X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fao_log.c;fp=src%2Fao_log.c;h=0000000000000000000000000000000000000000;hp=6d3ad535971fff508867195c8e748ff9f161e2fd;hb=9513be7f9d3d0b0ec29f6487fa9dc8f1ac24d0de;hpb=3bfe8df44b575ca430ffaa051e20faa955a06c03 diff --git a/src/ao_log.c b/src/ao_log.c deleted file mode 100644 index 6d3ad535..00000000 --- a/src/ao_log.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * Copyright © 2009 Keith Packard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "ao.h" - -__pdata uint32_t ao_log_current_pos; -__pdata uint32_t ao_log_end_pos; -__pdata uint32_t ao_log_start_pos; -__xdata uint8_t ao_log_running; -__pdata enum flight_state ao_log_state; -__xdata uint16_t ao_flight_number; - -__code uint8_t ao_log_format = AO_LOG_FORMAT_FULL; - -void -ao_log_flush(void) -{ - ao_storage_flush(); -} - -/* - * When erasing a flight log, make sure the config block - * has an up-to-date version of the current flight number - */ - -struct ao_log_erase { - uint8_t unused; - uint16_t flight; -}; - -static __xdata struct ao_log_erase erase; - -#define LOG_MAX_ERASE 16 - -static uint32_t -ao_log_erase_pos(uint8_t i) -{ - return i * sizeof (struct ao_log_erase) + AO_STORAGE_ERASE_LOG; -} - -void -ao_log_write_erase(uint8_t pos) -{ - erase.unused = 0x00; - erase.flight = ao_flight_number; - ao_storage_write(ao_log_erase_pos(pos), &erase, sizeof (erase)); - ao_storage_flush(); -} - -static void -ao_log_read_erase(uint8_t pos) -{ - ao_storage_read(ao_log_erase_pos(pos), &erase, sizeof (erase)); -} - - -static void -ao_log_erase_mark(void) -{ - uint8_t i; - - for (i = 0; i < LOG_MAX_ERASE; i++) { - ao_log_read_erase(i); - if (erase.unused == 0 && erase.flight == ao_flight_number) - return; - if (erase.unused == 0xff) { - ao_log_write_erase(i); - return; - } - } - ao_config_put(); -} - -static uint8_t -ao_log_slots() -{ - return (uint8_t) (ao_storage_config / ao_config.flight_log_max); -} - -uint32_t -ao_log_pos(uint8_t slot) -{ - return ((slot) * ao_config.flight_log_max); -} - -static uint16_t -ao_log_max_flight(void) -{ - uint8_t log_slot; - uint8_t log_slots; - uint16_t log_flight; - uint16_t max_flight = 0; - - /* Scan the log space looking for the biggest flight number */ - log_slots = ao_log_slots(); - for (log_slot = 0; log_slot < log_slots; log_slot++) { - log_flight = ao_log_flight(log_slot); - if (!log_flight) - continue; - if (max_flight == 0 || (int16_t) (log_flight - max_flight) > 0) - max_flight = log_flight; - } - return max_flight; -} - -void -ao_log_scan(void) __reentrant -{ - uint8_t log_slot; - uint8_t log_slots; - uint8_t log_want; - - ao_config_get(); - - ao_flight_number = ao_log_max_flight(); - if (ao_flight_number) - if (++ao_flight_number == 0) - ao_flight_number = 1; - - /* Now look through the log of flight numbers from erase operations and - * see if the last one is bigger than what we found above - */ - for (log_slot = LOG_MAX_ERASE; log_slot-- > 0;) { - ao_log_read_erase(log_slot); - if (erase.unused == 0) { - if (ao_flight_number == 0 || - (int16_t) (erase.flight - ao_flight_number) > 0) - ao_flight_number = erase.flight; - break; - } - } - if (ao_flight_number == 0) - ao_flight_number = 1; - - /* With a flight number in hand, find a place to write a new log, - * use the target flight number to index the available log slots so - * that we write logs to each spot about the same number of times. - */ - - /* Find a log slot for the next flight, if available */ - ao_log_current_pos = ao_log_end_pos = 0; - log_slots = ao_log_slots(); - log_want = (ao_flight_number - 1) % log_slots; - log_slot = log_want; - do { - if (ao_log_flight(log_slot) == 0) { - ao_log_current_pos = ao_log_pos(log_slot); - ao_log_end_pos = ao_log_current_pos + ao_config.flight_log_max; - break; - } - if (++log_slot >= log_slots) - log_slot = 0; - } while (log_slot != log_want); - - ao_wakeup(&ao_flight_number); -} - -void -ao_log_start(void) -{ - /* start logging */ - ao_log_running = 1; - ao_wakeup(&ao_log_running); -} - -void -ao_log_stop(void) -{ - ao_log_running = 0; - ao_log_flush(); -} - -uint8_t -ao_log_present(void) -{ - return ao_log_max_flight() != 0; -} - -uint8_t -ao_log_full(void) -{ - return ao_log_current_pos == ao_log_end_pos; -} - -static __xdata struct ao_task ao_log_task; - -void -ao_log_list(void) __reentrant -{ - uint8_t slot; - uint8_t slots; - uint16_t flight; - - slots = ao_log_slots(); - for (slot = 0; slot < slots; slot++) - { - flight = ao_log_flight(slot); - if (flight) - printf ("flight %d start %x end %x\n", - flight, - (uint16_t) (ao_log_pos(slot) >> 8), - (uint16_t) (ao_log_pos(slot+1) >> 8)); - } - printf ("done\n"); -} - -void -ao_log_delete(void) __reentrant -{ - uint8_t slot; - uint8_t slots; - - ao_cmd_decimal(); - if (ao_cmd_status != ao_cmd_success) - return; - - slots = ao_log_slots(); - /* Look for the flight log matching the requested flight */ - if (ao_cmd_lex_i) { - for (slot = 0; slot < slots; slot++) { - if (ao_log_flight(slot) == ao_cmd_lex_i) { - ao_log_erase_mark(); - ao_log_current_pos = ao_log_pos(slot); - ao_log_end_pos = ao_log_current_pos + ao_config.flight_log_max; - while (ao_log_current_pos < ao_log_end_pos) { - uint8_t i; - static __xdata uint8_t b; - - /* - * Check to see if we've reached the end of - * the used memory to avoid re-erasing the same - * memory over and over again - */ - for (i = 0; i < 16; i++) { - if (ao_storage_read(ao_log_current_pos + i, &b, 1)) - if (b != 0xff) - break; - } - if (i == 16) - break; - ao_storage_erase(ao_log_current_pos); - ao_log_current_pos += ao_storage_block; - } - puts("Erased"); - return; - } - } - } - printf("No such flight: %d\n", ao_cmd_lex_i); -} - -__code struct ao_cmds ao_log_cmds[] = { - { ao_log_list, "l\0List flight logs" }, - { ao_log_delete, "d \0Delete flight" }, - { 0, NULL }, -}; - -void -ao_log_init(void) -{ - ao_log_running = 0; - - /* For now, just log the flight starting at the begining of eeprom */ - ao_log_state = ao_flight_invalid; - - ao_cmd_register(&ao_log_cmds[0]); - - /* Create a task to log events to eeprom */ - ao_add_task(&ao_log_task, ao_log, "log"); -}