X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Ftimer_dsp56k.h;h=2e29701f0acc10523b76876478dd2cf1f450a24e;hb=6ec920da09a91594581c6d1a8931e72792b73525;hp=2b61e584a9c7d0856441c592e6236d6e5f6fa630;hpb=0fee90eca2cd56674ba7708dc113e8794327cee0;p=bertos.git diff --git a/drv/timer_dsp56k.h b/drv/timer_dsp56k.h index 2b61e584..2e29701f 100755 --- a/drv/timer_dsp56k.h +++ b/drv/timer_dsp56k.h @@ -1,9 +1,10 @@ -/*! +#error This code must be revised for the new timer API +/** * \file * * * \version $Id$ @@ -13,34 +14,64 @@ * \brief Driver module for DSP56K */ -/* - * $Log$ - * Revision 1.1 2004/05/23 18:23:30 bernie - * Import drv/timer module. - * - */ +/*#* + *#* $Log$ + *#* 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 -#include +#include +#include +#include -//! The system timer for events is currently TMRA0. We prefer A/B over C/D because -// A/B share the pin with the quadrature decoder module, and we do not need -// pins for our system timer. -// If you want to change this setting, you need also to modify the IRQ vector table. -#define REG_SYSTEM_TIMER (REG_TIMER_A + 0) -#define SYSTEM_TIMER_IRQ_VECTOR 42 /* TMRA0 */ +// 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 +/// 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 +/// 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; @@ -60,13 +91,12 @@ static void timer_hw_init(void) // The value for reload (at initializationa and after compare is met) is zero REG_SYSTEM_TIMER->LOAD = 0; - // Set the interrupt priority + // 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 PP_CAT2(x,y) x ## y - #define PP_CAT(x,y) PP_CAT2(x,y) #define REG_CONTROL_PRESCALER PP_CAT(REG_TIMER_CTRL_PRIMARY_IPBY, TIMER_PRESCALER) // Setup the counter and start counting @@ -87,9 +117,7 @@ INLINE hptime_t timer_hw_hpread(void) return REG_SYSTEM_TIMER->CNTR; } -void system_timer_isr(void); - #define DEFINE_TIMER_ISR \ - void system_timer_isr(void) + static void system_timer_isr(UNUSED(iptr_t, arg)) #endif /* DRV_TIMER_DSP56_H */