Outline ![]()
Files ![]()
loading...
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
382
383
384
385
386
387
388
389
/**
******************************************************************************
* @file USB_Host/MTP_Standalone/Src/menu.c
* @author MCD Application Team
* @brief This file implements Menu Functions
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------ */
#include "main.h"
/* Private typedef ----------------------------------------------------------- */
/* Private define ------------------------------------------------------------ */
/* Private macro ------------------------------------------------------------- */
/* Private variables --------------------------------------------------------- */
MTP_DEMO_StateMachine mtp_demo;
uint8_t prev_select = 0;
MTP_DEMO_SelectMode mtp_select_mode;
AUDIO_PLAYBACK_StateTypeDef audio_state;
uint8_t *MTP_main_menu[] = {
(uint8_t *)
" 1 - Explore audio file ",
(uint8_t *)
" 2 - Start audio Player ",
(uint8_t *)
" 3 - Re-Enumerate ",
};
/* Private function prototypes ----------------------------------------------- */
static void MTP_SelectItem(uint8_t ** menu, uint8_t item);
static void MTP_MenuProbeKey(JOYState_TypeDef state);
static void MTP_ChangeSelectMode(MTP_DEMO_SelectMode select_mode);
static void LCD_ClearTextZone(void);
/* Private functions --------------------------------------------------------- */
/**
* @brief Demo state machine.
* @param None
* @retval None
*/
void MTP_MenuInit(void)
{
mtp_demo.state = MTP_DEMO_IDLE;
mtp_select_mode = MTP_SELECT_MENU;
MTP_SelectItem(MTP_main_menu, 0);
}
/**
* @brief Manages MTP Menu Process.
* @param None
* @retval None
*/
void MTP_MenuProcess(void)
{
switch (mtp_demo.state)
{
case MTP_DEMO_IDLE:
MTP_SelectItem(MTP_main_menu, 0);
mtp_demo.state = MTP_DEMO_WAIT;
mtp_demo.select = 0;
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(17,
(uint8_t *)
"Use [Joystick Left/Right] to scroll up/down");
BSP_LCD_DisplayStringAtLine(18,
(uint8_t *)
"Use [Joystick Up/Down] to scroll MTP menu");
break;
case MTP_DEMO_WAIT:
if (mtp_demo.select != prev_select)
{
prev_select = mtp_demo.select;
MTP_SelectItem(MTP_main_menu, mtp_demo.select & 0x7F);
/* Handle select item */
if (mtp_demo.select & 0x80)
{
switch (mtp_demo.select & 0x7F)
{
case 0:
mtp_demo.state = MTP_DEMO_EXPLORE;
break;
case 1:
/* Display HMI messages */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(14,
(uint8_t *)
" ");
BSP_LCD_DisplayStringAtLine(15,
(uint8_t *)
" ");
BSP_LCD_DisplayStringAtLine(16,
(uint8_t *)
"Use [User Key] To Stop and return from player");
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
/* Set PLAYBACK state and start playing 1st file */
audio_state = AUDIO_STATE_IDLE;
mtp_demo.state = MTP_DEMO_PLAYBACK;
MTP_ChangeSelectMode(MTP_PLAYBACK_CONTROL);
break;
case 2:
mtp_demo.state = MTP_REENUMERATE;
break;
default:
break;
}
}
}
break;
case MTP_DEMO_EXPLORE:
if (Appli_state == APPLICATION_READY)
{
if (MTP_Init() == 0)
{
if (MTP_ExploreWavFile() > 0)
{
LCD_ErrLog("There is no WAV file on the microSD.\n");
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
}
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
break;
case MTP_DEMO_PLAYBACK:
if (Appli_state == APPLICATION_READY)
{
if (MTP_Init() == 0)
{
if (audio_state == AUDIO_STATE_IDLE)
{
/* Start Playing */
audio_state = AUDIO_STATE_INIT;
if (AUDIO_Start(0) == AUDIO_ERROR_IO)
{
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAtLine(10, (uint8_t *) "[ UP ] : Volume +");
BSP_LCD_DisplayStringAtLine(11, (uint8_t *) "[ DOWN ] : Volume -");
BSP_LCD_DisplayStringAtLine(12, (uint8_t *) "[ LEFT ] : Previous");
BSP_LCD_DisplayStringAtLine(13, (uint8_t *) "[ RIGHT ] : Next");
BSP_LCD_DisplayStringAtLine(14, (uint8_t *) "[ SEL ] : Pause/Resume");
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
}
}
else /* Not idle */
{
if (AUDIO_Process() == AUDIO_ERROR_IO)
{
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
}
}
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
break;
case MTP_REENUMERATE:
/* Force MTP Device to re-enumerate */
USBH_ReEnumerate(&hUSBHost);
mtp_demo.state = MTP_DEMO_WAIT;
break;
default:
break;
}
if (Appli_state == APPLICATION_DISCONNECT)
{
Appli_state = APPLICATION_IDLE;
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
MTP_ChangeSelectMode(MTP_SELECT_MENU);
}
mtp_demo.select &= 0x7F;
}
/**
* @brief Manages the menu on the screen.
