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60 lines
1.4 KiB
60 lines
1.4 KiB
#pragma once
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#include "gpio-expander.hpp"
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#include <memory>
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#include "driver/sdmmc_types.h"
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#include "driver/sdspi_host.h"
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#include "esp_err.h"
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#include "esp_vfs_fat.h"
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#include "result.hpp"
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namespace gay_ipod {
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extern const char* kStoragePath;
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class SdStorage {
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public:
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enum Error {
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FAILED_TO_INIT,
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/** We couldn't interact with the SD card at all. Is it missing? */
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FAILED_TO_READ,
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/** We couldn't mount the SD card. Is it formatted? */
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FAILED_TO_MOUNT,
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};
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static auto create(GpioExpander* gpio)
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-> cpp::result<std::unique_ptr<SdStorage>, Error>;
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SdStorage(GpioExpander* gpio,
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esp_err_t (*do_transaction)(sdspi_dev_handle_t, sdmmc_command_t*),
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sdspi_dev_handle_t handle_,
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std::unique_ptr<sdmmc_host_t>& host_,
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std::unique_ptr<sdmmc_card_t>& card_,
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FATFS* fs_);
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~SdStorage();
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auto HandleTransaction(sdspi_dev_handle_t handle, sdmmc_command_t* cmdinfo)
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-> esp_err_t;
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// Not copyable or movable.
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// TODO: maybe this could be movable?
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SdStorage(const SdStorage&) = delete;
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SdStorage& operator=(const SdStorage&) = delete;
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private:
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GpioExpander* gpio_;
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esp_err_t (*do_transaction_)(sdspi_dev_handle_t, sdmmc_command_t*) = nullptr;
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// SPI and SD driver info
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sdspi_dev_handle_t handle_;
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std::unique_ptr<sdmmc_host_t> host_;
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std::unique_ptr<sdmmc_card_t> card_;
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// Filesystem info
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FATFS* fs_ = nullptr;
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};
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} // namespace gay_ipod
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