Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 179 insertions, 0 deletions

diff --git a/drivers/net/irda/litelink.c b/drivers/net/irda/litelink.c
new file mode 100644
index 000000000000..7db11431d0f4
--- /dev/null
+++ b/drivers/net/irda/litelink.c
@@ -0,0 +1,179 @@
+/*********************************************************************
+ *                
+ * Filename:      litelink.c
+ * Version:       1.1
+ * Description:   Driver for the Parallax LiteLink dongle
+ * Status:        Stable
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Fri May  7 12:50:33 1999
+ * Modified at:   Fri Dec 17 09:14:23 1999
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1999 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.
+ * 
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *     GNU General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License 
+ *     along with this program; if not, write to the Free Software 
+ *     Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
+ *     MA 02111-1307 USA
+ *     
+ ********************************************************************/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+
+#define MIN_DELAY 25      /* 15 us, but wait a little more to be sure */
+#define MAX_DELAY 10000   /* 1 ms */
+
+static void litelink_open(dongle_t *self, struct qos_info *qos);
+static void litelink_close(dongle_t *self);
+static int  litelink_change_speed(struct irda_task *task);
+static int  litelink_reset(struct irda_task *task);
+
+/* These are the baudrates supported */
+static __u32 baud_rates[] = { 115200, 57600, 38400, 19200, 9600 };
+
+static struct dongle_reg dongle = {
+	.type = IRDA_LITELINK_DONGLE,
+	.open = litelink_open,
+	.close = litelink_close,
+	.reset = litelink_reset,
+	.change_speed = litelink_change_speed,
+	.owner = THIS_MODULE,
+};
+
+static int __init litelink_init(void)
+{
+	return irda_device_register_dongle(&dongle);
+}
+
+static void __exit litelink_cleanup(void)
+{
+	irda_device_unregister_dongle(&dongle);
+}
+
+static void litelink_open(dongle_t *self, struct qos_info *qos)
+{
+	qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
+	qos->min_turn_time.bits = 0x7f; /* Needs 0.01 ms */
+}
+
+static void litelink_close(dongle_t *self)
+{
+	/* Power off dongle */
+	self->set_dtr_rts(self->dev, FALSE, FALSE);
+}
+
+/*
+ * Function litelink_change_speed (task)
+ *
+ *    Change speed of the Litelink dongle. To cycle through the available 
+ *    baud rates, pulse RTS low for a few ms.  
+ */
+static int litelink_change_speed(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+	__u32 speed = (__u32) task->param;
+        int i;
+	
+	/* Clear RTS to reset dongle */
+	self->set_dtr_rts(self->dev, TRUE, FALSE);
+
+	/* Sleep a minimum of 15 us */
+	udelay(MIN_DELAY);
+
+	/* Go back to normal mode */
+	self->set_dtr_rts(self->dev, TRUE, TRUE);
+	
+	/* Sleep a minimum of 15 us */
+	udelay(MIN_DELAY);
+	
+	/* Cycle through avaiable baudrates until we reach the correct one */
+	for (i=0; i<5 && baud_rates[i] != speed; i++) {
+		/* Set DTR, clear RTS */
+		self->set_dtr_rts(self->dev, FALSE, TRUE);
+		
+		/* Sleep a minimum of 15 us */
+		udelay(MIN_DELAY);
+		
+		/* Set DTR, Set RTS */
+		self->set_dtr_rts(self->dev, TRUE, TRUE);
+		
+		/* Sleep a minimum of 15 us */
+		udelay(MIN_DELAY);
+        }
+	irda_task_next_state(task, IRDA_TASK_DONE);
+
+	return 0;
+}
+
+/*
+ * Function litelink_reset (task)
+ *
+ *      Reset the Litelink type dongle.
+ *
+ */
+static int litelink_reset(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+
+	/* Power on dongle */
+	self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+	/* Sleep a minimum of 15 us */
+	udelay(MIN_DELAY);
+
+	/* Clear RTS to reset dongle */
+	self->set_dtr_rts(self->dev, TRUE, FALSE);
+
+	/* Sleep a minimum of 15 us */
+	udelay(MIN_DELAY);
+
+	/* Go back to normal mode */
+	self->set_dtr_rts(self->dev, TRUE, TRUE);
+	
+	/* Sleep a minimum of 15 us */
+	udelay(MIN_DELAY);
+
+	/* This dongles speed defaults to 115200 bps */
+	self->speed = 115200;
+
+	irda_task_next_state(task, IRDA_TASK_DONE);
+
+	return 0;
+}
+
+MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
+MODULE_DESCRIPTION("Parallax Litelink dongle driver");	
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("irda-dongle-5"); /* IRDA_LITELINK_DONGLE */
+		
+/*
+ * Function init_module (void)
+ *
+ *    Initialize Litelink module
+ *
+ */
+module_init(litelink_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ *    Cleanup Litelink module
+ *
+ */
+module_exit(litelink_cleanup);