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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* FM801 gameport driver for Linux
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*
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* Copyright (c) by Takashi Iwai <tiwai@suse.de>
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*/
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/gameport.h>
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#define PCI_VENDOR_ID_FORTEMEDIA 0x1319
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#define PCI_DEVICE_ID_FM801_GP 0x0802
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#define HAVE_COOKED
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struct fm801_gp {
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struct gameport *gameport;
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struct resource *res_port;
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};
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#ifdef HAVE_COOKED
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static int fm801_gp_cooked_read(struct gameport *gameport, int *axes, int *buttons)
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{
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unsigned short w;
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w = inw(gameport->io + 2);
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*buttons = (~w >> 14) & 0x03;
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axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
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w = inw(gameport->io + 4);
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axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
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w = inw(gameport->io + 6);
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*buttons |= ((~w >> 14) & 0x03) << 2;
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axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
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w = inw(gameport->io + 8);
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axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
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outw(0xff, gameport->io); /* reset */
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return 0;
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}
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#endif
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static int fm801_gp_open(struct gameport *gameport, int mode)
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{
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switch (mode) {
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#ifdef HAVE_COOKED
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case GAMEPORT_MODE_COOKED:
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return 0;
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#endif
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case GAMEPORT_MODE_RAW:
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return 0;
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default:
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return -1;
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}
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return 0;
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}
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static int fm801_gp_probe(struct pci_dev *pci, const struct pci_device_id *id)
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{
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struct fm801_gp *gp;
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struct gameport *port;
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int error;
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gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
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port = gameport_allocate_port();
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if (!gp || !port) {
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printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
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error = -ENOMEM;
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goto err_out_free;
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}
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error = pci_enable_device(pci);
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if (error)
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goto err_out_free;
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port->open = fm801_gp_open;
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#ifdef HAVE_COOKED
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port->cooked_read = fm801_gp_cooked_read;
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#endif
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gameport_set_name(port, "FM801");
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gameport_set_phys(port, "pci%s/gameport0", pci_name(pci));
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port->dev.parent = &pci->dev;
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port->io = pci_resource_start(pci, 0);
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gp->gameport = port;
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gp->res_port = request_region(port->io, 0x10, "FM801 GP");
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if (!gp->res_port) {
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printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
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port->io, port->io + 0x0f);
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error = -EBUSY;
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goto err_out_disable_dev;
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}
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pci_set_drvdata(pci, gp);
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outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */
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gameport_register_port(port);
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return 0;
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err_out_disable_dev:
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pci_disable_device(pci);
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err_out_free:
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gameport_free_port(port);
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kfree(gp);
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return error;
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}
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static void fm801_gp_remove(struct pci_dev *pci)
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{
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struct fm801_gp *gp = pci_get_drvdata(pci);
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gameport_unregister_port(gp->gameport);
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release_resource(gp->res_port);
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kfree(gp);
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pci_disable_device(pci);
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}
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static const struct pci_device_id fm801_gp_id_table[] = {
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{ PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);
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static struct pci_driver fm801_gp_driver = {
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.name = "FM801_gameport",
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.id_table = fm801_gp_id_table,
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.probe = fm801_gp_probe,
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.remove = fm801_gp_remove,
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};
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module_pci_driver(fm801_gp_driver);
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MODULE_DESCRIPTION("FM801 gameport driver");
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MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
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MODULE_LICENSE("GPL");
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