Linux-2.6.12-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, 282 insertions, 0 deletions

diff --git a/drivers/net/irda/tekram.c b/drivers/net/irda/tekram.c
new file mode 100644
index 000000000000..8f6258221cb0
--- /dev/null
+++ b/drivers/net/irda/tekram.c
@@ -0,0 +1,282 @@
+/*********************************************************************
+ *                
+ * Filename:      tekram.c
+ * Version:       1.2
+ * Description:   Implementation of the Tekram IrMate IR-210B dongle
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Wed Oct 21 20:02:35 1998
+ * Modified at:   Fri Dec 17 09:13:09 1999
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1998-1999 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.
+ *  
+ *     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/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+
+static void tekram_open(dongle_t *self, struct qos_info *qos);
+static void tekram_close(dongle_t *self);
+static int  tekram_change_speed(struct irda_task *task);
+static int  tekram_reset(struct irda_task *task);
+
+#define TEKRAM_115200 0x00
+#define TEKRAM_57600  0x01
+#define TEKRAM_38400  0x02
+#define TEKRAM_19200  0x03
+#define TEKRAM_9600   0x04
+
+#define TEKRAM_PW     0x10 /* Pulse select bit */
+
+static struct dongle_reg dongle = {
+	.type = IRDA_TEKRAM_DONGLE,
+	.open  = tekram_open,
+	.close = tekram_close,
+	.reset = tekram_reset,
+	.change_speed = tekram_change_speed,
+	.owner = THIS_MODULE,
+};
+
+static int __init tekram_init(void)
+{
+	return irda_device_register_dongle(&dongle);
+}
+
+static void __exit tekram_cleanup(void)
+{
+	irda_device_unregister_dongle(&dongle);
+}
+
+static void tekram_open(dongle_t *self, struct qos_info *qos)
+{
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+	qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
+	qos->min_turn_time.bits = 0x01; /* Needs at least 10 ms */	
+	irda_qos_bits_to_value(qos);
+}
+
+static void tekram_close(dongle_t *self)
+{
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+	/* Power off dongle */
+	self->set_dtr_rts(self->dev, FALSE, FALSE);
+
+	if (self->reset_task)
+		irda_task_delete(self->reset_task);
+	if (self->speed_task)
+		irda_task_delete(self->speed_task);
+}
+
+/*
+ * Function tekram_change_speed (dev, state, speed)
+ *
+ *    Set the speed for the Tekram IRMate 210 type dongle. Warning, this 
+ *    function must be called with a process context!
+ *
+ *    Algorithm
+ *    1. clear DTR 
+ *    2. set RTS, and wait at least 7 us
+ *    3. send Control Byte to the IR-210 through TXD to set new baud rate
+ *       wait until the stop bit of Control Byte is sent (for 9600 baud rate, 
+ *       it takes about 100 msec)
+ *    5. clear RTS (return to NORMAL Operation)
+ *    6. wait at least 50 us, new setting (baud rate, etc) takes effect here 
+ *       after
+ */
+static int tekram_change_speed(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+	__u32 speed = (__u32) task->param;
+	__u8 byte;
+	int ret = 0;
+	
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+	IRDA_ASSERT(task != NULL, return -1;);
+
+	if (self->speed_task && self->speed_task != task) {
+		IRDA_DEBUG(0, "%s(), busy!\n", __FUNCTION__ );
+		return msecs_to_jiffies(10);
+	} else
+		self->speed_task = task;
+
+	switch (speed) {
+	default:
+	case 9600:
+		byte = TEKRAM_PW|TEKRAM_9600;
+		break;
+	case 19200:
+		byte = TEKRAM_PW|TEKRAM_19200;
+		break;
+	case 38400:
+		byte = TEKRAM_PW|TEKRAM_38400;
+		break;
+	case 57600:
+		byte = TEKRAM_PW|TEKRAM_57600;
+		break;
+	case 115200:
+		byte = TEKRAM_115200;
