LCOV - code coverage report
Current view: top level - drivers/hid/usbhid - usbhid.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1 1 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : #ifndef __USBHID_H
       2             : #define __USBHID_H
       3             : 
       4             : /*
       5             :  *  Copyright (c) 1999 Andreas Gal
       6             :  *  Copyright (c) 2000-2001 Vojtech Pavlik
       7             :  *  Copyright (c) 2006 Jiri Kosina
       8             :  */
       9             : 
      10             : /*
      11             :  * This program is free software; you can redistribute it and/or modify
      12             :  * it under the terms of the GNU General Public License as published by
      13             :  * the Free Software Foundation; either version 2 of the License, or
      14             :  * (at your option) any later version.
      15             :  *
      16             :  * This program is distributed in the hope that it will be useful,
      17             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      18             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      19             :  * GNU General Public License for more details.
      20             :  *
      21             :  * You should have received a copy of the GNU General Public License
      22             :  * along with this program; if not, write to the Free Software
      23             :  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
      24             :  *
      25             :  */
      26             : 
      27             : #include <linux/types.h>
      28             : #include <linux/slab.h>
      29             : #include <linux/list.h>
      30             : #include <linux/mutex.h>
      31             : #include <linux/timer.h>
      32             : #include <linux/wait.h>
      33             : #include <linux/workqueue.h>
      34             : #include <linux/input.h>
      35             : 
      36             : /*  API provided by hid-core.c for USB HID drivers */
      37             : int usbhid_wait_io(struct hid_device* hid);
      38             : void usbhid_close(struct hid_device *hid);
      39             : int usbhid_open(struct hid_device *hid);
      40             : void usbhid_init_reports(struct hid_device *hid);
      41             : void usbhid_submit_report
      42             : (struct hid_device *hid, struct hid_report *report, unsigned char dir);
      43             : int usbhid_get_power(struct hid_device *hid);
      44             : void usbhid_put_power(struct hid_device *hid);
      45           1 : 
      46             : /* iofl flags */
      47             : #define HID_CTRL_RUNNING        1
      48             : #define HID_OUT_RUNNING         2
      49             : #define HID_IN_RUNNING          3
      50             : #define HID_RESET_PENDING       4
      51             : #define HID_SUSPENDED           5
      52             : #define HID_CLEAR_HALT          6
      53             : #define HID_DISCONNECTED        7
      54             : #define HID_STARTED             8
      55             : #define HID_REPORTED_IDLE       9
      56             : #define HID_KEYS_PRESSED        10
      57             : #define HID_LED_ON              11
      58             : 
      59             : /*
      60             :  * USB-specific HID struct, to be pointed to
      61             :  * from struct hid_device->driver_data
      62             :  */
      63             : 
      64             : struct usbhid_device {
      65             :         struct hid_device *hid;                                         /* pointer to corresponding HID dev */
      66             : 
      67             :         struct usb_interface *intf;                                     /* USB interface */
      68             :         int ifnum;                                                      /* USB interface number */
      69             : 
      70             :         unsigned int bufsize;                                           /* URB buffer size */
      71             : 
      72             :         struct urb *urbin;                                              /* Input URB */
      73             :         char *inbuf;                                                    /* Input buffer */
      74             :         dma_addr_t inbuf_dma;                                           /* Input buffer dma */
      75             : 
      76             :         struct urb *urbctrl;                                            /* Control URB */
      77             :         struct usb_ctrlrequest *cr;                                     /* Control request struct */
      78             :         dma_addr_t cr_dma;                                              /* Control request struct dma */
      79             :         struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE];            /* Control fifo */
      80             :         unsigned char ctrlhead, ctrltail;                               /* Control fifo head & tail */
      81             :         char *ctrlbuf;                                                  /* Control buffer */
      82             :         dma_addr_t ctrlbuf_dma;                                         /* Control buffer dma */
      83             :         unsigned long last_ctrl;                                                /* record of last output for timeouts */
      84             : 
      85             :         struct urb *urbout;                                             /* Output URB */
      86             :         struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE];              /* Output pipe fifo */
      87             :         unsigned char outhead, outtail;                                 /* Output pipe fifo head & tail */
      88             :         char *outbuf;                                                   /* Output buffer */
      89             :         dma_addr_t outbuf_dma;                                          /* Output buffer dma */
      90             :         unsigned long last_out;                                                 /* record of last output for timeouts */
      91             : 
      92             :         spinlock_t lock;                                                /* fifo spinlock */
      93             :         unsigned long iofl;                                             /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
      94             :         struct timer_list io_retry;                                     /* Retry timer */
      95             :         unsigned long stop_retry;                                       /* Time to give up, in jiffies */
      96             :         unsigned int retry_delay;                                       /* Delay length in ms */
      97             :         struct work_struct reset_work;                                  /* Task context for resets */
      98             :         struct work_struct restart_work;                                /* waking up for output to be done in a task */
      99             :         wait_queue_head_t wait;                                         /* For sleeping */
     100             :         int ledcount;                                                   /* counting the number of active leds */
     101             : };
     102             : 
     103             : #define hid_to_usb_dev(hid_dev) \
     104             :         container_of(hid_dev->dev.parent->parent, struct usb_device, dev)
     105             : 
     106             : #endif
     107             : 

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