korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 16:24:13 +08:00
Code Issues Packages Projects Releases Wiki Activity
2a3eb51e30
linux/drivers/input/joystick/db9.c
Kees Cook e99e88a9d2 treewide: setup_timer() -> timer_setup() 
This converts all remaining cases of the old setup_timer() API into using
timer_setup(), where the callback argument is the structure already
holding the struct timer_list. These should have no behavioral changes,
since they just change which pointer is passed into the callback with
the same available pointers after conversion. It handles the following
examples, in addition to some other variations.

Casting from unsigned long:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    setup_timer(&ptr->my_timer, my_callback, ptr);

and forced object casts:

    void my_callback(struct something *ptr)
    {
    ...
    }
    ...
    setup_timer(&ptr->my_timer, my_callback, (unsigned long)ptr);

become:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    timer_setup(&ptr->my_timer, my_callback, 0);

Direct function assignments:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    ptr->my_timer.function = my_callback;

have a temporary cast added, along with converting the args:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    ptr->my_timer.function = (TIMER_FUNC_TYPE)my_callback;

And finally, callbacks without a data assignment:

    void my_callback(unsigned long data)
    {
    ...
    }
    ...
    setup_timer(&ptr->my_timer, my_callback, 0);

have their argument renamed to verify they're unused during conversion:

    void my_callback(struct timer_list *unused)
    {
    ...
    }
    ...
    timer_setup(&ptr->my_timer, my_callback, 0);

The conversion is done with the following Coccinelle script:

spatch --very-quiet --all-includes --include-headers \
	-I ./arch/x86/include -I ./arch/x86/include/generated \
	-I ./include -I ./arch/x86/include/uapi \
	-I ./arch/x86/include/generated/uapi -I ./include/uapi \
	-I ./include/generated/uapi --include ./include/linux/kconfig.h \
	--dir . \
	--cocci-file ~/src/data/timer_setup.cocci

@fix_address_of@
expression e;
@@

 setup_timer(
-&(e)
+&e
 , ...)

// Update any raw setup_timer() usages that have a NULL callback, but
// would otherwise match change_timer_function_usage, since the latter
// will update all function assignments done in the face of a NULL
// function initialization in setup_timer().
@change_timer_function_usage_NULL@
expression _E;
identifier _timer;
type _cast_data;
@@

(
-setup_timer(&_E->_timer, NULL, _E);
+timer_setup(&_E->_timer, NULL, 0);
|
-setup_timer(&_E->_timer, NULL, (_cast_data)_E);
+timer_setup(&_E->_timer, NULL, 0);
|
-setup_timer(&_E._timer, NULL, &_E);
+timer_setup(&_E._timer, NULL, 0);
|
-setup_timer(&_E._timer, NULL, (_cast_data)&_E);
+timer_setup(&_E._timer, NULL, 0);
)

@change_timer_function_usage@
expression _E;
identifier _timer;
struct timer_list _stl;
identifier _callback;
type _cast_func, _cast_data;
@@

(
-setup_timer(&_E->_timer, _callback, _E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, &_callback, _E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, _callback, (_cast_data)_E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, &_callback, (_cast_data)_E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, (_cast_func)_callback, _E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, (_cast_func)&_callback, _E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, (_cast_func)&_callback, (_cast_data)_E);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E._timer, _callback, (_cast_data)_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, _callback, (_cast_data)&_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, &_callback, (_cast_data)_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, &_callback, (_cast_data)&_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)&_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)_E);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)&_E);
+timer_setup(&_E._timer, _callback, 0);
|
 _E->_timer@_stl.function = _callback;
|
 _E->_timer@_stl.function = &_callback;
|
 _E->_timer@_stl.function = (_cast_func)_callback;
|
 _E->_timer@_stl.function = (_cast_func)&_callback;
|
 _E._timer@_stl.function = _callback;
|
 _E._timer@_stl.function = &_callback;
|
 _E._timer@_stl.function = (_cast_func)_callback;
|
 _E._timer@_stl.function = (_cast_func)&_callback;
)

