📄 disp_task.lst
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C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE DISP_TASK
OBJECT MODULE PLACED IN disp_task.obj
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE modules\display\disp_task.c OPTIMIZE(7,SPEED) BROWSE INCDIR(.\modules\syste
-m;.\;.\;.\lib_refd) DEFINE(KEIL) DEBUG OBJECTEXTEND PRINT(.\disp_task.lst) OBJECT(disp_task.obj)
line level source
1 /*C**************************************************************************
2 * NAME: disp_task.c
3 *----------------------------------------------------------------------------
4 * Copyright (c) 2003 Atmel.
5 *----------------------------------------------------------------------------
6 * RELEASE: snd1c-refd-nf-4_0_3
7 * REVISION: 1.13
8 *----------------------------------------------------------------------------
9 * PURPOSE:
10 * This file contains the display task and attached routines
11 *
12 * NOTES:
13 * Global Variables:
14 * - gl_cpt_tick: global tick counter in data space
15 * - gl_sbc_wr_busy: SCSI write busy flag set to OFF in this task
16 * - gl_sbc_rd_busy: SCSI read busy flag set to OFF in thsi task
17 *****************************************************************************/
18
19 /*_____ I N C L U D E S ____________________________________________________*/
20
21 #include "config.h" /* system configuration */
22 #include "board.h" /* board definition */
23 #include "modules\file\file.h" /* file definition */
24 #include "modules\display\disp.h" /* display definition */
25 #include "disp_task.h" /* display task definition */
26 #ifndef CONF_DISPLAY
#define LCD 0
#define LED 1
#define CONF_DISPLAY LCD
#endif
31 #if CONF_DISPLAY == LED
32 #include "modules\display\led.h" /* led definition */
33 #endif
34
35 /*_____ M A C R O S ________________________________________________________*/
36 #if CONF_DISPLAY == LED
37 #define REF_STATE_SONG 0
38 #define REF_STATE_VOICE 1
39 #define REF_STATE_USB 2
40 #define REF_STATE_FORMAT 3
41 #endif
42
43 /*_____ D E F I N I T I O N ________________________________________________*/
44
45 extern data Byte gl_cpt_tick; /* general tick counter */
46 extern bdata bit fs_memory; /* selected file system */
47 extern bit gl_sbc_wr_busy; /* SBC write busy flag */
48 extern bit gl_sbc_rd_busy; /* SBC read busy flag */
49 static bdata bit disp_scroll_on; /* set to TRUE to scroll name */
50 static bdata bit disp_clock_on; /* set to TRUE to start clock */
51 static data Byte disp_sec_cpt; /* second counter */
52 static data Byte disp_min_cpt; /* minute counter */
53 static data char pdata * disp_buffer;
54
C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 2
55
56 static xdata Byte gl_cpt_tick_save; /* tick counter saved value */
57 static xdata Byte disp_sec_cpt_save; /* second counter saved value */
58 static xdata Byte disp_min_cpt_save; /* minute counter saved value */
59
60 static data Byte disp_state; /* task state */
61
62 #if CONF_DISPLAY == LED
63 extern xdata Byte func_state;
64 extern xdata Byte func_timeout; // Time out special function
65 extern xdata Byte ref_state;
66 extern bit playing;
67 extern bit pause;
68 extern bit recording;
69 extern bit connected;
70 extern xdata Byte LED_ON;
71 extern xdata Byte LED_FAST;
72 #endif
73
74 /*_____ D E C L A R A T I O N ______________________________________________*/
75
76
77 /*F**************************************************************************
78 * NAME: disp_task_init
79 *----------------------------------------------------------------------------
80 * PARAMS:
81 *
82 * return:
83 *----------------------------------------------------------------------------
84 * PURPOSE:
85 * Display task initialization
86 *----------------------------------------------------------------------------
87 * EXAMPLE:
88 *----------------------------------------------------------------------------
89 * NOTE:
90 *----------------------------------------------------------------------------
91 * REQUIREMENTS:
92 *****************************************************************************/
93 void disp_task_init (void)
94 {
95 1 disp_scroll_on = FALSE;
96 1 disp_clock_on = FALSE;
97 1 disp_state = DISP_IDLE;
98 1 print_init();
99 1 }
100
101
102 /*F**************************************************************************
103 * NAME: disp_task
104 *----------------------------------------------------------------------------
105 * PARAMS:
106 *
107 * return:
108 *----------------------------------------------------------------------------
109 * PURPOSE:
110 * Display task handling display of clock and scrolling of file name
111 *----------------------------------------------------------------------------
112 * EXAMPLE:
113 *----------------------------------------------------------------------------
114 * NOTE:
