diff options
Diffstat (limited to 'drivers/usb/input/xpad.c')
| -rw-r--r-- | drivers/usb/input/xpad.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/drivers/usb/input/xpad.c b/drivers/usb/input/xpad.c new file mode 100644 index 000000000000..d65edb22e545 --- /dev/null +++ b/drivers/usb/input/xpad.c @@ -0,0 +1,362 @@ +/* + * X-Box gamepad - v0.0.5 + * + * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de> + * + * + * 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 of + * the License, or (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + * This driver is based on: + * - information from http://euc.jp/periphs/xbox-controller.ja.html + * - the iForce driver drivers/char/joystick/iforce.c + * - the skeleton-driver drivers/usb/usb-skeleton.c + * + * Thanks to: + * - ITO Takayuki for providing essential xpad information on his website + * - Vojtech Pavlik - iforce driver / input subsystem + * - Greg Kroah-Hartman - usb-skeleton driver + * + * TODO: + * - fine tune axes + * - fix "analog" buttons (reported as digital now) + * - get rumble working + * + * History: + * + * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller" + * + * 2002-07-02 - 0.0.2 : basic working version + * - all axes and 9 of the 10 buttons work (german InterAct device) + * - the black button does not work + * + * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik + * - indentation fixes + * - usb + input init sequence fixes + * + * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3 + * - verified the lack of HID and report descriptors + * - verified that ALL buttons WORK + * - fixed d-pad to axes mapping + * + * 2002-07-17 - 0.0.5 : simplified d-pad handling + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/input.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/smp_lock.h> +#include <linux/usb.h> + +#define DRIVER_VERSION "v0.0.5" +#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>" +#define DRIVER_DESC "X-Box pad driver" + +#define XPAD_PKT_LEN 32 + +static struct xpad_device { + u16 idVendor; + u16 idProduct; + char *name; +} xpad_device[] = { + { 0x045e, 0x0202, "Microsoft X-Box pad (US)" }, + { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" }, + { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" }, + { 0x0000, 0x0000, "X-Box pad" } +}; + +static signed short xpad_btn[] = { + BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */ + BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */ + -1 /* terminating entry */ +}; + +static signed short xpad_abs[] = { + ABS_X, ABS_Y, /* left stick */ + ABS_RX, ABS_RY, /* right stick */ + ABS_Z, ABS_RZ, /* triggers left/right */ + ABS_HAT0X, ABS_HAT0Y, /* digital pad */ + -1 /* terminating entry */ +}; + +static struct usb_device_id xpad_table [] = { + { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ + { } +}; + +MODULE_DEVICE_TABLE (usb, xpad_table); + +struct usb_xpad { + struct input_dev dev; /* input device interface */ + struct usb_device *udev; /* usb device */ + + struct urb *irq_in; /* urb for interrupt in report */ + unsigned char *idata; /* input data */ + dma_addr_t idata_dma; + + char phys[65]; /* physical device path */ + int open_count; /* reference count */ +}; + +/* + * xpad_process_packet + * + * Completes a request by converting the data into events for the + * input subsystem. + * + * The used report descriptor was taken from ITO Takayukis website: + * http://euc.jp/periphs/xbox-controller.ja.html + */ + +static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data, struct pt_regs *regs) +{ + struct input_dev *dev = &xpad->dev; + + input_regs(dev, regs); + + /* left stick */ + input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) | data[12])); + input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) | data[14])); + + /* right stick */ + input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) | data[16])); + input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) | data[18])); + + /* triggers left/right */ + input_report_abs(dev, ABS_Z, data[10]); + input_report_abs(dev, ABS_RZ, data[11]); + + /* digital pad */ + input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04)); + input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01)); + + /* start/back buttons and stick press left/right */ + input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4); + input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5); + input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6); + input_report_key(dev, BTN_THUMBR, data[2] >> 7); + + /* "analog" buttons A, B, X, Y */ + input_report_key(dev, BTN_A, data[4]); + input_report_key(dev, BTN_B, data[5]); + input_report_key(dev, BTN_X, data[6]); + input_report_key(dev, BTN_Y, data[7]); + + /* "analog" buttons black, white */ + input_report_key(dev, BTN_C, data[8]); + input_report_key(dev, BTN_Z, data[9]); + + input_sync(dev); +} + +static void xpad_irq_in(struct urb *urb, struct pt_regs *regs) +{ + struct usb_xpad *xpad = urb->context; + int retval; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + goto exit; + } + + xpad_process_packet(xpad, 0, xpad->idata, regs); + +exit: + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) + err ("%s - usb_submit_urb failed with result %d", + __FUNCTION__, retval); +} + +static int xpad_open (struct input_dev *dev) +{ + struct usb_xpad *xpad = dev->private; + + if (xpad->open_count++) + return 0; + + xpad->irq_in->dev = xpad->udev; + if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) { + xpad->open_count--; + return -EIO; + } + + return 0; +} + +static void xpad_close (struct input_dev *dev) +{ + struct usb_xpad *xpad = dev->private; + + if (!--xpad->open_count) + usb_kill_urb(xpad->irq_in); +} + +static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev (intf); + struct usb_xpad *xpad = NULL; + struct usb_endpoint_descriptor *ep_irq_in; + char path[64]; + int i; + + for (i = 0; xpad_device[i].idVendor; i++) { + if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) && + (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct)) + break; + } + + if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) { + err("cannot allocate memory for new pad"); + return -ENOMEM; + } + memset(xpad, 0, sizeof(struct usb_xpad)); + + xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN, + SLAB_ATOMIC, &xpad->idata_dma); + if (!xpad->idata) { + kfree(xpad); + return -ENOMEM; + } + + xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL); + if (!xpad->irq_in) { + err("cannot allocate memory for new pad irq urb"); + usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); + kfree(xpad); + return -ENOMEM; + } + + ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; + + usb_fill_int_urb(xpad->irq_in, udev, + usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), + xpad->idata, XPAD_PKT_LEN, xpad_irq_in, + xpad, ep_irq_in->bInterval); + xpad->irq_in->transfer_dma = xpad->idata_dma; + xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + xpad->udev = udev; + + xpad->dev.id.bustype = BUS_USB; + xpad->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor); + xpad->dev.id.product = le16_to_cpu(udev->descriptor.idProduct); + xpad->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice); + xpad->dev.dev = &intf->dev; + xpad->dev.private = xpad; + xpad->dev.name = xpad_device[i].name; + xpad->dev.phys = xpad->phys; + xpad->dev.open = xpad_open; + xpad->dev.close = xpad_close; + + usb_make_path(udev, path, 64); + snprintf(xpad->phys, 64, "%s/input0", path); + + xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + + for (i = 0; xpad_btn[i] >= 0; i++) + set_bit(xpad_btn[i], xpad->dev.keybit); + + for (i = 0; xpad_abs[i] >= 0; i++) { + + signed short t = xpad_abs[i]; + + set_bit(t, xpad->dev.absbit); + + switch (t) { + case ABS_X: + case ABS_Y: + case ABS_RX: + case ABS_RY: /* the two sticks */ + xpad->dev.absmax[t] = 32767; + xpad->dev.absmin[t] = -32768; + xpad->dev.absflat[t] = 128; + xpad->dev.absfuzz[t] = 16; + break; + case ABS_Z: + case ABS_RZ: /* the triggers */ + xpad->dev.absmax[t] = 255; + xpad->dev.absmin[t] = 0; + break; + case ABS_HAT0X: + case ABS_HAT0Y: /* the d-pad */ + xpad->dev.absmax[t] = 1; + xpad->dev.absmin[t] = -1; + break; + } + } + + input_register_device(&xpad->dev); + + printk(KERN_INFO "input: %s on %s", xpad->dev.name, path); + + usb_set_intfdata(intf, xpad); + return 0; +} + +static void xpad_disconnect(struct usb_interface *intf) +{ + struct usb_xpad *xpad = usb_get_intfdata (intf); + + usb_set_intfdata(intf, NULL); + if (xpad) { + usb_kill_urb(xpad->irq_in); + input_unregister_device(&xpad->dev); + usb_free_urb(xpad->irq_in); + usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); + kfree(xpad); + } +} + +static struct usb_driver xpad_driver = { + .owner = THIS_MODULE, + .name = "xpad", + .probe = xpad_probe, + .disconnect = xpad_disconnect, + .id_table = xpad_table, +}; + +static int __init usb_xpad_init(void) +{ + int result = usb_register(&xpad_driver); + if (result == 0) + info(DRIVER_DESC ":" DRIVER_VERSION); + return result; +} + +static void __exit usb_xpad_exit(void) +{ + usb_deregister(&xpad_driver); +} + +module_init(usb_xpad_init); +module_exit(usb_xpad_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); |