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micropython/extmod/network_wiznet5k.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 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 <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "py/runtime.h"
#include "py/stream.h"
#include "py/mperrno.h"
#include "py/mphal.h"
#if MICROPY_PY_NETWORK_WIZNET5K
#include "shared/netutils/netutils.h"
#include "extmod/modnetwork.h"
#include "extmod/modmachine.h"
#include "extmod/virtpin.h"
#include "modmachine.h"
#include "drivers/bus/spi.h"
#include "lib/wiznet5k/Ethernet/wizchip_conf.h"
// The WIZNET5K module supports two usage modes:
// * Raw ethernet transport with LwIP integrated in micropython
// * Provided TCP Stack on controller presented as modnetwork / socket interface
#define WIZNET5K_WITH_LWIP_STACK (MICROPY_PY_LWIP)
#define WIZNET5K_PROVIDED_STACK (!MICROPY_PY_LWIP)
#if WIZNET5K_WITH_LWIP_STACK
// Uses LwIP for TCP Stack with Wiznet in MACRAW mode
#include "shared/netutils/netutils.h"
#include "lib/wiznet5k/Ethernet/wizchip_conf.h"
#include "lib/wiznet5k/Ethernet/socket.h"
#include "lwip/err.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
#include "netif/etharp.h"
#define TRACE_ETH_TX (0x0002)
#define TRACE_ETH_RX (0x0004)
#else // WIZNET5K_PROVIDED_STACK
// Uses TCP Stack provided in Wiznet controller
// TODO: Not all micropython modnetwork / socket features are provided
#include "lib/wiznet5k/Ethernet/socket.h"
#include "lib/wiznet5k/Internet/DNS/dns.h"
#include "lib/wiznet5k/Internet/DHCP/dhcp.h"
#endif
#ifndef printf
#define printf(...) mp_printf(MP_PYTHON_PRINTER, __VA_ARGS__)
#endif
#ifndef MICROPY_HW_WIZNET_SPI_BAUDRATE
#define MICROPY_HW_WIZNET_SPI_BAUDRATE (2000000)
#endif
#ifndef WIZCHIP_SREG_ADDR
#if (_WIZCHIP_ == 5500)
#define WIZCHIP_SREG_ADDR(sn, addr) (_W5500_IO_BASE_ + (addr << 8) + (WIZCHIP_SREG_BLOCK(sn) << 3))
#else
#define WIZCHIP_SREG_ADDR(sn, addr) (_WIZCHIP_IO_BASE_ + WIZCHIP_SREG_BLOCK(sn) + (addr))
#endif
#endif
typedef struct _wiznet5k_obj_t {
mp_obj_base_t base;
mp_uint_t cris_state;
mp_obj_base_t *spi;
void (*spi_transfer)(mp_obj_base_t *obj, size_t len, const uint8_t *src, uint8_t *dest);
mp_hal_pin_obj_t cs;
mp_hal_pin_obj_t rst;
#if WIZNET5K_WITH_LWIP_STACK
mp_hal_pin_obj_t pin_intn;
bool use_interrupt;
uint8_t eth_frame[1514];
uint32_t trace_flags;
struct netif netif;
struct dhcp dhcp_struct;
#else // WIZNET5K_PROVIDED_STACK
wiz_NetInfo netinfo;
uint8_t socket_used;
bool active;
#endif
} wiznet5k_obj_t;
#if WIZNET5K_WITH_LWIP_STACK
#define IS_ACTIVE(self) (self->netif.flags & NETIF_FLAG_UP)
#else // WIZNET5K_PROVIDED_STACK
#define IS_ACTIVE(self) (self->active)
#endif
// Global object holding the Wiznet5k state
STATIC wiznet5k_obj_t wiznet5k_obj;
STATIC void wiz_cris_enter(void) {
wiznet5k_obj.cris_state = MICROPY_BEGIN_ATOMIC_SECTION();
}
STATIC void wiz_cris_exit(void) {
MICROPY_END_ATOMIC_SECTION(wiznet5k_obj.cris_state);
}
STATIC void wiz_cs_select(void) {
mp_hal_pin_low(wiznet5k_obj.cs);
}
STATIC void wiz_cs_deselect(void) {
mp_hal_pin_high(wiznet5k_obj.cs);
}
void mpy_wiznet_yield(void) {
// Used in socket.c via -DWIZCHIP_YIELD=mpy_wiznet_yield in make/cmake
#if MICROPY_PY_THREAD
MICROPY_THREAD_YIELD();
#else
mp_handle_pending(true);
#endif
}
STATIC void wiz_spi_read(uint8_t *buf, uint16_t len) {
wiznet5k_obj.spi_transfer(wiznet5k_obj.spi, len, buf, buf);
