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Subject[PATCH] synclink_cs.c 2.5.68
From
Date
* Remove MODULE_USE_COUNT macros
* Add owner member
* Add tiocmget/tiocmset tty callbacks

Please Apply

Paul Fulghum
paulkf@microgate.com

--- linux-2.5.68/drivers/char/pcmcia/synclink_cs.c 2003-04-07 12:31:03.000000000 -0500
+++ linux-2.5.68-mg/drivers/char/pcmcia/synclink_cs.c 2003-04-21 12:54:06.661578104 -0500
@@ -1,7 +1,7 @@
/*
* linux/drivers/char/pcmcia/synclink_cs.c
*
- * $Id: synclink_cs.c,v 4.4 2002/10/10 14:53:37 paulkf Exp $
+ * $Id: synclink_cs.c,v 4.6 2003/04/21 17:46:55 paulkf Exp $
*
* Device driver for Microgate SyncLink PC Card
* multiprotocol serial adapter.
@@ -442,9 +442,9 @@
/*
* ioctl handlers
*/
-static int set_modem_info(MGSLPC_INFO *info, unsigned int cmd,
- unsigned int *value);
-static int get_modem_info(MGSLPC_INFO *info, unsigned int *value);
+static int tiocmget(struct tty_struct *tty, struct file *file);
+static int tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear);
static int get_stats(MGSLPC_INFO *info, struct mgsl_icount *user_icount);
static int get_params(MGSLPC_INFO *info, MGSL_PARAMS *user_params);
static int set_params(MGSLPC_INFO *info, MGSL_PARAMS *new_params);
@@ -496,7 +496,7 @@
MODULE_LICENSE("GPL");

static char *driver_name = "SyncLink PC Card driver";
-static char *driver_version = "$Revision: 4.4 $";
+static char *driver_version = "$Revision: 4.6 $";

static struct tty_driver serial_driver, callout_driver;
static int serial_refcount;
@@ -2326,94 +2326,56 @@
return rc;
}

-/* Return state of the serial control/status signals
- *
- * Arguments: info pointer to device instance data
- * value pointer to int to hold returned info
- *
- * Return Value: 0 if success, otherwise error code
+/* return the state of the serial control and status signals
*/
-static int get_modem_info(MGSLPC_INFO * info, unsigned int *value)
+static int tiocmget(struct tty_struct *tty, struct file *file)
{
+ MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned int result;
unsigned long flags;
- int err;
-
+
spin_lock_irqsave(&info->lock,flags);
get_signals(info);
spin_unlock_irqrestore(&info->lock,flags);

- result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) |
- ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) |
- ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) |
- ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) |
- ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) |
- ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
+ result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
+ ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
+ ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
+ ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) +
+ ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
+ ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);

if (debug_level >= DEBUG_LEVEL_INFO)
- printk("mgslpc_get_modem_info %s value=%08X\n", info->device_name, result);
-
- PUT_USER(err,result,value);
- return err ? -EFAULT : 0;
+ printk("%s(%d):%s tiocmget() value=%08X\n",
+ __FILE__,__LINE__, info->device_name, result );
+ return result;
}

