src/main/config/config_streamer.h

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #pragma once
  22
  23 #include <stdint.h>
  24 #include <stdbool.h>
  25
  26 // Streams data out to the EEPROM, padding to the write size as
  27 // needed, and updating the checksum as it goes.
  28
  29 #ifdef CONFIG_IN_EXTERNAL_FLASH
  30 #define CONFIG_STREAMER_BUFFER_SIZE 8 // Must not be greater than the smallest flash page size of all compiled-in flash devices.
  31 typedef uint32_t config_streamer_buffer_align_type_t;
  32 #elif defined(STM32H743xx) || defined(STM32H750xx) || defined(STM32H723xx) || defined(STM32H725xx)
  33 #define CONFIG_STREAMER_BUFFER_SIZE 32  // Flash word = 256-bits
  34 typedef uint64_t config_streamer_buffer_align_type_t;
  35 #elif defined(STM32H7A3xx) || defined(STM32H7A3xxQ)
  36 #define CONFIG_STREAMER_BUFFER_SIZE 16  // Flash word = 128-bits
  37 typedef uint64_t config_streamer_buffer_align_type_t;
  38 #elif defined(STM32G4)
  39 #define CONFIG_STREAMER_BUFFER_SIZE 8   // Flash word = 64-bits
  40 typedef uint64_t config_streamer_buffer_align_type_t;
  41 #else
  42 #define CONFIG_STREAMER_BUFFER_SIZE 4
  43 typedef uint32_t config_streamer_buffer_align_type_t;
  44 #endif
  45
  46 typedef struct config_streamer_s {
  47     uintptr_t address;
  48     int size;
  49     union {
  50         uint8_t b[CONFIG_STREAMER_BUFFER_SIZE];
  51         config_streamer_buffer_align_type_t w;
  52     } buffer;
  53     int at;
  54     int err;
  55     bool unlocked;
  56 } config_streamer_t;
  57
  58 void config_streamer_init(config_streamer_t *c);
  59
  60 void config_streamer_start(config_streamer_t *c, uintptr_t base, int size);
  61 int config_streamer_write(config_streamer_t *c, const uint8_t *p, uint32_t size);
  62 int config_streamer_flush(config_streamer_t *c);
  63
  64 int config_streamer_finish(config_streamer_t *c);
  65 int config_streamer_status(config_streamer_t *c);