linux-imx
Public
Source
committed 2cf83833fc9x
struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));/* * Roccat common functions for device specific drivers * * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net> *//* * 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. */static inline uint16_t roccat_common2_feature_report(uint8_t report_id){ return 0x300 | report_id;}int roccat_common2_receive(struct usb_device *usb_dev, uint report_id, void *data, uint size){ char *buf; int len; buf = kmalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), HID_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, roccat_common2_feature_report(report_id), 0, buf, size, USB_CTRL_SET_TIMEOUT); memcpy(data, buf, size); kfree(buf); return ((len < 0) ? len : ((len != size) ? -EIO : 0));}EXPORT_SYMBOL_GPL(roccat_common2_receive);int roccat_common2_send(struct usb_device *usb_dev, uint report_id, void const *data, uint size){ char *buf; int len; buf = kmemdup(data, size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), HID_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, roccat_common2_feature_report(report_id), 0, buf, size, USB_CTRL_SET_TIMEOUT); kfree(buf); return ((len < 0) ? len : ((len != size) ? -EIO : 0));}EXPORT_SYMBOL_GPL(roccat_common2_send);enum roccat_common2_control_states { ROCCAT_COMMON_CONTROL_STATUS_CRITICAL = 0, ROCCAT_COMMON_CONTROL_STATUS_OK = 1, ROCCAT_COMMON_CONTROL_STATUS_INVALID = 2, ROCCAT_COMMON_CONTROL_STATUS_BUSY = 3, ROCCAT_COMMON_CONTROL_STATUS_CRITICAL_NEW = 4,};static int roccat_common2_receive_control_status(struct usb_device *usb_dev){ int retval; struct roccat_common2_control control; do { msleep(50); retval = roccat_common2_receive(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL, &control, sizeof(struct roccat_common2_control)); if (retval) return retval; switch (control.value) { case ROCCAT_COMMON_CONTROL_STATUS_OK: return 0; case ROCCAT_COMMON_CONTROL_STATUS_BUSY: