/* * 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 #include #include #include #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 "lwip/ethip6.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 #if _WIZCHIP_ < W5200 uint8_t sn_size[8] = {8, 0, 0, 0, 8, 0, 0, 0}; #else uint8_t sn_size[16] = {16, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0}; #endif 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 setMR2(getMR2() | 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 netif_init: %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); #if LWIP_IPV6 netif->output_ip6 = ethip6_output; netif->flags |= NETIF_FLAG_MLD6; #else // Drop IPv6 packets if firmware does not support it setSn_MR(0, getSn_MR(0) | Sn_MR_MIP6B); #endif return ERR_OK; } static void wiznet5k_lwip_init(wiznet5k_obj_t *self) { ip_addr_t ipconfig[4]; IP_ADDR4(&ipconfig[0], 0, 0, 0, 0); IP_ADDR4(&ipconfig[1], 0, 0, 0, 0); IP_ADDR4(&ipconfig[2], 0, 0, 0, 0); IP_ADDR4(&ipconfig[3], 0, 0, 0, 0); netif_add(&self->netif, ip_2_ip4(&ipconfig[0]), ip_2_ip4(&ipconfig[1]), ip_2_ip4(&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 && ip_2_ip4(&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); } #if WIZNET5K_WITH_LWIP_STACK && LWIP_IPV6 netif_create_ip6_linklocal_address(&self->netif, 1); #endif // 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 network_wiznet5k_ipconfig(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) { wiznet5k_obj_t *self = MP_OBJ_TO_PTR(args[0]); return mod_network_nic_ipconfig(&self->netif, n_args - 1, args + 1, kwargs); } static MP_DEFINE_CONST_FUN_OBJ_KW(wiznet5k_ipconfig_obj, 1, network_wiznet5k_ipconfig); 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) }, #if WIZNET5K_WITH_LWIP_STACK { MP_ROM_QSTR(MP_QSTR_ipconfig), MP_ROM_PTR(&wiznet5k_ipconfig_obj) }, #endif { 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