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drivers/hid/hid-roccat-savu.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* * Roccat Savu driver for Linux * * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net> */ /* |
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*/ /* Roccat Savu is a gamer mouse with macro keys that can be configured in * 5 profiles. */ #include <linux/device.h> #include <linux/input.h> #include <linux/hid.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/hid-roccat.h> #include "hid-ids.h" #include "hid-roccat-common.h" #include "hid-roccat-savu.h" static struct class *savu_class; |
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ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x4, 0x03); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x5, 0x03); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(general, 0x6, 0x10); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(buttons, 0x7, 0x2f); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x8, 0x0823); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x9, 0x08); ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0xc, 0x04); static struct bin_attribute *savu_bin_attrs[] = { |
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&bin_attr_control, &bin_attr_profile, &bin_attr_general, &bin_attr_buttons, &bin_attr_macro, &bin_attr_info, &bin_attr_sensor, NULL, }; static const struct attribute_group savu_group = { |
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.bin_attrs = savu_bin_attrs, |
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}; static const struct attribute_group *savu_groups[] = { &savu_group, NULL, |
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}; |
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static int savu_init_specials(struct hid_device *hdev) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); struct usb_device *usb_dev = interface_to_usbdev(intf); |
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struct roccat_common2_device *savu; |
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int retval; if (intf->cur_altsetting->desc.bInterfaceProtocol != USB_INTERFACE_PROTOCOL_MOUSE) { hid_set_drvdata(hdev, NULL); return 0; } savu = kzalloc(sizeof(*savu), GFP_KERNEL); if (!savu) { hid_err(hdev, "can't alloc device descriptor "); return -ENOMEM; } hid_set_drvdata(hdev, savu); |
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retval = roccat_common2_device_init_struct(usb_dev, savu); |
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if (retval) { |
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hid_err(hdev, "couldn't init Savu device "); |
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goto exit_free; } retval = roccat_connect(savu_class, hdev, sizeof(struct savu_roccat_report)); if (retval < 0) { hid_err(hdev, "couldn't init char dev "); } else { savu->chrdev_minor = retval; savu->roccat_claimed = 1; } return 0; exit_free: kfree(savu); return retval; } static void savu_remove_specials(struct hid_device *hdev) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); |
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struct roccat_common2_device *savu; |
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if (intf->cur_altsetting->desc.bInterfaceProtocol != USB_INTERFACE_PROTOCOL_MOUSE) return; savu = hid_get_drvdata(hdev); if (savu->roccat_claimed) roccat_disconnect(savu->chrdev_minor); kfree(savu); } static int savu_probe(struct hid_device *hdev, const struct hid_device_id *id) { int retval; retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed "); goto exit; } retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (retval) { hid_err(hdev, "hw start failed "); goto exit; } retval = savu_init_specials(hdev); if (retval) { hid_err(hdev, "couldn't install mouse "); goto exit_stop; } return 0; exit_stop: hid_hw_stop(hdev); exit: return retval; } static void savu_remove(struct hid_device *hdev) { savu_remove_specials(hdev); hid_hw_stop(hdev); } |
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static void savu_report_to_chrdev(struct roccat_common2_device const *savu, |
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u8 const *data) { struct savu_roccat_report roccat_report; struct savu_mouse_report_special const *special_report; if (data[0] != SAVU_MOUSE_REPORT_NUMBER_SPECIAL) return; special_report = (struct savu_mouse_report_special const *)data; roccat_report.type = special_report->type; roccat_report.data[0] = special_report->data[0]; roccat_report.data[1] = special_report->data[1]; roccat_report_event(savu->chrdev_minor, (uint8_t const *)&roccat_report); } static int savu_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); |
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struct roccat_common2_device *savu = hid_get_drvdata(hdev); |
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if (intf->cur_altsetting->desc.bInterfaceProtocol != USB_INTERFACE_PROTOCOL_MOUSE) return 0; if (savu == NULL) return 0; if (savu->roccat_claimed) savu_report_to_chrdev(savu, data); return 0; } static const struct hid_device_id savu_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) }, { } }; MODULE_DEVICE_TABLE(hid, savu_devices); static struct hid_driver savu_driver = { .name = "savu", .id_table = savu_devices, .probe = savu_probe, .remove = savu_remove, .raw_event = savu_raw_event }; static int __init savu_init(void) { int retval; savu_class = class_create(THIS_MODULE, "savu"); if (IS_ERR(savu_class)) return PTR_ERR(savu_class); |
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savu_class->dev_groups = savu_groups; |
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retval = hid_register_driver(&savu_driver); if (retval) class_destroy(savu_class); return retval; } static void __exit savu_exit(void) { hid_unregister_driver(&savu_driver); class_destroy(savu_class); } module_init(savu_init); module_exit(savu_exit); MODULE_AUTHOR("Stefan Achatz"); MODULE_DESCRIPTION("USB Roccat Savu driver"); MODULE_LICENSE("GPL v2"); |