src/main/config/parameter_group.c

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight 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 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stddef.h>
  19 #include <string.h>
  20 #include <stdint.h>
  21
  22 #include "platform.h"
  23
  24 #include "parameter_group.h"
  25 #include "common/maths.h"
  26
  27 const pgRegistry_t* pgFind(pgn_t pgn)
  28 {
  29     PG_FOREACH(reg) {
  30         if (pgN(reg) == pgn) {
  31             return reg;
  32         }
  33     }
  34     return NULL;
  35 }
  36
  37 static uint8_t *pgOffset(const pgRegistry_t* reg, uint8_t profileIndex)
  38 {
  39     const uint16_t regSize = pgSize(reg);
  40
  41     uint8_t *base = reg->address;
  42     if (!pgIsSystem(reg)) {
  43         base += (regSize * profileIndex);
  44     }
  45     return base;
  46 }
  47
  48 static void pgResetInstance(const pgRegistry_t *reg, uint8_t *base)
  49 {
  50     const uint16_t regSize = pgSize(reg);
  51
  52     memset(base, 0, regSize);
  53     if (reg->reset.ptr >= (void*)__pg_resetdata_start && reg->reset.ptr < (void*)__pg_resetdata_end) {
  54         // pointer points to resetdata section, to it is data template
  55         memcpy(base, reg->reset.ptr, regSize);
  56     } else if (reg->reset.fn) {
  57         // reset function, call it
  58         reg->reset.fn(base);
  59     }
  60 }
  61
  62 void pgReset(const pgRegistry_t* reg, int profileIndex)
  63 {
  64     pgResetInstance(reg, pgOffset(reg, profileIndex));
  65 }
  66
  67 void pgResetCurrent(const pgRegistry_t *reg)
  68 {
  69     if (pgIsSystem(reg)) {
  70         pgResetInstance(reg, reg->address);
  71     } else {
  72         pgResetInstance(reg, *reg->ptr);
  73     }
  74 }
  75
  76 bool pgResetCopy(void *copy, pgn_t pgn)
  77 {
  78     const pgRegistry_t *reg = pgFind(pgn);
  79     if (reg) {
  80         pgResetInstance(reg, copy);
  81         return true;
  82     }
  83     return false;
  84 }
  85
  86 void pgLoad(const pgRegistry_t* reg, int profileIndex, const void *from, int size, int version)
  87 {
  88     pgReset(reg, profileIndex);
  89     // restore only matching version, keep defaults otherwise
  90     if (version == pgVersion(reg)) {
  91         const int take = MIN(size, pgSize(reg));
  92         memcpy(pgOffset(reg, profileIndex), from, take);
  93     }
  94 }
  95
  96 int pgStore(const pgRegistry_t* reg, void *to, int size, uint8_t profileIndex)
  97 {
  98     const int take = MIN(size, pgSize(reg));
  99     memcpy(to, pgOffset(reg, profileIndex), take);
 100     return take;
 101 }
 102
 103
 104 void pgResetAll(int profileCount)
 105 {
 106     PG_FOREACH(reg) {
 107         if (pgIsSystem(reg)) {
 108             pgReset(reg, 0);
 109         } else {
 110             // reset one instance for each profile
 111             for (int profileIndex = 0; profileIndex < profileCount; profileIndex++) {
 112                 pgReset(reg, profileIndex);
 113             }
 114         }
 115     }
 116 }
 117
 118 void pgActivateProfile(int profileIndex)
 119 {
 120     PG_FOREACH(reg) {
 121         if (!pgIsSystem(reg)) {
 122             uint8_t *ptr = pgOffset(reg, profileIndex);
 123             *(reg->ptr) = ptr;
 124         }
 125     }
 126 }