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711 lines
20 KiB
711 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 1999-2001 Vojtech Pavlik |
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* |
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* Based on the work of: |
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* Andree Borrmann Mats Sjövall |
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*/ |
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|
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/* |
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* Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux |
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*/ |
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/* |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/parport.h> |
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#include <linux/input.h> |
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#include <linux/mutex.h> |
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#include <linux/slab.h> |
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MODULE_AUTHOR("Vojtech Pavlik <[email protected]>"); |
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MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver"); |
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MODULE_LICENSE("GPL"); |
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struct db9_config { |
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int args[2]; |
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unsigned int nargs; |
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}; |
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#define DB9_MAX_PORTS 3 |
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static struct db9_config db9_cfg[DB9_MAX_PORTS]; |
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module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0); |
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MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)"); |
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module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0); |
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MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)"); |
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module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0); |
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MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)"); |
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#define DB9_ARG_PARPORT 0 |
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#define DB9_ARG_MODE 1 |
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#define DB9_MULTI_STICK 0x01 |
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#define DB9_MULTI2_STICK 0x02 |
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#define DB9_GENESIS_PAD 0x03 |
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#define DB9_GENESIS5_PAD 0x05 |
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#define DB9_GENESIS6_PAD 0x06 |
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#define DB9_SATURN_PAD 0x07 |
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#define DB9_MULTI_0802 0x08 |
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#define DB9_MULTI_0802_2 0x09 |
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#define DB9_CD32_PAD 0x0A |
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#define DB9_SATURN_DPP 0x0B |
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#define DB9_SATURN_DPP_2 0x0C |
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#define DB9_MAX_PAD 0x0D |
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#define DB9_UP 0x01 |
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#define DB9_DOWN 0x02 |
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#define DB9_LEFT 0x04 |
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#define DB9_RIGHT 0x08 |
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#define DB9_FIRE1 0x10 |
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#define DB9_FIRE2 0x20 |
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#define DB9_FIRE3 0x40 |
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#define DB9_FIRE4 0x80 |
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#define DB9_NORMAL 0x0a |
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#define DB9_NOSELECT 0x08 |
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#define DB9_GENESIS6_DELAY 14 |
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#define DB9_REFRESH_TIME HZ/100 |
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#define DB9_MAX_DEVICES 2 |
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struct db9_mode_data { |
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const char *name; |
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const short *buttons; |
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int n_buttons; |
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int n_pads; |
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int n_axis; |
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int bidirectional; |
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int reverse; |
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}; |
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struct db9 { |
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struct input_dev *dev[DB9_MAX_DEVICES]; |
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struct timer_list timer; |
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struct pardevice *pd; |
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int mode; |
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int used; |
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int parportno; |
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struct mutex mutex; |
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char phys[DB9_MAX_DEVICES][32]; |
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}; |
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static struct db9 *db9_base[3]; |
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static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB }; |
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static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE }; |
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static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START }; |
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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 }; |
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static const struct db9_mode_data db9_modes[] = { |
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{ NULL, NULL, 0, 0, 0, 0, 0 }, |
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{ "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, |
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{ "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 }, |
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{ "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 }, |
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{ NULL, NULL, 0, 0, 0, 0, 0 }, |
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{ "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 }, |
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{ "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 }, |
