libraries/AP_Logger/AP_Logger_Flash_JEDEC.h

   1 /*
   2   logging for block based dataflash devices on SPI
   3  */
   4 #pragma once
   5
   6 #include <AP_HAL/AP_HAL.h>
   7
   8 #include "AP_Logger_Block.h"
   9
  10 #if HAL_LOGGING_FLASH_JEDEC_ENABLED
  11
  12 class AP_Logger_Flash_JEDEC : public AP_Logger_Block {
  13 public:
  14     AP_Logger_Flash_JEDEC(AP_Logger &front, LoggerMessageWriter_DFLogStart *writer) :
  15         AP_Logger_Block(front, writer) {}
  16     static AP_Logger_Backend  *probe(AP_Logger &front,
  17                                      LoggerMessageWriter_DFLogStart *ls) {
  18         return NEW_NOTHROW AP_Logger_Flash_JEDEC(front, ls);
  19     }
  20     void              Init(void) override;
  21     bool              CardInserted() const override { return !flash_died && df_NumPages > 0; }
  22
  23 private:
  24     void              BufferToPage(uint32_t PageAdr) override;
  25     void              PageToBuffer(uint32_t PageAdr) override;
  26     void              SectorErase(uint32_t SectorAdr) override;
  27     void              Sector4kErase(uint32_t SectorAdr) override;
  28     void              StartErase() override;
  29     bool              InErase() override;
  30     void              send_command_addr(uint8_t cmd, uint32_t address);
  31     void              WaitReady();
  32     bool              Busy();
  33     uint8_t           ReadStatusReg();
  34     void              Enter4ByteAddressMode(void);
  35
  36     void              WriteEnable();
  37     bool              getSectorCount(void);
  38
  39     AP_HAL::OwnPtr<AP_HAL::SPIDevice> dev;
  40     AP_HAL::Semaphore *dev_sem;
  41
  42     bool flash_died;
  43     uint32_t erase_start_ms;
  44     uint8_t erase_cmd;
  45     bool use_32bit_address;
  46     bool read_cache_valid;
  47 };
  48
  49 #endif // HAL_LOGGING_FLASH_JEDEC_ENABLED