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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
172 lines
4.4 KiB
C
172 lines
4.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Plantronics USB HID Driver
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*
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* Copyright (c) 2014 JD Cole <jd.cole@plantronics.com>
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* Copyright (c) 2015-2018 Terry Junge <terry.junge@plantronics.com>
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*/
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/*
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*/
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#include "hid-ids.h"
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#include <linux/hid.h>
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#include <linux/module.h>
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#define PLT_HID_1_0_PAGE 0xffa00000
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#define PLT_HID_2_0_PAGE 0xffa20000
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#define PLT_BASIC_TELEPHONY 0x0003
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#define PLT_BASIC_EXCEPTION 0x0005
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#define PLT_VOL_UP 0x00b1
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#define PLT_VOL_DOWN 0x00b2
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#define PLT1_VOL_UP (PLT_HID_1_0_PAGE | PLT_VOL_UP)
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#define PLT1_VOL_DOWN (PLT_HID_1_0_PAGE | PLT_VOL_DOWN)
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#define PLT2_VOL_UP (PLT_HID_2_0_PAGE | PLT_VOL_UP)
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#define PLT2_VOL_DOWN (PLT_HID_2_0_PAGE | PLT_VOL_DOWN)
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#define PLT_DA60 0xda60
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#define PLT_BT300_MIN 0x0413
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#define PLT_BT300_MAX 0x0418
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#define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \
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(usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
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static int plantronics_input_mapping(struct hid_device *hdev,
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struct hid_input *hi,
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struct hid_field *field,
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struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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unsigned short mapped_key;
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unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev);
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/* special case for PTT products */
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if (field->application == HID_GD_JOYSTICK)
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goto defaulted;
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/* handle volume up/down mapping */
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/* non-standard types or multi-HID interfaces - plt_type is PID */
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if (!(plt_type & HID_USAGE_PAGE)) {
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switch (plt_type) {
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case PLT_DA60:
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if (PLT_ALLOW_CONSUMER)
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goto defaulted;
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goto ignored;
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default:
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if (PLT_ALLOW_CONSUMER)
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goto defaulted;
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}
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}
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/* handle standard types - plt_type is 0xffa0uuuu or 0xffa2uuuu */
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/* 'basic telephony compliant' - allow default consumer page map */
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else if ((plt_type & HID_USAGE) >= PLT_BASIC_TELEPHONY &&
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(plt_type & HID_USAGE) != PLT_BASIC_EXCEPTION) {
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if (PLT_ALLOW_CONSUMER)
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goto defaulted;
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}
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/* not 'basic telephony' - apply legacy mapping */
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/* only map if the field is in the device's primary vendor page */
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else if (!((field->application ^ plt_type) & HID_USAGE_PAGE)) {
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switch (usage->hid) {
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case PLT1_VOL_UP:
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case PLT2_VOL_UP:
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mapped_key = KEY_VOLUMEUP;
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goto mapped;
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case PLT1_VOL_DOWN:
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case PLT2_VOL_DOWN:
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mapped_key = KEY_VOLUMEDOWN;
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goto mapped;
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}
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}
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/*
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* Future mapping of call control or other usages,
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* if and when keys are defined would go here
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* otherwise, ignore everything else that was not mapped
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*/
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ignored:
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return -1;
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defaulted:
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hid_dbg(hdev, "usage: %08x (appl: %08x) - defaulted\n",
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usage->hid, field->application);
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return 0;
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mapped:
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hid_map_usage_clear(hi, usage, bit, max, EV_KEY, mapped_key);
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hid_dbg(hdev, "usage: %08x (appl: %08x) - mapped to key %d\n",
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usage->hid, field->application, mapped_key);
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return 1;
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}
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static unsigned long plantronics_device_type(struct hid_device *hdev)
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{
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unsigned i, col_page;
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unsigned long plt_type = hdev->product;
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/* multi-HID interfaces? - plt_type is PID */
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if (plt_type >= PLT_BT300_MIN && plt_type <= PLT_BT300_MAX)
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goto exit;
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/* determine primary vendor page */
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for (i = 0; i < hdev->maxcollection; i++) {
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col_page = hdev->collection[i].usage & HID_USAGE_PAGE;
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if (col_page == PLT_HID_2_0_PAGE) {
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plt_type = hdev->collection[i].usage;
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break;
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}
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if (col_page == PLT_HID_1_0_PAGE)
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plt_type = hdev->collection[i].usage;
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}
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exit:
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hid_dbg(hdev, "plt_type decoded as: %08lx\n", plt_type);
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return plt_type;
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}
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static int plantronics_probe(struct hid_device *hdev,
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const struct hid_device_id *id)
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{
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int ret;
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ret = hid_parse(hdev);
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if (ret) {
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hid_err(hdev, "parse failed\n");
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goto err;
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}
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hid_set_drvdata(hdev, (void *)plantronics_device_type(hdev));
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
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HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE);
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if (ret)
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hid_err(hdev, "hw start failed\n");
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err:
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return ret;
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}
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static const struct hid_device_id plantronics_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, plantronics_devices);
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static struct hid_driver plantronics_driver = {
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.name = "plantronics",
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.id_table = plantronics_devices,
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.input_mapping = plantronics_input_mapping,
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.probe = plantronics_probe,
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};
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module_hid_driver(plantronics_driver);
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MODULE_AUTHOR("JD Cole <jd.cole@plantronics.com>");
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MODULE_AUTHOR("Terry Junge <terry.junge@plantronics.com>");
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MODULE_DESCRIPTION("Plantronics USB HID Driver");
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MODULE_LICENSE("GPL");
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