502 lines
17 KiB
C
502 lines
17 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include "py/objlist.h"
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#include "py/runtime.h"
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#include "py/stream.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "lib/netutils/netutils.h"
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#include "modnetwork.h"
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#include "pin.h"
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#include "genhdr/pins.h"
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#include "spi.h"
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#include "ethernet/wizchip_conf.h"
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#include "ethernet/socket.h"
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#include "internet/dns/dns.h"
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/// \moduleref network
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typedef struct _wiznet5k_obj_t {
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mp_obj_base_t base;
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mp_uint_t cris_state;
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SPI_HandleTypeDef *spi;
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const pin_obj_t *cs;
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const pin_obj_t *rst;
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uint8_t socket_used;
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} wiznet5k_obj_t;
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STATIC wiznet5k_obj_t wiznet5k_obj;
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STATIC void wiz_cris_enter(void) {
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wiznet5k_obj.cris_state = MICROPY_BEGIN_ATOMIC_SECTION();
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}
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STATIC void wiz_cris_exit(void) {
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MICROPY_END_ATOMIC_SECTION(wiznet5k_obj.cris_state);
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}
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STATIC void wiz_cs_select(void) {
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mp_hal_pin_low(wiznet5k_obj.cs);
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}
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STATIC void wiz_cs_deselect(void) {
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mp_hal_pin_high(wiznet5k_obj.cs);
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}
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STATIC void wiz_spi_read(uint8_t *buf, uint32_t len) {
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HAL_StatusTypeDef status = HAL_SPI_Receive(wiznet5k_obj.spi, buf, len, 5000);
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(void)status;
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}
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STATIC void wiz_spi_write(const uint8_t *buf, uint32_t len) {
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HAL_StatusTypeDef status = HAL_SPI_Transmit(wiznet5k_obj.spi, (uint8_t*)buf, len, 5000);
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(void)status;
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}
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STATIC int wiznet5k_gethostbyname(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *out_ip) {
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uint8_t dns_ip[MOD_NETWORK_IPADDR_BUF_SIZE] = {8, 8, 8, 8};
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uint8_t *buf = m_new(uint8_t, MAX_DNS_BUF_SIZE);
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DNS_init(0, buf);
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mp_int_t ret = DNS_run(dns_ip, (uint8_t*)name, out_ip);
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m_del(uint8_t, buf, MAX_DNS_BUF_SIZE);
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if (ret == 1) {
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// success
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return 0;
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} else {
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// failure
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return -2;
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}
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}
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STATIC int wiznet5k_socket_socket(mod_network_socket_obj_t *socket, int *_errno) {
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if (socket->u_param.domain != MOD_NETWORK_AF_INET) {
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*_errno = MP_EAFNOSUPPORT;
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return -1;
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}
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switch (socket->u_param.type) {
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case MOD_NETWORK_SOCK_STREAM: socket->u_param.type = Sn_MR_TCP; break;
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case MOD_NETWORK_SOCK_DGRAM: socket->u_param.type = Sn_MR_UDP; break;
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default: *_errno = MP_EINVAL; return -1;
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}
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if (socket->u_param.fileno == -1) {
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// get first unused socket number
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for (mp_uint_t sn = 0; sn < _WIZCHIP_SOCK_NUM_; sn++) {
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if ((wiznet5k_obj.socket_used & (1 << sn)) == 0) {
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wiznet5k_obj.socket_used |= (1 << sn);
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socket->u_param.fileno = sn;
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break;
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}
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}
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if (socket->u_param.fileno == -1) {
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// too many open sockets
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*_errno = MP_EMFILE;
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return -1;
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}
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}
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// WIZNET does not have a concept of pure "open socket". You need to know
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// if it's a server or client at the time of creation of the socket.
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// So, we defer the open until we know what kind of socket we want.
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// use "domain" to indicate that this socket has not yet been opened
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socket->u_param.domain = 0;
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return 0;
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}
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STATIC void wiznet5k_socket_close(mod_network_socket_obj_t *socket) {
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uint8_t sn = (uint8_t)socket->u_param.fileno;
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if (sn < _WIZCHIP_SOCK_NUM_) {
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wiznet5k_obj.socket_used &= ~(1 << sn);
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WIZCHIP_EXPORT(close)(sn);
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}
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}
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STATIC int wiznet5k_socket_bind(mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno) {
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// open the socket in server mode (if port != 0)
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mp_int_t ret = WIZCHIP_EXPORT(socket)(socket->u_param.fileno, socket->u_param.type, port, 0);
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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// indicate that this socket has been opened
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socket->u_param.domain = 1;
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// success
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return 0;
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}
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STATIC int wiznet5k_socket_listen(mod_network_socket_obj_t *socket, mp_int_t backlog, int *_errno) {
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mp_int_t ret = WIZCHIP_EXPORT(listen)(socket->u_param.fileno);
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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return 0;
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}
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STATIC int wiznet5k_socket_accept(mod_network_socket_obj_t *socket, mod_network_socket_obj_t *socket2, byte *ip, mp_uint_t *port, int *_errno) {
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for (;;) {
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int sr = getSn_SR((uint8_t)socket->u_param.fileno);
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if (sr == SOCK_ESTABLISHED) {
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socket2->u_param = socket->u_param;
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getSn_DIPR((uint8_t)socket2->u_param.fileno, ip);
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*port = getSn_PORT(socket2->u_param.fileno);
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// WIZnet turns the listening socket into the client socket, so we
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// need to re-bind and re-listen on another socket for the server.
