/* * This file is part of the Micro Python 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 "stm32f4xx_hal.h" #include "mpconfig.h" #include "nlr.h" #include "misc.h" #include "qstr.h" #include "obj.h" #include "objlist.h" #include "runtime.h" #include "modnetwork.h" #include "pin.h" #include "genhdr/pins.h" #include "spi.h" #include MICROPY_HAL_H #include "ethernet/wizchip_conf.h" #include "ethernet/socket.h" #include "internet/dns/dns.h" /// \module wiznet5k - control WIZnet5x00 Ethernet adaptors /// /// This module allows you to control WIZnet5x00 Ethernet adaptors based on /// the W5200 and W5500 chipsets (only W5200 tested). /// /// Example usage: /// /// import wiznet5k /// w = wiznet5k.WIZnet5k() /// print(w.ipaddr()) /// w.gethostbyname('micropython.org') /// s = w.socket() /// s.connect(('192.168.0.2', 8080)) /// s.send('hello') /// print(s.recv(10)) #define IPADDR_BUF_SIZE (4) STATIC mp_obj_t wiznet5k_socket_new(uint8_t sn, mp_uint_t type); typedef struct _wiznet5k_obj_t { mp_obj_base_t base; mp_uint_t cris_state; SPI_HandleTypeDef *spi; const pin_obj_t *cs; const pin_obj_t *rst; uint8_t socket_used; } wiznet5k_obj_t; 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) { GPIO_clear_pin(wiznet5k_obj.cs->gpio, wiznet5k_obj.cs->pin_mask); } STATIC void wiz_cs_deselect(void) { GPIO_set_pin(wiznet5k_obj.cs->gpio, wiznet5k_obj.cs->pin_mask); } STATIC void wiz_spi_read(uint8_t *buf, uint32_t len) { HAL_StatusTypeDef status = HAL_SPI_Receive(wiznet5k_obj.spi, buf, len, 5000); (void)status; } STATIC void wiz_spi_write(const uint8_t *buf, uint32_t len) { HAL_StatusTypeDef status = HAL_SPI_Transmit(wiznet5k_obj.spi, (uint8_t*)buf, len, 5000); (void)status; } // Check the return value from Wiz socket calls: // - on error (<0) an exception is raised // - SOCK_OK or SOCK_BUSY does nothing // - anything positive does nothing STATIC void check_sock_return_value(int8_t ret) { // TODO convert Wiz errno's to POSIX ones if (ret < 0) { nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "socket error %d", ret)); } } STATIC mp_obj_t wiznet5k_socket(mp_obj_t self_in, int domain, int type, int fileno, int *_errno) { if (domain != MOD_NETWORK_AF_INET) { *_errno = EAFNOSUPPORT; return MP_OBJ_NULL; } switch (type) { case MOD_NETWORK_SOCK_STREAM: type = Sn_MR_TCP; break; case MOD_NETWORK_SOCK_DGRAM: type = Sn_MR_UDP; break; default: *_errno = EINVAL; return MP_OBJ_NULL; } if (fileno < 0) { // get first unused socket number for (mp_uint_t sn = 0; sn < _WIZCHIP_SOCK_NUM_; sn++) { if ((wiznet5k_obj.socket_used & (1 << sn)) == 0) { fileno = sn; break; } } if (fileno < 0) { // too many open sockets *_errno = EMFILE; return MP_OBJ_NULL; } } return wiznet5k_socket_new(fileno, type); } STATIC int wiznet5k_gethostbyname(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *out_ip) { uint8_t dns_ip[IPADDR_BUF_SIZE] = {8, 8, 8, 8}; uint8_t *buf = m_new(uint8_t, MAX_DNS_BUF_SIZE); DNS_init(0, buf); 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 ENOENT; } } /******************************************************************************/ // Micro Python bindings /// \class WIZnet5k - driver for WIZnet5x00 Ethernet modules STATIC void wiznet5k_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) { print(env, "WIZnet5k()"); } /// \classmethod \constructor(spi, pin_cs, pin_rst) /// Create and return a WIZnet5k object. STATIC mp_obj_t wiznet5k_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { // check arguments mp_arg_check_num(n_args, n_kw, 3, 3, false); // 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_get_handle(args[0]); wiznet5k_obj.cs = pin_find(args[1]); wiznet5k_obj.rst = pin_find(args[2]); wiznet5k_obj.socket_used = 0; /*!