![Alexander Beregalov](/assets/img/avatar_default.png)
Cc: David Kiliani <mail@davidkiliani.de> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
372 lines
9.7 KiB
C
372 lines
9.7 KiB
C
/**
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* @file me4600_device.c
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*
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* @brief ME-4600 device class implementation.
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* @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
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* @author Guenter Gebhardt
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* @author Krzysztof Gantzke (k.gantzke@meilhaus.de)
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*/
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/*
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* Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __KERNEL__
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# define __KERNEL__
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#endif
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#ifndef MODULE
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# define MODULE
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#endif
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include "meids.h"
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#include "meerror.h"
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#include "mecommon.h"
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#include "meinternal.h"
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#include "medebug.h"
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#include "medevice.h"
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#include "me4600_device.h"
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#include "meplx_reg.h"
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#include "mefirmware.h"
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#include "mesubdevice.h"
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#include "me4600_do.h"
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#include "me4600_di.h"
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#include "me4600_dio.h"
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#include "me8254.h"
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#include "me4600_ai.h"
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#include "me4600_ao.h"
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#include "me4600_ext_irq.h"
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/**
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* @brief Global variable.
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* This is working queue for runing a separate atask that will be responsible for work status (start, stop, timeouts).
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*/
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static struct workqueue_struct *me4600_workqueue;
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#ifdef BOSCH
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me_device_t *me4600_pci_constructor(struct pci_dev *pci_device, int me_bosch_fw)
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#else //~BOSCH
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me_device_t *me4600_pci_constructor(struct pci_dev *pci_device)
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#endif //BOSCH
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{
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me4600_device_t *me4600_device;
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me_subdevice_t *subdevice;
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unsigned int version_idx;
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int err;
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int i;
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PDEBUG("executed.\n");
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// Allocate structure for device instance.
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me4600_device = kmalloc(sizeof(me4600_device_t), GFP_KERNEL);
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if (!me4600_device) {
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PERROR("Cannot get memory for ME-4600 device instance.\n");
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return NULL;
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}
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memset(me4600_device, 0, sizeof(me4600_device_t));
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// Initialize base class structure.
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err = me_device_pci_init((me_device_t *) me4600_device, pci_device);
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if (err) {
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kfree(me4600_device);
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PERROR("Cannot initialize device base class.\n");
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return NULL;
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}
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// Download the xilinx firmware.
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if (me4600_device->base.info.pci.device_id == PCI_DEVICE_ID_MEILHAUS_ME4610) { //Jekyll <=> me4610
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err =
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me_xilinx_download(me4600_device->base.info.pci.
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reg_bases[1],
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me4600_device->base.info.pci.
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reg_bases[5], &pci_device->dev,
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"me4610.bin");
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} else { // General me4600 firmware
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#ifdef BOSCH
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err =
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me_xilinx_download(me4600_device->base.info.pci.
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reg_bases[1],
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me4600_device->base.info.pci.
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reg_bases[5], &pci_device->dev,
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(me_bosch_fw) ? "me4600_bosch.bin" :
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"me4600.bin");
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#else //~BOSCH
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err =
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me_xilinx_download(me4600_device->base.info.pci.
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reg_bases[1],
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me4600_device->base.info.pci.
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reg_bases[5], &pci_device->dev,
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"me4600.bin");
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#endif
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}
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if (err) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot download firmware.\n");
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return NULL;
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}
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// Get the index in the device version information table.
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version_idx =
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me4600_versions_get_device_index(me4600_device->base.info.pci.
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device_id);
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// Initialize spin locks.
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spin_lock_init(&me4600_device->preload_reg_lock);
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me4600_device->preload_flags = 0;
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spin_lock_init(&me4600_device->dio_lock);
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spin_lock_init(&me4600_device->ai_ctrl_lock);
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spin_lock_init(&me4600_device->ctr_ctrl_reg_lock);
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spin_lock_init(&me4600_device->ctr_clk_src_reg_lock);
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// Create digital input instances.
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for (i = 0; i < me4600_versions[version_idx].di_subdevices; i++) {
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subdevice =
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(me_subdevice_t *) me4600_di_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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&me4600_device->
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dio_lock);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create digital output instances.
