| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | #include "input.h" |
| 6 | #include "../linux/in_evdev.h" |
| 7 | |
| 8 | typedef struct |
| 9 | { |
| 10 | int drv_id; |
| 11 | void *drv_data; |
| 12 | int *binds; |
| 13 | char *name; |
| 14 | int probed:1; |
| 15 | int ignore:1; |
| 16 | } in_dev_t; |
| 17 | |
| 18 | #define IN_MAX_DEVS 10 |
| 19 | |
| 20 | static in_dev_t in_devices[IN_MAX_DEVS]; |
| 21 | static int in_dev_count = 0; |
| 22 | |
| 23 | static int in_bind_count(int drv_id) |
| 24 | { |
| 25 | int count = 0; |
| 26 | switch (drv_id) { |
| 27 | case IN_DRVID_EVDEV: |
| 28 | count = in_evdev_bind_count(); |
| 29 | break; |
| 30 | } |
| 31 | if (count <= 0) |
| 32 | printf("input: failed to get bind count for drv %d\n", drv_id); |
| 33 | |
| 34 | return count; |
| 35 | } |
| 36 | |
| 37 | static int *in_alloc_binds(int drv_id) |
| 38 | { |
| 39 | int count, *ret; |
| 40 | |
| 41 | count = in_bind_count(drv_id); |
| 42 | if (count <= 0) { |
| 43 | printf("input: failed to get bind count for drv %d\n", drv_id); |
| 44 | return NULL; |
| 45 | } |
| 46 | |
| 47 | ret = malloc(count * sizeof(*ret)); |
| 48 | return ret; |
| 49 | } |
| 50 | |
| 51 | static void in_free(in_dev_t *dev) |
| 52 | { |
| 53 | if (dev->probed) { |
| 54 | switch (dev->drv_id) { |
| 55 | case IN_DRVID_EVDEV: |
| 56 | in_evdev_free(dev->drv_data); |
| 57 | break; |
| 58 | } |
| 59 | } |
| 60 | dev->probed = 0; |
| 61 | dev->drv_data = NULL; |
| 62 | free(dev->name); |
| 63 | dev->name = NULL; |
| 64 | free(dev->binds); |
| 65 | dev->binds = NULL; |
| 66 | } |
| 67 | |
| 68 | /* to be called by drivers */ |
| 69 | void in_register(const char *nname, int drv_id, void *drv_data) |
| 70 | { |
| 71 | int i, dupe_count = 0, *binds; |
| 72 | char name[256], *name_end, *tmp; |
| 73 | |
| 74 | strncpy(name, nname, sizeof(name)); |
| 75 | name[sizeof(name)-12] = 0; |
| 76 | name_end = name + strlen(name); |
| 77 | |
| 78 | for (i = 0; i < in_dev_count; i++) |
| 79 | { |
| 80 | if (in_devices[i].name == NULL) |
| 81 | continue; |
| 82 | if (strcmp(in_devices[i].name, name) == 0) |
| 83 | { |
| 84 | if (in_devices[i].probed) { |
| 85 | dupe_count++; |
| 86 | sprintf(name_end, " [%d]", dupe_count); |
| 87 | continue; |
| 88 | } |
| 89 | goto update; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | if (i >= IN_MAX_DEVS) |
| 94 | { |
| 95 | /* try to find unused device */ |
| 96 | for (i = 0; i < IN_MAX_DEVS; i++) |
| 97 | if (!in_devices[i].probed) break; |
| 98 | if (i >= IN_MAX_DEVS) { |
| 99 | printf("input: too many devices, can't add %s\n", name); |
| 100 | return; |
| 101 | } |
| 102 | in_free(&in_devices[i]); |
| 103 | } |
| 104 | |
| 105 | tmp = strdup(name); |
| 106 | if (tmp == NULL) |
| 107 | return; |
| 108 | |
| 109 | binds = in_alloc_binds(drv_id); |
| 110 | if (binds == NULL) { |
| 111 | free(tmp); |
| 112 | return; |
| 113 | } |
| 114 | |
| 115 | in_devices[i].name = tmp; |
| 116 | in_devices[i].binds = binds; |
| 117 | if (i + 1 > in_dev_count) |
| 118 | in_dev_count = i + 1; |
| 119 | |
| 120 | printf("input: new device #%d \"%s\"\n", i, name); |
| 121 | update: |
| 122 | in_devices[i].probed = 1; |
| 123 | in_devices[i].drv_id = drv_id; |
| 124 | in_devices[i].drv_data = drv_data; |
| 125 | } |
| 126 | |
| 127 | void in_probe(void) |
| 128 | { |
| 129 | int i; |
| 130 | for (i = 0; i < in_dev_count; i++) |
| 131 | in_devices[i].probed = 0; |
| 132 | |
| 133 | in_evdev_probe(); |
| 134 | |
| 135 | /* get rid of devs without binds and probes */ |
| 136 | for (i = 0; i < in_dev_count; i++) { |
| 137 | if (!in_devices[i].probed && in_devices[i].binds == NULL) { |
| 138 | in_dev_count--; |
| 139 | if (i < in_dev_count) { |
| 140 | free(in_devices[i].name); |
| 141 | memmove(&in_devices[i], &in_devices[i+1], |
| 142 | (in_dev_count - i) * sizeof(in_devices[0])); |
| 143 | } |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | void in_clear_binds(const char *devname) |
| 149 | { |
| 150 | /* int count; |
| 151 | |
| 152 | count = in_bind_count(drv_id); |
| 153 | if (count <= 0) { |
