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marcus.erl |
/*
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* $Id: analog.c,v 1.68 2002/01/22 20:18:32 vojtech Exp $
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*
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* Copyright (c) 1996-2001 Vojtech Pavlik
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*/
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/*
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* Analog joystick and gamepad driver for Linux
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/delay.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <linux/bitops.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/gameport.h>
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#include <linux/jiffies.h>
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#include <asm/timex.h>
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#define DRIVER_DESC "Analog joystick and gamepad driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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48 |
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/*
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* Option parsing.
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*/
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#define ANALOG_PORTS 16
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static char *js[ANALOG_PORTS];
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static unsigned int js_nargs;
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static int analog_options[ANALOG_PORTS];
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module_param_array_named(map, js, charp, &js_nargs, 0);
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MODULE_PARM_DESC(map, "Describes analog joysticks type/capabilities");
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/*
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* Times, feature definitions.
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*/
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#define ANALOG_RUDDER 0x00004
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#define ANALOG_THROTTLE 0x00008
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#define ANALOG_AXES_STD 0x0000f
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#define ANALOG_BTNS_STD 0x000f0
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#define ANALOG_BTNS_CHF 0x00100
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#define ANALOG_HAT1_CHF 0x00200
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#define ANALOG_HAT2_CHF 0x00400
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#define ANALOG_HAT_FCS 0x00800
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#define ANALOG_HATS_ALL 0x00e00
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#define ANALOG_BTN_TL 0x01000
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#define ANALOG_BTN_TR 0x02000
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#define ANALOG_BTN_TL2 0x04000
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#define ANALOG_BTN_TR2 0x08000
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#define ANALOG_BTNS_TLR 0x03000
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#define ANALOG_BTNS_TLR2 0x0c000
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#define ANALOG_BTNS_GAMEPAD 0x0f000
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#define ANALOG_HBTN_CHF 0x10000
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#define ANALOG_ANY_CHF 0x10700
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#define ANALOG_SAITEK 0x20000
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#define ANALOG_EXTENSIONS 0x7ff00
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#define ANALOG_GAMEPAD 0x80000
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#define ANALOG_MAX_TIME 3 /* 3 ms */
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#define ANALOG_LOOP_TIME 2000 /* 2 * loop */
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#define ANALOG_SAITEK_DELAY 200 /* 200 us */
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#define ANALOG_SAITEK_TIME 2000 /* 2000 us */
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#define ANALOG_AXIS_TIME 2 /* 2 * refresh */
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#define ANALOG_INIT_RETRIES 8 /* 8 times */
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#define ANALOG_FUZZ_BITS 2 /* 2 bit more */
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#define ANALOG_FUZZ_MAGIC 36 /* 36 u*ms/loop */
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#define ANALOG_MAX_NAME_LENGTH 128
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#define ANALOG_MAX_PHYS_LENGTH 32
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static short analog_axes[] = { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE };
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static short analog_hats[] = { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
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static short analog_pads[] = { BTN_Y, BTN_Z, BTN_TL, BTN_TR };
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static short analog_exts[] = { ANALOG_HAT1_CHF, ANALOG_HAT2_CHF, ANALOG_HAT_FCS };
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static short analog_pad_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_TL2, BTN_TR2, BTN_SELECT, BTN_START, BTN_MODE, BTN_BASE };
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static short analog_joy_btn[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2,
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BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_BASE6 };
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static unsigned char analog_chf[] = { 0xf, 0x0, 0x1, 0x9, 0x2, 0x4, 0xc, 0x8, 0x3, 0x5, 0xb, 0x7, 0xd, 0xe, 0xa, 0x6 };
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struct analog {
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struct input_dev *dev;
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int mask;
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short *buttons;
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char name[ANALOG_MAX_NAME_LENGTH];
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char phys[ANALOG_MAX_PHYS_LENGTH];
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};
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struct analog_port {
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struct gameport *gameport;
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struct analog analog[2];
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unsigned char mask;
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char saitek;
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char cooked;
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int bads;
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int reads;
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int speed;
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int loop;
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int fuzz;
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int axes[4];
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int buttons;
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int initial[4];
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int axtime;
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};
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/*
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* Time macros.
