1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 #ifndef __HID_ROCCAT_COMMON_H 3 #define __HID_ROCCAT_COMMON_H 4 5 /* 6 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net> 7 */ 8 9 /* 10 */ 11 12 #include <linux/usb.h> 13 #include <linux/types.h> 14 15 enum roccat_common2_commands { 16 ROCCAT_COMMON_COMMAND_CONTROL = 0x4, 17 }; 18 19 struct roccat_common2_control { 20 uint8_t command; 21 uint8_t value; 22 uint8_t request; /* always 0 on requesting write check */ 23 } __packed; 24 25 int roccat_common2_receive(struct usb_device *usb_dev, uint report_id, 26 void *data, uint size); 27 int roccat_common2_send(struct usb_device *usb_dev, uint report_id, 28 void const *data, uint size); 29 int roccat_common2_send_with_status(struct usb_device *usb_dev, 30 uint command, void const *buf, uint size); 31 32 struct roccat_common2_device { 33 int roccat_claimed; 34 int chrdev_minor; 35 struct mutex lock; 36 }; 37 38 int roccat_common2_device_init_struct(struct usb_device *usb_dev, 39 struct roccat_common2_device *dev); 40 ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj, 41 char *buf, loff_t off, size_t count, 42 size_t real_size, uint command); 43 ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj, 44 void const *buf, loff_t off, size_t count, 45 size_t real_size, uint command); 46 47 #define ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \ 48 static ssize_t roccat_common2_sysfs_write_ ## thingy(struct file *fp, \ 49 struct kobject *kobj, struct bin_attribute *attr, char *buf, \ 50 loff_t off, size_t count) \ 51 { \ 52 return roccat_common2_sysfs_write(fp, kobj, buf, off, count, \ 53 SIZE, COMMAND); \ 54 } 55 56 #define ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) \ 57 static ssize_t roccat_common2_sysfs_read_ ## thingy(struct file *fp, \ 58 struct kobject *kobj, struct bin_attribute *attr, char *buf, \ 59 loff_t off, size_t count) \ 60 { \ 61 return roccat_common2_sysfs_read(fp, kobj, buf, off, count, \ 62 SIZE, COMMAND); \ 63 } 64 65 #define ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE) \ 66 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \ 67 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) 68 69 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \ 70 ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \ 71 static struct bin_attribute bin_attr_ ## thingy = { \ 72 .attr = { .name = #thingy, .mode = 0660 }, \ 73 .size = SIZE, \ 74 .read = roccat_common2_sysfs_read_ ## thingy, \ 75 .write = roccat_common2_sysfs_write_ ## thingy \ 76 } 77 78 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_R(thingy, COMMAND, SIZE) \ 79 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \ 80 static struct bin_attribute bin_attr_ ## thingy = { \ 81 .attr = { .name = #thingy, .mode = 0440 }, \ 82 .size = SIZE, \ 83 .read = roccat_common2_sysfs_read_ ## thingy, \ 84 } 85 86 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_W(thingy, COMMAND, SIZE) \ 87 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \ 88 static struct bin_attribute bin_attr_ ## thingy = { \ 89 .attr = { .name = #thingy, .mode = 0220 }, \ 90 .size = SIZE, \ 91 .write = roccat_common2_sysfs_write_ ## thingy \ 92 } 93 94 #endif 95