743 lines
18 KiB
C
743 lines
18 KiB
C
/*
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* HID driver for Corsair devices
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*
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* Supported devices:
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* - Vengeance K90 Keyboard
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* - Scimitar PRO RGB Gaming Mouse
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*
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* Copyright (c) 2015 Clement Vuchener
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* Copyright (c) 2017 Oscar Campos
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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; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/hid.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/leds.h>
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#include "hid-ids.h"
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#define CORSAIR_USE_K90_MACRO (1<<0)
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#define CORSAIR_USE_K90_BACKLIGHT (1<<1)
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struct k90_led {
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struct led_classdev cdev;
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int brightness;
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struct work_struct work;
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bool removed;
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};
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struct k90_drvdata {
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struct k90_led record_led;
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};
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struct corsair_drvdata {
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unsigned long quirks;
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struct k90_drvdata *k90;
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struct k90_led *backlight;
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};
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#define K90_GKEY_COUNT 18
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static int corsair_usage_to_gkey(unsigned int usage)
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{
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/* G1 (0xd0) to G16 (0xdf) */
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if (usage >= 0xd0 && usage <= 0xdf)
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return usage - 0xd0 + 1;
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/* G17 (0xe8) to G18 (0xe9) */
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if (usage >= 0xe8 && usage <= 0xe9)
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return usage - 0xe8 + 17;
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return 0;
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}
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static unsigned short corsair_gkey_map[K90_GKEY_COUNT] = {
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BTN_TRIGGER_HAPPY1,
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BTN_TRIGGER_HAPPY2,
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BTN_TRIGGER_HAPPY3,
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BTN_TRIGGER_HAPPY4,
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BTN_TRIGGER_HAPPY5,
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BTN_TRIGGER_HAPPY6,
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BTN_TRIGGER_HAPPY7,
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BTN_TRIGGER_HAPPY8,
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BTN_TRIGGER_HAPPY9,
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BTN_TRIGGER_HAPPY10,
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BTN_TRIGGER_HAPPY11,
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BTN_TRIGGER_HAPPY12,
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BTN_TRIGGER_HAPPY13,
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BTN_TRIGGER_HAPPY14,
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BTN_TRIGGER_HAPPY15,
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BTN_TRIGGER_HAPPY16,
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BTN_TRIGGER_HAPPY17,
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BTN_TRIGGER_HAPPY18,
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};
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module_param_array_named(gkey_codes, corsair_gkey_map, ushort, NULL, S_IRUGO);
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MODULE_PARM_DESC(gkey_codes, "Key codes for the G-keys");
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static unsigned short corsair_record_keycodes[2] = {
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BTN_TRIGGER_HAPPY19,
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BTN_TRIGGER_HAPPY20
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};
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module_param_array_named(recordkey_codes, corsair_record_keycodes, ushort,
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NULL, S_IRUGO);
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MODULE_PARM_DESC(recordkey_codes, "Key codes for the MR (start and stop record) button");
