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![Jiri Kosina](/assets/img/avatar_default.png)
hidpp_ff_init() and hidpp_ff_deinit() are not used outside of hid-logitech-hidpp.c, so let's make them static. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2383 lines
65 KiB
C
2383 lines
65 KiB
C
/*
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* HIDPP protocol for Logitech Unifying receivers
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*
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* Copyright (c) 2011 Logitech (c)
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* Copyright (c) 2012-2013 Google (c)
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* Copyright (c) 2013-2014 Red Hat Inc.
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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; version 2 of the License.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/usb.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/sched.h>
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#include <linux/kfifo.h>
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#include <linux/input/mt.h>
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#include <linux/workqueue.h>
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#include <linux/atomic.h>
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#include <linux/fixp-arith.h>
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#include <asm/unaligned.h>
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#include "usbhid/usbhid.h"
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#include "hid-ids.h"
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
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MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
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static bool disable_raw_mode;
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module_param(disable_raw_mode, bool, 0644);
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MODULE_PARM_DESC(disable_raw_mode,
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"Disable Raw mode reporting for touchpads and keep firmware gestures.");
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static bool disable_tap_to_click;
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module_param(disable_tap_to_click, bool, 0644);
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MODULE_PARM_DESC(disable_tap_to_click,
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"Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
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#define REPORT_ID_HIDPP_SHORT 0x10
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#define REPORT_ID_HIDPP_LONG 0x11
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#define REPORT_ID_HIDPP_VERY_LONG 0x12
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#define HIDPP_REPORT_SHORT_LENGTH 7
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#define HIDPP_REPORT_LONG_LENGTH 20
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#define HIDPP_REPORT_VERY_LONG_LENGTH 64
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#define HIDPP_QUIRK_CLASS_WTP BIT(0)
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#define HIDPP_QUIRK_CLASS_M560 BIT(1)
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#define HIDPP_QUIRK_CLASS_K400 BIT(2)
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#define HIDPP_QUIRK_CLASS_G920 BIT(3)
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/* bits 2..20 are reserved for classes */
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#define HIDPP_QUIRK_CONNECT_EVENTS BIT(21)
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#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
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#define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
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#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
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#define HIDPP_QUIRK_DELAYED_INIT (HIDPP_QUIRK_NO_HIDINPUT | \
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HIDPP_QUIRK_CONNECT_EVENTS)
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/*
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* There are two hidpp protocols in use, the first version hidpp10 is known
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* as register access protocol or RAP, the second version hidpp20 is known as
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* feature access protocol or FAP
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*
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* Most older devices (including the Unifying usb receiver) use the RAP protocol
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* where as most newer devices use the FAP protocol. Both protocols are
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* compatible with the underlying transport, which could be usb, Unifiying, or
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* bluetooth. The message lengths are defined by the hid vendor specific report
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* descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and
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* the HIDPP_LONG report type (total message length 20 bytes)
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*
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* The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG
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* messages. The Unifying receiver itself responds to RAP messages (device index
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* is 0xFF for the receiver), and all messages (short or long) with a device
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* index between 1 and 6 are passed untouched to the corresponding paired
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* Unifying device.
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*
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* The paired device can be RAP or FAP, it will receive the message untouched
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* from the Unifiying receiver.
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*/
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struct fap {
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u8 feature_index;
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u8 funcindex_clientid;
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u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
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};
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struct rap {
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u8 sub_id;
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u8 reg_address;
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u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
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};
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struct hidpp_report {
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u8 report_id;
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u8 device_index;
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union {
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struct fap fap;
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struct rap rap;
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u8 rawbytes[sizeof(struct fap)];
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};
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} __packed;
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struct hidpp_device {
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struct hid_device *hid_dev;
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struct mutex send_mutex;
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void *send_receive_buf;
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char *name; /* will never be NULL and should not be freed */
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wait_queue_head_t wait;
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bool answer_available;
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u8 protocol_major;
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u8 protocol_minor;
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void *private_data;
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struct work_struct work;
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struct kfifo delayed_work_fifo;
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atomic_t connected;
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struct input_dev *delayed_input;
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unsigned long quirks;
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};
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/* HID++ 1.0 error codes */
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#define HIDPP_ERROR 0x8f
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#define HIDPP_ERROR_SUCCESS 0x00
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#define HIDPP_ERROR_INVALID_SUBID 0x01
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#define HIDPP_ERROR_INVALID_ADRESS 0x02
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#define HIDPP_ERROR_INVALID_VALUE 0x03
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#define HIDPP_ERROR_CONNECT_FAIL 0x04
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#define HIDPP_ERROR_TOO_MANY_DEVICES 0x05
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#define HIDPP_ERROR_ALREADY_EXISTS 0x06
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#define HIDPP_ERROR_BUSY 0x07
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#define HIDPP_ERROR_UNKNOWN_DEVICE 0x08
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#define HIDPP_ERROR_RESOURCE_ERROR 0x09
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#define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a
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#define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b
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#define HIDPP_ERROR_WRONG_PIN_CODE 0x0c
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/* HID++ 2.0 error codes */
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#define HIDPP20_ERROR 0xff
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static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
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static int __hidpp_send_report(struct hid_device *hdev,
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struct hidpp_report *hidpp_report)
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{
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struct hidpp_device *hidpp = hid_get_drvdata(hdev);
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int fields_count, ret;
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hidpp = hid_get_drvdata(hdev);
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switch (hidpp_report->report_id) {
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case REPORT_ID_HIDPP_SHORT:
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fields_count = HIDPP_REPORT_SHORT_LENGTH;
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break;
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case REPORT_ID_HIDPP_LONG:
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fields_count = HIDPP_REPORT_LONG_LENGTH;
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break;
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case REPORT_ID_HIDPP_VERY_LONG:
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fields_count = HIDPP_REPORT_VERY_LONG_LENGTH;
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break;
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default:
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return -ENODEV;
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}
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/*
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* set the device_index as the receiver, it will be overwritten by
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* hid_hw_request if needed
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*/
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hidpp_report->device_index = 0xff;
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if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) {
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ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count);
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} else {
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ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
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(u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
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HID_REQ_SET_REPORT);
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}
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return ret == fields_count ? 0 : -1;
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}
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/**
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* hidpp_send_message_sync() returns 0 in case of success, and something else
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* in case of a failure.
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* - If ' something else' is positive, that means that an error has been raised
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* by the protocol itself.
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* - If ' something else' is negative, that means that we had a classic error
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* (-ENOMEM, -EPIPE, etc...)
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*/
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static int hidpp_send_message_sync(struct hidpp_device *hidpp,
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struct hidpp_report *message,
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struct hidpp_report *response)
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{
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int ret;
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mutex_lock(&hidpp->send_mutex);
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hidpp->send_receive_buf = response;
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hidpp->answer_available = false;
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/*
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* So that we can later validate the answer when it arrives
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* in hidpp_raw_event
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*/
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*response = *message;
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ret = __hidpp_send_report(hidpp->hid_dev, message);
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if (ret) {
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dbg_hid("__hidpp_send_report returned err: %d\n", ret);
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memset(response, 0, sizeof(struct hidpp_report));
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goto exit;
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}
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if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
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5*HZ)) {
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dbg_hid("%s:timeout waiting for response\n", __func__);
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memset(response, 0, sizeof(struct hidpp_report));
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ret = -ETIMEDOUT;
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}
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if (response->report_id == REPORT_ID_HIDPP_SHORT &&
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response->rap.sub_id == HIDPP_ERROR) {
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ret = response->rap.params[1];
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dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
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goto exit;
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}
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if ((response->report_id == REPORT_ID_HIDPP_LONG ||
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response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
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response->fap.feature_index == HIDPP20_ERROR) {
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ret = response->fap.params[1];
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dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
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goto exit;
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}
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exit:
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mutex_unlock(&hidpp->send_mutex);
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return ret;
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}
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static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
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u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count,
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struct hidpp_report *response)
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{
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struct hidpp_report *message;
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int ret;
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if (param_count > sizeof(message->fap.params))
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return -EINVAL;
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message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
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if (!message)
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return -ENOMEM;
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if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4))
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message->report_id = REPORT_ID_HIDPP_VERY_LONG;
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else
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message->report_id = REPORT_ID_HIDPP_LONG;
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message->fap.feature_index = feat_index;
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message->fap.funcindex_clientid = funcindex_clientid;
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memcpy(&message->fap.params, params, param_count);
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ret = hidpp_send_message_sync(hidpp, message, response);
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kfree(message);
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return ret;
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}
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static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
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u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
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struct hidpp_report *response)
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{
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struct hidpp_report *message;
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int ret, max_count;
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switch (report_id) {
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case REPORT_ID_HIDPP_SHORT:
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max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
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break;
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case REPORT_ID_HIDPP_LONG:
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max_count = HIDPP_REPORT_LONG_LENGTH - 4;
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break;
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case REPORT_ID_HIDPP_VERY_LONG:
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max_count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
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break;
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default:
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return -EINVAL;
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}
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if (param_count > max_count)
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return -EINVAL;
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message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
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if (!message)
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return -ENOMEM;
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message->report_id = report_id;
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message->rap.sub_id = sub_id;
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message->rap.reg_address = reg_address;
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memcpy(&message->rap.params, params, param_count);
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ret = hidpp_send_message_sync(hidpp_dev, message, response);
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kfree(message);
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return ret;
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}
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static void delayed_work_cb(struct work_struct *work)
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{
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struct hidpp_device *hidpp = container_of(work, struct hidpp_device,
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work);
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hidpp_connect_event(hidpp);
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}
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static inline bool hidpp_match_answer(struct hidpp_report *question,
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struct hidpp_report *answer)
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{
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return (answer->fap.feature_index == question->fap.feature_index) &&
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(answer->fap.funcindex_clientid == question->fap.funcindex_clientid);
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}
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static inline bool hidpp_match_error(struct hidpp_report *question,
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struct hidpp_report *answer)
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{
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return ((answer->rap.sub_id == HIDPP_ERROR) ||
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(answer->fap.feature_index == HIDPP20_ERROR)) &&
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(answer->fap.funcindex_clientid == question->fap.feature_index) &&
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(answer->fap.params[0] == question->fap.funcindex_clientid);
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}
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static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
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{
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return (report->report_id == REPORT_ID_HIDPP_SHORT) &&
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(report->rap.sub_id == 0x41);
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}
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/**
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* hidpp_prefix_name() prefixes the current given name with "Logitech ".