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// TODO handle errors, especially no-more-sockets error
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socket->u_param.domain = MOD_NETWORK_AF_INET;
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socket->u_param.fileno = -1;
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int _errno2;
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if (wiznet5k_socket_socket(socket, &_errno2) != 0) {
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//printf("(bad resocket %d)\n", _errno2);
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} else if (wiznet5k_socket_bind(socket, NULL, *port, &_errno2) != 0) {
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//printf("(bad rebind %d)\n", _errno2);
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} else if (wiznet5k_socket_listen(socket, 0, &_errno2) != 0) {
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//printf("(bad relisten %d)\n", _errno2);
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}
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return 0;
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}
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if (sr == SOCK_CLOSED || sr == SOCK_CLOSE_WAIT) {
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wiznet5k_socket_close(socket);
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*_errno = MP_ENOTCONN; // ??
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return -1;
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}
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mp_hal_delay_ms(1);
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}
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}
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STATIC int wiznet5k_socket_connect(mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno) {
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// use "bind" function to open the socket in client mode
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if (wiznet5k_socket_bind(socket, ip, 0, _errno) != 0) {
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return -1;
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}
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// now connect
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MP_THREAD_GIL_EXIT();
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mp_int_t ret = WIZCHIP_EXPORT(connect)(socket->u_param.fileno, ip, port);
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MP_THREAD_GIL_ENTER();
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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// success
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return 0;
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}
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STATIC mp_uint_t wiznet5k_socket_send(mod_network_socket_obj_t *socket, const byte *buf, mp_uint_t len, int *_errno) {
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MP_THREAD_GIL_EXIT();
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mp_int_t ret = WIZCHIP_EXPORT(send)(socket->u_param.fileno, (byte*)buf, len);
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MP_THREAD_GIL_ENTER();
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// TODO convert Wiz errno's to POSIX ones
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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return ret;
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}
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STATIC mp_uint_t wiznet5k_socket_recv(mod_network_socket_obj_t *socket, byte *buf, mp_uint_t len, int *_errno) {
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MP_THREAD_GIL_EXIT();
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mp_int_t ret = WIZCHIP_EXPORT(recv)(socket->u_param.fileno, buf, len);
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MP_THREAD_GIL_ENTER();
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// TODO convert Wiz errno's to POSIX ones
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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return ret;
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}
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STATIC mp_uint_t wiznet5k_socket_sendto(mod_network_socket_obj_t *socket, const byte *buf, mp_uint_t len, byte *ip, mp_uint_t port, int *_errno) {
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if (socket->u_param.domain == 0) {
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// socket not opened; use "bind" function to open the socket in client mode
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if (wiznet5k_socket_bind(socket, ip, 0, _errno) != 0) {
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return -1;
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}
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}
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MP_THREAD_GIL_EXIT();
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mp_int_t ret = WIZCHIP_EXPORT(sendto)(socket->u_param.fileno, (byte*)buf, len, ip, port);
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MP_THREAD_GIL_ENTER();
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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return ret;
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}
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STATIC mp_uint_t wiznet5k_socket_recvfrom(mod_network_socket_obj_t *socket, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno) {
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uint16_t port2;
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MP_THREAD_GIL_EXIT();
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mp_int_t ret = WIZCHIP_EXPORT(recvfrom)(socket->u_param.fileno, buf, len, ip, &port2);
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MP_THREAD_GIL_ENTER();
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*port = port2;
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if (ret < 0) {
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wiznet5k_socket_close(socket);
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*_errno = -ret;
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return -1;
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}
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return ret;
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}
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STATIC int wiznet5k_socket_setsockopt(mod_network_socket_obj_t *socket, mp_uint_t level, mp_uint_t opt, const void *optval, mp_uint_t optlen, int *_errno) {
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// TODO
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*_errno = MP_EINVAL;
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return -1;
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}
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STATIC int wiznet5k_socket_settimeout(mod_network_socket_obj_t *socket, mp_uint_t timeout_ms, int *_errno) {
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// TODO
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*_errno = MP_EINVAL;
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return -1;
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/*
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if (timeout_ms == 0) {
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// set non-blocking mode
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uint8_t arg = SOCK_IO_NONBLOCK;
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WIZCHIP_EXPORT(ctlsocket)(socket->u_param.fileno, CS_SET_IOMODE, &arg);
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}
