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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/input/joystick/db9.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/input/joystick/db9.c')
-rw-r--r-- | drivers/input/joystick/db9.c | 647 |
1 files changed, 647 insertions, 0 deletions
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c new file mode 100644 index 000000000000..cfdd3acf06a1 --- /dev/null +++ b/drivers/input/joystick/db9.c @@ -0,0 +1,647 @@ +/* + * $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 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/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/100 + +struct db9 { + struct input_dev dev[DB9_MAX_DEVICES]; + struct timer_list timer; + struct pardevice *pd; + int mode; + int used; + 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 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 *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) { + 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_max_pads[mode], 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, dev, tmp, max_pads); + } + return 0; +} + +static void db9_timer(unsigned long private) +{ + struct db9 *db9 = (void *) private; + struct parport *port = db9->pd->port; + struct input_dev *dev = db9->dev; + int data, i; + + switch(db9->mode) { + case DB9_MULTI_0802_2: + + data = parport_read_data(port) >> 3; + + input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); + input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); + input_report_key(dev + 1, 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, 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 = dev->private; + struct parport *port = db9->pd->port; + + if (!db9->used++) { + parport_claim(db9->pd); + parport_write_data(port, 0xff); + if (db9_reverse[db9->mode]) { + parport_data_reverse(port); + parport_write_control(port, DB9_NORMAL); + } + mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME); + } + + return 0; +} + +static void db9_close(struct input_dev *dev) +{ + struct db9 *db9 = dev->private; + struct parport *port = db9->pd->port; + + if (!--db9->used) { + del_timer(&db9->timer); + parport_write_control(port, 0x00); + parport_data_forward(port); + parport_release(db9->pd); + } +} + +static struct db9 __init *db9_probe(int *config, int nargs) +{ + struct db9 *db9; + struct parport *pp; + int i, j; + + if (config[0] < 0) + return NULL; + + if (nargs < 2) { + printk(KERN_ERR "db9.c: Device type must be specified.\n"); + return NULL; + } + + if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) { + printk(KERN_ERR "db9.c: bad config\n"); + return NULL; + } + + pp = parport_find_number(config[0]); + if (!pp) { + printk(KERN_ERR "db9.c: no such parport\n"); + return NULL; + } + + if (db9_bidirectional[config[1]]) { + if (!(pp->modes & PARPORT_MODE_TRISTATE)) { + printk(KERN_ERR "db9.c: specified parport is not bidirectional\n"); + parport_put_port(pp); + return NULL; + } + } + + if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL))) { + parport_put_port(pp); + return NULL; + } + memset(db9, 0, sizeof(struct db9)); + + db9->mode = config[1]; + init_timer(&db9->timer); + db9->timer.data = (long) db9; + db9->timer.function = db9_timer; + + db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); + parport_put_port(pp); + + if (!db9->pd) { + printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n"); + kfree(db9); + return NULL; + } + + for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) { + + sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i); + + db9->dev[i].private = db9; + db9->dev[i].open = db9_open; + db9->dev[i].close = db9_close; + + db9->dev[i].name = db9_name[db9->mode]; + db9->dev[i].phys = db9->phys[i]; + db9->dev[i].id.bustype = BUS_PARPORT; + db9->dev[i].id.vendor = 0x0002; + db9->dev[i].id.product = config[1]; + db9->dev[i].id.version = 0x0100; + + db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + for (j = 0; j < db9_buttons[db9->mode]; j++) + set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit); + for (j = 0; j < db9_num_axis[db9->mode]; j++) { + set_bit(db9_abs[j], db9->dev[i].absbit); + if (j < 2) { + db9->dev[i].absmin[db9_abs[j]] = -1; + db9->dev[i].absmax[db9_abs[j]] = 1; + } else { + db9->dev[i].absmin[db9_abs[j]] = 1; + db9->dev[i].absmax[db9_abs[j]] = 255; + db9->dev[i].absflat[db9_abs[j]] = 0; + } + } + input_register_device(db9->dev + i); + printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name); + } + + return db9; +} + +static int __init db9_init(void) +{ + db9_base[0] = db9_probe(db9, db9_nargs); + db9_base[1] = db9_probe(db9_2, db9_nargs_2); + db9_base[2] = db9_probe(db9_3, db9_nargs_3); + + if (db9_base[0] || db9_base[1] || db9_base[2]) + return 0; + + return -ENODEV; +} + +static void __exit db9_exit(void) +{ + int i, j; + + for (i = 0; i < 3; i++) + if (db9_base[i]) { + for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++) + input_unregister_device(db9_base[i]->dev + j); + parport_unregister_device(db9_base[i]->pd); + } +} + +module_init(db9_init); +module_exit(db9_exit); |