}
STATIC void wiz_spi_write(const uint8_t *buf, uint16_t len) {
wiznet5k_obj.spi_transfer(wiznet5k_obj.spi, len, buf, NULL);
}
STATIC uint8_t wiz_spi_readbyte() {
uint8_t buf = 0;
wiznet5k_obj.spi_transfer(wiznet5k_obj.spi, 1, &buf, &buf);
return buf;
}
STATIC void wiz_spi_writebyte(const uint8_t buf) {
wiznet5k_obj.spi_transfer(wiznet5k_obj.spi, 1, &buf, NULL);
}
STATIC void wiznet5k_get_mac_address(wiznet5k_obj_t *self, uint8_t mac[6]) {
(void)self;
getSHAR(mac);
}
#if WIZNET5K_WITH_LWIP_STACK
void wiznet5k_try_poll(void);
STATIC void wiznet5k_lwip_init(wiznet5k_obj_t *self);
STATIC mp_obj_t mpy_wiznet_read_int(mp_obj_t none_in) {
(void)none_in;
// Handle incoming data, unless the SPI bus is busy
if (mp_hal_pin_read(wiznet5k_obj.cs)) {
wiznet5k_try_poll();
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mpy_wiznet_read_int_obj, mpy_wiznet_read_int);
STATIC void wiznet5k_config_interrupt(bool enabled) {
if (!wiznet5k_obj.use_interrupt) {
return;
}
mp_hal_pin_interrupt(
wiznet5k_obj.pin_intn,
MP_OBJ_FROM_PTR(&mpy_wiznet_read_int_obj),
(enabled)? MP_HAL_PIN_TRIGGER_FALL : MP_HAL_PIN_TRIGGER_NONE,
true
);
}
void wiznet5k_deinit(void) {
for (struct netif *netif = netif_list; netif != NULL; netif = netif->next) {
if (netif == &wiznet5k_obj.netif) {
netif_remove(netif);
netif->flags = 0;
break;
}
}
}
STATIC void wiznet5k_init(void) {
// Configure wiznet for raw ethernet frame usage.
// Configure 16k buffers for fast MACRAW
uint8_t sn_size[16] = {16, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0};
ctlwizchip(CW_INIT_WIZCHIP, sn_size);
if (wiznet5k_obj.use_interrupt) {
// Enable Wiznet interrupts for socket 0
wizchip_setinterruptmask(IK_SOCK_0);
// Enable data receive interrupt
setSn_IMR(0, Sn_IR_RECV);
#if _WIZCHIP_ == W5100S
// Enable interrupt pin
setMR(MR2_G_IEN);
#endif
mp_hal_pin_input(wiznet5k_obj.pin_intn);
wiznet5k_config_interrupt(true);
}
// Deinit before a new init to clear the state from a previous activation
wiznet5k_deinit();
// Hook the Wiznet into lwIP
wiznet5k_lwip_init(&wiznet5k_obj);
netif_set_link_up(&wiznet5k_obj.netif);
netif_set_up(&wiznet5k_obj.netif);
// register with network module
mod_network_register_nic(&wiznet5k_obj);
}
STATIC void wiznet5k_send_ethernet(wiznet5k_obj_t *self, size_t len, const uint8_t *buf) {
uint8_t ip[4] = {1, 1, 1, 1}; // dummy
int ret = WIZCHIP_EXPORT(sendto)(0, (byte *)buf, len, ip, 11); // dummy port
if (ret != len) {
printf("wiznet5k_send_ethernet: fatal error %d\n", ret);
netif_set_link_down(&self->netif);
netif_set_down(&self->netif);
}
}
// Stores the frame in self->eth_frame and returns number of bytes in the frame, 0 for no frame
STATIC uint16_t wiznet5k_recv_ethernet(wiznet5k_obj_t *self) {
uint16_t len = getSn_RX_RSR(0);
if (len == 0) {
return 0;
}
byte ip[4];
uint16_t port;
int ret = WIZCHIP_EXPORT(recvfrom)(0, self->eth_frame, 1514, ip, &port);
if (ret <= 0) {
printf("wiznet5k_recv_ethernet: fatal error len=%u ret=%d\n", len, ret);
netif_set_link_down(&self->netif);
netif_set_down(&self->netif);
return 0;
}
return ret;
}
/*******************************************************************************/
// Wiznet5k lwIP interface
STATIC err_t wiznet5k_netif_output(struct netif *netif, struct pbuf *p) {
wiznet5k_obj_t *self = netif->state;
pbuf_copy_partial(p, self->eth_frame, p->tot_len, 0);
if (self->trace_flags & TRACE_ETH_TX) {