// callback(unsigned long arg)
@change_callback_handle_cast
 depends on change_timer_function_usage@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
identifier _handle;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
(
	... when != _origarg
	_handletype *_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
)
 }

// callback(unsigned long arg) without existing variable
@change_callback_handle_cast_no_arg
 depends on change_timer_function_usage &&
                     !change_callback_handle_cast@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
+	_handletype *_origarg = from_timer(_origarg, t, _timer);
+
	... when != _origarg
-	(_handletype *)_origarg
+	_origarg
	... when != _origarg
 }

// Avoid already converted callbacks.
@match_callback_converted
 depends on change_timer_function_usage &&
            !change_callback_handle_cast &&
	    !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier t;
@@

 void _callback(struct timer_list *t)
 { ... }

// callback(struct something *handle)
@change_callback_handle_arg
 depends on change_timer_function_usage &&
	    !match_callback_converted &&
            !change_callback_handle_cast &&
            !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
@@

 void _callback(
-_handletype *_handle
+struct timer_list *t
 )
 {
+	_handletype *_handle = from_timer(_handle, t, _timer);
	...
 }

// If change_callback_handle_arg ran on an empty function, remove
// the added handler.
@unchange_callback_handle_arg
 depends on change_timer_function_usage &&
	    change_callback_handle_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
identifier t;
@@

 void _callback(struct timer_list *t)
 {
-	_handletype *_handle = from_timer(_handle, t, _timer);
 }

// We only want to refactor the setup_timer() data argument if we've found
// the matching callback. This undoes changes in change_timer_function_usage.
@unchange_timer_function_usage
 depends on change_timer_function_usage &&
            !change_callback_handle_cast &&
            !change_callback_handle_cast_no_arg &&
	    !change_callback_handle_arg@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type change_timer_function_usage._cast_data;
@@

(
-timer_setup(&_E->_timer, _callback, 0);
+setup_timer(&_E->_timer, _callback, (_cast_data)_E);
|
-timer_setup(&_E._timer, _callback, 0);
+setup_timer(&_E._timer, _callback, (_cast_data)&_E);
)

// If we fixed a callback from a .function assignment, fix the
// assignment cast now.
@change_timer_function_assignment
 depends on change_timer_function_usage &&
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_func;
typedef TIMER_FUNC_TYPE;
@@

(
 _E->_timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E->_timer.function =
-&_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E->_timer.function =
-(_cast_func)_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E->_timer.function =
-(_cast_func)&_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-&_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)&_callback
+(TIMER_FUNC_TYPE)_callback
 ;
)

// Sometimes timer functions are called directly. Replace matched args.
@change_timer_function_calls
 depends on change_timer_function_usage &&
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression _E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_data;
@@

 _callback(
(
-(_cast_data)_E
+&_E->_timer
|
-(_cast_data)&_E
+&_E._timer
|
-_E
+&_E->_timer
)
 )

// If a timer has been configured without a data argument, it can be
// converted without regard to the callback argument, since it is unused.
@match_timer_function_unused_data@
expression _E;
identifier _timer;
identifier _callback;
@@

(
-setup_timer(&_E->_timer, _callback, 0);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, _callback, 0L);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E->_timer, _callback, 0UL);
+timer_setup(&_E->_timer, _callback, 0);
|
-setup_timer(&_E._timer, _callback, 0);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, _callback, 0L);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_E._timer, _callback, 0UL);
+timer_setup(&_E._timer, _callback, 0);
|
-setup_timer(&_timer, _callback, 0);
+timer_setup(&_timer, _callback, 0);
|
-setup_timer(&_timer, _callback, 0L);
+timer_setup(&_timer, _callback, 0);
|
-setup_timer(&_timer, _callback, 0UL);
+timer_setup(&_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0L);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0UL);
+timer_setup(_timer, _callback, 0);
)

@change_callback_unused_data
 depends on match_timer_function_unused_data@
identifier match_timer_function_unused_data._callback;
type _origtype;
identifier _origarg;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *unused
 )
 {
	... when != _origarg
 }