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*/
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#ifdef __i386__
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#include <asm/i8253.h>
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#define GET_TIME(x) do { if (cpu_has_tsc) rdtscl(x); else x = get_time_pit(); } while (0)
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#define DELTA(x,y) (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? CLOCK_TICK_RATE / HZ : 0)))
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#define TIME_NAME (cpu_has_tsc?"TSC":"PIT")
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static unsigned int get_time_pit(void)
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{
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unsigned long flags;
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unsigned int count;
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spin_lock_irqsave(&i8253_lock, flags);
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outb_p(0x00, 0x43);
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count = inb_p(0x40);
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count |= inb_p(0x40) << 8;
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spin_unlock_irqrestore(&i8253_lock, flags);
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return count;
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}
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#elif defined(__x86_64__)
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#define GET_TIME(x) rdtscl(x)
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#define DELTA(x,y) ((y)-(x))
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#define TIME_NAME "TSC"
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#elif defined(__alpha__)
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#define GET_TIME(x) do { x = get_cycles(); } while (0)
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#define DELTA(x,y) ((y)-(x))
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#define TIME_NAME "PCC"
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#else
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#define FAKE_TIME
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static unsigned long analog_faketime = 0;
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#define GET_TIME(x) do { x = analog_faketime++; } while(0)
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#define DELTA(x,y) ((y)-(x))
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#define TIME_NAME "Unreliable"
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#warning Precise timer not defined for this architecture.
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#endif
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/*
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* analog_decode() decodes analog joystick data and reports input events.
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*/
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static void analog_decode(struct analog *analog, int *axes, int *initial, int buttons)
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{
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struct input_dev *dev = analog->dev;
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int i, j;
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if (analog->mask & ANALOG_HAT_FCS)
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for (i = 0; i < 4; i++)
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if (axes[3] < ((initial[3] * ((i << 1) + 1)) >> 3)) {
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buttons |= 1 << (i + 14);
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break;
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}
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for (i = j = 0; i < 6; i++)
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if (analog->mask & (0x10 << i))
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input_report_key(dev, analog->buttons[j++], (buttons >> i) & 1);
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if (analog->mask & ANALOG_HBTN_CHF)
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for (i = 0; i < 4; i++)
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input_report_key(dev, analog->buttons[j++], (buttons >> (i + 10)) & 1);
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if (analog->mask & ANALOG_BTN_TL)
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input_report_key(dev, analog_pads[0], axes[2] < (initial[2] >> 1));
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if (analog->mask & ANALOG_BTN_TR)
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input_report_key(dev, analog_pads[1], axes[3] < (initial[3] >> 1));
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if (analog->mask & ANALOG_BTN_TL2)
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input_report_key(dev, analog_pads[2], axes[2] > (initial[2] + (initial[2] >> 1)));
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if (analog->mask & ANALOG_BTN_TR2)
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input_report_key(dev, analog_pads[3], axes[3] > (initial[3] + (initial[3] >> 1)));
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for (i = j = 0; i < 4; i++)
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if (analog->mask & (1 << i))
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input_report_abs(dev, analog_axes[j++], axes[i]);
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for (i = j = 0; i < 3; i++)
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if (analog->mask & analog_exts[i]) {
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input_report_abs(dev, analog_hats[j++],
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((buttons >> ((i << 2) + 7)) & 1) - ((buttons >> ((i << 2) + 9)) & 1));
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input_report_abs(dev, analog_hats[j++],
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((buttons >> ((i << 2) + 8)) & 1) - ((buttons >> ((i << 2) + 6)) & 1));
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}
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input_sync(dev);
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}
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/*
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* analog_cooked_read() reads analog joystick data.
