/**
 * \file
 * \brief shelly - a shell process
 */

#include <stdio.h>
#include <stdlib.h>

#include <drivers/lpuart.h>
#include <drivers/gic_dist.h>
#include <maps/imx8x_map.h>
#include <maps/qemu_map.h>
#include <aos/aos.h>
#include <aos/inthandler.h>
#include "shelly.h"

__attribute__((__used__))
static void shelly_interrupt_handler(void * arg) {
    // struct shelly_st * shelly_s = (struct shelly_st *) arg;
    debug_printf("[shelly_interrupt_handler]!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
    return;
}

int main(int argc, char *argv[])
{
    errval_t err;
    debug_printf("welcome to shelly!\n");

    struct shelly_st shelly_s;
    //afeer: map device registers
    struct capref cap_arg0 = {
        .cnode = cnode_arg,
        .slot  = 0
    };
    err = paging_map_frame_attr(get_current_paging_state(),
                                (void **) &shelly_s.dev_base, IMX8X_UART_SIZE,
                                cap_arg0, VREGION_FLAGS_READ_WRITE_NOCACHE);
    if (err_is_fail(err)) return err;

    struct gic_dist_s * gic_s;
    //TODO: map gic space
    err = gic_dist_init(&gic_s, NULL);
    if (err_is_fail(err)) USER_PANIC_ERR(err, "couln't init gic_dist interrupts");

    struct lpuart_s * uart_s;
    err = lpuart_init(&uart_s, shelly_s.dev_base);
    if (err_is_fail(err)) {
        USER_PANIC_ERR(err, "couldn't init lpuart");
    }

    struct capref inter_cap;
    err = inthandler_alloc_dest_irq_cap(IMX8X_UART3_INT, &inter_cap);
    if (err_is_fail(err)) USER_PANIC_ERR(err, "couln't alloc dest cap");

    struct waitset * ws = get_default_waitset();
    // waitset_init(&ws);

    err = inthandler_setup(inter_cap, ws, MKCLOSURE(shelly_interrupt_handler, (void *) &shelly_s));
    if (err_is_fail(err)) USER_PANIC_ERR(err, "couln't setup interrupt handler");

    err = gic_dist_enable_interrupt(gic_s, IMX8X_UART3_INT, 0b11111111, 0);
    if (err_is_fail(err)) USER_PANIC_ERR(err, "couln't enable gic interrupts");

    err = lpuart_enable_interrupt(uart_s);
    if (err_is_fail(err)) USER_PANIC_ERR(err, "couln't enable lpuart interrupts");
}