netutils_ethernet_trace(MP_PYTHON_PRINTER, p->tot_len, self->eth_frame, NETUTILS_TRACE_IS_TX | NETUTILS_TRACE_NEWLINE);
}
wiznet5k_send_ethernet(self, p->tot_len, self->eth_frame);
return ERR_OK;
}
STATIC err_t wiznet5k_netif_init(struct netif *netif) {
netif->linkoutput = wiznet5k_netif_output;
netif->output = etharp_output;
netif->mtu = 1500;
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
wiznet5k_get_mac_address(netif->state, netif->hwaddr);
netif->hwaddr_len = sizeof(netif->hwaddr);
int ret = WIZCHIP_EXPORT(socket)(0, Sn_MR_MACRAW, 0, 0);
if (ret != 0) {
printf("WIZNET fatal error in netifinit: %d\n", ret);
return ERR_IF;
}
// Enable MAC filtering so we only get frames destined for us, to reduce load on lwIP
setSn_MR(0, getSn_MR(0) | Sn_MR_MFEN);
return ERR_OK;
}
STATIC void wiznet5k_lwip_init(wiznet5k_obj_t *self) {
ip_addr_t ipconfig[4];
ipconfig[0].addr = 0;
ipconfig[1].addr = 0;
ipconfig[2].addr = 0;
ipconfig[3].addr = 0;
netif_add(&self->netif, &ipconfig[0], &ipconfig[1], &ipconfig[2], self, wiznet5k_netif_init, ethernet_input);
self->netif.name[0] = 'e';
self->netif.name[1] = '0';
netif_set_default(&self->netif);
dns_setserver(0, &ipconfig[3]);
dhcp_set_struct(&self->netif, &self->dhcp_struct);
// Setting NETIF_FLAG_UP then clearing it is a workaround for dhcp_start and the
// LWIP_DHCP_CHECK_LINK_UP option, so that the DHCP client schedules itself to
// automatically start when the interface later goes up.
self->netif.flags |= NETIF_FLAG_UP;
dhcp_start(&self->netif);
self->netif.flags &= ~NETIF_FLAG_UP;
}
void wiznet5k_poll(void) {
wiznet5k_obj_t *self = &wiznet5k_obj;
if ((self->netif.flags & (NETIF_FLAG_UP | NETIF_FLAG_LINK_UP)) == (NETIF_FLAG_UP | NETIF_FLAG_LINK_UP)) {
uint16_t len;
while ((len = wiznet5k_recv_ethernet(self)) > 0) {
if (self->trace_flags & TRACE_ETH_RX) {
netutils_ethernet_trace(MP_PYTHON_PRINTER, len, self->eth_frame, NETUTILS_TRACE_NEWLINE);
}
struct pbuf *p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
if (p != NULL) {
pbuf_take(p, self->eth_frame, len);
if (self->netif.input(p, &self->netif) != ERR_OK) {
pbuf_free(p);
}
}
}
}
wizchip_clrinterrupt(IK_SOCK_0);
#if _WIZCHIP_ == W5100S
setSn_IR(0, Sn_IR_RECV); // W5100S driver bug: must write to the Sn_IR register to reset the IRQ signal
#endif
}
#endif // MICROPY_PY_LWIP
#if WIZNET5K_PROVIDED_STACK
STATIC void wiz_dhcp_assign(void) {
getIPfromDHCP(wiznet5k_obj.netinfo.ip);
getGWfromDHCP(wiznet5k_obj.netinfo.gw);
getSNfromDHCP(wiznet5k_obj.netinfo.sn);
getDNSfromDHCP(wiznet5k_obj.netinfo.dns);
ctlnetwork(CN_SET_NETINFO, (void *)&wiznet5k_obj.netinfo);
}
STATIC void wiz_dhcp_update(void) {
;
}
STATIC void wiz_dhcp_conflict(void) {
;
}
STATIC void wiznet5k_init(void) {
// Configure wiznet provided TCP / socket interface
reg_dhcp_cbfunc(wiz_dhcp_assign, wiz_dhcp_update, wiz_dhcp_conflict);
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
ctlwizchip(CW_INIT_WIZCHIP, sn_size);
ctlnetwork(CN_SET_NETINFO, (void *)&wiznet5k_obj.netinfo);
// set some sensible default values; they are configurable using ifconfig method
wiz_NetInfo netinfo = {
.mac = {0, 0, 0, 0, 0, 0},
.ip = {192, 168, 0, 18},
.sn = {255, 255, 255, 0},
.gw = {192, 168, 0, 1},
.dns = {8, 8, 8, 8}, // Google public DNS
.dhcp = NETINFO_STATIC,
};
wiznet5k_obj.netinfo = netinfo;
// register with network module
mod_network_register_nic(&wiznet5k_obj);
