hv_kbdc.h

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    1 /*-
    2  * Copyright (c) 2017 Microsoft Corp.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice unmodified, this list of conditions, and the following
   10  *    disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #ifndef _HV_KBD_H
   30 #define _HV_KBD_H
   31 #include <sys/param.h>
   32 #include <sys/lock.h>
   33 #include <sys/mutex.h>
   34 #include <sys/queue.h>
   35 #include <sys/systm.h>
   36 
   37 #include <dev/kbd/kbdreg.h>
   38 
   39 #include "opt_evdev.h"
   40 #ifdef EVDEV_SUPPORT
   41 #include <dev/evdev/evdev.h>
   42 #include <dev/evdev/input.h>
   43 #endif
   44 
   45 #define HVKBD_DRIVER_NAME       "hvkbd"
   46 #define IS_UNICODE              (1)
   47 #define IS_BREAK                (2)
   48 #define IS_E0                   (4)
   49 #define IS_E1                   (8)
   50 
   51 #define XTKBD_EMUL0             (0xe0)
   52 #define XTKBD_EMUL1             (0xe1)
   53 #define XTKBD_RELEASE           (0x80)
   54 
   55 #define DEBUG_HVSC(sc, ...) do {                        \
   56         if (sc->debug > 0) {                            \
   57                 device_printf(sc->dev, __VA_ARGS__);    \
   58         }                                               \
   59 } while (0)
   60 #define DEBUG_HVKBD(kbd, ...) do {                      \
   61         hv_kbd_sc *sc = (kbd)->kb_data;                 \
   62         DEBUG_HVSC(sc, __VA_ARGS__);                            \
   63 } while (0)
   64 
   65 struct vmbus_channel;
   66 struct vmbus_xact_ctx;
   67 
   68 typedef struct keystroke_t {
   69         uint16_t                        makecode;
   70         uint32_t                        info;
   71 } keystroke;
   72 
   73 typedef struct keystroke_info {
   74         LIST_ENTRY(keystroke_info)      link;
   75         STAILQ_ENTRY(keystroke_info)    slink;
   76         keystroke                       ks;
   77 } keystroke_info;
   78 
   79 typedef struct hv_kbd_sc_t {
   80         struct vmbus_channel            *hs_chan;
   81         device_t                        dev;
   82         struct vmbus_xact_ctx           *hs_xact_ctx;
   83         int32_t                         buflen;
   84         uint8_t                         *buf;
   85 
   86         struct mtx                      ks_mtx;
   87         LIST_HEAD(, keystroke_info)     ks_free_list;
   88         STAILQ_HEAD(, keystroke_info)   ks_queue;       /* keystroke info queue */
   89 
   90         keyboard_t                      sc_kbd;
   91         int                             sc_mode;
   92         int                             sc_state;
   93         uint32_t                        sc_accents;     /* accent key index (> 0) */
   94         uint32_t                        sc_composed_char; /* composed char code */
   95         uint8_t                         sc_prefix;      /* AT scan code prefix */
   96         int                             sc_polling;     /* polling recursion count */
   97         uint32_t                        sc_flags;
   98         int                             debug;
   99 
  100 #ifdef EVDEV_SUPPORT
  101         struct evdev_dev                *ks_evdev;
  102         int                             ks_evdev_state;
  103 #endif
  104 } hv_kbd_sc;
  105 
  106 int     hv_kbd_produce_ks(hv_kbd_sc *sc, const keystroke *ks);
  107 int     hv_kbd_fetch_top(hv_kbd_sc *sc, keystroke *top);
  108 int     hv_kbd_modify_top(hv_kbd_sc *sc, keystroke *top);
  109 int     hv_kbd_remove_top(hv_kbd_sc *sc);
  110 int     hv_kbd_prod_is_ready(hv_kbd_sc *sc);
  111 void    hv_kbd_read_channel(struct vmbus_channel *, void *);
  112 
  113 int     hv_kbd_drv_attach(device_t dev);
  114 int     hv_kbd_drv_detach(device_t dev);
  115 
  116 int     hvkbd_driver_load(module_t, int, void *);
  117 void    hv_kbd_intr(hv_kbd_sc *sc);
  118 #endif

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FreeBSD/Linux Kernel Cross Reference sys/dev/hyperv/input/hv_kbdc.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/hyperv/input/hv_kbdc.h