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The Wiznet5k series of chips support a MACRAW mode which allows the host to
send and receive Ethernet frames directly. This can be hooked into the
lwIP stack to provide a full "socket" implementation using this Wiznet
Ethernet device. This patch adds support for this feature.
To enable the feature one must add the following to mpconfigboard.mk, or
mpconfigport.mk:
MICROPY_PY_WIZNET5K = 5500
and the following to mpconfigboard.h, or mpconfigport.h:
#define MICROPY_PY_LWIP (1)
After wiring up the module (X5=CS, X4=RST), usage on a pyboard is:
import time, network
nic = network.WIZNET5K(pyb.SPI(1), pyb.Pin.board.X5, pyb.Pin.board.X4)
nic.active(1)
while not nic.isconnected():
time.sleep_ms(50) # needed to poll the NIC
print(nic.ifconfig())
Then use the socket module as usual.
Compared to using the built-in TCP/IP stack on the Wiznet module, some
performance is lost in MACRAW mode: with a lot of memory allocated to lwIP
buffers, lwIP gives Around 750,000 bytes/sec max TCP download, compared
with 1M/sec when using the TCP/IP stack on the Wiznet module.
102 lines
4.2 KiB
C
102 lines
4.2 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) 2013, 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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#ifndef MICROPY_INCLUDED_STM32_MODNETWORK_H
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#define MICROPY_INCLUDED_STM32_MODNETWORK_H
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#define MOD_NETWORK_IPADDR_BUF_SIZE (4)
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#define MOD_NETWORK_AF_INET (2)
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#define MOD_NETWORK_AF_INET6 (10)
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#define MOD_NETWORK_SOCK_STREAM (1)
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#define MOD_NETWORK_SOCK_DGRAM (2)
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#define MOD_NETWORK_SOCK_RAW (3)
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#if MICROPY_PY_LWIP
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struct netif;
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typedef struct _mod_network_nic_type_t {
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mp_obj_base_t base;
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void (*poll_callback)(void *data, struct netif *netif);
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} mod_network_nic_type_t;
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extern const mp_obj_type_t mod_network_nic_type_wiznet5k;
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mp_obj_t mod_network_nic_ifconfig(struct netif *netif, size_t n_args, const mp_obj_t *args);
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#else
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struct _mod_network_socket_obj_t;
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typedef struct _mod_network_nic_type_t {
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mp_obj_type_t base;
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// API for non-socket operations
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int (*gethostbyname)(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *ip_out);
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// API for socket operations; return -1 on error
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int (*socket)(struct _mod_network_socket_obj_t *socket, int *_errno);
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void (*close)(struct _mod_network_socket_obj_t *socket);
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int (*bind)(struct _mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno);
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int (*listen)(struct _mod_network_socket_obj_t *socket, mp_int_t backlog, int *_errno);
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int (*accept)(struct _mod_network_socket_obj_t *socket, struct _mod_network_socket_obj_t *socket2, byte *ip, mp_uint_t *port, int *_errno);
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int (*connect)(struct _mod_network_socket_obj_t *socket, byte *ip, mp_uint_t port, int *_errno);
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mp_uint_t (*send)(struct _mod_network_socket_obj_t *socket, const byte *buf, mp_uint_t len, int *_errno);
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mp_uint_t (*recv)(struct _mod_network_socket_obj_t *socket, byte *buf, mp_uint_t len, int *_errno);
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mp_uint_t (*sendto)(struct _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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mp_uint_t (*recvfrom)(struct _mod_network_socket_obj_t *socket, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno);
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int (*setsockopt)(struct _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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int (*settimeout)(struct _mod_network_socket_obj_t *socket, mp_uint_t timeout_ms, int *_errno);
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int (*ioctl)(struct _mod_network_socket_obj_t *socket, mp_uint_t request, mp_uint_t arg, int *_errno);
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} mod_network_nic_type_t;
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typedef struct _mod_network_socket_obj_t {
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mp_obj_base_t base;
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mp_obj_t nic;
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mod_network_nic_type_t *nic_type;
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union {
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struct {
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uint8_t domain;
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uint8_t type;
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int8_t fileno;
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} u_param;
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mp_uint_t u_state;
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};
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} mod_network_socket_obj_t;
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extern const mod_network_nic_type_t mod_network_nic_type_wiznet5k;
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extern const mod_network_nic_type_t mod_network_nic_type_cc3k;
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#endif
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void mod_network_init(void);
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void mod_network_deinit(void);
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void mod_network_register_nic(mp_obj_t nic);
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mp_obj_t mod_network_find_nic(const uint8_t *ip);
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#endif // MICROPY_INCLUDED_STM32_MODNETWORK_H
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