Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include "SIM_config.h"
       4             : 
       5             : #if AP_SIM_JEDEC_ENABLED
       6             : 
       7             : #include "SIM_SPIDevice.h"
       8             : 
       9             : namespace SITL {
      10             : 
      11             : class JEDEC : public SPIDevice
      12             : {
      13             : public:
      14             : 
      15             :     int rdwr(uint8_t count, SPI::spi_ioc_transfer *&data) override;
      16             : 
      17             : protected:
      18             : 
      19             :     virtual void fill_rdid(uint8_t *buf, uint8_t len) = 0;
      20             :     virtual void fill_rdsr(uint8_t *buf, uint8_t len) = 0;
      21             :     virtual const char *filename() const = 0;
      22             :     virtual uint8_t get_num_blocks() const = 0;
      23             :     virtual uint16_t get_page_per_block() const = 0;
      24             :     virtual uint8_t get_page_per_sector() const = 0;
      25             :     virtual uint16_t get_page_size() const = 0;
      26      230879 :     uint32_t get_storage_size() const { return get_num_pages()*get_page_size(); } // in bytes
      27      230879 :     uint32_t get_num_pages() const { return get_num_blocks()*get_page_per_block(); }
      28             : 
      29             : private:
      30             : 
      31             :     enum class State {
      32             :         WAITING,
      33             :         READING_RDID,
      34             :         READING,
      35             :         WRITING,
      36             :         READING_RDSR
      37             :     } state = State::WAITING;
      38             : 
      39             :     bool write_enabled;
      40             :     uint32_t xfr_addr;
      41             : 
      42             :     void sector4k_erase(uint32_t addr);
      43             :     void block64k_erase(uint32_t addr);
      44             :     void page_erase(uint32_t addr);
      45             :     void bulk_erase();
      46             :     uint32_t parse_addr(uint8_t *buffer, uint32_t len);
      47             :     void assert_writes_enabled();
      48             :     void open_storage_fd();
      49             :     int storage_fd = -1;
      50             : };
      51             : 
      52             : }
      53             : 
      54             : #endif  // AP_SIM_JEDEC_ENABLED