#ifndef __USBHID_H #define __USBHID_H /* * Copyright (c) 1999 Andreas Gal * Copyright (c) 2000-2001 Vojtech Pavlik * Copyright (c) 2006 Jiri Kosina */ /* * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <linux/types.h> #include <linux/slab.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/timer.h> #include <linux/wait.h> #include <linux/workqueue.h> #include <linux/input.h> /* API provided by hid-core.c for USB HID drivers */ void usbhid_close(struct hid_device *hid); int usbhid_open(struct hid_device *hid); void usbhid_init_reports(struct hid_device *hid); int usbhid_get_power(struct hid_device *hid); void usbhid_put_power(struct hid_device *hid); struct usb_interface *usbhid_find_interface(int minor); /* iofl flags */ #define HID_CTRL_RUNNING 1 #define HID_OUT_RUNNING 2 #define HID_IN_RUNNING 3 #define HID_RESET_PENDING 4 #define HID_SUSPENDED 5 #define HID_CLEAR_HALT 6 #define HID_DISCONNECTED 7 #define HID_STARTED 8 #define HID_KEYS_PRESSED 10 #define HID_NO_BANDWIDTH 11 #define HID_RESUME_RUNNING 12 /* * USB-specific HID struct, to be pointed to * from struct hid_device->driver_data */ struct usbhid_device { struct hid_device *hid; /* pointer to corresponding HID dev */ struct usb_interface *intf; /* USB interface */ int ifnum; /* USB interface number */ unsigned int bufsize; /* URB buffer size */ struct urb *urbin; /* Input URB */ char *inbuf; /* Input buffer */ dma_addr_t inbuf_dma; /* Input buffer dma */ struct urb *urbctrl; /* Control URB */ struct usb_ctrlrequest *cr; /* Control request struct */ struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE]; /* Control fifo */ unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */ char *ctrlbuf; /* Control buffer */ dma_addr_t ctrlbuf_dma; /* Control buffer dma */ unsigned long last_ctrl; /* record of last output for timeouts */ struct urb *urbout; /* Output URB */ struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */ unsigned char outhead, outtail; /* Output pipe fifo head & tail */ char *outbuf; /* Output buffer */ dma_addr_t outbuf_dma; /* Output buffer dma */ unsigned long last_out; /* record of last output for timeouts */ spinlock_t lock; /* fifo spinlock */ unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ struct timer_list io_retry; /* Retry timer */ unsigned long stop_retry; /* Time to give up, in jiffies */ unsigned int retry_delay; /* Delay length in ms */ struct work_struct reset_work; /* Task context for resets */ wait_queue_head_t wait; /* For sleeping */ }; #define hid_to_usb_dev(hid_dev) \ to_usb_device(hid_dev->dev.parent->parent) #endif |