Fix compilation errors in drivers

Signed-off-by: Harry Chen <i@harrychen.xyz>

kernel/Cargo.lock

@@ -230,7 +230,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "mips"
 version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/Harry-Chen/rust-mips#8b8cbacb08aaaef93837d46599ce21759ef481de"
+dependencies = [
+ "bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "nodrop"
@@ -322,7 +326,7 @@ dependencies = [
  "isomorphic_drivers 0.1.0 (git+https://github.com/rcore-os/isomorphic_drivers)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mips 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mips 0.1.0 (git+https://github.com/Harry-Chen/rust-mips)",
  "once 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pc-keyboard 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pci 0.0.1 (git+https://github.com/rcore-os/pci-rs)",
@@ -622,7 +626,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
 "checksum managed 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fdcec5e97041c7f0f1c5b7d93f12e57293c831c646f4cc7a5db59460c7ea8de6"
-"checksum mips 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f79c54c0ff7e933ffe5b3ec7c3c05037b654c334b0c98e66536d2d8906435394"
+"checksum mips 0.1.0 (git+https://github.com/Harry-Chen/rust-mips)" = "<none>"
 "checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
 "checksum once 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "931fb7a4cf34610cf6cbe58d52a8ca5ef4c726d4e2e178abd0dc13a6551c6d73"
 "checksum os_bootinfo 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "66481dbeb5e773e7bd85b63cd6042c30786f834338288c5ec4f3742673db360a"

kernel/Cargo.toml

@@ -27,9 +27,9 @@ nographic = []
 board_raspi3 = ["bcm2837", "link_user"]
 raspi3_use_generic_timer = ["bcm2837/use_generic_timer"]
 # for mipsel qemu malta machine
-board_malta = []
+board_malta = ["link_user"]
 # for thinpad
-board_thinpad = []
+board_thinpad = ["link_user"]
 # Hard link user program
 link_user = []
 # Run cmdline instead of user shell, useful for automatic testing
@@ -77,7 +77,7 @@ aarch64 = { git = "https://github.com/rcore-os/aarch64" }
 bcm2837 = { git = "https://github.com/rcore-os/bcm2837", optional = true }
 
 [target.'cfg(target_arch = "mips")'.dependencies]
-mips = "^0.1.0"
+mips =  { git = "https://github.com/Harry-Chen/rust-mips" }
 
 [package.metadata.bootimage]
 default-target = "targets/x86_64.json"

kernel/src/arch/mipsel/board/malta/fb.rs

@@ -1,13 +0,0 @@
-//! stub frame buffer driver for malta board
-
-use spin::Mutex;
-
-lazy_static! {
-    pub static ref FRAME_BUFFER: Mutex<Option<Framebuffer>> = Mutex::new(None);
-}
-
-pub struct Framebuffer {}
-
-pub struct FramebufferInfo {}
-
-pub enum ColorDepth {}

kernel/src/arch/mipsel/board/malta/mod.rs

@@ -1,6 +1,8 @@
 use once::*;
+use alloc::string::String;
 
 pub mod serial;
+#[path = "../../../../drivers/gpu/fb.rs"]
 pub mod fb;
 #[path = "../../../../drivers/console/mod.rs"]
 pub mod console;
@@ -17,3 +19,7 @@ pub fn init_driver() {
     // TODO: add possibly more drivers
     // timer::init();
 }
+
+pub fn probe_fb_info(width: u32, height: u32, depth: u32) -> Result<(fb::FramebufferInfo, usize), String> {
+    Err(String::from("Framebuffer not usable on malta board"))
+}

kernel/src/arch/mipsel/board/malta/serial.rs

@@ -34,7 +34,7 @@ impl SerialPort {
     }
 
     /// non-blocking version of putchar()
-    fn putchar(&mut self, c: u8) {
+    pub fn putchar(&mut self, c: u8) {
         write(self.base + COM_TX, c);
     }
 
@@ -88,7 +88,7 @@ fn write<T>(addr: usize, content: T) {
 
 fn read<T>(addr: usize) -> T {
     let cell = (addr) as *const T;
-    read_volatile(cell);
+    read_volatile(cell)
 }
 
 

kernel/src/arch/mipsel/board/thinpad/mod.rs

@@ -19,7 +19,7 @@ pub fn init_driver() {
     // timer::init();
 }
 
-pub fn probe_fb_info(width: u32, height: u32, depth: u32) -> Result<(FramebufferInfo, u32), String> {
+pub fn probe_fb_info(width: u32, height: u32, depth: u32) -> Result<(FramebufferInfo, usize), String> {
     let fb_info = FramebufferInfo {
         xres: 800,
         yres: 600,

kernel/src/arch/mipsel/mod.rs

@@ -72,7 +72,7 @@ fn others_main() -> ! {
     crate::kmain();
 }
 
-const BOOT_CPU_ID: usize = 0;
+const BOOT_CPU_ID: u32 = 0;
 
 global_asm!(include_str!("boot/entry.S"));
 global_asm!(include_str!("boot/trap.S"));