diff options
Diffstat (limited to 'drivers/staging/meilhaus/me8200_device.c')
| -rw-r--r-- | drivers/staging/meilhaus/me8200_device.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me8200_device.c b/drivers/staging/meilhaus/me8200_device.c new file mode 100644 index 000000000000..261c0cbd9d0a --- /dev/null +++ b/drivers/staging/meilhaus/me8200_device.c @@ -0,0 +1,194 @@ +/** + * @file me8200_device.c + * + * @brief ME-8200 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 "meplx_reg.h" +#include "medevice.h" +#include "me8200_device.h" +#include "mesubdevice.h" +#include "me8200_di.h" +#include "me8200_do.h" +#include "me8200_dio.h" + +me_device_t *me8200_pci_constructor(struct pci_dev *pci_device) +{ + me8200_device_t *me8200_device; + me_subdevice_t *subdevice; + unsigned int version_idx; + int err; + int i; + + PDEBUG("executed.\n"); + + // Allocate structure for device instance. + me8200_device = kmalloc(sizeof(me8200_device_t), GFP_KERNEL); + + if (!me8200_device) { + PERROR("Cannot get memory for device instance.\n"); + return NULL; + } + + memset(me8200_device, 0, sizeof(me8200_device_t)); + + // Initialize base class structure. + err = me_device_pci_init((me_device_t *) me8200_device, pci_device); + + if (err) { + kfree(me8200_device); + PERROR("Cannot initialize device base class.\n"); + return NULL; + } + + /* Get the index in the device version information table. */ + version_idx = + me8200_versions_get_device_index(me8200_device->base.info.pci. + device_id); + + // Initialize spin lock . + spin_lock_init(&me8200_device->irq_ctrl_lock); + spin_lock_init(&me8200_device->irq_mode_lock); + spin_lock_init(&me8200_device->dio_ctrl_lock); + + /* Setup the PLX interrupt configuration */ + outl(PLX_INTCSR_LOCAL_INT1_EN | + PLX_INTCSR_LOCAL_INT1_POL | + PLX_INTCSR_LOCAL_INT2_EN | + PLX_INTCSR_LOCAL_INT2_POL | + PLX_INTCSR_PCI_INT_EN, + me8200_device->base.info.pci.reg_bases[1] + PLX_INTCSR); + + // Create subdevice instances. + + for (i = 0; i < me8200_versions[version_idx].di_subdevices; i++) { + subdevice = + (me_subdevice_t *) me8200_di_constructor(me8200_device-> + base.info.pci. + reg_bases[2], i, + me8200_device-> + base.irq, + &me8200_device-> + irq_ctrl_lock, + &me8200_device-> + irq_mode_lock); + + if (!subdevice) { + me_device_deinit((me_device_t *) me8200_device); + kfree(me8200_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me8200_device->base.slist, + subdevice); + } + + for (i = 0; i < me8200_versions[version_idx].do_subdevices; i++) { + subdevice = + (me_subdevice_t *) me8200_do_constructor(me8200_device-> + base.info.pci. + reg_bases[2], i, + me8200_device-> + base.irq, + &me8200_device-> + irq_mode_lock); + + if (!subdevice) { + me_device_deinit((me_device_t *) me8200_device); + kfree(me8200_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me8200_device->base.slist, + subdevice); + } + + for (i = 0; i < me8200_versions[version_idx].dio_subdevices; i++) { + subdevice = + (me_subdevice_t *) me8200_dio_constructor(me8200_device-> + base.info.pci. + reg_bases[2], i, + &me8200_device-> + dio_ctrl_lock); + + if (!subdevice) { + me_device_deinit((me_device_t *) me8200_device); + kfree(me8200_device); + PERROR("Cannot get memory for subdevice.\n"); + return NULL; + } + + me_slist_add_subdevice_tail(&me8200_device->base.slist, + subdevice); + } + + return (me_device_t *) me8200_device; +} + +// Init and exit of module. + +static int __init me8200_init(void) +{ + PDEBUG("executed.\n."); + return 0; +} + +static void __exit me8200_exit(void) +{ + PDEBUG("executed.\n."); +} + +module_init(me8200_init); + +module_exit(me8200_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"); + +// Export the constructor. +EXPORT_SYMBOL(me8200_pci_constructor); |