Litrally almost functional PS/2 driver. #19

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peony wants to merge 32 commits from peony/ableos:master into master
2 changed files with 43 additions and 12 deletions
Showing only changes of commit 8f265ebf40 - Show all commits

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@ -18,5 +18,6 @@ Anyone who works on this should work to keep this list as small as possible/remo
- 0x03xx
- 0x04xx
- Literally all PS/2 keyboards can be handeled the exact same way. We have the capability for detecting different keyboard types, I just don't bother with it because that would litreally take months to get working.
- The device doesn't send any data while we're waiting for an `ACK`.
Supporting mice in the keyboard port and vice versa was a ***bad*** idea, but I do not regret it because it means we're "superior" to real world operating systems.

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@ -11,6 +11,7 @@ keyboard_buffer := 0
info := controller.Info.(0)
send_command := fn(port: ^controller.Port, byte: u8): void {
loop {
controller.send_byte(port, byte)
loop {
info = controller.get_info()
@ -20,6 +21,15 @@ send_command := fn(port: ^controller.Port, byte: u8): void {
input := controller.get_input()
if controller.get_port(info) != port {
if check_complete(port) == false {
port.packet[port.packet_length] = input
port.packet_length += 1
}
continue
}
if input == 0xFA {
return
} else {
break
}
}
}
@ -51,9 +61,12 @@ process := fn(port: ^controller.Port): void {
port.device.value = port.packet[0]
} else {
port.device.value = port.packet[1] | port.packet[0] << 8
send_command(port, 0xF4)
}
log.info("Identified device!\0")
log.info(string.display_int(port.device.value, format_page, 16))
} else {
log.info("KEY PRESSED\0")
}
}
@ -70,9 +83,18 @@ check_complete := fn(port: ^controller.Port): bool {
} else if port.device == devices.MOUSE_SCROLLWHEEL | port.device == devices.MOUSE_5_BUTTON {
if port.packet_length == 4 return true
} else {
log.error("Very unexpected error. Cannot handle this!\0")
if port.packet[0] == 0xE1 {
if port.packet_length == 6 {
return true
}
} else if port.packet[0] != 0xE0 {
return true
} else if port.packet_length == 2 & port.packet[1] != 0x2A & port.packet[1] != 0xB7 {
return true
} else if port.packet_length == 4 {
return true
}
}
return false
}
@ -82,6 +104,13 @@ main := fn(): void {
controller.init()
if controller.port1.exists {
controller.send_byte(&controller.port1, 0xF4)
}
if controller.port2.exists {
controller.send_byte(&controller.port2, 0xF4)
}
loop {
info = controller.get_info()
@ -98,9 +127,10 @@ main := fn(): void {
process(port)
}
input := controller.get_input()
if input == 0xAA & port.can_hot_plug {
/*if input == 0xAA & port.can_hot_plug {
port.device = devices.NO_DEVICE
}
controller.send_byte(port, 0xF4)
}*/
port.packet[port.packet_length] = input
port.packet_length += 1
if check_complete(port) {