* @param menu: Menu table
* @param item: Selected item to be highlighted
* @retval None
*/
static void MTP_SelectItem(uint8_t ** menu, uint8_t item)
{
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
switch (item)
{
case 0:
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(19, menu[0]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(20, menu[1]);
BSP_LCD_DisplayStringAtLine(21, menu[2]);
break;
case 1:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(19, menu[0]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(20, menu[1]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(21, menu[2]);
break;
case 2:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(19, menu[0]);
BSP_LCD_DisplayStringAtLine(20, menu[1]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(21, menu[2]);
break;
default:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(19, menu[0]);
BSP_LCD_DisplayStringAtLine(20, menu[1]);
BSP_LCD_DisplayStringAtLine(21, menu[2]);
break;
}
BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
}
/**
* @brief Probes the MTP joystick state.
* @param state: Joystick state
* @retval None
*/
static void MTP_MenuProbeKey(JOYState_TypeDef state)
{
/* Handle Menu inputs */
if ((state == JOY_UP) && (mtp_demo.select > 0))
{
mtp_demo.select--;
}
else if ((state == JOY_DOWN) && (mtp_demo.select < 2))
{
mtp_demo.select++;
}
else if (state == JOY_SEL)
{
if (USBH_MTP_IsReady(&hUSBHost) > 0)
{
mtp_demo.select |= 0x80;
}
}
}
/**
* @brief EXTI line detection callbacks.
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
static JOYState_TypeDef JoyState = JOY_NONE;
static uint32_t debounce_time = 0;
if (GPIO_Pin == GPIO_PIN_8)
{
/* Get the Joystick State */
JoyState = BSP_JOY_GetState();
/* Clear joystick interrupt pending bits */
BSP_IO_ITClear();
if (mtp_select_mode == MTP_SELECT_MENU)
{
MTP_MenuProbeKey(JoyState);
switch (JoyState)
{
case JOY_LEFT:
LCD_LOG_ScrollBack();
break;
case JOY_RIGHT:
LCD_LOG_ScrollForward();
break;
default:
break;
}
}
else if (mtp_select_mode == MTP_PLAYBACK_CONTROL)
{
AUDIO_PlaybackProbeKey(JoyState);
}
}
if (mtp_demo.state == MTP_DEMO_PLAYBACK)
{
if (GPIO_Pin == KEY_BUTTON_PIN)
{
/* Prevent debounce effect for user key */
if ((HAL_GetTick() - debounce_time) > 50)
{
debounce_time = HAL_GetTick();
}
else
{
return;
}
/* Change the selection type */
if (mtp_select_mode == MTP_SELECT_MENU)
{
MTP_ChangeSelectMode(MTP_PLAYBACK_CONTROL);
}
else if (mtp_select_mode == MTP_PLAYBACK_CONTROL)
{
AUDIO_Stop();
}
}
}
}
/**
* @brief Changes the selection mode.
* @param select_mode: Selection mode
* @retval None
*/
static void MTP_ChangeSelectMode(MTP_DEMO_SelectMode select_mode)
{
if (select_mode == MTP_SELECT_MENU)
{
MTP_SelectItem(MTP_main_menu, 0x00);
LCD_ClearTextZone();
LCD_LOG_UpdateDisplay();
}
else if (select_mode == MTP_PLAYBACK_CONTROL)
{
LCD_ClearTextZone();
MTP_SelectItem(MTP_main_menu, 0xFF);
}
mtp_select_mode = select_mode;
mtp_demo.select = 0;
}
/**
* @brief Clears the text zone.
* @param None
* @retval None
*/
static void LCD_ClearTextZone(void)
{
uint8_t i = 0;
for (i = 0; i < 13; i++)
{
BSP_LCD_ClearStringLine(i + 3);
}
}