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linux-next/drivers/input/joystick/joydump.c
Linus Torvalds 08b5fa8199 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for Rohm BU21029 touch controller

 - new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free

 - updates to Atmel, eeti. pxrc and iforce drivers

 - assorted driver cleanups and fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  MAINTAINERS: Add PhoenixRC Flight Controller Adapter
  Input: do not use WARN() in input_alloc_absinfo()
  Input: mark expected switch fall-throughs
  Input: raydium_i2c_ts - use true and false for boolean values
  Input: evdev - switch to bitmap API
  Input: gpio-keys - switch to bitmap_zalloc()
  Input: elan_i2c_smbus - cast sizeof to int for comparison
  bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
  md: Avoid namespace collision with bitmap API
  dm: Avoid namespace collision with bitmap API
  Input: pm8941-pwrkey - add resin entry
  Input: pm8941-pwrkey - abstract register offsets and event code
  Input: iforce - reorganize joystick configuration lists
  Input: atmel_mxt_ts - move completion to after config crc is updated
  Input: atmel_mxt_ts - don't report zero pressure from T9
  Input: atmel_mxt_ts - zero terminate config firmware file
  Input: atmel_mxt_ts - refactor config update code to add context struct
  Input: atmel_mxt_ts - config CRC may start at T71
  Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
  Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
  ...
2018-08-18 16:48:07 -07:00

158 lines
3.9 KiB
C

/*
* Copyright (c) 1996-2001 Vojtech Pavlik
*/
/*
* This is just a very simple driver that can dump the data
* out of the joystick port into the syslog ...
*/
/*
* 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/module.h>
#include <linux/gameport.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#define DRIVER_DESC "Gameport data dumper module"
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define BUF_SIZE 256
struct joydump {
unsigned int time;
unsigned char data;
};
static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
{
struct joydump *buf; /* all entries */
struct joydump *dump, *prev; /* one entry each */
int axes[4], buttons;
int i, j, t, timeout;
unsigned long flags;
unsigned char u;
printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
printk(KERN_INFO "joydump: | Raw mode not available - trying cooked. |\n");
if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
printk(KERN_INFO "joydump: | Cooked not available either. Failing. |\n");
printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
return -ENODEV;
}
gameport_cooked_read(gameport, axes, &buttons);
for (i = 0; i < 4; i++)
printk(KERN_INFO "joydump: | Axis %d: %4d. |\n", i, axes[i]);
printk(KERN_INFO "joydump: | Buttons %02x. |\n", buttons);
printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
}
timeout = gameport_time(gameport, 10000); /* 10 ms */
buf = kmalloc_array(BUF_SIZE, sizeof(struct joydump), GFP_KERNEL);
if (!buf) {
printk(KERN_INFO "joydump: no memory for testing\n");
goto jd_end;
}
dump = buf;
t = 0;
i = 1;
local_irq_save(flags);
u = gameport_read(gameport);
dump->data = u;
dump->time = t;
dump++;
gameport_trigger(gameport);
while (i < BUF_SIZE && t < timeout) {
dump->data = gameport_read(gameport);
if (dump->data ^ u) {
u = dump->data;
dump->time = t;
i++;
dump++;
}
t++;
}
local_irq_restore(flags);
/*
* Dump data.
*/
t = i;
dump = buf;
prev = dump;
printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
for (j = 7; j >= 0; j--)
printk("%d", (dump->data >> j) & 1);
printk(" |\n");
dump++;
for (i = 1; i < t; i++, dump++, prev++) {
printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
i, dump->time - prev->time);
for (j = 7; j >= 0; j--)
printk("%d", (dump->data >> j) & 1);
printk(" |\n");
}
kfree(buf);
jd_end:
printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
return 0;
}
static void joydump_disconnect(struct gameport *gameport)
{
gameport_close(gameport);
}
static struct gameport_driver joydump_drv = {
.driver = {
.name = "joydump",
},
.description = DRIVER_DESC,
.connect = joydump_connect,
.disconnect = joydump_disconnect,
};
module_gameport_driver(joydump_drv);