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399 lines
10 KiB
399 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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/* |
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* FP-Gaming Assassin 3D joystick driver for Linux |
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*/ |
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/* |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/slab.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 "FP-Gaming Assassin 3D 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 A3D_MAX_START 600 /* 600 us */ |
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#define A3D_MAX_STROBE 80 /* 80 us */ |
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#define A3D_MAX_LENGTH 40 /* 40*3 bits */ |
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#define A3D_MODE_A3D 1 /* Assassin 3D */ |
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#define A3D_MODE_PAN 2 /* Panther */ |
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#define A3D_MODE_OEM 3 /* Panther OEM version */ |
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#define A3D_MODE_PXL 4 /* Panther XL */ |
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static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther", |
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"MadCatz Panther XL", "MadCatz Panther XL w/ rudder" }; |
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struct a3d { |
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struct gameport *gameport; |
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struct gameport *adc; |
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struct input_dev *dev; |
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int axes[4]; |
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int buttons; |
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int mode; |
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int length; |
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int reads; |
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int bads; |
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char phys[32]; |
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}; |
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/* |
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* a3d_read_packet() reads an Assassin 3D packet. |
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*/ |
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static int a3d_read_packet(struct gameport *gameport, int length, char *data) |
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{ |
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unsigned long flags; |
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unsigned char u, v; |
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unsigned int t, s; |
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int i; |
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i = 0; |
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t = gameport_time(gameport, A3D_MAX_START); |
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s = gameport_time(gameport, A3D_MAX_STROBE); |
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local_irq_save(flags); |
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gameport_trigger(gameport); |
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v = gameport_read(gameport); |
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while (t > 0 && i < length) { |
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t--; |
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u = v; v = gameport_read(gameport); |
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if (~v & u & 0x10) { |
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data[i++] = v >> 5; |
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t = s; |
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} |
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} |
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local_irq_restore(flags); |
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return i; |
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} |
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/* |
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* a3d_csum() computes checksum of triplet packet |
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*/ |
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static int a3d_csum(char *data, int count) |
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{ |
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int i, csum = 0; |
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for (i = 0; i < count - 2; i++) |
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csum += data[i]; |
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return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]); |
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} |
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static void a3d_read(struct a3d *a3d, unsigned char *data) |
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{ |
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struct input_dev *dev = a3d->dev; |
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switch (a3d->mode) { |
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case A3D_MODE_A3D: |
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case A3D_MODE_OEM: |
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case A3D_MODE_PAN: |
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input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7)); |
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input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7)); |
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input_report_key(dev, BTN_RIGHT, data[2] & 1); |
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input_report_key(dev, BTN_LEFT, data[3] & 2); |
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input_report_key(dev, BTN_MIDDLE, data[3] & 4); |
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input_sync(dev); |
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a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128; |
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a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128; |
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a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128; |
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a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128; |
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a3d->buttons = ((data[3] << 3) | data[4]) & 0xf; |
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break; |
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case A3D_MODE_PXL: |
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input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7)); |
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input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7)); |
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input_report_key(dev, BTN_RIGHT, data[2] & 1); |
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input_report_key(dev, BTN_LEFT, data[3] & 2); |
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input_report_key(dev, BTN_MIDDLE, data[3] & 4); |
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input_report_key(dev, BTN_SIDE, data[7] & 2); |
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input_report_key(dev, BTN_EXTRA, data[7] & 4); |
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input_report_abs(dev, ABS_X, ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128); |
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input_report_abs(dev, ABS_Y, ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128); |
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input_report_abs(dev, ABS_RUDDER, ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128); |
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input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128); |
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input_report_abs(dev, ABS_HAT0X, ( data[5] & 1) - ((data[5] >> 2) & 1)); |
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input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1)); |
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input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3] & 1)); |
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input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4] & 1)); |
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input_report_key(dev, BTN_TRIGGER, data[8] & 1); |
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input_report_key(dev, BTN_THUMB, data[8] & 2); |
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input_report_key(dev, BTN_TOP, data[8] & 4); |
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input_report_key(dev, BTN_PINKIE, data[7] & 1); |
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input_sync(dev); |
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break; |
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} |
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} |
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/* |
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* a3d_poll() reads and analyzes A3D joystick data. |
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*/ |
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static void a3d_poll(struct gameport *gameport) |
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{ |
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struct a3d *a3d = gameport_get_drvdata(gameport); |
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unsigned char data[A3D_MAX_LENGTH]; |
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a3d->reads++; |
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if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length || |
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data[0] != a3d->mode || a3d_csum(data, a3d->length)) |
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a3d->bads++; |
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else |
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a3d_read(a3d, data); |
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} |
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/* |
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* a3d_adc_cooked_read() copies the acis and button data to the |
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* callers arrays. It could do the read itself, but the caller could |
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* call this more than 50 times a second, which would use too much CPU. |
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*/ |
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static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons) |
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{ |
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struct a3d *a3d = gameport->port_data; |
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int i; |
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for (i = 0; i < 4; i++) |
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axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1; |
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*buttons = a3d->buttons; |
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return 0; |
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} |
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/* |
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* a3d_adc_open() is the gameport open routine. It refuses to serve |
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* any but cooked data. |
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*/ |
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static int a3d_adc_open(struct gameport *gameport, int mode) |
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{ |
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struct a3d *a3d = gameport->port_data; |
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if (mode != GAMEPORT_MODE_COOKED) |
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return -1; |
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gameport_start_polling(a3d->gameport); |