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*/
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228 |
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229 |
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static int analog_cooked_read(struct analog_port *port)
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{
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struct gameport *gameport = port->gameport;
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unsigned int time[4], start, loop, now, loopout, timeout;
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unsigned char data[4], this, last;
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unsigned long flags;
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int i, j;
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237 |
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loopout = (ANALOG_LOOP_TIME * port->loop) / 1000;
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timeout = ANALOG_MAX_TIME * port->speed;
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240 |
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local_irq_save(flags);
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gameport_trigger(gameport);
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GET_TIME(now);
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local_irq_restore(flags);
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245 |
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start = now;
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this = port->mask;
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i = 0;
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248 |
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249 |
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do {
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loop = now;
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last = this;
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252 |
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253 |
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local_irq_disable();
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this = gameport_read(gameport) & port->mask;
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GET_TIME(now);
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local_irq_restore(flags);
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257 |
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258 |
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if ((last ^ this) && (DELTA(loop, now) < loopout)) {
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259 |
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data[i] = last ^ this;
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260 |
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time[i] = now;
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i++;
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262 |
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}
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263 |
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264 |
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} while (this && (i < 4) && (DELTA(start, now) < timeout));
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265 |
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266 |
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this <<= 4;
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267 |
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268 |
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for (--i; i >= 0; i--) {
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269 |
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this |= data[i];
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270 |
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for (j = 0; j < 4; j++)
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271 |
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if (data[i] & (1 << j))
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272 |
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port->axes[j] = (DELTA(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;
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273 |
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}
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274 |
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275 |
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return -(this != port->mask);
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276 |
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}
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277 |
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278 |
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static int analog_button_read(struct analog_port *port, char saitek, char chf)
|
279 |
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{
|
280 |
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unsigned char u;
|
281 |
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int t = 1, i = 0;
|
282 |
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int strobe = gameport_time(port->gameport, ANALOG_SAITEK_TIME);
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283 |
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284 |
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u = gameport_read(port->gameport);
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285 |
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|
286 |
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if (!chf) {
|
287 |
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port->buttons = (~u >> 4) & 0xf;
|
288 |
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return 0;
|
289 |
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}
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290 |
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291 |
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port->buttons = 0;
|
292 |
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293 |
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while ((~u & 0xf0) && (i < 16) && t) {
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294 |
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port->buttons |= 1 << analog_chf[(~u >> 4) & 0xf];
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295 |
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if (!saitek) return 0;
|
296 |
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udelay(ANALOG_SAITEK_DELAY);
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297 |
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t = strobe;
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298 |
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gameport_trigger(port->gameport);
|
299 |
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while (((u = gameport_read(port->gameport)) & port->mask) && t) t--;
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300 |
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i++;
|
301 |
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}
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302 |
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303 |
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return -(!t || (i == 16));
|
304 |
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}
|
305 |
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|
306 |
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/*
|
307 |
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* analog_poll() repeatedly polls the Analog joysticks.
|
308 |
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*/
|
309 |
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|
310 |
|
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static void analog_poll(struct gameport *gameport)
|
311 |
|
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{
|
312 |
|
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struct analog_port *port = gameport_get_drvdata(gameport);
|
313 |
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int i;
|
314 |
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|
315 |
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char saitek = !!(port->analog[0].mask & ANALOG_SAITEK);
|
316 |
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char chf = !!(port->analog[0].mask & ANALOG_ANY_CHF);
|
317 |
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318 |
|
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if (port->cooked) {
|
319 |
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port->bads -= gameport_cooked_read(port->gameport, port->axes, &port->buttons);
|
320 |
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if (chf)
|
321 |
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port->buttons = port->buttons ? (1 << analog_chf[port->buttons]) : 0;
|
322 |
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port->reads++;
|
323 |
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} else {
|
324 |
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if (!port->axtime--) {
|
325 |
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port->bads -= analog_cooked_read(port);
|
326 |
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port->bads -= analog_button_read(port, saitek, chf);
|
327 |
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port->reads++;
|
328 |
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port->axtime = ANALOG_AXIS_TIME - 1;
|
329 |
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} else {
|
330 |
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if (!saitek)
|
331 |
|
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analog_button_read(port, saitek, chf);
|
332 |
|
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}
|
333 |
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}
|
334 |
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|
335 |
|
|
for (i = 0; i < 2; i++)
|
336 |
|
|
if (port->analog[i].mask)
|
337 |
|
|
analog_decode(port->analog + i, port->axes, port->initial, port->buttons);
|
338 |
|
|
}
|
339 |
|
|
|
340 |
|
|
/*
|
341 |
|
|
* analog_open() is a callback from the input open routine.
|
342 |
|
|
*/
|
343 |
|
|
|
344 |
|
|
static int analog_open(struct input_dev *dev)
|
345 |
|
|
{
|
346 |
|
|
struct analog_port *port = input_get_drvdata(dev);
|
347 |
|
|
|
348 |
|
|
gameport_start_polling(port->gameport);
|
349 |
|
|
return 0;
|
350 |
|
|
}
|
351 |
|
|
|
352 |
|
|
/*
|
353 |
|
|
* analog_close() is a callback from the input close routine.
|
354 |
|
|
*/
|
355 |
|
|
|
356 |
|
|
static void analog_close(struct input_dev *dev)
|
357 |
|
|
{
|
358 |
|
|
struct analog_port *port = input_get_drvdata(dev);
|
359 |
|
|
|
360 |
|
|
gameport_stop_polling(port->gameport);
|
361 |
|
|
}
|
362 |
|
|
|
363 |
|
|
/*
|
364 |
|
|
* analog_calibrate_timer() calibrates the timer and computes loop
|
365 |
|
|
* and timeout values for a joystick port.