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*/
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static void hidpp_prefix_name(char **name, int name_length)
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{
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#define PREFIX_LENGTH 9 /* "Logitech " */
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int new_length;
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char *new_name;
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if (name_length > PREFIX_LENGTH &&
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strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
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/* The prefix has is already in the name */
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return;
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new_length = PREFIX_LENGTH + name_length;
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new_name = kzalloc(new_length, GFP_KERNEL);
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if (!new_name)
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return;
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snprintf(new_name, new_length, "Logitech %s", *name);
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kfree(*name);
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*name = new_name;
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}
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/* -------------------------------------------------------------------------- */
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/* HIDP++ 1.0 commands */
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/* -------------------------------------------------------------------------- */
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#define HIDPP_SET_REGISTER 0x80
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#define HIDPP_GET_REGISTER 0x81
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#define HIDPP_SET_LONG_REGISTER 0x82
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#define HIDPP_GET_LONG_REGISTER 0x83
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#define HIDPP_REG_PAIRING_INFORMATION 0xB5
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#define DEVICE_NAME 0x40
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static char *hidpp_get_unifying_name(struct hidpp_device *hidpp_dev)
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{
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struct hidpp_report response;
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int ret;
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/* hid-logitech-dj is in charge of setting the right device index */
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u8 params[1] = { DEVICE_NAME };
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char *name;
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int len;
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ret = hidpp_send_rap_command_sync(hidpp_dev,
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REPORT_ID_HIDPP_SHORT,
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HIDPP_GET_LONG_REGISTER,
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HIDPP_REG_PAIRING_INFORMATION,
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params, 1, &response);
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if (ret)
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return NULL;
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len = response.rap.params[1];
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|
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if (2 + len > sizeof(response.rap.params))
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return NULL;
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name = kzalloc(len + 1, GFP_KERNEL);
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if (!name)
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return NULL;
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memcpy(name, &response.rap.params[2], len);
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|
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/* include the terminating '\0' */
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hidpp_prefix_name(&name, len + 1);
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return name;
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}
|
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|
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/* -------------------------------------------------------------------------- */
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/* 0x0000: Root */
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/* -------------------------------------------------------------------------- */
|
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|
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#define HIDPP_PAGE_ROOT 0x0000
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#define HIDPP_PAGE_ROOT_IDX 0x00
|
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|
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#define CMD_ROOT_GET_FEATURE 0x01
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#define CMD_ROOT_GET_PROTOCOL_VERSION 0x11
|
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|
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static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature,
|
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u8 *feature_index, u8 *feature_type)
|
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{
|
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struct hidpp_report response;
|
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int ret;
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u8 params[2] = { feature >> 8, feature & 0x00FF };
|
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ret = hidpp_send_fap_command_sync(hidpp,
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HIDPP_PAGE_ROOT_IDX,
|
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CMD_ROOT_GET_FEATURE,
|
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params, 2, &response);
|
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if (ret)
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return ret;
|
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|
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*feature_index = response.fap.params[0];
|
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*feature_type = response.fap.params[1];
|
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|
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return ret;
|
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}
|
|
|
|
static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
|
|
{
|
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struct hidpp_report response;
|
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int ret;
|
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|
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ret = hidpp_send_fap_command_sync(hidpp,
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HIDPP_PAGE_ROOT_IDX,
|
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CMD_ROOT_GET_PROTOCOL_VERSION,
|
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NULL, 0, &response);
|
|
|
|
if (ret == HIDPP_ERROR_INVALID_SUBID) {
|
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hidpp->protocol_major = 1;
|
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hidpp->protocol_minor = 0;
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return 0;
|
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}
|
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|
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/* the device might not be connected */
|
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if (ret == HIDPP_ERROR_RESOURCE_ERROR)
|
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return -EIO;
|
|
|
|
if (ret > 0) {
|
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hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
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__func__, ret);
|
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return -EPROTO;
|
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}
|
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if (ret)
|
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return ret;
|
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|
|
hidpp->protocol_major = response.fap.params[0];
|
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hidpp->protocol_minor = response.fap.params[1];
|
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|
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return ret;
|
|
}
|
|
|
|
static bool hidpp_is_connected(struct hidpp_device *hidpp)
|
|
{
|
|
int ret;
|
|
|
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ret = hidpp_root_get_protocol_version(hidpp);
|
|
if (!ret)
|
|
hid_dbg(hidpp->hid_dev, "HID++ %u.%u device connected.\n",
|
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hidpp->protocol_major, hidpp->protocol_minor);
|
|
return ret == 0;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* 0x0005: GetDeviceNameType */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005
|
|
|
|
#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01
|
|
#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11
|
|
#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21
|
|
|
|
static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp,
|
|
u8 feature_index, u8 *nameLength)
|
|
{
|
|
struct hidpp_report response;
|
|
int ret;
|
|
|
|
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response);
|
|
|
|
if (ret > 0) {
|
|
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
|
__func__, ret);
|
|
return -EPROTO;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
|
|
*nameLength = response.fap.params[0];
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
|
|
u8 feature_index, u8 char_index, char *device_name, int len_buf)
|
|
{
|
|
struct hidpp_report response;
|
|
int ret, i;
|
|
int count;
|
|
|
|
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1,
|
|
&response);
|
|
|
|
if (ret > 0) {
|
|
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
|
__func__, ret);
|
|
return -EPROTO;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
|
|
switch (response.report_id) {
|
|
case REPORT_ID_HIDPP_VERY_LONG:
|
|
count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
|
|
break;
|
|
case REPORT_ID_HIDPP_LONG:
|
|
count = HIDPP_REPORT_LONG_LENGTH - 4;
|
|
break;
|
|
case REPORT_ID_HIDPP_SHORT:
|
|
count = HIDPP_REPORT_SHORT_LENGTH - 4;
|
|
break;
|
|
default:
|
|
return -EPROTO;
|
|
}
|
|
|
|
if (len_buf < count)
|
|
count = len_buf;
|
|
|
|
for (i = 0; i < count; i++)
|
|
device_name[i] = response.fap.params[i];
|
|
|
|
return count;
|
|
}
|
|
|
|
static char *hidpp_get_device_name(struct hidpp_device *hidpp)
|
|
{
|
|
u8 feature_type;
|
|
u8 feature_index;
|
|
u8 __name_length;
|
|
char *name;
|
|
unsigned index = 0;
|
|
int ret;
|
|
|
|
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
|
|
&feature_index, &feature_type);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
ret = hidpp_devicenametype_get_count(hidpp, feature_index,
|
|
&__name_length);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
name = kzalloc(__name_length + 1, GFP_KERNEL);
|
|
if (!name)
|
|
return NULL;
|
|
|
|
while (index < __name_length) {
|
|
ret = hidpp_devicenametype_get_device_name(hidpp,
|
|
feature_index, index, name + index,
|
|
__name_length - index);
|
|
if (ret <= 0) {
|
|
kfree(name);
|
|
return NULL;
|
|
}
|
|
index += ret;
|
|
}
|
|
|
|
/* include the terminating '\0' */
|
|
hidpp_prefix_name(&name, __name_length + 1);
|
|
|
|
return name;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* 0x6010: Touchpad FW items */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define HIDPP_PAGE_TOUCHPAD_FW_ITEMS 0x6010
|
|
|
|
#define CMD_TOUCHPAD_FW_ITEMS_SET 0x10
|
|
|
|
struct hidpp_touchpad_fw_items {
|
|
uint8_t presence;
|
|
uint8_t desired_state;
|
|
uint8_t state;
|
|
uint8_t persistent;
|
|
};
|
|
|
|
/**
|
|
* send a set state command to the device by reading the current items->state
|
|
* field. items is then filled with the current state.