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{ "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 }, |
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{ "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, |
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{ "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 }, |
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{ "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 }, |
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{ "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 }, |
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{ "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 0, 0 }, |
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}; |
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/* |
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* Saturn controllers |
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*/ |
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#define DB9_SATURN_DELAY 300 |
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static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 }; |
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static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 }; |
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/* |
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* db9_saturn_write_sub() writes 2 bit data. |
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*/ |
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static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub) |
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{ |
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unsigned char c; |
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switch (type) { |
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case 1: /* DPP1 */ |
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c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data; |
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parport_write_data(port, c); |
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break; |
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case 2: /* DPP2 */ |
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c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03; |
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parport_write_data(port, c); |
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break; |
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case 0: /* DB9 */ |
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c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered; |
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parport_write_control(port, c); |
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break; |
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} |
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} |
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/* |
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* gc_saturn_read_sub() reads 4 bit data. |
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*/ |
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static unsigned char db9_saturn_read_sub(struct parport *port, int type) |
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{ |
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unsigned char data; |
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if (type) { |
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/* DPP */ |
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data = parport_read_status(port) ^ 0x80; |
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return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0) |
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| (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0); |
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} else { |
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/* DB9 */ |
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data = parport_read_data(port) & 0x0f; |
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return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0) |
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| (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0); |
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} |
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} |
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/* |
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* db9_saturn_read_analog() sends clock and reads 8 bit data. |
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*/ |
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static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered) |
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{ |
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unsigned char data; |
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db9_saturn_write_sub(port, type, 0, powered, 0); |
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udelay(DB9_SATURN_DELAY); |
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data = db9_saturn_read_sub(port, type) << 4; |
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db9_saturn_write_sub(port, type, 2, powered, 0); |
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udelay(DB9_SATURN_DELAY); |
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data |= db9_saturn_read_sub(port, type); |
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return data; |
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} |
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/* |
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* db9_saturn_read_packet() reads whole saturn packet at connector |
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* and returns device identifier code. |
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*/ |
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static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered) |
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{ |
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int i, j; |
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unsigned char tmp; |
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db9_saturn_write_sub(port, type, 3, powered, 0); |
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data[0] = db9_saturn_read_sub(port, type); |
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switch (data[0] & 0x0f) { |
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case 0xf: |
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/* 1111 no pad */ |
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return data[0] = 0xff; |
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case 0x4: case 0x4 | 0x8: |
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/* ?100 : digital controller */ |
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db9_saturn_write_sub(port, type, 0, powered, 1); |
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data[2] = db9_saturn_read_sub(port, type) << 4; |
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db9_saturn_write_sub(port, type, 2, powered, 1); |
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data[1] = db9_saturn_read_sub(port, type) << 4; |
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db9_saturn_write_sub(port, type, 1, powered, 1); |
