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-rw-r--r--drivers/net/irda/actisys.c314
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diff --git a/drivers/net/irda/actisys.c b/drivers/net/irda/actisys.c
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+++ b/drivers/net/irda/actisys.c
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+/*********************************************************************
+ *
+ * Filename: actisys.c
+ * Version: 0.4
+ * Description: Implementation for the ACTiSYS IR-220L and IR-220L+
+ * dongles
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Wed Oct 21 20:02:35 1998
+ * Modified at: Mon Jan 18 11:30:25 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1998 Dag Brattli, 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.
+ *
+ * Neither Dag Brattli nor University of Tromsų admit liability nor
+ * provide 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 actisys_reset( struct irda_device *dev, int unused);
+static void actisys_open( struct irda_device *idev, int type);
+static void actisys_close( struct irda_device *dev);
+static void actisys_change_speed( struct irda_device *dev, int baudrate);
+static void actisys_reset( struct irda_device *dev, int unused);
+static void actisys_init_qos( struct irda_device *idev, struct qos_info *qos);
+
+/* These are the baudrates supported */
+static int baud_rates[] = { 9600, 19200, 57600, 115200, 38400};
+
+static struct dongle dongle = {
+ ACTISYS_DONGLE,
+ actisys_open,
+ actisys_close,
+ actisys_reset,
+ actisys_change_speed,
+ actisys_init_qos,
+};
+
+__initfunc(void actisys_init(void))
+{
+ irtty_register_dongle(&dongle);
+}
+
+void actisys_cleanup(void)
+{
+ irtty_unregister_dongle(&dongle);
+}
+
+static void actisys_open( struct irda_device *idev, int type)
+{
+ strcat( idev->name, " <-> actisys");
+
+ idev->io.dongle_id = type;
+
+ MOD_INC_USE_COUNT;
+}
+
+static void actisys_close( struct irda_device *dev)
+{
+ MOD_DEC_USE_COUNT;
+}
+
+/*
+ * Function actisys_change_speed (tty, baud)
+ *
+ * Change speed of the ACTiSYS IR-220L and IR-220L+ type IrDA dongles.
+ * To cycle through the available baud rates, pulse RTS low for a few ms.
+ * To be compatible with the new IR-220L+, we have to reset the dongle
+ * first since its not possible cycle around anymore and still be
+ * compatible with both dongles :-(
+ */
+static void actisys_change_speed( struct irda_device *idev, int baudrate)
+{
+ struct irtty_cb *self;
+ struct tty_struct *tty;
+ int arg;
+ struct termios old_termios;
+ int cflag;
+ int current_baudrate;
+ int index = 0;
+ mm_segment_t fs;
+
+ DEBUG( 0, __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;);
+
+ current_baudrate = idev->qos.baud_rate.value;
+
+ /* Find the correct baudrate index for the currently used baudrate */
+ while ( current_baudrate != baud_rates[index])
+ index++;
+
+ DEBUG( 0, __FUNCTION__ "(), index=%d\n", index);
+
+ if ( !self->tty)
+ return;
+
+ tty = self->tty;
+
+ /* Cycle through avaiable baudrates until we reach the correct one */
+ while ( current_baudrate != baudrate) {
+ DEBUG( 0, __FUNCTION__ "(), current baudrate = %d\n",
+ baud_rates[index]);
+ DEBUG( 0, __FUNCTION__ "(), Clearing RTS\n");
+
+ /* Set DTR, clear RTS */
+ arg = TIOCM_DTR|TIOCM_OUT2;
+
+ fs = get_fs();
+ set_fs( get_ds());
