picomap/firmware/w6300/w6300.h

#pragma once
#include <array>
#include <cstdint>
#include <expected>
#include <span>

namespace w6300 {

enum class socket_id : uint8_t {};

enum class sock_error : int16_t {
    busy           =     0,
    sock_num       =    -1,
    sock_closed    =    -4,
    sock_mode      =    -5,
    arg            =   -10,
    timeout        =   -13,
    data_len       =   -14,
    fatal_packlen  = -1001,
};

enum class protocol : uint8_t {
    macraw    = 0x07,
};

enum class sock_flag : uint8_t {
    none            = 0,
};

enum intr_kind : uint32_t {
    ik_sock_0 = (1 << 8),
    ik_int_all = 0x00FFFF97
};

void init_spi();
void reset();
void init();
bool check();

extern volatile bool irq_pending;

void clear_interrupt(intr_kind intr);
void set_interrupt_mask(intr_kind intr);
void rearm_gpio_irq();

std::expected<socket_id, sock_error> open_socket(socket_id sn, protocol proto, sock_flag flag);
std::expected<uint16_t, sock_error> send(socket_id sn, std::span<const uint8_t> buf);
std::expected<uint16_t, sock_error> recv(socket_id sn, std::span<uint8_t> buf);

uint16_t get_socket_recv_buf(socket_id sn);

} // namespace w6300