Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
236
drivers/input/joystick/stinger.c
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236
drivers/input/joystick/stinger.c
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/*
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* $Id: stinger.c,v 1.10 2002/01/22 20:29:31 vojtech Exp $
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*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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* Copyright (c) 2000 Mark Fletcher
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*/
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/*
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* Gravis Stinger gamepad driver for Linux
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*/
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/*
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* This program is free warftware; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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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/input.h>
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#include <linux/serio.h>
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#include <linux/init.h>
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#define DRIVER_DESC "Gravis Stinger gamepad driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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/*
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* Constants.
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*/
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#define STINGER_MAX_LENGTH 8
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static char *stinger_name = "Gravis Stinger";
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/*
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* Per-Stinger data.
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*/
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struct stinger {
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struct input_dev dev;
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int idx;
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unsigned char data[STINGER_MAX_LENGTH];
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char phys[32];
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};
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/*
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* stinger_process_packet() decodes packets the driver receives from the
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* Stinger. It updates the data accordingly.
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*/
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static void stinger_process_packet(struct stinger *stinger, struct pt_regs *regs)
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{
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struct input_dev *dev = &stinger->dev;
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unsigned char *data = stinger->data;
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if (!stinger->idx) return;
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input_regs(dev, regs);
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input_report_key(dev, BTN_A, ((data[0] & 0x20) >> 5));
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input_report_key(dev, BTN_B, ((data[0] & 0x10) >> 4));
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input_report_key(dev, BTN_C, ((data[0] & 0x08) >> 3));
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input_report_key(dev, BTN_X, ((data[0] & 0x04) >> 2));
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input_report_key(dev, BTN_Y, ((data[3] & 0x20) >> 5));
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input_report_key(dev, BTN_Z, ((data[3] & 0x10) >> 4));
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input_report_key(dev, BTN_TL, ((data[3] & 0x08) >> 3));
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input_report_key(dev, BTN_TR, ((data[3] & 0x04) >> 2));
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input_report_key(dev, BTN_SELECT, ((data[3] & 0x02) >> 1));
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input_report_key(dev, BTN_START, (data[3] & 0x01));
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input_report_abs(dev, ABS_X, (data[1] & 0x3F) - ((data[0] & 0x01) << 6));
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input_report_abs(dev, ABS_Y, ((data[0] & 0x02) << 5) - (data[2] & 0x3F));
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input_sync(dev);
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return;
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}
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/*
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* stinger_interrupt() is called by the low level driver when characters
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* are ready for us. We then buffer them for further processing, or call the
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* packet processing routine.
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*/
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static irqreturn_t stinger_interrupt(struct serio *serio,
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unsigned char data, unsigned int flags, struct pt_regs *regs)
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{
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struct stinger *stinger = serio_get_drvdata(serio);
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/* All Stinger packets are 4 bytes */
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if (stinger->idx < STINGER_MAX_LENGTH)
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stinger->data[stinger->idx++] = data;
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if (stinger->idx == 4) {
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stinger_process_packet(stinger, regs);
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stinger->idx = 0;
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}
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return IRQ_HANDLED;
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}
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/*
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* stinger_disconnect() is the opposite of stinger_connect()
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*/
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static void stinger_disconnect(struct serio *serio)
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{
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struct stinger *stinger = serio_get_drvdata(serio);
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input_unregister_device(&stinger->dev);
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serio_close(serio);
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serio_set_drvdata(serio, NULL);
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kfree(stinger);
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}
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/*
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* stinger_connect() is the routine that is called when someone adds a
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* new serio device that supports Stinger protocol and registers it as
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* an input device.
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*/
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static int stinger_connect(struct serio *serio, struct serio_driver *drv)
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{
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struct stinger *stinger;
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int i;
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int err;
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if (!(stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL)))
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return -ENOMEM;
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memset(stinger, 0, sizeof(struct stinger));
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stinger->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
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stinger->dev.keybit[LONG(BTN_A)] = BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_X) | \
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BIT(BTN_Y) | BIT(BTN_Z) | BIT(BTN_TL) | BIT(BTN_TR) | \
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BIT(BTN_START) | BIT(BTN_SELECT);
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stinger->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
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sprintf(stinger->phys, "%s/serio0", serio->phys);
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init_input_dev(&stinger->dev);
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stinger->dev.name = stinger_name;
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stinger->dev.phys = stinger->phys;
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stinger->dev.id.bustype = BUS_RS232;
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stinger->dev.id.vendor = SERIO_STINGER;
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stinger->dev.id.product = 0x0001;
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stinger->dev.id.version = 0x0100;
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stinger->dev.dev = &serio->dev;
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for (i = 0; i < 2; i++) {
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stinger->dev.absmax[ABS_X+i] = 64;
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stinger->dev.absmin[ABS_X+i] = -64;
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stinger->dev.absflat[ABS_X+i] = 4;
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}
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stinger->dev.private = stinger;
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serio_set_drvdata(serio, stinger);
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err = serio_open(serio, drv);
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if (err) {
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serio_set_drvdata(serio, NULL);
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kfree(stinger);
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return err;
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}
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input_register_device(&stinger->dev);
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printk(KERN_INFO "input: %s on %s\n", stinger_name, serio->phys);
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return 0;
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}
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/*
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* The serio driver structure.
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*/
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static struct serio_device_id stinger_serio_ids[] = {
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{
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.type = SERIO_RS232,
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.proto = SERIO_STINGER,
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.id = SERIO_ANY,
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.extra = SERIO_ANY,
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},
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{ 0 }
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};
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MODULE_DEVICE_TABLE(serio, stinger_serio_ids);
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static struct serio_driver stinger_drv = {
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.driver = {
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.name = "stinger",
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},
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.description = DRIVER_DESC,
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.id_table = stinger_serio_ids,
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.interrupt = stinger_interrupt,
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.connect = stinger_connect,
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.disconnect = stinger_disconnect,
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};
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/*
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* The functions for inserting/removing us as a module.
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*/
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static int __init stinger_init(void)
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{
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serio_register_driver(&stinger_drv);
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return 0;
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}
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static void __exit stinger_exit(void)
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{
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serio_unregister_driver(&stinger_drv);
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}
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module_init(stinger_init);
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module_exit(stinger_exit);
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