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422 lines
10 KiB
422 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 1998-2001 Vojtech Pavlik |
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* |
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* Based on the work of: |
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* Trystan Larey-Williams |
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*/ |
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/* |
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* ThrustMaster DirectConnect (BSP) joystick family driver for Linux |
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*/ |
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/* |
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*/ |
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#include <linux/delay.h> |
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#include <linux/kernel.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/gameport.h> |
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#include <linux/input.h> |
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#include <linux/jiffies.h> |
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#define DRIVER_DESC "ThrustMaster DirectConnect joystick driver" |
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MODULE_AUTHOR("Vojtech Pavlik <[email protected]>"); |
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MODULE_DESCRIPTION(DRIVER_DESC); |
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MODULE_LICENSE("GPL"); |
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#define TMDC_MAX_START 600 /* 600 us */ |
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#define TMDC_MAX_STROBE 60 /* 60 us */ |
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#define TMDC_MAX_LENGTH 13 |
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#define TMDC_MODE_M3DI 1 |
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#define TMDC_MODE_3DRP 3 |
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#define TMDC_MODE_AT 4 |
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#define TMDC_MODE_FM 8 |
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#define TMDC_MODE_FGP 163 |
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#define TMDC_BYTE_ID 10 |
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#define TMDC_BYTE_REV 11 |
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#define TMDC_BYTE_DEF 12 |
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#define TMDC_ABS 7 |
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#define TMDC_ABS_HAT 4 |
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#define TMDC_BTN 16 |
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static const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 }; |
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static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 }; |
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static const signed char tmdc_abs[TMDC_ABS] = |
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{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ }; |
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static const signed char tmdc_abs_hat[TMDC_ABS_HAT] = |
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{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y }; |
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static const signed char tmdc_abs_at[TMDC_ABS] = |
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{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE }; |
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static const signed char tmdc_abs_fm[TMDC_ABS] = |
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{ ABS_RX, ABS_RY, ABS_X, ABS_Y }; |
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static const short tmdc_btn_pad[TMDC_BTN] = |
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{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR }; |
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static const short tmdc_btn_joy[TMDC_BTN] = |
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{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE, |
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BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z }; |
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static const short tmdc_btn_fm[TMDC_BTN] = |
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{ BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 }; |
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static const short tmdc_btn_at[TMDC_BTN] = |
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{ BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4, |
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BTN_BASE3, BTN_BASE2, BTN_BASE }; |
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static const struct { |
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int x; |
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int y; |
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} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}}; |
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static const struct tmdc_model { |
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unsigned char id; |
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const char *name; |
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char abs; |
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char hats; |
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char btnc[4]; |
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char btno[4]; |
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const signed char *axes; |
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const short *buttons; |
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} tmdc_models[] = { |
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{ 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy }, |
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{ 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad }, |
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{ 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at }, |
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{ 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm }, |
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{ 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad }, |
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{ 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy } |
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}; |
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struct tmdc_port { |
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struct input_dev *dev; |
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char name[64]; |
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char phys[32]; |
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int mode; |
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const signed char *abs; |
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const short *btn; |
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unsigned char absc; |
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unsigned char btnc[4]; |
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unsigned char btno[4]; |
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}; |
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struct tmdc { |
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struct gameport *gameport; |
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struct tmdc_port *port[2]; |
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#if 0 |
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struct input_dev *dev[2]; |
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char name[2][64]; |
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char phys[2][32]; |
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int mode[2]; |
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signed char *abs[2]; |
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short *btn[2]; |
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unsigned char absc[2]; |
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unsigned char btnc[2][4]; |
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unsigned char btno[2][4]; |
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#endif |
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int reads; |
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int bads; |
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unsigned char exists; |
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}; |
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/* |
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* tmdc_read_packet() reads a ThrustMaster packet. |
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*/ |
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static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH]) |
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{ |
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unsigned char u, v, w, x; |
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unsigned long flags; |
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int i[2], j[2], t[2], p, k; |
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p = gameport_time(gameport, TMDC_MAX_STROBE); |
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for (k = 0; k < 2; k++) { |
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t[k] = gameport_time(gameport, TMDC_MAX_START); |
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i[k] = j[k] = 0; |
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} |
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local_irq_save(flags); |
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gameport_trigger(gameport); |
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w = gameport_read(gameport) >> 4; |
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do { |
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x = w; |
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w = gameport_read(gameport) >> 4; |
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for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) { |
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if (~v & u & 2) { |
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if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue; |
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t[k] = p; |
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if (j[k] == 0) { /* Start bit */ |
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if (~v & 1) t[k] = 0; |
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data[k][i[k]] = 0; j[k]++; continue; |
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} |
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if (j[k] == 9) { /* Stop bit */ |
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if (v & 1) t[k] = 0; |
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j[k] = 0; i[k]++; continue; |
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} |
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data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */ |
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} |
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t[k]--; |
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} |
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} while (t[0] > 0 || t[1] > 0); |
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local_irq_restore(flags); |
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return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1); |
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} |
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static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data) |
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{ |
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int i, k, l; |
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if (data[TMDC_BYTE_ID] != port->mode) |
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return -1; |
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for (i = 0; i < port->absc; i++) { |
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if (port->abs[i] < 0) |
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return 0; |
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input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]); |
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} |
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switch (port->mode) { |
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case TMDC_MODE_M3DI: |
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i = tmdc_byte_d[0]; |
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input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1)); |
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input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i] & 1)); |
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break; |
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case TMDC_MODE_AT: |
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i = tmdc_byte_a[3]; |
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input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x); |
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input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y); |
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break; |
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} |
