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   1 /*
   2  * Copyright © 2009 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_data.h>
  20
  21 __xdata struct ao_ignition ao_ignition[2];
  22
  23 void
  24 ao_ignite(enum ao_igniter igniter) __critical
  25 {
  26         ao_ignition[igniter].request = 1;
  27         ao_wakeup(&ao_ignition);
  28 }
  29
  30 #ifndef AO_SENSE_DROGUE
  31 #define AO_SENSE_DROGUE(p)      ((p)->adc.sense_d)
  32 #define AO_SENSE_MAIN(p)        ((p)->adc.sense_m)
  33 #endif
  34
  35 enum ao_igniter_status
  36 ao_igniter_status(enum ao_igniter igniter)
  37 {
  38         __xdata struct ao_data packet;
  39         __pdata int16_t value;
  40         __pdata uint8_t request, firing, fired;
  41
  42         __critical {
  43                 ao_data_get(&packet);
  44                 request = ao_ignition[igniter].request;
  45                 fired = ao_ignition[igniter].fired;
  46                 firing = ao_ignition[igniter].firing;
  47         }
  48         if (firing || (request && !fired))
  49                 return ao_igniter_active;
  50
  51         value = (AO_IGNITER_CLOSED>>1);
  52         switch (igniter) {
  53         case ao_igniter_drogue:
  54                 value = AO_SENSE_DROGUE(&packet);
  55                 break;
  56         case ao_igniter_main:
  57                 value = AO_SENSE_MAIN(&packet);
  58                 break;
  59         }
  60         if (value < AO_IGNITER_OPEN)
  61                 return ao_igniter_open;
  62         else if (value > AO_IGNITER_CLOSED)
  63                 return ao_igniter_ready;
  64         else
  65                 return ao_igniter_unknown;
  66 }
  67
  68 #ifndef AO_IGNITER_SET_DROGUE
  69 #define AO_IGNITER_SET_DROGUE(v)        AO_IGNITER_DROGUE = (v)
  70 #define AO_IGNITER_SET_MAIN(v)          AO_IGNITER_MAIN = (v)
  71 #endif
  72
  73 #ifndef AO_IGNITER_FIRE_TIME
  74 #define AO_IGNITER_FIRE_TIME            AO_MS_TO_TICKS(50)
  75 #endif
  76
  77 #ifndef AO_IGNITER_CHARGE_TIME
  78 #define AO_IGNITER_CHARGE_TIME          AO_MS_TO_TICKS(2000)
  79 #endif
  80
  81 void
  82 ao_igniter_fire(enum ao_igniter igniter) __critical
  83 {
  84         ao_ignition[igniter].firing = 1;
  85         switch(ao_config.ignite_mode) {
  86         case AO_IGNITE_MODE_DUAL:
  87                 switch (igniter) {
  88                 case ao_igniter_drogue:
  89                         AO_IGNITER_SET_DROGUE(1);
  90                         ao_delay(AO_IGNITER_FIRE_TIME);
  91                         AO_IGNITER_SET_DROGUE(0);
  92                         break;
  93                 case ao_igniter_main:
  94                         AO_IGNITER_SET_MAIN(1);
  95                         ao_delay(AO_IGNITER_FIRE_TIME);
  96                         AO_IGNITER_SET_MAIN(0);
  97                         break;
  98                 }
  99                 break;
 100         case AO_IGNITE_MODE_APOGEE:
 101                 switch (igniter) {
 102                 case ao_igniter_drogue:
 103                         AO_IGNITER_SET_DROGUE(1);
 104                         ao_delay(AO_IGNITER_FIRE_TIME);
 105                         AO_IGNITER_SET_DROGUE(0);
 106                         ao_delay(AO_IGNITER_CHARGE_TIME);
 107                         AO_IGNITER_SET_MAIN(1);
 108                         ao_delay(AO_IGNITER_FIRE_TIME);
 109                         AO_IGNITER_SET_MAIN(0);
 110                         break;
