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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 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(void)
  52 {
  53         ao_seven_segment_set(AO_LCO_PAD_DIGIT, ao_lco_pad + 1);
  54 }
  55
  56 static void
  57 ao_lco_set_box(void)
  58 {
  59         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, ao_lco_box % 10);
  60         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, ao_lco_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_valid || !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;
 103
 104         ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 105         ao_lco_set_pad();
 106         ao_lco_set_box();
 107         for (;;) {
 108                 ao_event_get(&event);
 109                 PRINTD("event type %d unit %d value %d\n",
 110                        event.type, event.unit, event.value);
 111                 switch (event.type) {
 112                 case AO_EVENT_QUADRATURE:
 113                         switch (event.unit) {
 114                         case AO_QUADRATURE_PAD:
 115                                 if (!ao_lco_armed) {
 116                                         if (event.value == ao_lco_pad)
 117                                                 break;
 118                                         dir = ((int8_t) event.value - (int8_t) ao_lco_pad) > 0 ? 1 : -1;
 119                                         ao_lco_pad = event.value;
 120                                         while (!ao_lco_pad_present(ao_lco_pad)) {
 121                                                 ao_lco_pad += dir;
 122                                                 if ((int8_t) ao_lco_pad > AO_PAD_MAX_CHANNELS)
 123                                                         ao_lco_pad = 0;
 124                                                 else if ((int8_t) ao_lco_pad < 0)
 125                                                         ao_lco_pad = AO_PAD_MAX_CHANNELS - 1;
 126                                         }
 127                                         ao_quadrature_count[AO_QUADRATURE_PAD] = ao_lco_pad;
 128                                         ao_lco_set_pad();
 129                                 }
 130                                 break;
 131                         case AO_QUADRATURE_BOX:
 132                                 if (!ao_lco_armed) {
 133                                         if (event.value == ao_lco_box)
 134                                                 break;
 135                                         dir = ((int8_t) event.value - (int8_t) ao_lco_box) > 0 ? 1 : -1;
 136                                         new_box = event.value;
 137                                         while (!ao_lco_box_present(new_box)) {
 138                                                 new_box += dir;
 139                                                 if (new_box > ao_lco_max_box)
 140                                                         new_box = ao_lco_min_box;
 141                                                 else if (new_box < ao_lco_min_box)
 142                                                         new_box = ao_lco_min_box;
 143                                         }
 144                                         ao_quadrature_count[AO_QUADRATURE_PAD] = new_box;
 145                                         if (ao_lco_box != new_box) {
 146                                                 ao_lco_box = new_box;
 147                                                 ao_lco_valid = 0;
 148                                                 ao_lco_set_box();
 149                                         }
 150                                 }
 151                                 break;
 152                         }
 153                         break;
 154                 case AO_EVENT_BUTTON:
 155                         switch (event.unit) {
 156                         case AO_BUTTON_ARM:
 157                                 ao_lco_armed = event.value;
 158                                 PRINTD("Armed %d\n", ao_lco_armed);
