![Tim Schmielau](/assets/img/avatar_default.png)
I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
296 lines
7.4 KiB
C
296 lines
7.4 KiB
C
/*
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* $Id: guillemot.c,v 1.10 2002/01/22 20:28:12 vojtech Exp $
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*
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* Copyright (c) 2001 Vojtech Pavlik
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*/
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/*
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* Guillemot Digital Interface Protocol driver for Linux
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*/
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/*
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* This program is free software; 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/slab.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/init.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 "Guillemot Digital joystick 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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#define GUILLEMOT_MAX_START 600 /* 600 us */
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#define GUILLEMOT_MAX_STROBE 60 /* 60 us */
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#define GUILLEMOT_MAX_LENGTH 17 /* 17 bytes */
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static short guillemot_abs_pad[] =
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{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, -1 };
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static short guillemot_btn_pad[] =
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{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_MODE, BTN_SELECT, -1 };
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static struct {
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int x;
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int y;
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} guillemot_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
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struct guillemot_type {
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unsigned char id;
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short *abs;
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short *btn;
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int hat;
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char *name;
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};
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struct guillemot {
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struct gameport *gameport;
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struct input_dev *dev;
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int bads;
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int reads;
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struct guillemot_type *type;
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unsigned char length;
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char phys[32];
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};
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static struct guillemot_type guillemot_type[] = {
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{ 0x00, guillemot_abs_pad, guillemot_btn_pad, 1, "Guillemot Pad" },
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{ 0 }};
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/*
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* guillemot_read_packet() reads Guillemot joystick data.
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*/
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static int guillemot_read_packet(struct gameport *gameport, u8 *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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for (i = 0; i < GUILLEMOT_MAX_LENGTH; i++)
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data[i] = 0;
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i = 0;
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t = gameport_time(gameport, GUILLEMOT_MAX_START);
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s = gameport_time(gameport, GUILLEMOT_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 < GUILLEMOT_MAX_LENGTH * 8) {
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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 >> 3] |= ((v >> 5) & 1) << (i & 7);
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i++;
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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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* guillemot_poll() reads and analyzes Guillemot joystick data.
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*/
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static void guillemot_poll(struct gameport *gameport)
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{
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struct guillemot *guillemot = gameport_get_drvdata(gameport);
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struct input_dev *dev = guillemot->dev;
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u8 data[GUILLEMOT_MAX_LENGTH];
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int i;
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guillemot->reads++;
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if (guillemot_read_packet(guillemot->gameport, data) != GUILLEMOT_MAX_LENGTH * 8 ||
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data[0] != 0x55 || data[16] != 0xaa) {
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guillemot->bads++;
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} else {
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for (i = 0; i < 6 && guillemot->type->abs[i] >= 0; i++)
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input_report_abs(dev, guillemot->type->abs[i], data[i + 5]);
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if (guillemot->type->hat) {
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input_report_abs(dev, ABS_HAT0X, guillemot_hat_to_axis[data[4] >> 4].x);
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input_report_abs(dev, ABS_HAT0Y, guillemot_hat_to_axis[data[4] >> 4].y);
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}
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for (i = 0; i < 16 && guillemot->type->btn[i] >= 0; i++)
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input_report_key(dev, guillemot->type->btn[i], (data[2 + (i >> 3)] >> (i & 7)) & 1);
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}
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input_sync(dev);
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}
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/*
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* guillemot_open() is a callback from the input open routine.
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*/
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static int guillemot_open(struct input_dev *dev)
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{
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struct guillemot *guillemot = dev->private;
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gameport_start_polling(guillemot->gameport);
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return 0;
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}
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/*
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* guillemot_close() is a callback from the input close routine.
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*/
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static void guillemot_close(struct input_dev *dev)
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{
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struct guillemot *guillemot = dev->private;
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gameport_stop_polling(guillemot->gameport);
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}
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/*
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* guillemot_connect() probes for Guillemot joysticks.
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*/
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static int guillemot_connect(struct gameport *gameport, struct gameport_driver *drv)
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{
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struct guillemot *guillemot;
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struct input_dev *input_dev;
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u8 data[GUILLEMOT_MAX_LENGTH];
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int i, t;
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int err;
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guillemot = kzalloc(sizeof(struct guillemot), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!guillemot || !input_dev) {
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err = -ENOMEM;
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goto fail1;
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}
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guillemot->gameport = gameport;
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guillemot->dev = input_dev;
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gameport_set_drvdata(gameport, guillemot);
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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 = guillemot_read_packet(gameport, data);
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if (i != GUILLEMOT_MAX_LENGTH * 8 || data[0] != 0x55 || data[16] != 0xaa) {
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err = -ENODEV;
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goto fail2;
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}
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for (i = 0; guillemot_type[i].name; i++)
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if (guillemot_type[i].id == data[11])
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break;
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if (!guillemot_type[i].name) {
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printk(KERN_WARNING "guillemot.c: Unknown joystick on %s. [ %02x%02x:%04x, ver %d.%02d ]\n",
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gameport->phys, data[12], data[13], data[11], data[14], data[15]);
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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, guillemot_poll);
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gameport_set_poll_interval(gameport, 20);
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sprintf(guillemot->phys, "%s/input0", gameport->phys);
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guillemot->type = guillemot_type + i;
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input_dev->name = guillemot_type[i].name;
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input_dev->phys = guillemot->phys;
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input_dev->id.bustype = BUS_GAMEPORT;
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input_dev->id.vendor = GAMEPORT_ID_VENDOR_GUILLEMOT;
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input_dev->id.product = guillemot_type[i].id;
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input_dev->id.version = (int)data[14] << 8 | data[15];
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input_dev->cdev.dev = &gameport->dev;
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input_dev->private = guillemot;
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input_dev->open = guillemot_open;
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input_dev->close = guillemot_close;
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input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
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for (i = 0; (t = guillemot->type->abs[i]) >= 0; i++)
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input_set_abs_params(input_dev, t, 0, 255, 0, 0);
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if (guillemot->type->hat) {
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input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
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input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
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}
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for (i = 0; (t = guillemot->type->btn[i]) >= 0; i++)
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set_bit(t, input_dev->keybit);
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input_register_device(guillemot->dev);
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return 0;
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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(guillemot);
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return err;
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}
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static void guillemot_disconnect(struct gameport *gameport)
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{
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struct guillemot *guillemot = gameport_get_drvdata(gameport);
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printk(KERN_INFO "guillemot.c: Failed %d reads out of %d on %s\n", guillemot->reads, guillemot->bads, guillemot->phys);
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input_unregister_device(guillemot->dev);
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gameport_close(gameport);
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kfree(guillemot);
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}
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static struct gameport_driver guillemot_drv = {
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.driver = {
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.name = "guillemot",
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},
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.description = DRIVER_DESC,
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.connect = guillemot_connect,
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.disconnect = guillemot_disconnect,
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};
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static int __init guillemot_init(void)
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{
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gameport_register_driver(&guillemot_drv);
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return 0;
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}
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static void __exit guillemot_exit(void)
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{
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gameport_unregister_driver(&guillemot_drv);
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}
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module_init(guillemot_init);
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module_exit(guillemot_exit);
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