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