| /** |
| * @file me8100_device.c |
| * |
| * @brief ME-8100 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 "me8100_device.h" |
| #include "mesubdevice.h" |
| #include "me8100_di.h" |
| #include "me8100_do.h" |
| #include "me8254.h" |
| |
| me_device_t *me8100_pci_constructor(struct pci_dev *pci_device) |
| { |
| me8100_device_t *me8100_device; |
| me_subdevice_t *subdevice; |
| unsigned int version_idx; |
| int err; |
| int i; |
| |
| PDEBUG("executed.\n"); |
| |
| // Allocate structure for device instance. |
| me8100_device = kmalloc(sizeof(me8100_device_t), GFP_KERNEL); |
| |
| if (!me8100_device) { |
| PERROR("Cannot get memory for device instance.\n"); |
| return NULL; |
| } |
| |
| memset(me8100_device, 0, sizeof(me8100_device_t)); |
| |
| // Initialize base class structure. |
| err = me_device_pci_init((me_device_t *) me8100_device, pci_device); |
| |
| if (err) { |
| kfree(me8100_device); |
| PERROR("Cannot initialize device base class.\n"); |
| return NULL; |
| } |
| |
| /* Get the index in the device version information table. */ |
| version_idx = |
| me8100_versions_get_device_index(me8100_device->base.info.pci. |
| device_id); |
| |
| // Initialize spin lock . |
| spin_lock_init(&me8100_device->dio_ctrl_reg_lock); |
| spin_lock_init(&me8100_device->ctr_ctrl_reg_lock); |
| spin_lock_init(&me8100_device->clk_src_reg_lock); |
| |
| // Create subdevice instances. |
| |
| for (i = 0; i < me8100_versions[version_idx].di_subdevices; i++) { |
| subdevice = |
| (me_subdevice_t *) me8100_di_constructor(me8100_device-> |
| base.info.pci. |
| reg_bases[2], |
| me8100_device-> |
| base.info.pci. |
| reg_bases[1], i, |
| me8100_device-> |
| base.irq, |
| &me8100_device-> |
| dio_ctrl_reg_lock); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) me8100_device); |
| kfree(me8100_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&me8100_device->base.slist, |
| subdevice); |
| } |
| |
| for (i = 0; i < me8100_versions[version_idx].do_subdevices; i++) { |
| subdevice = |
| (me_subdevice_t *) me8100_do_constructor(me8100_device-> |
| base.info.pci. |
| reg_bases[2], i, |
| &me8100_device-> |
| dio_ctrl_reg_lock); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) me8100_device); |
| kfree(me8100_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&me8100_device->base.slist, |
| subdevice); |
| } |
| |
| for (i = 0; i < me8100_versions[version_idx].ctr_subdevices; i++) { |
| subdevice = |
| (me_subdevice_t *) me8254_constructor(me8100_device->base. |
| info.pci.device_id, |
| me8100_device->base. |
| info.pci.reg_bases[2], |
| 0, i, |
| &me8100_device-> |
| ctr_ctrl_reg_lock, |
| &me8100_device-> |
| clk_src_reg_lock); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) me8100_device); |
| kfree(me8100_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&me8100_device->base.slist, |
| subdevice); |
| } |
| |
| return (me_device_t *) me8100_device; |
| } |
| EXPORT_SYMBOL(me8100_pci_constructor); |
| |
| // Init and exit of module. |
| |
| static int __init me8100_init(void) |
| { |
| PDEBUG("executed.\n."); |
| return ME_ERRNO_SUCCESS; |
| } |
| |
| static void __exit me8100_exit(void) |
| { |
| PDEBUG("executed.\n."); |
| } |
| |
| module_init(me8100_init); |
| |
| module_exit(me8100_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"); |