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drivers/hid/hid-plantronics.c
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/* * Plantronics USB HID Driver * * Copyright (c) 2014 JD Cole <jd.cole@plantronics.com> |
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* Copyright (c) 2015 Terry Junge <terry.junge@plantronics.com> |
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*/ /* * 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. */ #include "hid-ids.h" #include <linux/hid.h> #include <linux/module.h> |
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#define PLT_HID_1_0_PAGE 0xffa00000 #define PLT_HID_2_0_PAGE 0xffa20000 #define PLT_BASIC_TELEPHONY 0x0003 #define PLT_BASIC_EXCEPTION 0x0005 #define PLT_VOL_UP 0x00b1 #define PLT_VOL_DOWN 0x00b2 #define PLT1_VOL_UP (PLT_HID_1_0_PAGE | PLT_VOL_UP) #define PLT1_VOL_DOWN (PLT_HID_1_0_PAGE | PLT_VOL_DOWN) #define PLT2_VOL_UP (PLT_HID_2_0_PAGE | PLT_VOL_UP) #define PLT2_VOL_DOWN (PLT_HID_2_0_PAGE | PLT_VOL_DOWN) #define PLT_DA60 0xda60 #define PLT_BT300_MIN 0x0413 #define PLT_BT300_MAX 0x0418 #define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \ (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) |
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static int plantronics_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { |
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unsigned short mapped_key; unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev); /* handle volume up/down mapping */ /* non-standard types or multi-HID interfaces - plt_type is PID */ if (!(plt_type & HID_USAGE_PAGE)) { switch (plt_type) { case PLT_DA60: if (PLT_ALLOW_CONSUMER) goto defaulted; goto ignored; default: if (PLT_ALLOW_CONSUMER) goto defaulted; } } /* handle standard types - plt_type is 0xffa0uuuu or 0xffa2uuuu */ /* 'basic telephony compliant' - allow default consumer page map */ else if ((plt_type & HID_USAGE) >= PLT_BASIC_TELEPHONY && (plt_type & HID_USAGE) != PLT_BASIC_EXCEPTION) { if (PLT_ALLOW_CONSUMER) goto defaulted; } /* not 'basic telephony' - apply legacy mapping */ /* only map if the field is in the device's primary vendor page */ else if (!((field->application ^ plt_type) & HID_USAGE_PAGE)) { switch (usage->hid) { case PLT1_VOL_UP: case PLT2_VOL_UP: mapped_key = KEY_VOLUMEUP; goto mapped; case PLT1_VOL_DOWN: case PLT2_VOL_DOWN: mapped_key = KEY_VOLUMEDOWN; goto mapped; } |
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} |
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/* * Future mapping of call control or other usages, * if and when keys are defined would go here * otherwise, ignore everything else that was not mapped */ |
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ignored: |
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return -1; |
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defaulted: hid_dbg(hdev, "usage: %08x (appl: %08x) - defaulted ", usage->hid, field->application); return 0; mapped: hid_map_usage_clear(hi, usage, bit, max, EV_KEY, mapped_key); hid_dbg(hdev, "usage: %08x (appl: %08x) - mapped to key %d ", usage->hid, field->application, mapped_key); return 1; } static unsigned long plantronics_device_type(struct hid_device *hdev) { unsigned i, col_page; unsigned long plt_type = hdev->product; /* multi-HID interfaces? - plt_type is PID */ if (plt_type >= PLT_BT300_MIN && plt_type <= PLT_BT300_MAX) goto exit; /* determine primary vendor page */ for (i = 0; i < hdev->maxcollection; i++) { col_page = hdev->collection[i].usage & HID_USAGE_PAGE; if (col_page == PLT_HID_2_0_PAGE) { plt_type = hdev->collection[i].usage; break; } if (col_page == PLT_HID_1_0_PAGE) plt_type = hdev->collection[i].usage; } exit: hid_dbg(hdev, "plt_type decoded as: %08lx ", plt_type); return plt_type; } static int plantronics_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed "); goto err; } hid_set_drvdata(hdev, (void *)plantronics_device_type(hdev)); ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE); if (ret) hid_err(hdev, "hw start failed "); err: return ret; |
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} |
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static const struct hid_device_id plantronics_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) }, { } }; MODULE_DEVICE_TABLE(hid, plantronics_devices); static struct hid_driver plantronics_driver = { .name = "plantronics", .id_table = plantronics_devices, .input_mapping = plantronics_input_mapping, |
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.probe = plantronics_probe, |
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}; module_hid_driver(plantronics_driver); MODULE_AUTHOR("JD Cole <jd.cole@plantronics.com>"); MODULE_AUTHOR("Terry Junge <terry.junge@plantronics.com>"); MODULE_DESCRIPTION("Plantronics USB HID Driver"); MODULE_LICENSE("GPL"); |