// SPDX-License-Identifier: GPL-2.0-or-later/* * 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 */ #include <linux/kernel.h>#include <linux/module.h>#include <linux/delay.h>#include <linux/init.h>#include <linux/parport.h>#include <linux/input.h>#include <linux/mutex.h>#include <linux/slab.h> MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");MODULE_LICENSE("GPL"); struct db9_config { int args[2]; unsigned int nargs;}; #define DB9_MAX_PORTS 3static struct db9_config db9_cfg[DB9_MAX_PORTS]; module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0);MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)"); #define DB9_ARG_PARPORT 0#define DB9_ARG_MODE 1 #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_GENESIS6_DELAY 14#define DB9_REFRESH_TIME HZ/100 #define DB9_MAX_DEVICES 2 struct db9_mode_data { const char *name; const short *buttons; int n_buttons; int n_pads; int n_axis; int bidirectional; int reverse;}; struct db9 { struct input_dev *dev[DB9_MAX_DEVICES]; struct timer_list timer; struct pardevice *pd; int mode; int used; int parportno; struct mutex mutex; char phys[DB9_MAX_DEVICES][32];}; static struct db9 *db9_base[3]; static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };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 struct db9_mode_data db9_modes[] = { { NULL, NULL, 0, 0, 0, 0, 0 }, { "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, { "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 }, { "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 }, { NULL, NULL, 0, 0, 0, 0, 0 }, { "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 }, { "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 }, { "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 }, { "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, { "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 }, { "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 }, { "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 }, { "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 0, 0 },}; /* * Saturn controllers */#define DB9_SATURN_DELAY 300static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 }; /* * db9_saturn_write_sub() writes 2 bit data. */static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub){ unsigned char c; switch (type) { case 1: /* DPP1 */ c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data; parport_write_data(port, c); break; case 2: /* DPP2 */ c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03; parport_write_data(port, c); break; case 0: /* DB9 */ c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered; parport_write_control(port, c); break; }} /* * gc_saturn_read_sub() reads 4 bit data. */static unsigned char db9_saturn_read_sub(struct parport *port, int type){ unsigned char data; if (type) { /* DPP */ data = parport_read_status(port) ^ 0x80; return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0) | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0); } else { /* DB9 */ data = parport_read_data(port) & 0x0f; return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0) | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0); }} /* * db9_saturn_read_analog() sends clock and reads 8 bit data. */static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered){ unsigned char data; db9_saturn_write_sub(port, type, 0, powered, 0); udelay(DB9_SATURN_DELAY); data = db9_saturn_read_sub(port, type) << 4; db9_saturn_write_sub(port, type, 2, powered, 0); udelay(DB9_SATURN_DELAY); data |= db9_saturn_read_sub(port, type); return data;} /* * db9_saturn_read_packet() reads whole saturn packet at connector * and returns device identifier code. */static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered){ int i, j; unsigned char tmp; db9_saturn_write_sub(port, type, 3, powered, 0); data[0] = db9_saturn_read_sub(port, type); switch (data[0] & 0x0f) { case 0xf: /* 1111 no pad */ return data[0] = 0xff; case 0x4: case 0x4 | 0x8: /* ?100 : digital controller */ db9_saturn_write_sub(port, type, 0, powered, 1); data[2] = db9_saturn_read_sub(port, type) << 4; db9_saturn_write_sub(port, type, 2, powered, 1); data[1] = db9_saturn_read_sub(port, type) << 4; db9_saturn_write_sub(port, type, 1, powered, 1); data[1] |= db9_saturn_read_sub(port, type); db9_saturn_write_sub(port, type, 3, powered, 1); /* data[2] |= db9_saturn_read_sub(port, type); */ data[2] |= data[0]; return data[0] = 0x02; case 0x1: /* 0001 : analog controller or multitap */ db9_saturn_write_sub(port, type, 2, powered, 0); udelay(DB9_SATURN_DELAY); data[0] = db9_saturn_read_analog(port, type, powered); if (data[0] != 