From 47d94c6e1c0c46a9c5cdce528c8dca588a531595 Mon Sep 17 00:00:00 2001 From: Lukas Oesch Date: Sat, 28 Feb 2026 19:15:38 +0100 Subject: implement first draft of RAMDiskDevice --- .../devices/src/storage/RAMDisk/RAMDiskDevice.cpp | 34 +++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) (limited to 'kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp') diff --git a/kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp b/kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp index 8d8f51e..1e650d8 100644 --- a/kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp +++ b/kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp @@ -1,6 +1,38 @@ #include "devices/storage/RAMDisk/RAMDiskDevice.hpp" +#include "kapi/memory.hpp" +#include "kapi/system.hpp" + +#include + +#include + namespace devices::storage::ram_disk { - // TODO BA-FS26 implement ram disk device functionality + ram_disk_device::ram_disk_device(kapi::memory::linear_address data_start, size_t data_size) + : m_data_start(data_start) + , m_data_size(data_size) + {} + + auto ram_disk_device::read_block(size_t block_index, void * /*buffer*/) const -> void + { + // if (buffer == nullptr) + // { + // kapi::system::panic("[RAM DISK DEVICE] read_block called with null buffer."); + // } + + auto const offset = block_index * block_size; + if (offset + block_size > + m_data_size) // TODO BA-FS26 really correct, what if block_size doesn't divide m_data_size? + { + kapi::system::panic("[RAM DISK DEVICE] read_block out of bounds."); + } + + auto const source = static_cast(m_data_start) + offset; + for (size_t i = 0; i < block_size; ++i) + { + kstd::println("address: {}, value: {}", source + i, std::to_integer(*(source + i))); + } + // std::memcpy(buffer, source, block_size); + } } // namespace devices::storage::ram_disk \ No newline at end of file -- cgit v1.2.3