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xemu/hw/xbox/xid.c

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/*
* QEMU USB XID Devices
*
* Copyright (c) 2013 espes
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "hw/hw.h"
#include "ui/console.h"
#include "hw/usb.h"
#include "hw/usb/desc.h"
//#define DEBUG_XID
#ifdef DEBUG_XID
#define DPRINTF printf
#else
#define DPRINTF(...)
#endif
/*
* http://xbox-linux.cvs.sourceforge.net/viewvc/xbox-linux/kernel-2.6/drivers/usb/input/xpad.c
* http://euc.jp/periphs/xbox-controller.en.html
* http://euc.jp/periphs/xbox-pad-desc.txt
*/
#define USB_CLASS_XID 0x58
#define USB_DT_XID 0x42
#define HID_GET_REPORT 0x01
#define HID_SET_REPORT 0x09
#define XID_GET_CAPABILITIES 0x01
typedef struct XIDDesc {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdXid;
uint8_t bType;
uint8_t bSubType;
uint8_t bMaxInputReportSize;
uint8_t bMaxOutputReportSize;
uint16_t wAlternateProductIds[4];
} QEMU_PACKED XIDDesc;
typedef struct XIDGamepadReport {
uint8_t bReportId;
uint8_t bLength;
uint16_t wButtons;
uint8_t bAnalogButtons[8];
int16_t sThumbLX;
int16_t sThumbLY;
int16_t sThumbRX;
int16_t sThumbRY;
} QEMU_PACKED XIDGamepadReport;
typedef struct USBXIDState {
USBDevice dev;
USBEndpoint *intr;
const XIDDesc *xid_desc;
QEMUPutKbdEntry *kbd_entry;
XIDGamepadReport in_state;
} USBXIDState;
static const USBDescIface desc_iface_xbox_gamepad = {
.bInterfaceNumber = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_XID,
.bInterfaceSubClass = 0x42,
.bInterfaceProtocol = 0x00,
.eps = (USBDescEndpoint[]) {
{
.bEndpointAddress = USB_DIR_IN | 0x02,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 0x20,
.bInterval = 4,
},
{
.bEndpointAddress = USB_DIR_OUT | 0x02,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 0x20,
.bInterval = 4,
},
},
};
static const USBDescDevice desc_device_xbox_gamepad = {
.bcdUSB = 0x0110,
.bMaxPacketSize0 = 0x40,
.bNumConfigurations = 1,
.confs = (USBDescConfig[]) {
{
.bNumInterfaces = 1,
.bConfigurationValue = 1,
.bmAttributes = 0x80,
.bMaxPower = 50,
.nif = 1,
.ifs = &desc_iface_xbox_gamepad,
},
},
};
static const USBDesc desc_xbox_gamepad = {
.id = {
.idVendor = 0x045e,
.idProduct = 0x0202,
.bcdDevice = 0x0100,
},
.full = &desc_device_xbox_gamepad,
};
static const XIDDesc desc_xid_xbox_gamepad = {
.bLength = 0x10,
.bDescriptorType = USB_DT_XID,
.bcdXid = 1,
.bType = 1,
.bSubType = 1,
.bMaxInputReportSize = 0x20,
.bMaxOutputReportSize = 0x6,
.wAlternateProductIds = {-1, -1, -1, -1},
};
#define GAMEPAD_A 0
#define GAMEPAD_B 1
#define GAMEPAD_X 2
#define GAMEPAD_Y 3
#define GAMEPAD_BLACK 4
#define GAMEPAD_WHITE 5
#define GAMEPAD_LEFT_TRIGGER 6
#define GAMEPAD_RIGHT_TRIGGER 7
#define GAMEPAD_DPAD_UP 8
#define GAMEPAD_DPAD_DOWN 9
#define GAMEPAD_DPAD_LEFT 10
#define GAMEPAD_DPAD_RIGHT 11
#define GAMEPAD_START 12
#define GAMEPAD_BACK 13
#define GAMEPAD_LEFT_THUMB 14
#define GAMEPAD_RIGHT_THUMB 15
static const int gamepad_mapping[] = {
[0 ... Q_KEY_CODE_MAX] = -1,
[Q_KEY_CODE_UP] = GAMEPAD_DPAD_UP,
[Q_KEY_CODE_KP_8] = GAMEPAD_DPAD_UP,
[Q_KEY_CODE_DOWN] = GAMEPAD_DPAD_DOWN,
[Q_KEY_CODE_KP_2] = GAMEPAD_DPAD_DOWN,
[Q_KEY_CODE_LEFT] = GAMEPAD_DPAD_LEFT,
[Q_KEY_CODE_KP_4] = GAMEPAD_DPAD_LEFT,
[Q_KEY_CODE_RIGHT] = GAMEPAD_DPAD_RIGHT,
[Q_KEY_CODE_KP_6] = GAMEPAD_DPAD_RIGHT,
[Q_KEY_CODE_RET] = GAMEPAD_START,
[Q_KEY_CODE_BACKSPACE] = GAMEPAD_BACK,
[Q_KEY_CODE_Z] = GAMEPAD_A,
[Q_KEY_CODE_X] = GAMEPAD_B,
[Q_KEY_CODE_A] = GAMEPAD_X,
[Q_KEY_CODE_S] = GAMEPAD_Y,
};
static void xbox_gamepad_keyboard_event(void *opaque, int keycode)
{
USBXIDState *s = opaque;
bool up = keycode & 0x80;
