Enable detection of keyboards attached to a UHCI controller.

build32/Makefile

@@ -23,6 +23,7 @@ SYS_OBJS = system/cpuid.o \
            system/smbus.o \
            system/smp.o \
            system/temperature.o \
+           system/uhci.o \
            system/usbhcd.o \
            system/vmem.o \
            system/xhci.o

build64/Makefile

@@ -23,6 +23,7 @@ SYS_OBJS = system/cpuid.o \
            system/smbus.o \
            system/smp.o \
            system/temperature.o \
+           system/uhci.o \
            system/usbhcd.o \
            system/vmem.o \
            system/xhci.o

system/uhci.c

@@ -1,8 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 // Copyright (C) 2021-2022 Martin Whitaker.
 
-// NOTE: This is currently untested and very unlikely to work out of the box.
-
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>

system/usbhcd.c

@@ -10,6 +10,7 @@
 
 #include "ehci.h"
 #include "ohci.h"
+#include "uhci.h"
 #include "xhci.h"
 
 #include "print.h"
@@ -660,7 +661,7 @@ static void probe_usb_controller(int bus, int dev, int func, hci_type_t controll
     // Initialise the device according to its type.
     bool keyboards_found = false;
     if (controller_type == UHCI) {
-        print_usb_info(" This controller type is not supported yet");
+        keyboards_found = uhci_init(base_addr, &usb_controllers[num_usb_controllers]);
     }
     if (controller_type == OHCI) {
         keyboards_found = ohci_init(base_addr, &usb_controllers[num_usb_controllers]);