forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
203 lines
5.1 KiB
203 lines
5.1 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
|
* Copyright (c) 1999-2001 Vojtech Pavlik |
|
*/ |
|
|
|
/* |
|
* Logitech WingMan Warrior joystick driver for Linux |
|
*/ |
|
|
|
/* |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/module.h> |
|
#include <linux/slab.h> |
|
#include <linux/input.h> |
|
#include <linux/serio.h> |
|
|
|
#define DRIVER_DESC "Logitech WingMan Warrior joystick driver" |
|
|
|
MODULE_AUTHOR("Vojtech Pavlik <[email protected]>"); |
|
MODULE_DESCRIPTION(DRIVER_DESC); |
|
MODULE_LICENSE("GPL"); |
|
|
|
/* |
|
* Constants. |
|
*/ |
|
|
|
#define WARRIOR_MAX_LENGTH 16 |
|
static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 }; |
|
|
|
/* |
|
* Per-Warrior data. |
|
*/ |
|
|
|
struct warrior { |
|
struct input_dev *dev; |
|
int idx, len; |
|
unsigned char data[WARRIOR_MAX_LENGTH]; |
|
char phys[32]; |
|
}; |
|
|
|
/* |
|
* warrior_process_packet() decodes packets the driver receives from the |
|
* Warrior. It updates the data accordingly. |
|
*/ |
|
|
|
static void warrior_process_packet(struct warrior *warrior) |
|
{ |
|
struct input_dev *dev = warrior->dev; |
|
unsigned char *data = warrior->data; |
|
|
|
if (!warrior->idx) return; |
|
|
|
switch ((data[0] >> 4) & 7) { |
|
case 1: /* Button data */ |
|
input_report_key(dev, BTN_TRIGGER, data[3] & 1); |
|
input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1); |
|
input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1); |
|
input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1); |
|
break; |
|
case 3: /* XY-axis info->data */ |
|
input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5))); |
|
input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); |
|
break; |
|
case 5: /* Throttle, spinner, hat info->data */ |
|
input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); |
|
input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0)); |
|
input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0)); |
|
input_report_rel(dev, REL_DIAL, (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5)); |
|
break; |
|
} |
|
input_sync(dev); |
|
} |
|
|
|
/* |
|
* warrior_interrupt() is called by the low level driver when characters |
|
* are ready for us. We then buffer them for further processing, or call the |
|
* packet processing routine. |
|
*/ |
|
|
|
static irqreturn_t warrior_interrupt(struct serio *serio, |
|
unsigned char data, unsigned int flags) |
|
{ |
|
struct warrior *warrior = serio_get_drvdata(serio); |
|
|
|
if (data & 0x80) { |
|
if (warrior->idx) warrior_process_packet(warrior); |
|
warrior->idx = 0; |
|
warrior->len = warrior_lengths[(data >> 4) & 7]; |
|
} |
|
|
|
if (warrior->idx < warrior->len) |
|
warrior->data[warrior->idx++] = data; |
|
|
|
if (warrior->idx == warrior->len) { |
|
if (warrior->idx) warrior_process_packet(warrior); |
|
warrior->idx = 0; |
|
warrior->len = 0; |
|
} |
|
return IRQ_HANDLED; |
|
} |
|
|
|
/* |
|
* warrior_disconnect() is the opposite of warrior_connect() |
|
*/ |
|
|
|
static void warrior_disconnect(struct serio *serio) |
|
{ |
|
struct warrior *warrior = serio_get_drvdata(serio); |
|
|
|
serio_close(serio); |
|
serio_set_drvdata(serio, NULL); |
|
input_unregister_device(warrior->dev); |
|
kfree(warrior); |
|
} |
|
|
|
/* |
|
* warrior_connect() is the routine that is called when someone adds a |
|
* new serio device. It looks for the Warrior, and if found, registers |
|
* it as an input device. |
|
*/ |
|
|
|
static int warrior_connect(struct serio *serio, struct serio_driver *drv) |
|
{ |
|
struct warrior *warrior; |
|
struct input_dev *input_dev; |
|
int err = -ENOMEM; |
|
|
|
warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL); |
|
input_dev = input_allocate_device(); |
|
if (!warrior || !input_dev) |
|
goto fail1; |
|
|
|
warrior->dev = input_dev; |
|
snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys); |
|
|
|
input_dev->name = "Logitech WingMan Warrior"; |
|
input_dev->phys = warrior->phys; |
|
input_dev->id.bustype = BUS_RS232; |
|
input_dev->id.vendor = SERIO_WARRIOR; |
|
input_dev->id.product = 0x0001; |
|
input_dev->id.version = 0x0100; |
|
input_dev->dev.parent = &serio->dev; |
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) | |
|
BIT_MASK(EV_ABS); |
|
input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) | |
|
BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2); |
|
input_dev->relbit[0] = BIT_MASK(REL_DIAL); |
|
input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8); |
|
input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8); |
|
input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0); |
|
input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0); |
|
input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0); |
|
|
|
serio_set_drvdata(serio, warrior); |
|
|
|
err = serio_open(serio, drv); |
|
if (err) |
|
goto fail2; |
|
|
|
err = input_register_device(warrior->dev); |
|
if (err) |
|
goto fail3; |
|
|
|
return 0; |
|
|
|
fail3: serio_close(serio); |
|
fail2: serio_set_drvdata(serio, NULL); |
|
fail1: input_free_device(input_dev); |
|
kfree(warrior); |
|
return err; |
|
} |
|
|
|
/* |
|
* The serio driver structure. |
|
*/ |
|
|
|
static const struct serio_device_id warrior_serio_ids[] = { |
|
{ |
|
.type = SERIO_RS232, |
|
.proto = SERIO_WARRIOR, |
|
.id = SERIO_ANY, |
|
.extra = SERIO_ANY, |
|
}, |
|
{ 0 } |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(serio, warrior_serio_ids); |
|
|
|
static struct serio_driver warrior_drv = { |
|
.driver = { |
|
.name = "warrior", |
|
}, |
|
.description = DRIVER_DESC, |
|
.id_table = warrior_serio_ids, |
|
.interrupt = warrior_interrupt, |
|
.connect = warrior_connect, |
|
.disconnect = warrior_disconnect, |
|
}; |
|
|
|
module_serio_driver(warrior_drv);
|
|
|