patch-2.1.132 linux/drivers/net/irda/esi.c

• Lines: 196
• Date: Fri Dec 18 08:06:39 1998
• Orig file: v2.1.131/linux/drivers/net/irda/esi.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.131/linux/drivers/net/irda/esi.c linux/drivers/net/irda/esi.c
@@ -0,0 +1,195 @@
+/*********************************************************************
+ *                
+ * Filename:      esi.c
+ * Version:       1.0
+ * Description:   Driver for the Extended Systems JetEye PC
+ * Status:        Experimental.
+ * Author:        Thomas Davis, <ratbert@radiks.net>
+ * Created at:    Sat Feb 21 18:54:38 1998
+ * Modified at:   Mon Dec 14 11:48:22 1998
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * Sources:	  esi.c
+ *
+ *     Copyright (c) 1998, Thomas Davis, <ratbert@radiks.net>,
+ *     Copyright (c) 1998, Dag Brattli,  <dagb@cs.uit.no>
+ *     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.
+ *
+ *     I, Thomas Davis, provide no warranty for any of this software.
+ *     This material is provided "AS-IS" and at no charge.
+ *
+ ********************************************************************/
+
+#include <linux/module.h>
+
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/ioctls.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irmod.h>
+#include <net/irda/irda_device.h>
+#include <net/irda/irtty.h>
+#include <net/irda/dongle.h>
+
+static void esi_open( struct irda_device *idev, int type);
+static void esi_close( struct irda_device *driver);
+static void esi_change_speed( struct irda_device *idev, int baud);
+static void esi_reset( struct irda_device *idev, int unused);
+static void esi_qos_init( struct irda_device *idev, struct qos_info *qos);
+
+static struct dongle dongle = {
+	ESI_DONGLE,
+	esi_open,
+	esi_close,
+	esi_reset,
+	esi_change_speed,
+	esi_qos_init,
+};
+
+__initfunc(void esi_init(void))
+{
+	irtty_register_dongle( &dongle);
+}
+
+void esi_cleanup(void)
+{
+	irtty_unregister_dongle( &dongle);
+}
+
+static void esi_open( struct irda_device *idev, int type)
+{
+	strcat( idev->name, " <-> esi");
+
+	idev->io.dongle_id = type;
+
+	MOD_INC_USE_COUNT;
+}
+
+static void esi_close( struct irda_device *driver)
+{
+	MOD_DEC_USE_COUNT;
+}
+
+/*
+ * Function esi_change_speed (tty, baud)
+ *
+ *    Set the speed for the Extended Systems JetEye PC ESI-9680 type dongle
+ *
+ */
+static void esi_change_speed( struct irda_device *idev, int baud)
+{
+	struct irtty_cb *self;
+	struct tty_struct *tty;
+	int arg = 0;
+        struct termios old_termios;
+	int cflag;
+	mm_segment_t fs;
+	
+	DEBUG( 4, __FUNCTION__ "()\n");
+	
+	ASSERT( idev != NULL, return;);
+	ASSERT( idev->magic == IRDA_DEVICE_MAGIC, return;);
+	
+	self = (struct irtty_cb *) idev->priv;
+	
+	ASSERT( self != NULL, return;);
+	ASSERT( self->magic == IRTTY_MAGIC, return;);
+
+	if ( !self->tty)
+		return;
+
+	tty = self->tty;
+	
+	old_termios = *(tty->termios);
+	cflag = tty->termios->c_cflag;
+
+	cflag &= ~CBAUD;
+
+	switch (baud) {
+	case 19200:
+		cflag |= B19200;
+		arg = TIOCM_DTR;
+		break;
+	case 115200:
+		cflag |= B115200;
+		arg = TIOCM_RTS | TIOCM_DTR;
+		break;
+	case 9600:
+	default:
+		cflag |= B9600;
+		arg = TIOCM_RTS;
+		break;
+	}
+		
+	tty->termios->c_cflag = cflag;
+	tty->driver.set_termios( tty, &old_termios);
+
+	/*
+	 *  The ioctl function, or actually set_modem_info in serial.c
+	 *  expects a pointer to the argument in user space. To hack us
+	 *  around this we use the set_fs function to fool the routines 
+	 *  that check if they are called from user space. We also need 
+	 *  to send a pointer to the argument so get_user() gets happy. 
+	 *  DB.
+	 */
+	fs = get_fs();
+	set_fs( get_ds());
+
+	if ( tty->driver.ioctl( tty, NULL, TIOCMSET, (unsigned long) &arg)) { 
+		DEBUG(0, "error setting ESI speed!\n");
+	}
+	set_fs(fs);
+}
+
+static void esi_reset( struct irda_device *idev, int unused)
+{
+	/* Empty */
+}
+
+/*
+ * Function esi_qos_init (qos)
+ *
+ *    Init QoS capabilities for the dongle
+ *
+ */
+static void esi_qos_init( struct irda_device *idev, struct qos_info *qos)
+{
+	qos->baud_rate.bits &= IR_9600|IR_19200|IR_115200;
+}
+
+#ifdef MODULE
+		
+/*
+ * Function init_module (void)
+ *
+ *    Initialize ESI module
+ *
+ */
+int init_module(void)
+{
+	esi_init();
+	return(0);
+}
+
+/*
+ * Function cleanup_module (void)
+ *
+ *    Cleanup ESI module
+ *
+ */
+void cleanup_module(void)
+{
+        esi_cleanup();
+}
+
+#endif