|
366 |
|
|
*/
|
367 |
|
|
|
368 |
|
|
static void analog_calibrate_timer(struct analog_port *port)
|
369 |
|
|
{
|
370 |
|
|
struct gameport *gameport = port->gameport;
|
371 |
|
|
unsigned int i, t, tx, t1, t2, t3;
|
372 |
|
|
unsigned long flags;
|
373 |
|
|
|
374 |
|
|
local_irq_save(flags);
|
375 |
|
|
GET_TIME(t1);
|
376 |
|
|
#ifdef FAKE_TIME
|
377 |
|
|
analog_faketime += 830;
|
378 |
|
|
#endif
|
379 |
|
|
mdelay(1);
|
380 |
|
|
GET_TIME(t2);
|
381 |
|
|
GET_TIME(t3);
|
382 |
|
|
local_irq_restore(flags);
|
383 |
|
|
|
384 |
|
|
port->speed = DELTA(t1, t2) - DELTA(t2, t3);
|
385 |
|
|
|
386 |
|
|
tx = ~0;
|
387 |
|
|
|
388 |
|
|
for (i = 0; i < 50; i++) {
|
389 |
|
|
local_irq_save(flags);
|
390 |
|
|
GET_TIME(t1);
|
391 |
|
|
for (t = 0; t < 50; t++) { gameport_read(gameport); GET_TIME(t2); }
|
392 |
|
|
GET_TIME(t3);
|
393 |
|
|
local_irq_restore(flags);
|
394 |
|
|
udelay(i);
|
395 |
|
|
t = DELTA(t1, t2) - DELTA(t2, t3);
|
396 |
|
|
if (t < tx) tx = t;
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
port->loop = tx / 50;
|
400 |
|
|
}
|
401 |
|
|
|
402 |
|
|
/*
|
403 |
|
|
* analog_name() constructs a name for an analog joystick.
|
404 |
|
|
*/
|
405 |
|
|
|
406 |
|
|
static void analog_name(struct analog *analog)
|
407 |
|
|
{
|
408 |
|
|
snprintf(analog->name, sizeof(analog->name), "Analog %d-axis %d-button",
|
409 |
|
|
hweight8(analog->mask & ANALOG_AXES_STD),
|
410 |
|
|
hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 +
|
411 |
|
|
hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4);
|
412 |
|
|
|
413 |
|
|
if (analog->mask & ANALOG_HATS_ALL)
|
414 |
|
|
snprintf(analog->name, sizeof(analog->name), "%s %d-hat",
|
415 |
|
|
analog->name, hweight16(analog->mask & ANALOG_HATS_ALL));
|
416 |
|
|
|
417 |
|
|
if (analog->mask & ANALOG_HAT_FCS)
|
418 |
|
|
strlcat(analog->name, " FCS", sizeof(analog->name));
|
419 |
|
|
if (analog->mask & ANALOG_ANY_CHF)
|
420 |
|
|
strlcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF",
|
421 |
|
|
sizeof(analog->name));
|
422 |
|
|
|
423 |
|
|
strlcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick",
|
424 |
|
|
sizeof(analog->name));
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
/*
|
428 |
|
|
* analog_init_device()
|
429 |
|
|
*/
|
430 |
|
|
|
431 |
|
|
static int analog_init_device(struct analog_port *port, struct analog *analog, int index)
|
432 |
|
|
{
|
433 |
|
|
struct input_dev *input_dev;
|
434 |
|
|
int i, j, t, v, w, x, y, z;
|
435 |
|
|
int error;
|
436 |
|
|
|
437 |
|
|
analog_name(analog);
|
438 |
|
|
snprintf(analog->phys, sizeof(analog->phys),
|
439 |
|
|
"%s/input%d", port->gameport->phys, index);
|
440 |
|
|
analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn;
|
441 |
|
|
|
442 |
|
|
