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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; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include <ao.h>
  20 #include <ao_lco.h>
  21 #include <ao_event.h>
  22 #include <ao_seven_segment.h>
  23 #include <ao_quadrature.h>
  24 #include <ao_radio_cmac.h>
  25 #include <ao_adc_single.h>
  26
  27 #define AO_LCO_PAD_DIGIT        0
  28 #define AO_LCO_BOX_DIGIT_1      1
  29 #define AO_LCO_BOX_DIGIT_10     2
  30
  31 #define AO_LCO_DRAG_RACE_START_TIME     AO_SEC_TO_TICKS(5)
  32 #define AO_LCO_DRAG_RACE_STOP_TIME      AO_SEC_TO_TICKS(2)
  33
  34 /* UI values */
  35 static uint8_t  ao_lco_select_mode;
  36 #define AO_LCO_SELECT_PAD       0
  37 #define AO_LCO_SELECT_BOX       1
  38
  39 static uint8_t  ao_lco_display_mutex;
  40
  41 void
  42 ao_lco_show_pad(uint8_t pad)
  43 {
  44         ao_mutex_get(&ao_lco_display_mutex);
  45         ao_seven_segment_set(AO_LCO_PAD_DIGIT, pad | (ao_lco_drag_race << 4));
  46         ao_mutex_put(&ao_lco_display_mutex);
  47 }
  48
  49 #define SEVEN_SEGMENT_d         ((0 << 0) |     \
  50                                  (0 << 1) |     \
  51                                  (1 << 2) |     \
  52                                  (1 << 3) |     \
  53                                  (1 << 4) |     \
  54                                  (1 << 5) |     \
  55                                  (1 << 6))
  56
  57
  58 #define SEVEN_SEGMENT_r         ((0 << 0) |     \
  59                                  (0 << 1) |     \
  60                                  (0 << 2) |     \
  61                                  (1 << 3) |     \
  62                                  (1 << 4) |     \
  63                                  (0 << 5) |     \
  64                                  (0 << 6))
  65
  66 void
  67 ao_lco_show_box(uint16_t box)
  68 {
  69         ao_mutex_get(&ao_lco_display_mutex);
  70         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, box % 10 | (ao_lco_drag_race << 4));
  71         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, box / 10 | (ao_lco_drag_race << 4));
  72         ao_mutex_put(&ao_lco_display_mutex);
  73 }
  74
  75 static void
  76 ao_lco_show_voltage(uint16_t decivolts)
  77 {
  78         uint8_t tens, ones, tenths;
  79
  80         PRINTD("voltage %d\n", decivolts);
  81         tenths = decivolts % 10;
  82         ones = (decivolts / 10) % 10;
  83         tens = (decivolts / 100) % 10;
  84         ao_mutex_get(&ao_lco_display_mutex);
  85         ao_seven_segment_set(AO_LCO_PAD_DIGIT, tenths);
  86         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, ones | 0x10);
  87         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, tens);
  88         ao_mutex_put(&ao_lco_display_mutex);
  89 }
  90
  91 void
  92 ao_lco_show(void)
  93 {
  94         if (ao_lco_pad == AO_LCO_PAD_VOLTAGE) {
  95                 ao_lco_show_voltage(ao_pad_query.battery);
  96         } else {
  97                 ao_lco_show_pad(ao_lco_pad);
  98                 ao_lco_show_box(ao_lco_box);
  99         }
 100 }
 101
 102 uint8_t
 103 ao_lco_box_present(uint16_t box)
 104 {
 105         if (box >= AO_PAD_MAX_BOXES)
 106                 return 0;
 107         return (ao_lco_box_mask[AO_LCO_MASK_ID(box)] >> AO_LCO_MASK_SHIFT(box)) & 1;
 108 }
 109
 110 static void
 111 ao_lco_set_select(void)
 112 {
 113         if (ao_lco_armed) {
 114                 ao_led_off(AO_LED_PAD);
 115                 ao_led_off(AO_LED_BOX);
 116         } else {
 117                 switch (ao_lco_select_mode) {
 118                 case AO_LCO_SELECT_PAD:
 119                         ao_led_off(AO_LED_BOX);
 120                         ao_led_on(AO_LED_PAD);
 121                         break;
 122                 case AO_LCO_SELECT_BOX:
 123                         ao_led_off(AO_LED_PAD);
 124                         ao_led_on(AO_LED_BOX);
 125                         break;
 126                 default:
 127                         break;
 128                 }
 129         }
 130 }
 131
 132 static void
 133 ao_lco_step_box(int8_t dir)
 134 {
 135         int16_t new_box = ao_lco_box;
 136
 137         do {
 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_max_box;
 143                 if (new_box == ao_lco_box)
 144                         break;
 145         } while (!ao_lco_box_present(new_box));
 146         ao_lco_set_box(new_box);
 147 }
 148
 149 static struct ao_task   ao_lco_drag_task;
 150
 151 static void
 152 ao_lco_drag_monitor(void)
 153 {
 154         uint16_t        delay = ~0;
 155         uint16_t        now;
 156
 157         ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
 158         for (;;) {
 159                 PRINTD("Drag monitor count %d delay %d\n", ao_lco_drag_beep_count, delay);
 160                 if (delay == (uint16_t) ~0)
 161                         ao_sleep(&ao_lco_drag_beep_count);
 162                 else
 163                         ao_sleep_for(&ao_lco_drag_beep_count, delay);
 164
 165                 delay = ~0;
 166                 now = ao_time();
 167                 delay = ao_lco_drag_warn_check(now, delay);
 168                 delay = ao_lco_drag_beep_check(now, delay);
 169         }
 170 }
 171
 172 static void
 173 ao_lco_input(void)
 174 {
