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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_pad;
  41 static uint8_t  ao_lco_box;
  42 static uint8_t  ao_lco_armed;
  43 static uint8_t  ao_lco_firing;
  44 static uint8_t  ao_lco_valid;
  45 static uint8_t  ao_lco_got_channels;
  46 static uint16_t ao_lco_tick_offset;
  47
  48 static struct ao_pad_query      ao_pad_query;
  49
  50 static void
  51 ao_lco_set_pad(uint8_t pad)
  52 {
  53         ao_seven_segment_set(AO_LCO_PAD_DIGIT, pad);
  54 }
  55
  56 static void
  57 ao_lco_set_box(uint8_t box)
  58 {
  59         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, box % 10);
  60         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, box / 10);
  61 }
  62
  63 static void
  64 ao_lco_set_voltage(uint16_t decivolts)
  65 {
  66         uint8_t tens, ones, tenths;
  67
  68         tenths = decivolts % 10;
  69         ones = (decivolts / 10) % 10;
  70         tens = (decivolts / 100) % 10;
  71         ao_seven_segment_set(AO_LCO_PAD_DIGIT, tenths);
  72         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, ones | 0x10);
  73         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, tens);
  74 }
  75
  76 static void
  77 ao_lco_set_display(void)
  78 {
  79         if (ao_lco_pad == 0) {
  80                 ao_lco_set_voltage(ao_pad_query.battery);
  81         } else {
  82                 ao_lco_set_pad(ao_lco_pad);
  83                 ao_lco_set_box(ao_lco_box);
  84         }
  85 }
  86
  87 #define MASK_SIZE(n)    (((n) + 7) >> 3)
  88 #define MASK_ID(n)      ((n) >> 3)
  89 #define MASK_SHIFT(n)   ((n) & 7)
  90
  91 static uint8_t  ao_lco_box_mask[MASK_SIZE(AO_PAD_MAX_BOXES)];
  92
  93 static uint8_t
  94 ao_lco_box_present(uint8_t box)
  95 {
  96         if (box >= AO_PAD_MAX_BOXES)
  97                 return 0;
  98         return (ao_lco_box_mask[MASK_ID(box)] >> MASK_SHIFT(box)) & 1;
  99 }
 100
 101 static uint8_t
 102 ao_lco_pad_present(uint8_t pad)
 103 {
 104         if (!ao_lco_got_channels || !ao_pad_query.channels)
 105                 return pad == 0;
 106         /* voltage measurement is always valid */
 107         if (pad == 0)
 108                 return 1;
 109         if (pad > AO_PAD_MAX_CHANNELS)
 110                 return 0;
 111         return (ao_pad_query.channels >> (pad - 1)) & 1;
 112 }
 113
 114 static uint8_t
 115 ao_lco_pad_first(void)
 116 {
 117         uint8_t pad;
 118
 119         for (pad = 1; pad <= AO_PAD_MAX_CHANNELS; pad++)
 120                 if (ao_lco_pad_present(pad))
 121                         return pad;
 122         return 0;
 123 }
 124
 125 static void
 126 ao_lco_input(void)
 127 {
 128         static struct ao_event  event;
 129         int8_t  dir, new_box, new_pad;
 130
 131         ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 132         for (;;) {
 133                 ao_event_get(&event);
 134                 PRINTD("event type %d unit %d value %d\n",
 135                        event.type, event.unit, event.value);
 136                 switch (event.type) {
 137                 case AO_EVENT_QUADRATURE:
 138                         switch (event.unit) {
 139                         case AO_QUADRATURE_PAD:
 140                                 if (!ao_lco_armed) {
 141                                         dir = (int8_t) event.value;
 142                                         new_pad = ao_lco_pad;
 143                                         do {
 144                                                 new_pad += dir;
 145                                                 if (new_pad > AO_PAD_MAX_CHANNELS)
 146                                                         new_pad = 0;
 147                                                 if (new_pad < 0)
 148                                                         new_pad = AO_PAD_MAX_CHANNELS;
 149                                                 if (new_pad == ao_lco_pad)