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-11-21 15:57:07 -08:00

723 lines
21 KiB
C
Raw Blame History

/*
* Copyright (c) 1999-2001 Vojtech Pavlik
*
* Based on the work of:
* Andree Borrmann Mats Sjövall
*/
/*
* Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
*/
/*
* 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
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/parport.h>
#include <linux/input.h>
#include <linux/mutex.h>
#include <linux/slab.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
MODULE_LICENSE("GPL");
struct db9_config {
int args[2];
unsigned int nargs;
};
#define DB9_MAX_PORTS 3
static struct db9_config db9_cfg[DB9_MAX_PORTS];
module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);
MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0);
MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);
MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
#define DB9_ARG_PARPORT 0
#define DB9_ARG_MODE 1
#define DB9_MULTI_STICK 0x01
#define DB9_MULTI2_STICK 0x02
#define DB9_GENESIS_PAD 0x03
#define DB9_GENESIS5_PAD 0x05
#define DB9_GENESIS6_PAD 0x06
#define DB9_SATURN_PAD 0x07
#define DB9_MULTI_0802 0x08
#define DB9_MULTI_0802_2 0x09
#define DB9_CD32_PAD 0x0A
#define DB9_SATURN_DPP 0x0B
#define DB9_SATURN_DPP_2 0x0C
#define DB9_MAX_PAD 0x0D
#define DB9_UP 0x01
#define DB9_DOWN 0x02
#define DB9_LEFT 0x04
#define DB9_RIGHT 0x08
#define DB9_FIRE1 0x10
#define DB9_FIRE2 0x20
#define DB9_FIRE3 0x40
#define DB9_FIRE4 0x80
#define DB9_NORMAL 0x0a
#define DB9_NOSELECT 0x08
#define DB9_GENESIS6_DELAY 14
#define DB9_REFRESH_TIME HZ/100
#define DB9_MAX_DEVICES 2
struct db9_mode_data {
const char *name;
const short *buttons;
int n_buttons;
int n_pads;
int n_axis;
int bidirectional;
int reverse;
};
struct db9 {
struct input_dev *dev[DB9_MAX_DEVICES];
struct timer_list timer;
struct pardevice *pd;
int mode;
int used;
int parportno;
struct mutex mutex;
char phys[DB9_MAX_DEVICES][32];
};
static struct db9 *db9_base[3];
static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
static const struct db9_mode_data db9_modes[] = {
{ NULL, NULL, 0, 0, 0, 0, 0 },
{ "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
{ "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 },
{ "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 },
{ NULL, NULL, 0, 0, 0, 0, 0 },
{ "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 },
{ "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 },
{ "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 },
{ "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
{ "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 },
{ "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 },
{ "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 },
{ "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 0, 0 },
};
/*
* Saturn controllers
*/
#define DB9_SATURN_DELAY 300
static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
/*
* db9_saturn_write_sub() writes 2 bit data.
*/
static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
{
unsigned char c;
switch (type) {
case 1: /* DPP1 */
c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
parport_write_data(port, c);
break;
case 2: /* DPP2 */
c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
parport_write_data(port, c);
break;
case 0: /* DB9 */
c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
parport_write_control(port, c);
break;
}
}
/*
* gc_saturn_read_sub() reads 4 bit data.
*/
static unsigned char db9_saturn_read_sub(struct parport *port, int type)
{
unsigned char data;
if (type) {
/* DPP */
data = parport_read_status(port) ^ 0x80;
return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
| (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
} else {
/* DB9 */
data = parport_read_data(port) & 0x0f;
return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