115 *----------------------------------------------------------------------------
116 * REQUIREMENTS:
C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 3
117 *****************************************************************************/
118 void disp_task (void)
119 {
120 1 #if CONF_DISPLAY == LED
121 1 led_task();
122 1 #endif
123 1 switch (disp_state)
124 1 {
125 2 case DISP_IDLE:
126 2 {
127 3 #if CONF_DISPLAY != LED
if (gl_sbc_wr_busy || gl_sbc_rd_busy) /* still busy */
{
Lcd_cur_on(); /* blinking cursor for .5 sec */
gl_sbc_wr_busy = FALSE;
gl_sbc_rd_busy = FALSE;
gl_cpt_tick = 0;
disp_state = DISP_MS_BUSY;
}
#endif
137 3 break;
138 3 }
139 2
140 2 case DISP_INIT:
141 2 {
142 3 disp_state = DISP_TICK0;
143 3 gl_cpt_tick = 0;
144 3 disp_buffer = File_get_name();
145 3 if (print_name(disp_buffer) != TRUE) /* test if not short name */
146 3 {
147 4 disp_scroll_on = TRUE; /* activate name scrolling */
148 4 }
149 3 else
150 3 {
151 4 disp_scroll_on = FALSE; /* no scrolling */
152 4 }
153 3 break;
154 3 }
155 2
156 2 case DISP_TICK0:
157 2 {
158 3 if (gl_cpt_tick > DISP_TICK_500) /* 1/2 sec expiration */
159 3 {
160 4 if (disp_scroll_on)
161 4 {
162 5 if (print_name(disp_buffer))
163 5 {
164 6 disp_buffer = File_get_name();
165 6 }
166 5 else
167 5 {
168 6 disp_buffer++;
169 6 }
170 5 }
171 4 disp_state = DISP_TICK1;
172 4 }
173 3 break;
174 3 }
175 2
176 2 case DISP_TICK1:
177 2 {
178 3 if (gl_cpt_tick > DISP_TICK_SEC) /* 1/2 sec expiration */
C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 4
179 3 {
180 4 gl_cpt_tick -= DISP_TICK_SEC;
181 4 if (disp_scroll_on)
182 4 {
183 5 if (print_name(disp_buffer))
184 5 {
185 6 disp_buffer = File_get_name();
186 6 }
187 5 else
188 5 {
189 6 disp_buffer++;
190 6 }
191 5 }
192 4 if (disp_clock_on)
193 4 {
194 5 disp_state = DISP_SEC;
195 5 }
196 4 else
197 4 {
198 5 disp_state = DISP_TICK0;
199 5 }
200 4 }
201 3 break;
202 3 }
203 2
204 2 case DISP_SEC:
205 2 {
206 3 if (disp_sec_cpt == DISP_SEC_MIN) /* 1 min expiration */
207 3 {
208 4 disp_sec_cpt = 0;
209 4 print_sec(disp_sec_cpt);
210 4 disp_state = DISP_MIN;
211 4 }
212 3 else
213 3 {
214 4 disp_sec_cpt++;
215 4 print_sec(disp_sec_cpt);
216 4 disp_state = DISP_TICK0;
217 4 }
218 3 break;
219 3 }
220 2
221 2 case DISP_MIN:
222 2 {
223 3 disp_min_cpt++;
224 3 print_min(disp_min_cpt);
225 3 disp_state = DISP_TICK0;
226 3 break;
227 3 }
228 2
229 2 case DISP_MS_BUSY:
230 2 {
231 3 #if CONF_DISPLAY != LED
if (gl_sbc_wr_busy || gl_sbc_rd_busy) /* still busy */
{
gl_sbc_wr_busy = FALSE;
gl_sbc_rd_busy = FALSE;
gl_cpt_tick = 0;
}
else
{
if (gl_cpt_tick > DISP_TICK_500) /* 1/2 sec expiration */
C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 5
{
Lcd_cur_off();
disp_state = DISP_IDLE;
}
}
#endif
247 3 }
248 2 }
249 1 }
250
251
252 /*F**************************************************************************
253 * NAME: disp_name_start
254 *----------------------------------------------------------------------------
255 * PARAMS:
256 *
257 * return:
258 *----------------------------------------------------------------------------
259 * PURPOSE:
260 * Start name display
261 *----------------------------------------------------------------------------
262 * EXAMPLE:
263 *----------------------------------------------------------------------------
264 * NOTE:
265 *----------------------------------------------------------------------------
266 * REQUIREMENTS:
267 *****************************************************************************/
268 void disp_name_start (void)
269 {
270 1 disp_state = DISP_INIT;
271 1 }
272
273
274 #if CONF_DISPLAY == LED
275 /*F**************************************************************************
276 * NAME: disp_end_of_play
277 *----------------------------------------------------------------------------
278 * PARAMS:
279 *
280 * return:
281 *----------------------------------------------------------------------------
282 * PURPOSE:
283 * Suspend name display
284 *----------------------------------------------------------------------------
285 * EXAMPLE:
286 *----------------------------------------------------------------------------
287 * NOTE:
288 *----------------------------------------------------------------------------
289 * REQUIREMENTS:
290 *****************************************************************************/
291 void disp_end_of_play (void)
292 {
293 1 LED_ON = (8>>ref_state);
294 1 LED_FAST = 3;
295 1 if (recording)
296 1 {
297 2 SHUT_MIC = 1;
298 2 pause=FALSE;
299 2 recording=FALSE;
300 2 }
301 1 else if (playing && ref_state==REF_STATE_VOICE)
302 1 {
C51 COMPILER V7.50 DISP_TASK 09/20/2005 21:47:45 PAGE 6
303 2 func_state=0;
304 2 recording=TRUE;
305 2 LED_FAST=2;
306 2 }
307 1 else func_state=0;
308 1 playing=FALSE;
309 1
310 1 disp_state = DISP_IDLE;
311 1 }
312 #endif
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