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   1 /*
   2  * Copyright © 2011 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_product.h"
  20
  21 static struct ao_task ao_log_task;
  22 //static struct ao_task ao_spi_task;
  23
  24 uint8_t         ao_log_running;
  25 uint8_t         ao_log_mutex;
  26 uint32_t        ao_log_start_pos;
  27 uint32_t        ao_log_end_pos;
  28 uint32_t        ao_log_current_pos;
  29
  30 #define AO_LOG_TELESCIENCE_START        ((uint8_t) 's')
  31 #define AO_LOG_TELESCIENCE_DATA         ((uint8_t) 'd')
  32
  33 struct ao_log_telescience ao_log_store;
  34 struct ao_log_telescience ao_log_fetch;
  35
  36 static uint8_t  ao_log_adc_pos;
  37
  38 __code uint8_t ao_log_format = AO_LOG_FORMAT_TELESCIENCE;
  39
  40 static uint8_t
  41 ao_log_csum(__xdata uint8_t *b) __reentrant
  42 {
  43         uint8_t sum = 0x5a;
  44         uint8_t i;
  45
  46         for (i = 0; i < sizeof (struct ao_log_telescience); i++)
  47                 sum += *b++;
  48         return -sum;
  49 }
  50
  51 static uint8_t
  52 ao_log_telescience_write(void)
  53 {
  54         uint8_t wrote = 0;
  55
  56         ao_log_store.csum = 0;
  57         ao_log_store.csum = ao_log_csum((__xdata uint8_t *) &ao_log_store);
  58         ao_mutex_get(&ao_log_mutex); {
  59                 if (ao_log_current_pos >= ao_log_end_pos && ao_log_running)
  60                         ao_log_stop();
  61                 if (ao_log_running) {
  62                         wrote = 1;
  63                         ao_storage_write(ao_log_current_pos,
  64                                          (__xdata uint8_t *) &ao_log_store,
  65                                          sizeof (struct ao_log_telescience));
  66                         ao_log_current_pos += sizeof (struct ao_log_telescience);
  67                 }
  68         } ao_mutex_put(&ao_log_mutex);
  69         return wrote;
  70 }
  71
  72 static uint8_t
  73 ao_log_valid(struct ao_log_telescience *log)
  74 {
  75         uint8_t *d;
  76         uint8_t i;
  77         d = (uint8_t *) log;
  78         for (i = 0; i < sizeof (struct ao_log_telescience); i++)
  79                 if (d[i] != 0xff)
  80                         return 1;
  81         return 0;
  82 }
  83
  84 static uint8_t
  85 ao_log_telescience_read(uint32_t pos)
  86 {
  87         if (!ao_storage_read(pos, &ao_log_fetch, sizeof (struct ao_log_telescience)))
  88                 return 0;
  89         return ao_log_valid(&ao_log_fetch);
  90 }
  91
  92 void
  93 ao_log_start(void)
  94 {
  95         if (!ao_log_running) {
  96                 ao_log_running = 1;
  97                 ao_wakeup(&ao_log_running);
  98         }
  99 }
 100
 101 void
 102 ao_log_stop(void)
 103 {
 104         if (ao_log_running) {
 105                 ao_log_running = 0;
 106         }
 107 }
 108
 109 void
 110 ao_log_restart(void)
 111 {
 112         /* Find end of data */
 113         ao_log_end_pos = ao_storage_config;
 114         for (ao_log_current_pos = 0;
 115              ao_log_current_pos < ao_storage_config;
 116              ao_log_current_pos += ao_storage_block)
 117         {
 118                 if (!ao_log_telescience_read(ao_log_current_pos))
 119                         break;
 120         }
 121         if (ao_log_current_pos > 0) {
 122                 ao_log_current_pos -= ao_storage_block;
 123                 for (; ao_log_current_pos < ao_storage_config;
 124                      ao_log_current_pos += sizeof (struct ao_log_telescience))
 125                 {
 126                         if (!ao_log_telescience_read(ao_log_current_pos))
 127                                 break;
 128                 }
 129         }
 130 }
 131
 132 void
 133 ao_log_telescience(void)
 134 {
 135         ao_storage_setup();
 136
 137         /* This can take a while, so let the rest
 138          * of the system finish booting before we start
 139          */
 140         ao_delay(AO_SEC_TO_TICKS(10));
 141
 142         ao_log_restart();
 143         for (;;) {
 144                 while (!ao_log_running)
 145                         ao_sleep(&ao_log_running);
 146
 147                 ao_log_start_pos = ao_log_current_pos;
 148                 ao_log_store.type = AO_LOG_TELESCIENCE_START;
 149                 ao_log_store.tick = ao_time();
 150                 ao_log_store.adc[0] = ao_companion_command.serial;
 151                 ao_log_store.adc[1] = ao_companion_command.flight;
 152                 ao_log_telescience_write();
 153                 /* Write the whole contents of the ring to the log
 154                  * when starting up.