| 154 | printf("input: failed to get bind count for drv %d\n", dev->drv_id); |
| 155 | return NULL; |
| 156 | } |
| 157 | */ |
| 158 | } |
| 159 | |
| 160 | int in_update(void) |
| 161 | { |
| 162 | int i, result = 0; |
| 163 | |
| 164 | for (i = 0; i < in_dev_count; i++) { |
| 165 | if (in_devices[i].probed && in_devices[i].binds != NULL) { |
| 166 | switch (in_devices[i].drv_id) { |
| 167 | case IN_DRVID_EVDEV: |
| 168 | result |= in_evdev_update(in_devices[i].drv_data, in_devices[i].binds); |
| 169 | break; |
| 170 | } |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | return result; |
| 175 | } |
| 176 | |
| 177 | static void **in_collect_drvdata(int drv_id, int *count) |
| 178 | { |
| 179 | static void *data[IN_MAX_DEVS]; |
| 180 | int i; |
| 181 | |
| 182 | for (*count = i = 0; i < in_dev_count; i++) { |
| 183 | if (in_devices[i].drv_id == drv_id && in_devices[i].probed) |
| 184 | data[(*count)++] = in_devices[i].drv_data; |
| 185 | } |
| 186 | |
| 187 | return data; |
| 188 | } |
| 189 | |
| 190 | void in_set_blocking(int is_blocking) |
| 191 | { |
| 192 | int i; |
| 193 | |
| 194 | for (i = 0; i < in_dev_count; i++) { |
| 195 | if (in_devices[i].probed) { |
| 196 | switch (in_devices[i].drv_id) { |
| 197 | case IN_DRVID_EVDEV: |
| 198 | in_evdev_set_blocking(in_devices[i].drv_data, is_blocking); |
| 199 | break; |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | /* |
| 206 | * update with wait for a press, return keycode |
| 207 | * only can use 1 drv here.. |
| 208 | */ |
| 209 | int in_update_keycode(int *dev_id, int *is_down) |
| 210 | { |
| 211 | int result = 0; |
| 212 | #ifdef IN_EVDEV |
| 213 | void **data; |
| 214 | int i, id = 0, count = 0; |
| 215 | |
| 216 | data = in_collect_drvdata(IN_DRVID_EVDEV, &count); |
| 217 | if (count == 0) { |
| 218 | /* don't deadlock, fail */ |
| 219 | printf("input: failed to find devices to read\n"); |
| 220 | exit(1); |
| 221 | } |
| 222 | |
| 223 | result = in_evdev_update_keycode(data, count, &id, is_down); |
| 224 | |
| 225 | if (dev_id != NULL) { |
| 226 | for (i = id; i < in_dev_count; i++) { |
| 227 | if (in_devices[i].drv_data == data[id]) { |
| 228 | *dev_id = i; |
| 229 | break; |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | #else |
| 234 | #error no menu read handlers |
| 235 | #endif |
| 236 | |
| 237 | return result; |
| 238 | } |
| 239 | |
| 240 | /* |
| 241 | * same as above, only return bitfield of BTN_* |
| 242 | */ |
| 243 | int in_update_menu(void) |
| 244 | { |
| 245 | static int keys_active = 0; |
| 246 | int keys_old = keys_active; |
| 247 | |
| 248 | while (1) |
| 249 | { |
| 250 | int code, is_down = 0; |
| 251 | code = in_update_keycode(NULL, &is_down); |
| 252 | #ifdef IN_EVDEV |
| 253 | code = in_evdev_menu_translate(code); |
| 254 | #endif |
| 255 | if (code == 0) continue; |
| 256 | |
| 257 | if (is_down) |
| 258 | keys_active |= code; |
| 259 | else |
| 260 | keys_active &= ~code; |
| 261 | |
| 262 | if (keys_old != keys_active) |
| 263 | break; |
| 264 | } |
| 265 | |
| 266 | return keys_active; |
| 267 | } |
| 268 | |
| 269 | const char *in_get_key_name(int dev_id, int keycode) |
| 270 | { |
| 271 | if (dev_id < 0 || dev_id >= IN_MAX_DEVS) |
| 272 | return "Unkn0"; |
| 273 | switch (in_devices[dev_id].drv_id) { |
| 274 | case IN_DRVID_EVDEV: |
| 275 | return in_evdev_get_key_name(keycode); |
| 276 | } |
| 277 | |
| 278 | return "Unkn1"; |
| 279 | } |
| 280 | |
| 281 | void in_init(void) |
| 282 | { |
| 283 | memset(in_devices, 0, sizeof(in_devices)); |
| 284 | in_dev_count = 0; |
| 285 | } |
| 286 | |
| 287 | int main(void) |
| 288 | { |
| 289 | int ret; |
| 290 | |
| 291 | in_init(); |
| 292 | in_probe(); |
| 293 | |
| 294 | in_set_blocking(1); |
| 295 | |
| 296 | #if 1 |
| 297 | while (1) { |
| 298 | int dev = 0, down; |
| 299 | ret = in_update_keycode(&dev, &down); |
| 300 | printf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret)); |
| 301 | } |
| 302 | #else |
| 303 | while (1) { |
| 304 | ret = in_update_menu(); |
| 305 | printf("%08x\n", ret); |
| 306 | } |
| 307 | #endif |
| 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |