modnwwiznet5k.c 16.2 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
/*
 * 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 <stdio.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>

#include "stm32f4xx_hal.h"

#include "mpconfig.h"
#include "nlr.h"
#include "misc.h"
#include "qstr.h"
#include "obj.h"
39
#include "objlist.h"
40
#include "runtime.h"
41
#include "modnetwork.h"
42
43
44
45
46
47
48
49
50
#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"

51
/// \moduleref network
52

53
54
55
typedef struct _wiznet5k_obj_t {
    mp_obj_base_t base;
    mp_uint_t cris_state;
56
    SPI_HandleTypeDef *spi;
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
    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;
}

90
91
92
93
94
95
96
97
98
99
100
101
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(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;
102
103
104
    }
}

105
106
STATIC int wiznet5k_socket_socket(mod_network_socket_obj_t *socket, int *_errno) {
    if (socket->u_param.domain != MOD_NETWORK_AF_INET) {
107
        *_errno = EAFNOSUPPORT;
108
        return -1;
109
110
    }

111
112
113
114
    switch (socket->u_param.type) {
        case MOD_NETWORK_SOCK_STREAM: socket->u_param.type = Sn_MR_TCP; break;
        case MOD_NETWORK_SOCK_DGRAM: socket->u_param.type = Sn_MR_UDP; break;
        default: *_errno = EINVAL; return -1;
115
116
    }

117
    if (socket->u_param.fileno == -1) {
118
119
120
        // get first unused socket number
        for (mp_uint_t sn = 0; sn < _WIZCHIP_SOCK_NUM_; sn++) {
            if ((wiznet5k_obj.socket_used & (1 << sn)) == 0) {
121
122
                wiznet5k_obj.socket_used |= (1 << sn);
                socket->u_param.fileno = sn;
123
124
                break;
            }
125
        }
126
        if (socket->u_param.fileno == -1) {
127
128
            // too many open sockets
            *_errno = EMFILE;
129
            return -1;
130
131
132
        }
    }

133
134
135
136
137
138
139
140
    // 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->u_param.domain = 0;

    return 0;
141
142
}

143
144
145
146
147
STATIC void wiznet5k_socket_close(mod_network_socket_obj_t *socket) {
    uint8_t sn = (uint8_t)socket->u_param.fileno;
    if (sn < _WIZCHIP_SOCK_NUM_) {
        wiznet5k_obj.socket_used &= ~(1 << sn);
        WIZCHIP_EXPORT(close)(sn);
148
    }
149
150
}

151
152
153
154
155
156
157
158
159
160
161
162
163
164
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->u_param.fileno, socket->u_param.type, port, 0);
    if (ret < 0) {
        wiznet5k_socket_close(socket);
        *_errno = -ret;
        return -1;
    }

    // indicate that this socket has been opened
    socket->u_param.domain = 1;

    // success
    return 0;
165
166
}

167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
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->u_param.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->u_param.fileno);
        if (sr == SOCK_ESTABLISHED) {
            socket2->u_param = socket->u_param;
            // TODO need to populate this with the correct values
            ip[0] = 0;
            ip[1] = 0;
            ip[2] = 0;
            ip[3] = 0;
            *port = getSn_PORT(socket2->u_param.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->u_param.domain = MOD_NETWORK_AF_INET;
            socket->u_param.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 = ENOTCONN; // ??
            return -1;
        }
        HAL_Delay(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_int_t ret = WIZCHIP_EXPORT(connect)(socket->u_param.fileno, ip, port);
    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_int_t ret = WIZCHIP_EXPORT(send)(socket->u_param.fileno, (byte*)buf, len);
    // 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_int_t ret = WIZCHIP_EXPORT(recv)(socket->u_param.fileno, buf, len);
    // 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->u_param.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_int_t ret = WIZCHIP_EXPORT(sendto)(socket->u_param.fileno, (byte*)buf, len, ip, port);
    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_int_t ret = WIZCHIP_EXPORT(recvfrom)(socket->u_param.fileno, buf, len, ip, &port2);
    *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 = EINVAL;
    return -1;
}