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static unsigned short corsair_profile_keycodes[3] = {
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BTN_TRIGGER_HAPPY21,
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BTN_TRIGGER_HAPPY22,
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BTN_TRIGGER_HAPPY23
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};
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module_param_array_named(profilekey_codes, corsair_profile_keycodes, ushort,
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NULL, S_IRUGO);
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MODULE_PARM_DESC(profilekey_codes, "Key codes for the profile buttons");
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#define CORSAIR_USAGE_SPECIAL_MIN 0xf0
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#define CORSAIR_USAGE_SPECIAL_MAX 0xff
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#define CORSAIR_USAGE_MACRO_RECORD_START 0xf6
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#define CORSAIR_USAGE_MACRO_RECORD_STOP 0xf7
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#define CORSAIR_USAGE_PROFILE 0xf1
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#define CORSAIR_USAGE_M1 0xf1
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#define CORSAIR_USAGE_M2 0xf2
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#define CORSAIR_USAGE_M3 0xf3
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#define CORSAIR_USAGE_PROFILE_MAX 0xf3
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#define CORSAIR_USAGE_META_OFF 0xf4
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#define CORSAIR_USAGE_META_ON 0xf5
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#define CORSAIR_USAGE_LIGHT 0xfa
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#define CORSAIR_USAGE_LIGHT_OFF 0xfa
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#define CORSAIR_USAGE_LIGHT_DIM 0xfb
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#define CORSAIR_USAGE_LIGHT_MEDIUM 0xfc
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#define CORSAIR_USAGE_LIGHT_BRIGHT 0xfd
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#define CORSAIR_USAGE_LIGHT_MAX 0xfd
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/* USB control protocol */
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#define K90_REQUEST_BRIGHTNESS 49
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#define K90_REQUEST_MACRO_MODE 2
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#define K90_REQUEST_STATUS 4
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#define K90_REQUEST_GET_MODE 5
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#define K90_REQUEST_PROFILE 20
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#define K90_MACRO_MODE_SW 0x0030
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#define K90_MACRO_MODE_HW 0x0001
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#define K90_MACRO_LED_ON 0x0020
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#define K90_MACRO_LED_OFF 0x0040
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/*
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* LED class devices
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*/
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#define K90_BACKLIGHT_LED_SUFFIX "::backlight"
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#define K90_RECORD_LED_SUFFIX "::record"
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static enum led_brightness k90_backlight_get(struct led_classdev *led_cdev)
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{
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int ret;
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struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
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struct device *dev = led->cdev.dev->parent;
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struct usb_interface *usbif = to_usb_interface(dev->parent);
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struct usb_device *usbdev = interface_to_usbdev(usbif);
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int brightness;
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char *data;
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data = kmalloc(8, GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
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K90_REQUEST_STATUS,
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USB_DIR_IN | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, 0, 0, data, 8,
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USB_CTRL_SET_TIMEOUT);
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if (ret < 5) {
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dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
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ret);
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ret = -EIO;
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goto out;
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}
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brightness = data[4];
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if (brightness < 0 || brightness > 3) {