wiznet5k_obj.active = true;
}
STATIC int wiznet5k_gethostbyname(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *out_ip) {
uint8_t dns_ip[MOD_NETWORK_IPADDR_BUF_SIZE] = {8, 8, 8, 8};
uint8_t *buf = m_new(uint8_t, MAX_DNS_BUF_SIZE);
DNS_init(2, buf);
if (wiznet5k_obj.netinfo.dns[0]) {
memcpy(dns_ip, wiznet5k_obj.netinfo.dns, MOD_NETWORK_IPADDR_BUF_SIZE);
}
mp_int_t ret = DNS_run(dns_ip, (uint8_t *)name, out_ip);
m_del(uint8_t, buf, MAX_DNS_BUF_SIZE);
if (ret == 1) {
// success
return 0;
} else {
// failure
return -2;
}
}
STATIC int wiznet5k_socket_socket(mod_network_socket_obj_t *socket, int *_errno) {
if (socket->domain != MOD_NETWORK_AF_INET) {
*_errno = MP_EAFNOSUPPORT;
return -1;
}
switch (socket->type) {
case MOD_NETWORK_SOCK_STREAM:
socket->type = Sn_MR_TCP;
break;
case MOD_NETWORK_SOCK_DGRAM:
socket->type = Sn_MR_UDP;
break;
default:
*_errno = MP_EINVAL;
return -1;
}
if (socket->fileno == -1) {
// get first unused socket number
for (mp_uint_t sn = 0; sn < _WIZCHIP_SOCK_NUM_; sn++) {
if ((wiznet5k_obj.socket_used & (1 << sn)) == 0) {
wiznet5k_obj.socket_used |= (1 << sn);
socket->fileno = sn;
break;
}
}
if (socket->fileno == -1) {
// too many open sockets
*_errno = MP_EMFILE;
return -1;
}
}
// WIZNET does not have a concept of pure "open socket". You need to know
// if it's a server or client at the time of creation of the socket.
// So, we defer the open until we know what kind of socket we want.
// use "domain" to indicate that this socket has not yet been opened
socket->domain = 0;
return 0;
}
STATIC void wiznet5k_socket_close(mod_network_socket_obj_t *socket) {
uint8_t sn = (uint8_t)socket->fileno;
if (sn < _WIZCHIP_SOCK_NUM_) {
wiznet5k_obj.socket_used &= ~(1 << sn);
WIZCHIP_EXPORT(close)(sn);
}
}
STATIC int wiznet5k_socket_bind(mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno) {
// open the socket in server mode (if port != 0)
mp_int_t ret = WIZCHIP_EXPORT(socket)(socket->fileno, socket->type, port, 0);
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
// indicate that this socket has been opened
socket->domain = 1;
// success
return 0;
}
STATIC int wiznet5k_socket_listen(mod_network_socket_obj_t *socket, mp_int_t backlog, int *_errno) {
mp_int_t ret = WIZCHIP_EXPORT(listen)(socket->fileno);
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
return 0;
}
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) {
for (;;) {
int sr = getSn_SR((uint8_t)socket->fileno);
if (sr == SOCK_ESTABLISHED) {
socket2->domain = socket->domain;
socket2->type = socket->type;
socket2->fileno = socket->fileno;
getSn_DIPR((uint8_t)socket2->fileno, ip);
*port = getSn_PORT(socket2->fileno);
// WIZnet turns the listening socket into the client socket, so we
// need to re-bind and re-listen on another socket for the server.
// TODO handle errors, especially no-more-sockets error
socket->domain = MOD_NETWORK_AF_INET;
socket->fileno = -1;
int _errno2;
if (wiznet5k_socket_socket(socket, &_errno2) != 0) {
// printf("(bad resocket %d)\n", _errno2);
} else if (wiznet5k_socket_bind(socket, NULL, *port, &_errno2) != 0) {
// printf("(bad rebind %d)\n", _errno2);
} else if (wiznet5k_socket_listen(socket, 0, &_errno2) != 0) {
// printf("(bad relisten %d)\n", _errno2);
}
return 0;
}
if (sr == SOCK_CLOSED || sr == SOCK_CLOSE_WAIT) {
wiznet5k_socket_close(socket);
*_errno = MP_ENOTCONN; // ??