analog->dev = input_dev = input_allocate_device();
|
443 |
|
|
if (!input_dev)
|
444 |
|
|
return -ENOMEM;
|
445 |
|
|
|
446 |
|
|
input_dev->name = analog->name;
|
447 |
|
|
input_dev->phys = analog->phys;
|
448 |
|
|
input_dev->id.bustype = BUS_GAMEPORT;
|
449 |
|
|
input_dev->id.vendor = GAMEPORT_ID_VENDOR_ANALOG;
|
450 |
|
|
input_dev->id.product = analog->mask >> 4;
|
451 |
|
|
input_dev->id.version = 0x0100;
|
452 |
|
|
input_dev->dev.parent = &port->gameport->dev;
|
453 |
|
|
|
454 |
|
|
input_set_drvdata(input_dev, port);
|
455 |
|
|
|
456 |
|
|
input_dev->open = analog_open;
|
457 |
|
|
input_dev->close = analog_close;
|
458 |
|
|
|
459 |
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
|
460 |
|
|
|
461 |
|
|
for (i = j = 0; i < 4; i++)
|
462 |
|
|
if (analog->mask & (1 << i)) {
|
463 |
|
|
|
464 |
|
|
t = analog_axes[j];
|
465 |
|
|
x = port->axes[i];
|
466 |
|
|
y = (port->axes[0] + port->axes[1]) >> 1;
|
467 |
|
|
z = y - port->axes[i];
|
468 |
|
|
z = z > 0 ? z : -z;
|
469 |
|
|
v = (x >> 3);
|
470 |
|
|
w = (x >> 3);
|
471 |
|
|
|
472 |
|
|
if ((i == 2 || i == 3) && (j == 2 || j == 3) && (z > (y >> 3)))
|
473 |
|
|
x = y;
|
474 |
|
|
|
475 |
|
|
if (analog->mask & ANALOG_SAITEK) {
|
476 |
|
|
if (i == 2) x = port->axes[i];
|
477 |
|
|
v = x - (x >> 2);
|
478 |
|
|
w = (x >> 4);
|
479 |
|
|
}
|
480 |
|
|
|
481 |
|
|
input_set_abs_params(input_dev, t, v, (x << 1) - v, port->fuzz, w);
|
482 |
|
|
j++;
|
483 |
|
|
}
|
484 |
|
|
|
485 |
|
|
for (i = j = 0; i < 3; i++)
|
486 |
|
|
if (analog->mask & analog_exts[i])
|
487 |
|
|
for (x = 0; x < 2; x++) {
|
488 |
|
|
t = analog_hats[j++];
|
489 |
|
|
input_set_abs_params(input_dev, t, -1, 1, 0, 0);
|
490 |
|
|
}
|
491 |
|
|
|
492 |
|
|
for (i = j = 0; i < 4; i++)
|
493 |
|
|
if (analog->mask & (0x10 << i))
|
494 |
|
|
set_bit(analog->buttons[j++], input_dev->keybit);
|
495 |
|
|
|
496 |
|
|
if (analog->mask & ANALOG_BTNS_CHF)
|
497 |
|
|
for (i = 0; i < 2; i++)
|
498 |
|
|
set_bit(analog->buttons[j++], input_dev->keybit);
|
499 |
|
|
|
500 |
|
|
if (analog->mask & ANALOG_HBTN_CHF)
|
501 |
|
|
for (i = 0; i < 4; i++)
|
502 |
|
|
set_bit(analog->buttons[j++], input_dev->keybit);
|
503 |
|
|
|
504 |
|
|
for (i = 0; i < 4; i++)
|
505 |
|
|
if (analog->mask & (ANALOG_BTN_TL << i))
|
506 |
|
|
set_bit(analog_pads[i], input_dev->keybit);
|
507 |
|
|
|
508 |
|
|
analog_decode(analog, port->axes, port->initial, port->buttons);
|
509 |
|
|
|
510 |
|
|
error = input_register_device(analog->dev);
|
511 |
|
|
if (error) {
|
512 |
|
|
input_free_device(analog->dev);
|
513 |
|
|
return error;
|
514 |
|
|
}
|
515 |
|
|
|
516 |
|
|
return 0;
|
517 |
|
|
}
|
518 |
|
|
|
519 |
|
|
/*
|
520 |
|
|
* analog_init_devices() sets up device-specific values and registers the input devices.
