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, 264 insertions, 0 deletions

diff --git a/drivers/net/irda/ma600-sir.c b/drivers/net/irda/ma600-sir.c
new file mode 100644
index 000000000000..ebed168b7da6
--- /dev/null
+++ b/drivers/net/irda/ma600-sir.c
@@ -0,0 +1,264 @@
+/*********************************************************************
+ *                
+ * Filename:      ma600.c
+ * Version:       0.1
+ * Description:   Implementation of the MA600 dongle
+ * Status:        Experimental.
+ * Author:        Leung <95Etwl@alumni.ee.ust.hk> http://www.engsvr.ust/~eetwl95
+ * Created at:    Sat Jun 10 20:02:35 2000
+ * Modified at:   Sat Aug 16 09:34:13 2003
+ * Modified by:   Martin Diehl <mad@mdiehl.de> (modified for new sir_dev)
+ *
+ * Note: very thanks to Mr. Maru Wang <maru@mobileaction.com.tw> for providing 
+ *       information on the MA600 dongle
+ * 
+ *     Copyright (c) 2000 Leung, 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/init.h>
+#include <linux/sched.h>
+
+#include <net/irda/irda.h>
+
+#include "sir-dev.h"
+
+static int ma600_open(struct sir_dev *);
+static int ma600_close(struct sir_dev *);
+static int ma600_change_speed(struct sir_dev *, unsigned);
+static int ma600_reset(struct sir_dev *);
+
+/* control byte for MA600 */
+#define MA600_9600      0x00
+#define MA600_19200     0x01
+#define MA600_38400     0x02
+#define MA600_57600     0x03
+#define MA600_115200    0x04
+#define MA600_DEV_ID1   0x05
+#define MA600_DEV_ID2   0x06
+#define MA600_2400      0x08
+
+static struct dongle_driver ma600 = {
+        .owner          = THIS_MODULE,
+        .driver_name    = "MA600",
+        .type           = IRDA_MA600_DONGLE,
+        .open           = ma600_open,
+        .close          = ma600_close,
+        .reset          = ma600_reset,
+        .set_speed      = ma600_change_speed,
+};
+
+
+static int __init ma600_sir_init(void)
+{
+        IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+        return irda_register_dongle(&ma600);
+}
+
+static void __exit ma600_sir_cleanup(void)
+{
+        IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+        irda_unregister_dongle(&ma600);
+}
+
+/*
+        Power on:
+                (0) Clear RTS and DTR for 1 second
+                (1) Set RTS and DTR for 1 second
+                (2) 9600 bps now
+        Note: assume RTS, DTR are clear before
+*/
+static int ma600_open(struct sir_dev *dev)
+{
+        struct qos_info *qos = &dev->qos;
+
+        IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+        sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+        /* Explicitly set the speeds we can accept */
+        qos->baud_rate.bits &= IR_2400|IR_9600|IR_19200|IR_38400
+                                |IR_57600|IR_115200;
+        /* Hm, 0x01 means 10ms - for >= 1ms we would need 0x07 */
+        qos->min_turn_time.bits = 0x01;         /* Needs at least 1 ms */       
+        irda_qos_bits_to_value(qos);
+
+        /* irda thread waits 50 msec for power settling */
+
+        return 0;
+}
+
+static int ma600_close(struct sir_dev *dev)
+{
+        IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+        /* Power off dongle */
+        sirdev_set_dtr_rts(dev, FALSE, FALSE);
+
+        return 0;
+}
+
+static __u8 get_control_byte(__u32 speed)
+{
+        __u8 byte;
+
+        switch (speed) {
+        default:
+        case 115200:
+                byte = MA600_115200;
+                break;
+        case 57600:
+                byte = MA600_57600;
+                break;
+        case 38400:
+                byte = MA600_38400;
+                break;
+        case 19200:
+                byte = MA600_19200;
+                break;
+        case 9600:
+                byte = MA600_9600;
+                break;
+        case 2400:
+                byte = MA600_2400;
+                break;
+        }
+
+        return byte;
+}
+
+/*
+ * Function ma600_change_speed (dev, speed)
+ *
+ *    Set the speed for the MA600 type dongle.