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data[1] |= db9_saturn_read_sub(port, type); |
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db9_saturn_write_sub(port, type, 3, powered, 1); |
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/* data[2] |= db9_saturn_read_sub(port, type); */ |
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data[2] |= data[0]; |
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return data[0] = 0x02; |
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case 0x1: |
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/* 0001 : analog controller or multitap */ |
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db9_saturn_write_sub(port, type, 2, powered, 0); |
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udelay(DB9_SATURN_DELAY); |
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data[0] = db9_saturn_read_analog(port, type, powered); |
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if (data[0] != 0x41) { |
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/* read analog controller */ |
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for (i = 0; i < (data[0] & 0x0f); i++) |
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data[i + 1] = db9_saturn_read_analog(port, type, powered); |
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db9_saturn_write_sub(port, type, 3, powered, 0); |
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return data[0]; |
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} else { |
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/* read multitap */ |
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if (db9_saturn_read_analog(port, type, powered) != 0x60) |
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return data[0] = 0xff; |
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for (i = 0; i < 60; i += 10) { |
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data[i] = db9_saturn_read_analog(port, type, powered); |
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if (data[i] != 0xff) |
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/* read each pad */ |
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for (j = 0; j < (data[i] & 0x0f); j++) |
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data[i + j + 1] = db9_saturn_read_analog(port, type, powered); |
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} |
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db9_saturn_write_sub(port, type, 3, powered, 0); |
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return 0x41; |
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} |
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case 0x0: |
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/* 0000 : mouse */ |
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db9_saturn_write_sub(port, type, 2, powered, 0); |
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udelay(DB9_SATURN_DELAY); |
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tmp = db9_saturn_read_analog(port, type, powered); |
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if (tmp == 0xff) { |
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for (i = 0; i < 3; i++) |
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data[i + 1] = db9_saturn_read_analog(port, type, powered); |
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db9_saturn_write_sub(port, type, 3, powered, 0); |
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return data[0] = 0xe3; |
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} |
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fallthrough; |
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default: |
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return data[0]; |
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} |
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} |
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/* |
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* db9_saturn_report() analyzes packet and reports. |
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*/ |
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static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads) |
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{ |
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struct input_dev *dev; |
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int tmp, i, j; |
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tmp = (id == 0x41) ? 60 : 10; |
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for (j = 0; j < tmp && n < max_pads; j += 10, n++) { |
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dev = devs[n]; |
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switch (data[j]) { |
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case 0x16: /* multi controller (analog 4 axis) */ |
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input_report_abs(dev, db9_abs[5], data[j + 6]); |
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fallthrough; |
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case 0x15: /* mission stick (analog 3 axis) */ |
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input_report_abs(dev, db9_abs[3], data[j + 4]); |
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input_report_abs(dev, db9_abs[4], data[j + 5]); |
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fallthrough; |
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case 0x13: /* racing controller (analog 1 axis) */ |
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input_report_abs(dev, db9_abs[2], data[j + 3]); |
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fallthrough; |
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case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ |
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case 0x02: /* digital pad (digital 2 axis + buttons) */ |
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input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); |
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input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); |
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for (i = 0; i < 9; i++) |
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input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); |
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break; |
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case 0x19: /* mission stick x2 (analog 6 axis + buttons) */ |
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input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); |
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input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); |
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for (i = 0; i < 9; i++) |
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input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); |
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input_report_abs(dev, db9_abs[2], data[j + 3]); |
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input_report_abs(dev, db9_abs[3], data[j + 4]); |
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input_report_abs(dev, db9_abs[4], data[j + 5]); |
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/* |
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input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); |