-/* Set the state of the modem control signals (DTR/RTS)
- *
- * Arguments:
- *
- * info pointer to device instance data
- * cmd signal command: TIOCMBIS = set bit TIOCMBIC = clear bit
- * TIOCMSET = set/clear signal values
- * value bit mask for command
- *
- * Return Value: 0 if success, otherwise error code
+/* set modem control signals (DTR/RTS)
*/
-static int set_modem_info(MGSLPC_INFO * info, unsigned int cmd,
- unsigned int *value)
+static int tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
{
- int error;
- unsigned int arg;
+ MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
-
+
if (debug_level >= DEBUG_LEVEL_INFO)
- printk("mgslpc_set_modem_info %s\n", info->device_name);
-
- GET_USER(error,arg,value);
- if (error)
- return error;
-
- switch (cmd) {
- case TIOCMBIS:
- if (arg & TIOCM_RTS)
- info->serial_signals |= SerialSignal_RTS;
- if (arg & TIOCM_DTR)
- info->serial_signals |= SerialSignal_DTR;
- break;
- case TIOCMBIC:
- if (arg & TIOCM_RTS)
- info->serial_signals &= ~SerialSignal_RTS;
- if (arg & TIOCM_DTR)
- info->serial_signals &= ~SerialSignal_DTR;
- break;
- case TIOCMSET:
- if (arg & TIOCM_RTS)
- info->serial_signals |= SerialSignal_RTS;
- else
- info->serial_signals &= ~SerialSignal_RTS;
-
- if (arg & TIOCM_DTR)
- info->serial_signals |= SerialSignal_DTR;
- else
- info->serial_signals &= ~SerialSignal_DTR;
- break;
- default:
- return -EINVAL;
- }
-
+ printk("%s(%d):%s tiocmset(%x,%x)\n",
+ __FILE__,__LINE__,info->device_name, set, clear);
+
+ if (set & TIOCM_RTS)
+ info->serial_signals |= SerialSignal_RTS;
+ if (set & TIOCM_DTR)
+ info->serial_signals |= SerialSignal_DTR;
+ if (clear & TIOCM_RTS)
+ info->serial_signals &= ~SerialSignal_RTS;
+ if (clear & TIOCM_DTR)
+ info->serial_signals &= ~SerialSignal_DTR;
+
spin_lock_irqsave(&info->lock,flags);
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
-
+
return 0;
}

@@ -2482,12 +2444,6 @@
unsigned long flags;

switch (cmd) {
- case TIOCMGET:
- return get_modem_info(info, (unsigned int *) arg);
- case TIOCMBIS:
- case TIOCMBIC:
- case TIOCMSET:
- return set_modem_info(info, cmd, (unsigned int *) arg);
case MGSL_IOCGPARAMS:
return get_params(info,(MGSL_PARAMS *)arg);
case MGSL_IOCSPARAMS:
@@ -2687,7 +2643,6 @@
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__,__LINE__,
tty->driver.name, info->count);
- MOD_DEC_USE_COUNT;
}

/* Wait until the transmitter is empty.
@@ -2939,8 +2894,6 @@
printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
__FILE__,__LINE__,tty->driver.name, info->count);

- MOD_INC_USE_COUNT;
-
/* If port is closing, signal caller to try again */
if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
if (info->flags & ASYNC_CLOSING)
@@ -2995,7 +2948,6 @@

cleanup:
if (retval) {
- MOD_DEC_USE_COUNT;
if(info->count)
info->count--;
}
@@ -3247,6 +3199,7 @@

memset(&serial_driver, 0, sizeof(struct tty_driver));
serial_driver.magic = TTY_DRIVER_MAGIC;
+ serial_driver.owner = THIS_MODULE;
serial_driver.driver_name = "synclink_cs";
serial_driver.name = "ttySLP";
serial_driver.major = ttymajor;
@@ -3282,6 +3235,8 @@
serial_driver.stop = tx_pause;
serial_driver.start = tx_release;
serial_driver.hangup = mgslpc_hangup;
+ serial_driver.tiocmget = tiocmget;
+ serial_driver.tiocmset = tiocmset;

/*
* The callout device is just like normal device except for
@@ -4386,7 +4341,7 @@
{
MGSLPC_INFO *info = d->priv;
int err;
- long flags;
+ unsigned long flags;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_sppp_open(%s)\n",info->netname);
@@ -4398,7 +4353,6 @@
return -EBUSY;
}
info->netcount=1;
- MOD_INC_USE_COUNT;
spin_unlock_irqrestore(&info->netlock, flags);

/* claim resources and init adapter */
@@ -4421,7 +4375,6 @@
open_fail:
spin_lock_irqsave(&info->netlock, flags);
info->netcount=0;
- MOD_DEC_USE_COUNT;
spin_unlock_irqrestore(&info->netlock, flags);
return err;
}
@@ -4429,7 +4382,7 @@
void mgslpc_sppp_tx_timeout(struct net_device *dev)
{
MGSLPC_INFO *info = dev->priv;
- long flags;
+ unsigned long flags;

if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_sppp_tx_timeout(%s)\n",info->netname);
@@ -4491,7 +4444,6 @@

spin_lock_irqsave(&info->netlock, flags);
info->netcount=0;
- MOD_DEC_USE_COUNT;
spin_unlock_irqrestore(&info->netlock, flags);
return 0;
}


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