include/generic_timer.h File Reference

#include "armv7_p15.h"
#include "gic.h"
#include <log/uart_print.h>

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Typedefs
typedef void(*	generic_timer_callback_t )(void *pdata)
Enumerations
enum	generic_timer_type_t { GENERIC_TIMER_HYP, GENERIC_TIMER_VIR, GENERIC_TIMER_NSP, GENERIC_TIMER_NUM_TYPES }
Functions
hvmm_status_t	generic_timer_init ()
hvmm_status_t	generic_timer_enable_int (generic_timer_type_t type)
hvmm_status_t	generic_timer_disable_int (generic_timer_type_t type)
hvmm_status_t	generic_timer_set_tval (generic_timer_type_t type, uint32_t tval)
hvmm_status_t	generic_timer_enable_irq (generic_timer_type_t type)
hvmm_status_t	generic_timer_set_callback (generic_timer_type_t type, generic_timer_callback_t callback)

---

Typedef Documentation

typedef void(* generic_timer_callback_t)(void *pdata)

Definition at line 16 of file generic_timer.h.

---

Enumeration Type Documentation

enum generic_timer_type_t

Enumerator:

GENERIC_TIMER_HYP
GENERIC_TIMER_VIR
GENERIC_TIMER_NSP
GENERIC_TIMER_NUM_TYPES

Definition at line 9 of file generic_timer.h.

             {
    GENERIC_TIMER_HYP,      /* IRQ 26 */
    GENERIC_TIMER_VIR,      /* IRQ 27 */
    GENERIC_TIMER_NSP,      /* IRQ 30 */
    GENERIC_TIMER_NUM_TYPES
} generic_timer_type_t;

---

Function Documentation

hvmm_status_t generic_timer_disable_int

(

generic_timer_type_t

type

)

Definition at line 54 of file generic_timer.c.

{
    uint32_t ctrl;
    hvmm_status_t result = HVMM_STATUS_UNSUPPORTED_FEATURE;

    if ( type == GENERIC_TIMER_HYP ) {
        ctrl = generic_timer_reg_read(GENERIC_TIMER_REG_HYP_CTRL);
        ctrl &= ~GENERIC_TIMER_CTRL_ENABLE;
        ctrl |= GENERIC_TIMER_CTRL_IMASK;

        generic_timer_reg_write(GENERIC_TIMER_REG_HYP_CTRL, ctrl);
        result = HVMM_STATUS_SUCCESS;
    }

    return result;
}

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hvmm_status_t generic_timer_enable_int

(

generic_timer_type_t

type

)

Definition at line 37 of file generic_timer.c.

{
    uint32_t ctrl;
    hvmm_status_t result = HVMM_STATUS_UNSUPPORTED_FEATURE;

    if ( type == GENERIC_TIMER_HYP ) {
        ctrl = generic_timer_reg_read(GENERIC_TIMER_REG_HYP_CTRL);
        ctrl |= GENERIC_TIMER_CTRL_ENABLE;      
        ctrl &= ~GENERIC_TIMER_CTRL_IMASK;
    
        generic_timer_reg_write(GENERIC_TIMER_REG_HYP_CTRL, ctrl);
        result = HVMM_STATUS_SUCCESS;
    }

    return result;
}

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hvmm_status_t generic_timer_enable_irq

(

generic_timer_type_t

type

)

Definition at line 76 of file generic_timer.c.

{
    hvmm_status_t result = HVMM_STATUS_UNSUPPORTED_FEATURE;

    if ( type == GENERIC_TIMER_HYP ) {
        uint32_t irq = _timer_irqs[type];

        gic_test_set_irq_handler(irq, &_generic_timer_hyp_irq_handler, 0);

        gic_test_configure_irq(irq,
            GIC_INT_POLARITY_LEVEL, 
            gic_cpumask_current(),
            GIC_INT_PRIORITY_DEFAULT );

        result = HVMM_STATUS_SUCCESS;
    }
    return result;
}

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hvmm_status_t generic_timer_init

(

)

Definition at line 13 of file generic_timer.c.

{
    _timer_irqs[GENERIC_TIMER_HYP] = 26;
    _timer_irqs[GENERIC_TIMER_NSP] = 27;
    _timer_irqs[GENERIC_TIMER_VIR] = 30;

    return HVMM_STATUS_SUCCESS;
}

hvmm_status_t generic_timer_set_callback	(	generic_timer_type_t	type,
		generic_timer_callback_t	callback
	)

Definition at line 95 of file generic_timer.c.

{
    HVMM_TRACE_ENTER();

    _callback[type] = callback;

    HVMM_TRACE_EXIT();
    return HVMM_STATUS_SUCCESS;
}

hvmm_status_t generic_timer_set_tval	(	generic_timer_type_t	type,
		uint32_t	tval
	)

Definition at line 23 of file generic_timer.c.

{
    hvmm_status_t result = HVMM_STATUS_UNSUPPORTED_FEATURE;

    if ( type == GENERIC_TIMER_HYP) {
        _tvals[type] = tval;
        generic_timer_reg_write(GENERIC_TIMER_REG_HYP_TVAL, tval);
        result = HVMM_STATUS_SUCCESS;
    } else {
    }

    return result;
}

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