Release 4.11 drivers/staging/dgnc/dgnc_mgmt.c
/*
* Copyright 2003 Digi International (www.digi.com)
* Scott H Kilau <Scott_Kilau at digi dot com>
*
* 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, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*/
/*
* This file implements the mgmt functionality for the
* Neo and ClassicBoard based product lines.
*/
#include <linux/kernel.h>
#include <linux/ctype.h>
#include <linux/sched.h> /* For jiffies, task states */
#include <linux/interrupt.h> /* For tasklet and interrupt structs/defines */
#include <linux/serial_reg.h>
#include <linux/termios.h>
#include <linux/uaccess.h> /* For copy_from_user/copy_to_user */
#include "dgnc_driver.h"
#include "dgnc_pci.h"
#include "dgnc_mgmt.h"
/* Our "in use" variables, to enforce 1 open only */
static int dgnc_mgmt_in_use[MAXMGMTDEVICES];
/*
* dgnc_mgmt_open()
*
* Open the mgmt/downld/dpa device
*/
int dgnc_mgmt_open(struct inode *inode, struct file *file)
{
unsigned long flags;
unsigned int minor = iminor(inode);
spin_lock_irqsave(&dgnc_global_lock, flags);
/* mgmt device */
if (minor < MAXMGMTDEVICES) {
/* Only allow 1 open at a time on mgmt device */
if (dgnc_mgmt_in_use[minor]) {
spin_unlock_irqrestore(&dgnc_global_lock, flags);
return -EBUSY;
}
dgnc_mgmt_in_use[minor]++;
} else {
spin_unlock_irqrestore(&dgnc_global_lock, flags);
return -ENXIO;
}
spin_unlock_irqrestore(&dgnc_global_lock, flags);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lidza Louina | 86 | 86.87% | 1 | 50.00% |
| Roberta Dobrescu | 13 | 13.13% | 1 | 50.00% |
| Total | 99 | 100.00% | 2 | 100.00% |
/*
* dgnc_mgmt_close()
*
* Open the mgmt/dpa device
*/
int dgnc_mgmt_close(struct inode *inode, struct file *file)
{
unsigned long flags;
unsigned int minor = iminor(inode);
spin_lock_irqsave(&dgnc_global_lock, flags);
/* mgmt device */
if (minor < MAXMGMTDEVICES) {
if (dgnc_mgmt_in_use[minor])
dgnc_mgmt_in_use[minor] = 0;
}
spin_unlock_irqrestore(&dgnc_global_lock, flags);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lidza Louina | 63 | 90.00% | 1 | 50.00% |
| Roberta Dobrescu | 7 | 10.00% | 1 | 50.00% |
| Total | 70 | 100.00% | 2 | 100.00% |
/*
* dgnc_mgmt_ioctl()
*
* ioctl the mgmt/dpa device
*/
long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
unsigned long flags;
void __user *uarg = (void __user *)arg;
switch (cmd) {
case DIGI_GETDD:
{
/*
* This returns the total number of boards
* in the system, as well as driver version
* and has space for a reserved entry
*/
struct digi_dinfo ddi;
spin_lock_irqsave(&dgnc_global_lock, flags);
memset(&ddi, 0, sizeof(ddi));
ddi.dinfo_nboards = dgnc_num_boards;
sprintf(ddi.dinfo_version, "%s", DG_PART);
spin_unlock_irqrestore(&dgnc_global_lock, flags);
if (copy_to_user(uarg, &ddi, sizeof(ddi)))
return -EFAULT;
break;
}
case DIGI_GETBD:
{
int brd;
struct digi_info di;
if (copy_from_user(&brd, uarg, sizeof(int)))
return -EFAULT;
if (brd < 0 || brd >= dgnc_num_boards)
return -ENODEV;
memset(&di, 0, sizeof(di));
di.info_bdnum = brd;
spin_lock_irqsave(&dgnc_board[brd]->bd_lock, flags);
