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authorRichard Qin <richard.qin.x@gmail.com>2026-07-10 11:31:46 +0800
committerRichard Qin <richard.qin.x@gmail.com>2026-07-10 11:31:46 +0800
commite90b72ec3082588b296956730bd2930cf8d5d671 (patch)
tree36ff6916af9b4176ea5a9662219d11e721f0b691 /include/drivers/virtio.h
parent1767d390fbf3d0c65389de46caf0b6d43ef3b6ad (diff)
downloadlume-e90b72ec3082588b296956730bd2930cf8d5d671.tar.gz
lume-e90b72ec3082588b296956730bd2930cf8d5d671.tar.xz
refactor: promote new architecture to repository root
Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.
Diffstat (limited to 'include/drivers/virtio.h')
-rw-r--r--include/drivers/virtio.h108
1 files changed, 0 insertions, 108 deletions
diff --git a/include/drivers/virtio.h b/include/drivers/virtio.h
deleted file mode 100644
index 9fda8cf..0000000
--- a/include/drivers/virtio.h
+++ /dev/null
@@ -1,108 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-// VirtIO MMIO Base Address
-#define VIRTIO0 0x10001000
-
-// MMIO Registers (Modern / Version 2)
-#define VIRTIO_MMIO_MAGIC_VALUE 0x000
-#define VIRTIO_MMIO_VERSION 0x004
-#define VIRTIO_MMIO_DEVICE_ID 0x008
-#define VIRTIO_MMIO_VENDOR_ID 0x00c
-#define VIRTIO_MMIO_DEVICE_FEATURES 0x010
-#define VIRTIO_MMIO_DEVICE_FEATURES_SEL 0x014
-#define VIRTIO_MMIO_DRIVER_FEATURES 0x020
-#define VIRTIO_MMIO_DRIVER_FEATURES_SEL 0x024
-#define VIRTIO_MMIO_QUEUE_SEL 0x030
-#define VIRTIO_MMIO_QUEUE_NUM_MAX 0x034
-#define VIRTIO_MMIO_QUEUE_NUM 0x038
-#define VIRTIO_MMIO_QUEUE_READY 0x044
-#define VIRTIO_MMIO_QUEUE_NOTIFY 0x050
-#define VIRTIO_MMIO_INTERRUPT_STATUS 0x060
-#define VIRTIO_MMIO_INTERRUPT_ACK 0x064
-#define VIRTIO_MMIO_STATUS 0x070
-
-// 64-bit Queue Address Registers (Modern)
-#define VIRTIO_MMIO_QUEUE_DESC_LOW 0x080
-#define VIRTIO_MMIO_QUEUE_DESC_HIGH 0x084
-#define VIRTIO_MMIO_QUEUE_DRIVER_LOW 0x090
-#define VIRTIO_MMIO_QUEUE_DRIVER_HIGH 0x094
-#define VIRTIO_MMIO_QUEUE_DEVICE_LOW 0x0a0
-#define VIRTIO_MMIO_QUEUE_DEVICE_HIGH 0x0a4
-
-// Status Bits
-#define VIRTIO_CONFIG_S_ACKNOWLEDGE 1
-#define VIRTIO_CONFIG_S_DRIVER 2
-#define VIRTIO_CONFIG_S_DRIVER_OK 4
-#define VIRTIO_CONFIG_S_FEATURES_OK 8
-
-// Feature Bits
-#define VIRTIO_BLK_F_RO 5
-#define VIRTIO_BLK_F_SCSI 7
-#define VIRTIO_BLK_F_CONFIG_WCE 11
-#define VIRTIO_BLK_F_MQ 12
-#define VIRTIO_F_ANY_LAYOUT 27
-#define VIRTIO_RING_F_INDIRECT_DESC 28
-#define VIRTIO_RING_F_EVENT_IDX 29
-#define VIRTIO_F_VERSION_1 32
-
-// Descriptor Flags
-#define VRING_DESC_F_NEXT 1
-#define VRING_DESC_F_WRITE 2
-
-#define NUM_DESCS 8
-
-#define VIRTIO_BLK_T_IN 0
-#define VIRTIO_BLK_T_OUT 1
-
-// Device Configuration Layout (Offset 0x100)
-#define VIRTIO_MMIO_CONFIG 0x100
-
-namespace VirtIO
-{
- struct VRingDesc
- {
- uint64 addr;
- uint32 len;
- uint16 flags;
- uint16 next;
- };
-
- struct VRingAvail
- {
- uint16 flags;
- uint16 idx;
- uint16 ring[NUM_DESCS];
- };
-
- struct VRingUsedElem
- {
- uint32 id;
- uint32 len;
- };
-
- struct VRingUsed
- {
- uint16 flags;
- uint16 idx;
- struct VRingUsedElem ring[NUM_DESCS];
- };
-
- struct __attribute__((packed)) BlockRequest
- {
- uint32 type; // 0=Read, 1=Write
- uint32 reserved;
- uint64 sector;
- };
-
- void init();
- void intr();
- void rw(int write, uint64 blockno, char *buf);
- void test_rw();
- void test_bio();
-} \ No newline at end of file