X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Ftimer_dsp56k.h;h=b7f325836077a90de8acbec3b4dfef7743b45894;hb=4afd09ec0c80aa1611fc3b5a3517e9c0d1755cfd;hp=2b61e584a9c7d0856441c592e6236d6e5f6fa630;hpb=0fee90eca2cd56674ba7708dc113e8794327cee0;p=bertos.git diff --git a/drv/timer_dsp56k.h b/drv/timer_dsp56k.h index 2b61e584..b7f32583 100755 --- a/drv/timer_dsp56k.h +++ b/drv/timer_dsp56k.h @@ -3,7 +3,7 @@ * * * \version $Id$ @@ -15,6 +15,15 @@ /* * $Log$ + * 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. * @@ -23,16 +32,17 @@ #ifndef DRV_TIMER_DSP56K_H #define DRV_TIMER_DSP56K_H +#include "timer.h" #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 @@ -41,6 +51,8 @@ //! Type of time expressed in ticks of the hardware high precision timer typedef uint16_t hptime_t; +static void system_timer_isr(UNUSED(IPTR, arg)); + static void timer_hw_init(void) { uint16_t compare; @@ -60,13 +72,12 @@ 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 +98,7 @@ 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, arg)) #endif /* DRV_TIMER_DSP56_H */