--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+// Driver for Xbox DVD Movie Playback Kit
+// Copyright (c) 2018 by Benjamin Valentin <benpicco@googlemail.com>
+
+/*
+ * Xbox DVD Movie Playback Kit USB IR dongle support
+ *
+ * The driver was derived from the ati_remote driver 2.2.1
+ * and used information from lirc_xbox.c
+ *
+ * Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi>
+ * Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
+ * Copyright (c) 2002 Vladimir Dergachev
+ * Copyright (c) 2003-2004 Paul Miller <pmiller9@users.sourceforge.net>
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+#include <media/rc-core.h>
+
+/*
+ * Module and Version Information
+ */
+#define DRIVER_VERSION "1.0.0"
+#define DRIVER_AUTHOR "Benjamin Valentin <benpicco@googlemail.com>"
+#define DRIVER_DESC "Xbox DVD USB Remote Control"
+
+#define NAME_BUFSIZE 80 /* size of product name, path buffers */
+#define DATA_BUFSIZE 8 /* size of URB data buffers */
+
+/*
+ * USB vendor ids for XBOX DVD Dongles
+ */
+#define VENDOR_GAMESTER 0x040b
+#define VENDOR_MICROSOFT 0x045e
+
+static const struct usb_device_id xbox_remote_table[] = {
+ /* Gamester Xbox DVD Movie Playback Kit IR */
+ {
+ USB_DEVICE(VENDOR_GAMESTER, 0x6521),
+ },
+ /* Microsoft Xbox DVD Movie Playback Kit IR */
+ {
+ USB_DEVICE(VENDOR_MICROSOFT, 0x0284),
+ },
+ {} /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, xbox_remote_table);
+
+struct xbox_remote {
+ struct rc_dev *rdev;
+ struct usb_device *udev;
+ struct usb_interface *interface;
+
+ struct urb *irq_urb;
+ unsigned char inbuf[DATA_BUFSIZE];
+
+ char rc_name[NAME_BUFSIZE];
+ char rc_phys[NAME_BUFSIZE];
+};
+
+static int xbox_remote_rc_open(struct rc_dev *rdev)
+{
+ struct xbox_remote *xbox_remote = rdev->priv;
+
+ /* On first open, submit the read urb which was set up previously. */
+ xbox_remote->irq_urb->dev = xbox_remote->udev;
+ if (usb_submit_urb(xbox_remote->irq_urb, GFP_KERNEL)) {
+ dev_err(&xbox_remote->interface->dev,
+ "%s: usb_submit_urb failed!\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void xbox_remote_rc_close(struct rc_dev *rdev)
+{
+ struct xbox_remote *xbox_remote = rdev->priv;
+
+ usb_kill_urb(xbox_remote->irq_urb);
+}
+
+/*
+ * xbox_remote_report_input
+ */
+static void xbox_remote_input_report(struct urb *urb)
+{
+ struct xbox_remote *xbox_remote = urb->context;
+ unsigned char *data = xbox_remote->inbuf;
+
+ /*
+ * data[0] = 0x00
+ * data[1] = length - always 0x06
+ * data[2] = the key code
+ * data[3] = high part of key code? - always 0x0a
+ * data[4] = last_press_ms (low)
+ * data[5] = last_press_ms (high)
+ */
+
+ /* Deal with strange looking inputs */
+ if (urb->actual_length != 6 || urb->actual_length != data[1]) {
+ dev_warn(&urb->dev->dev, "Weird data, len=%d: %*ph\n",
+ urb->actual_length, urb->actual_length, data);
+ return;
+ }
+
+ rc_keydown(xbox_remote->rdev, RC_PROTO_UNKNOWN, data[2], 0);
+}
+
+/*
+ * xbox_remote_irq_in
+ */
+static void xbox_remote_irq_in(struct urb *urb)
+{
+ struct xbox_remote *xbox_remote = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0: /* success */
+ xbox_remote_input_report(urb);
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ dev_dbg(&xbox_remote->interface->dev,
+ "%s: urb error status, unlink?\n",
+ __func__);
+ return;
+ default: /* error */
+ dev_dbg(&xbox_remote->interface->dev,
+ "%s: Nonzero urb status %d\n",
+ __func__, urb->status);
+ }
+
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&xbox_remote->interface->dev,
+ "%s: usb_submit_urb()=%d\n",
+ __func__, retval);
+}
+
+static void xbox_remote_rc_init(struct xbox_remote *xbox_remote)
+{
+ struct rc_dev *rdev = xbox_remote->rdev;
+
+ rdev->priv = xbox_remote;
+ rdev->allowed_protocols = RC_PROTO_BIT_UNKNOWN;
+ rdev->driver_name = "xbox_remote";
+
+ rdev->open = xbox_remote_rc_open;
+ rdev->close = xbox_remote_rc_close;
+
+ rdev->device_name = xbox_remote->rc_name;
+ rdev->input_phys = xbox_remote->rc_phys;
+
+ usb_to_input_id(xbox_remote->udev, &rdev->input_id);
+ rdev->dev.parent = &xbox_remote->interface->dev;
+}
+
+static int xbox_remote_initialize(struct xbox_remote *xbox_remote,
+ struct usb_endpoint_descriptor *endpoint_in)
+{
+ struct usb_device *udev = xbox_remote->udev;
+ int pipe, maxp;
+
+ /* Set up irq_urb */
+ pipe = usb_rcvintpipe(udev, endpoint_in->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
+
+ usb_fill_int_urb(xbox_remote->irq_urb, udev, pipe, xbox_remote->inbuf,
+ maxp, xbox_remote_irq_in, xbox_remote,
+ endpoint_in->bInterval);
+
+ return 0;
+}
+
+/*
+ * xbox_remote_probe
+ */
+static int xbox_remote_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_host_interface *iface_host = interface->cur_altsetting;
+ struct usb_endpoint_descriptor *endpoint_in;
+ struct xbox_remote *xbox_remote;
+ struct rc_dev *rc_dev;
+ int err = -ENOMEM;
+
+ // why is there also a device with no endpoints?
