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