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input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); |
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*/ |
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input_report_abs(dev, db9_abs[6], data[j + 7]); |
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input_report_abs(dev, db9_abs[7], data[j + 8]); |
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input_report_abs(dev, db9_abs[5], data[j + 9]); |
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break; |
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case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ |
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input_report_key(dev, BTN_A, data[j + 3] & 0x80); |
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input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f); |
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break; |
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case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ |
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input_report_key(dev, BTN_START, data[j + 1] & 0x08); |
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input_report_key(dev, BTN_A, data[j + 1] & 0x04); |
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input_report_key(dev, BTN_C, data[j + 1] & 0x02); |
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input_report_key(dev, BTN_B, data[j + 1] & 0x01); |
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input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80); |
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input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */ |
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break; |
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case 0xff: |
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default: /* no pad */ |
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input_report_abs(dev, db9_abs[0], 0); |
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input_report_abs(dev, db9_abs[1], 0); |
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for (i = 0; i < 9; i++) |
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input_report_key(dev, db9_cd32_btn[i], 0); |
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break; |
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} |
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} |
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return n; |
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} |
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static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[]) |
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{ |
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unsigned char id, data[60]; |
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int type, n, max_pads; |
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int tmp, i; |
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switch (mode) { |
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case DB9_SATURN_PAD: |
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type = 0; |
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n = 1; |
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break; |
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case DB9_SATURN_DPP: |
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type = 1; |
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n = 1; |
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break; |
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case DB9_SATURN_DPP_2: |
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type = 1; |
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n = 2; |
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break; |
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default: |
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return -1; |
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} |
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max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES); |
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for (tmp = 0, i = 0; i < n; i++) { |
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id = db9_saturn_read_packet(port, data, type + i, 1); |
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tmp = db9_saturn_report(id, data, devs, tmp, max_pads); |
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} |
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return 0; |
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} |
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static void db9_timer(struct timer_list *t) |
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{ |
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struct db9 *db9 = from_timer(db9, t, timer); |
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struct parport *port = db9->pd->port; |
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struct input_dev *dev = db9->dev[0]; |
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struct input_dev *dev2 = db9->dev[1]; |
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int data, i; |
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switch (db9->mode) { |
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case DB9_MULTI_0802_2: |
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data = parport_read_data(port) >> 3; |
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input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1); |
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fallthrough; |
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case DB9_MULTI_0802: |
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data = parport_read_status(port) >> 3; |
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input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1); |
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break; |
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case DB9_MULTI_STICK: |
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data = parport_read_data(port); |
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input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1); |
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break; |
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case DB9_MULTI2_STICK: |
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data = parport_read_data(port); |
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input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1); |
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input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2); |
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break; |
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case DB9_GENESIS_PAD: |
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parport_write_control(port, DB9_NOSELECT); |
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data = parport_read_data(port); |
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input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev, BTN_B, ~data & DB9_FIRE1); |
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input_report_key(dev, BTN_C, ~data & DB9_FIRE2); |
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parport_write_control(port, DB9_NORMAL); |
