| /** |
| * @file me6000_device.c |
| * |
| * @brief Device class template implementation. |
| * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de) |
| * @author Guenter Gebhardt |
| * @author Krzysztof Gantzke (k.gantzke@meilhaus.de) |
| */ |
| |
| /* |
| * 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 "mefirmware.h" |
| |
| #include "mesubdevice.h" |
| #include "medebug.h" |
| #include "medevice.h" |
| #include "me6000_reg.h" |
| #include "me6000_device.h" |
| #include "meplx_reg.h" |
| #include "me6000_dio.h" |
| #include "me6000_ao.h" |
| |
| /** |
| * @brief Global variable. |
| * This is working queue for runing a separate atask that will be responsible for work status (start, stop, timeouts). |
| */ |
| static struct workqueue_struct *me6000_workqueue; |
| |
| me_device_t *me6000_pci_constructor(struct pci_dev *pci_device) |
| { |
| me6000_device_t *me6000_device; |
| me_subdevice_t *subdevice; |
| unsigned int version_idx; |
| int err; |
| int i; |
| int high_range = 0; |
| int fifo; |
| |
| PDEBUG("executed.\n"); |
| |
| // Allocate structure for device instance. |
| me6000_device = kmalloc(sizeof(me6000_device_t), GFP_KERNEL); |
| |
| if (!me6000_device) { |
| PERROR("Cannot get memory for device instance.\n"); |
| return NULL; |
| } |
| |
| memset(me6000_device, 0, sizeof(me6000_device_t)); |
| |
| // Initialize base class structure. |
| err = me_device_pci_init((me_device_t *) me6000_device, pci_device); |
| |
| if (err) { |
| kfree(me6000_device); |
| PERROR("Cannot initialize device base class.\n"); |
| return NULL; |
| } |
| |
| /* Download the xilinx firmware */ |
| err = me_xilinx_download(me6000_device->base.info.pci.reg_bases[1], |
| me6000_device->base.info.pci.reg_bases[2], |
| &pci_device->dev, "me6000.bin"); |
| |
| if (err) { |
| me_device_deinit((me_device_t *) me6000_device); |
| kfree(me6000_device); |
| PERROR("Can't download firmware.\n"); |
| return NULL; |
| } |
| |
| /* Get the index in the device version information table. */ |
| version_idx = |
| me6000_versions_get_device_index(me6000_device->base.info.pci. |
| device_id); |
| |
| // Initialize spin lock . |
| spin_lock_init(&me6000_device->preload_reg_lock); |
| spin_lock_init(&me6000_device->dio_ctrl_reg_lock); |
| |
| /* Create digital input/output instances. */ |
| for (i = 0; i < me6000_versions[version_idx].dio_subdevices; i++) { |
| subdevice = |
| (me_subdevice_t *) me6000_dio_constructor(me6000_device-> |
| base.info.pci. |
| reg_bases[3], i, |
| &me6000_device-> |
| dio_ctrl_reg_lock); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) me6000_device); |
| kfree(me6000_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&me6000_device->base.slist, |
| subdevice); |
| } |
| |
| /* Create analog output instances. */ |
| for (i = 0; i < me6000_versions[version_idx].ao_subdevices; i++) { |
| high_range = ((i == 8) |
| && |
| ((me6000_device->base.info.pci.device_id == |
| PCI_DEVICE_ID_MEILHAUS_ME6359) |
| || (me6000_device->base.info.pci.device_id == |
| PCI_DEVICE_ID_MEILHAUS_ME6259) |
| ) |
| )? 1 : 0; |
| |
| fifo = |
| (i < |
| me6000_versions[version_idx]. |
| ao_fifo) ? ME6000_AO_HAS_FIFO : 0x0; |
| fifo |= (i < 4) ? ME6000_AO_EXTRA_HARDWARE : 0x0; |
| |
| subdevice = |
| (me_subdevice_t *) me6000_ao_constructor(me6000_device-> |
| base.info.pci. |
| reg_bases[2], |
| &me6000_device-> |
| preload_reg_lock, |
| &me6000_device-> |
| preload_flags, |
| &me6000_device-> |
| triggering_flags, |
| i, fifo, |
| me6000_device-> |
| base.irq, |
| high_range, |
| me6000_workqueue); |
| |
| if (!subdevice) { |
| me_device_deinit((me_device_t *) me6000_device); |
| kfree(me6000_device); |
| PERROR("Cannot get memory for subdevice.\n"); |
| return NULL; |
| } |
| |
| me_slist_add_subdevice_tail(&me6000_device->base.slist, |
| subdevice); |
| } |
| |
| return (me_device_t *) me6000_device; |
| } |
| EXPORT_SYMBOL(me6000_pci_constructor); |
| |
| // Init and exit of module. |
| |
| static int __init me6000_init(void) |
| { |
| PDEBUG("executed.\n"); |
| |
| me6000_workqueue = create_singlethread_workqueue("me6000"); |
| return 0; |
| } |
| |
| static void __exit me6000_exit(void) |
| { |
| PDEBUG("executed.\n"); |
| |
| flush_workqueue(me6000_workqueue); |
| destroy_workqueue(me6000_workqueue); |
| } |
| |
| module_init(me6000_init); |
| module_exit(me6000_exit); |
| |
| // Administrative stuff for modinfo. |
| MODULE_AUTHOR |
| ("Guenter Gebhardt <g.gebhardt@meilhaus.de> & Krzysztof Gantzke <k.gantzke@meilhaus.de>"); |
| MODULE_DESCRIPTION("Device Driver Module for ME-6000 Device"); |
| MODULE_SUPPORTED_DEVICE("Meilhaus ME-6000 Devices"); |
| MODULE_LICENSE("GPL"); |