mirror of https://github.com/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.
223 lines
5.5 KiB
223 lines
5.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
|
* Copyright (c) 1999-2001 Vojtech Pavlik |
|
* |
|
* Based on the work of: |
|
* David Thompson |
|
*/ |
|
|
|
/* |
|
* SpaceTec SpaceOrb 360 and Avenger 6dof controller driver for Linux |
|
*/ |
|
|
|
/* |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/slab.h> |
|
#include <linux/module.h> |
|
#include <linux/input.h> |
|
#include <linux/serio.h> |
|
|
|
#define DRIVER_DESC "SpaceTec SpaceOrb 360 and Avenger 6dof controller driver" |
|
|
|
MODULE_AUTHOR("Vojtech Pavlik <[email protected]>"); |
|
MODULE_DESCRIPTION(DRIVER_DESC); |
|
MODULE_LICENSE("GPL"); |
|
|
|
/* |
|
* Constants. |
|
*/ |
|
|
|
#define SPACEORB_MAX_LENGTH 64 |
|
|
|
static int spaceorb_buttons[] = { BTN_TL, BTN_TR, BTN_Y, BTN_X, BTN_B, BTN_A }; |
|
static int spaceorb_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ }; |
|
|
|
/* |
|
* Per-Orb data. |
|
*/ |
|
|
|
struct spaceorb { |
|
struct input_dev *dev; |
|
int idx; |
|
unsigned char data[SPACEORB_MAX_LENGTH]; |
|
char phys[32]; |
|
}; |
|
|
|
static unsigned char spaceorb_xor[] = "SpaceWare"; |
|
|
|
static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive queue overflow", "Transmit queue timeout", |
|
"Bad packet", "Power brown-out", "EEPROM checksum error", "Hardware fault" }; |
|
|
|
/* |
|
* spaceorb_process_packet() decodes packets the driver receives from the |
|
* SpaceOrb. |
|
*/ |
|
|
|
static void spaceorb_process_packet(struct spaceorb *spaceorb) |
|
{ |
|
struct input_dev *dev = spaceorb->dev; |
|
unsigned char *data = spaceorb->data; |
|
unsigned char c = 0; |
|
int axes[6]; |
|
int i; |
|
|
|
if (spaceorb->idx < 2) return; |
|
for (i = 0; i < spaceorb->idx; i++) c ^= data[i]; |
|
if (c) return; |
|
|
|
switch (data[0]) { |
|
|
|
case 'R': /* Reset packet */ |
|
spaceorb->data[spaceorb->idx - 1] = 0; |
|
for (i = 1; i < spaceorb->idx && spaceorb->data[i] == ' '; i++); |
|
printk(KERN_INFO "input: %s [%s] is %s\n", |
|
dev->name, spaceorb->data + i, spaceorb->phys); |
|
break; |
|
|
|
case 'D': /* Ball + button data */ |
|
if (spaceorb->idx != 12) return; |
|
for (i = 0; i < 9; i++) spaceorb->data[i+2] ^= spaceorb_xor[i]; |
|
axes[0] = ( data[2] << 3) | (data[ 3] >> 4); |
|
axes[1] = ((data[3] & 0x0f) << 6) | (data[ 4] >> 1); |
|
axes[2] = ((data[4] & 0x01) << 9) | (data[ 5] << 2) | (data[4] >> 5); |
|
axes[3] = ((data[6] & 0x1f) << 5) | (data[ 7] >> 2); |
|
axes[4] = ((data[7] & 0x03) << 8) | (data[ 8] << 1) | (data[7] >> 6); |
|
axes[5] = ((data[9] & 0x3f) << 4) | (data[10] >> 3); |
|
for (i = 0; i < 6; i++) |
|
input_report_abs(dev, spaceorb_axes[i], axes[i] - ((axes[i] & 0x200) ? 1024 : 0)); |
|
for (i = 0; i < 6; i++) |
|
input_report_key(dev, spaceorb_buttons[i], (data[1] >> i) & 1); |
|
break; |
|
|
|
case 'K': /* Button data */ |
|
if (spaceorb->idx != 5) return; |
|
for (i = 0; i < 6; i++) |
|
input_report_key(dev, spaceorb_buttons[i], (data[2] >> i) & 1); |
|
|
|
break; |
|
|
|
case 'E': /* Error packet */ |
