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comparison target-utils/libcommon/buzzer.c @ 36:29d0965ebf86

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target-utils: buzzer exercising code written, added to c139explore
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Oct 2016 23:57:15 +0000
parents
children 4be951811791
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35:2942c5ef76ed 36:29d0965ebf86
1 /*
2 * Commands for exercising the Calypso's buzzer output, whatever
3 * actual hardware (piezo buzzer or vibrator) it may be driving
4 * on a given Calypso device.
5 */
6
7 #include <sys/types.h>
8 #include "types.h"
9
10 #define ARMIO_LOAD_TIM (*(volatile u16 *) 0xFFFE4808)
11 #define BUZZ_LIGHT_REG (*(volatile u16 *) 0xFFFE480E)
12 #define BUZZ_LEVEL_REG (*(volatile u16 *) 0xFFFE4812)
13
14 void
15 cmd_buzlev(argbulk)
16 char *argbulk;
17 {
18 char *argv[2];
19 u32 arg;
20
21 if (parse_args(argbulk, 0, 1, argv, 0) < 0)
22 return;
23 if (argv[0]) {
24 arg = strtoul(argv[0], 0, 0);
25 if (arg > 0xFFFF) {
26 printf("ERROR: argument out of range\n");
27 return;
28 }
29 BUZZ_LEVEL_REG = arg;
30 } else
31 printf("%04X\n", BUZZ_LEVEL_REG);
32 }
33
34 void
35 cmd_buz(argbulk)
36 char *argbulk;
37 {
38 char *argv[2];
39 u32 arg;
40 int c;
41
42 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
43 return;
44 arg = strtoul(argv[0], 0, 0);
45 if (arg > 0xFFFF) {
46 printf("ERROR: argument out of range\n");
47 return;
48 }
49 ARMIO_LOAD_TIM = arg;
50 BUZZ_LIGHT_REG = 1;
51 for (;;) {
52 c = serial_in_poll();
53 if (c >= 0)
54 break;
55 }
56 BUZZ_LIGHT_REG = 0;
57 }