/* * FM801 gameport driver for Linux * * Copyright (c) by Takashi Iwai <tiwai@suse.de> * * * 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. * */ #include <asm/io.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/ioport.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/gameport.h> #define PCI_VENDOR_ID_FORTEMEDIA 0x1319 #define PCI_DEVICE_ID_FM801_GP 0x0802 #define HAVE_COOKED struct fm801_gp { struct gameport *gameport; struct resource *res_port; }; #ifdef HAVE_COOKED static int fm801_gp_cooked_read(struct gameport *gameport, int *axes, int *buttons) { unsigned short w; w = inw(gameport->io + 2); *buttons = (~w >> 14) & 0x03; axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); w = inw(gameport->io + 4); axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); w = inw(gameport->io + 6); *buttons |= ((~w >> 14) & 0x03) << 2; axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); w = inw(gameport->io + 8); axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); outw(0xff, gameport->io); /* reset */ return 0; } #endif static int fm801_gp_open(struct gameport *gameport, int mode) { switch (mode) { #ifdef HAVE_COOKED case GAMEPORT_MODE_COOKED: return 0; #endif case GAMEPORT_MODE_RAW: return 0; default: return -1; } return 0; } static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device_id *id) { struct fm801_gp *gp; struct gameport *port; gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL); port = gameport_allocate_port(); if (!gp || !port) { printk(KERN_ERR "fm801-gp: Memory allocation failed\n"); kfree(gp); gameport_free_port(port); return -ENOMEM; } pci_enable_device(pci); port->open = fm801_gp_open; #ifdef HAVE_COOKED port->cooked_read = fm801_gp_cooked_read; #endif gameport_set_name(port, "FM801"); gameport_set_phys(port, "pci%s/gameport0", pci_name(pci)); port->dev.parent = &pci->dev; port->io = pci_resource_start(pci, 0); gp->gameport = port; gp->res_port = request_region(port->io, 0x10, "FM801 GP"); if (!gp->res_port) { printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n", port->io, port->io + 0x0f); gameport_free_port(port); kfree(gp); return -EBUSY; } pci_set_drvdata(pci, gp); outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */ gameport_register_port(port); return 0; } static void __devexit fm801_gp_remove(struct pci_dev *pci) { struct fm801_gp *gp = pci_get_drvdata(pci); if (gp) { gameport_unregister_port(gp->gameport); release_resource(gp->res_port); kfree(gp); } } static struct pci_device_id fm801_gp_id_table[] = { { PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, { 0 } }; static struct pci_driver fm801_gp_driver = { .name = "FM801_gameport", .id_table = fm801_gp_id_table, .probe = fm801_gp_probe, .remove = __devexit_p(fm801_gp_remove), }; static int __init fm801_gp_init(void) { return pci_register_driver(&fm801_gp_driver); } static void __exit fm801_gp_exit(void) { pci_unregister_driver(&fm801_gp_driver); } module_init(fm801_gp_init); module_exit(fm801_gp_exit); MODULE_DEVICE_TABLE(pci, fm801_gp_id_table); MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); MODULE_LICENSE("GPL");