di.info_bdtype = dgnc_board[brd]->dpatype;
di.info_bdstate = dgnc_board[brd]->dpastatus;
di.info_ioport = 0;
di.info_physaddr = (ulong)dgnc_board[brd]->membase;
di.info_physsize = (ulong)dgnc_board[brd]->membase
- dgnc_board[brd]->membase_end;
if (dgnc_board[brd]->state != BOARD_FAILED)
di.info_nports = dgnc_board[brd]->nasync;
else
di.info_nports = 0;
spin_unlock_irqrestore(&dgnc_board[brd]->bd_lock, flags);
if (copy_to_user(uarg, &di, sizeof(di)))
return -EFAULT;
break;
}
case DIGI_GET_NI_INFO:
{
struct channel_t *ch;
struct ni_info ni;
unsigned char mstat = 0;
uint board = 0;
uint channel = 0;
if (copy_from_user(&ni, uarg, sizeof(ni)))
return -EFAULT;
board = ni.board;
channel = ni.channel;
/* Verify boundaries on board */
if (board >= dgnc_num_boards)
return -ENODEV;
/* Verify boundaries on channel */
if (channel >= dgnc_board[board]->nasync)
return -ENODEV;
ch = dgnc_board[board]->channels[channel];
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return -ENODEV;
memset(&ni, 0, sizeof(ni));
ni.board = board;
ni.channel = channel;
spin_lock_irqsave(&ch->ch_lock, flags);
mstat = ch->ch_mostat | ch->ch_mistat;
if (mstat & UART_MCR_DTR) {
ni.mstat |= TIOCM_DTR;
ni.dtr = TIOCM_DTR;
}
if (mstat & UART_MCR_RTS) {
ni.mstat |= TIOCM_RTS;
ni.rts = TIOCM_RTS;
}
if (mstat & UART_MSR_CTS) {
ni.mstat |= TIOCM_CTS;
ni.cts = TIOCM_CTS;
}
if (mstat & UART_MSR_RI) {
ni.mstat |= TIOCM_RI;
ni.ri = TIOCM_RI;
}
if (mstat & UART_MSR_DCD) {
ni.mstat |= TIOCM_CD;
ni.dcd = TIOCM_CD;
}
if (mstat & UART_MSR_DSR)
ni.mstat |= TIOCM_DSR;
ni.iflag = ch->ch_c_iflag;
ni.oflag = ch->ch_c_oflag;
ni.cflag = ch->ch_c_cflag;
ni.lflag = ch->ch_c_lflag;
if (ch->ch_digi.digi_flags & CTSPACE ||
ch->ch_c_cflag & CRTSCTS)
ni.hflow = 1;
else
ni.hflow = 0;
if ((ch->ch_flags & CH_STOPI) ||
(ch->ch_flags & CH_FORCED_STOPI))
ni.recv_stopped = 1;
else
ni.recv_stopped = 0;
if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_FORCED_STOP))
ni.xmit_stopped = 1;
else
ni.xmit_stopped = 0;
ni.curtx = ch->ch_txcount;
ni.currx = ch->ch_rxcount;
ni.baud = ch->ch_old_baud;
spin_unlock_irqrestore(&ch->ch_lock, flags);
if (copy_to_user(uarg, &ni, sizeof(ni)))
return -EFAULT;
break;
}
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lidza Louina | 719 | 93.38% | 2 | 25.00% |
| Roberta Dobrescu | 19 | 2.47% | 1 | 12.50% |
| DaeSeok Youn | 14 | 1.82% | 1 | 12.50% |
| Salva Peiró | 13 | 1.69% | 1 | 12.50% |
| Dan Carpenter | 3 | 0.39% | 2 | 25.00% |
| Ebru Akagunduz | 2 | 0.26% | 1 | 12.50% |
| Total | 770 | 100.00% | 8 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lidza Louina | 911 | 92.49% | 3 | 25.00% |
| Roberta Dobrescu | 39 | 3.96% | 1 | 8.33% |
| DaeSeok Youn | 14 | 1.42% | 1 | 8.33% |
| Salva Peiró | 13 | 1.32% | 1 | 8.33% |
| Dan Carpenter | 3 | 0.30% | 2 | 16.67% |
| Ebru Akagunduz | 2 | 0.20% | 1 | 8.33% |
| Walt Feasel | 1 | 0.10% | 1 | 8.33% |
| Giedrius Statkevičius | 1 | 0.10% | 1 | 8.33% |
| Iulia Manda | 1 | 0.10% | 1 | 8.33% |
| Total | 985 | 100.00% | 12 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.