David Kiliani | 3fedd14 | 2008-11-01 00:39:12 +0100 | [diff] [blame] | 1 | /** |
| 2 | * @file me0900_device.c |
| 3 | * |
| 4 | * @brief ME-9x device class implementation. |
| 5 | * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| 6 | * @author Guenter Gebhardt |
| 7 | * @author Krzysztof Gantzke (k.gantzke@meilhaus.de) |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| 12 | * |
| 13 | * This file is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 26 | */ |
| 27 | |
| 28 | #ifndef __KERNEL__ |
| 29 | # define __KERNEL__ |
| 30 | #endif |
| 31 | |
| 32 | #ifndef MODULE |
| 33 | # define MODULE |
| 34 | #endif |
| 35 | |
| 36 | #include <linux/module.h> |
| 37 | |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/slab.h> |
| 40 | |
| 41 | #include "meids.h" |
| 42 | #include "meerror.h" |
| 43 | #include "mecommon.h" |
| 44 | #include "meinternal.h" |
| 45 | |
| 46 | #include "medebug.h" |
| 47 | #include "medevice.h" |
| 48 | #include "me0900_device.h" |
| 49 | #include "me0900_reg.h" |
| 50 | #include "mesubdevice.h" |
| 51 | #include "me0900_do.h" |
| 52 | #include "me0900_di.h" |
| 53 | |
| 54 | me_device_t *me0900_pci_constructor(struct pci_dev *pci_device) |
| 55 | { |
| 56 | me0900_device_t *me0900_device; |
| 57 | me_subdevice_t *subdevice; |
| 58 | unsigned int version_idx; |
| 59 | int err; |
| 60 | int i; |
| 61 | int port_shift; |
| 62 | |
| 63 | PDEBUG("executed.\n"); |
| 64 | |
| 65 | // Allocate structure for device instance. |
| 66 | me0900_device = kmalloc(sizeof(me0900_device_t), GFP_KERNEL); |
| 67 | |
| 68 | if (!me0900_device) { |
| 69 | PERROR("Cannot get memory for device instance.\n"); |
| 70 | return NULL; |
| 71 | } |
| 72 | |
| 73 | memset(me0900_device, 0, sizeof(me0900_device_t)); |
| 74 | |
| 75 | // Initialize base class structure. |
| 76 | err = me_device_pci_init((me_device_t *) me0900_device, pci_device); |
| 77 | |
| 78 | if (err) { |
| 79 | kfree(me0900_device); |
| 80 | PERROR("Cannot initialize device base class.\n"); |
| 81 | return NULL; |
| 82 | } |
| 83 | |
| 84 | /* Get the index in the device version information table. */ |
| 85 | version_idx = |
| 86 | me0900_versions_get_device_index(me0900_device->base.info.pci. |
| 87 | device_id); |
| 88 | |
| 89 | /* Initialize 8255 chip to desired mode */ |
| 90 | if (me0900_device->base.info.pci.device_id == |
| 91 | PCI_DEVICE_ID_MEILHAUS_ME0940) { |
| 92 | outb(0x9B, |
| 93 | me0900_device->base.info.pci.reg_bases[2] + |
| 94 | ME0900_CTRL_REG); |
| 95 | } else if (me0900_device->base.info.pci.device_id == |
| 96 | PCI_DEVICE_ID_MEILHAUS_ME0950) { |
| 97 | outb(0x89, |
| 98 | me0900_device->base.info.pci.reg_bases[2] + |
| 99 | ME0900_CTRL_REG); |
| 100 | outb(0x00, |
| 101 | me0900_device->base.info.pci.reg_bases[2] + |
| 102 | ME0900_WRITE_ENABLE_REG); |
| 103 | } else if (me0900_device->base.info.pci.device_id == |
| 104 | PCI_DEVICE_ID_MEILHAUS_ME0960) { |
| 105 | outb(0x8B, |
| 106 | me0900_device->base.info.pci.reg_bases[2] + |
| 107 | ME0900_CTRL_REG); |
| 108 | outb(0x00, |
| 109 | me0900_device->base.info.pci.reg_bases[2] + |
| 110 | ME0900_WRITE_ENABLE_REG); |
| 111 | } |
| 112 | |
| 113 | port_shift = |
| 114 | (me0900_device->base.info.pci.device_id == |
| 115 | PCI_DEVICE_ID_MEILHAUS_ME0960) ? 1 : 0; |
| 116 | // Create subdevice instances. |
| 117 | |
| 118 | for (i = 0; i < me0900_versions[version_idx].di_subdevices; i++) { |
| 119 | subdevice = |
| 120 | (me_subdevice_t *) me0900_di_constructor(me0900_device-> |
| 121 | base.info.pci. |
| 122 | reg_bases[2], |
| 123 | i + port_shift); |
| 124 | |
| 125 | if (!subdevice) { |
| 126 | me_device_deinit((me_device_t *) me0900_device); |
| 127 | kfree(me0900_device); |
| 128 | PERROR("Cannot get memory for subdevice.\n"); |
| 129 | return NULL; |
| 130 | } |
| 131 | |
| 132 | me_slist_add_subdevice_tail(&me0900_device->base.slist, |
| 133 | subdevice); |
| 134 | } |
| 135 | |
| 136 | for (i = 0; i < me0900_versions[version_idx].do_subdevices; i++) { |
| 137 | subdevice = |
| 138 | (me_subdevice_t *) me0900_do_constructor(me0900_device-> |
| 139 | base.info.pci. |
| 140 | reg_bases[2], i); |
| 141 | |
| 142 | if (!subdevice) { |
| 143 | me_device_deinit((me_device_t *) me0900_device); |
| 144 | kfree(me0900_device); |
| 145 | PERROR("Cannot get memory for subdevice.\n"); |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | me_slist_add_subdevice_tail(&me0900_device->base.slist, |
| 150 | subdevice); |
| 151 | } |
| 152 | |
| 153 | return (me_device_t *) me0900_device; |
| 154 | } |
| 155 | |
| 156 | // Init and exit of module. |
| 157 | |
| 158 | static int __init me0900_init(void) |
| 159 | { |
| 160 | PDEBUG("executed.\n."); |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | static void __exit me0900_exit(void) |
| 165 | { |
| 166 | PDEBUG("executed.\n."); |
| 167 | } |
| 168 | |
| 169 | module_init(me0900_init); |
| 170 | module_exit(me0900_exit); |
| 171 | |
| 172 | // Administrative stuff for modinfo. |
| 173 | MODULE_AUTHOR |
| 174 | ("Guenter Gebhardt <g.gebhardt@meilhaus.de> & Krzysztof Gantzke <k.gantzke@meilhaus.de>"); |
| 175 | MODULE_DESCRIPTION("Device Driver Module for ME-9x Device"); |
| 176 | MODULE_SUPPORTED_DEVICE("Meilhaus ME-9x Devices"); |
| 177 | MODULE_LICENSE("GPL"); |
| 178 | |
| 179 | // Export the constructor. |
| 180 | EXPORT_SYMBOL(me0900_pci_constructor); |