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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 coresystems GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "usb.h"
enum { hid_subclass_none = 0, hid_subclass_boot = 1 };
enum { hid_proto_boot = 0, hid_proto_report = 1 };
enum { hid_boot_proto_none = 0, hid_boot_proto_keyboard =
1, hid_boot_proto_mouse = 2
};
static const char *boot_protos[3] = { "(none)", "keyboard", "mouse" };
enum { GET_REPORT = 0x1, GET_IDLE = 0x2, GET_PROTOCOL = 0x3, SET_REPORT =
0x9, SET_IDLE = 0xa, SET_PROTOCOL = 0xb
};
static void
usb_hid_destroy (usbdev_t *dev)
{
}
int keypress;
char keymap[256] = {
-1, -1, -1, -1, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
'l',
'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'1', '2',
'3', '4', '5', '6', '7', '8', '9', '0', '\n', TERM_ESC,
TERM_BACKSPACE, TERM_TAB, ' ', '-', '=', '[',
']', '\\', -1, ';', '\'', '`', ',', '.', '/', -1, -1, -1, -1, -1, -1,
-1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, TERM_HOME, TERM_PPAGE, -1,
TERM_END, TERM_NPAGE, TERM_RIGHT,
TERM_LEFT, TERM_DOWN, TERM_UP, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
};
static void
usb_hid_poll (usbdev_t *dev)
{
char buf[8];
static int toggle = 0;
// hardcode to endpoint 1, 8 bytes
dev->controller->packet (dev, 1, IN, toggle, 8, buf);
toggle ^= 1;
// FIXME: manage buf[0]=special keys, too
keypress = keymap[buf[2]];
if ((keypress == -1) && (buf[2] != 0)) {
printf ("%x %x %x %x %x %x %x %x\n", buf[0], buf[1], buf[2],
buf[3], buf[4], buf[5], buf[6], buf[7]);
}
}
int (*oldhook) (void);
int
hookfunc (void)
{
int key;
if (oldhook != 0)
key = oldhook ();
if (key == -1)
key = keypress;
return key;
}
void
usb_hid_init (usbdev_t *dev)
{
configuration_descriptor_t *cd = dev->configuration;
interface_descriptor_t *interface = ((char *) cd) + cd->bLength;
if (interface->bInterfaceSubClass == hid_subclass_boot) {
printf (" supports boot interface..\n");
printf (" it's a %s\n",
boot_protos[interface->bInterfaceProtocol]);
if (interface->bInterfaceProtocol == hid_boot_proto_keyboard) {
printf (" activating...\n");
dev_req_t dr;
// set_protocol(hid_proto_boot)
dr.data_dir = host_to_device;
dr.req_type = class_type;
dr.req_recp = iface_recp;
dr.bRequest = SET_PROTOCOL;
dr.wValue = hid_proto_boot;
dr.wIndex = interface->bInterfaceNumber;
dr.wLength = 0;
dev->controller->control (dev, OUT,
sizeof (dev_req_t), &dr, 0,
0);
// only add here, because we only support boot-keyboard HID devices
// FIXME: make this a real console input driver instead, once the API is there
dev->destroy = usb_hid_destroy;
dev->poll = usb_hid_poll;
oldhook = getkey_hook;
getkey_hook = hookfunc;
}
}
}
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