aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/unisys/visorutil/easyproc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/unisys/visorutil/easyproc.c')
-rw-r--r--drivers/staging/unisys/visorutil/easyproc.c377
1 files changed, 0 insertions, 377 deletions
diff --git a/drivers/staging/unisys/visorutil/easyproc.c b/drivers/staging/unisys/visorutil/easyproc.c
deleted file mode 100644
index 40f1ae9a155c..000000000000
--- a/drivers/staging/unisys/visorutil/easyproc.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program 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, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-/** @file *********************************************************************
- *
- * Handle procfs-specific tasks.
- * Note that this file does not know about any module-specific things, nor
- * does it know anything about what information to reveal as part of the proc
- * entries. The 2 functions that take care of displaying device and
- * driver specific information are passed as parameters to
- * visor_easyproc_InitDriver().
- *
- * void show_device_info(struct seq_file *seq, void *p);
- * void show_driver_info(struct seq_file *seq);
- *
- * The second parameter to show_device_info is actually a pointer to the
- * device-specific info to show. It is the context that was originally
- * passed to visor_easyproc_InitDevice().
- *
- ******************************************************************************
- */
-
-#include <linux/proc_fs.h>
-
-#include "uniklog.h"
-#include "timskmod.h"
-#include "easyproc.h"
-
-#define MYDRVNAME "easyproc"
-
-
-
-/*
- * /proc/<ProcId> ProcDir
- * /proc/<ProcId>/driver ProcDriverDir
- * /proc/<ProcId>/driver/diag ProcDriverDiagFile
- * /proc/<ProcId>/device ProcDeviceDir
- * /proc/<ProcId>/device/0 procDevicexDir
- * /proc/<ProcId>/device/0/diag procDevicexDiagFile
- */
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos);
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos);
-
-static struct proc_dir_entry *
- createProcDir(char *name, struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *p = proc_mkdir_mode(name, S_IFDIR, parent);
-
- if (p == NULL)
- ERRDRV("failed to create /proc directory %s", name);
- return p;
-}
-
-static int seq_show_driver(struct seq_file *seq, void *offset);
-static int proc_open_driver(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_driver, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_driver = {
- .open = proc_open_driver,
- .read = seq_read,
- .write = proc_write_driver,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int seq_show_device(struct seq_file *seq, void *offset);
-static int seq_show_device_property(struct seq_file *seq, void *offset);
-static int proc_open_device(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_device, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device = {
- .open = proc_open_device,
- .read = seq_read,
- .write = proc_write_device,
- .llseek = seq_lseek,
- .release = single_release,
-};
-static int proc_open_device_property(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_device_property, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device_property = {
- .open = proc_open_device_property,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-
-
-void visor_easyproc_InitDriver(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *))
-{
- memset(pdriver, 0, sizeof(struct easyproc_driver_info));
- pdriver->ProcId = procId;
- if (pdriver->ProcId == NULL)
- ERRDRV("ProcId cannot be NULL (trouble ahead)!");
- pdriver->Show_driver_info = show_driver_info;
- pdriver->Show_device_info = show_device_info;
- if (pdriver->ProcDir == NULL)
- pdriver->ProcDir = createProcDir(pdriver->ProcId, NULL);
- if ((pdriver->ProcDir != NULL) && (pdriver->ProcDriverDir == NULL))
- pdriver->ProcDriverDir = createProcDir("driver",
- pdriver->ProcDir);
- if ((pdriver->ProcDir != NULL) && (pdriver->ProcDeviceDir == NULL))
- pdriver->ProcDeviceDir = createProcDir("device",
- pdriver->ProcDir);
- if ((pdriver->ProcDriverDir != NULL) &&
- (pdriver->ProcDriverDiagFile == NULL)) {
- pdriver->ProcDriverDiagFile =
- proc_create_data("diag", 0,
- pdriver->ProcDriverDir,
- &proc_fops_driver, pdriver);
- if (pdriver->ProcDriverDiagFile == NULL)
- ERRDRV("failed to register /proc/%s/driver/diag entry",
- pdriver->ProcId);
- }
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriver);
-
-
-
-void visor_easyproc_InitDriverEx(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *),
- void (*write_driver_info)(char *buf,
- size_t count,
- loff_t *ppos),
- void (*write_device_info)(char *buf,
- size_t count,
- loff_t *ppos,
- void *p))
-{
- visor_easyproc_InitDriver(pdriver, procId,
- show_driver_info, show_device_info);
- pdriver->Write_driver_info = write_driver_info;
- pdriver->Write_device_info = write_device_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriverEx);
-
-
-
-void visor_easyproc_DeInitDriver(struct easyproc_driver_info *pdriver)
-{
- if (pdriver->ProcDriverDiagFile != NULL) {
- remove_proc_entry("diag", pdriver->ProcDriverDir);
- pdriver->ProcDriverDiagFile = NULL;
- }
- if (pdriver->ProcDriverDir != NULL) {
