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!
diff --git a/drivers/net/irda/litelink-sir.c b/drivers/net/irda/litelink-sir.c
new file mode 100644
index 0000000..73261c5
--- /dev/null
+++ b/drivers/net/irda/litelink-sir.c
@@ -0,0 +1,209 @@
+/*********************************************************************
+ *
+ * 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
+ *
+ ********************************************************************/
+
+/*
+ * Modified at: Thu Jan 15 2003
+ * Modified by: Eugene Crosser <crosser@average.org>
+ *
+ * Convert to "new" IRDA infrastructure for kernel 2.6
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+
+#include "sir-dev.h"
+
+#define MIN_DELAY 25 /* 15 us, but wait a little more to be sure */
+#define MAX_DELAY 10000 /* 1 ms */
+
+static int litelink_open(struct sir_dev *dev);
+static int litelink_close(struct sir_dev *dev);
+static int litelink_change_speed(struct sir_dev *dev, unsigned speed);
+static int litelink_reset(struct sir_dev *dev);
+
+/* These are the baudrates supported - 9600 must be last one! */
+static unsigned baud_rates[] = { 115200, 57600, 38400, 19200, 9600 };
+
+static struct dongle_driver litelink = {
+ .owner = THIS_MODULE,
+ .driver_name = "Parallax LiteLink",
+ .type = IRDA_LITELINK_DONGLE,
+ .open = litelink_open,
+ .close = litelink_close,
+ .reset = litelink_reset,
+ .set_speed = litelink_change_speed,
+};
+
+static int __init litelink_sir_init(void)
+{
+ return irda_register_dongle(&litelink);
+}
+
+static void __exit litelink_sir_cleanup(void)
+{
+ irda_unregister_dongle(&litelink);
+}
+
+static int litelink_open(struct sir_dev *dev)
+{
+ struct qos_info *qos = &dev->qos;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+ /* Power up dongle */
+ sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+ /* Set the speeds we can accept */
+ qos->baud_rate.bits &= IR_115200|IR_57600|IR_38400|IR_19200|IR_9600;
+ qos->min_turn_time.bits = 0x7f; /* Needs 0.01 ms */
+ irda_qos_bits_to_value(qos);
+
+ /* irda thread waits 50 msec for power settling */
+
+ return 0;
+}
+
+static int litelink_close(struct sir_dev *dev)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+ /* Power off dongle */
+ sirdev_set_dtr_rts(dev, FALSE, FALSE);
+
+ return 0;
+}
+
+/*
+ * 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 sir_dev *dev, unsigned speed)
+{
+ int i;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+ /* dongle already reset by irda-thread - current speed (dongle and
+ * port) is the default speed (115200 for litelink!)
+ */
+
+ /* Cycle through avaiable baudrates until we reach the correct one */
+ for (i = 0; baud_rates[i] != speed; i++) {
+
+ /* end-of-list reached due to invalid speed request */
+ if (baud_rates[i] == 9600)
+ break;
+
+ /* Set DTR, clear RTS */
+ sirdev_set_dtr_rts(dev, FALSE, TRUE);
+
+ /* Sleep a minimum of 15 us */
+ udelay(MIN_DELAY);
+
+ /* Set DTR, Set RTS */
+ sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+ /* Sleep a minimum of 15 us */
+ udelay(MIN_DELAY);
+ }
+
+ dev->speed = baud_rates[i];
+
+ /* invalid baudrate should not happen - but if, we return -EINVAL and
+ * the dongle configured for 9600 so the stack has a chance to recover
+ */
+
+ return (dev->speed == speed) ? 0 : -EINVAL;
+}
+
+/*
+ * Function litelink_reset (task)
+ *
+ * Reset the Litelink type dongle.
+ *
+ */
+static int litelink_reset(struct sir_dev *dev)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+ /* probably the power-up can be dropped here, but with only
+ * 15 usec delay it's not worth the risk unless somebody with
+ * the hardware confirms it doesn't break anything...
+ */
+
+ /* Power on dongle */
+ sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+ /* Sleep a minimum of 15 us */
+ udelay(MIN_DELAY);
+
+ /* Clear RTS to reset dongle */
+ sirdev_set_dtr_rts(dev, TRUE, FALSE);
+
+ /* Sleep a minimum of 15 us */
+ udelay(MIN_DELAY);
+
+ /* Go back to normal mode */
+ sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+ /* Sleep a minimum of 15 us */
+ udelay(MIN_DELAY);
+
+ /* This dongles speed defaults to 115200 bps */
+ dev->speed = 115200;
+
+ 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_sir_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ * Cleanup Litelink module
+ *
+ */
+module_exit(litelink_sir_cleanup);