1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2001 Vojtech Pavlik 4 */ 5 6 /* 7 * EMU10k1 - SB Live / Audigy - gameport driver for Linux 8 */ 9 10 #include <asm/io.h> 11 12 #include <linux/module.h> 13 #include <linux/ioport.h> 14 #include <linux/gameport.h> 15 #include <linux/slab.h> 16 #include <linux/pci.h> 17 18 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 19 MODULE_DESCRIPTION("EMU10k1 gameport driver"); 20 MODULE_LICENSE("GPL"); 21 22 struct emu { 23 struct pci_dev *dev; 24 struct gameport *gameport; 25 int io; 26 int size; 27 }; 28 29 static const struct pci_device_id emu_tbl[] = { 30 31 { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */ 32 { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */ 33 { 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */ 34 { 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */ 35 { 0, } 36 }; 37 38 MODULE_DEVICE_TABLE(pci, emu_tbl); 39 40 static int emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 41 { 42 struct emu *emu; 43 struct gameport *port; 44 int error; 45 46 emu = kzalloc(sizeof(*emu), GFP_KERNEL); 47 port = gameport_allocate_port(); 48 if (!emu || !port) { 49 printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n"); 50 error = -ENOMEM; 51 goto err_out_free; 52 } 53 54 error = pci_enable_device(pdev); 55 if (error) 56 goto err_out_free; 57 58 emu->io = pci_resource_start(pdev, 0); 59 emu->size = pci_resource_len(pdev, 0); 60 61 emu->dev = pdev; 62 emu->gameport = port; 63 64 gameport_set_name(port, "EMU10K1"); 65 gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev)); 66 port->dev.parent = &pdev->dev; 67 port->io = emu->io; 68 69 if (!request_region(emu->io, emu->size, "emu10k1-gp")) { 70 printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n", 71 emu->io, emu->io + emu->size - 1); 72 error = -EBUSY; 73 goto err_out_disable_dev; 74 } 75 76 pci_set_drvdata(pdev, emu); 77 78 gameport_register_port(port); 79 80 return 0; 81 82 err_out_disable_dev: 83 pci_disable_device(pdev); 84 err_out_free: 85 gameport_free_port(port); 86 kfree(emu); 87 return error; 88 } 89 90 static void emu_remove(struct pci_dev *pdev) 91 { 92 struct emu *emu = pci_get_drvdata(pdev); 93 94 gameport_unregister_port(emu->gameport); 95 release_region(emu->io, emu->size); 96 kfree(emu); 97 98 pci_disable_device(pdev); 99 } 100 101 static struct pci_driver emu_driver = { 102 .name = "Emu10k1_gameport", 103 .id_table = emu_tbl, 104 .probe = emu_probe, 105 .remove = emu_remove, 106 }; 107 108 module_pci_driver(emu_driver); 109