Markus Koch
5ebb104e19
Note: Special commands are currently broken in backwards mode! Do not use them when the buffer is not empty!
79 lines
1.4 KiB
C
79 lines
1.4 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stropts.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#define IOCTL_SET_MODE 42
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enum lw35ioc_state {PASSIVE = 0, INIT, PROG_KBD, PROG_PRI, BYPASS, ACTIVE, STATE_COUNT};
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int f;
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static void help(int argc, char *argv[])
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{
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fprintf(stderr,
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"usage: %s <command>\n\n"
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" command: set-mode <mode>\n"
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" mode: passive, active, rfu-kbd, rfu-pri, bypass\n",
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argv[0]);
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}
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static int set_mode(int argc, char *argv[])
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{
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int mode = -1;
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if (argc < 3) {
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help(argc, argv);
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return 10;
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}
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if (!strcmp(argv[2], "passive"))
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mode = PASSIVE;
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else if (!strcmp(argv[2], "rfu-kbd"))
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mode = PROG_KBD;
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else if (!strcmp(argv[2], "rfu-pri"))
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mode = PROG_PRI;
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else if (!strcmp(argv[2], "bypass"))
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mode = BYPASS;
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else if (!strcmp(argv[2], "active"))
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mode = ACTIVE;
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else if (!strcmp(argv[2], "init"))
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mode = INIT;
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if (mode == -1) {
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fprintf(stderr, "Error: Invalid mode.\n");
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return 10;
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}
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ioctl(f, IOCTL_SET_MODE, mode);
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return 0;
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}
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int main(int argc, char *argv[])
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{
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int ret;
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if (argc < 2) {
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help(argc, argv);
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return 1;
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}
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f = open("/dev/lw35", O_RDWR);
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if (f == -1) {
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fprintf(stderr, "Error opening lw35ioc device.\n");
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return 3;
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}
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if (!strcmp(argv[1], "set-mode")) {
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ret = set_mode(argc, argv);
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} else {
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fprintf(stderr, "Unknown command.\n");
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ret = 2;
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}
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close(f);
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return ret;
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}
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