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-rw-r--r--kernel/devices/src/storage/RAMDisk/RAMDiskDevice.cpp34
1 files changed, 33 insertions, 1 deletions
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 <kstd/print>
+
+#include <cstddef>
+
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<std::byte *>(m_data_start) + offset;
+ for (size_t i = 0; i < block_size; ++i)
+ {
+ kstd::println("address: {}, value: {}", source + i, std::to_integer<unsigned int>(*(source + i)));
+ }
+ // std::memcpy(buffer, source, block_size);
+ }
} // namespace devices::storage::ram_disk \ No newline at end of file