< SPI configuration */ wiznet5k_obj.spi->Init.Mode = SPI_MODE_MASTER; wiznet5k_obj.spi->Init.Direction = SPI_DIRECTION_2LINES; wiznet5k_obj.spi->Init.DataSize = SPI_DATASIZE_8BIT; wiznet5k_obj.spi->Init.CLKPolarity = SPI_POLARITY_LOW; // clock is low when idle wiznet5k_obj.spi->Init.CLKPhase = SPI_PHASE_1EDGE; // data latched on first edge, which is rising edge for low-idle wiznet5k_obj.spi->Init.NSS = SPI_NSS_SOFT; wiznet5k_obj.spi->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; // clock freq = f_PCLK / this_prescale_value; Wiz820i can do up to 80MHz wiznet5k_obj.spi->Init.FirstBit = SPI_FIRSTBIT_MSB; wiznet5k_obj.spi->Init.TIMode = SPI_TIMODE_DISABLED; wiznet5k_obj.spi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; wiznet5k_obj.spi->Init.CRCPolynomial = 7; // unused spi_init(wiznet5k_obj.spi, false); GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Speed = GPIO_SPEED_FAST; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Pin = wiznet5k_obj.cs->pin_mask; HAL_GPIO_Init(wiznet5k_obj.cs->gpio, &GPIO_InitStructure); GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Speed = GPIO_SPEED_FAST; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Pin = wiznet5k_obj.rst->pin_mask; HAL_GPIO_Init(wiznet5k_obj.rst->gpio, &GPIO_InitStructure); GPIO_clear_pin(wiznet5k_obj.rst->gpio, wiznet5k_obj.rst->pin_mask); HAL_Delay(1); // datasheet says 2us GPIO_set_pin(wiznet5k_obj.rst->gpio, wiznet5k_obj.rst->pin_mask); HAL_Delay(160); // datasheet says 150ms 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_read, wiz_spi_write); 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); // TODO make this configurable! wiz_NetInfo netinfo = { .mac = {0x00, 0x08, 0xdc, 0xab, 0xcd, 0xef}, .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, }; ctlnetwork(CN_SET_NETINFO, (void*)&netinfo); // register with network module mod_network_register_nic(&wiznet5k_obj); // return wiznet5k object return &wiznet5k_obj; } /// \method regs() /// Dump WIZnet5k registers. STATIC mp_obj_t wiznet5k_regs(mp_obj_t self_in) { //wiznet5k_obj_t *self = self_in; printf("Wiz CREG:"); for (int i = 0; i < 0x50; ++i) { if (i % 16 == 0) { printf("\n %04x:", i); } printf(" %02x", WIZCHIP_READ(i)); } 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); } printf(" %02x", WIZCHIP_READ(WIZCHIP_SREG_ADDR(sn, i))); } } printf("\n"); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_regs_obj, wiznet5k_regs); /// \method ipaddr([(ip, subnet, gateway, dns)]) /// Get/set IP address, subnet mask, gateway and DNS. STATIC mp_obj_t wiznet5k_ipaddr(mp_uint_t n_args, const mp_obj_t *args) { wiz_NetInfo netinfo; ctlnetwork(CN_GET_NETINFO, &netinfo); if (n_args == 1) { // get mp_obj_t tuple[4] = { mod_network_format_ipv4_addr(netinfo.ip), mod_network_format_ipv4_addr(netinfo.sn), mod_network_format_ipv4_addr(netinfo.gw), mod_network_format_ipv4_addr(netinfo.dns), }; return mp_obj_new_tuple(4, tuple); } else { // set mp_obj_t *items; mp_obj_get_array_fixed_n(args[1], 4, &items); mod_network_parse_ipv4_addr(items[0], netinfo.ip); mod_network_parse_ipv4_addr(items[1], netinfo.sn); mod_network_parse_ipv4_addr(items[2], netinfo.gw); mod_network_parse_ipv4_addr(items[3], netinfo.dns); ctlnetwork(CN_SET_NETINFO, &netinfo); return