| (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
}
}
/*
* db9_saturn_read_analog() sends clock and reads 8 bit data.
*/
static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
{
unsigned char data;
db9_saturn_write_sub(port, type, 0, powered, 0);
udelay(DB9_SATURN_DELAY);
data = db9_saturn_read_sub(port, type) << 4;
db9_saturn_write_sub(port, type, 2, powered, 0);
udelay(DB9_SATURN_DELAY);
data |= db9_saturn_read_sub(port, type);
return data;
}
/*
* db9_saturn_read_packet() reads whole saturn packet at connector
* and returns device identifier code.
*/
static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
{
int i, j;
unsigned char tmp;
db9_saturn_write_sub(port, type, 3, powered, 0);
data[0] = db9_saturn_read_sub(port, type);
switch (data[0] & 0x0f) {
case 0xf:
/* 1111 no pad */
return data[0] = 0xff;
case 0x4: case 0x4 | 0x8:
/* ?100 : digital controller */
db9_saturn_write_sub(port, type, 0, powered, 1);
data[2] = db9_saturn_read_sub(port, type) << 4;
db9_saturn_write_sub(port, type, 2, powered, 1);
data[1] = db9_saturn_read_sub(port, type) << 4;
db9_saturn_write_sub(port, type, 1, powered, 1);
data[1] |= db9_saturn_read_sub(port, type);
db9_saturn_write_sub(port, type, 3, powered, 1);
/* data[2] |= db9_saturn_read_sub(port, type); */
data[2] |= data[0];
return data[0] = 0x02;
case 0x1:
/* 0001 : analog controller or multitap */
db9_saturn_write_sub(port, type, 2, powered, 0);
udelay(DB9_SATURN_DELAY);
data[0] = db9_saturn_read_analog(port, type, powered);
if (data[0] != 0x41) {
/* read analog controller */
for (i = 0; i < (data[0] & 0x0f); i++)
data[i + 1] = db9_saturn_read_analog(port, type, powered);
db9_saturn_write_sub(port, type, 3, powered, 0);
return data[0];
} else {
/* read multitap */
if (db9_saturn_read_analog(port, type, powered) != 0x60)
return data[0] = 0xff;
for (i = 0; i < 60; i += 10) {
data[i] = db9_saturn_read_analog(port, type, powered);
if (data[i] != 0xff)
/* read each pad */
for (j = 0; j < (data[i] & 0x0f); j++)
data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
}
db9_saturn_write_sub(port, type, 3, powered, 0);
return 0x41;
}
case 0x0:
/* 0000 : mouse */
db9_saturn_write_sub(port, type, 2, powered, 0);
udelay(DB9_SATURN_DELAY);
tmp = db9_saturn_read_analog(port, type, powered);
if (tmp == 0xff) {
for (i = 0; i < 3; i++)
data[i + 1] = db9_saturn_read_analog(port, type, powered);
db9_saturn_write_sub(port, type, 3, powered, 0);
return data[0] = 0xe3;
}
default:
return data[0];
}
}
/*
* db9_saturn_report() analyzes packet and reports.
*/
static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads)
{
struct input_dev *dev;
int tmp, i, j;
tmp = (id == 0x41) ? 60 : 10;
for (j = 0; j < tmp && n < max_pads; j += 10, n++) {
dev = devs[n];
switch (data[j]) {
case 0x16: /* multi controller (analog 4 axis) */
input_report_abs(dev, db9_abs[5], data[j + 6]);
case 0x15: /* mission stick (analog 3 axis) */
input_report_abs(dev, db9_abs[3], data[j + 4]);
input_report_abs(dev, db9_abs[4], data[j + 5]);
case 0x13: /* racing controller (analog 1 axis) */
input_report_abs(dev, db9_abs[2], data[j + 3]);
case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
case 0x02: /* digital pad (digital 2 axis + buttons) */
input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
for (i = 0; i < 9; i++)
input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
break;
case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
for (i = 0; i < 9; i++)
input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
input_report_abs(dev, db9_abs[2], data[j + 3]);
input_report_abs(dev, db9_abs[3], data[j + 4]);
input_report_abs(dev, db9_abs[4], data[j + 5]);
/*
input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
*/
input_report_abs(dev, db9_abs[6], data[j + 7]);
input_report_abs(dev, db9_abs[7], data[j + 8]);
