52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
|
|
*/
|
|
/* This file is part of ToaruOS and is released under the terms
|
|
* of the NCSA / University of Illinois License - see LICENSE.md
|
|
* Copyright (C) 2014 Kevin Lange
|
|
*/
|
|
#include <module.h>
|
|
#include <pci.h>
|
|
#include <printf.h>
|
|
#include <logging.h>
|
|
#include <mod/shell.h>
|
|
|
|
static uint32_t hub_device = 0;
|
|
|
|
static void find_usb_device(uint32_t device, uint16_t vendorid, uint16_t deviceid, void * extra) {
|
|
if (pci_find_type(device) == 0xc03) {
|
|
int prog_if = (int)pci_read_field(device, PCI_PROG_IF, 1);
|
|
if (prog_if == 0) {
|
|
*((uint32_t *)extra)= device;
|
|
}
|
|
}
|
|
}
|
|
|
|
DEFINE_SHELL_FUNCTION(usb, "Enumerate USB devices (UHCI)") {
|
|
|
|
pci_scan(&find_usb_device, -1, &hub_device);
|
|
|
|
if (!hub_device) {
|
|
fprintf(tty, "Failed to locate a UHCI controller.\n");
|
|
return 1;
|
|
}
|
|
|
|
fprintf(tty, "Located UHCI controller: %2x:%2x.%d\n",
|
|
(int)pci_extract_bus (hub_device),
|
|
(int)pci_extract_slot(hub_device),
|
|
(int)pci_extract_func(hub_device));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int install(void) {
|
|
BIND_SHELL_FUNCTION(usb);
|
|
return 0;
|
|
}
|
|
|
|
static int uninstall(void) {
|
|
return 0;
|
|
}
|
|
|
|
MODULE_DEF(usbuhci, install, uninstall);
|
|
MODULE_DEPENDS(debugshell);
|