|
|
*/
|
|
static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp,
|
|
u8 feature_index,
|
|
struct hidpp_touchpad_fw_items *items)
|
|
{
|
|
struct hidpp_report response;
|
|
int ret;
|
|
u8 *params = (u8 *)response.fap.params;
|
|
|
|
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response);
|
|
|
|
if (ret > 0) {
|
|
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
|
__func__, ret);
|
|
return -EPROTO;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
|
|
items->presence = params[0];
|
|
items->desired_state = params[1];
|
|
items->state = params[2];
|
|
items->persistent = params[3];
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* 0x6100: TouchPadRawXY */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100
|
|
|
|
#define CMD_TOUCHPAD_GET_RAW_INFO 0x01
|
|
#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21
|
|
|
|
#define EVENT_TOUCHPAD_RAW_XY 0x00
|
|
|
|
#define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01
|
|
#define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03
|
|
|
|
struct hidpp_touchpad_raw_info {
|
|
u16 x_size;
|
|
u16 y_size;
|
|
u8 z_range;
|
|
u8 area_range;
|
|
u8 timestamp_unit;
|
|
u8 maxcontacts;
|
|
u8 origin;
|
|
u16 res;
|
|
};
|
|
|
|
struct hidpp_touchpad_raw_xy_finger {
|
|
u8 contact_type;
|
|
u8 contact_status;
|
|
u16 x;
|
|
u16 y;
|
|
u8 z;
|
|
u8 area;
|
|
u8 finger_id;
|
|
};
|
|
|
|
struct hidpp_touchpad_raw_xy {
|
|
u16 timestamp;
|
|
struct hidpp_touchpad_raw_xy_finger fingers[2];
|
|
u8 spurious_flag;
|
|
u8 end_of_frame;
|
|
u8 finger_count;
|
|
u8 button;
|
|
};
|
|
|
|
static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp,
|
|
u8 feature_index, struct hidpp_touchpad_raw_info *raw_info)
|
|
{
|
|
struct hidpp_report response;
|
|
int ret;
|
|
u8 *params = (u8 *)response.fap.params;
|
|
|
|
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response);
|
|
|
|
if (ret > 0) {
|
|
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
|
__func__, ret);
|
|
return -EPROTO;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
|
|
raw_info->x_size = get_unaligned_be16(¶ms[0]);
|
|
raw_info->y_size = get_unaligned_be16(¶ms[2]);
|
|
raw_info->z_range = params[4];
|
|
raw_info->area_range = params[5];
|
|
raw_info->maxcontacts = params[7];
|
|
raw_info->origin = params[8];
|
|
/* res is given in unit per inch */
|
|
raw_info->res = get_unaligned_be16(¶ms[13]) * 2 / 51;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev,
|
|
u8 feature_index, bool send_raw_reports,
|
|
bool sensor_enhanced_settings)
|
|
{
|
|
struct hidpp_report response;
|
|
|
|
/*
|
|
* Params:
|
|
* bit 0 - enable raw
|
|
* bit 1 - 16bit Z, no area
|
|
* bit 2 - enhanced sensitivity
|
|
* bit 3 - width, height (4 bits each) instead of area
|
|
* bit 4 - send raw + gestures (degrades smoothness)
|
|
* remaining bits - reserved
|
|
*/
|
|
u8 params = send_raw_reports | (sensor_enhanced_settings << 2);
|
|
|
|
return hidpp_send_fap_command_sync(hidpp_dev, feature_index,
|
|
CMD_TOUCHPAD_SET_RAW_REPORT_STATE, ¶ms, 1, &response);
|
|
}
|
|
|
|
static void hidpp_touchpad_touch_event(u8 *data,
|
|
struct hidpp_touchpad_raw_xy_finger *finger)
|
|
{
|
|
u8 x_m = data[0] << 2;
|
|
u8 y_m = data[2] << 2;
|
|
|
|
finger->x = x_m << 6 | data[1];
|
|
finger->y = y_m << 6 | data[3];
|
|
|
|
finger->contact_type = data[0] >> 6;
|
|
finger->contact_status = data[2] >> 6;
|
|
|
|
finger->z = data[4];
|
|
finger->area = data[5];
|
|
finger->finger_id = data[6] >> 4;
|
|
}
|
|
|
|
static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev,
|
|
u8 *data, struct hidpp_touchpad_raw_xy *raw_xy)
|
|
{
|
|
memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy));
|
|
raw_xy->end_of_frame = data[8] & 0x01;
|
|
raw_xy->spurious_flag = (data[8] >> 1) & 0x01;
|
|
raw_xy->finger_count = data[15] & 0x0f;
|
|
raw_xy->button = (data[8] >> 2) & 0x01;
|
|
|
|
if (raw_xy->finger_count) {
|
|
hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]);
|
|
hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]);
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* 0x8123: Force feedback support */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define HIDPP_FF_GET_INFO 0x01
|
|
#define HIDPP_FF_RESET_ALL 0x11
|
|
#define HIDPP_FF_DOWNLOAD_EFFECT 0x21
|
|
#define HIDPP_FF_SET_EFFECT_STATE 0x31
|
|
#define HIDPP_FF_DESTROY_EFFECT 0x41
|
|
#define HIDPP_FF_GET_APERTURE 0x51
|
|
#define HIDPP_FF_SET_APERTURE 0x61
|
|
#define HIDPP_FF_GET_GLOBAL_GAINS 0x71
|
|
#define HIDPP_FF_SET_GLOBAL_GAINS 0x81
|
|
|
|
#define HIDPP_FF_EFFECT_STATE_GET 0x00
|
|
#define HIDPP_FF_EFFECT_STATE_STOP 0x01
|
|
#define HIDPP_FF_EFFECT_STATE_PLAY 0x02
|
|
#define HIDPP_FF_EFFECT_STATE_PAUSE 0x03
|
|
|
|
#define HIDPP_FF_EFFECT_CONSTANT 0x00
|
|
#define HIDPP_FF_EFFECT_PERIODIC_SINE 0x01
|
|
#define HIDPP_FF_EFFECT_PERIODIC_SQUARE 0x02
|
|
#define HIDPP_FF_EFFECT_PERIODIC_TRIANGLE 0x03
|
|
#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP 0x04
|
|
#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN 0x05
|
|
#define HIDPP_FF_EFFECT_SPRING 0x06
|
|
#define HIDPP_FF_EFFECT_DAMPER 0x07
|
|
#define HIDPP_FF_EFFECT_FRICTION 0x08
|
|
#define HIDPP_FF_EFFECT_INERTIA 0x09
|
|
#define HIDPP_FF_EFFECT_RAMP 0x0A
|
|
|
|
#define HIDPP_FF_EFFECT_AUTOSTART 0x80
|
|
|
|
#define HIDPP_FF_EFFECTID_NONE -1
|
|
#define HIDPP_FF_EFFECTID_AUTOCENTER -2
|
|
|
|
#define HIDPP_FF_MAX_PARAMS 20
|
|
#define HIDPP_FF_RESERVED_SLOTS 1
|
|
|
|
struct hidpp_ff_private_data {
|
|
struct hidpp_device *hidpp;
|
|
u8 feature_index;
|
|
u8 version;
|
|
u16 gain;
|
|
s16 range;
|
|
u8 slot_autocenter;
|
|
u8 num_effects;
|
|
int *effect_ids;
|
|
struct workqueue_struct *wq;
|
|
atomic_t workqueue_size;
|
|
};
|
|
|
|
struct hidpp_ff_work_data {
|
|
struct work_struct work;
|
|
struct hidpp_ff_private_data *data;
|
|
int effect_id;
|
|
u8 command;
|
|
u8 params[HIDPP_FF_MAX_PARAMS];
|
|
u8 size;
|
|
};
|
|
|
|
static const signed short hiddpp_ff_effects[] = {
|
|
FF_CONSTANT,
|
|
FF_PERIODIC,
|
|
FF_SINE,
|
|
FF_SQUARE,
|
|
FF_SAW_UP,
|
|
FF_SAW_DOWN,
|
|
FF_TRIANGLE,
|
|
FF_SPRING,
|
|
FF_DAMPER,
|
|
FF_AUTOCENTER,
|
|
FF_GAIN,
|
|
-1
|
|
};
|
|
|
|
static const signed short hiddpp_ff_effects_v2[] = {
|
|
FF_RAMP,
|
|
FF_FRICTION,
|
|
FF_INERTIA,
|
|
-1
|
|
};
|
|
|
|
static const u8 HIDPP_FF_CONDITION_CMDS[] = {
|
|
HIDPP_FF_EFFECT_SPRING,
|
|
HIDPP_FF_EFFECT_FRICTION,
|
|
HIDPP_FF_EFFECT_DAMPER,
|
|
HIDPP_FF_EFFECT_INERTIA
|
|
};
|
|
|
|
static const char *HIDPP_FF_CONDITION_NAMES[] = {
|
|
"spring",
|
|
"friction",
|
|
"damper",
|
|
"inertia"
|
|
};
|
|
|
|
|
|
static u8 hidpp_ff_find_effect(struct hidpp_ff_private_data *data, int effect_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < data->num_effects; i++)
|
|
if (data->effect_ids[i] == effect_id)
|
|
return i+1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hidpp_ff_work_handler(struct work_struct *w)
|
|
{
|
|
struct hidpp_ff_work_data *wd = container_of(w, struct hidpp_ff_work_data, work);
|
|
struct hidpp_ff_private_data *data = wd->data;
|
|
struct hidpp_report response;
|
|
u8 slot;
|
|
int ret;
|
|
|
|
/* add slot number if needed */
|
|
switch (wd->effect_id) {
|
|
case HIDPP_FF_EFFECTID_AUTOCENTER:
|
|
wd->params[0] = data->slot_autocenter;
|
|
break;
|
|
case HIDPP_FF_EFFECTID_NONE:
|
|
/* leave slot as zero */
|
|
break;
|
|
default:
|
|
/* find current slot for effect */
|
|
wd->params[0] = hidpp_ff_find_effect(data, wd->effect_id);
|
|
break;
|
|
}
|
|
|
|
/* send command and wait for reply */
|
|
ret = hidpp_send_fap_command_sync(data->hidpp, data->feature_index,
|
|
wd->command, wd->params, wd->size, &response);
|
|
|
|
if (ret) {
|
|
hid_err(data->hidpp->hid_dev, "Failed to send command to device!\n");
|
|
goto out;
|
|
}
|
|
|
|
/* parse return data */
|
|
switch (wd->command) {
|
|
case HIDPP_FF_DOWNLOAD_EFFECT:
|
|
slot = response.fap.params[0];
|
|
if (slot > 0 && slot <= data->num_effects) {
|
|
if (wd->effect_id >= 0)
|
|
/* regular effect uploaded */
|
|
data->effect_ids[slot-1] = wd->effect_id;
|
|
else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
|
|
/* autocenter spring uploaded */
|
|
data->slot_autocenter = slot;
|
|
}
|
|
break;
|
|
case HIDPP_FF_DESTROY_EFFECT:
|
|
if (wd->effect_id >= 0)
|
|
/* regular effect destroyed */
|
|
data->effect_ids[wd->params[0]-1] = -1;
|
|
else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
