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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
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
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
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
377
378
379
380
381
|
/****************************************************************************
* config/pic32-starterkit/src/up_nsh.c
* arch/arm/src/board/up_nsh.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <unistd.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi.h>
#include <nuttx/mmcsd.h>
#include <nuttx/usb/usbhost.h>
#include "pic32mx-internal.h"
#include "starterkit_internal.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Assume that we have MMC/SD, USB host (and USB device) */
#define NSH_HAVEMMCSD 1
#define NSH_HAVEUSBHOST 1
/* The PIC32 Ethernet Starter Kit does not have an SD slot on board. If one
* is added, then it must be specified by defining which SPI bus that it
* is connected on.
*/
#ifndef CONFIG_PIC32MX_MMCSDSPIPORTNO
# undef NSH_HAVEMMCSD
#endif
/* Make sure that the configuration will support the SD card */
#ifdef NSH_HAVEMMCSD
/* Make sure that the NSH configuration uses the correct SPI */
# if !defined(CONFIG_NSH_MMCSDSPIPORTNO)
# define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO
# elif CONFIG_NSH_MMCSDSPIPORTNO != CONFIG_PIC32MX_MMCSDSPIPORTNO
# warning "CONFIG_PIC32MX_MMCSDSPIPORTNO does not match CONFIG_NSH_MMCSDSPIPORTNO"
# undef CONFIG_NSH_MMCSDSPIPORTNO
# define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO
# endif
/* Make sure that the NSH configuration uses the slot */
# if !defined(CONFIG_NSH_MMCSDSLOTNO) || CONFIG_NSH_MMCSDSLOTNO != 0
# warning "The PIC32 Starter Kit has only one slot (0)"
# undef CONFIG_NSH_MMCSDSLOTNO
# define CONFIG_NSH_MMCSDSLOTNO 0
# endif
/* Make sure that the correct SPI is enabled in the configuration */
# if CONFIG_PIC32MX_MMCSDSPIPORTNO == 1 && !defined(CONFIG_PIC32MX_SPI1)
# warning "CONFIG_PIC32MX_SPI1 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 2 && !defined(CONFIG_PIC32MX_SPI2)
# warning "CONFIG_PIC32MX_SPI2 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 3 && !defined(CONFIG_PIC32MX_SPI3)
# warning "CONFIG_PIC32MX_SPI3 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 4 && !defined(CONFIG_PIC32MX_SPI4)
# warning "CONFIG_PIC32MX_SPI4 is not enabled"
# undef NSH_HAVEMMCSD
# endif
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#if defined(CONFIG_DISABLE_MOUNTPOINT)
# undef NSH_HAVEMMCSD
#endif
/* Select /dev/mmcsd0 if no other minor number is provided */
#ifndef CONFIG_NSH_MMCSDMINOR
# define CONFIG_NSH_MMCSDMINOR 0
#endif
/* USB Host */
#ifdef CONFIG_USBHOST
# ifndef CONFIG_PIC32MX_USBHOST
# error "CONFIG_PIC32MX_USBHOST is not selected"
# undef NSH_HAVEUSBHOST
# endif
#endif
#ifdef CONFIG_PIC32MX_USBHOST
# ifndef CONFIG_USBHOST
# warning "CONFIG_USBHOST is not selected"
# undef NSH_HAVEUSBHOST
# endif
#endif
#if !defined(CONFIG_USBHOST) || !defined(CONFIG_PIC32MX_USBHOST)
# undef NSH_HAVEUSBHOST
#endif
#ifdef NSH_HAVEUSBHOST
# ifndef CONFIG_USBHOST_DEFPRIO
# define CONFIG_USBHOST_DEFPRIO 50
# endif
# ifndef CONFIG_USBHOST_STACKSIZE
# define CONFIG_USBHOST_STACKSIZE 1024
# endif
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lowsyslog(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lowsyslog
# else
# define message printf
# endif
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
static struct usbhost_driver_s *g_drvr;
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_waiter
*
* Description:
* Wait for USB devices to be connected.
*
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
static int nsh_waiter(int argc, char *argv[])
{
bool connected = false;
int ret;
message("nsh_waiter: Running\n");
for (;;)
{
/* Wait for the device to change state */
ret = DRVR_WAIT(g_drvr, connected);
DEBUGASSERT(ret == OK);
connected = !connected;
message("nsh_waiter: %s\n", connected ? "connected" : "disconnected");
/* Did we just become connected? */
if (connected)
{
/* Yes.. enumerate the newly connected device */
(void)DRVR_ENUMERATE(g_drvr);
}
}
/* Keep the compiler from complaining */
return 0;
}
#endif
/****************************************************************************
* Name: nsh_sdinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVEMMCSD
static int nsh_sdinitialize(void)
{
FAR struct spi_dev_s *ssp;
int ret;
/* Get the SPI port */
ssp = up_spiinitialize(CONFIG_NSH_MMCSDSPIPORTNO);
if (!ssp)
{
message("nsh_archinitialize: Failed to initialize SPI port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
ret = -ENODEV;
goto errout;
}
message("Successfully initialized SPI port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
/* Bind the SPI port to the slot */
ret = mmcsd_spislotinitialize(CONFIG_NSH_MMCSDMINOR,
CONFIG_NSH_MMCSDSLOTNO, ssp);
if (ret < 0)
{
message("nsh_sdinitialize: "
"Failed to bind SPI port %d to MMC/SD slot %d: %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO, ret);
goto errout;
}
message("Successfuly bound SPI port %d to MMC/SD slot %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO);
return OK;
errout:
return ret;
}
#else
# define nsh_sdinitialize() (OK)
#endif
/****************************************************************************
* Name: nsh_usbhostinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
static int nsh_usbhostinitialize(void)
{
int pid;
int ret;
/* First, register all of the class drivers needed to support the drivers
* that we care about:
*/
message("nsh_usbhostinitialize: Register class drivers\n");
ret = usbhost_storageinit();
if (ret != OK)
{
message("nsh_usbhostinitialize: Failed to register the mass storage class\n");
}
/* Then get an instance of the USB host interface */
message("nsh_usbhostinitialize: Initialize USB host\n");
g_drvr = usbhost_initialize(0);
if (g_drvr)
{
/* Start a thread to handle device connection. */
message("nsh_usbhostinitialize: Start nsh_waiter\n");
#ifndef CONFIG_CUSTOM_STACK
pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO,
CONFIG_USBHOST_STACKSIZE,
(main_t)nsh_waiter, (const char **)NULL);
#else
pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO,
(main_t)nsh_waiter, (const char **)NULL);
#endif
return pid < 0 ? -ENOEXEC : OK;
}
return -ENODEV;
}
#else
# define nsh_usbhostinitialize() (OK)
#endif
/****************************************************************************
* Name: nsh_usbdevinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef CONFIG_USBDEV
static int nsh_usbdevinitialize(void)
{
/* The PIC32 Starter Kit has no way to know when the USB is connected. So
* we will fake it and tell the USB driver that the USB is connected now.
*/
pic32mx_usbattach();
return OK;
}
#else
# define nsh_usbdevinitialize() (OK)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int nsh_archinitialize(void)
{
int ret;
/* Initialize SPI-based microSD */
ret = nsh_sdinitialize();
if (ret == OK)
{
/* Initialize USB host */
ret = nsh_usbhostinitialize();
}
if (ret == OK)
{
/* Initialize USB device */
ret = nsh_usbdevinitialize();
}
return ret;
}
|