diff options
Diffstat (limited to 'drivers/staging/meilhaus/me0600_optoi.c')
| -rw-r--r-- | drivers/staging/meilhaus/me0600_optoi.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/drivers/staging/meilhaus/me0600_optoi.c b/drivers/staging/meilhaus/me0600_optoi.c deleted file mode 100644 index 43f710ffd278..000000000000 --- a/drivers/staging/meilhaus/me0600_optoi.c +++ /dev/null @@ -1,243 +0,0 @@ -/** - * @file me0600_optoi.c - * - * @brief ME-630 Optoisolated input subdevice instance. - * @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 - -/* - * Includes - */ -#include <linux/module.h> - -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/types.h> - -#include "medefines.h" -#include "meinternal.h" -#include "meerror.h" - -#include "medebug.h" -#include "me0600_optoi_reg.h" -#include "me0600_optoi.h" - -/* - * Defines - */ - -/* - * Functions - */ - -static int me0600_optoi_io_reset_subdevice(struct me_subdevice *subdevice, - struct file *filep, int flags) -{ - - if (flags) { - PERROR("Invalid flag specified.\n"); - return ME_ERRNO_INVALID_FLAGS; - } - - PDEBUG("executed.\n"); - return ME_ERRNO_SUCCESS; -} - -static int me0600_optoi_io_single_config(me_subdevice_t *subdevice, - struct file *filep, - int channel, - int single_config, - int ref, - int trig_chan, - int trig_type, - int trig_edge, int flags) -{ - me0600_optoi_subdevice_t *instance; - int err = ME_ERRNO_SUCCESS; - - PDEBUG("executed.\n"); - - instance = (me0600_optoi_subdevice_t *) subdevice; - - ME_SUBDEVICE_ENTER; - - spin_lock(&instance->subdevice_lock); - - switch (flags) { - case ME_IO_SINGLE_CONFIG_NO_FLAGS: - case ME_IO_SINGLE_CONFIG_DIO_BYTE: - if (channel == 0) { - if (single_config != ME_SINGLE_CONFIG_DIO_INPUT) { - PERROR("Invalid port direction specified.\n"); - err = ME_ERRNO_INVALID_SINGLE_CONFIG; - } - } else { - PERROR("Invalid channel specified.\n"); - err = ME_ERRNO_INVALID_CHANNEL; - } - - break; - - default: - PERROR("Invalid flags specified.\n"); - - err = ME_ERRNO_INVALID_FLAGS; - - break; - } - - spin_unlock(&instance->subdevice_lock); - - ME_SUBDEVICE_EXIT; - - return err; -} - -static int me0600_optoi_io_single_read(me_subdevice_t *subdevice, - struct file *filep, - int channel, - int *value, int time_out, int flags) -{ - me0600_optoi_subdevice_t *instance; - int err = ME_ERRNO_SUCCESS; - - PDEBUG("executed.\n"); - - instance = (me0600_optoi_subdevice_t *) subdevice; - - ME_SUBDEVICE_ENTER; - - spin_lock(&instance->subdevice_lock); - - switch (flags) { - case ME_IO_SINGLE_TYPE_DIO_BIT: - if ((channel >= 0) && (channel < 8)) { - *value = inb(instance->port_reg) & (0x1 << channel); - } else { - PERROR("Invalid bit number specified.\n"); - err = ME_ERRNO_INVALID_CHANNEL; - } - - break; - - case ME_IO_SINGLE_NO_FLAGS: - case ME_IO_SINGLE_TYPE_DIO_BYTE: - if (channel == 0) { - *value = inb(instance->port_reg); - } else { - PERROR("Invalid byte number specified.\n"); - err = ME_ERRNO_INVALID_CHANNEL; - } - - break; - - default: - PERROR("Invalid flags specified.\n"); - - err = ME_ERRNO_INVALID_FLAGS; - } - - spin_unlock(&instance->subdevice_lock); - - ME_SUBDEVICE_EXIT; - - return err; -} - -static int me0600_optoi_query_number_channels(me_subdevice_t *subdevice, - int *number) -{ - PDEBUG("executed.\n"); - *number = 8; - return ME_ERRNO_SUCCESS; -} - -static int me0600_optoi_query_subdevice_type(me_subdevice_t *subdevice, - int *type, int *subtype) -{ - PDEBUG("executed.\n"); - *type = ME_TYPE_DI; - *subtype = ME_SUBTYPE_SINGLE; - return ME_ERRNO_SUCCESS; -} - -static int me0600_optoi_query_subdevice_caps(me_subdevice_t *subdevice, - int *caps) -{ - PDEBUG("executed.\n"); - *caps = 0; - return ME_ERRNO_SUCCESS; -} - -me0600_optoi_subdevice_t *me0600_optoi_constructor(uint32_t reg_base) -{ - me0600_optoi_subdevice_t *subdevice; - int err; - - PDEBUG("executed.\n"); - - /* Allocate memory for subdevice instance */ - subdevice = kmalloc(sizeof(me0600_optoi_subdevice_t), GFP_KERNEL); - - if (!subdevice) { - PERROR("Cannot get memory for subdevice instance.\n"); - return NULL; - } - - memset(subdevice, 0, sizeof(me0600_optoi_subdevice_t)); - - /* Initialize subdevice base class */ - err = me_subdevice_init(&subdevice->base); - - if (err) { - PERROR("Cannot initialize subdevice base class instance.\n"); - kfree(subdevice); - return NULL; - } - /* Initialize spin locks. */ - spin_lock_init(&subdevice->subdevice_lock); - - /* Save the subdevice index */ - subdevice->port_reg = reg_base + ME0600_OPTO_INPUT_REG; - - /* Overload base class methods. */ - subdevice->base.me_subdevice_io_reset_subdevice = - me0600_optoi_io_reset_subdevice; - subdevice->base.me_subdevice_io_single_config = - me0600_optoi_io_single_config; - subdevice->base.me_subdevice_io_single_read = - me0600_optoi_io_single_read; - subdevice->base.me_subdevice_query_number_channels = - me0600_optoi_query_number_channels; - subdevice->base.me_subdevice_query_subdevice_type = - me0600_optoi_query_subdevice_type; - subdevice->base.me_subdevice_query_subdevice_caps = - me0600_optoi_query_subdevice_caps; - - return subdevice; -} |