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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 static uint8_t
  39 ao_log_csum(__xdata uint8_t *b) __reentrant
  40 {
  41         uint8_t sum = 0x5a;
  42         uint8_t i;
  43
  44         for (i = 0; i < sizeof (struct ao_log_telescience); i++)
  45                 sum += *b++;
  46         return -sum;
  47 }
  48
  49 static uint8_t
  50 ao_log_telescience_write(void)
  51 {
  52         uint8_t wrote = 0;
  53
  54         ao_log_store.csum = 0;
  55         ao_log_store.csum = ao_log_csum((__xdata uint8_t *) &ao_log_store);
  56         ao_mutex_get(&ao_log_mutex); {
  57                 if (ao_log_current_pos >= ao_log_end_pos && ao_log_running)
  58                         ao_log_stop();
  59                 if (ao_log_running) {
  60                         wrote = 1;
  61                         ao_storage_write(ao_log_current_pos,
  62                                          (__xdata uint8_t *) &ao_log_store,
  63                                          sizeof (struct ao_log_telescience));
  64                         ao_log_current_pos += sizeof (struct ao_log_telescience);
  65                 }
  66         } ao_mutex_put(&ao_log_mutex);
  67         return wrote;
  68 }
  69
  70 static uint8_t
  71 ao_log_valid(struct ao_log_telescience *log)
  72 {
  73         uint8_t *d;
  74         uint8_t i;
  75         d = (uint8_t *) log;
  76         for (i = 0; i < sizeof (struct ao_log_telescience); i++)
  77                 if (d[i] != 0xff)
  78                         return 1;
  79         return 0;
  80 }
  81
  82 static uint8_t
  83 ao_log_telescience_read(uint32_t pos)
  84 {
  85         if (!ao_storage_read(pos, &ao_log_fetch, sizeof (struct ao_log_telescience)))
  86                 return 0;
  87         return ao_log_valid(&ao_log_fetch);
  88 }
  89
  90 void
  91 ao_log_start(void)
  92 {
  93         if (!ao_log_running) {
  94                 ao_log_running = 1;
  95                 ao_wakeup(&ao_log_running);
  96         }
  97 }
  98
  99 void
 100 ao_log_stop(void)
 101 {
 102         if (ao_log_running) {
 103                 ao_log_running = 0;
 104         }
 105 }
 106
 107 void
 108 ao_log_restart(void)
 109 {
 110         printf("Finding end of current data...\n"); flush();
 111         /* Find end of data */
 112         ao_log_end_pos = ao_storage_config;
 113         for (ao_log_current_pos = 0;
 114              ao_log_current_pos < ao_storage_config;
 115              ao_log_current_pos += ao_storage_block)
 116         {
 117                 printf("reading %ld\n", ao_log_current_pos); flush();
 118                 if (!ao_log_telescience_read(ao_log_current_pos))
 119                         break;
 120         }
 121         printf("last block is at %ld\n", ao_log_current_pos); flush();
 122         if (ao_log_current_pos > 0) {
 123                 ao_log_current_pos -= ao_storage_block;
 124                 for (; ao_log_current_pos < ao_storage_config;
 125                      ao_log_current_pos += sizeof (struct ao_log_telescience))
 126                 {
 127                         if (!ao_log_telescience_read(ao_log_current_pos))
 128                                 break;
 129                 }
 130         }
 131         printf("Logging will start at %ld\n", ao_log_current_pos); flush();
 132 }
 133
 134 void
 135 ao_log_telescience(void)
 136 {
 137         ao_storage_setup();
 138
 139         /* This can take a while, so let the rest
 140          * of the system finish booting before we start
 141          */
 142         ao_delay(AO_SEC_TO_TICKS(10));
 143
 144         ao_log_restart();
 145         for (;;) {
 146                 while (!ao_log_running)
 147                         ao_sleep(&ao_log_running);
 148
 149                 ao_log_start_pos = ao_log_current_pos;
 150                 printf("Start logging at %ld state %d\n",
 151                        ao_log_current_pos, ao_log_store.tm_state); flush();
 152                 ao_log_store.type = AO_LOG_TELESCIENCE_START;
 153                 ao_log_store.tick = ao_time();
 154                 ao_log_telescience_write();
 155                 /* Write the whole contents of the ring to the log
 156                  * when starting up.
