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   1 /*
   2  * Copyright © 2012 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 #include <ao.h>
  19 #include <ao_lco.h>
  20 #include <ao_event.h>
  21 #include <ao_seven_segment.h>
  22 #include <ao_quadrature.h>
  23 #include <ao_lco_func.h>
  24 #include <ao_radio_cmac.h>
  25
  26 #define DEBUG   1
  27
  28 #if DEBUG
  29 static uint8_t  ao_lco_debug;
  30 #define PRINTD(...) do { if (!ao_lco_debug) break; printf ("\r%5u %s: ", ao_tick_count, __func__); printf(__VA_ARGS__); flush(); } while(0)
  31 #else
  32 #define PRINTD(...)
  33 #endif
  34
  35 #define AO_LCO_PAD_DIGIT        0
  36 #define AO_LCO_BOX_DIGIT_1      1
  37 #define AO_LCO_BOX_DIGIT_10     2
  38
  39 static uint8_t  ao_lco_min_box, ao_lco_max_box;
  40 static uint8_t  ao_lco_mutex;
  41 static uint8_t  ao_lco_pad;
  42 static uint8_t  ao_lco_box;
  43 static uint8_t  ao_lco_armed;
  44 static uint8_t  ao_lco_firing;
  45 static uint8_t  ao_lco_valid;
  46 static uint8_t  ao_lco_got_channels;
  47 static uint16_t ao_lco_tick_offset;
  48
  49 static struct ao_pad_query      ao_pad_query;
  50
  51 static void
  52 ao_lco_set_pad(void)
  53 {
  54         ao_seven_segment_set(AO_LCO_PAD_DIGIT, ao_lco_pad + 1);
  55 }
  56
  57 static void
  58 ao_lco_set_box(void)
  59 {
  60         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, ao_lco_box % 10);
  61         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, ao_lco_box / 10);
  62 }
  63
  64 #define MASK_SIZE(n)    (((n) + 7) >> 3)
  65 #define MASK_ID(n)      ((n) >> 3)
  66 #define MASK_SHIFT(n)   ((n) & 7)
  67
  68 static uint8_t  ao_lco_box_mask[MASK_SIZE(AO_PAD_MAX_BOXES)];
  69
  70 static uint8_t
  71 ao_lco_box_present(uint8_t box)
  72 {
  73         if (box >= AO_PAD_MAX_BOXES)
  74                 return 0;
  75         return (ao_lco_box_mask[MASK_ID(box)] >> MASK_SHIFT(box)) & 1;
  76 }
  77
  78 static uint8_t
  79 ao_lco_pad_present(uint8_t pad)
  80 {
  81         if (!ao_lco_got_channels || !ao_pad_query.channels)
  82                 return pad == 0;
  83         if (pad >= AO_PAD_MAX_CHANNELS)
  84                 return 0;
  85         return (ao_pad_query.channels >> pad) & 1;
  86 }
  87
  88 static uint8_t
  89 ao_lco_pad_first(void)
  90 {
  91         uint8_t pad;
  92
  93         for (pad = 0; pad < AO_PAD_MAX_CHANNELS; pad++)
  94                 if (ao_lco_pad_present(pad))
  95                         return pad;
  96         return 0;
  97 }
  98
  99 static void
 100 ao_lco_input(void)
 101 {
 102         static struct ao_event  event;
 103         int8_t  dir, new_box, new_pad;
 104
 105         ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 106         ao_lco_set_pad();
 107         ao_lco_set_box();
 108         for (;;) {
 109                 ao_event_get(&event);
 110                 PRINTD("event type %d unit %d value %d\n",
 111                        event.type, event.unit, event.value);
 112                 switch (event.type) {
 113                 case AO_EVENT_QUADRATURE:
 114                         switch (event.unit) {
 115                         case AO_QUADRATURE_PAD:
 116                                 if (!ao_lco_armed) {
 117                                         if (event.value == ao_lco_pad)
 118                                                 break;
 119                                         dir = ((int8_t) event.value - (int8_t) ao_lco_pad) > 0 ? 1 : -1;
 120                                         new_pad = event.value;
 121                                         while (!ao_lco_pad_present(new_pad)) {
 122                                                 new_pad += dir;
 123                                                 if (new_pad > AO_PAD_MAX_CHANNELS)
 124                                                         new_pad = 0;
 125                                                 else if (new_pad < 0)
 126                                                         new_pad = AO_PAD_MAX_CHANNELS - 1;
 127                                                 if (new_pad == ao_lco_pad)
 128                                                         break;
 129                                         }
 130                                         if (new_pad != ao_lco_pad) {
 131                                                 ao_lco_pad = new_pad;
 132                                                 ao_quadrature_count[AO_QUADRATURE_PAD] = ao_lco_pad;
 133                                                 ao_lco_set_pad();
 134                                         }
 135                                 }
 136                                 break;
 137                         case AO_QUADRATURE_BOX:
 138                                 if (!ao_lco_armed) {
 139                                         if (event.value == ao_lco_box)
 140                                                 break;