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dev_warn(dev,
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"Read invalid backlight brightness: %02hhx.\n",
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data[4]);
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ret = -EIO;
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goto out;
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}
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ret = brightness;
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out:
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kfree(data);
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return ret;
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}
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static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev)
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{
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struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
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return led->brightness;
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}
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static void k90_brightness_set(struct led_classdev *led_cdev,
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enum led_brightness brightness)
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{
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struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
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led->brightness = brightness;
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schedule_work(&led->work);
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}
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static void k90_backlight_work(struct work_struct *work)
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{
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int ret;
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struct k90_led *led = container_of(work, struct k90_led, work);
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struct device *dev;
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struct usb_interface *usbif;
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struct usb_device *usbdev;
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if (led->removed)
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return;
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dev = led->cdev.dev->parent;
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usbif = to_usb_interface(dev->parent);
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usbdev = interface_to_usbdev(usbif);
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ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
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K90_REQUEST_BRIGHTNESS,
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USB_DIR_OUT | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, led->brightness, 0,
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NULL, 0, USB_CTRL_SET_TIMEOUT);
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if (ret != 0)
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dev_warn(dev, "Failed to set backlight brightness (error: %d).\n",
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ret);
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}
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static void k90_record_led_work(struct work_struct *work)
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{
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int ret;
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struct k90_led *led = container_of(work, struct k90_led, work);
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struct device *dev;
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struct usb_interface *usbif;
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struct usb_device *usbdev;
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int value;
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if (led->removed)
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return;
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dev = led->cdev.dev->parent;
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usbif = to_usb_interface(dev->parent);
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usbdev = interface_to_usbdev(usbif);
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if (led->brightness > 0)
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value = K90_MACRO_LED_ON;
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else
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value = K90_MACRO_LED_OFF;
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ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
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K90_REQUEST_MACRO_MODE,
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USB_DIR_OUT | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, value, 0, NULL, 0,
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USB_CTRL_SET_TIMEOUT);
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if (ret != 0)
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dev_warn(dev, "Failed to set record LED state (error: %d).\n",