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*/
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}
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STATIC int wiznet5k_socket_ioctl(mod_network_socket_obj_t *socket, mp_uint_t request, mp_uint_t arg, int *_errno) {
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if (request == MP_STREAM_POLL) {
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int ret = 0;
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if (arg & MP_STREAM_POLL_RD && getSn_RX_RSR(socket->u_param.fileno) != 0) {
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ret |= MP_STREAM_POLL_RD;
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}
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if (arg & MP_STREAM_POLL_WR && getSn_TX_FSR(socket->u_param.fileno) != 0) {
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ret |= MP_STREAM_POLL_WR;
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}
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return ret;
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} else {
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*_errno = MP_EINVAL;
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return MP_STREAM_ERROR;
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}
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}
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#if 0
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STATIC void wiznet5k_socket_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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wiznet5k_socket_obj_t *self = self_in;
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print(env, "<WIZNET5K.socket sn=%u MR=0x%02x>", self->sn, getSn_MR(self->sn));
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}
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STATIC mp_obj_t wiznet5k_socket_disconnect(mp_obj_t self_in) {
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mp_int_t ret = WIZCHIP_EXPORT(disconnect)(self->sn);
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return 0;
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}
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#endif
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/******************************************************************************/
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// MicroPython bindings
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/// \classmethod \constructor(spi, pin_cs, pin_rst)
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/// Create and return a WIZNET5K object.
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STATIC mp_obj_t wiznet5k_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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// check arguments
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mp_arg_check_num(n_args, n_kw, 3, 3, false);
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// init the wiznet5k object
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wiznet5k_obj.base.type = (mp_obj_type_t*)&mod_network_nic_type_wiznet5k;
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wiznet5k_obj.cris_state = 0;
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wiznet5k_obj.spi = spi_get_handle(args[0]);
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wiznet5k_obj.cs = pin_find(args[1]);
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wiznet5k_obj.rst = pin_find(args[2]);
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wiznet5k_obj.socket_used = 0;
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/*!< SPI configuration */
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wiznet5k_obj.spi->Init.Mode = SPI_MODE_MASTER;
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wiznet5k_obj.spi->Init.Direction = SPI_DIRECTION_2LINES;
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wiznet5k_obj.spi->Init.DataSize = SPI_DATASIZE_8BIT;
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wiznet5k_obj.spi->Init.CLKPolarity = SPI_POLARITY_LOW; // clock is low when idle
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wiznet5k_obj.spi->Init.CLKPhase = SPI_PHASE_1EDGE; // data latched on first edge, which is rising edge for low-idle
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wiznet5k_obj.spi->Init.NSS = SPI_NSS_SOFT;
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wiznet5k_obj.spi->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; // clock freq = f_PCLK / this_prescale_value; Wiz820i can do up to 80MHz
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wiznet5k_obj.spi->Init.FirstBit = SPI_FIRSTBIT_MSB;
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wiznet5k_obj.spi->Init.TIMode = SPI_TIMODE_DISABLED;
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wiznet5k_obj.spi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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wiznet5k_obj.spi->Init.CRCPolynomial = 7; // unused
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spi_init(wiznet5k_obj.spi, false);
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mp_hal_pin_output(wiznet5k_obj.cs);
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mp_hal_pin_output(wiznet5k_obj.rst);
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mp_hal_pin_low(wiznet5k_obj.rst);
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mp_hal_delay_ms(1); // datasheet says 2us
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mp_hal_pin_high(wiznet5k_obj.rst);
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mp_hal_delay_ms(160); // datasheet says 150ms
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reg_wizchip_cris_cbfunc(wiz_cris_enter, wiz_cris_exit);
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reg_wizchip_cs_cbfunc(wiz_cs_select, wiz_cs_deselect);
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reg_wizchip_spi_cbfunc(wiz_spi_read, wiz_spi_write);
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uint8_t sn_size[16] = {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2}; // 2k buffer for each socket
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ctlwizchip(CW_INIT_WIZCHIP, sn_size);
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// set some sensible default values; they are configurable using ifconfig method
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wiz_NetInfo netinfo = {
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.mac = {0x00, 0x08, 0xdc, 0xab, 0xcd, 0xef},
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.ip = {192, 168, 0, 18},
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.sn = {255, 255, 255, 0},
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.gw = {192, 168, 0, 1},
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.dns = {8, 8, 8, 8}, // Google public DNS
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.dhcp = NETINFO_STATIC,
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};
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ctlnetwork(CN_SET_NETINFO, (void*)&netinfo);
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// seems we need a small delay after init
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mp_hal_delay_ms(250);
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// register with network module
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mod_network_register_nic(&wiznet5k_obj);
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// return wiznet5k object
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return &wiznet5k_obj;
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}
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/// \method regs()
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/// Dump WIZNET5K registers.
