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[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [cmds/] [touch.c] - Blame information for rev 613

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Line No. Rev Author Line
1 2 marcus.erl
#include "common.h"
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#include "support.h"
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#include "spi.h"
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5 406 julius
int touch_cmd(int argc, char *argv[])
6 2 marcus.erl
{
7 406 julius
        unsigned long x, y, z1, z2;
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        float res;
9 2 marcus.erl
 
10 406 julius
        if (argc == 0) {
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                printf("usage:  -r  read coordinates\n");
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                printf
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                    ("        -c  read coordinates in a loop (press any key to exit)\n");
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        } else if (argc == 1) {
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                if (!strcmp(argv[0], "-r")) {
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                        spi_init(0, 1000000, 21, 0, 1, 0);
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                        printf("X = %.3lx\n", spi_xmit(0xd3l << 13) & 0xfff);
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                        printf("Y = %.3lx\n", spi_xmit(0x93l << 13) & 0xfff);
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                } else if (!strcmp(argv[0], "-c")) {
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                        spi_init(0, 1000000, 21, 0, 1, 0);
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                        while (1) {
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                                x = spi_xmit(0xd3l << 13) & 0xfff;
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                                z1 = spi_xmit(0xb3l << 13) & 0xfff;
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                                z2 = spi_xmit(0xc3l << 13) & 0xfff;
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                                res = (z2 / z1) - 1;
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                                res = ((float)x * res) / 4096;
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                                if ((int)res < 20) {
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                                        y = spi_xmit(0x93l << 13) & 0xfff;
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                                        printf("X = %.3lx\n", x);
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                                        printf("Y = %.3lx\n\n", y);
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                                }
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                                if (testc())
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                                        break;
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                        }
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                }
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        } else {
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                printf("usage:  -r  read coordinates\n");
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                printf
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                    ("        -c  read coordinates in a loop (press any key to exit)\n");
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        }
41 2 marcus.erl
 
42 406 julius
        return 0;
43 2 marcus.erl
}
44 406 julius
 
45
void module_touch_init(void)
46 2 marcus.erl
{
47 406 julius
        register_command("touch", "", "touch screen utility", touch_cmd);
48 2 marcus.erl
}

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