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Diffstat (limited to 'drivers/staging/meilhaus/me4600_di.c')
-rw-r--r--drivers/staging/meilhaus/me4600_di.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/drivers/staging/meilhaus/me4600_di.c b/drivers/staging/meilhaus/me4600_di.c
deleted file mode 100644
index e107e5061388..000000000000
--- a/drivers/staging/meilhaus/me4600_di.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/**
- * @file me4600_di.c
- *
- * @brief ME-4000 digital 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 "me4600_dio_reg.h"
-#include "me4600_di.h"
-
-/*
- * Defines
- */
-
-/*
- * Functions
- */
-
-static int me4600_di_io_reset_subdevice(struct me_subdevice *subdevice,
- struct file *filep, int flags)
-{
- me4600_di_subdevice_t *instance;
- uint32_t mode;
-
- PDEBUG("executed.\n");
-
- instance = (me4600_di_subdevice_t *) subdevice;
-
- if (flags) {
- PERROR("Invalid flag specified.\n");
- return ME_ERRNO_INVALID_FLAGS;
- }
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- spin_lock(instance->ctrl_reg_lock);
- mode = inl(instance->ctrl_reg);
- mode &= ~(ME4600_DIO_CTRL_BIT_MODE_2 | ME4600_DIO_CTRL_BIT_MODE_3); //0xFFF3
- outl(mode, instance->ctrl_reg);
- PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n", instance->reg_base,
- instance->ctrl_reg - instance->reg_base, mode);
- spin_unlock(instance->ctrl_reg_lock);
-
- outl(0, instance->port_reg);
- PDEBUG_REG("port_reg outl(0x%lX+0x%lX)=0x%x\n", instance->reg_base,
- instance->port_reg - instance->reg_base, 0);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return ME_ERRNO_SUCCESS;
-}
-
-static int me4600_di_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)
-{
- int err = ME_ERRNO_SUCCESS;
- me4600_di_subdevice_t *instance;
-
- PDEBUG("executed.\n");
-
- instance = (me4600_di_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- 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) {
- } else {
- PERROR("Invalid port direction specified.\n");
- err = ME_ERRNO_INVALID_SINGLE_CONFIG;
- }
- } else {
- PERROR("Invalid channel number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags specified.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me4600_di_io_single_read(me_subdevice_t *subdevice,
- struct file *filep,
- int channel,
- int *value, int time_out, int flags)
-{
- me4600_di_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
-
- PDEBUG("executed.\n");
-
- instance = (me4600_di_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- switch (flags) {
- case ME_IO_SINGLE_TYPE_DIO_BIT:
- if ((channel >= 0) && (channel < 8)) {
- *value = inl(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 = inl(instance->port_reg) & 0xFF;
- } else {
- PERROR("Invalid byte number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags specified.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me4600_di_query_number_channels(me_subdevice_t *subdevice,
- int *number)
-{
- PDEBUG("executed.\n");
- *number = 8;
- return ME_ERRNO_SUCCESS;
-}
-
-static int me4600_di_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 me4600_di_query_subdevice_caps(me_subdevice_t *subdevice, int *caps)
-{
- PDEBUG("executed.\n");
- *caps = 0;
- return ME_ERRNO_SUCCESS;
-}
-
-me4600_di_subdevice_t *me4600_di_constructor(uint32_t reg_base,
- spinlock_t *ctrl_reg_lock)
-{
- me4600_di_subdevice_t *subdevice;
- int err;
-
- PDEBUG("executed.\n");
-
- /* Allocate memory for subdevice instance */
- subdevice = kmalloc(sizeof(me4600_di_subdevice_t), GFP_KERNEL);
-
- if (!subdevice) {
- PERROR("Cannot get memory for subdevice instance.\n");
- return NULL;
- }
-
- memset(subdevice, 0, sizeof(me4600_di_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);
-
- subdevice->ctrl_reg_lock = ctrl_reg_lock;
-
- /* Save the subdevice index */
- subdevice->port_reg = reg_base + ME4600_DIO_PORT_1_REG;
- subdevice->ctrl_reg = reg_base + ME4600_DIO_CTRL_REG;
-#ifdef MEDEBUG_DEBUG_REG
- subdevice->reg_base = reg_base;
-#endif
-
- /* Overload base class methods. */
- subdevice->base.me_subdevice_io_reset_subdevice =
- me4600_di_io_reset_subdevice;
- subdevice->base.me_subdevice_io_single_config =
- me4600_di_io_single_config;
- subdevice->base.me_subdevice_io_single_read = me4600_di_io_single_read;
- subdevice->base.me_subdevice_query_number_channels =
- me4600_di_query_number_channels;
- subdevice->base.me_subdevice_query_subdevice_type =
- me4600_di_query_subdevice_type;
- subdevice->base.me_subdevice_query_subdevice_caps =
- me4600_di_query_subdevice_caps;
-
- return subdevice;
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.