|
|
/* autocenter spring destoyed */
|
|
data->slot_autocenter = 0;
|
|
break;
|
|
case HIDPP_FF_SET_GLOBAL_GAINS:
|
|
data->gain = (wd->params[0] << 8) + wd->params[1];
|
|
break;
|
|
case HIDPP_FF_SET_APERTURE:
|
|
data->range = (wd->params[0] << 8) + wd->params[1];
|
|
break;
|
|
default:
|
|
/* no action needed */
|
|
break;
|
|
}
|
|
|
|
out:
|
|
atomic_dec(&data->workqueue_size);
|
|
kfree(wd);
|
|
}
|
|
|
|
static int hidpp_ff_queue_work(struct hidpp_ff_private_data *data, int effect_id, u8 command, u8 *params, u8 size)
|
|
{
|
|
struct hidpp_ff_work_data *wd = kzalloc(sizeof(*wd), GFP_KERNEL);
|
|
int s;
|
|
|
|
if (!wd)
|
|
return -ENOMEM;
|
|
|
|
INIT_WORK(&wd->work, hidpp_ff_work_handler);
|
|
|
|
wd->data = data;
|
|
wd->effect_id = effect_id;
|
|
wd->command = command;
|
|
wd->size = size;
|
|
memcpy(wd->params, params, size);
|
|
|
|
atomic_inc(&data->workqueue_size);
|
|
queue_work(data->wq, &wd->work);
|
|
|
|
/* warn about excessive queue size */
|
|
s = atomic_read(&data->workqueue_size);
|
|
if (s >= 20 && s % 20 == 0)
|
|
hid_warn(data->hidpp->hid_dev, "Force feedback command queue contains %d commands, causing substantial delays!", s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hidpp_ff_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
|
|
{
|
|
struct hidpp_ff_private_data *data = dev->ff->private;
|
|
u8 params[20];
|
|
u8 size;
|
|
int force;
|
|
|
|
/* set common parameters */
|
|
params[2] = effect->replay.length >> 8;
|
|
params[3] = effect->replay.length & 255;
|
|
params[4] = effect->replay.delay >> 8;
|
|
params[5] = effect->replay.delay & 255;
|
|
|
|
switch (effect->type) {
|
|
case FF_CONSTANT:
|
|
force = (effect->u.constant.level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
|
|
params[1] = HIDPP_FF_EFFECT_CONSTANT;
|
|
params[6] = force >> 8;
|
|
params[7] = force & 255;
|
|
params[8] = effect->u.constant.envelope.attack_level >> 7;
|
|
params[9] = effect->u.constant.envelope.attack_length >> 8;
|
|
params[10] = effect->u.constant.envelope.attack_length & 255;
|
|
params[11] = effect->u.constant.envelope.fade_level >> 7;
|
|
params[12] = effect->u.constant.envelope.fade_length >> 8;
|
|
params[13] = effect->u.constant.envelope.fade_length & 255;
|
|
size = 14;
|
|
dbg_hid("Uploading constant force level=%d in dir %d = %d\n",
|
|
effect->u.constant.level,
|
|
effect->direction, force);
|
|
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
|
|
effect->u.constant.envelope.attack_level,
|
|
effect->u.constant.envelope.attack_length,
|
|
effect->u.constant.envelope.fade_level,
|
|
effect->u.constant.envelope.fade_length);
|
|
break;
|
|
case FF_PERIODIC:
|
|
{
|
|
switch (effect->u.periodic.waveform) {
|
|
case FF_SINE:
|
|
params[1] = HIDPP_FF_EFFECT_PERIODIC_SINE;
|
|
break;
|
|
case FF_SQUARE:
|
|
params[1] = HIDPP_FF_EFFECT_PERIODIC_SQUARE;
|
|
break;
|
|
case FF_SAW_UP:
|
|
params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP;
|
|
break;
|
|
case FF_SAW_DOWN:
|
|
params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN;
|
|
break;
|
|
case FF_TRIANGLE:
|
|
params[1] = HIDPP_FF_EFFECT_PERIODIC_TRIANGLE;
|
|
break;
|
|
default:
|
|
hid_err(data->hidpp->hid_dev, "Unexpected periodic waveform type %i!\n", effect->u.periodic.waveform);
|
|
return -EINVAL;
|
|
}
|
|
force = (effect->u.periodic.magnitude * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
|
|
params[6] = effect->u.periodic.magnitude >> 8;
|
|
params[7] = effect->u.periodic.magnitude & 255;
|
|
params[8] = effect->u.periodic.offset >> 8;
|
|
params[9] = effect->u.periodic.offset & 255;
|
|
params[10] = effect->u.periodic.period >> 8;
|
|
params[11] = effect->u.periodic.period & 255;
|
|
params[12] = effect->u.periodic.phase >> 8;
|
|
params[13] = effect->u.periodic.phase & 255;
|
|
params[14] = effect->u.periodic.envelope.attack_level >> 7;
|
|
params[15] = effect->u.periodic.envelope.attack_length >> 8;
|
|
params[16] = effect->u.periodic.envelope.attack_length & 255;
|
|
params[17] = effect->u.periodic.envelope.fade_level >> 7;
|
|
params[18] = effect->u.periodic.envelope.fade_length >> 8;
|
|
params[19] = effect->u.periodic.envelope.fade_length & 255;
|
|
size = 20;
|
|
dbg_hid("Uploading periodic force mag=%d/dir=%d, offset=%d, period=%d ms, phase=%d\n",
|
|
effect->u.periodic.magnitude, effect->direction,
|
|
effect->u.periodic.offset,
|
|
effect->u.periodic.period,
|
|
effect->u.periodic.phase);
|
|
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
|
|
effect->u.periodic.envelope.attack_level,
|
|
effect->u.periodic.envelope.attack_length,
|
|
effect->u.periodic.envelope.fade_level,
|
|
effect->u.periodic.envelope.fade_length);
|
|
break;
|
|
}
|
|
case FF_RAMP:
|
|
params[1] = HIDPP_FF_EFFECT_RAMP;
|
|
force = (effect->u.ramp.start_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
|
|
params[6] = force >> 8;
|
|
params[7] = force & 255;
|
|
force = (effect->u.ramp.end_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
|
|
params[8] = force >> 8;
|
|
params[9] = force & 255;
|
|
params[10] = effect->u.ramp.envelope.attack_level >> 7;
|
|
params[11] = effect->u.ramp.envelope.attack_length >> 8;
|
|
params[12] = effect->u.ramp.envelope.attack_length & 255;
|
|
params[13] = effect->u.ramp.envelope.fade_level >> 7;
|
|
params[14] = effect->u.ramp.envelope.fade_length >> 8;
|
|
params[15] = effect->u.ramp.envelope.fade_length & 255;
|
|
size = 16;
|
|
dbg_hid("Uploading ramp force level=%d -> %d in dir %d = %d\n",
|
|
effect->u.ramp.start_level,
|
|
effect->u.ramp.end_level,
|
|
effect->direction, force);
|
|
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
|
|
effect->u.ramp.envelope.attack_level,
|
|
effect->u.ramp.envelope.attack_length,
|
|
effect->u.ramp.envelope.fade_level,
|
|
effect->u.ramp.envelope.fade_length);
|
|
break;
|
|
case FF_FRICTION:
|
|
case FF_INERTIA:
|
|
case FF_SPRING:
|
|
case FF_DAMPER:
|
|
params[1] = HIDPP_FF_CONDITION_CMDS[effect->type - FF_SPRING];
|
|
params[6] = effect->u.condition[0].left_saturation >> 9;
|
|
params[7] = (effect->u.condition[0].left_saturation >> 1) & 255;
|
|
params[8] = effect->u.condition[0].left_coeff >> 8;
|
|
params[9] = effect->u.condition[0].left_coeff & 255;
|
|
params[10] = effect->u.condition[0].deadband >> 9;
|
|
params[11] = (effect->u.condition[0].deadband >> 1) & 255;
|
|
params[12] = effect->u.condition[0].center >> 8;
|
|
params[13] = effect->u.condition[0].center & 255;
|
|
params[14] = effect->u.condition[0].right_coeff >> 8;
|
|
params[15] = effect->u.condition[0].right_coeff & 255;
|
|
params[16] = effect->u.condition[0].right_saturation >> 9;
|
|
params[17] = (effect->u.condition[0].right_saturation >> 1) & 255;
|
|
size = 18;
|
|
dbg_hid("Uploading %s force left coeff=%d, left sat=%d, right coeff=%d, right sat=%d\n",
|
|
HIDPP_FF_CONDITION_NAMES[effect->type - FF_SPRING],
|
|
effect->u.condition[0].left_coeff,
|
|
effect->u.condition[0].left_saturation,
|
|
effect->u.condition[0].right_coeff,
|
|
effect->u.condition[0].right_saturation);
|
|
dbg_hid(" deadband=%d, center=%d\n",
|
|
effect->u.condition[0].deadband,
|
|
effect->u.condition[0].center);
|
|
break;
|
|
default:
|
|
hid_err(data->hidpp->hid_dev, "Unexpected force type %i!\n", effect->type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return hidpp_ff_queue_work(data, effect->id, HIDPP_FF_DOWNLOAD_EFFECT, params, size);
|
|
}
|
|
|
|
static int hidpp_ff_playback(struct input_dev *dev, int effect_id, int value)
|
|
{
|
|
struct hidpp_ff_private_data *data = dev->ff->private;
|
|
u8 params[2];
|
|
|
|
params[1] = value ? HIDPP_FF_EFFECT_STATE_PLAY : HIDPP_FF_EFFECT_STATE_STOP;
|
|
|
|
dbg_hid("St%sing playback of effect %d.\n", value?"art":"opp", effect_id);
|
|
|
|
return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_SET_EFFECT_STATE, params, ARRAY_SIZE(params));
|
|
}
|
|
|
|
static int hidpp_ff_erase_effect(struct input_dev *dev, int effect_id)
|
|
{
|
|
struct hidpp_ff_private_data *data = dev->ff->private;
|
|
u8 slot = 0;
|
|
|
|
dbg_hid("Erasing effect %d.\n", effect_id);
|
|
|
|
return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_DESTROY_EFFECT, &slot, 1);
|
|
}
|
|
|
|
static void hidpp_ff_set_autocenter(struct input_dev *dev, u16 magnitude)
|
|
{
|
|
struct hidpp_ff_private_data *data = dev->ff->private;
|
|
u8 params[18];
|
|
|
|
dbg_hid("Setting autocenter to %d.\n", magnitude);