+
+ if ( tty->driver.ioctl( tty, NULL, TIOCMSET,
+ (unsigned long) &arg)) {
+ DEBUG( 0, __FUNCTION__
+ "Error clearing RTS!\n");
+ }
+ set_fs(fs);
+
+ /* Wait at a few ms */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(2);
+
+ /* Set DTR, Set RTS */
+ arg = TIOCM_DTR | TIOCM_RTS |TIOCM_OUT2;
+
+ fs = get_fs();
+ set_fs( get_ds());
+
+ if ( tty->driver.ioctl( tty, NULL, TIOCMSET,
+ (unsigned long) &arg)) {
+ DEBUG( 0, __FUNCTION__ "Error setting RTS!\n");
+ }
+ set_fs(fs);
+
+ /* Wait at a few ms again */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout( 2);
+
+ /* Go to next baudrate */
+ if ( idev->io.dongle_id == ACTISYS_DONGLE)
+ index = (index+1) % 4; /* IR-220L */
+ else
+ index = (index+1) % 5; /* IR-220L+ */
+
+ current_baudrate = baud_rates[index];
+ }
+ DEBUG( 0, __FUNCTION__ "(), current baudrate = %d\n",
+ baud_rates[index]);
+
+ /* Now change the speed of the serial port */
+ old_termios = *(tty->termios);
+ cflag = tty->termios->c_cflag;
+
+ cflag &= ~CBAUD;
+
+ switch ( baudrate) {
+ case 9600:
+ default:
+ cflag |= B9600;
+ break;
+ case 19200:
+ cflag |= B19200;
+ break;
+ case 38400:
+ cflag |= B38400;
+ break;
+ case 57600:
+ cflag |= B57600;
+ break;
+ case 115200:
+ cflag |= B115200;
+ break;
+ }
+
+ tty->termios->c_cflag = cflag;
+
+ DEBUG( 0, __FUNCTION__ "(), Setting the speed of the serial port\n");
+ tty->driver.set_termios( tty, &old_termios);
+}
+
+/*
+ * Function actisys_reset (dev)
+ *
+ * Reset the Actisys type dongle. Warning, this function must only be
+ * called with a process context!
+ *
+ * 1. Clear DTR for a few ms.
+ *
+ */
+static void actisys_reset( struct irda_device *idev, int unused)
+{
+ struct irtty_cb *self;
+ struct tty_struct *tty;
+ int arg = 0;
+ 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;);
+
+ tty = self->tty;
+ if ( !tty)
+ return;
+
+ DEBUG( 0, __FUNCTION__ "(), Clearing DTR\n");
+ arg = TIOCM_RTS | TIOCM_OUT2;
+
+ fs = get_fs();
+ set_fs( get_ds());
+
+ if ( tty->driver.ioctl( tty, NULL, TIOCMSET,
+ (unsigned long) &arg))
+ {
+ DEBUG( 0, __FUNCTION__"(), ioctl error!\n");
+ }
+ set_fs(fs);
+
+ /* Sleep 10-20 ms*/
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(2);
+
+ DEBUG( 0, __FUNCTION__ "(), Setting DTR\n");
+ arg = TIOCM_RTS | TIOCM_DTR | TIOCM_OUT2;
+
+ fs = get_fs();
+ set_fs( get_ds());
+
+ if ( tty->driver.ioctl( tty, NULL, TIOCMSET,
+ (unsigned long) &arg))
+ {
+ DEBUG( 0, __FUNCTION__"(), ioctl error!\n");
+ }
+ set_fs(fs);
+
+ idev->qos.baud_rate.value = 9600;
+}
+
+/*
+ * Function actisys_init_qos (qos)
+ *
+ * Initialize QoS capabilities
+ *
+ */
+static void actisys_init_qos( struct irda_device *idev, struct qos_info *qos)
+{
+ qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
+
+ /* Remove support for 38400 if this is not a 220L+ dongle */
+ if ( idev->io.dongle_id == ACTISYS_DONGLE)
+ qos->baud_rate.bits &= ~IR_38400;
+
+ qos->min_turn_time.bits &= 0xfe; /* All except 0 ms */
+}
+
+#ifdef MODULE
+
+/*
+ * Function init_module (void)
+ *
+ * Initialize Actisys module
+ *
+ */
+int init_module(void)
+{
+ actisys_init();
+ return(0);
+}
+
+/*
+ * Function cleanup_module (void)
+ *
+ * Cleanup Actisys module
+ *
+ */
+void cleanup_module(void)
+{
+ actisys_cleanup();
+}
+
+#endif
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