QKeyCode code = index_from_keycode(keycode & 0x7f);
if (code >= Q_KEY_CODE_MAX) return;
int button = gamepad_mapping[code];
DPRINTF("xid keyboard_event %x - %d %d %d\n", keycode, code, button, up);
uint16_t mask;
switch (button) {
case GAMEPAD_A ... GAMEPAD_RIGHT_TRIGGER:
s->in_state.bAnalogButtons[button] = up?0:0xff;
break;
case GAMEPAD_DPAD_UP ... GAMEPAD_RIGHT_THUMB:
mask = (1 << (button-GAMEPAD_DPAD_UP));
s->in_state.wButtons &= ~mask;
if (!up) s->in_state.wButtons |= mask;
break;
default:
break;
}
}
static void usb_xid_handle_reset(USBDevice *dev)
{
DPRINTF("xid reset\n");
}
static void usb_xid_handle_control(USBDevice *dev, USBPacket *p,
int request, int value, int index, int length, uint8_t *data)
{
USBXIDState *s = DO_UPCAST(USBXIDState, dev, dev);
DPRINTF("xid handle_control %x %x\n", request, value);
int ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
if (ret >= 0) {
return;
}
switch (request) {
/* HID requests */
case ClassInterfaceRequest | HID_GET_REPORT:
DPRINTF("xid GET_REPORT %x\n", value);
if (value == 0x100) { /* input */
assert(s->in_state.bLength <= length);
memcpy(data, &s->in_state, s->in_state.bLength);
p->actual_length = s->in_state.bLength;
} else {
assert(false);
}
break;
case ClassInterfaceOutRequest | HID_SET_REPORT:
DPRINTF("xid SET_REPORT %x\n", value);
assert(false);
break;
/* XID requests */
case InterfaceRequestVendor | USB_REQ_GET_DESCRIPTOR:
DPRINTF("xid GET_DESCRIPTOR %x\n", value);
if (value == 0x4200) {
assert(s->xid_desc->bLength <= length);
memcpy(data, s->xid_desc, s->xid_desc->bLength);
p->actual_length = s->xid_desc->bLength;
} else {
assert(false);
}
break;
case InterfaceRequestVendor | XID_GET_CAPABILITIES:
DPRINTF("xid XID_GET_CAPABILITIES %x\n", value);
assert(false);
break;
default:
p->status = USB_RET_STALL;
assert(false);
break;
}
}
static void usb_xid_handle_data(USBDevice *dev, USBPacket *p)
{
USBXIDState *s = DO_UPCAST(USBXIDState, dev, dev);
DPRINTF("xid handle_data %x %d %zx\n", p->pid, p->ep->nr, p->iov.size);
switch (p->pid) {
case USB_TOKEN_IN:
if (p->ep->nr == 2) {
usb_packet_copy(p, &s->in_state, s->in_state.bLength);
} else {
assert(false);
}
break;
default:
assert(false);
break;
}
}
static void usb_xid_handle_destroy(USBDevice *dev)
{
DPRINTF("xid handle_destroy\n");
}
static void usb_xid_class_initfn(ObjectClass *klass, void *data)
{
USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
uc->handle_reset = usb_xid_handle_reset;
uc->handle_control = usb_xid_handle_control;
uc->handle_data = usb_xid_handle_data;
uc->handle_destroy = usb_xid_handle_destroy;
uc->handle_attach = usb_desc_attach;
}
static int usb_xbox_gamepad_initfn(USBDevice *dev)
{
USBXIDState *s = DO_UPCAST(USBXIDState, dev, dev);
usb_desc_init(dev);
s->intr = usb_ep_get(dev, USB_TOKEN_IN, 2);
s->in_state.bLength = sizeof(s->in_state);
s->kbd_entry = qemu_add_kbd_event_handler(xbox_gamepad_keyboard_event, s);
s->xid_desc = &desc_xid_xbox_gamepad;
return 0;
}
static void usb_xbox_gamepad_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
usb_xid_class_initfn(klass, data);
uc->init = usb_xbox_gamepad_initfn;
uc->product_desc = "Microsoft Xbox Controller";
uc->usb_desc = &desc_xbox_gamepad;
//dc->vmsd = &vmstate_usb_kbd;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
}
static const TypeInfo usb_xbox_gamepad_info = {
.name = "usb-xbox-gamepad",
.parent = TYPE_USB_DEVICE,
.instance_size = sizeof(USBXIDState),
.class_init = usb_xbox_gamepad_class_initfn,
};
static void usb_xid_register_types(void)
{
type_register_static(&usb_xbox_gamepad_info);
}
type_init(usb_xid_register_types)
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