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for (k = l = 0; k < 4; k++) { |
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for (i = 0; i < port->btnc[k]; i++) |
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input_report_key(port->dev, port->btn[i + l], |
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((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1)); |
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l += port->btnc[k]; |
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} |
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input_sync(port->dev); |
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return 0; |
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} |
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/* |
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* tmdc_poll() reads and analyzes ThrustMaster joystick data. |
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*/ |
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static void tmdc_poll(struct gameport *gameport) |
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{ |
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unsigned char data[2][TMDC_MAX_LENGTH]; |
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struct tmdc *tmdc = gameport_get_drvdata(gameport); |
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unsigned char r, bad = 0; |
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int i; |
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tmdc->reads++; |
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if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists) |
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bad = 1; |
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else { |
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for (i = 0; i < 2; i++) { |
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if (r & (1 << i) & tmdc->exists) { |
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if (tmdc_parse_packet(tmdc->port[i], data[i])) |
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bad = 1; |
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} |
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} |
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} |
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tmdc->bads += bad; |
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} |
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static int tmdc_open(struct input_dev *dev) |
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{ |
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struct tmdc *tmdc = input_get_drvdata(dev); |
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gameport_start_polling(tmdc->gameport); |
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return 0; |
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} |
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static void tmdc_close(struct input_dev *dev) |
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{ |
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struct tmdc *tmdc = input_get_drvdata(dev); |
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gameport_stop_polling(tmdc->gameport); |
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} |
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static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data) |
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{ |
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const struct tmdc_model *model; |
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struct tmdc_port *port; |
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struct input_dev *input_dev; |
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int i, j, b = 0; |
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int err; |
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tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL); |
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input_dev = input_allocate_device(); |
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if (!port || !input_dev) { |
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err = -ENOMEM; |
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goto fail; |
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} |
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port->mode = data[TMDC_BYTE_ID]; |
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for (model = tmdc_models; model->id && model->id != port->mode; model++) |
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/* empty */; |
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port->abs = model->axes; |
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port->btn = model->buttons; |
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if (!model->id) { |
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port->absc = data[TMDC_BYTE_DEF] >> 4; |
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for (i = 0; i < 4; i++) |
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port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0; |
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} else { |
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port->absc = model->abs; |
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for (i = 0; i < 4; i++) |
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port->btnc[i] = model->btnc[i]; |
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} |
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for (i = 0; i < 4; i++) |
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port->btno[i] = model->btno[i]; |
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snprintf(port->name, sizeof(port->name), model->name, |
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port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode); |
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snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i); |
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port->dev = input_dev; |
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input_dev->name = port->name; |
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input_dev->phys = port->phys; |
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input_dev->id.bustype = BUS_GAMEPORT; |
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input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER; |
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input_dev->id.product = model->id; |
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input_dev->id.version = 0x0100; |
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input_dev->dev.parent = &tmdc->gameport->dev; |
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input_set_drvdata(input_dev, tmdc); |
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input_dev->open = tmdc_open; |
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input_dev->close = tmdc_close; |
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
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for (i = 0; i < port->absc && i < TMDC_ABS; i++) |
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if (port->abs[i] >= 0) |
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input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4); |
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for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++) |
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input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0); |
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for (i = 0; i < 4; i++) { |
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for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++) |
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set_bit(port->btn[j + b], input_dev->keybit); |
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b += port->btnc[i]; |
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} |
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err = input_register_device(port->dev); |
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if (err) |
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goto fail; |
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return 0; |
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fail: input_free_device(input_dev); |
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kfree(port); |
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return err; |
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} |
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/* |
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* tmdc_probe() probes for ThrustMaster type joysticks. |
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*/ |
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static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv) |
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{ |
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unsigned char data[2][TMDC_MAX_LENGTH]; |
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struct tmdc *tmdc; |
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int i; |
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int err; |
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if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL))) |
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return -ENOMEM; |
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tmdc->gameport = gameport; |
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gameport_set_drvdata(gameport, tmdc); |
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err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); |
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if (err) |
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goto fail1; |
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if (!(tmdc->exists = tmdc_read_packet(gameport, data))) { |
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err = -ENODEV; |
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goto fail2; |
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} |
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gameport_set_poll_handler(gameport, tmdc_poll); |
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gameport_set_poll_interval(gameport, 20); |
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for (i = 0; i < 2; i++) { |
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if (tmdc->exists & (1 << i)) { |
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err = tmdc_setup_port(tmdc, i, data[i]); |
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if (err) |
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goto fail3; |
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} |
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} |
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return 0; |
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fail3: while (--i >= 0) { |
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if (tmdc->port[i]) { |
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input_unregister_device(tmdc->port[i]->dev); |
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kfree(tmdc->port[i]); |
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} |
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} |
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fail2: gameport_close(gameport); |
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fail1: gameport_set_drvdata(gameport, NULL); |
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kfree(tmdc); |
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return err; |
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} |
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static void tmdc_disconnect(struct gameport *gameport) |
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{ |
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struct tmdc *tmdc = gameport_get_drvdata(gameport); |
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int i; |
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for (i = 0; i < 2; i++) { |
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if (tmdc->port[i]) { |
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input_unregister_device(tmdc->port[i]->dev); |
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kfree(tmdc->port[i]); |
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} |
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} |
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gameport_close(gameport); |
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gameport_set_drvdata(gameport, NULL); |
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kfree(tmdc); |
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} |
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static struct gameport_driver tmdc_drv = { |
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.driver = { |
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.name = "tmdc", |
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.owner = THIS_MODULE, |
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}, |
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.description = DRIVER_DESC, |
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.connect = tmdc_connect, |
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.disconnect = tmdc_disconnect, |
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}; |
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module_gameport_driver(tmdc_drv);
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