FreeCalypso > hg > freecalypso-sw

annotate target-utils/c139explore/backlight.c @ 950:cd34e0d534b9

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c139explore: LCD output implemented, does not work
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 04 Nov 2015 01:43:44 +0000
parents df1dccc0ef9c
children
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rev   line source
949
df1dccc0ef9c c139explore: GPIO init and backlight on/off control implemented
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1 #include <sys/types.h>
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2 #include <string.h>
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3 #include "types.h"
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4 #include "abbdefs.h"
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5
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6 #define GPIO_OUT_REG (*(volatile u16 *) 0xfffe4802)
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7 #define BACKLIGHT_GPIO_MASK 0x0002
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8
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9 #define AUXLED_KPBL_OFF 0x000
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10 #define AUXLED_KPBL_ON 0x002
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11
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12 void
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13 cmd_dbl(argbulk)
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14 char *argbulk;
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15 {
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16 char *argv[2];
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17
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18 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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19 return;
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20 if (!strcmp(argv[0], "on"))
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21 GPIO_OUT_REG |= BACKLIGHT_GPIO_MASK;
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22 else if (!strcmp(argv[0], "off"))
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23 GPIO_OUT_REG &= ~BACKLIGHT_GPIO_MASK;
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24 else
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25 printf("ERROR: \"on\" or \"off\" argument expected\n");
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26 }
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27
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28 void
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29 cmd_kpbl(argbulk)
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30 char *argbulk;
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31 {
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32 char *argv[2];
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33
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34 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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35 return;
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36 if (!strcmp(argv[0], "on"))
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37 abb_reg_write(AUXLED, AUXLED_KPBL_ON);
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38 else if (!strcmp(argv[0], "off"))
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39 abb_reg_write(AUXLED, AUXLED_KPBL_OFF);
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40 else
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41 printf("ERROR: \"on\" or \"off\" argument expected\n");
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42 }