+		break;
+	}
+
+	switch (task->state) {
+	case IRDA_TASK_INIT:
+	case IRDA_TASK_CHILD_INIT:		
+		/* 
+		 * Need to reset the dongle and go to 9600 bps before
+                 * programming 
+		 */
+		if (irda_task_execute(self, tekram_reset, NULL, task, 
+				      (void *) speed))
+		{
+			/* Dongle need more time to reset */
+			irda_task_next_state(task, IRDA_TASK_CHILD_WAIT);
+
+			/* Give reset 1 sec to finish */
+			ret = msecs_to_jiffies(1000);
+		} else
+			irda_task_next_state(task, IRDA_TASK_CHILD_DONE);
+		break;
+	case IRDA_TASK_CHILD_WAIT:
+		IRDA_WARNING("%s(), resetting dongle timed out!\n",
+			     __FUNCTION__);
+		ret = -1;
+		break;
+	case IRDA_TASK_CHILD_DONE:
+		/* Set DTR, Clear RTS */
+		self->set_dtr_rts(self->dev, TRUE, FALSE);
+	
+		/* Wait at least 7us */
+		udelay(14);
+
+		/* Write control byte */
+		self->write(self->dev, &byte, 1);
+		
+		irda_task_next_state(task, IRDA_TASK_WAIT);
+
+		/* Wait at least 100 ms */
+		ret = msecs_to_jiffies(150);
+		break;
+	case IRDA_TASK_WAIT:
+		/* Set DTR, Set RTS */
+		self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+		irda_task_next_state(task, IRDA_TASK_DONE);
+		self->speed_task = NULL;
+		break;
+	default:
+		IRDA_ERROR("%s(), unknown state %d\n",
+			   __FUNCTION__, task->state);
+		irda_task_next_state(task, IRDA_TASK_DONE);
+		self->speed_task = NULL;
+		ret = -1;
+		break;
+	}
+	return ret;
+}
+
+/*
+ * Function tekram_reset (driver)
+ *
+ *      This function resets the tekram dongle. Warning, this function 
+ *      must be called with a process context!! 
+ *
+ *      Algorithm:
+ *    	  0. Clear RTS and DTR, and wait 50 ms (power off the IR-210 )
+ *        1. clear RTS 
+ *        2. set DTR, and wait at least 1 ms 
+ *        3. clear DTR to SPACE state, wait at least 50 us for further 
+ *         operation
+ */
+int tekram_reset(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+	int ret = 0;
+
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+	IRDA_ASSERT(task != NULL, return -1;);
+
+	if (self->reset_task && self->reset_task != task) {
+		IRDA_DEBUG(0, "%s(), busy!\n", __FUNCTION__ );
+		return msecs_to_jiffies(10);
+	} else
+		self->reset_task = task;
+	
+	/* Power off dongle */
+	//self->set_dtr_rts(self->dev, FALSE, FALSE);
+	self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+	switch (task->state) {
+	case IRDA_TASK_INIT:
+		irda_task_next_state(task, IRDA_TASK_WAIT1);
+
+		/* Sleep 50 ms */
+		ret = msecs_to_jiffies(50);
+		break;
+	case IRDA_TASK_WAIT1:
+		/* Clear DTR, Set RTS */
+		self->set_dtr_rts(self->dev, FALSE, TRUE); 
+
+		irda_task_next_state(task, IRDA_TASK_WAIT2);
+		
+		/* Should sleep 1 ms */
+		ret = msecs_to_jiffies(1);
+		break;
+	case IRDA_TASK_WAIT2:
+		/* Set DTR, Set RTS */
+		self->set_dtr_rts(self->dev, TRUE, TRUE);
+	
+		/* Wait at least 50 us */
+		udelay(75);
+
+		irda_task_next_state(task, IRDA_TASK_DONE);
+		self->reset_task = NULL;
+		break;
+	default:
+		IRDA_ERROR("%s(), unknown state %d\n",
+			   __FUNCTION__, task->state);
+		irda_task_next_state(task, IRDA_TASK_DONE);		
+		self->reset_task = NULL;
+		ret = -1;
+	}
+	return ret;
+}
+
+MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
+MODULE_DESCRIPTION("Tekram IrMate IR-210B dongle driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("irda-dongle-0"); /* IRDA_TEKRAM_DONGLE */
+		
+/*
+ * Function init_module (void)
+ *
+ *    Initialize Tekram module
+ *
+ */
+module_init(tekram_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ *    Cleanup Tekram module
+ *
+ */
+module_exit(tekram_cleanup);