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STATIC mp_obj_t wiznet5k_regs(mp_obj_t self_in) {
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//wiznet5k_obj_t *self = self_in;
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printf("Wiz CREG:");
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for (int i = 0; i < 0x50; ++i) {
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if (i % 16 == 0) {
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printf("\n %04x:", i);
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}
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#if MICROPY_PY_WIZNET5K == 5200
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uint32_t reg = i;
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#else
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uint32_t reg = _W5500_IO_BASE_ | i << 8;
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#endif
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printf(" %02x", WIZCHIP_READ(reg));
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}
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for (int sn = 0; sn < 4; ++sn) {
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printf("\nWiz SREG[%d]:", sn);
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for (int i = 0; i < 0x30; ++i) {
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if (i % 16 == 0) {
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printf("\n %04x:", i);
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}
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#if MICROPY_PY_WIZNET5K == 5200
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uint32_t reg = WIZCHIP_SREG_ADDR(sn, i);
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#else
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uint32_t reg = _W5500_IO_BASE_ | i << 8 | WIZCHIP_SREG_BLOCK(sn) << 3;
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#endif
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printf(" %02x", WIZCHIP_READ(reg));
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}
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}
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printf("\n");
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_regs_obj, wiznet5k_regs);
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STATIC mp_obj_t wiznet5k_isconnected(mp_obj_t self_in) {
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(void)self_in;
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return mp_obj_new_bool(wizphy_getphylink() == PHY_LINK_ON);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_isconnected_obj, wiznet5k_isconnected);
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/// \method ifconfig([(ip, subnet, gateway, dns)])
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/// Get/set IP address, subnet mask, gateway and DNS.
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STATIC mp_obj_t wiznet5k_ifconfig(size_t n_args, const mp_obj_t *args) {
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wiz_NetInfo netinfo;
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ctlnetwork(CN_GET_NETINFO, &netinfo);
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if (n_args == 1) {
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// get
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mp_obj_t tuple[4] = {
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netutils_format_ipv4_addr(netinfo.ip, NETUTILS_BIG),
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netutils_format_ipv4_addr(netinfo.sn, NETUTILS_BIG),
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netutils_format_ipv4_addr(netinfo.gw, NETUTILS_BIG),
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netutils_format_ipv4_addr(netinfo.dns, NETUTILS_BIG),
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};
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return mp_obj_new_tuple(4, tuple);
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} else {
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// set
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mp_obj_t *items;
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mp_obj_get_array_fixed_n(args[1], 4, &items);
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netutils_parse_ipv4_addr(items[0], netinfo.ip, NETUTILS_BIG);
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netutils_parse_ipv4_addr(items[1], netinfo.sn, NETUTILS_BIG);
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netutils_parse_ipv4_addr(items[2], netinfo.gw, NETUTILS_BIG);
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netutils_parse_ipv4_addr(items[3], netinfo.dns, NETUTILS_BIG);
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ctlnetwork(CN_SET_NETINFO, &netinfo);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_ifconfig_obj, 1, 2, wiznet5k_ifconfig);
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STATIC const mp_rom_map_elem_t wiznet5k_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_regs), MP_ROM_PTR(&wiznet5k_regs_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&wiznet5k_ifconfig_obj) },
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{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&wiznet5k_isconnected_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(wiznet5k_locals_dict, wiznet5k_locals_dict_table);
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const mod_network_nic_type_t mod_network_nic_type_wiznet5k = {
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.base = {
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{ &mp_type_type },
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.name = MP_QSTR_WIZNET5K,
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.make_new = wiznet5k_make_new,
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.locals_dict = (mp_obj_dict_t*)&wiznet5k_locals_dict,
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},
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.gethostbyname = wiznet5k_gethostbyname,
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.socket = wiznet5k_socket_socket,
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.close = wiznet5k_socket_close,
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.bind = wiznet5k_socket_bind,
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.listen = wiznet5k_socket_listen,
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.accept = wiznet5k_socket_accept,
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.connect = wiznet5k_socket_connect,
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.send = wiznet5k_socket_send,
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.recv = wiznet5k_socket_recv,
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.sendto = wiznet5k_socket_sendto,
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.recvfrom = wiznet5k_socket_recvfrom,
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.setsockopt = wiznet5k_socket_setsockopt,
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.settimeout = wiznet5k_socket_settimeout,
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.ioctl = wiznet5k_socket_ioctl,
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};
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