|
|
|
|
/* start a standard spring effect */
|
|
params[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART;
|
|
/* zero delay and duration */
|
|
params[2] = params[3] = params[4] = params[5] = 0;
|
|
/* set coeff to 25% of saturation */
|
|
params[8] = params[14] = magnitude >> 11;
|
|
params[9] = params[15] = (magnitude >> 3) & 255;
|
|
params[6] = params[16] = magnitude >> 9;
|
|
params[7] = params[17] = (magnitude >> 1) & 255;
|
|
/* zero deadband and center */
|
|
params[10] = params[11] = params[12] = params[13] = 0;
|
|
|
|
hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_AUTOCENTER, HIDPP_FF_DOWNLOAD_EFFECT, params, ARRAY_SIZE(params));
|
|
}
|
|
|
|
static void hidpp_ff_set_gain(struct input_dev *dev, u16 gain)
|
|
{
|
|
struct hidpp_ff_private_data *data = dev->ff->private;
|
|
u8 params[4];
|
|
|
|
dbg_hid("Setting gain to %d.\n", gain);
|
|
|
|
params[0] = gain >> 8;
|
|
params[1] = gain & 255;
|
|
params[2] = 0; /* no boost */
|
|
params[3] = 0;
|
|
|
|
hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_NONE, HIDPP_FF_SET_GLOBAL_GAINS, params, ARRAY_SIZE(params));
|
|
}
|
|
|
|
static ssize_t hidpp_ff_range_show(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct hid_device *hid = to_hid_device(dev);
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
|
|
struct input_dev *idev = hidinput->input;
|
|
struct hidpp_ff_private_data *data = idev->ff->private;
|
|
|
|
return scnprintf(buf, PAGE_SIZE, "%u\n", data->range);
|
|
}
|
|
|
|
static ssize_t hidpp_ff_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct hid_device *hid = to_hid_device(dev);
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
|
|
struct input_dev *idev = hidinput->input;
|
|
struct hidpp_ff_private_data *data = idev->ff->private;
|
|
u8 params[2];
|
|
int range = simple_strtoul(buf, NULL, 10);
|
|
|
|
range = clamp(range, 180, 900);
|
|
|
|
params[0] = range >> 8;
|
|
params[1] = range & 0x00FF;
|
|
|
|
hidpp_ff_queue_work(data, -1, HIDPP_FF_SET_APERTURE, params, ARRAY_SIZE(params));
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, hidpp_ff_range_show, hidpp_ff_range_store);
|
|
|
|
static void hidpp_ff_destroy(struct ff_device *ff)
|
|
{
|
|
struct hidpp_ff_private_data *data = ff->private;
|
|
|
|
kfree(data->effect_ids);
|
|
}
|
|
|
|
static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index)
|
|
{
|
|
struct hid_device *hid = hidpp->hid_dev;
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
|
|
struct input_dev *dev = hidinput->input;
|
|
const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
|
|
const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
|
|
struct ff_device *ff;
|
|
struct hidpp_report response;
|
|
struct hidpp_ff_private_data *data;
|
|
int error, j, num_slots;
|
|
u8 version;
|
|
|
|
if (!dev) {
|
|
hid_err(hid, "Struct input_dev not set!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Get firmware release */
|
|
version = bcdDevice & 255;
|
|
|
|
/* Set supported force feedback capabilities */
|
|
for (j = 0; hiddpp_ff_effects[j] >= 0; j++)
|
|
set_bit(hiddpp_ff_effects[j], dev->ffbit);
|
|
if (version > 1)
|
|
for (j = 0; hiddpp_ff_effects_v2[j] >= 0; j++)
|
|
set_bit(hiddpp_ff_effects_v2[j], dev->ffbit);
|
|
|
|
/* Read number of slots available in device */
|
|
error = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
HIDPP_FF_GET_INFO, NULL, 0, &response);
|
|
if (error) {
|
|
if (error < 0)
|
|
return error;
|
|
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
|
|
__func__, error);
|
|
return -EPROTO;
|
|
}
|
|
|
|
num_slots = response.fap.params[0] - HIDPP_FF_RESERVED_SLOTS;
|
|
|
|
error = input_ff_create(dev, num_slots);
|
|
|
|
if (error) {
|
|
hid_err(dev, "Failed to create FF device!\n");
|
|
return error;
|
|
}
|
|
|
|
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
data->effect_ids = kcalloc(num_slots, sizeof(int), GFP_KERNEL);
|
|
if (!data->effect_ids) {
|
|
kfree(data);
|
|
return -ENOMEM;
|
|
}
|
|
data->hidpp = hidpp;
|
|
data->feature_index = feature_index;
|
|
data->version = version;
|
|
data->slot_autocenter = 0;
|
|
data->num_effects = num_slots;
|
|
for (j = 0; j < num_slots; j++)
|
|
data->effect_ids[j] = -1;
|
|
|
|
ff = dev->ff;
|
|
ff->private = data;
|
|
|
|
ff->upload = hidpp_ff_upload_effect;
|
|
ff->erase = hidpp_ff_erase_effect;
|
|
ff->playback = hidpp_ff_playback;
|
|
ff->set_gain = hidpp_ff_set_gain;
|
|
ff->set_autocenter = hidpp_ff_set_autocenter;
|
|
ff->destroy = hidpp_ff_destroy;
|
|
|
|
|
|
/* reset all forces */
|
|
error = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
HIDPP_FF_RESET_ALL, NULL, 0, &response);
|
|
|
|
/* Read current Range */
|
|
error = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
HIDPP_FF_GET_APERTURE, NULL, 0, &response);
|
|
if (error)
|
|
hid_warn(hidpp->hid_dev, "Failed to read range from device!\n");
|
|
data->range = error ? 900 : get_unaligned_be16(&response.fap.params[0]);
|
|
|
|
/* Create sysfs interface */
|
|
error = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range);
|
|
if (error)
|
|
hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d!\n", error);
|
|
|
|
/* Read the current gain values */
|
|
error = hidpp_send_fap_command_sync(hidpp, feature_index,
|
|
HIDPP_FF_GET_GLOBAL_GAINS, NULL, 0, &response);
|
|
if (error)
|
|
hid_warn(hidpp->hid_dev, "Failed to read gain values from device!\n");
|
|
data->gain = error ? 0xffff : get_unaligned_be16(&response.fap.params[0]);
|
|
/* ignore boost value at response.fap.params[2] */
|
|
|
|
/* init the hardware command queue */
|
|
data->wq = create_singlethread_workqueue("hidpp-ff-sendqueue");
|
|
atomic_set(&data->workqueue_size, 0);
|
|
|
|
/* initialize with zero autocenter to get wheel in usable state */
|
|
hidpp_ff_set_autocenter(dev, 0);
|
|
|
|
hid_info(hid, "Force feeback support loaded (firmware release %d).\n", version);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hidpp_ff_deinit(struct hid_device *hid)
|
|
{
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
|
|
struct input_dev *dev = hidinput->input;
|
|
struct hidpp_ff_private_data *data;
|
|
|
|
if (!dev) {
|
|
hid_err(hid, "Struct input_dev not found!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
hid_info(hid, "Unloading HID++ force feedback.\n");
|
|
data = dev->ff->private;
|
|
if (!data) {
|
|
hid_err(hid, "Private data not found!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
destroy_workqueue(data->wq);
|
|
device_remove_file(&hid->dev, &dev_attr_range);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* ************************************************************************** */
|
|
/* */
|
|
/* Device Support */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* Touchpad HID++ devices */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define WTP_MANUAL_RESOLUTION 39
|
|
|
|
struct wtp_data {
|
|
struct input_dev *input;
|
|
u16 x_size, y_size;
|
|
u8 finger_count;
|
|
u8 mt_feature_index;
|
|
u8 button_feature_index;
|
|
u8 maxcontacts;
|
|
bool flip_y;
|
|
unsigned int resolution;
|
|
};
|
|
|
|
static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
static void wtp_populate_input(struct hidpp_device *hidpp,
|
|
struct input_dev *input_dev, bool origin_is_hid_core)
|
|
{
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
|
|
__set_bit(EV_ABS, input_dev->evbit);
|
|
__set_bit(EV_KEY, input_dev->evbit);
|
|
__clear_bit(EV_REL, input_dev->evbit);
|
|
__clear_bit(EV_LED, input_dev->evbit);
|
|
|
|
input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0);
|
|
input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution);
|
|
input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0);
|
|
input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution);
|
|
|
|
/* Max pressure is not given by the devices, pick one */
|
|
input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0);
|
|
|
|
input_set_capability(input_dev, EV_KEY, BTN_LEFT);
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)
|
|
input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
|
|
else
|
|
__set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
|
|
|
|
input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER |
|
|
INPUT_MT_DROP_UNUSED);
|
|
|
|
wd->input = input_dev;
|
|
}
|
|
|
|
static void wtp_touch_event(struct wtp_data *wd,
|
|