|
if (spaceorb->idx != 4) return; |
|
printk(KERN_ERR "spaceorb: Device error. [ "); |
|
for (i = 0; i < 7; i++) if (data[1] & (1 << i)) printk("%s ", spaceorb_errors[i]); |
|
printk("]\n"); |
|
break; |
|
} |
|
|
|
input_sync(dev); |
|
} |
|
|
|
static irqreturn_t spaceorb_interrupt(struct serio *serio, |
|
unsigned char data, unsigned int flags) |
|
{ |
|
struct spaceorb* spaceorb = serio_get_drvdata(serio); |
|
|
|
if (~data & 0x80) { |
|
if (spaceorb->idx) spaceorb_process_packet(spaceorb); |
|
spaceorb->idx = 0; |
|
} |
|
if (spaceorb->idx < SPACEORB_MAX_LENGTH) |
|
spaceorb->data[spaceorb->idx++] = data & 0x7f; |
|
return IRQ_HANDLED; |
|
} |
|
|
|
/* |
|
* spaceorb_disconnect() is the opposite of spaceorb_connect() |
|
*/ |
|
|
|
static void spaceorb_disconnect(struct serio *serio) |
|
{ |
|
struct spaceorb* spaceorb = serio_get_drvdata(serio); |
|
|
|
serio_close(serio); |
|
serio_set_drvdata(serio, NULL); |
|
input_unregister_device(spaceorb->dev); |
|
kfree(spaceorb); |
|
} |
|
|
|
/* |
|
* spaceorb_connect() is the routine that is called when someone adds a |
|
* new serio device that supports SpaceOrb/Avenger protocol and registers |
|
* it as an input device. |
|
*/ |
|
|
|
static int spaceorb_connect(struct serio *serio, struct serio_driver *drv) |
|
{ |
|
struct spaceorb *spaceorb; |
|
struct input_dev *input_dev; |
|
int err = -ENOMEM; |
|
int i; |
|
|
|
spaceorb = kzalloc(sizeof(struct spaceorb), GFP_KERNEL); |
|
input_dev = input_allocate_device(); |
|
if (!spaceorb || !input_dev) |
|
goto fail1; |
|
|
|
spaceorb->dev = input_dev; |
|
snprintf(spaceorb->phys, sizeof(spaceorb->phys), "%s/input0", serio->phys); |
|
|
|
input_dev->name = "SpaceTec SpaceOrb 360 / Avenger"; |
|
input_dev->phys = spaceorb->phys; |
|
input_dev->id.bustype = BUS_RS232; |
|
input_dev->id.vendor = SERIO_SPACEORB; |
|
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_ABS); |
|
|
|
for (i = 0; i < 6; i++) |
|
set_bit(spaceorb_buttons[i], input_dev->keybit); |
|
|
|
for (i = 0; i < 6; i++) |
|
input_set_abs_params(input_dev, spaceorb_axes[i], -508, 508, 0, 0); |
|
|
|
serio_set_drvdata(serio, spaceorb); |
|
|
|
err = serio_open(serio, drv); |
|
if (err) |
|
goto fail2; |
|
|
|
err = input_register_device(spaceorb->dev); |
|
if (err) |
|
goto fail3; |
|
|
|
return 0; |
|
|
|
fail3: serio_close(serio); |
|
fail2: serio_set_drvdata(serio, NULL); |
|
fail1: input_free_device(input_dev); |
|
kfree(spaceorb); |
|
return err; |
|
} |
|
|
|
/* |
|
* The serio driver structure. |
|
*/ |
|
|
|
static const struct serio_device_id spaceorb_serio_ids[] = { |
|
{ |
|
.type = SERIO_RS232, |
|
.proto = SERIO_SPACEORB, |
|
.id = SERIO_ANY, |
|
.extra = SERIO_ANY, |
|
}, |
|
{ 0 } |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids); |
|
|
|
static struct serio_driver spaceorb_drv = { |
|
.driver = { |
|
.name = "spaceorb", |
|
}, |
|
.description = DRIVER_DESC, |
|
.id_table = spaceorb_serio_ids, |
|
.interrupt = spaceorb_interrupt, |
|
.connect = spaceorb_connect, |
|
.disconnect = spaceorb_disconnect, |
|
}; |
|
|
|
module_serio_driver(spaceorb_drv);
|
|
|