 159                                 ao_wakeup(&ao_lco_armed);
 160                                 break;
 161                         case AO_BUTTON_FIRE:
 162                                 if (ao_lco_armed) {
 163                                         ao_lco_firing = event.value;
 164                                         PRINTD("Firing %d\n", ao_lco_firing);
 165                                         ao_wakeup(&ao_lco_armed);
 166                                 }
 167                                 break;
 168                         }
 169                         break;
 170                 }
 171         }
 172 }
 173
 174 static AO_LED_TYPE      continuity_led[AO_LED_CONTINUITY_NUM] = {
 175 #ifdef AO_LED_CONTINUITY_0
 176         AO_LED_CONTINUITY_0,
 177 #endif
 178 #ifdef AO_LED_CONTINUITY_1
 179         AO_LED_CONTINUITY_1,
 180 #endif
 181 #ifdef AO_LED_CONTINUITY_2
 182         AO_LED_CONTINUITY_2,
 183 #endif
 184 #ifdef AO_LED_CONTINUITY_3
 185         AO_LED_CONTINUITY_3,
 186 #endif
 187 #ifdef AO_LED_CONTINUITY_4
 188         AO_LED_CONTINUITY_4,
 189 #endif
 190 #ifdef AO_LED_CONTINUITY_5
 191         AO_LED_CONTINUITY_5,
 192 #endif
 193 #ifdef AO_LED_CONTINUITY_6
 194         AO_LED_CONTINUITY_6,
 195 #endif
 196 #ifdef AO_LED_CONTINUITY_7
 197         AO_LED_CONTINUITY_7,
 198 #endif
 199 };
 200
 201 static void
 202 ao_lco_update(void)
 203 {
 204         int8_t                  r;
 205         uint8_t                 c;
 206
 207         r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 208         if (r == AO_RADIO_CMAC_OK) {
 209                 c = ao_lco_valid;
 210                 ao_lco_valid = 1;
 211                 if (!c) {
 212                         ao_lco_pad = ao_lco_pad_first();
 213                         ao_lco_set_pad();
 214                 }
 215         }
 216
 217 #if 0
 218         PRINTD("lco_query success arm_status %d i0 %d i1 %d i2 %d i3 %d\n",
 219                query.arm_status,
 220                query.igniter_status[0],
 221                query.igniter_status[1],
 222                query.igniter_status[2],
 223                query.igniter_status[3]);
 224 #endif
 225
 226         ao_wakeup(&ao_pad_query);
 227 }
 228
 229 static void
 230 ao_lco_box_set_present(uint8_t box)
 231 {
 232         if (box >= AO_PAD_MAX_BOXES)
 233                 return;
 234         ao_lco_box_mask[MASK_ID(box)] |= 1 << MASK_SHIFT(box);
 235 }
 236
 237 static void
 238 ao_lco_search(void)
 239 {
 240         uint16_t        tick_offset;
 241         int8_t          r;
 242
 243         ao_lco_min_box = 0xff;
 244         ao_lco_max_box = 0x00;
 245         for (ao_lco_box = 0; ao_lco_box < AO_PAD_MAX_BOXES; ao_lco_box++) {
 246                 ao_lco_set_box();
 247                 r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 248                 if (r == AO_RADIO_CMAC_OK) {
 249                         if (ao_lco_box < ao_lco_min_box)
 250                                 ao_lco_min_box = ao_lco_box;
 251                         if (ao_lco_box > ao_lco_max_box)
 252                                 ao_lco_max_box = ao_lco_box;
 253                         ao_lco_box_set_present(ao_lco_box);
 254                 }
 255         }
 256         if (ao_lco_min_box <= ao_lco_max_box)
 257                 ao_lco_box = ao_lco_min_box;
 258         else
 259                 ao_lco_box = 0;
 260         ao_lco_valid = 0;
 261         ao_lco_pad = 0;
 262 }
 263
 264 static void
 265 ao_lco_igniter_status(void)
 266 {
 267         uint8_t         c;
 268         uint16_t        delay;
 269
 270         for (;;) {
 271 //              ao_alarm(delay);
 272                 ao_sleep(&ao_pad_query);
 273 //              ao_clear_alarm();
 274                 if (!ao_lco_valid) {
 275                         ao_led_on(AO_LED_RED);
 276                         ao_led_off(AO_LED_GREEN);
 277                         continue;
 278                 }
 279                 PRINTD("RSSI %d\n", ao_radio_cmac_rssi);
 280                 if (ao_radio_cmac_rssi < -90)