 141                                         dir = ((int8_t) event.value - (int8_t) ao_lco_box) > 0 ? 1 : -1;
 142                                         new_box = event.value;
 143                                         while (!ao_lco_box_present(new_box)) {
 144                                                 new_box += dir;
 145                                                 if (new_box > ao_lco_max_box)
 146                                                         new_box = ao_lco_min_box;
 147                                                 else if (new_box < ao_lco_min_box)
 148                                                         new_box = ao_lco_min_box;
 149                                                 if (new_box == ao_lco_box)
 150                                                         break;
 151                                         }
 152                                         ao_quadrature_count[AO_QUADRATURE_PAD] = new_box;
 153                                         if (ao_lco_box != new_box) {
 154                                                 ao_lco_box = new_box;
 155                                                 ao_lco_got_channels = 0;
 156                                                 ao_lco_set_box();
 157                                         }
 158                                 }
 159                                 break;
 160                         }
 161                         break;
 162                 case AO_EVENT_BUTTON:
 163                         switch (event.unit) {
 164                         case AO_BUTTON_ARM:
 165                                 ao_lco_armed = event.value;
 166                                 PRINTD("Armed %d\n", ao_lco_armed);
 167                                 ao_wakeup(&ao_lco_armed);
 168                                 break;
 169                         case AO_BUTTON_FIRE:
 170                                 if (ao_lco_armed) {
 171                                         ao_lco_firing = event.value;
 172                                         PRINTD("Firing %d\n", ao_lco_firing);
 173                                         ao_wakeup(&ao_lco_armed);
 174                                 }
 175                                 break;
 176                         }
 177                         break;
 178                 }
 179         }
 180 }
 181
 182 static AO_LED_TYPE      continuity_led[AO_LED_CONTINUITY_NUM] = {
 183 #ifdef AO_LED_CONTINUITY_0
 184         AO_LED_CONTINUITY_0,
 185 #endif
 186 #ifdef AO_LED_CONTINUITY_1
 187         AO_LED_CONTINUITY_1,
 188 #endif
 189 #ifdef AO_LED_CONTINUITY_2
 190         AO_LED_CONTINUITY_2,
 191 #endif
 192 #ifdef AO_LED_CONTINUITY_3
 193         AO_LED_CONTINUITY_3,
 194 #endif
 195 #ifdef AO_LED_CONTINUITY_4
 196         AO_LED_CONTINUITY_4,
 197 #endif
 198 #ifdef AO_LED_CONTINUITY_5
 199         AO_LED_CONTINUITY_5,
 200 #endif
 201 #ifdef AO_LED_CONTINUITY_6
 202         AO_LED_CONTINUITY_6,
 203 #endif
 204 #ifdef AO_LED_CONTINUITY_7
 205         AO_LED_CONTINUITY_7,
 206 #endif
 207 };
 208
 209 static void
 210 ao_lco_update(void)
 211 {
 212         int8_t                  r;
 213         uint8_t                 c;
 214
 215         r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 216         if (r == AO_RADIO_CMAC_OK) {
 217                 c = ao_lco_got_channels;
 218                 ao_lco_got_channels = 1;
 219                 ao_lco_valid = 1;
 220                 if (!c) {
 221                         ao_lco_pad = ao_lco_pad_first();
 222                         ao_lco_set_pad();
 223                 }
 224         } else
 225                 ao_lco_valid = 0;
 226
 227 #if 0
 228         PRINTD("lco_query success arm_status %d i0 %d i1 %d i2 %d i3 %d\n",
 229                query.arm_status,
 230                query.igniter_status[0],
 231                query.igniter_status[1],
 232                query.igniter_status[2],
 233                query.igniter_status[3]);
 234 #endif
 235
 236         ao_wakeup(&ao_pad_query);
 237 }
 238
 239 static void
 240 ao_lco_box_set_present(uint8_t box)
 241 {
 242         if (box >= AO_PAD_MAX_BOXES)
 243                 return;
 244         ao_lco_box_mask[MASK_ID(box)] |= 1 << MASK_SHIFT(box);
 245 }
 246
 247 static void
 248 ao_lco_search(void)
 249 {
 250         uint16_t        tick_offset;
 251         int8_t          r;
 252
 253         ao_lco_min_box = 0xff;
 254         ao_lco_max_box = 0x00;
 255         for (ao_lco_box = 0; ao_lco_box < AO_PAD_MAX_BOXES; ao_lco_box++) {
 256                 if ((ao_lco_box % 10) == 0)
 257                         ao_lco_set_box();
 258                 r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 259                 if (r == AO_RADIO_CMAC_OK) {
 260                         if (ao_lco_box < ao_lco_min_box)
 261                                 ao_lco_min_box = ao_lco_box;
 262                         if (ao_lco_box > ao_lco_max_box)
 263                                 ao_lco_max_box = ao_lco_box;
