/* * $Id: db9.c,v 1.13 2002/04/07 20:13:37 vojtech Exp $ * *  Copyright (c) 1999-2001 Vojtech Pavlik * *  Based on the work of: *	Andree Borrmann		Mats Sj鰒all *//* * 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/moduleparam.h>#include <linux/delay.h>#include <linux/init.h>#include <linux/parport.h>#include <linux/input.h>MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");MODULE_LICENSE("GPL");static int db9[] __initdata = { -1, 0 };static int db9_nargs __initdata = 0;module_param_array_named(dev, db9, int, &db9_nargs, 0);MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");static int db9_2[] __initdata = { -1, 0 };static int db9_nargs_2 __initdata = 0;module_param_array_named(dev2, db9_2, int, &db9_nargs_2, 0);MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");static int db9_3[] __initdata = { -1, 0 };static int db9_nargs_3 __initdata = 0;module_param_array_named(dev3, db9_3, int, &db9_nargs_3, 0);MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");__obsolete_setup("db9=");__obsolete_setup("db9_2=");__obsolete_setup("db9_3=");#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_MAX_DEVICES		2#define DB9_GENESIS6_DELAY	14#define DB9_REFRESH_TIME	HZ/100struct db9 {	struct input_dev dev[DB9_MAX_DEVICES];	struct timer_list timer;	struct pardevice *pd;	int mode;	int used;	struct semaphore sem;	char phys[2][32];};static struct db9 *db9_base[3];static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,					db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,					db9_cd32_btn, db9_cd32_btn };static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",				      NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",				     "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };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 int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };/* * Saturn controllers */#define DB9_SATURN_DELAY 300static 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 *dev, int n, int max_pads){	int tmp, i, j;	tmp = (id == 0x41) ? 60 : 10;	for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {		switch (data[j]) {		case 0x16: /* multi controller (analog 4 axis) */			input_report_abs(dev + n, db9_abs[5], data[j + 6]);		case 0x15: /* mission stick (analog 3 axis) */			input_report_abs(dev + n, db9_abs[3], data[j + 4]);			input_report_abs(dev + n, db9_abs[4], data[j + 5]);		case 0x13: /* racing controller (analog 1 axis) */			input_report_abs(dev + n, 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 + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));			for (i = 0; i < 9; i++)				input_report_key(dev + n, 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 + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));			for (i = 0; i < 9; i++)				input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);			input_report_abs(dev + n, db9_abs[2], data[j + 3]);			input_report_abs(dev + n, db9_abs[3], data[j + 4]);			input_report_abs(dev + n, db9_abs[4], data[j + 5]);			/*			input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));			input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));			*/			input_report_abs(dev + n, db9_abs[6], data[j + 7]);			input_report_abs(dev + n, db9_abs[7], data[j + 8]);			input_report_abs(dev + n, db9_abs[5], data[j + 9]);			break;		case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */			input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);			input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);			break;		case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */			input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);			input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);			input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);			input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);			input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);			input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */			break;		case 0xff:		default: /* no pad */			input_report_abs(dev + n, db9_abs[0], 0);			input_report_abs(dev + n, db9_abs[1], 0);			for (i = 0; i < 9; i++)				input_report_key(dev + n, db9_cd32_btn[i], 0);			break;		}	}	return n;}static int db9_saturn(int mode, struct parport *port, struct input_dev *dev){	unsigned char id, data[60];	int type, n, max_pads;	int tmp, i;	switch (mode) {