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spiInterface.hpp: add constructor, (un)protect flash, and generic pre/post flash access methods

This commit is contained in:
Gwenhael Goavec-Merou 2021-12-22 19:05:21 +01:00
parent 7e91d97828
commit 21b44fc22f
1 changed files with 49 additions and 0 deletions
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49
src/spiInterface.hpp
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@ -18,8 +18,40 @@
class SPIInterface {
public:
SPIInterface();
SPIInterface(const std::string &filename, uint8_t verbose,
uint32_t rd_burst, bool verify);
virtual ~SPIInterface() {}
bool protect_flash(uint32_t len);
bool unprotect_flash();
/*!
* \brief write len byte into flash starting at offset,
* optionnally verify after write and unprotect
* blocks if required and allowed
* \param[in] offset: offset into flash
* \param[in] data: data to write
* \param[in] len: byte len to write
* \param[in] verify: verify flash after write
* \param[in] unprotect_flash: unprotect blocks if allowed and required
* \param[in] rd_burst: read flash by rd_burst bytes
* \param[in] verbose: verbose level
* \return false when something fails
*/
bool write(uint32_t offset, uint8_t *data, uint32_t len,
bool unprotect_flash);
/*!
* \brief read flash offset byte starting at base_addr and
* store into filename
* \param[in] filename: file to store
* \param[in] base_addr: offset into flash
* \param[in] len: byte len to read
* \param[in] rd_burst: read flash by rd_burst bytes
* \param[in] verbose: verbose level
* \return false when something fails
*/
bool dump(uint32_t base_addr, uint32_t len);
/*!
* \brief send a command, followed by len byte.
* \param[in] cmd: command/opcode to send
@ -51,5 +83,22 @@ class SPIInterface {
*/
virtual int spi_wait(uint8_t cmd, uint8_t mask, uint8_t cond,
uint32_t timeout, bool verbose = false) = 0;
protected:
/*!
* \brief prepare SPI flash access
*/
virtual bool prepare_flash_access() {return false;}
/*!
* \brief end of SPI flash access
*/
virtual bool post_flash_access() {return false;}
uint8_t _spif_verbose;
uint32_t _spif_rd_burst;
bool _spif_verify;
private:
std::string _spif_filename;
};
#endif // SRC_SPIINTERFACE_HPP_