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ECAH: Add a simple keyboard driver

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This commit is contained in:
Jcodefox 2023-12-05 00:56:23 -05:00
parent 6f061153e6
commit 0a6085061a
5 changed files with 231 additions and 16 deletions
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20
kernel/src/holeybytes/ecah.rs
View file

@ -108,6 +108,10 @@ pub fn handler(vm: &mut Vm) {
let msg = buff.pop();
info!("Recieve {:?} from Buffer({})", msg, r2);
}
5 => {
let r2 = vm.registers[2].cast::<u64>();
vm.registers[3] = hbvm::value::Value( unsafe { x86_in(r2 as u16) } as u64);
}
// 5
_ => {
log::error!("Syscall unknown {:?}{:?}", r1, vm.registers);
@ -115,6 +119,13 @@ pub fn handler(vm: &mut Vm) {
}
}
unsafe fn x86_in(address: u16) -> u32{
x86_64::instructions::port::Port::new(address).read()
}
unsafe fn x86_out(address: u16, value: u32){
x86_64::instructions::port::Port::new(address).write(value);
}
fn log_msg_handler(vm: &mut Vm, mem_addr: u64, length: usize) -> Result<(), LogError> {
// let message_length = 8 + 8 + 8;
// log::info!("Mem Addr 0x{:x?} length {}", mem_addr, length);
@ -127,8 +138,8 @@ fn log_msg_handler(vm: &mut Vm, mem_addr: u64, length: usize) -> Result<(), LogE
msg_vec.push(value);
}
let log_level = msg_vec.pop().unwrap();
let strr = String::from_utf8(msg_vec).unwrap();
match String::from_utf8(msg_vec) {
Ok (strr) => {
// use LogLevel::*;
let ll = match log_level {
0 | 48 => error!("{}", strr),
@ -140,6 +151,11 @@ fn log_msg_handler(vm: &mut Vm, mem_addr: u64, length: usize) -> Result<(), LogE
return Err(LogError::InvalidLogFormat);
}
};
}
Err(e) => {
error!("{:?}", e);
}
}
Ok(())
}

1
repbuild/src/main.rs
View file

@ -152,6 +152,7 @@ fn get_fs() -> Result<FileSystem<impl ReadWriteSeek>, io::Error> {
"target/test-programs/serial_driver.hbf",
"target/test-programs/vfs_test.hbf",
"target/test-programs/limine_framebuffer_driver.hbf",
"target/test-programs/keyboard_driver.hbf",
] {
let path = Path::new(fpath);
io::copy(

3
sysdata/limine.cfg
View file

@ -27,6 +27,9 @@ TERM_BACKDROP=008080
MODULE_PATH=boot:///main.hbf
MODULE_CMDLINE=""
MODULE_PATH=boot:///keyboard_driver.hbf
MODULE_CMDLINE=""
MODULE_PATH=boot:///vfs_test.hbf
MODULE_CMDLINE=""