 111                 }
 112                 break;
 113         case AO_IGNITE_MODE_MAIN:
 114                 switch (igniter) {
 115                 case ao_igniter_main:
 116                         AO_IGNITER_SET_DROGUE(1);
 117                         ao_delay(AO_IGNITER_FIRE_TIME);
 118                         AO_IGNITER_SET_DROGUE(0);
 119                         ao_delay(AO_IGNITER_CHARGE_TIME);
 120                         AO_IGNITER_SET_MAIN(1);
 121                         ao_delay(AO_IGNITER_FIRE_TIME);
 122                         AO_IGNITER_SET_MAIN(0);
 123                         break;
 124                 }
 125                 break;
 126         }
 127         ao_ignition[igniter].firing = 0;
 128 }
 129
 130 void
 131 ao_igniter(void)
 132 {
 133         __xdata enum ao_igniter igniter;
 134
 135         ao_config_get();
 136         for (;;) {
 137                 ao_sleep(&ao_ignition);
 138                 for (igniter = ao_igniter_drogue; igniter <= ao_igniter_main; igniter++) {
 139                         if (ao_ignition[igniter].request && !ao_ignition[igniter].fired) {
 140                                 if (igniter == ao_igniter_drogue && ao_config.apogee_delay)
 141                                         ao_delay(AO_SEC_TO_TICKS(ao_config.apogee_delay));
 142
 143                                 ao_igniter_fire(igniter);
 144                                 ao_delay(AO_IGNITER_CHARGE_TIME);
 145                                 ao_ignition[igniter].fired = 1;
 146                         }
 147                 }
 148         }
 149 }
 150
 151 void
 152 ao_ignite_manual(void)
 153 {
 154         ao_cmd_white();
 155         if (!ao_match_word("DoIt"))
 156                 return;
 157         ao_cmd_white();
 158         if (ao_cmd_lex_c == 'm') {
 159                 if(ao_match_word("main"))
 160                         ao_igniter_fire(ao_igniter_main);
 161         } else {
 162                 if(ao_match_word("drogue"))
 163                         ao_igniter_fire(ao_igniter_drogue);
 164         }
 165 }
 166
 167 static __code char * __code igniter_status_names[] = {
 168         "unknown", "ready", "active", "open"
 169 };
 170
 171 void
 172 ao_ignite_print_status(enum ao_igniter igniter, __code char *name) __reentrant
 173 {
 174         enum ao_igniter_status status = ao_igniter_status(igniter);
 175         printf("Igniter: %6s Status: %s\n",
 176                name,
 177                igniter_status_names[status]);
 178 }
 179
 180 void
 181 ao_ignite_test(void)
 182 {
 183         ao_ignite_print_status(ao_igniter_drogue, "drogue");
 184         ao_ignite_print_status(ao_igniter_main, "main");
 185 }
 186
 187 __code struct ao_cmds ao_ignite_cmds[] = {
 188         { ao_ignite_manual,     "i <key> {main|drogue}\0Fire igniter. <key> is doit with D&I" },
 189         { ao_ignite_test,       "t\0Test igniter" },
 190         { 0,    NULL },
 191 };
 192
 193 __xdata struct ao_task ao_igniter_task;
 194
 195 void
 196 ao_ignite_set_pins(void)
 197 {
 198         ao_enable_output(AO_IGNITER_DROGUE_PORT, AO_IGNITER_DROGUE_PIN, AO_IGNITER_DROGUE, 0);
 199         ao_enable_output(AO_IGNITER_MAIN_PORT, AO_IGNITER_MAIN_PIN, AO_IGNITER_MAIN, 0);
 200 }
 201
 202 void
 203 ao_igniter_init(void)
 204 {
 205         ao_ignite_set_pins();
 206         ao_cmd_register(&ao_ignite_cmds[0]);
 207         ao_add_task(&ao_igniter_task, ao_igniter, "igniter");
 208 }