blob: 64ce4782a751efecf6dff303aa8876b2348d6a16 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#pragma once
#include <memory>
#include "driver/sdmmc_types.h"
#include "driver/sdspi_host.h"
#include "esp_err.h"
#include "esp_vfs_fat.h"
#include "ff.h"
#include "result.hpp"
#include "gpio_expander.hpp"
namespace drivers {
extern const char* kStoragePath;
class SdStorage {
public:
enum Error {
FAILED_TO_INIT,
/** We couldn't interact with the SD card at all. Is it missing? */
FAILED_TO_READ,
/** We couldn't mount the SD card. Is it formatted? */
FAILED_TO_MOUNT,
};
static auto create(GpioExpander* gpio)
-> cpp::result<std::shared_ptr<SdStorage>, Error>;
SdStorage(GpioExpander* gpio,
esp_err_t (*do_transaction)(sdspi_dev_handle_t, sdmmc_command_t*),
sdspi_dev_handle_t handle_,
std::unique_ptr<sdmmc_host_t>& host_,
std::unique_ptr<sdmmc_card_t>& card_,
FATFS* fs_);
~SdStorage();
auto HandleTransaction(sdspi_dev_handle_t handle, sdmmc_command_t* cmdinfo)
-> esp_err_t;
auto GetFs() -> FATFS*;
// Not copyable or movable.
// TODO: maybe this could be movable?
SdStorage(const SdStorage&) = delete;
SdStorage& operator=(const SdStorage&) = delete;
private:
GpioExpander* gpio_;
esp_err_t (*do_transaction_)(sdspi_dev_handle_t, sdmmc_command_t*) = nullptr;
// SPI and SD driver info
sdspi_dev_handle_t handle_;
std::unique_ptr<sdmmc_host_t> host_;
std::unique_ptr<sdmmc_card_t> card_;
// Filesystem info
FATFS* fs_ = nullptr;
};
} // namespace drivers
|
