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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 15:16:48 +07:00
fddb33f2e8
Don't send the report type as part of the data, this prevents the controller from going into the operational state at all. This is completely equivalent to what the code originally meant to accomplish: as per in net/bluetooth/hidp/core.c::hidp_output_raw_report(), by using HID_FEATURE_REPORT here, what will be actually sent is (HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE) which is exactly 0x53. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
169 lines
3.9 KiB
C
169 lines
3.9 KiB
C
/*
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* HID driver for some sony "special" devices
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*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2007 Paul Walmsley
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* Copyright (c) 2008 Jiri Slaby
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* Copyright (c) 2006-2008 Jiri Kosina
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/device.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include "hid-ids.h"
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#define VAIO_RDESC_CONSTANT 0x0001
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struct sony_sc {
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unsigned long quirks;
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};
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/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
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static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int rsize)
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{
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struct sony_sc *sc = hid_get_drvdata(hdev);
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if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
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rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
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dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
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"descriptor\n");
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rdesc[55] = 0x06;
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}
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}
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/*
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* Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
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* to "operational". Without this, the ps3 controller will not report any
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* events.
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*/
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static int sony_set_operational_usb(struct hid_device *hdev)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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struct usb_device *dev = interface_to_usbdev(intf);
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__u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
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int ret;
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char *buf = kmalloc(18, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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HID_REQ_GET_REPORT,
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USB_DIR_IN | USB_TYPE_CLASS |
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USB_RECIP_INTERFACE,
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(3 << 8) | 0xf2, ifnum, buf, 17,
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USB_CTRL_GET_TIMEOUT);
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if (ret < 0)
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dev_err(&hdev->dev, "can't set operational mode\n");
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kfree(buf);
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return ret;
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}
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static int sony_set_operational_bt(struct hid_device *hdev)
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{
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unsigned char buf[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
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return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
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}
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static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
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{
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int ret;
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unsigned long quirks = id->driver_data;
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struct sony_sc *sc;
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sc = kzalloc(sizeof(*sc), GFP_KERNEL);
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if (sc == NULL) {
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dev_err(&hdev->dev, "can't alloc sony descriptor\n");
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return -ENOMEM;
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}
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sc->quirks = quirks;
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hid_set_drvdata(hdev, sc);
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ret = hid_parse(hdev);
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if (ret) {
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dev_err(&hdev->dev, "parse failed\n");
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goto err_free;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
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HID_CONNECT_HIDDEV_FORCE);
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if (ret) {
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dev_err(&hdev->dev, "hw start failed\n");
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goto err_free;
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}
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switch (hdev->bus) {
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case BUS_USB:
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ret = sony_set_operational_usb(hdev);
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break;
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case BUS_BLUETOOTH:
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ret = sony_set_operational_bt(hdev);
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break;
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default:
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ret = 0;
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}
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if (ret < 0)
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goto err_stop;
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return 0;
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err_stop:
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hid_hw_stop(hdev);
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err_free:
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kfree(sc);
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return ret;
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}
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static void sony_remove(struct hid_device *hdev)
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{
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hid_hw_stop(hdev);
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kfree(hid_get_drvdata(hdev));
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}
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static const struct hid_device_id sony_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
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.driver_data = VAIO_RDESC_CONSTANT },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, sony_devices);
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static struct hid_driver sony_driver = {
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.name = "sony",
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.id_table = sony_devices,
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.probe = sony_probe,
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.remove = sony_remove,
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.report_fixup = sony_report_fixup,
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};
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static int __init sony_init(void)
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{
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return hid_register_driver(&sony_driver);
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}
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static void __exit sony_exit(void)
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{
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hid_unregister_driver(&sony_driver);
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}
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module_init(sony_init);
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module_exit(sony_exit);
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MODULE_LICENSE("GPL");
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