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ret);
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}
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/*
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* Keyboard attributes
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*/
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static ssize_t k90_show_macro_mode(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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int ret;
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struct usb_interface *usbif = to_usb_interface(dev->parent);
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struct usb_device *usbdev = interface_to_usbdev(usbif);
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const char *macro_mode;
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char *data;
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data = kmalloc(2, GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
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K90_REQUEST_GET_MODE,
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USB_DIR_IN | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, 0, 0, data, 2,
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USB_CTRL_SET_TIMEOUT);
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if (ret < 1) {
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dev_warn(dev, "Failed to get K90 initial mode (error %d).\n",
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ret);
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ret = -EIO;
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goto out;
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}
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switch (data[0]) {
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case K90_MACRO_MODE_HW:
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macro_mode = "HW";
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break;
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case K90_MACRO_MODE_SW:
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macro_mode = "SW";
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break;
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default:
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dev_warn(dev, "K90 in unknown mode: %02hhx.\n",
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data[0]);
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ret = -EIO;
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goto out;
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}
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ret = snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
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out:
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kfree(data);
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return ret;
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}
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static ssize_t k90_store_macro_mode(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int ret;
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struct usb_interface *usbif = to_usb_interface(dev->parent);
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struct usb_device *usbdev = interface_to_usbdev(usbif);
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__u16 value;
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if (strncmp(buf, "SW", 2) == 0)
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value = K90_MACRO_MODE_SW;
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else if (strncmp(buf, "HW", 2) == 0)
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value = K90_MACRO_MODE_HW;
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else
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return -EINVAL;
|
|
|
|
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
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K90_REQUEST_MACRO_MODE,
|
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USB_DIR_OUT | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, value, 0, NULL, 0,
|
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USB_CTRL_SET_TIMEOUT);
|
|
if (ret != 0) {
|
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dev_warn(dev, "Failed to set macro mode.\n");
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return ret;
|
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}
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|
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return count;
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}
|
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|
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static ssize_t k90_show_current_profile(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int ret;
|
|
struct usb_interface *usbif = to_usb_interface(dev->parent);
|
|
struct usb_device *usbdev = interface_to_usbdev(usbif);
|
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int current_profile;
|
|
char *data;
|
|
|
|
data = kmalloc(8, GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
|
|
K90_REQUEST_STATUS,
|
|
USB_DIR_IN | USB_TYPE_VENDOR |
|
|
USB_RECIP_DEVICE, 0, 0, data, 8,
|
|
USB_CTRL_SET_TIMEOUT);
|
|
if (ret < 8) {
|
|
dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