struct hidpp_touchpad_raw_xy_finger *touch_report)
|
|
{
|
|
int slot;
|
|
|
|
if (!touch_report->finger_id || touch_report->contact_type)
|
|
/* no actual data */
|
|
return;
|
|
|
|
slot = input_mt_get_slot_by_key(wd->input, touch_report->finger_id);
|
|
|
|
input_mt_slot(wd->input, slot);
|
|
input_mt_report_slot_state(wd->input, MT_TOOL_FINGER,
|
|
touch_report->contact_status);
|
|
if (touch_report->contact_status) {
|
|
input_event(wd->input, EV_ABS, ABS_MT_POSITION_X,
|
|
touch_report->x);
|
|
input_event(wd->input, EV_ABS, ABS_MT_POSITION_Y,
|
|
wd->flip_y ? wd->y_size - touch_report->y :
|
|
touch_report->y);
|
|
input_event(wd->input, EV_ABS, ABS_MT_PRESSURE,
|
|
touch_report->area);
|
|
}
|
|
}
|
|
|
|
static void wtp_send_raw_xy_event(struct hidpp_device *hidpp,
|
|
struct hidpp_touchpad_raw_xy *raw)
|
|
{
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
wtp_touch_event(wd, &(raw->fingers[i]));
|
|
|
|
if (raw->end_of_frame &&
|
|
!(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS))
|
|
input_event(wd->input, EV_KEY, BTN_LEFT, raw->button);
|
|
|
|
if (raw->end_of_frame || raw->finger_count <= 2) {
|
|
input_mt_sync_frame(wd->input);
|
|
input_sync(wd->input);
|
|
}
|
|
}
|
|
|
|
static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data)
|
|
{
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) +
|
|
(data[7] >> 4) * (data[7] >> 4)) / 2;
|
|
u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) +
|
|
(data[13] >> 4) * (data[13] >> 4)) / 2;
|
|
struct hidpp_touchpad_raw_xy raw = {
|
|
.timestamp = data[1],
|
|
.fingers = {
|
|
{
|
|
.contact_type = 0,
|
|
.contact_status = !!data[7],
|
|
.x = get_unaligned_le16(&data[3]),
|
|
.y = get_unaligned_le16(&data[5]),
|
|
.z = c1_area,
|
|
.area = c1_area,
|
|
.finger_id = data[2],
|
|
}, {
|
|
.contact_type = 0,
|
|
.contact_status = !!data[13],
|
|
.x = get_unaligned_le16(&data[9]),
|
|
.y = get_unaligned_le16(&data[11]),
|
|
.z = c2_area,
|
|
.area = c2_area,
|
|
.finger_id = data[8],
|
|
}
|
|
},
|
|
.finger_count = wd->maxcontacts,
|
|
.spurious_flag = 0,
|
|
.end_of_frame = (data[0] >> 7) == 0,
|
|
.button = data[0] & 0x01,
|
|
};
|
|
|
|
wtp_send_raw_xy_event(hidpp, &raw);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
struct hidpp_report *report = (struct hidpp_report *)data;
|
|
struct hidpp_touchpad_raw_xy raw;
|
|
|
|
if (!wd || !wd->input)
|
|
return 1;
|
|
|
|
switch (data[0]) {
|
|
case 0x02:
|
|
if (size < 2) {
|
|
hid_err(hdev, "Received HID report of bad size (%d)",
|
|
size);
|
|
return 1;
|
|
}
|
|
if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
|
|
input_event(wd->input, EV_KEY, BTN_LEFT,
|
|
!!(data[1] & 0x01));
|
|
input_event(wd->input, EV_KEY, BTN_RIGHT,
|
|
!!(data[1] & 0x02));
|
|
input_sync(wd->input);
|
|
return 0;
|
|
} else {
|
|
if (size < 21)
|
|
return 1;
|
|
return wtp_mouse_raw_xy_event(hidpp, &data[7]);
|
|
}
|
|
case REPORT_ID_HIDPP_LONG:
|
|
/* size is already checked in hidpp_raw_event. */
|
|
if ((report->fap.feature_index != wd->mt_feature_index) ||
|
|
(report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
|
|
return 1;
|
|
hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw);
|
|
|
|
wtp_send_raw_xy_event(hidpp, &raw);
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wtp_get_config(struct hidpp_device *hidpp)
|
|
{
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
struct hidpp_touchpad_raw_info raw_info = {0};
|
|
u8 feature_type;
|
|
int ret;
|
|
|
|
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY,
|
|
&wd->mt_feature_index, &feature_type);
|
|
if (ret)
|
|
/* means that the device is not powered up */
|
|
return ret;
|
|
|
|
ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index,
|
|
&raw_info);
|
|
if (ret)
|
|
return ret;
|
|
|
|
wd->x_size = raw_info.x_size;
|
|
wd->y_size = raw_info.y_size;
|
|
wd->maxcontacts = raw_info.maxcontacts;
|
|
wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT;
|
|
wd->resolution = raw_info.res;
|
|
if (!wd->resolution)
|
|
wd->resolution = WTP_MANUAL_RESOLUTION;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct wtp_data *wd;
|
|
|
|
wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data),
|
|
GFP_KERNEL);
|
|
if (!wd)
|
|
return -ENOMEM;
|
|
|
|
hidpp->private_data = wd;
|
|
|
|
return 0;
|
|
};
|
|
|
|
static int wtp_connect(struct hid_device *hdev, bool connected)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct wtp_data *wd = hidpp->private_data;
|
|
int ret;
|
|
|
|
if (!connected)
|
|
return 0;
|
|
|
|
if (!wd->x_size) {
|
|
ret = wtp_get_config(hidpp);
|
|
if (ret) {
|
|
hid_err(hdev, "Can not get wtp config: %d\n", ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index,
|
|
true, true);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* Logitech M560 devices */
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Logitech M560 protocol overview
|
|
*
|
|
* The Logitech M560 mouse, is designed for windows 8. When the middle and/or
|
|
* the sides buttons are pressed, it sends some keyboard keys events
|
|
* instead of buttons ones.
|
|
* To complicate things further, the middle button keys sequence
|
|
* is different from the odd press and the even press.
|
|
*
|
|
* forward button -> Super_R
|
|
* backward button -> Super_L+'d' (press only)
|
|
* middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only)
|
|
* 2nd time: left-click (press only)
|
|
* NB: press-only means that when the button is pressed, the
|
|
* KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated
|
|
* together sequentially; instead when the button is released, no event is
|
|
* generated !
|
|
*
|
|
* With the command
|
|
* 10<xx>0a 3500af03 (where <xx> is the mouse id),
|
|
* the mouse reacts differently:
|
|
* - it never sends a keyboard key event
|
|
* - for the three mouse button it sends:
|
|
* middle button press 11<xx>0a 3500af00...
|
|
* side 1 button (forward) press 11<xx>0a 3500b000...
|
|
* side 2 button (backward) press 11<xx>0a 3500ae00...
|
|
* middle/side1/side2 button release 11<xx>0a 35000000...
|
|
*/
|
|
|
|
static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03};
|
|
|
|
struct m560_private_data {
|
|
struct input_dev *input;
|
|
};
|
|
|
|
/* how buttons are mapped in the report */
|
|
#define M560_MOUSE_BTN_LEFT 0x01
|
|
#define M560_MOUSE_BTN_RIGHT 0x02
|
|
#define M560_MOUSE_BTN_WHEEL_LEFT 0x08
|
|
#define M560_MOUSE_BTN_WHEEL_RIGHT 0x10
|
|
|
|
#define M560_SUB_ID 0x0a
|
|
#define M560_BUTTON_MODE_REGISTER 0x35
|
|
|
|
static int m560_send_config_command(struct hid_device *hdev, bool connected)
|
|
{
|
|
struct hidpp_report response;
|
|
struct hidpp_device *hidpp_dev;
|
|
|
|
hidpp_dev = hid_get_drvdata(hdev);
|
|
|
|
if (!connected)
|
|
return -ENODEV;
|
|
|
|
return hidpp_send_rap_command_sync(
|
|
hidpp_dev,
|
|
REPORT_ID_HIDPP_SHORT,
|
|
M560_SUB_ID,
|
|
M560_BUTTON_MODE_REGISTER,
|
|
(u8 *)m560_config_parameter,
|
|
sizeof(m560_config_parameter),
|
|
&response
|
|
);
|
|
}
|
|
|
|
static int m560_allocate(struct hid_device *hdev)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct m560_private_data *d;
|
|
|
|
d = devm_kzalloc(&hdev->dev, sizeof(struct m560_private_data),
|
|
GFP_KERNEL);
|
|
if (!d)
|
|
return -ENOMEM;
|
|
|
|
hidpp->private_data = d;
|
|
|
|
return 0;
|
|
};
|
|
|
|
static int m560_raw_event(struct hid_device *hdev, u8 *data, int size)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct m560_private_data *mydata = hidpp->private_data;
|
|
|
|
/* sanity check */
|
|
if (!mydata || !mydata->input) {
|
|
hid_err(hdev, "error in parameter\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (size < 7) {
|
|
hid_err(hdev, "error in report\n");
|
|
return 0;
|
|
}
|
|
|
|
if (data[0] == REPORT_ID_HIDPP_LONG &&
|
|
data[2] == M560_SUB_ID && data[6] == 0x00) {
|
|
/*
|
|
* m560 mouse report for middle, forward and backward button
|
|
*
|
|
* data[0] = 0x11
|
|
* data[1] = device-id
|
|
* data[2] = 0x0a
|
|
* data[5] = 0xaf -> middle
|
|
* 0xb0 -> forward
|
|
* 0xae -> backward
|
|
* 0x00 -> release all
|
|
* data[6] = 0x00
|
|
*/
|
|
|
|
switch (data[5]) {
|
|
case 0xaf:
|
|
input_report_key(mydata->input, BTN_MIDDLE, 1);
|
|
break;
|
|
case 0xb0:
|
|
input_report_key(mydata->input, BTN_FORWARD, 1);
|
|
break;
|
|
case 0xae:
|
|
input_report_key(mydata->input, BTN_BACK, 1);
|
|
break;
|
|
case 0x00:
|
|
input_report_key(mydata->input, BTN_BACK, 0);
