diff options
Diffstat (limited to 'drivers/char/joystick/joy-db9.c')
| -rw-r--r-- | drivers/char/joystick/joy-db9.c | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/drivers/char/joystick/joy-db9.c b/drivers/char/joystick/joy-db9.c new file mode 100644 index 000000000..82a5c6a0f --- /dev/null +++ b/drivers/char/joystick/joy-db9.c @@ -0,0 +1,406 @@ +/* + * joy-db9.c Version 0.5V + * + * Copyright (c) 1998 Andree Borrmann + */ + +/* + * This is a module for the Linux joystick driver, supporting + * console (Atari, Amstrad, Commodore, Amiga, Sega) joysticks + * and gamepads connected to the parallel port. + */ + +/* + * 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 <asm/io.h> +#include <asm/system.h> +#include <linux/errno.h> +#include <linux/ioport.h> +#include <linux/joystick.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/delay.h> + +MODULE_AUTHOR("Andree Borrmann <A.Borrmann@tu-bs.de>"); +MODULE_PARM(js_db9, "2i"); +MODULE_PARM(js_db9_2, "2i"); +MODULE_PARM(js_db9_3, "2i"); + +#define JS_MULTI_STICK 0x01 +#define JS_MULTI2_STICK 0x02 +#define JS_GENESIS_PAD 0x03 +#define JS_GENESIS5_PAD 0x05 +#define JS_GENESIS6_PAD 0x06 +#define JS_SATURN_PAD 0x07 +#define JS_MULTI_0802 0x08 +#define JS_MAX_PAD 0x09 + +#define JS_DB9_UP 0x01 +#define JS_DB9_DOWN 0x02 +#define JS_DB9_LEFT 0x04 +#define JS_DB9_RIGHT 0x08 +#define JS_DB9_FIRE1 0x10 +#define JS_DB9_FIRE2 0x20 +#define JS_DB9_FIRE3 0x40 +#define JS_DB9_FIRE4 0x80 + +#define JS_DB9_NORMAL 0x22 +#define JS_DB9_NOSELECT 0x20 + +#define JS_DB9_SATURN0 0x20 +#define JS_DB9_SATURN1 0x22 +#define JS_DB9_SATURN2 0x24 +#define JS_DB9_SATURN3 0x26 + +#define JS_GENESIS6_DELAY 14 + +static struct js_port* js_db9_port = NULL; + +static int js_db9[] __initdata = { -1, 0 }; +static int js_db9_2[] __initdata = { -1, 0 }; +static int js_db9_3[] __initdata = { -1, 0 }; + +struct js_db9_info { +#ifdef USE_PARPORT + struct pardevice *port; /* parport device */ +#else + int port; /* hw port */ +#endif + int mode; /* pad mode */ +}; + +/* + * js_db9_read() reads and analyzes db9 joystick data. + */ + +static int js_db9_read(void *xinfo, int **axes, int **buttons) +{ + struct js_db9_info *info = xinfo; + int data; + + switch(info->mode) + { + case JS_MULTI_0802: + + data = JS_PAR_STATUS(info->port) >> 3; + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?1:0); + + break; + + case JS_MULTI_STICK: + + data = JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?0:1); + + break; + + case JS_MULTI2_STICK: + + data=JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?0:1) | (data&JS_DB9_FIRE2?0:2); + + break; + + case JS_GENESIS_PAD: + + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); + data = JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?0:2) | (data&JS_DB9_FIRE2?0:4); + + JS_PAR_CTRL_OUT(JS_DB9_NORMAL,info->port); + data=JS_PAR_DATA_IN(info->port); + + buttons[0][0] |= (data&JS_DB9_FIRE1?0:1) | (data&JS_DB9_FIRE2?0:8); + + break; + + case JS_GENESIS5_PAD: + + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT,info->port); + data=JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?0:0x02) | (data&JS_DB9_FIRE2?0:0x04); + + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + data=JS_PAR_DATA_IN(info->port); + + buttons[0][0] |= (data&JS_DB9_FIRE1?0:0x01) | (data&JS_DB9_FIRE2?0:0x08) | + (data&JS_DB9_LEFT ?0:0x10) | (data&JS_DB9_RIGHT?0:0x20); + break; + + case JS_GENESIS6_PAD: + + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT,info->port); /* 1 */ + udelay(JS_GENESIS6_DELAY); + data=JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + buttons[0][0] = (data&JS_DB9_FIRE1?0:0x02) | (data&JS_DB9_FIRE2?0:0x04); + + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + udelay(JS_GENESIS6_DELAY); + data=JS_PAR_DATA_IN(info->port); + + buttons[0][0] |= (data&JS_DB9_FIRE1?0:0x01) | (data&JS_DB9_FIRE2?0:0x08); + + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 2 */ + udelay(JS_GENESIS6_DELAY); + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + udelay(JS_GENESIS6_DELAY); + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 3 */ + udelay(JS_GENESIS6_DELAY); + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + data=JS_PAR_DATA_IN(info->port); + + buttons[0][0] |= (data&JS_DB9_LEFT?0:0x10) | (data&JS_DB9_DOWN?0:0x20) | (data&JS_DB9_UP?0:0x40); + + udelay(JS_GENESIS6_DELAY); + JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 4 */ + udelay(JS_GENESIS6_DELAY); + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + + break; + + case JS_SATURN_PAD: + + JS_PAR_CTRL_OUT(JS_DB9_SATURN0, info->port); + data = JS_PAR_DATA_IN(info->port); + + buttons[0][0] = (data&JS_DB9_UP ?0:0x20) | (data&JS_DB9_DOWN ?0:0x10) | + (data&JS_DB9_LEFT?0:0x08) | (data&JS_DB9_RIGHT?0:0x40); + + JS_PAR_CTRL_OUT(JS_DB9_SATURN2, info->port); + data = JS_PAR_DATA_IN(info->port); + + axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1); + axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1); + + JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port); + data = JS_PAR_DATA_IN(info->port); + + buttons[0][0] |= (data&JS_DB9_UP ?0:0x02) | (data&JS_DB9_DOWN ?0:0x04) | + (data&JS_DB9_LEFT?0:0x01) | (data&JS_DB9_RIGHT?0:0x80); + + + break; + + default: + return -1; + } + + return 0; +} + +/* + * open callback: claim parport. + */ + +int js_db9_open(struct js_dev *dev) +{ + struct js_db9_info *info = dev->port->info; + + if (!MOD_IN_USE) { +#ifdef USE_PARPORT + if (parport_claim(info->port)) return -EBUSY; +#endif + + JS_PAR_ECTRL_OUT(0x35,info->port); /* enable PS/2 mode: */ + JS_PAR_CTRL_OUT(JS_DB9_NORMAL,info->port); /* reverse direction, enable Select signal */ + } + + MOD_INC_USE_COUNT; + return 0; +} + +/* + * close callback: release parport + */ + +int js_db9_close(struct js_dev *dev) +{ + struct js_db9_info *info = dev->port->info; + + MOD_DEC_USE_COUNT; + + if (!MOD_IN_USE) { + + JS_PAR_CTRL_OUT(0x00,info->port); /* normal direction */ + JS_PAR_ECTRL_OUT(0x15,info->port); /* enable normal mode */ + +#ifdef USE_PARPORT + parport_release(info->port); +#endif + } + return 0; +} + +#ifdef MODULE +void cleanup_module(void) +{ + struct js_db9_info *info; + + while (js_db9_port != NULL) { + js_unregister_device(js_db9_port->devs[0]); + info = js_db9_port->info; +#ifdef USE_PARPORT + parport_unregister_device(info->port); +#else + release_region(info->port, 3); + release_region(info->port+0x402, 1); +#endif + js_db9_port = js_unregister_port(js_db9_port); + } + +} +#endif + +/* + * js_db9_init_corr() initializes correction values of + * db9 gamepads. + */ + +static void __init js_db9_init_corr(struct js_corr **corr) +{ + int i; + + for (i = 0; i < 2; i++) { + corr[0][i].type = JS_CORR_BROKEN; + corr[0][i].prec = 0; + corr[0][i].coef[0] = 0; + corr[0][i].coef[1] = 0; + corr[0][i].coef[2] = (1 << 29); + corr[0][i].coef[3] = (1 << 29); + } +} + +/* + * js_db9_probe() probes for db9 gamepads. + */ + +static struct js_port __init *js_db9_probe(int *config, struct js_port *port) +{ + struct js_db9_info info; + char buttons[JS_MAX_PAD] = {0,1,2,4,0,6,7,8,1}; + char *name[JS_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"}; + + if (config[0] < 0) return port; + if (config[1] < 0 || config[1] >= JS_MAX_PAD || !name[config[1]]) return port; + +#ifdef USE_PARPORT + { + struct parport *pp; + + if (config[0] > 0x10) + for (pp=parport_enumerate(); pp != NULL && (pp->base!=config[0]); pp=pp->next); + else + for (pp=parport_enumerate(); pp != NULL && (config[0]>0); pp=pp->next) config[0]--; + + if (pp == NULL) { + printk(KERN_ERR "joy-db9: no such parport\n"); + return port; + } + + if (!(pp->modes & (PARPORT_MODE_PCPS2 | PARPORT_MODE_PCECPPS2))) { + printk(KERN_ERR "js-db9: specified parport is not bidirectional\n"); + return port; + } + + info.port = parport_register_device(pp, "joystick (db9)", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); + if (!info.port) + return port; + } +#else + info.port = config[0]; + if (check_region(info.port, 3) || check_region(info.port+0x402,1)) return port; + request_region(info.port, 3, "joystick (db9)"); + request_region(info.port+0x402, 1, "joystick (db9)"); +#endif + + info.mode = config[1]; + + port = js_register_port(port, &info, 1, sizeof(struct js_db9_info), js_db9_read); + +#ifdef USE_PARPORT + printk(KERN_INFO "js%d: %s on %s\n", + js_register_device(port, 0, 2, buttons[info.mode], name[info.mode], js_db9_open, js_db9_close), + name[info.mode], info.port->port->name); +#else + printk(KERN_INFO "js%d: %s at %#x\n", + js_register_device(port, 0, 2, buttons[info.mode], name[info.mode], js_db9_open, js_db9_close), + name[info.mode], info.port); +#endif + + js_db9_init_corr(port->corr); + + return port; +} + +#ifndef MODULE +void __init js_db9_setup(char *str, int *ints) +{ + int i; + + if (!strcmp(str,"js_db9")) + for (i = 0; i <= ints[0] && i < 2; i++) js_db9[i] = ints[i+1]; + if (!strcmp(str,"js_db9_2")) + for (i = 0; i <= ints[0] && i < 2; i++) js_db9_2[i] = ints[i+1]; + if (!strcmp(str,"js_db9_3")) + for (i = 0; i <= ints[0] && i < 2; i++) js_db9_3[i] = ints[i+1]; + +} +#endif + +#ifdef MODULE +int init_module(void) +#else +int __init js_db9_init(void) +#endif +{ + js_db9_port = js_db9_probe(js_db9, js_db9_port); + js_db9_port = js_db9_probe(js_db9_2, js_db9_port); + js_db9_port = js_db9_probe(js_db9_3, js_db9_port); + + if (js_db9_port) return 0; + +#ifdef MODULE + printk(KERN_WARNING "joy-db9: no joysticks specified\n"); +#endif + return -ENODEV; +} |