input_report_abs(dev, db9_abs[5], data[j + 9]);
break;
case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
input_report_key(dev, BTN_A, data[j + 3] & 0x80);
input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f);
break;
case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
input_report_key(dev, BTN_START, data[j + 1] & 0x08);
input_report_key(dev, BTN_A, data[j + 1] & 0x04);
input_report_key(dev, BTN_C, data[j + 1] & 0x02);
input_report_key(dev, BTN_B, data[j + 1] & 0x01);
input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80);
input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
break;
case 0xff:
default: /* no pad */
input_report_abs(dev, db9_abs[0], 0);
input_report_abs(dev, db9_abs[1], 0);
for (i = 0; i < 9; i++)
input_report_key(dev, db9_cd32_btn[i], 0);
break;
}
}
return n;
}
static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[])
{
unsigned char id, data[60];
int type, n, max_pads;
int tmp, i;
switch (mode) {
case DB9_SATURN_PAD:
type = 0;
n = 1;
break;
case DB9_SATURN_DPP:
type = 1;
n = 1;
break;
case DB9_SATURN_DPP_2:
type = 1;
n = 2;
break;
default:
return -1;
}
max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
for (tmp = 0, i = 0; i < n; i++) {
id = db9_saturn_read_packet(port, data, type + i, 1);
tmp = db9_saturn_report(id, data, devs, tmp, max_pads);
}
return 0;
}
static void db9_timer(struct timer_list *t)
{
struct db9 *db9 = from_timer(db9, t, timer);
struct parport *port = db9->pd->port;
struct input_dev *dev = db9->dev[0];
struct input_dev *dev2 = db9->dev[1];
int data, i;
switch (db9->mode) {
case DB9_MULTI_0802_2:
data = parport_read_data(port) >> 3;
input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
case DB9_MULTI_0802:
data = parport_read_status(port) >> 3;
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
break;
case DB9_MULTI_STICK:
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
break;
case DB9_MULTI2_STICK:
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2);
break;
case DB9_GENESIS_PAD:
parport_write_control(port, DB9_NOSELECT);
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
break;
case DB9_GENESIS5_PAD:
parport_write_control(port, DB9_NOSELECT);
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
break;
case DB9_GENESIS6_PAD:
parport_write_control(port, DB9_NOSELECT); /* 1 */
udelay(DB9_GENESIS6_DELAY);
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NOSELECT); /* 2 */
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NOSELECT); /* 3 */
udelay(DB9_GENESIS6_DELAY);
data=parport_read_data(port);
input_report_key(dev, BTN_X, ~data & DB9_LEFT);
input_report_key(dev, BTN_Y, ~data & DB9_DOWN);
input_report_key(dev, BTN_Z, ~data & DB9_UP);
input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NOSELECT); /* 4 */
udelay(DB9_GENESIS6_DELAY);
parport_write_control(port, DB9_NORMAL);
break;
case DB9_SATURN_PAD:
case DB9_SATURN_DPP:
case DB9_SATURN_DPP_2:
db9_saturn(db9->mode, port, db9->dev);
break;
case DB9_CD32_PAD:
data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
parport_write_control(port, 0x0a);
for (i = 0; i < 7; i++) {
data = parport_read_data(port);
parport_write_control(port, 0x02);
parport_write_control(port, 0x0a);
input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
}
parport_write_control(port, 0x00);
break;
}
input_sync(dev);
mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
}
static int db9_open(struct input_dev *dev)
{
struct db9 *db9 = input_get_drvdata(dev);
struct parport *port = db9->pd->port;
int err;
err = mutex_lock_interruptible(&db9->mutex);
if (err)
return err;
if (!db9->used++) {
parport_claim(db9->pd);
parport_write_data(port, 0xff);
if (db9_modes[db9->mode].reverse) {
parport_data_reverse(port);
parport_write_control(port, DB9_NORMAL);
}
mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
}
mutex_unlock(&db9->mutex);
return 0;
}