|
521 |
|
|
*/
|
522 |
|
|
|
523 |
|
|
static int analog_init_masks(struct analog_port *port)
|
524 |
|
|
{
|
525 |
|
|
int i;
|
526 |
|
|
struct analog *analog = port->analog;
|
527 |
|
|
int max[4];
|
528 |
|
|
|
529 |
|
|
if (!port->mask)
|
530 |
|
|
return -1;
|
531 |
|
|
|
532 |
|
|
if ((port->mask & 3) != 3 && port->mask != 0xc) {
|
533 |
|
|
printk(KERN_WARNING "analog.c: Unknown joystick device found "
|
534 |
|
|
"(data=%#x, %s), probably not analog joystick.\n",
|
535 |
|
|
port->mask, port->gameport->phys);
|
536 |
|
|
return -1;
|
537 |
|
|
}
|
538 |
|
|
|
539 |
|
|
|
540 |
|
|
i = analog_options[0]; /* FIXME !!! - need to specify options for different ports */
|
541 |
|
|
|
542 |
|
|
analog[0].mask = i & 0xfffff;
|
543 |
|
|
|
544 |
|
|
analog[0].mask &= ~(ANALOG_AXES_STD | ANALOG_HAT_FCS | ANALOG_BTNS_GAMEPAD)
|
545 |
|
|
| port->mask | ((port->mask << 8) & ANALOG_HAT_FCS)
|
546 |
|
|
| ((port->mask << 10) & ANALOG_BTNS_TLR) | ((port->mask << 12) & ANALOG_BTNS_TLR2);
|
547 |
|
|
|
548 |
|
|
analog[0].mask &= ~(ANALOG_HAT2_CHF)
|
549 |
|
|
| ((analog[0].mask & ANALOG_HBTN_CHF) ? 0 : ANALOG_HAT2_CHF);
|
550 |
|
|
|
551 |
|
|
analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_BTN_TR | ANALOG_BTN_TR2)
|
552 |
|
|
| ((~analog[0].mask & ANALOG_HAT_FCS) >> 8)
|
553 |
|
|
| ((~analog[0].mask & ANALOG_HAT_FCS) << 2)
|
554 |
|
|
| ((~analog[0].mask & ANALOG_HAT_FCS) << 4);
|
555 |
|
|
|
556 |
|
|
analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_RUDDER)
|
557 |
|
|
| (((~analog[0].mask & ANALOG_BTNS_TLR ) >> 10)
|
558 |
|
|
& ((~analog[0].mask & ANALOG_BTNS_TLR2) >> 12));
|
559 |
|
|
|
560 |
|
|
analog[1].mask = ((i >> 20) & 0xff) | ((i >> 12) & 0xf0000);
|
561 |
|
|
|
562 |
|
|
analog[1].mask &= (analog[0].mask & ANALOG_EXTENSIONS) ? ANALOG_GAMEPAD
|
563 |
|
|
: (((ANALOG_BTNS_STD | port->mask) & ~analog[0].mask) | ANALOG_GAMEPAD);
|
564 |
|
|
|
565 |
|
|
if (port->cooked) {
|
566 |
|
|
|
567 |
|
|
for (i = 0; i < 4; i++) max[i] = port->axes[i] << 1;
|
568 |
|
|
|
569 |
|
|
if ((analog[0].mask & 0x7) == 0x7) max[2] = (max[0] + max[1]) >> 1;
|
570 |
|
|
if ((analog[0].mask & 0xb) == 0xb) max[3] = (max[0] + max[1]) >> 1;
|
571 |
|
|
if ((analog[0].mask & ANALOG_BTN_TL) && !(analog[0].mask & ANALOG_BTN_TL2)) max[2] >>= 1;
|
572 |
|
|
if ((analog[0].mask & ANALOG_BTN_TR) && !(analog[0].mask & ANALOG_BTN_TR2)) max[3] >>= 1;
|
573 |
|
|
if ((analog[0].mask & ANALOG_HAT_FCS)) max[3] >>= 1;
|
574 |
|
|
|
575 |
|
|
gameport_calibrate(port->gameport, port->axes, max);
|
576 |
|
|
}
|
577 |
|
|
|
578 |
|
|
for (i = 0; i < 4; i++)
|
579 |
|
|
port->initial[i] = port->axes[i];
|
580 |
|
|
|
581 |
|
|
return -!(analog[0].mask || analog[1].mask);
|
582 |
|
|
}
|
583 |
|
|
|
584 |
|
|
static int analog_init_port(struct gameport *gameport, struct gameport_driver *drv, struct analog_port *port)
|
585 |
|
|
{
|
586 |
|
|
int i, t, u, v;
|
587 |
|
|
|
588 |
|
|
port->gameport = gameport;
|
589 |
|
|
|
590 |
|
|
gameport_set_drvdata(gameport, port);
|
591 |
|
|
|
592 |
|
|