 175         static struct ao_event  event;
 176
 177         for (;;) {
 178                 ao_event_get(&event);
 179                 PRINTD("event type %d unit %d value %d\n",
 180                        event.type, event.unit, event.value);
 181                 switch (event.type) {
 182                 case AO_EVENT_QUADRATURE:
 183                         switch (event.unit) {
 184                         case AO_QUADRATURE_SELECT:
 185                                 if (!ao_lco_armed) {
 186                                         switch (ao_lco_select_mode) {
 187                                         case AO_LCO_SELECT_PAD:
 188                                                 ao_lco_step_pad((int8_t) event.value);
 189                                                 break;
 190                                         case AO_LCO_SELECT_BOX:
 191                                                 ao_lco_step_box((int8_t) event.value);
 192                                                 break;
 193                                         default:
 194                                                 break;
 195                                         }
 196                                 }
 197                                 break;
 198                         }
 199                         break;
 200                 case AO_EVENT_BUTTON:
 201                         switch (event.unit) {
 202                         case AO_BUTTON_ARM:
 203                                 ao_lco_set_armed(event.value);
 204                                 ao_lco_set_select();
 205                                 break;
 206                         case AO_BUTTON_FIRE:
 207                                 if (ao_lco_armed)
 208                                         ao_lco_set_firing(event.value);
 209                                 break;
 210                         case AO_BUTTON_DRAG_SELECT:
 211                                 if (event.value)
 212                                         ao_lco_toggle_drag();
 213                                 break;
 214                         case AO_BUTTON_DRAG_MODE:
 215                                 if (event.value)
 216                                         ao_lco_drag_enable();
 217                                 else
 218                                         ao_lco_drag_disable();
 219                                 break;
 220                         case AO_BUTTON_ENCODER_SELECT:
 221                                 if (event.value) {
 222                                         if (!ao_lco_armed) {
 223                                                 ao_lco_select_mode = 1 - ao_lco_select_mode;
 224                                                 ao_lco_set_select();
 225                                         }
 226                                 }
 227                                 break;
 228                         }
 229                         break;
 230                 }
 231         }
 232 }
 233
 234 /*
 235  * Light up everything for a second at power on to let the user
 236  * visually inspect the system for correct operation
 237  */
 238 static void
 239 ao_lco_display_test()
 240 {
 241         ao_mutex_get(&ao_lco_display_mutex);
 242         ao_seven_segment_set(AO_LCO_PAD_DIGIT, 8 | 0x10);
 243         ao_seven_segment_set(AO_LCO_BOX_DIGIT_1, 8 | 0x10);
 244         ao_seven_segment_set(AO_LCO_BOX_DIGIT_10, 8 | 0x10);
 245         ao_mutex_put(&ao_lco_display_mutex);
 246         ao_led_on(LEDS_AVAILABLE);
 247         ao_delay(AO_MS_TO_TICKS(1000));
 248         ao_led_off(LEDS_AVAILABLE);
 249 }
 250
 251 static void
 252 ao_lco_batt_voltage(void)
 253 {
 254         struct ao_adc   packet;
 255         int16_t         decivolt;
 256
 257         ao_adc_single_get(&packet);
 258         decivolt = ao_battery_decivolt(packet.v_batt);
 259         ao_lco_show_voltage(decivolt);
 260         ao_delay(AO_MS_TO_TICKS(1000));
 261 }
 262
 263 static struct ao_task ao_lco_input_task;
 264 static struct ao_task ao_lco_monitor_task;
 265 static struct ao_task ao_lco_arm_warn_task;
 266 static struct ao_task ao_lco_igniter_status_task;
 267
 268 static void
 269 ao_lco_main(void)
 270 {
 271         ao_lco_display_test();
 272         ao_lco_batt_voltage();
 273         ao_lco_search();
 274         ao_add_task(&ao_lco_input_task, ao_lco_input, "lco input");
 275         ao_add_task(&ao_lco_arm_warn_task, ao_lco_arm_warn, "lco arm warn");
 276         ao_add_task(&ao_lco_igniter_status_task, ao_lco_igniter_status, "lco igniter status");
 277         ao_add_task(&ao_lco_drag_task, ao_lco_drag_monitor, "drag race");
 278         ao_lco_monitor();
 279 }
 280
 281 #if DEBUG
 282 void
 283 ao_lco_set_debug(void)
 284 {
 285         ao_cmd_decimal();
 286         if (ao_cmd_status == ao_cmd_success)
 287                 ao_lco_debug = ao_cmd_lex_i != 0;
 288 }
 289
 290 const struct ao_cmds ao_lco_cmds[] = {
 291         { ao_lco_set_debug,     "D <0 off, 1 on>\0Debug" },
 292         { ao_lco_search,        "s\0Search for pad boxes" },
 293         { 0, NULL }
 294 };
 295 #endif
 296
 297 void
 298 ao_lco_init(void)
 299 {
 300         ao_add_task(&ao_lco_monitor_task, ao_lco_main, "lco monitor");
 301 #if DEBUG
 302         ao_cmd_register(&ao_lco_cmds[0]);
 303 #endif
 304 }