return -1;
}
mp_hal_delay_ms(1);
}
}
STATIC int wiznet5k_socket_connect(mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno) {
// use "bind" function to open the socket in client mode
if (wiznet5k_socket_bind(socket, ip, 0, _errno) != 0) {
return -1;
}
// now connect
MP_THREAD_GIL_EXIT();
mp_int_t ret = WIZCHIP_EXPORT(connect)(socket->fileno, ip, port);
MP_THREAD_GIL_ENTER();
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
// success
return 0;
}
STATIC mp_uint_t wiznet5k_socket_send(mod_network_socket_obj_t *socket, const byte *buf, mp_uint_t len, int *_errno) {
MP_THREAD_GIL_EXIT();
mp_int_t ret = WIZCHIP_EXPORT(send)(socket->fileno, (byte *)buf, len);
MP_THREAD_GIL_ENTER();
// TODO convert Wiz errno's to POSIX ones
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
return ret;
}
STATIC mp_uint_t wiznet5k_socket_recv(mod_network_socket_obj_t *socket, byte *buf, mp_uint_t len, int *_errno) {
MP_THREAD_GIL_EXIT();
mp_int_t ret = WIZCHIP_EXPORT(recv)(socket->fileno, buf, len);
MP_THREAD_GIL_ENTER();
// TODO convert Wiz errno's to POSIX ones
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
return ret;
}
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) {
if (socket->domain == 0) {
// socket not opened; use "bind" function to open the socket in client mode
if (wiznet5k_socket_bind(socket, ip, 0, _errno) != 0) {
return -1;
}
}
MP_THREAD_GIL_EXIT();
mp_int_t ret = WIZCHIP_EXPORT(sendto)(socket->fileno, (byte *)buf, len, ip, port);
MP_THREAD_GIL_ENTER();
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
return ret;
}
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) {
uint16_t port2;
MP_THREAD_GIL_EXIT();
mp_int_t ret = WIZCHIP_EXPORT(recvfrom)(socket->fileno, buf, len, ip, &port2);
MP_THREAD_GIL_ENTER();
*port = port2;
if (ret < 0) {
wiznet5k_socket_close(socket);
*_errno = -ret;
return -1;
}
return ret;
}
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) {
// TODO
*_errno = MP_EINVAL;
return -1;
}
STATIC int wiznet5k_socket_settimeout(mod_network_socket_obj_t *socket, mp_uint_t timeout_ms, int *_errno) {
// TODO
*_errno = MP_EINVAL;
return -1;
/*
if (timeout_ms == 0) {
// set non-blocking mode
uint8_t arg = SOCK_IO_NONBLOCK;
WIZCHIP_EXPORT(ctlsocket)(socket->fileno, CS_SET_IOMODE, &arg);
}
*/
}
STATIC int wiznet5k_socket_ioctl(mod_network_socket_obj_t *socket, mp_uint_t request, mp_uint_t arg, int *_errno) {
if (request == MP_STREAM_POLL) {
int ret = 0;
if (arg & MP_STREAM_POLL_RD && getSn_RX_RSR(socket->fileno) != 0) {
ret |= MP_STREAM_POLL_RD;
}
if (arg & MP_STREAM_POLL_WR && getSn_TX_FSR(socket->fileno) != 0) {
ret |= MP_STREAM_POLL_WR;
}
return ret;
} else {
*_errno = MP_EINVAL;
return MP_STREAM_ERROR;
}
}
STATIC void wiznet5k_dhcp_init(wiznet5k_obj_t *self) {
uint8_t test_buf[2048];
uint8_t ret = 0;
uint8_t dhcp_retry = 0;
while (ret != DHCP_IP_LEASED) {
mp_uint_t timeout = mp_hal_ticks_ms() + 3000;
DHCP_init(1, test_buf);
while (1) {
ret = DHCP_run();
if (ret == DHCP_IP_LEASED) {
break;
} else if (ret == DHCP_FAILED || mp_hal_ticks_ms() > timeout) {
dhcp_retry++;
break;
}
mpy_wiznet_yield();
}
if (dhcp_retry > 3) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("timeout waiting for DHCP to get IP address"));
break;
}
}
if (ret == DHCP_IP_LEASED) {
ctlnetwork(CN_GET_NETINFO, &self->netinfo);
}
}
#endif // WIZNET5K_PROVIDED_STACK
/*******************************************************************************/
// MicroPython bindings
// WIZNET5K(spi, pin_cs, pin_rst[, pin_intn])
// Create and return a WIZNET5K object.
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) {
mp_obj_base_t *spi;
mp_hal_pin_obj_t cs;
mp_hal_pin_obj_t rst;
#if WIZNET5K_WITH_LWIP_STACK
mp_hal_pin_obj_t pin_intn = (mp_hal_pin_obj_t)NULL;
bool use_interrupt = false;
// Bring down interface while configuring
wiznet5k_obj.netif.flags = 0;
#endif
#ifdef MICROPY_HW_WIZNET_SPI_ID
// Allow auto-configuration of SPI if defined for board and no args passed
if (n_args == 0 && n_kw == 0) {
// Initialize SPI.
