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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018-2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include "py/mphal.h"
#include "shared/netutils/netutils.h"
#include "lwip/etharp.h"
#include "lwip/dns.h"
#include "lwip/apps/mdns.h"
#include "drivers/cyw43/cyw43.h"
STATIC void cyw43_ethernet_trace(cyw43_t *self, struct netif *netif, size_t len, const void *data, unsigned int flags) {
bool is_tx = flags & NETUTILS_TRACE_IS_TX;
if ((is_tx && (self->trace_flags & CYW43_TRACE_ETH_TX))
|| (!is_tx && (self->trace_flags & CYW43_TRACE_ETH_RX))) {
const uint8_t *buf;
if (len == (size_t)-1) {
// data is a pbuf
const struct pbuf *pbuf = data;
buf = pbuf->payload;
len = pbuf->len; // restricted to print only the first chunk of the pbuf
} else {
// data is actual data buffer
buf = data;
}
if (self->trace_flags & CYW43_TRACE_MAC) {
printf("[% 8d] ETH%cX itf=%c%c len=%u", (int)mp_hal_ticks_ms(), is_tx ? 'T' : 'R', netif->name[0], netif->name[1], len);
printf(" MAC type=%d subtype=%d data=", buf[0] >> 2 & 3, buf[0] >> 4);
for (size_t i = 0; i < len; ++i) {
printf(" %02x", buf[i]);
}
printf("\n");
return;
}
if (self->trace_flags & CYW43_TRACE_ETH_FULL) {
flags |= NETUTILS_TRACE_PAYLOAD;
}
netutils_ethernet_trace(MP_PYTHON_PRINTER, len, buf, flags);
}
}
STATIC err_t cyw43_netif_output(struct netif *netif, struct pbuf *p) {
cyw43_t *self = netif->state;
if (self->trace_flags != 0) {
cyw43_ethernet_trace(self, netif, (size_t)-1, p, NETUTILS_TRACE_IS_TX | NETUTILS_TRACE_NEWLINE);
}
int itf = netif->name[1] - '0';
int ret = cyw43_send_ethernet(self, itf, p->tot_len, (void*)p, true);
if (ret) {
printf("[CYW43] send_ethernet failed: %d\n", ret);
return ERR_IF;
}
return ERR_OK;
}
STATIC err_t cyw43_netif_init(struct netif *netif) {
netif->linkoutput = cyw43_netif_output;
netif->output = etharp_output;
netif->mtu = 1500;
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
cyw43_wifi_get_mac(netif->state, netif->name[1] - '0', netif->hwaddr);
netif->hwaddr_len = sizeof(netif->hwaddr);
return ERR_OK;
}
void cyw43_tcpip_init(cyw43_t *self, int itf) {
ip_addr_t ipconfig[4];
#if LWIP_IPV6
#define IP(x) ((x).u_addr.ip4)
#else
#define IP(x) (x)
#endif
if (itf == 0) {
// need to zero out to get isconnected() working
IP4_ADDR(&IP(ipconfig[0]), 0, 0, 0, 0);
IP4_ADDR(&IP(ipconfig[2]), 192, 168, 0, 1);
} else {
IP4_ADDR(&IP(ipconfig[0]), 192, 168, 4, 1);
IP4_ADDR(&IP(ipconfig[2]), 192, 168, 4, 1);
}
IP4_ADDR(&IP(ipconfig[1]), 255, 255, 255, 0);
IP4_ADDR(&IP(ipconfig[3]), 8, 8, 8, 8);
#undef IP
struct netif *n = &self->netif[itf];
n->name[0] = 'w';
n->name[1] = '0' + itf;
#if LWIP_IPV6
netif_add(n, &ipconfig[0].u_addr.ip4, &ipconfig[1].u_addr.ip4, &ipconfig[2].u_addr.ip4, self, cyw43_netif_init, ethernet_input);
#else
netif_add(n, &ipconfig[0], &ipconfig[1], &ipconfig[2], self, cyw43_netif_init, netif_input);
#endif
netif_set_hostname(n, "PYBD");
netif_set_default(n);
netif_set_up(n);
if (itf == CYW43_ITF_STA) {
dns_setserver(0, &ipconfig[3]);
dhcp_set_struct(n, &self->dhcp_client);
dhcp_start(n);
} else {
dhcp_server_init(&self->dhcp_server, &ipconfig[0], &ipconfig[1]);
}
#if LWIP_MDNS_RESPONDER
// TODO better to call after IP address is set
char mdns_hostname[9];
memcpy(&mdns_hostname[0], "PYBD", 4);
mp_hal_get_mac_ascii(MP_HAL_MAC_WLAN0, 8, 4, &mdns_hostname[4]);
mdns_hostname[8] = '\0';
mdns_resp_add_netif(n, mdns_hostname, 60);
#endif
}
void cyw43_tcpip_deinit(cyw43_t *self, int itf) {
struct netif *n = &self->netif[itf];
if (itf == CYW43_ITF_STA) {
dhcp_stop(n);
} else {
dhcp_server_deinit(&self->dhcp_server);
}
#if LWIP_MDNS_RESPONDER
mdns_resp_remove_netif(n);
#endif
for (struct netif *netif = netif_list; netif != NULL; netif = netif->next) {
if (netif == n) {
netif_remove(netif);
netif->ip_addr.addr = 0;
netif->flags = 0;
}
}
}
void cyw43_cb_process_ethernet(void *cb_data, int itf, size_t len, const uint8_t *buf) {
cyw43_t *self = cb_data;
struct netif *netif = &self->netif[itf];
if (self->trace_flags) {
cyw43_ethernet_trace(self, netif, len, buf, NETUTILS_TRACE_NEWLINE);
}
if (netif->flags & NETIF_FLAG_LINK_UP) {
struct pbuf *p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, buf, len);
if (netif->input(p, netif) != ERR_OK) {
pbuf_free(p);
}
}
}
}
void cyw43_tcpip_set_link_up(cyw43_t *self, int itf) {
netif_set_link_up(&self->netif[itf]);
}
void cyw43_tcpip_set_link_down(cyw43_t *self, int itf) {
netif_set_link_down(&self->netif[itf]);
}
int cyw43_tcpip_link_status(cyw43_t *self, int itf) {
struct netif *netif = &self->netif[itf];
if ((netif->flags & (NETIF_FLAG_UP | NETIF_FLAG_LINK_UP))
== (NETIF_FLAG_UP | NETIF_FLAG_LINK_UP)) {
if (netif->ip_addr.addr != 0) {
return CYW43_LINK_UP;
} else {
return CYW43_LINK_NOIP;
}
} else {
return cyw43_wifi_link_status(self, itf);
}
}
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