| 1 | #include <stdarg.h> |
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| 2 | #include <stdio.h> |
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| 3 | #include <stdlib.h> |
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| 4 | |
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| 5 | #include <cwiid.h> |
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| 6 | |
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| 7 | /* This is a sample program written to demonstrate basic CWiid libwiimote |
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| 8 | * usage, until _actual_ documentation can be written. It's quick and dirty |
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| 9 | * has a horrible interface, but it's sparce enough to pick out the important |
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| 10 | * parts easily. For examples of read and write code, see wmgui. Speaker |
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| 11 | * support is "experimental" (read: bad) enough to be disabled. The beginnings |
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| 12 | * of a speaker output function are in libwiimote source. */ |
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| 13 | /* Note: accelerometer (including nunchuk) and IR outputs produce a |
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| 14 | * lot of data - the purpose of this program is demonstration, not good |
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| 15 | * interface, and it shows. */ |
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| 16 | |
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| 17 | cwiid_mesg_callback_t cwiid_callback; |
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| 18 | |
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| 19 | #define toggle_bit(bf,b) \ |
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| 20 | (bf) = ((bf) & b) \ |
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| 21 | ? ((bf) & ~(b)) \ |
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| 22 | : ((bf) | (b)) |
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| 23 | |
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| 24 | void set_led_state(cwiid_wiimote_t *wiimote, unsigned char led_state); |
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| 25 | void set_rpt_mode(cwiid_wiimote_t *wiimote, unsigned char rpt_mode); |
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| 26 | |
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| 27 | cwiid_err_t err; |
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| 28 | void err(int id, const char *s, ...) |
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| 29 | { |
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| 30 | va_list ap; |
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| 31 | |
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| 32 | va_start(ap, s); |
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| 33 | printf("%d:", id); |
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| 34 | vprintf(s, ap); |
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| 35 | printf("\n"); |
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| 36 | va_end(ap); |
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| 37 | } |
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| 38 | |
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| 39 | /* wiimote handle */ |
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| 40 | cwiid_wiimote_t *wiimote; |
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| 41 | |
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| 42 | int main(int argc, char *argv[]) |
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| 43 | { |
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| 44 | bdaddr_t bdaddr; /* bluetooth device address */ |
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| 45 | int cwiid_id; /* wiimote id: useful for handling multiple wiimotes |
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| 46 | with a single callback */ |
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| 47 | unsigned char led_state = 0; |
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| 48 | unsigned char rpt_mode = 0; |
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| 49 | unsigned char rumble = 0; |
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| 50 | int exit = 0; |
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| 51 | |
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| 52 | cwiid_set_err(err); |
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| 53 | |
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| 54 | /* Connect to any wiimote */ |
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| 55 | bdaddr = *BDADDR_ANY; |
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| 56 | /* Connect to address in string CWIID_BDADDR */ |
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| 57 | /* str2ba(CWIID_BDADDR, &bdaddr); */ |
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| 58 | |
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| 59 | /* Connect to the wiimote */ |
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| 60 | printf("Put Wiimote in discoverable mode now (press 1+2)...\n"); |
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| 61 | if (!(wiimote = cwiid_connect(&bdaddr, cwiid_callback, &cwiid_id))) { |
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| 62 | fprintf(stderr, "Unable to connect to wiimote\n"); |
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| 63 | return -1; |
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| 64 | } |
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| 65 | |
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| 66 | /* Menu */ |
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| 67 | printf("1: toggle LED 1\n" |
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| 68 | "2: toggle LED 2\n" |
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| 69 | "3: toggle LED 3\n" |
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| 70 | "4: toggle LED 4\n" |
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| 71 | "a: toggle accelerometer output\n" |
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| 72 | "b: toggle button output\n" |
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| 73 | "e: toggle extension output\n" |
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| 74 | "i: toggle ir output\n" |
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| 75 | "r: toggle rumble\n" |
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| 76 | "s: request status message (use t to turn on output)\n" |
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| 77 | "t: toggle status output\n" |
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| 78 | "x: exit\n"); |
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| 79 | |
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| 80 | while (!exit) { |
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| 81 | switch (getchar()) { |
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| 82 | case '1': |
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| 83 | toggle_bit(led_state, CWIID_LED1_ON); |
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| 84 | set_led_state(wiimote, led_state); |
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| 85 | break; |
