[PATCH] synclink.c 2.5.68

From: Paul Fulghum (paulkf@microgate.com)
Date: Mon Apr 21 2003 - 13:41:00 EST


* 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/synclink.c 2003-04-07 12:31:04.000000000 -0500
+++ linux-2.5.68-mg/drivers/char/synclink.c 2003-04-21 12:54:06.657578712 -0500
@@ -1,7 +1,7 @@
 /*
  * linux/drivers/char/synclink.c
  *
- * $Id: synclink.c,v 4.4 2002/10/10 14:53:36 paulkf Exp $
+ * $Id: synclink.c,v 4.6 2003/04/21 17:46:54 paulkf Exp $
  *
  * Device driver for Microgate SyncLink ISA and PCI
  * high speed multiprotocol serial adapters.
@@ -854,9 +854,9 @@
 /*
  * ioctl call handlers
  */
-static int set_modem_info(struct mgsl_struct * info, unsigned int cmd,
- unsigned int *value);
-static int get_modem_info(struct mgsl_struct * 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 mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount
         *user_icount);
 static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS *user_params);
@@ -917,7 +917,7 @@
 MODULE_PARM(txholdbufs,"1-" __MODULE_STRING(MAX_TOTAL_DEVICES) "i");
 
 static char *driver_name = "SyncLink serial driver";
-static char *driver_version = "$Revision: 4.4 $";
+static char *driver_version = "$Revision: 4.6 $";
 
 static int synclink_init_one (struct pci_dev *dev,
                                      const struct pci_device_id *ent);
@@ -2921,110 +2921,58 @@
         return rc;
 }
 
-/* get_modem_info()
- *
- * Read the state of the serial control and
- * status signals and return to caller.
- *
- * 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(struct mgsl_struct * info, unsigned int *value)
+static int tiocmget(struct tty_struct *tty, struct file *file)
 {
- unsigned int result = 0;
+ struct mgsl_struct *info = (struct mgsl_struct *)tty->driver_data;
+ unsigned int result;
          unsigned long flags;
- int err;
-
+
         spin_lock_irqsave(&info->irq_spinlock,flags);
          usc_get_serial_signals(info);
         spin_unlock_irqrestore(&info->irq_spinlock,flags);
 
- if (info->serial_signals & SerialSignal_RTS)
- result |= TIOCM_RTS;
- if (info->serial_signals & SerialSignal_DTR)
- result |= TIOCM_DTR;
- if (info->serial_signals & SerialSignal_DCD)
- result |= TIOCM_CAR;
- if (info->serial_signals & SerialSignal_RI)
- result |= TIOCM_RNG;
- if (info->serial_signals & SerialSignal_DSR)
- result |= TIOCM_DSR;
- if (info->serial_signals & SerialSignal_CTS)
- result |= TIOCM_CTS;
+ 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("%s(%d):mgsl_get_modem_info %s value=%08X\n",
+ printk("%s(%d):%s tiocmget() value=%08X\n",
                          __FILE__,__LINE__, info->device_name, result );
-
- PUT_USER(err,result,value);
- return err;
-} /* end of get_modem_info() */
+ return result;
+}
 
-/* set_modem_info()
- *
- * 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(struct mgsl_struct * 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;
+ struct mgsl_struct *info = (struct mgsl_struct *)tty->driver_data;
          unsigned long flags;
-
+
         if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_set_modem_info %s\n", __FILE__,__LINE__,
- 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->irq_spinlock,flags);
          usc_set_serial_signals(info);
         spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
+
         return 0;
-
-} /* end of set_modem_info() */
+}
 
 /* mgsl_break() Set or clear transmit break condition
  *
@@ -3093,12 +3041,6 @@
         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 mgsl_get_params(info,(MGSL_PARAMS *)arg);
                 case MGSL_IOCSPARAMS:
@@ -3323,7 +3265,6 @@
         if (debug_level >= DEBUG_LEVEL_INFO)
                 printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
                         tty->driver.name, info->count);
- MOD_DEC_USE_COUNT;
                         
 } /* end of mgsl_close() */
 
@@ -3615,8 +3556,6 @@
                 printk("%s(%d):mgsl_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)
@@ -3683,7 +3622,6 @@
         
 cleanup:
         if (retval) {
- MOD_DEC_USE_COUNT;
                 if(info->count)
                         info->count--;
         }
@@ -4571,6 +4509,7 @@
         
         memset(&serial_driver, 0, sizeof(struct tty_driver));
         serial_driver.magic = TTY_DRIVER_MAGIC;
+ serial_driver.owner = THIS_MODULE;
         serial_driver.driver_name = "synclink";
         serial_driver.name = "ttySL";
         serial_driver.major = ttymajor;
@@ -4606,6 +4545,8 @@
         serial_driver.stop = mgsl_stop;
         serial_driver.start = mgsl_start;
         serial_driver.hangup = mgsl_hangup;
+ serial_driver.tiocmget = tiocmget;
+ serial_driver.tiocmset = tiocmset;
         
         /*
          * The callout device is just like normal device except for
@@ -8003,7 +7944,6 @@
                 return -EBUSY;
         }
         info->netcount=1;
- MOD_INC_USE_COUNT;
         spin_unlock_irqrestore(&info->netlock, flags);
 
         /* claim resources and init adapter */
@@ -8026,7 +7966,6 @@
 open_fail:
         spin_lock_irqsave(&info->netlock, flags);
         info->netcount=0;
- MOD_DEC_USE_COUNT;
         spin_unlock_irqrestore(&info->netlock, flags);
         return err;
 }
@@ -8092,7 +8031,6 @@
 
         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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This archive was generated by hypermail 2b29 : Wed Apr 23 2003 - 22:00:30 EST