0x41) { /* read analog controller */ for (i = 0; i < (data[0] & 0x0f); i++) data[i + 1] = db9_saturn_read_analog(port, type, powered); db9_saturn_write_sub(port, type, 3, powered, 0); return data[0]; } else { /* read multitap */ if (db9_saturn_read_analog(port, type, powered) != 0x60) return data[0] = 0xff; for (i = 0; i < 60; i += 10) { data[i] = db9_saturn_read_analog(port, type, powered); if (data[i] != 0xff) /* read each pad */ for (j = 0; j < (data[i] & 0x0f); j++) data[i + j + 1] = db9_saturn_read_analog(port, type, powered); } db9_saturn_write_sub(port, type, 3, powered, 0); return 0x41; } case 0x0: /* 0000 : mouse */ db9_saturn_write_sub(port, type, 2, powered, 0); udelay(DB9_SATURN_DELAY); tmp = db9_saturn_read_analog(port, type, powered); if (tmp == 0xff) { for (i = 0; i < 3; i++) data[i + 1] = db9_saturn_read_analog(port, type, powered); db9_saturn_write_sub(port, type, 3, powered, 0); return data[0] = 0xe3; } fallthrough; 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 *devs[], int n, int max_pads){ struct input_dev *dev; int tmp, i, j; tmp = (id == 0x41) ? 60 : 10; for (j = 0; j < tmp && n < max_pads; j += 10, n++) { dev = devs[n]; switch (data[j]) { case 0x16: /* multi controller (analog 4 axis) */ input_report_abs(dev, db9_abs[5], data[j + 6]); fallthrough; case 0x15: /* mission stick (analog 3 axis) */ input_report_abs(dev, db9_abs[3], data[j + 4]); input_report_abs(dev, db9_abs[4], data[j + 5]); fallthrough; case 0x13: /* racing controller (analog 1 axis) */ input_report_abs(dev, db9_abs[2], data[j + 3]); fallthrough; case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ case 0x02: /* digital pad (digital 2 axis + buttons) */ input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); for (i = 0; i < 9; i++) input_report_key(dev, 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, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); for (i = 0; i < 9; i++) input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); input_report_abs(dev, db9_abs[2], data[j + 3]); input_report_abs(dev, db9_abs[3], data[j + 4]); input_report_abs(dev, db9_abs[4], data[j + 5]); /* input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); */ input_report_abs(dev, db9_abs[6], data[j + 7]); input_report_abs(dev, db9_abs[7], data[j + 8]); input_report_abs(dev, db9_abs[5], data[j + 9]); break; case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ input_report_key(dev, BTN_A, data[j + 3] & 0x80); input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f); break; case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ input_report_key(dev, BTN_START, data[j + 1] & 0x08); input_report_key(dev, BTN_A, data[j + 1] & 0x04); input_report_key(dev, BTN_C, data[j + 1] & 0x02); input_report_key(dev, BTN_B, data[j + 1] & 0x01); input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80); input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */ break; case 0xff: default: /* no pad */ input_report_abs(dev, db9_abs[0], 0); input_report_abs(dev, db9_abs[1], 0); for (i = 0; i < 9; i++) input_report_key(dev, db9_cd32_btn[i], 0); break; } } return n;} static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[]){ 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_modes[mode].n_pads, 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, devs, tmp, max_pads); } return 0;} static void db9_timer(struct timer_list *t){ struct db9 *db9 = timer_container_of(db9, t, timer); struct parport *port = db9->pd->port; struct input_dev *dev = db9->dev[0]; struct input_dev *dev2 = db9->dev[1]; int data, i; switch (db9->mode) { case DB9_MULTI_0802_2: data = parport_read_data(port) >> 3; input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1); fallthrough; 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, 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); Lines 1–500 of 705. 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// SPDX-License-Identifier: GPL-2.0-or-later /* * 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 */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/parport.h> #include <linux/input.h> #include <linux/mutex.h> #include <linux/slab.h> MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver"); MODULE_LICENSE("GPL"); struct db9_config { int args[2]; unsigned int nargs; }; #define DB9_MAX_PORTS 3 static struct db9_config db9_cfg[DB9_MAX_PORTS]; module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0); MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)"); module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0); MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)"); module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0); MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)"); #define