get_timer(device);
+
+ // Check that the timer is currently stopped, and the OFLAG is not
+ // controlled by another timer. Otherwise, the led is already
+ // controlled by the timer, and we cannot correctly set it
+ // on/off without reprogramming the timer.
+ ASSERT((timer->CTRL & REG_TIMER_CTRL_MODE_MASK) == REG_TIMER_CTRL_MODE_STOP);
+ ASSERT(!(timer->SCR & REG_TIMER_SCR_EEOF));
+
+ // Check also that polarity is correct
+ ASSERT(!(timer->SCR & REG_TIMER_SCR_OPS));
+
+ // Without programming the timer, we have a way to manually force a certain
+ // value on the external pin. We also need to enable the output pin.
+ timer->SCR &= ~REG_TIMER_SCR_VAL_1;
+ timer->SCR |= REG_TIMER_SCR_OEN |
+ REG_TIMER_SCR_FORCE |
+ (!enable ? REG_TIMER_SCR_VAL_0 : REG_TIMER_SCR_VAL_1);
+ }
+ else
+ ASSERT(0);
+}
+
+#elif ARCH & ARCH_SC
+
+// We do not need inline functions here, because constant propagation is not big deal here
+void bld_hw_init(void);
+void bld_hw_set(enum BLD_DEVICE device, bool enable);
+
+#endif
+
+#endif /* DRV_BUZZERLED_DSP56K_H */
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