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| 86 | case '2': |
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| 87 | toggle_bit(led_state, CWIID_LED2_ON); |
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| 88 | set_led_state(wiimote, led_state); |
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| 89 | break; |
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| 90 | case '3': |
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| 91 | toggle_bit(led_state, CWIID_LED3_ON); |
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| 92 | set_led_state(wiimote, led_state); |
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| 93 | break; |
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| 94 | case '4': |
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| 95 | toggle_bit(led_state, CWIID_LED4_ON); |
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| 96 | set_led_state(wiimote, led_state); |
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| 97 | break; |
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| 98 | case 'a': |
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| 99 | toggle_bit(rpt_mode, CWIID_RPT_ACC); |
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| 100 | set_rpt_mode(wiimote, rpt_mode); |
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| 101 | break; |
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| 102 | case 'b': |
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| 103 | toggle_bit(rpt_mode, CWIID_RPT_BTN); |
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| 104 | set_rpt_mode(wiimote, rpt_mode); |
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| 105 | break; |
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| 106 | case 'e': |
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| 107 | /* CWIID_RPT_EXT is actually |
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| 108 | * CWIID_RPT_NUNCHUK | CWIID_RPT_CLASSIC */ |
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| 109 | toggle_bit(rpt_mode, CWIID_RPT_EXT); |
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| 110 | set_rpt_mode(wiimote, rpt_mode); |
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| 111 | break; |
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| 112 | case 'i': |
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| 113 | /* libwiimote picks the highest quality IR mode available with the |
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| 114 | * other options selected (not including as-yet-undeciphered |
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| 115 | * interleaved mode */ |
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| 116 | toggle_bit(rpt_mode, CWIID_RPT_IR); |
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| 117 | set_rpt_mode(wiimote, rpt_mode); |
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| 118 | break; |
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| 119 | case 'r': |
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| 120 | toggle_bit(rumble, 1); |
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| 121 | if (cwiid_command(wiimote, CWIID_CMD_RUMBLE, rumble)) { |
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| 122 | fprintf(stderr, "Error setting rumble\n"); |
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| 123 | } |
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| 124 | break; |
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| 125 | case 's': |
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| 126 | if (cwiid_command(wiimote, CWIID_CMD_STATUS, 0)) { |
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| 127 | fprintf(stderr, "Error requesting status message\n"); |
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| 128 | } |
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| 129 | break; |
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| 130 | case 't': |
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| 131 | toggle_bit(rpt_mode, CWIID_RPT_STATUS); |
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| 132 | set_rpt_mode(wiimote, rpt_mode); |
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| 133 | break; |
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| 134 | case 'x': |
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| 135 | exit = -1; |
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| 136 | break; |
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| 137 | case '\n': |
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| 138 | break; |
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| 139 | default: |
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| 140 | fprintf(stderr, "invalid option\n"); |
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| 141 | } |
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| 142 | } |
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| 143 | |
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| 144 | if (cwiid_disconnect(wiimote)) { |
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| 145 | fprintf(stderr, "Error on wiimote disconnect\n"); |
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| 146 | return -1; |
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| 147 | } |
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| 148 | |
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| 149 | return 0; |
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| 150 | } |
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| 151 | |
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| 152 | void set_led_state(cwiid_wiimote_t *wiimote, unsigned char led_state) |
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| 153 | { |
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| 154 | if (cwiid_command(wiimote, CWIID_CMD_LED, led_state)) { |
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| 155 | fprintf(stderr, "Error setting LEDs \n"); |
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| 156 | } |
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| 157 | } |
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| 158 | |
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| 159 | void set_rpt_mode(cwiid_wiimote_t *wiimote, unsigned char rpt_mode) |
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| 160 | { |
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| 161 | if (cwiid_command(wiimote, CWIID_CMD_RPT_MODE, rpt_mode)) { |
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| 162 | fprintf(stderr, "Error setting report mode\n"); |
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| 163 | } |
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| 164 | } |
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| 165 | |
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| 166 | /* Prototype cwiid_callback with cwiid_callback_t, define it with the actual |
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| 167 | * type - this will cause a compile error (rather than some undefined bizarre |
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| 168 | * behavior) if cwiid_callback_t changes */ |
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| 169 | /* cwiid_mesg_callback_t has undergone a few changes lately, hopefully this |
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| 170 | * will be the last. Some programs need to know which messages were received |
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| 171 | * simultaneously (e.g. for correlating accelerometer and IR data), and the |
