feat(riscv platform vf2): vf2 platform adapted to riscv architecture

kernel/Cargo.toml

@@ -98,6 +98,7 @@ x86_64 = "=0.14.10"
 riscv = { git = "https://git.mirrors.dragonos.org.cn/DragonOS-Community/riscv.git", rev = "4241a97", features = [
     "s-mode",
 ] }
+byte-slice-cast = { version = "1.2.2", default-features = false }
 sbi-rt = { version = "=0.0.3", features = ["legacy"] }
 
 # target为loongarch64时，使用下面的依赖

kernel/src/arch/riscv64/driver/mod.rs

@@ -1,2 +1,3 @@
 pub mod of;
 pub mod sbi;
+pub mod vf2;

kernel/src/arch/riscv64/driver/sbi.rs

@@ -20,15 +20,23 @@ use core::ptr::addr_of;
 /// console_putstr(message);
 /// ```
 pub fn console_putstr(s: &[u8]) {
-    if SbiDriver::extensions().contains(SBIExtensions::CONSOLE) {
-        for c in s {
-            sbi_rt::console_write_byte(*c);
-        }
-        return;
-    } else {
-        for c in s {
-            #[allow(deprecated)]
-            sbi_rt::legacy::console_putchar(*c as usize);
+    // 原本的是适配opensbi的, 但是对rustsbi的适配存在问题, 不能正确的解析'\r'
+    for &c in s {
+        match c {
+            b'\n' => {
+                #[allow(deprecated)]
+                sbi_rt::legacy::console_putchar(b'\r' as usize);
+                #[allow(deprecated)]
+                sbi_rt::legacy::console_putchar(b'\n' as usize);
+            }
+            b'\r' => {
+                #[allow(deprecated)]
+                sbi_rt::legacy::console_putchar(b'\r' as usize);
+            }
+            _ => {
+                #[allow(deprecated)]
+                sbi_rt::legacy::console_putchar(c as usize);
+            }
         }
     }
 }

kernel/src/arch/riscv64/driver/vf2/dw_mshc/dma.rs

@@ -0,0 +1,63 @@
+use bitfield_struct::bitfield;
+
+#[bitfield(u32)]
+pub struct DES0 {
+    _reserved0: bool,
+    disable_interrupt_on_completion: bool,
+    last_decriptor: bool,
+    first_descriptor: bool,
+    second_address_chained: bool,
+    end_of_ring: bool,
+    #[bits(24)]
+    _reserved1: usize,
+    card_error_summary: bool,
+
+    // Is owned by the card.
+    own: bool,
+}
+#[bitfield(u32)]
+pub struct DES1 {
+    #[bits(13)]
+    buffer_1_size: usize,
+    #[bits(13)]
+    buffer_2_size: usize,
+    #[bits(6)]
+    _reserved0: usize,
+}
+#[bitfield(u32)]
+pub struct DES2 {
+    #[bits(32)]
+    pub buffer_addr1: usize,
+}
+#[bitfield(u32)]
+pub struct DES3 {
+    #[bits(32)]
+    pub buffer_addr2: usize,
+}
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Descriptor {
+    pub des0: DES0,
+    pub des1: DES1,
+    pub des2: DES2,
+    pub des3: DES3,
+}
+
+#[allow(dead_code)]
+impl Descriptor {
+    pub fn new(size: usize, buffer_paddr: usize, next_paddr: usize) -> Self {
+        Descriptor {
+            des0: DES0::new().with_second_address_chained(true).with_own(true),
+            des1: DES1::new().with_buffer_1_size(size),
+            des2: DES2::new().with_buffer_addr1(buffer_paddr),
+            des3: DES3::new().with_buffer_addr2(next_paddr),
+        }
+    }
+    pub fn own_by_card(&self) -> bool {
+        self.des0.own()
+    }
+    pub fn set_own_by_card(&mut self) {
+        self.des0.set_own(true);
+    }
+}