diff options
Diffstat (limited to 'kernel/src/devices/storage/ram_disk/device.cpp')
| -rw-r--r-- | kernel/src/devices/storage/ram_disk/device.cpp | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/kernel/src/devices/storage/ram_disk/device.cpp b/kernel/src/devices/storage/ram_disk/device.cpp deleted file mode 100644 index 1557204b..00000000 --- a/kernel/src/devices/storage/ram_disk/device.cpp +++ /dev/null @@ -1,71 +0,0 @@ -#include <kernel/devices/storage/ram_disk/device.hpp> - -#include <kernel/devices/block_device.hpp> - -#include <kapi/boot_module/boot_module.hpp> -#include <kapi/system.hpp> - -#include <kstd/cstring> -#include <kstd/string> - -#include <cstddef> - -namespace kernel::devices::storage::ram_disk -{ - namespace - { - constexpr size_t ram_disk_block_size = 512uz; - } // namespace - - device::device(kapi::boot_modules::boot_module const & module, size_t major, size_t minor) - : block_device(major, minor, "ram" + kstd::to_string(minor), ram_disk_block_size) - , m_boot_module(module) - {} - - auto device::init() -> bool - { - return m_boot_module.start_address.raw() != 0 && m_boot_module.size > 0; - } - - auto 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 info = calculate_transfer(block_index); - - if (info.to_transfer > 0) - { - auto const src = static_cast<std::byte const *>(m_boot_module.start_address) + info.offset; - kstd::libc::memcpy(buffer, src, info.to_transfer); - } - - if (info.remainder > 0) - { - kstd::libc::memset(static_cast<std::byte *>(buffer) + info.to_transfer, 0, info.remainder); - } - } - - auto device::write_block(size_t block_index, void const * buffer) -> void - { - if (buffer == nullptr) - { - kapi::system::panic("[RAM DISK DEVICE] write_block called with null buffer."); - } - - auto const info = calculate_transfer(block_index); - - if (info.to_transfer > 0) - { - auto const dest = static_cast<std::byte *>(m_boot_module.start_address) + info.offset; - kstd::libc::memcpy(dest, buffer, info.to_transfer); - } - } - - auto device::size() const -> size_t - { - return m_boot_module.size; - } -} // namespace kernel::devices::storage::ram_disk
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