mp_obj_t spi_obj = MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_SPI_SCK);
mp_obj_t miso_obj = MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_SPI_MISO);
mp_obj_t mosi_obj = MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_SPI_MOSI);
mp_obj_t args[] = {
MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_SPI_ID),
MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_SPI_BAUDRATE),
MP_ROM_QSTR(MP_QSTR_sck), mp_pin_make_new(NULL, 1, 0, &spi_obj),
MP_ROM_QSTR(MP_QSTR_miso), mp_pin_make_new(NULL, 1, 0, &miso_obj),
MP_ROM_QSTR(MP_QSTR_mosi), mp_pin_make_new(NULL, 1, 0, &mosi_obj),
};
spi = MP_OBJ_TO_PTR(MP_OBJ_TYPE_GET_SLOT(&machine_spi_type, make_new)((mp_obj_t)&machine_spi_type, 2, 3, args));
cs = mp_hal_get_pin_obj(mp_pin_make_new(NULL, 1, 0, (mp_obj_t[]) {MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_PIN_CS)}));
rst = mp_hal_get_pin_obj(mp_pin_make_new(NULL, 1, 0, (mp_obj_t[]) {MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_PIN_RST)}));
#if WIZNET5K_WITH_LWIP_STACK && defined(MICROPY_HW_WIZNET_PIN_INTN)
pin_intn = mp_hal_get_pin_obj(mp_pin_make_new(NULL, 1, 0, (mp_obj_t[]) {MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIZNET_PIN_INTN)}));
use_interrupt = true;
#endif
} else
#endif
{
// If passing in args, must supply spi, pin_cs, pin_rst and optionally pin_intn
#if WIZNET5K_WITH_LWIP_STACK
mp_arg_check_num(n_args, n_kw, 3, 4, false);
#else
mp_arg_check_num(n_args, n_kw, 3, 3, false);
#endif
spi = mp_hal_get_spi_obj(args[0]);
cs = mp_hal_get_pin_obj(args[1]);
rst = mp_hal_get_pin_obj(args[2]);
#if WIZNET5K_WITH_LWIP_STACK
if (n_args > 3) {
pin_intn = mp_hal_get_pin_obj(args[3]);
use_interrupt = true;
}
#endif
}
mp_hal_pin_output(cs);
mp_hal_pin_output(rst);
// Init the wiznet5k object
wiznet5k_obj.base.type = (mp_obj_type_t *)&mod_network_nic_type_wiznet5k;
wiznet5k_obj.cris_state = 0;
wiznet5k_obj.spi = spi;
wiznet5k_obj.spi_transfer = ((mp_machine_spi_p_t *)MP_OBJ_TYPE_GET_SLOT(spi->type, protocol))->transfer;
wiznet5k_obj.cs = cs;
wiznet5k_obj.rst = rst;
#if WIZNET5K_WITH_LWIP_STACK
wiznet5k_obj.pin_intn = pin_intn;
wiznet5k_obj.use_interrupt = use_interrupt;
wiznet5k_obj.trace_flags = 0;
#else // WIZNET5K_PROVIDED_STACK
wiznet5k_obj.active = false;
wiznet5k_obj.socket_used = 0;
#endif
// Return wiznet5k object
return MP_OBJ_FROM_PTR(&wiznet5k_obj);
}
// regs()
// Dump WIZNET5K registers.
STATIC mp_obj_t wiznet5k_regs(mp_obj_t self_in) {
(void)self_in;
printf("Wiz CREG:");
for (int i = 0; i < 0x50; ++i) {
if (i % 16 == 0) {
printf("\n %04x:", i);
}
#if _WIZCHIP_ == 5500
uint32_t reg = _W5500_IO_BASE_ | i << 8;
#else
uint32_t reg = i;
#endif
printf(" %02x", WIZCHIP_READ(reg));
}
for (int sn = 0; sn < 4; ++sn) {
printf("\nWiz SREG[%d]:", sn);
for (int i = 0; i < 0x30; ++i) {
if (i % 16 == 0) {
printf("\n %04x:", i);
}
#if _WIZCHIP_ == 5500
uint32_t reg = _W5500_IO_BASE_ | i << 8 | WIZCHIP_SREG_BLOCK(sn) << 3;
#else
uint32_t reg = WIZCHIP_SREG_ADDR(sn, i);
#endif
printf(" %02x", WIZCHIP_READ(reg));
}
}
printf("\n");
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_regs_obj, wiznet5k_regs);
STATIC mp_obj_t wiznet5k_isconnected(mp_obj_t self_in) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(
wizphy_getphylink() == PHY_LINK_ON
&& IS_ACTIVE(self)
#if WIZNET5K_WITH_LWIP_STACK
&& self->netif.ip_addr.addr != 0
#endif
);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_isconnected_obj, wiznet5k_isconnected);
STATIC mp_obj_t wiznet5k_active(size_t n_args, const mp_obj_t *args) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (n_args == 1) {