|
|
ret);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
current_profile = data[7];
|
|
if (current_profile < 1 || current_profile > 3) {
|
|
dev_warn(dev, "Read invalid current profile: %02hhx.\n",
|
|
data[7]);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
ret = snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
|
|
out:
|
|
kfree(data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t k90_store_current_profile(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int ret;
|
|
struct usb_interface *usbif = to_usb_interface(dev->parent);
|
|
struct usb_device *usbdev = interface_to_usbdev(usbif);
|
|
int profile;
|
|
|
|
if (kstrtoint(buf, 10, &profile))
|
|
return -EINVAL;
|
|
if (profile < 1 || profile > 3)
|
|
return -EINVAL;
|
|
|
|
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
|
|
K90_REQUEST_PROFILE,
|
|
USB_DIR_OUT | USB_TYPE_VENDOR |
|
|
USB_RECIP_DEVICE, profile, 0, NULL, 0,
|
|
USB_CTRL_SET_TIMEOUT);
|
|
if (ret != 0) {
|
|
dev_warn(dev, "Failed to change current profile (error %d).\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(macro_mode, 0644, k90_show_macro_mode, k90_store_macro_mode);
|
|
static DEVICE_ATTR(current_profile, 0644, k90_show_current_profile,
|
|
k90_store_current_profile);
|
|
|
|
static struct attribute *k90_attrs[] = {
|
|
&dev_attr_macro_mode.attr,
|
|
&dev_attr_current_profile.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group k90_attr_group = {
|
|
.attrs = k90_attrs,
|
|
};
|
|
|
|
/*
|
|
* Driver functions
|
|
*/
|
|
|
|
static int k90_init_backlight(struct hid_device *dev)
|
|
{
|
|
int ret;
|
|
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
|
|
size_t name_sz;
|
|
char *name;
|
|
|
|
drvdata->backlight = kzalloc(sizeof(struct k90_led), GFP_KERNEL);
|
|
if (!drvdata->backlight) {
|
|
ret = -ENOMEM;
|
|
goto fail_backlight_alloc;
|
|
}
|
|
|
|
name_sz =
|
|
strlen(dev_name(&dev->dev)) + sizeof(K90_BACKLIGHT_LED_SUFFIX);
|
|
name = kzalloc(name_sz, GFP_KERNEL);
|
|
if (!name) {
|
|
ret = -ENOMEM;
|
|
goto fail_name_alloc;
|
|
}
|
|
snprintf(name, name_sz, "%s" K90_BACKLIGHT_LED_SUFFIX,
|
|
dev_name(&dev->dev));
|
|
drvdata->backlight->removed = false;
|
|
drvdata->backlight->cdev.name = name;
|
|
drvdata->backlight->cdev.max_brightness = 3;
|
|
drvdata->backlight->cdev.brightness_set = k90_brightness_set;
|
|
drvdata->backlight->cdev.brightness_get = k90_backlight_get;
|
|
INIT_WORK(&drvdata->backlight->work, k90_backlight_work);
|
|
ret = led_classdev_register(&dev->dev, &drvdata->backlight->cdev);
|
|
if (ret != 0)
|
|
goto fail_register_cdev;
|
|
|
|
return 0;
|
|
|
|
fail_register_cdev:
|
|
kfree(drvdata->backlight->cdev.name);
|
|
fail_name_alloc:
|
|
kfree(drvdata->backlight);
|
|
drvdata->backlight = NULL;
|
|
fail_backlight_alloc:
|
|
return ret;
|
|
}
|
|
|
|
static int k90_init_macro_functions(struct hid_device *dev)
|
|
{
|
|
int ret;
|
|
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
|
|
struct k90_drvdata *k90;
|
|
size_t name_sz;
|
|
char *name;
|
|
|
|
k90 = kzalloc(sizeof(struct k90_drvdata), GFP_KERNEL);
|
|
if (!k90) {
|
|
ret = -ENOMEM;
|
|
goto fail_drvdata;
|
|
}
|
|
drvdata->k90 = k90;
|
|
|
|
/* Init LED device for record LED */
|
|
name_sz = strlen(dev_name(&dev->dev)) + sizeof(K90_RECORD_LED_SUFFIX);
|
|
name = kzalloc(name_sz, GFP_KERNEL);
|
|
if (!name) {
|
|
ret = -ENOMEM;
|
|
goto fail_record_led_alloc;
|
|
}
|
|
snprintf(name, name_sz, "%s" K90_RECORD_LED_SUFFIX,
|
|
dev_name(&dev->dev));
|
|
k90->record_led.removed = false;
|
|
k90->record_led.cdev.name = name;
|
|
k90->record_led.cdev.max_brightness = 1;
|
|
k90->record_led.cdev.brightness_set = k90_brightness_set;
|
|
k90->record_led.cdev.brightness_get = k90_record_led_get;
|
|
INIT_WORK(&k90->record_led.work, k90_record_led_work);
|
|
k90->record_led.brightness = 0;
|
|
ret = led_classdev_register(&dev->dev, &k90->record_led.cdev);
|
|
if (ret != 0)
|
|
goto fail_record_led;
|
|
|
|
/* Init attributes */
|
|
ret = sysfs_create_group(&dev->dev.kobj, &k90_attr_group);
|
|
if (ret != 0)
|
|
goto fail_sysfs;
|
|
|
|
return 0;
|
|
|
|
fail_sysfs:
|
|
k90->record_led.removed = true;
|
|
led_classdev_unregister(&k90->record_led.cdev);
|
|
cancel_work_sync(&k90->record_led.work);
|
|
fail_record_led:
|
|
kfree(k90->record_led.cdev.name);
|
|
fail_record_led_alloc:
|
|
kfree(k90);
|
|
fail_drvdata:
|
|
drvdata->k90 = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static void k90_cleanup_backlight(struct hid_device *dev)
|
|
{
|
|
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
|
|
|
|
if (drvdata->backlight) {
|
|
drvdata->backlight->removed = true;
|
|
led_classdev_unregister(&drvdata->backlight->cdev);
|
|
cancel_work_sync(&drvdata->backlight->work);
|
|
kfree(drvdata->backlight->cdev.name);
|
|
kfree(drvdata->backlight);
|
|
}
|
|
}
|
|
|
|
static void k90_cleanup_macro_functions(struct hid_device *dev)
|
|
{
|
|
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
|
|
struct k90_drvdata *k90 = drvdata->k90;
|
|
|
|
if (k90) {
|
|
sysfs_remove_group(&dev->dev.kobj, &k90_attr_group);
|
|
|
|
k90->record_led.removed = true;
|
|
led_classdev_unregister(&k90->record_led.cdev);
|
|
cancel_work_sync(&k90->record_led.work);
|
|
kfree(k90->record_led.cdev.name);
|
|
|
|
kfree(k90);
|
|
}
|
|
}
|
|
|
|
static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id)
