The Xbox DVD Movie Playback Kit is a USB dongle with an IR remote for the
Original Xbox.

Historically it has been supported by the out-of-tree lirc_xbox driver,
but this one has fallen out of favour and was just dropped from popular
Kodi (formerly XBMC) distributions.

This driver is heavily based on the ati_remote driver where all the
boilerplate was taken from - I was mostly just removing code.

Signed-off-by: Benjamin Valentin <benpi...@googlemail.com>
---
 MAINTAINERS                            |   6 +
 drivers/media/rc/Kconfig               |  11 +
 drivers/media/rc/Makefile              |   1 +
 drivers/media/rc/keymaps/Makefile      |   1 +
 drivers/media/rc/keymaps/rc-xbox-dvd.c |  63 +++++
 drivers/media/rc/xbox_remote.c         | 369 +++++++++++++++++++++++++
 include/media/rc-map.h                 |   1 +
 7 files changed, 452 insertions(+)
 create mode 100644 drivers/media/rc/keymaps/rc-xbox-dvd.c
 create mode 100644 drivers/media/rc/xbox_remote.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 22065048d89d..712a51a1a955 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15973,6 +15973,12 @@ T:     git 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/vdso
 S:     Maintained
 F:     arch/x86/entry/vdso/
 
+XBOX DVD IR REMOTE
+M:     Benjamin Valentin <benpi...@googlemail.com>
+S:     Maintained
+F:     drivers/media/rc/xbox_remote.c
+F:     drivers/media/rc/keymaps/rc-xbox-dvd.c
+
 XC2028/3028 TUNER DRIVER
 M:     Mauro Carvalho Chehab <mche...@kernel.org>
 L:     linux-media@vger.kernel.org
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 1021c08a9ba4..05489294ebbc 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -493,6 +493,17 @@ config IR_TANGO
           The HW decoder supports NEC, RC-5, RC-6 IR protocols.
           When compiled as a module, look for tango-ir.
 
