// (C) 2018-2024 by Folkert van Heusden // Released under MIT license #include #include #include "disk_backend_esp32.h" #include "error.h" #include "log.h" static SdFat sd; disk_backend_esp32::disk_backend_esp32(const std::string & filename) : filename(filename), fh(new File32()) { } disk_backend_esp32::~disk_backend_esp32() { fh->close(); delete fh; } JsonDocument disk_backend_esp32::serialize() const { JsonDocument j; j["disk-backend-type"] = "esp32"; j["overlay"] = serialize_overlay(); // TODO store checksum of backend j["filename"] = filename; return j; } disk_backend_esp32 *disk_backend_esp32::deserialize(const JsonVariantConst j) { // TODO verify checksum of backend return new disk_backend_esp32(j["file"].as()); } void disk_backend_esp32::emit_error() { DOLOG(ll_error, true, "SdFat error: %d/%d", sd.sdErrorCode(), sd.sdErrorData()); } bool disk_backend_esp32::begin(const bool dummy) { if (!fh->open(filename.c_str(), O_RDWR)) { DOLOG(ll_error, true, "rk05: cannot open \"%s\"", filename.c_str()); emit_error(); return false; } return true; } bool disk_backend_esp32::read(const off_t offset, const size_t n, uint8_t *const target, const size_t sector_size) { DOLOG(debug, false, "disk_backend_esp32::read: read %zu bytes from offset %zu", n, offset); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, LOW); #endif if (!fh->seek(offset)) { DOLOG(ll_error, true, "seek error %s", strerror(errno)); emit_error(); return false; } yield(); ssize_t rc = fh->read(target, n); if (size_t(rc) != n) { DOLOG(ll_error, true, "fread error: %s (%zd/%zu)", strerror(errno), rc, n); emit_error(); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, HIGH); #endif return false; } yield(); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, HIGH); #endif return true; } bool disk_backend_esp32::write(const off_t offset, const size_t n, const uint8_t *const from, const size_t sector_size) { DOLOG(debug, false, "disk_backend_esp32::write: write %zu bytes to offset %zu", n, offset); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, LOW); #endif if (!fh->seek(offset)) { DOLOG(ll_error, true, "seek error %s", strerror(errno)); emit_error(); return false; } yield(); ssize_t rc = fh->write(from, n); if (size_t(rc) != n) { DOLOG(ll_error, true, "RK05 fwrite error %s (%zd/%zu)", strerror(errno), rc, n); emit_error(); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, HIGH); #endif return false; } yield(); #if defined(ESP32) && !defined(SHA2017) digitalWrite(LED_BUILTIN, HIGH); #endif return true; }