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| 172 | * sequence number mechanism used previously proved cumbersome, so we just |
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| 173 | * pass an array of messages, all of which were received at the same time. |
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| 174 | * The id is to distinguish between multiple wiimotes using the same callback. |
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| 175 | * */ |
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| 176 | void cwiid_callback(int id, int mesg_count, union cwiid_mesg *mesg[]) |
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| 177 | { |
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| 178 | int i, j; |
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| 179 | int valid_source; |
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| 180 | |
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| 181 | for (i=0; i < mesg_count; i++) |
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| 182 | { |
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| 183 | switch (mesg[i]->type) { |
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| 184 | case CWIID_MESG_STATUS: |
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| 185 | printf("Status Report: battery=%d extension=", |
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| 186 | mesg[i]->status_mesg.battery); |
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| 187 | switch (mesg[i]->status_mesg.extension) { |
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| 188 | case CWIID_EXT_NONE: |
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| 189 | printf("none"); |
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| 190 | break; |
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| 191 | case CWIID_EXT_NUNCHUK: |
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| 192 | printf("Nunchuk"); |
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| 193 | break; |
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| 194 | case CWIID_EXT_CLASSIC: |
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| 195 | printf("Classic Controller"); |
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| 196 | break; |
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| 197 | default: |
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| 198 | printf("Unknown Extension"); |
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| 199 | break; |
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| 200 | } |
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| 201 | printf("\n"); |
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| 202 | break; |
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| 203 | case CWIID_MESG_BTN: |
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| 204 | printf("Button Report: %.4X\n", mesg[i]->btn_mesg.buttons); |
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| 205 | break; |
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| 206 | case CWIID_MESG_ACC: |
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| 207 | printf("Acc Report: x=%d, y=%d, z=%d\n", mesg[i]->acc_mesg.x, |
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| 208 | mesg[i]->acc_mesg.y, |
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| 209 | mesg[i]->acc_mesg.z); |
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| 210 | break; |
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| 211 | case CWIID_MESG_IR: |
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| 212 | printf("IR Report: "); |
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| 213 | valid_source = 0; |
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| 214 | for (j = 0; j < CWIID_IR_SRC_COUNT; j++) { |
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| 215 | if (mesg[i]->ir_mesg.src[j].valid) { |
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| 216 | valid_source = 1; |
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| 217 | printf("(%d,%d) ", mesg[i]->ir_mesg.src[j].x, |
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| 218 | mesg[i]->ir_mesg.src[j].y); |
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| 219 | } |
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| 220 | } |
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| 221 | if (!valid_source) { |
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| 222 | printf("no sources detected"); |
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| 223 | } |
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| 224 | printf("\n"); |
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| 225 | break; |
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| 226 | case CWIID_MESG_NUNCHUK: |
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| 227 | printf("Nunchuk Report: btns=%.2X stick=(%d,%d) acc.x=%d acc.y=%d " |
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| 228 | "acc.z=%d\n", mesg[i]->nunchuk_mesg.buttons, |
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| 229 | mesg[i]->nunchuk_mesg.stick_x, |
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| 230 | mesg[i]->nunchuk_mesg.stick_y, mesg[i]->nunchuk_mesg.acc_x, |
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| 231 | mesg[i]->nunchuk_mesg.acc_y, mesg[i]->nunchuk_mesg.acc_z); |
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| 232 | break; |
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| 233 | case CWIID_MESG_CLASSIC: |
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| 234 | printf("Classic Report: btns=%.4X l_stick=(%d,%d) r_stick=(%d,%d) " |
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| 235 | "l=%d r=%d\n", mesg[i]->classic_mesg.buttons, |
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| 236 | mesg[i]->classic_mesg.l_stick_x, |
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| 237 | mesg[i]->classic_mesg.l_stick_y, |
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| 238 | mesg[i]->classic_mesg.r_stick_x, |
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| 239 | mesg[i]->classic_mesg.r_stick_y, |
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| 240 | mesg[i]->classic_mesg.l, mesg[i]->classic_mesg.r); |
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| 241 | break; |
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| 242 | case CWIID_MESG_ERROR: |
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| 243 | if (cwiid_disconnect(wiimote)) { |
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| 244 | fprintf(stderr, "Error on wiimote disconnect\n"); |
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| 245 | exit(-1); |
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| 246 | } |
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| 247 | exit(0); |
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| 248 | break; |
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| 249 | default: |
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| 250 | printf("Unknown Report"); |
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| 251 | break; |
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| 252 | } |
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| 253 | } |
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| 254 | } |
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| 255 | |
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