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return 0; |
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} |
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/* |
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* a3d_adc_close() is a callback from the input close routine. |
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*/ |
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static void a3d_adc_close(struct gameport *gameport) |
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{ |
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struct a3d *a3d = gameport->port_data; |
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gameport_stop_polling(a3d->gameport); |
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} |
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/* |
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* a3d_open() is a callback from the input open routine. |
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*/ |
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static int a3d_open(struct input_dev *dev) |
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{ |
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struct a3d *a3d = input_get_drvdata(dev); |
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gameport_start_polling(a3d->gameport); |
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return 0; |
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} |
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/* |
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* a3d_close() is a callback from the input close routine. |
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*/ |
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static void a3d_close(struct input_dev *dev) |
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{ |
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struct a3d *a3d = input_get_drvdata(dev); |
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gameport_stop_polling(a3d->gameport); |
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} |
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/* |
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* a3d_connect() probes for A3D joysticks. |
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*/ |
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static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv) |
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{ |
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struct a3d *a3d; |
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struct input_dev *input_dev; |
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struct gameport *adc; |
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unsigned char data[A3D_MAX_LENGTH]; |
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int i; |
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int err; |
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a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL); |
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input_dev = input_allocate_device(); |
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if (!a3d || !input_dev) { |
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err = -ENOMEM; |
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goto fail1; |
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} |
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a3d->dev = input_dev; |
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a3d->gameport = gameport; |
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gameport_set_drvdata(gameport, a3d); |
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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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i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data); |
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if (!i || a3d_csum(data, i)) { |
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err = -ENODEV; |
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goto fail2; |
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} |
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a3d->mode = data[0]; |
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if (!a3d->mode || a3d->mode > 5) { |
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printk(KERN_WARNING "a3d.c: Unknown A3D device detected " |
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"(%s, id=%d), contact <[email protected]>\n", gameport->phys, a3d->mode); |
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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, a3d_poll); |
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gameport_set_poll_interval(gameport, 20); |
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snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys); |
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input_dev->name = a3d_names[a3d->mode]; |
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input_dev->phys = a3d->phys; |
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input_dev->id.bustype = BUS_GAMEPORT; |
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input_dev->id.vendor = GAMEPORT_ID_VENDOR_MADCATZ; |
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input_dev->id.product = a3d->mode; |
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input_dev->id.version = 0x0100; |
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input_dev->dev.parent = &gameport->dev; |
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input_dev->open = a3d_open; |
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input_dev->close = a3d_close; |
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input_set_drvdata(input_dev, a3d); |
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if (a3d->mode == A3D_MODE_PXL) { |
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int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER }; |
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a3d->length = 33; |
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input_dev->evbit[0] |= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY) | |
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BIT_MASK(EV_REL); |
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input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
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input_dev->absbit[0] |= BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | |
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BIT_MASK(ABS_THROTTLE) | BIT_MASK(ABS_RUDDER) | |
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BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) | |
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BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y); |
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) | |
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BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | |
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BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); |
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input_dev->keybit[BIT_WORD(BTN_JOYSTICK)] |= |
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BIT_MASK(BTN_TRIGGER) | BIT_MASK(BTN_THUMB) | |
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BIT_MASK(BTN_TOP) | BIT_MASK(BTN_PINKIE); |
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a3d_read(a3d, data); |
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for (i = 0; i < 4; i++) { |
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if (i < 2) |
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input_set_abs_params(input_dev, axes[i], |
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48, input_abs_get_val(input_dev, axes[i]) * 2 - 48, 0, 8); |
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else |
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input_set_abs_params(input_dev, axes[i], 2, 253, 0, 0); |
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input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0); |
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} |
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} else { |
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a3d->length = 29; |
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input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
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input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) | |
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BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE); |
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a3d_read(a3d, data); |
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if (!(a3d->adc = adc = gameport_allocate_port())) |
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printk(KERN_ERR "a3d: Not enough memory for ADC port\n"); |
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else { |
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adc->port_data = a3d; |
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adc->open = a3d_adc_open; |
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adc->close = a3d_adc_close; |
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adc->cooked_read = a3d_adc_cooked_read; |
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adc->fuzz = 1; |
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gameport_set_name(adc, a3d_names[a3d->mode]); |
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gameport_set_phys(adc, "%s/gameport0", gameport->phys); |
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adc->dev.parent = &gameport->dev; |
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gameport_register_port(adc); |
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} |
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} |
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err = input_register_device(a3d->dev); |
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if (err) |
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goto fail3; |
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return 0; |
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fail3: if (a3d->adc) |
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gameport_unregister_port(a3d->adc); |
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fail2: gameport_close(gameport); |
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fail1: gameport_set_drvdata(gameport, NULL); |
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input_free_device(input_dev); |
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kfree(a3d); |
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return err; |
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} |
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static void a3d_disconnect(struct gameport *gameport) |
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{ |
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struct a3d *a3d = gameport_get_drvdata(gameport); |
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input_unregister_device(a3d->dev); |
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if (a3d->adc) |
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gameport_unregister_port(a3d->adc); |
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gameport_close(gameport); |
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gameport_set_drvdata(gameport, NULL); |
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kfree(a3d); |
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} |
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static struct gameport_driver a3d_drv = { |
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.driver = { |
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.name = "adc", |
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.owner = THIS_MODULE, |
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}, |
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.description = DRIVER_DESC, |
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.connect = a3d_connect, |
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.disconnect = a3d_disconnect, |
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}; |
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module_gameport_driver(a3d_drv);
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