if (!gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
|
593 |
|
|
|
594 |
|
|
analog_calibrate_timer(port);
|
595 |
|
|
|
596 |
|
|
gameport_trigger(gameport);
|
597 |
|
|
t = gameport_read(gameport);
|
598 |
|
|
msleep(ANALOG_MAX_TIME);
|
599 |
|
|
port->mask = (gameport_read(gameport) ^ t) & t & 0xf;
|
600 |
|
|
port->fuzz = (port->speed * ANALOG_FUZZ_MAGIC) / port->loop / 1000 + ANALOG_FUZZ_BITS;
|
601 |
|
|
|
602 |
|
|
for (i = 0; i < ANALOG_INIT_RETRIES; i++) {
|
603 |
|
|
if (!analog_cooked_read(port))
|
604 |
|
|
break;
|
605 |
|
|
msleep(ANALOG_MAX_TIME);
|
606 |
|
|
}
|
607 |
|
|
|
608 |
|
|
u = v = 0;
|
609 |
|
|
|
610 |
|
|
msleep(ANALOG_MAX_TIME);
|
611 |
|
|
t = gameport_time(gameport, ANALOG_MAX_TIME * 1000);
|
612 |
|
|
gameport_trigger(gameport);
|
613 |
|
|
while ((gameport_read(port->gameport) & port->mask) && (u < t))
|
614 |
|
|
u++;
|
615 |
|
|
udelay(ANALOG_SAITEK_DELAY);
|
616 |
|
|
t = gameport_time(gameport, ANALOG_SAITEK_TIME);
|
617 |
|
|
gameport_trigger(gameport);
|
618 |
|
|
while ((gameport_read(port->gameport) & port->mask) && (v < t))
|
619 |
|
|
v++;
|
620 |
|
|
|
621 |
|
|
if (v < (u >> 1)) { /* FIXME - more than one port */
|
622 |
|
|
analog_options[0] |= /* FIXME - more than one port */
|
623 |
|
|
ANALOG_SAITEK | ANALOG_BTNS_CHF | ANALOG_HBTN_CHF | ANALOG_HAT1_CHF;
|
624 |
|
|
return 0;
|
625 |
|
|
}
|
626 |
|
|
|
627 |
|
|
gameport_close(gameport);
|
628 |
|
|
}
|
629 |
|
|
|
630 |
|
|
if (!gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
|
631 |
|
|
|
632 |
|
|
for (i = 0; i < ANALOG_INIT_RETRIES; i++)
|
633 |
|
|
if (!gameport_cooked_read(gameport, port->axes, &port->buttons))
|
634 |
|
|
break;
|
635 |
|
|
for (i = 0; i < 4; i++)
|
636 |
|
|
if (port->axes[i] != -1)
|
637 |
|
|
port->mask |= 1 << i;
|
638 |
|
|
|
639 |
|
|
port->fuzz = gameport->fuzz;
|
640 |
|
|
port->cooked = 1;
|
641 |
|
|
return 0;
|
642 |
|
|
}
|
643 |
|
|
|
644 |
|
|
return gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
|
645 |
|
|
}
|
646 |
|
|
|
647 |
|
|
static int analog_connect(struct gameport *gameport, struct gameport_driver *drv)
|
648 |
|
|
{
|
649 |
|
|
struct analog_port *port;
|
650 |
|
|
int i;
|
651 |
|
|
int err;
|
652 |
|
|
|
653 |
|
|
if (!(port = kzalloc(sizeof(struct analog_port), GFP_KERNEL)))
|
654 |
|
|
return - ENOMEM;
|
655 |
|
|
|
656 |
|
|
err = analog_init_port(gameport, drv, port);
|
657 |
|
|
if (err)
|
658 |
|
|
goto fail1;
|
659 |
|
|
|
660 |
|
|
err = analog_init_masks(port);
|
661 |
|
|
if (err)
|
662 |
|
|
goto fail2;
|
663 |
|
|
|
664 |
|
|
gameport_set_poll_handler(gameport, analog_poll);
|
665 |
|
|
gameport_set_poll_interval(gameport, 10);
|
666 |
|
|
|
667 |
|
|
for (i = 0; i < 2; i++)
|
668 |
|
|
if (port->analog[i].mask) {
|
669 |
|
|
err = analog_init_device(port, port->analog + i, i);
|
670 |
|
|
if (err)
|
671 |
|
|
goto fail3;
|
672 |
|
|
}
|
673 |
|
|
|
674 |
|
|
return 0;
|
675 |
|
|
|
676 |
|
|
fail3: while (--i >= 0)
|
677 |
|
|
if (port->analog[i].mask)
|
678 |
|
|
input_unregister_device(port->analog[i].dev);
|
679 |
|
|
fail2: gameport_close(gameport);