 281                         ao_led_on(AO_LED_RED|AO_LED_GREEN);
 282                 else {
 283                         ao_led_on(AO_LED_GREEN);
 284                         ao_led_off(AO_LED_RED);
 285                 }
 286                 if (ao_pad_query.arm_status)
 287                         ao_led_on(AO_LED_REMOTE_ARM);
 288                 else
 289                         ao_led_off(AO_LED_REMOTE_ARM);
 290                 for (c = 0; c < AO_LED_CONTINUITY_NUM; c++) {
 291                         uint8_t status;
 292
 293                         if (ao_pad_query.channels & (1 << c))
 294                                 status = ao_pad_query.igniter_status[c];
 295                         else
 296                                 status = AO_PAD_IGNITER_STATUS_NO_IGNITER_RELAY_OPEN;
 297                         if (status == AO_PAD_IGNITER_STATUS_GOOD_IGNITER_RELAY_OPEN)
 298                                 ao_led_on(continuity_led[c]);
 299                         else
 300                                 ao_led_off(continuity_led[c]);
 301                 }
 302         }
 303 }
 304
 305 static void
 306 ao_lco_arm_warn(void)
 307 {
 308         for (;;) {
 309                 while (!ao_lco_armed)
 310                         ao_sleep(&ao_lco_armed);
 311                 ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 312                 ao_delay(AO_MS_TO_TICKS(200));
 313         }
 314 }
 315
 316 static struct ao_task ao_lco_input_task;
 317 static struct ao_task ao_lco_monitor_task;
 318 static struct ao_task ao_lco_arm_warn_task;
 319 static struct ao_task ao_lco_igniter_status_task;
 320
 321 static void
 322 ao_lco_monitor(void)
 323 {
 324         uint16_t                delay;
 325
 326         ao_lco_search();
 327         ao_add_task(&ao_lco_input_task, ao_lco_input, "lco input");
 328         ao_add_task(&ao_lco_arm_warn_task, ao_lco_arm_warn, "lco arm warn");
 329         ao_add_task(&ao_lco_igniter_status_task, ao_lco_igniter_status, "lco igniter status");
 330         for (;;) {
 331                 PRINTD("monitor armed %d firing %d offset %d\n",
 332                        ao_lco_armed, ao_lco_firing, ao_lco_tick_offset);
 333
 334                 if (ao_lco_armed && ao_lco_firing) {
 335                         PRINTD("Firing box %d pad %d: valid %d\n",
 336                                ao_lco_box, ao_lco_pad, ao_lco_valid);
 337                         if (!ao_lco_valid)
 338                                 ao_lco_update();
 339                         if (ao_lco_valid)
 340                                 ao_lco_ignite(ao_lco_box, 1 << ao_lco_pad, ao_lco_tick_offset);
 341                 } else if (ao_lco_armed) {
 342                         PRINTD("Arming box %d pad %d\n",
 343                                ao_lco_box, ao_lco_pad);
 344                         if (!ao_lco_valid)
 345                                 ao_lco_update();
 346                         ao_lco_arm(ao_lco_box, 1 << ao_lco_pad, ao_lco_tick_offset);
 347                         ao_lco_update();
 348                 } else {
 349                         ao_lco_update();
 350                 }
 351                 if (ao_lco_armed && ao_lco_firing)
 352                         delay = AO_MS_TO_TICKS(100);
 353                 else
 354                         delay = AO_SEC_TO_TICKS(1);
 355                 ao_alarm(delay);
 356                 ao_sleep(&ao_lco_armed);
 357                 ao_clear_alarm();
 358         }
 359 }
 360
 361 #if DEBUG
 362 void
 363 ao_lco_set_debug(void)
 364 {
 365         ao_cmd_decimal();
 366         if (ao_cmd_status == ao_cmd_success)
 367                 ao_lco_debug = ao_cmd_lex_i != 0;
 368 }
 369
 370 __code struct ao_cmds ao_lco_cmds[] = {
 371         { ao_lco_set_debug,     "D <0 off, 1 on>\0Debug" },
 372         { 0, NULL }
 373 };
 374 #endif
 375
 376 void
 377 ao_lco_init(void)
 378 {
 379         ao_add_task(&ao_lco_monitor_task, ao_lco_monitor, "lco monitor");
 380 #if DEBUG
 381         ao_cmd_register(&ao_lco_cmds[0]);
 382 #endif
 383 }