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data = parport_read_data(port); |
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input_report_key(dev, BTN_A, ~data & DB9_FIRE1); |
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input_report_key(dev, BTN_START, ~data & DB9_FIRE2); |
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break; |
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case DB9_GENESIS5_PAD: |
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|
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parport_write_control(port, DB9_NOSELECT); |
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data = parport_read_data(port); |
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input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
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input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
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input_report_key(dev, BTN_B, ~data & DB9_FIRE1); |
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input_report_key(dev, BTN_C, ~data & DB9_FIRE2); |
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parport_write_control(port, DB9_NORMAL); |
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data = parport_read_data(port); |
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input_report_key(dev, BTN_A, ~data & DB9_FIRE1); |
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input_report_key(dev, BTN_X, ~data & DB9_FIRE2); |
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input_report_key(dev, BTN_Y, ~data & DB9_LEFT); |
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input_report_key(dev, BTN_START, ~data & DB9_RIGHT); |
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break; |
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|
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case DB9_GENESIS6_PAD: |
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|
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parport_write_control(port, DB9_NOSELECT); /* 1 */ |
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udelay(DB9_GENESIS6_DELAY); |
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data = parport_read_data(port); |
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|
|
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, db9->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 = input_get_drvdata(dev); |
|
struct parport *port = db9->pd->port; |
|
int err; |
|
|
|
err = mutex_lock_interruptible(&db9->mutex); |
|
if (err) |
|
return err; |
|
|
|
if (!db9->used++) { |
|
parport_claim(db9->pd); |
|
parport_write_data(port, 0xff); |
|
if (db9_modes[db9->mode].reverse) { |
|
parport_data_reverse(port); |
|
parport_write_control(port, DB9_NORMAL); |
|
} |
|
mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME); |
|
} |
|
|
|
mutex_unlock(&db9->mutex); |
|
return 0; |
|
} |
|
|
|
static void db9_close(struct input_dev *dev) |
|
{ |
|
struct db9 *db9 = input_get_drvdata(dev); |
|
struct parport *port = db9->pd->port; |
|
|
|
mutex_lock(&db9->mutex); |
|
if (!--db9->used) { |
|
del_timer_sync(&db9->timer); |
|
parport_write_control(port, 0x00); |
|
parport_data_forward(port); |
|
parport_release(db9->pd); |
|
} |
|
mutex_unlock(&db9->mutex); |
|
} |
|
|
|
static void db9_attach(struct parport *pp) |
|
{ |
|
struct db9 *db9; |
|
const struct db9_mode_data *db9_mode; |
|
struct pardevice *pd; |
|
struct input_dev *input_dev; |
|
int i, j, port_idx; |
|
int mode; |
|
struct pardev_cb db9_parport_cb; |
|
|
|
for (port_idx = 0; port_idx < DB9_MAX_PORTS; port_idx++) { |
|
if (db9_cfg[port_idx].nargs == 0 || |
|
db9_cfg[port_idx].args[DB9_ARG_PARPORT] < 0) |
|
continue; |
|
|
|
if (db9_cfg[port_idx].args[DB9_ARG_PARPORT] == pp->number) |
|
break; |
|
} |
|
|
|
if (port_idx == DB9_MAX_PORTS) { |
|
pr_debug("Not using parport%d.\n", pp->number); |
|
return; |
|
} |
|
|
|
mode = db9_cfg[port_idx].args[DB9_ARG_MODE]; |
|
|
|
if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) { |
|
printk(KERN_ERR "db9.c: Bad device type %d\n", mode); |
|
return; |
|
} |
|
|
|
db9_mode = &db9_modes[mode]; |
|
|
|
if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) { |
|
printk(KERN_ERR "db9.c: specified parport is not bidirectional\n"); |
|
return; |
|
} |
|
|
|
memset(&db9_parport_cb, 0, sizeof(db9_parport_cb)); |
|
db9_parport_cb.flags = PARPORT_FLAG_EXCL; |
|
|
|
pd = parport_register_dev_model(pp, "db9", &db9_parport_cb, port_idx); |
|
if (!pd) { |
|
printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n"); |
|
return; |
|
} |
|
|
|
db9 = kzalloc(sizeof(struct db9), GFP_KERNEL); |
|
if (!db9) |
|
goto err_unreg_pardev; |
|
|
|
mutex_init(&db9->mutex); |
|
db9->pd = pd; |
|
db9->mode = mode; |
|
db9->parportno = pp->number; |
|
timer_setup(&db9->timer, db9_timer, 0); |
|
|
|
for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) { |
|
|
|
db9->dev[i] = input_dev = input_allocate_device(); |
|
if (!input_dev) { |
|
printk(KERN_ERR "db9.c: Not enough memory for input device\n"); |
|
goto err_unreg_devs; |
|
} |
|
|
|
snprintf(db9->phys[i], sizeof(db9->phys[i]), |
|
"%s/input%d", db9->pd->port->name, i); |
|
|
|
input_dev->name = db9_mode->name; |
|
input_dev->phys = db9->phys[i]; |
|
input_dev->id.bustype = BUS_PARPORT; |
|
input_dev->id.vendor = 0x0002; |
|
input_dev->id.product = mode; |
|
input_dev->id.version = 0x0100; |
|
|
|
input_set_drvdata(input_dev, db9); |
|
|
|
input_dev->open = db9_open; |
|
input_dev->close = db9_close; |
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
|
for (j = 0; j < db9_mode->n_buttons; j++) |
|
set_bit(db9_mode->buttons[j], input_dev->keybit); |
|
for (j = 0; j < db9_mode->n_axis; j++) { |
|
if (j < 2) |
|
input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0); |
|
else |
|
input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0); |
|
} |
|
|
|
if (input_register_device(input_dev)) |
|
goto err_free_dev; |
|
} |
|
|
|
db9_base[port_idx] = db9; |
|
return; |
|
|
|
err_free_dev: |
|
input_free_device(db9->dev[i]); |
|
err_unreg_devs: |
|
while (--i >= 0) |
|
input_unregister_device(db9->dev[i]); |
|
kfree(db9); |
|
err_unreg_pardev: |
|
parport_unregister_device(pd); |
|
} |
|
|
|
static void db9_detach(struct parport *port) |
|
{ |
|
int i; |
|
struct db9 *db9; |
|
|
|
for (i = 0; i < DB9_MAX_PORTS; i++) { |
|
if (db9_base[i] && db9_base[i]->parportno == port->number) |
|
break; |
|
} |
|
|
|
if (i == DB9_MAX_PORTS) |
|
return; |
|
|
|
db9 = db9_base[i]; |
|
db9_base[i] = NULL; |
|
|
|
for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++) |
|
input_unregister_device(db9->dev[i]); |
|
parport_unregister_device(db9->pd); |
|
kfree(db9); |
|
} |
|
|
|
static struct parport_driver db9_parport_driver = { |
|
.name = "db9", |
|
.match_port = db9_attach, |
|
.detach = db9_detach, |
|
.devmodel = true, |
|
}; |
|
|
|
static int __init db9_init(void) |
|
{ |
|
int i; |
|
int have_dev = 0; |
|
|
|
for (i = 0; i < DB9_MAX_PORTS; i++) { |
|
if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0) |
|
continue; |
|
|
|
if (db9_cfg[i].nargs < 2) { |
|
printk(KERN_ERR "db9.c: Device type must be specified.\n"); |
|
return -EINVAL; |
|
} |
|
|
|
have_dev = 1; |
|
} |
|
|
|
if (!have_dev) |
|
return -ENODEV; |
|
|
|
return parport_register_driver(&db9_parport_driver); |
|
} |
|
|
|
static void __exit db9_exit(void) |
|
{ |
|
parport_unregister_driver(&db9_parport_driver); |
|
} |
|
|
|
module_init(db9_init); |
|
module_exit(db9_exit);
|
|
|