DB9_ARG_PARPORT 0 #define DB9_ARG_MODE 1 #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_GENESIS6_DELAY 14 #define DB9_REFRESH_TIME HZ/100 #define DB9_MAX_DEVICES 2 struct db9_mode_data { const char *name; const short *buttons; int n_buttons; int n_pads; int n_axis; int bidirectional; int reverse; }; struct db9 { struct input_dev *dev[DB9_MAX_DEVICES]; struct timer_list timer; struct pardevice *pd; int mode; int used; int parportno; struct mutex mutex; char phys[DB9_MAX_DEVICES][32]; }; static struct db9 *db9_base[3]; static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB }; static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE }; static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START }; 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 struct db9_mode_data db9_modes[] = { { NULL, NULL, 0, 0, 0, 0, 0 }, { "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, { "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 }, { "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 }, { NULL, NULL, 0, 0, 0, 0, 0 }, { "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 }, { "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 }, { "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 }, { "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 }, { "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 }, { "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 }, { "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 }, { "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 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; } fallthrough; 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 *devs[], int n, int max_pads) { struct input_dev *dev; int tmp, i, j; tmp = (id == 0x41) ? 60 : 10; for (j = 0; j < tmp && n < max_pads; j += 10, n++) { dev = devs[n]; switch (data[j]) { case 0x16: /* multi controller (analog 4 axis) */ input_report_abs(dev, db9_abs[5], data[j + 6]); fallthrough; case 0x15: /* mission stick (analog 3 axis) */ input_report_abs(dev, db9_abs[3], data[j + 4]); input_report_abs(dev, db9_abs[4], data[j + 5]); fallthrough; case 0x13: /* racing controller (analog 1 axis) */ input_report_abs(dev, db9_abs[2], data[j + 3]); fallthrough; case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ case 0x02: /* digital pad (digital 2 axis + buttons) */ input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); for (i = 0; i < 9; i++) input_report_key(dev, 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, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); for (i = 0; i < 9; i++) input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); input_report_abs(dev, db9_abs[2], data[j + 3]); input_report_abs(dev, db9_abs[3], data[j + 4]); input_report_abs(dev, db9_abs[4], data[j + 5]); /* input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); */ input_report_abs(dev, db9_abs[6], data[j + 7]); input_report_abs(dev, db9_abs[7], data[j + 8]); input_report_abs(dev, db9_abs[5], data[j + 9]); break; case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ input_report_key(dev, BTN_A, data[j + 3] & 0x80); input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f); break; case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ input_report_key(dev, BTN_START, data[j + 1] & 0x08); input_report_key(dev, BTN_A, data[j + 1] & 0x04); input_report_key(dev, BTN_C, data[j + 1] & 0x02); input_report_key(dev, BTN_B, data[j + 1] & 0x01); input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80); input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */ break; case 0xff: default: /* no pad */ input_report_abs(dev, db9_abs[0], 0); input_report_abs(dev, db9_abs[1], 0); for (i = 0; i < 9; i++) input_report_key(dev, db9_cd32_btn[i], 0); break; } } return n; } static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[]) { 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_modes[mode].n_pads, 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, devs, tmp, max_pads); } return 0; } static void db9_timer(struct timer_list *t) { struct db9 *db9 = timer_container_of(db9, t, timer); struct parport *port = db9->pd->port; struct input_dev *dev = db9->dev[0]; struct input_dev *dev2 = db9->dev[1]; int data, i; switch (db9->mode) { case DB9_MULTI_0802_2: data = parport_read_data(port) >> 3; input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1); fallthrough; 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, 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);