199
sysdata/test-programs/keyboard_driver.rhai Normal file
View file

@ -0,0 +1,199 @@
import "sysdata/test-programs/hblib/std" as std;
fn print_register(reg){
std::Debug("-----------------");
let c0 = declabel();
let c1 = declabel();
let c2 = declabel();
let c3 = declabel();
let c4 = declabel();
let c5 = declabel();
let c6 = declabel();
let c7 = declabel();
let c8 = declabel();
let c9 = declabel();
let ca = declabel();
let cb = declabel();
let cc = declabel();
let cd = declabel();
let ce = declabel();
let cf = declabel();
let end = declabel();
cp(r32, reg);
li64(r35, 16);
let next_loop = label();
addi64(r35, r35, -1);
li64(r37, 4);
mul64(r36, r35, r37);
sru64(r34, r32, r36);
andi(r34, r34, 0xf);
li64(r33, 0);
jeq(r34, r33, c0);
addi64(r33, r33, 1);
jeq(r34, r33, c1);
addi64(r33, r33, 1);
jeq(r34, r33, c2);
addi64(r33, r33, 1);
jeq(r34, r33, c3);
addi64(r33, r33, 1);
jeq(r34, r33, c4);
addi64(r33, r33, 1);
jeq(r34, r33, c5);
addi64(r33, r33, 1);
jeq(r34, r33, c6);
addi64(r33, r33, 1);
jeq(r34, r33, c7);
addi64(r33, r33, 1);
jeq(r34, r33, c8);
addi64(r33, r33, 1);
jeq(r34, r33, c9);
addi64(r33, r33, 1);
jeq(r34, r33, ca);
addi64(r33, r33, 1);
jeq(r34, r33, cb);
addi64(r33, r33, 1);
jeq(r34, r33, cc);
addi64(r33, r33, 1);
jeq(r34, r33, cd);
addi64(r33, r33, 1);
jeq(r34, r33, ce);
addi64(r33, r33, 1);
jeq(r34, r33, cf);
std::Error("This should be an invalid state");
let next = label();
jne(r0, r35, next_loop);
jeq(r0, r0, end);
here(c0);
std::Debug("0");
jeq(r0, r0, next);
here(c1);
std::Debug("1");
jeq(r0, r0, next);
here(c2);
std::Debug("2");
jeq(r0, r0, next);
here(c3);
std::Debug("3");
jeq(r0, r0, next);
here(c4);
std::Debug("4");
jeq(r0, r0, next);
here(c5);
std::Debug("5");
jeq(r0, r0, next);
here(c6);
std::Debug("6");
jeq(r0, r0, next);
here(c7);
std::Debug("7");
jeq(r0, r0, next);
here(c8);
std::Debug("8");
jeq(r0, r0, next);
here(c9);
std::Debug("9");
jeq(r0, r0, next);
here(ca);
std::Debug("A");
jeq(r0, r0, next);
here(cb);
std::Debug("B");
jeq(r0, r0, next);
here(cc);
std::Debug("C");
jeq(r0, r0, next);
here(cd);
std::Debug("D");
jeq(r0, r0, next);
here(ce);
std::Debug("E");
jeq(r0, r0, next);
here(cf);
std::Debug("F");
jeq(r0, r0, next);
here(end);
std::Debug("-----------------");
}
fn get_keyboard_status(){
li64(r1, 5);
li64(r2, 0x64);
eca();
}
fn get_keyboard_input(){
li64(r1, 5);
li64(r2, 0x60);
eca();
}
fn is_keyup(rb, ra){
li64(rb, 15);
sru64(rb, ra, rb);
andi(rb, rb, 1);
}
fn dump_registers(){
li64(r1, 0xff);
eca();
}
fn to_ascii(rb, ra){
let str = data::str(
" 1234567890-= " +
"qwertyuiop[] " +
"asdfghjkl;'` \\" +
"zxcvbnm,./ " +
"* " +
"789-456+1230. "
);
andi(r33, ra, 0x00ff);
lra(rb, r0, str);
add64(rb, rb, r33);
ld(rb, rb, 0, 1);
}
fn display_key(ra){
andi(r33, ra, 0x00ff);
ori(r33, r33, 0x0200);
let location = 0x20000;
li64(r32, location);
st(r33, r32, 0, 2);
li64(r1, 3);
li64(r2, 1);
li64(r3, location);
li64(r4, 2);
eca();
}
fn main(){
let key_up = declabel();
let main_loop = label();
get_keyboard_status();
andi(r12, r3, 1);
li64(r13, 0x1);
jne(r13, r12, main_loop);
get_keyboard_input();
cp(r12, r3);
is_keyup(r14, r12);
jne(r0, r14, key_up);
to_ascii(r15, r12);
display_key(r15);
jeq(r0, r0, main_loop);
here(key_up);
jeq(r0, r0, main_loop);
tx();
}
main();

4
sysdata/test-programs/main.rhai
View file

@ -9,10 +9,6 @@ fn main(){
std::ipc_send(2, 0, 0);
std::ipc_make_bound_buffer(64);
std::ipc_send(3, 0, 0);
tx();
}