Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * FM801 gameport driver for Linux |
| 3 | * |
| 4 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <asm/io.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/errno.h> |
| 26 | #include <linux/ioport.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/pci.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/gameport.h> |
| 33 | |
| 34 | #define PCI_VENDOR_ID_FORTEMEDIA 0x1319 |
| 35 | #define PCI_DEVICE_ID_FM801_GP 0x0802 |
| 36 | |
| 37 | #define HAVE_COOKED |
| 38 | |
| 39 | struct fm801_gp { |
| 40 | struct gameport *gameport; |
| 41 | struct resource *res_port; |
| 42 | }; |
| 43 | |
| 44 | #ifdef HAVE_COOKED |
| 45 | static int fm801_gp_cooked_read(struct gameport *gameport, int *axes, int *buttons) |
| 46 | { |
| 47 | unsigned short w; |
| 48 | |
| 49 | w = inw(gameport->io + 2); |
| 50 | *buttons = (~w >> 14) & 0x03; |
| 51 | axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); |
| 52 | w = inw(gameport->io + 4); |
| 53 | axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); |
| 54 | w = inw(gameport->io + 6); |
| 55 | *buttons |= ((~w >> 14) & 0x03) << 2; |
| 56 | axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); |
| 57 | w = inw(gameport->io + 8); |
| 58 | axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5); |
| 59 | outw(0xff, gameport->io); /* reset */ |
| 60 | |
| 61 | return 0; |
| 62 | } |
| 63 | #endif |
| 64 | |
| 65 | static int fm801_gp_open(struct gameport *gameport, int mode) |
| 66 | { |
| 67 | switch (mode) { |
| 68 | #ifdef HAVE_COOKED |
| 69 | case GAMEPORT_MODE_COOKED: |
| 70 | return 0; |
| 71 | #endif |
| 72 | case GAMEPORT_MODE_RAW: |
| 73 | return 0; |
| 74 | default: |
| 75 | return -1; |
| 76 | } |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device_id *id) |
| 82 | { |
| 83 | struct fm801_gp *gp; |
| 84 | struct gameport *port; |
Jeff Garzik | b435fdc | 2006-10-12 01:06:53 -0400 | [diff] [blame] | 85 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Pekka Enberg | a97e148 | 2005-09-06 15:18:33 -0700 | [diff] [blame] | 87 | gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | port = gameport_allocate_port(); |
| 89 | if (!gp || !port) { |
| 90 | printk(KERN_ERR "fm801-gp: Memory allocation failed\n"); |
Jeff Garzik | b435fdc | 2006-10-12 01:06:53 -0400 | [diff] [blame] | 91 | error = -ENOMEM; |
| 92 | goto err_out_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | } |
| 94 | |
Jeff Garzik | b435fdc | 2006-10-12 01:06:53 -0400 | [diff] [blame] | 95 | error = pci_enable_device(pci); |
| 96 | if (error) |
| 97 | goto err_out_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | port->open = fm801_gp_open; |
| 100 | #ifdef HAVE_COOKED |
| 101 | port->cooked_read = fm801_gp_cooked_read; |
| 102 | #endif |
| 103 | gameport_set_name(port, "FM801"); |
| 104 | gameport_set_phys(port, "pci%s/gameport0", pci_name(pci)); |
| 105 | port->dev.parent = &pci->dev; |
| 106 | port->io = pci_resource_start(pci, 0); |
| 107 | |
| 108 | gp->gameport = port; |
| 109 | gp->res_port = request_region(port->io, 0x10, "FM801 GP"); |
| 110 | if (!gp->res_port) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n", |
| 112 | port->io, port->io + 0x0f); |
Jeff Garzik | b435fdc | 2006-10-12 01:06:53 -0400 | [diff] [blame] | 113 | error = -EBUSY; |
| 114 | goto err_out_disable_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | pci_set_drvdata(pci, gp); |
| 118 | |
| 119 | outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */ |
| 120 | gameport_register_port(port); |
| 121 | |
| 122 | return 0; |
Jeff Garzik | b435fdc | 2006-10-12 01:06:53 -0400 | [diff] [blame] | 123 | |
| 124 | err_out_disable_dev: |
| 125 | pci_disable_device(pci); |
| 126 | err_out_free: |
| 127 | gameport_free_port(port); |
| 128 | kfree(gp); |
| 129 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | static void __devexit fm801_gp_remove(struct pci_dev *pci) |
| 133 | { |
| 134 | struct fm801_gp *gp = pci_get_drvdata(pci); |
| 135 | |
Dmitry Torokhov | d345d97 | 2010-09-29 18:17:16 -0700 | [diff] [blame^] | 136 | gameport_unregister_port(gp->gameport); |
| 137 | release_resource(gp->res_port); |
| 138 | kfree(gp); |
| 139 | |
| 140 | pci_disable_device(pci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Márton Németh | a9844b1 | 2010-01-09 23:23:58 -0800 | [diff] [blame] | 143 | static const struct pci_device_id fm801_gp_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| 145 | { 0 } |
| 146 | }; |
| 147 | |
| 148 | static struct pci_driver fm801_gp_driver = { |
| 149 | .name = "FM801_gameport", |
| 150 | .id_table = fm801_gp_id_table, |
| 151 | .probe = fm801_gp_probe, |
| 152 | .remove = __devexit_p(fm801_gp_remove), |
| 153 | }; |
| 154 | |
| 155 | static int __init fm801_gp_init(void) |
| 156 | { |
| 157 | return pci_register_driver(&fm801_gp_driver); |
| 158 | } |
| 159 | |
| 160 | static void __exit fm801_gp_exit(void) |
| 161 | { |
| 162 | pci_unregister_driver(&fm801_gp_driver); |
| 163 | } |
| 164 | |
| 165 | module_init(fm801_gp_init); |
| 166 | module_exit(fm801_gp_exit); |
| 167 | |
| 168 | MODULE_DEVICE_TABLE(pci, fm801_gp_id_table); |
| 169 | |
Dmitry Torokhov | f445da8 | 2009-04-17 20:35:57 -0700 | [diff] [blame] | 170 | MODULE_DESCRIPTION("FM801 gameport driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); |
| 172 | MODULE_LICENSE("GPL"); |