+config CONFIG_RC_XBOX_DVD
+       tristate "Xbox DVD Movie Playback Kit"
+       depends on RC_CORE
+       select USB
+       help
+          Say Y here if you want to use the Xbox DVD Movie Playback Kit.
+          These are IR remotes with USB receivers for the Original Xbox (2001).
+
+          To compile this driver as a module, choose M here: the module will be
+          called xbox_remote.
+
 config IR_ZX
        tristate "ZTE ZX IR remote control"
        depends on RC_CORE
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index e0340d043fe8..92c163816849 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -48,3 +48,4 @@ obj-$(CONFIG_IR_SIR) += sir_ir.o
 obj-$(CONFIG_IR_MTK) += mtk-cir.o
 obj-$(CONFIG_IR_ZX) += zx-irdec.o
 obj-$(CONFIG_IR_TANGO) += tango-ir.o
+obj-$(CONFIG_RC_XBOX_DVD) += xbox_remote.o
diff --git a/drivers/media/rc/keymaps/Makefile 
b/drivers/media/rc/keymaps/Makefile
index d6b913a3032d..5b1399af6b3a 100644
--- a/drivers/media/rc/keymaps/Makefile
+++ b/drivers/media/rc/keymaps/Makefile
@@ -116,4 +116,5 @@ obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \
                        rc-winfast.o \
                        rc-winfast-usbii-deluxe.o \
                        rc-su3000.o \
+                       rc-xbox-dvd.o \
                        rc-zx-irdec.o
diff --git a/drivers/media/rc/keymaps/rc-xbox-dvd.c 
b/drivers/media/rc/keymaps/rc-xbox-dvd.c
new file mode 100644
index 000000000000..61da6706715c
--- /dev/null
+++ b/drivers/media/rc/keymaps/rc-xbox-dvd.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Keytable for Xbox DVD remote
+// Copyright (c) 2018 by Benjamin Valentin <benpi...@googlemail.com>
+
+#include <media/rc-map.h>
+#include <linux/module.h>
+
+/* based on lircd.conf.xbox */
+static struct rc_map_table xbox_dvd[] = {
+       {0x0b, KEY_OK},
+       {0xa6, KEY_UP},
+       {0xa7, KEY_DOWN},
+       {0xa8, KEY_RIGHT},
+       {0xa9, KEY_LEFT},
+       {0xc3, KEY_INFO},
+
+       {0xc6, KEY_9},
+       {0xc7, KEY_8},
+       {0xc8, KEY_7},
+       {0xc9, KEY_6},
+       {0xca, KEY_5},
+       {0xcb, KEY_4},
+       {0xcc, KEY_3},
+       {0xcd, KEY_2},
+       {0xce, KEY_1},
+       {0xcf, KEY_0},
+
+       {0xd5, KEY_ANGLE},
+       {0xd8, KEY_BACK},
+       {0xdd, KEY_PREVIOUSSONG},
+       {0xdf, KEY_NEXTSONG},
+       {0xe0, KEY_STOP},
+       {0xe2, KEY_REWIND},
+       {0xe3, KEY_FASTFORWARD},
+       {0xe5, KEY_TITLE},
+       {0xe6, KEY_PAUSE},
+       {0xea, KEY_PLAY},
+       {0xf7, KEY_MENU},
+};
+
+static struct rc_map_list xbox_dvd_map = {
+       .map = {
+               .scan     = xbox_dvd,
+               .size     = ARRAY_SIZE(xbox_dvd),
+               .rc_proto = RC_PROTO_UNKNOWN,
+               .name     = RC_MAP_XBOX_DVD,
+       }
+};
+
+static int __init init_rc_map(void)
+{
+       return rc_map_register(&xbox_dvd_map);
+}
+
+static void __exit exit_rc_map(void)
+{
+       rc_map_unregister(&xbox_dvd_map);
+}
+
+module_init(init_rc_map)
+module_exit(exit_rc_map)
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/rc/xbox_remote.c b/drivers/media/rc/xbox_remote.c
new file mode 100644
index 000000000000..73339b89f283
--- /dev/null
+++ b/drivers/media/rc/xbox_remote.c
@@ -0,0 +1,369 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Driver for Xbox DVD Movie Playback Kit
+// Copyright (c) 2018 by Benjamin Valentin <benpi...@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.hann...@iki.fi>
+ *                Copyright (c) 2004 Torrey Hoffman <thoff...@arnor.net>
+ *                Copyright (c) 2002 Vladimir Dergachev
+ *                Copyright (c) 2003-2004 Paul Miller 
<pmill...@users.sourceforge.net>
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/usb/input.h>
+#include <media/rc-core.h>
+
+/*
+ * Module and Version Information, Module Parameters
+ */
+
+#define DRIVER_VERSION "1.0.0"
+#define DRIVER_AUTHOR  "Benjamin Valentin <benpi...@flauschlabor.de>"
+#define DRIVER_DESC            "Xbox DVD USB Remote Control"
+
+#define NAME_BUFSIZE      80    /* size of product name, path buffers */
+#define DATA_BUFSIZE      16    /* size of URB data buffers */
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
+
+#define dbginfo(dev, format, arg...) \
+       do { if (debug) dev_info(dev, format, ## arg); } while (0)
+#undef err
+#define err(format, arg...) printk(KERN_ERR format, ## arg)
+
+/* 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;
+       struct usb_endpoint_descriptor *endpoint_in;
+       unsigned char *inbuf;