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for (i = 0; i < me4600_versions[version_idx].do_subdevices; i++) {
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subdevice =
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(me_subdevice_t *) me4600_do_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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&me4600_device->
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dio_lock);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create digital input/output instances.
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for (i = 0; i < me4600_versions[version_idx].dio_subdevices; i++) {
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subdevice =
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(me_subdevice_t *) me4600_dio_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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me4600_versions
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[version_idx].
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do_subdevices +
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me4600_versions
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[version_idx].
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di_subdevices + i,
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&me4600_device->
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dio_lock);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create analog input instances.
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for (i = 0; i < me4600_versions[version_idx].ai_subdevices; i++) {
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subdevice =
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(me_subdevice_t *) me4600_ai_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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me4600_versions
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[version_idx].
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ai_channels,
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me4600_versions
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[version_idx].
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ai_ranges,
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me4600_versions
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[version_idx].
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ai_isolated,
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me4600_versions
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[version_idx].
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ai_sh,
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me4600_device->
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base.irq,
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&me4600_device->
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ai_ctrl_lock,
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me4600_workqueue);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create analog output instances.
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for (i = 0; i < me4600_versions[version_idx].ao_subdevices; i++) {
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#ifdef BOSCH
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subdevice =
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(me_subdevice_t *) me4600_ao_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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&me4600_device->
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preload_reg_lock,
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&me4600_device->
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preload_flags, i,
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me4600_versions
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[version_idx].
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ao_fifo,
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me4600_device->
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base.irq);
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#else //~BOSCH
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subdevice =
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(me_subdevice_t *) me4600_ao_constructor(me4600_device->
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base.info.pci.
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reg_bases[2],
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&me4600_device->
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preload_reg_lock,
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&me4600_device->
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preload_flags, i,
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me4600_versions
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[version_idx].
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ao_fifo,
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me4600_device->
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base.irq,
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me4600_workqueue);
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#endif
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create counter instances.
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for (i = 0; i < me4600_versions[version_idx].ctr_subdevices; i++) {
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subdevice =
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(me_subdevice_t *) me8254_constructor(me4600_device->base.
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info.pci.device_id,
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me4600_device->base.
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info.pci.reg_bases[3],
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0, i,
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&me4600_device->
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ctr_ctrl_reg_lock,
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&me4600_device->
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ctr_clk_src_reg_lock);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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// Create external interrupt instances.
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for (i = 0; i < me4600_versions[version_idx].ext_irq_subdevices; i++) {
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subdevice =
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(me_subdevice_t *)
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me4600_ext_irq_constructor(me4600_device->base.info.pci.
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reg_bases[2],
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me4600_device->base.irq,
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&me4600_device->ai_ctrl_lock);
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if (!subdevice) {
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me_device_deinit((me_device_t *) me4600_device);
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kfree(me4600_device);
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PERROR("Cannot get memory for subdevice.\n");
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return NULL;
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}
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me_slist_add_subdevice_tail(&me4600_device->base.slist,
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subdevice);
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}
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return (me_device_t *) me4600_device;
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}
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EXPORT_SYMBOL(me4600_pci_constructor);
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// Init and exit of module.
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static int __init me4600_init(void)
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{
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PDEBUG("executed.\n");
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#ifndef BOSCH
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me4600_workqueue = create_singlethread_workqueue("me4600");
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#endif
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return 0;
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}
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static void __exit me4600_exit(void)
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{
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PDEBUG("executed.\n");
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#ifndef BOSCH
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flush_workqueue(me4600_workqueue);
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destroy_workqueue(me4600_workqueue);
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#endif
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}
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module_init(me4600_init);
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module_exit(me4600_exit);
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// Administrative stuff for modinfo.
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MODULE_AUTHOR
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("Guenter Gebhardt <g.gebhardt@meilhaus.de> & Krzysztof Gantzke <k.gantzke@meilhaus.de>");
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MODULE_DESCRIPTION("Device Driver Module for ME-46xx Devices");
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MODULE_SUPPORTED_DEVICE("Meilhaus ME-46xx Devices");
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MODULE_LICENSE("GPL");
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