|
|
input_report_key(mydata->input, BTN_FORWARD, 0);
|
|
input_report_key(mydata->input, BTN_MIDDLE, 0);
|
|
break;
|
|
default:
|
|
hid_err(hdev, "error in report\n");
|
|
return 0;
|
|
}
|
|
input_sync(mydata->input);
|
|
|
|
} else if (data[0] == 0x02) {
|
|
/*
|
|
* Logitech M560 mouse report
|
|
*
|
|
* data[0] = type (0x02)
|
|
* data[1..2] = buttons
|
|
* data[3..5] = xy
|
|
* data[6] = wheel
|
|
*/
|
|
|
|
int v;
|
|
|
|
input_report_key(mydata->input, BTN_LEFT,
|
|
!!(data[1] & M560_MOUSE_BTN_LEFT));
|
|
input_report_key(mydata->input, BTN_RIGHT,
|
|
!!(data[1] & M560_MOUSE_BTN_RIGHT));
|
|
|
|
if (data[1] & M560_MOUSE_BTN_WHEEL_LEFT)
|
|
input_report_rel(mydata->input, REL_HWHEEL, -1);
|
|
else if (data[1] & M560_MOUSE_BTN_WHEEL_RIGHT)
|
|
input_report_rel(mydata->input, REL_HWHEEL, 1);
|
|
|
|
v = hid_snto32(hid_field_extract(hdev, data+3, 0, 12), 12);
|
|
input_report_rel(mydata->input, REL_X, v);
|
|
|
|
v = hid_snto32(hid_field_extract(hdev, data+3, 12, 12), 12);
|
|
input_report_rel(mydata->input, REL_Y, v);
|
|
|
|
v = hid_snto32(data[6], 8);
|
|
input_report_rel(mydata->input, REL_WHEEL, v);
|
|
|
|
input_sync(mydata->input);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void m560_populate_input(struct hidpp_device *hidpp,
|
|
struct input_dev *input_dev, bool origin_is_hid_core)
|
|
{
|
|
struct m560_private_data *mydata = hidpp->private_data;
|
|
|
|
mydata->input = input_dev;
|
|
|
|
__set_bit(EV_KEY, mydata->input->evbit);
|
|
__set_bit(BTN_MIDDLE, mydata->input->keybit);
|
|
__set_bit(BTN_RIGHT, mydata->input->keybit);
|
|
__set_bit(BTN_LEFT, mydata->input->keybit);
|
|
__set_bit(BTN_BACK, mydata->input->keybit);
|
|
__set_bit(BTN_FORWARD, mydata->input->keybit);
|
|
|
|
__set_bit(EV_REL, mydata->input->evbit);
|
|
__set_bit(REL_X, mydata->input->relbit);
|
|
__set_bit(REL_Y, mydata->input->relbit);
|
|
__set_bit(REL_WHEEL, mydata->input->relbit);
|
|
__set_bit(REL_HWHEEL, mydata->input->relbit);
|
|
}
|
|
|
|
static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* Logitech K400 devices */
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* The Logitech K400 keyboard has an embedded touchpad which is seen
|
|
* as a mouse from the OS point of view. There is a hardware shortcut to disable
|
|
* tap-to-click but the setting is not remembered accross reset, annoying some
|
|
* users.
|
|
*
|
|
* We can toggle this feature from the host by using the feature 0x6010:
|
|
* Touchpad FW items
|
|
*/
|
|
|
|
struct k400_private_data {
|
|
u8 feature_index;
|
|
};
|
|
|
|
static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
|
|
{
|
|
struct k400_private_data *k400 = hidpp->private_data;
|
|
struct hidpp_touchpad_fw_items items = {};
|
|
int ret;
|
|
u8 feature_type;
|
|
|
|
if (!k400->feature_index) {
|
|
ret = hidpp_root_get_feature(hidpp,
|
|
HIDPP_PAGE_TOUCHPAD_FW_ITEMS,
|
|
&k400->feature_index, &feature_type);
|
|
if (ret)
|
|
/* means that the device is not powered up */
|
|
return ret;
|
|
}
|
|
|
|
ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int k400_allocate(struct hid_device *hdev)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct k400_private_data *k400;
|
|
|
|
k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data),
|
|
GFP_KERNEL);
|
|
if (!k400)
|
|
return -ENOMEM;
|
|
|
|
hidpp->private_data = k400;
|
|
|
|
return 0;
|
|
};
|
|
|
|
static int k400_connect(struct hid_device *hdev, bool connected)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
|
|
if (!connected)
|
|
return 0;
|
|
|
|
if (!disable_tap_to_click)
|
|
return 0;
|
|
|
|
return k400_disable_tap_to_click(hidpp);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* Logitech G920 Driving Force Racing Wheel for Xbox One */
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#define HIDPP_PAGE_G920_FORCE_FEEDBACK 0x8123
|
|
|
|
static int g920_get_config(struct hidpp_device *hidpp)
|
|
{
|
|
u8 feature_type;
|
|
u8 feature_index;
|
|
int ret;
|
|
|
|
/* Find feature and store for later use */
|
|
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK,
|
|
&feature_index, &feature_type);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = hidpp_ff_init(hidpp, feature_index);
|
|
if (ret)
|
|
hid_warn(hidpp->hid_dev, "Unable to initialize force feedback support, errno %d\n",
|
|
ret);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* Generic HID++ devices */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
|
|
return wtp_input_mapping(hdev, hi, field, usage, bit, max);
|
|
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 &&
|
|
field->application != HID_GD_MOUSE)
|
|
return m560_input_mapping(hdev, hi, field, usage, bit, max);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
|
|
/* Ensure that Logitech G920 is not given a default fuzz/flat value */
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
|
|
if (usage->type == EV_ABS && (usage->code == ABS_X ||
|
|
usage->code == ABS_Y || usage->code == ABS_Z ||
|
|
usage->code == ABS_RZ)) {
|
|
field->application = HID_GD_MULTIAXIS;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void hidpp_populate_input(struct hidpp_device *hidpp,
|
|
struct input_dev *input, bool origin_is_hid_core)
|
|
{
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
|
|
wtp_populate_input(hidpp, input, origin_is_hid_core);
|
|
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
|
|
m560_populate_input(hidpp, input, origin_is_hid_core);
|
|
}
|
|
|
|
static int hidpp_input_configured(struct hid_device *hdev,
|
|
struct hid_input *hidinput)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
struct input_dev *input = hidinput->input;
|
|
|
|
hidpp_populate_input(hidpp, input, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
|
|
int size)
|
|
{
|
|
struct hidpp_report *question = hidpp->send_receive_buf;
|
|
struct hidpp_report *answer = hidpp->send_receive_buf;
|
|
struct hidpp_report *report = (struct hidpp_report *)data;
|
|
|
|
/*
|
|
* If the mutex is locked then we have a pending answer from a
|
|
* previously sent command.
|
|
*/
|
|
if (unlikely(mutex_is_locked(&hidpp->send_mutex))) {
|
|
/*
|
|
* Check for a correct hidpp20 answer or the corresponding
|
|
* error
|
|
*/
|
|
if (hidpp_match_answer(question, report) ||
|
|
hidpp_match_error(question, report)) {
|
|
*answer = *report;
|
|
hidpp->answer_available = true;
|
|
wake_up(&hidpp->wait);
|
|
/*
|
|
* This was an answer to a command that this driver sent
|
|
* We return 1 to hid-core to avoid forwarding the
|
|
* command upstream as it has been treated by the driver
|
|
*/
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (unlikely(hidpp_report_is_connect_event(report))) {
|
|
atomic_set(&hidpp->connected,
|
|
!(report->rap.params[0] & (1 << 6)));
|
|
if ((hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) &&
|
|
(schedule_work(&hidpp->work) == 0))
|
|
dbg_hid("%s: connect event already queued\n", __func__);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
|
|
u8 *data, int size)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
int ret = 0;
|
|
|
|
/* Generic HID++ processing. */
|
|
switch (data[0]) {
|
|
case REPORT_ID_HIDPP_VERY_LONG:
|
|
if (size != HIDPP_REPORT_VERY_LONG_LENGTH) {
|
|
hid_err(hdev, "received hid++ report of bad size (%d)",
|
|
size);
|
|
return 1;
|
|
}
|
|
ret = hidpp_raw_hidpp_event(hidpp, data, size);
|
|
break;
|
|
case REPORT_ID_HIDPP_LONG:
|
|
if (size != HIDPP_REPORT_LONG_LENGTH) {
|
|
hid_err(hdev, "received hid++ report of bad size (%d)",
|
|
size);
|
|
return 1;
|
|
}
|
|
ret = hidpp_raw_hidpp_event(hidpp, data, size);
|
|
break;
|
|
case REPORT_ID_HIDPP_SHORT:
|
|
if (size != HIDPP_REPORT_SHORT_LENGTH) {
|
|
hid_err(hdev, "received hid++ report of bad size (%d)",
|
|
size);
|
|
return 1;
|
|
}
|
|
ret = hidpp_raw_hidpp_event(hidpp, data, size);
|
|
break;
|
|
}
|
|
|
|
/* If no report is available for further processing, skip calling
|
|
* raw_event of subclasses. */
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
|
|
return wtp_raw_event(hdev, data, size);
|
|
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
|
|
return m560_raw_event(hdev, data, size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
char *name;
|
|
|
|
if (use_unifying)
|
|
/*
|
|
* the device is connected through an Unifying receiver, and
|
|
* might not be already connected.
|
|
* Ask the receiver for its name.
