114 lines
2.2 KiB
C++
114 lines
2.2 KiB
C++
// (C) 2018-2024 by Folkert van Heusden
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// Released under MIT license
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#include <fcntl.h>
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#include <unistd.h>
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#include "disk_backend_esp32.h"
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#include "error.h"
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#include "log.h"
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static SdFat sd;
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disk_backend_esp32::disk_backend_esp32(const std::string & filename) :
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filename(filename),
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fh(new File32())
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{
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}
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disk_backend_esp32::~disk_backend_esp32()
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{
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fh->close();
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delete fh;
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}
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void disk_backend_esp32::emit_error()
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{
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DOLOG(ll_error, true, "SdFat error: %d/%d", sd.sdErrorCode(), sd.sdErrorData());
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}
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bool disk_backend_esp32::begin()
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{
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if (!fh->open(filename.c_str(), O_RDWR)) {
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DOLOG(ll_error, true, "rk05: cannot open \"%s\"", filename.c_str());
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emit_error();
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return false;
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}
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return true;
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}
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bool disk_backend_esp32::read(const off_t offset, const size_t n, uint8_t *const target)
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{
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DOLOG(debug, false, "disk_backend_esp32::read: read %zu bytes from offset %zu", n, offset);
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, LOW);
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#endif
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if (!fh->seek(offset)) {
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DOLOG(ll_error, true, "seek error %s", strerror(errno));
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emit_error();
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return false;
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}
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yield();
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ssize_t rc = fh->read(target, n);
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if (size_t(rc) != n) {
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DOLOG(ll_error, true, "fread error: %s (%zd/%zu)", strerror(errno), rc, n);
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emit_error();
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, HIGH);
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#endif
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return false;
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}
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yield();
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, HIGH);
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#endif
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return true;
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}
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bool disk_backend_esp32::write(const off_t offset, const size_t n, const uint8_t *const from)
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{
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DOLOG(debug, false, "disk_backend_esp32::write: write %zu bytes to offset %zu", n, offset);
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, LOW);
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#endif
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if (!fh->seek(offset)) {
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DOLOG(ll_error, true, "seek error %s", strerror(errno));
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emit_error();
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return false;
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}
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yield();
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ssize_t rc = fh->write(from, n);
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if (size_t(rc) != n) {
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DOLOG(ll_error, true, "RK05 fwrite error %s (%zd/%zu)", strerror(errno), rc, n);
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emit_error();
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, HIGH);
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#endif
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return false;
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}
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yield();
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#if defined(ESP32) && !defined(SHA2017)
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digitalWrite(LED_BUILTIN, HIGH);
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#endif
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return true;
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}
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