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, 250 insertions, 0 deletions

diff --git a/drivers/net/irda/girbil.c b/drivers/net/irda/girbil.c
new file mode 100644
index 0000000..248aeb0c
--- /dev/null
+++ b/drivers/net/irda/girbil.c
@@ -0,0 +1,250 @@
+/*********************************************************************
+ *                
+ * Filename:      girbil.c
+ * Version:       1.2
+ * Description:   Implementation for the Greenwich GIrBIL dongle
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Sat Feb  6 21:02:33 1999
+ * Modified at:   Fri Dec 17 09:13:20 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.
+ *  
+ *     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 int  girbil_reset(struct irda_task *task);
+static void girbil_open(dongle_t *self, struct qos_info *qos);
+static void girbil_close(dongle_t *self);
+static int  girbil_change_speed(struct irda_task *task);
+
+/* Control register 1 */
+#define GIRBIL_TXEN    0x01 /* Enable transmitter */
+#define GIRBIL_RXEN    0x02 /* Enable receiver */
+#define GIRBIL_ECAN    0x04 /* Cancel self emmited data */
+#define GIRBIL_ECHO    0x08 /* Echo control characters */
+
+/* LED Current Register (0x2) */
+#define GIRBIL_HIGH    0x20
+#define GIRBIL_MEDIUM  0x21
+#define GIRBIL_LOW     0x22
+
+/* Baud register (0x3) */
+#define GIRBIL_2400    0x30
+#define GIRBIL_4800    0x31	
+#define GIRBIL_9600    0x32
+#define GIRBIL_19200   0x33
+#define GIRBIL_38400   0x34	
+#define GIRBIL_57600   0x35	
+#define GIRBIL_115200  0x36
+
+/* Mode register (0x4) */
+#define GIRBIL_IRDA    0x40
+#define GIRBIL_ASK     0x41
+
+/* Control register 2 (0x5) */
+#define GIRBIL_LOAD    0x51 /* Load the new baud rate value */
+
+static struct dongle_reg dongle = {
+	.type = IRDA_GIRBIL_DONGLE,
+	.open = girbil_open,
+	.close = girbil_close,
+	.reset = girbil_reset,
+	.change_speed = girbil_change_speed,
+	.owner = THIS_MODULE,
+};
+
+static int __init girbil_init(void)
+{
+	return irda_device_register_dongle(&dongle);
+}
+
+static void __exit girbil_cleanup(void)
+{
+	irda_device_unregister_dongle(&dongle);
+}
+
+static void girbil_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 = 0x03;
+}
+
+static void girbil_close(dongle_t *self)
+{
+	/* Power off dongle */
+	self->set_dtr_rts(self->dev, FALSE, FALSE);
+}
+
+/*
+ * Function girbil_change_speed (dev, speed)
+ *
+ *    Set the speed for the Girbil type dongle.
+ *
+ */
+static int girbil_change_speed(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+	__u32 speed = (__u32) task->param;
+	__u8 control[2];
+	int ret = 0;
+
+	self->speed_task = task;
+
+	switch (task->state) {
+	case IRDA_TASK_INIT:
+		/* Need to reset the dongle and go to 9600 bps before
+                   programming */
+		if (irda_task_execute(self, girbil_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);
+		}
+		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 and Clear RTS to enter command mode */
+		self->set_dtr_rts(self->dev, FALSE, TRUE);
+
+		switch (speed) {
+		case 9600:
+		default:
+			control[0] = GIRBIL_9600;
+			break;
+		case 19200:
+			control[0] = GIRBIL_19200;
+			break;
+		case 34800:
+			control[0] = GIRBIL_38400;
+			break;
+		case 57600:
+			control[0] = GIRBIL_57600;
+			break;
+		case 115200:
+			control[0] = GIRBIL_115200;
+			break;
+		}
+		control[1] = GIRBIL_LOAD;
+		
+		/* Write control bytes */
+		self->write(self->dev, control, 2);
+		irda_task_next_state(task, IRDA_TASK_WAIT);
+		ret = msecs_to_jiffies(100);
+		break;
+	case IRDA_TASK_WAIT:
+		/* Go back to normal mode */
+		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 girbil_reset (driver)
+ *
+ *      This function resets the girbil dongle.
+ *
+ *      Algorithm:
+ *    	  0. set RTS, and wait at least 5 ms 
+ *        1. clear RTS 
+ */
+static int girbil_reset(struct irda_task *task)
+{
+	dongle_t *self = (dongle_t *) task->instance;
+	__u8 control = GIRBIL_TXEN | GIRBIL_RXEN;
+	int ret = 0;
+
+	self->reset_task = task;
+
+	switch (task->state) {
+	case IRDA_TASK_INIT:
+		/* Reset dongle */
+		self->set_dtr_rts(self->dev, TRUE, FALSE);
+		irda_task_next_state(task, IRDA_TASK_WAIT1);
+		/* Sleep at least 5 ms */
+		ret = msecs_to_jiffies(20);
+		break;
+	case IRDA_TASK_WAIT1:
+		/* Set DTR and clear RTS to enter command mode */
+		self->set_dtr_rts(self->dev, FALSE, TRUE);
+		irda_task_next_state(task, IRDA_TASK_WAIT2);
+		ret = msecs_to_jiffies(20);
+		break;
+	case IRDA_TASK_WAIT2:
+		/* Write control byte */
+		self->write(self->dev, &control, 1);
+		irda_task_next_state(task, IRDA_TASK_WAIT3);
+		ret = msecs_to_jiffies(20);
+		break;
+	case IRDA_TASK_WAIT3:
+		/* Go back to normal mode */
+		self->set_dtr_rts(self->dev, TRUE, TRUE);
+		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;
+		break;
+	}
+	return ret;
+}
+
+MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
+MODULE_DESCRIPTION("Greenwich GIrBIL dongle driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("irda-dongle-4"); /* IRDA_GIRBIL_DONGLE */
+	
+/*
+ * Function init_module (void)
+ *
+ *    Initialize Girbil module
+ *
+ */
+module_init(girbil_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ *    Cleanup Girbil module
+ *
+ */
+module_exit(girbil_cleanup);
+