|
|
*/
|
|
name = hidpp_get_unifying_name(hidpp);
|
|
else
|
|
name = hidpp_get_device_name(hidpp);
|
|
|
|
if (!name) {
|
|
hid_err(hdev, "unable to retrieve the name of the device");
|
|
} else {
|
|
dbg_hid("HID++: Got name: %s\n", name);
|
|
snprintf(hdev->name, sizeof(hdev->name), "%s", name);
|
|
}
|
|
|
|
kfree(name);
|
|
}
|
|
|
|
static int hidpp_input_open(struct input_dev *dev)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
|
|
return hid_hw_open(hid);
|
|
}
|
|
|
|
static void hidpp_input_close(struct input_dev *dev)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
|
|
hid_hw_close(hid);
|
|
}
|
|
|
|
static struct input_dev *hidpp_allocate_input(struct hid_device *hdev)
|
|
{
|
|
struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev);
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
|
|
if (!input_dev)
|
|
return NULL;
|
|
|
|
input_set_drvdata(input_dev, hdev);
|
|
input_dev->open = hidpp_input_open;
|
|
input_dev->close = hidpp_input_close;
|
|
|
|
input_dev->name = hidpp->name;
|
|
input_dev->phys = hdev->phys;
|
|
input_dev->uniq = hdev->uniq;
|
|
input_dev->id.bustype = hdev->bus;
|
|
input_dev->id.vendor = hdev->vendor;
|
|
input_dev->id.product = hdev->product;
|
|
input_dev->id.version = hdev->version;
|
|
input_dev->dev.parent = &hdev->dev;
|
|
|
|
return input_dev;
|
|
}
|
|
|
|
static void hidpp_connect_event(struct hidpp_device *hidpp)
|
|
{
|
|
struct hid_device *hdev = hidpp->hid_dev;
|
|
int ret = 0;
|
|
bool connected = atomic_read(&hidpp->connected);
|
|
struct input_dev *input;
|
|
char *name, *devm_name;
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
|
|
ret = wtp_connect(hdev, connected);
|
|
if (ret)
|
|
return;
|
|
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
|
|
ret = m560_send_config_command(hdev, connected);
|
|
if (ret)
|
|
return;
|
|
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
|
|
ret = k400_connect(hdev, connected);
|
|
if (ret)
|
|
return;
|
|
}
|
|
|
|
if (!connected || hidpp->delayed_input)
|
|
return;
|
|
|
|
/* the device is already connected, we can ask for its name and
|
|
* protocol */
|
|
if (!hidpp->protocol_major) {
|
|
ret = !hidpp_is_connected(hidpp);
|
|
if (ret) {
|
|
hid_err(hdev, "Can not get the protocol version.\n");
|
|
return;
|
|
}
|
|
hid_info(hdev, "HID++ %u.%u device connected.\n",
|
|
hidpp->protocol_major, hidpp->protocol_minor);
|
|
}
|
|
|
|
if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT))
|
|
/* if HID created the input nodes for us, we can stop now */
|
|
return;
|
|
|
|
if (!hidpp->name || hidpp->name == hdev->name) {
|
|
name = hidpp_get_device_name(hidpp);
|
|
if (!name) {
|
|
hid_err(hdev,
|
|
"unable to retrieve the name of the device");
|
|
return;
|
|
}
|
|
|
|
devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s", name);
|
|
kfree(name);
|
|
if (!devm_name)
|
|
return;
|
|
|
|
hidpp->name = devm_name;
|
|
}
|
|
|
|
input = hidpp_allocate_input(hdev);
|
|
if (!input) {
|
|
hid_err(hdev, "cannot allocate new input device: %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
hidpp_populate_input(hidpp, input, false);
|
|
|
|
ret = input_register_device(input);
|
|
if (ret)
|
|
input_free_device(input);
|
|
|
|
hidpp->delayed_input = input;
|
|
}
|
|
|
|
static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
struct hidpp_device *hidpp;
|
|
int ret;
|
|
bool connected;
|
|
unsigned int connect_mask = HID_CONNECT_DEFAULT;
|
|
|
|
hidpp = devm_kzalloc(&hdev->dev, sizeof(struct hidpp_device),
|
|
GFP_KERNEL);
|
|
if (!hidpp)
|
|
return -ENOMEM;
|
|
|
|
hidpp->hid_dev = hdev;
|
|
hidpp->name = hdev->name;
|
|
hid_set_drvdata(hdev, hidpp);
|
|
|
|
hidpp->quirks = id->driver_data;
|
|
|
|
if (disable_raw_mode) {
|
|
hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
|
|
hidpp->quirks &= ~HIDPP_QUIRK_CONNECT_EVENTS;
|
|
hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT;
|
|
}
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
|
|
ret = wtp_allocate(hdev, id);
|
|
if (ret)
|
|
goto allocate_fail;
|
|
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
|
|
ret = m560_allocate(hdev);
|
|
if (ret)
|
|
goto allocate_fail;
|
|
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
|
|
ret = k400_allocate(hdev);
|
|
if (ret)
|
|
goto allocate_fail;
|
|
}
|
|
|
|
INIT_WORK(&hidpp->work, delayed_work_cb);
|
|
mutex_init(&hidpp->send_mutex);
|
|
init_waitqueue_head(&hidpp->wait);
|
|
|
|
ret = hid_parse(hdev);
|
|
if (ret) {
|
|
hid_err(hdev, "%s:parse failed\n", __func__);
|
|
goto hid_parse_fail;
|
|
}
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
|
|
connect_mask &= ~HID_CONNECT_HIDINPUT;
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
|
|
ret = hid_hw_start(hdev, connect_mask);
|
|
if (ret) {
|
|
hid_err(hdev, "hw start failed\n");
|
|
goto hid_hw_start_fail;
|
|
}
|
|
ret = hid_hw_open(hdev);
|
|
if (ret < 0) {
|
|
dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
|
|
__func__, ret);
|
|
hid_hw_stop(hdev);
|
|
goto hid_hw_start_fail;
|
|
}
|
|
}
|
|
|
|
|
|
/* Allow incoming packets */
|
|
hid_device_io_start(hdev);
|
|
|
|
connected = hidpp_is_connected(hidpp);
|
|
if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) {
|
|
if (!connected) {
|
|
ret = -ENODEV;
|
|
hid_err(hdev, "Device not connected");
|
|
goto hid_hw_open_failed;
|
|
}
|
|
|
|
hid_info(hdev, "HID++ %u.%u device connected.\n",
|
|
hidpp->protocol_major, hidpp->protocol_minor);
|
|
}
|
|
|
|
hidpp_overwrite_name(hdev, id->group == HID_GROUP_LOGITECH_DJ_DEVICE);
|
|
atomic_set(&hidpp->connected, connected);
|
|
|
|
if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
|
|
ret = wtp_get_config(hidpp);
|
|
if (ret)
|
|
goto hid_hw_open_failed;
|
|
} else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
|
|
ret = g920_get_config(hidpp);
|
|
if (ret)
|
|
goto hid_hw_open_failed;
|
|
}
|
|
|
|
/* Block incoming packets */
|
|
hid_device_io_stop(hdev);
|
|
|
|
if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
|
|
ret = hid_hw_start(hdev, connect_mask);
|
|
if (ret) {
|
|
hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
|
|
goto hid_hw_start_fail;
|
|
}
|
|
}
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) {
|
|
/* Allow incoming packets */
|
|
hid_device_io_start(hdev);
|
|
|
|
hidpp_connect_event(hidpp);
|
|
}
|
|
|
|
return ret;
|
|
|
|
hid_hw_open_failed:
|
|
hid_device_io_stop(hdev);
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
|
|
hid_hw_close(hdev);
|
|
hid_hw_stop(hdev);
|
|
}
|
|
hid_hw_start_fail:
|
|
hid_parse_fail:
|
|
cancel_work_sync(&hidpp->work);
|
|
mutex_destroy(&hidpp->send_mutex);
|
|
allocate_fail:
|
|
hid_set_drvdata(hdev, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static void hidpp_remove(struct hid_device *hdev)
|
|
{
|
|
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
|
|
|
|
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
|
|
hidpp_ff_deinit(hdev);
|
|
hid_hw_close(hdev);
|
|
}
|
|
hid_hw_stop(hdev);
|
|
cancel_work_sync(&hidpp->work);
|
|
mutex_destroy(&hidpp->send_mutex);
|
|
}
|
|
|
|
static const struct hid_device_id hidpp_devices[] = {
|
|
{ /* wireless touchpad */
|
|
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
|
|
USB_VENDOR_ID_LOGITECH, 0x4011),
|
|
.driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT |
|
|
HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS },
|
|
{ /* wireless touchpad T650 */
|
|
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
|
|
USB_VENDOR_ID_LOGITECH, 0x4101),
|
|
.driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
|
|
{ /* wireless touchpad T651 */
|
|
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
|
|
USB_DEVICE_ID_LOGITECH_T651),
|
|
.driver_data = HIDPP_QUIRK_CLASS_WTP },
|
|
{ /* Mouse logitech M560 */
|
|
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
|
|
USB_VENDOR_ID_LOGITECH, 0x402d),
|
|
.driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
|
|
{ /* Keyboard logitech K400 */
|
|
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
|
|
USB_VENDOR_ID_LOGITECH, 0x4024),
|
|
.driver_data = HIDPP_QUIRK_CONNECT_EVENTS | HIDPP_QUIRK_CLASS_K400 },
|
|
|
|
{ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
|
|
USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
|
|
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
|
|
.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(hid, hidpp_devices);
|
|
|
|
static struct hid_driver hidpp_driver = {
|
|
.name = "logitech-hidpp-device",
|
|
.id_table = hidpp_devices,
|
|
.probe = hidpp_probe,
|
|
.remove = hidpp_remove,
|
|
.raw_event = hidpp_raw_event,
|
|
.input_configured = hidpp_input_configured,
|
|
.input_mapping = hidpp_input_mapping,
|
|
.input_mapped = hidpp_input_mapped,
|
|
};
|
|
|
|
module_hid_driver(hidpp_driver);
|