mp_const_none; } } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_ipaddr_obj, 1, 2, wiznet5k_ipaddr); STATIC const mp_map_elem_t wiznet5k_locals_dict_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR_regs), (mp_obj_t)&wiznet5k_regs_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_ipaddr), (mp_obj_t)&wiznet5k_ipaddr_obj }, }; STATIC MP_DEFINE_CONST_DICT(wiznet5k_locals_dict, wiznet5k_locals_dict_table); const mod_network_nic_type_t mod_network_nic_type_wiznet5k = { .base = { { &mp_type_type }, .name = MP_QSTR_WIZnet5k, .print = wiznet5k_print, .make_new = wiznet5k_make_new, .locals_dict = (mp_obj_t)&wiznet5k_locals_dict, }, .socket = wiznet5k_socket, .gethostbyname = wiznet5k_gethostbyname, }; /******************************************************************************/ // Micro Python bindings; WIZnet5x00 socket class typedef struct _wiznet5k_socket_obj_t { mp_obj_base_t base; uint8_t sn; uint8_t type; } wiznet5k_socket_obj_t; STATIC const mp_obj_type_t wiznet5k_socket_type; STATIC mp_obj_t wiznet5k_socket_new(uint8_t sn, mp_uint_t type) { wiznet5k_socket_obj_t *s = m_new_obj(wiznet5k_socket_obj_t); s->base.type = &wiznet5k_socket_type; s->sn = sn; s->type = type; return s; } STATIC void wiznet5k_socket_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) { wiznet5k_socket_obj_t *self = self_in; print(env, "", self->sn, getSn_MR(self->sn)); } STATIC mp_obj_t wiznet5k_socket_close(mp_obj_t self_in) { wiznet5k_socket_obj_t *self = self_in; wiznet5k_obj.socket_used &= ~(1 << self->sn); mp_int_t ret = WIZCHIP_EXPORT(close)(self->sn); check_sock_return_value(ret); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_socket_close_obj, wiznet5k_socket_close); STATIC mp_obj_t wiznet5k_socket_bind(mp_obj_t self_in, mp_obj_t addr_in) { wiznet5k_socket_obj_t *self = self_in; uint8_t ip[IPADDR_BUF_SIZE]; mp_uint_t port = mod_network_parse_inet_addr(addr_in, ip); // open the socket in server mode mp_int_t ret = WIZCHIP_EXPORT(socket)(self->sn, self->type, port, 0); check_sock_return_value(ret); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_bind_obj, wiznet5k_socket_bind); STATIC mp_obj_t wiznet5k_socket_listen(mp_obj_t self_in, mp_obj_t backlog) { wiznet5k_socket_obj_t *self = self_in; mp_int_t ret = WIZCHIP_EXPORT(listen)(self->sn); check_sock_return_value(ret); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_listen_obj, wiznet5k_socket_listen); STATIC mp_obj_t wiznet5k_socket_accept(mp_obj_t self_in) { //wiznet5k_socket_obj_t *self = self_in; // TODO what to do here exactly? mp_obj_t tuple[2] = {self_in, mp_const_none}; return mp_obj_new_tuple(2, tuple); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_socket_accept_obj, wiznet5k_socket_accept); STATIC mp_obj_t wiznet5k_socket_connect(mp_obj_t self_in, mp_obj_t addr_in) { wiznet5k_socket_obj_t *self = self_in; // first open the socket in client mode mp_int_t ret = WIZCHIP_EXPORT(socket)(self->sn, self->type, 0, 0); check_sock_return_value(ret); // now connect uint8_t ip[IPADDR_BUF_SIZE]; mp_uint_t port = mod_network_parse_inet_addr(addr_in, ip); ret = WIZCHIP_EXPORT(connect)(self->sn, ip, port); check_sock_return_value(ret); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_connect_obj, wiznet5k_socket_connect); STATIC mp_obj_t wiznet5k_socket_disconnect(mp_obj_t self_in) { wiznet5k_socket_obj_t *self = self_in; mp_int_t ret = WIZCHIP_EXPORT(disconnect)(self->sn); check_sock_return_value(ret); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wiznet5k_socket_disconnect_obj, wiznet5k_socket_disconnect); STATIC mp_obj_t wiznet5k_socket_send(mp_obj_t self_in, mp_obj_t data_in) { wiznet5k_socket_obj_t *self = self_in; mp_buffer_info_t bufinfo; mp_get_buffer_raise(data_in, &bufinfo, MP_BUFFER_READ); mp_int_t ret = WIZCHIP_EXPORT(send)(self->sn, bufinfo.buf, bufinfo.len); check_sock_return_value(ret); return mp_obj_new_int(ret); } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_send_obj, wiznet5k_socket_send); STATIC mp_obj_t wiznet5k_socket_recv(mp_obj_t self_in, mp_obj_t len_in) { wiznet5k_socket_obj_t *self = self_in; mp_int_t len = mp_obj_get_int(len_in); byte *buf; mp_obj_t ret_obj = mp_obj_str_builder_start(&mp_type_bytes, len, &buf); mp_int_t ret = WIZCHIP_EXPORT(recv)(self->sn, buf, len); check_sock_return_value(ret); return mp_obj_str_builder_end_with_len(ret_obj, len); } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_recv_obj, wiznet5k_socket_recv); STATIC mp_obj_t wiznet5k_socket_sendto(mp_obj_t self_in, mp_obj_t data_in, mp_obj_t addr_in) { wiznet5k_socket_obj_t *self = self_in; mp_buffer_info_t bufinfo; mp_get_buffer_raise(data_in, &bufinfo, MP_BUFFER_READ); uint8_t ip[IPADDR_BUF_SIZE]; mp_uint_t port = mod_network_parse_inet_addr(addr_in, ip); mp_int_t ret = WIZCHIP_EXPORT(sendto)(self->sn, bufinfo.buf, bufinfo.len, ip, port); check_sock_return_value(ret); return mp_obj_new_int(ret); } STATIC MP_DEFINE_CONST_FUN_OBJ_3(wiznet5k_socket_sendto_obj, wiznet5k_socket_sendto); STATIC mp_obj_t wiznet5k_socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) { wiznet5k_socket_obj_t *self = self_in; mp_int_t len = mp_obj_get_int(len_in); uint8_t *buf = m_new(uint8_t, len); uint8_t ip[4]; uint16_t port; mp_int_t ret = WIZCHIP_EXPORT(recvfrom)(self->sn, buf, len, ip, &port); check_sock_return_value(ret); mp_obj_t tuple[2] = { mp_obj_new_bytes(buf, ret), mod_network_format_inet_addr(ip, port), }; return mp_obj_new_tuple(2, tuple); } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wiznet5k_socket_recvfrom_obj, wiznet5k_socket_recvfrom); STATIC const mp_map_elem_t wiznet5k_socket_locals_dict_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&wiznet5k_socket_close_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_bind), (mp_obj_t)&wiznet5k_socket_bind_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_listen), (mp_obj_t)&wiznet5k_socket_listen_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_accept), (mp_obj_t)&wiznet5k_socket_accept_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_connect), (mp_obj_t)&wiznet5k_socket_connect_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_disconnect), (mp_obj_t)&wiznet5k_socket_disconnect_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_send), (mp_obj_t)&wiznet5k_socket_send_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_recv), (mp_obj_t)&wiznet5k_socket_recv_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_sendto), (mp_obj_t)&wiznet5k_socket_sendto_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_recvfrom), (mp_obj_t)&wiznet5k_socket_recvfrom_obj }, }; STATIC MP_DEFINE_CONST_DICT(wiznet5k_socket_locals_dict, wiznet5k_socket_locals_dict_table); STATIC const mp_obj_type_t wiznet5k_socket_type = { { &mp_type_type }, .name = MP_QSTR_socket, .print = wiznet5k_socket_print, .locals_dict = (mp_obj_t)&wiznet5k_socket_locals_dict, };