709 lines
20 KiB
C
709 lines
20 KiB
C
// 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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* Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
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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 <vojtech@ucw.cz>");
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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);
|
|
|
|
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, 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);
|