| /** |
| * @file metempl_device.c |
| * |
| * @brief template device class implementation. |
| * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| * @author Guenter Gebhardt |
| */ |
| |
| /* |
| * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| * |
| * This file 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. |
| */ |
| |
| #ifndef __KERNEL__ |
| # define __KERNEL__ |
| #endif |
| |
| #ifndef MODULE |
| # define MODULE |
| #endif |
| |
| #include <linux/module.h> |
| |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| |
| #include <meids.h> |
| #include "meerror.h" |
| #include "mecommon.h" |
| #include "meinternal.h" |
| |
| #include "medebug.h" |
| #include "medevice.h" |
| #include "metempl_device.h" |
| #include "mesubdevice.h" |
| #include "metempl_sub.h" |
| |
| me_device_t *metempl_pci_constructor(struct pci_dev *pci_device) |
| { |
| metempl_device_t *metempl_device; |
| me_subdevice_t *subdevice; |
| unsigned int version_idx; |
| int err; |
| int i; |
| |
| PDEBUG("executed.\n"); |
| |
| // Allocate structure for device instance. |
| metempl_device = kmalloc(sizeof(metempl_device_t), GFP_KERNEL); |
| |
| if (!metempl_device) { |
| PERROR("Cannot get memory for device instance.\n"); |
| return NULL; |
| } |
| |
| memset(metempl_device, 0, sizeof(metempl_device_t)); |
| |
| // Initialize base class structure. |
| err = me_device_pci_init((me_device_t *) metempl_device, pci_device); |
| |
| if (err) { |
| kfree(metempl_device); |
| PERROR("Cannot initialize device base class.\n"); |
| return NULL; |
| } |
| |
| /* Get the index in the device version information table. */ |
| version_idx = |
| metempl_versions_get_device_index(metempl_device->base.info.pci. |
| device_id); |
| |
| // Initialize spin lock . |
| spin_lock_init(&metempl_device->ctrl_reg_lock); |
| |
| // Create subdevice instances. |
| for (i = 0; i < metempl_versions[version_idx].subdevices; i++) { |
| subdevice = |
| (me_subdevice_t *) metempl_sub_constructor(metempl_device-> |
| base.info.pci. |
| reg_bases[2], i, |
| &metempl_device-> |
| ctrl_reg_lock); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) metempl_device); |
| kfree(metempl_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&metempl_device->base.slist, |
| subdevice); |
| } |
| |
| /* Overwrite base class methods if applicable. */ |
| |
| return (me_device_t *) metempl_device; |
| } |
| EXPORT_SYMBOL(metempl_pci_constructor); |
| |
| // Init and exit of module. |
| |
| static int __init metempl_init(void) |
| { |
| PDEBUG("executed.\n."); |
| return 0; |
| } |
| |
| static void __exit metempl_exit(void) |
| { |
| PDEBUG("executed.\n."); |
| } |
| |
| module_init(metempl_init); |
| |
| module_exit(metempl_exit); |
| |
| // Administrative stuff for modinfo. |
| MODULE_AUTHOR("Guenter Gebhardt <g.gebhardt@meilhaus.de>"); |
| MODULE_DESCRIPTION("Device Driver Module for Template Device"); |
| MODULE_SUPPORTED_DEVICE("Meilhaus Template Devices"); |
| MODULE_LICENSE("GPL"); |