return mp_obj_new_bool(IS_ACTIVE(self));
} else {
if (mp_obj_is_true(args[1])) {
if (!IS_ACTIVE(self)) {
/*!< Wiznet initialisation */
// Reset the chip
mp_hal_pin_low(wiznet5k_obj.rst);
mp_hal_delay_ms(1); // datasheet says 2us
mp_hal_pin_high(wiznet5k_obj.rst);
mp_hal_delay_ms(160); // datasheet says 150ms
// Set physical interface callbacks
reg_wizchip_cris_cbfunc(wiz_cris_enter, wiz_cris_exit);
reg_wizchip_cs_cbfunc(wiz_cs_select, wiz_cs_deselect);
reg_wizchip_spi_cbfunc(wiz_spi_readbyte, wiz_spi_writebyte);
reg_wizchip_spiburst_cbfunc(wiz_spi_read, wiz_spi_write);
// Configure lwip/provided specific settings
wiznet5k_init();
// If the device doesn't have a MAC address then set one
#if WIZNET5K_WITH_LWIP_STACK
uint8_t *mac = self->netif.hwaddr;
#else // WIZNET5K_PROVIDED_STACK
uint8_t *mac = wiznet5k_obj.netinfo.mac;
#endif
getSHAR(mac);
if ((mac[0] | mac[1] | mac[2] | mac[3] | mac[4] | mac[5]) == 0) {
mp_hal_get_mac(MP_HAL_MAC_ETH0, mac);
setSHAR(mac);
}
// seems we need a small delay after init
mp_hal_delay_ms(250);
}
} else {
#if WIZNET5K_WITH_LWIP_STACK
netif_set_down(&self->netif);
netif_set_link_down(&self->netif);
wiznet5k_deinit();
#else // WIZNET5K_PROVIDED_STACK
self->active = false;
wizchip_sw_reset();
#endif
}
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_active_obj, 1, 2, wiznet5k_active);
#if WIZNET5K_PROVIDED_STACK
// ifconfig([(ip, subnet, gateway, dns)])
// Get/set IP address, subnet mask, gateway and DNS.
STATIC mp_obj_t wiznet5k_ifconfig(size_t n_args, const mp_obj_t *args) {
wiz_NetInfo netinfo;
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]);
ctlnetwork(CN_GET_NETINFO, &netinfo);
if (n_args == 1) {
// Get IP addresses
mp_obj_t tuple[4] = {
netutils_format_ipv4_addr(netinfo.ip, NETUTILS_BIG),
netutils_format_ipv4_addr(netinfo.sn, NETUTILS_BIG),
netutils_format_ipv4_addr(netinfo.gw, NETUTILS_BIG),
netutils_format_ipv4_addr(netinfo.dns, NETUTILS_BIG),
};
return mp_obj_new_tuple(4, tuple);
} else if (args[1] == MP_OBJ_NEW_QSTR(MP_QSTR_dhcp)) {
// Start the DHCP client
self->netinfo.dhcp = NETINFO_DHCP;
wiznet5k_dhcp_init((void *)self);
mp_obj_t tuple[4] = {
netutils_format_ipv4_addr(self->netinfo.ip, NETUTILS_BIG),
netutils_format_ipv4_addr(self->netinfo.sn, NETUTILS_BIG),
netutils_format_ipv4_addr(self->netinfo.gw, NETUTILS_BIG),
netutils_format_ipv4_addr(self->netinfo.dns, NETUTILS_BIG),
};
return mp_obj_new_tuple(4, tuple);
} else {
// Set static IP addresses
self->netinfo.dhcp = NETINFO_STATIC;
mp_obj_t *items;
mp_obj_get_array_fixed_n(args[1], 4, &items);
netutils_parse_ipv4_addr(items[0], netinfo.ip, NETUTILS_BIG);
netutils_parse_ipv4_addr(items[1], netinfo.sn, NETUTILS_BIG);
netutils_parse_ipv4_addr(items[2], netinfo.gw, NETUTILS_BIG);
netutils_parse_ipv4_addr(items[3], netinfo.dns, NETUTILS_BIG);
ctlnetwork(CN_SET_NETINFO, &netinfo);
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_ifconfig_obj, 1, 2, wiznet5k_ifconfig);
#endif // WIZNET5K_PROVIDED_STACK
#if WIZNET5K_WITH_LWIP_STACK
STATIC mp_obj_t wiznet5k_ifconfig(size_t n_args, const mp_obj_t *args) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]);
return mod_network_nic_ifconfig(&self->netif, n_args - 1, args + 1);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_ifconfig_obj, 1, 2, wiznet5k_ifconfig);
STATIC mp_obj_t send_ethernet_wrapper(mp_obj_t self_in, mp_obj_t buf_in) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t buf;
mp_get_buffer_raise(buf_in, &buf, MP_BUFFER_READ);
wiznet5k_send_ethernet(self, buf.len, buf.buf);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(send_ethernet_obj, send_ethernet_wrapper);