 157                  */
 158                 ao_log_adc_pos = ao_adc_ring_next(ao_adc_head);
 159                 ao_log_store.type = AO_LOG_TELESCIENCE_DATA;
 160                 while (ao_log_running) {
 161                         /* Write samples to EEPROM */
 162                         while (ao_log_adc_pos != ao_adc_head) {
 163                                 ao_log_store.tick = ao_adc_ring[ao_log_adc_pos].tick;
 164                                 memcpy(&ao_log_store.adc, (void *) ao_adc_ring[ao_log_adc_pos].adc,
 165                                        NUM_ADC * sizeof (uint16_t));
 166                                 ao_log_telescience_write();
 167                                 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
 168                         }
 169                         /* Wait for more ADC data to arrive */
 170                         ao_sleep((void *) &ao_adc_head);
 171                 }
 172                 printf("Stop logging at %ld state %d\n",
 173                        ao_log_current_pos, ao_log_store.tm_state); flush();
 174                 memset(&ao_log_store.adc, '\0', sizeof (ao_log_store.adc));
 175         }
 176 }
 177
 178 void
 179 ao_log_set(void)
 180 {
 181         printf("Logging currently %s\n", ao_log_running ? "on" : "off");
 182         ao_cmd_hex();
 183         if (ao_cmd_status == ao_cmd_success) {
 184                 if (ao_cmd_lex_i) {
 185                         printf("Logging from %ld to %ld\n", ao_log_current_pos, ao_log_end_pos);
 186                         ao_log_start();
 187                 } else {
 188                         printf ("Log stopped at %ld\n", ao_log_current_pos);
 189                         ao_log_stop();
 190                 }
 191         }
 192         ao_cmd_status = ao_cmd_success;
 193 }
 194
 195 void
 196 ao_log_list(void)
 197 {
 198         uint32_t        pos;
 199         uint32_t        start = 0;
 200         uint8_t         flight = 0;
 201
 202         for (pos = 0; ; pos += sizeof (struct ao_log_telescience)) {
 203                 if (pos >= ao_storage_config ||
 204                     !ao_log_telescience_read(pos) ||
 205                     ao_log_fetch.type == AO_LOG_TELESCIENCE_START)
 206                 {
 207                         if (pos != start) {
 208                                 printf("flight %d start %x end %x\n",
 209                                        flight,
 210                                        (uint16_t) (start >> 8),
 211                                        (uint16_t) ((pos + 0xff) >> 8)); flush();
 212                         }
 213                         if (ao_log_fetch.type != AO_LOG_TELESCIENCE_START)
 214                                 break;
 215                         start = pos;
 216                         flight++;
 217                 }
 218         }
 219         printf ("done\n");
 220 }
 221
 222 void
 223 ao_log_delete(void)
 224 {
 225         uint32_t        pos;
 226
 227         ao_cmd_hex();
 228         if (ao_cmd_status != ao_cmd_success)
 229                 return;
 230         if (ao_cmd_lex_i != 1) {
 231                 ao_cmd_status = ao_cmd_syntax_error;
 232                 printf("No such flight: %d\n", ao_cmd_lex_i);
 233                 return;
 234         }
 235         ao_log_stop();
 236         for (pos = 0; pos < ao_storage_config; pos += ao_storage_block) {
 237                 if (!ao_log_telescience_read(pos))
 238                         break;
 239                 ao_storage_erase(pos);
 240         }
 241         ao_log_current_pos = ao_log_start_pos = 0;
 242         if (pos == 0)
 243                 printf("No such flight: %d\n", ao_cmd_lex_i);
 244         else
 245                 printf ("Erased\n");
 246 }
 247
 248 static void
 249 ao_log_query(void)
 250 {
 251         printf("Logging enabled: %d\n", ao_log_running);
 252         printf("Log start: %ld\n", ao_log_start_pos);
 253         printf("Log cur: %ld\n", ao_log_current_pos);
 254         printf("Log end: %ld\n", ao_log_end_pos);
 255         printf("log data tick: %04x\n", ao_log_store.tick);
 256         printf("TM data tick: %04x\n", ao_log_store.tm_tick);
 257         printf("TM state: %d\n", ao_log_store.tm_state);
 258 }
 259
 260 const struct ao_cmds ao_log_cmds[] = {
 261         { ao_log_set,   "L <0 off, 1 on>\0Set logging mode" },
 262         { ao_log_list,  "l\0List stored flight logs" },
 263         { ao_log_delete, "d 1\0Delete all stored flights" },
 264         { ao_log_query, "q\0Query log status" },
 265         { 0,    NULL },
 266 };
 267
 268 void
 269 ao_log_init(void)
 270 {
 271         ao_log_running = 0;
 272
 273         ao_cmd_register(&ao_log_cmds[0]);
 274
 275         ao_add_task(&ao_log_task, ao_log_telescience, "log");
 276 }