|
680 |
|
|
fail1: gameport_set_drvdata(gameport, NULL);
|
681 |
|
|
kfree(port);
|
682 |
|
|
return err;
|
683 |
|
|
}
|
684 |
|
|
|
685 |
|
|
static void analog_disconnect(struct gameport *gameport)
|
686 |
|
|
{
|
687 |
|
|
struct analog_port *port = gameport_get_drvdata(gameport);
|
688 |
|
|
int i;
|
689 |
|
|
|
690 |
|
|
for (i = 0; i < 2; i++)
|
691 |
|
|
if (port->analog[i].mask)
|
692 |
|
|
input_unregister_device(port->analog[i].dev);
|
693 |
|
|
gameport_close(gameport);
|
694 |
|
|
gameport_set_drvdata(gameport, NULL);
|
695 |
|
|
printk(KERN_INFO "analog.c: %d out of %d reads (%d%%) on %s failed\n",
|
696 |
|
|
port->bads, port->reads, port->reads ? (port->bads * 100 / port->reads) : 0,
|
697 |
|
|
port->gameport->phys);
|
698 |
|
|
kfree(port);
|
699 |
|
|
}
|
700 |
|
|
|
701 |
|
|
struct analog_types {
|
702 |
|
|
char *name;
|
703 |
|
|
int value;
|
704 |
|
|
};
|
705 |
|
|
|
706 |
|
|
static struct analog_types analog_types[] = {
|
707 |
|
|
{ "none", 0x00000000 },
|
708 |
|
|
{ "auto", 0x000000ff },
|
709 |
|
|
{ "2btn", 0x0000003f },
|
710 |
|
|
{ "y-joy", 0x0cc00033 },
|
711 |
|
|
{ "y-pad", 0x8cc80033 },
|
712 |
|
|
{ "fcs", 0x000008f7 },
|
713 |
|
|
{ "chf", 0x000002ff },
|
714 |
|
|
{ "fullchf", 0x000007ff },
|
715 |
|
|
{ "gamepad", 0x000830f3 },
|
716 |
|
|
{ "gamepad8", 0x0008f0f3 },
|
717 |
|
|
{ NULL, 0 }
|
718 |
|
|
};
|
719 |
|
|
|
720 |
|
|
static void analog_parse_options(void)
|
721 |
|
|
{
|
722 |
|
|
int i, j;
|
723 |
|
|
char *end;
|
724 |
|
|
|
725 |
|
|
for (i = 0; i < js_nargs; i++) {
|
726 |
|
|
|
727 |
|
|
for (j = 0; analog_types[j].name; j++)
|
728 |
|
|
if (!strcmp(analog_types[j].name, js[i])) {
|
729 |
|
|
analog_options[i] = analog_types[j].value;
|
730 |
|
|
break;
|
731 |
|
|
}
|
732 |
|
|
if (analog_types[j].name) continue;
|
733 |
|
|
|
734 |
|
|
analog_options[i] = simple_strtoul(js[i], &end, 0);
|
735 |
|
|
if (end != js[i]) continue;
|
736 |
|
|
|
737 |
|
|
analog_options[i] = 0xff;
|
738 |
|
|
if (!strlen(js[i])) continue;
|
739 |
|
|
|
740 |
|
|
printk(KERN_WARNING "analog.c: Bad config for port %d - \"%s\"\n", i, js[i]);
|
741 |
|
|
}
|
742 |
|
|
|
743 |
|
|
for (; i < ANALOG_PORTS; i++)
|
744 |
|
|
analog_options[i] = 0xff;
|
745 |
|
|
}
|
746 |
|
|
|
747 |
|
|
/*
|
748 |
|
|
* The gameport device structure.
|
749 |
|
|
*/
|
750 |
|
|
|
751 |
|
|
static struct gameport_driver analog_drv = {
|
752 |
|
|
.driver = {
|
753 |
|
|
.name = "analog",
|
754 |
|
|
},
|
755 |
|
|
.description = DRIVER_DESC,
|
756 |
|
|
.connect = analog_connect,
|
757 |
|
|
.disconnect = analog_disconnect,
|
758 |
|
|
};
|
759 |
|
|
|
760 |
|
|
static int __init analog_init(void)
|
761 |
|
|
{
|
762 |
|
|
analog_parse_options();
|
763 |
|
|
gameport_register_driver(&analog_drv);
|
764 |
|
|
|
765 |
|
|
return 0;
|
766 |
|
|
}
|
767 |
|
|
|
768 |
|
|
static void __exit analog_exit(void)
|
769 |
|
|
{
|
770 |
|
|
gameport_unregister_driver(&analog_drv);
|
771 |
|
|
}
|
772 |
|
|
|
773 |
|
|
module_init(analog_init);
|
774 |
|
|
module_exit(analog_exit);
|