diff options
Diffstat (limited to 'src/storage.cc')
| -rw-r--r-- | src/storage.cc | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/storage.cc b/src/storage.cc index bd35780..e965589 100644 --- a/src/storage.cc +++ b/src/storage.cc @@ -260,12 +260,27 @@ bool Storage::hasData() void Storage::load(uint8_t idx, uint8_t *data) { - uint8_t page_offset; - uint8_t header[2]; i2c_read(0, 1 + idx, 1, &page_offset); - i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32, 2, header); - i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32, header[1] + 4, data); + // always read headers + i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32, 4, data); + + header[0] = data[0]; + header[1] = data[1]; + + if (header[0] & 0x0f) { + // read whole byte block + i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32 + 4, 128, data + 4); + i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32 + 4 + 128, 128, data + 4 + 128); + } else { + i2c_read(1 + (page_offset / 8), (page_offset % 8) * 32 + 4, header[1], data + 4); + } +} + +void Storage::loadChunk(uint8_t chunk, uint8_t *data) +{ + uint8_t this_page_offset = page_offset + (4 * chunk); + i2c_read(1 + (this_page_offset / 8), (this_page_offset % 8) * 32 + 4, 128, data); } void Storage::save(uint8_t *data) |