- remove_proc_entry("driver", pdriver->ProcDir);
- pdriver->ProcDriverDir = NULL;
- }
- if (pdriver->ProcDeviceDir != NULL) {
- remove_proc_entry("device", pdriver->ProcDir);
- pdriver->ProcDeviceDir = NULL;
- }
- if (pdriver->ProcDir != NULL) {
- remove_proc_entry(pdriver->ProcId, NULL);
- pdriver->ProcDir = NULL;
- }
- pdriver->ProcId = NULL;
- pdriver->Show_driver_info = NULL;
- pdriver->Show_device_info = NULL;
- pdriver->Write_driver_info = NULL;
- pdriver->Write_device_info = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDriver);
-
-
-
-void visor_easyproc_InitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno,
- void *devdata)
-{
- if ((pdriver->ProcDeviceDir != NULL) && (p->procDevicexDir == NULL)) {
- char s[29];
-
- sprintf(s, "%d", devno);
- p->procDevicexDir = createProcDir(s, pdriver->ProcDeviceDir);
- p->devno = devno;
- }
- p->devdata = devdata;
- p->pdriver = pdriver;
- p->devno = devno;
- if ((p->procDevicexDir != NULL) && (p->procDevicexDiagFile == NULL)) {
- p->procDevicexDiagFile =
- proc_create_data("diag", 0, p->procDevicexDir,
- &proc_fops_device, p);
- if (p->procDevicexDiagFile == NULL)
- ERRDEVX(devno, "failed to register /proc/%s/device/%d/diag entry",
- pdriver->ProcId, devno
- );
- }
- memset(&(p->device_property_info[0]), 0,
- sizeof(p->device_property_info));
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDevice);
-
-
-
-void visor_easyproc_CreateDeviceProperty(struct easyproc_device_info *p,
- void (*show_property_info)
- (struct seq_file *, void *),
- char *property_name)
-{
- size_t i;
- struct easyproc_device_property_info *px = NULL;
-
- if (p->procDevicexDir == NULL) {
- ERRDRV("state error");
- return;
- }
- for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
- if (p->device_property_info[i].procEntry == NULL) {
- px = &(p->device_property_info[i]);
- break;
- }
- }
- if (!px) {
- ERRDEVX(p->devno, "too many device properties");
- return;
- }
- px->devdata = p->devdata;
- px->pdriver = p->pdriver;
- px->procEntry = proc_create_data(property_name, 0, p->procDevicexDir,
- &proc_fops_device_property, px);
- if (strlen(property_name)+1 > sizeof(px->property_name)) {
- ERRDEVX(p->devno, "device property name %s too long",
- property_name);
- return;
- }
- strcpy(px->property_name, property_name);
- if (px->procEntry == NULL) {
- ERRDEVX(p->devno,
- "failed to register /proc/%s/device/%d/%s entry",
- p->pdriver->ProcId, p->devno, property_name);
- return;
- }
- px->show_device_property_info = show_property_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_CreateDeviceProperty);
-
-
-
-void visor_easyproc_DeInitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno)
-{
- size_t i;
-
- for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
- if (p->device_property_info[i].procEntry != NULL) {
- struct easyproc_device_property_info *px =
- &(p->device_property_info[i]);
- remove_proc_entry(px->property_name, p->procDevicexDir);
- px->procEntry = NULL;
- }
- }
- if (p->procDevicexDiagFile != NULL) {
- remove_proc_entry("diag", p->procDevicexDir);
- p->procDevicexDiagFile = NULL;
- }
- if (p->procDevicexDir != NULL) {
- char s[29];
-
- sprintf(s, "%d", devno);
- remove_proc_entry(s, pdriver->ProcDeviceDir);
- p->procDevicexDir = NULL;
- }
- p->devdata = NULL;
- p->pdriver = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDevice);
-
-
-
-static int seq_show_driver(struct seq_file *seq, void *offset)
-{
- struct easyproc_driver_info *p =
- (struct easyproc_driver_info *)(seq->private);
- if (!p)
- return 0;
- (*(p->Show_driver_info))(seq);
- return 0;
-}
-
-
-
-static int seq_show_device(struct seq_file *seq, void *offset)
-{
- struct easyproc_device_info *p =
- (struct easyproc_device_info *)(seq->private);
- if ((!p) || (!(p->pdriver)))
- return 0;
- (*(p->pdriver->Show_device_info))(seq, p->devdata);
- return 0;
-}
-
-
-
-static int seq_show_device_property(struct seq_file *seq, void *offset)
-{
- struct easyproc_device_property_info *p =
- (struct easyproc_device_property_info *)(seq->private);
- if ((!p) || (!(p->show_device_property_info)))
- return 0;
- (*(p->show_device_property_info))(seq, p->devdata);
- return 0;
-}
-
-
-
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct easyproc_driver_info *p = NULL;
- char local_buf[256];
-
- if (seq == NULL)
- return 0;
- p = (struct easyproc_driver_info *)(seq->private);
- if ((!p) || (!(p->Write_driver_info)))
- return 0;
- if (count >= sizeof(local_buf))
- return -ENOMEM;
- if (copy_from_user(local_buf, buffer, count))
- return -EFAULT;
- local_buf[count] = '\0'; /* be friendly */
- (*(p->Write_driver_info))(local_buf, count, ppos);
- return count;
-}
-
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct easyproc_device_info *p = NULL;
- char local_buf[256];
-
- if (seq == NULL)
- return 0;
- p = (struct easyproc_device_info *)(seq->private);
- if ((!p) || (!(p->pdriver)) || (!(p->pdriver->Write_device_info)))
- return 0;
- if (count >= sizeof(local_buf))
- return -ENOMEM;
- if (copy_from_user(local_buf, buffer, count))
- return -EFAULT;
- local_buf[count] = '\0'; /* be friendly */
- (*(p->pdriver->Write_device_info))(local_buf, count, ppos, p->devdata);
- return count;
-}