+ *
+ *    The dongle has already been reset to a known state (dongle default)
+ *    We cycle through speeds by pulsing RTS low and then high.
+ */
+
+/*
+ * Function ma600_change_speed (dev, speed)
+ *
+ *    Set the speed for the MA600 type dongle.
+ *
+ *    Algorithm
+ *    1. Reset (already done by irda thread state machine)
+ *    2. clear RTS, set DTR and wait for 1ms
+ *    3. send Control Byte to the MA600 through TXD to set new baud rate
+ *       wait until the stop bit of Control Byte is sent (for 9600 baud rate, 
+ *       it takes about 10 msec)
+ *    4. set RTS, set DTR (return to NORMAL Operation)
+ *    5. wait at least 10 ms, new setting (baud rate, etc) takes effect here 
+ *       after
+ */
+
+/* total delays are only about 20ms - let's just sleep for now to
+ * avoid the state machine complexity before we get things working
+ */
+
+static int ma600_change_speed(struct sir_dev *dev, unsigned speed)
+{
+        u8      byte;
+        
+        IRDA_DEBUG(2, "%s(), speed=%d (was %d)\n", __FUNCTION__,
+                speed, dev->speed);
+
+        /* dongle already reset, dongle and port at default speed (9600) */
+
+        /* Set RTS low for 1 ms */
+        sirdev_set_dtr_rts(dev, TRUE, FALSE);
+        mdelay(1);
+
+        /* Write control byte */
+        byte = get_control_byte(speed);
+        sirdev_raw_write(dev, &byte, sizeof(byte));
+
+        /* Wait at least 10ms: fake wait_until_sent - 10 bits at 9600 baud*/
+        msleep(15);                                     /* old ma600 uses 15ms */
+
+#if 1
+        /* read-back of the control byte. ma600 is the first dongle driver
+         * which uses this so there might be some unidentified issues.
+         * Disable this in case of problems with readback.
+         */
+
+        sirdev_raw_read(dev, &byte, sizeof(byte));
+        if (byte != get_control_byte(speed))  {
+                IRDA_WARNING("%s(): bad control byte read-back %02x != %02x\n",
+                             __FUNCTION__, (unsigned) byte,
+                             (unsigned) get_control_byte(speed));
+                return -1;
+        }
+        else
+                IRDA_DEBUG(2, "%s() control byte write read OK\n", __FUNCTION__);
+#endif
+
+        /* Set DTR, Set RTS */
+        sirdev_set_dtr_rts(dev, TRUE, TRUE);
+
+        /* Wait at least 10ms */
+        msleep(10);
+
+        /* dongle is now switched to the new speed */
+        dev->speed = speed;
+
+        return 0;
+}
+
+/*
+ * Function ma600_reset (dev)
+ *
+ *      This function resets the ma600 dongle.
+ *
+ *      Algorithm:
+ *        0. DTR=0, RTS=1 and wait 10 ms
+ *        1. DTR=1, RTS=1 and wait 10 ms
+ *        2. 9600 bps now
+ */
+
+/* total delays are only about 20ms - let's just sleep for now to
+ * avoid the state machine complexity before we get things working
+ */
+
+int ma600_reset(struct sir_dev *dev)
+{
+        IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+        /* Reset the dongle : set DTR low for 10 ms */
+        sirdev_set_dtr_rts(dev, FALSE, TRUE);
+        msleep(10);
+
+        /* Go back to normal mode */
+        sirdev_set_dtr_rts(dev, TRUE, TRUE);
+        msleep(10);
+
+        dev->speed = 9600;      /* That's the dongle-default */
+
+        return 0;
+}
+
+MODULE_AUTHOR("Leung <95Etwl@alumni.ee.ust.hk> http://www.engsvr.ust/~eetwl95");
+MODULE_DESCRIPTION("MA600 dongle driver version 0.1");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("irda-dongle-11"); /* IRDA_MA600_DONGLE */
+                
+module_init(ma600_sir_init);
+module_exit(ma600_sir_cleanup);
+