|
|
{
|
|
int ret;
|
|
unsigned long quirks = id->driver_data;
|
|
struct corsair_drvdata *drvdata;
|
|
struct usb_interface *usbif = to_usb_interface(dev->dev.parent);
|
|
|
|
drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata),
|
|
GFP_KERNEL);
|
|
if (drvdata == NULL)
|
|
return -ENOMEM;
|
|
drvdata->quirks = quirks;
|
|
hid_set_drvdata(dev, drvdata);
|
|
|
|
ret = hid_parse(dev);
|
|
if (ret != 0) {
|
|
hid_err(dev, "parse failed\n");
|
|
return ret;
|
|
}
|
|
ret = hid_hw_start(dev, HID_CONNECT_DEFAULT);
|
|
if (ret != 0) {
|
|
hid_err(dev, "hw start failed\n");
|
|
return ret;
|
|
}
|
|
|
|
if (usbif->cur_altsetting->desc.bInterfaceNumber == 0) {
|
|
if (quirks & CORSAIR_USE_K90_MACRO) {
|
|
ret = k90_init_macro_functions(dev);
|
|
if (ret != 0)
|
|
hid_warn(dev, "Failed to initialize K90 macro functions.\n");
|
|
}
|
|
if (quirks & CORSAIR_USE_K90_BACKLIGHT) {
|
|
ret = k90_init_backlight(dev);
|
|
if (ret != 0)
|
|
hid_warn(dev, "Failed to initialize K90 backlight.\n");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void corsair_remove(struct hid_device *dev)
|
|
{
|
|
k90_cleanup_macro_functions(dev);
|
|
k90_cleanup_backlight(dev);
|
|
|
|
hid_hw_stop(dev);
|
|
}
|
|
|
|
static int corsair_event(struct hid_device *dev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
|
|
|
|
if (!drvdata->k90)
|
|
return 0;
|
|
|
|
switch (usage->hid & HID_USAGE) {
|
|
case CORSAIR_USAGE_MACRO_RECORD_START:
|
|
drvdata->k90->record_led.brightness = 1;
|
|
break;
|
|
case CORSAIR_USAGE_MACRO_RECORD_STOP:
|
|
drvdata->k90->record_led.brightness = 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int corsair_input_mapping(struct hid_device *dev,
|
|
struct hid_input *input,
|
|
struct hid_field *field,
|
|
struct hid_usage *usage, unsigned long **bit,
|
|
int *max)
|
|
{
|
|
int gkey;
|
|
|
|
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
|
|
return 0;
|
|
|
|
gkey = corsair_usage_to_gkey(usage->hid & HID_USAGE);
|
|
if (gkey != 0) {
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_gkey_map[gkey - 1]);
|
|
return 1;
|
|
}
|
|
if ((usage->hid & HID_USAGE) >= CORSAIR_USAGE_SPECIAL_MIN &&
|
|
(usage->hid & HID_USAGE) <= CORSAIR_USAGE_SPECIAL_MAX) {
|
|
switch (usage->hid & HID_USAGE) {
|
|
case CORSAIR_USAGE_MACRO_RECORD_START:
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_record_keycodes[0]);
|
|
return 1;
|
|
|
|
case CORSAIR_USAGE_MACRO_RECORD_STOP:
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_record_keycodes[1]);
|
|
return 1;
|
|
|
|
case CORSAIR_USAGE_M1:
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_profile_keycodes[0]);
|
|
return 1;
|
|
|
|
case CORSAIR_USAGE_M2:
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_profile_keycodes[1]);
|
|
return 1;
|
|
|
|
case CORSAIR_USAGE_M3:
|
|
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
|
|
corsair_profile_keycodes[2]);
|
|
return 1;
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The report descriptor of Corsair Scimitar RGB Pro gaming mouse is
|
|
* non parseable as they define two consecutive Logical Minimum for
|
|
* the Usage Page (Consumer) in rdescs bytes 75 and 77 being 77 0x16
|
|
* that should be obviousy 0x26 for Logical Magimum of 16 bits. This
|
|
* prevents poper parsing of the report descriptor due Logical
|
|
* Minimum being larger than Logical Maximum.
|
|
*
|
|
* This driver fixes the report descriptor for:
|
|
* - USB ID b1c:1b3e, sold as Scimitar RGB Pro Gaming mouse
|
|
*/
|
|
|
|
static __u8 *corsair_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
|
|
unsigned int *rsize)
|
|
{
|
|
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
|
|
|
|
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
|
|
/*
|
|
* Corsair Scimitar RGB Pro report descriptor is broken and
|
|
* defines two different Logical Minimum for the Consumer
|
|
* Application. The byte 77 should be a 0x26 defining a 16
|
|
* bits integer for the Logical Maximum but it is a 0x16
|
|
* instead (Logical Minimum)
|
|
*/
|
|
switch (hdev->product) {
|
|
case USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB:
|
|
if (*rsize >= 172 && rdesc[75] == 0x15 && rdesc[77] == 0x16
|
|
&& rdesc[78] == 0xff && rdesc[79] == 0x0f) {
|
|
hid_info(hdev, "Fixing up report descriptor\n");
|
|
rdesc[77] = 0x26;
|
|
}
|
|
break;
|
|
}
|
|
|
|
}
|
|
return rdesc;
|
|
}
|
|
|
|
static const struct hid_device_id corsair_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90),
|
|
.driver_data = CORSAIR_USE_K90_MACRO |
|
|
CORSAIR_USE_K90_BACKLIGHT },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
|
|
USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB) },
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(hid, corsair_devices);
|
|
|
|
static struct hid_driver corsair_driver = {
|
|
.name = "corsair",
|
|
.id_table = corsair_devices,
|
|
.probe = corsair_probe,
|
|
.event = corsair_event,
|
|
.remove = corsair_remove,
|
|
.input_mapping = corsair_input_mapping,
|
|
.report_fixup = corsair_mouse_report_fixup,
|
|
};
|
|
|
|
module_hid_driver(corsair_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
/* Original K90 driver author */
|
|
MODULE_AUTHOR("Clement Vuchener");
|
|
/* Scimitar PRO RGB driver author */
|
|
MODULE_AUTHOR("Oscar Campos");
|
|
MODULE_DESCRIPTION("HID driver for Corsair devices");
|