#endif // MICROPY_PY_LWIP
STATIC mp_obj_t wiznet5k_status(size_t n_args, const mp_obj_t *args) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]);
(void)self;
if (n_args == 1) {
// No arguments: return link status
if (wizphy_getphylink() == PHY_LINK_ON) {
if (IS_ACTIVE(self)) {
return MP_OBJ_NEW_SMALL_INT(2);
} else {
return MP_OBJ_NEW_SMALL_INT(1);
}
} else {
return MP_OBJ_NEW_SMALL_INT(0);
}
}
mp_raise_ValueError(MP_ERROR_TEXT("unknown status param"));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_status_obj, 1, 2, wiznet5k_status);
STATIC mp_obj_t wiznet5k_config(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (kwargs->used == 0) {
// Get config value
if (n_args != 2) {
mp_raise_TypeError(MP_ERROR_TEXT("must query one param"));
}
switch (mp_obj_str_get_qstr(args[1])) {
case MP_QSTR_mac: {
uint8_t buf[6];
wiznet5k_get_mac_address(self, buf);
return mp_obj_new_bytes(buf, 6);
}
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
} else {
// Set config value(s)
if (n_args != 1) {
mp_raise_TypeError(MP_ERROR_TEXT("can't specify pos and kw args"));
}
for (size_t i = 0; i < kwargs->alloc; ++i) {
if (MP_MAP_SLOT_IS_FILLED(kwargs, i)) {
mp_map_elem_t *e = &kwargs->table[i];
switch (mp_obj_str_get_qstr(e->key)) {
case MP_QSTR_mac: {
mp_buffer_info_t buf;
mp_get_buffer_raise(e->value, &buf, MP_BUFFER_READ);
if (buf.len != 6) {
mp_raise_ValueError(NULL);
}
setSHAR(buf.buf);
#if WIZNET5K_WITH_LWIP_STACK
memcpy(self->netif.hwaddr, buf.buf, 6);
#endif
break;
}
#if WIZNET5K_WITH_LWIP_STACK
case MP_QSTR_trace: {
self->trace_flags = mp_obj_get_int(e->value);
break;
}
#endif
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
}
}
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wiznet5k_config_obj, 1, wiznet5k_config);
STATIC const mp_rom_map_elem_t wiznet5k_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_regs), MP_ROM_PTR(&wiznet5k_regs_obj) },
{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&wiznet5k_isconnected_obj) },
{ MP_ROM_QSTR(MP_QSTR_active), MP_ROM_PTR(&wiznet5k_active_obj) },
{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&wiznet5k_ifconfig_obj) },
{ MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&wiznet5k_status_obj) },
{ MP_ROM_QSTR(MP_QSTR_config), MP_ROM_PTR(&wiznet5k_config_obj) },
#if WIZNET5K_WITH_LWIP_STACK
{ MP_ROM_QSTR(MP_QSTR_send_ethernet), MP_ROM_PTR(&send_ethernet_obj) },
#endif
};
STATIC MP_DEFINE_CONST_DICT(wiznet5k_locals_dict, wiznet5k_locals_dict_table);
#if WIZNET5K_WITH_LWIP_STACK
#define NIC_TYPE_WIZNET_PROTOCOL
#else // WIZNET5K_PROVIDED_STACK
const mod_network_nic_protocol_t mod_network_nic_protocol_wiznet = {
.gethostbyname = wiznet5k_gethostbyname,
.socket = wiznet5k_socket_socket,
.close = wiznet5k_socket_close,
.bind = wiznet5k_socket_bind,
.listen = wiznet5k_socket_listen,
.accept = wiznet5k_socket_accept,
.connect = wiznet5k_socket_connect,
.send = wiznet5k_socket_send,
.recv = wiznet5k_socket_recv,
.sendto = wiznet5k_socket_sendto,
.recvfrom = wiznet5k_socket_recvfrom,
.setsockopt = wiznet5k_socket_setsockopt,
.settimeout = wiznet5k_socket_settimeout,
.ioctl = wiznet5k_socket_ioctl,
};
#define NIC_TYPE_WIZNET_PROTOCOL protocol, &mod_network_nic_protocol_wiznet,
#endif
MP_DEFINE_CONST_OBJ_TYPE(
mod_network_nic_type_wiznet5k,
MP_QSTR_WIZNET5K,
MP_TYPE_FLAG_NONE,
make_new, wiznet5k_make_new,
NIC_TYPE_WIZNET_PROTOCOL
locals_dict, &wiznet5k_locals_dict
);
#endif // MICROPY_PY_NETWORK_WIZNET5K
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