 264                         ao_lco_box_set_present(ao_lco_box);
 265                 }
 266         }
 267         if (ao_lco_min_box <= ao_lco_max_box)
 268                 ao_lco_box = ao_lco_min_box;
 269         else
 270                 ao_lco_min_box = ao_lco_max_box = ao_lco_box = 0;
 271         ao_lco_valid = 0;
 272         ao_lco_got_channels = 0;
 273         ao_lco_pad = 0;
 274 }
 275
 276 static void
 277 ao_lco_igniter_status(void)
 278 {
 279         uint8_t         c;
 280         uint16_t        delay;
 281
 282         for (;;) {
 283                 ao_sleep(&ao_pad_query);
 284                 if (!ao_lco_valid) {
 285                         ao_led_on(AO_LED_RED);
 286                         ao_led_off(AO_LED_GREEN);
 287                         continue;
 288                 }
 289                 PRINTD("RSSI %d\n", ao_radio_cmac_rssi);
 290                 if (ao_radio_cmac_rssi < -90)
 291                         ao_led_on(AO_LED_RED|AO_LED_GREEN);
 292                 else {
 293                         ao_led_on(AO_LED_GREEN);
 294                         ao_led_off(AO_LED_RED);
 295                 }
 296                 if (ao_pad_query.arm_status)
 297                         ao_led_on(AO_LED_REMOTE_ARM);
 298                 else
 299                         ao_led_off(AO_LED_REMOTE_ARM);
 300                 for (c = 0; c < AO_LED_CONTINUITY_NUM; c++) {
 301                         uint8_t status;
 302
 303                         if (ao_pad_query.channels & (1 << c))
 304                                 status = ao_pad_query.igniter_status[c];
 305                         else
 306                                 status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN;
 307                         if (status == AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN)
 308                                 ao_led_on(continuity_led[c]);
 309                         else
 310                                 ao_led_off(continuity_led[c]);
 311                 }
 312         }
 313 }
 314
 315 static void
 316 ao_lco_arm_warn(void)
 317 {
 318         for (;;) {
 319                 while (!ao_lco_armed)
 320                         ao_sleep(&ao_lco_armed);
 321                 ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 322                 ao_delay(AO_MS_TO_TICKS(200));
 323         }
 324 }
 325
 326 static struct ao_task ao_lco_input_task;
 327 static struct ao_task ao_lco_monitor_task;
 328 static struct ao_task ao_lco_arm_warn_task;
 329 static struct ao_task ao_lco_igniter_status_task;
 330
 331 static void
 332 ao_lco_monitor(void)
 333 {
 334         uint16_t                delay;
 335
 336         ao_lco_search();
 337         ao_add_task(&ao_lco_input_task, ao_lco_input, "lco input");
 338         ao_add_task(&ao_lco_arm_warn_task, ao_lco_arm_warn, "lco arm warn");
 339         ao_add_task(&ao_lco_igniter_status_task, ao_lco_igniter_status, "lco igniter status");
 340         for (;;) {
 341                 PRINTD("monitor armed %d firing %d offset %d\n",
 342                        ao_lco_armed, ao_lco_firing, ao_lco_tick_offset);
 343
 344                 if (ao_lco_armed && ao_lco_firing) {
 345                         PRINTD("Firing box %d pad %d: valid %d\n",
 346                                ao_lco_box, ao_lco_pad, ao_lco_valid);
 347                         if (!ao_lco_valid)
 348                                 ao_lco_update();
 349                         if (ao_lco_valid)
 350                                 ao_lco_ignite(ao_lco_box, 1 << ao_lco_pad, ao_lco_tick_offset);
 351                 } else if (ao_lco_armed) {
 352                         PRINTD("Arming box %d pad %d\n",
 353                                ao_lco_box, ao_lco_pad);
 354                         if (!ao_lco_valid)
 355                                 ao_lco_update();
 356                         ao_lco_arm(ao_lco_box, 1 << ao_lco_pad, ao_lco_tick_offset);
 357                         ao_lco_update();
 358                 } else {
 359                         ao_lco_update();
 360                 }
 361                 if (ao_lco_armed && ao_lco_firing)
 362                         delay = AO_MS_TO_TICKS(100);
 363                 else
 364                         delay = AO_SEC_TO_TICKS(1);
 365                 ao_sleep_for(&ao_lco_armed, delay);
 366         }
 367 }
 368
 369 #if DEBUG
 370 void
 371 ao_lco_set_debug(void)
 372 {
 373         ao_cmd_decimal();
 374         if (ao_cmd_status == ao_cmd_success)
 375                 ao_lco_debug = ao_cmd_lex_i != 0;
 376 }
 377
 378 __code struct ao_cmds ao_lco_cmds[] = {
 379         { ao_lco_set_debug,     "D <0 off, 1 on>\0Debug" },
 380         { 0, NULL }
 381 };
 382 #endif
 383
 384 void
 385 ao_lco_init(void)
 386 {
 387         ao_add_task(&ao_lco_monitor_task, ao_lco_monitor, "lco monitor");
 388 #if DEBUG
 389         ao_cmd_register(&ao_lco_cmds[0]);
 390 #endif
 391 }