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comparison target-utils/c139explore/backlight.c @ 949:df1dccc0ef9c

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c139explore: GPIO init and backlight on/off control implemented
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 04 Nov 2015 00:46:36 +0000
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948:c73516dd50bb 949:df1dccc0ef9c
1 #include <sys/types.h>
2 #include <string.h>
3 #include "types.h"
4 #include "abbdefs.h"
5
6 #define GPIO_OUT_REG (*(volatile u16 *) 0xfffe4802)
7 #define BACKLIGHT_GPIO_MASK 0x0002
8
9 #define AUXLED_KPBL_OFF 0x000
10 #define AUXLED_KPBL_ON 0x002
11
12 void
13 cmd_dbl(argbulk)
14 char *argbulk;
15 {
16 char *argv[2];
17
18 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
19 return;
20 if (!strcmp(argv[0], "on"))
21 GPIO_OUT_REG |= BACKLIGHT_GPIO_MASK;
22 else if (!strcmp(argv[0], "off"))
23 GPIO_OUT_REG &= ~BACKLIGHT_GPIO_MASK;
24 else
25 printf("ERROR: \"on\" or \"off\" argument expected\n");
26 }
27
28 void
29 cmd_kpbl(argbulk)
30 char *argbulk;
31 {
32 char *argv[2];
33
34 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
35 return;
36 if (!strcmp(argv[0], "on"))
37 abb_reg_write(AUXLED, AUXLED_KPBL_ON);
38 else if (!strcmp(argv[0], "off"))
39 abb_reg_write(AUXLED, AUXLED_KPBL_OFF);
40 else
41 printf("ERROR: \"on\" or \"off\" argument expected\n");
42 }