 155                  */
 156                 ao_log_adc_pos = ao_adc_ring_next(ao_adc_head);
 157                 ao_log_store.type = AO_LOG_TELESCIENCE_DATA;
 158                 while (ao_log_running) {
 159                         /* Write samples to EEPROM */
 160                         while (ao_log_adc_pos != ao_adc_head) {
 161                                 ao_log_store.tick = ao_adc_ring[ao_log_adc_pos].tick;
 162                                 memcpy(&ao_log_store.adc, (void *) ao_adc_ring[ao_log_adc_pos].adc,
 163                                        AO_LOG_TELESCIENCE_NUM_ADC * sizeof (uint16_t));
 164                                 ao_log_telescience_write();
 165                                 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
 166                         }
 167                         /* Wait for more ADC data to arrive */
 168                         ao_sleep((void *) &ao_adc_head);
 169                 }
 170                 memset(&ao_log_store.adc, '\0', sizeof (ao_log_store.adc));
 171         }
 172 }
 173
 174 void
 175 ao_log_set(void)
 176 {
 177         printf("Logging currently %s\n", ao_log_running ? "on" : "off");
 178         ao_cmd_hex();
 179         if (ao_cmd_status == ao_cmd_success) {
 180                 if (ao_cmd_lex_i) {
 181                         printf("Logging from %ld to %ld\n", ao_log_current_pos, ao_log_end_pos);
 182                         ao_log_start();
 183                 } else {
 184                         printf ("Log stopped at %ld\n", ao_log_current_pos);
 185                         ao_log_stop();
 186                 }
 187         }
 188         ao_cmd_status = ao_cmd_success;
 189 }
 190
 191 void
 192 ao_log_list(void)
 193 {
 194         uint32_t        pos;
 195         uint32_t        start = 0;
 196         uint8_t         flight = 0;
 197
 198         for (pos = 0; ; pos += sizeof (struct ao_log_telescience)) {
 199                 if (pos >= ao_storage_config ||
 200                     !ao_log_telescience_read(pos) ||
 201                     ao_log_fetch.type == AO_LOG_TELESCIENCE_START)
 202                 {
 203                         if (pos != start) {
 204                                 printf("flight %d start %x end %x\n",
 205                                        flight,
 206                                        (uint16_t) (start >> 8),
 207                                        (uint16_t) ((pos + 0xff) >> 8)); flush();
 208                         }
 209                         if (ao_log_fetch.type != AO_LOG_TELESCIENCE_START)
 210                                 break;
 211                         start = pos;
 212                         flight++;
 213                 }
 214         }
 215         printf ("done\n");
 216 }
 217
 218 void
 219 ao_log_delete(void)
 220 {
 221         uint32_t        pos;
 222
 223         ao_cmd_hex();
 224         if (ao_cmd_status != ao_cmd_success)
 225                 return;
 226         if (ao_cmd_lex_i != 1) {
 227                 ao_cmd_status = ao_cmd_syntax_error;
 228                 printf("No such flight: %d\n", ao_cmd_lex_i);
 229                 return;
 230         }
 231         ao_log_stop();
 232         for (pos = 0; pos < ao_storage_config; pos += ao_storage_block) {
 233                 if (!ao_log_telescience_read(pos))
 234                         break;
 235                 ao_storage_erase(pos);
 236         }
 237         ao_log_current_pos = ao_log_start_pos = 0;
 238         if (pos == 0)
 239                 printf("No such flight: %d\n", ao_cmd_lex_i);
 240         else
 241                 printf ("Erased\n");
 242 }
 243
 244 static void
 245 ao_log_query(void)
 246 {
 247         printf("Logging enabled: %d\n", ao_log_running);
 248         printf("Log start: %ld\n", ao_log_start_pos);
 249         printf("Log cur: %ld\n", ao_log_current_pos);
 250         printf("Log end: %ld\n", ao_log_end_pos);
 251         printf("log data tick: %04x\n", ao_log_store.tick);
 252         printf("TM data tick: %04x\n", ao_log_store.tm_tick);
 253         printf("TM state: %d\n", ao_log_store.tm_state);
 254         printf("TM serial: %d\n", ao_companion_command.serial);
 255         printf("TM flight: %d\n", ao_companion_command.flight);
 256 }
 257
 258 const struct ao_cmds ao_log_cmds[] = {
 259         { ao_log_set,   "L <0 off, 1 on>\0Set logging mode" },
 260         { ao_log_list,  "l\0List stored flight logs" },
 261         { ao_log_delete, "d 1\0Delete all stored flights" },
 262         { ao_log_query, "q\0Query log status" },
 263         { 0,    NULL },
 264 };
 265
 266 void
 267 ao_log_init(void)
 268 {
 269         ao_log_running = 0;
 270
 271         ao_cmd_register(&ao_log_cmds[0]);
 272
 273         ao_add_task(&ao_log_task, ao_log_telescience, "log");
 274 }