 150                                                         break;
 151                                         } while (!ao_lco_pad_present(new_pad));
 152                                         if (new_pad != ao_lco_pad) {
 153                                                 ao_lco_pad = new_pad;
 154                                                 ao_lco_set_display();
 155                                         }
 156                                 }
 157                                 break;
 158                         case AO_QUADRATURE_BOX:
 159                                 if (!ao_lco_armed) {
 160                                         dir = (int8_t) event.value;
 161                                         new_box = ao_lco_box;
 162                                         do {
 163                                                 new_box += dir;
 164                                                 if (new_box > ao_lco_max_box)
 165                                                         new_box = ao_lco_min_box;
 166                                                 else if (new_box < ao_lco_min_box)
 167                                                         new_box = ao_lco_max_box;
 168                                                 if (new_box == ao_lco_box)
 169                                                         break;
 170                                         } while (!ao_lco_box_present(new_box));
 171                                         if (ao_lco_box != new_box) {
 172                                                 ao_lco_box = new_box;
 173                                                 ao_lco_pad = 1;
 174                                                 ao_lco_got_channels = 0;
 175                                                 ao_lco_set_display();
 176                                         }
 177                                 }
 178                                 break;
 179                         }
 180                         break;
 181                 case AO_EVENT_BUTTON:
 182                         switch (event.unit) {
 183                         case AO_BUTTON_ARM:
 184                                 ao_lco_armed = event.value;
 185                                 PRINTD("Armed %d\n", ao_lco_armed);
 186                                 ao_wakeup(&ao_lco_armed);
 187                                 break;
 188                         case AO_BUTTON_FIRE:
 189                                 if (ao_lco_armed) {
 190                                         ao_lco_firing = event.value;
 191                                         PRINTD("Firing %d\n", ao_lco_firing);
 192                                         ao_wakeup(&ao_lco_armed);
 193                                 }
 194                                 break;
 195                         }
 196                         break;
 197                 }
 198         }
 199 }
 200
 201 static AO_LED_TYPE      continuity_led[AO_LED_CONTINUITY_NUM] = {
 202 #ifdef AO_LED_CONTINUITY_0
 203         AO_LED_CONTINUITY_0,
 204 #endif
 205 #ifdef AO_LED_CONTINUITY_1
 206         AO_LED_CONTINUITY_1,
 207 #endif
 208 #ifdef AO_LED_CONTINUITY_2
 209         AO_LED_CONTINUITY_2,
 210 #endif
 211 #ifdef AO_LED_CONTINUITY_3
 212         AO_LED_CONTINUITY_3,
 213 #endif
 214 #ifdef AO_LED_CONTINUITY_4
 215         AO_LED_CONTINUITY_4,
 216 #endif
 217 #ifdef AO_LED_CONTINUITY_5
 218         AO_LED_CONTINUITY_5,
 219 #endif
 220 #ifdef AO_LED_CONTINUITY_6
 221         AO_LED_CONTINUITY_6,
 222 #endif
 223 #ifdef AO_LED_CONTINUITY_7
 224         AO_LED_CONTINUITY_7,
 225 #endif
 226 };
 227
 228 static void
 229 ao_lco_update(void)
 230 {
 231         int8_t                  r;
 232         uint8_t                 c;
 233
 234         r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 235         if (r == AO_RADIO_CMAC_OK) {