+ if (iface_host->desc.bNumEndpoints == 0)
+ return -ENODEV;
+
+ if (iface_host->desc.bNumEndpoints != 1) {
+ pr_err("%s: Unexpected desc.bNumEndpoints: %d\n",
+ __func__, iface_host->desc.bNumEndpoints);
+ return -ENODEV;
+ }
+
+ endpoint_in = &iface_host->endpoint[0].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint_in)) {
+ pr_err("%s: Unexpected endpoint_in\n", __func__);
+ return -ENODEV;
+ }
+ if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
+ pr_err("%s: endpoint_in message size==0?\n", __func__);
+ return -ENODEV;
+ }
+
+ xbox_remote = kzalloc(sizeof(*xbox_remote), GFP_KERNEL);
+ rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
+ if (!xbox_remote || !rc_dev)
+ goto exit_free_dev_rdev;
+
+ /* Allocate URB buffer */
+ xbox_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xbox_remote->irq_urb)
+ goto exit_free_buffers;
+
+ xbox_remote->udev = udev;
+ xbox_remote->rdev = rc_dev;
+ xbox_remote->interface = interface;
+
+ usb_make_path(udev, xbox_remote->rc_phys, sizeof(xbox_remote->rc_phys));
+
+ strlcat(xbox_remote->rc_phys, "/input0", sizeof(xbox_remote->rc_phys));
+
+ snprintf(xbox_remote->rc_name, sizeof(xbox_remote->rc_name), "%s%s%s",
+ udev->manufacturer ?: "",
+ udev->manufacturer && udev->product ? " " : "",
+ udev->product ?: "");
+
+ if (!strlen(xbox_remote->rc_name))
+ snprintf(xbox_remote->rc_name, sizeof(xbox_remote->rc_name),
+ DRIVER_DESC "(%04x,%04x)",
+ le16_to_cpu(xbox_remote->udev->descriptor.idVendor),
+ le16_to_cpu(xbox_remote->udev->descriptor.idProduct));
+
+ rc_dev->map_name = RC_MAP_XBOX_DVD; /* default map */
+
+ xbox_remote_rc_init(xbox_remote);
+
+ /* Device Hardware Initialization */
+ err = xbox_remote_initialize(xbox_remote, endpoint_in);
+ if (err)
+ goto exit_kill_urbs;
+
+ /* Set up and register rc device */
+ err = rc_register_device(xbox_remote->rdev);
+ if (err)
+ goto exit_kill_urbs;
+
+ usb_set_intfdata(interface, xbox_remote);
+
+ return 0;
+
+exit_kill_urbs:
+ usb_kill_urb(xbox_remote->irq_urb);
+exit_free_buffers:
+ usb_free_urb(xbox_remote->irq_urb);
+exit_free_dev_rdev:
+ rc_free_device(rc_dev);
+ kfree(xbox_remote);
+
+ return err;
+}
+
+/*
+ * xbox_remote_disconnect
+ */
+static void xbox_remote_disconnect(struct usb_interface *interface)
+{
+ struct xbox_remote *xbox_remote;
+
+ xbox_remote = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+ if (!xbox_remote) {
+ dev_warn(&interface->dev, "%s - null device?\n", __func__);
+ return;
+ }
+
+ usb_kill_urb(xbox_remote->irq_urb);
+ rc_unregister_device(xbox_remote->rdev);
+ usb_free_urb(xbox_remote->irq_urb);
+ kfree(xbox_remote);
+}
+
+/* usb specific object to register with the usb subsystem */
+static struct usb_driver xbox_remote_driver = {
+ .name = "xbox_remote",
+ .probe = xbox_remote_probe,
+ .disconnect = xbox_remote_disconnect,
+ .id_table = xbox_remote_table,
+};
+
+module_usb_driver(xbox_remote_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
projects / linux-2.6-block.git / commitdiff