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/* Copyright 2018 SiFive, Inc */
/* SPDX-License-Identifier: Apache-2.0 */
#include <metal/machine/platform.h>
#ifdef METAL_SIFIVE_GPIO_BUTTONS
#include <string.h>
#include <metal/drivers/riscv_cpu.h>
#include <metal/drivers/sifive_gpio-buttons.h>
#include <metal/machine.h>
int __metal_driver_button_exist (struct metal_button *button, char *label)
{
if (strcmp(__metal_driver_sifive_gpio_button_label(button), label) == 0) {
return 1;
}
return 0;
}
struct metal_interrupt *
__metal_driver_button_interrupt_controller(struct metal_button *button)
{
return __metal_driver_sifive_gpio_button_interrupt_controller(button);
}
int __metal_driver_button_get_interrupt_id(struct metal_button *button)
{
int irq, max_irq;
struct metal_interrupt *irc;
irq = __metal_driver_sifive_gpio_button_interrupt_line(button);
irc = __metal_driver_sifive_gpio_button_interrupt_controller(button);
if (irc != NULL) {
max_irq = _metal_interrupt_command_request(irc,
METAL_MAX_INTERRUPT_GET,
NULL);
if (irq < max_irq) {
return _metal_interrupt_command_request(irc,
METAL_INDEX_INTERRUPT_GET,
(void *)&irq);
}
}
return METAL_INTERRUPT_ID_LCMX;
}
__METAL_DEFINE_VTABLE(__metal_driver_vtable_sifive_button) = {
.button_vtable.button_exist = __metal_driver_button_exist,
.button_vtable.interrupt_controller = __metal_driver_button_interrupt_controller,
.button_vtable.get_interrupt_id = __metal_driver_button_get_interrupt_id,
};
#endif
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