+       dma_addr_t inbuf_dma;
+
+       char rc_name[NAME_BUFSIZE];
+       char rc_phys[NAME_BUFSIZE];
+
+       struct mutex open_mutex;
+};
+
+/*
+ * xbox_remote_open
+ */
+static int xbox_remote_open(struct xbox_remote *xbox_remote)
+{
+       int err = 0;
+
+       mutex_lock(&xbox_remote->open_mutex);
+
+       /* 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__);
+               err = -EIO;
+       }
+
+       mutex_unlock(&xbox_remote->open_mutex);
+       return err;
+}
+
+/*
+ * xbox_remote_close
+ */
+static void xbox_remote_close(struct xbox_remote *xbox_remote)
+{
+       mutex_lock(&xbox_remote->open_mutex);
+       usb_kill_urb(xbox_remote->irq_urb);
+       mutex_unlock(&xbox_remote->open_mutex);
+}
+
+static int xbox_remote_rc_open(struct rc_dev *rdev)
+{
+       struct xbox_remote *xbox_remote = rdev->priv;
+       return xbox_remote_open(xbox_remote);
+}
+
+static void xbox_remote_rc_close(struct rc_dev *rdev)
+{
+       struct xbox_remote *xbox_remote = rdev->priv;
+       xbox_remote_close(xbox_remote);
+}
+
+/*
+ * 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;
+       }
+
+       dbginfo(&urb->dev->dev, "got data, len=%d: %*ph\n", urb->actual_length, 
urb->actual_length, data);
+       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);
+}
+
+/*
+ * xbox_remote_alloc_buffers
+ */
+static int xbox_remote_alloc_buffers(struct usb_device *udev,
+                                   struct xbox_remote *xbox_remote)
+{
+       xbox_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
+                                              &xbox_remote->inbuf_dma);
+       if (!xbox_remote->inbuf)
+               return -1;
+
+       xbox_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+       if (!xbox_remote->irq_urb)
+               return -1;
+
+       return 0;
+}
+
+/*
+ * xbox_remote_free_buffers
+ */
+static void xbox_remote_free_buffers(struct xbox_remote *xbox_remote)
+{
+       usb_free_urb(xbox_remote->irq_urb);
+
+       usb_free_coherent(xbox_remote->udev, DATA_BUFSIZE,
+               xbox_remote->inbuf, xbox_remote->inbuf_dma);
+}
+
+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_device *udev = xbox_remote->udev;
+       int pipe, maxp;
+
+       /* Set up irq_urb */
+       pipe = usb_rcvintpipe(udev, xbox_remote->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,
+                        xbox_remote->endpoint_in->bInterval);
+       xbox_remote->irq_urb->transfer_dma = xbox_remote->inbuf_dma;
+       xbox_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+       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 input_dev *input_dev;
+       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) {
+               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)) {
+               err("%s: Unexpected endpoint_in\n", __func__);
+               return -ENODEV;
+       }
+       if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
+               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 buffers, URBs */
+       if (xbox_remote_alloc_buffers(udev, xbox_remote))
+               goto exit_free_buffers;
+
+       xbox_remote->endpoint_in = endpoint_in;
+       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);
+       mutex_init(&xbox_remote->open_mutex);
+
+       /* Device Hardware Initialization - fills in xbox_remote->idev from 
udev. */
+       err = xbox_remote_initialize(xbox_remote);
+       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;
+
+       input_free_device(input_dev);
+       rc_unregister_device(rc_dev);
+       rc_dev = NULL;
+ exit_kill_urbs:
+       usb_kill_urb(xbox_remote->irq_urb);
+ exit_free_buffers:
+       xbox_remote_free_buffers(xbox_remote);
+ 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);
+       xbox_remote_free_buffers(xbox_remote);
+       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");
diff --git a/include/media/rc-map.h b/include/media/rc-map.h
index bfa3017cecba..d621acadfbf3 100644
--- a/include/media/rc-map.h
+++ b/include/media/rc-map.h
@@ -277,6 +277,7 @@ struct rc_map *rc_map_get(const char *name);
 #define RC_MAP_WINFAST                   "rc-winfast"
 #define RC_MAP_WINFAST_USBII_DELUXE      "rc-winfast-usbii-deluxe"
 #define RC_MAP_SU3000                    "rc-su3000"
+#define RC_MAP_XBOX_DVD                  "rc-xbox-dvd"
 #define RC_MAP_ZX_IRDEC                  "rc-zx-irdec"
 
 /*
-- 
2.17.1

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