Litrally almost functional PS/2 driver. #19

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peony wants to merge 32 commits from peony/ableos:master into master
5 changed files with 78 additions and 19 deletions
Showing only changes of commit 3d5a8f6f10 - Show all commits

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@ -1,6 +1,6 @@
# Unified PS/2 Driver
Te entire thing is heavily documented with comments because I'm not sure how else to make this understandable.
Te entire thing is held together inspite
## !!Assumptions!!
Anyone who works on this should work to keep this list as small as possible/remove as many of these as possible.
@ -16,4 +16,7 @@ Anyone who works on this should work to keep this list as small as possible/remo
- 0xFFFF
- 0x01xx
- 0x03xx
- 0x04xx
- 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.
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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@ -2,8 +2,8 @@
.{bit0, bit1, bit5, bit6, bit7} := @use("bits.hb");
.{Port, PORT_AT_STARTUP} := @use("port.hb")
port1 := PORT_AT_STARTUP
port2 := PORT_AT_STARTUP
port1 := @as(Port, PORT_AT_STARTUP)
port2 := @as(Port, PORT_AT_STARTUP)
$disable_port1 := fn(): void memory.outb(0x64, 0xAD)
$enable_port1 := fn(): void memory.outb(0x64, 0xAE)
@ -47,7 +47,7 @@ get_port := fn(info: Info): ^Port {
}
send_byte := fn(port: ^Port, byte: u8): void {
if port == port2 {
if port == &port2 {
memory.outb(0x64, 0xD4)
}
loop if can_send(get_info()) break

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@ -1,19 +1,51 @@
.{memory, log, string} := @use("../../../libraries/stn/src/lib.hb")
.{memory, log, buffer, string} := @use("../../../libraries/stn/src/lib.hb");
.{MouseEvent} := @use("../../../libraries/intouch/src/lib.hb").events;
.{bit0, bit1, bit2, bit3, bit4} := @use("bits.hb")
devices := @use("devices.hb")
controller := @use("controller.hb")
mouse := @use("mouse.hb")
format_page := memory.dangling(u8)
mouse_buffer := 0
keyboard_buffer := 0
info := controller.Info.(0)
process := fn(port: ^controller.Port): void {
if port.device == devices.MOUSE_3_BUTTON {
} else if port.device == devices.MOUSE_INIT_1 {
port.device.value = port.packet[0] | port.packet[1] << 8
if port.device == devices.MOUSE_SCROLLWHEEL {
port.device = devices.MOUSE_INIT_2
send_command := fn(port: ^controller.Port, byte: u8): void {
controller.send_byte(port, byte)
loop {
info = controller.get_info()
if controller.has_input(info) == false {
continue
}
input := controller.get_input()
if controller.get_port(info) != port {
if check_complete(port) == false {
}
}
}
}
process := fn(port: ^controller.Port): void {
if port.device.value < devices.MOUSE_5_BUTTON.value {
event := MouseEvent.(0, 0, false, false, false)
event.left = bit0(port.packet[0])
event.right = bit1(port.packet[0])
event.middle = bit2(port.packet[0])
event.x_change = @intcast(port.packet[1])
event.y_change = @intcast(port.packet[2])
buffer.write(MouseEvent, mouse_buffer, &event)
} else if port.device == devices.MOUSE_INIT_1 {
port.device.value = port.packet[0]
if port.device != devices.MOUSE_SCROLLWHEEL {
controller.send_byte(port, 0xF4)
return
}
port.device = devices.MOUSE_INIT_2
} else if port.device == devices.MOUSE_INIT_2 {
port.device.value = port.packet[0] | port.packet[1] << 8
port.device.value = port.packet[0]
} else if port.device == devices.NO_DEVICE {
if port.packet_length == 1 {
port.device.value = port.packet[0]
@ -33,11 +65,9 @@ check_complete := fn(port: ^controller.Port): bool {
} else if port.packet_length == 2 {
return true
}
}
if port.device == devices.MOUSE_3_BUTTON {
} else if port.device == devices.MOUSE_3_BUTTON {
if port.packet_length == 3 return true
}
if port.device == devices.MOUSE_SCROLLWHEEL | port.device == devices.MOUSE_5_BUTTON {
} 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")
@ -47,6 +77,7 @@ check_complete := fn(port: ^controller.Port): bool {
}
main := fn(): void {
mouse_buffer = buffer.create("PS/2 Mouse\0")
format_page = memory.alloc(u8, 1024)
controller.init()
@ -63,14 +94,18 @@ main := fn(): void {
if controller.has_input(info) {
port := controller.get_port(info)
if port.packet_length > 0 & check_complete(port) {
process(port)
}
input := controller.get_input()
if input == 0xAA & port.can_hot_plug {
port.device = devices.NO_DEVICE
}
port.packet[port.packet_length] = input
port.packet_length += 1
if @inline(check_complete, port) {
if check_complete(port) {
process(port)
port.packet_length = 0
}
}
}

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@ -0,0 +1,21 @@
Button := struct {id: u8}
$LEFT_BUTTON := Button.(1)
$RIGHT_BUTTON := Button.(2)
$MIDDLE_BUTTON := Button.(4)
$BUTTON4 := Button.(8)
$BUTTON5 := Button.(16)
SampleRate := struct {value: u8}
$SR10 := SampleRate.(10)
$SR20 := SampleRate.(20)
$SR40 := SampleRate.(40)
$SR60 := SampleRate.(60)
$SR80 := SampleRate.(80)
$SR100 := SampleRate.(100)
$SR200 := SampleRate.(200)
Resolution := struct {value: u8}
$RES_1COUNT_PER_MM := Resolution.(0)
$RES_2COUNT_PER_MM := Resolution.(1)
$RES_4COUNT_PER_MM := Resolution.(2)
$RES_8COUNT_PER_MM := Resolution.(3)

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@ -15,7 +15,7 @@ Port := packed struct {
$PORT_AT_STARTUP := Port.(
true,
NO_DEVICE,
.(0, 0, 0, 0),
.(0, 0, 0, 0, 0, 0, 0, 0),
0,
true,
)