static void db9_close(struct input_dev *dev)
{
struct db9 *db9 = input_get_drvdata(dev);
struct parport *port = db9->pd->port;
mutex_lock(&db9->mutex);
if (!--db9->used) {
del_timer_sync(&db9->timer);
parport_write_control(port, 0x00);
parport_data_forward(port);
parport_release(db9->pd);
}
mutex_unlock(&db9->mutex);
}
static void db9_attach(struct parport *pp)
{
struct db9 *db9;
const struct db9_mode_data *db9_mode;
struct pardevice *pd;
struct input_dev *input_dev;
int i, j, port_idx;
int mode;
struct pardev_cb db9_parport_cb;
for (port_idx = 0; port_idx < DB9_MAX_PORTS; port_idx++) {
if (db9_cfg[port_idx].nargs == 0 ||
db9_cfg[port_idx].args[DB9_ARG_PARPORT] < 0)
continue;
if (db9_cfg[port_idx].args[DB9_ARG_PARPORT] == pp->number)
break;
}
if (port_idx == DB9_MAX_PORTS) {
pr_debug("Not using parport%d.\n", pp->number);
return;
}
mode = db9_cfg[port_idx].args[DB9_ARG_MODE];
if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) {
printk(KERN_ERR "db9.c: Bad device type %d\n", mode);
return;
}
db9_mode = &db9_modes[mode];
if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
return;
}
memset(&db9_parport_cb, 0, sizeof(db9_parport_cb));
db9_parport_cb.flags = PARPORT_FLAG_EXCL;
pd = parport_register_dev_model(pp, "db9", &db9_parport_cb, port_idx);
if (!pd) {
printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
return;
}
db9 = kzalloc(sizeof(struct db9), GFP_KERNEL);
if (!db9)
goto err_unreg_pardev;
mutex_init(&db9->mutex);
db9->pd = pd;
db9->mode = mode;
db9->parportno = pp->number;
timer_setup(&db9->timer, db9_timer, 0);
for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) {
db9->dev[i] = input_dev = input_allocate_device();
if (!input_dev) {
printk(KERN_ERR "db9.c: Not enough memory for input device\n");
goto err_unreg_devs;
}
snprintf(db9->phys[i], sizeof(db9->phys[i]),
"%s/input%d", db9->pd->port->name, i);
input_dev->name = db9_mode->name;
input_dev->phys = db9->phys[i];
input_dev->id.bustype = BUS_PARPORT;
input_dev->id.vendor = 0x0002;
input_dev->id.product = mode;
input_dev->id.version = 0x0100;
input_set_drvdata(input_dev, db9);
input_dev->open = db9_open;
input_dev->close = db9_close;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
for (j = 0; j < db9_mode->n_buttons; j++)
set_bit(db9_mode->buttons[j], input_dev->keybit);
for (j = 0; j < db9_mode->n_axis; j++) {
if (j < 2)
input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0);
else
input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
}
if (input_register_device(input_dev))
goto err_free_dev;
}
db9_base[port_idx] = db9;
return;
err_free_dev:
input_free_device(db9->dev[i]);
err_unreg_devs:
while (--i >= 0)
input_unregister_device(db9->dev[i]);
kfree(db9);
err_unreg_pardev:
parport_unregister_device(pd);
}
static void db9_detach(struct parport *port)
{
int i;
struct db9 *db9;
for (i = 0; i < DB9_MAX_PORTS; i++) {
if (db9_base[i] && db9_base[i]->parportno == port->number)
break;
}
if (i == DB9_MAX_PORTS)
return;
db9 = db9_base[i];
db9_base[i] = NULL;
for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++)
input_unregister_device(db9->dev[i]);
parport_unregister_device(db9->pd);
kfree(db9);
}
static struct parport_driver db9_parport_driver = {
.name = "db9",
.match_port = db9_attach,
.detach = db9_detach,
.devmodel = true,
};
static int __init db9_init(void)
{
int i;
int have_dev = 0;
for (i = 0; i < DB9_MAX_PORTS; i++) {
if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0)
continue;
if (db9_cfg[i].nargs < 2) {
printk(KERN_ERR "db9.c: Device type must be specified.\n");
return -EINVAL;
}
have_dev = 1;
}
if (!have_dev)
return -ENODEV;
return parport_register_driver(&db9_parport_driver);
}
static void __exit db9_exit(void)
{
parport_unregister_driver(&db9_parport_driver);
}
module_init(db9_init);
module_exit(db9_exit);
Reference in New Issue View Git Blame Copy Permalink