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, 232 insertions, 0 deletions

diff --git a/drivers/net/irda/tekram-sir.c b/drivers/net/irda/tekram-sir.c
new file mode 100644
index 000000000000..0dd6bc7af3f2
--- /dev/null
+++ b/drivers/net/irda/tekram-sir.c
@@ -0,0 +1,232 @@
+/*********************************************************************
+ *                
+ * Filename:      tekram.c
+ * Version:       1.3
+ * 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:   Sun Oct 27 22:02:38 2002
+ * Modified by:   Martin Diehl <mad@mdiehl.de>
+ * 
+ *     Copyright (c) 1998-1999 Dag Brattli,
+ *     Copyright (c) 2002 Martin Diehl,
+ *     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/init.h>
+
+#include <net/irda/irda.h>
+
+#include "sir-dev.h"
+
+static int tekram_delay = 150;		/* default is 150 ms */
+module_param(tekram_delay, int, 0);
+MODULE_PARM_DESC(tekram_delay, "tekram dongle write complete delay");
+
+static int tekram_open(struct sir_dev *);
+static int tekram_close(struct sir_dev *);
+static int tekram_change_speed(struct sir_dev *, unsigned);
+static int tekram_reset(struct sir_dev *);
+
+#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_driver tekram = {
+	.owner		= THIS_MODULE,
+	.driver_name	= "Tekram IR-210B",
+	.type		= IRDA_TEKRAM_DONGLE,
+	.open		= tekram_open,
+	.close		= tekram_close,
+	.reset		= tekram_reset,
+	.set_speed	= tekram_change_speed,
+};
+
+static int __init tekram_sir_init(void)
+{
+	if (tekram_delay < 1  ||  tekram_delay > 500)
+		tekram_delay = 200;
+	IRDA_DEBUG(1, "%s - using %d ms delay\n",
+		tekram.driver_name, tekram_delay);
+	return irda_register_dongle(&tekram);
+}
+
+static void __exit tekram_sir_cleanup(void)
+{
+	irda_unregister_dongle(&tekram);
+}
+
+static int tekram_open(struct sir_dev *dev)
+{
+	struct qos_info *qos = &dev->qos;
+
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+	sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+	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);
+
+	/* irda thread waits 50 msec for power settling */
+
+	return 0;
+}
+
+static int tekram_close(struct sir_dev *dev)
+{
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+	/* Power off dongle */
+	sirdev_set_dtr_rts(dev, FALSE, FALSE);
+
+	return 0;
+}
+
+/*
+ * 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)
+ *
+ *	[oops, why 100 msec? sending 1 byte (10 bits) takes 1.05 msec
+ *	 - is this probably to compensate for delays in tty layer?]
+ *
+ *    5. clear RTS (return to NORMAL Operation)
+ *    6. wait at least 50 us, new setting (baud rate, etc) takes effect here 
+ *       after
+ */
+
+#define TEKRAM_STATE_WAIT_SPEED	(SIRDEV_STATE_DONGLE_SPEED + 1)
+
+static int tekram_change_speed(struct sir_dev *dev, unsigned speed)
+{
+	unsigned state = dev->fsm.substate;
+	unsigned delay = 0;
+	u8 byte;
+	static int ret = 0;
+	
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+	switch(state) {
+	case SIRDEV_STATE_DONGLE_SPEED:
+
+		switch (speed) {
+		default:
+			speed = 9600;
+			ret = -EINVAL;
+			/* fall thru */
+		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;
+		}
+
+		/* Set DTR, Clear RTS */
+		sirdev_set_dtr_rts(dev, TRUE, FALSE);
+	
+		/* Wait at least 7us */
+		udelay(14);
+
+		/* Write control byte */
+		sirdev_raw_write(dev, &byte, 1);
+		
+		dev->speed = speed;
+
+		state = TEKRAM_STATE_WAIT_SPEED;
+		delay = tekram_delay;
+		break;
+
+	case TEKRAM_STATE_WAIT_SPEED:
+		/* Set DTR, Set RTS */
+		sirdev_set_dtr_rts(dev, TRUE, TRUE);
+		udelay(50);
+		break;
+
+	default:
+		IRDA_ERROR("%s - undefined state %d\n", __FUNCTION__, state);
+		ret = -EINVAL;
+		break;
+	}
+
+	dev->fsm.substate = state;
+	return (delay > 0) ? delay : 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
+ */
+
+static int tekram_reset(struct sir_dev *dev)
+{
+	IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+	/* Clear DTR, Set RTS */
+	sirdev_set_dtr_rts(dev, FALSE, TRUE); 
+
+	/* Should sleep 1 ms */
+	msleep(1);
+
+	/* Set DTR, Set RTS */
+	sirdev_set_dtr_rts(dev, TRUE, TRUE);
+	
+	/* Wait at least 50 us */
+	udelay(75);
+
+	dev->speed = 9600;
+
+	return 0;
+}
+
+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 */
+		
+module_init(tekram_sir_init);
+module_exit(tekram_sir_cleanup);