freebsd-dev/sys/dev/mse/msevar.h
John Baldwin d0d8c133c7 Add locking and mark MPSAFE.
- Add a mutex to protect the softc.
- Use callout(9) instead of timeout(9).
- Consolidate duplicated detach routines into a bus-independent detach
  routine.
- Add an extra sleep lock flag (MSESC_READING) to prevent other readers
  from reading while the first reader is copying data out of sc_bytes[]
  via uiomove().
- Use bus_*() instead of bus_space_*().

Tested by:	nyan
2014-10-11 19:36:59 +00:00

128 lines
4.1 KiB
C

/*-
* Copyright (c) 2004 M. Warner Losh
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*-
* Copyright 1992 by the University of Guelph
*
* Permission to use, copy and modify this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation.
* University of Guelph makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
/* driver configuration flags (config) */
#define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */
#define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL)
/*
* Software control structure for mouse. The sc_enablemouse(),
* sc_disablemouse() and sc_getmouse() routines must be called locked.
*/
typedef struct mse_softc {
int sc_flags;
int sc_mousetype;
struct selinfo sc_selp;
struct resource *sc_port;
struct resource *sc_intr;
void *sc_ih;
void (*sc_enablemouse)(struct resource *port);
void (*sc_disablemouse)(struct resource *port);
void (*sc_getmouse)(struct resource *port, int *dx, int *dy,
int *but);
int sc_deltax;
int sc_deltay;
int sc_obuttons;
int sc_buttons;
int sc_bytesread;
u_char sc_bytes[MOUSE_SYS_PACKETSIZE];
struct callout sc_callout;
struct mtx sc_lock;
int sc_watchdog;
struct cdev *sc_dev;
struct cdev *sc_ndev;
mousehw_t hw;
mousemode_t mode;
mousestatus_t status;
} mse_softc_t;
#define MSE_LOCK(sc) mtx_lock(&(sc)->sc_lock)
#define MSE_UNLOCK(sc) mtx_unlock(&(sc)->sc_lock)
#define MSE_ASSERT_LOCKED(sc) mtx_assert(&(sc)->sc_lock, MA_OWNED)
/* Flags */
#define MSESC_OPEN 0x1
#define MSESC_WANT 0x2
#define MSESC_READING 0x4
/* and Mouse Types */
#define MSE_NONE 0 /* don't move this! */
/* pc98 bus mouse types */
#define MSE_98BUSMOUSE 0x1
/* isa bus mouse types */
#define MSE_LOGITECH 0x1
#define MSE_ATIINPORT 0x2
#define MSE_LOGI_SIG 0xA5
/* XXX msereg.h? */
#define MSE_PORTA 0
#define MSE_PORTB 1
#define MSE_PORTC 2
#define MSE_PORTD 3
#define MSE_IOSIZE 4
/*
* Table of mouse types.
* Keep the Logitech last, since I haven't figured out how to probe it
* properly yet. (Someday I'll have the documentation.)
*/
struct mse_types {
int m_type; /* Type of bus mouse */
int (*m_probe)(device_t dev, mse_softc_t *sc);
/* Probe routine to test for it */
void (*m_enable)(struct resource *port);
/* Start routine */
void (*m_disable)(struct resource *port);
/* Disable interrupts routine */
void (*m_get)(struct resource *port, int *dx, int *dy, int *but);
/* and get mouse status */
mousehw_t m_hw; /* buttons iftype type model hwid */
mousemode_t m_mode; /* proto rate res accel level size mask */
};
extern devclass_t mse_devclass;
int mse_common_attach(device_t);
int mse_detach(device_t);