/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __HID_ROCCAT_COMMON_H #define __HID_ROCCAT_COMMON_H /* * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net> */ /* */ #include <linux/usb.h> #include <linux/types.h> enum roccat_common2_commands { ROCCAT_COMMON_COMMAND_CONTROL = 0x4, }; struct roccat_common2_control { uint8_t command; uint8_t value; uint8_t request; /* always 0 on requesting write check */ } __packed; int roccat_common2_receive(struct usb_device *usb_dev, uint report_id, void *data, uint size); int roccat_common2_send(struct usb_device *usb_dev, uint report_id, void const *data, uint size); int roccat_common2_send_with_status(struct usb_device *usb_dev, uint command, void const *buf, uint size); struct roccat_common2_device { int roccat_claimed; int chrdev_minor; struct mutex lock; }; int roccat_common2_device_init_struct(struct usb_device *usb_dev, struct roccat_common2_device *dev); ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj, char *buf, loff_t off, size_t count, size_t real_size, uint command); ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj, void const *buf, loff_t off, size_t count, size_t real_size, uint command); #define ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \ static ssize_t roccat_common2_sysfs_write_ ## thingy(struct file *fp, \ struct kobject *kobj, struct bin_attribute *attr, char *buf, \ loff_t off, size_t count) \ { \ return roccat_common2_sysfs_write(fp, kobj, buf, off, count, \ SIZE, COMMAND); \ } #define ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) \ static ssize_t roccat_common2_sysfs_read_ ## thingy(struct file *fp, \ struct kobject *kobj, struct bin_attribute *attr, char *buf, \ loff_t off, size_t count) \ { \ return roccat_common2_sysfs_read(fp, kobj, buf, off, count, \ SIZE, COMMAND); \ } #define ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE) \ ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \ ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) #define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \ ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \ static struct bin_attribute bin_attr_ ## thingy = { \ .attr = { .name = #thingy, .mode = 0660 }, \ .size = SIZE, \ .read = roccat_common2_sysfs_read_ ## thingy, \ .write = roccat_common2_sysfs_write_ ## thingy \ } #define ROCCAT_COMMON2_BIN_ATTRIBUTE_R(thingy, COMMAND, SIZE) \ ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \ static struct bin_attribute bin_attr_ ## thingy = { \ .attr = { .name = #thingy, .mode = 0440 }, \ .size = SIZE, \ .read = roccat_common2_sysfs_read_ ## thingy, \ } #define ROCCAT_COMMON2_BIN_ATTRIBUTE_W(thingy, COMMAND, SIZE) \ ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \ static struct bin_attribute bin_attr_ ## thingy = { \ .attr = { .name = #thingy, .mode = 0220 }, \ .size = SIZE, \ .write = roccat_common2_sysfs_write_ ## thingy \ } #endif