STATIC int wiznet5k_socket_settimeout(mod_network_socket_obj_t *socket, mp_uint_t timeout_ms, int *_errno) {
    // TODO
    *_errno = EINVAL;
    return -1;

    /*
    if (timeout_ms == 0) {
        // set non-blocking mode
        uint8_t arg = SOCK_IO_NONBLOCK;
        WIZCHIP_EXPORT(ctlsocket)(socket->u_param.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) {
    // TODO
    *_errno = EINVAL;
    return -1;
}

#if 0
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, "<WIZNET5K.socket sn=%u MR=0x%02x>", self->sn, getSn_MR(self->sn));
}

STATIC mp_obj_t wiznet5k_socket_disconnect(mp_obj_t self_in) {
    mp_int_t ret = WIZCHIP_EXPORT(disconnect)(self->sn);
    return 0;
}
#endif

/******************************************************************************/
// Micro Python bindings

324
/// \classmethod \constructor(spi, pin_cs, pin_rst)
325
/// Create and return a WIZNET5K object.
326
327
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
328
    mp_arg_check_num(n_args, n_kw, 3, 3, false);
329
330

    // init the wiznet5k object
331
    wiznet5k_obj.base.type = (mp_obj_type_t*)&mod_network_nic_type_wiznet5k;
332
    wiznet5k_obj.cris_state = 0;
333
334
335
    wiznet5k_obj.spi = spi_get_handle(args[0]);
    wiznet5k_obj.cs = pin_find(args[1]);
    wiznet5k_obj.rst = pin_find(args[2]);
336
337
338
    wiznet5k_obj.socket_used = 0;

    /*!< SPI configuration */
339
340
341
342
343
344
345
346
347
348
349
    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
350
    spi_init(wiznet5k_obj.spi, false);
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376

    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);

377
    // set some sensible default values; they are configurable using ifconfig method
378
379
380
381
382
383
384
385
386
387
    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);

388
389
390
    // seems we need a small delay after init
    HAL_Delay(250);

391
392
393
    // register with network module
    mod_network_register_nic(&wiznet5k_obj);

394
395
396
397
398
    // return wiznet5k object
    return &wiznet5k_obj;
}

/// \method regs()
399
/// Dump WIZNET5K registers.
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
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);

423
/// \method ifconfig([(ip, subnet, gateway, dns)])
424
/// Get/set IP address, subnet mask, gateway and DNS.
425
STATIC mp_obj_t wiznet5k_ifconfig(mp_uint_t n_args, const mp_obj_t *args) {
426
427
428
429
430
    wiz_NetInfo netinfo;
    ctlnetwork(CN_GET_NETINFO, &netinfo);
    if (n_args == 1) {
        // get
        mp_obj_t tuple[4] = {
431
432
433
434
            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),
435
436
437
438
439
440
        };
        return mp_obj_new_tuple(4, tuple);
    } else {
        // set
        mp_obj_t *items;
        mp_obj_get_array_fixed_n(args[1], 4, &items);
441
442
443
444
        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);
445
446
447
448
        ctlnetwork(CN_SET_NETINFO, &netinfo);
        return mp_const_none;
    }
}
449
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(wiznet5k_ifconfig_obj, 1, 2, wiznet5k_ifconfig);
450
451
452

STATIC const mp_map_elem_t wiznet5k_locals_dict_table[] = {
    { MP_OBJ_NEW_QSTR(MP_QSTR_regs), (mp_obj_t)&wiznet5k_regs_obj },
453
    { MP_OBJ_NEW_QSTR(MP_QSTR_ifconfig), (mp_obj_t)&wiznet5k_ifconfig_obj },
454
455
456
457
};

STATIC MP_DEFINE_CONST_DICT(wiznet5k_locals_dict, wiznet5k_locals_dict_table);

458
459
460
const mod_network_nic_type_t mod_network_nic_type_wiznet5k = {
    .base = {
        { &mp_type_type },
461
        .name = MP_QSTR_WIZNET5K,
462
463
464
465
        .make_new = wiznet5k_make_new,
        .locals_dict = (mp_obj_t)&wiznet5k_locals_dict,
    },
    .gethostbyname = wiznet5k_gethostbyname,
466
467
468
469
470
471
472
473
474
475
476
477
478
    .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,
479
};