 236                 c = ao_lco_got_channels;
 237                 ao_lco_got_channels = 1;
 238                 ao_lco_valid = 1;
 239                 if (!c) {
 240                         if (ao_lco_pad != 0)
 241                                 ao_lco_pad = ao_lco_pad_first();
 242                         ao_lco_set_display();
 243                 }
 244                 if (ao_lco_pad == 0)
 245                         ao_lco_set_display();
 246         } else
 247                 ao_lco_valid = 0;
 248
 249 #if 0
 250         PRINTD("lco_query success arm_status %d i0 %d i1 %d i2 %d i3 %d\n",
 251                query.arm_status,
 252                query.igniter_status[0],
 253                query.igniter_status[1],
 254                query.igniter_status[2],
 255                query.igniter_status[3]);
 256 #endif
 257         PRINTD("ao_lco_update valid %d\n", ao_lco_valid);
 258         ao_wakeup(&ao_pad_query);
 259 }
 260
 261 static void
 262 ao_lco_box_reset_present(void)
 263 {
 264         ao_lco_min_box = 0xff;
 265         ao_lco_max_box = 0x00;
 266         memset(ao_lco_box_mask, 0, sizeof (ao_lco_box_mask));
 267 }
 268
 269 static void
 270 ao_lco_box_set_present(uint8_t box)
 271 {
 272         if (box < ao_lco_min_box)
 273                 ao_lco_min_box = box;
 274         if (box > ao_lco_max_box)
 275                 ao_lco_max_box = box;
 276         if (box >= AO_PAD_MAX_BOXES)
 277                 return;
 278         ao_lco_box_mask[MASK_ID(box)] |= 1 << MASK_SHIFT(box);
 279 }
 280
 281 static void
 282 ao_lco_search(void)
 283 {
 284         uint16_t        tick_offset;
 285         int8_t          r;
 286         int8_t          try;
 287         uint8_t         box;
 288         uint8_t         boxes = 0;
 289
 290         ao_lco_box_reset_present();
 291         ao_lco_set_pad(0);
 292         for (box = 0; box < AO_PAD_MAX_BOXES; box++) {
 293                 if ((box % 10) == 0)
 294                         ao_lco_set_box(box);
 295                 for (try = 0; try < 3; try++) {
 296                         tick_offset = 0;
 297                         r = ao_lco_query(box, &ao_pad_query, &tick_offset);
 298                         PRINTD("box %d result %d\n", box, r);
 299                         if (r == AO_RADIO_CMAC_OK) {
 300                                 ++boxes;
 301                                 ao_lco_box_set_present(box);
 302                                 ao_lco_set_pad(boxes % 10);
 303                                 ao_delay(AO_MS_TO_TICKS(30));
 304                                 break;
 305                         }
 306                 }
 307         }
 308         if (ao_lco_min_box <= ao_lco_max_box)
 309                 ao_lco_box = ao_lco_min_box;
 310         else
 311                 ao_lco_min_box = ao_lco_max_box = ao_lco_box = 0;
 312         ao_lco_valid = 0;
 313         ao_lco_got_channels = 0;
 314         ao_lco_pad = 1;
 315         ao_lco_set_display();
 316 }
 317
 318 static void
 319 ao_lco_igniter_status(void)
 320 {
 321         uint8_t         c;
 322
 323         for (;;) {
 324                 ao_sleep(&ao_pad_query);
 325                 PRINTD("RSSI %d VALID %d\n", ao_radio_cmac_rssi, ao_lco_valid);
 326                 if (!ao_lco_valid) {
 327                         ao_led_on(AO_LED_RED);
 328                         ao_led_off(AO_LED_GREEN|AO_LED_AMBER);
 329                         continue;
 330                 }
 331                 if (ao_radio_cmac_rssi < -90) {
 332                         ao_led_on(AO_LED_AMBER);
 333                         ao_led_off(AO_LED_RED|AO_LED_GREEN);
 334                 } else {
 335                         ao_led_on(AO_LED_GREEN);
 336                         ao_led_off(AO_LED_RED|AO_LED_AMBER);
 337                 }
 338                 if (ao_pad_query.arm_status)
 339                         ao_led_on(AO_LED_REMOTE_ARM);
 340                 else
