diff options
Diffstat (limited to 'drivers/staging/meilhaus/me0600_device.c')
| -rw-r--r-- | drivers/staging/meilhaus/me0600_device.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me0600_device.c b/drivers/staging/meilhaus/me0600_device.c new file mode 100644 index 000000000000..8950e47e0e86 --- /dev/null +++ b/drivers/staging/meilhaus/me0600_device.c @@ -0,0 +1,215 @@ +/** + * @file me0600_device.c + * + * @brief ME-630 device class 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 "medebug.h" +#include "medevice.h" +#include "me0600_device.h" +#include "mesubdevice.h" +#include "me0600_relay.h" +#include "me0600_ttli.h" +#include "me0600_optoi.h" +#include "me0600_dio.h" +#include "me0600_ext_irq.h" + +me_device_t *me0600_pci_constructor(struct pci_dev *pci_device) +{ + me0600_device_t *me0600_device; + me_subdevice_t *subdevice; + unsigned int version_idx; + int err; + int i; + + PDEBUG("executed.\n"); + + // Allocate structure for device instance. + me0600_device = kmalloc(sizeof(me0600_device_t), GFP_KERNEL); + + if (!me0600_device) { + PERROR("Cannot get memory for device instance.\n"); + return NULL; + } + + memset(me0600_device, 0, sizeof(me0600_device_t)); + + // Initialize base class structure. + err = me_device_pci_init((me_device_t *) me0600_device, pci_device); + + if (err) { + kfree(me0600_device); + PERROR("Cannot initialize device base class.\n"); + return NULL; + } + + /* Get the index in the device version information table. */ + version_idx = + me0600_versions_get_device_index(me0600_device->base.info.pci. + device_id); + + // Initialize spin lock . + spin_lock_init(&me0600_device->dio_ctrl_reg_lock); + spin_lock_init(&me0600_device->intcsr_lock); + + // Create subdevice instances. + + for (i = 0; i < me0600_versions[version_idx].optoi_subdevices; i++) { + subdevice = + (me_subdevice_t *) me0600_optoi_constructor(me0600_device-> + base.info.pci. + reg_bases[2]); + + if (!subdevice) { + me_device_deinit((me_device_t *) me0600_device); + kfree(me0600_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me0600_device->base.slist, + subdevice); + } + + for (i = 0; i < me0600_versions[version_idx].relay_subdevices; i++) { + subdevice = + (me_subdevice_t *) me0600_relay_constructor(me0600_device-> + base.info.pci. + reg_bases[2]); + + if (!subdevice) { + me_device_deinit((me_device_t *) me0600_device); + kfree(me0600_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me0600_device->base.slist, + subdevice); + } + + for (i = 0; i < me0600_versions[version_idx].ttli_subdevices; i++) { + subdevice = + (me_subdevice_t *) me0600_ttli_constructor(me0600_device-> + base.info.pci. + reg_bases[2]); + + if (!subdevice) { + me_device_deinit((me_device_t *) me0600_device); + kfree(me0600_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me0600_device->base.slist, + subdevice); + } + + for (i = 0; i < me0600_versions[version_idx].dio_subdevices; i++) { + subdevice = + (me_subdevice_t *) me0600_dio_constructor(me0600_device-> + base.info.pci. + reg_bases[2], i, + &me0600_device-> + dio_ctrl_reg_lock); + + if (!subdevice) { + me_device_deinit((me_device_t *) me0600_device); + kfree(me0600_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me0600_device->base.slist, + subdevice); + } + + for (i = 0; i < me0600_versions[version_idx].ext_irq_subdevices; i++) { + subdevice = + (me_subdevice_t *) + me0600_ext_irq_constructor(me0600_device->base.info.pci. + reg_bases[1], + me0600_device->base.info.pci. + reg_bases[2], + &me0600_device->intcsr_lock, i, + me0600_device->base.irq); + + if (!subdevice) { + me_device_deinit((me_device_t *) me0600_device); + kfree(me0600_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me0600_device->base.slist, + subdevice); + } + + return (me_device_t *) me0600_device; +} + +// Init and exit of module. + +static int __init me0600_init(void) +{ + PDEBUG("executed.\n"); + return 0; +} + +static void __exit me0600_exit(void) +{ + PDEBUG("executed.\n"); +} + +module_init(me0600_init); + +module_exit(me0600_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-6xx Device"); +MODULE_SUPPORTED_DEVICE("Meilhaus ME-6xx Devices"); +MODULE_LICENSE("GPL"); + +// Export the constructor. +EXPORT_SYMBOL(me0600_pci_constructor); |