 341                         ao_led_off(AO_LED_REMOTE_ARM);
 342                 for (c = 0; c < AO_LED_CONTINUITY_NUM; c++) {
 343                         uint8_t status;
 344
 345                         if (ao_pad_query.channels & (1 << c))
 346                                 status = ao_pad_query.igniter_status[c];
 347                         else
 348                                 status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN;
 349                         if (status == AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN)
 350                                 ao_led_on(continuity_led[c]);
 351                         else
 352                                 ao_led_off(continuity_led[c]);
 353                 }
 354         }
 355 }
 356
 357 static void
 358 ao_lco_arm_warn(void)
 359 {
 360         for (;;) {
 361                 while (!ao_lco_armed)
 362                         ao_sleep(&ao_lco_armed);
 363                 ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 364                 ao_delay(AO_MS_TO_TICKS(200));
 365         }
 366 }
 367
 368 static struct ao_task ao_lco_input_task;
 369 static struct ao_task ao_lco_monitor_task;
 370 static struct ao_task ao_lco_arm_warn_task;
 371 static struct ao_task ao_lco_igniter_status_task;
 372
 373 static void
 374 ao_lco_monitor(void)
 375 {
 376         uint16_t                delay;
 377
 378         ao_lco_search();
 379         ao_add_task(&ao_lco_input_task, ao_lco_input, "lco input");
 380         ao_add_task(&ao_lco_arm_warn_task, ao_lco_arm_warn, "lco arm warn");
 381         ao_add_task(&ao_lco_igniter_status_task, ao_lco_igniter_status, "lco igniter status");
 382         for (;;) {
 383                 PRINTD("monitor armed %d firing %d offset %d\n",
 384                        ao_lco_armed, ao_lco_firing, ao_lco_tick_offset);
 385
 386                 if (ao_lco_armed && ao_lco_firing) {
 387                         PRINTD("Firing box %d pad %d: valid %d\n",
 388                                ao_lco_box, ao_lco_pad, ao_lco_valid);
 389                         if (!ao_lco_valid)
 390                                 ao_lco_update();
 391                         if (ao_lco_valid && ao_lco_pad)
 392                                 ao_lco_ignite(ao_lco_box, 1 << (ao_lco_pad - 1), ao_lco_tick_offset);
 393                 } else if (ao_lco_armed) {
 394                         PRINTD("Arming box %d pad %d\n",
 395                                ao_lco_box, ao_lco_pad);
 396                         if (!ao_lco_valid)
 397                                 ao_lco_update();
 398                         if (ao_lco_pad) {
 399                                 ao_lco_arm(ao_lco_box, 1 << (ao_lco_pad - 1), ao_lco_tick_offset);
 400                                 ao_delay(AO_MS_TO_TICKS(30));
 401                                 ao_lco_update();
 402                         }
 403                 } else {
 404                         ao_lco_update();
 405                 }
 406                 if (ao_lco_armed && ao_lco_firing)
 407                         delay = AO_MS_TO_TICKS(100);
 408                 else
 409                         delay = AO_SEC_TO_TICKS(1);
 410                 ao_sleep_for(&ao_lco_armed, delay);
 411         }
 412 }
 413
 414 #if DEBUG
 415 void
 416 ao_lco_set_debug(void)
 417 {
 418         ao_cmd_decimal();
 419         if (ao_cmd_status == ao_cmd_success)
 420                 ao_lco_debug = ao_cmd_lex_i != 0;
 421 }
 422
 423 __code struct ao_cmds ao_lco_cmds[] = {
 424         { ao_lco_set_debug,     "D <0 off, 1 on>\0Debug" },
 425         { ao_lco_search,        "s\0Search for pad boxes" },
 426         { 0, NULL }
 427 };
 428 #endif
 429
 430 void
 431 ao_lco_init(void)
 432 {
 433         ao_add_task(&ao_lco_monitor_task, ao_lco_monitor, "lco monitor");
 434 #if DEBUG
 435         ao_cmd_register(&ao_lco_cmds[0]);
 436 #endif
 437 }